From: Shiju Jose <shiju.jose@xxxxxxxxxx>
1. Add support for CXL feature mailbox commands.
2. Add CXL device scrub driver supporting patrol scrub control and DDR5 ECS
control features.
3. Add scrub driver supports configuring memory scrubs in the system.
4. Add scrub attributes for DDR5 ECS control to the memory scrub driver.
5. Register CXL device patrol scrub and ECS with scrub control driver.
6. Add documentation for common attributes in the scrub configure driver.
7. Add documentation for CXL memory device scrub control attributes.
Changes
v3 -> v4:
1. Fixes for the warnings/errors reported by kernel test robot.
2. Add support for reading the 'enable' attribute of CXL patrol scrub.
Changes
v2 -> v3:
1. Changes for comments from Davidlohr, Thanks.
- Updated cxl scrub kconfig
- removed usage of the flag is_support_feature from
the function cxl_mem_get_supported_feature_entry().
- corrected spelling error.
- removed unnecessary debug message.
- removed export feature commands to the userspace.
2. Possible fix for the warnings/errors reported by kernel
test robot.
3. Add documentation for the common scrub configure atrributes.
v1 -> v2:
1. Changes for comments from Dave Jiang, Thanks.
- Split patches.
- reversed xmas tree declarations.
- declared flags as enums.
- removed few unnecessary variable initializations.
- replaced PTR_ERR_OR_ZERO() with IS_ERR() and PTR_ERR().
- add auto clean declarations.
- replaced while loop with for loop.
- Removed allocation from cxl_get_supported_features() and
cxl_get_feature() and make change to take allocated memory
pointer from the caller.
- replaced if/else with switch case.
- replaced sprintf() with sysfs_emit() in 2 places.
- replaced goto label with return in few functions.
2. removed unused code for supported attributes from ecs.
3. Included following common patch for scrub configure driver
to this series.
"memory: scrub: Add scrub driver supports configuring memory scrubbers
in the system"
Shiju Jose (11):
cxl/mbox: Add GET_SUPPORTED_FEATURES mailbox command
cxl/mbox: Add GET_FEATURE mailbox command
cxl/mbox: Add SET_FEATURE mailbox command
cxl/memscrub: Add CXL device patrol scrub control feature
cxl/memscrub: Add CXL device DDR5 ECS control feature
memory: scrub: Add scrub driver supports configuring memory scrubs in
the system
cxl/memscrub: Register CXL device patrol scrub with scrub configure
driver
memory: scrub: Add scrub control attributes for the DDR5 ECS
cxl/memscrub: Register CXL device DDR5 ECS with scrub configure driver
memory: scrub: sysfs: Add Documentation for set of common scrub
attributes
cxl: scrub: sysfs: Add Documentation for CXL memory device scrub
control attributes
.../testing/sysfs-class-cxl-scrub-configure | 79 ++
.../ABI/testing/sysfs-class-scrub-configure | 82 ++
drivers/cxl/Kconfig | 23 +
drivers/cxl/core/Makefile | 1 +
drivers/cxl/core/mbox.c | 59 +
drivers/cxl/core/memscrub.c | 1002 +++++++++++++++++
drivers/cxl/cxlmem.h | 120 ++
drivers/cxl/pci.c | 6 +
drivers/memory/Kconfig | 1 +
drivers/memory/Makefile | 1 +
drivers/memory/scrub/Kconfig | 11 +
drivers/memory/scrub/Makefile | 6 +
drivers/memory/scrub/memory-scrub.c | 481 ++++++++
include/memory/memory-scrub.h | 90 ++
14 files changed, 1962 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-class-cxl-scrub-configure
create mode 100644 Documentation/ABI/testing/sysfs-class-scrub-configure
create mode 100644 drivers/cxl/core/memscrub.c
create mode 100644 drivers/memory/scrub/Kconfig
create mode 100644 drivers/memory/scrub/Makefile
create mode 100755 drivers/memory/scrub/memory-scrub.c
create mode 100755 include/memory/memory-scrub.h
--
2.34.1
