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*/cpld3_version 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 or Gearbox 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 124What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version 125Date: November 2018 126KernelVersion: 5.0 127Contact: Vadim Pasternak <vadimpmellanox.com> 128Description: These files show with which CPLD versions have been burned 129 on LED board. 130 131 The files are read only. 132 133Date: June 2019 134KernelVersion: 5.3 135Contact: Vadim Pasternak <vadimpmellanox.com> 136Description: These files show the system reset cause, as following: 137 COMEX thermal shutdown; wathchdog power off or reset was derived 138 by one of the next components: COMEX, switch board or by Small Form 139 Factor mezzanine, reset requested from ASIC, reset cuased by BIOS 140 reload. Value 1 in file means this is reset cause, 0 - otherwise. 141 Only one of the above causes could be 1 at the same time, representing 142 only last reset cause. 143 144 The files are read only. 145 146What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal 147What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd 148What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic 149What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios 150What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd 151What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd 152