From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
To: Steve Wise <swise@opengridcomputing.com>
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, 5 Dec 2006 19:31:33 +0300 [thread overview]
Message-ID: <20061205163008.GA30211@2ka.mipt.ru> (raw)
In-Reply-To: <1165335162.16087.79.camel@stevo-desktop>
On Tue, Dec 05, 2006 at 10:12:42AM -0600, Steve Wise (swise@opengridcomputing.com) wrote:
> Ah. Data from an offloaded connection cannot leak into the main stack
> nor vice-verse. We can take an active RDMA connection establishment as
> an example if you want: Once the message is sent to the HW to "setup a
> TCP connection from addr/port a.b to addr/port c.d", then packets on
> that connection (that 4-tuple) will always be delivered to the RDMA
> driver, not the native stack. If the the packet received after the
> connection is setup is -not- an MPA reply (in this example), then the
> connection is aborted. Once the connection is aborted. So no leaking
> can happen.
And if there were a dataflow between addr/port a.b to addr/port c.d
already, it will either terminated?
Considering the following sequence:
handlers->t3c_handlers->sched()->work_queue->work_handlers()->for
example CPL_PASS_ACCEPT_REQ->pass_accept_req() - it just parses incoming
skb and sets port/addr/route and other fields to be used as a base for rdma
connection. What if it just a usual network packet from kernelspace or
userspace with the same payload as should be sent by remote rdma system?
--
Evgeniy Polyakov
next prev parent reply other threads:[~2006-12-05 16:32 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
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 [this message]
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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