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authorMichael S. Tsirkin <mst@mellanox.co.il>2005-11-28 14:19:43 -0500
committerRoland Dreier <rolandd@cisco.com>2005-11-28 14:19:43 -0500
commit187a25863fe014486ee834164776b2a587d6934d (patch)
tree918111360e352d128126bb338227ec4fb6e8afbc /drivers/infiniband
parent458af5439fe7ae7d95ca14106844e61f0795166c (diff)
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 <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_qp.c3
1 files changed, 3 insertions, 0 deletions
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)
871 qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); 871 qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
872 872
873 mthca_wq_init(&qp->sq); 873 mthca_wq_init(&qp->sq);
874 qp->sq.last = get_send_wqe(qp, qp->sq.max - 1);
875
874 mthca_wq_init(&qp->rq); 876 mthca_wq_init(&qp->rq);
877 qp->rq.last = get_recv_wqe(qp, qp->rq.max - 1);
875 878
876 if (mthca_is_memfree(dev)) { 879 if (mthca_is_memfree(dev)) {
877 *qp->sq.db = 0; 880 *qp->sq.db = 0;