[nfe] NVIDIA nForce4 CK804 MCP9 isn't working

Hi,

I've tried to use if_nfe with NVIDIA nForce4 CK804 MCP9 NIC (was
using if_nve before without issues).

FreeBSD 7.0-CURRENT #3: Wed Mar 28 00:44:12 MSD 2007 amd64

almost GENERIC kernel, only changes are SCHED_ULE and nodevice nve.

dmesg:
nfe0: <NVIDIA nForce4 CK804 MCP9 Networking Adapter> port 0xe800-0xe807
mem 0xf5102000-0xf5102fff irq 23 at device 10.0 on pci0
nfe0: using obsoleted if_watchdog interface
nfe0: bpf attached
nfe0: Ethernet address: 00:0f:ea:7d:f3:20
nfe0: [MPSAFE]
nfe0: [ITHREAD]
miibus1: <MII bus> on nfe0
ciphy0: <Cicada CS8201 10/100/1000TX PHY> PHY 7 on miibus1
ciphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT,
1000baseT-FDX, auto
nfe0: link state changed to DOWN
nfe0: gigabit link up
nfe0: link state changed to UP

pciconf:
nfe0_at_pci0:10:0: class=0x068000 card=0xe0001458 chip=0x005710de rev=0xa3
hdr=0x00
    vendor     = 'Nvidia Corp'
    device     = 'nForce4 Ultra NVidia Network Bus Enumerator'
    class      = bridge

ifconfig:
nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
        options=2b<RXCSUM,TXCSUM,VLAN_MTU,JUMBO_MTU>
        ether 00:0f:ea:7d:f3:20
        inet 10.10.10.1 netmask 0xffffff00 broadcast 10.10.10.255
        media: Ethernet autoselect (1000baseTX <full-duplex>)
        status: active

ping 10.10.10.2 gives following tcpdump output:
01:45:37.304300 arp who-has 10.10.10.2 tell 10.10.10.1
01:45:38.305363 arp who-has 10.10.10.2 tell 10.10.10.1
01:45:39.306300 arp who-has 10.10.10.2 tell 10.10.10.1
and so on...

arp -a:
? (10.10.10.2) at (incomplete) on nfe0 [ethernet]

Manually changing media options, -rxcsum, -txcsum, adding static ARP
entry for 10.10.10.2 doesn't help.

(and to mention once more, exactly the same setup, including ethernet
media options, works with if_nve).

-- 
Yuri