struct nvme_mi_msg_hdr - General MI message header.

Wire format shared by both request and response messages, per NVMe-MI section 3.1. This is used for all message types, MI and Admin. August 2025 struct nvme_mi_msg_hdr libnvme(2)

type MCTP message type, will always be NVME_MI_MSGTYPE_NVME nmp NVMe-MI message parameters (including MI message type) meb Management Endpoint Buffer flag; unused for libnvme-mi implementation rsvd0 currently reserved

struct nvme_mi_msg_hdr - General MI message header.

struct nvme_mi_msg_hdr { __u8type;__u8nmp;__u8meb;__u8rsvd0; };