Documentation/ABI/stable/sysfs-driver-mlxreg-io

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