linux-kernel - [PATCH v7 0/8] cxl: Process event logs

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Date:   Tue, 17 Jan 2023 21:53:36 -0800
From:   Ira Weiny <ira.weiny@...el.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ben Widawsky <bwidawsk@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-cxl@...r.kernel.org,
        Bjorn Helgaas <helgaas@...nel.org>
Subject: [PATCH v7 0/8] cxl: Process event logs

CXL devices have multiple event logs which can be queried for CXL event
records.

Add event log processing and cxl-test infrastructure.  In addition to cxl-test,
this code has been tested with the qemu patches posted here:

https://lore.kernel.org/all/20221221-ira-cxl-events-2022-11-17-v2-0-2ce2ecc06219@intel.com/

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

To: Dan Williams <dan.j.williams@...el.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Alison Schofield <alison.schofield@...el.com>
Cc: Vishal Verma <vishal.l.verma@...el.com>
Cc: Ira Weiny <ira.weiny@...el.com>
Cc: Davidlohr Bueso <dave@...olabs.net>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc: Dave Jiang <dave.jiang@...el.com>
Cc: Ben Widawsky <bwidawsk@...nel.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: linux-kernel@...r.kernel.org
Cc: linux-pci@...r.kernel.org
Cc: linux-acpi@...r.kernel.org
Cc: linux-cxl@...r.kernel.org
Signed-off-by: Ira Weiny <ira.weiny@...el.com>

---
Changes in v7:
- Jonathan: Address minor comments on V6
- Link to v6: https://lore.kernel.org/r/20221216-cxl-ev-log-v6-0-346583105b30@intel.com

---
Davidlohr Bueso (1):
      cxl/mem: Wire up event interrupts

Ira Weiny (7):
      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/cxl/core/mbox.c       | 198 +++++++++++++++++
 drivers/cxl/core/trace.h      | 479 ++++++++++++++++++++++++++++++++++++++++++
 drivers/cxl/cxl.h             |  16 ++
 drivers/cxl/cxlmem.h          | 166 +++++++++++++++
 drivers/cxl/cxlpci.h          |   6 +
 drivers/cxl/pci.c             | 243 +++++++++++++++++++++
 tools/testing/cxl/test/Kbuild |   2 +-
 tools/testing/cxl/test/mem.c  | 352 +++++++++++++++++++++++++++++++
 8 files changed, 1461 insertions(+), 1 deletion(-)
---
base-commit: 589c3357370a596ef7c99c00baca8ac799fce531
change-id: 20221216-cxl-ev-log-f06383197541

Best regards,
-- 
Ira Weiny <ira.weiny@...el.com>