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-<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> <span class="comment">/******************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">*</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">* Copyright (c) 2019 Intel.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">*</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">* Licensed under the Apache License, Version 2.0 (the "License");</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <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> <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> <span class="comment">*</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <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> <span class="comment">*</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <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> <span class="comment">* distributed under the License is distributed on an "AS IS" BASIS,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <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> <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> <span class="comment">* limitations under the License.</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">*</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*******************************************************************************/</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <stdio.h></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <stddef.h></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <errno.h></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <rte_mbuf.h></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <rte_memcpy.h></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <rte_mempool.h></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <rte_debug.h></span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "<a class="code" href="xran__app__frag_8h.html">xran_app_frag.h</a>"</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "<a class="code" href="xran__cp__api_8h.html">xran_cp_api.h</a>"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "<a class="code" href="xran__pkt__up_8h.html">xran_pkt_up.h</a>"</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include "<a class="code" href="xran__printf_8h.html">xran_printf.h</a>"</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include "<a class="code" href="xran__common_8h.html">xran_common.h</a>"</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <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> <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> <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>  <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>  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> {</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <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>  <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> </div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  rte_memcpy(dst, src, <span class="keyword">sizeof</span>(*dst));</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  dst->ecpri_hdr.ecpri_seq_id.seq_id = (*seqid)++;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"sec [%d %d] sec %d mf %d g_sec %d\n"</span>,sectinfo-><a class="code" href="structxran__section__info.html#a6b13285aabf8f2f4598143b2670204c1">startPrbc</a>, sectinfo-><a class="code" href="structxran__section__info.html#a2b72ddddeff4e4a8a5c191695ec41079">numPrbc</a>, dst->ecpri_hdr.ecpri_seq_id.seq_id, mf, *seqid);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  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->data_sec_hdr.fields.all_bits);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">/* update RBs */</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  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-><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>  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> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"sec [%d %d] pkt [%d %d] rboff_bytes %d rblen_bytes %d\n"</span>,sectinfo-><a class="code" href="structxran__section__info.html#a6b13285aabf8f2f4598143b2670204c1">startPrbc</a>, sectinfo-><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>  rboff_bytes, rblen_bytes);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  dst->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> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">/* update length */</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  dst->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>  <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> }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <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> {</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  uint32_t i;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">for</span> (i = 0; i != num; i++)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  rte_pktmbuf_free(mb[i]);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> 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> <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>  <span class="keyword">struct</span> rte_mbuf **pkts_out,</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  uint16_t nb_pkts_out,</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  uint16_t mtu_size,</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">struct</span> rte_mempool *pool_direct,</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">struct</span> rte_mempool *pool_indirect,</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <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>  uint8_t *seqid)</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">struct </span>rte_mbuf *in_seg = NULL;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  uint32_t out_pkt_pos = 0, in_seg_data_pos = 0;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  uint32_t more_in_segs;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  uint16_t fragment_offset, frag_size;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  uint16_t frag_bytes_remaining;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <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>  <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> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">/*</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <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> <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> <span class="comment"> */</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  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> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"frag_size %d\n"</span>,frag_size);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  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> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  in_hdr_xran = &in_hdr-><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> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <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>  <span class="keywordflow">if</span> (unlikely(frag_size * nb_pkts_out <</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  (uint16_t)(pkt_in->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>  <a class="code" href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a>(<span class="stringliteral">"-EINVAL\n"</span>);</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">return</span> -EINVAL;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  in_seg = pkt_in;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  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>  out_pkt_pos = 0;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  fragment_offset = 0;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  more_in_segs = 1;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">while</span> (likely(more_in_segs)) {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <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>  