Linux-PowerEdge digest, Vol 1 #741 - 10 msgs

Jeff Garzik jgarzik at redhat.com
Wed Dec 4 12:08:00 CST 2002


On Wed, Dec 04, 2002 at 11:40:06AM -0600, Eric Rostetter wrote:
> In some cases, you need to disable autonegotiate to "force" the setting,
> otherwise it is just a "suggestion" for the autonegotiate.  Try:
> 
> options bcm5700 auto_speed=0 full_duplex=1
> 
> (My file reads: options bcm5700 auto_speed=0 line_speed=100 full_duplex=1 )

Two comments:

1) Never force 10/100 full duplex on the NIC, it is _usually_ wrong.

http://www.tux.org/hypermail/linux-tulip/2000-Apr/0002.html
http://www.tux.org/hypermail/linux-tulip/2000-Mar/0171.html

2) I wonder why tg3 driver isn't being used?  Folks normally report
higher performance with tg3 versus bcm5700.  Our bug reporters are
showing that you simply cannot get wire speed with bcm5700 in many
situations, where tg3 does do wire speed.

	Jeff






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