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 -- 2.39.3
