Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset"
commit 5260bd6d upstream. This reverts commit d5af729d. d5af729d ("PCI: Mark NVIDIA T4 GPUs to avoid bus reset") avoided Secondary Bus Reset on the T4 because the reset seemed to not work when the T4 was directly attached to a Root Port. But NVIDIA thinks the issue is probably related to some issue with the Root Port, not with the T4. The T4 provides neither PM nor FLR reset, so masking bus reset compromises this device for assignment scenarios. Revert d5af729d as requested by Wu Zongyong. This will leave SBR broken in the specific configuration Wu tested, as it was in v6.5, so Wu will debug that further. Link: https://lore.kernel.org/r/ZPqMCDWvITlOLHgJ@wuzongyong-alibaba Link: https://lore.kernel.org/r/20230908201104.GA305023@bhelgaas Signed-off-by:Bjorn Helgaas <bhelgaas@google.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
eb1fa481
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