RX_IBUF_OVERFLOWED
if (ISSET(sc->sc_rx_flags, RX_IBUF_OVERFLOWED)) {
CLR(sc->sc_rx_flags, RX_IBUF_OVERFLOWED);
SET(sc->sc_rx_flags, RX_IBUF_OVERFLOWED);
SET(zst->zst_rx_flags, RX_IBUF_OVERFLOWED);
if (ISSET(zst->zst_rx_flags, RX_IBUF_OVERFLOWED)) {
CLR(zst->zst_rx_flags, RX_IBUF_OVERFLOWED);
SET(zst->zst_rx_flags, RX_IBUF_OVERFLOWED);
if (ISSET(zst->zst_rx_flags, RX_IBUF_OVERFLOWED)) {
CLR(zst->zst_rx_flags, RX_IBUF_OVERFLOWED);