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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>
58 lines
2.4 KiB
Plaintext
58 lines
2.4 KiB
Plaintext
What: /sys/class/uacce/<dev_name>/api
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Date: Feb 2020
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KernelVersion: 5.7
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Contact: linux-accelerators@lists.ozlabs.org
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Description: Api of the device
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Can be any string and up to userspace to parse.
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Application use the api to match the correct driver
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What: /sys/class/uacce/<dev_name>/flags
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Date: Feb 2020
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KernelVersion: 5.7
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Contact: linux-accelerators@lists.ozlabs.org
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Description: Attributes of the device, see UACCE_DEV_xxx flag defined in uacce.h
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What: /sys/class/uacce/<dev_name>/available_instances
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Date: Feb 2020
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KernelVersion: 5.7
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Contact: linux-accelerators@lists.ozlabs.org
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Description: Available instances left of the device
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Return -ENODEV if uacce_ops get_available_instances is not provided
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What: /sys/class/uacce/<dev_name>/isolate_strategy
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Date: Nov 2022
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KernelVersion: 6.1
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Contact: linux-accelerators@lists.ozlabs.org
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Description: (RW) A sysfs node that configure the error threshold for the hardware
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isolation strategy. This size is a configured integer value, which is the
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number of threshold for hardware errors occurred in one hour. The default is 0.
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0 means never isolate the device. The maximum value is 65535. You can write
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a number of threshold based on your hardware.
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What: /sys/class/uacce/<dev_name>/isolate
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Date: Nov 2022
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KernelVersion: 6.1
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Contact: linux-accelerators@lists.ozlabs.org
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Description: (R) A sysfs node that read the device isolated state. The value 1
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means the device is unavailable. The 0 means the device is
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available.
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What: /sys/class/uacce/<dev_name>/algorithms
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Date: Feb 2020
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KernelVersion: 5.7
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Contact: linux-accelerators@lists.ozlabs.org
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Description: Algorithms supported by this accelerator, separated by new line.
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Can be any string and up to userspace to parse.
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What: /sys/class/uacce/<dev_name>/region_mmio_size
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Date: Feb 2020
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KernelVersion: 5.7
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Contact: linux-accelerators@lists.ozlabs.org
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Description: Size (bytes) of mmio region queue file
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What: /sys/class/uacce/<dev_name>/region_dus_size
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Date: Feb 2020
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KernelVersion: 5.7
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Contact: linux-accelerators@lists.ozlabs.org
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Description: Size (bytes) of dus region queue file
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