ZYNQ7000芯片Linux环境下网桥测试

ZYNQ7000芯片Linux环境下网桥测试

前置条件

• 具有双网口的ZYNQ7000开发板一块

Kernel配置

defconfig配置修改

CONFIG_XILINX_GMII2RGMII=y
CONFIG_BRIDGE=y

dts配置

aliases {
		ethernet0 = &gem0;
		ethernet1 = &gem1;
		serial0 = &uart0;
		spi0 = &qspi;
		mmc0 = &sdhci0;
		gpio0 = &gpio0;
	};
&gem0 {
	status = "okay";
	max-speed = <1000>;
	phy-mode = "rgmii-id";
	phy-handle = <&ethernet_phy>;
	snps,fixed-burst;
	snps,aal;
	snps,force_sf_dma_mode;

	mdio {
		compatible = "snps,dwmac-mdio";
		#address-cells = <1>;
		#size-cells = <0>;

		ethernet_phy: ethernet_phy@1{
			reg = <1>;
		};
	};
};

&gem1 {
	status = "okay";
	max-speed = <1000>;
	phy-mode = "rgmii-id";
	phy-handle = <&phy>;
	snps,fixed-burst;
	snps,aal;
	snps,force_sf_dma_mode;
	local-mac-address = [00 0a 35 00 01 02];
	mdio {
		compatible = "snps,dwmac-mdio";
		#address-cells = <1>;
		#size-cells = <0>;
		phy: phy@2 {
			reg = <2>;
		};
		gmiitorgmii: gmiitorgmii@8 {
			compatible = "xlnx,gmii-to-rgmii-1.0";
			reg = <8>;
			phy-handle = <&phy>;
		};
	};
};

进入Kernl命令行后使用brctl创建网桥

创建网桥br0

brctl addbr br0

将两个网口加入网桥

brctl addif br0 eth0
brctl addif br0 eth1

启动网桥以及两个网口

ifconfig br0 up
ifconfig eth0 up
ifconfig eth1 up

查看网口状态

ifconfig -a

查看网桥状态

brctl show

或者

ip link show

在window下使用ping命令测试效果

ping -S 192.168.1.12 192.168.1.20 -t -l 1024

在开发板中使用tcpdump工具抓包查看真实转发效果

tcpdump icmp -i br0