diff options
| author |  Asutosh Das <quic_asutoshd@quicinc.com>
| 2023-01-13 12:48:47 -0800 |
|---|---|---|
| committer |  Martin K. Petersen <martin.petersen@oracle.com>
| 2023-01-13 21:03:37 -0500 |
| commit | 22a2d563de1425ea294e9abfa104dbf20c83a28a (patch) | |
| tree | 8ec74cf0aca641c839eefe789149fdbf29099eae /drivers/ufs/core/ufshcd-priv.h | |
| parent | scsi: ufs: core: mcq: Use shared tags for MCQ mode (diff) | |
| download | linux-22a2d563de1425ea294e9abfa104dbf20c83a28a.tar.gz linux-22a2d563de1425ea294e9abfa104dbf20c83a28a.tar.bz2 linux-22a2d563de1425ea294e9abfa104dbf20c83a28a.zip | |
scsi: ufs: core: Prepare ufshcd_send_command() for MCQ
Add support to send commands using multiple submission queues in MCQ mode.
Modify the functions that use ufshcd_send_command().
Co-developed-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs/core/ufshcd-priv.h')
| -rw-r--r-- | drivers/ufs/core/ufshcd-priv.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/ufs/core/ufshcd-priv.h b/drivers/ufs/core/ufshcd-priv.h index 4cd9b7b63868..013111fca0f7 100644 --- a/drivers/ufs/core/ufshcd-priv.h +++ b/drivers/ufs/core/ufshcd-priv.h @@ -335,4 +335,14 @@ static inline bool ufs_is_valid_unit_desc_lun(struct ufs_dev_info *dev_info, u8 return lun == UFS_UPIU_RPMB_WLUN || (lun < dev_info->max_lu_supported); } +static inline void ufshcd_inc_sq_tail(struct ufs_hw_queue *q) +{ + u32 mask = q->max_entries - 1; + u32 val; + + q->sq_tail_slot = (q->sq_tail_slot + 1) & mask; + val = q->sq_tail_slot * sizeof(struct utp_transfer_req_desc); + writel(val, q->mcq_sq_tail); +} + #endif /* _UFSHCD_PRIV_H_ */ |