[PATCHv2 00/20] PCI, error handling and hot plug

[Keith Busch <keith.busch@intel.com>]

v1 -> v2:

  * Use Dennis' patch for the incorrect slot reset detection since he
    posted that fix first

  * I found some DPC and HPC capable ports (PLX Device 9781 to be
    specific) that don't have data-link active reporting capabilities,
    so I added another patch to handle that

  * If the recovery determines the precence detection has changed during
    error handling, we need to prevent the downstream driver from
    accessing the device under its old context. This was a little tricky
    because of a circular dependency on the pci_bus_sem, so there is a
    prep patch to allow recursive pci bus walking, and then we use it
    from pciehp's slot_reset callback.

  * Make error handling not able to change the error state away from
    pci_channel_state_perm_failure so that hotplug and error handling
    may use the same state (suggested by Benjamin Herrenschmidt)

  * Moved the link active wait requirements into generic code
    (suggested by Sinan Kaya)

  * Check for successful secondary bus reset on recovery failure
    (suggested by Sinan Kaya)

  * Use pcie_device for service driver error callbacks (suggested by
    Lukas Wunner)

  * Hold pci_slot_lock when doing a slot reset (suggested by
    Lukas Wunner)

  * Fixed processing user orderly hotplug requests during error handling
    suggested by Lukas Wunner)

  * Various code cleanups (suggested by Christoph Hellwig)

  * Split dpc code cleanup into separate patch

  * Changelog grammer fixes and wording clarity

Dennis Dalessandro (1):
  PCI: Fix faulty logic in pci_reset_bus()

Keith Busch (18):
  PCI: Add required waits on link active
  PCI/AER: Remove dead code
  PCI/ERR: Use slot reset if available
  PCI/ERR: Handle fatal error recovery
  PCI/ERR: Always use the first downstream port
  PCI/ERR: Simplify broadcast callouts
  PCI/ERR: Report current recovery status for udev
  PCI/ERR: Remove devices on recovery failure
  PCI/portdrv: Provide pci error callbacks
  PCI/portdrv: Restore pci state on slot reset
  PCI: Make link active reporting detection generic
  PCI: Create recursive bus walk
  PCI/pciehp: Fix powerfault detection order
  PCI/pciehp: Implement error handling callbacks
  PCI/pciehp: Ignore link events during DPC event
  PCI/DPC: Wait for link active after reset
  PCI/DPC: Link reset code cleanup
  PCI: Unify device inaccessible

Lukas Wunner (1):
  PCI: Simplify disconnected marking

 drivers/pci/bus.c                 |  14 +-
 drivers/pci/hotplug/pciehp.h      |   2 +-
 drivers/pci/hotplug/pciehp_core.c |  39 +++++
 drivers/pci/hotplug/pciehp_hpc.c  |  56 +++----
 drivers/pci/hotplug/pciehp_pci.c  |   9 +-
 drivers/pci/pci.c                 |  68 +++++++-
 drivers/pci/pci.h                 |  17 +-
 drivers/pci/pcie/aer.c            |  27 ++--
 drivers/pci/pcie/dpc.c            |  37 +++--
 drivers/pci/pcie/err.c            | 327 +++++++++++++-------------------------
 drivers/pci/pcie/portdrv.h        |  10 +-
 drivers/pci/pcie/portdrv_pci.c    |  45 +++++-
 drivers/pci/probe.c               |   1 +
 drivers/pci/slot.c                |   2 +-
 include/linux/pci.h               |  10 ++
 15 files changed, 353 insertions(+), 311 deletions(-)

-- 
2.14.4