Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 1 | /* Copied from gprs_bssgp_pcu.cpp |
| 2 | * |
| 3 | * Copyright (C) 2012 Ivan Klyuchnikov |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 4 | * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 5 | * Copyright (C) 2013 by Holger Hans Peter Freyther |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 20 | */ |
| 21 | |
Holger Hans Peter Freyther | 67ed34e | 2013-10-17 17:01:54 +0200 | [diff] [blame] | 22 | #include <bts.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 23 | #include <tbf.h> |
Holger Hans Peter Freyther | d11290b | 2013-10-26 17:32:04 +0200 | [diff] [blame] | 24 | #include <rlc.h> |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 25 | #include <encoding.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 26 | #include <gprs_rlcmac.h> |
| 27 | #include <gprs_debug.h> |
Holger Hans Peter Freyther | 3dc56a3 | 2013-10-26 21:38:30 +0200 | [diff] [blame] | 28 | #include <gprs_bssgp_pcu.h> |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 29 | #include <gprs_ms.h> |
Holger Hans Peter Freyther | 77e0597 | 2013-11-06 19:16:43 +0100 | [diff] [blame] | 30 | #include <decoding.h> |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 31 | #include <pcu_utils.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 32 | |
| 33 | extern "C" { |
| 34 | #include <osmocom/core/msgb.h> |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 35 | #include <osmocom/core/talloc.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 36 | } |
| 37 | |
| 38 | #include <errno.h> |
| 39 | #include <string.h> |
| 40 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 41 | extern void *tall_pcu_ctx; |
| 42 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 43 | static void tbf_timer_cb(void *_tbf); |
| 44 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 45 | gprs_rlcmac_tbf::Meas::Meas() : |
| 46 | rssi_sum(0), |
| 47 | rssi_num(0) |
| 48 | { |
| 49 | timerclear(&rssi_tv); |
| 50 | } |
| 51 | |
| 52 | gprs_rlcmac_tbf::gprs_rlcmac_tbf(BTS *bts_, gprs_rlcmac_tbf_direction dir) : |
| 53 | state_flags(0), |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 54 | direction(dir), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 55 | trx(NULL), |
| 56 | first_ts(0), |
| 57 | first_common_ts(0), |
| 58 | control_ts(0xff), |
| 59 | dl_ass_state(GPRS_RLCMAC_DL_ASS_NONE), |
| 60 | ul_ass_state(GPRS_RLCMAC_UL_ASS_NONE), |
| 61 | ul_ack_state(GPRS_RLCMAC_UL_ACK_NONE), |
| 62 | poll_state(GPRS_RLCMAC_POLL_NONE), |
| 63 | poll_fn(0), |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 64 | poll_ts(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 65 | n3105(0), |
| 66 | T(0), |
| 67 | num_T_exp(0), |
| 68 | fT(0), |
| 69 | num_fT_exp(0), |
| 70 | state(GPRS_RLCMAC_NULL), |
| 71 | was_releasing(0), |
| 72 | upgrade_to_multislot(0), |
| 73 | bts(bts_), |
| 74 | m_tfi(0), |
| 75 | m_created_ts(0), |
| 76 | m_ms(NULL), |
Max | 9bbe160 | 2016-07-18 12:50:18 +0200 | [diff] [blame] | 77 | m_ta(GSM48_TA_INVALID), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 78 | m_ms_class(0), |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 79 | m_list(this), |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 80 | m_ms_list(this), |
| 81 | m_egprs_enabled(false) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 82 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 83 | /* The classes of these members do not have proper constructors yet. |
| 84 | * Just set them to 0 like talloc_zero did */ |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 85 | memset(&pdch, 0, sizeof(pdch)); |
| 86 | memset(&timer, 0, sizeof(timer)); |
| 87 | memset(&m_rlc, 0, sizeof(m_rlc)); |
| 88 | memset(&gsm_timer, 0, sizeof(gsm_timer)); |
| 89 | |
| 90 | m_llc.init(); |
| 91 | |
| 92 | m_name_buf[0] = '\0'; |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 93 | } |
| 94 | |
Daniel Willmann | ca102af | 2014-08-08 12:14:12 +0200 | [diff] [blame] | 95 | gprs_rlcmac_bts *gprs_rlcmac_tbf::bts_data() const |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 96 | { |
| 97 | return bts->bts_data(); |
| 98 | } |
| 99 | |
Jacob Erlbeck | 8759735 | 2015-05-18 11:56:50 +0200 | [diff] [blame] | 100 | uint32_t gprs_rlcmac_tbf::tlli() const |
| 101 | { |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 102 | return m_ms ? m_ms->tlli() : 0; |
Jacob Erlbeck | 8759735 | 2015-05-18 11:56:50 +0200 | [diff] [blame] | 103 | } |
| 104 | |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 105 | const char *gprs_rlcmac_tbf::imsi() const |
Holger Hans Peter Freyther | d868928 | 2013-08-24 20:51:06 +0200 | [diff] [blame] | 106 | { |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 107 | static const char nullc = 0; |
| 108 | return m_ms ? m_ms->imsi() : &nullc; |
| 109 | } |
| 110 | |
| 111 | void gprs_rlcmac_tbf::assign_imsi(const char *imsi_) |
| 112 | { |
| 113 | GprsMs *old_ms; |
| 114 | |
| 115 | if (!imsi_ || !m_ms) { |
| 116 | LOGP(DRLCMAC, LOGL_ERROR, |
| 117 | "%s failed to assign IMSI: missing IMSI or MS object\n", |
| 118 | name()); |
| 119 | return; |
| 120 | } |
| 121 | |
| 122 | if (strcmp(imsi_, imsi()) == 0) |
| 123 | return; |
| 124 | |
| 125 | /* really change the IMSI */ |
| 126 | |
| 127 | old_ms = bts->ms_store().get_ms(0, 0, imsi_); |
| 128 | if (old_ms) { |
| 129 | /* We cannot find m_ms by IMSI since we know that it has a |
| 130 | * different IMSI */ |
| 131 | OSMO_ASSERT(old_ms != m_ms); |
| 132 | |
| 133 | LOGP(DRLCMAC, LOGL_INFO, |
| 134 | "%s the IMSI '%s' was already assigned to another " |
| 135 | "MS object: TLLI = 0x%08x, that IMSI will be removed\n", |
| 136 | name(), imsi_, old_ms->tlli()); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 137 | |
| 138 | merge_and_clear_ms(old_ms); |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | m_ms->set_imsi(imsi_); |
Holger Hans Peter Freyther | d868928 | 2013-08-24 20:51:06 +0200 | [diff] [blame] | 142 | } |
| 143 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 144 | uint8_t gprs_rlcmac_tbf::ta() const |
| 145 | { |
| 146 | return m_ms ? m_ms->ta() : m_ta; |
| 147 | } |
| 148 | |
| 149 | void gprs_rlcmac_tbf::set_ta(uint8_t ta) |
| 150 | { |
| 151 | if (ms()) |
| 152 | ms()->set_ta(ta); |
| 153 | |
Max | 9bbe160 | 2016-07-18 12:50:18 +0200 | [diff] [blame] | 154 | if (gsm48_ta_is_valid(ta)) |
| 155 | m_ta = ta; |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 156 | } |
| 157 | |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 158 | uint8_t gprs_rlcmac_tbf::ms_class() const |
| 159 | { |
| 160 | return m_ms ? m_ms->ms_class() : m_ms_class; |
| 161 | } |
| 162 | |
| 163 | void gprs_rlcmac_tbf::set_ms_class(uint8_t ms_class_) |
| 164 | { |
| 165 | if (ms()) |
| 166 | ms()->set_ms_class(ms_class_); |
| 167 | |
| 168 | m_ms_class = ms_class_; |
| 169 | } |
| 170 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 171 | GprsCodingScheme gprs_rlcmac_tbf::current_cs() const |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 172 | { |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 173 | GprsCodingScheme cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 174 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 175 | cs = m_ms ? m_ms->current_cs_ul() : GprsCodingScheme(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 176 | else |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 177 | cs = m_ms ? m_ms->current_cs_dl() : GprsCodingScheme(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 178 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 179 | return cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 180 | } |
| 181 | |
Jacob Erlbeck | 489a2b3 | 2015-05-28 19:07:01 +0200 | [diff] [blame] | 182 | gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() |
| 183 | { |
| 184 | return m_ms ? m_ms->llc_queue() : NULL; |
| 185 | } |
| 186 | |
| 187 | const gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() const |
| 188 | { |
| 189 | return m_ms ? m_ms->llc_queue() : NULL; |
| 190 | } |
| 191 | |
Alexander Couzens | d38b92e | 2016-08-21 19:38:30 +0200 | [diff] [blame] | 192 | int gprs_rlcmac_tbf::llc_queue_size() const |
| 193 | { |
| 194 | /* m_ms->llc_queue() never returns NULL: GprsMs::m_llc_queue is a |
| 195 | * member instance. */ |
| 196 | return m_ms ? m_ms->llc_queue()->size() : 0; |
| 197 | } |
| 198 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 199 | void gprs_rlcmac_tbf::set_ms(GprsMs *ms) |
| 200 | { |
| 201 | if (m_ms == ms) |
| 202 | return; |
| 203 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 204 | if (m_ms) { |
| 205 | /* Save the TA locally. This will also be called, if the MS |
| 206 | * object detaches itself from the TBF, for instance if |
| 207 | * attach_tbf() is called */ |
| 208 | m_ta = m_ms->ta(); |
| 209 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 210 | m_ms->detach_tbf(this); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 211 | } |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 212 | |
| 213 | m_ms = ms; |
| 214 | |
| 215 | if (m_ms) |
| 216 | m_ms->attach_tbf(this); |
| 217 | } |
| 218 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 219 | void gprs_rlcmac_tbf::merge_and_clear_ms(GprsMs *old_ms) |
| 220 | { |
| 221 | if (old_ms == ms()) |
| 222 | return; |
| 223 | |
| 224 | GprsMs::Guard guard_old(old_ms); |
| 225 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 226 | /* Clean up the old MS object */ |
| 227 | /* TODO: Use timer? */ |
| 228 | if (old_ms->ul_tbf() && old_ms->ul_tbf()->T == 0) { |
| 229 | if (old_ms->ul_tbf() == this) { |
| 230 | LOGP(DRLCMAC, LOGL_ERROR, |
| 231 | "%s is referred by the old MS " |
| 232 | "and will not be deleted\n", |
| 233 | name()); |
| 234 | set_ms(NULL); |
| 235 | } else { |
| 236 | tbf_free(old_ms->ul_tbf()); |
| 237 | } |
| 238 | } |
| 239 | if (old_ms->dl_tbf() && old_ms->dl_tbf()->T == 0) { |
| 240 | if (old_ms->dl_tbf() == this) { |
| 241 | LOGP(DRLCMAC, LOGL_ERROR, |
| 242 | "%s is referred by the old MS " |
| 243 | "and will not be deleted\n", |
| 244 | name()); |
| 245 | set_ms(NULL); |
| 246 | } else { |
| 247 | tbf_free(old_ms->dl_tbf()); |
| 248 | } |
| 249 | } |
| 250 | |
Jacob Erlbeck | 2b349b5 | 2015-08-18 11:55:03 +0200 | [diff] [blame] | 251 | ms()->merge_old_ms(old_ms); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 252 | } |
| 253 | |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 254 | void gprs_rlcmac_tbf::update_ms(uint32_t tlli, enum gprs_rlcmac_tbf_direction dir) |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 255 | { |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 256 | if (!ms()) |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 257 | return; |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 258 | |
| 259 | if (!tlli) |
| 260 | return; |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 261 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 262 | /* TODO: When the TLLI does not match the ms, check if there is another |
| 263 | * MS object that belongs to that TLLI and if yes make sure one of them |
| 264 | * gets deleted. This is the same problem that can arise with |
| 265 | * assign_imsi() so there should be a unified solution */ |
| 266 | if (!ms()->check_tlli(tlli)) { |
| 267 | GprsMs *old_ms; |
| 268 | |
| 269 | old_ms = bts->ms_store().get_ms(tlli, 0, NULL); |
| 270 | if (old_ms) |
| 271 | merge_and_clear_ms(old_ms); |
| 272 | } |
| 273 | |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 274 | if (dir == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 275 | ms()->set_tlli(tlli); |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 276 | else |
| 277 | ms()->confirm_tlli(tlli); |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 278 | } |
| 279 | |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 280 | gprs_rlcmac_ul_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 281 | int8_t use_trx, uint8_t ms_class, uint8_t egprs_ms_class, |
Jacob Erlbeck | e2e004e | 2015-06-18 17:16:26 +0200 | [diff] [blame] | 282 | uint32_t tlli, uint8_t ta, GprsMs *ms) |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 283 | { |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 284 | struct gprs_rlcmac_ul_tbf *tbf; |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 285 | |
| 286 | #warning "Copy and paste with tbf_new_dl_assignment" |
Holger Hans Peter Freyther | ba26368 | 2013-12-25 19:15:57 +0100 | [diff] [blame] | 287 | /* create new TBF, use same TRX as DL TBF */ |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 288 | /* use multislot class of downlink TBF */ |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 289 | tbf = tbf_alloc_ul_tbf(bts, ms, use_trx, ms_class, egprs_ms_class, 0); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 290 | if (!tbf) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 291 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 292 | /* FIXME: send reject */ |
| 293 | return NULL; |
| 294 | } |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 295 | tbf->m_contention_resolution_done = 1; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 296 | tbf->set_state(GPRS_RLCMAC_ASSIGN); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 297 | tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH); |
| 298 | tbf_timer_start(tbf, 3169, bts->t3169, 0); |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 299 | tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 300 | OSMO_ASSERT(tbf->ms()); |
| 301 | |
| 302 | tbf->ms()->set_ta(ta); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 303 | |
| 304 | return tbf; |
| 305 | } |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 306 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 307 | static void tbf_unlink_pdch(struct gprs_rlcmac_tbf *tbf) |
| 308 | { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 309 | int ts; |
| 310 | |
Jacob Erlbeck | ccc34e4 | 2015-06-29 13:45:05 +0200 | [diff] [blame] | 311 | for (ts = 0; ts < 8; ts++) { |
| 312 | if (!tbf->pdch[ts]) |
| 313 | continue; |
| 314 | |
| 315 | tbf->pdch[ts]->detach_tbf(tbf); |
| 316 | tbf->pdch[ts] = NULL; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 317 | } |
| 318 | } |
| 319 | |
| 320 | void tbf_free(struct gprs_rlcmac_tbf *tbf) |
| 321 | { |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 322 | /* update counters */ |
| 323 | if (tbf->direction == GPRS_RLCMAC_UL_TBF) { |
| 324 | tbf->bts->tbf_ul_freed(); |
| 325 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 326 | tbf->bts->tbf_ul_aborted(); |
| 327 | } else { |
| 328 | tbf->bts->tbf_dl_freed(); |
| 329 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 330 | tbf->bts->tbf_dl_aborted(); |
| 331 | } |
| 332 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 333 | /* Give final measurement report */ |
| 334 | gprs_rlcmac_rssi_rep(tbf); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 335 | if (tbf->direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 336 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
Jacob Erlbeck | f04a5b3 | 2016-01-21 20:42:40 +0100 | [diff] [blame] | 337 | |
| 338 | dl_tbf->abort(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 339 | dl_tbf->cleanup(); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 340 | } |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 341 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 342 | LOGP(DRLCMAC, LOGL_INFO, "%s free\n", tbf_name(tbf)); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 343 | if (tbf->ul_ass_state != GPRS_RLCMAC_UL_ASS_NONE) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 344 | LOGP(DRLCMAC, LOGL_ERROR, "%s Software error: Pending uplink " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 345 | "assignment. This may not happen, because the " |
| 346 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 347 | "be sure not to free in this state. PLEASE FIX!\n", |
| 348 | tbf_name(tbf)); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 349 | if (tbf->dl_ass_state != GPRS_RLCMAC_DL_ASS_NONE) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 350 | LOGP(DRLCMAC, LOGL_ERROR, "%s Software error: Pending downlink " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 351 | "assignment. This may not happen, because the " |
| 352 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 353 | "be sure not to free in this state. PLEASE FIX!\n", |
| 354 | tbf_name(tbf)); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 355 | tbf->stop_timer(); |
Holger Hans Peter Freyther | 782f6dd | 2013-10-26 18:31:51 +0200 | [diff] [blame] | 356 | #warning "TODO: Could/Should generate bssgp_tx_llc_discarded" |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 357 | tbf_unlink_pdch(tbf); |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 358 | llist_del(&tbf->list()); |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 359 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 360 | if (tbf->ms()) |
| 361 | tbf->set_ms(NULL); |
| 362 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 363 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF ends here **********\n"); |
| 364 | talloc_free(tbf); |
| 365 | } |
| 366 | |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 367 | int gprs_rlcmac_tbf::update() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 368 | { |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 369 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 370 | int rc; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 371 | |
| 372 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF update **********\n"); |
| 373 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 374 | if (direction != GPRS_RLCMAC_DL_TBF) |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 375 | return -EINVAL; |
| 376 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 377 | tbf_unlink_pdch(this); |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 378 | rc = bts_data->alloc_algorithm(bts_data, ms(), this, |
| 379 | bts_data->alloc_algorithm_curst, 0, -1); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 380 | /* if no resource */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 381 | if (rc < 0) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 382 | LOGP(DRLCMAC, LOGL_ERROR, "No resource after update???\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 383 | return -rc; |
| 384 | } |
| 385 | |
Aravind Sirsikar | 0ee31cf | 2016-09-15 17:54:46 +0530 | [diff] [blame] | 386 | if (is_egprs_enabled()) { |
| 387 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
| 388 | if (dl_tbf) |
| 389 | dl_tbf->egprs_calc_window_size(); |
| 390 | } |
| 391 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 392 | return 0; |
| 393 | } |
| 394 | |
| 395 | int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf) |
| 396 | { |
| 397 | if (tbf->control_ts == 0xff) |
| 398 | LOGP(DRLCMAC, LOGL_INFO, "- Setting Control TS %d\n", |
| 399 | tbf->first_common_ts); |
| 400 | else if (tbf->control_ts != tbf->first_common_ts) |
| 401 | LOGP(DRLCMAC, LOGL_INFO, "- Changing Control TS %d\n", |
| 402 | tbf->first_common_ts); |
| 403 | tbf->control_ts = tbf->first_common_ts; |
| 404 | |
| 405 | return 0; |
| 406 | } |
| 407 | |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 408 | const char *gprs_rlcmac_tbf::tbf_state_name[] = { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 409 | "NULL", |
| 410 | "ASSIGN", |
| 411 | "FLOW", |
| 412 | "FINISHED", |
| 413 | "WAIT RELEASE", |
| 414 | "RELEASING", |
| 415 | }; |
| 416 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 417 | void tbf_timer_start(struct gprs_rlcmac_tbf *tbf, unsigned int T, |
| 418 | unsigned int seconds, unsigned int microseconds) |
| 419 | { |
| 420 | if (!osmo_timer_pending(&tbf->timer)) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 421 | LOGP(DRLCMAC, LOGL_DEBUG, "%s starting timer %u.\n", |
| 422 | tbf_name(tbf), T); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 423 | else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 424 | LOGP(DRLCMAC, LOGL_DEBUG, "%s restarting timer %u " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 425 | "while old timer %u pending \n", |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 426 | tbf_name(tbf), T, tbf->T); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 427 | |
| 428 | tbf->T = T; |
| 429 | tbf->num_T_exp = 0; |
| 430 | |
| 431 | /* Tunning timers can be safely re-scheduled. */ |
| 432 | tbf->timer.data = tbf; |
| 433 | tbf->timer.cb = &tbf_timer_cb; |
| 434 | |
| 435 | osmo_timer_schedule(&tbf->timer, seconds, microseconds); |
| 436 | } |
| 437 | |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 438 | void gprs_rlcmac_tbf::stop_t3191() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 439 | { |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 440 | return stop_timer(); |
| 441 | } |
| 442 | |
| 443 | void gprs_rlcmac_tbf::stop_timer() |
| 444 | { |
| 445 | if (osmo_timer_pending(&timer)) { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 446 | LOGP(DRLCMAC, LOGL_DEBUG, "%s stopping timer %u.\n", |
| 447 | tbf_name(this), T); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 448 | osmo_timer_del(&timer); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 449 | } |
| 450 | } |
| 451 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 452 | int gprs_rlcmac_tbf::check_polling(uint32_t fn, uint8_t ts, |
| 453 | uint32_t *poll_fn_, unsigned int *rrbp_) |
| 454 | { |
| 455 | uint32_t fn_offs = 13; |
| 456 | uint32_t new_poll_fn = (fn + fn_offs) % 2715648; |
| 457 | |
| 458 | if (!is_control_ts(ts)) { |
| 459 | LOGP(DRLCMAC, LOGL_DEBUG, "Polling cannot be " |
| 460 | "scheduled in this TS %d (first control TS %d)\n", |
| 461 | ts, control_ts); |
| 462 | return -EINVAL; |
| 463 | } |
| 464 | if (poll_state != GPRS_RLCMAC_POLL_NONE) { |
| 465 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 466 | "Polling is already scheduled for %s\n", |
| 467 | name()); |
| 468 | return -EBUSY; |
| 469 | } |
| 470 | if (bts->sba()->find(trx->trx_no, ts, (fn + 13) % 2715648)) { |
| 471 | LOGP(DRLCMAC, LOGL_DEBUG, "%s: Polling is already scheduled " |
| 472 | "for single block allocation at FN %d TS %d ...\n", |
| 473 | name(), new_poll_fn, ts); |
| 474 | return -EBUSY; |
| 475 | } |
| 476 | |
| 477 | *poll_fn_ = new_poll_fn; |
| 478 | *rrbp_ = 0; |
| 479 | |
| 480 | return 0; |
| 481 | } |
| 482 | |
| 483 | void gprs_rlcmac_tbf::set_polling(uint32_t new_poll_fn, uint8_t ts) |
| 484 | { |
| 485 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 486 | "%s: Scheduling polling at FN %d TS %d\n", |
| 487 | name(), new_poll_fn, ts); |
| 488 | |
| 489 | /* schedule polling */ |
| 490 | poll_state = GPRS_RLCMAC_POLL_SCHED; |
| 491 | poll_fn = new_poll_fn; |
| 492 | poll_ts = ts; |
| 493 | } |
| 494 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 495 | void gprs_rlcmac_tbf::poll_timeout() |
| 496 | { |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 497 | LOGP(DRLCMAC, LOGL_NOTICE, "%s poll timeout for FN=%d, TS=%d (curr FN %d)\n", |
| 498 | tbf_name(this), poll_fn, poll_ts, bts->current_frame_number()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 499 | |
| 500 | poll_state = GPRS_RLCMAC_POLL_NONE; |
| 501 | |
| 502 | if (ul_ack_state == GPRS_RLCMAC_UL_ACK_WAIT_ACK) { |
| 503 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_UL_ACK))) { |
| 504 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 505 | "PACKET CONTROL ACK for PACKET UPLINK ACK\n"); |
| 506 | rlcmac_diag(); |
| 507 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_UL_ACK); |
| 508 | } |
| 509 | ul_ack_state = GPRS_RLCMAC_UL_ACK_NONE; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 510 | bts->rlc_ack_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 511 | if (state_is(GPRS_RLCMAC_FINISHED)) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 512 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 513 | ul_tbf->m_n3103++; |
| 514 | if (ul_tbf->m_n3103 == ul_tbf->bts->bts_data()->n3103) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 515 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 516 | "- N3103 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 517 | ul_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 518 | tbf_timer_start(ul_tbf, 3169, ul_tbf->bts->bts_data()->t3169, 0); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 519 | return; |
| 520 | } |
| 521 | /* reschedule UL ack */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 522 | ul_tbf->ul_ack_state = GPRS_RLCMAC_UL_ACK_SEND_ACK; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 523 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 524 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 525 | } else if (ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
| 526 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS))) { |
| 527 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 528 | "PACKET CONTROL ACK for PACKET UPLINK " |
| 529 | "ASSIGNMENT.\n"); |
| 530 | rlcmac_diag(); |
| 531 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS); |
| 532 | } |
| 533 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 534 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 535 | bts->rlc_ass_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 536 | if (n3105 == bts_data()->n3105) { |
| 537 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 538 | set_state(GPRS_RLCMAC_RELEASING); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 539 | tbf_timer_start(this, 3195, bts_data()->t3195, 0); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 540 | bts->rlc_ass_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 541 | return; |
| 542 | } |
| 543 | /* reschedule UL assignment */ |
| 544 | ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS; |
| 545 | } else if (dl_ass_state == GPRS_RLCMAC_DL_ASS_WAIT_ACK) { |
| 546 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS))) { |
| 547 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 548 | "PACKET CONTROL ACK for PACKET DOWNLINK " |
| 549 | "ASSIGNMENT.\n"); |
| 550 | rlcmac_diag(); |
| 551 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS); |
| 552 | } |
| 553 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 554 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 555 | bts->rlc_ass_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 556 | if (n3105 == bts->bts_data()->n3105) { |
| 557 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 558 | set_state(GPRS_RLCMAC_RELEASING); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 559 | tbf_timer_start(this, 3195, bts_data()->t3195, 0); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 560 | bts->rlc_ass_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 561 | return; |
| 562 | } |
| 563 | /* reschedule DL assignment */ |
| 564 | dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS; |
| 565 | } else if (direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 566 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 567 | |
| 568 | if (!(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_TO_DL_ACK))) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 569 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 570 | "PACKET DOWNLINK ACK.\n"); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 571 | dl_tbf->rlcmac_diag(); |
| 572 | dl_tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_DL_ACK); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 573 | } |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 574 | dl_tbf->n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 575 | if (dl_tbf->state_is(GPRS_RLCMAC_RELEASING)) |
| 576 | bts->rlc_rel_timedout(); |
| 577 | else |
| 578 | bts->rlc_ack_timedout(); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 579 | if (dl_tbf->n3105 == dl_tbf->bts->bts_data()->n3105) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 580 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 581 | dl_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 582 | tbf_timer_start(dl_tbf, 3195, dl_tbf->bts_data()->t3195, 0); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 583 | bts->rlc_ack_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 584 | return; |
| 585 | } |
| 586 | /* resend IMM.ASS on CCCH on timeout */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 587 | if ((dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)) |
| 588 | && !(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 589 | LOGP(DRLCMAC, LOGL_DEBUG, "Re-send dowlink assignment " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 590 | "for %s on PCH (IMSI=%s)\n", |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 591 | tbf_name(dl_tbf), |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 592 | imsi()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 593 | /* send immediate assignment */ |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 594 | dl_tbf->bts->snd_dl_ass(dl_tbf, 0, imsi()); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 595 | dl_tbf->m_wait_confirm = 1; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 596 | } |
| 597 | } else |
| 598 | LOGP(DRLCMAC, LOGL_ERROR, "- Poll Timeout, but no event!\n"); |
| 599 | } |
| 600 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 601 | static int setup_tbf(struct gprs_rlcmac_tbf *tbf, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 602 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 603 | uint8_t ms_class, uint8_t egprs_ms_class, uint8_t single_slot) |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 604 | { |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 605 | int rc; |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 606 | struct gprs_rlcmac_bts *bts; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 607 | if (!tbf) |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 608 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 609 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 610 | bts = tbf->bts->bts_data(); |
Daniel Willmann | 1b3864f | 2014-07-30 13:25:19 +0200 | [diff] [blame] | 611 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 612 | if (ms->mode() == GprsCodingScheme::EGPRS) |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 613 | ms_class = egprs_ms_class; |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 614 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 615 | tbf->m_created_ts = time(NULL); |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 616 | tbf->set_ms_class(ms_class); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 617 | /* select algorithm */ |
Jacob Erlbeck | e2e004e | 2015-06-18 17:16:26 +0200 | [diff] [blame] | 618 | rc = bts->alloc_algorithm(bts, ms, tbf, bts->alloc_algorithm_curst, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 619 | single_slot, use_trx); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 620 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 621 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 622 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 623 | } |
| 624 | /* assign control ts */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 625 | rc = tbf_assign_control_ts(tbf); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 626 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 627 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 628 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 629 | } |
| 630 | |
| 631 | /* set timestamp */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 632 | gettimeofday(&tbf->meas.rssi_tv, NULL); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 633 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 634 | tbf->set_ms(ms); |
| 635 | |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 636 | LOGP(DRLCMAC, LOGL_INFO, |
| 637 | "Allocated %s: trx = %d, ul_slots = %02x, dl_slots = %02x\n", |
| 638 | tbf->name(), tbf->trx->trx_no, tbf->ul_slots(), tbf->dl_slots()); |
| 639 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 640 | return 0; |
| 641 | } |
| 642 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 643 | gprs_rlcmac_ul_tbf::gprs_rlcmac_ul_tbf(BTS *bts_) : |
| 644 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_UL_TBF), |
| 645 | m_rx_counter(0), |
| 646 | m_n3103(0), |
| 647 | m_contention_resolution_done(0), |
| 648 | m_final_ack_sent(0) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 649 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 650 | memset(&m_usf, 0, sizeof(m_usf)); |
| 651 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 652 | |
| 653 | static int ul_tbf_dtor(struct gprs_rlcmac_ul_tbf *tbf) |
| 654 | { |
| 655 | tbf->~gprs_rlcmac_ul_tbf(); |
| 656 | return 0; |
| 657 | } |
| 658 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 659 | static void setup_egprs_mode(gprs_rlcmac_bts *bts, GprsMs *ms) |
