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<div class="headertitle"><div class="title">request_l4virtio.h</div></div>
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<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Copyright (C) 2016-2017, 2020, 2022, 2024 Kernkonzept GmbH.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Author(s): Jean Wolter &lt;jean.wolter@kernkonzept.com&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * Georg Kotheimer &lt;georg.kotheimer@kernkonzept.com&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> *</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * License: see LICENSE.spdx (in this directory or the directories above)</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> */</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &quot;debug.h&quot;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &quot;port.h&quot;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &quot;request.h&quot;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &quot;virtio_net.h&quot;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include &lt;l4/l4virtio/server/virtio&gt;</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include &lt;<a class="code" href="util_2assert_8h.html">l4/util/assert.h</a>&gt;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &lt;optional&gt;</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include &lt;utility&gt;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span></div>
<div class="foldopen" id="foldopen00035" data-start="{" data-end="};">
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"><a class="line" href="classVirtio__net__request.html"> 35</a></span><span class="keyword">class </span>Virtio_net_request final : <span class="keyword">public</span> Net_request</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>{</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">class </span>Virtio_net_transfer final : <span class="keyword">public</span> <a class="code hl_class" href="classNet__transfer.html">Net_transfer</a></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> {</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">explicit</span> Virtio_net_transfer(Virtio_net_request <span class="keyword">const</span> &amp;request)</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> : _request(request),</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// We already looked at the very first buffer to find the target of the</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="comment">// packet. The request processor of the &quot;parent request&quot; contains the</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="comment">// current state of the transaction up to this point. Since there might be</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// more then one target for the request we have to keep track of our own</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="comment">// state and need our own request processor instance, which will be</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// initialized using the current state of the &quot;parent request&quot;.</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> _req_proc(_request.get_request_processor())</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> {</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="comment">// The buffer descriptors used for this transaction and the amount of bytes</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// copied to the current target descriptor.</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> _cur_buf = request.first_buffer();</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> _req_id = _request.header();</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> }</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="comment">// delete copy constructor and copy assignment operator</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> Virtio_net_transfer(Virtio_net_transfer <span class="keyword">const</span> &amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> Virtio_net_transfer &amp;operator = (Virtio_net_transfer <span class="keyword">const</span> &amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordtype">void</span> copy_header(Virtio_net::Hdr *dst_header)<span class="keyword"> const override</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> memcpy(dst_header, _request.header(), <span class="keyword">sizeof</span>(Virtio_net::Hdr));</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classNet__transfer.html#a35cd3e24de6dc86e60e38f34ad9f5298">done</a>()<span class="keyword"> override</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">return</span> _cur_buf.<a class="code hl_function" href="structL4virtio_1_1Svr_1_1Data__buffer.html#af362e9d1f295b082d20a032c4a8db603">done</a>() &amp;&amp; !