openstack/neutron
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Merge "Add limitation about QoS min bw for PF less SRIOV platforms"

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Zuul 2021-08-23 21:52:59 +00:00 committed by Gerrit Code Review
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doc/source/admin/config-qos-min-bw.rst
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@ -125,6 +125,14 @@ Limitations
treats physnet0 and Physnet0 as the same physnet. It is advised not to use
physnet names that are only differ by case.
* There are hardware platforms (e.g.: Cavium ThunderX) where it's possible
to have virtual functions which are network devices that are not associated
to a physical function. As bandwidth resources are tracked per physical
function, for such hardware the placement enforcement of the QoS minimum
bandwidth rules cannot be supported. Creating a server with ports using such
QoS policy targeting such hardware backend will result in a ``NoValidHost``
error during scheduling.
Placement pre-requisites
------------------------