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RDMA/hns: Fix unnecessary err return when using invalid congest control algorithm

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[ 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@hisilicon.com>
Link: https://lore.kernel.org/r/20231028093242.670325-1-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Junxian Huang 2023-10-28 17:32:42 +08:00 committed by Greg Kroah-Hartman
parent 24436fe77e
commit 38772f6672
1 changed files with 9 additions and 4 deletions
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13
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@ -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;