relationship between eth and pci device

[vu pham]

C M Reinehr wrote:
> Vu,
> 
> On Mon 13 October 2008 12:34, vu pham wrote:
>> I am looking for which PCI device an ethernet device is. Starting with
>> lspic, I have
>>
>> 04:00.0 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit
>> Ethernet Controller (Copper) (rev 01)
>> 04:00.1 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit
>> Ethernet Controller (Copper) (rev 01)
>> 0b:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet
>> Controller (rev 06)
>> 0b:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet
>> Controller (rev 06)
>>
>>
>> Then I compare with dmesg,
>> 0000:02:02.0: eth0: (PCI Express:2.5GB/s:Width x4) 00:1e:68:2f:59:4a
>> 0000:02:02.0: eth0: Intel(R) PRO/1000 Network Connection
>> 0000:02:02.0: eth0: MAC: 3, PHY: 5, PBA No: ffffff-0ff
>> 0000:02:02.0: eth0: Link is Up 1000 Mbps Full Duplex, Flow Control: RX
>>
>> Go back to lspci and find out 02:02 is the
>> 02:02.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express
>> Downstream Port E3 (rev 01)
>>
>>
>> How do you find it ?
>>
>> Thanks,
>>
>> Vu
> 
> One way which works for me is to look in /sys/bus/pci/devices/ and cd to the 
> bus address from dmesg. You should find a file in this node such as net:eth0, 
> net:eth1, etc. With this information 'ifconfig -a' will allow you to identify 
> the individual interface by the MAC id.
> 

Thanks, CM. It does help. I think you mean "cd to the bus address from 
lspci".

Vu