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macvlan: Support bonding events 

Bonding and team drivers generate specific events during failover
that trigger switch updates.  When a macvlan device is configured
on top of bonding, we want switches to learn about the macvlan
devices as well.   This patch adds a handler to macvlan driver to
propagate these events to all macvlan devices.  We let the generic
inetdev event handler do the work.

This allows macvlan to operated correctly over active-backup
mode bond.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich 2014-06-04 16:23:37 -04:00 committed by David S. Miller
parent c565b488c6
commit 4c99125568
1 changed files with 7 additions and 0 deletions
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7
drivers/net/macvlan.c
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@ -1209,6 +1209,13 @@ static int macvlan_device_event(struct notifier_block *unused,
case NETDEV_PRE_TYPE_CHANGE:
/* Forbid underlaying device to change its type. */
return NOTIFY_BAD;
case NETDEV_NOTIFY_PEERS:
case NETDEV_BONDING_FAILOVER:
case NETDEV_RESEND_IGMP:
/* Propagate to all vlans */
list_for_each_entry(vlan, &port->vlans, list)
call_netdevice_notifiers(event, vlan->dev);
}
return NOTIFY_DONE;
}