RDMA/hns: Fix QP state judgement before sending work requests

The QP can accept send work requests only when the QP is
in the states that allow them to be submitted.

This patch updates the QP state judgement based on the
specification.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 4c37f43..2ca35e3 100644 (file)
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -76,7 +76,8 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
                return -EOPNOTSUPP;
        }
 
-       if (unlikely(qp->state != IB_QPS_RTS && qp->state != IB_QPS_SQD)) {
+       if (unlikely(qp->state == IB_QPS_RESET || qp->state == IB_QPS_INIT ||
+                    qp->state == IB_QPS_RTR)) {
                dev_err(dev, "Post WQE fail, QP state %d err!\n", qp->state);
                *bad_wr = wr;
                return -EINVAL;