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Re: [Xen-devel] [PATCH V8 net-next 0/6] xen-net{back, front}: Multiple transmit and receive queues

On 14/05/14 15:13, Wei Liu wrote:
On Wed, May 14, 2014 at 04:09:23PM +0200, Sander Eikelenboom wrote:

Wednesday, May 14, 2014, 3:52:24 PM, you wrote:

This patch series implements multiple transmit and receive queues (i.e.
multiple shared rings) for the xen virtual network interfaces.

The series is split up as follows:
  - Patch 1 brings the 'grant_copy_op' array back into struct xenvif, in
    preparation for multi-queue support. See the patch itself for more details.
- Patches 2 and 4 factor out the queue-specific data for netback and
   netfront respectively, and modify the rest of the code to use these
   as appropriate.
- Patches 3 and 5 introduce new XenStore keys to negotiate and use
   multiple shared rings and event channels, and code to connect these
   as appropriate.
- Patch 6 documents the XenStore keys required for the new feature
   in include/xen/interface/io/netif.h

All other transmit and receive processing remains unchanged, i.e. there
is a kthread per queue and a NAPI context per queue.

The performance of these patches has been analysed in detail, with
results available at:


Would it be possible to also put these somewhere in a tree (or branch of the
xen-tree), so it is more easy to pull and test ?

I cannot speak for Andrew. FWIW you can save this thread and use 'git
am' to apply them to 'net-next'.


I don't currently have a public-facing git repo for this. If you'd prefer I can send you the patches directly in a tarball, which you may be able to apply more easily than grabbing them from email threads?

- Andrew


Andrew J. Bennieston

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