Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 1 | /* gprs_ms.cpp |
| 2 | * |
| 3 | * Copyright (C) 2015 by Sysmocom s.f.m.c. GmbH |
| 4 | * Author: Jacob Erlbeck <jerlbeck@sysmocom.de> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version 2 |
| 9 | * of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 | */ |
| 20 | |
| 21 | |
| 22 | #include "gprs_ms.h" |
| 23 | |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 24 | #include "bts.h" |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 25 | #include "tbf.h" |
| 26 | #include "gprs_debug.h" |
| 27 | |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 28 | #include <time.h> |
| 29 | |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 30 | extern "C" { |
| 31 | #include <osmocom/core/talloc.h> |
| 32 | #include <osmocom/core/utils.h> |
| 33 | } |
| 34 | |
| 35 | extern void *tall_pcu_ctx; |
| 36 | |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 37 | static int64_t now_msec() |
| 38 | { |
| 39 | struct timespec ts; |
| 40 | clock_gettime(CLOCK_MONOTONIC, &ts); |
| 41 | |
| 42 | return int64_t(ts.tv_sec) * 1000 + ts.tv_nsec / 1000000; |
| 43 | } |
| 44 | |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 45 | struct GprsMsDefaultCallback: public GprsMs::Callback { |
| 46 | virtual void ms_idle(class GprsMs *ms) { |
| 47 | delete ms; |
| 48 | } |
| 49 | virtual void ms_active(class GprsMs *) {} |
| 50 | }; |
| 51 | |
| 52 | static GprsMsDefaultCallback gprs_default_cb; |
| 53 | |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 54 | GprsMs::Guard::Guard(GprsMs *ms) : |
| 55 | m_ms(ms ? ms->ref() : NULL) |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 56 | { |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | GprsMs::Guard::~Guard() |
| 60 | { |
| 61 | if (m_ms) |
| 62 | m_ms->unref(); |
| 63 | } |
| 64 | |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 65 | void GprsMs::timeout(void *priv_) |
| 66 | { |
| 67 | GprsMs *ms = static_cast<GprsMs *>(priv_); |
| 68 | |
| 69 | LOGP(DRLCMAC, LOGL_INFO, "Timeout for MS object, TLLI = 0x%08x\n", |
| 70 | ms->tlli()); |
| 71 | |
| 72 | if (ms->m_timer.data) { |
| 73 | ms->m_timer.data = NULL; |
| 74 | ms->unref(); |
| 75 | } |
| 76 | } |
| 77 | |
Jacob Erlbeck | 17214bb | 2015-06-02 14:06:12 +0200 | [diff] [blame] | 78 | GprsMs::GprsMs(BTS *bts, uint32_t tlli) : |
| 79 | m_bts(bts), |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 80 | m_cb(&gprs_default_cb), |
| 81 | m_ul_tbf(NULL), |
| 82 | m_dl_tbf(NULL), |
| 83 | m_tlli(tlli), |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 84 | m_new_ul_tlli(0), |
| 85 | m_new_dl_tlli(0), |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 86 | m_ta(0), |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 87 | m_ms_class(0), |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 88 | m_current_cs_ul(1), |
| 89 | m_current_cs_dl(1), |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 90 | m_is_idle(true), |
Jacob Erlbeck | 5367086 | 2015-05-12 17:54:33 +0200 | [diff] [blame] | 91 | m_ref(0), |
| 92 | m_list(this) |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 93 | { |
