enum nvme_id_ns_dlfeat - This field indicates information about features that affect deallocating logical

NVME_NS_DLFEAT_RB Mask to get the value of the read behavior NVME_NS_DLFEAT_RB_NR Read behvaior is not reported NVME_NS_DLFEAT_RB_ALL_0S A deallocated logical block returns all bytes cleared to 0h. NVME_NS_DLFEAT_RB_ALL_FS A deallocated logical block returns all bytes set to FFh. NVME_NS_DLFEAT_WRITE_ZEROES If set, indicates that the controller supports the Deallocate bit in the Write Zeroes command for this namespace. NVME_NS_DLFEAT_CRC_GUARD If set, indicates that the Guard field for deallocated logical blocks that contain protection information is set to the CRC for the value read from the deallocated logical block and its metadata May 2025 enum nvme_id_ns_dlfeat libnvme(2)

enum nvme_id_ns_dlfeat - This field indicates information about features that affect deallocating logical blocks for this namespace.

enum nvme_id_ns_dlfeat { NVME_NS_DLFEAT_RB , NVME_NS_DLFEAT_RB_NR , NVME_NS_DLFEAT_RB_ALL_0S , NVME_NS_DLFEAT_RB_ALL_FS , NVME_NS_DLFEAT_WRITE_ZEROES , NVME_NS_DLFEAT_CRC_GUARD };