Re: [PATCH v9 0/2] add PCI hotplug and PCIe link tracepoint

Shuai Xue
2025-09-19T01:40:30Z

在 2025/9/19 07:06, Bjorn Helgaas 写道:
> On Wed, Jul 23, 2025 at 11:31:06AM +0800, Shuai Xue wrote:
>> changes since v8:
>> - rewrite commit log from Bjorn
>> - move pci_hp_event to a common place (include/trace/events/pci.h) per Ilpo
>> - rename hotplug event strings per Bjorn and Lukas
>> - add PCIe link tracepoint per Bjorn, Lukas, and Ilpo
>>
>> Hotplug events are critical indicators for analyzing hardware health, and
>> surprise link downs can significantly impact system performance and reliability.
>> In addition, PCIe link speed degradation directly impacts system performance and
>> often indicates hardware issues such as faulty devices, physical layer problems,
>> or configuration errors.
>>
>> This patch set add PCI hotplug and PCIe link tracepoint to help analyze PCI
>> hotplug events and PCIe link speed degradation.
>>
>> Shuai Xue (2):
>> PCI: trace: Add a generic RAS tracepoint for hotplug event
>> PCI: trace: Add a RAS tracepoint to monitor link speed changes
>>
>> drivers/pci/hotplug/pciehp_ctrl.c | 33 +++++++--
>> drivers/pci/hotplug/pciehp_hpc.c | 5 +-
>> drivers/pci/pci.c | 2 +-
>> drivers/pci/pci.h | 12 ++-
>> drivers/pci/pcie/bwctrl.c | 4 +-
>> drivers/pci/probe.c | 10 ++-
>> include/linux/pci.h | 1 +
>> include/trace/events/pci.h | 119 ++++++++++++++++++++++++++++++
>> include/uapi/linux/pci.h | 7 ++
>> 9 files changed, 177 insertions(+), 16 deletions(-)
>> create mode 100644 include/trace/events/pci.h
>
> Hi Shuai,
>
> I lost track of what happened with this series. It seemed like we
> were pretty close but there were some trivial issues, and I don't
> think we ever merged it. Did I miss something, or are you waiting on
> me?
>
> Bjorn

Hi Bjorn,

Thank you for following up on this series. I apologize for the lack of
updates.

You're right that we were close to merging - I've been tied up with
other urgent work and haven't had a chance to address the remaining
minor issues.

I'll prepare and send out a new version this week with all the requested
changes.

Thanks for your patience.

Best regards,
Shuai