83dcdceda3a4fe9c98b03423e2ecea51fb1c5b6f
[openwrt.git] / package / kernel / mac80211 / patches / 557-ath9k_fix_tx_queue_accounting.patch
1 --- a/drivers/net/wireless/ath/ath9k/xmit.c
2 +++ b/drivers/net/wireless/ath/ath9k/xmit.c
3 @@ -146,6 +146,28 @@ static void ath_set_rates(struct ieee802
4                                ARRAY_SIZE(bf->rates));
5  }
6  
7 +static void ath_txq_skb_done(struct ath_softc *sc, struct ath_txq *txq,
8 +                            struct sk_buff *skb)
9 +{
10 +       int q;
11 +
12 +       q = skb_get_queue_mapping(skb);
13 +       if (txq == sc->tx.uapsdq)
14 +               txq = sc->tx.txq_map[q];
15 +
16 +       if (txq != sc->tx.txq_map[q])
17 +               return;
18 +
19 +       if (WARN_ON(--txq->pending_frames < 0))
20 +               txq->pending_frames = 0;
21 +
22 +       if (txq->stopped &&
23 +           txq->pending_frames < sc->tx.txq_max_pending[q]) {
24 +               ieee80211_wake_queue(sc->hw, q);
25 +               txq->stopped = false;
26 +       }
27 +}
28 +
29  static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
30  {
31         struct ath_txq *txq = tid->ac->txq;
32 @@ -167,6 +189,7 @@ static void ath_tx_flush_tid(struct ath_
33                 if (!bf) {
34                         bf = ath_tx_setup_buffer(sc, txq, tid, skb);
35                         if (!bf) {
36 +                               ath_txq_skb_done(sc, txq, skb);
37                                 ieee80211_free_txskb(sc->hw, skb);
38                                 continue;
39                         }
40 @@ -811,6 +834,7 @@ ath_tx_get_tid_subframe(struct ath_softc
41  
42                 if (!bf) {
43                         __skb_unlink(skb, &tid->buf_q);
44 +                       ath_txq_skb_done(sc, txq, skb);
45                         ieee80211_free_txskb(sc->hw, skb);
46                         continue;
47                 }
48 @@ -1824,6 +1848,7 @@ static void ath_tx_send_ampdu(struct ath
49  
50         bf = ath_tx_setup_buffer(sc, txq, tid, skb);
51         if (!bf) {
52 +               ath_txq_skb_done(sc, txq, skb);
53                 ieee80211_free_txskb(sc->hw, skb);
54                 return;
55         }
56 @@ -2090,6 +2115,7 @@ int ath_tx_start(struct ieee80211_hw *hw
57  
58         bf = ath_tx_setup_buffer(sc, txq, tid, skb);
59         if (!bf) {
60 +               ath_txq_skb_done(sc, txq, skb);
61                 if (txctl->paprd)
62                         dev_kfree_skb_any(skb);
63                 else
64 @@ -2189,7 +2215,7 @@ static void ath_tx_complete(struct ath_s
65         struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
66         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
67         struct ieee80211_hdr * hdr = (struct ieee80211_hdr *)skb->data;
68 -       int q, padpos, padsize;
69 +       int padpos, padsize;
70         unsigned long flags;
71  
72         ath_dbg(common, XMIT, "TX complete: skb: %p\n", skb);
73 @@ -2225,21 +2251,7 @@ static void ath_tx_complete(struct ath_s
74         spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
75  
76         __skb_queue_tail(&txq->complete_q, skb);
77 -
78 -       q = skb_get_queue_mapping(skb);
79 -       if (txq == sc->tx.uapsdq)
80 -               txq = sc->tx.txq_map[q];
81 -
82 -       if (txq == sc->tx.txq_map[q]) {
83 -               if (WARN_ON(--txq->pending_frames < 0))
84 -                       txq->pending_frames = 0;
85 -
86 -               if (txq->stopped &&
87 -                   txq->pending_frames < sc->tx.txq_max_pending[q]) {
88 -                       ieee80211_wake_queue(sc->hw, q);
89 -                       txq->stopped = false;
90 -               }
91 -       }
92 +       ath_txq_skb_done(sc, txq, skb);
93  }
94  
95  static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,