Re: patch to support peer PCI host bridges

Martin Mares (mj@atrey.karlin.mff.cuni.cz)
Fri, 24 Apr 1998 17:38:19 +0200


Hi,

> I'm new to Linux and this is my first post. I am running 2.1.97 on a Micron
> Powerdigm Xsu and found that the pci_scan_bus routine in drivers/pci/pci.c
> does not properly support peer host-PCI bridges (multiple bridges attached to
> the host bus). This is not a common configuration but the Powerdigm at least
> does implement peer host bridges. The peer host bridges must be configured
> with unique bus numbers in order to distinguish configuration space accesses
> (since the configuration registers overlay each other in memory in this
> situation). The patch follows (apologies if it is not in the correct format):

I'll surely look at it. Is it a host bridge for a secondary CPU?

Can you send me output of `lspci -vvx' for your machine?

Have a nice fortnight

-- 
Martin `MJ' Mares   <mj@ucw.cz>   http://atrey.karlin.mff.cuni.cz/~mj/
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
"Where the heck is the ANY key????"

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