[Rdma-developers] Re: [openib-general] OpenIB and OpenRDMA: Convergence on common RDMA APIs and ULPs for Linux

[Caitlin Bestler]

> -----Original Message-----
> From: rdma-developers-admin at lists.sourceforge.net 
> [mailto:rdma-developers-admin at lists.sourceforge.net] On 
> Behalf Of Grant Grundler
> Sent: Friday, May 27, 2005 9:29 AM
> To: Michael Krause
> Cc: Sukanta ganguly; rdma-developers at lists.sourceforge.net; 
> openib-general at openib.org
> Subject: Re: [Rdma-developers] Re: [openib-general] OpenIB 
> and OpenRDMA: Convergence on common RDMA APIs and ULPs for Linux
> 
> On Fri, May 27, 2005 at 07:24:44AM -0700, Michael Krause wrote:
> ...
> > Again, Sockets is an application API and not how one 
> communicates to a 
> > TOE or RDMA component.
> 
> Mike,
> What address family is used to open a socket over iWARP? AF_INET?
> Or something else?
> 
> I understand most of what you wrote but am still missing one bit:
> How is the RNIC told what the peer IP is it should communicate with?
> 

The TCP Connection is already established before the RNIC takes
control of the connection. Therefore the entire TCP state is already
established (source/dest IP Address/Port, negotiated options, EMSS,
local options, etc.).