diff options
Diffstat (limited to 'target/linux/generic/pending-5.4/767-net-dsa-Sync-static-FDB-entries-on-foreign-interface.patch')
| -rw-r--r-- | target/linux/generic/pending-5.4/767-net-dsa-Sync-static-FDB-entries-on-foreign-interface.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/767-net-dsa-Sync-static-FDB-entries-on-foreign-interface.patch b/target/linux/generic/pending-5.4/767-net-dsa-Sync-static-FDB-entries-on-foreign-interface.patch new file mode 100644 index 0000000000..94f45c6be4 --- /dev/null +++ b/target/linux/generic/pending-5.4/767-net-dsa-Sync-static-FDB-entries-on-foreign-interface.patch @@ -0,0 +1,56 @@ +From 81e39fd78db82fb51b05fff309b9c521f1a0bc5a Mon Sep 17 00:00:00 2001 +From: Tobias Waldekranz <tobias@waldekranz.com> +Date: Sat, 16 Jan 2021 02:25:14 +0100 +Subject: [PATCH] net: dsa: Sync static FDB entries on foreign interfaces to + hardware + +Reuse the "assisted_learning_on_cpu_port" functionality to always add +entries for user-configured entries on foreign interfaces, even if +assisted_learning_on_cpu_port is not enabled. E.g. in this situation: + + br0 + / \ +swp0 dummy0 + +$ bridge fdb add 02:00:de:ad:00:01 dev dummy0 vlan 1 master + +Results in DSA adding an entry in the hardware FDB, pointing this +address towards the CPU port. + +The same is true for entries added to the bridge itself, e.g: + +$ bridge fdb add 02:00:de:ad:00:01 dev br0 vlan 1 self + +Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> +--- + net/dsa/slave.c | 12 ++++++++---- + 1 file changed, 8 insertions(+), 4 deletions(-) + +--- a/net/dsa/slave.c ++++ b/net/dsa/slave.c +@@ -1702,9 +1702,12 @@ static int dsa_slave_switchdev_event(str + else if (!fdb_info->added_by_user) + return NOTIFY_OK; + } else { +- /* Snoop addresses learnt on foreign interfaces +- * bridged with us, for switches that don't +- * automatically learn SA from CPU-injected traffic ++ /* Snoop addresses added to foreign interfaces ++ * bridged with us, or the bridge ++ * itself. Dynamically learned addresses can ++ * also be added for switches that don't ++ * automatically learn SA from CPU-injected ++ * traffic. + */ + struct net_device *br_dev; + struct dsa_slave_priv *p; +@@ -1726,7 +1729,8 @@ static int dsa_slave_switchdev_event(str + + dp = p->dp->cpu_dp; + +- if (!dp->ds->assisted_learning_on_cpu_port) ++ if (!fdb_info->added_by_user && ++ !dp->ds->assisted_learning_on_cpu_port) + return NOTIFY_DONE; + } + |