From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 26 Jan 2011 17:23:27 +0000 (+0100)
Subject: ath9k: use split rx buffers to get rid of order-1 skb allocations
X-Git-Tag: v2.6.39-rc1~468^2~417^2~45
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0d95521ea74735826cb2e28bebf6a07392c75bfa;p=pandora-kernel.git

ath9k: use split rx buffers to get rid of order-1 skb allocations

With this change, less CPU time is spent trying to look for consecutive
pages for rx skbs. This also reduces the socket memory required for IP/UDP
reassembly.
Only two buffers per frame are supported. Frames spanning more buffers
will be dropped, but the buffer size is enough to handle the required
AMSDU size.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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