FS#3717 - WRT1900ACS LAN Switch speed on kernel 5.4

[openwrt-bot]

pesa1234:

Dear, I 've found an issue with DSA and kernel 5.4.
I'm on 21.02 SNAPSHOT.
My upload speed on WAN is only 10 mbps when a device with LAN connection is linked to 10mbps.
When a device 100mbps is connected to switch all speed is 100mbps not 1 gbps
It seems that the upload speed follow the lowest lan speed...

First test is with 10mbps connection on LAN3. --> Test was done from LAN1 to router.
Second test is with a LAN2 device conneted with 100mbps. --> Test was done from LAN1 to router

PS C:\Users\Andrea\Downloads\iperf-3.1.3-win64> .\iperf3.exe -c 192.168.181.1
Connecting to host 192.168.181.1, port 5201
[ 4] local 192.168.181.159 port 50593 connected to 192.168.181.1 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.01 sec 384 KBytes 3.12 Mbits/sec
[ 4] 1.01-2.01 sec 640 KBytes 5.26 Mbits/sec
[ 4] 2.01-3.01 sec 1.12 MBytes 9.35 Mbits/sec
[ 4] 3.01-4.01 sec 1.12 MBytes 9.52 Mbits/sec
[ 4] 4.01-5.01 sec 1.12 MBytes 9.41 Mbits/sec
[ 4] 5.01-6.00 sec 1.12 MBytes 9.50 Mbits/sec
[ 4] 6.00-7.00 sec 1.12 MBytes 9.46 Mbits/sec
[ 4] 7.00-8.00 sec 1.12 MBytes 9.41 Mbits/sec
[ 4] 8.00-9.01 sec 1.12 MBytes 9.40 Mbits/sec
[ 4] 9.01-10.01 sec 1.12 MBytes 9.44 Mbits/sec

---

[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.01 sec 10.0 MBytes 8.38 Mbits/sec sender
[ 4] 0.00-10.01 sec 9.81 MBytes 8.23 Mbits/sec receiver

iperf Done.
PS C:\Users\Andrea\Downloads\iperf-3.1.3-win64> .\iperf3.exe -c 192.168.181.1 -R
Connecting to host 192.168.181.1, port 5201
Reverse mode, remote host 192.168.181.1 is sending
[ 4] local 192.168.181.159 port 50611 connected to 192.168.181.1 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 95.6 MBytes 802 Mbits/sec
[ 4] 1.00-2.00 sec 97.9 MBytes 821 Mbits/sec
[ 4] 2.00-3.00 sec 101 MBytes 847 Mbits/sec
[ 4] 3.00-4.00 sec 101 MBytes 850 Mbits/sec
[ 4] 4.00-5.00 sec 105 MBytes 884 Mbits/sec
[ 4] 5.00-6.00 sec 92.3 MBytes 774 Mbits/sec
[ 4] 6.00-7.00 sec 105 MBytes 877 Mbits/sec
[ 4] 7.00-8.00 sec 102 MBytes 849 Mbits/sec
[ 4] 8.00-9.00 sec 99.4 MBytes 836 Mbits/sec
[ 4] 9.00-10.00 sec 107 MBytes 894 Mbits/sec

---

[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 1006 MBytes 844 Mbits/sec 23 sender
[ 4] 0.00-10.00 sec 1006 MBytes 844 Mbits/sec receiver


This new test is with latest 19.07 (previous kernel no dsa)

BusyBox v1.30.1 () built-in shell (ash)

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| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -| || | | || || |
|_____|| |||||___||| |____|
|| W I R E L E S S F R E E D O M

OpenWrt 19.07-SNAPSHOT, r11328-81266d9001

root@WRT1900ACS:~# iperf3 -s

Server listening on 5201

Accepted connection from 192.168.181.159, port 48454
[ 5] local 192.168.181.1 port 5201 connected to 192.168.181.159 port 48456
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 108 MBytes 905 Mbits/sec
[ 5] 1.00-2.00 sec 109 MBytes 915 Mbits/sec
[ 5] 2.00-3.00 sec 109 MBytes 914 Mbits/sec
[ 5] 3.00-4.00 sec 107 MBytes 900 Mbits/sec
[ 5] 4.00-5.00 sec 108 MBytes 907 Mbits/sec
[ 5] 5.00-6.00 sec 109 MBytes 912 Mbits/sec
[ 5] 6.00-7.00 sec 107 MBytes 896 Mbits/sec
[ 5] 7.00-8.00 sec 109 MBytes 917 Mbits/sec
[ 5] 8.00-9.00 sec 108 MBytes 905 Mbits/sec
[ 5] 9.00-10.00 sec 108 MBytes 903 Mbits/sec
[ 5] 10.00-10.00 sec 293 KBytes 892 Mbits/sec

---

[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 1.06 GBytes 907 Mbits/sec

I also noticed that with the latest version the switch LEDs flash all together and not only follow where there is communication, but I don't think this is a problem.

Is this speed issue a bug or I do something wrong? I don't make any changes to network config from standard. Only changed IP from 192.168.1.1 to 192.168.181.1.

[openwrt-bot]

pesa1234:

Nobody?