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 | |
Pau Espin Pedrol | a0cbde7 | 2020-03-26 15:56:15 +0100 | [diff] [blame] | 22 | #include <new> |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 23 | #include <sstream> |
Pau Espin Pedrol | a0cbde7 | 2020-03-26 15:56:15 +0100 | [diff] [blame] | 24 | |
Holger Hans Peter Freyther | 67ed34e | 2013-10-17 17:01:54 +0200 | [diff] [blame] | 25 | #include <bts.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 26 | #include <tbf.h> |
Pau Espin Pedrol | 9d1cdb1 | 2019-09-25 17:47:02 +0200 | [diff] [blame] | 27 | #include <tbf_dl.h> |
| 28 | #include <tbf_ul.h> |
Holger Hans Peter Freyther | d11290b | 2013-10-26 17:32:04 +0200 | [diff] [blame] | 29 | #include <rlc.h> |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 30 | #include <encoding.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 31 | #include <gprs_rlcmac.h> |
| 32 | #include <gprs_debug.h> |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 33 | #include <gprs_ms.h> |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 34 | #include <pcu_utils.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 35 | #include <gprs_ms_storage.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 36 | #include <sba.h> |
Max | 1187a77 | 2018-01-26 13:31:42 +0100 | [diff] [blame] | 37 | #include <gsm_timer.h> |
Max | 6dc90b8 | 2018-02-19 17:17:28 +0100 | [diff] [blame] | 38 | #include <pdch.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 39 | |
| 40 | extern "C" { |
| 41 | #include <osmocom/core/msgb.h> |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 42 | #include <osmocom/core/utils.h> |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 43 | #include <osmocom/core/talloc.h> |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 44 | #include <osmocom/core/stats.h> |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 45 | #include <osmocom/core/logging.h> |
Stefan Sperling | f0f7df1 | 2018-05-25 15:12:30 +0200 | [diff] [blame] | 46 | #include <osmocom/core/timer_compat.h> |
Pau Espin Pedrol | 980ef1e | 2020-03-26 15:06:11 +0100 | [diff] [blame] | 47 | #include <osmocom/core/bitvec.h> |
| 48 | #include <osmocom/core/rate_ctr.h> |
| 49 | #include <osmocom/gsm/protocol/gsm_04_08.h> |
Pau Espin Pedrol | b2653fe | 2020-03-26 15:14:01 +0100 | [diff] [blame] | 50 | |
| 51 | #include "gsm_rlcmac.h" |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 52 | #include "coding_scheme.h" |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 53 | } |
| 54 | |
| 55 | #include <errno.h> |
| 56 | #include <string.h> |
| 57 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 58 | extern void *tall_pcu_ctx; |
| 59 | |
Pau Espin Pedrol | 442198c | 2020-10-23 22:30:04 +0200 | [diff] [blame] | 60 | unsigned int next_tbf_ctr_group_id = 0; /* Incrementing group id */ |
Pau Espin Pedrol | 0926901 | 2018-07-10 15:44:47 +0200 | [diff] [blame] | 61 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 62 | static void tbf_timer_cb(void *_tbf); |
| 63 | |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame] | 64 | const struct value_string gprs_rlcmac_tbf_poll_state_names[] = { |
| 65 | OSMO_VALUE_STRING(GPRS_RLCMAC_POLL_NONE), |
| 66 | OSMO_VALUE_STRING(GPRS_RLCMAC_POLL_SCHED), /* a polling was scheduled */ |
| 67 | { 0, NULL } |
| 68 | }; |
| 69 | |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 70 | const struct value_string gprs_rlcmac_tbf_dl_ass_state_names[] = { |
| 71 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_NONE), |
| 72 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_SEND_ASS), |
| 73 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_WAIT_ACK), |
| 74 | { 0, NULL } |
| 75 | }; |
| 76 | |
| 77 | const struct value_string gprs_rlcmac_tbf_ul_ass_state_names[] = { |
| 78 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_NONE), |
| 79 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_SEND_ASS), |
| 80 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ), |
| 81 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_WAIT_ACK), |
| 82 | { 0, NULL } |
| 83 | }; |
| 84 | |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 85 | const struct value_string gprs_rlcmac_tbf_ul_ack_state_names[] = { |
| 86 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ACK_NONE), |
| 87 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ACK_SEND_ACK), /* send acknowledge on next RTS */ |
| 88 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ACK_WAIT_ACK), /* wait for PACKET CONTROL ACK */ |
| 89 | { 0, NULL } |
| 90 | }; |
| 91 | |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 92 | static const struct value_string tbf_counters_names[] = { |
| 93 | OSMO_VALUE_STRING(N3101), |
| 94 | OSMO_VALUE_STRING(N3103), |
| 95 | OSMO_VALUE_STRING(N3105), |
| 96 | { 0, NULL } |
| 97 | }; |
| 98 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 99 | static const struct value_string tbf_timers_names[] = { |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 100 | OSMO_VALUE_STRING(T0), |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 101 | OSMO_VALUE_STRING(T3169), |
| 102 | OSMO_VALUE_STRING(T3191), |
| 103 | OSMO_VALUE_STRING(T3193), |
| 104 | OSMO_VALUE_STRING(T3195), |
| 105 | { 0, NULL } |
| 106 | }; |
| 107 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 108 | static const struct rate_ctr_desc tbf_ctr_description[] = { |
Pau Espin Pedrol | 218ee98 | 2018-07-10 15:16:49 +0200 | [diff] [blame] | 109 | { "rlc:nacked", "RLC Nacked " }, |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 110 | }; |
| 111 | |
Pau Espin Pedrol | 442198c | 2020-10-23 22:30:04 +0200 | [diff] [blame] | 112 | const struct rate_ctr_group_desc tbf_ctrg_desc = { |
Pau Espin Pedrol | 218ee98 | 2018-07-10 15:16:49 +0200 | [diff] [blame] | 113 | "pcu:tbf", |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 114 | "TBF Statistics", |
| 115 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 116 | ARRAY_SIZE(tbf_ctr_description), |
| 117 | tbf_ctr_description, |
| 118 | }; |
| 119 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 120 | gprs_rlcmac_tbf::Meas::Meas() : |
| 121 | rssi_sum(0), |
| 122 | rssi_num(0) |
| 123 | { |
Stefan Sperling | f0f7df1 | 2018-05-25 15:12:30 +0200 | [diff] [blame] | 124 | timespecclear(&rssi_tv); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 125 | } |
| 126 | |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 127 | gprs_rlcmac_tbf::gprs_rlcmac_tbf(BTS *bts_, GprsMs *ms, gprs_rlcmac_tbf_direction dir) : |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 128 | state_flags(0), |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 129 | direction(dir), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 130 | trx(NULL), |
| 131 | first_ts(0), |
| 132 | first_common_ts(0), |
| 133 | control_ts(0xff), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 134 | poll_fn(0), |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 135 | poll_ts(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 136 | fT(0), |
| 137 | num_fT_exp(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 138 | was_releasing(0), |
| 139 | upgrade_to_multislot(0), |
| 140 | bts(bts_), |
| 141 | m_tfi(0), |
| 142 | m_created_ts(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 143 | m_ctrs(NULL), |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 144 | m_ms(ms), |
Max | 5081806 | 2017-12-06 13:35:08 +0100 | [diff] [blame] | 145 | state(GPRS_RLCMAC_NULL), |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 146 | dl_ass_state(GPRS_RLCMAC_DL_ASS_NONE), |
| 147 | ul_ass_state(GPRS_RLCMAC_UL_ASS_NONE), |
Max | 088c7df | 2018-01-23 20:16:23 +0100 | [diff] [blame] | 148 | ul_ack_state(GPRS_RLCMAC_UL_ACK_NONE), |
Max | cac6b66 | 2018-01-24 11:00:17 +0100 | [diff] [blame] | 149 | poll_state(GPRS_RLCMAC_POLL_NONE), |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 150 | m_list(this), |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 151 | m_ms_list(this), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 152 | m_egprs_enabled(false) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 153 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 154 | /* The classes of these members do not have proper constructors yet. |
| 155 | * Just set them to 0 like talloc_zero did */ |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 156 | memset(&pdch, 0, sizeof(pdch)); |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 157 | memset(&Tarr, 0, sizeof(Tarr)); |
| 158 | memset(&Narr, 0, sizeof(Narr)); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 159 | memset(&gsm_timer, 0, sizeof(gsm_timer)); |