_req_proc.next(_request.dev()-&gt;<a class="code hl_function" href="classL4virtio_1_1Svr_1_1Device__t.html#ac35c61db0aec9e96ee18170bf5bb17b4">mem_info</a>(), &amp;_cur_buf);</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> }</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> Virtio_net_request <span class="keyword">const</span> &amp;_request;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <a class="code hl_class" href="classL4virtio_1_1Svr_1_1Request__processor.html">L4virtio::Svr::Request_processor</a> _req_proc;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> };</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordtype">void</span> dump_request(Port_iface *port)<span class="keyword"> const</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> Dbg debug(Dbg::Request, Dbg::Debug, <span class="stringliteral">&quot;REQ-VIO&quot;</span>);</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">if</span> (debug.is_active())</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> {</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> debug.printf(<span class="stringliteral">&quot;%s: Next packet: %p:%p - %x bytes\n&quot;</span>,</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> port-&gt;get_name(), _header, _pkt.pos, _pkt.left);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordflow">if</span> (_header-&gt;flags.raw || _header-&gt;gso_type)</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> {</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> debug.cprintf(<span class="stringliteral">&quot;flags:\t%x\n\t&quot;</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="stringliteral">&quot;gso_type:\t%x\n\t&quot;</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="stringliteral">&quot;header len:\t%x\n\t&quot;</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="stringliteral">&quot;gso size:\t%x\n\t&quot;</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="stringliteral">&quot;csum start:\t%x\n\t&quot;</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="stringliteral">&quot;csum offset:\t%x\n&quot;</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="stringliteral">&quot;\tnum buffer:\t%x\n&quot;</span>,</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> _header-&gt;flags.raw,</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> _header-&gt;gso_type, _header-&gt;hdr_len,</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> _header-&gt;gso_size,</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> _header-&gt;csum_start, _header-&gt;csum_offset,</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> _header-&gt;num_buffers);</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> }</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> }</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> dump_pkt();</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// delete copy constructor and copy assignment operator</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> Virtio_net_request(Virtio_net_request <span class="keyword">const</span> &amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> Virtio_net_request &amp;operator = (Virtio_net_request <span class="keyword">const</span> &amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// define move constructor and copy assignment operator</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> Virtio_net_request(Virtio_net_request &amp;&amp;other)</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> : _dev(other._dev),</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> _queue(other._queue),</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> _head(std::move(other._head)),</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> _req_proc(std::move(other._req_proc)),</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> _header(other._header)</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> {</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> _pkt = std::move(other._pkt);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="comment">// Invalidate other.</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> other._queue = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> }</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> Virtio_net_request &amp;operator = (Virtio_net_request &amp;&amp;other)</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> {</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// Invalidate self.</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> finish();</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> _dev = other._dev;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> _queue = other._queue;</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> _head = std::move(other._head);</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> _req_proc = std::move(other._req_proc);</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> _header = other._header;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> _pkt = std::move(other._pkt);</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="comment">// Invalidate other.</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> other._queue = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> }</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> </div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> Virtio_net_request(<a class="code hl_class" href="classVirtio__net.html">Virtio_net</a> *dev, <a class="code hl_class" href="classL4virtio_1_1Svr_1_1Virtqueue.html">L4virtio::Svr::Virtqueue</a> *queue,</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> L4virtio::Svr::Virtqueue::Request <span class="keyword">const</span> &amp;req)</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> : _dev(dev), _queue(queue)</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> {</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> _head = _req_proc.start(_dev-&gt;mem_info(), req, &amp;_pkt);</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> _header = (Virtio_net::Hdr *)_pkt.pos;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> skipped = _pkt.skip(<span class="keyword">sizeof</span>(Virtio_net::Hdr));</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">if</span> (<a class="code hl_define" href="group__l4sys__defines.html#ga3df4200910f2664b97397c23693beeb0">L4_UNLIKELY</a>( (skipped != <span class="keyword">sizeof</span>(Virtio_net::Hdr))</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> || (_pkt.done() &amp;&amp; !