FPGA搭建Linux系统下的PCIe模块硬盘读写系统：使用XC7Z100 FPGA实现NVMe协议与PCIe接口通信,FPGA搭建NVMe硬盘读写系统：基于XC7Z100的Linux系统PCIe模块
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FPGA搭建Linux系统下的PCIe模块硬盘读写系统：使用XC7Z100 FPGA实现NVMe协议与PCIe接口通信,FPGA搭建NVMe硬盘读写系统：基于XC7Z100的Linux系统PCIe模块操作硬盘实践图片展示,FPGA搭建nvme读写硬盘系统。cpu通过pcie模块操作硬盘读写。图片是sdk下面枚举到硬盘过程中的打印。FPGA用的是xc7z100，ps跑的Linux，pl用pciex1接到硬盘（x4也可以的）,FPGA; NVMe读写; PCIe模块操作; XC7Z100; Linux系统; PL用PCIEx1连接硬盘,FPGA搭建PCIe模块驱动NVMe硬盘读写系统（XC7Z100，PL配合x4接口） <link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90427208/2/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90427208/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">FPGA<span class="_ _0"> </span><span class="ff2">与<span class="_ _0"> </span></span>NVMe<span class="_"> </span><span class="ff2">读写硬盘系统的搭建实践</span></div><div class="t m0 x1 h2 y2 ff2 fs0 fc0 sc0 ls0 ws0">随着技术的<span class="_ _1"></span>飞速发展，<span class="_ _1"></span><span class="ff1">FPGA</span>（现场可<span class="_ _1"></span>编程门阵列<span class="_ _1"></span>）已成为计<span class="_ _1"></span>算机科学中<span class="_ _1"></span>重要的数据<span class="_ _1"></span>处理和</div><div class="t m0 x1 h2 y3 ff2 fs0 fc0 sc0 ls0 ws0">操作平台。尤其是在数据密集型任务中，<span class="_ _2"></span>如硬盘的读写操作，<span class="ff1">FPGA<span class="_ _0"> </span></span>能够展现出其强大的性</div><div class="t m0 x1 h2 y4 ff2 fs0 fc0 sc0 ls0 ws0">能优势。本文<span class="_ _1"></span>将介绍如何使<span class="_ _1"></span>用<span class="_ _0"> </span><span class="ff1">FPGA<span class="_"> </span></span>搭建一个<span class="_ _0"> </span><span class="ff1">NVMe<span class="_"> </span></span>读写硬盘系统，并详<span class="_ _1"></span>细阐述<span class="_ _0"> </span><span class="ff1">CPU<span class="_"> </span></span>如何</div><div class="t m0 x1 h2 y5 ff2 fs0 fc0 sc0 ls0 ws0">通<span class="_ _1"></span>过<span class="_ _3"> </span><span class="ff1">PCIe<span class="_"> </span></span>模<span class="_ _1"></span>块<span class="_ _4"></span>进<span class="_ _1"></span>行<span class="_ _1"></span>硬<span class="_ _4"></span>盘<span class="_ _1"></span>的<span class="_ _1"></span>读<span class="_ _4"></span>写<span class="_ _1"></span>操<span class="_ _1"></span>作<span class="_ _1"></span>，<span class="_ _4"></span>并<span class="_ _1"></span>在<span class="_ _1"></span>此<span class="_ _4"></span>过<span class="_ _1"></span>程<span class="_ _1"></span>中<span class="_ _4"></span>如<span class="_ _1"></span>何<span class="_ _1"></span>借<span class="_ _1"></span>助<span class="_ _3"> </span><span class="ff1">XC7Z100<span class="_ _3"> </span></span>的<span class="_ _3"> </span><span class="ff1">FPGA<span class="_"> </span></span>及<span class="_ _3"> </span><span class="ff1">PL<span class="_"> </span></span>用</div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">PCIeX1<span class="_ _0"> </span><span class="ff2">连接至硬盘的解决方案。</span></div><div class="t m0 x1 h2 y7 ff2 fs0 fc0 sc0 ls0 ws0">一、<span class="ff1">NVMe<span class="_ _0"> </span></span>硬盘系统简介</div><div class="t m0 x1 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">NVMe<span class="ff2">（</span>Non-Volatile Memory Express<span class="ff2">）是一种用于访问固态存储设备的接口协议。