(cherry picked from commit ffa98f3)

(cherry picked from commit 7a192e5)

The neutron ``basic_overcloud_network`` setup job performs both
undercloud and charm configuration prior to configuring the
overcloud network.  The undercloud and charm configuration steps
are useful outside the context of OpenStack Neutron.

Split undercloud and charm setup into a new configure step.

(cherry picked from commit 7984d78)

The test blindly reverts the ``bridge-interface-mappings``
configuration to an empty string, which would be the wrong thing
to do if it was previously set up by a test configure step.

The test also does not properly populate target_deploy_status and
the test will always wait for the next update status to run,
which may take several minutes, before completing.

(cherry picked from commit 16e0fbb)

(cherry picked from commit c77ac32)

The test will prepare hypervisor units in virtual machines by
enabling hugepages configuration and rebooting them and
subsequent required runtime changes.  If the hypervisor units
are physical machines the test assumes they already have
received the appropriate configuration from the bare metal
provisioning system.

Launch nested instance using flavor that enables hugepages and
attach it directly to the external network and perform
connectivity tests.

After a successful test the hypervisor units are brought back
to their original state to not influence subsequent tests.

(cherry picked from commit f38448f)

Update CPU topology flavor advice.

The example currently listed would create a two socket CPU with
only one NUMA node, which is a invalid configuration which leads
to undefined results.

Instead list two examples one with a single socket for simpler
end to end tests and a two socket two numa node example for more
advanced low level tests.

(cherry picked from commit 899f2b7)

(cherry picked from commit ba0dc02)

(cherry picked from commit ad16b5a)

Allow launching an instance and attaching it directly to the
external provider network.  This is useful in its own right and
is also a requirement in order to successfully test some
configurations.

(cherry picked from commit 3ec6470)

(cherry picked from commit 3f711ff)

We do not yet support DPDK for ovn-dedicated-chassis, therefore, we need
to avoid running DPDK func tests for it.

(cherry picked from commit 268b429)

The previous change

268b429

did not move the rest of the functions required to actually run the
test case.

(cherry picked from commit 787415a)