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To: Jonathan Lundell <jlundell@pobox.com>
Cc: kaih@khms.westfalen.de (Kai Henningsen), linux-kernel@vger.kernel.org
Subject: Re: LANANA: To Pending Device Number Registrants
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From: ebiederm@xmission.com (Eric W. Biederman)
Date: 20 May 2001 03:37:14 -0600
In-Reply-To: Jonathan Lundell's message of "Sat, 19 May 2001 10:36:14 -0700"
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Jonathan Lundell <jlundell@pobox.com> writes:

> At 10:42 AM +0200 2001-05-19, Kai Henningsen wrote:
> >  > Jeff Garzik's ethtool
> >  > extension at least tells me the PCI bus/dev/fcn, though, and from
> >>  that I can write a userland mapping function to the physical
> >>  location.
> >
> >I don't see how PCI bus/dev/fcn lets you do that.
> 
> I know from system documentation, or can figure out once and for all 
> by experimentation, the correspondence between PCI bus/dev/fcn and 
> physical locations. Jeff's extension gives me the mapping between 
> eth# and PCI bus/dev/fcn, which is not otherwise available (outside 
> the kernel).

Just a second let me reenumerate your pci busses, and change all of the bus
numbers.  Not that this is a bad thought.  It is just you need to know
the tree of PCI busses/bridges up to the root on the machine in question.

Eric