Xilinx zynq zynqmp PL Ethernet Linux使用与优化

参考

Zynq-7000 AP SoC Performance – Gigabit Ethernet achieving the best performance
Linux AXI Ethernet driver
PS and PL based Ethernet in Zynq MPSoC
使用taskset将task绑定到指定的CPU上
绑定CPU逻辑核心的利器——taskset
taskset
zynq 1G&10G 网络功能
zynq-7000系列基于zynq-7015的vivado初步设计之linux下控制PL扩展的光以太网（1000BASE-X）

使用

设备树，

dma {
	xlnx,include-dre;
};

ethernet {
	local-mac-address = [00 0a 35 66 44 c4];
	phy-mode = "xgmii";
};

优化

加窗和应用绑核可以提高100MB/s左右，中断绑核实测反而会导致性能下降，

[email protected]:~# iperf3 -c 192.168.8.16
Connecting to host 192.168.8.16, port 5201
[  4] local 192.168.8.192 port 39628 connected to 192.168.8.16 port 5201
[ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
[  4]   0.00-1.00   sec   272 MBytes  2.28 Gbits/sec    0    392 KBytes       
[  4]   1.00-2.00   sec   273 MBytes  2.29 Gbits/sec    0    421 KBytes       
[  4]   2.00-3.00   sec   271 MBytes  2.27 Gbits/sec    0    433 KBytes       
[  4]   3.00-4.00   sec   272 MBytes  2.27 Gbits/sec    0    479 KBytes       
[  4]   4.00-5.00   sec   271 MBytes  2.28 Gbits/sec    0    479 KBytes       
[  4]   5.00-6.00   sec   272 MBytes  2.28 Gbits/sec    0    479 KBytes       
[  4]   6.00-7.00   sec   273 MBytes  2.29 Gbits/sec    0    479 KBytes       
[  4]   7.00-8.00   sec   272 MBytes  2.29 Gbits/sec    0    479 KBytes       
[  4]   8.00-9.00   sec   271 MBytes  2.27 Gbits/sec    0    479 KBytes       
[  4]   9.00-10.00  sec   271 MBytes  2.27 Gbits/sec    0    479 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  2.65 GBytes  2.28 Gbits/sec    0             sender
[  4]   0.00-10.00  sec  2.65 GBytes  2.28 Gbits/sec                  receiver

iperf Done.
[email protected]:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.8.16, port 1040
[  5] local 192.168.8.192 port 5201 connected to 192.168.8.16 port 1041
[ ID] Interval           Transfer     Bandwidth
[  5]   0.00-1.00   sec   217 MBytes  1.82 Gbits/sec                  
[  5]   1.00-2.00   sec   271 MBytes  2.27 Gbits/sec                  
[  5]   2.00-3.00   sec   271 MBytes  2.27 Gbits/sec                  
[  5]   3.00-4.00   sec   272 MBytes  2.28 Gbits/sec                  
[  5]   4.00-5.00   sec   273 MBytes  2.29 Gbits/sec                  
[  5]   5.00-6.00   sec   270 MBytes  2.27 Gbits/sec                  
[  5]   6.00-7.00   sec   271 MBytes  2.27 Gbits/sec                  
[  5]   7.00-8.00   sec   270 MBytes  2.27 Gbits/sec                  
[  5]   8.00-9.00   sec   271 MBytes  2.27 Gbits/sec                  
[  5]   9.00-10.00  sec   271 MBytes  2.27 Gbits/sec                  
[  5]  10.00-10.21  sec  56.9 MBytes  2.27 Gbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  5]   0.00-10.21  sec  0.00 Bytes  0.00 bits/sec                  sender
[  5]   0.00-10.21  sec  2.65 GBytes  2.23 Gbits/sec                  receiver