• Sridhar Samudrala's avatar
    net: Introduce generic failover module · 30c8bd5a
    Sridhar Samudrala authored
    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: default avatarSridhar Samudrala <sridhar.samudrala@intel.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    30c8bd5a
failover.rst 639 Bytes