From: Felix Fietkau Date: Sun, 9 Mar 2014 10:02:54 +0000 (+0100) Subject: ath9k: fix ready time of the multicast buffer queue X-Git-Tag: v3.14.4~37 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0da23286e385c0385cf057884319d30f73205767;p=thirdparty%2Fkernel%2Fstable.git ath9k: fix ready time of the multicast buffer queue 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 Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 55897d508a76c..0526ddff977d5 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1698,7 +1698,7 @@ 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);