Broadcom NetXtreme II BCM57810 10 Gigabit Ethernet appearing as unclaimed on ubuntu 20.04

I'm new to linux & I'm trying to add external ethernet NIC to

dl380 gen9

server, the os is **ubuntu 20.04**. I can't find the NICs using ifconfig, and after some googling I used

-C network

and it's appearing as

unclaimed

full description:

Broadcom Inc. and subsidiaries NetXtreme II BCM57810 10 Gigabit Ethernet [14e4:168e] (rev 11)