Thanks Jason!

So I can use my virtio-net guest driver and test with this patch?
Please provide the script you use to start MQ guest.

Regards,

- KK

Jason Wang [off-list ref] wrote on 04/20/2011 02:03:07 PM:

Jason Wang [off-list ref]
04/20/2011 02:03 PM

To

Krishna Kumar2/India/IBM@IBMIN, kvm@vger.kernel.org, mst@redhat.com,
netdev@vger.kernel.org, rusty@rustcorp.com.au, qemu-
devel@nongnu.org, anthony@codemonkey.ws

cc

Subject

[RFC PATCH 0/2] Multiqueue support for qemu(virtio-net)

Inspired by Krishna's patch

(http://www.spinics.net/lists/kvm/msg52098.html

) and
Michael's suggestions.  The following series adds the multiqueue support

for

qemu and enable it for virtio-net (both userspace and vhost).

The aim for this series is to simplified the management and achieve the

same

performacne with less codes.

Follows are the differences between this series and Krishna's:

- Add the multiqueue support for qemu and also for userspace virtio-net
- Instead of hacking the vhost module to manipulate kthreads, this patch

just

implement the userspace based multiqueues and thus can re-use the
existed vhost kernel-side codes without any modification.
- Use 1:1 mapping between TX/RX pairs and vhost kthread because the
implementation is based on usersapce.
- The cli is also changed to make the mgmt easier, the -netdev option of

qdev

can now accpet more than one ids. You can start a multiqueue virtio-net

device

through:
./qemu-system-x86_64 -netdev tap,id=hn0,vhost=on,fd=X -netdev
tap,id=hn0,vhost=on,fd=Y -device

virtio-net-pci,netdev=hn0#hn1,queues=2 ...

The series is very primitive and still need polished.

Suggestions are welcomed.
---

Jason Wang (2):
      net: Add multiqueue support
      virtio-net: add multiqueue support


 hw/qdev-properties.c |   37 ++++-
 hw/qdev.h            |    3
 hw/vhost.c           |   26 ++-
 hw/vhost.h           |    1
 hw/vhost_net.c       |    7 +
 hw/vhost_net.h       |    2
 hw/virtio-net.c      |  409 +++++++++++++++++++++++++++++++
+------------------
 hw/virtio-net.h      |    2
 hw/virtio-pci.c      |    1
 hw/virtio.h          |    1
 net.c                |   34 +++-
 net.h                |   15 +-
 12 files changed, 353 insertions(+), 185 deletions(-)

--
Jason Wang