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rk-ethernet

rk-ethernet 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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```
find / -name pinmux-pins
cat pinmux-pins
find / -name clk_summary
cat clk_summary
find / -name regulator_summary
cat regulator_summary

tar cvf dts.tar dts，使用的dts目录打包发过来，指明使用哪个dts
find / -name pinmux-pins  cat pinmux-pins  显示的信息一起打包发过来
cat /sys/kernel/debug/d/clk/clk_summary  显示的信息一起打包发过来
```

开两个终端，一个查看Kconfig，一个在menuconfig上搜索（所有的Kconfig子块可以搜索到），可以很快确定目前的模块驱动

```
一种是我操作ok了你硬件不行产生偏差（主要是25CLK频偏），一种是我操作ok你没反应就像石头一样没有启动（phy没有启动，rest引脚或者vcc或者有些线没有接），一种是我操作有问题比如我被复用，
一种是我操作ok你也ok但是有干扰（走线干扰，delay或者电压比如概率性获取不到ip或者丢包或者断线）

确认mac clk tx clk rx clk mdc clk，再确认复用，gmac奇怪问题比较多是电源的问题，特别是CPU LOGIC电压的问题或者IO驱动强度，配了CRU clk却拿不到，
查看clk_summary没有一个是使能的
PHY的问题主要就是25M晶振，没有贴没有clk给出，txclk是由phy clk给gmac，然后gmac再给出去tx clk，有管脚复用设置phy的时候可能RX clk也不对

总之是gmac操作phy的寄存器（rx clk是操作phy寄存器给出的，mdc clk是gmac给出的【源头CRU 内部clk cpu 25M晶振 或者phy 25M晶振】），

clk数量多了（速率快干扰错），包括sdio phy uart降频 ，减少clk数量，降低看是否排除干扰
```
0、确认一下phy上晶振25M晶振频偏，网线插路由能否获取到IP，如果不能检查一下硬件，如果能用iperf测一下吞吐

1、对于有些差的网络，尤其公司网络，同一个DHCP服务器下面主机过多，有时候会出现，DHCP获取不到IP地址的现象。

```
对于这种问题，处理办法是，把DHCP的超时时间增大。目前的dhcp超时时间是30s，补丁把超时时间增大到90s。 插拔网卡出现概率性性获取不了ip
89785  参考 把超时时间增大到90s.patch
```
2、也测量一下cpu logic 电压 看一下dts上面的PMU的配置 正常是1.05v左右
```
regulators {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <0>;
vdd_logic: regulator@0 {
compatible = "regulator-fixed";
regulator-name = "vdd_logic";
regulator-min-microvolt = <1050000>;
regulator-max-microvolt = <1050000>;
regulator-always-on;
};
};

PMU的电压输出在sys/kernel/debug/regulator/
这里可以手动调试一下

cat /sys/kernel/debug/regulator/vdd_logic/*
cat /sys/kernel/debug/regulator/vdd_log/*

echo 1050000 > /sys/kernel/debug/regulator/vdd_log/voltage

logic电压是根据ddr的频率调整的，当前的ddr频率是多少？切换一下ddr频率看是否有变化

root@rk3399_stbvr:/sys/kernel/debug/clk # cat clk_summary |grep ddr
    clk_pvtm_ddr                          0            0    24000000          0 0  
          pclk_ddr                        1            1   200000000          0 0  
             pclk_ddr_sgrf                0            0   200000000          0 0  
             pclk_ddr_mon                 0            0   200000000          0 0  
          clk_ddrc_gpll_src               0            0   800000000          0 0  
          clk_ddrc_dpll_src               1            1   792000000          0 0  
             sclk_ddrc                    1            1   792000000          0 0  
          clk_ddrc_bpll_src               0            0   408000000          0 0  
          clk_ddrc_lpll_src               0            0   408000000          0 0

ddr 800M,vdd_log为0.9V，arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi里面dmc_opp_table，改800M对应的电压opp-microvolt
         opp-800000000 {
             opp-hz = /bits/ 64 <800000000>;
             opp-microvolt = <900000>;
     
TX上不去是DDR不够，定频到800M，TX就上去了
驱动强度的还是改一下
cat clk_summary |grep ddr
sclk_ddrc就是DDR的频率
cat /sys/kernel/debug/opp/opp_summary
cd /sys/class/devfreq/dmc/
echo userspace > governor
echo 800000000 > userspace/set_freq

ddr频率对以太网有影响，考虑到休眠变频的影响或者本身上行低
&dmc {
        status = "okay";
        center-supply = <&vdd_center>;
        upthreshold = <40>;
        downdifferential = <20>;
        system-status-freq = <
                /*system status         freq(KHz)*/
                SYS_STATUS_NORMAL       800000
                SYS_STATUS_REBOOT       800000
                SYS_STATUS_SUSPEND      800000
                SYS_STATUS_VIDEO_1080P  800000
                SYS_STATUS_VIDEO_4K     800000
                SYS_STATUS_VIDEO_4K_10B 800000
                SYS_STATUS_PERFORMANCE  800000
                SYS_STATUS_BOOST        800000
                SYS_STATUS_DUALVIEW     800000
                SYS_STATUS_ISP          800000
        >;
```

3、上行或者下行带宽比较低，调试相关delay和硬件没有用，和TX RX CLK息息相关
```
这块板子走线有那么长tx_clk 13mA驱动强度不够，软件调整为19mA
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+               pcfg_pull_none_19ma: pcfg-pull-none-19ma {
+                       bias-disable;
+                       drive-strength = <19>;
+               };
                        rgmii_pins: rgmii-pins {
                                rockchip,pins =
                                        /* mac_txclk */
-                                       <3 17 RK_FUNC_1 &pcfg_pull_none_13ma>,
+                                       <3 17 RK_FUNC_1 &pcfg_pull_none_19ma>,
一般设置tx0~3 tx clk tx en 6个脚到19ma
```
4、设置静态
```
ifconfig eth0 up
ifconfig eth0 192.168.1.100 broadcast 192.168.1.255 netmask 255.255.255.0 up
单网卡添加多个IP地址
ifconfig eth0:0 192.168.1.100 netmask 255.255.255.0 up
ifconfig eth0:1 192.168.2.100 netmask 255.255.255.0 up
若转换不了域名  主要是域名问题
echo "nameserver 8.8.8.8" > /etc/resolv.conf
或者
ndc resolver setnetdns eth0 "" 8.8.8.8

用ip route
ip addr add 192.168.1.100/24 dev eth0
ip link set dev eth0 up
echo "nameserver 8.8.8.8" > /etc/resolv.conf或者ndc resolver setnetdns eth0 "" 8.8.8.8 8.8.4.4
ip route add default via 192.168.1.1 dev eth0

网关 网关 网关
和IP 地址卵关系都没有

route -n 
route del default gw 192.168.1.1 dev eth0
route add default gw 192.168.1.1 dev eth0 metric 99

```
5、cat /sys/devices/platform/fe300000.ethernet/net/eth0/carrier
```
拔插网线的前后输入这个命令，看下底层状态是否正确；
平台不同节点路径可能不一样，在sys下面输入find -name "carrier" 没插网线的时候是0 ，插网线的时候是1
```
6、rtl8152有自带驱动的kernel/drivers/net/usb，无法拿到IP 地址，可能是没有MAC 地址的问题，
```
可使用ftp 上的补丁《rtl8152解决MAC 地址为空补丁》
```
7、以太网抓包
```
tcpdump -i eth0 -s 0 -w /data/snf.pcap
tcpdump -i wlan0 -s 0 -w /data/wlan.pcap
，抓p2p，关掉wifi，抓一下正常和异常的log
tcpdump -i any -s 0 -w /data/tcpdump_log.pcap
```
8、过滤
```
EthernetNetworkFactory  /frameworks/opt/net/ethernet/java/com/android/server/ethernet/
ConnectivityService

https://blog.csdn.net/u013686019/article/details/51447129
或者网络优先级更改
```

9、PHY ID 00000000 就要确认一下mdc clk的2.5M以下（可以打上mdc2.5M patch）
```
对照原理图，先确定IOMUX关系是否正确
busybox find /d/pinctrl -name pinmux-pins
cat ./sys/kernel/debug/pinctrl/pinctrl/pinmux-pins

[ 0.668216] eth%d: PHY ID 00000000 at 1 IRQ POLL (stmmac-0:01)

