1.change inline usage in code and mvec in makefile to adapt to GCC version
[o-du/phy.git] / docs / build_prerequisite.rst
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18
19 Build Prerequisite
20 ====================
21
22 .. contents::
23     :depth: 3
24     :local:
25     
26 This section describes how to install and build the required components needed to build the FHI Library, WLS Library and the 5G FAPI TM modules.
27
28 Install ICC
29 ------------
30 Intel® C++ Compiler v19.0.3 is used for the test application and system integration with L1, 
31 The Intel® C++ Compiler can be obtained using the following link https://software.intel.com/en-us/system-studio/choose-download with community |br|
32 license::
33
34          COPY $icc_license_file $BUILD_DIR/license.lic
35     
36 *Note: The version available at this link is always the latest ICC version, the verification for that version may not have been 
37 performed yet, so please provide feedback through O-DU Low project WIKI page if you face any issues.*
38
39
40 You can follow the installation guide from above website to download Intel System Studio and install. Intel® Math Kernel Library, Intel® Integrated Performance Primitives and Intel® C++ Compiler are mandatory components.
41 Here we are using the Linux* Host,Linux* Target and standalone installer as one example, below link might need update based on the website ::
42
43          #wget https://registrationcenter-download.intel.com/akdlm/irc_nas/16789/system_studio_2020_u2_ultimate_edition_offline.tar.gz
44          #cd /opt && mkdir intel && cp $BUILD_DIR/license.lic intel/license.lic
45          #tar -zxvf $BUILD_DIR/system_studio_2020_u2_ultimate_edition_offline.tar.gz
46
47 Edit system_studio_2020_ultimate_edition_offline/silent.cfg to accept the EULA file as below example::
48   
49          ACCEPT_EULA=accept
50          PSET_INSTALL_DIR=opt/intel
51          ACTIVATION_LICENSE_FILE=/opt/intel/license.lic
52          ACTIVATION_TYPE=license_file
53     
54 Silent installation::
55
56          #./install.sh -s silent.cfg
57
58 Set env for ICC::
59  
60          #source /opt/intel/system_studio_2020/bin/iccvars.sh intel64
61          #export PATH=/opt/intel/system_studio_2020/bin/:$PATH
62
63
64 Download and Build DPDK
65 -----------------------
66    - download DPDK::
67      
68          #wget http://static.dpdk.org/rel/dpdk-19.11.tar.x
69          #tar -xf dpdk-19.11.tar.xz
70          #export RTE_TARGET=x86_64-native-linuxapp-icc
71          #export RTE_SDK=Intallation_DIR/dpdk-19.11
72
73    - patch DPDK for O-RAN FHI lib, this patch is specific for O-RAN FHI to reduce the data transmission latency of Intel NIC. This may not be needed for some NICs, please refer to |br| O-RAN FHI Lib Introduction -> setup configuration -> A.2 prerequisites
74
75    - SW FEC was enabled by default, to enable HW FEC with specific accelerator card, you need to get the associated driver and build steps from the accelerator card vendors.
76
77
78    - build DPDK
79       build DPDK::
80         Set your ICC installation path to /usertools/dpdk-setup.sh, DEFAULT_PATH="your ICC installation path"/bin/iccvars.sh, then run it to build DPDK with below option. 
