package/mac80211/patches/565-ath9k_optimize_queue_wake.patch

   1 --- a/drivers/net/wireless/ath/ath9k/xmit.c
   2 +++ b/drivers/net/wireless/ath/ath9k/xmit.c
   3 @@ -121,13 +121,24 @@ static void ath_txq_unlock_complete(stru
   4  {
   5         struct sk_buff_head q;
   6         struct sk_buff *skb;
   7 +       int qnum = txq->mac80211_qnum;
   8 +       bool wake = false;
   9
  10         __skb_queue_head_init(&q);
  11         skb_queue_splice_init(&txq->complete_q, &q);
  12 +
  13 +       if (txq->stopped && txq->pending_frames < ATH_MAX_QDEPTH) {
  14 +               txq->stopped = false;
  15 +               wake = true;
  16 +       }
  17 +
  18         spin_unlock_bh(&txq->axq_lock);
  19
  20         while ((skb = __skb_dequeue(&q)))
  21                 ieee80211_tx_status(sc->hw, skb);
  22 +
  23 +       if (wake)
  24 +               ieee80211_wake_queue(sc->hw, qnum);
  25  }
  26
  27  static void ath_tx_queue_tid(struct ath_txq *txq, struct ath_atx_tid *tid)
  28 @@ -2037,11 +2048,6 @@ static void ath_tx_complete(struct ath_s
  29         if (txq == sc->tx.txq_map[q]) {
  30                 if (WARN_ON(--txq->pending_frames < 0))
  31                         txq->pending_frames = 0;
  32 -
  33 -               if (txq->stopped && txq->pending_frames < ATH_MAX_QDEPTH) {
  34 -                       ieee80211_wake_queue(sc->hw, q);
  35 -                       txq->stopped = false;
  36 -               }
  37         }
  38
  39         __skb_queue_tail(&txq->complete_q, skb);