IB/mlx5: Add PCI write end padding support

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Add the PCI write end padding flag to device_cap_flags enum and set it
during mlx5_ib_query_device so it will be reported to user-space.

During WQ/QP creation, set that capability for WQ/QP if user requested
it and HW supports it.

PCI write end padding modification is not supported for now. There's no
such flag for a QP but for a WQ, create and modify use the same flag.
Return an error if PCI write end padding flag is set during modify_wq.

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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This commit is contained in:

Noa Osherovich 2017-10-29 13:59:45 +02:00 • committed by Doug Ledford

parent e1d2e88733

commit b1383aa641

3 changed files with 38 additions and 4 deletions

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3

drivers/infiniband/hw/mlx5/main.c

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3

drivers/infiniband/hw/mlx5/mlx5_ib.h

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36

drivers/infiniband/hw/mlx5/qp.c

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