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<p>前后弄了一个多月，总算弄出来了Docker + OpenvSwitch +
dpdk的VNF实验环境。</p>
<span id="more"></span>
<h1 id="可用版本">可用版本</h1>
<ul>
<li>Ubuntu kernel版本 4.4.0-131-generic</li>
<li>ubuntu系统版本16.04.5</li>
<li>dpdk版本16.11.1</li>
<li>openvswitch版本2.6.1</li>
<li>pktgen版本3.1.1</li>
</ul>
<h1 id="clear.sh">clear.sh</h1>
<p>防止冲突，先把一些设置清空</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">sudo rm /usr/local/etc/openvswitch/*</span><br><span class="line">sudo rm /usr/local/var/run/openvswitch/*</span><br><span class="line">sudo rm /usr/local/var/log/openvswitch/ovs-vswitchd.log</span><br></pre></td></tr></table></figure>
<h1 id="拓扑结构">拓扑结构</h1>
<p>大致的结构是这样的</p>
<p><img src="/img/2018-8-17-1.jpg" /></p>
<h1 id="dpdk安装">dpdk安装</h1>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br></pre></td><td class="code"><pre><span class="line">wget http://fast.dpdk.org/rel/dpdk-16.11.1.tar.xz</span><br><span class="line">tar xf dpdk-16.11.1.tar.xz</span><br><span class="line">cd dpdk-stable-16.11.1</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">设置DPDK库目录位置</span></span><br><span class="line">echo export RTE_SDK=$(pwd) >> ~/.bashrc</span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">设置DPDK目标环境</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">注意！这里的x86_64-native-linuxapp-gcc应替换为实际运行环境</span></span><br><span class="line">echo export RTE_TARGET=x86_64-native-linuxapp-gcc >> ~/.bashrc</span><br><span class="line">source ~/.bashrc</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">配置DPDK,需要使用Vhost-user驱动，需要将CONFIG_RTE_LIBRTE_VHOST=y</span></span><br><span class="line">vim config/common_base</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">安装dpdk</span></span><br><span class="line">make config T=$RTE_TARGET</span><br><span class="line">make T=$RTE_TARGET -j8</span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">install是必须的！原博客就没有install</span></span><br><span class="line">make install T=$RTE_TARGET -j8</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">可以编译l2fwd来看一下</span></span><br><span class="line">cd examples/l2fwd/</span><br><span class="line">make </span><br></pre></td></tr></table></figure>
<h1 id="hugepage配置">Hugepage配置</h1>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line">sudo vim /etc/default/grub</span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">找到其中一项为 GRUB_CMDLINE_LINUX_DEFAULT= ，不论后面的引号内包含任何内容，在原本内容之后添加 default_hugepagesz=1GB hugepagesz=1G hugepages=8（这里分配了8个1G的hugepages）</span></span><br><span class="line">sudo update-grub</span><br><span class="line">sudo reboot</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">查看分配情况</span></span><br><span class="line">grep Huge /proc/meminfo</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">分配成功后进行挂载</span></span><br><span class="line">sudo mkdir -p /dev/hugepages</span><br><span class="line">sudo mount -t hugetlbfs none /dev/hugepages</span><br><span class="line">sudo mkdir -p /mnt/huge</span><br><span class="line">sudo mount -t hugetlbfs -o pagesize=1G none /mnt/huge</span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">注：在服务器上是已经配置好了mount到了/mnt/huge_1GB上，所以并没有执行上面的操作</span></span><br></pre></td></tr></table></figure>
<h1 id="pktgen安装">pktgen安装</h1>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta prompt_">#</span><span class="language-bash">某个版本第一次安装会失败，这个版本不会</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">然而可以知道好像是多make几次就会好(从Clayne Robison写的注释来看)</span></span><br><span class="line">sudo apt install libpcap-dev</span><br><span class="line">wget http://dpdk.org/browse/apps/pktgen-dpdk/snapshot/pktgen-dpdk-pktgen-3.1.1.tar.gz</span><br><span class="line">tar xzf pktgen-dpdk-pktgen-3.1.1.tar.gz</span><br><span class="line">cd pktgen-dpdk-pktgen-3.1.1</span><br><span class="line">make -j8</span><br><span class="line">ln -s $(pwd)/app/$RTE_TARGET/pktgen /usr/bin/pktgen</span><br></pre></td></tr></table></figure>
<h1 id="ovs安装与配置">OvS安装与配置</h1>
<h2 id="ovs安装">OvS安装</h2>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta prompt_">#</span><span class="language-bash">创建必要目录</span></span><br><span class="line">mkdir -p /usr/local/etc/openvswitch</span><br><span class="line">mkdir -p /usr/local/var/run/openvswitch</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">下载</span></span><br><span class="line">wget http://openvswitch.org/releases/openvswitch-2.6.1.tar.gz</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">解压</span></span><br><span class="line">tar xzvf openvswitch-2.6.1.tar.gz</span><br><span class="line">cd openvswitch-2.6.1</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">配置环境并安装</span></span><br><span class="line">./boot.sh</span><br><span class="line">CFLAGS='-march=native' ./configure --with-dpdk=$RTE_SDK/$RTE_TARGET</span><br><span class="line"></span><br><span class="line">make -j8</span><br><span class="line">sudo make install -j8</span><br></pre></td></tr></table></figure>
<h2 id="启动ovs">启动OvS</h2>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta prompt_">#</span><span class="language-bash">此时在openvswitch-2.6.1目录下</span></span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">init new ovs database</span></span><br><span class="line">sudo ovsdb-tool create /usr/local/etc/openvswitch/conf.db ./vswitchd/vswitch.ovsschema</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">start database server</span></span><br><span class="line">sudo ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/db.sock \</span><br><span class="line">--remote=db:Open_vSwitch,Open_vSwitch,manager_options \</span><br><span class="line">--pidfile --detach</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">initializing the OVS database<span class="string">"</span></span></span><br><span class="line">sudo ovs-vsctl --no-wait init</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">configure ovs dpdk</span></span></span><br><span class="line">sudo ovs-vsctl --no-wait set Open_vSwitch . other_config:dpdk-init=true \</span><br><span class="line">other_config:dpdk-lcore-mask=0x00f0f0 other_config:dpdk-socket-mem="1024,1024"</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">start ovs</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">--log-file指定了守护进程ovs-vswitchd的log位置</span></span></span><br><span class="line">sudo ovs-vswitchd unix:/usr/local/var/run/openvswitch/db.sock --log-file=/usr/local/var/log/openvswitch/ovs-vswitchd.log --pidfile --detach</span><br></pre></td></tr></table></figure>
<p>其中一些选项的说明如下</p>
<ul>
<li>dpdk-init
<ul>
<li>Specifies whether OVS should initialize and support DPDK ports. This
field can either be <code>true</code> or <code>try</code>. A value of
<code>true</code> will cause the ovs-vswitchd process to abort on
initialization failure. A value of <code>try</code> will imply that the
ovs-vswitchd process should continue running even if the EAL
initialization fails.</li>
</ul></li>
<li>dpdk-lcore-mask
<ul>
<li>Specifies the CPU cores on which dpdk lcore threads should be
spawned and expects hex string (eg ‘0x123’).</li>
</ul></li>
<li>dpdk-socket-mem
<ul>
<li>Comma separated list of memory to pre-allocate from hugepages on
specific sockets. If not specified, 1024 MB will be set for each numa
node by default.上面的是"1024,1024"，是因为机器有两个numa
node，如果只有一个就是"1024"</li>
</ul></li>
<li>dpdk-hugepage-dir
<ul>
<li>Directory where hugetlbfs is mounted</li>
</ul></li>
<li>vhost-sock-dir
<ul>
<li>Option to set the path to the vhost-user unix socket files.</li>
</ul></li>
</ul>
<h2 id="创建ovs-port">创建OvS port</h2>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta prompt_">#</span><span class="language-bash">ovs use core 2 <span class="keyword">for</span> the PMD</span></span><br><span class="line">sudo ovs-vsctl set Open_vSwitch . other_config:pmd-cpu-mask=0x0f0f00</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">create br0 and vhost ports <span class="built_in">which</span> use dpdk</span></span><br><span class="line">sudo ovs-vsctl add-br br0 -- set bridge br0 datapath_type=netdev</span><br><span class="line">sudo ovs-vsctl add-port br0 vhost-user1 -- set Interface vhost-user1 type=dpdkvhostuser</span><br><span class="line">sudo ovs-vsctl add-port br0 vhost-user2 -- set Interface vhost-user2 type=dpdkvhostuser</span><br><span class="line">sudo ovs-vsctl add-port br0 vhost-user3 -- set Interface vhost-user3 type=dpdkvhostuser</span><br><span class="line">sudo ovs-vsctl add-port br0 vhost-user4 -- set Interface vhost-user4 type=dpdkvhostuser</span><br></pre></td></tr></table></figure>
