Messages in this thread | | | From | ira.weiny@intel ... | Subject | [RFC V2 PATCH 00/11] CXL: Process event logs | Date | Mon, 10 Oct 2022 15:41:20 -0700 |
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From: Ira Weiny <ira.weiny@intel.com>
Changes from RFC v1 Add event irqs General simplification of the code. Resolve field alignment questions Update to rev 3.0 for comments and structures Add reserved fields and output them
Event records inform the OS of various device events. Events are not needed for any kernel operation but various user level software will want to track events.
Add event reporting through the trace event mechanism. On driver load read and clear all device events.
Enable all event logs for interrupts and process each log on interrupt.
Testing of this was performed with additions to QEMU posted here:
https://lore.kernel.org/all/20221010222944.3923556-1-ira.weiny@intel.com/
Ira Weiny (11): cxl/mbox: Add debug of hardware error code cxl/mem: Implement Get Event Records command cxl/mem: Implement Clear Event Records command cxl/mem: 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 cxl/mem: Wire up event interrupts
MAINTAINERS | 1 + drivers/cxl/core/mbox.c | 186 ++++++++++++- drivers/cxl/cxlmem.h | 193 +++++++++++++ drivers/cxl/pci.c | 154 ++++++++++ include/trace/events/cxl.h | 478 ++++++++++++++++++++++++++++++++ include/uapi/linux/cxl_mem.h | 4 + tools/testing/cxl/test/Kbuild | 2 +- tools/testing/cxl/test/events.c | 329 ++++++++++++++++++++++ tools/testing/cxl/test/events.h | 9 + tools/testing/cxl/test/mem.c | 34 +++ 10 files changed, 1388 insertions(+), 2 deletions(-) create mode 100644 include/trace/events/cxl.h create mode 100644 tools/testing/cxl/test/events.c create mode 100644 tools/testing/cxl/test/events.h
base-commit: e2302539dd4f1c62d96651c07ddb05aa2461d29c -- 2.37.2
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