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RE: [PATCH V3 00/10] vhost-vDPA multiqueue
From: |
Zhang, Chen |
Subject: |
RE: [PATCH V3 00/10] vhost-vDPA multiqueue |
Date: |
Thu, 9 Sep 2021 15:40:32 +0000 |
> -----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
> 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 <=
- Re: [PATCH V3 00/10] vhost-vDPA multiqueue, Jason Wang, 2021/09/29