nvme_host_mem_buf_attrs - Man Page

struct nvme_host_mem_buf_attrs {
   __le32 hsize;
   __le32 hmdlal;
   __le32 hmdlau;
   __le32 hmdlec;
   __u8 rsvd16[4080];
};

hsize

Host Memory Buffer Size

hmdlal

Host Memory Descriptor List Lower Address

hmdlau

Host Memory Descriptor List Upper Address

hmdlec

Host Memory Descriptor List Entry Count

rsvd16

Reserved