1 What: /sys/devices/platform/mlxplat/
2 Date: June 2018
3 KernelVersion: 4.19
4 Contact: Vadim Pasternak <vadimp@nvidia.
5 Description: This file shows ASIC health st
6 0 - health failed, 2 - health
7
8 The files are read only.
9
10 What: /sys/devices/platform/mlxplat/
11 What: /sys/devices/platform/mlxplat/
12 Date: June 2018
13 KernelVersion: 4.19
14 Contact: Vadim Pasternak <vadimp@nvidia.
15 Description: These files show with which CP
16 on carrier and switch boards.
17
18 The files are read only.
19
20 What: /sys/devices/platform/mlxplat/
21 Date: December 2018
22 KernelVersion: 5.0
23 Contact: Vadim Pasternak <vadimp@nvidia.
24 Description: This file shows the system fan
25 forward direction - relevant b
26 reversed direction - relevant
27
28 The files are read only.
29
30 What: /sys/devices/platform/mlxplat/
31 Date: November 2018
32 KernelVersion: 5.0
33 Contact: Vadim Pasternak <vadimp@nvidia.
34 Description: These files show with which CP
35 on LED or Gearbox board.
36
37 The files are read only.
38
39 What: /sys/devices/platform/mlxplat/
40 Date: November 2018
41 KernelVersion: 5.0
42 Contact: Vadim Pasternak <vadimp@nvidia.
43 Description: These files enable and disable
44 By default access to the JTAG
45
46 The file is read/write.
47
48 What: /sys/devices/platform/mlxplat/
49 Date: June 2018
50 KernelVersion: 4.19
51 Contact: Vadim Pasternak <vadimp@nvidia.
52 Description: This file allows iio devices s
53
54 Attribute select_iio can be wr
55 selects which one of iio devic
56
57 The file is read/write.
58
59 What: /sys/devices/platform/mlxplat/
60 /sys/devices/platform/mlxplat/
61 /sys/devices/platform/mlxplat/
62 /sys/devices/platform/mlxplat/
63 Date: June 2018
64 KernelVersion: 4.19
65 Contact: Vadim Pasternak <vadimp@nvidia.
66 Description: These files allow asserting sy
67 power supply units on and off
68 shutdown.
69 Expected behavior:
70 When pwr_cycle is written 1: a
71 down and after short period (a
72 When psu1_on or psu2_on is wr
73 disconnected from the power so
74 If both are written 1 - power
75 go down.
76 When pwr_down is written 1, sy
77 down.
78
79 The files are write only.
80
81 What: /sys/devices/platform/mlxplat/
82 What: /sys/devices/platform/mlxplat/
83 What: /sys/devices/platform/mlxplat/
84 What: /sys/devices/platform/mlxplat/
85 What: /sys/devices/platform/mlxplat/
86 What: /sys/devices/platform/mlxplat/
87 What: /sys/devices/platform/mlxplat/
88 What: /sys/devices/platform/mlxplat/
89 What: /sys/devices/platform/mlxplat/
90 Date: June 2018
91 KernelVersion: 4.19
92 Contact: Vadim Pasternak <vadimp@nvidia.
93 Description: These files show the system re
94 auxiliary outage or power refr
95 hotswap, watchdog, firmware re
96 short press power button, soft
97 this is reset cause, 0 - other
98 causes could be 1 at the same
99 reset cause.
100
101 The files are read only.
102
103 What: /sys/devices/platform/mlxplat/
104 What: /sys/devices/platform/mlxplat/
105 What: /sys/devices/platform/mlxplat/
106 What: /sys/devices/platform/mlxplat/
107 Date: November 2018
108 KernelVersion: 5.0
109 Contact: Vadim Pasternak <vadimp@nvidia.
110 Description: These files show the system re
111 power fail, reset from ComEx,
112 due to voltage monitor devices
113 Value 1 in file means this is
114 Only one bit could be 1 at the
115 the last reset cause.
