From: Yixing Liu <liuyixing1@xxxxxxxxxx>
In RNR NAK screnario, according to the specification, when no credit is
available, only the first fragment of the send request can be sent. The
LSN(Limit Sequence Number) field should be 0 or the entire packet will be
resent.
Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
Signed-off-by: Yixing Liu <liuyixing1@xxxxxxxxxx>
Signed-off-by: Wenpeng Liang <liangwenpeng@xxxxxxxxxx>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index d00be78..198a0c6 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -4483,9 +4483,6 @@ static int modify_qp_rtr_to_rts(struct ib_qp *ibqp,
hr_reg_clear(qpc_mask, QPC_CHECK_FLG);
- hr_reg_write(context, QPC_LSN, 0x100);
- hr_reg_clear(qpc_mask, QPC_LSN);
-
hr_reg_clear(qpc_mask, QPC_V2_IRRL_HEAD);
return 0;
--
2.8.1
