From: Michael S. Tsirkin <mst@redhat.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [Qemu-devel] [RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC
Date: Thu, 22 Oct 2015 15:32:52 +0300 [thread overview]
Message-ID: <20151022123252.GA19940@redhat.com> (raw)
In-Reply-To: <1445455227.4059.867.camel@redhat.com>
On Wed, Oct 21, 2015 at 01:20:27PM -0600, Alex Williamson wrote:
> The trouble here is that the VF needs to be unplugged prior to the start
> of migration because we can't do effective dirty page tracking while the
> device is connected and doing DMA.
That's exactly what patch 12/12 is trying to accomplish.
I do see some problems with it, but I also suggested some solutions.
--
MST
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: Or Gerlitz <gerlitz.or@gmail.com>,
emil.s.tantilov@intel.com, kvm@vger.kernel.org,
linux-pci@vger.kernel.org, qemu-devel@nongnu.org,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
carolyn.wyborny@intel.com, "Skidmore,
Donald C" <donald.c.skidmore@intel.com>,
agraf@suse.de, matthew.vick@intel.com,
intel-wired-lan@lists.osuosl.org,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
yang.z.zhang@intel.com,
Mitch Williams <mitch.a.williams@intel.com>,
nrupal.jani@intel.com, bhelgaas@google.com,
Lan Tianyu <tianyu.lan@intel.com>,
Linux Netdev List <netdev@vger.kernel.org>,
Shannon Nelson <shannon.nelson@intel.com>,
eddie.dong@intel.com, Linux Kernel <linux-kernel@vger.kernel.org>,
john.ronciak@intel.com, Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] [RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC
Date: Thu, 22 Oct 2015 15:32:52 +0300 [thread overview]
Message-ID: <20151022123252.GA19940@redhat.com> (raw)
In-Reply-To: <1445455227.4059.867.camel@redhat.com>
On Wed, Oct 21, 2015 at 01:20:27PM -0600, Alex Williamson wrote:
> The trouble here is that the VF needs to be unplugged prior to the start
> of migration because we can't do effective dirty page tracking while the
> device is connected and doing DMA.
That's exactly what patch 12/12 is trying to accomplish.
I do see some problems with it, but I also suggested some solutions.
--
MST
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: emil.s.tantilov@intel.com, kvm@vger.kernel.org,
linux-pci@vger.kernel.org, qemu-devel@nongnu.org,
Jesse Brandeburg <jesse.brandeburg@intel.com>,
carolyn.wyborny@intel.com, "Skidmore,
Donald C" <donald.c.skidmore@intel.com>,
agraf@suse.de, matthew.vick@intel.com,
intel-wired-lan@lists.osuosl.org,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
yang.z.zhang@intel.com, Or Gerlitz <gerlitz.or@gmail.com>,
Mitch Williams <mitch.a.williams@intel.com>,
nrupal.jani@intel.com, bhelgaas@google.com,
Lan Tianyu <tianyu.lan@intel.com>,
Linux Netdev List <netdev@vger.kernel.org>,
Shannon Nelson <shannon.nelson@intel.com>,
eddie.dong@intel.com, Linux Kernel <linux-kernel@vger.kernel.org>,
john.ronciak@intel.com, Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] [RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC
Date: Thu, 22 Oct 2015 15:32:52 +0300 [thread overview]
Message-ID: <20151022123252.GA19940@redhat.com> (raw)
In-Reply-To: <1445455227.4059.867.camel@redhat.com>
On Wed, Oct 21, 2015 at 01:20:27PM -0600, Alex Williamson wrote:
> The trouble here is that the VF needs to be unplugged prior to the start
> of migration because we can't do effective dirty page tracking while the
> device is connected and doing DMA.
That's exactly what patch 12/12 is trying to accomplish.
I do see some problems with it, but I also suggested some solutions.
