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What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
Date: June 2018
KernelVersion: 4.19
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: This file shows ASIC health status. The possible values are:
0 - health failed, 2 - health OK, 3 - ASIC in booting state.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
Date: June 2018
KernelVersion: 4.19
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show with which CPLD versions have been burned
on carrier and switch boards.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
Date: December 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: This file shows the system fans direction:
forward direction - relevant bit is set 0;
reversed direction - relevant bit is set 1.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show with which CPLD versions have been burned
on LED or Gearbox board.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files enable and disable the access to the JTAG domain.
By default access to the JTAG domain is disabled.
The file is read/write.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
Date: June 2018
KernelVersion: 4.19
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: This file allows iio devices selection.
Attribute select_iio can be written with 0 or with 1. It
selects which one of iio devices can be accessed.
The file is read/write.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu2_on
/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle
/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
Date: June 2018
KernelVersion: 4.19
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files allow asserting system power cycling, switching
power supply units on and off and system's main power domain
shutdown.
Expected behavior:
When pwr_cycle is written 1: auxiliary power domain will go
down and after short period (about 1 second) up.
When psu1_on or psu2_on is written 1, related unit will be
disconnected from the power source, when written 0 - connected.
If both are written 1 - power supplies main power domain will
go down.
When pwr_down is written 1, system's main power domain will go
down.
The files are write only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_aux_pwr_or_ref
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_asic_thermal
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_halt
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_wd
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_fw_reset
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_long_pb
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_main_pwr_fail
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_short_pb
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_reset
Date: June 2018
KernelVersion: 4.19
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show the system reset cause, as following: power
auxiliary outage or power refresh, ASIC thermal shutdown, halt,
hotswap, watchdog, firmware reset, long press power button,
short press power button, software reset. Value 1 in file means
this is reset cause, 0 - otherwise. Only one of the above
causes could be 1 at the same time, representing only last
reset cause.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_pwr_fail
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_comex
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show the system reset cause, as following: ComEx
power fail, reset from ComEx, system platform reset, reset
due to voltage monitor devices upgrade failure,
Value 1 in file means this is reset cause, 0 - otherwise.
Only one bit could be 1 at the same time, representing only
the last reset cause.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show with which CPLD versions have been burned
on LED board.
The files are read only.
Date: June 2019
KernelVersion: 5.3
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show the system reset cause, as following:
COMEX thermal shutdown; wathchdog power off or reset was derived
by one of the next components: COMEX, switch board or by Small Form
Factor mezzanine, reset requested from ASIC, reset cuased by BIOS
reload. Value 1 in file means this is reset cause, 0 - otherwise.
Only one of the above causes could be 1 at the same time, representing
only last reset cause.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd
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