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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// vi:ft=cpp</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">/* SPDX-License-Identifier: MIT */</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * Copyright (C) 2015-2022, 2024 Kernkonzept GmbH.</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * Author(s): Sarah Hoffmann <sarah.hoffmann@kernkonzept.com></span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * Manuel von Oltersdorff-Kalettka <manuel.kalettka@kernkonzept.com></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="comment"> */</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#pragma once</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include <<a class="code" href="factory.html">l4/sys/factory</a>></span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include <<a class="code" href="semaphore.html">l4/sys/semaphore</a>></span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include <<a class="code" href="dataspace.html">l4/re/dataspace</a>></span></div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <<a class="code" href="env.html">l4/re/env</a>></span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include <<a class="code" href="util_2unique__cap.html">l4/re/util/unique_cap</a>></span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <l4/re/util/object_registry></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <<a class="code" href="error__helper.html">l4/re/error_helper</a>></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="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <<a class="code" href="l4_2util_2atomic_8h.html">l4/util/atomic.h</a>></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <<a class="code" href="bitops_8h.html">l4/util/bitops.h</a>></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <l4/l4virtio/client/l4virtio></span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include <l4/l4virtio/l4virtio></span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include <l4/l4virtio/virtqueue></span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include <l4/l4virtio/virtio_block.h></span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include <<a class="code" href="l4_2sys_2consts_8h.html">l4/sys/consts.h</a>></span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include <cstring></span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include <functional></span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceL4virtio.html">L4virtio</a> { <span class="keyword">namespace </span>Driver {</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span></div>
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<div class="foldopen" id="foldopen00036" data-start="{" data-end="};">
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device.html"> 36</a></span><span class="keyword">class </span><a class="code hl_class" href="classL4virtio_1_1Driver_1_1Block__device.html">Block_device</a> : <span class="keyword">public</span> <a class="code hl_class" href="classL4virtio_1_1Driver_1_1Device.html">Device</a></div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span>{</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">typedef</span> std::function<void(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)> Callback;</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><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">enum</span> { Header_size = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structl4virtio__block__header__t.html">l4virtio_block_header_t</a>) };</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="keyword">struct </span>Request</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> {</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> tail;</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> Callback callback;</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> Request() : tail(Virtqueue::Eoq), callback(0) {}</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> };</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="keyword">public</span>:</div>
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<div class="foldopen" id="foldopen00056" data-start="{" data-end="};">
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html"> 56</a></span> <span class="keyword">class </span>Handle</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> {</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">friend</span> Block_device;</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> head;</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">explicit</span> Handle(<a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> descno) : head(descno) {}</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> Handle() : head(Virtqueue::Eoq) {}</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordtype">bool</span> valid()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> head != Virtqueue::Eoq; }</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> };</div>
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</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="foldopen" id="foldopen00092" data-start="{" data-end="}">
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device.html#af509c2785789dd2daf6b13f3369c6581"> 92</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Block__device.html#af509c2785789dd2daf6b13f3369c6581">setup_device</a>(<a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<L4virtio::Device></a> srvcap, <a class="code hl_typedef" href="group__l4__basic__types.html#ga08c1e83a068ded7add134b188cd44967">l4_size_t</a> usermem,</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordtype">void</span> **userdata, <a class="code hl_class" href="classL4virtio_1_1Ptr.html">Ptr<void></a> &user_devaddr,</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<L4Re::Dataspace></a> qds = <a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<L4Re::Dataspace></a>(),</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> fmask0 = -1U, <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> fmask1 = -1U)</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> <span class="comment">// Contact device.</span></div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Device.html#a4f8b3d73188c3b6664755b81b80e441c">driver_connect</a>(srvcap);</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> <span class="keywordflow">if</span> (_config->device != <a class="code hl_enumvalue" href="group__l4virtio__transport.html#ggaa3812d621d81dd6a7101d739153b6c3ba10cc3c1991081bd51ac54a45f0d407c8">L4VIRTIO_ID_BLOCK</a>)</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <a class="code hl_function" href="namespaceL4Re.html#a3f17984019f06676a7e3eecb41bbb0bb">L4Re::chksys</a>(-<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a96c4464d149a63301a5314ecd1ff53d9">L4_ENODEV</a>, <span class="stringliteral">"Device is not a block device."</span>);</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> </div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">if</span> (_config->num_queues != 1)</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <a class="code hl_function" href="namespaceL4Re.html#a3f17984019f06676a7e3eecb41bbb0bb">L4Re::chksys</a>(-<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a54ddbebc30b661c87177b968a77588b8">L4_EINVAL</a>, <span class="stringliteral">"Invalid number of queues reported."</span>);</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// Memory is shared in one large dataspace which contains queues,</span></div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// space for header/status and additional user-defined memory.