Comment 17 for bug 1837232

Reviewed: https://review.opendev.org/677325
Committed: https://git.openstack.org/cgit/starlingx/config/commit/?id=c0ce04ba163649d6e8bad224075d8412af81f163
Submitter: Zuul
Branch: r/stx.2.0

commit c0ce04ba163649d6e8bad224075d8412af81f163
Author: zhangkunpeng <zhang.kunpeng@99cloud.net>
Date: Fri Jul 26 16:34:44 2019 +0800

    Generate configuration option to enable numa-aware-vswitches

    Generate physnets configuration option in neutron group and generate
    neutron physnet configuration groups that specify the mapping of each
     physnet to colocated numa nodes on the host.

    nova.conf for example:
        [neutron]
        physnets = physnet0,physnet1

        [neutron_physnet_physnet0]
        numa_nodes = 0

        [neutron_physnet_physnet1]
        numa_nodes = 0,1

        [neutron_tunneled]
        numa_nodes = 0

    Change-Id: Iaa633fb19b2422cf6f0331f43c7b833200a5c159
    Closes-Bug: 1837232
    Signed-off-by: zhangkunpeng <zhang.kunpeng@99cloud.net>
    (cherry picked from commit 1a923c8474b0e4d7ef78b3444d131682babfe6aa)