Commit 85cc50bf authored by Li Ming's avatar Li Ming Committed by Dave Jiang
Browse files

cxl/Documentation: Add more description about min/max scrub cycle 



user can configurare scrub cycle for a region or a memory device via
sysfs interface. Currently, these interfaces have not enough description
for the return value. So adding return value description to these
interfaces.

Suggested-by: default avatarAlison Schofield <alison.schofield@intel.com>
Signed-off-by: default avatarShiju Jose <shiju.jose@huawei.com>
Signed-off-by: default avatarLi Ming <ming.li@zohomail.com>
Reviewed-by: default avatarJonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: default avatarDave Jiang <dave.jiang@intel.com>
Reviewed-by: default avatarDavidlohr Bueso <dave@stgolabs.net>
Link: https://patch.msgid.link/20250603104314.25569-2-ming.li@zohomail.com


Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
parent fdc9be90

Documentation/ABI/testing/sysfs-edac-scrub

+16 −0
Original line number Diff line number Diff line
@@ -49,6 +49,12 @@ Description: 
		(RO) Supported minimum scrub cycle duration in seconds

		by the memory scrubber.



		Device-based scrub: returns the minimum scrub cycle

		supported by the memory device.



		Region-based scrub: returns the max of minimum scrub cycles

		supported by individual memory devices that back the region.



What:		/sys/bus/edac/devices/<dev-name>/scrubX/max_cycle_duration

Date:		March 2025

KernelVersion:	6.15
@@ -57,6 +63,16 @@ Description: 
		(RO) Supported maximum scrub cycle duration in seconds

		by the memory scrubber.



		Device-based scrub: returns the maximum scrub cycle supported

		by the memory device.



		Region-based scrub: returns the min of maximum scrub cycles

		supported by individual memory devices that back the region.



		If the memory device does not provide maximum scrub cycle

		information, return the maximum supported value of the scrub

		cycle field.



What:		/sys/bus/edac/devices/<dev-name>/scrubX/current_cycle_duration

Date:		March 2025

KernelVersion:	6.15