PHY ID不正确，示波器量测MDC是2.5M 及2.5M以下,使用patch使MDC clk降低
```
10、某些交换机上面之后出现不能正常获取到IP地址
```
目前出现一些板卡，接在某些交换机上面之后出现不能正常获取到IP地址，频繁重复获取，有些交换机或者是路由器又是正常，可能跟EEEE功能有关，
打上关闭EEE功能的patch
```

11、cat /d/clk/clk_summary
```
对照原理图，先确定IOMUX关系是否正确，
busybox find /d/pinctrl -name pinmux-pins
cat xxx/xxx/pinmux-pins
```
12、RMII_CLK_CTL配置是低，PHY就会有50M输出，如果是拉高就是我们给PHY时钟

13、3399经常MAC MDC引脚会被复用，测的频率还是TX CLK 125M， RX CLK 25M(异常，导致phy设置异常)，MAC CLK 125M
```
GPIO3B[0]
gslx680: gslx680@40 {
touch-gpio = <&gpio3 RK_PB0 IRQ_TYPE_EDGE_RISING>; 
```
14、
```
ping -s 1024 xx.xx.xx.xx
ping -s 指定 ping包的大小 从 1k 往上加 ，确认ping 包方式是否 在ping的数据包增大到一定程度 也会出问题
```

15、双以太网目前补丁就是eth0用于访问外网，eth1或usb0只能访问局域网
```
给客户建议，设置里面加个切换按钮，设置用哪个网口上网，保存到属性里，然后
EthernetNetworkFactory.java和EthernetNetworkFactoryExt.java两个文件根据属性来切换接口
EthernetNetworkFactory这个文件中的可以访问外网，自行参考和开发需求
```

16、识别网卡是MDC CLK和MDIO两条线，识别不了MDC就没有MDC CLK了，no phy found和硬件关系较大

17、phy_register查看
```
kernel 3.10
find ./ -name phy_reg
cat phy_reg
kernel 4.4
find ./ -name phy_registers
cat phy_registers

```
18、不能自动获取IP的主板，手动设置静态IP能正常上网
```
8201F是百兆的PHY，不走delay节点，看PCB布线RMII线也比较短
示波器看频偏值不准确，要用频率计测试
指定IP后IPERF测吞吐量能到多少？如吞吐量带宽能达到94M左右，硬件测一下RJ45眼图，看电平是否达标，如眼图测试没问题。可能是DHCP服务有问题，另外也可以用“busybox udhcpc -i eth0”或“dhcptool eth0 ”看能否自动获取到IP
```
19、获取IP问题也需要多环境测试，也有是本身环境的问题
```
可能每个工位都强制设了静态IP的原因 所以才会有时能获取，有时候获取不了是因为IP冲突，单独试了WIFI路由器出来的每个主板都是可以
```
20、概率性获取不到ip（表现为dhcp timeout）
```
第一种是开关机，解决：确认reset引脚先拉低延时再拉高延时
第二种是不断插拔，解决：确认一下logic电压，tx rx delay修改吞吐测试，io电流加大，dhcp延时加一下，或者是变压器硬件的原因
第三种是休眠唤醒之后或者长时间概率性，解决：disable eee patch可能是phy的原因节能标准不一致，确认logic电压，驱动唤醒函数，还不行ifconfig eth0 down/up 补丁

```
21、唤醒后获取不了ip
```
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index a534672d0955..e60d34e294ad 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3142,6 +3142,10 @@ int stmmac_resume(struct device *dev)
if (priv->phydev)
phy_start(priv->phydev);

+ stmmac_release(ndev);
+ msleep(100);
+ stmmac_open(ndev);
+
return 0;
}
EXPORT_SYMBOL_GPL(stmmac_resume);
```
22、用stmicro驱动时修改最大速率限制
```
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -229,7 +229,7 @@
        pinctrl-0 = <&rgmii_pins>;
        tx_delay = <0x30>;
        rx_delay = <0x10>;
-       max-speed = <100>;
+       max-speed = <1000>;
        status = "okay";
 };
```
23、uboot以太网
```
u-boot/drivers/net
designware.o  gmac_rockchip.o

CONFIG_DM_ETH=y
CONFIG_ETH_DESIGNWARE=y
CONFIG_GMAC_ROCKCHIP=y
CONFIG_DM_REGULATOR=y
CONFIG_DM_GPIO=y

读寄存器
md.l 0xFF4902D0 0x10
md.l 0xFF490460 0x10
md.l 0xFE010264 0x10

写寄存器
mw.l 0xFF490460 0xffff0020
mw.l 0xFE010040 0xffff2222
mw.l 0xFE01003c 0xffff2222

通过和kernel阶段寄存器的对比，发现是GRF_SOC_CON1寄存器中的值设置有差异，
修改了rk3288_gmac_set_to_rmii接口，目前是可以正常ping通目标设备了

uboot下的phy驱动，发现uboot/drivers/net/phy/realtek.c中有相关8211F LED的配置，原始代码如下：

static int rtl8211f_config(struct phy_device *phydev)
{       
        u16 reg;

phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);

phy_write(phydev, MDIO_DEVAD_NONE,
                  MIIM_RTL8211F_PAGE_SELECT, 0xd08);
        reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x11);

/* enable TX-delay for rgmii-id and rgmii-txid, otherwise disable it */
        if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
            phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)

```

24、关于休眠唤醒
```
休眠一下子就被唤醒了，断开负载发现和还是会出这种问题
亲测，蓝牙电源关掉，就可以了，蓝牙电源打开，PMEB唤醒引脚接地也可以进入休眠，说明不是蓝牙唤醒的
亲测，有些硬件蓝牙电源关掉也没有用，这就是个大坑，就是休眠模块的问题，IOMUX确认过的，IO domain在休眠也打开关闭都已经测试
波形也抓了没有问题，IO电流还是系统供电问题可能有关，就是休眠模块的坑

所以其它模块（蓝牙rfkill ethernet），方法都是去申请一个脚，然后去添加唤醒函数
disable_irq(irq->irq);
ret = enable_irq_wake(irq->irq);
然后在休眠的时候enable_irq

唤不醒先断开负载，对比一下IO DOMIN和 VDDIO是否匹配，不行也休眠模块的坑
```

25、推流卡顿
```
ethtool -k eth0 查看一下
关掉TX的时候的checksum，关闭硬件校验
ethtool -K eth0 tx-checksum-ipv4 off
ethtool -K eth0 tx-checksum-ipv6 off
关闭tso
ethtool ‐K eth0 tx‐tcp‐segmentation off
ethtool ‐K eth0 tx‐tcp6‐segmentation off

