diff options
| author | Asutosh Das <quic_asutoshd@quicinc.com> | 2023-01-13 12:48:50 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-13 21:03:37 -0500 |
| commit | f87b2c41822aad09aadac31b8ba22c0c0e639eee (patch) | |
| tree | 0acba69679b69ffb8b3497519f15bc00fed6ce2b /include/ufs/ufshci.h | |
| parent | c30d8d010b5efd1d526ae94c9fbbfc0f74cec9fe (diff) | |
scsi: ufs: mcq: Add completion support of a CQE
Add support for completing requests from Completion Queue. Some host
controllers support vendor specific registers that provide a bitmap of all
CQs which have at least one completed CQE. Add this support. The MCQ
specification doesn't provide the Task Tag or its equivalent in the
Completion Queue Entry. So use an indirect method to find the Task Tag
from the Completion Queue Entry.
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/ufshci.h')
| -rw-r--r-- | include/ufs/ufshci.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h index b6ae5718387c..eca89f9f6aac 100644 --- a/include/ufs/ufshci.h +++ b/include/ufs/ufshci.h @@ -263,6 +263,9 @@ enum { /* UTMRLRSR - UTP Task Management Request Run-Stop Register 80h */ #define UTP_TASK_REQ_LIST_RUN_STOP_BIT 0x1 +/* CQISy - CQ y Interrupt Status Register */ +#define UFSHCD_MCQ_CQIS_TAIL_ENT_PUSH_STS 0x1 + /* UICCMD - UIC Command */ #define COMMAND_OPCODE_MASK 0xFF #define GEN_SELECTOR_INDEX_MASK 0xFFFF |