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<div class="headertitle"><div class="title">port.h</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Copyright (C) 2016-2018, 2020, 2022-2024 Kernkonzept GmbH.</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Author(s): Jean Wolter <jean.wolter@kernkonzept.com></span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * Alexander Warg <warg@os.inf.tu-dresden.de></span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> *</span></div>
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<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>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#pragma once</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include "request.h"</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include "mac_addr.h"</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include "vlan.h"</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include "stats.h"</span></div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include <cassert></span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <set></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="keyword">class </span>Port_iface</div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span>{</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="keyword">protected</span>:</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> Virtio_net_switch::Port_statistics *_stats;</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> Port_iface(<span class="keywordtype">char</span> <span class="keyword">const</span> *name)</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> {</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> strncpy(_name, name, <span class="keyword">sizeof</span>(_name));</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> _name[<span class="keyword">sizeof</span>(_name) - 1] = <span class="charliteral">'\0'</span>;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#ifdef CONFIG_VNS_STATS</span></div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> _stats = Switch_statistics::get_instance().allocate_port_statistics(name);</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">if</span> (!_stats)</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">throw</span> L4::Runtime_error(-<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27">L4_ENOMEM</a>,</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="stringliteral">"Could not allocate port statistics.\n"</span>);</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> }</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">virtual</span> ~Port_iface()</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> {</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="preprocessor">#ifdef CONFIG_VNS_STATS</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> _stats->in_use = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> }</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="comment">// delete copy and assignment</span></div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> Port_iface(Port_iface <span class="keyword">const</span> &) = <span class="keyword">delete</span>;</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> Port_iface &operator = (Port_iface <span class="keyword">const</span> &) = <span class="keyword">delete</span>;</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordtype">char</span> <span class="keyword">const</span> *get_name()<span class="keyword"> const</span></div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _name; }</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> get_vlan()<span class="keyword"> const</span></div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _vlan_id; }</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> is_trunk()<span class="keyword"> const</span></div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _vlan_id == VLAN_ID_TRUNK; }</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> is_native()<span class="keyword"> const</span></div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _vlan_id == VLAN_ID_NATIVE; }</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> is_access()<span class="keyword"> const</span></div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> !is_trunk() && !is_native(); }</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span></div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordtype">void</span> set_vlan_access(<a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> <span class="keywordtype">id</span>)</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> {</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> assert(vlan_valid_id(<span class="keywordtype">id</span>));</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> _vlan_id = id;</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> _vlan_bloom_filter = 0;</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> _vlan_ids.clear();</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> }</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span></div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">void</span> set_vlan_trunk(<span class="keyword">const</span> std::vector<l4_uint16_t> &ids)</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> {</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// bloom filter to quickly reject packets that do not belong to this port</span></div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> filter = 0;</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> _vlan_ids.clear();</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> <span class="keywordtype">id</span> : ids)</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> {</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> assert(vlan_valid_id(<span class="keywordtype">id</span>));</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> filter |= vlan_bloom_hash(<span class="keywordtype">id</span>);</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> _vlan_ids.insert(<span class="keywordtype">id</span>);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> }</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> _vlan_id = VLAN_ID_TRUNK;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> _vlan_bloom_filter = filter;</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> }</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span></div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordtype">void</span> set_vlan_trunk_all()</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> {</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> _vlan_all = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> _vlan_id = VLAN_ID_TRUNK;</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> _vlan_bloom_filter = -1;</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> }</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span></div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordtype">void</span> set_monitor()</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> {</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> _vlan_id = VLAN_ID_TRUNK;</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> _vlan_bloom_filter = 0;</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> }</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span></div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordtype">bool</span> match_vlan(uint16_t <span class="keywordtype">id</span>)</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> {</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="comment">// Regular case native/access port</span></div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == _vlan_id)</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> </div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="comment">// This port participates in all VLANs</span></div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">if</span> (_vlan_all)</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="comment">// Quick check: does port probably accept this VLAN?</span></div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordflow">if</span> ((_vlan_bloom_filter & vlan_bloom_hash(<span class="keywordtype">id</span>)) == 0)</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordflow">return</span> _vlan_ids.find(<span class="keywordtype">id</span>) != _vlan_ids.end();</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> }</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span></div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">inline</span> Mac_addr mac()<span class="keyword"> const</span></div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _mac; }</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> </div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> Virtio_vlan_mangle create_vlan_mangle(Port_iface *src_port)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> Virtio_vlan_mangle mangle;</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">if</span> (is_trunk())</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> {</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="comment">/*</span></div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span><span class="comment"> * Add a VLAN tag only if the packet does not already have one (by</span></div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span><span class="comment"> * coming from another trunk port) or if the packet does not belong to</span></div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span><span class="comment"> * any VLAN (by coming from a native port). The latter case is only</span></div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span><span class="comment"> * relevant if this is a monitor port. Otherwise traffic from native</span></div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span><span class="comment"> * ports is never forwarded to trunk ports.