Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 1 | /* Copied from gprs_bssgp_pcu.cpp |
| 2 | * |
| 3 | * Copyright (C) 2012 Ivan Klyuchnikov |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 4 | * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 5 | * Copyright (C) 2013 by Holger Hans Peter Freyther |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 20 | */ |
| 21 | |
Holger Hans Peter Freyther | 67ed34e | 2013-10-17 17:01:54 +0200 | [diff] [blame] | 22 | #include <bts.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 23 | #include <tbf.h> |
Holger Hans Peter Freyther | d11290b | 2013-10-26 17:32:04 +0200 | [diff] [blame] | 24 | #include <rlc.h> |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 25 | #include <encoding.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 26 | #include <gprs_rlcmac.h> |
| 27 | #include <gprs_debug.h> |
Holger Hans Peter Freyther | 3dc56a3 | 2013-10-26 21:38:30 +0200 | [diff] [blame] | 28 | #include <gprs_bssgp_pcu.h> |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 29 | #include <gprs_ms.h> |
Holger Hans Peter Freyther | 77e0597 | 2013-11-06 19:16:43 +0100 | [diff] [blame] | 30 | #include <decoding.h> |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 31 | #include <pcu_utils.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 32 | |
| 33 | extern "C" { |
| 34 | #include <osmocom/core/msgb.h> |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 35 | #include <osmocom/core/talloc.h> |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 36 | #include <osmocom/core/stats.h> |
Holger Hans Peter Freyther | 17c31ce | 2013-08-24 18:31:27 +0200 | [diff] [blame] | 37 | } |
| 38 | |
| 39 | #include <errno.h> |
| 40 | #include <string.h> |
| 41 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 42 | extern void *tall_pcu_ctx; |
| 43 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 44 | static void tbf_timer_cb(void *_tbf); |
| 45 | |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 46 | const struct value_string gprs_rlcmac_tbf_dl_ass_state_names[] = { |
| 47 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_NONE), |
| 48 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_SEND_ASS), |
| 49 | OSMO_VALUE_STRING(GPRS_RLCMAC_DL_ASS_WAIT_ACK), |
| 50 | { 0, NULL } |
| 51 | }; |
| 52 | |
| 53 | const struct value_string gprs_rlcmac_tbf_ul_ass_state_names[] = { |
| 54 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_NONE), |
| 55 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_SEND_ASS), |
| 56 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ), |
| 57 | OSMO_VALUE_STRING(GPRS_RLCMAC_UL_ASS_WAIT_ACK), |
| 58 | { 0, NULL } |
| 59 | }; |
| 60 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 61 | static const struct rate_ctr_desc tbf_ctr_description[] = { |
| 62 | { "rlc.nacked", "RLC Nacked " }, |
| 63 | }; |
| 64 | |
| 65 | static const struct rate_ctr_desc tbf_dl_gprs_ctr_description[] = { |
| 66 | { "gprs.downlink.cs1", "CS1 " }, |
| 67 | { "gprs.downlink.cs2", "CS2 " }, |
| 68 | { "gprs.downlink.cs3", "CS3 " }, |
| 69 | { "gprs.downlink.cs4", "CS4 " }, |
| 70 | }; |
| 71 | |
| 72 | static const struct rate_ctr_desc tbf_dl_egprs_ctr_description[] = { |
| 73 | { "egprs.downlink.mcs1", "MCS1 " }, |
| 74 | { "egprs.downlink.mcs2", "MCS2 " }, |
| 75 | { "egprs.downlink.mcs3", "MCS3 " }, |
| 76 | { "egprs.downlink.mcs4", "MCS4 " }, |
| 77 | { "egprs.downlink.mcs5", "MCS5 " }, |
| 78 | { "egprs.downlink.mcs6", "MCS6 " }, |
| 79 | { "egprs.downlink.mcs7", "MCS7 " }, |
| 80 | { "egprs.downlink.mcs8", "MCS8 " }, |
| 81 | { "egprs.downlink.mcs9", "MCS9 " }, |
| 82 | }; |
| 83 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 84 | static const struct rate_ctr_desc tbf_ul_gprs_ctr_description[] = { |
| 85 | { "gprs.uplink.cs1", "CS1 " }, |
| 86 | { "gprs.uplink.cs2", "CS2 " }, |
| 87 | { "gprs.uplink.cs3", "CS3 " }, |
| 88 | { "gprs.uplink.cs4", "CS4 " }, |
| 89 | }; |
| 90 | |
| 91 | static const struct rate_ctr_desc tbf_ul_egprs_ctr_description[] = { |
| 92 | { "egprs.uplink.mcs1", "MCS1 " }, |
| 93 | { "egprs.uplink.mcs2", "MCS2 " }, |
| 94 | { "egprs.uplink.mcs3", "MCS3 " }, |
| 95 | { "egprs.uplink.mcs4", "MCS4 " }, |
| 96 | { "egprs.uplink.mcs5", "MCS5 " }, |
| 97 | { "egprs.uplink.mcs6", "MCS6 " }, |
| 98 | { "egprs.uplink.mcs7", "MCS7 " }, |
| 99 | { "egprs.uplink.mcs8", "MCS8 " }, |
| 100 | { "egprs.uplink.mcs9", "MCS9 " }, |
| 101 | }; |
| 102 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 103 | static const struct rate_ctr_group_desc tbf_ctrg_desc = { |
| 104 | "pcu.tbf", |
| 105 | "TBF Statistics", |
| 106 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 107 | ARRAY_SIZE(tbf_ctr_description), |
| 108 | tbf_ctr_description, |
| 109 | }; |
| 110 | |
| 111 | static const struct rate_ctr_group_desc tbf_dl_gprs_ctrg_desc = { |
| 112 | "tbf.gprs", |
| 113 | "Data Blocks", |
| 114 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 115 | ARRAY_SIZE(tbf_dl_gprs_ctr_description), |
| 116 | tbf_dl_gprs_ctr_description, |
| 117 | }; |
| 118 | |
| 119 | static const struct rate_ctr_group_desc tbf_dl_egprs_ctrg_desc = { |
| 120 | "tbf.egprs", |
| 121 | "Data Blocks", |
| 122 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 123 | ARRAY_SIZE(tbf_dl_egprs_ctr_description), |
| 124 | tbf_dl_egprs_ctr_description, |
| 125 | }; |
| 126 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 127 | static const struct rate_ctr_group_desc tbf_ul_gprs_ctrg_desc = { |
| 128 | "tbf.gprs", |
| 129 | "Data Blocks", |
| 130 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 131 | ARRAY_SIZE(tbf_ul_gprs_ctr_description), |
| 132 | tbf_ul_gprs_ctr_description, |
| 133 | }; |
| 134 | |
| 135 | static const struct rate_ctr_group_desc tbf_ul_egprs_ctrg_desc = { |
| 136 | "tbf.egprs", |
| 137 | "Data Blocks", |
| 138 | OSMO_STATS_CLASS_SUBSCRIBER, |
| 139 | ARRAY_SIZE(tbf_ul_egprs_ctr_description), |
| 140 | tbf_ul_egprs_ctr_description, |
| 141 | }; |
| 142 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 143 | gprs_rlcmac_tbf::Meas::Meas() : |
| 144 | rssi_sum(0), |
| 145 | rssi_num(0) |
| 146 | { |
| 147 | timerclear(&rssi_tv); |
| 148 | } |
| 149 | |
| 150 | gprs_rlcmac_tbf::gprs_rlcmac_tbf(BTS *bts_, gprs_rlcmac_tbf_direction dir) : |
| 151 | state_flags(0), |
Jacob Erlbeck | 6835cea | 2015-08-21 15:24:02 +0200 | [diff] [blame] | 152 | direction(dir), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 153 | trx(NULL), |
| 154 | first_ts(0), |
| 155 | first_common_ts(0), |
| 156 | control_ts(0xff), |
| 157 | dl_ass_state(GPRS_RLCMAC_DL_ASS_NONE), |
| 158 | ul_ass_state(GPRS_RLCMAC_UL_ASS_NONE), |
| 159 | ul_ack_state(GPRS_RLCMAC_UL_ACK_NONE), |
| 160 | poll_state(GPRS_RLCMAC_POLL_NONE), |
| 161 | poll_fn(0), |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 162 | poll_ts(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 163 | n3105(0), |
| 164 | T(0), |
| 165 | num_T_exp(0), |
| 166 | fT(0), |
| 167 | num_fT_exp(0), |
| 168 | state(GPRS_RLCMAC_NULL), |
| 169 | was_releasing(0), |
| 170 | upgrade_to_multislot(0), |
| 171 | bts(bts_), |
| 172 | m_tfi(0), |
| 173 | m_created_ts(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 174 | m_ctrs(NULL), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 175 | m_ms(NULL), |
Max | 9bbe160 | 2016-07-18 12:50:18 +0200 | [diff] [blame] | 176 | m_ta(GSM48_TA_INVALID), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 177 | m_ms_class(0), |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 178 | m_list(this), |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 179 | m_ms_list(this), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 180 | m_egprs_enabled(false) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 181 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 182 | /* The classes of these members do not have proper constructors yet. |
| 183 | * Just set them to 0 like talloc_zero did */ |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 184 | memset(&pdch, 0, sizeof(pdch)); |
| 185 | memset(&timer, 0, sizeof(timer)); |
| 186 | memset(&m_rlc, 0, sizeof(m_rlc)); |
| 187 | memset(&gsm_timer, 0, sizeof(gsm_timer)); |
| 188 | |
| 189 | m_llc.init(); |
| 190 | |
| 191 | m_name_buf[0] = '\0'; |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 192 | } |
| 193 | |
Daniel Willmann | ca102af | 2014-08-08 12:14:12 +0200 | [diff] [blame] | 194 | gprs_rlcmac_bts *gprs_rlcmac_tbf::bts_data() const |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 195 | { |
| 196 | return bts->bts_data(); |
| 197 | } |
| 198 | |
Jacob Erlbeck | 8759735 | 2015-05-18 11:56:50 +0200 | [diff] [blame] | 199 | uint32_t gprs_rlcmac_tbf::tlli() const |
| 200 | { |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 201 | return m_ms ? m_ms->tlli() : 0; |
Jacob Erlbeck | 8759735 | 2015-05-18 11:56:50 +0200 | [diff] [blame] | 202 | } |
| 203 | |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 204 | const char *gprs_rlcmac_tbf::imsi() const |
Holger Hans Peter Freyther | d868928 | 2013-08-24 20:51:06 +0200 | [diff] [blame] | 205 | { |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 206 | static const char nullc = 0; |
| 207 | return m_ms ? m_ms->imsi() : &nullc; |
| 208 | } |
| 209 | |
| 210 | void gprs_rlcmac_tbf::assign_imsi(const char *imsi_) |
| 211 | { |
| 212 | GprsMs *old_ms; |
| 213 | |
| 214 | if (!imsi_ || !m_ms) { |
| 215 | LOGP(DRLCMAC, LOGL_ERROR, |
| 216 | "%s failed to assign IMSI: missing IMSI or MS object\n", |
| 217 | name()); |
| 218 | return; |
| 219 | } |
| 220 | |
| 221 | if (strcmp(imsi_, imsi()) == 0) |
| 222 | return; |
| 223 | |
| 224 | /* really change the IMSI */ |
| 225 | |
| 226 | old_ms = bts->ms_store().get_ms(0, 0, imsi_); |
| 227 | if (old_ms) { |
| 228 | /* We cannot find m_ms by IMSI since we know that it has a |
| 229 | * different IMSI */ |
| 230 | OSMO_ASSERT(old_ms != m_ms); |
| 231 | |
| 232 | LOGP(DRLCMAC, LOGL_INFO, |
