Lo,
To connect Native FC/FCoE into any port on a N-5548 you would require the N-5548UP model, Short for Unified Ports meaning the ports can take FC/FCoE/Eth. If you have a N-5548P you will require one of the expansion cards for your SAN connectivity as all fixed port are Eth only.
The expansion modules available is on the data sheet here.
The configuration guides are available here.
HTH