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(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 736 &mvmtxq->state) && 737 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 738 &mvmtxq->state) && 739 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 740 skb = ieee80211_tx_dequeue(hw, txq); 741 742 if (!skb) { 743 if (txq->sta) 744 IWL_DEBUG_TX(mvm, 745 "TXQ of sta %pM tid %d is now empty\n", 746 txq->sta->addr, 747 txq->tid); 748 break; 749 } 750 751 iwl_mvm_tx_skb(mvm, skb, txq->sta); 752 } 753 } while (atomic_dec_return(&mvmtxq->tx_request)); 754 rcu_read_unlock(); 755 } 756 757 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 758 struct ieee80211_txq *txq) 759 { 760 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 761 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 762 763 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 764 !txq->sta) { 765 iwl_mvm_mac_itxq_xmit(hw, txq); 766 return; 767 } 768 769 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 770 * to handle any packets we leave on the txq now 771 */ 772 773 spin_lock_bh(&mvm->add_stream_lock); 774 /* The list is being deleted only after the queue is fully allocated. */ 775 if (list_empty(&mvmtxq->list) && 776 /* recheck under lock */ 777 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 778 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 779 schedule_work(&mvm->add_stream_wk); 780 } 781 spin_unlock_bh(&mvm->add_stream_lock); 782 } 783 784 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 785 do { \ 786 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 787 break; \ 788 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 789 } while (0) 790 791 static void 792 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 793 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 794 enum ieee80211_ampdu_mlme_action action) 795 { 796 struct iwl_fw_dbg_trigger_tlv *trig; 797 struct iwl_fw_dbg_trigger_ba *ba_trig; 798 799 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 800 FW_DBG_TRIGGER_BA); 801 if (!trig) 802 return; 803 804 ba_trig = (void *)trig->data; 805 806 switch (action) { 807 case IEEE80211_AMPDU_TX_OPERATIONAL: { 808 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 809 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 810 811 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 812 "TX AGG START: MAC %pM tid %d ssn %d\n", 813 sta->addr, tid, tid_data->ssn); 814 break; 815 } 816 case IEEE80211_AMPDU_TX_STOP_CONT: 817 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 818 "TX AGG STOP: MAC %pM tid %d\n", 819 sta->addr, tid); 820 break; 821 case IEEE80211_AMPDU_RX_START: 822 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 823 "RX AGG START: MAC %pM tid %d ssn %d\n", 824 sta->addr, tid, rx_ba_ssn); 825 break; 826 case IEEE80211_AMPDU_RX_STOP: 827 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 828 "RX AGG STOP: MAC %pM tid %d\n", 829 sta->addr, tid); 830 break; 831 default: 832 break; 833 } 834 } 835 836 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 837 struct ieee80211_vif *vif, 838 struct ieee80211_ampdu_params *params) 839 { 840 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 841 int ret; 842 struct ieee80211_sta *sta = params->sta; 843 enum ieee80211_ampdu_mlme_action action = params->action; 844 u16 tid = params->tid; 845 u16 *ssn = ¶ms->ssn; 846 u16 buf_size = params->buf_size; 847 bool amsdu = params->amsdu; 848 u16 timeout = params->timeout; 849 850 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 851 sta->addr, tid, action); 852 853 if (!(mvm->nvm_data->sku_cap_11n_enable)) 854 return -EACCES; 855 856 mutex_lock(&mvm->mutex); 857 858 switch (action) { 859 case IEEE80211_AMPDU_RX_START: 860 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 861 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 862 struct iwl_mvm_vif *mvmvif; 863 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 864 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 865 866 mdata->opened_rx_ba_sessions = true; 867 mvmvif = iwl_mvm_vif_from_mac80211(vif); 868 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 869 } 870 if (!iwl_enable_rx_ampdu()) { 871 ret = -EINVAL; 872 break; 873 } 874 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 875 timeout); 876 break; 877 case IEEE80211_AMPDU_RX_STOP: 878 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 879 timeout); 880 break; 881 case IEEE80211_AMPDU_TX_START: 882 if (!iwl_enable_tx_ampdu()) { 883 ret = -EINVAL; 884 break; 885 } 886 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 887 break; 888 case IEEE80211_AMPDU_TX_STOP_CONT: 889 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 890 break; 891 case IEEE80211_AMPDU_TX_STOP_FLUSH: 892 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 893 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 894 break; 895 case IEEE80211_AMPDU_TX_OPERATIONAL: 896 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 897 buf_size, amsdu); 898 break; 899 default: 900 WARN_ON_ONCE(1); 901 ret = -EINVAL; 902 break; 903 } 904 905 if (!ret) { 906 u16 rx_ba_ssn = 0; 907 908 if (action == IEEE80211_AMPDU_RX_START) 909 rx_ba_ssn = *ssn; 910 911 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 912 rx_ba_ssn, action); 913 } 914 mutex_unlock(&mvm->mutex); 915 916 return ret; 917 } 918 919 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 920 struct ieee80211_vif *vif) 921 { 922 struct iwl_mvm *mvm = data; 923 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 924 925 mvmvif->uploaded = false; 926 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 927 928 spin_lock_bh(&mvm->time_event_lock); 929 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 930 spin_unlock_bh(&mvm->time_event_lock); 931 932 mvmvif->phy_ctxt = NULL; 933 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 934 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 935 } 936 937 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 938 { 939 iwl_mvm_stop_device(mvm); 940 941 mvm->cur_aid = 0; 942 943 mvm->scan_status = 0; 944 mvm->ps_disabled = false; 945 mvm->rfkill_safe_init_done = false; 946 947 /* just in case one was running */ 948 iwl_mvm_cleanup_roc_te(mvm); 949 ieee80211_remain_on_channel_expired(mvm->hw); 950 951 iwl_mvm_ftm_restart(mvm); 952 953 /* 954 * cleanup all interfaces, even inactive ones, as some might have 955 * gone down during the HW restart 956 */ 957 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 958 959 mvm->p2p_device_vif = NULL; 960 961 iwl_mvm_reset_phy_ctxts(mvm); 962 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 963 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 964 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 965 966 ieee80211_wake_queues(mvm->hw); 967 968 mvm->rx_ba_sessions = 0; 969 mvm->fwrt.dump.conf = FW_DBG_INVALID; 970 mvm->monitor_on = false; 971 972 /* keep statistics ticking */ 973 iwl_mvm_accu_radio_stats(mvm); 974 } 975 976 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 977 { 978 int ret; 979 980 lockdep_assert_held(&mvm->mutex); 981 982 ret = iwl_mvm_mei_get_ownership(mvm); 983 if (ret) 984 return ret; 985 986 if (mvm->mei_nvm_data) { 987 /* We got the NIC, we can now free the MEI NVM data */ 988 kfree(mvm->mei_nvm_data); 989 mvm->mei_nvm_data = NULL; 990 991 /* 992 * We can't free the nvm_data we allocated based on the SAP 993 * data because we registered to cfg80211 with the channels 994 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 995 * just in order to be able free it later. 996 * NULLify nvm_data so that we will read the NVM from the 997 * firmware this time. 998 */ 999 mvm->temp_nvm_data = mvm->nvm_data; 1000 mvm->nvm_data = NULL; 1001 } 1002 1003 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1004 /* 1005 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1006 * so later code will - from now on - see that we're doing it. 1007 */ 1008 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1009 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1010 /* Clean up some internal and mac80211 state on restart */ 1011 iwl_mvm_restart_cleanup(mvm); 1012 } 1013 ret = iwl_mvm_up(mvm); 1014 1015 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1016 NULL); 1017 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1018 NULL); 1019 1020 mvm->last_reset_or_resume_time_jiffies = jiffies; 1021 1022 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1023 /* Something went wrong - we need to finish some cleanup 1024 * that normally iwl_mvm_mac_restart_complete() below 1025 * would do. 1026 */ 1027 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1028 } 1029 1030 return ret; 1031 } 1032 1033 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1034 { 1035 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1036 int ret; 1037 int retry, max_retry = 0; 1038 1039 mutex_lock(&mvm->mutex); 1040 1041 /* we are starting the mac not in error flow, and restart is enabled */ 1042 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1043 iwlwifi_mod_params.fw_restart) { 1044 max_retry = IWL_MAX_INIT_RETRY; 1045 /* 1046 * This will prevent mac80211 recovery flows to trigger during 1047 * init failures 1048 */ 1049 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1050 } 1051 1052 for (retry = 0; retry <= max_retry; retry++) { 1053 ret = __iwl_mvm_mac_start(mvm); 1054 if (!ret) 1055 break; 1056 1057 /* 1058 * In PLDR sync PCI re-enumeration is needed. no point to retry 1059 * mac start before that. 1060 */ 1061 if (mvm->pldr_sync) { 1062 iwl_mei_alive_notif(false); 1063 iwl_trans_pcie_remove(mvm->trans, true); 1064 break; 1065 } 1066 1067 IWL_ERR(mvm, "mac start retry %d\n", retry); 1068 } 1069 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1070 1071 mutex_unlock(&mvm->mutex); 1072 1073 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1074 1075 return ret; 1076 } 1077 1078 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1079 { 1080 int ret; 1081 1082 mutex_lock(&mvm->mutex); 1083 1084 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1085 1086 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1087 if (ret) 1088 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1089 ret); 1090 1091 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1092 1093 /* 1094 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1095 * of packets the FW sent out, so we must reconnect. 1096 */ 1097 iwl_mvm_teardown_tdls_peers(mvm); 1098 1099 mutex_unlock(&mvm->mutex); 1100 } 1101 1102 static void 1103 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1104 enum ieee80211_reconfig_type reconfig_type) 1105 { 1106 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1107 1108 switch (reconfig_type) { 1109 case IEEE80211_RECONFIG_TYPE_RESTART: 1110 iwl_mvm_restart_complete(mvm); 1111 break; 1112 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1113 break; 1114 } 1115 } 1116 1117 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1118 { 1119 lockdep_assert_held(&mvm->mutex); 1120 1121 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1122 1123 /* firmware counters are obviously reset now, but we shouldn't 1124 * partially track so also clear the fw_reset_accu counters. 1125 */ 1126 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1127 1128 /* async_handlers_wk is now blocked */ 1129 1130 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) < 12) 1131 iwl_mvm_rm_aux_sta(mvm); 1132 1133 iwl_mvm_stop_device(mvm); 1134 1135 iwl_mvm_async_handlers_purge(mvm); 1136 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1137 1138 /* 1139 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1140 * hw (as restart_complete() won't be called in this case) and mac80211 1141 * won't execute the restart. 1142 * But make sure to cleanup interfaces that have gone down before/during 1143 * HW restart was requested. 1144 */ 1145 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1146 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1147 &mvm->status)) 1148 ieee80211_iterate_interfaces(mvm->hw, 0, 1149 iwl_mvm_cleanup_iterator, mvm); 1150 1151 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1152 * make sure there's nothing left there and warn if any is found. 1153 */ 1154 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1155 int i; 1156 1157 for (i = 0; i < mvm->max_scans; i++) { 1158 if (WARN_ONCE(mvm->scan_uid_status[i], 1159 "UMAC scan UID %d status was not cleaned\n", 1160 i)) 1161 mvm->scan_uid_status[i] = 0; 1162 } 1163 } 1164 } 1165 1166 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1167 { 1168 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1169 1170 flush_work(&mvm->async_handlers_wk); 1171 flush_work(&mvm->add_stream_wk); 1172 1173 /* 1174 * Lock and clear the firmware running bit here already, so that 1175 * new commands coming in elsewhere, e.g. from debugfs, will not 1176 * be able to proceed. This is important here because one of those 1177 * debugfs files causes the firmware dump to be triggered, and if we 1178 * don't stop debugfs accesses before canceling that it could be 1179 * retriggered after we flush it but before we've cleared the bit. 1180 */ 1181 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1182 1183 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1184 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1185 1186 /* 1187 * The work item could be running or queued if the 1188 * ROC time event stops just as we get here. 1189 */ 1190 flush_work(&mvm->roc_done_wk); 1191 1192 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1193 1194 mutex_lock(&mvm->mutex); 1195 __iwl_mvm_mac_stop(mvm); 1196 mutex_unlock(&mvm->mutex); 1197 1198 /* 1199 * The worker might have been waiting for the mutex, let it run and 1200 * discover that its list is now empty. 1201 */ 1202 cancel_work_sync(&mvm->async_handlers_wk); 1203 } 1204 1205 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1206 { 1207 u16 i; 1208 1209 lockdep_assert_held(&mvm->mutex); 1210 1211 for (i = 0; i < NUM_PHY_CTX; i++) 1212 if (!mvm->phy_ctxts[i].ref) 1213 return &mvm->phy_ctxts[i]; 1214 1215 IWL_ERR(mvm, "No available PHY context\n"); 1216 return NULL; 1217 } 1218 1219 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1220 s16 tx_power) 1221 { 1222 u32 cmd_id = REDUCE_TX_POWER_CMD; 1223 int len; 1224 struct iwl_dev_tx_power_cmd cmd = { 1225 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1226 .common.mac_context_id = 1227 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1228 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1229 }; 1230 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1231 IWL_FW_CMD_VER_UNKNOWN); 1232 1233 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1234 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1235 1236 if (cmd_ver == 7) 1237 len = sizeof(cmd.v7); 1238 else if (cmd_ver == 6) 1239 len = sizeof(cmd.v6); 1240 else if (fw_has_api(&mvm->fw->ucode_capa, 1241 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1242 len = sizeof(cmd.v5); 1243 else if (fw_has_capa(&mvm->fw->ucode_capa, 1244 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1245 len = sizeof(cmd.v4); 1246 else 1247 len = sizeof(cmd.v3); 1248 1249 /* all structs have the same common part, add it */ 1250 len += sizeof(cmd.common); 1251 1252 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1253 } 1254 1255 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1256 struct ieee80211_vif *vif) 1257 { 1258 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1259 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1260 int ret; 1261 1262 mutex_lock(&mvm->mutex); 1263 1264 if (vif->type == NL80211_IFTYPE_STATION) { 1265 struct iwl_mvm_sta *mvmsta; 1266 1267 mvmvif->csa_bcn_pending = false; 1268 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1269 mvmvif->ap_sta_id); 1270 1271 if (WARN_ON(!mvmsta)) { 1272 ret = -EIO; 1273 goto out_unlock; 1274 } 1275 1276 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1277 1278 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1279 1280 if (!fw_has_capa(&mvm->fw->ucode_capa, 1281 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1282 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1283 if (ret) 1284 goto out_unlock; 1285 1286 iwl_mvm_stop_session_protection(mvm, vif); 1287 } 1288 } 1289 1290 mvmvif->ps_disabled = false; 1291 1292 ret = iwl_mvm_power_update_ps(mvm); 1293 1294 out_unlock: 1295 if (mvmvif->csa_failed) 1296 ret = -EIO; 1297 mutex_unlock(&mvm->mutex); 1298 1299 return ret; 1300 } 1301 1302 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1303 struct ieee80211_vif *vif) 1304 { 1305 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1306 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1307 struct iwl_chan_switch_te_cmd cmd = { 1308 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1309 mvmvif->color)), 1310 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1311 }; 1312 1313 /* 1314 * In the new flow since FW is in charge of the timing, 1315 * if driver has canceled the channel switch he will receive the 1316 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1317 */ 1318 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1319 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1320 return; 1321 1322 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1323 1324 mutex_lock(&mvm->mutex); 1325 if (!fw_has_capa(&mvm->fw->ucode_capa, 1326 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1327 iwl_mvm_remove_csa_period(mvm, vif); 1328 else 1329 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1330 WIDE_ID(MAC_CONF_GROUP, 1331 CHANNEL_SWITCH_TIME_EVENT_CMD), 1332 0, sizeof(cmd), &cmd)); 1333 mvmvif->csa_failed = true; 1334 mutex_unlock(&mvm->mutex); 1335 1336 iwl_mvm_post_channel_switch(hw, vif); 1337 } 1338 1339 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1340 { 1341 struct iwl_mvm_vif *mvmvif; 1342 struct ieee80211_vif *vif; 1343 1344 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1345 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1346 1347 /* Trigger disconnect (should clear the CSA state) */ 1348 ieee80211_chswitch_done(vif, false); 1349 } 1350 1351 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1352 struct ieee80211_vif *vif) 1353 { 1354 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1355 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1356 int ret; 1357 1358 mvmvif->mvm = mvm; 1359 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1360 1361 /* 1362 * Not much to do here. The stack will not allow interface 1363 * types or combinations that we didn't advertise, so we 1364 * don't really have to check the types. 