On Wed, Feb 18, 2015 at 08:44:19AM +1100, Stewart Smith wrote:

Gavin Shan [off-list ref] writes:

quoted

The patchset was built based on patchset "powerpc/powernv: Simplify EEH
implementation", which can be found from:

https://patchwork.ozlabs.org/patch/439956/

The patchset corresponds to skiboot changes, which manages PCI slots
in a unified way: OPAL APIs used to do slot reset, power management,
presence status retrival. The patchset shouldn't be merged before
the OPAL firmware counterpart is merged:

https://patchwork.ozlabs.org/patch/440463/

But this patchset will work with old OPAL, right? We're not breaking
compatibility with newer kernels (with this patchset) and older
firmware?

Yes. With old OPAL, the reset stuff in Linux works as before and we
shouldn't see hotpluggable slots from /sys/bus/pci/slots.

The compatibility issue was pointed by Ben. It's something fixed by
this revision (v2).

Thanks,
Gavin