ovs-appctl hwlog/set-level <module> <level>

Set hwlog level of <module> as detailed in <level>.
The <module> contains sdk/api/all; the <level> contains debug/info/warn/error|/off.

ovs-appctl hwlog/set-level all debug

Set hwlog level of 'all' module as 'debug'.

ovs-appctl hwlog/set-level sdk debug

Set hwlog level of 'sdk' module as 'debug'.

ovs-appctl hwlog/set-level api debug

Set hwlog level of 'api' module as 'debug'.