rlc_um.c 34.3 KB
Newer Older
1
/*******************************************************************************
gauthier's avatar
gauthier committed
2
3
    OpenAirInterface
    Copyright(c) 1999 - 2014 Eurecom
4

gauthier's avatar
gauthier committed
5
6
7
8
    OpenAirInterface is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
9
10


gauthier's avatar
gauthier committed
11
12
13
14
    OpenAirInterface is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
15

gauthier's avatar
gauthier committed
16
17
    You should have received a copy of the GNU General Public License
    along with OpenAirInterface.The full GNU General Public License is
nikaeinn's avatar
nikaeinn committed
18
19
    included in this distribution in the file called "COPYING". If not,
    see <http://www.gnu.org/licenses/>.
20

gauthier's avatar
gauthier committed
21
22
23
  Contact Information
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
24
  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr
gauthier's avatar
gauthier committed
25

ghaddab's avatar
ghaddab committed
26
  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
gauthier's avatar
gauthier committed
27
28

 *******************************************************************************/
29
30
#define RLC_UM_MODULE 1
#define RLC_UM_C 1
31
32
33
34
35
//-----------------------------------------------------------------------------
//#include "rtos_header.h"
#include "platform_types.h"
#include "platform_constants.h"
//-----------------------------------------------------------------------------
36
#if ENABLE_ITTI
37
38
39
# include "intertask_interface.h"
#endif
#include "assertions.h"
knopp's avatar
mutexes    
knopp committed
40
#include "msc.h"
41
42
43
44
45
46
47
48
49
50
51
#include "rlc_um.h"
#include "list.h"
#include "rlc_primitives.h"
#include "mac_primitives.h"
#include "LAYER2/MAC/extern.h"
#include "UTIL/LOG/log.h"


#include "rlc_um_very_simple_test.h"

//-----------------------------------------------------------------------------
gauthier's avatar
gauthier committed
52
void rlc_um_stat_req     (rlc_um_entity_t *rlc_pP,
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
                          unsigned int* stat_tx_pdcp_sdu,
                          unsigned int* stat_tx_pdcp_bytes,
                          unsigned int* stat_tx_pdcp_sdu_discarded,
                          unsigned int* stat_tx_pdcp_bytes_discarded,
                          unsigned int* stat_tx_data_pdu,
                          unsigned int* stat_tx_data_bytes,
                          unsigned int* stat_rx_pdcp_sdu,
                          unsigned int* stat_rx_pdcp_bytes,
                          unsigned int* stat_rx_data_pdus_duplicate,
                          unsigned int* stat_rx_data_bytes_duplicate,
                          unsigned int* stat_rx_data_pdu,
                          unsigned int* stat_rx_data_bytes,
                          unsigned int* stat_rx_data_pdu_dropped,
                          unsigned int* stat_rx_data_bytes_dropped,
                          unsigned int* stat_rx_data_pdu_out_of_window,
                          unsigned int* stat_rx_data_bytes_out_of_window,
                          unsigned int* stat_timer_reordering_timed_out)
{
  *stat_tx_pdcp_sdu                     = rlc_pP->stat_tx_pdcp_sdu;
  *stat_tx_pdcp_bytes                   = rlc_pP->stat_tx_pdcp_bytes;
  *stat_tx_pdcp_sdu_discarded           = rlc_pP->stat_tx_pdcp_sdu_discarded;
  *stat_tx_pdcp_bytes_discarded         = rlc_pP->stat_tx_pdcp_bytes_discarded;
  *stat_tx_data_pdu                     = rlc_pP->stat_tx_data_pdu;
  *stat_tx_data_bytes                   = rlc_pP->stat_tx_data_bytes;
  *stat_rx_pdcp_sdu                     = rlc_pP->stat_rx_pdcp_sdu;
  *stat_rx_pdcp_bytes                   = rlc_pP->stat_rx_pdcp_bytes;
  *stat_rx_data_pdus_duplicate          = rlc_pP->stat_rx_data_pdus_duplicate;
  *stat_rx_data_bytes_duplicate         = rlc_pP->stat_rx_data_bytes_duplicate;
  *stat_rx_data_pdu                     = rlc_pP->stat_rx_data_pdu;
  *stat_rx_data_bytes                   = rlc_pP->stat_rx_data_bytes;
  *stat_rx_data_pdu_dropped             = rlc_pP->stat_rx_data_pdu_dropped;
  *stat_rx_data_bytes_dropped           = rlc_pP->stat_rx_data_bytes_dropped;
  *stat_rx_data_pdu_out_of_window       = rlc_pP->stat_rx_data_pdu_out_of_window;
  *stat_rx_data_bytes_out_of_window     = rlc_pP->stat_rx_data_bytes_out_of_window;
  *stat_timer_reordering_timed_out      = rlc_pP->stat_timer_reordering_timed_out;
88
89
}
//-----------------------------------------------------------------------------
gauthier's avatar
gauthier committed
90
uint32_t
gauthier's avatar
gauthier committed
91
rlc_um_get_buffer_occupancy (rlc_um_entity_t *rlc_pP)
92
{
93
94
95
96
97
  if (rlc_pP->buffer_occupancy > 0) {
    return rlc_pP->buffer_occupancy;
  } else {
    return 0;
  }
98
99
100
}
//-----------------------------------------------------------------------------
void
101
rlc_um_get_pdus (const protocol_ctxt_t* const ctxt_pP, void *argP)
102
{
gauthier's avatar
gauthier committed
103
  rlc_um_entity_t *rlc_p = (rlc_um_entity_t *) argP;
104

gauthier's avatar
gauthier committed
105
  switch (rlc_p->protocol_state) {
106

107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
  case RLC_NULL_STATE:
    // from 3GPP TS 25.322 V9.2.0 p43
    // In the NULL state the RLC entity does not exist and therefore it is
    // not possible to transfer any data through it.
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // establishment, the RLC entity:
    //   - is created; and
    //   - enters the DATA_TRANSFER_READY state.
    break;

  case RLC_DATA_TRANSFER_READY_STATE:

    // from 3GPP TS 25.322 V9.2.0 p43-44
    // In the DATA_TRANSFER_READY state, unacknowledged mode data can be
    // exchanged between the entities according to subclause 11.2.
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // release, the RLC entity:
    // -enters the NULL state; and
    // -is considered as being terminated.
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // modification, the RLC entity:
    // - stays in the DATA_TRANSFER_READY state;
    // - modifies only the protocol parameters and timers as indicated by
    // upper layers.
    // Upon reception of a CRLC-SUSPEND-Req from upper layers, the RLC
    // entity:
    // - enters the LOCAL_SUSPEND state.

    // SEND DATA TO MAC
    if (rlc_p->tx_sn_length == 10) {
      rlc_um_segment_10 (ctxt_pP, rlc_p);
    }

    if (rlc_p->tx_sn_length == 5) {
      rlc_um_segment_5 (ctxt_pP, rlc_p);
    }

    break;

  case RLC_LOCAL_SUSPEND_STATE:
    // from 3GPP TS 25.322 V9.2.0 p44
    // In the LOCAL_SUSPEND state, the RLC entity is suspended, i.e. it does
    // not send UMD PDUs with "Sequence Number" greater than or equal to a
    // certain specified value (see subclause 9.7.5).
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // release, the RLC entity:
    // - enters the NULL state; and
    // - is considered as being terminated.
    // Upon reception of a CRLC-RESUME-Req from upper layers, the RLC entity:
    // - enters the DATA_TRANSFER_READY state; and
    // - resumes the data transmission.
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // modification, the RLC entity:
    // - stays in the LOCAL_SUSPEND state;
    // - modifies only the protocol parameters and timers as indicated by
    //   upper layers.

    // TO DO TAKE CARE OF SN : THE IMPLEMENTATION OF THIS FUNCTIONNALITY IS NOT CRITICAL
    break;

  default:
168
169
    LOG_E(RLC, PROTOCOL_RLC_UM_CTXT_FMT" MAC_DATA_REQ UNKNOWN PROTOCOL STATE %02X hex\n",
          PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_p),
170
          rlc_p->protocol_state);
171
172
173
174
175
  }
}

//-----------------------------------------------------------------------------
void
176
rlc_um_rx (const protocol_ctxt_t* const ctxt_pP, void *argP, struct mac_data_ind data_indP)
177
{
178
  rlc_um_entity_t    *l_rlc_p = (rlc_um_entity_t *) argP;
179
#if TRACE_RLC_UM_PDU || MESSAGE_CHART_GENERATOR
180
  char  message_string[10000];
181
  mem_block_t        *tb_p;
gauthier's avatar
gauthier committed
182
  int16_t               tb_size_in_bytes;
183
  size_t              message_string_size = 0;
184
185
186
  rlc_um_pdu_info_t   pdu_info;
  int index;
#endif
187
#if TRACE_RLC_UM_PDU
188
  int                 octet_index;
189
#   if ENABLE_ITTI
190
191
192
  MessageDef         *msg_p;
#   endif
#endif
193

194
  switch (l_rlc_p->protocol_state) {
195

196
197
198
199
200
201
202
203
  case RLC_NULL_STATE:
    // from 3GPP TS 25.322 V9.2.0 p43
    // In the NULL state the RLC entity does not exist and therefore it is
    // not possible to transfer any data through it.
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // establishment, the RLC entity:
    //   - is created; and
    //   - enters the DATA_TRANSFER_READY state.
204
205
    LOG_N(RLC, PROTOCOL_RLC_UM_CTXT_FMT" ERROR MAC_DATA_IND IN RLC_NULL_STATE\n",
          PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,l_rlc_p));
206
#if MESSAGE_CHART_GENERATOR
207

208
209
    if (data_indP.data.nb_elements > 0) {
      tb_p = data_indP.data.head;
210

211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
      while (tb_p != NULL) {
        tb_size_in_bytes   = ((struct mac_tb_ind*) (tb_p->data))->size;
        rlc_um_get_pdu_infos(ctxt_pP,l_rlc_p,(rlc_um_pdu_sn_10_t*) ((struct mac_tb_ind*) (tb_p->data))->data_ptr, tb_size_in_bytes, &pdu_info, l_rlc_p->rx_sn_length);
        message_string_size = 0;
        message_string_size += sprintf(&message_string[message_string_size],
                                       MSC_AS_TIME_FMT" "PROTOCOL_RLC_UM_MSC_FMT"DATA SN %u size %u FI %u",
                                       MSC_AS_TIME_ARGS(ctxt_pP),
                                       PROTOCOL_RLC_UM_MSC_ARGS(ctxt_pP, l_rlc_p),
                                       pdu_info.sn,
                                       tb_size_in_bytes,
                                       pdu_info.fi);

        if (pdu_info.e) {
          message_string_size += sprintf(&message_string[message_string_size], "| HE:");

          for (index=0; index < pdu_info.num_li; index++) {
gauthier's avatar
gauthier committed
227
            message_string_size += sprintf(&message_string[message_string_size], " LI %u", pdu_info.li_list[index]);
228
        }
229
230
        }

gauthier's avatar
gauthier committed
231
        MSC_LOG_RX_DISCARDED_MESSAGE(
232
233
234
235
236
237
238
239
240
241
242
          (ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
          (ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_UE:MSC_RLC_ENB,
          (const char*)pdu_info.payload,
          tb_size_in_bytes,
          message_string);

        tb_p = tb_p->next;
      }
    }

#endif
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
    list_free (&data_indP.data);
    break;

  case RLC_DATA_TRANSFER_READY_STATE:
    // from 3GPP TS 25.322 V9.2.0 p43-44
    // In the DATA_TRANSFER_READY state, unacknowledged mode data can be
    // exchanged between the entities according to subclause 11.2.
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // release, the RLC entity:
    // -enters the NULL state; and
    // -is considered as being terminated.
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // modification, the RLC entity:
    // - stays in the DATA_TRANSFER_READY state;
    // - modifies only the protocol parameters and timers as indicated by
    // upper layers.
    // Upon reception of a CRLC-SUSPEND-Req from upper layers, the RLC
    // entity:
    // - enters the LOCAL_SUSPEND state.
    data_indP.tb_size = data_indP.tb_size >> 3;
263

264
#if TRACE_RLC_UM_PDU || MESSAGE_CHART_GENERATOR
265
266

    if (data_indP.data.nb_elements > 0) {
267
268
      LOG_D(RLC, PROTOCOL_RLC_UM_CTXT_FMT" MAC_DATA_IND %d TBs\n",
            PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,l_rlc_p),
269
270
271
272
273
274
            data_indP.data.nb_elements);

      tb_p = data_indP.data.head;

      while (tb_p != NULL) {
        tb_size_in_bytes   = ((struct mac_tb_ind *) (tb_p->data))->size;
275
276
277
278
279
280
        rlc_um_get_pdu_infos(ctxt_pP,
                             l_rlc_p,(rlc_um_pdu_sn_10_t*) ((struct mac_tb_ind*) (tb_p->data))->data_ptr,
                             tb_size_in_bytes,
                             &pdu_info,
                             l_rlc_p->rx_sn_length);

281
#if MESSAGE_CHART_GENERATOR
282
283
284
285
286
287
288
289
290
291
292
293
294
        message_string_size = 0;
        message_string_size += sprintf(&message_string[message_string_size],
                                       MSC_AS_TIME_FMT" "PROTOCOL_RLC_UM_MSC_FMT"DATA SN %u size %u FI %u",
                                       MSC_AS_TIME_ARGS(ctxt_pP),
                                       PROTOCOL_RLC_UM_MSC_ARGS(ctxt_pP, l_rlc_p),
                                       pdu_info.sn,
                                       tb_size_in_bytes,
                                       pdu_info.fi);

        if (pdu_info.e) {
          message_string_size += sprintf(&message_string[message_string_size], "| HE:");

          for (index=0; index < pdu_info.num_li; index++) {
gauthier's avatar
gauthier committed
295
            message_string_size += sprintf(&message_string[message_string_size], " LI  %u", pdu_info.li_list[index]);
296
297
298
          }
        }

gauthier's avatar
gauthier committed
299
        MSC_LOG_RX_MESSAGE(
300
301
302
303
304
          (ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
          (ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_UE:MSC_RLC_ENB,
          (char*)pdu_info.payload,
          tb_size_in_bytes,
          message_string);
305

306
#endif
307
#if TRACE_RLC_UM_PDU
308
        message_string_size = 0;
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
        message_string_size += sprintf(&message_string[message_string_size], "Bearer      : %u\n", l_rlc_p->rb_id);
        message_string_size += sprintf(&message_string[message_string_size], "PDU size    : %u\n", tb_size_in_bytes);
        message_string_size += sprintf(&message_string[message_string_size], "Header size : %u\n", pdu_info.header_size);
        message_string_size += sprintf(&message_string[message_string_size], "Payload size: %u\n", pdu_info.payload_size);
        message_string_size += sprintf(&message_string[message_string_size], "PDU type    : RLC UM DATA IND: UMD PDU\n\n");

        message_string_size += sprintf(&message_string[message_string_size], "Header      :\n");
        message_string_size += sprintf(&message_string[message_string_size], "  FI        : %u\n", pdu_info.fi);
        message_string_size += sprintf(&message_string[message_string_size], "  E         : %u\n", pdu_info.e);
        message_string_size += sprintf(&message_string[message_string_size], "  SN        : %u\n", pdu_info.sn);

        if (pdu_info.e) {
          message_string_size += sprintf(&message_string[message_string_size], "\nHeader extension  : \n");

          for (index=0; index < pdu_info.num_li; index++) {
            message_string_size += sprintf(&message_string[message_string_size], "  LI        : %u\n", pdu_info.li_list[index]);
          }
        }

        message_string_size += sprintf(&message_string[message_string_size], "\nPayload  : \n");
        message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n");
        message_string_size += sprintf(&message_string[message_string_size], "      |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |\n");
        message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n");

        for (octet_index = 0; octet_index < pdu_info.payload_size; octet_index++) {
          if ((octet_index % 16) == 0) {
            if (octet_index != 0) {
              message_string_size += sprintf(&message_string[message_string_size], " |\n");
            }

            message_string_size += sprintf(&message_string[message_string_size], " %04d |", octet_index);
          }

          /*
           * Print every single octet in hexadecimal form
           */
          message_string_size += sprintf(&message_string[message_string_size], " %02x", pdu_info.payload[octet_index]);
          /*
           * Align newline and pipes according to the octets in groups of 2
           */
        }

        /*
         * Append enough spaces and put final pipe
         */
        for (index = octet_index; index < 16; ++index) {
          message_string_size += sprintf(&message_string[message_string_size], "   ");
        }

        message_string_size += sprintf(&message_string[message_string_size], " |\n");
359

360
#   if ENABLE_ITTI
361
362
363
364
        msg_p = itti_alloc_new_message_sized (ctxt_pP->enb_flag ? TASK_RLC_ENB:TASK_RLC_UE , RLC_UM_DATA_PDU_IND, message_string_size + sizeof (IttiMsgText));
        msg_p->ittiMsg.rlc_um_data_pdu_ind.size = message_string_size;
        memcpy(&msg_p->ittiMsg.rlc_um_data_pdu_ind.text, message_string, message_string_size);

365
        itti_send_msg_to_task(TASK_UNKNOWN, ctxt_pP->instance, msg_p);
366

367
# else
368
        LOG_T(RLC, "%s", message_string);
369
370
# endif // ENABLE_ITTI
#endif // TRACE_RLC_UM_PDU
371

372
373
374
375
        tb_p = tb_p->next;
      }
    }

376
#endif
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
    rlc_um_receive (ctxt_pP, l_rlc_p, data_indP);
    break;

  case RLC_LOCAL_SUSPEND_STATE:
    // from 3GPP TS 25.322 V9.2.0 p44
    // In the LOCAL_SUSPEND state, the RLC entity is suspended, i.e. it does
    // not send UMD PDUs with "Sequence Number" greater than or equal to a
    // certain specified value (see subclause 9.7.5).
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // release, the RLC entity:
    // - enters the NULL state; and
    // - is considered as being terminated.
    // Upon reception of a CRLC-RESUME-Req from upper layers, the RLC entity:
    // - enters the DATA_TRANSFER_READY state; and
    // - resumes the data transmission.
    // Upon reception of a CRLC-CONFIG-Req from upper layer indicating
    // modification, the RLC entity:
    // - stays in the LOCAL_SUSPEND state;
    // - modifies only the protocol parameters and timers as indicated by
    //   upper layers.
397
398
    LOG_N(RLC, PROTOCOL_RLC_UM_CTXT_FMT" RLC_LOCAL_SUSPEND_STATE\n",
          PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,l_rlc_p));
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
    /*if (data_indP.data.nb_elements > 0) {
        LOG_D(RLC, "[FRAME %05d][%s][RLC_UM][MOD %02u/%02u][RB %02d] MAC_DATA_IND %d TBs\n", l_rlc_p->module_id, l_rlc_p->rb_id, ctxt_pP->frame, data_indP.data.nb_elements);
        rlc_p[l_rlc_p->module_id].m_mscgen_trace_length = sprintf(rlc_p[l_rlc_p->module_id].m_mscgen_trace, "[MSC_MSG][FRAME %05d][MAC_%s][MOD %02d][][--- MAC_DATA_IND/ %d TB(s) ",
            ctxt_pP->frame,
            (ctxt_pP->enb_flag) ? "eNB":"UE",
            l_rlc_p->module_id,
            data_indP.data.nb_elements);

        tb = data_indP.data.head;
        while (tb != NULL) {
            rlc_p[l_rlc_p->module_id].m_mscgen_trace_length += sprintf(&rlc_p[l_rlc_p->module_id].m_mscgen_trace[rlc_p[l_rlc_p->module_id].m_mscgen_trace_length], " SN %d %c%c%c %d Bytes ",
                                                                (((struct mac_tb_ind *) (tb->data))->data_ptr[1]) +  (((uint16_t)((((struct mac_tb_ind *) (tb->data))->data_ptr[0]) & 0x03)) << 8),
                                                                (((struct mac_tb_ind *) (tb->data))->data_ptr[0] & 0x10) ?  '}':'{',
                                                                (((struct mac_tb_ind *) (tb->data))->data_ptr[0] & 0x08) ?  '{':'}',
                                                                (((struct mac_tb_ind *) (tb->data))->data_ptr[0] & 0x04) ?  'E':'_',
                                                                ((struct mac_tb_ind *) (tb->data))->size);
            tb = tb->next;
        }
        rlc_p[l_rlc_p->module_id].m_mscgen_trace_length += sprintf(&rlc_p[l_rlc_p->module_id].m_mscgen_trace[rlc_p[l_rlc_p->module_id].m_mscgen_trace_length], " DROPPED RLC LOCAL SUSPEND STATE ---X][RLC_UM][MOD %02d][RB %02d]\n",
            l_rlc_p->module_id,
            l_rlc_p->rb_id);

        rlc_p[l_rlc_p->module_id].m_mscgen_trace[rlc_p[l_rlc_p->module_id].m_mscgen_trace_length] = 0;
        LOG_D(RLC, "%s", rlc_p[l_rlc_p->module_id].m_mscgen_trace);
    }*/
    list_free (&data_indP.data);
    break;

  default:
428
429
    LOG_E(RLC, PROTOCOL_RLC_UM_CTXT_FMT" TX UNKNOWN PROTOCOL STATE %02X hex\n",
          PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,l_rlc_p),
430
          l_rlc_p->protocol_state);
431
432
433
434
435
  }
}

