net: dsa: add FDB notifier
Add two new DSA_NOTIFIER_FDB_ADD and DSA_NOTIFIER_FDB_DEL events to notify not only a single switch, but all switches of a the fabric when an FDB entry is added or removed. For the moment, keep the current behavior and ignore other switches. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -20,6 +20,8 @@ enum {
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DSA_NOTIFIER_AGEING_TIME,
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DSA_NOTIFIER_AGEING_TIME,
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DSA_NOTIFIER_BRIDGE_JOIN,
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DSA_NOTIFIER_BRIDGE_JOIN,
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DSA_NOTIFIER_BRIDGE_LEAVE,
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DSA_NOTIFIER_BRIDGE_LEAVE,
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DSA_NOTIFIER_FDB_ADD,
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DSA_NOTIFIER_FDB_DEL,
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};
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};
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/* DSA_NOTIFIER_AGEING_TIME */
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/* DSA_NOTIFIER_AGEING_TIME */
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@ -36,6 +38,14 @@ struct dsa_notifier_bridge_info {
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int port;
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int port;
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};
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};
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/* DSA_NOTIFIER_FDB_* */
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struct dsa_notifier_fdb_info {
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const struct switchdev_obj_port_fdb *fdb;
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struct switchdev_trans *trans;
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int sw_index;
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int port;
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};
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struct dsa_device_ops {
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struct dsa_device_ops {
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struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev);
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struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev);
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struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev,
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struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev,
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@ -151,29 +151,26 @@ int dsa_port_fdb_add(struct dsa_port *dp,
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const struct switchdev_obj_port_fdb *fdb,
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const struct switchdev_obj_port_fdb *fdb,
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struct switchdev_trans *trans)
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struct switchdev_trans *trans)
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{
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{
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struct dsa_switch *ds = dp->ds;
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struct dsa_notifier_fdb_info info = {
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.sw_index = dp->ds->index,
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.port = dp->index,
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.trans = trans,
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.fdb = fdb,
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};
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if (switchdev_trans_ph_prepare(trans)) {
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return dsa_port_notify(dp, DSA_NOTIFIER_FDB_ADD, &info);
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if (!ds->ops->port_fdb_prepare || !ds->ops->port_fdb_add)
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return -EOPNOTSUPP;
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return ds->ops->port_fdb_prepare(ds, dp->index, fdb, trans);
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}
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ds->ops->port_fdb_add(ds, dp->index, fdb, trans);
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return 0;
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}
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}
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int dsa_port_fdb_del(struct dsa_port *dp,
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int dsa_port_fdb_del(struct dsa_port *dp,
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const struct switchdev_obj_port_fdb *fdb)
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const struct switchdev_obj_port_fdb *fdb)
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{
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{
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struct dsa_switch *ds = dp->ds;
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struct dsa_notifier_fdb_info info = {
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.sw_index = dp->ds->index,
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.port = dp->index,
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.fdb = fdb,
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};
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if (ds->ops->port_fdb_del)
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return dsa_port_notify(dp, DSA_NOTIFIER_FDB_DEL, &info);
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return -EOPNOTSUPP;
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return ds->ops->port_fdb_del(ds, dp->index, fdb);
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}
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}
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int dsa_port_fdb_dump(struct dsa_port *dp, struct switchdev_obj_port_fdb *fdb,
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int dsa_port_fdb_dump(struct dsa_port *dp, struct switchdev_obj_port_fdb *fdb,
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@ -84,6 +84,43 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds,
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return 0;
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return 0;
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}
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}
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static int dsa_switch_fdb_add(struct dsa_switch *ds,
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struct dsa_notifier_fdb_info *info)
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{
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const struct switchdev_obj_port_fdb *fdb = info->fdb;
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struct switchdev_trans *trans = info->trans;
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/* Do not care yet about other switch chips of the fabric */
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if (ds->index != info->sw_index)
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return 0;
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if (switchdev_trans_ph_prepare(trans)) {
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if (!ds->ops->port_fdb_prepare || !ds->ops->port_fdb_add)
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return -EOPNOTSUPP;
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return ds->ops->port_fdb_prepare(ds, info->port, fdb, trans);
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}
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ds->ops->port_fdb_add(ds, info->port, fdb, trans);
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return 0;
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}
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static int dsa_switch_fdb_del(struct dsa_switch *ds,
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struct dsa_notifier_fdb_info *info)
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{
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const struct switchdev_obj_port_fdb *fdb = info->fdb;
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/* Do not care yet about other switch chips of the fabric */
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if (ds->index != info->sw_index)
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return 0;
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if (!ds->ops->port_fdb_del)
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return -EOPNOTSUPP;
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return ds->ops->port_fdb_del(ds, info->port, fdb);
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}
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static int dsa_switch_event(struct notifier_block *nb,
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static int dsa_switch_event(struct notifier_block *nb,
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unsigned long event, void *info)
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unsigned long event, void *info)
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{
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{
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@ -100,6 +137,12 @@ static int dsa_switch_event(struct notifier_block *nb,
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case DSA_NOTIFIER_BRIDGE_LEAVE:
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case DSA_NOTIFIER_BRIDGE_LEAVE:
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err = dsa_switch_bridge_leave(ds, info);
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err = dsa_switch_bridge_leave(ds, info);
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break;
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break;
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case DSA_NOTIFIER_FDB_ADD:
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err = dsa_switch_fdb_add(ds, info);
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break;
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case DSA_NOTIFIER_FDB_DEL:
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err = dsa_switch_fdb_del(ds, info);
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break;
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default:
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default:
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err = -EOPNOTSUPP;
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err = -EOPNOTSUPP;
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break;
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break;
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