</span></div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordtype">unsigned</span> queuesz = <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Device.html#a07dd8cdbc1ce12dca8af6a540463ae23">max_queue_size</a>(0);</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga08c1e83a068ded7add134b188cd44967">l4_size_t</a> totalsz = <a class="code hl_function" href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a>(usermem);</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> <span class="keyword">const</span> header_offset =</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <a class="code hl_function" href="group__l4__memory__api.html#gae876a4c6e0f21b2ecbf17863dc7d11e4">l4_round_size</a>(_queue.total_size(queuesz),</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> l4util_bsr(<span class="keyword">alignof</span>(<a class="code hl_struct" href="structl4virtio__block__header__t.html">l4virtio_block_header_t</a>)));</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> <span class="keyword">const</span> status_offset = header_offset + queuesz * Header_size;</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> <span class="keyword">const</span> usermem_offset = <a class="code hl_function" href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a>(status_offset + queuesz);</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="comment">// reserve space for one header/status per descriptor</span></div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="comment">// TODO Should be reduced to 1/3 but this way no freelist is needed.</span></div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> totalsz += usermem_offset;</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> </div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keyword">auto</span> *e = <a class="code hl_function" href="classL4Re_1_1Env.html#a2706ca11e70845b0a29a5646c9fd54bc">L4Re::Env::env</a>();</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">if</span> (!qds.is_valid())</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> {</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> _ds = <a class="code hl_function" href="namespaceL4Re.html#a64b057254a760643ba67a9ed452fede8">L4Re::chkcap</a>(<a class="code hl_function" href="namespaceL4Re_1_1Util.html#a0c4ee77222764600950f2ebe23a1e45a">L4Re::Util::make_unique_cap<L4Re::Dataspace></a>(),</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="stringliteral">"Allocate queue dataspace capability"</span>);</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <a class="code hl_function" href="namespaceL4Re.html#a3f17984019f06676a7e3eecb41bbb0bb">L4Re::chksys</a>(e->mem_alloc()->alloc(totalsz, _ds.get(),</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <a class="code hl_enumvalue" href="classL4Re_1_1Mem__alloc.html#a47f3e054def977c17dbf60bfbb4ee05ea24aed4d1617b5d1247f03ff81f828b1c">L4Re::Mem_alloc::Continuous</a></div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> | <a class="code hl_enumvalue" href="classL4Re_1_1Mem__alloc.html#a47f3e054def977c17dbf60bfbb4ee05ea7875dadd56bd617a0921da23f43da7ca">L4Re::Mem_alloc::Pinned</a>),</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="stringliteral">"Allocate memory for virtio structures"</span>);</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> _queue_ds = _ds.get();</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> }</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> {</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">if</span> (qds->size() < totalsz)</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <a class="code hl_function" href="namespaceL4Re.html#a3f17984019f06676a7e3eecb41bbb0bb">L4Re::chksys</a>(-<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a54ddbebc30b661c87177b968a77588b8">L4_EINVAL</a>, <span class="stringliteral">"External queue dataspace too small."</span>);</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> _queue_ds = qds;</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> }</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="comment">// Now sort out which region goes where in the dataspace.</span></div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <a class="code hl_function" href="namespaceL4Re.html#a3f17984019f06676a7e3eecb41bbb0bb">L4Re::chksys</a>(e->rm()->attach(&_queue_region, totalsz,</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">L4Re::Rm::F::Search_addr</a> | <a class="code hl_enumvalue" href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a">L4Re::Rm::F::RW</a>,</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <a class="code hl_function" href="namespaceL4_1_1Ipc.html#aa6b9422f850eb175240c9d18c5cc708c">L4::Ipc::make_cap_rw</a>(_queue_ds), 0,</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <a class="code hl_define" href="group__l4__memory__api.html#gad2f7e71d6265b2735f730dc90c54539a">L4_PAGESHIFT</a>),</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="stringliteral">"Attach dataspace for virtio structures"</span>);</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> devaddr;</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <a class="code hl_function" href="namespaceL4Re.html#a3f17984019f06676a7e3eecb41bbb0bb">L4Re::chksys</a>(<a class="code hl_function" href="classL4virtio_1_1Driver_1_1Device.html#a7a5c440b8353e0bd030a552334e7e5a3">register_ds</a>(_queue_ds, 0, totalsz, &devaddr),</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="stringliteral">"Register queue dataspace with device"</span>);</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> _queue.init_queue(queuesz, _queue_region.get());</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Device.html#aa557ba0e56fbfc194b07440ecc796061">config_queue</a>(0, queuesz, devaddr, devaddr + _queue.avail_offset(),</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> devaddr + _queue.used_offset());</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> _header_addr = devaddr + header_offset;</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> _headers = <span class="keyword">reinterpret_cast<</span><a class="code hl_struct" href="structl4virtio__block__header__t.html">l4virtio_block_header_t</a> *<span class="keyword">></span>(_queue_region.get()</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> + header_offset);</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> _status_addr = devaddr + status_offset;</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> _status = _queue_region.get() + status_offset;</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> user_devaddr = <a class="code hl_class" href="classL4virtio_1_1Ptr.html">Ptr<void></a>(devaddr + usermem_offset);</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">if</span> (userdata)</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> *userdata = _queue_region.get() + usermem_offset;</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="comment">// setup the callback mechanism</span></div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> _pending.assign(queuesz, Request());</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="comment">// Finish handshake with device.</span></div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> _config->driver_features_map[0] = fmask0;</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> _config->driver_features_map[1] = fmask1;</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Device.html#af06d27e63124749456ddc8d959231741">driver_acknowledge</a>();</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> }</div>
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</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span></div>
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<div class="foldopen" id="foldopen00178" data-start="{" data-end="}">
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device.html#a8263c520da55434d7b570200ef24120a"> 178</a></span> <a class="code hl_struct" href="structl4virtio__block__config__t.html">l4virtio_block_config_t</a> <span class="keyword">const</span> &<a class="code hl_function" href="classL4virtio_1_1Driver_1_1Block__device.html#a8263c520da55434d7b570200ef24120a">device_config</a>()<span class="keyword"> const</span></div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">return</span> *_config->device_config<<a class="code hl_struct" href="structl4virtio__block__config__t.html">l4virtio_block_config_t</a>>();</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> }</div>
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</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span></div>
