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- .. SPDX-License-Identifier: GPL-2.0
- ========
- FAILOVER
- ========
- Overview
- ========
- The failover module provides a generic interface for paravirtual drivers
- to register a netdev and a set of ops with a failover instance. The ops
- are used as event handlers that get called to handle netdev register/
- unregister/link change/name change events on slave pci ethernet devices
- with the same mac address as the failover netdev.
- This enables paravirtual drivers to use a VF as an accelerated low latency
- datapath. It also allows live migration of VMs with direct attached VFs by
- failing over to the paravirtual datapath when the VF is unplugged.
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