Messages in this thread | | | From | alison.schofield@intel ... | Subject | [PATCH v8 0/6] CXL Poison List Retrieval & Tracing | Date | Fri, 10 Mar 2023 09:54:14 -0800 |
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From: Alison Schofield <alison.schofield@intel.com>
Changes in v8:
Patch 4: cxl/region: Provide region info to the cxl_poison trace event - Don't percolate non-error rc in trigger_poison_list_store() (Jonathan) - Use the entire dpa_res, not pmem_res, when calculating remaining length after a PMEM decoder. (Jonathan) - Calculate skip relative to current endpoint. (Jonathan) - Always use local vars for offset & length (Tidy-up)
Patch 3: cxl/memdev: Add trigger_poison_list sysfs attribute - Update dates and version in Patch 3: ABI doc (Jonathan) - Added Jonathan Reviewed-by to Patch 3 (Jonathan)
Link to v7: https://lore.kernel.org/linux-cxl/cover.1676685180.git.alison.schofield@intel.com/#r
Add support for retrieving device poison lists and store the returned error records as kernel trace events.
The handling of the poison list is guided by the CXL 3.0 Specification Section 8.2.9.8.4.1. [1]
Example: $ echo 1 > /sys/bus/cxl/devices/mem0/trigger_poison_list cxl_poison: memdev=mem0 host=cxl_mem.0 serial=0 region=region4 region_uuid=117b2cf4-b160-4090-9361-ba31b9649317 hpa=0xf0d0000000 dpa=0x40000000 length=0x40 source=Internal flags= overflow_time=0
[1]: https://www.computeexpresslink.org/download-the-specification
Alison Schofield (6): cxl/mbox: Add GET_POISON_LIST mailbox command cxl/trace: Add TRACE support for CXL media-error records cxl/memdev: Add trigger_poison_list sysfs attribute cxl/region: Provide region info to the cxl_poison trace event cxl/trace: Add an HPA to cxl_poison trace events tools/testing/cxl: Mock support for Get Poison List
Documentation/ABI/testing/sysfs-bus-cxl | 14 ++++ drivers/cxl/core/core.h | 5 ++ drivers/cxl/core/mbox.c | 74 +++++++++++++++++++ drivers/cxl/core/memdev.c | 71 ++++++++++++++++++ drivers/cxl/core/region.c | 96 +++++++++++++++++++++++++ drivers/cxl/core/trace.c | 94 ++++++++++++++++++++++++ drivers/cxl/core/trace.h | 91 +++++++++++++++++++++++ drivers/cxl/cxlmem.h | 69 +++++++++++++++++- drivers/cxl/pci.c | 4 ++ tools/testing/cxl/test/mem.c | 42 +++++++++++ 10 files changed, 559 insertions(+), 1 deletion(-)
base-commit: e686c32590f40bffc45f105c04c836ffad3e531a -- 2.37.3
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