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Re: [PATCH V3 00/10] vhost-vDPA multiqueue
From: |
Jason Wang |
Subject: |
Re: [PATCH V3 00/10] vhost-vDPA multiqueue |
Date: |
Fri, 10 Sep 2021 09:46:41 +0800 |
On Thu, Sep 9, 2021 at 11:40 PM Zhang, Chen <chen.zhang@intel.com> wrote:
>
>
>
> > -----Original Message-----
> > From: Qemu-devel <qemu-devel-
> > bounces+chen.zhang=intel.com@nongnu.org> On Behalf Of Jason Wang
> > Sent: Tuesday, September 7, 2021 5:03 PM
> > To: mst@redhat.com; jasowang@redhat.com; qemu-devel@nongnu.org
> > Cc: eperezma@redhat.com; elic@nvidia.com; gdawar@xilinx.com; Zhu,
> > Lingshan <lingshan.zhu@intel.com>; lulu@redhat.com
> > Subject: [PATCH V3 00/10] vhost-vDPA multiqueue
> >
> > Hi All:
> >
> > This patch implements the multiqueue support for vhost-vDPA. The most
> > important requirement si the control virtqueue support. The virtio-net and
>
> Typo:
> S/si/is
Will fix (it there's a respin).
Thanks
>
>
> > vhost-net core are tweak to support control virtqueue as if what data queue
> > pairs are done: a dedicated vhost_net device which is coupled with the
> > NetClientState is intrdouced so most of the existing vhost codes could be
> > reused with minor changes. This means the control virtqueue will bypass the
> > Qemu. With the control virtqueue, vhost-vDPA are extend to support
> > creating and destroying multiqueue queue pairs plus the control virtqueue.
> >
> > For the future, if we want to support live migration, we can either do
> > shadow
> > cvq on top or introduce new interfaces for reporting device states.
> >
> > Tests are done via the vp_vdpa driver in L1 guest.
> >
> > Changes since V2:
> >
> > - rebase to qemu master
> > - use "queue_pairs" instead of "qps"
> > - typo fixes
> >
> > Changes since V1:
> >
> > - start and stop vhost devices when all queues were setup
> > - fix the case when driver doesn't support MQ but device support
> > - correctly set the batching capability to avoid a map/unmap storm
> > - various other tweaks
> >
> > Jason Wang (10):
> > vhost-vdpa: open device fd in net_init_vhost_vdpa()
> > vhost-vdpa: classify one time request
> > vhost-vdpa: prepare for the multiqueue support
> > vhost-vdpa: let net_vhost_vdpa_init() returns NetClientState *
> > net: introduce control client
> > vhost-net: control virtqueue support
> > virtio-net: use "queue_pairs" instead of "queues" when possible
> > vhost: record the last virtqueue index for the virtio device
> > virtio-net: vhost control virtqueue support
> > vhost-vdpa: multiqueue support
> >
> > hw/net/vhost_net.c | 55 ++++++++---
> > hw/net/virtio-net.c | 165 ++++++++++++++++++---------------
> > hw/virtio/vhost-vdpa.c | 56 +++++++++--
> > include/hw/virtio/vhost-vdpa.h | 1 +
> > include/hw/virtio/vhost.h | 2 +
> > include/hw/virtio/virtio-net.h | 5 +-
> > include/net/net.h | 5 +
> > include/net/vhost_net.h | 6 +-
> > net/net.c | 24 ++++-
> > net/vhost-vdpa.c | 127 ++++++++++++++++++++++---
> > 10 files changed, 328 insertions(+), 118 deletions(-)
> >
> > --
> > 2.25.1
> >
>
- Re: [PATCH V3 04/10] vhost-vdpa: let net_vhost_vdpa_init() returns NetClientState *, (continued)
- [PATCH V3 05/10] net: introduce control client, Jason Wang, 2021/09/07
- [PATCH V3 06/10] vhost-net: control virtqueue support, Jason Wang, 2021/09/07
- [PATCH V3 07/10] virtio-net: use "queue_pairs" instead of "queues" when possible, Jason Wang, 2021/09/07
- [PATCH V3 08/10] vhost: record the last virtqueue index for the virtio device, Jason Wang, 2021/09/07
- [PATCH V3 09/10] virtio-net: vhost control virtqueue support, Jason Wang, 2021/09/07
- [PATCH V3 10/10] vhost-vdpa: multiqueue support, Jason Wang, 2021/09/07
- RE: [PATCH V3 00/10] vhost-vDPA multiqueue, Zhang, Chen, 2021/09/09
- Re: [PATCH V3 00/10] vhost-vDPA multiqueue,
Jason Wang <=
- Re: [PATCH V3 00/10] vhost-vDPA multiqueue, Jason Wang, 2021/09/29