From 187a25863fe014486ee834164776b2a587d6934d Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 28 Nov 2005 11:19:43 -0800 Subject: [PATCH] IB/mthca: reset QP's last pointers when transitioning to reset state last pointer is not updated when QP is modified to reset state. This causes data corruption if WQEs are already posted on the queue. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_qp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index dd4e13303e96..f9c8eb9845c9 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -871,7 +871,10 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); mthca_wq_init(&qp->sq); + qp->sq.last = get_send_wqe(qp, qp->sq.max - 1); + mthca_wq_init(&qp->rq); + qp->rq.last = get_recv_wqe(qp, qp->rq.max - 1); if (mthca_is_memfree(dev)) { *qp->sq.db = 0;