Dell 2950 will only connect at 100 Mbps

[Jacob Bunk Nielsen]

Hi

I have a Dell 2950 connected to a HP 5304xl gigabit-switch. I have
several other servers connecting to this switch with gigabit speed.

Unfortunately I can only get the 2950 to run 100 Mbps, and if I check
with mii-tool it tells me that the driver only reports 100 Mbps as
capability. Why?

$ uname -a
Linux foo 2.6.17-2-amd64 #1 SMP Wed Sep 13 17:49:33 CEST 2006 x86_64 GNU/Linux
$ dmesg |grep eth
eth0: Broadcom NetXtreme II BCM5708 1000Base-T (B1) PCI-X 64-bit 133MHz found at mem f4000000, IRQ 169, node addr 00188b32f9f5
eth1: Broadcom NetXtreme II BCM5708 1000Base-T (B1) PCI-X 64-bit 133MHz found at mem f8000000, IRQ 169, node addr 00188b32f9f3
bnx2: eth1: using MSI
ADDRCONF(NETDEV_UP): eth1: link is not ready
bnx2: eth1 NIC Link is Up, 100 Mbps full duplex
$ sudo mii-tool eth1 -v
eth1: negotiated 100baseTx-FD, link ok
  product info: vendor 00:08:18, model 54 rev 5
  basic mode:   autonegotiation enabled
  basic status: autonegotiation complete, link ok
  capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  advertising:  100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
  link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

How do I get my 2950 to run gigabit? Will it just work, if I try:

sudo mii-tool --force="1000BaseTx-FD" eth1  ?

The switch port is a gigabit port:

switch> show interfaces brief A6

 Status and Counters - Port Status

                  | Intrusion                           MDI   Flow
  Port  Type      | Alert     Enabled Status Mode       Mode  Ctrl
  ----- --------- + --------- ------- ------ ---------- ----- -----
  A6    100/1000T | No        Yes     Up     100FDx     MDIX  off

-- 
Jacob