Re: [PATCH] Add support for the midonet virtualport type

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On 02/16/2015 08:46 PM, Antoni Segura Puimedon wrote:
> From: Antoni Segura Puimedon <toni@xxxxxxxxxxxx>
>
> Midonet is an opensource virtual networking that over lays the IP
> network between hypervisors. Currently, such networks can be made
> with the openvswitch virtualport type. With this patch, one will
> be able to setup such configurations by binding vNICs to Midonet
> overlay ports.
>
> Signed-off-by: Antoni Segura Puimedon <toni@xxxxxxxxxxxx>
> ---
>  configure.ac                         |  4 ++
>  docs/schemas/networkcommon.rng       | 12 +++++
>  src/Makefile.am                      |  1 +
>  src/conf/domain_conf.h               |  1 +
>  src/conf/netdev_vport_profile_conf.c |  3 +-
>  src/libvirt_private.syms             |  5 ++
>  src/qemu/qemu_hotplug.c              | 25 +++++++---
>  src/qemu/qemu_process.c              | 13 +++--
>  src/util/virnetdevmidonet.c          | 97 ++++++++++++++++++++++++++++++++++++
>  src/util/virnetdevmidonet.h          | 37 ++++++++++++++
>  src/util/virnetdevtap.c              | 11 ++--
>  src/util/virnetdevvportprofile.c     |  1 +
>  src/util/virnetdevvportprofile.h     |  5 +-
>  13 files changed, 197 insertions(+), 18 deletions(-)
>  create mode 100644 src/util/virnetdevmidonet.c
>  create mode 100644 src/util/virnetdevmidonet.h

I haven't checked the rest for completeness yet, but thought I'd point
out in advance that you need to also document the new type in
formatdomain.html.in.

Also, I don't see any changes here to the network configuration to
support a network of this type. That can be a second step though. (A
very useful thing - it would allow migration of a guest from a host
using a standard Linux host bridge to a host using this new network
connection type, for example).

You may also need to go through the hypervisor drivers other than qemu
and put in explicit checks for your new virtualport type and log an
UNSUPPORTED message if it's encountered.

Another thing - for awhile now everyone has been putting the
config/doc/schema changes in one patch, the utility functions in a
second, and the glue that ties them together in qemu/lxc/etc in a third.
That can make it easier to review, test, and also in the case that some
other new feature might use the same utility functions it makes it
easier to backport one feature without needing to backport the other.
etc etc.


I'll go through the code that that's here in the morning.


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