|
|
| Zeile 1: |
Zeile 1: |
| − | =Merker für mich= | + | ==Merker für mich== |
| | mesh knoten | | mesh knoten |
| | mesh-service-bridge | | mesh-service-bridge |
| | inet-gw , mesh-hub | | inet-gw , mesh-hub |
| | | | |
| − | =eth0-bug-loco-xw= | + | ==eth0-bug-loco-xw== |
| | backup of https://pad.hack-hro.de/p/eth0-bug-loco-xw | | backup of https://pad.hack-hro.de/p/eth0-bug-loco-xw |
| | | | |
| − | ==inhalt== | + | ==Links (ausgelagert)inhalt== |
| − | linux-ar71xx_generic/linux-3.10.49/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
| + | * [[Benutzer:Leo/eth0-bug-analyse]] |
| − | | + | |
| − | | + | |
| − | <pre>
| + | |
| − | AR9342 - Ist der SoC der Loco XWs
| + | |
| − | | + | |
| − | AR8030 - PHY chip - - http://qca.qualcomm.com/wp-content/uploads/2013/11/AR8030.pdf
| + | |
| − | | + | |
| − | AG71XX - ethernet driver
| + | |
| − |
| + | |
| − | AR7240 SoC - Woi kommt das her?
| + | |
| − | | + | |
| − | Wo wird UP/DOWN von Ethernet behandelt?
| + | |
| − | ag71xx_main.c
| + | |
| − | - ag71xx_fast_reset()
| + | |
| − | - ag71xx_link_adjust()
| + | |
| − | hier wird auch fast_reset aufgerufen
| + | |
| − | | + | |
| − | ag71xx_phy.c - Was machen Funktionen?
| + | |
| − | - ag71xx_phy_link_adjust()
| + | |
| − | ruft auch ag71xx_link_adjust() auf
| + | |
| − | - ag71xx_phy_connect()
| + | |
| − | | + | |
| − | | + | |
| − | Implementierung:
| + | |
| − | in ag71xx_phy.c (detecktiere von UP zu DOWN)
| + | |
| − | + if (status_change) {
| + | |
| − | + pr_info("Debug: phy state change. ag->link=%d \n", ag->link);
| + | |
| − | + pr_info("Debug: phy state change. phydev->link=%d \n ", phydev->link);
| + | |
| − | if ()
| + | |
| − | ag71xx_link_adjust(ag);
| + | |
| − | }
| + | |
| − | | + | |
| − | -------
| + | |
| − | und in ag71xx_main.c
| + | |
| − | +#include <linux/of_gpio.h>
| + | |
| − | +#include <linux/gpio.h>
| + | |
| − | +#define GPIO_SET 0x1804000C
| + | |
| − | +#define GPIO_CLEAR 0x18040010
| + | |
| − | | + | |
| − | void ag71xx_link_adjust()
| + | |
| − | ...
| + | |
| − | if (!ag->link) {
| + | |
| − | | + | |
| − | ag71xx_hw_stop(ag);
| + | |
| − | | + | |
| − | netif_carrier_off(ag->dev);
| + | |
| − | | + | |
| − | -+if (netif_msg_link(ag)) {
| + | |
| − | | + | |
| − | pr_info("%s: link down\n", ag->dev->name);
| + | |
| − | | + | |
| − | | + | |
| − | +pr_info("AR803x PHY hangs? Reset it now! Interface maybe down but should not be in defect state ...\n");
| + | |
| − | | + | |
| − | +gpiod_set_value(GPIO_CLEAR, (1<<0));
| + | |
| − | | + | |
| − | +msleep(2);
| + | |
| − | | + | |
| − | +gpiod_set_value(GPIO_SET, (1<<0));
| + | |
| − | | + | |
| − | +msleep(2);
| + | |
| − | | + | |
| − | }
| + | |
| − | | + | |
| − | return;
| + | |
| − | | + | |
| − | }
| + | |
| − | | + | |
| − | Was muss implementiert werden? (allgemein)
| + | |
| − | https://dev.openwrt.org/ticket/19085#comment:14
| + | |
| − | | + | |
| − | Checken wie folgendes realisiert werden kann (Interface reset)
| + | |
| − | #define GPIO_SET 0x1804000C
| + | |
| − | #define GPIO_CLEAR 0x18040010
| + | |
| − |
| + | |
| − | athr_reg_wr(GPIO_CLEAR,(1<<0));
| + | |
| − | mdelay(2);
| + | |
| − | athr_reg_wr(GPIO_SET,(1<<0));
| + | |
| − | mdelay(2);
| + | |
| − | ----------
| + | |
| − | von http://permalink.gmane.org/gmane.linux.network/318765
| + | |
| − | | + | |
| − | +#include <linux/of_gpio.h>
| + | |
| − | +#include <linux/gpio/consumer.h>
| + | |
| − | +static void at803x_adjust_state(struct phy_device *phydev)
| + | |
| − | +{
| + | |
| − | + struct at803x_priv *priv = phydev->priv;
| + | |
| − | + if (phydev->drv->phy_id == ATH8030_PHY_ID) {
| + | |
| − | + if (phydev->state == PHY_NOLINK) {
| + | |
| − | + if (priv->gpiod_reset && !priv->phy_reset) {
| + | |
| − | + struct at803x_context context;
| + | |
| − | +
| + | |
| − | + at803x_context_save(phydev, &context);
| + | |
| − | +
| + | |
| − | + gpiod_set_value(priv->gpiod_reset, 0);
| + | |
| − | + msleep(1);
| + | |
| − | + gpiod_set_value(priv->gpiod_reset, 1);
| + | |
| − | + msleep(1);
| + | |
| − | +
| + | |
| − | + at803x_context_restore(phydev, &context);
| + | |
| − | +
| + | |
| − | + dev_dbg(&phydev->dev, "%s(): phy was reset\n",
| + | |
| − | + __func__);
| + | |
| − | + priv->phy_reset = true;
| + | |
| − | + }
| + | |
| − | + } else {
| + | |
| − | + priv->phy_reset = false;
| + | |
| − | + }
| + | |
| − | + }
| + | |
| − | | + | |
| − | ===============
| + | |
| − | | + | |
| − | enum phy_state {
| + | |
| − | PHY_DOWN=0,
| + | |
| − | PHY_STARTING,
| + | |
| − | PHY_READY,
| + | |
| − | PHY_PENDING,
| + | |
| − | PHY_UP,
| + | |
| − | PHY_AN,
| + | |
| − | PHY_RUNNING,
| + | |
| − | PHY_NOLINK,
| + | |
| − | PHY_FORCING,
| + | |
| − | PHY_CHANGELINK,
| + | |
| − | PHY_HALTED,
| + | |
| − | PHY_RESUMING
| + | |
| − | };
| + | |
| − | | + | |
| − | ===========================
| + | |
| − | Log nach Anwendung des obigen Patches, zeigt leider zwei Dinge:
| + | |
| − | 1. Schwenk von UP zu DOWN wurde nicht erkannt.
| + | |
| − | 2. Einfach so GPIO zu schreiben, bringt Kernelfehler (naja, war fast zu erwarten. Aber es war einen Versuch wert)
| + | |
| − | | + | |
| − | Log nach dem normalen Booten:
| + | |
| − | root@AP-2-30:~# dmesg | grep -i phy
| + | |
| − | [ 0.000000] Determined physical RAM map: | + | |
| − | [ 0.600000] libphy: ag71xx_mdio: probed | + | |
| − | [ 1.150000] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.0:01 [uid=004dd023, driver=Generic PHY]
| + | |
| − | [ 6.170000] Debug: phy state change. ag->link=1 (Opennet 4)
| + | |
| − | [ 6.170000] Debug: phy state change. phydev->link=1 (Opennet 4)
| + | |
| − | [ 21.730000] AR803x PHY hangs? Reset it now! Interface maybe down but should not be in defect state ...(Opennet Hack4)
| + | |
| − | [ 21.730000] [<800b4bfc>] ag71xx_phy_stop+0x78/0x9c
| + | |
| − | [ 21.990000] [<800b4bfc>] ag71xx_phy_stop+0x78/0x9c
| + | |
| − | [ 25.570000] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
| + | |
| − | [ 25.650000] ieee80211 phy0: Atheros AR9340 Rev:0 mem=0xb8100000, irq=47
| + | |
| − | [ 43.430000] Debug: phy state change. ag->link=1 (Opennet 4)
| + | |
| − | [ 43.430000] Debug: phy state change. phydev->link=1 (Opennet 4)
| + | |
| − | | + | |
| − | [69453.360000] Debug: phy state change. ag->link=1 (Opennet 4)
| + | |
| − | [69453.360000] Debug: phy state change. phydev->link=1 (Opennet 4)
| + | |
| − | [69453.360000]
| + | |
| − | [69453.360000] eth0: link up (10Mbps/Half duplex)
| + | |
| − | [69455.370000] Debug: phy state change. ag->link=0 (Opennet 4)
| + | |
| − | [69455.370000] Debug: phy state change. phydev->link=0 (Opennet 4)
| + | |
| − | [69455.370000]
| + | |
| − | [69455.370000] eth0: link down
| + | |
| − | [69455.370000] AR803x PHY hangs? Reset it now! Interface maybe down but should not be in defect state ...(Opennet Hack4)
| + | |
| − | [69455.370000] ------------[ cut here ]------------
| + | |
| − | [69455.370000] WARNING: at drivers/gpio/gpiolib.c:126 gpio_to_desc+0x2c/0x54()
| + | |
| − | [69455.370000] invalid GPIO 402915344
| + | |
| − | [69455.370000] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pptp pppox ppp_mppe ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw iptable_mangle iptable_filter ipt_REJECT ip_tables crc_ccitt compat ip6t_REJECT ip6table_raw ip6table_mangle ip6table_filter ip6_tables x_tables nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 ip_gre gre ip_tunnel tun ipv6 sha1_generic ecb arc4 crypto_blkcipher crypto_hash
| + | |
| − | [69455.370000] CPU: 0 PID: 232 Comm: kworker/0:2 Tainted: G W 3.10.49 #4
| + | |
| − | [69455.370000] Workqueue: events phy_state_machine
| + | |
| − | [69455.370000] Stack : 839da380 802d4c44 80148110 0000007e 802e4278 83926c00 83926d74 8030f8b0
| + | |
| − | [69455.370000] 00000008 8027b720 000000e8 801e38ac 83904a08 83926c00 802e2250 83aa7ce4
| + | |
| − | [69455.370000] 83aa7ce4 8027b720 00000003 801e33d0 802e4278 00000000 00000005 802144b0
| + | |
| − | [69455.370000] 00000000 00000000 00000000 00000000 00000000 00000000 6576656e 74730000
| + | |
| − | [69455.370000] 00000000 00000000 00000000 00000000 83816a00 81082300 801da094 83aa7c90
| + | |
| − | [69455.370000] ...
