Merge branch 'for-linville' of git://github.com/lucacoelho/wl12xx

[pandora-kernel.git] / net / mac80211 / status.c

diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index e51bd2a..1426846 100644 (file)
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -127,12 +127,32 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
        dev_kfree_skb(skb);
 }
 
+static void ieee80211_check_pending_bar(struct sta_info *sta, u8 *addr, u8 tid)
+{
+       struct tid_ampdu_tx *tid_tx;
+
+       tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
+       if (!tid_tx || !tid_tx->bar_pending)
+               return;
+
+       tid_tx->bar_pending = false;
+       ieee80211_send_bar(&sta->sdata->vif, addr, tid, tid_tx->failed_bar_ssn);
+}
+
 static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
 {
        struct ieee80211_mgmt *mgmt = (void *) skb->data;
        struct ieee80211_local *local = sta->local;
        struct ieee80211_sub_if_data *sdata = sta->sdata;
 
+       if (ieee80211_is_data_qos(mgmt->frame_control)) {
+               struct ieee80211_hdr *hdr = (void *) skb->data;
+               u8 *qc = ieee80211_get_qos_ctl(hdr);
+               u16 tid = qc[0] & 0xf;
+
+               ieee80211_check_pending_bar(sta, hdr->addr1, tid);
+       }
+
        if (ieee80211_is_action(mgmt->frame_control) &&
            sdata->vif.type == NL80211_IFTYPE_STATION &&
            mgmt->u.action.category == WLAN_CATEGORY_HT &&
@@ -161,6 +181,18 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
        }
 }
 
+static void ieee80211_set_bar_pending(struct sta_info *sta, u8 tid, u16 ssn)
+{
+       struct tid_ampdu_tx *tid_tx;
+
+       tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
+       if (!tid_tx)
+               return;
+
+       tid_tx->failed_bar_ssn = ssn;
+       tid_tx->bar_pending = true;
+}
+
 /*
  * Use a static threshold for now, best value to be determined
  * by testing ...
@@ -241,7 +273,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
                        tid = qc[0] & 0xf;
                        ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10)
                                                & IEEE80211_SCTL_SEQ);
-                       ieee80211_send_bar(sta->sdata, hdr->addr1,
+                       ieee80211_send_bar(&sta->sdata->vif, hdr->addr1,
                                           tid, ssn);
                }
 
@@ -254,10 +286,13 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
                         */
                        bar = (struct ieee80211_bar *) skb->data;
                        if (!(bar->control & IEEE80211_BAR_CTRL_MULTI_TID)) {
+                               u16 ssn = le16_to_cpu(bar->start_seq_num);
+
                                tid = (bar->control &
                                       IEEE80211_BAR_CTRL_TID_INFO_MASK) >>
                                      IEEE80211_BAR_CTRL_TID_INFO_SHIFT;
-                               ieee80211_stop_tx_ba_session(&sta->sta, tid);
+
+                               ieee80211_set_bar_pending(sta, tid, ssn);
                        }
                }