From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 9 Mar 2014 10:02:54 +0000 (+0100)
Subject: ath9k: fix ready time of the multicast buffer queue
X-Git-Tag: v3.2.58~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7bbda740718580d49fb5a7ccd950316d58970f7;p=pandora-kernel.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 <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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