diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2025-03-04 09:50:23 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-03-13 13:02:09 +0100 |
| commit | bb73c406b4c6078c02ab60a48f9a73288b15ff9d (patch) | |
| tree | b898e9e151c8c7c84036d2be692c154e7bc80380 | |
| parent | 822c6a92d64c9c1044acf95df442a67fbc4212f7 (diff) | |
net: dsa: mt7530: Fix traffic flooding for MMIO devices
[ Upstream commit ccc2f5a436fbb0ae1fb598932a9b8e48423c1959 ]
On MMIO devices (e.g. MT7988 or EN7581) unicast traffic received on lanX
port is flooded on all other user ports if the DSA switch is configured
without VLAN support since PORT_MATRIX in PCR regs contains all user
ports. Similar to MDIO devices (e.g. MT7530 and MT7531) fix the issue
defining default VLAN-ID 0 for MT7530 MMIO devices.
Fixes: 110c18bfed414 ("net: dsa: mt7530: introduce driver for MT7988 built-in switch")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Chester A. Unal <chester.a.unal@arinc9.com>
Link: https://patch.msgid.link/20250304-mt7988-flooding-fix-v1-1-905523ae83e9@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/dsa/mt7530.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index d84ee1b419a6..abc979fbb45d 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2590,7 +2590,8 @@ mt7531_setup_common(struct dsa_switch *ds) if (ret < 0) return ret; - return 0; + /* Setup VLAN ID 0 for VLAN-unaware bridges */ + return mt7530_setup_vlan0(priv); } static int @@ -2686,11 +2687,6 @@ mt7531_setup(struct dsa_switch *ds) if (ret) return ret; - /* Setup VLAN ID 0 for VLAN-unaware bridges */ - ret = mt7530_setup_vlan0(priv); - if (ret) - return ret; - ds->assisted_learning_on_cpu_port = true; ds->mtu_enforcement_ingress = true; |