NVME_OPC_WRITE
NVME_OPC_WRITE, io_flags, 0, 0);
NVME_OPC_WRITE, io_flags, apptag_mask, apptag);
NVME_OPC_WRITE, io_flags, 0, 0);
case NVME_OPC_WRITE:
{ NVME_OPC_WRITE, "WRITE" },