45 Commits (58a9610efaac3a6cd88a51486529c3452c2f8dbe)

Author SHA1 Message Date
Andre Puschmann a7911f0dab pdcp,rlc: refactor SDU queueing policy
this patch refactors the SDU queuing and dropping policy of the RLC and PDCP layer.
the previous design had issues when packets have been generated at a higher
rate above the PDCP than they could be consumed below the RLC.

When the RLC SDU queues were full, we allowed two policies, one to block on the write
and the other to drop the SDU. Both options are not ideal because they either
lead to a blocking stack thread or to lost PDCP PDUs.

To avoid this, this patch makes the following changes:

* PDCP monitors RLC's SDU queue and drops packets on its north-bound SAP if queues are full
  * a new method sdu_queue_is_full() has been added to the RLC interface for PDCP
* remove blocking write from pdcp and rlc write_sdu() interface
  * all writes into queues need to be non-blocking
  * if Tx queues are overflowing, SDUs are dropped above PDCP, not RLC
* log warning if RLC still needs to drop SDUs
  * this case should be avoided with the monitoring mechanism
4 years ago
Andre Puschmann 7f47edf67f fix issue where PDCP SDU was not going through UE stack to SS
this cause the PDCP echo reply not to appear in MAC/PCAP
4 years ago
Daniel Willmann a3adba0081 Implement DRB establishment and handle rx/tx 4 years ago
Daniel Willmann 0e99e2f6eb srsue: Refactor definition to live in its own .cc file 4 years ago
Francisco Paisana b506e29b72 removed common ce_typeenum 5 years ago
Francisco Paisana 6ddedd5972 moved pdu to common mac folder 5 years ago
Francisco Paisana c09f76ed6c unified stack task defer method 5 years ago
Andre Puschmann 451bbb20e8 ttcn3_ss: refactor AS security activation and use new timed call 5 years ago
Andre Puschmann 54a99d3f66 ttcn3_dut: add basic DRB handler skeleton
the handler is currently just listening on the designated port
and prints the received JSON string
5 years ago
Francisco Paisana 30ae2226c1 common interface for stack multiqueue tasks, background tasks and timers 5 years ago
Andre Puschmann 9239bb14a6 ss: store current TTI in DL/UL grant struct
this fixes the TTI log in the PCAP generated by the UE
5 years ago
Andre Puschmann 5267a88d60 ttcn3_ss: remove unneeded NDI reset 5 years ago
Andre Puschmann 562b4ef6c8 ttcn3_ss: add missing timer stepping 5 years ago
Francisco Paisana 344eaf49ec use logmap in the whole enb and ue 5 years ago
Francisco Paisana 82cb6baef0 now the whole ue and enb mac uses the logmap 5 years ago
Xavier Arteaga e832769ae6 Updated copyright 5 years ago
Xavier Arteaga 76408b195e Rename TX_DELAY and FDD_HARQ_DELAY_MS 5 years ago
Pedro Alvarez 96c82b3fc6 Moved PDCP configs to pdcp_config.h. Added `as_security_cfg_t` structure to hold access stratum keys.
Refactored PDCP, RRC and USIM accordingly.
5 years ago
Daniel Willmann 1314b8f653 Implement override_lcid() function in ttcn3_sys_interface
Fixes: TC_7_1_1_1 (#6)
5 years ago
Andre Puschmann e7c10270fa ttcn3_ss: fix security activation for PDCP 5 years ago
Andre Puschmann 5a03eaed2b ss: move timing_info_t to ttcn3_helpers, fix PDCP count handling 5 years ago
Andre Puschmann 8a69772ebc rewrite packing of DL PDU in SS
the new algo tries to write more than just one RLC PDU inside a MAC PDU
if this is possible
5 years ago
Andre Puschmann e919c57a32 add handling of FollowOnFlag from tester 5 years ago
Andre Puschmann 89d5876470 add TimingInfo support for remaining SS commands 5 years ago
Andre Puschmann 81e28aa9dc add basic support for TimingInfo field from tester
this fixes an issue where commands are received out of
order and we are therefore applying configs incorrectly. if
commands include a timinginfo we are now putting the command
on a queue that the SS reads after the start of a new TTI.

the security and cell reconfig commands will be added in another
PR after the AS_security command has been fixed.
5 years ago
Andre Puschmann 55a5947df7 add default init to TTCN3 syssim to prevent segfault when tc_start isn't received 5 years ago
Andre Puschmann 39f2011699 fix issue in SS where Msg4 wouldn't be sent because ConnectionSetup is provided too late 5 years ago
Andre Puschmann b88e877b4c ttcn3: make SS single threaded and use SCTP for test ports
- remove all threading from SS
- use epoll to handle test port connections, signals, and timers
- convert testport interface to SCTP
5 years ago
Andre Puschmann 701e4aa6be fix bug causing segfault when UE wasn't initialized 5 years ago
Andre Puschmann 42920d508f fix SS debug output 5 years ago
Andre Puschmann 0e337a01c3 fix SRB2 security handling in SS 5 years ago
Andre Puschmann 3d7598a4cb rewrite cell handling in TTCN3 PHY and SS 5 years ago
Ismael Gomez cc7dfefa1a
Fix logic for UL HARQ retx causing Msg3 adaptive retx to be identified as a new transmission 5 years ago
Andre Puschmann bc6aa1a166 fixing PDCP call in TTCN3 SS
this fixes an issue introduced in 6ec573987a
5 years ago
Pedro Alvarez 6d4303cd94 Added option to force 32bit compilation (useful for debug). Fixed various warnings when compiling in a 32 bit arch. 5 years ago
Andre Puschmann 476f970ee1 replace FIXME with TODO 5 years ago
Pedro Alvarez c5979f59eb Clang format UE, eNB and lib (#850)
* Clang-formated UE, eNB and lib.
* Fixed compiling errors from clang-format.
* Fix linking issues introduced by clang-format
* Fix poor formating in initializing arrays of arrays.
* Fix mistake in conflict resolution on rm_turbo.c
* Re-apply clang format to gtpc_ies.h
5 years ago
Pedro Alvarez 2e7ddef038 Continue to add discard_sdu to RLC interfaces. 5 years ago
Pedro Alvarez c6ddada488 Fix compilation issue when enabling TTCN3 5 years ago
Francisco Paisana 8440126d35 removal of srslte::timers class 5 years ago
Andre Puschmann 755a0599c4 rework cell list and SIB handling in SS 5 years ago
Andre Puschmann 487fdd5616 ttcn3: split SS interface and protect SS main thread properly
the SS main thread and the provided interaces weren't protecting members
correctly
5 years ago
Andre Puschmann c5f52adfba nas: fix issue in which NAS wouldn't allow to attach once it failed
the main issue was the plmn_selected variable. the solution
was to create a function to enter the deregistered state that resets the variable
and performs all other actions that need to be performed, like clearing
EPS bearers.

The patch also extends the SS to support AT commands to enable/disable
data services and now succesfully passes TC_9_2_2_1_7
5 years ago
Andre Puschmann db4cc71240 minor changes to TTCN3 dut to make reading logs easier 5 years ago
Andre Puschmann 9e1c46dfb0 add initial TTCN3 code 5 years ago