BigSwitch ML2 driver uses portbindingsports table

[Kevin Benton]

The Big Switch ML2 driver references the deprecated portbindings_db in the port location tracking code. This needs to be removed because it's resulting in the entire portbinding_db schema for one small function.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/84377

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/84377
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=c70c2719d700902854ef0381cb725722ac2da05e
Submitter: Jenkins
Branch: master

commit c70c2719d700902854ef0381cb725722ac2da05e
Author: Kevin Benton <email address hidden>
Date: Tue Apr 1 01:05:29 2014 -0700

    Stop using portbindings_db in BSN ML2 driver

    Avoids using the portbindings_db in the Big Switch
    ML2 driver since ML2 has deprecated that database for
    its own version that tracks the same information.

    Also eliminates unnecessary 'binding_host' field since
    it is now always the same as as the 'portbinding:host_id'
    field.

    Closes-Bug: #1300628
    Change-Id: I17d47cb446cdd2e989c3e0d01b797a81309faaa7

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/84983

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/84983
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=1997cc97f14b95251ad568820160405e34a39801
Submitter: Jenkins
Branch: master

commit 1997cc97f14b95251ad568820160405e34a39801
Author: Kevin Benton <email address hidden>
Date: Thu Apr 3 10:00:37 2014 +0000

    BigSwitch: Don't import portbindings_db until use

    The Big Switch ML2 driver re-uses large parts of
    code from the Big Switch plugin. However, the plugin
    uses the old portbindings_db in its port tracking
    code. This db is not created/used by ML2, so it does
    not exist when the Big Switch ML2 driver is being used.
    This caused a problem when the portbindings_db module
    would be imported even though it wasn't being used
    since the SQLAlchemy models would create the
    relationships during the import.

    This patch moves the portbindings_db import down to
    the methods that leverage it so it won't be imported
    during use by the ML2 driver.

    This is a temporary solution which can be back-ported
    if disabling auto schema generation is back-ported
    to icehouse. An appropriate fix will require some
    refactoring to avoid the port tracking code from
    being imported for ML2.

    Closes-Bug: #1300628
    Change-Id: I551abf9d6ec832c423cba0d50bb27715b43c0b1c

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: milestone-proposed
Review: https://review.openstack.org/85517

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/85517
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=f367d7422c669fda908b5ef0228cde9dc5717f63
Submitter: Jenkins
Branch: milestone-proposed

commit f367d7422c669fda908b5ef0228cde9dc5717f63
Author: Kevin Benton <email address hidden>
Date: Tue Apr 1 01:05:29 2014 -0700

    Stop using portbindings_db in BSN ML2 driver

    Avoids using the portbindings_db in the Big Switch
    ML2 driver since ML2 has deprecated that database for
    its own version that tracks the same information.

    Also eliminates unnecessary 'binding_host' field since
    it is now always the same as as the 'portbinding:host_id'
    field.

    Closes-Bug: #1300628
    Change-Id: I17d47cb446cdd2e989c3e0d01b797a81309faaa7
    (cherry picked from commit c70c2719d700902854ef0381cb725722ac2da05e)