1 What: /sys/bus/dsa/devices/dsa<m>/ve
2 Date: Apr 15, 2020
3 KernelVersion: 5.8.0
4 Contact: dmaengine@vger.kernel.org
5 Description: The hardware version number.
6
7 What: /sys/bus/dsa/devices/dsa<m>/cd
8 Date: Oct 25, 2019
9 KernelVersion: 5.6.0
10 Contact: dmaengine@vger.kernel.org
11 Description: The major number that the char
12 this device.
13
14 What: /sys/bus/dsa/devices/dsa<m>/er
15 Date: Oct 25, 2019
16 KernelVersion: 5.6.0
17 Contact: dmaengine@vger.kernel.org
18 Description: The error information for this
19
20 What: /sys/bus/dsa/devices/dsa<m>/ma
21 Date: Oct 25, 2019
22 KernelVersion: 5.6.0
23 Contact: dmaengine@vger.kernel.org
24 Description: The largest number of work des
25 It's not visible when the devi
26
27 What: /sys/bus/dsa/devices/dsa<m>/ma
28 Date: Oct 25, 2019
29 KernelVersion: 5.6.0
30 Contact: dmaengine@vger.kernel.org
31 Description: The maximum work queue size su
32
33 What: /sys/bus/dsa/devices/dsa<m>/ma
34 Date: Oct 25, 2019
35 KernelVersion: 5.6.0
36 Contact: dmaengine@vger.kernel.org
37 Description: The maximum number of engines
38
39 What: /sys/bus/dsa/devices/dsa<m>/ma
40 Date: Oct 25, 2019
41 KernelVersion: 5.6.0
42 Contact: dmaengine@vger.kernel.org
43 Description: The maximum number of groups c
44
45 What: /sys/bus/dsa/devices/dsa<m>/ma
46 Date: Dec 10, 2021
47 KernelVersion: 5.17.0
48 Contact: dmaengine@vger.kernel.org
49 Description: The total number of read buffe
50 The read buffers represent res
51 implementation, and these reso
52 support operations. See DSA sp
53 It's not visible when the devi
54 allocation control.
55
56 What: /sys/bus/dsa/devices/dsa<m>/ma
57 Date: Oct 25, 2019
58 KernelVersion: 5.6.0
59 Contact: dmaengine@vger.kernel.org
60 Description: The number of bytes to be read
61 perform the operation. The max
62 the workqueue the descriptor w
63
64 What: /sys/bus/dsa/devices/dsa<m>/ma
65 Date: Oct 25, 2019
66 KernelVersion: 5.6.0
67 Contact: dmaengine@vger.kernel.org
68 Description: The maximum work queue number
69
70 What: /sys/bus/dsa/devices/dsa<m>/nu
71 Date: Oct 25, 2019
72 KernelVersion: 5.6.0
73 Contact: dmaengine@vger.kernel.org
74 Description: The numa node number for this
75
76 What: /sys/bus/dsa/devices/dsa<m>/op
77 Date: Oct 25, 2019
78 KernelVersion: 5.6.0
79 Contact: dmaengine@vger.kernel.org
80 Description: The operation capability bit m
81 supported by the this device.
82
83 What: /sys/bus/dsa/devices/dsa<m>/pa
84 Date: Oct 27, 2020
85 KernelVersion: 5.11.0
86 Contact: dmaengine@vger.kernel.org
87 Description: To indicate if user PASID (pro
88 enabled or not for this device
89
90 What: /sys/bus/dsa/devices/dsa<m>/st
91 Date: Oct 25, 2019
92 KernelVersion: 5.6.0
93 Contact: dmaengine@vger.kernel.org
94 Description: The state information of this
95 or disabled.
96
97 What: /sys/bus/dsa/devices/dsa<m>/gr
98 Date: Oct 25, 2019
99 KernelVersion: 5.6.0
100 Contact: dmaengine@vger.kernel.org
101 Description: The assigned group under this
102
103 What: /sys/bus/dsa/devices/dsa<m>/en
104 Date: Oct 25, 2019
105 KernelVersion: 5.6.0
106 Contact: dmaengine@vger.kernel.org
107 Description: The assigned engine under this
108
109 What: /sys/bus/dsa/devices/dsa<m>/wq
110 Date: Oct 25, 2019
111 KernelVersion: 5.6.0
112 Contact: dmaengine@vger.kernel.org
113 Description: The assigned work queue under
114
115 What: /sys/bus/dsa/devices/dsa<m>/co
116 Date: Oct 25, 2019
117 KernelVersion: 5.6.0
118 Contact: dmaengine@vger.kernel.org
119 Description: To indicate if this device is
120
121 What: /sys/bus/dsa/devices/dsa<m>/re
122 Date: Dec 10, 2021
123 KernelVersion: 5.17.0
124 Contact: dmaengine@vger.kernel.org
125 Description: The maximum number of read buf
126 one time by operations that ac
127 device. See DSA spec v1.2 9.2.
