nvme_resv_register_args - Man Page

struct nvme_resv_register_args {
   __u64 crkey;
   __u64 nrkey;
   __u32 *result;
   int args_size;
   int fd;
   __u32 timeout;
   __u32 nsid;
   enum nvme_resv_rrega rrega;
   enum nvme_resv_cptpl cptpl;
   bool iekey;
};

crkey

The current reservation key associated with the host

nrkey

The new reservation key to be register if action is register or replace

result

The command completion result from CQE dword0

args_size

Size of struct nvme_resv_register_args

fd

File descriptor of nvme device

timeout

Timeout in ms

nsid

Namespace identifier

rrega

The registration action, see enum nvme_resv_rrega

cptpl

Change persist through power loss, see enum nvme_resv_cptpl

iekey

Set to ignore the existing key