From: Ido Shamay <idos@mellanox.com>
Date: Thu, 2 Apr 2015 13:31:06 +0000 (+0300)
Subject: net/mlx4: Add RSS support for fragmented IP datagrams
X-Git-Tag: omap-for-v4.1/fixes-rc1~141^2~83^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=802f42a8d99254b8602bf65cc50e8333bf479f13;p=pandora-kernel.git

net/mlx4: Add RSS support for fragmented IP datagrams

Enable RSS support for fragmented IP packets, when device supports it.
Until now, fragmented IP packets were directed only to the default_qpn.
Since IP fragments (datagram) have no upper protocols (L3 IP packets),
hash is performed on 3-tuple - dst MAC, source IP and dest IP. The HW
makes sure that this holds for the 1st fragment too, so all fragments
go to the same QP.

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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