Linux Mainline

[maal]

After reading today's irc logs I've realized that ayufan has found the solution.

You need to change "rx_delay" in file "arch/arm64/boot/dts/rockchip/rk3328-rock64.dts".

From:
rx_delay = <0x11>;

To:
rx_delay = <0x18>;

After that change everything is peachy:

Code:

[root@cep03 ~]# uname -a
Linux cep03 4.15.0-rc6 #2 SMP PREEMPT Sat Jan 6 18:45:37 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux
[root@cep03 ~]# iperf3 -c 192.168.11.100 -R
Connecting to host 192.168.11.100, port 5201
Reverse mode, remote host 192.168.11.100 is sending
[  4] local 192.168.11.103 port 48676 connected to 192.168.11.100 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  60.6 MBytes   508 Mbits/sec                  
[  4]   1.00-2.00   sec  79.0 MBytes   663 Mbits/sec                  
[  4]   2.00-3.00   sec  96.8 MBytes   812 Mbits/sec                  
[  4]   3.00-4.00   sec  96.7 MBytes   811 Mbits/sec                  
[  4]   4.00-5.00   sec  96.6 MBytes   811 Mbits/sec                  
[  4]   5.00-6.00   sec  96.9 MBytes   813 Mbits/sec                  
[  4]   6.00-7.00   sec  97.0 MBytes   814 Mbits/sec                  
[  4]   7.00-8.00   sec  96.8 MBytes   812 Mbits/sec                  
[  4]   8.00-9.00   sec  97.0 MBytes   813 Mbits/sec                  
[  4]   9.00-10.00  sec  96.2 MBytes   807 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec   914 MBytes   767 Mbits/sec    0             sender
[  4]   0.00-10.00  sec   914 MBytes   767 Mbits/sec                  receiver

iperf Done.
[root@cep03 ~]# ethtool -S eth0 | grep err | grep -v ": 0"                                                                                                                                                            
[root@cep03 ~]#

I would like to thank ayufan for his contributions to linux on Rock64.