[tulip-bug] New Intel 21143-PD - no MII found!

[Donald Becker]

On Tue, 23 May 2000, workgroupvideo wrote:

>  I have been getting CNET CN100TX cards in lots of 20 for a couple years
> now for $30 ea. Never had a problem till now.. the cards have recently
> been switched over to INTEL chips (INTEL 21143-PD) and all of a sudden the
> MII transcievers aren't being seen by the driver and I'm getting 200kB/sec
> transfers instead of 11MB/sec transfers with collisions are all over the
> place.

I'm guessing that the newer cards do not have MII transceivers, but instead
use SYM (SYMbol mode) transceivers.

What is your link partner?  Is it doing full duplex?  That would account for
the slow speed and high collision rate.

> I can't get the newest drivers to compile on 2.2.15 or 2.3.99-pre5, and I
> have been seeing this problem with the drivers in both stock
> kernels. HELP! 

The v92 driver should work fine with 2.2.15.
  http://www.scyld.com/network/updates.html
  http://www.scyld.com/network/tulip.html
    ftp://www.scyld.com/pub/network/tulip.c

> tulip-diag.c:v2.00 4/19/2000 Donald Becker (becker@scyld.com)
> Index #1: Found a Digital DS21143 Tulip adapter at 0xd400.
> Port selection is 100mbps-SYM/PCS 100baseTx scrambler, full-duplex.
...
> Internal autonegotiation state is 'Negotiation complete'.

This report is normal if a SYM transceiver is connected.


Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Beowulf Clusters / Linux Installations
Annapolis MD 21403