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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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2
drivers/net/bonding/bond_main.c
View File

@ -4137,6 +4137,8 @@ static const struct net_device_ops bond_netdev_ops = {
.ndo_add_slave = bond_enslave,
.ndo_del_slave = bond_release,
.ndo_fix_features = bond_fix_features,
.ndo_neigh_construct = netdev_default_l2upper_neigh_construct,
.ndo_neigh_destroy = netdev_default_l2upper_neigh_destroy,
.ndo_bridge_setlink = switchdev_port_bridge_setlink,
.ndo_bridge_getlink = switchdev_port_bridge_getlink,
.ndo_bridge_dellink = switchdev_port_bridge_dellink,

2
drivers/net/team/team.c
View File

@ -2002,6 +2002,8 @@ static const struct net_device_ops team_netdev_ops = {
.ndo_add_slave = team_add_slave,
.ndo_del_slave = team_del_slave,
.ndo_fix_features = team_fix_features,
.ndo_neigh_construct = netdev_default_l2upper_neigh_construct,
.ndo_neigh_destroy = netdev_default_l2upper_neigh_destroy,
.ndo_change_carrier = team_change_carrier,
.ndo_bridge_setlink = switchdev_port_bridge_setlink,
.ndo_bridge_getlink = switchdev_port_bridge_getlink,

4
include/linux/netdevice.h
View File

@ -3845,6 +3845,10 @@ void *netdev_lower_dev_get_private(struct net_device *dev,
struct net_device *lower_dev);
void netdev_lower_state_changed(struct net_device *lower_dev,
void *lower_state_info);
int netdev_default_l2upper_neigh_construct(struct net_device *dev,
struct neighbour *n);
void netdev_default_l2upper_neigh_destroy(struct net_device *dev,
struct neighbour *n);
/* RSS keys are 40 or 52 bytes long */
#define NETDEV_RSS_KEY_LEN 52

2
net/8021q/vlan_dev.c
View File

@ -790,6 +790,8 @@ static const struct net_device_ops vlan_netdev_ops = {
.ndo_netpoll_cleanup = vlan_dev_netpoll_cleanup,
#endif
.ndo_fix_features = vlan_dev_fix_features,
.ndo_neigh_construct = netdev_default_l2upper_neigh_construct,
.ndo_neigh_destroy = netdev_default_l2upper_neigh_destroy,
.ndo_fdb_add = switchdev_port_fdb_add,
.ndo_fdb_del = switchdev_port_fdb_del,
.ndo_fdb_dump = switchdev_port_fdb_dump,

2
net/bridge/br_device.c
View File

@ -349,6 +349,8 @@ static const struct net_device_ops br_netdev_ops = {
.ndo_add_slave = br_add_slave,
.ndo_del_slave = br_del_slave,
.ndo_fix_features = br_fix_features,
.ndo_neigh_construct = netdev_default_l2upper_neigh_construct,
.ndo_neigh_destroy = netdev_default_l2upper_neigh_destroy,
.ndo_fdb_add = br_fdb_add,
.ndo_fdb_del = br_fdb_delete,
.ndo_fdb_dump = br_fdb_dump,

44
net/core/dev.c
View File

@ -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;