| 94 | LOGP(DRLCMAC, LOGL_INFO, "Creating MS object, TLLI = 0x%08x\n", tlli); |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 95 | |
| 96 | m_imsi[0] = 0; |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 97 | memset(&m_timer, 0, sizeof(m_timer)); |
| 98 | m_timer.cb = GprsMs::timeout; |
Jacob Erlbeck | 489a2b3 | 2015-05-28 19:07:01 +0200 | [diff] [blame] | 99 | m_llc_queue.init(); |
Jacob Erlbeck | a700dd9 | 2015-06-02 16:00:41 +0200 | [diff] [blame] | 100 | if (m_bts) { |
| 101 | m_current_cs_ul = m_bts->bts_data()->initial_cs_ul; |
| 102 | if (m_current_cs_ul < 1) |
| 103 | m_current_cs_ul = 1; |
| 104 | |
| 105 | m_current_cs_dl = m_bts->bts_data()->initial_cs_dl; |
| 106 | if (m_current_cs_dl < 1) |
| 107 | m_current_cs_dl = 1; |
| 108 | } |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 109 | m_last_cs_not_low = now_msec(); |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 110 | } |
| 111 | |
| 112 | GprsMs::~GprsMs() |
| 113 | { |
| 114 | LOGP(DRLCMAC, LOGL_INFO, "Destroying MS object, TLLI = 0x%08x\n", tlli()); |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 115 | |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 116 | if (osmo_timer_pending(&m_timer)) |
| 117 | osmo_timer_del(&m_timer); |
| 118 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 119 | if (m_ul_tbf) { |
| 120 | m_ul_tbf->set_ms(NULL); |
| 121 | m_ul_tbf = NULL; |
| 122 | } |
| 123 | |
| 124 | if (m_dl_tbf) { |
| 125 | m_dl_tbf->set_ms(NULL); |
| 126 | m_dl_tbf = NULL; |
| 127 | } |
Jacob Erlbeck | 17214bb | 2015-06-02 14:06:12 +0200 | [diff] [blame] | 128 | m_llc_queue.clear(m_bts); |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | void* GprsMs::operator new(size_t size) |
| 132 | { |
| 133 | static void *tall_ms_ctx = NULL; |
| 134 | if (!tall_ms_ctx) |
| 135 | tall_ms_ctx = talloc_named_const(tall_pcu_ctx, 0, __PRETTY_FUNCTION__); |
| 136 | |
| 137 | return talloc_size(tall_ms_ctx, size); |
| 138 | } |
| 139 | |
| 140 | void GprsMs::operator delete(void* p) |
| 141 | { |
| 142 | talloc_free(p); |
| 143 | } |
| 144 | |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 145 | GprsMs *GprsMs::ref() |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 146 | { |
| 147 | m_ref += 1; |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 148 | return this; |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | void GprsMs::unref() |
| 152 | { |
| 153 | OSMO_ASSERT(m_ref >= 0); |
| 154 | m_ref -= 1; |
| 155 | if (m_ref == 0) |
| 156 | update_status(); |
| 157 | } |
| 158 | |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 159 | void GprsMs::start_timer() |
| 160 | { |
| 161 | if (m_delay == 0) |
| 162 | return; |
| 163 | |
| 164 | if (!m_timer.data) |
| 165 | m_timer.data = ref(); |
| 166 | |
| 167 | osmo_timer_schedule(&m_timer, m_delay, 0); |
| 168 | } |
| 169 | |
| 170 | void GprsMs::stop_timer() |
| 171 | { |
| 172 | if (!m_timer.data) |
| 173 | return; |
| 174 | |
| 175 | osmo_timer_del(&m_timer); |
| 176 | m_timer.data = NULL; |
| 177 | unref(); |
| 178 | } |
