5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
19 lines
639 B
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19 lines
639 B
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.. SPDX-License-Identifier: GPL-2.0
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========
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FAILOVER
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========
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Overview
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========
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The failover module provides a generic interface for paravirtual drivers
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to register a netdev and a set of ops with a failover instance. The ops
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are used as event handlers that get called to handle netdev register/
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unregister/link change/name change events on slave pci ethernet devices
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with the same mac address as the failover netdev.
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This enables paravirtual drivers to use a VF as an accelerated low latency
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datapath. It also allows live migration of VMs with direct attached VFs by
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failing over to the paravirtual datapath when the VF is unplugged.
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