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Date:      Mon, 11 Aug 1997 22:07:28 -0600
From:      Steve Passe <smp@csn.net>
To:        Alex <garbanzo@hooked.net>
Cc:        "John W. DeBoskey" <jwd@unx.sas.com>, freebsd-current@FreeBSD.ORG
Subject:   Re: Number of pci busses probed at boot time 
Message-ID:  <199708120407.WAA17341@Ilsa.StevesCafe.com>
In-Reply-To: Your message of "Mon, 11 Aug 1997 14:03:44 PDT." <Pine.BSF.3.96.970811135743.405A-100000@zippy.dyn.ml.org> 

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Hi,

> >    When I boot my system, the pci init code scans 255 pci busses
> > looking for devices (which are found on bus 0 & 1). So, I thought
> > I might reduce the number of pci busses probed...
> 
> I'm assuming that you're using an SMP machine, however even if you're not
> this will probably apply to you. Since you obviously have the kernel
> sources, check out the file that should be in
> /usr/src/sys/i386/conf/SMP.GENERIC.  This has an option "NBUS" and a value
> following it.  This sets the number of busses that the kernel will probe
> for afaik.

actually, no...  NBUS merely reserves slots in a table for building mptable
entries for an SMP kernel.  It has nothing to do with any sort of bus probe.

--
Steve Passe	| powered by 
smp@csn.net	|            Symmetric MultiProcessor FreeBSD





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