1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2013-2014, 2018-2020, 2022-2025 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 */ 6 #include <linux/ieee80211.h> 7 #include <linux/etherdevice.h> 8 #include <net/mac80211.h> 9 10 #include "fw/api/coex.h" 11 #include "iwl-modparams.h" 12 #include "mvm.h" 13 #include "iwl-debug.h" 14 15 /* 20MHz / 40MHz below / 40Mhz above*/ 16 static const __le64 iwl_ci_mask[][3] = { 17 /* dummy entry for channel 0 */ 18 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, 19 { 20 cpu_to_le64(0x0000001FFFULL), 21 cpu_to_le64(0x0ULL), 22 cpu_to_le64(0x00007FFFFFULL), 23 }, 24 { 25 cpu_to_le64(0x000000FFFFULL), 26 cpu_to_le64(0x0ULL), 27 cpu_to_le64(0x0003FFFFFFULL), 28 }, 29 { 30 cpu_to_le64(0x000003FFFCULL), 31 cpu_to_le64(0x0ULL), 32 cpu_to_le64(0x000FFFFFFCULL), 33 }, 34 { 35 cpu_to_le64(0x00001FFFE0ULL), 36 cpu_to_le64(0x0ULL), 37 cpu_to_le64(0x007FFFFFE0ULL), 38 }, 39 { 40 cpu_to_le64(0x00007FFF80ULL), 41 cpu_to_le64(0x00007FFFFFULL), 42 cpu_to_le64(0x01FFFFFF80ULL), 43 }, 44 { 45 cpu_to_le64(0x0003FFFC00ULL), 46 cpu_to_le64(0x0003FFFFFFULL), 47 cpu_to_le64(0x0FFFFFFC00ULL), 48 }, 49 { 50 cpu_to_le64(0x000FFFF000ULL), 51 cpu_to_le64(0x000FFFFFFCULL), 52 cpu_to_le64(0x3FFFFFF000ULL), 53 }, 54 { 55 cpu_to_le64(0x007FFF8000ULL), 56 cpu_to_le64(0x007FFFFFE0ULL), 57 cpu_to_le64(0xFFFFFF8000ULL), 58 }, 59 { 60 cpu_to_le64(0x01FFFE0000ULL), 61 cpu_to_le64(0x01FFFFFF80ULL), 62 cpu_to_le64(0xFFFFFE0000ULL), 63 }, 64 { 65 cpu_to_le64(0x0FFFF00000ULL), 66 cpu_to_le64(0x0FFFFFFC00ULL), 67 cpu_to_le64(0x0ULL), 68 }, 69 { 70 cpu_to_le64(0x3FFFC00000ULL), 71 cpu_to_le64(0x3FFFFFF000ULL), 72 cpu_to_le64(0x0) 73 }, 74 { 75 cpu_to_le64(0xFFFE000000ULL), 76 cpu_to_le64(0xFFFFFF8000ULL), 77 cpu_to_le64(0x0) 78 }, 79 { 80 cpu_to_le64(0xFFF8000000ULL), 81 cpu_to_le64(0xFFFFFE0000ULL), 82 cpu_to_le64(0x0) 83 }, 84 { 85 cpu_to_le64(0xFE00000000ULL), 86 cpu_to_le64(0x0ULL), 87 cpu_to_le64(0x0ULL) 88 }, 89 }; 90 91 static enum iwl_bt_coex_lut_type 92 iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) 93 { 94 struct ieee80211_chanctx_conf *chanctx_conf; 95 enum iwl_bt_coex_lut_type ret; 96 u16 phy_ctx_id; 97 u32 primary_ch_phy_id, secondary_ch_phy_id; 98 99 /* 100 * Checking that we hold mvm->mutex is a good idea, but the rate 101 * control can't acquire the mutex since it runs in Tx path. 102 * So this is racy in that case, but in the worst case, the AMPDU 103 * size limit will be wrong for a short time which is not a big 104 * issue. 105 */ 106 107 rcu_read_lock(); 108 109 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf); 110 111 if (!chanctx_conf || 112 chanctx_conf->def.chan->band != NL80211_BAND_2GHZ) { 113 rcu_read_unlock(); 114 return BT_COEX_INVALID_LUT; 115 } 116 117 ret = BT_COEX_TX_DIS_LUT; 118 119 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); 120 primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id); 121 secondary_ch_phy_id = 122 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id); 123 124 if (primary_ch_phy_id == phy_ctx_id) 125 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); 126 else if (secondary_ch_phy_id == phy_ctx_id) 127 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); 128 /* else - default = TX TX disallowed */ 129 130 rcu_read_unlock(); 131 132 return ret; 133 } 134 135 int iwl_mvm_send_bt_init_conf(struct iwl_mvm *mvm) 136 { 137 struct iwl_bt_coex_cmd bt_cmd = {}; 138 u32 mode; 139 140 lockdep_assert_held(&mvm->mutex); 141 142 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) { 143 switch (mvm->bt_force_ant_mode) { 144 case BT_FORCE_ANT_BT: 145 mode = BT_COEX_BT; 146 break; 147 case BT_FORCE_ANT_WIFI: 148 mode = BT_COEX_WIFI; 149 break; 150 default: 151 WARN_ON(1); 152 mode = 0; 153 } 154 155 bt_cmd.mode = cpu_to_le32(mode); 156 goto send_cmd; 157 } 158 159 bt_cmd.mode = cpu_to_le32(BT_COEX_NW); 160 161 if (IWL_MVM_BT_COEX_SYNC2SCO) 162 bt_cmd.enabled_modules |= 163 cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED); 164 165 if (iwl_mvm_is_mplut_supported(mvm)) 166 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED); 167 168 