Subject: Re: if_ep semantics change.
To: John F. Woods <jfw@ksr.com>
From: Herb Peyerl <Herb.Peyerl@novatel.ca>
List: current-users
Date: 02/04/1994 09:59:14
: I seem to recall that a long time ago, there was a popular PC ethernet chip*
: which had a habit of, if hammered too soon with a packet after finishing the
: previous one, would forget that it had to byte-switch data (it was bigendian
: internally) and drop silly-looking packets into memory.  19969, byteswapped,
: is 484, a reasonable, if not obviously predictable, packet length; could this
: be what the problem is?  Reports of cards working OK before might have just
: been due to such packets being silently discarded.  It might be interesting
: to have the driver inspect the contents of these packets more closely to see
: if that is what is going on (i.e. check the ethernet address in the ethernet
: header to see if it, too, is byteswapped).
: 
: * and the name "wd8003" rings a bell, albeit faintly.

That sounds extremely like an 8390 boog rather than just a vendor specific sort
of thing.  There's a publishing opportunity for anyone willing to do a 
short novel on "NS8390 Bugs.


hpeyerl@novatel.ca                           |  NovAtel Commnications Ltd.
hpeyerl@fsa.ca                               | <nothing I say matters anyway>
       <NetBSD: A drinking group with a serious computing problem!>

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