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   <div id="projectname">Hardware Locality (hwloc)
   &#160;<span id="projectnumber">2.4.1</span>
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<div class="title">openfabrics-verbs.h</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright © 2009 CNRS</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright © 2009-2020 Inria.  All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright © 2009-2010 Université Bordeaux</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Copyright © 2009-2011 Cisco Systems, Inc.  All rights reserved.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * See COPYING in top-level directory.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160; </div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#ifndef HWLOC_OPENFABRICS_VERBS_H</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#define HWLOC_OPENFABRICS_VERBS_H</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160; </div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &quot;hwloc.h&quot;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &quot;hwloc/autogen/config.h&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#ifdef HWLOC_LINUX_SYS</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &quot;hwloc/linux.h&quot;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &lt;infiniband/verbs.h&gt;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160; </div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> {</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="keyword">static</span> __hwloc_inline <span class="keywordtype">int</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="a00230.html#ga3ea0d838c1e7f1671b35687aae2da6ae">   62</a></span>&#160;<a class="code" href="a00230.html#ga3ea0d838c1e7f1671b35687aae2da6ae">hwloc_ibv_get_device_cpuset</a>(<a class="code" href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology __hwloc_attribute_unused,</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                            <span class="keyword">struct</span> ibv_device *ibdev, <a class="code" href="a00189.html#ga4bbf39b68b6f568fb92739e7c0ea7801">hwloc_cpuset_t</a> set)</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;{</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="preprocessor">#ifdef HWLOC_LINUX_SYS</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;  <span class="comment">/* If we&#39;re on Linux, use the verbs-provided sysfs mechanism to</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="comment">     get the local cpus */</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="preprocessor">#define HWLOC_OPENFABRICS_VERBS_SYSFS_PATH_MAX 128</span></div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;  <span class="keywordtype">char</span> path[HWLOC_OPENFABRICS_VERBS_SYSFS_PATH_MAX];</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160; </div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;  <span class="keywordflow">if</span> (!<a class="code" href="a00199.html#ga68ffdcfd9175cdf40709801092f18017">hwloc_topology_is_thissystem</a>(topology)) {</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    errno = EINVAL;</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  }</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160; </div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;  sprintf(path, <span class="stringliteral">&quot;/sys/class/infiniband/%s/device/local_cpus&quot;</span>,</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;          ibv_get_device_name(ibdev));</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="a00220.html#gaf72d83e273803226ce772973e37b85de">hwloc_linux_read_path_as_cpumask</a>(path, set) &lt; 0</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;      || <a class="code" href="a00211.html#ga5b64be28f5a7176ed8ad0d6a90bdf108">hwloc_bitmap_iszero</a>(set))</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <a class="code" href="a00211.html#ga72a29824798b48784b8217471ec8f14c">hwloc_bitmap_copy</a>(set, <a class="code" href="a00208.html#gaee30e03391c1ed7dfd617fb5c7bbb033">hwloc_topology_get_complete_cpuset</a>(topology));</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  <span class="comment">/* Non-Linux systems simply get a full cpuset */</span></div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;  <a class="code" href="a00211.html#ga72a29824798b48784b8217471ec8f14c">hwloc_bitmap_copy</a>(set, <a class="code" href="a00208.html#gaee30e03391c1ed7dfd617fb5c7bbb033">hwloc_topology_get_complete_cpuset</a>(topology));</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;}</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160; </div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="keyword">static</span> __hwloc_inline <a class="code" href="a00244.html">hwloc_obj_t</a></div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="a00230.html#ga31d794567f4420bbdc8baa7bf8bf6138">  105</a></span>&#160;<a class="code" href="a00230.html#ga31d794567f4420bbdc8baa7bf8bf6138">hwloc_ibv_get_device_osdev_by_name</a>(<a