On 2022/7/8 15:30, Greg KH wrote:
On Fri, Jul 08, 2022 at 03:08:19PM +0800, Kai Ye wrote:
Update documentation describing sysfs node that could help to
configure isolation strategy for users in the user space. And
describing sysfs node that could read the device isolated state.
Signed-off-by: Kai Ye <yekai13@xxxxxxxxxx>
---
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..a8056271a963 100644
--- a/Documentation/ABI/testing/sysfs-driver-uacce
+++ b/Documentation/ABI/testing/sysfs-driver-uacce
@@ -19,6 +19,24 @@ Contact: linux-accelerators@xxxxxxxxxxxxxxxx
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: Jul 2022
+KernelVersion: 5.20
+Contact: linux-accelerators@xxxxxxxxxxxxxxxx
+Description: A sysfs node that used to configures the hardware error
This is not a "node" it is just a file.
+ isolation strategy. This strategy is a configured integer value.
+ The default is 0. The maximum value is 65535. This value
+ indicates the number of device slot resets per unit time
+ that your service can tolerate.
I do not understand this, sorry. What do you mean by "that your service
can tolerate"?
it means the user can tolerable reset frequency, because the reset will
interrupt services.
+
+What: /sys/class/uacce/<dev_name>/isolate
+Date: Jul 2022
+KernelVersion: 5.20
+Contact: linux-accelerators@xxxxxxxxxxxxxxxx
+Description: A sysfs node that read the device isolated state. The value 0
+ means that the device is working. The value 1 means that the
+ device has been isolated.
So 1 means "not working"? This seems odd, perhaps you can rephrase this
a bit better?
1 means the device is unavailable. 0 means the device is available.
thanks,
greg k-h
.
Thanks
Kai
