[PATCH for-next 5/6] RDMA/hns: Fix QP state judgement before sending work requests

Lijun Ou
2017-12-23T08:22:21Z

From: Yixian Liu <liuyixian-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>

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-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Signed-off-by: Shaobo Xu <xushaobo2-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index a1d8ca0..849c333 100644
--- 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;
--
1.9.1