| 660 | { |
| 661 | if (GprsCodingScheme::getEgprsByNum(bts->max_mcs_ul).isEgprsGmsk() && |
| 662 | GprsCodingScheme::getEgprsByNum(bts->max_mcs_dl).isEgprsGmsk() && |
| 663 | ms->mode() != GprsCodingScheme::EGPRS) |
| 664 | { |
| 665 | ms->set_mode(GprsCodingScheme::EGPRS_GMSK); |
| 666 | } else { |
| 667 | ms->set_mode(GprsCodingScheme::EGPRS); |
| 668 | } |
| 669 | } |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 670 | |
| 671 | struct gprs_rlcmac_ul_tbf *tbf_alloc_ul_tbf(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 672 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 673 | uint8_t ms_class, uint8_t egprs_ms_class, uint8_t single_slot) |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 674 | { |
| 675 | struct gprs_rlcmac_ul_tbf *tbf; |
| 676 | int rc; |
| 677 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 678 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
| 679 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 680 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 681 | bts->bts->tbf_failed_egprs_only(); |
| 682 | return NULL; |
| 683 | } |
| 684 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 685 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF starts here **********\n"); |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 686 | LOGP(DRLCMAC, LOGL_INFO, "Allocating %s TBF: MS_CLASS=%d/%d\n", |
| 687 | "UL", ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 688 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 689 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 690 | |
| 691 | if (!tbf) |
| 692 | return NULL; |
| 693 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 694 | talloc_set_destructor(tbf, ul_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 695 | new (tbf) gprs_rlcmac_ul_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 696 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 697 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 698 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 699 | |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 700 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 701 | tbf->enable_egprs(); |
Jacob Erlbeck | 8e323b3 | 2015-12-28 14:07:21 +0100 | [diff] [blame] | 702 | tbf->m_window.set_sns(RLC_EGPRS_SNS); |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 703 | /* TODO: Allow bigger UL windows when CRBB encoding is supported */ |
Jacob Erlbeck | 8e323b3 | 2015-12-28 14:07:21 +0100 | [diff] [blame] | 704 | tbf->m_window.set_ws(RLC_EGPRS_MIN_WS); |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 705 | setup_egprs_mode(bts, ms); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 706 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 707 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 708 | } |
| 709 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 710 | rc = setup_tbf(tbf, ms, use_trx, ms_class, egprs_ms_class, single_slot); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 711 | /* if no resource */ |
| 712 | if (rc < 0) { |
| 713 | talloc_free(tbf); |
| 714 | return NULL; |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 715 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 716 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 717 | llist_add(&tbf->list(), &bts->bts->ul_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 718 | tbf->bts->tbf_ul_created(); |
| 719 | |
| 720 | return tbf; |
| 721 | } |
| 722 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 723 | gprs_rlcmac_dl_tbf::BandWidth::BandWidth() : |
| 724 | dl_bw_octets(0), |
| 725 | dl_loss_lost(0), |
| 726 | dl_loss_received(0) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 727 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 728 | timerclear(&dl_bw_tv); |
| 729 | timerclear(&dl_loss_tv); |
| 730 | } |
| 731 | |
| 732 | gprs_rlcmac_dl_tbf::gprs_rlcmac_dl_tbf(BTS *bts_) : |
| 733 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_DL_TBF), |
| 734 | m_tx_counter(0), |
| 735 | m_wait_confirm(0), |
| 736 | m_dl_ack_requested(false), |
| 737 | m_last_dl_poll_fn(0), |
| 738 | m_last_dl_drained_fn(0) |
| 739 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 740 | memset(&m_llc_timer, 0, sizeof(m_llc_timer)); |
| 741 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 742 | |
| 743 | static int dl_tbf_dtor(struct gprs_rlcmac_dl_tbf *tbf) |
| 744 | { |
| 745 | tbf->~gprs_rlcmac_dl_tbf(); |
| 746 | return 0; |
| 747 | } |
| 748 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 749 | struct gprs_rlcmac_dl_tbf *tbf_alloc_dl_tbf(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 750 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 751 | uint8_t ms_class, uint8_t egprs_ms_class, uint8_t single_slot) |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 752 | { |
| 753 | struct gprs_rlcmac_dl_tbf *tbf; |
| 754 | int rc; |
| 755 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 756 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 3b1c553 | 2016-01-20 12:30:46 +0100 | [diff] [blame] | 757 | if (ms_class > 0) { |
| 758 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 759 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 760 | bts->bts->tbf_failed_egprs_only(); |
| 761 | return NULL; |
| 762 | } |
| 763 | egprs_ms_class = 1; |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 764 | } |
| 765 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 766 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF starts here **********\n"); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 767 | LOGP(DRLCMAC, LOGL_INFO, "Allocating %s TBF: MS_CLASS=%d/%d\n", |
| 768 | "DL", ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 769 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 770 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_dl_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 771 | |
| 772 | if (!tbf) |
| 773 | return NULL; |
| 774 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 775 | talloc_set_destructor(tbf, dl_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 776 | new (tbf) gprs_rlcmac_dl_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 777 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 778 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 779 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 780 | |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 781 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
| 782 | tbf->enable_egprs(); |
| 783 | tbf->m_window.set_sns(RLC_EGPRS_SNS); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 784 | setup_egprs_mode(bts, ms); |
| 785 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 786 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
| 787 | } |
| 788 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 789 | rc = setup_tbf(tbf, ms, use_trx, ms_class, 0, single_slot); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 790 | /* if no resource */ |
| 791 | if (rc < 0) { |
| 792 | talloc_free(tbf); |
| 793 | return NULL; |
| 794 | } |
| 795 | |
Aravind Sirsikar | 8e70bb5 | 2016-09-15 17:51:16 +0530 | [diff] [blame] | 796 | if (tbf->is_egprs_enabled()) |
| 797 | tbf->egprs_calc_window_size(); |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 798 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 799 | llist_add(&tbf->list(), &bts->bts->dl_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 800 | tbf->bts->tbf_dl_created(); |
| 801 | |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 802 | tbf->m_last_dl_poll_fn = -1; |
Jacob Erlbeck | 3bed5d1 | 2015-03-19 11:22:38 +0100 | [diff] [blame] | 803 | tbf->m_last_dl_drained_fn = -1; |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 804 | |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 805 | gettimeofday(&tbf->m_bw.dl_bw_tv, NULL); |
| 806 | gettimeofday(&tbf->m_bw.dl_loss_tv, NULL); |
| 807 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 808 | return tbf; |
| 809 | } |
| 810 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 811 | static void tbf_timer_cb(void *_tbf) |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 812 | { |
| 813 | struct gprs_rlcmac_tbf *tbf = (struct gprs_rlcmac_tbf *)_tbf; |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 814 | tbf->handle_timeout(); |
| 815 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 816 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 817 | void gprs_rlcmac_tbf::handle_timeout() |
| 818 | { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 819 | LOGP(DRLCMAC, LOGL_DEBUG, "%s timer %u expired.\n", |
| 820 | tbf_name(this), T); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 821 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 822 | num_T_exp++; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 823 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 824 | switch (T) { |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 825 | case 0: /* assignment */ |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 826 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) { |
| 827 | if (state_is(GPRS_RLCMAC_ASSIGN)) { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 828 | LOGP(DRLCMAC, LOGL_NOTICE, "%s releasing due to " |
| 829 | "PACCH assignment timeout.\n", tbf_name(this)); |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 830 | tbf_free(this); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 831 | return; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 832 | } else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 833 | LOGP(DRLCMAC, LOGL_ERROR, "Error: %s is not " |
| 834 | "in assign state\n", tbf_name(this)); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 835 | } |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 836 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 837 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 838 | dl_tbf->m_wait_confirm = 0; |
Neels Hofmeyr | 4ea4526 | 2016-06-08 15:27:40 +0200 | [diff] [blame] | 839 | if (dl_tbf->state_is(GPRS_RLCMAC_ASSIGN)) { |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 840 | tbf_assign_control_ts(dl_tbf); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 841 | |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 842 | if (!dl_tbf->upgrade_to_multislot) { |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 843 | /* change state to FLOW, so scheduler |
| 844 | * will start transmission */ |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 845 | dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 846 | break; |
| 847 | } |
| 848 | |
| 849 | /* This tbf can be upgraded to use multiple DL |
| 850 | * timeslots and now that there is already one |
| 851 | * slot assigned send another DL assignment via |
| 852 | * PDCH. */ |
| 853 | |
| 854 | /* keep to flags */ |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 855 | dl_tbf->state_flags &= GPRS_RLCMAC_FLAG_TO_MASK; |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 856 | |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 857 | dl_tbf->update(); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 858 | |
Jacob Erlbeck | 71e5511 | 2015-05-21 11:10:15 +0200 | [diff] [blame] | 859 | dl_tbf->bts->trigger_dl_ass(dl_tbf, dl_tbf); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 860 | } else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 861 | LOGP(DRLCMAC, LOGL_NOTICE, "%s Continue flow after " |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 862 | "IMM.ASS confirm\n", tbf_name(dl_tbf)); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 863 | } |
| 864 | break; |
| 865 | case 3169: |
| 866 | case 3191: |
| 867 | case 3195: |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 868 | LOGP(DRLCMAC, LOGL_NOTICE, "%s T%d timeout during " |
| 869 | "transsmission\n", tbf_name(this), T); |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 870 | rlcmac_diag(); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 871 | /* fall through */ |
| 872 | case 3193: |
Holger Hans Peter Freyther | 8d0e489 | 2013-10-27 12:42:58 +0100 | [diff] [blame] | 873 | LOGP(DRLCMAC, LOGL_DEBUG, |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 874 | "%s will be freed due to timeout\n", tbf_name(this)); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 875 | /* free TBF */ |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 876 | tbf_free(this); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 877 | return; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 878 | break; |
| 879 | default: |
Holger Hans Peter Freyther | 8d0e489 | 2013-10-27 12:42:58 +0100 | [diff] [blame] | 880 | LOGP(DRLCMAC, LOGL_ERROR, |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 881 | "%s timer expired in unknown mode: %u\n", tbf_name(this), T); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 882 | } |
| 883 | } |
| 884 | |
| 885 | int gprs_rlcmac_tbf::rlcmac_diag() |
| 886 | { |
| 887 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) |
| 888 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on CCCH\n"); |
| 889 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) |
| 890 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on PACCH\n"); |
| 891 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_UL_DATA))) |
| 892 | LOGP(DRLCMAC, LOGL_NOTICE, "- Uplink data was received\n"); |
| 893 | else if (direction == GPRS_RLCMAC_UL_TBF) |
| 894 | LOGP(DRLCMAC, LOGL_NOTICE, "- No uplink data received yet\n"); |
| 895 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) |
| 896 | LOGP(DRLCMAC, LOGL_NOTICE, "- Downlink ACK was received\n"); |
| 897 | else if (direction == GPRS_RLCMAC_DL_TBF) |
| 898 | LOGP(DRLCMAC, LOGL_NOTICE, "- No downlink ACK received yet\n"); |
| 899 | |
| 900 | return 0; |
| 901 | } |
| 902 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 903 | struct msgb *gprs_rlcmac_tbf::create_dl_ass(uint32_t fn, uint8_t ts) |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 904 | { |
| 905 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 906 | struct gprs_rlcmac_dl_tbf *new_dl_tbf = NULL; |
Holger Hans Peter Freyther | 9977e15 | 2013-11-24 22:52:10 +0100 | [diff] [blame] | 907 | int poll_ass_dl = 1; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 908 | unsigned int rrbp = 0; |
| 909 | uint32_t new_poll_fn = 0; |
| 910 | int rc; |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 911 | bool old_tfi_is_valid = is_tfi_assigned(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 912 | |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 913 | if (direction == GPRS_RLCMAC_DL_TBF && !is_control_ts(ts)) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 914 | LOGP(DRLCMAC, LOGL_NOTICE, "Cannot poll for downlink " |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 915 | "assigment, because MS cannot reply. (TS=%d, " |
| 916 | "first common TS=%d)\n", ts, |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 917 | first_common_ts); |
| 918 | poll_ass_dl = 0; |
| 919 | } |
| 920 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 921 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 922 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) |
| 923 | { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 924 | LOGP(DRLCMACUL, LOGL_DEBUG, "Polling is already " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 925 | "scheduled for %s, so we must wait for the uplink " |
| 926 | "assignment...\n", tbf_name(this)); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 927 | return NULL; |
| 928 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 929 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 930 | if (rc < 0) |
| 931 | return NULL; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 932 | } |
| 933 | |
| 934 | /* on uplink TBF we get the downlink TBF to be assigned. */ |
| 935 | if (direction == GPRS_RLCMAC_UL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 936 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 937 | |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 938 | /* be sure to check first, if contention resolution is done, |
| 939 | * otherwise we cannot send the assignment yet */ |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 940 | if (!ul_tbf->m_contention_resolution_done) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 941 | LOGP(DRLCMAC, LOGL_DEBUG, "Cannot assign DL TBF now, " |
| 942 | "because contention resolution is not " |
