Problems getting 905b-tx into 100BaseT

[Donald Becker]

On Mon, 12 Apr 1999, chris macLean wrote:

> I am trying to get my 3C905B-TX into 100BaseT mode and am having little
> success.  When the machine POSTS, the 100Mb/s light on my hub and machine
> both are lit.  Once the kernel loads the module 3c59x, the light switches
> to 10Mb/s on both.
...
> 3c59x.c:v0.99H 11/17/98 Donald Becker
> http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
> eth0: 3Com 3c905B Cyclone 100baseTx at 0xd000,  00:10:4b:30:3d:d3, IRQ 12
>   8K byte-wide RAM 5:3 Rx:Tx split, Autonegotiate interface.
>   Media override to transceiver type 4 (100baseTX).

You have some software setting that is forcing the transceiver type to
100baseTx-Symbol-Mode, which isn't the correct setting for the Cyclone.

You should be using the default setting, which is Autonegotiate, unless you
have a card with a BNC connector in which case you may also use the 10base2
override.

Donald Becker					  becker@cesdis.gsfc.nasa.gov
USRA-CESDIS, Center of Excellence in Space Data and Information Sciences.
Code 930.5, Goddard Space Flight Center,  Greenbelt, MD.  20771
301-286-0882	     http://cesdis.gsfc.nasa.gov/people/becker/whoiam.html