1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>__skb_gso_segment</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-skb-mac-gso-segment.html" title="skb_mac_gso_segment"><link rel="next" href="API-dev-loopback-xmit.html" title="dev_loopback_xmit"></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">__skb_gso_segment</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-skb-mac-gso-segment.html">Prev</a>&#160;</td><th width="60%" align="center">Driver Support</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-dev-loopback-xmit.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API---skb-gso-segment"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>__skb_gso_segment &#8212; 
2     Perform segmentation on skb.
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">struct sk_buff * <b class="fsfunc">__skb_gso_segment </b>(</code></td><td>struct sk_buff * <var class="pdparam">skb</var>, </td></tr><tr><td>&#160;</td><td>netdev_features_t <var class="pdparam">features</var>, </td></tr><tr><td>&#160;</td><td>bool <var class="pdparam">tx_path</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1098013756"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>skb</code></em></span></dt><dd><p>
4     buffer to segment
5    </p></dd><dt><span class="term"><em class="parameter"><code>features</code></em></span></dt><dd><p>
6     features for the output path (see dev-&gt;features)
7    </p></dd><dt><span class="term"><em class="parameter"><code>tx_path</code></em></span></dt><dd><p>
8     whether it is called in TX path
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1098017468"></a><h2>Description</h2><p>
10   This function segments the given skb and returns a list of segments.
11   </p><p>
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13   It may return NULL if the skb requires no segmentation.  This is
14   only possible when GSO is used for verifying header integrity.
15   </p><p>
16
17   Segmentation preserves SKB_SGO_CB_OFFSET bytes of previous skb cb.
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