RING_FREE_REQ_RING_TYPE_NQ
RING_FREE_REQ_RING_TYPE_NQ,
type = RING_FREE_REQ_RING_TYPE_NQ;
#define RING_FREE_REQ_RING_TYPE_LAST RING_FREE_REQ_RING_TYPE_NQ
#define RING_FREE_REQ_RING_TYPE_LAST RING_FREE_REQ_RING_TYPE_NQ