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authorFelix Fietkau <nbd@openwrt.org>2010-06-01 21:33:13 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-06-03 14:14:41 -0400
commit84642d6bdde9164b7905fba03c0691a806788e0c (patch)
treec478140600fc9f0406c3911ce1421ffa3681a4f5 /net/mac80211/debugfs.c
parent764580f577a46adce6ad6717a9b34aa8e3a09159 (diff)
downloadlinux-84642d6bdde9164b7905fba03c0691a806788e0c.tar.bz2
ath9k: fix queue stop/start based on the number of pending frames
Because there is a limited number of tx buffers available, once the queue has been filled to a certain point, ath9k needs to stop accepting new frames from mac80211. In order to prevent a full WMM queue from stopping another queue with fewer frames, this patch limits the number of queued frames to a quarter of the total available tx buffers, minus some reserved frames to be used for other purposes (e.g. beacons). Because tx buffers are reserved for frames when they're staged in software queues as well, the actual queue depth cannot be used for this, so this patch stores a reference to the tx queue in the ath_buf struct and keeps track of the total number of pending frames. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/debugfs.c')
0 files changed, 0 insertions, 0 deletions