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Date:      Mon, 4 Feb 2008 09:02:56 -0700
From:      John E Hein <jhein@timing.com>
To:        John Baldwin <jhb@freebsd.org>
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
Message-ID:  <18343.14128.272002.870082@gromit.timing.com>
In-Reply-To: <200802040944.43812.jhb@freebsd.org>
References:  <200802012031.m11KV9NZ095246@repoman.freebsd.org> <47A3DCC1.2030700@freebsd.org> <18342.42877.245961.707684@gromit.timing.com> <200802040944.43812.jhb@freebsd.org>

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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.



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