[PATCH v5 0/8] cxl: Process event logs

From: Ira Weiny
Date: Thu Jan 05 2023 - 18:38:20 EST


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

To: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Alison Schofield <alison.schofield@xxxxxxxxx>
Cc: Vishal Verma <vishal.l.verma@xxxxxxxxx>
Cc: Ira Weiny <ira.weiny@xxxxxxxxx>
Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Cc: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Dave Jiang <dave.jiang@xxxxxxxxx>
Cc: Ben Widawsky <bwidawsk@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: linux-acpi@xxxxxxxxxxxxxxx
Cc: linux-cxl@xxxxxxxxxxxxxxx
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>

---
Changes in v5:
- Drop patch 1/9 as it was already picked up in CXL next
- Johnny/Jonathan - base clear event playload length on nr handles
- Minor clean ups
- Link to v4: https://lore.kernel.org/r/20221212070627.1372402-1-ira.weiny@xxxxxxxxx

---
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 | 187 +++++++++++++++++
drivers/cxl/core/trace.h | 479 ++++++++++++++++++++++++++++++++++++++++++
drivers/cxl/cxl.h | 16 ++
drivers/cxl/cxlmem.h | 173 +++++++++++++++
drivers/cxl/cxlpci.h | 6 +
drivers/cxl/pci.c | 237 +++++++++++++++++++++
tools/testing/cxl/test/Kbuild | 2 +-
tools/testing/cxl/test/mem.c | 352 +++++++++++++++++++++++++++++++
8 files changed, 1451 insertions(+), 1 deletion(-)
---
base-commit: 589c3357370a596ef7c99c00baca8ac799fce531
change-id: 20221216-cxl-ev-log-f06383197541

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