On Tue, 2017-04-18 at 12:00 -0600, Jason Gunthorpe wrote: > - All platforms can succeed if the PCI devices are under the same > 'segment', but where segments begin is somewhat platform specific > knowledge. (this is 'same switch' idea Logan has talked about) We also need to be careful whether P2P is enabled in the switch or not. Cheers, Ben.