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: f0cb411aad23 ("RDMA/hns: Use new interface to modify QP context")
Signed-off-by: Yixing Liu <liuyixing1@xxxxxxxxxx>
Signed-off-by: Weihang Li <liweihang@xxxxxxxxxx>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 1 -
1 file changed, 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 069c7cd..7da2a74 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -4515,7 +4515,6 @@ 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);
--
2.7.4
