RxConfig
outl(rx_config, ioaddr + RxConfig);
outl(rx_config, ioaddr + RxConfig);
rtl8169_rx_config | rx_mode | (RTL_R32(RxConfig) &
RTL_W32(RxConfig, tmp);
i = rtl8169_rx_config | (RTL_R32(RxConfig) &
RTL_W32(RxConfig, i);
outl(rtl8139_rx_config | rx_mode, nic->ioaddr + RxConfig);
nic->ioaddr + RxConfig); /* accept no frames yet! */
outl(rtl8139_rx_config, nic->ioaddr + RxConfig);