What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
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asic_health
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Date: June 2018
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KernelVersion: 4.19
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Contact: Vadim Pasternak <vadimpmellanox.com>
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Description: This file shows ASIC health status. The possible values are:
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0 - health failed, 2 - health OK, 3 - ASIC in booting state.
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The files are read only.
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What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
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cpld1_version
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cpld2_version
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Date: June 2018
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KernelVersion: 4.19
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Contact: Vadim Pasternak <vadimpmellanox.com>
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Description: These files show with which CPLD versions have been burned
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on carrier and switch boards.
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The files are read only.
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What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
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Date: June 2018
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KernelVersion: 4.19
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Contact: Vadim Pasternak <vadimpmellanox.com>
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Description: This file allows iio devices selection.
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Attribute select_iio can be written with 0 or with 1. It
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selects which one of iio devices can be accessed.
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The file is read/write.
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What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
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/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu2_on
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/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle
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/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
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Date: June 2018
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KernelVersion: 4.19
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Contact: Vadim Pasternak <vadimpmellanox.com>
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Description: These files allow asserting system power cycling, switching
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power supply units on and off and system's main power domain
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shutdown.
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Expected behavior:
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When pwr_cycle is written 1: auxiliary power domain will go
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down and after short period (about 1 second) up.
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When psu1_on or psu2_on is written 1, related unit will be
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disconnected from the power source, when written 0 - connected.
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If both are written 1 - power supplies main power domain will
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go down.
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When pwr_down is written 1, system's main power domain will go
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down.
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The files are write only.
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What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
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reset_aux_pwr_or_ref
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reset_asic_thermal
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reset_hotswap_or_halt
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reset_hotswap_or_wd
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reset_fw_reset
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reset_long_pb
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reset_main_pwr_fail
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reset_short_pb
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reset_sw_reset
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Date: June 2018
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KernelVersion: 4.19
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Contact: Vadim Pasternak <vadimpmellanox.com>
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Description: These files show the system reset cause, as following: power
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auxiliary outage or power refresh, ASIC thermal shutdown, halt,
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hotswap, watchdog, firmware reset, long press power button,
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short press power button, software reset. Value 1 in file means
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this is reset cause, 0 - otherwise. Only one of the above
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causes could be 1 at the same time, representing only last
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reset cause.
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The files are read only.
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