1365 */ 1366 1367 mutex_lock(&mvm->mutex); 1368 1369 /* make sure that beacon statistics don't go backwards with FW reset */ 1370 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1371 mvmvif->beacon_stats.accu_num_beacons += 1372 mvmvif->beacon_stats.num_beacons; 1373 1374 /* Allocate resources for the MAC context, and add it to the fw */ 1375 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1376 if (ret) 1377 goto out_unlock; 1378 1379 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1380 1381 /* 1382 * The AP binding flow can be done only after the beacon 1383 * template is configured (which happens only in the mac80211 1384 * start_ap() flow), and adding the broadcast station can happen 1385 * only after the binding. 1386 * In addition, since modifying the MAC before adding a bcast 1387 * station is not allowed by the FW, delay the adding of MAC context to 1388 * the point where we can also add the bcast station. 1389 * In short: there's not much we can do at this point, other than 1390 * allocating resources :) 1391 */ 1392 if (vif->type == NL80211_IFTYPE_AP || 1393 vif->type == NL80211_IFTYPE_ADHOC) { 1394 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1395 if (ret) { 1396 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1397 goto out_unlock; 1398 } 1399 1400 /* 1401 * Only queue for this station is the mcast queue, 1402 * which shouldn't be in TFD mask anyway 1403 */ 1404 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1405 0, vif->type, 1406 IWL_STA_MULTICAST); 1407 if (ret) 1408 goto out_unlock; 1409 1410 iwl_mvm_vif_dbgfs_register(mvm, vif); 1411 goto out_unlock; 1412 } 1413 1414 mvmvif->features |= hw->netdev_features; 1415 1416 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1417 if (ret) 1418 goto out_unlock; 1419 1420 ret = iwl_mvm_power_update_mac(mvm); 1421 if (ret) 1422 goto out_remove_mac; 1423 1424 /* beacon filtering */ 1425 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1426 if (ret) 1427 goto out_remove_mac; 1428 1429 if (!mvm->bf_allowed_vif && 1430 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1431 mvm->bf_allowed_vif = mvmvif; 1432 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1433 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1434 } 1435 1436 /* 1437 * P2P_DEVICE interface does not have a channel context assigned to it, 1438 * so a dedicated PHY context is allocated to it and the corresponding 1439 * MAC context is bound to it at this stage. 1440 */ 1441 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1442 1443 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1444 if (!mvmvif->phy_ctxt) { 1445 ret = -ENOSPC; 1446 goto out_free_bf; 1447 } 1448 1449 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1450 ret = iwl_mvm_binding_add_vif(mvm, vif); 1451 if (ret) 1452 goto out_unref_phy; 1453 1454 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1455 if (ret) 1456 goto out_unbind; 1457 1458 /* Save a pointer to p2p device vif, so it can later be used to 1459 * update the p2p device MAC when a GO is started/stopped */ 1460 mvm->p2p_device_vif = vif; 1461 } 1462 1463 iwl_mvm_tcm_add_vif(mvm, vif); 1464 INIT_DELAYED_WORK(&mvmvif->csa_work, 1465 iwl_mvm_channel_switch_disconnect_wk); 1466 1467 if (vif->type == NL80211_IFTYPE_MONITOR) 1468 mvm->monitor_on = true; 1469 1470 iwl_mvm_vif_dbgfs_register(mvm, vif); 1471 1472 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1473 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1474 !mvm->csme_vif && mvm->mei_registered) { 1475 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1476 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1477 mvm->csme_vif = vif; 1478 } 1479 1480 goto out_unlock; 1481 1482 out_unbind: 1483 iwl_mvm_binding_remove_vif(mvm, vif); 1484 out_unref_phy: 1485 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1486 out_free_bf: 1487 if (mvm->bf_allowed_vif == mvmvif) { 1488 mvm->bf_allowed_vif = NULL; 1489 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1490 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1491 } 1492 out_remove_mac: 1493 mvmvif->phy_ctxt = NULL; 1494 iwl_mvm_mac_ctxt_remove(mvm, vif); 1495 out_unlock: 1496 mutex_unlock(&mvm->mutex); 1497 1498 return ret; 1499 } 1500 1501 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1502 struct ieee80211_vif *vif) 1503 { 1504 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1505 /* 1506 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1507 * We assume here that all the packets sent to the OFFCHANNEL 1508 * queue are sent in ROC session. 1509 */ 1510 flush_work(&mvm->roc_done_wk); 1511 } 1512 } 1513 1514 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1515 struct ieee80211_vif *vif) 1516 { 1517 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1518 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1519 struct iwl_probe_resp_data *probe_data; 1520 1521 iwl_mvm_prepare_mac_removal(mvm, vif); 1522 1523 if (!(vif->type == NL80211_IFTYPE_AP || 1524 vif->type == NL80211_IFTYPE_ADHOC)) 1525 iwl_mvm_tcm_rm_vif(mvm, vif); 1526 1527 mutex_lock(&mvm->mutex); 1528 1529 if (vif == mvm->csme_vif) { 1530 iwl_mei_set_netdev(NULL); 1531 mvm->csme_vif = NULL; 1532 } 1533 1534 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1535 lockdep_is_held(&mvm->mutex)); 1536 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1537 if (probe_data) 1538 kfree_rcu(probe_data, rcu_head); 1539 1540 if (mvm->bf_allowed_vif == mvmvif) { 1541 mvm->bf_allowed_vif = NULL; 1542 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1543 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1544 } 1545 1546 if (vif->bss_conf.ftm_responder) 1547 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1548 1549 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1550 1551 /* 1552 * For AP/GO interface, the tear down of the resources allocated to the 1553 * interface is be handled as part of the stop_ap flow. 1554 */ 1555 if (vif->type == NL80211_IFTYPE_AP || 1556 vif->type == NL80211_IFTYPE_ADHOC) { 1557 #ifdef CONFIG_NL80211_TESTMODE 1558 if (vif == mvm->noa_vif) { 1559 mvm->noa_vif = NULL; 1560 mvm->noa_duration = 0; 1561 } 1562 #endif 1563 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1564 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1565 goto out_release; 1566 } 1567 1568 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1569 mvm->p2p_device_vif = NULL; 1570 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1571 iwl_mvm_binding_remove_vif(mvm, vif); 1572 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1573 mvmvif->phy_ctxt = NULL; 1574 } 1575 1576 iwl_mvm_power_update_mac(mvm); 1577 iwl_mvm_mac_ctxt_remove(mvm, vif); 1578 1579 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1580 1581 if (vif->type == NL80211_IFTYPE_MONITOR) 1582 mvm->monitor_on = false; 1583 1584 out_release: 1585 mutex_unlock(&mvm->mutex); 1586 } 1587 1588 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1589 { 1590 return 0; 1591 } 1592 1593 struct iwl_mvm_mc_iter_data { 1594 struct iwl_mvm *mvm; 1595 int port_id; 1596 }; 1597 1598 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1599 struct ieee80211_vif *vif) 1600 { 1601 struct iwl_mvm_mc_iter_data *data = _data; 1602 struct iwl_mvm *mvm = data->mvm; 1603 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1604 struct iwl_host_cmd hcmd = { 1605 .id = MCAST_FILTER_CMD, 1606 .flags = CMD_ASYNC, 1607 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1608 }; 1609 int ret, len; 1610 1611 /* if we don't have free ports, mcast frames will be dropped */ 1612 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1613 return; 1614 1615 if (vif->type != NL80211_IFTYPE_STATION || 1616 !vif->cfg.assoc) 1617 return; 1618 1619 cmd->port_id = data->port_id++; 1620 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1621 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1622 1623 hcmd.len[0] = len; 1624 hcmd.data[0] = cmd; 1625 1626 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1627 if (ret) 1628 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1629 } 1630 1631 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1632 { 1633 struct iwl_mvm_mc_iter_data iter_data = { 1634 .mvm = mvm, 1635 }; 1636 int ret; 1637 1638 lockdep_assert_held(&mvm->mutex); 1639 1640 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1641 return; 1642 1643 ieee80211_iterate_active_interfaces_atomic( 1644 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1645 iwl_mvm_mc_iface_iterator, &iter_data); 1646 1647 /* 1648 * Send a (synchronous) ech command so that we wait for the 1649 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1650 * the interface iterator. Otherwise, we might get here over 1651 * and over again (by userspace just sending a lot of these) 1652 * and the CPU can send them faster than the firmware can 1653 * process them. 1654 * Note that the CPU is still faster - but with this we'll 1655 * actually send fewer commands overall because the CPU will 1656 * not schedule the work in mac80211 as frequently if it's 1657 * still running when rescheduled (possibly multiple times). 1658 */ 1659 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1660 if (ret) 1661 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1662 } 1663 1664 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1665 struct netdev_hw_addr_list *mc_list) 1666 { 1667 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1668 struct iwl_mcast_filter_cmd *cmd; 1669 struct netdev_hw_addr *addr; 1670 int addr_count; 1671 bool pass_all; 1672 int len; 1673 1674 addr_count = netdev_hw_addr_list_count(mc_list); 1675 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1676 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1677 if (pass_all) 1678 addr_count = 0; 1679 1680 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1681 cmd = kzalloc(len, GFP_ATOMIC); 1682 if (!cmd) 1683 return 0; 1684 1685 if (pass_all) { 1686 cmd->pass_all = 1; 1687 return (u64)(unsigned long)cmd; 1688 } 1689 1690 netdev_hw_addr_list_for_each(addr, mc_list) { 1691 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1692 cmd->count, addr->addr); 1693 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1694 addr->addr, ETH_ALEN); 1695 cmd->count++; 1696 } 1697 1698 return (u64)(unsigned long)cmd; 1699 } 1700 1701 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1702 unsigned int changed_flags, 1703 unsigned int *total_flags, 1704 u64 multicast) 1705 { 1706 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1707 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1708 1709 mutex_lock(&mvm->mutex); 1710 1711 /* replace previous configuration */ 1712 kfree(mvm->mcast_filter_cmd); 1713 mvm->mcast_filter_cmd = cmd; 1714 1715 if (!cmd) 1716 goto out; 1717 1718 if (changed_flags & FIF_ALLMULTI) 1719 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1720 1721 if (cmd->pass_all) 1722 cmd->count = 0; 1723 1724 iwl_mvm_recalc_multicast(mvm); 1725 out: 1726 mutex_unlock(&mvm->mutex); 1727 *total_flags = 0; 1728 } 1729 1730 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1731 struct ieee80211_vif *vif, 1732 unsigned int filter_flags, 1733 unsigned int changed_flags) 1734 { 1735 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1736 1737 /* We support only filter for probe requests */ 1738 if (!(changed_flags & FIF_PROBE_REQ)) 1739 return; 1740 1741 /* Supported only for p2p client interfaces */ 1742 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1743 !vif->p2p) 1744 return; 1745 1746 mutex_lock(&mvm->mutex); 1747 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1748 mutex_unlock(&mvm->mutex); 1749 } 1750 1751 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1752 struct ieee80211_vif *vif) 1753 { 1754 struct iwl_mu_group_mgmt_cmd cmd = {}; 1755 1756 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1757 WLAN_MEMBERSHIP_LEN); 1758 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1759 WLAN_USER_POSITION_LEN); 1760 1761 return iwl_mvm_send_cmd_pdu(mvm, 1762 WIDE_ID(DATA_PATH_GROUP, 1763 UPDATE_MU_GROUPS_CMD), 1764 0, sizeof(cmd), &cmd); 1765 } 1766 1767 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1768 struct ieee80211_vif *vif) 1769 { 1770 if (vif->bss_conf.mu_mimo_owner) { 1771 struct iwl_mu_group_mgmt_notif *notif = _data; 1772 1773 /* 1774 * MU-MIMO Group Id action frame is little endian. We treat 1775 * the data received from firmware as if it came from the 1776 * action frame, so no conversion is needed. 1777 */ 1778 ieee80211_update_mu_groups(vif, 0, 1779 (u8 *)¬if->membership_status, 1780 (u8 *)¬if->user_position); 1781 } 1782 } 1783 1784 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1785 struct iwl_rx_cmd_buffer *rxb) 1786 { 1787 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1788 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1789 1790 ieee80211_iterate_active_interfaces_atomic( 1791 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1792 iwl_mvm_mu_mimo_iface_iterator, notif); 1793 } 1794 1795 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1796 { 1797 u8 byte_num = ppe_pos_bit / 8; 1798 u8 bit_num = ppe_pos_bit % 8; 1799 u8 residue_bits; 1800 u8 res; 1801 1802 if (bit_num <= 5) 1803 return (ppe[byte_num] >> bit_num) & 1804 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1805 1806 /* 1807 * If bit_num > 5, we have to combine bits with next byte. 1808 * Calculate how many bits we need to take from current byte (called 1809 * here "residue_bits"), and add them to bits from next byte. 1810 */ 1811 1812 residue_bits = 8 - bit_num; 1813 1814 res = (ppe[byte_num + 1] & 1815 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1816 residue_bits; 1817 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1818 1819 return res; 1820 } 1821 1822 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1823 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1824 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 1825 bool inheritance) 1826 { 1827 int i; 1828 1829 /* 1830 * FW currently supports only nss == MAX_HE_SUPP_NSS 1831 * 1832 * If nss > MAX: we can ignore values we don't support 1833 * If nss < MAX: we can set zeros in other streams 1834 */ 1835 if (nss > MAX_HE_SUPP_NSS) { 1836 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 1837 MAX_HE_SUPP_NSS); 1838 nss = MAX_HE_SUPP_NSS; 1839 } 1840 1841 for (i = 0; i < nss; i++) { 1842 u8 ru_index_tmp = ru_index_bitmap << 1; 1843 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 1844 u8 bw; 1845 1846 for (bw = 0; 1847 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1848 bw++) { 1849 ru_index_tmp >>= 1; 1850 1851 /* 1852 * According to the 11be spec, if for a specific BW the PPE Thresholds 1853 * isn't present - it should inherit the thresholds from the last 1854 * BW for which we had PPE Thresholds. In 11ax though, we don't have 1855 * this inheritance - continue in this case 1856 */ 1857 if (!(ru_index_tmp & 1)) { 1858 if (inheritance) 1859 goto set_thresholds; 1860 else 1861 continue; 1862 } 1863 1864 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 1865 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 1866 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 1867 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 1868 1869 set_thresholds: 1870 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 1871 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 1872 } 1873 } 1874 } 1875 1876 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 1877 struct ieee80211_sta *sta, 1878 struct iwl_he_pkt_ext_v2 *pkt_ext, 1879 bool inheritance) 1880 { 1881 u8 nss = (sta->deflink.he_cap.ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) + 1; 1882 u8 *ppe = &sta->deflink.he_cap.ppe_thres[0]; 1883 u8 ru_index_bitmap = 1884 u8_get_bits(*ppe, 1885 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 1886 /* Starting after PPE header */ 1887 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 1888 1889 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 1890 inheritance); 1891 } 1892 1893 static void iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 1894 u8 nominal_padding, 1895 u32 *flags) 1896 { 1897 int low_th = -1; 1898 int high_th = -1; 1899 int i; 1900 1901 /* all the macros are the same for EHT and HE */ 1902 switch (nominal_padding) { 1903 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 1904 low_th = IWL_HE_PKT_EXT_NONE; 1905 high_th = IWL_HE_PKT_EXT_NONE; 1906 break; 1907 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 1908 low_th = IWL_HE_PKT_EXT_BPSK; 1909 high_th = IWL_HE_PKT_EXT_NONE; 1910 break; 1911 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 1912 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 1913 low_th = IWL_HE_PKT_EXT_NONE; 1914 high_th = IWL_HE_PKT_EXT_BPSK; 1915 break; 1916 } 1917 1918 /* Set the PPE thresholds accordingly */ 1919 if (low_th >= 0 && high_th >= 0) { 1920 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 1921 u8 bw; 1922 1923 for (bw = 0; 1924 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1925 bw++) { 1926 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 1927 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 1928 } 1929 } 1930 1931 *flags |= STA_CTXT_HE_PACKET_EXT; 1932 } 1933 } 1934 1935 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 1936 u8 nominal_padding) 1937 { 1938 int i; 1939 1940 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 1941 u8 bw; 1942 1943 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1944 bw++) { 1945 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 1946 1947 if (nominal_padding > 1948 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 1949 qam_th[1] == IWL_HE_PKT_EXT_NONE) 1950 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 1951 else if (nominal_padding == 1952 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 1953 qam_th[0] == IWL_HE_PKT_EXT_NONE && 1954 qam_th[1] == IWL_HE_PKT_EXT_NONE) 1955 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 1956 } 1957 } 1958 } 1959 1960 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 1961 struct ieee80211_vif *vif, u8 sta_id) 1962 { 1963 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1964 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 1965 .sta_id = sta_id, 1966 .tid_limit = IWL_MAX_TID_COUNT, 1967 .bss_color = vif->bss_conf.he_bss_color.color, 1968 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 1969 .frame_time_rts_th = 1970 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 1971 }; 1972 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 1973 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 1974 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 1975 int size; 1976 struct ieee80211_sta *sta; 1977 u32 flags; 1978 int i; 1979 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 1980 struct ieee80211_chanctx_conf *chanctx_conf; 1981 const struct ieee80211_supported_band *sband; 1982 void *cmd; 1983 u8 nominal_padding; 1984 1985 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 1986 ver = 1; 1987 1988 switch (ver) { 1989 case 1: 1990 /* same layout as v2 except some data at the end */ 1991 cmd = &sta_ctxt_cmd_v2; 1992 size = sizeof(struct iwl_he_sta_context_cmd_v1); 1993 break; 1994 case 2: 1995 cmd = &sta_ctxt_cmd_v2; 1996 size = sizeof(struct iwl_he_sta_context_cmd_v2); 1997 break; 1998 case 3: 1999 cmd = &sta_ctxt_cmd; 2000 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2001 break; 2002 default: 2003 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2004 return; 2005 } 2006 2007 rcu_read_lock(); 2008 2009 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf); 2010 if (WARN_ON(!chanctx_conf)) { 2011 rcu_read_unlock(); 2012 return; 2013 } 2014 2015 sband = mvm->hw->wiphy->bands[chanctx_conf->def.chan->band]; 2016 own_he_cap = ieee80211_get_he_iftype_cap(sband, 2017 ieee80211_vif_type_p2p(vif)); 2018 2019 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2020 if (IS_ERR_OR_NULL(sta)) { 2021 rcu_read_unlock(); 2022 WARN(1, "Can't find STA to configure HE\n"); 2023 return; 2024 } 2025 2026 if (!sta->deflink.he_cap.has_he) { 2027 rcu_read_unlock(); 2028 return; 2029 } 2030 2031 flags = 0; 2032 2033 /* Block 26-tone RU OFDMA transmissions */ 2034 if (mvmvif->he_ru_2mhz_block) 2035 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2036 2037 /* HTC flags */ 2038 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[0] & 2039 IEEE80211_HE_MAC_CAP0_HTC_HE) 2040 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2041 if ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] & 2042 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2043 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2044 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2045 u8 link_adap = 2046 ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2047 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2048 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] & 2049 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2050 2051 if (link_adap == 2) 2052 sta_ctxt_cmd.htc_flags |= 2053 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2054 else if (link_adap == 3) 2055 sta_ctxt_cmd.htc_flags |= 2056 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2057 } 2058 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2059 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2060 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[3] & 2061 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2062 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2063 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2064 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2065 2066 /* 2067 * Initialize the PPE thresholds to "None" (7), as described in Table 2068 * 9-262ac of 80211.ax/D3.0. 2069 */ 2070 memset(&sta_ctxt_cmd.pkt_ext, IWL_HE_PKT_EXT_NONE, 2071 sizeof(sta_ctxt_cmd.pkt_ext)); 2072 2073 if (sta->deflink.eht_cap.has_eht) { 2074 nominal_padding = 2075 u8_get_bits(sta->deflink.eht_cap.eht_cap_elem.phy_cap_info[5], 2076 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2077 2078 /* If PPE Thresholds exists, parse them into a FW-familiar format. */ 2079 if (sta->deflink.eht_cap.eht_cap_elem.phy_cap_info[5] & 2080 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2081 u8 nss = (sta->deflink.eht_cap.eht_ppe_thres[0] & 2082 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2083 u8 *ppe = &sta->deflink.eht_cap.eht_ppe_thres[0]; 2084 u8 ru_index_bitmap = 2085 u16_get_bits(*ppe, 2086 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2087 /* Starting after PPE header */ 2088 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2089 2090 iwl_mvm_parse_ppe(mvm, 2091 &sta_ctxt_cmd.pkt_ext, 2092 nss, ru_index_bitmap, ppe, 2093 ppe_pos_bit, true); 2094 flags |= STA_CTXT_HE_PACKET_EXT; 2095 /* EHT PPE Thresholds doesn't exist - set the API according to HE PPE Tresholds*/ 2096 } else if (sta->deflink.he_cap.he_cap_elem.phy_cap_info[6] & 2097 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2098 struct iwl_he_pkt_ext_v2 *pkt_ext = 2099 &sta_ctxt_cmd.pkt_ext; 2100 2101 /* 2102 * Even though HE Capabilities IE doesn't contain PPE 2103 * Thresholds for BW 320Mhz, thresholds for this BW will 2104 * be filled in with the same values as 160Mhz, due to 2105 * the inheritance, as required. 2106 */ 2107 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, sta, pkt_ext, 2108 true); 2109 2110 /* 2111 * According to the requirements, for MCSs 12-13 the maximum value between 2112 * HE PPE Threshold and Common Nominal Packet Padding needs to be taken 2113 */ 2114 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2115 2116 flags |= STA_CTXT_HE_PACKET_EXT; 2117 2118 /* 2119 * if PPE Thresholds doesn't present in both EHT IE and HE IE - 2120 * take the Thresholds from Common Nominal Packet Padding field 2121 */ 2122 } else { 2123 iwl_mvm_set_pkt_ext_from_nominal_padding(&sta_ctxt_cmd.pkt_ext, 2124 nominal_padding, 2125 &flags); 2126 } 2127 } else if (sta->deflink.he_cap.has_he) { 2128 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2129 if (sta->deflink.he_cap.he_cap_elem.phy_cap_info[6] & 2130 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2131 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, sta, 2132 &sta_ctxt_cmd.pkt_ext, 2133 false); 2134 flags |= STA_CTXT_HE_PACKET_EXT; 2135 /* 2136 * PPE Thresholds doesn't exist - set the API PPE values 2137 * according to Common Nominal Packet Padding field. 2138 */ 2139 } else { 2140 nominal_padding = 2141 u8_get_bits(sta->deflink.he_cap.he_cap_elem.phy_cap_info[9], 2142 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2143 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2144 iwl_mvm_set_pkt_ext_from_nominal_padding(&sta_ctxt_cmd.pkt_ext, 2145 nominal_padding, 2146 &flags); 2147 } 2148 } 2149 2150 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2151 int bw; 2152 2153 for (bw = 0; 2154 bw < ARRAY_SIZE(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i]); 2155 bw++) { 2156 u8 *qam_th = 2157 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0]; 2158 2159 IWL_DEBUG_HT(mvm, 2160 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2161 i, bw, qam_th[0], qam_th[1]); 2162 } 2163 } 2164 2165 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2166 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2167 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2168 2169 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2170 IEEE80211_HE_MAC_CAP2_ACK_EN) 2171 flags |= STA_CTXT_HE_ACK_ENABLED; 2172 2173 rcu_read_unlock(); 2174 2175 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2176 flags |= STA_CTXT_HE_MU_EDCA_CW; 2177 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2178 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2179 &mvmvif->queue_params[i].mu_edca_param_rec; 2180 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2181 2182 if (!mvmvif->queue_params[i].mu_edca) { 2183 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2184 break; 2185 } 2186 2187 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2188 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2189 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2190 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2191 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2192 cpu_to_le16(mu_edca->aifsn); 2193 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2194 cpu_to_le16(mu_edca->mu_edca_timer); 2195 } 2196 2197 2198 if (vif->bss_conf.uora_exists) { 2199 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2200 2201 sta_ctxt_cmd.rand_alloc_ecwmin = 2202 vif->bss_conf.uora_ocw_range & 0x7; 2203 sta_ctxt_cmd.rand_alloc_ecwmax = 2204 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2205 } 2206 2207 if (own_he_cap && !(own_he_cap->he_cap_elem.mac_cap_info[2] & 2208 IEEE80211_HE_MAC_CAP2_ACK_EN)) 2209 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2210 2211 if (vif->bss_conf.nontransmitted) { 2212 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2213 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2214 vif->bss_conf.transmitter_bssid); 2215 sta_ctxt_cmd.max_bssid_indicator = 2216 vif->bss_conf.bssid_indicator; 2217 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2218 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2219 sta_ctxt_cmd.profile_periodicity = 2220 vif->bss_conf.profile_periodicity; 2221 } 2222 2223 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2224 2225 if (ver < 3) { 2226 /* fields before pkt_ext */ 2227 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2228 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2229 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2230 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2231 2232 /* pkt_ext */ 2233 for (i = 0; 2234 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2235 i++) { 2236 u8 bw; 2237 2238 for (bw = 0; 2239 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2240 bw++) { 2241 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2242 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2243 2244 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2245 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2246 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2247 } 2248 } 2249 2250 /* fields after pkt_ext */ 2251 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2252 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2253 sizeof(sta_ctxt_cmd_v2) - 2254 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2255 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2256 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2257 (u8 *)&sta_ctxt_cmd + 2258 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2259 sizeof(sta_ctxt_cmd) - 2260 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2261 sta_ctxt_cmd_v2.reserved3 = 0; 2262 } 2263 2264 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2265 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2266 } 2267 2268 static void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, 2269 struct ieee80211_vif *vif, 2270 u32 duration_override) 2271 { 2272 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2273 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2274 2275 if (duration_override > duration) 2276 duration = duration_override; 2277 2278 /* Try really hard to protect the session and hear a beacon 2279 * The new session protection command allows us to protect the 2280 * session for a much longer time since the firmware will internally 2281 * create two events: a 300TU one with a very high priority that 2282 * won't be fragmented which should be enough for 99% of the cases, 2283 * and another one (which we configure here to be 900TU long) which 2284 * will have a slightly lower priority, but more importantly, can be 2285 * fragmented so that it'll allow other activities to run. 2286 */ 2287 if (fw_has_capa(&mvm->fw->ucode_capa, 2288 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2289 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2290 min_duration, false); 2291 else 2292 iwl_mvm_protect_session(mvm, vif, duration, 2293 min_duration, 500, false); 2294 } 2295 2296 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2297 struct ieee80211_vif *vif, 2298 struct ieee80211_bss_conf *bss_conf, 2299 u64 changes) 2300 { 2301 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2302 int ret; 2303 2304 /* 2305 * Re-calculate the tsf id, as the leader-follower relations depend 2306 * on the beacon interval, which was not known when the station 2307 * interface was added. 2308 */ 2309 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2310 if ((vif->bss_conf.he_support && 2311 !iwlwifi_mod_params.disable_11ax) || 2312 (vif->bss_conf.eht_support && 2313 !iwlwifi_mod_params.disable_11be)) 2314 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2315 2316 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2317 } 2318 2319 /* Update MU EDCA params */ 2320 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2321 vif->cfg.assoc && 2322 ((vif->bss_conf.he_support && 2323 !iwlwifi_mod_params.disable_11ax) || 2324 (vif->bss_conf.eht_support && 2325 !iwlwifi_mod_params.disable_11be))) 2326 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2327 2328 /* 2329 * If we're not associated yet, take the (new) BSSID before associating 2330 * so the firmware knows. If we're already associated, then use the old 2331 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2332 * branch for disassociation below. 2333 */ 2334 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2335 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2336 2337 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2338 if (ret) 2339 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2340 2341 /* after sending it once, adopt mac80211 data */ 2342 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2343 mvmvif->associated = vif->cfg.assoc; 2344 2345 if (changes & BSS_CHANGED_ASSOC) { 2346 if (vif->cfg.assoc) { 2347 /* clear statistics to get clean beacon counter */ 2348 iwl_mvm_request_statistics(mvm, true); 2349 memset(&mvmvif->beacon_stats, 0, 2350 sizeof(mvmvif->beacon_stats)); 2351 2352 /* add quota for this interface */ 2353 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2354 if (ret) { 2355 IWL_ERR(mvm, "failed to update quotas\n"); 2356 return; 2357 } 2358 2359 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2360 &mvm->status) && 2361 !fw_has_capa(&mvm->fw->ucode_capa, 2362 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2363 /* 2364 * If we're restarting then the firmware will 2365 * obviously have lost synchronisation with 2366 * the AP. It will attempt to synchronise by 2367 * itself, but we can make it more reliable by 2368 * scheduling a session protection time event. 2369 * 2370 * The firmware needs to receive a beacon to 2371 * catch up with synchronisation, use 110% of 2372 * the beacon interval. 2373 * 2374 * Set a large maximum delay to allow for more 2375 * than a single interface. 2376 * 2377 * For new firmware versions, rely on the 2378 * firmware. This is relevant for DCM scenarios 2379 * only anyway. 2380 */ 2381 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2382 iwl_mvm_protect_session(mvm, vif, dur, dur, 2383 5 * dur, false); 2384 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2385 &mvm->status) && 2386 !vif->bss_conf.dtim_period) { 2387 /* 2388 * If we're not restarting and still haven't 2389 * heard a beacon (dtim period unknown) then 2390 * make sure we still have enough minimum time 2391 * remaining in the time event, since the auth 2392 * might actually have taken quite a while 2393 * (especially for SAE) and so the remaining 2394 * time could be small without us having heard 2395 * a beacon yet. 2396 */ 2397 iwl_mvm_protect_assoc(mvm, vif, 0); 2398 } 2399 2400 iwl_mvm_sf_update(mvm, vif, false); 2401 iwl_mvm_power_vif_assoc(mvm, vif); 2402 if (vif->p2p) { 2403 iwl_mvm_update_smps(mvm, vif, 2404 IWL_MVM_SMPS_REQ_PROT, 2405 IEEE80211_SMPS_DYNAMIC); 2406 } 2407 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2408 iwl_mvm_mei_host_disassociated(mvm); 2409 /* 2410 * If update fails - SF might be running in associated 2411 * mode while disassociated - which is forbidden. 2412 */ 2413 ret = iwl_mvm_sf_update(mvm, vif, false); 2414 WARN_ONCE(ret && 2415 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2416 &mvm->status), 2417 "Failed to update SF upon disassociation\n"); 2418 2419 /* 2420 * If we get an assert during the connection (after the 2421 * station has been added, but before the vif is set 2422 * to associated), mac80211 will re-add the station and 2423 * then configure the vif. Since the vif is not 2424 * associated, we would remove the station here and 2425 * this would fail the recovery. 2426 */ 2427 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2428 &mvm->status)) { 2429 /* first remove remaining keys */ 2430 iwl_mvm_sec_key_remove_ap(mvm, vif); 2431 2432 /* 2433 * Remove AP station now that 2434 * the MAC is unassoc 2435 */ 2436 ret = iwl_mvm_rm_sta_id(mvm, vif, 2437 mvmvif->ap_sta_id); 2438 if (ret) 2439 IWL_ERR(mvm, 2440 "failed to remove AP station\n"); 2441 2442 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2443 } 2444 2445 /* remove quota for this interface */ 2446 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2447 if (ret) 2448 IWL_ERR(mvm, "failed to update quotas\n"); 2449 2450 /* this will take the cleared BSSID from bss_conf */ 2451 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2452 if (ret) 2453 IWL_ERR(mvm, 2454 "failed to update MAC %pM (clear after unassoc)\n", 2455 vif->addr); 2456 } 2457 2458 /* 2459 * The firmware tracks the MU-MIMO group on its own. 2460 * However, on HW restart we should restore this data. 2461 */ 2462 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2463 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2464 ret = iwl_mvm_update_mu_groups(mvm, vif); 2465 if (ret) 2466 IWL_ERR(mvm, 2467 "failed to update VHT MU_MIMO groups\n"); 2468 } 2469 2470 iwl_mvm_recalc_multicast(mvm); 2471 2472 /* reset rssi values */ 2473 mvmvif->bf_data.ave_beacon_signal = 0; 2474 2475 iwl_mvm_bt_coex_vif_change(mvm); 2476 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2477 IEEE80211_SMPS_AUTOMATIC); 2478 if (fw_has_capa(&mvm->fw->ucode_capa, 2479 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2480 iwl_mvm_config_scan(mvm); 2481 } 2482 2483 if (changes & BSS_CHANGED_BEACON_INFO) { 2484 /* 2485 * We received a beacon from the associated AP so 2486 * remove the session protection. 2487 */ 2488 iwl_mvm_stop_session_protection(mvm, vif); 2489 2490 iwl_mvm_sf_update(mvm, vif, false); 2491 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2492 } 2493 2494 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2495 /* 2496 * Send power command on every beacon change, 2497 * because we may have not enabled beacon abort yet. 2498 */ 2499 BSS_CHANGED_BEACON_INFO)) { 2500 ret = iwl_mvm_power_update_mac(mvm); 2501 if (ret) 2502 IWL_ERR(mvm, "failed to update power mode\n"); 2503 } 2504 2505 if (changes & BSS_CHANGED_CQM) { 2506 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2507 /* reset cqm events tracking */ 2508 mvmvif->bf_data.last_cqm_event = 0; 2509 if (mvmvif->bf_data.bf_enabled) { 2510 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2511 if (ret) 2512 IWL_ERR(mvm, 2513 "failed to update CQM thresholds\n"); 2514 } 2515 } 2516 2517 if (changes & BSS_CHANGED_BANDWIDTH) 2518 iwl_mvm_apply_fw_smps_request(vif); 2519 } 2520 2521 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2522 struct ieee80211_vif *vif, 2523 struct ieee80211_bss_conf *link_conf) 2524 { 2525 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2526 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2527 int ret, i; 2528 2529 mutex_lock(&mvm->mutex); 2530 2531 /* Send the beacon template */ 2532 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2533 if (ret) 2534 goto out_unlock; 2535 2536 /* 2537 * Re-calculate the tsf id, as the leader-follower relations depend on 2538 * the beacon interval, which was not known when the AP interface 2539 * was added. 2540 */ 2541 if (vif->type == NL80211_IFTYPE_AP) 2542 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2543 2544 mvmvif->ap_assoc_sta_count = 0; 2545 2546 /* Add the mac context */ 2547 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2548 if (ret) 2549 goto out_unlock; 2550 2551 /* Perform the binding */ 2552 ret = iwl_mvm_binding_add_vif(mvm, vif); 2553 if (ret) 2554 goto out_remove; 2555 2556 /* 2557 * This is not very nice, but the simplest: 2558 * For older FWs adding the mcast sta before the bcast station may 2559 * cause assert 0x2b00. 2560 * This is fixed in later FW so make the order of removal depend on 2561 * the TLV 2562 */ 2563 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2564 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2565 if (ret) 2566 goto out_unbind; 2567 /* 2568 * Send the bcast station. At this stage the TBTT and DTIM time 2569 * events are added and applied to the scheduler 2570 */ 2571 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2572 if (ret) { 2573 iwl_mvm_rm_mcast_sta(mvm, vif); 2574 goto out_unbind; 2575 } 2576 } else { 2577 /* 2578 * Send the bcast station. At this stage the TBTT and DTIM time 2579 * events are added and applied to the scheduler 2580 */ 2581 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2582 if (ret) 2583 goto out_unbind; 2584 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2585 if (ret) { 2586 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2587 goto out_unbind; 2588 } 2589 } 2590 2591 /* must be set before quota calculations */ 2592 mvmvif->ap_ibss_active = true; 2593 2594 /* send all the early keys to the device now */ 2595 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2596 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2597 2598 if (!key) 2599 continue; 2600 2601 mvmvif->ap_early_keys[i] = NULL; 2602 2603 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2604 if (ret) 2605 goto out_quota_failed; 2606 } 2607 2608 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2609 iwl_mvm_vif_set_low_latency(mvmvif, true, 2610 LOW_LATENCY_VIF_TYPE); 2611 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2612 } 2613 2614 /* power updated needs to be done before quotas */ 2615 iwl_mvm_power_update_mac(mvm); 2616 2617 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2618 if (ret) 2619 goto out_quota_failed; 2620 2621 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2622 if (vif->p2p && mvm->p2p_device_vif) 2623 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2624 2625 iwl_mvm_bt_coex_vif_change(mvm); 2626 2627 /* we don't support TDLS during DCM */ 2628 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2629 iwl_mvm_teardown_tdls_peers(mvm); 2630 2631 iwl_mvm_ftm_restart_responder(mvm, vif); 2632 2633 goto out_unlock; 2634 2635 out_quota_failed: 2636 iwl_mvm_power_update_mac(mvm); 2637 mvmvif->ap_ibss_active = false; 2638 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2639 iwl_mvm_rm_mcast_sta(mvm, vif); 2640 out_unbind: 2641 iwl_mvm_binding_remove_vif(mvm, vif); 2642 out_remove: 2643 iwl_mvm_mac_ctxt_remove(mvm, vif); 2644 out_unlock: 2645 mutex_unlock(&mvm->mutex); 2646 return ret; 2647 } 2648 2649 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2650 struct ieee80211_vif *vif, 2651 struct ieee80211_bss_conf *link_conf) 2652 { 2653 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2654 } 2655 2656 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2657 struct ieee80211_vif *vif) 2658 { 2659 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2660 } 2661 2662 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2663 struct ieee80211_vif *vif, 2664 struct ieee80211_bss_conf *link_conf) 2665 { 2666 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2667 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2668 2669 iwl_mvm_prepare_mac_removal(mvm, vif); 2670 2671 mutex_lock(&mvm->mutex); 2672 2673 /* Handle AP stop while in CSA */ 2674 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2675 iwl_mvm_remove_time_event(mvm, mvmvif, 2676 &mvmvif->time_event_data); 2677 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2678 mvmvif->csa_countdown = false; 2679 } 2680 2681 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2682 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2683 mvm->csa_tx_block_bcn_timeout = 0; 2684 } 2685 2686 mvmvif->ap_ibss_active = false; 2687 mvm->ap_last_beacon_gp2 = 0; 2688 2689 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2690 iwl_mvm_vif_set_low_latency(mvmvif, false, 2691 LOW_LATENCY_VIF_TYPE); 2692 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2693 } 2694 2695 iwl_mvm_bt_coex_vif_change(mvm); 2696 2697 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2698 if (vif->p2p && mvm->p2p_device_vif) 2699 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2700 2701 iwl_mvm_update_quotas(mvm, false, NULL); 2702 2703 iwl_mvm_ftm_responder_clear(mvm, vif); 2704 2705 /* 2706 * This is not very nice, but the simplest: 2707 * For older FWs removing the mcast sta before the bcast station may 2708 * cause assert 0x2b00. 2709 * This is fixed in later FW (which will stop beaconing when removing 2710 * bcast station). 2711 * So make the order of removal depend on the TLV 2712 */ 2713 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2714 iwl_mvm_rm_mcast_sta(mvm, vif); 2715 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2716 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2717 iwl_mvm_rm_mcast_sta(mvm, vif); 2718 iwl_mvm_binding_remove_vif(mvm, vif); 2719 2720 iwl_mvm_power_update_mac(mvm); 2721 2722 iwl_mvm_mac_ctxt_remove(mvm, vif); 2723 2724 mutex_unlock(&mvm->mutex); 2725 } 2726 2727 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 2728 struct ieee80211_vif *vif, 2729 struct ieee80211_bss_conf *link_conf) 2730 { 2731 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 2732 } 2733 2734 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 2735 struct ieee80211_vif *vif) 2736 { 2737 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 2738 } 2739 2740 static void 2741 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2742 struct ieee80211_vif *vif, 2743 struct ieee80211_bss_conf *bss_conf, 2744 u64 changes) 2745 { 2746 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2747 2748 /* Changes will be applied when the AP/IBSS is started */ 2749 if (!mvmvif->ap_ibss_active) 2750 return; 2751 2752 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2753 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2754 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2755 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2756 2757 /* Need to send a new beacon template to the FW */ 2758 if (changes & BSS_CHANGED_BEACON && 2759 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2760 IWL_WARN(mvm, "Failed updating beacon data\n"); 2761 2762 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2763 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2764 2765 if (ret) 2766 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2767 ret); 2768 } 2769 2770 } 2771 2772 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2773 struct ieee80211_vif *vif, 2774 struct ieee80211_bss_conf *bss_conf, 2775 u64 changes) 2776 { 2777 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2778 2779 mutex_lock(&mvm->mutex); 2780 2781 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 2782 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2783 2784 switch (vif->type) { 2785 case NL80211_IFTYPE_STATION: 2786 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2787 break; 2788 case NL80211_IFTYPE_AP: 2789 case NL80211_IFTYPE_ADHOC: 2790 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2791 break; 2792 case NL80211_IFTYPE_MONITOR: 2793 if (changes & BSS_CHANGED_MU_GROUPS) 2794 iwl_mvm_update_mu_groups(mvm, vif); 2795 break; 2796 default: 2797 /* shouldn't happen */ 2798 WARN_ON_ONCE(1); 2799 } 2800 2801 if (changes & BSS_CHANGED_TXPOWER) { 2802 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 2803 bss_conf->txpower); 2804 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2805 } 2806 2807 mutex_unlock(&mvm->mutex); 2808 } 2809 2810 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2811 struct ieee80211_vif *vif, 2812 struct ieee80211_scan_request *hw_req) 2813 { 2814 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2815 int ret; 2816 2817 if (hw_req->req.n_channels == 0 || 2818 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2819 return -EINVAL; 2820 2821 mutex_lock(&mvm->mutex); 2822 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2823 mutex_unlock(&mvm->mutex); 2824 2825 return ret; 2826 } 2827 2828 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2829 struct ieee80211_vif *vif) 2830 { 2831 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2832 2833 mutex_lock(&mvm->mutex); 2834 2835 /* Due to a race condition, it's possible that mac80211 asks 2836 * us to stop a hw_scan when it's already stopped. This can 2837 * happen, for instance, if we stopped the scan ourselves, 2838 * called ieee80211_scan_completed() and the userspace called 2839 * cancel scan scan before ieee80211_scan_work() could run. 2840 * To handle that, simply return if the scan is not running. 2841 */ 2842 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2843 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2844 2845 mutex_unlock(&mvm->mutex); 2846 } 2847 2848 static void 2849 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2850 struct ieee80211_sta *sta, u16 tids, 2851 int num_frames, 2852 enum ieee80211_frame_release_type reason, 2853 bool more_data) 2854 { 2855 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2856 2857 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2858 2859 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2860 tids, more_data, false); 2861 } 2862 2863 static void 2864 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2865 struct ieee80211_sta *sta, u16 tids, 2866 int num_frames, 2867 enum ieee80211_frame_release_type reason, 2868 bool more_data) 2869 { 2870 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2871 2872 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2873 2874 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2875 tids, more_data, true); 2876 } 2877 2878 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2879 enum sta_notify_cmd cmd, 2880 struct ieee80211_sta *sta) 2881 { 2882 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2883 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2884 unsigned long txqs = 0, tids = 0; 2885 int tid; 2886 2887 /* 2888 * If we have TVQM then we get too high queue numbers - luckily 2889 * we really shouldn't get here with that because such hardware 2890 * should have firmware supporting buffer station offload. 