1. Removed SDAP struct from protocol context.
2. Added configuration for the SDAP.
3. SDAP doesn't use pdcp_entities, the values come from function arguements.
4. Make nr_pdcp_ue_manager accessible from SDAP.
5. Avoid using the PDCP locking mechanism in SDAP.
6. Removed nr_pdcp_find_entity_sdap function.
7. Rename dummy eNB function to make GTP compile (no SDAP).
8. Fix: Regression issues with LTE
9. Fix: Regression issues with NR CU/DU
nr_DRB_preconfiguration() is used in phy-test mode by both, OAI UE and gNB, and in all other modes by OAI UE.
Because of inconsistencies, data transfer with OAI UE was only reliably working in phy-test mode.
Ultimately, OAI UE should use nr_DRB_preconfiguration() only in phy-test mode and do proper DRB configuration instead in all other modes!
Before this commit, pdcp_data_ind is done in the realtime PHY/MAC
thread, and this may have an impact on realtime performances.
Let's introduce a new thread to do the job, freeing the realtime
PHY/MAC logic.
This is not a minor change. It may have positive and/or negative
effects. To be tested carefully.
This commit includes about 1/3 of the code clean up
in preparation for the merge to the OAI develop
branch. Several of the changes are white space changes,
removing of logs, comment removals, and updating any
changed code for our use-case to be clear for NSA mode.
Note: some modifications have been done to the UE too, but for syntactic
reasons. The UE may fail to work, not tested.
For the UE, we have the problem of handling properly SecurityModeCommand.
We don't verify its integrity. This is a bit complicated to handle properly
and may require some API changes in the PDCP layer. So, as of today, the
integrity of this message is not verified.
Also, NSA mode has been touched, but it should not be a problem. But not
tested, so not sure.
In this commit we have updated the NRUE
to properly get the RadioBearer info from
the gNB. Because NSA and SA mode both use
this information, we have updated the SA
function previously in place by changing
the name to allow both NSA and SA mode to
use. This commit also updated the NR/LTE UEs
configuration files to with the correct
proxy IP address.
Robert Schmidt