Quick search of the forum showed no similar threads, sorry if this is covered elsewhere.

Embedded system has two Intel Ethernet controllers, 1 82574L and 1 82583V, running on Debian 7.11, kernel 3.2.0.4.

The 82583V functions correctly using the e1000e driver and gives me a connection via DHCP and static IP.

The 82574L does not. I can see the device in lspci, the e1000e driver is loaded correctly and I can even configure the network in ifconfig. But both static IP and DHCP yield no connection.

I checked the Intel driver site and it says that if the system has trouble with MSI/MSI-X interrupts to disable them on compilation. But checking /proc/interrupts shows both network adapters, so I assume this is not the issue.

No errors/warnings in /var/log/messages or dmesg. Verified cabling is good.

I'm at a loss of how else to diagnose this controller. Anyone have any ideas? Any help is appreciated.

What criteria are you using to determine "not functioning"?

No activity on the network. Unable to ping network devices. No sign of packets being sent, received or dropped. No connectivity or activity light on the physical Ethernet port.

Check your bios and if a desktop pc check your motherboard docs. Try a new kernel. Sounds like an interrupt problem.

1 members found this post helpful.

I'll try recompiling the drivers tomorrow with interrupts disabled.

Out of curiosity, what makes you say it's an interrupt problem?

unassailable,

This may help you:

http://www.linuxquestions.org/questi...lution-831364/

1 members found this post helpful.

Tried recompiling the drivers with interrupts disabled. After setting:
to kernel parameters, still not working.

Thanks for the link, but I have already tried that solution.

Thank you both for trying to help out. Turns out it was a hardware issue, take a look at pin 2 in the attached image.



I straightened it out and everything works as it should.

Hey.
I know that this topic is very, very old, but I think I should share my experience.
Background: my network card, based on the NIC 82574L, built into the Intel D2500NN motherboard, died for an unknown reason after changing OS from Windows to Linux Ubuntu Desktop.
The BIOS did not show the mac address of the network card and Windows Device Manager showed "error code 10".

I came to the conclusion that the memory was somehow damaged. Fortunately, I had another exactly the same motherboard,
so I was able to dump the EEPROM memory image from the working motherboard and flash it into a non-working one.
Since I spent a large amount of my free time solving this issue, I want to help people who will follow my path.
I'll attach the MS-DOS utility for flashing Intel NIC's and the EEPROM image for 82574L.
I have replaced the MAC address with zeros (Its the first three bytes of EEPROM image). You can put there your own, or flash EEPROM without affecting yours with special command on EEUPDATE tool.
Wish you good luck.
https://drive.google.com/file/d/1PXY...ew?usp=sharing

1 members found this post helpful.

This fixed my broken nic. Thank you very much!