From 512f4f1653e63b6efbdccb296b812fa809b7c95c Mon Sep 17 00:00:00 2001 From: Lijun Ou Date: Fri, 29 Sep 2017 23:10:10 +0800 Subject: RDMA/hns: Only assign dest_qp if IB_QP_DEST_QPN bit is set Only when the IB_QP_DEST_QPN flag of attr_mask is set is it valid to assign the dest_qp_num into the dest_qp field of qp context. Signed-off-by: Lijun Ou Signed-off-by: Wei Hu (Xavier) Signed-off-by: Shaobo Xu Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/infiniband/hw/hns/hns_roce_hw_v1.c') diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c index 93010a5d0cbf..55e6daabcde2 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c @@ -2888,10 +2888,11 @@ static int hns_roce_v1_m_qp(struct ib_qp *ibqp, const struct ib_qp_attr *attr, QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S, ilog2((unsigned int)attr->max_dest_rd_atomic)); - roce_set_field(context->qpc_bytes_36, - QP_CONTEXT_QPC_BYTES_36_DEST_QP_M, - QP_CONTEXT_QPC_BYTES_36_DEST_QP_S, - attr->dest_qp_num); + if (attr_mask & IB_QP_DEST_QPN) + roce_set_field(context->qpc_bytes_36, + QP_CONTEXT_QPC_BYTES_36_DEST_QP_M, + QP_CONTEXT_QPC_BYTES_36_DEST_QP_S, + attr->dest_qp_num); /* Configure GID index */ port_num = rdma_ah_get_port_num(&attr->ah_attr); -- cgit