package/madwifi/patches/396-napi_ff_fix.patch

   1 --- a/ath/if_ath.c
   2 +++ b/ath/if_ath.c
   3 @@ -6733,10 +6733,10 @@ ath_rx_poll(struct net_device *dev, int
   4  #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
   5         struct ath_softc *sc = container_of(napi, struct ath_softc, sc_napi);
   6         struct net_device *dev = sc->sc_dev;
   7 -       u_int rx_limit = budget;
   8 +       int rx_limit = budget;
   9  #else
  10         struct ath_softc *sc = dev->priv;
  11 -       u_int rx_limit = min(dev->quota, *budget);
  12 +       int rx_limit = min(dev->quota, *budget);
  13  #endif
  14         struct ath_buf *bf;
  15         struct ieee80211com *ic = &sc->sc_ic;
  16 @@ -6779,13 +6779,15 @@ process_rx_again:
  17                         break;
  18                 }
  19
  20 -               if (rx_limit-- < 2) {
  21 +               processed += ic->ic_recv;
  22 +               rx_limit -= ic->ic_recv;
  23 +               ic->ic_recv = 0;
  24 +
  25 +               /* keep a reserve for napi */
  26 +               if (rx_limit < 4) {
  27                         early_stop = 1;
  28                         break;
  29                 }
  30 -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
  31 -               processed++;
  32 -#endif
  33
  34                 skb = bf->bf_skb;
  35                 if (skb == NULL) {
  36 @@ -7069,8 +7071,8 @@ rx_next:
  37                 if (sc->sc_isr & HAL_INT_RX) {
  38                         u_int64_t hw_tsf = ath_hal_gettsf64(ah);
  39                         sc->sc_isr &= ~HAL_INT_RX;
  40 -                       local_irq_restore(flags);
  41                         ath_uapsd_processtriggers(sc, hw_tsf);
  42 +                       local_irq_restore(flags);
  43                         goto process_rx_again;
  44                 }
  45                 local_irq_restore(flags);
  46 --- a/net80211/ieee80211_input.c
  47 +++ b/net80211/ieee80211_input.c
  48 @@ -1203,6 +1203,7 @@ ieee80211_deliver_data(struct ieee80211_
  49                 }
  50         }
  51
  52 +       vap->iv_ic->ic_recv++;
  53         if (skb != NULL) {
  54                 skb->dev = dev;
  55
  56 --- a/net80211/ieee80211_var.h
  57 +++ b/net80211/ieee80211_var.h
  58 @@ -323,6 +323,7 @@ struct ieee80211com {
  59         struct ifmedia ic_media;                /* interface media config */
  60         u_int8_t ic_myaddr[IEEE80211_ADDR_LEN];
  61         struct timer_list ic_inact;             /* mgmt/inactivity timer */
  62 +       u_int ic_recv;                                  /* frame received counter */
  63
  64         unsigned int ic_subifs;
  65         u_int32_t ic_flags;                     /* state flags */