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537 Commits (a4605883f0ac26e061b2b1eb4fe89250def8a065)

Author SHA1 Message Date
Pedro Alvarez 0e828aeb4b Remove unecessary mutex. PDCP metrics are accessed from the stack thread. 4 years ago
Pedro Alvarez c39905744c Fix metrics of TX PDUs and TX_PDU bytes in PDCP 4 years ago
Pedro Alvarez 451c305790 Add mutex to isolate metrics_hub thread from the stack thread when 
getting the metrics from the PDCP
 4 years ago
Pedro Alvarez 0c240a80aa Fix up PDCP metrics to calculate the buffered bytes when get_metrics is 
called.
 4 years ago
Pedro Alvarez 46cd29e0ac Temporarly disable sending status report and retrasnsmissions on reestablishment in PDCP 4 years ago
Pedro Alvarez df501d1500 Clear underlivered SDUs info map for SRBs on reestablishment 4 years ago
Pedro Alvarez d705fa2106 Tentative fix for errors due to status report already present in RLC info queue 4 years ago
Pedro Alvarez ba5367bc56 Change order which reestablish is called in eNB 
Make sure that RLC info queue is reset when reestablish happens
 4 years ago
Pedro Alvarez cfd94441a5 Added metrics to srsenb PDCP 4 years ago
Pedro Alvarez 8873b7c42f Added computation for the metrics 4 years ago
Pedro Alvarez d34aba8065 Added interfaces to get metrics from PDCP entities. 4 years ago
Pedro Alvarez eb2f5b978f Starting to add metrics to lib/upper/pdcp.cc 4 years ago
Francisco 6a178693a8 handle rrc configs with pdcp with sn=15 or 18 bits 4 years ago
Pedro Alvarez e2d2951b00 Added some extra logging for the PDCP get_buffered_pdus and notification reception. 4 years ago
Pedro Alvarez 963dff34af Added retransmissions to the UE's PDCP on re-establishment. 4 years ago
Pedro Alvarez e0542a4651 Fix issue in sending PDCP status PDU from the eNB due to non-existing LCID at the RLC. 4 years ago
Pedro Alvarez b0fe302f8e Added interfaces so the upper layers can trigger the PDCP status report. Added ability to the UE to send Status Report aftre reestablishment. 4 years ago
Pedro Alvarez 89a23cec7e Added statusReportRequired to the PDCP entity config. 4 years ago
Pedro Alvarez f89b644902 Added function to get control pdu type to the PDCP base class. Shorten logger name in PDCP Status report test. 4 years ago
Pedro Alvarez 90113419c2 Added memset(0) to PDCP status report bitmap before starting to fill it in. 4 years ago
Pedro Alvarez 9bc08af880 - Added ability to the PDCP LTE entity to send PDCP Status report. 
- Added handling of PDCP status report to the PDCP LTE entity.
- Added test to the generation and handling of PDCP status report.
 4 years ago
Francisco Paisana 4152e43bab fix gtpu packing when extension header is enabled 4 years ago
Pedro Alvarez dd6d6f731d Passing SN provided by upper layers to PDCP entity. Using it to calculate TX_COUNT if passed. 4 years ago
Pedro Alvarez 492ea2a5a8 Addressing reviewers comments to #2290. 
Removing unecessary \n for logs and changed log of PDCP info queue
 capacity to debug to avoid log spam.
Changed log level for unhandled S1AP messages from error to warning
 in EPC to avoid failing tests because of error message.
Changed usage of allocate_unique_buffer to make_unique_buffer()
 4 years ago
Pedro Alvarez fcaaf72187 Starting to add discard functionality to PDCP LTE entity. 
This includes:
  - Adding a queue (implemented with std::map) for undelivered PDUs.
    This queue uses the SN used for TX as the key.
  - Added discard timer that is started upon reception of the SDU. Upon
    expiry of the timeout a discard callback removes undelivered PDUs
from the queue.
  - Added the mechanisms to the notify_delivery to remove PDUs from the
    undelivered queue when the PDU is ACK'ed.
  - Added test case for both timer expiry and acknowledgment.
  - Fix up the getter for buffered SDUs to return the undelivered SDUs
  - Changed default PDCP discard timer, so AM has a discard timer by
    default.
 4 years ago
faluco 57f66febfc Ported the RLC classes to srslog in the lib dir. 4 years ago
faluco f424f2e113 - Upgraded PDCP classes in lib to use srslog. 
- Update tests to new changes.
 4 years ago
faluco 6359a2d948 - Upgrade the gtpu class in lib dir to srslog. 
- Propagate old log elimination through all the dependencies of gtpu.
 4 years ago
Francisco 4188b5146e fix uninitialized memory access in gtpu_test and liblte_mme unpacking 4 years ago
Francisco 04ab4eefcd use new make_byte_buffer() helper method to create unique_byte_buffers 4 years ago
Pedro Alvarez 7b25eac47c Fix race condition in rlc_am_stress test and other fixes related to this 
test. The race condition was being cause by write_sdu being called
simultanously to read_pdu, which could cause the read_pdu to try to get
the SDU info before it had been written by the write_sdu.

