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Viktor Reusch
2025-09-12 15:55:45 +02:00
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<div class="headertitle"><div class="title">virtio_block.h</div></div>
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<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/* SPDX-License-Identifier: MIT */</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">/*</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * (c) 2014 Sarah Hoffmann &lt;sarah.hoffmann@kernkonzept.com&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> */</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> </div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#pragma once</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &lt;<a class="code" href="l4_2sys_2types_8h.html">l4/sys/types.h</a>&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span></div>
<div class="foldopen" id="foldopen00019" data-start="{" data-end="};">
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#ga9ef2000d81e91613a9f39ef12a0ec52d"> 19</a></span><span class="keyword">enum</span> <a class="code hl_enumeration" href="group__l4virtio__block.html#ga9ef2000d81e91613a9f39ef12a0ec52d">L4virtio_block_operations</a></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span>{</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52daa0a6fc1b7956ec00ba3128faf185c680"> 21</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52daa0a6fc1b7956ec00ba3128faf185c680">L4VIRTIO_BLOCK_T_IN</a> = 0, </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52daa85ec590b2a7f0c5c27f9b2dbe6d1863"> 22</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52daa85ec590b2a7f0c5c27f9b2dbe6d1863">L4VIRTIO_BLOCK_T_OUT</a> = 1, </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da5aa7f985f0af737980e39fc98f6574a0"> 23</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da5aa7f985f0af737980e39fc98f6574a0">L4VIRTIO_BLOCK_T_FLUSH</a> = 4, </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da24408f89b892da0cf1f448064cf3e20e"> 24</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da24408f89b892da0cf1f448064cf3e20e">L4VIRTIO_BLOCK_T_GET_ID</a> = 8, </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da06358452282b6237efb751b56ffcda59"> 25</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da06358452282b6237efb751b56ffcda59">L4VIRTIO_BLOCK_T_DISCARD</a> = 11, </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52dac893404d90eed7cd41929bc710249c49"> 26</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52dac893404d90eed7cd41929bc710249c49">L4VIRTIO_BLOCK_T_WRITE_ZEROES</a> = 13, </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span>};</div>
</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span></div>
<div class="foldopen" id="foldopen00032" data-start="{" data-end="};">
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#gafefb8205febb8b89e612e86f0c89eaa9"> 32</a></span><span class="keyword">enum</span> <a class="code hl_enumeration" href="group__l4virtio__block.html#gafefb8205febb8b89e612e86f0c89eaa9">L4virtio_block_status</a></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span>{</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a52c6169e59039d478b7f4a9faec15f33"> 34</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a52c6169e59039d478b7f4a9faec15f33">L4VIRTIO_BLOCK_S_OK</a> = 0, </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a3a9cefa75787e83824fe4e6e4352aeec"> 35</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a3a9cefa75787e83824fe4e6e4352aeec">L4VIRTIO_BLOCK_S_IOERR</a> = 1, </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a408aaf74a3018b24bd955ec694840d35"> 36</a></span> <a class="code hl_enumvalue" href="group__l4virtio__block.html#ggafefb8205febb8b89e612e86f0c89eaa9a408aaf74a3018b24bd955ec694840d35">L4VIRTIO_BLOCK_S_UNSUPP</a> = 2 </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span>};</div>
</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span></div>
<div class="foldopen" id="foldopen00042" data-start="{" data-end="};">
