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Subject: Re: svn commit: r334365 - head/sys/dev/pci
To: Justin Hibbits <jhibbits@FreeBSD.org>, src-committers@freebsd.org,
 svn-src-all@freebsd.org, svn-src-head@freebsd.org
References: <201805300241.w4U2fmvB033942@repo.freebsd.org>
From: Peter Grehan <grehan@freebsd.org>
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Date: Wed, 30 May 2018 19:42:49 +1000
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>    PCIe only permits 1 device on an endpoint, so some devices ignore the device
>    part of B:D:F probing.  Although ARI likely fixes this, not all platforms
>    support ARI completely or correctly, so some devices end up showing up 32
>    times on the bus.

  I think this might have broken bhyve - a fake PCIe capability is put 
on the root port so that guests will use MSI/MSI-x, but otherwise it 
looks like parallel PCI. Not exactly spec-compliant, but then neither is 
most of the world of PCI/PCIe.

  It may be worth #ifdef'ing this with powerpc.

later,

Peter.