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mt76: mt7915: clean up station stats polling and rate control update

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Queueing a per-sta work item from the tx free path can become very expensive
under load. This work is only supposed to pull rate control stats every
second and deal with rate control changes.

Additionally, the rate control update code was wrong, because it was
confusing bit masks and bit numbers in test_bit.

Fix this by introducing a dedicated device work item for rate control
updates, and by polling station stats from the phy mac work.
Stations requiring polling or rate control updates are added to lists
protected by dev->sta_poll_lock.

Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2020-08-10 11:00:17 +02:00
parent 1eb94624bb
commit 5e0c587b9a
5 changed files with 95 additions and 46 deletions
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mt7915/debugfs.c
+1 -1
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@@ -414,7 +414,7 @@ static int mt7915_sta_fixed_rate_set(void *data, u64 rate)
struct ieee80211_sta *sta = data;
struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
return mt7915_mcu_set_fixed_rate(msta->vif->dev, sta, rate);
return mt7915_mcu_set_fixed_rate(msta->vif->phy->dev, sta, rate);
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_fixed_rate, NULL,