2007-01-11 17:00:37

by matthieu castet

Subject: e1000 : link down issues

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

2007-01-11 17:17:15

by Kok, Auke

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

[email protected] 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.