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), |
| 77 | m_ta(0), |
| 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 | |
| 154 | m_ta = ta; |
| 155 | } |
| 156 | |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 157 | uint8_t gprs_rlcmac_tbf::ms_class() const |
| 158 | { |
| 159 | return m_ms ? m_ms->ms_class() : m_ms_class; |
| 160 | } |
| 161 | |
| 162 | void gprs_rlcmac_tbf::set_ms_class(uint8_t ms_class_) |
| 163 | { |
| 164 | if (ms()) |
| 165 | ms()->set_ms_class(ms_class_); |
| 166 | |
| 167 | m_ms_class = ms_class_; |
| 168 | } |
| 169 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 170 | GprsCodingScheme gprs_rlcmac_tbf::current_cs() const |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 171 | { |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 172 | GprsCodingScheme cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 173 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 174 | cs = m_ms ? m_ms->current_cs_ul() : GprsCodingScheme(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 175 | else |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 176 | cs = m_ms ? m_ms->current_cs_dl() : GprsCodingScheme(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 177 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 178 | return cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 179 | } |
| 180 | |
Jacob Erlbeck | 489a2b3 | 2015-05-28 19:07:01 +0200 | [diff] [blame] | 181 | gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() |
| 182 | { |
| 183 | return m_ms ? m_ms->llc_queue() : NULL; |
| 184 | } |
| 185 | |
| 186 | const gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() const |
| 187 | { |
| 188 | return m_ms ? m_ms->llc_queue() : NULL; |
| 189 | } |
| 190 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 191 | void gprs_rlcmac_tbf::set_ms(GprsMs *ms) |
| 192 | { |
| 193 | if (m_ms == ms) |
| 194 | return; |
| 195 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 196 | if (m_ms) { |
| 197 | /* Save the TA locally. This will also be called, if the MS |
| 198 | * object detaches itself from the TBF, for instance if |
| 199 | * attach_tbf() is called */ |
| 200 | m_ta = m_ms->ta(); |
| 201 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 202 | m_ms->detach_tbf(this); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 203 | } |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 204 | |
| 205 | m_ms = ms; |
| 206 | |
| 207 | if (m_ms) |
| 208 | m_ms->attach_tbf(this); |
| 209 | } |
| 210 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 211 | void gprs_rlcmac_tbf::merge_and_clear_ms(GprsMs *old_ms) |
| 212 | { |
| 213 | if (old_ms == ms()) |
| 214 | return; |
| 215 | |
| 216 | GprsMs::Guard guard_old(old_ms); |
| 217 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 218 | /* Clean up the old MS object */ |
| 219 | /* TODO: Use timer? */ |
| 220 | if (old_ms->ul_tbf() && old_ms->ul_tbf()->T == 0) { |
| 221 | if (old_ms->ul_tbf() == this) { |
| 222 | LOGP(DRLCMAC, LOGL_ERROR, |
| 223 | "%s is referred by the old MS " |
| 224 | "and will not be deleted\n", |
| 225 | name()); |
| 226 | set_ms(NULL); |
| 227 | } else { |
| 228 | tbf_free(old_ms->ul_tbf()); |
| 229 | } |
| 230 | } |
| 231 | if (old_ms->dl_tbf() && old_ms->dl_tbf()->T == 0) { |
| 232 | if (old_ms->dl_tbf() == this) { |
| 233 | LOGP(DRLCMAC, LOGL_ERROR, |
| 234 | "%s is referred by the old MS " |
| 235 | "and will not be deleted\n", |
| 236 | name()); |
| 237 | set_ms(NULL); |
| 238 | } else { |
| 239 | tbf_free(old_ms->dl_tbf()); |
| 240 | } |
| 241 | } |
| 242 | |
Jacob Erlbeck | 2b349b5 | 2015-08-18 11:55:03 +0200 | [diff] [blame] | 243 | ms()->merge_old_ms(old_ms); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 244 | } |
| 245 | |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 246 | 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] | 247 | { |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 248 | if (!ms()) |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 249 | return; |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 250 | |
| 251 | if (!tlli) |
| 252 | return; |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 253 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 254 | /* TODO: When the TLLI does not match the ms, check if there is another |
| 255 | * MS object that belongs to that TLLI and if yes make sure one of them |
| 256 | * gets deleted. This is the same problem that can arise with |
| 257 | * assign_imsi() so there should be a unified solution */ |
| 258 | if (!ms()->check_tlli(tlli)) { |
| 259 | GprsMs *old_ms; |
| 260 | |
| 261 | old_ms = bts->ms_store().get_ms(tlli, 0, NULL); |
| 262 | if (old_ms) |
| 263 | merge_and_clear_ms(old_ms); |
| 264 | } |
| 265 | |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 266 | if (dir == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 267 | ms()->set_tlli(tlli); |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 268 | else |
| 269 | ms()->confirm_tlli(tlli); |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 270 | } |
| 271 | |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 272 | gprs_rlcmac_ul_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 273 | 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] | 274 | uint32_t tlli, uint8_t ta, GprsMs *ms) |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 275 | { |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 276 | struct gprs_rlcmac_ul_tbf *tbf; |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 277 | |
| 278 | #warning "Copy and paste with tbf_new_dl_assignment" |
Holger Hans Peter Freyther | ba26368 | 2013-12-25 19:15:57 +0100 | [diff] [blame] | 279 | /* create new TBF, use same TRX as DL TBF */ |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 280 | /* use multislot class of downlink TBF */ |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 281 | 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] | 282 | if (!tbf) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 283 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 284 | /* FIXME: send reject */ |
| 285 | return NULL; |
| 286 | } |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 287 | tbf->m_contention_resolution_done = 1; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 288 | tbf->set_state(GPRS_RLCMAC_ASSIGN); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 289 | tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH); |
| 290 | tbf_timer_start(tbf, 3169, bts->t3169, 0); |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 291 | tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 292 | OSMO_ASSERT(tbf->ms()); |
| 293 | |
| 294 | tbf->ms()->set_ta(ta); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 295 | |
| 296 | return tbf; |
| 297 | } |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 298 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 299 | static void tbf_unlink_pdch(struct gprs_rlcmac_tbf *tbf) |
| 300 | { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 301 | int ts; |
| 302 | |
Jacob Erlbeck | ccc34e4 | 2015-06-29 13:45:05 +0200 | [diff] [blame] | 303 | for (ts = 0; ts < 8; ts++) { |
| 304 | if (!tbf->pdch[ts]) |
| 305 | continue; |
| 306 | |
| 307 | tbf->pdch[ts]->detach_tbf(tbf); |
| 308 | tbf->pdch[ts] = NULL; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 309 | } |
| 310 | } |
| 311 | |
| 312 | void tbf_free(struct gprs_rlcmac_tbf *tbf) |
| 313 | { |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 314 | /* update counters */ |
| 315 | if (tbf->direction == GPRS_RLCMAC_UL_TBF) { |
| 316 | tbf->bts->tbf_ul_freed(); |
| 317 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 318 | tbf->bts->tbf_ul_aborted(); |
| 319 | } else { |
| 320 | tbf->bts->tbf_dl_freed(); |
| 321 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 322 | tbf->bts->tbf_dl_aborted(); |
| 323 | } |
| 324 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 325 | /* Give final measurement report */ |
| 326 | gprs_rlcmac_rssi_rep(tbf); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 327 | if (tbf->direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 328 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
Jacob Erlbeck | f04a5b3 | 2016-01-21 20:42:40 +0100 | [diff] [blame] | 329 | |
| 330 | dl_tbf->abort(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 331 | dl_tbf->cleanup(); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 332 | } |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 333 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 334 | LOGP(DRLCMAC, LOGL_INFO, "%s free\n", tbf_name(tbf)); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 335 | if (tbf->ul_ass_state != GPRS_RLCMAC_UL_ASS_NONE) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 336 | LOGP(DRLCMAC, LOGL_ERROR, "%s Software error: Pending uplink " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 337 | "assignment. This may not happen, because the " |
| 338 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 339 | "be sure not to free in this state. PLEASE FIX!\n", |
| 340 | tbf_name(tbf)); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 341 | if (tbf->dl_ass_state != GPRS_RLCMAC_DL_ASS_NONE) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 342 | LOGP(DRLCMAC, LOGL_ERROR, "%s Software error: Pending downlink " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 343 | "assignment. This may not happen, because the " |
| 344 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 345 | "be sure not to free in this state. PLEASE FIX!\n", |
| 346 | tbf_name(tbf)); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 347 | tbf->stop_timer(); |
Holger Hans Peter Freyther | 782f6dd | 2013-10-26 18:31:51 +0200 | [diff] [blame] | 348 | #warning "TODO: Could/Should generate bssgp_tx_llc_discarded" |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 349 | tbf_unlink_pdch(tbf); |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 350 | llist_del(&tbf->list()); |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 351 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 352 | if (tbf->ms()) |
| 353 | tbf->set_ms(NULL); |
| 354 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 355 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF ends here **********\n"); |
| 356 | talloc_free(tbf); |
| 357 | } |
| 358 | |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 359 | int gprs_rlcmac_tbf::update() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 360 | { |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 361 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 362 | int rc; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 363 | |
| 364 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF update **********\n"); |
| 365 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 366 | if (direction != GPRS_RLCMAC_DL_TBF) |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 367 | return -EINVAL; |
| 368 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 369 | tbf_unlink_pdch(this); |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 370 | rc = bts_data->alloc_algorithm(bts_data, ms(), this, |
| 371 | bts_data->alloc_algorithm_curst, 0, -1); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 372 | /* if no resource */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 373 | if (rc < 0) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 374 | LOGP(DRLCMAC, LOGL_ERROR, "No resource after update???\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 375 | return -rc; |
| 376 | } |
| 377 | |
| 378 | return 0; |
| 379 | } |
| 380 | |
| 381 | int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf) |
| 382 | { |
| 383 | if (tbf->control_ts == 0xff) |
| 384 | LOGP(DRLCMAC, LOGL_INFO, "- Setting Control TS %d\n", |
| 385 | tbf->first_common_ts); |
| 386 | else if (tbf->control_ts != tbf->first_common_ts) |
| 387 | LOGP(DRLCMAC, LOGL_INFO, "- Changing Control TS %d\n", |
| 388 | tbf->first_common_ts); |
| 389 | tbf->control_ts = tbf->first_common_ts; |
| 390 | |
| 391 | return 0; |
| 392 | } |
| 393 | |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 394 | const char *gprs_rlcmac_tbf::tbf_state_name[] = { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 395 | "NULL", |
| 396 | "ASSIGN", |
Jacob Erlbeck | f1a7b8f | 2016-02-01 20:59:04 +0100 | [diff] [blame] | 397 | "WAIT ASSIGN", |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 398 | "FLOW", |
| 399 | "FINISHED", |
| 400 | "WAIT RELEASE", |
| 401 | "RELEASING", |
| 402 | }; |
| 403 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 404 | void tbf_timer_start(struct gprs_rlcmac_tbf *tbf, unsigned int T, |
| 405 | unsigned int seconds, unsigned int microseconds) |
| 406 | { |
| 407 | if (!osmo_timer_pending(&tbf->timer)) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 408 | LOGP(DRLCMAC, LOGL_DEBUG, "%s starting timer %u.\n", |
| 409 | tbf_name(tbf), T); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 410 | else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 411 | LOGP(DRLCMAC, LOGL_DEBUG, "%s restarting timer %u " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 412 | "while old timer %u pending \n", |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 413 | tbf_name(tbf), T, tbf->T); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 414 | |
| 415 | tbf->T = T; |
| 416 | tbf->num_T_exp = 0; |
| 417 | |
| 418 | /* Tunning timers can be safely re-scheduled. */ |
| 419 | tbf->timer.data = tbf; |
| 420 | tbf->timer.cb = &tbf_timer_cb; |
| 421 | |
| 422 | osmo_timer_schedule(&tbf->timer, seconds, microseconds); |
| 423 | } |
| 424 | |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 425 | void gprs_rlcmac_tbf::stop_t3191() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 426 | { |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 427 | return stop_timer(); |
| 428 | } |
| 429 | |
| 430 | void gprs_rlcmac_tbf::stop_timer() |
| 431 | { |
| 432 | if (osmo_timer_pending(&timer)) { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 433 | LOGP(DRLCMAC, LOGL_DEBUG, "%s stopping timer %u.\n", |
| 434 | tbf_name(this), T); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 435 | osmo_timer_del(&timer); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 436 | } |
| 437 | } |
| 438 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 439 | int gprs_rlcmac_tbf::check_polling(uint32_t fn, uint8_t ts, |
| 440 | uint32_t *poll_fn_, unsigned int *rrbp_) |
