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* [PATCH v10 0/5] Simplify PCIe native ownership detection logic
@ 2020-10-26 18:56 Kuppuswamy Sathyanarayanan
  2020-10-26 18:56 ` [PATCH v10 1/5] PCI: Conditionally initialize host bridge native_* members Kuppuswamy Sathyanarayanan
                   ` (4 more replies)
  0 siblings, 5 replies; 8+ messages in thread
From: Kuppuswamy Sathyanarayanan @ 2020-10-26 18:56 UTC (permalink / raw)
  To: bhelgaas
  Cc: linux-pci, linux-kernel, ashok.raj, sathyanarayanan.kuppuswamy, knsathya

Currently, PCIe capabilities ownership status is detected by
verifying the status of pcie_ports_native, pcie_ports_dpc_native
and _OSC negotiated results (cached in  struct pci_host_bridge
->native_* members). But this logic can be simplified, and we can
use only struct pci_host_bridge ->native_* members to detect it. 

This patchset removes the distributed checks for pcie_ports_native,
pcie_ports_dpc_native parameters.

Changes since v9:
 * Rebased on top of v5.10-rc1

Changes since v8:
 * Simplified setting _OSC ownwership logic
 * Moved bridge->native_ltr out of #ifdef CONFIG_PCIEPORTBUS.

Changes since v7:
 * Fixed "fix array_size.cocci warnings".

Changes since v6:
 * Created new patch for CONFIG_PCIEPORTBUS check in
   pci_init_host_bridge().
 * Added warning message for a case when pcie_ports_native
   overrides _OSC negotiation result.

Changes since v5:
 * Rebased on top of v5.8-rc1

Changes since v4:
 * Changed the patch set title (Original link: https://lkml.org/lkml/2020/5/26/1710)
 * Added AER/DPC dependency logic cleanup fixes.
 

Kuppuswamy Sathyanarayanan (5):
  PCI: Conditionally initialize host bridge native_* members
  ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set.
  ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native
    is set.
  PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable
    logic
  PCI/DPC: Move AER/DPC dependency checks out of DPC driver

 drivers/acpi/pci_root.c           | 37 ++++++++++++++++++++++---------
 drivers/pci/hotplug/pciehp_core.c |  2 +-
 drivers/pci/pci-acpi.c            |  3 ---
 drivers/pci/pcie/aer.c            |  2 +-
 drivers/pci/pcie/dpc.c            |  3 ---
 drivers/pci/pcie/portdrv.h        |  2 --
 drivers/pci/pcie/portdrv_core.c   | 13 +++++------
 drivers/pci/probe.c               |  6 +++--
 include/linux/acpi.h              |  2 ++
 include/linux/pci.h               |  2 ++
 10 files changed, 42 insertions(+), 30 deletions(-)

-- 
2.17.1


^ permalink raw reply	[flat|nested] 8+ messages in thread

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Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-10-26 18:56 [PATCH v10 0/5] Simplify PCIe native ownership detection logic Kuppuswamy Sathyanarayanan
2020-10-26 18:56 ` [PATCH v10 1/5] PCI: Conditionally initialize host bridge native_* members Kuppuswamy Sathyanarayanan
2020-10-26 18:56 ` [PATCH v10 2/5] ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set Kuppuswamy Sathyanarayanan
2020-10-27  1:01   ` kernel test robot
2020-10-26 18:56 ` [PATCH v10 3/5] ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native " Kuppuswamy Sathyanarayanan
2020-10-26 18:56 ` [PATCH v10 4/5] PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable logic Kuppuswamy Sathyanarayanan
2020-10-26 18:56 ` [PATCH v10 5/5] PCI/DPC: Move AER/DPC dependency checks out of DPC driver Kuppuswamy Sathyanarayanan
2020-10-28  5:42   ` Ethan Zhao

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