maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Create a cmake API for O_RAN SC xran forked repo

Browse Source 
* create the xran forked repo as a cmake external project - easier to maintain and track the changes
  we applied to the original repo
* add xran_DOWNLOAD option - clones and builds latest supported K release
* update the FHI README for K release

Signed-off-by: Teodora Vladić <teodora.vladic@openairinterface.org>
This commit is contained in:
Teodora Vladić
2026-04-23 10:06:14 +02:00
parent 5b1f09faf1
commit e7c4d80a5d
3 changed files with 76 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmake_targets/tools/MODULES/Findxran.cmake
+6 -15
View File
@@ -46,13 +46,7 @@
# ``xran_LIBRARY``
# The path to the xran library.
option(xran_LOCATION "directory of XRAN library" "")
if (NOT xran_LOCATION)
message(FATAL_ERROR "xran_LOCATION required")
endif()
if (NOT EXISTS ${xran_LOCATION})
message(FATAL_ERROR "no such directory: ${xran_LOCATION}")
endif()
set(CACHE{xran_LOCATION} TYPE PATH HELP "directory of XRAN library" VALUE "")
find_path(xran_INCLUDE_DIR
NAMES
@@ -73,16 +67,14 @@ find_library(xran_LIBRARY
PATH_SUFFIXES build api
NO_DEFAULT_PATH
)
if (NOT xran_LIBRARY)
message(FATAL_ERROR "could not detect xran build artifacts at ${xran_LOCATION}/build")
endif()
set(xran_VERSION_FILE "${xran_LOCATION}/../app/src/common.h")
if(NOT EXISTS ${xran_VERSION_FILE})
message(FATAL_ERROR "could not find xran version file at ${xran_VERSION_FILE}")
if(EXISTS ${xran_VERSION_FILE})
file(STRINGS ${xran_VERSION_FILE} xran_VERSION_LINE REGEX "^#define[ \t]+VERSIONX[ \t]+\"[a-z_.0-9]+\"$")
else()
set(xran_VERSION_LINE "UNKNOWN")
endif()
file(STRINGS ${xran_VERSION_FILE} xran_VERSION_LINE REGEX "^#define[ \t]+VERSIONX[ \t]+\"[a-z_.0-9]+\"$")
string(REGEX REPLACE "^#define[ \t]+VERSIONX[ \t]+\"([a-z_.0-9]+)\"$" "\\1" xran_VERSION_STRING "${xran_VERSION_LINE}")
if (xran_VERSION_STRING MATCHES "^oran_e_maintenance_release_v")
string(REGEX REPLACE "oran_e_maintenance_release_v([0-9]+).([0-9]+)" "5.\\1.\\2" xran_VERSION ${xran_VERSION_STRING})
@@ -93,9 +85,8 @@ elseif(xran_VERSION_STRING MATCHES "^oran_k_release_v")
elseif(xran_VERSION_STRING MATCHES "^oran_bronze_release_v")
string(REGEX REPLACE "oran_bronze_release_v([0-9]+).([0-9]+)" "2.\\1.\\2" xran_VERSION ${xran_VERSION_STRING})
else()
message(FATAL_ERROR "unrecognized xran version string: ${xran_VERSION_STRING}")
set(xran_VERSION "UNKNOWN")
endif()
message(STATUS "Found xran release ${xran_VERSION_STRING} (v${xran_VERSION})")
unset(xran_VERSION_LINE)
unset(xran_VERSION_STRING)
unset(xran_VERSION_FILE)
doc/ORAN_FHI7.2_Tutorial.md
+24 -8
View File
@@ -72,9 +72,9 @@ Tested libxran releases:
| Vendor |
|-----------------------------------------|
| `oran_f_release_v1.0` |
| `oran_k_release_v1.0` |
**Note**: The libxran driver of OAI identifies the above F release version as "6.1.0" (F is the sixth letter, then 1.0).
**Note**: The libxran driver of OAI identifies the above F release version as "6.1.0" (F is the sixth letter, then 1.0), and the above K release as "11.1.0".
