From: "David S. Miller" <davem@davemloft.net>
To: rusty@rustcorp.com.au
Cc: caitlinb@broadcom.com, johnpol@2ka.mipt.ru, kelly@au1.ibm.com,
netdev@vger.kernel.org
Subject: Re: [PATCH 1/3] Rough VJ Channel Implementation - vj_core.patch
Date: Fri, 28 Apr 2006 23:46:55 -0700 (PDT) [thread overview]
Message-ID: <20060428.234655.22652563.davem@davemloft.net> (raw)
In-Reply-To: <1146270160.8029.78.camel@localhost.localdomain>
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Sat, 29 Apr 2006 10:22:40 +1000
> You're thinking the card would place the packet in the mmap'ed buffer,
> but the protocol handling would still be done (on that user-accessible
> buffer) in kernelspace?
Exactly.
> I hadn't considered that. Are the userspace-kernel interactions here
> are a lesser problem than telling userspace "you want direct access to
> the packets? Great, *you* handle the whole thing".
I've very much weary of putting a second TCP stack in userspace
for the same reasons most folks are weary of TOE.
And frankly we should only go towards that kind of duplication if it
shows a real performance gain.
Nevertheless I do highly encourage folks to experiment with that
as much as possible, I could be dead wrong on my hunch that it
won't help enough to justify allowing it.
next prev parent reply other threads:[~2006-04-29 6:48 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-28 17:55 [PATCH 1/3] Rough VJ Channel Implementation - vj_core.patch Caitlin Bestler
2006-04-28 22:17 ` Rusty Russell
2006-04-28 22:40 ` David S. Miller
2006-04-29 0:22 ` Rusty Russell
2006-04-29 6:46 ` David S. Miller [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-04-28 23:45 Caitlin Bestler
2006-04-28 17:02 Caitlin Bestler
2006-04-28 17:18 ` Stephen Hemminger
2006-04-28 17:29 ` Evgeniy Polyakov
2006-04-28 17:41 ` Stephen Hemminger
2006-04-28 17:55 ` Evgeniy Polyakov
2006-04-28 19:16 ` David S. Miller
2006-04-28 19:49 ` Stephen Hemminger
2006-04-28 19:59 ` Evgeniy Polyakov
2006-04-28 22:00 ` David S. Miller
2006-04-29 13:54 ` Evgeniy Polyakov
[not found] ` <20060429124451.GA19810@2ka.mipt.ru>
2006-05-01 21:32 ` David S. Miller
2006-05-02 7:08 ` Evgeniy Polyakov
2006-04-28 19:52 ` Evgeniy Polyakov
2006-04-28 19:10 ` David S. Miller
2006-04-28 20:46 ` Brent Cook
2006-04-28 17:25 ` Evgeniy Polyakov
2006-04-28 19:14 ` David S. Miller
2006-04-28 15:59 Caitlin Bestler
2006-04-28 16:12 ` Evgeniy Polyakov
2006-04-28 19:09 ` David S. Miller
2006-04-27 21:12 Caitlin Bestler
2006-04-28 6:10 ` Evgeniy Polyakov
2006-04-28 7:20 ` David S. Miller
2006-04-28 7:32 ` Evgeniy Polyakov
2006-04-28 18:20 ` David S. Miller
2006-04-28 8:24 ` Rusty Russell
2006-04-28 19:21 ` David S. Miller
2006-04-28 22:04 ` Rusty Russell
2006-04-28 22:38 ` David S. Miller
2006-04-29 0:10 ` Rusty Russell
2006-04-27 1:02 Caitlin Bestler
2006-04-27 6:08 ` David S. Miller
2006-04-27 6:17 ` Andi Kleen
2006-04-27 6:27 ` David S. Miller
2006-04-27 6:41 ` Andi Kleen
2006-04-27 7:52 ` David S. Miller
2006-04-26 22:53 Caitlin Bestler
2006-04-26 22:59 ` David S. Miller
2006-04-26 20:20 Caitlin Bestler
2006-04-26 22:35 ` David S. Miller
2006-04-26 19:30 Caitlin Bestler
2006-04-26 19:46 ` Jeff Garzik
2006-04-26 22:40 ` David S. Miller
2006-04-27 3:40 ` Rusty Russell
2006-04-27 4:58 ` James Morris
2006-04-27 6:16 ` David S. Miller
2006-04-27 6:17 ` David S. Miller
2006-04-26 16:57 Caitlin Bestler
2006-04-26 19:23 ` David S. Miller
2006-04-26 11:47 Kelly Daly
2006-04-26 7:33 ` David S. Miller
2006-04-27 3:31 ` Kelly Daly
2006-04-27 6:25 ` David S. Miller
2006-04-27 11:51 ` Evgeniy Polyakov
2006-04-27 20:09 ` David S. Miller
2006-04-28 6:05 ` Evgeniy Polyakov
2006-05-04 2:59 ` Kelly Daly
2006-05-04 23:22 ` David S. Miller
2006-05-05 1:31 ` Rusty Russell
2006-04-26 7:59 ` David S. Miller
2006-05-04 7:28 ` Kelly Daly
2006-05-04 23:11 ` David S. Miller
2006-05-05 2:48 ` Kelly Daly
2006-05-16 1:02 ` Kelly Daly
2006-05-16 1:05 ` David S. Miller
2006-05-16 1:15 ` Kelly Daly
2006-05-16 5:16 ` David S. Miller
2006-06-22 2:05 ` Kelly Daly
2006-06-22 3:58 ` James Morris
2006-06-22 4:31 ` Arnaldo Carvalho de Melo
2006-06-22 4:36 ` YOSHIFUJI Hideaki / 吉藤英明
2006-07-08 0:05 ` David Miller
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