Re: [PATCH V1 0/4] GPIO based PCIe Hot-Plug support
From: Bjorn Helgaas
Date: Mon Oct 03 2022 - 14:10:14 EST
On Sat, Oct 01, 2022 at 05:50:07PM -0600, Jonathan Derrick wrote:
> On 10/1/2022 10:20 AM, Pali Rohár wrote:
> > Would not it better to rather synthesise PCIe Slot Capabilities support
> > in your PCIe Root Port device (e.g. via pci-bridge-emul.c) and then let
> > existing PCI hotplug code to take care for hotplugging? Because it
> > already implements all required stuff for re-scanning, registering and
> > unregistering PCIe devices for Root Ports with Slot Capabilities. And I
> > think that there is no need to have just another (GPIO based)
> > implementation of PCI hotplug.
> I did that a few years ago (rejected), but can attest to the robustness of
> the pcie hotplug code on non-hotplug slots.
I think the thread is here:
and I'm sorry that my response came across as "rejected". I intended
it as "this is good ideas and good work and we should keep going".