package/mac80211/patches/520-mac80211_minstrel_ht_aggr_delay.patch

   1 --- a/net/mac80211/rc80211_minstrel_ht.c
   2 +++ b/net/mac80211/rc80211_minstrel_ht.c
   3 @@ -355,10 +355,12 @@ minstrel_downgrade_rate(struct minstrel_
   4  }
   5
   6  static void
   7 -minstrel_aggr_check(struct minstrel_priv *mp, struct ieee80211_sta *pubsta, struct sk_buff *skb)
   8 +minstrel_aggr_check(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
   9 +                   struct ieee80211_sta *pubsta, struct sk_buff *skb)
  10  {
  11         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
  12         struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
  13 +       unsigned long t1, t2;
  14         u16 tid;
  15
  16         if (unlikely(!ieee80211_is_data_qos(hdr->frame_control)))
  17 @@ -374,6 +376,12 @@ minstrel_aggr_check(struct minstrel_priv
  18         if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
  19                 return;
  20
  21 +       t1 = mi->last_aggr_start_time[tid];
  22 +       t2 = t1 + msecs_to_jiffies(5000);
  23 +       if (unlikely(time_in_range(jiffies, t1, t2)))
  24 +               return;
  25 +
  26 +       mi->last_aggr_start_time[tid] = jiffies;
  27         ieee80211_start_tx_ba_session(pubsta, tid, 5000);
  28  }
  29
  30 @@ -452,7 +460,7 @@ minstrel_ht_tx_status(void *priv, struct
  31
  32         if (time_after(jiffies, mi->stats_update + (mp->update_interval / 2 * HZ) / 1000)) {
  33                 minstrel_ht_update_stats(mp, mi);
  34 -               minstrel_aggr_check(mp, sta, skb);
  35 +               minstrel_aggr_check(mp, mi, sta, skb);
  36         }
  37  }
  38
  39 --- a/net/mac80211/rc80211_minstrel_ht.h
  40 +++ b/net/mac80211/rc80211_minstrel_ht.h
  41 @@ -109,6 +109,8 @@ struct minstrel_ht_sta {
  42
  43         /* MCS rate group info and statistics */
  44         struct minstrel_mcs_group_data groups[MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS];
  45 +
  46 +       unsigned long last_aggr_start_time[IEEE80211_QOS_CTL_TID_MASK + 1];
  47  };
  48
  49  struct minstrel_ht_sta_priv {