Re: New net features for added performance

[Andi Kleen]

On Mon, Feb 26, 2001 at 03:48:31PM -0800, David S. Miller wrote:
> 
> Andi Kleen writes:
>  > 4) Better support for aligned RX by only copying the header
> 
> Andi you can make this now:
> 
> 1) Add new "post-header data pointer" field in SKB.

That would imply to let the drivers parse all headers to figure out the length.
I think it's better to have a "header base" and "data base" pointer.
The driver would just copy some standard size that likely contains all of
the header 
When you're finished with the header use 
skb->database+(skb->hdrptr-skb->hdrbase) to get the start of data. 

Or did I misunderstand you?

> 3) Enforce correct usage of it in all the networking :-)

,) -- the tricky part.

-Andi