On Fri, Jul 17, 2020 at 03:04:10PM -0400, Lyude Paul wrote: > Isn't it possible to tell whether a PCI device is connected through > thunderbolt or not? We could probably get away with just defaulting > to 100ms for thunderbolt devices without DLL Link Active specified, > and then default to the old delay value for non-thunderbolt devices. pci_is_thunderbolt_attached()