class="code" href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology,</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;                                   <span class="keyword">const</span> <span class="keywordtype">char</span> *ibname)</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;{</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        <a class="code" href="a00244.html">hwloc_obj_t</a> osdev = NULL;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        <span class="keywordflow">while</span> ((osdev = <a class="code" href="a00210.html#ga8b4584c8949e2c5f1c97ba7fe92b8145">hwloc_get_next_osdev</a>(topology, osdev)) != NULL) {</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;                <span class="keywordflow">if</span> (<a class="code" href="a00190.html#gga64f5d539df299c97ae80ce53fc4b56c0a52157d03694fdae82dddd57ca8c973b6">HWLOC_OBJ_OSDEV_OPENFABRICS</a> == osdev-&gt;<a class="code" href="a00244.html#accd40e29f71f19e88db62ea3df02adc8">attr</a>-&gt;<a class="code" href="a00248.html#aaf7a5c38b5185703ff18c46ad2761dcf">osdev</a>.<a class="code" href="a00288.html#a31e019e27e54ac6138d04be639bb96f9">type</a></div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;                    &amp;&amp; osdev-&gt;<a class="code" href="a00244.html#abb709ec38f2970677e4e57d1d30be96d">name</a> &amp;&amp; !strcmp(ibname, osdev-&gt;<a class="code" href="a00244.html#abb709ec38f2970677e4e57d1d30be96d">name</a>))</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;                        <span class="keywordflow">return</span> osdev;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        }</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;}</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160; </div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;<span class="keyword">static</span> __hwloc_inline <a class="code" href="a00244.html">hwloc_obj_t</a></div>
<div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="a00230.html#ga7324cdfd5db6ed2669c051ef7e1b64e1">  132</a></span>&#160;<a class="code" href="a00230.html#ga7324cdfd5db6ed2669c051ef7e1b64e1">hwloc_ibv_get_device_osdev</a>(<a class="code" href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a> topology,</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;                           <span class="keyword">struct</span> ibv_device *ibdev)</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;{</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;        <span class="keywordflow">if</span> (!<a class="code" href="a00199.html#ga68ffdcfd9175cdf40709801092f18017">hwloc_topology_is_thissystem</a>(topology)) {</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;                errno = EINVAL;</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;                <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        }</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="a00230.html#ga31d794567f4420bbdc8baa7bf8bf6138">hwloc_ibv_get_device_osdev_by_name</a>(topology, ibv_get_device_name(ibdev));</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;}</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160; </div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;} <span class="comment">/* extern &quot;C&quot; */</span></div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160; </div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* HWLOC_OPENFABRICS_VERBS_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="aa00189_html_ga4bbf39b68b6f568fb92739e7c0ea7801"><div class="ttname"><a href="a00189.html#ga4bbf39b68b6f568fb92739e7c0ea7801">hwloc_cpuset_t</a></div><div class="ttdeci">hwloc_bitmap_t hwloc_cpuset_t</div><div class="ttdoc">A CPU set is a bitmap whose bits are set according to CPU physical OS indexes.</div><div class="ttdef"><b>Definition:</b> hwloc.h:140</div></div>
<div class="ttc" id="aa00190_html_gga64f5d539df299c97ae80ce53fc4b56c0a52157d03694fdae82dddd57ca8c973b6"><div class="ttname"><a href="a00190.html#gga64f5d539df299c97ae80ce53fc4b56c0a52157d03694fdae82dddd57ca8c973b6">HWLOC_OBJ_OSDEV_OPENFABRICS</a></div><div class="ttdeci">@ HWLOC_OBJ_OSDEV_OPENFABRICS</div><div class="ttdoc">Operating system openfabrics device. For instance the &quot;mlx4_0&quot; InfiniBand HCA, or &quot;hfi1_0&quot; Omni-Path ...</div><div class="ttdef"><b>Definition:</b> hwloc.h:347</div></div>
<div class="ttc" id="aa00192_html_ga9d1e76ee15a7dee158b786c30b6a6e38"><div class="ttname"><a href="a00192.html#ga9d1e76ee15a7dee158b786c30b6a6e38">hwloc_topology_t</a></div><div class="ttdeci">struct hwloc_topology * hwloc_topology_t</div><div class="ttdoc">Topology context.</div><div class="ttdef"><b>Definition:</b> hwloc.h:691</div></div>
<div class="ttc" id="aa00199_html_ga68ffdcfd9175cdf40709801092f18017"><div class="ttname"><a href="a00199.html#ga68ffdcfd9175cdf40709801092f18017">hwloc_topology_is_thissystem</a></div><div class="ttdeci">int hwloc_topology_is_thissystem(hwloc_topology_t restrict topology)</div><div class="ttdoc">Does the topology context come from this system?</div></div>