//-----------------------------------------------------------------------------
struct mac_status_resp
436
rlc_um_mac_status_indication (const protocol_ctxt_t* const ctxt_pP, void *rlc_pP, uint16_t tbs_sizeP, struct mac_status_ind tx_statusP)
437
438
{
  struct mac_status_resp status_resp;
gauthier's avatar
gauthier committed
439
440
441
  uint16_t  sdu_size = 0;
  uint16_t  sdu_remaining_size = 0;
  int32_t diff_time=0;
gauthier's avatar
gauthier committed
442
  rlc_um_entity_t   *rlc_p = NULL;
443
  mem_block_t       *mb_p = NULL;
444

445
446
447
448
449
  status_resp.buffer_occupancy_in_pdus         = 0;
  status_resp.buffer_occupancy_in_bytes        = 0;
  status_resp.head_sdu_remaining_size_to_send  = 0;
  status_resp.head_sdu_creation_time           = 0;
  status_resp.head_sdu_is_segmented            = 0;
450

gauthier's avatar
gauthier committed
451
  if (rlc_pP) {
452

453
    rlc_p = (rlc_um_entity_t *) rlc_pP;
454
    status_resp.rlc_info.rlc_protocol_state      = rlc_p->protocol_state;
455
    rlc_um_check_timer_dar_time_out(ctxt_pP, rlc_p);
456

457
    rlc_p->nb_bytes_requested_by_mac = tbs_sizeP;
458

459
    status_resp.buffer_occupancy_in_bytes = rlc_um_get_buffer_occupancy (rlc_p);
460

461
    if ((status_resp.buffer_occupancy_in_bytes > 0) && ((mb_p = list_get_head(&rlc_p->input_sdus)) != NULL)) {
462

463
464
      status_resp.buffer_occupancy_in_bytes += rlc_p->tx_header_min_length_in_bytes;
      status_resp.buffer_occupancy_in_pdus = rlc_p->input_sdus.nb_elements;
465

466
467
468
      diff_time =   ctxt_pP->frame - ((struct rlc_um_tx_sdu_management *)mb_p->data)->sdu_creation_time;
      status_resp.head_sdu_creation_time = (diff_time > 0 ) ? (uint32_t) diff_time :  (uint32_t)(0xffffffff - diff_time + ctxt_pP->frame) ;
      //msg("rlc_p status for ctxt_pP->frame %d diff time %d resp %d\n", ctxt_pP->frame, diff_time,status_resp.head_sdu_creation_time) ;
469

470
471
472
473
      sdu_size            = ((struct rlc_um_tx_sdu_management *) mb_p->data)->sdu_size;
      sdu_remaining_size  = ((struct rlc_um_tx_sdu_management *) mb_p->data)->sdu_remaining_size;

      status_resp.head_sdu_remaining_size_to_send = sdu_remaining_size;
474

475
476
      if (sdu_size == sdu_remaining_size)  {
        status_resp.head_sdu_is_segmented = 0;
477
      } else {
478
        status_resp.head_sdu_is_segmented = 1;
479
      }
480
481
482
483
484
485
486

    } else {
    }

    //msg("[FRAME %05d][%s][RLC_UM][MOD %02u/%02u][RB %02d] MAC_STATUS_INDICATION BO = %d\n", ((rlc_um_entity_t *) rlc_pP)->module_id, ((rlc_um_entity_t *) rlc_pP)->rb_id, status_resp.buffer_occupancy_in_bytes);

    status_resp.rlc_info.rlc_protocol_state = ((rlc_um_entity_t *) rlc_pP)->protocol_state;
487
#if TRACE_RLC_UM_TX_STATUS
488
489

    if ((((rlc_um_entity_t *) rlc_pP)->rb_id > 0) && (status_resp.buffer_occupancy_in_bytes > 0)) {
490
491
      LOG_D(RLC, PROTOCOL_RLC_UM_CTXT_FMT" MAC_STATUS_INDICATION (DATA) %d bytes requested -> %d bytes available\n",
            PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_pP),
492
493
494
495
            tbs_sizeP,
            status_resp.buffer_occupancy_in_bytes);

      if ((tx_statusP.tx_status == MAC_TX_STATUS_SUCCESSFUL) && (tx_statusP.no_pdu)) {
496
497
        LOG_D(RLC, PROTOCOL_RLC_UM_CTXT_FMT" MAC_STATUS_INDICATION  TX STATUS   SUCCESSFUL %d PDUs\n",
              PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_pP),
498
              tx_statusP.no_pdu);
499
      }
500
501

      if ((tx_statusP.tx_status == MAC_TX_STATUS_UNSUCCESSFUL) && (tx_statusP.no_pdu)) {
502
503
        LOG_D(RLC, PROTOCOL_RLC_UM_CTXT_FMT" MAC_STATUS_INDICATION  TX STATUS UNSUCCESSFUL %d PDUs\n",
              PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_pP),
504
505
506
507
508
              tx_statusP.no_pdu);
      }
    }

#endif
509
  } else {
510
    LOG_E(RLC, "[RLC] rlc_um_mac_status_indication RLC NULL!!!\n");
511
  }
512

513
514
515
516
517
  return status_resp;
}

//-----------------------------------------------------------------------------
struct mac_data_req
518
rlc_um_mac_data_request (const protocol_ctxt_t* const ctxt_pP, void *rlc_pP)
519
{
520
521
522
  struct mac_data_req data_req;
  int16_t               tb_size_in_bytes;
  mem_block_t        *tb_p;
523
#if TRACE_RLC_UM_PDU || MESSAGE_CHART_GENERATOR
524
  char  message_string[10000];
525
  size_t              message_string_size = 0;
526
#   if ENABLE_ITTI
527
  MessageDef         *msg_p;
528
#   endif
529
530
  rlc_um_pdu_info_t   pdu_info;
  int                 octet_index, index;
531
#endif
532
  rlc_um_entity_t *l_rlc_p = (rlc_um_entity_t *) rlc_pP;
533

534
  rlc_um_get_pdus(ctxt_pP, l_rlc_p);
535

536
537
  list_init (&data_req.data, NULL);
  list_add_list (&l_rlc_p->pdus_to_mac_layer, &data_req.data);
538
539


540
541
542
543
544
545
546
547
548
549
550
551
552
553
  data_req.buffer_occupancy_in_bytes = rlc_um_get_buffer_occupancy (l_rlc_p);

  if (data_req.buffer_occupancy_in_bytes > 0) {
    data_req.buffer_occupancy_in_bytes += l_rlc_p->tx_header_min_length_in_bytes;
  }

  data_req.rlc_info.rlc_protocol_state = l_rlc_p->protocol_state;

  if (data_req.data.nb_elements > 0) {
    tb_p = data_req.data.head;

    while (tb_p != NULL) {
      tb_size_in_bytes   = ((struct mac_tb_req *) (tb_p->data))->tb_size;

554
555
      LOG_D(RLC, PROTOCOL_RLC_UM_CTXT_FMT" MAC_DATA_REQUEST  TB SIZE %u\n",
            PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,l_rlc_p),
556
557
558
559
560
            ((struct mac_tb_req *) (tb_p->data))->tb_size);
      l_rlc_p->stat_tx_data_pdu   += 1;
      l_rlc_p->stat_tx_data_bytes += tb_size_in_bytes;

      AssertFatal( tb_size_in_bytes > 0 , "RLC UM PDU LENGTH %d", tb_size_in_bytes);
561
#if TRACE_RLC_UM_PDU || MESSAGE_CHART_GENERATOR
562
563
      rlc_um_get_pdu_infos(ctxt_pP, l_rlc_p,(rlc_um_pdu_sn_10_t*) ((struct mac_tb_req*) (tb_p->data))->data_ptr, tb_size_in_bytes, &pdu_info, l_rlc_p->rx_sn_length);
#endif
564
#if MESSAGE_CHART_GENERATOR
565
566
567
568
569
570
571
572
      message_string_size = 0;
      message_string_size += sprintf(&message_string[message_string_size],
                                     MSC_AS_TIME_FMT" "PROTOCOL_RLC_UM_MSC_FMT" DATA SN %u size %u FI %u",
                                     MSC_AS_TIME_ARGS(ctxt_pP),
                                     PROTOCOL_RLC_UM_MSC_ARGS(ctxt_pP, l_rlc_p),
                                     pdu_info.sn,
                                     tb_size_in_bytes,
                                     pdu_info.fi);
573

574
575
576
577
      if (pdu_info.e) {
        message_string_size += sprintf(&message_string[message_string_size], "|HE:");

        for (index=0; index < pdu_info.num_li; index++) {
gauthier's avatar
gauthier committed
578
          message_string_size += sprintf(&message_string[message_string_size], " LI %u", pdu_info.li_list[index]);
579
580
581
        }
      }

gauthier's avatar
gauthier committed
582
      MSC_LOG_TX_MESSAGE(
583
584
585
586
587
588
589
        (ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
        (ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_UE:MSC_RLC_ENB,
        (const char*)pdu_info.payload,
        pdu_info.payload_size,
        message_string);

#endif
590
#if TRACE_RLC_UM_PDU
591
      message_string_size = 0;
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
      message_string_size += sprintf(&message_string[message_string_size], "Bearer      : %u\n", l_rlc_p->rb_id);
      message_string_size += sprintf(&message_string[message_string_size], "PDU size    : %u\n", tb_size_in_bytes);
      message_string_size += sprintf(&message_string[message_string_size], "Header size : %u\n", pdu_info.header_size);
      message_string_size += sprintf(&message_string[message_string_size], "Payload size: %u\n", pdu_info.payload_size);
      message_string_size += sprintf(&message_string[message_string_size], "PDU type    : RLC UM DATA IND: UMD PDU\n\n");

      message_string_size += sprintf(&message_string[message_string_size], "Header      :\n");
      message_string_size += sprintf(&message_string[message_string_size], "  FI        : %u\n", pdu_info.fi);
      message_string_size += sprintf(&message_string[message_string_size], "  E         : %u\n", pdu_info.e);
      message_string_size += sprintf(&message_string[message_string_size], "  SN        : %u\n", pdu_info.sn);

      if (pdu_info.e) {
        message_string_size += sprintf(&message_string[message_string_size], "\nHeader extension  : \n");

        for (index=0; index < pdu_info.num_li; index++) {
          message_string_size += sprintf(&message_string[message_string_size], "  LI        : %u\n", pdu_info.li_list[index]);
        }
      }

      message_string_size += sprintf(&message_string[message_string_size], "\nPayload  : \n");
      message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n");
      message_string_size += sprintf(&message_string[message_string_size], "      |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |\n");
      message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n");

      for (octet_index = 0; octet_index < pdu_info.payload_size; octet_index++) {
        if ((octet_index % 16) == 0) {
          if (octet_index != 0) {
619
            message_string_size += sprintf(&message_string[message_string_size], " |\n");
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
          }

          message_string_size += sprintf(&message_string[message_string_size], " %04d |", octet_index);
        }

        /*
         * Print every single octet in hexadecimal form
         */
        message_string_size += sprintf(&message_string[message_string_size], " %02x", pdu_info.payload[octet_index]);
        /*
         * Align newline and pipes according to the octets in groups of 2
         */
      }

      /*
       * Append enough spaces and put final pipe
       */
      for (index = octet_index; index < 16; ++index) {
        message_string_size += sprintf(&message_string[message_string_size], "   ");
      }

      message_string_size += sprintf(&message_string[message_string_size], " |\n");
642

643
#   if ENABLE_ITTI
644
645
646
647
      msg_p = itti_alloc_new_message_sized (ctxt_pP->enb_flag > 0 ? TASK_RLC_ENB:TASK_RLC_UE , RLC_UM_DATA_PDU_REQ, message_string_size + sizeof (IttiMsgText));
      msg_p->ittiMsg.rlc_um_data_pdu_req.size = message_string_size;
      memcpy(&msg_p->ittiMsg.rlc_um_data_pdu_req.text, message_string, message_string_size);

648
      itti_send_msg_to_task(TASK_UNKNOWN, ctxt_pP->instance, msg_p);
649

650
# else
651
      LOG_T(RLC, "%s", message_string);
652
653
# endif
#endif
654
      tb_p = tb_p->next;
655
    }
656
657
658
  }

  return data_req;
659
660
661
662
}

//-----------------------------------------------------------------------------
void
663
rlc_um_mac_data_indication (const protocol_ctxt_t* const ctxt_pP, void *rlc_pP, struct mac_data_ind data_indP)
664
{
665
666
  rlc_um_rx (ctxt_pP, rlc_pP, data_indP);
  rlc_um_check_timer_dar_time_out(ctxt_pP, rlc_pP);
667
668
669
670
}

//-----------------------------------------------------------------------------
void
671
rlc_um_data_req (const protocol_ctxt_t* const ctxt_pP, void *rlc_pP, mem_block_t *sdu_pP)
672
{
gauthier's avatar
gauthier committed
673
  rlc_um_entity_t *rlc_p = (rlc_um_entity_t *) rlc_pP;
674

675
#if ! USER_MODE
676
677
678
  unsigned long int rlc_um_time_us;
  int min, sec, usec;
#endif
679
680
#if TRACE_RLC_UM_PDU
#if ENABLE_ITTI
gauthier's avatar
gauthier committed
681
  MessageDef          *msg_p;
682
#   endif
gauthier's avatar
gauthier committed
683
684
  uint16_t             data_offset;
  uint16_t             data_size;
685
686
687
  size_t               message_string_size = 0;
  int                  octet_index, index;
  char                 message_string[7000];
gauthier's avatar
gauthier committed
688
#endif
689

690
691
  LOG_D(RLC, PROTOCOL_RLC_UM_CTXT_FMT" RLC_UM_DATA_REQ size %d Bytes, BO %d , NB SDU %d\n",
        PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_p),
692
693
694
        ((struct rlc_um_data_req *) (sdu_pP->data))->data_size,
        rlc_p->buffer_occupancy,
        rlc_p->input_sdus.nb_elements);
695
696

  /*rlc_util_print_hex_octets(
697
698
      RLC,
      (uint8_t*)&sdu_pP->data[sizeof (struct rlc_um_data_req_alloc)],
699
      ((struct rlc_um_data_req *) (sdu_pP->data))->data_size);*/
700

701
702
703
704
705
706
707
708
709
710
711
712
  // IMPORTANT : do not change order of affectations
  ((struct rlc_um_tx_sdu_management *) (sdu_pP->data))->sdu_size = ((struct rlc_um_data_req *) (sdu_pP->data))->data_size;
  //rlc_p->nb_sdu += 1;
  ((struct rlc_um_tx_sdu_management *) (sdu_pP->data))->first_byte = (uint8_t*)&sdu_pP->data[sizeof (struct rlc_um_data_req_alloc)];
  ((struct rlc_um_tx_sdu_management *) (sdu_pP->data))->sdu_remaining_size = ((struct rlc_um_tx_sdu_management *)
      (sdu_pP->data))->sdu_size;
  ((struct rlc_um_tx_sdu_management *) (sdu_pP->data))->sdu_segmented_size = 0;
  ((struct rlc_um_tx_sdu_management *) (sdu_pP->data))->sdu_creation_time = ctxt_pP->frame;
  //rlc_p->next_sdu_index = (rlc_p->next_sdu_index + 1) % rlc_p->size_input_sdus_buffer;

  rlc_p->stat_tx_pdcp_sdu   += 1;
  rlc_p->stat_tx_pdcp_bytes += ((struct rlc_um_tx_sdu_management *) (sdu_pP->data))->sdu_size;
gauthier's avatar
gauthier committed
713
714

