target/linux/generic/backport-5.10/759-net-next-net-dsa-qca8k-add-support-for-port-fast-aging.patch

   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
   5
   6 The switch supports fast aging by flushing any rule in the ARL
   7 table for a specific port.
   8
   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>
  12 ---
  13  drivers/net/dsa/qca8k.c | 11 +++++++++++
  14  drivers/net/dsa/qca8k.h |  1 +
  15  2 files changed, 12 insertions(+)
  16
  17 --- a/drivers/net/dsa/qca8k.c
  18 +++ b/drivers/net/dsa/qca8k.c
  19 @@ -1790,6 +1790,16 @@ qca8k_port_bridge_leave(struct dsa_switc
  20                   QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
  21  }
  22
  23 +static void
  24 +qca8k_port_fast_age(struct dsa_switch *ds, int port)
  25 +{
  26 +       struct qca8k_priv *priv = ds->priv;
  27 +
  28 +       mutex_lock(&priv->reg_mutex);
  29 +       qca8k_fdb_access(priv, QCA8K_FDB_FLUSH_PORT, port);
  30 +       mutex_unlock(&priv->reg_mutex);
  31 +}
  32 +
  33  static int
  34  qca8k_port_enable(struct dsa_switch *ds, int port,
  35                   struct phy_device *phy)
  36 @@ -2005,6 +2015,7 @@ static const struct dsa_switch_ops qca8k
  37         .port_stp_state_set     = qca8k_port_stp_state_set,
  38         .port_bridge_join       = qca8k_port_bridge_join,
  39         .port_bridge_leave      = qca8k_port_bridge_leave,
  40 +       .port_fast_age          = qca8k_port_fast_age,
  41         .port_fdb_add           = qca8k_port_fdb_add,
  42         .port_fdb_del           = qca8k_port_fdb_del,
  43         .port_fdb_dump          = qca8k_port_fdb_dump,
  44 --- a/drivers/net/dsa/qca8k.h
  45 +++ b/drivers/net/dsa/qca8k.h
  46 @@ -262,6 +262,7 @@ enum qca8k_fdb_cmd {
  47         QCA8K_FDB_FLUSH = 1,
  48         QCA8K_FDB_LOAD = 2,
  49         QCA8K_FDB_PURGE = 3,
  50 +       QCA8K_FDB_FLUSH_PORT = 5,
  51         QCA8K_FDB_NEXT = 6,
  52         QCA8K_FDB_SEARCH = 7,
  53  };