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

ldpc_aal: handle T2 case in runtime

Browse Source
This commit is contained in:
Xin Zhe Khooi
2025-08-05 18:38:17 +02:00
committed by Robert Schmidt
parent 0d4246e354
commit f6aeb21d97
6 changed files with 70 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files
doc/LDPC_OFFLOAD_SETUP.md
+3 -2
View File
@@ -236,7 +236,7 @@ Ensure that the CPU cores specified in `nrLDPC_coding_aal.dpdk_core_list` are av
- `nrLDPC_coding_aal.num_harq_codeblock` - optional parameter, size of the HARQ buffer in terms of the number of 32kB blocks, by default set to *512* (maximum for the T2; as for the ACCs, this can be further increased).
- `nrLDPC_coding_aal.eal_init_bbdev` - optional parameter, set this to 1 when using with FHI72 with the Intel ACCs. For the T2, this is not required.
- `nrLDPC_coding_aal.is_t2` - optional parameter, set this to 1 when using the Xilinx T2 card.
**Note:** These parameters can also be provided in a configuration file.
Example for the ACC200:
@@ -257,6 +257,7 @@ loader : {
# Running OAI with O-RAN AAL
In general, to offload of the channel coding to the LDPC accelerator, we use use the `--loader.ldpc.shlibversion _aal` option.
Reminder, if you are using the Xilinx T2 card, make sure to set `--nrLDPC_coding_aal.is_t2 1`.
## 5G PHY simulators
@@ -288,7 +289,7 @@ Example command:
cd ~/openairinterface5g
source oaienv
cd cmake_targets/ran_build/build
sudo ./nr-softmodem -O ~/gnb.conf --loader.ldpc.shlibversion _aal --nrLDPC_coding_aal.dpdk_dev 0000:f7:00.1 --nrLDPC_coding_aal.dpdk_core_list 14-15 --nrLDPC_coding_aal.vfio_vf_token 00112233-4455-6677-8899-aabbccddeeff --nrLDPC_coding_aal.eal_init_bbdev 1
sudo ./nr-softmodem -O ~/gnb.conf --loader.ldpc.shlibversion _aal --nrLDPC_coding_aal.dpdk_dev 0000:f7:00.1 --nrLDPC_coding_aal.dpdk_core_list 14-15 --nrLDPC_coding_aal.vfio_vf_token 00112233-4455-6677-8899-aabbccddeeff
```
# Known Issue(s)