128 It's not visible when the devi
129 allocation control.
130
131 What: /sys/bus/dsa/devices/dsa<m>/cm
132 Date: Aug 28, 2020
133 KernelVersion: 5.10.0
134 Contact: dmaengine@vger.kernel.org
135 Description: The last executed device admin
136 Also last configuration error
137 Writing to it will clear the s
138
139 What: /sys/bus/dsa/devices/dsa<m>/ia
140 Date: Sept 14, 2022
141 KernelVersion: 6.0.0
142 Contact: dmaengine@vger.kernel.org
143 Description: IAA (IAX) capability mask. Exp
144 consumption. This attribute sh
145 that are version 2 or later.
146
147 What: /sys/bus/dsa/devices/dsa<m>/ev
148 Date: Sept 14, 2022
149 KernelVersion: 6.4.0
150 Contact: dmaengine@vger.kernel.org
151 Description: The event log size to be confi
152 occupies 4k size if the evl en
153 only on platforms that support
154
155 What: /sys/bus/dsa/devices/wq<m>.<n>
156 Date: Oct 27, 2020
157 KernelVersion: 5.11.0
158 Contact: dmaengine@vger.kernel.org
159 Description: To indicate block on fault is
160 to support on demand paging.
161
162 What: /sys/bus/dsa/devices/wq<m>.<n>
163 Date: Oct 25, 2019
164 KernelVersion: 5.6.0
165 Contact: dmaengine@vger.kernel.org
166 Description: The group id that this work qu
167
168 What: /sys/bus/dsa/devices/wq<m>.<n>
169 Date: Oct 25, 2019
170 KernelVersion: 5.6.0
171 Contact: dmaengine@vger.kernel.org
172 Description: The work queue size for this w
173
174 What: /sys/bus/dsa/devices/wq<m>.<n>
175 Date: Oct 25, 2019
176 KernelVersion: 5.6.0
177 Contact: dmaengine@vger.kernel.org
178 Description: The type of this work queue, i
179 queue usages in the kernel spa
180 usages by applications in user
181
182 What: /sys/bus/dsa/devices/wq<m>.<n>
183 Date: Oct 25, 2019
184 KernelVersion: 5.6.0
185 Contact: dmaengine@vger.kernel.org
186 Description: The minor number assigned to t
187 device driver.
188
189 What: /sys/bus/dsa/devices/wq<m>.<n>
190 Date: Oct 25, 2019
191 KernelVersion: 5.6.0
192 Contact: dmaengine@vger.kernel.org
193 Description: The work queue mode type for t
194
195 What: /sys/bus/dsa/devices/wq<m>.<n>
196 Date: Oct 25, 2019
197 KernelVersion: 5.6.0
198 Contact: dmaengine@vger.kernel.org
199 Description: The priority value of this wor
200 other work queue in the same g
201 for dispatching work from mult
202
203 What: /sys/bus/dsa/devices/wq<m>.<n>
204 Date: Oct 25, 2019
205 KernelVersion: 5.6.0
206 Contact: dmaengine@vger.kernel.org
207 Description: The current state of the work
208
209 What: /sys/bus/dsa/devices/wq<m>.<n>
210 Date: Oct 25, 2019
211 KernelVersion: 5.6.0
212 Contact: dmaengine@vger.kernel.org
213 Description: The number of entries in this
214 via a limited portal.
215
216 What: /sys/bus/dsa/devices/wq<m>.<n>
217 Date: Aug 28, 2020
218 KernelVersion: 5.10.0
219 Contact: dmaengine@vger.kernel.org
220 Description: The max transfer sized for thi
221 max transfer size. Configurabl
222
223 What: /sys/bus/dsa/devices/wq<m>.<n>
224 Date: Aug 28, 2020
225 KernelVersion: 5.10.0
226 Contact: dmaengine@vger.kernel.org
227 Description: The max batch size for this wo
228 max batch size. Configurable p
229 It's not visible when the devi
230
231 What: /sys/bus/dsa/devices/wq<m>.<n>
232 Date: Nov 13, 2020
233 KernelVersion: 5.11.0
234 Contact: dmaengine@vger.kernel.org
235 Description: Indicate whether ATS disable i
236 0 indicates ATS is on, and 1 i
237
238 What: /sys/bus/dsa/devices/wq<m>.<n>
239 Date: Sept 14, 2022
240 KernelVersion: 6.4.0
241 Contact: dmaengine@vger.kernel.org
242 Description: Controls whether PRS disable i
243 0 indicates PRS is on, and 1 i
244 workqueue. This option overrid
245 if set. It's visible only on p
246 capability.
