6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Junxian Huang <huangjunxian6@xxxxxxxxxxxxx>
[ Upstream commit efb9cbf66440482ceaa90493d648226ab7ec2ebf ]
Add a default congest control algorithm so that driver won't return
an error when the configured algorithm is invalid.
Fixes: f91696f2f053 ("RDMA/hns: Support congestion control type selection according to the FW")
Signed-off-by: Junxian Huang <huangjunxian6@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20231028093242.670325-1-huangjunxian6@xxxxxxxxxxxxx
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 58d14f1562b9a..486d635b6e3ab 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -4755,10 +4755,15 @@ static int check_cong_type(struct ib_qp *ibqp,
cong_alg->wnd_mode_sel = WND_LIMIT;
break;
default:
- ibdev_err(&hr_dev->ib_dev,
- "error type(%u) for congestion selection.\n",
- hr_dev->caps.cong_type);
- return -EINVAL;
+ ibdev_warn(&hr_dev->ib_dev,
+ "invalid type(%u) for congestion selection.\n",
+ hr_dev->caps.cong_type);
+ hr_dev->caps.cong_type = CONG_TYPE_DCQCN;
+ cong_alg->alg_sel = CONG_DCQCN;
+ cong_alg->alg_sub_sel = UNSUPPORT_CONG_LEVEL;
+ cong_alg->dip_vld = DIP_INVALID;
+ cong_alg->wnd_mode_sel = WND_LIMIT;
+ break;
}
return 0;
--
2.42.0
