This is a note to let you know that I've just added the patch titled RDMA/hns: Fix page size cap from firmware to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: rdma-hns-fix-page-size-cap-from-firmware.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit f12a5455d1853c6d763e57f2dae70ac49554a387 Author: Chengchang Tang <tangchengchang@xxxxxxxxxx> Date: Sat Nov 26 18:29:09 2022 +0800 RDMA/hns: Fix page size cap from firmware [ 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> diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index b9557be812b7..16f39321b319 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -2371,6 +2371,9 @@ static int hns_roce_query_pf_caps(struct hns_roce_dev *hr_dev) V2_QUERY_PF_CAPS_D_RQWQE_HOP_NUM_M, V2_QUERY_PF_CAPS_D_RQWQE_HOP_NUM_S); + if (!(caps->page_size_cap & PAGE_SIZE)) + caps->page_size_cap = HNS_ROCE_V2_PAGE_SIZE_SUPPORTED; + return 0; }