nvme_pmrcap(2)

libnvme(9) API Manual libnvme(9)

NAME

enum nvme_pmrcap - This field indicates the persistent memory region capabilities

SYNOPSIS

enum nvme_pmrcap {
NVME_PMRCAP_RDS_SHIFT ,
NVME_PMRCAP_WDS_SHIFT ,
NVME_PMRCAP_BIR_SHIFT ,
NVME_PMRCAP_PMRTU_SHIFT ,
NVME_PMRCAP_PMRWBM_SHIFT ,
NVME_PMRCAP_PMRTO_SHIFT ,
NVME_PMRCAP_CMSS_SHIFT ,
NVME_PMRCAP_PMRWMB_SHIFT ,
NVME_PMRCAP_RDS_MASK ,
NVME_PMRCAP_WDS_MASK ,
NVME_PMRCAP_BIR_MASK ,
NVME_PMRCAP_PMRTU_MASK ,
NVME_PMRCAP_PMRWBM_MASK ,
NVME_PMRCAP_PMRTO_MASK ,
NVME_PMRCAP_CMSS_MASK ,
NVME_PMRCAP_PMRWMB_MASK ,
NVME_PMRCAP_PMRTU_500MS ,
NVME_PMRCAP_PMRTU_60S

};

Constants

NVME_PMRCAP_RDS_SHIFT
Shift amount to get the read data support
NVME_PMRCAP_WDS_SHIFT
Shift amount to get the write data support
NVME_PMRCAP_BIR_SHIFT
Shift amount to get the base indicator register
NVME_PMRCAP_PMRTU_SHIFT
Shift amount to get the persistent memory region time units
NVME_PMRCAP_PMRWBM_SHIFT
Shift amount to get the persistent memory region write barrier mechanisms
NVME_PMRCAP_PMRTO_SHIFT
Shift amount to get the persistent memory region timeout
NVME_PMRCAP_CMSS_SHIFT
Shift amount to get the controller memory space supported
NVME_PMRCAP_PMRWMB_SHIFT
Deprecated shift amount to get the persistent memory region write barrier mechanisms
NVME_PMRCAP_RDS_MASK
Mask to get the read data support
NVME_PMRCAP_WDS_MASK
Mask to get the write data support
NVME_PMRCAP_BIR_MASK
Mask to get the base indicator register
NVME_PMRCAP_PMRTU_MASK
Mask to get the persistent memory region time units
NVME_PMRCAP_PMRWBM_MASK
Mask to get the persistent memory region write barrier mechanisms
NVME_PMRCAP_PMRTO_MASK
Mask to get the persistent memory region timeout
NVME_PMRCAP_CMSS_MASK
Mask to get the controller memory space supported
NVME_PMRCAP_PMRWMB_MASK
Deprecated mask to get the persistent memory region write barrier mechanisms
NVME_PMRCAP_PMRTU_500MS
500 milliseconds
NVME_PMRCAP_PMRTU_60S
minutes
enum nvme_pmrcap July 2026