From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Thu, 24 May 2012 08:26:29 +0000 (+0000)
Subject: ixgbe: Add support for IPv6 and UDP to ixgbe_get_headlen
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~45^2~583^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a048b40e0f9502bc75d7f9904c5399a0a87fa479;p=pandora-kernel.git

ixgbe: Add support for IPv6 and UDP to ixgbe_get_headlen

This change adds support for IPv6 and UDP to ixgbe_get_headlen. The
advantage to this is that we can now handle ipv4/UDP, ipv6/TCP, and
ipv6/UDP with a single memcpy instead of having to do them in multiple
pskb_may_pull calls.

A quick bit of testing shows that we increase throughput for a single
session of netperf from 8800Mpbs to about 9300Mpbs in the case of ipv6/TCP.
As such overall ipv6 performance should improve with this change.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko  <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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