netdev - Re: [PATCH v2 04/13] Connection Manager

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Date:	Tue, 05 Dec 2006 09:03:35 -0600
From:	Steve Wise <swise@...ngridcomputing.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Evgeniy Polyakov <johnpol@....mipt.ru>, netdev@...r.kernel.org,
	openib-general@...nib.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH  v2 04/13] Connection Manager

On Mon, 2006-12-04 at 21:13 -0800, Roland Dreier wrote:
>  > It is for iwarp/rdma from description.
> 
> Yes, iWARP on top of 10G ethernet.
> 
>  > If it is 10ge, then why does it parse incomping packet headers and
>  > implements initial tcp state machine?
> 
> To establish connections to run RDMA over, I guess.  iWARP is RDMA
> over TCP.
> 

The driver uses messages exchanged to and from the HW via the Ethernet
driver to setup TCP connections.  No TCP processing is done in the host.
The hardware does all the TCP processing.


Steve.



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