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Reviewed: https://review.opendev.org/c/openstack/neutron/+/829247
Committed: https://opendev.org/openstack/neutron/commit/4e78aaa694683f812d091a794bd140a7d363dd9b
Submitter: "Zuul (22348)"
Branch: master
commit 4e78aaa694683f812d091a794bd140a7d363dd9b
Author: Balazs Gibizer <balazs.gibizer@xxxxxxxx>
Date: Tue Feb 15 13:56:34 2022 +0100
Update port MAC from binding profile for PFs
Today Nova updates the mac_address of a direct-physical port to reflect
the MAC address of the physical device the port is bound to. But this
can only be done before the port is bound. However during migration Nova
is not able to update the MAC when the port is bound to a different
physical device on the destination host.
This patch extends port binding logic for direct-physical ports to allow
providing the MAC address of the physical device via the binding profile.
If it is provided then Neutron overwrites the value of the mac_address
field of the port with the value from the active binding profile.
Also when the port is being unbound or the MAC address is removed from
the active binding porfile then neutron resets the mac_address field of
port to a generated MAC to avoid duplicated MAC issues when another port
is being bound to the same physical device.
The shim API extension for this change is being proposed in
I54b4c85ffc4856fba7ad5e9e29f77f74815e1275 in neutron-lib.
Depends-On: https://review.opendev.org/c/openstack/neutron-lib/+/831935
Closes-Bug: #1942329
Change-Id: Ib0638f5db69cb92daf6932890cb89e83cf84f295
** Changed in: neutron
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1942329
Title:
MAC address of direct-physical port is not updated during migration
Status in neutron:
Fix Released
Status in OpenStack Compute (nova):
In Progress
Bug description:
Description
===========
Nova update the MAC of the direct-physical port based on the MAC of the PF selected during the initial boot of the VM. But Nova does not update the MAC when the VM is migrated to another compute and therefore using another PF.
Steps to reproduce
==================
Needs a multi node devstack with available SRIOV PFs.
stack@master0:~$ openstack hypervisor list
+----+---------------------+-----------------+-----------+-------+
| ID | Hypervisor Hostname | Hypervisor Type | Host IP | State |
+----+---------------------+-----------------+-----------+-------+
| 1 | master0 | QEMU | 10.1.0.21 | up |
| 2 | node0 | QEMU | 10.1.0.22 | up |
+----+---------------------+-----------------+-----------+-------+
stack@master0:~$ mysql -D nova_cell1 -e "select status, address, parent_addr, dev_type, compute_node_id, product_id, instance_uuid from pci_devices;"
+-----------+--------------+--------------+----------+-----------------+------------+---------------+
| status | address | parent_addr | dev_type | compute_node_id | product_id | instance_uuid |
+-----------+--------------+--------------+----------+-----------------+------------+---------------+
| available | 0000:81:00.0 | NULL | type-PF | 1 | 154d | NULL |
| available | 0000:81:00.1 | NULL | type-PF | 1 | 154d | NULL |
| available | 0000:81:10.0 | 0000:81:00.0 | type-VF | 1 | 10ed | NULL |
| available | 0000:81:10.2 | 0000:81:00.0 | type-VF | 1 | 10ed | NULL |
| available | 0000:81:10.4 | 0000:81:00.0 | type-VF | 1 | 10ed | NULL |
| available | 0000:81:10.6 | 0000:81:00.0 | type-VF | 1 | 10ed | NULL |
| available | 0000:81:00.0 | NULL | type-PF | 2 | 154d | NULL |
| available | 0000:81:00.1 | NULL | type-PF | 2 | 154d | NULL |
| available | 0000:81:10.0 | 0000:81:00.0 | type-VF | 2 | 10ed | NULL |
| available | 0000:81:10.2 | 0000:81:00.0 | type-VF | 2 | 10ed | NULL |
| available | 0000:81:10.4 | 0000:81:00.0 | type-VF | 2 | 10ed | NULL |
| available | 0000:81:10.6 | 0000:81:00.0 | type-VF | 2 | 10ed | NULL |
+-----------+--------------+--------------+----------+-----------------+------------+---------------+
These are the PF MAC's
stack@master0:~$ ip a | grep b4:96:91:34
link/ether b4:96:91:34:f4:34 brd ff:ff:ff:ff:ff:ff
link/ether b4:96:91:34:f4:36 brd ff:ff:ff:ff:ff:ff
stack@node0:~/nova$ ip a | grep b4:96:91:34
link/ether b4:96:91:34:ed:d4 brd ff:ff:ff:ff:ff:ff
link/ether b4:96:91:34:ed:d6 brd ff:ff:ff:ff:ff:ff
1) create a port with vnic_type=directy-physical
