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> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 38 | } |
| 39 | |
| 40 | #include <errno.h> |
| 41 | #include <string.h> |
| 42 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 43 | extern void *tall_pcu_ctx; |
| 44 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 45 | static void tbf_timer_cb(void *_tbf); |
| 46 | |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 47 | const struct value_string gprs_rlcmac_tbf_dl_ass_state_names[] = { |
| 48 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_NONE), |
| 49 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_SEND_ASS), |
| 50 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_WAIT_ACK), |
| 51 | { 0, NULL } |
| 52 | }; |
| 53 | |
| 54 | const struct value_string gprs_rlcmac_tbf_ul_ass_state_names[] = { |
| 55 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_NONE), |
| 56 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_SEND_ASS), |
| 57 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ), |
| 58 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_WAIT_ACK), |
| 59 | { 0, NULL } |
| 60 | }; |
| 61 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 62 | static const struct value_string tbf_timers_names[] = { |
| 63 | OSMO_VALUE_STRING(T3169), |
| 64 | OSMO_VALUE_STRING(T3191), |
| 65 | OSMO_VALUE_STRING(T3193), |
| 66 | OSMO_VALUE_STRING(T3195), |
| 67 | { 0, NULL } |
| 68 | }; |
| 69 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 70 | static const struct rate_ctr_desc tbf_ctr_description[] = { |
| 71 | { "rlc.nacked", "RLC Nacked " }, |
| 72 | }; |
| 73 | |
| 74 | static const struct rate_ctr_desc tbf_dl_gprs_ctr_description[] = { |
| 75 | { "gprs.downlink.cs1", "CS1 " }, |
| 76 | { "gprs.downlink.cs2", "CS2 " }, |
| 77 | { "gprs.downlink.cs3", "CS3 " }, |
| 78 | { "gprs.downlink.cs4", "CS4 " }, |
| 79 | }; |
| 80 | |
| 81 | static const struct rate_ctr_desc tbf_dl_egprs_ctr_description[] = { |
| 82 | { "egprs.downlink.mcs1", "MCS1 " }, |
| 83 | { "egprs.downlink.mcs2", "MCS2 " }, |
| 84 | { "egprs.downlink.mcs3", "MCS3 " }, |
| 85 | { "egprs.downlink.mcs4", "MCS4 " }, |
| 86 | { "egprs.downlink.mcs5", "MCS5 " }, |
| 87 | { "egprs.downlink.mcs6", "MCS6 " }, |
| 88 | { "egprs.downlink.mcs7", "MCS7 " }, |
| 89 | { "egprs.downlink.mcs8", "MCS8 " }, |
| 90 | { "egprs.downlink.mcs9", "MCS9 " }, |
| 91 | }; |
| 92 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 93 | static const struct rate_ctr_desc tbf_ul_gprs_ctr_description[] = { |
| 94 | { "gprs.uplink.cs1", "CS1 " }, |
| 95 | { "gprs.uplink.cs2", "CS2 " }, |
| 96 | { "gprs.uplink.cs3", "CS3 " }, |
| 97 | { "gprs.uplink.cs4", "CS4 " }, |
| 98 | }; |
| 99 | |
| 100 | static const struct rate_ctr_desc tbf_ul_egprs_ctr_description[] = { |
| 101 | { "egprs.uplink.mcs1", "MCS1 " }, |
| 102 | { "egprs.uplink.mcs2", "MCS2 " }, |
| 103 | { "egprs.uplink.mcs3", "MCS3 " }, |
| 104 | { "egprs.uplink.mcs4", "MCS4 " }, |
| 105 | { "egprs.uplink.mcs5", "MCS5 " }, |
| 106 | { "egprs.uplink.mcs6", "MCS6 " }, |
| 107 | { "egprs.uplink.mcs7", "MCS7 " }, |
| 108 | { "egprs.uplink.mcs8", "MCS8 " }, |
| 109 | { "egprs.uplink.mcs9", "MCS9 " }, |
| 110 | }; |
| 111 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 112 | static const struct rate_ctr_group_desc tbf_ctrg_desc = { |
| 113 | "pcu.tbf", |
| 114 | "TBF Statistics", |
| 115 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 116 | ARRAY_SIZE(tbf_ctr_description), |
| 117 | tbf_ctr_description, |
| 118 | }; |
| 119 | |
| 120 | static const struct rate_ctr_group_desc tbf_dl_gprs_ctrg_desc = { |
| 121 | "tbf.gprs", |
| 122 | "Data Blocks", |
| 123 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 124 | ARRAY_SIZE(tbf_dl_gprs_ctr_description), |
| 125 | tbf_dl_gprs_ctr_description, |
| 126 | }; |
| 127 | |
| 128 | static const struct rate_ctr_group_desc tbf_dl_egprs_ctrg_desc = { |
| 129 | "tbf.egprs", |
| 130 | "Data Blocks", |
| 131 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 132 | ARRAY_SIZE(tbf_dl_egprs_ctr_description), |
| 133 | tbf_dl_egprs_ctr_description, |
| 134 | }; |
| 135 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 136 | static const struct rate_ctr_group_desc tbf_ul_gprs_ctrg_desc = { |
| 137 | "tbf.gprs", |
| 138 | "Data Blocks", |
| 139 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 140 | ARRAY_SIZE(tbf_ul_gprs_ctr_description), |
| 141 | tbf_ul_gprs_ctr_description, |
| 142 | }; |
| 143 | |
| 144 | static const struct rate_ctr_group_desc tbf_ul_egprs_ctrg_desc = { |
| 145 | "tbf.egprs", |
| 146 | "Data Blocks", |
| 147 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 148 | ARRAY_SIZE(tbf_ul_egprs_ctr_description), |
| 149 | tbf_ul_egprs_ctr_description, |
| 150 | }; |
| 151 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 152 | gprs_rlcmac_tbf::Meas::Meas() : |
| 153 | rssi_sum(0), |
| 154 | rssi_num(0) |
| 155 | { |
| 156 | timerclear(&rssi_tv); |
| 157 | } |
| 158 | |
| 159 | gprs_rlcmac_tbf::gprs_rlcmac_tbf(BTS *bts_, gprs_rlcmac_tbf_direction dir) : |
| 160 | state_flags(0), |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 161 | direction(dir), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 162 | trx(NULL), |
| 163 | first_ts(0), |
| 164 | first_common_ts(0), |
| 165 | control_ts(0xff), |
| 166 | dl_ass_state(GPRS_RLCMAC_DL_ASS_NONE), |
| 167 | ul_ass_state(GPRS_RLCMAC_UL_ASS_NONE), |
| 168 | ul_ack_state(GPRS_RLCMAC_UL_ACK_NONE), |
| 169 | poll_state(GPRS_RLCMAC_POLL_NONE), |
| 170 | poll_fn(0), |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 171 | poll_ts(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 172 | n3105(0), |
| 173 | T(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 174 | fT(0), |
| 175 | num_fT_exp(0), |
| 176 | state(GPRS_RLCMAC_NULL), |
| 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), |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 187 | m_list(this), |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 188 | m_ms_list(this), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 189 | m_egprs_enabled(false) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 190 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 191 | /* The classes of these members do not have proper constructors yet. |
| 192 | * Just set them to 0 like talloc_zero did */ |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 193 | memset(&pdch, 0, sizeof(pdch)); |
| 194 | memset(&timer, 0, sizeof(timer)); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 195 | memset(&T31, 0, sizeof(T31)); |
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 | |
Alexander Couzens | d38b92e | 2016-08-21 19:38:30 +0200 | [diff] [blame] | 301 | int gprs_rlcmac_tbf::llc_queue_size() const |
| 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; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 405 | tbf->set_state(GPRS_RLCMAC_ASSIGN); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 406 | tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 407 | tbf->t_start(T3169, bts->t3169, 0, "allocation (UL-TBF)", true); |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 408 | tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 409 | OSMO_ASSERT(tbf->ms()); |
| 410 | |
| 411 | tbf->ms()->set_ta(ta); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 412 | |
| 413 | return tbf; |
| 414 | } |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 415 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 416 | static void tbf_unlink_pdch(struct gprs_rlcmac_tbf *tbf) |
| 417 | { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 418 | int ts; |
| 419 | |
Jacob Erlbeck | ccc34e4 | 2015-06-29 13:45:05 +0200 | [diff] [blame] | 420 | for (ts = 0; ts < 8; ts++) { |
| 421 | if (!tbf->pdch[ts]) |
| 422 | continue; |
| 423 | |
| 424 | tbf->pdch[ts]->detach_tbf(tbf); |
| 425 | tbf->pdch[ts] = NULL; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 426 | } |
| 427 | } |
| 428 | |
| 429 | void tbf_free(struct gprs_rlcmac_tbf *tbf) |
| 430 | { |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 431 | /* update counters */ |
| 432 | if (tbf->direction == GPRS_RLCMAC_UL_TBF) { |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 433 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(tbf); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 434 | tbf->bts->tbf_ul_freed(); |
| 435 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 436 | tbf->bts->tbf_ul_aborted(); |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 437 | rate_ctr_group_free(ul_tbf->m_ul_egprs_ctrs); |
| 438 | rate_ctr_group_free(ul_tbf->m_ul_gprs_ctrs); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 439 | } else { |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 440 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
| 441 | if (tbf->is_egprs_enabled()) { |
| 442 | rate_ctr_group_free(dl_tbf->m_dl_egprs_ctrs); |
| 443 | } else { |
| 444 | rate_ctr_group_free(dl_tbf->m_dl_gprs_ctrs); |
| 445 | } |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 446 | tbf->bts->tbf_dl_freed(); |
| 447 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 448 | tbf->bts->tbf_dl_aborted(); |
| 449 | } |
| 450 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 451 | /* Give final measurement report */ |
| 452 | gprs_rlcmac_rssi_rep(tbf); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 453 | if (tbf->direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 454 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
Jacob Erlbeck | f04a5b3 | 2016-01-21 20:42:40 +0100 | [diff] [blame] | 455 | |
| 456 | dl_tbf->abort(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 457 | dl_tbf->cleanup(); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 458 | } |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 459 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 460 | LOGPTBF(tbf, LOGL_INFO, "free\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 461 | if (tbf->ul_ass_state != GPRS_RLCMAC_UL_ASS_NONE) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 462 | LOGPTBF(tbf, LOGL_ERROR, "Software error: Pending uplink " |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 463 | "assignment in state %s. This may not happen, because the " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 464 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 465 | "be sure not to free in this state. PLEASE FIX!\n", |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 466 | get_value_string(gprs_rlcmac_tbf_ul_ass_state_names, |
| 467 | tbf->ul_ass_state)); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 468 | if (tbf->dl_ass_state != GPRS_RLCMAC_DL_ASS_NONE) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 469 | LOGPTBF(tbf, LOGL_ERROR, "Software error: Pending downlink " |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 470 | "assignment in state %s. This may not happen, because the " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 471 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 472 | "be sure not to free in this state. PLEASE FIX!\n", |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 473 | get_value_string(gprs_rlcmac_tbf_dl_ass_state_names, |
| 474 | tbf->dl_ass_state)); |
Max | cea806e | 2017-12-01 17:40:20 +0100 | [diff] [blame] | 475 | tbf->stop_timer("freeing TBF"); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 476 | tbf->stop_timers("freeing TBF"); |
Max | 5a6bcfb | 2017-09-01 14:36:44 +0200 | [diff] [blame] | 477 | /* TODO: Could/Should generate bssgp_tx_llc_discarded */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 478 | tbf_unlink_pdch(tbf); |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 479 | llist_del(&tbf->list()); |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 480 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 481 | if (tbf->ms()) |
| 482 | tbf->set_ms(NULL); |
| 483 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 484 | rate_ctr_group_free(tbf->m_ctrs); |
| 485 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 486 | LOGP(DRLCMAC, LOGL_DEBUG, "********** %s-TBF ends here **********\n", |
| 487 | (tbf->direction != GPRS_RLCMAC_UL_TBF) ? "DL" : "UL"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 488 | talloc_free(tbf); |
| 489 | } |
| 490 | |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 491 | int gprs_rlcmac_tbf::update() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 492 | { |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 493 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 494 | int rc; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 495 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 496 | if (direction != GPRS_RLCMAC_DL_TBF) |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 497 | return -EINVAL; |
| 498 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 499 | LOGP(DRLCMAC, LOGL_DEBUG, "********** DL-TBF update **********\n"); |
| 500 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 501 | tbf_unlink_pdch(this); |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 502 | rc = bts_data->alloc_algorithm(bts_data, ms(), this, |
| 503 | bts_data->alloc_algorithm_curst, 0, -1); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 504 | /* if no resource */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 505 | if (rc < 0) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 506 | LOGP(DRLCMAC, LOGL_ERROR, "No resource after update???\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 507 | return -rc; |
| 508 | } |
| 509 | |
Aravind Sirsikar | 0ee31cf | 2016-09-15 17:54:46 +0530 | [diff] [blame] | 510 | if (is_egprs_enabled()) { |
| 511 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
| 512 | if (dl_tbf) |
| 513 | dl_tbf->egprs_calc_window_size(); |
| 514 | } |
| 515 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 516 | return 0; |
| 517 | } |
| 518 | |
| 519 | int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf) |
| 520 | { |
| 521 | if (tbf->control_ts == 0xff) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 522 | LOGPTBF(tbf, LOGL_INFO, "Setting Control TS %d\n", |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 523 | tbf->first_common_ts); |
| 524 | else if (tbf->control_ts != tbf->first_common_ts) |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 525 | LOGPTBF(tbf, LOGL_INFO, "Changing Control TS %d\n", |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 526 | tbf->first_common_ts); |
| 527 | tbf->control_ts = tbf->first_common_ts; |
| 528 | |
| 529 | return 0; |
| 530 | } |
| 531 | |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 532 | const char *gprs_rlcmac_tbf::tbf_state_name[] = { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 533 | "NULL", |
| 534 | "ASSIGN", |
| 535 | "FLOW", |
| 536 | "FINISHED", |
| 537 | "WAIT RELEASE", |
| 538 | "RELEASING", |
| 539 | }; |
| 540 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 541 | void tbf_timer_start(struct gprs_rlcmac_tbf *tbf, unsigned int T, |
Max | cea806e | 2017-12-01 17:40:20 +0100 | [diff] [blame] | 542 | unsigned int seconds, unsigned int microseconds, const char *reason) |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 543 | { |
Max | cea806e | 2017-12-01 17:40:20 +0100 | [diff] [blame] | 544 | LOGPC(DRLCMAC, (T != tbf->T) ? LOGL_ERROR : LOGL_DEBUG, |
| 545 | "%s %sstarting timer T%u [%s] with %u sec. %u microsec.", |
| 546 | tbf_name(tbf), osmo_timer_pending(&tbf->timer) ? "re" : "", T, reason, seconds, microseconds); |
Max | 59f50c2 | 2017-11-30 12:36:11 +0100 | [diff] [blame] | 547 | |
| 548 | if (T != tbf->T && osmo_timer_pending(&tbf->timer)) |
Max | cea806e | 2017-12-01 17:40:20 +0100 | [diff] [blame] | 549 | LOGPC(DRLCMAC, LOGL_ERROR, " while old timer T%u pending", tbf->T); |
Max | 59f50c2 | 2017-11-30 12:36:11 +0100 | [diff] [blame] | 550 | |
| 551 | LOGPC(DRLCMAC, (T != tbf->T) ? LOGL_ERROR : LOGL_DEBUG, "\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 552 | |
| 553 | tbf->T = T; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 554 | |
| 555 | /* Tunning timers can be safely re-scheduled. */ |
| 556 | tbf->timer.data = tbf; |
| 557 | tbf->timer.cb = &tbf_timer_cb; |
| 558 | |
| 559 | osmo_timer_schedule(&tbf->timer, seconds, microseconds); |
| 560 | } |
| 561 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 562 | 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] | 563 | { |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 564 | if (t >= T_MAX) { |
| 565 | LOGPTBF(this, LOGL_ERROR, "attempting to stop unknown timer %s [%s]\n", |
| 566 | get_value_string(tbf_timers_names, t), reason); |
| 567 | } |
| 568 | |
| 569 | if (osmo_timer_pending(&T31[t])) { |
| 570 | LOGPTBF(this, LOGL_DEBUG, "stopping timer %s [%s]\n", |
| 571 | get_value_string(tbf_timers_names, t), reason); |
| 572 | osmo_timer_del(&T31[t]); |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | /* check if any of T31xx timer(s) are pending */ |
| 577 | bool gprs_rlcmac_tbf::timers_pending(enum tbf_timers t) |
| 578 | { |
| 579 | uint8_t i; |
| 580 | |
| 581 | if (t != T_MAX) |
| 582 | return osmo_timer_pending(&T31[t]); |
| 583 | |
| 584 | for (i = T3169; i < T_MAX; i++) |
| 585 | if (osmo_timer_pending(&T31[i])) |
| 586 | return true; |
| 587 | |
| 588 | return false; |
| 589 | } |
| 590 | |
| 591 | void gprs_rlcmac_tbf::stop_timers(const char *reason) |
| 592 | { |
| 593 | uint8_t i; |
| 594 | for (i = 0; i < T_MAX; i++) |
| 595 | t_stop((enum tbf_timers)i, reason); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 596 | } |
| 597 | |
Max | cea806e | 2017-12-01 17:40:20 +0100 | [diff] [blame] | 598 | void gprs_rlcmac_tbf::stop_timer(const char *reason) |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 599 | { |
| 600 | if (osmo_timer_pending(&timer)) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 601 | LOGPTBF(this, LOGL_DEBUG, "stopping timer T%u [%s]\n", |
| 602 | T, reason); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 603 | osmo_timer_del(&timer); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 604 | } |
| 605 | } |
| 606 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 607 | static inline void tbf_timeout_free(struct gprs_rlcmac_tbf *tbf, enum tbf_timers t, bool run_diag) |
| 608 | { |
| 609 | LOGPTBF(tbf, LOGL_NOTICE, "%s timeout expired, freeing TBF\n", |
| 610 | get_value_string(tbf_timers_names, t)); |
| 611 | |
| 612 | if (run_diag) |
| 613 | tbf->rlcmac_diag(); |
| 614 | |
| 615 | tbf_free(tbf); |
| 616 | } |
| 617 | |
| 618 | #define T_CBACK(t, diag) static void cb_##t(void *_tbf) { tbf_timeout_free((struct gprs_rlcmac_tbf *)_tbf, t, diag); } |
| 619 | |
| 620 | T_CBACK(T3169, true) |
| 621 | T_CBACK(T3191, true) |
| 622 | T_CBACK(T3193, false) |
| 623 | T_CBACK(T3195, true) |
| 624 | |
| 625 | void gprs_rlcmac_tbf::t_start(enum tbf_timers t, uint32_t sec, uint32_t microsec, const char *reason, bool force) |
| 626 | { |
| 627 | if (t >= T_MAX) { |
| 628 | LOGPTBF(this, LOGL_ERROR, "attempting to start unknown timer %s [%s]\n", |
| 629 | get_value_string(tbf_timers_names, t), reason); |
| 630 | } |
| 631 | |
| 632 | if (!force && osmo_timer_pending(&T31[t])) |
| 633 | return; |
| 634 | |
| 635 | LOGPTBF(this, LOGL_DEBUG, "%sstarting timer %s [%s] with %u sec. %u microsec.\n", |
| 636 | osmo_timer_pending(&T31[t]) ? "re" : "", get_value_string(tbf_timers_names, t), reason, sec, microsec); |
| 637 | |
| 638 | T31[t].data = this; |
| 639 | |
| 640 | switch(t) { |
| 641 | case T3169: |
| 642 | T31[t].cb = cb_T3169; |
| 643 | break; |
| 644 | case T3191: |
| 645 | T31[t].cb = cb_T3191; |
| 646 | break; |
| 647 | case T3193: |
| 648 | T31[t].cb = cb_T3193; |
| 649 | break; |
| 650 | case T3195: |
| 651 | T31[t].cb = cb_T3195; |
| 652 | break; |
| 653 | default: |
| 654 | LOGPTBF(this, LOGL_ERROR, "attempting to set callback for unknown timer %s [%s]\n", |
| 655 | get_value_string(tbf_timers_names, t), reason); |
| 656 | } |
| 657 | |
| 658 | osmo_timer_schedule(&T31[t], sec, microsec); |
| 659 | } |
| 660 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 661 | int gprs_rlcmac_tbf::check_polling(uint32_t fn, uint8_t ts, |
| 662 | uint32_t *poll_fn_, unsigned int *rrbp_) |
| 663 | { |
Max | 9dabfa2 | 2017-05-16 16:10:45 +0200 | [diff] [blame] | 664 | uint32_t new_poll_fn = next_fn(fn, 13); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 665 | |
| 666 | if (!is_control_ts(ts)) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 667 | LOGPTBF(this, LOGL_DEBUG, "Polling cannot be " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 668 | "scheduled in this TS %d (first control TS %d)\n", |
| 669 | ts, control_ts); |
| 670 | return -EINVAL; |
| 671 | } |
| 672 | if (poll_state != GPRS_RLCMAC_POLL_NONE) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 673 | LOGPTBF(this, LOGL_DEBUG, "Polling is already scheduled\n"); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 674 | return -EBUSY; |
| 675 | } |
Max | 9dabfa2 | 2017-05-16 16:10:45 +0200 | [diff] [blame] | 676 | if (bts->sba()->find(trx->trx_no, ts, next_fn(fn, 13))) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 677 | LOGPTBF(this, LOGL_DEBUG, "Polling is already scheduled " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 678 | "for single block allocation at FN %d TS %d ...\n", |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 679 | new_poll_fn, ts); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 680 | return -EBUSY; |
| 681 | } |
| 682 | |
| 683 | *poll_fn_ = new_poll_fn; |
| 684 | *rrbp_ = 0; |
| 685 | |
| 686 | return 0; |
| 687 | } |
| 688 | |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 689 | 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] | 690 | { |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 691 | const char *chan = "UNKNOWN"; |
| 692 | |
| 693 | if (state_flags & (1 << (GPRS_RLCMAC_FLAG_CCCH))) |
| 694 | chan = "CCCH"; |
| 695 | |
| 696 | if (state_flags & (1 << (GPRS_RLCMAC_FLAG_PACCH))) |
| 697 | chan = "PACCH"; |
| 698 | |
| 699 | if ((state_flags & (1 << (GPRS_RLCMAC_FLAG_PACCH))) && (state_flags & (1 << (GPRS_RLCMAC_FLAG_CCCH)))) |
| 700 | LOGP(DRLCMACDL, LOGL_ERROR, |
| 701 | "%s Attempt to schedule polling on %s (FN=%d, TS=%d) with both CCCH and PACCH flags set - FIXME!\n", |
| 702 | name(), chan, poll_fn, poll_ts); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 703 | |
| 704 | /* schedule polling */ |
| 705 | poll_state = GPRS_RLCMAC_POLL_SCHED; |
| 706 | poll_fn = new_poll_fn; |
| 707 | poll_ts = ts; |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 708 | |
| 709 | switch (t) { |
| 710 | case GPRS_RLCMAC_POLL_UL_ASS: |
| 711 | ul_ass_state = GPRS_RLCMAC_UL_ASS_WAIT_ACK; |
| 712 | |
| 713 | LOGP(DRLCMACDL, LOGL_INFO, "%s Scheduled UL Assignment polling on %s (FN=%d, TS=%d)\n", |
| 714 | name(), chan, poll_fn, poll_ts); |
| 715 | break; |
| 716 | case GPRS_RLCMAC_POLL_DL_ASS: |
| 717 | dl_ass_state = GPRS_RLCMAC_DL_ASS_WAIT_ACK; |
| 718 | |
| 719 | LOGP(DRLCMACDL, LOGL_INFO, "%s Scheduled DL Assignment polling on %s (FN=%d, TS=%d)\n", |
| 720 | name(), chan, poll_fn, poll_ts); |
| 721 | break; |
| 722 | case GPRS_RLCMAC_POLL_UL_ACK: |
| 723 | ul_ack_state = GPRS_RLCMAC_UL_ACK_WAIT_ACK; |
| 724 | |
| 725 | LOGP(DRLCMACUL, LOGL_DEBUG, "%s Scheduled UL Acknowledgement polling on %s (FN=%d, TS=%d)\n", |
| 726 | name(), chan, poll_fn, poll_ts); |
| 727 | break; |
| 728 | case GPRS_RLCMAC_POLL_DL_ACK: |
| 729 | LOGP(DRLCMACDL, LOGL_DEBUG, "%s Scheduled DL Acknowledgement polling on %s (FN=%d, TS=%d)\n", |
| 730 | name(), chan, poll_fn, poll_ts); |
| 731 | break; |
| 732 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 733 | } |
| 734 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 735 | void gprs_rlcmac_tbf::poll_timeout() |
| 736 | { |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 737 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
| 738 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 739 | LOGPTBF(this, LOGL_NOTICE, "poll timeout for FN=%d, TS=%d (curr FN %d)\n", |
| 740 | poll_fn, poll_ts, bts->current_frame_number()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 741 | |
| 742 | poll_state = GPRS_RLCMAC_POLL_NONE; |
| 743 | |
Max | 59e4a4f | 2017-12-20 18:01:55 +0100 | [diff] [blame] | 744 | m_n3101++; |
| 745 | if (m_n3101 == bts->bts_data()->n3101) { |
| 746 | LOGP(DRLCMAC, LOGL_NOTICE, " N3101 exceeded MAX (%u)\n", bts->bts_data()->n3101); |
| 747 | set_state(GPRS_RLCMAC_RELEASING); |
| 748 | t_start(T3169, bts->bts_data()->t3169, 0, "MAX N3101 reached", false); |
| 749 | return; |
| 750 | } |
| 751 | |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 752 | if (ul_tbf && ul_tbf->handle_ctrl_ack()) { |
| 753 | if (!ul_tbf->ctrl_ack_to_toggle()) { |
| 754 | 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] | 755 | rlcmac_diag(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 756 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 757 | bts->rlc_ack_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 758 | bts->pkt_ul_ack_nack_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 759 | if (state_is(GPRS_RLCMAC_FINISHED)) { |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 760 | ul_tbf->m_n3103++; |
| 761 | 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] | 762 | LOGP(DRLCMAC, LOGL_NOTICE, |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 763 | "- N3103 exceeded\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 764 | bts->pkt_ul_ack_nack_poll_failed(); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 765 | ul_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 766 | ul_tbf->t_start(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] | 767 | return; |
| 768 | } |
| 769 | /* reschedule UL ack */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 770 | 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] | 771 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 772 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 773 | } else if (ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
| 774 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS))) { |
| 775 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame] | 776 | "PACKET CONTROL ACK for PACKET UPLINK " |
| 777 | "ASSIGNMENT.\n"); |
| 778 | rlcmac_diag(); |
| 779 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 780 | } |
| 781 | ul_ass_state = GPRS_RLCMAC_UL_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->pua_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 785 | if (n3105 == 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 | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 788 | t_start(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->pua_poll_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 791 | return; |
| 792 | } |
| 793 | /* reschedule UL assignment */ |
| 794 | ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS; |
| 795 | } else if (dl_ass_state == GPRS_RLCMAC_DL_ASS_WAIT_ACK) { |
| 796 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS))) { |
| 797 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 798 | "PACKET CONTROL ACK for PACKET DOWNLINK " |
| 799 | "ASSIGNMENT.\n"); |
| 800 | rlcmac_diag(); |
| 801 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS); |
| 802 | } |
| 803 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 804 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 805 | bts->rlc_ass_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 806 | bts->pda_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 807 | if (n3105 == bts->bts_data()->n3105) { |
| 808 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 809 | set_state(GPRS_RLCMAC_RELEASING); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 810 | t_start(T3195, bts_data()->t3195, 0, "MAX N3105 reached", true); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 811 | bts->rlc_ass_failed(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 812 | bts->pda_poll_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 813 | return; |
| 814 | } |
| 815 | /* reschedule DL assignment */ |
| 816 | dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS; |
| 817 | } else if (direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 818 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 819 | |
| 820 | 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] | 821 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 822 | "PACKET DOWNLINK ACK.\n"); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 823 | dl_tbf->rlcmac_diag(); |
| 824 | 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] | 825 | } |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 826 | dl_tbf->n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 827 | if (dl_tbf->state_is(GPRS_RLCMAC_RELEASING)) |
| 828 | bts->rlc_rel_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 829 | else { |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 830 | bts->rlc_ack_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 831 | bts->pkt_dl_ack_nack_poll_timedout(); |
| 832 | } |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 833 | if (dl_tbf->n3105 == dl_tbf->bts->bts_data()->n3105) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 834 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 835 | dl_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 836 | dl_tbf->t_start(T3195, dl_tbf->bts_data()->t3195, 0, "MAX N3105 reached", true); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 837 | bts->pkt_dl_ack_nack_poll_failed(); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 838 | bts->rlc_ack_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 839 | return; |
| 840 | } |
| 841 | /* resend IMM.ASS on CCCH on timeout */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 842 | if ((dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)) |
| 843 | && !(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 844 | 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] | 845 | imsi()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 846 | /* send immediate assignment */ |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 847 | dl_tbf->bts->snd_dl_ass(dl_tbf, 0, imsi()); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 848 | dl_tbf->m_wait_confirm = 1; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 849 | } |
| 850 | } else |
| 851 | LOGP(DRLCMAC, LOGL_ERROR, "- Poll Timeout, but no event!\n"); |
| 852 | } |
| 853 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 854 | static int setup_tbf(struct gprs_rlcmac_tbf *tbf, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 855 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 856 | 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] | 857 | { |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 858 | int rc; |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 859 | struct gprs_rlcmac_bts *bts; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 860 | if (!tbf) |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 861 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 862 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 863 | bts = tbf->bts->bts_data(); |
Daniel Willmann | 1b3864f | 2014-07-30 13:25:19 +0200 | [diff] [blame] | 864 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 865 | if (ms->mode() == GprsCodingScheme::EGPRS) |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 866 | ms_class = egprs_ms_class; |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 867 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 868 | tbf->m_created_ts = time(NULL); |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 869 | tbf->set_ms_class(ms_class); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 870 | /* select algorithm */ |
Jacob Erlbeck | e2e004e | 2015-06-18 17:16:26 +0200 | [diff] [blame] | 871 | rc = bts->alloc_algorithm(bts, ms, tbf, bts->alloc_algorithm_curst, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 872 | single_slot, use_trx); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 873 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 874 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 875 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 876 | } |
| 877 | /* assign control ts */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 878 | rc = tbf_assign_control_ts(tbf); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 879 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 880 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 881 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 882 | } |
| 883 | |
| 884 | /* set timestamp */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 885 | gettimeofday(&tbf->meas.rssi_tv, NULL); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 886 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 887 | tbf->set_ms(ms); |
| 888 | |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 889 | LOGP(DRLCMAC, LOGL_INFO, |
| 890 | "Allocated %s: trx = %d, ul_slots = %02x, dl_slots = %02x\n", |
| 891 | tbf->name(), tbf->trx->trx_no, tbf->ul_slots(), tbf->dl_slots()); |
| 892 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 893 | tbf->m_ctrs = rate_ctr_group_alloc(tbf, &tbf_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 894 | if (!tbf->m_ctrs) { |
| 895 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate TBF counters\n"); |
| 896 | return -1; |
| 897 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 898 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 899 | return 0; |
| 900 | } |
| 901 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 902 | gprs_rlcmac_ul_tbf::gprs_rlcmac_ul_tbf(BTS *bts_) : |
| 903 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_UL_TBF), |
| 904 | m_rx_counter(0), |
| 905 | m_n3103(0), |
| 906 | m_contention_resolution_done(0), |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 907 | m_final_ack_sent(0), |
| 908 | m_ul_gprs_ctrs(NULL), |
| 909 | m_ul_egprs_ctrs(NULL) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 910 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 911 | memset(&m_usf, 0, sizeof(m_usf)); |
| 912 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 913 | |
| 914 | static int ul_tbf_dtor(struct gprs_rlcmac_ul_tbf *tbf) |
| 915 | { |
| 916 | tbf->~gprs_rlcmac_ul_tbf(); |
| 917 | return 0; |
| 918 | } |
| 919 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 920 | static void setup_egprs_mode(gprs_rlcmac_bts *bts, GprsMs *ms) |
| 921 | { |
| 922 | if (GprsCodingScheme::getEgprsByNum(bts->max_mcs_ul).isEgprsGmsk() && |
| 923 | GprsCodingScheme::getEgprsByNum(bts->max_mcs_dl).isEgprsGmsk() && |
| 924 | ms->mode() != GprsCodingScheme::EGPRS) |
| 925 | { |
| 926 | ms->set_mode(GprsCodingScheme::EGPRS_GMSK); |
| 927 | } else { |
| 928 | ms->set_mode(GprsCodingScheme::EGPRS); |
| 929 | } |
| 930 | } |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 931 | |
| 932 | 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] | 933 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 934 | 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] | 935 | { |
| 936 | struct gprs_rlcmac_ul_tbf *tbf; |
| 937 | int rc; |
| 938 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 939 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
| 940 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 941 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 942 | bts->bts->tbf_failed_egprs_only(); |
| 943 | return NULL; |
| 944 | } |
| 945 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 946 | LOGP(DRLCMAC, LOGL_DEBUG, "********** UL-TBF starts here **********\n"); |
| 947 | LOGP(DRLCMAC, LOGL_INFO, "Allocating UL TBF: MS_CLASS=%d/%d\n", |
| 948 | ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 949 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 950 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 951 | |
| 952 | if (!tbf) |
| 953 | return NULL; |
| 954 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 955 | talloc_set_destructor(tbf, ul_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 956 | new (tbf) gprs_rlcmac_ul_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 957 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 958 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 959 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 960 | |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 961 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 962 | tbf->enable_egprs(); |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 963 | setup_egprs_mode(bts, ms); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 964 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 965 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 966 | } |
| 967 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 968 | 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] | 969 | |
| 970 | if (tbf->is_egprs_enabled()) |
| 971 | tbf->egprs_calc_ulwindow_size(); |
| 972 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 973 | /* if no resource */ |
| 974 | if (rc < 0) { |
| 975 | talloc_free(tbf); |
| 976 | return NULL; |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 977 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 978 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 979 | tbf->m_ul_egprs_ctrs = rate_ctr_group_alloc(tbf, &tbf_ul_egprs_ctrg_desc, 0); |
| 980 | 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] | 981 | if (!tbf->m_ul_egprs_ctrs || !tbf->m_ul_gprs_ctrs) { |
| 982 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate TBF UL counters\n"); |
| 983 | talloc_free(tbf); |
| 984 | return NULL; |
| 985 | } |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 986 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 987 | llist_add(&tbf->list(), &bts->bts->ul_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 988 | tbf->bts->tbf_ul_created(); |
| 989 | |
| 990 | return tbf; |
| 991 | } |
| 992 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 993 | gprs_rlcmac_dl_tbf::BandWidth::BandWidth() : |
| 994 | dl_bw_octets(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 995 | dl_throughput(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 996 | dl_loss_lost(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 997 | dl_loss_received(0) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 998 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 999 | timerclear(&dl_bw_tv); |
| 1000 | timerclear(&dl_loss_tv); |
| 1001 | } |
| 1002 | |
| 1003 | gprs_rlcmac_dl_tbf::gprs_rlcmac_dl_tbf(BTS *bts_) : |
| 1004 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_DL_TBF), |
| 1005 | m_tx_counter(0), |
| 1006 | m_wait_confirm(0), |
| 1007 | m_dl_ack_requested(false), |
| 1008 | m_last_dl_poll_fn(0), |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1009 | m_last_dl_drained_fn(0), |
| 1010 | m_dl_gprs_ctrs(NULL), |
| 1011 | m_dl_egprs_ctrs(NULL) |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 1012 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 1013 | memset(&m_llc_timer, 0, sizeof(m_llc_timer)); |
| 1014 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 1015 | |
| 1016 | static int dl_tbf_dtor(struct gprs_rlcmac_dl_tbf *tbf) |
| 1017 | { |
| 1018 | tbf->~gprs_rlcmac_dl_tbf(); |
| 1019 | return 0; |
| 1020 | } |
| 1021 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1022 | 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] | 1023 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1024 | 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] | 1025 | { |
| 1026 | struct gprs_rlcmac_dl_tbf *tbf; |
| 1027 | int rc; |
| 1028 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 1029 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 3b1c553 | 2016-01-20 12:30:46 +0100 | [diff] [blame] | 1030 | if (ms_class > 0) { |
| 1031 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 1032 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 1033 | bts->bts->tbf_failed_egprs_only(); |
| 1034 | return NULL; |
| 1035 | } |
| 1036 | egprs_ms_class = 1; |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 1037 | } |
| 1038 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1039 | LOGP(DRLCMAC, LOGL_DEBUG, "********** DL-TBF starts here **********\n"); |
| 1040 | LOGP(DRLCMAC, LOGL_INFO, "Allocating DL TBF: MS_CLASS=%d/%d\n", |
| 1041 | ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1042 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 1043 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_dl_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1044 | |
| 1045 | if (!tbf) |
| 1046 | return NULL; |
| 1047 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 1048 | talloc_set_destructor(tbf, dl_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 1049 | new (tbf) gprs_rlcmac_dl_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1050 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 1051 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1052 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1053 | |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 1054 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
| 1055 | tbf->enable_egprs(); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 1056 | setup_egprs_mode(bts, ms); |
| 1057 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 1058 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
| 1059 | } |
| 1060 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1061 | rc = setup_tbf(tbf, ms, use_trx, ms_class, 0, single_slot); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1062 | /* if no resource */ |
| 1063 | if (rc < 0) { |
| 1064 | talloc_free(tbf); |
| 1065 | return NULL; |
| 1066 | } |
| 1067 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1068 | if (tbf->is_egprs_enabled()) { |
Aravind Sirsikar | 8e70bb5 | 2016-09-15 17:51:16 +0530 | [diff] [blame] | 1069 | tbf->egprs_calc_window_size(); |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1070 | 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] | 1071 | if (!tbf->m_dl_egprs_ctrs) { |
| 1072 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate EGPRS DL counters\n"); |
| 1073 | talloc_free(tbf); |
| 1074 | return NULL; |
| 1075 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1076 | } else { |
| 1077 | 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] | 1078 | if (!tbf->m_dl_gprs_ctrs) { |
| 1079 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate GPRS DL counters\n"); |
| 1080 | talloc_free(tbf); |
| 1081 | return NULL; |
| 1082 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 1083 | } |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 1084 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1085 | llist_add(&tbf->list(), &bts->bts->dl_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 1086 | tbf->bts->tbf_dl_created(); |
| 1087 | |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 1088 | tbf->m_last_dl_poll_fn = -1; |
Jacob Erlbeck | 3bed5d1 | 2015-03-19 11:22:38 +0100 | [diff] [blame] | 1089 | tbf->m_last_dl_drained_fn = -1; |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 1090 | |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 1091 | gettimeofday(&tbf->m_bw.dl_bw_tv, NULL); |
| 1092 | gettimeofday(&tbf->m_bw.dl_loss_tv, NULL); |
| 1093 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1094 | return tbf; |
| 1095 | } |
| 1096 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 1097 | static void tbf_timer_cb(void *_tbf) |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1098 | { |
| 1099 | struct gprs_rlcmac_tbf *tbf = (struct gprs_rlcmac_tbf *)_tbf; |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 1100 | tbf->handle_timeout(); |
| 1101 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1102 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 1103 | void gprs_rlcmac_tbf::handle_timeout() |
| 1104 | { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1105 | LOGPTBF(this, LOGL_DEBUG, "timer %u expired.\n", T); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1106 | |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 1107 | if (T) { |
| 1108 | LOGPTBF(this, LOGL_ERROR, "%s timer expired in unknown mode: %u\n", T); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1109 | return; |
Max | ee5be3a | 2017-12-20 17:31:13 +0100 | [diff] [blame] | 1110 | } |
| 1111 | |
| 1112 | /* assignment */ |
| 1113 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) { |
| 1114 | if (state_is(GPRS_RLCMAC_ASSIGN)) { |
| 1115 | LOGPTBF(this, LOGL_NOTICE, "releasing due to PACCH assignment timeout.\n"); |
| 1116 | tbf_free(this); |
| 1117 | return; |
| 1118 | } else |
| 1119 | LOGPTBF(this, LOGL_ERROR, "Error: TBF is not in assign state\n"); |
| 1120 | } |
| 1121 | |
| 1122 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) { |
| 1123 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
| 1124 | dl_tbf->m_wait_confirm = 0; |
| 1125 | if (dl_tbf->state_is(GPRS_RLCMAC_ASSIGN)) { |
| 1126 | tbf_assign_control_ts(dl_tbf); |
| 1127 | |
| 1128 | if (!dl_tbf->upgrade_to_multislot) { |
| 1129 | /* change state to FLOW, so scheduler |
| 1130 | * will start transmission */ |
| 1131 | dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
| 1132 | return; |
| 1133 | } |
| 1134 | |
| 1135 | /* This tbf can be upgraded to use multiple DL |
| 1136 | * timeslots and now that there is already one |
| 1137 | * slot assigned send another DL assignment via |
| 1138 | * PDCH. */ |
| 1139 | |
| 1140 | /* keep to flags */ |
| 1141 | dl_tbf->state_flags &= GPRS_RLCMAC_FLAG_TO_MASK; |
| 1142 | |
| 1143 | dl_tbf->update(); |
| 1144 | |
| 1145 | dl_tbf->trigger_ass(dl_tbf); |
| 1146 | } else |
| 1147 | 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] | 1148 | } |
| 1149 | } |
| 1150 | |
| 1151 | int gprs_rlcmac_tbf::rlcmac_diag() |
| 1152 | { |
| 1153 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) |
| 1154 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on CCCH\n"); |
| 1155 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) |
| 1156 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on PACCH\n"); |
| 1157 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_UL_DATA))) |
| 1158 | LOGP(DRLCMAC, LOGL_NOTICE, "- Uplink data was received\n"); |
| 1159 | else if (direction == GPRS_RLCMAC_UL_TBF) |
| 1160 | LOGP(DRLCMAC, LOGL_NOTICE, "- No uplink data received yet\n"); |
| 1161 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) |
| 1162 | LOGP(DRLCMAC, LOGL_NOTICE, "- Downlink ACK was received\n"); |
| 1163 | else if (direction == GPRS_RLCMAC_DL_TBF) |
| 1164 | LOGP(DRLCMAC, LOGL_NOTICE, "- No downlink ACK received yet\n"); |
| 1165 | |
| 1166 | return 0; |
| 1167 | } |
| 1168 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1169 | 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] | 1170 | { |
| 1171 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1172 | struct gprs_rlcmac_dl_tbf *new_dl_tbf = NULL; |
Holger Hans Peter Freyther | 9977e15 | 2013-11-24 22:52:10 +0100 | [diff] [blame] | 1173 | int poll_ass_dl = 1; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1174 | unsigned int rrbp = 0; |
| 1175 | uint32_t new_poll_fn = 0; |
| 1176 | int rc; |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 1177 | bool old_tfi_is_valid = is_tfi_assigned(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1178 | |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1179 | if (direction == GPRS_RLCMAC_DL_TBF && !is_control_ts(ts)) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1180 | LOGP(DRLCMAC, LOGL_NOTICE, "Cannot poll for downlink " |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1181 | "assigment, because MS cannot reply. (TS=%d, " |
| 1182 | "first common TS=%d)\n", ts, |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1183 | first_common_ts); |
| 1184 | poll_ass_dl = 0; |
| 1185 | } |
| 1186 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1187 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1188 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) |
| 1189 | { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1190 | LOGPTBFUL(this, LOGL_DEBUG, |
| 1191 | "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] | 1192 | return NULL; |
| 1193 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1194 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1195 | if (rc < 0) |
| 1196 | return NULL; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1197 | } |
| 1198 | |
| 1199 | /* on uplink TBF we get the downlink TBF to be assigned. */ |
| 1200 | if (direction == GPRS_RLCMAC_UL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 1201 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1202 | |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1203 | /* be sure to check first, if contention resolution is done, |
| 1204 | * otherwise we cannot send the assignment yet */ |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 1205 | if (!ul_tbf->m_contention_resolution_done) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1206 | LOGP(DRLCMAC, LOGL_DEBUG, "Cannot assign DL TBF now, " |
| 1207 | "because contention resolution is not " |
| 1208 | "finished.\n"); |
| 1209 | return NULL; |
| 1210 | } |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 1211 | } |
| 1212 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1213 | if (ms()) |
| 1214 | new_dl_tbf = ms()->dl_tbf(); |
| 1215 | |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1216 | if (!new_dl_tbf) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1217 | LOGPTBFDL(this, LOGL_ERROR, |
| 1218 | "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] | 1219 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 1220 | return NULL; |
| 1221 | } |
| 1222 | |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 1223 | if (new_dl_tbf == as_dl_tbf(this)) |
| 1224 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 1225 | "New and old TBF are the same %s\n", name()); |
| 1226 | |
| 1227 | if (old_tfi_is_valid && !new_dl_tbf->is_tlli_valid()) { |
| 1228 | LOGP(DRLCMACDL, LOGL_ERROR, |
| 1229 | "The old TFI is not assigned and there is no " |
| 1230 | "TLLI. Old TBF %s, new TBF %s\n", |
| 1231 | name(), new_dl_tbf->name()); |
| 1232 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 1233 | return NULL; |
| 1234 | } |
| 1235 | |
Holger Hans Peter Freyther | f5c9747 | 2014-12-26 18:32:00 +0100 | [diff] [blame] | 1236 | new_dl_tbf->was_releasing = was_releasing; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1237 | msg = msgb_alloc(23, "rlcmac_dl_ass"); |
| 1238 | if (!msg) |
| 1239 | return NULL; |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1240 | bitvec *ass_vec = bitvec_alloc(23, tall_pcu_ctx); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1241 | if (!ass_vec) { |
| 1242 | msgb_free(msg); |
| 1243 | return NULL; |
| 1244 | } |
| 1245 | bitvec_unhex(ass_vec, |
| 1246 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1247 | 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] | 1248 | 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] | 1249 | Encoding::write_packet_downlink_assignment(mac_control_block, |
| 1250 | old_tfi_is_valid, m_tfi, (direction == GPRS_RLCMAC_DL_TBF), |
| 1251 | new_dl_tbf, poll_ass_dl, rrbp, |
| 1252 | bts_data()->alpha, bts_data()->gamma, -1, 0, |
Jacob Erlbeck | 166c9fc | 2016-01-07 16:04:29 +0100 | [diff] [blame] | 1253 | is_egprs_enabled()); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1254 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++\n"); |
| 1255 | encode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 1256 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 1257 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Downlink Assignment -------------------------\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 1258 | bts->pkt_dl_assignemnt(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1259 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1260 | bitvec_free(ass_vec); |
| 1261 | talloc_free(mac_control_block); |
| 1262 | |
| 1263 | if (poll_ass_dl) { |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 1264 | 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] | 1265 | } else { |
| 1266 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 1267 | new_dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1268 | tbf_assign_control_ts(new_dl_tbf); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1269 | /* stop pending assignment timer */ |
Max | cea806e | 2017-12-01 17:40:20 +0100 | [diff] [blame] | 1270 | new_dl_tbf->stop_timer("assignment (DL-TBF)"); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1271 | |
| 1272 | } |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1273 | |
| 1274 | return msg; |
| 1275 | } |
| 1276 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1277 | struct msgb *gprs_rlcmac_tbf::create_packet_access_reject() |
| 1278 | { |
| 1279 | struct msgb *msg; |
| 1280 | |
| 1281 | msg = msgb_alloc(23, "rlcmac_ul_ass_rej"); |
| 1282 | |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1283 | bitvec *packet_access_rej = bitvec_alloc(23, tall_pcu_ctx); |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1284 | |
| 1285 | bitvec_unhex(packet_access_rej, |
| 1286 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
| 1287 | |
| 1288 | Encoding::write_packet_access_reject( |
| 1289 | packet_access_rej, tlli()); |
| 1290 | |
sivasankari | 168911b | 2016-11-25 19:53:36 +0530 | [diff] [blame] | 1291 | bts->pkt_access_reject(); |
| 1292 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1293 | bitvec_pack(packet_access_rej, msgb_put(msg, 23)); |
| 1294 | |
| 1295 | bitvec_free(packet_access_rej); |
| 1296 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1297 | |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1298 | /* Start Tmr only if it is UL TBF */ |
| 1299 | if (direction == GPRS_RLCMAC_UL_TBF) |
Max | cea806e | 2017-12-01 17:40:20 +0100 | [diff] [blame] | 1300 | tbf_timer_start(this, 0, Treject_pacch, "reject (PACCH)"); |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1301 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1302 | return msg; |
| 1303 | |
| 1304 | } |
| 1305 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1306 | 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] | 1307 | { |
| 1308 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1309 | struct gprs_rlcmac_ul_tbf *new_tbf = NULL; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1310 | int rc; |
| 1311 | unsigned int rrbp; |
| 1312 | uint32_t new_poll_fn; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1313 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1314 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1315 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1316 | LOGPTBFUL(this, LOGL_DEBUG, |
| 1317 | "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] | 1318 | return NULL; |
| 1319 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1320 | |
| 1321 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1322 | if (rc < 0) |
| 1323 | return NULL; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1324 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1325 | if (ms()) |
| 1326 | new_tbf = ms()->ul_tbf(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1327 | if (!new_tbf) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1328 | LOGPTBFUL(this, LOGL_ERROR, |
| 1329 | "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] | 1330 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1331 | return NULL; |
| 1332 | } |
| 1333 | |
| 1334 | msg = msgb_alloc(23, "rlcmac_ul_ass"); |
| 1335 | if (!msg) |
| 1336 | return NULL; |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1337 | LOGPTBF(new_tbf, LOGL_INFO, "start Packet Uplink Assignment (PACCH)\n"); |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1338 | bitvec *ass_vec = bitvec_alloc(23, tall_pcu_ctx); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1339 | if (!ass_vec) { |
| 1340 | msgb_free(msg); |
| 1341 | return NULL; |
| 1342 | } |
| 1343 | bitvec_unhex(ass_vec, |
| 1344 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1345 | Encoding::write_packet_uplink_assignment(bts_data(), ass_vec, m_tfi, |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1346 | (direction == GPRS_RLCMAC_DL_TBF), tlli(), |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1347 | is_tlli_valid(), new_tbf, 1, rrbp, bts_data()->alpha, |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 1348 | bts_data()->gamma, -1, is_egprs_enabled()); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1349 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1350 | RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)talloc_zero(tall_pcu_ctx, RlcMacDownlink_t); |
| 1351 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++\n"); |
| 1352 | decode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 1353 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 1354 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Uplink Assignment -------------------------\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 1355 | bts->pkt_ul_assignment(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1356 | bitvec_free(ass_vec); |
| 1357 | talloc_free(mac_control_block); |
| 1358 | |
Max | f60cf62 | 2017-07-10 14:40:09 +0200 | [diff] [blame] | 1359 | 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] | 1360 | |
| 1361 | return msg; |
| 1362 | } |
| 1363 | |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1364 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_trx *trx) |
| 1365 | { |
Jacob Erlbeck | 3a10dbd | 2015-07-10 19:52:37 +0200 | [diff] [blame] | 1366 | for (uint8_t ts = 0; ts < 8; ts++) |
| 1367 | free_all(&trx->pdch[ts]); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1368 | } |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1369 | |
| 1370 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_pdch *pdch) |
| 1371 | { |
| 1372 | for (uint8_t tfi = 0; tfi < 32; tfi++) { |
| 1373 | struct gprs_rlcmac_tbf *tbf; |
| 1374 | |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1375 | tbf = pdch->ul_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1376 | if (tbf) |
| 1377 | tbf_free(tbf); |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1378 | tbf = pdch->dl_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1379 | if (tbf) |
| 1380 | tbf_free(tbf); |
| 1381 | } |
| 1382 | } |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1383 | |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1384 | int gprs_rlcmac_tbf::establish_dl_tbf_on_pacch() |
| 1385 | { |
| 1386 | struct gprs_rlcmac_dl_tbf *new_tbf = NULL; |
| 1387 | |
| 1388 | bts->tbf_reused(); |
| 1389 | |
| 1390 | new_tbf = tbf_alloc_dl_tbf(bts->bts_data(), ms(), |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1391 | this->trx->trx_no, ms_class(), |
| 1392 | ms() ? ms()->egprs_ms_class() : 0, 0); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1393 | |
| 1394 | if (!new_tbf) { |
| 1395 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
| 1396 | return -1; |
| 1397 | } |
| 1398 | |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1399 | LOGPTBF(this, LOGL_DEBUG, "Trigger downlink assignment on PACCH\n"); |
Max | a10c398 | 2017-07-07 18:25:41 +0200 | [diff] [blame] | 1400 | new_tbf->trigger_ass(this); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1401 | |
| 1402 | return 0; |
| 1403 | } |
| 1404 | |
Jacob Erlbeck | e8f5fe5 | 2015-12-14 13:23:15 +0100 | [diff] [blame] | 1405 | 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] | 1406 | { |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1407 | struct gprs_rlcmac_tbf *dl_tbf = NULL; |
| 1408 | struct gprs_rlcmac_tbf *ul_tbf = NULL; |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1409 | GprsMs *old_ms; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1410 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1411 | OSMO_ASSERT(direction == GPRS_RLCMAC_UL_TBF); |
| 1412 | |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1413 | old_ms = bts->ms_by_tlli(new_tlli); |
Jacob Erlbeck | 9659d59 | 2015-09-01 11:06:14 +0200 | [diff] [blame] | 1414 | /* Keep the old MS object for the update_ms() */ |
| 1415 | GprsMs::Guard guard(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1416 | if (old_ms) { |
| 1417 | /* Get them before calling set_ms() */ |
| 1418 | dl_tbf = old_ms->dl_tbf(); |
| 1419 | ul_tbf = old_ms->ul_tbf(); |
| 1420 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1421 | if (!ms()) |
| 1422 | set_ms(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1423 | } |
| 1424 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1425 | if (dl_tbf && dl_tbf->ms() != ms()) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1426 | LOGPTBFUL(dl_tbf, LOGL_NOTICE, |
| 1427 | "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] | 1428 | tbf_free(dl_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1429 | dl_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1430 | } |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1431 | if (ul_tbf && ul_tbf->ms() != ms()) { |
Max | c21f007 | 2017-12-15 17:36:45 +0100 | [diff] [blame] | 1432 | LOGPTBFUL(ul_tbf, LOGL_NOTICE, |
| 1433 | "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] | 1434 | tbf_free(ul_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1435 | ul_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1436 | } |
Jacob Erlbeck | 5f93f85 | 2016-01-21 20:48:39 +0100 | [diff] [blame] | 1437 | |
| 1438 | /* The TLLI has been taken from an UL message */ |
| 1439 | update_ms(new_tlli, GPRS_RLCMAC_UL_TBF); |
| 1440 | |
| 1441 | #if 0 /* REMOVEME ??? */ |
| 1442 | if (ms()->need_dl_tbf()) |
| 1443 | establish_dl_tbf_on_pacch(); |
| 1444 | #endif |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1445 | return 1; |
| 1446 | } |
| 1447 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1448 | const char *tbf_name(gprs_rlcmac_tbf *tbf) |
| 1449 | { |
Alexander Couzens | e04fd0c | 2016-05-31 13:18:01 +0200 | [diff] [blame] | 1450 | return tbf ? tbf->name() : "(no TBF)"; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1451 | } |
| 1452 | |
| 1453 | const char *gprs_rlcmac_tbf::name() const |
| 1454 | { |
| 1455 | snprintf(m_name_buf, sizeof(m_name_buf) - 1, |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1456 | "TBF(TFI=%d TLLI=0x%08x DIR=%s STATE=%s%s)", |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1457 | m_tfi, tlli(), |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1458 | direction == GPRS_RLCMAC_UL_TBF ? "UL" : "DL", |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1459 | state_name(), |
| 1460 | is_egprs_enabled() ? " EGPRS" : "" |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1461 | ); |
| 1462 | m_name_buf[sizeof(m_name_buf) - 1] = '\0'; |
| 1463 | return m_name_buf; |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1464 | } |
Holger Hans Peter Freyther | 758dc12 | 2013-11-06 20:39:45 +0100 | [diff] [blame] | 1465 | |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1466 | void gprs_rlcmac_tbf::rotate_in_list() |
| 1467 | { |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1468 | llist_del(&list()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1469 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1470 | llist_add(&list(), &bts->ul_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1471 | else |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1472 | llist_add(&list(), &bts->dl_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1473 | } |
Holger Hans Peter Freyther | 8f399de | 2013-12-25 20:22:35 +0100 | [diff] [blame] | 1474 | |
| 1475 | uint8_t gprs_rlcmac_tbf::tsc() const |
| 1476 | { |
| 1477 | return trx->pdch[first_ts].tsc; |
| 1478 | } |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 1479 | |
Jacob Erlbeck | 617c712 | 2015-06-30 09:18:30 +0200 | [diff] [blame] | 1480 | uint8_t gprs_rlcmac_tbf::dl_slots() const |
| 1481 | { |
| 1482 | uint8_t slots = 0; |
| 1483 | size_t i; |
| 1484 | |
| 1485 | if (direction == GPRS_RLCMAC_UL_TBF) |
| 1486 | return 0; |
| 1487 | |
| 1488 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1489 | if (pdch[i]) |
| 1490 | slots |= 1 << i; |
| 1491 | |
| 1492 | return slots; |
| 1493 | } |
| 1494 | |
| 1495 | uint8_t gprs_rlcmac_tbf::ul_slots() const |
| 1496 | { |
| 1497 | uint8_t slots = 0; |
| 1498 | size_t i; |
| 1499 | |
| 1500 | if (direction == GPRS_RLCMAC_DL_TBF) { |
| 1501 | if (control_ts < 8) |
| 1502 | slots |= 1 << control_ts; |
| 1503 | if (first_common_ts < 8) |
| 1504 | slots |= 1 << first_common_ts; |
| 1505 | |
| 1506 | return slots; |
| 1507 | } |
| 1508 | |
| 1509 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1510 | if (pdch[i]) |
| 1511 | slots |= 1 << i; |
| 1512 | |
| 1513 | return slots; |
| 1514 | } |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1515 | |
| 1516 | bool gprs_rlcmac_tbf::is_control_ts(uint8_t ts) const |
| 1517 | { |
| 1518 | return ts == control_ts; |
| 1519 | } |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1520 | |
| 1521 | struct gprs_rlcmac_ul_tbf *handle_tbf_reject(struct gprs_rlcmac_bts *bts, |
| 1522 | GprsMs *ms, uint32_t tlli, uint8_t trx_no, uint8_t ts) |
| 1523 | { |
| 1524 | struct gprs_rlcmac_ul_tbf *ul_tbf = NULL; |
| 1525 | struct gprs_rlcmac_trx *trx = &bts->trx[trx_no]; |
| 1526 | |
| 1527 | ul_tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf); |
| 1528 | if (!ul_tbf) |
| 1529 | return ul_tbf; |
| 1530 | |
| 1531 | talloc_set_destructor(ul_tbf, ul_tbf_dtor); |
| 1532 | new (ul_tbf) gprs_rlcmac_ul_tbf(bts->bts); |
| 1533 | if (!ms) |
| 1534 | ms = bts->bts->ms_alloc(0, 0); |
| 1535 | |
| 1536 | ms->set_tlli(tlli); |
| 1537 | |
| 1538 | llist_add(&ul_tbf->list(), &bts->bts->ul_tbfs()); |
| 1539 | ul_tbf->bts->tbf_ul_created(); |
| 1540 | ul_tbf->set_state(GPRS_RLCMAC_ASSIGN); |
| 1541 | ul_tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH); |
| 1542 | |
| 1543 | ul_tbf->set_ms(ms); |
| 1544 | ul_tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF); |
| 1545 | ul_tbf->ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ; |
| 1546 | ul_tbf->control_ts = ts; |
| 1547 | ul_tbf->trx = trx; |
| 1548 | ul_tbf->m_ctrs = rate_ctr_group_alloc(ul_tbf, &tbf_ctrg_desc, 0); |
| 1549 | ul_tbf->m_ul_egprs_ctrs = rate_ctr_group_alloc(ul_tbf, |
| 1550 | &tbf_ul_egprs_ctrg_desc, 0); |
| 1551 | ul_tbf->m_ul_gprs_ctrs = rate_ctr_group_alloc(ul_tbf, |
| 1552 | &tbf_ul_gprs_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 1553 | if (!ul_tbf->m_ctrs || !ul_tbf->m_ul_egprs_ctrs || !ul_tbf->m_ul_gprs_ctrs) { |
| 1554 | LOGP(DRLCMAC, LOGL_ERROR, "Cound not allocate TBF UL rate counters\n"); |
| 1555 | talloc_free(ul_tbf); |
| 1556 | return NULL; |
| 1557 | } |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1558 | |
| 1559 | return ul_tbf; |
| 1560 | } |