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    SubjectRe: [PATCH v4 2/3] Documentation: add a isolation strategy sysfs node for uacce
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    On 2022/6/23 17:01, Greg KH wrote:
    > 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.
    >
    >

    This command is a string command issued by the user. After the command
    is configured, the acc driver parses the command.
    >> +
    >> +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?

    this node is read-only
    >
    > thanks,
    >
    > greg k-h
    > .
    >

    Thanks
    Kai

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