>>>> Hi >>>> >>>> We have a powerpc (8548) based board. running eldk4.1. the board has >>>> three ethernet ports using Gainfair ethernet controller v1.2. >>>> >>>> If the board powers up with any network cable plugged in, that specific >>>> network is accessible. >>>> if the board powers up without network cables connected and a cable is >>>> plugged in, the network does not become active. >>>> The kernal makes a log entry stating that the phy is up when the cable >>>> is plugged in - but the interface is not pingable >>>> Running ifdown and ifup manually does not result in a pingable interface. >>>> Neither does running /etc/init.d/network restart >>>> >>>> can anyone help me pls. >>>> >>>> >>>> >>> Check the statistics counters to see if you are getting any bad >>> packets, or to see if you are getting interrupts. Several people have >>> reported that their PHYs have powerdown issues, though I wouldn't >>> expect the PHY to report the link as up, then. Make sure that your >>> dts specifies the correct PHY address for the connected PHY. >>> >>> What happens if you start up with the PHY connected, bring up the >>> interface, and *then* disconnect and reconnect the cable (after a >>> delay)? >>> >>> >> Hi >> >> I have checked the counters in both ifconfig and with ethtool. both show >> TX counts but no RX count and no errors >> ethtool reports that the link is detected. >> The phy addresses are correct (ethtool and kernel log shows the >> exspected addresses) >> I have found that the networking scripts are not called (ifup or down) >> when a cable is pluged or unplugged. >> I also found that udev is not in my current linux platform - can this >> contribute to the problem? >> >> To rule out the phys. I powered on the system with all network cables >> plugged in. ping all three to confirm that they work. i then issue a >> reset signal (hardware routed) to the phys. when the phys reappear im >> still able to ping all three interfaces. >> >> The log file entries for unplugging and connecting the cable are : >> (logged by /driver/phy/phy.c ) >> Oct 15 14:36:56 equus user.info kernel: PHY: 0:00 - Link is >> Down >> Oct 15 14:36:59 equus user.info kernel: PHY: 0:00 - Link is Up - 100/Full >> what is the sequence of events that should follow? >> >> Another test i tried, powered the system up with no cables plugged in >> and "ONBOOT=no" in ifcgf-eth sctipts. I then manually run the ifup >> scripts one by one. then plug in the three network cables. when i ping >> the three interfaces and ping targets on the three networks i find that >> one interface is pingable, one is not and one returns "ping: sendto: >> Network is unreachable" - these results were reproducible about 25% of >> attempts but varied according to order in with cables were plugged in. >> >> I would appreciate any help. >> thanks pieter >> >> > hi > > I did some more digging and testing today. To recap the problem: When i > power on the system with network cables plugged in, the interface is > pingable. If the system powers up without network cables plugged in, > ifconfig reports tat all interfaces are up and running. but when > connecting the network cables none of the interfaces are pingable (even > after running ifdown and ifup scripts for the interfaces. ) > > I think the problem lies some ware in that both ifconfig and ethtool > reports the link as being up even though the system was powered up > without network cables plugged in. > > Ifconfigs output: > SDH-25108> > ifconfig > > > eth0 Link encap:Ethernet HWaddr > 00:50:C2:52:51:08 > > > inet addr:10.0.0.200 Bcast:10.0.0.255 > Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 > Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 > frame:0 > TX packets:394 errors:0 dropped:0 overruns:0 > carrier:0 > collisions:0 > txqueuelen:1000 > > > RX bytes:0 (0.0 b) TX bytes:16548 (16.1 > KiB) > Base > address:0xe000 > > > > > > eth1 Link encap:Ethernet HWaddr > 00:50:C2:52:51:09 > > > inet addr:172.16.63.237 Bcast:172.16.63.255 > Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 > Metric:1 > RX packets:8676 errors:0 dropped:0 overruns:0 > frame:0 > TX packets:149 errors:0 dropped:0 overruns:0 > carrier:0 > collisions:0 > txqueuelen:1000 > > > RX bytes:942270 (920.1 KiB) TX bytes:10268 (10.0 > KiB) > > > > eth2 Link encap:Ethernet HWaddr > 00:50:C2:52:51:0A > > > inet addr:20.0.0.200 Bcast:20.0.0.255 > Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 > Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 > frame:0 > TX packets:4 errors:0 dropped:0 overruns:0 > carrier:0 > collisions:0 > txqueuelen:1000 > > > RX bytes:0 (0.0 b) TX bytes:168 (168.0 > b) > Base > address:0x2000 > > > > > > lo Link encap:Local > Loopback > > > inet addr:127.0.0.1 > Mask:255.0.0.0 > > > UP LOOPBACK RUNNING MTU:16436 > Metric:1 > > RX packets:3733 errors:0 dropped:0 overruns:0 > frame:0 > TX packets:3733 errors:0 dropped:0 overruns:0 > carrier:0 > collisions:0 > txqueuelen:0 > > > RX bytes:674220 (658.4 KiB) TX bytes:674220 (658.4 KiB) > > ethtools output: > SDH-25108> ethtool > eth0 > > > Settings for > eth0: > > > Supported ports: [ TP AUI BNC MII FIBRE > ] > Supported link modes: 10baseT/Half > 10baseT/Full > 100baseT/Half > 100baseT/Full > 1000baseT/Half > 1000baseT/Full > Supports auto-negotiation: > Yes > > > Advertised link modes: 10baseT/Half > 10baseT/Full > 100baseT/Half > 100baseT/Full > 1000baseT/Half > 1000baseT/Full > Advertised auto-negotiation: > Yes > > > Speed: > 1000Mb/s > > > Duplex: > Half > > > Port: > MII > > > PHYAD: > 0 > > > Transceiver: > external > > > Auto-negotiation: > off > > > Current message level: 0x0000003f > (63) > > Link detected: yes > > If I then plug in the cables and unplug them again the link status goes > down. When plugging in the cables again link status is detected again, > but none of teh interfaces are pingable - even after trying ifdown and up. > Hi, I just wanted to report that the networking problem has been solved by moving to linux 2.6.24.
pieter
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