Merge branch 'be2net-next'

Sathya Perla says:

====================
be2net: patch set

Hi Dave, pls consider commiting the following patches to the net-next tree.
Thanks!

Patch 1 replaces the be_max_eqs() macro with two new macros called
be_max_nic_eqs() and be_max_func_eqs() to clear confusion in that part
of the code.

Patch 2 adds support to configure asymmetric number of rx/tx queues via
ethtool set-channels option.

Patch 3 disables EVB when VFs are not enabled on a BE3 SR-IOV config to
avoid the broadcast echo problem.

Patch 4 updates copyright markings in be2net src files

Patch 5 updates the be2net maintainers' list
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

7 files changed, 131 insertions, 49 deletions

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index e1e6c40..4555e04 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
@@ -443,6 +443,7 @@ struct be_resources {
 	u16 max_iface_count;
 	u16 max_mcc_count;
 	u16 max_evt_qs;
+	u16 max_nic_evt_qs;	/* NIC's share of evt qs */
 	u32 if_cap_flags;
 	u32 vf_if_cap_flags;	/* VF if capability flags */
 	u32 flags;
@@ -525,7 +526,8 @@ struct be_adapter {
 	spinlock_t mcc_lock;	/* For serializing mcc cmds to BE card */
 	spinlock_t mcc_cq_lock;
 
-	u16 cfg_num_qs;		/* configured via set-channels */
+	u16 cfg_num_rx_irqs;		/* configured via set-channels */
+	u16 cfg_num_tx_irqs;		/* configured via set-channels */
 	u16 num_evt_qs;
 	u16 num_msix_vec;
 	struct be_eq_obj eq_obj[MAX_EVT_QS];
@@ -644,18 +646,42 @@ struct be_adapter {
 #define be_max_txqs(adapter)		(adapter->res.max_tx_qs)
 #define be_max_prio_txqs(adapter)	(adapter->res.max_prio_tx_qs)
 #define be_max_rxqs(adapter)		(adapter->res.max_rx_qs)
-#define be_max_eqs(adapter)		(adapter->res.max_evt_qs)
+/* Max number of EQs available for the function (NIC + RoCE (if enabled)) */
+#define be_max_func_eqs(adapter)	(adapter->res.max_evt_qs)
+/* Max number of EQs available avaialble only for NIC */
+#define be_max_nic_eqs(adapter)		(adapter->res.max_nic_evt_qs)
 #define be_if_cap_flags(adapter)	(adapter->res.if_cap_flags)
 #define be_max_pf_pool_rss_tables(adapter)	\
 				(adapter->pool_res.max_rss_tables)
+/* Max irqs avaialble for NIC */
+#define be_max_irqs(adapter)		\
+			(min_t(u16, be_max_nic_eqs(adapter), num_online_cpus()))
 
-static inline u16 be_max_qs(struct be_adapter *adapter)
+/* Max irqs *needed* for RX queues */
+static inline u16 be_max_rx_irqs(struct be_adapter *adapter)
 {
-	/* If no RSS, need atleast the one def RXQ */
+	/* If no RSS, need atleast one irq for def-RXQ */
 	u16 num = max_t(u16, be_max_rss(adapter), 1);
 
-	num = min(num, be_max_eqs(adapter));
-	return min_t(u16, num, num_online_cpus());
+	return min_t(u16, num, be_max_irqs(adapter));
+}
+
+/* Max irqs *needed* for TX queues */
+static inline u16 be_max_tx_irqs(struct be_adapter *adapter)
+{
+	return min_t(u16, be_max_txqs(adapter), be_max_irqs(adapter));
+}
+
+/* Max irqs *needed* for combined queues */
+static inline u16 be_max_qp_irqs(struct be_adapter *adapter)
+{
+	return min(be_max_tx_irqs(adapter), be_max_rx_irqs(adapter));
+}
+
+/* Max irqs *needed* for RX and TX queues together */
+static inline u16 be_max_any_irqs(struct be_adapter *adapter)
+{
+	return max(be_max_tx_irqs(adapter), be_max_rx_irqs(adapter));
 }
 
