79 lines
2.9 KiB
ReStructuredText
79 lines
2.9 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0
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Kernel driver intel-m10-bmc-hwmon
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=================================
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Supported chips:
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* Intel MAX 10 BMC for Intel PAC N3000
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Prefix: 'n3000bmc-hwmon'
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Author: Xu Yilun <yilun.xu@intel.com>
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Description
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-----------
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This driver adds the temperature, voltage, current and power reading
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support for the Intel MAX 10 Board Management Controller (BMC) chip.
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The BMC chip is integrated in some Intel Programmable Acceleration
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Cards (PAC). It connects to a set of sensor chips to monitor the
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sensor data of different components on the board. The BMC firmware is
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responsible for sensor data sampling and recording in shared
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registers. The host driver reads the sensor data from these shared
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registers and exposes them to users as hwmon interfaces.
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The BMC chip is implemented using the Intel MAX 10 CPLD. It could be
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reprogramed to some variants in order to support different Intel
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PACs. The driver is designed to be able to distinguish between the
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variants, but now it only supports the BMC for Intel PAC N3000.
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Sysfs attributes
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----------------
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The following attributes are supported:
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- Intel MAX 10 BMC for Intel PAC N3000:
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======================= =======================================================
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tempX_input Temperature of the component (specified by tempX_label)
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tempX_max Temperature maximum setpoint of the component
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tempX_crit Temperature critical setpoint of the component
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tempX_max_hyst Hysteresis for temperature maximum of the component
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tempX_crit_hyst Hysteresis for temperature critical of the component
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temp1_label "Board Temperature"
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temp2_label "FPGA Die Temperature"
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temp3_label "QSFP0 Temperature"
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temp4_label "QSFP1 Temperature"
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temp5_label "Retimer A Temperature"
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temp6_label "Retimer A SerDes Temperature"
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temp7_label "Retimer B Temperature"
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temp8_label "Retimer B SerDes Temperature"
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inX_input Measured voltage of the component (specified by
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inX_label)
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in0_label "QSFP0 Supply Voltage"
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in1_label "QSFP1 Supply Voltage"
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in2_label "FPGA Core Voltage"
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in3_label "12V Backplane Voltage"
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in4_label "1.2V Voltage"
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in5_label "12V AUX Voltage"
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in6_label "1.8V Voltage"
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in7_label "3.3V Voltage"
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currX_input Measured current of the component (specified by
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currX_label)
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curr1_label "FPGA Core Current"
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curr2_label "12V Backplane Current"
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curr3_label "12V AUX Current"
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powerX_input Measured power of the component (specified by
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powerX_label)
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power1_label "Board Power"
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======================= =======================================================
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All the attributes are read-only.
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