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|
--- 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:
|