| 943 | "finished.\n"); |
| 944 | return NULL; |
| 945 | } |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 946 | } |
| 947 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 948 | if (ms()) |
| 949 | new_dl_tbf = ms()->dl_tbf(); |
| 950 | |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 951 | if (!new_dl_tbf) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 952 | LOGP(DRLCMACDL, LOGL_ERROR, "We have a schedule for downlink " |
Jacob Erlbeck | 537b149 | 2015-08-21 17:52:07 +0200 | [diff] [blame] | 953 | "assignment at %s, but there is no downlink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 954 | "TBF\n", tbf_name(this)); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 955 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 956 | return NULL; |
| 957 | } |
| 958 | |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 959 | if (new_dl_tbf == as_dl_tbf(this)) |
| 960 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 961 | "New and old TBF are the same %s\n", name()); |
| 962 | |
| 963 | if (old_tfi_is_valid && !new_dl_tbf->is_tlli_valid()) { |
| 964 | LOGP(DRLCMACDL, LOGL_ERROR, |
| 965 | "The old TFI is not assigned and there is no " |
| 966 | "TLLI. Old TBF %s, new TBF %s\n", |
| 967 | name(), new_dl_tbf->name()); |
| 968 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 969 | return NULL; |
| 970 | } |
| 971 | |
Holger Hans Peter Freyther | f5c9747 | 2014-12-26 18:32:00 +0100 | [diff] [blame] | 972 | new_dl_tbf->was_releasing = was_releasing; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 973 | msg = msgb_alloc(23, "rlcmac_dl_ass"); |
| 974 | if (!msg) |
| 975 | return NULL; |
| 976 | bitvec *ass_vec = bitvec_alloc(23); |
| 977 | if (!ass_vec) { |
| 978 | msgb_free(msg); |
| 979 | return NULL; |
| 980 | } |
| 981 | bitvec_unhex(ass_vec, |
| 982 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 983 | LOGP(DRLCMAC, LOGL_INFO, "%s start Packet Downlink Assignment (PACCH)\n", tbf_name(new_dl_tbf)); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 984 | RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)talloc_zero(tall_pcu_ctx, RlcMacDownlink_t); |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 985 | Encoding::write_packet_downlink_assignment(mac_control_block, |
| 986 | old_tfi_is_valid, m_tfi, (direction == GPRS_RLCMAC_DL_TBF), |
| 987 | new_dl_tbf, poll_ass_dl, rrbp, |
| 988 | bts_data()->alpha, bts_data()->gamma, -1, 0, |
Jacob Erlbeck | 166c9fc | 2016-01-07 16:04:29 +0100 | [diff] [blame] | 989 | is_egprs_enabled()); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 990 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++\n"); |
| 991 | encode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 992 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 993 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Downlink Assignment -------------------------\n"); |
| 994 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 995 | bitvec_free(ass_vec); |
| 996 | talloc_free(mac_control_block); |
| 997 | |
| 998 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 999 | set_polling(new_poll_fn, ts); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1000 | dl_ass_state = GPRS_RLCMAC_DL_ASS_WAIT_ACK; |
Jacob Erlbeck | 16d29c7 | 2015-08-24 13:30:39 +0200 | [diff] [blame] | 1001 | LOGP(DRLCMACDL, LOGL_INFO, |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 1002 | "%s Scheduled DL Assignment polling on FN=%d, TS=%d\n", |
| 1003 | name(), poll_fn, poll_ts); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1004 | } else { |
| 1005 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 1006 | new_dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1007 | tbf_assign_control_ts(new_dl_tbf); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1008 | /* stop pending assignment timer */ |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1009 | new_dl_tbf->stop_timer(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1010 | |
| 1011 | } |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1012 | |
| 1013 | return msg; |
| 1014 | } |
| 1015 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame^] | 1016 | struct msgb *gprs_rlcmac_tbf::create_packet_access_reject() |
| 1017 | { |
| 1018 | struct msgb *msg; |
| 1019 | |
| 1020 | msg = msgb_alloc(23, "rlcmac_ul_ass_rej"); |
| 1021 | |
| 1022 | bitvec *packet_access_rej = bitvec_alloc(23); |
| 1023 | |
| 1024 | bitvec_unhex(packet_access_rej, |
| 1025 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
| 1026 | |
| 1027 | Encoding::write_packet_access_reject( |
| 1028 | packet_access_rej, tlli()); |
| 1029 | |
| 1030 | bitvec_pack(packet_access_rej, msgb_put(msg, 23)); |
| 1031 | |
| 1032 | bitvec_free(packet_access_rej); |
| 1033 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1034 | |
| 1035 | return msg; |
| 1036 | |
| 1037 | } |
| 1038 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1039 | struct msgb *gprs_rlcmac_tbf::create_ul_ass(uint32_t fn, uint8_t ts) |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1040 | { |
| 1041 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1042 | struct gprs_rlcmac_ul_tbf *new_tbf = NULL; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1043 | int rc; |
| 1044 | unsigned int rrbp; |
| 1045 | uint32_t new_poll_fn; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1046 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1047 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1048 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1049 | LOGP(DRLCMACUL, LOGL_DEBUG, "Polling is already " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1050 | "scheduled for %s, so we must wait for the uplink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1051 | "assignment...\n", tbf_name(this)); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1052 | return NULL; |
| 1053 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1054 | |
| 1055 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1056 | if (rc < 0) |
| 1057 | return NULL; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1058 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1059 | if (ms()) |
| 1060 | new_tbf = ms()->ul_tbf(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1061 | if (!new_tbf) { |
| 1062 | LOGP(DRLCMACUL, LOGL_ERROR, "We have a schedule for uplink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1063 | "assignment at downlink %s, but there is no uplink " |
| 1064 | "TBF\n", tbf_name(this)); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1065 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1066 | return NULL; |
| 1067 | } |
| 1068 | |
| 1069 | msg = msgb_alloc(23, "rlcmac_ul_ass"); |
| 1070 | if (!msg) |
| 1071 | return NULL; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 1072 | LOGP(DRLCMAC, LOGL_INFO, "%ss start Packet Uplink Assignment (PACCH)\n", tbf_name(new_tbf)); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1073 | bitvec *ass_vec = bitvec_alloc(23); |
| 1074 | if (!ass_vec) { |
| 1075 | msgb_free(msg); |
| 1076 | return NULL; |
| 1077 | } |
| 1078 | bitvec_unhex(ass_vec, |
| 1079 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1080 | Encoding::write_packet_uplink_assignment(bts_data(), ass_vec, m_tfi, |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1081 | (direction == GPRS_RLCMAC_DL_TBF), tlli(), |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1082 | is_tlli_valid(), new_tbf, 1, rrbp, bts_data()->alpha, |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 1083 | bts_data()->gamma, -1, is_egprs_enabled()); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1084 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1085 | RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)talloc_zero(tall_pcu_ctx, RlcMacDownlink_t); |
| 1086 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++\n"); |
| 1087 | decode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 1088 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 1089 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Uplink Assignment -------------------------\n"); |
| 1090 | bitvec_free(ass_vec); |
| 1091 | talloc_free(mac_control_block); |
