Re: [PATCH v7 04/17] PCI/AER: Modify AER driver logging to report CXL or PCIe bus error type

[Lukas Wunner]

On Wed, Feb 12, 2025 at 03:08:10PM -0600, Bowman, Terry wrote:
> I found in using is_internal_error() (v5) a USP with fatal UCE will not
> have AER status populated in aer_info structure, only the severity field
> is populated (see aer_get_device_error_info()). The aer_info is not
> populated because concern reading the USP's AER (config space) when
> the upstream link state is invalid. Calling is_internal_error() in this
> case will return false because the uncorrectable internal error (UIE) bit
> is 0 and proceed to treat as a PCIe error.
> How do you want to proceed to handle the UCE protocol error in this case?

Shuai Xue is proposing a solution in this pending patch:

https://lore.kernel.org/r/20250207093500.70885-5-xueshuai@xxxxxxxxxxxxxxxxx/