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From ba2203f36b981235556504fb7b62baee28512a40 Mon Sep 17 00:00:00 2001
From: DENG Qingfang <dqfext@gmail.com>
Date: Tue, 24 Aug 2021 11:37:50 +0800
Subject: [PATCH] net: dsa: mt7530: disable learning on standalone ports
This is a partial backport of commit 5a30833b9a16f8d1aa15de06636f9317ca51f9df
("net: dsa: mt7530: support MDB and bridge flag operations") upstream.
Make sure that the standalone ports start up with learning disabled.
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
---
drivers/net/dsa/mt7530.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1163,6 +1163,8 @@ mt7530_port_bridge_join(struct dsa_switc
PCR_MATRIX_MASK, PCR_MATRIX(port_bitmap));
priv->ports[port].pm |= PCR_MATRIX(port_bitmap);
+ mt7530_clear(priv, MT7530_PSC_P(port), SA_DIS);
+
mutex_unlock(&priv->reg_mutex);
return 0;
@@ -1260,6 +1262,8 @@ mt7530_port_bridge_leave(struct dsa_swit
PCR_MATRIX(BIT(MT7530_CPU_PORT)));
priv->ports[port].pm = PCR_MATRIX(BIT(MT7530_CPU_PORT));
+ mt7530_set(priv, MT7530_PSC_P(port), SA_DIS);
+
mutex_unlock(&priv->reg_mutex);
}
@@ -1817,9 +1821,13 @@ mt7530_setup(struct dsa_switch *ds)
ret = mt753x_cpu_port_enable(ds, i);
if (ret)
return ret;
- } else
+ } else {
mt7530_port_disable(ds, i);
+ /* Disable learning by default on all user ports */
+ mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
+ }
+
/* Enable consistent egress tag */
mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK,
PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
@@ -1979,9 +1987,13 @@ mt7531_setup(struct dsa_switch *ds)
ret = mt753x_cpu_port_enable(ds, i);
if (ret)
return ret;
- } else
+ } else {
mt7530_port_disable(ds, i);
+ /* Disable learning by default on all user ports */
+ mt7530_set(priv, MT7530_PSC_P(i), SA_DIS);
+ }
+
/* Enable consistent egress tag */
mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK,
PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT));
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