1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2022 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 32 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 33 { 34 .max = 1, 35 .types = BIT(NL80211_IFTYPE_STATION), 36 }, 37 { 38 .max = 1, 39 .types = BIT(NL80211_IFTYPE_AP) | 40 BIT(NL80211_IFTYPE_P2P_CLIENT) | 41 BIT(NL80211_IFTYPE_P2P_GO), 42 }, 43 { 44 .max = 1, 45 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 46 }, 47 }; 48 49 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 50 { 51 .num_different_channels = 2, 52 .max_interfaces = 3, 53 .limits = iwl_mvm_limits, 54 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 55 }, 56 }; 57 58 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 59 .max_peers = IWL_MVM_TOF_MAX_APS, 60 .report_ap_tsf = 1, 61 .randomize_mac_addr = 1, 62 63 .ftm = { 64 .supported = 1, 65 .asap = 1, 66 .non_asap = 1, 67 .request_lci = 1, 68 .request_civicloc = 1, 69 .trigger_based = 1, 70 .non_trigger_based = 1, 71 .max_bursts_exponent = -1, /* all supported */ 72 .max_ftms_per_burst = 0, /* no limits */ 73 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 74 BIT(NL80211_CHAN_WIDTH_20) | 75 BIT(NL80211_CHAN_WIDTH_40) | 76 BIT(NL80211_CHAN_WIDTH_80) | 77 BIT(NL80211_CHAN_WIDTH_160), 78 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 79 BIT(NL80211_PREAMBLE_HT) | 80 BIT(NL80211_PREAMBLE_VHT) | 81 BIT(NL80211_PREAMBLE_HE), 82 }, 83 }; 84 85 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 86 enum set_key_cmd cmd, 87 struct ieee80211_vif *vif, 88 struct ieee80211_sta *sta, 89 struct ieee80211_key_conf *key); 90 91 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 92 { 93 int i; 94 95 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 96 for (i = 0; i < NUM_PHY_CTX; i++) { 97 mvm->phy_ctxts[i].id = i; 98 mvm->phy_ctxts[i].ref = 0; 99 } 100 } 101 102 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 103 const char *alpha2, 104 enum iwl_mcc_source src_id, 105 bool *changed) 106 { 107 struct ieee80211_regdomain *regd = NULL; 108 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 109 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 110 struct iwl_mcc_update_resp *resp; 111 u8 resp_ver; 112 113 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 114 115 lockdep_assert_held(&mvm->mutex); 116 117 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 118 if (IS_ERR_OR_NULL(resp)) { 119 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 120 PTR_ERR_OR_ZERO(resp)); 121 resp = NULL; 122 goto out; 123 } 124 125 if (changed) { 126 u32 status = le32_to_cpu(resp->status); 127 128 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 129 status == MCC_RESP_ILLEGAL); 130 } 131 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 132 MCC_UPDATE_CMD, 0); 133 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 134 135 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 136 __le32_to_cpu(resp->n_channels), 137 resp->channels, 138 __le16_to_cpu(resp->mcc), 139 __le16_to_cpu(resp->geo_info), 140 __le16_to_cpu(resp->cap), resp_ver); 141 /* Store the return source id */ 142 src_id = resp->source_id; 143 if (IS_ERR_OR_NULL(regd)) { 144 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 145 PTR_ERR_OR_ZERO(regd)); 146 goto out; 147 } 148 149 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 150 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 151 mvm->lar_regdom_set = true; 152 mvm->mcc_src = src_id; 153 154 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 155 156 out: 157 kfree(resp); 158 return regd; 159 } 160 161 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 162 { 163 bool changed; 164 struct ieee80211_regdomain *regd; 165 166 if (!iwl_mvm_is_lar_supported(mvm)) 167 return; 168 169 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 170 if (!IS_ERR_OR_NULL(regd)) { 171 /* only update the regulatory core if changed */ 172 if (changed) 173 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 174 175 kfree(regd); 176 } 177 } 178 179 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 180 bool *changed) 181 { 182 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 183 iwl_mvm_is_wifi_mcc_supported(mvm) ? 184 MCC_SOURCE_GET_CURRENT : 185 MCC_SOURCE_OLD_FW, changed); 186 } 187 188 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 189 { 190 enum iwl_mcc_source used_src; 191 struct ieee80211_regdomain *regd; 192 int ret; 193 bool changed; 194 const struct ieee80211_regdomain *r = 195 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 196 197 if (!r) 198 return -ENOENT; 199 200 /* save the last source in case we overwrite it below */ 201 used_src = mvm->mcc_src; 202 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 203 /* Notify the firmware we support wifi location updates */ 204 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 205 if (!IS_ERR_OR_NULL(regd)) 206 kfree(regd); 207 } 208 209 /* Now set our last stored MCC and source */ 210 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 211 &changed); 212 if (IS_ERR_OR_NULL(regd)) 213 return -EIO; 214 215 /* update cfg80211 if the regdomain was changed */ 216 if (changed) 217 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 218 else 219 ret = 0; 220 221 kfree(regd); 222 return ret; 223 } 224 225 static const u8 he_if_types_ext_capa_sta[] = { 226 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 227 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 228 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 229 }; 230 231 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 232 { 233 .iftype = NL80211_IFTYPE_STATION, 234 .extended_capabilities = he_if_types_ext_capa_sta, 235 .extended_capabilities_mask = he_if_types_ext_capa_sta, 236 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 237 }, 238 }; 239 240 static int 241 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 242 { 243 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 244 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 245 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 246 return 0; 247 } 248 249 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 250 { 251 struct ieee80211_hw *hw = mvm->hw; 252 int num_mac, ret, i; 253 static const u32 mvm_ciphers[] = { 254 WLAN_CIPHER_SUITE_WEP40, 255 WLAN_CIPHER_SUITE_WEP104, 256 WLAN_CIPHER_SUITE_TKIP, 257 WLAN_CIPHER_SUITE_CCMP, 258 }; 259 #ifdef CONFIG_PM_SLEEP 260 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 261 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 262 #endif 263 264 /* Tell mac80211 our characteristics */ 265 ieee80211_hw_set(hw, SIGNAL_DBM); 266 ieee80211_hw_set(hw, SPECTRUM_MGMT); 267 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 268 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 269 ieee80211_hw_set(hw, SUPPORTS_PS); 270 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 271 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 272 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 273 ieee80211_hw_set(hw, CONNECTION_MONITOR); 274 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 275 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 276 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 277 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 278 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 279 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 280 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 281 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 282 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 283 /* 284 * On older devices, enabling TX A-MSDU occasionally leads to 285 * something getting messed up, the command read from the FIFO 286 * gets out of sync and isn't a TX command, so that we have an 287 * assert EDC. 288 * 289 * It's not clear where the bug is, but since we didn't used to 290 * support A-MSDU until moving the mac80211 iTXQs, just leave it 291 * for older devices. We also don't see this issue on any newer 292 * devices. 293 */ 294 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 295 ieee80211_hw_set(hw, TX_AMSDU); 296 ieee80211_hw_set(hw, TX_FRAG_LIST); 297 298 if (iwl_mvm_has_tlc_offload(mvm)) { 299 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 300 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 301 } 302 303 if (iwl_mvm_has_new_rx_api(mvm)) 304 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 305 306 if (fw_has_capa(&mvm->fw->ucode_capa, 307 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 308 ieee80211_hw_set(hw, AP_LINK_PS); 309 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 310 /* 311 * we absolutely need this for the new TX API since that comes 312 * with many more queues than the current code can deal with 313 * for station powersave 314 */ 315 return -EINVAL; 316 } 317 318 if (mvm->trans->num_rx_queues > 1) 319 ieee80211_hw_set(hw, USES_RSS); 320 321 if (mvm->trans->max_skb_frags) 322 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 323 324 hw->queues = IEEE80211_NUM_ACS; 325 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 326 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 327 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 328 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 329 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 330 331 hw->radiotap_timestamp.units_pos = 332 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 333 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 334 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 335 hw->radiotap_timestamp.accuracy = 22; 336 337 if (!iwl_mvm_has_tlc_offload(mvm)) 338 hw->rate_control_algorithm = RS_NAME; 339 340 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 341 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 342 hw->max_tx_fragments = mvm->trans->max_skb_frags; 343 344 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 345 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 346 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 347 hw->wiphy->cipher_suites = mvm->ciphers; 348 349 if (iwl_mvm_has_new_rx_api(mvm)) { 350 mvm->ciphers[hw->wiphy->n_cipher_suites] = 351 WLAN_CIPHER_SUITE_GCMP; 352 hw->wiphy->n_cipher_suites++; 353 mvm->ciphers[hw->wiphy->n_cipher_suites] = 354 WLAN_CIPHER_SUITE_GCMP_256; 355 hw->wiphy->n_cipher_suites++; 356 } 357 358 if (iwlwifi_mod_params.swcrypto) 359 IWL_ERR(mvm, 360 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 361 if (!iwlwifi_mod_params.bt_coex_active) 362 IWL_ERR(mvm, 363 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 364 365 ieee80211_hw_set(hw, MFP_CAPABLE); 366 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 367 hw->wiphy->n_cipher_suites++; 368 if (iwl_mvm_has_new_rx_api(mvm)) { 369 mvm->ciphers[hw->wiphy->n_cipher_suites] = 370 WLAN_CIPHER_SUITE_BIP_GMAC_128; 371 hw->wiphy->n_cipher_suites++; 372 mvm->ciphers[hw->wiphy->n_cipher_suites] = 373 WLAN_CIPHER_SUITE_BIP_GMAC_256; 374 hw->wiphy->n_cipher_suites++; 375 } 376 377 wiphy_ext_feature_set(hw->wiphy, 378 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 379 380 if (fw_has_capa(&mvm->fw->ucode_capa, 381 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 382 wiphy_ext_feature_set(hw->wiphy, 383 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 384 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 385 } 386 387 if (fw_has_capa(&mvm->fw->ucode_capa, 388 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 389 wiphy_ext_feature_set(hw->wiphy, 390 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 391 392 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 393 hw->wiphy->features |= 394 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 395 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 396 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 397 398 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 399 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 400 hw->chanctx_data_size = sizeof(u16); 401 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 402 403 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 404 BIT(NL80211_IFTYPE_P2P_CLIENT) | 405 BIT(NL80211_IFTYPE_AP) | 406 BIT(NL80211_IFTYPE_P2P_GO) | 407 BIT(NL80211_IFTYPE_P2P_DEVICE) | 408 BIT(NL80211_IFTYPE_ADHOC); 409 410 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 411 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 412 413 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 414 * the hw, preventing us to control which key(id) to use per MPDU. 415 * Till that's fixed we can't use Extended Key ID for the newer cards. 416 */ 417 if (!iwl_mvm_has_new_tx_api(mvm)) 418 wiphy_ext_feature_set(hw->wiphy, 419 NL80211_EXT_FEATURE_EXT_KEY_ID); 420 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 421 422 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 423 if (iwl_mvm_is_lar_supported(mvm)) 424 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 425 else 426 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 427 REGULATORY_DISABLE_BEACON_HINTS; 428 429 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 430 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 431 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 432 433 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 434 hw->wiphy->n_iface_combinations = 435 ARRAY_SIZE(iwl_mvm_iface_combinations); 436 437 hw->wiphy->max_remain_on_channel_duration = 10000; 438 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 439 440 /* Extract MAC address */ 441 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 442 hw->wiphy->addresses = mvm->addresses; 443 hw->wiphy->n_addresses = 1; 444 445 /* Extract additional MAC addresses if available */ 446 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 447 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 448 449 for (i = 1; i < num_mac; i++) { 450 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 451 ETH_ALEN); 452 mvm->addresses[i].addr[5]++; 453 hw->wiphy->n_addresses++; 454 } 455 456 iwl_mvm_reset_phy_ctxts(mvm); 457 458 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 459 460 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 461 462 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 463 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 464 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 465 466 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 467 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 468 else 469 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 470 471 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 472 hw->wiphy->bands[NL80211_BAND_2GHZ] = 473 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 474 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 475 hw->wiphy->bands[NL80211_BAND_5GHZ] = 476 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 477 478 if (fw_has_capa(&mvm->fw->ucode_capa, 479 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 480 fw_has_api(&mvm->fw->ucode_capa, 481 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 482 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 483 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 484 } 485 if (fw_has_capa(&mvm->fw->ucode_capa, 486 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 487 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 488 hw->wiphy->bands[NL80211_BAND_6GHZ] = 489 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 490 491 hw->wiphy->hw_version = mvm->trans->hw_id; 492 493 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 494 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 495 else 496 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 497 498 hw->wiphy->max_sched_scan_reqs = 1; 499 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 500 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 501 /* we create the 802.11 header and zero length SSID IE. */ 502 hw->wiphy->max_sched_scan_ie_len = 503 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 504 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 505 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 506 507 /* 508 * the firmware uses u8 for num of iterations, but 0xff is saved for 509 * infinite loop, so the maximum number of iterations is actually 254. 510 */ 511 hw->wiphy->max_sched_scan_plan_iterations = 254; 512 513 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 514 NL80211_FEATURE_LOW_PRIORITY_SCAN | 515 NL80211_FEATURE_P2P_GO_OPPPS | 516 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 517 NL80211_FEATURE_DYNAMIC_SMPS | 518 NL80211_FEATURE_STATIC_SMPS | 519 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 520 521 if (fw_has_capa(&mvm->fw->ucode_capa, 522 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 523 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 524 if (fw_has_capa(&mvm->fw->ucode_capa, 525 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 526 hw->wiphy->features |= NL80211_FEATURE_QUIET; 527 528 if (fw_has_capa(&mvm->fw->ucode_capa, 529 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 530 hw->wiphy->features |= 531 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 532 533 if (fw_has_capa(&mvm->fw->ucode_capa, 534 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 535 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 536 537 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 538 IWL_FW_CMD_VER_UNKNOWN) == 3) 539 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 540 541 if (fw_has_api(&mvm->fw->ucode_capa, 542 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 543 wiphy_ext_feature_set(hw->wiphy, 544 NL80211_EXT_FEATURE_SCAN_START_TIME); 545 wiphy_ext_feature_set(hw->wiphy, 546 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 547 } 548 549 if (iwl_mvm_is_oce_supported(mvm)) { 550 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 551 552 wiphy_ext_feature_set(hw->wiphy, 553 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 554 wiphy_ext_feature_set(hw->wiphy, 555 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 556 wiphy_ext_feature_set(hw->wiphy, 557 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 558 559 /* Old firmware also supports probe deferral and suppression */ 560 if (scan_ver < 15) 561 wiphy_ext_feature_set(hw->wiphy, 562 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 563 } 564 565 if (mvm->nvm_data->sku_cap_11ax_enable && 566 !iwlwifi_mod_params.disable_11ax) { 567 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 568 hw->wiphy->num_iftype_ext_capab = 569 ARRAY_SIZE(he_iftypes_ext_capa); 570 571 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 572 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 573 } 574 575 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 576 577 #ifdef CONFIG_PM_SLEEP 578 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 579 mvm->trans->ops->d3_suspend && 580 mvm->trans->ops->d3_resume && 581 device_can_wakeup(mvm->trans->dev)) { 582 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 583 WIPHY_WOWLAN_DISCONNECT | 584 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 585 WIPHY_WOWLAN_RFKILL_RELEASE | 586 WIPHY_WOWLAN_NET_DETECT; 587 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 588 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 589 WIPHY_WOWLAN_4WAY_HANDSHAKE; 590 591 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 592 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 593 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 594 mvm->wowlan.max_nd_match_sets = 595 iwl_umac_scan_get_max_profiles(mvm->fw); 596 hw->wiphy->wowlan = &mvm->wowlan; 597 } 598 #endif 599 600 ret = iwl_mvm_leds_init(mvm); 601 if (ret) 602 return ret; 603 604 if (fw_has_capa(&mvm->fw->ucode_capa, 605 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 606 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 607 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 608 ieee80211_hw_set(hw, TDLS_WIDER_BW); 609 } 610 611 if (fw_has_capa(&mvm->fw->ucode_capa, 612 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 613 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 614 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 615 } 616 617 hw->netdev_features |= mvm->cfg->features; 618 if (!iwl_mvm_is_csum_supported(mvm)) 619 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 620 621 if (mvm->cfg->vht_mu_mimo_supported) 622 wiphy_ext_feature_set(hw->wiphy, 623 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 624 625 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 626 wiphy_ext_feature_set(hw->wiphy, 627 NL80211_EXT_FEATURE_PROTECTED_TWT); 628 629 iwl_mvm_vendor_cmds_register(mvm); 630 631 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 632 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 633 634 ret = ieee80211_register_hw(mvm->hw); 635 if (ret) { 636 iwl_mvm_leds_exit(mvm); 637 } 638 639 return ret; 640 } 641 642 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 643 struct ieee80211_sta *sta) 644 { 645 if (likely(sta)) { 646 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 647 return; 648 } else { 649 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 650 return; 651 } 652 653 ieee80211_free_txskb(mvm->hw, skb); 654 } 655 656 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 657 struct ieee80211_tx_control *control, 658 struct sk_buff *skb) 659 { 660 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 661 struct ieee80211_sta *sta = control->sta; 662 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 663 struct ieee80211_hdr *hdr = (void *)skb->data; 664 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 665 IEEE80211_TX_CTL_TX_OFFCHAN; 666 667 if (iwl_mvm_is_radio_killed(mvm)) { 668 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 669 goto drop; 670 } 671 672 if (offchannel && 673 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 674 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 675 goto drop; 676 677 /* 678 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 679 * so we treat the others as broadcast 680 */ 681 if (ieee80211_is_mgmt(hdr->frame_control)) 682 sta = NULL; 683 684 /* If there is no sta, and it's not offchannel - send through AP */ 685 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 686 !offchannel) { 687 struct iwl_mvm_vif *mvmvif = 688 iwl_mvm_vif_from_mac80211(info->control.vif); 689 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 690 691 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 692 /* mac80211 holds rcu read lock */ 693 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 694 if (IS_ERR_OR_NULL(sta)) 695 goto drop; 696 } 697 } 698 699 iwl_mvm_tx_skb(mvm, skb, sta); 700 return; 701 drop: 702 ieee80211_free_txskb(hw, skb); 703 } 704 705 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 706 { 707 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 708 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 709 struct sk_buff *skb = NULL; 710 711 /* 712 * No need for threads to be pending here, they can leave the first 713 * taker all the work. 714 * 715 * mvmtxq->tx_request logic: 716 * 717 * If 0, no one is currently TXing, set to 1 to indicate current thread 718 * will now start TX and other threads should quit. 719 * 720 * If 1, another thread is currently TXing, set to 2 to indicate to 721 * that thread that there was another request. Since that request may 722 * have raced with the check whether the queue is empty, the TXing 723 * thread should check the queue's status one more time before leaving. 