 /* Is BE in pvid_tagging mode */
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 29aeb91..2cc1175 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
@@ -87,6 +87,11 @@ static struct be_cmd_priv_map cmd_priv_map[] = {
 		CMD_SUBSYSTEM_LOWLEVEL,
 		BE_PRIV_DEVCFG | BE_PRIV_DEVSEC
 	},
+	{
+		OPCODE_COMMON_SET_HSW_CONFIG,
+		CMD_SUBSYSTEM_COMMON,
+		BE_PRIV_DEVCFG | BE_PRIV_VHADM
+	},
 };
 
 static bool be_cmd_allowed(struct be_adapter *adapter, u8 opcode, u8 subsystem)
@@ -3850,6 +3855,10 @@ int be_cmd_set_hsw_config(struct be_adapter *adapter, u16 pvid,
 	void *ctxt;
 	int status;
 
+	if (!be_cmd_allowed(adapter, OPCODE_COMMON_SET_HSW_CONFIG,
+			    CMD_SUBSYSTEM_COMMON))
+		return -EPERM;
+
 	spin_lock_bh(&adapter->mcc_lock);
 
 	wrb = wrb_from_mccq(adapter);
@@ -3871,7 +3880,7 @@ int be_cmd_set_hsw_config(struct be_adapter *adapter, u16 pvid,
 		AMAP_SET_BITS(struct amap_set_hsw_context, pvid_valid, ctxt, 1);
 		AMAP_SET_BITS(struct amap_set_hsw_context, pvid, ctxt, pvid);
 	}
-	if (!BEx_chip(adapter) && hsw_mode) {
+	if (hsw_mode) {
 		AMAP_SET_BITS(struct amap_set_hsw_context, interface_id,
 			      ctxt, adapter->hba_port_num);
 		AMAP_SET_BITS(struct amap_set_hsw_context, pport, ctxt, 1);
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index cb96ddd..0d6be22 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index c569cd7..50e7be5 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
@@ -1196,9 +1196,17 @@ static void be_get_channels(struct net_device *netdev,
 			    struct ethtool_channels *ch)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
+	u16 num_rx_irqs = max_t(u16, adapter->num_rss_qs, 1);
 
-	ch->combined_count = adapter->num_evt_qs;
-	ch->max_combined = be_max_qs(adapter);
+	/* num_tx_qs is always same as the number of irqs used for TX */
+	ch->combined_count = min(adapter->num_tx_qs, num_rx_irqs);
+	ch->rx_count = num_rx_irqs - ch->combined_count;
+	ch->tx_count = adapter->num_tx_qs - ch->combined_count;
+
+	ch->max_combined = be_max_qp_irqs(adapter);
+	/* The user must create atleast one combined channel */
+	ch->max_rx = be_max_rx_irqs(adapter) - 1;
+	ch->max_tx = be_max_tx_irqs(adapter) - 1;
 }
 
 static int be_set_channels(struct net_device  *netdev,
@@ -1207,11 +1215,22 @@ static int be_set_channels(struct net_device  *netdev,
 	struct be_adapter *adapter = netdev_priv(netdev);
 	int status;
 
-	if (ch->rx_count || ch->tx_count || ch->other_count ||
-	    !ch->combined_count || ch->combined_count > be_max_qs(adapter))
+	/* we support either only combined channels or a combination of
+	 * combined and either RX-only or TX-only channels.
+	 */
+	if (ch->other_count || !ch->combined_count ||
+	    (ch->rx_count && ch->tx_count))
+		return -EINVAL;
+
+	if (ch->combined_count > be_max_qp_irqs(adapter) ||
+	    (ch->rx_count &&
+	     (ch->rx_count + ch->combined_count) > be_max_rx_irqs(adapter)) ||
+	    (ch->tx_count &&
+	     (ch->tx_count + ch->combined_count) > be_max_tx_irqs(adapter)))
 		return -EINVAL;
 
-	adapter->cfg_num_qs = ch->combined_count;
+	adapter->cfg_num_rx_irqs = ch->combined_count + ch->rx_count;
+	adapter->cfg_num_tx_irqs = ch->combined_count + ch->tx_count;
 
 	status = be_update_queues(adapter);
 	return be_cmd_status(status);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 3d94789..1873c74 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
@@ -2620,8 +2620,10 @@ static int be_evt_queues_create(struct be_adapter *adapter)
 	struct be_aic_obj *aic;
 	int i, rc;
 
+	/* need enough EQs to service both RX and TX queues */
 	adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
-				    adapter->cfg_num_qs);
+				    max(adapter->cfg_num_rx_irqs,
+					adapter->cfg_num_tx_irqs));
 
 	for_all_evt_queues(adapter, eqo, i) {
 		int numa_node = dev_to_node(&adapter->pdev->dev);
@@ -2726,7 +2728,7 @@ static int be_tx_qs_create(struct be_adapter *adapter)
 	struct be_eq_obj *eqo;
 	int status, i;
 
-	adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
+	adapter->num_tx_qs = min(adapter->num_evt_qs, adapter->cfg_num_tx_irqs);
 
 	for_all_tx_queues(adapter, txo, i) {
 		cq = &txo->cq;
@@ -2784,11 +2786,11 @@ static int be_rx_cqs_create(struct be_adapter *adapter)
 	struct be_rx_obj *rxo;
 	int rc, i;
 
-	/* We can create as many RSS rings as there are EQs. */
-	adapter->num_rss_qs = adapter->num_evt_qs;
+	adapter->num_rss_qs =
+			min(adapter->num_evt_qs, adapter->cfg_num_rx_irqs);
 
 	/* We'll use RSS only if atleast 2 RSS rings are supported. */
-	if (adapter->num_rss_qs <= 1)
+	if (adapter->num_rss_qs < 2)
 		adapter->num_rss_qs = 0;
 
 	adapter->num_rx_qs = adapter->num_rss_qs + adapter->need_def_rxq;
@@ -3249,18 +3251,22 @@ static void be_msix_disable(struct be_adapter *adapter)
 
 static int be_msix_enable(struct be_adapter *adapter)
 {
-	int i, num_vec;
+	unsigned int i, num_vec, max_roce_eqs;
 	struct device *dev = &adapter->pdev->dev;
 
-	/* If RoCE is supported, program the max number of NIC vectors that
-	 * may be configured via set-channels, along with vectors needed for
-	 * RoCe. Else, just program the number we'll use initially.
+	/* If RoCE is supported, program the max number of vectors that
+	 * could be used for NIC and RoCE, else, just program the number
+	 * we'll use initially.
 	 */
-	if (be_roce_supported(adapter))
-		num_vec = min_t(int, 2 * be_max_eqs(adapter),
-				2 * num_online_cpus());
-	else
-		num_vec = adapter->cfg_num_qs;
+	if (be_roce_supported(adapter)) {
+		max_roce_eqs =
+			be_max_func_eqs(adapter) - be_max_nic_eqs(adapter);
+		max_roce_eqs = min(max_roce_eqs, num_online_cpus());
+		num_vec = be_max_any_irqs(adapter) + max_roce_eqs;
+	} else {
+		num_vec = max(adapter->cfg_num_rx_irqs,
+			      adapter->cfg_num_tx_irqs);
+	}
 
 	for (i = 0; i < num_vec; i++)
 		adapter->msix_entries[i].entry = i;
@@ -3723,6 +3729,11 @@ static void be_vf_clear(struct be_adapter *adapter)
 
 		be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
 	}
+
+	if (BE3_chip(adapter))
+		be_cmd_set_hsw_config(adapter, 0, 0,
+				      adapter->if_handle,
+				      PORT_FWD_TYPE_PASSTHRU, 0);
 done:
 	kfree(adapter->vf_cfg);
 	adapter->num_vfs = 0;
@@ -4013,6 +4024,15 @@ static int be_vf_setup(struct be_adapter *adapter)
 		}
 	}
 
+	if (BE3_chip(adapter)) {
+		/* On BE3, enable VEB only when SRIOV is enabled */
+		status = be_cmd_set_hsw_config(adapter, 0, 0,
+					       adapter->if_handle,
+					       PORT_FWD_TYPE_VEB, 0);
+		if (status)
+			goto err;
+	}
+
 	adapter->flags |= BE_FLAGS_SRIOV_ENABLED;
 	return 0;
 err:
@@ -4219,16 +4239,13 @@ static int be_get_resources(struct be_adapter *adapter)
 	struct be_resources res = {0};
 	int status;
 