### Configure your server
@@ -274,7 +274,7 @@ timedatectl set-ntp false
### DPDK (Data Plane Development Kit)
Download DPDK version 20.11.9.
Download DPDK version 20.11.9 (F release) or 24.11.4 (K release).
```bash
# on debian
@@ -282,7 +282,8 @@ sudo apt install wget xz-utils libnuma-dev
# on Fedora/RHEL
sudo dnf install wget xz numactl-devel
cd
wget http://fast.dpdk.org/rel/dpdk-20.11.9.tar.xz
wget http://fast.dpdk.org/rel/dpdk-20.11.9.tar.xz # F release
wget http://fast.dpdk.org/rel/dpdk-24.11.4.tar.xz # K release
```
#### DPDK Compilation and Installation
@@ -290,10 +291,11 @@ wget http://fast.dpdk.org/rel/dpdk-20.11.9.tar.xz
```bash
# Installing meson : it should pull ninja-build and compiler packages
# on debian
sudo apt install meson
sudo apt install python3-pyelftools meson
# on Fedora/RHEL
sudo dnf install meson
tar xvf dpdk-20.11.9.tar.xz && cd dpdk-stable-20.11.9
sudo dnf install python3-pyelftools meson
tar xvf dpdk-20.11.9.tar.xz && cd dpdk-stable-20.11.9 # F release
tar xvf dpdk-24.11.4.tar.xz && cd dpdk-stable-24.11.4 # K release
meson build
ninja -C build
@@ -359,7 +361,8 @@ pkg-config --libs libdpdk --static
Go back to the version folder you used to build and install
```
cd ~/dpdk-stable-20.11.9
cd ~/dpdk-stable-20.11.9 # F release
cd ~/dpdk-stable-24.11.4 # K release
sudo ninja deinstall -C build
```
@@ -384,6 +387,13 @@ git checkout oran_f_release_v1.0
git apply ~/openairinterface5g/cmake_targets/tools/oran_fhi_integration_patches/F/oaioran_F.patch
```
#### K release
```bash
git clone https://github.com/openairinterface/o-du-phy.git ~/phy
cd ~/phy
git checkout <desired-tag> # shall match a variable `K_VERSION`
```
Compile the fronthaul interface library by calling `make` and the option
`XRAN_LIB_SO=1` to have it build a shared object. Note that we provide two
environment variables `RTE_SDK` for the path to the source tree of DPDK, and
@@ -398,6 +408,7 @@ This feature is intended to enable experiments and future improvements on Arm sy
cd ~/phy/fhi_lib/lib
make clean
WIRELESS_SDK_TOOLCHAIN=gcc RTE_SDK=~/dpdk-stable-20.11.9/ XRAN_DIR=~/phy/fhi_lib make XRAN_LIB_SO=1 # F release
WIRELESS_SDK_TOOLCHAIN=gcc RTE_SDK=~/dpdk-stable-24.11.4/ XRAN_DIR=~/phy/fhi_lib make XRAN_LIB_SO=1 # K release
...
[AR] build/libxran.so
./build/libxran.so
@@ -483,7 +494,10 @@ Note that you might also call cmake directly instead of using `build_oai`:
```
cd ~/openairinterface5g
mkdir build && cd build
# build RAN after manually building xran F or K release
cmake .. -GNinja -DOAI_FHI72=ON -Dxran_LOCATION=$HOME/phy/fhi_lib/lib
# build RAN and xran K release automatically
cmake .. -GNinja -DOAI_FHI72=ON -Dxran_DOWNLOAD=ON
ninja nr-softmodem oran_fhlib_5g params_libconfig
```
@@ -1636,6 +1650,8 @@ PKG_CONFIG_PATH=/opt/mplane-v2/lib/pkgconfig cmake .. -GNinja -DOAI_FHI72=ON -DO
ninja nr-softmodem oran_fhlib_5g_mplane params_libconfig
```
Note: instead of setting `xran_LOCATION`, feel free to use `xran_DOWNLOAD` option for automatic xran K release build.
