1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2/* 3 * Copyright (C) 2013-2014, 2018-2020, 2022 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*/ 16static 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 91static enum iwl_bt_coex_lut_type 92iwl_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 if (mvm->cfg->bt_shared_single_ant) { 120 rcu_read_unlock(); 121 return ret; 122 } 123 124 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); 125 primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id); 126 secondary_ch_phy_id = 127 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id); 128 129 if (primary_ch_phy_id == phy_ctx_id) 130 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); 131 else if (secondary_ch_phy_id == phy_ctx_id) 132 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); 133 /* else - default = TX TX disallowed */ 134 135 rcu_read_unlock(); 136 137 return ret; 138} 139 140int iwl_mvm_send_bt_init_conf(struct iwl_mvm *mvm) 141{ 142 struct iwl_bt_coex_cmd bt_cmd = {}; 143 u32 mode; 144 145 lockdep_assert_held(&mvm->mutex); 146 147 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) { 148 switch (mvm->bt_force_ant_mode) { 149 case BT_FORCE_ANT_BT: 150 mode = BT_COEX_BT; 151 break; 152 case BT_FORCE_ANT_WIFI: 153 mode = BT_COEX_WIFI; 154 break; 155 default: 156 WARN_ON(1); 157 mode = 0; 158 } 159 160 bt_cmd.mode = cpu_to_le32(mode); 161 goto send_cmd; 162 } 163 164 bt_cmd.mode = cpu_to_le32(BT_COEX_NW); 165 166 if (IWL_MVM_BT_COEX_SYNC2SCO) 167 bt_cmd.enabled_modules |= 168 cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED); 169 170 if (iwl_mvm_is_mplut_supported(mvm)) 171 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED); 172 173 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET); 174 175send_cmd: 176 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 177 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 178 179 return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd); 180} 181 182static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, 183 bool enable) 184{ 185 struct iwl_bt_coex_reduced_txp_update_cmd cmd = {}; 186 struct iwl_mvm_sta *mvmsta; 187 u32 value; 188 189 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 190 if (!mvmsta) 191 return 0; 192 193 /* nothing to do */ 194 if (mvmsta->bt_reduced_txpower == enable) 195 return 0; 196 197 value = mvmsta->deflink.sta_id; 198 199 if (enable) 200 value |= BT_REDUCED_TX_POWER_BIT; 201 202 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 203 enable ? "en" : "dis", sta_id); 204 205 cmd.reduced_txp = cpu_to_le32(value); 206 mvmsta->bt_reduced_txpower = enable; 207 208 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, 209 CMD_ASYNC, sizeof(cmd), &cmd); 210} 211 212struct iwl_bt_iterator_data { 213 struct iwl_bt_coex_profile_notif *notif; 214 struct iwl_mvm *mvm; 215 struct ieee80211_chanctx_conf *primary; 216 struct ieee80211_chanctx_conf *secondary; 217 bool primary_ll; 218 u8 primary_load; 219 u8 secondary_load; 220}; 221 222static inline 223void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 224 struct ieee80211_vif *vif, 225 bool enable, int rssi) 226{ 227 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 228 229 mvmvif->bf_data.last_bt_coex_event = rssi; 230 mvmvif->bf_data.bt_coex_max_thold = 231 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0; 232 mvmvif->bf_data.bt_coex_min_thold = 233 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0; 234} 235 236#define MVM_COEX_TCM_PERIOD (HZ * 10) 237 238static void iwl_mvm_bt_coex_tcm_based_ci(struct iwl_mvm *mvm, 239 struct iwl_bt_iterator_data *data) 240{ 241 unsigned long now = jiffies; 242 243 if (!time_after(now, mvm->bt_coex_last_tcm_ts + MVM_COEX_TCM_PERIOD)) 244 return; 245 246 mvm->bt_coex_last_tcm_ts = now; 247 248 /* We assume here that we don't have more than 2 vifs on 2.4GHz */ 249 250 /* if the primary is low latency, it will stay primary */ 251 if (data->primary_ll) 252 return; 253 254 if (data->primary_load >= data->secondary_load) 255 return; 256 257 swap(data->primary, data->secondary); 258} 259 260static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm, 261 struct ieee80211_vif *vif, 262 struct iwl_bt_iterator_data *data, 263 unsigned int link_id) 264{ 265 /* default smps_mode is AUTOMATIC - only used for client modes */ 266 enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC; 267 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 268 u32 bt_activity_grading, min_ag_for_static_smps; 269 struct ieee80211_chanctx_conf *chanctx_conf; 270 struct iwl_mvm_vif_link_info *link_info; 271 struct ieee80211_bss_conf *link_conf; 272 int ave_rssi; 273 274 lockdep_assert_held(&mvm->mutex); 275 276 link_info = mvmvif->link[link_id]; 277 if (!link_info) 278 return; 279 280 link_conf = rcu_dereference(vif->link_conf[link_id]); 281 /* This can happen due to races: if we receive the notification 282 * and have the mutex held, while mac80211 is stuck on our mutex 283 * in the middle of removing the link. 284 */ 285 if (!link_conf) 286 return; 287 288 chanctx_conf = rcu_dereference(link_conf->chanctx_conf); 289 290 /* If channel context is invalid or not on 2.4GHz .. */ 291 if ((!chanctx_conf || 292 chanctx_conf->def.chan->band != NL80211_BAND_2GHZ)) { 293 if (vif->type == NL80211_IFTYPE_STATION) { 294 /* ... relax constraints and disable rssi events */ 295 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 296 smps_mode, link_id); 297 iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, 298 false); 299 /* FIXME: should this be per link? */ 300 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 301 } 302 return; 303 } 304 305 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2)) 306 min_ag_for_static_smps = BT_VERY_HIGH_TRAFFIC; 307 else 308 min_ag_for_static_smps = BT_HIGH_TRAFFIC; 309 310 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 311 if (bt_activity_grading >= min_ag_for_static_smps) 312 smps_mode = IEEE80211_SMPS_STATIC; 313 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 314 smps_mode = IEEE80211_SMPS_DYNAMIC; 315 316 /* relax SMPS constraints for next association */ 317 if (!vif->cfg.assoc) 318 smps_mode = IEEE80211_SMPS_AUTOMATIC; 319 320 if (link_info->phy_ctxt && 321 (mvm->last_bt_notif.rrc_status & BIT(link_info->phy_ctxt->id))) 322 smps_mode = IEEE80211_SMPS_AUTOMATIC; 323 324 IWL_DEBUG_COEX(data->mvm, 325 "mac %d link %d: bt_activity_grading %d smps_req %d\n", 326 mvmvif->id, link_info->fw_link_id, 327 bt_activity_grading, smps_mode); 328 329 if (vif->type == NL80211_IFTYPE_STATION) 330 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 331 smps_mode, link_id); 332 333 /* low latency is always primary */ 334 if (iwl_mvm_vif_low_latency(mvmvif)) { 335 data->primary_ll = true; 336 337 data->secondary = data->primary; 338 data->primary = chanctx_conf; 339 } 340 341 if (vif->type == NL80211_IFTYPE_AP) { 342 if (!mvmvif->ap_ibss_active) 343 return; 344 345 if (chanctx_conf == data->primary) 346 return; 347 348 if (!data->primary_ll) { 349 /* 350 * downgrade the current primary no matter what its 351 * type is. 352 */ 353 data->secondary = data->primary; 354 data->primary = chanctx_conf; 355 } else { 356 /* there is low latency vif - we will be secondary */ 357 data->secondary = chanctx_conf; 358 } 359 360 /* FIXME: TCM load per interface? or need something per link? */ 361 if (data->primary == chanctx_conf) 362 data->primary_load = mvm->tcm.result.load[mvmvif->id]; 363 else if (data->secondary == chanctx_conf) 364 data->secondary_load = mvm->tcm.result.load[mvmvif->id]; 365 return; 366 } 367 368 /* 369 * STA / P2P Client, try to be primary if first vif. If we are in low 370 * latency mode, we are already in primary and just don't do much 371 */ 372 if (!data->primary || data->primary == chanctx_conf) 373 data->primary = chanctx_conf; 374 else if (!data->secondary) 375 /* if secondary is not NULL, it might be a GO */ 376 data->secondary = chanctx_conf; 377 378 /* FIXME: TCM load per interface? or need something per link? */ 379 if (data->primary == chanctx_conf) 380 data->primary_load = mvm->tcm.result.load[mvmvif->id]; 381 else if (data->secondary == chanctx_conf) 382 data->secondary_load = mvm->tcm.result.load[mvmvif->id]; 383 /* 384 * don't reduce the Tx power if one of these is true: 385 * we are in LOOSE 386 * single share antenna product 387 * BT is inactive 388 * we are not associated 389 */ 390 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 391 mvm->cfg->bt_shared_single_ant || !vif->cfg.assoc || 392 le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) { 393 iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, false); 394 /* FIXME: should this be per link? */ 395 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 396 return; 397 } 398 399 /* try to get the avg rssi from fw */ 400 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 401 402 /* if the RSSI isn't valid, fake it is very low */ 403 if (!ave_rssi) 404 ave_rssi = -100; 405 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) { 406 if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, 407 true)) 408 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 409 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) { 410 if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, 411 false)) 412 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 413 } 414 415 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 416 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 417} 418 419/* must be called under rcu_read_lock */ 420static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 421 struct ieee80211_vif *vif) 422{ 423 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 424 struct iwl_bt_iterator_data *data = _data; 425 struct iwl_mvm *mvm = data->mvm; 426 unsigned int link_id; 427 428 lockdep_assert_held(&mvm->mutex); 429 430 switch (vif->type) { 431 case NL80211_IFTYPE_STATION: 432 break; 433 case NL80211_IFTYPE_AP: 434 if (!mvmvif->ap_ibss_active) 435 return; 436 break; 437 default: 438 return; 439 } 440 441 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) 442 iwl_mvm_bt_notif_per_link(mvm, vif, data, link_id); 443} 444 445static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 446{ 447 struct iwl_bt_iterator_data data = { 448 .mvm = mvm, 449 .notif = &mvm->last_bt_notif, 450 }; 451 struct iwl_bt_coex_ci_cmd cmd = {}; 452 u8 ci_bw_idx; 453 454 /* Ignore updates if we are in force mode */ 455 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 456 return; 457 458 rcu_read_lock(); 459 ieee80211_iterate_active_interfaces_atomic( 460 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 461 iwl_mvm_bt_notif_iterator, &data); 462 463 iwl_mvm_bt_coex_tcm_based_ci(mvm, &data); 464 465 if (data.primary) { 466 struct ieee80211_chanctx_conf *chan = data.primary; 467 if (WARN_ON(!chan->def.chan)) { 468 rcu_read_unlock(); 469 return; 470 } 471 472 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 473 ci_bw_idx = 0; 474 } else { 475 if (chan->def.center_freq1 > 476 chan->def.chan->center_freq) 477 ci_bw_idx = 2; 478 else 479 ci_bw_idx = 1; 480 } 481 482 cmd.bt_primary_ci = 483 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 484 cmd.primary_ch_phy_id = 485 cpu_to_le32(*((u16 *)data.primary->drv_priv)); 486 } 487 488 if (data.secondary) { 489 struct ieee80211_chanctx_conf *chan = data.secondary; 490 if (WARN_ON(!data.secondary->def.chan)) { 491 rcu_read_unlock(); 492 return; 493 } 494 495 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 496 ci_bw_idx = 0; 497 } else { 498 if (chan->def.center_freq1 > 499 chan->def.chan->center_freq) 500 ci_bw_idx = 2; 501 else 502 ci_bw_idx = 1; 503 } 504 505 cmd.bt_secondary_ci = 506 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 507 cmd.secondary_ch_phy_id = 508 cpu_to_le32(*((u16 *)data.secondary->drv_priv)); 509 } 510 511 rcu_read_unlock(); 512 513 /* Don't spam the fw with the same command over and over */ 514 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 515 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0, 516 sizeof(cmd), &cmd)) 517 IWL_ERR(mvm, "Failed to send BT_CI cmd\n"); 518 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 519 } 520} 521 522void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 523 struct iwl_rx_cmd_buffer *rxb) 524{ 525 struct iwl_rx_packet *pkt = rxb_addr(rxb); 526 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 527 528 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 529 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 530 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 531 le32_to_cpu(notif->primary_ch_lut)); 532 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 533 le32_to_cpu(notif->secondary_ch_lut)); 534 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 535 le32_to_cpu(notif->bt_activity_grading)); 536 537 /* remember this notification for future use: rssi fluctuations */ 538 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 539 540 iwl_mvm_bt_coex_notif_handle(mvm); 541} 542 543void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 544 enum ieee80211_rssi_event_data rssi_event) 545{ 546 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 547 int ret; 548 549 lockdep_assert_held(&mvm->mutex); 550 551 /* Ignore updates if we are in force mode */ 552 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 553 return; 554 555 /* 556 * Rssi update while not associated - can happen since the statistics 557 * are handled asynchronously 558 */ 559 if (mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA) 560 return; 561 562 /* No BT - reports should be disabled */ 563 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) 564 return; 565 566 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 567 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 568 569 /* 570 * Check if rssi is good enough for reduced Tx power, but not in loose 571 * scheme. 572 */ 573 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 574 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 575 ret = iwl_mvm_bt_coex_reduced_txp(mvm, 576 mvmvif->deflink.ap_sta_id, 577 false); 578 else 579 ret = iwl_mvm_bt_coex_reduced_txp(mvm, 580 mvmvif->deflink.ap_sta_id, 581 true); 582 583 if (ret) 584 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 585} 586 587#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 588#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 589 590u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 591 struct ieee80211_sta *sta) 592{ 593 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 594 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 595 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt; 596 enum iwl_bt_coex_lut_type lut_type; 597 598 if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id)) 599 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 600 601 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 602 BT_HIGH_TRAFFIC) 603 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 604 605 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 606 607 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT) 608 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 609 610 /* tight coex, high bt traffic, reduce AGG time limit */ 611 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 612} 613 614bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 615 struct ieee80211_sta *sta) 616{ 617 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 618 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 619 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt; 620 enum iwl_bt_coex_lut_type lut_type; 621 622 if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id)) 623 return true; 624 625 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 626 BT_HIGH_TRAFFIC) 627 return true; 628 629 /* 630 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas 631 * since BT is already killed. 632 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while 633 * we Tx. 634 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO. 635 */ 636 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 637 return lut_type != BT_COEX_LOOSE_LUT; 638} 639 640bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant) 641{ 642 /* there is no other antenna, shared antenna is always available */ 643 if (mvm->cfg->bt_shared_single_ant) 644 return true; 645 646 if (ant & mvm->cfg->non_shared_ant) 647 return true; 648 649 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 650 BT_HIGH_TRAFFIC; 651} 652 653bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm) 654{ 655 /* there is no other antenna, shared antenna is always available */ 656 if (mvm->cfg->bt_shared_single_ant) 657 return true; 658 659 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC; 660} 661 662bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, 663 enum nl80211_band band) 664{ 665 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); 666 667 if (band != NL80211_BAND_2GHZ) 668 return false; 669 670 return bt_activity >= BT_LOW_TRAFFIC; 671} 672 673u8 iwl_mvm_bt_coex_get_single_ant_msk(struct iwl_mvm *mvm, u8 enabled_ants) 674{ 675 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2) && 676 (mvm->cfg->non_shared_ant & enabled_ants)) 677 return mvm->cfg->non_shared_ant; 678 679 return first_antenna(enabled_ants); 680} 681 682u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 683 struct ieee80211_tx_info *info, u8 ac) 684{ 685 __le16 fc = hdr->frame_control; 686 bool mplut_enabled = iwl_mvm_is_mplut_supported(mvm); 687 688 if (info->band != NL80211_BAND_2GHZ) 689 return 0; 690 691 if (unlikely(mvm->bt_tx_prio)) 692 return mvm->bt_tx_prio - 1; 693 694 if (likely(ieee80211_is_data(fc))) { 695 if (likely(ieee80211_is_data_qos(fc))) { 696 switch (ac) { 697 case IEEE80211_AC_BE: 698 return mplut_enabled ? 1 : 0; 699 case IEEE80211_AC_VI: 700 return mplut_enabled ? 2 : 3; 701 case IEEE80211_AC_VO: 702 return 3; 703 default: 704 return 0; 705 } 706 } else if (is_multicast_ether_addr(hdr->addr1)) { 707 return 3; 708 } else 709 return 0; 710 } else if (ieee80211_is_mgmt(fc)) { 711 return ieee80211_is_disassoc(fc) ? 0 : 3; 712 } else if (ieee80211_is_ctl(fc)) { 713 /* ignore cfend and cfendack frames as we never send those */ 714 return 3; 715 } 716 717 return 0; 718} 719 720void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 721{ 722 iwl_mvm_bt_coex_notif_handle(mvm); 723} 724