116
117 The files are read only.
118
119 What: /sys/devices/platform/mlxplat/
120 Date: November 2018
121 KernelVersion: 5.0
122 Contact: Vadim Pasternak <vadimp@nvidia.
123 Description: These files show with which CP
124 on LED board.
125
126 The files are read only.
127
128 What: /sys/devices/platform/mlxplat/
129 What: /sys/devices/platform/mlxplat/
130 What: /sys/devices/platform/mlxplat/
131 What: /sys/devices/platform/mlxplat/
132 What: /sys/devices/platform/mlxplat/
133 What: /sys/devices/platform/mlxplat/
134 Date: June 2019
135 KernelVersion: 5.3
136 Contact: Vadim Pasternak <vadimp@nvidia.
137 Description: These files show the system re
138 COMEX thermal shutdown; wathch
139 by one of the next components:
140 Factor mezzanine, reset reques
141 reload. Value 1 in file means
142 Only one of the above causes c
143 only last reset cause.
144
145 The files are read only.
146
147 What: /sys/devices/platform/mlxplat/
148 What: /sys/devices/platform/mlxplat/
149 Date: January 2020
150 KernelVersion: 5.6
151 Contact: Vadim Pasternak <vadimp@nvidia.
152 Description: These files show system static
153 like system's static I2C topol
154 devices within the system and
155
156 The files are read only.
157
158 What: /sys/devices/platform/mlxplat/
159 What: /sys/devices/platform/mlxplat/
160 What: /sys/devices/platform/mlxplat/
161 What: /sys/devices/platform/mlxplat/
162 Date: January 2020
163 KernelVersion: 5.6
164 Contact: Vadim Pasternak <vadimp@nvidia.
165 Description: These files show the system re
166 due to AC power failure, reset
167 assertion reset signal through
168 asserted by SOC through ACPI r
169 software by assertion power of
170
171 The files are read only.
172
173 What: /sys/devices/platform/mlxplat/
174 Date: January 2020
175 KernelVersion: 5.6
176 Contact: Vadim Pasternak <vadimp@nvidia.
177 Description: This file allows to retain ASI
178 reset, when attribute is set 1
179
180 The file is read/write.
181
182 What: /sys/devices/platform/mlxplat/
183 Date: January 2020
184 KernelVersion: 5.6
185 Contact: Vadim Pasternak <vadimp@nvidia.
186 Description: This file allows to overwrite
187 protection when attribute is s
188
189 The file is read/write.
190
191 What: /sys/devices/platform/mlxplat/
192 Date: January 2020
193 KernelVersion: 5.6
194 Contact: Vadim Pasternak <vadimp@nvidia.
195 Description: This file exposes the configur
196 voltage regulator devices. The
197 0 - OK; 1 - CRC failure; 2 = I
198
199 The file is read only.
200
201 What: /sys/devices/platform/mlxplat/
202 Date: January 2020
203 KernelVersion: 5.6
204 Contact: Vadim Pasternak <vadimp@nvidia.
205 Description: This file exposes the firmware
206 regulator devices.
207
208 The file is read only.
209
210 What: /sys/devices/platform/mlxplat/
211 What: /sys/devices/platform/mlxplat/
212 What: /sys/devices/platform/mlxplat/
213 What: /sys/devices/platform/mlxplat/
214 What: /sys/devices/platform/mlxplat/
215 What: /sys/devices/platform/mlxplat/
216 What: /sys/devices/platform/mlxplat/
217 What: /sys/devices/platform/mlxplat/
218 Date: July 2020
219 KernelVersion: 5.9
220 Contact: Vadim Pasternak <vadimp@nvidia.
221 Description: These files show with which CP
222 versions have been burned CPLD
223 system.
224
225 The files are read only.
226
227 What: /sys/devices/platform/mlxplat/
228 What: /sys/devices/platform/mlxplat/
229 What: /sys/devices/platform/mlxplat/
230 Date: October 2021
231 KernelVersion: 5.16
232 Contact: Vadim Pasternak <vadimp@nvidia.
233 Description: The files represent BIOS statu
234
235 bios_active_image: location of
236 0: Top, 1: Bottom.