### Start the gNB
Run the `nr-softmodem` from the build directory:
```bash
radio/fhi_72/CMakeLists.txt
+46 -7
View File
@@ -21,15 +21,54 @@ add_library(oran_fhlib_5g MODULE
set(F_VERSION 6.1.9)
set(K_VERSION 11.1.1)
find_package(xran REQUIRED)
if(xran_VERSION VERSION_GREATER_EQUAL 5 AND xran_VERSION VERSION_LESS 6)
message(FATAL_ERROR "xran E release not supported starting from tag 2026.w08.\nPlease switch to F version ${F_VERSION}")
elseif(xran_VERSION VERSION_EQUAL F_VERSION)
target_compile_definitions(oran_fhlib_5g PRIVATE F_RELEASE)
elseif(xran_VERSION VERSION_EQUAL K_VERSION)
add_boolean_option(xran_DOWNLOAD OFF "Download and build xran library" OFF)
find_package(xran)
if(xran_FOUND)
if(xran_VERSION VERSION_GREATER_EQUAL 5 AND xran_VERSION VERSION_LESS 6)
message(FATAL_ERROR "xran E release not supported starting from tag 2026.w08.\nPlease switch to F version ${F_VERSION} or K version ${K_VERSION}")
elseif(xran_VERSION VERSION_EQUAL F_VERSION)
target_compile_definitions(oran_fhlib_5g PRIVATE F_RELEASE)
elseif(xran_VERSION VERSION_EQUAL K_VERSION)
if(dpdk_VERSION VERSION_LESS 22)
message(FATAL_ERROR "DPDK version miniminum 22 required for K release, but found ${dpdk_VERSION}")
endif()
target_compile_definitions(oran_fhlib_5g PRIVATE K_RELEASE)
else()
message(FATAL_ERROR "Found xran version ${xran_VERSION} but needed ${F_VERSION} (F release) or ${K_VERSION} (K release)")
endif()
elseif(NOT xran_FOUND AND xran_DOWNLOAD)
if(dpdk_VERSION VERSION_LESS 22)
message(FATAL_ERROR "DPDK version miniminum 22 required for K release, but found ${dpdk_VERSION}")
endif()
include(ExternalProject)
set(xran_DIR "${CMAKE_BINARY_DIR}/.deps/src/extern_xran/fhi_lib/lib")
ExternalProject_Add(extern_xran
PREFIX ${CMAKE_BINARY_DIR}/.deps
GIT_REPOSITORY https://github.com/openairinterface/o-du-phy.git
GIT_TAG ${K_VERSION}
CONFIGURE_COMMAND "" # nothing to configure
BUILD_COMMAND cd fhi_lib/lib && WIRELESS_SDK_TOOLCHAIN=gcc RTE_SDK=${dpdk_PREFIX} XRAN_DIR=.. make XRAN_LIB_SO=1
BUILD_IN_SOURCE ON
INSTALL_COMMAND ""
BUILD_BYPRODUCTS ${xran_DIR}/build/libxran.so
)
add_library(xran::xran UNKNOWN IMPORTED)
add_dependencies(xran::xran extern_xran)
# This is a workaround for the fact that included directories of an imported
# target should exist in the filesystem already at the configuration time.
# ref: https://gitlab.kitware.com/cmake/cmake/-/issues/15052
file(MAKE_DIRECTORY "${xran_DIR}/api/")
file(MAKE_DIRECTORY "${xran_DIR}/build/")
set_target_properties(xran::xran PROPERTIES
IMPORTED_LOCATION "${xran_DIR}/build/libxran.so"
INTERFACE_INCLUDE_DIRECTORIES "${xran_DIR}/api/"
)
message(STATUS "xran not found. Will clone and build automatically K release ${K_VERSION}")
target_compile_definitions(oran_fhlib_5g PRIVATE K_RELEASE)
else()
message(FATAL_ERROR "Found xran version ${xran_VERSION} but needed ${F_VERSION} (F release) or ${K_VERSION} (K release)")
message(FATAL_ERROR "could not find xran, and auto-download disabled. Update
xran_LOCATION, or set -Dxran_DOWNLOAD=ON")
endif()
# Ignore xran-specific warning: we don't care/can't change the following warning, so suppress