How to online identify PCI BUS speed of ethernet card?

[Robinson Tiemuqinke]

Hi,

Get a pretty "hard" question on my fedora boxes now
-- Anyone know how to online identify the PCI Bus
type/speed of a connected Ethernet card(s)?

I have a bunches of boxes running Linux FC4/FC5, When
we ran 2.4 kernel we could use command "cat
/proc/net/nicinfo/eth0.info|grep PCI_Bus_Speed" to
figure out the underlying PCI bus' type and speed just
like the following:

[root@testnode01 root]# cat
/proc/net/nicinfo/eth0.info | grep PCI_Bus_Speed
PCI_Bus_Speed                   PCI Express
[root@testnode01 root]#

But I could not find a similar way to get the same
information on FC4/FC5 b/c 2.6 kernel is in use.

There is a tool dmidecode helps a little, but the
info about network/PCI-bus are so unclear and discrete
and it looks there is no way to "bind" info for
ethernet and info for PCI Buses.

Please help.

Thanks a lot

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[Mikkel]

Robinson Tiemuqinke wrote:
> Hi,
>
> Get a pretty "hard" question on my fedora boxes now
> -- Anyone know how to online identify the PCI Bus
> type/speed of a connected Ethernet card(s)?
>
> I have a bunches of boxes running Linux FC4/FC5, When
> we ran 2.4 kernel we could use command "cat
> /proc/net/nicinfo/eth0.info|grep PCI_Bus_Speed" to
> figure out the underlying PCI bus' type and speed just
> like the following:
>
> [root@testnode01 root]# cat
> /proc/net/nicinfo/eth0.info | grep PCI_Bus_Speed
> PCI_Bus_Speed                   PCI Express
> [root@testnode01 root]#
>
> But I could not find a similar way to get the same
> information on FC4/FC5 b/c 2.6 kernel is in use.
>
> There is a tool dmidecode helps a little, but the
> info about network/PCI-bus are so unclear and discrete
> and it looks there is no way to "bind" info for
> ethernet and info for PCI Buses.
>
> Please help.
>
> Thanks a lot

Does "lspci -vv" give you what you want?

Mikkel