Use docker cache, reduce the number of installed apt packages, add docker ignore
entry for build directory
Signed-off-by: Bartosz Podrygajlo <bartosz.podrygajlo@openairinterface.org>
Fix imscope and tracy build
Make headers required in imscope includable in C++ sources by removing
direct and indirect inclusions of VLAs.
Closes: #1076
Reviewed-By: Robert Schmidt <robert.schmidt@openairinterface.org>
This introduces 7.2 ORAN fronthaul library components that will be used
to implement an O-RU.
Directory Structure
- core/: Low-level networking and timing primitives.
* fh_recv: DPDK-based packet reception with callback support.
* fh_send: Immediate packet transmission utilities.
* fh_timer: GPS/System-aligned timing for symbol-accurate operations.
- oru/: O-RU specific application logic.
* oru_packet_processor: Manages C-Plane/U-Plane synchronization, IQ
data (un)packing, and TDD pattern validation
* oru_io: High-level I/O manager that integrates core primitives with
the packet processor.
* oru_fh: future integration that will provide a unified interface for
the entire fronthaul stack
- xran_pkt/: Protocol definition and API.
Architecture Overview
The library is designed for low latency and high throughput, leveraging
DPDK for direct hardware access. A key design principle is the
serialization of timer events and packet reception on the same thread,
which simplifies state management in the packet processor by avoiding
complex locking mechanisms.
For a pictoral representation, check MR !4096
Thread Deployment
1. Fronthaul Worker Thread (DPDK lcore)
This thread runs the fh_recv_run loop. It is responsible for:
- Polling the NIC for incoming eCPRI packets.
- Executing initial packet parsing and processing callbacks.
- Ticking the symbol timer.
2. Application threads
The O-RU application threads can utilize the thread-safe nature of
get_dl_iq and write_ul_iq to do parallel processing as needed.
Testing
Many unit tests were added, most notably a testcase against a PCAP
capture of the OAI O-DU C+UPlane configured with the liteon 4x4 config
(273 prb/jumbo frame)
Assisted-By: Gemini:Flash-3
Assisted-By: Gemini:Flash-3.5
Assisted-By: Gemini:Pro-3.1
Reviewed-By: Teodora Vladić <teodora.vladic@openairinterface.org>
This commit addresses several architectural issues in vrtsim, specifically
regarding how peer antenna counts are managed. Some additional changes
were made to allow unit tests and several fixes were delivered.
Key changes:
1. Refactored peer antenna management:
- Removed the redundant 'peer_info_t' structure which overlapped with
ue_config and client_info.
- Added explicit 'peer_tx_ant' and 'peer_rx_ant' fields to vrtsim_state_t.
- Server now pulls peer info from the UE config, while Client pulls it from
the GNB info published by the server.
2. Refactor taps_client to be thread safe
3. Fixed a bug where only the first antenna IQ was read from underlying SHM
mechanism
4. Test / usability related changes:
- Added support for configurable SHM channel names via
'--vrtsim.shm_channel_name' to prevent IPC conflicts between tests.
- Reduced the sleep() calls inside the code to reduce test runtime and
speedup vrtsim connection initialization and cleanup
- Added a unit tests for:
+ transparent channel mode
+ taps_client mode
+ cirdb mode
Signed-off-by: Bartosz Podrygajlo <bartosz.podrygajlo@openairinterface.org> and assisted by Gemini
Test the new O-RU packet processor against PCAP capture.
There are two testcases added:
- test_oru_pcap_1 - which tests DL & UL fragmentation using jumbo frames (9600 mtu)
- test_oru_pcap_frag - which injects the same pcap but tests the mtu to 1500 to force
large amounts of UL UPlane fragments
Signed-off-by: Bartosz Podrygajlo <bartosz.podrygajlo@openairinterface.org> and assisted-by Gemini
This commit introduces a set of component libraries that can
be used to implement packet processing library for 7.2 fronthaul
interface.
Signed-off-by: Bartosz Podrygajlo <bartosz.podrygajlo@openairinterface.org> and assisted-by Gemini
Rename this option from CUDA_ENABLE, as it might otherwise conflict with
another option for LDPC CUDA. For consistency, name the compile option
to CHANNEL_SIM_CUDA. This way, the LDPC CUDA option (ENABLE_LDPC_CUDA
and compile definition LDPC_CUDA) will not conflict, and the
corresponding code is clearly "labelled".
