diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-07-19 15:51:40 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-20 16:04:27 +0200 |
| commit | b94dc99c0ddb74713da315853919393fb3e63b96 (patch) | |
| tree | 9f839966890a4400be58605618b5d98bd36a1be6 /net/dsa/dsa_priv.h | |
| parent | net: switchdev: introduce a fanout helper for SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE (diff) | |
| download | linux-b94dc99c0ddb74713da315853919393fb3e63b96.tar.xz linux-b94dc99c0ddb74713da315853919393fb3e63b96.zip | |
net: dsa: use switchdev_handle_fdb_{add,del}_to_device
Using the new fan-out helper for FDB entries installed on the software
bridge, we can install host addresses with the proper refcount on the
CPU port, such that this case:
ip link set swp0 master br0
ip link set swp1 master br0
ip link set swp2 master br0
ip link set swp3 master br0
ip link set br0 address 00:01:02:03:04:05
ip link set swp3 nomaster
works properly and the br0 address remains installed as a host entry
with refcount 3 instead of getting deleted.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/dsa_priv.h')
| -rw-r--r-- | net/dsa/dsa_priv.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index efd6bca78d2f..4d3ab9e6183a 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -268,13 +268,13 @@ void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid); extern const struct phylink_mac_ops dsa_port_phylink_mac_ops; static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, - struct net_device *dev) + const struct net_device *dev) { return dsa_port_to_bridge_port(dp) == dev; } static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, - struct net_device *bridge_dev) + const struct net_device *bridge_dev) { /* DSA ports connected to a bridge, and event was emitted * for the bridge. @@ -284,7 +284,7 @@ static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, /* Returns true if any port of this tree offloads the given net_device */ static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, - struct net_device *dev) + const struct net_device *dev) { struct dsa_port *dp; @@ -295,6 +295,19 @@ static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, return false; } +/* Returns true if any port of this tree offloads the given bridge */ +static inline bool dsa_tree_offloads_bridge(struct dsa_switch_tree *dst, + const struct net_device *bridge_dev) +{ + struct dsa_port *dp; + + list_for_each_entry(dp, &dst->ports, list) + if (dsa_port_offloads_bridge(dp, bridge_dev)) + return true; + + return false; +} + /* slave.c */ extern const struct dsa_device_ops notag_netdev_ops; extern struct notifier_block dsa_slave_switchdev_notifier; |