| 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. |