--- a/drivers/net/ethernet/rockchip/gmac/stmmac_main.c
+++ b/drivers/net/ethernet/rockchip/gmac/stmmac_main.c
@@ -3151,7 +3151,7 @@ struct stmmac_priv *stmmac_dvr_probe(struct device *device,

ndev->netdev_ops = &stmmac_netdev_ops;

-       ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+       ndev->hw_features = NETIF_F_SG | NETIF_F_IPV6_CSUM |
                            NETIF_F_RXCSUM;
        ndev->features |= ndev->hw_features | NETIF_F_HIGHDMA;
        ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
```
26、delay确认
```
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -418,6 +419,8 @@ static void rk3288_set_to_rgmii(struct rk_priv_data *bsp_priv,
                return;
        }

+       printk("%s tx_delay=%x rx_delay=%x\n",__func__,tx_delay,rx_delay);
+       
        regmap_write(bsp_priv->grf, RK3288_GRF_SOC_CON1,
                     RK3288_GMAC_PHY_INTF_SEL_RGMII |
                     RK3288_GMAC_RMII_MODE_CLR);
@@ -1570,6 +1573,15 @@ static int rk_gmac_resume(struct device *dev)
```
27、以太网MAC地址ieee申请
```
一般卖到国外才需要申请
http://blog.sina.com.cn/s/blog_7d02693c0102v77o.html
```
28、以太网probe
```
4.4
stmmac_pltfr_probe

3.10
rk_gmac_probe
```
29、endpoint
```
iperf -c 192.168.32.252 -i 1 -t 99 -d
-d 同时进行双向传输测试,双向能同时到800M以上, 总吞吐量是两条流相加，有可能跟工具有关系。Marvell1512 导致16%CPU挂满，很少见
用endpoint iocharoit 测试
```
30、interrupts,CPU资源不够导致iperf测试吞吐低
```
cat /proc/interrupts
          CPU0       CPU1       CPU2       CPU3       CPU4         CPU5
24:      84760          0          0          0        0              0     GICv3  44 Level     eth0
echo 4 > /proc/irq/24/smp_affinity_list(换挂到CPU4)
24:      84760          0          0          0       393058          0     GICv3  44 Level     eth0

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index abde6c5..791c32c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2833,8 +2833,10 @@ int stmmac_dvr_probe(struct device *device,
 		     struct stmmac_resources *res)
 {
 	int ret = 0;
+	int cpu_id =5;
 	struct net_device *ndev = NULL;
 	struct stmmac_priv *priv;
+	struct cpumask cpumask;
 
 	ndev = alloc_etherdev(sizeof(struct stmmac_priv));
 	if (!ndev)
@@ -2855,7 +2857,11 @@ int stmmac_dvr_probe(struct device *device,
 	priv->dev->irq = res->irq;
 	priv->wol_irq = res->wol_irq;
 	priv->lpi_irq = res->lpi_irq;
-
+	
+	cpumask_clear(&cpumask);
+	cpumask_set_cpu(cpu_id,&cpumask);
+	irq_set_affinity(priv->dev->irq,&cpumask);
+	
 	if (res->mac)
 		memcpy(priv->dev->dev_addr, res->mac, ETH_ALEN);
 
 
nice -n -20 iperf -c 192.168.30.100 -i 1 -t 5 -w 1M -d -P8

应该是这应用问题，我以前在屏蔽房用ixhhariot 跑是正常的， 电脑是XP系统， ixcharoit 是6.7版本， 板子上endpoint.apk version 7.30 SP1 build 32.

不记得是不是这个endpoint

使用：
3399以太网用ixCharoit 跑双流.zip
endpoint.apk

可以直接测好丢过去，硬要他们自己解自己系统资源问题，就怪他们

切换CPU core 中断验证。
例子
cat /proc/interrupts 查看相应中断号
echo 2 > /proc/irq/51/smp_affinity_list //把中断放到cpu2上执行
cat /proc/interrupts //查看记数

或者将eth0 的中断平均到各个CPU
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 79b60aa..1e0fa6c 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -421,6 +421,12 @@ static void __init gic_dist_init(void)
 	affinity = gic_mpidr_to_affinity(cpu_logical_map(smp_processor_id()));
 	for (i = 32; i < gic_data.irq_nr; i++)
 		gic_write_irouter(affinity, base + GICD_IROUTER + i * 8);
+
+	/* irq 44 routed to all cpus  */
+	affinity = affinity | 0x80000000;
+	gic_write_irouter(affinity, base + GICD_IROUTER + 44 * 8);
+	/* Decrease irq 44 priority value from default 0x0a to 0x09 */
+	writel_relaxed(0xa0a0a090, base + GICD_IPRIORITYR + rounddown(44, 4));
 }
 
 static int gic_populate_rdist(void)
@@ -658,7 +664,8 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 	reg = gic_dist_base(d) + GICD_IROUTER + (gic_irq(d) * 8);
 	val = gic_mpidr_to_affinity(cpu_logical_map(cpu));
 