237 The reported value should corr
238 in case of BIOS safe mode is 0
239 top-swap feature of DualBios o
240
241 bios_auth_fail: BIOS upgrade i
242 image is not signed correctly.
243
244 bios_upgrade_fail: BIOS upgrad
245 reason not because authenticat
246 physical SPI flash problem.
247
248 The files are read only.
249
250 What: /sys/devices/platform/mlxplat/
251 What: /sys/devices/platform/mlxplat/
252 What: /sys/devices/platform/mlxplat/
253 What: /sys/devices/platform/mlxplat/
254 What: /sys/devices/platform/mlxplat/
255 What: /sys/devices/platform/mlxplat/
256 What: /sys/devices/platform/mlxplat/
257 What: /sys/devices/platform/mlxplat/
258 Date: October 2021
259 KernelVersion: 5.16
260 Contact: Vadim Pasternak <vadimp@nvidia.
261 Description: These files allow line cards e
262 Expected behavior:
263 When lc{n}_enable is written
264 from the reset state, when 0 -
265
266 The files are read/write.
267
268 What: /sys/devices/platform/mlxplat/
269 What: /sys/devices/platform/mlxplat/
270 What: /sys/devices/platform/mlxplat/
271 What: /sys/devices/platform/mlxplat/
272 What: /sys/devices/platform/mlxplat/
273 What: /sys/devices/platform/mlxplat/
274 What: /sys/devices/platform/mlxplat/
275 What: /sys/devices/platform/mlxplat/
276 Date: October 2021
277 KernelVersion: 5.16
278 Contact: Vadim Pasternak <vadimp@nvidia.
279 Description: These files switching line car
280 Expected behavior:
281 When lc{n}_pwr is written 1,
282 on, when written 0 - powered o
283
284 The files are read/write.
285
286 What: /sys/devices/platform/mlxplat/
287 What: /sys/devices/platform/mlxplat/
288 What: /sys/devices/platform/mlxplat/
289 What: /sys/devices/platform/mlxplat/
290 What: /sys/devices/platform/mlxplat/
291 What: /sys/devices/platform/mlxplat/
292 What: /sys/devices/platform/mlxplat/
293 What: /sys/devices/platform/mlxplat/
294 Date: October 2021
295 KernelVersion: 5.16
296 Contact: Vadim Pasternak <vadimp@nvidia.
297 Description: These files clear line card re
298 sets it due to some abnormal A
299 Expected behavior:
300 When lc{n}_rst_mask is written
301 is cleared, when written 0 - n
302
303 The files are write only.
304
305 What: /sys/devices/platform/mlxplat/
306 Date: October 2021
307 KernelVersion: 5.16
308 Contact: Vadim Pasternak <vadimp@nvidia.
309 Description: This file, when written 1, ind
310 that OS is taking control over
311
312 The file is read/write.
313
314 What: /sys/devices/platform/mlxplat/
315 Date: October 2021
316 KernelVersion: 5.16
317 Contact: Vadim Pasternak <vadimp@nvidia.
318 Description: This file assigns power manage
319 When power management control
320 will automatically power off o
321 powered line cards in case sys
322 insufficient. It could be in c
323 power good state.
324 When pm_mgmt_en is written 1,
325 software is enabled, 0 - power
326 Note that for any setting of p
327 not allow to power on any new
328 budget is insufficient.
329 Same in case software will try
330 at once - hardware will power
331 enough power budget.
332 Default is 0.
333
334 The file is read/write.
335
336 What: /sys/devices/platform/mlxplat/
337 What: /sys/devices/platform/mlxplat/
338 Date: October 2021
339 KernelVersion: 5.16
340 Contact: Vadim Pasternak <vadimp@nvidia.
341 Description: These files switching power su
342 Expected behavior:
343 When psu3_on or psu4_on is wr
344 disconnected from the power so
345
346 The files are write only.
347
348 What: /sys/devices/platform/mlxplat/
349 Date: October 2021
350 KernelVersion: 5.16
351 Contact: Vadim Pasternak <vadimp@nvidia.
352 Description: This file allows to unlock ASI
353 When system thermal shutdown i
354 getting locked and after syste
355 Software can decide to unlock
356 1 and then perform system powe
357 attribute to 1 (power cycle of
358 Before setting shutdown_unlock
359 validate that system reboot ca
360 reset_thermal_spc_or_pciesw.
