From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 18 Sep 2013 12:43:22 +0000 (+0200)
Subject: ath10k: use msdu headroom to store txfrag
X-Git-Tag: v3.13-rc1~105^2~225^2~25^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1f8bb1518eee321d94477ca7bcbb153c47d43ba4;p=pandora-kernel.git

ath10k: use msdu headroom to store txfrag

Instead of allocating sk_buff for a mere 16-byte
tx fragment list buffer use headroom of the
original msdu sk_buff.

This decreases CPU cache pressure and improves
performance.

Measured improvement on AP135 is 560mbps ->
590mbps of UDP TX briding traffic.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---

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