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scsi: ufs: core: Fix MCQ tag calculation 

The transfer command descriptor is allocated in ufshcd_memory_alloc() and
referenced by the transfer request descriptor with stride size
sizeof_utp_transfer_cmd_desc() instead of sizeof(struct
utp_transfer_cmd_desc).

Consequently, computing tag by address offset should also refer to the
same stride.

Signed-off-by: Po-Wen Kao <powen.kao@mediatek.com>
Link: https://lore.kernel.org/r/20230504154454.26654-2-powen.kao@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Ziqi Chen <quic_ziqichen@quicinc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Po-Wen Kao 2023-05-04 23:44:49 +08:00 committed by Martin K. Petersen
parent 1a7edd041f
commit 5149452ca6
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/ufs/core/ufs-mcq.c
View File

@ -265,7 +265,7 @@ static int ufshcd_mcq_get_tag(struct ufs_hba *hba,
addr = (le64_to_cpu(cqe->command_desc_base_addr) & CQE_UCD_BA) -
hba->ucdl_dma_addr;
return div_u64(addr, sizeof(struct utp_transfer_cmd_desc));
return div_u64(addr, sizeof_utp_transfer_cmd_desc(hba));
}
static void ufshcd_mcq_process_cqe(struct ufs_hba *hba,

2
drivers/ufs/core/ufshcd.c
View File

@ -8452,7 +8452,7 @@ static void ufshcd_release_sdb_queue(struct ufs_hba *hba, int nutrs)
{
size_t ucdl_size, utrdl_size;
ucdl_size = sizeof(struct utp_transfer_cmd_desc) * nutrs;
ucdl_size = sizeof_utp_transfer_cmd_desc(hba) * nutrs;
dmam_free_coherent(hba->dev, ucdl_size, hba->ucdl_base_addr,
hba->ucdl_dma_addr);