Problem with IBM NetXtreme 1000-T GigaEthernet Adapter

[Senandung Mendonan]

Dear list,
I'm running the latest FreeBSD 6.1-RELEASE-p3 on the following piece of
hardware:-
IBM xSeries 336
- 1 add-on PCI dual-port NIC (IBM Netxtreme Dualpt Ethernet adapter)
matching the Broadcom BCM5704C Dual Gigabit Ethernet chipset (detected
as bge0 and bge1)
- 2 internal built-in NICs matching the Broadcom BCM5721 Gigabit
Ethernet chipset. (detected as bge2 and bge3)

The internal NICs work fine (bge2 and bge3), however the add-on PCI NIC
has the following issues:-
On a GB Ethernet switchport (I am using Cisco Catalyst C3750G):-
- When set to auto-detect, or forced 1000baseTX on both sides
(switchport and server), the LED on both switchport and NIC dies the
moment FreeBSD OS is booting (i.e. when FreeBSD bge driver activated).
Previously, it was working fine at BIOS level.
- The only working setup is forced 100baseTX full-duplex on both sides
(switchport and server), however with intermittent link (ping yields
packet loss every 2-3 out of 10 packets or so).

I tried to use a FE version of the switch (Cisco Catalyst C3750), and a
single-port version of the said NIC, with the same results (auto detect
fails, and can only live with intermittent forced 100baseTX
full-duplex).

Any pointers would be appreciated -- thanks. :)

--mendonan
"Yang mimpikan secangkir kopi panas dengan selimut.."
 (Dreaming of a cup of hot coffee, and a blanket..")