From: "Lan, Tianyu" <tianyu.lan@intel.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: a.motakis@virtualopensystems.com, alex.williamson@redhat.com,
b.reynal@virtualopensystems.com, bhelgaas@google.com,
carolyn.wyborny@intel.com, donald.c.skidmore@intel.com,
eddie.dong@intel.com, nrupal.jani@intel.com, agraf@suse.de,
kvm@vger.kernel.org, pbonzini@redhat.com, qemu-devel@nongnu.org,
emil.s.tantilov@intel.com, gerlitz.or@gmail.com,
mark.d.rustad@intel.com, eric.auger@linaro.org,
intel-wired-lan@lists.osuosl.org, jeffrey.t.kirsher@intel.com,
jesse.brandeburg@intel.com, john.ronciak@intel.com,
linux-api@vger.kernel.org, linux-kernel@vger.kernel.org,
matthew.vick@intel.com, mitch.a.williams@intel.com,
netdev@vger.kernel.org, shannon.nelson@intel.com,
weiyang@linux.vnet.ibm.com, zajec5@gmail.com
Subject: Re: [RFC PATCH V2 3/3] Ixgbevf: Add migration support for ixgbevf driver
Date: Thu, 26 Nov 2015 00:02:33 +0800 [thread overview]
Message-ID: <5655DB99.3040007@intel.com> (raw)
In-Reply-To: <20151125142437-mutt-send-email-mst@redhat.com>
On 11/25/2015 8:28 PM, Michael S. Tsirkin wrote:
> Frankly, I don't really see what this short term hack buys us,
> and if it goes in, we'll have to maintain it forever.
>
The framework of how to notify VF about migration status won't be
changed regardless of stopping VF or not before doing migration.
We hope to reach agreement on this first. Tracking dirty memory still
need to more discussions and we will continue working on it. Stop VF may
help to work around the issue and make tracking easier.
> Also, assuming you just want to do ifdown/ifup for some reason, it's
> easy enough to do using a guest agent, in a completely generic way.
>
Just ifdown/ifup is not enough for migration. It needs to restore some
PCI settings before doing ifup on the target machine
WARNING: multiple messages have this Message-ID (diff)
From: "Lan, Tianyu" <tianyu.lan@intel.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: weiyang@linux.vnet.ibm.com, emil.s.tantilov@intel.com,
kvm@vger.kernel.org, qemu-devel@nongnu.org,
jesse.brandeburg@intel.com, mark.d.rustad@intel.com,
carolyn.wyborny@intel.com, eric.auger@linaro.org,
donald.c.skidmore@intel.com, zajec5@gmail.com, agraf@suse.de,
matthew.vick@intel.com, intel-wired-lan@lists.osuosl.org,
jeffrey.t.kirsher@intel.com, gerlitz.or@gmail.com,
mitch.a.williams@intel.com, nrupal.jani@intel.com,
bhelgaas@google.com, a.motakis@virtualopensystems.com,
b.reynal@virtualopensystems.com, linux-api@vger.kernel.org,
shannon.nelson@intel.com, eddie.dong@intel.com,
alex.williamson@redhat.com, linux-kernel@vger.kernel.org,
john.ronciak@intel.com, netdev@vger.kernel.org,
pbonzini@redhat.com
Subject: Re: [Qemu-devel] [RFC PATCH V2 3/3] Ixgbevf: Add migration support for ixgbevf driver
Date: Thu, 26 Nov 2015 00:02:33 +0800 [thread overview]
Message-ID: <5655DB99.3040007@intel.com> (raw)
In-Reply-To: <20151125142437-mutt-send-email-mst@redhat.com>
On 11/25/2015 8:28 PM, Michael S. Tsirkin wrote:
> Frankly, I don't really see what this short term hack buys us,
> and if it goes in, we'll have to maintain it forever.
>
The framework of how to notify VF about migration status won't be
changed regardless of stopping VF or not before doing migration.
We hope to reach agreement on this first. Tracking dirty memory still
need to more discussions and we will continue working on it. Stop VF may
help to work around the issue and make tracking easier.
> Also, assuming you just want to do ifdown/ifup for some reason, it's
> easy enough to do using a guest agent, in a completely generic way.
