From c7f44fbda68a6b2d6ceb10e45c711750e779bace Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagig@mellanox.com>
Date: Sun, 18 May 2014 18:32:40 +0300
Subject: [PATCH] mlx5_core: Copy DIF fields only when input and output space
 values match

Some DIF implementations (SCSI initiator/target) may want to use different
input/output values for application tag and/or reference tag. So in
case memory/wire domain values don't match HW must not copy them.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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