| 233 | "%s the IMSI '%s' was already assigned to another " |
| 234 | "MS object: TLLI = 0x%08x, that IMSI will be removed\n", |
| 235 | name(), imsi_, old_ms->tlli()); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 236 | |
| 237 | merge_and_clear_ms(old_ms); |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 238 | } |
| 239 | |
| 240 | m_ms->set_imsi(imsi_); |
Holger Hans Peter Freyther | d868928 | 2013-08-24 20:51:06 +0200 | [diff] [blame] | 241 | } |
| 242 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 243 | uint8_t gprs_rlcmac_tbf::ta() const |
| 244 | { |
| 245 | return m_ms ? m_ms->ta() : m_ta; |
| 246 | } |
| 247 | |
| 248 | void gprs_rlcmac_tbf::set_ta(uint8_t ta) |
| 249 | { |
| 250 | if (ms()) |
| 251 | ms()->set_ta(ta); |
| 252 | |
Max | 9bbe160 | 2016-07-18 12:50:18 +0200 | [diff] [blame] | 253 | if (gsm48_ta_is_valid(ta)) |
| 254 | m_ta = ta; |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 255 | } |
| 256 | |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 257 | uint8_t gprs_rlcmac_tbf::ms_class() const |
| 258 | { |
| 259 | return m_ms ? m_ms->ms_class() : m_ms_class; |
| 260 | } |
| 261 | |
| 262 | void gprs_rlcmac_tbf::set_ms_class(uint8_t ms_class_) |
| 263 | { |
| 264 | if (ms()) |
| 265 | ms()->set_ms_class(ms_class_); |
| 266 | |
| 267 | m_ms_class = ms_class_; |
| 268 | } |
| 269 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 270 | GprsCodingScheme gprs_rlcmac_tbf::current_cs() const |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 271 | { |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 272 | GprsCodingScheme cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 273 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 274 | cs = m_ms ? m_ms->current_cs_ul() : GprsCodingScheme(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 275 | else |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 276 | cs = m_ms ? m_ms->current_cs_dl() : GprsCodingScheme(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 277 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 278 | return cs; |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 279 | } |
| 280 | |
Jacob Erlbeck | 489a2b3 | 2015-05-28 19:07:01 +0200 | [diff] [blame] | 281 | gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() |
| 282 | { |
| 283 | return m_ms ? m_ms->llc_queue() : NULL; |
| 284 | } |
| 285 | |
| 286 | const gprs_llc_queue *gprs_rlcmac_tbf::llc_queue() const |
| 287 | { |
| 288 | return m_ms ? m_ms->llc_queue() : NULL; |
| 289 | } |
| 290 | |
Alexander Couzens | d38b92e | 2016-08-21 19:38:30 +0200 | [diff] [blame] | 291 | int gprs_rlcmac_tbf::llc_queue_size() const |
| 292 | { |
| 293 | /* m_ms->llc_queue() never returns NULL: GprsMs::m_llc_queue is a |
| 294 | * member instance. */ |
| 295 | return m_ms ? m_ms->llc_queue()->size() : 0; |
| 296 | } |
| 297 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 298 | void gprs_rlcmac_tbf::set_ms(GprsMs *ms) |
| 299 | { |
| 300 | if (m_ms == ms) |
| 301 | return; |
| 302 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 303 | if (m_ms) { |
| 304 | /* Save the TA locally. This will also be called, if the MS |
| 305 | * object detaches itself from the TBF, for instance if |
| 306 | * attach_tbf() is called */ |
| 307 | m_ta = m_ms->ta(); |
| 308 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 309 | m_ms->detach_tbf(this); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 310 | } |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 311 | |
| 312 | m_ms = ms; |
| 313 | |
| 314 | if (m_ms) |
| 315 | m_ms->attach_tbf(this); |
| 316 | } |
| 317 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 318 | void gprs_rlcmac_tbf::merge_and_clear_ms(GprsMs *old_ms) |
| 319 | { |
| 320 | if (old_ms == ms()) |
| 321 | return; |
| 322 | |
| 323 | GprsMs::Guard guard_old(old_ms); |
| 324 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 325 | /* Clean up the old MS object */ |
| 326 | /* TODO: Use timer? */ |
| 327 | if (old_ms->ul_tbf() && old_ms->ul_tbf()->T == 0) { |
| 328 | if (old_ms->ul_tbf() == this) { |
| 329 | LOGP(DRLCMAC, LOGL_ERROR, |
| 330 | "%s is referred by the old MS " |
| 331 | "and will not be deleted\n", |
| 332 | name()); |
| 333 | set_ms(NULL); |
| 334 | } else { |
| 335 | tbf_free(old_ms->ul_tbf()); |
| 336 | } |
| 337 | } |
| 338 | if (old_ms->dl_tbf() && old_ms->dl_tbf()->T == 0) { |
| 339 | if (old_ms->dl_tbf() == this) { |
| 340 | LOGP(DRLCMAC, LOGL_ERROR, |
| 341 | "%s is referred by the old MS " |
| 342 | "and will not be deleted\n", |
| 343 | name()); |
| 344 | set_ms(NULL); |
| 345 | } else { |
| 346 | tbf_free(old_ms->dl_tbf()); |
| 347 | } |
| 348 | } |
| 349 | |
Jacob Erlbeck | 2b349b5 | 2015-08-18 11:55:03 +0200 | [diff] [blame] | 350 | ms()->merge_old_ms(old_ms); |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 351 | } |
| 352 | |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 353 | 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] | 354 | { |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 355 | if (!ms()) |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 356 | return; |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 357 | |
| 358 | if (!tlli) |
| 359 | return; |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 360 | |
Jacob Erlbeck | 28c40b1 | 2015-08-16 18:19:32 +0200 | [diff] [blame] | 361 | /* TODO: When the TLLI does not match the ms, check if there is another |
| 362 | * MS object that belongs to that TLLI and if yes make sure one of them |
| 363 | * gets deleted. This is the same problem that can arise with |
| 364 | * assign_imsi() so there should be a unified solution */ |
| 365 | if (!ms()->check_tlli(tlli)) { |
| 366 | GprsMs *old_ms; |
| 367 | |
| 368 | old_ms = bts->ms_store().get_ms(tlli, 0, NULL); |
| 369 | if (old_ms) |
| 370 | merge_and_clear_ms(old_ms); |
| 371 | } |
| 372 | |
Jacob Erlbeck | 0e50ce6 | 2015-05-21 16:58:22 +0200 | [diff] [blame] | 373 | if (dir == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 374 | ms()->set_tlli(tlli); |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 375 | else |
| 376 | ms()->confirm_tlli(tlli); |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 377 | } |
| 378 | |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 379 | gprs_rlcmac_ul_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 380 | 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] | 381 | uint32_t tlli, uint8_t ta, GprsMs *ms) |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 382 | { |
Daniel Willmann | 0d12a2f | 2014-07-10 17:44:07 +0200 | [diff] [blame] | 383 | struct gprs_rlcmac_ul_tbf *tbf; |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 384 | |
| 385 | #warning "Copy and paste with tbf_new_dl_assignment" |
Holger Hans Peter Freyther | ba26368 | 2013-12-25 19:15:57 +0100 | [diff] [blame] | 386 | /* create new TBF, use same TRX as DL TBF */ |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 387 | /* use multislot class of downlink TBF */ |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 388 | 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] | 389 | if (!tbf) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 390 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 391 | /* FIXME: send reject */ |
| 392 | return NULL; |
| 393 | } |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 394 | tbf->m_contention_resolution_done = 1; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 395 | tbf->set_state(GPRS_RLCMAC_ASSIGN); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 396 | tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH); |
| 397 | tbf_timer_start(tbf, 3169, bts->t3169, 0); |
Jacob Erlbeck | be0cbc1 | 2015-05-18 14:35:11 +0200 | [diff] [blame] | 398 | tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF); |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 399 | OSMO_ASSERT(tbf->ms()); |
| 400 | |
| 401 | tbf->ms()->set_ta(ta); |
Holger Hans Peter Freyther | 8692128 | 2013-08-24 21:26:42 +0200 | [diff] [blame] | 402 | |
| 403 | return tbf; |
| 404 | } |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 405 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 406 | static void tbf_unlink_pdch(struct gprs_rlcmac_tbf *tbf) |
| 407 | { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 408 | int ts; |
| 409 | |
Jacob Erlbeck | ccc34e4 | 2015-06-29 13:45:05 +0200 | [diff] [blame] | 410 | for (ts = 0; ts < 8; ts++) { |
| 411 | if (!tbf->pdch[ts]) |
| 412 | continue; |
| 413 | |
| 414 | tbf->pdch[ts]->detach_tbf(tbf); |
| 415 | tbf->pdch[ts] = NULL; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 416 | } |
| 417 | } |
| 418 | |
| 419 | void tbf_free(struct gprs_rlcmac_tbf *tbf) |
| 420 | { |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 421 | /* update counters */ |
| 422 | if (tbf->direction == GPRS_RLCMAC_UL_TBF) { |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 423 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(tbf); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 424 | tbf->bts->tbf_ul_freed(); |
| 425 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 426 | tbf->bts->tbf_ul_aborted(); |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 427 | rate_ctr_group_free(ul_tbf->m_ul_egprs_ctrs); |
| 428 | rate_ctr_group_free(ul_tbf->m_ul_gprs_ctrs); |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 429 | } else { |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 430 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
| 431 | if (tbf->is_egprs_enabled()) { |
| 432 | rate_ctr_group_free(dl_tbf->m_dl_egprs_ctrs); |
| 433 | } else { |
| 434 | rate_ctr_group_free(dl_tbf->m_dl_gprs_ctrs); |
| 435 | } |
Jacob Erlbeck | 0316dc6 | 2016-01-21 20:12:04 +0100 | [diff] [blame] | 436 | tbf->bts->tbf_dl_freed(); |
| 437 | if (tbf->state_is(GPRS_RLCMAC_FLOW)) |
| 438 | tbf->bts->tbf_dl_aborted(); |
| 439 | } |
| 440 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 441 | /* Give final measurement report */ |
| 442 | gprs_rlcmac_rssi_rep(tbf); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 443 | if (tbf->direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 444 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(tbf); |
Jacob Erlbeck | f04a5b3 | 2016-01-21 20:42:40 +0100 | [diff] [blame] | 445 | |
| 446 | dl_tbf->abort(); |
Jacob Erlbeck | d0261b7 | 2015-04-02 13:58:09 +0200 | [diff] [blame] | 447 | dl_tbf->cleanup(); |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 448 | } |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 449 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 450 | LOGP(DRLCMAC, LOGL_INFO, "%s free\n", tbf_name(tbf)); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 451 | if (tbf->ul_ass_state != GPRS_RLCMAC_UL_ASS_NONE) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 452 | LOGP(DRLCMAC, LOGL_ERROR, "%s Software error: Pending uplink " |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 453 | "assignment in state %s. This may not happen, because the " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 454 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 455 | "be sure not to free in this state. PLEASE FIX!\n", |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 456 | tbf_name(tbf), |
| 457 | get_value_string(gprs_rlcmac_tbf_ul_ass_state_names, |
| 458 | tbf->ul_ass_state)); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 459 | if (tbf->dl_ass_state != GPRS_RLCMAC_DL_ASS_NONE) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 460 | LOGP(DRLCMAC, LOGL_ERROR, "%s Software error: Pending downlink " |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 461 | "assignment in state %s. This may not happen, because the " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 462 | "assignment message never gets transmitted. Please " |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 463 | "be sure not to free in this state. PLEASE FIX!\n", |
Max | e66de5b | 2017-01-05 18:26:58 +0100 | [diff] [blame] | 464 | tbf_name(tbf), |
| 465 | get_value_string(gprs_rlcmac_tbf_dl_ass_state_names, |
| 466 | tbf->dl_ass_state)); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 467 | tbf->stop_timer(); |
Holger Hans Peter Freyther | 782f6dd | 2013-10-26 18:31:51 +0200 | [diff] [blame] | 468 | #warning "TODO: Could/Should generate bssgp_tx_llc_discarded" |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 469 | tbf_unlink_pdch(tbf); |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 470 | llist_del(&tbf->list()); |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 471 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 472 | if (tbf->ms()) |
| 473 | tbf->set_ms(NULL); |
| 474 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 475 | rate_ctr_group_free(tbf->m_ctrs); |
| 476 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 477 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF ends here **********\n"); |
| 478 | talloc_free(tbf); |
| 479 | } |
| 480 | |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 481 | int gprs_rlcmac_tbf::update() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 482 | { |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 483 | struct gprs_rlcmac_bts *bts_data = bts->bts_data(); |
Jacob Erlbeck | e0c734d | 2015-07-03 14:03:33 +0200 | [diff] [blame] | 484 | int rc; |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 485 | |
| 486 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF update **********\n"); |
| 487 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 488 | if (direction != GPRS_RLCMAC_DL_TBF) |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 489 | return -EINVAL; |
| 490 | |
Holger Hans Peter Freyther | aa9c326 | 2013-10-26 17:49:36 +0200 | [diff] [blame] | 491 | tbf_unlink_pdch(this); |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 492 | rc = bts_data->alloc_algorithm(bts_data, ms(), this, |
| 493 | bts_data->alloc_algorithm_curst, 0, -1); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 494 | /* if no resource */ |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 495 | if (rc < 0) { |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 496 | LOGP(DRLCMAC, LOGL_ERROR, "No resource after update???\n"); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 497 | return -rc; |
| 498 | } |
| 499 | |
Aravind Sirsikar | 0ee31cf | 2016-09-15 17:54:46 +0530 | [diff] [blame] | 500 | if (is_egprs_enabled()) { |
| 501 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
| 502 | if (dl_tbf) |
| 503 | dl_tbf->egprs_calc_window_size(); |
| 504 | } |
| 505 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 506 | return 0; |
| 507 | } |
| 508 | |
| 509 | int tbf_assign_control_ts(struct gprs_rlcmac_tbf *tbf) |
| 510 | { |
| 511 | if (tbf->control_ts == 0xff) |
| 512 | LOGP(DRLCMAC, LOGL_INFO, "- Setting Control TS %d\n", |
| 513 | tbf->first_common_ts); |
| 514 | else if (tbf->control_ts != tbf->first_common_ts) |
| 515 | LOGP(DRLCMAC, LOGL_INFO, "- Changing Control TS %d\n", |
| 516 | tbf->first_common_ts); |
| 517 | tbf->control_ts = tbf->first_common_ts; |
| 518 | |
| 519 | return 0; |
| 520 | } |
| 521 | |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 522 | const char *gprs_rlcmac_tbf::tbf_state_name[] = { |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 523 | "NULL", |
| 524 | "ASSIGN", |
| 525 | "FLOW", |
| 526 | "FINISHED", |
| 527 | "WAIT RELEASE", |
| 528 | "RELEASING", |
| 529 | }; |
| 530 | |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 531 | void tbf_timer_start(struct gprs_rlcmac_tbf *tbf, unsigned int T, |
| 532 | unsigned int seconds, unsigned int microseconds) |
| 533 | { |
| 534 | if (!osmo_timer_pending(&tbf->timer)) |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 535 | LOGP(DRLCMAC, LOGL_DEBUG, "%s starting timer %u.\n", |
| 536 | tbf_name(tbf), T); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 537 | else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 538 | LOGP(DRLCMAC, LOGL_DEBUG, "%s restarting timer %u " |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 539 | "while old timer %u pending \n", |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 540 | tbf_name(tbf), T, tbf->T); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 541 | |
| 542 | tbf->T = T; |
| 543 | tbf->num_T_exp = 0; |
| 544 | |
| 545 | /* Tunning timers can be safely re-scheduled. */ |
| 546 | tbf->timer.data = tbf; |
| 547 | tbf->timer.cb = &tbf_timer_cb; |
| 548 | |
| 549 | osmo_timer_schedule(&tbf->timer, seconds, microseconds); |
| 550 | } |
| 551 | |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 552 | void gprs_rlcmac_tbf::stop_t3191() |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 553 | { |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 554 | return stop_timer(); |
| 555 | } |
| 556 | |
| 557 | void gprs_rlcmac_tbf::stop_timer() |
| 558 | { |
| 559 | if (osmo_timer_pending(&timer)) { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 560 | LOGP(DRLCMAC, LOGL_DEBUG, "%s stopping timer %u.\n", |
| 561 | tbf_name(this), T); |
Holger Hans Peter Freyther | 86300bb | 2013-10-26 18:01:35 +0200 | [diff] [blame] | 562 | osmo_timer_del(&timer); |
Holger Hans Peter Freyther | 4556130 | 2013-10-16 17:55:57 +0200 | [diff] [blame] | 563 | } |
| 564 | } |
| 565 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 566 | int gprs_rlcmac_tbf::check_polling(uint32_t fn, uint8_t ts, |
| 567 | uint32_t *poll_fn_, unsigned int *rrbp_) |
| 568 | { |
Max | 9dabfa2 | 2017-05-16 16:10:45 +0200 | [diff] [blame] | 569 | uint32_t new_poll_fn = next_fn(fn, 13); |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 570 | |
| 571 | if (!is_control_ts(ts)) { |
| 572 | LOGP(DRLCMAC, LOGL_DEBUG, "Polling cannot be " |
| 573 | "scheduled in this TS %d (first control TS %d)\n", |
| 574 | ts, control_ts); |
| 575 | return -EINVAL; |
| 576 | } |
| 577 | if (poll_state != GPRS_RLCMAC_POLL_NONE) { |
| 578 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 579 | "Polling is already scheduled for %s\n", |
| 580 | name()); |
| 581 | return -EBUSY; |
| 582 | } |
Max | 9dabfa2 | 2017-05-16 16:10:45 +0200 | [diff] [blame] | 583 | if (bts->sba()->find(trx->trx_no, ts, next_fn(fn, 13))) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 584 | LOGP(DRLCMAC, LOGL_DEBUG, "%s: Polling is already scheduled " |
| 585 | "for single block allocation at FN %d TS %d ...\n", |
| 586 | name(), new_poll_fn, ts); |
| 587 | return -EBUSY; |
| 588 | } |
| 589 | |
| 590 | *poll_fn_ = new_poll_fn; |
| 591 | *rrbp_ = 0; |
| 592 | |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | void gprs_rlcmac_tbf::set_polling(uint32_t new_poll_fn, uint8_t ts) |
| 597 | { |
| 598 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 599 | "%s: Scheduling polling at FN %d TS %d\n", |
| 600 | name(), new_poll_fn, ts); |
| 601 | |
| 602 | /* schedule polling */ |
| 603 | poll_state = GPRS_RLCMAC_POLL_SCHED; |
| 604 | poll_fn = new_poll_fn; |
| 605 | poll_ts = ts; |
| 606 | } |
| 607 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 608 | void gprs_rlcmac_tbf::poll_timeout() |
| 609 | { |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame^] | 610 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
| 611 | |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 612 | LOGP(DRLCMAC, LOGL_NOTICE, "%s poll timeout for FN=%d, TS=%d (curr FN %d)\n", |
| 613 | tbf_name(this), poll_fn, poll_ts, bts->current_frame_number()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 614 | |
| 615 | poll_state = GPRS_RLCMAC_POLL_NONE; |
| 616 | |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame^] | 617 | if (ul_tbf && ul_tbf->handle_ctrl_ack()) { |
| 618 | if (!ul_tbf->ctrl_ack_to_toggle()) { |
| 619 | 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] | 620 | rlcmac_diag(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 621 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 622 | bts->rlc_ack_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 623 | bts->pkt_ul_ack_nack_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 624 | if (state_is(GPRS_RLCMAC_FINISHED)) { |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 625 | ul_tbf->m_n3103++; |
| 626 | 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] | 627 | LOGP(DRLCMAC, LOGL_NOTICE, |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame^] | 628 | "- N3103 exceeded\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 629 | bts->pkt_ul_ack_nack_poll_failed(); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 630 | ul_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 631 | tbf_timer_start(ul_tbf, 3169, ul_tbf->bts->bts_data()->t3169, 0); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 632 | return; |
| 633 | } |
| 634 | /* reschedule UL ack */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 635 | 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] | 636 | } |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 637 | |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 638 | } else if (ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
| 639 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS))) { |
| 640 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
Max | fd13f6c | 2017-07-07 14:29:36 +0200 | [diff] [blame^] | 641 | "PACKET CONTROL ACK for PACKET UPLINK " |
| 642 | "ASSIGNMENT.\n"); |
| 643 | rlcmac_diag(); |
| 644 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_UL_ASS); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 645 | } |
| 646 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 647 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 648 | bts->rlc_ass_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 649 | bts->pua_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 650 | if (n3105 == bts_data()->n3105) { |
| 651 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 652 | set_state(GPRS_RLCMAC_RELEASING); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 653 | tbf_timer_start(this, 3195, bts_data()->t3195, 0); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 654 | bts->rlc_ass_failed(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 655 | bts->pua_poll_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 656 | return; |
| 657 | } |
| 658 | /* reschedule UL assignment */ |
| 659 | ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS; |
| 660 | } else if (dl_ass_state == GPRS_RLCMAC_DL_ASS_WAIT_ACK) { |
| 661 | if (!(state_flags & (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS))) { |
| 662 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 663 | "PACKET CONTROL ACK for PACKET DOWNLINK " |
| 664 | "ASSIGNMENT.\n"); |
| 665 | rlcmac_diag(); |
| 666 | state_flags |= (1 << GPRS_RLCMAC_FLAG_TO_DL_ASS); |
| 667 | } |
| 668 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 669 | n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 670 | bts->rlc_ass_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 671 | bts->pda_poll_timedout(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 672 | if (n3105 == bts->bts_data()->n3105) { |
| 673 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 674 | set_state(GPRS_RLCMAC_RELEASING); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 675 | tbf_timer_start(this, 3195, bts_data()->t3195, 0); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 676 | bts->rlc_ass_failed(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 677 | bts->pda_poll_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 678 | return; |
| 679 | } |
| 680 | /* reschedule DL assignment */ |
| 681 | dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS; |
| 682 | } else if (direction == GPRS_RLCMAC_DL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 683 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 684 | |
| 685 | 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] | 686 | LOGP(DRLCMAC, LOGL_NOTICE, "- Timeout for polling " |
| 687 | "PACKET DOWNLINK ACK.\n"); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 688 | dl_tbf->rlcmac_diag(); |
| 689 | 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] | 690 | } |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 691 | dl_tbf->n3105++; |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 692 | if (dl_tbf->state_is(GPRS_RLCMAC_RELEASING)) |
| 693 | bts->rlc_rel_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 694 | else { |
Jacob Erlbeck | c91c18e | 2015-07-07 09:33:29 +0200 | [diff] [blame] | 695 | bts->rlc_ack_timedout(); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 696 | bts->pkt_dl_ack_nack_poll_timedout(); |
| 697 | } |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 698 | if (dl_tbf->n3105 == dl_tbf->bts->bts_data()->n3105) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 699 | LOGP(DRLCMAC, LOGL_NOTICE, "- N3105 exceeded\n"); |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 700 | dl_tbf->set_state(GPRS_RLCMAC_RELEASING); |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 701 | tbf_timer_start(dl_tbf, 3195, dl_tbf->bts_data()->t3195, 0); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 702 | bts->pkt_dl_ack_nack_poll_failed(); |
Jacob Erlbeck | 7c8d39a | 2015-09-07 14:04:56 +0200 | [diff] [blame] | 703 | bts->rlc_ack_failed(); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 704 | return; |
| 705 | } |
| 706 | /* resend IMM.ASS on CCCH on timeout */ |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 707 | if ((dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)) |
| 708 | && !(dl_tbf->state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) { |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 709 | LOGP(DRLCMAC, LOGL_DEBUG, "Re-send dowlink assignment " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 710 | "for %s on PCH (IMSI=%s)\n", |
Daniel Willmann | 6a16e0c | 2014-08-07 13:03:35 +0200 | [diff] [blame] | 711 | tbf_name(dl_tbf), |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 712 | imsi()); |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 713 | /* send immediate assignment */ |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 714 | dl_tbf->bts->snd_dl_ass(dl_tbf, 0, imsi()); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 715 | dl_tbf->m_wait_confirm = 1; |
Holger Hans Peter Freyther | d9262b3 | 2013-10-26 20:12:59 +0200 | [diff] [blame] | 716 | } |
| 717 | } else |
| 718 | LOGP(DRLCMAC, LOGL_ERROR, "- Poll Timeout, but no event!\n"); |
| 719 | } |
| 720 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 721 | static int setup_tbf(struct gprs_rlcmac_tbf *tbf, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 722 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 723 | 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] | 724 | { |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 725 | int rc; |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 726 | struct gprs_rlcmac_bts *bts; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 727 | if (!tbf) |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 728 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 729 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 730 | bts = tbf->bts->bts_data(); |
Daniel Willmann | 1b3864f | 2014-07-30 13:25:19 +0200 | [diff] [blame] | 731 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 732 | if (ms->mode() == GprsCodingScheme::EGPRS) |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 733 | ms_class = egprs_ms_class; |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 734 | |
Holger Hans Peter Freyther | a004799 | 2014-01-16 10:07:20 +0100 | [diff] [blame] | 735 | tbf->m_created_ts = time(NULL); |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 736 | tbf->set_ms_class(ms_class); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 737 | /* select algorithm */ |
Jacob Erlbeck | e2e004e | 2015-06-18 17:16:26 +0200 | [diff] [blame] | 738 | rc = bts->alloc_algorithm(bts, ms, tbf, bts->alloc_algorithm_curst, |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 739 | single_slot, use_trx); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 740 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 741 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 742 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 743 | } |
| 744 | /* assign control ts */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 745 | rc = tbf_assign_control_ts(tbf); |
Holger Hans Peter Freyther | 90b87ea | 2013-10-27 10:38:31 +0100 | [diff] [blame] | 746 | /* if no resource */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 747 | if (rc < 0) { |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 748 | return -1; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 749 | } |
| 750 | |
| 751 | /* set timestamp */ |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 752 | gettimeofday(&tbf->meas.rssi_tv, NULL); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 753 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 754 | tbf->set_ms(ms); |
| 755 | |
Jacob Erlbeck | 5879c64 | 2015-07-10 10:41:36 +0200 | [diff] [blame] | 756 | LOGP(DRLCMAC, LOGL_INFO, |
| 757 | "Allocated %s: trx = %d, ul_slots = %02x, dl_slots = %02x\n", |
| 758 | tbf->name(), tbf->trx->trx_no, tbf->ul_slots(), tbf->dl_slots()); |
| 759 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 760 | tbf->m_ctrs = rate_ctr_group_alloc(tbf, &tbf_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 761 | if (!tbf->m_ctrs) { |
| 762 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate TBF counters\n"); |
| 763 | return -1; |
| 764 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 765 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 766 | return 0; |
| 767 | } |
| 768 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 769 | gprs_rlcmac_ul_tbf::gprs_rlcmac_ul_tbf(BTS *bts_) : |
| 770 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_UL_TBF), |
| 771 | m_rx_counter(0), |
| 772 | m_n3103(0), |
| 773 | m_contention_resolution_done(0), |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 774 | m_final_ack_sent(0), |
| 775 | m_ul_gprs_ctrs(NULL), |
| 776 | m_ul_egprs_ctrs(NULL) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 777 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 778 | memset(&m_usf, 0, sizeof(m_usf)); |
| 779 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 780 | |
| 781 | static int ul_tbf_dtor(struct gprs_rlcmac_ul_tbf *tbf) |
| 782 | { |
| 783 | tbf->~gprs_rlcmac_ul_tbf(); |
| 784 | return 0; |
| 785 | } |
| 786 | |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 787 | static void setup_egprs_mode(gprs_rlcmac_bts *bts, GprsMs *ms) |
| 788 | { |
| 789 | if (GprsCodingScheme::getEgprsByNum(bts->max_mcs_ul).isEgprsGmsk() && |
| 790 | GprsCodingScheme::getEgprsByNum(bts->max_mcs_dl).isEgprsGmsk() && |
| 791 | ms->mode() != GprsCodingScheme::EGPRS) |
| 792 | { |
| 793 | ms->set_mode(GprsCodingScheme::EGPRS_GMSK); |
| 794 | } else { |
| 795 | ms->set_mode(GprsCodingScheme::EGPRS); |
| 796 | } |
| 797 | } |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 798 | |
| 799 | 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] | 800 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 801 | 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] | 802 | { |
| 803 | struct gprs_rlcmac_ul_tbf *tbf; |
| 804 | int rc; |
| 805 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 806 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
| 807 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 808 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 809 | bts->bts->tbf_failed_egprs_only(); |
| 810 | return NULL; |
| 811 | } |
| 812 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 813 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF starts here **********\n"); |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 814 | LOGP(DRLCMAC, LOGL_INFO, "Allocating %s TBF: MS_CLASS=%d/%d\n", |
| 815 | "UL", ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 816 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 817 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 818 | |
| 819 | if (!tbf) |
| 820 | return NULL; |
| 821 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 822 | talloc_set_destructor(tbf, ul_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 823 | new (tbf) gprs_rlcmac_ul_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 824 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 825 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 826 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 827 | |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 828 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 829 | tbf->enable_egprs(); |
Jacob Erlbeck | 8e323b3 | 2015-12-28 14:07:21 +0100 | [diff] [blame] | 830 | tbf->m_window.set_sns(RLC_EGPRS_SNS); |
Jacob Erlbeck | cb72890 | 2016-01-05 15:33:03 +0100 | [diff] [blame] | 831 | setup_egprs_mode(bts, ms); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 832 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 833 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
Jacob Erlbeck | 869449c | 2015-12-28 14:01:50 +0100 | [diff] [blame] | 834 | } |
| 835 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 836 | 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] | 837 | |
| 838 | if (tbf->is_egprs_enabled()) |
| 839 | tbf->egprs_calc_ulwindow_size(); |
| 840 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 841 | /* if no resource */ |
| 842 | if (rc < 0) { |
| 843 | talloc_free(tbf); |
| 844 | return NULL; |
Holger Hans Peter Freyther | 1587764 | 2013-10-27 09:50:15 +0100 | [diff] [blame] | 845 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 846 | |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 847 | tbf->m_ul_egprs_ctrs = rate_ctr_group_alloc(tbf, &tbf_ul_egprs_ctrg_desc, 0); |
| 848 | 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] | 849 | if (!tbf->m_ul_egprs_ctrs || !tbf->m_ul_gprs_ctrs) { |
| 850 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate TBF UL counters\n"); |
| 851 | talloc_free(tbf); |
| 852 | return NULL; |
| 853 | } |
sivasankari | da7250a | 2016-12-16 12:57:18 +0530 | [diff] [blame] | 854 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 855 | llist_add(&tbf->list(), &bts->bts->ul_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 856 | tbf->bts->tbf_ul_created(); |
| 857 | |
| 858 | return tbf; |
| 859 | } |
| 860 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 861 | gprs_rlcmac_dl_tbf::BandWidth::BandWidth() : |
| 862 | dl_bw_octets(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 863 | dl_throughput(0), |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 864 | dl_loss_lost(0), |
Neels Hofmeyr | d34646a | 2017-02-08 17:07:40 +0100 | [diff] [blame] | 865 | dl_loss_received(0) |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 866 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 867 | timerclear(&dl_bw_tv); |
| 868 | timerclear(&dl_loss_tv); |
| 869 | } |
| 870 | |
| 871 | gprs_rlcmac_dl_tbf::gprs_rlcmac_dl_tbf(BTS *bts_) : |
| 872 | gprs_rlcmac_tbf(bts_, GPRS_RLCMAC_DL_TBF), |
| 873 | m_tx_counter(0), |
| 874 | m_wait_confirm(0), |
| 875 | m_dl_ack_requested(false), |
| 876 | m_last_dl_poll_fn(0), |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 877 | m_last_dl_drained_fn(0), |
| 878 | m_dl_gprs_ctrs(NULL), |
| 879 | m_dl_egprs_ctrs(NULL) |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 880 | { |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 881 | memset(&m_llc_timer, 0, sizeof(m_llc_timer)); |
| 882 | } |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 883 | |
| 884 | static int dl_tbf_dtor(struct gprs_rlcmac_dl_tbf *tbf) |
| 885 | { |
| 886 | tbf->~gprs_rlcmac_dl_tbf(); |
| 887 | return 0; |
| 888 | } |
| 889 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 890 | 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] | 891 | GprsMs *ms, int8_t use_trx, |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 892 | 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] | 893 | { |
| 894 | struct gprs_rlcmac_dl_tbf *tbf; |
| 895 | int rc; |
| 896 | |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 897 | if (egprs_ms_class == 0 && bts->egprs_enabled) { |
Jacob Erlbeck | 3b1c553 | 2016-01-20 12:30:46 +0100 | [diff] [blame] | 898 | if (ms_class > 0) { |
| 899 | LOGP(DRLCMAC, LOGL_NOTICE, |
| 900 | "Not accepting non-EGPRS phone in EGPRS-only mode\n"); |
| 901 | bts->bts->tbf_failed_egprs_only(); |
| 902 | return NULL; |
| 903 | } |
| 904 | egprs_ms_class = 1; |
Jacob Erlbeck | 9b3d7e0 | 2016-01-19 10:44:42 +0100 | [diff] [blame] | 905 | } |
| 906 | |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 907 | LOGP(DRLCMAC, LOGL_DEBUG, "********** TBF starts here **********\n"); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 908 | LOGP(DRLCMAC, LOGL_INFO, "Allocating %s TBF: MS_CLASS=%d/%d\n", |
| 909 | "DL", ms_class, egprs_ms_class); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 910 | |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 911 | tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_dl_tbf); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 912 | |
| 913 | if (!tbf) |
| 914 | return NULL; |
| 915 | |
Jacob Erlbeck | 444bc82 | 2015-08-20 17:49:03 +0200 | [diff] [blame] | 916 | talloc_set_destructor(tbf, dl_tbf_dtor); |
Jacob Erlbeck | b6b3c7e | 2015-08-28 12:07:14 +0200 | [diff] [blame] | 917 | new (tbf) gprs_rlcmac_dl_tbf(bts->bts); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 918 | |
Jacob Erlbeck | cb1b494 | 2015-06-19 10:59:58 +0200 | [diff] [blame] | 919 | if (!ms) |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 920 | ms = bts->bts->ms_alloc(ms_class, egprs_ms_class); |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 921 | |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 922 | if (egprs_ms_class > 0 && bts->egprs_enabled) { |
| 923 | tbf->enable_egprs(); |
| 924 | tbf->m_window.set_sns(RLC_EGPRS_SNS); |
Jacob Erlbeck | 08f631c | 2016-01-07 16:15:58 +0100 | [diff] [blame] | 925 | setup_egprs_mode(bts, ms); |
| 926 | LOGP(DRLCMAC, LOGL_INFO, "Enabled EGPRS for %s, mode %s\n", |
| 927 | tbf->name(), GprsCodingScheme::modeName(ms->mode())); |
| 928 | } |
| 929 | |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 930 | rc = setup_tbf(tbf, ms, use_trx, ms_class, 0, single_slot); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 931 | /* if no resource */ |
| 932 | if (rc < 0) { |
| 933 | talloc_free(tbf); |
| 934 | return NULL; |
| 935 | } |
| 936 | |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 937 | if (tbf->is_egprs_enabled()) { |
Aravind Sirsikar | 8e70bb5 | 2016-09-15 17:51:16 +0530 | [diff] [blame] | 938 | tbf->egprs_calc_window_size(); |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 939 | 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] | 940 | if (!tbf->m_dl_egprs_ctrs) { |
| 941 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate EGPRS DL counters\n"); |
| 942 | talloc_free(tbf); |
| 943 | return NULL; |
| 944 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 945 | } else { |
| 946 | 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] | 947 | if (!tbf->m_dl_gprs_ctrs) { |
| 948 | LOGP(DRLCMAC, LOGL_ERROR, "Couldn't allocate GPRS DL counters\n"); |
| 949 | talloc_free(tbf); |
| 950 | return NULL; |
| 951 | } |
sivasankari | 5395073 | 2016-12-08 17:15:17 +0530 | [diff] [blame] | 952 | } |
Jacob Erlbeck | 36df774 | 2016-01-19 15:53:30 +0100 | [diff] [blame] | 953 | |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 954 | llist_add(&tbf->list(), &bts->bts->dl_tbfs()); |
Daniel Willmann | 48aa0b0 | 2014-07-16 18:54:10 +0200 | [diff] [blame] | 955 | tbf->bts->tbf_dl_created(); |
