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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.
- 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
- 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*/config1
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2
- Date: January 2020
- KernelVersion: 5.6
- Contact: Vadim Pasternak <vadimpmellanox.com>
- Description: These files show system static topology identification
- like system's static I2C topology, number and type of FPGA
- devices within the system and so on.
- The files are read only.
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_ac_pwr_fail
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_platform
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_soc
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_pwr_off
- Date: January 2020
- KernelVersion: 5.6
- Contact: Vadim Pasternak <vadimpmellanox.com>
- Description: These files show the system reset causes, as following: reset
- due to AC power failure, reset invoked from software by
- assertion reset signal through CPLD. reset caused by signal
- asserted by SOC through ACPI register, reset invoked from
- software by assertion power off signal through CPLD.
- The files are read only.
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis
- Date: January 2020
- KernelVersion: 5.6
- Contact: Vadim Pasternak <vadimpmellanox.com>
- Description: This file allows to retain ASIC up during PCIe root complex
- reset, when attribute is set 1.
- The file is read/write.
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp
- Date: January 2020
- KernelVersion: 5.6
- Contact: Vadim Pasternak <vadimpmellanox.com>
- Description: This file allows to overwrite system VPD hardware wrtie
- protection when attribute is set 1.
- The file is read/write.
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status
- Date: January 2020
- KernelVersion: 5.6
- Contact: Vadim Pasternak <vadimpmellanox.com>
- Description: This file exposes the configuration update status of burnable
- voltage regulator devices. The status values are as following:
- 0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
- The file is read only.
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version
- Date: January 2020
- KernelVersion: 5.6
- Contact: Vadim Pasternak <vadimpmellanox.com>
- Description: This file exposes the firmware version of burnable voltage
- regulator devices.
- The file is read only.
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_pn
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_pn
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_pn
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_pn
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version_min
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version_min
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version_min
- What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version_min
- Date: July 2020
- KernelVersion: 5.9
- Contact: Vadim Pasternak <vadimpmellanox.com>
- Description: These files show with which CPLD part numbers and minor
- versions have been burned CPLD devices equipped on a
- system.
- The files are read only.
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