netdev - Aw: Re: Choose a default DSA CPU port

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Date:   Fri, 24 Feb 2023 21:44:43 +0100
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Arınç ÜNAL <arinc.unal@...nc9.com>,
        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: Aw: Re: Choose a default DSA CPU port



> mhm...tried again with port5 disabled (pause enabled again) and got same result, so this seems not to be the cause > as i thought (but have now other patches in like core-clock dropped and RX fix).

6.1.12 is clean and i get 940 Mbit/s over gmac0/port6

root@...-r2:~# iperf3 -c 192.168.0.21
Connecting to host 192.168.0.21, port 5201
[  5] local 192.168.0.11 port 44876 connected to 192.168.0.21 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec   113 MBytes   950 Mbits/sec    0    464 KBytes
[  5]   1.00-2.00   sec   112 MBytes   939 Mbits/sec    0    485 KBytes
[  5]   2.00-3.00   sec   112 MBytes   940 Mbits/sec    0    485 KBytes
[  5]   3.00-4.00   sec   112 MBytes   938 Mbits/sec    0    485 KBytes
[  5]   4.00-5.00   sec   112 MBytes   937 Mbits/sec    0    485 KBytes
[  5]   5.00-6.00   sec   112 MBytes   941 Mbits/sec    0    485 KBytes
[  5]   6.00-7.00   sec   112 MBytes   940 Mbits/sec    0    485 KBytes
[  5]   7.00-8.00   sec   112 MBytes   937 Mbits/sec    0    485 KBytes
[  5]   8.00-9.00   sec   112 MBytes   942 Mbits/sec    0    485 KBytes
[  5]   9.00-10.00  sec   112 MBytes   936 Mbits/sec    0    485 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  1.09 GBytes   940 Mbits/sec    0             sender
[  5]   0.00-10.05  sec  1.09 GBytes   935 Mbits/sec                  receiver

6.2.0 is not...so something else in 6.2 has caused the speed drop

regards Frank