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From: watstar@watale.waterloo.EDU (Michael Shiels - WatStar/pc Network Project)
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: Re:  non-blocking sends in CMU-PCIP
Message-ID: <8711161321.AA02945@watale.uucp>
Date: Mon, 16-Nov-87 08:21:22 EST
Article-I.D.: watale.8711161321.AA02945
Posted: Mon Nov 16 08:21:22 1987
Date-Received: Wed, 18-Nov-87 02:18:38 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 3

You can get interrupts on transmission complete for 3com 3c501 ethernet
cards but I have never seen a driver written to use it.  You could then
queue up outgoing packets and make the driver much more efficient