1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>rps_may_expire_flow</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Networking and Network Devices APIs"><link rel="up" href="netdev.html#idp1097739572" title="Driver Support"><link rel="prev" href="API-dev-loopback-xmit.html" title="dev_loopback_xmit"><link rel="next" href="API-netif-rx.html" title="netif_rx"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">rps_may_expire_flow</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-dev-loopback-xmit.html">Prev</a>&#160;</td><th width="60%" align="center">Driver Support</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-netif-rx.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-rps-may-expire-flow"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>rps_may_expire_flow &#8212; 
2     check whether an RFS hardware filter may be removed
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">bool <b class="fsfunc">rps_may_expire_flow </b>(</code></td><td>struct net_device * <var class="pdparam">dev</var>, </td></tr><tr><td>&#160;</td><td>u16 <var class="pdparam">rxq_index</var>, </td></tr><tr><td>&#160;</td><td>u32 <var class="pdparam">flow_id</var>, </td></tr><tr><td>&#160;</td><td>u16 <var class="pdparam">filter_id</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1098032924"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>dev</code></em></span></dt><dd><p>
4     Device on which the filter was set
5    </p></dd><dt><span class="term"><em class="parameter"><code>rxq_index</code></em></span></dt><dd><p>
6     RX queue index
7    </p></dd><dt><span class="term"><em class="parameter"><code>flow_id</code></em></span></dt><dd><p>
8     Flow ID passed to <code class="function">ndo_rx_flow_steer</code>
9    </p></dd><dt><span class="term"><em class="parameter"><code>filter_id</code></em></span></dt><dd><p>
10     Filter ID returned by <code class="function">ndo_rx_flow_steer</code>
11    </p></dd></dl></div></div><div class="refsect1"><a name="idp1098038300"></a><h2>Description</h2><p>
12   Drivers that implement <code class="function">ndo_rx_flow_steer</code> should periodically call
13   this function for each installed filter and remove the filters for
14   which it returns <code class="constant">true</code>.
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