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Date: Mon, 18 Sep 1995 11:55:19 -0400
From: Chitra Venkatramani <chitra@CS.SunySB.EDU>
Message-Id: <199509181555.LAA02220@cs.sunysb.edu>
To: freebsd-hackers@FreeBSD.org
Subject: DC21040 PCI Ethernet question
Sender: owner-hackers@FreeBSD.org
Precedence: bulk


I have the following questions about the 100Mbps Ethernet controller:

1) This card does DMA from specified memory addresses. How do
   I know when the DMA completes ? ie, I would actually like to know
   when I can safely modify the locations from which I'd requested
   data to be DMA'ed ?

2) What are the total sizes of the transmit and receive buffers 
   on the DC21040 card? 

Thanks in advance
-Chitra Venkatramani
(chitra@cs.sunysb.edu)