We do some sanity checks for incoming rlc control packets. One of them
is to check that so_start is not > so_end when present.
But when 'range' is present and bigger than 1 it means that so_start refers
to one PDU and so_end to another one. So we may well have so_start > so_end.
This commit fixes that and reorganizes a bit the code to do the check before
processing and rejecting the PDU if the values are not correct. (Before this
commit we were NACKing the whole PDUs if so_start > so_end.)
- enabled procedures that were already called for phy-test mode
- enabled setup of DRB for the current C-RNTI
- enhanced information, debugging and warning logging at MAC/RLC/PDCP level
This commit introduces several enhancements in X2AP and RRC to deal
with ENDC. The main goal is to deal with UE's on/off and with various
errors.
The following work is included:
- DC prep and DC overall X2 timers
- X2 messages for UE release and DC timers' timeout
Open problems:
- what to do when the UE sends an scg Failure? This commit removes
the UE. And this removal may not be correctly done
- UE removal in the gNB's PHY layer (a next commit is coming,
but it is hackish and will need a rework)
also correction for Circular Dependency Protection on header files
also correction on the banner check
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>
RLC has timers. We need to keep track of time. We chose to not use
realtime but 'processing time'. That is we send a tick to RLC for every
subframe when it is processed by the softmodem. Before this commit we
used to increase time in the function mac_rlc_status_ind which is called
for every subframe in the eNB, but not in the gNB (at least not in the
current gNB). So we need another way to keep track of time.
The function gNB_dlsch_ulsch_scheduler is called for every slot. It seems
to be the perfect candidate to send a tick to RLC for every subframe. We
take care of subcarrier spacing to send every subframe (one subframe is
always 1ms), not every slot (slot duration depends on subcarrier spacing).
It may not be the best solution. To be revised if needed.
Note: the UE has not been fixed. Some modification is needed for the UE
too, most probably.
Previously, the various rlc_*_ind() functions had a parameter to enable
the MAC to specify the max TB size that a subsequent call to the
corresponding rlc_*_req() (!) function would return. This patch removes
this parameter from the rlc_*_ind() functions and makes the parameter
working that is already in the rlc_*_req() functions.
hardy