Re: What is the state of TCP offload support in the kernel?

[Matt Thomas <matt%3am-software.com@localhost>]

On Jan 2, 2008, at 10:29 AM, patrick%klos.com@localhost wrote:

> What is the current state of TCP offload support in the NetBSD  
> kernel?  I
> don't mean TCP checksumming or LSO, but actually allowing the  
> adapter to
> manage the entire TCP connection?
>
> I'm currently porting the driver for a TOE card to NetBSD (from  
> FreeBSD), and
> I know the manufacturer wants TOE support in NetBSD as well, but I  
> couldn't
> find any refernece in the code.  Sorry if I didn't find any obvious  
> info
> searching the tech-net archives.
>
> Thanks,

That's because there is no support.  The problem is a lot of TCP/IP/ 
UDP state
is global.  If it was per-interface, this would be a lot less of an  
issue.
But there still needs to be some interaction with the kernel.