From 7702e788e77c175f5ddc8f792468b8af036a8146 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 15 Jul 2012 19:53:35 +0200 Subject: [PATCH] ath9k: make per-WMM-AC queue sizes configurable via debugfs Prepare for using different queue size defaults for each AC. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 + drivers/net/wireless/ath/ath9k/debug.c | 8 ++++++++ drivers/net/wireless/ath/ath9k/init.c | 1 + drivers/net/wireless/ath/ath9k/xmit.c | 6 ++++-- 4 files changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 54f0c9d0..db17ec4 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -297,6 +297,7 @@ struct ath_tx { struct ath_txq txq[ATH9K_NUM_TX_QUEUES]; struct ath_descdma txdma; struct ath_txq *txq_map[WME_NUM_AC]; + u32 txq_max_pending[WME_NUM_AC]; }; struct ath_rx_edma { diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 5c3192f..b9ea067 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -1556,6 +1556,14 @@ int ath9k_init_debug(struct ath_hw *ah) &fops_interrupt); debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_xmit); + debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, + &sc->tx.txq_max_pending[WME_AC_BK]); + debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, + &sc->tx.txq_max_pending[WME_AC_BE]); + debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, + &sc->tx.txq_max_pending[WME_AC_VI]); + debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, + &sc->tx.txq_max_pending[WME_AC_VO]); debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_stations); debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc, diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index af95d18..181977a 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -434,6 +434,7 @@ static int ath9k_init_queues(struct ath_softc *sc) for (i = 0; i < WME_NUM_AC; i++) { sc->tx.txq_map[i] = ath_txq_setup(sc, ATH9K_TX_QUEUE_DATA, i); sc->tx.txq_map[i]->mac80211_qnum = i; + sc->tx.txq_max_pending[i] = ATH_MAX_QDEPTH; } return 0; } diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index cafb4a0..571d773 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1988,7 +1988,8 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, ath_txq_lock(sc, txq); if (txq == sc->tx.txq_map[q] && - ++txq->pending_frames > ATH_MAX_QDEPTH && !txq->stopped) { + ++txq->pending_frames > sc->tx.txq_max_pending[q] && + !txq->stopped) { ieee80211_stop_queue(sc->hw, q); txq->stopped = true; } @@ -2047,7 +2048,8 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, if (WARN_ON(--txq->pending_frames < 0)) txq->pending_frames = 0; - if (txq->stopped && txq->pending_frames < ATH_MAX_QDEPTH) { + if (txq->stopped && + txq->pending_frames < sc->tx.txq_max_pending[q]) { ieee80211_wake_queue(sc->hw, q); txq->stopped = false; } -- 2.7.4