1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2023 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-eeprom-parse.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 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_STATION), 37 }, 38 { 39 .max = 1, 40 .types = BIT(NL80211_IFTYPE_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 50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 51 { 52 .num_different_channels = 2, 53 .max_interfaces = 3, 54 .limits = iwl_mvm_limits, 55 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 56 }, 57 }; 58 59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 60 .max_peers = IWL_MVM_TOF_MAX_APS, 61 .report_ap_tsf = 1, 62 .randomize_mac_addr = 1, 63 64 .ftm = { 65 .supported = 1, 66 .asap = 1, 67 .non_asap = 1, 68 .request_lci = 1, 69 .request_civicloc = 1, 70 .trigger_based = 1, 71 .non_trigger_based = 1, 72 .max_bursts_exponent = -1, /* all supported */ 73 .max_ftms_per_burst = 0, /* no limits */ 74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80) | 78 BIT(NL80211_CHAN_WIDTH_160), 79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 80 BIT(NL80211_PREAMBLE_HT) | 81 BIT(NL80211_PREAMBLE_VHT) | 82 BIT(NL80211_PREAMBLE_HE), 83 }, 84 }; 85 86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 87 enum set_key_cmd cmd, 88 struct ieee80211_vif *vif, 89 struct ieee80211_sta *sta, 90 struct ieee80211_key_conf *key); 91 92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 93 { 94 int i; 95 96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 97 for (i = 0; i < NUM_PHY_CTX; i++) { 98 mvm->phy_ctxts[i].id = i; 99 mvm->phy_ctxts[i].ref = 0; 100 } 101 } 102 103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 104 const char *alpha2, 105 enum iwl_mcc_source src_id, 106 bool *changed) 107 { 108 struct ieee80211_regdomain *regd = NULL; 109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 111 struct iwl_mcc_update_resp_v8 *resp; 112 u8 resp_ver; 113 114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 115 116 lockdep_assert_held(&mvm->mutex); 117 118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 119 if (IS_ERR_OR_NULL(resp)) { 120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 121 PTR_ERR_OR_ZERO(resp)); 122 resp = NULL; 123 goto out; 124 } 125 126 if (changed) { 127 u32 status = le32_to_cpu(resp->status); 128 129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 130 status == MCC_RESP_ILLEGAL); 131 } 132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 133 MCC_UPDATE_CMD, 0); 134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 135 136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 137 __le32_to_cpu(resp->n_channels), 138 resp->channels, 139 __le16_to_cpu(resp->mcc), 140 __le16_to_cpu(resp->geo_info), 141 le32_to_cpu(resp->cap), resp_ver); 142 /* Store the return source id */ 143 src_id = resp->source_id; 144 if (IS_ERR_OR_NULL(regd)) { 145 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 146 PTR_ERR_OR_ZERO(regd)); 147 goto out; 148 } 149 150 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 151 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 152 mvm->lar_regdom_set = true; 153 mvm->mcc_src = src_id; 154 155 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 156 157 out: 158 kfree(resp); 159 return regd; 160 } 161 162 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 163 { 164 bool changed; 165 struct ieee80211_regdomain *regd; 166 167 if (!iwl_mvm_is_lar_supported(mvm)) 168 return; 169 170 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 171 if (!IS_ERR_OR_NULL(regd)) { 172 /* only update the regulatory core if changed */ 173 if (changed) 174 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 175 176 kfree(regd); 177 } 178 } 179 180 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 181 bool *changed) 182 { 183 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 184 iwl_mvm_is_wifi_mcc_supported(mvm) ? 185 MCC_SOURCE_GET_CURRENT : 186 MCC_SOURCE_OLD_FW, changed); 187 } 188 189 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 190 { 191 enum iwl_mcc_source used_src; 192 struct ieee80211_regdomain *regd; 193 int ret; 194 bool changed; 195 const struct ieee80211_regdomain *r = 196 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 197 198 if (!r) 199 return -ENOENT; 200 201 /* save the last source in case we overwrite it below */ 202 used_src = mvm->mcc_src; 203 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 204 /* Notify the firmware we support wifi location updates */ 205 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 206 if (!IS_ERR_OR_NULL(regd)) 207 kfree(regd); 208 } 209 210 /* Now set our last stored MCC and source */ 211 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 212 &changed); 213 if (IS_ERR_OR_NULL(regd)) 214 return -EIO; 215 216 /* update cfg80211 if the regdomain was changed or the caller explicitly 217 * asked to update regdomain 218 */ 219 if (changed || force_regd_sync) 220 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 221 else 222 ret = 0; 223 224 kfree(regd); 225 return ret; 226 } 227 228 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 229 static const u8 he_if_types_ext_capa_sta[] = { 230 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 231 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 232 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 233 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 234 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 235 }; 236 237 static const u8 tm_if_types_ext_capa_sta[] = { 238 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 239 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 240 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 241 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 242 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 243 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 244 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 245 }; 246 247 /* Additional interface types for which extended capabilities are 248 * specified separately 249 */ 250 251 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 252 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 253 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 254 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 255 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 256 257 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 258 { 259 .iftype = NL80211_IFTYPE_STATION, 260 .extended_capabilities = he_if_types_ext_capa_sta, 261 .extended_capabilities_mask = he_if_types_ext_capa_sta, 262 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 263 /* relevant only if EHT is supported */ 264 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 265 }, 266 { 267 .iftype = NL80211_IFTYPE_STATION, 268 .extended_capabilities = tm_if_types_ext_capa_sta, 269 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 270 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 271 /* relevant only if EHT is supported */ 272 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 273 }, 274 }; 275 276 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 277 { 278 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 279 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 280 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 281 return 0; 282 } 283 284 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 285 { 286 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 287 288 /* This has been tested on those devices only */ 289 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 290 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) 291 return -ENOTSUPP; 292 293 if (!mvm->nvm_data) 294 return -EBUSY; 295 296 /* mac80211 ensures the device is not started, 297 * so the firmware cannot be running 298 */ 299 300 mvm->set_tx_ant = tx_ant; 301 mvm->set_rx_ant = rx_ant; 302 303 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 304 305 return 0; 306 } 307 308 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 309 { 310 struct ieee80211_hw *hw = mvm->hw; 311 int num_mac, ret, i; 312 static const u32 mvm_ciphers[] = { 313 WLAN_CIPHER_SUITE_WEP40, 314 WLAN_CIPHER_SUITE_WEP104, 315 WLAN_CIPHER_SUITE_TKIP, 316 WLAN_CIPHER_SUITE_CCMP, 317 }; 318 #ifdef CONFIG_PM_SLEEP 319 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 320 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 321 #endif 322 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 323 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 324 325 /* Tell mac80211 our characteristics */ 326 ieee80211_hw_set(hw, SIGNAL_DBM); 327 ieee80211_hw_set(hw, SPECTRUM_MGMT); 328 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 329 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 330 ieee80211_hw_set(hw, SUPPORTS_PS); 331 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 332 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 333 ieee80211_hw_set(hw, CONNECTION_MONITOR); 334 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 335 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 336 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 337 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 338 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 339 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 340 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 341 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 342 343 /* Set this early since we need to have it for the check below */ 344 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 345 !iwlwifi_mod_params.disable_11ax && 346 !iwlwifi_mod_params.disable_11be) 347 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 348 349 /* With MLD FW API, it tracks timing by itself, 350 * no need for any timing from the host 351 */ 352 if (!mvm->mld_api_is_used) 353 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 354 355 /* We should probably have this, but mac80211 356 * currently doesn't support it for MLO. 357 */ 358 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 359 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 360 361 /* 362 * On older devices, enabling TX A-MSDU occasionally leads to 363 * something getting messed up, the command read from the FIFO 364 * gets out of sync and isn't a TX command, so that we have an 365 * assert EDC. 366 * 367 * It's not clear where the bug is, but since we didn't used to 368 * support A-MSDU until moving the mac80211 iTXQs, just leave it 369 * for older devices. We also don't see this issue on any newer 370 * devices. 371 */ 372 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 373 ieee80211_hw_set(hw, TX_AMSDU); 374 ieee80211_hw_set(hw, TX_FRAG_LIST); 375 376 if (iwl_mvm_has_tlc_offload(mvm)) { 377 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 378 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 379 } 380 381 /* We want to use the mac80211's reorder buffer for 9000 */ 382 if (iwl_mvm_has_new_rx_api(mvm) && 383 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 384 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 385 386 if (fw_has_capa(&mvm->fw->ucode_capa, 387 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 388 ieee80211_hw_set(hw, AP_LINK_PS); 389 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 390 /* 391 * we absolutely need this for the new TX API since that comes 392 * with many more queues than the current code can deal with 393 * for station powersave 394 */ 395 return -EINVAL; 396 } 397 398 if (mvm->trans->num_rx_queues > 1) 399 ieee80211_hw_set(hw, USES_RSS); 400 401 if (mvm->trans->max_skb_frags) 402 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 403 404 hw->queues = IEEE80211_NUM_ACS; 405 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 406 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 407 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 408 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 409 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 410 411 hw->radiotap_timestamp.units_pos = 412 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 413 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 414 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 415 hw->radiotap_timestamp.accuracy = 22; 416 417 if (!iwl_mvm_has_tlc_offload(mvm)) 418 hw->rate_control_algorithm = RS_NAME; 419 420 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 421 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 422 hw->max_tx_fragments = mvm->trans->max_skb_frags; 423 424 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 425 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 426 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 427 hw->wiphy->cipher_suites = mvm->ciphers; 428 429 if (iwl_mvm_has_new_rx_api(mvm)) { 430 mvm->ciphers[hw->wiphy->n_cipher_suites] = 431 WLAN_CIPHER_SUITE_GCMP; 432 hw->wiphy->n_cipher_suites++; 433 mvm->ciphers[hw->wiphy->n_cipher_suites] = 434 WLAN_CIPHER_SUITE_GCMP_256; 435 hw->wiphy->n_cipher_suites++; 436 } 437 438 if (iwlwifi_mod_params.swcrypto) 439 IWL_ERR(mvm, 440 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 441 if (!iwlwifi_mod_params.bt_coex_active) 442 IWL_ERR(mvm, 443 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 444 445 ieee80211_hw_set(hw, MFP_CAPABLE); 446 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 447 hw->wiphy->n_cipher_suites++; 448 if (iwl_mvm_has_new_rx_api(mvm)) { 449 mvm->ciphers[hw->wiphy->n_cipher_suites] = 450 WLAN_CIPHER_SUITE_BIP_GMAC_128; 451 hw->wiphy->n_cipher_suites++; 452 mvm->ciphers[hw->wiphy->n_cipher_suites] = 453 WLAN_CIPHER_SUITE_BIP_GMAC_256; 454 hw->wiphy->n_cipher_suites++; 455 } 456 457 wiphy_ext_feature_set(hw->wiphy, 458 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 459 wiphy_ext_feature_set(hw->wiphy, 460 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 461 462 if (fw_has_capa(&mvm->fw->ucode_capa, 463 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 464 wiphy_ext_feature_set(hw->wiphy, 465 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 466 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 467 } 468 469 if (sec_key_ver && 470 fw_has_capa(&mvm->fw->ucode_capa, 471 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 472 wiphy_ext_feature_set(hw->wiphy, 473 NL80211_EXT_FEATURE_BEACON_PROTECTION); 474 else if (fw_has_capa(&mvm->fw->ucode_capa, 475 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 476 wiphy_ext_feature_set(hw->wiphy, 477 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 478 479 if (fw_has_capa(&mvm->fw->ucode_capa, 480 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 481 hw->wiphy->hw_timestamp_max_peers = 1; 482 483 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 484 hw->wiphy->features |= 485 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 486 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 487 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 488 489 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 490 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 491 hw->chanctx_data_size = sizeof(u16); 492 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 493 494 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 495 BIT(NL80211_IFTYPE_P2P_CLIENT) | 496 BIT(NL80211_IFTYPE_AP) | 497 BIT(NL80211_IFTYPE_P2P_GO) | 498 BIT(NL80211_IFTYPE_P2P_DEVICE) | 499 BIT(NL80211_IFTYPE_ADHOC); 500 501 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 502 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 503 504 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 505 * the hw, preventing us to control which key(id) to use per MPDU. 506 * Till that's fixed we can't use Extended Key ID for the newer cards. 507 */ 508 if (!iwl_mvm_has_new_tx_api(mvm)) 509 wiphy_ext_feature_set(hw->wiphy, 510 NL80211_EXT_FEATURE_EXT_KEY_ID); 511 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 512 513 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 514 if (iwl_mvm_is_lar_supported(mvm)) 515 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 516 else 517 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 518 REGULATORY_DISABLE_BEACON_HINTS; 519 520 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 521 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 522 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 523 524 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 525 hw->wiphy->n_iface_combinations = 526 ARRAY_SIZE(iwl_mvm_iface_combinations); 527 528 hw->wiphy->max_remain_on_channel_duration = 10000; 529 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 530 531 /* Extract MAC address */ 532 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 533 hw->wiphy->addresses = mvm->addresses; 534 hw->wiphy->n_addresses = 1; 535 536 /* Extract additional MAC addresses if available */ 537 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 538 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 539 540 for (i = 1; i < num_mac; i++) { 541 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 542 ETH_ALEN); 543 mvm->addresses[i].addr[5]++; 544 hw->wiphy->n_addresses++; 545 } 546 547 iwl_mvm_reset_phy_ctxts(mvm); 548 549 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 550 551 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 552 553 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 554 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 555 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 556 557 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 558 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 559 else 560 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 561 562 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 563 hw->wiphy->bands[NL80211_BAND_2GHZ] = 564 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 565 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 566 hw->wiphy->bands[NL80211_BAND_5GHZ] = 567 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 568 569 if (fw_has_capa(&mvm->fw->ucode_capa, 570 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 571 fw_has_api(&mvm->fw->ucode_capa, 572 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 573 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 574 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 575 } 576 if (fw_has_capa(&mvm->fw->ucode_capa, 577 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 578 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 579 hw->wiphy->bands[NL80211_BAND_6GHZ] = 580 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 581 582 hw->wiphy->hw_version = mvm->trans->hw_id; 583 584 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 585 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 586 else 587 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 588 589 hw->wiphy->max_sched_scan_reqs = 1; 590 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 591 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 592 /* we create the 802.11 header and zero length SSID IE. */ 593 hw->wiphy->max_sched_scan_ie_len = 594 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 595 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 596 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 597 598 /* 599 * the firmware uses u8 for num of iterations, but 0xff is saved for 600 * infinite loop, so the maximum number of iterations is actually 254. 601 */ 602 hw->wiphy->max_sched_scan_plan_iterations = 254; 603 604 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 605 NL80211_FEATURE_LOW_PRIORITY_SCAN | 606 NL80211_FEATURE_P2P_GO_OPPPS | 607 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 608 NL80211_FEATURE_DYNAMIC_SMPS | 609 NL80211_FEATURE_STATIC_SMPS | 610 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 611 612 if (fw_has_capa(&mvm->fw->ucode_capa, 613 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 614 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 615 if (fw_has_capa(&mvm->fw->ucode_capa, 616 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 617 hw->wiphy->features |= NL80211_FEATURE_QUIET; 618 619 if (fw_has_capa(&mvm->fw->ucode_capa, 620 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 621 hw->wiphy->features |= 622 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 623 624 if (fw_has_capa(&mvm->fw->ucode_capa, 625 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 626 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 627 628 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 629 IWL_FW_CMD_VER_UNKNOWN) == 3) 630 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 631 632 if (fw_has_api(&mvm->fw->ucode_capa, 633 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 634 wiphy_ext_feature_set(hw->wiphy, 635 NL80211_EXT_FEATURE_SCAN_START_TIME); 636 wiphy_ext_feature_set(hw->wiphy, 637 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 638 } 639 640 if (iwl_mvm_is_oce_supported(mvm)) { 641 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 642 643 wiphy_ext_feature_set(hw->wiphy, 644 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 645 wiphy_ext_feature_set(hw->wiphy, 646 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 647 wiphy_ext_feature_set(hw->wiphy, 648 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 649 650 /* Old firmware also supports probe deferral and suppression */ 651 if (scan_ver < 15) 652 wiphy_ext_feature_set(hw->wiphy, 653 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 654 } 655 656 hw->wiphy->iftype_ext_capab = NULL; 657 hw->wiphy->num_iftype_ext_capab = 0; 658 659 if (mvm->nvm_data->sku_cap_11ax_enable && 660 !iwlwifi_mod_params.disable_11ax) { 661 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 662 hw->wiphy->num_iftype_ext_capab = 663 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 664 665 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 666 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 667 } 668 669 if (iwl_fw_lookup_cmd_ver(mvm->fw, 670 WIDE_ID(DATA_PATH_GROUP, 671 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 672 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 673 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 674 675 if (!hw->wiphy->iftype_ext_capab) { 676 hw->wiphy->num_iftype_ext_capab = 1; 677 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 678 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 679 } else { 680 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 681 } 682 } 683 684 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 685 686 #ifdef CONFIG_PM_SLEEP 687 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 688 mvm->trans->ops->d3_suspend && 689 mvm->trans->ops->d3_resume && 690 device_can_wakeup(mvm->trans->dev)) { 691 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 692 WIPHY_WOWLAN_DISCONNECT | 693 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 694 WIPHY_WOWLAN_RFKILL_RELEASE | 695 WIPHY_WOWLAN_NET_DETECT; 696 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 697 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 698 WIPHY_WOWLAN_4WAY_HANDSHAKE; 699 700 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 701 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 702 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 703 mvm->wowlan.max_nd_match_sets = 704 iwl_umac_scan_get_max_profiles(mvm->fw); 705 hw->wiphy->wowlan = &mvm->wowlan; 706 } 707 #endif 708 709 ret = iwl_mvm_leds_init(mvm); 710 if (ret) 711 return ret; 712 713 if (fw_has_capa(&mvm->fw->ucode_capa, 714 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 715 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 716 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 717 ieee80211_hw_set(hw, TDLS_WIDER_BW); 718 } 719 720 if (fw_has_capa(&mvm->fw->ucode_capa, 721 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 722 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 723 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 724 } 725 726 hw->netdev_features |= mvm->cfg->features; 727 if (!iwl_mvm_is_csum_supported(mvm)) 728 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 729 730 if (mvm->cfg->vht_mu_mimo_supported) 731 wiphy_ext_feature_set(hw->wiphy, 732 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 733 734 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 735 wiphy_ext_feature_set(hw->wiphy, 736 NL80211_EXT_FEATURE_PROTECTED_TWT); 737 738 iwl_mvm_vendor_cmds_register(mvm); 739 740 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 741 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 742 743 ret = ieee80211_register_hw(mvm->hw); 744 if (ret) { 745 iwl_mvm_leds_exit(mvm); 746 } 747 748 return ret; 749 } 750 751 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 752 struct ieee80211_sta *sta) 753 { 754 if (likely(sta)) { 755 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 756 return; 757 } else { 758 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 759 return; 760 } 761 762 ieee80211_free_txskb(mvm->hw, skb); 763 } 764 765 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 766 struct ieee80211_tx_control *control, struct sk_buff *skb) 767 { 768 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 769 struct ieee80211_sta *sta = control->sta; 770 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 771 struct ieee80211_hdr *hdr = (void *)skb->data; 772 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 773 IEEE80211_TX_CTL_TX_OFFCHAN; 774 u32 link_id = u32_get_bits(info->control.flags, 775 IEEE80211_TX_CTRL_MLO_LINK); 776 struct ieee80211_sta *tmp_sta = sta; 777 778 if (iwl_mvm_is_radio_killed(mvm)) { 779 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 780 goto drop; 781 } 782 783 if (offchannel && 784 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 785 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 786 goto drop; 787 788 /* 789 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 790 * so we treat the others as broadcast 791 */ 792 if (ieee80211_is_mgmt(hdr->frame_control)) 793 sta = NULL; 794 795 /* If there is no sta, and it's not offchannel - send through AP */ 796 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 797 !offchannel) { 798 struct iwl_mvm_vif *mvmvif = 799 iwl_mvm_vif_from_mac80211(info->control.vif); 800 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 801 802 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 803 /* mac80211 holds rcu read lock */ 804 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 805 if (IS_ERR_OR_NULL(sta)) 806 goto drop; 807 } 808 } 809 810 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 811 !ieee80211_is_probe_resp(hdr->frame_control)) { 812 /* translate MLD addresses to LINK addresses */ 813 struct ieee80211_link_sta *link_sta = 814 rcu_dereference(tmp_sta->link[link_id]); 815 struct ieee80211_bss_conf *link_conf = 816 rcu_dereference(info->control.vif->link_conf[link_id]); 817 struct ieee80211_mgmt *mgmt; 818 819 if (WARN_ON(!link_sta || !link_conf)) 820 goto drop; 821 822 /* if sta is NULL, the frame is a management frame */ 823 mgmt = (void *)hdr; 824 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 825 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 826 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 827 } 828 829 iwl_mvm_tx_skb(mvm, skb, sta); 830 return; 831 drop: 832 ieee80211_free_txskb(hw, skb); 833 } 834 835 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 836 { 837 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 838 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 839 struct sk_buff *skb = NULL; 840 841 /* 842 * No need for threads to be pending here, they can leave the first 843 * taker all the work. 844 * 845 * mvmtxq->tx_request logic: 846 * 847 * If 0, no one is currently TXing, set to 1 to indicate current thread 848 * will now start TX and other threads should quit. 849 * 850 * If 1, another thread is currently TXing, set to 2 to indicate to 851 * that thread that there was another request. Since that request may 852 * have raced with the check whether the queue is empty, the TXing 853 * thread should check the queue's status one more time before leaving. 854 * This check is done in order to not leave any TX hanging in the queue 855 * until the next TX invocation (which may not even happen). 856 * 857 * If 2, another thread is currently TXing, and it will already double 858 * check the queue, so do nothing. 859 */ 860 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 861 return; 862 863 rcu_read_lock(); 864 do { 865 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 866 &mvmtxq->state) && 867 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 868 &mvmtxq->state) && 869 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 870 skb = ieee80211_tx_dequeue(hw, txq); 871 872 if (!skb) { 873 if (txq->sta) 874 IWL_DEBUG_TX(mvm, 875 "TXQ of sta %pM tid %d is now empty\n", 876 txq->sta->addr, 877 txq->tid); 878 break; 879 } 880 881 iwl_mvm_tx_skb(mvm, skb, txq->sta); 882 } 883 } while (atomic_dec_return(&mvmtxq->tx_request)); 884 rcu_read_unlock(); 885 } 886 887 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 888 struct ieee80211_txq *txq) 889 { 890 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 891 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 892 893 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 894 !txq->sta) { 895 iwl_mvm_mac_itxq_xmit(hw, txq); 896 return; 897 } 898 899 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 900 * to handle any packets we leave on the txq now 901 */ 902 903 spin_lock_bh(&mvm->add_stream_lock); 904 /* The list is being deleted only after the queue is fully allocated. */ 905 if (list_empty(&mvmtxq->list) && 906 /* recheck under lock */ 907 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 908 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 909 schedule_work(&mvm->add_stream_wk); 910 } 911 spin_unlock_bh(&mvm->add_stream_lock); 912 } 913 914 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 915 do { \ 916 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 917 break; \ 918 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 919 } while (0) 920 921 static void 922 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 923 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 924 enum ieee80211_ampdu_mlme_action action) 925 { 926 struct iwl_fw_dbg_trigger_tlv *trig; 927 struct iwl_fw_dbg_trigger_ba *ba_trig; 928 929 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 930 FW_DBG_TRIGGER_BA); 931 if (!trig) 932 return; 933 934 ba_trig = (void *)trig->data; 935 936 switch (action) { 937 case IEEE80211_AMPDU_TX_OPERATIONAL: { 938 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 939 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 940 941 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 942 "TX AGG START: MAC %pM tid %d ssn %d\n", 943 sta->addr, tid, tid_data->ssn); 944 break; 945 } 946 case IEEE80211_AMPDU_TX_STOP_CONT: 947 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 948 "TX AGG STOP: MAC %pM tid %d\n", 949 sta->addr, tid); 950 break; 951 case IEEE80211_AMPDU_RX_START: 952 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 953 "RX AGG START: MAC %pM tid %d ssn %d\n", 954 sta->addr, tid, rx_ba_ssn); 955 break; 956 case IEEE80211_AMPDU_RX_STOP: 957 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 958 "RX AGG STOP: MAC %pM tid %d\n", 959 sta->addr, tid); 960 break; 961 default: 962 break; 963 } 964 } 965 966 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 967 struct ieee80211_vif *vif, 968 struct ieee80211_ampdu_params *params) 969 { 970 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 971 int ret; 972 struct ieee80211_sta *sta = params->sta; 973 enum ieee80211_ampdu_mlme_action action = params->action; 974 u16 tid = params->tid; 975 u16 *ssn = ¶ms->ssn; 976 u16 buf_size = params->buf_size; 977 bool amsdu = params->amsdu; 978 u16 timeout = params->timeout; 979 980 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 981 sta->addr, tid, action); 982 983 if (!(mvm->nvm_data->sku_cap_11n_enable)) 984 return -EACCES; 985 986 mutex_lock(&mvm->mutex); 987 988 switch (action) { 989 case IEEE80211_AMPDU_RX_START: 990 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 991 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 992 struct iwl_mvm_vif *mvmvif; 993 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 994 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 995 996 mdata->opened_rx_ba_sessions = true; 997 mvmvif = iwl_mvm_vif_from_mac80211(vif); 998 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 999 } 1000 if (!iwl_enable_rx_ampdu()) { 1001 ret = -EINVAL; 1002 break; 1003 } 1004 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1005 timeout); 1006 break; 1007 case IEEE80211_AMPDU_RX_STOP: 1008 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1009 timeout); 1010 break; 1011 case IEEE80211_AMPDU_TX_START: 1012 if (!iwl_enable_tx_ampdu()) { 1013 ret = -EINVAL; 1014 break; 1015 } 1016 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1017 break; 1018 case IEEE80211_AMPDU_TX_STOP_CONT: 1019 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1020 break; 1021 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1022 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1023 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1024 break; 1025 case IEEE80211_AMPDU_TX_OPERATIONAL: 1026 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1027 buf_size, amsdu); 1028 break; 1029 default: 1030 WARN_ON_ONCE(1); 1031 ret = -EINVAL; 1032 break; 1033 } 1034 1035 if (!ret) { 1036 u16 rx_ba_ssn = 0; 1037 1038 if (action == IEEE80211_AMPDU_RX_START) 1039 rx_ba_ssn = *ssn; 1040 1041 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1042 rx_ba_ssn, action); 1043 } 1044 mutex_unlock(&mvm->mutex); 1045 1046 return ret; 1047 } 1048 1049 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1050 struct ieee80211_vif *vif) 1051 { 1052 struct iwl_mvm *mvm = data; 1053 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1054 struct iwl_probe_resp_data *probe_data; 1055 unsigned int link_id; 1056 1057 mvmvif->uploaded = false; 1058 1059 spin_lock_bh(&mvm->time_event_lock); 1060 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1061 spin_unlock_bh(&mvm->time_event_lock); 1062 1063 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1064 mvmvif->ap_sta = NULL; 1065 1066 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1067 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1068 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1069 mvmvif->link[link_id]->phy_ctxt = NULL; 1070 mvmvif->link[link_id]->active = 0; 1071 mvmvif->link[link_id]->igtk = NULL; 1072 } 1073 1074 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1075 lockdep_is_held(&mvm->mutex)); 1076 if (probe_data) 1077 kfree_rcu(probe_data, rcu_head); 1078 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1079 } 1080 1081 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1082 { 1083 iwl_mvm_stop_device(mvm); 1084 1085 mvm->cur_aid = 0; 1086 1087 mvm->scan_status = 0; 1088 mvm->ps_disabled = false; 1089 mvm->rfkill_safe_init_done = false; 1090 1091 /* just in case one was running */ 1092 iwl_mvm_cleanup_roc_te(mvm); 1093 ieee80211_remain_on_channel_expired(mvm->hw); 1094 1095 iwl_mvm_ftm_restart(mvm); 1096 1097 /* 1098 * cleanup all interfaces, even inactive ones, as some might have 1099 * gone down during the HW restart 1100 */ 1101 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1102 1103 mvm->p2p_device_vif = NULL; 1104 1105 iwl_mvm_reset_phy_ctxts(mvm); 1106 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1107 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1108 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1109 1110 ieee80211_wake_queues(mvm->hw); 1111 1112 mvm->rx_ba_sessions = 0; 1113 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1114 mvm->monitor_on = false; 1115 #ifdef CONFIG_IWLWIFI_DEBUGFS 1116 mvm->beacon_inject_active = false; 1117 #endif 1118 1119 /* keep statistics ticking */ 1120 iwl_mvm_accu_radio_stats(mvm); 1121 } 1122 1123 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1124 { 1125 int ret; 1126 1127 lockdep_assert_held(&mvm->mutex); 1128 1129 ret = iwl_mvm_mei_get_ownership(mvm); 1130 if (ret) 1131 return ret; 1132 1133 if (mvm->mei_nvm_data) { 1134 /* We got the NIC, we can now free the MEI NVM data */ 1135 kfree(mvm->mei_nvm_data); 1136 mvm->mei_nvm_data = NULL; 1137 1138 /* 1139 * We can't free the nvm_data we allocated based on the SAP 1140 * data because we registered to cfg80211 with the channels 1141 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1142 * just in order to be able free it later. 1143 * NULLify nvm_data so that we will read the NVM from the 1144 * firmware this time. 1145 */ 1146 mvm->temp_nvm_data = mvm->nvm_data; 1147 mvm->nvm_data = NULL; 1148 } 1149 1150 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1151 /* 1152 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1153 * so later code will - from now on - see that we're doing it. 1154 */ 1155 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1156 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1157 /* Clean up some internal and mac80211 state on restart */ 1158 iwl_mvm_restart_cleanup(mvm); 1159 } 1160 ret = iwl_mvm_up(mvm); 1161 1162 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1163 NULL); 1164 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1165 NULL); 1166 1167 mvm->last_reset_or_resume_time_jiffies = jiffies; 1168 1169 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1170 /* Something went wrong - we need to finish some cleanup 1171 * that normally iwl_mvm_mac_restart_complete() below 1172 * would do. 1173 */ 1174 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1175 } 1176 1177 return ret; 1178 } 1179 1180 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1181 { 1182 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1183 int ret; 1184 int retry, max_retry = 0; 1185 1186 mutex_lock(&mvm->mutex); 1187 1188 /* we are starting the mac not in error flow, and restart is enabled */ 1189 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1190 iwlwifi_mod_params.fw_restart) { 1191 max_retry = IWL_MAX_INIT_RETRY; 1192 /* 1193 * This will prevent mac80211 recovery flows to trigger during 1194 * init failures 1195 */ 1196 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1197 } 1198 1199 for (retry = 0; retry <= max_retry; retry++) { 1200 ret = __iwl_mvm_mac_start(mvm); 1201 if (!ret || mvm->pldr_sync) 1202 break; 1203 1204 IWL_ERR(mvm, "mac start retry %d\n", retry); 1205 } 1206 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1207 1208 mutex_unlock(&mvm->mutex); 1209 1210 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1211 1212 return ret; 1213 } 1214 1215 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1216 { 1217 int ret; 1218 1219 mutex_lock(&mvm->mutex); 1220 1221 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1222 1223 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1224 if (ret) 1225 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1226 ret); 1227 1228 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1229 1230 /* 1231 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1232 * of packets the FW sent out, so we must reconnect. 1233 */ 1234 iwl_mvm_teardown_tdls_peers(mvm); 1235 1236 mutex_unlock(&mvm->mutex); 1237 } 1238 1239 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1240 enum ieee80211_reconfig_type reconfig_type) 1241 { 1242 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1243 1244 switch (reconfig_type) { 1245 case IEEE80211_RECONFIG_TYPE_RESTART: 1246 iwl_mvm_restart_complete(mvm); 1247 break; 1248 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1249 break; 1250 } 1251 } 1252 1253 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1254 { 1255 lockdep_assert_held(&mvm->mutex); 1256 1257 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1258 1259 /* firmware counters are obviously reset now, but we shouldn't 1260 * partially track so also clear the fw_reset_accu counters. 1261 */ 1262 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1263 1264 /* async_handlers_wk is now blocked */ 1265 1266 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1267 iwl_mvm_rm_aux_sta(mvm); 1268 1269 iwl_mvm_stop_device(mvm); 1270 1271 iwl_mvm_async_handlers_purge(mvm); 1272 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1273 1274 /* 1275 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1276 * hw (as restart_complete() won't be called in this case) and mac80211 1277 * won't execute the restart. 1278 * But make sure to cleanup interfaces that have gone down before/during 1279 * HW restart was requested. 1280 */ 1281 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1282 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1283 &mvm->status)) 1284 ieee80211_iterate_interfaces(mvm->hw, 0, 1285 iwl_mvm_cleanup_iterator, mvm); 1286 1287 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1288 * make sure there's nothing left there and warn if any is found. 1289 */ 1290 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1291 int i; 1292 1293 for (i = 0; i < mvm->max_scans; i++) { 1294 if (WARN_ONCE(mvm->scan_uid_status[i], 1295 "UMAC scan UID %d status was not cleaned\n", 1296 i)) 1297 mvm->scan_uid_status[i] = 0; 1298 } 1299 } 1300 } 1301 1302 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1303 { 1304 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1305 1306 flush_work(&mvm->async_handlers_wk); 1307 flush_work(&mvm->add_stream_wk); 1308 1309 /* 1310 * Lock and clear the firmware running bit here already, so that 1311 * new commands coming in elsewhere, e.g. from debugfs, will not 1312 * be able to proceed. This is important here because one of those 1313 * debugfs files causes the firmware dump to be triggered, and if we 1314 * don't stop debugfs accesses before canceling that it could be 1315 * retriggered after we flush it but before we've cleared the bit. 1316 */ 1317 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1318 1319 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1320 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1321 1322 /* 1323 * The work item could be running or queued if the 1324 * ROC time event stops just as we get here. 1325 */ 1326 flush_work(&mvm->roc_done_wk); 1327 1328 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1329 1330 mutex_lock(&mvm->mutex); 1331 __iwl_mvm_mac_stop(mvm); 1332 mutex_unlock(&mvm->mutex); 1333 1334 /* 1335 * The worker might have been waiting for the mutex, let it run and 1336 * discover that its list is now empty. 1337 */ 1338 cancel_work_sync(&mvm->async_handlers_wk); 1339 } 1340 1341 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1342 { 1343 u16 i; 1344 1345 lockdep_assert_held(&mvm->mutex); 1346 1347 for (i = 0; i < NUM_PHY_CTX; i++) 1348 if (!mvm->phy_ctxts[i].ref) 1349 return &mvm->phy_ctxts[i]; 1350 1351 IWL_ERR(mvm, "No available PHY context\n"); 1352 return NULL; 1353 } 1354 1355 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1356 s16 tx_power) 1357 { 1358 u32 cmd_id = REDUCE_TX_POWER_CMD; 1359 int len; 1360 struct iwl_dev_tx_power_cmd cmd = { 1361 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1362 .common.mac_context_id = 1363 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1364 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1365 }; 1366 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1367 IWL_FW_CMD_VER_UNKNOWN); 1368 1369 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1370 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1371 1372 if (cmd_ver == 7) 1373 len = sizeof(cmd.v7); 1374 else if (cmd_ver == 6) 1375 len = sizeof(cmd.v6); 1376 else if (fw_has_api(&mvm->fw->ucode_capa, 1377 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1378 len = sizeof(cmd.v5); 1379 else if (fw_has_capa(&mvm->fw->ucode_capa, 1380 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1381 len = sizeof(cmd.v4); 1382 else 1383 len = sizeof(cmd.v3); 1384 1385 /* all structs have the same common part, add it */ 1386 len += sizeof(cmd.common); 1387 1388 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1389 } 1390 1391 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1392 struct ieee80211_vif *vif, 1393 struct ieee80211_bss_conf *link_conf) 1394 { 1395 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1396 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1397 int ret; 1398 1399 mutex_lock(&mvm->mutex); 1400 1401 if (vif->type == NL80211_IFTYPE_STATION) { 1402 struct iwl_mvm_sta *mvmsta; 1403 unsigned int link_id = link_conf->link_id; 1404 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1405 1406 mvmvif->csa_bcn_pending = false; 1407 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1408 1409 if (WARN_ON(!mvmsta)) { 1410 ret = -EIO; 1411 goto out_unlock; 1412 } 1413 1414 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1415 if (mvm->mld_api_is_used) 1416 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1417 else 1418 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1419 1420 if (!fw_has_capa(&mvm->fw->ucode_capa, 1421 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1422 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1423 if (ret) 1424 goto out_unlock; 1425 1426 iwl_mvm_stop_session_protection(mvm, vif); 1427 } 1428 } 1429 1430 mvmvif->ps_disabled = false; 1431 1432 ret = iwl_mvm_power_update_ps(mvm); 1433 1434 out_unlock: 1435 if (mvmvif->csa_failed) 1436 ret = -EIO; 1437 mutex_unlock(&mvm->mutex); 1438 1439 return ret; 1440 } 1441 1442 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1443 struct ieee80211_vif *vif) 1444 { 1445 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1446 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1447 struct iwl_chan_switch_te_cmd cmd = { 1448 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1449 mvmvif->color)), 1450 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1451 }; 1452 1453 /* 1454 * In the new flow since FW is in charge of the timing, 1455 * if driver has canceled the channel switch he will receive the 1456 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1457 */ 1458 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1459 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1460 return; 1461 1462 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1463 1464 mutex_lock(&mvm->mutex); 1465 if (!fw_has_capa(&mvm->fw->ucode_capa, 1466 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1467 iwl_mvm_remove_csa_period(mvm, vif); 1468 else 1469 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1470 WIDE_ID(MAC_CONF_GROUP, 1471 CHANNEL_SWITCH_TIME_EVENT_CMD), 1472 0, sizeof(cmd), &cmd)); 1473 mvmvif->csa_failed = true; 1474 mutex_unlock(&mvm->mutex); 1475 1476 /* If we're here, we can't support MLD */ 1477 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1478 } 1479 1480 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1481 { 1482 struct iwl_mvm_vif *mvmvif; 1483 struct ieee80211_vif *vif; 1484 1485 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1486 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1487 1488 /* Trigger disconnect (should clear the CSA state) */ 1489 ieee80211_chswitch_done(vif, false, 0); 1490 } 1491 1492 static u8 1493 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1494 { 1495 int data_start; 1496 int control_start; 1497 int bw; 1498 1499 if (chandef->width == NL80211_CHAN_WIDTH_320) 1500 bw = 320; 1501 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1502 bw = 160; 1503 else 1504 return 0; 1505 1506 /* data is bw wide so the start is half the width */ 1507 data_start = chandef->center_freq1 - bw / 2; 1508 /* control is 20Mhz width */ 1509 control_start = chandef->chan->center_freq - 10; 1510 1511 return (control_start - data_start) / 80; 1512 } 1513 1514 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1515 struct ieee80211_vif *vif) 1516 { 1517 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1518 int ret; 1519 1520 lockdep_assert_held(&mvm->mutex); 1521 1522 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1523 if (ret) { 1524 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1525 return ret; 1526 } 1527 1528 /* Only queue for this station is the mcast queue, 1529 * which shouldn't be in TFD mask anyway 1530 */ 1531 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1532 vif->type, 1533 IWL_STA_MULTICAST); 1534 } 1535 1536 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1537 struct ieee80211_vif *vif) 1538 { 1539 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1540 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1541 int ret; 1542 int i; 1543 1544 mutex_lock(&mvm->mutex); 1545 1546 mvmvif->mvm = mvm; 1547 1548 /* the first link always points to the default one */ 1549 mvmvif->link[0] = &mvmvif->deflink; 1550 1551 /* 1552 * Not much to do here. The stack will not allow interface 1553 * types or combinations that we didn't advertise, so we 1554 * don't really have to check the types. 1555 */ 1556 1557 /* make sure that beacon statistics don't go backwards with FW reset */ 1558 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1559 for_each_mvm_vif_valid_link(mvmvif, i) 1560 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1561 mvmvif->link[i]->beacon_stats.num_beacons; 1562 1563 /* Allocate resources for the MAC context, and add it to the fw */ 1564 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1565 if (ret) 1566 goto out; 1567 1568 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1569 1570 /* Currently not much to do for NAN */ 1571 if (vif->type == NL80211_IFTYPE_NAN) { 1572 ret = 0; 1573 goto out; 1574 } 1575 1576 /* 1577 * The AP binding flow can be done only after the beacon 1578 * template is configured (which happens only in the mac80211 1579 * start_ap() flow), and adding the broadcast station can happen 1580 * only after the binding. 1581 * In addition, since modifying the MAC before adding a bcast 1582 * station is not allowed by the FW, delay the adding of MAC context to 1583 * the point where we can also add the bcast station. 1584 * In short: there's not much we can do at this point, other than 1585 * allocating resources :) 1586 */ 1587 if (vif->type == NL80211_IFTYPE_AP || 1588 vif->type == NL80211_IFTYPE_ADHOC) { 1589 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1590 ret = 0; 1591 goto out; 1592 } 1593 1594 mvmvif->features |= hw->netdev_features; 1595 1596 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1597 if (ret) 1598 goto out_unlock; 1599 1600 ret = iwl_mvm_power_update_mac(mvm); 1601 if (ret) 1602 goto out_remove_mac; 1603 1604 /* beacon filtering */ 1605 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1606 if (ret) 1607 goto out_remove_mac; 1608 1609 if (!mvm->bf_allowed_vif && 1610 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1611 mvm->bf_allowed_vif = mvmvif; 1612 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1613 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1614 } 1615 1616 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1617 mvm->p2p_device_vif = vif; 1618 1619 iwl_mvm_tcm_add_vif(mvm, vif); 1620 INIT_DELAYED_WORK(&mvmvif->csa_work, 1621 iwl_mvm_channel_switch_disconnect_wk); 1622 1623 if (vif->type == NL80211_IFTYPE_MONITOR) { 1624 mvm->monitor_on = true; 1625 mvm->monitor_p80 = 1626 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1627 } 1628 1629 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1630 1631 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1632 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1633 !mvm->csme_vif && mvm->mei_registered) { 1634 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1635 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1636 mvm->csme_vif = vif; 1637 } 1638 1639 out: 1640 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1641 vif->type == NL80211_IFTYPE_ADHOC)) 1642 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1643 1644 goto out_unlock; 1645 1646 out_remove_mac: 1647 mvmvif->deflink.phy_ctxt = NULL; 1648 iwl_mvm_mac_ctxt_remove(mvm, vif); 1649 out_unlock: 1650 mutex_unlock(&mvm->mutex); 1651 1652 return ret; 1653 } 1654 1655 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1656 struct ieee80211_vif *vif) 1657 { 1658 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1659 /* 1660 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1661 * We assume here that all the packets sent to the OFFCHANNEL 1662 * queue are sent in ROC session. 1663 */ 1664 flush_work(&mvm->roc_done_wk); 1665 } 1666 } 1667 1668 /* This function is doing the common part of removing the interface for 1669 * both - MLD and non-MLD modes. Returns true if removing the interface 1670 * is done 1671 */ 1672 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1673 struct ieee80211_vif *vif) 1674 { 1675 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1676 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1677 struct iwl_probe_resp_data *probe_data; 1678 1679 iwl_mvm_prepare_mac_removal(mvm, vif); 1680 1681 if (!(vif->type == NL80211_IFTYPE_AP || 1682 vif->type == NL80211_IFTYPE_ADHOC)) 1683 iwl_mvm_tcm_rm_vif(mvm, vif); 1684 1685 mutex_lock(&mvm->mutex); 1686 1687 if (vif == mvm->csme_vif) { 1688 iwl_mei_set_netdev(NULL); 1689 mvm->csme_vif = NULL; 1690 } 1691 1692 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1693 lockdep_is_held(&mvm->mutex)); 1694 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1695 if (probe_data) 1696 kfree_rcu(probe_data, rcu_head); 1697 1698 if (mvm->bf_allowed_vif == mvmvif) { 1699 mvm->bf_allowed_vif = NULL; 1700 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1701 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1702 } 1703 1704 if (vif->bss_conf.ftm_responder) 1705 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1706 1707 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1708 1709 /* 1710 * For AP/GO interface, the tear down of the resources allocated to the 1711 * interface is be handled as part of the stop_ap flow. 1712 */ 1713 if (vif->type == NL80211_IFTYPE_AP || 1714 vif->type == NL80211_IFTYPE_ADHOC) { 1715 #ifdef CONFIG_NL80211_TESTMODE 1716 if (vif == mvm->noa_vif) { 1717 mvm->noa_vif = NULL; 1718 mvm->noa_duration = 0; 1719 } 1720 #endif 1721 return true; 1722 } 1723 1724 iwl_mvm_power_update_mac(mvm); 1725 return false; 1726 } 1727 1728 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1729 struct ieee80211_vif *vif) 1730 { 1731 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1732 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1733 1734 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1735 goto out; 1736 1737 /* Before the interface removal, mac80211 would cancel the ROC, and the 1738 * ROC worker would be scheduled if needed. The worker would be flushed 1739 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1740 * binding etc. so nothing needs to be done here. 1741 */ 1742 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1743 if (mvmvif->deflink.phy_ctxt) { 1744 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1745 mvmvif->deflink.phy_ctxt = NULL; 1746 } 1747 mvm->p2p_device_vif = NULL; 1748 } 1749 1750 iwl_mvm_mac_ctxt_remove(mvm, vif); 1751 1752 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1753 1754 if (vif->type == NL80211_IFTYPE_MONITOR) 1755 mvm->monitor_on = false; 1756 1757 out: 1758 if (vif->type == NL80211_IFTYPE_AP || 1759 vif->type == NL80211_IFTYPE_ADHOC) { 1760 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1761 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1762 } 1763 1764 mutex_unlock(&mvm->mutex); 1765 } 1766 1767 struct iwl_mvm_mc_iter_data { 1768 struct iwl_mvm *mvm; 1769 int port_id; 1770 }; 1771 1772 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1773 struct ieee80211_vif *vif) 1774 { 1775 struct iwl_mvm_mc_iter_data *data = _data; 1776 struct iwl_mvm *mvm = data->mvm; 1777 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1778 struct iwl_host_cmd hcmd = { 1779 .id = MCAST_FILTER_CMD, 1780 .flags = CMD_ASYNC, 1781 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1782 }; 1783 int ret, len; 1784 1785 /* if we don't have free ports, mcast frames will be dropped */ 1786 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1787 return; 1788 1789 if (vif->type != NL80211_IFTYPE_STATION || 1790 !vif->cfg.assoc) 1791 return; 1792 1793 cmd->port_id = data->port_id++; 1794 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1795 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1796 1797 hcmd.len[0] = len; 1798 hcmd.data[0] = cmd; 1799 1800 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1801 if (ret) 1802 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1803 } 1804 1805 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1806 { 1807 struct iwl_mvm_mc_iter_data iter_data = { 1808 .mvm = mvm, 1809 }; 1810 int ret; 1811 1812 lockdep_assert_held(&mvm->mutex); 1813 1814 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1815 return; 1816 1817 ieee80211_iterate_active_interfaces_atomic( 1818 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1819 iwl_mvm_mc_iface_iterator, &iter_data); 1820 1821 /* 1822 * Send a (synchronous) ech command so that we wait for the 1823 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1824 * the interface iterator. Otherwise, we might get here over 1825 * and over again (by userspace just sending a lot of these) 1826 * and the CPU can send them faster than the firmware can 1827 * process them. 1828 * Note that the CPU is still faster - but with this we'll 1829 * actually send fewer commands overall because the CPU will 1830 * not schedule the work in mac80211 as frequently if it's 1831 * still running when rescheduled (possibly multiple times). 1832 */ 1833 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1834 if (ret) 1835 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1836 } 1837 1838 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1839 struct netdev_hw_addr_list *mc_list) 1840 { 1841 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1842 struct iwl_mcast_filter_cmd *cmd; 1843 struct netdev_hw_addr *addr; 1844 int addr_count; 1845 bool pass_all; 1846 int len; 1847 1848 addr_count = netdev_hw_addr_list_count(mc_list); 1849 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1850 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1851 if (pass_all) 1852 addr_count = 0; 1853 1854 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1855 cmd = kzalloc(len, GFP_ATOMIC); 1856 if (!cmd) 1857 return 0; 1858 1859 if (pass_all) { 1860 cmd->pass_all = 1; 1861 return (u64)(unsigned long)cmd; 1862 } 1863 1864 netdev_hw_addr_list_for_each(addr, mc_list) { 1865 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1866 cmd->count, addr->addr); 1867 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1868 addr->addr, ETH_ALEN); 1869 cmd->count++; 1870 } 1871 1872 return (u64)(unsigned long)cmd; 1873 } 1874 1875 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1876 unsigned int changed_flags, 1877 unsigned int *total_flags, u64 multicast) 1878 { 1879 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1880 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1881 1882 mutex_lock(&mvm->mutex); 1883 1884 /* replace previous configuration */ 1885 kfree(mvm->mcast_filter_cmd); 1886 mvm->mcast_filter_cmd = cmd; 1887 1888 if (!cmd) 1889 goto out; 1890 1891 if (changed_flags & FIF_ALLMULTI) 1892 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1893 1894 if (cmd->pass_all) 1895 cmd->count = 0; 1896 1897 iwl_mvm_recalc_multicast(mvm); 1898 out: 1899 mutex_unlock(&mvm->mutex); 1900 *total_flags = 0; 1901 } 1902 1903 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1904 struct ieee80211_vif *vif, 1905 unsigned int filter_flags, 1906 unsigned int changed_flags) 1907 { 1908 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1909 1910 /* We support only filter for probe requests */ 1911 if (!(changed_flags & FIF_PROBE_REQ)) 1912 return; 1913 1914 /* Supported only for p2p client interfaces */ 1915 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1916 !vif->p2p) 1917 return; 1918 1919 mutex_lock(&mvm->mutex); 1920 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1921 mutex_unlock(&mvm->mutex); 1922 } 1923 1924 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1925 { 1926 struct iwl_mu_group_mgmt_cmd cmd = {}; 1927 1928 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1929 WLAN_MEMBERSHIP_LEN); 1930 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1931 WLAN_USER_POSITION_LEN); 1932 1933 return iwl_mvm_send_cmd_pdu(mvm, 1934 WIDE_ID(DATA_PATH_GROUP, 1935 UPDATE_MU_GROUPS_CMD), 1936 0, sizeof(cmd), &cmd); 1937 } 1938 1939 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1940 struct ieee80211_vif *vif) 1941 { 1942 if (vif->bss_conf.mu_mimo_owner) { 1943 struct iwl_mu_group_mgmt_notif *notif = _data; 1944 1945 /* 1946 * MU-MIMO Group Id action frame is little endian. We treat 1947 * the data received from firmware as if it came from the 1948 * action frame, so no conversion is needed. 1949 */ 1950 ieee80211_update_mu_groups(vif, 0, 1951 (u8 *)¬if->membership_status, 1952 (u8 *)¬if->user_position); 1953 } 1954 } 1955 1956 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1957 struct iwl_rx_cmd_buffer *rxb) 1958 { 1959 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1960 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1961 1962 ieee80211_iterate_active_interfaces_atomic( 1963 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1964 iwl_mvm_mu_mimo_iface_iterator, notif); 1965 } 1966 1967 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1968 { 1969 u8 byte_num = ppe_pos_bit / 8; 1970 u8 bit_num = ppe_pos_bit % 8; 1971 u8 residue_bits; 1972 u8 res; 1973 1974 if (bit_num <= 5) 1975 return (ppe[byte_num] >> bit_num) & 1976 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1977 1978 /* 1979 * If bit_num > 5, we have to combine bits with next byte. 1980 * Calculate how many bits we need to take from current byte (called 1981 * here "residue_bits"), and add them to bits from next byte. 1982 */ 1983 1984 residue_bits = 8 - bit_num; 1985 1986 res = (ppe[byte_num + 1] & 1987 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1988 residue_bits; 1989 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1990 1991 return res; 1992 } 1993 1994 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1995 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1996 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 1997 bool inheritance) 1998 { 1999 int i; 2000 2001 /* 2002 * FW currently supports only nss == MAX_HE_SUPP_NSS 2003 * 2004 * If nss > MAX: we can ignore values we don't support 2005 * If nss < MAX: we can set zeros in other streams 2006 */ 2007 if (nss > MAX_HE_SUPP_NSS) { 2008 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2009 MAX_HE_SUPP_NSS); 2010 nss = MAX_HE_SUPP_NSS; 2011 } 2012 2013 for (i = 0; i < nss; i++) { 2014 u8 ru_index_tmp = ru_index_bitmap << 1; 2015 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2016 u8 bw; 2017 2018 for (bw = 0; 2019 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2020 bw++) { 2021 ru_index_tmp >>= 1; 2022 2023 /* 2024 * According to the 11be spec, if for a specific BW the PPE Thresholds 2025 * isn't present - it should inherit the thresholds from the last 2026 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2027 * this inheritance - continue in this case 2028 */ 2029 if (!(ru_index_tmp & 1)) { 2030 if (inheritance) 2031 goto set_thresholds; 2032 else 2033 continue; 2034 } 2035 2036 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2037 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2038 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2039 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2040 2041 set_thresholds: 2042 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2043 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2044 } 2045 } 2046 } 2047 2048 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2049 struct ieee80211_link_sta *link_sta, 2050 struct iwl_he_pkt_ext_v2 *pkt_ext, 2051 bool inheritance) 2052 { 2053 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2054 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2055 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2056 u8 ru_index_bitmap = 2057 u8_get_bits(*ppe, 2058 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2059 /* Starting after PPE header */ 2060 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2061 2062 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2063 inheritance); 2064 } 2065 2066 static int 2067 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2068 u8 nominal_padding) 2069 { 2070 int low_th = -1; 2071 int high_th = -1; 2072 int i; 2073 2074 /* all the macros are the same for EHT and HE */ 2075 switch (nominal_padding) { 2076 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2077 low_th = IWL_HE_PKT_EXT_NONE; 2078 high_th = IWL_HE_PKT_EXT_NONE; 2079 break; 2080 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2081 low_th = IWL_HE_PKT_EXT_BPSK; 2082 high_th = IWL_HE_PKT_EXT_NONE; 2083 break; 2084 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2085 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2086 low_th = IWL_HE_PKT_EXT_NONE; 2087 high_th = IWL_HE_PKT_EXT_BPSK; 2088 break; 2089 } 2090 2091 if (low_th < 0 || high_th < 0) 2092 return -EINVAL; 2093 2094 /* Set the PPE thresholds accordingly */ 2095 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2096 u8 bw; 2097 2098 for (bw = 0; 2099 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2100 bw++) { 2101 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2102 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2103 } 2104 } 2105 2106 return 0; 2107 } 2108 2109 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2110 u8 nominal_padding) 2111 { 2112 int i; 2113 2114 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2115 u8 bw; 2116 2117 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2118 bw++) { 2119 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2120 2121 if (nominal_padding > 2122 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2123 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2124 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2125 else if (nominal_padding == 2126 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2127 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2128 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2129 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2130 } 2131 } 2132 } 2133 2134 /* Set the pkt_ext field according to PPE Thresholds element */ 2135 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2136 struct ieee80211_link_sta *link_sta, 2137 struct iwl_he_pkt_ext_v2 *pkt_ext) 2138 { 2139 u8 nominal_padding; 2140 int i, ret = 0; 2141 2142 if (WARN_ON(!link_sta)) 2143 return -EINVAL; 2144 2145 /* Initialize the PPE thresholds to "None" (7), as described in Table 2146 * 9-262ac of 80211.ax/D3.0. 2147 */ 2148 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2149 sizeof(struct iwl_he_pkt_ext_v2)); 2150 2151 if (link_sta->eht_cap.has_eht) { 2152 nominal_padding = 2153 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2154 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2155 2156 /* If PPE Thresholds exists, parse them into a FW-familiar 2157 * format. 2158 */ 2159 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2160 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2161 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2162 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2163 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2164 u8 ru_index_bitmap = 2165 u16_get_bits(*ppe, 2166 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2167 /* Starting after PPE header */ 2168 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2169 2170 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2171 ppe, ppe_pos_bit, true); 2172 /* EHT PPE Thresholds doesn't exist - set the API according to 2173 * HE PPE Tresholds 2174 */ 2175 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2176 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2177 /* Even though HE Capabilities IE doesn't contain PPE 2178 * Thresholds for BW 320Mhz, thresholds for this BW will 2179 * be filled in with the same values as 160Mhz, due to 2180 * the inheritance, as required. 2181 */ 2182 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2183 true); 2184 2185 /* According to the requirements, for MCSs 12-13 the 2186 * maximum value between HE PPE Threshold and Common 2187 * Nominal Packet Padding needs to be taken 2188 */ 2189 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2190 2191 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2192 * take the Thresholds from Common Nominal Packet Padding field 2193 */ 2194 } else { 2195 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2196 nominal_padding); 2197 } 2198 } else if (link_sta->he_cap.has_he) { 2199 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2200 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2201 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2202 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2203 false); 2204 /* PPE Thresholds doesn't exist - set the API PPE values 2205 * according to Common Nominal Packet Padding field. 2206 */ 2207 } else { 2208 nominal_padding = 2209 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2210 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2211 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2212 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2213 nominal_padding); 2214 } 2215 } 2216 2217 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2218 int bw; 2219 2220 for (bw = 0; 2221 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2222 bw++) { 2223 u8 *qam_th = 2224 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2225 2226 IWL_DEBUG_HT(mvm, 2227 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2228 i, bw, qam_th[0], qam_th[1]); 2229 } 2230 } 2231 return ret; 2232 } 2233 2234 /* 2235 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2236 * is enabled or not 2237 */ 2238 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2239 const struct iwl_mvm_vif_link_info *link_info, 2240 struct iwl_he_backoff_conf *trig_based_txf) 2241 { 2242 int i; 2243 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2244 bool mu_edca_enabled = true; 2245 2246 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2247 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2248 &link_info->queue_params[i].mu_edca_param_rec; 2249 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2250 2251 if (!link_info->queue_params[i].mu_edca) { 2252 mu_edca_enabled = false; 2253 break; 2254 } 2255 2256 trig_based_txf[ac].cwmin = 2257 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2258 trig_based_txf[ac].cwmax = 2259 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2260 trig_based_txf[ac].aifsn = 2261 cpu_to_le16(mu_edca->aifsn & 0xf); 2262 trig_based_txf[ac].mu_time = 2263 cpu_to_le16(mu_edca->mu_edca_timer); 2264 } 2265 2266 return mu_edca_enabled; 2267 } 2268 2269 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2270 { 2271 const struct ieee80211_supported_band *sband; 2272 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2273 2274 /* This capability is the same for all bands, 2275 * so take it from one of them. 2276 */ 2277 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2278 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2279 2280 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2281 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2282 } 2283 2284 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2285 struct ieee80211_link_sta *link_sta) 2286 { 2287 u8 *mac_cap_info = 2288 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2289 __le32 htc_flags = 0; 2290 2291 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2292 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2293 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2294 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2295 u8 link_adap = 2296 ((mac_cap_info[2] & 2297 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2298 (mac_cap_info[1] & 2299 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2300 2301 if (link_adap == 2) 2302 htc_flags |= 2303 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2304 else if (link_adap == 3) 2305 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2306 } 2307 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2308 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2309 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2310 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2311 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2312 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2313 2314 return htc_flags; 2315 } 2316 2317 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2318 struct ieee80211_vif *vif, u8 sta_id) 2319 { 2320 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2321 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2322 .sta_id = sta_id, 2323 .tid_limit = IWL_MAX_TID_COUNT, 2324 .bss_color = vif->bss_conf.he_bss_color.color, 2325 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2326 .frame_time_rts_th = 2327 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2328 }; 2329 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2330 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2331 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2332 int size; 2333 struct ieee80211_sta *sta; 2334 u32 flags; 2335 int i; 2336 void *cmd; 2337 2338 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2339 ver = 1; 2340 2341 switch (ver) { 2342 case 1: 2343 /* same layout as v2 except some data at the end */ 2344 cmd = &sta_ctxt_cmd_v2; 2345 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2346 break; 2347 case 2: 2348 cmd = &sta_ctxt_cmd_v2; 2349 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2350 break; 2351 case 3: 2352 cmd = &sta_ctxt_cmd; 2353 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2354 break; 2355 default: 2356 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2357 return; 2358 } 2359 2360 rcu_read_lock(); 2361 2362 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2363 if (IS_ERR_OR_NULL(sta)) { 2364 rcu_read_unlock(); 2365 WARN(1, "Can't find STA to configure HE\n"); 2366 return; 2367 } 2368 2369 if (!sta->deflink.he_cap.has_he) { 2370 rcu_read_unlock(); 2371 return; 2372 } 2373 2374 flags = 0; 2375 2376 /* Block 26-tone RU OFDMA transmissions */ 2377 if (mvmvif->deflink.he_ru_2mhz_block) 2378 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2379 2380 /* HTC flags */ 2381 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2382 2383 /* PPE Thresholds */ 2384 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2385 flags |= STA_CTXT_HE_PACKET_EXT; 2386 2387 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2388 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2389 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2390 2391 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2392 IEEE80211_HE_MAC_CAP2_ACK_EN) 2393 flags |= STA_CTXT_HE_ACK_ENABLED; 2394 2395 rcu_read_unlock(); 2396 2397 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2398 &sta_ctxt_cmd.trig_based_txf[0])) 2399 flags |= STA_CTXT_HE_MU_EDCA_CW; 2400 2401 if (vif->bss_conf.uora_exists) { 2402 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2403 2404 sta_ctxt_cmd.rand_alloc_ecwmin = 2405 vif->bss_conf.uora_ocw_range & 0x7; 2406 sta_ctxt_cmd.rand_alloc_ecwmax = 2407 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2408 } 2409 2410 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2411 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2412 2413 if (vif->bss_conf.nontransmitted) { 2414 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2415 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2416 vif->bss_conf.transmitter_bssid); 2417 sta_ctxt_cmd.max_bssid_indicator = 2418 vif->bss_conf.bssid_indicator; 2419 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2420 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2421 sta_ctxt_cmd.profile_periodicity = 2422 vif->bss_conf.profile_periodicity; 2423 } 2424 2425 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2426 2427 if (ver < 3) { 2428 /* fields before pkt_ext */ 2429 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2430 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2431 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2432 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2433 2434 /* pkt_ext */ 2435 for (i = 0; 2436 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2437 i++) { 2438 u8 bw; 2439 2440 for (bw = 0; 2441 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2442 bw++) { 2443 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2444 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2445 2446 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2447 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2448 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2449 } 2450 } 2451 2452 /* fields after pkt_ext */ 2453 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2454 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2455 sizeof(sta_ctxt_cmd_v2) - 2456 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2457 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2458 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2459 (u8 *)&sta_ctxt_cmd + 2460 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2461 sizeof(sta_ctxt_cmd) - 2462 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2463 sta_ctxt_cmd_v2.reserved3 = 0; 2464 } 2465 2466 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2467 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2468 } 2469 2470 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2471 u32 duration_override, unsigned int link_id) 2472 { 2473 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2474 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2475 2476 if (duration_override > duration) 2477 duration = duration_override; 2478 2479 /* Try really hard to protect the session and hear a beacon 2480 * The new session protection command allows us to protect the 2481 * session for a much longer time since the firmware will internally 2482 * create two events: a 300TU one with a very high priority that 2483 * won't be fragmented which should be enough for 99% of the cases, 2484 * and another one (which we configure here to be 900TU long) which 2485 * will have a slightly lower priority, but more importantly, can be 2486 * fragmented so that it'll allow other activities to run. 2487 */ 2488 if (fw_has_capa(&mvm->fw->ucode_capa, 2489 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2490 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2491 min_duration, false, 2492 link_id); 2493 else 2494 iwl_mvm_protect_session(mvm, vif, duration, 2495 min_duration, 500, false); 2496 } 2497 2498 /* Handle association common part to MLD and non-MLD modes */ 2499 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2500 struct ieee80211_vif *vif, 2501 u64 changes) 2502 { 2503 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2504 int ret; 2505 2506 /* The firmware tracks the MU-MIMO group on its own. 2507 * However, on HW restart we should restore this data. 2508 */ 2509 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2510 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2511 ret = iwl_mvm_update_mu_groups(mvm, vif); 2512 if (ret) 2513 IWL_ERR(mvm, 2514 "failed to update VHT MU_MIMO groups\n"); 2515 } 2516 2517 iwl_mvm_recalc_multicast(mvm); 2518 2519 /* reset rssi values */ 2520 mvmvif->bf_data.ave_beacon_signal = 0; 2521 2522 iwl_mvm_bt_coex_vif_change(mvm); 2523 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2524 IEEE80211_SMPS_AUTOMATIC); 2525 if (fw_has_capa(&mvm->fw->ucode_capa, 2526 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2527 iwl_mvm_config_scan(mvm); 2528 } 2529 2530 /* Execute the common part for MLD and non-MLD modes */ 2531 void 2532 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2533 struct ieee80211_vif *vif, 2534 struct ieee80211_bss_conf *link_conf, 2535 u64 changes) 2536 { 2537 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2538 int ret; 2539 2540 if (changes & BSS_CHANGED_BEACON_INFO) { 2541 /* We received a beacon from the associated AP so 2542 * remove the session protection. 2543 */ 2544 iwl_mvm_stop_session_protection(mvm, vif); 2545 2546 iwl_mvm_sf_update(mvm, vif, false); 2547 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2548 } 2549 2550 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2551 /* Send power command on every beacon change, 2552 * because we may have not enabled beacon abort yet. 2553 */ 2554 BSS_CHANGED_BEACON_INFO)) { 2555 ret = iwl_mvm_power_update_mac(mvm); 2556 if (ret) 2557 IWL_ERR(mvm, "failed to update power mode\n"); 2558 } 2559 2560 if (changes & BSS_CHANGED_CQM) { 2561 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2562 /* reset cqm events tracking */ 2563 mvmvif->bf_data.last_cqm_event = 0; 2564 if (mvmvif->bf_data.bf_enabled) { 2565 /* FIXME: need to update per link when FW API will 2566 * support it 2567 */ 2568 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2569 if (ret) 2570 IWL_ERR(mvm, 2571 "failed to update CQM thresholds\n"); 2572 } 2573 } 2574 2575 if (changes & BSS_CHANGED_BANDWIDTH) 2576 iwl_mvm_update_link_smps(vif, link_conf); 2577 } 2578 2579 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2580 struct ieee80211_vif *vif, 2581 struct ieee80211_bss_conf *bss_conf, 2582 u64 changes) 2583 { 2584 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2585 int ret; 2586 int i; 2587 2588 /* 2589 * Re-calculate the tsf id, as the leader-follower relations depend 2590 * on the beacon interval, which was not known when the station 2591 * interface was added. 2592 */ 2593 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2594 if ((vif->bss_conf.he_support && 2595 !iwlwifi_mod_params.disable_11ax) || 2596 (vif->bss_conf.eht_support && 2597 !iwlwifi_mod_params.disable_11be)) 2598 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2599 2600 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2601 } 2602 2603 /* Update MU EDCA params */ 2604 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2605 vif->cfg.assoc && 2606 ((vif->bss_conf.he_support && 2607 !iwlwifi_mod_params.disable_11ax) || 2608 (vif->bss_conf.eht_support && 2609 !iwlwifi_mod_params.disable_11be))) 2610 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2611 2612 /* 2613 * If we're not associated yet, take the (new) BSSID before associating 2614 * so the firmware knows. If we're already associated, then use the old 2615 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2616 * branch for disassociation below. 2617 */ 2618 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2619 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2620 2621 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2622 if (ret) 2623 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2624 2625 /* after sending it once, adopt mac80211 data */ 2626 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2627 mvmvif->associated = vif->cfg.assoc; 2628 2629 if (changes & BSS_CHANGED_ASSOC) { 2630 if (vif->cfg.assoc) { 2631 /* clear statistics to get clean beacon counter */ 2632 iwl_mvm_request_statistics(mvm, true); 2633 for_each_mvm_vif_valid_link(mvmvif, i) 2634 memset(&mvmvif->link[i]->beacon_stats, 0, 2635 sizeof(mvmvif->link[i]->beacon_stats)); 2636 2637 /* add quota for this interface */ 2638 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2639 if (ret) { 2640 IWL_ERR(mvm, "failed to update quotas\n"); 2641 return; 2642 } 2643 2644 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2645 &mvm->status) && 2646 !fw_has_capa(&mvm->fw->ucode_capa, 2647 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2648 /* 2649 * If we're restarting then the firmware will 2650 * obviously have lost synchronisation with 2651 * the AP. It will attempt to synchronise by 2652 * itself, but we can make it more reliable by 2653 * scheduling a session protection time event. 2654 * 2655 * The firmware needs to receive a beacon to 2656 * catch up with synchronisation, use 110% of 2657 * the beacon interval. 2658 * 2659 * Set a large maximum delay to allow for more 2660 * than a single interface. 2661 * 2662 * For new firmware versions, rely on the 2663 * firmware. This is relevant for DCM scenarios 2664 * only anyway. 2665 */ 2666 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2667 iwl_mvm_protect_session(mvm, vif, dur, dur, 2668 5 * dur, false); 2669 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2670 &mvm->status) && 2671 !vif->bss_conf.dtim_period) { 2672 /* 2673 * If we're not restarting and still haven't 2674 * heard a beacon (dtim period unknown) then 2675 * make sure we still have enough minimum time 2676 * remaining in the time event, since the auth 2677 * might actually have taken quite a while 2678 * (especially for SAE) and so the remaining 2679 * time could be small without us having heard 2680 * a beacon yet. 2681 */ 2682 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2683 } 2684 2685 iwl_mvm_sf_update(mvm, vif, false); 2686 iwl_mvm_power_vif_assoc(mvm, vif); 2687 if (vif->p2p) { 2688 iwl_mvm_update_smps(mvm, vif, 2689 IWL_MVM_SMPS_REQ_PROT, 2690 IEEE80211_SMPS_DYNAMIC, 0); 2691 } 2692 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2693 iwl_mvm_mei_host_disassociated(mvm); 2694 /* 2695 * If update fails - SF might be running in associated 2696 * mode while disassociated - which is forbidden. 2697 */ 2698 ret = iwl_mvm_sf_update(mvm, vif, false); 2699 WARN_ONCE(ret && 2700 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2701 &mvm->status), 2702 "Failed to update SF upon disassociation\n"); 2703 2704 /* 2705 * If we get an assert during the connection (after the 2706 * station has been added, but before the vif is set 2707 * to associated), mac80211 will re-add the station and 2708 * then configure the vif. Since the vif is not 2709 * associated, we would remove the station here and 2710 * this would fail the recovery. 2711 */ 2712 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2713 &mvm->status)) { 2714 /* first remove remaining keys */ 2715 iwl_mvm_sec_key_remove_ap(mvm, vif, 2716 &mvmvif->deflink, 0); 2717 2718 /* 2719 * Remove AP station now that 2720 * the MAC is unassoc 2721 */ 2722 ret = iwl_mvm_rm_sta_id(mvm, vif, 2723 mvmvif->deflink.ap_sta_id); 2724 if (ret) 2725 IWL_ERR(mvm, 2726 "failed to remove AP station\n"); 2727 2728 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2729 } 2730 2731 /* remove quota for this interface */ 2732 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2733 if (ret) 2734 IWL_ERR(mvm, "failed to update quotas\n"); 2735 2736 /* this will take the cleared BSSID from bss_conf */ 2737 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2738 if (ret) 2739 IWL_ERR(mvm, 2740 "failed to update MAC %pM (clear after unassoc)\n", 2741 vif->addr); 2742 } 2743 2744 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2745 } 2746 2747 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2748 changes); 2749 } 2750 2751 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2752 struct ieee80211_vif *vif, 2753 int *ret) 2754 { 2755 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2756 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2757 int i; 2758 2759 lockdep_assert_held(&mvm->mutex); 2760 2761 mvmvif->ap_assoc_sta_count = 0; 2762 2763 /* must be set before quota calculations */ 2764 mvmvif->ap_ibss_active = true; 2765 2766 /* send all the early keys to the device now */ 2767 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2768 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2769 2770 if (!key) 2771 continue; 2772 2773 mvmvif->ap_early_keys[i] = NULL; 2774 2775 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2776 if (*ret) 2777 return true; 2778 } 2779 2780 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2781 iwl_mvm_vif_set_low_latency(mvmvif, true, 2782 LOW_LATENCY_VIF_TYPE); 2783 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2784 } 2785 2786 /* power updated needs to be done before quotas */ 2787 iwl_mvm_power_update_mac(mvm); 2788 2789 return false; 2790 } 2791 2792 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2793 struct ieee80211_vif *vif, 2794 struct ieee80211_bss_conf *link_conf) 2795 { 2796 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2797 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2798 int ret; 2799 2800 mutex_lock(&mvm->mutex); 2801 2802 /* 2803 * Re-calculate the tsf id, as the leader-follower relations depend on 2804 * the beacon interval, which was not known when the AP interface 2805 * was added. 2806 */ 2807 if (vif->type == NL80211_IFTYPE_AP) 2808 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2809 2810 /* For older devices need to send beacon template before adding mac 2811 * context. For the newer, the beacon is a resource that belongs to a 2812 * MAC, so need to send beacon template after adding the mac. 2813 */ 2814 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2815 /* Add the mac context */ 2816 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2817 if (ret) 2818 goto out_unlock; 2819 2820 /* Send the beacon template */ 2821 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2822 if (ret) 2823 goto out_unlock; 2824 } else { 2825 /* Send the beacon template */ 2826 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2827 if (ret) 2828 goto out_unlock; 2829 2830 /* Add the mac context */ 2831 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2832 if (ret) 2833 goto out_unlock; 2834 } 2835 2836 /* Perform the binding */ 2837 ret = iwl_mvm_binding_add_vif(mvm, vif); 2838 if (ret) 2839 goto out_remove; 2840 2841 /* 2842 * This is not very nice, but the simplest: 2843 * For older FWs adding the mcast sta before the bcast station may 2844 * cause assert 0x2b00. 2845 * This is fixed in later FW so make the order of removal depend on 2846 * the TLV 2847 */ 2848 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2849 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2850 if (ret) 2851 goto out_unbind; 2852 /* 2853 * Send the bcast station. At this stage the TBTT and DTIM time 2854 * events are added and applied to the scheduler 2855 */ 2856 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2857 if (ret) { 2858 iwl_mvm_rm_mcast_sta(mvm, vif); 2859 goto out_unbind; 2860 } 2861 } else { 2862 /* 2863 * Send the bcast station. At this stage the TBTT and DTIM time 2864 * events are added and applied to the scheduler 2865 */ 2866 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2867 if (ret) 2868 goto out_unbind; 2869 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2870 if (ret) { 2871 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2872 goto out_unbind; 2873 } 2874 } 2875 2876 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2877 goto out_failed; 2878 2879 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2880 if (ret) 2881 goto out_failed; 2882 2883 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2884 if (vif->p2p && mvm->p2p_device_vif) 2885 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2886 2887 iwl_mvm_bt_coex_vif_change(mvm); 2888 2889 /* we don't support TDLS during DCM */ 2890 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2891 iwl_mvm_teardown_tdls_peers(mvm); 2892 2893 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2894 2895 goto out_unlock; 2896 2897 out_failed: 2898 iwl_mvm_power_update_mac(mvm); 2899 mvmvif->ap_ibss_active = false; 2900 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2901 iwl_mvm_rm_mcast_sta(mvm, vif); 2902 out_unbind: 2903 iwl_mvm_binding_remove_vif(mvm, vif); 2904 out_remove: 2905 iwl_mvm_mac_ctxt_remove(mvm, vif); 2906 out_unlock: 2907 mutex_unlock(&mvm->mutex); 2908 return ret; 2909 } 2910 2911 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2912 struct ieee80211_vif *vif, 2913 struct ieee80211_bss_conf *link_conf) 2914 { 2915 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2916 } 2917 2918 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2919 struct ieee80211_vif *vif) 2920 { 2921 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2922 } 2923 2924 /* Common part for MLD and non-MLD ops */ 2925 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2926 struct ieee80211_vif *vif) 2927 { 2928 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2929 2930 lockdep_assert_held(&mvm->mutex); 2931 2932 iwl_mvm_prepare_mac_removal(mvm, vif); 2933 2934 /* Handle AP stop while in CSA */ 2935 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2936 iwl_mvm_remove_time_event(mvm, mvmvif, 2937 &mvmvif->time_event_data); 2938 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2939 mvmvif->csa_countdown = false; 2940 } 2941 2942 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2943 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2944 mvm->csa_tx_block_bcn_timeout = 0; 2945 } 2946 2947 mvmvif->ap_ibss_active = false; 2948 mvm->ap_last_beacon_gp2 = 0; 2949 2950 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2951 iwl_mvm_vif_set_low_latency(mvmvif, false, 2952 LOW_LATENCY_VIF_TYPE); 2953 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2954 } 2955 2956 iwl_mvm_bt_coex_vif_change(mvm); 2957 } 2958 2959 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2960 struct ieee80211_vif *vif, 2961 struct ieee80211_bss_conf *link_conf) 2962 { 2963 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2964 2965 mutex_lock(&mvm->mutex); 2966 2967 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2968 2969 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2970 if (vif->p2p && mvm->p2p_device_vif) 2971 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2972 2973 iwl_mvm_update_quotas(mvm, false, NULL); 2974 2975 iwl_mvm_ftm_responder_clear(mvm, vif); 2976 2977 /* 2978 * This is not very nice, but the simplest: 2979 * For older FWs removing the mcast sta before the bcast station may 2980 * cause assert 0x2b00. 2981 * This is fixed in later FW (which will stop beaconing when removing 2982 * bcast station). 2983 * So make the order of removal depend on the TLV 2984 */ 2985 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2986 iwl_mvm_rm_mcast_sta(mvm, vif); 2987 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2988 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2989 iwl_mvm_rm_mcast_sta(mvm, vif); 2990 iwl_mvm_binding_remove_vif(mvm, vif); 2991 2992 iwl_mvm_power_update_mac(mvm); 2993 2994 iwl_mvm_mac_ctxt_remove(mvm, vif); 2995 2996 mutex_unlock(&mvm->mutex); 2997 } 2998 2999 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3000 struct ieee80211_vif *vif, 3001 struct ieee80211_bss_conf *link_conf) 3002 { 3003 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3004 } 3005 3006 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3007 struct ieee80211_vif *vif) 3008 { 3009 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3010 } 3011 3012 static void 3013 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3014 struct ieee80211_vif *vif, 3015 struct ieee80211_bss_conf *bss_conf, 3016 u64 changes) 3017 { 3018 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3019 3020 /* Changes will be applied when the AP/IBSS is started */ 3021 if (!mvmvif->ap_ibss_active) 3022 return; 3023 3024 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3025 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3026 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3027 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3028 3029 /* Need to send a new beacon template to the FW */ 3030 if (changes & BSS_CHANGED_BEACON && 3031 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3032 IWL_WARN(mvm, "Failed updating beacon data\n"); 3033 3034 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3035 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3036 3037 if (ret) 3038 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3039 ret); 3040 } 3041 3042 } 3043 3044 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3045 struct ieee80211_vif *vif, 3046 struct ieee80211_bss_conf *bss_conf, 3047 u64 changes) 3048 { 3049 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3050 3051 mutex_lock(&mvm->mutex); 3052 3053 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3054 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3055 3056 switch (vif->type) { 3057 case NL80211_IFTYPE_STATION: 3058 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3059 break; 3060 case NL80211_IFTYPE_AP: 3061 case NL80211_IFTYPE_ADHOC: 3062 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3063 break; 3064 case NL80211_IFTYPE_MONITOR: 3065 if (changes & BSS_CHANGED_MU_GROUPS) 3066 iwl_mvm_update_mu_groups(mvm, vif); 3067 break; 3068 default: 3069 /* shouldn't happen */ 3070 WARN_ON_ONCE(1); 3071 } 3072 3073 if (changes & BSS_CHANGED_TXPOWER) { 3074 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3075 bss_conf->txpower); 3076 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3077 } 3078 3079 mutex_unlock(&mvm->mutex); 3080 } 3081 3082 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3083 struct ieee80211_scan_request *hw_req) 3084 { 3085 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3086 int ret; 3087 3088 if (hw_req->req.n_channels == 0 || 3089 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3090 return -EINVAL; 3091 3092 mutex_lock(&mvm->mutex); 3093 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3094 mutex_unlock(&mvm->mutex); 3095 3096 return ret; 3097 } 3098 3099 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3100 struct ieee80211_vif *vif) 3101 { 3102 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3103 3104 mutex_lock(&mvm->mutex); 3105 3106 /* Due to a race condition, it's possible that mac80211 asks 3107 * us to stop a hw_scan when it's already stopped. This can 3108 * happen, for instance, if we stopped the scan ourselves, 3109 * called ieee80211_scan_completed() and the userspace called 3110 * cancel scan scan before ieee80211_scan_work() could run. 3111 * To handle that, simply return if the scan is not running. 3112 */ 3113 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3114 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3115 3116 mutex_unlock(&mvm->mutex); 3117 } 3118 3119 void 3120 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3121 struct ieee80211_sta *sta, u16 tids, 3122 int num_frames, 3123 enum ieee80211_frame_release_type reason, 3124 bool more_data) 3125 { 3126 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3127 3128 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3129 3130 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3131 tids, more_data, false); 3132 } 3133 3134 void 3135 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3136 struct ieee80211_sta *sta, u16 tids, 3137 int num_frames, 3138 enum ieee80211_frame_release_type reason, 3139 bool more_data) 3140 { 3141 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3142 3143 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3144 3145 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3146 tids, more_data, true); 3147 } 3148 3149 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3150 enum sta_notify_cmd cmd, 3151 struct ieee80211_sta *sta) 3152 { 3153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3154 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3155 unsigned long txqs = 0, tids = 0; 3156 int tid; 3157 3158 /* 3159 * If we have TVQM then we get too high queue numbers - luckily 3160 * we really shouldn't get here with that because such hardware 3161 * should have firmware supporting buffer station offload. 3162 */ 3163 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3164 return; 3165 3166 spin_lock_bh(&mvmsta->lock); 3167 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3168 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3169 3170 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3171 continue; 3172 3173 __set_bit(tid_data->txq_id, &txqs); 3174 3175 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3176 continue; 3177 3178 __set_bit(tid, &tids); 3179 } 3180 3181 switch (cmd) { 3182 case STA_NOTIFY_SLEEP: 3183 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3184 ieee80211_sta_set_buffered(sta, tid, true); 3185 3186 if (txqs) 3187 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3188 /* 3189 * The fw updates the STA to be asleep. Tx packets on the Tx 3190 * queues to this station will not be transmitted. The fw will 3191 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3192 */ 3193 break; 3194 case STA_NOTIFY_AWAKE: 3195 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3196 break; 3197 3198 if (txqs) 3199 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3200 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3201 break; 3202 default: 3203 break; 3204 } 3205 spin_unlock_bh(&mvmsta->lock); 3206 } 3207 3208 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3209 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3210 { 3211 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3212 } 3213 3214 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3215 { 3216 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3217 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3218 struct ieee80211_sta *sta; 3219 struct iwl_mvm_sta *mvmsta; 3220 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3221 3222 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3223 return; 3224 3225 rcu_read_lock(); 3226 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3227 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3228 rcu_read_unlock(); 3229 return; 3230 } 3231 3232 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3233 3234 if (!mvmsta->vif || 3235 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3236 rcu_read_unlock(); 3237 return; 3238 } 3239 3240 if (mvmsta->sleeping != sleeping) { 3241 mvmsta->sleeping = sleeping; 3242 __iwl_mvm_mac_sta_notify(mvm->hw, 3243 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3244 sta); 3245 ieee80211_sta_ps_transition(sta, sleeping); 3246 } 3247 3248 if (sleeping) { 3249 switch (notif->type) { 3250 case IWL_MVM_PM_EVENT_AWAKE: 3251 case IWL_MVM_PM_EVENT_ASLEEP: 3252 break; 3253 case IWL_MVM_PM_EVENT_UAPSD: 3254 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3255 break; 3256 case IWL_MVM_PM_EVENT_PS_POLL: 3257 ieee80211_sta_pspoll(sta); 3258 break; 3259 default: 3260 break; 3261 } 3262 } 3263 3264 rcu_read_unlock(); 3265 } 3266 3267 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3268 struct ieee80211_vif *vif, 3269 struct ieee80211_sta *sta) 3270 { 3271 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3272 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3273 unsigned int link_id; 3274 3275 /* 3276 * This is called before mac80211 does RCU synchronisation, 3277 * so here we already invalidate our internal RCU-protected 3278 * station pointer. The rest of the code will thus no longer 3279 * be able to find the station this way, and we don't rely 3280 * on further RCU synchronisation after the sta_state() 3281 * callback deleted the station. 3282 * Since there's mvm->mutex here, no need to have RCU lock for 3283 * mvm_sta->link access. 3284 */ 3285 mutex_lock(&mvm->mutex); 3286 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3287 struct iwl_mvm_link_sta *link_sta; 3288 u32 sta_id; 3289 3290 if (!mvm_sta->link[link_id]) 3291 continue; 3292 3293 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3294 lockdep_is_held(&mvm->mutex)); 3295 sta_id = link_sta->sta_id; 3296 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3297 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3298 ERR_PTR(-ENOENT)); 3299 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3300 } 3301 } 3302 mutex_unlock(&mvm->mutex); 3303 } 3304 3305 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3306 const u8 *bssid) 3307 { 3308 int i; 3309 3310 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3311 struct iwl_mvm_tcm_mac *mdata; 3312 3313 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3314 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3315 mdata->opened_rx_ba_sessions = false; 3316 } 3317 3318 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3319 return; 3320 3321 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3322 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3323 return; 3324 } 3325 3326 if (!vif->p2p && 3327 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3328 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3329 return; 3330 } 3331 3332 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3333 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3334 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3335 return; 3336 } 3337 } 3338 3339 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3340 } 3341 3342 static void 3343 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3344 struct ieee80211_vif *vif, u8 *peer_addr, 3345 enum nl80211_tdls_operation action) 3346 { 3347 struct iwl_fw_dbg_trigger_tlv *trig; 3348 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3349 3350 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3351 FW_DBG_TRIGGER_TDLS); 3352 if (!trig) 3353 return; 3354 3355 tdls_trig = (void *)trig->data; 3356 3357 if (!(tdls_trig->action_bitmap & BIT(action))) 3358 return; 3359 3360 if (tdls_trig->peer_mode && 3361 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3362 return; 3363 3364 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3365 "TDLS event occurred, peer %pM, action %d", 3366 peer_addr, action); 3367 } 3368 3369 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3370 bool tolerated; 3371 }; 3372 3373 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3374 struct cfg80211_bss *bss, 3375 void *_data) 3376 { 3377 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3378 const struct cfg80211_bss_ies *ies; 3379 const struct element *elem; 3380 3381 rcu_read_lock(); 3382 ies = rcu_dereference(bss->ies); 3383 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3384 ies->len); 3385 3386 if (!elem || elem->datalen < 10 || 3387 !(elem->data[10] & 3388 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3389 data->tolerated = false; 3390 } 3391 rcu_read_unlock(); 3392 } 3393 3394 static void 3395 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3396 struct ieee80211_vif *vif, 3397 unsigned int link_id, 3398 struct ieee80211_bss_conf *link_conf) 3399 { 3400 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3401 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3402 .tolerated = true, 3403 }; 3404 3405 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3406 !mvmvif->link[link_id])) 3407 return; 3408 3409 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3410 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3411 return; 3412 } 3413 3414 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3415 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3416 &iter_data); 3417 3418 /* 3419 * If there is at least one AP on radar channel that cannot 3420 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3421 */ 3422 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3423 } 3424 3425 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3426 struct ieee80211_vif *vif) 3427 { 3428 struct ieee80211_supported_band *sband; 3429 const struct ieee80211_sta_he_cap *he_cap; 3430 3431 if (vif->type != NL80211_IFTYPE_STATION) 3432 return; 3433 3434 if (!mvm->cca_40mhz_workaround) 3435 return; 3436 3437 /* decrement and check that we reached zero */ 3438 mvm->cca_40mhz_workaround--; 3439 if (mvm->cca_40mhz_workaround) 3440 return; 3441 3442 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3443 3444 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3445 3446 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3447 3448 if (he_cap) { 3449 /* we know that ours is writable */ 3450 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3451 3452 he->he_cap_elem.phy_cap_info[0] |= 3453 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3454 } 3455 } 3456 3457 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3458 struct ieee80211_vif *vif, 3459 struct iwl_mvm_sta *mvm_sta) 3460 { 3461 #if IS_ENABLED(CONFIG_IWLMEI) 3462 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3463 struct iwl_mei_conn_info conn_info = { 3464 .ssid_len = vif->cfg.ssid_len, 3465 }; 3466 3467 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3468 return; 3469 3470 if (!mvm->mei_registered) 3471 return; 3472 3473 /* FIXME: MEI needs to be updated for MLO */ 3474 if (!vif->bss_conf.chandef.chan) 3475 return; 3476 3477 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3478 3479 switch (mvm_sta->pairwise_cipher) { 3480 case WLAN_CIPHER_SUITE_TKIP: 3481 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3482 break; 3483 case WLAN_CIPHER_SUITE_CCMP: 3484 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3485 break; 3486 case WLAN_CIPHER_SUITE_GCMP: 3487 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3488 break; 3489 case WLAN_CIPHER_SUITE_GCMP_256: 3490 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3491 break; 3492 case 0: 3493 /* open profile */ 3494 break; 3495 default: 3496 /* cipher not supported, don't send anything to iwlmei */ 3497 return; 3498 } 3499 3500 switch (mvmvif->rekey_data.akm) { 3501 case WLAN_AKM_SUITE_SAE & 0xff: 3502 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3503 break; 3504 case WLAN_AKM_SUITE_PSK & 0xff: 3505 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3506 break; 3507 case WLAN_AKM_SUITE_8021X & 0xff: 3508 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3509 break; 3510 case 0: 3511 /* open profile */ 3512 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3513 break; 3514 default: 3515 /* auth method / AKM not supported */ 3516 /* TODO: All the FT vesions of these? */ 3517 return; 3518 } 3519 3520 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3521 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3522 3523 /* TODO: add support for collocated AP data */ 3524 iwl_mei_host_associated(&conn_info, NULL); 3525 #endif 3526 } 3527 3528 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3529 struct ieee80211_vif *vif, 3530 bool force_assoc_off) 3531 { 3532 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3533 } 3534 3535 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3536 struct ieee80211_vif *vif, 3537 struct ieee80211_sta *sta, 3538 enum ieee80211_sta_state old_state, 3539 enum ieee80211_sta_state new_state) 3540 { 3541 static const struct iwl_mvm_sta_state_ops callbacks = { 3542 .add_sta = iwl_mvm_add_sta, 3543 .update_sta = iwl_mvm_update_sta, 3544 .rm_sta = iwl_mvm_rm_sta, 3545 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3546 }; 3547 3548 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3549 &callbacks); 3550 } 3551 3552 /* FIXME: temporary making two assumptions in all sta handling functions: 3553 * (1) when setting sta state, the link exists and protected 3554 * (2) if a link is valid in sta then it's valid in vif (can 3555 * use same index in the link array) 3556 */ 3557 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3558 struct ieee80211_vif *vif, 3559 struct ieee80211_sta *sta) 3560 { 3561 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3562 unsigned int link_id; 3563 3564 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3565 struct ieee80211_bss_conf *conf = 3566 link_conf_dereference_check(vif, link_id); 3567 struct ieee80211_link_sta *link_sta = 3568 link_sta_dereference_check(sta, link_id); 3569 3570 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3571 continue; 3572 3573 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3574 mvmvif->link[link_id]->phy_ctxt->channel->band); 3575 } 3576 } 3577 3578 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3579 3580 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3581 struct ieee80211_vif *vif, 3582 struct ieee80211_sta *sta) 3583 { 3584 struct ieee80211_link_sta *link_sta; 3585 unsigned int link_id; 3586 3587 /* Beacon interval check - firmware will crash if the beacon 3588 * interval is less than 16. We can't avoid connecting at all, 3589 * so refuse the station state change, this will cause mac80211 3590 * to abandon attempts to connect to this AP, and eventually 3591 * wpa_s will blocklist the AP... 3592 */ 3593 3594 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3595 struct ieee80211_bss_conf *link_conf = 3596 link_conf_dereference_protected(vif, link_id); 3597 3598 if (!link_conf) 3599 continue; 3600 3601 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3602 IWL_ERR(mvm, 3603 "Beacon interval %d for AP %pM is too small\n", 3604 link_conf->beacon_int, link_sta->addr); 3605 return false; 3606 } 3607 3608 link_conf->he_support = link_sta->he_cap.has_he; 3609 } 3610 3611 return true; 3612 } 3613 3614 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3615 struct ieee80211_vif *vif, 3616 struct ieee80211_sta *sta, 3617 bool is_sta) 3618 { 3619 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3620 struct ieee80211_link_sta *link_sta; 3621 unsigned int link_id; 3622 3623 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3624 struct ieee80211_bss_conf *link_conf = 3625 link_conf_dereference_protected(vif, link_id); 3626 3627 if (!link_conf || !mvmvif->link[link_id]) 3628 continue; 3629 3630 link_conf->he_support = link_sta->he_cap.has_he; 3631 3632 if (is_sta) { 3633 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3634 if (link_sta->he_cap.has_he) 3635 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3636 link_id, 3637 link_conf); 3638 } 3639 } 3640 } 3641 3642 static int 3643 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3644 struct ieee80211_vif *vif, 3645 struct ieee80211_sta *sta, 3646 const struct iwl_mvm_sta_state_ops *callbacks) 3647 { 3648 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3649 struct ieee80211_link_sta *link_sta; 3650 unsigned int i; 3651 int ret; 3652 3653 lockdep_assert_held(&mvm->mutex); 3654 3655 if (vif->type == NL80211_IFTYPE_STATION && 3656 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3657 return -EINVAL; 3658 3659 if (sta->tdls && 3660 (vif->p2p || 3661 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3662 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3663 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3664 return -EBUSY; 3665 } 3666 3667 ret = callbacks->add_sta(mvm, vif, sta); 3668 if (sta->tdls && ret == 0) { 3669 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3670 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3671 NL80211_TDLS_SETUP); 3672 } 3673 3674 for_each_sta_active_link(vif, sta, link_sta, i) 3675 link_sta->agg.max_rc_amsdu_len = 1; 3676 3677 ieee80211_sta_recalc_aggregates(sta); 3678 3679 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3680 mvmvif->ap_sta = sta; 3681 3682 return 0; 3683 } 3684 3685 static int 3686 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3687 struct iwl_mvm *mvm, 3688 struct ieee80211_vif *vif, 3689 struct ieee80211_sta *sta, 3690 const struct iwl_mvm_sta_state_ops *callbacks) 3691 { 3692 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3693 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3694 struct ieee80211_link_sta *link_sta; 3695 unsigned int link_id; 3696 3697 lockdep_assert_held(&mvm->mutex); 3698 3699 if (vif->type == NL80211_IFTYPE_AP) { 3700 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3701 mvmvif->ap_assoc_sta_count++; 3702 callbacks->mac_ctxt_changed(mvm, vif, false); 3703 3704 /* since the below is not for MLD API, it's ok to use 3705 * the default bss_conf 3706 */ 3707 if (!mvm->mld_api_is_used && 3708 ((vif->bss_conf.he_support && 3709 !iwlwifi_mod_params.disable_11ax) || 3710 (vif->bss_conf.eht_support && 3711 !iwlwifi_mod_params.disable_11be))) 3712 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3713 } else if (vif->type == NL80211_IFTYPE_STATION) { 3714 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3715 3716 callbacks->mac_ctxt_changed(mvm, vif, false); 3717 3718 if (!mvm->mld_api_is_used) 3719 goto out; 3720 3721 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3722 struct ieee80211_bss_conf *link_conf = 3723 link_conf_dereference_protected(vif, link_id); 3724 3725 if (WARN_ON(!link_conf)) 3726 return -EINVAL; 3727 if (!mvmvif->link[link_id]) 3728 continue; 3729 3730 iwl_mvm_link_changed(mvm, vif, link_conf, 3731 LINK_CONTEXT_MODIFY_ALL & 3732 ~LINK_CONTEXT_MODIFY_ACTIVE, 3733 true); 3734 } 3735 } 3736 3737 out: 3738 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3739 3740 return callbacks->update_sta(mvm, vif, sta); 3741 } 3742 3743 static int 3744 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3745 struct ieee80211_vif *vif, 3746 struct ieee80211_sta *sta, 3747 const struct iwl_mvm_sta_state_ops *callbacks) 3748 { 3749 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3750 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3751 3752 lockdep_assert_held(&mvm->mutex); 3753 3754 /* we don't support TDLS during DCM */ 3755 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3756 iwl_mvm_teardown_tdls_peers(mvm); 3757 3758 if (sta->tdls) { 3759 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3760 NL80211_TDLS_ENABLE_LINK); 3761 } else { 3762 /* enable beacon filtering */ 3763 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3764 3765 mvmvif->authorized = 1; 3766 3767 callbacks->mac_ctxt_changed(mvm, vif, false); 3768 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3769 3770 /* when client is authorized (AP station marked as such), 3771 * try to enable more links 3772 */ 3773 if (vif->type == NL80211_IFTYPE_STATION && 3774 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3775 iwl_mvm_mld_select_links(mvm, vif, false); 3776 } 3777 3778 mvm_sta->authorized = true; 3779 3780 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3781 3782 /* MFP is set by default before the station is authorized. 3783 * Clear it here in case it's not used. 3784 */ 3785 if (!sta->mfp) 3786 return callbacks->update_sta(mvm, vif, sta); 3787 3788 return 0; 3789 } 3790 3791 static int 3792 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3793 struct ieee80211_vif *vif, 3794 struct ieee80211_sta *sta, 3795 const struct iwl_mvm_sta_state_ops *callbacks) 3796 { 3797 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3798 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3799 3800 lockdep_assert_held(&mvm->mutex); 3801 3802 mvmsta->authorized = false; 3803 3804 /* once we move into assoc state, need to update rate scale to 3805 * disable using wide bandwidth 3806 */ 3807 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3808 3809 if (!sta->tdls) { 3810 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3811 * yet to avoid sending high prio again for a little 3812 * time. 3813 */ 3814 mvmvif->authorized = 0; 3815 3816 /* disable beacon filtering */ 3817 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3818 } 3819 3820 return 0; 3821 } 3822 3823 /* Common part for MLD and non-MLD modes */ 3824 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3825 struct ieee80211_vif *vif, 3826 struct ieee80211_sta *sta, 3827 enum ieee80211_sta_state old_state, 3828 enum ieee80211_sta_state new_state, 3829 const struct iwl_mvm_sta_state_ops *callbacks) 3830 { 3831 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3832 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3833 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3834 struct ieee80211_link_sta *link_sta; 3835 unsigned int link_id; 3836 int ret; 3837 3838 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3839 sta->addr, old_state, new_state); 3840 3841 /* 3842 * If we are in a STA removal flow and in DQA mode: 3843 * 3844 * This is after the sync_rcu part, so the queues have already been 3845 * flushed. No more TXs on their way in mac80211's path, and no more in 3846 * the queues. 3847 * Also, we won't be getting any new TX frames for this station. 3848 * What we might have are deferred TX frames that need to be taken care 3849 * of. 3850 * 3851 * Drop any still-queued deferred-frame before removing the STA, and 3852 * make sure the worker is no longer handling frames for this STA. 3853 */ 3854 if (old_state == IEEE80211_STA_NONE && 3855 new_state == IEEE80211_STA_NOTEXIST) { 3856 flush_work(&mvm->add_stream_wk); 3857 3858 /* 3859 * No need to make sure deferred TX indication is off since the 3860 * worker will already remove it if it was on 3861 */ 3862 3863 /* 3864 * Additionally, reset the 40 MHz capability if we disconnected 3865 * from the AP now. 3866 */ 3867 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3868 3869 /* Also free dup data just in case any assertions below fail */ 3870 kfree(mvm_sta->dup_data); 3871 } 3872 3873 mutex_lock(&mvm->mutex); 3874 3875 /* this would be a mac80211 bug ... but don't crash, unless we had a 3876 * firmware crash while we were activating a link, in which case it is 3877 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3878 * recovery flow since we spit tons of error messages anyway. 3879 */ 3880 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3881 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 3882 !mvmvif->link[link_id]->phy_ctxt)) { 3883 mutex_unlock(&mvm->mutex); 3884 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3885 &mvm->status) ? 0 : -EINVAL; 3886 } 3887 } 3888 3889 /* track whether or not the station is associated */ 3890 mvm_sta->sta_state = new_state; 3891 3892 if (old_state == IEEE80211_STA_NOTEXIST && 3893 new_state == IEEE80211_STA_NONE) { 3894 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3895 callbacks); 3896 if (ret < 0) 3897 goto out_unlock; 3898 } else if (old_state == IEEE80211_STA_NONE && 3899 new_state == IEEE80211_STA_AUTH) { 3900 /* 3901 * EBS may be disabled due to previous failures reported by FW. 3902 * Reset EBS status here assuming environment has been changed. 3903 */ 3904 mvm->last_ebs_successful = true; 3905 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3906 ret = 0; 3907 } else if (old_state == IEEE80211_STA_AUTH && 3908 new_state == IEEE80211_STA_ASSOC) { 3909 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3910 callbacks); 3911 } else if (old_state == IEEE80211_STA_ASSOC && 3912 new_state == IEEE80211_STA_AUTHORIZED) { 3913 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3914 callbacks); 3915 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3916 new_state == IEEE80211_STA_ASSOC) { 3917 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3918 callbacks); 3919 } else if (old_state == IEEE80211_STA_ASSOC && 3920 new_state == IEEE80211_STA_AUTH) { 3921 if (vif->type == NL80211_IFTYPE_AP) { 3922 mvmvif->ap_assoc_sta_count--; 3923 callbacks->mac_ctxt_changed(mvm, vif, false); 3924 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3925 iwl_mvm_stop_session_protection(mvm, vif); 3926 ret = 0; 3927 } else if (old_state == IEEE80211_STA_AUTH && 3928 new_state == IEEE80211_STA_NONE) { 3929 ret = 0; 3930 } else if (old_state == IEEE80211_STA_NONE && 3931 new_state == IEEE80211_STA_NOTEXIST) { 3932 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3933 iwl_mvm_stop_session_protection(mvm, vif); 3934 mvmvif->ap_sta = NULL; 3935 } 3936 ret = callbacks->rm_sta(mvm, vif, sta); 3937 if (sta->tdls) { 3938 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3939 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3940 NL80211_TDLS_DISABLE_LINK); 3941 } 3942 3943 if (unlikely(ret && 3944 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3945 &mvm->status))) 3946 ret = 0; 3947 } else { 3948 ret = -EIO; 3949 } 3950 out_unlock: 3951 mutex_unlock(&mvm->mutex); 3952 3953 if (sta->tdls && ret == 0) { 3954 if (old_state == IEEE80211_STA_NOTEXIST && 3955 new_state == IEEE80211_STA_NONE) 3956 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3957 else if (old_state == IEEE80211_STA_NONE && 3958 new_state == IEEE80211_STA_NOTEXIST) 3959 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3960 } 3961 3962 return ret; 3963 } 3964 3965 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3966 { 3967 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3968 3969 mvm->rts_threshold = value; 3970 3971 return 0; 3972 } 3973 3974 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3975 struct ieee80211_sta *sta, u32 changed) 3976 { 3977 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3978 3979 if (changed & (IEEE80211_RC_BW_CHANGED | 3980 IEEE80211_RC_SUPP_RATES_CHANGED | 3981 IEEE80211_RC_NSS_CHANGED)) 3982 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3983 3984 if (vif->type == NL80211_IFTYPE_STATION && 3985 changed & IEEE80211_RC_NSS_CHANGED) 3986 iwl_mvm_sf_update(mvm, vif, false); 3987 } 3988 3989 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3990 struct ieee80211_vif *vif, 3991 unsigned int link_id, u16 ac, 3992 const struct ieee80211_tx_queue_params *params) 3993 { 3994 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3995 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3996 3997 mvmvif->deflink.queue_params[ac] = *params; 3998 3999 /* 4000 * No need to update right away, we'll get BSS_CHANGED_QOS 4001 * The exception is P2P_DEVICE interface which needs immediate update. 4002 */ 4003 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4004 int ret; 4005 4006 mutex_lock(&mvm->mutex); 4007 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4008 mutex_unlock(&mvm->mutex); 4009 return ret; 4010 } 4011 return 0; 4012 } 4013 4014 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4015 struct ieee80211_vif *vif, 4016 struct ieee80211_prep_tx_info *info) 4017 { 4018 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4019 4020 mutex_lock(&mvm->mutex); 4021 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4022 mutex_unlock(&mvm->mutex); 4023 } 4024 4025 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4026 struct ieee80211_vif *vif, 4027 struct ieee80211_prep_tx_info *info) 4028 { 4029 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4030 4031 /* for successful cases (auth/assoc), don't cancel session protection */ 4032 if (info->success) 4033 return; 4034 4035 mutex_lock(&mvm->mutex); 4036 iwl_mvm_stop_session_protection(mvm, vif); 4037 mutex_unlock(&mvm->mutex); 4038 } 4039 4040 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4041 struct ieee80211_vif *vif, 4042 struct cfg80211_sched_scan_request *req, 4043 struct ieee80211_scan_ies *ies) 4044 { 4045 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4046 4047 int ret; 4048 4049 mutex_lock(&mvm->mutex); 4050 4051 if (!vif->cfg.idle) { 4052 ret = -EBUSY; 4053 goto out; 4054 } 4055 4056 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4057 4058 out: 4059 mutex_unlock(&mvm->mutex); 4060 return ret; 4061 } 4062 4063 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4064 struct ieee80211_vif *vif) 4065 { 4066 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4067 int ret; 4068 4069 mutex_lock(&mvm->mutex); 4070 4071 /* Due to a race condition, it's possible that mac80211 asks 4072 * us to stop a sched_scan when it's already stopped. This 4073 * can happen, for instance, if we stopped the scan ourselves, 4074 * called ieee80211_sched_scan_stopped() and the userspace called 4075 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4076 * could run. To handle this, simply return if the scan is 4077 * not running. 4078 */ 4079 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4080 mutex_unlock(&mvm->mutex); 4081 return 0; 4082 } 4083 4084 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4085 mutex_unlock(&mvm->mutex); 4086 iwl_mvm_wait_for_async_handlers(mvm); 4087 4088 return ret; 4089 } 4090 4091 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4092 enum set_key_cmd cmd, 4093 struct ieee80211_vif *vif, 4094 struct ieee80211_sta *sta, 4095 struct ieee80211_key_conf *key) 4096 { 4097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4098 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4099 struct iwl_mvm_sta *mvmsta = NULL; 4100 struct iwl_mvm_key_pn *ptk_pn = NULL; 4101 int keyidx = key->keyidx; 4102 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4103 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4104 int ret, i; 4105 u8 key_offset; 4106 4107 if (sta) 4108 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4109 4110 switch (key->cipher) { 4111 case WLAN_CIPHER_SUITE_TKIP: 4112 if (!mvm->trans->trans_cfg->gen2) { 4113 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4114 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4115 } else if (vif->type == NL80211_IFTYPE_STATION) { 4116 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4117 } else { 4118 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4119 return -EOPNOTSUPP; 4120 } 4121 break; 4122 case WLAN_CIPHER_SUITE_CCMP: 4123 case WLAN_CIPHER_SUITE_GCMP: 4124 case WLAN_CIPHER_SUITE_GCMP_256: 4125 if (!iwl_mvm_has_new_tx_api(mvm)) 4126 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4127 break; 4128 case WLAN_CIPHER_SUITE_AES_CMAC: 4129 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4130 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4131 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4132 break; 4133 case WLAN_CIPHER_SUITE_WEP40: 4134 case WLAN_CIPHER_SUITE_WEP104: 4135 if (vif->type == NL80211_IFTYPE_STATION) 4136 break; 4137 if (iwl_mvm_has_new_tx_api(mvm)) 4138 return -EOPNOTSUPP; 4139 /* support HW crypto on TX */ 4140 return 0; 4141 default: 4142 return -EOPNOTSUPP; 4143 } 4144 4145 switch (cmd) { 4146 case SET_KEY: 4147 if (vif->type == NL80211_IFTYPE_STATION && 4148 (keyidx == 6 || keyidx == 7)) 4149 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4150 key); 4151 4152 if ((vif->type == NL80211_IFTYPE_ADHOC || 4153 vif->type == NL80211_IFTYPE_AP) && !sta) { 4154 /* 4155 * GTK on AP interface is a TX-only key, return 0; 4156 * on IBSS they're per-station and because we're lazy 4157 * we don't support them for RX, so do the same. 4158 * CMAC/GMAC in AP/IBSS modes must be done in software 4159 * on older NICs. 4160 * 4161 * Except, of course, beacon protection - it must be 4162 * offloaded since we just set a beacon template, and 4163 * then we must also offload the IGTK (not just BIGTK) 4164 * for firmware reasons. 4165 * 4166 * So just check for beacon protection - if we don't 4167 * have it we cannot get here with keyidx >= 6, and 4168 * if we do have it we need to send the key to FW in 4169 * all cases (CMAC/GMAC). 4170 */ 4171 if (!wiphy_ext_feature_isset(hw->wiphy, 4172 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4173 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4174 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4175 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4176 ret = -EOPNOTSUPP; 4177 break; 4178 } 4179 4180 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4181 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4182 !iwl_mvm_has_new_tx_api(mvm)) { 4183 key->hw_key_idx = STA_KEY_IDX_INVALID; 4184 ret = 0; 4185 break; 4186 } 4187 4188 if (!mvmvif->ap_ibss_active) { 4189 for (i = 0; 4190 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4191 i++) { 4192 if (!mvmvif->ap_early_keys[i]) { 4193 mvmvif->ap_early_keys[i] = key; 4194 break; 4195 } 4196 } 4197 4198 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4199 ret = -ENOSPC; 4200 else 4201 ret = 0; 4202 4203 break; 4204 } 4205 } 4206 4207 /* During FW restart, in order to restore the state as it was, 4208 * don't try to reprogram keys we previously failed for. 4209 */ 4210 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4211 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4212 IWL_DEBUG_MAC80211(mvm, 4213 "skip invalid idx key programming during restart\n"); 4214 ret = 0; 4215 break; 4216 } 4217 4218 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4219 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4220 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4221 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4222 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4223 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4224 struct ieee80211_key_seq seq; 4225 int tid, q; 4226 4227 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4228 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4229 mvm->trans->num_rx_queues), 4230 GFP_KERNEL); 4231 if (!ptk_pn) { 4232 ret = -ENOMEM; 4233 break; 4234 } 4235 4236 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4237 ieee80211_get_key_rx_seq(key, tid, &seq); 4238 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4239 memcpy(ptk_pn->q[q].pn[tid], 4240 seq.ccmp.pn, 4241 IEEE80211_CCMP_PN_LEN); 4242 } 4243 4244 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4245 } 4246 4247 /* in HW restart reuse the index, otherwise request a new one */ 4248 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4249 key_offset = key->hw_key_idx; 4250 else 4251 key_offset = STA_KEY_IDX_INVALID; 4252 4253 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4254 mvmsta->pairwise_cipher = key->cipher; 4255 4256 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4257 sta ? sta->addr : NULL, key->keyidx); 4258 4259 if (sec_key_ver) 4260 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4261 else 4262 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4263 4264 if (ret) { 4265 IWL_WARN(mvm, "set key failed\n"); 4266 key->hw_key_idx = STA_KEY_IDX_INVALID; 4267 if (ptk_pn) { 4268 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4269 kfree(ptk_pn); 4270 } 4271 /* 4272 * can't add key for RX, but we don't need it 4273 * in the device for TX so still return 0, 4274 * unless we have new TX API where we cannot 4275 * put key material into the TX_CMD 4276 */ 4277 if (iwl_mvm_has_new_tx_api(mvm)) 4278 ret = -EOPNOTSUPP; 4279 else 4280 ret = 0; 4281 } 4282 4283 break; 4284 case DISABLE_KEY: 4285 if (vif->type == NL80211_IFTYPE_STATION && 4286 (keyidx == 6 || keyidx == 7)) 4287 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4288 NULL); 4289 4290 ret = -ENOENT; 4291 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4292 if (mvmvif->ap_early_keys[i] == key) { 4293 mvmvif->ap_early_keys[i] = NULL; 4294 ret = 0; 4295 } 4296 } 4297 4298 /* found in pending list - don't do anything else */ 4299 if (ret == 0) 4300 break; 4301 4302 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4303 ret = 0; 4304 break; 4305 } 4306 4307 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4308 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4309 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4310 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4311 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4312 ptk_pn = rcu_dereference_protected( 4313 mvmsta->ptk_pn[keyidx], 4314 lockdep_is_held(&mvm->mutex)); 4315 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4316 if (ptk_pn) 4317 kfree_rcu(ptk_pn, rcu_head); 4318 } 4319 4320 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4321 if (sec_key_ver) 4322 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4323 else 4324 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4325 break; 4326 default: 4327 ret = -EINVAL; 4328 } 4329 4330 return ret; 4331 } 4332 4333 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4334 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4335 struct ieee80211_key_conf *key) 4336 { 4337 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4338 int ret; 4339 4340 mutex_lock(&mvm->mutex); 4341 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4342 mutex_unlock(&mvm->mutex); 4343 4344 return ret; 4345 } 4346 4347 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4348 struct ieee80211_vif *vif, 4349 struct ieee80211_key_conf *keyconf, 4350 struct ieee80211_sta *sta, 4351 u32 iv32, u16 *phase1key) 4352 { 4353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4354 4355 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4356 return; 4357 4358 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4359 } 4360 4361 4362 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4363 struct iwl_rx_packet *pkt, void *data) 4364 { 4365 struct iwl_mvm *mvm = 4366 container_of(notif_wait, struct iwl_mvm, notif_wait); 4367 struct iwl_hs20_roc_res *resp; 4368 int resp_len = iwl_rx_packet_payload_len(pkt); 4369 struct iwl_mvm_time_event_data *te_data = data; 4370 4371 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4372 return true; 4373 4374 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4375 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4376 return true; 4377 } 4378 4379 resp = (void *)pkt->data; 4380 4381 IWL_DEBUG_TE(mvm, 4382 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4383 resp->status, resp->event_unique_id); 4384 4385 te_data->uid = le32_to_cpu(resp->event_unique_id); 4386 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4387 te_data->uid); 4388 4389 spin_lock_bh(&mvm->time_event_lock); 4390 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4391 spin_unlock_bh(&mvm->time_event_lock); 4392 4393 return true; 4394 } 4395 4396 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4397 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4398 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4399 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4400 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4401 4402 static void iwl_mvm_roc_duration_and_delay(struct ieee80211_vif *vif, 4403 u32 duration_ms, 4404 u32 *duration_tu, 4405 u32 *delay) 4406 { 4407 u32 dtim_interval = vif->bss_conf.dtim_period * 4408 vif->bss_conf.beacon_int; 4409 4410 *delay = AUX_ROC_MIN_DELAY; 4411 *duration_tu = MSEC_TO_TU(duration_ms); 4412 4413 /* 4414 * If we are associated we want the delay time to be at least one 4415 * dtim interval so that the FW can wait until after the DTIM and 4416 * then start the time event, this will potentially allow us to 4417 * remain off-channel for the max duration. 4418 * Since we want to use almost a whole dtim interval we would also 4419 * like the delay to be for 2-3 dtim intervals, in case there are 4420 * other time events with higher priority. 4421 */ 4422 if (vif->cfg.assoc) { 4423 *delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4424 /* We cannot remain off-channel longer than the DTIM interval */ 4425 if (dtim_interval <= *duration_tu) { 4426 *duration_tu = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4427 if (*duration_tu <= AUX_ROC_MIN_DURATION) 4428 *duration_tu = dtim_interval - 4429 AUX_ROC_MIN_SAFETY_BUFFER; 4430 } 4431 } 4432 } 4433 4434 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4435 struct ieee80211_channel *channel, 4436 struct ieee80211_vif *vif, 4437 int duration) 4438 { 4439 int res; 4440 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4441 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4442 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4443 struct iwl_notification_wait wait_time_event; 4444 u32 req_dur, delay; 4445 struct iwl_hs20_roc_req aux_roc_req = { 4446 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4447 .id_and_color = 4448 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4449 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4450 }; 4451 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4452 &aux_roc_req.channel_info); 4453 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4454 4455 /* Set the channel info data */ 4456 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4457 iwl_mvm_phy_band_from_nl80211(channel->band), 4458 IWL_PHY_CHANNEL_MODE20, 4459 0); 4460 4461 /* Set the time and duration */ 4462 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4463 4464 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4465 tail->duration = cpu_to_le32(req_dur); 4466 tail->apply_time_max_delay = cpu_to_le32(delay); 4467 4468 IWL_DEBUG_TE(mvm, 4469 "ROC: Requesting to remain on channel %u for %ums\n", 4470 channel->hw_value, req_dur); 4471 IWL_DEBUG_TE(mvm, 4472 "\t(requested = %ums, max_delay = %ums)\n", 4473 duration, delay); 4474 4475 /* Set the node address */ 4476 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4477 4478 lockdep_assert_held(&mvm->mutex); 4479 4480 spin_lock_bh(&mvm->time_event_lock); 4481 4482 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4483 spin_unlock_bh(&mvm->time_event_lock); 4484 return -EIO; 4485 } 4486 4487 te_data->vif = vif; 4488 te_data->duration = duration; 4489 te_data->id = HOT_SPOT_CMD; 4490 4491 spin_unlock_bh(&mvm->time_event_lock); 4492 4493 /* 4494 * Use a notification wait, which really just processes the 4495 * command response and doesn't wait for anything, in order 4496 * to be able to process the response and get the UID inside 4497 * the RX path. Using CMD_WANT_SKB doesn't work because it 4498 * stores the buffer and then wakes up this thread, by which 4499 * time another notification (that the time event started) 4500 * might already be processed unsuccessfully. 4501 */ 4502 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4503 time_event_response, 4504 ARRAY_SIZE(time_event_response), 4505 iwl_mvm_rx_aux_roc, te_data); 4506 4507 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4508 &aux_roc_req); 4509 4510 if (res) { 4511 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4512 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4513 goto out_clear_te; 4514 } 4515 4516 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4517 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4518 /* should never fail */ 4519 WARN_ON_ONCE(res); 4520 4521 if (res) { 4522 out_clear_te: 4523 spin_lock_bh(&mvm->time_event_lock); 4524 iwl_mvm_te_clear_data(mvm, te_data); 4525 spin_unlock_bh(&mvm->time_event_lock); 4526 } 4527 4528 return res; 4529 } 4530 4531 static int iwl_mvm_roc_add_cmd(struct iwl_mvm *mvm, 4532 struct ieee80211_channel *channel, 4533 struct ieee80211_vif *vif, 4534 int duration, u32 activity) 4535 { 4536 int res; 4537 u32 duration_tu, delay; 4538 struct iwl_roc_req roc_req = { 4539 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4540 .activity = cpu_to_le32(activity), 4541 .sta_id = cpu_to_le32(mvm->aux_sta.sta_id), 4542 }; 4543 4544 lockdep_assert_held(&mvm->mutex); 4545 4546 /* Set the channel info data */ 4547 iwl_mvm_set_chan_info(mvm, &roc_req.channel_info, 4548 channel->hw_value, 4549 iwl_mvm_phy_band_from_nl80211(channel->band), 4550 IWL_PHY_CHANNEL_MODE20, 0); 4551 4552 iwl_mvm_roc_duration_and_delay(vif, duration, &duration_tu, 4553 &delay); 4554 roc_req.duration = cpu_to_le32(duration_tu); 4555 roc_req.max_delay = cpu_to_le32(delay); 4556 4557 IWL_DEBUG_TE(mvm, 4558 "\t(requested = %ums, max_delay = %ums)\n", 4559 duration, delay); 4560 IWL_DEBUG_TE(mvm, 4561 "Requesting to remain on channel %u for %utu\n", 4562 channel->hw_value, duration_tu); 4563 4564 /* Set the node address */ 4565 memcpy(roc_req.node_addr, vif->addr, ETH_ALEN); 4566 4567 res = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, ROC_CMD), 4568 0, sizeof(roc_req), &roc_req); 4569 4570 return res; 4571 } 4572 4573 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4574 { 4575 int ret = 0; 4576 4577 lockdep_assert_held(&mvm->mutex); 4578 4579 if (!fw_has_capa(&mvm->fw->ucode_capa, 4580 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4581 IWL_ERR(mvm, "hotspot not supported\n"); 4582 return -EINVAL; 4583 } 4584 4585 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4586 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4587 WARN(ret, "Failed to allocate aux station"); 4588 } 4589 4590 return ret; 4591 } 4592 4593 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4594 { 4595 int ret; 4596 4597 lockdep_assert_held(&mvm->mutex); 4598 4599 ret = iwl_mvm_binding_add_vif(mvm, vif); 4600 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4601 return ret; 4602 4603 /* The station and queue allocation must be done only after the binding 4604 * is done, as otherwise the FW might incorrectly configure its state. 4605 */ 4606 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4607 } 4608 4609 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4610 struct ieee80211_vif *vif, 4611 struct ieee80211_channel *channel, 4612 int duration, 4613 enum ieee80211_roc_type type) 4614 { 4615 static const struct iwl_mvm_roc_ops ops = { 4616 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4617 .link = iwl_mvm_roc_link, 4618 }; 4619 4620 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4621 } 4622 4623 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4624 struct ieee80211_channel *channel, 4625 struct ieee80211_vif *vif, 4626 int duration) 4627 { 4628 int ret; 4629 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4630 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4631 IWL_FW_CMD_VER_UNKNOWN); 4632 4633 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4634 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4635 } else if (fw_ver == 3) { 4636 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4637 ROC_ACTIVITY_HOTSPOT); 4638 } else { 4639 ret = -EOPNOTSUPP; 4640 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4641 } 4642 4643 return ret; 4644 } 4645 4646 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4647 struct ieee80211_vif *vif, 4648 struct ieee80211_channel *channel) 4649 { 4650 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4651 struct cfg80211_chan_def chandef; 4652 int i; 4653 4654 lockdep_assert_held(&mvm->mutex); 4655 4656 if (mvmvif->deflink.phy_ctxt && 4657 channel == mvmvif->deflink.phy_ctxt->channel) 4658 return 0; 4659 4660 /* Try using a PHY context that is already in use */ 4661 for (i = 0; i < NUM_PHY_CTX; i++) { 4662 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4663 4664 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4665 continue; 4666 4667 if (channel == phy_ctxt->channel) { 4668 if (mvmvif->deflink.phy_ctxt) 4669 iwl_mvm_phy_ctxt_unref(mvm, 4670 mvmvif->deflink.phy_ctxt); 4671 4672 mvmvif->deflink.phy_ctxt = phy_ctxt; 4673 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4674 return 0; 4675 } 4676 } 4677 4678 /* We already have a phy_ctxt, but it's not on the right channel */ 4679 if (mvmvif->deflink.phy_ctxt) 4680 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4681 4682 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4683 if (!mvmvif->deflink.phy_ctxt) 4684 return -ENOSPC; 4685 4686 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4687 4688 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4689 &chandef, 1, 1); 4690 } 4691 4692 /* Execute the common part for MLD and non-MLD modes */ 4693 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4694 struct ieee80211_channel *channel, int duration, 4695 enum ieee80211_roc_type type, 4696 const struct iwl_mvm_roc_ops *ops) 4697 { 4698 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4699 u32 lmac_id; 4700 int ret; 4701 4702 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4703 duration, type); 4704 4705 /* 4706 * Flush the done work, just in case it's still pending, so that 4707 * the work it does can complete and we can accept new frames. 4708 */ 4709 flush_work(&mvm->roc_done_wk); 4710 4711 mutex_lock(&mvm->mutex); 4712 4713 switch (vif->type) { 4714 case NL80211_IFTYPE_STATION: 4715 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4716 4717 /* Use aux roc framework (HS20) */ 4718 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4719 if (!ret) 4720 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4721 goto out_unlock; 4722 case NL80211_IFTYPE_P2P_DEVICE: 4723 /* handle below */ 4724 break; 4725 default: 4726 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4727 ret = -EINVAL; 4728 goto out_unlock; 4729 } 4730 4731 4732 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4733 if (ret) 4734 goto out_unlock; 4735 4736 ret = ops->link(mvm, vif); 4737 if (ret) 4738 goto out_unlock; 4739 4740 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4741 out_unlock: 4742 mutex_unlock(&mvm->mutex); 4743 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4744 return ret; 4745 } 4746 4747 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4748 struct ieee80211_vif *vif) 4749 { 4750 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4751 4752 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4753 4754 mutex_lock(&mvm->mutex); 4755 iwl_mvm_stop_roc(mvm, vif); 4756 mutex_unlock(&mvm->mutex); 4757 4758 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4759 return 0; 4760 } 4761 4762 struct iwl_mvm_ftm_responder_iter_data { 4763 bool responder; 4764 struct ieee80211_chanctx_conf *ctx; 4765 }; 4766 4767 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4768 struct ieee80211_vif *vif) 4769 { 4770 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4771 4772 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4773 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4774 data->responder = true; 4775 } 4776 4777 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4778 struct ieee80211_chanctx_conf *ctx) 4779 { 4780 struct iwl_mvm_ftm_responder_iter_data data = { 4781 .responder = false, 4782 .ctx = ctx, 4783 }; 4784 4785 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4786 IEEE80211_IFACE_ITER_NORMAL, 4787 iwl_mvm_ftm_responder_chanctx_iter, 4788 &data); 4789 return data.responder; 4790 } 4791 4792 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4793 struct ieee80211_chanctx_conf *ctx) 4794 { 4795 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4796 struct iwl_mvm_phy_ctxt *phy_ctxt; 4797 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4798 iwl_mvm_enable_fils(mvm, ctx); 4799 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4800 int ret; 4801 4802 lockdep_assert_held(&mvm->mutex); 4803 4804 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4805 4806 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4807 if (!phy_ctxt) { 4808 ret = -ENOSPC; 4809 goto out; 4810 } 4811 4812 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, 4813 ctx->rx_chains_static, 4814 ctx->rx_chains_dynamic); 4815 if (ret) { 4816 IWL_ERR(mvm, "Failed to add PHY context\n"); 4817 goto out; 4818 } 4819 4820 *phy_ctxt_id = phy_ctxt->id; 4821 out: 4822 return ret; 4823 } 4824 4825 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4826 struct ieee80211_chanctx_conf *ctx) 4827 { 4828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4829 int ret; 4830 4831 mutex_lock(&mvm->mutex); 4832 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4833 mutex_unlock(&mvm->mutex); 4834 4835 return ret; 4836 } 4837 4838 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4839 struct ieee80211_chanctx_conf *ctx) 4840 { 4841 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4842 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4843 4844 lockdep_assert_held(&mvm->mutex); 4845 4846 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4847 } 4848 4849 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4850 struct ieee80211_chanctx_conf *ctx) 4851 { 4852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4853 4854 mutex_lock(&mvm->mutex); 4855 __iwl_mvm_remove_chanctx(mvm, ctx); 4856 mutex_unlock(&mvm->mutex); 4857 } 4858 4859 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4860 struct ieee80211_chanctx_conf *ctx, u32 changed) 4861 { 4862 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4863 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4864 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4865 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4866 iwl_mvm_enable_fils(mvm, ctx); 4867 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4868 4869 if (WARN_ONCE((phy_ctxt->ref > 1) && 4870 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4871 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4872 IEEE80211_CHANCTX_CHANGE_RADAR | 4873 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4874 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4875 phy_ctxt->ref, changed)) 4876 return; 4877 4878 mutex_lock(&mvm->mutex); 4879 4880 /* we are only changing the min_width, may be a noop */ 4881 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4882 if (phy_ctxt->width == def->width) 4883 goto out_unlock; 4884 4885 /* we are just toggling between 20_NOHT and 20 */ 4886 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4887 def->width <= NL80211_CHAN_WIDTH_20) 4888 goto out_unlock; 4889 } 4890 4891 iwl_mvm_bt_coex_vif_change(mvm); 4892 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4893 ctx->rx_chains_static, 4894 ctx->rx_chains_dynamic); 4895 4896 out_unlock: 4897 mutex_unlock(&mvm->mutex); 4898 } 4899 4900 /* 4901 * This function executes the common part for MLD and non-MLD modes. 4902 * 4903 * Returns true if we're done assigning the chanctx 4904 * (either on failure or success) 4905 */ 4906 static bool 4907 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4908 struct ieee80211_vif *vif, 4909 struct ieee80211_chanctx_conf *ctx, 4910 bool switching_chanctx, int *ret) 4911 { 4912 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4913 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4914 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4915 4916 lockdep_assert_held(&mvm->mutex); 4917 4918 mvmvif->deflink.phy_ctxt = phy_ctxt; 4919 4920 switch (vif->type) { 4921 case NL80211_IFTYPE_AP: 4922 /* only needed if we're switching chanctx (i.e. during CSA) */ 4923 if (switching_chanctx) { 4924 mvmvif->ap_ibss_active = true; 4925 break; 4926 } 4927 fallthrough; 4928 case NL80211_IFTYPE_ADHOC: 4929 /* 4930 * The AP binding flow is handled as part of the start_ap flow 4931 * (in bss_info_changed), similarly for IBSS. 4932 */ 4933 *ret = 0; 4934 return true; 4935 case NL80211_IFTYPE_STATION: 4936 break; 4937 case NL80211_IFTYPE_MONITOR: 4938 /* always disable PS when a monitor interface is active */ 4939 mvmvif->ps_disabled = true; 4940 break; 4941 default: 4942 *ret = -EINVAL; 4943 return true; 4944 } 4945 return false; 4946 } 4947 4948 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4949 struct ieee80211_vif *vif, 4950 struct ieee80211_bss_conf *link_conf, 4951 struct ieee80211_chanctx_conf *ctx, 4952 bool switching_chanctx) 4953 { 4954 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4955 int ret; 4956 4957 if (WARN_ON(!link_conf)) 4958 return -EINVAL; 4959 4960 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4961 switching_chanctx, &ret)) 4962 goto out; 4963 4964 ret = iwl_mvm_binding_add_vif(mvm, vif); 4965 if (ret) 4966 goto out; 4967 4968 /* 4969 * Power state must be updated before quotas, 4970 * otherwise fw will complain. 4971 */ 4972 iwl_mvm_power_update_mac(mvm); 4973 4974 /* Setting the quota at this stage is only required for monitor 4975 * interfaces. For the other types, the bss_info changed flow 4976 * will handle quota settings. 4977 */ 4978 if (vif->type == NL80211_IFTYPE_MONITOR) { 4979 mvmvif->monitor_active = true; 4980 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4981 if (ret) 4982 goto out_remove_binding; 4983 4984 ret = iwl_mvm_add_snif_sta(mvm, vif); 4985 if (ret) 4986 goto out_remove_binding; 4987 4988 } 4989 4990 /* Handle binding during CSA */ 4991 if (vif->type == NL80211_IFTYPE_AP) { 4992 iwl_mvm_update_quotas(mvm, false, NULL); 4993 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4994 } 4995 4996 if (vif->type == NL80211_IFTYPE_STATION) { 4997 if (!switching_chanctx) { 4998 mvmvif->csa_bcn_pending = false; 4999 goto out; 5000 } 5001 5002 mvmvif->csa_bcn_pending = true; 5003 5004 if (!fw_has_capa(&mvm->fw->ucode_capa, 5005 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5006 u32 duration = 5 * vif->bss_conf.beacon_int; 5007 5008 /* Protect the session to make sure we hear the first 5009 * beacon on the new channel. 5010 */ 5011 iwl_mvm_protect_session(mvm, vif, duration, duration, 5012 vif->bss_conf.beacon_int / 2, 5013 true); 5014 } 5015 5016 iwl_mvm_update_quotas(mvm, false, NULL); 5017 } 5018 5019 goto out; 5020 5021 out_remove_binding: 5022 iwl_mvm_binding_remove_vif(mvm, vif); 5023 iwl_mvm_power_update_mac(mvm); 5024 out: 5025 if (ret) 5026 mvmvif->deflink.phy_ctxt = NULL; 5027 return ret; 5028 } 5029 5030 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5031 struct ieee80211_vif *vif, 5032 struct ieee80211_bss_conf *link_conf, 5033 struct ieee80211_chanctx_conf *ctx) 5034 { 5035 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5036 int ret; 5037 5038 mutex_lock(&mvm->mutex); 5039 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5040 mutex_unlock(&mvm->mutex); 5041 5042 return ret; 5043 } 5044 5045 /* 5046 * This function executes the common part for MLD and non-MLD modes. 5047 * 5048 * Returns if chanctx unassign chanctx is done 5049 * (either on failure or success) 5050 */ 5051 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5052 struct ieee80211_vif *vif, 5053 bool switching_chanctx) 5054 { 5055 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5056 5057 lockdep_assert_held(&mvm->mutex); 5058 iwl_mvm_remove_time_event(mvm, mvmvif, 5059 &mvmvif->time_event_data); 5060 5061 switch (vif->type) { 5062 case NL80211_IFTYPE_ADHOC: 5063 return true; 5064 case NL80211_IFTYPE_MONITOR: 5065 mvmvif->monitor_active = false; 5066 mvmvif->ps_disabled = false; 5067 break; 5068 case NL80211_IFTYPE_AP: 5069 /* This part is triggered only during CSA */ 5070 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5071 return true; 5072 5073 mvmvif->csa_countdown = false; 5074 5075 /* Set CS bit on all the stations */ 5076 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5077 5078 /* Save blocked iface, the timeout is set on the next beacon */ 5079 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5080 5081 mvmvif->ap_ibss_active = false; 5082 break; 5083 default: 5084 break; 5085 } 5086 return false; 5087 } 5088 5089 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5090 struct ieee80211_vif *vif, 5091 struct ieee80211_bss_conf *link_conf, 5092 struct ieee80211_chanctx_conf *ctx, 5093 bool switching_chanctx) 5094 { 5095 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5096 struct ieee80211_vif *disabled_vif = NULL; 5097 5098 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5099 goto out; 5100 5101 if (vif->type == NL80211_IFTYPE_MONITOR) 5102 iwl_mvm_rm_snif_sta(mvm, vif); 5103 5104 5105 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5106 disabled_vif = vif; 5107 if (!fw_has_capa(&mvm->fw->ucode_capa, 5108 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5109 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5110 } 5111 5112 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5113 iwl_mvm_binding_remove_vif(mvm, vif); 5114 5115 out: 5116 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5117 switching_chanctx) 5118 return; 5119 mvmvif->deflink.phy_ctxt = NULL; 5120 iwl_mvm_power_update_mac(mvm); 5121 } 5122 5123 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5124 struct ieee80211_vif *vif, 5125 struct ieee80211_bss_conf *link_conf, 5126 struct ieee80211_chanctx_conf *ctx) 5127 { 5128 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5129 5130 mutex_lock(&mvm->mutex); 5131 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5132 mutex_unlock(&mvm->mutex); 5133 } 5134 5135 static int 5136 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5137 struct ieee80211_vif_chanctx_switch *vifs, 5138 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5139 { 5140 int ret; 5141 5142 mutex_lock(&mvm->mutex); 5143 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5144 vifs[0].old_ctx, true); 5145 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5146 5147 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5148 if (ret) { 5149 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5150 goto out_reassign; 5151 } 5152 5153 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5154 vifs[0].new_ctx, true); 5155 if (ret) { 5156 IWL_ERR(mvm, 5157 "failed to assign new_ctx during channel switch\n"); 5158 goto out_remove; 5159 } 5160 5161 /* we don't support TDLS during DCM - can be caused by channel switch */ 5162 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5163 iwl_mvm_teardown_tdls_peers(mvm); 5164 5165 goto out; 5166 5167 out_remove: 5168 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5169 5170 out_reassign: 5171 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5172 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5173 goto out_restart; 5174 } 5175 5176 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5177 vifs[0].old_ctx, true)) { 5178 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5179 goto out_restart; 5180 } 5181 5182 goto out; 5183 5184 out_restart: 5185 /* things keep failing, better restart the hw */ 5186 iwl_mvm_nic_restart(mvm, false); 5187 5188 out: 5189 mutex_unlock(&mvm->mutex); 5190 5191 return ret; 5192 } 5193 5194 static int 5195 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5196 struct ieee80211_vif_chanctx_switch *vifs, 5197 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5198 { 5199 int ret; 5200 5201 mutex_lock(&mvm->mutex); 5202 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5203 vifs[0].old_ctx, true); 5204 5205 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5206 vifs[0].new_ctx, true); 5207 if (ret) { 5208 IWL_ERR(mvm, 5209 "failed to assign new_ctx during channel switch\n"); 5210 goto out_reassign; 5211 } 5212 5213 goto out; 5214 5215 out_reassign: 5216 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5217 vifs[0].old_ctx, true)) { 5218 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5219 goto out_restart; 5220 } 5221 5222 goto out; 5223 5224 out_restart: 5225 /* things keep failing, better restart the hw */ 5226 iwl_mvm_nic_restart(mvm, false); 5227 5228 out: 5229 mutex_unlock(&mvm->mutex); 5230 5231 return ret; 5232 } 5233 5234 /* Execute the common part for both MLD and non-MLD modes */ 5235 int 5236 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5237 struct ieee80211_vif_chanctx_switch *vifs, 5238 int n_vifs, 5239 enum ieee80211_chanctx_switch_mode mode, 5240 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5241 { 5242 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5243 int ret; 5244 5245 /* we only support a single-vif right now */ 5246 if (n_vifs > 1) 5247 return -EOPNOTSUPP; 5248 5249 switch (mode) { 5250 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5251 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5252 break; 5253 case CHANCTX_SWMODE_REASSIGN_VIF: 5254 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5255 break; 5256 default: 5257 ret = -EOPNOTSUPP; 5258 break; 5259 } 5260 5261 return ret; 5262 } 5263 5264 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5265 struct ieee80211_vif_chanctx_switch *vifs, 5266 int n_vifs, 5267 enum ieee80211_chanctx_switch_mode mode) 5268 { 5269 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5270 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5271 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5272 }; 5273 5274 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5275 } 5276 5277 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5278 { 5279 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5280 5281 return mvm->ibss_manager; 5282 } 5283 5284 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5285 bool set) 5286 { 5287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5288 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5289 5290 if (!mvm_sta || !mvm_sta->vif) { 5291 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5292 return -EINVAL; 5293 } 5294 5295 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5296 &mvm_sta->vif->bss_conf); 5297 } 5298 5299 #ifdef CONFIG_NL80211_TESTMODE 5300 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5301 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5302 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5303 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5304 }; 5305 5306 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5307 struct ieee80211_vif *vif, 5308 void *data, int len) 5309 { 5310 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5311 int err; 5312 u32 noa_duration; 5313 5314 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5315 iwl_mvm_tm_policy, NULL); 5316 if (err) 5317 return err; 5318 5319 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5320 return -EINVAL; 5321 5322 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5323 case IWL_MVM_TM_CMD_SET_NOA: 5324 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5325 !vif->bss_conf.enable_beacon || 5326 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5327 return -EINVAL; 5328 5329 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5330 if (noa_duration >= vif->bss_conf.beacon_int) 5331 return -EINVAL; 5332 5333 mvm->noa_duration = noa_duration; 5334 mvm->noa_vif = vif; 5335 5336 return iwl_mvm_update_quotas(mvm, true, NULL); 5337 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5338 /* must be associated client vif - ignore authorized */ 5339 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5340 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5341 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5342 return -EINVAL; 5343 5344 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5345 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5346 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5347 } 5348 5349 return -EOPNOTSUPP; 5350 } 5351 5352 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5353 struct ieee80211_vif *vif, 5354 void *data, int len) 5355 { 5356 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5357 int err; 5358 5359 mutex_lock(&mvm->mutex); 5360 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5361 mutex_unlock(&mvm->mutex); 5362 5363 return err; 5364 } 5365 #endif 5366 5367 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5368 struct ieee80211_channel_switch *chsw) 5369 { 5370 /* By implementing this operation, we prevent mac80211 from 5371 * starting its own channel switch timer, so that we can call 5372 * ieee80211_chswitch_done() ourselves at the right time 5373 * (which is when the absence time event starts). 5374 */ 5375 5376 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5377 "dummy channel switch op\n"); 5378 } 5379 5380 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5381 struct ieee80211_vif *vif, 5382 struct ieee80211_channel_switch *chsw) 5383 { 5384 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5385 struct iwl_chan_switch_te_cmd cmd = { 5386 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5387 mvmvif->color)), 5388 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5389 .tsf = cpu_to_le32(chsw->timestamp), 5390 .cs_count = chsw->count, 5391 .cs_mode = chsw->block_tx, 5392 }; 5393 5394 lockdep_assert_held(&mvm->mutex); 5395 5396 if (chsw->delay) 5397 cmd.cs_delayed_bcn_count = 5398 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5399 5400 return iwl_mvm_send_cmd_pdu(mvm, 5401 WIDE_ID(MAC_CONF_GROUP, 5402 CHANNEL_SWITCH_TIME_EVENT_CMD), 5403 0, sizeof(cmd), &cmd); 5404 } 5405 5406 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5407 struct ieee80211_vif *vif, 5408 struct ieee80211_channel_switch *chsw) 5409 { 5410 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5411 u32 apply_time; 5412 5413 /* Schedule the time event to a bit before beacon 1, 5414 * to make sure we're in the new channel when the 5415 * GO/AP arrives. In case count <= 1 immediately schedule the 5416 * TE (this might result with some packet loss or connection 5417 * loss). 5418 */ 5419 if (chsw->count <= 1) 5420 apply_time = 0; 5421 else 5422 apply_time = chsw->device_timestamp + 5423 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5424 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5425 5426 if (chsw->block_tx) 5427 iwl_mvm_csa_client_absent(mvm, vif); 5428 5429 if (mvmvif->bf_data.bf_enabled) { 5430 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5431 5432 if (ret) 5433 return ret; 5434 } 5435 5436 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5437 apply_time); 5438 5439 return 0; 5440 } 5441 5442 #define IWL_MAX_CSA_BLOCK_TX 1500 5443 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5444 struct ieee80211_vif *vif, 5445 struct ieee80211_channel_switch *chsw) 5446 { 5447 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5448 struct ieee80211_vif *csa_vif; 5449 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5450 int ret; 5451 5452 mutex_lock(&mvm->mutex); 5453 5454 mvmvif->csa_failed = false; 5455 5456 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5457 chsw->chandef.center_freq1); 5458 5459 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5460 ieee80211_vif_to_wdev(vif), 5461 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5462 5463 switch (vif->type) { 5464 case NL80211_IFTYPE_AP: 5465 csa_vif = 5466 rcu_dereference_protected(mvm->csa_vif, 5467 lockdep_is_held(&mvm->mutex)); 5468 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5469 "Another CSA is already in progress")) { 5470 ret = -EBUSY; 5471 goto out_unlock; 5472 } 5473 5474 /* we still didn't unblock tx. prevent new CS meanwhile */ 5475 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5476 lockdep_is_held(&mvm->mutex))) { 5477 ret = -EBUSY; 5478 goto out_unlock; 5479 } 5480 5481 rcu_assign_pointer(mvm->csa_vif, vif); 5482 5483 if (WARN_ONCE(mvmvif->csa_countdown, 5484 "Previous CSA countdown didn't complete")) { 5485 ret = -EBUSY; 5486 goto out_unlock; 5487 } 5488 5489 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5490 5491 break; 5492 case NL80211_IFTYPE_STATION: 5493 /* 5494 * In the new flow FW is in charge of timing the switch so there 5495 * is no need for all of this 5496 */ 5497 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5498 CHANNEL_SWITCH_ERROR_NOTIF, 5499 0)) 5500 break; 5501 5502 /* 5503 * We haven't configured the firmware to be associated yet since 5504 * we don't know the dtim period. In this case, the firmware can't 5505 * track the beacons. 5506 */ 5507 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5508 ret = -EBUSY; 5509 goto out_unlock; 5510 } 5511 5512 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5513 hweight16(vif->valid_links) <= 1) 5514 schedule_delayed_work(&mvmvif->csa_work, 0); 5515 5516 if (chsw->block_tx) { 5517 /* 5518 * In case of undetermined / long time with immediate 5519 * quiet monitor status to gracefully disconnect 5520 */ 5521 if (!chsw->count || 5522 chsw->count * vif->bss_conf.beacon_int > 5523 IWL_MAX_CSA_BLOCK_TX) 5524 schedule_delayed_work(&mvmvif->csa_work, 5525 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5526 } 5527 5528 if (!fw_has_capa(&mvm->fw->ucode_capa, 5529 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5530 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5531 if (ret) 5532 goto out_unlock; 5533 } else { 5534 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5535 } 5536 5537 mvmvif->csa_count = chsw->count; 5538 mvmvif->csa_misbehave = false; 5539 break; 5540 default: 5541 break; 5542 } 5543 5544 mvmvif->ps_disabled = true; 5545 5546 ret = iwl_mvm_power_update_ps(mvm); 5547 if (ret) 5548 goto out_unlock; 5549 5550 /* we won't be on this channel any longer */ 5551 iwl_mvm_teardown_tdls_peers(mvm); 5552 5553 out_unlock: 5554 mutex_unlock(&mvm->mutex); 5555 5556 return ret; 5557 } 5558 5559 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5560 struct ieee80211_vif *vif, 5561 struct ieee80211_channel_switch *chsw) 5562 { 5563 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5564 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5565 struct iwl_chan_switch_te_cmd cmd = { 5566 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5567 mvmvif->color)), 5568 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5569 .tsf = cpu_to_le32(chsw->timestamp), 5570 .cs_count = chsw->count, 5571 .cs_mode = chsw->block_tx, 5572 }; 5573 5574 /* 5575 * In the new flow FW is in charge of timing the switch so there is no 5576 * need for all of this 5577 */ 5578 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5579 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5580 return; 5581 5582 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5583 return; 5584 5585 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5586 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5587 5588 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5589 if (mvmvif->csa_misbehave) { 5590 /* Second time, give up on this AP*/ 5591 iwl_mvm_abort_channel_switch(hw, vif); 5592 ieee80211_chswitch_done(vif, false, 0); 5593 mvmvif->csa_misbehave = false; 5594 return; 5595 } 5596 mvmvif->csa_misbehave = true; 5597 } 5598 mvmvif->csa_count = chsw->count; 5599 5600 mutex_lock(&mvm->mutex); 5601 if (mvmvif->csa_failed) 5602 goto out_unlock; 5603 5604 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5605 WIDE_ID(MAC_CONF_GROUP, 5606 CHANNEL_SWITCH_TIME_EVENT_CMD), 5607 0, sizeof(cmd), &cmd)); 5608 out_unlock: 5609 mutex_unlock(&mvm->mutex); 5610 } 5611 5612 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5613 { 5614 int i; 5615 5616 if (!iwl_mvm_has_new_tx_api(mvm)) { 5617 if (drop) { 5618 mutex_lock(&mvm->mutex); 5619 iwl_mvm_flush_tx_path(mvm, 5620 iwl_mvm_flushable_queues(mvm) & queues); 5621 mutex_unlock(&mvm->mutex); 5622 } else { 5623 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5624 } 5625 return; 5626 } 5627 5628 mutex_lock(&mvm->mutex); 5629 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5630 struct ieee80211_sta *sta; 5631 5632 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5633 lockdep_is_held(&mvm->mutex)); 5634 if (IS_ERR_OR_NULL(sta)) 5635 continue; 5636 5637 if (drop) 5638 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5639 else 5640 iwl_mvm_wait_sta_queues_empty(mvm, 5641 iwl_mvm_sta_from_mac80211(sta)); 5642 } 5643 mutex_unlock(&mvm->mutex); 5644 } 5645 5646 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5647 u32 queues, bool drop) 5648 { 5649 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5650 struct iwl_mvm_vif *mvmvif; 5651 struct iwl_mvm_sta *mvmsta; 5652 struct ieee80211_sta *sta; 5653 bool ap_sta_done = false; 5654 int i; 5655 u32 msk = 0; 5656 5657 if (!vif) { 5658 iwl_mvm_flush_no_vif(mvm, queues, drop); 5659 return; 5660 } 5661 5662 /* Make sure we're done with the deferred traffic before flushing */ 5663 flush_work(&mvm->add_stream_wk); 5664 5665 mutex_lock(&mvm->mutex); 5666 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5667 5668 /* flush the AP-station and all TDLS peers */ 5669 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5670 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5671 lockdep_is_held(&mvm->mutex)); 5672 if (IS_ERR_OR_NULL(sta)) 5673 continue; 5674 5675 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5676 if (mvmsta->vif != vif) 5677 continue; 5678 5679 if (sta == mvmvif->ap_sta) { 5680 if (ap_sta_done) 5681 continue; 5682 ap_sta_done = true; 5683 } 5684 5685 if (drop) { 5686 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5687 mvmsta->tfd_queue_msk)) 5688 IWL_ERR(mvm, "flush request fail\n"); 5689 } else { 5690 if (iwl_mvm_has_new_tx_api(mvm)) 5691 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5692 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5693 msk |= mvmsta->tfd_queue_msk; 5694 } 5695 } 5696 5697 mutex_unlock(&mvm->mutex); 5698 5699 /* this can take a while, and we may need/want other operations 5700 * to succeed while doing this, so do it without the mutex held 5701 */ 5702 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5703 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5704 } 5705 5706 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5707 struct ieee80211_sta *sta) 5708 { 5709 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5710 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5711 struct iwl_mvm_link_sta *mvm_link_sta; 5712 struct ieee80211_link_sta *link_sta; 5713 int link_id; 5714 5715 mutex_lock(&mvm->mutex); 5716 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5717 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5718 lockdep_is_held(&mvm->mutex)); 5719 if (!mvm_link_sta) 5720 continue; 5721 5722 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5723 mvmsta->tfd_queue_msk)) 5724 IWL_ERR(mvm, "flush request fail\n"); 5725 } 5726 mutex_unlock(&mvm->mutex); 5727 } 5728 5729 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5730 struct survey_info *survey) 5731 { 5732 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5733 int ret = 0; 5734 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5735 WIDE_ID(SYSTEM_GROUP, 5736 SYSTEM_STATISTICS_CMD), 5737 IWL_FW_CMD_VER_UNKNOWN); 5738 5739 memset(survey, 0, sizeof(*survey)); 5740 5741 /* only support global statistics right now */ 5742 if (idx != 0) 5743 return -ENOENT; 5744 5745 if (!fw_has_capa(&mvm->fw->ucode_capa, 5746 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5747 return -ENOENT; 5748 5749 mutex_lock(&mvm->mutex); 5750 5751 if (iwl_mvm_firmware_running(mvm)) { 5752 ret = iwl_mvm_request_statistics(mvm, false); 5753 if (ret) 5754 goto out; 5755 } 5756 5757 survey->filled = SURVEY_INFO_TIME_RX | 5758 SURVEY_INFO_TIME_TX; 5759 5760 survey->time_rx = mvm->accu_radio_stats.rx_time + 5761 mvm->radio_stats.rx_time; 5762 do_div(survey->time_rx, USEC_PER_MSEC); 5763 5764 survey->time_tx = mvm->accu_radio_stats.tx_time + 5765 mvm->radio_stats.tx_time; 5766 do_div(survey->time_tx, USEC_PER_MSEC); 5767 5768 /* the new fw api doesn't support the following fields */ 5769 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 5770 goto out; 5771 5772 survey->filled |= SURVEY_INFO_TIME | 5773 SURVEY_INFO_TIME_SCAN; 5774 survey->time = mvm->accu_radio_stats.on_time_rf + 5775 mvm->radio_stats.on_time_rf; 5776 do_div(survey->time, USEC_PER_MSEC); 5777 5778 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5779 mvm->radio_stats.on_time_scan; 5780 do_div(survey->time_scan, USEC_PER_MSEC); 5781 5782 out: 5783 mutex_unlock(&mvm->mutex); 5784 return ret; 5785 } 5786 5787 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5788 { 5789 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5790 u32 gi_ltf; 5791 5792 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5793 case RATE_MCS_CHAN_WIDTH_20: 5794 rinfo->bw = RATE_INFO_BW_20; 5795 break; 5796 case RATE_MCS_CHAN_WIDTH_40: 5797 rinfo->bw = RATE_INFO_BW_40; 5798 break; 5799 case RATE_MCS_CHAN_WIDTH_80: 5800 rinfo->bw = RATE_INFO_BW_80; 5801 break; 5802 case RATE_MCS_CHAN_WIDTH_160: 5803 rinfo->bw = RATE_INFO_BW_160; 5804 break; 5805 case RATE_MCS_CHAN_WIDTH_320: 5806 rinfo->bw = RATE_INFO_BW_320; 5807 break; 5808 } 5809 5810 if (format == RATE_MCS_CCK_MSK || 5811 format == RATE_MCS_LEGACY_OFDM_MSK) { 5812 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5813 5814 /* add the offset needed to get to the legacy ofdm indices */ 5815 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5816 rate += IWL_FIRST_OFDM_RATE; 5817 5818 switch (rate) { 5819 case IWL_RATE_1M_INDEX: 5820 rinfo->legacy = 10; 5821 break; 5822 case IWL_RATE_2M_INDEX: 5823 rinfo->legacy = 20; 5824 break; 5825 case IWL_RATE_5M_INDEX: 5826 rinfo->legacy = 55; 5827 break; 5828 case IWL_RATE_11M_INDEX: 5829 rinfo->legacy = 110; 5830 break; 5831 case IWL_RATE_6M_INDEX: 5832 rinfo->legacy = 60; 5833 break; 5834 case IWL_RATE_9M_INDEX: 5835 rinfo->legacy = 90; 5836 break; 5837 case IWL_RATE_12M_INDEX: 5838 rinfo->legacy = 120; 5839 break; 5840 case IWL_RATE_18M_INDEX: 5841 rinfo->legacy = 180; 5842 break; 5843 case IWL_RATE_24M_INDEX: 5844 rinfo->legacy = 240; 5845 break; 5846 case IWL_RATE_36M_INDEX: 5847 rinfo->legacy = 360; 5848 break; 5849 case IWL_RATE_48M_INDEX: 5850 rinfo->legacy = 480; 5851 break; 5852 case IWL_RATE_54M_INDEX: 5853 rinfo->legacy = 540; 5854 } 5855 return; 5856 } 5857 5858 rinfo->nss = u32_get_bits(rate_n_flags, 5859 RATE_MCS_NSS_MSK) + 1; 5860 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5861 RATE_HT_MCS_INDEX(rate_n_flags) : 5862 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5863 5864 if (rate_n_flags & RATE_MCS_SGI_MSK) 5865 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5866 5867 switch (format) { 5868 case RATE_MCS_EHT_MSK: 5869 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5870 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5871 break; 5872 case RATE_MCS_HE_MSK: 5873 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5874 5875 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5876 5877 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5878 rinfo->bw = RATE_INFO_BW_HE_RU; 5879 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5880 } 5881 5882 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5883 case RATE_MCS_HE_TYPE_SU: 5884 case RATE_MCS_HE_TYPE_EXT_SU: 5885 if (gi_ltf == 0 || gi_ltf == 1) 5886 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5887 else if (gi_ltf == 2) 5888 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5889 else if (gi_ltf == 3) 5890 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5891 else 5892 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5893 break; 5894 case RATE_MCS_HE_TYPE_MU: 5895 if (gi_ltf == 0 || gi_ltf == 1) 5896 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5897 else if (gi_ltf == 2) 5898 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5899 else 5900 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5901 break; 5902 case RATE_MCS_HE_TYPE_TRIG: 5903 if (gi_ltf == 0 || gi_ltf == 1) 5904 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5905 else 5906 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5907 break; 5908 } 5909 5910 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5911 rinfo->he_dcm = 1; 5912 break; 5913 case RATE_MCS_HT_MSK: 5914 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5915 break; 5916 case RATE_MCS_VHT_MSK: 5917 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5918 break; 5919 } 5920 } 5921 5922 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5923 struct ieee80211_vif *vif, 5924 struct ieee80211_sta *sta, 5925 struct station_info *sinfo) 5926 { 5927 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5928 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5929 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5930 int i; 5931 5932 if (mvmsta->deflink.avg_energy) { 5933 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5934 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5935 } 5936 5937 if (iwl_mvm_has_tlc_offload(mvm)) { 5938 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5939 5940 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5941 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5942 } 5943 5944 /* if beacon filtering isn't on mac80211 does it anyway */ 5945 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5946 return; 5947 5948 if (!vif->cfg.assoc) 5949 return; 5950 5951 mutex_lock(&mvm->mutex); 5952 5953 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5954 goto unlock; 5955 5956 if (iwl_mvm_request_statistics(mvm, false)) 5957 goto unlock; 5958 5959 sinfo->rx_beacon = 0; 5960 for_each_mvm_vif_valid_link(mvmvif, i) 5961 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 5962 mvmvif->link[i]->beacon_stats.accu_num_beacons; 5963 5964 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5965 if (mvmvif->deflink.beacon_stats.avg_signal) { 5966 /* firmware only reports a value after RXing a few beacons */ 5967 sinfo->rx_beacon_signal_avg = 5968 mvmvif->deflink.beacon_stats.avg_signal; 5969 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5970 } 5971 unlock: 5972 mutex_unlock(&mvm->mutex); 5973 } 5974 5975 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5976 struct ieee80211_vif *vif, 5977 const struct ieee80211_mlme_event *mlme) 5978 { 5979 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5980 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5981 iwl_dbg_tlv_time_point(&mvm->fwrt, 5982 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5983 NULL); 5984 return; 5985 } 5986 5987 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5988 iwl_dbg_tlv_time_point(&mvm->fwrt, 5989 IWL_FW_INI_TIME_POINT_DEASSOC, 5990 NULL); 5991 return; 5992 } 5993 } 5994 5995 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5996 struct ieee80211_vif *vif, 5997 const struct ieee80211_event *event) 5998 { 5999 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6000 do { \ 6001 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6002 break; \ 6003 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6004 } while (0) 6005 6006 struct iwl_fw_dbg_trigger_tlv *trig; 6007 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6008 6009 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6010 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6011 return; 6012 } 6013 6014 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6015 FW_DBG_TRIGGER_MLME); 6016 if (!trig) 6017 return; 6018 6019 trig_mlme = (void *)trig->data; 6020 6021 if (event->u.mlme.data == ASSOC_EVENT) { 6022 if (event->u.mlme.status == MLME_DENIED) 6023 CHECK_MLME_TRIGGER(stop_assoc_denied, 6024 "DENIED ASSOC: reason %d", 6025 event->u.mlme.reason); 6026 else if (event->u.mlme.status == MLME_TIMEOUT) 6027 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6028 "ASSOC TIMEOUT"); 6029 } else if (event->u.mlme.data == AUTH_EVENT) { 6030 if (event->u.mlme.status == MLME_DENIED) 6031 CHECK_MLME_TRIGGER(stop_auth_denied, 6032 "DENIED AUTH: reason %d", 6033 event->u.mlme.reason); 6034 else if (event->u.mlme.status == MLME_TIMEOUT) 6035 CHECK_MLME_TRIGGER(stop_auth_timeout, 6036 "AUTH TIMEOUT"); 6037 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6038 CHECK_MLME_TRIGGER(stop_rx_deauth, 6039 "DEAUTH RX %d", event->u.mlme.reason); 6040 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6041 CHECK_MLME_TRIGGER(stop_tx_deauth, 6042 "DEAUTH TX %d", event->u.mlme.reason); 6043 } 6044 #undef CHECK_MLME_TRIGGER 6045 } 6046 6047 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6048 struct ieee80211_vif *vif, 6049 const struct ieee80211_event *event) 6050 { 6051 struct iwl_fw_dbg_trigger_tlv *trig; 6052 struct iwl_fw_dbg_trigger_ba *ba_trig; 6053 6054 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6055 FW_DBG_TRIGGER_BA); 6056 if (!trig) 6057 return; 6058 6059 ba_trig = (void *)trig->data; 6060 6061 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6062 return; 6063 6064 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6065 "BAR received from %pM, tid %d, ssn %d", 6066 event->u.ba.sta->addr, event->u.ba.tid, 6067 event->u.ba.ssn); 6068 } 6069 6070 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6071 struct ieee80211_vif *vif, 6072 const struct ieee80211_event *event) 6073 { 6074 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6075 6076 switch (event->type) { 6077 case MLME_EVENT: 6078 iwl_mvm_event_mlme_callback(mvm, vif, event); 6079 break; 6080 case BAR_RX_EVENT: 6081 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6082 break; 6083 case BA_FRAME_TIMEOUT: 6084 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6085 event->u.ba.tid); 6086 break; 6087 default: 6088 break; 6089 } 6090 } 6091 6092 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6093 enum iwl_mvm_rxq_notif_type type, 6094 bool sync, 6095 const void *data, u32 size) 6096 { 6097 struct { 6098 struct iwl_rxq_sync_cmd cmd; 6099 struct iwl_mvm_internal_rxq_notif notif; 6100 } __packed cmd = { 6101 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6102 .cmd.count = 6103 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6104 size), 6105 .notif.type = type, 6106 .notif.sync = sync, 6107 }; 6108 struct iwl_host_cmd hcmd = { 6109 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6110 .data[0] = &cmd, 6111 .len[0] = sizeof(cmd), 6112 .data[1] = data, 6113 .len[1] = size, 6114 .flags = sync ? 0 : CMD_ASYNC, 6115 }; 6116 int ret; 6117 6118 /* size must be a multiple of DWORD */ 6119 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6120 return; 6121 6122 if (!iwl_mvm_has_new_rx_api(mvm)) 6123 return; 6124 6125 if (sync) { 6126 cmd.notif.cookie = mvm->queue_sync_cookie; 6127 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6128 } 6129 6130 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6131 if (ret) { 6132 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6133 goto out; 6134 } 6135 6136 if (sync) { 6137 lockdep_assert_held(&mvm->mutex); 6138 ret = wait_event_timeout(mvm->rx_sync_waitq, 6139 READ_ONCE(mvm->queue_sync_state) == 0 || 6140 iwl_mvm_is_radio_killed(mvm), 6141 HZ); 6142 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6143 "queue sync: failed to sync, state is 0x%lx\n", 6144 mvm->queue_sync_state); 6145 } 6146 6147 out: 6148 if (sync) { 6149 mvm->queue_sync_state = 0; 6150 mvm->queue_sync_cookie++; 6151 } 6152 } 6153 6154 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6155 { 6156 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6157 6158 mutex_lock(&mvm->mutex); 6159 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6160 mutex_unlock(&mvm->mutex); 6161 } 6162 6163 int 6164 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6165 struct ieee80211_vif *vif, 6166 struct cfg80211_ftm_responder_stats *stats) 6167 { 6168 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6169 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6170 6171 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6172 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6173 return -EINVAL; 6174 6175 mutex_lock(&mvm->mutex); 6176 *stats = mvm->ftm_resp_stats; 6177 mutex_unlock(&mvm->mutex); 6178 6179 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6180 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6181 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6182 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6183 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6184 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6185 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6186 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6187 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6188 6189 return 0; 6190 } 6191 6192 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6193 struct cfg80211_pmsr_request *request) 6194 { 6195 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6196 int ret; 6197 6198 mutex_lock(&mvm->mutex); 6199 ret = iwl_mvm_ftm_start(mvm, vif, request); 6200 mutex_unlock(&mvm->mutex); 6201 6202 return ret; 6203 } 6204 6205 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6206 struct cfg80211_pmsr_request *request) 6207 { 6208 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6209 6210 mutex_lock(&mvm->mutex); 6211 iwl_mvm_ftm_abort(mvm, request); 6212 mutex_unlock(&mvm->mutex); 6213 } 6214 6215 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6216 { 6217 u8 protocol = ip_hdr(skb)->protocol; 6218 6219 if (!IS_ENABLED(CONFIG_INET)) 6220 return false; 6221 6222 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6223 } 6224 6225 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6226 struct sk_buff *head, 6227 struct sk_buff *skb) 6228 { 6229 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6230 6231 /* For now don't aggregate IPv6 in AMSDU */ 6232 if (skb->protocol != htons(ETH_P_IP)) 6233 return false; 6234 6235 if (!iwl_mvm_is_csum_supported(mvm)) 6236 return true; 6237 6238 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6239 } 6240 6241 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6242 struct ieee80211_vif *vif, 6243 struct cfg80211_set_hw_timestamp *hwts) 6244 { 6245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6246 u32 protocols = 0; 6247 int ret; 6248 6249 /* HW timestamping is only supported for a specific station */ 6250 if (!hwts->macaddr) 6251 return -EOPNOTSUPP; 6252 6253 if (hwts->enable) 6254 protocols = 6255 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6256 6257 mutex_lock(&mvm->mutex); 6258 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6259 mutex_unlock(&mvm->mutex); 6260 6261 return ret; 6262 } 6263 6264 const struct ieee80211_ops iwl_mvm_hw_ops = { 6265 .tx = iwl_mvm_mac_tx, 6266 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6267 .ampdu_action = iwl_mvm_mac_ampdu_action, 6268 .get_antenna = iwl_mvm_op_get_antenna, 6269 .set_antenna = iwl_mvm_op_set_antenna, 6270 .start = iwl_mvm_mac_start, 6271 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6272 .stop = iwl_mvm_mac_stop, 6273 .add_interface = iwl_mvm_mac_add_interface, 6274 .remove_interface = iwl_mvm_mac_remove_interface, 6275 .config = iwl_mvm_mac_config, 6276 .prepare_multicast = iwl_mvm_prepare_multicast, 6277 .configure_filter = iwl_mvm_configure_filter, 6278 .config_iface_filter = iwl_mvm_config_iface_filter, 6279 .bss_info_changed = iwl_mvm_bss_info_changed, 6280 .hw_scan = iwl_mvm_mac_hw_scan, 6281 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6282 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6283 .sta_state = iwl_mvm_mac_sta_state, 6284 .sta_notify = iwl_mvm_mac_sta_notify, 6285 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6286 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6287 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6288 .sta_rc_update = iwl_mvm_sta_rc_update, 6289 .conf_tx = iwl_mvm_mac_conf_tx, 6290 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6291 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6292 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6293 .flush = iwl_mvm_mac_flush, 6294 .flush_sta = iwl_mvm_mac_flush_sta, 6295 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6296 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6297 .set_key = iwl_mvm_mac_set_key, 6298 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6299 .remain_on_channel = iwl_mvm_roc, 6300 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6301 .add_chanctx = iwl_mvm_add_chanctx, 6302 .remove_chanctx = iwl_mvm_remove_chanctx, 6303 .change_chanctx = iwl_mvm_change_chanctx, 6304 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6305 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6306 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6307 6308 .start_ap = iwl_mvm_start_ap, 6309 .stop_ap = iwl_mvm_stop_ap, 6310 .join_ibss = iwl_mvm_start_ibss, 6311 .leave_ibss = iwl_mvm_stop_ibss, 6312 6313 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6314 6315 .set_tim = iwl_mvm_set_tim, 6316 6317 .channel_switch = iwl_mvm_channel_switch, 6318 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6319 .post_channel_switch = iwl_mvm_post_channel_switch, 6320 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6321 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6322 6323 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6324 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6325 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6326 6327 .event_callback = iwl_mvm_mac_event_callback, 6328 6329 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6330 6331 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6332 6333 #ifdef CONFIG_PM_SLEEP 6334 /* look at d3.c */ 6335 .suspend = iwl_mvm_suspend, 6336 .resume = iwl_mvm_resume, 6337 .set_wakeup = iwl_mvm_set_wakeup, 6338 .set_rekey_data = iwl_mvm_set_rekey_data, 6339 #if IS_ENABLED(CONFIG_IPV6) 6340 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6341 #endif 6342 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6343 #endif 6344 .get_survey = iwl_mvm_mac_get_survey, 6345 .sta_statistics = iwl_mvm_mac_sta_statistics, 6346 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6347 .start_pmsr = iwl_mvm_start_pmsr, 6348 .abort_pmsr = iwl_mvm_abort_pmsr, 6349 6350 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6351 #ifdef CONFIG_IWLWIFI_DEBUGFS 6352 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6353 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6354 #endif 6355 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6356 }; 6357