DPDK系列之二：pktgen-dpdk向testpmd发送数据的测试

r囧r小猫 2022-05-24 01:49 929阅读 0赞

**一、前言**

pktgen-dpdk是用于对DPDK进行高速数据包测试的工具，本文将介绍如何编译以及使用pktgen。

转载自https://blog.csdn.net/cloudvtech

**二、编译pktgen-dpdk**

2.1 版本信息：

OS: CentOS 7.2.1511 
    DPDK: dpdk-stable-17.08.1 (https://fast.dpdk.org/rel/dpdk-17.08.1.tar.xz)
    PKTGEN: pktgen-3.4.2 (http://dpdk.org/browse/apps/pktgen-dpdk/snapshot/pktgen-3.4.2.tar.gz)

下载

wget http://dpdk.org/browse/apps/pktgen-dpdk/snapshot/pktgen-3.4.2.tar.gz
    tar -zxvf pktgen-3.4.2.tar.gz
    cd pktgen-3.4.2

编译

export RTE_SDK=/root/dpdk-stable-17.08.1
    export RTE_TARGET=x86_64-native-linuxapp-gcc
    
    make
    and the binary is at app/x86_64-native-linuxapp-gcc/pktgen

2.2 试运行

VM配置为4个core、4GB内存

# core 0 as master, 1 and 2 as slave
    ./app/x86_64-native-linuxapp-gcc/pktgen -l 0-2 -n 3 -- -P -m "[1].0, [2].1"

![70][]

转载自https://blog.csdn.net/cloudvtech

**三、pktgen send packet to testpmd, 1 DPDK NIC in promiscuous mode**

3.1 测试环境

两个虚拟机VM1和VM2，每个虚拟机两个网卡，一个给DPDK用，一个给管理用。

VM1: pktgen(port 0 send out) -> VM2: testpmd(port 0 rxonly)

3.2 虚拟机VM1上面的配置运行pktgen

IP: 192.168.166.131
    DPDK NIC ens34: 00:0c:29:3d:d7:10

运行pktgen

cd dpdk-stable-17.08.1
    echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
    
    modprobe uio_pci_generic
    modprobe uio
    modprobe vfio-pci
    insmod build/kmod/igb_uio.ko 
    
    ifconfig ens34 down 
    
    ./usertools/dpdk-devbind.py --bind=igb_uio  02:02.0

# run pktgen
    cd ../pktgen-3.4.2
    ./app/x86_64-native-linuxapp-gcc/pktgen -l 0-1 -n 3 -- -P -m "[1].0"
    set 0 dst mac 00:0C:29:D0:46:4C
    set 0 count 100000
    str

\# run pktgen

cd ../pktgen-3.4.2

./app/x86\_64-native-linuxapp-gcc/pktgen -l 0-1 -n 3 -- -P -m "\[1\].0"

set 0 dst mac 00:0C:29:D0:46:4C

set 0 count 100000

str

![70 1][]

# test with 10000000
    set 0 dst mac 00:0C:29:D0:46:4C
    set 0 count 10000000
    str

![70 2][]

3.3 虚拟机VM2上面的配置运行testpmd

IP: 192.168.166.131
    DPDK NIC ens34: 00:0c:29:d0:46:4c

#setup
    cd dpdk-stable-17.08.1
    echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
    
    modprobe uio_pci_generic
    modprobe uio
    modprobe vfio-pci
    insmod build/kmod/igb_uio.ko 
    
    ifconfig ens34 down 
    
    ./usertools/dpdk-devbind.py --bind=igb_uio  02:02.0 
    
    # run testpmd
    cd dpdk-stable-17.08.1
    ./build/app/testpmd -l 0-1 -n 1  -- -i
    set fwd rxonly
    show port stats all
    clear port stats all
    start

![70 3][]

\# test with 10000000

![70 4][]

![70 5][]

转载自https://blog.csdn.net/cloudvtech

**四、pktgen send packet to testpmd, 1 DPDK NIC no promiscuous mode**

4.1 测试环境与上一节描述的类似

4.2 VM1上面运行pktgen

IP: 192.168.166.131
    DPDK NIC ens34: 00:0c:29:3d:d7:10
    
    # setups
    1. huge memory
    2. uio kernel module
    3. bind NIC to DPDK
    
    # run pktgen
    cd ../pktgen-3.4.2
    ./app/x86_64-native-linuxapp-gcc/pktgen -l 0-1 -n 3 -- -P -m "[1].0"
    set 0 dst mac 00:0C:29:D0:46:4C
    set 0 count 1000000
    set 0 rate 1
    str

![70 6][]

4.3 VM2上面的设置

IP: 192.168.166.131
    DPDK NIC ens34: 00:0c:29:d0:46:4c
    
    # setups
    1. huge memory
    2. uio kernel module
    3. bind NIC to DPDK
    
    # run testpmd
    cd dpdk-stable-17.08.1
    ./build/app/testpmd -l 0-1 -n 1  -- -i

select do not enable promiscuous mode

![70 7][]

set fwd rxonly
    show port stats all
    clear port stats all
    start

![70 8][]

转载自https://blog.csdn.net/cloudvtech

[70]: /images/20220524/5b78a01642c04fa39d94d98ae82de2eb.png
[70 1]: /images/20220524/b3ca9498bb454452934c0c0c78e2ec97.png
[70 2]: /images/20220524/1a9fe7792bb347cdbb6db0050ea1677d.png
[70 3]: /images/20220524/dc0e847df25c484eb5ddd44becd01d64.png
[70 4]: /images/20220524/f78e7e8870bf49d6b79d101703c6a4c3.png
[70 5]: /images/20220524/70b994dae721484e9eab1343df566fea.png
[70 6]: /images/20220524/1b5243e4e86c453bb6ae8d3d3e08a25b.png
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