From: "Michael S. Tsirkin" <mst@redhat.com>
To: si-wei liu <si-wei.liu@oracle.com>
Cc: Roman Kagan <rkagan@virtuozzo.com>,
Venu Busireddy <venu.busireddy@oracle.com>,
Marcel Apfelbaum <marcel@redhat.com>,
virtio-dev@lists.oasis-open.org, qemu-devel@nongnu.org,
sridhar.samudrala@intel.com, alexander.h.duyck@intel.com,
netdev@vger.kernel.org
Subject: Re: [Qemu-devel] [PATCH v3 0/3] Use of unique identifier for pairing virtio and passthrough devices...
Date: Tue, 10 Jul 2018 04:58:13 +0300 [thread overview]
Message-ID: <20180710045614-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <9136094e-a510-4201-7c71-d1c49226fa5f@oracle.com>
On Mon, Jul 09, 2018 at 06:11:53PM -0700, si-wei liu wrote:
> What do we buy
> for using a random address during initial discovery and requiring VF to
> complete the handshake?
I don't see advantages to using a random address that is then
changed either: changing a MAC causes network downtime for most users.
> Less network downtime during datapath switching?
> Sorry but that's not a key factor at all for our main goal - live migration.
Isn't avoiding downtime what makes the migration "live"?
If you don't care about it at all just remove the device
and migrate without all these tricks.
--
MST
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: si-wei liu <si-wei.liu@oracle.com>
Cc: Roman Kagan <rkagan@virtuozzo.com>,
Venu Busireddy <venu.busireddy@oracle.com>,
Marcel Apfelbaum <marcel@redhat.com>,
virtio-dev@lists.oasis-open.org, qemu-devel@nongnu.org,
sridhar.samudrala@intel.com, alexander.h.duyck@intel.com,
netdev@vger.kernel.org
Subject: [virtio-dev] Re: [Qemu-devel] [PATCH v3 0/3] Use of unique identifier for pairing virtio and passthrough devices...
Date: Tue, 10 Jul 2018 04:58:13 +0300 [thread overview]
Message-ID: <20180710045614-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <9136094e-a510-4201-7c71-d1c49226fa5f@oracle.com>
On Mon, Jul 09, 2018 at 06:11:53PM -0700, si-wei liu wrote:
> What do we buy
> for using a random address during initial discovery and requiring VF to
> complete the handshake?
I don't see advantages to using a random address that is then
changed either: changing a MAC causes network downtime for most users.
> Less network downtime during datapath switching?
> Sorry but that's not a key factor at all for our main goal - live migration.
Isn't avoiding downtime what makes the migration "live"?
If you don't care about it at all just remove the device
and migrate without all these tricks.
--
MST
---------------------------------------------------------------------
To unsubscribe, e-mail: virtio-dev-unsubscribe@lists.oasis-open.org
For additional commands, e-mail: virtio-dev-help@lists.oasis-open.org
next prev parent reply other threads:[~2018-07-10 1:58 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-29 22:19 [Qemu-devel] [PATCH v3 0/3] Use of unique identifier for pairing virtio and passthrough devices Venu Busireddy
2018-06-29 22:19 ` [virtio-dev] " Venu Busireddy
2018-06-29 22:19 ` [Qemu-devel] [PATCH v3 1/3] Add "Group Identifier" support to virtio devices Venu Busireddy
2018-06-29 22:19 ` [virtio-dev] " Venu Busireddy
2018-06-29 22:19 ` [Qemu-devel] [PATCH v3 2/3] Add "Group Identifier" support to Red Hat PCI bridge Venu Busireddy
2018-06-29 22:19 ` [virtio-dev] " Venu Busireddy
2018-07-03 3:13 ` [Qemu-devel] " Siwei Liu
2018-07-03 3:13 ` Siwei Liu
2018-06-29 22:19 ` [Qemu-devel] [PATCH v3 3/3] Add "Group Identifier" support to Red Hat PCI Express bridge Venu Busireddy
2018-06-29 22:19 ` [virtio-dev] " Venu Busireddy
2018-07-07 12:14 ` [Qemu-devel] " Marcel Apfelbaum
2018-07-07 12:14 ` Marcel Apfelbaum
2018-07-31 15:58 ` [Qemu-devel] " Venu Busireddy
2018-07-31 15:58 ` Venu Busireddy
2018-07-31 16:03 ` [Qemu-devel] " Michael S. Tsirkin
2018-07-31 16:03 ` Michael S. Tsirkin
2018-07-31 19:11 ` [Qemu-devel] " Marcel Apfelbaum
2018-07-31 19:11 ` Marcel Apfelbaum
2018-06-29 22:19 ` [Qemu-devel] [PATCH v3 virtio 1/1] Add "Group Identifier" to virtio PCI capabilities Venu Busireddy
2018-06-29 22:19 ` [virtio-dev] " Venu Busireddy
2018-07-02 16:14 ` [Qemu-devel] [PATCH v3 0/3] Use of unique identifier for pairing virtio and passthrough devices Roman Kagan
2018-07-02 21:14 ` si-wei liu
2018-07-02 21:14 ` [virtio-dev] " si-wei liu
2018-07-03 9:58 ` Roman Kagan
2018-07-03 14:28 ` Venu Busireddy
2018-07-03 14:28 ` [virtio-dev] " Venu Busireddy
2018-07-03 14:52 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-03 14:52 ` [virtio-dev] Re: [Qemu-devel] " Cornelia Huck
2018-07-03 23:31 ` [Qemu-devel] [virtio-dev] " Siwei Liu
2018-07-03 23:31 ` [virtio-dev] Re: [Qemu-devel] " Siwei Liu
2018-07-04 12:15 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-04 12:15 ` [virtio-dev] Re: [Qemu-devel] " Cornelia Huck
2018-07-06 0:49 ` [Qemu-devel] [virtio-dev] " Siwei Liu
2018-07-06 0:49 ` [virtio-dev] Re: [Qemu-devel] " Siwei Liu
2018-07-06 13:54 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-06 13:54 ` [virtio-dev] Re: [Qemu-devel] " Cornelia Huck
2018-07-06 15:07 ` [Qemu-devel] [virtio-dev] " Michael S. Tsirkin
2018-07-06 15:07 ` [virtio-dev] Re: [Qemu-devel] " Michael S. Tsirkin
2018-07-09 16:20 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-09 16:20 ` [virtio-dev] Re: [Qemu-devel] " Cornelia Huck
2018-07-06 23:37 ` [Qemu-devel] [virtio-dev] " Siwei Liu
2018-07-06 23:37 ` [virtio-dev] Re: [Qemu-devel] " Siwei Liu
2018-07-09 16:27 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-09 16:27 ` [virtio-dev] Re: [Qemu-devel] " Cornelia Huck
2018-07-09 13:14 ` [Qemu-devel] [virtio-dev] " Roman Kagan
2018-07-09 13:14 ` [virtio-dev] Re: [Qemu-devel] " Roman Kagan
2018-07-09 16:10 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-09 16:10 ` [virtio-dev] Re: [Qemu-devel] " Cornelia Huck
2018-07-03 15:34 ` Roman Kagan
2018-07-03 22:27 ` si-wei liu
2018-07-03 22:27 ` [virtio-dev] " si-wei liu
2018-07-09 13:00 ` Roman Kagan
2018-07-09 18:35 ` Michael S. Tsirkin
2018-07-09 18:35 ` [virtio-dev] " Michael S. Tsirkin
2018-07-10 1:11 ` si-wei liu
2018-07-10 1:11 ` [virtio-dev] " si-wei liu
2018-07-10 1:54 ` Michael S. Tsirkin
2018-07-10 1:54 ` [virtio-dev] " Michael S. Tsirkin
2018-07-11 0:07 ` Siwei Liu
2018-07-11 0:07 ` [virtio-dev] " Siwei Liu
2018-07-11 0:07 ` [Qemu-devel] [virtio-dev] " Siwei Liu
2018-07-11 9:53 ` Re: [Qemu-devel] " Cornelia Huck
2018-07-11 9:53 ` [virtio-dev] " Cornelia Huck
2018-07-11 9:53 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-12 9:37 ` Re: [Qemu-devel] " Siwei Liu
2018-07-12 9:37 ` [virtio-dev] " Siwei Liu
2018-07-12 9:37 ` [Qemu-devel] [virtio-dev] " Siwei Liu
2018-07-12 11:31 ` Re: [Qemu-devel] " Cornelia Huck
2018-07-12 11:31 ` [virtio-dev] " Cornelia Huck
2018-07-12 11:31 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-12 20:52 ` Re: [Qemu-devel] " Siwei Liu
2018-07-12 20:52 ` [virtio-dev] " Siwei Liu
2018-07-12 20:52 ` [Qemu-devel] [virtio-dev] " Siwei Liu
2018-07-12 21:00 ` Re: [Qemu-devel] " Michael S. Tsirkin
2018-07-12 21:00 ` [virtio-dev] " Michael S. Tsirkin
2018-07-12 21:00 ` [Qemu-devel] [virtio-dev] " Michael S. Tsirkin
2018-07-12 22:19 ` Re: [Qemu-devel] " Siwei Liu
2018-07-12 22:19 ` [virtio-dev] " Siwei Liu
2018-07-12 22:19 ` [Qemu-devel] [virtio-dev] " Siwei Liu
2018-07-13 1:20 ` Re: [Qemu-devel] " Samudrala, Sridhar
2018-07-13 1:20 ` [virtio-dev] " Samudrala, Sridhar
2018-07-13 1:20 ` [Qemu-devel] [virtio-dev] " Samudrala, Sridhar
2018-07-13 3:28 ` Re: [Qemu-devel] " Michael S. Tsirkin
2018-07-13 3:28 ` [virtio-dev] " Michael S. Tsirkin
2018-07-13 3:28 ` [Qemu-devel] [virtio-dev] " Michael S. Tsirkin
2018-07-13 9:15 ` Re: [Qemu-devel] " Cornelia Huck
2018-07-13 9:15 ` [virtio-dev] " Cornelia Huck
2018-07-13 9:15 ` [Qemu-devel] [virtio-dev] " Cornelia Huck
2018-07-12 19:18 ` Re: [Qemu-devel] " Michael S. Tsirkin
2018-07-12 19:18 ` [virtio-dev] " Michael S. Tsirkin
2018-07-12 19:18 ` [Qemu-devel] [virtio-dev] " Michael S. Tsirkin
2018-07-10 1:58 ` Michael S. Tsirkin [this message]
2018-07-10 1:58 ` [virtio-dev] Re: [Qemu-devel] " Michael S. Tsirkin
2018-07-10 18:56 ` Siwei Liu
2018-07-10 18:56 ` [virtio-dev] " Siwei Liu
2018-07-10 18:56 ` [Qemu-devel] [virtio-dev] " Siwei Liu
2018-07-10 2:05 ` [Qemu-devel] " Michael S. Tsirkin
2018-07-10 2:05 ` [virtio-dev] " Michael S. Tsirkin
2018-07-04 5:43 ` Michael S. Tsirkin
2018-07-04 5:43 ` [virtio-dev] " Michael S. Tsirkin
2018-07-10 2:11 ` Michael S. Tsirkin
2018-07-10 2:11 ` [virtio-dev] " Michael S. Tsirkin
2018-07-10 14:28 ` [Qemu-devel] " Venu Busireddy
2018-07-10 14:28 ` [virtio-dev] " Venu Busireddy
2018-07-12 21:01 ` [Qemu-devel] " Michael S. Tsirkin
2018-07-12 21:01 ` [virtio-dev] " Michael S. Tsirkin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180710045614-mutt-send-email-mst@kernel.org \
--to=mst@redhat.com \
--cc=alexander.h.duyck@intel.com \
--cc=marcel@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=qemu-devel@nongnu.org \
--cc=rkagan@virtuozzo.com \
--cc=si-wei.liu@oracle.com \
--cc=sridhar.samudrala@intel.com \
--cc=venu.busireddy@oracle.com \
--cc=virtio-dev@lists.oasis-open.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.