netdev - Aw: Re: Re: Re: [PATCH net v3 4/5] net: ethernet: mtk_eth_soc: drop generic vlan rx offload, only use DSA untagging

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Date:   Fri, 6 Jan 2023 13:18:31 +0100
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Felix Fietkau <nbd@....name>
Cc:     netdev@...r.kernel.org, John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Aw: Re:  Re: Re: [PATCH net v3 4/5] net: ethernet: mtk_eth_soc:
 drop generic vlan rx offload, only use DSA untagging

Hi,

update on my tests...something in my systemd-networkd breaks vlan on dsa-port.

if i boot with this disabled vlan added manually works on dsa-port and gmac too. so felix you can keep my tested-by.

if vlan is working and i activate networkd afterwards vlans are still working...i guess systemd puts the wan-interface into some kind of non-vlan-mode (vlan-filtering?).

this is my basic systemd-config:

/etc/systemd/network/15-wan.network
[Match]
Name=wan

[Network]
BindCarrier=eth0

#static setup
Address=192.168.0.19/24
Gateway=192.168.0.10
DNS=192.168.0.10

IPForward=yes

/etc/systemd/network/20-lanbr.netdev
[NetDev]
Name=lanbr0
Kind=bridge

[Bridge]
DefaultPVID=1
VLANFiltering=1
/etc/systemd/network/22-lanbr.network

[Match]
Name=lanbr0

[Network]
BindCarrier=eth0
ConfigureWithoutCarrier=true

Address=192.168.1.1/24
Address=fd00:A::10/64

[DHCPServer]
PoolOffset=100
PoolSize=150

/etc/systemd/network/05-eth0.network
[Match]
Name=eth0

[Network]
DHCP=no
LinkLocalAddressing=no
ConfigureWithoutCarrier=true

/etc/systemd/network/21-lanbr-bind.network
[Match]
Name=lan0 lan1 lan2 lan3

[Network]
Bridge=lanbr0

/etc/systemd/network/10-wan.link
[Match]
OriginalName=wan

[Link]
Name=wan
#MACAddressPolicy=none
#MACAddress=08:22:33:44:55:77


regards Frank


> Gesendet: Freitag, 30. Dezember 2022 um 17:13 Uhr
> Von: "Felix Fietkau" <nbd@....name>
> An: "Frank Wunderlich" <frank-w@...lic-files.de>
> Cc: netdev@...r.kernel.org, "John Crispin" <john@...ozen.org>, "Sean Wang" <sean.wang@...iatek.com>, "Mark Lee" <Mark-MC.Lee@...iatek.com>, "Lorenzo Bianconi" <lorenzo@...nel.org>, "David S. Miller" <davem@...emloft.net>, "Eric Dumazet" <edumazet@...gle.com>, "Jakub Kicinski" <kuba@...nel.org>, "Paolo Abeni" <pabeni@...hat.com>, "Matthias Brugger" <matthias.bgg@...il.com>, "Russell King" <linux@...linux.org.uk>, linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
> Betreff: Re: Aw: Re: Re: [PATCH net v3 4/5] net: ethernet: mtk_eth_soc: drop generic vlan rx offload, only use DSA untagging
>
> On 30.12.22 16:38, Frank Wunderlich wrote:
> > seems only tx is affected on r3, as i see packets on the vlan from my laptop
> >
> > tcpdump on R3 (e4:b9:7a:f7:c4:8b is mac from laptop):
> >
> > 13:47:05.265508 e4:b9:7a:f7:c4:8b > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 577: vlan 500, p 0, ethertype IPv4 (0x0800), 192.168.50.2.59389 > 192.168.50.255.21027: UDP, length 531
> > 13:47:05.265548 e4:b9:7a:f7:c4:8b > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 577: vlan 600, p 0, ethertype IPv4 (0x0800), 192.168.60.2.59389 > 192.168.60.255.21027: UDP, length 531
> >
> > regards Frank
> I don't have a setup to test 6.2 on my MT7986 board right now, but I did
> test latest OpenWrt with my changes and couldn't reproduce the issue there.
> I checked the diff between my tree and upstream and didn't find any
> relevant differences in mtk_eth_soc.c
> Not sure what's going on or how to narrow it down further.
>
> - Felix
>