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SubjectRe: [PATCH v4 2/3] Documentation: add a isolation strategy sysfs node for uacce
On Thu, Jun 23, 2022 at 02:14:51PM +0800, Kai Ye wrote:
> Update documentation describing sysfs node that could help to
> configure isolation method command for users in th user space.
>
> Signed-off-by: Kai Ye <yekai13@huawei.com>
> ---
> Documentation/ABI/testing/sysfs-driver-uacce | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-driver-uacce b/Documentation/ABI/testing/sysfs-driver-uacce
> index 08f2591138af..8784efa96e01 100644
> --- a/Documentation/ABI/testing/sysfs-driver-uacce
> +++ b/Documentation/ABI/testing/sysfs-driver-uacce
> @@ -19,6 +19,24 @@ Contact: linux-accelerators@lists.ozlabs.org
> Description: Available instances left of the device
> Return -ENODEV if uacce_ops get_available_instances is not provided
>
> +What: /sys/class/uacce/<dev_name>/isolate_strategy
> +Date: Jun 2022
> +KernelVersion: 5.20
> +Contact: linux-accelerators@lists.ozlabs.org
> +Description: A sysfs node that used to configures the hardware error
> + isolation method command. The command can be parsed
> + in correct driver. e.g. If the device slot reset frequency
> + exceeds the preset value in a time window, the device will be
> + isolated.

What is the "command"? What is being parsed? This needs to be
documented a lot more here, this is very vague and not obvious at all.


> +
> +What: /sys/class/uacce/<dev_name>/isolate
> +Date: Jun 2022
> +KernelVersion: 5.20
> +Contact: linux-accelerators@lists.ozlabs.org
> +Description: A sysfs node that show the device isolated state. The value 0
> + means that the device is working. The value 1 means that the
> + device has been isolated.

Are these read-only? Write only? read/write?

thanks,

greg k-h

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