<span class="_ _2"></span>它具有</span></div><div class="t m0 x1 h2 y9 ff2 fs0 fc0 sc0 ls0 ws0">高带宽和低延迟的特点，使得在高性能计算环境中进行大量数据传输成为可能。</div><div class="t m0 x1 h2 ya ff2 fs0 fc0 sc0 ls0 ws0">二、<span class="ff1">FPGA<span class="_ _0"> </span></span>与<span class="_ _0"> </span><span class="ff1">NVMe<span class="_"> </span></span>硬盘系统的搭建</div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">1. <span class="_ _0"> </span><span class="ff2">硬件准备<span class="_ _5"></span>：<span class="_ _5"></span>选用<span class="_ _6"> </span><span class="ff1">XC7Z100 FPGA<span class="_ _0"> </span></span>芯片，<span class="_ _7"></span>并采用<span class="_ _0"> </span><span class="ff1">PS</span>（处理系统）<span class="_ _7"></span>运行<span class="_ _0"> </span><span class="ff1">Linux<span class="_"> </span></span>操作系统。<span class="_ _7"></span>在<span class="_ _0"> </span><span class="ff1">PL</span></span></div><div class="t m0 x1 h2 yc ff2 fs0 fc0 sc0 ls0 ws0">（可编程逻辑）<span class="_ _8"></span>部分，<span class="_ _8"></span>我们使用<span class="_ _0"> </span><span class="ff1">PCIeX1<span class="_ _0"> </span></span>接口来连接<span class="_ _0"> </span><span class="ff1">NVMe<span class="_"> </span></span>硬盘。<span class="_ _7"></span>当然，<span class="_ _8"></span><span class="ff1">PCIeX4<span class="_"> </span><span class="ff2">也是可用的</span></span></div><div class="t m0 x1 h2 yd ff2 fs0 fc0 sc0 ls0 ws0">接口规格，可以根据实际需求进行选择。</div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">2. <span class="_ _0"> </span><span class="ff2">系统架构：</span>FPGA<span class="_ _0"> </span><span class="ff2">作为主控制器，负责与<span class="_ _0"> </span></span>NVMe<span class="_"> </span><span class="ff2">硬盘进行通信和数据传输。通过<span class="_ _0"> </span></span>PCIe<span class="_"> </span><span class="ff2">模</span></div><div class="t m0 x1 h2 yf ff2 fs0 fc0 sc0 ls0 ws0">块，<span class="ff1">CPU<span class="_ _0"> </span></span>可以与<span class="_ _0"> </span><span class="ff1">FPGA<span class="_"> </span></span>进行数据交换，进而实现对<span class="_ _0"> </span><span class="ff1">NVMe<span class="_ _0"> </span></span>硬盘的读写操作。</div><div class="t m0 x1 h2 y10 ff2 fs0 fc0 sc0 ls0 ws0">三、<span class="ff1">CPU<span class="_ _0"> </span></span>通过<span class="_ _0"> </span><span class="ff1">PCIe<span class="_"> </span></span>模块操作硬盘读写</div><div class="t m0 x1 h2 y11 ff1 fs0 fc0 sc0 ls0 ws0">1. PCIe<span class="_ _0"> </span><span class="ff2">通信：</span>CPU<span class="_ _0"> </span><span class="ff2">通过<span class="_ _0"> </span></span>PCIe<span class="_ _0"> </span><span class="ff2">总线与<span class="_ _0"> </span></span>FPGA<span class="_ _0"> </span><span class="ff2">进行通信，将读写命令和数据进行传输。这一过</span></div><div class="t m0 x1 h2 y12 ff2 fs0 fc0 sc0 ls0 ws0">程中，<span class="ff1">PCIe<span class="_ _0"> </span></span>模块发挥着重要的作用。</div><div class="t m0 x1 h2 y13 ff1 fs0 fc0 sc0 ls0 ws0">2. <span class="_ _0"> </span><span class="ff2">命令执行：</span>FPGA<span class="_"> </span><span class="ff2">接收到<span class="_ _0"> </span></span>CPU<span class="_"> </span><span class="ff2">发送的读写命令后，解<span class="_ _1"></span>析并执行这些<span class="_ _1"></span>命令，对<span class="_ _0"> </span></span>NVMe<span class="_"> </span><span class="ff2">硬盘</span></div><div class="t m0 x1 h2 y14 ff2 fs0 fc0 sc0 ls0 ws0">进行相应的读写操作。