-	if (BEx_chip(adapter)) {
-		BEx_get_resources(adapter, &res);
-		adapter->res = res;
-	}
-
 	/* For Lancer, SH etc read per-function resource limits from FW.
 	 * GET_FUNC_CONFIG returns per function guaranteed limits.
 	 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
 	 */
-	if (!BEx_chip(adapter)) {
+	if (BEx_chip(adapter)) {
+		BEx_get_resources(adapter, &res);
+	} else {
 		status = be_cmd_get_func_config(adapter, &res);
 		if (status)
 			return status;
@@ -4237,13 +4254,13 @@ static int be_get_resources(struct be_adapter *adapter)
 		if (res.max_rss_qs && res.max_rss_qs == res.max_rx_qs &&
 		    !(res.if_cap_flags & BE_IF_FLAGS_DEFQ_RSS))
 			res.max_rss_qs -= 1;
-
-		/* If RoCE may be enabled stash away half the EQs for RoCE */
-		if (be_roce_supported(adapter))
-			res.max_evt_qs /= 2;
-		adapter->res = res;
 	}
 
+	/* If RoCE is supported stash away half the EQs for RoCE */
+	res.max_nic_evt_qs = be_roce_supported(adapter) ?
+				res.max_evt_qs / 2 : res.max_evt_qs;
+	adapter->res = res;
+
 	/* If FW supports RSS default queue, then skip creating non-RSS
 	 * queue for non-IP traffic.
 	 */
@@ -4252,15 +4269,17 @@ static int be_get_resources(struct be_adapter *adapter)
 
 	dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
 		 be_max_txqs(adapter), be_max_rxqs(adapter),
-		 be_max_rss(adapter), be_max_eqs(adapter),
+		 be_max_rss(adapter), be_max_nic_eqs(adapter),
 		 be_max_vfs(adapter));
 	dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
 		 be_max_uc(adapter), be_max_mc(adapter),
 		 be_max_vlans(adapter));
 
-	/* Sanitize cfg_num_qs based on HW and platform limits */
-	adapter->cfg_num_qs = min_t(u16, netif_get_num_default_rss_queues(),
-				    be_max_qs(adapter));
+	/* Ensure RX and TX queues are created in pairs at init time */
+	adapter->cfg_num_rx_irqs =
+				min_t(u16, netif_get_num_default_rss_queues(),
+				      be_max_qp_irqs(adapter));
+	adapter->cfg_num_tx_irqs = adapter->cfg_num_rx_irqs;
 	return 0;
 }
 
@@ -4373,7 +4392,7 @@ static int be_if_create(struct be_adapter *adapter)
 	u32 cap_flags = be_if_cap_flags(adapter);
 	int status;
 
-	if (adapter->cfg_num_qs == 1)
+	if (adapter->cfg_num_rx_irqs == 1)
 		cap_flags &= ~(BE_IF_FLAGS_DEFQ_RSS | BE_IF_FLAGS_RSS);
 
 	en_flags &= cap_flags;
@@ -4559,6 +4578,15 @@ static int be_setup(struct be_adapter *adapter)
 		be_cmd_set_logical_link_config(adapter,
 					       IFLA_VF_LINK_STATE_AUTO, 0);
 
+	/* BE3 EVB echoes broadcast/multicast packets back to PF's vport
+	 * confusing a linux bridge or OVS that it might be connected to.
+	 * Set the EVB to PASSTHRU mode which effectively disables the EVB
+	 * when SRIOV is not enabled.
+	 */
+	if (BE3_chip(adapter))
+		be_cmd_set_hsw_config(adapter, 0, 0, adapter->if_handle,
+				      PORT_FWD_TYPE_PASSTHRU, 0);
+
 	if (adapter->num_vfs)
 		be_vf_setup(adapter);
 
diff --git a/drivers/net/ethernet/emulex/benet/be_roce.c b/drivers/net/ethernet/emulex/benet/be_roce.c
index 4089156..2b62841 100644
--- a/drivers/net/ethernet/emulex/benet/be_roce.c
+++ b/drivers/net/ethernet/emulex/benet/be_roce.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/drivers/net/ethernet/emulex/benet/be_roce.h b/drivers/net/ethernet/emulex/benet/be_roce.h
index fde6097..e51719a 100644
--- a/drivers/net/ethernet/emulex/benet/be_roce.h
+++ b/drivers/net/ethernet/emulex/benet/be_roce.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005 - 2015 Emulex
+ * Copyright (C) 2005 - 2016 Broadcom
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or