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authorSudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>2016-06-28 07:46:03 -0400
committerDavid S. Miller <davem@davemloft.net>2016-06-29 08:12:45 -0400
commit34c7bb4705a0a2d344b0c82eaf3d3bfa2bc9da45 (patch)
tree8ca04fdbb5fa7ee021f95e5d7250eb79b6193d77 /net
parentb560f03ddfb072bca65e9440ff0dc4f9b1d1f056 (diff)
qed: Protect the doorbell BAR with the write barriers.
SPQ doorbell is currently protected with the compilation barrier. Under the stress scenarios, we may get into a state where (due to the weak ordering) several ramrod doorbells were written to the BAR with an out-of-order producer values. Need to change the barrier type to a write barrier to make sure that the write buffer is flushed after each doorbell. Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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