| 160 | |
Pau Espin Pedrol | 0b0748a | 2018-05-16 15:20:39 +0200 | [diff] [blame] | 161 | m_rlc.init(); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 162 | m_llc.init(); |
| 163 | |
| 164 | m_name_buf[0] = '\0'; |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 165 | } |
| 166 | |
Daniel Willmann | ca102af | 2014-08-08 12:14:12 +0200 | [diff] [blame] | 167 | gprs_rlcmac_bts *gprs_rlcmac_tbf::bts_data() const |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 168 | { |
| 169 | return bts->bts_data(); |
| 170 | } |
| 171 | |
Jacob Erlbeck | 8759735 | 2015-05-18 11:56:50 +0200 | [diff] [blame] | 172 | uint32_t gprs_rlcmac_tbf::tlli() const |
| 173 | { |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 174 | return m_ms ? m_ms->tlli() : 0; |
Jacob Erlbeck | 8759735 | 2015-05-18 11:56:50 +0200 | [diff] [blame] | 175 | } |
| 176 | |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 177 | const char *gprs_rlcmac_tbf::imsi() const |
Holger Hans Peter Freyther | d868928 | 2013-08-24 20:51:06 +0200 | [diff] [blame] | 178 | { |
Pau Espin Pedrol | 528820d | 2020-10-26 12:40:11 +0100 | [diff] [blame] | 179 | return m_ms->imsi(); |
Holger Hans Peter Freyther | d868928 | 2013-08-24 20:51:06 +0200 | [diff] [blame] | 180 | } |
| 181 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 182 | uint8_t gprs_rlcmac_tbf::ta() const |
| 183 | { |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 184 | return m_ms->ta(); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | void gprs_rlcmac_tbf::set_ta(uint8_t ta) |
| 188 | { |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 189 | ms()->set_ta(ta); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 190 | } |
| 191 | |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 192 | uint8_t gprs_rlcmac_tbf::ms_class() const |
| 193 | { |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 194 | return m_ms->ms_class(); |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 195 | } |
| 196 | |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 197 | enum CodingScheme gprs_rlcmac_tbf::current_cs() const |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 198 | { |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 199 | enum CodingScheme cs; |
| 200 | |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 201 | if (direction == GPRS_RLCMAC_UL_TBF) |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 202 | cs = m_ms ? m_ms->current_cs_ul() : UNKNOWN; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 203 | else |
Pau Espin Pedrol | 2ae8337 | 2020-05-18 11:35:35 +0200 | [diff] [blame] | 204 | cs = m_ms ? m_ms->current_cs_dl() : UNKNOWN; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 205 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 206 | return cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 207 | } |
| 208 | |
Jacob Erlbeck | 489a2b3 | 2015-05-28 19:07:01 +0200 | [diff] [blame] | 209 | gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() |
| 210 | { |
| 211 | return m_ms ? m_ms->llc_queue() : NULL; |
| 212 | } |
| 213 | |
| 214 | const gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() const |
| 215 | { |
| 216 | return m_ms ? m_ms->llc_queue() : NULL; |
| 217 | } |
| 218 | |
Max | 869c0c2 | 2018-01-03 12:00:36 +0100 | [diff] [blame] | 219 | size_t gprs_rlcmac_tbf::llc_queue_size() const |
Alexander Couzens | d38b92e | 2016-08-21 19:38:30 +0200 | [diff] [blame] | 220 | { |
| 221 | /* m_ms->llc_queue() never returns NULL: GprsMs::m_llc_queue is a |
| 222 | * member instance. */ |
| 223 | return m_ms ? m_ms->llc_queue()->size() : 0; |
| 224 | } |
| 225 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 226 | void gprs_rlcmac_tbf::set_ms(GprsMs *ms) |
| 227 | { |
| 228 | if (m_ms == ms) |
| 229 | return; |
| 230 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 231 | if (m_ms) { |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 232 | m_ms->detach_tbf(this); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 233 | } |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 234 | |
| 235 | m_ms = ms; |
| 236 | |
| 237 | if (m_ms) |
| 238 | m_ms->attach_tbf(this); |
| 239 | } |
| 240 | |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 241 | 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] | 242 | { |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 243 | if (!tlli) |
| 244 | return; |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 245 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 246 | /* TODO: When the TLLI does not match the ms, check if there is another |
| 247 | * MS object that belongs to that TLLI and if yes make sure one of them |
| 248 | * gets deleted. This is the same problem that can arise with |
Pau Espin Pedrol | 528820d | 2020-10-26 12:40:11 +0100 | [diff] [blame] | 249 | * IMSI in gprs_rlcmac_dl_tbf::handle() so there should be a unified solution */ |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 250 | if (!ms()->check_tlli(tlli)) { |
| 251 | GprsMs *old_ms; |
| 252 | |
| 253 | old_ms = bts->ms_store().get_ms(tlli, 0, NULL); |
| 254 | if (old_ms) |
Pau Espin Pedrol | 528820d | 2020-10-26 12:40:11 +0100 | [diff] [blame] | 255 | ms()->merge_and_clear_ms(old_ms); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 256 | } |
| 257 | |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 258 | if (dir == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 259 | ms()->set_tlli(tlli); |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 260 | else |
| 261 | ms()->confirm_tlli(tlli); |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 262 | } |
| 263 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 264 | static void tbf_unlink_pdch(struct gprs_rlcmac_tbf *tbf) |
| 265 | { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 266 | int ts; |
| 267 | |
Jacob Erlbeck | ccc34e4 | 2015-06-29 13:45:05 +0200 | [diff] [blame] | 268 | for (ts = 0; ts < 8; ts++) { |
| 269 | if (!tbf->pdch[ts]) |
| 270 | continue; |
| 271 | |
| 272 | tbf->pdch[ts]->detach_tbf(tbf); |
| 273 | tbf->pdch[ts] = NULL; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 274 | } |
| 275 | } |
| 276 | |
| 277 | void tbf_free(struct gprs_rlcmac_tbf *tbf) |
| 278 | { |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 279 | /* update counters */ |
| 280 | if (tbf->direction == GPRS_RLCMAC_UL_TBF) { |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 281 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(tbf); |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 282 | tbf->bts->do_rate_ctr_inc(CTR_TBF_UL_FREED); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 283 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 284 | tbf->bts->do_rate_ctr_inc(CTR_TBF_UL_ABORTED); |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 285 | rate_ctr_group_free(ul_tbf->m_ul_egprs_ctrs); |
| 286 | rate_ctr_group_free(ul_tbf->m_ul_gprs_ctrs); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 287 | } else { |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 288 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
| 289 | if (tbf->is_egprs_enabled()) { |
| 290 | rate_ctr_group_free(dl_tbf->m_dl_egprs_ctrs); |
| 291 | } else { |
| 292 | rate_ctr_group_free(dl_tbf->m_dl_gprs_ctrs); |
| 293 | } |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 294 | tbf->bts->do_rate_ctr_inc(CTR_TBF_DL_FREED); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 295 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 296 | tbf->bts->do_rate_ctr_inc(CTR_TBF_DL_ABORTED); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 297 | } |
| 298 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 299 | /* Give final measurement report */ |
| 300 | gprs_rlcmac_rssi_rep(tbf); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 301 | if (tbf->direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 302 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
Jacob Erlbeck | f04a5b3 | 2016-01-21 20:42:40 +0100 | [diff] [blame] | 303 | |
| 304 | dl_tbf->abort(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 305 | dl_tbf->cleanup(); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 306 | } |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 307 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 308 | LOGPTBF(tbf, LOGL_INFO, "free\n"); |
Max | 0e59980 | 2018-01-23 20:09:06 +0100 | [diff] [blame] | 309 | tbf->check_pending_ass(); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 310 | tbf->stop_timers("freeing TBF"); |
Max | 5a6bcfb | 2017-09-01 14:36:44 +0200 | [diff] [blame] | 311 | /* TODO: Could/Should generate bssgp_tx_llc_discarded */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 312 | tbf_unlink_pdch(tbf); |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 313 | llist_del(&tbf->list()); |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 314 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 315 | if (tbf->ms()) |
| 316 | tbf->set_ms(NULL); |
| 317 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 318 | rate_ctr_group_free(tbf->m_ctrs); |
| 319 | |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 320 | LOGP(DTBF, LOGL_DEBUG, "********** %s-TBF ends here **********\n", |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 321 | (tbf->direction != GPRS_RLCMAC_UL_TBF) ? "DL" : "UL"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 322 | talloc_free(tbf); |
| 323 | } |
| 324 | |
Max | 9d7357e | 2017-12-14 15:02:33 +0100 | [diff] [blame] | 325 | uint16_t egprs_window_size(const struct gprs_rlcmac_bts *bts_data, uint8_t slots) |
| 326 | { |
| 327 | uint8_t num_pdch = pcu_bitcount(slots); |
| 328 | |
| 329 | return OSMO_MIN((num_pdch != 1) ? (128 * num_pdch) : 192, |
| 330 | OSMO_MAX(64, (bts_data->ws_base + num_pdch * bts_data->ws_pdch) / 32 * 32)); |
| 331 | } |
| 332 | |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 333 | int gprs_rlcmac_tbf::update() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 334 | { |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 335 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 336 | int rc; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 337 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 338 | if (direction != GPRS_RLCMAC_DL_TBF) |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 339 | return -EINVAL; |
| 340 | |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 341 | LOGP(DTBF, LOGL_DEBUG, "********** DL-TBF update **********\n"); |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 342 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 343 | tbf_unlink_pdch(this); |
Max | e9fe0e3 | 2017-09-28 15:56:05 +0200 | [diff] [blame] | 344 | rc = bts_data->alloc_algorithm(bts_data, ms(), this, false, -1); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 345 | /* if no resource */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 346 | if (rc < 0) { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 347 | LOGPTBF(this, LOGL_ERROR, "No resource after update???\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 348 | return -rc; |
| 349 | } |
| 350 | |
Aravind Sirsikar | 0ee31cf | 2016-09-15 17:54:46 +0530 | [diff] [blame] | 351 | if (is_egprs_enabled()) { |
| 352 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
| 353 | if (dl_tbf) |
Max | 9d7357e | 2017-12-14 15:02:33 +0100 | [diff] [blame] | 354 | dl_tbf->set_window_size(); |
Aravind Sirsikar | 0ee31cf | 2016-09-15 17:54:46 +0530 | [diff] [blame] | 355 | } |
| 356 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf) |
| 361 | { |
| 362 | if (tbf->control_ts == 0xff) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 363 | LOGPTBF(tbf, LOGL_INFO, "Setting Control TS %d\n", |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 364 | tbf->first_common_ts); |
| 365 | else if (tbf->control_ts != tbf->first_common_ts) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 366 | LOGPTBF(tbf, LOGL_INFO, "Changing Control TS %d\n", |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 367 | tbf->first_common_ts); |
| 368 | tbf->control_ts = tbf->first_common_ts; |
| 369 | |
| 370 | return 0; |
| 371 | } |
| 372 | |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 373 | const char *gprs_rlcmac_tbf::tbf_state_name[] = { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 374 | "NULL", |
| 375 | "ASSIGN", |
| 376 | "FLOW", |
| 377 | "FINISHED", |
| 378 | "WAIT RELEASE", |
| 379 | "RELEASING", |
| 380 | }; |
| 381 | |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 382 | void gprs_rlcmac_tbf::n_reset(enum tbf_counters n) |
| 383 | { |
| 384 | if (n >= N_MAX) { |
| 385 | LOGPTBF(this, LOGL_ERROR, "attempting to reset unknown counter %s\n", |
| 386 | get_value_string(tbf_counters_names, n)); |
| 387 | return; |
| 388 | } |
| 389 | |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 390 | Narr[n] = 0; |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | /* Increment counter and check for MAX value (return true if we hit it) */ |
| 394 | bool gprs_rlcmac_tbf::n_inc(enum tbf_counters n) |
| 395 | { |
| 396 | uint8_t chk; |
| 397 | |
| 398 | if (n >= N_MAX) { |
| 399 | LOGPTBF(this, LOGL_ERROR, "attempting to increment unknown counter %s\n", |
| 400 | get_value_string(tbf_counters_names, n)); |
| 401 | return true; |
| 402 | } |
| 403 | |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 404 | Narr[n]++; |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 405 | |
| 406 | switch(n) { |
| 407 | case N3101: |
| 408 | chk = bts->bts_data()->n3101; |
| 409 | break; |
| 410 | case N3103: |
| 411 | chk = bts->bts_data()->n3103; |
| 412 | break; |
| 413 | case N3105: |
| 414 | chk = bts->bts_data()->n3105; |
| 415 | break; |
| 416 | default: |
| 417 | LOGPTBF(this, LOGL_ERROR, "unhandled counter %s\n", |
| 418 | get_value_string(tbf_counters_names, n)); |
| 419 | return true; |
| 420 | } |
| 421 | |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 422 | if (Narr[n] == chk) { |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 423 | LOGPTBF(this, LOGL_NOTICE, "%s exceeded MAX (%u)\n", |
| 424 | get_value_string(tbf_counters_names, n), chk); |
| 425 | return true; |
| 426 | } |
| 427 | |
| 428 | return false; |
| 429 | } |
| 430 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 431 | void gprs_rlcmac_tbf::t_stop(enum tbf_timers t, const char *reason) |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 432 | { |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 433 | if (t >= T_MAX) { |
| 434 | LOGPTBF(this, LOGL_ERROR, "attempting to stop unknown timer %s [%s]\n", |
| 435 | get_value_string(tbf_timers_names, t), reason); |
Max | 0bc982e | 2017-12-21 18:58:50 +0100 | [diff] [blame] | 436 | return; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 437 | } |
| 438 | |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 439 | if (osmo_timer_pending(&Tarr[t])) { |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 440 | LOGPTBF(this, LOGL_DEBUG, "stopping timer %s [%s]\n", |
| 441 | get_value_string(tbf_timers_names, t), reason); |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 442 | osmo_timer_del(&Tarr[t]); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 443 | } |
| 444 | } |
| 445 | |
| 446 | /* check if any of T31xx timer(s) are pending */ |
| 447 | bool gprs_rlcmac_tbf::timers_pending(enum tbf_timers t) |
| 448 | { |
| 449 | uint8_t i; |
| 450 | |
| 451 | if (t != T_MAX) |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 452 | return osmo_timer_pending(&Tarr[t]); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 453 | |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 454 | /* we don't start with T0 because it's internal timer which requires special handling */ |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 455 | for (i = T3169; i < T_MAX; i++) |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 456 | if (osmo_timer_pending(&Tarr[i])) |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 457 | return true; |
| 458 | |
| 459 | return false; |
| 460 | } |
| 461 | |
| 462 | void gprs_rlcmac_tbf::stop_timers(const char *reason) |
| 463 | { |
| 464 | uint8_t i; |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 465 | /* we start with T0 because timer reset does not require any special handling */ |
| 466 | for (i = T0; i < T_MAX; i++) |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 467 | t_stop((enum tbf_timers)i, reason); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 468 | } |
| 469 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 470 | static inline void tbf_timeout_free(struct gprs_rlcmac_tbf *tbf, enum tbf_timers t, bool run_diag) |
| 471 | { |
| 472 | LOGPTBF(tbf, LOGL_NOTICE, "%s timeout expired, freeing TBF\n", |
| 473 | get_value_string(tbf_timers_names, t)); |
| 474 | |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 475 | if (run_diag) { |
| 476 | LOGPTBF(tbf, LOGL_NOTICE, "%s timeout expired, freeing TBF: %s\n", |
| 477 | get_value_string(tbf_timers_names, t), tbf->rlcmac_diag().c_str()); |
| 478 | } else { |
| 479 | LOGPTBF(tbf, LOGL_NOTICE, "%s timeout expired, freeing TBF\n", |