  MSC_LOG_RX_MESSAGE(
715
716
    (ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,
    (ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_PDCP_ENB:MSC_PDCP_UE,
gauthier's avatar
gauthier committed
717
718
    NULL,
    0,
719
720
721
722
    MSC_AS_TIME_FMT" "PROTOCOL_RLC_UM_MSC_FMT" DATA-REQ size %u",
    MSC_AS_TIME_ARGS(ctxt_pP),
    PROTOCOL_RLC_UM_MSC_ARGS(ctxt_pP, rlc_p),
    ((struct rlc_um_tx_sdu_management*) (sdu_pP->data))->sdu_size);
gauthier's avatar
gauthier committed
723
724


725
#   if TRACE_RLC_UM_PDU
726
727
728
729
730
731
732
733
734
735
736
737
738
739
  data_offset = sizeof (struct rlc_um_data_req_alloc);
  data_size   = ((struct rlc_um_tx_sdu_management *)(sdu_pP->data))->sdu_size;
  message_string_size += sprintf(&message_string[message_string_size], "Bearer      : %u\n", rlc_p->rb_id);
  message_string_size += sprintf(&message_string[message_string_size], "SDU size    : %u\n", data_size);

  message_string_size += sprintf(&message_string[message_string_size], "\nPayload  : \n");
  message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n");
  message_string_size += sprintf(&message_string[message_string_size], "      |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |\n");
  message_string_size += sprintf(&message_string[message_string_size], "------+-------------------------------------------------|\n");

  for (octet_index = 0; octet_index < data_size; octet_index++) {
    if ((octet_index % 16) == 0) {
      if (octet_index != 0) {
        message_string_size += sprintf(&message_string[message_string_size], " |\n");
gauthier's avatar
gauthier committed
740
      }
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761

      message_string_size += sprintf(&message_string[message_string_size], " %04d |", octet_index);
    }

    /*
     * Print every single octet in hexadecimal form
     */
    message_string_size += sprintf(&message_string[message_string_size], " %02x", (uint8_t*)(&sdu_pP->data[data_offset])[octet_index]);
    /*
     * Align newline and pipes according to the octets in groups of 2
     */
  }

  /*
   * Append enough spaces and put final pipe
   */
  for (index = octet_index; index < 16; ++index) {
    message_string_size += sprintf(&message_string[message_string_size], "   ");
  }

  message_string_size += sprintf(&message_string[message_string_size], " |\n");
gauthier's avatar
gauthier committed
762

763
#   if ENABLE_ITTI
764
765
766
  msg_p = itti_alloc_new_message_sized (ctxt_pP->enb_flag > 0 ? TASK_RLC_ENB:TASK_RLC_UE , RLC_UM_SDU_REQ, message_string_size + sizeof (IttiMsgText));
  msg_p->ittiMsg.rlc_um_sdu_req.size = message_string_size;
  memcpy(&msg_p->ittiMsg.rlc_um_sdu_req.text, message_string, message_string_size);
gauthier's avatar
gauthier committed
767

768
  itti_send_msg_to_task(TASK_UNKNOWN, ctxt_pP->instance, msg_p);
769
770
771
772

#else
  LOG_T(RLC, "%s", message_string);
#endif
gauthier's avatar
gauthier committed
773
#   endif
knopp's avatar
mutexes    
knopp committed
774
  RLC_UM_MUTEX_LOCK(&rlc_p->lock_input_sdus, ctxt_pP, rlc_p);
775
776
  rlc_p->buffer_occupancy += ((struct rlc_um_tx_sdu_management *) (sdu_pP->data))->sdu_size;
  list_add_tail_eurecom(sdu_pP, &rlc_p->input_sdus);
knopp's avatar
mutexes    
knopp committed
777
  RLC_UM_MUTEX_UNLOCK(&rlc_p->lock_input_sdus);
778
779
780
781
782
783
784
785
786
787
788
789
790
791
#if DEBUG_RLC_CONGESTION
#if MESSAGE_CHART_GENERATOR
  if (rlc_p->buffer_occupancy > 4096) {
      MSC_LOG_EVENT((ctxt_pP->enb_flag == ENB_FLAG_YES) ? MSC_RLC_ENB:MSC_RLC_UE,\
                             "0 "PROTOCOL_RLC_AM_MSC_FMT" BO %u bytes",\
                             PROTOCOL_RLC_AM_MSC_ARGS(ctxt_pP,rlc_pP), rlc_p->buffer_occupancy);
  }
#else
  LOG_W(RLC, PROTOCOL_RLC_UM_CTXT_FMT" BO %d , NB SDU %d\n",
        PROTOCOL_RLC_UM_CTXT_ARGS(ctxt_pP,rlc_p),
        rlc_p->buffer_occupancy,
        rlc_p->input_sdus.nb_elements);
#endif
#endif
792
}