L3 Agent restart causes network outage

When a L3 agent controlling multiple qrouter namespaces
restarts, it destroys all qrouter namespaces even if
some of them are still in use.  As a result, network
traffic could be stopped on the VMs that use the
networks associated with these namespaces.

So what is needed is for the L3 agent to preserve those
qrouter namespaces a L3 agent instance recognizes and to
destroy those it does not know about.

Closes-Bug: #1175695

Change-Id: Idae77886bd195d773878c3d212ccfd56269216fb
Removes an incorrect and unnecessary return

The current return statement creates a new object that is
not used anywhere and does not provide a functionality

Change-Id: Id53f6fbc8cc6fb38419e5616a352279f1a9b917f
Closes-Bug: #1276367
Don't document non-existing flag '--hide-elapsed'

Closes-Bug: 1277051
Change-Id: I4435645025dabcecf3dc1b7168ce17f10d6df534
Add additional unit tests for the ML2 plugin

This commit adds extended unit test coverage for the ML2 plugin.py file.

Partial-Bug: 1236127

Change-Id: I2f4465c84810965679a585007cd9005ba8a7da71
Fix typo in service_drivers.ipsec

Closes-Bug: #1280597

Change-Id: If2238d66af4db1b0134bbd6407b2229b4af363ee
Add support to request vnic type on port

This patch adds support for requested vnic_type to be plugged to neutron port to ML2 plugin.
This patch contains:
1. New attribute 'binding:vnic_type' added to port binding extension.
   Possible values are 'direct', 'macvtap' and 'normal'.
   'binding:vnic_type' is allowed to be defined on port creation or changed
   on port update by admin or tenant user.
   'binding:vnic_type' can be also skipped in port defintion
2. Management of vnic_type by ML2 plugin, assuming default
vnic_type=normal
3. Add 'vnic_type' to ml2_port_bindings DB table
4. Add supported vnic_types for MechanismDrivers that are capable to bind
port.
5. Add DB migration script for ml2_vnic_type.

DocImpact: Need to update portbindings API docs and include in SR-IOV user docs

Change-Id: Ic88708fa9ece742f807c1d09bb49e499f99bd092
Implements: blueprint ml2-request-vnic-type
Plugins should call __init__ of db_base_plugin for db.configure

Currently each plugin calls db.configure() within the plugin's __init__
class or defines an initialize() method that's sole job is to call this
method. Instead we should just call the super method of a plugin so that
db.configure() is called for us out of the db_base_plugin class.

Note: the only reason why I'm making this change is that I want to add
something to the __init__() class of the db_base_plugin that's needed for
the nova-event-callback blueprint and adding it in the base class of init
looks to be the best place.

Change-Id: Iec3c912735021ceb90f657108aad3a57460d66e7
Closes-bug: #1282303
Rename Router related methods for VMware NSX plugin

This is another step for the renaming/refactoring of
nvplib and related modules. This is about routers.

Partial-implements blueprint: nicira-plugin-renaming

Change-Id: Ic69b2777fa1ae3125b8adf23943360e3fe18e4c2
Rename L2 Switch/Gateway related methods for VMware NSX plugin

Yet another another step for the renaming/refactoring
of nvplib and related modules. This is about l2 switches
and l2 gateways.

Partial-implements blueprint nicira-plugin-renaming

Change-Id: I35c2b20a33ed8f2df4334c335f91472f7b822f8e
Rename Security Groups related methods for VMware NSX plugin

Second to last step for the renaming/refactoring of nvplib
and related modules. This is about security groups.

Partial-implements blueprint nicira-plugin-renaming

Change-Id: I0099bf25be77fdec90d515c890b728a477409ef9
Merge "Add support to request vnic type on port"
Merge "L3 Agent restart causes network outage"
Merge "Add additional unit tests for the ML2 plugin"
Merge "Removes an incorrect and unnecessary return"
Merge "Don't document non-existing flag '--hide-elapsed'"
Merge "Fix typo in service_drivers.ipsec"
Merge "Rename Router related methods for VMware NSX plugin"
Merge "Rename L2 Switch/Gateway related methods for VMware NSX plugin"
Merge "Rename Security Groups related methods for VMware NSX plugin"
Merge "Plugins should call __init__ of db_base_plugin for db.configure"