On Mon, 2017-06-12 at 10:36 +0300, Leon Romanovsky wrote:

From: Majd Dibbiny <redacted>

When we have a miss in one order of the mkey cache, we try to get
an mkey from a higher order.

We still need to check that the higher order can be used with UMR
before using it. Otherwise, we will get an mkey with 0 entries and
the post send operation that is used to fill it will complete with
the following error:

mlx5_0:dump_cqe:275:(pid 0): dump error cqe
00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
00000000 0f007806 25000025 49ce59d2

Fixes: 49780d42dfc9 ("IB/mlx5: Expose MR cache for mlx5_ib")
Cc: <redacted> # v4.10+
Signed-off-by: Majd Dibbiny <redacted>
Reviewed-by: Ilya Lesokhin <redacted>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Thanks, applied.

-- 
Doug Ledford [off-list ref]
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