</div><div class="t m0 x1 h2 y15 ff1 fs0 fc0 sc0 ls0 ws0">3. <span class="_ _0"> </span><span class="ff2">数据传输：读写操作完成后，</span>FPGA<span class="_"> </span><span class="ff2">将结果数据通过<span class="_ _0"> </span></span>PCIe<span class="_"> </span><span class="ff2">模块传回给<span class="_ _0"> </span></span>CPU<span class="ff2">。<span class="_ _1"></span></span>CPU<span class="_ _0"> </span><span class="ff2">可以对</span></div><div class="t m0 x1 h2 y16 ff2 fs0 fc0 sc0 ls0 ws0">这些数据进行进一步的处理或存储。</div><div class="t m0 x1 h2 y17 ff2 fs0 fc0 sc0 ls0 ws0">四、<span class="ff1">SDK<span class="_ _0"> </span></span>下枚举硬盘过程的打印</div><div class="t m0 x1 h2 y18 ff2 fs0 fc0 sc0 ls0 ws0">在<span class="_ _0"> </span><span class="ff1">SDK<span class="_"> </span></span>开发环境中，我们可以编写相应的代码来枚举<span class="_ _1"></span>连接到系统的<span class="_ _0"> </span><span class="ff1">NVMe<span class="_"> </span></span>硬盘。当硬盘被</div><div class="t m0 x1 h2 y19 ff2 fs0 fc0 sc0 ls0 ws0">检测到时，<span class="_ _9"></span>我们可以在控制台上打印出相关信息，<span class="_ _9"></span>如硬盘的型号、<span class="_ _9"></span>容量等。<span class="_ _9"></span>这样，<span class="_ _9"></span>用户可以</div><div class="t m0 x1 h2 y1a ff2 fs0 fc0 sc0 ls0 ws0">清楚地了解到系统连接的硬盘情况。</div><div class="t m0 x1 h2 y1b ff2 fs0 fc0 sc0 ls0 ws0">五、<span class="ff1">PL<span class="_ _0"> </span></span>用<span class="_ _0"> </span><span class="ff1">PCIeX1<span class="_"> </span></span>接到硬盘的实现</div><div class="t m0 x1 h2 y1c ff2 fs0 fc0 sc0 ls0 ws0">在<span class="_ _0"> </span><span class="ff1">PL<span class="_"> </span></span>部分<span class="_ _1"></span>，我<span class="_ _1"></span>们使<span class="_ _1"></span>用<span class="_ _0"> </span><span class="ff1">PCIeX1<span class="_"> </span></span>接<span class="_ _1"></span>口将<span class="_ _6"> </span><span class="ff1">FPGA<span class="_"> </span></span>与<span class="_ _0"> </span><span class="ff1">NVMe<span class="_"> </span></span>硬盘<span class="_ _1"></span>进行<span class="_ _1"></span>连接<span class="_ _1"></span>。这<span class="_ _1"></span>一过<span class="_ _1"></span>程中<span class="_ _1"></span>，我<span class="_ _1"></span>们需</div><div class="t m0 x1 h2 y1d ff2 fs0 fc0 sc0 ls0 ws0">要编写<span class="_ _1"></span>相应的<span class="_ _1"></span>硬件<span class="_ _1"></span>描述语<span class="_ _1"></span>言（<span class="ff1">HDL<span class="_ _1"></span></span>）代码<span class="_ _1"></span>来配置<span class="_ _6"> </span><span class="ff1">FPGA<span class="_"> </span></span>的逻辑<span class="_ _1"></span>电路，<span class="_ _1"></span>实现<span class="_ _0"> </span><span class="ff1">PCIeX1<span class="_"> </span></span>接口<span class="_ _1"></span>的功</div><div class="t m0 x1 h2 y1e ff2 fs0 fc0 sc0 ls0 ws0">能。当<span class="_ _0"> </span><span class="ff1">FPGA<span class="_ _0"> </span></span>与硬盘成功连接后，我们就可以进行数据的读写操作了。</div></div><div class="pi" data-data='{"ctm":[1.611830,0.000000,0.000000,1.611830,0.000000,0.000000]}'></div></div>