CONST64U
#define QP_MAX_QUEUE_SIZE_ARCH CONST64U(0xffffffffffffffff)
#define QP_MAX_QUEUE_SIZE_ARCH CONST64U(0xffffffff)
qp_atomic_write_offset(&q_header->producer_tail, CONST64U(0));
qp_atomic_write_offset(&q_header->consumer_head, CONST64U(0));