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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: Alison Schofield <alison.schofield@intel.com> Signed-off-by: Shiju Jose <shiju.jose@huawei.com> Signed-off-by: Li Ming <ming.li@zohomail.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Davidlohr Bueso <dave@stgolabs.net> Link: https://patch.msgid.link/20250603104314.25569-2-ming.li@zohomail.com Signed-off-by: Dave Jiang <dave.jiang@intel.com>
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@ -49,6 +49,12 @@ Description:
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(RO) Supported minimum scrub cycle duration in seconds
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by the memory scrubber.
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Device-based scrub: returns the minimum scrub cycle
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supported by the memory device.
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Region-based scrub: returns the max of minimum scrub cycles
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supported by individual memory devices that back the region.
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What: /sys/bus/edac/devices/<dev-name>/scrubX/max_cycle_duration
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Date: March 2025
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KernelVersion: 6.15
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@ -57,6 +63,16 @@ Description:
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(RO) Supported maximum scrub cycle duration in seconds
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by the memory scrubber.
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Device-based scrub: returns the maximum scrub cycle supported
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by the memory device.
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Region-based scrub: returns the min of maximum scrub cycles
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supported by individual memory devices that back the region.
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If the memory device does not provide maximum scrub cycle
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information, return the maximum supported value of the scrub
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cycle field.
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What: /sys/bus/edac/devices/<dev-name>/scrubX/current_cycle_duration
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Date: March 2025
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KernelVersion: 6.15
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