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| author | Daniel Halperin <dhalperi@cs.washington.edu> | 2011-03-09 03:10:18 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-03-09 16:10:58 -0500 |
| commit | 8d5eab5aa676378b4c9daa62d10d08a0bca04677 (patch) | |
| tree | 6d149cbd7c714486cc87616357349cc332fec712 | |
| parent | 23ffaa89df16e55578318cfd852f23dcb37bf37b (diff) | |
| download | linux-8d5eab5aa676378b4c9daa62d10d08a0bca04677.tar.bz2 | |
mac80211: update minstrel_ht sample rate when probe is set
Waiting until the status is received can cause the same rate to be
probed multiple times consecutively.
Cc: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | net/mac80211/rc80211_minstrel_ht.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index 775cf155e94b..bce14fbfc3b6 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -415,10 +415,8 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband, mi->sample_count--; } - if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) { + if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) mi->sample_packets += info->status.ampdu_len; - minstrel_next_sample_idx(mi); - } for (i = 0; !last; i++) { last = (i == IEEE80211_TX_MAX_RATES - 1) || @@ -551,13 +549,14 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) sample_idx = sample_table[mg->column][mg->index]; mr = &mg->rates[sample_idx]; sample_idx += mi->sample_group * MCS_GROUP_RATES; + minstrel_next_sample_idx(mi); /* * When not using MRR, do not sample if the probability is already * higher than 95% to avoid wasting airtime */ if (!mp->has_mrr && (mr->probability > MINSTREL_FRAC(95, 100))) - goto next; + return -1; /* * Make sure that lower rates get sampled only occasionally, @@ -566,17 +565,13 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) if (minstrel_get_duration(sample_idx) > minstrel_get_duration(mi->max_tp_rate)) { if (mr->sample_skipped < 20) - goto next; + return -1; if (mi->sample_slow++ > 2) - goto next; + return -1; } return sample_idx; - -next: - minstrel_next_sample_idx(mi); - return -1; } static void |