mirror of https://github.com/hak5/openwrt.git
ath9k: fix a few remaining issues in the xmit queue cleanup patch - reduces packet loss under load
SVN-Revision: 23856lede-17.01
Felix Fietkau
parent
bf274946af
commit
635ec6e7d9
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@ -309,7 +309,15 @@
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/***********/
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/* TX, DMA */
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/***********/
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@@ -1747,6 +1734,7 @@ int ath_tx_start(struct ieee80211_hw *hw
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@@ -1708,6 +1695,7 @@ static void ath_tx_start_dma(struct ath_
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goto tx_done;
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}
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+ WARN_ON(tid->ac->txq != txctl->txq);
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if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
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/*
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* Try aggregation if it's a unicast data frame
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@@ -1747,6 +1735,7 @@ int ath_tx_start(struct ieee80211_hw *hw
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return -1;
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}
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@ -317,7 +325,7 @@
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r = ath_tx_setup_buffer(hw, bf, skb, txctl);
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if (unlikely(r)) {
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ath_print(common, ATH_DBG_FATAL, "TX mem alloc failure\n");
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@@ -1756,8 +1744,9 @@ int ath_tx_start(struct ieee80211_hw *hw
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@@ -1756,8 +1745,9 @@ int ath_tx_start(struct ieee80211_hw *hw
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* we will at least have to run TX completionon one buffer
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* on the queue */
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spin_lock_bh(&txq->axq_lock);
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@ -329,7 +337,7 @@
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txq->stopped = 1;
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}
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spin_unlock_bh(&txq->axq_lock);
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@@ -1767,13 +1756,10 @@ int ath_tx_start(struct ieee80211_hw *hw
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@@ -1767,13 +1757,10 @@ int ath_tx_start(struct ieee80211_hw *hw
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return r;
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}
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@ -346,34 +354,46 @@
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txq->stopped = 1;
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}
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spin_unlock_bh(&txq->axq_lock);
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@@ -1887,12 +1873,12 @@ static void ath_tx_complete(struct ath_s
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if (unlikely(tx_info->pad[0] & ATH_TX_INFO_FRAME_TYPE_INTERNAL))
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@@ -1841,7 +1828,8 @@ exit:
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/*****************/
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static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
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- struct ath_wiphy *aphy, int tx_flags)
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+ struct ath_wiphy *aphy, int tx_flags,
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+ struct ath_txq *txq)
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{
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struct ieee80211_hw *hw = sc->hw;
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struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
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@@ -1888,11 +1876,12 @@ static void ath_tx_complete(struct ath_s
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ath9k_tx_status(hw, skb);
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else {
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- q = skb_get_queue_mapping(skb);
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q = skb_get_queue_mapping(skb);
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- if (q >= 4)
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- q = 0;
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+ struct ath_txq *txq;
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-
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- if (--sc->tx.pending_frames[q] < 0)
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- sc->tx.pending_frames[q] = 0;
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+ q = skb_get_queue_mapping(skb);
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+ txq = sc->tx.txq_map[q];
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+ if (--txq->pending_frames < 0)
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+ if (txq == sc->tx.txq_map[q]) {
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+ spin_lock_bh(&txq->axq_lock);
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+ if (WARN_ON(--txq->pending_frames < 0))
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+ txq->pending_frames = 0;
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+ spin_unlock_bh(&txq->axq_lock);
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+ }
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ieee80211_tx_status(hw, skb);
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}
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@@ -1927,7 +1913,7 @@ static void ath_tx_complete_buf(struct a
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@@ -1927,8 +1916,8 @@ static void ath_tx_complete_buf(struct a
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else
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complete(&sc->paprd_complete);
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} else {
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- ath_debug_stat_tx(sc, txq, bf, ts);
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- ath_tx_complete(sc, skb, bf->aphy, tx_flags);
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+ ath_debug_stat_tx(sc, bf, ts);
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ath_tx_complete(sc, skb, bf->aphy, tx_flags);
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+ ath_tx_complete(sc, skb, bf->aphy, tx_flags, txq);
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}
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/* At this point, skb (bf->bf_mpdu) is consumed...make sure we don't
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@@ -2018,16 +2004,13 @@ static void ath_tx_rc_status(struct ath_
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* accidentally reference it later.
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@@ -2018,16 +2007,13 @@ static void ath_tx_rc_status(struct ath_
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tx_info->status.rates[tx_rateindex].count = ts->ts_longretry + 1;
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}
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@ -394,7 +414,7 @@
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if (ath_mac80211_start_queue(sc, qnum))
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txq->stopped = 0;
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}
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@@ -2044,6 +2027,7 @@ static void ath_tx_processq(struct ath_s
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@@ -2044,6 +2030,7 @@ static void ath_tx_processq(struct ath_s
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struct ath_tx_status ts;
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int txok;
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int status;
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@ -402,7 +422,7 @@
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ath_print(common, ATH_DBG_QUEUE, "tx queue %d (%x), link %p\n",
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txq->axq_qnum, ath9k_hw_gettxbuf(sc->sc_ah, txq->axq_qnum),
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@@ -2119,12 +2103,15 @@ static void ath_tx_processq(struct ath_s
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@@ -2119,12 +2106,15 @@ static void ath_tx_processq(struct ath_s
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ath_tx_rc_status(bf, &ts, txok ? 0 : 1, txok, true);
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}
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@ -419,7 +439,7 @@
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spin_lock_bh(&txq->axq_lock);
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if (sc->sc_flags & SC_OP_TXAGGR)
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@@ -2194,6 +2181,7 @@ void ath_tx_edma_tasklet(struct ath_soft
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@@ -2194,6 +2184,7 @@ void ath_tx_edma_tasklet(struct ath_soft
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struct list_head bf_head;
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int status;
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int txok;
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@ -427,7 +447,7 @@
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for (;;) {
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status = ath9k_hw_txprocdesc(ah, NULL, (void *)&txs);
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@@ -2237,13 +2225,16 @@ void ath_tx_edma_tasklet(struct ath_soft
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@@ -2237,13 +2228,16 @@ void ath_tx_edma_tasklet(struct ath_soft
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ath_tx_rc_status(bf, &txs, txok ? 0 : 1, txok, true);
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}
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@ -445,7 +465,7 @@
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spin_lock_bh(&txq->axq_lock);
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if (!list_empty(&txq->txq_fifo_pending)) {
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@@ -2375,7 +2366,7 @@ void ath_tx_node_init(struct ath_softc *
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@@ -2375,7 +2369,7 @@ void ath_tx_node_init(struct ath_softc *
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for (acno = 0, ac = &an->ac[acno];
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acno < WME_NUM_AC; acno++, ac++) {
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ac->sched = false;
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@ -454,7 +474,7 @@
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INIT_LIST_HEAD(&ac->tid_q);
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}
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}
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@@ -2385,17 +2376,13 @@ void ath_tx_node_cleanup(struct ath_soft
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@@ -2385,17 +2379,13 @@ void ath_tx_node_cleanup(struct ath_soft
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struct ath_atx_ac *ac;
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struct ath_atx_tid *tid;
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struct ath_txq *txq;
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