From: Eli Cohen <eli@mellanox.com>
Date: Wed, 11 Sep 2013 13:35:22 +0000 (+0300)
Subject: IB/mlx5: Fix send work queue size calculation
X-Git-Tag: v3.12-rc6~20^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b125a54bfd7734a44253d2f2909a3c609768c1ec;p=pandora-kernel.git

IB/mlx5: Fix send work queue size calculation

1. Make sure wqe_cnt does not exceed the limit published by firmware.

2. There is no requirement that the number of outstanding work
   requests will be a power of two. Remove the ilog2 in the
   calculation of sq.max_post to fix that.

3. Add case for IB_QPT_XRC_TGT in sq_overhead and return 0 as XRC
   target QPs do not have a send queue.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---

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