docs/API/xran__app__frag_8c_source.html

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  70 <a href="xran__app__frag_8c.html">Go to the documentation of this file.</a><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">*</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">*   Copyright (c) 2019 Intel.</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">*</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">*   Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">*   you may not use this file except in compliance with the License.</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">*   You may obtain a copy of the License at</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">*</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">*       http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">*</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">*   Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">*   distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">*   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">*   See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">*   limitations under the License.</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">*</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">*******************************************************************************/</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &lt;stddef.h&gt;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &lt;errno.h&gt;</span></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">#include &lt;rte_mbuf.h&gt;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;rte_memcpy.h&gt;</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#include &lt;rte_mempool.h&gt;</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &lt;rte_debug.h&gt;</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="xran__app__frag_8h.html">xran_app_frag.h</a>&quot;</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="xran__cp__api_8h.html">xran_cp_api.h</a>&quot;</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="xran__pkt__up_8h.html">xran_pkt_up.h</a>&quot;</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="xran__printf_8h.html">xran_printf.h</a>&quot;</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="xran__common_8h.html">xran_common.h</a>&quot;</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="comment">/* Fragment alignment */</span></div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="xran__app__frag_8c.html#a2edabb9c91d40ec79fbebbb2fa0457d0">   43</a></span>&#160;<span class="preprocessor">#define    XRAN_PAYLOAD_RB_ALIGN  (N_SC_PER_PRB*(IQ_BITS/8)*2) </span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">static inline void __fill_xranhdr_frag(struct xran_up_pkt_hdr *dst,</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a> *src, uint16_t rblen_bytes,</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;        uint16_t rboff_bytes, <span class="keyword">struct </span><a class="code" href="structxran__section__info.html">xran_section_info</a> *sectinfo, uint32_t mf, uint8_t *seqid)</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;{</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    <span class="keyword">struct </span><a class="code" href="structdata__section__hdr.html">data_section_hdr</a> loc_data_sec_hdr;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keyword">struct </span><a class="code" href="structxran__ecpri__hdr.html">xran_ecpri_hdr</a> loc_ecpri_hdr;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    rte_memcpy(dst, src, <span class="keyword">sizeof</span>(*dst));</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    dst-&gt;ecpri_hdr.ecpri_seq_id.seq_id = (*seqid)++;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;sec [%d %d] sec %d mf %d g_sec %d\n&quot;</span>,sectinfo-&gt;<a class="code" href="structxran__section__info.html#a6b13285aabf8f2f4598143b2670204c1">startPrbc</a>, sectinfo-&gt;<a class="code" href="structxran__section__info.html#a2b72ddddeff4e4a8a5c191695ec41079">numPrbc</a>, dst-&gt;ecpri_hdr.ecpri_seq_id.seq_id, mf, *seqid);</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    loc_data_sec_hdr.<a class="code" href="structdata__section__hdr.html#a9f1bf385f4549249e191e6563acbdecb">fields</a>.<a class="code" href="structdata__section__hdr.html#a9f9f2f87d8b5cc7e4af6ef3e2c4c8189">all_bits</a> = rte_be_to_cpu_32(dst-&gt;data_sec_hdr.fields.all_bits);</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <span class="comment">/* update RBs */</span></div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    loc_data_sec_hdr.<a class="code" href="structdata__section__hdr.html#a9f1bf385f4549249e191e6563acbdecb">fields</a>.<a class="code" href="structdata__section__hdr.html#a486aca552c11b7046ca3066ebf4241dc">start_prbu</a> = sectinfo-&gt;<a class="code" href="structxran__section__info.html#a6b13285aabf8f2f4598143b2670204c1">startPrbc</a> + rboff_bytes/(<a class="code" href="common_8h.html#ab97ae0d1cc679c3c40b779b34ab7b4cf">N_SC_PER_PRB</a>*(<a class="code" href="xran__pkt__up_8h.html#a1f562f709cbcc25bce1e2af28e796ff2">IQ_BITS</a>/8*2));</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    loc_data_sec_hdr.<a class="code" href="structdata__section__hdr.html#a9f1bf385f4549249e191e6563acbdecb">fields</a>.<a class="code" href="structdata__section__hdr.html#acb00c5e7ebe809fda7288c699eed867c">num_prbu</a>   = rblen_bytes/(<a class="code" href="common_8h.html#ab97ae0d1cc679c3c40b779b34ab7b4cf">N_SC_PER_PRB</a>*(<a class="code" href="xran__pkt__up_8h.html#a1f562f709cbcc25bce1e2af28e796ff2">IQ_BITS</a>/8*2));</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;sec [%d %d] pkt [%d %d] rboff_bytes %d rblen_bytes %d\n&quot;</span>,sectinfo-&gt;<a class="code" href="structxran__section__info.html#a6b13285aabf8f2f4598143b2670204c1">startPrbc</a>, sectinfo-&gt;<a class="code" href="structxran__section__info.html#a2b72ddddeff4e4a8a5c191695ec41079">numPrbc</a>, loc_data_sec_hdr.<a class="code" href="structdata__section__hdr.html#a9f1bf385f4549249e191e6563acbdecb">fields</a>.<a class="code" href="structdata__section__hdr.html#a486aca552c11b7046ca3066ebf4241dc">start_prbu</a>, loc_data_sec_hdr.<a class="code" href="structdata__section__hdr.html#a9f1bf385f4549249e191e6563acbdecb">fields</a>.<a class="code" href="structdata__section__hdr.html#acb00c5e7ebe809fda7288c699eed867c">num_prbu</a>,</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;        rboff_bytes, rblen_bytes);</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    dst-&gt;data_sec_hdr.fields.all_bits = rte_cpu_to_be_32(loc_data_sec_hdr.<a class="code" href="structdata__section__hdr.html#a9f1bf385f4549249e191e6563acbdecb">fields</a>.<a class="code" href="structdata__section__hdr.html#a9f9f2f87d8b5cc7e4af6ef3e2c4c8189">all_bits</a>);</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="comment">/* update length */</span></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    dst-&gt;ecpri_hdr.cmnhdr.ecpri_payl_size = rte_cpu_to_be_16(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structradio__app__common__hdr.html">radio_app_common_hdr</a>) +</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;                <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structdata__section__hdr.html">data_section_hdr</a>) + rblen_bytes + <a class="code" href="xran__transport_8h.html#a0f378609208ec66467c58f0702ced85c">xran_get_ecpri_hdr_size</a>());</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;}</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</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;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> __free_fragments(<span class="keyword">struct</span> rte_mbuf *mb[], uint32_t num)</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;{</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    uint32_t i;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keywordflow">for</span> (i = 0; i != num; i++)</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        rte_pktmbuf_free(mb[i]);</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;}</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;int32_t</div><div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="xran__app__frag_8h.html#a601e1216fbace8ea32a97e37df69b129">  104</a></span>&#160;<a class="code" href="xran__app__frag_8c.html#a601e1216fbace8ea32a97e37df69b129">xran_app_fragment_packet</a>(<span class="keyword">struct</span> rte_mbuf *pkt_in, <span class="comment">/* eth hdr is prepended */</span></div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    <span class="keyword">struct</span> rte_mbuf **pkts_out,</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    uint16_t nb_pkts_out,</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    uint16_t mtu_size,</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    <span class="keyword">struct</span> rte_mempool *pool_direct,</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    <span class="keyword">struct</span> rte_mempool *pool_indirect,</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    <span class="keyword">struct</span> <a class="code" href="structxran__section__info.html">xran_section_info</a> *sectinfo,</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    uint8_t *seqid)</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;{</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    <span class="keyword">struct </span>rte_mbuf *in_seg = NULL;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    uint32_t out_pkt_pos =  0, in_seg_data_pos = 0;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    uint32_t more_in_segs;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    uint16_t fragment_offset, frag_size;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    uint16_t frag_bytes_remaining;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    <span class="keyword">struct </span><a class="code" href="structeth__xran__up__pkt__hdr.html">eth_xran_up_pkt_hdr</a> *in_hdr;</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <span class="keyword">struct </span><a class="code" href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a> *in_hdr_xran;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="comment">/*</span></div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="comment">     * Ensure the XRAN payload length of all fragments is aligned to a</span></div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;<span class="comment">     * multiple of 48 bytes (1 RB with IQ of 16 bits each)</span></div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="comment">     */</span></div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;    frag_size = ((mtu_size - <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structeth__xran__up__pkt__hdr.html">eth_xran_up_pkt_hdr</a>) - RTE_PKTMBUF_HEADROOM)/XRAN_PAYLOAD_RB_ALIGN)*<a class="code" href="xran__app__frag_8c.html#a2edabb9c91d40ec79fbebbb2fa0457d0">XRAN_PAYLOAD_RB_ALIGN</a>;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;frag_size %d\n&quot;</span>,frag_size);</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    in_hdr = rte_pktmbuf_mtod(pkt_in, <span class="keyword">struct</span> <a class="code" href="structeth__xran__up__pkt__hdr.html">eth_xran_up_pkt_hdr</a> *);</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    in_hdr_xran = &amp;in_hdr-&gt;<a class="code" href="structeth__xran__up__pkt__hdr.html#a080244f9e1996ad47a6e709f78897803">xran_hdr</a>;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="comment">/* Check that pkts_out is big enough to hold all fragments */</span></div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keywordflow">if</span> (unlikely(frag_size * nb_pkts_out &lt;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;        (uint16_t)(pkt_in-&gt;pkt_len - sizeof (<span class="keyword">struct</span> <a class="code" href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a>)))){</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;        <a class="code" href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a>(<span class="stringliteral">&quot;-EINVAL\n&quot;</span>);</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        <span class="keywordflow">return</span> -EINVAL;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    }</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;    in_seg = pkt_in;</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    in_seg_data_pos = <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structeth__xran__up__pkt__hdr.html">eth_xran_up_pkt_hdr</a>);</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    out_pkt_pos = 0;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    fragment_offset = 0;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    more_in_segs = 1;</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="keywordflow">while</span> (likely(more_in_segs)) {</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        <span class="keyword">struct </span>rte_mbuf *out_pkt = NULL, *out_seg_prev = NULL;</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;        uint32_t more_out_segs;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;        <span class="keyword">struct </span><a class="code" href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a> *out_hdr;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;        <span class="comment">/* Allocate direct buffer */</span></div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        out_pkt = rte_pktmbuf_alloc(pool_direct);</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        <span class="keywordflow">if</span> (unlikely(out_pkt == NULL)) {</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;            <a class="code" href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a>(<span class="stringliteral">&quot;pool_direct -ENOMEM\n&quot;</span>);</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;            __free_fragments(pkts_out, out_pkt_pos);</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;            <span class="keywordflow">return</span> -ENOMEM;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;        }</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;[%d] out_pkt %p\n&quot;</span>,more_in_segs, out_pkt);</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;        <span class="comment">/* Reserve space for the XRAN header that will be built later */</span></div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;        <span class="comment">//out_pkt-&gt;data_len = sizeof(struct xran_up_pkt_hdr);</span></div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;         <span class="comment">//out_pkt-&gt;pkt_len = sizeof(struct xran_up_pkt_hdr);</span></div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;        <span class="keywordflow">if</span>(rte_pktmbuf_append(out_pkt, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a>)) ==NULL){</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;            rte_panic(<span class="stringliteral">&quot;sizeof(struct xran_up_pkt_hdr)&quot;</span>);</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;        }</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;        frag_bytes_remaining = frag_size;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;        out_seg_prev = out_pkt;</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;        more_out_segs = 1;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;        <span class="keywordflow">while</span> (likely(more_out_segs &amp;&amp; more_in_segs)) {</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;            uint32_t len;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;<span class="preprocessor">#ifdef XRAN_ATTACH_MBUF</span></div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;            <span class="keyword">struct </span>rte_mbuf *out_seg = NULL;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;            <span class="comment">/* Allocate indirect buffer */</span></div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;            <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;Allocate indirect buffer \n&quot;</span>);</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;            out_seg = rte_pktmbuf_alloc(pool_indirect);</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;            <span class="keywordflow">if</span> (unlikely(out_seg == NULL)) {</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;                <a class="code" href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a>(<span class="stringliteral">&quot;pool_indirect -ENOMEM\n&quot;</span>);</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;                rte_pktmbuf_free(out_pkt);</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;                __free_fragments(pkts_out, out_pkt_pos);</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;                <span class="keywordflow">return</span> -ENOMEM;</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;            }</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;            <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;[%d %d] out_seg %p\n&quot;</span>,more_out_segs, more_in_segs, out_seg);</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;            out_seg_prev-&gt;next = out_seg;</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;            out_seg_prev = out_seg;</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;            <span class="comment">/* Prepare indirect buffer */</span></div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;            rte_pktmbuf_attach(out_seg, in_seg);</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;            len = frag_bytes_remaining;</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;            <span class="keywordflow">if</span> (len &gt; (in_seg-&gt;data_len - in_seg_data_pos)) {</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;                len = in_seg-&gt;data_len - in_seg_data_pos;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;            }</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;<span class="preprocessor">#ifdef XRAN_ATTACH_MBUF</span></div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;            out_seg-&gt;data_off = in_seg-&gt;data_off + in_seg_data_pos;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;            out_seg-&gt;data_len = (uint16_t)len;</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;            out_pkt-&gt;pkt_len = (uint16_t)(len +</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;                out_pkt-&gt;pkt_len);</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;            out_pkt-&gt;nb_segs += 1;</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;{</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            <span class="keywordtype">char</span>* pChar   = rte_pktmbuf_mtod(in_seg, <span class="keywordtype">char</span>*);</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;            <span class="keywordtype">void</span> *iq_src  = (pChar + in_seg_data_pos);</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;            <span class="keywordtype">void</span> *iq_dst  = rte_pktmbuf_append(out_pkt, len);</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;            <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;rte_pktmbuf_attach\n&quot;</span>);</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;            <span class="keywordflow">if</span>(iq_src &amp;&amp; iq_dst)</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;                rte_memcpy(iq_dst, iq_src, len);</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;            <span class="keywordflow">else</span></div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;                <a class="code" href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a>(<span class="stringliteral">&quot;iq_src %p iq_dst %p\n len %d room %d\n&quot;</span>, iq_src, iq_dst, len, rte_pktmbuf_tailroom(out_pkt));</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;}</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;            in_seg_data_pos += len;</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;            frag_bytes_remaining -= len;</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;            <span class="comment">/* Current output packet (i.e. fragment) done ? */</span></div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;            <span class="keywordflow">if</span> (unlikely(frag_bytes_remaining == 0))</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;                more_out_segs = 0;</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;            <span class="comment">/* Current input segment done ? */</span></div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;            <span class="keywordflow">if</span> (unlikely(in_seg_data_pos == in_seg-&gt;data_len)) {</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;                in_seg = in_seg-&gt;next;</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;                in_seg_data_pos = 0;</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;                <span class="keywordflow">if</span> (unlikely(in_seg == NULL))</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;                    more_in_segs = 0;</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;            }</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;        }</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;        <span class="comment">/* Build the XRAN header */</span></div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;        <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;Build the XRAN header\n&quot;</span>);</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;        out_hdr = rte_pktmbuf_mtod(out_pkt, <span class="keyword">struct</span> <a class="code" href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a> *);</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;        __fill_xranhdr_frag(out_hdr, in_hdr_xran,</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;            (uint16_t)out_pkt-&gt;pkt_len - <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a>),</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;            fragment_offset, sectinfo, more_in_segs, seqid);</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;        fragment_offset = (uint16_t)(fragment_offset +</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;            out_pkt-&gt;pkt_len - <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a>));</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;        <span class="comment">//out_pkt-&gt;l3_len = sizeof(struct xran_up_pkt_hdr);</span></div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        <span class="comment">/* Write the fragment to the output list */</span></div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;        pkts_out[out_pkt_pos] = out_pkt;</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;        <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">&quot;out_pkt_pos %d data_len %d pkt_len %d\n&quot;</span>, out_pkt_pos, out_pkt-&gt;data_len, out_pkt-&gt;pkt_len);</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;        out_pkt_pos ++;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;        <span class="comment">//rte_pktmbuf_dump(stdout, out_pkt, 96);</span></div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    }</div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;    <span class="keywordflow">return</span> out_pkt_pos;</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;}</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;</div><div class="ttc" id="common_8h_html_ab97ae0d1cc679c3c40b779b34ab7b4cf"><div class="ttname"><a href="common_8h.html#ab97ae0d1cc679c3c40b779b34ab7b4cf">N_SC_PER_PRB</a></div><div class="ttdeci">#define N_SC_PER_PRB</div><div class="ttdef"><b>Definition:</b> <a href="common_8h_source.html#l00049">common.h:49</a></div></div>
  71 <div class="ttc" id="xran__printf_8h_html_a417ba2c3b49b216e358bc340346bf1cf"><div class="ttname"><a href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a></div><div class="ttdeci">#define print_dbg(fmt, args...)</div><div class="ttdef"><b>Definition:</b> <a href="xran__printf_8h_source.html#l00054">xran_printf.h:54</a></div></div>
  72 <div class="ttc" id="structdata__section__hdr_html"><div class="ttname"><a href="structdata__section__hdr.html">data_section_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt__up_8h_source.html#l00067">xran_pkt_up.h:67</a></div></div>
  73 <div class="ttc" id="structeth__xran__up__pkt__hdr_html_a080244f9e1996ad47a6e709f78897803"><div class="ttname"><a href="structeth__xran__up__pkt__hdr.html#a080244f9e1996ad47a6e709f78897803">eth_xran_up_pkt_hdr::xran_hdr</a></div><div class="ttdeci">struct xran_up_pkt_hdr xran_hdr</div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt__up_8h_source.html#l00168">xran_pkt_up.h:168</a></div></div>
  74 <div class="ttc" id="structxran__section__info_html"><div class="ttname"><a href="structxran__section__info.html">xran_section_info</a></div><div class="ttdef"><b>Definition:</b> <a href="xran__cp__api_8h_source.html#l00184">xran_cp_api.h:184</a></div></div>
  75 <div class="ttc" id="structdata__section__hdr_html_acb00c5e7ebe809fda7288c699eed867c"><div class="ttname"><a href="structdata__section__hdr.html#acb00c5e7ebe809fda7288c699eed867c">data_section_hdr::num_prbu</a></div><div class="ttdeci">uint32_t num_prbu</div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt__up_8h_source.html#l00071">xran_pkt_up.h:71</a></div></div>
  76 <div class="ttc" id="structxran__ecpri__hdr_html"><div class="ttname"><a href="structxran__ecpri__hdr.html">xran_ecpri_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt_8h_source.html#l00130">xran_pkt.h:130</a></div></div>
  77 <div class="ttc" id="xran__printf_8h_html_a16c2c0a30b31515830a4a8eff6cf10b5"><div class="ttname"><a href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a></div><div class="ttdeci">#define print_err(fmt, args...)</div><div class="ttdef"><b>Definition:</b> <a href="xran__printf_8h_source.html#l00062">xran_printf.h:62</a></div></div>
  78 <div class="ttc" id="structxran__section__info_html_a6b13285aabf8f2f4598143b2670204c1"><div class="ttname"><a href="structxran__section__info.html#a6b13285aabf8f2f4598143b2670204c1">xran_section_info::startPrbc</a></div><div class="ttdeci">uint16_t startPrbc</div><div class="ttdef"><b>Definition:</b> <a href="xran__cp__api_8h_source.html#l00193">xran_cp_api.h:193</a></div></div>
  79 <div class="ttc" id="xran__transport_8h_html_a0f378609208ec66467c58f0702ced85c"><div class="ttname"><a href="xran__transport_8h.html#a0f378609208ec66467c58f0702ced85c">xran_get_ecpri_hdr_size</a></div><div class="ttdeci">int xran_get_ecpri_hdr_size(void)</div><div class="ttdoc">return eCPRI header size without eCPRI common header </div><div class="ttdef"><b>Definition:</b> <a href="xran__transport_8c_source.html#l00049">xran_transport.c:49</a></div></div>
  80 <div class="ttc" id="structdata__section__hdr_html_a9f9f2f87d8b5cc7e4af6ef3e2c4c8189"><div class="ttname"><a href="structdata__section__hdr.html#a9f9f2f87d8b5cc7e4af6ef3e2c4c8189">data_section_hdr::all_bits</a></div><div class="ttdeci">uint32_t all_bits</div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt__up_8h_source.html#l00069">xran_pkt_up.h:69</a></div></div>
  81 <div class="ttc" id="xran__app__frag_8c_html_a2edabb9c91d40ec79fbebbb2fa0457d0"><div class="ttname"><a href="xran__app__frag_8c.html#a2edabb9c91d40ec79fbebbb2fa0457d0">XRAN_PAYLOAD_RB_ALIGN</a></div><div class="ttdeci">#define XRAN_PAYLOAD_RB_ALIGN</div><div class="ttdef"><b>Definition:</b> <a href="xran__app__frag_8c_source.html#l00043">xran_app_frag.c:43</a></div></div>
  82 <div class="ttc" id="structxran__section__info_html_a2b72ddddeff4e4a8a5c191695ec41079"><div class="ttname"><a href="structxran__section__info.html#a2b72ddddeff4e4a8a5c191695ec41079">xran_section_info::numPrbc</a></div><div class="ttdeci">uint16_t numPrbc</div><div class="ttdef"><b>Definition:</b> <a href="xran__cp__api_8h_source.html#l00194">xran_cp_api.h:194</a></div></div>
  83 <div class="ttc" id="xran__app__frag_8c_html_a601e1216fbace8ea32a97e37df69b129"><div class="ttname"><a href="xran__app__frag_8c.html#a601e1216fbace8ea32a97e37df69b129">xran_app_fragment_packet</a></div><div class="ttdeci">int32_t xran_app_fragment_packet(struct rte_mbuf *pkt_in, struct rte_mbuf **pkts_out, uint16_t nb_pkts_out, uint16_t mtu_size, struct rte_mempool *pool_direct, struct rte_mempool *pool_indirect, struct xran_section_info *sectinfo, uint8_t *seqid)</div><div class="ttdef"><b>Definition:</b> <a href="xran__app__frag_8c_source.html#l00104">xran_app_frag.c:104</a></div></div>
  84 <div class="ttc" id="xran__pkt__up_8h_html_a1f562f709cbcc25bce1e2af28e796ff2"><div class="ttname"><a href="xran__pkt__up_8h.html#a1f562f709cbcc25bce1e2af28e796ff2">IQ_BITS</a></div><div class="ttdeci">#define IQ_BITS</div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt__up_8h_source.html#l00050">xran_pkt_up.h:50</a></div></div>
  85 <div class="ttc" id="xran__app__frag_8h_html"><div class="ttname"><a href="xran__app__frag_8h.html">xran_app_frag.h</a></div><div class="ttdoc">Header file for functions to perform application level fragmentation. </div></div>
  86 <div class="ttc" id="xran__printf_8h_html"><div class="ttname"><a href="xran__printf_8h.html">xran_printf.h</a></div><div class="ttdoc">Modules provide debug prints and utility functions. </div></div>
  87 <div class="ttc" id="xran__common_8h_html"><div class="ttname"><a href="xran__common_8h.html">xran_common.h</a></div><div class="ttdoc">XRAN layer common functionality for both lls-CU and RU as well as C-plane and U-plane. </div></div>
  88 <div class="ttc" id="structdata__section__hdr_html_a486aca552c11b7046ca3066ebf4241dc"><div class="ttname"><a href="structdata__section__hdr.html#a486aca552c11b7046ca3066ebf4241dc">data_section_hdr::start_prbu</a></div><div class="ttdeci">uint32_t start_prbu</div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt__up_8h_source.html#l00072">xran_pkt_up.h:72</a></div></div>
  89 <div class="ttc" id="xran__pkt__up_8h_html"><div class="ttname"><a href="xran__pkt__up_8h.html">xran_pkt_up.h</a></div><div class="ttdoc">Definitions and support functions to process XRAN packet. </div></div>
  90 <div class="ttc" id="structxran__up__pkt__hdr_html"><div class="ttname"><a href="structxran__up__pkt__hdr.html">xran_up_pkt_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt__up_8h_source.html#l00149">xran_pkt_up.h:149</a></div></div>
  91 <div class="ttc" id="structdata__section__hdr_html_a9f1bf385f4549249e191e6563acbdecb"><div class="ttname"><a href="structdata__section__hdr.html#a9f1bf385f4549249e191e6563acbdecb">data_section_hdr::fields</a></div><div class="ttdeci">union data_section_hdr::@18 fields</div></div>
  92 <div class="ttc" id="structradio__app__common__hdr_html"><div class="ttname"><a href="structradio__app__common__hdr.html">radio_app_common_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt_8h_source.html#l00162">xran_pkt.h:162</a></div></div>
  93 <div class="ttc" id="structeth__xran__up__pkt__hdr_html"><div class="ttname"><a href="structeth__xran__up__pkt__hdr.html">eth_xran_up_pkt_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="xran__pkt__up_8h_source.html#l00165">xran_pkt_up.h:165</a></div></div>
  94 <div class="ttc" id="xran__cp__api_8h_html"><div class="ttname"><a href="xran__cp__api_8h.html">xran_cp_api.h</a></div><div class="ttdoc">This file provides the definitions for Control Plane Messages APIs. </div></div>
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