Age | Commit message (Collapse) | Author | Files | Lines | |
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2013-12-25 | tbf: Kill the tsc member as it duplicates data | Holger Hans Peter Freyther | 1 | -0/+5 | |
We can just use first_ts and the trx/pdch to extract this information. Avoid duplication of data. | |||||
2013-12-25 | tbf: Fix typo and call it same | Holger Hans Peter Freyther | 1 | -1/+1 | |
2013-12-25 | alloc/tests: Create an allocation test for various scenarious | Holger Hans Peter Freyther | 1 | -5/+0 | |
The allocation in the TBF/BTS code is quite complex. In parts this is due the assignment and requests occuring under differen circumstances. Attempt to re-create the commono scenarios. Remove the bogus msclass check in gprs_rlcmac_tbf::update as the allocation code will check the ms class anyway. | |||||
2013-12-25 | llc: Calculate the average queuing delay of the LLC queues | Daniel Willmann | 1 | -1/+4 | |
Use a formula like it is used with TCP. This can help to make decisions about if frames should be dropped or not at the time we enqueue them. This code will store two timeval structs in fron the of the actual data and compute the average at the time of the dequeue. | |||||
2013-12-18 | llc: Count the number of frames queued inside the LLC queue | Holger Hans Peter Freyther | 1 | -2/+2 | |
2013-12-12 | decoding: Use 'I' and 'R' in rbb array for DL | Daniel Willmann | 1 | -1/+1 | |
We want to match up rbb decoding and encoding so it helps to use the same chars. | |||||
2013-12-04 | rlc: Make the RLC types only operate on the BSN | Holger Hans Peter Freyther | 1 | -25/+20 | |
The code has an internal optimization to only use window_size space. This means that the caller needed to know that only half of the size was used. Change the API to work on the BSN and do the mapping internally. The compiler should have plenty of opportunity to propagate the constant(s) but this has not been verified. | |||||
2013-12-04 | tbf: Separate the handling for rh->si and call in case of re-transmission | Holger Hans Peter Freyther | 1 | -8/+14 | |
In case of a retransmission ack the window again.. | |||||
2013-11-26 | tbf/sched: We pick the _last_ entry, rotate the lists | Holger Hans Peter Freyther | 1 | -0/+9 | |
We always pick the _last_ entry from the lists. Let's rotate so we make it a bit more fair. | |||||
2013-11-26 | tbf/rlc: Move raising of V(Q) into the ul window code | Holger Hans Peter Freyther | 1 | -11/+7 | |
2013-11-26 | rlc/tbf: Move the code to raise V(R) into the ul_window handling | Holger Hans Peter Freyther | 1 | -14/+3 | |
2013-11-26 | tbf/rlc: Move the putting of a block into the rlc code | Holger Hans Peter Freyther | 1 | -2/+1 | |
2013-11-26 | tbf: Move the extraction of the TLLI into a separate method | Holger Hans Peter Freyther | 1 | -38/+47 | |
2013-11-26 | tbf/rlc: Remove the side-effect from the loop. | Holger Hans Peter Freyther | 1 | -7/+8 | |
2013-11-26 | tbf: Reduce complexity and deal with only one way of assignment | Holger Hans Peter Freyther | 1 | -16/+4 | |
The normal mode of the PCU doesn't really work right now. There is no place to have certain kind of features that are not built and not unit-tested. | |||||
2013-11-26 | tbf/rlc: Move the check if something is in the window out. | Holger Hans Peter Freyther | 1 | -6/+3 | |
2013-11-26 | tbf/rlc: Move the v_n handling into a dedicated object | Holger Hans Peter Freyther | 1 | -5/+4 | |
2013-11-26 | tbf/rlc: Big change and move the window handling out to the rlc | Holger Hans Peter Freyther | 1 | -65/+53 | |
The send and receive window is now managed by an external object. There are some issues that can only be solved with C++11 but it is progres and removes some of the spaghetti code. For GPRS the sns and ws is hardcoded. Move that into the window code. | |||||
2013-11-26 | tbf: Update the legend and mention invalid as well | Holger Hans Peter Freyther | 1 | -1/+1 | |
We should not see it but the legend should be complete. | |||||
2013-11-26 | tbf/rlc: Move the counting of unacked frames into the RLC V_B class | Holger Hans Peter Freyther | 1 | -8/+4 | |
Whenwe receive a final ack we assume that all the unacked frames have been acked now. Move the counting to V_B and now the caller can remove the BSN and the "lost" variable which has always been zero. | |||||
2013-11-26 | tbf: Split the handling of DL ACK/NACK into two separate parts | Holger Hans Peter Freyther | 1 | -59/+67 | |
Split the handling of the final ack and the handling of frames that is moving frames. | |||||
2013-11-26 | tbf/rlc: Change the code and generate the entire state in the V_B | Holger Hans Peter Freyther | 1 | -8/+4 | |
2013-11-26 | tbf/rlc: Move the moving of V(A) into the V_B code | Holger Hans Peter Freyther | 1 | -8/+2 | |
Move the code that moves the V_B to the first not acked frame. Return how many indexes the V_B was moved and update the V_A in the caller. | |||||
2013-11-26 | tbf/rlc: Move the parsing of RBB to Decoding, move window marking out | Holger Hans Peter Freyther | 1 | -26/+8 | |
Move the parsing of the bitbmap out of the TBF code into Decoding. Move the updating of the V_B into the V_B class. Add some comments about handling the mod_sns, mod_sns_half parameters by using template code. | |||||
2013-11-26 | tbf: Fix the indention of this routine | Holger Hans Peter Freyther | 1 | -1/+1 | |
2013-11-26 | debug_diagram: Remove the special debug_diagram compilation mode | Holger Hans Peter Freyther | 1 | -64/+0 | |
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 | tbf: Simplify the create_dl_acked_block into two parts | Holger Hans Peter Freyther | 1 | -13/+21 | |
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 | tbf/rlc: Move the marking of frames for resend into the v_b | Holger Hans Peter Freyther | 1 | -12/+4 | |
2013-11-26 | tbf: Move the check if the window is stalled to a separate method | Holger Hans Peter Freyther | 1 | -2/+7 | |
2013-11-26 | rlc/tbf: Move the loop into the gprs_rlc_v_b class | Holger Hans Peter Freyther | 1 | -13/+12 | |
2013-11-24 | tbf: Count how often we re-start a BSN in the send routine | Holger Hans Peter Freyther | 1 | -2/+3 | |
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. | |||||
2013-11-23 | tbf: Always increase the tx_counter when we transmit a frame | Holger Hans Peter Freyther | 1 | -6/+4 | |
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 | tbf: Make the ws and sns number "private" (they should also be const) | Holger Hans Peter Freyther | 1 | -13/+13 | |
2013-11-23 | rlc: Move the ack state array into a separate class that can be tested | Holger Hans Peter Freyther | 1 | -17/+14 | |
2013-11-23 | rlc: Count nacked frames in the statistics too | Holger Hans Peter Freyther | 1 | -0/+1 | |
2013-11-19 | rlc: Start to move things out of the tbf into the rlc | Holger Hans Peter Freyther | 1 | -10/+13 | |
Add remarks of possible broken behavior inside the tbf routines. Move the preparation (and init) into the new rlc.cpp file. | |||||
2013-11-19 | tbf: The memory regions overlap so memmove should be used | Daniel Willmann | 1 | -2/+2 | |
2013-11-19 | rlc: Count the window stalls on the RLC level | Holger Hans Peter Freyther | 1 | -1/+3 | |
2013-11-13 | rlc: Pass the gprs_rlc_data to the assemble function for assembly | Holger Hans Peter Freyther | 1 | -3/+5 | |
2013-11-13 | rlc: Put a block and the length into a separate object | Holger Hans Peter Freyther | 1 | -9/+9 | |
This will ease passing things around. | |||||
2013-11-13 | rlc: Begin to move the rlc block handling into a separate object | Holger Hans Peter Freyther | 1 | -9/+9 | |
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 | rlc: Count the sent and resent RLC blocks | Holger Hans Peter Freyther | 1 | -0/+4 | |
2013-11-13 | tbf: Re-use the code that is re-using the tbf | Holger Hans Peter Freyther | 1 | -24/+25 | |
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 | llc: Move the decision if a frame has expired into the LLC | Holger Hans Peter Freyther | 1 | -4/+1 | |
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 | llc: Move some more secrets from the TBF into the LLC | Holger Hans Peter Freyther | 1 | -20/+20 | |
Introduce a method to append data to a TBF and then reset the read pointer when the frame has been sent. | |||||
2013-11-13 | bts: Count the number of llc frames that were "scheduled" to be sent | Holger Hans Peter Freyther | 1 | -1/+5 | |
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 | llc: Use timeradd and timercmp and fix for < 1s PDU llc timeouts | Holger Hans Peter Freyther | 1 | -4/+5 | |
2013-11-13 | llc: Move the timeout calculation into the TBF | Holger Hans Peter Freyther | 1 | -17/+1 | |
2013-11-13 | tbf: Count how often we re-use a TBF that was already being deactivated | Holger Hans Peter Freyther | 1 | -0/+1 | |
2013-11-13 | llc: Remove one of the two variants to put data into the frame | Holger Hans Peter Freyther | 1 | -2/+2 | |