Commit 13a87589 authored Jan 24, 2017 by Ram Amrani Committed by Greg Kroah-Hartman Jun 17, 2017

RDMA/qedr: Don't reset QP when queues aren't flushed




[ Upstream commit 933e6dcaa0f65eb2f624ad760274020874a1f35e ]

Fail QP state transition from error to reset if SQ/RQ are not empty
and still in the process of flushing out the queued work entries.

Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent bbf61096

drivers/infiniband/hw/qedr/verbs.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -1729,6 +1729,14 @@ static int qedr_update_qp_state(struct qedr_dev *dev,
		/* ERR->XXX */
		switch (new_state) {
		case QED_ROCE_QP_STATE_RESET:
		if ((qp->rq.prod != qp->rq.cons) \|\|
		(qp->sq.prod != qp->sq.cons)) {
		DP_NOTICE(dev,
		"Error->Reset with rq/sq not empty rq.prod=%x rq.cons=%x sq.prod=%x sq.cons=%x\n",
		qp->rq.prod, qp->rq.cons, qp->sq.prod,
		qp->sq.cons);
		status = -EINVAL;
		}
		break;
		default:
		status = -EINVAL;