diff options
author | Felix Fietkau <nbd@openwrt.org> | 2011-04-17 23:28:09 +0200 |
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committer | John W. Linville <linville@tuxdriver.com> | 2011-04-19 15:38:06 -0400 |
commit | 5519541d5a5f19893546883547e2f0f2e5934df7 (patch) | |
tree | ae581edfed4ce3382b22076cb03174756e004830 /drivers/net/wireless/iwlegacy/iwl-power.c | |
parent | 8e22ad323fb5b7cefb572bd8730e3abef95cdf90 (diff) |
ath9k: fix powersave frame filtering/buffering in AP mode
This patch fixes a long standing issue of pending packets in the queue being
sent (and retransmitted many times) to sleeping stations.
This was made worse by aggregation through driver-internal retransmitting
of A-MDPU subframes.
Previously the hardware tx filter was cleared unconditionally for every
single packet - with this patch it uses the IEEE80211_TX_CTL_CLEAR_PS_FILT
for unaggregated frames.
A sta_notify driver op is added to stop aggregation for stations when they
enter powersave mode. Subframes stay buffered inside the driver, to ensure
that the BlockAck window keeps a sane state.
Since the driver uses software aggregation, the clearing of the tx filter
needs to be handled by the driver instead of mac80211 for aggregated frames.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlegacy/iwl-power.c')
0 files changed, 0 insertions, 0 deletions