linux-kernel - [PATCH v5 2/3] Documentation: add a isolation strategy sysfs node for uacce

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Date:   Fri, 8 Jul 2022 15:08:19 +0800
From:   Kai Ye <yekai13@...wei.com>
To:     <gregkh@...uxfoundation.org>, <herbert@...dor.apana.org.au>
CC:     <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <wangzhou1@...ilicon.com>, <yekai13@...wei.com>
Subject: [PATCH v5 2/3] Documentation: add a isolation strategy sysfs node for uacce

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@...wei.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..a8056271a963 100644
--- a/Documentation/ABI/testing/sysfs-driver-uacce
+++ b/Documentation/ABI/testing/sysfs-driver-uacce
@@ -19,6 +19,24 @@ Contact:        linux-accelerators@...ts.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:           Jul 2022
+KernelVersion:  5.20
+Contact:        linux-accelerators@...ts.ozlabs.org
+Description:    A sysfs node that used to configures the hardware error
+                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.
+
+What:           /sys/class/uacce/<dev_name>/isolate
+Date:           Jul 2022
+KernelVersion:  5.20
+Contact:        linux-accelerators@...ts.ozlabs.org
+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.
+
 What:           /sys/class/uacce/<dev_name>/algorithms
 Date:           Feb 2020
 KernelVersion:  5.7
-- 
2.33.0