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mac80211: fix a few more minstrel_ht bugs (thx to Christian Lamparter)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20040 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2010-03-07 18:35:39 +00:00
parent bcd6a465a2
commit ece5bacf60
1 changed files with 8 additions and 6 deletions
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14
package/mac80211/patches/560-minstrel_ht.patch
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@ -68,7 +68,7 @@
--- /dev/null
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -0,0 +1,807 @@
@@ -0,0 +1,809 @@
+/*
+ * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
+ *
@ -479,13 +479,15 @@
+ * downgrade to a lower number of streams if necessary.
+ */
+ rate = minstrel_get_ratestats(mi, mi->max_tp_rate);
+ if (MINSTREL_FRAC(rate->success, rate->attempts) <
+ MINSTREL_FRAC(20, 100) && rate->attempts > 30)
+ if (rate->attempts > 30 &&
+ MINSTREL_FRAC(rate->success, rate->attempts) <
+ MINSTREL_FRAC(20, 100))
+ minstrel_downgrade_rate(mi, &mi->max_tp_rate, true);
+
+ rate2 = minstrel_get_ratestats(mi, mi->max_tp_rate2);
+ if (MINSTREL_FRAC(rate->success, rate->attempts) <
+ MINSTREL_FRAC(20, 100) && rate->attempts > 30)
+ if (rate->attempts > 30 &&
+ MINSTREL_FRAC(rate->success, rate->attempts) <
+ MINSTREL_FRAC(20, 100))
+ minstrel_downgrade_rate(mi, &mi->max_tp_rate2, false);
+
+ if (time_after(jiffies, mi->stats_update + (mp->update_interval / 2 * HZ) / 1000))
@ -1062,7 +1064,7 @@
+ struct minstrel_rate_stats *mr = &mi->groups[i].rates[j];
+ int idx = i * MCS_GROUP_RATES + j;
+
+ if (!mi->groups[i].supported & BIT(j))
+ if (!(mi->groups[i].supported & BIT(j)))
+ continue;
+
+ p += sprintf(p, "HT%c0/%cGI ", htmode, gimode);