The source code looks like it is set for a target of 100 and an interval of 5. I use PFSense and CoDel is working great for me right now. Pretty much 0ms of bufferbloat on the DSLReports tests. If it actually is misconfigured, it's working great for me.

codel_alloc(int target, int interval, int ecn)

cl->cl_codel = codel_alloc(100, 5, 0);