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<div class="title">Stochastic Fairness Queueing (SFQ)</div> </div>
<div class="ingroups"><a class="el" href="group__qdisc.html">Queueing Disciplines</a></div></div><!--header-->
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<tr class="heading"><td colspan="2"><h2><a name="member-group"></a>
Attribute Access</h2></td></tr>
<tr class="memitem:ga8a2859b0cfb2ce4872b51ea4fb8a7772"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__qdisc__sfq.html#ga8a2859b0cfb2ce4872b51ea4fb8a7772">rtnl_sfq_set_quantum</a> (struct rtnl_qdisc *qdisc, int quantum)</td></tr>
<tr class="memdesc:ga8a2859b0cfb2ce4872b51ea4fb8a7772"><td class="mdescLeft"> </td><td class="mdescRight">Set quantum of SFQ qdisc. <a href="#ga8a2859b0cfb2ce4872b51ea4fb8a7772"></a><br/></td></tr>
<tr class="memitem:ga27047a6e57071b3abb35e654e25091d1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__qdisc__sfq.html#ga27047a6e57071b3abb35e654e25091d1">rtnl_sfq_get_quantum</a> (struct rtnl_qdisc *qdisc)</td></tr>
<tr class="memdesc:ga27047a6e57071b3abb35e654e25091d1"><td class="mdescLeft"> </td><td class="mdescRight">Get quantum of SFQ qdisc. <a href="#ga27047a6e57071b3abb35e654e25091d1"></a><br/></td></tr>
<tr class="memitem:gaeda9a90b6dba5367ab81826106e83396"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__qdisc__sfq.html#gaeda9a90b6dba5367ab81826106e83396">rtnl_sfq_set_limit</a> (struct rtnl_qdisc *qdisc, int limit)</td></tr>
<tr class="memdesc:gaeda9a90b6dba5367ab81826106e83396"><td class="mdescLeft"> </td><td class="mdescRight">Set limit of SFQ qdisc. <a href="#gaeda9a90b6dba5367ab81826106e83396"></a><br/></td></tr>
<tr class="memitem:gacacbff614291ea8fc35ffddb2f68351f"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__qdisc__sfq.html#gacacbff614291ea8fc35ffddb2f68351f">rtnl_sfq_get_limit</a> (struct rtnl_qdisc *qdisc)</td></tr>
<tr class="memdesc:gacacbff614291ea8fc35ffddb2f68351f"><td class="mdescLeft"> </td><td class="mdescRight">Get limit of SFQ qdisc. <a href="#gacacbff614291ea8fc35ffddb2f68351f"></a><br/></td></tr>
<tr class="memitem:ga34c74ce26892f8aaf4cfea5ee11c00b5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__qdisc__sfq.html#ga34c74ce26892f8aaf4cfea5ee11c00b5">rtnl_sfq_set_perturb</a> (struct rtnl_qdisc *qdisc, int perturb)</td></tr>
<tr class="memdesc:ga34c74ce26892f8aaf4cfea5ee11c00b5"><td class="mdescLeft"> </td><td class="mdescRight">Set perturbation interval of SFQ qdisc. <a href="#ga34c74ce26892f8aaf4cfea5ee11c00b5"></a><br/></td></tr>
<tr class="memitem:ga876d1c7691139e98e73943275515dba0"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__qdisc__sfq.html#ga876d1c7691139e98e73943275515dba0">rtnl_sfq_get_perturb</a> (struct rtnl_qdisc *qdisc)</td></tr>
<tr class="memdesc:ga876d1c7691139e98e73943275515dba0"><td class="mdescLeft"> </td><td class="mdescRight">Get perturbation interval of SFQ qdisc. <a href="#ga876d1c7691139e98e73943275515dba0"></a><br/></td></tr>
<tr class="memitem:ga673ca724807fae25093b168181226449"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__qdisc__sfq.html#ga673ca724807fae25093b168181226449">rtnl_sfq_get_divisor</a> (struct rtnl_qdisc *qdisc)</td></tr>
<tr class="memdesc:ga673ca724807fae25093b168181226449"><td class="mdescLeft"> </td><td class="mdescRight">Get divisor of SFQ qdisc. <a href="#ga673ca724807fae25093b168181226449"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<dl class="section user"><dt>Parameter Description</dt><dd><ul>
<li><b>Quantum:</b> Number of bytes to send out per slot and round.</li>
<li><b>Perturbation:</b> Timer period between changing the hash function.</li>
<li><b>Limit:</b> Upper limit of queue in number of packets before SFQ starts dropping packets.</li>
<li><b>Divisor:</b> Hash table divisor, i.e. size of hash table. </li>
</ul>
</dd></dl>
<hr/><h2>Function Documentation</h2>
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<td class="memname">void rtnl_sfq_set_quantum </td>
<td>(</td>
<td class="paramtype">struct rtnl_qdisc * </td>
<td class="paramname"><em>qdisc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>quantum</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Set quantum of SFQ qdisc. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">qdisc</td><td>SFQ qdisc to be modified. </td></tr>
<tr><td class="paramname">quantum</td><td>New quantum in bytes. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>0 on success or a negative error code. </dd></dl>
<p>Definition at line <a class="el" href="sfq_8c_source.html#l00114">114</a> of file <a class="el" href="sfq_8c_source.html">sfq.c</a>.</p>
<p>References <a class="el" href="lib_2route_2tc_8c_source.html#l01001">rtnl_tc_data()</a>, and <a class="el" href="route_2tc_8h_source.html#l00055">TC_CAST</a>.</p>
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<td class="memname">int rtnl_sfq_get_quantum </td>
<td>(</td>
<td class="paramtype">struct rtnl_qdisc * </td>
