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| author | Felix Fietkau <nbd@openwrt.org> | 2015-06-02 10:38:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-03 09:28:58 -0700 |
| commit | f3a16a0597a773deb7ee578c3453e62cc1f9e222 (patch) | |
| tree | 886e43648abfa0ca0e0abeaf0edfcdc2543d978b | |
| parent | b5c06428d38a0d74d90901d2c3fcf8ad29292216 (diff) | |
| download | lwn-f3a16a0597a773deb7ee578c3453e62cc1f9e222.tar.gz lwn-f3a16a0597a773deb7ee578c3453e62cc1f9e222.zip | |
ath9k: fix DMA stop sequence for AR9003+
commit 300f77c08ded96d33f492aaa02549103852f0c12 upstream.
AR93xx and newer needs to stop rx before tx to avoid getting the DMA
engine or MAC into a stuck state.
This should reduce/fix the occurence of "Failed to stop Tx DMA" logspam.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index b0badef71ce7..d5f2fbf62d72 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -216,11 +216,13 @@ static bool ath_prepare_reset(struct ath_softc *sc) ath_stop_ani(sc); ath9k_hw_disable_interrupts(ah); - if (!ath_drain_all_txq(sc)) - ret = false; - - if (!ath_stoprecv(sc)) - ret = false; + if (AR_SREV_9300_20_OR_LATER(ah)) { + ret &= ath_stoprecv(sc); + ret &= ath_drain_all_txq(sc); + } else { + ret &= ath_drain_all_txq(sc); + ret &= ath_stoprecv(sc); + } return ret; } |