
* Define SCN_RING_HIWAT and add sc_rbhiwat to scn_softc. When the ringbuffer gets full up to this mark, rts gets asserted (Ian Dall). * Add sc_rx_blocked to scn_softc. This is used to tell scnsoft that rxinterrupts are blocked (Ian Dall).
* Define SCN_RING_HIWAT and add sc_rbhiwat to scn_softc. When the ringbuffer gets full up to this mark, rts gets asserted (Ian Dall). * Add sc_rx_blocked to scn_softc. This is used to tell scnsoft that rxinterrupts are blocked (Ian Dall).