From: Steve Wise <swise@opengridcomputing.com>
To: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Roland Dreier <rdreier@cisco.com>,
netdev@vger.kernel.org, openib-general@openib.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 04/13] Connection Manager
Date: Tue, 05 Dec 2006 09:02:05 -0600 [thread overview]
Message-ID: <1165330925.16087.13.camel@stevo-desktop> (raw)
In-Reply-To: <20061205050725.GA26033@2ka.mipt.ru>
On Tue, 2006-12-05 at 08:07 +0300, Evgeniy Polyakov wrote:
> On Mon, Dec 04, 2006 at 07:45:52AM -0800, Roland Dreier (rdreier@cisco.com) wrote:
> > > This and a lot of other changes in this driver definitely says you
> > > implement your own stack of protocols on top of infiniband hardware.
> >
> > ...but I do know this driver is for 10-gig ethernet HW.
>
> It is for iwarp/rdma from description.
> If it is 10ge, then why does it parse incomping packet headers and
> implements initial tcp state machine?
>
Its not implementing the TCP state machine at all. Its implementing the
MPA state machine (see the iWARP internet drafts). These packets are
TCP payload. MPA is used to negotiate RDMA mode on a TCP connection.
This entails an exchange of 2 messages on the TCP connection. Once this
is exchanged and both side agree, the connection is bound to an RDMA QP
and the connection moved into RDMA mode. From that point on, all IO is
done via the post_send() and post_recv().
Steve.
next prev parent reply other threads:[~2006-12-05 15:02 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-02 22:49 [PATCH v2 00/13] 2.6.20 Chelsio T3 RDMA Driver Steve Wise
2006-12-02 22:49 ` [PATCH v2 01/13] Linux RDMA Core Changes Steve Wise
2006-12-02 22:49 ` [PATCH v2 02/13] Device Discovery and ULLD Linkage Steve Wise
2006-12-03 16:03 ` Jan Engelhardt
2006-12-02 22:49 ` [PATCH v2 03/13] Provider Methods and Data Structures Steve Wise
2006-12-03 12:07 ` Arjan van de Ven
2006-12-04 16:28 ` Steve Wise
2006-12-04 16:45 ` Roland Dreier
2006-12-04 16:50 ` Steve Wise
2006-12-02 22:49 ` [PATCH v2 04/13] Connection Manager Steve Wise
2006-12-04 11:08 ` Evgeniy Polyakov
2006-12-04 15:45 ` Roland Dreier
2006-12-04 16:20 ` Steve Wise
2006-12-05 5:13 ` Evgeniy Polyakov
2006-12-05 15:07 ` Steve Wise
2006-12-05 10:45 ` Brice Goglin
2006-12-05 16:02 ` Steve Wise
2006-12-05 16:27 ` [openib-general] " Steve Wise
2006-12-05 17:14 ` Roland Dreier
2006-12-05 5:07 ` Evgeniy Polyakov
2006-12-05 5:13 ` Roland Dreier
2006-12-05 5:16 ` Evgeniy Polyakov
2006-12-05 5:27 ` Roland Dreier
2006-12-05 15:14 ` Steve Wise
2006-12-05 15:27 ` Evgeniy Polyakov
2006-12-05 15:46 ` Steve Wise
2006-12-05 15:03 ` Steve Wise
2006-12-05 15:02 ` Steve Wise [this message]
2006-12-05 15:19 ` Evgeniy Polyakov
2006-12-05 15:39 ` Steve Wise
2006-12-05 15:59 ` Evgeniy Polyakov
2006-12-05 16:12 ` Steve Wise
2006-12-05 16:17 ` [openib-general] " Steve Wise
2006-12-05 16:31 ` Evgeniy Polyakov
2006-12-05 16:47 ` Steve Wise
2006-12-05 17:26 ` Evgeniy Polyakov
2006-12-05 17:32 ` Evgeniy Polyakov
2006-12-05 17:51 ` Steve Wise
2006-12-05 18:09 ` Evgeniy Polyakov
2006-12-06 1:27 ` [openib-general] " Michael Krause
2006-12-02 22:50 ` [PATCH v2 05/13] Queue Pairs Steve Wise
2006-12-02 22:50 ` [PATCH v2 06/13] Completion Queues Steve Wise
2006-12-02 22:50 ` [PATCH v2 07/13] Async Event Handler Steve Wise
2006-12-02 22:50 ` [PATCH v2 08/13] Memory Registration Steve Wise
2006-12-02 22:50 ` [PATCH v2 09/13] Core WQE/CQE Types Steve Wise
2006-12-02 22:50 ` [PATCH v2 10/13] Core HAL Steve Wise
2006-12-02 22:51 ` [PATCH v2 11/13] Core Resource Allocation Steve Wise
2006-12-02 22:51 ` [PATCH v2 12/13] Core Debug functions Steve Wise
2006-12-02 22:51 ` [PATCH v2 13/13] Kconfig/Makefile Steve Wise
2006-12-02 23:13 ` [PATCH v2 00/13] 2.6.20 Chelsio T3 RDMA Driver Francois Romieu
2006-12-03 0:24 ` Stephen Hemminger
2006-12-04 16:24 ` Steve Wise
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