| From | Luis Henriques <> | Subject | [PATCH 3.11 182/182] ath9k: fix ready time of the multicast buffer queue | Date | Thu, 24 Apr 2014 09:51:47 +0100 |
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3.11.10.9 -stable review patch. If anyone has any objections, please let me know.
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From: Felix Fietkau <nbd@openwrt.org>
commit 3b3e0efb5c72c4fc940af50b33626b8a78a907dc upstream.
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.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com> [ luis: backported to 3.11: adjusted context ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/net/wireless/ath/ath9k/xmit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index f0aaeb2..7542d0f 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1576,7 +1576,7 @@ int ath_cabq_update(struct ath_softc *sc) else if (sc->config.cabqReadytime > ATH9K_READY_TIME_HI_BOUND) sc->config.cabqReadytime = ATH9K_READY_TIME_HI_BOUND; - qi.tqi_readyTime = (cur_conf->beacon_interval * + qi.tqi_readyTime = (TU_TO_USEC(cur_conf->beacon_interval) * sc->config.cabqReadytime) / 100; ath_txq_update(sc, qnum, &qi); -- 1.9.1
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