Atheros WIRED ethernet NIC

I am real new to FreeBSD. I am using it because I built my own server using FreeNAS. I got this Atheros based dual port G-bit ethernet PCI adapter for link aggregation for me NAS server. How do I figure out which driver to call so that it will work? everything I have seen here and in other sites is for WiFi and this is wired ethernet. Or will I need to compile my own driver modules?
 
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