From: "Michael S. Tsirkin" <mst@redhat.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, "Ira W. Snyder" <iws@ovro.caltech.edu>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH 2/2] vhost_net: a kernel-level virtio server
Date: Thu, 13 Aug 2009 17:41:30 +0300 [thread overview]
Message-ID: <20090813144129.GB5080@redhat.com> (raw)
In-Reply-To: <200908131548.35199.arnd@arndb.de>
On Thu, Aug 13, 2009 at 03:48:35PM +0200, Arnd Bergmann wrote:
> On Thursday 13 August 2009, Arnd Bergmann wrote:
> > Unfortunately, this also implies that you could no longer simply use the
> > packet socket interface as you do currently, as I realized only now.
> > This obviously has a significant impact on your user space interface.
>
> Also, if we do the copy in the transport, it definitely means that we
> can't get to zero-copy RX/TX from guest space any more. The current
> vhost_net driver doesn't do that yet, but could be extended in the
> same way that I'm hoping to do it for macvtap.
>
> Arnd <><
The best way to do this IMO would be to add zero copy support to raw
sockets, vhost will then get it basically for free.
--
MST
next prev parent reply other threads:[~2009-08-13 14:42 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1249930169.git.mst@redhat.com>
2009-08-10 18:53 ` [PATCH 1/2] export cpu_tlbstate to modules Michael S. Tsirkin
2009-08-10 21:56 ` H. Peter Anvin
2009-08-10 22:06 ` Michael S. Tsirkin
2009-08-10 22:24 ` H. Peter Anvin
2009-08-11 11:19 ` Michael S. Tsirkin
2009-08-10 18:53 ` [PATCH 2/2] vhost_net: a kernel-level virtio server Michael S. Tsirkin
2009-08-10 19:51 ` Arnd Bergmann
2009-08-10 20:10 ` Michael S. Tsirkin
2009-08-10 22:16 ` Arnd Bergmann
2009-08-12 17:03 ` Arnd Bergmann
2009-08-12 17:19 ` Ira W. Snyder
2009-08-12 17:31 ` Michael S. Tsirkin
2009-08-12 17:48 ` Ira W. Snyder
2009-08-13 5:55 ` Michael S. Tsirkin
2009-08-12 17:21 ` Michael S. Tsirkin
2009-08-12 17:59 ` Arnd Bergmann
2009-08-12 19:27 ` Anthony Liguori
2009-08-13 6:31 ` Michael S. Tsirkin
2009-08-13 6:06 ` Michael S. Tsirkin
2009-08-13 13:38 ` Arnd Bergmann
2009-08-13 13:48 ` Arnd Bergmann
2009-08-13 14:41 ` Michael S. Tsirkin [this message]
2009-08-13 14:53 ` Arnd Bergmann
2009-08-13 15:37 ` Avi Kivity
2009-08-20 7:25 ` Rusty Russell
2009-08-13 14:39 ` Michael S. Tsirkin
2009-08-13 14:58 ` Arnd Bergmann
2009-08-13 15:03 ` Michael S. Tsirkin
2009-08-12 19:22 ` Anthony Liguori
2009-08-13 8:45 ` Michael S. Tsirkin
2009-08-13 13:45 ` Arnd Bergmann
2009-08-12 19:58 ` Paul E. McKenney
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