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<div class="foldopen" id="foldopen00191" data-start="{" data-end="}">
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device.html#afdd043c2adbca7fea5eb057f9aa4b483"> 191</a></span> <a class="code hl_class" href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html">Handle</a> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Block__device.html#afdd043c2adbca7fea5eb057f9aa4b483">start_request</a>(<a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> sector, <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> type,</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> Callback callback)</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> {</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> descno = _queue.alloc_descriptor();</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keywordflow">if</span> (descno == Virtqueue::Eoq)</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html">Handle</a>(Virtqueue::Eoq);</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> </div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <a class="code hl_class" href="classL4virtio_1_1Virtqueue_1_1Desc.html">L4virtio::Virtqueue::Desc</a> &desc = _queue.desc(descno);</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> Request &req = _pending[descno];</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="comment">// setup the header</span></div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <a class="code hl_struct" href="structl4virtio__block__header__t.html">l4virtio_block_header_t</a> &head = _headers[descno];</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> head.<a class="code hl_variable" href="structl4virtio__block__header__t.html#a00b6656ed8101dbc72030a39baf5bda6">type</a> = type;</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> head.<a class="code hl_variable" href="structl4virtio__block__header__t.html#a497bbdd38d2493d5b8d4f2e98d06ed7d">ioprio</a> = 0;</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> head.<a class="code hl_variable" href="structl4virtio__block__header__t.html#af92759ca15e9cd5c8d8491aeb81b3164">sector</a> = sector;</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> </div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="comment">// and put it in the descriptor</span></div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a8aad49eded68125ad5e94d0688d09828">addr</a> = <a class="code hl_class" href="classL4virtio_1_1Ptr.html">Ptr<void></a>(_header_addr + descno * Header_size);</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a55a515e923e62893696c1e6c09ffb62b">len</a> = Header_size;</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_variable" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#afa64023e5d6237498ec1844c1f0980e0">raw</a> = 0; <span class="comment">// no write, no indirect</span></div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> </div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> req.tail = descno;</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> req.callback = callback;</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> </div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html">Handle</a>(descno);</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> }</div>
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</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span></div>
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<div class="foldopen" id="foldopen00229" data-start="{" data-end="}">
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device.html#a53ec612b1d207804102e34d51f6016cc"> 229</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Block__device.html#a53ec612b1d207804102e34d51f6016cc">add_block</a>(<a class="code hl_class" href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html">Handle</a> handle, <a class="code hl_class" href="classL4virtio_1_1Ptr.html">Ptr<void></a> addr, <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> size)</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> {</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> descno = _queue.alloc_descriptor();</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keywordflow">if</span> (descno == Virtqueue::Eoq)</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keywordflow">return</span> -<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9ad0af5659bdc7c7a0b3ac3a749d0da8e7">L4_EAGAIN</a>;</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> </div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> Request &req = _pending[handle.head];</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <a class="code hl_class" href="classL4virtio_1_1Virtqueue_1_1Desc.html">L4virtio::Virtqueue::Desc</a> &desc = _queue.desc(descno);</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <a class="code hl_class" href="classL4virtio_1_1Virtqueue_1_1Desc.html">L4virtio::Virtqueue::Desc</a> &prev = _queue.desc(req.tail);</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> </div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> prev.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a1cc6e1da64e64f03e33a525501b42c29">next</a> = descno;</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> prev.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_function" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#a7412bbf6d83eccc67857cf7bddaf6897">next</a>() = <span class="keyword">true</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> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a8aad49eded68125ad5e94d0688d09828">addr</a> = addr;</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a55a515e923e62893696c1e6c09ffb62b">len</a> = size;</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_variable" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#afa64023e5d6237498ec1844c1f0980e0">raw</a> = 0;</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordflow">if</span> (_headers[handle.head].type > 0) <span class="comment">// write or flush request</span></div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_function" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#ae8a176bcd662bb1e50f08fe63147372b">write</a>() = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> </div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> req.tail = descno;</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> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9aca91ea3bdb5bd82f63784ee66b489d5e">L4_EOK</a>;</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> }</div>
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</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="foldopen" id="foldopen00265" data-start="{" data-end="}">
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device.html#a2c2e9924abafe2eff34821b166c6c36f"> 265</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Block__device.html#a2c2e9924abafe2eff34821b166c6c36f">send_request</a>(<a class="code hl_class" href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html">Handle</a> handle)</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> {</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="comment">// add the status bit</span></div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="keyword">auto</span> descno = _queue.alloc_descriptor();</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> <span class="keywordflow">if</span> (descno == Virtqueue::Eoq)</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keywordflow">return</span> -<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9ad0af5659bdc7c7a0b3ac3a749d0da8e7">L4_EAGAIN</a>;</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> Request &req = _pending[handle.head];</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <a class="code hl_class" href="classL4virtio_1_1Virtqueue_1_1Desc.html">L4virtio::Virtqueue::Desc</a> &desc = _queue.desc(descno);</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <a class="code hl_class" href="classL4virtio_1_1Virtqueue_1_1Desc.html">L4virtio::Virtqueue::Desc</a> &prev = _queue.desc(req.tail);</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> prev.