<td class="paramname"><em>qdisc</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Get quantum of SFQ qdisc. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">qdisc</td><td>SFQ qdisc. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>Quantum in bytes or a negative error code. </dd></dl>
<p>Definition at line <a class="el" href="sfq_8c_source.html#l00130">130</a> of file <a class="el" href="sfq_8c_source.html">sfq.c</a>.</p>
<p>References <a class="el" href="lib_2route_2tc_8c_source.html#l01001">rtnl_tc_data()</a>, and <a class="el" href="route_2tc_8h_source.html#l00055">TC_CAST</a>.</p>
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<td class="memname">void rtnl_sfq_set_limit </td>
<td>(</td>
<td class="paramtype">struct rtnl_qdisc * </td>
<td class="paramname"><em>qdisc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>limit</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Set limit of SFQ qdisc. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">qdisc</td><td>SFQ qdisc to be modified. </td></tr>
<tr><td class="paramname">limit</td><td>New limit in number of packets. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>0 on success or a negative error code. </dd></dl>
<p>Definition at line <a class="el" href="sfq_8c_source.html#l00149">149</a> of file <a class="el" href="sfq_8c_source.html">sfq.c</a>.</p>
<p>References <a class="el" href="lib_2route_2tc_8c_source.html#l01001">rtnl_tc_data()</a>, and <a class="el" href="route_2tc_8h_source.html#l00055">TC_CAST</a>.</p>
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<td class="memname">int rtnl_sfq_get_limit </td>
<td>(</td>
<td class="paramtype">struct rtnl_qdisc * </td>
<td class="paramname"><em>qdisc</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Get limit of SFQ qdisc. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">qdisc</td><td>SFQ qdisc. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>Limit or a negative error code. </dd></dl>
<p>Definition at line <a class="el" href="sfq_8c_source.html#l00165">165</a> of file <a class="el" href="sfq_8c_source.html">sfq.c</a>.</p>
<p>References <a class="el" href="lib_2route_2tc_8c_source.html#l01001">rtnl_tc_data()</a>, and <a class="el" href="route_2tc_8h_source.html#l00055">TC_CAST</a>.</p>
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<td class="memname">void rtnl_sfq_set_perturb </td>
<td>(</td>
<td class="paramtype">struct rtnl_qdisc * </td>
<td class="paramname"><em>qdisc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>perturb</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Set perturbation interval of SFQ qdisc. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">qdisc</td><td>SFQ qdisc to be modified. </td></tr>
<tr><td class="paramname">perturb</td><td>New perturbation interval in seconds. </td></tr>
</table>
</dd>
</dl>
<dl class="section note"><dt>Note:</dt><dd>A value of 0 disables perturbation altogether. </dd></dl>
<dl class="section return"><dt>Returns:</dt><dd>0 on success or a negative error code. </dd></dl>
<p>Definition at line <a class="el" href="sfq_8c_source.html#l00185">185</a> of file <a class="el" href="sfq_8c_source.html">sfq.c</a>.</p>
<p>References <a class="el" href="lib_2route_2tc_8c_source.html#l01001">rtnl_tc_data()</a>, and <a class="el" href="route_2tc_8h_source.html#l00055">TC_CAST</a>.</p>
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<td class="memname">int rtnl_sfq_get_perturb </td>
<td>(</td>
<td class="paramtype">struct rtnl_qdisc * </td>
<td class="paramname"><em>qdisc</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Get perturbation interval of SFQ qdisc. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">qdisc</td><td>SFQ qdisc. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>Perturbation interval in seconds or a negative error code. </dd></dl>
<p>Definition at line <a class="el" href="sfq_8c_source.html#l00201">201</a> of file <a class="el" href="sfq_8c_source.html">sfq.c</a>.</p>
<p>References <a class="el" href="lib_2route_2tc_8c_source.html#l01001">rtnl_tc_data()</a>, and <a class="el" href="route_2tc_8h_source.html#l00055">TC_CAST</a>.</p>
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<td class="memname">int rtnl_sfq_get_divisor </td>
<td>(</td>
<td class="paramtype">struct rtnl_qdisc * </td>
<td class="paramname"><em>qdisc</em></td><td>)</td>
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<p>Get divisor of SFQ qdisc. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">qdisc</td><td>SFQ qdisc. </td></tr>
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<dl class="section return"><dt>Returns:</dt><dd>Divisor in number of entries or a negative error code. </dd></dl>
<p>Definition at line <a class="el" href="sfq_8c_source.html#l00219">219</a> of file <a class="el" href="sfq_8c_source.html">sfq.c</a>.</p>
<p>References <a class="el" href="lib_2route_2tc_8c_source.html#l01001">rtnl_tc_data()</a>, and <a class="el" href="route_2tc_8h_source.html#l00055">TC_CAST</a>.</p>
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