From: Christoph Lameter <cl@gentwo.org>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [CORE TOPIC] Redesign Memory Management layer and more core subsystem
Date: Fri, 13 Jun 2014 17:30:31 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.11.1406131729300.25334@gentwo.org> (raw)
In-Reply-To: <20140613121846.10c72bed@nehalam.linuxnetplumber.net>
On Fri, 13 Jun 2014, Stephen Hemminger wrote:
> > But again I want both. A general stack that allows at least the data path
> > to go direct to the device. The metadata and connection management etc
> > should be firmly in the hand of the kernel.
>
> There are several dataplane user mode networking implementations that
> do this. The problem is you either have to overlap with every networking
> driver (netmap) or do driver in userspace (DPDK).
The netmap stuff requires a system call for any sending and receiving so
that does not work right. The driver is userspace does the device control
etc etc in user space as well which means the kernel does not police the
device.
next prev parent reply other threads:[~2014-06-13 22:30 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-11 19:03 Christoph Lameter
2014-06-11 19:26 ` Daniel Phillips
2014-06-11 19:45 ` Greg KH
2014-06-12 13:35 ` John W. Linville
2014-06-13 16:57 ` Christoph Lameter
2014-06-13 17:31 ` Greg KH
2014-06-13 17:59 ` Christoph Lameter
2014-06-13 19:18 ` Stephen Hemminger
2014-06-13 22:30 ` Christoph Lameter [this message]
2014-06-13 16:56 ` Christoph Lameter
2014-06-13 17:30 ` Greg KH
2014-06-13 17:55 ` James Bottomley
2014-06-13 18:41 ` Christoph Lameter
2014-06-16 11:39 ` Thomas Petazzoni
2014-06-16 14:05 ` Christoph Lameter
2014-06-16 14:09 ` Thomas Petazzoni
2014-06-16 14:28 ` Christoph Lameter
2014-06-13 18:01 ` Christoph Lameter
2014-06-13 18:25 ` Greg KH
2014-06-13 18:54 ` Christoph Lameter
2014-06-11 20:08 ` josh
2014-06-11 20:15 ` Andy Lutomirski
2014-06-11 20:52 ` Dave Hansen
2014-06-12 6:59 ` Phillip Lougher
2014-06-13 17:02 ` Christoph Lameter
2014-06-13 21:36 ` Benjamin Herrenschmidt
2014-06-13 22:23 ` Rik van Riel
2014-06-13 23:04 ` Christoph Lameter
2014-06-14 1:19 ` Phillip Lougher
2014-06-16 14:04 ` Christoph Lameter
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