--
MST
next prev parent reply other threads:[~2015-10-22 12:32 UTC|newest]
Thread overview: 171+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-21 16:37 [Intel-wired-lan] [RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 01/12] PCI: Add virtfn_index for struct pci_device Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 18:07 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 18:07 ` [Qemu-devel] " Alexander Duyck
2015-10-21 18:07 ` Alexander Duyck
2015-10-24 14:46 ` [Intel-wired-lan] " Lan, Tianyu
2015-10-24 14:46 ` [Qemu-devel] " Lan, Tianyu
2015-10-24 14:46 ` Lan, Tianyu
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 02/12] IXGBE: Add new mail box event to restore VF status in the PF driver Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 20:34 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 20:34 ` [Qemu-devel] " Alexander Duyck
2015-10-21 20:34 ` Alexander Duyck
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 03/12] IXGBE: Add sysfs interface for Qemu to migrate " Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 20:45 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 20:45 ` [Qemu-devel] " Alexander Duyck
2015-10-21 20:45 ` Alexander Duyck
2015-10-25 7:21 ` [Intel-wired-lan] " Lan, Tianyu
2015-10-25 7:21 ` [Qemu-devel] " Lan, Tianyu
2015-10-25 7:21 ` Lan, Tianyu
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 04/12] IXGBE: Add ixgbe_ping_vf() to notify a specified VF via mailbox msg Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 05/12] IXGBE: Add new sysfs interface of "notify_vf" Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 20:52 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 20:52 ` [Qemu-devel] " Alexander Duyck
2015-10-21 20:52 ` Alexander Duyck
2015-10-22 12:51 ` [Intel-wired-lan] [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:51 ` Michael S. Tsirkin
2015-10-22 12:51 ` Michael S. Tsirkin
2015-10-22 12:51 ` [Qemu-devel] " Michael S. Tsirkin
2015-10-24 15:43 ` [Intel-wired-lan] " Lan, Tianyu
2015-10-24 15:43 ` [Qemu-devel] " Lan, Tianyu
2015-10-24 15:43 ` Lan, Tianyu
2015-10-25 6:03 ` [Intel-wired-lan] " Alexander Duyck
2015-10-25 6:03 ` [Qemu-devel] " Alexander Duyck
2015-10-25 6:03 ` Alexander Duyck
2015-10-25 6:45 ` [Intel-wired-lan] " Lan, Tianyu
2015-10-25 6:45 ` [Qemu-devel] " Lan, Tianyu
2015-10-25 6:45 ` Lan, Tianyu
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 06/12] IXGBEVF: Add self emulation layer Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 20:58 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 20:58 ` [Qemu-devel] " Alexander Duyck
2015-10-21 20:58 ` Alexander Duyck
2015-10-22 12:50 ` [Intel-wired-lan] [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:50 ` Michael S. Tsirkin
2015-10-22 12:50 ` Michael S. Tsirkin
2015-10-22 15:50 ` [Intel-wired-lan] " Alexander Duyck
2015-10-22 15:50 ` Alexander Duyck
2015-10-22 15:50 ` Alexander Duyck
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 07/12] IXGBEVF: Add new mail box event for migration Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 08/12] IXGBEVF: Rework code of finding the end transmit desc of package Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 21:14 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 21:14 ` [Qemu-devel] " Alexander Duyck
2015-10-21 21:14 ` Alexander Duyck
2015-10-24 16:12 ` [Intel-wired-lan] " Lan, Tianyu
2015-10-24 16:12 ` [Qemu-devel] " Lan, Tianyu
2015-10-24 16:12 ` Lan, Tianyu
2015-10-22 12:58 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-10-22 12:58 ` [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:58 ` Michael S. Tsirkin
2015-10-24 16:08 ` [Intel-wired-lan] " Lan, Tianyu
2015-10-24 16:08 ` [Qemu-devel] " Lan, Tianyu
2015-10-24 16:08 ` Lan, Tianyu
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 09/12] IXGBEVF: Add live migration support for VF driver Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 21:48 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 21:48 ` [Qemu-devel] " Alexander Duyck
2015-10-21 21:48 ` Alexander Duyck
2015-10-22 12:46 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-10-22 12:46 ` [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:46 ` Michael S. Tsirkin