<h2 id="增加流表">增加流表</h2>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta prompt_">#</span><span class="language-bash">清理之前可能残存的流表</span></span><br><span class="line">sudo ./utilities/ovs-ofctl del-flows br0</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_"># </span><span class="language-bash">2 <-> 3之间流量</span></span><br><span class="line">sudo ./utilities/ovs-ofctl add-flow br0 in_port=2,dl_type=0x800,idle_timeout=0,action=output:3</span><br><span class="line">sudo ./utilities/ovs-ofctl add-flow br0 in_port=3,dl_type=0x800,idle_timeout=0,action=output:2</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_"># </span><span class="language-bash">1 <-> 4之间流量</span></span><br><span class="line">sudo ./utilities/ovs-ofctl add-flow br0 in_port=1,dl_type=0x800,idle_timeout=0,action=output:4</span><br><span class="line">sudo ./utilities/ovs-ofctl add-flow br0 in_port=4,dl_type=0x800,idle_timeout=0,action=output:1</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">show current flows</span></span><br><span class="line">sudo ./utilities/ovs-ofctl dump-flows br0</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">showing vhost-user sockets <span class="keyword">in</span> /usr/local/var/run/openvswitch</span></span><br><span class="line">sudo ls -la /usr/local/var/run/openvswitch | grep vhost-user</span><br></pre></td></tr></table></figure>
<p>OvS从这里就已经配置好了，接下来建立Docker container</p>
<h1 id="创建testpmd-container和pktgen-container">创建testpmd
container和pktgen container</h1>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta prompt_">#</span><span class="language-bash">testpmd container</span></span><br><span class="line">cd $RTE_SDK/../</span><br><span class="line"></span><br><span class="line">vim Dockerfile</span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">Dockerfile内容如下</span></span><br><span class="line">FROM ubuntu:16.04</span><br><span class="line">RUN apt-get update -y</span><br><span class="line">RUN apt-get install -y numactl</span><br><span class="line">WORKDIR /root/dpdk</span><br><span class="line">COPY dpdk-stable-16.11.1 /root/dpdk/.</span><br><span class="line">ENV PATH "$PATH:/root/dpdk/x86_64-native-linuxapp-gcc/app/"</span><br><span class="line"></span><br><span class="line">sudo docker build -t dpdk-docker:17.05 .</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">这里进的实际上是一个目录，因为我放到一起了，所以两个Dockerfile会重名，把上一个build完之后改名就好了</span></span><br><span class="line">cd pktgen-3.4.2/..</span><br><span class="line">vim Dockerfile</span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">Dockerfile内容如下</span></span><br><span class="line">FROM ubuntu:16.04</span><br><span class="line">RUN apt-get update -y</span><br><span class="line">RUN apt-get install -y numactl libpcap-dev</span><br><span class="line">WORKDIR /root/dpdk</span><br><span class="line">COPY dpdk-stable-16.11.1 /root/dpdk/.</span><br><span class="line">COPY pktgen-dpdk-pktgen-3.1.1 /root/pktgen/.</span><br><span class="line">RUN ln -s /root/pktgen/app/x86_64-native-linuxapp-gcc/pktgen /usr/bin/pktgen</span><br><span class="line">RUN ln -s /usr/lib/x86_64-linux-gnu/libpcap.so /usr/lib/x86_64-linux-gnu/libpcap.so.1</span><br><span class="line">ENV PATH "$PATH:/root/dpdk/x86_64-native-linuxapp-gcc/app/"</span><br><span class="line"></span><br><span class="line">sudo docker build -t pktgen-docker .</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">可以查看docker image</span></span><br><span class="line">sudo docker images</span><br></pre></td></tr></table></figure>
