[-> to: Madhavan, Michael, Mahesh; seeking acks] On Thu, Jul 17, 2025 at 06:27:52PM -0500, Bjorn Helgaas wrote: > On Tue, Jul 15, 2025 at 04:31:49PM -0500, Timothy Pearson wrote: > > Hello all, > > > > This series includes several fixes for bugs in the PowerNV PCIe hotplug > > driver that were discovered in testing with a Microsemi Switchtec PM8533 > > PFX 48xG3 PCIe switch on a PowerNV system, as well as one workaround for > > PCIe switches that don't correctly implement slot presence detection > > such as the aforementioned one. Without the workaround, the switch works > > and downstream devices can be hot-unplugged, but the devices never come > > back online after being plugged in again until the system is rebooted. > > Other hotplug drivers (like pciehp_hpc) use a similar workaround. > > > > Also included are fixes for the EEH driver to make it hotplug safe, > > and a small patch to enable all three attention indicator states per > > the PCIe specification. > > > > Thanks, > > > > Shawn Anastasio (2): > > PCI: pnv_php: Properly clean up allocated IRQs on unplug > > PCI: pnv_php: Work around switches with broken presence detection > > > > Timothy Pearson (4): > > powerpc/eeh: Export eeh_unfreeze_pe() > > powerpc/eeh: Make EEH driver device hotplug safe > > PCI: pnv_php: Fix surprise plug detection and recovery > > PCI: pnv_php: Enable third attention indicator state > > > > arch/powerpc/kernel/eeh.c | 1 + > > arch/powerpc/kernel/eeh_driver.c | 48 ++++-- > > arch/powerpc/kernel/eeh_pe.c | 10 +- > > arch/powerpc/kernel/pci-hotplug.c | 3 + > > drivers/pci/hotplug/pnv_php.c | 244 +++++++++++++++++++++++++++--- > > 5 files changed, 263 insertions(+), 43 deletions(-) > > I'm OK with this from a PCI perspective, and I optimistically put it > on pci/hotplug. > > I'm happy to merge via the PCI tree, but would need acks from the > powerpc folks for the arch/powerpc parts. > > Alternatively it could be merged via powerpc with my ack on the > drivers/pci patches: > > Acked-by: Bjorn Helgaas <bhelg...@google.com> > > If you do merge via powerpc, I made some comment formatting and commit > log tweaks that I would like reflected in the drivers/pci part. These > are on > https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/log/?h=hotplug
Powerpc folks: let me know how you want to handle this. I haven't included it in pci/next yet because I don't have acks for the arch/powerpc parts. Bjorn
