With iTunes Match enabled on an iOS device direct syncing of music via USB or Wi Fi is disabled. All music management takes place directly on the iDevice. All supported playlists are uploaded to the cloud and are available on your iDevice in the "Playlists" section."
Some criteria for Smart Playlists that are not supported are any Playlists that reference other playlists, comments, Checked. You may need to experiement a little with the smart playlists to get them just the way you want them in iOS.