361 In case shutdown_unlock is not
362 ASIC from locking - is full sy
363 external power distribution un
364 Default is 1.
365
366 The file is read/write.
367
368 What: /sys/devices/platform/mlxplat/
369 What: /sys/devices/platform/mlxplat/
370 What: /sys/devices/platform/mlxplat/
371 Date: October 2021
372 KernelVersion: 5.16
373 Contact: Vadim Pasternak <vadimp@nvidia.
374 Description: These files show with which CP
375 and part number has been burne
376
377 The files are read only.
378
379 What: /sys/devices/platform/mlxplat/
380 What: /sys/devices/platform/mlxplat/
381 What: /sys/devices/platform/mlxplat/
382 Date: October 2021
383 KernelVersion: 5.16
384 Contact: Vadim Pasternak <vadimp@nvidia.
385 Description: These files show with which FP
386 and part number has been burne
387
388 The files are read only.
389
390 What: /sys/devices/platform/mlxplat/
391 Date: October 2021
392 KernelVersion: 5.16
393 Contact: Vadim Pasternak <vadimp@nvidia.
394 Description: This file allow to overwrite l
395 protection mode. When attribut
396 disabled, when 0 - enabled.
397 Default is 0.
398 If the system is in locked-dow
399 be allowed.
400 The purpose if this file is to
401 during production flow.
402
403 The file is read/write.
404
405 What: /sys/devices/platform/mlxplat/
406 What: /sys/devices/platform/mlxplat/
407 What: /sys/devices/platform/mlxplat/
408 What: /sys/devices/platform/mlxplat/
409 What: /sys/devices/platform/mlxplat/
410 What: /sys/devices/platform/mlxplat/
411 Date: October 2021
412 KernelVersion: 5.16
413 Contact: Vadim Pasternak <vadimp@nvidia.
414 Description: These files show the line rese
415 auxiliary outage or power refr
416 failed, line card reset failed
417 Value 1 in file means this is
418 the above causes could be 1 at
419 reset cause.
420
421 The files are read only.
422
423 What: /sys/devices/platform/mlxplat/
424 What: /sys/devices/platform/mlxplat/
425 Date: October 2021
426 KernelVersion: 5.16
427 Contact: Vadim Pasternak <vadimp@nvidia.
428 Description: These files allow CPLD and FPG
429 is enabled, 0 - otherwise.
430 If the system is in locked-dow
431 not be allowed.
432 The purpose of these files to
433 upgrade through the JTAG daisy
434
435 The files are read/write.
436
437 What: /sys/devices/platform/mlxplat/
438 What: /sys/devices/platform/mlxplat/
439 Date: October 2021
440 KernelVersion: 5.16
441 Contact: Vadim Pasternak <vadimp@nvidia.
442 Description: These files allow to power on/
443 The attributes are set 1 for p
444
445 The files are read/write.
446
447 What: /sys/devices/platform/mlxplat/
448 What: /sys/devices/platform/mlxplat/
449 Date: October 2021
450 KernelVersion: 5.16
451 Contact: Vadim Pasternak <vadimp@nvidia.
452 Description: These files allow gearboxes an
453 The attributes are set 1 to en
454 If the system is in locked-dow
455 not be allowed.