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="structl4virtio__block__header__t.html"> 42</a></span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="structl4virtio__block__header__t.html">l4virtio_block_header_t</a></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span>{</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"><a class="line" href="structl4virtio__block__header__t.html#a00b6656ed8101dbc72030a39baf5bda6"> 44</a></span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> <a class="code hl_variable" href="structl4virtio__block__header__t.html#a00b6656ed8101dbc72030a39baf5bda6">type</a>; </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="structl4virtio__block__header__t.html#a497bbdd38d2493d5b8d4f2e98d06ed7d"> 45</a></span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> <a class="code hl_variable" href="structl4virtio__block__header__t.html#a497bbdd38d2493d5b8d4f2e98d06ed7d">ioprio</a>; </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="structl4virtio__block__header__t.html#af92759ca15e9cd5c8d8491aeb81b3164"> 46</a></span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> <a class="code hl_variable" href="structl4virtio__block__header__t.html#af92759ca15e9cd5c8d8491aeb81b3164">sector</a>; </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#gaff308435ef6047fb0934285b223be657"> 47</a></span>} <a class="code hl_struct" href="structl4virtio__block__header__t.html">l4virtio_block_header_t</a>;</div>
</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="keyword">enum</span> L4virtio_block_discard_flags_t</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span>{</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> L4VIRTIO_BLOCK_DISCARD_F_UNMAP = 0x00000001UL,</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> L4VIRTIO_BLOCK_DISCARD_F_RESERVED = 0xFFFFFFFEUL,</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span>};</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span></div>
<div class="foldopen" id="foldopen00058" data-start="{" data-end="};">
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"><a class="line" href="structl4virtio__block__discard__t.html"> 58</a></span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="structl4virtio__block__discard__t.html">l4virtio_block_discard_t</a></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span>{</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> sector;</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> num_sectors;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> flags;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#ga3bf4996a97f916b24a84c2e7adf832ba"> 63</a></span>} <a class="code hl_struct" href="structl4virtio__block__discard__t.html">l4virtio_block_discard_t</a>;</div>
</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span></div>
<div class="foldopen" id="foldopen00068" data-start="{" data-end="};">
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"><a class="line" href="structl4virtio__block__config__t.html"> 68</a></span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="structl4virtio__block__config__t.html">l4virtio_block_config_t</a></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span>{</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"><a class="line" href="structl4virtio__block__config__t.html#a8d33adcab68fa2ad5eb07f79717c8891"> 70</a></span> <a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> <a class="code hl_variable" href="structl4virtio__block__config__t.html#a8d33adcab68fa2ad5eb07f79717c8891">capacity</a>; </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="structl4virtio__block__config__t.html#a5f02099483936b3a7f3092ea6a2626be"> 71</a></span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> <a class="code hl_variable" href="structl4virtio__block__config__t.html#a5f02099483936b3a7f3092ea6a2626be">size_max</a>; </div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"><a class="line" href="structl4virtio__block__config__t.html#a2f43aba804408e4f64a5d77ea350219e"> 72</a></span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> <a class="code hl_variable" href="structl4virtio__block__config__t.html#a2f43aba804408e4f64a5d77ea350219e">seg_max</a>; </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">struct </span>l4virtio_block_config_geometry_t</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> {</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> cylinders;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a> heads;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a> sectors;</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> } geometry;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"><a class="line" href="structl4virtio__block__config__t.html#a356d793a062eee80524d105db9775c71"> 79</a></span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> <a class="code hl_variable" href="structl4virtio__block__config__t.html#a356d793a062eee80524d105db9775c71">blk_size</a>; </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">struct </span>l4virtio_block_config_topology_t</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> {</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a> physical_block_exp;</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a> alignment_offset;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> min_io_size;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> opt_io_size;</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> } topology;</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a> writeback;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a> unused0[1];</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gae8d67914f723bf843df6f311ad2619a2">l4_uint16_t</a> num_queues;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> max_discard_sectors;</div>
<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> max_discard_seg;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> discard_sector_alignment;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> max_write_zeroes_sectors;</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <a class="code hl_typedef" href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a> max_write_zeroes_seg;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a> write_zeroes_may_unmap;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a> unused1[3];</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"><a class="line" href="group__l4virtio__block.html#ga8820a62d50d11986b9adf545e1c160a0"> 101</a></span>} <a class="code hl_struct" href="structl4virtio__block__config__t.html">l4virtio_block_config_t</a>;</div>
</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span></div>
<div class="ttc" id="agroup__l4__basic__types_html_ga9678dc2e6bf3e4d8ec950162576b0fad"><div class="ttname"><a href="group__l4__basic__types.html#ga9678dc2e6bf3e4d8ec950162576b0fad">l4_uint8_t</a></div><div class="ttdeci">unsigned char l4_uint8_t</div><div class="ttdoc">Unsigned 8bit value.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00025">l4int.h:25</a></div></div>
<div class="ttc" id="agroup__l4__basic__types_html_gac1d09f3e382e711b776931f10e6e1e5a"><div class="ttname"><a href="group__l4__basic__types.html#gac1d09f3e382e711b776931f10e6e1e5a">l4_uint32_t</a></div><div class="ttdeci">unsigned int l4_uint32_t</div><div class="ttdoc">Unsigned 32bit value.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00029">l4int.h:29</a></div></div>
<div class="ttc" id="agroup__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>
<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>
<div class="ttc" id="agroup__l4virtio__block_html_ga9ef2000d81e91613a9f39ef12a0ec52d"><div class="ttname"><a href="group__l4virtio__block.html#ga9ef2000d81e91613a9f39ef12a0ec52d">L4virtio_block_operations</a></div><div class="ttdeci">L4virtio_block_operations</div><div class="ttdoc">Kinds of operation over a block device.</div><div class="ttdef"><b>Definition</b> <a href="#l00019">virtio_block.h:20</a></div></div>
<div class="ttc" id="agroup__l4virtio__block_html_gafefb8205febb8b89e612e86f0c89eaa9"><div class="ttname"><a href="group__l4virtio__block.html#gafefb8205febb8b89e612e86f0c89eaa9">L4virtio_block_status</a></div><div class="ttdeci">L4virtio_block_status</div><div class="ttdoc">Status of a finished block request.</div><div class="ttdef"><b>Definition</b> <a href="#l00032">virtio_block.h:33</a></div></div>
<div class="ttc" id="agroup__l4virtio__block_html_gga9ef2000d81e91613a9f39ef12a0ec52da06358452282b6237efb751b56ffcda59"><div class="ttname"><a href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da06358452282b6237efb751b56ffcda59">L4VIRTIO_BLOCK_T_DISCARD</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_T_DISCARD</div><div class="ttdoc">Discard a range of sectors.</div><div class="ttdef"><b>Definition</b> <a href="#l00025">virtio_block.h:25</a></div></div>
<div class="ttc" id="agroup__l4virtio__block_html_gga9ef2000d81e91613a9f39ef12a0ec52da24408f89b892da0cf1f448064cf3e20e"><div class="ttname"><a href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da24408f89b892da0cf1f448064cf3e20e">L4VIRTIO_BLOCK_T_GET_ID</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_T_GET_ID</div><div class="ttdoc">Get device ID.</div><div class="ttdef"><b>Definition</b> <a href="#l00024">virtio_block.h:24</a></div></div>
<div class="ttc" id="agroup__l4virtio__block_html_gga9ef2000d81e91613a9f39ef12a0ec52da5aa7f985f0af737980e39fc98f6574a0"><div class="ttname"><a href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52da5aa7f985f0af737980e39fc98f6574a0">L4VIRTIO_BLOCK_T_FLUSH</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_T_FLUSH</div><div class="ttdoc">Flush data to disk.</div><div class="ttdef"><b>Definition</b> <a href="#l00023">virtio_block.h:23</a></div></div>
