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| author | Bart Van Assche <bvanassche@acm.org> | 2024-07-08 14:16:05 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-07-10 22:19:05 -0400 |
| commit | af568c7e8292bd96f5a4f3d81dcc099bcfe7cb73 (patch) | |
| tree | 409c79460aa7478beccd97d989c1fab31a4c228d /include/ufs | |
| parent | 5e2053a41984f6086460a6b377a53af46ebe2b0f (diff) | |
| download | linux-af568c7e8292bd96f5a4f3d81dcc099bcfe7cb73.tar.gz linux-af568c7e8292bd96f5a4f3d81dcc099bcfe7cb73.tar.bz2 linux-af568c7e8292bd96f5a4f3d81dcc099bcfe7cb73.zip | |
scsi: ufs: mcq: Make .get_hba_mac() optional
UFSHCI controllers that are compliant with the UFSHCI 4.0 standard report
the maximum number of supported commands in the controller capabilities
register. Use that value if .get_hba_mac == NULL.
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240708211716.2827751-11-bvanassche@acm.org
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/ufs')
| -rw-r--r-- | include/ufs/ufshcd.h | 4 | ||||
| -rw-r--r-- | include/ufs/ufshci.h | 1 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index c0e28a512b3c..6518997930f3 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -325,7 +325,9 @@ struct ufs_pwr_mode_info { * @event_notify: called to notify important events * @reinit_notify: called to notify reinit of UFSHCD during max gear switch * @mcq_config_resource: called to configure MCQ platform resources - * @get_hba_mac: called to get vendor specific mac value, mandatory for mcq mode + * @get_hba_mac: reports maximum number of outstanding commands supported by + * the controller. Should be implemented for UFSHCI 4.0 or later + * controllers that are not compliant with the UFSHCI 4.0 specification. * @op_runtime_config: called to config Operation and runtime regs Pointers * @get_outstanding_cqs: called to get outstanding completion queues * @config_esi: called to config Event Specific Interrupt diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h index 8d0cc73537c6..38fe97971a65 100644 --- a/include/ufs/ufshci.h +++ b/include/ufs/ufshci.h @@ -68,6 +68,7 @@ enum { /* Controller capability masks */ enum { MASK_TRANSFER_REQUESTS_SLOTS_SDB = 0x0000001F, + MASK_TRANSFER_REQUESTS_SLOTS_MCQ = 0x000000FF, MASK_NUMBER_OUTSTANDING_RTT = 0x0000FF00, MASK_TASK_MANAGEMENT_REQUEST_SLOTS = 0x00070000, MASK_EHSLUTRD_SUPPORTED = 0x00400000, |