On Wednesday, August 29, 2012 6:12:02 am Peter Jeremy wrote: > [Moving to -stable and adding jhb@ for his input] > > On 2012-Aug-29 11:32:44 +0200, Gustau Pérez i Querol <gpe...@entel.upc.edu> > wrote: > >Al 29/08/2012 11:02, En/na Peter Jeremy ha escrit: > >> On 2012-Aug-28 11:44:44 +0200, Gustau Pérez i Querol > >> <gpe...@entel.upc.edu> wrote: > >>> I'm running FreeBSD 9.1 RC1/AMD64 with VirtualBox. The problem I'm > >>> facing is that I can't use more than 8 network adapters plugged to the > >>> virtual machine. > >> ... > >>> I don't know if it's a net@ problem or maybe it is a problem with > >>> the emulated PCI-bridge and then stable@ should be contacted. Also, I'm > >>> not sure if a real machine would support more than 8 network adapters or > >>> not. Any hints would be appreciated. > >> I don't think I've ever used more than 6 physical NICs in a host but don't > >> know of any reason for >8 to not work. > > > >> Can you please post a "pciconf -lv" from FreeBSD and the equivalent > >> "lspci" from Linux. A FreeBSD verbose boot log might also help. > > > > Sure. I'm attaching them to this mail. I hope the mailing list > >doesn't eat them. If it does, I will post them online and send the URL > >to the mailing list. > > Ah.. lspci shows the 9th LANCE at 02:00.0. The verbose boot shows > FreeBSD finds pcib2 (at pci0 device 25.0) but doesn't see anything > on that bus. ISTR jhb@ will recognize that problem.
Silly firmware, VM, whatever it is. :) It's buggy. > >pcib1: <PCI-PCI bridge> at device 24.0 on pci0 > >pcib1: domain 0 > >pcib1: secondary bus 1 > >pcib1: subordinate bus 2 > >pcib1: no prefetched decode > >pcib1: Subtractively decoded bridge. > >pci1: <PCI bus> on pcib1 > >pci1: domain=0, physical bus=1 > >pcib2: <PCI-PCI bridge> at device 25.0 on pci0 > >pcib2: domain 0 > >pcib2: secondary bus 2 > >pcib2: subordinate bus 3 > >pcib2: no prefetched decode > >pcib2: Subtractively decoded bridge. > >pci2: <PCI bus> on pcib2 > >pci2: domain=0, physical bus=2 This is indeed the problem. PCI bus 2 is "claimed" by both pcib1 and pcib2 since the VM author programmed the bridges incorrectly. In this case, the subordinate bus should be "1" and "2", not "2" and "3". You could add a hack to pci_pci.c to fix the subordinate bus on these bridges which should probably fix this. > >00:18.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2) > >(prog-if 01 [Subtractive decode]) > > Flags: bus master, 66MHz, fast devsel, latency 64 > > Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 > > > >00:19.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2) > >(prog-if 01 [Subtractive decode]) > > Flags: bus master, 66MHz, fast devsel, latency 64 > > Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 > > I/O behind bridge: 00001000-00001fff > > Memory behind bridge: 40000000-400fffff Note here in this output (presumably from lspci under Linux?), the subordinate bus register == secondary bus register for each bridge. -- John Baldwin _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