2891 */ 2892 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2893 return; 2894 2895 spin_lock_bh(&mvmsta->lock); 2896 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2897 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2898 2899 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2900 continue; 2901 2902 __set_bit(tid_data->txq_id, &txqs); 2903 2904 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2905 continue; 2906 2907 __set_bit(tid, &tids); 2908 } 2909 2910 switch (cmd) { 2911 case STA_NOTIFY_SLEEP: 2912 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2913 ieee80211_sta_set_buffered(sta, tid, true); 2914 2915 if (txqs) 2916 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2917 /* 2918 * The fw updates the STA to be asleep. Tx packets on the Tx 2919 * queues to this station will not be transmitted. The fw will 2920 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2921 */ 2922 break; 2923 case STA_NOTIFY_AWAKE: 2924 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2925 break; 2926 2927 if (txqs) 2928 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2929 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2930 break; 2931 default: 2932 break; 2933 } 2934 spin_unlock_bh(&mvmsta->lock); 2935 } 2936 2937 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2938 struct ieee80211_vif *vif, 2939 enum sta_notify_cmd cmd, 2940 struct ieee80211_sta *sta) 2941 { 2942 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2943 } 2944 2945 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2946 { 2947 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2948 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2949 struct ieee80211_sta *sta; 2950 struct iwl_mvm_sta *mvmsta; 2951 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2952 2953 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 2954 return; 2955 2956 rcu_read_lock(); 2957 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2958 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2959 rcu_read_unlock(); 2960 return; 2961 } 2962 2963 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2964 2965 if (!mvmsta->vif || 2966 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2967 rcu_read_unlock(); 2968 return; 2969 } 2970 2971 if (mvmsta->sleeping != sleeping) { 2972 mvmsta->sleeping = sleeping; 2973 __iwl_mvm_mac_sta_notify(mvm->hw, 2974 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2975 sta); 2976 ieee80211_sta_ps_transition(sta, sleeping); 2977 } 2978 2979 if (sleeping) { 2980 switch (notif->type) { 2981 case IWL_MVM_PM_EVENT_AWAKE: 2982 case IWL_MVM_PM_EVENT_ASLEEP: 2983 break; 2984 case IWL_MVM_PM_EVENT_UAPSD: 2985 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2986 break; 2987 case IWL_MVM_PM_EVENT_PS_POLL: 2988 ieee80211_sta_pspoll(sta); 2989 break; 2990 default: 2991 break; 2992 } 2993 } 2994 2995 rcu_read_unlock(); 2996 } 2997 2998 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2999 struct ieee80211_vif *vif, 3000 struct ieee80211_sta *sta) 3001 { 3002 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3003 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3004 3005 /* 3006 * This is called before mac80211 does RCU synchronisation, 3007 * so here we already invalidate our internal RCU-protected 3008 * station pointer. The rest of the code will thus no longer 3009 * be able to find the station this way, and we don't rely 3010 * on further RCU synchronisation after the sta_state() 3011 * callback deleted the station. 3012 */ 3013 mutex_lock(&mvm->mutex); 3014 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 3015 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 3016 ERR_PTR(-ENOENT)); 3017 3018 mutex_unlock(&mvm->mutex); 3019 } 3020 3021 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3022 const u8 *bssid) 3023 { 3024 int i; 3025 3026 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3027 struct iwl_mvm_tcm_mac *mdata; 3028 3029 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3030 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3031 mdata->opened_rx_ba_sessions = false; 3032 } 3033 3034 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3035 return; 3036 3037 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3038 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3039 return; 3040 } 3041 3042 if (!vif->p2p && 3043 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3044 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3045 return; 3046 } 3047 3048 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3049 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3050 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3051 return; 3052 } 3053 } 3054 3055 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3056 } 3057 3058 static void 3059 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3060 struct ieee80211_vif *vif, u8 *peer_addr, 3061 enum nl80211_tdls_operation action) 3062 { 3063 struct iwl_fw_dbg_trigger_tlv *trig; 3064 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3065 3066 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3067 FW_DBG_TRIGGER_TDLS); 3068 if (!trig) 3069 return; 3070 3071 tdls_trig = (void *)trig->data; 3072 3073 if (!(tdls_trig->action_bitmap & BIT(action))) 3074 return; 3075 3076 if (tdls_trig->peer_mode && 3077 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3078 return; 3079 3080 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3081 "TDLS event occurred, peer %pM, action %d", 3082 peer_addr, action); 3083 } 3084 3085 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3086 bool tolerated; 3087 }; 3088 3089 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3090 struct cfg80211_bss *bss, 3091 void *_data) 3092 { 3093 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3094 const struct cfg80211_bss_ies *ies; 3095 const struct element *elem; 3096 3097 rcu_read_lock(); 3098 ies = rcu_dereference(bss->ies); 3099 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3100 ies->len); 3101 3102 if (!elem || elem->datalen < 10 || 3103 !(elem->data[10] & 3104 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3105 data->tolerated = false; 3106 } 3107 rcu_read_unlock(); 3108 } 3109 3110 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3111 struct ieee80211_vif *vif) 3112 { 3113 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3114 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3115 .tolerated = true, 3116 }; 3117 3118 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3119 mvmvif->he_ru_2mhz_block = false; 3120 return; 3121 } 3122 3123 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3124 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3125 &iter_data); 3126 3127 /* 3128 * If there is at least one AP on radar channel that cannot 3129 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3130 */ 3131 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3132 } 3133 3134 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3135 struct ieee80211_vif *vif) 3136 { 3137 struct ieee80211_supported_band *sband; 3138 const struct ieee80211_sta_he_cap *he_cap; 3139 3140 if (vif->type != NL80211_IFTYPE_STATION) 3141 return; 3142 3143 if (!mvm->cca_40mhz_workaround) 3144 return; 3145 3146 /* decrement and check that we reached zero */ 3147 mvm->cca_40mhz_workaround--; 3148 if (mvm->cca_40mhz_workaround) 3149 return; 3150 3151 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3152 3153 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3154 3155 he_cap = ieee80211_get_he_iftype_cap(sband, 3156 ieee80211_vif_type_p2p(vif)); 3157 3158 if (he_cap) { 3159 /* we know that ours is writable */ 3160 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3161 3162 he->he_cap_elem.phy_cap_info[0] |= 3163 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3164 } 3165 } 3166 3167 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3168 struct ieee80211_vif *vif, 3169 struct iwl_mvm_sta *mvm_sta) 3170 { 3171 #if IS_ENABLED(CONFIG_IWLMEI) 3172 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3173 struct iwl_mei_conn_info conn_info = { 3174 .ssid_len = vif->cfg.ssid_len, 3175 .channel = vif->bss_conf.chandef.chan->hw_value, 3176 }; 3177 3178 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3179 return; 3180 3181 if (!mvm->mei_registered) 3182 return; 3183 3184 switch (mvm_sta->pairwise_cipher) { 3185 case WLAN_CIPHER_SUITE_TKIP: 3186 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3187 break; 3188 case WLAN_CIPHER_SUITE_CCMP: 3189 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3190 break; 3191 case WLAN_CIPHER_SUITE_GCMP: 3192 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3193 break; 3194 case WLAN_CIPHER_SUITE_GCMP_256: 3195 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3196 break; 3197 case 0: 3198 /* open profile */ 3199 break; 3200 default: 3201 /* cipher not supported, don't send anything to iwlmei */ 3202 return; 3203 } 3204 3205 switch (mvmvif->rekey_data.akm) { 3206 case WLAN_AKM_SUITE_SAE & 0xff: 3207 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3208 break; 3209 case WLAN_AKM_SUITE_PSK & 0xff: 3210 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3211 break; 3212 case WLAN_AKM_SUITE_8021X & 0xff: 3213 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3214 break; 3215 case 0: 3216 /* open profile */ 3217 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3218 break; 3219 default: 3220 /* auth method / AKM not supported */ 3221 /* TODO: All the FT vesions of these? */ 3222 return; 3223 } 3224 3225 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3226 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3227 3228 /* TODO: add support for collocated AP data */ 3229 iwl_mei_host_associated(&conn_info, NULL); 3230 #endif 3231 } 3232 3233 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3234 struct ieee80211_vif *vif, 3235 struct ieee80211_sta *sta, 3236 enum ieee80211_sta_state old_state, 3237 enum ieee80211_sta_state new_state) 3238 { 3239 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3240 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3241 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3242 int ret; 3243 3244 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3245 sta->addr, old_state, new_state); 3246 3247 /* this would be a mac80211 bug ... but don't crash */ 3248 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3249 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) ? 0 : -EINVAL; 3250 3251 /* 3252 * If we are in a STA removal flow and in DQA mode: 3253 * 3254 * This is after the sync_rcu part, so the queues have already been 3255 * flushed. No more TXs on their way in mac80211's path, and no more in 3256 * the queues. 3257 * Also, we won't be getting any new TX frames for this station. 3258 * What we might have are deferred TX frames that need to be taken care 3259 * of. 3260 * 3261 * Drop any still-queued deferred-frame before removing the STA, and 3262 * make sure the worker is no longer handling frames for this STA. 3263 */ 3264 if (old_state == IEEE80211_STA_NONE && 3265 new_state == IEEE80211_STA_NOTEXIST) { 3266 flush_work(&mvm->add_stream_wk); 3267 3268 /* 3269 * No need to make sure deferred TX indication is off since the 3270 * worker will already remove it if it was on 3271 */ 3272 3273 /* 3274 * Additionally, reset the 40 MHz capability if we disconnected 3275 * from the AP now. 3276 */ 3277 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3278 } 3279 3280 mutex_lock(&mvm->mutex); 3281 /* track whether or not the station is associated */ 3282 mvm_sta->sta_state = new_state; 3283 3284 if (old_state == IEEE80211_STA_NOTEXIST && 3285 new_state == IEEE80211_STA_NONE) { 3286 /* 3287 * Firmware bug - it'll crash if the beacon interval is less 3288 * than 16. We can't avoid connecting at all, so refuse the 3289 * station state change, this will cause mac80211 to abandon 3290 * attempts to connect to this AP, and eventually wpa_s will 3291 * blocklist the AP... 3292 */ 3293 if (vif->type == NL80211_IFTYPE_STATION && 3294 vif->bss_conf.beacon_int < 16) { 3295 IWL_ERR(mvm, 3296 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3297 sta->addr, vif->bss_conf.beacon_int); 3298 ret = -EINVAL; 3299 goto out_unlock; 3300 } 3301 3302 if (vif->type == NL80211_IFTYPE_STATION) 3303 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3304 3305 if (sta->tdls && 3306 (vif->p2p || 3307 iwl_mvm_tdls_sta_count(mvm, NULL) == 3308 IWL_MVM_TDLS_STA_COUNT || 3309 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3310 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3311 ret = -EBUSY; 3312 goto out_unlock; 3313 } 3314 3315 ret = iwl_mvm_add_sta(mvm, vif, sta); 3316 if (sta->tdls && ret == 0) { 3317 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3318 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3319 NL80211_TDLS_SETUP); 3320 } 3321 3322 sta->deflink.agg.max_rc_amsdu_len = 1; 3323 } else if (old_state == IEEE80211_STA_NONE && 3324 new_state == IEEE80211_STA_AUTH) { 3325 /* 3326 * EBS may be disabled due to previous failures reported by FW. 3327 * Reset EBS status here assuming environment has been changed. 3328 */ 3329 mvm->last_ebs_successful = true; 3330 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3331 ret = 0; 3332 } else if (old_state == IEEE80211_STA_AUTH && 3333 new_state == IEEE80211_STA_ASSOC) { 3334 if (vif->type == NL80211_IFTYPE_AP) { 3335 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3336 mvmvif->ap_assoc_sta_count++; 3337 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3338 if ((vif->bss_conf.he_support && 3339 !iwlwifi_mod_params.disable_11ax) || 3340 (vif->bss_conf.eht_support && 3341 !iwlwifi_mod_params.disable_11be)) 3342 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3343 } else if (vif->type == NL80211_IFTYPE_STATION) { 3344 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3345 3346 mvmvif->he_ru_2mhz_block = false; 3347 if (sta->deflink.he_cap.has_he) 3348 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3349 3350 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3351 } 3352 3353 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3354 false); 3355 ret = iwl_mvm_update_sta(mvm, vif, sta); 3356 } else if (old_state == IEEE80211_STA_ASSOC && 3357 new_state == IEEE80211_STA_AUTHORIZED) { 3358 ret = 0; 3359 3360 /* we don't support TDLS during DCM */ 3361 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3362 iwl_mvm_teardown_tdls_peers(mvm); 3363 3364 if (sta->tdls) { 3365 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3366 NL80211_TDLS_ENABLE_LINK); 3367 } else { 3368 /* enable beacon filtering */ 3369 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3370 3371 mvmvif->authorized = 1; 3372 3373 /* 3374 * Now that the station is authorized, i.e., keys were already 3375 * installed, need to indicate to the FW that 3376 * multicast data frames can be forwarded to the driver 3377 */ 3378 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3379 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3380 } 3381 3382 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3383 true); 3384 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3385 new_state == IEEE80211_STA_ASSOC) { 3386 /* once we move into assoc state, need to update rate scale to 3387 * disable using wide bandwidth 3388 */ 3389 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3390 false); 3391 if (!sta->tdls) { 3392 /* Multicast data frames are no longer allowed */ 3393 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3394 3395 /* 3396 * Set this after the above iwl_mvm_mac_ctxt_changed() 3397 * to avoid sending high prio again for a little time. 3398 */ 3399 mvmvif->authorized = 0; 3400 3401 /* disable beacon filtering */ 3402 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3403 WARN_ON(ret && 3404 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3405 &mvm->status)); 3406 } 3407 ret = 0; 3408 } else if (old_state == IEEE80211_STA_ASSOC && 3409 new_state == IEEE80211_STA_AUTH) { 3410 if (vif->type == NL80211_IFTYPE_AP) { 3411 mvmvif->ap_assoc_sta_count--; 3412 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3413 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3414 iwl_mvm_stop_session_protection(mvm, vif); 3415 ret = 0; 3416 } else if (old_state == IEEE80211_STA_AUTH && 3417 new_state == IEEE80211_STA_NONE) { 3418 ret = 0; 3419 } else if (old_state == IEEE80211_STA_NONE && 3420 new_state == IEEE80211_STA_NOTEXIST) { 3421 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3422 iwl_mvm_stop_session_protection(mvm, vif); 3423 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3424 if (sta->tdls) { 3425 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3426 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3427 NL80211_TDLS_DISABLE_LINK); 3428 } 3429 3430 if (unlikely(ret && 3431 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3432 &mvm->status))) 3433 ret = 0; 3434 } else { 3435 ret = -EIO; 3436 } 3437 out_unlock: 3438 mutex_unlock(&mvm->mutex); 3439 3440 if (sta->tdls && ret == 0) { 3441 if (old_state == IEEE80211_STA_NOTEXIST && 3442 new_state == IEEE80211_STA_NONE) 3443 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3444 else if (old_state == IEEE80211_STA_NONE && 3445 new_state == IEEE80211_STA_NOTEXIST) 3446 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3447 } 3448 3449 return ret; 3450 } 3451 3452 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3453 { 3454 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3455 3456 mvm->rts_threshold = value; 3457 3458 return 0; 3459 } 3460 3461 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3462 struct ieee80211_vif *vif, 3463 struct ieee80211_sta *sta, u32 changed) 3464 { 3465 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3466 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3467 3468 if (changed & (IEEE80211_RC_BW_CHANGED | 3469 IEEE80211_RC_SUPP_RATES_CHANGED | 3470 IEEE80211_RC_NSS_CHANGED)) 3471 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3472 true); 3473 3474 if (vif->type == NL80211_IFTYPE_STATION && 3475 changed & IEEE80211_RC_NSS_CHANGED) 3476 iwl_mvm_sf_update(mvm, vif, false); 3477 } 3478 3479 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3480 struct ieee80211_vif *vif, 3481 unsigned int link_id, u16 ac, 3482 const struct ieee80211_tx_queue_params *params) 3483 { 3484 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3485 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3486 3487 mvmvif->queue_params[ac] = *params; 3488 3489 /* 3490 * No need to update right away, we'll get BSS_CHANGED_QOS 3491 * The exception is P2P_DEVICE interface which needs immediate update. 