myx_rx_fill
if (myx_rx_fill(sc, &sc->sc_rx_ring[MYX_RXSMALL]) != 0)
if (myx_rx_fill(sc, &sc->sc_rx_ring[MYX_RXBIG]) != 0)
myx_rx_fill(sc, mrr);
myx_rx_fill(sc, mrr);
int myx_rx_fill(struct myx_softc *, struct myx_rx_ring *);