Commit Graph

2440 Commits

Author SHA1 Message Date
Holger Hans Peter Freyther 9eb8ace260 tbf: Fix the indention of this routine 2013-11-26 20:57:24 +01:00
Holger Hans Peter Freyther 12c039cdb2 debug_diagram: Remove the special debug_diagram compilation mode
This approach is somehow flawed. We need/want to debug problems on
systems with real traffic and re-compiling it with debug_diagram
is not an option. All internal logging needs to be expressive enough
so we can understand what is going on (e.g. create a script to
post-process the output).
2013-11-26 20:57:24 +01:00
Holger Hans Peter Freyther a6ba67cb3a tbf: Simplify the create_dl_acked_block into two parts
Separate the resend from creating a new block. It shows that the
first_fin_ack is always set to FALSE for re-sending. This might
not be what we want.
2013-11-26 20:57:24 +01:00
Holger Hans Peter Freyther 8b16ae30fe tbf/rlc: Move the marking of frames for resend into the v_b 2013-11-26 20:57:24 +01:00
Holger Hans Peter Freyther c03e38291a tbf: Move the check if the window is stalled to a separate method 2013-11-26 20:57:24 +01:00
Holger Hans Peter Freyther 1577779526 rlc/tbf: Move the loop into the gprs_rlc_v_b class 2013-11-26 20:57:19 +01:00
Holger Hans Peter Freyther ef93bdb19b tbf: Count how often we re-start a BSN in the send routine
There appears to be a scheduling issue. Even without any NACKs
we are re-transmitting a lot of frames. It might be because of
this.
2013-11-24 00:01:50 +01:00
Holger Hans Peter Freyther 64b49bc3ce tbf: Always increase the tx_counter when we transmit a frame
In case the ACK could not be scheduled we were not increasing the
tx_counter. Change the code flow to always increase the tx_counter
after we have created a frame.
2013-11-23 23:16:07 +01:00
Holger Hans Peter Freyther 40fc8f9e46 sched: Make internal methods static 2013-11-23 23:03:14 +01:00
Holger Hans Peter Freyther b18aedcc50 tbf: Make the ws and sns number "private" (they should also be const) 2013-11-23 16:27:50 +01:00
Holger Hans Peter Freyther 9525567d77 rlc: Create a basic test that mark/is is talking about the same 2013-11-23 16:19:17 +01:00
Holger Hans Peter Freyther 6b5660c19f rlc: Move the rlc headers into a separate header file 2013-11-23 16:19:17 +01:00
Holger Hans Peter Freyther 321f3c3104 rlc: Move the ack state array into a separate class that can be tested 2013-11-23 16:19:17 +01:00
Holger Hans Peter Freyther 092478f294 rlc: Count nacked frames in the statistics too 2013-11-23 01:01:19 +01:00
Holger Hans Peter Freyther 5a7f636ce4 llc: FIx a typo in the message 2013-11-21 21:59:32 +01:00
Holger Hans Peter Freyther c6382ddd6e rlc: Add a simple test for the RLC data structure for the init 2013-11-21 21:42:20 +01:00
Holger Hans Peter Freyther 6058220d2a types: Add a simple testcase for basic types and fix the LLC code
* Make append_data, remaining_space and fits_in_current.. work
  on m_length and not the index. This ways things can't overflow.
* The current API consumer was moving the m_index so it should have
  worked okay.
2013-11-21 21:30:23 +01:00
Holger Hans Peter Freyther 58db60c68e rlc: Start to move things out of the tbf into the rlc
Add remarks of possible broken behavior inside the tbf
routines. Move the preparation (and init) into the new
rlc.cpp file.
2013-11-19 21:26:43 +01:00
Daniel Willmann c3d5325fc8 tbf: The memory regions overlap so memmove should be used 2013-11-19 21:26:43 +01:00
Holger Hans Peter Freyther c70aae4697 rlc: Count the window stalls on the RLC level 2013-11-19 17:09:37 +01:00
Holger Hans Peter Freyther 937e2a6919 meas: Add a warning for flow control handling here 2013-11-19 17:01:49 +01:00
Holger Hans Peter Freyther e5dc2a0ac5 rlc: Pass the gprs_rlc_data to the assemble function for assembly 2013-11-13 20:17:06 +01:00
Holger Hans Peter Freyther 796270bf83 rlc: Put a block and the length into a separate object
This will ease passing things around.
2013-11-13 20:05:00 +01:00
Holger Hans Peter Freyther 9241fd0957 rlc: Begin to move the rlc block handling into a separate object
The secret of gprs_rlc will be the manipulation of the blocks for
the current window. We might add the window handling in this class
as well.
2013-11-13 19:51:55 +01:00
Holger Hans Peter Freyther e9429b5d3e rlc: Count the sent and resent RLC blocks 2013-11-13 19:36:57 +01:00
Holger Hans Peter Freyther 55cf994c29 tbf: Re-use the code that is re-using the tbf
Address the fixme and re-use the code. Fix the counting in the
final ack case and provide a log message in the other case. Prefix
it with the tbf name
2013-11-13 18:15:45 +01:00
Holger Hans Peter Freyther b1302b083e llc: Move the decision if a frame has expired into the LLC
This way the generation of the expiry information and the check
is at the same place. This should make reading the code more easy.
2013-11-13 17:16:28 +01:00
Holger Hans Peter Freyther 32f9a59ab4 llc: Make the index 'private' by appending a m_ to it.
At some point in the future we can start using the private/protected
keywords in this struct.
2013-11-13 17:14:42 +01:00
Holger Hans Peter Freyther e23102602c llc: Move some more secrets from the TBF into the LLC
Introduce a method to append data to a TBF and then reset the
read pointer when the frame has been sent.
2013-11-13 17:08:07 +01:00
Holger Hans Peter Freyther b3d5ee2934 bts: Count the number of llc frames that were "scheduled" to be sent
This does not mean that they have been successfully transferred
to the SGSN/MS but at least that they have reached a certain point
in the message flow.
2013-11-13 16:43:26 +01:00
Holger Hans Peter Freyther 51e093bd1c llc: Use timeradd and timercmp and fix for < 1s PDU llc timeouts 2013-11-13 15:35:45 +01:00
Holger Hans Peter Freyther 985fd114f2 llc: Change the flow. Exit early for the special case and initialize the tv 2013-11-13 15:19:39 +01:00
Holger Hans Peter Freyther fce431cf3a llc: Move the timeout calculation into the TBF 2013-11-13 15:17:12 +01:00
Holger Hans Peter Freyther aa35ba7584 tbf: Count how often we re-use a TBF that was already being deactivated 2013-11-13 15:02:50 +01:00
Holger Hans Peter Freyther 857281f7ff llc: Remove one of the two variants to put data into the frame 2013-11-13 14:58:19 +01:00
Holger Hans Peter Freyther d26318e4a7 misc: Fix coverity warning about indention
So we had one intended line inside the if for "SMS VALUE" and
at the same time one line with "SMS VALUE" at the same indention.
Assume it is copy and paste and remove the line. Currently we
are only parsing the ms_class so this change should not have any
semantic change.

Fixes: Coverity CID 1058761
2013-11-11 20:28:29 +01:00
Holger Hans Peter Freyther 4e8b50cd8d misc: Fix a potential leak on config parsing
Fixes: Coverity CID 1040949
2013-11-11 20:12:30 +01:00
Holger Hans Peter Freyther 0e0f2f5faf pcu: Address the return without value
Fixes: Coverity CID 1040959
2013-11-11 20:10:04 +01:00
Holger Hans Peter Freyther a6e47c7f54 llc: Add another warning for me to take a look 2013-11-11 20:08:35 +01:00
Holger Hans Peter Freyther 5697b4ccfa tbf: Make sure that tfi is signed so we can make a < 0 check
For the failure check we need this variable to be < 0.

Fixes: Coverity CID 1107941
2013-11-11 16:22:39 +01:00
Holger Hans Peter Freyther acb5427bda llc: Move all direct accesses to the frame into the llc structure
Add some todo items where we could add assertions now that I see
the constraints and invariants of this code.
2013-11-07 08:15:58 +01:00
Holger Hans Peter Freyther be57081721 llc: Move the llc structure to a new header file 2013-11-07 08:02:10 +01:00
Holger Hans Peter Freyther b7840466ce tbf: Split create_dl_acked_block into two methods
The method was more than 300 hundred lines of code. Split the
selection of the index and the creation of the dl_msg.
2013-11-07 07:50:26 +01:00
Holger Hans Peter Freyther a1da251c10 tbf: Move the tbf_handle and tbf_append_data into the class 2013-11-07 07:32:51 +01:00
Holger Hans Peter Freyther 096f6f9f39 llc: Move the llc code out of the tbf.cpp into a new dedicated one 2013-11-07 07:21:06 +01:00
Holger Hans Peter Freyther 758dc12c9f llc: First routines moved from the TBF into the LLC 2013-11-07 07:16:21 +01:00
Holger Hans Peter Freyther 28e5378b55 llc: Begin creating a LLC class and move counts into it.
Begin to move state of the LLC into a separate object. This will
allow to make side-effects more clear and kill some code duplication.
2013-11-06 20:23:56 +01:00
Holger Hans Peter Freyther 9948514086 tbf: Move the tx part into the tbf as it accesses internal data 2013-11-06 20:15:11 +01:00
Holger Hans Peter Freyther 77e05971b4 tbf: Move the llc handling into the tbf (from the bts)
This will be moved to a LLC class in the future but after this
we can make the sns/ws private now and have little to update
outside the tbf.
2013-11-06 19:16:43 +01:00
Holger Hans Peter Freyther bc1626e5de tbf: Update the timing advance for the new tlli based on the old one 2013-10-30 21:24:13 +01:00