diff mbox series

[v4,net-next,7/7] net: dsa: ocelot: request DSA to fix up lack of address learning on CPU port

Message ID 20210106095136.224739-8-olteanv@gmail.com (mailing list archive)
State Accepted
Commit c54913c1d4eeddcd7600a23ed77828c5d7c6e47c
Delegated to: Netdev Maintainers
Headers show
Series Offload software learnt bridge addresses to DSA | expand

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netdev/tree_selection success Clearly marked for net-next
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netdev/cc_maintainers warning 2 maintainers not CCed: alexandre.belloni@bootlin.com vladimir.oltean@nxp.com
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netdev/module_param success Was 0 now: 0
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netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
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Commit Message

Vladimir Oltean Jan. 6, 2021, 9:51 a.m. UTC 
From: Vladimir Oltean <vladimir.oltean@nxp.com>

Given the following setup:

ip link add br0 type bridge
ip link set eno0 master br0
ip link set swp0 master br0
ip link set swp1 master br0
ip link set swp2 master br0
ip link set swp3 master br0

Currently, packets received on a DSA slave interface (such as swp0)
which should be routed by the software bridge towards a non-switch port
(such as eno0) are also flooded towards the other switch ports (swp1,
swp2, swp3) because the destination is unknown to the hardware switch.

This patch addresses the issue by monitoring the addresses learnt by the
software bridge on eno0, and adding/deleting them as static FDB entries
on the CPU port accordingly.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
Changes in v4:
None.

Changes in v3:
s/learning_broken/assisted_learning/

Changes in v2:
Patch is new.

 drivers/net/dsa/ocelot/felix.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 7dc230677b78..90c3c76f21b2 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -629,6 +629,7 @@  static int felix_setup(struct dsa_switch *ds)
 
 	ds->mtu_enforcement_ingress = true;
 	ds->configure_vlan_while_not_filtering = true;
+	ds->assisted_learning_on_cpu_port = true;
 
 	return 0;
 }