724 * This check is done in order to not leave any TX hanging in the queue 725 * until the next TX invocation (which may not even happen). 726 * 727 * If 2, another thread is currently TXing, and it will already double 728 * check the queue, so do nothing. 729 */ 730 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 731 return; 732 733 rcu_read_lock(); 734 do { 735 while (likely(!mvmtxq->stopped && 736 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 737 skb = ieee80211_tx_dequeue(hw, txq); 738 739 if (!skb) { 740 if (txq->sta) 741 IWL_DEBUG_TX(mvm, 742 "TXQ of sta %pM tid %d is now empty\n", 743 txq->sta->addr, 744 txq->tid); 745 break; 746 } 747 748 iwl_mvm_tx_skb(mvm, skb, txq->sta); 749 } 750 } while (atomic_dec_return(&mvmtxq->tx_request)); 751 rcu_read_unlock(); 752 } 753 754 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 755 struct ieee80211_txq *txq) 756 { 757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 758 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 759 760 /* 761 * Please note that racing is handled very carefully here: 762 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 763 * deleted afterwards. 764 * This means that if: 765 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 766 * queue is allocated and we can TX. 767 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 768 * a race, should defer the frame. 769 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 770 * need to allocate the queue and defer the frame. 771 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 772 * queue is already scheduled for allocation, no need to allocate, 773 * should defer the frame. 774 */ 775 776 /* If the queue is allocated TX and return. */ 777 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 778 /* 779 * Check that list is empty to avoid a race where txq_id is 780 * already updated, but the queue allocation work wasn't 781 * finished 782 */ 783 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 784 return; 785 786 iwl_mvm_mac_itxq_xmit(hw, txq); 787 return; 788 } 789 790 /* The list is being deleted only after the queue is fully allocated. */ 791 if (!list_empty(&mvmtxq->list)) 792 return; 793 794 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 795 schedule_work(&mvm->add_stream_wk); 796 } 797 798 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 799 do { \ 800 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 801 break; \ 802 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 803 } while (0) 804 805 static void 806 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 807 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 808 enum ieee80211_ampdu_mlme_action action) 809 { 810 struct iwl_fw_dbg_trigger_tlv *trig; 811 struct iwl_fw_dbg_trigger_ba *ba_trig; 812 813 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 814 FW_DBG_TRIGGER_BA); 815 if (!trig) 816 return; 817 818 ba_trig = (void *)trig->data; 819 820 switch (action) { 821 case IEEE80211_AMPDU_TX_OPERATIONAL: { 822 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 823 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 824 825 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 826 "TX AGG START: MAC %pM tid %d ssn %d\n", 827 sta->addr, tid, tid_data->ssn); 828 break; 829 } 830 case IEEE80211_AMPDU_TX_STOP_CONT: 831 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 832 "TX AGG STOP: MAC %pM tid %d\n", 833 sta->addr, tid); 834 break; 835 case IEEE80211_AMPDU_RX_START: 836 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 837 "RX AGG START: MAC %pM tid %d ssn %d\n", 838 sta->addr, tid, rx_ba_ssn); 839 break; 840 case IEEE80211_AMPDU_RX_STOP: 841 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 842 "RX AGG STOP: MAC %pM tid %d\n", 843 sta->addr, tid); 844 break; 845 default: 846 break; 847 } 848 } 849 850 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 851 struct ieee80211_vif *vif, 852 struct ieee80211_ampdu_params *params) 853 { 854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 855 int ret; 856 struct ieee80211_sta *sta = params->sta; 857 enum ieee80211_ampdu_mlme_action action = params->action; 858 u16 tid = params->tid; 859 u16 *ssn = ¶ms->ssn; 860 u16 buf_size = params->buf_size; 861 bool amsdu = params->amsdu; 862 u16 timeout = params->timeout; 863 864 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 865 sta->addr, tid, action); 866 867 if (!(mvm->nvm_data->sku_cap_11n_enable)) 868 return -EACCES; 869 870 mutex_lock(&mvm->mutex); 871 872 switch (action) { 873 case IEEE80211_AMPDU_RX_START: 874 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 875 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 876 struct iwl_mvm_vif *mvmvif; 877 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 878 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 879 880 mdata->opened_rx_ba_sessions = true; 881 mvmvif = iwl_mvm_vif_from_mac80211(vif); 882 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 883 } 884 if (!iwl_enable_rx_ampdu()) { 885 ret = -EINVAL; 886 break; 887 } 888 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 889 timeout); 890 break; 891 case IEEE80211_AMPDU_RX_STOP: 892 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 893 timeout); 894 break; 895 case IEEE80211_AMPDU_TX_START: 896 if (!iwl_enable_tx_ampdu()) { 897 ret = -EINVAL; 898 break; 899 } 900 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 901 break; 902 case IEEE80211_AMPDU_TX_STOP_CONT: 903 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 904 break; 905 case IEEE80211_AMPDU_TX_STOP_FLUSH: 906 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 907 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 908 break; 909 case IEEE80211_AMPDU_TX_OPERATIONAL: 910 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 911 buf_size, amsdu); 912 break; 913 default: 914 WARN_ON_ONCE(1); 915 ret = -EINVAL; 916 break; 917 } 918 919 if (!ret) { 920 u16 rx_ba_ssn = 0; 921 922 if (action == IEEE80211_AMPDU_RX_START) 923 rx_ba_ssn = *ssn; 924 925 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 926 rx_ba_ssn, action); 927 } 928 mutex_unlock(&mvm->mutex); 929 930 return ret; 931 } 932 933 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 934 struct ieee80211_vif *vif) 935 { 936 struct iwl_mvm *mvm = data; 937 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 938 939 mvmvif->uploaded = false; 940 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 941 942 spin_lock_bh(&mvm->time_event_lock); 943 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 944 spin_unlock_bh(&mvm->time_event_lock); 945 946 mvmvif->phy_ctxt = NULL; 947 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 948 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 949 } 950 951 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 952 { 953 iwl_mvm_stop_device(mvm); 954 955 mvm->cur_aid = 0; 956 957 mvm->scan_status = 0; 958 mvm->ps_disabled = false; 959 mvm->rfkill_safe_init_done = false; 960 961 /* just in case one was running */ 962 iwl_mvm_cleanup_roc_te(mvm); 963 ieee80211_remain_on_channel_expired(mvm->hw); 964 965 iwl_mvm_ftm_restart(mvm); 966 967 /* 968 * cleanup all interfaces, even inactive ones, as some might have 969 * gone down during the HW restart 970 */ 971 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 972 973 mvm->p2p_device_vif = NULL; 974 975 iwl_mvm_reset_phy_ctxts(mvm); 976 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 977 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 978 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 979 980 ieee80211_wake_queues(mvm->hw); 981 982 mvm->rx_ba_sessions = 0; 983 mvm->fwrt.dump.conf = FW_DBG_INVALID; 984 mvm->monitor_on = false; 985 986 /* keep statistics ticking */ 987 iwl_mvm_accu_radio_stats(mvm); 988 } 989 990 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 991 { 992 int ret; 993 994 lockdep_assert_held(&mvm->mutex); 995 996 ret = iwl_mvm_mei_get_ownership(mvm); 997 if (ret) 998 return ret; 999 1000 if (mvm->mei_nvm_data) { 1001 /* We got the NIC, we can now free the MEI NVM data */ 1002 kfree(mvm->mei_nvm_data); 1003 mvm->mei_nvm_data = NULL; 1004 1005 /* 1006 * We can't free the nvm_data we allocated based on the SAP 1007 * data because we registered to cfg80211 with the channels 1008 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1009 * just in order to be able free it later. 1010 * NULLify nvm_data so that we will read the NVM from the 1011 * firmware this time. 1012 */ 1013 mvm->temp_nvm_data = mvm->nvm_data; 1014 mvm->nvm_data = NULL; 1015 } 1016 1017 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1018 /* 1019 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1020 * so later code will - from now on - see that we're doing it. 1021 */ 1022 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1023 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1024 /* Clean up some internal and mac80211 state on restart */ 1025 iwl_mvm_restart_cleanup(mvm); 1026 } 1027 ret = iwl_mvm_up(mvm); 1028 1029 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1030 NULL); 1031 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1032 NULL); 1033 1034 mvm->last_reset_or_resume_time_jiffies = jiffies; 1035 1036 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1037 /* Something went wrong - we need to finish some cleanup 1038 * that normally iwl_mvm_mac_restart_complete() below 1039 * would do. 1040 */ 1041 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1042 } 1043 1044 return ret; 1045 } 1046 1047 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1048 { 1049 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1050 int ret; 1051 int retry, max_retry = 0; 1052 1053 mutex_lock(&mvm->mutex); 1054 1055 /* we are starting the mac not in error flow, and restart is enabled */ 1056 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1057 iwlwifi_mod_params.fw_restart) { 1058 max_retry = IWL_MAX_INIT_RETRY; 1059 /* 1060 * This will prevent mac80211 recovery flows to trigger during 1061 * init failures 1062 */ 1063 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1064 } 1065 1066 for (retry = 0; retry <= max_retry; retry++) { 1067 ret = __iwl_mvm_mac_start(mvm); 1068 if (!ret) 1069 break; 1070 1071 IWL_ERR(mvm, "mac start retry %d\n", retry); 1072 } 1073 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1074 1075 mutex_unlock(&mvm->mutex); 1076 1077 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1078 1079 return ret; 1080 } 1081 1082 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1083 { 1084 int ret; 1085 1086 mutex_lock(&mvm->mutex); 1087 1088 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1089 1090 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1091 if (ret) 1092 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1093 ret); 1094 1095 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1096 1097 /* 1098 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1099 * of packets the FW sent out, so we must reconnect. 1100 */ 1101 iwl_mvm_teardown_tdls_peers(mvm); 1102 1103 mutex_unlock(&mvm->mutex); 1104 } 1105 1106 static void 1107 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1108 enum ieee80211_reconfig_type reconfig_type) 1109 { 1110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1111 1112 switch (reconfig_type) { 1113 case IEEE80211_RECONFIG_TYPE_RESTART: 1114 iwl_mvm_restart_complete(mvm); 1115 break; 1116 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1117 break; 1118 } 1119 } 1120 1121 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1122 { 1123 lockdep_assert_held(&mvm->mutex); 1124 1125 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1126 1127 /* firmware counters are obviously reset now, but we shouldn't 1128 * partially track so also clear the fw_reset_accu counters. 1129 */ 1130 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1131 1132 /* async_handlers_wk is now blocked */ 1133 1134 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) < 12) 1135 iwl_mvm_rm_aux_sta(mvm); 1136 1137 iwl_mvm_stop_device(mvm); 1138 1139 iwl_mvm_async_handlers_purge(mvm); 1140 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1141 1142 /* 1143 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1144 * hw (as restart_complete() won't be called in this case) and mac80211 1145 * won't execute the restart. 1146 * But make sure to cleanup interfaces that have gone down before/during 1147 * HW restart was requested. 1148 */ 1149 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1150 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1151 &mvm->status)) 1152 ieee80211_iterate_interfaces(mvm->hw, 0, 1153 iwl_mvm_cleanup_iterator, mvm); 1154 1155 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1156 * make sure there's nothing left there and warn if any is found. 1157 */ 1158 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1159 int i; 1160 1161 for (i = 0; i < mvm->max_scans; i++) { 1162 if (WARN_ONCE(mvm->scan_uid_status[i], 1163 "UMAC scan UID %d status was not cleaned\n", 1164 i)) 1165 mvm->scan_uid_status[i] = 0; 1166 } 1167 } 1168 } 1169 1170 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1171 { 1172 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1173 1174 flush_work(&mvm->async_handlers_wk); 1175 flush_work(&mvm->add_stream_wk); 1176 1177 /* 1178 * Lock and clear the firmware running bit here already, so that 1179 * new commands coming in elsewhere, e.g. from debugfs, will not 1180 * be able to proceed. This is important here because one of those 1181 * debugfs files causes the firmware dump to be triggered, and if we 1182 * don't stop debugfs accesses before canceling that it could be 1183 * retriggered after we flush it but before we've cleared the bit. 1184 */ 1185 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1186 1187 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1188 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1189 1190 /* 1191 * The work item could be running or queued if the 1192 * ROC time event stops just as we get here. 1193 */ 1194 flush_work(&mvm->roc_done_wk); 1195 1196 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1197 1198 mutex_lock(&mvm->mutex); 1199 __iwl_mvm_mac_stop(mvm); 1200 mutex_unlock(&mvm->mutex); 1201 1202 /* 1203 * The worker might have been waiting for the mutex, let it run and 1204 * discover that its list is now empty. 1205 */ 1206 cancel_work_sync(&mvm->async_handlers_wk); 1207 } 1208 1209 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1210 { 1211 u16 i; 1212 1213 lockdep_assert_held(&mvm->mutex); 1214 1215 for (i = 0; i < NUM_PHY_CTX; i++) 1216 if (!mvm->phy_ctxts[i].ref) 1217 return &mvm->phy_ctxts[i]; 1218 1219 IWL_ERR(mvm, "No available PHY context\n"); 1220 return NULL; 1221 } 1222 1223 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1224 s16 tx_power) 1225 { 1226 u32 cmd_id = REDUCE_TX_POWER_CMD; 1227 int len; 1228 struct iwl_dev_tx_power_cmd cmd = { 1229 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1230 .common.mac_context_id = 1231 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1232 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1233 }; 1234 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1235 IWL_FW_CMD_VER_UNKNOWN); 1236 1237 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1238 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1239 1240 if (cmd_ver == 7) 1241 len = sizeof(cmd.v7); 1242 else if (cmd_ver == 6) 1243 len = sizeof(cmd.v6); 1244 else if (fw_has_api(&mvm->fw->ucode_capa, 1245 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1246 len = sizeof(cmd.v5); 1247 else if (fw_has_capa(&mvm->fw->ucode_capa, 1248 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1249 len = sizeof(cmd.v4); 1250 else 1251 len = sizeof(cmd.v3); 1252 1253 /* all structs have the same common part, add it */ 1254 len += sizeof(cmd.common); 1255 1256 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1257 } 1258 1259 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1260 struct ieee80211_vif *vif) 1261 { 1262 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1263 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1264 int ret; 1265 1266 mutex_lock(&mvm->mutex); 1267 1268 if (vif->type == NL80211_IFTYPE_STATION) { 1269 struct iwl_mvm_sta *mvmsta; 1270 1271 mvmvif->csa_bcn_pending = false; 1272 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1273 mvmvif->ap_sta_id); 1274 1275 if (WARN_ON(!mvmsta)) { 1276 ret = -EIO; 1277 goto out_unlock; 1278 } 1279 1280 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1281 1282 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1283 1284 if (!fw_has_capa(&mvm->fw->ucode_capa, 1285 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1286 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1287 if (ret) 1288 goto out_unlock; 1289 1290 iwl_mvm_stop_session_protection(mvm, vif); 1291 } 1292 } 1293 1294 mvmvif->ps_disabled = false; 1295 1296 ret = iwl_mvm_power_update_ps(mvm); 1297 1298 out_unlock: 1299 if (mvmvif->csa_failed) 1300 ret = -EIO; 1301 mutex_unlock(&mvm->mutex); 1302 1303 return ret; 1304 } 1305 1306 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1307 struct ieee80211_vif *vif) 1308 { 1309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1310 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1311 struct iwl_chan_switch_te_cmd cmd = { 1312 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1313 mvmvif->color)), 1314 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1315 }; 1316 1317 /* 1318 * In the new flow since FW is in charge of the timing, 1319 * if driver has canceled the channel switch he will receive the 1320 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1321 */ 1322 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1323 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1324 return; 1325 1326 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1327 1328 mutex_lock(&mvm->mutex); 1329 if (!fw_has_capa(&mvm->fw->ucode_capa, 1330 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1331 iwl_mvm_remove_csa_period(mvm, vif); 1332 else 1333 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1334 WIDE_ID(MAC_CONF_GROUP, 1335 CHANNEL_SWITCH_TIME_EVENT_CMD), 1336 0, sizeof(cmd), &cmd)); 1337 mvmvif->csa_failed = true; 1338 mutex_unlock(&mvm->mutex); 1339 1340 iwl_mvm_post_channel_switch(hw, vif); 1341 } 1342 1343 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1344 { 1345 struct iwl_mvm_vif *mvmvif; 1346 struct ieee80211_vif *vif; 1347 1348 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1349 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1350 1351 /* Trigger disconnect (should clear the CSA state) */ 1352 ieee80211_chswitch_done(vif, false); 1353 } 1354 1355 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1356 struct ieee80211_vif *vif) 1357 { 1358 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1359 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1360 int ret; 1361 1362 mvmvif->mvm = mvm; 1363 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1364 1365 /* 1366 * Not much to do here. The stack will not allow interface 1367 * types or combinations that we didn't advertise, so we 1368 * don't really have to check the types. 