| 441 | { |
| 442 | uint32_t fn_offs = 13; |
| 443 | uint32_t new_poll_fn = (fn + fn_offs) % 2715648; |
| 444 | |
| 445 | if (!is_control_ts(ts)) { |
| 446 | LOGP(DRLCMAC, LOGL_DEBUG, "Polling cannot be " |
| 447 | "scheduled in this TS %d (first control TS %d)\n", |
| 448 | ts, control_ts); |
| 449 | return -EINVAL; |
| 450 | } |
| 451 | if (poll_state != GPRS_RLCMAC_POLL_NONE) { |
| 452 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 453 | "Polling is already scheduled for %s\n", |
| 454 | name()); |
| 455 | return -EBUSY; |
| 456 | } |
| 457 | if (bts->sba()->find(trx->trx_no, ts, (fn + 13) % 2715648)) { |
| 458 | LOGP(DRLCMAC, LOGL_DEBUG, "%s: Polling is already scheduled " |
| 459 | "for single block allocation at FN %d TS %d ...\n", |
| 460 | name(), new_poll_fn, ts); |
| 461 | return -EBUSY; |
| 462 | } |
| 463 | |
| 464 | *poll_fn_ = new_poll_fn; |
| 465 | *rrbp_ = 0; |
| 466 | |
| 467 | return 0; |
| 468 | } |
| 469 | |
| 470 | void gprs_rlcmac_tbf::set_polling(uint32_t new_poll_fn, uint8_t ts) |
| 471 | { |
| 472 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 473 | "%s: Scheduling polling at FN %d TS %d\n", |
| 474 | name(), new_poll_fn, ts); |
| 475 | |
| 476 | /* schedule polling */ |
| 477 | poll_state = GPRS_RLCMAC_POLL_SCHED; |
| 478 | poll_fn = new_poll_fn; |
| 479 | poll_ts = ts; |
| 480 | } |
| 481 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 482 | void gprs_rlcmac_tbf::poll_timeout() |
| 483 | { |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 484 | LOGP(DRLCMAC, LOGL_NOTICE, "%s poll timeout for FN=%d, TS=%d (curr FN %d)\n", |
| 485 | 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] | 486 | |
| 487 | poll_state = GPRS_RLCMAC_POLL_NONE; |
| 488 | |
| 489 | if (ul_ack_state == GPRS_RLCMAC_UL_ACK_WAIT_ACK) { |
| 490 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_UL_ACK))) { |
| 491 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 492 | "PACKET CONTROL ACK for PACKET UPLINK ACK\n"); |
| 493 | rlcmac_diag(); |
| 494 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_UL_ACK); |
| 495 | } |
| 496 | ul_ack_state = GPRS_RLCMAC_UL_ACK_NONE; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 497 | bts->rlc_ack_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 498 | if (state_is(GPRS_RLCMAC_FINISHED)) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 499 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 500 | ul_tbf->m_n3103++; |
| 501 | 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] | 502 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 503 | "- N3103 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 504 | ul_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 505 | 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] | 506 | return; |
| 507 | } |
| 508 | /* reschedule UL ack */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 509 | 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] | 510 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 511 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 512 | } else if (ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
| 513 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS))) { |
| 514 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 515 | "PACKET CONTROL ACK for PACKET UPLINK " |
| 516 | "ASSIGNMENT.\n"); |
| 517 | rlcmac_diag(); |
| 518 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS); |
| 519 | } |
| 520 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 521 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 522 | bts->rlc_ass_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 523 | if (n3105 == bts_data()->n3105) { |
| 524 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 525 | set_state(GPRS_RLCMAC_RELEASING); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 526 | tbf_timer_start(this, 3195, bts_data()->t3195, 0); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 527 | bts->rlc_ass_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 528 | return; |
| 529 | } |
| 530 | /* reschedule UL assignment */ |
| 531 | ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS; |
| 532 | } else if (dl_ass_state == GPRS_RLCMAC_DL_ASS_WAIT_ACK) { |
| 533 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS))) { |
| 534 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 535 | "PACKET CONTROL ACK for PACKET DOWNLINK " |
| 536 | "ASSIGNMENT.\n"); |
| 537 | rlcmac_diag(); |
| 538 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS); |
| 539 | } |
| 540 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 541 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 542 | bts->rlc_ass_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 543 | if (n3105 == bts->bts_data()->n3105) { |
| 544 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 545 | set_state(GPRS_RLCMAC_RELEASING); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 546 | tbf_timer_start(this, 3195, bts_data()->t3195, 0); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 547 | bts->rlc_ass_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 548 | return; |
| 549 | } |
| 550 | /* reschedule DL assignment */ |
| 551 | dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS; |
| 552 | } else if (direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 553 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 554 | |
| 555 | 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] | 556 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 557 | "PACKET DOWNLINK ACK.\n"); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 558 | dl_tbf->rlcmac_diag(); |
| 559 | 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] | 560 | } |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 561 | dl_tbf->n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 562 | if (dl_tbf->state_is(GPRS_RLCMAC_RELEASING)) |
| 563 | bts->rlc_rel_timedout(); |
| 564 | else |
| 565 | bts->rlc_ack_timedout(); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 566 | if (dl_tbf->n3105 == dl_tbf->bts->bts_data()->n3105) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 567 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 568 | dl_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 569 | tbf_timer_start(dl_tbf, 3195, dl_tbf->bts_data()->t3195, 0); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 570 | bts->rlc_ack_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 571 | return; |
| 572 | } |
| 573 | /* resend IMM.ASS on CCCH on timeout */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 574 | if ((dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)) |
| 575 | && !(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 576 | LOGP(DRLCMAC, LOGL_DEBUG, "Re-send dowlink assignment " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 577 | "for %s on PCH (IMSI=%s)\n", |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 578 | tbf_name(dl_tbf), |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 579 | imsi()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 580 | /* send immediate assignment */ |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 581 | dl_tbf->bts->snd_dl_ass(dl_tbf, 0, imsi()); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 582 | dl_tbf->m_wait_confirm = 1; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 583 | } |
| 584 | } else |
| 585 | LOGP(DRLCMAC, LOGL_ERROR, "- Poll Timeout, but no event!\n"); |
| 586 | } |
| 587 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 588 | static int setup_tbf(struct gprs_rlcmac_tbf *tbf, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 589 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 590 | 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] | 591 | { |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 592 | int rc; |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 593 | struct gprs_rlcmac_bts *bts; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 594 | if (!tbf) |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 595 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 596 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 597 | bts = tbf->bts->bts_data(); |
Daniel Willmann | 1b3864f | 2014-07-30 13:25:19 +0200 | [diff] [blame] | 598 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 599 | if (ms->mode() == GprsCodingScheme::EGPRS) |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 600 | ms_class = egprs_ms_class; |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 601 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 602 | tbf->m_created_ts = time(NULL); |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 603 | tbf->set_ms_class(ms_class); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 604 | /* select algorithm */ |
Jacob Erlbeck | e2e004e | 2015-06-18 17:16:26 +0200 | [diff] [blame] | 605 | rc = bts->alloc_algorithm(bts, ms, tbf, bts->alloc_algorithm_curst, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 606 | single_slot, use_trx); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 607 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 608 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 609 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 610 | } |
| 611 | /* assign control ts */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 612 | rc = tbf_assign_control_ts(tbf); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 613 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 614 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 615 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 616 | } |
| 617 | |
| 618 | /* set timestamp */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 619 | gettimeofday(&tbf->meas.rssi_tv, NULL); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 620 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 621 | tbf->set_ms(ms); |
| 622 | |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 623 | LOGP(DRLCMAC, LOGL_INFO, |
| 624 | "Allocated %s: trx = %d, ul_slots = %02x, dl_slots = %02x\n", |
| 625 | tbf->name(), tbf->trx->trx_no, tbf->ul_slots(), tbf->dl_slots()); |
| 626 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 627 | return 0; |
| 628 | } |
| 629 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 630 | gprs_rlcmac_ul_tbf::gprs_rlcmac_ul_tbf(BTS *bts_) : |
| 631 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_UL_TBF), |
| 632 | m_rx_counter(0), |
| 633 | m_n3103(0), |
| 634 | m_contention_resolution_done(0), |
| 635 | m_final_ack_sent(0) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 636 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 637 | memset(&m_usf, 0, sizeof(m_usf)); |
| 638 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 639 | |
| 640 | static int ul_tbf_dtor(struct gprs_rlcmac_ul_tbf *tbf) |
| 641 | { |
| 642 | tbf->~gprs_rlcmac_ul_tbf(); |
| 643 | return 0; |
| 644 | } |
| 645 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 646 | static void setup_egprs_mode(gprs_rlcmac_bts *bts, GprsMs *ms) |
| 647 | { |
| 648 | if (GprsCodingScheme::getEgprsByNum(bts->max_mcs_ul).isEgprsGmsk() && |
| 649 | GprsCodingScheme::getEgprsByNum(bts->max_mcs_dl).isEgprsGmsk() && |
| 650 | ms->mode() != GprsCodingScheme::EGPRS) |
| 651 | { |
| 652 | ms->set_mode(GprsCodingScheme::EGPRS_GMSK); |
| 653 | } else { |
| 654 | ms->set_mode(GprsCodingScheme::EGPRS); |
| 655 | } |
| 656 | } |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 657 | |
| 658 | 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] | 659 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 660 | 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] | 661 | { |
| 662 | struct gprs_rlcmac_ul_tbf *tbf; |
| 663 | int rc; |
| 664 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 665 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
| 666 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 667 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 668 | bts->bts->tbf_failed_egprs_only(); |
| 669 | return NULL; |
| 670 | } |
| 671 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 672 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF starts here **********\n"); |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 673 | LOGP(DRLCMAC, LOGL_INFO, "Allocating %s TBF: MS_CLASS=%d/%d\n", |
| 674 | "UL", ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 675 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 676 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 677 | |
| 678 | if (!tbf) |
| 679 | return NULL; |
| 680 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 681 | talloc_set_destructor(tbf, ul_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 682 | new (tbf) gprs_rlcmac_ul_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 683 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 684 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 685 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 686 | |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 687 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 688 | tbf->enable_egprs(); |
Jacob Erlbeck | 8e323b3 | 2015-12-28 14:07:21 +0100 | [diff] [blame] | 689 | tbf->m_window.set_sns(RLC_EGPRS_SNS); |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 690 | /* TODO: Allow bigger UL windows when CRBB encoding is supported */ |
Jacob Erlbeck | 8e323b3 | 2015-12-28 14:07:21 +0100 | [diff] [blame] | 691 | tbf->m_window.set_ws(RLC_EGPRS_MIN_WS); |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 692 | setup_egprs_mode(bts, ms); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 693 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 694 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 695 | } |
| 696 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 697 | 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] | 698 | /* if no resource */ |
| 699 | if (rc < 0) { |
| 700 | talloc_free(tbf); |
| 701 | return NULL; |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 702 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 703 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 704 | llist_add(&tbf->list(), &bts->bts->ul_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 705 | tbf->bts->tbf_ul_created(); |
| 706 | |
| 707 | return tbf; |
| 708 | } |
| 709 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 710 | gprs_rlcmac_dl_tbf::BandWidth::BandWidth() : |
| 711 | dl_bw_octets(0), |
| 712 | dl_loss_lost(0), |
| 713 | dl_loss_received(0) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 714 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 715 | timerclear(&dl_bw_tv); |
| 716 | timerclear(&dl_loss_tv); |
| 717 | } |
| 718 | |
| 719 | gprs_rlcmac_dl_tbf::gprs_rlcmac_dl_tbf(BTS *bts_) : |
| 720 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_DL_TBF), |
| 721 | m_tx_counter(0), |
| 722 | m_wait_confirm(0), |
| 723 | m_dl_ack_requested(false), |
| 724 | m_last_dl_poll_fn(0), |
| 725 | m_last_dl_drained_fn(0) |
| 726 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 727 | memset(&m_llc_timer, 0, sizeof(m_llc_timer)); |
| 728 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 729 | |
| 730 | static int dl_tbf_dtor(struct gprs_rlcmac_dl_tbf *tbf) |
| 731 | { |
| 732 | tbf->~gprs_rlcmac_dl_tbf(); |
| 733 | return 0; |
| 734 | } |
| 735 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 736 | 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] | 737 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 738 | 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] | 739 | { |
| 740 | struct gprs_rlcmac_dl_tbf *tbf; |
| 741 | int rc; |
| 742 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 743 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 3b1c553 | 2016-01-20 12:30:46 +0100 | [diff] [blame] | 744 | if (ms_class > 0) { |
| 745 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 746 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 747 | bts->bts->tbf_failed_egprs_only(); |
| 748 | return NULL; |
| 749 | } |
| 750 | egprs_ms_class = 1; |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 751 | } |
| 752 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 753 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF starts here **********\n"); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 754 | LOGP(DRLCMAC, LOGL_INFO, "Allocating %s TBF: MS_CLASS=%d/%d\n", |
| 755 | "DL", ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 756 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 757 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_dl_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 758 | |
| 759 | if (!tbf) |
| 760 | return NULL; |
| 761 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 762 | talloc_set_destructor(tbf, dl_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 763 | new (tbf) gprs_rlcmac_dl_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 764 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 765 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 766 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 767 | |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 768 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
| 769 | tbf->enable_egprs(); |
| 770 | tbf->m_window.set_sns(RLC_EGPRS_SNS); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 771 | setup_egprs_mode(bts, ms); |
| 772 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 773 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
| 774 | } |
| 775 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 776 | rc = setup_tbf(tbf, ms, use_trx, ms_class, 0, single_slot); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 777 | /* if no resource */ |
| 778 | if (rc < 0) { |
| 779 | talloc_free(tbf); |
| 780 | return NULL; |
| 781 | } |
| 782 | |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 783 | if (tbf->is_egprs_enabled()) { |
| 784 | unsigned int num_pdch = pcu_bitcount(tbf->dl_slots()); |
| 785 | unsigned int ws = bts->ws_base + num_pdch * bts->ws_pdch; |
| 786 | ws = (ws / 32) * 32; |
| 787 | ws = OSMO_MAX(64, ws); |
| 788 | if (num_pdch == 1) |
| 789 | ws = OSMO_MIN(192, ws); |
| 790 | else |
| 791 | ws = OSMO_MIN(128 * num_pdch, ws); |
| 792 | |
| 793 | LOGP(DRLCMAC, LOGL_INFO, "%s: Setting EGPRS window size to %d\n", |
| 794 | tbf->name(), ws); |
| 795 | tbf->m_window.set_ws(ws); |
| 796 | } |
| 797 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 798 | llist_add(&tbf->list(), &bts->bts->dl_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 799 | tbf->bts->tbf_dl_created(); |
| 800 | |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 801 | tbf->m_last_dl_poll_fn = -1; |
Jacob Erlbeck | 3bed5d1 | 2015-03-19 11:22:38 +0100 | [diff] [blame] | 802 | tbf->m_last_dl_drained_fn = -1; |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 803 | |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 804 | gettimeofday(&tbf->m_bw.dl_bw_tv, NULL); |
| 805 | gettimeofday(&tbf->m_bw.dl_loss_tv, NULL); |
| 806 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 807 | return tbf; |
| 808 | } |
| 809 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 810 | static void tbf_timer_cb(void *_tbf) |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 811 | { |
| 812 | struct gprs_rlcmac_tbf *tbf = (struct gprs_rlcmac_tbf *)_tbf; |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 813 | tbf->handle_timeout(); |
| 814 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 815 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 816 | void gprs_rlcmac_tbf::handle_timeout() |
| 817 | { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 818 | LOGP(DRLCMAC, LOGL_DEBUG, "%s timer %u expired.\n", |
| 819 | tbf_name(this), T); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 820 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 821 | num_T_exp++; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 822 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 823 | switch (T) { |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 824 | case 0: /* assignment */ |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 825 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) { |
| 826 | if (state_is(GPRS_RLCMAC_ASSIGN)) { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 827 | LOGP(DRLCMAC, LOGL_NOTICE, "%s releasing due to " |
Jacob Erlbeck | f1a7b8f | 2016-02-01 20:59:04 +0100 | [diff] [blame] | 828 | "PACCH assignment timeout (not yet sent).\n", |
| 829 | tbf_name(this)); |
| 830 | tbf_free(this); |
| 831 | return; |
| 832 | } else if (state_is(GPRS_RLCMAC_WAIT_ASSIGN)) { |
| 833 | LOGP(DRLCMAC, LOGL_NOTICE, "%s releasing due to " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 834 | "PACCH assignment timeout.\n", tbf_name(this)); |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 835 | tbf_free(this); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 836 | return; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 837 | } else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 838 | LOGP(DRLCMAC, LOGL_ERROR, "Error: %s is not " |
| 839 | "in assign state\n", tbf_name(this)); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 840 | } |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 841 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 842 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 843 | dl_tbf->m_wait_confirm = 0; |
Jacob Erlbeck | f1a7b8f | 2016-02-01 20:59:04 +0100 | [diff] [blame] | 844 | if (dl_tbf->state_is(GPRS_RLCMAC_WAIT_ASSIGN)) { |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 845 | tbf_assign_control_ts(dl_tbf); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 846 | |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 847 | if (!dl_tbf->upgrade_to_multislot) { |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 848 | /* change state to FLOW, so scheduler |
