macvlan: multicast receive delayed in workqueue
Issue
- macvlan: multicast receive delayed in workqueue
- Processing of multicast into macvlan was changed since RHEL 7.2
- Inclusion of macvlan: Move broadcasts into a work queue causing performance regression.
Environment
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 7.2 and later
- macvlan networking, such as to KVM VMs or Podman containers
- Multicast traffic
- Low latency requirement (in the order of milliseconds)
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