_next_buffer(&amp;_pkt))))</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> {</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> _header = 0;</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> Dbg(Dbg::Queue, Dbg::Warn).printf(<span class="stringliteral">&quot;Invalid request\n&quot;</span>);</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> }</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> }</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> ~Virtio_net_request()</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> { finish(); }</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keywordtype">bool</span> valid()<span class="keyword"> const</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _header != 0; }</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span></div>
<div class="foldopen" id="foldopen00172" data-start="{" data-end="}">
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"><a class="line" href="classVirtio__net__request.html#a7b7f4879d5a6d2081e4dac7266c50fbc"> 172</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classVirtio__net__request.html#a7b7f4879d5a6d2081e4dac7266c50fbc">drop_requests</a>(<a class="code hl_class" href="classVirtio__net.html">Virtio_net</a> *dev,</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <a class="code hl_class" href="classL4virtio_1_1Svr_1_1Virtqueue.html">L4virtio::Svr::Virtqueue</a> *queue)</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> {</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">if</span> (<a class="code hl_define" href="group__l4sys__defines.html#ga3df4200910f2664b97397c23693beeb0">L4_UNLIKELY</a>(!queue-&gt;<a class="code hl_function" href="classL4virtio_1_1Virtqueue.html#aa242e930433e8705c4ee00afaf58f686">ready</a>()))</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">if</span> (queue-&gt;<a class="code hl_function" href="classL4virtio_1_1Svr_1_1Virtqueue.html#a17bf1779983cb1471fd3c0ca68641922">desc_avail</a>())</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> Dbg(Dbg::Request, Dbg::Debug)</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> .printf(<span class="stringliteral">&quot;Dropping incoming packets on monitor port\n&quot;</span>);</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> </div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <a class="code hl_class" href="classL4virtio_1_1Svr_1_1Request__processor.html">L4virtio::Svr::Request_processor</a> req_proc;</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <a class="code hl_struct" href="structBuffer.html">Buffer</a> pkt;</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> </div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">while</span> (<span class="keyword">auto</span> req = queue-&gt;<a class="code hl_function" href="classL4virtio_1_1Svr_1_1Virtqueue.html#aa7e9493f7fe5bfa9ebaa5d80be8179cf">next_avail</a>())</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> {</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keyword">auto</span> head = req_proc.<a class="code hl_function" href="classL4virtio_1_1Svr_1_1Request__processor.html#abcf6a6b8bf80e0d73d45b5eb9e817abd">start</a>(dev-&gt;mem_info(), req, &amp;pkt);</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> queue-&gt;<a class="code hl_function" href="classL4virtio_1_1Svr_1_1Virtqueue.html#aeba93ed1ee8f9abfe42542187e54cca0">finish</a>(head, dev, 0);</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> }</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> }</div>
</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keyword">static</span> std::optional&lt;Virtio_net_request&gt;</div>
<div class="foldopen" id="foldopen00199" data-start="{" data-end="}">
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"><a class="line" href="classVirtio__net__request.html#a54bc204105bfec0d318affa5d87185d8"> 199</a></span> <a class="code hl_function" href="classVirtio__net__request.html#a54bc204105bfec0d318affa5d87185d8">get_request</a>(<a class="code hl_class" href="classVirtio__net.html">Virtio_net</a> *dev, <a class="code hl_class" href="classL4virtio_1_1Svr_1_1Virtqueue.html">L4virtio::Svr::Virtqueue</a> *queue)</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> {</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keywordflow">if</span> (<a class="code hl_define" href="group__l4sys__defines.html#ga3df4200910f2664b97397c23693beeb0">L4_UNLIKELY</a>(!queue-&gt;<a class="code hl_function" href="classL4virtio_1_1Virtqueue.html#aa242e930433e8705c4ee00afaf58f686">ready</a>()))</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keywordflow">return</span> std::nullopt;</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> </div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">if</span> (<span class="keyword">auto</span> r = queue-&gt;<a class="code hl_function" href="classL4virtio_1_1Svr_1_1Virtqueue.html#aa7e9493f7fe5bfa9ebaa5d80be8179cf">next_avail</a>())</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> {</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="comment">// Virtio_net_request keeps &quot;a lot of internal state&quot;,</span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="comment">// therefore we create the object before creating the</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="comment">// state.</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="comment">// We might check later on whether it is possible to</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// save the state when we actually have to because a</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="comment">// transfer is blocking on a port.</span></div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">auto</span> request = Virtio_net_request(dev, queue, r);</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="keywordflow">if</span> (request.valid())</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="keywordflow">return</span> request;</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> }</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">return</span> std::nullopt;</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> }</div>