stack@master0:~$ openstack port show port-direct-physical
+-------------------------+---------------------------------------------------------------------------+
| Field | Value |
+-------------------------+---------------------------------------------------------------------------+
| admin_state_up | UP |
| allowed_address_pairs | |
| binding_host_id | |
| binding_profile | physical_network='physnet0' |
| binding_vif_details | |
| binding_vif_type | unbound |
| binding_vnic_type | direct-physical |
| created_at | 2021-08-19T12:02:06Z |
| data_plane_status | None |
| description | |
| device_id | |
| device_owner | |
| device_profile | None |
| dns_assignment | None |
| dns_domain | None |
| dns_name | None |
| extra_dhcp_opts | |
| fixed_ips | ip_address='10.0.4.227', subnet_id='a3960124-77c3-4127-8a91-9ae99ed552ea' |
| id | 864ee6f2-2e72-47b6-9917-6b8e931afc3e |
| ip_allocation | None |
| mac_address | fa:16:3e:71:fe:26 |
| name | port-direct-physical |
| network_id | 96d669e1-0c1e-474e-aad6-57cd9e026980 |
| numa_affinity_policy | None |
| port_security_enabled | True |
| project_id | 493cf4fe555d4ea0b50bdd46a8edf5c2 |
| propagate_uplink_status | None |
| qos_network_policy_id | None |
| qos_policy_id | None |
| resource_request | None |
| revision_number | 10 |
| security_group_ids | 16150c45-2217-4e73-8e4d-ca946cbc21cc |
| status | DOWN |
| tags | |
| trunk_details | None |
| updated_at | 2021-09-01T13:12:42Z |
+-------------------------+---------------------------------------------------------------------------+
2) boot a VM with that port
stack@master0:~$ openstack --os-compute-api-version 2.80 server create
--image cirros-0.5.2-x86_64-disk --flavor c1 --nic port-id=port-
direct-physical vm1 --wait
+-------------------------------------+-----------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-SRV-ATTR:host | node0 |
| OS-EXT-SRV-ATTR:hostname | vm1 |
| OS-EXT-SRV-ATTR:hypervisor_hostname | node0 |
| OS-EXT-SRV-ATTR:instance_name | instance-000000ff |
| OS-EXT-SRV-ATTR:kernel_id | |
| OS-EXT-SRV-ATTR:launch_index | 0 |
| OS-EXT-SRV-ATTR:ramdisk_id | |
| OS-EXT-SRV-ATTR:reservation_id | r-ou2kcw3c |
| OS-EXT-SRV-ATTR:root_device_name | /dev/vda |
| OS-EXT-SRV-ATTR:user_data | None |
| OS-EXT-STS:power_state | Running |
| OS-EXT-STS:task_state | None |
| OS-EXT-STS:vm_state | active |
| OS-SRV-USG:launched_at | 2021-09-01T13:23:26.000000 |
| OS-SRV-USG:terminated_at | None |
| accessIPv4 | |
| accessIPv6 | |
| addresses | net0=10.0.4.227 |
| adminPass | B5Zje4m3vbq6 |
| config_drive | |
| created | 2021-09-01T13:23:23Z |
| description | None |
| flavor | disk='1', ephemeral='0', extra_specs.hw_rng:allowed='True', original_name='cirros256', ram='256', swap='0', vcpus='1' |
| hostId | 512757d0f0cb65d56c6cabcc54b317bbc1c73dbbe8eb603d9452bc59 |
| host_status | UP |
| id | 4707526d-6980-4af7-9476-d85e3f6aec4f |
| image | cirros-0.5.2-x86_64-disk (1193639c-3c6a-4d3c-9c66-ce1ab741a9d3) |
| key_name | None |
| locked | False |
| locked_reason | None |
| name | vm1 |
| progress | 0 |
| project_id | 493cf4fe555d4ea0b50bdd46a8edf5c2 |
| properties | |
| security_groups | name='default' |
| server_groups | [] |
| status | ACTIVE |
| tags | |
| trusted_image_certificates | None |
| updated | 2021-09-01T13:23:26Z |
| user_id | e08f3a84c1484d6ebdde1faf24fd0373 |
| volumes_attached | |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------------------+
3) Observer the the VM is booted on node0 and check that the MAC of
the port is updated to the mac of one of the PF on node0
stack@master0:~$ openstack port show port-direct-physical | grep mac
| mac_address | b4:96:91:34:ed:d6 |
4) Cold migrate the VM
stack@master0:~$ openstack server migrate vm1
stack@master0:~$ openstack server migration confirm vm1
5) Observe that the VM is now running on master0 but MAC of the port
is not changed
stack@master0:~$ openstack server show vm1 | grep hypervisor
| OS-EXT-SRV-ATTR:hypervisor_hostname | master0 |
stack@master0:~$ openstack port show port-direct-physical | grep mac
| mac_address | b4:96:91:34:ed:d6 |
Expected behavior
=================
The MAC of the neutron port is updated according the the MAC of the PF
on master0
Environment
===========
multinode devstack on recent master (nova on 033af94179)
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