Hi Litao,
I have created datanetwork and assign it to a unaccelerated interface,the interface`s named "bugdata" and uuid is 464dca96-c18b-4850-8999-ba77e0bd6c42;

[sysadmin@controller-0 ~(keystone_admin)]$ system host-if-list controller-0
+--------------------------------------+---------+----------+----------+------+--------------+------+------+-----------------------+----------------+
| uuid                                 | name    | class    | type     | vlan | ports        | uses | used | attributes            | data networks  |
|                                      |         |          |          | id   |              | i/f  | by   |                       |                |
|                                      |         |          |          |      |              |      | i/f  |                       |                |
+--------------------------------------+---------+----------+----------+------+--------------+------+------+-----------------------+----------------+
| 1e3dbf08-e36a-45fd-a5f6-8abb55053a64 | data1   | data     | ethernet | None | [u'eth1001'] | []   | []   | MTU=1500,accelerated= | [u'physnet1']  |
|                                      |         |          |          |      |              |      |      | True                  |                |
|                                      |         |          |          |      |              |      |      |                       |                |
| 464dca96-c18b-4850-8999-ba77e0bd6c42 | bugdata | data     | ethernet | None | [u'enp0s10'] | []   | []   | MTU=1500,accelerated= | [u'bugdevice'] |
|                                      |         |          |          |      |              |      |      | False                 |                |
|                                      |         |          |          |      |              |      |      |                       |                |
| 7165f351-daa7-4d1d-9479-bdbe8a6ca53a | enp0s3  | platform | ethernet | None | [u'enp0s3']  | []   | []   | MTU=1500              | []             |
| 8401ce1a-ea1c-413d-9e36-ceb774f7fe54 | data0   | data     | ethernet | None | [u'eth1000'] | []   | []   | MTU=1500,accelerated= | [u'physnet0']  |
|                                      |         |          |          |      |              |      |      | True                  |                |
|                                      |         |          |          |      |              |      |      |                       |                |
| f4115eee-99b5-474d-9452-488c233d6975 | lo      | platform | virtual  | None | []           | []   | []   | MTU=1500              | []             |
+--------------------------------------+---------+----------+----------+------+--------------+------+------+-----------------------+----------------+

after host unlock, it seems that enp0s10 works well.

[sysadmin@controller-0 ~(keystone_admin)]$ sudo ovs-vsctl show
Password:
7d554c33-3cc2-4c29-b0dd-f305c6ab48f8
    Manager "ptcp:6640:127.0.0.1"
    Bridge "br-phy0"
        Controller "tcp:127.0.0.1:6633"
        fail_mode: secure
        Port "eth1000"
            Interface "eth1000"
        Port "enp0s10"
            Interface "enp0s10"
        Port "phy-br-phy0"
            Interface "phy-br-phy0"
                type: patch
                options: {peer="int-br-phy0"}
        Port "br-phy0"
            Interface "br-phy0"
                type: internal
......
in my environment, there only have one 'docker0' bridge. but in yours, the interface already has been assign to the linux bridge,so it doesn`t works.  can you provide more information about you configuration?(related about you interfaces).

[sysadmin@controller-0 ~(keystone_admin)]$ brctl show
bridge name     bridge id               STP enabled     interfaces
docker0         8000.02426ff9eea8       no