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET); 169 170 send_cmd: 171 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 172 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 173 174 return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd); 175 } 176 177 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, 178 bool enable) 179 { 180 struct iwl_bt_coex_reduced_txp_update_cmd cmd = {}; 181 struct iwl_mvm_sta *mvmsta; 182 u32 value; 183 184 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 185 return 0; 186 187 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 188 if (!mvmsta) 189 return 0; 190 191 /* nothing to do */ 192 if (mvmsta->bt_reduced_txpower == enable) 193 return 0; 194 195 value = mvmsta->deflink.sta_id; 196 197 if (enable) 198 value |= BT_REDUCED_TX_POWER_BIT; 199 200 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 201 enable ? "en" : "dis", sta_id); 202 203 cmd.reduced_txp = cpu_to_le32(value); 204 mvmsta->bt_reduced_txpower = enable; 205 206 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, 207 CMD_ASYNC, sizeof(cmd), &cmd); 208 } 209 210 struct iwl_bt_iterator_data { 211 struct iwl_bt_coex_prof_old_notif *notif; 212 struct iwl_mvm *mvm; 213 struct ieee80211_chanctx_conf *primary; 214 struct ieee80211_chanctx_conf *secondary; 215 bool primary_ll; 216 u8 primary_load; 217 u8 secondary_load; 218 }; 219 220 static inline 221 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 222 struct iwl_mvm_vif_link_info *link_info, 223 bool enable, int rssi) 224 { 225 link_info->bf_data.last_bt_coex_event = rssi; 226 link_info->bf_data.bt_coex_max_thold = 227 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0; 228 link_info->bf_data.bt_coex_min_thold = 229 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0; 230 } 231 232 #define MVM_COEX_TCM_PERIOD (HZ * 10) 233 234 static void iwl_mvm_bt_coex_tcm_based_ci(struct iwl_mvm *mvm, 235 struct iwl_bt_iterator_data *data) 236 { 237 unsigned long now = jiffies; 238 239 if (!time_after(now, mvm->bt_coex_last_tcm_ts + MVM_COEX_TCM_PERIOD)) 240 return; 241 242 mvm->bt_coex_last_tcm_ts = now; 243 244 /* We assume here that we don't have more than 2 vifs on 2.4GHz */ 245 246 /* if the primary is low latency, it will stay primary */ 247 if (data->primary_ll) 248 return; 249 250 if (data->primary_load >= data->secondary_load) 251 return; 252 253 swap(data->primary, data->secondary); 254 } 255 256 static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm, 257 struct ieee80211_vif *vif, 258 struct iwl_bt_iterator_data *data, 259 unsigned int link_id) 260 { 261 /* default smps_mode is AUTOMATIC - only used for client modes */ 262 enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC; 263 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 264 u32 bt_activity_grading, min_ag_for_static_smps; 265 struct ieee80211_chanctx_conf *chanctx_conf; 266 struct iwl_mvm_vif_link_info *link_info; 267 struct ieee80211_bss_conf *link_conf; 268 int ave_rssi; 269 270 lockdep_assert_held(&mvm->mutex); 271 272 link_info = mvmvif->link[link_id]; 273 if (!link_info) 274 return; 275 276 link_conf = rcu_dereference(vif->link_conf[link_id]); 277 /* This can happen due to races: if we receive the notification 278 * and have the mutex held, while mac80211 is stuck on our mutex 279 * in the middle of removing the link. 280 */ 281 if (!link_conf) 282 return; 283 284 chanctx_conf = rcu_dereference(link_conf->chanctx_conf); 285 286 /* If channel context is invalid or not on 2.4GHz .. */ 287 if ((!chanctx_conf || 288 chanctx_conf->def.chan->band != NL80211_BAND_2GHZ)) { 289 if (vif->type == NL80211_IFTYPE_STATION) { 290 /* ... relax constraints and disable rssi events */ 291 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 292 smps_mode, link_id); 293 iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, 294 false); 295 iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, false, 296 0); 297 } 298 return; 299 } 300 301 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2)) 302 min_ag_for_static_smps = BT_VERY_HIGH_TRAFFIC; 303 else 304 min_ag_for_static_smps = BT_HIGH_TRAFFIC; 305 306 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 307 if (bt_activity_grading >= min_ag_for_static_smps) 308 smps_mode = IEEE80211_SMPS_STATIC; 309 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 310 smps_mode = IEEE80211_SMPS_DYNAMIC; 311 312 /* relax SMPS constraints for next association */ 313 if (!vif->cfg.assoc) 314 smps_mode = IEEE80211_SMPS_AUTOMATIC; 315 316 if (link_info->phy_ctxt && 317 (mvm->last_bt_notif.rrc_status & BIT(link_info->phy_ctxt->id))) 318 smps_mode = IEEE80211_SMPS_AUTOMATIC; 319 320 IWL_DEBUG_COEX(data->mvm, 321 "mac %d link %d: bt_activity_grading %d smps_req %d\n", 322 mvmvif->id, link_info->fw_link_id, 323 bt_activity_grading, smps_mode); 324 325 if (vif->type == NL80211_IFTYPE_STATION) 326 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 327 smps_mode, link_id); 328 329 /* low latency is always primary */ 330 if (iwl_mvm_vif_low_latency(mvmvif)) { 331 data->primary_ll = true; 332 333 data->secondary = data->primary; 334 data->primary = chanctx_conf; 335 } 336 337 if (vif->type == NL80211_IFTYPE_AP) { 338 if (!mvmvif->ap_ibss_active) 339 return; 340 341 if (chanctx_conf == data->primary) 342 return; 343 344 if (!data->primary_ll) { 345 /* 346 * downgrade the current primary no matter what its 347 * type is. 348 */ 349 data->secondary = data->primary; 350 data->primary = chanctx_conf; 351 } else { 352 /* there is low latency vif - we will be secondary */ 353 data->secondary = chanctx_conf; 354 } 355 356 /* FIXME: TCM load per interface? or need something per link? */ 357 if (data->primary == chanctx_conf) 358 data->primary_load = mvm->tcm.result.load[mvmvif->id]; 359 else if (data->secondary == chanctx_conf) 360 data->secondary_load = mvm->tcm.result.load[mvmvif->id]; 361 return; 362 } 363 364 /* 365 * STA / P2P Client, try to be primary if first vif. If we are in low 366 * latency mode, we are already in primary and just don't do much 367 */ 368 if (!data->primary || data->primary == chanctx_conf) 369 data->primary = chanctx_conf; 370 else if (!data->secondary) 371 /* if secondary is not NULL, it might be a GO */ 372 data->secondary = chanctx_conf; 373 374 /* FIXME: TCM load per interface? or need something per link? */ 375 if (data->primary == chanctx_conf) 376 data->primary_load = mvm->tcm.result.load[mvmvif->id]; 377 else if (data->secondary == chanctx_conf) 378 data->secondary_load = mvm->tcm.result.load[mvmvif->id]; 379 /* 380 * don't reduce the Tx power if one of these is true: 381 * we are in LOOSE 382 * BT is inactive 383 * we are not associated 384 */ 385 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 386 le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF || 387 !vif->cfg.assoc) { 388 iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, false); 389 iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, false, 0); 390 return; 391 } 392 393 /* try to get the avg rssi from fw */ 394 ave_rssi = link_info->bf_data.ave_beacon_signal; 395 396 /* if the RSSI isn't valid, fake it is very low */ 397 if (!ave_rssi) 398 ave_rssi = -100; 399 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) { 400 if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, 401 true)) 402 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 403 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) { 404 if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, 405 false)) 406 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 407 } 408 409 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 410 iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, true, ave_rssi); 411 } 412 413 /* must be called under rcu_read_lock */ 414 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 415 struct ieee80211_vif *vif) 416 { 417 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 418 struct iwl_bt_iterator_data *data = _data; 419 struct iwl_mvm *mvm = data->mvm; 420 unsigned int link_id; 421 422 lockdep_assert_held(&mvm->mutex); 423 424 switch (vif->type) { 425 case NL80211_IFTYPE_STATION: 426 break; 427 case NL80211_IFTYPE_AP: 428 if (!mvmvif->ap_ibss_active) 429 return; 430 break; 431 default: 432 return; 433 } 434 435 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) 436 iwl_mvm_bt_notif_per_link(mvm, vif, data, link_id); 437 } 438 439 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 440 { 441 struct iwl_bt_iterator_data data = { 442 .mvm = mvm, 443 .notif = &mvm->last_bt_notif, 444 }; 445 struct iwl_bt_coex_ci_cmd cmd = {}; 446 u8 ci_bw_idx; 447 448 /* Ignore updates if we are in force mode */ 449 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 450 return; 451 452 rcu_read_lock(); 453 ieee80211_iterate_active_interfaces_atomic( 454 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 455 iwl_mvm_bt_notif_iterator, &data); 456 457 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) { 458 rcu_read_unlock(); 459 return; 460 } 461 462 iwl_mvm_bt_coex_tcm_based_ci(mvm, &data); 463 464 if (data.primary) { 465 struct ieee80211_chanctx_conf *chan = data.primary; 466 if (WARN_ON(!chan->def.chan)) { 467 rcu_read_unlock(); 468 return; 469 } 470 471 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 472 ci_bw_idx = 0; 473 } else { 474 if (chan->def.center_freq1 > 475 chan->def.chan->center_freq) 476 ci_bw_idx = 2; 477 else 478 ci_bw_idx = 1; 479 } 480 481 cmd.bt_primary_ci = 482 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 483 cmd.primary_ch_phy_id = 484 cpu_to_le32(*((u16 *)data.primary->drv_priv)); 485 } 486 487 if (data.secondary) { 488 struct ieee80211_chanctx_conf *chan = data.secondary; 489 if (WARN_ON(!data.secondary->def.chan)) { 490 rcu_read_unlock(); 491 return; 492 } 493 494 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 495 ci_bw_idx = 0; 496 } else { 497 if (chan->def.center_freq1 > 498 chan->def.chan->center_freq) 499 ci_bw_idx = 2; 500 else 501 ci_bw_idx = 1; 502 } 503 504 cmd.bt_secondary_ci = 505 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 506 cmd.secondary_ch_phy_id = 507 cpu_to_le32(*((u16 *)data.secondary->drv_priv)); 508 } 509 510 rcu_read_unlock(); 511 512 /* Don't spam the fw with the same command over and over */ 513 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 514 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0, 515 sizeof(cmd), &cmd)) 516 IWL_ERR(mvm, "Failed to send BT_CI cmd\n"); 517 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 518 } 519 } 520 521 void iwl_mvm_rx_bt_coex_old_notif(struct iwl_mvm *mvm, 522 struct iwl_rx_cmd_buffer *rxb) 523 { 524 struct iwl_rx_packet *pkt = rxb_addr(rxb); 525 struct iwl_bt_coex_prof_old_notif *notif = (void *)pkt->data; 526 527 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 528 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 529 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 530 le32_to_cpu(notif->primary_ch_lut)); 531 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 532 le32_to_cpu(notif->secondary_ch_lut)); 533 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 534 le32_to_cpu(notif->bt_activity_grading)); 535 536 /* remember this notification for future use: rssi fluctuations */ 537 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 538 539 iwl_mvm_bt_coex_notif_handle(mvm); 540 } 541 542 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 543 enum ieee80211_rssi_event_data rssi_event) 544 { 545 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 546 int ret; 547 548 lockdep_assert_held(&mvm->mutex); 549 550 /* Ignore updates if we are in force mode */ 551 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 552 return; 553 554 /* 555 * Rssi update while not associated - can happen since the statistics 556 * are handled asynchronously 557 */ 558 if (mvmvif->deflink.ap_sta_id == IWL_INVALID_STA) 559 return; 560 561 /* No BT - reports should be disabled */ 562 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) 563 return; 564 565 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 566 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 567 568 /* 569 * Check if rssi is good enough for reduced Tx power, but not in loose 570 * scheme. 571 */ 572 if (rssi_event == RSSI_EVENT_LOW || 573 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 574 ret = iwl_mvm_bt_coex_reduced_txp(mvm, 575 mvmvif->deflink.ap_sta_id, 576 false); 577 else 578 ret = iwl_mvm_bt_coex_reduced_txp(mvm, 579 mvmvif->deflink.ap_sta_id, 580 true); 581 582 if (ret) 583 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 584 } 585 586 #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 587 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 588 589 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 590 struct ieee80211_sta *sta) 591 { 592 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 593 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 594 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt; 595 enum iwl_bt_coex_lut_type lut_type; 596 597 if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id)) 598 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 599 600 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 601 BT_HIGH_TRAFFIC) 602 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 603 604 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 605 606 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT) 607 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 608 609 /* tight coex, high bt traffic, reduce AGG time limit */ 610 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 611 } 612 613 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 614 struct ieee80211_sta *sta) 615 { 616 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 617 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 618 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt; 619 enum iwl_bt_coex_lut_type lut_type; 620 621 if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id)) 622 return true; 623 624 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 625 BT_HIGH_TRAFFIC) 626 return true; 627 628 /* 629 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas 630 * since BT is already killed. 631 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while 632 * we Tx. 633 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO. 634 */ 635 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 636 return lut_type != BT_COEX_LOOSE_LUT; 637 } 638 639 bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant) 640 { 641 if (ant & mvm->cfg->non_shared_ant) 642 return true; 643 644 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 645 BT_HIGH_TRAFFIC; 646 } 647 648 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm) 649 { 650 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC; 651 } 652 653 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, 654 enum nl80211_band band) 655 { 656 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); 657 658 if (band != NL80211_BAND_2GHZ) 659 return false; 660 661 return bt_activity >= BT_LOW_TRAFFIC; 662 } 663 664 u8 iwl_mvm_bt_coex_get_single_ant_msk(struct iwl_mvm *mvm, u8 enabled_ants) 665 { 666 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2) && 667 (mvm->cfg->non_shared_ant & enabled_ants)) 668 return mvm->cfg->non_shared_ant; 669 670 return first_antenna(enabled_ants); 671 } 672 673 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 674 struct ieee80211_tx_info *info, u8 ac) 675 { 676 __le16 fc = hdr->frame_control; 677 bool mplut_enabled = iwl_mvm_is_mplut_supported(mvm); 678 679 if (info->band != NL80211_BAND_2GHZ) 680 return 0; 681 682 if (unlikely(mvm->bt_tx_prio)) 683 return mvm->bt_tx_prio - 1; 684 685 if (likely(ieee80211_is_data(fc))) { 686 if (likely(ieee80211_is_data_qos(fc))) { 687 switch (ac) { 688 case IEEE80211_AC_BE: 689 return mplut_enabled ? 1 : 0; 690 case IEEE80211_AC_VI: 691 return mplut_enabled ? 2 : 3; 692 case IEEE80211_AC_VO: 693 return 3; 694 default: 695 return 0; 696 } 697 } else if (is_multicast_ether_addr(hdr->addr1)) { 698 return 3; 699 } else 700 return 0; 701 } else if (ieee80211_is_mgmt(fc)) { 702 return ieee80211_is_disassoc(fc) ? 0 : 3; 703 } else if (ieee80211_is_ctl(fc)) { 704 /* ignore cfend and cfendack frames as we never send those */ 705 return 3; 706 } 707 708 return 0; 709 } 710 711 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 712 { 713 iwl_mvm_bt_coex_notif_handle(mvm); 714 } 715