<h1 id="启动docker">启动Docker</h1>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta prompt_">#</span><span class="language-bash">启动pktgen-docker</span></span><br><span class="line">sudo docker run -ti --rm --privileged --name=pktgen-docker -v /mnt/huge_1GB:/mnt/huge -v /usr/local/var/run/openvswitch:/var/run/openvswitch pktgen-docker:latest</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">pktgen应该在pktgen目录下运行，即有Pktgen.lua的目录下运行</span></span><br><span class="line">cd ../pktgen</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">在Docker中运行pktgen</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">参数我就没改了</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">-c 0x19: DPDK can run on core 0,3-4: (0b0001 1001)</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">--master-lcore 3: make the pktgen dpdk thread run on core 3 (0b1000)</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">-n 1: we only have one memory bank <span class="keyword">in</span> this VM</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">--file-prefix pktgen: <span class="string">"pktgen"</span> will be appended to hugepage memory files used by this process</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">--no-pci don<span class="string">'t look for any PCI devices</span></span> </span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">--vdev '</span>virtio_user1,mac=00:00:00:00:00:01,path=/var/run/openvswitch/vhost-user1<span class="string">'</span></span> </span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">--vdev '</span>virtio_user2,mac=00:00:00:00:00:02,path=/var/run/openvswitch/vhost-user2<span class="string">'</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">-P: Promiscuous mode</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">-T: Color terminal output</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">-m "0.0,4.1" (core.port): core 0: port 0 rx/tx; core 4: port 1 rx/tx</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">注：-m选项一定要和前面dpdk的-c选项符合</span></span></span><br><span class="line">./app/app/x86_64-native-linuxapp-gcc/pktgen -c 0x19 --master-lcore 3 -n 1 --socket-mem 1024,1024 --file-prefix pktgen --no-pci \</span><br><span class="line">--vdev 'net_virtio_user1,mac=00:00:00:00:00:01,path=/var/run/openvswitch/vhost-user1' \</span><br><span class="line">--vdev 'net_virtio_user2,mac=00:00:00:00:00:02,path=/var/run/openvswitch/vhost-user2' \</span><br><span class="line">-- -T -P -m "0.0,4.1"</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">启动dpdk-docker</span></span></span><br><span class="line">sudo docker run -it --rm --privileged --name=dpdk-docker \</span><br><span class="line">-v /mnt/huge_1GB:/mnt/huge -v /usr/local/var/run/openvswitch:/var/run/openvswitch \</span><br><span class="line">dpdk-docker:17.05</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">在Docker中运行dpdk</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">-c 0xE0: DPDK can run on core 5-7: (0b1110 0000)</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">--master-lcore 5: make the make the master testpmd thread run on core 5 (0b0010 0000)</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">-n 1: we only have one memory bank in this VM</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">--file-prefix testpmd: "testpmd" will be appended to hugepage memory files used by this process</span></span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"><span class="string">--no-pci don'</span>t look <span class="keyword">for</span> any PCI devices</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">--vdev=net_virtio_user3,mac=00:00:00:00:00:03,path=/var/run/openvswitch/vhost-user3</span></span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash">--vdev=net_virtio_user4,mac=00:00:00:00:00:04,path=/var/run/openvswitch/vhost-user4:</span> </span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"> use a virtual</span> </span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"> device using the net_virtio_user driver, MAC address 00:00:00:00:00:03, and the path to the</span> </span><br><span class="line"><span class="meta prompt_">#</span><span class="language-bash"> unix socket is /var/run/openvswitch/vhost-user3</span></span><br><span class="line">testpmd -c 0xE0 -n 1 --socket-mem 1024,1024 --file-prefix testpmd --no-pci \</span><br><span class="line">--vdev 'net_virtio_user3,mac=00:00:00:00:00:03,path=/var/run/openvswitch/vhost-user3' \</span><br><span class="line">--vdev 'net_virtio_user4,mac=00:00:00:00:00:04,path=/var/run/openvswitch/vhost-user4' \</span><br><span class="line">-- -i --burst=64 --disable-hw-vlan --txd=2048 --rxd=2048 --auto-start --coremask=0xc0</span><br></pre></td></tr></table></figure>
<h1 id="最后结果">最后结果</h1>