>
Just ifdown/ifup is not enough for migration. It needs to restore some
PCI settings before doing ifup on the target machine
WARNING: multiple messages have this Message-ID (diff)
From: "Lan, Tianyu" <tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: "Michael S. Tsirkin" <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org,
alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
b.reynal-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org,
bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
carolyn.wyborny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
donald.c.skidmore-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
eddie.dong-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
nrupal.jani-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
agraf-l3A5Bk7waGM@public.gmane.org,
kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
qemu-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org,
emil.s.tantilov-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
gerlitz.or-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
mark.d.rustad-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
eric.auger-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
intel-wired-lan-qjLDD68F18P21nG7glBr7A@public.gmane.org,
jeffrey.t.kirsher-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
jesse.brandeburg-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
john.ronciak-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
matthew.vick-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
mitch.a.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
shannon.nelson-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
weiyang-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org,
zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Subject: Re: [RFC PATCH V2 3/3] Ixgbevf: Add migration support for ixgbevf driver
Date: Thu, 26 Nov 2015 00:02:33 +0800 [thread overview]
Message-ID: <5655DB99.3040007@intel.com> (raw)
In-Reply-To: <20151125142437-mutt-send-email-mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On 11/25/2015 8:28 PM, Michael S. Tsirkin wrote:
> Frankly, I don't really see what this short term hack buys us,
> and if it goes in, we'll have to maintain it forever.
>
The framework of how to notify VF about migration status won't be
changed regardless of stopping VF or not before doing migration.
We hope to reach agreement on this first. Tracking dirty memory still
need to more discussions and we will continue working on it. Stop VF may
help to work around the issue and make tracking easier.
> Also, assuming you just want to do ifdown/ifup for some reason, it's
> easy enough to do using a guest agent, in a completely generic way.
>
Just ifdown/ifup is not enough for migration. It needs to restore some
PCI settings before doing ifup on the target machine
WARNING: multiple messages have this Message-ID (diff)
From: Lan, Tianyu <tianyu.lan@intel.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [RFC PATCH V2 3/3] Ixgbevf: Add migration support for ixgbevf driver
Date: Thu, 26 Nov 2015 00:02:33 +0800 [thread overview]
Message-ID: <5655DB99.3040007@intel.com> (raw)
In-Reply-To: <20151125142437-mutt-send-email-mst@redhat.com>
On 11/25/2015 8:28 PM, Michael S. Tsirkin wrote:
> Frankly, I don't really see what this short term hack buys us,
> and if it goes in, we'll have to maintain it forever.
>
The framework of how to notify VF about migration status won't be
changed regardless of stopping VF or not before doing migration.
We hope to reach agreement on this first. Tracking dirty memory still
need to more discussions and we will continue working on it. Stop VF may
help to work around the issue and make tracking easier.
> Also, assuming you just want to do ifdown/ifup for some reason, it's
> easy enough to do using a guest agent, in a completely generic way.
>
Just ifdown/ifup is not enough for migration. It needs to restore some
PCI settings before doing ifup on the target machine
next prev parent reply other threads:[~2015-11-25 16:02 UTC|newest]
Thread overview: 173+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-24 13:38 [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for SRIOV NIC Lan Tianyu
2015-11-24 13:38 ` [Intel-wired-lan] " Lan Tianyu
2015-11-24 13:38 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:38 ` [RFC PATCH V2 1/3] VFIO: Add new ioctl cmd VFIO_GET_PCI_CAP_INFO Lan Tianyu
2015-11-24 13:38 ` [Intel-wired-lan] " Lan Tianyu
2015-11-24 13:38 ` Lan Tianyu
2015-11-24 13:38 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:38 ` [RFC PATCH V2 2/3] PCI: Add macros for faked PCI migration capability Lan Tianyu
2015-11-24 13:38 ` [Intel-wired-lan] " Lan Tianyu
2015-11-24 13:38 ` Lan Tianyu
2015-11-24 13:38 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:38 ` [RFC PATCH V2 3/3] Ixgbevf: Add migration support for ixgbevf driver Lan Tianyu
2015-11-24 13:38 ` [Intel-wired-lan] " Lan Tianyu
2015-11-24 13:38 ` [Qemu-devel] " Lan Tianyu
2015-11-24 21:20 ` Michael S. Tsirkin
2015-11-24 21:20 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-11-24 21:20 ` [Qemu-devel] " Michael S. Tsirkin
2015-11-25 5:39 ` Alexander Duyck
2015-11-25 5:39 ` [Intel-wired-lan] " Alexander Duyck
2015-11-25 5:39 ` Alexander Duyck
2015-11-25 5:39 ` Alexander Duyck
2015-11-25 5:39 ` [Qemu-devel] " Alexander Duyck
2015-11-25 5:39 ` Lan Tianyu
2015-11-25 5:39 ` [Intel-wired-lan] " Lan Tianyu
2015-11-25 5:39 ` Lan Tianyu
2015-11-25 5:39 ` [Qemu-devel] " Lan Tianyu
2015-11-25 12:28 ` Michael S. Tsirkin
2015-11-25 12:28 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-11-25 12:28 ` Michael S. Tsirkin
2015-11-25 12:28 ` [Qemu-devel] " Michael S. Tsirkin
2015-11-25 16:02 ` Lan, Tianyu [this message]
2015-11-25 16:02 ` [Intel-wired-lan] " Lan, Tianyu
2015-11-25 16:02 ` Lan, Tianyu
2015-11-25 16:02 ` [Qemu-devel] " Lan, Tianyu
2015-11-25 16:22 ` Michael S. Tsirkin
2015-11-25 16:22 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-11-25 16:22 ` [Qemu-devel] " Michael S. Tsirkin
2015-11-25 16:24 ` Alexander Duyck
2015-11-25 16:24 ` [Intel-wired-lan] " Alexander Duyck
2015-11-25 16:24 ` Alexander Duyck
2015-11-25 16:24 ` Alexander Duyck
2015-11-25 16:24 ` [Qemu-devel] " Alexander Duyck
2015-11-25 16:39 ` Michael S. Tsirkin
2015-11-25 16:39 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-11-25 16:39 ` Michael S. Tsirkin
2015-11-25 16:39 ` Michael S. Tsirkin
2015-11-25 16:39 ` [Qemu-devel] " Michael S. Tsirkin
2015-11-25 17:24 ` Alexander Duyck
2015-11-25 17:24 ` [Intel-wired-lan] " Alexander Duyck
2015-11-25 17:24 ` Alexander Duyck
2015-11-25 17:24 ` Alexander Duyck
2015-11-25 17:24 ` [Qemu-devel] " Alexander Duyck
2015-11-24 14:20 ` [RFC PATCH V2 0/3] IXGBE/VFIO: Add live migration support for SRIOV NIC Alexander Duyck
2015-11-24 14:20 ` [Intel-wired-lan] " Alexander Duyck
2015-11-24 14:20 ` [Qemu-devel] " Alexander Duyck
2015-11-25 3:18 ` Lan Tianyu
2015-11-25 3:18 ` [Intel-wired-lan] " Lan Tianyu
2015-11-25 3:18 ` Lan Tianyu
2015-11-25 3:18 ` [Qemu-devel] " Lan Tianyu
2015-11-25 5:30 ` Alexander Duyck
2015-11-25 5:30 ` [Intel-wired-lan] " Alexander Duyck
2015-11-25 5:30 ` Alexander Duyck
2015-11-25 5:30 ` Alexander Duyck
2015-11-25 5:30 ` [Qemu-devel] " Alexander Duyck
2015-11-25 8:21 ` Lan Tianyu
2015-11-25 8:21 ` [Intel-wired-lan] " Lan Tianyu
2015-11-25 8:21 ` Lan Tianyu
2015-11-25 8:21 ` Lan Tianyu
2015-11-25 8:21 ` [Qemu-devel] " Lan Tianyu
2015-11-25 15:32 ` Alexander Duyck
2015-11-25 15:32 ` [Intel-wired-lan] " Alexander Duyck
2015-11-25 15:32 ` Alexander Duyck
2015-11-25 15:32 ` Alexander Duyck
2015-11-25 15:32 ` [Qemu-devel] " Alexander Duyck
2015-11-26 3:15 ` Dong, Eddie
2015-11-26 3:15 ` [Intel-wired-lan] " Dong, Eddie
2015-11-26 3:15 ` Dong, Eddie
2015-11-26 3:15 ` Dong, Eddie
2015-11-26 3:15 ` [Qemu-devel] " Dong, Eddie
2015-11-26 3:56 ` Alexander Duyck
2015-11-26 3:56 ` [Intel-wired-lan] " Alexander Duyck
2015-11-26 3:56 ` Alexander Duyck
2015-11-26 3:56 ` Alexander Duyck
2015-11-26 3:56 ` [Qemu-devel] " Alexander Duyck
2015-11-30 6:53 ` Lan, Tianyu
2015-11-30 6:53 ` [Intel-wired-lan] " Lan, Tianyu
2015-11-30 6:53 ` Lan, Tianyu
2015-11-30 6:53 ` Lan, Tianyu
2015-11-30 6:53 ` [Qemu-devel] " Lan, Tianyu
2015-11-30 16:07 ` Alexander Duyck
2015-11-30 16:07 ` [Intel-wired-lan] " Alexander Duyck
2015-11-30 16:07 ` Alexander Duyck
2015-11-30 16:07 ` [Qemu-devel] " Alexander Duyck
2015-12-01 15:04 ` Lan, Tianyu
2015-12-01 15:04 ` [Intel-wired-lan] " Lan, Tianyu
2015-12-01 15:04 ` Lan, Tianyu
2015-12-01 15:04 ` [Qemu-devel] " Lan, Tianyu
2015-12-01 15:28 ` Michael S. Tsirkin
2015-12-01 15:28 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-12-01 15:28 ` Michael S. Tsirkin
2015-12-01 15:28 ` Michael S. Tsirkin
2015-12-01 15:28 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-01 17:04 ` Alexander Duyck
2015-12-01 17:04 ` [Intel-wired-lan] " Alexander Duyck
2015-12-01 17:04 ` Alexander Duyck
2015-12-01 17:04 ` [Qemu-devel] " Alexander Duyck
2015-12-01 17:37 ` Michael S. Tsirkin
2015-12-01 17:37 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-12-01 17:37 ` Michael S. Tsirkin
2015-12-01 17:37 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-01 18:36 ` Alexander Duyck
2015-12-01 18:36 ` [Intel-wired-lan] " Alexander Duyck
2015-12-01 18:36 ` Alexander Duyck
2015-12-01 18:36 ` [Qemu-devel] " Alexander Duyck
2015-12-02 11:44 ` Michael S. Tsirkin
2015-12-02 11:44 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-12-02 11:44 ` Michael S. Tsirkin
2015-12-02 11:44 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-04 16:32 ` Lan, Tianyu
2015-12-04 16:32 ` [Intel-wired-lan] " Lan, Tianyu
2015-12-04 16:32 ` Lan, Tianyu
2015-12-04 16:32 ` Lan, Tianyu
2015-12-04 16:32 ` [Qemu-devel] " Lan, Tianyu
2015-12-04 17:07 ` Alexander Duyck
2015-12-04 17:07 ` [Intel-wired-lan] " Alexander Duyck
2015-12-04 17:07 ` Alexander Duyck
2015-12-04 17:07 ` Alexander Duyck
2015-12-04 17:07 ` [Qemu-devel] " Alexander Duyck
2015-12-07 15:40 ` Lan, Tianyu
2015-12-07 15:40 ` [Intel-wired-lan] " Lan, Tianyu
2015-12-07 15:40 ` Lan, Tianyu
2015-12-07 15:40 ` Lan, Tianyu
2015-12-07 15:40 ` [Qemu-devel] " Lan, Tianyu
2015-12-07 17:12 ` Alexander Duyck
2015-12-07 17:12 ` [Intel-wired-lan] " Alexander Duyck
2015-12-07 17:12 ` Alexander Duyck
2015-12-07 17:12 ` [Qemu-devel] " Alexander Duyck
2015-12-07 17:39 ` Michael S. Tsirkin
2015-12-07 17:39 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-12-07 17:39 ` Michael S. Tsirkin
2015-12-07 17:39 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-07 18:42 ` Alexander Duyck
2015-12-07 18:42 ` [Intel-wired-lan] " Alexander Duyck
2015-12-07 18:42 ` Alexander Duyck
2015-12-07 18:42 ` [Qemu-devel] " Alexander Duyck
2015-12-09 9:28 ` Lan, Tianyu
2015-12-09 9:28 ` [Intel-wired-lan] " Lan, Tianyu
2015-12-09 9:28 ` Lan, Tianyu
2015-12-09 9:28 ` [Qemu-devel] " Lan, Tianyu
2015-12-09 16:36 ` Alexander Duyck
2015-12-09 16:36 ` [Intel-wired-lan] " Alexander Duyck
2015-12-09 16:36 ` Alexander Duyck
2015-12-09 16:36 ` [Qemu-devel] " Alexander Duyck
2015-12-09 10:37 ` Michael S. Tsirkin
2015-12-09 10:37 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-12-09 10:37 ` Michael S. Tsirkin
2015-12-09 10:37 ` Michael S. Tsirkin
2015-12-09 10:37 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-09 11:19 ` Lan, Tianyu
2015-12-09 11:19 ` [Intel-wired-lan] " Lan, Tianyu
2015-12-09 11:19 ` Lan, Tianyu
2015-12-09 11:19 ` Lan, Tianyu
2015-12-09 11:19 ` [Qemu-devel] " Lan, Tianyu
2015-12-09 11:28 ` Michael S. Tsirkin
2015-12-09 11:28 ` [Intel-wired-lan] " Michael S. Tsirkin
2015-12-09 11:28 ` Michael S. Tsirkin
2015-12-09 11:28 ` Michael S. Tsirkin
2015-12-09 11:28 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-09 11:41 ` Lan, Tianyu
2015-12-09 11:41 ` [Intel-wired-lan] " Lan, Tianyu
2015-12-09 11:41 ` Lan, Tianyu
2015-12-09 11:41 ` Lan, Tianyu
2015-12-09 11:41 ` [Qemu-devel] " Lan, Tianyu
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