1 What: /sys/bus/platform/devices/dfl-
2 Date: June 2018
3 KernelVersion: 4.19
4 Contact: Wu Hao <hao.wu@intel.com>
5 Description: Read-only. One DFL FPGA device
6 port/Accelerator Function Unit
7 number of ports on the FPGA de
8
9 What: /sys/bus/platform/devices/dfl-
10 Date: June 2018
11 KernelVersion: 4.19
12 Contact: Wu Hao <hao.wu@intel.com>
13 Description: Read-only. It returns Bitstrea
14 identifier number, which inclu
15 and other information of this
16
17 What: /sys/bus/platform/devices/dfl-
18 Date: June 2018
19 KernelVersion: 4.19
20 Contact: Wu Hao <hao.wu@intel.com>
21 Description: Read-only. It returns Bitstrea
22 data, which includes the synth
23 information of this static FPG
24
25 What: /sys/bus/platform/devices/dfl-
26 Date: August 2019
27 KernelVersion: 5.4
28 Contact: Wu Hao <hao.wu@intel.com>
29 Description: Read-only. It returns cache si
30
31 What: /sys/bus/platform/devices/dfl-
32 Date: August 2019
33 KernelVersion: 5.4
34 Contact: Wu Hao <hao.wu@intel.com>
35 Description: Read-only. It returns fabric v
36 Userspace applications need th
37 best data channels per differe
38
39 What: /sys/bus/platform/devices/dfl-
40 Date: August 2019
41 KernelVersion: 5.4
42 Contact: Wu Hao <hao.wu@intel.com>
43 Description: Read-only. It returns socket_i
44 this FPGA belongs to, only val
45 User only needs this informati
46 can't provide correct informat
47
48 What: /sys/bus/platform/devices/dfl-
49 Date: August 2019
50 KernelVersion: 5.4
51 Contact: Wu Hao <hao.wu@intel.com>
52 Description: Read-Write. Read this file for
53 Write this file to clear error
54 fails with -EINVAL if input pa
55 doesn't match.
56
57 What: /sys/bus/platform/devices/dfl-
58 Date: August 2019
59 KernelVersion: 5.4
60 Contact: Wu Hao <hao.wu@intel.com>
61 Description: Read-Write. Read this file for
62 Write this file to clear error
63 fails with -EINVAL if input pa
64 doesn't match.
65
66 What: /sys/bus/platform/devices/dfl-
67 Date: August 2019
68 KernelVersion: 5.4
69 Contact: Wu Hao <hao.wu@intel.com>
70 Description: Read-only. It returns non-fata
71
72 What: /sys/bus/platform/devices/dfl-
73 Date: August 2019
74 KernelVersion: 5.4
75 Contact: Wu Hao <hao.wu@intel.com>
76 Description: Read-only. It returns catastro
77
78 What: /sys/bus/platform/devices/dfl-
79 Date: August 2019
80 KernelVersion: 5.4
81 Contact: Wu Hao <hao.wu@intel.com>
82 Description: Read-Write. Read this file to
83 file to inject errors for test
84 -EINVAL if input parsing fails
85 supported.
86
87 What: /sys/bus/platform/devices/dfl-
88 Date: August 2019
89 KernelVersion: 5.4
90 Contact: Wu Hao <hao.wu@intel.com>
91 Description: Read-Write. Read this file to
92 Write this file to clear error
93 fails with -EINVAL if input pa
94 doesn't match.
95
96 What: /sys/bus/platform/devices/dfl-
97 Date: August 2019
98 KernelVersion: 5.4
99 Contact: Wu Hao <hao.wu@intel.com>
100 Description: Read-only. Read this file to g
101 hardware.
102
103 What: /sys/bus/platform/devices/dfl-
104 Date: August 2019
105 KernelVersion: 5.4
106 Contact: Wu Hao <hao.wu@intel.com>
107 Description: Read-only. Read this file to g
108 hardware.
109
110 What: /sys/bus/platform/devices/dfl-
111 Date: October 2019
112 KernelVersion: 5.5
113 Contact: Wu Hao <hao.wu@intel.com>
114 Description: Read-Only. Read this file to g
115 supports values:
116
117 ================= ===========
118 'dfl_fme_thermal' thermal hwm
119 'dfl_fme_power' power hwmon
120 ================= ===========
121
122 What: /sys/bus/platform/devices/dfl-
123 Date: October 2019
124 KernelVersion: 5.5
125 Contact: Wu Hao <hao.wu@intel.com>
126 Description: Read-Only. It returns FPGA dev
127 Celsius.
128
129 What: /sys/bus/platform/devices/dfl-
130 Date: October 2019
131 KernelVersion: 5.5
132 Contact: Wu Hao <hao.wu@intel.com>
133 Description: Read-Only. It returns hardware
134 millidegrees Celsius. If tempe
135 threshold, hardware starts 50%
136 'temp1_max_policy').
