ToR agent ends up allocating lots of labels in MPLS label table for multicast

[Prabhjot Singh Sethi]

ToR agent ends up allocating lots of labels in MPLS label table for multicast due to un-initialised vrouter_max_labels_

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/16352
Submitter: Prabhjot Singh Sethi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/16352
Committed: http://github.org/Juniper/contrail-controller/commit/eb0488b9280871229122e71692c12fe92364fa8f
Submitter: Zuul
Branch: master

commit eb0488b9280871229122e71692c12fe92364fa8f
Author: Prabhjot Singh Sethi <email address hidden>
Date: Tue Jan 19 19:30:48 2016 +0530

Fix uninitialized vrouter params

Issue:
------
uninitialized variable results in bad calculation of number
of MPLS labels for multicast

Fix:
----
initialize vrouter params to 0, handle case if
vrouter_max_labels is lesser than fixed unicast range.

Closes-Bug: 1535735
Change-Id: Id4a7b74f12728e78dcb5b8b24d0848e560ff0138

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/16399
Submitter: Prabhjot Singh Sethi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/16399
Committed: http://github.org/Juniper/contrail-controller/commit/6a4ba2a20182872258c82dfca1d00c3dee53277d
Submitter: Zuul
Branch: R2.20

commit 6a4ba2a20182872258c82dfca1d00c3dee53277d
Author: Prabhjot Singh Sethi <email address hidden>
Date: Tue Jan 19 19:30:48 2016 +0530

Fix uninitialized vrouter params

Issue:
------
uninitialized variable results in bad calculation of number
of MPLS labels for multicast

Fix:
----
initialize vrouter params to 0, handle case if
vrouter_max_labels is lesser than fixed unicast range.

Conflicts:
 src/vnsw/agent/cmn/agent.cc

Closes-Bug: 1535735
Change-Id: Id4a7b74f12728e78dcb5b8b24d0848e560ff0138
(cherry picked from commit eb0488b9280871229122e71692c12fe92364fa8f)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/16686
Submitter: Vinay Vithal Mahuli (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/16686
Committed: http://github.org/Juniper/contrail-controller/commit/156ad0b760f9b532572116d813d7afa695555bea
Submitter: Zuul
Branch: R2.22.x

commit 156ad0b760f9b532572116d813d7afa695555bea
Author: Atul Moghe <email address hidden>
Date: Mon Dec 21 14:29:14 2015 -0800

Cherry pick controller commits from R2.20 to R2.22.x
updating version.info from 2.22 to 2.23 in 2.20 branch
Closes-Bug:#1528370

Change-Id: Ic649422979a926cc5f5b8457c01610b848dc206b

Storage stats daemon fix

Partial-Bug: #1528327
Fixed latency monitor code based on the Ceph 0.94.3 version.
Fixed issues in OSD throughput/IOPs calculation.
Updated code based on the latest Sandesh apis.

Change-Id: I12caf951f84c8b213b1b5ec01371bb68b4c48cb3

Fix contrail-collector back pressure mechanism

contrail-collector DB queue back presssure mechanism was not
working since the DB drop level is initialized to INVALID and
even the water marks levels are INVALID and hence the defer/undefer
callbacks are not called.

Change-Id: Ib28141a69aeed3c4ad6f50abbaed2a285e3e7db2
Partial-Bug: #1528380

Fix Agent crash for flow index tree management

Issue:
------
During a flow index change vrouter-agent triggers a delete
on index tree using new flow handle instead of currently
held flow_handle resulting in flow entry getting associated
to two slots in the flow index tree, which further on flow
entry delete due to aging or eviction never releases the
slot for old flow handle, causing failures for further
insertions in the flow index tree

Fix:
----
Avoid taking flow handle as argument to DeleteByIndex and
use the currently associated flow_handle to remove from tree
Adding assert in DeleteByIndex to catch delete failure
Avoid doing delete from index tree in code paths other than
flow entry index update of flow entry delete.

Add logic for KSync Sock User to Mock vrouter behavior
returning index for an entry if it is already allocated
instead of allocating a new one.

Closes-Bug: 1527425
Change-Id: I10e77fb59650acfdd924a5f1d35d6b8dea03a3f0

Fix discovery dependency issue. Originally made in master branch
via https://review.opencontrail.org/#/c/15749

Change-Id: I5d874de3714074c66fa73bfd7c9119772dc681fd
Partial-Bug: #1530186

Avoid calling get_routing_instances on VN object

Calling get_routing_instances could trigger another read of the VN
if the VN has no routing instance. This is not only inefficient, but
could also cause exception if the VN has disappeared. We can avoid
this by calling getattr.

Change-Id: Ie5500585b9e6c578576276c2c04ec03f32c75112
Partial-Bug: 1528950

Fix Centos 65 agent compilation issues.
Closes-Bug: #1532159

Change-Id: Ia8b77619c80737000d5bd949534c9e0a16967359

Closes-Bug: #1524063, contrail-status is showing contrail-web-ui, even it is not configured, in case of SMLite

Change-Id: I55afc19140b1ce52b3b529a644124705de5ce6a8

Fix a corner case with routing instance delete

Sequence of event that causes the crash
1. Static route config deleted
2. Static Route maanger triggers resolve_trigger_ to re-evaluate static
route config
3. Before the resolve trigger is invoked routing instance is deleted

Resolve trigger calls ProcessStaticRouteConfi...