From 04baaa27b43d389879237b32f8bd194a94cf1ca7 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 13 Nov 2012 21:28:44 +0100 Subject: iwlwifi: fix monitor mode FCS flag When the firmware is in SNIFFER mode, it leaves the FCS at the end of frame. Not telling mac80211 means it won't add the right flag to the radiotap header and that confuses wireshark. Since mac80211 doesn't have a per-packet flag, set the HW flag dynamically. This works as the monitor vif can only be present in the driver by itself. This fixes a regression introduced by my commit 578977264199de9815ace51ade87cec4894cf010 Author: Johannes Berg Date: Fri May 11 10:53:18 2012 +0200 iwlwifi: support explicit monitor interface Cc: stable@vger.kernel.org [3.5+] Reported-by: MARK PHILLIPS Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c index fa4d1b8..2d9eee9 100644 --- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c @@ -1354,6 +1354,20 @@ static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, vif_priv->ctx = ctx; ctx->vif = vif; + /* + * In SNIFFER device type, the firmware reports the FCS to + * the host, rather than snipping it off. Unfortunately, + * mac80211 doesn't (yet) provide a per-packet flag for + * this, so that we have to set the hardware flag based + * on the interfaces added. As the monitor interface can + * only be present by itself, and will be removed before + * other interfaces are added, this is safe. + */ + if (vif->type == NL80211_IFTYPE_MONITOR) + priv->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS; + else + priv->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS; + err = iwl_setup_interface(priv, ctx); if (!err || reset) goto out; -- cgit v0.10.2 From e1b69fdf33f63cfa600b992172d7376f9d9ef2e9 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Mon, 15 Oct 2012 17:57:36 +0200 Subject: iwlwifi: don't WARN when a non empty queue is disabled This can happen when we shut down suddenly an interface. Cc: stable@vger.kernel.org Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index 105e3af..79a4ddc 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -480,20 +480,12 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - u16 rd_ptr, wr_ptr; - int n_bd = trans_pcie->txq[txq_id].q.n_bd; if (!test_and_clear_bit(txq_id, trans_pcie->queue_used)) { WARN_ONCE(1, "queue %d not used", txq_id); return; } - rd_ptr = iwl_read_prph(trans, SCD_QUEUE_RDPTR(txq_id)) & (n_bd - 1); - wr_ptr = iwl_read_prph(trans, SCD_QUEUE_WRPTR(txq_id)); - - WARN_ONCE(rd_ptr != wr_ptr, "queue %d isn't empty: [%d,%d]", - txq_id, rd_ptr, wr_ptr); - iwl_txq_set_inactive(trans, txq_id); IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id); } -- cgit v0.10.2