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| author | Felix Fietkau <nbd@openwrt.org> | 2012-03-13 11:19:19 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2012-03-13 11:19:19 +0000 |
| commit | dce6ee5830d79c038011ade15b970448a8215a3c (patch) | |
| tree | 5ca73a66f6d892b4670c7b5e3ba4ee341209d2a6 /package/mac80211 | |
| parent | b387cfd6e4a6b211061db56495d9b96570b9e634 (diff) | |
| download | upstream-dce6ee5830d79c038011ade15b970448a8215a3c.tar.gz upstream-dce6ee5830d79c038011ade15b970448a8215a3c.tar.bz2 upstream-dce6ee5830d79c038011ade15b970448a8215a3c.zip | |
ath9k: optimize waking tx queues, slightly improves performance under load
SVN-Revision: 30918
Diffstat (limited to 'package/mac80211')
| -rw-r--r-- | package/mac80211/patches/565-ath9k_optimize_queue_wake.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/package/mac80211/patches/565-ath9k_optimize_queue_wake.patch b/package/mac80211/patches/565-ath9k_optimize_queue_wake.patch new file mode 100644 index 0000000000..e04ffaafcb --- /dev/null +++ b/package/mac80211/patches/565-ath9k_optimize_queue_wake.patch @@ -0,0 +1,39 @@ +--- a/drivers/net/wireless/ath/ath9k/xmit.c ++++ b/drivers/net/wireless/ath/ath9k/xmit.c +@@ -121,13 +121,24 @@ static void ath_txq_unlock_complete(stru + { + struct sk_buff_head q; + struct sk_buff *skb; ++ int qnum = txq->mac80211_qnum; ++ bool wake = false; + + __skb_queue_head_init(&q); + skb_queue_splice_init(&txq->complete_q, &q); ++ ++ if (txq->stopped && txq->pending_frames < ATH_MAX_QDEPTH) { ++ txq->stopped = false; ++ wake = true; ++ } ++ + spin_unlock_bh(&txq->axq_lock); + + while ((skb = __skb_dequeue(&q))) + ieee80211_tx_status(sc->hw, skb); ++ ++ if (wake) ++ ieee80211_wake_queue(sc->hw, qnum); + } + + static void ath_tx_queue_tid(struct ath_txq *txq, struct ath_atx_tid *tid) +@@ -2037,11 +2048,6 @@ static void ath_tx_complete(struct ath_s + if (txq == sc->tx.txq_map[q]) { + if (WARN_ON(--txq->pending_frames < 0)) + txq->pending_frames = 0; +- +- if (txq->stopped && txq->pending_frames < ATH_MAX_QDEPTH) { +- ieee80211_wake_queue(sc->hw, q); +- txq->stopped = false; +- } + } + + __skb_queue_tail(&txq->complete_q, skb); |