libnvme(9) API Manual libnvme(9)

struct nvme_associate_ns_data - Associate Namespace Data Structure

struct nvme_associate_ns_data {
__u8 pad[32];
__le32 ensid;
__u8 ensnqn[256];
__le32 unsid;
__le16 uctrlid;
__u8 unsnqn[256];
__u8 rsvd554[22];
};

Padding (PAD), shall be cleared to 0h
Exported Namespace ID (ENSID) to associate
Exported NVM Subsystem NQN (ENSNQN). Ignored for a memory-based controller, or if ESUBIDV is set.
Underlying Namespace ID (UNSID) to associate with ensid
Underlying Controller ID (UCTRLID). Ignored for a memory-based controller.
Underlying NVM Subsystem NQN (UNSNQN). Ignored for a memory-based controller.
Reserved
struct nvme_associate_ns_data October 2026