Messages in this thread | | | Subject | Re: [PATCH v6 4/5] PCI: only return true when dev io state is really changed | From | Sinan Kaya <> | Date | Fri, 2 Oct 2020 12:08:27 -0400 |
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On 9/30/2020 3:05 AM, Ethan Zhao wrote: > When uncorrectable error happens, AER driver and DPC driver interrupt > handlers likely call > > pcie_do_recovery() > ->pci_walk_bus() > ->report_frozen_detected() > > with pci_channel_io_frozen the same time.
We need some more data on this. If DPC is supported by HW, errors should be triggered by DPC not AER.
If I remember right, there is a register that tells which AER errors should be handled by DPC.
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