Merge pull request #1513 from hginjgerx/bugffff

libhns: Two bugfixes in post_send flow

providers/hns/hns_roce_u_hw_v2.c

@@ -1223,7 +1223,7 @@ static int set_rc_wqe(void *wqe, struct hns_roce_qp *qp, struct ibv_send_wr *wr,
 
 	hr_reg_write_bool(wqe, RCWQE_CQE,
 			  !!(wr->send_flags & IBV_SEND_SIGNALED));
-	hr_reg_write_bool(wqe, RCWQE_FENCE,
+	hr_reg_write_bool(wqe, RCWQE_SO,
 			  !!(wr->send_flags & IBV_SEND_FENCE));
 	hr_reg_write_bool(wqe, RCWQE_SE,
 			  !!(wr->send_flags & IBV_SEND_SOLICITED));
@@ -1272,7 +1272,7 @@ int hns_roce_u_v2_post_send(struct ibv_qp *ibvqp, struct ibv_send_wr *wr,
 	struct hns_roce_context *ctx = to_hr_ctx(ibvqp->context);
 	struct hns_roce_qp *qp = to_hr_qp(ibvqp);
 	struct hns_roce_sge_info sge_info = {};
-	struct hns_roce_rc_sq_wqe *wqe;
+	struct hns_roce_rc_sq_wqe *wqe = NULL;
 	struct ibv_qp_attr attr = {};
 	unsigned int wqe_idx, nreq;
 	int ret;
@@ -1288,15 +1288,15 @@ int hns_roce_u_v2_post_send(struct ibv_qp *ibvqp, struct ibv_send_wr *wr,
 	sge_info.start_idx = qp->next_sge; /* start index of extend sge */
 
 	for (nreq = 0; wr; ++nreq, wr = wr->next) {
-		if (hns_roce_v2_wq_overflow(&qp->sq, nreq,
-					    to_hr_cq(qp->verbs_qp.qp.send_cq))) {
-			ret = ENOMEM;
+		if (wr->num_sge > (int)qp->sq.max_gs) {
+			ret = qp->sq.max_gs > 0 ? EINVAL : EOPNOTSUPP;
 			*bad_wr = wr;
 			goto out;
 		}
 
-		if (wr->num_sge > qp->sq.max_gs) {
-			ret = EINVAL;
+		if (hns_roce_v2_wq_overflow(&qp->sq, nreq,
+					    to_hr_cq(qp->verbs_qp.qp.send_cq))) {
+			ret = ENOMEM;
 			*bad_wr = wr;
 			goto out;
 		}