6.6-stable review patch. If anyone has any objections, please let me know.
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From: Chengchang Tang tangchengchang@huawei.com
[ Upstream commit ce196f6297c7f3ab7780795e40efd6c521f60c8b ]
The 1bit-ECC recovery address read from HW only contain bits 64:12, so it should be fixed left-shifted 12 bits when used.
Currently, the driver will shift the address left by PAGE_SHIFT when used, which is wrong in non-4K OS.
Fixes: 2de949abd6a5 ("RDMA/hns: Recover 1bit-ECC error of RAM on chip") Signed-off-by: Chengchang Tang tangchengchang@huawei.com Signed-off-by: Junxian Huang huangjunxian6@hisilicon.com Link: https://patch.msgid.link/20240906093444.3571619-8-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 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 2cdd002b71228..d226081e1cc03 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -6157,7 +6157,7 @@ static u64 fmea_get_ram_res_addr(u32 res_type, __le64 *data) res_type == ECC_RESOURCE_SCCC) return le64_to_cpu(*data);
- return le64_to_cpu(*data) << PAGE_SHIFT; + return le64_to_cpu(*data) << HNS_HW_PAGE_SHIFT; }
static int fmea_recover_others(struct hns_roce_dev *hr_dev, u32 res_type,