Ubiquiti loco xw eth0 bug: Unterschied zwischen den Versionen
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Leo (Diskussion | Beiträge) →Find a way to detect hang of eth0: more... |
Leo (Diskussion | Beiträge) →Steps for building workaround: More tries |
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===Find a way to detect hang of eth0=== |
===Find a way to detect hang of eth0=== |
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====Try 1==== |
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In general there are two places where uid of PHY is printed. |
In general there are two places where uid of PHY is printed. |
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[155923.380000] br-lan: port 1(eth0) entered disabled state |
[155923.380000] br-lan: port 1(eth0) entered disabled state |
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====Try 2==== |
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Next try: Use another patch from Till... |
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...to write ... read ID was ffffff..... |
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====Try 3 - use get_phy_id()==== |
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patch from Till |
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--- trunk/eth-bug-oni-trunk/on_firmware/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/linux-3. |
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10.49/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c.orig 2015-04-21 18:23:56.000000000 +0200 |
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+++ trunk/eth-bug-oni-trunk/on_firmware/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/linux-3. |
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10.49/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c 2015-04-28 13:21:56.884431730 +0200 |
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@@ -533,10 +533,16 @@ |
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void ag71xx_link_adjust(struct ag71xx *ag) |
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{ |
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struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); |
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+ struct mii_bus *mii = ag->mii_bus; |
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u32 cfg2; |
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u32 ifctl; |
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u32 fifo5; |
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u32 fifo3; |
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+ u32 phy_id; |
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+ int phy_ret; |
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+ |
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+ phy_ret = get_phy_id(mii, 0, &phy_id); |
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+ pr_info("%s: PHY ID is %08x (ret=%d) (unschoener Opennet-Hack v3)\n", ag->dev->name, phy_id, phy_ret); |
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if (!ag->link) { |
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ag71xx_hw_stop(ag); |
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The function get_phy_id() needs to be exported... |
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===Find a way to reset eth0=== |
===Find a way to reset eth0=== |
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Version vom 10. Mai 2015, 07:24 Uhr
Bug description
Some Ubiquiti loco xw have a hardware bug which results in an interface shutdown with now possibility to bring the interface without reboot. More details, see https://dev.openwrt.org/ticket/19085
Steps for building workaround
Find a way to detect hang of eth0
Try 1
In general there are two places where uid of PHY is printed.
1. ag71xx_phy.c
function: static int ag71xx_phy_connect_multi(struct ag71xx *ag)
....
DBG("%s: PHY found at %s, uid=%08x\n",
dev_name(dev),
dev_name(&ag->mii_bus->phy_map[phy_addr]->dev),
ag->mii_bus->phy_map[phy_addr]->phy_id);
dev_info(dev, "connected to PHY at %s [uid=%08x, driver=%s]\n",
dev_name(&phydev->dev), phydev->phy_id, phydev->drv->name);
2. ag71xx_main.c
void ag71xx_link_adjust(struct ag71xx *ag)
....
struct device *dev = &ag->pdev->dev;
struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
struct phy_device *phydev = NULL;
int phy_addr;
int ret = 0;
for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
if (!(pdata->phy_mask & (1 << phy_addr)))
continue;
if (ag->mii_bus->phy_map[phy_addr] == NULL)
continue;
DBG("%s: PHY found at %s, uid=%08x\n",
dev_name(dev),
dev_name(&ag->mii_bus->phy_map[phy_addr]->dev),
ag->mii_bus->phy_map[phy_addr]->phy_id);
if (phydev == NULL)
phydev = ag->mii_bus->phy_map[phy_addr];
}
dev_info(dev, "connected to PHY at %s [uid=%08x, driver=%s]\n",
dev_name(&phydev->dev), phydev->phy_id, phydev->drv->name);
ID can be read in ag71xx_link_adjust() in file ag71xx_main.c. See http://pastebin.com/0ze9iFcb for an example. But the ID is not changing when eth0 hangs. The output when it hangs is:
[155921.360000] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.0:01 [uid=004dd023, driver=Generic PHY] (Opennet-Info1) [155921.360000] eth0: link up (10Mbps/Half duplex) [155923.370000] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.0:01 [uid=004dd023, driver=Generic PHY] (Opennet-Info1) [155923.370000] eth0: link down [155923.380000] br-lan: port 1(eth0) entered disabled state
Try 2
...to write ... read ID was ffffff.....
Try 3 - use get_phy_id()
patch from Till
--- trunk/eth-bug-oni-trunk/on_firmware/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/linux-3.
10.49/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c.orig 2015-04-21 18:23:56.000000000 +0200
+++ trunk/eth-bug-oni-trunk/on_firmware/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/linux-3.
10.49/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c 2015-04-28 13:21:56.884431730 +0200
@@ -533,10 +533,16 @@
void ag71xx_link_adjust(struct ag71xx *ag)
{
struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+ struct mii_bus *mii = ag->mii_bus;
u32 cfg2;
u32 ifctl;
u32 fifo5;
u32 fifo3;
+ u32 phy_id;
+ int phy_ret;
+
+ phy_ret = get_phy_id(mii, 0, &phy_id);
+ pr_info("%s: PHY ID is %08x (ret=%d) (unschoener Opennet-Hack v3)\n", ag->dev->name, phy_id, phy_ret);
if (!ag->link) {
ag71xx_hw_stop(ag);
The function get_phy_id() needs to be exported...
Find a way to reset eth0
...TODO...