<div class="ttc" id="agroup__l4virtio__block_html_gga9ef2000d81e91613a9f39ef12a0ec52daa0a6fc1b7956ec00ba3128faf185c680"><div class="ttname"><a href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52daa0a6fc1b7956ec00ba3128faf185c680">L4VIRTIO_BLOCK_T_IN</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_T_IN</div><div class="ttdoc">Read from device.</div><div class="ttdef"><b>Definition</b> <a href="#l00021">virtio_block.h:21</a></div></div>
<div class="ttc" id="agroup__l4virtio__block_html_gga9ef2000d81e91613a9f39ef12a0ec52daa85ec590b2a7f0c5c27f9b2dbe6d1863"><div class="ttname"><a href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52daa85ec590b2a7f0c5c27f9b2dbe6d1863">L4VIRTIO_BLOCK_T_OUT</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_T_OUT</div><div class="ttdoc">Write to device.</div><div class="ttdef"><b>Definition</b> <a href="#l00022">virtio_block.h:22</a></div></div>
<div class="ttc" id="agroup__l4virtio__block_html_gga9ef2000d81e91613a9f39ef12a0ec52dac893404d90eed7cd41929bc710249c49"><div class="ttname"><a href="group__l4virtio__block.html#gga9ef2000d81e91613a9f39ef12a0ec52dac893404d90eed7cd41929bc710249c49">L4VIRTIO_BLOCK_T_WRITE_ZEROES</a></div><div class="ttdeci">@ L4VIRTIO_BLOCK_T_WRITE_ZEROES</div><div class="ttdoc">Write zeroes to a range of sectors.</div><div class="ttdef"><b>Definition</b> <a href="#l00026">virtio_block.h:26</a></div></div>
<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="#l00035">virtio_block.h:35</a></div></div>
<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="#l00036">virtio_block.h:36</a></div></div>
<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="#l00034">virtio_block.h:34</a></div></div>
<div class="ttc" id="al4_2sys_2types_8h_html"><div class="ttname"><a href="l4_2sys_2types_8h.html">types.h</a></div><div class="ttdoc">Common L4 ABI Data Types.</div></div>
<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="#l00068">virtio_block.h:69</a></div></div>
<div class="ttc" id="astructl4virtio__block__config__t_html_a2f43aba804408e4f64a5d77ea350219e"><div class="ttname"><a href="structl4virtio__block__config__t.html#a2f43aba804408e4f64a5d77ea350219e">l4virtio_block_config_t::seg_max</a></div><div class="ttdeci">l4_uint32_t seg_max</div><div class="ttdoc">Maximum number of segments per request.</div><div class="ttdef"><b>Definition</b> <a href="#l00072">virtio_block.h:72</a></div></div>
<div class="ttc" id="astructl4virtio__block__config__t_html_a356d793a062eee80524d105db9775c71"><div class="ttname"><a href="structl4virtio__block__config__t.html#a356d793a062eee80524d105db9775c71">l4virtio_block_config_t::blk_size</a></div><div class="ttdeci">l4_uint32_t blk_size</div><div class="ttdoc">Block size of underlying disk.</div><div class="ttdef"><b>Definition</b> <a href="#l00079">virtio_block.h:79</a></div></div>
<div class="ttc" id="astructl4virtio__block__config__t_html_a5f02099483936b3a7f3092ea6a2626be"><div class="ttname"><a href="structl4virtio__block__config__t.html#a5f02099483936b3a7f3092ea6a2626be">l4virtio_block_config_t::size_max</a></div><div class="ttdeci">l4_uint32_t size_max</div><div class="ttdoc">Maximum size of a single segment.</div><div class="ttdef"><b>Definition</b> <a href="#l00071">virtio_block.h:71</a></div></div>
<div class="ttc" id="astructl4virtio__block__config__t_html_a8d33adcab68fa2ad5eb07f79717c8891"><div class="ttname"><a href="structl4virtio__block__config__t.html#a8d33adcab68fa2ad5eb07f79717c8891">l4virtio_block_config_t::capacity</a></div><div class="ttdeci">l4_uint64_t capacity</div><div class="ttdoc">Capacity of device in 512-byte sectors.</div><div class="ttdef"><b>Definition</b> <a href="#l00070">virtio_block.h:70</a></div></div>
<div class="ttc" id="astructl4virtio__block__discard__t_html"><div class="ttname"><a href="structl4virtio__block__discard__t.html">l4virtio_block_discard_t</a></div><div class="ttdoc">Structure used for the write zeroes and discard commands.</div><div class="ttdef"><b>Definition</b> <a href="#l00058">virtio_block.h:59</a></div></div>
<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="#l00042">virtio_block.h:43</a></div></div>
<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="#l00044">virtio_block.h:44</a></div></div>
<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="#l00045">virtio_block.h:45</a></div></div>
<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="#l00046">virtio_block.h:46</a></div></div>
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