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net: introduce default neigh_construct/destroy ndo calls for L2 upper devices

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L2 upper device needs to propagate neigh_construct/destroy calls down to
lower devices. Do this by defining default ndo functions and use them in
team, bond, bridge and vlan.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2016-07-05 11:27:38 +02:00
committed by David S. Miller
parent 503eebc265
commit 18bfb924f0
6 changed files with 56 additions and 0 deletions
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44
net/core/dev.c
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@@ -6087,6 +6087,50 @@ void netdev_lower_state_changed(struct net_device *lower_dev,
}
EXPORT_SYMBOL(netdev_lower_state_changed);
int netdev_default_l2upper_neigh_construct(struct net_device *dev,
struct neighbour *n)
{
struct net_device *lower_dev, *stop_dev;
struct list_head *iter;
int err;
netdev_for_each_lower_dev(dev, lower_dev, iter) {
if (!lower_dev->netdev_ops->ndo_neigh_construct)
continue;
err = lower_dev->netdev_ops->ndo_neigh_construct(lower_dev, n);
if (err) {
stop_dev = lower_dev;
goto rollback;
}
}
return 0;
rollback:
netdev_for_each_lower_dev(dev, lower_dev, iter) {
if (lower_dev == stop_dev)
break;
if (!lower_dev->netdev_ops->ndo_neigh_destroy)
continue;
lower_dev->netdev_ops->ndo_neigh_destroy(lower_dev, n);
}
return err;
}
EXPORT_SYMBOL_GPL(netdev_default_l2upper_neigh_construct);
void netdev_default_l2upper_neigh_destroy(struct net_device *dev,
struct neighbour *n)
{
struct net_device *lower_dev;
struct list_head *iter;
netdev_for_each_lower_dev(dev, lower_dev, iter) {
if (!lower_dev->netdev_ops->ndo_neigh_destroy)
continue;
lower_dev->netdev_ops->ndo_neigh_destroy(lower_dev, n);
}
}
EXPORT_SYMBOL_GPL(netdev_default_l2upper_neigh_destroy);
static void dev_change_rx_flags(struct net_device *dev, int flags)
{
const struct net_device_ops *ops = dev->netdev_ops;