<div class="ttc" id="aa00208_html_gaee30e03391c1ed7dfd617fb5c7bbb033"><div class="ttname"><a href="a00208.html#gaee30e03391c1ed7dfd617fb5c7bbb033">hwloc_topology_get_complete_cpuset</a></div><div class="ttdeci">hwloc_const_cpuset_t hwloc_topology_get_complete_cpuset(hwloc_topology_t topology)</div><div class="ttdoc">Get complete CPU set.</div></div>
<div class="ttc" id="aa00210_html_ga8b4584c8949e2c5f1c97ba7fe92b8145"><div class="ttname"><a href="a00210.html#ga8b4584c8949e2c5f1c97ba7fe92b8145">hwloc_get_next_osdev</a></div><div class="ttdeci">static hwloc_obj_t hwloc_get_next_osdev(hwloc_topology_t topology, hwloc_obj_t prev)</div><div class="ttdoc">Get the next OS device in the system.</div><div class="ttdef"><b>Definition:</b> helper.h:1151</div></div>
<div class="ttc" id="aa00211_html_ga5b64be28f5a7176ed8ad0d6a90bdf108"><div class="ttname"><a href="a00211.html#ga5b64be28f5a7176ed8ad0d6a90bdf108">hwloc_bitmap_iszero</a></div><div class="ttdeci">int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap)</div><div class="ttdoc">Test whether bitmap bitmap is empty.</div></div>
<div class="ttc" id="aa00211_html_ga72a29824798b48784b8217471ec8f14c"><div class="ttname"><a href="a00211.html#ga72a29824798b48784b8217471ec8f14c">hwloc_bitmap_copy</a></div><div class="ttdeci">int hwloc_bitmap_copy(hwloc_bitmap_t dst, hwloc_const_bitmap_t src)</div><div class="ttdoc">Copy the contents of bitmap src into the already allocated bitmap dst.</div></div>
<div class="ttc" id="aa00220_html_gaf72d83e273803226ce772973e37b85de"><div class="ttname"><a href="a00220.html#gaf72d83e273803226ce772973e37b85de">hwloc_linux_read_path_as_cpumask</a></div><div class="ttdeci">int hwloc_linux_read_path_as_cpumask(const char *path, hwloc_bitmap_t set)</div><div class="ttdoc">Convert a linux kernel cpumask file path into a hwloc bitmap set.</div></div>
<div class="ttc" id="aa00230_html_ga31d794567f4420bbdc8baa7bf8bf6138"><div class="ttname"><a href="a00230.html#ga31d794567f4420bbdc8baa7bf8bf6138">hwloc_ibv_get_device_osdev_by_name</a></div><div class="ttdeci">static hwloc_obj_t hwloc_ibv_get_device_osdev_by_name(hwloc_topology_t topology, const char *ibname)</div><div class="ttdoc">Get the hwloc OS device object corresponding to the OpenFabrics device named ibname.</div><div class="ttdef"><b>Definition:</b> openfabrics-verbs.h:105</div></div>
<div class="ttc" id="aa00230_html_ga3ea0d838c1e7f1671b35687aae2da6ae"><div class="ttname"><a href="a00230.html#ga3ea0d838c1e7f1671b35687aae2da6ae">hwloc_ibv_get_device_cpuset</a></div><div class="ttdeci">static int hwloc_ibv_get_device_cpuset(hwloc_topology_t topology, struct ibv_device *ibdev, hwloc_cpuset_t set)</div><div class="ttdoc">Get the CPU set of processors that are physically close to device ibdev.</div><div class="ttdef"><b>Definition:</b> openfabrics-verbs.h:62</div></div>
<div class="ttc" id="aa00230_html_ga7324cdfd5db6ed2669c051ef7e1b64e1"><div class="ttname"><a href="a00230.html#ga7324cdfd5db6ed2669c051ef7e1b64e1">hwloc_ibv_get_device_osdev</a></div><div class="ttdeci">static hwloc_obj_t hwloc_ibv_get_device_osdev(hwloc_topology_t topology, struct ibv_device *ibdev)</div><div class="ttdoc">Get the hwloc OS device object corresponding to the OpenFabrics device ibdev.</div><div class="ttdef"><b>Definition:</b> openfabrics-verbs.h:132</div></div>
<div class="ttc" id="aa00244_html"><div class="ttname"><a href="a00244.html">hwloc_obj</a></div><div class="ttdoc">Structure of a topology object.</div><div class="ttdef"><b>Definition:</b> hwloc.h:395</div></div>
<div class="ttc" id="aa00244_html_abb709ec38f2970677e4e57d1d30be96d"><div class="ttname"><a href="a00244.html#abb709ec38f2970677e4e57d1d30be96d">hwloc_obj::name</a></div><div class="ttdeci">char * name</div><div class="ttdoc">Object-specific name if any. Mostly used for identifying OS devices and Misc objects where a name str...</div><div class="ttdef"><b>Definition:</b> hwloc.h:407</div></div>
<div class="ttc" id="aa00244_html_accd40e29f71f19e88db62ea3df02adc8"><div class="ttname"><a href="a00244.html#accd40e29f71f19e88db62ea3df02adc8">hwloc_obj::attr</a></div><div class="ttdeci">union hwloc_obj_attr_u * attr</div><div class="ttdoc">Object type-specific Attributes, may be NULL if no attribute value was found.</div><div class="ttdef"><b>Definition:</b> hwloc.h:414</div></div>
<div class="ttc" id="aa00248_html_aaf7a5c38b5185703ff18c46ad2761dcf"><div class="ttname"><a href="a00248.html#aaf7a5c38b5185703ff18c46ad2761dcf">hwloc_obj_attr_u::osdev</a></div><div class="ttdeci">struct hwloc_obj_attr_u::hwloc_osdev_attr_s osdev</div></div>
<div class="ttc" id="aa00288_html_a31e019e27e54ac6138d04be639bb96f9"><div class="ttname"><a href="a00288.html#a31e019e27e54ac6138d04be639bb96f9">hwloc_obj_attr_u::hwloc_osdev_attr_s::type</a></div><div class="ttdeci">hwloc_obj_osdev_type_t type</div><div class="ttdef"><b>Definition:</b> hwloc.h:665</div></div>
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