On Wed, Dec 10, 2025 at 09:29:04PM +0800, Shuai Xue wrote: > changes since v13: > - fix doc typos per ALOK TIWARI > > changes since v12: > - add Reviewed-by tag for PATCH 1 from Steve > - add Reviewed-by tag for PATCH 1-3 from Ilpo > - add comments for why use string to define tracepoint per Steve > - minor doc improvements from Ilpo > - remove use pci_speed_string to fix PCI dependends which cause build error > on sparc64 > > changes since v11: > - rebase to Linux 6.18-rc1 (no functional changes) > > changes since v10: > - explicitly include header file per Ilpo > - add comma on any non-terminator entry per Ilpo > - compile trace.o under CONFIG_TRACING per Ilpo > > changes since v9: > - add a documentation about PCI tracepoints per Bjorn > - create a dedicated drivers/pci/trace.c that always defines the PCI > tracepoints per Steve > - move tracepoint callite into __pcie_update_link_speed() per Lukas and Bjorn > > 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 > > changes since v7: > - replace the TRACE_INCLUDE_PATH to avoid macro conflict per Steven > - pick up Reviewed-by from Lukas Wunner > > 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 (3): > PCI: trace: Add a generic RAS tracepoint for hotplug event > PCI: trace: Add a RAS tracepoint to monitor link speed changes > Documentation: tracing: Add documentation about PCI tracepoints > > Documentation/trace/events-pci.rst | 74 +++++++++++++++++ > drivers/pci/Makefile | 3 + > drivers/pci/hotplug/pciehp_ctrl.c | 31 +++++-- > drivers/pci/hotplug/pciehp_hpc.c | 3 +- > drivers/pci/pci.c | 2 +- > drivers/pci/pci.h | 21 ++++- > drivers/pci/pcie/bwctrl.c | 4 +- > drivers/pci/probe.c | 9 +- > drivers/pci/trace.c | 11 +++ > include/trace/events/pci.h | 129 +++++++++++++++++++++++++++++ > include/uapi/linux/pci.h | 7 ++ > 11 files changed, 279 insertions(+), 15 deletions(-) > create mode 100644 Documentation/trace/events-pci.rst > create mode 100644 drivers/pci/trace.c > create mode 100644 include/trace/events/pci.h
Applied to pci/trace for v6.20, thanks! This will be rebased after v6.19-rc1.
