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authorDENG Qingfang <dqfext@gmail.com>2022-02-03 20:07:02 +0800
committerStijn Tintel <stijn@linux-ipv6.be>2022-02-05 17:46:59 +0200
commitee6ba216d8ba1b02154c287e64d709a8bc7b0054 (patch)
tree63429a2714280762f1aa1c1c2f48971fa60bf43b /target/linux/generic/backport-5.10/765-v5.15-net-dsa-mt7530-disable-learning-on-standalone-ports.patch
parent4834565bb4ebb9a0089afb047eea091346a91952 (diff)
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kernel: backport MT7530 VLAN fix
Fix FDB learning bugs when VLAN filtering is enabled. Signed-off-by: DENG Qingfang <dqfext@gmail.com> Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com> Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
Diffstat (limited to 'target/linux/generic/backport-5.10/765-v5.15-net-dsa-mt7530-disable-learning-on-standalone-ports.patch')
-rw-r--r--target/linux/generic/backport-5.10/765-v5.15-net-dsa-mt7530-disable-learning-on-standalone-ports.patch65
1 files changed, 65 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/765-v5.15-net-dsa-mt7530-disable-learning-on-standalone-ports.patch b/target/linux/generic/backport-5.10/765-v5.15-net-dsa-mt7530-disable-learning-on-standalone-ports.patch
new file mode 100644
index 0000000000..a0bb7fa888
--- /dev/null
+++ b/target/linux/generic/backport-5.10/765-v5.15-net-dsa-mt7530-disable-learning-on-standalone-ports.patch
@@ -0,0 +1,65 @@
+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));