nvme_cap - Man Page
This field indicates the controller capabilities register
Synopsis
enum nvme_cap {
NVME_CAP_MQES_SHIFT ,
NVME_CAP_CQR_SHIFT ,
NVME_CAP_AMS_SHIFT ,
NVME_CAP_TO_SHIFT ,
NVME_CAP_DSTRD_SHIFT ,
NVME_CAP_NSSRC_SHIFT ,
NVME_CAP_CSS_SHIFT ,
NVME_CAP_BPS_SHIFT ,
NVME_CAP_CPS_SHIFT ,
NVME_CAP_MPSMIN_SHIFT ,
NVME_CAP_MPSMAX_SHIFT ,
NVME_CAP_PMRS_SHIFT ,
NVME_CAP_CMBS_SHIFT ,
NVME_CAP_NSSS_SHIFT ,
NVME_CAP_CRMS_SHIFT ,
NVME_CAP_MQES_MASK ,
NVME_CAP_CQR_MASK ,
NVME_CAP_AMS_MASK ,
NVME_CAP_TO_MASK ,
NVME_CAP_DSTRD_MASK ,
NVME_CAP_NSSRC_MASK ,
NVME_CAP_CSS_MASK ,
NVME_CAP_BPS_MASK ,
NVME_CAP_CPS_MASK ,
NVME_CAP_MPSMIN_MASK ,
NVME_CAP_MPSMAX_MASK ,
NVME_CAP_PMRS_MASK ,
NVME_CAP_CMBS_MASK ,
NVME_CAP_NSSS_MASK ,
NVME_CAP_CRMS_MASK ,
NVME_CAP_AMS_WRR ,
NVME_CAP_AMS_VS ,
NVME_CAP_CSS_NVM ,
NVME_CAP_CSS_CSI ,
NVME_CAP_CSS_ADMIN ,
NVME_CAP_CPS_NONE ,
NVME_CAP_CPS_CTRL ,
NVME_CAP_CPS_DOMAIN ,
NVME_CAP_CPS_NVMS ,
NVME_CAP_CRWMS ,
NVME_CAP_CRIMS
};
Constants
- NVME_CAP_MQES_SHIFT
Shift amount to get the maximum queue entries supported
- NVME_CAP_CQR_SHIFT
Shift amount to get the contiguous queues required
- NVME_CAP_AMS_SHIFT
Shift amount to get the arbitration mechanism supported
- NVME_CAP_TO_SHIFT
Shift amount to get the timeout
- NVME_CAP_DSTRD_SHIFT
Shift amount to get the doorbell stride
- NVME_CAP_NSSRC_SHIFT
Shift amount to get the NVM subsystem reset supported
- NVME_CAP_CSS_SHIFT
Shift amount to get the command sets supported
- NVME_CAP_BPS_SHIFT
Shift amount to get the boot partition support
- NVME_CAP_CPS_SHIFT
Shift amount to get the controller power scope
- NVME_CAP_MPSMIN_SHIFT
Shift amount to get the memory page size minimum
- NVME_CAP_MPSMAX_SHIFT
Shift amount to get the memory page size maximum
- NVME_CAP_PMRS_SHIFT
Shift amount to get the persistent memory region supported
- NVME_CAP_CMBS_SHIFT
Shift amount to get the controller memory buffer supported
- NVME_CAP_NSSS_SHIFT
Shift amount to get the NVM subsystem shutdown supported
- NVME_CAP_CRMS_SHIFT
Shift amount to get the controller ready modes supported
- NVME_CAP_MQES_MASK
Mask to get the maximum queue entries supported
- NVME_CAP_CQR_MASK
Mask to get the contiguous queues required
- NVME_CAP_AMS_MASK
Mask to get the arbitration mechanism supported
- NVME_CAP_TO_MASK
Mask to get the timeout
- NVME_CAP_DSTRD_MASK
Mask to get the doorbell stride
- NVME_CAP_NSSRC_MASK
Mask to get the NVM subsystem reset supported
- NVME_CAP_CSS_MASK
Mask to get the command sets supported
- NVME_CAP_BPS_MASK
Mask to get the boot partition support
- NVME_CAP_CPS_MASK
Mask to get the controller power scope
- NVME_CAP_MPSMIN_MASK
Mask to get the memory page size minimum
- NVME_CAP_MPSMAX_MASK
Mask to get the memory page size maximum
- NVME_CAP_PMRS_MASK
Mask to get the persistent memory region supported
- NVME_CAP_CMBS_MASK
Mask to get the controller memory buffer supported
- NVME_CAP_NSSS_MASK
Mask to get the NVM subsystem shutdown supported
- NVME_CAP_CRMS_MASK
Mask to get the controller ready modes supported
- NVME_CAP_AMS_WRR
Weighted round robin with urgent priority class
- NVME_CAP_AMS_VS
Vendor specific
- NVME_CAP_CSS_NVM
NVM command set or a discovery controller
- NVME_CAP_CSS_CSI
Controller supports one or more I/O command sets
- NVME_CAP_CSS_ADMIN
No I/O command set is supported
- NVME_CAP_CPS_NONE
Not reported
- NVME_CAP_CPS_CTRL
Controller scope
- NVME_CAP_CPS_DOMAIN
Domain scope
- NVME_CAP_CPS_NVMS
NVM subsystem scope
- NVME_CAP_CRWMS
Controller ready with media support
- NVME_CAP_CRIMS
Controller ready independent of media support