From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Mon, 2 Feb 2015 17:06:54 +0000 (+0100)
Subject: net: fs_enet: Implement NETIF_F_SG feature
X-Git-Tag: fixes-v4.0-rc1~150^2~76
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4fc9b87bae25e843989d022bed66dd009bdc5a71;p=pandora-kernel.git

net: fs_enet: Implement NETIF_F_SG feature

Freescale ethernet controllers have the capability to re-assemble fragmented
data into a single ethernet frame. This patch uses this capability and
implements NETIP_F_SG feature into the fs_enet ethernet driver.

On a MPC885, I get 53% performance improvement on a ftp transfer of a 15Mb file:
  * Without the patch : 2,8 Mbps
  * With the patch : 4,3 Mbps

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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