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
  16 Date:           June 2018
  17 KernelVersion:  4.19
  18 Contact:        Vadim Pasternak <vadimpmellanox.com>
  19 Description:    These files show with which CPLD versions have been burned
  20                 on carrier and switch boards.
  21
  22                 The files are read only.
  23
  24 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
  25 Date:           June 2018
  26 KernelVersion:  4.19
  27 Contact:        Vadim Pasternak <vadimpmellanox.com>
  28 Description:    This file allows iio devices selection.
  29
  30                 Attribute select_iio can be written with 0 or with 1. It
  31                 selects which one of iio devices can be accessed.
  32
  33                 The file is read/write.
  34
  35 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
  36                 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu2_on
  37                 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle
  38                 /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
  39 Date:           June 2018
  40 KernelVersion:  4.19
  41 Contact:        Vadim Pasternak <vadimpmellanox.com>
  42 Description:    These files allow asserting system power cycling, switching
  43                 power supply units on and off and system's main power domain
  44                 shutdown.
  45                 Expected behavior:
  46                 When pwr_cycle is written 1: auxiliary power domain will go
  47                 down and after short period (about 1 second) up.
  48                 When  psu1_on or psu2_on is written 1, related unit will be
  49                 disconnected from the power source, when written 0 - connected.
  50                 If both are written 1 - power supplies main power domain will
  51                 go down.
  52                 When pwr_down is written 1, system's main power domain will go
  53                 down.
  54
  55                 The files are write only.
  56
  57 What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
  58                                                         reset_aux_pwr_or_ref
  59                                                         reset_asic_thermal
  60                                                         reset_hotswap_or_halt
  61                                                         reset_hotswap_or_wd
  62                                                         reset_fw_reset
  63                                                         reset_long_pb
  64                                                         reset_main_pwr_fail
  65                                                         reset_short_pb
  66                                                         reset_sw_reset
  67 Date:           June 2018
  68 KernelVersion:  4.19
  69 Contact:        Vadim Pasternak <vadimpmellanox.com>
  70 Description:    These files show the system reset cause, as following: power
  71                 auxiliary outage or power refresh, ASIC thermal shutdown, halt,
  72                 hotswap, watchdog, firmware reset, long press power button,
  73                 short press power button, software reset. Value 1 in file means
  74                 this is reset cause, 0 - otherwise. Only one of the above
  75                 causes could be 1 at the same time, representing only last
  76                 reset cause.
  77
  78                 The files are read only.