e1000 : link down issues

e1000 : link down issues

[castet.matthieu]

Hi,

I got a 82566DM e1000 network controller [1] on my motherboard, and most of the
time the link go down when doing dhcp. [2]

ifconfig eth0 up -> link become up
dhclient eth0 -> some packet are transmited and received and the link become
down.



I sometimes got e1000_reset: Hardware Error.

This happen with vanilla 2.6.19 and e1000-7.3.20 drivers.

This is very anoying because I should do rmmod e1000; modprobe e1000; ifup e1000
in loop until the link stay up.
I try forcing speed, duplex and flow control, but nothing solve my issue.

The device is working fine on windows.

What should I do ?

Thanks.


Matthieu CASTET


[1]
00:19.0 0200: 8086:104a (rev 02)
        Subsystem: 103c:2800

[2]
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
None
e1000: eth0: e1000_watchdog: NIC Link is Down
e1000: 0000:00:19.0: e1000_validate_option: Flow Control Disabled
e1000: 0000:00:19.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1)
00:0f:fe:77:08:a1
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
None
e1000: eth0: e1000_watchdog: NIC Link is Down
e1000: 0000:00:19.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1)
00:0f:fe:77:08:a1
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
e1000: eth0: e1000_watchdog: NIC Link is Down
e1000: 0000:00:19.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1)
00:0f:fe:77:08:a1
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
e1000: eth0: e1000_watchdog: NIC Link is Down
e1000: 0000:00:19.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1)
00:0f:fe:77:08:a1
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
None
e1000: eth0: e1000_watchdog: NIC Link is Down
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
None

Re: [E1000-devel] e1000 : link down issues

[Auke Kok]

castet.matthieu@free.fr wrote:
> Hi,
> 
> I got a 82566DM e1000 network controller [1] on my motherboard, and most of the
> time the link go down when doing dhcp. [2]
> 
> ifconfig eth0 up -> link become up
> dhclient eth0 -> some packet are transmited and received and the link become
> down.

I'm unsure whether we saw this problem before or not but it does sound familiar. First I 
would like to ask you to check your motherboards vendor website for a possible BIOS 
update for your motherboard. The 82566DM chipsets are rather new and we have pushed out 
NVM changes to vendors for some known issues.

> I sometimes got e1000_reset: Hardware Error.
> 
> This happen with vanilla 2.6.19 and e1000-7.3.20 drivers.
> 
> This is very anoying because I should do rmmod e1000; modprobe e1000; ifup e1000
> in loop until the link stay up. I try forcing speed, duplex and flow control, but
 > nothing solve my issue.
> 
> The device is working fine on windows.

unfortunately that doesn't say that much. I do know that we are queueing some ich8/82566 
changes for the kernel and if you're willing to try them I can provide patch to the 
kernel netdev tree to you (it was posted here 3 days ago) to try.

Cheers,

Auke


PS feel free to trim lkml from the CC to move this discussion further to e1000-devel 
list only.

Re: e1000 : link down issues

[Kok, Auke]

castet.matthieu@free.fr wrote:
> Hi,
> 
> I got a 82566DM e1000 network controller [1] on my motherboard, and most of the
> time the link go down when doing dhcp. [2]
> 
> ifconfig eth0 up -> link become up
> dhclient eth0 -> some packet are transmited and received and the link become
> down.
> 
> 
> 
> I sometimes got e1000_reset: Hardware Error.
> 
> This happen with vanilla 2.6.19 and e1000-7.3.20 drivers.
> 
> This is very anoying because I should do rmmod e1000; modprobe e1000; ifup e1000
> in loop until the link stay up.
> I try forcing speed, duplex and flow control, but nothing solve my issue.
> 
> The device is working fine on windows.
> 
> What should I do ?

Can you check the BIOS and see if AMT2 (Management function) is enabled? If so, 
please disable it there. That might fix your problem. Let me know in either case.

Cheers,

Auke