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Re: The ultimate TOE design

To: Leonid Grossman <leonid.grossman@xxxxxxxx>
Subject: Re: The ultimate TOE design
From: Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx>
Date: Fri, 24 Sep 2004 20:09:15 +0200
Cc: "'David S. Miller'" <davem@xxxxxxxxxxxxx>, "'Jeff Garzik'" <jgarzik@xxxxxxxxx>, alan@xxxxxxxxxxxxxxxxxxx, paul@xxxxxxxx, netdev@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <200409241321.i8ODLf39012346@xxxxxxxxxxxxxxxxx>
References: <20040924130738.GB24093@xxxxxxxxxxxxxxxxx> <200409241321.i8ODLf39012346@xxxxxxxxxxxxxxxxx>
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On Fri, Sep 24, 2004 at 06:21:35AM -0700, Leonid Grossman wrote:

> > > And at 10GbE, embedded CPUs just don't cut it - it has to be custom 
> > > ASIC (granted, with some means to simplify debugging and reduce the 
> > > risk of hw bugs and TCP changes).
> > 
> > Intel's IXP2800 can do 10GbE.
> Hi Lennert,


> I was referring to the server side. 
> One can certanly build a 10GbE box based on IPX2800 (or some other parts),
> but at 17-25W it is not usable in NICs since the entire PCI card budget is
> less than that - nothing left for 10GbE PHY, memory, etc.

Ah, ok, that makes sense.  As someone else also noted, the IXP2800
only has a 64/66 PCI interface anyway, so it wouldn't really be
suitable for the task you were referring to.


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