</span></div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">if</span> (!src_port->is_trunk() && !src_port->is_native())</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> mangle = <a class="code hl_function" href="classVirtio__vlan__mangle.html#ae73a7ef2980e765af8bcbb596a9540e0">Virtio_vlan_mangle::add</a>(src_port->get_vlan());</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> }</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="comment">/*</span></div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span><span class="comment"> * Remove VLAN tag only if the packet actually has one (by coming from a</span></div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span><span class="comment"> * trunk port).</span></div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">if</span> (src_port->is_trunk())</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> mangle = <a class="code hl_function" href="classVirtio__vlan__mangle.html#aba874bc1e4df446ef48274e2331b017b">Virtio_vlan_mangle::remove</a>();</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> </div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keywordflow">return</span> mangle;</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> }</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> </div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> rx_notify_disable_and_remember() = 0;</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> rx_notify_emit_and_enable() = 0;</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> </div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> is_gone() <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span></div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="comment">// std::optional<Net_request> get_tx_request() = 0;</span></div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> </div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="keyword">enum class</span> Result</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> {</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> Delivered, Exception, Dropped,</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> };</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span></div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keyword">virtual</span> Result handle_request(Port_iface *src_port,</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> Net_transfer &src,</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> *bytes_transferred) = 0;</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> </div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordtype">void</span> reschedule_pending_tx()</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> { _pending_tx_reschedule->trigger(); }</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span><span class="keyword">protected</span>:</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="comment">/*</span></div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span><span class="comment"> * VLAN related management information.</span></div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span><span class="comment"> * A port may either be</span></div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span><span class="comment"> * - a native port (_vlan_id == VLAN_ID_NATIVE), or</span></div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span><span class="comment"> * - an access port (_vlan_id set accordingly), or</span></div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span><span class="comment"> * - a trunk port (_vlan_id == VLAN_ID_TRUNK, _vlan_bloom_filter and</span></div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span><span class="comment"> * _vlan_ids populated accordingly, or _vlan_all == true).</span></div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> _vlan_id = VLAN_ID_NATIVE; <span class="comment">// VID for native/access port</span></div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> _vlan_bloom_filter = 0; <span class="comment">// Bloom filter for trunk ports</span></div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> std::set<l4_uint16_t> _vlan_ids; <span class="comment">// Authoritative list of trunk VLANs</span></div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordtype">bool</span> _vlan_all; <span class="comment">// This port participates in all VLANs (ignoring _vlan_ids)</span></div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> </div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="keyword">inline</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> vlan_bloom_hash(<a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> vid)</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> { <span class="keywordflow">return</span> 1UL << (vid & 31U); }</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span></div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> L4::Cap<L4::Irq> _pending_tx_reschedule;</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> </div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> Mac_addr _mac = Mac_addr(Mac_addr::Addr_unknown); </div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="keywordtype">char</span> _name[20]; </div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> </div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span><span class="preprocessor">#ifdef CONFIG_VNS_STATS</span></div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_tx_num()</div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> { _stats->tx_num++; }</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_tx_dropped()</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> { _stats->tx_dropped++; }</div>
|
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_tx_bytes(<a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> bytes)</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> { _stats->tx_bytes += bytes; }</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_rx_num()</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> { _stats->rx_num++; }</div>
|
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_rx_dropped()</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> { _stats->rx_dropped++; }</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_rx_bytes(<a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> bytes)</div>
|
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> { _stats->rx_bytes += bytes; }</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_tx_num()</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> {}</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_tx_dropped()</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> {}</div>
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|
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_tx_bytes(<a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> <span class="comment">/*bytes*/</span>)</div>
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|
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> {}</div>
|
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_rx_num()</div>
|
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> {}</div>
|
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_rx_dropped()</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> {}</div>
|
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> stat_inc_rx_bytes(<a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> <span class="comment">/*bytes*/</span>)</div>
|
|
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> {}</div>
|
|
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span>};</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span></div>
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<div class="ttc" id="aclassVirtio__vlan__mangle_html_aba874bc1e4df446ef48274e2331b017b"><div class="ttname"><a href="classVirtio__vlan__mangle.html#aba874bc1e4df446ef48274e2331b017b">Virtio_vlan_mangle::remove</a></div><div class="ttdeci">static constexpr Virtio_vlan_mangle remove()</div><div class="ttdoc">Construct an object that removes the VLAN tag.</div><div class="ttdef"><b>Definition</b> <a href="vlan_8h_source.html#l00075">vlan.h:75</a></div></div>
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<div class="ttc" id="aclassVirtio__vlan__mangle_html_ae73a7ef2980e765af8bcbb596a9540e0"><div class="ttname"><a href="classVirtio__vlan__mangle.html#ae73a7ef2980e765af8bcbb596a9540e0">Virtio_vlan_mangle::add</a></div><div class="ttdeci">static constexpr Virtio_vlan_mangle add(l4_uint16_t tci)</div><div class="ttdoc">Construct an object that adds a VLAN tag.</div><div class="ttdef"><b>Definition</b> <a href="vlan_8h_source.html#l00064">vlan.h:64</a></div></div>
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<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>
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<div class="ttc" id="agroup__l4__basic__types_html_gae8d67914f723bf843df6f311ad2619a2"><div class="ttname"><a href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a></div><div class="ttdeci">unsigned short int l4_uint16_t</div><div class="ttdoc">Unsigned 16bit value.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00027">l4int.h:27</a></div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_gaf3331c485014bd12a9e4f9d27a55e689"><div class="ttname"><a href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a></div><div class="ttdeci">unsigned long long l4_uint64_t</div><div class="ttdoc">Unsigned 64bit value.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00031">l4int.h:31</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27">L4_ENOMEM</a></div><div class="ttdeci">@ L4_ENOMEM</div><div class="ttdoc">No memory.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00039">err.h:39</a></div></div>
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<li class="navelem"><b>pkg</b></li><li class="navelem"><b>virtio-net-switch</b></li><li class="navelem"><b>server</b></li><li class="navelem"><b>switch</b></li><li class="navelem"><b>port.h</b></li>
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<li class="footer">Generated on <span class="timestamp"></span> for L4Re Operating System Framework by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.15.0 </li>
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