Article View: comp.sys.sgi.misc
Article #267DMA transfers between machines
From: Ralf Beyer DLR
Date: Mon, 25 Jan 1993 13:58
Date: Mon, 25 Jan 1993 13:58
26 lines
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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 ---------------------------------------------------------------------- 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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Path: arc1-ca.pugleaf.net!sparky!uunet!psinntp!cmcl2!adm!news From: beyer@bflsgu.fl.bs.dlr.de (Ralf Beyer DLR) Newsgroups: comp.sys.sgi.misc Subject: DMA transfers between machines Message-ID: <35205@adm.brl.mil> Date: 25 Jan 93 13:58:17 GMT Sender: news@adm.brl.mil Lines: 27