1 Please note that attributes that are shared be
2 the directory pointed to by the symlink device
3 For example, the real path of the attribute /s
4 /sys/class/cxl/afu0.0s/device/irqs_max, i.e. /
5
6
7 Slave contexts (eg. /sys/class/cxl/afu0.0s):
8
9 What: /sys/class/cxl/<afu>/afu_err_b
10 Date: September 2014
11 Contact: linuxppc-dev@lists.ozlabs.org
12 Description: read only
13 AFU Error Buffer contents. The
14 application specific and depen
15 Applications interacting with
16 to know about the current erro
17 action like logging the event
18
19
20 What: /sys/class/cxl/<afu>/irqs_max
21 Date: September 2014
22 Contact: linuxppc-dev@lists.ozlabs.org
23 Description: read/write
24 Decimal value of maximum numbe
25 requested by userspace. The d
26 that hardware can support (eg.
27 userspace applications to that
28 be >= irqs_min.
29 Users: https://github.com/ibm-capi/li
30
31 What: /sys/class/cxl/<afu>/irqs_min
32 Date: September 2014
33 Contact: linuxppc-dev@lists.ozlabs.org
34 Description: read only
35 Decimal value of the minimum n
36 userspace must request on a CX
37 omit the num_interrupts field
38 this minimum automatically.
39 Users: https://github.com/ibm-capi/li
40
41 What: /sys/class/cxl/<afu>/mmio_size
42 Date: September 2014
43 Contact: linuxppc-dev@lists.ozlabs.org
44 Description: read only
45 Decimal value of the size of t
46 by userspace.
47 Users: https://github.com/ibm-capi/li
48
49 What: /sys/class/cxl/<afu>/modes_sup
50 Date: September 2014
51 Contact: linuxppc-dev@lists.ozlabs.org
52 Description: read only
53 List of the modes this AFU sup
54 Valid entries are: "dedicated_
55 Users: https://github.com/ibm-capi/li
56
57 What: /sys/class/cxl/<afu>/mode
58 Date: September 2014
59 Contact: linuxppc-dev@lists.ozlabs.org
60 Description: read/write
61 The current mode the AFU is us
62 given in modes_supported. Writ
63 provided that no user contexts
64 Users: https://github.com/ibm-capi/li
65
66
67 What: /sys/class/cxl/<afu>/prefault_
68 Date: September 2014
69 Contact: linuxppc-dev@lists.ozlabs.org
70 Description: read/write
71 Set the mode for prefaulting i
72 when performing the START_WORK
73 running under hashed page tabl
74 Possible values:
75
76 ======================= =====
77 none No pr
78 work_element_descriptor Treat
79 descr
80 prefa
81 all all s
82 START
83 ======================= =====
84
85 Users: https://github.com/ibm-capi/li
86
87 What: /sys/class/cxl/<afu>/reset
88 Date: September 2014
89 Contact: linuxppc-dev@lists.ozlabs.org
90 Description: write only
91 Writing 1 here will reset the
92 contexts active on the AFU.
93 Users: https://github.com/ibm-capi/li
94
95 What: /sys/class/cxl/<afu>/api_versi
96 Date: September 2014
97 Contact: linuxppc-dev@lists.ozlabs.org
98 Description: read only
99 Decimal value of the current v
100 Users: https://github.com/ibm-capi/li
101
102 What: /sys/class/cxl/<afu>/api_versi
103 Date: September 2014
104 Contact: linuxppc-dev@lists.ozlabs.org
105 Description: read only
106 Decimal value of the lowest ve
107 this kernel supports.
108 Users: https://github.com/ibm-capi/li
109
110
111 AFU configuration records (eg. /sys/class/cxl/
112
113 An AFU may optionally export one or more PCIe
114 as AFU configuration records, which will show
115
116 What: /sys/class/cxl/<afu>/cr<config
117 Date: February 2015
118 Contact: linuxppc-dev@lists.ozlabs.org
119 Description: read only
120 Hexadecimal value of the vendo
121 configuration record.
122 Users: https://github.com/ibm-capi/li
123
124 What: /sys/class/cxl/<afu>/cr<config
125 Date: February 2015
126 Contact: linuxppc-dev@lists.ozlabs.org
127 Description: read only
128 Hexadecimal value of the devic
129 configuration record.
130 Users: https://github.com/ibm-capi/li
131
132 What: /sys/class/cxl/<afu>/cr<config
133 Date: February 2015
134 Contact: linuxppc-dev@lists.ozlabs.org
135 Description: read only
136 Hexadecimal value of the class
137 configuration record.
