[PATCH 0/2] PCI: Add boot options to disable DPC and AER recovery

[Yury Murashka]

On large modular systems with a complex PCIe tree, the default kernel
AER recovery and DPC behavior could cause unexpected side effects.
Sometimes it would be nice to have the option to keep the system in an
unmodified state and be able to handle PCIe errors from userspace.

This series adds two new PCI kernel boot options:

  pci=noaer_recovery  - Disable AER error recovery while still clearing
                        error status bits
  pci=nodpc           - Disable PCI Downstream Port Containment entirely

Yury Murashka (2):
  PCI: Add pci=noaer_recovery kernel boot option
  PCI: Add pci=nodpc kernel boot option

 Documentation/admin-guide/kernel-parameters.txt |  7 +++++++
 drivers/pci/pci.c                               |  4 ++++
 drivers/pci/pci.h                               |  4 ++++
 drivers/pci/pcie/dpc.c                          | 16 +++++++++++++---
 drivers/pci/pcie/err.c                          | 15 +++++++++++++++
 5 files changed, 43 insertions(+), 3 deletions(-)


base-commit: 6f3ed7fec72fc8979b2a8c7219c0a9fcfc8d07b5
-- 
2.51.0