</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> </div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <a class="code hl_struct" href="structBuffer.html">Buffer</a> <span class="keyword">const</span> &amp;first_buffer()<span class="keyword"> const</span></div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _pkt; }</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> </div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> Virtio_net::Hdr <span class="keyword">const</span> *header()<span class="keyword"> const</span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _header; }</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> L4virtio::Svr::Request_processor <span class="keyword">const</span> &amp;get_request_processor()<span class="keyword"> const</span></div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _req_proc; }</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> Virtio_net <span class="keyword">const</span> *dev()<span class="keyword"> const</span></div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _dev; }</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> </div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> Virtio_net_transfer transfer_src()<span class="keyword"> const</span></div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> Virtio_net_transfer(*<span class="keyword">this</span>); }</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span></div>
<div class="foldopen" id="foldopen00235" data-start="{" data-end="}">
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"><a class="line" href="classVirtio__net__request.html#a9d25c994539f6f7d20f0cf273026a06d"> 235</a></span> <a class="code hl_class" href="classMac__addr.html">Mac_addr</a> <a class="code hl_function" href="classVirtio__net__request.html#a9d25c994539f6f7d20f0cf273026a06d">dst_mac</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keywordflow">return</span> (_pkt.pos &amp;&amp; _pkt.left &gt;= Mac_addr::Addr_length)</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> ? <a class="code hl_class" href="classMac__addr.html">Mac_addr</a>(_pkt.pos)</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> : <a class="code hl_class" href="classMac__addr.html">Mac_addr</a>(Mac_addr::Addr_unknown);</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> }</div>
</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span></div>
<div class="foldopen" id="foldopen00243" data-start="{" data-end="}">
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"><a class="line" href="classVirtio__net__request.html#a929bf78b8f546e47f962d848b0df4c8f"> 243</a></span> <a class="code hl_class" href="classMac__addr.html">Mac_addr</a> <a class="code hl_function" href="classVirtio__net__request.html#a929bf78b8f546e47f962d848b0df4c8f">src_mac</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span><span class="keyword"> </span>{</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordflow">return</span> (_pkt.pos &amp;&amp; _pkt.left &gt;= Mac_addr::Addr_length * 2)</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> ? <a class="code hl_class" href="classMac__addr.html">Mac_addr</a>(_pkt.pos + Mac_addr::Addr_length)</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> : <a class="code hl_class" href="classMac__addr.html">Mac_addr</a>(Mac_addr::Addr_unknown);</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> }</div>
</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> </div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> </div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="comment">/* needed for Virtqueue::finish() */</span></div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <a class="code hl_class" href="classVirtio__net.html">Virtio_net</a> *_dev;</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <a class="code hl_class" href="classL4virtio_1_1Svr_1_1Virtqueue.html">L4virtio::Svr::Virtqueue</a> *_queue;</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <a class="code hl_class" href="classL4virtio_1_1Svr_1_1Virtqueue_1_1Head__desc.html">L4virtio::Svr::Virtqueue::Head_desc</a> _head;</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> </div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="comment">/* the actual request processor, encapsulates the decoding of the request */</span></div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <a class="code hl_class" href="classL4virtio_1_1Svr_1_1Request__processor.html">L4virtio::Svr::Request_processor</a> _req_proc;</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> </div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <span class="comment">/* A request to the virtio net layer consists of one or more buffers</span></div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span><span class="comment"> containing the Virtio_net::Hdr and the actual packet. To make a</span></div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span><span class="comment"> switching decision we need to be able to look at the packet while</span></div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span><span