generic: 5.15: qca8k: add kernel version tag on backport patch

[openwrt/staging/svanheule.git] / target / linux / generic / backport-5.15 / 759-v5.17-net-next-net-dsa-qca8k-add-support-for-port-fast-aging.patch

diff --git a/target/linux/generic/backport-5.15/759-v5.17-net-next-net-dsa-qca8k-add-support-for-port-fast-aging.patch b/target/linux/generic/backport-5.15/759-v5.17-net-next-net-dsa-qca8k-add-support-for-port-fast-aging.patch
new file mode 100644 (file)
index 0000000..8ad7ab4
--- /dev/null
+++ b/target/linux/generic/backport-5.15/759-v5.17-net-next-net-dsa-qca8k-add-support-for-port-fast-aging.patch
@@ -0,0 +1,53 @@
+From 4592538bfb0d5d3c3c8a1d7071724d081412ac91 Mon Sep 17 00:00:00 2001
+From: Ansuel Smith <ansuelsmth@gmail.com>
+Date: Mon, 22 Nov 2021 16:23:46 +0100
+Subject: 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>
+---
+ drivers/net/dsa/qca8k.c | 11 +++++++++++
+ drivers/net/dsa/qca8k.h |  1 +
+ 2 files changed, 12 insertions(+)
+
+--- a/drivers/net/dsa/qca8k.c
++++ b/drivers/net/dsa/qca8k.c
+@@ -1790,6 +1790,16 @@ qca8k_port_bridge_leave(struct dsa_switc
+                 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)
+@@ -2017,6 +2027,7 @@ static const struct dsa_switch_ops qca8k
+       .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,
+--- 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,
+ };