diff options
| author | Asutosh Das <quic_asutoshd@quicinc.com> | 2023-01-13 12:48:51 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-13 21:03:38 -0500 |
| commit | ed975065c31c2a0372e13c19e8140b69814a98ba (patch) | |
| tree | d8dff0f89d9011ad76ed4d615b44bb0d5b4dcc55 /include/ufs | |
| parent | f87b2c41822aad09aadac31b8ba22c0c0e639eee (diff) | |
| download | linux-ed975065c31c2a0372e13c19e8140b69814a98ba.tar.gz | |
scsi: ufs: core: mcq: Add completion support in poll
Complete CQE requests in poll. Assumption is that several poll completion
may happen in different CPUs for the same completion queue. Hence a spin
lock protection is added.
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 'include/ufs')
| -rw-r--r-- | include/ufs/ufshcd.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 0dcb104a6713d..33973e9f6d6a5 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -1086,6 +1086,7 @@ struct ufs_hba { * @sq_lock: serialize submission queue access * @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 */ struct ufs_hw_queue { void __iomem *mcq_sq_head; @@ -1103,6 +1104,7 @@ struct ufs_hw_queue { spinlock_t sq_lock; u32 cq_tail_slot; u32 cq_head_slot; + spinlock_t cq_lock; }; static inline bool is_mcq_enabled(struct ufs_hba *hba) |