I bisected the problem I was having with ath9k STA configured for WPA
not being able to authenticate. I'm using nohwcrypt=1, which may
be why no one else sees it.
According to bisect, this is the first bad commit:
commit 5519541d5a5f19893546883547e2f0f2e5934df7
Author: Felix Fietkau <nbd@xxxxxxxxxxx>
Date: Sun Apr 17 23:28:09 2011 +0200
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@xxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
I'll be happy to test patches, it seems very easy to reproduce on
my setup.
Thanks,
Ben
--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc http://www.candelatech.com
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