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a1cc6e1da64e64f03e33a525501b42c29">next</a> = descno;</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> prev.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_function" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#a7412bbf6d83eccc67857cf7bddaf6897">next</a>() = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> </div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a8aad49eded68125ad5e94d0688d09828">addr</a> = <a class="code hl_class" href="classL4virtio_1_1Ptr.html">Ptr<void></a>(_status_addr + descno);</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a55a515e923e62893696c1e6c09ffb62b">len</a> = 1;</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_variable" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#afa64023e5d6237498ec1844c1f0980e0">raw</a> = 0;</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_function" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#ae8a176bcd662bb1e50f08fe63147372b">write</a>() = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> </div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> req.tail = descno;</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> </div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Device.html#a72090d324268b51f3937197748c26853">send</a>(_queue, handle.head);</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> </div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9aca91ea3bdb5bd82f63784ee66b489d5e">L4_EOK</a>;</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> }</div>
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</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span></div>
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<div class="foldopen" id="foldopen00306" data-start="{" data-end="}">
|
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device.html#a63f21e71556accc8c669ef80161ecd8e"> 306</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Block__device.html#a63f21e71556accc8c669ef80161ecd8e">process_request</a>(<a class="code hl_class" href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html">Handle</a> handle)</div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> {</div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <span class="comment">// add the status bit</span></div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <span class="keyword">auto</span> descno = _queue.alloc_descriptor();</div>
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<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordflow">if</span> (descno == Virtqueue::Eoq)</div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <span class="keywordflow">return</span> -<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9ad0af5659bdc7c7a0b3ac3a749d0da8e7">L4_EAGAIN</a>;</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> </div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <a class="code hl_class" href="classL4virtio_1_1Virtqueue_1_1Desc.html">L4virtio::Virtqueue::Desc</a> &desc = _queue.desc(descno);</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <a class="code hl_class" href="classL4virtio_1_1Virtqueue_1_1Desc.html">L4virtio::Virtqueue::Desc</a> &prev = _queue.desc(_pending[handle.head].tail);</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> </div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> prev.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a1cc6e1da64e64f03e33a525501b42c29">next</a> = descno;</div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> prev.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_function" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#a7412bbf6d83eccc67857cf7bddaf6897">next</a>() = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> </div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a8aad49eded68125ad5e94d0688d09828">addr</a> = <a class="code hl_class" href="classL4virtio_1_1Ptr.html">Ptr<void></a>(_status_addr + descno);</div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a55a515e923e62893696c1e6c09ffb62b">len</a> = 1;</div>
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_variable" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#afa64023e5d6237498ec1844c1f0980e0">raw</a> = 0;</div>
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|
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> desc.<a class="code hl_variable" href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">flags</a>.<a class="code hl_function" href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#ae8a176bcd662bb1e50f08fe63147372b">write</a>() = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> </div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> _pending[handle.head].tail = descno;</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordtype">int</span> ret = <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Device.html#af4aa9ac34ce928b9d437f1bb6a2ec216">send_and_wait</a>(_queue, handle.head);</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> status = _status[descno];</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> free_request(handle);</div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> </div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> <span class="keywordflow">if</span> (ret < 0)</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordflow">return</span> ret;</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> </div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="keywordflow">switch</span> (status)</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> {</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a52c6169e59039d478b7f4a9faec15f33">L4VIRTIO_BLOCK_S_OK</a>: <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9aca91ea3bdb5bd82f63784ee66b489d5e">L4_EOK</a>;</div>
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|
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a3a9cefa75787e83824fe4e6e4352aeec">L4VIRTIO_BLOCK_S_IOERR</a>: <span class="keywordflow">return</span> -<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9abf18baaba897b65a370e903268cbac91">L4_EIO</a>;</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a408aaf74a3018b24bd955ec694840d35">L4VIRTIO_BLOCK_S_UNSUPP</a>: <span class="keywordflow">return</span> -<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a29002561c97b1d3664caf3b0fe120553">L4_ENOSYS</a>;</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> }</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> </div>
|
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> <span class="keywordflow">return</span> -<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a54ddbebc30b661c87177b968a77588b8">L4_EINVAL</a>;</div>
|
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> }</div>
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</div>
|
|
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> </div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> <span class="keywordtype">void</span> free_request(Handle handle)</div>
|
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> {</div>
|
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> <span class="keywordflow">if</span> (handle.head != Virtqueue::Eoq</div>
|
|
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> && _pending[handle.head].tail != Virtqueue::Eoq)</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> _queue.<a class="code hl_function" href="classL4virtio_1_1Driver_1_1Virtqueue.html#a0e419c92208996ea9e1d80db3a183d02">free_descriptor</a>(handle.head, _pending[handle.head].tail);</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> _pending[handle.head].tail = Virtqueue::Eoq;</div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> }</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span></div>
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<div class="foldopen" id="foldopen00357" data-start="{" data-end="}">
|
|
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"><a class="line" href="classL4virtio_1_1Driver_1_1Block__device.html#a9f1a7a08e90ca6c1441bd48abc8b574a"> 357</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classL4virtio_1_1Driver_1_1Block__device.html#a9f1a7a08e90ca6c1441bd48abc8b574a">process_used_queue</a>()</div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> {</div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="keywordflow">for</span> (<a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> descno = _queue.find_next_used();</div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> descno != Virtqueue::Eoq;</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> descno = _queue.find_next_used()</div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> )</div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> {</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <span class="keywordflow">if</span> (descno >= _queue.num() || _pending[descno].tail == Virtqueue::Eoq)</div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> <a class="code hl_function" href="namespaceL4Re.html#a3f17984019f06676a7e3eecb41bbb0bb">L4Re::chksys</a>(-<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a29002561c97b1d3664caf3b0fe120553">L4_ENOSYS</a>, <span class="stringliteral">"Bad descriptor number"</span>);</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> </div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> status = _status[descno];</div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> free_request(<a class="code hl_class" href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html">Handle</a>(descno));</div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> </div>
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <span class="keywordflow">if</span> (_pending[descno].callback)</div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> _pending[descno].callback(status);</div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> }</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> }</div>
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</div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> </div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span><span class="keyword">protected</span>:</div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> <a class="code hl_typedef" href="namespaceL4Re_1_1Util.html#a0efccd325a19246334922e58dd973914">L4Re::Util::Unique_cap<L4Re::Dataspace></a> _ds;</div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> <a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<L4Re::Dataspace></a> _queue_ds;</div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> </div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> <a class="code hl_class" href="classL4Re_1_1Rm_1_1Unique__region.html">L4Re::Rm::Unique_region<unsigned char *></a> _queue_region;</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> <a class="code hl_struct" href="structl4virtio__block__header__t.html">l4virtio_block_header_t</a> *_headers;</div>
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<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *_status;</div>
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<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> _header_addr;</div>
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<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> _status_addr;</div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> <a class="code hl_class" href="classL4virtio_1_1Driver_1_1Virtqueue.html">Virtqueue</a> _queue;</div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> std::vector<Request> _pending;</div>
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<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span>};</div>
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</div>
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> </div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span>} }</div>
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<div class="ttc" id="abitops_8h_html"><div class="ttname"><a href="bitops_8h.html">bitops.h</a></div><div class="ttdoc">bit manipulation functions</div></div>
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<div class="ttc" id="aclassL4Re_1_1Env_html_a2706ca11e70845b0a29a5646c9fd54bc"><div class="ttname"><a href="classL4Re_1_1Env.html#a2706ca11e70845b0a29a5646c9fd54bc">L4Re::Env::env</a></div><div class="ttdeci">static Env const * env() noexcept</div><div class="ttdoc">Returns the initial environment for the current task.</div><div class="ttdef"><b>Definition</b> <a href="env_source.html#l00096">env:96</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Mem__alloc_html_a47f3e054def977c17dbf60bfbb4ee05ea24aed4d1617b5d1247f03ff81f828b1c"><div class="ttname"><a href="classL4Re_1_1Mem__alloc.html#a47f3e054def977c17dbf60bfbb4ee05ea24aed4d1617b5d1247f03ff81f828b1c">L4Re::Mem_alloc::Continuous</a></div><div class="ttdeci">@ Continuous</div><div class="ttdoc">Allocate physically contiguous memory.</div><div class="ttdef"><b>Definition</b> <a href="mem__alloc_source.html#l00064">mem_alloc:64</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Mem__alloc_html_a47f3e054def977c17dbf60bfbb4ee05ea7875dadd56bd617a0921da23f43da7ca"><div class="ttname"><a href="classL4Re_1_1Mem__alloc.html#a47f3e054def977c17dbf60bfbb4ee05ea7875dadd56bd617a0921da23f43da7ca">L4Re::Mem_alloc::Pinned</a></div><div class="ttdeci">@ Pinned</div><div class="ttdoc">Deprecated, use L4Re::Dma_space instead.</div><div class="ttdef"><b>Definition</b> <a href="mem__alloc_source.html#l00065">mem_alloc:65</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Rm_1_1Unique__region_html"><div class="ttname"><a href="classL4Re_1_1Rm_1_1Unique__region.html">L4Re::Rm::Unique_region</a></div><div class="ttdoc">Unique region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00435">rm:436</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap_html"><div class="ttname"><a href="classL4_1_1Cap.html">L4::Cap</a></div><div class="ttdoc">C++ interface for capabilities.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00223">capability.h:224</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_1_1Handle_html"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device_1_1Handle.html">L4virtio::Driver::Block_device::Handle</a></div><div class="ttdoc">Handle to an ongoing request.</div><div class="ttdef"><b>Definition</b> <a href="#l00056">virtio-block:57</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_html"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device.html">L4virtio::Driver::Block_device</a></div><div class="ttdoc">Simple class for accessing a virtio block device synchronously.</div><div class="ttdef"><b>Definition</b> <a href="#l00036">virtio-block:37</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_html_a2c2e9924abafe2eff34821b166c6c36f"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device.html#a2c2e9924abafe2eff34821b166c6c36f">L4virtio::Driver::Block_device::send_request</a></div><div class="ttdeci">int send_request(Handle handle)</div><div class="ttdoc">Process request asynchronously.</div><div class="ttdef"><b>Definition</b> <a href="#l00265">virtio-block:265</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_html_a53ec612b1d207804102e34d51f6016cc"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device.html#a53ec612b1d207804102e34d51f6016cc">L4virtio::Driver::Block_device::add_block</a></div><div class="ttdeci">int add_block(Handle handle, Ptr< void > addr, l4_uint32_t size)</div><div class="ttdoc">Add a data block to a request that has already been set up.</div><div class="ttdef"><b>Definition</b> <a href="#l00229">virtio-block:229</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_html_a63f21e71556accc8c669ef80161ecd8e"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device.html#a63f21e71556accc8c669ef80161ecd8e">L4virtio::Driver::Block_device::process_request</a></div><div class="ttdeci">int process_request(Handle handle)</div><div class="ttdoc">Process request synchronously.