奇葩板子的eth rstn默认是拉低的，首先要用一个const拉高复位。
UART必须至少开一个，因为lwip库默认调用了uart的头文件，没uart编译无法通过，如果不用uart就放到EMIO直接不引出IO就行。
库里打开LWIP，。
lwip的tcd wnd拉到65535，不然性能受限制。
Server默认是测PC -> ZYNQ的
默认wnd:
PS C:\Users\xt\Downloads> .\iperf-2.2.2-win64.exe -c 192.168.1.10 -i 1 -t 30
------------------------------------------------------------
Client connecting to 192.168.1.10, TCP port 5001
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[ 1] local 192.168.1.2 port 59864 connected with 192.168.1.10 port 5001
[ ID] Interval Transfer Bandwidth
[ 1] 0.00-1.00 sec 20.4 MBytes 171 Mbits/sec
[ 1] 1.00-2.00 sec 20.6 MBytes 173 Mbits/sec
[ 1] 2.00-3.00 sec 21.1 MBytes 177 Mbits/sec
[ 1] 3.00-4.00 sec 21.1 MBytes 177 Mbits/sec
[ 1] 4.00-5.00 sec 21.1 MBytes 177 Mbits/sec
[ 1] 5.00-6.00 sec 20.4 MBytes 171 Mbits/sec
[ 1] 6.00-6.89 sec 17.9 MBytes 169 Mbits/sec
[ 1] 0.00-6.89 sec 143 MBytes 174 Mbits/sec改到65535后：
PS C:\Users\xt\Downloads> .\iperf-2.2.2-win64.exe -c 192.168.1.10 -i 1 -t 30
------------------------------------------------------------
Client connecting to 192.168.1.10, TCP port 5001
TCP window size: 64.0 KByte (default)
------------------------------------------------------------
[ 1] local 192.168.1.2 port 60255 connected with 192.168.1.10 port 5001
[ ID] Interval Transfer Bandwidth
[ 1] 0.00-1.00 sec 103 MBytes 866 Mbits/sec
[ 1] 1.00-2.00 sec 111 MBytes 928 Mbits/sec
[ 1] 2.00-3.00 sec 103 MBytes 863 Mbits/sec
[ 1] 3.00-4.00 sec 108 MBytes 905 Mbits/sec
[ 1] 4.00-5.00 sec 100 MBytes 841 Mbits/sec
[ 1] 5.00-6.00 sec 96.8 MBytes 812 Mbits/sec
[ 1] 6.00-7.00 sec 113 MBytes 949 Mbits/sec
[ 1] 7.00-8.00 sec 105 MBytes 877 Mbits/sec
[ 1] 8.00-9.00 sec 110 MBytes 920 Mbits/sec
[ 1] 9.00-10.00 sec 111 MBytes 931 Mbits/sec
[ 1] 10.00-11.00 sec 102 MBytes 855 Mbits/sec
[ 1] 11.00-12.00 sec 112 MBytes 935 Mbits/sec
[ 1] 12.00-13.00 sec 107 MBytes 898 Mbits/sec
[ 1] 13.00-14.00 sec 104 MBytes 872 Mbits/sec
[ 1] 14.00-15.00 sec 109 MBytes 914 Mbits/sec
[ 1] 15.00-16.00 sec 103 MBytes 864 Mbits/sec
[ 1] 16.00-17.00 sec 107 MBytes 901 Mbits/sec
[ 1] 17.00-18.00 sec 109 MBytes 913 Mbits/sec
[ 1] 18.00-19.00 sec 110 MBytes 924 Mbits/sec
[ 1] 19.00-20.00 sec 107 MBytes 900 Mbits/sec
[ 1] 20.00-21.00 sec 105 MBytes 882 Mbits/sec
[ 1] 21.00-22.00 sec 107 MBytes 900 Mbits/sec
[ 1] 22.00-23.00 sec 109 MBytes 911 Mbits/sec
[ 1] 23.00-24.00 sec 112 MBytes 938 Mbits/sec
[ 1] 24.00-25.00 sec 110 MBytes 926 Mbits/sec
[ 1] 25.00-26.00 sec 107 MBytes 899 Mbits/sec
[ 1] 26.00-27.00 sec 105 MBytes 883 Mbits/sec
[ 1] 27.00-28.00 sec 106 MBytes 891 Mbits/sec
[ 1] 28.00-29.00 sec 102 MBytes 859 Mbits/sec
[ 1] 29.00-30.00 sec 109 MBytes 915 Mbits/sec
[ 1] 0.00-30.02 sec 3.13 GBytes 895 Mbits/secZYNQ发送PC接收也要改
默认值
[ 1] local 192.168.1.100 port 5001 connected with 192.168.1.10 port 49154
[ ID] Interval Transfer Bandwidth
[ 1] 0.00-1.00 sec 798 KBytes 6.54 Mbits/sec
[ 1] 1.00-2.00 sec 917 KBytes 7.51 Mbits/sec
[ 1] 2.00-3.00 sec 914 KBytes 7.49 Mbits/sec
[ 1] 3.00-4.00 sec 654 KBytes 5.36 Mbits/sec
[ 1] 4.00-5.00 sec 654 KBytes 5.36 Mbits/sec
[ 1] 5.00-6.00 sec 796 KBytes 6.52 Mbits/sec
[ 1] 6.00-7.00 sec 919 KBytes 7.53 Mbits/sec
[ 1] 7.00-8.00 sec 911 KBytes 7.46 Mbits/sec
[ 1] 8.00-9.00 sec 786 KBytes 6.44 Mbits/sec
[ 1] 9.00-10.00 sec 1.03 MBytes 8.62 Mbits/sec
[ 1] 10.00-11.00 sec 657 KBytes 5.38 Mbits/sec
[ 1] 11.00-12.00 sec 792 KBytes 6.49 Mbits/sec
[ 1] 12.00-13.00 sec 657 KBytes 5.38 Mbits/sec
[ 1] 13.00-14.00 sec 794 KBytes 6.50 Mbits/sec
[ 1] 14.00-15.00 sec 654 KBytes 5.36 Mbits/sec
[ 1] 15.00-16.00 sec 656 KBytes 5.37 Mbits/sec改之后：
[ 2] local 192.168.1.100 port 5001 connected with 192.168.1.10 port 49153
[ ID] Interval Transfer Bandwidth
[ 2] 0.00-5.00 sec 549 MBytes 922 Mbits/sec
[ 2] 5.00-10.00 sec 548 MBytes 920 Mbits/sec
[ 2] 10.00-15.00 sec 547 MBytes 918 Mbits/sec
[ 2] 15.00-20.00 sec 544 MBytes 913 Mbits/sec
[ 2] 20.00-25.00 sec 547 MBytes 918 Mbits/sec
[ 2] 25.00-30.00 sec 546 MBytes 915 Mbits/sec
[ 2] 30.00-35.00 sec 548 MBytes 919 Mbits/sec
[ 2] 35.00-40.00 sec 549 MBytes 920 Mbits/sec
[ 2] 40.00-45.00 sec 543 MBytes 911 Mbits/sec
[ 2] 45.00-50.00 sec 543 MBytes 910 Mbits/sec
[ 2] 50.00-55.00 sec 544 MBytes 912 Mbits/sec
[ 2] 55.00-60.00 sec 548 MBytes 920 Mbits/sec
[ 2] 60.00-65.00 sec 547 MBytes 917 Mbits/sec
[ 2] 65.00-70.00 sec 541 MBytes 908 Mbits/sec
[ 2] 70.00-75.00 sec 544 MBytes 912 Mbits/sec
[ 2] 75.00-80.00 sec 543 MBytes 910 Mbits/sec
[ 2] 80.00-85.00 sec 549 MBytes 920 Mbits/sec
[ 2] 85.00-90.00 sec 546 MBytes 916 Mbits/sec
[ 2] 90.00-95.00 sec 533 MBytes 894 Mbits/sec
[ 2] 95.00-100.00 sec 523 MBytes 877 Mbits/sec
[ 2] 100.00-105.00 sec 545 MBytes 915 Mbits/sec
[ 2] 105.00-110.00 sec 545 MBytes 914 Mbits/sec
[ 2] 110.00-115.00 sec 548 MBytes 919 Mbits/sec
[ 2] 115.00-120.00 sec 546 MBytes 916 Mbits/sec
[ 2] 120.00-125.00 sec 548 MBytes 919 Mbits/sec
[ 2] 125.00-130.00 sec 547 MBytes 917 Mbits/sec
[ 2] 130.00-135.00 sec 544 MBytes 912 Mbits/sec
[ 2] 135.00-140.00 sec 548 MBytes 919 Mbits/sec
[ 2] 140.00-145.00 sec 546 MBytes 916 Mbits/sec
[ 2] 145.00-150.00 sec 544 MBytes 913 Mbits/sec
[ 2] 150.00-155.00 sec 543 MBytes 910 Mbits/sec
[ 2] 155.00-160.00 sec 546 MBytes 915 Mbits/sec
[ 2] 160.00-165.00 sec 541 MBytes 908 Mbits/sec
[ 2] 165.00-170.00 sec 545 MBytes 914 Mbits/sec
[ 2] 170.00-175.00 sec 545 MBytes 915 Mbits/sec
[ 2] 175.00-180.00 sec 545 MBytes 914 Mbits/sec