linux-kernel - Re: [PATCH 0/2] efi/cper, cxl: Decode CXL Protocol Errors CPER

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Message-ID: <151c093f-1e92-1c8e-957b-8781e488626a@amd.com>
Date:   Tue, 25 Oct 2022 16:55:24 -0700
From:   Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
To:     Dan Williams <dan.j.williams@...el.com>, linux-cxl@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Ben Widawsky <bwidawsk@...nel.org>,
        Robert Richter <rrichter@....com>,
        Yazen Ghannam <yazen.ghannam@....com>,
        Terry Bowman <terry.bowman@....com>,
        Ard Biesheuvel <ardb@...nel.org>
Subject: Re: [PATCH 0/2] efi/cper, cxl: Decode CXL Protocol Errors CPER

Hi Dan,

On 10/21/2022 3:18 PM, Dan Williams wrote:
> Hi Smita,
>
> Smita Koralahalli wrote:
>> This series adds decoding for the CXL Protocol Errors Common Platform
>> Error Record.
> Be sure to copy Ard Biesheuvel <ardb@...nel.org>, added, on
> drivers/firmware/efi/ patches.
>
> Along those lines, drivers/cxl/ developers have an idea of what is
> contained in the new CXL protocol error records and why Linux might want
> to decode them, others from outside drivers/cxl/ might not. It always
> helps to have a small summary of the benefit to end users of the
> motivation to apply a patch set.

Sure, will include in my v2.

>
>> Smita Koralahalli (2):
>>    efi/cper, cxl: Decode CXL Protocol Error Section
>>    efi/cper, cxl: Decode CXL Error Log
>>
>>   drivers/firmware/efi/Makefile   |   2 +-
>>   drivers/firmware/efi/cper.c     |   9 +++
>>   drivers/firmware/efi/cper_cxl.c | 108 ++++++++++++++++++++++++++++++++
>>   drivers/firmware/efi/cper_cxl.h |  58 +++++++++++++++++
>>   include/linux/cxl_err.h         |  21 +++++++
>>   5 files changed, 197 insertions(+), 1 deletion(-)
> I notice no updates for the trace events in ghes_do_proc(), is that next
> in your queue? That's ok to be a follow-on after v2.

Sorry, if I haven't understood this right. Are you implying about the 
"handling"
of cxl memory errors in ghes_do_proc() or is it just copying of CPER 
entries to
tracepoints?

Thanks,
Smita