1369 */ 1370 1371 mutex_lock(&mvm->mutex); 1372 1373 /* make sure that beacon statistics don't go backwards with FW reset */ 1374 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1375 mvmvif->beacon_stats.accu_num_beacons += 1376 mvmvif->beacon_stats.num_beacons; 1377 1378 /* Allocate resources for the MAC context, and add it to the fw */ 1379 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1380 if (ret) 1381 goto out_unlock; 1382 1383 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1384 1385 /* 1386 * The AP binding flow can be done only after the beacon 1387 * template is configured (which happens only in the mac80211 1388 * start_ap() flow), and adding the broadcast station can happen 1389 * only after the binding. 1390 * In addition, since modifying the MAC before adding a bcast 1391 * station is not allowed by the FW, delay the adding of MAC context to 1392 * the point where we can also add the bcast station. 1393 * In short: there's not much we can do at this point, other than 1394 * allocating resources :) 1395 */ 1396 if (vif->type == NL80211_IFTYPE_AP || 1397 vif->type == NL80211_IFTYPE_ADHOC) { 1398 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1399 if (ret) { 1400 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1401 goto out_unlock; 1402 } 1403 1404 /* 1405 * Only queue for this station is the mcast queue, 1406 * which shouldn't be in TFD mask anyway 1407 */ 1408 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1409 0, vif->type, 1410 IWL_STA_MULTICAST); 1411 if (ret) 1412 goto out_unlock; 1413 1414 iwl_mvm_vif_dbgfs_register(mvm, vif); 1415 goto out_unlock; 1416 } 1417 1418 mvmvif->features |= hw->netdev_features; 1419 1420 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1421 if (ret) 1422 goto out_unlock; 1423 1424 ret = iwl_mvm_power_update_mac(mvm); 1425 if (ret) 1426 goto out_remove_mac; 1427 1428 /* beacon filtering */ 1429 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1430 if (ret) 1431 goto out_remove_mac; 1432 1433 if (!mvm->bf_allowed_vif && 1434 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1435 mvm->bf_allowed_vif = mvmvif; 1436 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1437 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1438 } 1439 1440 /* 1441 * P2P_DEVICE interface does not have a channel context assigned to it, 1442 * so a dedicated PHY context is allocated to it and the corresponding 1443 * MAC context is bound to it at this stage. 1444 */ 1445 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1446 1447 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1448 if (!mvmvif->phy_ctxt) { 1449 ret = -ENOSPC; 1450 goto out_free_bf; 1451 } 1452 1453 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1454 ret = iwl_mvm_binding_add_vif(mvm, vif); 1455 if (ret) 1456 goto out_unref_phy; 1457 1458 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1459 if (ret) 1460 goto out_unbind; 1461 1462 /* Save a pointer to p2p device vif, so it can later be used to 1463 * update the p2p device MAC when a GO is started/stopped */ 1464 mvm->p2p_device_vif = vif; 1465 } 1466 1467 iwl_mvm_tcm_add_vif(mvm, vif); 1468 INIT_DELAYED_WORK(&mvmvif->csa_work, 1469 iwl_mvm_channel_switch_disconnect_wk); 1470 1471 if (vif->type == NL80211_IFTYPE_MONITOR) 1472 mvm->monitor_on = true; 1473 1474 iwl_mvm_vif_dbgfs_register(mvm, vif); 1475 1476 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1477 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1478 !mvm->csme_vif && mvm->mei_registered) { 1479 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1480 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1481 mvm->csme_vif = vif; 1482 } 1483 1484 goto out_unlock; 1485 1486 out_unbind: 1487 iwl_mvm_binding_remove_vif(mvm, vif); 1488 out_unref_phy: 1489 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1490 out_free_bf: 1491 if (mvm->bf_allowed_vif == mvmvif) { 1492 mvm->bf_allowed_vif = NULL; 1493 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1494 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1495 } 1496 out_remove_mac: 1497 mvmvif->phy_ctxt = NULL; 1498 iwl_mvm_mac_ctxt_remove(mvm, vif); 1499 out_unlock: 1500 mutex_unlock(&mvm->mutex); 1501 1502 return ret; 1503 } 1504 1505 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1506 struct ieee80211_vif *vif) 1507 { 1508 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1509 /* 1510 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1511 * We assume here that all the packets sent to the OFFCHANNEL 1512 * queue are sent in ROC session. 1513 */ 1514 flush_work(&mvm->roc_done_wk); 1515 } 1516 } 1517 1518 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1519 struct ieee80211_vif *vif) 1520 { 1521 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1522 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1523 struct iwl_probe_resp_data *probe_data; 1524 1525 iwl_mvm_prepare_mac_removal(mvm, vif); 1526 1527 if (!(vif->type == NL80211_IFTYPE_AP || 1528 vif->type == NL80211_IFTYPE_ADHOC)) 1529 iwl_mvm_tcm_rm_vif(mvm, vif); 1530 1531 mutex_lock(&mvm->mutex); 1532 1533 if (vif == mvm->csme_vif) { 1534 iwl_mei_set_netdev(NULL); 1535 mvm->csme_vif = NULL; 1536 } 1537 1538 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1539 lockdep_is_held(&mvm->mutex)); 1540 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1541 if (probe_data) 1542 kfree_rcu(probe_data, rcu_head); 1543 1544 if (mvm->bf_allowed_vif == mvmvif) { 1545 mvm->bf_allowed_vif = NULL; 1546 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1547 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1548 } 1549 1550 if (vif->bss_conf.ftm_responder) 1551 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1552 1553 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1554 1555 /* 1556 * For AP/GO interface, the tear down of the resources allocated to the 1557 * interface is be handled as part of the stop_ap flow. 1558 */ 1559 if (vif->type == NL80211_IFTYPE_AP || 1560 vif->type == NL80211_IFTYPE_ADHOC) { 1561 #ifdef CONFIG_NL80211_TESTMODE 1562 if (vif == mvm->noa_vif) { 1563 mvm->noa_vif = NULL; 1564 mvm->noa_duration = 0; 1565 } 1566 #endif 1567 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1568 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1569 goto out_release; 1570 } 1571 1572 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1573 mvm->p2p_device_vif = NULL; 1574 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1575 iwl_mvm_binding_remove_vif(mvm, vif); 1576 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1577 mvmvif->phy_ctxt = NULL; 1578 } 1579 1580 iwl_mvm_power_update_mac(mvm); 1581 iwl_mvm_mac_ctxt_remove(mvm, vif); 1582 1583 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1584 1585 if (vif->type == NL80211_IFTYPE_MONITOR) 1586 mvm->monitor_on = false; 1587 1588 out_release: 1589 mutex_unlock(&mvm->mutex); 1590 } 1591 1592 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1593 { 1594 return 0; 1595 } 1596 1597 struct iwl_mvm_mc_iter_data { 1598 struct iwl_mvm *mvm; 1599 int port_id; 1600 }; 1601 1602 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1603 struct ieee80211_vif *vif) 1604 { 1605 struct iwl_mvm_mc_iter_data *data = _data; 1606 struct iwl_mvm *mvm = data->mvm; 1607 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1608 struct iwl_host_cmd hcmd = { 1609 .id = MCAST_FILTER_CMD, 1610 .flags = CMD_ASYNC, 1611 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1612 }; 1613 int ret, len; 1614 1615 /* if we don't have free ports, mcast frames will be dropped */ 1616 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1617 return; 1618 1619 if (vif->type != NL80211_IFTYPE_STATION || 1620 !vif->cfg.assoc) 1621 return; 1622 1623 cmd->port_id = data->port_id++; 1624 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1625 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1626 1627 hcmd.len[0] = len; 1628 hcmd.data[0] = cmd; 1629 1630 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1631 if (ret) 1632 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1633 } 1634 1635 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1636 { 1637 struct iwl_mvm_mc_iter_data iter_data = { 1638 .mvm = mvm, 1639 }; 1640 int ret; 1641 1642 lockdep_assert_held(&mvm->mutex); 1643 1644 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1645 return; 1646 1647 ieee80211_iterate_active_interfaces_atomic( 1648 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1649 iwl_mvm_mc_iface_iterator, &iter_data); 1650 1651 /* 1652 * Send a (synchronous) ech command so that we wait for the 1653 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1654 * the interface iterator. Otherwise, we might get here over 1655 * and over again (by userspace just sending a lot of these) 1656 * and the CPU can send them faster than the firmware can 1657 * process them. 1658 * Note that the CPU is still faster - but with this we'll 1659 * actually send fewer commands overall because the CPU will 1660 * not schedule the work in mac80211 as frequently if it's 1661 * still running when rescheduled (possibly multiple times). 1662 */ 1663 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1664 if (ret) 1665 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1666 } 1667 1668 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1669 struct netdev_hw_addr_list *mc_list) 1670 { 1671 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1672 struct iwl_mcast_filter_cmd *cmd; 1673 struct netdev_hw_addr *addr; 1674 int addr_count; 1675 bool pass_all; 1676 int len; 1677 1678 addr_count = netdev_hw_addr_list_count(mc_list); 1679 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1680 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1681 if (pass_all) 1682 addr_count = 0; 1683 1684 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1685 cmd = kzalloc(len, GFP_ATOMIC); 1686 if (!cmd) 1687 return 0; 1688 1689 if (pass_all) { 1690 cmd->pass_all = 1; 1691 return (u64)(unsigned long)cmd; 1692 } 1693 1694 netdev_hw_addr_list_for_each(addr, mc_list) { 1695 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1696 cmd->count, addr->addr); 1697 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1698 addr->addr, ETH_ALEN); 1699 cmd->count++; 1700 } 1701 1702 return (u64)(unsigned long)cmd; 1703 } 1704 1705 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1706 unsigned int changed_flags, 1707 unsigned int *total_flags, 1708 u64 multicast) 1709 { 1710 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1711 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1712 1713 mutex_lock(&mvm->mutex); 1714 1715 /* replace previous configuration */ 1716 kfree(mvm->mcast_filter_cmd); 1717 mvm->mcast_filter_cmd = cmd; 1718 1719 if (!cmd) 1720 goto out; 1721 1722 if (changed_flags & FIF_ALLMULTI) 1723 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1724 1725 if (cmd->pass_all) 1726 cmd->count = 0; 1727 1728 iwl_mvm_recalc_multicast(mvm); 1729 out: 1730 mutex_unlock(&mvm->mutex); 1731 *total_flags = 0; 1732 } 1733 1734 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1735 struct ieee80211_vif *vif, 1736 unsigned int filter_flags, 1737 unsigned int changed_flags) 1738 { 1739 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1740 1741 /* We support only filter for probe requests */ 1742 if (!(changed_flags & FIF_PROBE_REQ)) 1743 return; 1744 1745 /* Supported only for p2p client interfaces */ 1746 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1747 !vif->p2p) 1748 return; 1749 1750 mutex_lock(&mvm->mutex); 1751 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1752 mutex_unlock(&mvm->mutex); 1753 } 1754 1755 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1756 struct ieee80211_vif *vif) 1757 { 1758 struct iwl_mu_group_mgmt_cmd cmd = {}; 1759 1760 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1761 WLAN_MEMBERSHIP_LEN); 1762 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1763 WLAN_USER_POSITION_LEN); 1764 1765 return iwl_mvm_send_cmd_pdu(mvm, 1766 WIDE_ID(DATA_PATH_GROUP, 1767 UPDATE_MU_GROUPS_CMD), 1768 0, sizeof(cmd), &cmd); 1769 } 1770 1771 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1772 struct ieee80211_vif *vif) 1773 { 1774 if (vif->bss_conf.mu_mimo_owner) { 1775 struct iwl_mu_group_mgmt_notif *notif = _data; 1776 1777 /* 1778 * MU-MIMO Group Id action frame is little endian. We treat 1779 * the data received from firmware as if it came from the 1780 * action frame, so no conversion is needed. 1781 */ 1782 ieee80211_update_mu_groups(vif, 0, 1783 (u8 *)¬if->membership_status, 1784 (u8 *)¬if->user_position); 1785 } 1786 } 1787 1788 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1789 struct iwl_rx_cmd_buffer *rxb) 1790 { 1791 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1792 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1793 1794 ieee80211_iterate_active_interfaces_atomic( 1795 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1796 iwl_mvm_mu_mimo_iface_iterator, notif); 1797 } 1798 1799 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1800 { 1801 u8 byte_num = ppe_pos_bit / 8; 1802 u8 bit_num = ppe_pos_bit % 8; 1803 u8 residue_bits; 1804 u8 res; 1805 1806 if (bit_num <= 5) 1807 return (ppe[byte_num] >> bit_num) & 1808 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1809 1810 /* 1811 * If bit_num > 5, we have to combine bits with next byte. 1812 * Calculate how many bits we need to take from current byte (called 1813 * here "residue_bits"), and add them to bits from next byte. 1814 */ 1815 1816 residue_bits = 8 - bit_num; 1817 1818 res = (ppe[byte_num + 1] & 1819 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1820 residue_bits; 1821 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1822 1823 return res; 1824 } 1825 1826 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1827 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1828 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit) 1829 { 1830 int i; 1831 1832 /* 1833 * FW currently supports only nss == MAX_HE_SUPP_NSS 1834 * 1835 * If nss > MAX: we can ignore values we don't support 1836 * If nss < MAX: we can set zeros in other streams 1837 */ 1838 if (nss > MAX_HE_SUPP_NSS) { 1839 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 1840 MAX_HE_SUPP_NSS); 1841 nss = MAX_HE_SUPP_NSS; 1842 } 1843 1844 for (i = 0; i < nss; i++) { 1845 u8 ru_index_tmp = ru_index_bitmap << 1; 1846 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 1847 u8 bw; 1848 1849 for (bw = 0; 1850 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1851 bw++) { 1852 ru_index_tmp >>= 1; 1853 1854 if (!(ru_index_tmp & 1)) 1855 continue; 1856 1857 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 1858 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 1859 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 1860 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 1861 1862 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 1863 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 1864 } 1865 } 1866 } 1867 1868 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 1869 struct ieee80211_sta *sta, 1870 struct iwl_he_pkt_ext_v2 *pkt_ext) 1871 { 1872 u8 nss = (sta->deflink.he_cap.ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) + 1; 1873 u8 *ppe = &sta->deflink.he_cap.ppe_thres[0]; 1874 u8 ru_index_bitmap = 1875 u8_get_bits(*ppe, 1876 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 1877 /* Starting after PPE header */ 1878 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 1879 1880 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit); 1881 } 1882 1883 static void iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 1884 u8 nominal_padding, 1885 u32 *flags) 1886 { 1887 int low_th = -1; 1888 int high_th = -1; 1889 int i; 1890 1891 switch (nominal_padding) { 1892 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US: 1893 low_th = IWL_HE_PKT_EXT_NONE; 1894 high_th = IWL_HE_PKT_EXT_NONE; 1895 break; 1896 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US: 1897 low_th = IWL_HE_PKT_EXT_BPSK; 1898 high_th = IWL_HE_PKT_EXT_NONE; 1899 break; 1900 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US: 1901 low_th = IWL_HE_PKT_EXT_NONE; 1902 high_th = IWL_HE_PKT_EXT_BPSK; 1903 break; 1904 } 1905 1906 /* Set the PPE thresholds accordingly */ 1907 if (low_th >= 0 && high_th >= 0) { 1908 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 1909 u8 bw; 1910 1911 for (bw = 0; 1912 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1913 bw++) { 1914 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 1915 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 1916 } 1917 } 1918 1919 *flags |= STA_CTXT_HE_PACKET_EXT; 1920 } 1921 } 1922 1923 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 1924 struct ieee80211_vif *vif, u8 sta_id) 1925 { 1926 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1927 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 1928 .sta_id = sta_id, 1929 .tid_limit = IWL_MAX_TID_COUNT, 1930 .bss_color = vif->bss_conf.he_bss_color.color, 1931 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 1932 .frame_time_rts_th = 1933 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 1934 }; 1935 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 1936 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 1937 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 1938 int size; 1939 struct ieee80211_sta *sta; 1940 u32 flags; 1941 int i; 1942 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 1943 struct ieee80211_chanctx_conf *chanctx_conf; 1944 const struct ieee80211_supported_band *sband; 1945 void *cmd; 1946 1947 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 1948 ver = 1; 1949 1950 switch (ver) { 1951 case 1: 1952 /* same layout as v2 except some data at the end */ 1953 cmd = &sta_ctxt_cmd_v2; 1954 size = sizeof(struct iwl_he_sta_context_cmd_v1); 1955 break; 1956 case 2: 1957 cmd = &sta_ctxt_cmd_v2; 1958 size = sizeof(struct iwl_he_sta_context_cmd_v2); 1959 break; 1960 case 3: 1961 cmd = &sta_ctxt_cmd; 1962 size = sizeof(struct iwl_he_sta_context_cmd_v3); 1963 break; 1964 default: 1965 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 1966 return; 1967 } 1968 1969 rcu_read_lock(); 1970 1971 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf); 1972 if (WARN_ON(!chanctx_conf)) { 1973 rcu_read_unlock(); 1974 return; 1975 } 1976 1977 sband = mvm->hw->wiphy->bands[chanctx_conf->def.chan->band]; 1978 own_he_cap = ieee80211_get_he_iftype_cap(sband, 1979 ieee80211_vif_type_p2p(vif)); 1980 1981 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 1982 if (IS_ERR_OR_NULL(sta)) { 1983 rcu_read_unlock(); 1984 WARN(1, "Can't find STA to configure HE\n"); 1985 return; 1986 } 1987 1988 if (!sta->deflink.he_cap.has_he) { 1989 rcu_read_unlock(); 1990 return; 1991 } 1992 1993 flags = 0; 1994 1995 /* Block 26-tone RU OFDMA transmissions */ 1996 if (mvmvif->he_ru_2mhz_block) 1997 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 1998 1999 /* HTC flags */ 2000 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[0] & 2001 IEEE80211_HE_MAC_CAP0_HTC_HE) 2002 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2003 if ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] & 2004 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2005 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2006 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2007 u8 link_adap = 2008 ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2009 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2010 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] & 2011 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2012 2013 if (link_adap == 2) 2014 sta_ctxt_cmd.htc_flags |= 2015 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2016 else if (link_adap == 3) 2017 sta_ctxt_cmd.htc_flags |= 2018 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2019 } 2020 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2021 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2022 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[3] & 2023 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2024 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2025 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2026 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2027 2028 /* 2029 * Initialize the PPE thresholds to "None" (7), as described in Table 2030 * 9-262ac of 80211.ax/D3.0. 2031 */ 2032 memset(&sta_ctxt_cmd.pkt_ext, IWL_HE_PKT_EXT_NONE, 2033 sizeof(sta_ctxt_cmd.pkt_ext)); 2034 2035 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2036 if (sta->deflink.he_cap.he_cap_elem.phy_cap_info[6] & 2037 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2038 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, sta, 2039 &sta_ctxt_cmd.pkt_ext); 2040 flags |= STA_CTXT_HE_PACKET_EXT; 2041 /* PPE Thresholds doesn't exist - set the API PPE values 2042 * according to Common Nominal Packet Padding fiels. */ 2043 } else { 2044 u8 nominal_padding = 2045 u8_get_bits(sta->deflink.he_cap.he_cap_elem.phy_cap_info[9], 2046 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2047 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2048 iwl_mvm_set_pkt_ext_from_nominal_padding(&sta_ctxt_cmd.pkt_ext, 2049 nominal_padding, 2050 &flags); 2051 } 2052 2053 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2054 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2055 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2056 2057 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2058 IEEE80211_HE_MAC_CAP2_ACK_EN) 2059 flags |= STA_CTXT_HE_ACK_ENABLED; 2060 2061 rcu_read_unlock(); 2062 2063 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2064 flags |= STA_CTXT_HE_MU_EDCA_CW; 2065 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2066 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2067 &mvmvif->queue_params[i].mu_edca_param_rec; 2068 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2069 2070 if (!mvmvif->queue_params[i].mu_edca) { 2071 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2072 break; 2073 } 2074 2075 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2076 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2077 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2078 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2079 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2080 cpu_to_le16(mu_edca->aifsn); 2081 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2082 cpu_to_le16(mu_edca->mu_edca_timer); 2083 } 2084 2085 2086 if (vif->bss_conf.uora_exists) { 2087 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2088 2089 sta_ctxt_cmd.rand_alloc_ecwmin = 2090 vif->bss_conf.uora_ocw_range & 0x7; 2091 sta_ctxt_cmd.rand_alloc_ecwmax = 2092 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2093 } 2094 2095 if (own_he_cap && !(own_he_cap->he_cap_elem.mac_cap_info[2] & 2096 IEEE80211_HE_MAC_CAP2_ACK_EN)) 2097 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2098 2099 if (vif->bss_conf.nontransmitted) { 2100 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2101 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2102 vif->bss_conf.transmitter_bssid); 2103 sta_ctxt_cmd.max_bssid_indicator = 2104 vif->bss_conf.bssid_indicator; 2105 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2106 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2107 sta_ctxt_cmd.profile_periodicity = 2108 vif->bss_conf.profile_periodicity; 2109 } 2110 2111 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2112 2113 if (ver < 3) { 2114 /* fields before pkt_ext */ 2115 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2116 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2117 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2118 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2119 2120 /* pkt_ext */ 2121 for (i = 0; 2122 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2123 i++) { 2124 u8 bw; 2125 2126 for (bw = 0; 2127 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2128 bw++) { 2129 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2130 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2131 2132 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2133 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2134 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2135 } 2136 } 2137 2138 /* fields after pkt_ext */ 2139 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2140 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2141 sizeof(sta_ctxt_cmd_v2) - 2142 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2143 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2144 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2145 (u8 *)&sta_ctxt_cmd + 2146 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2147 sizeof(sta_ctxt_cmd) - 2148 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2149 sta_ctxt_cmd_v2.reserved3 = 0; 2150 } 2151 2152 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2153 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2154 } 2155 2156 static void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, 2157 struct ieee80211_vif *vif, 2158 u32 duration_override) 2159 { 2160 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2161 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2162 2163 if (duration_override > duration) 2164 duration = duration_override; 2165 2166 /* Try really hard to protect the session and hear a beacon 2167 * The new session protection command allows us to protect the 2168 * session for a much longer time since the firmware will internally 2169 * create two events: a 300TU one with a very high priority that 2170 * won't be fragmented which should be enough for 99% of the cases, 2171 * and another one (which we configure here to be 900TU long) which 2172 * will have a slightly lower priority, but more importantly, can be 2173 * fragmented so that it'll allow other activities to run. 2174 */ 2175 if (fw_has_capa(&mvm->fw->ucode_capa, 2176 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2177 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2178 min_duration, false); 2179 else 2180 iwl_mvm_protect_session(mvm, vif, duration, 2181 min_duration, 500, false); 2182 } 2183 2184 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2185 struct ieee80211_vif *vif, 2186 struct ieee80211_bss_conf *bss_conf, 2187 u64 changes) 2188 { 2189 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2190 int ret; 2191 2192 /* 2193 * Re-calculate the tsf id, as the leader-follower relations depend 2194 * on the beacon interval, which was not known when the station 2195 * interface was added. 2196 */ 2197 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2198 if (vif->bss_conf.he_support && 2199 !iwlwifi_mod_params.disable_11ax) 2200 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2201 2202 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2203 } 2204 2205 /* Update MU EDCA params */ 2206 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2207 vif->cfg.assoc && vif->bss_conf.he_support && 2208 !iwlwifi_mod_params.disable_11ax) 2209 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2210 2211 /* 2212 * If we're not associated yet, take the (new) BSSID before associating 2213 * so the firmware knows. If we're already associated, then use the old 2214 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2215 * branch for disassociation below. 2216 */ 2217 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2218 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2219 2220 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2221 if (ret) 2222 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2223 2224 /* after sending it once, adopt mac80211 data */ 2225 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2226 mvmvif->associated = vif->cfg.assoc; 2227 2228 if (changes & BSS_CHANGED_ASSOC) { 2229 if (vif->cfg.assoc) { 2230 /* clear statistics to get clean beacon counter */ 2231 iwl_mvm_request_statistics(mvm, true); 2232 memset(&mvmvif->beacon_stats, 0, 2233 sizeof(mvmvif->beacon_stats)); 2234 2235 /* add quota for this interface */ 2236 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2237 if (ret) { 2238 IWL_ERR(mvm, "failed to update quotas\n"); 2239 return; 2240 } 2241 2242 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2243 &mvm->status) && 2244 !fw_has_capa(&mvm->fw->ucode_capa, 2245 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2246 /* 2247 * If we're restarting then the firmware will 2248 * obviously have lost synchronisation with 2249 * the AP. It will attempt to synchronise by 2250 * itself, but we can make it more reliable by 2251 * scheduling a session protection time event. 2252 * 2253 * The firmware needs to receive a beacon to 2254 * catch up with synchronisation, use 110% of 2255 * the beacon interval. 2256 * 2257 * Set a large maximum delay to allow for more 2258 * than a single interface. 2259 * 2260 * For new firmware versions, rely on the 2261 * firmware. This is relevant for DCM scenarios 2262 * only anyway. 2263 */ 2264 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2265 iwl_mvm_protect_session(mvm, vif, dur, dur, 2266 5 * dur, false); 2267 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2268 &mvm->status) && 2269 !vif->bss_conf.dtim_period) { 2270 /* 2271 * If we're not restarting and still haven't 2272 * heard a beacon (dtim period unknown) then 2273 * make sure we still have enough minimum time 2274 * remaining in the time event, since the auth 2275 * might actually have taken quite a while 2276 * (especially for SAE) and so the remaining 2277 * time could be small without us having heard 2278 * a beacon yet. 2279 */ 2280 iwl_mvm_protect_assoc(mvm, vif, 0); 2281 } 2282 2283 iwl_mvm_sf_update(mvm, vif, false); 2284 iwl_mvm_power_vif_assoc(mvm, vif); 2285 if (vif->p2p) { 2286 iwl_mvm_update_smps(mvm, vif, 2287 IWL_MVM_SMPS_REQ_PROT, 2288 IEEE80211_SMPS_DYNAMIC); 2289 } 2290 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2291 iwl_mvm_mei_host_disassociated(mvm); 2292 /* 2293 * If update fails - SF might be running in associated 2294 * mode while disassociated - which is forbidden. 2295 */ 2296 ret = iwl_mvm_sf_update(mvm, vif, false); 2297 WARN_ONCE(ret && 2298 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2299 &mvm->status), 2300 "Failed to update SF upon disassociation\n"); 2301 2302 /* 2303 * If we get an assert during the connection (after the 2304 * station has been added, but before the vif is set 2305 * to associated), mac80211 will re-add the station and 2306 * then configure the vif. Since the vif is not 2307 * associated, we would remove the station here and 2308 * this would fail the recovery. 2309 */ 2310 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2311 &mvm->status)) { 2312 /* first remove remaining keys */ 2313 iwl_mvm_sec_key_remove_ap(mvm, vif); 2314 2315 /* 2316 * Remove AP station now that 2317 * the MAC is unassoc 2318 */ 2319 ret = iwl_mvm_rm_sta_id(mvm, vif, 2320 mvmvif->ap_sta_id); 2321 if (ret) 2322 IWL_ERR(mvm, 2323 "failed to remove AP station\n"); 2324 2325 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2326 } 2327 2328 /* remove quota for this interface */ 2329 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2330 if (ret) 2331 IWL_ERR(mvm, "failed to update quotas\n"); 2332 2333 /* this will take the cleared BSSID from bss_conf */ 2334 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2335 if (ret) 2336 IWL_ERR(mvm, 2337 "failed to update MAC %pM (clear after unassoc)\n", 2338 vif->addr); 2339 } 2340 2341 /* 2342 * The firmware tracks the MU-MIMO group on its own. 2343 * However, on HW restart we should restore this data. 2344 */ 2345 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2346 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2347 ret = iwl_mvm_update_mu_groups(mvm, vif); 2348 if (ret) 2349 IWL_ERR(mvm, 2350 "failed to update VHT MU_MIMO groups\n"); 2351 } 2352 2353 iwl_mvm_recalc_multicast(mvm); 2354 2355 /* reset rssi values */ 2356 mvmvif->bf_data.ave_beacon_signal = 0; 2357 2358 iwl_mvm_bt_coex_vif_change(mvm); 2359 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2360 IEEE80211_SMPS_AUTOMATIC); 2361 if (fw_has_capa(&mvm->fw->ucode_capa, 2362 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2363 iwl_mvm_config_scan(mvm); 2364 } 2365 2366 if (changes & BSS_CHANGED_BEACON_INFO) { 2367 /* 2368 * We received a beacon from the associated AP so 2369 * remove the session protection. 2370 */ 2371 iwl_mvm_stop_session_protection(mvm, vif); 2372 2373 iwl_mvm_sf_update(mvm, vif, false); 2374 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2375 } 2376 2377 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2378 /* 2379 * Send power command on every beacon change, 2380 * because we may have not enabled beacon abort yet. 2381 */ 2382 BSS_CHANGED_BEACON_INFO)) { 2383 ret = iwl_mvm_power_update_mac(mvm); 2384 if (ret) 2385 IWL_ERR(mvm, "failed to update power mode\n"); 2386 } 2387 2388 if (changes & BSS_CHANGED_CQM) { 2389 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2390 /* reset cqm events tracking */ 2391 mvmvif->bf_data.last_cqm_event = 0; 2392 if (mvmvif->bf_data.bf_enabled) { 2393 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2394 if (ret) 2395 IWL_ERR(mvm, 2396 "failed to update CQM thresholds\n"); 2397 } 2398 } 2399 2400 if (changes & BSS_CHANGED_BANDWIDTH) 2401 iwl_mvm_apply_fw_smps_request(vif); 2402 } 2403 2404 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2405 struct ieee80211_vif *vif, 2406 struct ieee80211_bss_conf *link_conf) 2407 { 2408 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2409 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2410 int ret, i; 2411 2412 mutex_lock(&mvm->mutex); 2413 2414 /* Send the beacon template */ 2415 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2416 if (ret) 2417 goto out_unlock; 2418 2419 /* 2420 * Re-calculate the tsf id, as the leader-follower relations depend on 2421 * the beacon interval, which was not known when the AP interface 2422 * was added. 2423 */ 2424 if (vif->type == NL80211_IFTYPE_AP) 2425 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2426 2427 mvmvif->ap_assoc_sta_count = 0; 2428 2429 /* Add the mac context */ 2430 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2431 if (ret) 2432 goto out_unlock; 2433 2434 /* Perform the binding */ 2435 ret = iwl_mvm_binding_add_vif(mvm, vif); 2436 if (ret) 2437 goto out_remove; 2438 2439 /* 2440 * This is not very nice, but the simplest: 2441 * For older FWs adding the mcast sta before the bcast station may 2442 * cause assert 0x2b00. 2443 * This is fixed in later FW so make the order of removal depend on 2444 * the TLV 2445 */ 2446 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2447 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2448 if (ret) 2449 goto out_unbind; 2450 /* 2451 * Send the bcast station. At this stage the TBTT and DTIM time 2452 * events are added and applied to the scheduler 2453 */ 2454 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2455 if (ret) { 2456 iwl_mvm_rm_mcast_sta(mvm, vif); 2457 goto out_unbind; 2458 } 2459 } else { 2460 /* 2461 * Send the bcast station. At this stage the TBTT and DTIM time 2462 * events are added and applied to the scheduler 2463 */ 2464 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2465 if (ret) 2466 goto out_unbind; 2467 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2468 if (ret) { 2469 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2470 goto out_unbind; 2471 } 2472 } 2473 2474 /* must be set before quota calculations */ 2475 mvmvif->ap_ibss_active = true; 2476 2477 /* send all the early keys to the device now */ 2478 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2479 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2480 2481 if (!key) 2482 continue; 2483 2484 mvmvif->ap_early_keys[i] = NULL; 2485 2486 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2487 if (ret) 2488 goto out_quota_failed; 2489 } 2490 2491 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2492 iwl_mvm_vif_set_low_latency(mvmvif, true, 2493 LOW_LATENCY_VIF_TYPE); 2494 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2495 } 2496 2497 /* power updated needs to be done before quotas */ 2498 iwl_mvm_power_update_mac(mvm); 2499 2500 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2501 if (ret) 2502 goto out_quota_failed; 2503 2504 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2505 if (vif->p2p && mvm->p2p_device_vif) 2506 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2507 2508 iwl_mvm_bt_coex_vif_change(mvm); 2509 2510 /* we don't support TDLS during DCM */ 2511 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2512 iwl_mvm_teardown_tdls_peers(mvm); 2513 2514 iwl_mvm_ftm_restart_responder(mvm, vif); 2515 2516 goto out_unlock; 2517 2518 out_quota_failed: 2519 iwl_mvm_power_update_mac(mvm); 2520 mvmvif->ap_ibss_active = false; 2521 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2522 iwl_mvm_rm_mcast_sta(mvm, vif); 2523 out_unbind: 2524 iwl_mvm_binding_remove_vif(mvm, vif); 2525 out_remove: 2526 iwl_mvm_mac_ctxt_remove(mvm, vif); 2527 out_unlock: 2528 mutex_unlock(&mvm->mutex); 2529 return ret; 2530 } 2531 2532 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2533 struct ieee80211_vif *vif, 2534 struct ieee80211_bss_conf *link_conf) 2535 { 2536 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2537 } 2538 2539 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2540 struct ieee80211_vif *vif) 2541 { 2542 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2543 } 2544 2545 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2546 struct ieee80211_vif *vif, 2547 struct ieee80211_bss_conf *link_conf) 2548 { 2549 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2550 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2551 2552 iwl_mvm_prepare_mac_removal(mvm, vif); 2553 2554 mutex_lock(&mvm->mutex); 2555 2556 /* Handle AP stop while in CSA */ 2557 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2558 iwl_mvm_remove_time_event(mvm, mvmvif, 2559 &mvmvif->time_event_data); 2560 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2561 mvmvif->csa_countdown = false; 2562 } 2563 2564 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2565 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2566 mvm->csa_tx_block_bcn_timeout = 0; 2567 } 2568 2569 mvmvif->ap_ibss_active = false; 2570 mvm->ap_last_beacon_gp2 = 0; 2571 2572 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2573 iwl_mvm_vif_set_low_latency(mvmvif, false, 2574 LOW_LATENCY_VIF_TYPE); 2575 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2576 } 2577 2578 iwl_mvm_bt_coex_vif_change(mvm); 2579 2580 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2581 if (vif->p2p && mvm->p2p_device_vif) 2582 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2583 2584 iwl_mvm_update_quotas(mvm, false, NULL); 2585 2586 iwl_mvm_ftm_responder_clear(mvm, vif); 2587 2588 /* 2589 * This is not very nice, but the simplest: 2590 * For older FWs removing the mcast sta before the bcast station may 2591 * cause assert 0x2b00. 2592 * This is fixed in later FW (which will stop beaconing when removing 2593 * bcast station). 2594 * So make the order of removal depend on the TLV 2595 */ 2596 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2597 iwl_mvm_rm_mcast_sta(mvm, vif); 2598 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2599 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2600 iwl_mvm_rm_mcast_sta(mvm, vif); 2601 iwl_mvm_binding_remove_vif(mvm, vif); 2602 2603 iwl_mvm_power_update_mac(mvm); 2604 2605 iwl_mvm_mac_ctxt_remove(mvm, vif); 2606 2607 mutex_unlock(&mvm->mutex); 2608 } 2609 2610 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 2611 struct ieee80211_vif *vif, 2612 struct ieee80211_bss_conf *link_conf) 2613 { 2614 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 2615 } 2616 2617 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 2618 struct ieee80211_vif *vif) 2619 { 2620 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 2621 } 2622 2623 static void 2624 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2625 struct ieee80211_vif *vif, 2626 struct ieee80211_bss_conf *bss_conf, 2627 u64 changes) 2628 { 2629 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2630 2631 /* Changes will be applied when the AP/IBSS is started */ 2632 if (!mvmvif->ap_ibss_active) 2633 return; 2634 2635 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2636 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2637 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2638 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2639 2640 /* Need to send a new beacon template to the FW */ 2641 if (changes & BSS_CHANGED_BEACON && 2642 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2643 IWL_WARN(mvm, "Failed updating beacon data\n"); 2644 2645 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2646 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2647 2648 if (ret) 2649 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2650 ret); 2651 } 2652 2653 } 2654 2655 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2656 struct ieee80211_vif *vif, 2657 struct ieee80211_bss_conf *bss_conf, 2658 u64 changes) 2659 { 2660 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2661 2662 mutex_lock(&mvm->mutex); 2663 2664 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 2665 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2666 2667 switch (vif->type) { 2668 case NL80211_IFTYPE_STATION: 2669 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2670 break; 2671 case NL80211_IFTYPE_AP: 2672 case NL80211_IFTYPE_ADHOC: 2673 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2674 break; 2675 case NL80211_IFTYPE_MONITOR: 2676 if (changes & BSS_CHANGED_MU_GROUPS) 2677 iwl_mvm_update_mu_groups(mvm, vif); 2678 break; 2679 default: 2680 /* shouldn't happen */ 2681 WARN_ON_ONCE(1); 2682 } 2683 2684 if (changes & BSS_CHANGED_TXPOWER) { 2685 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 2686 bss_conf->txpower); 2687 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2688 } 2689 2690 mutex_unlock(&mvm->mutex); 2691 } 2692 2693 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2694 struct ieee80211_vif *vif, 2695 struct ieee80211_scan_request *hw_req) 2696 { 2697 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2698 int ret; 2699 2700 if (hw_req->req.n_channels == 0 || 2701 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2702 return -EINVAL; 2703 2704 mutex_lock(&mvm->mutex); 2705 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2706 mutex_unlock(&mvm->mutex); 2707 2708 return ret; 2709 } 2710 2711 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2712 struct ieee80211_vif *vif) 2713 { 2714 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2715 2716 mutex_lock(&mvm->mutex); 2717 2718 /* Due to a race condition, it's possible that mac80211 asks 2719 * us to stop a hw_scan when it's already stopped. This can 2720 * happen, for instance, if we stopped the scan ourselves, 2721 * called ieee80211_scan_completed() and the userspace called 2722 * cancel scan scan before ieee80211_scan_work() could run. 2723 * To handle that, simply return if the scan is not running. 2724 */ 2725 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2726 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2727 2728 mutex_unlock(&mvm->mutex); 2729 } 2730 2731 static void 2732 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2733 struct ieee80211_sta *sta, u16 tids, 2734 int num_frames, 2735 enum ieee80211_frame_release_type reason, 2736 bool more_data) 2737 { 2738 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2739 2740 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2741 2742 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2743 tids, more_data, false); 2744 } 2745 2746 static void 2747 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2748 struct ieee80211_sta *sta, u16 tids, 2749 int num_frames, 2750 enum ieee80211_frame_release_type reason, 2751 bool more_data) 2752 { 2753 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2754 2755 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2756 2757 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2758 tids, more_data, true); 2759 } 2760 2761 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2762 enum sta_notify_cmd cmd, 2763 struct ieee80211_sta *sta) 2764 { 2765 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2766 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2767 unsigned long txqs = 0, tids = 0; 2768 int tid; 2769 2770 /* 2771 * If we have TVQM then we get too high queue numbers - luckily 2772 * we really shouldn't get here with that because such hardware 2773 * should have firmware supporting buffer station offload. 2774 */ 2775 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2776 return; 2777 2778 spin_lock_bh(&mvmsta->lock); 2779 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2780 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2781 2782 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2783 continue; 2784 2785 __set_bit(tid_data->txq_id, &txqs); 2786 2787 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2788 continue; 2789 2790 __set_bit(tid, &tids); 2791 } 2792 2793 switch (cmd) { 2794 case STA_NOTIFY_SLEEP: 2795 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2796 ieee80211_sta_set_buffered(sta, tid, true); 2797 2798 if (txqs) 2799 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2800 /* 2801 * The fw updates the STA to be asleep. Tx packets on the Tx 2802 * queues to this station will not be transmitted. The fw will 2803 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2804 */ 2805 break; 2806 case STA_NOTIFY_AWAKE: 2807 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2808 break; 2809 2810 if (txqs) 2811 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2812 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2813 break; 2814 default: 2815 break; 2816 } 2817 spin_unlock_bh(&mvmsta->lock); 2818 } 2819 2820 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2821 struct ieee80211_vif *vif, 2822 enum sta_notify_cmd cmd, 2823 struct ieee80211_sta *sta) 2824 { 2825 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2826 } 2827 2828 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2829 { 2830 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2831 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2832 struct ieee80211_sta *sta; 2833 struct iwl_mvm_sta *mvmsta; 2834 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2835 2836 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 2837 return; 2838 2839 rcu_read_lock(); 2840 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2841 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2842 rcu_read_unlock(); 2843 return; 2844 } 2845 2846 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2847 2848 if (!mvmsta->vif || 2849 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2850 rcu_read_unlock(); 2851 return; 2852 } 2853 2854 if (mvmsta->sleeping != sleeping) { 2855 mvmsta->sleeping = sleeping; 2856 __iwl_mvm_mac_sta_notify(mvm->hw, 2857 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2858 sta); 2859 ieee80211_sta_ps_transition(sta, sleeping); 2860 } 2861 2862 if (sleeping) { 2863 switch (notif->type) { 2864 case IWL_MVM_PM_EVENT_AWAKE: 2865 case IWL_MVM_PM_EVENT_ASLEEP: 2866 break; 2867 case IWL_MVM_PM_EVENT_UAPSD: 2868 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2869 break; 2870 case IWL_MVM_PM_EVENT_PS_POLL: 2871 ieee80211_sta_pspoll(sta); 2872 break; 2873 default: 2874 break; 2875 } 2876 } 2877 2878 rcu_read_unlock(); 2879 } 2880 2881 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2882 struct ieee80211_vif *vif, 2883 struct ieee80211_sta *sta) 2884 { 2885 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2886 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2887 2888 /* 2889 * This is called before mac80211 does RCU synchronisation, 2890 * so here we already invalidate our internal RCU-protected 2891 * station pointer. The rest of the code will thus no longer 2892 * be able to find the station this way, and we don't rely 2893 * on further RCU synchronisation after the sta_state() 2894 * callback deleted the station. 2895 */ 2896 mutex_lock(&mvm->mutex); 2897 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2898 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2899 ERR_PTR(-ENOENT)); 2900 2901 mutex_unlock(&mvm->mutex); 2902 } 2903 2904 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2905 const u8 *bssid) 2906 { 2907 int i; 2908 2909 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2910 struct iwl_mvm_tcm_mac *mdata; 2911 2912 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 2913 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 2914 mdata->opened_rx_ba_sessions = false; 2915 } 2916 2917 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2918 return; 2919 2920 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2921 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2922 return; 2923 } 2924 2925 if (!vif->p2p && 2926 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2927 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2928 return; 2929 } 2930 2931 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 2932 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 2933 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2934 return; 2935 } 2936 } 2937 2938 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2939 } 2940 2941 static void 2942 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 2943 struct ieee80211_vif *vif, u8 *peer_addr, 2944 enum nl80211_tdls_operation action) 2945 { 2946 struct iwl_fw_dbg_trigger_tlv *trig; 2947 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 2948 2949 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 2950 FW_DBG_TRIGGER_TDLS); 2951 if (!trig) 2952 return; 2953 2954 tdls_trig = (void *)trig->data; 2955 2956 if (!(tdls_trig->action_bitmap & BIT(action))) 2957 return; 2958 2959 if (tdls_trig->peer_mode && 2960 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 2961 return; 2962 2963 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 2964 "TDLS event occurred, peer %pM, action %d", 2965 peer_addr, action); 2966 } 2967 2968 struct iwl_mvm_he_obss_narrow_bw_ru_data { 2969 bool tolerated; 2970 }; 2971 2972 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 2973 struct cfg80211_bss *bss, 2974 void *_data) 2975 { 2976 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 2977 const struct cfg80211_bss_ies *ies; 2978 const struct element *elem; 2979 2980 rcu_read_lock(); 2981 ies = rcu_dereference(bss->ies); 2982 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 2983 ies->len); 2984 2985 if (!elem || elem->datalen < 10 || 2986 !(elem->data[10] & 2987 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 2988 data->tolerated = false; 2989 } 2990 rcu_read_unlock(); 2991 } 2992 2993 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 2994 struct ieee80211_vif *vif) 2995 { 2996 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2997 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 2998 .tolerated = true, 2999 }; 3000 3001 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3002 mvmvif->he_ru_2mhz_block = false; 3003 return; 3004 } 3005 3006 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3007 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3008 &iter_data); 3009 3010 /* 3011 * If there is at least one AP on radar channel that cannot 3012 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3013 */ 3014 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3015 } 3016 3017 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3018 struct ieee80211_vif *vif) 3019 { 3020 struct ieee80211_supported_band *sband; 3021 const struct ieee80211_sta_he_cap *he_cap; 3022 3023 if (vif->type != NL80211_IFTYPE_STATION) 3024 return; 3025 3026 if (!mvm->cca_40mhz_workaround) 3027 return; 3028 3029 /* decrement and check that we reached zero */ 3030 mvm->cca_40mhz_workaround--; 3031 if (mvm->cca_40mhz_workaround) 3032 return; 3033 3034 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3035 3036 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3037 3038 he_cap = ieee80211_get_he_iftype_cap(sband, 3039 ieee80211_vif_type_p2p(vif)); 3040 3041 if (he_cap) { 3042 /* we know that ours is writable */ 3043 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3044 3045 he->he_cap_elem.phy_cap_info[0] |= 3046 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3047 } 3048 } 3049 3050 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3051 struct ieee80211_vif *vif, 3052 struct iwl_mvm_sta *mvm_sta) 3053 { 3054 #if IS_ENABLED(CONFIG_IWLMEI) 3055 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3056 struct iwl_mei_conn_info conn_info = { 3057 .ssid_len = vif->cfg.ssid_len, 3058 .channel = vif->bss_conf.chandef.chan->hw_value, 3059 }; 3060 3061 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3062 return; 3063 3064 if (!mvm->mei_registered) 3065 return; 3066 3067 switch (mvm_sta->pairwise_cipher) { 3068 case WLAN_CIPHER_SUITE_TKIP: 3069 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3070 break; 3071 case WLAN_CIPHER_SUITE_CCMP: 3072 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3073 break; 3074 case WLAN_CIPHER_SUITE_GCMP: 3075 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3076 break; 3077 case WLAN_CIPHER_SUITE_GCMP_256: 3078 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3079 break; 3080 case 0: 3081 /* open profile */ 3082 break; 3083 default: 3084 /* cipher not supported, don't send anything to iwlmei */ 3085 return; 3086 } 3087 3088 switch (mvmvif->rekey_data.akm) { 3089 case WLAN_AKM_SUITE_SAE & 0xff: 3090 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3091 break; 3092 case WLAN_AKM_SUITE_PSK & 0xff: 3093 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3094 break; 3095 case WLAN_AKM_SUITE_8021X & 0xff: 3096 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3097 break; 3098 case 0: 3099 /* open profile */ 3100 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3101 break; 3102 default: 3103 /* auth method / AKM not supported */ 3104 /* TODO: All the FT vesions of these? */ 3105 return; 3106 } 3107 3108 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3109 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3110 3111 /* TODO: add support for collocated AP data */ 3112 iwl_mei_host_associated(&conn_info, NULL); 3113 #endif 3114 } 3115 3116 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3117 struct ieee80211_vif *vif, 3118 struct ieee80211_sta *sta, 3119 enum ieee80211_sta_state old_state, 3120 enum ieee80211_sta_state new_state) 3121 { 3122 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3123 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3124 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3125 int ret; 3126 3127 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3128 sta->addr, old_state, new_state); 3129 3130 /* this would be a mac80211 bug ... but don't crash */ 3131 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3132 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) ? 0 : -EINVAL; 3133 3134 /* 3135 * If we are in a STA removal flow and in DQA mode: 3136 * 3137 * This is after the sync_rcu part, so the queues have already been 3138 * flushed. No more TXs on their way in mac80211's path, and no more in 3139 * the queues. 3140 * Also, we won't be getting any new TX frames for this station. 3141 * What we might have are deferred TX frames that need to be taken care 3142 * of. 3143 * 3144 * Drop any still-queued deferred-frame before removing the STA, and 3145 * make sure the worker is no longer handling frames for this STA. 3146 */ 3147 if (old_state == IEEE80211_STA_NONE && 3148 new_state == IEEE80211_STA_NOTEXIST) { 3149 flush_work(&mvm->add_stream_wk); 3150 3151 /* 3152 * No need to make sure deferred TX indication is off since the 3153 * worker will already remove it if it was on 3154 */ 3155 3156 /* 3157 * Additionally, reset the 40 MHz capability if we disconnected 3158 * from the AP now. 3159 */ 3160 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3161 } 3162 3163 mutex_lock(&mvm->mutex); 3164 /* track whether or not the station is associated */ 3165 mvm_sta->sta_state = new_state; 3166 3167 if (old_state == IEEE80211_STA_NOTEXIST && 3168 new_state == IEEE80211_STA_NONE) { 3169 /* 3170 * Firmware bug - it'll crash if the beacon interval is less 3171 * than 16. We can't avoid connecting at all, so refuse the 3172 * station state change, this will cause mac80211 to abandon 3173 * attempts to connect to this AP, and eventually wpa_s will 3174 * blocklist the AP... 3175 */ 3176 if (vif->type == NL80211_IFTYPE_STATION && 3177 vif->bss_conf.beacon_int < 16) { 3178 IWL_ERR(mvm, 3179 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3180 sta->addr, vif->bss_conf.beacon_int); 3181 ret = -EINVAL; 3182 goto out_unlock; 3183 } 3184 3185 if (vif->type == NL80211_IFTYPE_STATION) 3186 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3187 3188 if (sta->tdls && 3189 (vif->p2p || 3190 iwl_mvm_tdls_sta_count(mvm, NULL) == 3191 IWL_MVM_TDLS_STA_COUNT || 3192 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3193 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3194 ret = -EBUSY; 3195 goto out_unlock; 3196 } 3197 3198 ret = iwl_mvm_add_sta(mvm, vif, sta); 3199 if (sta->tdls && ret == 0) { 3200 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3201 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3202 NL80211_TDLS_SETUP); 3203 } 3204 3205 sta->deflink.agg.max_rc_amsdu_len = 1; 3206 } else if (old_state == IEEE80211_STA_NONE && 3207 new_state == IEEE80211_STA_AUTH) { 3208 /* 3209 * EBS may be disabled due to previous failures reported by FW. 3210 * Reset EBS status here assuming environment has been changed. 3211 */ 3212 mvm->last_ebs_successful = true; 3213 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3214 ret = 0; 3215 } else if (old_state == IEEE80211_STA_AUTH && 3216 new_state == IEEE80211_STA_ASSOC) { 3217 if (vif->type == NL80211_IFTYPE_AP) { 3218 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3219 mvmvif->ap_assoc_sta_count++; 3220 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3221 if (vif->bss_conf.he_support && 3222 !iwlwifi_mod_params.disable_11ax) 3223 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3224 } else if (vif->type == NL80211_IFTYPE_STATION) { 3225 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3226 3227 mvmvif->he_ru_2mhz_block = false; 3228 if (sta->deflink.he_cap.has_he) 3229 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3230 3231 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3232 } 3233 3234 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3235 false); 3236 ret = iwl_mvm_update_sta(mvm, vif, sta); 3237 } else if (old_state == IEEE80211_STA_ASSOC && 3238 new_state == IEEE80211_STA_AUTHORIZED) { 3239 ret = 0; 3240 3241 /* we don't support TDLS during DCM */ 3242 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3243 iwl_mvm_teardown_tdls_peers(mvm); 3244 3245 if (sta->tdls) { 3246 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3247 NL80211_TDLS_ENABLE_LINK); 3248 } else { 3249 /* enable beacon filtering */ 3250 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3251 3252 mvmvif->authorized = 1; 3253 3254 /* 3255 * Now that the station is authorized, i.e., keys were already 3256 * installed, need to indicate to the FW that 3257 * multicast data frames can be forwarded to the driver 3258 */ 3259 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3260 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3261 } 3262 3263 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3264 true); 3265 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3266 new_state == IEEE80211_STA_ASSOC) { 3267 /* once we move into assoc state, need to update rate scale to 3268 * disable using wide bandwidth 3269 */ 3270 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3271 false); 3272 if (!sta->tdls) { 3273 /* Multicast data frames are no longer allowed */ 3274 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3275 3276 /* 3277 * Set this after the above iwl_mvm_mac_ctxt_changed() 3278 * to avoid sending high prio again for a little time. 3279 */ 3280 mvmvif->authorized = 0; 3281 3282 /* disable beacon filtering */ 3283 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3284 WARN_ON(ret && 3285 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3286 &mvm->status)); 3287 } 3288 ret = 0; 3289 } else if (old_state == IEEE80211_STA_ASSOC && 3290 new_state == IEEE80211_STA_AUTH) { 3291 if (vif->type == NL80211_IFTYPE_AP) { 3292 mvmvif->ap_assoc_sta_count--; 3293 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3294 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3295 iwl_mvm_stop_session_protection(mvm, vif); 3296 ret = 0; 3297 } else if (old_state == IEEE80211_STA_AUTH && 3298 new_state == IEEE80211_STA_NONE) { 3299 ret = 0; 3300 } else if (old_state == IEEE80211_STA_NONE && 3301 new_state == IEEE80211_STA_NOTEXIST) { 3302 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3303 iwl_mvm_stop_session_protection(mvm, vif); 3304 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3305 if (sta->tdls) { 3306 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3307 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3308 NL80211_TDLS_DISABLE_LINK); 3309 } 3310 3311 if (unlikely(ret && 3312 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3313 &mvm->status))) 3314 ret = 0; 3315 } else { 3316 ret = -EIO; 3317 } 3318 out_unlock: 3319 mutex_unlock(&mvm->mutex); 3320 3321 if (sta->tdls && ret == 0) { 3322 if (old_state == IEEE80211_STA_NOTEXIST && 3323 new_state == IEEE80211_STA_NONE) 3324 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3325 else if (old_state == IEEE80211_STA_NONE && 3326 new_state == IEEE80211_STA_NOTEXIST) 3327 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3328 } 3329 3330 return ret; 3331 } 3332 3333 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3334 { 3335 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3336 3337 mvm->rts_threshold = value; 3338 3339 return 0; 3340 } 3341 3342 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3343 struct ieee80211_vif *vif, 3344 struct ieee80211_sta *sta, u32 changed) 3345 { 3346 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3347 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3348 3349 if (changed & (IEEE80211_RC_BW_CHANGED | 3350 IEEE80211_RC_SUPP_RATES_CHANGED | 3351 IEEE80211_RC_NSS_CHANGED)) 3352 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3353 true); 3354 3355 if (vif->type == NL80211_IFTYPE_STATION && 3356 changed & IEEE80211_RC_NSS_CHANGED) 3357 iwl_mvm_sf_update(mvm, vif, false); 3358 } 3359 3360 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3361 struct ieee80211_vif *vif, 3362 unsigned int link_id, u16 ac, 3363 const struct ieee80211_tx_queue_params *params) 3364 { 3365 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3366 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3367 3368 mvmvif->queue_params[ac] = *params; 3369 3370 /* 3371 * No need to update right away, we'll get BSS_CHANGED_QOS 3372 * The exception is P2P_DEVICE interface which needs immediate update. 