linux-kernel - Re: [PATCH v8 02/16] PCI/AER: Modify AER driver logging to report CXL or PCIe bus error type

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Message-ID: <9479341b-8e72-471e-84e4-55b91c7184e5@amd.com>
Date: Thu, 27 Mar 2025 12:17:42 -0500
From: "Bowman, Terry" <terry.bowman@....com>
To: Ira Weiny <ira.weiny@...el.com>, linux-cxl@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
 nifan.cxl@...il.com, dave@...olabs.net, jonathan.cameron@...wei.com,
 dave.jiang@...el.com, alison.schofield@...el.com, vishal.l.verma@...el.com,
 dan.j.williams@...el.com, bhelgaas@...gle.com, mahesh@...ux.ibm.com,
 oohall@...il.com, Benjamin.Cheatham@....com, rrichter@....com,
 nathan.fontenot@....com, Smita.KoralahalliChannabasappa@....com,
 lukas@...ner.de, ming.li@...omail.com, PradeepVineshReddy.Kodamati@....com
Subject: Re: [PATCH v8 02/16] PCI/AER: Modify AER driver logging to report CXL
 or PCIe bus error type



On 3/27/2025 11:58 AM, Ira Weiny wrote:
> Terry Bowman wrote:
>> The AER service driver and aer_event tracing currently log 'PCIe Bus Type'
>> for all errors. Update the driver and aer_event tracing to log 'CXL Bus
>> Type' for CXL device errors.
>>
>> This requires the AER can identify and distinguish between PCIe errors and
>> CXL errors.
>>
>> Introduce boolean 'is_cxl' to 'struct aer_err_info'. Add assignment in
>> aer_get_device_error_info() and pci_print_aer().
>>
>> Update the aer_event trace routine to accept a bus type string parameter.
>>
>> Signed-off-by: Terry Bowman <terry.bowman@....com>
> I'm unsure how Karolina's new populate_aer_err_info() will get the new
> is_cxl flag.[1]

It looks like the Karolina's patchset and this will likely fall into the
same merge window. I will need to take a closer look and possibly make changes
for a simpler merge.

> Generally though this looks ok.
>
> Reviewed-by: Ira Weiny <ira.weiny@...el.com>
>
> [1] https://lore.kernel.org/all/81c040d54209627de2d8b150822636b415834c7f.1742900213.git.karolina.stolarek@oracle.com/
>
> [snip]
Thanks Ira.