[202311][Mellanox] Enable CMIS host management (#16846) #17684
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- Why I did it Enable CMIS host management for Mellanox devices which are expected to support the feature - How I did it new thread in a new file and changing logic in platform code in chassis.py which is calling this thread from get_change_event() this thread in the new file handles the state machine per port. first the static detection takes place once the thread is up (during switch bootup sequence), until final decision if it's FW control or SW control module. After it ends, the dynamic detection takes place, listening to changes in the sysfs fds, per port, so it will be able to detect plug in or out events of a cable. - How to verify it Enhanced unit tests run sonic mgmt on Nvidia SN4700 with CMIS host management enabled
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Cherry-pick PR #16846
Why I did it Enable CMIS host management for Mellanox devices which are expected to support the feature
How I did it new thread in a new file and changing logic in platform code in chassis.py which is calling this thread from get_change_event() this thread in the new file handles the state machine per port. first the static detection takes place once the thread is up (during switch bootup sequence), until final decision if it's FW control or SW control module. After it ends, the dynamic detection takes place, listening to changes in the sysfs fds, per port, so it will be able to detect plug in or out events of a cable.
How to verify it Enhanced unit tests
run sonic mgmt on Nvidia SN4700 with CMIS host management enabled
Why I did it
Work item tracking
How I did it
How to verify it
Which release branch to backport (provide reason below if selected)
Tested branch (Please provide the tested image version)
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Link to config_db schema for YANG module changes
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