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Date:   Sat, 25 Feb 2023 19:11:32 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Frank Wunderlich <frank-w@...lic-files.de>,
        Vladimir Oltean <olteanv@...il.com>
Cc:     netdev <netdev@...r.kernel.org>, erkin.bozoglu@...ont.com,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>
Subject: Re: Aw: Re: Choose a default DSA CPU port

On 25.02.2023 16:50, Frank Wunderlich wrote:
> Hi
> 
>> Gesendet: Freitag, 24. Februar 2023 um 22:08 Uhr
>> Von: "Vladimir Oltean" <olteanv@...il.com>
> 
>> On Fri, Feb 24, 2023 at 09:44:43PM +0100, Frank Wunderlich wrote:
>>> 6.1.12 is clean and i get 940 Mbit/s over gmac0/port6
>>
>> Sounds like something which could be bisected?
> 
> managed to do a full bisect...
> 
> most steps needed the fix from Vladimir (1a3245fe0cf84e630598da4ab110a5f8a2d6730d net: ethernet: mtk_eth_soc: fix DSA TX tag hwaccel for switch port 0)
> 
> here is the result:
> 
> f63959c7eec3151c30a2ee0d351827b62e742dcb is the first bad commit

Thanks a lot for finding this. I can confirm reverting this fixes the 
low throughput on my Bananapi BPI-R2 as well.

$ iperf3 -c 192.168.2.1 -R
Connecting to host 192.168.2.1, port 5201
Reverse mode, remote host 192.168.2.1 is sending
[  5] local 192.168.2.2 port 56840 connected to 192.168.2.1 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  74.6 MBytes   626 Mbits/sec
[  5]   1.00-2.00   sec  74.4 MBytes   624 Mbits/sec
[  5]   2.00-3.00   sec  74.4 MBytes   624 Mbits/sec
[  5]   3.00-4.00   sec  74.3 MBytes   624 Mbits/sec
[  5]   4.00-5.00   sec  74.4 MBytes   624 Mbits/sec
[  5]   5.00-6.00   sec  74.3 MBytes   623 Mbits/sec
[  5]   6.00-7.00   sec  74.4 MBytes   624 Mbits/sec
[  5]   7.00-8.00   sec  74.3 MBytes   623 Mbits/sec
[  5]   8.00-9.00   sec  74.4 MBytes   624 Mbits/sec
[  5]   9.00-10.00  sec  74.3 MBytes   624 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   745 MBytes   625 Mbits/sec    0             sender
[  5]   0.00-10.00  sec   744 MBytes   624 Mbits/sec 
receiver

After reverting f63959c7eec3151c30a2ee0d351827b62e742dcb (and removing 
the lines that appeared on HEAD which caused a conflict):

$ iperf3 -c 192.168.2.1 -R
Connecting to host 192.168.2.1, port 5201
Reverse mode, remote host 192.168.2.1 is sending
[  5] local 192.168.2.2 port 36364 connected to 192.168.2.1 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec   112 MBytes   938 Mbits/sec
[  5]   1.00-2.00   sec   112 MBytes   939 Mbits/sec
[  5]   2.00-3.00   sec   112 MBytes   939 Mbits/sec
[  5]   3.00-4.00   sec   112 MBytes   939 Mbits/sec
[  5]   4.00-5.00   sec   112 MBytes   939 Mbits/sec
[  5]   5.00-6.00   sec   112 MBytes   939 Mbits/sec
[  5]   6.00-7.00   sec   112 MBytes   939 Mbits/sec
[  5]   7.00-8.00   sec   112 MBytes   939 Mbits/sec
[  5]   8.00-9.00   sec   112 MBytes   939 Mbits/sec
[  5]   9.00-10.00  sec   112 MBytes   939 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  1.09 GBytes   940 Mbits/sec    0             sender
[  5]   0.00-10.00  sec  1.09 GBytes   939 Mbits/sec 
receiver

Arınç

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