</div><div class="ttdef"><b>Definition</b> <a href="#l00306">virtio-block:306</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_html_a8263c520da55434d7b570200ef24120a"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device.html#a8263c520da55434d7b570200ef24120a">L4virtio::Driver::Block_device::device_config</a></div><div class="ttdeci">l4virtio_block_config_t const & device_config() const</div><div class="ttdoc">Return a reference to the device configuration.</div><div class="ttdef"><b>Definition</b> <a href="#l00178">virtio-block:178</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_html_a9f1a7a08e90ca6c1441bd48abc8b574a"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device.html#a9f1a7a08e90ca6c1441bd48abc8b574a">L4virtio::Driver::Block_device::process_used_queue</a></div><div class="ttdeci">void process_used_queue()</div><div class="ttdoc">Process and free all items in the used queue.</div><div class="ttdef"><b>Definition</b> <a href="#l00357">virtio-block:357</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_html_af509c2785789dd2daf6b13f3369c6581"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device.html#af509c2785789dd2daf6b13f3369c6581">L4virtio::Driver::Block_device::setup_device</a></div><div class="ttdeci">void setup_device(L4::Cap< L4virtio::Device > srvcap, l4_size_t usermem, void **userdata, Ptr< void > &user_devaddr, L4::Cap< L4Re::Dataspace > qds=L4::Cap< L4Re::Dataspace >(), l4_uint32_t fmask0=-1U, l4_uint32_t fmask1=-1U)</div><div class="ttdoc">Establish a connection to the device and set up shared memory.</div><div class="ttdef"><b>Definition</b> <a href="#l00092">virtio-block:92</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Block__device_html_afdd043c2adbca7fea5eb057f9aa4b483"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Block__device.html#afdd043c2adbca7fea5eb057f9aa4b483">L4virtio::Driver::Block_device::start_request</a></div><div class="ttdeci">Handle start_request(l4_uint64_t sector, l4_uint32_t type, Callback callback)</div><div class="ttdoc">Start the setup of a new request.</div><div class="ttdef"><b>Definition</b> <a href="#l00191">virtio-block:191</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Device_html"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Device.html">L4virtio::Driver::Device</a></div><div class="ttdoc">Client-side implementation for a general virtio device.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00031">l4virtio:32</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Device_html_a07dd8cdbc1ce12dca8af6a540463ae23"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Device.html#a07dd8cdbc1ce12dca8af6a540463ae23">L4virtio::Driver::Device::max_queue_size</a></div><div class="ttdeci">int max_queue_size(int num) const</div><div class="ttdoc">Maximum queue size allowed by the device.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00230">l4virtio:230</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Device_html_a4f8b3d73188c3b6664755b81b80e441c"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Device.html#a4f8b3d73188c3b6664755b81b80e441c">L4virtio::Driver::Device::driver_connect</a></div><div class="ttdeci">void driver_connect(L4::Cap< L4virtio::Device > srvcap, bool manage_notify=true)</div><div class="ttdoc">Contacts the device and starts the initial handshake.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00056">l4virtio:56</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Device_html_a72090d324268b51f3937197748c26853"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Device.html#a72090d324268b51f3937197748c26853">L4virtio::Driver::Device::send</a></div><div class="ttdeci">void send(Virtqueue &queue, l4_uint16_t descno)</div><div class="ttdoc">Send a request to the device.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00312">l4virtio:312</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Device_html_a7a5c440b8353e0bd030a552334e7e5a3"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Device.html#a7a5c440b8353e0bd030a552334e7e5a3">L4virtio::Driver::Device::register_ds</a></div><div class="ttdeci">int register_ds(L4::Cap< L4Re::Dataspace > ds, l4_umword_t offset, l4_umword_t size, l4_uint64_t *devaddr)</div><div class="ttdoc">Share a dataspace with the device.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00196">l4virtio:196</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Device_html_aa557ba0e56fbfc194b07440ecc796061"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Device.html#aa557ba0e56fbfc194b07440ecc796061">L4virtio::Driver::Device::config_queue</a></div><div class="ttdeci">int config_queue(int num, unsigned size, l4_uint64_t desc_addr, l4_uint64_t avail_addr, l4_uint64_t used_addr)</div><div class="ttdoc">Send the virtqueue configuration to the device.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00212">l4virtio:212</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Device_html_af06d27e63124749456ddc8d959231741"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Device.html#af06d27e63124749456ddc8d959231741">L4virtio::Driver::Device::driver_acknowledge</a></div><div class="ttdeci">int driver_acknowledge()</div><div class="ttdoc">Finalize handshake with the device.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00156">l4virtio:156</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Device_html_af4aa9ac34ce928b9d437f1bb6a2ec216"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Device.html#af4aa9ac34ce928b9d437f1bb6a2ec216">L4virtio::Driver::Device::send_and_wait</a></div><div class="ttdeci">int send_and_wait(Virtqueue &queue, l4_uint16_t descno)</div><div class="ttdoc">Send a request to the device and wait for it to be processed.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00247">l4virtio:247</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Virtqueue_html"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Virtqueue.html">L4virtio::Driver::Virtqueue</a></div><div class="ttdoc">Driver-side implementation of a Virtqueue.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00470">virtqueue:471</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Driver_1_1Virtqueue_html_a0e419c92208996ea9e1d80db3a183d02"><div class="ttname"><a href="classL4virtio_1_1Driver_1_1Virtqueue.html#a0e419c92208996ea9e1d80db3a183d02">L4virtio::Driver::Virtqueue::free_descriptor</a></div><div class="ttdeci">void free_descriptor(l4_uint16_t head, l4_uint16_t tail)</div><div class="ttdoc">Free a chained list of descriptors in the descriptor queue.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00631">virtqueue:631</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Ptr_html"><div class="ttname"><a href="classL4virtio_1_1Ptr.html">L4virtio::Ptr</a></div><div class="ttdoc">Pointer used in virtio descriptors.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00047">virtqueue:48</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Virtqueue_1_1Desc_html"><div class="ttname"><a href="classL4virtio_1_1Virtqueue_1_1Desc.html">L4virtio::Virtqueue::Desc</a></div><div class="ttdoc">Descriptor in the descriptor table.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00086">virtqueue:87</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Virtqueue_1_1Desc_html_a1cc6e1da64e64f03e33a525501b42c29"><div class="ttname"><a href="classL4virtio_1_1Virtqueue_1_1Desc.html#a1cc6e1da64e64f03e33a525501b42c29">L4virtio::Virtqueue::Desc::next</a></div><div class="ttdeci">l4_uint16_t next</div><div class="ttdoc">Index of the next chained descriptor.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00111">virtqueue:111</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Virtqueue_1_1Desc_html_a55a515e923e62893696c1e6c09ffb62b"><div class="ttname"><a href="classL4virtio_1_1Virtqueue_1_1Desc.html#a55a515e923e62893696c1e6c09ffb62b">L4virtio::Virtqueue::Desc::len</a></div><div class="ttdeci">l4_uint32_t len</div><div class="ttdoc">Length of described buffer.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00109">virtqueue:109</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Virtqueue_1_1Desc_html_a565cb9c1def0f16e8e46201e588d4b19"><div class="ttname"><a href="classL4virtio_1_1Virtqueue_1_1Desc.html#a565cb9c1def0f16e8e46201e588d4b19">L4virtio::Virtqueue::Desc::flags</a></div><div class="ttdeci">Flags flags</div><div class="ttdoc">Descriptor flags.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00110">virtqueue:110</a></div></div>
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<div class="ttc" id="aclassL4virtio_1_1Virtqueue_1_1Desc_html_a8aad49eded68125ad5e94d0688d09828"><div class="ttname"><a href="classL4virtio_1_1Virtqueue_1_1Desc.html#a8aad49eded68125ad5e94d0688d09828">L4virtio::Virtqueue::Desc::addr</a></div><div class="ttdeci">Ptr< void > addr</div><div class="ttdoc">Address stored in descriptor.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00108">virtqueue:108</a></div></div>
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<div class="ttc" id="adataspace_html"><div class="ttname"><a href="dataspace.html">dataspace</a></div><div class="ttdoc">Dataspace interface.</div></div>
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<div class="ttc" id="aenv_html"><div class="ttname"><a href="env.html">env</a></div><div class="ttdoc">Environment interface.</div></div>
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<div class="ttc" id="aerror__helper_html"><div class="ttname"><a href="error__helper.html">error_helper</a></div><div class="ttdoc">Error helper.</div></div>
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<div class="ttc" id="afactory_html"><div class="ttname"><a href="factory.html">factory</a></div><div class="ttdoc">Common factory related definitions.</div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_ga08c1e83a068ded7add134b188cd44967"><div class="ttname"><a href="group__l4__basic__types.html#ga08c1e83a068ded7add134b188cd44967">l4_size_t</a></div><div class="ttdeci">unsigned int l4_size_t</div><div class="ttdoc">Unsigned size type.</div><div class="ttdef"><b>Definition</b> <a href="arm_2l4_2sys_2l4int_8h_source.html#l00024">l4int.h:24</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_ggab4c8abc71ffa221a25c1ca5840a354f9a29002561c97b1d3664caf3b0fe120553"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a29002561c97b1d3664caf3b0fe120553">L4_ENOSYS</a></div><div class="ttdeci">@ L4_ENOSYS</div><div class="ttdoc">No sys.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00050">err.h:50</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9a54ddbebc30b661c87177b968a77588b8"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a54ddbebc30b661c87177b968a77588b8">L4_EINVAL</a></div><div class="ttdeci">@ L4_EINVAL</div><div class="ttdoc">Invalid argument.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00046">err.h:46</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9a96c4464d149a63301a5314ecd1ff53d9"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9a96c4464d149a63301a5314ecd1ff53d9">L4_ENODEV</a></div><div class="ttdeci">@ L4_ENODEV</div><div class="ttdoc">No such thing.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00044">err.h:44</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9abf18baaba897b65a370e903268cbac91"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9abf18baaba897b65a370e903268cbac91">L4_EIO</a></div><div class="ttdeci">@ L4_EIO</div><div class="ttdoc">I/O error.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00035">err.h:35</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9aca91ea3bdb5bd82f63784ee66b489d5e"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9aca91ea3bdb5bd82f63784ee66b489d5e">L4_EOK</a></div><div class="ttdeci">@ L4_EOK</div><div class="ttdoc">Ok.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00032">err.h:32</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9ad0af5659bdc7c7a0b3ac3a749d0da8e7"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9ad0af5659bdc7c7a0b3ac3a749d0da8e7">L4_EAGAIN</a></div><div class="ttdeci">@ L4_EAGAIN</div><div class="ttdoc">Try again.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00038">err.h:38</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_ga96e3b2d8e69308aecbb11d1d24f61662"><div class="ttname"><a href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a></div><div class="ttdeci">l4_addr_t l4_round_page(l4_addr_t address) L4_NOTHROW</div><div class="ttdoc">Round address up to the next page.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00473">consts.h:473</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_gad2f7e71d6265b2735f730dc90c54539a"><div class="ttname"><a href="group__l4__memory__api.html#gad2f7e71d6265b2735f730dc90c54539a">L4_PAGESHIFT</a></div><div class="ttdeci">#define L4_PAGESHIFT</div><div class="ttdoc">Size of a page, log2-based.</div><div class="ttdef"><b>Definition</b> <a href="arm_2l4_2sys_2consts_8h_source.html#l00026">consts.h:26</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_gae876a4c6e0f21b2ecbf17863dc7d11e4"><div class="ttname"><a href="group__l4__memory__api.html#gae876a4c6e0f21b2ecbf17863dc7d11e4">l4_round_size</a></div><div class="ttdeci">l4_addr_t l4_round_size(l4_addr_t value, unsigned char bits) L4_NOTHROW</div><div class="ttdoc">Round value up to the next alignment with bits size.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00484">consts.h:484</a></div></div>
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<div class="ttc" id="agroup__l4virtio__block_html_ggafefb8205febb8b89e612e86f0c89eaa9a3a9cefa75787e83824fe4e6e4352aeec"><div class="ttname"><a href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a3a9cefa75787e83824fe4e6e4352aeec">L4VIRTIO_BLOCK_S_IOERR</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_S_IOERR</div><div class="ttdoc">IO error on device.</div><div class="ttdef"><b>Definition</b> <a href="virtio__block_8h_source.html#l00035">virtio_block.h:35</a></div></div>
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<div class="ttc" id="agroup__l4virtio__block_html_ggafefb8205febb8b89e612e86f0c89eaa9a408aaf74a3018b24bd955ec694840d35"><div class="ttname"><a href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a408aaf74a3018b24bd955ec694840d35">L4VIRTIO_BLOCK_S_UNSUPP</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_S_UNSUPP</div><div class="ttdoc">Operation is not supported.</div><div class="ttdef"><b>Definition</b> <a href="virtio__block_8h_source.html#l00036">virtio_block.h:36</a></div></div>
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<div class="ttc" id="agroup__l4virtio__block_html_ggafefb8205febb8b89e612e86f0c89eaa9a52c6169e59039d478b7f4a9faec15f33"><div class="ttname"><a href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a52c6169e59039d478b7f4a9faec15f33">L4VIRTIO_BLOCK_S_OK</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_S_OK</div><div class="ttdoc">Request finished successfully.</div><div class="ttdef"><b>Definition</b> <a href="virtio__block_8h_source.html#l00034">virtio_block.h:34</a></div></div>
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<div class="ttc" id="agroup__l4virtio__transport_html_ggaa3812d621d81dd6a7101d739153b6c3ba10cc3c1991081bd51ac54a45f0d407c8"><div class="ttname"><a href="group__l4virtio__transport.html#ggaa3812d621d81dd6a7101d739153b6c3ba10cc3c1991081bd51ac54a45f0d407c8">L4VIRTIO_ID_BLOCK</a></div><div class="ttdeci">@ L4VIRTIO_ID_BLOCK</div><div class="ttdoc">General block device.</div><div class="ttdef"><b>Definition</b> <a href="virtio_8h_source.html#l00065">virtio.h:65</a></div></div>
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<div class="ttc" id="al4_2sys_2consts_8h_html"><div class="ttname"><a href="l4_2sys_2consts_8h.html">consts.h</a></div><div class="ttdoc">Common constants.</div></div>
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<div class="ttc" id="al4_2util_2atomic_8h_html"><div class="ttname"><a href="l4_2util_2atomic_8h.html">atomic.h</a></div><div class="ttdoc">atomic operations header and generic implementations</div></div>
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<div class="ttc" id="anamespaceL4Re_1_1Util_html_a0c4ee77222764600950f2ebe23a1e45a"><div class="ttname"><a href="namespaceL4Re_1_1Util.html#a0c4ee77222764600950f2ebe23a1e45a">L4Re::Util::make_unique_cap</a></div><div class="ttdeci">Unique_cap< T > make_unique_cap()</div><div class="ttdoc">Allocate a capability slot and wrap it in an Unique_cap.</div><div class="ttdef"><b>Definition</b> <a href="util_2unique__cap_source.html#l00055">unique_cap:55</a></div></div>
