LIO_SET_RING_TX
case LIO_SET_RING_TX:
if (arg2 == LIO_SET_RING_TX && tx_count != tx_count_old)
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, lio, LIO_SET_RING_TX,
CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, lio, LIO_SET_RING_TX,
case LIO_SET_RING_TX: