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RDMA/hns: Fix page size cap from firmware

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[ Upstream commit 99dc5a0712 ]

Add verification to make sure the roce page size cap is supported by the
system page size.

Fixes: ba6bb7e974 ("RDMA/hns: Add interfaces to get pf capabilities from firmware")
Link: https://lore.kernel.org/r/20221126102911.2921820-5-xuhaoyue1@hisilicon.com
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chengchang Tang 2022-11-26 18:29:09 +08:00 committed by Greg Kroah-Hartman
parent aaa589124d
commit d78e8b4c86
1 changed files with 3 additions and 0 deletions
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3
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@ -2341,6 +2341,9 @@ static int hns_roce_query_pf_caps(struct hns_roce_dev *hr_dev)
caps->wqe_sge_hop_num = hr_reg_read(resp_d, PF_CAPS_D_EX_SGE_HOP_NUM);
caps->wqe_rq_hop_num = hr_reg_read(resp_d, PF_CAPS_D_RQWQE_HOP_NUM);
if (!(caps->page_size_cap & PAGE_SIZE))
caps->page_size_cap = HNS_ROCE_V2_PAGE_SIZE_SUPPORTED;
return 0;
}