Changes in this commit include:
 - Make sure PDCP sn in included in RLC AM stress test.
 - Stop handling control PDU when TX is not enabled in RLC AM.
 - Fixed issue with length of the PDCP SN in rlc_stress_test.
 - Moved the place were sdu info erase was called to avoid double calls to erase
 - Tentative fix for race condition in rlc_am_stress test.
 - Added function to print information about undelivered_sdu_info_queue
   for debugging.
 4 years ago
Pedro Alvarez 261c2b2e03 Removed limit to the undelivered SDUs info queue in RLC AM. Printing a warning if the queue is getting large instead. 4 years ago
Pedro Alvarez d0ef6ce00b Fix typos and bad comments in rlc_am_lte.cc and rlc_am_test.cc 
Added checks for the nack_sn in the status reports of the rlc_am_test.
 4 years ago
Pedro Alvarez 24db20bcca Removed some unused variables after changing method of tracking notifications. Removed rlc_am_notify_pdcp test file. Testing is now in rlc_am_test.cc 4 years ago
Pedro Alvarez 6c071a784c Changed notification mechanisms to use map of acked SNs instead of acked bytes. 
This was required due to an issue where bytes were counted twice when a
packet had been lost.
 4 years ago
Pedro Alvarez 649d642776 Moved notification tests from rlc_am_notify_pdcp_test.cc to rlc_am_test.cc. 
This added some tests to resegmentation.
 4 years ago
Pedro Alvarez 389cf4d943 Moved updating the notify info to it's own function. 4 years ago
Pedro Alvarez de669d214a Fix test header and queue_capacity check in RLC notifications. 
Also, remove unecessary nullptr initializaion and fixup some newlines.
 4 years ago
Pedro Alvarez de90b4753f Added the ability of the RLC AM to notify the PDCP of the acknowledged 
PDCP PDUs. This includes:

- Modifying the byte_buffer_t to include PDCP SN meta-data. This way,
  the RLC can keep track of the ack'ed bytes for a specific PDCP PDU.
- Added in the RLC an `undelivered_sdu_info queue`, to keep track of the
  amount of ack'ed bytes and the total size of the PDCP PDU,
  so the RLC can know when delivery is finished.
- Added an interface between the PDCP and the RLC so that the RLC can
  notify the PDCP when it receives an ack from the status PDUs. The RLC
  passes to the PDCP a vector of all the ack'ed pdus in a rx'ed status PDU.
- Added some tests to the notify functionality. This includes some tests
  where the PDUs are acked imediatly, and one test where the PDU is
  retx'ed.
 4 years ago
Francisco e8f6a436af update gtpu test to account for scenario of buffered PDCP SNs, and buffering of direct path until indirect tunnel is closed 4 years ago
Francisco a55c4cdca5 avoid gtpu extension header pdcp number magic number 4 years ago
Francisco 13649e4e19 Implement new GTPU functionality: 
- multiple tunnels per E-RAB
- data forwarding between connected GTPU tunnels
- forwarding GTPU End Marker between connected tunnels
- TeNB GTPU handles in-sequence delivery when multiple tunnels for the same ERAB exist.
 4 years ago
Pedro Alvarez 350e90a030 Make RLC retransmissions deterministic. It was creating unpredictablity 
in the RLC AM tests. See issue #2228
 4 years ago
Pedro Alvarez 6ca8bc12ec Fix wrong SN in RLC status PDU when packet is dropped. 4 years ago
Ismael Gomez a6423442c2
Refactor NR RA files and fix header includes all over library (#2162) 
* Refactor NR resource allocation classes. Use DCI instead of grant for dummy PDSCH UE/eNB test

* Minor refactors in NR workers and ue_dl

* Fix include issues

* fix compilation issues
 4 years ago
faluco 92b11c1adb Backport misc changes from the fapi repo. 4 years ago
Pedro Alvarez 0ad0e9acac Make sure that RLC entity is only re-created if it switches modes. 4 years ago
Pedro Alvarez 0c20b7a455 Added support for S1AP modify bearer request support. This includes: 
- Handle received E-RAB S1AP at s1ap.cc.
 - Added methods to rrc.cc, rrc_ue.cc and rrc_bearer_cfg.cc to handle erab modify request.
 - Made RLC add_bearer() function capable of re-creating the RLC entity.
 - Send RRC reconfiguration to the UE and reply to the EPC with S1AP
   modify bearer response.

This commit also adds support to srsEPC to send S1AP modify bearer request for
testing purposes.
 4 years ago
Andre Puschmann 48b37394f1 rlc: remove unneeded log entry 
was added for testing only
 4 years ago
Andre Puschmann bc4c9606ce rlc_am: add extended bearer metrics 
this patch adds support for measuring the:
* SDU rx latency (Average time in ms from first RLC segment to full SDU)
* amount of buffered bytes (sum of payload of PDUs buffered in rx_window)

the implementation is using std::chrono
 4 years ago