** Also affects: linux-bluefield (Ubuntu Jammy)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2034594
Title:
mlxbf-ptm: add thermal envelope debugfs node
Status in linux-bluefield package in Ubuntu:
New
Status in linux-bluefield source package in Jammy:
New
Bug description:
SRU Justification:
[Impact]
mlxbf-ptm is a kernel driver that provides debufgs interface for system
software to monitor Bluefield devices' power and thermal management
parameters.
[Fix]
This change:
* This change adds additional debugfs node that gets the current thermal
envelope set in the thermal state machine
[Test Case]
* After installing the kernel module, debugfs entry at
/sys/kernel/debug/mlxbf-ptm will be created
* monitors/status folder contains read-only parameters reported from the
Bluefield device
* cat /sys/kernel/debug/mlxbf-ptm/temp_envelope shows current thermal
envelope
[Regression Potential]
* Minimal - as these are read-only parameters that report Bluefield device
information.
[Other]
* This code is likely to change depending on feedback we received from
maintainers.
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