nvme_lbaf - Man Page

struct nvme_lbaf {
   __le16 ms;
   __u8 ds;
   __u8 rp;
};

ms

Metadata Size indicates the number of metadata bytes provided per LBA based on the LBA Data Size indicated.

ds

LBA Data Size indicates the LBA data size supported, reported as a power of two.

rp

Relative Performance, see enum nvme_lbaf_rp.