[vortex] Re: Case 254686: GX150 autonegotiate problem

Bill Cattey wdc@MIT.EDU
Wed Feb 6 19:12:01 2002


We've done some testing, and perhaps those in the know will be able to
account for the behavior, but it has left me more perplexed than ever.

Test 0: Build stock 1.16 3c59x.o from source and confirm the problem
still occurs.  RESULTS:
	Problem still occurs.
	Power cycling machine results in bad initial negotiation. 
	mii-diag says the negotiated speed is 100Base-Tx-FD.
	The full duplex light on the switch is OUT.
	Network throughput is TERRIBLE.

Test1: Build new 1.17 3c59x.o from Andrew Morton.  RESULTS:
	mii-diag says autonegotiation is NOT POSSIBLE and
that speed is fixed at 10Base-T half duplex.
	The full duplex light on the switch is OUT.
	Network througput is REASONABLE.

Test2: Take JUST the mii-related changes as per Andrew Morton's diffs,
and apply them to the 1.16 source.  RESULTS
	Same as test 1.

----

The next test to run is to install 1.17 on a GX150 that has no problem
with autonegotiate and see if the new driver ALSO perceives it as having
no MII.

AKPM:  What next steps do these test results suggest to you?

-wdc