| + | |
| − | [69455.370000] Call Trace:
| + | |
| − | [69455.370000] [<8022441c>] show_stack+0x48/0x70
| + | |
| − | [69455.370000] [<8028aca4>] warn_slowpath_common+0x78/0xa8
| + | |
| − | [69455.370000] [<8028ad00>] warn_slowpath_fmt+0x2c/0x38
| + | |
| − | [69455.370000] [<80148110>] gpio_to_desc+0x2c/0x54
| + | |
| − | [69455.370000] [<8008fef8>] __gpio_set_value+0x1c/0xe0
| + | |
| − | [69455.370000] [<800b3b84>] ag71xx_link_adjust+0x84/0x39c
| + | |
| − | [69455.370000] [<800b4b10>] ag71xx_phy_link_adjust+0xa0/0xc8
| + | |
| − | [69455.370000] [<801da334>] phy_state_machine+0x2a0/0x484
| + | |
| − | [69455.370000] [<801ebe5c>] process_one_work+0x228/0x364
| + | |
| − | [69455.370000] [<8028c054>] worker_thread+0x234/0x388
| + | |
| − | [69455.370000] [<8018c7a4>] kthread+0xb0/0xb8
| + | |
| − | [69455.370000] [<80060878>] ret_from_kernel_thread+0x14/0x1c
| + | |
| − | [69455.370000]
| + | |
| − | [69455.370000] ---[ end trace 9841a412d51fe0b2 ]---
| + | |
| − | [69455.590000] ------------[ cut here ]------------
| + | |
| − | [69455.590000] WARNING: at drivers/gpio/gpiolib.c:126 gpio_to_desc+0x2c/0x54()
| + | |
| − | [69455.600000] invalid GPIO 402915340
| + | |
| − | [69455.600000] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pptp pppox ppp_mppe ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw iptable_mangle iptable_filter ipt_REJECT ip_tables crc_ccitt compat ip6t_REJECT ip6table_raw ip6table_mangle ip6table_filter ip6_tables x_tables nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 ip_gre gre ip_tunnel tun ipv6 sha1_generic ecb arc4 crypto_blkcipher crypto_hash
| + | |
| − | [69455.660000] CPU: 0 PID: 232 Comm: kworker/0:2 Tainted: G W 3.10.49 #4
| + | |
| − | [69455.670000] Workqueue: events phy_state_machine/home/leo/trunk/5-package-repo-change/on_firmware/openwrt/build_dir/targ~ibc-0.9.33.2/linux-ar71xx_generic/linux-3.18.11/arch/mips/ath79/common.c
| + | |
| − | [69455.680000] Stack : 839da380 802d4c44 80148110 0000007e 802e4278 83926c00 83926d74 8030f8b0
| + | |
| − | [69455.680000] 00000008 8027b720 000000e8 801e38ac 83904a08 83926c00 802e2250 83aa7ce4
| + | |
| − | [69455.680000] 83aa7ce4 8027b720 00000003 801e33d0 802e4278 00000000 00000005 802144b0
| + | |
| − | [69455.680000] 00000000 00000000 00000000 00000000 00000000 00000000 6576656e 74730000
| + | |
| − | [69455.680000] 00000000 00000000 00000000 00000000 83816a00 81082300 801da094 83aa7c90
| + | |
| − | [69455.680000] ...
| + | |
| − | [69455.710000] Call Trace:
| + | |
| − | [69455.720000] [<8022441c>] show_stack+0x48/0x70
| + | |
| − | [69455.720000] [<8028aca4>] warn_slowpath_common+0x78/0xa8
| + | |
| − | [69455.730000] [<8028ad00>] warn_slowpath_fmt+0x2c/0x38
| + | |
| − | [69455.730000] [<80148110>] gpio_to_desc+0x2c/0x54
| + | |
| − | [69455.730000] [<8008fef8>] __gpio_set_value+0x1c/0xe0
| + | |
| − | [69455.740000] [<800b3b98>] ag71xx_link_adjust+0x98/0x39c
| + | |
| − | [69455.750000] [<800b4b10>] ag71xx_phy_link_adjust+0xa0/0xc8
| + | |
| − | [69455.750000] [<801da334>] phy_state_machine+0x2a0/0x484
| + | |
| − | [69455.760000] [<801ebe5c>] process_one_work+0x228/0x364
| + | |
| − | [69455.760000] [<8028c054>] worker_thread+0x234/0x388
| + | |
| − | [69455.770000] [<8018c7a4>] kthread+0xb0/0xb8
| + | |
| − | [69455.770000] [<80060878>] ret_from_kernel_thread+0x14/0x1c
| + | |
| − | [69455.780000]
| + | |
| − | [69455.780000] ---[ end trace 9841a412d51fe0b3 ]---
| + | |
| − | [69455.790000] br-lan: port 1(eth0) entered disabled state
| + | |
| − | [71876.510000] br-lan: port 1(eth0) entered disabled state
| + | |
| − | [71885.020000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
| + | |
| − | | + | |
| − | | + | |
| − | =============================
| + | |
| − | | + | |
| − | Versuch: Reset bei jedem up/down machen oder zumindest bei jeden Reset des Interfaces.
