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Current fan monitor assumes the use of the FanSpeed interface for fan
targets.
For fans controlled by pwm, FanPwm interface is added.
This commit adds a "target_interface" config parameter, so that user
can specify the interface for the fan targets.
E.g.
- name: fan0
has_target: true
target_interface: xyz.openbmc_project.Control.FanPwm
This config is optional and defaults to FanSpeed, so the current code
will not be affected.
Tested: Use this config on Romulus, ensures fan monitor gets fan
target from FanPwm interface and works OK.
Change-Id: I262a486c335b2b43a46af7abdd0e71e95a133b98
Signed-off-by: Lei YU <mine260309@gmail.com>
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For fans controlled via pwm, the fan target and speed are different,
where the fan target is pwm and the speed is rpm.
Usually it is a linear mapping from pwm to rpm.
So this commit defines the optional configs, factor and offset for
calculating the expected fan speed from target, e.g.
- name: fan0
has_target: true
factor: 21
offset: 1600
The fan monitor service will calculate expected fan speed as:
target * factor + offset
The default value is 1 for factor and 0 for offset if they are not
defined.
Tested: Use this config together with the following commit's changes,
test on Romulus and ensures the fan monitor works OK;
Without this config, fan monitor always mark fans as
non-functional due to the fan speed does not match the pwm
value.
Change-Id: If5e25368b4530df7a7face9377efb58804db21df
Signed-off-by: Lei YU <mine260309@gmail.com>
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Update the YAML documentation with sensor
trust information.
Change-Id: Ia5407b079b5dcfbd4063cec8dbba032fefa11b6b
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
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Run the python script to generate fan_zone_defs.cpp
Change-Id: I242aa4246a277509ddbcf1c62fec96782a48b37b
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
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