From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 06 Apr 2005 12:01:57 +0100 (BST) Received: from mercury.mv.net ([IPv6:::ffff:199.125.85.40]:13811 "HELO mercury.mv.net") by linux-mips.org with SMTP id ; Wed, 6 Apr 2005 12:01:41 +0100 Received: (qmail 2939 invoked from network); 6 Apr 2005 07:01:39 -0400 Received: from 24-234-116-82.ptp.lvcm.net (HELO lithium) (firefly-bv@24.234.116.82) by mercury.mv.net with SMTP; 6 Apr 2005 07:01:39 -0400 X-Peer-Info: remote-ip 24.234.116.82 local-ip 199.125.85.40 local-name mercury.mv.net Reply-To: From: "Bogdan Vacaliuc" To: "'Dan Malek'" , "'Gilad Rom'" Cc: Subject: RE: Gigabit Ethernet Date: Wed, 6 Apr 2005 07:01:25 -0400 Organization: NGI Technology, LLC Message-ID: <002b01c53a98$0211ad00$0b03a8c0@lithium> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 In-Reply-To: <62642b91fa50ac5f881ed8fa9400deed@embeddededge.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Importance: Normal Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 7604 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: bvacaliuc@firefly.mv.com Precedence: bulk X-list: linux-mips On Tuesday, March 22, 2005 4:04 PM, Dan Malek wrote: > On Mar 22, 2005, at 11:56 AM, Gilad Rom wrote: > >> Has anyone ever tried using a Gigabit PCI >> adapter with one of the Au1x00 boards? Any success? > > Just remember that the Au1x00 boards are 32-bit , 33 MHz, > 3.3V PCI, so choose your boards accordingly. Please don't expect the > Au1x00 to run the TCP/IP stack anywhere near Gigabit speeds ..... :-) We have researching this topic for a little while, particularly from the FPGA standpoint. Although not specific to MIPS, I offer a few links which discuss the considerations for successfully sustaining gigabit ethernet transport. The "Gigabit System Reference Design", pg. 49 offers some benchmarks obtained using MontaVista Linux on a PowerPC 405. Key takeaways are that the data payload must not be handled by the stack (DMA direct from framebuffer/fifo/sdram) and must use jumbo (5000,9000) ethernet frames. Best Regards, -bogdan --- EE Times, "Altera Demonstrates FPGA for video-over-IP", March 2005, http://www.embedded.com/showArticle.jhtml?articleID=159903648 Altera, "Video Over IP Reference Design", March 2005, http://www.altera.com/solutions/refdesigns/sys-sol/broadcast/ref-video.html Xilinx, "Gigabit System Reference Design", June 2004, http://direct.xilinx.com/bvdocs/appnotes/xapp536.pdf Xilinx, "Considerations for High-Bandwidth TCP/IP PowerPC Applications", XCell Journal pg.14-16, Winter 2004, http://www.xilinx.com/publications/xcellonline/xcell_51/xc_pdf/xc_xcell51.pdf Marco Riccioli, Xilinx "Getting the most TCP/IP from your Embedded Processor", Embedded World 2005, http://www.treck.com/xilinx.pdf From mboxrd@z Thu Jan 1 00:00:00 1970 Reply-To: From: "Bogdan Vacaliuc" Subject: RE: Gigabit Ethernet Date: Wed, 6 Apr 2005 07:01:25 -0400 Message-ID: <002b01c53a98$0211ad00$0b03a8c0@lithium> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In-Reply-To: <62642b91fa50ac5f881ed8fa9400deed@embeddededge.com> Return-Path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org To: 'Dan Malek' , 'Gilad Rom' Cc: linux-mips@linux-mips.org Message-ID: <20050406110125.6MMYiQbedOkXbcqAJgIPD410EpBF0HEPdpctASqt4Es@z> On Tuesday, March 22, 2005 4:04 PM, Dan Malek wrote: > On Mar 22, 2005, at 11:56 AM, Gilad Rom wrote: > >> Has anyone ever tried using a Gigabit PCI >> adapter with one of the Au1x00 boards? Any success? > > Just remember that the Au1x00 boards are 32-bit , 33 MHz, > 3.3V PCI, so choose your boards accordingly. Please don't expect the > Au1x00 to run the TCP/IP stack anywhere near Gigabit speeds ..... :-) We have researching this topic for a little while, particularly from the FPGA standpoint. Although not specific to MIPS, I offer a few links which discuss the considerations for successfully sustaining gigabit ethernet transport. The "Gigabit System Reference Design", pg. 49 offers some benchmarks obtained using MontaVista Linux on a PowerPC 405. Key takeaways are that the data payload must not be handled by the stack (DMA direct from framebuffer/fifo/sdram) and must use jumbo (5000,9000) ethernet frames. Best Regards, -bogdan --- EE Times, "Altera Demonstrates FPGA for video-over-IP", March 2005, http://www.embedded.com/showArticle.jhtml?articleID=159903648 Altera, "Video Over IP Reference Design", March 2005, http://www.altera.com/solutions/refdesigns/sys-sol/broadcast/ref-video.html Xilinx, "Gigabit System Reference Design", June 2004, http://direct.xilinx.com/bvdocs/appnotes/xapp536.pdf Xilinx, "Considerations for High-Bandwidth TCP/IP PowerPC Applications", XCell Journal pg.14-16, Winter 2004, http://www.xilinx.com/publications/xcellonline/xcell_51/xc_pdf/xc_xcell51.pdf Marco Riccioli, Xilinx "Getting the most TCP/IP from your Embedded Processor", Embedded World 2005, http://www.treck.com/xilinx.pdf