diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/348-mac80211-minstrel_ht-reduce-the-need-to-sample-slowe.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/348-mac80211-minstrel_ht-reduce-the-need-to-sample-slowe.patch | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/package/kernel/mac80211/patches/subsys/348-mac80211-minstrel_ht-reduce-the-need-to-sample-slowe.patch b/package/kernel/mac80211/patches/subsys/348-mac80211-minstrel_ht-reduce-the-need-to-sample-slowe.patch deleted file mode 100644 index dc6f11e4b9..0000000000 --- a/package/kernel/mac80211/patches/subsys/348-mac80211-minstrel_ht-reduce-the-need-to-sample-slowe.patch +++ /dev/null @@ -1,102 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Date: Fri, 22 Jan 2021 19:24:59 +0100 -Subject: [PATCH] mac80211: minstrel_ht: reduce the need to sample slower - rates - -In order to more gracefully be able to fall back to lower rates without too -much throughput fluctuations, initialize all untested rates below tested ones -to the maximum probabilty of higher rates. -Usually this leads to untested lower rates getting initialized with a -probability value of 100%, making them better candidates for fallback without -having to rely on random probing - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - ---- a/net/mac80211/rc80211_minstrel_ht.c -+++ b/net/mac80211/rc80211_minstrel_ht.c -@@ -791,14 +791,11 @@ minstrel_ht_calc_rate_stats(struct minst - unsigned int cur_prob; - - if (unlikely(mrs->attempts > 0)) { -- mrs->sample_skipped = 0; - cur_prob = MINSTREL_FRAC(mrs->success, mrs->attempts); - minstrel_filter_avg_add(&mrs->prob_avg, - &mrs->prob_avg_1, cur_prob); - mrs->att_hist += mrs->attempts; - mrs->succ_hist += mrs->success; -- } else { -- mrs->sample_skipped++; - } - - mrs->last_success = mrs->success; -@@ -851,7 +848,6 @@ minstrel_ht_update_stats(struct minstrel - mi->ampdu_packets = 0; - } - -- mi->sample_slow = 0; - mi->sample_count = 0; - - if (mi->supported[MINSTREL_CCK_GROUP]) -@@ -882,6 +878,7 @@ minstrel_ht_update_stats(struct minstrel - /* Find best rate sets within all MCS groups*/ - for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) { - u16 *tp_rate = tmp_mcs_tp_rate; -+ u16 last_prob = 0; - - mg = &mi->groups[group]; - if (!mi->supported[group]) -@@ -896,7 +893,7 @@ minstrel_ht_update_stats(struct minstrel - if (group == MINSTREL_CCK_GROUP && ht_supported) - tp_rate = tmp_legacy_tp_rate; - -- for (i = 0; i < MCS_GROUP_RATES; i++) { -+ for (i = MCS_GROUP_RATES - 1; i >= 0; i--) { - if (!(mi->supported[group] & BIT(i))) - continue; - -@@ -905,6 +902,11 @@ minstrel_ht_update_stats(struct minstrel - mrs = &mg->rates[i]; - mrs->retry_updated = false; - minstrel_ht_calc_rate_stats(mp, mrs); -+ -+ if (mrs->att_hist) -+ last_prob = max(last_prob, mrs->prob_avg); -+ else -+ mrs->prob_avg = max(last_prob, mrs->prob_avg); - cur_prob = mrs->prob_avg; - - if (minstrel_ht_get_tp_avg(mi, group, i, cur_prob) == 0) -@@ -1469,13 +1471,9 @@ minstrel_get_sample_rate(struct minstrel - if (sample_dur >= minstrel_get_duration(tp_rate2) && - (cur_max_tp_streams - 1 < - minstrel_mcs_groups[sample_group].streams || -- sample_dur >= minstrel_get_duration(mi->max_prob_rate))) { -- if (mrs->sample_skipped < 20) -+ sample_dur >= minstrel_get_duration(mi->max_prob_rate))) - return -1; - -- if (mi->sample_slow++ > 2) -- return -1; -- } - mi->sample_tries--; - - return sample_idx; ---- a/net/mac80211/rc80211_minstrel_ht.h -+++ b/net/mac80211/rc80211_minstrel_ht.h -@@ -123,7 +123,6 @@ struct minstrel_rate_stats { - u8 retry_count; - u8 retry_count_rtscts; - -- u8 sample_skipped; - bool retry_updated; - }; - -@@ -179,7 +178,6 @@ struct minstrel_ht_sta { - u8 sample_wait; - u8 sample_tries; - u8 sample_count; -- u8 sample_slow; - - enum minstrel_sample_mode sample_mode; - u16 sample_rate; |