[CentOS] tg3 gigabit speed

Jure Pečar pegasus at nerv.eu.org
Sat Mar 4 18:07:39 UTC 2006


Hi all,

I have two HP DL145 G1 machines, running centos4 (2.6.9-22.0.2.ELsmp).
Nics are recognized as:

eth0: Tigon3 [partno(BCM95704) rev 2002 PHY(5704)] (PCIX:100MHz:64-bit)
10/100/1000BaseT Ethernet 00:00:1a:19:f1:05 
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1] TSOcap
[1]
eth1: Tigon3 [partno(BCM95704) rev 2002 PHY(5704)] (PCIX:100MHz:64-bit)
10/100/1000BaseT Ethernet 00:00:1a:19:f1:04 
eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1] TSOcap
[1]

Both machines are wired in the same way: eth0 is connected do 100mbit
switch, eth1 to a gigabit switch. But:

# mii-tool 
eth0: negotiated 100baseTx-FD, link ok
eth1: negotiated 100baseTx-FD flow-control, link ok

If I force eth1 to 1000 with ethtool, I get no link and then it
autonegotiates itself back to 100. I can't even get them to talk at gigabit
speed if I connect both machines together with crossover cable!

Am I doing something wrong or is this a hardware problem?


-- 

Jure Pečar
http://jure.pecar.org/



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