Xilinx 7 Series万兆网IP使用

匿名 (未验证) 提交于 2019-12-03 00:05:01

方法

万兆网IP,axi-dma,axi-pcie-bridge,搭建一个基于FPGA的万兆网卡,移植petalinux-2015.2.1的驱动到Ubuntu16.04.6上,测试结果如下,

qe@qe-pc:~/project$ ./iperf3 -s ----------------------------------------------------------- Server listening on 5201 ----------------------------------------------------------- Accepted connection from 192.168.10.6, port 6668 [  5] local 192.168.10.8 port 5201 connected to 192.168.10.6 port 6669 [ ID] Interval           Transfer     Bandwidth [  5]   0.00-1.00   sec   231 MBytes  1.93 Gbits/sec                   [  5]   1.00-2.00   sec   235 MBytes  1.97 Gbits/sec                   [  5]   2.00-3.00   sec   233 MBytes  1.96 Gbits/sec                   [  5]   3.00-4.00   sec   236 MBytes  1.98 Gbits/sec                   [  5]   4.00-5.00   sec   232 MBytes  1.94 Gbits/sec                   [  5]   5.00-6.00   sec   232 MBytes  1.95 Gbits/sec                   [  5]   6.00-7.00   sec   232 MBytes  1.95 Gbits/sec                   [  5]   7.00-8.00   sec   232 MBytes  1.95 Gbits/sec                   [  5]   8.00-9.00   sec   240 MBytes  2.01 Gbits/sec                   [  5]   9.00-10.00  sec   239 MBytes  2.00 Gbits/sec                   [  5]  10.00-10.04  sec  8.53 MBytes  2.01 Gbits/sec                   - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval           Transfer     Bandwidth [  5]   0.00-10.04  sec  0.00 Bytes  0.00 bits/sec                  sender [  5]   0.00-10.04  sec  2.30 GBytes  1.96 Gbits/sec                  receiver ----------------------------------------------------------- Server listening on 5201 ----------------------------------------------------------- iperf3: interrupt - the server has terminated qe@qe-pc:~/project$ ./iperf3 -c 192.168.10.6 -w 4M Connecting to host 192.168.10.6, port 5201 [  4] local 192.168.10.8 port 37564 connected to 192.168.10.6 port 5201 [ ID] Interval           Transfer     Bandwidth       Retr  Cwnd [  4]   0.00-1.00   sec  37.3 MBytes   313 Mbits/sec    0   28.5 KBytes        [  4]   1.00-2.00   sec  36.9 MBytes   310 Mbits/sec    0   28.5 KBytes        [  4]   2.00-3.00   sec  36.9 MBytes   310 Mbits/sec    0   28.5 KBytes        [  4]   3.00-4.00   sec  36.9 MBytes   309 Mbits/sec    0   28.5 KBytes        [  4]   4.00-5.00   sec  36.9 MBytes   310 Mbits/sec    0   28.5 KBytes        [  4]   5.00-6.00   sec  36.9 MBytes   310 Mbits/sec    0   28.5 KBytes        [  4]   6.00-7.00   sec  36.9 MBytes   310 Mbits/sec    0   28.5 KBytes        [  4]   7.00-8.00   sec  36.9 MBytes   310 Mbits/sec    0   28.5 KBytes        [  4]   8.00-9.00   sec  36.9 MBytes   309 Mbits/sec    0   28.5 KBytes        [  4]   9.00-10.00  sec  36.9 MBytes   310 Mbits/sec    0   28.5 KBytes        - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval           Transfer     Bandwidth       Retr [  4]   0.00-10.00  sec   370 MBytes   310 Mbits/sec    0             sender [  4]   0.00-10.00  sec   369 MBytes   310 Mbits/sec                  receiver  iperf Done.

参考我的博文,发送速度还不如一个zynq(80MB/s左右),原因是驱动没有优化,每发送一个包都需要中断响应一次,中断还要透过pcie msi传输,所以效率低,接收采用了napi,所以性能相比zynq有所提高,但是还是不太理想,需要进一步采用FPGA硬件加速。

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