iw_cxgb4: Atomically flush per QP HW CQEs

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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>

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Bharat Potnuri 2018-04-27 16:41:16 +05:30 • committed by Doug Ledford

parent 54e7e48b13

commit 2df19e19ae

3 changed files with 13 additions and 4 deletions

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11

drivers/infiniband/hw/cxgb4/cq.c

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2

drivers/infiniband/hw/cxgb4/iw_cxgb4.h

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4

drivers/infiniband/hw/cxgb4/qp.c

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