-	gic_write_irouter(val, reg);
+	if (gic_irq(d) != 44)
+		gic_write_irouter(val, reg);
 
 	/*
 	 * If the interrupt was enabled, enabled it again. Otherwise,

```
31、delay的时间概念
```
具体的意义是相位差，推迟步进单位是2ns，最新回环补丁文档有介绍

可以理解为写delay让txc(clk)和txd(data)相位不断的靠近，具体效果还是需要用工具测量吞吐
```
32、添加以太网选项
```
redmine 249892提到本条redmine需要mid的以太网设置补丁，请参考附件10.0_ethernet_mid_settings.zip。
其中，device\rockchip\rk3399\下的宏开启补丁，如果是其他产品，请根据对应产品在device\rockchip\XXX\目录打上
补丁完全打上后，可以在settings > network&intent 看到 ethernet选项
```
33、PX30以太网配置
```
 &gmac {
     phy-supply = <&vcc_phy>;
     assigned-clocks = <&cru SCLK_GMAC>;
     assigned-clock-parents = <&gmac_clkin>;
     clock_in_out = "input";
     pinctrl-names = "default";
     pinctrl-0 = <&rmii_pins &mac_refclk>;
     snps,reset-gpio = <&gpio2 13 GPIO_ACTIVE_LOW>;
     snps,reset-active-low;
     snps,reset-delays-us = <0 50000 50000>;
     status = "okay";
 };
```
34、phy休眠
```
二级休眠是ping不通
如果phy也进行休眠，没有封包过来。主控是不会被唤醒的，也ping不通。目前这种情况属于正常。 我们服务器上是有个magic packet 唤醒主控的补丁，要用工具发魔术包去唤醒
```
35、以太网反复up down
```
mac clk不精
```
36、NAT转发
```
如果你是wlan0 上外网，eth1通过NAT共享wlan0，只需要加enableNat 就可以了，当然首先要保证pc 与3399 eth1可以ping 通。 不需要用脚本，直接看日志即可。

private void startDhcpServer() {
                if (DBG) Log.d(TAG, "startDhcpServer");
                String startIp = SystemProperties.get("persist.dhcpserver.start", "192.168.1.150");
                String endIp = SystemProperties.get("persist.dhcpserver.end", "192.168.1.250");
                String[] dhcpRange = {startIp, endIp};
                try {
                        mNMService.tetherInterface(mIface);
                        mNMService.startTethering(dhcpRange);
+            mNMService.enableNat("eth1","wlan0");
```

37、静态IP设置后，没插网线控制phy启动状态carrier为0
```
hcq@ubuntu:~/33997.1/kernel/drivers/net/ethernet/stmicro/stmmac$ git diff stmmac_main.c
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 58a490e..b14791b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1855,7 +1855,7 @@ static int stmmac_open(struct net_device *dev)

napi_enable(&priv->napi);
        netif_start_queue(dev);
-
+       netif_carrier_off(dev);
 #ifdef CONFIG_DWMAC_RK_AUTO_DELAYLINE
        if (!priv->delayline_scanned) {
```

38、修改phy id
```
启动的第一步会去读phy id，可能有概率性获取不到的，先设置看是否有其它问题
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -325,6 +325,9 @@ static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
 {
        int phy_reg;

+    *phy_id = 0x11223344;
+    return 0;
+
        if (is_c45)
                return get_phy_c45_ids(bus, addr, phy_id, c45_ids);

&mdio1 {
        rgmii_phy1: phy@0 {
-               compatible = "ethernet-phy-ieee802.3-c22";
+//             compatible = "ethernet-phy-ieee802.3-c22";
+               compatible = "ethernet-phy-id1234.d400", "ethernet-phy-ieee802.3-c22";
                reg = <0x0>;
        };
 };

或者在属性上面设置             
```

39、
```
单纯跑iperf , 查看一下CPU 频率
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq

多线程-P 4 确认吞吐有到940， 并查询CPU 频率。
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq

下面几个调频策略都试一下。
echo interactive > /sys/devices/platform/dmc/devfreq/dmc/governor
echo ondemand> /sys/devices/platform/dmc/devfreq/dmc/governor
echo performance> /sys/devices/platform/dmc/devfreq/dmc/governor

DDR测试
cat /sys/devices/platform/dmc/devfreq/dmc/available_frequencies
echo userspace > /sys/devices/platform/dmc/devfreq/dmc/governor
echo 800000000 > /sys/devices/platform/dmc/devfreq/dmc/min_freq
cat /sys/devices/platform/dmc/devfreq/dmc/cur_freq
cat /sys/devices/platform/dmc/devfreq/dmc/load

