mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 15:02:32 +00:00
98b1a6435f
Without this patch we have to manually bring up the CPU interface in
failsafe mode.
This was backported from kernel 5.12.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 2e17c71095)
57 lines
1.8 KiB
Diff
57 lines
1.8 KiB
Diff
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
|
|
@@ -1707,9 +1707,12 @@ 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;
|
|
@@ -1731,7 +1734,8 @@ 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;
|
|
}
|
|
|