Re: [E1000-devel] Port showing link down at random times

[Ronciak, J. <joh...@in...>]

I think there i som confusion here.  Eithe both sides of the link need
to be in auto-neg mode or both sides need to be forced to something like
100M/Full Duplex.  This is by spec.  If one side is forced and the other
auto-neg unpredictable things can happen to the link.

Please try to force both sides to the link to 100/full and see if the
problem goes away.  I'm assuming that you are on a switch and not a hub,
is this correct?  And that it is a 10/100Mbps switch.  Is this also
corrct?

Cheers,
John
-----------------------------------------------------------
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.", Benjamin
Franklin 1755 
 

>-----Original Message-----
>From: e10...@li... 
>[mailto:e10...@li...] On Behalf 
>Of Leigh Sharpe
>Sent: Tuesday, August 26, 2008 4:27 PM
>To: e10...@li...
>Subject: [E1000-devel] Port showing link down at random times
>
>Hi All,
> I'm having a problem with my e1000 cards intermittently shutting down.
>This is happening across multiple cards, on multiple systems. I get the
>following messages in the syslog at the time:
> 
>Aug 26 22:58:36 ElizaQOS kernel: e1000: eth13: e1000_watchdog: NIC Link
>is Down
>
>ethtool and mii-tool both show a different status for the 
>affected port:
>---
>leigh@ElizaQOS:~$ sudo mii-tool -v eth13
>eth13: negotiated 100baseTx-FD flow-control, link ok
>  product info: vendor 00:50:43, model 2 rev 5
>  basic mode:   autonegotiation enabled
>  basic status: autonegotiation complete, link ok
>  capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
>  advertising:  100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
>flow-control
>  link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
>flow-control
>
>leigh@ElizaQOS:~$ sudo ethtool eth13
>Settings for eth13:
>        Supported ports: [ TP ]
>        Supported link modes:   10baseT/Half 10baseT/Full
>                                100baseT/Half 100baseT/Full
>                                1000baseT/Full
>        Supports auto-negotiation: Yes
>        Advertised link modes:  10baseT/Half 10baseT/Full
>                                100baseT/Half 100baseT/Full
>                                1000baseT/Full
>        Advertised auto-negotiation: Yes
>        Speed: Unknown! (65535)
>        Duplex: Unknown! (255)
>        Port: Twisted Pair
>        PHYAD: 0
>        Transceiver: internal
>        Auto-negotiation: on
>        Supports Wake-on: umbg
>        Wake-on: d
>        Current message level: 0x00000007 (7)
>        Link detected: no
>---
> 
>The port can be brought up by issuing this command:
> 
>ethtool -s eth13 speed 100 duplex full autoneg on
>
>which I assume simply restarts autonegotiation.  Turning off 
>autoneg and
>setting the speed/duplex doesn't seem to help.
> 
>This is on a Debian 2.6.18 kernel. lspci and lspci -t attached.
> 
>Any ideas what might be happening? 
> 
> 
> 
>-----------------
>
>leigh@ElizaQOS:~$ lspci
>00:00.0 Host bridge: Intel Corporation Q963/Q965 Memory Controller Hub
>(rev 02)
>00:01.0 PCI bridge: Intel Corporation Q963/Q965 PCI Express Root Port
>(rev 02)
>00:02.0 VGA compatible controller: Intel Corporation Q963/Q965
>Integrated Graphics Controller (rev 02)
>00:03.0 Communication controller: Intel Corporation Q963/Q965 HECI
>Controller (rev 02)
>00:19.0 Ethernet controller: Intel Corporation 82566DM Gigabit Network
>Connection (rev 02)
>00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI
>#4 (rev 02)
>00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI
>#5 (rev 02)
>00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) 
>USB2 EHCI
>#2 (rev 02)
>00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio
>Controller (rev 02)
>00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express
>Port 1 (rev 02)
>00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express
>Port 5 (rev 02)
>00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI
>#1 (rev 02)
>00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI
>#2 (rev 02)
>00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI
>#3 (rev 02)
>00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) 
>USB2 EHCI
>#1 (rev 02)
>00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
>00:1f.0 ISA bridge: Intel Corporation 82801HO (ICH8DO) LPC Interface
>Controller (rev 02)
>00:1f.2 SATA controller: Intel Corporation 82801HB (ICH8) SATA AHCI
>Controller (rev 02)
>00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller
>(rev 02)
>03:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet
>Controller
>04:0c.0 PCI bridge: Pericom Semiconductor Unknown device 01a7
>04:0d.0 PCI bridge: Pericom Semiconductor Unknown device 01a7
>04:0e.0 PCI bridge: Pericom Semiconductor Unknown device 01a7
>04:0f.0 PCI bridge: Pericom Semiconductor Unknown device 01a7
>05:0b.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>05:0b.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>05:0d.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>05:0d.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>06:0b.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>06:0b.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>06:0d.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>06:0d.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>07:0b.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>07:0b.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>07:0d.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>07:0d.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>08:0b.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>08:0b.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>08:0d.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>08:0d.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
>Controller (rev 03)
>leigh@ElizaQOS:~$ lspci -t
>-[0000:00]-+-00.0
>           +-01.0-[0000:01]--
>           +-02.0
>           +-03.0
>           +-19.0
>           +-1a.0
>           +-1a.1
>           +-1a.7
>           +-1b.0
>           +-1c.0-[0000:02]--
>           +-1c.4-[0000:03]----00.0
>           +-1d.0
>           +-1d.1
>           +-1d.2
>           +-1d.7
>           +-1e.0-[0000:04-08]--+-0c.0-[0000:05]--+-0b.0
>           |                    |                 +-0b.1
>           |                    |                 +-0d.0
>           |                    |                 \-0d.1
>           |                    +-0d.0-[0000:06]--+-0b.0
>           |                    |                 +-0b.1
>           |                    |                 +-0d.0
>           |                    |                 \-0d.1
>           |                    +-0e.0-[0000:07]--+-0b.0
>           |                    |                 +-0b.1
>           |                    |                 +-0d.0
>           |                    |                 \-0d.1
>           |                    \-0f.0-[0000:08]--+-0b.0
>           |                                      +-0b.1
>           |                                      +-0d.0
>           |                                      \-0d.1
>           +-1f.0
>           +-1f.2
>           \-1f.3
>leigh@ElizaQOS:~$
>
> 
> 
> 
> 
> 
>Regards,
>             Leigh
> 
>Leigh Sharpe
>Network Systems Engineer
>Pacific Wireless
>Ph +61 3 9584 8966
>Mob 0408 009 502
>Helpdesk 1300 300 616
>email ls...@pa...
><blocked::mailto:ls...@pa...> 
>web www.pacificwireless.com.au
><blocked::http://www.pacificwireless.com.au/> 
> 
>