Found this on a reliable disney site:
The non-smoking buildings at Disney's Port Orleans Resort-Riverside are:
In Alligator Bayou buildings 14, 15, 16, 17, 24, 26, 27, 34, 35, 36, 37 and 39.
In Magnolia Bend Parterre Place, Magnolia Terrace and part of Acadian House.
The smoking buildings at Dixie Landings are:
In Alligator Bayou buildings 18, 25, 28 and 38.
In Magnolia Bend Oak Manor and part of Acadian House.