CPU
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo   1512000 >  /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq

echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

调整 协议相关参数， tcp相关参数改大，再把iperf的window size设为2MByte后TX单线程就能跑到平均380M~392Mbps，较之前差不都有50-70M收益
echo 1048576 > /proc/sys/net/core/wmem_max
echo 1048576 > /proc/sys/net/core/rmem_max
echo "4096 1048576 1048576" > /proc/sys/net/ipv4/tcp_rmem
echo "4096 1048576 1048576" > /proc/sys/net/ipv4/tcp_wmem
echo 4193104 > /proc/sys/net/ipv4/tcp_limit_output_bytes
echo 1048576 > /proc/sys/net/ipv4/udp_rmem_min
echo 1048576 > /proc/sys/net/ipv4/udp_wmem_min

```
40
```
android7.1开始的kernel取消了之前版本的/proc/last_kmsg的节点，因此如果想要查看上一次的kernel log，可以在dts里面添加以下节点信息查看

diff --git a/arch/arm64/boot/dts/rockchip/rk3368-p9.dts b/arch/arm64/boot/dts/rockchip/rk3368-p9.dts
index bc0e0e2..7650d5f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368-p9.dts
++ b/arch/arm64/boot/dts/rockchip/rk3368-p9.dts
@ -70,6 +70,20 @
};
};
ramoops_mem: ramoops_mem {
+ reg = <0x0 0x110000 0x0 0xf0000>;
+ reg-names = "ramoops_mem";
+ };

ramoops {
+ compatible = "ramoops";
+ record-size = <0x0 0x20000>;
+ console-size = <0x0 0x80000>;
+ ftrace-size = <0x0 0x00000>;
+ pmsg-size = <0x0 0x50000>;
+ memory-region = <&ramoops_mem>;
+ };
+
sdio_pwrseq: sdio-pwrseq {
compatible = "mmc-pwrseq-simple";
clocks = <&rk818 1>;
130|root@rk3399:/sys/fs/pstore # ls
cd /sys/fs/pstore
dmesg-ramoops-0 上次内核panic后保存的log。
pmsg-ramoops-0 上次用户空间的log，android的log
ftrace-ramoops-0 打印某个时间段内的function trace
console-ramoops-0 last_log 上次启动的kernel log，但只保存了优先级比默认log level 高的log。

看是否有最后挂掉的日志。
```

41、io指令没有怎么办
```
加CONFIG_DEVMEM=y
CONFIG_DEVTMPFS_MOUNT=y

然后编译
```
42、rv1126 io 配成不匹配1.8V后恢复3.3要做的修改，参考重启慧居的doc
```
当改为3.3V后看到配驱动强度为LEVEL0/LEVEL1时，MAC_CLK的占空比已失真，需要配到LEVEL2才正常，软件默认为LEVEL1驱动强度。
```
43、IP175拔掉网线之后，以太网的图标还在
```
将CONFIG_IP175D_PHY 关闭
```
44、udp或tcp吞吐丢包
```
hcq@ubuntu101:~/RK3399/RK3399_LINUX_SDK_Release/kernel/drivers/net/ethernet/stmicro/stmmac$ git diff .
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index b3b8d87..df62d72 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -73,7 +73,7 @@ MODULE_PARM_DESC(phyaddr, "Physical device address");
 
 #define STMMAC_TX_THRESH       (DMA_TX_SIZE / 4)
 
-static int flow_ctrl = FLOW_OFF;
+static int flow_ctrl = FLOW_AUTO;
 module_param(flow_ctrl, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(flow_ctrl, "Flow control ability [on/off]");
 
@@ -723,7 +723,7 @@ static void stmmac_adjust_link(struct net_device *dev)
                        priv->oldduplex = phydev->duplex;
                }
                /* Flow Control operation */
-               if (phydev->pause)
+               //if (phydev->pause)
                        priv->hw->mac->flow_ctrl(priv->hw, phydev->duplex,
                                                 fc, pause_time);
 
@@ -827,6 +827,7 @@ static int stmmac_init_phy(struct net_device *dev)
        priv->oldlink = 0;
        priv->speed = 0;
        priv->oldduplex = -1;
+       priv->flow_ctrl = FLOW_AUTO
 
        if (priv->plat->phy_node) {
        
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 6288288..b9489ea 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2959,8 +2959,7 @@ int stmmac_dvr_probe(struct device *device,

ndev->netdev_ops = &stmmac_netdev_ops;

-       ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
-                           NETIF_F_RXCSUM;
+       ndev->hw_features = NETIF_F_SG ;
        ndev->features |= ndev->hw_features | NETIF_F_HIGHDMA;
        ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
 #ifdef STMMAC_VLAN_TAG_USED

--- a/drivers/net/ethernet/rockchip/gmac/stmmac_main.c
+++ b/drivers/net/ethernet/rockchip/gmac/stmmac_main.c
@@ -3151,7 +3151,7 @@ struct stmmac_priv *stmmac_dvr_probe(struct device *device,

ndev->netdev_ops = &stmmac_netdev_ops;

