Commit a0ca796c authored by Felix Fietkau's avatar Felix Fietkau Committed by Johannes Berg

mac80211/minstrel_ht: do not sample actively used rates

max_tp_rate2 and max_prob_rate tend to get used occasionally during
retransmission, which is more useful for the statistics than probing
with individual probe packets.
Signed-off-by: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent bc96f242
......@@ -648,10 +648,13 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
/*
* Sampling might add some overhead (RTS, no aggregation)
* to the frame. Hence, don't use sampling for the currently
* used max TP rate.
* used rates.
*/
if (sample_idx == mi->max_tp_rate)
if (sample_idx == mi->max_tp_rate ||
sample_idx == mi->max_tp_rate2 ||
sample_idx == mi->max_prob_rate)
return -1;
/*
* Do not sample if the probability is already higher than 95%
* to avoid wasting airtime.
......
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