When post wr for mixed rdma operation, it may be use fence
mechanism to keep the correct execute order.
Signed-off-by: Lijun Ou <oulijun@xxxxxxxxxx>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@xxxxxxxxxx>
Signed-off-by: Shaobo Xu <xushaobo2@xxxxxxxxxx>
Signed-off-by: Yixian Liu <liuyixian@xxxxxxxxxx>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 +++-
1 file changed, 3 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 8ed8164..049a0df 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -104,7 +104,6 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
qp->sq.wrid[(qp->sq.head + nreq) & (qp->sq.wqe_cnt - 1)] =
wr->wr_id;
-
rc_sq_wqe = wqe;
memset(rc_sq_wqe, 0, sizeof(*rc_sq_wqe));
for (i = 0; i < wr->num_sge; i++)
@@ -112,6 +111,9 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
rc_sq_wqe->inv_key_immtdata = send_ieth(wr);
+ roce_set_bit(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_FENCE_S,
+ (wr->send_flags & IB_SEND_FENCE) ? 1 : 0);
+
switch (wr->opcode) {
case IB_WR_RDMA_READ:
roce_set_field(rc_sq_wqe->byte_4,
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