| + | |
| − | | + | |
| − | Fragen: In welche Situationen wird interface Reset gemacht. Das durch Debug Meldungen in Funktionen ermitteln.
| + | |
| − | | + | |
| − | Frage: In welche Funktion den Reset machen?
| + | |
| − | - evtl. in /home/leo/trunk/5-package-repo-change/on_firmware/openwrt/build_dir/targ~ibc-0.9.33.2/linux-ar71xx_generic/linux-3.18.11/arch/mips/ath79/common.c
| + | |
| − | | + | |
| − | void ath79_device_reset_clear(u32 mask)
| + | |
| − | | + | |
| − | diese Funktion wird in der ag71xx...main.c - ag71xx_hw_init() aufgerufen.
| + | |
| − | | + | |
| − | In der ag71xx_hw_init() gibt es auch ein Reset-Bit (reset_mask).
| + | |
| − | | + | |
| − | | + | |
| − | | + | |
| − | | + | |
| − | gpio = devm_gpiod_get_index(dev, name, index);
| + | |
| − | res = gpiod_direction_output(gpio, !value);
| + | |
| − | devm_gpiod_put(dev, gpio);
| + | |
| − | gpiod_set_value_cansleep(gpio, value);
| + | |
| − | | + | |
| − | einige Beschreibungen zu GPIO : linux-ar71xx_generic/linux-3.18.11/Documentation/gpio/consumer.txt
| + | |
| − | | + | |
| − | | + | |
| − | ===============================
| + | |
| − | | + | |
| − | ag71xx_phy.c
| + | |
| − | - ag71xx_phy_link_adjust()
| + | |
| − | -- vor phydev->link
| + | |
| − | int id1 = phy_read( phydev, 2 )
| + | |
| − | int id2 = phy_read( phydev, 3 )
| + | |
| − | printk ("hack id=%04x %04x", id1, id2); /* sollte "004d d023" sein, bis der bug auftritt */
| + | |
| − |
| + | |
| − | | + | |
| − | ======================
| + | |
| − | ag71xx_phy.c
| + | |
| − | - ag71xx_phy_link_adjust()
| + | |
| − | | + | |
| − | spin_lock_irqsave(&ag->lock, flags);
| + | |
| − |
| + | |
| − | int id1 = phy_read( phydev, 2 );
| + | |
| − | int id2 = phy_read( phydev, 3 );
| + | |
| − | printk("Opennet Hack09: id=%04x %04x",id1, id2); /* sollte "004d d023" sein, bis der bug auftritt */
| + | |
| − |
| + | |
| − | if (phydev->link) {
| + | |
| − | | + | |
| − | - ag71xx_main.c
| + | |
| − | | + | |
| − | <------><------>pr_info("%s: link up (%sMbps/%s duplex) OpennetHack09\n",
| + | |
| − | | + | |
| − | ========================
| + | |
| − | leo@minato:~/trunk/eth0-bug-trunk/on_firmware/openwrt/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/linux-3.18.14/drivers/net/ethernet/atheros/ag71xx$ cp ag71xx_phy.c.patched ~
| + | |
| − | | + | |
| − | </pre>
| + | |