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 10/12] IXGBEVF: Add lock to protect tx/rx ring operation Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-21 21:55 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 21:55 ` [Qemu-devel] " Alexander Duyck
2015-10-21 21:55 ` Alexander Duyck
2015-10-22 12:40 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-10-22 12:40 ` [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:40 ` Michael S. Tsirkin
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 11/12] IXGBEVF: Migrate VF statistic data Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-22 12:36 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-10-22 12:36 ` [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:36 ` Michael S. Tsirkin
2015-10-22 12:36 ` Michael S. Tsirkin
2015-10-21 16:37 ` [Intel-wired-lan] [RFC Patch 12/12] IXGBEVF: Track dma dirty pages Lan Tianyu
2015-10-21 16:37 ` [Qemu-devel] " Lan Tianyu
2015-10-21 16:37 ` Lan Tianyu
2015-10-22 12:30 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-10-22 12:30 ` [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:30 ` Michael S. Tsirkin
2015-10-21 18:45 ` [Intel-wired-lan] [RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC Or Gerlitz
2015-10-21 18:45 ` [Qemu-devel] " Or Gerlitz
2015-10-21 18:45 ` Or Gerlitz
2015-10-21 19:20 ` [Intel-wired-lan] " Alex Williamson
2015-10-21 19:20 ` [Qemu-devel] " Alex Williamson
2015-10-21 19:20 ` Alex Williamson
2015-10-21 23:26 ` [Intel-wired-lan] " Alexander Duyck
2015-10-21 23:26 ` [Qemu-devel] " Alexander Duyck
2015-10-21 23:26 ` Alexander Duyck
2015-10-22 12:32 ` Michael S. Tsirkin [this message]
2015-10-22 12:32 ` [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:32 ` Michael S. Tsirkin
2015-10-22 13:01 ` [Intel-wired-lan] " Alex Williamson
2015-10-22 13:01 ` Alex Williamson
2015-10-22 13:01 ` Alex Williamson
2015-10-22 13:06 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-10-22 13:06 ` Michael S. Tsirkin
2015-10-22 13:06 ` Michael S. Tsirkin
2015-10-22 15:58 ` [Intel-wired-lan] " Or Gerlitz
2015-10-22 15:58 ` [Qemu-devel] " Or Gerlitz
2015-10-22 15:58 ` Or Gerlitz
2015-10-22 16:17 ` [Intel-wired-lan] " Alex Williamson
2015-10-22 16:17 ` [Qemu-devel] " Alex Williamson
2015-10-22 16:17 ` Alex Williamson
2015-10-22 12:55 ` [Intel-wired-lan] [Qemu-devel] " Michael S. Tsirkin
2015-10-22 12:55 ` Michael S. Tsirkin
2015-10-22 12:55 ` Michael S. Tsirkin
2015-10-23 18:36 ` [Intel-wired-lan] " Alexander Duyck
2015-10-23 18:36 ` [Qemu-devel] " Alexander Duyck
2015-10-23 18:36 ` Alexander Duyck
2015-10-23 19:05 ` [Intel-wired-lan] " Alex Williamson
2015-10-23 19:05 ` [Qemu-devel] " Alex Williamson
2015-10-23 19:05 ` Alex Williamson
2015-10-23 19:05 ` Alex Williamson
2015-10-23 20:01 ` [Intel-wired-lan] " Alexander Duyck
2015-10-23 20:01 ` [Qemu-devel] " Alexander Duyck
2015-10-23 20:01 ` Alexander Duyck
2015-10-26 5:36 ` [Intel-wired-lan] " Lan Tianyu
2015-10-26 5:36 ` [Qemu-devel] " Lan Tianyu
2015-10-26 5:36 ` Lan Tianyu
2015-10-26 15:03 ` [Intel-wired-lan] " Alexander Duyck
2015-10-26 15:03 ` [Qemu-devel] " Alexander Duyck
2015-10-26 15:03 ` Alexander Duyck
2015-10-29 6:12 ` [Intel-wired-lan] " Lan Tianyu
2015-10-29 6:12 ` [Qemu-devel] " Lan Tianyu
2015-10-29 6:12 ` Lan Tianyu
2015-10-29 6:58 ` [Intel-wired-lan] " Alexander Duyck
2015-10-29 6:58 ` [Qemu-devel] " Alexander Duyck
2015-10-29 6:58 ` Alexander Duyck
2015-10-29 8:33 ` [Intel-wired-lan] " Lan Tianyu
2015-10-29 8:33 ` [Qemu-devel] " Lan Tianyu
2015-10-29 8:33 ` Lan Tianyu
2015-10-29 16:17 ` [Intel-wired-lan] " Alexander Duyck
2015-10-29 16:17 ` [Qemu-devel] " Alexander Duyck
2015-10-29 16:17 ` Alexander Duyck
2015-10-30 2:41 ` [Intel-wired-lan] " Lan Tianyu
2015-10-30 2:41 ` [Qemu-devel] " Lan Tianyu
2015-10-30 2:41 ` Lan Tianyu
2015-10-30 18:04 ` [Intel-wired-lan] " Alexander Duyck
2015-10-30 18:04 ` [Qemu-devel] " Alexander Duyck
2015-10-30 18:04 ` Alexander Duyck
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=20151022123252.GA19940@redhat.com \
--to=mst@redhat.com \
--cc=intel-wired-lan@osuosl.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.