| 956 | |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 957 | tbf->m_last_dl_poll_fn = -1; |
Jacob Erlbeck | 3bed5d1 | 2015-03-19 11:22:38 +0100 | [diff] [blame] | 958 | tbf->m_last_dl_drained_fn = -1; |
Jacob Erlbeck | 005ee7f | 2015-03-20 14:53:54 +0100 | [diff] [blame] | 959 | |
Daniel Willmann | 418a423 | 2014-08-08 11:21:04 +0200 | [diff] [blame] | 960 | gettimeofday(&tbf->m_bw.dl_bw_tv, NULL); |
| 961 | gettimeofday(&tbf->m_bw.dl_loss_tv, NULL); |
| 962 | |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 963 | return tbf; |
| 964 | } |
| 965 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 966 | static void tbf_timer_cb(void *_tbf) |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 967 | { |
| 968 | struct gprs_rlcmac_tbf *tbf = (struct gprs_rlcmac_tbf *)_tbf; |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 969 | tbf->handle_timeout(); |
| 970 | } |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 971 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 972 | void gprs_rlcmac_tbf::handle_timeout() |
| 973 | { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 974 | LOGP(DRLCMAC, LOGL_DEBUG, "%s timer %u expired.\n", |
| 975 | tbf_name(this), T); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 976 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 977 | num_T_exp++; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 978 | |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 979 | switch (T) { |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 980 | case 0: /* assignment */ |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 981 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) { |
| 982 | if (state_is(GPRS_RLCMAC_ASSIGN)) { |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 983 | LOGP(DRLCMAC, LOGL_NOTICE, "%s releasing due to " |
| 984 | "PACCH assignment timeout.\n", tbf_name(this)); |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 985 | tbf_free(this); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 986 | return; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 987 | } else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 988 | LOGP(DRLCMAC, LOGL_ERROR, "Error: %s is not " |
| 989 | "in assign state\n", tbf_name(this)); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 990 | } |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 991 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 992 | gprs_rlcmac_dl_tbf *dl_tbf = as_dl_tbf(this); |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 993 | dl_tbf->m_wait_confirm = 0; |
Neels Hofmeyr | 4ea4526 | 2016-06-08 15:27:40 +0200 | [diff] [blame] | 994 | if (dl_tbf->state_is(GPRS_RLCMAC_ASSIGN)) { |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 995 | tbf_assign_control_ts(dl_tbf); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 996 | |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 997 | if (!dl_tbf->upgrade_to_multislot) { |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 998 | /* change state to FLOW, so scheduler |
| 999 | * will start transmission */ |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 1000 | dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 1001 | break; |
| 1002 | } |
| 1003 | |
| 1004 | /* This tbf can be upgraded to use multiple DL |
| 1005 | * timeslots and now that there is already one |
| 1006 | * slot assigned send another DL assignment via |
| 1007 | * PDCH. */ |
| 1008 | |
| 1009 | /* keep to flags */ |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 1010 | dl_tbf->state_flags &= GPRS_RLCMAC_FLAG_TO_MASK; |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 1011 | |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 1012 | dl_tbf->update(); |
Daniel Willmann | cf1fae7 | 2014-05-30 17:58:01 +0200 | [diff] [blame] | 1013 | |
Jacob Erlbeck | 71e5511 | 2015-05-21 11:10:15 +0200 | [diff] [blame] | 1014 | dl_tbf->bts->trigger_dl_ass(dl_tbf, dl_tbf); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1015 | } else |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1016 | LOGP(DRLCMAC, LOGL_NOTICE, "%s Continue flow after " |
Daniel Willmann | 532a4b5 | 2014-08-07 12:39:26 +0200 | [diff] [blame] | 1017 | "IMM.ASS confirm\n", tbf_name(dl_tbf)); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1018 | } |
| 1019 | break; |
| 1020 | case 3169: |
| 1021 | case 3191: |
| 1022 | case 3195: |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1023 | LOGP(DRLCMAC, LOGL_NOTICE, "%s T%d timeout during " |
| 1024 | "transsmission\n", tbf_name(this), T); |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 1025 | rlcmac_diag(); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1026 | /* fall through */ |
| 1027 | case 3193: |
Holger Hans Peter Freyther | 8d0e489 | 2013-10-27 12:42:58 +0100 | [diff] [blame] | 1028 | LOGP(DRLCMAC, LOGL_DEBUG, |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1029 | "%s will be freed due to timeout\n", tbf_name(this)); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1030 | /* free TBF */ |
Holger Hans Peter Freyther | af8094d | 2013-10-26 17:56:15 +0200 | [diff] [blame] | 1031 | tbf_free(this); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1032 | return; |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1033 | break; |
| 1034 | default: |
Holger Hans Peter Freyther | 8d0e489 | 2013-10-27 12:42:58 +0100 | [diff] [blame] | 1035 | LOGP(DRLCMAC, LOGL_ERROR, |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1036 | "%s timer expired in unknown mode: %u\n", tbf_name(this), T); |
Holger Hans Peter Freyther | 7380bab | 2013-10-16 18:09:19 +0200 | [diff] [blame] | 1037 | } |
| 1038 | } |
| 1039 | |
| 1040 | int gprs_rlcmac_tbf::rlcmac_diag() |
| 1041 | { |
| 1042 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) |
| 1043 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on CCCH\n"); |
| 1044 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_PACCH))) |
| 1045 | LOGP(DRLCMAC, LOGL_NOTICE, "- Assignment was on PACCH\n"); |
| 1046 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_UL_DATA))) |
| 1047 | LOGP(DRLCMAC, LOGL_NOTICE, "- Uplink data was received\n"); |
| 1048 | else if (direction == GPRS_RLCMAC_UL_TBF) |
| 1049 | LOGP(DRLCMAC, LOGL_NOTICE, "- No uplink data received yet\n"); |
| 1050 | if ((state_flags & (1 << GPRS_RLCMAC_FLAG_DL_ACK))) |
| 1051 | LOGP(DRLCMAC, LOGL_NOTICE, "- Downlink ACK was received\n"); |
| 1052 | else if (direction == GPRS_RLCMAC_DL_TBF) |
| 1053 | LOGP(DRLCMAC, LOGL_NOTICE, "- No downlink ACK received yet\n"); |
| 1054 | |
| 1055 | return 0; |
| 1056 | } |
| 1057 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1058 | 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] | 1059 | { |
| 1060 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1061 | struct gprs_rlcmac_dl_tbf *new_dl_tbf = NULL; |
Holger Hans Peter Freyther | 9977e15 | 2013-11-24 22:52:10 +0100 | [diff] [blame] | 1062 | int poll_ass_dl = 1; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1063 | unsigned int rrbp = 0; |
| 1064 | uint32_t new_poll_fn = 0; |
| 1065 | int rc; |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 1066 | bool old_tfi_is_valid = is_tfi_assigned(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1067 | |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1068 | if (direction == GPRS_RLCMAC_DL_TBF && !is_control_ts(ts)) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1069 | LOGP(DRLCMAC, LOGL_NOTICE, "Cannot poll for downlink " |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1070 | "assigment, because MS cannot reply. (TS=%d, " |
| 1071 | "first common TS=%d)\n", ts, |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1072 | first_common_ts); |
| 1073 | poll_ass_dl = 0; |
| 1074 | } |
| 1075 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1076 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1077 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) |
| 1078 | { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1079 | LOGP(DRLCMACUL, LOGL_DEBUG, "Polling is already " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1080 | "scheduled for %s, so we must wait for the uplink " |
| 1081 | "assignment...\n", tbf_name(this)); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1082 | return NULL; |
| 1083 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1084 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1085 | if (rc < 0) |
| 1086 | return NULL; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | /* on uplink TBF we get the downlink TBF to be assigned. */ |
| 1090 | if (direction == GPRS_RLCMAC_UL_TBF) { |
Jacob Erlbeck | aa9daa1 | 2015-12-28 18:49:12 +0100 | [diff] [blame] | 1091 | gprs_rlcmac_ul_tbf *ul_tbf = as_ul_tbf(this); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1092 | |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1093 | /* be sure to check first, if contention resolution is done, |
| 1094 | * otherwise we cannot send the assignment yet */ |
Daniel Willmann | 7e994e3 | 2014-08-07 15:49:21 +0200 | [diff] [blame] | 1095 | if (!ul_tbf->m_contention_resolution_done) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1096 | LOGP(DRLCMAC, LOGL_DEBUG, "Cannot assign DL TBF now, " |
| 1097 | "because contention resolution is not " |
| 1098 | "finished.\n"); |
| 1099 | return NULL; |
| 1100 | } |
Daniel Willmann | e481815 | 2014-08-15 16:52:09 +0200 | [diff] [blame] | 1101 | } |
| 1102 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1103 | if (ms()) |
| 1104 | new_dl_tbf = ms()->dl_tbf(); |
| 1105 | |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1106 | if (!new_dl_tbf) { |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1107 | LOGP(DRLCMACDL, LOGL_ERROR, "We have a schedule for downlink " |
Jacob Erlbeck | 537b149 | 2015-08-21 17:52:07 +0200 | [diff] [blame] | 1108 | "assignment at %s, but there is no downlink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1109 | "TBF\n", tbf_name(this)); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1110 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 1111 | return NULL; |
| 1112 | } |
| 1113 | |
Jacob Erlbeck | 6b356a5 | 2016-01-29 16:39:21 +0100 | [diff] [blame] | 1114 | if (new_dl_tbf == as_dl_tbf(this)) |
| 1115 | LOGP(DRLCMAC, LOGL_DEBUG, |
| 1116 | "New and old TBF are the same %s\n", name()); |
| 1117 | |
| 1118 | if (old_tfi_is_valid && !new_dl_tbf->is_tlli_valid()) { |
| 1119 | LOGP(DRLCMACDL, LOGL_ERROR, |
| 1120 | "The old TFI is not assigned and there is no " |
| 1121 | "TLLI. Old TBF %s, new TBF %s\n", |
| 1122 | name(), new_dl_tbf->name()); |
| 1123 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
| 1124 | return NULL; |
| 1125 | } |
| 1126 | |
Holger Hans Peter Freyther | f5c9747 | 2014-12-26 18:32:00 +0100 | [diff] [blame] | 1127 | new_dl_tbf->was_releasing = was_releasing; |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1128 | msg = msgb_alloc(23, "rlcmac_dl_ass"); |
| 1129 | if (!msg) |
| 1130 | return NULL; |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1131 | bitvec *ass_vec = bitvec_alloc(23, tall_pcu_ctx); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1132 | if (!ass_vec) { |
| 1133 | msgb_free(msg); |
| 1134 | return NULL; |
| 1135 | } |
| 1136 | bitvec_unhex(ass_vec, |
| 1137 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1138 | LOGP(DRLCMAC, LOGL_INFO, "%s start Packet Downlink Assignment (PACCH)\n", tbf_name(new_dl_tbf)); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1139 | 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] | 1140 | Encoding::write_packet_downlink_assignment(mac_control_block, |
| 1141 | old_tfi_is_valid, m_tfi, (direction == GPRS_RLCMAC_DL_TBF), |
| 1142 | new_dl_tbf, poll_ass_dl, rrbp, |
| 1143 | bts_data()->alpha, bts_data()->gamma, -1, 0, |
Jacob Erlbeck | 166c9fc | 2016-01-07 16:04:29 +0100 | [diff] [blame] | 1144 | is_egprs_enabled()); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1145 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++\n"); |
| 1146 | encode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 1147 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 1148 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Downlink Assignment -------------------------\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 1149 | bts->pkt_dl_assignemnt(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1150 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1151 | bitvec_free(ass_vec); |
| 1152 | talloc_free(mac_control_block); |
| 1153 | |
| 1154 | if (poll_ass_dl) { |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1155 | set_polling(new_poll_fn, ts); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1156 | dl_ass_state = GPRS_RLCMAC_DL_ASS_WAIT_ACK; |
Jacob Erlbeck | 16d29c7 | 2015-08-24 13:30:39 +0200 | [diff] [blame] | 1157 | LOGP(DRLCMACDL, LOGL_INFO, |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 1158 | "%s Scheduled DL Assignment polling on FN=%d, TS=%d\n", |
| 1159 | name(), poll_fn, poll_ts); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1160 | } else { |
| 1161 | dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; |
Daniel Willmann | eb10024 | 2014-08-08 11:43:53 +0200 | [diff] [blame] | 1162 | new_dl_tbf->set_state(GPRS_RLCMAC_FLOW); |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1163 | tbf_assign_control_ts(new_dl_tbf); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1164 | /* stop pending assignment timer */ |
Daniel Willmann | b2886f1 | 2014-08-07 14:48:20 +0200 | [diff] [blame] | 1165 | new_dl_tbf->stop_timer(); |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1166 | |
| 1167 | } |
Holger Hans Peter Freyther | 2db7e7e | 2013-10-26 20:45:35 +0200 | [diff] [blame] | 1168 | |
| 1169 | return msg; |
| 1170 | } |
| 1171 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1172 | struct msgb *gprs_rlcmac_tbf::create_packet_access_reject() |
| 1173 | { |
| 1174 | struct msgb *msg; |
| 1175 | |
| 1176 | msg = msgb_alloc(23, "rlcmac_ul_ass_rej"); |
| 1177 | |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1178 | bitvec *packet_access_rej = bitvec_alloc(23, tall_pcu_ctx); |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1179 | |
| 1180 | bitvec_unhex(packet_access_rej, |
| 1181 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
| 1182 | |
| 1183 | Encoding::write_packet_access_reject( |
| 1184 | packet_access_rej, tlli()); |
| 1185 | |
sivasankari | 168911b | 2016-11-25 19:53:36 +0530 | [diff] [blame] | 1186 | bts->pkt_access_reject(); |
| 1187 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1188 | bitvec_pack(packet_access_rej, msgb_put(msg, 23)); |
| 1189 | |
| 1190 | bitvec_free(packet_access_rej); |
| 1191 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1192 | |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1193 | /* Start Tmr only if it is UL TBF */ |
| 1194 | if (direction == GPRS_RLCMAC_UL_TBF) |
| 1195 | tbf_timer_start(this, 0, Treject_pacch); |
| 1196 | |
aravind sirsikar | ed3413e | 2016-11-11 17:15:10 +0530 | [diff] [blame] | 1197 | return msg; |
| 1198 | |
| 1199 | } |
| 1200 | |
Jacob Erlbeck | 5a3c84d | 2016-01-22 17:25:38 +0100 | [diff] [blame] | 1201 | 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] | 1202 | { |
| 1203 | struct msgb *msg; |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1204 | struct gprs_rlcmac_ul_tbf *new_tbf = NULL; |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1205 | int rc; |
| 1206 | unsigned int rrbp; |
| 1207 | uint32_t new_poll_fn; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1208 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1209 | if (poll_state == GPRS_RLCMAC_POLL_SCHED && |
| 1210 | ul_ass_state == GPRS_RLCMAC_UL_ASS_WAIT_ACK) { |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1211 | LOGP(DRLCMACUL, LOGL_DEBUG, "Polling is already " |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1212 | "scheduled for %s, so we must wait for the uplink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1213 | "assignment...\n", tbf_name(this)); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1214 | return NULL; |
| 1215 | } |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1216 | |
| 1217 | rc = check_polling(fn, ts, &new_poll_fn, &rrbp); |
| 1218 | if (rc < 0) |
| 1219 | return NULL; |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1220 | |
Jacob Erlbeck | d3eac28 | 2015-05-22 15:47:55 +0200 | [diff] [blame] | 1221 | if (ms()) |
| 1222 | new_tbf = ms()->ul_tbf(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1223 | if (!new_tbf) { |
| 1224 | LOGP(DRLCMACUL, LOGL_ERROR, "We have a schedule for uplink " |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1225 | "assignment at downlink %s, but there is no uplink " |
| 1226 | "TBF\n", tbf_name(this)); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1227 | ul_ass_state = GPRS_RLCMAC_UL_ASS_NONE; |
| 1228 | return NULL; |
| 1229 | } |
| 1230 | |
| 1231 | msg = msgb_alloc(23, "rlcmac_ul_ass"); |
| 1232 | if (!msg) |
| 1233 | return NULL; |
Holger Hans Peter Freyther | 474685e | 2013-10-27 17:01:14 +0100 | [diff] [blame] | 1234 | LOGP(DRLCMAC, LOGL_INFO, "%ss start Packet Uplink Assignment (PACCH)\n", tbf_name(new_tbf)); |
Alexander Couzens | ccde5c9 | 2017-02-04 03:10:08 +0100 | [diff] [blame] | 1235 | bitvec *ass_vec = bitvec_alloc(23, tall_pcu_ctx); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1236 | if (!ass_vec) { |
| 1237 | msgb_free(msg); |
| 1238 | return NULL; |
| 1239 | } |
| 1240 | bitvec_unhex(ass_vec, |
| 1241 | "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
Holger Hans Peter Freyther | 34f6e5e | 2013-10-27 20:31:47 +0100 | [diff] [blame] | 1242 | Encoding::write_packet_uplink_assignment(bts_data(), ass_vec, m_tfi, |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1243 | (direction == GPRS_RLCMAC_DL_TBF), tlli(), |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1244 | is_tlli_valid(), new_tbf, 1, rrbp, bts_data()->alpha, |
Jacob Erlbeck | 5265f59 | 2015-09-28 18:54:32 +0200 | [diff] [blame] | 1245 | bts_data()->gamma, -1, is_egprs_enabled()); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1246 | bitvec_pack(ass_vec, msgb_put(msg, 23)); |
| 1247 | RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)talloc_zero(tall_pcu_ctx, RlcMacDownlink_t); |
| 1248 | LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++\n"); |
| 1249 | decode_gsm_rlcmac_downlink(ass_vec, mac_control_block); |
| 1250 | LOGPC(DCSN1, LOGL_NOTICE, "\n"); |
| 1251 | LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Uplink Assignment -------------------------\n"); |
Mrinal Mishra | f86307e | 2016-11-10 18:16:30 +0530 | [diff] [blame] | 1252 | bts->pkt_ul_assignment(); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1253 | bitvec_free(ass_vec); |
| 1254 | talloc_free(mac_control_block); |
| 1255 | |
Jacob Erlbeck | f2694b7 | 2016-01-26 21:46:26 +0100 | [diff] [blame] | 1256 | set_polling(new_poll_fn, ts); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1257 | ul_ass_state = GPRS_RLCMAC_UL_ASS_WAIT_ACK; |
Jacob Erlbeck | 16d29c7 | 2015-08-24 13:30:39 +0200 | [diff] [blame] | 1258 | LOGP(DRLCMACDL, LOGL_INFO, |
Jacob Erlbeck | 8eb1714 | 2016-01-22 17:58:17 +0100 | [diff] [blame] | 1259 | "%s Scheduled UL Assignment polling on FN=%d, TS=%d\n", |
| 1260 | name(), poll_fn, poll_ts); |
Holger Hans Peter Freyther | ae03f22 | 2013-10-26 21:20:51 +0200 | [diff] [blame] | 1261 | |
| 1262 | return msg; |
| 1263 | } |
| 1264 | |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1265 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_trx *trx) |
| 1266 | { |
Jacob Erlbeck | 3a10dbd | 2015-07-10 19:52:37 +0200 | [diff] [blame] | 1267 | for (uint8_t ts = 0; ts < 8; ts++) |
| 1268 | free_all(&trx->pdch[ts]); |
