On Wed, Jul 23, 2025 at 04:30:18PM +0530, Madhavan Srinivasan wrote: > > > On 7/23/25 2:17 AM, Bjorn Helgaas wrote: > > 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. > > Patchset looks fine to be. > > I am fine to take it via my tree since I already have your Acked-by.
OK, I'll assume this will be merged via your tree. Please cherry-pick the drivers/pci patches from my tree to preserve my tweaks. I moved them from pci/hotplug to pci/hotplug-pnv_php: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/log/?h=hotplug-pnv_php
