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ath9k: fix sampling frame handling wrt. aggregation, replace minstrel_ht performance fixes for better performance 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23558 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Felix Fietkau 2010-10-21 00:33:00 +00:00
parent 841b0baf14
commit 110205626f
5 changed files with 87 additions and 43 deletions
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22
package/mac80211/patches/560-ath9k_aggr_sampling_fix.patch Normal file
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@ -0,0 +1,22 @@
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -673,6 +673,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_
u16 aggr_limit = 0, al = 0, bpad = 0,
al_delta, h_baw = tid->baw_size / 2;
enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
+ struct ieee80211_tx_info *tx_info;
bf_first = list_first_entry(&tid->buf_q, struct ath_buf, list);
@@ -699,6 +700,11 @@ static enum ATH_AGGR_STATUS ath_tx_form_
break;
}
+ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
+ if (nframes && ((tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) ||
+ !(tx_info->control.rates[0].flags & IEEE80211_TX_RC_MCS)))
+ break;
+
/* do not exceed subframe limit */
if (nframes >= min((int)h_baw, ATH_AMPDU_SUBFRAME_DEFAULT)) {
status = ATH_AGGR_LIMITED;

32
package/mac80211/patches/560-minstrel_ht_performance.patch
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@ -1,32 +0,0 @@
--- a/net/mac80211/rc80211_minstrel_ht.h
+++ b/net/mac80211/rc80211_minstrel_ht.h
@@ -103,6 +103,7 @@ struct minstrel_ht_sta {
u8 sample_tries;
u8 sample_count;
u8 sample_slow;
+ u8 sample_retry;
/* current MCS group to be sampled */
u8 sample_group;
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -261,6 +261,7 @@ minstrel_ht_update_stats(struct minstrel
/* try to sample up to half of the availble rates during each interval */
mi->sample_count *= 4;
+ mi->sample_retry = mi->sample_count;
cur_prob = 0;
cur_prob_tp = 0;
@@ -572,6 +573,11 @@ minstrel_get_sample_rate(struct minstrel
return sample_idx;
next:
+ if (mi->sample_retry > 0) {
+ mi->sample_retry--;
+ mi->sample_tries++;
+ mi->sample_wait = 1;
+ }
minstrel_next_sample_idx(mi);
return -1;
}

11
package/mac80211/patches/561-minstrel_ht_sampling_interval.patch
View File

@ -1,11 +0,0 @@
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -408,7 +408,7 @@ minstrel_ht_tx_status(void *priv, struct
mi->ampdu_len += info->status.ampdu_len;
if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) {
- mi->sample_wait = 4 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
+ mi->sample_wait = 8 + MINSTREL_TRUNC(mi->avg_ampdu_len);
mi->sample_tries = 3;
mi->sample_count--;
}

13
package/mac80211/patches/561-minstrel_sample_retransmit.patch Normal file
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@ -0,0 +1,13 @@
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -506,7 +506,9 @@ minstrel_ht_set_rate(struct minstrel_pri
if (!mr->retry_updated)
minstrel_calc_retransmit(mp, mi, index);
- if (mr->probability < MINSTREL_FRAC(20, 100))
+ if (sample)
+ rate->count = 1;
+ else if (mr->probability < MINSTREL_FRAC(20, 100))
rate->count = 2;
else if (rtscts)
rate->count = mr->retry_count_rtscts;

52
package/mac80211/patches/562-minstrel_sample_performance.patch Normal file
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@ -0,0 +1,52 @@
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -407,8 +407,8 @@ minstrel_ht_tx_status(void *priv, struct
mi->ampdu_len += info->status.ampdu_len;
if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) {
- mi->sample_wait = 4 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
- mi->sample_tries = 3;
+ mi->sample_wait = 16 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
+ mi->sample_tries = 2;
mi->sample_count--;
}
@@ -564,7 +564,7 @@ minstrel_get_sample_rate(struct minstrel
*/
if (minstrel_get_duration(sample_idx) >
minstrel_get_duration(mi->max_tp_rate)) {
- if (mr->sample_skipped < 10)
+ if (mr->sample_skipped < 20)
goto next;
if (mi->sample_slow++ > 2)
@@ -588,6 +588,7 @@ minstrel_ht_get_rate(void *priv, struct
struct minstrel_ht_sta *mi = &msp->ht;
struct minstrel_priv *mp = priv;
int sample_idx;
+ bool sample = false;
if (rate_control_send_low(sta, priv_sta, txrc))
return;
@@ -598,10 +599,11 @@ minstrel_ht_get_rate(void *priv, struct
info->flags |= mi->tx_flags;
sample_idx = minstrel_get_sample_rate(mp, mi);
if (sample_idx >= 0) {
+ sample = true;
minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx,
txrc, true, false);
minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate,
- txrc, false, true);
+ txrc, false, false);
info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
} else {
minstrel_ht_set_rate(mp, mi, &ar[0], mi->max_tp_rate,
@@ -609,7 +611,7 @@ minstrel_ht_get_rate(void *priv, struct
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, true);
+ minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate, txrc, false, !sample);
ar[3].count = 0;
ar[3].idx = -1;