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authorFelix Fietkau <nbd@openwrt.org>2014-03-09 11:02:54 +0100
committerJohn W. Linville <linville@tuxdriver.com>2014-03-14 14:49:14 -0400
commit3b3e0efb5c72c4fc940af50b33626b8a78a907dc (patch)
tree140b316ad5a2edc56428f34eb62876f29125f8a2
parent6caefd1271910820db81d4c951a1fe2c9e16ee0b (diff)
downloadlwn-3b3e0efb5c72c4fc940af50b33626b8a78a907dc.tar.gz
lwn-3b3e0efb5c72c4fc940af50b33626b8a78a907dc.zip
ath9k: fix ready time of the multicast buffer queue
qi->tqi_readyTime is written directly to registers that expect microseconds as unit instead of TU. When setting the CABQ ready time, cur_conf->beacon_interval is in TU, so convert it to microseconds before passing it to ath9k_hw. This should hopefully fix some Tx DMA issues with buffered multicast frames in AP mode. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index fafacfed44ea..3e7966b4b61e 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1699,7 +1699,7 @@ int ath_cabq_update(struct ath_softc *sc)
ath9k_hw_get_txq_props(sc->sc_ah, qnum, &qi);
- qi.tqi_readyTime = (cur_conf->beacon_interval *
+ qi.tqi_readyTime = (TU_TO_USEC(cur_conf->beacon_interval) *
ATH_CABQ_READY_TIME) / 100;
ath_txq_update(sc, qnum, &qi);