I found that this additional patch was also needed.
Pcie_port_device_iter was added in 5.16 and referenced in the "PCI:
pciehp: Ignore Link Down/Up caused by error-induced Hot Reset" patch
commit 3134689f98f9e09004a4727370adc46e7635b4be
Author: Lukas Wunner <lu...@wunner.de>
Date: Fri Oct 15 13:58:40 2021 -0500
PCI/portdrv: Rename pm_iter() to pcie_port_device_iter()
Rename pm_iter() to pcie_port_device_iter() and make it visible outside
CONFIG_PM and portdrv_core.c so it can be used for pciehp slot reset
recovery.
[bhelgaas: split into its own patch]
Link:
https://lore.kernel.org/linux-pci/08c046b0-c9f2-3489-eeef-7e7aca435...@gmail.com/
Link:
https://lore.kernel.org/r/251f4edcc04c14f873ff1c967bc686169cd07d2d.1627638184.git.lu...@wunner.de
Signed-off-by: Lukas Wunner <lu...@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelg...@google.com>
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https://bugs.launchpad.net/bugs/1965241
Title:
Include DPC Fixes in Ubuntu 22.04 and 20.04
Status in dellserver:
New
Status in linux package in Ubuntu:
In Progress
Bug description:
SRU Justification:
Impact:
Recovery from DownPort Containment events fail and the NVMe endpoint is not
accessible in some scenarios.
Fix:
These are some of the DPC fixes which help in handling some of the
failure cases of DownPort Containment events.
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
Not yet pulled
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
Test Case:
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