3373 */ 3374 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3375 int ret; 3376 3377 mutex_lock(&mvm->mutex); 3378 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3379 mutex_unlock(&mvm->mutex); 3380 return ret; 3381 } 3382 return 0; 3383 } 3384 3385 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3386 struct ieee80211_vif *vif, 3387 struct ieee80211_prep_tx_info *info) 3388 { 3389 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3390 3391 mutex_lock(&mvm->mutex); 3392 iwl_mvm_protect_assoc(mvm, vif, info->duration); 3393 mutex_unlock(&mvm->mutex); 3394 } 3395 3396 static void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 3397 struct ieee80211_vif *vif, 3398 struct ieee80211_prep_tx_info *info) 3399 { 3400 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3401 3402 /* for successful cases (auth/assoc), don't cancel session protection */ 3403 if (info->success) 3404 return; 3405 3406 mutex_lock(&mvm->mutex); 3407 iwl_mvm_stop_session_protection(mvm, vif); 3408 mutex_unlock(&mvm->mutex); 3409 } 3410 3411 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3412 struct ieee80211_vif *vif, 3413 struct cfg80211_sched_scan_request *req, 3414 struct ieee80211_scan_ies *ies) 3415 { 3416 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3417 3418 int ret; 3419 3420 mutex_lock(&mvm->mutex); 3421 3422 if (!vif->cfg.idle) { 3423 ret = -EBUSY; 3424 goto out; 3425 } 3426 3427 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3428 3429 out: 3430 mutex_unlock(&mvm->mutex); 3431 return ret; 3432 } 3433 3434 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3435 struct ieee80211_vif *vif) 3436 { 3437 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3438 int ret; 3439 3440 mutex_lock(&mvm->mutex); 3441 3442 /* Due to a race condition, it's possible that mac80211 asks 3443 * us to stop a sched_scan when it's already stopped. This 3444 * can happen, for instance, if we stopped the scan ourselves, 3445 * called ieee80211_sched_scan_stopped() and the userspace called 3446 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3447 * could run. To handle this, simply return if the scan is 3448 * not running. 3449 */ 3450 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3451 mutex_unlock(&mvm->mutex); 3452 return 0; 3453 } 3454 3455 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3456 mutex_unlock(&mvm->mutex); 3457 iwl_mvm_wait_for_async_handlers(mvm); 3458 3459 return ret; 3460 } 3461 3462 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3463 enum set_key_cmd cmd, 3464 struct ieee80211_vif *vif, 3465 struct ieee80211_sta *sta, 3466 struct ieee80211_key_conf *key) 3467 { 3468 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3469 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3470 struct iwl_mvm_sta *mvmsta = NULL; 3471 struct iwl_mvm_key_pn *ptk_pn; 3472 int keyidx = key->keyidx; 3473 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 3474 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 3475 int ret, i; 3476 u8 key_offset; 3477 3478 if (sta) 3479 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3480 3481 switch (key->cipher) { 3482 case WLAN_CIPHER_SUITE_TKIP: 3483 if (!mvm->trans->trans_cfg->gen2) { 3484 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3485 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3486 } else if (vif->type == NL80211_IFTYPE_STATION) { 3487 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3488 } else { 3489 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3490 return -EOPNOTSUPP; 3491 } 3492 break; 3493 case WLAN_CIPHER_SUITE_CCMP: 3494 case WLAN_CIPHER_SUITE_GCMP: 3495 case WLAN_CIPHER_SUITE_GCMP_256: 3496 if (!iwl_mvm_has_new_tx_api(mvm)) 3497 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3498 break; 3499 case WLAN_CIPHER_SUITE_AES_CMAC: 3500 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3501 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3502 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3503 break; 3504 case WLAN_CIPHER_SUITE_WEP40: 3505 case WLAN_CIPHER_SUITE_WEP104: 3506 if (vif->type == NL80211_IFTYPE_STATION) 3507 break; 3508 if (iwl_mvm_has_new_tx_api(mvm)) 3509 return -EOPNOTSUPP; 3510 /* support HW crypto on TX */ 3511 return 0; 3512 default: 3513 return -EOPNOTSUPP; 3514 } 3515 3516 switch (cmd) { 3517 case SET_KEY: 3518 if (keyidx == 6 || keyidx == 7) 3519 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 3520 key); 3521 3522 if ((vif->type == NL80211_IFTYPE_ADHOC || 3523 vif->type == NL80211_IFTYPE_AP) && !sta) { 3524 /* 3525 * GTK on AP interface is a TX-only key, return 0; 3526 * on IBSS they're per-station and because we're lazy 3527 * we don't support them for RX, so do the same. 3528 * CMAC/GMAC in AP/IBSS modes must be done in software. 3529 */ 3530 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3531 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3532 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3533 ret = -EOPNOTSUPP; 3534 break; 3535 } 3536 3537 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3538 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3539 !iwl_mvm_has_new_tx_api(mvm)) { 3540 key->hw_key_idx = STA_KEY_IDX_INVALID; 3541 ret = 0; 3542 break; 3543 } 3544 3545 if (!mvmvif->ap_ibss_active) { 3546 for (i = 0; 3547 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3548 i++) { 3549 if (!mvmvif->ap_early_keys[i]) { 3550 mvmvif->ap_early_keys[i] = key; 3551 break; 3552 } 3553 } 3554 3555 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3556 ret = -ENOSPC; 3557 else 3558 ret = 0; 3559 3560 break; 3561 } 3562 } 3563 3564 /* During FW restart, in order to restore the state as it was, 3565 * don't try to reprogram keys we previously failed for. 3566 */ 3567 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3568 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3569 IWL_DEBUG_MAC80211(mvm, 3570 "skip invalid idx key programming during restart\n"); 3571 ret = 0; 3572 break; 3573 } 3574 3575 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3576 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3577 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3578 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3579 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3580 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3581 struct ieee80211_key_seq seq; 3582 int tid, q; 3583 3584 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3585 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3586 mvm->trans->num_rx_queues), 3587 GFP_KERNEL); 3588 if (!ptk_pn) { 3589 ret = -ENOMEM; 3590 break; 3591 } 3592 3593 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3594 ieee80211_get_key_rx_seq(key, tid, &seq); 3595 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3596 memcpy(ptk_pn->q[q].pn[tid], 3597 seq.ccmp.pn, 3598 IEEE80211_CCMP_PN_LEN); 3599 } 3600 3601 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3602 } 3603 3604 /* in HW restart reuse the index, otherwise request a new one */ 3605 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3606 key_offset = key->hw_key_idx; 3607 else 3608 key_offset = STA_KEY_IDX_INVALID; 3609 3610 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 3611 mvmsta->pairwise_cipher = key->cipher; 3612 3613 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3614 3615 if (sec_key_ver) 3616 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 3617 else 3618 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3619 3620 if (ret) { 3621 IWL_WARN(mvm, "set key failed\n"); 3622 key->hw_key_idx = STA_KEY_IDX_INVALID; 3623 /* 3624 * can't add key for RX, but we don't need it 3625 * in the device for TX so still return 0, 3626 * unless we have new TX API where we cannot 3627 * put key material into the TX_CMD 3628 */ 3629 if (iwl_mvm_has_new_tx_api(mvm)) 3630 ret = -EOPNOTSUPP; 3631 else 3632 ret = 0; 3633 } 3634 3635 break; 3636 case DISABLE_KEY: 3637 if (keyidx == 6 || keyidx == 7) 3638 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 3639 NULL); 3640 3641 ret = -ENOENT; 3642 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3643 if (mvmvif->ap_early_keys[i] == key) { 3644 mvmvif->ap_early_keys[i] = NULL; 3645 ret = 0; 3646 } 3647 } 3648 3649 /* found in pending list - don't do anything else */ 3650 if (ret == 0) 3651 break; 3652 3653 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3654 ret = 0; 3655 break; 3656 } 3657 3658 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3659 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3660 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3661 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3662 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3663 ptk_pn = rcu_dereference_protected( 3664 mvmsta->ptk_pn[keyidx], 3665 lockdep_is_held(&mvm->mutex)); 3666 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3667 if (ptk_pn) 3668 kfree_rcu(ptk_pn, rcu_head); 3669 } 3670 3671 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3672 if (sec_key_ver) 3673 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 3674 else 3675 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3676 break; 3677 default: 3678 ret = -EINVAL; 3679 } 3680 3681 return ret; 3682 } 3683 3684 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3685 enum set_key_cmd cmd, 3686 struct ieee80211_vif *vif, 3687 struct ieee80211_sta *sta, 3688 struct ieee80211_key_conf *key) 3689 { 3690 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3691 int ret; 3692 3693 mutex_lock(&mvm->mutex); 3694 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3695 mutex_unlock(&mvm->mutex); 3696 3697 return ret; 3698 } 3699 3700 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3701 struct ieee80211_vif *vif, 3702 struct ieee80211_key_conf *keyconf, 3703 struct ieee80211_sta *sta, 3704 u32 iv32, u16 *phase1key) 3705 { 3706 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3707 3708 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3709 return; 3710 3711 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3712 } 3713 3714 3715 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3716 struct iwl_rx_packet *pkt, void *data) 3717 { 3718 struct iwl_mvm *mvm = 3719 container_of(notif_wait, struct iwl_mvm, notif_wait); 3720 struct iwl_hs20_roc_res *resp; 3721 int resp_len = iwl_rx_packet_payload_len(pkt); 3722 struct iwl_mvm_time_event_data *te_data = data; 3723 3724 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3725 return true; 3726 3727 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3728 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3729 return true; 3730 } 3731 3732 resp = (void *)pkt->data; 3733 3734 IWL_DEBUG_TE(mvm, 3735 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3736 resp->status, resp->event_unique_id); 3737 3738 te_data->uid = le32_to_cpu(resp->event_unique_id); 3739 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3740 te_data->uid); 3741 3742 spin_lock_bh(&mvm->time_event_lock); 3743 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3744 spin_unlock_bh(&mvm->time_event_lock); 3745 3746 return true; 3747 } 3748 3749 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3750 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3751 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3752 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3753 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3754 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3755 struct ieee80211_channel *channel, 3756 struct ieee80211_vif *vif, 3757 int duration) 3758 { 3759 int res; 3760 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3761 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3762 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3763 struct iwl_notification_wait wait_time_event; 3764 u32 dtim_interval = vif->bss_conf.dtim_period * 3765 vif->bss_conf.beacon_int; 3766 u32 req_dur, delay; 3767 struct iwl_hs20_roc_req aux_roc_req = { 3768 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3769 .id_and_color = 3770 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3771 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3772 }; 3773 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3774 &aux_roc_req.channel_info); 3775 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3776 3777 /* Set the channel info data */ 3778 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3779 iwl_mvm_phy_band_from_nl80211(channel->band), 3780 PHY_VHT_CHANNEL_MODE20, 3781 0); 3782 3783 /* Set the time and duration */ 3784 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3785 3786 delay = AUX_ROC_MIN_DELAY; 3787 req_dur = MSEC_TO_TU(duration); 3788 3789 /* 3790 * If we are associated we want the delay time to be at least one 3791 * dtim interval so that the FW can wait until after the DTIM and 3792 * then start the time event, this will potentially allow us to 3793 * remain off-channel for the max duration. 3794 * Since we want to use almost a whole dtim interval we would also 3795 * like the delay to be for 2-3 dtim intervals, in case there are 3796 * other time events with higher priority. 3797 */ 3798 if (vif->cfg.assoc) { 3799 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3800 /* We cannot remain off-channel longer than the DTIM interval */ 3801 if (dtim_interval <= req_dur) { 3802 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3803 if (req_dur <= AUX_ROC_MIN_DURATION) 3804 req_dur = dtim_interval - 3805 AUX_ROC_MIN_SAFETY_BUFFER; 3806 } 3807 } 3808 3809 tail->duration = cpu_to_le32(req_dur); 3810 tail->apply_time_max_delay = cpu_to_le32(delay); 3811 3812 IWL_DEBUG_TE(mvm, 3813 "ROC: Requesting to remain on channel %u for %ums\n", 3814 channel->hw_value, req_dur); 3815 IWL_DEBUG_TE(mvm, 3816 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3817 duration, delay, dtim_interval); 3818 3819 /* Set the node address */ 3820 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3821 3822 lockdep_assert_held(&mvm->mutex); 3823 3824 spin_lock_bh(&mvm->time_event_lock); 3825 3826 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3827 spin_unlock_bh(&mvm->time_event_lock); 3828 return -EIO; 3829 } 3830 3831 te_data->vif = vif; 3832 te_data->duration = duration; 3833 te_data->id = HOT_SPOT_CMD; 3834 3835 spin_unlock_bh(&mvm->time_event_lock); 3836 3837 /* 3838 * Use a notification wait, which really just processes the 3839 * command response and doesn't wait for anything, in order 3840 * to be able to process the response and get the UID inside 3841 * the RX path. Using CMD_WANT_SKB doesn't work because it 3842 * stores the buffer and then wakes up this thread, by which 3843 * time another notification (that the time event started) 3844 * might already be processed unsuccessfully. 3845 */ 3846 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3847 time_event_response, 3848 ARRAY_SIZE(time_event_response), 3849 iwl_mvm_rx_aux_roc, te_data); 3850 3851 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3852 &aux_roc_req); 3853 3854 if (res) { 3855 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3856 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3857 goto out_clear_te; 3858 } 3859 3860 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3861 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3862 /* should never fail */ 3863 WARN_ON_ONCE(res); 3864 3865 if (res) { 3866 out_clear_te: 3867 spin_lock_bh(&mvm->time_event_lock); 3868 iwl_mvm_te_clear_data(mvm, te_data); 3869 spin_unlock_bh(&mvm->time_event_lock); 3870 } 3871 3872 return res; 3873 } 3874 3875 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3876 struct ieee80211_vif *vif, 3877 struct ieee80211_channel *channel, 3878 int duration, 3879 enum ieee80211_roc_type type) 3880 { 3881 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3882 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3883 struct cfg80211_chan_def chandef; 3884 struct iwl_mvm_phy_ctxt *phy_ctxt; 3885 bool band_change_removal; 3886 int ret, i; 3887 3888 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3889 duration, type); 3890 3891 /* 3892 * Flush the done work, just in case it's still pending, so that 3893 * the work it does can complete and we can accept new frames. 3894 */ 3895 flush_work(&mvm->roc_done_wk); 3896 3897 mutex_lock(&mvm->mutex); 3898 3899 switch (vif->type) { 3900 case NL80211_IFTYPE_STATION: 3901 if (fw_has_capa(&mvm->fw->ucode_capa, 3902 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3903 /* Use aux roc framework (HS20) */ 3904 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) { 3905 u32 lmac_id; 3906 3907 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, 3908 channel->band); 3909 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 3910 if (WARN(ret, 3911 "Failed to allocate aux station")) 3912 goto out_unlock; 3913 } 3914 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3915 vif, duration); 3916 goto out_unlock; 3917 } 3918 IWL_ERR(mvm, "hotspot not supported\n"); 3919 ret = -EINVAL; 3920 goto out_unlock; 3921 case NL80211_IFTYPE_P2P_DEVICE: 3922 /* handle below */ 3923 break; 3924 default: 3925 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3926 ret = -EINVAL; 3927 goto out_unlock; 3928 } 3929 3930 for (i = 0; i < NUM_PHY_CTX; i++) { 3931 phy_ctxt = &mvm->phy_ctxts[i]; 3932 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3933 continue; 3934 3935 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3936 /* 3937 * Unbind the P2P_DEVICE from the current PHY context, 3938 * and if the PHY context is not used remove it. 3939 */ 3940 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3941 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3942 goto out_unlock; 3943 3944 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3945 3946 /* Bind the P2P_DEVICE to the current PHY Context */ 3947 mvmvif->phy_ctxt = phy_ctxt; 3948 3949 ret = iwl_mvm_binding_add_vif(mvm, vif); 3950 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3951 goto out_unlock; 3952 3953 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3954 goto schedule_time_event; 3955 } 3956 } 3957 3958 /* Need to update the PHY context only if the ROC channel changed */ 3959 if (channel == mvmvif->phy_ctxt->channel) 3960 goto schedule_time_event; 3961 3962 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3963 3964 /* 3965 * Check if the remain-on-channel is on a different band and that 3966 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 3967 * so, we'll need to release and then re-configure here, since we 3968 * must not remove a PHY context that's part of a binding. 3969 */ 3970 band_change_removal = 3971 fw_has_capa(&mvm->fw->ucode_capa, 3972 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 3973 mvmvif->phy_ctxt->channel->band != chandef.chan->band; 3974 3975 if (mvmvif->phy_ctxt->ref == 1 && !band_change_removal) { 3976 /* 3977 * Change the PHY context configuration as it is currently 3978 * referenced only by the P2P Device MAC (and we can modify it) 3979 */ 3980 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3981 &chandef, 1, 1); 3982 if (ret) 3983 goto out_unlock; 3984 } else { 3985 /* 3986 * The PHY context is shared with other MACs (or we're trying to 3987 * switch bands), so remove the P2P Device from the binding, 3988 * allocate an new PHY context and create a new binding. 