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-rw-r--r--net/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/Kconfig b/net/Kconfig
index ba554cedb615..f738a6f27665 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -432,6 +432,19 @@ config MAY_USE_DEVLINK
config PAGE_POOL
bool
+config FAILOVER
+ tristate "Generic failover module"
+ help
+ 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.
+
endif # if NET
# Used by archs to tell that they support BPF JIT compiler plus which flavour.