tree e9047224895572e01a408f9d5aaa2c1de32df4b5
parent b57141c1abe41e26c09b1b1b7ece463464ba6de2
author Eli Cohen <eli@mellanox.com> 1466605646 +0300
committer Doug Ledford <dledford@redhat.com> 1466690637 -0400

IB/mlx5: Fix post send fence logic

If the caller specified IB_SEND_FENCE in the send flags of the work
request and no previous work request stated that the successive one
should be fenced, the work request would be executed without a fence.
This could result in RDMA read or atomic operations failure due to a MR
being invalidated. Fix this by adding the mlx5 enumeration for fencing
RDMA/atomic operations and fix the logic to apply this.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>