Re: PCI probe, please CC hamilton@sedsystems.ca

From: Greg KH
Date: Mon Sep 15 2003 - 18:11:41 EST


On Mon, Sep 15, 2003 at 04:58:39PM -0600, Kendrick Hamilton wrote:
> Hello,
> we are using the Linux 2.2.16 kernel (some of the code we purchased
> does not work with 2.4.x kernels and we would have to do a lot of
> regression testing to upgrade) on an IBM e-server. We wrote a module for
> a modulator card we are using. The code uses pci_find_device to find the
> modulator cards. The problem we are having is that it finds the cards in
> different orders. One time hss0 is the card in slot 4 and hss1 is the
> card in slot5. The next time we power up the computer, hss0 is the card
> in slot5 and hss1 is the card in slot 4.
> The IBM e-server has about 5 PCI bridges.
> Do you have any suggestion as to how I might be able to ensure the
> cards are always detected in the same order? Our system requires that
> they always be in the same order.

Are the pci device ids different across different boots? If not, is
there any way you can tie a specific device to a specific interface
(unique hardware addresses, mac addresses, etc.)?

thanks,

greg k-h
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