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mac80211: increase delay between aggregation session negotiation attempts - improves interop with intel clients

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26444 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2011-04-03 17:34:55 +00:00
parent 80fbca446e
commit 98a6131a74
1 changed files with 49 additions and 0 deletions
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49
package/mac80211/patches/542-mac80211_minstrel_ht_aggr_delay.patch Normal file
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@ -0,0 +1,49 @@
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -355,10 +355,12 @@ minstrel_downgrade_rate(struct minstrel_
}
static void
-minstrel_aggr_check(struct minstrel_priv *mp, struct ieee80211_sta *pubsta, struct sk_buff *skb)
+minstrel_aggr_check(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
+ struct ieee80211_sta *pubsta, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
+ unsigned long t1, t2;
u16 tid;
if (unlikely(!ieee80211_is_data_qos(hdr->frame_control)))
@@ -374,6 +376,12 @@ minstrel_aggr_check(struct minstrel_priv
if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
return;
+ t1 = mi->last_aggr_start_time[tid];
+ t2 = t1 + msecs_to_jiffies(5000);
+ if (unlikely(time_in_range(jiffies, t1, t2)))
+ return;
+
+ mi->last_aggr_start_time[tid] = jiffies;
ieee80211_start_tx_ba_session(pubsta, tid, 5000);
}
@@ -452,7 +460,7 @@ minstrel_ht_tx_status(void *priv, struct
if (time_after(jiffies, mi->stats_update + (mp->update_interval / 2 * HZ) / 1000)) {
minstrel_ht_update_stats(mp, mi);
- minstrel_aggr_check(mp, sta, skb);
+ minstrel_aggr_check(mp, mi, sta, skb);
}
}
--- a/net/mac80211/rc80211_minstrel_ht.h
+++ b/net/mac80211/rc80211_minstrel_ht.h
@@ -109,6 +109,8 @@ struct minstrel_ht_sta {
/* MCS rate group info and statistics */
struct minstrel_mcs_group_data groups[MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS];
+
+ unsigned long last_aggr_start_time[IEEE80211_QOS_CTL_TID_MASK + 1];
};
struct minstrel_ht_sta_priv {