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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)
37 lines
1.2 KiB
Diff
37 lines
1.2 KiB
Diff
From dd082716b43a3684b2f473ae5d1e76d1c076d86d Mon Sep 17 00:00:00 2001
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From: Tobias Waldekranz <tobias@waldekranz.com>
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Date: Sat, 16 Jan 2021 02:25:12 +0100
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Subject: [PATCH] net: dsa: Include local addresses in assisted CPU port
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learning
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Add local addresses (i.e. the ports' MAC addresses) to the hardware
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FDB when assisted CPU port learning is enabled.
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NOTE: The bridge's own MAC address is also "local". If that address is
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not shared with any port, the bridge's MAC is not be added by this
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functionality - but the following commit takes care of that case.
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Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
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---
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net/dsa/slave.c | 8 +++++---
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1 file changed, 5 insertions(+), 3 deletions(-)
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--- a/net/dsa/slave.c
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+++ b/net/dsa/slave.c
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@@ -1700,10 +1700,12 @@ static int dsa_slave_switchdev_event(str
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fdb_info = ptr;
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if (dsa_slave_dev_check(dev)) {
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- if (!fdb_info->added_by_user)
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- return NOTIFY_OK;
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-
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dp = dsa_slave_to_port(dev);
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+
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+ if (fdb_info->local && dp->ds->assisted_learning_on_cpu_port)
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+ dp = dp->cpu_dp;
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+ else if (!fdb_info->added_by_user)
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+ return NOTIFY_OK;
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} else {
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/* Snoop addresses learnt on foreign interfaces
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* bridged with us, for switches that don't
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