tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
2
3Date: June 2018
4KernelVersion: 4.19
5Contact: Vadim Pasternak <vadimpmellanox.com>
6Description: This file shows ASIC health status. The possible values are:
7 0 - health failed, 2 - health OK, 3 - ASIC in booting state.
8
9 The files are read only.
10
11What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
12What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
13Date: June 2018
14KernelVersion: 4.19
15Contact: Vadim Pasternak <vadimpmellanox.com>
16Description: These files show with which CPLD versions have been burned
17 on carrier and switch boards.
18
19 The files are read only.
20
21What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
22
23Date: December 2018
24KernelVersion: 5.0
25Contact: Vadim Pasternak <vadimpmellanox.com>
26Description: This file shows the system fans direction:
27 forward direction - relevant bit is set 0;
28 reversed direction - relevant bit is set 1.
29
30 The files are read only.
31
32What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
33
34Date: November 2018
35KernelVersion: 5.0
36Contact: Vadim Pasternak <vadimpmellanox.com>
37Description: These files show with which CPLD versions have been burned
38 on LED board.
39
40 The files are read only.
41
42What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
43
44Date: November 2018
45KernelVersion: 5.0
46Contact: Vadim Pasternak <vadimpmellanox.com>
47Description: These files enable and disable the access to the JTAG domain.
48 By default access to the JTAG domain is disabled.
49
50 The file is read/write.
51
52What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
53Date: June 2018
54KernelVersion: 4.19
55Contact: Vadim Pasternak <vadimpmellanox.com>
56Description: This file allows iio devices selection.
57
58 Attribute select_iio can be written with 0 or with 1. It
59 selects which one of iio devices can be accessed.
60
61 The file is read/write.
62
63What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
64 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu2_on
65 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle
66 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
67Date: June 2018
68KernelVersion: 4.19
69Contact: Vadim Pasternak <vadimpmellanox.com>
70Description: These files allow asserting system power cycling, switching
71 power supply units on and off and system's main power domain
72 shutdown.
73 Expected behavior:
74 When pwr_cycle is written 1: auxiliary power domain will go
75 down and after short period (about 1 second) up.
76 When psu1_on or psu2_on is written 1, related unit will be
77 disconnected from the power source, when written 0 - connected.
78 If both are written 1 - power supplies main power domain will
79 go down.
80 When pwr_down is written 1, system's main power domain will go
81 down.
82
83 The files are write only.
84
85What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_aux_pwr_or_ref
86What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_asic_thermal
87What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_halt
88What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_wd
89What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_fw_reset
90What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_long_pb
91What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_main_pwr_fail
92What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_short_pb
93What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_reset
94Date: June 2018
95KernelVersion: 4.19
96Contact: Vadim Pasternak <vadimpmellanox.com>
97Description: These files show the system reset cause, as following: power
98 auxiliary outage or power refresh, ASIC thermal shutdown, halt,
99 hotswap, watchdog, firmware reset, long press power button,
100 short press power button, software reset. Value 1 in file means
101 this is reset cause, 0 - otherwise. Only one of the above
102 causes could be 1 at the same time, representing only last
103 reset cause.
104
105 The files are read only.
106
107What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_pwr_fail
108What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_comex
109What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
110What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
111
112Date: November 2018
113KernelVersion: 5.0
114Contact: Vadim Pasternak <vadimpmellanox.com>
115Description: These files show the system reset cause, as following: ComEx
116 power fail, reset from ComEx, system platform reset, reset
117 due to voltage monitor devices upgrade failure,
118 Value 1 in file means this is reset cause, 0 - otherwise.
119 Only one bit could be 1 at the same time, representing only
120 the last reset cause.
121
122 The files are read only.
123
124Date: June 2019
125KernelVersion: 5.3
126Contact: Vadim Pasternak <vadimpmellanox.com>
127Description: These files show the system reset cause, as following:
128 COMEX thermal shutdown; wathchdog power off or reset was derived
129 by one of the next components: COMEX, switch board or by Small Form
130 Factor mezzanine, reset requested from ASIC, reset cuased by BIOS
131 reload. Value 1 in file means this is reset cause, 0 - otherwise.
132 Only one of the above causes could be 1 at the same time, representing
133 only last reset cause.
134
135 The files are read only.
136
137What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
138What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
139What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
140What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
141What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
142What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd