Original file from wireshark.git (packet-gsm_csn1.c) is being built and
maintained as a C file. There's no real need for us to maintain it as a
C++, and doing so will make both files derive over time (as already
happened). Let's keep it as a C compiler (which btw seems to be more
strict) to make it easier to port patches back and forth wireshark.git.
Take the chance to move some declarations we added to csn1.h to be able
to build it out of wireshark. Let's keep those in a separate header file
to ease looking for differences.
Change-Id: I818a8ae947f002d35142f9f5473454cfd80e1830
Including the <new> header is required as explained by the c++ specs [1]
osmo-pcu/src/tbf.cpp: In function ‘gprs_rlcmac_ul_tbf* tbf_alloc_ul_tbf(gprs_rlcmac_bts*, GprsMs*, int8_t, uint8_t, uint8_t, bool)’:
osmo-pcu/src/tbf.cpp:1002:39: error: no matching function for call to ‘operator new(sizetype, gprs_rlcmac_ul_tbf*&)’
1002 | new (tbf) gprs_rlcmac_ul_tbf(bts->bts);
| ^
Most of the times this issue is not detected because other STL headers
are already including <new>.
[1] http://www.cplusplus.com/reference/new/operator%20new/
Change-Id: Ie5fb536ae29dcf40e2a0dbe67432bebd61b8c7aa
The problem is that bitvec_free() is not NULL-safe. Ideally we
need to fix it in libosmocore [1], but let's also fix it here,
so OsmoPCU can be safely used with older libosmocore versions.
[1] https://gerrit.osmocom.org/c/libosmocore/+/17114
Change-Id: I7647d17b3d03f8e193ef6e793a2d3c1967744eef
Fixes: CID#208181, CID#208179
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
Those namings my collide with usual osmocom "T" variable name associated
to a timer number, which will be added in following patches.
Change-Id: Ic2b5068a4882e4a043bf81496be30a378fdb9a09
In preparation for Channel Coding Command encoder in follow-up patches
let's add necessary helpers. Those are similar to previously used
helpers from GprsCodingScheme class but without CamelCase and with less
typo chances between Gprs and Egprs cases.
Change-Id: I6699cbc8d7ae766fa4d2b3d37e5f9ff1cf158b7e
Move Mode (EDGE/GPRS) definition and related functions outside of
GprsCodingScheme class. This allows us to use standard libosmocore
value_string functions.
Change-Id: I3baaac7f1ca3f5b88917a23c1679d63847455f47
The '.' is illegal character in counter names, as they are exported
via CTRL interface, where '.' has a special meaning that cannot be
used by strings comprising the variable name.
Change-Id: Ieb7496e1a30ab4f2bfe36c7b664dcdc034010a15
Wrap-around of var handling next id will luckly happen
long after initially assigned TBFs are already released.
Change-Id: I90ef64133986c556c1a529f5b966e847e6cabbad
There have been test failures on the osmo-pcu Jenkins builders due
to apparent clock drift. Switch relevant code from gettimeofday()
to clock_gettime() with CLOCK_MONOTONIC to prevent time from going
backwards and causing negative time deltas in calculations.
Change-Id: I775d85d0d3ac740330879e588bdab6fce7f0b46c
Related: OS#3225
As warned by gcc 8.1.0:
osmo-pcu/src/tbf.cpp: In constructor ‘gprs_rlcmac_tbf::gprs_rlcmac_tbf(BTS*, gprs_rlcmac_tbf_direction)’:
osmo-pcu/src/tbf.cpp:222:33: error: ‘void* memset(void*, int, size_t)’ clearing an object of type ‘struct gprs_rlc’ with no trivial copy-assignment; use assignment or value-initialization instead [-Werror=class-memaccess]
memset(&m_rlc, 0, sizeof(m_rlc));
^
In file included from osmo-pcu/src/tbf.h:24,
from osmo-pcu/src/bts.h:37,
from osmo-pcu/src/tbf.cpp:22:
osmo-pcu/src/rlc.h:234:8: note: ‘struct gprs_rlc’ declared here
struct gprs_rlc {
^~~~~~~~
Change-Id: Ifb0529b9ae6cd4300e5cbbd9151054792edbfe06
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.
* store N310* counters in shared array similar to corresponding timers
* add functions to increment/reset counters
This avoids direct access to TBF counters from PDCH.
Change-Id: I8ffff9c7186f74bde7e6ac5f6e98f0b3e4c35274
Related: OS#1539
The PDCH class and corresponding functions are rather self-contained and
independent from BTS implementation. Let's move them into separate file
to make bts.cpp more manageable. As additional benefit it allow us to
somewhat untangle all the different cross-dependent includes.
Change-Id: Ie05e25361e6741a81b024679f9675c98d4923683
Related: OS#1539
Many files include unnecessary headers and don't include headers which
are actually used. Because of that combined with the fact that OsmoPCU
is a mixture of C and C++, it makes it hard to modularize code. Fix
this (using iwyu [1] tool):
* add missing headers
* remove unused headers
[1] https://include-what-you-use.org/
Related: OS#1539
Change-Id: I8c9f488a43b099c72b2d30d3245e7ba50872fc00
* drop unused parameters (from both functions and structs)
* document used parameters and return values
* tighten types used for parameters
* use consistent formatting
Tests are adjusted accordingly but test results are left untouched to
avoid regressions.
Change-Id: I39d81ab64ff790b9c4c2d0312a574485cd83e755
Related: OS#2282
* add functions/macros for setting TBF's poll state
* add function for checking TBF's poll state
Change-Id: I6db1c4e7bd0a49aeb5e391afe371c36b96c6a702
Related: OS#1539
* add functions/macros for setting TBF's UL ack state
* add functions for checking TBF's UL ack state
N. B: this should not be confused with TBF-UL state.
Change-Id: I144483447d4b0b93e775da0e926ee45eb8ab39f3
Related: OS#1539
* add functions/macros for setting TBF's UL/DL state
* add functions for checking TBF's UL/DL state
* move pre-free check into separate function
N. B: this should not be confused with TBF-UL or TBF-DL state.
Change-Id: Idcbf5775d17b1247f2ed01788f9b0788ce66e871
Related: OS#1539
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
We use the same approach for osmo_fsm: when state transition happens,
it's not very useful to always log the transition function itself, it's
much more useful to see where the actual transition comes from.
Change-Id: I348ba89bdda2b44c7019e9c893c764ee08c80bec
Related: OS#1759
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
The UL and DL TBF use different classes implementing window
management. Hence it's better to use it explicitly instead of using the
common window management superclass inside common TBF superclass. While
at it, also remove the direct access to window class - use accessor
functions instead.
Related: OS#1759
Change-Id: I0b55aa8947db65f7206adcf53ea32b74a831d9e6
* introduce generic function to check whether particular flag was set
for'a TBF and clear it if necessary. Use this instead of
clear_poll_timeout_flag()
* add function to explicitly set assignment and appropriate state flags
Overall this makes the code easier to read and debug.
Related: OS#1759
Change-Id: Ic4560280c72f91700f2e19c6c7f6658dc29625c2
It either returns 0 or LLC queue size() which has size_t return
type. This means it can never be negative - hence it's better to use
size_t as return type.
Change-Id: I2a6e849d349ab12854976bd0d68537a370a9c83d
Fixes: CID181478
Return right after logging error if attempting to start or stop unknown
timer.
Change-Id: Ie6ae564d41a5e03270685c6bafb3504278eb3551
Fixes: CID181512, CID181514
When troubleshooting TBF timers we're not only interested in timer
duration but also in the code which triggered it. Let's use LOGPSRC to
log it: wrap t_start() in a macro for convenience.
Change-Id: If5f883ae52c469e5158bad24da9904fdc455582f
Related: OS#2407
Use generic timer handling infrastracture to handle assignment/reject
internal timer. Rename timer array accordingly. Use defines with
explicit second/microsecond values to make it more readable.
Change-Id: I63fb7e6f0695383a83472c836a381a055f64690b
Properly reset the counter when receiving valid RLCMAC block and update
it when no data is received as per 3GPP TS 44.060 §8.1.1.1
Change-Id: I2f79c6153dc4073c9d293b2824979e6381576682
Fixes: OS#2407
Previously TBF got single timer so the pending timer was automatically
cancelled when new one was scheduled. Let's make it more robust by
implementing independent T31 xx timers from 3GPP TS 44.060 §13.2 with
corresponding start/stop functions and counters.
The semantics of the timers is preserved as before: pending timers are
restarted unconditionally. It might be neecessary to change this later on
after spec review.
N. B. T0: used for assign/reject timeouts, have to be properly
attributed and documented first.
Change-Id: I0305873ca47534f53441247217881da59625e1f7
Related: OS#2407
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
This is preparation patch for transition to separate UL/DL window
variables instead of current shared generic window. The setting of
window parameters is performed in functions specific to UL/DL TBFs but
the general EGPRS flag remains the same and is set via the same function
which is now marked as protected since it's only meant to be used by
UL/DL subclasses.
Related: OS#1759
Change-Id: I6056194b28a1eb9d69093d1dfdc65a11bc1fc579
* 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
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
We do not use this style (#warning as an issue tracker replacement) in
any other Osmocom project. Also those warnings clutter compiler output
making it harder to spot warnings for the actual code.
Change-Id: I72070e2a027e60e8b80c12ccfa23ff075434689f
* 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
This function does not really belongs to BTS and it heavily relies on
direct access to TBF-DL members anyway.
Change-Id: I04584103018675a2f35cfb565473bfd81a208d7c
Closes: OS#1540
In case the counter group allocation fails, we must handle this
gracefully and fail the allocation of the parent object, too.
Change-Id: Id6d780c67b4af15aaa5c6f2b8b00f2a0b70a7385
Related: OS#2361
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
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
Add value_string describing UL and DL TBF states and use it for logging
errors while freeing TBFs.
Change-Id: I292ec81ab602c65ef86e6e3e85740182b63474b6
Adds spb counters at BTS level(show bts statistics).
Adds RLC/MAC downlink control msg at ms level(show ms imsi <imsi_val>).
Adds the number of coding schemes counter for UL at TBF level.
Change-Id: Icbe4ba95e34bea89ee36f532d099db68204b7c38
Adds DL throughput in show ms imsi <imsi_value>.
Adds the number of coding schemes counter and rlc nacked counter at TBf level.
Change-Id: Ia95b0404989b00db0e7ba416bc40d09ef41fde1c
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
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
gcc6 is optimizing if (!this) {CODE} as this is assumed to never be a
std::nullptr here. Move the null check to the caller. In preparation of
removing the check within llc_queue->size(), all callers must check the object
before calling it. Make sure of that: make the llc_queue() access function
protected and offer only a public llc_queue_size() function that incorporates
the NULL check. All current callers are only interested in the
llc_queue_size().
Tweaked-by: nhofmeyr
Change-Id: I88cc3180f8f86785e3f07981895dabddf50b60a2
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
A subsequent patch needs to call this from gprs_rlcmac_tbf::update(),
so to avoid code dup, put the calculation in a separate function.
Related: OS#1808
Change-Id: I7c7777d43f843bbd3421503fc2a8600f148ca035
* 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
All checks of (this == null) will be eliminated by GCC >= 6.1
(https://gcc.gnu.org/gcc-6/changes.html, Value range propagation now
assumes that the this pointer of C++ member functions is non-null.
Change-Id: Ifddaef70bb0a4402050c817b1000d515c3a7118b
Reviewed-on: https://gerrit.osmocom.org/136
Tested-by: Jenkins Builder
Reviewed-by: Harald Welte <laforge@gnumonks.org>
Reviewed-by: Holger Freyther <holger@freyther.de>
Currently the state on the TBF is set to ASSIGN when it is created
and in general changed to FLOW when it is acknowledged by the MS. The
moment when the assignment is really transmitted to the MS (which can
take some time) is not reflected by the state. A TBF can considered
to be valid, when the assignment is received by the MS.
Add the state WAIT_ASSIGN that is entered when the assigment has been
send to the MS (more precisely: when the corresponding RTS has been
processed or the message has been sent to the BTS).
The TBF, its PDCH(s), and its TFI can be assumed to be valid, when the
TBF has a state of WAIT_ASSIGN or higher (assuming that the TBF
starting time has not been set, which is currently only done for SBA,
which are not associated with a TBF).
Note that due to queuing in the BTS there can still be a invalid
time period for immediate assignments, when the request is lingering
in the AGCH or PCH queues.
Sponsored-by: On-Waves ehf
Currently the CCCH flag is cleared and the PACCH flag is set when a
multislot upgrade is scheduled for a downlink TBF, even if the MS has
never confirmed in any way that the PACCH really exists. This can
happen if the MS did not receive the DL IMM.ASS. Since the CCCH flags
gets cleared in that case, the IMM.ASSS is never retried and all
subsequent PACKET DOWNLINK ASSIGNMENTS will fail.
This commit delays the update of these flags until the MS has
responded with a corresponding CONTROL ACK.
Sponsored-by: On-Waves ehf
Currently the old TFI is always used as ID when a
PACKET DOWNLINK ASSIGNMENT is generated. This fails
if the old TBF has not been fully assigned yet. The
MS will then ignore the PDA.
This commit changes write_packet_downlink_assignment to accept
an additional parameter old_tfi_is_valid and uses the new TBF's
TLLI instead of the olf TFI if that parameter is set to false.
Sponsored-by: On-Waves ehf
Currently the checks for and the actual polling is done in several
places by copy & paste of several lines of code. This hinders changes
of they polling is handled internally and also is likely source of
programming mistakes.
Separate this into a check_polling function, that checks whether
polling is possible and returns the FN and the RRBP to be used in
that case. Otherwise the cause is logged (LOGL_DEBUG) and a negative
error value is returned. There are no other side effect beside the
logging.
If the call is successful, the set_polling method can be used to
actually register the polling.
Extend the encoder functions' parameters lists by an rrbp parameter.
Sponsored-by: On-Waves ehf
Currently tbf->control_ts is used to look up an incoming poll
response. Since that may eventually change, poll timeouts could
theoretically happen in that case.
Store the real poll TS in tbf->poll_ts at all places where
tbf->poll_fn is set. Do not use tbf->control_ts to look up
outstanding polls.
Sponsored-by: On-Waves ehf
Currently there are some places where tbf->control_ts != ts is
evaluated to check, whether ts is a control slot.
Replace these expressions by tbf->is_control_ts(ts) which does
the same whitout exposing internal fields.
Sponsored-by: On-Waves ehf
Currently the checks in that function are based on the different
internal TS values of a TBF. It is assumed that they match the TS
that the current RTS refers to.
This commit adds a TS parameter to create_ul_ass, create_dl_ass,
and create_ul_ack to make this more explicit.
Sponsored-by: On-Waves ehf
Currently existing TBF can be reused after an MS has sent a RACH
request. Since the MS can be or most probably is in packet idle mode
in that case, the TBF are no longer usable even if they share the
PDCHs and the control TS with the new one.
There are occasional freezes where the MS does no longer react to
messages sent on the PACCH.
This change aborts all pending TBFs if a new TBF is or has been
established via RACH.
Sponsored-by: On-Waves ehf
Currently the is a release() function which takes care of
statistics and shutdown of properly finished TBFs, but which
cannot be used for aborted TBFs.
This commit add an abort() method which handles unacked RLC blocks
as lost and doesn't start a release timer. This method will be
invoked by tbf_free() for downlink TBF.
Sponsored-by: On-Waves ehf
Currently the window size is fixed to 64 even for EGPRS.
Support dynamic window sizes depending on the number of PDCH. The
WS can be set to b + f * N_PDCH. If the result is not valid according
to TS 44.060, Table 9.1.9.2.1, the value will be corrected to use the
next lower valid value (or 64).
The following VTY commands are added (config-pcu node):
window-size <0-1024> set base (b) value and leave f unchanged
window-size <0-1024> <0-256> set base (b) and factor (f)
Sponsored-by: On-Waves ehf
If the downlink BSSGP didn't contain a RA Capabilities IE, both
MS class values are 0. The phone will send valid RA Caps later on.
Currently in that case, the downlink TBF is not established
if EGPRS is enabled.
Just force egprs_ms_class to 1 if EGPRS (only) is enabled.
Sponsored-by: On-Waves ehf
Currently the plain 'egprs' command enables EGPRS but doesn't prevent
phones from being served in GPRS mode if they do not support EGPRS.
This involves complex frame allocation implementations in dynamic
mode, especially if 8PSK is being used. This is due to the inability
of non-EGPRS phone to decode 8PSK USF and ES/P altogether. Since
polling has a higher priority than USF, collisions will have to be
prevented by the PCU by never using an GPRS USF if it refers to a FN
that is already being used for polling.
This commit just disables mixed usage by ignoring GPRS-only request
if EGPRS is enabled.
The following VTY command (config-pcu node) is changed:
egprs -> egprs only
Sponsored-by: On-Waves ehf
Currently GPRS is always used for downlink, which violates TS 44.060
(concurrent TBF must have the same mode).
Enable EGPRS mode for downlink if the EGPRS MS class is != 0 and
EGRPS has been enabled.
Note that EGPRS Ack/Nack handling is not yet implemented, so enabling
EGPRS will not work still. But we will now get EGPRS DL ACK/NACK
messages now from the MS.
Sponsored-by: On-Waves ehf
Add an use_egprs parameter to write_packet_downlink_assignment
and add the EGPRS related fields if it is set to true. The
window size is fixed at 64 blocks, link quality measurement
reports have been disabled, and the other optional fields are not
present.
Sponsored-by: On-Waves ehf
Currently the TBF and MS object use a plain integer value
(current_cs) to manage the coding scheme. This makes it difficult to
support the MCS schemes. GprsCodingScheme supports a partial ordering
of these values (CS and MCS) and provides safe increment and
decrement methods.
Use the GprsCodingScheme type instead of integer for cs fields and
variables. Add a 'mode' to GprsMs which can be set to either GPRS,
EGPRS, or EGPRS_GMSK which also set the initial values of
current_cs_ul/dl. Select the mode based on max_mcs_ul and max_mcs_dl.
Sponsored-by: On-Waves ehf
LListHead does basically the same like llist_pods, but more C++ish
and with type safety.
This commit turns the former list field of gprs_rlcmac_tbf into a
private field, provides accessors, moves the related code from
pcu_vty.c to pcu_vty_functions.cpp, and removes the llist_pods
type and related code.
Sponsored-by: On-Waves ehf
This function is similar to the show_ms function already present in
the target file. Since the TBF lists will be turned into LListHead
based lists, they will get an iteration function in
pcu_vty_functions.cpp, too.
Sponsored-by: On-Waves ehf
Currently casts from gprs_rlcmac_tbf to gprs_rlcmac_ul_tbf and
gprs_rlcmac_dl_tbf are done by using static_cast. This doesn't provide
protection against converting a gprs_rlcmac_ul_tbf pointer to a
gprs_rlcmac_dl_tbf pointer and vice versa.
This commit provides two functions as_ul_tbf and as_dl_tbf, that
behave similar like dynamic_cast but use the direction field instead
of RTTI.
Sponsored-by: On-Waves ehf
Currently the GPRS parameters are used, which is ok for the WS but
not for the SNS.
This commit uses RLC_EGPRS_SNS and RLC_EGPRS_MIN_WS for the window
configuration.
Sponsored-by: On-Waves ehf
Currently the EGPRS mode is enabled in setup_tbf depending on the
values of egprs_ms_class and bts->egprs_enabled (both must be != 0).
This makes it difficult to set different values (like window
parameters) depending on the direction.
This commit moved the initialisation part to tbf_alloc_ul_tbf und
just leaves the setting of the ms_class to setup_tbf.
Sponsored-by: On-Waves ehf
Currently the gprs_rlc_dl_window and gprs_rlc_ul_window do not have
constructors, but need to get initialized explicitly.
This commit adds constructors to both classes and removes explicit
external initialization code.
Sponsored-by: On-Waves ehf
Currently gprs_rlcmac_tbf::extract_tlli takes care of decoding and
the TBF update. These are really different things and doing the
decoding in extract_tlli makes EGPRS support more complex.
This commit moves the TBF state related part into a new method
gprs_rlcmac_tbf::set_tlli_from_ul.
Sponsored-by: On-Waves ehf
Enable the TBF to use EGPRS if the bts->egprs_enabled config variable
has been set via the VTY "egprs" command and if the MS has signaled a
EGPRS multislot class.
Tell the MS to use EGPRS if the condition above holds.
Note that this will cause the MS to use EGPRS RLC block formats for
further messages which are not yet understood by the PCU.
Sponsored-by: On-Waves ehf
Add the following methods to gprs_rlcmac_tbf:
- is_egprs_enabled
- enable_egprs
- disable_egprs
Also show the value of the flag in name() by displaying "EGPRS" if
it is set.
Sponsored-by: On-Waves ehf
Currently the Encoding::write_packet_uplink_assignment method only
supports the GPRS variant of the message.
This commit adds the missing EGPRS variant to the encoder.
Sponsored-by: On-Waves ehf
When a timeout has occured several times, the procedures handled by
poll_timeout are aborted. This happens when the number of repetitions
exceed N3105. Currently only the timeouts themselves are counted.
This commits adds counters that are incremented if a procedure has
really failed.
New counter:
- rlc.ass.failed: Count failing UL and DL assigments via PACCH
- rlc.ack.failed: Count failing DL Ack/Nack requests
Sponsored-by: On-Waves ehf
Pau Espin
Vadim Yanitskiy
Philipp Maier
Harald Welte
Neels Hofmeyr