1 From 4592538bfb0d5d3c3c8a1d7071724d081412ac91 Mon Sep 17 00:00:00 2001
2 From: Ansuel Smith <ansuelsmth@gmail.com>
3 Date: Mon, 22 Nov 2021 16:23:46 +0100
4 Subject: net: dsa: qca8k: add support for port fast aging
6 The switch supports fast aging by flushing any rule in the ARL
7 table for a specific port.
9 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
10 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
11 Signed-off-by: David S. Miller <davem@davemloft.net>
13 drivers/net/dsa/qca8k.c | 11 +++++++++++
14 drivers/net/dsa/qca8k.h | 1 +
15 2 files changed, 12 insertions(+)
17 diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
18 index bedaaa6b9a1df..d988df913ae02 100644
19 --- a/drivers/net/dsa/qca8k.c
20 +++ b/drivers/net/dsa/qca8k.c
21 @@ -1786,6 +1786,16 @@ qca8k_port_bridge_leave(struct dsa_switch *ds, int port, struct net_device *br)
22 QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
26 +qca8k_port_fast_age(struct dsa_switch *ds, int port)
28 + struct qca8k_priv *priv = ds->priv;
30 + mutex_lock(&priv->reg_mutex);
31 + qca8k_fdb_access(priv, QCA8K_FDB_FLUSH_PORT, port);
32 + mutex_unlock(&priv->reg_mutex);
36 qca8k_port_enable(struct dsa_switch *ds, int port,
37 struct phy_device *phy)
38 @@ -1994,6 +2004,7 @@ static const struct dsa_switch_ops qca8k_switch_ops = {
39 .port_stp_state_set = qca8k_port_stp_state_set,
40 .port_bridge_join = qca8k_port_bridge_join,
41 .port_bridge_leave = qca8k_port_bridge_leave,
42 + .port_fast_age = qca8k_port_fast_age,
43 .port_fdb_add = qca8k_port_fdb_add,
44 .port_fdb_del = qca8k_port_fdb_del,
45 .port_fdb_dump = qca8k_port_fdb_dump,
46 diff --git a/drivers/net/dsa/qca8k.h b/drivers/net/dsa/qca8k.h
47 index 91c94dfc9789d..a533b8cf143be 100644
48 --- a/drivers/net/dsa/qca8k.h
49 +++ b/drivers/net/dsa/qca8k.h
50 @@ -262,6 +262,7 @@ enum qca8k_fdb_cmd {
54 + QCA8K_FDB_FLUSH_PORT = 5,