From: Chengchang Tang <tangchengchang@xxxxxxxxxx>
[ Upstream commit 99dc5a0712883d5d13b620d25b3759d429577bc8 ]
Add verification to make sure the roce page size cap is supported by the
system page size.
Fixes: ba6bb7e97421 ("RDMA/hns: Add interfaces to get pf capabilities from firmware")
Link: https://lore.kernel.org/r/20221126102911.2921820-5-xuhaoyue1@xxxxxxxxxxxxx
Signed-off-by: Chengchang Tang <tangchengchang@xxxxxxxxxx>
Signed-off-by: Haoyue Xu <xuhaoyue1@xxxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 0f4ef4516868..76ed547b76ea 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -2166,6 +2166,9 @@ static int hns_roce_query_pf_caps(struct hns_roce_dev *hr_dev)
calc_pg_sz(caps->num_idx_segs, caps->idx_entry_sz, caps->idx_hop_num,
1, &caps->idx_buf_pg_sz, &caps->idx_ba_pg_sz, HEM_TYPE_IDX);
+ if (!(caps->page_size_cap & PAGE_SIZE))
+ caps->page_size_cap = HNS_ROCE_V2_PAGE_SIZE_SUPPORTED;
+
return 0;
}
--
2.35.1
