nvme_cmd_format_mset - Man Page

enum nvme_cmd_format_mset {
   NVME_FORMAT_MSET_SEPARATE ,

   NVME_FORMAT_MSET_EXTENDED

};

NVME_FORMAT_MSET_SEPARATE

indicates that the metadata is transferred as part of a separate buffer.

NVME_FORMAT_MSET_EXTENDED

indicates that the metadata is transferred as part of an extended data LBA.