LIO_SET_RING_RX
case LIO_SET_RING_RX:
if (arg2 == LIO_SET_RING_RX && rx_count != rx_count_old)
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, lio, LIO_SET_RING_RX,
CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, lio, LIO_SET_RING_RX,
case LIO_SET_RING_RX: