NIC BCM5751 not supported

[Martin Alejandro Paredes Sanchez]

Hi:

I am installing FreeBSD in a IBM ThinkCentre 8136-KSQ, it has a network card 
Boradcom in the mother board. I see a chip with this numbers:

Broadcom
BCM5751FKFB
HS0521 P21
744910 N

Whit "dmesg | grep -i ethe" I got:

pci2: <network, ethernet> at device 0.0 (no driver attached)

With "pciconf -lv" I got:

none3 at pci2:0:0: class=0x020000 card=0x02f71014 chip=0x167e14e4 rev=0x11 
hdr=0x00
    vendor   = 'Broadcom Corporation'
    device   = 'BCM5751F NetXtreme Fast Ethernet PCI Express'
    class    = network
    subclass = ethernet

The manual for bge(4), says:

bge -- Broadcom BCM570x/5714/5721/5750/5751/5789 PCI Gigabit Ethernet adapter 
driver

The GENERIC kernal has the device bge, I confirm it loading the module:

# kldload if_bge
module_register: module pci/miibus already exists!
Module pci/miibus failed to register: 17
module_register: module pci/bge already exists!
Module pci/bge failed to register: 17
kldload: can't load if_bge: File exists

is this nic supported?

TIA