247
248 What: /sys/bus/dsa/devices/wq<m>.<n>
249 Date May 25, 2021
250 KernelVersion: 5.14.0
251 Contact: dmaengine@vger.kernel.org
252 Description: Show the current number of ent
253 Support bit WQ capabilities is
254
255 What: /sys/bus/dsa/devices/wq<m>.<n>
256 Date Oct 29, 2021
257 KernelVersion: 5.17.0
258 Contact: dmaengine@vger.kernel.org
259 Description: Indicate the number of retires
260 A max value to set attribute i
261
262 What: /sys/bus/dsa/devices/wq<m>.<n>
263 Date: Sept 14, 2022
264 KernelVersion: 6.0.0
265 Contact: dmaengine@vger.kernel.org
266 Description: Shows the operation capability
267 presented by %*pb printk() out
268 The attribute can be configure
269 order to configure the WQ to a
270 correlates to the operations a
271 on platforms that support the
272
273 What: /sys/bus/dsa/devices/wq<m>.<n>
274 Date: Sept 8, 2023
275 KernelVersion: 6.7.0
276 Contact: dmaengine@vger.kernel.org
277 Description: Name of driver to be bounded t
278
279 What: /sys/bus/dsa/devices/engine<m>
280 Date: Oct 25, 2019
281 KernelVersion: 5.6.0
282 Contact: dmaengine@vger.kernel.org
283 Description: The group that this engine bel
284
285 What: /sys/bus/dsa/devices/group<m>.
286 Date: Dec 10, 2021
287 KernelVersion: 5.17.0
288 Contact: dmaengine@vger.kernel.org
289 Description: Enable the use of global read
290 spec v1.2 9.2.18 GRPCFG Use Gl
291 It's not visible when the devi
292 allocation control.
293
294 What: /sys/bus/dsa/devices/group<m>.
295 Date: Dec 10, 2021
296 KernelVersion: 5.17.0
297 Contact: dmaengine@vger.kernel.org
298 Description: Indicates max number of read b
299 by all engines in the group. S
300 Buffers Allowed.
301 It's not visible when the devi
302 allocation control.
303
304 What: /sys/bus/dsa/devices/group<m>.
305 Date: Dec 10, 2021
306 KernelVersion: 5.17.0
307 Contact: dmaengine@vger.kernel.org
308 Description: Indicates the number of Read B
309 engines in the group. See DSA
310 Reserved.
311 It's not visible when the devi
312 allocation control.
313
314 What: /sys/bus/dsa/devices/group<m>.
315 Date: Sept 14, 2022
316 KernelVersion: 6.0.0
317 Contact: dmaengine@vger.kernel.org
318 Description: Allows control of the number o
319 concurrently processed by an e
320 of the Maximum Work Descriptor
321 the ENGCAP register. The accep
322 1 (1/2 of max value), 2 (1/4 o
323 the max value). It's visible o
324 the capability.
325
326 What: /sys/bus/dsa/devices/group<m>.
327 Date: Sept 14, 2022
328 KernelVersion: 6.0.0
329 Contact: dmaengine@vger.kernel.org
330 Description: Allows control of the number o
331 concurrently processed by an e
332 of the Maximum Batch Descripto
333 the ENGCAP register. The accep
334 1 (1/2 of max value), 2 (1/4 o
335 the max value). It's visible o
336 the capability.
337
338 What: /sys/bus/dsa/devices/wq<m>.<n>
339 Date: Sept 14, 2022
340 KernelVersion: 6.4.0
341 Contact: dmaengine@vger.kernel.org
342 Description: Show the number of Completion
343 has caused.
344
345 What: /sys/bus/dsa/devices/wq<m>.<n>
346 Date: Sept 14, 2022
347 KernelVersion: 6.4.0
348 Contact: dmaengine@vger.kernel.org
349 Description: Show the number of Completion
350 application has caused. The fa
351 driver cannot fault in the add
352 by a bad address programmed in
353 submitter is using bad CR addr
354
355 What: /sys/bus/dsa/devices/wq<m>.<n>
356 Date: Sept 14, 2022
357 KernelVersion: 6.4.0
358 Contact: dmaengine@vger.kernel.org
359 Description: Show the process id of the app
360 helpful information for a moni
361 application that opened the fi
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