Holger Hans Peter Freyther | 964ddb6 | 2013-10-16 17:53:23 +0200 | [diff] [blame] | 1269 | } |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1270 | |
| 1271 | void gprs_rlcmac_tbf::free_all(struct gprs_rlcmac_pdch *pdch) |
| 1272 | { |
| 1273 | for (uint8_t tfi = 0; tfi < 32; tfi++) { |
| 1274 | struct gprs_rlcmac_tbf *tbf; |
| 1275 | |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1276 | tbf = pdch->ul_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1277 | if (tbf) |
| 1278 | tbf_free(tbf); |
Daniel Willmann | 17a1d5e | 2014-05-30 20:21:30 +0200 | [diff] [blame] | 1279 | tbf = pdch->dl_tbf_by_tfi(tfi); |
Holger Hans Peter Freyther | 4f6a4e5d | 2013-10-16 17:58:46 +0200 | [diff] [blame] | 1280 | if (tbf) |
| 1281 | tbf_free(tbf); |
| 1282 | } |
| 1283 | } |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1284 | |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1285 | int gprs_rlcmac_tbf::establish_dl_tbf_on_pacch() |
| 1286 | { |
| 1287 | struct gprs_rlcmac_dl_tbf *new_tbf = NULL; |
| 1288 | |
| 1289 | bts->tbf_reused(); |
| 1290 | |
| 1291 | new_tbf = tbf_alloc_dl_tbf(bts->bts_data(), ms(), |
Jacob Erlbeck | 86b6f05 | 2015-11-27 15:17:34 +0100 | [diff] [blame] | 1292 | this->trx->trx_no, ms_class(), |
| 1293 | ms() ? ms()->egprs_ms_class() : 0, 0); |
Jacob Erlbeck | 91ff7d1 | 2015-09-01 11:20:29 +0200 | [diff] [blame] | 1294 | |
| 1295 | if (!new_tbf) { |
| 1296 | LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n"); |
| 1297 | return -1; |
| 1298 | } |
| 1299 | |
| 1300 | LOGP(DRLCMAC, LOGL_DEBUG, "%s Trigger downlink assignment on PACCH\n", |
| 1301 | tbf_name(this)); |
| 1302 | bts->trigger_dl_ass(new_tbf, this); |
| 1303 | |
| 1304 | return 0; |
| 1305 | } |
| 1306 | |
Jacob Erlbeck | e8f5fe5 | 2015-12-14 13:23:15 +0100 | [diff] [blame] | 1307 | 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] | 1308 | { |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1309 | struct gprs_rlcmac_tbf *dl_tbf = NULL; |
| 1310 | struct gprs_rlcmac_tbf *ul_tbf = NULL; |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1311 | GprsMs *old_ms; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1312 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1313 | OSMO_ASSERT(direction == GPRS_RLCMAC_UL_TBF); |
| 1314 | |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1315 | old_ms = bts->ms_by_tlli(new_tlli); |
Jacob Erlbeck | 9659d59 | 2015-09-01 11:06:14 +0200 | [diff] [blame] | 1316 | /* Keep the old MS object for the update_ms() */ |
| 1317 | GprsMs::Guard guard(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1318 | if (old_ms) { |
| 1319 | /* Get them before calling set_ms() */ |
| 1320 | dl_tbf = old_ms->dl_tbf(); |
| 1321 | ul_tbf = old_ms->ul_tbf(); |
| 1322 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1323 | if (!ms()) |
| 1324 | set_ms(old_ms); |
Jacob Erlbeck | e43460b | 2015-05-13 13:33:12 +0200 | [diff] [blame] | 1325 | } |
| 1326 | |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1327 | if (dl_tbf && dl_tbf->ms() != ms()) { |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1328 | LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from " |
| 1329 | "TLLI=0x%08x while %s still exists. " |
Alexander Couzens | 333d7e6 | 2017-01-17 14:30:34 +0100 | [diff] [blame] | 1330 | "Killing pending DL TBF\n", new_tlli, |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1331 | tbf_name(dl_tbf)); |
| 1332 | tbf_free(dl_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1333 | dl_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1334 | } |
Jacob Erlbeck | 6d86628 | 2015-06-19 09:08:23 +0200 | [diff] [blame] | 1335 | if (ul_tbf && ul_tbf->ms() != ms()) { |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1336 | LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from " |
| 1337 | "TLLI=0x%08x while %s still exists. " |
Alexander Couzens | 333d7e6 | 2017-01-17 14:30:34 +0100 | [diff] [blame] | 1338 | "Killing pending UL TBF\n", new_tlli, |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1339 | tbf_name(ul_tbf)); |
| 1340 | tbf_free(ul_tbf); |
Holger Hans Peter Freyther | 3d0cc2f | 2014-01-16 10:09:42 +0100 | [diff] [blame] | 1341 | ul_tbf = NULL; |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1342 | } |
Jacob Erlbeck | 5f93f85 | 2016-01-21 20:48:39 +0100 | [diff] [blame] | 1343 | |
| 1344 | /* The TLLI has been taken from an UL message */ |
| 1345 | update_ms(new_tlli, GPRS_RLCMAC_UL_TBF); |
| 1346 | |
| 1347 | #if 0 /* REMOVEME ??? */ |
| 1348 | if (ms()->need_dl_tbf()) |
| 1349 | establish_dl_tbf_on_pacch(); |
| 1350 | #endif |
Holger Hans Peter Freyther | 4c06d91 | 2013-11-25 23:05:26 +0100 | [diff] [blame] | 1351 | return 1; |
| 1352 | } |
| 1353 | |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1354 | const char *tbf_name(gprs_rlcmac_tbf *tbf) |
| 1355 | { |
Alexander Couzens | e04fd0c | 2016-05-31 13:18:01 +0200 | [diff] [blame] | 1356 | return tbf ? tbf->name() : "(no TBF)"; |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1357 | } |
| 1358 | |
| 1359 | const char *gprs_rlcmac_tbf::name() const |
| 1360 | { |
| 1361 | snprintf(m_name_buf, sizeof(m_name_buf) - 1, |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1362 | "TBF(TFI=%d TLLI=0x%08x DIR=%s STATE=%s%s)", |
Jacob Erlbeck | 767193e | 2015-05-20 12:06:46 +0200 | [diff] [blame] | 1363 | m_tfi, tlli(), |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1364 | direction == GPRS_RLCMAC_UL_TBF ? "UL" : "DL", |
Jacob Erlbeck | 5643f35 | 2015-11-27 16:17:40 +0100 | [diff] [blame] | 1365 | state_name(), |
| 1366 | is_egprs_enabled() ? " EGPRS" : "" |
Jacob Erlbeck | adcdf15 | 2015-03-03 14:45:55 +0100 | [diff] [blame] | 1367 | ); |
| 1368 | m_name_buf[sizeof(m_name_buf) - 1] = '\0'; |
| 1369 | return m_name_buf; |
Holger Hans Peter Freyther | bd449f5 | 2013-10-27 16:39:36 +0100 | [diff] [blame] | 1370 | } |
Holger Hans Peter Freyther | 758dc12 | 2013-11-06 20:39:45 +0100 | [diff] [blame] | 1371 | |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1372 | void gprs_rlcmac_tbf::rotate_in_list() |
| 1373 | { |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1374 | llist_del(&list()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1375 | if (direction == GPRS_RLCMAC_UL_TBF) |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1376 | llist_add(&list(), &bts->ul_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1377 | else |
Jacob Erlbeck | ed2dbf6 | 2015-12-28 19:15:40 +0100 | [diff] [blame] | 1378 | llist_add(&list(), &bts->dl_tbfs()); |
Holger Hans Peter Freyther | 7a5f3c2 | 2013-11-26 13:08:12 +0100 | [diff] [blame] | 1379 | } |
Holger Hans Peter Freyther | 8f399de | 2013-12-25 20:22:35 +0100 | [diff] [blame] | 1380 | |
| 1381 | uint8_t gprs_rlcmac_tbf::tsc() const |
| 1382 | { |
| 1383 | return trx->pdch[first_ts].tsc; |
| 1384 | } |
Daniel Willmann | afa72f5 | 2014-01-15 17:06:19 +0100 | [diff] [blame] | 1385 | |
Jacob Erlbeck | 617c712 | 2015-06-30 09:18:30 +0200 | [diff] [blame] | 1386 | uint8_t gprs_rlcmac_tbf::dl_slots() const |
| 1387 | { |
| 1388 | uint8_t slots = 0; |
| 1389 | size_t i; |
| 1390 | |
| 1391 | if (direction == GPRS_RLCMAC_UL_TBF) |
| 1392 | return 0; |
| 1393 | |
| 1394 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1395 | if (pdch[i]) |
| 1396 | slots |= 1 << i; |
| 1397 | |
| 1398 | return slots; |
| 1399 | } |
| 1400 | |
| 1401 | uint8_t gprs_rlcmac_tbf::ul_slots() const |
| 1402 | { |
| 1403 | uint8_t slots = 0; |
| 1404 | size_t i; |
| 1405 | |
| 1406 | if (direction == GPRS_RLCMAC_DL_TBF) { |
| 1407 | if (control_ts < 8) |
| 1408 | slots |= 1 << control_ts; |
| 1409 | if (first_common_ts < 8) |
| 1410 | slots |= 1 << first_common_ts; |
| 1411 | |
| 1412 | return slots; |
| 1413 | } |
| 1414 | |
| 1415 | for (i = 0; i < ARRAY_SIZE(pdch); i += 1) |
| 1416 | if (pdch[i]) |
| 1417 | slots |= 1 << i; |
| 1418 | |
| 1419 | return slots; |
| 1420 | } |
Jacob Erlbeck | 646da1b | 2016-01-22 17:41:33 +0100 | [diff] [blame] | 1421 | |
| 1422 | bool gprs_rlcmac_tbf::is_control_ts(uint8_t ts) const |
| 1423 | { |
| 1424 | return ts == control_ts; |
| 1425 | } |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1426 | |
| 1427 | struct gprs_rlcmac_ul_tbf *handle_tbf_reject(struct gprs_rlcmac_bts *bts, |
| 1428 | GprsMs *ms, uint32_t tlli, uint8_t trx_no, uint8_t ts) |
| 1429 | { |
| 1430 | struct gprs_rlcmac_ul_tbf *ul_tbf = NULL; |
| 1431 | struct gprs_rlcmac_trx *trx = &bts->trx[trx_no]; |
| 1432 | |
| 1433 | ul_tbf = talloc(tall_pcu_ctx, struct gprs_rlcmac_ul_tbf); |
| 1434 | if (!ul_tbf) |
| 1435 | return ul_tbf; |
| 1436 | |
| 1437 | talloc_set_destructor(ul_tbf, ul_tbf_dtor); |
| 1438 | new (ul_tbf) gprs_rlcmac_ul_tbf(bts->bts); |
| 1439 | if (!ms) |
| 1440 | ms = bts->bts->ms_alloc(0, 0); |
| 1441 | |
| 1442 | ms->set_tlli(tlli); |
| 1443 | |
| 1444 | llist_add(&ul_tbf->list(), &bts->bts->ul_tbfs()); |
| 1445 | ul_tbf->bts->tbf_ul_created(); |
| 1446 | ul_tbf->set_state(GPRS_RLCMAC_ASSIGN); |
| 1447 | ul_tbf->state_flags |= (1 << GPRS_RLCMAC_FLAG_PACCH); |
| 1448 | |
| 1449 | ul_tbf->set_ms(ms); |
| 1450 | ul_tbf->update_ms(tlli, GPRS_RLCMAC_UL_TBF); |
| 1451 | ul_tbf->ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS_REJ; |
| 1452 | ul_tbf->control_ts = ts; |
| 1453 | ul_tbf->trx = trx; |
| 1454 | ul_tbf->m_ctrs = rate_ctr_group_alloc(ul_tbf, &tbf_ctrg_desc, 0); |
| 1455 | ul_tbf->m_ul_egprs_ctrs = rate_ctr_group_alloc(ul_tbf, |
| 1456 | &tbf_ul_egprs_ctrg_desc, 0); |
| 1457 | ul_tbf->m_ul_gprs_ctrs = rate_ctr_group_alloc(ul_tbf, |
| 1458 | &tbf_ul_gprs_ctrg_desc, 0); |
Harald Welte | 9530a40 | 2017-07-12 00:46:36 +0200 | [diff] [blame] | 1459 | if (!ul_tbf->m_ctrs || !ul_tbf->m_ul_egprs_ctrs || !ul_tbf->m_ul_gprs_ctrs) { |
| 1460 | LOGP(DRLCMAC, LOGL_ERROR, "Cound not allocate TBF UL rate counters\n"); |
| 1461 | talloc_free(ul_tbf); |
| 1462 | return NULL; |
| 1463 | } |
aravind sirsikar | e9a138e | 2017-01-24 12:36:08 +0530 | [diff] [blame] | 1464 | |
| 1465 | return ul_tbf; |
| 1466 | } |