| 1092 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1093 | set_polling(new_poll_fn, ts); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1094 | ul_ass_state = GPRS_RLCMAC_UL_ASS_WAIT_ACK; |
Jacob Erlbeck | 16d29c7 | 2015-08-24 13:30:39 +0200 | [diff] [blame] | 1095 | LOGP(DRLCMACDL, LOGL_INFO, |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 1096 | "%s Scheduled UL Assignment polling on FN=%d, TS=%d\n", |
| 1097 | name(), poll_fn, poll_ts); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1098 | |
| 1099 | return msg; |
| 1100 | } |
| 1101 | |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1102 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_trx *trx) |
| 1103 | { |
Jacob Erlbeck | 3a10dbd | 2015-07-10 19:52:37 +0200 | [diff] [blame] | 1104 | for (uint8_t ts = 0; ts < 8; ts++) |
| 1105 | free_all(&trx->pdch[ts]); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1106 | } |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1107 | |
| 1108 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_pdch *pdch) |
| 1109 | { |
| 1110 | for (uint8_t tfi = 0; tfi < 32; tfi++) { |
| 1111 | struct gprs_rlcmac_tbf *tbf; |
| 1112 | |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1113 | tbf = pdch->ul_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1114 | if (tbf) |
| 1115 | tbf_free(tbf); |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1116 | tbf = pdch->dl_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1117 | if (tbf) |
| 1118 | tbf_free(tbf); |
| 1119 | } |
| 1120 | } |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1121 | |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1122 | int gprs_rlcmac_tbf::establish_dl_tbf_on_pacch() |
| 1123 | { |
| 1124 | struct gprs_rlcmac_dl_tbf *new_tbf = NULL; |
| 1125 | |
| 1126 | bts->tbf_reused(); |
| 1127 | |
| 1128 | new_tbf = tbf_alloc_dl_tbf(bts->bts_data(), ms(), |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1129 | this->trx->trx_no, ms_class(), |
| 1130 | ms() ? ms()->egprs_ms_class() : 0, 0); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1131 | |
| 1132 | if (!new_tbf) { |
| 1133 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
| 1134 | return -1; |
| 1135 | } |
| 1136 | |
| 1137 | LOGP(DRLCMAC, LOGL_DEBUG, "%s Trigger downlink assignment on PACCH\n", |
| 1138 | tbf_name(this)); |
| 1139 | bts->trigger_dl_ass(new_tbf, this); |
| 1140 | |
| 1141 | return 0; |
| 1142 | } |
| 1143 | |
Jacob Erlbeck | e8f5fe5 | 2015-12-14 13:23:15 +0100 | [diff] [blame] | 1144 | int gprs_rlcmac_tbf::set_tlli_from_ul(uint32_t new_tlli) |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1145 | { |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1146 | struct gprs_rlcmac_tbf *dl_tbf = NULL; |
| 1147 | struct gprs_rlcmac_tbf *ul_tbf = NULL; |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1148 | GprsMs *old_ms; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1149 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1150 | OSMO_ASSERT(direction == GPRS_RLCMAC_UL_TBF); |
| 1151 | |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1152 | old_ms = bts->ms_by_tlli(new_tlli); |
Jacob Erlbeck | 9659d59 | 2015-09-01 11:06:14 +0200 | [diff] [blame] | 1153 | /* Keep the old MS object for the update_ms() */ |
| 1154 | GprsMs::Guard guard(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1155 | if (old_ms) { |
| 1156 | /* Get them before calling set_ms() */ |
| 1157 | dl_tbf = old_ms->dl_tbf(); |
| 1158 | ul_tbf = old_ms->ul_tbf(); |
| 1159 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1160 | if (!ms()) |
| 1161 | set_ms(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1162 | } |
| 1163 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1164 | if (dl_tbf && dl_tbf->ms() != ms()) { |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1165 | LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from " |
| 1166 | "TLLI=0x%08x while %s still exists. " |
| 1167 | "Killing pending DL TBF\n", tlli(), |
| 1168 | tbf_name(dl_tbf)); |
| 1169 | tbf_free(dl_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1170 | dl_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1171 | } |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1172 | if (ul_tbf && ul_tbf->ms() != ms()) { |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1173 | LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from " |
| 1174 | "TLLI=0x%08x while %s still exists. " |
| 1175 | "Killing pending UL TBF\n", tlli(), |
| 1176 | tbf_name(ul_tbf)); |
| 1177 | tbf_free(ul_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1178 | ul_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1179 | } |
Jacob Erlbeck | 5f93f85 | 2016-01-21 20:48:39 +0100 | [diff] [blame] | 1180 | |
| 1181 | /* The TLLI has been taken from an UL message */ |
| 1182 | update_ms(new_tlli, GPRS_RLCMAC_UL_TBF); |
| 1183 | |
| 1184 | #if 0 /* REMOVEME ??? */ |
| 1185 | if (ms()->need_dl_tbf()) |
| 1186 | establish_dl_tbf_on_pacch(); |
| 1187 | #endif |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1188 | return 1; |
| 1189 | } |
| 1190 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1191 | const char *tbf_name(gprs_rlcmac_tbf *tbf) |
| 1192 | { |
Alexander Couzens | e04fd0c | 2016-05-31 13:18:01 +0200 | [diff] [blame] | 1193 | return tbf ? tbf->name() : "(no TBF)"; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1194 | } |
| 1195 | |
| 1196 | const char *gprs_rlcmac_tbf::name() const |
| 1197 | { |
| 1198 | snprintf(m_name_buf, sizeof(m_name_buf) - 1, |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1199 | "TBF(TFI=%d TLLI=0x%08x DIR=%s STATE=%s%s)", |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1200 | m_tfi, tlli(), |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1201 | direction == GPRS_RLCMAC_UL_TBF ? "UL" : "DL", |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1202 | state_name(), |
| 1203 | is_egprs_enabled() ? " EGPRS" : "" |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1204 | ); |
| 1205 | m_name_buf[sizeof(m_name_buf) - 1] = '\0'; |
| 1206 | return m_name_buf; |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1207 | } |
Holger Hans Peter Freyther | 758dc12 | 2013-11-06 20:39:45 +0100 | [diff] [blame] | 1208 | |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1209 | void gprs_rlcmac_tbf::rotate_in_list() |
| 1210 | { |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1211 | llist_del(&list()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1212 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1213 | llist_add(&list(), &bts->ul_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1214 | else |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1215 | llist_add(&list(), &bts->dl_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1216 | } |
Holger Hans Peter Freyther | 8f399de | 2013-12-25 20:22:35 +0100 | [diff] [blame] | 1217 | |
| 1218 | uint8_t gprs_rlcmac_tbf::tsc() const |
| 1219 | { |
| 1220 | return trx->pdch[first_ts].tsc; |
| 1221 | } |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 1222 | |
Jacob Erlbeck | 617c712 | 2015-06-30 09:18:30 +0200 | [diff] [blame] | 1223 | uint8_t gprs_rlcmac_tbf::dl_slots() const |
| 1224 | { |
| 1225 | uint8_t slots = 0; |
| 1226 | size_t i; |
| 1227 | |
| 1228 | if (direction == GPRS_RLCMAC_UL_TBF) |
| 1229 | return 0; |
| 1230 | |
| 1231 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1232 | if (pdch[i]) |
| 1233 | slots |= 1 << i; |
| 1234 | |
| 1235 | return slots; |
| 1236 | } |
| 1237 | |
| 1238 | uint8_t gprs_rlcmac_tbf::ul_slots() const |
| 1239 | { |
| 1240 | uint8_t slots = 0; |
| 1241 | size_t i; |
| 1242 | |
| 1243 | if (direction == GPRS_RLCMAC_DL_TBF) { |
| 1244 | if (control_ts < 8) |
| 1245 | slots |= 1 << control_ts; |
| 1246 | if (first_common_ts < 8) |
| 1247 | slots |= 1 << first_common_ts; |
| 1248 | |
| 1249 | return slots; |
| 1250 | } |
| 1251 | |
| 1252 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1253 | if (pdch[i]) |
| 1254 | slots |= 1 << i; |
| 1255 | |
| 1256 | return slots; |
| 1257 | } |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1258 | |
| 1259 | bool gprs_rlcmac_tbf::is_control_ts(uint8_t ts) const |
| 1260 | { |
| 1261 | return ts == control_ts; |
| 1262 | } |