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

   1 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
   2
   3 Date:           June 2018
   4 KernelVersion:  4.19
   5 Contact:        Vadim Pasternak <vadimpmellanox.com>
   6 Description:    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
  11 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
  12 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
  13 Date:           June 2018
  14 KernelVersion:  4.19
  15 Contact:        Vadim Pasternak <vadimpmellanox.com>
  16 Description:    These files show with which CPLD versions have been burned
  17                 on carrier and switch boards.
  18
  19                 The files are read only.
  20
  21 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
  22
  23 Date:           December 2018
  24 KernelVersion:  5.0
  25 Contact:        Vadim Pasternak <vadimpmellanox.com>
  26 Description:    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
  32 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
  33
  34 Date:           November 2018
  35 KernelVersion:  5.0
  36 Contact:        Vadim Pasternak <vadimpmellanox.com>
  37 Description:    These files show with which CPLD versions have been burned
  38                 on LED board.
  39
  40                 The files are read only.
  41
  42 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
  43
  44 Date:           November 2018
  45 KernelVersion:  5.0
  46 Contact:        Vadim Pasternak <vadimpmellanox.com>
  47 Description:    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
  52 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
  53 Date:           June 2018
  54 KernelVersion:  4.19
  55 Contact:        Vadim Pasternak <vadimpmellanox.com>
  56 Description:    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
  63 What:           /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
  67 Date:           June 2018
  68 KernelVersion:  4.19
  69 Contact:        Vadim Pasternak <vadimpmellanox.com>
  70 Description:    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
  85 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_aux_pwr_or_ref
  86 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_asic_thermal
  87 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_halt
  88 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_wd
  89 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_fw_reset
  90 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_long_pb
  91 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_main_pwr_fail
  92 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_short_pb
  93 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_reset
  94 Date:           June 2018
  95 KernelVersion:  4.19
  96 Contact:        Vadim Pasternak <vadimpmellanox.com>
  97 Description:    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
 107 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_pwr_fail
 108 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_comex
 109 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
 110 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
 111
 112 Date:           November 2018
 113 KernelVersion:  5.0
 114 Contact:        Vadim Pasternak <vadimpmellanox.com>
 115 Description:    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
 124 Date:           June 2019
 125 KernelVersion:  5.3
 126 Contact:        Vadim Pasternak <vadimpmellanox.com>
 127 Description:    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
 137 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
 138 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
 139 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
 140 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
 141 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
 142 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd