RDMA/hns: Support RDMA_CM in ROH mode

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5WKYW

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Support RDMA_CM in ROH mode
Signed-off-by: NKe Chen <chenke54@huawei.com>
Reviewed-by: NYangyang Li <liyangyang20@huawei.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -476,6 +476,7 @@ static inline int set_ud_wqe(struct hns_roce_qp *qp,
 			     void *wqe, unsigned int *sge_idx,
 			     unsigned int owner_bit)
 {
+	struct hns_roce_dev *hr_dev = to_hr_dev(qp->ibqp.device);
 	struct hns_roce_ah *ah = to_hr_ah(ud_wr(wr)->ah);
 	struct hns_roce_v2_ud_send_wqe *ud_sq_wqe = wqe;
 	unsigned int curr_idx = *sge_idx;
@@ -509,6 +510,9 @@ static inline int set_ud_wqe(struct hns_roce_qp *qp,
 	if (ret)
 		return ret;
 
+	if (hr_dev->mac_type == HNAE3_MAC_ROH && qp->ibqp.qp_type == IB_QPT_GSI)
+		ud_sq_wqe->dmac[0] = 0xFF;
+
 	qp->sl = to_hr_ah(ud_wr(wr)->ah)->av.sl;
 
 	set_extend_sge(qp, wr->sg_list, &curr_idx, valid_num_sge);