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Documentation: add the device isolation feature sysfs nodes for uacce

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Update documentation describing sysfs node that could help to
configure hardware error threshold for users in the user space. And
describing sysfs node that could read the device isolated state.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Link: https://lore.kernel.org/r/20221119074817.12063-3-yekai13@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Kai Ye 2022-11-19 07:48:16 +00:00 committed by Greg Kroah-Hartman
parent e3e289fbc0
commit f65ccb82f5
1 changed files with 18 additions and 0 deletions
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18
Documentation/ABI/testing/sysfs-driver-uacce
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@ -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: Nov 2022
KernelVersion: 6.1
Contact: linux-accelerators@lists.ozlabs.org
Description: (RW) A sysfs node that configure the error threshold for the hardware
isolation strategy. This size is a configured integer value, which is the
number of threshold for hardware errors occurred in one hour. The default is 0.
0 means never isolate the device. The maximum value is 65535. You can write
a number of threshold based on your hardware.
What: /sys/class/uacce/<dev_name>/isolate
Date: Nov 2022
KernelVersion: 6.1
Contact: linux-accelerators@lists.ozlabs.org
Description: (R) A sysfs node that read the device isolated state. The value 1
means the device is unavailable. The 0 means the device is
available.
What: /sys/class/uacce/<dev_name>/algorithms
Date: Feb 2020
KernelVersion: 5.7