| 179 | |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 180 | void GprsMs::attach_tbf(struct gprs_rlcmac_tbf *tbf) |
| 181 | { |
| 182 | if (tbf->direction == GPRS_RLCMAC_DL_TBF) |
| 183 | attach_dl_tbf(static_cast<gprs_rlcmac_dl_tbf *>(tbf)); |
| 184 | else |
| 185 | attach_ul_tbf(static_cast<gprs_rlcmac_ul_tbf *>(tbf)); |
| 186 | } |
| 187 | |
| 188 | void GprsMs::attach_ul_tbf(struct gprs_rlcmac_ul_tbf *tbf) |
| 189 | { |
| 190 | if (m_ul_tbf == tbf) |
| 191 | return; |
| 192 | |
| 193 | LOGP(DRLCMAC, LOGL_INFO, "Attaching TBF to MS object, TLLI = 0x%08x, TBF = %s\n", |
| 194 | tlli(), tbf->name()); |
| 195 | |
| 196 | Guard guard(this); |
| 197 | |
| 198 | if (m_ul_tbf) |
| 199 | detach_tbf(m_ul_tbf); |
| 200 | |
| 201 | m_ul_tbf = tbf; |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 202 | |
| 203 | if (tbf) |
| 204 | stop_timer(); |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | void GprsMs::attach_dl_tbf(struct gprs_rlcmac_dl_tbf *tbf) |
| 208 | { |
| 209 | if (m_dl_tbf == tbf) |
| 210 | return; |
| 211 | |
| 212 | LOGP(DRLCMAC, LOGL_INFO, "Attaching TBF to MS object, TLLI = 0x%08x, TBF = %s\n", |
| 213 | tlli(), tbf->name()); |
| 214 | |
| 215 | Guard guard(this); |
| 216 | |
| 217 | if (m_dl_tbf) |
| 218 | detach_tbf(m_dl_tbf); |
| 219 | |
| 220 | m_dl_tbf = tbf; |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 221 | |
| 222 | if (tbf) |
| 223 | stop_timer(); |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 224 | } |
| 225 | |
| 226 | void GprsMs::detach_tbf(gprs_rlcmac_tbf *tbf) |
| 227 | { |
| 228 | if (m_ul_tbf && tbf == static_cast<gprs_rlcmac_tbf *>(m_ul_tbf)) |
| 229 | m_ul_tbf = NULL; |
| 230 | else if (m_dl_tbf && tbf == static_cast<gprs_rlcmac_tbf *>(m_dl_tbf)) |
| 231 | m_dl_tbf = NULL; |
| 232 | else |
| 233 | return; |
| 234 | |
| 235 | LOGP(DRLCMAC, LOGL_INFO, "Detaching TBF from MS object, TLLI = 0x%08x, TBF = %s\n", |
| 236 | tlli(), tbf->name()); |
| 237 | |
Jacob Erlbeck | fecece0 | 2015-05-08 12:13:08 +0200 | [diff] [blame] | 238 | if (tbf->ms() == this) |
| 239 | tbf->set_ms(NULL); |
| 240 | |
Jacob Erlbeck | d9e1024 | 2015-05-28 15:43:53 +0200 | [diff] [blame] | 241 | if (!m_dl_tbf && !m_dl_tbf) |
| 242 | start_timer(); |
| 243 | |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 244 | update_status(); |
| 245 | } |
| 246 | |
| 247 | void GprsMs::update_status() |
| 248 | { |
| 249 | if (m_ref > 0) |
| 250 | return; |
| 251 | |
| 252 | if (is_idle() && !m_is_idle) { |
| 253 | m_is_idle = true; |
| 254 | m_cb->ms_idle(this); |
| 255 | /* this can be deleted by now, do not access it */ |
| 256 | return; |
| 257 | } |
| 258 | |
| 259 | if (!is_idle() && m_is_idle) { |
| 260 | m_is_idle = false; |
| 261 | m_cb->ms_active(this); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | void GprsMs::set_tlli(uint32_t tlli) |
| 266 | { |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 267 | if (tlli == m_tlli || tlli == m_new_ul_tlli) |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 268 | return; |
| 269 | |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 270 | if (tlli != m_new_dl_tlli) { |
| 271 | LOGP(DRLCMAC, LOGL_INFO, |
| 272 | "Modifying MS object, UL TLLI: 0x%08x -> 0x%08x, " |
| 273 | "not yet confirmed\n", |
| 274 | this->tlli(), tlli); |
| 275 | m_new_ul_tlli = tlli; |
| 276 | return; |
| 277 | } |
| 278 | |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 279 | LOGP(DRLCMAC, LOGL_INFO, |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 280 | "Modifying MS object, TLLI: 0x%08x -> 0x%08x, " |
| 281 | "already confirmed partly\n", |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 282 | m_tlli, tlli); |
| 283 | |
| 284 | m_tlli = tlli; |
Jacob Erlbeck | 9399046 | 2015-05-15 15:50:43 +0200 | [diff] [blame] | 285 | m_new_dl_tlli = 0; |
| 286 | m_new_ul_tlli = 0; |
| 287 | } |
| 288 | |
| 289 | bool GprsMs::confirm_tlli(uint32_t tlli) |
| 290 | { |
| 291 | if (tlli == m_tlli || tlli == m_new_dl_tlli) |
| 292 | return false; |
| 293 | |
| 294 | if (tlli != m_new_ul_tlli) { |
| 295 | /* The MS has not sent a message with the new TLLI, which may |
| 296 | * happen according to the spec [TODO: add reference]. */ |
| 297 | |
| 298 | LOGP(DRLCMAC, LOGL_INFO, |
| 299 | "The MS object cannot fully confirm an unexpected TLLI: 0x%08x, " |
| 300 | "partly confirmed\n", tlli); |
| 301 | /* Use the network's idea of TLLI as candidate, this does not |
| 302 | * change the result value of tlli() */ |
| 303 | m_new_dl_tlli = tlli; |
| 304 | return false; |
| 305 | } |
| 306 | |
| 307 | LOGP(DRLCMAC, LOGL_INFO, |
| 308 | "Modifying MS object, TLLI: 0x%08x confirmed\n", tlli); |
| 309 | |
| 310 | m_tlli = tlli; |
| 311 | m_new_dl_tlli = 0; |
| 312 | m_new_ul_tlli = 0; |
| 313 | |
| 314 | return true; |
Jacob Erlbeck | e04e0b0 | 2015-05-06 18:30:48 +0200 | [diff] [blame] | 315 | } |
Jacob Erlbeck | b0e5eaf | 2015-05-21 11:07:16 +0200 | [diff] [blame] | 316 | |
| 317 | void GprsMs::set_imsi(const char *imsi) |
| 318 | { |
| 319 | if (!imsi) { |
| 320 | LOGP(DRLCMAC, LOGL_ERROR, "Expected IMSI!\n"); |
| 321 | return; |
| 322 | } |
| 323 | |
| 324 | if (imsi[0] && strlen(imsi) < 3) { |
| 325 | LOGP(DRLCMAC, LOGL_ERROR, "No valid IMSI '%s'!\n", |
| 326 | imsi); |
| 327 | return; |
| 328 | } |
| 329 | |
| 330 | if (strcmp(imsi, m_imsi) == 0) |
| 331 | return; |
| 332 | |
| 333 | LOGP(DRLCMAC, LOGL_INFO, |
| 334 | "Modifying MS object, TLLI = 0x%08x, IMSI '%s' -> '%s'\n", |
| 335 | tlli(), m_imsi, imsi); |
| 336 | |
| 337 | strncpy(m_imsi, imsi, sizeof(m_imsi)); |
| 338 | m_imsi[sizeof(m_imsi) - 1] = '\0'; |
| 339 | } |
| 340 | |
Jacob Erlbeck | 9200ce6 | 2015-05-22 17:48:04 +0200 | [diff] [blame] | 341 | void GprsMs::set_ta(uint8_t ta_) |
| 342 | { |
| 343 | if (ta_ == m_ta) |
| 344 | return; |
| 345 | |
| 346 | LOGP(DRLCMAC, LOGL_INFO, |
| 347 | "Modifying MS object, TLLI = 0x%08x, TA %d -> %d\n", |
| 348 | tlli(), m_ta, ta_); |
| 349 | |
| 350 | m_ta = ta_; |
| 351 | } |
| 352 | |
Jacob Erlbeck | befc760 | 2015-06-02 12:33:30 +0200 | [diff] [blame] | 353 | void GprsMs::set_ms_class(uint8_t ms_class_) |
| 354 | { |
| 355 | if (ms_class_ == m_ms_class) |
| 356 | return; |
| 357 | |
| 358 | LOGP(DRLCMAC, LOGL_INFO, |
| 359 | "Modifying MS object, TLLI = 0x%08x, MS class %d -> %d\n", |
| 360 | tlli(), m_ms_class, ms_class_); |
| 361 | |
| 362 | m_ms_class = ms_class_; |
| 363 | } |
| 364 | |
Jacob Erlbeck | 1751c62 | 2015-06-04 12:12:32 +0200 | [diff] [blame] | 365 | void GprsMs::update_error_rate(gprs_rlcmac_tbf *tbf, int error_rate) |
| 366 | { |
| 367 | struct gprs_rlcmac_bts *bts_data; |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 368 | int64_t now; |
Jacob Erlbeck | b33e675 | 2015-06-04 19:04:30 +0200 | [diff] [blame^] | 369 | uint8_t max_cs_ul = 4, max_cs_dl = 4; |
Jacob Erlbeck | 1751c62 | 2015-06-04 12:12:32 +0200 | [diff] [blame] | 370 | |
| 371 | OSMO_ASSERT(m_bts != NULL); |
| 372 | bts_data = m_bts->bts_data(); |
| 373 | |
| 374 | if (error_rate < 0) |
| 375 | return; |
| 376 | |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 377 | now = now_msec(); |
| 378 | |
Jacob Erlbeck | b33e675 | 2015-06-04 19:04:30 +0200 | [diff] [blame^] | 379 | if (bts_data->max_cs_ul) |
| 380 | max_cs_ul = bts_data->max_cs_ul; |
| 381 | |
| 382 | if (bts_data->max_cs_dl) |
| 383 | max_cs_dl = bts_data->max_cs_dl; |
| 384 | |
Jacob Erlbeck | 1751c62 | 2015-06-04 12:12:32 +0200 | [diff] [blame] | 385 | /* TODO: Support different CS values for UL and DL */ |
| 386 | |
| 387 | if (error_rate > bts_data->cs_adj_upper_limit) { |
| 388 | if (m_current_cs_dl > 1) { |
| 389 | m_current_cs_dl -= 1; |
| 390 | m_current_cs_ul = m_current_cs_dl; |
| 391 | LOGP(DRLCMACDL, LOGL_INFO, |
| 392 | "MS (IMSI %s): High error rate %d%%, " |
| 393 | "reducing CS level to %d\n", |
| 394 | imsi(), error_rate, m_current_cs_dl); |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 395 | m_last_cs_not_low = now; |
Jacob Erlbeck | 1751c62 | 2015-06-04 12:12:32 +0200 | [diff] [blame] | 396 | } |
| 397 | } else if (error_rate < bts_data->cs_adj_lower_limit) { |
Jacob Erlbeck | b33e675 | 2015-06-04 19:04:30 +0200 | [diff] [blame^] | 398 | if (m_current_cs_dl < max_cs_dl) { |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 399 | if (now - m_last_cs_not_low > 1000) { |
| 400 | m_current_cs_dl += 1; |
Jacob Erlbeck | b33e675 | 2015-06-04 19:04:30 +0200 | [diff] [blame^] | 401 | if (m_current_cs_dl <= max_cs_ul) |
| 402 | m_current_cs_ul = m_current_cs_dl; |
| 403 | |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 404 | LOGP(DRLCMACDL, LOGL_INFO, |
| 405 | "MS (IMSI %s): Low error rate %d%%, " |
| 406 | "increasing CS level to %d\n", |
| 407 | imsi(), error_rate, m_current_cs_dl); |
| 408 | m_last_cs_not_low = now; |
| 409 | } else { |
| 410 | LOGP(DRLCMACDL, LOGL_DEBUG, |
| 411 | "MS (IMSI %s): Low error rate %d%%, " |
| 412 | "ignored (within blocking period)\n", |
| 413 | imsi(), error_rate); |
| 414 | } |
Jacob Erlbeck | 1751c62 | 2015-06-04 12:12:32 +0200 | [diff] [blame] | 415 | } |
| 416 | } else { |
| 417 | LOGP(DRLCMACDL, LOGL_DEBUG, |
| 418 | "MS (IMSI %s): Medium error rate %d%%, ignored\n", |
| 419 | imsi(), error_rate); |
Jacob Erlbeck | 8158ea7 | 2015-06-04 17:46:33 +0200 | [diff] [blame] | 420 | m_last_cs_not_low = now; |
Jacob Erlbeck | 1751c62 | 2015-06-04 12:12:32 +0200 | [diff] [blame] | 421 | } |
| 422 | } |