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authorVasanthakumar Thiagarajan <vasanth@atheros.com>2011-02-19 01:13:42 -0800
committerJohn W. Linville <linville@tuxdriver.com>2011-02-21 15:39:56 -0500
commit69081624c7b2138b137738e307cb67e2dafd6e9b (patch)
tree9aff5e8a5f4140efc2578f2f8616db0796a9aa62 /drivers/net/wireless/ath/ath9k/xmit.c
parent0aec516ce4cfd44f48b3ae0c54bc2f1eab007173 (diff)
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ath9k: Implement op_flush()
When op_flush() is called with no drop (drop=false), the driver tries to tx as many frames as possible in about 100ms on every hw queue. During this time period frames from sw queue are also scheduled on to respective hw queue. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/xmit.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index bc614ac..e16136d 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2014,7 +2014,8 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
spin_lock_bh(&txq->axq_lock);
if (list_empty(&txq->axq_q)) {
txq->axq_link = NULL;
- if (sc->sc_flags & SC_OP_TXAGGR)
+ if (sc->sc_flags & SC_OP_TXAGGR &&
+ !txq->txq_flush_inprogress)
ath_txq_schedule(sc, txq);
spin_unlock_bh(&txq->axq_lock);
break;
@@ -2071,6 +2072,7 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
if (bf_is_ampdu_not_probing(bf))
txq->axq_ampdu_depth--;
+
spin_unlock_bh(&txq->axq_lock);
if (bf_held)
@@ -2094,7 +2096,7 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
spin_lock_bh(&txq->axq_lock);
- if (sc->sc_flags & SC_OP_TXAGGR)
+ if (sc->sc_flags & SC_OP_TXAGGR && !txq->txq_flush_inprogress)
ath_txq_schedule(sc, txq);
spin_unlock_bh(&txq->axq_lock);
}
@@ -2265,15 +2267,18 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
spin_lock_bh(&txq->axq_lock);
- if (!list_empty(&txq->txq_fifo_pending)) {
- INIT_LIST_HEAD(&bf_head);
- bf = list_first_entry(&txq->txq_fifo_pending,
- struct ath_buf, list);
- list_cut_position(&bf_head, &txq->txq_fifo_pending,
- &bf->bf_lastbf->list);
- ath_tx_txqaddbuf(sc, txq, &bf_head);
- } else if (sc->sc_flags & SC_OP_TXAGGR)
- ath_txq_schedule(sc, txq);
+ if (!txq->txq_flush_inprogress) {
+ if (!list_empty(&txq->txq_fifo_pending)) {
+ INIT_LIST_HEAD(&bf_head);
+ bf = list_first_entry(&txq->txq_fifo_pending,
+ struct ath_buf, list);
+ list_cut_position(&bf_head,
+ &txq->txq_fifo_pending,
+ &bf->bf_lastbf->list);
+ ath_tx_txqaddbuf(sc, txq, &bf_head);
+ } else if (sc->sc_flags & SC_OP_TXAGGR)
+ ath_txq_schedule(sc, txq);
+ }
spin_unlock_bh(&txq->axq_lock);
}
}