| 849 | * will start transmission */ |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 850 | dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 851 | break; |
| 852 | } |
| 853 | |
| 854 | /* This tbf can be upgraded to use multiple DL |
| 855 | * timeslots and now that there is already one |
| 856 | * slot assigned send another DL assignment via |
| 857 | * PDCH. */ |
| 858 | |
| 859 | /* keep to flags */ |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 860 | dl_tbf->state_flags &= GPRS_RLCMAC_FLAG_TO_MASK; |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 861 | |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 862 | dl_tbf->update(); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 863 | |
Jacob Erlbeck | 71e5511 | 2015-05-21 11:10:15 +0200 | [diff] [blame] | 864 | dl_tbf->bts->trigger_dl_ass(dl_tbf, dl_tbf); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 865 | } else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 866 | LOGP(DRLCMAC, LOGL_NOTICE, "%s Continue flow after " |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 867 | "IMM.ASS confirm\n", tbf_name(dl_tbf)); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 868 | } |
| 869 | break; |
| 870 | case 3169: |
| 871 | case 3191: |
| 872 | case 3195: |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 873 | LOGP(DRLCMAC, LOGL_NOTICE, "%s T%d timeout during " |
| 874 | "transsmission\n", tbf_name(this), T); |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 875 | rlcmac_diag(); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 876 | /* fall through */ |
| 877 | case 3193: |
Holger Hans Peter Freyther | 8d0e489 | 2013-10-27 12:42:58 +0100 | [diff] [blame] | 878 | LOGP(DRLCMAC, LOGL_DEBUG, |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 879 | "%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] | 880 | /* free TBF */ |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 881 | tbf_free(this); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 882 | return; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 883 | break; |
| 884 | default: |
Holger Hans Peter Freyther | 8d0e489 | 2013-10-27 12:42:58 +0100 | [diff] [blame] | 885 | LOGP(DRLCMAC, LOGL_ERROR, |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 886 | "%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] | 887 | } |
| 888 | } |
| 889 | |
| 890 | int gprs_rlcmac_tbf::rlcmac_diag() |
| 891 | { |
| 892 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) |
| 893 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on CCCH\n"); |
| 894 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) |
| 895 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on PACCH\n"); |
| 896 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_UL_DATA))) |
| 897 | LOGP(DRLCMAC, LOGL_NOTICE, "- Uplink data was received\n"); |
| 898 | else if (direction == GPRS_RLCMAC_UL_TBF) |
| 899 | LOGP(DRLCMAC, LOGL_NOTICE, "- No uplink data received yet\n"); |
| 900 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) |
| 901 | LOGP(DRLCMAC, LOGL_NOTICE, "- Downlink ACK was received\n"); |
| 902 | else if (direction == GPRS_RLCMAC_DL_TBF) |
| 903 | LOGP(DRLCMAC, LOGL_NOTICE, "- No downlink ACK received yet\n"); |
| 904 | |
| 905 | return 0; |
| 906 | } |
| 907 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 908 | 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] | 909 | { |
| 910 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 911 | struct gprs_rlcmac_dl_tbf *new_dl_tbf = NULL; |
Holger Hans Peter Freyther | 9977e15 | 2013-11-24 22:52:10 +0100 | [diff] [blame] | 912 | int poll_ass_dl = 1; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 913 | unsigned int rrbp = 0; |
| 914 | uint32_t new_poll_fn = 0; |
| 915 | int rc; |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 916 | bool old_tfi_is_valid = is_tfi_assigned(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 917 | |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 918 | if (direction == GPRS_RLCMAC_DL_TBF && !is_control_ts(ts)) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 919 | LOGP(DRLCMAC, LOGL_NOTICE, "Cannot poll for downlink " |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 920 | "assigment, because MS cannot reply. (TS=%d, " |
| 921 | "first common TS=%d)\n", ts, |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 922 | first_common_ts); |
| 923 | poll_ass_dl = 0; |
| 924 | } |
| 925 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 926 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 927 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) |
| 928 | { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 929 | LOGP(DRLCMACUL, LOGL_DEBUG, "Polling is already " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 930 | "scheduled for %s, so we must wait for the uplink " |
| 931 | "assignment...\n", tbf_name(this)); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 932 | return NULL; |
| 933 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 934 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 935 | if (rc < 0) |
| 936 | return NULL; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 937 | } |
| 938 | |
| 939 | /* on uplink TBF we get the downlink TBF to be assigned. */ |
| 940 | if (direction == GPRS_RLCMAC_UL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 941 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 942 | |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 943 | /* be sure to check first, if contention resolution is done, |
| 944 | * otherwise we cannot send the assignment yet */ |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 945 | if (!ul_tbf->m_contention_resolution_done) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 946 | LOGP(DRLCMAC, LOGL_DEBUG, "Cannot assign DL TBF now, " |
| 947 | "because contention resolution is not " |
| 948 | "finished.\n"); |
| 949 | return NULL; |
| 950 | } |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 951 | } |
| 952 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 953 | if (ms()) |
| 954 | new_dl_tbf = ms()->dl_tbf(); |
| 955 | |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 956 | if (!new_dl_tbf) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 957 | LOGP(DRLCMACDL, LOGL_ERROR, "We have a schedule for downlink " |
Jacob Erlbeck | 537b149 | 2015-08-21 17:52:07 +0200 | [diff] [blame] | 958 | "assignment at %s, but there is no downlink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 959 | "TBF\n", tbf_name(this)); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 960 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 961 | return NULL; |
| 962 | } |
| 963 | |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 964 | if (new_dl_tbf == as_dl_tbf(this)) |
| 965 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 966 | "New and old TBF are the same %s\n", name()); |
| 967 | |
| 968 | if (old_tfi_is_valid && !new_dl_tbf->is_tlli_valid()) { |
| 969 | LOGP(DRLCMACDL, LOGL_ERROR, |
| 970 | "The old TFI is not assigned and there is no " |
| 971 | "TLLI. Old TBF %s, new TBF %s\n", |
| 972 | name(), new_dl_tbf->name()); |
| 973 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 974 | return NULL; |
| 975 | } |
| 976 | |
Holger Hans Peter Freyther | f5c9747 | 2014-12-26 18:32:00 +0100 | [diff] [blame] | 977 | new_dl_tbf->was_releasing = was_releasing; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 978 | msg = msgb_alloc(23, "rlcmac_dl_ass"); |
| 979 | if (!msg) |
| 980 | return NULL; |
| 981 | bitvec *ass_vec = bitvec_alloc(23); |
| 982 | if (!ass_vec) { |
| 983 | msgb_free(msg); |
| 984 | return NULL; |
| 985 | } |
| 986 | bitvec_unhex(ass_vec, |
| 987 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 988 | 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] | 989 | 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] | 990 | Encoding::write_packet_downlink_assignment(mac_control_block, |
| 991 | old_tfi_is_valid, m_tfi, (direction == GPRS_RLCMAC_DL_TBF), |
| 992 | new_dl_tbf, poll_ass_dl, rrbp, |
| 993 | bts_data()->alpha, bts_data()->gamma, -1, 0, |
Jacob Erlbeck | 166c9fc | 2016-01-07 16:04:29 +0100 | [diff] [blame] | 994 | is_egprs_enabled()); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 995 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++\n"); |
| 996 | encode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 997 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 998 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Downlink Assignment -------------------------\n"); |
| 999 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1000 | bitvec_free(ass_vec); |
| 1001 | talloc_free(mac_control_block); |
| 1002 | |
| 1003 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1004 | set_polling(new_poll_fn, ts); |
Jacob Erlbeck | f1a7b8f | 2016-02-01 20:59:04 +0100 | [diff] [blame] | 1005 | if (new_dl_tbf->state_is(GPRS_RLCMAC_ASSIGN)) |
| 1006 | new_dl_tbf->set_state(GPRS_RLCMAC_WAIT_ASSIGN); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1007 | dl_ass_state = GPRS_RLCMAC_DL_ASS_WAIT_ACK; |
Jacob Erlbeck | 16d29c7 | 2015-08-24 13:30:39 +0200 | [diff] [blame] | 1008 | LOGP(DRLCMACDL, LOGL_INFO, |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 1009 | "%s Scheduled DL Assignment polling on FN=%d, TS=%d\n", |
| 1010 | name(), poll_fn, poll_ts); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1011 | } else { |
| 1012 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 1013 | new_dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1014 | tbf_assign_control_ts(new_dl_tbf); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1015 | /* stop pending assignment timer */ |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1016 | new_dl_tbf->stop_timer(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1017 | |
| 1018 | } |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1019 | |
| 1020 | return msg; |
| 1021 | } |
| 1022 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1023 | 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] | 1024 | { |
| 1025 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1026 | struct gprs_rlcmac_ul_tbf *new_tbf = NULL; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1027 | int rc; |
| 1028 | unsigned int rrbp; |
| 1029 | uint32_t new_poll_fn; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1030 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1031 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1032 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1033 | LOGP(DRLCMACUL, LOGL_DEBUG, "Polling is already " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1034 | "scheduled for %s, so we must wait for the uplink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1035 | "assignment...\n", tbf_name(this)); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1036 | return NULL; |
| 1037 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1038 | |
| 1039 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1040 | if (rc < 0) |
| 1041 | return NULL; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1042 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1043 | if (ms()) |
| 1044 | new_tbf = ms()->ul_tbf(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1045 | if (!new_tbf) { |
| 1046 | LOGP(DRLCMACUL, LOGL_ERROR, "We have a schedule for uplink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1047 | "assignment at downlink %s, but there is no uplink " |
| 1048 | "TBF\n", tbf_name(this)); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1049 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1050 | return NULL; |
| 1051 | } |
| 1052 | |
| 1053 | msg = msgb_alloc(23, "rlcmac_ul_ass"); |
| 1054 | if (!msg) |
| 1055 | return NULL; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 1056 | 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] | 1057 | bitvec *ass_vec = bitvec_alloc(23); |
| 1058 | if (!ass_vec) { |
| 1059 | msgb_free(msg); |
| 1060 | return NULL; |
| 1061 | } |
| 1062 | bitvec_unhex(ass_vec, |
| 1063 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1064 | Encoding::write_packet_uplink_assignment(bts_data(), ass_vec, m_tfi, |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1065 | (direction == GPRS_RLCMAC_DL_TBF), tlli(), |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1066 | is_tlli_valid(), new_tbf, 1, rrbp, bts_data()->alpha, |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 1067 | bts_data()->gamma, -1, is_egprs_enabled()); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1068 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1069 | RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)talloc_zero(tall_pcu_ctx, RlcMacDownlink_t); |
| 1070 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++\n"); |
| 1071 | decode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 1072 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 1073 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Uplink Assignment -------------------------\n"); |
| 1074 | bitvec_free(ass_vec); |
| 1075 | talloc_free(mac_control_block); |
| 1076 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1077 | set_polling(new_poll_fn, ts); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1078 | ul_ass_state = GPRS_RLCMAC_UL_ASS_WAIT_ACK; |
Jacob Erlbeck | f1a7b8f | 2016-02-01 20:59:04 +0100 | [diff] [blame] | 1079 | if (new_tbf->state_is(GPRS_RLCMAC_ASSIGN)) |
| 1080 | new_tbf->set_state(GPRS_RLCMAC_WAIT_ASSIGN); |
Jacob Erlbeck | 16d29c7 | 2015-08-24 13:30:39 +0200 | [diff] [blame] | 1081 | LOGP(DRLCMACDL, LOGL_INFO, |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 1082 | "%s Scheduled UL Assignment polling on FN=%d, TS=%d\n", |
| 1083 | name(), poll_fn, poll_ts); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1084 | |
| 1085 | return msg; |
| 1086 | } |
| 1087 | |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1088 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_trx *trx) |
| 1089 | { |
Jacob Erlbeck | 3a10dbd | 2015-07-10 19:52:37 +0200 | [diff] [blame] | 1090 | for (uint8_t ts = 0; ts < 8; ts++) |
| 1091 | free_all(&trx->pdch[ts]); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1092 | } |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1093 | |
| 1094 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_pdch *pdch) |
