Re: about mpss with pcie_bus_perf

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[+cc Jon, Yijing]

On Thu, Jan 9, 2014 at 5:46 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> looks like we have some problem with MPSS.
>
> +-02.2-[10-1f]----00.0-[11-13]--+-02.0-[12]--+-00.0
>                            |                      |                   \-00.1
>                            |                      \-03.0-[13]----00.0
>
> kernel boot with pce_bus_perf:
> 00:02.2: cap/ctl: 256/256
> 10:00.0: cap/ctl: 256/256
> 11:02.0: cap/ctl: 256/256
> 12:00.0: cap/ctl: 128/128
> 12:00.1: cap/ctl: 128/128
>
> 11:03.0: cap/ctl: 256/256
> 13:00.0: cap/ctl: 256/256
>
> Should we set MPSS to 128?

Please propose a patch and/or open a bug report.  I don't do enough
with MPS to make the problem and its solution immediately obvious to
me.

Bjorn
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