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scsi: ufs: core: Update CQ Entry to UFS 4.1 format

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Update the completion queue (CQ) entry format according to the UFS 4.1
specification. UFS 4.1 introduces new members in reserved record
DW5. Also refine DW4 with detailed members defined in UFS 4.0. Modify
the code to incorporate these changes by updating the overall_status in
the CQ entry structure.

Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251016023507.1000664-2-peter.wang@mediatek.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Peter Wang
2025-10-16 10:32:31 +08:00
committed by Martin K. Petersen
parent ce085ecdba
commit bfe0d22f12
2 changed files with 21 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/ufs/core/ufshcd.c
View File

@@ -856,7 +856,7 @@ static enum utp_ocs ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp,
struct cq_entry *cqe)
{
if (cqe)
return le32_to_cpu(cqe->status) & MASK_OCS;
return cqe->overall_status & MASK_OCS;
return lrbp->utr_descriptor_ptr->header.ocs & MASK_OCS;
}
@@ -5646,7 +5646,7 @@ void ufshcd_compl_one_cqe(struct ufs_hba *hba, int task_tag,
scsi_done(cmd);
} else {
if (cqe) {
ocs = le32_to_cpu(cqe->status) & MASK_OCS;
ocs = cqe->overall_status & MASK_OCS;
lrbp->utr_descriptor_ptr->header.ocs = ocs;
}
complete(&hba->dev_cmd.complete);

22
include/ufs/ufshci.h
View File

@@ -569,10 +569,26 @@ struct cq_entry {
__le16 prd_table_offset;
/* DW 4 */
__le32 status;
u8 overall_status;
u8 extended_error_code;
__le16 reserved_1;
/* DW 5-7 */
__le32 reserved[3];
/* DW 5 */
u8 task_tag;
u8 lun;
#if defined(__BIG_ENDIAN)
u8 ext_iid:4;
u8 iid:4;
#elif defined(__LITTLE_ENDIAN)
u8 iid:4;
u8 ext_iid:4;
#else
#error
#endif
u8 reserved_2;
/* DW 6-7 */
__le32 reserved_3[2];
};
static_assert(sizeof(struct cq_entry) == 32);