From: alison.schofield@intel.com
To: Dan Williams <dan.j.williams@intel.com>,
Ira Weiny <ira.weiny@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Ben Widawsky <bwidawsk@kernel.org>,
Dave Jiang <dave.jiang@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>, linux-cxl@vger.kernel.org
Subject: [PATCH v5 0/12] cxl: CXL Inject & Clear Poison
Date: Sun, 26 Mar 2023 22:03:06 -0700 [thread overview]
Message-ID: <cover.1679892337.git.alison.schofield@intel.com> (raw)
From: Alison Schofield <alison.schofield@intel.com>
Built on cxl/next plus [PATCH v11 0/6] CXL Poison List Retrieval & Tracing
Changes in v5:
- Move the inject & clear sysfs attrs to debugfs attrs (Dan)
- Allow inject and clear to mapped DPAs and dev_warn_once()
- Add cxl_poison trace events for inject and clear (CXL Community Forum)
- Add conditional compiles for CONFIG_DEBUG_FS
- Conform to spacing in uapi header cxlmem.h (Jonathan)
Tags: Kept Jonathans Reviewed-by on, what are now, patches 6-11
Link to v4:
https://lore.kernel.org/linux-cxl/cover.1677704994.git.alison.schofield@intel.com/
Introducing Inject and Clear Poison support for CXL Devices.
These are optional commands, meaning not all CXL devices must support
them. The debugfs attributes, inject_poison and clear_poison, are only
visible for devices reporting support of the capability.
Example:
# echo 0x40000000 > /sys/kernel/debug/cxl/mem1/inject_poison
cxl_poison: memdev=mem1 pcidev=cxl_mem.1 trace_type=Inject region= region_uuid=00000000-0000-0000-0000-000000000000 hpa=0xffffffffffffffff dpa=0x40000000 length=0x40 source=Unknown flags= overflow_time=0
Example in which the injected poison landed in region5:
# echo 0x40000000 > /sys/kernel/debug/cxl/mem0/inject_poison
cxl_poison: memdev=mem0 host=cxl_mem.0 serial=0 trace_type=Inject region=region5 region_uuid=cfcfc13a-5290-4983-aa74-4c8465c25f26 hpa=0xf110000000 dpa=0x40000000 dpa_length=0x40 source=Unknown flags= overflow_time=0
Alison Schofield (12):
cxl/memdev: Add support for the Inject Poison mailbox command
cxl/memdev: Add support for the Clear Poison mailbox command
cxl/memdev: Warn of poison inject or clear to a mapped region
cxl/memdev: Trace inject and clear poison as cxl_poison events
cxl/mem: Add debugfs attributes for poison inject and clear
cxl/memdev: Make inject and clear poison cmds kernel exclusive
cxl/mbox: Block inject and clear poison opcodes in raw mode
tools/testing/cxl: Mock the Inject Poison mailbox command
tools/testing/cxl: Mock the Clear Poison mailbox command
tools/testing/cxl: Use injected poison for get poison list
tools/testing/cxl: Add a sysfs attr to test poison inject limits
tools/testing/cxl: Require CONFIG_DEBUG_FS
Documentation/ABI/testing/debugfs-cxl | 36 +++++
drivers/cxl/core/core.h | 2 +
drivers/cxl/core/mbox.c | 5 +
drivers/cxl/core/memdev.c | 179 +++++++++++++++++++++
drivers/cxl/core/trace.h | 8 +-
drivers/cxl/cxlmem.h | 13 ++
drivers/cxl/mem.c | 26 ++++
include/uapi/linux/cxl_mem.h | 20 ++-
tools/testing/cxl/config_check.c | 1 +
tools/testing/cxl/test/mem.c | 216 +++++++++++++++++++++++---
10 files changed, 479 insertions(+), 27 deletions(-)
create mode 100644 Documentation/ABI/testing/debugfs-cxl
--
2.37.3
next reply other threads:[~2023-03-27 5:03 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-27 5:03 alison.schofield [this message]
2023-03-27 5:03 ` [PATCH v5 01/12] cxl/memdev: Add support for the Inject Poison mailbox command alison.schofield
2023-03-30 18:47 ` Jonathan Cameron
2023-03-31 18:11 ` Dave Jiang
2023-03-31 18:52 ` Alison Schofield
2023-03-27 5:03 ` [PATCH v5 02/12] cxl/memdev: Add support for the Clear " alison.schofield
2023-03-30 18:50 ` Jonathan Cameron
2023-03-30 20:12 ` Alison Schofield
2023-04-03 14:08 ` Jonathan Cameron
2023-03-31 18:40 ` Dave Jiang
2023-03-31 19:55 ` Alison Schofield
2023-03-31 21:18 ` Dave Jiang
2023-03-27 5:03 ` [PATCH v5 03/12] cxl/memdev: Warn of poison inject or clear to a mapped region alison.schofield
2023-03-30 18:55 ` Jonathan Cameron
2023-04-11 17:43 ` Alison Schofield
2023-04-13 17:07 ` Jonathan Cameron
2023-03-27 5:03 ` [PATCH v5 04/12] cxl/memdev: Trace inject and clear poison as cxl_poison events alison.schofield
2023-03-30 19:03 ` Jonathan Cameron
2023-03-31 18:53 ` Dave Jiang
2023-03-27 5:03 ` [PATCH v5 05/12] cxl/mem: Add debugfs attributes for poison inject and clear alison.schofield
2023-03-30 18:58 ` Jonathan Cameron
2023-03-27 5:03 ` [PATCH v5 06/12] cxl/memdev: Make inject and clear poison cmds kernel exclusive alison.schofield
2023-03-31 19:10 ` Dave Jiang
2023-03-27 5:03 ` [PATCH v5 07/12] cxl/mbox: Block inject and clear poison opcodes in raw mode alison.schofield
2023-03-31 19:10 ` Dave Jiang
2023-03-27 5:03 ` [PATCH v5 08/12] tools/testing/cxl: Mock the Inject Poison mailbox command alison.schofield
2023-03-31 19:13 ` Dave Jiang
2023-03-27 5:03 ` [PATCH v5 09/12] tools/testing/cxl: Mock the Clear " alison.schofield
2023-03-31 19:15 ` Dave Jiang
2023-03-27 5:03 ` [PATCH v5 10/12] tools/testing/cxl: Use injected poison for get poison list alison.schofield
2023-03-31 19:16 ` Dave Jiang
2023-03-27 5:03 ` [PATCH v5 11/12] tools/testing/cxl: Add a sysfs attr to test poison inject limits alison.schofield
2023-03-31 19:18 ` Dave Jiang
2023-03-27 5:03 ` [PATCH v5 12/12] tools/testing/cxl: Require CONFIG_DEBUG_FS alison.schofield
2023-03-31 19:20 ` Dave Jiang
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