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Code Issues Releases Wiki Activity

scsi: ufs: mcq: Use pointer arithmetic in ufshcd_send_command()

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Make sqe_base_addr the UTRD pointer it is, instead of an opaque void *.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20230329101303.18377-3-avri.altman@wdc.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Avri Altman 2023-03-29 13:13:03 +03:00 committed by Martin K. Petersen
parent 4de243c40c
commit 3c85f087fa
2 changed files with 4 additions and 3 deletions
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5
drivers/ufs/core/ufshcd.c
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@ -2242,10 +2242,11 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag,
if (is_mcq_enabled(hba)) {
int utrd_size = sizeof(struct utp_transfer_req_desc);
struct utp_transfer_req_desc *src = lrbp->utr_descriptor_ptr;
struct utp_transfer_req_desc *dest = hwq->sqe_base_addr + hwq->sq_tail_slot;
spin_lock(&hwq->sq_lock);
memcpy(hwq->sqe_base_addr + (hwq->sq_tail_slot * utrd_size),
lrbp->utr_descriptor_ptr, utrd_size);
memcpy(dest, src, utrd_size);
ufshcd_inc_sq_tail(hwq);
spin_unlock(&hwq->sq_lock);
} else {

2
include/ufs/ufshcd.h
View file

@ -1095,7 +1095,7 @@ struct ufs_hw_queue {
void __iomem *mcq_cq_head;
void __iomem *mcq_cq_tail;
void *sqe_base_addr;
struct utp_transfer_req_desc *sqe_base_addr;
dma_addr_t sqe_dma_addr;
struct cq_entry *cqe_base_addr;
dma_addr_t cqe_dma_addr;