DMA transfers between machines

Thread View: comp.sys.sgi.misc

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1 total messages Started by Ralf Beyer DLR Mon, 25 Jan 1993 13:58

#267

Author: Ralf Beyer DLR
Date: Mon, 25 Jan 1993 13:58

26 lines
1253 bytes

Hi,

we would like to DMA transfer data from a SGI machine to another
machine (DEC LSI11). Both machines are connected by Ethernet and
have Ethernet controllers.

On the LSI11 there is no room for the overhead required by TCP/IP
or UDP. The LSI11 initiates a DMA request (memory address, block
size etc.) and expects the SGI machine to listen and to respond
with a DMA transfer.

QUESTION: What is to do or how must the SGI machine be configured
	  to be able to receive the DMA request via the Ethernet
	  and then in turn make the DMA transfer ?

Any hint would be very much appreciated.

Ralf Beyer

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Ralf Beyer
German Aerospace Research Establishment (DLR), Institute for Flight
Guidance, Flughafen, D-3300 Braunschweig, Fed. Rep. of Germany
Internet: beyer@bflsgu.fl.bs.dlr.de (EARN/BITNET: fl17@dlrvmbs.bitnet) 
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