| 1095 | { |
| 1096 | for (uint8_t tfi = 0; tfi < 32; tfi++) { |
| 1097 | struct gprs_rlcmac_tbf *tbf; |
| 1098 | |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1099 | tbf = pdch->ul_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1100 | if (tbf) |
| 1101 | tbf_free(tbf); |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1102 | tbf = pdch->dl_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1103 | if (tbf) |
| 1104 | tbf_free(tbf); |
| 1105 | } |
| 1106 | } |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1107 | |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1108 | int gprs_rlcmac_tbf::establish_dl_tbf_on_pacch() |
| 1109 | { |
| 1110 | struct gprs_rlcmac_dl_tbf *new_tbf = NULL; |
| 1111 | |
| 1112 | bts->tbf_reused(); |
| 1113 | |
| 1114 | new_tbf = tbf_alloc_dl_tbf(bts->bts_data(), ms(), |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1115 | this->trx->trx_no, ms_class(), |
| 1116 | ms() ? ms()->egprs_ms_class() : 0, 0); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1117 | |
| 1118 | if (!new_tbf) { |
| 1119 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
| 1120 | return -1; |
| 1121 | } |
| 1122 | |
| 1123 | LOGP(DRLCMAC, LOGL_DEBUG, "%s Trigger downlink assignment on PACCH\n", |
| 1124 | tbf_name(this)); |
| 1125 | bts->trigger_dl_ass(new_tbf, this); |
| 1126 | |
| 1127 | return 0; |
| 1128 | } |
| 1129 | |
Jacob Erlbeck | e8f5fe5 | 2015-12-14 13:23:15 +0100 | [diff] [blame] | 1130 | 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] | 1131 | { |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1132 | struct gprs_rlcmac_tbf *dl_tbf = NULL; |
| 1133 | struct gprs_rlcmac_tbf *ul_tbf = NULL; |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1134 | GprsMs *old_ms; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1135 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1136 | OSMO_ASSERT(direction == GPRS_RLCMAC_UL_TBF); |
| 1137 | |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1138 | old_ms = bts->ms_by_tlli(new_tlli); |
Jacob Erlbeck | 9659d59 | 2015-09-01 11:06:14 +0200 | [diff] [blame] | 1139 | /* Keep the old MS object for the update_ms() */ |
| 1140 | GprsMs::Guard guard(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1141 | if (old_ms) { |
| 1142 | /* Get them before calling set_ms() */ |
| 1143 | dl_tbf = old_ms->dl_tbf(); |
| 1144 | ul_tbf = old_ms->ul_tbf(); |
| 1145 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1146 | if (!ms()) |
| 1147 | set_ms(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1148 | } |
| 1149 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1150 | if (dl_tbf && dl_tbf->ms() != ms()) { |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1151 | LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from " |
| 1152 | "TLLI=0x%08x while %s still exists. " |
| 1153 | "Killing pending DL TBF\n", tlli(), |
| 1154 | tbf_name(dl_tbf)); |
| 1155 | tbf_free(dl_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1156 | dl_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1157 | } |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1158 | if (ul_tbf && ul_tbf->ms() != ms()) { |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1159 | LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from " |
| 1160 | "TLLI=0x%08x while %s still exists. " |
| 1161 | "Killing pending UL TBF\n", tlli(), |
| 1162 | tbf_name(ul_tbf)); |
| 1163 | tbf_free(ul_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1164 | ul_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1165 | } |
Jacob Erlbeck | 5f93f85 | 2016-01-21 20:48:39 +0100 | [diff] [blame] | 1166 | |
| 1167 | /* The TLLI has been taken from an UL message */ |
| 1168 | update_ms(new_tlli, GPRS_RLCMAC_UL_TBF); |
| 1169 | |
| 1170 | #if 0 /* REMOVEME ??? */ |
| 1171 | if (ms()->need_dl_tbf()) |
| 1172 | establish_dl_tbf_on_pacch(); |
| 1173 | #endif |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1174 | return 1; |
| 1175 | } |
| 1176 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1177 | const char *tbf_name(gprs_rlcmac_tbf *tbf) |
| 1178 | { |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1179 | return tbf->name(); |
| 1180 | } |
| 1181 | |
| 1182 | const char *gprs_rlcmac_tbf::name() const |
| 1183 | { |
Jacob Erlbeck | 7bf9f49 | 2015-06-11 12:45:47 +0200 | [diff] [blame] | 1184 | if (this == NULL) |
| 1185 | return "(no TBF)"; |
| 1186 | |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1187 | snprintf(m_name_buf, sizeof(m_name_buf) - 1, |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1188 | "TBF(TFI=%d TLLI=0x%08x DIR=%s STATE=%s%s)", |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1189 | m_tfi, tlli(), |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1190 | direction == GPRS_RLCMAC_UL_TBF ? "UL" : "DL", |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1191 | state_name(), |
| 1192 | is_egprs_enabled() ? " EGPRS" : "" |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1193 | ); |
| 1194 | m_name_buf[sizeof(m_name_buf) - 1] = '\0'; |
| 1195 | return m_name_buf; |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1196 | } |
Holger Hans Peter Freyther | 758dc12 | 2013-11-06 20:39:45 +0100 | [diff] [blame] | 1197 | |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1198 | void gprs_rlcmac_tbf::rotate_in_list() |
| 1199 | { |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1200 | llist_del(&list()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1201 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1202 | llist_add(&list(), &bts->ul_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1203 | else |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1204 | llist_add(&list(), &bts->dl_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1205 | } |
Holger Hans Peter Freyther | 8f399de | 2013-12-25 20:22:35 +0100 | [diff] [blame] | 1206 | |
| 1207 | uint8_t gprs_rlcmac_tbf::tsc() const |
| 1208 | { |
| 1209 | return trx->pdch[first_ts].tsc; |
| 1210 | } |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 1211 | |
Jacob Erlbeck | 617c712 | 2015-06-30 09:18:30 +0200 | [diff] [blame] | 1212 | uint8_t gprs_rlcmac_tbf::dl_slots() const |
| 1213 | { |
| 1214 | uint8_t slots = 0; |
| 1215 | size_t i; |
| 1216 | |
| 1217 | if (direction == GPRS_RLCMAC_UL_TBF) |
| 1218 | return 0; |
| 1219 | |
| 1220 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1221 | if (pdch[i]) |
| 1222 | slots |= 1 << i; |
| 1223 | |
| 1224 | return slots; |
| 1225 | } |
| 1226 | |
| 1227 | uint8_t gprs_rlcmac_tbf::ul_slots() const |
| 1228 | { |
| 1229 | uint8_t slots = 0; |
| 1230 | size_t i; |
| 1231 | |
| 1232 | if (direction == GPRS_RLCMAC_DL_TBF) { |
| 1233 | if (control_ts < 8) |
| 1234 | slots |= 1 << control_ts; |
| 1235 | if (first_common_ts < 8) |
| 1236 | slots |= 1 << first_common_ts; |
| 1237 | |
| 1238 | return slots; |
| 1239 | } |
| 1240 | |
| 1241 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1242 | if (pdch[i]) |
| 1243 | slots |= 1 << i; |
| 1244 | |
| 1245 | return slots; |
| 1246 | } |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1247 | |
| 1248 | bool gprs_rlcmac_tbf::is_control_ts(uint8_t ts) const |
| 1249 | { |
| 1250 | return ts == control_ts; |
| 1251 | } |