forked from luck/tmp_suning_uos_patched
30c8bd5aa8
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 migration of VMs with direct attached VFs by failing over to the paravirtual datapath when the VF is unplugged. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
19 lines
639 B
ReStructuredText
19 lines
639 B
ReStructuredText
.. 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.
|