libnvme(9)                        API Manual                        libnvme(9)

NAME
       enum nvme_flbas - This field indicates the formatted LBA size

SYNOPSIS
       enum nvme_flbas {
           NVME_FLBAS_LOWER_SHIFT ,
           NVME_FLBAS_META_EXT_SHIFT ,
           NVME_FLBAS_HIGHER_SHIFT ,
           NVME_FLBAS_LOWER_MASK ,
           NVME_FLBAS_META_EXT_MASK ,
           NVME_FLBAS_HIGHER_MASK

       };

Constants
       NVME_FLBAS_LOWER_SHIFT
                   Shift amount to get the format index least significant 4
                   bits

       NVME_FLBAS_META_EXT_SHIFT
                   Shift amount to get the metadata transferred

       NVME_FLBAS_HIGHER_SHIFT
                   Shift amount to get the format index most significant 2
                   bits

       NVME_FLBAS_LOWER_MASK
                   Mask to get the format index least significant 4 bits

       NVME_FLBAS_META_EXT_MASK
                   Mask to get the metadata transferred

       NVME_FLBAS_HIGHER_MASK
                   Mask to get the format index most significant 2 bits

October 2026                    enum nvme_flbas                     libnvme(9)