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                                                         cpld3_version
  25
  26 Date:           November 2018
  27 KernelVersion:  4.21
  28 Contact:        Vadim Pasternak <vadimpmellanox.com>
  29 Description:    These files show with which CPLD versions have been burned
  30                 on LED board.
  31
  32                 The files are read only.
  33
  34 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
  35                                                         jtag_enable
  36
  37 Date:           November 2018
  38 KernelVersion:  4.21
  39 Contact:        Vadim Pasternak <vadimpmellanox.com>
  40 Description:    These files enable and disable the access to the JTAG domain.
  41                 By default access to the JTAG domain is disabled.
  42
  43                 The file is read/write.
  44
  45 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
  46 Date:           June 2018
  47 KernelVersion:  4.19
  48 Contact:        Vadim Pasternak <vadimpmellanox.com>
  49 Description:    This file allows iio devices selection.
  50
  51                 Attribute select_iio can be written with 0 or with 1. It
  52                 selects which one of iio devices can be accessed.
  53
  54                 The file is read/write.
  55
  56 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
  57                 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu2_on
  58                 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle
  59                 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
  60 Date:           June 2018
  61 KernelVersion:  4.19
  62 Contact:        Vadim Pasternak <vadimpmellanox.com>
  63 Description:    These files allow asserting system power cycling, switching
  64                 power supply units on and off and system's main power domain
  65                 shutdown.
  66                 Expected behavior:
  67                 When pwr_cycle is written 1: auxiliary power domain will go
  68                 down and after short period (about 1 second) up.
  69                 When  psu1_on or psu2_on is written 1, related unit will be
  70                 disconnected from the power source, when written 0 - connected.
  71                 If both are written 1 - power supplies main power domain will
  72                 go down.
  73                 When pwr_down is written 1, system's main power domain will go
  74                 down.
  75
  76                 The files are write only.
  77
  78 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
  79                                                         reset_aux_pwr_or_ref
  80                                                         reset_asic_thermal
  81                                                         reset_hotswap_or_halt
  82                                                         reset_hotswap_or_wd
  83                                                         reset_fw_reset
  84                                                         reset_long_pb
  85                                                         reset_main_pwr_fail
  86                                                         reset_short_pb
  87                                                         reset_sw_reset
  88 Date:           June 2018
  89 KernelVersion:  4.19
  90 Contact:        Vadim Pasternak <vadimpmellanox.com>
  91 Description:    These files show the system reset cause, as following: power
  92                 auxiliary outage or power refresh, ASIC thermal shutdown, halt,
  93                 hotswap, watchdog, firmware reset, long press power button,
  94                 short press power button, software reset. Value 1 in file means
  95                 this is reset cause, 0 - otherwise. Only one of the above
  96                 causes could be 1 at the same time, representing only last
  97                 reset cause.
  98
  99                 The files are read only.
 100
 101 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
 102                                                 reset_comex_pwr_fail
 103                                                 reset_from_comex
 104                                                 reset_system
 105                                                 reset_voltmon_upgrade_fail
 106
 107 Date:           November 2018
 108 KernelVersion:  4.21
 109 Contact:        Vadim Pasternak <vadimpmellanox.com>
 110 Description:    These files show the system reset cause, as following: ComEx
 111                 power fail, reset from ComEx, system platform reset, reset
 112                 due to voltage monitor devices upgrade failure,
 113                 Value 1 in file means this is reset cause, 0 - otherwise.
 114                 Only one bit could be 1 at the same time, representing only
 115                 the last reset cause.
 116
 117                 The files are read only.