1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2025 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-nvm-utils.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 #define IWL_MVM_LIMITS(ap) \ 34 { \ 35 .max = 1, \ 36 .types = BIT(NL80211_IFTYPE_STATION), \ 37 }, \ 38 { \ 39 .max = 1, \ 40 .types = ap | \ 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | \ 42 BIT(NL80211_IFTYPE_P2P_GO), \ 43 }, \ 44 { \ 45 .max = 1, \ 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), \ 47 } 48 49 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 50 IWL_MVM_LIMITS(0) 51 }; 52 53 static const struct ieee80211_iface_limit iwl_mvm_limits_ap[] = { 54 IWL_MVM_LIMITS(BIT(NL80211_IFTYPE_AP)) 55 }; 56 57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 58 { 59 .num_different_channels = 2, 60 .max_interfaces = 3, 61 .limits = iwl_mvm_limits, 62 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 63 }, 64 { 65 .num_different_channels = 1, 66 .max_interfaces = 3, 67 .limits = iwl_mvm_limits_ap, 68 .n_limits = ARRAY_SIZE(iwl_mvm_limits_ap), 69 }, 70 }; 71 72 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 73 .max_peers = IWL_TOF_MAX_APS, 74 .report_ap_tsf = 1, 75 .randomize_mac_addr = 1, 76 77 .ftm = { 78 .supported = 1, 79 .asap = 1, 80 .non_asap = 1, 81 .request_lci = 1, 82 .request_civicloc = 1, 83 .trigger_based = 1, 84 .non_trigger_based = 1, 85 .max_bursts_exponent = -1, /* all supported */ 86 .max_ftms_per_burst = 0, /* no limits */ 87 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 88 BIT(NL80211_CHAN_WIDTH_20) | 89 BIT(NL80211_CHAN_WIDTH_40) | 90 BIT(NL80211_CHAN_WIDTH_80) | 91 BIT(NL80211_CHAN_WIDTH_160), 92 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 93 BIT(NL80211_PREAMBLE_HT) | 94 BIT(NL80211_PREAMBLE_VHT) | 95 BIT(NL80211_PREAMBLE_HE), 96 }, 97 }; 98 99 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 100 enum set_key_cmd cmd, 101 struct ieee80211_vif *vif, 102 struct ieee80211_sta *sta, 103 struct ieee80211_key_conf *key); 104 105 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 106 { 107 int i; 108 109 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 110 for (i = 0; i < NUM_PHY_CTX; i++) { 111 mvm->phy_ctxts[i].id = i; 112 mvm->phy_ctxts[i].ref = 0; 113 } 114 } 115 116 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 117 const char *alpha2, 118 enum iwl_mcc_source src_id, 119 bool *changed) 120 { 121 struct ieee80211_regdomain *regd = NULL; 122 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 124 struct iwl_mcc_update_resp_v8 *resp; 125 u8 resp_ver; 126 127 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 128 129 lockdep_assert_held(&mvm->mutex); 130 131 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 132 if (IS_ERR_OR_NULL(resp)) { 133 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 134 PTR_ERR_OR_ZERO(resp)); 135 resp = NULL; 136 goto out; 137 } 138 139 if (changed) { 140 u32 status = le32_to_cpu(resp->status); 141 142 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 143 status == MCC_RESP_ILLEGAL); 144 } 145 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 146 MCC_UPDATE_CMD, 0); 147 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 148 149 regd = iwl_parse_nvm_mcc_info(mvm->trans, 150 __le32_to_cpu(resp->n_channels), 151 resp->channels, 152 __le16_to_cpu(resp->mcc), 153 __le16_to_cpu(resp->geo_info), 154 le32_to_cpu(resp->cap), resp_ver); 155 /* Store the return source id */ 156 src_id = resp->source_id; 157 if (IS_ERR_OR_NULL(regd)) { 158 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 159 PTR_ERR_OR_ZERO(regd)); 160 goto out; 161 } 162 163 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 164 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 165 mvm->lar_regdom_set = true; 166 mvm->mcc_src = src_id; 167 168 if (!iwl_puncturing_is_allowed_in_bios(mvm->bios_enable_puncturing, 169 le16_to_cpu(resp->mcc))) 170 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING); 171 else 172 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags); 173 174 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 175 176 out: 177 kfree(resp); 178 return regd; 179 } 180 181 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 182 { 183 bool changed; 184 struct ieee80211_regdomain *regd; 185 186 if (!iwl_mvm_is_lar_supported(mvm)) 187 return; 188 189 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 190 if (!IS_ERR_OR_NULL(regd)) { 191 /* only update the regulatory core if changed */ 192 if (changed) 193 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 194 195 kfree(regd); 196 } 197 } 198 199 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 200 bool *changed) 201 { 202 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 203 iwl_mvm_is_wifi_mcc_supported(mvm) ? 204 MCC_SOURCE_GET_CURRENT : 205 MCC_SOURCE_OLD_FW, changed); 206 } 207 208 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 209 { 210 enum iwl_mcc_source used_src; 211 struct ieee80211_regdomain *regd; 212 int ret; 213 bool changed; 214 const struct ieee80211_regdomain *r = 215 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 216 217 if (!r) 218 return -ENOENT; 219 220 /* save the last source in case we overwrite it below */ 221 used_src = mvm->mcc_src; 222 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 223 /* Notify the firmware we support wifi location updates */ 224 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 225 if (!IS_ERR_OR_NULL(regd)) 226 kfree(regd); 227 } 228 229 /* Now set our last stored MCC and source */ 230 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 231 &changed); 232 if (IS_ERR_OR_NULL(regd)) 233 return -EIO; 234 235 /* update cfg80211 if the regdomain was changed or the caller explicitly 236 * asked to update regdomain 237 */ 238 if (changed || force_regd_sync) 239 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 240 else 241 ret = 0; 242 243 kfree(regd); 244 return ret; 245 } 246 247 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 248 static const u8 he_if_types_ext_capa_sta[] = { 249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 251 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 252 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 253 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 254 }; 255 256 static const u8 tm_if_types_ext_capa_sta[] = { 257 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 258 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 259 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 260 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 261 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 262 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 263 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 264 }; 265 266 /* Additional interface types for which extended capabilities are 267 * specified separately 268 */ 269 270 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 271 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 272 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 273 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 274 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 275 #define IWL_MVM_MLD_CAPA_OPS (FIELD_PREP_CONST( \ 276 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \ 277 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) | \ 278 IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT) 279 280 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 281 { 282 .iftype = NL80211_IFTYPE_STATION, 283 .extended_capabilities = he_if_types_ext_capa_sta, 284 .extended_capabilities_mask = he_if_types_ext_capa_sta, 285 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 286 /* relevant only if EHT is supported */ 287 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 288 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 289 }, 290 { 291 .iftype = NL80211_IFTYPE_STATION, 292 .extended_capabilities = tm_if_types_ext_capa_sta, 293 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 294 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 295 /* relevant only if EHT is supported */ 296 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 297 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 298 }, 299 }; 300 301 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, int radio_idx, 302 u32 *tx_ant, u32 *rx_ant) 303 { 304 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 305 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 306 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 307 return 0; 308 } 309 310 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, int radio_idx, u32 tx_ant, 311 u32 rx_ant) 312 { 313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 314 315 /* This has been tested on those devices only */ 316 if (mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 317 mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_22000 && 318 mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_AX210) 319 return -EOPNOTSUPP; 320 321 if (!mvm->nvm_data) 322 return -EBUSY; 323 324 /* mac80211 ensures the device is not started, 325 * so the firmware cannot be running 326 */ 327 328 mvm->set_tx_ant = tx_ant; 329 mvm->set_rx_ant = rx_ant; 330 331 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 332 333 return 0; 334 } 335 336 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 337 { 338 struct ieee80211_hw *hw = mvm->hw; 339 int num_mac, ret, i; 340 static const u32 mvm_ciphers[] = { 341 WLAN_CIPHER_SUITE_WEP40, 342 WLAN_CIPHER_SUITE_WEP104, 343 WLAN_CIPHER_SUITE_TKIP, 344 WLAN_CIPHER_SUITE_CCMP, 345 }; 346 #ifdef CONFIG_PM_SLEEP 347 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 348 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 349 #endif 350 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 351 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 352 353 /* Tell mac80211 our characteristics */ 354 ieee80211_hw_set(hw, SIGNAL_DBM); 355 ieee80211_hw_set(hw, SPECTRUM_MGMT); 356 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 357 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 358 ieee80211_hw_set(hw, SUPPORTS_PS); 359 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 360 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 361 ieee80211_hw_set(hw, CONNECTION_MONITOR); 362 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 363 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 364 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 365 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 366 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 367 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 368 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 369 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 370 371 /* Set this early since we need to have it for the check below */ 372 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 373 !iwlwifi_mod_params.disable_11ax && 374 !iwlwifi_mod_params.disable_11be) { 375 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 376 /* we handle this already earlier, but need it for MLO */ 377 ieee80211_hw_set(hw, HANDLES_QUIET_CSA); 378 } 379 380 /* With MLD FW API, it tracks timing by itself, 381 * no need for any timing from the host 382 */ 383 if (!mvm->mld_api_is_used) 384 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 385 386 /* 387 * On older devices, enabling TX A-MSDU occasionally leads to 388 * something getting messed up, the command read from the FIFO 389 * gets out of sync and isn't a TX command, so that we have an 390 * assert EDC. 391 * 392 * It's not clear where the bug is, but since we didn't used to 393 * support A-MSDU until moving the mac80211 iTXQs, just leave it 394 * for older devices. We also don't see this issue on any newer 395 * devices. 396 */ 397 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 398 ieee80211_hw_set(hw, TX_AMSDU); 399 ieee80211_hw_set(hw, TX_FRAG_LIST); 400 401 if (iwl_mvm_has_tlc_offload(mvm)) { 402 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 403 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 404 } 405 406 /* We want to use the mac80211's reorder buffer for 9000 */ 407 if (iwl_mvm_has_new_rx_api(mvm) && 408 mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_9000) 409 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 410 411 if (fw_has_capa(&mvm->fw->ucode_capa, 412 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 413 ieee80211_hw_set(hw, AP_LINK_PS); 414 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 415 /* 416 * we absolutely need this for the new TX API since that comes 417 * with many more queues than the current code can deal with 418 * for station powersave 419 */ 420 return -EINVAL; 421 } 422 423 if (mvm->trans->info.num_rxqs > 1) 424 ieee80211_hw_set(hw, USES_RSS); 425 426 if (mvm->trans->info.max_skb_frags) 427 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 428 429 hw->queues = IEEE80211_NUM_ACS; 430 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 431 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 432 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 433 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 434 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 435 436 hw->radiotap_timestamp.units_pos = 437 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 438 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 439 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 440 hw->radiotap_timestamp.accuracy = 22; 441 442 if (!iwl_mvm_has_tlc_offload(mvm)) 443 hw->rate_control_algorithm = RS_NAME; 444 445 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 446 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 447 hw->max_tx_fragments = mvm->trans->info.max_skb_frags; 448 449 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 450 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 451 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 452 hw->wiphy->cipher_suites = mvm->ciphers; 453 454 if (iwl_mvm_has_new_rx_api(mvm)) { 455 mvm->ciphers[hw->wiphy->n_cipher_suites] = 456 WLAN_CIPHER_SUITE_GCMP; 457 hw->wiphy->n_cipher_suites++; 458 mvm->ciphers[hw->wiphy->n_cipher_suites] = 459 WLAN_CIPHER_SUITE_GCMP_256; 460 hw->wiphy->n_cipher_suites++; 461 } 462 463 if (iwlwifi_mod_params.swcrypto) 464 IWL_ERR(mvm, 465 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 466 if (!iwlwifi_mod_params.bt_coex_active) 467 IWL_ERR(mvm, 468 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 469 470 ieee80211_hw_set(hw, MFP_CAPABLE); 471 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 472 hw->wiphy->n_cipher_suites++; 473 if (iwl_mvm_has_new_rx_api(mvm)) { 474 mvm->ciphers[hw->wiphy->n_cipher_suites] = 475 WLAN_CIPHER_SUITE_BIP_GMAC_128; 476 hw->wiphy->n_cipher_suites++; 477 mvm->ciphers[hw->wiphy->n_cipher_suites] = 478 WLAN_CIPHER_SUITE_BIP_GMAC_256; 479 hw->wiphy->n_cipher_suites++; 480 } 481 482 wiphy_ext_feature_set(hw->wiphy, 483 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 484 wiphy_ext_feature_set(hw->wiphy, 485 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 486 487 if (fw_has_capa(&mvm->fw->ucode_capa, 488 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 489 wiphy_ext_feature_set(hw->wiphy, 490 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 491 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 492 } 493 494 if (sec_key_ver && 495 fw_has_capa(&mvm->fw->ucode_capa, 496 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 497 wiphy_ext_feature_set(hw->wiphy, 498 NL80211_EXT_FEATURE_BEACON_PROTECTION); 499 else if (fw_has_capa(&mvm->fw->ucode_capa, 500 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 501 wiphy_ext_feature_set(hw->wiphy, 502 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 503 504 if (fw_has_capa(&mvm->fw->ucode_capa, 505 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 506 hw->wiphy->hw_timestamp_max_peers = 1; 507 508 if (fw_has_capa(&mvm->fw->ucode_capa, 509 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 510 wiphy_ext_feature_set(hw->wiphy, 511 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 512 513 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 514 hw->wiphy->features |= 515 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 516 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 517 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 518 519 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 520 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 521 hw->chanctx_data_size = sizeof(u16); 522 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 523 524 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 525 BIT(NL80211_IFTYPE_P2P_CLIENT) | 526 BIT(NL80211_IFTYPE_AP) | 527 BIT(NL80211_IFTYPE_P2P_GO) | 528 BIT(NL80211_IFTYPE_P2P_DEVICE) | 529 BIT(NL80211_IFTYPE_ADHOC); 530 531 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 532 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 533 534 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 535 * the hw, preventing us to control which key(id) to use per MPDU. 536 * Till that's fixed we can't use Extended Key ID for the newer cards. 537 */ 538 if (!iwl_mvm_has_new_tx_api(mvm)) 539 wiphy_ext_feature_set(hw->wiphy, 540 NL80211_EXT_FEATURE_EXT_KEY_ID); 541 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 542 543 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 544 if (iwl_mvm_is_lar_supported(mvm)) 545 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 546 else 547 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 548 REGULATORY_DISABLE_BEACON_HINTS; 549 550 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 551 wiphy_ext_feature_set(hw->wiphy, 552 NL80211_EXT_FEATURE_DFS_CONCURRENT); 553 554 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 555 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 556 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 557 558 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 559 hw->wiphy->n_iface_combinations = 560 ARRAY_SIZE(iwl_mvm_iface_combinations); 561 562 hw->wiphy->max_remain_on_channel_duration = 10000; 563 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 564 565 /* Extract MAC address */ 566 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 567 hw->wiphy->addresses = mvm->addresses; 568 hw->wiphy->n_addresses = 1; 569 570 /* Extract additional MAC addresses if available */ 571 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 572 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 573 574 for (i = 1; i < num_mac; i++) { 575 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 576 ETH_ALEN); 577 mvm->addresses[i].addr[5]++; 578 hw->wiphy->n_addresses++; 579 } 580 581 iwl_mvm_reset_phy_ctxts(mvm); 582 583 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 584 585 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 586 587 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 588 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 589 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 590 591 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 592 mvm->max_scans = IWL_MAX_UMAC_SCANS; 593 else 594 mvm->max_scans = IWL_MAX_LMAC_SCANS; 595 596 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 597 hw->wiphy->bands[NL80211_BAND_2GHZ] = 598 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 599 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 600 hw->wiphy->bands[NL80211_BAND_5GHZ] = 601 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 602 603 if (fw_has_capa(&mvm->fw->ucode_capa, 604 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 605 fw_has_api(&mvm->fw->ucode_capa, 606 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 607 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 608 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 609 } 610 if (fw_has_capa(&mvm->fw->ucode_capa, 611 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 612 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 613 hw->wiphy->bands[NL80211_BAND_6GHZ] = 614 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 615 616 hw->wiphy->hw_version = mvm->trans->info.hw_id; 617 618 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 619 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 620 else 621 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 622 623 hw->wiphy->max_sched_scan_reqs = 1; 624 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 625 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 626 /* we create the 802.11 header and zero length SSID IE. */ 627 hw->wiphy->max_sched_scan_ie_len = 628 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 629 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 630 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 631 632 /* 633 * the firmware uses u8 for num of iterations, but 0xff is saved for 634 * infinite loop, so the maximum number of iterations is actually 254. 635 */ 636 hw->wiphy->max_sched_scan_plan_iterations = 254; 637 638 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 639 NL80211_FEATURE_LOW_PRIORITY_SCAN | 640 NL80211_FEATURE_P2P_GO_OPPPS | 641 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 642 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 643 644 /* when firmware supports RLC/SMPS offload, do not set these 645 * driver features, since it's no longer supported by driver. 646 */ 647 if (!iwl_mvm_has_rlc_offload(mvm)) 648 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS | 649 NL80211_FEATURE_DYNAMIC_SMPS; 650 651 if (fw_has_capa(&mvm->fw->ucode_capa, 652 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 653 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 654 if (fw_has_capa(&mvm->fw->ucode_capa, 655 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 656 hw->wiphy->features |= NL80211_FEATURE_QUIET; 657 658 if (fw_has_capa(&mvm->fw->ucode_capa, 659 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 660 hw->wiphy->features |= 661 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 662 663 if (fw_has_capa(&mvm->fw->ucode_capa, 664 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 665 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 666 667 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 668 IWL_FW_CMD_VER_UNKNOWN) >= 3) 669 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 670 671 if (fw_has_api(&mvm->fw->ucode_capa, 672 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 673 wiphy_ext_feature_set(hw->wiphy, 674 NL80211_EXT_FEATURE_SCAN_START_TIME); 675 wiphy_ext_feature_set(hw->wiphy, 676 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 677 } 678 679 if (iwl_mvm_is_oce_supported(mvm)) { 680 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 681 682 wiphy_ext_feature_set(hw->wiphy, 683 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 684 wiphy_ext_feature_set(hw->wiphy, 685 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 686 wiphy_ext_feature_set(hw->wiphy, 687 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 688 689 /* Old firmware also supports probe deferral and suppression */ 690 if (scan_ver < 15) 691 wiphy_ext_feature_set(hw->wiphy, 692 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 693 } 694 695 hw->wiphy->iftype_ext_capab = NULL; 696 hw->wiphy->num_iftype_ext_capab = 0; 697 698 if (mvm->nvm_data->sku_cap_11ax_enable && 699 !iwlwifi_mod_params.disable_11ax) { 700 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 701 hw->wiphy->num_iftype_ext_capab = 702 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 703 704 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 705 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 706 } 707 708 if (iwl_fw_lookup_cmd_ver(mvm->fw, 709 WIDE_ID(DATA_PATH_GROUP, 710 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 711 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 712 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 713 714 if (!hw->wiphy->iftype_ext_capab) { 715 hw->wiphy->num_iftype_ext_capab = 1; 716 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 717 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 718 } else { 719 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 720 } 721 } 722 723 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 724 TOF_RANGE_REQ_CMD), 725 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 726 wiphy_ext_feature_set(hw->wiphy, 727 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 728 729 if (fw_has_capa(&mvm->fw->ucode_capa, 730 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 731 wiphy_ext_feature_set(hw->wiphy, 732 NL80211_EXT_FEATURE_SECURE_LTF); 733 } 734 735 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 736 737 #ifdef CONFIG_PM_SLEEP 738 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 739 device_can_wakeup(mvm->trans->dev)) { 740 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 741 WIPHY_WOWLAN_DISCONNECT | 742 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 743 WIPHY_WOWLAN_RFKILL_RELEASE | 744 WIPHY_WOWLAN_NET_DETECT; 745 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 746 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 747 WIPHY_WOWLAN_4WAY_HANDSHAKE; 748 749 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 750 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 751 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 752 mvm->wowlan.max_nd_match_sets = 753 iwl_umac_scan_get_max_profiles(mvm->fw); 754 hw->wiphy->wowlan = &mvm->wowlan; 755 } 756 #endif 757 758 ret = iwl_mvm_leds_init(mvm); 759 if (ret) 760 return ret; 761 762 if (fw_has_capa(&mvm->fw->ucode_capa, 763 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 764 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 765 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 766 ieee80211_hw_set(hw, TDLS_WIDER_BW); 767 } 768 769 if (fw_has_capa(&mvm->fw->ucode_capa, 770 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 771 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 772 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 773 } 774 775 hw->netdev_features |= mvm->trans->mac_cfg->base->features; 776 if (!iwl_mvm_is_csum_supported(mvm)) 777 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 778 779 if (mvm->cfg->vht_mu_mimo_supported) 780 wiphy_ext_feature_set(hw->wiphy, 781 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 782 783 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 784 wiphy_ext_feature_set(hw->wiphy, 785 NL80211_EXT_FEATURE_PROTECTED_TWT); 786 787 iwl_mvm_vendor_cmds_register(mvm); 788 789 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 790 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 791 792 ret = ieee80211_register_hw(mvm->hw); 793 if (ret) { 794 iwl_mvm_leds_exit(mvm); 795 } 796 797 return ret; 798 } 799 800 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 801 struct ieee80211_sta *sta) 802 { 803 if (likely(sta)) { 804 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 805 return; 806 } else { 807 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 808 return; 809 } 810 811 ieee80211_free_txskb(mvm->hw, skb); 812 } 813 814 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 815 struct ieee80211_tx_control *control, struct sk_buff *skb) 816 { 817 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 818 struct ieee80211_sta *sta = control->sta; 819 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 820 struct ieee80211_hdr *hdr = (void *)skb->data; 821 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 822 IEEE80211_TX_CTL_TX_OFFCHAN; 823 u32 link_id = u32_get_bits(info->control.flags, 824 IEEE80211_TX_CTRL_MLO_LINK); 825 struct ieee80211_sta *tmp_sta = sta; 826 827 if (iwl_mvm_is_radio_killed(mvm)) { 828 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 829 goto drop; 830 } 831 832 if (offchannel && 833 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) && 834 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 835 goto drop; 836 837 /* 838 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 839 * so we treat the others as broadcast 840 */ 841 if (ieee80211_is_mgmt(hdr->frame_control)) 842 sta = NULL; 843 844 /* this shouldn't even happen: just drop */ 845 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 846 !offchannel) 847 goto drop; 848 849 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 850 !ieee80211_is_probe_resp(hdr->frame_control)) { 851 /* translate MLD addresses to LINK addresses */ 852 struct ieee80211_link_sta *link_sta = 853 rcu_dereference(tmp_sta->link[link_id]); 854 struct ieee80211_bss_conf *link_conf = 855 rcu_dereference(info->control.vif->link_conf[link_id]); 856 struct ieee80211_mgmt *mgmt; 857 858 if (WARN_ON(!link_sta || !link_conf)) 859 goto drop; 860 861 /* if sta is NULL, the frame is a management frame */ 862 mgmt = (void *)hdr; 863 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 864 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 865 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 866 } 867 868 iwl_mvm_tx_skb(mvm, skb, sta); 869 return; 870 drop: 871 ieee80211_free_txskb(hw, skb); 872 } 873 874 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 875 { 876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 877 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 878 struct sk_buff *skb = NULL; 879 880 /* 881 * No need for threads to be pending here, they can leave the first 882 * taker all the work. 883 * 884 * mvmtxq->tx_request logic: 885 * 886 * If 0, no one is currently TXing, set to 1 to indicate current thread 887 * will now start TX and other threads should quit. 888 * 889 * If 1, another thread is currently TXing, set to 2 to indicate to 890 * that thread that there was another request. Since that request may 891 * have raced with the check whether the queue is empty, the TXing 892 * thread should check the queue's status one more time before leaving. 893 * This check is done in order to not leave any TX hanging in the queue 894 * until the next TX invocation (which may not even happen). 895 * 896 * If 2, another thread is currently TXing, and it will already double 897 * check the queue, so do nothing. 898 */ 899 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 900 return; 901 902 rcu_read_lock(); 903 do { 904 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 905 &mvmtxq->state) && 906 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 907 &mvmtxq->state) && 908 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, 909 &mvmtxq->state) && 910 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 911 skb = ieee80211_tx_dequeue(hw, txq); 912 913 if (!skb) { 914 if (txq->sta) 915 IWL_DEBUG_TX(mvm, 916 "TXQ of sta %pM tid %d is now empty\n", 917 txq->sta->addr, 918 txq->tid); 919 break; 920 } 921 922 iwl_mvm_tx_skb(mvm, skb, txq->sta); 923 } 924 } while (atomic_dec_return(&mvmtxq->tx_request)); 925 rcu_read_unlock(); 926 } 927 928 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 929 struct ieee80211_txq *txq) 930 { 931 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 932 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 933 934 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 935 !txq->sta) { 936 iwl_mvm_mac_itxq_xmit(hw, txq); 937 return; 938 } 939 940 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 941 * to handle any packets we leave on the txq now 942 */ 943 944 spin_lock_bh(&mvm->add_stream_lock); 945 /* The list is being deleted only after the queue is fully allocated. */ 946 if (list_empty(&mvmtxq->list) && 947 /* recheck under lock */ 948 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 949 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 950 schedule_work(&mvm->add_stream_wk); 951 } 952 spin_unlock_bh(&mvm->add_stream_lock); 953 } 954 955 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 956 do { \ 957 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 958 break; \ 959 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 960 } while (0) 961 962 static void 963 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 964 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 965 enum ieee80211_ampdu_mlme_action action) 966 { 967 struct iwl_fw_dbg_trigger_tlv *trig; 968 struct iwl_fw_dbg_trigger_ba *ba_trig; 969 970 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 971 FW_DBG_TRIGGER_BA); 972 if (!trig) 973 return; 974 975 ba_trig = (void *)trig->data; 976 977 switch (action) { 978 case IEEE80211_AMPDU_TX_OPERATIONAL: { 979 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 980 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 981 982 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 983 "TX AGG START: MAC %pM tid %d ssn %d\n", 984 sta->addr, tid, tid_data->ssn); 985 break; 986 } 987 case IEEE80211_AMPDU_TX_STOP_CONT: 988 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 989 "TX AGG STOP: MAC %pM tid %d\n", 990 sta->addr, tid); 991 break; 992 case IEEE80211_AMPDU_RX_START: 993 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 994 "RX AGG START: MAC %pM tid %d ssn %d\n", 995 sta->addr, tid, rx_ba_ssn); 996 break; 997 case IEEE80211_AMPDU_RX_STOP: 998 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 999 "RX AGG STOP: MAC %pM tid %d\n", 1000 sta->addr, tid); 1001 break; 1002 default: 1003 break; 1004 } 1005 } 1006 1007 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1008 struct ieee80211_vif *vif, 1009 struct ieee80211_ampdu_params *params) 1010 { 1011 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1012 int ret; 1013 struct ieee80211_sta *sta = params->sta; 1014 enum ieee80211_ampdu_mlme_action action = params->action; 1015 u16 tid = params->tid; 1016 u16 *ssn = ¶ms->ssn; 1017 u16 buf_size = params->buf_size; 1018 bool amsdu = params->amsdu; 1019 u16 timeout = params->timeout; 1020 1021 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1022 sta->addr, tid, action); 1023 1024 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1025 return -EACCES; 1026 1027 mutex_lock(&mvm->mutex); 1028 1029 switch (action) { 1030 case IEEE80211_AMPDU_RX_START: 1031 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1032 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1033 struct iwl_mvm_vif *mvmvif; 1034 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1035 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1036 1037 mdata->opened_rx_ba_sessions = true; 1038 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1039 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1040 } 1041 if (!iwl_enable_rx_ampdu()) { 1042 ret = -EINVAL; 1043 break; 1044 } 1045 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1046 timeout); 1047 break; 1048 case IEEE80211_AMPDU_RX_STOP: 1049 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1050 timeout); 1051 break; 1052 case IEEE80211_AMPDU_TX_START: 1053 if (!iwl_enable_tx_ampdu()) { 1054 ret = -EINVAL; 1055 break; 1056 } 1057 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1058 break; 1059 case IEEE80211_AMPDU_TX_STOP_CONT: 1060 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1061 break; 1062 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1063 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1064 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1065 break; 1066 case IEEE80211_AMPDU_TX_OPERATIONAL: 1067 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1068 buf_size, amsdu); 1069 break; 1070 default: 1071 WARN_ON_ONCE(1); 1072 ret = -EINVAL; 1073 break; 1074 } 1075 1076 if (!ret) { 1077 u16 rx_ba_ssn = 0; 1078 1079 if (action == IEEE80211_AMPDU_RX_START) 1080 rx_ba_ssn = *ssn; 1081 1082 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1083 rx_ba_ssn, action); 1084 } 1085 mutex_unlock(&mvm->mutex); 1086 1087 return ret; 1088 } 1089 1090 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1091 struct ieee80211_vif *vif) 1092 { 1093 struct iwl_mvm *mvm = data; 1094 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1095 struct iwl_probe_resp_data *probe_data; 1096 unsigned int link_id; 1097 1098 mvmvif->uploaded = false; 1099 1100 spin_lock_bh(&mvm->time_event_lock); 1101 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1102 spin_unlock_bh(&mvm->time_event_lock); 1103 1104 mvmvif->roc_activity = ROC_NUM_ACTIVITIES; 1105 1106 mvmvif->bf_enabled = false; 1107 mvmvif->ba_enabled = false; 1108 mvmvif->ap_sta = NULL; 1109 1110 mvmvif->esr_active = false; 1111 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE; 1112 1113 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1114 mvmvif->link[link_id]->ap_sta_id = IWL_INVALID_STA; 1115 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1116 mvmvif->link[link_id]->phy_ctxt = NULL; 1117 mvmvif->link[link_id]->active = 0; 1118 mvmvif->link[link_id]->igtk = NULL; 1119 memset(&mvmvif->link[link_id]->bf_data, 0, 1120 sizeof(mvmvif->link[link_id]->bf_data)); 1121 } 1122 1123 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1124 lockdep_is_held(&mvm->mutex)); 1125 if (probe_data) 1126 kfree_rcu(probe_data, rcu_head); 1127 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1128 } 1129 1130 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1131 { 1132 struct iwl_mvm *mvm = data; 1133 struct iwl_mvm_sta *mvm_sta; 1134 struct ieee80211_vif *vif; 1135 int link_id; 1136 1137 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1138 vif = mvm_sta->vif; 1139 1140 if (!sta->valid_links) 1141 return; 1142 1143 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1144 struct iwl_mvm_link_sta *mvm_link_sta; 1145 1146 mvm_link_sta = 1147 rcu_dereference_check(mvm_sta->link[link_id], 1148 lockdep_is_held(&mvm->mutex)); 1149 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1150 /* 1151 * We have a link STA but the link is inactive in 1152 * mac80211. This will happen if we failed to 1153 * deactivate the link but mac80211 roll back the 1154 * deactivation of the link. 1155 * Delete the stale data to avoid issues later on. 1156 */ 1157 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1158 link_id); 1159 } 1160 } 1161 } 1162 1163 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1164 { 1165 iwl_mvm_stop_device(mvm); 1166 1167 mvm->cur_aid = 0; 1168 1169 mvm->scan_status = 0; 1170 mvm->ps_disabled = false; 1171 mvm->rfkill_safe_init_done = false; 1172 1173 /* just in case one was running */ 1174 iwl_mvm_cleanup_roc_te(mvm); 1175 ieee80211_remain_on_channel_expired(mvm->hw); 1176 1177 iwl_mvm_ftm_restart(mvm); 1178 1179 /* 1180 * cleanup all interfaces, even inactive ones, as some might have 1181 * gone down during the HW restart 1182 */ 1183 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1184 1185 /* cleanup stations as links may be gone after restart */ 1186 ieee80211_iterate_stations_atomic(mvm->hw, 1187 iwl_mvm_cleanup_sta_iterator, mvm); 1188 1189 mvm->p2p_device_vif = NULL; 1190 1191 iwl_mvm_reset_phy_ctxts(mvm); 1192 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1193 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1194 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1195 1196 ieee80211_wake_queues(mvm->hw); 1197 1198 mvm->rx_ba_sessions = 0; 1199 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1200 mvm->monitor_on = false; 1201 #ifdef CONFIG_IWLWIFI_DEBUGFS 1202 mvm->beacon_inject_active = false; 1203 #endif 1204 1205 /* keep statistics ticking */ 1206 iwl_mvm_accu_radio_stats(mvm); 1207 } 1208 1209 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1210 { 1211 bool fast_resume = false; 1212 int ret; 1213 1214 lockdep_assert_held(&mvm->mutex); 1215 1216 ret = iwl_mvm_mei_get_ownership(mvm); 1217 if (ret) 1218 return ret; 1219 1220 if (mvm->mei_nvm_data) { 1221 /* We got the NIC, we can now free the MEI NVM data */ 1222 kfree(mvm->mei_nvm_data); 1223 mvm->mei_nvm_data = NULL; 1224 1225 /* 1226 * We can't free the nvm_data we allocated based on the SAP 1227 * data because we registered to cfg80211 with the channels 1228 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1229 * just in order to be able free it later. 1230 * NULLify nvm_data so that we will read the NVM from the 1231 * firmware this time. 1232 */ 1233 mvm->temp_nvm_data = mvm->nvm_data; 1234 mvm->nvm_data = NULL; 1235 } 1236 1237 #ifdef CONFIG_PM_SLEEP 1238 /* fast_resume will be cleared by iwl_mvm_fast_resume */ 1239 fast_resume = mvm->fast_resume; 1240 1241 if (fast_resume) { 1242 iwl_mvm_mei_device_state(mvm, true); 1243 ret = iwl_mvm_fast_resume(mvm); 1244 if (ret) { 1245 iwl_mvm_stop_device(mvm); 1246 /* iwl_mvm_up() will be called further down */ 1247 } else { 1248 /* 1249 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon 1250 * mac_down() so that debugfs will stop honoring 1251 * requests after we flush all the workers. 1252 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again 1253 * now that we are back. This is a bit abusing the 1254 * flag since the firmware wasn't really ever stopped, 1255 * but this still serves the purpose. 1256 */ 1257 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1258 } 1259 } 1260 #endif /* CONFIG_PM_SLEEP */ 1261 1262 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1263 /* 1264 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1265 * so later code will - from now on - see that we're doing it. 1266 */ 1267 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1268 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1269 /* Clean up some internal and mac80211 state on restart */ 1270 iwl_mvm_restart_cleanup(mvm); 1271 } 1272 1273 /* we also want to load the firmware if fast_resume failed */ 1274 if (!fast_resume || ret) 1275 ret = iwl_mvm_up(mvm); 1276 1277 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1278 NULL); 1279 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1280 NULL); 1281 1282 mvm->last_reset_or_resume_time_jiffies = jiffies; 1283 1284 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1285 /* Something went wrong - we need to finish some cleanup 1286 * that normally iwl_mvm_mac_restart_complete() below 1287 * would do. 1288 */ 1289 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1290 } 1291 1292 return ret; 1293 } 1294 1295 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1296 { 1297 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1298 int ret; 1299 int retry, max_retry = 0; 1300 1301 mutex_lock(&mvm->mutex); 1302 1303 /* we are starting the mac not in error flow, and restart is enabled */ 1304 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1305 iwlwifi_mod_params.fw_restart) 1306 max_retry = IWL_MAX_INIT_RETRY; 1307 1308 for (retry = 0; retry <= max_retry; retry++) { 1309 ret = __iwl_mvm_mac_start(mvm); 1310 if (ret != -ETIMEDOUT) 1311 break; 1312 1313 IWL_ERR(mvm, "mac start retry %d\n", retry); 1314 } 1315 1316 mutex_unlock(&mvm->mutex); 1317 1318 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1319 1320 return ret; 1321 } 1322 1323 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1324 { 1325 int ret; 1326 1327 guard(mvm)(mvm); 1328 1329 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1330 1331 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1332 if (ret) 1333 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1334 ret); 1335 1336 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1337 1338 /* 1339 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1340 * of packets the FW sent out, so we must reconnect. 1341 */ 1342 iwl_mvm_teardown_tdls_peers(mvm); 1343 1344 IWL_INFO(mvm, "restart completed\n"); 1345 iwl_trans_finish_sw_reset(mvm->trans); 1346 1347 /* no need to lock, adding in parallel would schedule too */ 1348 if (!list_empty(&mvm->add_stream_txqs)) 1349 schedule_work(&mvm->add_stream_wk); 1350 } 1351 1352 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1353 enum ieee80211_reconfig_type reconfig_type) 1354 { 1355 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1356 1357 switch (reconfig_type) { 1358 case IEEE80211_RECONFIG_TYPE_RESTART: 1359 iwl_mvm_restart_complete(mvm); 1360 break; 1361 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1362 break; 1363 } 1364 } 1365 1366 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend) 1367 { 1368 lockdep_assert_held(&mvm->mutex); 1369 1370 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1371 1372 /* firmware counters are obviously reset now, but we shouldn't 1373 * partially track so also clear the fw_reset_accu counters. 1374 */ 1375 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1376 1377 /* async_handlers_wk is now blocked */ 1378 1379 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1380 iwl_mvm_rm_aux_sta(mvm); 1381 1382 if (suspend && 1383 mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 1384 iwl_mvm_fast_suspend(mvm); 1385 /* From this point on, we won't touch the device */ 1386 iwl_mvm_mei_device_state(mvm, false); 1387 } else { 1388 iwl_mvm_stop_device(mvm); 1389 } 1390 1391 iwl_mvm_async_handlers_purge(mvm); 1392 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1393 1394 /* 1395 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1396 * hw (as restart_complete() won't be called in this case) and mac80211 1397 * won't execute the restart. 1398 * But make sure to cleanup interfaces that have gone down before/during 1399 * HW restart was requested. 1400 */ 1401 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1402 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1403 &mvm->status)) 1404 ieee80211_iterate_interfaces(mvm->hw, 0, 1405 iwl_mvm_cleanup_iterator, mvm); 1406 1407 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1408 * make sure there's nothing left there and warn if any is found. 1409 */ 1410 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1411 int i; 1412 1413 for (i = 0; i < mvm->max_scans; i++) { 1414 if (WARN_ONCE(mvm->scan_uid_status[i], 1415 "UMAC scan UID %d status was not cleaned\n", 1416 i)) 1417 mvm->scan_uid_status[i] = 0; 1418 } 1419 } 1420 } 1421 1422 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend) 1423 { 1424 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1425 1426 /* Stop internal MLO scan, if running */ 1427 mutex_lock(&mvm->mutex); 1428 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1429 mutex_unlock(&mvm->mutex); 1430 1431 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk); 1432 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1433 flush_work(&mvm->async_handlers_wk); 1434 flush_work(&mvm->add_stream_wk); 1435 1436 /* 1437 * Lock and clear the firmware running bit here already, so that 1438 * new commands coming in elsewhere, e.g. from debugfs, will not 1439 * be able to proceed. This is important here because one of those 1440 * debugfs files causes the firmware dump to be triggered, and if we 1441 * don't stop debugfs accesses before canceling that it could be 1442 * retriggered after we flush it but before we've cleared the bit. 1443 */ 1444 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1445 1446 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1447 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1448 1449 /* 1450 * The work item could be running or queued if the 1451 * ROC time event stops just as we get here. 1452 */ 1453 flush_work(&mvm->roc_done_wk); 1454 1455 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1456 1457 mutex_lock(&mvm->mutex); 1458 __iwl_mvm_mac_stop(mvm, suspend); 1459 mutex_unlock(&mvm->mutex); 1460 1461 /* 1462 * The worker might have been waiting for the mutex, let it run and 1463 * discover that its list is now empty. 1464 */ 1465 cancel_work_sync(&mvm->async_handlers_wk); 1466 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1467 } 1468 1469 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1470 { 1471 u16 i; 1472 1473 lockdep_assert_held(&mvm->mutex); 1474 1475 for (i = 0; i < NUM_PHY_CTX; i++) 1476 if (!mvm->phy_ctxts[i].ref) 1477 return &mvm->phy_ctxts[i]; 1478 1479 IWL_ERR(mvm, "No available PHY context\n"); 1480 return NULL; 1481 } 1482 1483 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, 1484 struct ieee80211_bss_conf *link_conf, 1485 s16 tx_power) 1486 { 1487 u32 cmd_id = REDUCE_TX_POWER_CMD; 1488 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(link_conf->vif); 1489 u32 mac_id = mvmvif->id; 1490 int len; 1491 struct iwl_dev_tx_power_cmd_v3_v8 cmd = { 1492 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK), 1493 .common.link_id = cpu_to_le32(mac_id), 1494 }; 1495 struct iwl_dev_tx_power_cmd cmd_v9_v10; 1496 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3); 1497 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ? 1498 IWL_DEV_MAX_TX_POWER : 8 * tx_power; 1499 void *cmd_data = &cmd; 1500 1501 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power); 1502 1503 if (cmd_ver > 8) { 1504 u32 link_id; 1505 1506 if (WARN_ON(!mvmvif->link[link_conf->link_id])) 1507 return -ENODEV; 1508 1509 link_id = mvmvif->link[link_conf->link_id]->fw_link_id; 1510 1511 /* Those fields sit on the same place for v9 and v10 */ 1512 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK); 1513 cmd_v9_v10.common.link_id = cpu_to_le32(link_id); 1514 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power); 1515 cmd_data = &cmd_v9_v10; 1516 } 1517 1518 if (cmd_ver == 10) 1519 len = sizeof(cmd_v9_v10.v10); 1520 else if (cmd_ver == 9) 1521 len = sizeof(cmd_v9_v10.v9); 1522 else if (cmd_ver == 8) 1523 len = sizeof(cmd.v8); 1524 else if (cmd_ver == 7) 1525 len = sizeof(cmd.v7); 1526 else if (cmd_ver == 6) 1527 len = sizeof(cmd.v6); 1528 else if (fw_has_api(&mvm->fw->ucode_capa, 1529 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1530 len = sizeof(cmd.v5); 1531 else if (fw_has_capa(&mvm->fw->ucode_capa, 1532 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1533 len = sizeof(cmd.v4); 1534 else 1535 len = sizeof(cmd.v3); 1536 1537 /* all structs have the same common part, add its length */ 1538 len += sizeof(cmd.common); 1539 1540 if (cmd_ver < 9) 1541 len += sizeof(cmd.per_band); 1542 1543 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data); 1544 1545 } 1546 1547 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1548 { 1549 struct ieee80211_hw *hw = data; 1550 int i; 1551 1552 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1553 struct iwl_mvm_txq *mvmtxq = 1554 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1555 1556 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1557 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1558 } 1559 } 1560 1561 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1562 struct ieee80211_vif *vif, 1563 struct ieee80211_bss_conf *link_conf) 1564 { 1565 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1566 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1567 int ret; 1568 1569 mutex_lock(&mvm->mutex); 1570 1571 if (vif->type == NL80211_IFTYPE_STATION) { 1572 struct iwl_mvm_sta *mvmsta; 1573 unsigned int link_id = link_conf->link_id; 1574 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1575 1576 mvmvif->csa_bcn_pending = false; 1577 mvmvif->csa_blocks_tx = false; 1578 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1579 1580 if (WARN_ON(!mvmsta)) { 1581 ret = -EIO; 1582 goto out_unlock; 1583 } 1584 1585 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1586 if (mvm->mld_api_is_used) 1587 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1588 else 1589 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1590 1591 if (!fw_has_capa(&mvm->fw->ucode_capa, 1592 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1593 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1594 if (ret) 1595 goto out_unlock; 1596 1597 iwl_mvm_stop_session_protection(mvm, vif); 1598 } 1599 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1600 struct iwl_mvm_txq *mvmtxq = 1601 iwl_mvm_txq_from_mac80211(vif->txq); 1602 1603 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1604 1605 local_bh_disable(); 1606 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1607 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1608 local_bh_enable(); 1609 1610 mvmvif->csa_blocks_tx = false; 1611 } 1612 1613 mvmvif->ps_disabled = false; 1614 1615 ret = iwl_mvm_power_update_ps(mvm); 1616 1617 out_unlock: 1618 if (mvmvif->csa_failed) 1619 ret = -EIO; 1620 mutex_unlock(&mvm->mutex); 1621 1622 return ret; 1623 } 1624 1625 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1626 struct ieee80211_vif *vif, 1627 struct ieee80211_bss_conf *link_conf) 1628 { 1629 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1630 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1631 struct iwl_chan_switch_te_cmd cmd = { 1632 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1633 mvmvif->color)), 1634 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1635 }; 1636 1637 /* 1638 * In the new flow since FW is in charge of the timing, 1639 * if driver has canceled the channel switch he will receive the 1640 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1641 */ 1642 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1643 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1644 return; 1645 1646 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1647 1648 mutex_lock(&mvm->mutex); 1649 if (!fw_has_capa(&mvm->fw->ucode_capa, 1650 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1651 iwl_mvm_remove_csa_period(mvm, vif); 1652 else 1653 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1654 WIDE_ID(MAC_CONF_GROUP, 1655 CHANNEL_SWITCH_TIME_EVENT_CMD), 1656 0, sizeof(cmd), &cmd)); 1657 mvmvif->csa_failed = true; 1658 mutex_unlock(&mvm->mutex); 1659 1660 /* If we're here, we can't support MLD */ 1661 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1662 } 1663 1664 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1665 { 1666 struct iwl_mvm_vif *mvmvif; 1667 struct ieee80211_vif *vif; 1668 1669 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1670 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1671 1672 /* Trigger disconnect (should clear the CSA state) */ 1673 ieee80211_chswitch_done(vif, false, 0); 1674 } 1675 1676 static u8 1677 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1678 { 1679 int data_start; 1680 int control_start; 1681 int bw; 1682 1683 if (chandef->width == NL80211_CHAN_WIDTH_320) 1684 bw = 320; 1685 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1686 bw = 160; 1687 else 1688 return 0; 1689 1690 /* data is bw wide so the start is half the width */ 1691 data_start = chandef->center_freq1 - bw / 2; 1692 /* control is 20Mhz width */ 1693 control_start = chandef->chan->center_freq - 10; 1694 1695 return (control_start - data_start) / 80; 1696 } 1697 1698 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1699 struct ieee80211_vif *vif) 1700 { 1701 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1702 int ret; 1703 1704 lockdep_assert_held(&mvm->mutex); 1705 1706 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1707 if (ret) { 1708 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1709 return ret; 1710 } 1711 1712 /* Only queue for this station is the mcast queue, 1713 * which shouldn't be in TFD mask anyway 1714 */ 1715 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1716 vif->type, 1717 IWL_STA_MULTICAST); 1718 } 1719 1720 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy, 1721 struct wiphy_work *wk) 1722 { 1723 struct iwl_mvm_vif *mvmvif = 1724 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work); 1725 struct iwl_mvm *mvm = mvmvif->mvm; 1726 struct ieee80211_vif *vif = 1727 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1728 1729 guard(mvm)(mvm); 1730 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION); 1731 } 1732 1733 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) 1734 { 1735 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif, 1736 mlo_int_scan_wk.work); 1737 struct ieee80211_vif *vif = 1738 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1739 1740 guard(mvm)(mvmvif->mvm); 1741 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif); 1742 } 1743 1744 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) 1745 { 1746 struct iwl_mvm_vif *mvmvif = 1747 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); 1748 struct iwl_mvm *mvm = mvmvif->mvm; 1749 struct ieee80211_vif *vif = 1750 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1751 1752 guard(mvm)(mvm); 1753 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); 1754 } 1755 1756 static void iwl_mvm_unblock_esr_tmp_non_bss(struct wiphy *wiphy, 1757 struct wiphy_work *wk) 1758 { 1759 struct iwl_mvm_vif *mvmvif = 1760 container_of(wk, struct iwl_mvm_vif, 1761 unblock_esr_tmp_non_bss_wk.work); 1762 struct iwl_mvm *mvm = mvmvif->mvm; 1763 struct ieee80211_vif *vif = 1764 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1765 1766 mutex_lock(&mvm->mutex); 1767 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TMP_NON_BSS); 1768 mutex_unlock(&mvm->mutex); 1769 } 1770 1771 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1772 { 1773 lockdep_assert_held(&mvm->mutex); 1774 1775 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1776 return; 1777 1778 INIT_DELAYED_WORK(&mvmvif->csa_work, 1779 iwl_mvm_channel_switch_disconnect_wk); 1780 1781 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk, 1782 iwl_mvm_prevent_esr_done_wk); 1783 1784 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, 1785 iwl_mvm_mlo_int_scan_wk); 1786 1787 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, 1788 iwl_mvm_unblock_esr_tpt); 1789 1790 wiphy_delayed_work_init(&mvmvif->unblock_esr_tmp_non_bss_wk, 1791 iwl_mvm_unblock_esr_tmp_non_bss); 1792 } 1793 1794 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1795 struct ieee80211_vif *vif) 1796 { 1797 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1798 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1799 int ret; 1800 int i; 1801 1802 mutex_lock(&mvm->mutex); 1803 1804 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1805 1806 mvmvif->mvm = mvm; 1807 1808 /* the first link always points to the default one */ 1809 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1810 mvmvif->deflink.active = 0; 1811 mvmvif->link[0] = &mvmvif->deflink; 1812 1813 vif->driver_flags = IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC; 1814 1815 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1816 if (ret) 1817 goto out; 1818 1819 /* 1820 * Not much to do here. The stack will not allow interface 1821 * types or combinations that we didn't advertise, so we 1822 * don't really have to check the types. 1823 */ 1824 1825 /* make sure that beacon statistics don't go backwards with FW reset */ 1826 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1827 for_each_mvm_vif_valid_link(mvmvif, i) 1828 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1829 mvmvif->link[i]->beacon_stats.num_beacons; 1830 1831 /* Allocate resources for the MAC context, and add it to the fw */ 1832 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1833 if (ret) 1834 goto out; 1835 1836 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1837 1838 /* Currently not much to do for NAN */ 1839 if (vif->type == NL80211_IFTYPE_NAN) { 1840 ret = 0; 1841 goto out; 1842 } 1843 1844 /* 1845 * The AP binding flow can be done only after the beacon 1846 * template is configured (which happens only in the mac80211 1847 * start_ap() flow), and adding the broadcast station can happen 1848 * only after the binding. 1849 * In addition, since modifying the MAC before adding a bcast 1850 * station is not allowed by the FW, delay the adding of MAC context to 1851 * the point where we can also add the bcast station. 1852 * In short: there's not much we can do at this point, other than 1853 * allocating resources :) 1854 */ 1855 if (vif->type == NL80211_IFTYPE_AP || 1856 vif->type == NL80211_IFTYPE_ADHOC) { 1857 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1858 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1859 ret = 0; 1860 goto out; 1861 } 1862 1863 mvmvif->features |= hw->netdev_features; 1864 1865 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1866 if (ret) 1867 goto out_unlock; 1868 1869 ret = iwl_mvm_power_update_mac(mvm); 1870 if (ret) 1871 goto out_remove_mac; 1872 1873 /* beacon filtering */ 1874 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1875 if (ret) 1876 goto out_remove_mac; 1877 1878 if (!mvm->bf_allowed_vif && 1879 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1880 mvm->bf_allowed_vif = mvmvif; 1881 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1882 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1883 } 1884 1885 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1886 mvm->p2p_device_vif = vif; 1887 1888 iwl_mvm_tcm_add_vif(mvm, vif); 1889 1890 if (vif->type == NL80211_IFTYPE_MONITOR) { 1891 mvm->monitor_on = true; 1892 mvm->monitor_p80 = 1893 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1894 } 1895 1896 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1897 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1898 1899 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1900 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1901 !mvm->csme_vif && mvm->mei_registered) { 1902 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1903 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1904 mvm->csme_vif = vif; 1905 } 1906 1907 out: 1908 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1909 vif->type == NL80211_IFTYPE_ADHOC)) 1910 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1911 1912 goto out_unlock; 1913 1914 out_remove_mac: 1915 mvmvif->deflink.phy_ctxt = NULL; 1916 iwl_mvm_mac_ctxt_remove(mvm, vif); 1917 out_unlock: 1918 mutex_unlock(&mvm->mutex); 1919 1920 return ret; 1921 } 1922 1923 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1924 struct ieee80211_vif *vif) 1925 { 1926 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1927 1928 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1929 /* 1930 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1931 * We assume here that all the packets sent to the OFFCHANNEL 1932 * queue are sent in ROC session. 1933 */ 1934 flush_work(&mvm->roc_done_wk); 1935 } 1936 1937 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1938 &mvmvif->prevent_esr_done_wk); 1939 1940 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1941 &mvmvif->mlo_int_scan_wk); 1942 1943 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 1944 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1945 &mvmvif->unblock_esr_tmp_non_bss_wk); 1946 1947 cancel_delayed_work_sync(&mvmvif->csa_work); 1948 } 1949 1950 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1951 struct ieee80211_vif *vif) 1952 { 1953 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1954 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1955 struct iwl_probe_resp_data *probe_data; 1956 1957 iwl_mvm_prepare_mac_removal(mvm, vif); 1958 1959 if (!(vif->type == NL80211_IFTYPE_AP || 1960 vif->type == NL80211_IFTYPE_ADHOC)) 1961 iwl_mvm_tcm_rm_vif(mvm, vif); 1962 1963 mutex_lock(&mvm->mutex); 1964 1965 if (vif == mvm->csme_vif) { 1966 iwl_mei_set_netdev(NULL); 1967 mvm->csme_vif = NULL; 1968 } 1969 1970 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1971 lockdep_is_held(&mvm->mutex)); 1972 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1973 if (probe_data) 1974 kfree_rcu(probe_data, rcu_head); 1975 1976 if (mvm->bf_allowed_vif == mvmvif) { 1977 mvm->bf_allowed_vif = NULL; 1978 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1979 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1980 } 1981 1982 if (vif->bss_conf.ftm_responder) 1983 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1984 1985 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1986 1987 /* 1988 * For AP/GO interface, the tear down of the resources allocated to the 1989 * interface is be handled as part of the stop_ap flow. 1990 */ 1991 if (vif->type == NL80211_IFTYPE_AP || 1992 vif->type == NL80211_IFTYPE_ADHOC) 1993 goto out; 1994 1995 iwl_mvm_power_update_mac(mvm); 1996 1997 /* Before the interface removal, mac80211 would cancel the ROC, and the 1998 * ROC worker would be scheduled if needed. The worker would be flushed 1999 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 2000 * binding etc. so nothing needs to be done here. 2001 */ 2002 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2003 if (mvmvif->deflink.phy_ctxt) { 2004 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 2005 mvmvif->deflink.phy_ctxt = NULL; 2006 } 2007 mvm->p2p_device_vif = NULL; 2008 } 2009 2010 iwl_mvm_mac_ctxt_remove(mvm, vif); 2011 2012 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 2013 2014 if (vif->type == NL80211_IFTYPE_MONITOR) 2015 mvm->monitor_on = false; 2016 2017 out: 2018 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 2019 if (vif->type == NL80211_IFTYPE_AP || 2020 vif->type == NL80211_IFTYPE_ADHOC) { 2021 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 2022 iwl_mvm_dealloc_bcast_sta(mvm, vif); 2023 } 2024 2025 mutex_unlock(&mvm->mutex); 2026 } 2027 2028 struct iwl_mvm_mc_iter_data { 2029 struct iwl_mvm *mvm; 2030 int port_id; 2031 }; 2032 2033 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 2034 struct ieee80211_vif *vif) 2035 { 2036 struct iwl_mvm_mc_iter_data *data = _data; 2037 struct iwl_mvm *mvm = data->mvm; 2038 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 2039 struct iwl_host_cmd hcmd = { 2040 .id = MCAST_FILTER_CMD, 2041 .flags = CMD_ASYNC, 2042 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 2043 }; 2044 int ret, len; 2045 2046 /* if we don't have free ports, mcast frames will be dropped */ 2047 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 2048 return; 2049 2050 if (vif->type != NL80211_IFTYPE_STATION || 2051 !vif->cfg.assoc) 2052 return; 2053 2054 cmd->port_id = data->port_id++; 2055 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 2056 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 2057 2058 hcmd.len[0] = len; 2059 hcmd.data[0] = cmd; 2060 2061 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2062 if (ret) 2063 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 2064 } 2065 2066 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 2067 { 2068 struct iwl_mvm_mc_iter_data iter_data = { 2069 .mvm = mvm, 2070 }; 2071 int ret; 2072 2073 lockdep_assert_held(&mvm->mutex); 2074 2075 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 2076 return; 2077 2078 ieee80211_iterate_active_interfaces_atomic( 2079 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2080 iwl_mvm_mc_iface_iterator, &iter_data); 2081 2082 /* 2083 * Send a (synchronous) ech command so that we wait for the 2084 * multiple asynchronous MCAST_FILTER_CMD commands sent by 2085 * the interface iterator. Otherwise, we might get here over 2086 * and over again (by userspace just sending a lot of these) 2087 * and the CPU can send them faster than the firmware can 2088 * process them. 2089 * Note that the CPU is still faster - but with this we'll 2090 * actually send fewer commands overall because the CPU will 2091 * not schedule the work in mac80211 as frequently if it's 2092 * still running when rescheduled (possibly multiple times). 2093 */ 2094 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2095 if (ret) 2096 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2097 } 2098 2099 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2100 struct netdev_hw_addr_list *mc_list) 2101 { 2102 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2103 struct iwl_mcast_filter_cmd *cmd; 2104 struct netdev_hw_addr *addr; 2105 int addr_count; 2106 bool pass_all; 2107 int len; 2108 2109 addr_count = netdev_hw_addr_list_count(mc_list); 2110 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2111 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2112 if (pass_all) 2113 addr_count = 0; 2114 2115 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2116 cmd = kzalloc(len, GFP_ATOMIC); 2117 if (!cmd) 2118 return 0; 2119 2120 if (pass_all) { 2121 cmd->pass_all = 1; 2122 return (u64)(unsigned long)cmd; 2123 } 2124 2125 netdev_hw_addr_list_for_each(addr, mc_list) { 2126 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2127 cmd->count, addr->addr); 2128 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2129 addr->addr, ETH_ALEN); 2130 cmd->count++; 2131 } 2132 2133 return (u64)(unsigned long)cmd; 2134 } 2135 2136 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2137 unsigned int changed_flags, 2138 unsigned int *total_flags, u64 multicast) 2139 { 2140 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2141 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2142 2143 guard(mvm)(mvm); 2144 2145 /* replace previous configuration */ 2146 kfree(mvm->mcast_filter_cmd); 2147 mvm->mcast_filter_cmd = cmd; 2148 2149 if (!cmd) 2150 goto out; 2151 2152 if (changed_flags & FIF_ALLMULTI) 2153 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2154 2155 if (cmd->pass_all) 2156 cmd->count = 0; 2157 2158 iwl_mvm_recalc_multicast(mvm); 2159 out: 2160 *total_flags = 0; 2161 } 2162 2163 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2164 struct ieee80211_vif *vif, 2165 unsigned int filter_flags, 2166 unsigned int changed_flags) 2167 { 2168 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2169 2170 /* We support only filter for probe requests */ 2171 if (!(changed_flags & FIF_PROBE_REQ)) 2172 return; 2173 2174 /* Supported only for p2p client interfaces */ 2175 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2176 !vif->p2p) 2177 return; 2178 2179 guard(mvm)(mvm); 2180 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2181 } 2182 2183 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2184 { 2185 struct iwl_mu_group_mgmt_cmd cmd = {}; 2186 2187 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2188 WLAN_MEMBERSHIP_LEN); 2189 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2190 WLAN_USER_POSITION_LEN); 2191 2192 return iwl_mvm_send_cmd_pdu(mvm, 2193 WIDE_ID(DATA_PATH_GROUP, 2194 UPDATE_MU_GROUPS_CMD), 2195 0, sizeof(cmd), &cmd); 2196 } 2197 2198 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2199 struct ieee80211_vif *vif) 2200 { 2201 if (vif->bss_conf.mu_mimo_owner) { 2202 struct iwl_mu_group_mgmt_notif *notif = _data; 2203 2204 /* 2205 * MU-MIMO Group Id action frame is little endian. We treat 2206 * the data received from firmware as if it came from the 2207 * action frame, so no conversion is needed. 2208 */ 2209 ieee80211_update_mu_groups(vif, 0, 2210 (u8 *)¬if->membership_status, 2211 (u8 *)¬if->user_position); 2212 } 2213 } 2214 2215 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2216 struct iwl_rx_cmd_buffer *rxb) 2217 { 2218 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2219 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2220 2221 ieee80211_iterate_active_interfaces_atomic( 2222 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2223 iwl_mvm_mu_mimo_iface_iterator, notif); 2224 } 2225 2226 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2227 { 2228 u8 byte_num = ppe_pos_bit / 8; 2229 u8 bit_num = ppe_pos_bit % 8; 2230 u8 residue_bits; 2231 u8 res; 2232 2233 if (bit_num <= 5) 2234 return (ppe[byte_num] >> bit_num) & 2235 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2236 2237 /* 2238 * If bit_num > 5, we have to combine bits with next byte. 2239 * Calculate how many bits we need to take from current byte (called 2240 * here "residue_bits"), and add them to bits from next byte. 2241 */ 2242 2243 residue_bits = 8 - bit_num; 2244 2245 res = (ppe[byte_num + 1] & 2246 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2247 residue_bits; 2248 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2249 2250 return res; 2251 } 2252 2253 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2254 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2255 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2256 bool inheritance) 2257 { 2258 int i; 2259 2260 /* 2261 * FW currently supports only nss == MAX_HE_SUPP_NSS 2262 * 2263 * If nss > MAX: we can ignore values we don't support 2264 * If nss < MAX: we can set zeros in other streams 2265 */ 2266 if (nss > MAX_HE_SUPP_NSS) { 2267 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2268 MAX_HE_SUPP_NSS); 2269 nss = MAX_HE_SUPP_NSS; 2270 } 2271 2272 for (i = 0; i < nss; i++) { 2273 u8 ru_index_tmp = ru_index_bitmap << 1; 2274 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2275 u8 bw; 2276 2277 for (bw = 0; 2278 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2279 bw++) { 2280 ru_index_tmp >>= 1; 2281 2282 /* 2283 * According to the 11be spec, if for a specific BW the PPE Thresholds 2284 * isn't present - it should inherit the thresholds from the last 2285 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2286 * this inheritance - continue in this case 2287 */ 2288 if (!(ru_index_tmp & 1)) { 2289 if (inheritance) 2290 goto set_thresholds; 2291 else 2292 continue; 2293 } 2294 2295 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2296 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2297 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2298 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2299 2300 set_thresholds: 2301 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2302 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2303 } 2304 } 2305 } 2306 2307 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2308 struct ieee80211_link_sta *link_sta, 2309 struct iwl_he_pkt_ext_v2 *pkt_ext, 2310 bool inheritance) 2311 { 2312 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2313 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2314 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2315 u8 ru_index_bitmap = 2316 u8_get_bits(*ppe, 2317 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2318 /* Starting after PPE header */ 2319 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2320 2321 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2322 inheritance); 2323 } 2324 2325 static int 2326 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2327 u8 nominal_padding) 2328 { 2329 int low_th = -1; 2330 int high_th = -1; 2331 int i; 2332 2333 /* all the macros are the same for EHT and HE */ 2334 switch (nominal_padding) { 2335 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2336 low_th = IWL_HE_PKT_EXT_NONE; 2337 high_th = IWL_HE_PKT_EXT_NONE; 2338 break; 2339 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2340 low_th = IWL_HE_PKT_EXT_BPSK; 2341 high_th = IWL_HE_PKT_EXT_NONE; 2342 break; 2343 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2344 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2345 low_th = IWL_HE_PKT_EXT_NONE; 2346 high_th = IWL_HE_PKT_EXT_BPSK; 2347 break; 2348 } 2349 2350 if (low_th < 0 || high_th < 0) 2351 return -EINVAL; 2352 2353 /* Set the PPE thresholds accordingly */ 2354 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2355 u8 bw; 2356 2357 for (bw = 0; 2358 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2359 bw++) { 2360 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2361 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2362 } 2363 } 2364 2365 return 0; 2366 } 2367 2368 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2369 u8 nominal_padding) 2370 { 2371 int i; 2372 2373 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2374 u8 bw; 2375 2376 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2377 bw++) { 2378 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2379 2380 if (nominal_padding > 2381 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2382 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2383 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2384 else if (nominal_padding == 2385 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2386 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2387 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2388 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2389 } 2390 } 2391 } 2392 2393 /* Set the pkt_ext field according to PPE Thresholds element */ 2394 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2395 struct ieee80211_link_sta *link_sta, 2396 struct iwl_he_pkt_ext_v2 *pkt_ext) 2397 { 2398 u8 nominal_padding; 2399 int i, ret = 0; 2400 2401 if (WARN_ON(!link_sta)) 2402 return -EINVAL; 2403 2404 /* Initialize the PPE thresholds to "None" (7), as described in Table 2405 * 9-262ac of 80211.ax/D3.0. 2406 */ 2407 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2408 sizeof(struct iwl_he_pkt_ext_v2)); 2409 2410 if (link_sta->eht_cap.has_eht) { 2411 nominal_padding = 2412 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2413 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2414 2415 /* If PPE Thresholds exists, parse them into a FW-familiar 2416 * format. 2417 */ 2418 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2419 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2420 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2421 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2422 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2423 u8 ru_index_bitmap = 2424 u16_get_bits(*ppe, 2425 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2426 /* Starting after PPE header */ 2427 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2428 2429 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2430 ppe, ppe_pos_bit, true); 2431 /* EHT PPE Thresholds doesn't exist - set the API according to 2432 * HE PPE Tresholds 2433 */ 2434 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2435 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2436 /* Even though HE Capabilities IE doesn't contain PPE 2437 * Thresholds for BW 320Mhz, thresholds for this BW will 2438 * be filled in with the same values as 160Mhz, due to 2439 * the inheritance, as required. 2440 */ 2441 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2442 true); 2443 2444 /* According to the requirements, for MCSs 12-13 the 2445 * maximum value between HE PPE Threshold and Common 2446 * Nominal Packet Padding needs to be taken 2447 */ 2448 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2449 2450 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2451 * take the Thresholds from Common Nominal Packet Padding field 2452 */ 2453 } else { 2454 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2455 nominal_padding); 2456 } 2457 } else if (link_sta->he_cap.has_he) { 2458 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2459 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2460 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2461 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2462 false); 2463 /* PPE Thresholds doesn't exist - set the API PPE values 2464 * according to Common Nominal Packet Padding field. 2465 */ 2466 } else { 2467 nominal_padding = 2468 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2469 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2470 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2471 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2472 nominal_padding); 2473 } 2474 } 2475 2476 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2477 int bw; 2478 2479 for (bw = 0; 2480 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2481 bw++) { 2482 u8 *qam_th = 2483 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2484 2485 IWL_DEBUG_HT(mvm, 2486 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2487 i, bw, qam_th[0], qam_th[1]); 2488 } 2489 } 2490 return ret; 2491 } 2492 2493 /* 2494 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2495 * is enabled or not 2496 */ 2497 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2498 const struct iwl_mvm_vif_link_info *link_info, 2499 struct iwl_he_backoff_conf *trig_based_txf) 2500 { 2501 int i; 2502 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2503 bool mu_edca_enabled = true; 2504 2505 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2506 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2507 &link_info->queue_params[i].mu_edca_param_rec; 2508 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2509 2510 if (!link_info->queue_params[i].mu_edca) { 2511 mu_edca_enabled = false; 2512 break; 2513 } 2514 2515 trig_based_txf[ac].cwmin = 2516 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2517 trig_based_txf[ac].cwmax = 2518 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2519 trig_based_txf[ac].aifsn = 2520 cpu_to_le16(mu_edca->aifsn & 0xf); 2521 trig_based_txf[ac].mu_time = 2522 cpu_to_le16(mu_edca->mu_edca_timer); 2523 } 2524 2525 return mu_edca_enabled; 2526 } 2527 2528 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2529 { 2530 const struct ieee80211_supported_band *sband; 2531 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2532 2533 /* This capability is the same for all bands, 2534 * so take it from one of them. 2535 */ 2536 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2537 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2538 2539 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2540 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2541 } 2542 2543 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2544 struct ieee80211_link_sta *link_sta) 2545 { 2546 u8 *mac_cap_info = 2547 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2548 __le32 htc_flags = 0; 2549 2550 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2551 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2552 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2553 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2554 u8 link_adap = 2555 ((mac_cap_info[2] & 2556 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2557 (mac_cap_info[1] & 2558 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2559 2560 if (link_adap == 2) 2561 htc_flags |= 2562 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2563 else if (link_adap == 3) 2564 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2565 } 2566 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2567 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2568 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2569 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2570 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2571 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2572 2573 return htc_flags; 2574 } 2575 2576 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2577 struct ieee80211_vif *vif, u8 sta_id) 2578 { 2579 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2580 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2581 .sta_id = sta_id, 2582 .tid_limit = IWL_MAX_TID_COUNT, 2583 .bss_color = vif->bss_conf.he_bss_color.color, 2584 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2585 .frame_time_rts_th = 2586 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2587 }; 2588 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2589 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2590 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2591 int size; 2592 struct ieee80211_sta *sta; 2593 u32 flags; 2594 int i; 2595 void *cmd; 2596 2597 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2598 ver = 1; 2599 2600 switch (ver) { 2601 case 1: 2602 /* same layout as v2 except some data at the end */ 2603 cmd = &sta_ctxt_cmd_v2; 2604 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2605 break; 2606 case 2: 2607 cmd = &sta_ctxt_cmd_v2; 2608 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2609 break; 2610 case 3: 2611 cmd = &sta_ctxt_cmd; 2612 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2613 break; 2614 default: 2615 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2616 return; 2617 } 2618 2619 rcu_read_lock(); 2620 2621 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2622 if (IS_ERR_OR_NULL(sta)) { 2623 rcu_read_unlock(); 2624 WARN(1, "Can't find STA to configure HE\n"); 2625 return; 2626 } 2627 2628 if (!sta->deflink.he_cap.has_he) { 2629 rcu_read_unlock(); 2630 return; 2631 } 2632 2633 flags = 0; 2634 2635 /* Block 26-tone RU OFDMA transmissions */ 2636 if (mvmvif->deflink.he_ru_2mhz_block) 2637 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2638 2639 /* HTC flags */ 2640 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2641 2642 /* PPE Thresholds */ 2643 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2644 flags |= STA_CTXT_HE_PACKET_EXT; 2645 2646 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2647 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2648 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2649 2650 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2651 IEEE80211_HE_MAC_CAP2_ACK_EN) 2652 flags |= STA_CTXT_HE_ACK_ENABLED; 2653 2654 rcu_read_unlock(); 2655 2656 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2657 &sta_ctxt_cmd.trig_based_txf[0])) 2658 flags |= STA_CTXT_HE_MU_EDCA_CW; 2659 2660 if (vif->bss_conf.uora_exists) { 2661 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2662 2663 sta_ctxt_cmd.rand_alloc_ecwmin = 2664 vif->bss_conf.uora_ocw_range & 0x7; 2665 sta_ctxt_cmd.rand_alloc_ecwmax = 2666 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2667 } 2668 2669 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2670 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2671 2672 if (vif->bss_conf.nontransmitted) { 2673 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2674 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2675 vif->bss_conf.transmitter_bssid); 2676 sta_ctxt_cmd.max_bssid_indicator = 2677 vif->bss_conf.bssid_indicator; 2678 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2679 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2680 sta_ctxt_cmd.profile_periodicity = 2681 vif->bss_conf.profile_periodicity; 2682 } 2683 2684 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2685 2686 if (ver < 3) { 2687 /* fields before pkt_ext */ 2688 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2689 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2690 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2691 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2692 2693 /* pkt_ext */ 2694 for (i = 0; 2695 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2696 i++) { 2697 u8 bw; 2698 2699 for (bw = 0; 2700 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2701 bw++) { 2702 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2703 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2704 2705 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2706 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2707 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2708 } 2709 } 2710 2711 /* fields after pkt_ext */ 2712 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2713 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2714 sizeof(sta_ctxt_cmd_v2) - 2715 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2716 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2717 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2718 (u8 *)&sta_ctxt_cmd + 2719 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2720 sizeof(sta_ctxt_cmd) - 2721 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2722 sta_ctxt_cmd_v2.reserved3 = 0; 2723 } 2724 2725 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2726 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2727 } 2728 2729 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2730 u32 duration_override, unsigned int link_id) 2731 { 2732 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2733 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2734 2735 if (duration_override > duration) 2736 duration = duration_override; 2737 2738 /* Try really hard to protect the session and hear a beacon 2739 * The new session protection command allows us to protect the 2740 * session for a much longer time since the firmware will internally 2741 * create two events: a 300TU one with a very high priority that 2742 * won't be fragmented which should be enough for 99% of the cases, 2743 * and another one (which we configure here to be 900TU long) which 2744 * will have a slightly lower priority, but more importantly, can be 2745 * fragmented so that it'll allow other activities to run. 2746 */ 2747 if (fw_has_capa(&mvm->fw->ucode_capa, 2748 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2749 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2750 min_duration, false, 2751 link_id); 2752 else 2753 iwl_mvm_protect_session(mvm, vif, duration, 2754 min_duration, 500, false); 2755 } 2756 2757 /* Handle association common part to MLD and non-MLD modes */ 2758 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2759 struct ieee80211_vif *vif, 2760 u64 changes) 2761 { 2762 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2763 int ret; 2764 int link_id; 2765 2766 /* The firmware tracks the MU-MIMO group on its own. 2767 * However, on HW restart we should restore this data. 2768 */ 2769 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2770 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2771 ret = iwl_mvm_update_mu_groups(mvm, vif); 2772 if (ret) 2773 IWL_ERR(mvm, 2774 "failed to update VHT MU_MIMO groups\n"); 2775 } 2776 2777 iwl_mvm_recalc_multicast(mvm); 2778 2779 /* reset rssi values */ 2780 for_each_mvm_vif_valid_link(mvmvif, link_id) 2781 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2782 2783 iwl_mvm_bt_coex_vif_change(mvm); 2784 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2785 IEEE80211_SMPS_AUTOMATIC); 2786 if (fw_has_capa(&mvm->fw->ucode_capa, 2787 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2788 iwl_mvm_config_scan(mvm); 2789 } 2790 2791 /* Execute the common part for MLD and non-MLD modes */ 2792 void 2793 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2794 struct ieee80211_vif *vif, 2795 struct ieee80211_bss_conf *link_conf, 2796 u64 changes) 2797 { 2798 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2799 int ret; 2800 2801 if (changes & BSS_CHANGED_BEACON_INFO) { 2802 /* We received a beacon from the associated AP so 2803 * remove the session protection. 2804 */ 2805 iwl_mvm_stop_session_protection(mvm, vif); 2806 2807 iwl_mvm_sf_update(mvm, vif, false); 2808 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2809 } 2810 2811 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2812 /* Send power command on every beacon change, 2813 * because we may have not enabled beacon abort yet. 2814 */ 2815 BSS_CHANGED_BEACON_INFO)) { 2816 ret = iwl_mvm_power_update_mac(mvm); 2817 if (ret) 2818 IWL_ERR(mvm, "failed to update power mode\n"); 2819 } 2820 2821 if (changes & BSS_CHANGED_CQM) { 2822 struct iwl_mvm_vif_link_info *link_info = 2823 mvmvif->link[link_conf->link_id]; 2824 2825 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2826 if (link_info) 2827 link_info->bf_data.last_cqm_event = 0; 2828 2829 if (mvmvif->bf_enabled) { 2830 /* FIXME: need to update per link when FW API will 2831 * support it 2832 */ 2833 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2834 if (ret) 2835 IWL_ERR(mvm, 2836 "failed to update CQM thresholds\n"); 2837 } 2838 } 2839 2840 if (changes & BSS_CHANGED_BANDWIDTH) 2841 iwl_mvm_update_link_smps(vif, link_conf); 2842 2843 if (changes & BSS_CHANGED_TPE) { 2844 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2845 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2846 link_conf, 2847 false); 2848 } 2849 } 2850 2851 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2852 struct ieee80211_vif *vif, 2853 struct ieee80211_bss_conf *bss_conf, 2854 u64 changes) 2855 { 2856 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2857 int ret; 2858 int i; 2859 2860 /* 2861 * Re-calculate the tsf id, as the leader-follower relations depend 2862 * on the beacon interval, which was not known when the station 2863 * interface was added. 2864 */ 2865 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2866 if ((vif->bss_conf.he_support && 2867 !iwlwifi_mod_params.disable_11ax)) 2868 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2869 2870 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2871 } 2872 2873 /* Update MU EDCA params */ 2874 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2875 vif->cfg.assoc && 2876 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2877 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2878 2879 /* 2880 * If we're not associated yet, take the (new) BSSID before associating 2881 * so the firmware knows. If we're already associated, then use the old 2882 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2883 * branch for disassociation below. 2884 */ 2885 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2886 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2887 2888 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2889 if (ret) 2890 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2891 2892 /* after sending it once, adopt mac80211 data */ 2893 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2894 mvmvif->associated = vif->cfg.assoc; 2895 2896 if (changes & BSS_CHANGED_ASSOC) { 2897 if (vif->cfg.assoc) { 2898 mvmvif->session_prot_connection_loss = false; 2899 2900 /* clear statistics to get clean beacon counter */ 2901 iwl_mvm_request_statistics(mvm, true); 2902 for_each_mvm_vif_valid_link(mvmvif, i) 2903 memset(&mvmvif->link[i]->beacon_stats, 0, 2904 sizeof(mvmvif->link[i]->beacon_stats)); 2905 2906 /* add quota for this interface */ 2907 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2908 if (ret) { 2909 IWL_ERR(mvm, "failed to update quotas\n"); 2910 return; 2911 } 2912 2913 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2914 &mvm->status) && 2915 !fw_has_capa(&mvm->fw->ucode_capa, 2916 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2917 /* 2918 * If we're restarting then the firmware will 2919 * obviously have lost synchronisation with 2920 * the AP. It will attempt to synchronise by 2921 * itself, but we can make it more reliable by 2922 * scheduling a session protection time event. 2923 * 2924 * The firmware needs to receive a beacon to 2925 * catch up with synchronisation, use 110% of 2926 * the beacon interval. 2927 * 2928 * Set a large maximum delay to allow for more 2929 * than a single interface. 2930 * 2931 * For new firmware versions, rely on the 2932 * firmware. This is relevant for DCM scenarios 2933 * only anyway. 2934 */ 2935 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2936 iwl_mvm_protect_session(mvm, vif, dur, dur, 2937 5 * dur, false); 2938 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2939 &mvm->status) && 2940 !vif->bss_conf.dtim_period) { 2941 /* 2942 * If we're not restarting and still haven't 2943 * heard a beacon (dtim period unknown) then 2944 * make sure we still have enough minimum time 2945 * remaining in the time event, since the auth 2946 * might actually have taken quite a while 2947 * (especially for SAE) and so the remaining 2948 * time could be small without us having heard 2949 * a beacon yet. 2950 */ 2951 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2952 } 2953 2954 iwl_mvm_sf_update(mvm, vif, false); 2955 iwl_mvm_power_vif_assoc(mvm, vif); 2956 if (vif->p2p) { 2957 iwl_mvm_update_smps(mvm, vif, 2958 IWL_MVM_SMPS_REQ_PROT, 2959 IEEE80211_SMPS_DYNAMIC, 0); 2960 } 2961 } else if (mvmvif->deflink.ap_sta_id != IWL_INVALID_STA) { 2962 iwl_mvm_mei_host_disassociated(mvm); 2963 /* 2964 * If update fails - SF might be running in associated 2965 * mode while disassociated - which is forbidden. 2966 */ 2967 ret = iwl_mvm_sf_update(mvm, vif, false); 2968 WARN_ONCE(ret && 2969 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2970 &mvm->status), 2971 "Failed to update SF upon disassociation\n"); 2972 2973 /* remove quota for this interface */ 2974 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2975 if (ret) 2976 IWL_ERR(mvm, "failed to update quotas\n"); 2977 2978 /* this will take the cleared BSSID from bss_conf */ 2979 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2980 if (ret) 2981 IWL_ERR(mvm, 2982 "failed to update MAC %pM (clear after unassoc)\n", 2983 vif->addr); 2984 } 2985 2986 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2987 } 2988 2989 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2990 changes); 2991 } 2992 2993 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2994 struct ieee80211_vif *vif, 2995 int *ret) 2996 { 2997 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2998 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2999 int i; 3000 3001 lockdep_assert_held(&mvm->mutex); 3002 3003 mvmvif->ap_assoc_sta_count = 0; 3004 3005 /* must be set before quota calculations */ 3006 mvmvif->ap_ibss_active = true; 3007 3008 /* send all the early keys to the device now */ 3009 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3010 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 3011 3012 if (!key) 3013 continue; 3014 3015 mvmvif->ap_early_keys[i] = NULL; 3016 3017 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 3018 if (*ret) 3019 return true; 3020 } 3021 3022 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3023 iwl_mvm_vif_set_low_latency(mvmvif, true, 3024 LOW_LATENCY_VIF_TYPE); 3025 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 3026 } 3027 3028 /* power updated needs to be done before quotas */ 3029 iwl_mvm_power_update_mac(mvm); 3030 3031 return false; 3032 } 3033 3034 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 3035 struct ieee80211_vif *vif, 3036 struct ieee80211_bss_conf *link_conf) 3037 { 3038 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3039 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3040 int ret; 3041 3042 mutex_lock(&mvm->mutex); 3043 3044 /* 3045 * Re-calculate the tsf id, as the leader-follower relations depend on 3046 * the beacon interval, which was not known when the AP interface 3047 * was added. 3048 */ 3049 if (vif->type == NL80211_IFTYPE_AP) 3050 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 3051 3052 /* For older devices need to send beacon template before adding mac 3053 * context. For the newer, the beacon is a resource that belongs to a 3054 * MAC, so need to send beacon template after adding the mac. 3055 */ 3056 if (mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 3057 /* Add the mac context */ 3058 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3059 if (ret) 3060 goto out_unlock; 3061 3062 /* Send the beacon template */ 3063 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3064 if (ret) 3065 goto out_unlock; 3066 } else { 3067 /* Send the beacon template */ 3068 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3069 if (ret) 3070 goto out_unlock; 3071 3072 /* Add the mac context */ 3073 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3074 if (ret) 3075 goto out_unlock; 3076 } 3077 3078 /* Perform the binding */ 3079 ret = iwl_mvm_binding_add_vif(mvm, vif); 3080 if (ret) 3081 goto out_remove; 3082 3083 /* 3084 * This is not very nice, but the simplest: 3085 * For older FWs adding the mcast sta before the bcast station may 3086 * cause assert 0x2b00. 3087 * This is fixed in later FW so make the order of removal depend on 3088 * the TLV 3089 */ 3090 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3091 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3092 if (ret) 3093 goto out_unbind; 3094 /* 3095 * Send the bcast station. At this stage the TBTT and DTIM time 3096 * events are added and applied to the scheduler 3097 */ 3098 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3099 if (ret) { 3100 iwl_mvm_rm_mcast_sta(mvm, vif); 3101 goto out_unbind; 3102 } 3103 } else { 3104 /* 3105 * Send the bcast station. At this stage the TBTT and DTIM time 3106 * events are added and applied to the scheduler 3107 */ 3108 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3109 if (ret) 3110 goto out_unbind; 3111 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3112 if (ret) { 3113 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3114 goto out_unbind; 3115 } 3116 } 3117 3118 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3119 goto out_failed; 3120 3121 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3122 if (ret) 3123 goto out_failed; 3124 3125 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3126 if (vif->p2p && mvm->p2p_device_vif) 3127 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3128 3129 iwl_mvm_bt_coex_vif_change(mvm); 3130 3131 /* we don't support TDLS during DCM */ 3132 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3133 iwl_mvm_teardown_tdls_peers(mvm); 3134 3135 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3136 3137 goto out_unlock; 3138 3139 out_failed: 3140 iwl_mvm_power_update_mac(mvm); 3141 mvmvif->ap_ibss_active = false; 3142 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3143 iwl_mvm_rm_mcast_sta(mvm, vif); 3144 out_unbind: 3145 iwl_mvm_binding_remove_vif(mvm, vif); 3146 out_remove: 3147 iwl_mvm_mac_ctxt_remove(mvm, vif); 3148 out_unlock: 3149 mutex_unlock(&mvm->mutex); 3150 return ret; 3151 } 3152 3153 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3154 struct ieee80211_vif *vif, 3155 struct ieee80211_bss_conf *link_conf) 3156 { 3157 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3158 } 3159 3160 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3161 struct ieee80211_vif *vif) 3162 { 3163 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3164 } 3165 3166 /* Common part for MLD and non-MLD ops */ 3167 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3168 struct ieee80211_vif *vif) 3169 { 3170 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3171 3172 lockdep_assert_held(&mvm->mutex); 3173 3174 iwl_mvm_prepare_mac_removal(mvm, vif); 3175 3176 /* Handle AP stop while in CSA */ 3177 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3178 iwl_mvm_remove_time_event(mvm, mvmvif, 3179 &mvmvif->time_event_data); 3180 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3181 mvmvif->csa_countdown = false; 3182 } 3183 3184 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3185 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3186 mvm->csa_tx_block_bcn_timeout = 0; 3187 } 3188 3189 mvmvif->ap_ibss_active = false; 3190 mvm->ap_last_beacon_gp2 = 0; 3191 3192 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3193 iwl_mvm_vif_set_low_latency(mvmvif, false, 3194 LOW_LATENCY_VIF_TYPE); 3195 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3196 } 3197 3198 iwl_mvm_bt_coex_vif_change(mvm); 3199 } 3200 3201 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3202 struct ieee80211_vif *vif, 3203 struct ieee80211_bss_conf *link_conf) 3204 { 3205 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3206 3207 guard(mvm)(mvm); 3208 3209 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3210 3211 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3212 if (vif->p2p && mvm->p2p_device_vif) 3213 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3214 3215 iwl_mvm_update_quotas(mvm, false, NULL); 3216 3217 iwl_mvm_ftm_responder_clear(mvm, vif); 3218 3219 /* 3220 * This is not very nice, but the simplest: 3221 * For older FWs removing the mcast sta before the bcast station may 3222 * cause assert 0x2b00. 3223 * This is fixed in later FW (which will stop beaconing when removing 3224 * bcast station). 3225 * So make the order of removal depend on the TLV 3226 */ 3227 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3228 iwl_mvm_rm_mcast_sta(mvm, vif); 3229 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3230 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3231 iwl_mvm_rm_mcast_sta(mvm, vif); 3232 iwl_mvm_binding_remove_vif(mvm, vif); 3233 3234 iwl_mvm_power_update_mac(mvm); 3235 3236 iwl_mvm_mac_ctxt_remove(mvm, vif); 3237 } 3238 3239 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3240 struct ieee80211_vif *vif, 3241 struct ieee80211_bss_conf *link_conf) 3242 { 3243 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3244 } 3245 3246 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3247 struct ieee80211_vif *vif) 3248 { 3249 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3250 } 3251 3252 static void 3253 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3254 struct ieee80211_vif *vif, 3255 struct ieee80211_bss_conf *bss_conf, 3256 u64 changes) 3257 { 3258 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3259 3260 /* Changes will be applied when the AP/IBSS is started */ 3261 if (!mvmvif->ap_ibss_active) 3262 return; 3263 3264 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3265 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3266 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3267 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3268 3269 /* Need to send a new beacon template to the FW */ 3270 if (changes & BSS_CHANGED_BEACON && 3271 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3272 IWL_WARN(mvm, "Failed updating beacon data\n"); 3273 3274 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3275 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3276 3277 if (ret) 3278 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3279 ret); 3280 } 3281 3282 } 3283 3284 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3285 struct ieee80211_vif *vif, 3286 struct ieee80211_bss_conf *bss_conf, 3287 u64 changes) 3288 { 3289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3290 3291 guard(mvm)(mvm); 3292 3293 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3294 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3295 3296 switch (vif->type) { 3297 case NL80211_IFTYPE_STATION: 3298 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3299 break; 3300 case NL80211_IFTYPE_AP: 3301 case NL80211_IFTYPE_ADHOC: 3302 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3303 break; 3304 case NL80211_IFTYPE_MONITOR: 3305 if (changes & BSS_CHANGED_MU_GROUPS) 3306 iwl_mvm_update_mu_groups(mvm, vif); 3307 break; 3308 default: 3309 /* shouldn't happen */ 3310 WARN_ON_ONCE(1); 3311 } 3312 3313 if (changes & BSS_CHANGED_TXPOWER) { 3314 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3315 bss_conf->txpower); 3316 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower); 3317 } 3318 } 3319 3320 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3321 struct ieee80211_scan_request *hw_req) 3322 { 3323 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3324 3325 if (hw_req->req.n_channels == 0 || 3326 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3327 return -EINVAL; 3328 3329 guard(mvm)(mvm); 3330 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3331 } 3332 3333 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3334 struct ieee80211_vif *vif) 3335 { 3336 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3337 3338 guard(mvm)(mvm); 3339 3340 /* Due to a race condition, it's possible that mac80211 asks 3341 * us to stop a hw_scan when it's already stopped. This can 3342 * happen, for instance, if we stopped the scan ourselves, 3343 * called ieee80211_scan_completed() and the userspace called 3344 * cancel scan scan before ieee80211_scan_work() could run. 3345 * To handle that, simply return if the scan is not running. 3346 */ 3347 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3348 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3349 } 3350 3351 void 3352 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3353 struct ieee80211_sta *sta, u16 tids, 3354 int num_frames, 3355 enum ieee80211_frame_release_type reason, 3356 bool more_data) 3357 { 3358 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3359 3360 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3361 3362 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3363 tids, more_data, false); 3364 } 3365 3366 void 3367 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3368 struct ieee80211_sta *sta, u16 tids, 3369 int num_frames, 3370 enum ieee80211_frame_release_type reason, 3371 bool more_data) 3372 { 3373 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3374 3375 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3376 3377 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3378 tids, more_data, true); 3379 } 3380 3381 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3382 enum sta_notify_cmd cmd, 3383 struct ieee80211_sta *sta) 3384 { 3385 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3386 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3387 unsigned long txqs = 0, tids = 0; 3388 int tid; 3389 3390 /* 3391 * If we have TVQM then we get too high queue numbers - luckily 3392 * we really shouldn't get here with that because such hardware 3393 * should have firmware supporting buffer station offload. 3394 */ 3395 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3396 return; 3397 3398 spin_lock_bh(&mvmsta->lock); 3399 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3400 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3401 3402 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3403 continue; 3404 3405 __set_bit(tid_data->txq_id, &txqs); 3406 3407 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3408 continue; 3409 3410 __set_bit(tid, &tids); 3411 } 3412 3413 switch (cmd) { 3414 case STA_NOTIFY_SLEEP: 3415 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3416 ieee80211_sta_set_buffered(sta, tid, true); 3417 3418 if (txqs) 3419 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3420 /* 3421 * The fw updates the STA to be asleep. Tx packets on the Tx 3422 * queues to this station will not be transmitted. The fw will 3423 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3424 */ 3425 break; 3426 case STA_NOTIFY_AWAKE: 3427 if (WARN_ON(mvmsta->deflink.sta_id == IWL_INVALID_STA)) 3428 break; 3429 3430 if (txqs) 3431 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3432 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3433 break; 3434 default: 3435 break; 3436 } 3437 spin_unlock_bh(&mvmsta->lock); 3438 } 3439 3440 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3441 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3442 { 3443 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3444 } 3445 3446 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3447 { 3448 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3449 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3450 struct ieee80211_sta *sta; 3451 struct iwl_mvm_sta *mvmsta; 3452 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3453 3454 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3455 return; 3456 3457 rcu_read_lock(); 3458 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3459 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3460 rcu_read_unlock(); 3461 return; 3462 } 3463 3464 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3465 3466 if (!mvmsta->vif || 3467 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3468 rcu_read_unlock(); 3469 return; 3470 } 3471 3472 if (mvmsta->sleeping != sleeping) { 3473 mvmsta->sleeping = sleeping; 3474 __iwl_mvm_mac_sta_notify(mvm->hw, 3475 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3476 sta); 3477 ieee80211_sta_ps_transition(sta, sleeping); 3478 } 3479 3480 if (sleeping) { 3481 switch (notif->type) { 3482 case IWL_MVM_PM_EVENT_AWAKE: 3483 case IWL_MVM_PM_EVENT_ASLEEP: 3484 break; 3485 case IWL_MVM_PM_EVENT_UAPSD: 3486 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3487 break; 3488 case IWL_MVM_PM_EVENT_PS_POLL: 3489 ieee80211_sta_pspoll(sta); 3490 break; 3491 default: 3492 break; 3493 } 3494 } 3495 3496 rcu_read_unlock(); 3497 } 3498 3499 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3500 struct ieee80211_vif *vif, 3501 struct ieee80211_sta *sta) 3502 { 3503 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3504 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3505 unsigned int link_id; 3506 3507 lockdep_assert_wiphy(mvm->hw->wiphy); 3508 3509 /* 3510 * This is called before mac80211 does RCU synchronisation, 3511 * so here we already invalidate our internal RCU-protected 3512 * station pointer. The rest of the code will thus no longer 3513 * be able to find the station this way, and we don't rely 3514 * on further RCU synchronisation after the sta_state() 3515 * callback deleted the station. 3516 * Since there's mvm->mutex here, no need to have RCU lock for 3517 * mvm_sta->link access. 3518 */ 3519 guard(mvm)(mvm); 3520 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3521 struct iwl_mvm_link_sta *link_sta; 3522 u32 sta_id; 3523 3524 if (!mvm_sta->link[link_id]) 3525 continue; 3526 3527 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3528 lockdep_is_held(&mvm->mutex)); 3529 sta_id = link_sta->sta_id; 3530 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3531 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3532 ERR_PTR(-ENOENT)); 3533 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3534 } 3535 } 3536 } 3537 3538 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3539 const u8 *bssid) 3540 { 3541 int i; 3542 3543 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3544 struct iwl_mvm_tcm_mac *mdata; 3545 3546 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3547 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3548 mdata->opened_rx_ba_sessions = false; 3549 } 3550 3551 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3552 return; 3553 3554 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3555 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3556 return; 3557 } 3558 3559 if (!vif->p2p && 3560 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3561 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3562 return; 3563 } 3564 3565 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3566 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3567 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3568 return; 3569 } 3570 } 3571 3572 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3573 } 3574 3575 static void 3576 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3577 struct ieee80211_vif *vif, u8 *peer_addr, 3578 enum nl80211_tdls_operation action) 3579 { 3580 struct iwl_fw_dbg_trigger_tlv *trig; 3581 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3582 3583 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3584 FW_DBG_TRIGGER_TDLS); 3585 if (!trig) 3586 return; 3587 3588 tdls_trig = (void *)trig->data; 3589 3590 if (!(tdls_trig->action_bitmap & BIT(action))) 3591 return; 3592 3593 if (tdls_trig->peer_mode && 3594 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3595 return; 3596 3597 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3598 "TDLS event occurred, peer %pM, action %d", 3599 peer_addr, action); 3600 } 3601 3602 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3603 bool tolerated; 3604 }; 3605 3606 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3607 struct cfg80211_bss *bss, 3608 void *_data) 3609 { 3610 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3611 const struct cfg80211_bss_ies *ies; 3612 const struct element *elem; 3613 3614 rcu_read_lock(); 3615 ies = rcu_dereference(bss->ies); 3616 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3617 ies->len); 3618 3619 if (!elem || elem->datalen < 10 || 3620 !(elem->data[10] & 3621 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3622 data->tolerated = false; 3623 } 3624 rcu_read_unlock(); 3625 } 3626 3627 static void 3628 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3629 struct ieee80211_vif *vif, 3630 unsigned int link_id, 3631 struct ieee80211_bss_conf *link_conf) 3632 { 3633 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3634 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3635 .tolerated = true, 3636 }; 3637 3638 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3639 !mvmvif->link[link_id])) 3640 return; 3641 3642 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3643 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3644 return; 3645 } 3646 3647 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3648 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3649 &iter_data); 3650 3651 /* 3652 * If there is at least one AP on radar channel that cannot 3653 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3654 */ 3655 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3656 } 3657 3658 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3659 struct ieee80211_vif *vif) 3660 { 3661 struct ieee80211_supported_band *sband; 3662 const struct ieee80211_sta_he_cap *he_cap; 3663 3664 if (vif->type != NL80211_IFTYPE_STATION) 3665 return; 3666 3667 if (!mvm->cca_40mhz_workaround) 3668 return; 3669 3670 /* decrement and check that we reached zero */ 3671 mvm->cca_40mhz_workaround--; 3672 if (mvm->cca_40mhz_workaround) 3673 return; 3674 3675 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3676 3677 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3678 3679 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3680 3681 if (he_cap) { 3682 /* we know that ours is writable */ 3683 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3684 3685 he->he_cap_elem.phy_cap_info[0] |= 3686 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3687 } 3688 } 3689 3690 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3691 struct ieee80211_vif *vif, 3692 struct iwl_mvm_sta *mvm_sta) 3693 { 3694 #if IS_ENABLED(CONFIG_IWLMEI) 3695 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3696 struct iwl_mei_conn_info conn_info = { 3697 .ssid_len = vif->cfg.ssid_len, 3698 }; 3699 3700 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3701 return; 3702 3703 if (!mvm->mei_registered) 3704 return; 3705 3706 /* FIXME: MEI needs to be updated for MLO */ 3707 if (!vif->bss_conf.chanreq.oper.chan) 3708 return; 3709 3710 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3711 3712 switch (mvm_sta->pairwise_cipher) { 3713 case WLAN_CIPHER_SUITE_TKIP: 3714 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3715 break; 3716 case WLAN_CIPHER_SUITE_CCMP: 3717 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3718 break; 3719 case WLAN_CIPHER_SUITE_GCMP: 3720 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3721 break; 3722 case WLAN_CIPHER_SUITE_GCMP_256: 3723 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3724 break; 3725 case 0: 3726 /* open profile */ 3727 break; 3728 default: 3729 /* cipher not supported, don't send anything to iwlmei */ 3730 return; 3731 } 3732 3733 switch (mvmvif->rekey_data.akm) { 3734 case WLAN_AKM_SUITE_SAE & 0xff: 3735 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3736 break; 3737 case WLAN_AKM_SUITE_PSK & 0xff: 3738 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3739 break; 3740 case WLAN_AKM_SUITE_8021X & 0xff: 3741 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3742 break; 3743 case 0: 3744 /* open profile */ 3745 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3746 break; 3747 default: 3748 /* auth method / AKM not supported */ 3749 /* TODO: All the FT vesions of these? */ 3750 return; 3751 } 3752 3753 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3754 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3755 3756 /* TODO: add support for collocated AP data */ 3757 iwl_mei_host_associated(&conn_info, NULL); 3758 #endif 3759 } 3760 3761 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3762 struct ieee80211_vif *vif, 3763 bool force_assoc_off) 3764 { 3765 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3766 } 3767 3768 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3769 struct ieee80211_vif *vif, 3770 struct ieee80211_sta *sta, 3771 enum ieee80211_sta_state old_state, 3772 enum ieee80211_sta_state new_state) 3773 { 3774 static const struct iwl_mvm_sta_state_ops callbacks = { 3775 .add_sta = iwl_mvm_add_sta, 3776 .update_sta = iwl_mvm_update_sta, 3777 .rm_sta = iwl_mvm_rm_sta, 3778 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3779 }; 3780 3781 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3782 &callbacks); 3783 } 3784 3785 /* FIXME: temporary making two assumptions in all sta handling functions: 3786 * (1) when setting sta state, the link exists and protected 3787 * (2) if a link is valid in sta then it's valid in vif (can 3788 * use same index in the link array) 3789 */ 3790 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3791 struct ieee80211_vif *vif, 3792 struct ieee80211_sta *sta) 3793 { 3794 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3795 unsigned int link_id; 3796 3797 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3798 struct ieee80211_bss_conf *conf = 3799 link_conf_dereference_check(vif, link_id); 3800 struct ieee80211_link_sta *link_sta = 3801 link_sta_dereference_check(sta, link_id); 3802 3803 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3804 continue; 3805 3806 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3807 mvmvif->link[link_id]->phy_ctxt->channel->band); 3808 } 3809 } 3810 3811 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3812 struct ieee80211_vif *vif, 3813 struct ieee80211_sta *sta) 3814 { 3815 struct ieee80211_link_sta *link_sta; 3816 unsigned int link_id; 3817 3818 /* Beacon interval check - firmware will crash if the beacon 3819 * interval is less than 16. We can't avoid connecting at all, 3820 * so refuse the station state change, this will cause mac80211 3821 * to abandon attempts to connect to this AP, and eventually 3822 * wpa_s will blocklist the AP... 3823 */ 3824 3825 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3826 struct ieee80211_bss_conf *link_conf = 3827 link_conf_dereference_protected(vif, link_id); 3828 3829 if (!link_conf) 3830 continue; 3831 3832 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3833 IWL_ERR(mvm, 3834 "Beacon interval %d for AP %pM is too small\n", 3835 link_conf->beacon_int, link_sta->addr); 3836 return false; 3837 } 3838 3839 link_conf->he_support = link_sta->he_cap.has_he; 3840 } 3841 3842 return true; 3843 } 3844 3845 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3846 struct ieee80211_vif *vif, 3847 struct ieee80211_sta *sta, 3848 bool is_sta) 3849 { 3850 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3851 struct ieee80211_link_sta *link_sta; 3852 unsigned int link_id; 3853 3854 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3855 struct ieee80211_bss_conf *link_conf = 3856 link_conf_dereference_protected(vif, link_id); 3857 3858 if (!link_conf || !mvmvif->link[link_id]) 3859 continue; 3860 3861 link_conf->he_support = link_sta->he_cap.has_he; 3862 3863 if (is_sta) { 3864 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3865 if (link_sta->he_cap.has_he) 3866 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3867 link_id, 3868 link_conf); 3869 } 3870 } 3871 } 3872 3873 static int 3874 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3875 struct ieee80211_vif *vif, 3876 struct ieee80211_sta *sta, 3877 const struct iwl_mvm_sta_state_ops *callbacks) 3878 { 3879 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3880 struct ieee80211_link_sta *link_sta; 3881 unsigned int i; 3882 int ret; 3883 3884 lockdep_assert_held(&mvm->mutex); 3885 3886 if (vif->type == NL80211_IFTYPE_STATION && 3887 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3888 return -EINVAL; 3889 3890 if (sta->tdls && 3891 (vif->p2p || 3892 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_TDLS_STA_COUNT || 3893 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3894 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3895 return -EBUSY; 3896 } 3897 3898 ret = callbacks->add_sta(mvm, vif, sta); 3899 if (sta->tdls && ret == 0) { 3900 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3901 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3902 NL80211_TDLS_SETUP); 3903 } 3904 3905 if (ret) 3906 return ret; 3907 3908 for_each_sta_active_link(vif, sta, link_sta, i) 3909 link_sta->agg.max_rc_amsdu_len = 1; 3910 3911 ieee80211_sta_recalc_aggregates(sta); 3912 3913 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3914 mvmvif->ap_sta = sta; 3915 3916 /* 3917 * Initialize the rates here already - this really tells 3918 * the firmware only what the supported legacy rates are 3919 * (may be) since it's initialized already from what the 3920 * AP advertised in the beacon/probe response. This will 3921 * allow the firmware to send auth/assoc frames with one 3922 * of the supported rates already, rather than having to 3923 * use a mandatory rate. 3924 * If we're the AP, we'll just assume mandatory rates at 3925 * this point, but we know nothing about the STA anyway. 3926 */ 3927 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3928 3929 return 0; 3930 } 3931 3932 static int 3933 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3934 struct iwl_mvm *mvm, 3935 struct ieee80211_vif *vif, 3936 struct ieee80211_sta *sta, 3937 const struct iwl_mvm_sta_state_ops *callbacks) 3938 { 3939 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3940 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3941 struct ieee80211_link_sta *link_sta; 3942 unsigned int link_id; 3943 3944 lockdep_assert_held(&mvm->mutex); 3945 3946 if (vif->type == NL80211_IFTYPE_AP) { 3947 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3948 mvmvif->ap_assoc_sta_count++; 3949 callbacks->mac_ctxt_changed(mvm, vif, false); 3950 3951 /* since the below is not for MLD API, it's ok to use 3952 * the default bss_conf 3953 */ 3954 if (!mvm->mld_api_is_used && 3955 (vif->bss_conf.he_support && 3956 !iwlwifi_mod_params.disable_11ax)) 3957 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3958 } else if (vif->type == NL80211_IFTYPE_STATION) { 3959 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3960 3961 callbacks->mac_ctxt_changed(mvm, vif, false); 3962 3963 if (!mvm->mld_api_is_used) 3964 goto out; 3965 3966 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3967 struct ieee80211_bss_conf *link_conf = 3968 link_conf_dereference_protected(vif, link_id); 3969 3970 if (WARN_ON(!link_conf)) 3971 return -EINVAL; 3972 if (!mvmvif->link[link_id]) 3973 continue; 3974 3975 iwl_mvm_link_changed(mvm, vif, link_conf, 3976 LINK_CONTEXT_MODIFY_ALL & 3977 ~LINK_CONTEXT_MODIFY_ACTIVE, 3978 true); 3979 } 3980 } 3981 3982 out: 3983 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3984 3985 return callbacks->update_sta(mvm, vif, sta); 3986 } 3987 3988 static int 3989 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3990 struct ieee80211_vif *vif, 3991 struct ieee80211_sta *sta, 3992 const struct iwl_mvm_sta_state_ops *callbacks) 3993 { 3994 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3995 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3996 3997 lockdep_assert_held(&mvm->mutex); 3998 3999 /* we don't support TDLS during DCM */ 4000 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4001 iwl_mvm_teardown_tdls_peers(mvm); 4002 4003 if (sta->tdls) { 4004 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4005 NL80211_TDLS_ENABLE_LINK); 4006 } else { 4007 /* enable beacon filtering */ 4008 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 4009 4010 mvmvif->authorized = 1; 4011 4012 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 4013 mvmvif->link_selection_res = vif->active_links; 4014 mvmvif->link_selection_primary = 4015 vif->active_links ? __ffs(vif->active_links) : 0; 4016 } 4017 4018 callbacks->mac_ctxt_changed(mvm, vif, false); 4019 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 4020 4021 memset(&mvmvif->last_esr_exit, 0, 4022 sizeof(mvmvif->last_esr_exit)); 4023 4024 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); 4025 4026 /* Block until FW notif will arrive */ 4027 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0); 4028 4029 /* when client is authorized (AP station marked as such), 4030 * try to enable the best link(s). 4031 */ 4032 if (vif->type == NL80211_IFTYPE_STATION && 4033 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4034 iwl_mvm_select_links(mvm, vif); 4035 } 4036 4037 mvm_sta->authorized = true; 4038 4039 /* MFP is set by default before the station is authorized. 4040 * Clear it here in case it's not used. 4041 */ 4042 if (!sta->mfp) { 4043 int ret = callbacks->update_sta(mvm, vif, sta); 4044 4045 if (ret) 4046 return ret; 4047 } 4048 4049 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4050 4051 return 0; 4052 } 4053 4054 static int 4055 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 4056 struct ieee80211_vif *vif, 4057 struct ieee80211_sta *sta, 4058 const struct iwl_mvm_sta_state_ops *callbacks) 4059 { 4060 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4061 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4062 4063 lockdep_assert_held(&mvm->mutex); 4064 4065 mvmsta->authorized = false; 4066 4067 /* once we move into assoc state, need to update rate scale to 4068 * disable using wide bandwidth 4069 */ 4070 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4071 4072 if (!sta->tdls) { 4073 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 4074 * yet to avoid sending high prio again for a little 4075 * time. 4076 */ 4077 mvmvif->authorized = 0; 4078 mvmvif->link_selection_res = 0; 4079 4080 /* disable beacon filtering */ 4081 iwl_mvm_disable_beacon_filter(mvm, vif); 4082 4083 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4084 &mvmvif->prevent_esr_done_wk); 4085 4086 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4087 &mvmvif->mlo_int_scan_wk); 4088 4089 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 4090 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4091 &mvmvif->unblock_esr_tmp_non_bss_wk); 4092 } 4093 4094 return 0; 4095 } 4096 4097 void iwl_mvm_smps_workaround(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4098 bool update) 4099 { 4100 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4101 4102 if (!iwl_mvm_has_rlc_offload(mvm) || 4103 iwl_fw_lookup_cmd_ver(mvm->fw, MAC_PM_POWER_TABLE, 0) >= 2) 4104 return; 4105 4106 mvmvif->ps_disabled = !vif->cfg.ps; 4107 4108 if (update) 4109 iwl_mvm_power_update_mac(mvm); 4110 } 4111 4112 /* Common part for MLD and non-MLD modes */ 4113 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4114 struct ieee80211_vif *vif, 4115 struct ieee80211_sta *sta, 4116 enum ieee80211_sta_state old_state, 4117 enum ieee80211_sta_state new_state, 4118 const struct iwl_mvm_sta_state_ops *callbacks) 4119 { 4120 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4121 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4122 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4123 struct ieee80211_link_sta *link_sta; 4124 unsigned int link_id; 4125 int ret; 4126 4127 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4128 sta->addr, old_state, new_state); 4129 4130 /* 4131 * If we are in a STA removal flow and in DQA mode: 4132 * 4133 * This is after the sync_rcu part, so the queues have already been 4134 * flushed. No more TXs on their way in mac80211's path, and no more in 4135 * the queues. 4136 * Also, we won't be getting any new TX frames for this station. 4137 * What we might have are deferred TX frames that need to be taken care 4138 * of. 4139 * 4140 * Drop any still-queued deferred-frame before removing the STA, and 4141 * make sure the worker is no longer handling frames for this STA. 4142 */ 4143 if (old_state == IEEE80211_STA_NONE && 4144 new_state == IEEE80211_STA_NOTEXIST) { 4145 flush_work(&mvm->add_stream_wk); 4146 4147 /* 4148 * No need to make sure deferred TX indication is off since the 4149 * worker will already remove it if it was on 4150 */ 4151 4152 /* 4153 * Additionally, reset the 40 MHz capability if we disconnected 4154 * from the AP now. 4155 */ 4156 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4157 4158 /* Also free dup data just in case any assertions below fail */ 4159 kfree(mvm_sta->dup_data); 4160 } 4161 4162 mutex_lock(&mvm->mutex); 4163 4164 /* this would be a mac80211 bug ... but don't crash, unless we had a 4165 * firmware crash while we were activating a link, in which case it is 4166 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4167 * recovery flow since we spit tons of error messages anyway. 4168 */ 4169 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4170 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4171 !mvmvif->link[link_id]->phy_ctxt)) { 4172 mutex_unlock(&mvm->mutex); 4173 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4174 &mvm->status) ? 0 : -EINVAL; 4175 } 4176 } 4177 4178 /* track whether or not the station is associated */ 4179 mvm_sta->sta_state = new_state; 4180 4181 if (old_state == IEEE80211_STA_NOTEXIST && 4182 new_state == IEEE80211_STA_NONE) { 4183 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4184 callbacks); 4185 if (ret < 0) 4186 goto out_unlock; 4187 } else if (old_state == IEEE80211_STA_NONE && 4188 new_state == IEEE80211_STA_AUTH) { 4189 /* 4190 * EBS may be disabled due to previous failures reported by FW. 4191 * Reset EBS status here assuming environment has been changed. 4192 */ 4193 mvm->last_ebs_successful = true; 4194 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4195 ret = 0; 4196 } else if (old_state == IEEE80211_STA_AUTH && 4197 new_state == IEEE80211_STA_ASSOC) { 4198 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4199 callbacks); 4200 } else if (old_state == IEEE80211_STA_ASSOC && 4201 new_state == IEEE80211_STA_AUTHORIZED) { 4202 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4203 callbacks); 4204 iwl_mvm_smps_workaround(mvm, vif, true); 4205 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4206 new_state == IEEE80211_STA_ASSOC) { 4207 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4208 callbacks); 4209 } else if (old_state == IEEE80211_STA_ASSOC && 4210 new_state == IEEE80211_STA_AUTH) { 4211 if (vif->type == NL80211_IFTYPE_AP) { 4212 mvmvif->ap_assoc_sta_count--; 4213 callbacks->mac_ctxt_changed(mvm, vif, false); 4214 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4215 iwl_mvm_stop_session_protection(mvm, vif); 4216 ret = 0; 4217 } else if (old_state == IEEE80211_STA_AUTH && 4218 new_state == IEEE80211_STA_NONE) { 4219 ret = 0; 4220 } else if (old_state == IEEE80211_STA_NONE && 4221 new_state == IEEE80211_STA_NOTEXIST) { 4222 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4223 iwl_mvm_stop_session_protection(mvm, vif); 4224 mvmvif->ap_sta = NULL; 4225 } 4226 ret = callbacks->rm_sta(mvm, vif, sta); 4227 if (sta->tdls) { 4228 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4229 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4230 NL80211_TDLS_DISABLE_LINK); 4231 } 4232 4233 if (unlikely(ret && 4234 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4235 &mvm->status))) 4236 ret = 0; 4237 } else { 4238 ret = -EIO; 4239 } 4240 out_unlock: 4241 mutex_unlock(&mvm->mutex); 4242 4243 if (sta->tdls && ret == 0) { 4244 if (old_state == IEEE80211_STA_NOTEXIST && 4245 new_state == IEEE80211_STA_NONE) 4246 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4247 else if (old_state == IEEE80211_STA_NONE && 4248 new_state == IEEE80211_STA_NOTEXIST) 4249 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4250 } 4251 4252 return ret; 4253 } 4254 4255 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, int radio_idx, 4256 u32 value) 4257 { 4258 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4259 4260 mvm->rts_threshold = value; 4261 4262 return 0; 4263 } 4264 4265 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4266 struct ieee80211_link_sta *link_sta, u32 changed) 4267 { 4268 struct ieee80211_sta *sta = link_sta->sta; 4269 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4270 4271 if (changed & (IEEE80211_RC_BW_CHANGED | 4272 IEEE80211_RC_SUPP_RATES_CHANGED | 4273 IEEE80211_RC_NSS_CHANGED)) 4274 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4275 4276 if (vif->type == NL80211_IFTYPE_STATION && 4277 changed & IEEE80211_RC_NSS_CHANGED) 4278 iwl_mvm_sf_update(mvm, vif, false); 4279 } 4280 4281 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4282 struct ieee80211_vif *vif, 4283 unsigned int link_id, u16 ac, 4284 const struct ieee80211_tx_queue_params *params) 4285 { 4286 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4287 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4288 4289 mvmvif->deflink.queue_params[ac] = *params; 4290 4291 /* 4292 * No need to update right away, we'll get BSS_CHANGED_QOS 4293 * The exception is P2P_DEVICE interface which needs immediate update. 4294 */ 4295 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4296 guard(mvm)(mvm); 4297 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4298 } 4299 return 0; 4300 } 4301 4302 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4303 struct ieee80211_vif *vif, 4304 struct ieee80211_prep_tx_info *info) 4305 { 4306 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4307 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4308 4309 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4310 return; 4311 4312 guard(mvm)(mvm); 4313 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4314 } 4315 4316 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4317 struct ieee80211_vif *vif, 4318 struct ieee80211_prep_tx_info *info) 4319 { 4320 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4321 4322 /* for successful cases (auth/assoc), don't cancel session protection */ 4323 if (info->success) 4324 return; 4325 4326 guard(mvm)(mvm); 4327 iwl_mvm_stop_session_protection(mvm, vif); 4328 } 4329 4330 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4331 struct ieee80211_vif *vif, 4332 struct cfg80211_sched_scan_request *req, 4333 struct ieee80211_scan_ies *ies) 4334 { 4335 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4336 4337 guard(mvm)(mvm); 4338 4339 if (!vif->cfg.idle) 4340 return -EBUSY; 4341 4342 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4343 } 4344 4345 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4346 struct ieee80211_vif *vif) 4347 { 4348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4349 int ret; 4350 4351 mutex_lock(&mvm->mutex); 4352 4353 /* Due to a race condition, it's possible that mac80211 asks 4354 * us to stop a sched_scan when it's already stopped. This 4355 * can happen, for instance, if we stopped the scan ourselves, 4356 * called ieee80211_sched_scan_stopped() and the userspace called 4357 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4358 * could run. To handle this, simply return if the scan is 4359 * not running. 4360 */ 4361 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4362 mutex_unlock(&mvm->mutex); 4363 return 0; 4364 } 4365 4366 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4367 mutex_unlock(&mvm->mutex); 4368 iwl_mvm_wait_for_async_handlers(mvm); 4369 4370 return ret; 4371 } 4372 4373 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4374 enum set_key_cmd cmd, 4375 struct ieee80211_vif *vif, 4376 struct ieee80211_sta *sta, 4377 struct ieee80211_key_conf *key) 4378 { 4379 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4380 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4381 struct iwl_mvm_sta *mvmsta = NULL; 4382 struct iwl_mvm_key_pn *ptk_pn = NULL; 4383 int keyidx = key->keyidx; 4384 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4385 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4386 int ret, i; 4387 u8 key_offset; 4388 4389 if (sta) 4390 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4391 4392 switch (key->cipher) { 4393 case WLAN_CIPHER_SUITE_TKIP: 4394 if (!mvm->trans->mac_cfg->gen2) { 4395 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4396 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4397 } else if (vif->type == NL80211_IFTYPE_STATION) { 4398 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4399 } else { 4400 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4401 return -EOPNOTSUPP; 4402 } 4403 break; 4404 case WLAN_CIPHER_SUITE_CCMP: 4405 case WLAN_CIPHER_SUITE_GCMP: 4406 case WLAN_CIPHER_SUITE_GCMP_256: 4407 if (!iwl_mvm_has_new_tx_api(mvm)) 4408 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4409 break; 4410 case WLAN_CIPHER_SUITE_AES_CMAC: 4411 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4412 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4413 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4414 break; 4415 case WLAN_CIPHER_SUITE_WEP40: 4416 case WLAN_CIPHER_SUITE_WEP104: 4417 if (vif->type == NL80211_IFTYPE_STATION) 4418 break; 4419 if (iwl_mvm_has_new_tx_api(mvm)) 4420 return -EOPNOTSUPP; 4421 /* support HW crypto on TX */ 4422 return 0; 4423 default: 4424 return -EOPNOTSUPP; 4425 } 4426 4427 switch (cmd) { 4428 case SET_KEY: 4429 if (vif->type == NL80211_IFTYPE_STATION && 4430 (keyidx == 6 || keyidx == 7)) 4431 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4432 key); 4433 4434 if ((vif->type == NL80211_IFTYPE_ADHOC || 4435 vif->type == NL80211_IFTYPE_AP) && !sta) { 4436 /* 4437 * GTK on AP interface is a TX-only key, return 0; 4438 * on IBSS they're per-station and because we're lazy 4439 * we don't support them for RX, so do the same. 4440 * CMAC/GMAC in AP/IBSS modes must be done in software 4441 * on older NICs. 4442 * 4443 * Except, of course, beacon protection - it must be 4444 * offloaded since we just set a beacon template, and 4445 * then we must also offload the IGTK (not just BIGTK) 4446 * for firmware reasons. 4447 * 4448 * So just check for beacon protection - if we don't 4449 * have it we cannot get here with keyidx >= 6, and 4450 * if we do have it we need to send the key to FW in 4451 * all cases (CMAC/GMAC). 4452 */ 4453 if (!wiphy_ext_feature_isset(hw->wiphy, 4454 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4455 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4456 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4457 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4458 ret = -EOPNOTSUPP; 4459 break; 4460 } 4461 4462 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4463 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4464 !iwl_mvm_has_new_tx_api(mvm)) { 4465 key->hw_key_idx = STA_KEY_IDX_INVALID; 4466 ret = 0; 4467 break; 4468 } 4469 4470 if (!mvmvif->ap_ibss_active) { 4471 for (i = 0; 4472 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4473 i++) { 4474 if (!mvmvif->ap_early_keys[i]) { 4475 mvmvif->ap_early_keys[i] = key; 4476 break; 4477 } 4478 } 4479 4480 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4481 ret = -ENOSPC; 4482 else 4483 ret = 0; 4484 4485 break; 4486 } 4487 } 4488 4489 /* During FW restart, in order to restore the state as it was, 4490 * don't try to reprogram keys we previously failed for. 4491 */ 4492 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4493 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4494 IWL_DEBUG_MAC80211(mvm, 4495 "skip invalid idx key programming during restart\n"); 4496 ret = 0; 4497 break; 4498 } 4499 4500 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4501 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4502 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4503 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4504 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4505 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4506 struct ieee80211_key_seq seq; 4507 int tid, q; 4508 4509 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4510 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4511 mvm->trans->info.num_rxqs), 4512 GFP_KERNEL); 4513 if (!ptk_pn) { 4514 ret = -ENOMEM; 4515 break; 4516 } 4517 4518 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4519 ieee80211_get_key_rx_seq(key, tid, &seq); 4520 for (q = 0; q < mvm->trans->info.num_rxqs; q++) 4521 memcpy(ptk_pn->q[q].pn[tid], 4522 seq.ccmp.pn, 4523 IEEE80211_CCMP_PN_LEN); 4524 } 4525 4526 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4527 } 4528 4529 /* in HW restart reuse the index, otherwise request a new one */ 4530 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4531 key_offset = key->hw_key_idx; 4532 else 4533 key_offset = STA_KEY_IDX_INVALID; 4534 4535 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4536 mvmsta->pairwise_cipher = key->cipher; 4537 4538 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4539 sta ? sta->addr : NULL, key->keyidx); 4540 4541 if (sec_key_ver) 4542 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4543 else 4544 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4545 4546 if (ret) { 4547 IWL_WARN(mvm, "set key failed\n"); 4548 key->hw_key_idx = STA_KEY_IDX_INVALID; 4549 if (ptk_pn) { 4550 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4551 kfree(ptk_pn); 4552 } 4553 /* 4554 * can't add key for RX, but we don't need it 4555 * in the device for TX so still return 0, 4556 * unless we have new TX API where we cannot 4557 * put key material into the TX_CMD 4558 */ 4559 if (iwl_mvm_has_new_tx_api(mvm)) 4560 ret = -EOPNOTSUPP; 4561 else 4562 ret = 0; 4563 } 4564 4565 break; 4566 case DISABLE_KEY: 4567 if (vif->type == NL80211_IFTYPE_STATION && 4568 (keyidx == 6 || keyidx == 7)) 4569 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4570 NULL); 4571 4572 ret = -ENOENT; 4573 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4574 if (mvmvif->ap_early_keys[i] == key) { 4575 mvmvif->ap_early_keys[i] = NULL; 4576 ret = 0; 4577 } 4578 } 4579 4580 /* found in pending list - don't do anything else */ 4581 if (ret == 0) 4582 break; 4583 4584 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4585 ret = 0; 4586 break; 4587 } 4588 4589 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4590 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4591 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4592 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4593 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4594 ptk_pn = rcu_dereference_protected( 4595 mvmsta->ptk_pn[keyidx], 4596 lockdep_is_held(&mvm->mutex)); 4597 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4598 if (ptk_pn) 4599 kfree_rcu(ptk_pn, rcu_head); 4600 } 4601 4602 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4603 if (sec_key_ver) 4604 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4605 else 4606 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4607 break; 4608 default: 4609 ret = -EINVAL; 4610 } 4611 4612 return ret; 4613 } 4614 4615 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4616 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4617 struct ieee80211_key_conf *key) 4618 { 4619 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4620 4621 guard(mvm)(mvm); 4622 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4623 } 4624 4625 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4626 struct ieee80211_vif *vif, 4627 struct ieee80211_key_conf *keyconf, 4628 struct ieee80211_sta *sta, 4629 u32 iv32, u16 *phase1key) 4630 { 4631 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4632 4633 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4634 return; 4635 4636 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4637 } 4638 4639 4640 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4641 struct iwl_rx_packet *pkt, void *data) 4642 { 4643 struct iwl_mvm *mvm = 4644 container_of(notif_wait, struct iwl_mvm, notif_wait); 4645 struct iwl_hs20_roc_res *resp; 4646 int resp_len = iwl_rx_packet_payload_len(pkt); 4647 struct iwl_mvm_time_event_data *te_data = data; 4648 4649 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4650 return true; 4651 4652 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4653 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4654 return true; 4655 } 4656 4657 resp = (void *)pkt->data; 4658 4659 IWL_DEBUG_TE(mvm, 4660 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4661 resp->status, resp->event_unique_id); 4662 4663 te_data->uid = le32_to_cpu(resp->event_unique_id); 4664 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4665 te_data->uid); 4666 4667 spin_lock_bh(&mvm->time_event_lock); 4668 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4669 spin_unlock_bh(&mvm->time_event_lock); 4670 4671 return true; 4672 } 4673 4674 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4675 struct ieee80211_channel *channel, 4676 struct ieee80211_vif *vif, 4677 int duration) 4678 { 4679 int res; 4680 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4681 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4682 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4683 struct iwl_notification_wait wait_time_event; 4684 u32 req_dur, delay; 4685 struct iwl_hs20_roc_req aux_roc_req = { 4686 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4687 .id_and_color = 4688 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4689 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4690 }; 4691 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4692 &aux_roc_req.channel_info); 4693 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4694 4695 /* Set the channel info data */ 4696 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4697 iwl_mvm_phy_band_from_nl80211(channel->band), 4698 IWL_PHY_CHANNEL_MODE20, 4699 0); 4700 4701 /* Set the time and duration */ 4702 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4703 4704 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4705 tail->duration = cpu_to_le32(req_dur); 4706 tail->apply_time_max_delay = cpu_to_le32(delay); 4707 4708 IWL_DEBUG_TE(mvm, 4709 "ROC: Requesting to remain on channel %u for %ums\n", 4710 channel->hw_value, req_dur); 4711 IWL_DEBUG_TE(mvm, 4712 "\t(requested = %ums, max_delay = %ums)\n", 4713 duration, delay); 4714 4715 /* Set the node address */ 4716 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4717 4718 lockdep_assert_held(&mvm->mutex); 4719 4720 spin_lock_bh(&mvm->time_event_lock); 4721 4722 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4723 spin_unlock_bh(&mvm->time_event_lock); 4724 return -EIO; 4725 } 4726 4727 te_data->vif = vif; 4728 te_data->duration = duration; 4729 te_data->id = HOT_SPOT_CMD; 4730 4731 spin_unlock_bh(&mvm->time_event_lock); 4732 4733 /* 4734 * Use a notification wait, which really just processes the 4735 * command response and doesn't wait for anything, in order 4736 * to be able to process the response and get the UID inside 4737 * the RX path. Using CMD_WANT_SKB doesn't work because it 4738 * stores the buffer and then wakes up this thread, by which 4739 * time another notification (that the time event started) 4740 * might already be processed unsuccessfully. 4741 */ 4742 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4743 time_event_response, 4744 ARRAY_SIZE(time_event_response), 4745 iwl_mvm_rx_aux_roc, te_data); 4746 4747 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4748 &aux_roc_req); 4749 4750 if (res) { 4751 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4752 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4753 goto out_clear_te; 4754 } 4755 4756 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4757 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4758 /* should never fail */ 4759 WARN_ON_ONCE(res); 4760 4761 if (res) { 4762 out_clear_te: 4763 spin_lock_bh(&mvm->time_event_lock); 4764 iwl_mvm_te_clear_data(mvm, te_data); 4765 spin_unlock_bh(&mvm->time_event_lock); 4766 } 4767 4768 return res; 4769 } 4770 4771 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4772 { 4773 int ret = 0; 4774 4775 lockdep_assert_held(&mvm->mutex); 4776 4777 if (!fw_has_capa(&mvm->fw->ucode_capa, 4778 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4779 IWL_ERR(mvm, "hotspot not supported\n"); 4780 return -EINVAL; 4781 } 4782 4783 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4784 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4785 WARN(ret, "Failed to allocate aux station"); 4786 } 4787 4788 return ret; 4789 } 4790 4791 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4792 { 4793 int ret; 4794 4795 lockdep_assert_held(&mvm->mutex); 4796 4797 ret = iwl_mvm_binding_add_vif(mvm, vif); 4798 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4799 return ret; 4800 4801 /* The station and queue allocation must be done only after the binding 4802 * is done, as otherwise the FW might incorrectly configure its state. 4803 */ 4804 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4805 } 4806 4807 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4808 struct ieee80211_vif *vif, 4809 struct ieee80211_channel *channel, 4810 int duration, 4811 enum ieee80211_roc_type type) 4812 { 4813 static const struct iwl_mvm_roc_ops ops = { 4814 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4815 .link = iwl_mvm_roc_link, 4816 }; 4817 4818 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4819 } 4820 4821 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4822 struct ieee80211_channel *channel, 4823 struct ieee80211_vif *vif, 4824 int duration) 4825 { 4826 int ret; 4827 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4828 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4829 IWL_FW_CMD_VER_UNKNOWN); 4830 4831 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4832 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4833 } else if (fw_ver >= 3) { 4834 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4835 ROC_ACTIVITY_HOTSPOT); 4836 } else { 4837 ret = -EOPNOTSUPP; 4838 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4839 } 4840 4841 return ret; 4842 } 4843 4844 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4845 struct ieee80211_channel *channel, 4846 struct ieee80211_vif *vif, 4847 int duration, 4848 enum ieee80211_roc_type type) 4849 { 4850 enum iwl_roc_activity activity; 4851 int ret; 4852 4853 lockdep_assert_held(&mvm->mutex); 4854 4855 switch (type) { 4856 case IEEE80211_ROC_TYPE_NORMAL: 4857 activity = ROC_ACTIVITY_P2P_DISC; 4858 break; 4859 case IEEE80211_ROC_TYPE_MGMT_TX: 4860 activity = ROC_ACTIVITY_P2P_NEG; 4861 break; 4862 default: 4863 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4864 return -EINVAL; 4865 } 4866 4867 ret = iwl_mvm_mld_add_aux_sta(mvm, 4868 iwl_mvm_get_lmac_id(mvm, channel->band)); 4869 if (ret) 4870 return ret; 4871 4872 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4873 } 4874 4875 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4876 struct ieee80211_vif *vif, 4877 struct ieee80211_channel *channel) 4878 { 4879 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4880 struct cfg80211_chan_def chandef; 4881 int i; 4882 4883 lockdep_assert_held(&mvm->mutex); 4884 4885 if (mvmvif->deflink.phy_ctxt && 4886 channel == mvmvif->deflink.phy_ctxt->channel) 4887 return 0; 4888 4889 /* Try using a PHY context that is already in use */ 4890 for (i = 0; i < NUM_PHY_CTX; i++) { 4891 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4892 4893 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4894 continue; 4895 4896 if (channel == phy_ctxt->channel) { 4897 if (mvmvif->deflink.phy_ctxt) 4898 iwl_mvm_phy_ctxt_unref(mvm, 4899 mvmvif->deflink.phy_ctxt); 4900 4901 mvmvif->deflink.phy_ctxt = phy_ctxt; 4902 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4903 return 0; 4904 } 4905 } 4906 4907 /* We already have a phy_ctxt, but it's not on the right channel */ 4908 if (mvmvif->deflink.phy_ctxt) 4909 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4910 4911 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4912 if (!mvmvif->deflink.phy_ctxt) 4913 return -ENOSPC; 4914 4915 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4916 4917 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4918 &chandef, NULL, 1, 1); 4919 } 4920 4921 /* Execute the common part for MLD and non-MLD modes */ 4922 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4923 struct ieee80211_channel *channel, int duration, 4924 enum ieee80211_roc_type type, 4925 const struct iwl_mvm_roc_ops *ops) 4926 { 4927 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4928 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); 4929 u32 lmac_id; 4930 int ret; 4931 4932 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4933 duration, type); 4934 4935 /* 4936 * Flush the done work, just in case it's still pending, so that 4937 * the work it does can complete and we can accept new frames. 4938 */ 4939 flush_work(&mvm->roc_done_wk); 4940 4941 if (!IS_ERR_OR_NULL(bss_vif)) { 4942 ret = iwl_mvm_block_esr_sync(mvm, bss_vif, 4943 IWL_MVM_ESR_BLOCKED_ROC); 4944 if (ret) 4945 return ret; 4946 } 4947 4948 guard(mvm)(mvm); 4949 4950 switch (vif->type) { 4951 case NL80211_IFTYPE_STATION: 4952 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4953 4954 /* Use aux roc framework (HS20) */ 4955 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4956 if (!ret) 4957 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4958 return ret; 4959 case NL80211_IFTYPE_P2P_DEVICE: 4960 /* handle below */ 4961 break; 4962 default: 4963 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4964 return -EINVAL; 4965 } 4966 4967 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4968 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4969 return ret; 4970 } 4971 4972 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4973 if (ret) 4974 return ret; 4975 4976 ret = ops->link(mvm, vif); 4977 if (ret) 4978 return ret; 4979 4980 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4981 } 4982 4983 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4984 struct ieee80211_vif *vif) 4985 { 4986 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4987 4988 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4989 4990 iwl_mvm_stop_roc(mvm, vif); 4991 4992 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4993 return 0; 4994 } 4995 4996 struct iwl_mvm_chanctx_usage_data { 4997 struct iwl_mvm *mvm; 4998 struct ieee80211_chanctx_conf *ctx; 4999 bool use_def; 5000 }; 5001 5002 static void iwl_mvm_chanctx_usage_iter(void *_data, u8 *mac, 5003 struct ieee80211_vif *vif) 5004 { 5005 struct iwl_mvm_chanctx_usage_data *data = _data; 5006 struct ieee80211_bss_conf *link_conf; 5007 int link_id; 5008 5009 for_each_vif_active_link(vif, link_conf, link_id) { 5010 if (rcu_access_pointer(link_conf->chanctx_conf) != data->ctx) 5011 continue; 5012 5013 if (iwl_mvm_enable_fils(data->mvm, vif, data->ctx)) 5014 data->use_def = true; 5015 5016 if (vif->type == NL80211_IFTYPE_AP && link_conf->ftmr_params) 5017 data->use_def = true; 5018 } 5019 } 5020 5021 struct cfg80211_chan_def * 5022 iwl_mvm_chanctx_def(struct iwl_mvm *mvm, struct ieee80211_chanctx_conf *ctx) 5023 { 5024 struct iwl_mvm_chanctx_usage_data data = { 5025 .mvm = mvm, 5026 .ctx = ctx, 5027 .use_def = false, 5028 }; 5029 5030 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 5031 IEEE80211_IFACE_ITER_NORMAL, 5032 iwl_mvm_chanctx_usage_iter, 5033 &data); 5034 5035 return data.use_def ? &ctx->def : &ctx->min_def; 5036 } 5037 5038 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 5039 struct ieee80211_chanctx_conf *ctx) 5040 { 5041 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5042 struct iwl_mvm_phy_ctxt *phy_ctxt; 5043 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5044 int ret; 5045 5046 lockdep_assert_held(&mvm->mutex); 5047 5048 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 5049 5050 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 5051 if (!phy_ctxt) { 5052 ret = -ENOSPC; 5053 goto out; 5054 } 5055 5056 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 5057 ctx->rx_chains_static, 5058 ctx->rx_chains_dynamic); 5059 if (ret) { 5060 IWL_ERR(mvm, "Failed to add PHY context\n"); 5061 goto out; 5062 } 5063 5064 *phy_ctxt_id = phy_ctxt->id; 5065 out: 5066 return ret; 5067 } 5068 5069 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 5070 struct ieee80211_chanctx_conf *ctx) 5071 { 5072 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5073 5074 guard(mvm)(mvm); 5075 return __iwl_mvm_add_chanctx(mvm, ctx); 5076 } 5077 5078 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 5079 struct ieee80211_chanctx_conf *ctx) 5080 { 5081 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5082 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5083 5084 lockdep_assert_held(&mvm->mutex); 5085 5086 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 5087 } 5088 5089 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 5090 struct ieee80211_chanctx_conf *ctx) 5091 { 5092 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5093 5094 guard(mvm)(mvm); 5095 __iwl_mvm_remove_chanctx(mvm, ctx); 5096 } 5097 5098 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 5099 struct ieee80211_chanctx_conf *ctx, u32 changed) 5100 { 5101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5102 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5103 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5104 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5105 5106 if (WARN_ONCE((phy_ctxt->ref > 1) && 5107 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 5108 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 5109 IEEE80211_CHANCTX_CHANGE_RADAR | 5110 IEEE80211_CHANCTX_CHANGE_MIN_DEF)), 5111 "Cannot change PHY. Ref=%d, changed=0x%X\n", 5112 phy_ctxt->ref, changed)) 5113 return; 5114 5115 guard(mvm)(mvm); 5116 5117 /* we are only changing the min_width, may be a noop */ 5118 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) { 5119 if (phy_ctxt->width == def->width) 5120 return; 5121 5122 /* we are just toggling between 20_NOHT and 20 */ 5123 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5124 def->width <= NL80211_CHAN_WIDTH_20) 5125 return; 5126 } 5127 5128 iwl_mvm_bt_coex_vif_change(mvm); 5129 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5130 ctx->rx_chains_static, 5131 ctx->rx_chains_dynamic); 5132 } 5133 5134 /* 5135 * This function executes the common part for MLD and non-MLD modes. 5136 * 5137 * Returns true if we're done assigning the chanctx 5138 * (either on failure or success) 5139 */ 5140 static bool 5141 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5142 struct ieee80211_vif *vif, 5143 struct ieee80211_chanctx_conf *ctx, 5144 bool switching_chanctx, int *ret) 5145 { 5146 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5147 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5148 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5149 5150 lockdep_assert_held(&mvm->mutex); 5151 5152 mvmvif->deflink.phy_ctxt = phy_ctxt; 5153 5154 switch (vif->type) { 5155 case NL80211_IFTYPE_AP: 5156 /* only needed if we're switching chanctx (i.e. during CSA) */ 5157 if (switching_chanctx) { 5158 mvmvif->ap_ibss_active = true; 5159 break; 5160 } 5161 fallthrough; 5162 case NL80211_IFTYPE_ADHOC: 5163 /* 5164 * The AP binding flow is handled as part of the start_ap flow 5165 * (in bss_info_changed), similarly for IBSS. 5166 */ 5167 *ret = 0; 5168 return true; 5169 case NL80211_IFTYPE_STATION: 5170 break; 5171 case NL80211_IFTYPE_MONITOR: 5172 /* always disable PS when a monitor interface is active */ 5173 mvmvif->ps_disabled = true; 5174 break; 5175 default: 5176 *ret = -EINVAL; 5177 return true; 5178 } 5179 return false; 5180 } 5181 5182 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5183 struct ieee80211_vif *vif, 5184 struct ieee80211_bss_conf *link_conf, 5185 struct ieee80211_chanctx_conf *ctx, 5186 bool switching_chanctx) 5187 { 5188 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5189 int ret; 5190 5191 if (WARN_ON(!link_conf)) 5192 return -EINVAL; 5193 5194 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5195 switching_chanctx, &ret)) 5196 goto out; 5197 5198 ret = iwl_mvm_binding_add_vif(mvm, vif); 5199 if (ret) 5200 goto out; 5201 5202 /* 5203 * Power state must be updated before quotas, 5204 * otherwise fw will complain. 5205 */ 5206 iwl_mvm_power_update_mac(mvm); 5207 5208 /* Setting the quota at this stage is only required for monitor 5209 * interfaces. For the other types, the bss_info changed flow 5210 * will handle quota settings. 5211 */ 5212 if (vif->type == NL80211_IFTYPE_MONITOR) { 5213 mvmvif->monitor_active = true; 5214 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5215 if (ret) 5216 goto out_remove_binding; 5217 5218 ret = iwl_mvm_add_snif_sta(mvm, vif); 5219 if (ret) 5220 goto out_remove_binding; 5221 5222 } 5223 5224 /* Handle binding during CSA */ 5225 if (vif->type == NL80211_IFTYPE_AP) { 5226 iwl_mvm_update_quotas(mvm, false, NULL); 5227 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5228 } 5229 5230 if (vif->type == NL80211_IFTYPE_STATION) { 5231 if (!switching_chanctx) { 5232 mvmvif->csa_bcn_pending = false; 5233 goto out; 5234 } 5235 5236 mvmvif->csa_bcn_pending = true; 5237 5238 if (!fw_has_capa(&mvm->fw->ucode_capa, 5239 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5240 u32 duration = 5 * vif->bss_conf.beacon_int; 5241 5242 /* Protect the session to make sure we hear the first 5243 * beacon on the new channel. 5244 */ 5245 iwl_mvm_protect_session(mvm, vif, duration, duration, 5246 vif->bss_conf.beacon_int / 2, 5247 true); 5248 } 5249 5250 iwl_mvm_update_quotas(mvm, false, NULL); 5251 5252 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5253 link_conf, 5254 false); 5255 } 5256 5257 goto out; 5258 5259 out_remove_binding: 5260 iwl_mvm_binding_remove_vif(mvm, vif); 5261 iwl_mvm_power_update_mac(mvm); 5262 out: 5263 if (ret) 5264 mvmvif->deflink.phy_ctxt = NULL; 5265 return ret; 5266 } 5267 5268 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5269 struct ieee80211_vif *vif, 5270 struct ieee80211_bss_conf *link_conf, 5271 struct ieee80211_chanctx_conf *ctx) 5272 { 5273 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5274 5275 guard(mvm)(mvm); 5276 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5277 } 5278 5279 /* 5280 * This function executes the common part for MLD and non-MLD modes. 5281 * 5282 * Returns if chanctx unassign chanctx is done 5283 * (either on failure or success) 5284 */ 5285 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5286 struct ieee80211_vif *vif, 5287 bool switching_chanctx) 5288 { 5289 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5290 5291 lockdep_assert_held(&mvm->mutex); 5292 iwl_mvm_remove_time_event(mvm, mvmvif, 5293 &mvmvif->time_event_data); 5294 5295 switch (vif->type) { 5296 case NL80211_IFTYPE_ADHOC: 5297 return true; 5298 case NL80211_IFTYPE_MONITOR: 5299 mvmvif->monitor_active = false; 5300 mvmvif->ps_disabled = false; 5301 break; 5302 case NL80211_IFTYPE_AP: 5303 /* This part is triggered only during CSA */ 5304 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5305 return true; 5306 5307 mvmvif->csa_countdown = false; 5308 5309 /* Set CS bit on all the stations */ 5310 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5311 5312 /* Save blocked iface, the timeout is set on the next beacon */ 5313 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5314 5315 mvmvif->ap_ibss_active = false; 5316 break; 5317 default: 5318 break; 5319 } 5320 return false; 5321 } 5322 5323 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5324 struct ieee80211_vif *vif, 5325 struct ieee80211_bss_conf *link_conf, 5326 struct ieee80211_chanctx_conf *ctx, 5327 bool switching_chanctx) 5328 { 5329 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5330 struct ieee80211_vif *disabled_vif = NULL; 5331 5332 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5333 goto out; 5334 5335 if (vif->type == NL80211_IFTYPE_MONITOR) 5336 iwl_mvm_rm_snif_sta(mvm, vif); 5337 5338 5339 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5340 disabled_vif = vif; 5341 if (!fw_has_capa(&mvm->fw->ucode_capa, 5342 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5343 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5344 } 5345 5346 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5347 iwl_mvm_binding_remove_vif(mvm, vif); 5348 5349 out: 5350 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5351 switching_chanctx) 5352 return; 5353 mvmvif->deflink.phy_ctxt = NULL; 5354 iwl_mvm_power_update_mac(mvm); 5355 } 5356 5357 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5358 struct ieee80211_vif *vif, 5359 struct ieee80211_bss_conf *link_conf, 5360 struct ieee80211_chanctx_conf *ctx) 5361 { 5362 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5363 5364 guard(mvm)(mvm); 5365 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5366 } 5367 5368 static int 5369 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5370 struct ieee80211_vif_chanctx_switch *vifs, 5371 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5372 { 5373 int ret; 5374 5375 guard(mvm)(mvm); 5376 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5377 vifs[0].old_ctx, true); 5378 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5379 5380 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5381 if (ret) { 5382 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5383 goto out_reassign; 5384 } 5385 5386 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5387 vifs[0].new_ctx, true); 5388 if (ret) { 5389 IWL_ERR(mvm, 5390 "failed to assign new_ctx during channel switch\n"); 5391 goto out_remove; 5392 } 5393 5394 /* we don't support TDLS during DCM - can be caused by channel switch */ 5395 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5396 iwl_mvm_teardown_tdls_peers(mvm); 5397 5398 return 0; 5399 5400 out_remove: 5401 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5402 5403 out_reassign: 5404 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5405 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5406 goto out_restart; 5407 } 5408 5409 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5410 vifs[0].old_ctx, true)) { 5411 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5412 goto out_restart; 5413 } 5414 5415 return ret; 5416 5417 out_restart: 5418 /* things keep failing, better restart the hw */ 5419 iwl_force_nmi(mvm->trans); 5420 return ret; 5421 } 5422 5423 static int 5424 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5425 struct ieee80211_vif_chanctx_switch *vifs, 5426 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5427 { 5428 int ret; 5429 5430 guard(mvm)(mvm); 5431 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5432 vifs[0].old_ctx, true); 5433 5434 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5435 vifs[0].new_ctx, true); 5436 if (ret) { 5437 IWL_ERR(mvm, 5438 "failed to assign new_ctx during channel switch\n"); 5439 goto out_reassign; 5440 } 5441 5442 return 0; 5443 5444 out_reassign: 5445 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5446 vifs[0].old_ctx, true)) { 5447 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5448 goto out_restart; 5449 } 5450 5451 return ret; 5452 5453 out_restart: 5454 /* things keep failing, better restart the hw */ 5455 iwl_force_nmi(mvm->trans); 5456 return ret; 5457 } 5458 5459 /* Execute the common part for both MLD and non-MLD modes */ 5460 int 5461 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5462 struct ieee80211_vif_chanctx_switch *vifs, 5463 int n_vifs, 5464 enum ieee80211_chanctx_switch_mode mode, 5465 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5466 { 5467 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5468 int ret; 5469 5470 /* we only support a single-vif right now */ 5471 if (n_vifs > 1) 5472 return -EOPNOTSUPP; 5473 5474 switch (mode) { 5475 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5476 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5477 break; 5478 case CHANCTX_SWMODE_REASSIGN_VIF: 5479 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5480 break; 5481 default: 5482 ret = -EOPNOTSUPP; 5483 break; 5484 } 5485 5486 return ret; 5487 } 5488 5489 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5490 struct ieee80211_vif_chanctx_switch *vifs, 5491 int n_vifs, 5492 enum ieee80211_chanctx_switch_mode mode) 5493 { 5494 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5495 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5496 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5497 }; 5498 5499 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5500 } 5501 5502 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5503 { 5504 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5505 5506 return mvm->ibss_manager; 5507 } 5508 5509 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5510 bool set) 5511 { 5512 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5513 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5514 5515 if (!mvm_sta || !mvm_sta->vif) { 5516 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5517 return -EINVAL; 5518 } 5519 5520 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5521 &mvm_sta->vif->bss_conf); 5522 } 5523 5524 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5525 struct ieee80211_channel_switch *chsw) 5526 { 5527 /* By implementing this operation, we prevent mac80211 from 5528 * starting its own channel switch timer, so that we can call 5529 * ieee80211_chswitch_done() ourselves at the right time 5530 * (which is when the absence time event starts). 5531 */ 5532 5533 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5534 "dummy channel switch op\n"); 5535 } 5536 5537 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5538 struct ieee80211_vif *vif, 5539 struct ieee80211_channel_switch *chsw) 5540 { 5541 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5542 struct iwl_chan_switch_te_cmd cmd = { 5543 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5544 mvmvif->color)), 5545 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5546 .tsf = cpu_to_le32(chsw->timestamp), 5547 .cs_count = chsw->count, 5548 .cs_mode = chsw->block_tx, 5549 }; 5550 5551 lockdep_assert_held(&mvm->mutex); 5552 5553 if (chsw->delay) 5554 cmd.cs_delayed_bcn_count = 5555 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5556 5557 return iwl_mvm_send_cmd_pdu(mvm, 5558 WIDE_ID(MAC_CONF_GROUP, 5559 CHANNEL_SWITCH_TIME_EVENT_CMD), 5560 0, sizeof(cmd), &cmd); 5561 } 5562 5563 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5564 struct ieee80211_vif *vif, 5565 struct ieee80211_channel_switch *chsw) 5566 { 5567 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5568 u32 apply_time; 5569 5570 /* Schedule the time event to a bit before beacon 1, 5571 * to make sure we're in the new channel when the 5572 * GO/AP arrives. In case count <= 1 immediately schedule the 5573 * TE (this might result with some packet loss or connection 5574 * loss). 5575 */ 5576 if (chsw->count <= 1) 5577 apply_time = 0; 5578 else 5579 apply_time = chsw->device_timestamp + 5580 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5581 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5582 5583 if (chsw->block_tx) 5584 iwl_mvm_csa_client_absent(mvm, vif); 5585 5586 if (mvmvif->bf_enabled) { 5587 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5588 5589 if (ret) 5590 return ret; 5591 } 5592 5593 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5594 apply_time); 5595 5596 return 0; 5597 } 5598 5599 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5600 { 5601 int i; 5602 5603 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5604 struct iwl_mvm_txq *mvmtxq = 5605 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5606 5607 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5608 } 5609 } 5610 5611 #define IWL_MAX_CSA_BLOCK_TX 1500 5612 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5613 struct ieee80211_vif *vif, 5614 struct ieee80211_channel_switch *chsw) 5615 { 5616 struct ieee80211_vif *csa_vif; 5617 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5618 struct iwl_mvm_txq *mvmtxq; 5619 int ret; 5620 5621 lockdep_assert_held(&mvm->mutex); 5622 5623 mvmvif->csa_failed = false; 5624 mvmvif->csa_blocks_tx = false; 5625 5626 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5627 chsw->chandef.center_freq1); 5628 5629 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5630 ieee80211_vif_to_wdev(vif), 5631 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5632 5633 switch (vif->type) { 5634 case NL80211_IFTYPE_AP: 5635 csa_vif = 5636 rcu_dereference_protected(mvm->csa_vif, 5637 lockdep_is_held(&mvm->mutex)); 5638 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5639 "Another CSA is already in progress")) 5640 return -EBUSY; 5641 5642 /* we still didn't unblock tx. prevent new CS meanwhile */ 5643 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5644 lockdep_is_held(&mvm->mutex))) 5645 return -EBUSY; 5646 5647 rcu_assign_pointer(mvm->csa_vif, vif); 5648 5649 if (WARN_ONCE(mvmvif->csa_countdown, 5650 "Previous CSA countdown didn't complete")) 5651 return -EBUSY; 5652 5653 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5654 5655 if (!chsw->block_tx) 5656 break; 5657 /* don't need blocking in driver otherwise - mac80211 will do */ 5658 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5659 break; 5660 5661 mvmvif->csa_blocks_tx = true; 5662 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5663 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5664 ieee80211_iterate_stations_atomic(mvm->hw, 5665 iwl_mvm_csa_block_txqs, 5666 NULL); 5667 break; 5668 case NL80211_IFTYPE_STATION: 5669 mvmvif->csa_blocks_tx = chsw->block_tx; 5670 5671 /* 5672 * In the new flow FW is in charge of timing the switch so there 5673 * is no need for all of this 5674 */ 5675 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5676 CHANNEL_SWITCH_ERROR_NOTIF, 5677 0)) 5678 break; 5679 5680 /* 5681 * We haven't configured the firmware to be associated yet since 5682 * we don't know the dtim period. In this case, the firmware can't 5683 * track the beacons. 5684 */ 5685 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5686 return -EBUSY; 5687 5688 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5689 hweight16(vif->valid_links) <= 1) 5690 schedule_delayed_work(&mvmvif->csa_work, 0); 5691 5692 if (chsw->block_tx) { 5693 /* 5694 * In case of undetermined / long time with immediate 5695 * quiet monitor status to gracefully disconnect 5696 */ 5697 if (!chsw->count || 5698 chsw->count * vif->bss_conf.beacon_int > 5699 IWL_MAX_CSA_BLOCK_TX) 5700 schedule_delayed_work(&mvmvif->csa_work, 5701 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5702 } 5703 5704 if (!fw_has_capa(&mvm->fw->ucode_capa, 5705 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5706 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5707 if (ret) 5708 return ret; 5709 } else { 5710 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5711 } 5712 5713 mvmvif->csa_count = chsw->count; 5714 mvmvif->csa_misbehave = false; 5715 break; 5716 default: 5717 break; 5718 } 5719 5720 mvmvif->ps_disabled = true; 5721 5722 ret = iwl_mvm_power_update_ps(mvm); 5723 if (ret) 5724 return ret; 5725 5726 /* we won't be on this channel any longer */ 5727 iwl_mvm_teardown_tdls_peers(mvm); 5728 5729 return ret; 5730 } 5731 5732 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5733 struct ieee80211_vif *vif, 5734 struct ieee80211_channel_switch *chsw) 5735 { 5736 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5737 5738 guard(mvm)(mvm); 5739 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5740 } 5741 5742 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5743 struct ieee80211_vif *vif, 5744 struct ieee80211_channel_switch *chsw) 5745 { 5746 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5747 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5748 struct iwl_chan_switch_te_cmd cmd = { 5749 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5750 mvmvif->color)), 5751 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5752 .tsf = cpu_to_le32(chsw->timestamp), 5753 .cs_count = chsw->count, 5754 .cs_mode = chsw->block_tx, 5755 }; 5756 5757 /* 5758 * In the new flow FW is in charge of timing the switch so there is no 5759 * need for all of this 5760 */ 5761 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5762 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5763 return; 5764 5765 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5766 return; 5767 5768 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5769 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5770 5771 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5772 if (mvmvif->csa_misbehave) { 5773 struct ieee80211_bss_conf *link_conf; 5774 5775 /* Second time, give up on this AP*/ 5776 5777 link_conf = wiphy_dereference(hw->wiphy, 5778 vif->link_conf[chsw->link_id]); 5779 if (WARN_ON(!link_conf)) 5780 return; 5781 5782 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5783 ieee80211_chswitch_done(vif, false, 0); 5784 mvmvif->csa_misbehave = false; 5785 return; 5786 } 5787 mvmvif->csa_misbehave = true; 5788 } 5789 mvmvif->csa_count = chsw->count; 5790 5791 guard(mvm)(mvm); 5792 if (mvmvif->csa_failed) 5793 return; 5794 5795 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5796 WIDE_ID(MAC_CONF_GROUP, 5797 CHANNEL_SWITCH_TIME_EVENT_CMD), 5798 0, sizeof(cmd), &cmd)); 5799 } 5800 5801 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5802 { 5803 int i; 5804 5805 if (!iwl_mvm_has_new_tx_api(mvm)) { 5806 /* we can't ask the firmware anything if it is dead */ 5807 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5808 &mvm->status)) 5809 return; 5810 if (drop) { 5811 guard(mvm)(mvm); 5812 iwl_mvm_flush_tx_path(mvm, 5813 iwl_mvm_flushable_queues(mvm) & queues); 5814 } else { 5815 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5816 } 5817 return; 5818 } 5819 5820 guard(mvm)(mvm); 5821 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5822 struct ieee80211_sta *sta; 5823 5824 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5825 lockdep_is_held(&mvm->mutex)); 5826 if (IS_ERR_OR_NULL(sta)) 5827 continue; 5828 5829 if (drop) 5830 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5831 else 5832 iwl_mvm_wait_sta_queues_empty(mvm, 5833 iwl_mvm_sta_from_mac80211(sta)); 5834 } 5835 } 5836 5837 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5838 u32 queues, bool drop) 5839 { 5840 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5841 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5842 struct iwl_mvm_sta *mvmsta; 5843 struct ieee80211_sta *sta; 5844 bool ap_sta_done = false; 5845 int i; 5846 u32 msk = 0; 5847 5848 if (!vif) { 5849 iwl_mvm_flush_no_vif(mvm, queues, drop); 5850 return; 5851 } 5852 5853 if (!drop && hweight16(vif->active_links) <= 1) { 5854 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5855 struct ieee80211_bss_conf *link_conf; 5856 5857 link_conf = wiphy_dereference(hw->wiphy, 5858 vif->link_conf[link_id]); 5859 if (WARN_ON(!link_conf)) 5860 return; 5861 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5862 drop = true; 5863 } 5864 5865 /* Make sure we're done with the deferred traffic before flushing */ 5866 flush_work(&mvm->add_stream_wk); 5867 5868 mutex_lock(&mvm->mutex); 5869 5870 /* flush the AP-station and all TDLS peers */ 5871 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5872 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5873 lockdep_is_held(&mvm->mutex)); 5874 if (IS_ERR_OR_NULL(sta)) 5875 continue; 5876 5877 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5878 if (mvmsta->vif != vif) 5879 continue; 5880 5881 if (sta == mvmvif->ap_sta) { 5882 if (ap_sta_done) 5883 continue; 5884 ap_sta_done = true; 5885 } 5886 5887 if (drop) { 5888 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5889 mvmsta->tfd_queue_msk)) 5890 IWL_ERR(mvm, "flush request fail\n"); 5891 } else { 5892 if (iwl_mvm_has_new_tx_api(mvm)) 5893 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5894 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5895 msk |= mvmsta->tfd_queue_msk; 5896 } 5897 } 5898 5899 mutex_unlock(&mvm->mutex); 5900 5901 /* this can take a while, and we may need/want other operations 5902 * to succeed while doing this, so do it without the mutex held 5903 * If the firmware is dead, this can't work... 5904 */ 5905 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5906 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5907 &mvm->status)) 5908 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5909 } 5910 5911 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5912 struct ieee80211_sta *sta) 5913 { 5914 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5915 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5916 struct iwl_mvm_link_sta *mvm_link_sta; 5917 struct ieee80211_link_sta *link_sta; 5918 int link_id; 5919 5920 guard(mvm)(mvm); 5921 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5922 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5923 lockdep_is_held(&mvm->mutex)); 5924 if (!mvm_link_sta) 5925 continue; 5926 5927 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5928 mvmsta->tfd_queue_msk)) 5929 IWL_ERR(mvm, "flush request fail\n"); 5930 } 5931 } 5932 5933 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 5934 struct survey_info *survey) 5935 { 5936 int chan_idx; 5937 enum nl80211_band band; 5938 int ret; 5939 5940 mutex_lock(&mvm->mutex); 5941 5942 if (!mvm->acs_survey) { 5943 ret = -ENOENT; 5944 goto out; 5945 } 5946 5947 /* Find and return the next entry that has a non-zero active time */ 5948 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5949 struct ieee80211_supported_band *sband = 5950 mvm->hw->wiphy->bands[band]; 5951 5952 if (!sband) 5953 continue; 5954 5955 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 5956 struct iwl_mvm_acs_survey_channel *info = 5957 &mvm->acs_survey->bands[band][chan_idx]; 5958 5959 if (!info->time) 5960 continue; 5961 5962 /* Found (the next) channel to report */ 5963 survey->channel = &sband->channels[chan_idx]; 5964 survey->filled = SURVEY_INFO_TIME | 5965 SURVEY_INFO_TIME_BUSY | 5966 SURVEY_INFO_TIME_RX | 5967 SURVEY_INFO_TIME_TX; 5968 survey->time = info->time; 5969 survey->time_busy = info->time_busy; 5970 survey->time_rx = info->time_rx; 5971 survey->time_tx = info->time_tx; 5972 survey->noise = info->noise; 5973 if (survey->noise < 0) 5974 survey->filled |= SURVEY_INFO_NOISE_DBM; 5975 5976 /* Clear time so that channel is only reported once */ 5977 info->time = 0; 5978 5979 ret = 0; 5980 goto out; 5981 } 5982 } 5983 5984 ret = -ENOENT; 5985 5986 out: 5987 mutex_unlock(&mvm->mutex); 5988 5989 return ret; 5990 } 5991 5992 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5993 struct survey_info *survey) 5994 { 5995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5996 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5997 WIDE_ID(SYSTEM_GROUP, 5998 SYSTEM_STATISTICS_CMD), 5999 IWL_FW_CMD_VER_UNKNOWN); 6000 6001 memset(survey, 0, sizeof(*survey)); 6002 6003 if (!fw_has_capa(&mvm->fw->ucode_capa, 6004 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 6005 return -ENOENT; 6006 6007 /* 6008 * Return the beacon stats at index zero and pass on following indices 6009 * to the function returning the full survey, most likely for ACS 6010 * (Automatic Channel Selection). 6011 */ 6012 if (idx > 0) 6013 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 6014 6015 guard(mvm)(mvm); 6016 6017 if (iwl_mvm_firmware_running(mvm)) { 6018 int ret = iwl_mvm_request_statistics(mvm, false); 6019 6020 if (ret) 6021 return ret; 6022 } 6023 6024 survey->filled = SURVEY_INFO_TIME_RX | 6025 SURVEY_INFO_TIME_TX; 6026 6027 survey->time_rx = mvm->accu_radio_stats.rx_time + 6028 mvm->radio_stats.rx_time; 6029 do_div(survey->time_rx, USEC_PER_MSEC); 6030 6031 survey->time_tx = mvm->accu_radio_stats.tx_time + 6032 mvm->radio_stats.tx_time; 6033 do_div(survey->time_tx, USEC_PER_MSEC); 6034 6035 /* the new fw api doesn't support the following fields */ 6036 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 6037 return 0; 6038 6039 survey->filled |= SURVEY_INFO_TIME | 6040 SURVEY_INFO_TIME_SCAN; 6041 survey->time = mvm->accu_radio_stats.on_time_rf + 6042 mvm->radio_stats.on_time_rf; 6043 do_div(survey->time, USEC_PER_MSEC); 6044 6045 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 6046 mvm->radio_stats.on_time_scan; 6047 do_div(survey->time_scan, USEC_PER_MSEC); 6048 6049 return 0; 6050 } 6051 6052 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 6053 { 6054 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 6055 u32 gi_ltf; 6056 6057 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 6058 case RATE_MCS_CHAN_WIDTH_20: 6059 rinfo->bw = RATE_INFO_BW_20; 6060 break; 6061 case RATE_MCS_CHAN_WIDTH_40: 6062 rinfo->bw = RATE_INFO_BW_40; 6063 break; 6064 case RATE_MCS_CHAN_WIDTH_80: 6065 rinfo->bw = RATE_INFO_BW_80; 6066 break; 6067 case RATE_MCS_CHAN_WIDTH_160: 6068 rinfo->bw = RATE_INFO_BW_160; 6069 break; 6070 case RATE_MCS_CHAN_WIDTH_320: 6071 rinfo->bw = RATE_INFO_BW_320; 6072 break; 6073 } 6074 6075 if (format == RATE_MCS_MOD_TYPE_CCK || 6076 format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) { 6077 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 6078 6079 /* add the offset needed to get to the legacy ofdm indices */ 6080 if (format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) 6081 rate += IWL_FIRST_OFDM_RATE; 6082 6083 switch (rate) { 6084 case IWL_RATE_1M_INDEX: 6085 rinfo->legacy = 10; 6086 break; 6087 case IWL_RATE_2M_INDEX: 6088 rinfo->legacy = 20; 6089 break; 6090 case IWL_RATE_5M_INDEX: 6091 rinfo->legacy = 55; 6092 break; 6093 case IWL_RATE_11M_INDEX: 6094 rinfo->legacy = 110; 6095 break; 6096 case IWL_RATE_6M_INDEX: 6097 rinfo->legacy = 60; 6098 break; 6099 case IWL_RATE_9M_INDEX: 6100 rinfo->legacy = 90; 6101 break; 6102 case IWL_RATE_12M_INDEX: 6103 rinfo->legacy = 120; 6104 break; 6105 case IWL_RATE_18M_INDEX: 6106 rinfo->legacy = 180; 6107 break; 6108 case IWL_RATE_24M_INDEX: 6109 rinfo->legacy = 240; 6110 break; 6111 case IWL_RATE_36M_INDEX: 6112 rinfo->legacy = 360; 6113 break; 6114 case IWL_RATE_48M_INDEX: 6115 rinfo->legacy = 480; 6116 break; 6117 case IWL_RATE_54M_INDEX: 6118 rinfo->legacy = 540; 6119 } 6120 return; 6121 } 6122 6123 rinfo->nss = u32_get_bits(rate_n_flags, 6124 RATE_MCS_NSS_MSK) + 1; 6125 rinfo->mcs = format == RATE_MCS_MOD_TYPE_HT ? 6126 RATE_HT_MCS_INDEX(rate_n_flags) : 6127 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6128 6129 if (rate_n_flags & RATE_MCS_SGI_MSK) 6130 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6131 6132 switch (format) { 6133 case RATE_MCS_MOD_TYPE_EHT: 6134 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6135 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6136 break; 6137 case RATE_MCS_MOD_TYPE_HE: 6138 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6139 6140 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6141 6142 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6143 rinfo->bw = RATE_INFO_BW_HE_RU; 6144 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6145 } 6146 6147 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6148 case RATE_MCS_HE_TYPE_SU: 6149 case RATE_MCS_HE_TYPE_EXT_SU: 6150 if (gi_ltf == 0 || gi_ltf == 1) 6151 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6152 else if (gi_ltf == 2) 6153 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6154 else if (gi_ltf == 3) 6155 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6156 else 6157 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6158 break; 6159 case RATE_MCS_HE_TYPE_MU: 6160 if (gi_ltf == 0 || gi_ltf == 1) 6161 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6162 else if (gi_ltf == 2) 6163 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6164 else 6165 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6166 break; 6167 case RATE_MCS_HE_TYPE_TRIG: 6168 if (gi_ltf == 0 || gi_ltf == 1) 6169 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6170 else 6171 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6172 break; 6173 } 6174 6175 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6176 rinfo->he_dcm = 1; 6177 break; 6178 case RATE_MCS_MOD_TYPE_HT: 6179 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6180 break; 6181 case RATE_MCS_MOD_TYPE_VHT: 6182 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6183 break; 6184 } 6185 } 6186 6187 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6188 struct ieee80211_vif *vif, 6189 struct ieee80211_sta *sta, 6190 struct station_info *sinfo) 6191 { 6192 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6193 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6194 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6195 int i; 6196 6197 if (mvmsta->deflink.avg_energy) { 6198 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6199 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6200 } 6201 6202 if (iwl_mvm_has_tlc_offload(mvm)) { 6203 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6204 6205 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6206 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6207 } 6208 6209 /* if beacon filtering isn't on mac80211 does it anyway */ 6210 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6211 return; 6212 6213 if (!vif->cfg.assoc) 6214 return; 6215 6216 guard(mvm)(mvm); 6217 6218 if (sta != mvmvif->ap_sta) 6219 return; 6220 6221 if (iwl_mvm_request_statistics(mvm, false)) 6222 return; 6223 6224 sinfo->rx_beacon = 0; 6225 for_each_mvm_vif_valid_link(mvmvif, i) 6226 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6227 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6228 6229 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6230 if (mvmvif->deflink.beacon_stats.avg_signal) { 6231 /* firmware only reports a value after RXing a few beacons */ 6232 sinfo->rx_beacon_signal_avg = 6233 mvmvif->deflink.beacon_stats.avg_signal; 6234 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6235 } 6236 } 6237 6238 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6239 struct ieee80211_vif *vif, 6240 const struct ieee80211_mlme_event *mlme) 6241 { 6242 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6243 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6244 iwl_dbg_tlv_time_point(&mvm->fwrt, 6245 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6246 NULL); 6247 return; 6248 } 6249 6250 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6251 iwl_dbg_tlv_time_point(&mvm->fwrt, 6252 IWL_FW_INI_TIME_POINT_DEASSOC, 6253 NULL); 6254 return; 6255 } 6256 } 6257 6258 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6259 struct ieee80211_vif *vif, 6260 const struct ieee80211_event *event) 6261 { 6262 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6263 do { \ 6264 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6265 break; \ 6266 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6267 } while (0) 6268 6269 struct iwl_fw_dbg_trigger_tlv *trig; 6270 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6271 6272 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6273 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6274 return; 6275 } 6276 6277 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6278 FW_DBG_TRIGGER_MLME); 6279 if (!trig) 6280 return; 6281 6282 trig_mlme = (void *)trig->data; 6283 6284 if (event->u.mlme.data == ASSOC_EVENT) { 6285 if (event->u.mlme.status == MLME_DENIED) 6286 CHECK_MLME_TRIGGER(stop_assoc_denied, 6287 "DENIED ASSOC: reason %d", 6288 event->u.mlme.reason); 6289 else if (event->u.mlme.status == MLME_TIMEOUT) 6290 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6291 "ASSOC TIMEOUT"); 6292 } else if (event->u.mlme.data == AUTH_EVENT) { 6293 if (event->u.mlme.status == MLME_DENIED) 6294 CHECK_MLME_TRIGGER(stop_auth_denied, 6295 "DENIED AUTH: reason %d", 6296 event->u.mlme.reason); 6297 else if (event->u.mlme.status == MLME_TIMEOUT) 6298 CHECK_MLME_TRIGGER(stop_auth_timeout, 6299 "AUTH TIMEOUT"); 6300 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6301 CHECK_MLME_TRIGGER(stop_rx_deauth, 6302 "DEAUTH RX %d", event->u.mlme.reason); 6303 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6304 CHECK_MLME_TRIGGER(stop_tx_deauth, 6305 "DEAUTH TX %d", event->u.mlme.reason); 6306 } 6307 #undef CHECK_MLME_TRIGGER 6308 } 6309 6310 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6311 struct ieee80211_vif *vif, 6312 const struct ieee80211_event *event) 6313 { 6314 struct iwl_fw_dbg_trigger_tlv *trig; 6315 struct iwl_fw_dbg_trigger_ba *ba_trig; 6316 6317 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6318 FW_DBG_TRIGGER_BA); 6319 if (!trig) 6320 return; 6321 6322 ba_trig = (void *)trig->data; 6323 6324 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6325 return; 6326 6327 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6328 "BAR received from %pM, tid %d, ssn %d", 6329 event->u.ba.sta->addr, event->u.ba.tid, 6330 event->u.ba.ssn); 6331 } 6332 6333 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6334 struct ieee80211_vif *vif, 6335 const struct ieee80211_event *event) 6336 { 6337 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6338 6339 switch (event->type) { 6340 case MLME_EVENT: 6341 iwl_mvm_event_mlme_callback(mvm, vif, event); 6342 break; 6343 case BAR_RX_EVENT: 6344 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6345 break; 6346 case BA_FRAME_TIMEOUT: 6347 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6348 event->u.ba.tid); 6349 break; 6350 default: 6351 break; 6352 } 6353 } 6354 6355 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6356 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6357 enum iwl_mvm_rxq_notif_type type, 6358 bool sync, 6359 const void *data, u32 size) 6360 { 6361 DEFINE_RAW_FLEX(struct iwl_rxq_sync_cmd, cmd, payload, 6362 sizeof(struct iwl_mvm_internal_rxq_notif)); 6363 struct iwl_mvm_internal_rxq_notif *notif = 6364 (struct iwl_mvm_internal_rxq_notif *)cmd->payload; 6365 struct iwl_host_cmd hcmd = { 6366 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6367 .data[0] = cmd, 6368 .len[0] = __struct_size(cmd), 6369 .data[1] = data, 6370 .len[1] = size, 6371 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6372 }; 6373 int ret; 6374 6375 cmd->rxq_mask = cpu_to_le32(BIT(mvm->trans->info.num_rxqs) - 1); 6376 cmd->count = cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6377 size); 6378 notif->type = type; 6379 notif->sync = sync; 6380 6381 /* size must be a multiple of DWORD */ 6382 if (WARN_ON(cmd->count & cpu_to_le32(3))) 6383 return; 6384 6385 if (!iwl_mvm_has_new_rx_api(mvm)) 6386 return; 6387 6388 if (sync) { 6389 notif->cookie = mvm->queue_sync_cookie; 6390 mvm->queue_sync_state = (1 << mvm->trans->info.num_rxqs) - 1; 6391 } 6392 6393 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6394 if (ret) { 6395 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6396 goto out; 6397 } 6398 6399 if (sync) { 6400 lockdep_assert_held(&mvm->mutex); 6401 ret = wait_event_timeout(mvm->rx_sync_waitq, 6402 READ_ONCE(mvm->queue_sync_state) == 0, 6403 SYNC_RX_QUEUE_TIMEOUT); 6404 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6405 mvm->queue_sync_state, 6406 mvm->queue_sync_cookie); 6407 } 6408 6409 out: 6410 if (sync) { 6411 mvm->queue_sync_state = 0; 6412 mvm->queue_sync_cookie++; 6413 } 6414 } 6415 6416 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6417 { 6418 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6419 6420 guard(mvm)(mvm); 6421 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6422 } 6423 6424 int 6425 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6426 struct ieee80211_vif *vif, 6427 struct cfg80211_ftm_responder_stats *stats) 6428 { 6429 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6430 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6431 6432 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6433 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6434 return -EINVAL; 6435 6436 mutex_lock(&mvm->mutex); 6437 *stats = mvm->ftm_resp_stats; 6438 mutex_unlock(&mvm->mutex); 6439 6440 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6441 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6442 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6443 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6444 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6445 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6446 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6447 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6448 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6449 6450 return 0; 6451 } 6452 6453 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6454 struct cfg80211_pmsr_request *request) 6455 { 6456 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6457 6458 guard(mvm)(mvm); 6459 return iwl_mvm_ftm_start(mvm, vif, request); 6460 } 6461 6462 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6463 struct cfg80211_pmsr_request *request) 6464 { 6465 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6466 6467 guard(mvm)(mvm); 6468 iwl_mvm_ftm_abort(mvm, request); 6469 } 6470 6471 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6472 { 6473 u8 protocol = ip_hdr(skb)->protocol; 6474 6475 if (!IS_ENABLED(CONFIG_INET)) 6476 return false; 6477 6478 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6479 } 6480 6481 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6482 struct sk_buff *head, 6483 struct sk_buff *skb) 6484 { 6485 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6486 6487 /* For now don't aggregate IPv6 in AMSDU */ 6488 if (skb->protocol != htons(ETH_P_IP)) 6489 return false; 6490 6491 if (!iwl_mvm_is_csum_supported(mvm)) 6492 return true; 6493 6494 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6495 } 6496 6497 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6498 struct ieee80211_vif *vif, 6499 struct cfg80211_set_hw_timestamp *hwts) 6500 { 6501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6502 u32 protocols = 0; 6503 6504 /* HW timestamping is only supported for a specific station */ 6505 if (!hwts->macaddr) 6506 return -EOPNOTSUPP; 6507 6508 if (hwts->enable) 6509 protocols = 6510 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6511 6512 guard(mvm)(mvm); 6513 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6514 } 6515 6516 const struct ieee80211_ops iwl_mvm_hw_ops = { 6517 .tx = iwl_mvm_mac_tx, 6518 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6519 .ampdu_action = iwl_mvm_mac_ampdu_action, 6520 .get_antenna = iwl_mvm_op_get_antenna, 6521 .set_antenna = iwl_mvm_op_set_antenna, 6522 .start = iwl_mvm_mac_start, 6523 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6524 .stop = iwl_mvm_mac_stop, 6525 .add_interface = iwl_mvm_mac_add_interface, 6526 .remove_interface = iwl_mvm_mac_remove_interface, 6527 .config = iwl_mvm_mac_config, 6528 .prepare_multicast = iwl_mvm_prepare_multicast, 6529 .configure_filter = iwl_mvm_configure_filter, 6530 .config_iface_filter = iwl_mvm_config_iface_filter, 6531 .bss_info_changed = iwl_mvm_bss_info_changed, 6532 .hw_scan = iwl_mvm_mac_hw_scan, 6533 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6534 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6535 .sta_state = iwl_mvm_mac_sta_state, 6536 .sta_notify = iwl_mvm_mac_sta_notify, 6537 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6538 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6539 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6540 .link_sta_rc_update = iwl_mvm_sta_rc_update, 6541 .conf_tx = iwl_mvm_mac_conf_tx, 6542 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6543 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6544 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6545 .flush = iwl_mvm_mac_flush, 6546 .flush_sta = iwl_mvm_mac_flush_sta, 6547 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6548 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6549 .set_key = iwl_mvm_mac_set_key, 6550 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6551 .remain_on_channel = iwl_mvm_roc, 6552 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6553 .add_chanctx = iwl_mvm_add_chanctx, 6554 .remove_chanctx = iwl_mvm_remove_chanctx, 6555 .change_chanctx = iwl_mvm_change_chanctx, 6556 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6557 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6558 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6559 6560 .start_ap = iwl_mvm_start_ap, 6561 .stop_ap = iwl_mvm_stop_ap, 6562 .join_ibss = iwl_mvm_start_ibss, 6563 .leave_ibss = iwl_mvm_stop_ibss, 6564 6565 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6566 6567 .set_tim = iwl_mvm_set_tim, 6568 6569 .channel_switch = iwl_mvm_channel_switch, 6570 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6571 .post_channel_switch = iwl_mvm_post_channel_switch, 6572 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6573 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6574 6575 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6576 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6577 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6578 6579 .event_callback = iwl_mvm_mac_event_callback, 6580 6581 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6582 6583 #ifdef CONFIG_PM_SLEEP 6584 /* look at d3.c */ 6585 .suspend = iwl_mvm_suspend, 6586 .resume = iwl_mvm_resume, 6587 .set_wakeup = iwl_mvm_set_wakeup, 6588 .set_rekey_data = iwl_mvm_set_rekey_data, 6589 #if IS_ENABLED(CONFIG_IPV6) 6590 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6591 #endif 6592 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6593 #endif 6594 .get_survey = iwl_mvm_mac_get_survey, 6595 .sta_statistics = iwl_mvm_mac_sta_statistics, 6596 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6597 .start_pmsr = iwl_mvm_start_pmsr, 6598 .abort_pmsr = iwl_mvm_abort_pmsr, 6599 6600 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6601 #ifdef CONFIG_IWLWIFI_DEBUGFS 6602 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6603 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6604 #endif 6605 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6606 }; 6607