diff options
| author | Bao D. Nguyen <quic_nguyenb@quicinc.com> | 2023-05-30 01:12:22 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-06-01 03:17:08 +0300 |
| commit | 8d7290348992f27242dd6a696fa2eede709f0b14 (patch) | |
| tree | e93445c8f56bd21574d83f15f9c546a1b0f153d1 /include/ufs | |
| parent | 7aa12d2fe89d7b95ad01ca38a291c7ec3efe7599 (diff) | |
| download | linux-8d7290348992f27242dd6a696fa2eede709f0b14.tar.xz | |
scsi: ufs: mcq: Add supporting functions for MCQ abort
Add supporting functions to handle UFS abort in MCQ mode.
Signed-off-by: Bao D. Nguyen <quic_nguyenb@quicinc.com>
Link: https://lore.kernel.org/r/d452c5ad62dc863cc067ec82daa0885ec98bd508.1685396241.git.quic_nguyenb@quicinc.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Tested-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/ufs')
| -rw-r--r-- | include/ufs/ufshcd.h | 3 | ||||
| -rw-r--r-- | include/ufs/ufshci.h | 17 |
2 files changed, 20 insertions, 0 deletions
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index f7553293ba98..145710e9c2a5 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -1087,6 +1087,7 @@ struct ufs_hba { * @cq_tail_slot: current slot to which CQ tail pointer is pointing * @cq_head_slot: current slot to which CQ head pointer is pointing * @cq_lock: Synchronize between multiple polling instances + * @sq_mutex: prevent submission queue concurrent access */ struct ufs_hw_queue { void __iomem *mcq_sq_head; @@ -1105,6 +1106,8 @@ struct ufs_hw_queue { u32 cq_tail_slot; u32 cq_head_slot; spinlock_t cq_lock; + /* prevent concurrent access to submission queue */ + struct mutex sq_mutex; }; static inline bool is_mcq_enabled(struct ufs_hba *hba) diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h index 7c5a76b2c70a..9d291ca7f31d 100644 --- a/include/ufs/ufshci.h +++ b/include/ufs/ufshci.h @@ -99,6 +99,9 @@ enum { enum { REG_SQHP = 0x0, REG_SQTP = 0x4, + REG_SQRTC = 0x8, + REG_SQCTI = 0xC, + REG_SQRTS = 0x10, }; enum { @@ -111,12 +114,26 @@ enum { REG_CQIE = 0x4, }; +enum { + SQ_START = 0x0, + SQ_STOP = 0x1, + SQ_ICU = 0x2, +}; + +enum { + SQ_STS = 0x1, + SQ_CUS = 0x2, +}; + +#define SQ_ICU_ERR_CODE_MASK GENMASK(7, 4) +#define UPIU_COMMAND_TYPE_MASK GENMASK(31, 28) #define UFS_MASK(mask, offset) ((mask) << (offset)) /* UFS Version 08h */ #define MINOR_VERSION_NUM_MASK UFS_MASK(0xFFFF, 0) #define MAJOR_VERSION_NUM_MASK UFS_MASK(0xFFFF, 16) +#define UFSHCD_NUM_RESERVED 1 /* * Controller UFSHCI version * - 2.x and newer use the following scheme: |