net: dsa: qca8k: add support for port fast aging

The switch supports fast aging by flushing any rule in the ARL
table for a specific port.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index bedaaa6..d988df9 100644 (file)
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -1786,6 +1786,16 @@ qca8k_port_bridge_leave(struct dsa_switch *ds, int port, struct net_device *br)
                  QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
 }
 
+static void
+qca8k_port_fast_age(struct dsa_switch *ds, int port)
+{
+       struct qca8k_priv *priv = ds->priv;
+
+       mutex_lock(&priv->reg_mutex);
+       qca8k_fdb_access(priv, QCA8K_FDB_FLUSH_PORT, port);
+       mutex_unlock(&priv->reg_mutex);
+}
+
 static int
 qca8k_port_enable(struct dsa_switch *ds, int port,
                  struct phy_device *phy)
@@ -1994,6 +2004,7 @@ static const struct dsa_switch_ops qca8k_switch_ops = {
        .port_stp_state_set     = qca8k_port_stp_state_set,
        .port_bridge_join       = qca8k_port_bridge_join,
        .port_bridge_leave      = qca8k_port_bridge_leave,
+       .port_fast_age          = qca8k_port_fast_age,
        .port_fdb_add           = qca8k_port_fdb_add,
        .port_fdb_del           = qca8k_port_fdb_del,
        .port_fdb_dump          = qca8k_port_fdb_dump,

diff --git a/drivers/net/dsa/qca8k.h b/drivers/net/dsa/qca8k.h
index 91c94df..a533b8c 100644 (file)
--- a/drivers/net/dsa/qca8k.h
+++ b/drivers/net/dsa/qca8k.h
@@ -262,6 +262,7 @@ enum qca8k_fdb_cmd {
        QCA8K_FDB_FLUSH = 1,
        QCA8K_FDB_LOAD = 2,
        QCA8K_FDB_PURGE = 3,
+       QCA8K_FDB_FLUSH_PORT = 5,
        QCA8K_FDB_NEXT = 6,
        QCA8K_FDB_SEARCH = 7,
 };