class="comment"> still being able access the Virtio_net::Hdr for the actual copy</span></div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span><span class="comment"> operation. Therefore we keep track of two locations, the header</span></div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span><span class="comment"> location and the start of the packet (which might be in a</span></div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span><span class="comment"> different buffer) */</span></div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> Virtio_net::Hdr *_header;</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> </div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="keywordtype">bool</span> _next_buffer(<a class="code hl_struct" href="structBuffer.html">Buffer</a> *buf)</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> { <span class="keywordflow">return</span> _req_proc.<a class="code hl_function" href="classL4virtio_1_1Svr_1_1Request__processor.html#a0bb9280caa7b899486ccd83bcf0588cd">next</a>(_dev-&gt;<a class="code hl_function" href="classL4virtio_1_1Svr_1_1Device__t.html#ac35c61db0aec9e96ee18170bf5bb17b4">mem_info</a>(), buf); }</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span></div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="keywordtype">void</span> finish()</div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> {</div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="keywordflow">if</span> (_queue == <span class="keyword">nullptr</span> || !_queue-&gt;ready())</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> </div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> Dbg(Dbg::Virtio, Dbg::Trace).printf(<span class="stringliteral">&quot;%s(%p)\n&quot;</span>, __PRETTY_FUNCTION__, <span class="keyword">this</span>);</div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> _queue-&gt;finish(_head, _dev, 0);</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> _queue = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> }</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span>};</div>
</div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Device__t_html_ac35c61db0aec9e96ee18170bf5bb17b4"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Device__t.html#ac35c61db0aec9e96ee18170bf5bb17b4">L4virtio::Svr::Device_t::mem_info</a></div><div class="ttdeci">Mem_list const * mem_info() const</div><div class="ttdoc">Get the memory region list used for this device.</div><div class="ttdef"><b>Definition</b> <a href="server_2l4virtio_source.html#l00898">l4virtio:898</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Request__processor_html"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Request__processor.html">L4virtio::Svr::Request_processor</a></div><div class="ttdoc">Encapsulate the state for processing a VIRTIO request.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00472">virtio:473</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Request__processor_html_a0bb9280caa7b899486ccd83bcf0588cd"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Request__processor.html#a0bb9280caa7b899486ccd83bcf0588cd">L4virtio::Svr::Request_processor::next</a></div><div class="ttdeci">bool next(DESC_MAN *dm, ARGS... args)</div><div class="ttdoc">Switch to the next descriptor in a descriptor chain.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00570">virtio:570</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Request__processor_html_abcf6a6b8bf80e0d73d45b5eb9e817abd"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Request__processor.html#abcf6a6b8bf80e0d73d45b5eb9e817abd">L4virtio::Svr::Request_processor::start</a></div><div class="ttdeci">void start(DESC_MAN *dm, Virtqueue *ring, Virtqueue::Head_desc const &amp;request, ARGS... args)</div><div class="ttdoc">Start processing a new request.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00501">virtio:501</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Virtqueue_1_1Head__desc_html"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Virtqueue_1_1Head__desc.html">L4virtio::Svr::Virtqueue::Head_desc</a></div><div class="ttdoc">VIRTIO request, essentially a descriptor from the available ring.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00093">virtio:94</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Virtqueue_html"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Virtqueue.html">L4virtio::Svr::Virtqueue</a></div><div class="ttdoc">Virtqueue implementation for the device.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00087">virtio:88</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Virtqueue_html_a17bf1779983cb1471fd3c0ca68641922"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Virtqueue.html#a17bf1779983cb1471fd3c0ca68641922">L4virtio::Svr::Virtqueue::desc_avail</a></div><div class="ttdeci">bool desc_avail() const</div><div class="ttdoc">Test for available descriptors.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00175">virtio:175</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Virtqueue_html_aa7e9493f7fe5bfa9ebaa5d80be8179cf"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Virtqueue.html#aa7e9493f7fe5bfa9ebaa5d80be8179cf">L4virtio::Svr::Virtqueue::next_avail</a></div><div class="ttdeci">Request next_avail()</div><div class="ttdoc">Get the next available descriptor from the available ring.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00136">virtio:136</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Svr_1_1Virtqueue_html_aeba93ed1ee8f9abfe42542187e54cca0"><div class="ttname"><a href="classL4virtio_1_1Svr_1_1Virtqueue.html#aeba93ed1ee8f9abfe42542187e54cca0">L4virtio::Svr::Virtqueue::finish</a></div><div class="ttdeci">void finish(Head_desc &amp;d, QUEUE_OBSERVER *o, l4_uint32_t len=0)</div><div class="ttdoc">Add a descriptor to the used ring, and notify an observer.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00240">virtio:240</a></div></div>
