linux-kernel - Re: [PATCH V4 0/9] CXL: Process event logs

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Message-ID: <639ca459102ad_b41e3294c7@dwillia2-xfh.jf.intel.com.notmuch>
Date:   Fri, 16 Dec 2022 09:01:13 -0800
From:   Dan Williams <dan.j.williams@...el.com>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        <ira.weiny@...el.com>
CC:     Dan Williams <dan.j.williams@...el.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Alison Schofield <alison.schofield@...el.com>,
        "Vishal Verma" <vishal.l.verma@...el.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        "Dave Jiang" <dave.jiang@...el.com>,
        <linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        <linux-acpi@...r.kernel.org>, <linux-cxl@...r.kernel.org>
Subject: Re: [PATCH V4 0/9] CXL: Process event logs

Jonathan Cameron wrote:
> On Sun, 11 Dec 2022 23:06:18 -0800
> ira.weiny@...el.com wrote:
> 
> > From: Ira Weiny <ira.weiny@...el.com>
> > 
> > This code has been tested with a newer qemu which allows for more events to be
> > returned at a time as well an additional QMP event and interrupt injection.
> > Those patches will follow once they have been cleaned up.
> > 
> > The series is now in 3 parts:
> > 
> > 	1) Base functionality including interrupts
> > 	2) Tracing specific events (Dynamic Capacity Event Record is defered)
> > 	3) cxl-test infrastructure for basic tests
> > 
> > Changes from V3
> > 	Feedback from Dan
> > 	Spit out ACPI changes for Bjorn
> > 
> > - Link to v3: https://lore.kernel.org/all/20221208052115.800170-1-ira.weiny@intel.com/
> 
> Because I'm in a grumpy mood (as my colleagues will attest!)...
> This is dependent on the patch that moves the trace definitions and
> that's not upstream yet except in cxl/preview which is optimistic
> place to use for a base commit.  The id isn't the one below either which
> isn't in either mailine or the current CXL trees.

I do not want to commit to a new baseline until after -rc1, so yes this
is in a messy period.

> Not that I actually checked the cover letter until it failed to apply
> (and hence already knew what was missing) but still, please call out
> dependencies unless they are in the branches Dan has queued up to push.
> 
> I just want to play with Dave's fix for the RAS errors so having to jump
> through these other sets.

Yes, that is annoying, apologies.

> 
> Thanks,
> 
> Jonathan
> 
> > 
> > 
> > Davidlohr Bueso (1):
> >   cxl/mem: Wire up event interrupts
> > 
> > Ira Weiny (8):
> >   PCI/CXL: Export native CXL error reporting control
> >   cxl/mem: Read, trace, and clear events on driver load
> >   cxl/mem: Trace General Media Event Record
> >   cxl/mem: Trace DRAM Event Record
> >   cxl/mem: Trace Memory Module Event Record
> >   cxl/test: Add generic mock events
> >   cxl/test: Add specific events
> >   cxl/test: Simulate event log overflow
> > 
> >  drivers/acpi/pci_root.c       |   3 +
> >  drivers/cxl/core/mbox.c       | 186 +++++++++++++
> >  drivers/cxl/core/trace.h      | 479 ++++++++++++++++++++++++++++++++++
> >  drivers/cxl/cxl.h             |  16 ++
> >  drivers/cxl/cxlmem.h          | 171 ++++++++++++
> >  drivers/cxl/cxlpci.h          |   6 +
> >  drivers/cxl/pci.c             | 236 +++++++++++++++++
> >  drivers/pci/probe.c           |   1 +
> >  include/linux/pci.h           |   1 +
> >  tools/testing/cxl/test/Kbuild |   2 +-
> >  tools/testing/cxl/test/mem.c  | 352 +++++++++++++++++++++++++
> >  11 files changed, 1452 insertions(+), 1 deletion(-)
> > 
> > 
> > base-commit: acb704099642bc822ef2aed223a0b8db1f7ea76e
> 

I think going forward these base-commits need to be something that are
reachable on cxl.git. For now I have pushed out a baseline for both Dave
and Ira's patches to cxl/preview which will rebase after -rc1 comes out.

Just the small matter of needing some acks/reviews on those lead in
patches so I can move them to through cxl/pending to cxl/next:

http://lore.kernel.org/r/167051869176.436579.9728373544811641087.stgit@dwillia2-xfh.jf.intel.com
http://lore.kernel.org/r/20221212070627.1372402-2-ira.weiny@intel.com