| 480 | get_value_string(tbf_timers_names, t)); |
| 481 | } |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 482 | |
| 483 | tbf_free(tbf); |
| 484 | } |
| 485 | |
| 486 | #define T_CBACK(t, diag) static void cb_##t(void *_tbf) { tbf_timeout_free((struct gprs_rlcmac_tbf *)_tbf, t, diag); } |
| 487 | |
| 488 | T_CBACK(T3169, true) |
| 489 | T_CBACK(T3191, true) |
| 490 | T_CBACK(T3193, false) |
| 491 | T_CBACK(T3195, true) |
| 492 | |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 493 | void gprs_rlcmac_tbf::t_start(enum tbf_timers t, int T, const char *reason, bool force, |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 494 | const char *file, unsigned line) |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 495 | { |
Philipp Maier | 33c52b6 | 2018-04-10 14:21:11 +0200 | [diff] [blame] | 496 | int current_fn = get_current_fn(); |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 497 | int sec; |
| 498 | int microsec; |
| 499 | struct osmo_tdef *tdef; |
Philipp Maier | 33c52b6 | 2018-04-10 14:21:11 +0200 | [diff] [blame] | 500 | |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 501 | if (!(tdef = osmo_tdef_get_entry(bts->bts_data()->T_defs_bts, T))) |
| 502 | tdef = osmo_tdef_get_entry(bts->bts_data()->T_defs_pcu, T); |
| 503 | |
| 504 | if (t >= T_MAX || !tdef) { |
Philipp Maier | 33c52b6 | 2018-04-10 14:21:11 +0200 | [diff] [blame] | 505 | LOGPSRC(DTBF, LOGL_ERROR, file, line, "%s attempting to start unknown timer %s [%s], cur_fn=%d\n", |
| 506 | tbf_name(this), get_value_string(tbf_timers_names, t), reason, current_fn); |
Max | 0bc982e | 2017-12-21 18:58:50 +0100 | [diff] [blame] | 507 | return; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 508 | } |
| 509 | |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 510 | if (!force && osmo_timer_pending(&Tarr[t])) |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 511 | return; |
| 512 | |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 513 | switch (tdef->unit) { |
| 514 | case OSMO_TDEF_MS: |
| 515 | sec = 0; |
| 516 | microsec = tdef->val * 1000; |
| 517 | break; |
| 518 | case OSMO_TDEF_S: |
| 519 | sec = tdef->val; |
| 520 | microsec = 0; |
| 521 | break; |
| 522 | default: |
| 523 | /* so far only timers using MS and S */ |
| 524 | OSMO_ASSERT(false); |
| 525 | } |
| 526 | |
Philipp Maier | 33c52b6 | 2018-04-10 14:21:11 +0200 | [diff] [blame] | 527 | LOGPSRC(DTBF, LOGL_DEBUG, file, line, "%s %sstarting timer %s [%s] with %u sec. %u microsec, cur_fn=%d\n", |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 528 | tbf_name(this), osmo_timer_pending(&Tarr[t]) ? "re" : "", |
Philipp Maier | 33c52b6 | 2018-04-10 14:21:11 +0200 | [diff] [blame] | 529 | get_value_string(tbf_timers_names, t), reason, sec, microsec, current_fn); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 530 | |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 531 | Tarr[t].data = this; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 532 | |
| 533 | switch(t) { |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 534 | case T0: |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 535 | Tarr[t].cb = tbf_timer_cb; |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 536 | break; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 537 | case T3169: |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 538 | Tarr[t].cb = cb_T3169; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 539 | break; |
| 540 | case T3191: |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 541 | Tarr[t].cb = cb_T3191; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 542 | break; |
| 543 | case T3193: |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 544 | Tarr[t].cb = cb_T3193; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 545 | break; |
| 546 | case T3195: |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 547 | Tarr[t].cb = cb_T3195; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 548 | break; |
| 549 | default: |
Philipp Maier | 33c52b6 | 2018-04-10 14:21:11 +0200 | [diff] [blame] | 550 | LOGPSRC(DTBF, LOGL_ERROR, file, line, "%s attempting to set callback for unknown timer %s [%s], cur_fn=%d\n", |
| 551 | tbf_name(this), get_value_string(tbf_timers_names, t), reason, current_fn); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 552 | } |
| 553 | |
Pau Espin Pedrol | ef1fe58 | 2019-09-05 14:40:24 +0200 | [diff] [blame] | 554 | osmo_timer_schedule(&Tarr[t], sec, microsec); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 555 | } |
| 556 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 557 | int gprs_rlcmac_tbf::check_polling(uint32_t fn, uint8_t ts, |
| 558 | uint32_t *poll_fn_, unsigned int *rrbp_) |
| 559 | { |
Max | 9dabfa2 | 2017-05-16 16:10:45 +0200 | [diff] [blame] | 560 | uint32_t new_poll_fn = next_fn(fn, 13); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 561 | |
| 562 | if (!is_control_ts(ts)) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 563 | LOGPTBF(this, LOGL_DEBUG, "Polling cannot be " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 564 | "scheduled in this TS %d (first control TS %d)\n", |
| 565 | ts, control_ts); |
| 566 | return -EINVAL; |
| 567 | } |
| 568 | if (poll_state != GPRS_RLCMAC_POLL_NONE) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 569 | LOGPTBF(this, LOGL_DEBUG, "Polling is already scheduled\n"); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 570 | return -EBUSY; |
| 571 | } |
Max | 9dabfa2 | 2017-05-16 16:10:45 +0200 | [diff] [blame] | 572 | if (bts->sba()->find(trx->trx_no, ts, next_fn(fn, 13))) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 573 | LOGPTBF(this, LOGL_DEBUG, "Polling is already scheduled " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 574 | "for single block allocation at FN %d TS %d ...\n", |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 575 | new_poll_fn, ts); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 576 | return -EBUSY; |
| 577 | } |
| 578 | |
| 579 | *poll_fn_ = new_poll_fn; |
| 580 | *rrbp_ = 0; |
| 581 | |
| 582 | return 0; |
| 583 | } |
| 584 | |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 585 | void gprs_rlcmac_tbf::set_polling(uint32_t new_poll_fn, uint8_t ts, enum gprs_rlcmac_tbf_poll_type t) |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 586 | { |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 587 | const char *chan = "UNKNOWN"; |
| 588 | |
| 589 | if (state_flags & (1 << (GPRS_RLCMAC_FLAG_CCCH))) |
| 590 | chan = "CCCH"; |
| 591 | |
| 592 | if (state_flags & (1 << (GPRS_RLCMAC_FLAG_PACCH))) |
| 593 | chan = "PACCH"; |
| 594 | |
| 595 | if ((state_flags & (1 << (GPRS_RLCMAC_FLAG_PACCH))) && (state_flags & (1 << (GPRS_RLCMAC_FLAG_CCCH)))) |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 596 | LOGPTBFDL(this, LOGL_ERROR, |
| 597 | "Attempt to schedule polling on %s (FN=%d, TS=%d) with both CCCH and PACCH flags set - FIXME!\n", |
| 598 | chan, poll_fn, poll_ts); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 599 | |
| 600 | /* schedule polling */ |
| 601 | poll_state = GPRS_RLCMAC_POLL_SCHED; |
| 602 | poll_fn = new_poll_fn; |
| 603 | poll_ts = ts; |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 604 | |
| 605 | switch (t) { |
| 606 | case GPRS_RLCMAC_POLL_UL_ASS: |
| 607 | ul_ass_state = GPRS_RLCMAC_UL_ASS_WAIT_ACK; |
| 608 | |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 609 | LOGPTBFDL(this, LOGL_INFO, "Scheduled UL Assignment polling on %s (FN=%d, TS=%d)\n", |
| 610 | chan, poll_fn, poll_ts); |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 611 | break; |
| 612 | case GPRS_RLCMAC_POLL_DL_ASS: |
| 613 | dl_ass_state = GPRS_RLCMAC_DL_ASS_WAIT_ACK; |
| 614 | |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 615 | LOGPTBFDL(this, LOGL_INFO, "Scheduled DL Assignment polling on %s (FN=%d, TS=%d)\n", |
| 616 | chan, poll_fn, poll_ts); |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 617 | break; |
| 618 | case GPRS_RLCMAC_POLL_UL_ACK: |
| 619 | ul_ack_state = GPRS_RLCMAC_UL_ACK_WAIT_ACK; |
| 620 | |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 621 | LOGPTBFUL(this, LOGL_DEBUG, "Scheduled UL Acknowledgement polling on %s (FN=%d, TS=%d)\n", |
| 622 | chan, poll_fn, poll_ts); |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 623 | break; |
| 624 | case GPRS_RLCMAC_POLL_DL_ACK: |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 625 | LOGPTBFDL(this, LOGL_DEBUG, "Scheduled DL Acknowledgement polling on %s (FN=%d, TS=%d)\n", |
| 626 | chan, poll_fn, poll_ts); |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 627 | break; |
| 628 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 629 | } |
| 630 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 631 | void gprs_rlcmac_tbf::poll_timeout() |
| 632 | { |
Pau Espin Pedrol | d7c3265 | 2019-12-23 12:41:34 +0100 | [diff] [blame] | 633 | uint16_t pgroup; |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 634 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
| 635 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 636 | LOGPTBF(this, LOGL_NOTICE, "poll timeout for FN=%d, TS=%d (curr FN %d)\n", |
| 637 | poll_fn, poll_ts, bts->current_frame_number()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 638 | |
| 639 | poll_state = GPRS_RLCMAC_POLL_NONE; |
| 640 | |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 641 | if (n_inc(N3101)) { |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 642 | TBF_SET_STATE(this, GPRS_RLCMAC_RELEASING); |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 643 | T_START(this, T3169, 3169, "MAX N3101 reached", false); |
Max | 59e4a4f | 2017-12-20 18:01:55 +0100 | [diff] [blame] | 644 | return; |
| 645 | } |
| 646 | |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 647 | if (ul_tbf && ul_tbf->handle_ctrl_ack()) { |
| 648 | if (!ul_tbf->ctrl_ack_to_toggle()) { |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 649 | LOGPTBF(this, LOGL_NOTICE, |
| 650 | "Timeout for polling PACKET CONTROL ACK for PACKET UPLINK ACK: %s\n", |
| 651 | rlcmac_diag().c_str()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 652 | } |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 653 | bts->do_rate_ctr_inc(CTR_RLC_ACK_TIMEDOUT); |
| 654 | bts->do_rate_ctr_inc(CTR_PUAN_POLL_TIMEDOUT); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 655 | if (state_is(GPRS_RLCMAC_FINISHED)) { |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 656 | if (ul_tbf->n_inc(N3103)) { |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 657 | bts->do_rate_ctr_inc(CTR_PUAN_POLL_FAILED); |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 658 | TBF_SET_STATE(ul_tbf, GPRS_RLCMAC_RELEASING); |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 659 | T_START(ul_tbf, T3169, 3169, "MAX N3103 reached", false); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 660 | return; |
| 661 | } |
| 662 | /* reschedule UL ack */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 663 | 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] | 664 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 665 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 666 | } else if (ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
| 667 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS))) { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 668 | LOGPTBF(this, LOGL_NOTICE, |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 669 | "Timeout for polling PACKET CONTROL ACK for PACKET UPLINK ASSIGNMENT: %s\n", |
| 670 | rlcmac_diag().c_str()); |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 671 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 672 | } |
| 673 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 674 | bts->do_rate_ctr_inc(CTR_RLC_ASS_TIMEDOUT); |
| 675 | bts->do_rate_ctr_inc(CTR_PUA_POLL_TIMEDOUT); |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 676 | if (n_inc(N3105)) { |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 677 | TBF_SET_STATE(this, GPRS_RLCMAC_RELEASING); |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 678 | T_START(this, T3195, 3195, "MAX N3105 reached", true); |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 679 | bts->do_rate_ctr_inc(CTR_RLC_ASS_FAILED); |
| 680 | bts->do_rate_ctr_inc(CTR_PUA_POLL_FAILED); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 681 | return; |
| 682 | } |
| 683 | /* reschedule UL assignment */ |
| 684 | ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS; |
| 685 | } else if (dl_ass_state == GPRS_RLCMAC_DL_ASS_WAIT_ACK) { |
| 686 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS))) { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 687 | LOGPTBF(this, LOGL_NOTICE, |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 688 | "Timeout for polling PACKET CONTROL ACK for PACKET DOWNLINK ASSIGNMENT: %s\n", |
| 689 | rlcmac_diag().c_str()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 690 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS); |
| 691 | } |
| 692 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 693 | bts->do_rate_ctr_inc(CTR_RLC_ASS_TIMEDOUT); |
| 694 | bts->do_rate_ctr_inc(CTR_PDA_POLL_TIMEDOUT); |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 695 | if (n_inc(N3105)) { |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 696 | TBF_SET_STATE(this, GPRS_RLCMAC_RELEASING); |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 697 | T_START(this, T3195, 3195, "MAX N3105 reached", true); |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 698 | bts->do_rate_ctr_inc(CTR_RLC_ASS_FAILED); |
| 699 | bts->do_rate_ctr_inc(CTR_PDA_POLL_FAILED); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 700 | return; |
| 701 | } |
| 702 | /* reschedule DL assignment */ |
| 703 | dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS; |
| 704 | } else if (direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 705 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 706 | |
| 707 | if (!(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_TO_DL_ACK))) { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 708 | LOGPTBF(this, LOGL_NOTICE, |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 709 | "Timeout for polling PACKET DOWNLINK ACK: %s\n", |
| 710 | dl_tbf->rlcmac_diag().c_str()); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 711 | 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] | 712 | } |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 713 | |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 714 | if (dl_tbf->state_is(GPRS_RLCMAC_RELEASING)) |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 715 | bts->do_rate_ctr_inc(CTR_RLC_REL_TIMEDOUT); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 716 | else { |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 717 | bts->do_rate_ctr_inc(CTR_RLC_ACK_TIMEDOUT); |
| 718 | bts->do_rate_ctr_inc(CTR_PDAN_POLL_TIMEDOUT); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 719 | } |
Max | 847ed9f | 2018-02-20 18:16:11 +0100 | [diff] [blame] | 720 | |
| 721 | if (dl_tbf->n_inc(N3105)) { |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 722 | TBF_SET_STATE(dl_tbf, GPRS_RLCMAC_RELEASING); |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 723 | T_START(dl_tbf, T3195, 3195, "MAX N3105 reached", true); |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 724 | bts->do_rate_ctr_inc(CTR_PDAN_POLL_FAILED); |
| 725 | bts->do_rate_ctr_inc(CTR_RLC_ACK_FAILED); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 726 | return; |
| 727 | } |
| 728 | /* resend IMM.ASS on CCCH on timeout */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 729 | if ((dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)) |
| 730 | && !(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 731 | LOGPTBF(dl_tbf, LOGL_DEBUG, "Re-send dowlink assignment on PCH (IMSI=%s)\n", |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 732 | imsi()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 733 | /* send immediate assignment */ |
Pau Espin Pedrol | d7c3265 | 2019-12-23 12:41:34 +0100 | [diff] [blame] | 734 | if ((pgroup = imsi2paging_group(imsi())) > 999) |
| 735 | LOGPTBF(dl_tbf, LOGL_ERROR, "IMSI to paging group failed! (%s)\n", imsi()); |
| 736 | dl_tbf->bts->snd_dl_ass(dl_tbf, false, pgroup); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 737 | dl_tbf->m_wait_confirm = 1; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 738 | } |
| 739 | } else |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 740 | LOGPTBF(this, LOGL_ERROR, "Poll Timeout, but no event!\n"); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 741 | } |
| 742 | |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 743 | int gprs_rlcmac_tbf::setup(int8_t use_trx, bool single_slot) |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 744 | { |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 745 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 746 | int rc; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 747 | |
Pau Espin Pedrol | 8072e35 | 2020-10-30 18:18:06 +0100 | [diff] [blame] | 748 | if (m_ms->egprs_ms_class() > 0) |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 749 | enable_egprs(); |
Daniel Willmann | 1b3864f | 2014-07-30 13:25:19 +0200 | [diff] [blame] | 750 | |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 751 | m_created_ts = time(NULL); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 752 | /* select algorithm */ |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 753 | rc = bts_data->alloc_algorithm(bts_data, m_ms, this, single_slot, use_trx); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 754 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 755 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 756 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 757 | } |
| 758 | /* assign control ts */ |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 759 | rc = tbf_assign_control_ts(this); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 760 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 761 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 762 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 763 | } |
| 764 | |
| 765 | /* set timestamp */ |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 766 | osmo_clock_gettime(CLOCK_MONOTONIC, &meas.rssi_tv); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 767 | |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 768 | LOGPTBF(this, LOGL_INFO, |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 769 | "Allocated: trx = %d, ul_slots = %02x, dl_slots = %02x\n", |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 770 | this->trx->trx_no, ul_slots(), dl_slots()); |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 771 | |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 772 | m_ctrs = rate_ctr_group_alloc(this, &tbf_ctrg_desc, next_tbf_ctr_group_id++); |
| 773 | if (!m_ctrs) { |
| 774 | LOGPTBF(this, LOGL_ERROR, "Couldn't allocate TBF counters\n"); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 775 | return -1; |
| 776 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 777 | |
Pau Espin Pedrol | e9f77d3 | 2020-10-23 18:41:40 +0200 | [diff] [blame] | 778 | m_ms->attach_tbf(this); |
| 779 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 780 | return 0; |
| 781 | } |
| 782 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 783 | static void tbf_timer_cb(void *_tbf) |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 784 | { |
| 785 | struct gprs_rlcmac_tbf *tbf = (struct gprs_rlcmac_tbf *)_tbf; |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 786 | tbf->handle_timeout(); |
| 787 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 788 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 789 | void gprs_rlcmac_tbf::handle_timeout() |
| 790 | { |
Philipp Maier | 33c52b6 | 2018-04-10 14:21:11 +0200 | [diff] [blame] | 791 | int current_fn = get_current_fn(); |
| 792 | |
| 793 | LOGPTBF(this, LOGL_DEBUG, "timer 0 expired. cur_fn=%d\n", current_fn); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 794 | |
| 795 | /* assignment */ |
| 796 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) { |
| 797 | if (state_is(GPRS_RLCMAC_ASSIGN)) { |
| 798 | LOGPTBF(this, LOGL_NOTICE, "releasing due to PACCH assignment timeout.\n"); |
| 799 | tbf_free(this); |
| 800 | return; |
| 801 | } else |
| 802 | LOGPTBF(this, LOGL_ERROR, "Error: TBF is not in assign state\n"); |
| 803 | } |
| 804 | |
| 805 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) { |
| 806 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
| 807 | dl_tbf->m_wait_confirm = 0; |
| 808 | if (dl_tbf->state_is(GPRS_RLCMAC_ASSIGN)) { |
| 809 | tbf_assign_control_ts(dl_tbf); |
| 810 | |
| 811 | if (!dl_tbf->upgrade_to_multislot) { |
| 812 | /* change state to FLOW, so scheduler |
| 813 | * will start transmission */ |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 814 | TBF_SET_STATE(dl_tbf, GPRS_RLCMAC_FLOW); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 815 | return; |
| 816 | } |
| 817 | |
| 818 | /* This tbf can be upgraded to use multiple DL |
| 819 | * timeslots and now that there is already one |
| 820 | * slot assigned send another DL assignment via |
| 821 | * PDCH. */ |
| 822 | |
| 823 | /* keep to flags */ |
| 824 | dl_tbf->state_flags &= GPRS_RLCMAC_FLAG_TO_MASK; |
| 825 | |
| 826 | dl_tbf->update(); |
| 827 | |
| 828 | dl_tbf->trigger_ass(dl_tbf); |
| 829 | } else |
| 830 | LOGPTBF(dl_tbf, LOGL_NOTICE, "Continue flow after IMM.ASS confirm\n"); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 831 | } |
| 832 | } |
| 833 | |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 834 | std::string gprs_rlcmac_tbf::rlcmac_diag() |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 835 | { |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 836 | std::ostringstream os; |
| 837 | os << "|"; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 838 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 839 | os << "Assignment was on CCCH|"; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 840 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 841 | os << "Assignment was on PACCH|"; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 842 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_UL_DATA))) |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 843 | os << "Uplink data was received|"; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 844 | else if (direction == GPRS_RLCMAC_UL_TBF) |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 845 | os << "No uplink data received yet|"; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 846 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 847 | os << "Downlink ACK was received|"; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 848 | else if (direction == GPRS_RLCMAC_DL_TBF) |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 849 | os << "No downlink ACK received yet|"; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 850 | |
Pau Espin Pedrol | cd6c466 | 2020-09-22 13:41:00 +0200 | [diff] [blame] | 851 | return os.str(); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 852 | } |
| 853 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 854 | 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] | 855 | { |
| 856 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 857 | struct gprs_rlcmac_dl_tbf *new_dl_tbf = NULL; |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 858 | RlcMacDownlink_t *mac_control_block = NULL; |
Holger Hans Peter Freyther | 9977e15 | 2013-11-24 22:52:10 +0100 | [diff] [blame] | 859 | int poll_ass_dl = 1; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 860 | unsigned int rrbp = 0; |
| 861 | uint32_t new_poll_fn = 0; |
| 862 | int rc; |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 863 | bool old_tfi_is_valid = is_tfi_assigned(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 864 | |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 865 | if (direction == GPRS_RLCMAC_DL_TBF && !is_control_ts(ts)) { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 866 | LOGPTBF(this, LOGL_NOTICE, |
Thorsten Alteholz | 8bb7904 | 2018-10-06 10:42:58 +0200 | [diff] [blame] | 867 | "Cannot poll for downlink assignment, because MS cannot reply. (TS=%d, first common TS=%d)\n", |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 868 | ts, first_common_ts); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 869 | poll_ass_dl = 0; |
| 870 | } |
| 871 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 872 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 873 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) |
| 874 | { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 875 | LOGPTBF(this, LOGL_DEBUG, |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 876 | "Polling is already scheduled, so we must wait for the uplink assignment...\n"); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 877 | return NULL; |
| 878 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 879 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 880 | if (rc < 0) |
| 881 | return NULL; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 882 | } |
| 883 | |
| 884 | /* on uplink TBF we get the downlink TBF to be assigned. */ |
| 885 | if (direction == GPRS_RLCMAC_UL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 886 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 887 | |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 888 | /* be sure to check first, if contention resolution is done, |