81         #./usertools/dpdk-setup.sh
82         select [39] x86_64-native-linuxapp-icc
83         exit   [62] Exit Script
84         please pay attention, the number 39 might change in your setup, you need choose accordingly to option 'x86_64-native-linuxapp-icc'   
85   
86     - set DPDK path
87        DPDK path is needed during build and run lib/app::
88
89         #export RTE_SDK=Installation_DIR/dpdk-19.11
90         #export DESTDIR=Installation_DIR/dpdk-19.11
91
92
93 Install google test
94 -------------------
95 Download google test from https://github.com/google/googletest/releases 
96    - Example build and installation commands::
97
98         #tar -xvf googletest-release-1.7.0.tar.gz
99         #mv googletest-release-1.7.0 gtest-1.7.0
100         #export GTEST_DIR=YOUR_DIR/gtest-1.7.0
101         #export GTEST_ROOT= $GTEST_DIR
102         #cd ${GTEST_DIR}
103         #g++ -isystem ${GTEST_DIR}/include -I${GTEST_DIR} -pthread -c ${GTEST_DIR}/src/gtest-all.cc
104         #ar -rv libgtest.a gtest-all.o
105         #cd ${GTEST_DIR}/build-aux
106         #cmake ${GTEST_DIR}
107         #make
108         #cd ${GTEST_DIR}
109         #ln -s build-aux/libgtest_main.a libgtest_main.a
110
111 - Set the google test Path
112    this path should be always here when you build and run O-RAN FH lib unit test::
113
114         #export DIR_ROOT_GTEST="your google test path"
115
116
117 Configure FEC card
118 --------------------
119 For the Bronze Release only a SW FEC is available so this step is not needed, for later releases the required information will be added to the document.
120
121 Customize a setup environment shell script
122 ------------------------------------------
123 Using as an example the provided in the folder phy\\setupenv.sh as the starting point
124 customize this script to provide the paths to the tools and libraries that
125 are used building and running the code.
126 You can add for example the following entries based on your particular installation and the
127 following illustration is just an example::
128                                                                            
129 - export DIR_ROOT=/home/                                                           
130 - #set the L1 binary root DIR                                                      
131 - export DIR_ROOT_L1_BIN=$DIR_ROOT/FlexRAN                                         
132 - #set the phy root DIR                                                            
133 - export DIR_ROOT_PHY=$DIR_ROOT/phy                                                
134 - #set the DPDK root DIR                                                           
135 - #export DIR_ROOT_DPDK=/home/dpdk-19.11                                           
136 - #set the GTEST root DIR                                                          
137 - #export DIR_ROOT_GTEST=/home/gtest/gtest-1.7.0                                                                                                                   
138 - export DIR_WIRELESS_TEST_5G=$DIR_ROOT_L1_BIN/testcase                            
139 - export DIR_WIRELESS_SDK=$DIR_ROOT_L1_BIN/sdk/build-avx512-icc                    
140 - export DIR_WIRELESS_TABLE_5G=$DIR_ROOT_L1_BIN/l1/bin/nr5g/gnb/l1/table           
141 - #source /opt/intel/system_studio_2019/bin/iccvars.sh intel64 -platform linux     
142 - export XRAN_DIR=$DIR_ROOT_PHY/fhi_lib                                            
143 - export XRAN_LIB_SO=true                                                          
144 - export RTE_TARGET=x86_64-native-linuxapp-icc                                     
145 - #export RTE_SDK=$DIR_ROOT_DPDK                                                   
146 - #export DESTDIR=""                                                                                                                                              
147 - #export GTEST_ROOT=$DIR_ROOT_GTEST                                                                                                                             
148 - export ORAN_5G_FAPI=true                                                         
149 - export DIR_WIRELESS_WLS=$DIR_ROOT_PHY/wls_lib                                    
150 - export DEBUG_MODE=true                                                           
151 - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$DIR_WIRELESS_WLS:$XRAN_DIR/lib/build    
152 - export DIR_WIRELESS=$DIR_ROOT_L1_BIN/l1                                          
153 - export DIR_WIRELESS_ORAN_5G_FAPI=$DIR_ROOT_PHY/fapi_5g                           
154 - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$DIR_ROOT_L1_BIN/libs/cpa/bin        
155
156 Then issue::
157
158 - source ./setupenv.sh
159
160 This sets up the correct environment to build the code
161
162 Then build the wls_lib, FHI_Lib, 5G FAPI TM prior to running the code with the steps described in the Run L1 section
163                                                                                  
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