iwlagn: set BT IGNORE for some frames

The BT ignore bit should be set when transmitting
auth, assoc response and eap frames.

Also, scanning should set the BT ignore bit for the
probe request transmission; Note that we only use
the non-shared antenna.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index eedd71f5506b3b2c4dbd4e19be070fe70ba4667a..e1b5250ea63771b54ffd77bec210d56d2e4587fc 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -1290,6 +1290,12 @@ void iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
                        rate = IWL_RATE_1M_PLCP;
                        rate_flags = RATE_MCS_CCK_MSK;
                }
+               /*
+                * 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->advanced_bt_coexist)
+                       scan->tx_cmd.tx_flags |= TX_CMD_FLG_IGNORE_BT;
                scan->good_CRC_th = IWL_GOOD_CRC_TH_DISABLED;
                break;
        case IEEE80211_BAND_5GHZ:

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index 3fc982e879215d23412c9e97f2377cc259de2f0a..8d2ffffe01b2d3c4ca30518b8232083b6d156b05 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -342,10 +342,11 @@ static inline int get_queue_from_ac(u16 ac)
  * handle build REPLY_TX command notification.
  */
 static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv,
-                                 struct iwl_tx_cmd *tx_cmd,
-                                 struct ieee80211_tx_info *info,
-                                 struct ieee80211_hdr *hdr,
-                                 u8 std_id)
+                                       struct sk_buff *skb,
+                                       struct iwl_tx_cmd *tx_cmd,
+                                       struct ieee80211_tx_info *info,
+                                       struct ieee80211_hdr *hdr,
+                                       u8 std_id)
 {
        __le16 fc = hdr->frame_control;
        __le32 tx_flags = tx_cmd->tx_flags;
@@ -365,6 +366,12 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv,
 
        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->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)))
+               tx_flags |= TX_CMD_FLG_IGNORE_BT;
 
 
        tx_cmd->sta_id = std_id;
@@ -655,7 +662,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
                iwlagn_tx_cmd_build_hwcrypto(priv, info, tx_cmd, skb, sta_id);
 
        /* TODO need this for burst mode later on */
-       iwlagn_tx_cmd_build_basic(priv, tx_cmd, info, hdr, sta_id);
+       iwlagn_tx_cmd_build_basic(priv, skb, tx_cmd, info, hdr, sta_id);
        iwl_dbg_log_tx_data_frame(priv, len, hdr);
 
        iwlagn_tx_cmd_build_rate(priv, tx_cmd, info, fc);