<p>pktgen上显示结果</p>
<p><img src="/img/2018-8-19-1.jpg" /></p>
<p>testpmd上显示结果</p>
<p><img src="/img/2018-8-19-2.jpg" /></p>
<p>配置显示结果</p>
<p><img src="/img/2018-8-19-3.jpg" /></p>
<h1 id="踩坑实录">踩坑实录</h1>
<ul>
<li><p>因为不是在虚拟机上跑，没有打2M
-singlefile的patch，所以选项改了一下</p></li>
<li><p>理论上dpdk的选项<code>--socket-mem</code>和<code>-m</code>应该都是可以的，然而在我mac上的vagrant开起来的虚拟机上，<code>--socket-mem</code>居然不行。</p></li>
<li><p>脱离版本的配置十分痛苦。</p></li>
<li><p>出现过ovs在add port的时候后报错，事实证明有了log
file之后就好调多了</p>
<ul>
<li>could not add network device vhost-user0 to ofproto (No such
device).猜测可能是某个东西和linux
kernel版本不兼容，因为换了内核就没再出现过了。当时的解决方法是先添加，再删除，再添加。然而最后因为没有产生traffic，所以不知道这种方法是否是对的。</li>
<li>could not allocate
memery。大概是这个错误。是因为我开启ovs-vswitchd的时候，设置的socket
memory是“1024”，而机器有两个numa node，另外一个就没有memory分配了。</li>
</ul></li>
<li><p>没有traffic的情况</p>
<ul>
<li>有可能是numa的pmd的core分配不对，导致有的socket没有可用的pmd
thread</li>
<li>有可能是dpdk的-c设置和testpmd或者pktgen的coremask设置不统一，即coremask使用到的内核并不在-c设置的内核中。</li>
</ul></li>
</ul>
<h1 id="参考资料">参考资料</h1>
<ul>
<li>https://github.com/intel/SDN-NFV-Hands-on-Samples/tree/master/DPDK_in_Containers_Hands-on_Lab/dpdk-container-lab</li>
<li>https://www.youtube.com/watch?v=hEmvd7ZjkFw&index=1&list=PLg-UKERBljNx44Q68QfQcYsza-fV0ARbp</li>
<li>https://blog.csdn.net/me_blue/article/details/78589592</li>
<li>http://blog.sina.com.cn/s/blog_da4487c40102v2ic.html</li>
<li>http://docs.openvswitch.org/en/latest/intro/install/dpdk/</li>
<li>其他的具体错误都是搜索谷歌解决</li>
<li>以及--log-file的问题是咨询学长解决</li>
</ul>
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<div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-1"><a class="nav-link" href="#%E5%8F%AF%E7%94%A8%E7%89%88%E6%9C%AC"><span class="nav-number">1.</span> <span class="nav-text">可用版本</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#clear.sh"><span class="nav-number">2.</span> <span class="nav-text">clear.sh</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#%E6%8B%93%E6%89%91%E7%BB%93%E6%9E%84"><span class="nav-number">3.</span> <span class="nav-text">拓扑结构</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#dpdk%E5%AE%89%E8%A3%85"><span class="nav-number">4.</span> <span class="nav-text">dpdk安装</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#hugepage%E9%85%8D%E7%BD%AE"><span class="nav-number">5.</span> <span class="nav-text">Hugepage配置</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#pktgen%E5%AE%89%E8%A3%85"><span class="nav-number">6.</span> <span class="nav-text">pktgen安装</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#ovs%E5%AE%89%E8%A3%85%E4%B8%8E%E9%85%8D%E7%BD%AE"><span class="nav-number">7.</span> <span class="nav-text">OvS安装与配置</span></a><ol class="nav-child"><li class="nav-item nav-level-2"><a class="nav-link" href="#ovs%E5%AE%89%E8%A3%85"><span class="nav-number">7.1.</span> <span class="nav-text">OvS安装</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#%E5%90%AF%E5%8A%A8ovs"><span class="nav-number">7.2.</span> <span class="nav-text">启动OvS</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#%E5%88%9B%E5%BB%BAovs-port"><span class="nav-number">7.3.</span> <span class="nav-text">创建OvS port</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#%E5%A2%9E%E5%8A%A0%E6%B5%81%E8%A1%A8"><span class="nav-number">7.4.</span> <span class="nav-text">增加流表</span></a></li></ol></li><li class="nav-item nav-level-1"><a class="nav-link" href="#%E5%88%9B%E5%BB%BAtestpmd-container%E5%92%8Cpktgen-container"><span class="nav-number">8.</span> <span class="nav-text">创建testpmd
container和pktgen container</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#%E5%90%AF%E5%8A%A8docker"><span class="nav-number">9.</span> <span class="nav-text">启动Docker</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#%E6%9C%80%E5%90%8E%E7%BB%93%E6%9E%9C"><span class="nav-number">10.</span> <span class="nav-text">最后结果</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#%E8%B8%A9%E5%9D%91%E5%AE%9E%E5%BD%95"><span class="nav-number">11.</span> <span class="nav-text">踩坑实录</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#%E5%8F%82%E8%80%83%E8%B5%84%E6%96%99"><span class="nav-number">12.</span> <span class="nav-text">参考资料</span></a></li></ol></div>
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