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| 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/ufshcd.h | |
| 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/ufshcd.h')
| -rw-r--r-- | include/ufs/ufshcd.h | 3 |
1 files changed, 3 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) |