Re: [PATCH v1] PCI: work around Stratus ftServer broken PCIe hierarchy

[Prarit Bhargava <prarit@redhat.com>]

On 04/25/2012 08:30 PM, Yinghai Lu wrote:
> On Wed, Apr 25, 2012 at 4:36 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
>> A PCIe downstream port is a P2P bridge.  Its secondary interface is
>> a link that should lead only to device 0 (unless ARI is enabled)[1], so
>> we don't probe for non-zero device numbers.
>>
>> Some Stratus ftServer systems have a PCIe downstream port (02:00.0) that
>> leads to both an upstream port (03:00.0) and a downstream port (03:01.0),
>> and 03:01.0 has important devices below it:
>>
>>  [0000:02]-+-00.0-[0000:03]--+-00.0
>>                              \-01.0-[0000:xx]--+-[USB]
>>                                                \-[NIC]
>>
>> Previously, we didn't enumerate device 03:01.0, so USB and the network
>> didn't work.  This patch adds a DMI quirk to scan all device numbers,
>> not just 0, below a downstream port.
> 
> is there output for
> lspci -vvxxx -s 03:00.0
> lspci -vvxxx -s 03:00.1
> 
> like to know what is the 03:00.0.

[Adding correct email addy for Jim@stratus]

Jim, can you provide this output?

Thanks,

P.

> 
> Thanks
> 
> Yinghai