tree b2f6622d07fb37ddb5501cddd377aeacdab72c6f
parent 54e7e48b13c85d9a730b989fe7dc5250199a4f81
author Bharat Potnuri <bharat@chelsio.com> 1524827476 +0530
committer Doug Ledford <dledford@redhat.com> 1524854324 -0400

iw_cxgb4: Atomically flush per QP HW CQEs

When a CQ is shared by multiple QPs, c4iw_flush_hw_cq() needs to acquire
corresponding QP lock before moving the CQEs into its corresponding SW
queue and accessing the SQ contents for completing a WR.
Ignore CQEs if corresponding QP is already flushed.

Cc: stable@vger.kernel.org
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>