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From: linux_kvm@proinbox.com
To: "Avi Kivity" <avi@redhat.com>, anthony@codemonkey.ws
Subject: Re: [Qemu-devel] Hitting 29 NIC limit (+Intel VT-c)
Date: Thu, 28 Oct 2010 16:52:54 -0400	[thread overview]
Message-ID: <1288299174.5091.1402472133@webmail.messagingengine.com> (raw)
In-Reply-To: <4CB6F275.2060204@redhat.com>

On Thu, 14 Oct 2010 14:07 +0200, "Avi Kivity" <avi@redhat.com> wrote:
>   On 10/14/2010 12:54 AM, Anthony Liguori wrote:
> > On 10/13/2010 05:32 PM, Anjali Kulkarni wrote:

> What's the motivation for such a huge number of interfaces?

Ultimately to bring multiple 10Gb bonds into a Vyatta guest.

---

> BTW, I don't think it's possible to hot-add physical functions.  I 
> believe I know of a card that supports dynamic add of physical functions 
> (pre-dating SR-IOV)

I don't know what you're talking about, but it seems you have a better
handle than I on this VT-c stuff, so perhaps misguidedly I'll direct my
next question to you.

Is additional configuration required to make use of SR-IOV & VTq?
I don't immediateley understand how the queueing knows who is who in the
absense of eth.vlan- or if I need to for that matter.

My hope is that this is something like plug n play as long as kernel,
host & driver versions are >foo, but I haven't yet found documentation
to confirm it.

For the sake of future queries, I've come across these references so
far:

http://download.intel.com/design/network/applnots/321211.pdf
http://www.linux-kvm.org/wiki/images/6/6a/KvmForum2008%24kdf2008_7.pdf
http://www.mail-archive.com/kvm@vger.kernel.org/msg27860.html
http://www.mail-archive.com/kvm@vger.kernel.org/msg22721.html
http://thread.gmane.org/gmane.linux.kernel.mm/38508
http://ark.intel.com/Product.aspx?id=36918

  parent reply	other threads:[~2010-10-28 20:52 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <C8DB7E5F.2FEA4%anjali@juniper.net>
2010-10-13 22:32 ` Hitting 29 NIC limit Anjali Kulkarni
2010-10-13 22:54   ` [Qemu-devel] " Anthony Liguori
2010-10-14 12:07     ` Avi Kivity
2010-10-14 12:10       ` Daniel P. Berrange
2010-10-14 12:57         ` Anthony Liguori
2010-10-18 20:07           ` H. Peter Anvin
2010-10-14 21:42         ` Richard W.M. Jones
2010-10-14 21:57           ` Anthony Liguori
2010-10-14 22:00             ` Anjali Kulkarni
2010-10-14 22:09               ` Anthony Liguori
2010-10-14 22:12                 ` Anjali Kulkarni
2010-10-14 22:17                   ` Anthony Liguori
2010-11-16 17:23                     ` Michael S. Tsirkin
2010-11-16 19:00                       ` Anthony Liguori
2010-10-14 22:08             ` [Qemu-devel] " Richard W.M. Jones
2010-10-14 12:36       ` Markus Armbruster
2010-10-14 12:59         ` Anthony Liguori
2010-10-15  9:11           ` Markus Armbruster
2010-10-15 18:49             ` Passing in additional info to guest OS and e1000 test suite? Anjali Kulkarni
2010-10-15 20:02               ` Anthony Liguori
2010-10-14 12:54       ` [Qemu-devel] Hitting 29 NIC limit Anthony Liguori
2010-10-14 13:23         ` Avi Kivity
2010-10-14 14:11           ` Anthony Liguori
2010-10-14 14:53             ` Avi Kivity
2010-10-28 20:52       ` linux_kvm [this message]
2010-11-16 17:21       ` Michael S. Tsirkin

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