<div class="ttc" id="aclassL4virtio_1_1Virtqueue_html_aa242e930433e8705c4ee00afaf58f686"><div class="ttname"><a href="classL4virtio_1_1Virtqueue.html#aa242e930433e8705c4ee00afaf58f686">L4virtio::Virtqueue::ready</a></div><div class="ttdeci">bool ready() const</div><div class="ttdoc">Test if this queue is in working state.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00400">virtqueue:400</a></div></div>
<div class="ttc" id="aclassMac__addr_html"><div class="ttname"><a href="classMac__addr.html">Mac_addr</a></div><div class="ttdoc">A wrapper class around the value of a MAC address.</div><div class="ttdef"><b>Definition</b> <a href="mac__addr_8h_source.html#l00019">mac_addr.h:20</a></div></div>
<div class="ttc" id="aclassNet__transfer_html"><div class="ttname"><a href="classNet__transfer.html">Net_transfer</a></div><div class="ttdoc">A network request to only a single destination.</div><div class="ttdef"><b>Definition</b> <a href="request_8h_source.html#l00033">request.h:34</a></div></div>
<div class="ttc" id="aclassNet__transfer_html_a35cd3e24de6dc86e60e38f34ad9f5298"><div class="ttname"><a href="classNet__transfer.html#a35cd3e24de6dc86e60e38f34ad9f5298">Net_transfer::done</a></div><div class="ttdeci">virtual bool done()=0</div><div class="ttdoc">Check whether the transfer has been completed, i.e.</div></div>
<div class="ttc" id="aclassVirtio__net__request_html_a54bc204105bfec0d318affa5d87185d8"><div class="ttname"><a href="classVirtio__net__request.html#a54bc204105bfec0d318affa5d87185d8">Virtio_net_request::get_request</a></div><div class="ttdeci">static std::optional&lt; Virtio_net_request &gt; get_request(Virtio_net *dev, L4virtio::Svr::Virtqueue *queue)</div><div class="ttdoc">Construct a request from the next entry of a provided queue.</div><div class="ttdef"><b>Definition</b> <a href="#l00199">request_l4virtio.h:199</a></div></div>
<div class="ttc" id="aclassVirtio__net__request_html_a7b7f4879d5a6d2081e4dac7266c50fbc"><div class="ttname"><a href="classVirtio__net__request.html#a7b7f4879d5a6d2081e4dac7266c50fbc">Virtio_net_request::drop_requests</a></div><div class="ttdeci">static void drop_requests(Virtio_net *dev, L4virtio::Svr::Virtqueue *queue)</div><div class="ttdoc">Drop all requests of a specific queue.</div><div class="ttdef"><b>Definition</b> <a href="#l00172">request_l4virtio.h:172</a></div></div>
<div class="ttc" id="aclassVirtio__net__request_html_a929bf78b8f546e47f962d848b0df4c8f"><div class="ttname"><a href="classVirtio__net__request.html#a929bf78b8f546e47f962d848b0df4c8f">Virtio_net_request::src_mac</a></div><div class="ttdeci">Mac_addr src_mac() const</div><div class="ttdoc">Get the Mac address of the source port.</div><div class="ttdef"><b>Definition</b> <a href="#l00243">request_l4virtio.h:243</a></div></div>
<div class="ttc" id="aclassVirtio__net__request_html_a9d25c994539f6f7d20f0cf273026a06d"><div class="ttname"><a href="classVirtio__net__request.html#a9d25c994539f6f7d20f0cf273026a06d">Virtio_net_request::dst_mac</a></div><div class="ttdeci">Mac_addr dst_mac() const</div><div class="ttdoc">Get the Mac address of the destination port.</div><div class="ttdef"><b>Definition</b> <a href="#l00235">request_l4virtio.h:235</a></div></div>
<div class="ttc" id="aclassVirtio__net_html"><div class="ttname"><a href="classVirtio__net.html">Virtio_net</a></div><div class="ttdoc">The Base class of a Port.</div><div class="ttdef"><b>Definition</b> <a href="l4re-snapshot-25_808_80_2src_2l4_2pkg_2virtio-net-switch_2server_2switch_2virtio__net_8h_source.html#l00071">virtio_net.h:74</a></div></div>
<div class="ttc" id="agroup__l4__basic__types_html_gac1d09f3e382e711b776931f10e6e1e5a"><div class="ttname"><a href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a></div><div class="ttdeci">unsigned int l4_uint32_t</div><div class="ttdoc">Unsigned 32bit value.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00029">l4int.h:29</a></div></div>
<div class="ttc" id="agroup__l4sys__defines_html_ga3df4200910f2664b97397c23693beeb0"><div class="ttname"><a href="group__l4sys__defines.html#ga3df4200910f2664b97397c23693beeb0">L4_UNLIKELY</a></div><div class="ttdeci">#define L4_UNLIKELY(x)</div><div class="ttdoc">Expression is unlikely to execute.</div><div class="ttdef"><b>Definition</b> <a href="compiler_8h_source.html#l00284">compiler.h:284</a></div></div>
<div class="ttc" id="astructBuffer_html"><div class="ttname"><a href="structBuffer.html">Buffer</a></div><div class="ttdoc">Data buffer used to transfer packets.</div><div class="ttdef"><b>Definition</b> <a href="virtio__net__buffer_8h_source.html#l00019">virtio_net_buffer.h:20</a></div></div>
<div class="ttc" id="astructL4virtio_1_1Svr_1_1Data__buffer_html_af362e9d1f295b082d20a032c4a8db603"><div class="ttname"><a href="structL4virtio_1_1Svr_1_1Data__buffer.html#af362e9d1f295b082d20a032c4a8db603">L4virtio::Svr::Data_buffer::done</a></div><div class="ttdeci">bool done() const</div><div class="ttdoc">Check if there are no more bytes left in the buffer.</div><div class="ttdef"><b>Definition</b> <a href="virtio_source.html#l00388">virtio:388</a></div></div>
<div class="ttc" id="autil_2assert_8h_html"><div class="ttname"><a href="util_2assert_8h.html">assert.h</a></div><div class="ttdoc">Some useful assert-style macros.</div></div>
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