3492 */ 3493 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3494 int ret; 3495 3496 mutex_lock(&mvm->mutex); 3497 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3498 mutex_unlock(&mvm->mutex); 3499 return ret; 3500 } 3501 return 0; 3502 } 3503 3504 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3505 struct ieee80211_vif *vif, 3506 struct ieee80211_prep_tx_info *info) 3507 { 3508 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3509 3510 mutex_lock(&mvm->mutex); 3511 iwl_mvm_protect_assoc(mvm, vif, info->duration); 3512 mutex_unlock(&mvm->mutex); 3513 } 3514 3515 static void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 3516 struct ieee80211_vif *vif, 3517 struct ieee80211_prep_tx_info *info) 3518 { 3519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3520 3521 /* for successful cases (auth/assoc), don't cancel session protection */ 3522 if (info->success) 3523 return; 3524 3525 mutex_lock(&mvm->mutex); 3526 iwl_mvm_stop_session_protection(mvm, vif); 3527 mutex_unlock(&mvm->mutex); 3528 } 3529 3530 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3531 struct ieee80211_vif *vif, 3532 struct cfg80211_sched_scan_request *req, 3533 struct ieee80211_scan_ies *ies) 3534 { 3535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3536 3537 int ret; 3538 3539 mutex_lock(&mvm->mutex); 3540 3541 if (!vif->cfg.idle) { 3542 ret = -EBUSY; 3543 goto out; 3544 } 3545 3546 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3547 3548 out: 3549 mutex_unlock(&mvm->mutex); 3550 return ret; 3551 } 3552 3553 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3554 struct ieee80211_vif *vif) 3555 { 3556 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3557 int ret; 3558 3559 mutex_lock(&mvm->mutex); 3560 3561 /* Due to a race condition, it's possible that mac80211 asks 3562 * us to stop a sched_scan when it's already stopped. This 3563 * can happen, for instance, if we stopped the scan ourselves, 3564 * called ieee80211_sched_scan_stopped() and the userspace called 3565 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3566 * could run. To handle this, simply return if the scan is 3567 * not running. 3568 */ 3569 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3570 mutex_unlock(&mvm->mutex); 3571 return 0; 3572 } 3573 3574 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3575 mutex_unlock(&mvm->mutex); 3576 iwl_mvm_wait_for_async_handlers(mvm); 3577 3578 return ret; 3579 } 3580 3581 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3582 enum set_key_cmd cmd, 3583 struct ieee80211_vif *vif, 3584 struct ieee80211_sta *sta, 3585 struct ieee80211_key_conf *key) 3586 { 3587 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3588 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3589 struct iwl_mvm_sta *mvmsta = NULL; 3590 struct iwl_mvm_key_pn *ptk_pn; 3591 int keyidx = key->keyidx; 3592 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 3593 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 3594 int ret, i; 3595 u8 key_offset; 3596 3597 if (sta) 3598 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3599 3600 switch (key->cipher) { 3601 case WLAN_CIPHER_SUITE_TKIP: 3602 if (!mvm->trans->trans_cfg->gen2) { 3603 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3604 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3605 } else if (vif->type == NL80211_IFTYPE_STATION) { 3606 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3607 } else { 3608 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3609 return -EOPNOTSUPP; 3610 } 3611 break; 3612 case WLAN_CIPHER_SUITE_CCMP: 3613 case WLAN_CIPHER_SUITE_GCMP: 3614 case WLAN_CIPHER_SUITE_GCMP_256: 3615 if (!iwl_mvm_has_new_tx_api(mvm)) 3616 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3617 break; 3618 case WLAN_CIPHER_SUITE_AES_CMAC: 3619 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3620 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3621 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3622 break; 3623 case WLAN_CIPHER_SUITE_WEP40: 3624 case WLAN_CIPHER_SUITE_WEP104: 3625 if (vif->type == NL80211_IFTYPE_STATION) 3626 break; 3627 if (iwl_mvm_has_new_tx_api(mvm)) 3628 return -EOPNOTSUPP; 3629 /* support HW crypto on TX */ 3630 return 0; 3631 default: 3632 return -EOPNOTSUPP; 3633 } 3634 3635 switch (cmd) { 3636 case SET_KEY: 3637 if (keyidx == 6 || keyidx == 7) 3638 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 3639 key); 3640 3641 if ((vif->type == NL80211_IFTYPE_ADHOC || 3642 vif->type == NL80211_IFTYPE_AP) && !sta) { 3643 /* 3644 * GTK on AP interface is a TX-only key, return 0; 3645 * on IBSS they're per-station and because we're lazy 3646 * we don't support them for RX, so do the same. 3647 * CMAC/GMAC in AP/IBSS modes must be done in software. 3648 */ 3649 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3650 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3651 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3652 ret = -EOPNOTSUPP; 3653 break; 3654 } 3655 3656 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3657 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3658 !iwl_mvm_has_new_tx_api(mvm)) { 3659 key->hw_key_idx = STA_KEY_IDX_INVALID; 3660 ret = 0; 3661 break; 3662 } 3663 3664 if (!mvmvif->ap_ibss_active) { 3665 for (i = 0; 3666 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3667 i++) { 3668 if (!mvmvif->ap_early_keys[i]) { 3669 mvmvif->ap_early_keys[i] = key; 3670 break; 3671 } 3672 } 3673 3674 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3675 ret = -ENOSPC; 3676 else 3677 ret = 0; 3678 3679 break; 3680 } 3681 } 3682 3683 /* During FW restart, in order to restore the state as it was, 3684 * don't try to reprogram keys we previously failed for. 3685 */ 3686 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3687 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3688 IWL_DEBUG_MAC80211(mvm, 3689 "skip invalid idx key programming during restart\n"); 3690 ret = 0; 3691 break; 3692 } 3693 3694 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3695 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3696 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3697 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3698 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3699 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3700 struct ieee80211_key_seq seq; 3701 int tid, q; 3702 3703 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3704 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3705 mvm->trans->num_rx_queues), 3706 GFP_KERNEL); 3707 if (!ptk_pn) { 3708 ret = -ENOMEM; 3709 break; 3710 } 3711 3712 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3713 ieee80211_get_key_rx_seq(key, tid, &seq); 3714 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3715 memcpy(ptk_pn->q[q].pn[tid], 3716 seq.ccmp.pn, 3717 IEEE80211_CCMP_PN_LEN); 3718 } 3719 3720 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3721 } 3722 3723 /* in HW restart reuse the index, otherwise request a new one */ 3724 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3725 key_offset = key->hw_key_idx; 3726 else 3727 key_offset = STA_KEY_IDX_INVALID; 3728 3729 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 3730 mvmsta->pairwise_cipher = key->cipher; 3731 3732 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3733 3734 if (sec_key_ver) 3735 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 3736 else 3737 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3738 3739 if (ret) { 3740 IWL_WARN(mvm, "set key failed\n"); 3741 key->hw_key_idx = STA_KEY_IDX_INVALID; 3742 /* 3743 * can't add key for RX, but we don't need it 3744 * in the device for TX so still return 0, 3745 * unless we have new TX API where we cannot 3746 * put key material into the TX_CMD 3747 */ 3748 if (iwl_mvm_has_new_tx_api(mvm)) 3749 ret = -EOPNOTSUPP; 3750 else 3751 ret = 0; 3752 } 3753 3754 break; 3755 case DISABLE_KEY: 3756 if (keyidx == 6 || keyidx == 7) 3757 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 3758 NULL); 3759 3760 ret = -ENOENT; 3761 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3762 if (mvmvif->ap_early_keys[i] == key) { 3763 mvmvif->ap_early_keys[i] = NULL; 3764 ret = 0; 3765 } 3766 } 3767 3768 /* found in pending list - don't do anything else */ 3769 if (ret == 0) 3770 break; 3771 3772 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3773 ret = 0; 3774 break; 3775 } 3776 3777 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3778 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3779 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3780 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3781 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3782 ptk_pn = rcu_dereference_protected( 3783 mvmsta->ptk_pn[keyidx], 3784 lockdep_is_held(&mvm->mutex)); 3785 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3786 if (ptk_pn) 3787 kfree_rcu(ptk_pn, rcu_head); 3788 } 3789 3790 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3791 if (sec_key_ver) 3792 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 3793 else 3794 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3795 break; 3796 default: 3797 ret = -EINVAL; 3798 } 3799 3800 return ret; 3801 } 3802 3803 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3804 enum set_key_cmd cmd, 3805 struct ieee80211_vif *vif, 3806 struct ieee80211_sta *sta, 3807 struct ieee80211_key_conf *key) 3808 { 3809 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3810 int ret; 3811 3812 mutex_lock(&mvm->mutex); 3813 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3814 mutex_unlock(&mvm->mutex); 3815 3816 return ret; 3817 } 3818 3819 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3820 struct ieee80211_vif *vif, 3821 struct ieee80211_key_conf *keyconf, 3822 struct ieee80211_sta *sta, 3823 u32 iv32, u16 *phase1key) 3824 { 3825 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3826 3827 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3828 return; 3829 3830 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3831 } 3832 3833 3834 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3835 struct iwl_rx_packet *pkt, void *data) 3836 { 3837 struct iwl_mvm *mvm = 3838 container_of(notif_wait, struct iwl_mvm, notif_wait); 3839 struct iwl_hs20_roc_res *resp; 3840 int resp_len = iwl_rx_packet_payload_len(pkt); 3841 struct iwl_mvm_time_event_data *te_data = data; 3842 3843 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3844 return true; 3845 3846 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3847 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3848 return true; 3849 } 3850 3851 resp = (void *)pkt->data; 3852 3853 IWL_DEBUG_TE(mvm, 3854 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3855 resp->status, resp->event_unique_id); 3856 3857 te_data->uid = le32_to_cpu(resp->event_unique_id); 3858 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3859 te_data->uid); 3860 3861 spin_lock_bh(&mvm->time_event_lock); 3862 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3863 spin_unlock_bh(&mvm->time_event_lock); 3864 3865 return true; 3866 } 3867 3868 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3869 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3870 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3871 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3872 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3873 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3874 struct ieee80211_channel *channel, 3875 struct ieee80211_vif *vif, 3876 int duration) 3877 { 3878 int res; 3879 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3880 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3881 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3882 struct iwl_notification_wait wait_time_event; 3883 u32 dtim_interval = vif->bss_conf.dtim_period * 3884 vif->bss_conf.beacon_int; 3885 u32 req_dur, delay; 3886 struct iwl_hs20_roc_req aux_roc_req = { 3887 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3888 .id_and_color = 3889 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3890 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3891 }; 3892 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3893 &aux_roc_req.channel_info); 3894 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3895 3896 /* Set the channel info data */ 3897 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3898 iwl_mvm_phy_band_from_nl80211(channel->band), 3899 IWL_PHY_CHANNEL_MODE20, 3900 0); 3901 3902 /* Set the time and duration */ 3903 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3904 3905 delay = AUX_ROC_MIN_DELAY; 3906 req_dur = MSEC_TO_TU(duration); 3907 3908 /* 3909 * If we are associated we want the delay time to be at least one 3910 * dtim interval so that the FW can wait until after the DTIM and 3911 * then start the time event, this will potentially allow us to 3912 * remain off-channel for the max duration. 3913 * Since we want to use almost a whole dtim interval we would also 3914 * like the delay to be for 2-3 dtim intervals, in case there are 3915 * other time events with higher priority. 3916 */ 3917 if (vif->cfg.assoc) { 3918 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3919 /* We cannot remain off-channel longer than the DTIM interval */ 3920 if (dtim_interval <= req_dur) { 3921 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3922 if (req_dur <= AUX_ROC_MIN_DURATION) 3923 req_dur = dtim_interval - 3924 AUX_ROC_MIN_SAFETY_BUFFER; 3925 } 3926 } 3927 3928 tail->duration = cpu_to_le32(req_dur); 3929 tail->apply_time_max_delay = cpu_to_le32(delay); 3930 3931 IWL_DEBUG_TE(mvm, 3932 "ROC: Requesting to remain on channel %u for %ums\n", 3933 channel->hw_value, req_dur); 3934 IWL_DEBUG_TE(mvm, 3935 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3936 duration, delay, dtim_interval); 3937 3938 /* Set the node address */ 3939 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3940 3941 lockdep_assert_held(&mvm->mutex); 3942 3943 spin_lock_bh(&mvm->time_event_lock); 3944 3945 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3946 spin_unlock_bh(&mvm->time_event_lock); 3947 return -EIO; 3948 } 3949 3950 te_data->vif = vif; 3951 te_data->duration = duration; 3952 te_data->id = HOT_SPOT_CMD; 3953 3954 spin_unlock_bh(&mvm->time_event_lock); 3955 3956 /* 3957 * Use a notification wait, which really just processes the 3958 * command response and doesn't wait for anything, in order 3959 * to be able to process the response and get the UID inside 3960 * the RX path. Using CMD_WANT_SKB doesn't work because it 3961 * stores the buffer and then wakes up this thread, by which 3962 * time another notification (that the time event started) 3963 * might already be processed unsuccessfully. 3964 */ 3965 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3966 time_event_response, 3967 ARRAY_SIZE(time_event_response), 3968 iwl_mvm_rx_aux_roc, te_data); 3969 3970 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3971 &aux_roc_req); 3972 3973 if (res) { 3974 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3975 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3976 goto out_clear_te; 3977 } 3978 3979 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3980 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3981 /* should never fail */ 3982 WARN_ON_ONCE(res); 3983 3984 if (res) { 3985 out_clear_te: 3986 spin_lock_bh(&mvm->time_event_lock); 3987 iwl_mvm_te_clear_data(mvm, te_data); 3988 spin_unlock_bh(&mvm->time_event_lock); 3989 } 3990 3991 return res; 3992 } 3993 3994 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3995 struct ieee80211_vif *vif, 3996 struct ieee80211_channel *channel, 3997 int duration, 3998 enum ieee80211_roc_type type) 3999 { 4000 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4001 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4002 struct cfg80211_chan_def chandef; 4003 struct iwl_mvm_phy_ctxt *phy_ctxt; 4004 bool band_change_removal; 4005 int ret, i; 4006 4007 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4008 duration, type); 4009 4010 /* 4011 * Flush the done work, just in case it's still pending, so that 4012 * the work it does can complete and we can accept new frames. 4013 */ 4014 flush_work(&mvm->roc_done_wk); 4015 4016 mutex_lock(&mvm->mutex); 4017 4018 switch (vif->type) { 4019 case NL80211_IFTYPE_STATION: 4020 if (fw_has_capa(&mvm->fw->ucode_capa, 4021 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4022 /* Use aux roc framework (HS20) */ 4023 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) { 4024 u32 lmac_id; 4025 4026 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, 4027 channel->band); 4028 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4029 if (WARN(ret, 4030 "Failed to allocate aux station")) 4031 goto out_unlock; 4032 } 4033 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4034 vif, duration); 4035 goto out_unlock; 4036 } 4037 IWL_ERR(mvm, "hotspot not supported\n"); 4038 ret = -EINVAL; 4039 goto out_unlock; 4040 case NL80211_IFTYPE_P2P_DEVICE: 4041 /* handle below */ 4042 break; 4043 default: 4044 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4045 ret = -EINVAL; 4046 goto out_unlock; 4047 } 4048 4049 for (i = 0; i < NUM_PHY_CTX; i++) { 4050 phy_ctxt = &mvm->phy_ctxts[i]; 4051 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 4052 continue; 4053 4054 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4055 /* 4056 * Unbind the P2P_DEVICE from the current PHY context, 4057 * and if the PHY context is not used remove it. 4058 */ 4059 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4060 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4061 goto out_unlock; 4062 4063 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4064 4065 /* Bind the P2P_DEVICE to the current PHY Context */ 4066 mvmvif->phy_ctxt = phy_ctxt; 4067 4068 ret = iwl_mvm_binding_add_vif(mvm, vif); 4069 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4070 goto out_unlock; 4071 4072 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4073 goto schedule_time_event; 4074 } 4075 } 4076 4077 /* Need to update the PHY context only if the ROC channel changed */ 4078 if (channel == mvmvif->phy_ctxt->channel) 4079 goto schedule_time_event; 4080 4081 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4082 4083 /* 4084 * Check if the remain-on-channel is on a different band and that 4085 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4086 * so, we'll need to release and then re-configure here, since we 4087 * must not remove a PHY context that's part of a binding. 4088 */ 4089 band_change_removal = 4090 fw_has_capa(&mvm->fw->ucode_capa, 4091 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4092 mvmvif->phy_ctxt->channel->band != chandef.chan->band; 4093 4094 if (mvmvif->phy_ctxt->ref == 1 && !band_change_removal) { 4095 /* 4096 * Change the PHY context configuration as it is currently 4097 * referenced only by the P2P Device MAC (and we can modify it) 4098 */ 4099 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 4100 &chandef, 1, 1); 4101 if (ret) 4102 goto out_unlock; 4103 } else { 4104 /* 4105 * The PHY context is shared with other MACs (or we're trying to 4106 * switch bands), so remove the P2P Device from the binding, 4107 * allocate an new PHY context and create a new binding. 4108 */ 4109 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4110 if (!phy_ctxt) { 4111 ret = -ENOSPC; 4112 goto out_unlock; 4113 } 4114 4115 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4116 1, 1); 4117 if (ret) { 4118 IWL_ERR(mvm, "Failed to change PHY context\n"); 4119 goto out_unlock; 4120 } 4121 4122 /* Unbind the P2P_DEVICE from the current PHY context */ 4123 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4124 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4125 goto out_unlock; 4126 4127 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4128 4129 /* Bind the P2P_DEVICE to the new allocated PHY context */ 4130 mvmvif->phy_ctxt = phy_ctxt; 4131 4132 ret = iwl_mvm_binding_add_vif(mvm, vif); 4133 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4134 goto out_unlock; 4135 4136 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4137 } 4138 4139 schedule_time_event: 4140 /* Schedule the time events */ 4141 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4142 4143 out_unlock: 4144 mutex_unlock(&mvm->mutex); 4145 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4146 return ret; 4147 } 4148 4149 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4150 struct ieee80211_vif *vif) 4151 { 4152 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4153 4154 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4155 4156 mutex_lock(&mvm->mutex); 4157 iwl_mvm_stop_roc(mvm, vif); 4158 mutex_unlock(&mvm->mutex); 4159 4160 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4161 return 0; 4162 } 4163 4164 struct iwl_mvm_ftm_responder_iter_data { 4165 bool responder; 4166 struct ieee80211_chanctx_conf *ctx; 4167 }; 4168 4169 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4170 struct ieee80211_vif *vif) 4171 { 4172 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4173 4174 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4175 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4176 data->responder = true; 4177 } 4178 4179 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4180 struct ieee80211_chanctx_conf *ctx) 4181 { 4182 struct iwl_mvm_ftm_responder_iter_data data = { 4183 .responder = false, 4184 .ctx = ctx, 4185 }; 4186 4187 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4188 IEEE80211_IFACE_ITER_NORMAL, 4189 iwl_mvm_ftm_responder_chanctx_iter, 4190 &data); 4191 return data.responder; 4192 } 4193 4194 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4195 struct ieee80211_chanctx_conf *ctx) 4196 { 4197 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4198 struct iwl_mvm_phy_ctxt *phy_ctxt; 4199 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4200 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4201 int ret; 4202 4203 lockdep_assert_held(&mvm->mutex); 4204 4205 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4206 4207 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4208 if (!phy_ctxt) { 4209 ret = -ENOSPC; 4210 goto out; 4211 } 4212 4213 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4214 ctx->rx_chains_static, 4215 ctx->rx_chains_dynamic); 4216 if (ret) { 4217 IWL_ERR(mvm, "Failed to add PHY context\n"); 4218 goto out; 4219 } 4220 4221 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4222 *phy_ctxt_id = phy_ctxt->id; 4223 out: 4224 return ret; 4225 } 4226 4227 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4228 struct ieee80211_chanctx_conf *ctx) 4229 { 4230 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4231 int ret; 4232 4233 mutex_lock(&mvm->mutex); 4234 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4235 mutex_unlock(&mvm->mutex); 4236 4237 return ret; 4238 } 4239 4240 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4241 struct ieee80211_chanctx_conf *ctx) 4242 { 4243 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4244 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4245 4246 lockdep_assert_held(&mvm->mutex); 4247 4248 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4249 } 4250 4251 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4252 struct ieee80211_chanctx_conf *ctx) 4253 { 4254 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4255 4256 mutex_lock(&mvm->mutex); 4257 __iwl_mvm_remove_chanctx(mvm, ctx); 4258 mutex_unlock(&mvm->mutex); 4259 } 4260 4261 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4262 struct ieee80211_chanctx_conf *ctx, 4263 u32 changed) 4264 { 4265 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4266 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4267 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4268 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4269 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4270 4271 if (WARN_ONCE((phy_ctxt->ref > 1) && 4272 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4273 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4274 IEEE80211_CHANCTX_CHANGE_RADAR | 4275 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4276 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4277 phy_ctxt->ref, changed)) 4278 return; 4279 4280 mutex_lock(&mvm->mutex); 4281 4282 /* we are only changing the min_width, may be a noop */ 4283 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4284 if (phy_ctxt->width == def->width) 4285 goto out_unlock; 4286 4287 /* we are just toggling between 20_NOHT and 20 */ 4288 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4289 def->width <= NL80211_CHAN_WIDTH_20) 4290 goto out_unlock; 4291 } 4292 4293 iwl_mvm_bt_coex_vif_change(mvm); 4294 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4295 ctx->rx_chains_static, 4296 ctx->rx_chains_dynamic); 4297 4298 out_unlock: 4299 mutex_unlock(&mvm->mutex); 4300 } 4301 4302 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4303 struct ieee80211_vif *vif, 4304 struct ieee80211_chanctx_conf *ctx, 4305 bool switching_chanctx) 4306 { 4307 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4308 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4309 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4310 int ret; 4311 4312 lockdep_assert_held(&mvm->mutex); 4313 4314 mvmvif->phy_ctxt = phy_ctxt; 4315 4316 switch (vif->type) { 4317 case NL80211_IFTYPE_AP: 4318 /* only needed if we're switching chanctx (i.e. during CSA) */ 4319 if (switching_chanctx) { 4320 mvmvif->ap_ibss_active = true; 4321 break; 4322 } 4323 fallthrough; 4324 case NL80211_IFTYPE_ADHOC: 4325 /* 4326 * The AP binding flow is handled as part of the start_ap flow 4327 * (in bss_info_changed), similarly for IBSS. 4328 */ 4329 ret = 0; 4330 goto out; 4331 case NL80211_IFTYPE_STATION: 4332 mvmvif->csa_bcn_pending = false; 4333 break; 4334 case NL80211_IFTYPE_MONITOR: 4335 /* always disable PS when a monitor interface is active */ 4336 mvmvif->ps_disabled = true; 4337 break; 4338 default: 4339 ret = -EINVAL; 4340 goto out; 4341 } 4342 4343 ret = iwl_mvm_binding_add_vif(mvm, vif); 4344 if (ret) 4345 goto out; 4346 4347 /* 4348 * Power state must be updated before quotas, 4349 * otherwise fw will complain. 4350 */ 4351 iwl_mvm_power_update_mac(mvm); 4352 4353 /* Setting the quota at this stage is only required for monitor 4354 * interfaces. For the other types, the bss_info changed flow 4355 * will handle quota settings. 4356 */ 4357 if (vif->type == NL80211_IFTYPE_MONITOR) { 4358 mvmvif->monitor_active = true; 4359 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4360 if (ret) 4361 goto out_remove_binding; 4362 4363 ret = iwl_mvm_add_snif_sta(mvm, vif); 4364 if (ret) 4365 goto out_remove_binding; 4366 4367 } 4368 4369 /* Handle binding during CSA */ 4370 if (vif->type == NL80211_IFTYPE_AP) { 4371 iwl_mvm_update_quotas(mvm, false, NULL); 4372 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4373 } 4374 4375 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4376 mvmvif->csa_bcn_pending = true; 4377 4378 if (!fw_has_capa(&mvm->fw->ucode_capa, 4379 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4380 u32 duration = 3 * vif->bss_conf.beacon_int; 4381 4382 /* Protect the session to make sure we hear the first 4383 * beacon on the new channel. 4384 */ 4385 iwl_mvm_protect_session(mvm, vif, duration, duration, 4386 vif->bss_conf.beacon_int / 2, 4387 true); 4388 } 4389 4390 iwl_mvm_update_quotas(mvm, false, NULL); 4391 } 4392 4393 goto out; 4394 4395 out_remove_binding: 4396 iwl_mvm_binding_remove_vif(mvm, vif); 4397 iwl_mvm_power_update_mac(mvm); 4398 out: 4399 if (ret) 4400 mvmvif->phy_ctxt = NULL; 4401 return ret; 4402 } 4403 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4404 struct ieee80211_vif *vif, 4405 struct ieee80211_bss_conf *link_conf, 4406 struct ieee80211_chanctx_conf *ctx) 4407 { 4408 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4409 int ret; 4410 4411 mutex_lock(&mvm->mutex); 4412 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4413 mutex_unlock(&mvm->mutex); 4414 4415 return ret; 4416 } 4417 4418 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4419 struct ieee80211_vif *vif, 4420 struct ieee80211_chanctx_conf *ctx, 4421 bool switching_chanctx) 4422 { 4423 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4424 struct ieee80211_vif *disabled_vif = NULL; 4425 4426 lockdep_assert_held(&mvm->mutex); 4427 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4428 4429 switch (vif->type) { 4430 case NL80211_IFTYPE_ADHOC: 4431 goto out; 4432 case NL80211_IFTYPE_MONITOR: 4433 mvmvif->monitor_active = false; 4434 mvmvif->ps_disabled = false; 4435 iwl_mvm_rm_snif_sta(mvm, vif); 4436 break; 4437 case NL80211_IFTYPE_AP: 4438 /* This part is triggered only during CSA */ 4439 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4440 goto out; 4441 4442 mvmvif->csa_countdown = false; 4443 4444 /* Set CS bit on all the stations */ 4445 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4446 4447 /* Save blocked iface, the timeout is set on the next beacon */ 4448 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4449 4450 mvmvif->ap_ibss_active = false; 4451 break; 4452 case NL80211_IFTYPE_STATION: 4453 if (!switching_chanctx) 4454 break; 4455 4456 disabled_vif = vif; 4457 4458 if (!fw_has_capa(&mvm->fw->ucode_capa, 4459 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4460 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4461 break; 4462 default: 4463 break; 4464 } 4465 4466 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4467 iwl_mvm_binding_remove_vif(mvm, vif); 4468 4469 out: 4470 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 4471 switching_chanctx) 4472 return; 4473 mvmvif->phy_ctxt = NULL; 4474 iwl_mvm_power_update_mac(mvm); 4475 } 4476 4477 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4478 struct ieee80211_vif *vif, 4479 struct ieee80211_bss_conf *link_conf, 4480 struct ieee80211_chanctx_conf *ctx) 4481 { 4482 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4483 4484 mutex_lock(&mvm->mutex); 4485 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4486 mutex_unlock(&mvm->mutex); 4487 } 4488 4489 static int 4490 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4491 struct ieee80211_vif_chanctx_switch *vifs) 4492 { 4493 int ret; 4494 4495 mutex_lock(&mvm->mutex); 4496 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4497 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4498 4499 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4500 if (ret) { 4501 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4502 goto out_reassign; 4503 } 4504 4505 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4506 true); 4507 if (ret) { 4508 IWL_ERR(mvm, 4509 "failed to assign new_ctx during channel switch\n"); 4510 goto out_remove; 4511 } 4512 4513 /* we don't support TDLS during DCM - can be caused by channel switch */ 4514 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4515 iwl_mvm_teardown_tdls_peers(mvm); 4516 4517 goto out; 4518 4519 out_remove: 4520 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4521 4522 out_reassign: 4523 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4524 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4525 goto out_restart; 4526 } 4527 4528 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4529 true)) { 4530 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4531 goto out_restart; 4532 } 4533 4534 goto out; 4535 4536 out_restart: 4537 /* things keep failing, better restart the hw */ 4538 iwl_mvm_nic_restart(mvm, false); 4539 4540 out: 4541 mutex_unlock(&mvm->mutex); 