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<div class="ttc" id="anamespaceL4Re_1_1Util_html_a0efccd325a19246334922e58dd973914"><div class="ttname"><a href="namespaceL4Re_1_1Util.html#a0efccd325a19246334922e58dd973914">L4Re::Util::Unique_cap</a></div><div class="ttdeci">L4::Detail::Unique_cap_impl< T, Smart_cap_auto< L4_FP_ALL_SPACES > > Unique_cap</div><div class="ttdoc">Unique capability that implements automatic free and unmap of the capability selector.</div><div class="ttdef"><b>Definition</b> <a href="util_2unique__cap_source.html#l00043">unique_cap:43</a></div></div>
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<div class="ttc" id="anamespaceL4Re_html_a3f17984019f06676a7e3eecb41bbb0bb"><div class="ttname"><a href="namespaceL4Re.html#a3f17984019f06676a7e3eecb41bbb0bb">L4Re::chksys</a></div><div class="ttdeci">long chksys(long err, char const *extra="", long ret=0)</div><div class="ttdoc">Generate C++ exception on error.</div><div class="ttdef"><b>Definition</b> <a href="error__helper_source.html#l00072">error_helper:72</a></div></div>
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<div class="ttc" id="anamespaceL4Re_html_a64b057254a760643ba67a9ed452fede8"><div class="ttname"><a href="namespaceL4Re.html#a64b057254a760643ba67a9ed452fede8">L4Re::chkcap</a></div><div class="ttdeci">T chkcap(T &&cap, char const *extra="", long err=-L4_ENOMEM)</div><div class="ttdoc">Check for valid capability or raise C++ exception.</div><div class="ttdef"><b>Definition</b> <a href="error__helper_source.html#l00149">error_helper:149</a></div></div>
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<div class="ttc" id="anamespaceL4_1_1Ipc_html_aa6b9422f850eb175240c9d18c5cc708c"><div class="ttname"><a href="namespaceL4_1_1Ipc.html#aa6b9422f850eb175240c9d18c5cc708c">L4::Ipc::make_cap_rw</a></div><div class="ttdeci">Cap< T > make_cap_rw(L4::Cap< T > cap) noexcept</div><div class="ttdoc">Make an L4::Ipc::Cap<T> for the given capability with L4_CAP_FPAGE_RW rights.</div><div class="ttdef"><b>Definition</b> <a href="ipc__types_source.html#l00795">ipc_types:795</a></div></div>
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<div class="ttc" id="anamespaceL4virtio_html"><div class="ttname"><a href="namespaceL4virtio.html">L4virtio</a></div><div class="ttdoc">L4-VIRTIO Transport C++ API.</div><div class="ttdef"><b>Definition</b> <a href="client_2l4virtio_source.html#l00026">l4virtio:26</a></div></div>
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<div class="ttc" id="asemaphore_html"><div class="ttname"><a href="semaphore.html">semaphore</a></div><div class="ttdoc">Semaphore class definition.</div></div>
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<div class="ttc" id="astructL4Re_1_1Rm_1_1F_html_a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a"><div class="ttname"><a href="structL4Re_1_1Rm_1_1F.html#a9707a14d822d3f60aa6a97cb16b2a989a579e389b46e438a64f3f44d9cf19f26a">L4Re::Rm::F::RW</a></div><div class="ttdeci">@ RW</div><div class="ttdoc">Readable and writable region.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00139">rm:139</a></div></div>
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<div class="ttc" id="astructL4Re_1_1Rm_1_1F_html_adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a"><div class="ttname"><a href="structL4Re_1_1Rm_1_1F.html#adec4d26077e34d9586891ac0489e0041a067b0bc28378717b6962241c621caa0a">L4Re::Rm::F::Search_addr</a></div><div class="ttdeci">@ Search_addr</div><div class="ttdoc">Search for a suitable address range.</div><div class="ttdef"><b>Definition</b> <a href="rm_source.html#l00114">rm:114</a></div></div>
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<div class="ttc" id="astructL4virtio_1_1Virtqueue_1_1Desc_1_1Flags_html_a7412bbf6d83eccc67857cf7bddaf6897"><div class="ttname"><a href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#a7412bbf6d83eccc67857cf7bddaf6897">L4virtio::Virtqueue::Desc::Flags::next</a></div><div class="ttdeci">constexpr next_bfm_t::Val next() const</div><div class="ttdoc">Get the next bits (0 to 0) of raw.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00101">virtqueue:101</a></div></div>
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<div class="ttc" id="astructL4virtio_1_1Virtqueue_1_1Desc_1_1Flags_html_ae8a176bcd662bb1e50f08fe63147372b"><div class="ttname"><a href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#ae8a176bcd662bb1e50f08fe63147372b">L4virtio::Virtqueue::Desc::Flags::write</a></div><div class="ttdeci">constexpr write_bfm_t::Val write() const</div><div class="ttdoc">Get the write bits (1 to 1) of raw.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00103">virtqueue:103</a></div></div>
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<div class="ttc" id="astructL4virtio_1_1Virtqueue_1_1Desc_1_1Flags_html_afa64023e5d6237498ec1844c1f0980e0"><div class="ttname"><a href="structL4virtio_1_1Virtqueue_1_1Desc_1_1Flags.html#afa64023e5d6237498ec1844c1f0980e0">L4virtio::Virtqueue::Desc::Flags::raw</a></div><div class="ttdeci">l4_uint16_t raw</div><div class="ttdoc">raw flags value of a virtio descriptor.</div><div class="ttdef"><b>Definition</b> <a href="virtqueue_source.html#l00094">virtqueue:94</a></div></div>
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<div class="ttc" id="astructl4virtio__block__config__t_html"><div class="ttname"><a href="structl4virtio__block__config__t.html">l4virtio_block_config_t</a></div><div class="ttdoc">Device configuration for block devices.</div><div class="ttdef"><b>Definition</b> <a href="virtio__block_8h_source.html#l00068">virtio_block.h:69</a></div></div>
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<div class="ttc" id="astructl4virtio__block__header__t_html"><div class="ttname"><a href="structl4virtio__block__header__t.html">l4virtio_block_header_t</a></div><div class="ttdoc">Header structure of a request for a block device.</div><div class="ttdef"><b>Definition</b> <a href="virtio__block_8h_source.html#l00042">virtio_block.h:43</a></div></div>
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<div class="ttc" id="astructl4virtio__block__header__t_html_a00b6656ed8101dbc72030a39baf5bda6"><div class="ttname"><a href="structl4virtio__block__header__t.html#a00b6656ed8101dbc72030a39baf5bda6">l4virtio_block_header_t::type</a></div><div class="ttdeci">l4_uint32_t type</div><div class="ttdoc">Kind of request, see L4virtio_block_operations.</div><div class="ttdef"><b>Definition</b> <a href="virtio__block_8h_source.html#l00044">virtio_block.h:44</a></div></div>
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<div class="ttc" id="astructl4virtio__block__header__t_html_a497bbdd38d2493d5b8d4f2e98d06ed7d"><div class="ttname"><a href="structl4virtio__block__header__t.html#a497bbdd38d2493d5b8d4f2e98d06ed7d">l4virtio_block_header_t::ioprio</a></div><div class="ttdeci">l4_uint32_t ioprio</div><div class="ttdoc">Priority (unused).</div><div class="ttdef"><b>Definition</b> <a href="virtio__block_8h_source.html#l00045">virtio_block.h:45</a></div></div>
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<div class="ttc" id="astructl4virtio__block__header__t_html_af92759ca15e9cd5c8d8491aeb81b3164"><div class="ttname"><a href="structl4virtio__block__header__t.html#af92759ca15e9cd5c8d8491aeb81b3164">l4virtio_block_header_t::sector</a></div><div class="ttdeci">l4_uint64_t sector</div><div class="ttdoc">First sector to read/write.</div><div class="ttdef"><b>Definition</b> <a href="virtio__block_8h_source.html#l00046">virtio_block.h:46</a></div></div>
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<div class="ttc" id="autil_2unique__cap_html"><div class="ttname"><a href="util_2unique__cap.html">unique_cap</a></div><div class="ttdoc">Unique_cap / Unique_del_cap.</div></div>
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<li class="navelem"><b>l4</b></li><li class="navelem"><b>l4virtio</b></li><li class="navelem"><b>client</b></li><li class="navelem"><b>virtio-block</b></li>
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