IB/mlx5: Block MR WR if UMR is not possible

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Check conditions that are mandatory to post_send UMR WQEs.
1. Modifying page size.
2. Modifying remote atomic permissions if atomic access is required.

If either condition is not fulfilled then fail to post_send() flow.

Fixes: c8d75a980f ("IB/mlx5: Respect new UMR capabilities")
Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190815083834.9245-9-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>

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Moni Shoua 2019-08-15 11:38:34 +03:00 • committed by Doug Ledford

parent 25a4517214

commit 841b07f99a

1 changed files with 19 additions and 5 deletions

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drivers/infiniband/hw/mlx5/qp.c

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