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 &&
}
}
+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 ...
int rates_idx = -1;
bool send_to_cooked;
bool acked;
+ struct ieee80211_bar *bar;
+ u16 tid;
for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
if (info->status.rates[i].idx < 0) {
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);
}
+ if (!acked && ieee80211_is_back_req(fc)) {
+ /*
+ * BAR failed, let's tear down the BA session as a
+ * last resort as some STAs (Intel 5100 on Windows)
+ * can get stuck when the BA window isn't flushed
+ * correctly.
+ */
+ 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_set_bar_pending(sta, tid, ssn);
+ }
+ }
+
if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
ieee80211_handle_filtered_frame(local, sta, skb);
rcu_read_unlock();
local->hw_roc_skb_for_status = NULL;
}
- if (cookie == local->hw_offchan_tx_cookie)
- local->hw_offchan_tx_cookie = 0;
-
cfg80211_mgmt_tx_status(
skb->dev, cookie, skb->data, skb->len,
!!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC);