diff options
Diffstat (limited to 'package/kernel/mac80211/patches/328-mac80211-minstrel-reduce-minstrel_mcs_groups-size.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/328-mac80211-minstrel-reduce-minstrel_mcs_groups-size.patch | 94 |
1 files changed, 76 insertions, 18 deletions
diff --git a/package/kernel/mac80211/patches/328-mac80211-minstrel-reduce-minstrel_mcs_groups-size.patch b/package/kernel/mac80211/patches/328-mac80211-minstrel-reduce-minstrel_mcs_groups-size.patch index d62c362..fa51f1b 100644 --- a/package/kernel/mac80211/patches/328-mac80211-minstrel-reduce-minstrel_mcs_groups-size.patch +++ b/package/kernel/mac80211/patches/328-mac80211-minstrel-reduce-minstrel_mcs_groups-size.patch @@ -218,21 +218,53 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> /* * For the throughput calculation, limit the probability value to 90% to -@@ -780,7 +784,7 @@ minstrel_calc_retransmit(struct minstrel +@@ -755,12 +759,19 @@ minstrel_ht_tx_status(void *priv, struct + minstrel_ht_update_rates(mp, mi); + } + ++static inline int ++minstrel_get_duration(int index) ++{ ++ const struct mcs_group *group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; ++ unsigned int duration = group->duration[index % MCS_GROUP_RATES]; ++ return duration << group->shift; ++} ++ + static void + minstrel_calc_retransmit(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, + int index) + { + struct minstrel_rate_stats *mrs; +- const struct mcs_group *group; + unsigned int tx_time, tx_time_rtscts, tx_time_data; + unsigned int cw = mp->cw_min; + unsigned int ctime = 0; +@@ -779,8 +790,7 @@ minstrel_calc_retransmit(struct minstrel + mrs->retry_count_rtscts = 2; mrs->retry_updated = true; - group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; +- group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; - tx_time_data = group->duration[index % MCS_GROUP_RATES] * ampdu_len / 1000; -+ tx_time_data = (group->duration[index % MCS_GROUP_RATES] << group->shift) * ampdu_len / 1000; ++ tx_time_data = minstrel_get_duration(index) * ampdu_len / 1000; /* Contention time for first 2 tries */ ctime = (t_slot * cw) >> 1; -@@ -880,14 +884,14 @@ minstrel_ht_get_max_amsdu_len(struct min +@@ -874,20 +884,24 @@ minstrel_ht_get_max_amsdu_len(struct min + int group = mi->max_prob_rate / MCS_GROUP_RATES; + const struct mcs_group *g = &minstrel_mcs_groups[group]; + int rate = mi->max_prob_rate % MCS_GROUP_RATES; ++ unsigned int duration; + + /* Disable A-MSDU if max_prob_rate is bad */ + if (mi->groups[group].rates[rate].prob_ewma < MINSTREL_FRAC(50, 100)) return 1; ++ duration = g->duration[rate]; ++ duration <<= g->shift; ++ /* If the rate is slower than single-stream MCS1, make A-MSDU limit small */ - if (g->duration[rate] > MCS_DURATION(1, 0, 52)) -+ if ((g->duration[rate] << g->shift) > MCS_DURATION(1, 0, 52)) ++ if (duration > MCS_DURATION(1, 0, 52)) return 500; /* @@ -240,28 +272,33 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> * data packet size */ - if (g->duration[rate] > MCS_DURATION(1, 0, 104)) -+ if ((g->duration[rate] << g->shift) > MCS_DURATION(1, 0, 104)) ++ if (duration > MCS_DURATION(1, 0, 104)) return 1600; /* -@@ -895,7 +899,7 @@ minstrel_ht_get_max_amsdu_len(struct min +@@ -895,7 +909,7 @@ minstrel_ht_get_max_amsdu_len(struct min * rate success probability is less than 75%, limit A-MSDU to twice the usual * data packet size */ - if (g->duration[rate] > MCS_DURATION(1, 0, 260) || -+ if ((g->duration[rate] << g->shift) > MCS_DURATION(1, 0, 260) || ++ if (duration > MCS_DURATION(1, 0, 260) || (minstrel_ht_get_prob_ewma(mi, mi->max_tp_rate[0]) < MINSTREL_FRAC(75, 100))) return 3200; -@@ -946,7 +950,7 @@ static inline int - minstrel_get_duration(int index) - { - const struct mcs_group *group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; -- return group->duration[index % MCS_GROUP_RATES]; -+ return group->duration[index % MCS_GROUP_RATES] << group->shift; +@@ -942,13 +956,6 @@ minstrel_ht_update_rates(struct minstrel + rate_control_set_rates(mp->hw, mi->sta, rates); } +-static inline int +-minstrel_get_duration(int index) +-{ +- const struct mcs_group *group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; +- return group->duration[index % MCS_GROUP_RATES]; +-} +- static int + minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) + { --- a/net/mac80211/rc80211_minstrel_ht.h +++ b/net/mac80211/rc80211_minstrel_ht.h @@ -33,9 +33,10 @@ @@ -280,21 +317,42 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> extern const struct mcs_group minstrel_mcs_groups[]; --- a/net/mac80211/rc80211_minstrel_ht_debugfs.c +++ b/net/mac80211/rc80211_minstrel_ht_debugfs.c -@@ -95,7 +95,7 @@ minstrel_ht_stats_dump(struct minstrel_h +@@ -58,6 +58,7 @@ minstrel_ht_stats_dump(struct minstrel_h + static const int bitrates[4] = { 10, 20, 55, 110 }; + int idx = i * MCS_GROUP_RATES + j; + unsigned int prob_ewmsd; ++ unsigned int duration; + + if (!(mi->supported[i] & BIT(j))) + continue; +@@ -95,7 +96,9 @@ minstrel_ht_stats_dump(struct minstrel_h p += sprintf(p, " %3u ", idx); /* tx_time[rate(i)] in usec */ - tx_time = DIV_ROUND_CLOSEST(mg->duration[j], 1000); -+ tx_time = DIV_ROUND_CLOSEST(mg->duration[j] << mg->shift, 1000); ++ duration = mg->duration[j]; ++ duration <<= mg->shift; ++ tx_time = DIV_ROUND_CLOSEST(duration, 1000); p += sprintf(p, "%6u ", tx_time); tp_max = minstrel_ht_get_tp_avg(mi, i, j, MINSTREL_FRAC(100, 100)); -@@ -238,7 +238,7 @@ minstrel_ht_stats_csv_dump(struct minstr +@@ -204,6 +207,7 @@ minstrel_ht_stats_csv_dump(struct minstr + static const int bitrates[4] = { 10, 20, 55, 110 }; + int idx = i * MCS_GROUP_RATES + j; + unsigned int prob_ewmsd; ++ unsigned int duration; + + if (!(mi->supported[i] & BIT(j))) + continue; +@@ -238,7 +242,10 @@ minstrel_ht_stats_csv_dump(struct minstr } p += sprintf(p, "%u,", idx); - tx_time = DIV_ROUND_CLOSEST(mg->duration[j], 1000); -+ tx_time = DIV_ROUND_CLOSEST(mg->duration[j] << mg->shift, 1000); ++ ++ duration = mg->duration[j]; ++ duration <<= mg->shift; ++ tx_time = DIV_ROUND_CLOSEST(duration, 1000); p += sprintf(p, "%u,", tx_time); tp_max = minstrel_ht_get_tp_avg(mi, i, j, MINSTREL_FRAC(100, 100)); |