45、休眠给电
```
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-evb-rev3.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-evb-rev3.dtsi
index be7c60b..d15b088 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-evb-rev3.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-evb-rev3.dtsi
@@ -315,7 +315,7 @@
 				regulator-boot-on;
 				regulator-name = "vcc3v3_s0";
 				regulator-state-mem {
-					regulator-off-in-suspend;
+					regulator-on-in-suspend;
 				};
 			};
 		};
```
----------------------------------------------------------------
46、更新3568sdk出现获取不到ip问题
```
selinux的问题
adb shell setenforce 0
```
47、3568 4.19的内核没有对phy地址自动扫描功能造成读不到phy
```
    rgmii_phy0: phy@0 {
        compatible = "ethernet-phy-ieee802.3-c22";
 -       reg = <0x0>;
 +       reg = <0x1>;
    };
};

rgmii_phy0: phy@0 {
        compatible = "ethernet-phy-ieee802.3-c22";
 -       reg = <0x1>;
 +       reg = <0x0>;
    };
};

phy地址设置0x0或者0x1都测试一下

```
48、关闭pause帧
``` 
ethtool -A eth0 tx off
ethtool -A eth0 rx off
ethtool -a eth0
Pause parameters for eth0:
Autonegotiate: on
RX: on
TX: on
```
49、概率DMA错误
```
kernel$ git diff
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
index 0e8937c..f1c6c97 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
@@ -39,7 +39,7 @@ static int dwmac1000_dma_init(void __iomem *ioaddr, int pbl, int fb, int mb,
        /* DMA SW reset */
        value |= DMA_BUS_MODE_SFT_RESET;
        writel(value, ioaddr + DMA_BUS_MODE);
-       limit = 10;
+       limit = 100;
        while (limit--) {
                if (!(readl(ioaddr + DMA_BUS_MODE) & DMA_BUS_MODE_SFT_RESET))
                        break;
```
50、关掉IPV6
```
把IPV6关闭验证看
diff --git a/services/core/java/com/android/server/NetworkManagementService.java b/services/core/java/com/android/server/NetworkManagementService.java
index 6d6fd84..20ed306 100644
--- a/services/core/java/com/android/server/NetworkManagementService.java
+++ b/services/core/java/com/android/server/NetworkManagementService.java
@@ -1086,10 +1086,12 @@ public class NetworkManagementService extends INetworkManagementService.Stub
     @Override
     public void setInterfaceIpv6PrivacyExtensions(String iface, boolean enable) {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
-        try {
+        enable= 0;
+       try {
             mConnector.execute(
                     "interface", "ipv6privacyextensions", iface, enable ? "enable" : "disable");
-        } catch (NativeDaemonConnectorException e) {
+         Slog.d(TAG, "hcq test force ipv6privacyextensions disable");
+         } catch (NativeDaemonConnectorException e) {
             throw e.rethrowAsParcelableException();
         }
     }
@@ -1110,7 +1112,8 @@ public class NetworkManagementService extends INetworkManagementService.Stub
     public void enableIpv6(String iface) {
         mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
         try {
-            mConnector.execute("interface", "ipv6", iface, "enable");
+           Slog.d(TAG, "hcq test force disableIpv6");
+            mConnector.execute("interface", "ipv6", iface, "disable");
         } catch (NativeDaemonConnectorException e) {
             throw e.rethrowAsParcelableException();
         }
```
51、概率性掉线问题
```
这个很多其它的干扰
遇到的
比如：是buildroot中的一个应用导致的，把相关应用关闭后，掉速问题没出现
比如：有加2N7002隔离电源。最近买的一批2N7002换了品牌，抗干扰能力弱一点，开起开关的layout宇MDC走线近了一点。所以会偶尔出现问题。我们把开起驱动的电阻改小了，加强了驱动能力。就不会出现问题。
```
52、更换eth注册顺序
```
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 7d8ef2d..5562915 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -469,6 +469,7 @@
                        power-domains = <&power RK3399_PD_USB3>;
                        resets = <&cru SRST_A_USB3_OTG0>;
                        reset-names = "usb3-otg";
+                       snps,dw3_controller_address = "fe800000";
                        snps,dis_enblslpm_quirk;
                        snps,dis-u2-freeclk-exists-quirk;
                        snps,dis_u2_susphy_quirk;
@@ -503,6 +504,7 @@
                        power-domains = <&power RK3399_PD_USB3>;
                        resets = <&cru SRST_A_USB3_OTG1>;
                        reset-names = "usb3-otg";
+                       snps,dw3_controller_address = "fe900000";
                        snps,dis_enblslpm_quirk;
                        snps,dis-u2-freeclk-exists-quirk;
                        snps,dis_u2_susphy_quirk;

hcq@ubuntu101:~/3399/kernel$ git diff drivers/usb/
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index bc0a111..cc2499af 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -40,7 +40,7 @@
 #include "debug.h"

#define DWC3_DEFAULT_AUTOSUSPEND_DELAY 5000 /* ms */
-
+const char *dw3_controller_address = NULL;
 /**
  * dwc3_get_dr_mode - Validates and sets dr_mode
  * @dwc: pointer to our context structure
@@ -1568,7 +1568,7 @@ static int dwc3_probe(struct platform_device *pdev)
        int                     ret;

void __iomem            *regs;
-
+
        dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
        if (!dwc)
                return -ENOMEM;
@@ -1630,8 +1630,12 @@ static int dwc3_probe(struct platform_device *pdev)
                return -ENODEV;
        }

+       ret = of_property_read_string(dev->of_node, "snps,dw3_controller_address", &dw3_controller_address);
+       if (ret)
+               dev_err(dev, "Can not read property: snps,dw3_controller_address.\n");
+
        dwc3_get_properties(dwc);
-
+
        if (dev->of_node) {
                dwc->num_clks = ARRAY_SIZE(dwc3_core_clks);

hcq@ubuntu101:~/3399/kernel$ git diff drivers/net/usb/
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index ae631d9..aeee7b1 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -703,7 +703,7 @@ enum rtl8152_flags {

#define MCU_TYPE_PLA                   0x0100
 #define MCU_TYPE_USB                   0x0000
-
+extern const char *dw3_controller_address;
 struct tally_counter {
        __le64  tx_packets;
        __le64  rx_packets;
@@ -6839,6 +6839,16 @@ static int rtl8152_probe(struct usb_interface *intf,

usb_set_intfdata(intf, tp);
        netif_napi_add(netdev, &tp->napi, r8152_poll, RTL8152_NAPI_WEIGHT);
+       if(dw3_controller_address != NULL){
+
+        printk("%s dw3_controller_address=%s\n",__func__,dw3_controller_address);
+
+       if (!strcmp(dw3_controller_address, "fe800000"))
+               strcpy(netdev->name,"eth0");
+
+       if (!strcmp(dw3_controller_address, "fe900000"))
+           strcpy(netdev->name,"eth1");
+       }

ret = register_netdev(netdev);
        if (ret != 0) {
```