456 The purpose of these files to
457 burning during production flow
458
459 The file is read/write.
460
461 What: /sys/devices/platform/mlxplat/
462 What: /sys/devices/platform/mlxplat/
463 Date: October 2021
464 KernelVersion: 5.16
465 Contact: Vadim Pasternak <vadimp@nvidia.
466 Description: These files provide the maximu
467 feeding and line card configur
468
469 The files are read only.
470
471 What: /sys/devices/platform/mlxplat/
472 Date: May 2022
473 KernelVersion: 5.19
474 Contact: Vadim Pasternak <vadimp@nvidia.
475 Description: This file allows to reset PHY
476 due to some abnormal PHY behav
477 Expected behavior:
478 When phy_reset is written 1, a
479 from the reset state, when 0 -
480
481 The files are read/write.
482
483 What: /sys/devices/platform/mlxplat/
484 Date: May 2022
485 KernelVersion: 5.19
486 Contact: Vadim Pasternak <vadimp@nvidia.
487 Description: This file allows to reset ASIC
488 due to some abnormal ASIC beha
489 Expected behavior:
490 When mac_reset is written 1, t
491 from the reset state, when 0 -
492
493 The files are read/write.
494
495 What: /sys/devices/platform/mlxplat/
496 Date: May 2022
497 KernelVersion: 5.19
498 Contact: Vadim Pasternak <vadimp@nvidia.
499 Description: This file shows QSFP ports pow
500 when one of any QSFP ports is
501 there are no any QSFP ports ar
502 The possible values are:
503 0 - Power good, 1 - Not power
504
505 The files are read only.
506
507 What: /sys/devices/platform/mlxplat/
508 Date: July 2022
509 KernelVersion: 5.20
510 Contact: Vadim Pasternak <vadimp@nvidia.
511 Description: This file shows 2-nd ASIC heal
512 0 - health failed, 2 - health
513
514 The file is read only.
515
516 What: /sys/devices/platform/mlxplat/
517 What: /sys/devices/platform/mlxplat/
518 Date: July 2022
519 KernelVersion: 5.20
520 Contact: Vadim Pasternak <vadimp@nvidia.
521 Description: These files allow to each of A
522
523 The files are write only.
524
525 What: /sys/devices/platform/mlxplat/
526 Date: July 2022
527 KernelVersion: 5.20
528 Contact: Vadim Pasternak <vadimp@nvidia.
529 Description: This file is used to indicate
530 host CPU is ready for sending
531 For indication the file should
532
533 The file is write only.
534
535 What: /sys/devices/platform/mlxplat/
536 Date: January 2020
537 KernelVersion: 5.6
538 Contact: Vadim Pasternak <vadimp@nvidia.
539 Description: The file indicates COME module
540 The value is pushed by hardwar
541 The purpose is to expose some
542
543 The file is read only.
544
545 What: /sys/devices/platform/mlxplat/
546 Date: February 2023
547 KernelVersion: 6.3
548 Contact: Vadim Pasternak <vadimp@nvidia.
549 Description: This file shows the system res
550 devices failure.
551 Value 1 in file means this is
552
553 The file is read only.
554
555 What: /sys/devices/platform/mlxplat/
556 What: /sys/devices/platform/mlxplat/
557 Date: February 2023
558 KernelVersion: 6.3
559 Contact: Vadim Pasternak <vadimp@nvidia.
560 Description: These files aim to monitor the
561 processor's RESET output to th
562 By reading this file, could be
563 revoked AP Firmware, at which
564 valid firmware is loaded. This
565 unauthorized firmware. In the
566 after the EROT validates the i
567 as quickly as possible so that
568 communicate to each ASIC.
569
570 The files are read only.
571
572 What: /sys/devices/platform/mlxplat/
573 What: /sys/devices/platform/mlxplat/
574 What: /sys/devices/platform/mlxplat/
575 What: /sys/devices/platform/mlxplat/
576 Date: February 2023
577 KernelVersion: 6.3
578 Contact: Vadim Pasternak <vadimp@nvidia.
579 Description: These files aim to perform Ext
580 sequence after EROT device fai
581 These EROT devices protect ASI
582 flow their reset should be rel
583 up stage, so that EROTs can be
584 CPU starts to communicate to A
585 Issuing a reset to the EROT wh
586 the EROT Application Processor
587 can be updated/recovered.