3989 */ 3990 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3991 if (!phy_ctxt) { 3992 ret = -ENOSPC; 3993 goto out_unlock; 3994 } 3995 3996 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3997 1, 1); 3998 if (ret) { 3999 IWL_ERR(mvm, "Failed to change PHY context\n"); 4000 goto out_unlock; 4001 } 4002 4003 /* Unbind the P2P_DEVICE from the current PHY context */ 4004 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4005 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4006 goto out_unlock; 4007 4008 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4009 4010 /* Bind the P2P_DEVICE to the new allocated PHY context */ 4011 mvmvif->phy_ctxt = phy_ctxt; 4012 4013 ret = iwl_mvm_binding_add_vif(mvm, vif); 4014 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4015 goto out_unlock; 4016 4017 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4018 } 4019 4020 schedule_time_event: 4021 /* Schedule the time events */ 4022 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4023 4024 out_unlock: 4025 mutex_unlock(&mvm->mutex); 4026 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4027 return ret; 4028 } 4029 4030 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4031 struct ieee80211_vif *vif) 4032 { 4033 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4034 4035 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4036 4037 mutex_lock(&mvm->mutex); 4038 iwl_mvm_stop_roc(mvm, vif); 4039 mutex_unlock(&mvm->mutex); 4040 4041 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4042 return 0; 4043 } 4044 4045 struct iwl_mvm_ftm_responder_iter_data { 4046 bool responder; 4047 struct ieee80211_chanctx_conf *ctx; 4048 }; 4049 4050 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4051 struct ieee80211_vif *vif) 4052 { 4053 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4054 4055 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4056 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4057 data->responder = true; 4058 } 4059 4060 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4061 struct ieee80211_chanctx_conf *ctx) 4062 { 4063 struct iwl_mvm_ftm_responder_iter_data data = { 4064 .responder = false, 4065 .ctx = ctx, 4066 }; 4067 4068 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4069 IEEE80211_IFACE_ITER_NORMAL, 4070 iwl_mvm_ftm_responder_chanctx_iter, 4071 &data); 4072 return data.responder; 4073 } 4074 4075 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4076 struct ieee80211_chanctx_conf *ctx) 4077 { 4078 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4079 struct iwl_mvm_phy_ctxt *phy_ctxt; 4080 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4081 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4082 int ret; 4083 4084 lockdep_assert_held(&mvm->mutex); 4085 4086 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4087 4088 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4089 if (!phy_ctxt) { 4090 ret = -ENOSPC; 4091 goto out; 4092 } 4093 4094 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4095 ctx->rx_chains_static, 4096 ctx->rx_chains_dynamic); 4097 if (ret) { 4098 IWL_ERR(mvm, "Failed to add PHY context\n"); 4099 goto out; 4100 } 4101 4102 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4103 *phy_ctxt_id = phy_ctxt->id; 4104 out: 4105 return ret; 4106 } 4107 4108 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4109 struct ieee80211_chanctx_conf *ctx) 4110 { 4111 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4112 int ret; 4113 4114 mutex_lock(&mvm->mutex); 4115 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4116 mutex_unlock(&mvm->mutex); 4117 4118 return ret; 4119 } 4120 4121 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4122 struct ieee80211_chanctx_conf *ctx) 4123 { 4124 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4125 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4126 4127 lockdep_assert_held(&mvm->mutex); 4128 4129 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4130 } 4131 4132 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4133 struct ieee80211_chanctx_conf *ctx) 4134 { 4135 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4136 4137 mutex_lock(&mvm->mutex); 4138 __iwl_mvm_remove_chanctx(mvm, ctx); 4139 mutex_unlock(&mvm->mutex); 4140 } 4141 4142 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4143 struct ieee80211_chanctx_conf *ctx, 4144 u32 changed) 4145 { 4146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4147 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4148 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4149 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4150 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4151 4152 if (WARN_ONCE((phy_ctxt->ref > 1) && 4153 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4154 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4155 IEEE80211_CHANCTX_CHANGE_RADAR | 4156 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4157 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4158 phy_ctxt->ref, changed)) 4159 return; 4160 4161 mutex_lock(&mvm->mutex); 4162 4163 /* we are only changing the min_width, may be a noop */ 4164 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4165 if (phy_ctxt->width == def->width) 4166 goto out_unlock; 4167 4168 /* we are just toggling between 20_NOHT and 20 */ 4169 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4170 def->width <= NL80211_CHAN_WIDTH_20) 4171 goto out_unlock; 4172 } 4173 4174 iwl_mvm_bt_coex_vif_change(mvm); 4175 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4176 ctx->rx_chains_static, 4177 ctx->rx_chains_dynamic); 4178 4179 out_unlock: 4180 mutex_unlock(&mvm->mutex); 4181 } 4182 4183 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4184 struct ieee80211_vif *vif, 4185 struct ieee80211_chanctx_conf *ctx, 4186 bool switching_chanctx) 4187 { 4188 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4189 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4190 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4191 int ret; 4192 4193 lockdep_assert_held(&mvm->mutex); 4194 4195 mvmvif->phy_ctxt = phy_ctxt; 4196 4197 switch (vif->type) { 4198 case NL80211_IFTYPE_AP: 4199 /* only needed if we're switching chanctx (i.e. during CSA) */ 4200 if (switching_chanctx) { 4201 mvmvif->ap_ibss_active = true; 4202 break; 4203 } 4204 fallthrough; 4205 case NL80211_IFTYPE_ADHOC: 4206 /* 4207 * The AP binding flow is handled as part of the start_ap flow 4208 * (in bss_info_changed), similarly for IBSS. 4209 */ 4210 ret = 0; 4211 goto out; 4212 case NL80211_IFTYPE_STATION: 4213 mvmvif->csa_bcn_pending = false; 4214 break; 4215 case NL80211_IFTYPE_MONITOR: 4216 /* always disable PS when a monitor interface is active */ 4217 mvmvif->ps_disabled = true; 4218 break; 4219 default: 4220 ret = -EINVAL; 4221 goto out; 4222 } 4223 4224 ret = iwl_mvm_binding_add_vif(mvm, vif); 4225 if (ret) 4226 goto out; 4227 4228 /* 4229 * Power state must be updated before quotas, 4230 * otherwise fw will complain. 4231 */ 4232 iwl_mvm_power_update_mac(mvm); 4233 4234 /* Setting the quota at this stage is only required for monitor 4235 * interfaces. For the other types, the bss_info changed flow 4236 * will handle quota settings. 4237 */ 4238 if (vif->type == NL80211_IFTYPE_MONITOR) { 4239 mvmvif->monitor_active = true; 4240 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4241 if (ret) 4242 goto out_remove_binding; 4243 4244 ret = iwl_mvm_add_snif_sta(mvm, vif); 4245 if (ret) 4246 goto out_remove_binding; 4247 4248 } 4249 4250 /* Handle binding during CSA */ 4251 if (vif->type == NL80211_IFTYPE_AP) { 4252 iwl_mvm_update_quotas(mvm, false, NULL); 4253 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4254 } 4255 4256 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4257 mvmvif->csa_bcn_pending = true; 4258 4259 if (!fw_has_capa(&mvm->fw->ucode_capa, 4260 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4261 u32 duration = 3 * vif->bss_conf.beacon_int; 4262 4263 /* Protect the session to make sure we hear the first 4264 * beacon on the new channel. 4265 */ 4266 iwl_mvm_protect_session(mvm, vif, duration, duration, 4267 vif->bss_conf.beacon_int / 2, 4268 true); 4269 } 4270 4271 iwl_mvm_update_quotas(mvm, false, NULL); 4272 } 4273 4274 goto out; 4275 4276 out_remove_binding: 4277 iwl_mvm_binding_remove_vif(mvm, vif); 4278 iwl_mvm_power_update_mac(mvm); 4279 out: 4280 if (ret) 4281 mvmvif->phy_ctxt = NULL; 4282 return ret; 4283 } 4284 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4285 struct ieee80211_vif *vif, 4286 struct ieee80211_bss_conf *link_conf, 4287 struct ieee80211_chanctx_conf *ctx) 4288 { 4289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4290 int ret; 4291 4292 mutex_lock(&mvm->mutex); 4293 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4294 mutex_unlock(&mvm->mutex); 4295 4296 return ret; 4297 } 4298 4299 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4300 struct ieee80211_vif *vif, 4301 struct ieee80211_chanctx_conf *ctx, 4302 bool switching_chanctx) 4303 { 4304 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4305 struct ieee80211_vif *disabled_vif = NULL; 4306 4307 lockdep_assert_held(&mvm->mutex); 4308 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4309 4310 switch (vif->type) { 4311 case NL80211_IFTYPE_ADHOC: 4312 goto out; 4313 case NL80211_IFTYPE_MONITOR: 4314 mvmvif->monitor_active = false; 4315 mvmvif->ps_disabled = false; 4316 iwl_mvm_rm_snif_sta(mvm, vif); 4317 break; 4318 case NL80211_IFTYPE_AP: 4319 /* This part is triggered only during CSA */ 4320 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4321 goto out; 4322 4323 mvmvif->csa_countdown = false; 4324 4325 /* Set CS bit on all the stations */ 4326 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4327 4328 /* Save blocked iface, the timeout is set on the next beacon */ 4329 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4330 4331 mvmvif->ap_ibss_active = false; 4332 break; 4333 case NL80211_IFTYPE_STATION: 4334 if (!switching_chanctx) 4335 break; 4336 4337 disabled_vif = vif; 4338 4339 if (!fw_has_capa(&mvm->fw->ucode_capa, 4340 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4341 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4342 break; 4343 default: 4344 break; 4345 } 4346 4347 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4348 iwl_mvm_binding_remove_vif(mvm, vif); 4349 4350 out: 4351 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 4352 switching_chanctx) 4353 return; 4354 mvmvif->phy_ctxt = NULL; 4355 iwl_mvm_power_update_mac(mvm); 4356 } 4357 4358 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4359 struct ieee80211_vif *vif, 4360 struct ieee80211_bss_conf *link_conf, 4361 struct ieee80211_chanctx_conf *ctx) 4362 { 4363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4364 4365 mutex_lock(&mvm->mutex); 4366 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4367 mutex_unlock(&mvm->mutex); 4368 } 4369 4370 static int 4371 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4372 struct ieee80211_vif_chanctx_switch *vifs) 4373 { 4374 int ret; 4375 4376 mutex_lock(&mvm->mutex); 4377 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4378 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4379 4380 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4381 if (ret) { 4382 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4383 goto out_reassign; 4384 } 4385 4386 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4387 true); 4388 if (ret) { 4389 IWL_ERR(mvm, 4390 "failed to assign new_ctx during channel switch\n"); 4391 goto out_remove; 4392 } 4393 4394 /* we don't support TDLS during DCM - can be caused by channel switch */ 4395 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4396 iwl_mvm_teardown_tdls_peers(mvm); 4397 4398 goto out; 4399 4400 out_remove: 4401 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4402 4403 out_reassign: 4404 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4405 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4406 goto out_restart; 4407 } 4408 4409 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4410 true)) { 4411 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4412 goto out_restart; 4413 } 4414 4415 goto out; 4416 4417 out_restart: 4418 /* things keep failing, better restart the hw */ 4419 iwl_mvm_nic_restart(mvm, false); 4420 4421 out: 4422 mutex_unlock(&mvm->mutex); 4423 4424 return ret; 4425 } 4426 4427 static int 4428 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4429 struct ieee80211_vif_chanctx_switch *vifs) 4430 { 4431 int ret; 4432 4433 mutex_lock(&mvm->mutex); 4434 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4435 4436 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4437 true); 4438 if (ret) { 4439 IWL_ERR(mvm, 4440 "failed to assign new_ctx during channel switch\n"); 4441 goto out_reassign; 4442 } 4443 4444 goto out; 4445 4446 out_reassign: 4447 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4448 true)) { 4449 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4450 goto out_restart; 4451 } 4452 4453 goto out; 4454 4455 out_restart: 4456 /* things keep failing, better restart the hw */ 4457 iwl_mvm_nic_restart(mvm, false); 4458 4459 out: 4460 mutex_unlock(&mvm->mutex); 4461 4462 return ret; 4463 } 4464 4465 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4466 struct ieee80211_vif_chanctx_switch *vifs, 4467 int n_vifs, 4468 enum ieee80211_chanctx_switch_mode mode) 4469 { 4470 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4471 int ret; 4472 4473 /* we only support a single-vif right now */ 4474 if (n_vifs > 1) 4475 return -EOPNOTSUPP; 4476 4477 switch (mode) { 4478 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4479 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4480 break; 4481 case CHANCTX_SWMODE_REASSIGN_VIF: 4482 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4483 break; 4484 default: 4485 ret = -EOPNOTSUPP; 4486 break; 4487 } 4488 4489 return ret; 4490 } 4491 4492 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4493 { 4494 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4495 4496 return mvm->ibss_manager; 4497 } 4498 4499 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4500 struct ieee80211_sta *sta, 4501 bool set) 4502 { 4503 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4504 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4505 4506 if (!mvm_sta || !mvm_sta->vif) { 4507 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4508 return -EINVAL; 4509 } 4510 4511 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4512 } 4513 4514 #ifdef CONFIG_NL80211_TESTMODE 4515 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4516 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4517 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4518 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4519 }; 4520 4521 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4522 struct ieee80211_vif *vif, 4523 void *data, int len) 4524 { 4525 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4526 int err; 4527 u32 noa_duration; 4528 4529 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4530 iwl_mvm_tm_policy, NULL); 4531 if (err) 4532 return err; 4533 4534 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4535 return -EINVAL; 4536 4537 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4538 case IWL_MVM_TM_CMD_SET_NOA: 4539 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4540 !vif->bss_conf.enable_beacon || 4541 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4542 return -EINVAL; 4543 4544 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4545 if (noa_duration >= vif->bss_conf.beacon_int) 4546 return -EINVAL; 4547 4548 mvm->noa_duration = noa_duration; 4549 mvm->noa_vif = vif; 4550 4551 return iwl_mvm_update_quotas(mvm, true, NULL); 4552 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4553 /* must be associated client vif - ignore authorized */ 4554 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4555 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 4556 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4557 return -EINVAL; 4558 4559 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4560 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4561 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4562 } 4563 4564 return -EOPNOTSUPP; 4565 } 4566 4567 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4568 struct ieee80211_vif *vif, 4569 void *data, int len) 4570 { 4571 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4572 int err; 4573 4574 mutex_lock(&mvm->mutex); 4575 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4576 mutex_unlock(&mvm->mutex); 4577 4578 return err; 4579 } 4580 #endif 4581 4582 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4583 struct ieee80211_vif *vif, 4584 struct ieee80211_channel_switch *chsw) 4585 { 4586 /* By implementing this operation, we prevent mac80211 from 4587 * starting its own channel switch timer, so that we can call 4588 * ieee80211_chswitch_done() ourselves at the right time 4589 * (which is when the absence time event starts). 4590 */ 4591 4592 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4593 "dummy channel switch op\n"); 4594 } 4595 4596 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4597 struct ieee80211_vif *vif, 4598 struct ieee80211_channel_switch *chsw) 4599 { 4600 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4601 struct iwl_chan_switch_te_cmd cmd = { 4602 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4603 mvmvif->color)), 4604 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4605 .tsf = cpu_to_le32(chsw->timestamp), 4606 .cs_count = chsw->count, 4607 .cs_mode = chsw->block_tx, 4608 }; 4609 4610 lockdep_assert_held(&mvm->mutex); 4611 4612 if (chsw->delay) 4613 cmd.cs_delayed_bcn_count = 4614 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4615 4616 return iwl_mvm_send_cmd_pdu(mvm, 4617 WIDE_ID(MAC_CONF_GROUP, 4618 CHANNEL_SWITCH_TIME_EVENT_CMD), 4619 0, sizeof(cmd), &cmd); 4620 } 4621 4622 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4623 struct ieee80211_vif *vif, 4624 struct ieee80211_channel_switch *chsw) 4625 { 4626 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4627 u32 apply_time; 4628 4629 /* Schedule the time event to a bit before beacon 1, 4630 * to make sure we're in the new channel when the 4631 * GO/AP arrives. In case count <= 1 immediately schedule the 4632 * TE (this might result with some packet loss or connection 4633 * loss). 4634 */ 4635 if (chsw->count <= 1) 4636 apply_time = 0; 4637 else 4638 apply_time = chsw->device_timestamp + 4639 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4640 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4641 4642 if (chsw->block_tx) 4643 iwl_mvm_csa_client_absent(mvm, vif); 4644 4645 if (mvmvif->bf_data.bf_enabled) { 4646 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4647 4648 if (ret) 4649 return ret; 4650 } 4651 4652 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4653 apply_time); 4654 4655 return 0; 4656 } 4657 4658 #define IWL_MAX_CSA_BLOCK_TX 1500 4659 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4660 struct ieee80211_vif *vif, 4661 struct ieee80211_channel_switch *chsw) 4662 { 4663 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4664 struct ieee80211_vif *csa_vif; 4665 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4666 int ret; 4667 4668 mutex_lock(&mvm->mutex); 4669 4670 mvmvif->csa_failed = false; 4671 4672 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4673 chsw->chandef.center_freq1); 4674 4675 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4676 ieee80211_vif_to_wdev(vif), 4677 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4678 4679 switch (vif->type) { 4680 case NL80211_IFTYPE_AP: 4681 csa_vif = 4682 rcu_dereference_protected(mvm->csa_vif, 4683 lockdep_is_held(&mvm->mutex)); 4684 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 4685 "Another CSA is already in progress")) { 4686 ret = -EBUSY; 4687 goto out_unlock; 4688 } 4689 4690 /* we still didn't unblock tx. prevent new CS meanwhile */ 4691 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4692 lockdep_is_held(&mvm->mutex))) { 4693 ret = -EBUSY; 4694 goto out_unlock; 4695 } 4696 4697 rcu_assign_pointer(mvm->csa_vif, vif); 4698 4699 if (WARN_ONCE(mvmvif->csa_countdown, 4700 "Previous CSA countdown didn't complete")) { 4701 ret = -EBUSY; 4702 goto out_unlock; 4703 } 4704 4705 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4706 4707 break; 4708 case NL80211_IFTYPE_STATION: 4709 /* 4710 * In the new flow FW is in charge of timing the switch so there 4711 * is no need for all of this 4712 */ 4713 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4714 CHANNEL_SWITCH_ERROR_NOTIF, 4715 0)) 4716 break; 4717 4718 /* 4719 * We haven't configured the firmware to be associated yet since 4720 * we don't know the dtim period. In this case, the firmware can't 4721 * track the beacons. 