IB/mlx4: When no DMFS for IPoIB, don't allow NET_IF QPs
authorEran Ben Elisha <eranbe@mellanox.com>
Thu, 10 Nov 2016 09:31:00 +0000 (11:31 +0200)
committerDoug Ledford <dledford@redhat.com>
Tue, 13 Dec 2016 18:29:46 +0000 (13:29 -0500)
commit1f22e454df2eb99ba6b7ace3f594f6805cdf5cbc
tree0089e250082ab4ba3426a937f33c14a4424251fb
parent6fa26208206c406fa529cd73f7ae6bf4181e270b
IB/mlx4: When no DMFS for IPoIB, don't allow NET_IF QPs

According to the firmware spec, FLOW_STEERING_IB_UC_QP_RANGE command is
supported only if dmfs_ipoib bit is set.

If it isn't set we want to ensure allocating NET_IF QPs fail. We do so
by filling out the allocation bitmap. By thus, the NET_IF QPs allocating
function won't find any free QP and will fail.

Fixes: c1c98501121e ('IB/mlx4: Add support for steerable IB UD QPs')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
drivers/infiniband/hw/mlx4/main.c