On Tue, Apr 05, 2022 at 09:34:19AM -0600, dann frazier wrote:
> From: Marc Zyngier <maz@xxxxxxxxxx>
>
> commit 1874b6d7ab1bdc900e8398026350313ac29caddb upstream.
>
> Commit 6dce5aa59e0b ("PCI: xgene: Use inbound resources for setup")
> killed PCIe on my XGene-1 box (a Mustang board). The machine itself
> is still alive, but half of its storage (over NVMe) is gone, and the
> NVMe driver just times out.
>
> Note that this machine boots with a device tree provided by the
> UEFI firmware (2016 vintage), which could well be non conformant
> with the spec, hence the breakage.
>
> With the patch reverted, the box boots 5.17-rc8 with flying colors.
>
> Link: https://lore.kernel.org/all/Yf2wTLjmcRj+AbDv@xps13.dannf
> Link: https://lore.kernel.org/r/20220321104843.949645-2-maz@xxxxxxxxxx
> Fixes: 6dce5aa59e0b ("PCI: xgene: Use inbound resources for setup")
> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> Cc: Rob Herring <robh@xxxxxxxxxx>
> Cc: Toan Le <toan@xxxxxxxxxxxxxxxxxxxxxx>
> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
> Cc: Krzysztof Wilczyński <kw@xxxxxxxxx>
> Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Cc: Stéphane Graber <stgraber@xxxxxxxxxx>
> Cc: dann frazier <dann.frazier@xxxxxxxxxxxxx>
> [dannf: minor context adjustment]
> Signed-off-by: dann frazier <dann.frazier@xxxxxxxxxxxxx>
> ---
> drivers/pci/controller/pci-xgene.c | 33 ++++++++++++++++++++----------
> 1 file changed, 22 insertions(+), 11 deletions(-)
All now queued up, thanks.
greg k-h
