6.5-stable review patch. If anyone has any objections, please let me know.
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From: Luoyouming luoyouming@huawei.com
[ Upstream commit 27c5fd271d8b8730fc0bb1b6cae953ad7808a874 ]
Due to hardware limitations, only DCQCN is supported for UD. Therefore, the default algorithm for UD is set to DCQCN.
Fixes: f91696f2f053 ("RDMA/hns: Support congestion control type selection according to the FW") Signed-off-by: Luoyouming luoyouming@huawei.com Signed-off-by: Junxian Huang huangjunxian6@hisilicon.com Link: https://lore.kernel.org/r/20231017125239.164455-6-huangjunxian6@hisilicon.co... Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 1edb344cd0c21..d371442a78b59 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -4740,6 +4740,9 @@ static int check_cong_type(struct ib_qp *ibqp, { struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device);
+ if (ibqp->qp_type == IB_QPT_UD) + hr_dev->caps.cong_type = CONG_TYPE_DCQCN; + /* different congestion types match different configurations */ switch (hr_dev->caps.cong_type) { case CONG_TYPE_DCQCN: