Commit Graph

148 Commits

Author SHA1 Message Date
Pau Espin 5dc6e465cb Drop unneeded arg 'ta' in tbf_alloc_ul()
The function is simply setting the ta on the ms, so simply make sure ta
is set on callers before passing the ms object.

Change-Id: Iebb9c57f458690e045ddc45c800209ad8cf621e0
2020-05-14 11:19:05 +00:00
Pau Espin 322456ed47 Expect ms object to exist before calling tbf_alloc_dl_tbf()
Same as previous commit, this time for the DL counterpart.

Change-Id: I87f6cdf8288a688466020bda0874e68b57aa71c4
2020-05-12 17:09:20 +00:00
Pau Espin 17402a5902 Expect ms object to exist before calling tbf_alloc_ul_tbf()
It's really non-sense from architectural point of view to pass an
optional pointer to the MS holding the TBF and creating it otherwise.
TBFs shouldn't be creating MS they belong too.

This simple change requiring so many code line changes really exhibits
how badly entangled the object relationship is.

Another commit will follow doing the same for dl tbf.

Change-Id: I010aa5877902816ae246e09ad5ad87946f96855c
2020-05-12 17:09:20 +00:00
Vadim Yanitskiy 3f27fb56e4 TBF/UL: fix rcv_data_block_acknowledged(): print the actual TLLI
Change-Id: I71b5c656d4b318d11bd5fe2b5d163c3a06e09a6a
2020-04-20 13:18:49 +07:00
Pau Espin 506eb23dc5 fix typo in log message
Change-Id: Ib6fc4625242d855193b62b561624b23b265648b9
2019-12-31 17:01:34 +00:00
Pau Espin 30f6617c79 tbf_dl.cpp: Fix typo in log line
Change-Id: I9fdea4246c95897f3e72604981597db828a219a3
2019-12-04 18:11:52 +01:00
Vadim Yanitskiy fd734de4d1 GprsMs::update_cs_ul(): clarify the meaning of old_link_qual
Change-Id: Iad703a573621c64613b9b8c229079dc63fcaeb9e
2019-11-08 06:20:55 +07:00
Vadim Yanitskiy 87b6e7dbed tests/tbf: suspend warnings about the link quality measurements
Share a single instance of 'pcu_l1_meas' between all unit tests,
set initial measurement values in main(). This way we can get
rid of the following warnings:

  Unable to update UL (M)CS CS-X because we don't have link quality measurements.

Change-Id: I1c82076df6cd0833d243e1e6afb140bae3bd2ec9
Fixes: OS#3828
2019-11-08 04:44:07 +07:00
Pau Espin 474dc77894 tests: TbfTest: Unify stderr and stdout to ease debugging
osmo-pcu code is really verbose, and since log lines printing start and
end of tests are sent to a different file, it's really difficult to
understand which test outputs what.

Change-Id: I3e887158e2c9585c360d44f12f995f55861170f2
2019-09-16 14:21:21 +00:00
Pau Espin 28f160e76c Introduce osmo_tdef infra and timer VTY commands
This will allow for configuration of some of the timers by the user,
and allow him to inspect current values being used.
It will be also useful for TTCN3 tests which may want to test some of
the timers without having to wait for lots of time.

Timers are splitted into 2 groups: BTS controlled ones and PCU controlled
ones. The BTS controlled ones are read-only by the user (hence no
"timer" VTY command is provided to change them).

TbfTest.err output changes due to timers being set up correctly as a
consequence of changes. Other application such as pcu_emu.cpp and
pcu_main.cpp had to previosuly set the initial values by hand (and did
so), but apparently TbfTest.c was missing that part, which is now fixed
for free.

Depends: libosmocore.git Id56a1226d724a374f04231df85fe5b49ffd2c43c
Change-Id: I5cfb9ef01706124be262d4536617b9edb4601dd5
2019-09-12 14:17:07 +02:00
Max 0e6ac799f7 TS alloc: expand tests log
* restructure code for easier reading
* use consistent formatting for output
* log essential allocation parameters on failure

Change-Id: I4b78951a79ddbc0745b39d091080a4e0e247d3c5
Related: OS#2282
2019-03-28 08:58:41 +00:00
Max a0353547b1 TBF-DL: log MCS as string
Log MCS name instead of numeric value.

Change-Id: I3e1925a010a6def5fd14da63b73e0b75feddfafc
2019-03-19 18:27:49 +01:00
Max a3ff316c5f Use unique NSEI/BVCI/NSVCI in TBF tests
This works around the issue with colliding rate counter group index
highlighted by 86e35e4887 by using
different NSEI/BVCI/NSVCI parameters for different TBF tests.

Change-Id: Id7d2d1a48308a6b1fb17768aee0e79adbdee56ee
Related: OS#3827
2019-03-14 09:30:20 +00:00
Max fa3085b45e Log (M)CS UL update errors
Previously some of the errors in update_cs_ul() call were silently
ignored. Let's log all those as errors with appropriate message.

Note: test output needs updating because we do not (yet) set proper meas
struct in TBF tests. That's likely wrong but it's better to update tests
in a separate commit.

Change-Id: I4084fb281dd9dad04a2a3a68cac2a8f7b462548e
2019-03-07 17:05:19 +00:00
Max 86e35e4887 Enable LGLOBAL logging for TBF tests
This exposes the bug in BSSGP rate counter group allocation in the
current tests version which should be fixed in a separate commit.

Change-Id: I6317eccfb1408c5c9d07110a8b059f5ceb5d2afc
2019-03-07 12:20:42 +01:00
Stefan Sperling 082443d2c7 change log level of "DL packet loss" log messages
The TBF tests are failing on some machines due to unexpected
log output: "DL packet loss of IMSI= / TLLI=0xffeeddcc: 0%"
These messages are printed if >= 1 second has passed between
loss reports. This timing is machine-dependent so the test
is unstable as a result. Only print these messages at log
level debug to (hopefully) make TBF tests pass consistently.
Update expected test output accordingly.

Change-Id: Ie43f0e3a8740f0fc132809a09a153886c51fadf9
2018-06-05 11:42:12 +02:00
Philipp Maier 33c52b6271 tbf: add frame number to log output
Currently, the TBF timer log messages lack the frame number in
the logoutput

- Add frame number to TBF timer related log-statements

Change-Id: I5a744dc5cd7c1de1baea13fffac026c83d091429
Related: SYS#4139
Patch-by: Octasic inc.
2018-04-12 12:46:44 +02:00
Max 77988d469d Simplify TS alloc: move slot assignment
Move into separate functions:
* move timeslot reservation
* move UL timeslot assignment
* move DL timeslot assignment

Change-Id: I64cf78c5cfc78664766f9769dd5cde632dab92b0
Related: OS#2282
2018-02-21 12:08:38 +00:00
Max f633b8d8b2 Simplify TS alloc: split off RX mask computation
Move computation of RX mask into separate function and document it. This
allows to significantly shrink find_multi_slot() function and overall
improve code readability.

Since the test output requires cosmetic adjustment anyway due to change
in the sequence of log messages, use this opportunity to better group
and format log message.

Change-Id: I731726a096bba7ee97499e5cbe3e7401869d7392
Related: OS#2282
2018-02-19 09:00:19 +00:00
Max 5d7f757e49 TBF: add helpers for assignment type handling
* add function to set/unset given assignment type
* log assignment type flag changes
* update tests output with additional logs

This enables us to carefully track the TBF assignment type transitions.

Change-Id: I3fe9d52472be8b7f257e8326b2f84e8e7d7bd1f4
Related: OS#1759
2018-02-03 15:05:29 +00:00
Max 164b59d757 TBF: decrease L1 logging verbosity in test
Don't clutter output with low-level details.

Change-Id: I451f2472070dea2387bfaea45ca5bdd9e3b2276d
2018-01-25 19:54:57 +01:00
Max fdd79e9828 TBF: adjust test log levels
* enable debugging for DTBF*
* disable excessive DRLCMAC*

Change-Id: I122620941e7939d513742c8589a75e0ab76f79ab
2018-01-24 11:07:01 +01:00
Max 0524e38d9e TBF: add dedicated log categories
Previously all TBF-related events were logged as part of DRLCMAC which
is too broad to make it practically useful due to excessive amount of
log messages generated. Introduce dedicated log categories for
TBF-related events. Adjust test output as necessary.

Change-Id: I64d660e5971263d5c63d2ba95d50625c16a594aa
2018-01-19 18:49:16 +01:00
Max 6298fbb7b2 Use Timing Advance Index in UL assignments
Write TAI (if available) when generating Rest Octets for UL
Assignment. This should not affect actual PCU behavior because TAI is
not yet supported by upper layers but we have to adjust corresponding
tests anyway.

Change-Id: I8b17be78a46c0bc17516b7c90f35aa4768010ae4
2018-01-17 10:50:14 +00:00
Max 93d947f5e8 Rewrite Packet Uplink Assignment
Use bitvec_set_*() directly without external write pointer tracking to
simplify the code. This is part of IA Rest Octets (3GPP TS 44.018
§10.5.2.16) which is the last part of the message so it should not
interfere with the rest of encoding functions.

The tests are adjusted accordingly.

Change-Id: I44db2eeea7448ff67e688ae716487bc6dbfc96a3
Related: OS#1526
2018-01-17 10:50:14 +00:00
Max 896574e92b Rewrite Packet Downlink Assignment
Use bitvec_set_*() directly without external write pointer tracking to
simplify the code. This is part of IA Rest Octets (3GPP TS 44.018
§10.5.2.16) which is the last part of the message so it should not
interfere with the rest of encoding functions.

The tests are adjusted accordingly.

Change-Id: I52ec9b07413daabba8cd5f1fba5c7b3af6a33389
Related: OS#1526
2018-01-17 10:50:14 +00:00
Max 9d7357e4fe TBF: unify EGPRS window calculation
Move actual calculation into shared function and use it to set window
size for TBF. TBT test output requires cosmetic adjuestements due to
extended debug output.

Change-Id: Ib9f4a277082da3c71007f5f3b4f2acac8b994540
Related: OS#1759
2018-01-12 15:29:42 +01:00
Max c21f007277 Introduce LOGTBF* for consistent logging
When troubleshooting complex issues with TBF lifecycle, it's much easier
to follow the logs which are consistently formatted. Add LOGTBF*() macro
similar to struct-specific log routines we use in other Osmocom project
and use it to log TBF-related messages in a unified way. Tweak test
output accordingly.

Related: OS#2407
Change-Id: I388249afefc32d2f6e5cb5e5abc6daf4dbd284ea
2017-12-20 14:14:40 +00:00
Max cea806e5b9 TBF: expand timer logging
* log timer values
* log start/stop cause
* update test output as necessary

This simplifies debugging issues with TBF timers.

Related: OS#2407
Change-Id: Ib8e537416af9bec5d447356286f44e9e8bbf1b7a
2017-12-05 18:47:22 +00:00
Max 59f50c2718 TBF: log timer override
Currently TBF support only single Txxxx timer so scheduling another
timer will cancel out the one which is already running. Until the proper
fix is in place, let's at least log this situation as error.

Note: cosmetic adjustement to test output is required - we do not report
restart of the same timer twice because "restarting" assumes it anyway.

Change-Id: I462464a1e6df937b72cad65d19cd48e95dc4db45
Related: OS#2407
2017-12-04 10:55:47 +01:00
Max 5759a19020 TBF-DL: extend index check for RLC block copy
Log number of RLC blocks to copy and assert if trying to copy too many
blocks.

Change-Id: I01cbc26ec67400a44e9fff3f9a30d729320380f9
Fixes: CID143069
2017-09-08 12:58:28 +00:00
Max f60cf62f4f Simplify polling troubleshooting
* introduce enum describing poll kind and use it in set_polling()
* move state change into set_polling()
* move logging into set_polling() and unify output
* move duplicated code into static function
* adjust tests to match unified logging output

Change-Id: I14074207f8bbc18b3ebd60875bb99a0a3a4b399d
Related: OS#1524
2017-08-14 15:19:08 +00:00
Alexander Couzens 333d7e6345 tbf.cpp: use new tlli instead of old tlli
The old tlli might be 0x00000000.

Change-Id: I2fd6fec022506e203d05e91c36ccd9e020ff816c
2017-05-01 16:57:48 +00:00
Philipp Maier 53f0b4deb6 cosmetic: Fix log output
In BTS::rcv_rach() the log output is messed up because of a stray
"\n". This commit removes that.

Change-Id: I40d01c71982ad83589f070cf0047a4ae04695411
2017-02-01 14:19:04 +00:00
aravind sirsikar e9a138e111 Handle packet access reject during packet resource request
When Packet resource request is received, PCU will generate the
packet access reject if no resources are present. The encoding is done
based on section 7.1.3.2.1 and 8.1.2.5 of 44.060 version 7.27.0 Release 7.
This patch also includes the test case to validate the generated
packet access reject message.

This patch is integration tested on Osmo-trx setup with Ettus B210 board
and LG F70 MS with some simulation code changes in Osmo-pcu.

Change-Id: I05ff25124b58905586caa0c0c37023d69724f121
2017-01-24 13:11:51 +00:00
sivasankari 1d8744ce96 Add test case for testing PUAN
This test case is for testing generation of
EGPRS PUAN. Corresponding log files .ok and .err
are modified.

Change-Id: I18e6d4a9e90fd6453fe14187beab27dfeae8dbe9
2017-01-24 15:53:35 +05:30
sivasankari 8adfcd06a1 Add compression support in EGPRS PUAN
This adds compression of bitmap in PUAN. The compressed bitmap
is used only if the number of bits in the bitmap does not fit in
the message and there is a gain after compression.
The algorithm is part of libosmocore and so there is dependency
on the libosmocore for compilation.
The algorithm is tested on integration setup by forcing compression.

Change-Id: Id2eec4b5eb6da0ebd24054b541b09b700b9b40ba
2017-01-23 12:26:09 +00:00
Pravin Kumarvel 06bdb3550c Refactoring write_packet_ack_nack_desc_egprs to prepare for CRBB support
Change-Id: Ie5c25b6ee30f2f1b613e923c234b03a6ffe12ae2
2017-01-06 10:36:07 +00:00
Max e66de5b5ae Improve logging
Add value_string describing UL and DL TBF states and use it for logging
errors while freeing TBFs.

Change-Id: I292ec81ab602c65ef86e6e3e85740182b63474b6
2017-01-05 18:39:25 +01:00
Mrinal Mishra 0e63644d14 Add debugging log for RLC data block decoding
Added debugging log for RLC UL Data Block decoding for both GPRS/EGPRS cases.

Change-Id: I8c197bdc4cd1330cbab0adfd188336d27682cec4
2016-12-02 09:15:53 +00:00
aravind sirsikar ed3413e397 Handle packet access reject during EPDAN/PDAN with channel description
When PDAN/EPDAN with channel description is received, PCU will generate the
packet access reject if no resources are present. The encoding is done
based on section 7.1.3.2.1 and 8.1.2.5 of 44.060 version 7.27.0 Release 7.
This patch also includes the test case to validate the generated
packet access reject message.

This patch is integration tested on Osmo-trx setup with Ettus B210 board
and LG F70 MS with some simulation code changes in Osmo-pcu.

Change-Id: I096a3bb44a65533b9e9b091925dd5f70a8696d6
2016-11-11 17:15:10 +05:30
aravind sirsikar c0c3afd079 Handle Immediate assignment reject
When RACH is received, PCU will generate the Immediate assignment reject
message if no resources are present. The encoding is done based on section
9.1.20 of 44.018 version 11.7.0 Release 11. This patch also includes the
test case to validate the generated Immediate assignment reject message.

This patch is integration tested on Osmo-trx setup with Ettus B210 board
and LG F70 MS with some simulation code changes in Osmo-pcu.

Change-Id: I3d33e2b9746fa4f338fad0e6b63b1c5f07de6f9b
2016-11-09 16:27:00 +05:30
aravind sirsikar fb41afaaf6 EGPRS: fix for EPDAN out of window
Fix alignment of EPDAN outside the RLC transmit window,
according to section 9.1.8.2.4 in 44.060 version 7.27.0 Release 7.
The specification explains that a bit within the uncompressed bitmap
whose corresponding BSN is not within the transmit window shall be
ignored. Without this fix PCU was dropping the EPDAN message and not
updating the status of BSNs which are inside the RLC window. This patch
updates the status of the BSNs which are inside the window and ignores
the remaining bits.

Related: OS#1789

Change-Id: Id07d178970f168f5389016c1eea31eb6b82057b6
2016-11-02 15:48:00 +05:30
aravind sirsikar f276138202 EGPRS: add test case to show EPDAN BSN out of window bug
This patch adds a test case test_tbf_epdan_out_of_rx_window,
which expects a current bug with EPDAN for interpretation of the
bitmap explained in section 9.1.8.2.4 in 44.060 version 7.27.0
Release 7. The specification explains that a bit within the
uncompressed bitmap whose corresponding BSN is not within the
transmit window shall be ignored. But current PCU implementation
drops the EPDAN and does not update status of the BSN which are
inside the window. The test's expectation is corrected along with
the bug fix in a subsequent commit.

Related: OS#1789

Change-Id: If32b67f5c05707155281128b776a90a1e3d587b2
2016-10-30 03:15:22 +00:00
Neels Hofmeyr 4ea452689d Revert "tbf: Add state WAIT_ASSIGN"
This reverts commit f1a7b8fc66.

Conflicts:
	tests/tbf/TbfTest.err

The commit broke GPRS service at least for osmo-bts-sysmo on a SysmoBTS 1002
with current master of osmo-bts (ef30f50d5d6d5f863fc147d05ccdceb89284934e).

The error observed is the following log output (was viewing both osmo-bts-sysmo
and osmo-pcu logs interleaved):

<0002> tbf.cpp:874 TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=WAIT ASSIGN) T3169 timeout during transsmission
<0002> tbf.cpp:893 - Assignment was on CCCH
<0002> tbf.cpp:899 - No uplink data received yet
<0007> l1sap.c:904 RACH for packet access
<0001> pcu_l1_if.cpp:311 RACH request received: sapi=1 qta=0, ra=121, fn=13653
[repeat]

When removing this single commit from current osmo-pcu master, GPRS service
works well on SysmoBTS, with current osmo-bts master.

The TbfTest.err expected output needed adjustment after the revert.

Disclaimer: I am not aware of adverse effects this commit may have. I have no
idea what the WAIT_ASSIGN state is used for -- further review is required.

Change-Id: I1532f8e93194368cdc1e3846f82afa6d68cd5fbd
2016-10-18 14:48:36 +02:00
Aravind Sirsikar 0ee31cfa38 Fix EGPRS DL window calculation during tbf update
Earlier there was no handling for recalculation of DL window
size during tbf update. Which has been fixed in this patch.

Related: OS#1808
Change-Id: I41aa807068520460fd665a55e3529e60f6bbb630
2016-09-15 17:54:46 +05:30
Aravind Sirsikar 22a901905c EGPRS: Fix issue with row 4 of Table 10.4.14a.1 of 44.060 version 7.27.0 Release 7
row 4 of Table 10.4.14a.1 of Spec 44.060 version 7.27.0 Release 7. Says
"The previous RLC data block contains a Upper Layer PDU, or a part of it,
that fills precisely the previous data block and for which there is no
length indicator in that RLC data block.
The current RLC data block contains a Upper Layer PDU that either fills
the current RLC data block precisely or continues in the next RLC data block."
So when we receive block with 1st LI: value=0 and Value of E bit in the
same octet as 1, we expect 2 chunks with 1st chunk as length as 0 and complete
and 2nd chunk as length non zero. But with this bug we see only 1 chunk causing
incorrect assembling

This issue has been fixed in this patch.

Related: OS#1811

Change-Id: I2cd0fca3ed28a553ede3f4b8a7d3267284dd2c9b
2016-09-15 17:24:49 +05:30
Aravind Sirsikar 3463bd4adc EGPRS: add test case to show LI decoding bug
This patch adds a test case test_tbf_li_decoding which
expects a current bug with LI decoding for row 4 of Table 10.4.14a.1
in 44.060 version 7.27.0 Release 7.
The test's expectation is corrected along with the bug
fix in a subsequent commit

Related: OS#1811

Change-Id: Ida410dab1aa4b0cf3e15b2090586377eb19b2469
2016-09-15 17:19:54 +05:30
Aravind Sirsikar 8d2d9e8985 TBF flow: unit test compilation error fix
The test failure was introduced by 9bbe1600cc
"Fix Timing Advance handling": between patch build checking and patch
submission, a new section was added to TbfTest.cpp which also needs adjustment.

Tweaked-by: Neels Hofmeyr <nhofmeyr@sysmocom.de>
Change-Id: If077da5f21fd5cba54556f1dead05a1bc4ea5540
2016-09-12 15:16:38 +02:00
Max 9bbe1600cc Fix Timing Advance handling
* initialize with invalid TA instead of making assumption that phone is
  located within 550 meters (TA=0)
* only set valid TA

Change-Id: Idfc40ff0c11bdac13d9e28fbfa4e95dfc6b735b0
Related: OS#1526
2016-09-09 06:37:04 +00:00