Bug 1937432
| Summary: | [SRIOV] min BW placement enforcement fails when NIC does not support dataplane enforcement | |||
|---|---|---|---|---|
| Product: | Red Hat OpenStack | Reporter: | Eduardo Olivares <eolivare> | |
| Component: | openstack-neutron | Assignee: | Rodolfo Alonso <ralonsoh> | |
| Status: | CLOSED ERRATA | QA Contact: | Eduardo Olivares <eolivare> | |
| Severity: | high | Docs Contact: | ||
| Priority: | high | |||
| Version: | 16.1 (Train) | CC: | amuller, chrisw, scohen | |
| Target Milestone: | --- | Keywords: | Triaged | |
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | openstack-neutron-15.2.1-1.20210409063435.el8ost | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1970051 (view as bug list) | Environment: | ||
| Last Closed: | 2021-05-26 13:51:50 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Red Hat OpenStack Platform 16.1.6 bug fix and enhancement advisory), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:2097 |
Description of problem: We are testing min BW placement enforcement on a setup with Intel NICs that don't support min BW dataplane enforcement. When the sriov agent's qos extension is enabled, the sriov agent tries to apply QoS dataplane enforcements. Due to this, when a server is created using a direct/VF port that has a qos-policy with a minimum bw rule, the following errors are shown by the sriov agent logs: 2021-03-10 14:52:31.065 111774 DEBUG neutron.plugins.ml2.drivers.mech_sriov.agent.eswitch_manager [req-e3eeb9fe-ed86-450a-85c9-9279a452cb18 - - - - -] Setting 1000 Mbps limit for port 2 set_device_rate /usr/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/mech_sriov/agent/eswitch_manager.py:240 2021-03-10 14:52:31.187 114571 DEBUG oslo.privsep.daemon [-] privsep: Exception during request[140011213354704]: Invalid parameter/value used on interface enp5s0f0, namespace None. _process_cmd /usr/lib/python3.6/site-packages/oslo_privsep/daemon.py:490 Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/neutron/privileged/agent/linux/ip_lib.py", line 299, in _run_iproute_link return ip.link(command, index=idx, **kwargs) File "/usr/lib/python3.6/site-packages/pyroute2/iproute/linux.py", line 1163, in link msg_flags=msg_flags) File "/usr/lib/python3.6/site-packages/pyroute2/netlink/nlsocket.py", line 373, in nlm_request return tuple(self._genlm_request(*argv, **kwarg)) File "/usr/lib/python3.6/site-packages/pyroute2/netlink/nlsocket.py", line 864, in nlm_request callback=callback): File "/usr/lib/python3.6/site-packages/pyroute2/netlink/nlsocket.py", line 376, in get return tuple(self._genlm_get(*argv, **kwarg)) File "/usr/lib/python3.6/site-packages/pyroute2/netlink/nlsocket.py", line 701, in get raise msg['header']['error'] pyroute2.netlink.exceptions.NetlinkError: (22, 'Invalid argument') During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/oslo_privsep/daemon.py", line 485, in _process_cmd ret = func(*f_args, **f_kwargs) File "/usr/lib/python3.6/site-packages/neutron/privileged/agent/linux/ip_lib.py", line 73, in sync_inner return input_func(*args, **kwargs) File "/usr/lib/python3.6/site-packages/oslo_privsep/priv_context.py", line 247, in _wrap return func(*args, **kwargs) File "/usr/lib/python3.6/site-packages/neutron/privileged/agent/linux/ip_lib.py", line 448, in set_link_vf_feature return _run_iproute_link("set", device, namespace=namespace, vf=vf_config) File "/usr/lib/python3.6/site-packages/neutron/privileged/agent/linux/ip_lib.py", line 301, in _run_iproute_link _translate_ip_device_exception(e, device, namespace) File "/usr/lib/python3.6/site-packages/neutron/privileged/agent/linux/ip_lib.py", line 279, in _translate_ip_device_exception raise InvalidArgument(device=device, namespace=namespace) neutron.privileged.agent.linux.ip_lib.InvalidArgument: Invalid parameter/value used on interface enp5s0f0, namespace None. There is a workaround for this: disabling qos extension from the sriov agent, but then, no BW limit dataplane enforcement can be done (and this is supported by our Intel NICs). Version-Release number of selected component (if applicable): RHOS-16.1-RHEL-8-20210304.n.0 How reproducible: 100% Steps to Reproduce: 1. create qos policy and qos rule openstack network qos policy create guaranteed_min_bw openstack network qos rule create --type minimum-bandwidth --min-kbps 1000000 --egress guaranteed_min_bw 2. create a direct port associated to the previous qos policy openstack port create --qos-policy guaranteed_min_bw --vnic-type direct --network nova port-direct-0 3. create a server with that port openstack server create --port port-direct-0 --image tempest_image --flavor 200 vm-0