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authorLuoyouming <luoyouming@huawei.com>2023-10-17 15:52:37 +0300
committerLeon Romanovsky <leon@kernel.org>2023-10-19 09:49:40 +0300
commit27c5fd271d8b8730fc0bb1b6cae953ad7808a874 (patch)
treec78035c7f4a952ccd0a777cbf7ff920ec75b5880
parent5e617c18b1f34ec57ad5dce44f09de603cf6bd6c (diff)
downloadlinux-27c5fd271d8b8730fc0bb1b6cae953ad7808a874.tar.xz
RDMA/hns: The UD mode can only be configured with DCQCN
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.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
-rw-r--r--drivers/infiniband/hw/hns/hns_roce_hw_v2.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index cef43e77dc25..0cd2612a4987 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -4730,6 +4730,9 @@ 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: