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> |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 35 | #include <osmocom/core/utils.h> |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 36 | #include <osmocom/core/talloc.h> |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 37 | #include <osmocom/core/stats.h> |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 38 | #include <osmocom/core/logging.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | #include <errno.h> |
| 42 | #include <string.h> |
| 43 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 44 | extern void *tall_pcu_ctx; |
| 45 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 46 | static void tbf_timer_cb(void *_tbf); |
| 47 | |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 48 | const struct value_string gprs_rlcmac_tbf_dl_ass_state_names[] = { |
| 49 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_NONE), |
| 50 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_SEND_ASS), |
| 51 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_WAIT_ACK), |
| 52 | { 0, NULL } |
| 53 | }; |
| 54 | |
| 55 | const struct value_string gprs_rlcmac_tbf_ul_ass_state_names[] = { |
| 56 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_NONE), |
| 57 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_SEND_ASS), |
| 58 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ), |
| 59 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_WAIT_ACK), |
| 60 | { 0, NULL } |
| 61 | }; |
| 62 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 63 | static const struct value_string tbf_timers_names[] = { |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 64 | OSMO_VALUE_STRING(T0), |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 65 | OSMO_VALUE_STRING(T3169), |
| 66 | OSMO_VALUE_STRING(T3191), |
| 67 | OSMO_VALUE_STRING(T3193), |
| 68 | OSMO_VALUE_STRING(T3195), |
| 69 | { 0, NULL } |
| 70 | }; |
| 71 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 72 | static const struct rate_ctr_desc tbf_ctr_description[] = { |
| 73 | { "rlc.nacked", "RLC Nacked " }, |
| 74 | }; |
| 75 | |
| 76 | static const struct rate_ctr_desc tbf_dl_gprs_ctr_description[] = { |
| 77 | { "gprs.downlink.cs1", "CS1 " }, |
| 78 | { "gprs.downlink.cs2", "CS2 " }, |
| 79 | { "gprs.downlink.cs3", "CS3 " }, |
| 80 | { "gprs.downlink.cs4", "CS4 " }, |
| 81 | }; |
| 82 | |
| 83 | static const struct rate_ctr_desc tbf_dl_egprs_ctr_description[] = { |
| 84 | { "egprs.downlink.mcs1", "MCS1 " }, |
| 85 | { "egprs.downlink.mcs2", "MCS2 " }, |
| 86 | { "egprs.downlink.mcs3", "MCS3 " }, |
| 87 | { "egprs.downlink.mcs4", "MCS4 " }, |
| 88 | { "egprs.downlink.mcs5", "MCS5 " }, |
| 89 | { "egprs.downlink.mcs6", "MCS6 " }, |
| 90 | { "egprs.downlink.mcs7", "MCS7 " }, |
| 91 | { "egprs.downlink.mcs8", "MCS8 " }, |
| 92 | { "egprs.downlink.mcs9", "MCS9 " }, |
| 93 | }; |
| 94 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 95 | static const struct rate_ctr_desc tbf_ul_gprs_ctr_description[] = { |
| 96 | { "gprs.uplink.cs1", "CS1 " }, |
| 97 | { "gprs.uplink.cs2", "CS2 " }, |
| 98 | { "gprs.uplink.cs3", "CS3 " }, |
| 99 | { "gprs.uplink.cs4", "CS4 " }, |
| 100 | }; |
| 101 | |
| 102 | static const struct rate_ctr_desc tbf_ul_egprs_ctr_description[] = { |
| 103 | { "egprs.uplink.mcs1", "MCS1 " }, |
| 104 | { "egprs.uplink.mcs2", "MCS2 " }, |
| 105 | { "egprs.uplink.mcs3", "MCS3 " }, |
| 106 | { "egprs.uplink.mcs4", "MCS4 " }, |
| 107 | { "egprs.uplink.mcs5", "MCS5 " }, |
| 108 | { "egprs.uplink.mcs6", "MCS6 " }, |
| 109 | { "egprs.uplink.mcs7", "MCS7 " }, |
| 110 | { "egprs.uplink.mcs8", "MCS8 " }, |
| 111 | { "egprs.uplink.mcs9", "MCS9 " }, |
| 112 | }; |
| 113 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 114 | static const struct rate_ctr_group_desc tbf_ctrg_desc = { |
| 115 | "pcu.tbf", |
| 116 | "TBF Statistics", |
| 117 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 118 | ARRAY_SIZE(tbf_ctr_description), |
| 119 | tbf_ctr_description, |
| 120 | }; |
| 121 | |
| 122 | static const struct rate_ctr_group_desc tbf_dl_gprs_ctrg_desc = { |
| 123 | "tbf.gprs", |
| 124 | "Data Blocks", |
| 125 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 126 | ARRAY_SIZE(tbf_dl_gprs_ctr_description), |
| 127 | tbf_dl_gprs_ctr_description, |
| 128 | }; |
| 129 | |
| 130 | static const struct rate_ctr_group_desc tbf_dl_egprs_ctrg_desc = { |
| 131 | "tbf.egprs", |
| 132 | "Data Blocks", |
| 133 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 134 | ARRAY_SIZE(tbf_dl_egprs_ctr_description), |
| 135 | tbf_dl_egprs_ctr_description, |
| 136 | }; |
| 137 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 138 | static const struct rate_ctr_group_desc tbf_ul_gprs_ctrg_desc = { |
| 139 | "tbf.gprs", |
| 140 | "Data Blocks", |
| 141 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 142 | ARRAY_SIZE(tbf_ul_gprs_ctr_description), |
| 143 | tbf_ul_gprs_ctr_description, |
| 144 | }; |
| 145 | |
| 146 | static const struct rate_ctr_group_desc tbf_ul_egprs_ctrg_desc = { |
| 147 | "tbf.egprs", |
| 148 | "Data Blocks", |
| 149 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 150 | ARRAY_SIZE(tbf_ul_egprs_ctr_description), |
| 151 | tbf_ul_egprs_ctr_description, |
| 152 | }; |
| 153 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 154 | gprs_rlcmac_tbf::Meas::Meas() : |
| 155 | rssi_sum(0), |
| 156 | rssi_num(0) |
| 157 | { |
| 158 | timerclear(&rssi_tv); |
| 159 | } |
| 160 | |
| 161 | gprs_rlcmac_tbf::gprs_rlcmac_tbf(BTS *bts_, gprs_rlcmac_tbf_direction dir) : |
| 162 | state_flags(0), |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 163 | direction(dir), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 164 | trx(NULL), |
| 165 | first_ts(0), |
| 166 | first_common_ts(0), |
| 167 | control_ts(0xff), |
| 168 | dl_ass_state(GPRS_RLCMAC_DL_ASS_NONE), |
| 169 | ul_ass_state(GPRS_RLCMAC_UL_ASS_NONE), |
| 170 | ul_ack_state(GPRS_RLCMAC_UL_ACK_NONE), |
| 171 | poll_state(GPRS_RLCMAC_POLL_NONE), |
| 172 | poll_fn(0), |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 173 | poll_ts(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 174 | n3105(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 175 | fT(0), |
| 176 | num_fT_exp(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 177 | was_releasing(0), |
| 178 | upgrade_to_multislot(0), |
| 179 | bts(bts_), |
Max | 59e4a4f | 2017-12-20 18:01:55 +0100 | [diff] [blame] | 180 | m_n3101(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 181 | m_tfi(0), |
| 182 | m_created_ts(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 183 | m_ctrs(NULL), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 184 | m_ms(NULL), |
Max | 9bbe160 | 2016-07-18 12:50:18 +0200 | [diff] [blame] | 185 | m_ta(GSM48_TA_INVALID), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 186 | m_ms_class(0), |
Max | 5081806 | 2017-12-06 13:35:08 +0100 | [diff] [blame] | 187 | state(GPRS_RLCMAC_NULL), |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 188 | m_list(this), |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 189 | m_ms_list(this), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 190 | m_egprs_enabled(false) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 191 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 192 | /* The classes of these members do not have proper constructors yet. |
| 193 | * Just set them to 0 like talloc_zero did */ |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 194 | memset(&pdch, 0, sizeof(pdch)); |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 195 | memset(&T, 0, sizeof(T)); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 196 | memset(&m_rlc, 0, sizeof(m_rlc)); |
| 197 | memset(&gsm_timer, 0, sizeof(gsm_timer)); |
| 198 | |
| 199 | m_llc.init(); |
| 200 | |
| 201 | m_name_buf[0] = '\0'; |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 202 | } |
| 203 | |
Daniel Willmann | ca102af | 2014-08-08 12:14:12 +0200 | [diff] [blame] | 204 | gprs_rlcmac_bts *gprs_rlcmac_tbf::bts_data() const |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 205 | { |
| 206 | return bts->bts_data(); |
| 207 | } |
| 208 | |
Jacob Erlbeck | 8759735 | 2015-05-18 11:56:50 +0200 | [diff] [blame] | 209 | uint32_t gprs_rlcmac_tbf::tlli() const |
| 210 | { |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 211 | return m_ms ? m_ms->tlli() : 0; |
Jacob Erlbeck | 8759735 | 2015-05-18 11:56:50 +0200 | [diff] [blame] | 212 | } |
| 213 | |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 214 | const char *gprs_rlcmac_tbf::imsi() const |
Holger Hans Peter Freyther | d868928 | 2013-08-24 20:51:06 +0200 | [diff] [blame] | 215 | { |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 216 | static const char nullc = 0; |
| 217 | return m_ms ? m_ms->imsi() : &nullc; |
| 218 | } |
| 219 | |
| 220 | void gprs_rlcmac_tbf::assign_imsi(const char *imsi_) |
| 221 | { |
| 222 | GprsMs *old_ms; |
| 223 | |
| 224 | if (!imsi_ || !m_ms) { |
| 225 | LOGP(DRLCMAC, LOGL_ERROR, |
| 226 | "%s failed to assign IMSI: missing IMSI or MS object\n", |
| 227 | name()); |
| 228 | return; |
| 229 | } |
| 230 | |
| 231 | if (strcmp(imsi_, imsi()) == 0) |
| 232 | return; |
| 233 | |
| 234 | /* really change the IMSI */ |
| 235 | |
| 236 | old_ms = bts->ms_store().get_ms(0, 0, imsi_); |
| 237 | if (old_ms) { |
| 238 | /* We cannot find m_ms by IMSI since we know that it has a |
| 239 | * different IMSI */ |
| 240 | OSMO_ASSERT(old_ms != m_ms); |
| 241 | |
| 242 | LOGP(DRLCMAC, LOGL_INFO, |
| 243 | "%s the IMSI '%s' was already assigned to another " |
| 244 | "MS object: TLLI = 0x%08x, that IMSI will be removed\n", |
| 245 | name(), imsi_, old_ms->tlli()); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 246 | |
| 247 | merge_and_clear_ms(old_ms); |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 248 | } |
| 249 | |
| 250 | m_ms->set_imsi(imsi_); |
Holger Hans Peter Freyther | d868928 | 2013-08-24 20:51:06 +0200 | [diff] [blame] | 251 | } |
| 252 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 253 | uint8_t gprs_rlcmac_tbf::ta() const |
| 254 | { |
| 255 | return m_ms ? m_ms->ta() : m_ta; |
| 256 | } |
| 257 | |
| 258 | void gprs_rlcmac_tbf::set_ta(uint8_t ta) |
| 259 | { |
| 260 | if (ms()) |
| 261 | ms()->set_ta(ta); |
| 262 | |
Max | 9bbe160 | 2016-07-18 12:50:18 +0200 | [diff] [blame] | 263 | if (gsm48_ta_is_valid(ta)) |
| 264 | m_ta = ta; |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 265 | } |
| 266 | |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 267 | uint8_t gprs_rlcmac_tbf::ms_class() const |
| 268 | { |
| 269 | return m_ms ? m_ms->ms_class() : m_ms_class; |
| 270 | } |
| 271 | |
| 272 | void gprs_rlcmac_tbf::set_ms_class(uint8_t ms_class_) |
| 273 | { |
| 274 | if (ms()) |
| 275 | ms()->set_ms_class(ms_class_); |
| 276 | |
| 277 | m_ms_class = ms_class_; |
| 278 | } |
| 279 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 280 | GprsCodingScheme gprs_rlcmac_tbf::current_cs() const |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 281 | { |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 282 | GprsCodingScheme cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 283 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 284 | cs = m_ms ? m_ms->current_cs_ul() : GprsCodingScheme(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 285 | else |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 286 | cs = m_ms ? m_ms->current_cs_dl() : GprsCodingScheme(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 287 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 288 | return cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 289 | } |
| 290 | |
Jacob Erlbeck | 489a2b3 | 2015-05-28 19:07:01 +0200 | [diff] [blame] | 291 | gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() |
| 292 | { |
| 293 | return m_ms ? m_ms->llc_queue() : NULL; |
| 294 | } |
| 295 | |
| 296 | const gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() const |
| 297 | { |
| 298 | return m_ms ? m_ms->llc_queue() : NULL; |
| 299 | } |
| 300 | |
Max | 869c0c2 | 2018-01-03 12:00:36 +0100 | [diff] [blame] | 301 | size_t gprs_rlcmac_tbf::llc_queue_size() const |
Alexander Couzens | d38b92e | 2016-08-21 19:38:30 +0200 | [diff] [blame] | 302 | { |
| 303 | /* m_ms->llc_queue() never returns NULL: GprsMs::m_llc_queue is a |
| 304 | * member instance. */ |
| 305 | return m_ms ? m_ms->llc_queue()->size() : 0; |
| 306 | } |
| 307 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 308 | void gprs_rlcmac_tbf::set_ms(GprsMs *ms) |
| 309 | { |
| 310 | if (m_ms == ms) |
| 311 | return; |
| 312 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 313 | if (m_ms) { |
| 314 | /* Save the TA locally. This will also be called, if the MS |
| 315 | * object detaches itself from the TBF, for instance if |
| 316 | * attach_tbf() is called */ |
| 317 | m_ta = m_ms->ta(); |
| 318 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 319 | m_ms->detach_tbf(this); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 320 | } |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 321 | |
| 322 | m_ms = ms; |
| 323 | |
| 324 | if (m_ms) |
| 325 | m_ms->attach_tbf(this); |
| 326 | } |
| 327 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 328 | void gprs_rlcmac_tbf::merge_and_clear_ms(GprsMs *old_ms) |
| 329 | { |
| 330 | if (old_ms == ms()) |
| 331 | return; |
| 332 | |
| 333 | GprsMs::Guard guard_old(old_ms); |
| 334 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 335 | /* Clean up the old MS object */ |
| 336 | /* TODO: Use timer? */ |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 337 | if (old_ms->ul_tbf() && !old_ms->ul_tbf()->timers_pending(T_MAX)) { |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 338 | if (old_ms->ul_tbf() == this) { |
| 339 | LOGP(DRLCMAC, LOGL_ERROR, |
| 340 | "%s is referred by the old MS " |
| 341 | "and will not be deleted\n", |
| 342 | name()); |
| 343 | set_ms(NULL); |
| 344 | } else { |
| 345 | tbf_free(old_ms->ul_tbf()); |
| 346 | } |
| 347 | } |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 348 | if (old_ms->dl_tbf() && !old_ms->dl_tbf()->timers_pending(T_MAX)) { |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 349 | if (old_ms->dl_tbf() == this) { |
| 350 | LOGP(DRLCMAC, LOGL_ERROR, |
| 351 | "%s is referred by the old MS " |
| 352 | "and will not be deleted\n", |
| 353 | name()); |
| 354 | set_ms(NULL); |
| 355 | } else { |
| 356 | tbf_free(old_ms->dl_tbf()); |
| 357 | } |
| 358 | } |
| 359 | |
Jacob Erlbeck | 2b349b5 | 2015-08-18 11:55:03 +0200 | [diff] [blame] | 360 | ms()->merge_old_ms(old_ms); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 361 | } |
| 362 | |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 363 | 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] | 364 | { |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 365 | if (!ms()) |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 366 | return; |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 367 | |
| 368 | if (!tlli) |
| 369 | return; |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 370 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 371 | /* TODO: When the TLLI does not match the ms, check if there is another |
| 372 | * MS object that belongs to that TLLI and if yes make sure one of them |
| 373 | * gets deleted. This is the same problem that can arise with |
| 374 | * assign_imsi() so there should be a unified solution */ |
| 375 | if (!ms()->check_tlli(tlli)) { |
| 376 | GprsMs *old_ms; |
| 377 | |
| 378 | old_ms = bts->ms_store().get_ms(tlli, 0, NULL); |
| 379 | if (old_ms) |
| 380 | merge_and_clear_ms(old_ms); |
| 381 | } |
| 382 | |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 383 | if (dir == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 384 | ms()->set_tlli(tlli); |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 385 | else |
| 386 | ms()->confirm_tlli(tlli); |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 387 | } |
| 388 | |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 389 | gprs_rlcmac_ul_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 390 | 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] | 391 | uint32_t tlli, uint8_t ta, GprsMs *ms) |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 392 | { |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 393 | struct gprs_rlcmac_ul_tbf *tbf; |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 394 | |
Max | 5a6bcfb | 2017-09-01 14:36:44 +0200 | [diff] [blame] | 395 | /* FIXME: Copy and paste with tbf_new_dl_assignment */ |
Holger Hans Peter Freyther | ba26368 | 2013-12-25 19:15:57 +0100 | [diff] [blame] | 396 | /* create new TBF, use same TRX as DL TBF */ |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 397 | /* use multislot class of downlink TBF */ |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 398 | 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] | 399 | if (!tbf) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 400 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 401 | /* FIXME: send reject */ |
| 402 | return NULL; |
| 403 | } |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 404 | tbf->m_contention_resolution_done = 1; |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 405 | tbf->set_assigned_on(GPRS_RLCMAC_FLAG_PACCH, false); |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 406 | T_START(tbf, T3169, bts->t3169, 0, "allocation (UL-TBF)", true); |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 407 | tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 408 | OSMO_ASSERT(tbf->ms()); |
| 409 | |
| 410 | tbf->ms()->set_ta(ta); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 411 | |
| 412 | return tbf; |
| 413 | } |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 414 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 415 | static void tbf_unlink_pdch(struct gprs_rlcmac_tbf *tbf) |
| 416 | { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 417 | int ts; |
| 418 | |
Jacob Erlbeck | ccc34e4 | 2015-06-29 13:45:05 +0200 | [diff] [blame] | 419 | for (ts = 0; ts < 8; ts++) { |
| 420 | if (!tbf->pdch[ts]) |
| 421 | continue; |
| 422 | |
| 423 | tbf->pdch[ts]->detach_tbf(tbf); |
| 424 | tbf->pdch[ts] = NULL; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 425 | } |
| 426 | } |
| 427 | |
| 428 | void tbf_free(struct gprs_rlcmac_tbf *tbf) |
| 429 | { |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 430 | /* update counters */ |
| 431 | if (tbf->direction == GPRS_RLCMAC_UL_TBF) { |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 432 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(tbf); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 433 | tbf->bts->tbf_ul_freed(); |
| 434 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 435 | tbf->bts->tbf_ul_aborted(); |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 436 | rate_ctr_group_free(ul_tbf->m_ul_egprs_ctrs); |
| 437 | rate_ctr_group_free(ul_tbf->m_ul_gprs_ctrs); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 438 | } else { |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 439 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
| 440 | if (tbf->is_egprs_enabled()) { |
| 441 | rate_ctr_group_free(dl_tbf->m_dl_egprs_ctrs); |
| 442 | } else { |
| 443 | rate_ctr_group_free(dl_tbf->m_dl_gprs_ctrs); |
| 444 | } |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 445 | tbf->bts->tbf_dl_freed(); |
| 446 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 447 | tbf->bts->tbf_dl_aborted(); |
| 448 | } |
| 449 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 450 | /* Give final measurement report */ |
| 451 | gprs_rlcmac_rssi_rep(tbf); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 452 | if (tbf->direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 453 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
Jacob Erlbeck | f04a5b3 | 2016-01-21 20:42:40 +0100 | [diff] [blame] | 454 | |
| 455 | dl_tbf->abort(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 456 | dl_tbf->cleanup(); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 457 | } |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 458 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 459 | LOGPTBF(tbf, LOGL_INFO, "free\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 460 | if (tbf->ul_ass_state != GPRS_RLCMAC_UL_ASS_NONE) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 461 | LOGPTBF(tbf, LOGL_ERROR, "Software error: Pending uplink " |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 462 | "assignment in state %s. This may not happen, because the " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 463 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 464 | "be sure not to free in this state. PLEASE FIX!\n", |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 465 | get_value_string(gprs_rlcmac_tbf_ul_ass_state_names, |
| 466 | tbf->ul_ass_state)); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 467 | if (tbf->dl_ass_state != GPRS_RLCMAC_DL_ASS_NONE) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 468 | LOGPTBF(tbf, LOGL_ERROR, "Software error: Pending downlink " |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 469 | "assignment in state %s. This may not happen, because the " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 470 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 471 | "be sure not to free in this state. PLEASE FIX!\n", |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 472 | get_value_string(gprs_rlcmac_tbf_dl_ass_state_names, |
| 473 | tbf->dl_ass_state)); |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 474 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 475 | tbf->stop_timers("freeing TBF"); |
Max | 5a6bcfb | 2017-09-01 14:36:44 +0200 | [diff] [blame] | 476 | /* TODO: Could/Should generate bssgp_tx_llc_discarded */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 477 | tbf_unlink_pdch(tbf); |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 478 | llist_del(&tbf->list()); |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 479 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 480 | if (tbf->ms()) |
| 481 | tbf->set_ms(NULL); |
| 482 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 483 | rate_ctr_group_free(tbf->m_ctrs); |
| 484 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 485 | LOGP(DRLCMAC, LOGL_DEBUG, "********** %s-TBF ends here **********\n", |
| 486 | (tbf->direction != GPRS_RLCMAC_UL_TBF) ? "DL" : "UL"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 487 | talloc_free(tbf); |
| 488 | } |
| 489 | |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 490 | int gprs_rlcmac_tbf::update() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 491 | { |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 492 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 493 | int rc; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 494 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 495 | if (direction != GPRS_RLCMAC_DL_TBF) |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 496 | return -EINVAL; |
| 497 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 498 | LOGP(DRLCMAC, LOGL_DEBUG, "********** DL-TBF update **********\n"); |
| 499 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 500 | tbf_unlink_pdch(this); |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 501 | rc = bts_data->alloc_algorithm(bts_data, ms(), this, |
| 502 | bts_data->alloc_algorithm_curst, 0, -1); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 503 | /* if no resource */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 504 | if (rc < 0) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 505 | LOGP(DRLCMAC, LOGL_ERROR, "No resource after update???\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 506 | return -rc; |
| 507 | } |
| 508 | |
Aravind Sirsikar | 0ee31cf | 2016-09-15 17:54:46 +0530 | [diff] [blame] | 509 | if (is_egprs_enabled()) { |
| 510 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
| 511 | if (dl_tbf) |
| 512 | dl_tbf->egprs_calc_window_size(); |
| 513 | } |
| 514 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 515 | return 0; |
| 516 | } |
| 517 | |
| 518 | int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf) |
| 519 | { |
| 520 | if (tbf->control_ts == 0xff) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 521 | LOGPTBF(tbf, LOGL_INFO, "Setting Control TS %d\n", |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 522 | tbf->first_common_ts); |
| 523 | else if (tbf->control_ts != tbf->first_common_ts) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 524 | LOGPTBF(tbf, LOGL_INFO, "Changing Control TS %d\n", |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 525 | tbf->first_common_ts); |
| 526 | tbf->control_ts = tbf->first_common_ts; |
| 527 | |
| 528 | return 0; |
| 529 | } |
| 530 | |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 531 | const char *gprs_rlcmac_tbf::tbf_state_name[] = { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 532 | "NULL", |
| 533 | "ASSIGN", |
| 534 | "FLOW", |
| 535 | "FINISHED", |
| 536 | "WAIT RELEASE", |
| 537 | "RELEASING", |
| 538 | }; |
| 539 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 540 | 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] | 541 | { |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 542 | if (t >= T_MAX) { |
| 543 | LOGPTBF(this, LOGL_ERROR, "attempting to stop unknown timer %s [%s]\n", |
| 544 | get_value_string(tbf_timers_names, t), reason); |
Max | 0bc982e | 2017-12-21 18:58:50 +0100 | [diff] [blame] | 545 | return; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 546 | } |
| 547 | |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 548 | if (osmo_timer_pending(&T[t])) { |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 549 | LOGPTBF(this, LOGL_DEBUG, "stopping timer %s [%s]\n", |
| 550 | get_value_string(tbf_timers_names, t), reason); |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 551 | osmo_timer_del(&T[t]); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 552 | } |
| 553 | } |
| 554 | |
| 555 | /* check if any of T31xx timer(s) are pending */ |
| 556 | bool gprs_rlcmac_tbf::timers_pending(enum tbf_timers t) |
| 557 | { |
| 558 | uint8_t i; |
| 559 | |
| 560 | if (t != T_MAX) |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 561 | return osmo_timer_pending(&T[t]); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 562 | |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 563 | /* 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] | 564 | for (i = T3169; i < T_MAX; i++) |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 565 | if (osmo_timer_pending(&T[i])) |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 566 | return true; |
| 567 | |
| 568 | return false; |
| 569 | } |
| 570 | |
| 571 | void gprs_rlcmac_tbf::stop_timers(const char *reason) |
| 572 | { |
| 573 | uint8_t i; |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 574 | /* we start with T0 because timer reset does not require any special handling */ |
| 575 | for (i = T0; i < T_MAX; i++) |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 576 | t_stop((enum tbf_timers)i, reason); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 577 | } |
| 578 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 579 | static inline void tbf_timeout_free(struct gprs_rlcmac_tbf *tbf, enum tbf_timers t, bool run_diag) |
| 580 | { |
| 581 | LOGPTBF(tbf, LOGL_NOTICE, "%s timeout expired, freeing TBF\n", |
| 582 | get_value_string(tbf_timers_names, t)); |
| 583 | |
| 584 | if (run_diag) |
| 585 | tbf->rlcmac_diag(); |
| 586 | |
| 587 | tbf_free(tbf); |
| 588 | } |
| 589 | |
| 590 | #define T_CBACK(t, diag) static void cb_##t(void *_tbf) { tbf_timeout_free((struct gprs_rlcmac_tbf *)_tbf, t, diag); } |
| 591 | |
| 592 | T_CBACK(T3169, true) |
| 593 | T_CBACK(T3191, true) |
| 594 | T_CBACK(T3193, false) |
| 595 | T_CBACK(T3195, true) |
| 596 | |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 597 | void gprs_rlcmac_tbf::t_start(enum tbf_timers t, uint32_t sec, uint32_t microsec, const char *reason, bool force, |
| 598 | const char *file, unsigned line) |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 599 | { |
| 600 | if (t >= T_MAX) { |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 601 | LOGPSRC(DRLCMAC, LOGL_ERROR, file, line, "%s attempting to start unknown timer %s [%s]\n", |
| 602 | tbf_name(this), get_value_string(tbf_timers_names, t), reason); |
Max | 0bc982e | 2017-12-21 18:58:50 +0100 | [diff] [blame] | 603 | return; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 604 | } |
| 605 | |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 606 | if (!force && osmo_timer_pending(&T[t])) |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 607 | return; |
| 608 | |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 609 | LOGPSRC(DRLCMAC, LOGL_DEBUG, file, line, "%s %sstarting timer %s [%s] with %u sec. %u microsec.\n", |
| 610 | tbf_name(this), osmo_timer_pending(&T[t]) ? "re" : "", |
| 611 | get_value_string(tbf_timers_names, t), reason, sec, microsec); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 612 | |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 613 | T[t].data = this; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 614 | |
| 615 | switch(t) { |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 616 | case T0: |
| 617 | T[t].cb = tbf_timer_cb; |
| 618 | break; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 619 | case T3169: |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 620 | T[t].cb = cb_T3169; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 621 | break; |
| 622 | case T3191: |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 623 | T[t].cb = cb_T3191; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 624 | break; |
| 625 | case T3193: |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 626 | T[t].cb = cb_T3193; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 627 | break; |
| 628 | case T3195: |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 629 | T[t].cb = cb_T3195; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 630 | break; |
| 631 | default: |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 632 | LOGPSRC(DRLCMAC, LOGL_ERROR, file, line, "%s attempting to set callback for unknown timer %s [%s]\n", |
| 633 | tbf_name(this), get_value_string(tbf_timers_names, t), reason); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 634 | } |
| 635 | |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 636 | osmo_timer_schedule(&T[t], sec, microsec); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 637 | } |
| 638 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 639 | int gprs_rlcmac_tbf::check_polling(uint32_t fn, uint8_t ts, |
| 640 | uint32_t *poll_fn_, unsigned int *rrbp_) |
| 641 | { |
Max | 9dabfa2 | 2017-05-16 16:10:45 +0200 | [diff] [blame] | 642 | uint32_t new_poll_fn = next_fn(fn, 13); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 643 | |
| 644 | if (!is_control_ts(ts)) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 645 | LOGPTBF(this, LOGL_DEBUG, "Polling cannot be " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 646 | "scheduled in this TS %d (first control TS %d)\n", |
| 647 | ts, control_ts); |
| 648 | return -EINVAL; |
| 649 | } |
| 650 | if (poll_state != GPRS_RLCMAC_POLL_NONE) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 651 | LOGPTBF(this, LOGL_DEBUG, "Polling is already scheduled\n"); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 652 | return -EBUSY; |
| 653 | } |
Max | 9dabfa2 | 2017-05-16 16:10:45 +0200 | [diff] [blame] | 654 | if (bts->sba()->find(trx->trx_no, ts, next_fn(fn, 13))) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 655 | LOGPTBF(this, LOGL_DEBUG, "Polling is already scheduled " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 656 | "for single block allocation at FN %d TS %d ...\n", |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 657 | new_poll_fn, ts); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 658 | return -EBUSY; |
| 659 | } |
| 660 | |
| 661 | *poll_fn_ = new_poll_fn; |
| 662 | *rrbp_ = 0; |
| 663 | |
| 664 | return 0; |
| 665 | } |
| 666 | |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 667 | 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] | 668 | { |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 669 | const char *chan = "UNKNOWN"; |
| 670 | |
| 671 | if (state_flags & (1 << (GPRS_RLCMAC_FLAG_CCCH))) |
| 672 | chan = "CCCH"; |
| 673 | |
| 674 | if (state_flags & (1 << (GPRS_RLCMAC_FLAG_PACCH))) |
| 675 | chan = "PACCH"; |
| 676 | |
| 677 | if ((state_flags & (1 << (GPRS_RLCMAC_FLAG_PACCH))) && (state_flags & (1 << (GPRS_RLCMAC_FLAG_CCCH)))) |
| 678 | LOGP(DRLCMACDL, LOGL_ERROR, |
| 679 | "%s Attempt to schedule polling on %s (FN=%d, TS=%d) with both CCCH and PACCH flags set - FIXME!\n", |
| 680 | name(), chan, poll_fn, poll_ts); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 681 | |
| 682 | /* schedule polling */ |
| 683 | poll_state = GPRS_RLCMAC_POLL_SCHED; |
| 684 | poll_fn = new_poll_fn; |
| 685 | poll_ts = ts; |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 686 | |
| 687 | switch (t) { |
| 688 | case GPRS_RLCMAC_POLL_UL_ASS: |
| 689 | ul_ass_state = GPRS_RLCMAC_UL_ASS_WAIT_ACK; |
| 690 | |
| 691 | LOGP(DRLCMACDL, LOGL_INFO, "%s Scheduled UL Assignment polling on %s (FN=%d, TS=%d)\n", |
| 692 | name(), chan, poll_fn, poll_ts); |
| 693 | break; |
| 694 | case GPRS_RLCMAC_POLL_DL_ASS: |
| 695 | dl_ass_state = GPRS_RLCMAC_DL_ASS_WAIT_ACK; |
| 696 | |
| 697 | LOGP(DRLCMACDL, LOGL_INFO, "%s Scheduled DL Assignment polling on %s (FN=%d, TS=%d)\n", |
| 698 | name(), chan, poll_fn, poll_ts); |
| 699 | break; |
| 700 | case GPRS_RLCMAC_POLL_UL_ACK: |
| 701 | ul_ack_state = GPRS_RLCMAC_UL_ACK_WAIT_ACK; |
| 702 | |
| 703 | LOGP(DRLCMACUL, LOGL_DEBUG, "%s Scheduled UL Acknowledgement polling on %s (FN=%d, TS=%d)\n", |
| 704 | name(), chan, poll_fn, poll_ts); |
| 705 | break; |
| 706 | case GPRS_RLCMAC_POLL_DL_ACK: |
| 707 | LOGP(DRLCMACDL, LOGL_DEBUG, "%s Scheduled DL Acknowledgement polling on %s (FN=%d, TS=%d)\n", |
| 708 | name(), chan, poll_fn, poll_ts); |
| 709 | break; |
| 710 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 711 | } |
| 712 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 713 | void gprs_rlcmac_tbf::poll_timeout() |
| 714 | { |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 715 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
| 716 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 717 | LOGPTBF(this, LOGL_NOTICE, "poll timeout for FN=%d, TS=%d (curr FN %d)\n", |
| 718 | poll_fn, poll_ts, bts->current_frame_number()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 719 | |
| 720 | poll_state = GPRS_RLCMAC_POLL_NONE; |
| 721 | |
Max | 59e4a4f | 2017-12-20 18:01:55 +0100 | [diff] [blame] | 722 | m_n3101++; |
| 723 | if (m_n3101 == bts->bts_data()->n3101) { |
| 724 | LOGP(DRLCMAC, LOGL_NOTICE, " N3101 exceeded MAX (%u)\n", bts->bts_data()->n3101); |
| 725 | set_state(GPRS_RLCMAC_RELEASING); |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 726 | T_START(this, T3169, bts->bts_data()->t3169, 0, "MAX N3101 reached", false); |
Max | 59e4a4f | 2017-12-20 18:01:55 +0100 | [diff] [blame] | 727 | return; |
| 728 | } |
| 729 | |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 730 | if (ul_tbf && ul_tbf->handle_ctrl_ack()) { |
| 731 | if (!ul_tbf->ctrl_ack_to_toggle()) { |
| 732 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling PACKET CONTROL ACK for PACKET UPLINK ACK\n"); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 733 | rlcmac_diag(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 734 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 735 | bts->rlc_ack_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 736 | bts->pkt_ul_ack_nack_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 737 | if (state_is(GPRS_RLCMAC_FINISHED)) { |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 738 | ul_tbf->m_n3103++; |
| 739 | 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] | 740 | LOGP(DRLCMAC, LOGL_NOTICE, |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 741 | "- N3103 exceeded\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 742 | bts->pkt_ul_ack_nack_poll_failed(); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 743 | ul_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 744 | T_START(ul_tbf, T3169, ul_tbf->bts->bts_data()->t3169, 0, "MAX N3103 reached", false); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 745 | return; |
| 746 | } |
| 747 | /* reschedule UL ack */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 748 | 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] | 749 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 750 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 751 | } else if (ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
| 752 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS))) { |
| 753 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 754 | "PACKET CONTROL ACK for PACKET UPLINK " |
| 755 | "ASSIGNMENT.\n"); |
| 756 | rlcmac_diag(); |
| 757 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 758 | } |
| 759 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 760 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 761 | bts->rlc_ass_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 762 | bts->pua_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 763 | if (n3105 == bts_data()->n3105) { |
| 764 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 765 | set_state(GPRS_RLCMAC_RELEASING); |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 766 | T_START(this, T3195, bts_data()->t3195, 0, "MAX N3105 reached", true); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 767 | bts->rlc_ass_failed(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 768 | bts->pua_poll_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 769 | return; |
| 770 | } |
| 771 | /* reschedule UL assignment */ |
| 772 | ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS; |
| 773 | } else if (dl_ass_state == GPRS_RLCMAC_DL_ASS_WAIT_ACK) { |
| 774 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS))) { |
| 775 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 776 | "PACKET CONTROL ACK for PACKET DOWNLINK " |
| 777 | "ASSIGNMENT.\n"); |
| 778 | rlcmac_diag(); |
| 779 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS); |
| 780 | } |
| 781 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 782 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 783 | bts->rlc_ass_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 784 | bts->pda_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 785 | if (n3105 == bts->bts_data()->n3105) { |
| 786 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 787 | set_state(GPRS_RLCMAC_RELEASING); |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 788 | T_START(this, T3195, bts_data()->t3195, 0, "MAX N3105 reached", true); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 789 | bts->rlc_ass_failed(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 790 | bts->pda_poll_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 791 | return; |
| 792 | } |
| 793 | /* reschedule DL assignment */ |
| 794 | dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS; |
| 795 | } else if (direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 796 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 797 | |
| 798 | 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] | 799 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 800 | "PACKET DOWNLINK ACK.\n"); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 801 | dl_tbf->rlcmac_diag(); |
| 802 | 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] | 803 | } |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 804 | dl_tbf->n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 805 | if (dl_tbf->state_is(GPRS_RLCMAC_RELEASING)) |
| 806 | bts->rlc_rel_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 807 | else { |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 808 | bts->rlc_ack_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 809 | bts->pkt_dl_ack_nack_poll_timedout(); |
| 810 | } |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 811 | if (dl_tbf->n3105 == dl_tbf->bts->bts_data()->n3105) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 812 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 813 | dl_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 814 | T_START(dl_tbf, T3195, dl_tbf->bts_data()->t3195, 0, "MAX N3105 reached", true); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 815 | bts->pkt_dl_ack_nack_poll_failed(); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 816 | bts->rlc_ack_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 817 | return; |
| 818 | } |
| 819 | /* resend IMM.ASS on CCCH on timeout */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 820 | if ((dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)) |
| 821 | && !(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 822 | 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] | 823 | imsi()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 824 | /* send immediate assignment */ |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 825 | dl_tbf->bts->snd_dl_ass(dl_tbf, 0, imsi()); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 826 | dl_tbf->m_wait_confirm = 1; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 827 | } |
| 828 | } else |
| 829 | LOGP(DRLCMAC, LOGL_ERROR, "- Poll Timeout, but no event!\n"); |
| 830 | } |
| 831 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 832 | static int setup_tbf(struct gprs_rlcmac_tbf *tbf, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 833 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 834 | 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] | 835 | { |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 836 | int rc; |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 837 | struct gprs_rlcmac_bts *bts; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 838 | if (!tbf) |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 839 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 840 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 841 | bts = tbf->bts->bts_data(); |
Daniel Willmann | 1b3864f | 2014-07-30 13:25:19 +0200 | [diff] [blame] | 842 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 843 | if (ms->mode() == GprsCodingScheme::EGPRS) |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 844 | ms_class = egprs_ms_class; |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 845 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 846 | tbf->m_created_ts = time(NULL); |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 847 | tbf->set_ms_class(ms_class); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 848 | /* select algorithm */ |
Jacob Erlbeck | e2e004e | 2015-06-18 17:16:26 +0200 | [diff] [blame] | 849 | rc = bts->alloc_algorithm(bts, ms, tbf, bts->alloc_algorithm_curst, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 850 | single_slot, use_trx); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 851 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 852 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 853 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 854 | } |
| 855 | /* assign control ts */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 856 | rc = tbf_assign_control_ts(tbf); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 857 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 858 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 859 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 860 | } |
| 861 | |
| 862 | /* set timestamp */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 863 | gettimeofday(&tbf->meas.rssi_tv, NULL); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 864 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 865 | tbf->set_ms(ms); |
| 866 | |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 867 | LOGP(DRLCMAC, LOGL_INFO, |
| 868 | "Allocated %s: trx = %d, ul_slots = %02x, dl_slots = %02x\n", |
| 869 | tbf->name(), tbf->trx->trx_no, tbf->ul_slots(), tbf->dl_slots()); |
| 870 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 871 | tbf->m_ctrs = rate_ctr_group_alloc(tbf, &tbf_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 872 | if (!tbf->m_ctrs) { |
| 873 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate TBF counters\n"); |
| 874 | return -1; |
| 875 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 876 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 877 | return 0; |
| 878 | } |
| 879 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 880 | gprs_rlcmac_ul_tbf::gprs_rlcmac_ul_tbf(BTS *bts_) : |
| 881 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_UL_TBF), |
| 882 | m_rx_counter(0), |
| 883 | m_n3103(0), |
| 884 | m_contention_resolution_done(0), |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 885 | m_final_ack_sent(0), |
| 886 | m_ul_gprs_ctrs(NULL), |
| 887 | m_ul_egprs_ctrs(NULL) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 888 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 889 | memset(&m_usf, 0, sizeof(m_usf)); |
| 890 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 891 | |
| 892 | static int ul_tbf_dtor(struct gprs_rlcmac_ul_tbf *tbf) |
| 893 | { |
| 894 | tbf->~gprs_rlcmac_ul_tbf(); |
| 895 | return 0; |
| 896 | } |
| 897 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 898 | static void setup_egprs_mode(gprs_rlcmac_bts *bts, GprsMs *ms) |
| 899 | { |
| 900 | if (GprsCodingScheme::getEgprsByNum(bts->max_mcs_ul).isEgprsGmsk() && |
| 901 | GprsCodingScheme::getEgprsByNum(bts->max_mcs_dl).isEgprsGmsk() && |
| 902 | ms->mode() != GprsCodingScheme::EGPRS) |
| 903 | { |
| 904 | ms->set_mode(GprsCodingScheme::EGPRS_GMSK); |
| 905 | } else { |
| 906 | ms->set_mode(GprsCodingScheme::EGPRS); |
| 907 | } |
| 908 | } |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 909 | |
| 910 | 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] | 911 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 912 | 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] | 913 | { |
| 914 | struct gprs_rlcmac_ul_tbf *tbf; |
| 915 | int rc; |
| 916 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 917 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
| 918 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 919 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 920 | bts->bts->tbf_failed_egprs_only(); |
| 921 | return NULL; |
| 922 | } |
| 923 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 924 | LOGP(DRLCMAC, LOGL_DEBUG, "********** UL-TBF starts here **********\n"); |
| 925 | LOGP(DRLCMAC, LOGL_INFO, "Allocating UL TBF: MS_CLASS=%d/%d\n", |
| 926 | ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 927 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 928 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 929 | |
| 930 | if (!tbf) |
| 931 | return NULL; |
| 932 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 933 | talloc_set_destructor(tbf, ul_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 934 | new (tbf) gprs_rlcmac_ul_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 935 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 936 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 937 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 938 | |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 939 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 940 | tbf->enable_egprs(); |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 941 | setup_egprs_mode(bts, ms); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 942 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 943 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 944 | } |
| 945 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 946 | rc = setup_tbf(tbf, ms, use_trx, ms_class, egprs_ms_class, single_slot); |
sivasankari | 8adfcd0 | 2017-01-16 15:41:21 +0530 | [diff] [blame] | 947 | |
| 948 | if (tbf->is_egprs_enabled()) |
| 949 | tbf->egprs_calc_ulwindow_size(); |
| 950 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 951 | /* if no resource */ |
| 952 | if (rc < 0) { |
| 953 | talloc_free(tbf); |
| 954 | return NULL; |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 955 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 956 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 957 | tbf->m_ul_egprs_ctrs = rate_ctr_group_alloc(tbf, &tbf_ul_egprs_ctrg_desc, 0); |
| 958 | tbf->m_ul_gprs_ctrs = rate_ctr_group_alloc(tbf, &tbf_ul_gprs_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 959 | if (!tbf->m_ul_egprs_ctrs || !tbf->m_ul_gprs_ctrs) { |
| 960 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate TBF UL counters\n"); |
| 961 | talloc_free(tbf); |
| 962 | return NULL; |
| 963 | } |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 964 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 965 | llist_add(&tbf->list(), &bts->bts->ul_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 966 | tbf->bts->tbf_ul_created(); |
| 967 | |
| 968 | return tbf; |
| 969 | } |
| 970 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 971 | gprs_rlcmac_dl_tbf::BandWidth::BandWidth() : |
| 972 | dl_bw_octets(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 973 | dl_throughput(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 974 | dl_loss_lost(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 975 | dl_loss_received(0) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 976 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 977 | timerclear(&dl_bw_tv); |
| 978 | timerclear(&dl_loss_tv); |
| 979 | } |
| 980 | |
| 981 | gprs_rlcmac_dl_tbf::gprs_rlcmac_dl_tbf(BTS *bts_) : |
| 982 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_DL_TBF), |
| 983 | m_tx_counter(0), |
| 984 | m_wait_confirm(0), |
| 985 | m_dl_ack_requested(false), |
| 986 | m_last_dl_poll_fn(0), |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 987 | m_last_dl_drained_fn(0), |
| 988 | m_dl_gprs_ctrs(NULL), |
| 989 | m_dl_egprs_ctrs(NULL) |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 990 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 991 | memset(&m_llc_timer, 0, sizeof(m_llc_timer)); |
| 992 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 993 | |
| 994 | static int dl_tbf_dtor(struct gprs_rlcmac_dl_tbf *tbf) |
| 995 | { |
| 996 | tbf->~gprs_rlcmac_dl_tbf(); |
| 997 | return 0; |
| 998 | } |
| 999 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1000 | 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] | 1001 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1002 | 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] | 1003 | { |
| 1004 | struct gprs_rlcmac_dl_tbf *tbf; |
| 1005 | int rc; |
| 1006 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 1007 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 3b1c553 | 2016-01-20 12:30:46 +0100 | [diff] [blame] | 1008 | if (ms_class > 0) { |
| 1009 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 1010 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 1011 | bts->bts->tbf_failed_egprs_only(); |
| 1012 | return NULL; |
| 1013 | } |
| 1014 | egprs_ms_class = 1; |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 1015 | } |
| 1016 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1017 | LOGP(DRLCMAC, LOGL_DEBUG, "********** DL-TBF starts here **********\n"); |
| 1018 | LOGP(DRLCMAC, LOGL_INFO, "Allocating DL TBF: MS_CLASS=%d/%d\n", |
| 1019 | ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1020 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 1021 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_dl_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1022 | |
| 1023 | if (!tbf) |
| 1024 | return NULL; |
| 1025 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 1026 | talloc_set_destructor(tbf, dl_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 1027 | new (tbf) gprs_rlcmac_dl_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1028 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 1029 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1030 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1031 | |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 1032 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
| 1033 | tbf->enable_egprs(); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 1034 | setup_egprs_mode(bts, ms); |
| 1035 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 1036 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
| 1037 | } |
| 1038 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1039 | rc = setup_tbf(tbf, ms, use_trx, ms_class, 0, single_slot); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1040 | /* if no resource */ |
| 1041 | if (rc < 0) { |
| 1042 | talloc_free(tbf); |
| 1043 | return NULL; |
| 1044 | } |
| 1045 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1046 | if (tbf->is_egprs_enabled()) { |
Aravind Sirsikar | 8e70bb5 | 2016-09-15 17:51:16 +0530 | [diff] [blame] | 1047 | tbf->egprs_calc_window_size(); |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1048 | tbf->m_dl_egprs_ctrs = rate_ctr_group_alloc(tbf, &tbf_dl_egprs_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 1049 | if (!tbf->m_dl_egprs_ctrs) { |
| 1050 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate EGPRS DL counters\n"); |
| 1051 | talloc_free(tbf); |
| 1052 | return NULL; |
| 1053 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1054 | } else { |
| 1055 | tbf->m_dl_gprs_ctrs = rate_ctr_group_alloc(tbf, &tbf_dl_gprs_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 1056 | if (!tbf->m_dl_gprs_ctrs) { |
| 1057 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate GPRS DL counters\n"); |
| 1058 | talloc_free(tbf); |
| 1059 | return NULL; |
| 1060 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1061 | } |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 1062 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1063 | llist_add(&tbf->list(), &bts->bts->dl_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1064 | tbf->bts->tbf_dl_created(); |
| 1065 | |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 1066 | tbf->m_last_dl_poll_fn = -1; |
Jacob Erlbeck | 3bed5d1 | 2015-03-19 11:22:38 +0100 | [diff] [blame] | 1067 | tbf->m_last_dl_drained_fn = -1; |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 1068 | |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 1069 | gettimeofday(&tbf->m_bw.dl_bw_tv, NULL); |
| 1070 | gettimeofday(&tbf->m_bw.dl_loss_tv, NULL); |
| 1071 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1072 | return tbf; |
| 1073 | } |
| 1074 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 1075 | static void tbf_timer_cb(void *_tbf) |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1076 | { |
| 1077 | struct gprs_rlcmac_tbf *tbf = (struct gprs_rlcmac_tbf *)_tbf; |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 1078 | tbf->handle_timeout(); |
| 1079 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1080 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 1081 | void gprs_rlcmac_tbf::handle_timeout() |
| 1082 | { |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 1083 | LOGPTBF(this, LOGL_DEBUG, "timer 0 expired.\n"); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 1084 | |
| 1085 | /* assignment */ |
| 1086 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) { |
| 1087 | if (state_is(GPRS_RLCMAC_ASSIGN)) { |
| 1088 | LOGPTBF(this, LOGL_NOTICE, "releasing due to PACCH assignment timeout.\n"); |
| 1089 | tbf_free(this); |
| 1090 | return; |
| 1091 | } else |
| 1092 | LOGPTBF(this, LOGL_ERROR, "Error: TBF is not in assign state\n"); |
| 1093 | } |
| 1094 | |
| 1095 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) { |
| 1096 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
| 1097 | dl_tbf->m_wait_confirm = 0; |
| 1098 | if (dl_tbf->state_is(GPRS_RLCMAC_ASSIGN)) { |
| 1099 | tbf_assign_control_ts(dl_tbf); |
| 1100 | |
| 1101 | if (!dl_tbf->upgrade_to_multislot) { |
| 1102 | /* change state to FLOW, so scheduler |
| 1103 | * will start transmission */ |
| 1104 | dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
| 1105 | return; |
| 1106 | } |
| 1107 | |
| 1108 | /* This tbf can be upgraded to use multiple DL |
| 1109 | * timeslots and now that there is already one |
| 1110 | * slot assigned send another DL assignment via |
| 1111 | * PDCH. */ |
| 1112 | |
| 1113 | /* keep to flags */ |
| 1114 | dl_tbf->state_flags &= GPRS_RLCMAC_FLAG_TO_MASK; |
| 1115 | |
| 1116 | dl_tbf->update(); |
| 1117 | |
| 1118 | dl_tbf->trigger_ass(dl_tbf); |
| 1119 | } else |
| 1120 | 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] | 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | int gprs_rlcmac_tbf::rlcmac_diag() |
| 1125 | { |
| 1126 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) |
| 1127 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on CCCH\n"); |
| 1128 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) |
| 1129 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on PACCH\n"); |
| 1130 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_UL_DATA))) |
| 1131 | LOGP(DRLCMAC, LOGL_NOTICE, "- Uplink data was received\n"); |
| 1132 | else if (direction == GPRS_RLCMAC_UL_TBF) |
| 1133 | LOGP(DRLCMAC, LOGL_NOTICE, "- No uplink data received yet\n"); |
| 1134 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) |
| 1135 | LOGP(DRLCMAC, LOGL_NOTICE, "- Downlink ACK was received\n"); |
| 1136 | else if (direction == GPRS_RLCMAC_DL_TBF) |
| 1137 | LOGP(DRLCMAC, LOGL_NOTICE, "- No downlink ACK received yet\n"); |
| 1138 | |
| 1139 | return 0; |
| 1140 | } |
| 1141 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1142 | 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] | 1143 | { |
| 1144 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1145 | struct gprs_rlcmac_dl_tbf *new_dl_tbf = NULL; |
Holger Hans Peter Freyther | 9977e15 | 2013-11-24 22:52:10 +0100 | [diff] [blame] | 1146 | int poll_ass_dl = 1; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1147 | unsigned int rrbp = 0; |
| 1148 | uint32_t new_poll_fn = 0; |
| 1149 | int rc; |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 1150 | bool old_tfi_is_valid = is_tfi_assigned(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1151 | |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1152 | if (direction == GPRS_RLCMAC_DL_TBF && !is_control_ts(ts)) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1153 | LOGP(DRLCMAC, LOGL_NOTICE, "Cannot poll for downlink " |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1154 | "assigment, because MS cannot reply. (TS=%d, " |
| 1155 | "first common TS=%d)\n", ts, |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1156 | first_common_ts); |
| 1157 | poll_ass_dl = 0; |
| 1158 | } |
| 1159 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1160 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1161 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) |
| 1162 | { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1163 | LOGPTBFUL(this, LOGL_DEBUG, |
| 1164 | "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] | 1165 | return NULL; |
| 1166 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1167 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1168 | if (rc < 0) |
| 1169 | return NULL; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1170 | } |
| 1171 | |
| 1172 | /* on uplink TBF we get the downlink TBF to be assigned. */ |
| 1173 | if (direction == GPRS_RLCMAC_UL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 1174 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1175 | |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1176 | /* be sure to check first, if contention resolution is done, |
| 1177 | * otherwise we cannot send the assignment yet */ |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 1178 | if (!ul_tbf->m_contention_resolution_done) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1179 | LOGP(DRLCMAC, LOGL_DEBUG, "Cannot assign DL TBF now, " |
| 1180 | "because contention resolution is not " |
| 1181 | "finished.\n"); |
| 1182 | return NULL; |
| 1183 | } |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 1184 | } |
| 1185 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1186 | if (ms()) |
| 1187 | new_dl_tbf = ms()->dl_tbf(); |
| 1188 | |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1189 | if (!new_dl_tbf) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1190 | LOGPTBFDL(this, LOGL_ERROR, |
| 1191 | "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] | 1192 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 1193 | return NULL; |
| 1194 | } |
| 1195 | |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 1196 | if (new_dl_tbf == as_dl_tbf(this)) |
| 1197 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 1198 | "New and old TBF are the same %s\n", name()); |
| 1199 | |
| 1200 | if (old_tfi_is_valid && !new_dl_tbf->is_tlli_valid()) { |
| 1201 | LOGP(DRLCMACDL, LOGL_ERROR, |
| 1202 | "The old TFI is not assigned and there is no " |
| 1203 | "TLLI. Old TBF %s, new TBF %s\n", |
| 1204 | name(), new_dl_tbf->name()); |
| 1205 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 1206 | return NULL; |
| 1207 | } |
| 1208 | |
Holger Hans Peter Freyther | f5c9747 | 2014-12-26 18:32:00 +0100 | [diff] [blame] | 1209 | new_dl_tbf->was_releasing = was_releasing; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1210 | msg = msgb_alloc(23, "rlcmac_dl_ass"); |
| 1211 | if (!msg) |
| 1212 | return NULL; |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1213 | bitvec *ass_vec = bitvec_alloc(23, tall_pcu_ctx); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1214 | if (!ass_vec) { |
| 1215 | msgb_free(msg); |
| 1216 | return NULL; |
| 1217 | } |
| 1218 | bitvec_unhex(ass_vec, |
| 1219 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1220 | LOGPTBF(new_dl_tbf, LOGL_INFO, "start Packet Downlink Assignment (PACCH)\n"); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1221 | 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] | 1222 | Encoding::write_packet_downlink_assignment(mac_control_block, |
| 1223 | old_tfi_is_valid, m_tfi, (direction == GPRS_RLCMAC_DL_TBF), |
| 1224 | new_dl_tbf, poll_ass_dl, rrbp, |
| 1225 | bts_data()->alpha, bts_data()->gamma, -1, 0, |
Jacob Erlbeck | 166c9fc | 2016-01-07 16:04:29 +0100 | [diff] [blame] | 1226 | is_egprs_enabled()); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1227 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++\n"); |
| 1228 | encode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 1229 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 1230 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Downlink Assignment -------------------------\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 1231 | bts->pkt_dl_assignemnt(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1232 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1233 | bitvec_free(ass_vec); |
| 1234 | talloc_free(mac_control_block); |
| 1235 | |
| 1236 | if (poll_ass_dl) { |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 1237 | 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] | 1238 | } else { |
| 1239 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 1240 | new_dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1241 | tbf_assign_control_ts(new_dl_tbf); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1242 | /* stop pending assignment timer */ |
Max | b2de1f7 | 2017-12-20 18:05:29 +0100 | [diff] [blame] | 1243 | new_dl_tbf->t_stop(T0, "assignment (DL-TBF)"); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1244 | |
| 1245 | } |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1246 | |
| 1247 | return msg; |
| 1248 | } |
| 1249 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1250 | struct msgb *gprs_rlcmac_tbf::create_packet_access_reject() |
| 1251 | { |
| 1252 | struct msgb *msg; |
| 1253 | |
| 1254 | msg = msgb_alloc(23, "rlcmac_ul_ass_rej"); |
| 1255 | |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1256 | bitvec *packet_access_rej = bitvec_alloc(23, tall_pcu_ctx); |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1257 | |
| 1258 | bitvec_unhex(packet_access_rej, |
| 1259 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
| 1260 | |
| 1261 | Encoding::write_packet_access_reject( |
| 1262 | packet_access_rej, tlli()); |
| 1263 | |
sivasankari | 168911b | 2016-11-25 19:53:36 +0530 | [diff] [blame] | 1264 | bts->pkt_access_reject(); |
| 1265 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1266 | bitvec_pack(packet_access_rej, msgb_put(msg, 23)); |
| 1267 | |
| 1268 | bitvec_free(packet_access_rej); |
| 1269 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1270 | |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1271 | /* Start Tmr only if it is UL TBF */ |
| 1272 | if (direction == GPRS_RLCMAC_UL_TBF) |
Max | 467f633 | 2017-12-20 18:13:29 +0100 | [diff] [blame] | 1273 | T_START(this, T0, 0, T_REJ_PACCH_USEC, "reject (PACCH)", true); |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1274 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1275 | return msg; |
| 1276 | |
| 1277 | } |
| 1278 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1279 | 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] | 1280 | { |
| 1281 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1282 | struct gprs_rlcmac_ul_tbf *new_tbf = NULL; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1283 | int rc; |
| 1284 | unsigned int rrbp; |
| 1285 | uint32_t new_poll_fn; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1286 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1287 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1288 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1289 | LOGPTBFUL(this, LOGL_DEBUG, |
| 1290 | "Polling is already scheduled, so we must wait for the uplink assignment...\n"); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1291 | return NULL; |
| 1292 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1293 | |
| 1294 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1295 | if (rc < 0) |
| 1296 | return NULL; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1297 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1298 | if (ms()) |
| 1299 | new_tbf = ms()->ul_tbf(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1300 | if (!new_tbf) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1301 | LOGPTBFUL(this, LOGL_ERROR, |
| 1302 | "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] | 1303 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1304 | return NULL; |
| 1305 | } |
| 1306 | |
| 1307 | msg = msgb_alloc(23, "rlcmac_ul_ass"); |
| 1308 | if (!msg) |
| 1309 | return NULL; |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1310 | LOGPTBF(new_tbf, LOGL_INFO, "start Packet Uplink Assignment (PACCH)\n"); |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1311 | bitvec *ass_vec = bitvec_alloc(23, tall_pcu_ctx); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1312 | if (!ass_vec) { |
| 1313 | msgb_free(msg); |
| 1314 | return NULL; |
| 1315 | } |
| 1316 | bitvec_unhex(ass_vec, |
| 1317 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1318 | Encoding::write_packet_uplink_assignment(bts_data(), ass_vec, m_tfi, |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1319 | (direction == GPRS_RLCMAC_DL_TBF), tlli(), |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1320 | is_tlli_valid(), new_tbf, 1, rrbp, bts_data()->alpha, |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 1321 | bts_data()->gamma, -1, is_egprs_enabled()); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1322 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1323 | RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)talloc_zero(tall_pcu_ctx, RlcMacDownlink_t); |
| 1324 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++\n"); |
| 1325 | decode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 1326 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 1327 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Uplink Assignment -------------------------\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 1328 | bts->pkt_ul_assignment(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1329 | bitvec_free(ass_vec); |
| 1330 | talloc_free(mac_control_block); |
| 1331 | |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 1332 | 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] | 1333 | |
| 1334 | return msg; |
| 1335 | } |
| 1336 | |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1337 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_trx *trx) |
| 1338 | { |
Jacob Erlbeck | 3a10dbd | 2015-07-10 19:52:37 +0200 | [diff] [blame] | 1339 | for (uint8_t ts = 0; ts < 8; ts++) |
| 1340 | free_all(&trx->pdch[ts]); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1341 | } |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1342 | |
| 1343 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_pdch *pdch) |
| 1344 | { |
| 1345 | for (uint8_t tfi = 0; tfi < 32; tfi++) { |
| 1346 | struct gprs_rlcmac_tbf *tbf; |
| 1347 | |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1348 | tbf = pdch->ul_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1349 | if (tbf) |
| 1350 | tbf_free(tbf); |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1351 | tbf = pdch->dl_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1352 | if (tbf) |
| 1353 | tbf_free(tbf); |
| 1354 | } |
| 1355 | } |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1356 | |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1357 | int gprs_rlcmac_tbf::establish_dl_tbf_on_pacch() |
| 1358 | { |
| 1359 | struct gprs_rlcmac_dl_tbf *new_tbf = NULL; |
| 1360 | |
| 1361 | bts->tbf_reused(); |
| 1362 | |
| 1363 | new_tbf = tbf_alloc_dl_tbf(bts->bts_data(), ms(), |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1364 | this->trx->trx_no, ms_class(), |
| 1365 | ms() ? ms()->egprs_ms_class() : 0, 0); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1366 | |
| 1367 | if (!new_tbf) { |
| 1368 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
| 1369 | return -1; |
| 1370 | } |
| 1371 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1372 | LOGPTBF(this, LOGL_DEBUG, "Trigger downlink assignment on PACCH\n"); |
Max | a10c398 | 2017-07-07 18:25:41 +0200 | [diff] [blame] | 1373 | new_tbf->trigger_ass(this); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1374 | |
| 1375 | return 0; |
| 1376 | } |
| 1377 | |
Jacob Erlbeck | e8f5fe5 | 2015-12-14 13:23:15 +0100 | [diff] [blame] | 1378 | 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] | 1379 | { |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1380 | struct gprs_rlcmac_tbf *dl_tbf = NULL; |
| 1381 | struct gprs_rlcmac_tbf *ul_tbf = NULL; |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1382 | GprsMs *old_ms; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1383 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1384 | OSMO_ASSERT(direction == GPRS_RLCMAC_UL_TBF); |
| 1385 | |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1386 | old_ms = bts->ms_by_tlli(new_tlli); |
Jacob Erlbeck | 9659d59 | 2015-09-01 11:06:14 +0200 | [diff] [blame] | 1387 | /* Keep the old MS object for the update_ms() */ |
| 1388 | GprsMs::Guard guard(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1389 | if (old_ms) { |
| 1390 | /* Get them before calling set_ms() */ |
| 1391 | dl_tbf = old_ms->dl_tbf(); |
| 1392 | ul_tbf = old_ms->ul_tbf(); |
| 1393 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1394 | if (!ms()) |
| 1395 | set_ms(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1396 | } |
| 1397 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1398 | if (dl_tbf && dl_tbf->ms() != ms()) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1399 | LOGPTBFUL(dl_tbf, LOGL_NOTICE, |
| 1400 | "Got RACH from TLLI=0x%08x while TBF still exists: killing pending DL TBF\n", new_tlli); |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1401 | tbf_free(dl_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1402 | dl_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1403 | } |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1404 | if (ul_tbf && ul_tbf->ms() != ms()) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1405 | LOGPTBFUL(ul_tbf, LOGL_NOTICE, |
| 1406 | "Got RACH from TLLI=0x%08x while TBF still exists: killing pending UL TBF\n", new_tlli); |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1407 | tbf_free(ul_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1408 | ul_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1409 | } |
Jacob Erlbeck | 5f93f85 | 2016-01-21 20:48:39 +0100 | [diff] [blame] | 1410 | |
| 1411 | /* The TLLI has been taken from an UL message */ |
| 1412 | update_ms(new_tlli, GPRS_RLCMAC_UL_TBF); |
| 1413 | |
| 1414 | #if 0 /* REMOVEME ??? */ |
| 1415 | if (ms()->need_dl_tbf()) |
| 1416 | establish_dl_tbf_on_pacch(); |
| 1417 | #endif |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1418 | return 1; |
| 1419 | } |
| 1420 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1421 | const char *tbf_name(gprs_rlcmac_tbf *tbf) |
| 1422 | { |
Alexander Couzens | e04fd0c | 2016-05-31 13:18:01 +0200 | [diff] [blame] | 1423 | return tbf ? tbf->name() : "(no TBF)"; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1424 | } |
| 1425 | |
| 1426 | const char *gprs_rlcmac_tbf::name() const |
| 1427 | { |
| 1428 | snprintf(m_name_buf, sizeof(m_name_buf) - 1, |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1429 | "TBF(TFI=%d TLLI=0x%08x DIR=%s STATE=%s%s)", |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1430 | m_tfi, tlli(), |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1431 | direction == GPRS_RLCMAC_UL_TBF ? "UL" : "DL", |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1432 | state_name(), |
| 1433 | is_egprs_enabled() ? " EGPRS" : "" |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1434 | ); |
| 1435 | m_name_buf[sizeof(m_name_buf) - 1] = '\0'; |
| 1436 | return m_name_buf; |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1437 | } |
Holger Hans Peter Freyther | 758dc12 | 2013-11-06 20:39:45 +0100 | [diff] [blame] | 1438 | |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1439 | void gprs_rlcmac_tbf::rotate_in_list() |
| 1440 | { |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1441 | llist_del(&list()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1442 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1443 | llist_add(&list(), &bts->ul_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1444 | else |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1445 | llist_add(&list(), &bts->dl_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1446 | } |
Holger Hans Peter Freyther | 8f399de | 2013-12-25 20:22:35 +0100 | [diff] [blame] | 1447 | |
| 1448 | uint8_t gprs_rlcmac_tbf::tsc() const |
| 1449 | { |
| 1450 | return trx->pdch[first_ts].tsc; |
| 1451 | } |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 1452 | |
Jacob Erlbeck | 617c712 | 2015-06-30 09:18:30 +0200 | [diff] [blame] | 1453 | uint8_t gprs_rlcmac_tbf::dl_slots() const |
| 1454 | { |
| 1455 | uint8_t slots = 0; |
| 1456 | size_t i; |
| 1457 | |
| 1458 | if (direction == GPRS_RLCMAC_UL_TBF) |
| 1459 | return 0; |
| 1460 | |
| 1461 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1462 | if (pdch[i]) |
| 1463 | slots |= 1 << i; |
| 1464 | |
| 1465 | return slots; |
| 1466 | } |
| 1467 | |
| 1468 | uint8_t gprs_rlcmac_tbf::ul_slots() const |
| 1469 | { |
| 1470 | uint8_t slots = 0; |
| 1471 | size_t i; |
| 1472 | |
| 1473 | if (direction == GPRS_RLCMAC_DL_TBF) { |
| 1474 | if (control_ts < 8) |
| 1475 | slots |= 1 << control_ts; |
| 1476 | if (first_common_ts < 8) |
| 1477 | slots |= 1 << first_common_ts; |
| 1478 | |
| 1479 | return slots; |
| 1480 | } |
| 1481 | |
| 1482 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1483 | if (pdch[i]) |
| 1484 | slots |= 1 << i; |
| 1485 | |
| 1486 | return slots; |
| 1487 | } |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1488 | |
| 1489 | bool gprs_rlcmac_tbf::is_control_ts(uint8_t ts) const |
| 1490 | { |
| 1491 | return ts == control_ts; |
| 1492 | } |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1493 | |
Max | ea98b7d | 2018-01-04 15:13:27 +0100 | [diff] [blame^] | 1494 | gprs_rlc_ul_window *gprs_rlcmac_ul_tbf::window() |
| 1495 | { |
| 1496 | return &m_window; |
| 1497 | } |
| 1498 | |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1499 | struct gprs_rlcmac_ul_tbf *handle_tbf_reject(struct gprs_rlcmac_bts *bts, |
| 1500 | GprsMs *ms, uint32_t tlli, uint8_t trx_no, uint8_t ts) |
| 1501 | { |
| 1502 | struct gprs_rlcmac_ul_tbf *ul_tbf = NULL; |
| 1503 | struct gprs_rlcmac_trx *trx = &bts->trx[trx_no]; |
| 1504 | |
| 1505 | ul_tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf); |
| 1506 | if (!ul_tbf) |
| 1507 | return ul_tbf; |
| 1508 | |
| 1509 | talloc_set_destructor(ul_tbf, ul_tbf_dtor); |
| 1510 | new (ul_tbf) gprs_rlcmac_ul_tbf(bts->bts); |
| 1511 | if (!ms) |
| 1512 | ms = bts->bts->ms_alloc(0, 0); |
| 1513 | |
| 1514 | ms->set_tlli(tlli); |
| 1515 | |
| 1516 | llist_add(&ul_tbf->list(), &bts->bts->ul_tbfs()); |
| 1517 | ul_tbf->bts->tbf_ul_created(); |
Max | 8dce1de | 2018-01-02 14:17:04 +0100 | [diff] [blame] | 1518 | ul_tbf->set_assigned_on(GPRS_RLCMAC_FLAG_PACCH, false); |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1519 | |
| 1520 | ul_tbf->set_ms(ms); |
| 1521 | ul_tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF); |
| 1522 | ul_tbf->ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ; |
| 1523 | ul_tbf->control_ts = ts; |
| 1524 | ul_tbf->trx = trx; |
| 1525 | ul_tbf->m_ctrs = rate_ctr_group_alloc(ul_tbf, &tbf_ctrg_desc, 0); |
| 1526 | ul_tbf->m_ul_egprs_ctrs = rate_ctr_group_alloc(ul_tbf, |
| 1527 | &tbf_ul_egprs_ctrg_desc, 0); |
| 1528 | ul_tbf->m_ul_gprs_ctrs = rate_ctr_group_alloc(ul_tbf, |
| 1529 | &tbf_ul_gprs_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 1530 | if (!ul_tbf->m_ctrs || !ul_tbf->m_ul_egprs_ctrs || !ul_tbf->m_ul_gprs_ctrs) { |
| 1531 | LOGP(DRLCMAC, LOGL_ERROR, "Cound not allocate TBF UL rate counters\n"); |
| 1532 | talloc_free(ul_tbf); |
| 1533 | return NULL; |
| 1534 | } |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1535 | |
| 1536 | return ul_tbf; |
| 1537 | } |