A further change is the use of target_sources to simplify the definition
of the channel_pipeline executable.
Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>
Add a new Dockerfile for optional features of OAI. Currently only imscope
is added but other features could be added in separate stages.
Build using:
docker build . -f ci-scripts/docker/Dockerfile.build.optional.ubuntu
Signed-off-by: Bartosz Podrygajlo <bartosz.podrygajlo@openairinterface.org>
The previous commit is only necessary because not everything is built in
unit tests...
Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>
This commit introduces ZMQ-based radio library. Each pair of RX/TX antennas is
represented by a ZMQ REQ/REP socket pair which streams continuous IQ samples
from radio start until stop.
Usage:
Simplest configuration is to connect OAI NR UE to OAI GNB with the same number
of antennas - by inverting the RX and TX channels in ZMQ radio configuration the
gNBs TX is mapped to UEs RX antennas and vice versa.
We don't enforce cppcheck through the CI, although it's there since
years. It runs on Ubuntu 18/20, so it's old. For folks, it's likely not
discoverable on how to run it locally. Let's make a fresh start.
This removes cppcheck from all CI-related code. Instead, it adds it
under tools/cppcheck/, including documentation on how to run it locally,
bare-matel or in docker.
Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>
- remove test_multipath and test_noise from ChanelSim tests of
RAN-Channel-Simulation pipeline - will be executed together with the
other CUDA-enabled unit tests
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly
For automated changes based on OAI PL v1.1:
perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml
The rest (cmake, files with missing license, cmake) manually.
As DEBIAN_FRONTEND has been set as environment variable, there is no need to use DEBIAN_FRONTEND=noninteractive inside RUN lines, it is redundant, hence it has been removed.
Libboost went from 1.74.0 to 1.83.0 alongside Ubuntu update.
GCC version is set as default to be more practical.
In Ubuntu22, apt sources were in .list files, in Ubuntu24 they are in .sources files.
Add --break-system-packages for pip installation to use same logic as before, see the pip update 23.0.1 (2023-02-17).
With Ubuntu24 liboai_device requires libpython3.12
See e.g., egrep(1) [https://linux.die.net/man/1/egrep]:
> two variant programs egrep and fgrep are available. egrep is the same
> as grep -E. fgrep is the same as grep -F. Direct invocation as either
> egrep or fgrep is deprecated
See also the rationale of the POSIX description of grep
(https://pubs.opengroup.org/onlinepubs/9699919799/utilities/grep.html):
> This grep has been enhanced in an upwards-compatible way to provide
> the exact functionality of the historical egrep and fgrep commands as
> well. It was the clear intention of the standard developers to
> consolidate the three greps into a single command.
Closes: #839
This commit adds yaml-cpp library to required docker images and build commands. There is one workaround
in cross-compilation for apt behavior for installing libyaml-cpp-dev. Apt will uninistall previous
versions of the package whenever another one is installed. This means that installing the arm version
breaks amd version and vice versa. This makes it impossible to have both libs installed at the same
time which is required by the cross-compilation build command (it calls cmake twice, once with native
and once with target architecture)
This updates all images in the CI to Ubuntu 22. It also updates
corresponding documentation. Remove python(2) from the image, as it is
not needed. Update documentation.
It seems that the gcc coming in Ubuntu 22 does not like
stack-protector-strong, so remove it as well.
Since we compile Flexric, which does not support Ubuntu 22's default
gcc-11 (it hits a compile bug), switch to gcc-12 manually.
Since we update the compiler, we also need to be careful to use the right
address sanitizer version (which is bundled with the compiler version).
To avoid a reinstallation of the wrong asan version in target images, we
modify Ubuntu 22 targets to copy libasan from the base image. This is necessary
since we use update-alternative in the base image, but we don't want to
install compilers in the target images to use update-alternatives to
install the right asan version... This should be undone when switching
to Ubuntu 24 in the future, as it will have a newer default gcc version,
such that we don't need to update the compile in the first place.
Upgrade libpython in lteUE for U22 upgrade to make it compatible with
UHD.
