Re: More performance for the TCP stack by using additional hardwarechip on NIC

[Avi Kivity]

David S. Miller wrote:

> On Sun, 17 Apr 2005 13:29:14 +0300
> Avi Kivity <avi@xxxxxxxxxx> wrote:
>
>  
>
> > TOEs can remove the data copy on receive. In some applications (notably
> > storage), where the application does not touch most of the data, this is
> > a significant advantage that cannot be achieved in a software-only
> > solution.
> >    
>
> You don't need to offload the TCP stack to make this case get
> zero-copy behavior.
>  
yes, Willy Tarreau outlined how buffering on the nic and splitting the 
dma can achieve zero copy.

are there any adapters out there which work this way?

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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