53、测UDP
```
DDR测试
cat /sys/devices/platform/dmc/devfreq/dmc/available_frequencies
echo userspace > /sys/devices/platform/dmc/devfreq/dmc/governor
echo 528000000 > /sys/devices/platform/dmc/devfreq/dmc/min_freq
cat /sys/devices/platform/dmc/devfreq/dmc/cur_freq
cat /sys/devices/platform/dmc/devfreq/dmc/load

CPU
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo   1416000 >  /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq

UDP测试
iperf -u -s -b 1600M -i 1
iperf -u -c 192.168.1.5 -b 1600M -i 1 -t 20 -w 512K

iperf3 -s -i 1
iperf3 -u -c 192.168.1.5 -b 1000M -i 1 -t 20 -l 8000

while true; do cat /proc/interrupts | grep eth0 ; echo -e "\n" ; sleep 5; done

diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index c3c0c8ca082c..e6fa3b1b2b92 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -261,7 +261,7 @@ struct stmmac_safety_stats {
 #define STMMAC_COAL_TX_TIMER   1000
 #define STMMAC_MAX_COAL_TX_TICK        100000
 #define STMMAC_TX_MAX_FRAMES   256
-#define STMMAC_TX_FRAMES       1
+#define STMMAC_TX_FRAMES       25diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index c3c0c8ca082c..e6fa3b1b2b92 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -261,7 +261,7 @@ struct stmmac_safety_stats {
 #define STMMAC_COAL_TX_TIMER   1000
 #define STMMAC_MAX_COAL_TX_TICK        100000
 #define STMMAC_TX_MAX_FRAMES   256
-#define STMMAC_TX_FRAMES       1
+#define STMMAC_TX_FRAMES       25
```

```
ethtool -s eth0 speed 100 duplex full autoneg off

--------------rtl8211------------------

phy   mac 
xtal1  mac_clk&clkout（一起连，外部不接自激电路就直接mac_clk给，dts上设置output直接给xtal1，百兆网是25M，千兆网是125M）
tx0 - tx0
tx1 - tx1
tx2 - tx2
tx3 - tx3
txen- txen
txclk-txclk
rx0 - rx0 
rx1 - rx1
rx2 - rx2 
rx3 - rx3 
rxen-rxen 
rxclk-rxclk 
rxdv-rxdv 
mdio-mdio 
mdc-mdc 
GPIO - phy rst
 
 注意每根线都得连上，少连一根都会找不到phy设备，还有rst也要看看有没有使能，如果吞吐有问题再调tx rx delay
 
 ---------------lan8720A---------------------
 
 LED1_AD1 接下拉的时候 INTB才会输出CLK(接25M晶振，内部倍频 INTB输出50M)

DNP（do not populate）不焊接的意思，LED0_AD0接下拉是设置芯片地址为0

phy   mac 
xtal1  mac_clk
tx0 - tx0  
tx1 - tx1 
//tx2 - tx2 
//tx3 - tx3 
txen- txen 
//txclk-txclk 
rx0 - rx0 
rx1 - rx1 
//rx2 - rx2 
//rx3 - rx3 
//rxen-rxen 
//rxclk-rxclk 
rxdv-rxdv 
rxer-rxer
mdio-mdio 
mdc-mdc 
gpio - phy rst

```

rk-ethernet

rk-ethernet 최신버젼 다운로드

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rk-ethernet

rk-ethernet 최신버젼 다운로드

오늘의 추천 프로젝트

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