| 889 | * otherwise we cannot send the assignment yet */ |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 890 | if (!ul_tbf->m_contention_resolution_done) { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 891 | LOGPTBF(this, LOGL_DEBUG, |
| 892 | "Cannot assign DL TBF now, because contention resolution is not finished.\n"); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 893 | return NULL; |
| 894 | } |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 895 | } |
| 896 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 897 | if (ms()) |
| 898 | new_dl_tbf = ms()->dl_tbf(); |
| 899 | |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 900 | if (!new_dl_tbf) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 901 | LOGPTBFDL(this, LOGL_ERROR, |
| 902 | "We have a schedule for downlink assignment, but there is no downlink TBF\n"); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 903 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 904 | return NULL; |
| 905 | } |
| 906 | |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 907 | if (new_dl_tbf == as_dl_tbf(this)) |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 908 | LOGPTBF(this, LOGL_DEBUG, "New and old TBF are the same.\n"); |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 909 | |
| 910 | if (old_tfi_is_valid && !new_dl_tbf->is_tlli_valid()) { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 911 | LOGPTBF(this, LOGL_ERROR, |
| 912 | "The old TFI is not assigned and there is no TLLI. New TBF %s\n", |
| 913 | new_dl_tbf->name()); |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 914 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 915 | return NULL; |
| 916 | } |
| 917 | |
Holger Hans Peter Freyther | f5c9747 | 2014-12-26 18:32:00 +0100 | [diff] [blame] | 918 | new_dl_tbf->was_releasing = was_releasing; |
Vadim Yanitskiy | c82c1f5 | 2020-08-21 19:53:32 +0700 | [diff] [blame] | 919 | msg = msgb_alloc(GSM_MACBLOCK_LEN, "rlcmac_dl_ass"); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 920 | if (!msg) |
| 921 | return NULL; |
Vadim Yanitskiy | e4bcd21 | 2020-08-21 19:45:09 +0700 | [diff] [blame] | 922 | |
| 923 | /* Initialize a bit vector that uses allocated msgb as the data buffer. |
| 924 | * Old G++ does not support non-trivial designated initializers. Sigh. */ |
| 925 | struct bitvec bv = { }; |
| 926 | bv.data = msgb_put(msg, GSM_MACBLOCK_LEN); |
| 927 | bv.data_len = GSM_MACBLOCK_LEN; |
| 928 | bitvec_unhex(&bv, DUMMY_VEC); |
| 929 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 930 | LOGPTBF(new_dl_tbf, LOGL_INFO, "start Packet Downlink Assignment (PACCH)\n"); |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 931 | mac_control_block = (RlcMacDownlink_t *)talloc_zero(tall_pcu_ctx, RlcMacDownlink_t); |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 932 | Encoding::write_packet_downlink_assignment(mac_control_block, |
| 933 | old_tfi_is_valid, m_tfi, (direction == GPRS_RLCMAC_DL_TBF), |
| 934 | new_dl_tbf, poll_ass_dl, rrbp, |
| 935 | bts_data()->alpha, bts_data()->gamma, -1, 0, |
Jacob Erlbeck | 166c9fc | 2016-01-07 16:04:29 +0100 | [diff] [blame] | 936 | is_egprs_enabled()); |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 937 | LOGP(DTBF, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++\n"); |
Vadim Yanitskiy | e4bcd21 | 2020-08-21 19:45:09 +0700 | [diff] [blame] | 938 | rc = encode_gsm_rlcmac_downlink(&bv, mac_control_block); |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 939 | if (rc < 0) { |
| 940 | LOGP(DTBF, LOGL_ERROR, "Decoding of Packet Downlink Ass failed (%d)\n", rc); |
| 941 | goto free_ret; |
| 942 | } |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 943 | LOGP(DTBF, LOGL_DEBUG, "------------------------- TX : Packet Downlink Assignment -------------------------\n"); |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 944 | bts->do_rate_ctr_inc(CTR_PKT_DL_ASSIGNMENT); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 945 | |
| 946 | if (poll_ass_dl) { |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 947 | set_polling(new_poll_fn, ts, GPRS_RLCMAC_POLL_DL_ASS); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 948 | } else { |
| 949 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Max | 2399b1d | 2018-01-12 15:48:12 +0100 | [diff] [blame] | 950 | TBF_SET_STATE(new_dl_tbf, GPRS_RLCMAC_FLOW); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 951 | tbf_assign_control_ts(new_dl_tbf); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 952 | /* stop pending assignment timer */ |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 953 | new_dl_tbf->t_stop(T0, "assignment (DL-TBF)"); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 954 | |
| 955 | } |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 956 | |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 957 | talloc_free(mac_control_block); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 958 | return msg; |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 959 | |
| 960 | free_ret: |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 961 | talloc_free(mac_control_block); |
| 962 | msgb_free(msg); |
| 963 | return NULL; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 964 | } |
| 965 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 966 | struct msgb *gprs_rlcmac_tbf::create_packet_access_reject() |
| 967 | { |
| 968 | struct msgb *msg; |
| 969 | |
Vadim Yanitskiy | c82c1f5 | 2020-08-21 19:53:32 +0700 | [diff] [blame] | 970 | msg = msgb_alloc(GSM_MACBLOCK_LEN, "rlcmac_ul_ass_rej"); |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 971 | |
Vadim Yanitskiy | c82c1f5 | 2020-08-21 19:53:32 +0700 | [diff] [blame] | 972 | bitvec *packet_access_rej = bitvec_alloc(GSM_MACBLOCK_LEN, tall_pcu_ctx); |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 973 | |
Max | 7426c5f | 2019-02-18 20:42:42 +0100 | [diff] [blame] | 974 | bitvec_unhex(packet_access_rej, DUMMY_VEC); |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 975 | |
| 976 | Encoding::write_packet_access_reject( |
| 977 | packet_access_rej, tlli()); |
| 978 | |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 979 | bts->do_rate_ctr_inc(CTR_PKT_ACCESS_REJ); |
sivasankari | 168911b | 2016-11-25 19:53:36 +0530 | [diff] [blame] | 980 | |
Vadim Yanitskiy | c82c1f5 | 2020-08-21 19:53:32 +0700 | [diff] [blame] | 981 | bitvec_pack(packet_access_rej, msgb_put(msg, GSM_MACBLOCK_LEN)); |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 982 | |
| 983 | bitvec_free(packet_access_rej); |
| 984 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 985 | |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 986 | /* Start Tmr only if it is UL TBF */ |
| 987 | if (direction == GPRS_RLCMAC_UL_TBF) |
Pau Espin Pedrol | 28f160e | 2019-09-05 14:48:35 +0200 | [diff] [blame] | 988 | T_START(this, T0, -2000, "reject (PACCH)", true); |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 989 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 990 | return msg; |
| 991 | |
| 992 | } |
| 993 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 994 | 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] | 995 | { |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 996 | struct msgb *msg = NULL; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 997 | struct gprs_rlcmac_ul_tbf *new_tbf = NULL; |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 998 | RlcMacDownlink_t *mac_control_block = NULL; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 999 | int rc; |
| 1000 | unsigned int rrbp; |
| 1001 | uint32_t new_poll_fn; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1002 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1003 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1004 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1005 | LOGPTBFUL(this, LOGL_DEBUG, |
| 1006 | "Polling is already scheduled, so we must wait for the uplink assignment...\n"); |
Vadim Yanitskiy | c74e217 | 2020-02-09 02:48:03 +0700 | [diff] [blame] | 1007 | return NULL; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1008 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1009 | |
| 1010 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1011 | if (rc < 0) |
| 1012 | return NULL; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1013 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1014 | if (ms()) |
| 1015 | new_tbf = ms()->ul_tbf(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1016 | if (!new_tbf) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1017 | LOGPTBFUL(this, LOGL_ERROR, |
| 1018 | "We have a schedule for uplink assignment, but there is no uplink TBF\n"); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1019 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1020 | return NULL; |
| 1021 | } |
| 1022 | |
Vadim Yanitskiy | c82c1f5 | 2020-08-21 19:53:32 +0700 | [diff] [blame] | 1023 | msg = msgb_alloc(GSM_MACBLOCK_LEN, "rlcmac_ul_ass"); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1024 | if (!msg) |
| 1025 | return NULL; |
Vadim Yanitskiy | e4bcd21 | 2020-08-21 19:45:09 +0700 | [diff] [blame] | 1026 | |
| 1027 | /* Initialize a bit vector that uses allocated msgb as the data buffer. |
| 1028 | * Old G++ does not support non-trivial designated initializers. Sigh. */ |
| 1029 | struct bitvec bv = { }; |
| 1030 | bv.data = msgb_put(msg, GSM_MACBLOCK_LEN); |
| 1031 | bv.data_len = GSM_MACBLOCK_LEN; |
| 1032 | bitvec_unhex(&bv, DUMMY_VEC); |
| 1033 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1034 | LOGPTBF(new_tbf, LOGL_INFO, "start Packet Uplink Assignment (PACCH)\n"); |
Vadim Yanitskiy | db56a35 | 2020-08-22 02:05:28 +0700 | [diff] [blame] | 1035 | mac_control_block = (RlcMacDownlink_t *)talloc_zero(tall_pcu_ctx, RlcMacDownlink_t); |
| 1036 | Encoding::write_packet_uplink_assignment(mac_control_block, m_tfi, |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1037 | (direction == GPRS_RLCMAC_DL_TBF), tlli(), |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1038 | is_tlli_valid(), new_tbf, 1, rrbp, bts_data()->alpha, |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 1039 | bts_data()->gamma, -1, is_egprs_enabled()); |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 1040 | |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 1041 | LOGP(DTBF, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++\n"); |
Vadim Yanitskiy | db56a35 | 2020-08-22 02:05:28 +0700 | [diff] [blame] | 1042 | rc = encode_gsm_rlcmac_downlink(&bv, mac_control_block); |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 1043 | if (rc < 0) { |
Vadim Yanitskiy | db56a35 | 2020-08-22 02:05:28 +0700 | [diff] [blame] | 1044 | LOGP(DTBF, LOGL_ERROR, "Encoding of Packet Uplink Ass failed (%d)\n", rc); |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 1045 | goto free_ret; |
| 1046 | } |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 1047 | LOGP(DTBF, LOGL_DEBUG, "------------------------- TX : Packet Uplink Assignment -------------------------\n"); |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 1048 | bts->do_rate_ctr_inc(CTR_PKT_UL_ASSIGNMENT); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1049 | |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 1050 | set_polling(new_poll_fn, ts, GPRS_RLCMAC_POLL_UL_ASS); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1051 | |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 1052 | talloc_free(mac_control_block); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1053 | return msg; |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 1054 | |
| 1055 | free_ret: |
Pau Espin Pedrol | 5e300ce | 2020-02-03 17:18:03 +0100 | [diff] [blame] | 1056 | talloc_free(mac_control_block); |
| 1057 | msgb_free(msg); |
| 1058 | return NULL; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1059 | } |
| 1060 | |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1061 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_trx *trx) |
| 1062 | { |
Jacob Erlbeck | 3a10dbd | 2015-07-10 19:52:37 +0200 | [diff] [blame] | 1063 | for (uint8_t ts = 0; ts < 8; ts++) |
| 1064 | free_all(&trx->pdch[ts]); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1065 | } |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1066 | |
| 1067 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_pdch *pdch) |
| 1068 | { |
| 1069 | for (uint8_t tfi = 0; tfi < 32; tfi++) { |
| 1070 | struct gprs_rlcmac_tbf *tbf; |
| 1071 | |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1072 | tbf = pdch->ul_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1073 | if (tbf) |
| 1074 | tbf_free(tbf); |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1075 | tbf = pdch->dl_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1076 | if (tbf) |
| 1077 | tbf_free(tbf); |
| 1078 | } |
| 1079 | } |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1080 | |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1081 | int gprs_rlcmac_tbf::establish_dl_tbf_on_pacch() |
| 1082 | { |
| 1083 | struct gprs_rlcmac_dl_tbf *new_tbf = NULL; |
| 1084 | |
Pau Espin Pedrol | 2338e53 | 2020-05-12 20:54:35 +0200 | [diff] [blame] | 1085 | bts->do_rate_ctr_inc(CTR_TBF_REUSED); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1086 | |
| 1087 | new_tbf = tbf_alloc_dl_tbf(bts->bts_data(), ms(), |
Pau Espin Pedrol | 322456e | 2020-05-08 18:15:59 +0200 | [diff] [blame] | 1088 | this->trx->trx_no, false); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1089 | |
| 1090 | if (!new_tbf) { |
Max | 0524e38 | 2018-01-19 18:22:25 +0100 | [diff] [blame] | 1091 | LOGP(DTBF, LOGL_NOTICE, "No PDCH resource\n"); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1092 | return -1; |
| 1093 | } |
| 1094 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1095 | LOGPTBF(this, LOGL_DEBUG, "Trigger downlink assignment on PACCH\n"); |
Max | a10c398 | 2017-07-07 18:25:41 +0200 | [diff] [blame] | 1096 | new_tbf->trigger_ass(this); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1097 | |
| 1098 | return 0; |
| 1099 | } |
| 1100 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1101 | const char *tbf_name(gprs_rlcmac_tbf *tbf) |
| 1102 | { |
Alexander Couzens | e04fd0c | 2016-05-31 13:18:01 +0200 | [diff] [blame] | 1103 | return tbf ? tbf->name() : "(no TBF)"; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1104 | } |
| 1105 | |
| 1106 | const char *gprs_rlcmac_tbf::name() const |
| 1107 | { |
| 1108 | snprintf(m_name_buf, sizeof(m_name_buf) - 1, |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1109 | "TBF(TFI=%d TLLI=0x%08x DIR=%s STATE=%s%s)", |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1110 | m_tfi, tlli(), |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1111 | direction == GPRS_RLCMAC_UL_TBF ? "UL" : "DL", |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1112 | state_name(), |
| 1113 | is_egprs_enabled() ? " EGPRS" : "" |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1114 | ); |
| 1115 | m_name_buf[sizeof(m_name_buf) - 1] = '\0'; |
| 1116 | return m_name_buf; |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1117 | } |
Holger Hans Peter Freyther | 758dc12 | 2013-11-06 20:39:45 +0100 | [diff] [blame] | 1118 | |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1119 | void gprs_rlcmac_tbf::rotate_in_list() |
| 1120 | { |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1121 | llist_del(&list()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1122 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1123 | llist_add(&list(), &bts->ul_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1124 | else |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1125 | llist_add(&list(), &bts->dl_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1126 | } |
Holger Hans Peter Freyther | 8f399de | 2013-12-25 20:22:35 +0100 | [diff] [blame] | 1127 | |
| 1128 | uint8_t gprs_rlcmac_tbf::tsc() const |
| 1129 | { |
| 1130 | return trx->pdch[first_ts].tsc; |
| 1131 | } |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 1132 | |
Jacob Erlbeck | 617c712 | 2015-06-30 09:18:30 +0200 | [diff] [blame] | 1133 | uint8_t gprs_rlcmac_tbf::dl_slots() const |
| 1134 | { |
| 1135 | uint8_t slots = 0; |
| 1136 | size_t i; |
| 1137 | |
| 1138 | if (direction == GPRS_RLCMAC_UL_TBF) |
| 1139 | return 0; |
| 1140 | |
| 1141 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1142 | if (pdch[i]) |
| 1143 | slots |= 1 << i; |
| 1144 | |
| 1145 | return slots; |
| 1146 | } |
| 1147 | |
| 1148 | uint8_t gprs_rlcmac_tbf::ul_slots() const |
| 1149 | { |
| 1150 | uint8_t slots = 0; |
| 1151 | size_t i; |
| 1152 | |
| 1153 | if (direction == GPRS_RLCMAC_DL_TBF) { |
| 1154 | if (control_ts < 8) |
| 1155 | slots |= 1 << control_ts; |
| 1156 | if (first_common_ts < 8) |
| 1157 | slots |= 1 << first_common_ts; |
| 1158 | |
| 1159 | return slots; |
| 1160 | } |
| 1161 | |
| 1162 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1163 | if (pdch[i]) |
| 1164 | slots |= 1 << i; |
| 1165 | |
| 1166 | return slots; |
| 1167 | } |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1168 | |
| 1169 | bool gprs_rlcmac_tbf::is_control_ts(uint8_t ts) const |
| 1170 | { |
| 1171 | return ts == control_ts; |
| 1172 | } |