NETCP_MAX_FRAME_SIZE
ndev->max_mtu = NETCP_MAX_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN);
if (max_rx_len > NETCP_MAX_FRAME_SIZE)
max_rx_len = NETCP_MAX_FRAME_SIZE;
writel(NETCP_MAX_FRAME_SIZE, GBE_REG_ADDR(priv, host_port_regs,
gbe_dev->rx_packet_max = NETCP_MAX_FRAME_SIZE;