IB/mlx4: When no DMFS for IPoIB, don't allow NET_IF QPs

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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: c1c9850112 ('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>

...

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Eran Ben Elisha 2016-11-10 11:31:00 +02:00 • committed by Doug Ledford

parent 6fa2620820

commit 1f22e454df

1 changed files with 13 additions and 8 deletions

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drivers/infiniband/hw/mlx4/main.c

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