138 Users: https://github.com/ibm-capi/li
139
140 What: /sys/class/cxl/<afu>/cr<config
141 Date: February 2015
142 Contact: linuxppc-dev@lists.ozlabs.org
143 Description: read only
144 This binary file provides raw
145 record. The format is expected
146 or extended configuration spac
147 specification.
148 Users: https://github.com/ibm-capi/li
149
150
151
152 Master contexts (eg. /sys/class/cxl/afu0.0m)
153
154 What: /sys/class/cxl/<afu>m/mmio_siz
155 Date: September 2014
156 Contact: linuxppc-dev@lists.ozlabs.org
157 Description: read only
158 Decimal value of the size of t
159 by userspace. This includes al
160 Users: https://github.com/ibm-capi/li
161
162 What: /sys/class/cxl/<afu>m/pp_mmio_
163 Date: September 2014
164 Contact: linuxppc-dev@lists.ozlabs.org
165 Description: read only
166 Decimal value of the Per Proce
167 Users: https://github.com/ibm-capi/li
168
169 What: /sys/class/cxl/<afu>m/pp_mmio_
170 Date: September 2014
171 Contact: linuxppc-dev@lists.ozlabs.org
172 Description: read only
173 (not in a guest)
174 Decimal value of the Per Proce
175 Users: https://github.com/ibm-capi/li
176
177
178 Card info (eg. /sys/class/cxl/card0)
179
180 What: /sys/class/cxl/<card>/caia_ver
181 Date: September 2014
182 Contact: linuxppc-dev@lists.ozlabs.org
183 Description: read only
184 Identifies the CAIA Version th
185 Users: https://github.com/ibm-capi/li
186
187 What: /sys/class/cxl/<card>/psl_revi
188 Date: September 2014
189 Contact: linuxppc-dev@lists.ozlabs.org
190 Description: read only
191 Identifies the revision level
192 Users: https://github.com/ibm-capi/li
193
194 What: /sys/class/cxl/<card>/base_ima
195 Date: September 2014
196 Contact: linuxppc-dev@lists.ozlabs.org
197 Description: read only
198 (not in a guest)
199 Identifies the revision level
200 that support loadable PSLs. Fo
201 the image contained in the on-
202 during the initial program loa
203 Users: https://github.com/ibm-capi/li
204
205 What: /sys/class/cxl/<card>/image_lo
206 Date: September 2014
207 Contact: linuxppc-dev@lists.ozlabs.org
208 Description: read only
209 (not in a guest)
210 Will return "user" or "factory
211 onto the card.
212 Users: https://github.com/ibm-capi/li
213
214 What: /sys/class/cxl/<card>/load_ima
215 Date: December 2014
216 Contact: linuxppc-dev@lists.ozlabs.org
217 Description: read/write
218 (not in a guest)
219 Valid entries are "none", "use
220 "none" means PERST will not ca
221 card. A power cycle is requir
222 "none" could be useful for deb
223 are preserved.
224
225 "user" and "factory" means PER
226 user or factory image to be lo
227 Default is to reload on PERST
228 loaded.
229 Users: https://github.com/ibm-capi/li
230
231 What: /sys/class/cxl/<card>/reset
232 Date: October 2014
233 Contact: linuxppc-dev@lists.ozlabs.org
234 Description: write only
235 Writing 1 will issue a PERST t
236 contexts active on any one of
237 the card to reload the FPGA de
238 Writing -1 will do a force PER
239 contexts on the card AFUs.
240 Users: https://github.com/ibm-capi/li
241
242 What: /sys/class/cxl/<card>/perst_re
243 Date: July 2015
244 Contact: linuxppc-dev@lists.ozlabs.org
245 Description: read/write
246 (not in a guest)
247 Trust that when an image is re
248 have changed.
249
250 == ==========================
251 0 don't trust, the image may
252 1 trust that the image will
253 == ==========================
254 Users: https://github.com/ibm-capi/li
255
256 What: /sys/class/cxl/<card>/psl_time
257 Date: March 2016
258 Contact: linuxppc-dev@lists.ozlabs.org
259 Description: read only
260 Returns 1 if the psl timebase
261 with the core timebase registe
262 Users: https://github.com/ibm-capi/li
263
264 What: /sys/class/cxl/<card>/tunneled
265 Date: May 2018
266 Contact: linuxppc-dev@lists.ozlabs.org
267 Description: read only
268 Returns 1 if tunneled operatio
269 0 otherwise.
270 Users: https://github.com/ibm-capi/li
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