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Subject[PATCH V2 for-next 4/8] RDMA/hns: Set mask for destination qp field of qp context assignment
Date
From: Lijun Ou <oulijun@huawei.com>

When only set IB_QP_DEST_QPN flag for attr_mask, the operation of
assigning the dest_qp_num for dest_qp field of qp context is valid.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
---
drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
index 6f309f7..10d828c 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);
--
1.9.1
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