[PATCH v8 0/4] Add parameter for disabling ACS redirection for P2P

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Changes since v6:
* Fixed order of operations for device specific disable function as
  noticed by Alex
* Rebased onto v4.18-rc5 (no conflicts)

Changes since v5:
* Add a quirk to handle the Intel SPT PCH case (as pointed out by Alex)
* Warn in the case that we try to disable ACS redirect on a device
  that doesn't have the ACS capability (also suggested by Alex)
* Collect reviewed-by tag from Alex
* Rebased onto v4.18-rc4 (no conflicts)

Changes since v4:
* Fixed a couple documentation mistakes spotted by Randy

Changes since v3:
* Removed some of the cruft that was copied from the resource_alignment
  paramater (per Alex)
* A number of docuemntation fixes as noticed by Alex and Willy

Changes since v2:
* Rebased onto v4.18-rc1 (no conflicts)
* Minor tweaks to the documentation per Andy
* Removed the "path:" prefix and use the path parsing code
  for simple devices (as it works the same). Per a suggestion from Alex

Changes since v1:
* Reworked pci_dev_str_match_path using strrchr as suggested by Alex
* Collected Christian's Acks


Logan Gunthorpe (4):
  PCI: Make specifying PCI devices in kernel parameters reusable
  PCI: Allow specifying devices using a base bus and path of devfns
  PCI: Introduce disable_acs_redir quirk
  PCI: Introduce the disable_acs_redir parameter

 Documentation/admin-guide/kernel-parameters.txt |  41 +++-
 drivers/pci/pci.c                               | 310 +++++++++++++++++++-----
 drivers/pci/quirks.c                            |  78 +++++-
 include/linux/pci.h                             |   5 +
 4 files changed, 361 insertions(+), 73 deletions(-)

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2.11.0
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