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SubjectRe: [PATCH v2 2/3] Documentation: add a isolation strategy vfs node for uacce
On Tue, Jun 14, 2022 at 08:29:39PM +0800, Kai Ye wrote:
> Update documentation describing DebugFS that could help to
> configure hard error frequency for users in th user space.
>
> Signed-off-by: Kai Ye <yekai13@huawei.com>
> ---
> Documentation/ABI/testing/sysfs-driver-uacce | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-driver-uacce b/Documentation/ABI/testing/sysfs-driver-uacce
> index 08f2591138af..0c4226364182 100644
> --- a/Documentation/ABI/testing/sysfs-driver-uacce
> +++ b/Documentation/ABI/testing/sysfs-driver-uacce
> @@ -19,6 +19,23 @@ 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: 5.19
> +Contact: linux-accelerators@lists.ozlabs.org
> +Description: A vfs node that used to configures the hardware

What is a "vfs node"?

> + error frequency. This frequency is abstract. Like once an hour
> + or once a day. The specific isolation strategy can be defined in
> + each driver module.

No, you need to be specific here and describe the units and the format.
Otherwise it is no description at all :(

> +
> +What: /sys/class/uacce/<dev_name>/isolate
> +Date: Jun 2022
> +KernelVersion: 5.19

5.19 will not have this change.

> +Contact: linux-accelerators@lists.ozlabs.org
> +Description: A vfs 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.

What does "working" or "isolated" mean?

thanks,

greg k-h

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