4722 */ 4723 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 4724 ret = -EBUSY; 4725 goto out_unlock; 4726 } 4727 4728 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 4729 schedule_delayed_work(&mvmvif->csa_work, 0); 4730 4731 if (chsw->block_tx) { 4732 /* 4733 * In case of undetermined / long time with immediate 4734 * quiet monitor status to gracefully disconnect 4735 */ 4736 if (!chsw->count || 4737 chsw->count * vif->bss_conf.beacon_int > 4738 IWL_MAX_CSA_BLOCK_TX) 4739 schedule_delayed_work(&mvmvif->csa_work, 4740 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4741 } 4742 4743 if (!fw_has_capa(&mvm->fw->ucode_capa, 4744 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4745 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4746 if (ret) 4747 goto out_unlock; 4748 } else { 4749 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4750 } 4751 4752 mvmvif->csa_count = chsw->count; 4753 mvmvif->csa_misbehave = false; 4754 break; 4755 default: 4756 break; 4757 } 4758 4759 mvmvif->ps_disabled = true; 4760 4761 ret = iwl_mvm_power_update_ps(mvm); 4762 if (ret) 4763 goto out_unlock; 4764 4765 /* we won't be on this channel any longer */ 4766 iwl_mvm_teardown_tdls_peers(mvm); 4767 4768 out_unlock: 4769 mutex_unlock(&mvm->mutex); 4770 4771 return ret; 4772 } 4773 4774 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4775 struct ieee80211_vif *vif, 4776 struct ieee80211_channel_switch *chsw) 4777 { 4778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4779 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4780 struct iwl_chan_switch_te_cmd cmd = { 4781 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4782 mvmvif->color)), 4783 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4784 .tsf = cpu_to_le32(chsw->timestamp), 4785 .cs_count = chsw->count, 4786 .cs_mode = chsw->block_tx, 4787 }; 4788 4789 /* 4790 * In the new flow FW is in charge of timing the switch so there is no 4791 * need for all of this 4792 */ 4793 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4794 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 4795 return; 4796 4797 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4798 return; 4799 4800 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 4801 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 4802 4803 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4804 if (mvmvif->csa_misbehave) { 4805 /* Second time, give up on this AP*/ 4806 iwl_mvm_abort_channel_switch(hw, vif); 4807 ieee80211_chswitch_done(vif, false); 4808 mvmvif->csa_misbehave = false; 4809 return; 4810 } 4811 mvmvif->csa_misbehave = true; 4812 } 4813 mvmvif->csa_count = chsw->count; 4814 4815 mutex_lock(&mvm->mutex); 4816 if (mvmvif->csa_failed) 4817 goto out_unlock; 4818 4819 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4820 WIDE_ID(MAC_CONF_GROUP, 4821 CHANNEL_SWITCH_TIME_EVENT_CMD), 4822 0, sizeof(cmd), &cmd)); 4823 out_unlock: 4824 mutex_unlock(&mvm->mutex); 4825 } 4826 4827 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4828 { 4829 int i; 4830 4831 if (!iwl_mvm_has_new_tx_api(mvm)) { 4832 if (drop) { 4833 mutex_lock(&mvm->mutex); 4834 iwl_mvm_flush_tx_path(mvm, 4835 iwl_mvm_flushable_queues(mvm) & queues); 4836 mutex_unlock(&mvm->mutex); 4837 } else { 4838 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4839 } 4840 return; 4841 } 4842 4843 mutex_lock(&mvm->mutex); 4844 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4845 struct ieee80211_sta *sta; 4846 4847 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4848 lockdep_is_held(&mvm->mutex)); 4849 if (IS_ERR_OR_NULL(sta)) 4850 continue; 4851 4852 if (drop) 4853 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 4854 else 4855 iwl_mvm_wait_sta_queues_empty(mvm, 4856 iwl_mvm_sta_from_mac80211(sta)); 4857 } 4858 mutex_unlock(&mvm->mutex); 4859 } 4860 4861 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4862 struct ieee80211_vif *vif, u32 queues, bool drop) 4863 { 4864 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4865 struct iwl_mvm_vif *mvmvif; 4866 struct iwl_mvm_sta *mvmsta; 4867 struct ieee80211_sta *sta; 4868 int i; 4869 u32 msk = 0; 4870 4871 if (!vif) { 4872 iwl_mvm_flush_no_vif(mvm, queues, drop); 4873 return; 4874 } 4875 4876 if (vif->type != NL80211_IFTYPE_STATION) 4877 return; 4878 4879 /* Make sure we're done with the deferred traffic before flushing */ 4880 flush_work(&mvm->add_stream_wk); 4881 4882 mutex_lock(&mvm->mutex); 4883 mvmvif = iwl_mvm_vif_from_mac80211(vif); 4884 4885 /* flush the AP-station and all TDLS peers */ 4886 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4887 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4888 lockdep_is_held(&mvm->mutex)); 4889 if (IS_ERR_OR_NULL(sta)) 4890 continue; 4891 4892 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4893 if (mvmsta->vif != vif) 4894 continue; 4895 4896 /* make sure only TDLS peers or the AP are flushed */ 4897 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4898 4899 if (drop) { 4900 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 4901 IWL_ERR(mvm, "flush request fail\n"); 4902 } else { 4903 msk |= mvmsta->tfd_queue_msk; 4904 if (iwl_mvm_has_new_tx_api(mvm)) 4905 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4906 } 4907 } 4908 4909 mutex_unlock(&mvm->mutex); 4910 4911 /* this can take a while, and we may need/want other operations 4912 * to succeed while doing this, so do it without the mutex held 4913 */ 4914 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4915 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4916 } 4917 4918 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4919 struct survey_info *survey) 4920 { 4921 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4922 int ret; 4923 4924 memset(survey, 0, sizeof(*survey)); 4925 4926 /* only support global statistics right now */ 4927 if (idx != 0) 4928 return -ENOENT; 4929 4930 if (!fw_has_capa(&mvm->fw->ucode_capa, 4931 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4932 return -ENOENT; 4933 4934 mutex_lock(&mvm->mutex); 4935 4936 if (iwl_mvm_firmware_running(mvm)) { 4937 ret = iwl_mvm_request_statistics(mvm, false); 4938 if (ret) 4939 goto out; 4940 } 4941 4942 survey->filled = SURVEY_INFO_TIME | 4943 SURVEY_INFO_TIME_RX | 4944 SURVEY_INFO_TIME_TX | 4945 SURVEY_INFO_TIME_SCAN; 4946 survey->time = mvm->accu_radio_stats.on_time_rf + 4947 mvm->radio_stats.on_time_rf; 4948 do_div(survey->time, USEC_PER_MSEC); 4949 4950 survey->time_rx = mvm->accu_radio_stats.rx_time + 4951 mvm->radio_stats.rx_time; 4952 do_div(survey->time_rx, USEC_PER_MSEC); 4953 4954 survey->time_tx = mvm->accu_radio_stats.tx_time + 4955 mvm->radio_stats.tx_time; 4956 do_div(survey->time_tx, USEC_PER_MSEC); 4957 4958 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4959 mvm->radio_stats.on_time_scan; 4960 do_div(survey->time_scan, USEC_PER_MSEC); 4961 4962 ret = 0; 4963 out: 4964 mutex_unlock(&mvm->mutex); 4965 return ret; 4966 } 4967 4968 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 4969 { 4970 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 4971 u32 gi_ltf; 4972 4973 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 4974 case RATE_MCS_CHAN_WIDTH_20: 4975 rinfo->bw = RATE_INFO_BW_20; 4976 break; 4977 case RATE_MCS_CHAN_WIDTH_40: 4978 rinfo->bw = RATE_INFO_BW_40; 4979 break; 4980 case RATE_MCS_CHAN_WIDTH_80: 4981 rinfo->bw = RATE_INFO_BW_80; 4982 break; 4983 case RATE_MCS_CHAN_WIDTH_160: 4984 rinfo->bw = RATE_INFO_BW_160; 4985 break; 4986 } 4987 4988 if (format == RATE_MCS_CCK_MSK || 4989 format == RATE_MCS_LEGACY_OFDM_MSK) { 4990 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 4991 4992 /* add the offset needed to get to the legacy ofdm indices */ 4993 if (format == RATE_MCS_LEGACY_OFDM_MSK) 4994 rate += IWL_FIRST_OFDM_RATE; 4995 4996 switch (rate) { 4997 case IWL_RATE_1M_INDEX: 4998 rinfo->legacy = 10; 4999 break; 5000 case IWL_RATE_2M_INDEX: 5001 rinfo->legacy = 20; 5002 break; 5003 case IWL_RATE_5M_INDEX: 5004 rinfo->legacy = 55; 5005 break; 5006 case IWL_RATE_11M_INDEX: 5007 rinfo->legacy = 110; 5008 break; 5009 case IWL_RATE_6M_INDEX: 5010 rinfo->legacy = 60; 5011 break; 5012 case IWL_RATE_9M_INDEX: 5013 rinfo->legacy = 90; 5014 break; 5015 case IWL_RATE_12M_INDEX: 5016 rinfo->legacy = 120; 5017 break; 5018 case IWL_RATE_18M_INDEX: 5019 rinfo->legacy = 180; 5020 break; 5021 case IWL_RATE_24M_INDEX: 5022 rinfo->legacy = 240; 5023 break; 5024 case IWL_RATE_36M_INDEX: 5025 rinfo->legacy = 360; 5026 break; 5027 case IWL_RATE_48M_INDEX: 5028 rinfo->legacy = 480; 5029 break; 5030 case IWL_RATE_54M_INDEX: 5031 rinfo->legacy = 540; 5032 } 5033 return; 5034 } 5035 5036 rinfo->nss = u32_get_bits(rate_n_flags, 5037 RATE_MCS_NSS_MSK) + 1; 5038 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5039 RATE_HT_MCS_INDEX(rate_n_flags) : 5040 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5041 5042 if (rate_n_flags & RATE_MCS_SGI_MSK) 5043 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5044 5045 switch (format) { 5046 case RATE_MCS_HE_MSK: 5047 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5048 5049 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5050 5051 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5052 rinfo->bw = RATE_INFO_BW_HE_RU; 5053 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5054 } 5055 5056 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5057 case RATE_MCS_HE_TYPE_SU: 5058 case RATE_MCS_HE_TYPE_EXT_SU: 5059 if (gi_ltf == 0 || gi_ltf == 1) 5060 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5061 else if (gi_ltf == 2) 5062 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5063 else if (gi_ltf == 3) 5064 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5065 else 5066 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5067 break; 5068 case RATE_MCS_HE_TYPE_MU: 5069 if (gi_ltf == 0 || gi_ltf == 1) 5070 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5071 else if (gi_ltf == 2) 5072 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5073 else 5074 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5075 break; 5076 case RATE_MCS_HE_TYPE_TRIG: 5077 if (gi_ltf == 0 || gi_ltf == 1) 5078 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5079 else 5080 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5081 break; 5082 } 5083 5084 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5085 rinfo->he_dcm = 1; 5086 break; 5087 case RATE_MCS_HT_MSK: 5088 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5089 break; 5090 case RATE_MCS_VHT_MSK: 5091 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5092 break; 5093 } 5094 } 5095 5096 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5097 struct ieee80211_vif *vif, 5098 struct ieee80211_sta *sta, 5099 struct station_info *sinfo) 5100 { 5101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5102 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5103 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5104 5105 if (mvmsta->avg_energy) { 5106 sinfo->signal_avg = -(s8)mvmsta->avg_energy; 5107 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5108 } 5109 5110 if (iwl_mvm_has_tlc_offload(mvm)) { 5111 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 5112 5113 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5114 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5115 } 5116 5117 /* if beacon filtering isn't on mac80211 does it anyway */ 5118 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5119 return; 5120 5121 if (!vif->cfg.assoc) 5122 return; 5123 5124 mutex_lock(&mvm->mutex); 5125 5126 if (mvmvif->ap_sta_id != mvmsta->sta_id) 5127 goto unlock; 5128 5129 if (iwl_mvm_request_statistics(mvm, false)) 5130 goto unlock; 5131 5132 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 5133 mvmvif->beacon_stats.accu_num_beacons; 5134 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5135 if (mvmvif->beacon_stats.avg_signal) { 5136 /* firmware only reports a value after RXing a few beacons */ 5137 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 5138 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5139 } 5140 unlock: 5141 mutex_unlock(&mvm->mutex); 5142 } 5143 5144 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5145 struct ieee80211_vif *vif, 5146 const struct ieee80211_mlme_event *mlme) 5147 { 5148 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5149 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5150 iwl_dbg_tlv_time_point(&mvm->fwrt, 5151 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5152 NULL); 5153 return; 5154 } 5155 5156 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5157 iwl_dbg_tlv_time_point(&mvm->fwrt, 5158 IWL_FW_INI_TIME_POINT_DEASSOC, 5159 NULL); 5160 return; 5161 } 5162 } 5163 5164 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5165 struct ieee80211_vif *vif, 5166 const struct ieee80211_event *event) 5167 { 5168 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5169 do { \ 5170 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5171 break; \ 5172 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5173 } while (0) 5174 5175 struct iwl_fw_dbg_trigger_tlv *trig; 5176 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5177 5178 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5179 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5180 return; 5181 } 5182 5183 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5184 FW_DBG_TRIGGER_MLME); 5185 if (!trig) 5186 return; 5187 5188 trig_mlme = (void *)trig->data; 5189 5190 if (event->u.mlme.data == ASSOC_EVENT) { 5191 if (event->u.mlme.status == MLME_DENIED) 5192 CHECK_MLME_TRIGGER(stop_assoc_denied, 5193 "DENIED ASSOC: reason %d", 5194 event->u.mlme.reason); 5195 else if (event->u.mlme.status == MLME_TIMEOUT) 5196 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5197 "ASSOC TIMEOUT"); 5198 } else if (event->u.mlme.data == AUTH_EVENT) { 5199 if (event->u.mlme.status == MLME_DENIED) 5200 CHECK_MLME_TRIGGER(stop_auth_denied, 5201 "DENIED AUTH: reason %d", 5202 event->u.mlme.reason); 5203 else if (event->u.mlme.status == MLME_TIMEOUT) 5204 CHECK_MLME_TRIGGER(stop_auth_timeout, 5205 "AUTH TIMEOUT"); 5206 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5207 CHECK_MLME_TRIGGER(stop_rx_deauth, 5208 "DEAUTH RX %d", event->u.mlme.reason); 5209 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5210 CHECK_MLME_TRIGGER(stop_tx_deauth, 5211 "DEAUTH TX %d", event->u.mlme.reason); 5212 } 5213 #undef CHECK_MLME_TRIGGER 5214 } 5215 5216 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5217 struct ieee80211_vif *vif, 5218 const struct ieee80211_event *event) 5219 { 5220 struct iwl_fw_dbg_trigger_tlv *trig; 5221 struct iwl_fw_dbg_trigger_ba *ba_trig; 5222 5223 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5224 FW_DBG_TRIGGER_BA); 5225 if (!trig) 5226 return; 5227 5228 ba_trig = (void *)trig->data; 5229 5230 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5231 return; 5232 5233 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5234 "BAR received from %pM, tid %d, ssn %d", 5235 event->u.ba.sta->addr, event->u.ba.tid, 5236 event->u.ba.ssn); 5237 } 5238 5239 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5240 struct ieee80211_vif *vif, 5241 const struct ieee80211_event *event) 5242 { 5243 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5244 5245 switch (event->type) { 5246 case MLME_EVENT: 5247 iwl_mvm_event_mlme_callback(mvm, vif, event); 5248 break; 5249 case BAR_RX_EVENT: 5250 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5251 break; 5252 case BA_FRAME_TIMEOUT: 5253 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5254 event->u.ba.tid); 5255 break; 5256 default: 5257 break; 5258 } 5259 } 5260 5261 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5262 enum iwl_mvm_rxq_notif_type type, 5263 bool sync, 5264 const void *data, u32 size) 5265 { 5266 struct { 5267 struct iwl_rxq_sync_cmd cmd; 5268 struct iwl_mvm_internal_rxq_notif notif; 5269 } __packed cmd = { 5270 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 5271 .cmd.count = 5272 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 5273 size), 5274 .notif.type = type, 5275 .notif.sync = sync, 5276 }; 5277 struct iwl_host_cmd hcmd = { 5278 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 5279 .data[0] = &cmd, 5280 .len[0] = sizeof(cmd), 5281 .data[1] = data, 5282 .len[1] = size, 5283 .flags = sync ? 0 : CMD_ASYNC, 5284 }; 5285 int ret; 5286 5287 /* size must be a multiple of DWORD */ 5288 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 5289 return; 5290 5291 if (!iwl_mvm_has_new_rx_api(mvm)) 5292 return; 5293 5294 if (sync) { 5295 cmd.notif.cookie = mvm->queue_sync_cookie; 5296 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 5297 } 5298 5299 ret = iwl_mvm_send_cmd(mvm, &hcmd); 5300 if (ret) { 5301 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5302 goto out; 5303 } 5304 5305 if (sync) { 5306 lockdep_assert_held(&mvm->mutex); 5307 ret = wait_event_timeout(mvm->rx_sync_waitq, 5308 READ_ONCE(mvm->queue_sync_state) == 0 || 5309 iwl_mvm_is_radio_killed(mvm), 5310 HZ); 5311 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 5312 "queue sync: failed to sync, state is 0x%lx\n", 5313 mvm->queue_sync_state); 5314 } 5315 5316 out: 5317 if (sync) { 5318 mvm->queue_sync_state = 0; 5319 mvm->queue_sync_cookie++; 5320 } 5321 } 5322 5323 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5324 { 5325 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5326 5327 mutex_lock(&mvm->mutex); 5328 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 5329 mutex_unlock(&mvm->mutex); 5330 } 5331 5332 static int 5333 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5334 struct ieee80211_vif *vif, 5335 struct cfg80211_ftm_responder_stats *stats) 5336 { 5337 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5338 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5339 5340 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5341 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5342 return -EINVAL; 5343 5344 mutex_lock(&mvm->mutex); 5345 *stats = mvm->ftm_resp_stats; 5346 mutex_unlock(&mvm->mutex); 5347 5348 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5349 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5350 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5351 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5352 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5353 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5354 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5355 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5356 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5357 5358 return 0; 5359 } 5360 5361 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5362 struct ieee80211_vif *vif, 5363 struct cfg80211_pmsr_request *request) 5364 { 5365 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5366 int ret; 5367 5368 mutex_lock(&mvm->mutex); 5369 ret = iwl_mvm_ftm_start(mvm, vif, request); 5370 mutex_unlock(&mvm->mutex); 5371 5372 return ret; 5373 } 5374 5375 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5376 struct ieee80211_vif *vif, 5377 struct cfg80211_pmsr_request *request) 5378 { 5379 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5380 5381 mutex_lock(&mvm->mutex); 5382 iwl_mvm_ftm_abort(mvm, request); 5383 mutex_unlock(&mvm->mutex); 5384 } 5385 5386 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5387 { 5388 u8 protocol = ip_hdr(skb)->protocol; 5389 5390 if (!IS_ENABLED(CONFIG_INET)) 5391 return false; 5392 5393 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5394 } 5395 5396 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5397 struct sk_buff *head, 5398 struct sk_buff *skb) 5399 { 5400 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5401 5402 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 5403 return iwl_mvm_tx_csum_bz(mvm, head, true) == 5404 iwl_mvm_tx_csum_bz(mvm, skb, true); 5405 5406 /* For now don't aggregate IPv6 in AMSDU */ 5407 if (skb->protocol != htons(ETH_P_IP)) 5408 return false; 5409 5410 if (!iwl_mvm_is_csum_supported(mvm)) 5411 return true; 5412 5413 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5414 } 5415 5416 const struct ieee80211_ops iwl_mvm_hw_ops = { 5417 .tx = iwl_mvm_mac_tx, 5418 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5419 .ampdu_action = iwl_mvm_mac_ampdu_action, 5420 .get_antenna = iwl_mvm_op_get_antenna, 5421 .start = iwl_mvm_mac_start, 5422 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5423 .stop = iwl_mvm_mac_stop, 5424 .add_interface = iwl_mvm_mac_add_interface, 5425 .remove_interface = iwl_mvm_mac_remove_interface, 5426 .config = iwl_mvm_mac_config, 5427 .prepare_multicast = iwl_mvm_prepare_multicast, 5428 .configure_filter = iwl_mvm_configure_filter, 5429 .config_iface_filter = iwl_mvm_config_iface_filter, 5430 .bss_info_changed = iwl_mvm_bss_info_changed, 5431 .hw_scan = iwl_mvm_mac_hw_scan, 5432 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5433 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5434 .sta_state = iwl_mvm_mac_sta_state, 5435 .sta_notify = iwl_mvm_mac_sta_notify, 5436 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5437 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5438 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5439 .sta_rc_update = iwl_mvm_sta_rc_update, 5440 .conf_tx = iwl_mvm_mac_conf_tx, 5441 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5442 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 5443 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5444 .flush = iwl_mvm_mac_flush, 5445 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5446 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5447 .set_key = iwl_mvm_mac_set_key, 5448 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5449 .remain_on_channel = iwl_mvm_roc, 5450 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5451 .add_chanctx = iwl_mvm_add_chanctx, 5452 .remove_chanctx = iwl_mvm_remove_chanctx, 5453 .change_chanctx = iwl_mvm_change_chanctx, 5454 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5455 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5456 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5457 5458 .start_ap = iwl_mvm_start_ap, 5459 .stop_ap = iwl_mvm_stop_ap, 5460 .join_ibss = iwl_mvm_start_ibss, 5461 .leave_ibss = iwl_mvm_stop_ibss, 5462 5463 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5464 5465 .set_tim = iwl_mvm_set_tim, 5466 5467 .channel_switch = iwl_mvm_channel_switch, 5468 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5469 .post_channel_switch = iwl_mvm_post_channel_switch, 5470 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5471 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5472 5473 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5474 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5475 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5476 5477 .event_callback = iwl_mvm_mac_event_callback, 5478 5479 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5480 5481 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5482 5483 #ifdef CONFIG_PM_SLEEP 5484 /* look at d3.c */ 5485 .suspend = iwl_mvm_suspend, 5486 .resume = iwl_mvm_resume, 5487 .set_wakeup = iwl_mvm_set_wakeup, 5488 .set_rekey_data = iwl_mvm_set_rekey_data, 5489 #if IS_ENABLED(CONFIG_IPV6) 5490 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5491 #endif 5492 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5493 #endif 5494 .get_survey = iwl_mvm_mac_get_survey, 5495 .sta_statistics = iwl_mvm_mac_sta_statistics, 5496 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5497 .start_pmsr = iwl_mvm_start_pmsr, 5498 .abort_pmsr = iwl_mvm_abort_pmsr, 5499 5500 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5501 #ifdef CONFIG_IWLWIFI_DEBUGFS 5502 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5503 #endif 5504 }; 5505