137
138 What: /sys/bus/platform/devices/dfl-
139 Date: October 2019
140 KernelVersion: 5.5
141 Contact: Wu Hao <hao.wu@intel.com>
142 Description: Read-Only. It returns hardware
143 millidegrees Celsius. If tempe
144 threshold, hardware starts 100
145
146 What: /sys/bus/platform/devices/dfl-
147 Date: October 2019
148 KernelVersion: 5.5
149 Contact: Wu Hao <hao.wu@intel.com>
150 Description: Read-Only. It returns hardware
151 millidegrees Celsius. If tempe
152 threshold, a fatal event will
153 controller (BMC) to shutdown F
154
155 What: /sys/bus/platform/devices/dfl-
156 Date: October 2019
157 KernelVersion: 5.5
158 Contact: Wu Hao <hao.wu@intel.com>
159 Description: Read-only. It returns 1 if tem
160 hardware threshold1 (see 'temp
161
162 What: /sys/bus/platform/devices/dfl-
163 Date: October 2019
164 KernelVersion: 5.5
165 Contact: Wu Hao <hao.wu@intel.com>
166 Description: Read-only. It returns 1 if tem
167 hardware threshold2 (see 'temp
168
169 What: /sys/bus/platform/devices/dfl-
170 Date: October 2019
171 KernelVersion: 5.5
172 Contact: Wu Hao <hao.wu@intel.com>
173 Description: Read-Only. Read this file to g
174 (see 'temp1_max'). It only sup
175
176 == ==========================
177 0 AP2 state (90% throttling)
178 1 AP1 state (50% throttling)
179 == ==========================
180
181 What: /sys/bus/platform/devices/dfl-
182 Date: October 2019
183 KernelVersion: 5.5
184 Contact: Wu Hao <hao.wu@intel.com>
185 Description: Read-Only. It returns current
186
187 What: /sys/bus/platform/devices/dfl-
188 Date: October 2019
189 KernelVersion: 5.5
190 Contact: Wu Hao <hao.wu@intel.com>
191 Description: Read-Write. Read this file to
192 threshold1 in uW. If power con
193 this threshold, hardware start
194 Write this file to set current
195 As hardware only accepts value
196 be round down per Watts (< 1 w
197 clamped within the range from
198 -EINVAL if input parsing fails
199
200 What: /sys/bus/platform/devices/dfl-
201 Date: October 2019
202 KernelVersion: 5.5
203 Contact: Wu Hao <hao.wu@intel.com>
204 Description: Read-Write. Read this file to
205 threshold2 in uW. If power con
206 this threshold, hardware start
207 Write this file to set current
208 As hardware only accepts value
209 be round down per Watts (< 1 w
210 clamped within the range from
211 -EINVAL if input parsing fails
212
213 What: /sys/bus/platform/devices/dfl-
214 Date: October 2019
215 KernelVersion: 5.5
216 Contact: Wu Hao <hao.wu@intel.com>
217 Description: Read-only. It returns 1 if pow
218 above hardware threshold1 (see
219
220 What: /sys/bus/platform/devices/dfl-
221 Date: October 2019
222 KernelVersion: 5.5
223 Contact: Wu Hao <hao.wu@intel.com>
224 Description: Read-only. It returns 1 if pow
225 above hardware threshold2 (see
226
227 What: /sys/bus/platform/devices/dfl-
228 Date: October 2019
229 KernelVersion: 5.5
230 Contact: Wu Hao <hao.wu@intel.com>
231 Description: Read-Only. It returns power li
232
233 What: /sys/bus/platform/devices/dfl-
234 Date: October 2019
235 KernelVersion: 5.5
236 Contact: Wu Hao <hao.wu@intel.com>
237 Description: Read-Only. It returns power li
238
239 What: /sys/bus/platform/devices/dfl-
240 Date: October 2019
241 KernelVersion: 5.5
242 Contact: Wu Hao <hao.wu@intel.com>
243 Description: Read-only. Read this file to g
244 Reporting (ltr) value. It retu
245 Function Units (AFUs) can tole
246 access or 0 if any AFU is late
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.