588 For reset/recovery the related
589
590 The files are read/write.
591
592 What: /sys/devices/platform/mlxplat/
593 What: /sys/devices/platform/mlxplat/
594 Date: February 2023
595 KernelVersion: 6.3
596 Contact: Vadim Pasternak <vadimp@nvidia.
597 Description: These files allow access to Ex
598 and recovery sequence after ER
599 Default is 0 (programming disa
600 If the system is in locked-dow
601
602 The files are read/write.
603
604 What: /sys/devices/platform/mlxplat/
605 Date: February 2023
606 KernelVersion: 6.3
607 Contact: Vadim Pasternak <vadimp@nvidia.
608 Description: This file allows SPI chip sele
609 device Out-of-Band recovery.
610 File can be written with 0 or
611 through SPI device.
612
613 The file is read/write.
614
615 What: /sys/devices/platform/mlxplat/
616 Date: February 2023
617 KernelVersion: 6.3
618 Contact: Vadim Pasternak vadimp@nvidia.
619 Description: This file shows ASIC Power Goo
620 Value 1 in file means ASIC Pow
621
622 The file is read only.
623
624 What: /sys/devices/platform/mlxplat/
625 What: /sys/devices/platform/mlxplat/
626 What: /sys/devices/platform/mlxplat/
627 Date: February 2023
628 KernelVersion: 6.3
629 Contact: Vadim Pasternak vadimp@nvidia.
630 Description: These files are related to clo
631 - clk_brd1_boot_fail: warning
632 - clk_brd2_boot_fail: warning
633 - clk_brd_fail: error about co
634
635 The files are read only.
636
637 What: /sys/devices/platform/mlxplat/
638 Date: February 2023
639 KernelVersion: 6.3
640 Contact: Vadim Pasternak <vadimp@nvidia.
641 Description: This file enables programming
642 Default is 0 (programming disa
643 If the system is in locked-dow
644
645 The file is read/write.
646
647 What: /sys/devices/platform/mlxplat/
648 Date: February 2023
649 KernelVersion: 6.3
650 Contact: Vadim Pasternak <vadimp@nvidia.
651 Description: This file enables programming
652 Default is 0 (programming disa
653 If the system is in locked-dow
654
655 The file is read/write.
656
657 What: /sys/devices/platform/mlxplat/
658 Date: February 2023
659 KernelVersion: 6.3
660 Contact: Vadim Pasternak <vadimp@nvidia.
661 Description: This file shows the system res
662 Value 1 in file means this is
663
664 The file is read only.
665
666 What: /sys/devices/platform/mlxplat/
667 What: /sys/devices/platform/mlxplat/
668 What: /sys/devices/platform/mlxplat/
669 Date: August 2023
670 KernelVersion: 6.6
671 Contact: Vadim Pasternak <vadimp@nvidia.
672 Description: These files show with which CP
673 versions have been burned the
674 system.
675
676 The files are read only.
677
678 What: /sys/devices/platform/mlxplat/
679 Date: August 2023
680 KernelVersion: 6.6
681 Contact: Vadim Pasternak <vadimp@nvidia.
682 Description: This file indicates the availa
683 field update through the JTAG
684
685 b00 - field update through LPC
686 b01 - Reserved.
687 b10 - Reserved.
688 b11 - field update through CPU
689
690 The file is read only.
691
692 What: /sys/devices/platform/mlxplat/
693 Date: August 2023
694 KernelVersion: 6.6
695 Contact: Vadim Pasternak <vadimp@nvidia.
696 Description: 1 - indicates that system lid
697
698 The file is read only.
699
700 What: /sys/devices/platform/mlxplat/
701 Date: August 2023
702 KernelVersion: 6.6
703 Contact: Vadim Pasternak <vadimp@nvidia.
704 Description: This file if set 1 indicates t
705 long press of power button.
706
707 The file is read only.
708
709 What: /sys/devices/platform/mlxplat/
710 Date: August 2023
711 KernelVersion: 6.6
712 Contact: Vadim Pasternak <vadimp@nvidia.
713 Description: This file shows 1 in case the
714 failure of any DC-DC power con
715 switch board.
716
717 The file is read only.
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