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Message-ID: <18343.14128.272002.870082@gromit.timing.com>
Date: Mon, 4 Feb 2008 09:02:56 -0700
From: John E Hein <jhein@timing.com>
To: John Baldwin <jhb@freebsd.org>
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Cc: cvs-src@freebsd.org, Scott Long <scottl@samsco.org>,
	src-committers@freebsd.org, cvs-all@freebsd.org, grehan@freebsd.org
Subject: Re: cvs commit: src/sys/dev/pci pci.c
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John Baldwin wrote at 09:44 -0500 on Feb  4, 2008:
 > We can blacklist those bridges just like we blacklist the AMD HT8131 bridge
 > which is broken.

That's okay with me.  We might use a PCIe switch to split an x16 lane
(used normally for PEG) into two x8 lanes (used for our own nefarious
purposes including MSI for sure).  These should all pass
PCIe-deviceness through the switch to a root complex (in all the
targets we've looked at using), however, and so should be unaffected
by your new PCIe detection, regardless of blacklisting a PCI or PCI-X
to PCIe bridge.