[OmniOS-discuss] [developer] Re: [discuss] Trouble getting Supermicro board to see all its PCI-e slots

Wed May 1 14:36:45 EDT 2013

>..."Strangely, however, prtdiag sees the slots as populated:"...

I don't understand how it could be pci_boot/create_bus issues; cause pci_boot
is functioning and allocating the buses *correctly* to relevant slots. As
stated, Left-hand has 4::x8-PCI-e slots (2-cpu1, 2-cpu2) and right-hand has
2::x8-PCI-e slots (2-cpu2), which we see through prtdiag details about
slots (1-to-6) assignments.

..which means socket 00 is working correctly, and socket 01 has some
fault!!. surprising, very much nailed correctly relating to QPI
interconnect issues. i guess PCH/C6xxx-chipset and motherboard specs need
to be reviewed.

prtpicl should display correctly details to resource addressing, cause
slots are assigned.

>..."The problem appears to be that Illumos doesn't recognize any PCI
bridges beyond those attached to CPU1.

yes, maybe its a PCIe-PCI bridging issue, even i doubt. try kdb debug
state...
::bp pcieb`pcieb_attach
:c
pcieb`pcieb_dbg_print/W 0x1    --- this should display basic
debugged information
:c

also. try with disabled (both) MSI and workaround patch to 41210/chipset
individually.
pcieb`pcieb_enable_msi/W 0x1
pcieb_disable_41210_wkarnd/W 0x1

i'm not sure if there is any resource conflict issue; mdb -k | ::interrupts
as obviously, h/w is remote!

-----------------------------------
Aakash Saini

On Wed, May 1, 2013 at 6:54 AM, Garrett D'Amore <garrett at damore.org> wrote:

> Check the value of pci_bios_maxbus.
>
> I have a sneaking feeling that the problem may be related to acpi
> enumeration of the bus.  We are limited to seeing the busses that ACPI
> properly enumerates.  Take a look at the code in pci_boot.c for more
> details.  You should especially note the call sites for
> create_pcie_root_bus.
>
> I'd love to help further, but lack of access to hardware that exhibits
> this problem prevents me from doing any active debug myself.
>
>         - Garrett
>
> On May 1, 2013, at 12:50 AM, Sašo Kiselkov <skiselkov.ml at gmail.com> wrote:
>
> > Just a follow up on this: this appears to be an Illumos bug, though I
> > haven't figured out how to resolve it yet. The problem appears to be
> > that Illumos doesn't recognize any PCI bridges beyond those attached to
> > CPU1. Notably, nothing on CPU2 appears to work. I've tested with Linux
> > 3.5 and that works flawless, attached are the lspci -vvvv outputs.
> >
> > The problem appears to be that Illumos stops after PCI address 0b:00.0
> > (on-board MegaRAID SAS 2208). After that the scan should proceed with
> > the QPI inter-processor links, but doesn't.
> >
> > The full lspci should look something like this:
> >
> > 00:00.0 Host bridge: Intel Corporation Xeon E5/Core i7 DMI..
> > 00:01.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 00:02.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 00:02.2 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 00:02.3 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 00:03.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 00:03.2 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 00:04.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:04.1 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:04.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:04.3 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:04.4 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:04.5 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:04.6 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:04.7 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:05.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:05.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 00:05.4 PIC: Intel Corporation Xeon E5/Core i7 I/O APIC (r..
> > 00:11.0 PCI bridge: Intel Corporation C600/X79 series chip..
> > 00:16.0 Communication controller: Intel Corporation C600/X..
> > 00:16.1 Communication controller: Intel Corporation C600/X..
> > 00:1a.0 USB controller: Intel Corporation C600/X79 series ..
> > 00:1d.0 USB controller: Intel Corporation C600/X79 series ..
> > 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (re..
> > 00:1f.0 ISA bridge: Intel Corporation C600/X79 series chip..
> > 00:1f.2 SATA controller: Intel Corporation C600/X79 series..
> > 00:1f.3 SMBus: Intel Corporation C600/X79 series chipset S..
> > 00:1f.6 Signal processing controller: Intel Corporation C6..
> > 02:00.0 Serial Attached SCSI controller: Intel Corporation..
> > 03:00.0 SCSI storage controller: LSI Logic / Symbios Logic..
> > 05:00.0 Ethernet controller: Intel Corporation 82599EB 10-..
> > 05:00.1 Ethernet controller: Intel Corporation 82599EB 10-..
> > 07:00.0 PCI bridge: Tundra Semiconductor Corp. Device 8113..
> > 08:01.0 VGA compatible controller: Matrox Electronics Syst..
> > 09:00.0 Ethernet controller: Intel Corporation I350 Gigabi..
> > 09:00.1 Ethernet controller: Intel Corporation I350 Gigabi..
> > 0b:00.0 RAID bus controller: LSI Logic / Symbios Logic Meg..
> >     <<< Illumos gives up here, Linux continues >>>
> > 7f:08.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:08.3 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:08.4 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:09.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:09.3 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:09.4 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0a.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0a.1 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0a.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0a.3 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0b.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0b.3 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0c.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0c.1 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0c.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0c.6 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0c.7 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0d.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0d.1 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0d.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0d.6 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0e.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0e.1 Performance counters: Intel Corporation Xeon E5/Co..
> > 7f:0f.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0f.1 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0f.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0f.3 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0f.4 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0f.5 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:0f.6 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:10.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:10.1 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:10.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:10.3 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:10.4 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:10.5 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:10.6 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:10.7 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:11.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:13.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 7f:13.1 Performance counters: Intel Corporation Xeon E5/Co..
> > 7f:13.4 Performance counters: Intel Corporation Xeon E5/Co..
> > 7f:13.5 Performance counters: Intel Corporation Xeon E5/Co..
> > 7f:13.6 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:00.0 PCI bridge: Intel Corporation Xeon E5/Core i7 DMI2..
> > 80:01.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 80:02.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 80:02.2 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 80:03.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 80:03.2 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO ..
> > 80:04.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:04.1 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:04.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:04.3 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:04.4 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:04.5 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:04.6 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:04.7 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:05.0 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:05.2 System peripheral: Intel Corporation Xeon E5/Core ..
> > 80:05.4 PIC: Intel Corporation Xeon E5/Core i7 I/O APIC (r..
> > 83:00.0 SCSI storage controller: LSI Logic / Symbios Logic..
> >
> > See http://217.75.71.10/MB.png for the system interconnection diagram.
> > Can somebody please recommend how to debug this issue?
> >
> > Cheers,
> > --
> > Saso
> >
> >
> > -------------------------------------------
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