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15 Commits (d54c33258b576b02b4ba904e411ba2afb7d72853)

Author SHA1 Message Date
Francisco Paisana 53116a99fc add rlc metrics to rlc_um 4 years ago
Andre Puschmann 07d2bc4fe8 change license header to agnostic version with hint to root LICENSE file 4 years ago
Andre Puschmann 6d3af2d2bd rlc_um: fix bearer name in logging after re-configuration 
the RLC bearer name was empty after reestablishing a UM bearer.

we need to pass the RLF config and RB name to the internal configure()
call of the Rx entity, like we already do for the Tx side
 4 years ago
Andre Puschmann c8b4ba885b rename rlc_tx_queue to byte_buffer_queue 
this data structure will be used by the PDCP layer as well.
 5 years ago
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
 5 years ago
Andre Puschmann ff96336f91 rlc_um: fix reestablishment for sending UM entity 
we've reset the rx state variables during reestablishment but not
the tx state variable.
 5 years ago
Andre Puschmann fc3cd24177 rlc_um: fix counting of lost PDUs 
* change try_push() return value to indicate whether the addition
  of the SDU to the tx queue was successful or not
* count lost PDUs
 5 years ago
Ismael Gomez a1f0f8de35
Add callback to RLC to indicate BSR for TX and reTX queues (used in ENB) (#1361) 5 years ago
Xavier Arteaga 77d5dedddc Fix LGTM warnings and recommendations 5 years ago
Francisco Paisana 575475962f the rlc um rx does not need a mutex bc it is always called in the stack thread 5 years ago
Francisco Paisana 344eaf49ec use logmap in the whole enb and ue 5 years ago
Xavier Arteaga e832769ae6 Updated copyright 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 a77dd4e959 Starting to add boiler-plate code to support Discard at RLC. 5 years ago
Andre Puschmann b20f7ba541 refactor RLC UM and add NR receiver 5 years ago