Re: [PATCH v4 1/2] PCI: Take other bus devices into account when distributing resources

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Hi,

On Thu, Jan 05, 2023 at 11:12:11AM +0200, Mika Westerberg wrote:
> > What happens in a topology like this:
> > 
> >   10:00.0 non-hotplug bridge to [bus 20-3f]
> >   10:01.0 non-hotplug bridge to [bus 40]
> >   20:00.0 hotplug bridge
> >   40:00.0 NIC
> > 
> > where we're distributing space on "bus" 10, hotplug_bridges == 0 and
> > normal_bridges == 2?  Do we give half the extra space to bus 20 and
> > the other half to bus 40, even though we could tell up front that bus
> > 20 is the only place that can actually use any extra space?
> 
> Yes we split it into half.

Forgot to reply also that would it make sense here to look at below the
non-hotplug bridges and if we find hotplug bridges, distribute the space
equally between those or something like that?



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