GMAC_CHAN_RX_BASE_ADDR_HI
dwqe_write(sc, GMAC_CHAN_RX_BASE_ADDR_HI(0), 0);
dwqe_write(sc, GMAC_CHAN_RX_BASE_ADDR_HI(0), DWQE_DMA_DVA(sc->sc_rxring) >> 32);