- Why I did it
InvalidPsuVolWA.run might raise exception if user power off PSU when it is running. This exception is not caught and will be raised to psud which causes psud failed to update PSU data to DB.
- How I did it
1. Change the log level when WA does not work. This could happen when user power off PSU, hence changing the log level from error to warning is better
2. Change the wait time from 5 to 1 to avoid introduce too much delay in psud. 1 second is usually enough per my test
3. Give a default return value for function get_voltage_low_threshold and get_voltage_high_threshold to avoid exception reach to psud
- How to verify it
Manual test.
Run sonic-mgmt regression
- Why I did it
There is a hardware bug that PSU voltage threshold sysfs returns incorrect value. The workaround is to call "sensor -s" to refresh it.
- How I did it
Call "sensor -s" when the threshold value is not incorrect and PSU is "DELTA 1100"
- How to verify it
Unit test and Manual test
- Why I did it
Update NVIDIA Copyright header to "mellanox" files which were changed since 1.1.2022
- How I did it
Update the copyright header
- How to verify it
Sanity tests and PR checkers.
- Why I did it
Fix issue: psu might use wrong voltage sysfs which causes invalid voltage value. The flow is like:
1. User power off a PSU
2. All sysfs files related to this PSU are removed
3. User did a reboot/config reload
4. PSU will use wrong sysfs as voltage node
- How I did it
Always try find an existing sysfs.
- How to verify it
Manual test
- Why I did it
* To support systems with dynamic port configuration
* Apply lazy initialization to faster the speed of loading platform API
- How I did it
* Add module.py to implement dynamic port configuration (aka line card model)
* Adjust chassis.py, platform.py, thermal.py, sfp.py to support dynamic port configuration
* Optimize existing code
- How to verify it
Platform regression on MSN4700, MSN3800 and MSN2700, 100% pass
Unit test covers all new changes.
