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From: Frank Wunderlich <frank-w@public-files.de>
To: Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Landen Chao <Landen.Chao@mediatek.com>,
	Sean Wang <sean.wang@mediatek.com>,
	DENG Qingfang <dqfext@gmail.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	Daniel Golle <daniel@makrotopia.org>
Subject: [BUG] vlan-aware bridge breaks vlan on another port on same gmac
Date: Fri, 20 Jan 2023 17:45:35 +0100	[thread overview]
Message-ID: <trinity-e6294d28-636c-4c40-bb8b-b523521b00be-1674233135062@3c-app-gmx-bs36> (raw)

Hi,

noticed a bug while testing systemd, but it is reproducable with iproute2

tested on bananapi-r2 with kernel 5.15.80 and bananapi-r3 with kernel 6.2-rc1,
both use mt7530 dsa driver but different configs (mt7530 vs. mt7531).
have no other devices to test.

first create vlan on wan-port (wan and lan0 are dsa-user-ports on same gmac)

netif=wan
ip link set $netif up
ip link add link $netif name vlan110 type vlan id 110
ip link set vlan110 up
ip addr add 192.168.110.1/24 dev vlan110

vlan works now, other side pingable, vlan-tagged packets visible in tcpdump on both sides

now create the vlan-sware bridge (without vlan_filtering it works in my test)

BRIDGE=lanbr0
ip link add name ${BRIDGE} type bridge vlan_filtering 1 vlan_default_pvid 1
ip link set ${BRIDGE} up
ip link set lan0 master ${BRIDGE}
ip link set lan0 up

takes some time before it is applied and ping got lost

packets are received by other end but without vlan-tag

regards Frank


             reply	other threads:[~2023-01-20 16:46 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-20 16:45 Frank Wunderlich [this message]
2023-01-20 17:21 ` [BUG] vlan-aware bridge breaks vlan on another port on same gmac Vladimir Oltean
2023-01-20 23:34   ` [PATCH] mt7530 don't make the CPU port a VLAN user port kernel test robot
2023-01-21 12:11   ` Aw: Re: [BUG] vlan-aware bridge breaks vlan on another port on same gmac Frank Wunderlich
2023-01-21 12:22     ` Vladimir Oltean
2023-01-21 12:32       ` Aw: " Frank Wunderlich
2023-01-21 13:35         ` Vladimir Oltean
2023-01-21 14:12           ` Aw: " Frank Wunderlich
2023-01-30 12:58             ` Vladimir Oltean
2023-01-31 16:23               ` Aw: " Frank Wunderlich
2023-02-05 13:48                 ` Frank Wunderlich
2023-02-05 13:59                   ` Vladimir Oltean
2023-01-21 14:35           ` Aw: " Frank Wunderlich
2023-01-30 13:01             ` Vladimir Oltean

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