From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 9 Feb 2012 16:10:06 +0000 (+0200)
Subject: mlx4: Enforce device max FMR maps in FMR alloc
X-Git-Tag: v3.4-rc1~169^2~1^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a5bbe892da9441835cb6fece26d9bbd95fc820be;p=pandora-kernel.git

mlx4: Enforce device max FMR maps in FMR alloc

ConnectX devices have a limit on the number of mappings that can be
done on an FMR before having to call sync_tpt.  The current
mlx4_ib driver reports the limit correctly in max_map_per_fmr in
.query_device(), but mlx4_core doesn't check it when actually
allocating FMRs.

Add a max_fmr_maps field to struct mlx4_caps and enforce this maximum
value on FMR allocations.

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

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