RK: rk3288 以太网mac 地址 生成

一.先上一份日志 

1.1.eth_mac_idb

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lowmemorykiller: lowmem_shrink: convert oom_adj to oom_score_adj: lowmemorykiller: oom_adj 0 => oom_score_adj 0 lowmemorykiller: oom_adj 1 => oom_score_adj 58 lowmemorykiller: oom_adj 2 => oom_score_adj 117 lowmemorykiller: oom_adj 3 => oom_score_adj 176 lowmemorykiller: oom_adj 9 => oom_score_adj 529 lowmemorykiller: oom_adj 15 => oom_score_adj 1000 acc_open acc_release phy_power_on: enable = 1 11111111  err = 0 Read the Ethernet MAC address from IDB:e2:76:1e:08:31:07 eth0: device MAC address e2:76:1e:08:31:07 phy_rtl8201f_led_fixup in libphy: stmmac: probed eth0: PHY ID 001cc816 at 0 IRQ 0 (stmmac-0:00) active

1.2.etherm_addr_from_cpuid

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lowmemorykiller: lowmem_shrink: convert oom_adj to oom_score_adj: lowmemorykiller: oom_adj 0 => oom_score_adj 0 lowmemorykiller: oom_adj 1 => oom_score_adj 58 lowmemorykiller: oom_adj 2 => oom_score_adj 117 lowmemorykiller: oom_adj 3 => oom_score_adj 176 lowmemorykiller: oom_adj 9 => oom_score_adj 529 lowmemorykiller: oom_adj 15 => oom_score_adj 1000 acc_open acc_release phy_power_on: enable = 1 11111111  err = 0 Read the Ethernet MAC address from IDB:00:00:00:00:00:00 etherm_addr_from_cpuid system_serial_low=75cef2b1,system_serial_high=4666831a the vendor enable_mac=0x1 use mac from vendor! the vendor mac e2:76:1e:08:31:23 eth0: device MAC address e2:76:1e:08:31:23 phy_rtl8201f_led_fixup in libphy: stmmac: probed eth0: PHY ID 001cc816 at 0 IRQ 0 (stmmac-0:00) active

 二.分析一下源码　　驱动读取MAC address流程　　　　

stmmac_check_ether_addr
           eth_mac_idb
           etherm_addr_from_cpuid
           eth_hw_addr_random　　　　

2.1.Z:\ZK_R32X_RK3288_ANDROID5.1\ZK_R32X_RK3288_ANDROID5.1\kernel\drivers\net\ethernet\rockchip\gmac\stmmac_main.c

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static void stmmac_check_ether_addr(struct stmmac_priv *priv) {     if (!is_valid_ether_addr(priv->dev->dev_addr)) {         priv->hw->mac->get_umac_addr((void __iomem *)                          priv->dev->base_addr,                          priv->dev->dev_addr, 0);         if (!is_valid_ether_addr(priv->dev->dev_addr))<br>　　　　　　　　　　　　　　　//rk 烧写工具             eth_mac_idb(priv->dev->dev_addr);         if (!is_valid_ether_addr(priv->dev->dev_addr))<br>　　　　　　　　　　　　　　//cpuid 计算 lan Mac 地址             etherm_addr_from_cpuid(priv->dev->dev_addr);         if(!is_valid_ether_addr(priv->dev->dev_addr))<br>　　　　　　　　　　　　　　//随机生成             eth_hw_addr_random(priv->dev);     }     pr_warn("%s: device MAC address %pM\n", priv->dev->name,         priv->dev->dev_addr); }

2.2. Z:\ZK_R32X_RK3288_ANDROID5.1\ZK_R32X_RK3288_ANDROID5.1\kernel\drivers\net\ethernet\rockchip\eth_mac.c　

2.2.1.eth_mac_idb　 

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int eth_mac_idb(u8 *eth_mac) {     int i;     int err = 0;     memset(eth_mac, 0, 6);     err = eth_mac_read_from_IDB(eth_mac);     if (err)         return -1;     printk("Read the Ethernet MAC address from IDB:");     for (i = 0; i < 5; i++)         printk("%2.2x:", eth_mac[i]);     printk("%2.2x\n", eth_mac[i]);       return 0; }

2.2.2.etherm_addr_from_cpuid md5 加密

 // Apply md5 process to system_serial_mac