diff options
Diffstat (limited to 'package/mac80211/patches/523-minstrel_ht_optimize.patch')
| -rw-r--r-- | package/mac80211/patches/523-minstrel_ht_optimize.patch | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/package/mac80211/patches/523-minstrel_ht_optimize.patch b/package/mac80211/patches/523-minstrel_ht_optimize.patch new file mode 100644 index 0000000000..8e804cae8b --- /dev/null +++ b/package/mac80211/patches/523-minstrel_ht_optimize.patch @@ -0,0 +1,167 @@ +--- a/net/mac80211/rc80211_minstrel_ht.h ++++ b/net/mac80211/rc80211_minstrel_ht.h +@@ -70,6 +70,8 @@ struct minstrel_mcs_group_data { + }; + + struct minstrel_ht_sta { ++ struct ieee80211_tx_rate tx_rates[3]; ++ + /* ampdu length (average, per sampling interval) */ + unsigned int ampdu_len; + unsigned int ampdu_packets; +--- a/net/mac80211/rc80211_minstrel_ht.c ++++ b/net/mac80211/rc80211_minstrel_ht.c +@@ -87,6 +87,10 @@ const struct mcs_group minstrel_mcs_grou + + static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES]; + ++static void ++minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, ++ struct ieee80211_tx_rate *rate, int index, ++ bool sample, bool rtscts); + /* + * Perform EWMA (Exponentially Weighted Moving Average) calculation + */ +@@ -174,6 +178,17 @@ minstrel_ht_calc_tp(struct minstrel_priv + mr->cur_tp = MINSTREL_TRUNC((1000000 / usecs) * mr->probability); + } + ++static void ++minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) ++{ ++ minstrel_ht_set_rate(mp, mi, &mi->tx_rates[0], mi->max_tp_rate, ++ false, false); ++ minstrel_ht_set_rate(mp, mi, &mi->tx_rates[1], mi->max_tp_rate2, ++ false, true); ++ minstrel_ht_set_rate(mp, mi, &mi->tx_rates[2], mi->max_prob_rate, ++ false, true); ++} ++ + /* + * Update rate statistics and select new primary rates + * +@@ -294,6 +309,7 @@ minstrel_ht_update_stats(struct minstrel + } + } + ++ minstrel_ht_update_rates(mp, mi); + mi->stats_update = jiffies; + } + +@@ -332,8 +348,8 @@ minstrel_next_sample_idx(struct minstrel + } + + static void +-minstrel_downgrade_rate(struct minstrel_ht_sta *mi, unsigned int *idx, +- bool primary) ++minstrel_downgrade_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, ++ unsigned int *idx, bool primary) + { + int group, orig_group; + +@@ -352,6 +368,7 @@ minstrel_downgrade_rate(struct minstrel_ + *idx = mi->groups[group].max_tp_rate; + else + *idx = mi->groups[group].max_tp_rate2; ++ minstrel_ht_update_rates(mp, mi); + break; + } + } +@@ -452,13 +469,13 @@ minstrel_ht_tx_status(void *priv, struct + if (rate->attempts > 30 && + MINSTREL_FRAC(rate->success, rate->attempts) < + MINSTREL_FRAC(20, 100)) +- minstrel_downgrade_rate(mi, &mi->max_tp_rate, true); ++ minstrel_downgrade_rate(mp, mi, &mi->max_tp_rate, true); + + rate2 = minstrel_get_ratestats(mi, mi->max_tp_rate2); + if (rate2->attempts > 30 && + MINSTREL_FRAC(rate2->success, rate2->attempts) < + MINSTREL_FRAC(20, 100)) +- minstrel_downgrade_rate(mi, &mi->max_tp_rate2, false); ++ minstrel_downgrade_rate(mp, mi, &mi->max_tp_rate2, false); + + if (time_after(jiffies, mi->stats_update + (mp->update_interval / 2 * HZ) / 1000)) { + minstrel_ht_update_stats(mp, mi); +@@ -523,7 +540,6 @@ minstrel_calc_retransmit(struct minstrel + static void + minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, + struct ieee80211_tx_rate *rate, int index, +- struct ieee80211_tx_rate_control *txrc, + bool sample, bool rtscts) + { + const struct mcs_group *group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; +@@ -611,6 +627,7 @@ minstrel_ht_get_rate(void *priv, struct + struct minstrel_priv *mp = priv; + int sample_idx; + bool sample = false; ++ int last = 0; + + if (rate_control_send_low(sta, priv_sta, txrc)) + return; +@@ -636,11 +653,10 @@ minstrel_ht_get_rate(void *priv, struct + if (sample_idx >= 0) { + sample = true; + minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx, +- txrc, true, false); ++ true, false); + info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; + } else { +- minstrel_ht_set_rate(mp, mi, &ar[0], mi->max_tp_rate, +- txrc, false, false); ++ ar[0] = mi->tx_rates[0]; + } + + if (mp->hw->max_rates >= 3) { +@@ -650,33 +666,27 @@ minstrel_ht_get_rate(void *priv, struct + * max_tp_rate -> max_tp_rate2 -> max_prob_rate by default. + */ + if (sample_idx >= 0) +- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate, +- txrc, false, false); ++ ar[1] = mi->tx_rates[0]; + else +- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate2, +- txrc, false, true); +- +- minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate, +- txrc, false, !sample); ++ ar[1] = mi->tx_rates[1]; + +- ar[3].count = 0; +- ar[3].idx = -1; ++ ar[2] = mi->tx_rates[2]; ++ last = 3; + } else if (mp->hw->max_rates == 2) { + /* + * Only 2 tx rates supported, use + * sample_rate -> max_prob_rate for sampling and + * max_tp_rate -> max_prob_rate by default. + */ +- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_prob_rate, +- txrc, false, !sample); +- +- ar[2].count = 0; +- ar[2].idx = -1; ++ ar[1] = mi->tx_rates[2]; ++ last = 2; + } else { + /* Not using MRR, only use the first rate */ +- ar[1].count = 0; +- ar[1].idx = -1; ++ last = 1; ++ + } ++ ar[last].count = 0; ++ ar[last].idx = -1; + + mi->total_packets++; + +@@ -768,6 +778,7 @@ minstrel_ht_update_caps(void *priv, stru + if (!n_supported) + goto use_legacy; + ++ minstrel_ht_update_rates(mp, mi); + return; + + use_legacy: |