From: Sven Eckelmann <sven@narfation.org>
Date: Mon, 25 Jun 2012 05:15:22 +0000 (+0200)
Subject: ath9k: raise aggregation limit to 64k for HT IBSS
X-Git-Tag: v3.6-rc1~125^2~57^2~234
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=313eb87f1e2f93d83836de7f5c1947b75d7752c8;p=pandora-kernel.git

ath9k: raise aggregation limit to 64k for HT IBSS

mac80211 adds stations in HT IBSS as soon as a frame comes by,
even if the HT capabilities are not known yet (they are often
received later, e.g. in beacons). So far, ampdu factor/density
are only calculated when the station is initially added.

This patch changes this to update ampdu factor/density settings
when starting a blockack session.

Using this patch, we had performance boosts from 60 to 150 MBit/s
between two 2x2 Atheros devices in 5 GHz HT IBSS mode.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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