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<TITLE>RE: [openib-general] Problem with 2.4.24 and gen1</TITLE>
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<P><FONT SIZE=2>Tavor mode and native Arbel mode have the same performance.</FONT>
<BR><FONT SIZE=2>The main change for the native mode is the ability to work without attached DDR and use the system memory instead.</FONT>
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<P><FONT SIZE=2>Tziporet</FONT>
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<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: Roland Dreier [<A HREF="mailto:roland@topspin.com">mailto:roland@topspin.com</A>]</FONT>
<BR><FONT SIZE=2>Sent: Monday, November 01, 2004 5:30 PM</FONT>
<BR><FONT SIZE=2>To: Ken MacInnis</FONT>
<BR><FONT SIZE=2>Cc: Tziporet Koren; Tech_Support; openib-general@openib.org</FONT>
<BR><FONT SIZE=2>Subject: Re: [openib-general] Problem with 2.4.24 and gen1</FONT>
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<P><FONT SIZE=2> Ken> Also, another question I have is fairly naive -- at what</FONT>
<BR><FONT SIZE=2> Ken> point are the Lion Cub (PCI Express) cards supported in the</FONT>
<BR><FONT SIZE=2> Ken> OpenIB stack? I seem to remember the Tavor code supporting</FONT>
<BR><FONT SIZE=2> Ken> them inherently but in a non-efficient manner if native code</FONT>
<BR><FONT SIZE=2> Ken> wasn't used.</FONT>
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<P><FONT SIZE=2>Lion Cub aka Arbel aka PCI Ex HCA is supported in Tavor compatibility</FONT>
<BR><FONT SIZE=2>mode right now by the mthca driver. I just received firmware and</FONT>
<BR><FONT SIZE=2>documentation for native mode last week, so support for that will be</FONT>
<BR><FONT SIZE=2>"coming soon." However Tavor mode is not really much of a performance</FONT>
<BR><FONT SIZE=2>hit -- on a suitable motherboard you should still be able to hit (bus</FONT>
<BR><FONT SIZE=2>limited) 20 Gb/sec of throughput.</FONT>
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<P><FONT SIZE=2> - Roland</FONT>
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