1 What: sys/bus/dsa/devices/dsa<m>/version
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5 Description: The hardware version number.
7 What: sys/bus/dsa/devices/dsa<m>/cdev_major
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11 Description: The major number that the character device driver assigned to
14 What: sys/bus/dsa/devices/dsa<m>/errors
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18 Description: The error information for this device.
20 What: sys/bus/dsa/devices/dsa<m>/max_batch_size
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24 Description: The largest number of work descriptors in a batch.
26 What: sys/bus/dsa/devices/dsa<m>/max_work_queues_size
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30 Description: The maximum work queue size supported by this device.
32 What: sys/bus/dsa/devices/dsa<m>/max_engines
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36 Description: The maximum number of engines supported by this device.
38 What: sys/bus/dsa/devices/dsa<m>/max_groups
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42 Description: The maximum number of groups can be created under this device.
44 What: sys/bus/dsa/devices/dsa<m>/max_tokens
47 Contact: dmaengine@vger.kernel.org
48 Description: The total number of bandwidth tokens supported by this device.
49 The bandwidth tokens represent resources within the DSA
50 implementation, and these resources are allocated by engines to
53 What: sys/bus/dsa/devices/dsa<m>/max_transfer_size
56 Contact: dmaengine@vger.kernel.org
57 Description: The number of bytes to be read from the source address to
58 perform the operation. The maximum transfer size is dependent on
59 the workqueue the descriptor was submitted to.
61 What: sys/bus/dsa/devices/dsa<m>/max_work_queues
64 Contact: dmaengine@vger.kernel.org
65 Description: The maximum work queue number that this device supports.
67 What: sys/bus/dsa/devices/dsa<m>/numa_node
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71 Description: The numa node number for this device.
73 What: sys/bus/dsa/devices/dsa<m>/op_cap
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77 Description: The operation capability bit mask specify the operation types
78 supported by the this device.
80 What: sys/bus/dsa/devices/dsa<m>/state
83 Contact: dmaengine@vger.kernel.org
84 Description: The state information of this device. It can be either enabled
87 What: sys/bus/dsa/devices/dsa<m>/group<m>.<n>
90 Contact: dmaengine@vger.kernel.org
91 Description: The assigned group under this device.
93 What: sys/bus/dsa/devices/dsa<m>/engine<m>.<n>
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97 Description: The assigned engine under this device.
99 What: sys/bus/dsa/devices/dsa<m>/wq<m>.<n>
102 Contact: dmaengine@vger.kernel.org
103 Description: The assigned work queue under this device.
105 What: sys/bus/dsa/devices/dsa<m>/configurable
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109 Description: To indicate if this device is configurable or not.
111 What: sys/bus/dsa/devices/dsa<m>/token_limit
114 Contact: dmaengine@vger.kernel.org
115 Description: The maximum number of bandwidth tokens that may be in use at
116 one time by operations that access low bandwidth memory in the
119 What: sys/bus/dsa/devices/wq<m>.<n>/group_id
122 Contact: dmaengine@vger.kernel.org
123 Description: The group id that this work queue belongs to.
125 What: sys/bus/dsa/devices/wq<m>.<n>/size
128 Contact: dmaengine@vger.kernel.org
129 Description: The work queue size for this work queue.
131 What: sys/bus/dsa/devices/wq<m>.<n>/type
134 Contact: dmaengine@vger.kernel.org
135 Description: The type of this work queue, it can be "kernel" type for work
136 queue usages in the kernel space or "user" type for work queue
137 usages by applications in user space.
139 What: sys/bus/dsa/devices/wq<m>.<n>/cdev_minor
142 Contact: dmaengine@vger.kernel.org
143 Description: The minor number assigned to this work queue by the character
146 What: sys/bus/dsa/devices/wq<m>.<n>/mode
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150 Description: The work queue mode type for this work queue.
152 What: sys/bus/dsa/devices/wq<m>.<n>/priority
155 Contact: dmaengine@vger.kernel.org
156 Description: The priority value of this work queue, it is a vlue relative to
157 other work queue in the same group to control quality of service
158 for dispatching work from multiple workqueues in the same group.
160 What: sys/bus/dsa/devices/wq<m>.<n>/state
163 Contact: dmaengine@vger.kernel.org
164 Description: The current state of the work queue.
166 What: sys/bus/dsa/devices/wq<m>.<n>/threshold
169 Contact: dmaengine@vger.kernel.org
170 Description: The number of entries in this work queue that may be filled
171 via a limited portal.
173 What: sys/bus/dsa/devices/engine<m>.<n>/group_id
176 Contact: dmaengine@vger.kernel.org
177 Description: The group that this engine belongs to.