Re: [PATCH v1 2/2] cxl/Documentation: Add more description about min/max scrub cycle

From: Dave Jiang
Date: Tue Jun 03 2025 - 18:41:29 EST




On 6/3/25 3:43 AM, Li Ming wrote:
> user can configurare scrub cycle for a region or a memory device via

s/configurare/configure/

> 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@xxxxxxxxx>
> Signed-off-by: Shiju Jose <shiju.jose@xxxxxxxxxx>
> Signed-off-by: Li Ming <ming.li@xxxxxxxxxxxx>

Reviewed-by: Dave Jiang <dave.jiang@xxxxxxxxx>

> ---
> Documentation/ABI/testing/sysfs-edac-scrub | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-edac-scrub b/Documentation/ABI/testing/sysfs-edac-scrub
> index c43be90deab4..ab6014743da5 100644
> --- a/Documentation/ABI/testing/sysfs-edac-scrub
> +++ b/Documentation/ABI/testing/sysfs-edac-scrub
> @@ -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