Subject: Re: A few Sun4m changes
To: None <rhealey@helios.mn.org>
From: David S. Miller <davem@caip.rutgers.edu>
List: port-sparc
Date: 04/26/1996 19:14:00
   From: rhealey@helios.mn.org (Rob Healey)
   Date: Fri, 26 Apr 1996 10:05:30 -0500 (CDT)

	   My end personal, and biased, opinion on the subject is that
	   a 10 has no real business on a heavily used net using it's
	   motherboard ether. It should work OK as a workstation at
	   home though assuming you don't have much traffic on the
	   home network.

Note, everyones previous experiences with the on board le found on
SS10's are based upon how it acted with Sun's drivers.  Please
entertain the possibilty that Sun may not be programming the thing
correctly in some cases ;-)  I know they at the least don't use the
dma2 ECACHE very efficiently (checked the dma csr while a machine was
up from the PROM to confirm that they don't attempt to use delayed
ECACHE flushing), and even with delayed ECACHE flushing disabled you
have to still flush/drain it in your tx/rx irq handler else you get
funny behavior when you hit the ethernet saturation point.

Later,
David S. Miller
davem@caip.rutgers.edu