uint32_t more_out_segs;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <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> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">/* Allocate direct buffer */</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  out_pkt = rte_pktmbuf_alloc(pool_direct);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">if</span> (unlikely(out_pkt == NULL)) {</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <a class="code" href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a>(<span class="stringliteral">"pool_direct -ENOMEM\n"</span>);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  __free_fragments(pkts_out, out_pkt_pos);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> -ENOMEM;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"[%d] out_pkt %p\n"</span>,more_in_segs, out_pkt);</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <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>  <span class="comment">//out_pkt->data_len = sizeof(struct xran_up_pkt_hdr);</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="comment">//out_pkt->pkt_len = sizeof(struct xran_up_pkt_hdr);</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <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>  rte_panic(<span class="stringliteral">"sizeof(struct xran_up_pkt_hdr)"</span>);</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  frag_bytes_remaining = frag_size;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  out_seg_prev = out_pkt;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  more_out_segs = 1;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">while</span> (likely(more_out_segs && more_in_segs)) {</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  uint32_t len;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor">#ifdef XRAN_ATTACH_MBUF</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">struct </span>rte_mbuf *out_seg = NULL;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">/* Allocate indirect buffer */</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"Allocate indirect buffer \n"</span>);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  out_seg = rte_pktmbuf_alloc(pool_indirect);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">if</span> (unlikely(out_seg == NULL)) {</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <a class="code" href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a>(<span class="stringliteral">"pool_indirect -ENOMEM\n"</span>);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  rte_pktmbuf_free(out_pkt);</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  __free_fragments(pkts_out, out_pkt_pos);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">return</span> -ENOMEM;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  }</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"[%d %d] out_seg %p\n"</span>,more_out_segs, more_in_segs, out_seg);</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  out_seg_prev->next = out_seg;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  out_seg_prev = out_seg;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">/* Prepare indirect buffer */</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  rte_pktmbuf_attach(out_seg, in_seg);</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  len = frag_bytes_remaining;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">if</span> (len > (in_seg->data_len - in_seg_data_pos)) {</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  len = in_seg->data_len - in_seg_data_pos;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="preprocessor">#ifdef XRAN_ATTACH_MBUF</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  out_seg->data_off = in_seg->data_off + in_seg_data_pos;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  out_seg->data_len = (uint16_t)len;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  out_pkt->pkt_len = (uint16_t)(len +</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  out_pkt->pkt_len);</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  out_pkt->nb_segs += 1;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> {</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <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>  <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>  <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> </div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"rte_pktmbuf_attach\n"</span>);</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span>(iq_src && iq_dst)</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  rte_memcpy(iq_dst, iq_src, len);</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <a class="code" href="xran__printf_8h.html#a16c2c0a30b31515830a4a8eff6cf10b5">print_err</a>(<span class="stringliteral">"iq_src %p iq_dst %p\n len %d room %d\n"</span>, iq_src, iq_dst, len, rte_pktmbuf_tailroom(out_pkt));</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> }</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  in_seg_data_pos += len;</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  frag_bytes_remaining -= len;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="comment">/* Current output packet (i.e. fragment) done ? */</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">if</span> (unlikely(frag_bytes_remaining == 0))</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  more_out_segs = 0;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">/* Current input segment done ? */</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">if</span> (unlikely(in_seg_data_pos == in_seg->data_len)) {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  in_seg = in_seg->next;</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  in_seg_data_pos = 0;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">if</span> (unlikely(in_seg == NULL))</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  more_in_segs = 0;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  }</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">/* Build the XRAN header */</span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"Build the XRAN header\n"</span>);</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  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> </div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  __fill_xranhdr_frag(out_hdr, in_hdr_xran,</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  (uint16_t)out_pkt->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>  fragment_offset, sectinfo, more_in_segs, seqid);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  fragment_offset = (uint16_t)(fragment_offset +</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  out_pkt->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> </div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="comment">//out_pkt->l3_len = sizeof(struct xran_up_pkt_hdr);</span></div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">/* Write the fragment to the output list */</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  pkts_out[out_pkt_pos] = out_pkt;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <a class="code" href="xran__printf_8h.html#a417ba2c3b49b216e358bc340346bf1cf">print_dbg</a>(<span class="stringliteral">"out_pkt_pos %d data_len %d pkt_len %d\n"</span>, out_pkt_pos, out_pkt->data_len, out_pkt->pkt_len);</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  out_pkt_pos ++;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">//rte_pktmbuf_dump(stdout, out_pkt, 96);</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">return</span> out_pkt_pos;</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> }</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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>
-<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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