[J][PATCH 0/1] Include DPC Fixes in Ubuntu 22.04 and 20.04

[Jeff Lane]

BugLink: https://bugs.launchpad.net/bugs/1965241

Recovery from DownPort Containment events fail and the NVMe endpoint is not
accessible in some scenarios.

These are some of the DPC fixes which help in handling some of the failure
cases of DownPort Containment events as requested by Dell.

Upstream kernel patches to be included into Ubuntu 22.04 and into Ubuntu
20.04.5:

  Already in Jammy as of Ubuntu-5.15.0-1.1
  PCI/portdrv: Enable Bandwidth Notification only if port supports it
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.17-rc6&id=00823dcbdd415c868390feaca16f0265101efab4

  Cherry picked in this request
  PCI: pciehp: Ignore Link Down/Up caused by error-induced Hot Reset
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.17-rc6&id=ea401499e943c307e6d44af6c2b4e068643e7884

We think 20.04.5 HWE should be sufficient for Focal, so unless I hear
otherwise, I don't think an SRU to 5.4 is necessary.

Lukas Wunner (1):
  PCI: pciehp: Ignore Link Down/Up caused by error-induced Hot Reset

 drivers/pci/hotplug/pciehp.h      |  2 ++
 drivers/pci/hotplug/pciehp_core.c |  2 ++
 drivers/pci/hotplug/pciehp_hpc.c  | 26 ++++++++++++++++++++++++++
 drivers/pci/pcie/portdrv.h        |  2 ++
 drivers/pci/pcie/portdrv_pci.c    |  3 +++
 5 files changed, 35 insertions(+)

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2.25.1