dmaengine: idxd: add sysfs ABI for idxd driver
Add the sysfs ABI information for idxd driver in Documentation/ABI/stable directory. Signed-off-by: Jing Lin <jing.lin@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/157965025170.73301.13428570530450446901.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Jing Lin
Vinod Koul
parent
c52ca47823
commit
b131ad5938
171
Documentation/ABI/stable/sysfs-driver-dma-idxd
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171
Documentation/ABI/stable/sysfs-driver-dma-idxd
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What: sys/bus/dsa/devices/dsa<m>/cdev_major
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The major number that the character device driver assigned to
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this device.
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What: sys/bus/dsa/devices/dsa<m>/errors
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The error information for this device.
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What: sys/bus/dsa/devices/dsa<m>/max_batch_size
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The largest number of work descriptors in a batch.
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What: sys/bus/dsa/devices/dsa<m>/max_work_queues_size
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The maximum work queue size supported by this device.
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What: sys/bus/dsa/devices/dsa<m>/max_engines
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The maximum number of engines supported by this device.
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What: sys/bus/dsa/devices/dsa<m>/max_groups
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The maximum number of groups can be created under this device.
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What: sys/bus/dsa/devices/dsa<m>/max_tokens
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The total number of bandwidth tokens supported by this device.
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The bandwidth tokens represent resources within the DSA
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implementation, and these resources are allocated by engines to
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support operations.
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What: sys/bus/dsa/devices/dsa<m>/max_transfer_size
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The number of bytes to be read from the source address to
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perform the operation. The maximum transfer size is dependent on
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the workqueue the descriptor was submitted to.
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What: sys/bus/dsa/devices/dsa<m>/max_work_queues
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The maximum work queue number that this device supports.
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What: sys/bus/dsa/devices/dsa<m>/numa_node
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The numa node number for this device.
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What: sys/bus/dsa/devices/dsa<m>/op_cap
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The operation capability bit mask specify the operation types
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supported by the this device.
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What: sys/bus/dsa/devices/dsa<m>/state
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The state information of this device. It can be either enabled
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or disabled.
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What: sys/bus/dsa/devices/dsa<m>/group<m>.<n>
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The assigned group under this device.
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What: sys/bus/dsa/devices/dsa<m>/engine<m>.<n>
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The assigned engine under this device.
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What: sys/bus/dsa/devices/dsa<m>/wq<m>.<n>
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The assigned work queue under this device.
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What: sys/bus/dsa/devices/dsa<m>/configurable
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: To indicate if this device is configurable or not.
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What: sys/bus/dsa/devices/dsa<m>/token_limit
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The maximum number of bandwidth tokens that may be in use at
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one time by operations that access low bandwidth memory in the
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device.
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What: sys/bus/dsa/devices/wq<m>.<n>/group_id
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The group id that this work queue belongs to.
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What: sys/bus/dsa/devices/wq<m>.<n>/size
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The work queue size for this work queue.
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What: sys/bus/dsa/devices/wq<m>.<n>/type
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The type of this work queue, it can be "kernel" type for work
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queue usages in the kernel space or "user" type for work queue
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usages by applications in user space.
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What: sys/bus/dsa/devices/wq<m>.<n>/cdev_minor
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The minor number assigned to this work queue by the character
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device driver.
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What: sys/bus/dsa/devices/wq<m>.<n>/mode
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The work queue mode type for this work queue.
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What: sys/bus/dsa/devices/wq<m>.<n>/priority
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The priority value of this work queue, it is a vlue relative to
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other work queue in the same group to control quality of service
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for dispatching work from multiple workqueues in the same group.
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What: sys/bus/dsa/devices/wq<m>.<n>/state
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The current state of the work queue.
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What: sys/bus/dsa/devices/wq<m>.<n>/threshold
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The number of entries in this work queue that may be filled
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via a limited portal.
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What: sys/bus/dsa/devices/engine<m>.<n>/group_id
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Date: Oct 25, 2019
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KernelVersion: 5.6.0
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Contact: dmaengine@vger.kernel.org
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Description: The group that this engine belongs to.
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