From: Matan Barak <matanb@mellanox.com>
Date: Thu, 7 Nov 2013 13:25:16 +0000 (+0200)
Subject: IB/mlx4: Add mechanism to support flow steering over IB links
X-Git-Tag: v3.14-rc1~103^2~1^3~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a37a1a428431d3e7e9f53530b5c56ff7867bd487;p=pandora-kernel.git

IB/mlx4: Add mechanism to support flow steering over IB links

The mlx4 device requires adding IB flow spec to rules that apply over
infiniband link layer.  This patch adds a mechanism to add such a rule.

If higher levels e.g. IP/UDP/TCP flow specs are provided, the device
requires us to add an empty wild-carded IB rule. Furthermore, the device
requires the QPN to be put in the rule.

Add here specific parsing support for IB empty rules and the ability
to self-generate missing specs based on existing ones.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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