4542 4543 return ret; 4544 } 4545 4546 static int 4547 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4548 struct ieee80211_vif_chanctx_switch *vifs) 4549 { 4550 int ret; 4551 4552 mutex_lock(&mvm->mutex); 4553 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4554 4555 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4556 true); 4557 if (ret) { 4558 IWL_ERR(mvm, 4559 "failed to assign new_ctx during channel switch\n"); 4560 goto out_reassign; 4561 } 4562 4563 goto out; 4564 4565 out_reassign: 4566 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4567 true)) { 4568 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4569 goto out_restart; 4570 } 4571 4572 goto out; 4573 4574 out_restart: 4575 /* things keep failing, better restart the hw */ 4576 iwl_mvm_nic_restart(mvm, false); 4577 4578 out: 4579 mutex_unlock(&mvm->mutex); 4580 4581 return ret; 4582 } 4583 4584 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4585 struct ieee80211_vif_chanctx_switch *vifs, 4586 int n_vifs, 4587 enum ieee80211_chanctx_switch_mode mode) 4588 { 4589 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4590 int ret; 4591 4592 /* we only support a single-vif right now */ 4593 if (n_vifs > 1) 4594 return -EOPNOTSUPP; 4595 4596 switch (mode) { 4597 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4598 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4599 break; 4600 case CHANCTX_SWMODE_REASSIGN_VIF: 4601 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4602 break; 4603 default: 4604 ret = -EOPNOTSUPP; 4605 break; 4606 } 4607 4608 return ret; 4609 } 4610 4611 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4612 { 4613 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4614 4615 return mvm->ibss_manager; 4616 } 4617 4618 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4619 struct ieee80211_sta *sta, 4620 bool set) 4621 { 4622 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4623 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4624 4625 if (!mvm_sta || !mvm_sta->vif) { 4626 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4627 return -EINVAL; 4628 } 4629 4630 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4631 } 4632 4633 #ifdef CONFIG_NL80211_TESTMODE 4634 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4635 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4636 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4637 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4638 }; 4639 4640 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4641 struct ieee80211_vif *vif, 4642 void *data, int len) 4643 { 4644 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4645 int err; 4646 u32 noa_duration; 4647 4648 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4649 iwl_mvm_tm_policy, NULL); 4650 if (err) 4651 return err; 4652 4653 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4654 return -EINVAL; 4655 4656 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4657 case IWL_MVM_TM_CMD_SET_NOA: 4658 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4659 !vif->bss_conf.enable_beacon || 4660 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4661 return -EINVAL; 4662 4663 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4664 if (noa_duration >= vif->bss_conf.beacon_int) 4665 return -EINVAL; 4666 4667 mvm->noa_duration = noa_duration; 4668 mvm->noa_vif = vif; 4669 4670 return iwl_mvm_update_quotas(mvm, true, NULL); 4671 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4672 /* must be associated client vif - ignore authorized */ 4673 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4674 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 4675 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4676 return -EINVAL; 4677 4678 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4679 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4680 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4681 } 4682 4683 return -EOPNOTSUPP; 4684 } 4685 4686 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4687 struct ieee80211_vif *vif, 4688 void *data, int len) 4689 { 4690 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4691 int err; 4692 4693 mutex_lock(&mvm->mutex); 4694 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4695 mutex_unlock(&mvm->mutex); 4696 4697 return err; 4698 } 4699 #endif 4700 4701 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4702 struct ieee80211_vif *vif, 4703 struct ieee80211_channel_switch *chsw) 4704 { 4705 /* By implementing this operation, we prevent mac80211 from 4706 * starting its own channel switch timer, so that we can call 4707 * ieee80211_chswitch_done() ourselves at the right time 4708 * (which is when the absence time event starts). 4709 */ 4710 4711 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4712 "dummy channel switch op\n"); 4713 } 4714 4715 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4716 struct ieee80211_vif *vif, 4717 struct ieee80211_channel_switch *chsw) 4718 { 4719 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4720 struct iwl_chan_switch_te_cmd cmd = { 4721 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4722 mvmvif->color)), 4723 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4724 .tsf = cpu_to_le32(chsw->timestamp), 4725 .cs_count = chsw->count, 4726 .cs_mode = chsw->block_tx, 4727 }; 4728 4729 lockdep_assert_held(&mvm->mutex); 4730 4731 if (chsw->delay) 4732 cmd.cs_delayed_bcn_count = 4733 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4734 4735 return iwl_mvm_send_cmd_pdu(mvm, 4736 WIDE_ID(MAC_CONF_GROUP, 4737 CHANNEL_SWITCH_TIME_EVENT_CMD), 4738 0, sizeof(cmd), &cmd); 4739 } 4740 4741 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4742 struct ieee80211_vif *vif, 4743 struct ieee80211_channel_switch *chsw) 4744 { 4745 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4746 u32 apply_time; 4747 4748 /* Schedule the time event to a bit before beacon 1, 4749 * to make sure we're in the new channel when the 4750 * GO/AP arrives. In case count <= 1 immediately schedule the 4751 * TE (this might result with some packet loss or connection 4752 * loss). 4753 */ 4754 if (chsw->count <= 1) 4755 apply_time = 0; 4756 else 4757 apply_time = chsw->device_timestamp + 4758 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4759 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4760 4761 if (chsw->block_tx) 4762 iwl_mvm_csa_client_absent(mvm, vif); 4763 4764 if (mvmvif->bf_data.bf_enabled) { 4765 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4766 4767 if (ret) 4768 return ret; 4769 } 4770 4771 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4772 apply_time); 4773 4774 return 0; 4775 } 4776 4777 #define IWL_MAX_CSA_BLOCK_TX 1500 4778 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4779 struct ieee80211_vif *vif, 4780 struct ieee80211_channel_switch *chsw) 4781 { 4782 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4783 struct ieee80211_vif *csa_vif; 4784 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4785 int ret; 4786 4787 mutex_lock(&mvm->mutex); 4788 4789 mvmvif->csa_failed = false; 4790 4791 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4792 chsw->chandef.center_freq1); 4793 4794 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4795 ieee80211_vif_to_wdev(vif), 4796 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4797 4798 switch (vif->type) { 4799 case NL80211_IFTYPE_AP: 4800 csa_vif = 4801 rcu_dereference_protected(mvm->csa_vif, 4802 lockdep_is_held(&mvm->mutex)); 4803 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 4804 "Another CSA is already in progress")) { 4805 ret = -EBUSY; 4806 goto out_unlock; 4807 } 4808 4809 /* we still didn't unblock tx. prevent new CS meanwhile */ 4810 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4811 lockdep_is_held(&mvm->mutex))) { 4812 ret = -EBUSY; 4813 goto out_unlock; 4814 } 4815 4816 rcu_assign_pointer(mvm->csa_vif, vif); 4817 4818 if (WARN_ONCE(mvmvif->csa_countdown, 4819 "Previous CSA countdown didn't complete")) { 4820 ret = -EBUSY; 4821 goto out_unlock; 4822 } 4823 4824 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4825 4826 break; 4827 case NL80211_IFTYPE_STATION: 4828 /* 4829 * In the new flow FW is in charge of timing the switch so there 4830 * is no need for all of this 4831 */ 4832 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4833 CHANNEL_SWITCH_ERROR_NOTIF, 4834 0)) 4835 break; 4836 4837 /* 4838 * We haven't configured the firmware to be associated yet since 4839 * we don't know the dtim period. In this case, the firmware can't 4840 * track the beacons. 4841 */ 4842 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 4843 ret = -EBUSY; 4844 goto out_unlock; 4845 } 4846 4847 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 4848 schedule_delayed_work(&mvmvif->csa_work, 0); 4849 4850 if (chsw->block_tx) { 4851 /* 4852 * In case of undetermined / long time with immediate 4853 * quiet monitor status to gracefully disconnect 4854 */ 4855 if (!chsw->count || 4856 chsw->count * vif->bss_conf.beacon_int > 4857 IWL_MAX_CSA_BLOCK_TX) 4858 schedule_delayed_work(&mvmvif->csa_work, 4859 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4860 } 4861 4862 if (!fw_has_capa(&mvm->fw->ucode_capa, 4863 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4864 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4865 if (ret) 4866 goto out_unlock; 4867 } else { 4868 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4869 } 4870 4871 mvmvif->csa_count = chsw->count; 4872 mvmvif->csa_misbehave = false; 4873 break; 4874 default: 4875 break; 4876 } 4877 4878 mvmvif->ps_disabled = true; 4879 4880 ret = iwl_mvm_power_update_ps(mvm); 4881 if (ret) 4882 goto out_unlock; 4883 4884 /* we won't be on this channel any longer */ 4885 iwl_mvm_teardown_tdls_peers(mvm); 4886 4887 out_unlock: 4888 mutex_unlock(&mvm->mutex); 4889 4890 return ret; 4891 } 4892 4893 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4894 struct ieee80211_vif *vif, 4895 struct ieee80211_channel_switch *chsw) 4896 { 4897 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4898 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4899 struct iwl_chan_switch_te_cmd cmd = { 4900 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4901 mvmvif->color)), 4902 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4903 .tsf = cpu_to_le32(chsw->timestamp), 4904 .cs_count = chsw->count, 4905 .cs_mode = chsw->block_tx, 4906 }; 4907 4908 /* 4909 * In the new flow FW is in charge of timing the switch so there is no 4910 * need for all of this 4911 */ 4912 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4913 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 4914 return; 4915 4916 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4917 return; 4918 4919 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 4920 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 4921 4922 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4923 if (mvmvif->csa_misbehave) { 4924 /* Second time, give up on this AP*/ 4925 iwl_mvm_abort_channel_switch(hw, vif); 4926 ieee80211_chswitch_done(vif, false); 4927 mvmvif->csa_misbehave = false; 4928 return; 4929 } 4930 mvmvif->csa_misbehave = true; 4931 } 4932 mvmvif->csa_count = chsw->count; 4933 4934 mutex_lock(&mvm->mutex); 4935 if (mvmvif->csa_failed) 4936 goto out_unlock; 4937 4938 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4939 WIDE_ID(MAC_CONF_GROUP, 4940 CHANNEL_SWITCH_TIME_EVENT_CMD), 4941 0, sizeof(cmd), &cmd)); 4942 out_unlock: 4943 mutex_unlock(&mvm->mutex); 4944 } 4945 4946 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4947 { 4948 int i; 4949 4950 if (!iwl_mvm_has_new_tx_api(mvm)) { 4951 if (drop) { 4952 mutex_lock(&mvm->mutex); 4953 iwl_mvm_flush_tx_path(mvm, 4954 iwl_mvm_flushable_queues(mvm) & queues); 4955 mutex_unlock(&mvm->mutex); 4956 } else { 4957 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4958 } 4959 return; 4960 } 4961 4962 mutex_lock(&mvm->mutex); 4963 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4964 struct ieee80211_sta *sta; 4965 4966 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4967 lockdep_is_held(&mvm->mutex)); 4968 if (IS_ERR_OR_NULL(sta)) 4969 continue; 4970 4971 if (drop) 4972 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 4973 else 4974 iwl_mvm_wait_sta_queues_empty(mvm, 4975 iwl_mvm_sta_from_mac80211(sta)); 4976 } 4977 mutex_unlock(&mvm->mutex); 4978 } 4979 4980 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4981 struct ieee80211_vif *vif, u32 queues, bool drop) 4982 { 4983 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4984 struct iwl_mvm_vif *mvmvif; 4985 struct iwl_mvm_sta *mvmsta; 4986 struct ieee80211_sta *sta; 4987 int i; 4988 u32 msk = 0; 4989 4990 if (!vif) { 4991 iwl_mvm_flush_no_vif(mvm, queues, drop); 4992 return; 4993 } 4994 4995 if (vif->type != NL80211_IFTYPE_STATION) 4996 return; 4997 4998 /* Make sure we're done with the deferred traffic before flushing */ 4999 flush_work(&mvm->add_stream_wk); 5000 5001 mutex_lock(&mvm->mutex); 5002 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5003 5004 /* flush the AP-station and all TDLS peers */ 5005 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5006 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5007 lockdep_is_held(&mvm->mutex)); 5008 if (IS_ERR_OR_NULL(sta)) 5009 continue; 5010 5011 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5012 if (mvmsta->vif != vif) 5013 continue; 5014 5015 /* make sure only TDLS peers or the AP are flushed */ 5016 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 5017 5018 if (drop) { 5019 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5020 IWL_ERR(mvm, "flush request fail\n"); 5021 } else { 5022 msk |= mvmsta->tfd_queue_msk; 5023 if (iwl_mvm_has_new_tx_api(mvm)) 5024 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5025 } 5026 } 5027 5028 mutex_unlock(&mvm->mutex); 5029 5030 /* this can take a while, and we may need/want other operations 5031 * to succeed while doing this, so do it without the mutex held 5032 */ 5033 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5034 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5035 } 5036 5037 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5038 struct survey_info *survey) 5039 { 5040 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5041 int ret; 5042 5043 memset(survey, 0, sizeof(*survey)); 5044 5045 /* only support global statistics right now */ 5046 if (idx != 0) 5047 return -ENOENT; 5048 5049 if (!fw_has_capa(&mvm->fw->ucode_capa, 5050 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5051 return -ENOENT; 5052 5053 mutex_lock(&mvm->mutex); 5054 5055 if (iwl_mvm_firmware_running(mvm)) { 5056 ret = iwl_mvm_request_statistics(mvm, false); 5057 if (ret) 5058 goto out; 5059 } 5060 5061 survey->filled = SURVEY_INFO_TIME | 5062 SURVEY_INFO_TIME_RX | 5063 SURVEY_INFO_TIME_TX | 5064 SURVEY_INFO_TIME_SCAN; 5065 survey->time = mvm->accu_radio_stats.on_time_rf + 5066 mvm->radio_stats.on_time_rf; 5067 do_div(survey->time, USEC_PER_MSEC); 5068 5069 survey->time_rx = mvm->accu_radio_stats.rx_time + 5070 mvm->radio_stats.rx_time; 5071 do_div(survey->time_rx, USEC_PER_MSEC); 5072 5073 survey->time_tx = mvm->accu_radio_stats.tx_time + 5074 mvm->radio_stats.tx_time; 5075 do_div(survey->time_tx, USEC_PER_MSEC); 5076 5077 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5078 mvm->radio_stats.on_time_scan; 5079 do_div(survey->time_scan, USEC_PER_MSEC); 5080 5081 ret = 0; 5082 out: 5083 mutex_unlock(&mvm->mutex); 5084 return ret; 5085 } 5086 5087 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5088 { 5089 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5090 u32 gi_ltf; 5091 5092 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5093 case RATE_MCS_CHAN_WIDTH_20: 5094 rinfo->bw = RATE_INFO_BW_20; 5095 break; 5096 case RATE_MCS_CHAN_WIDTH_40: 5097 rinfo->bw = RATE_INFO_BW_40; 5098 break; 5099 case RATE_MCS_CHAN_WIDTH_80: 5100 rinfo->bw = RATE_INFO_BW_80; 5101 break; 5102 case RATE_MCS_CHAN_WIDTH_160: 5103 rinfo->bw = RATE_INFO_BW_160; 5104 break; 5105 case RATE_MCS_CHAN_WIDTH_320: 5106 rinfo->bw = RATE_INFO_BW_320; 5107 break; 5108 } 5109 5110 if (format == RATE_MCS_CCK_MSK || 5111 format == RATE_MCS_LEGACY_OFDM_MSK) { 5112 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5113 5114 /* add the offset needed to get to the legacy ofdm indices */ 5115 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5116 rate += IWL_FIRST_OFDM_RATE; 5117 5118 switch (rate) { 5119 case IWL_RATE_1M_INDEX: 5120 rinfo->legacy = 10; 5121 break; 5122 case IWL_RATE_2M_INDEX: 5123 rinfo->legacy = 20; 5124 break; 5125 case IWL_RATE_5M_INDEX: 5126 rinfo->legacy = 55; 5127 break; 5128 case IWL_RATE_11M_INDEX: 5129 rinfo->legacy = 110; 5130 break; 5131 case IWL_RATE_6M_INDEX: 5132 rinfo->legacy = 60; 5133 break; 5134 case IWL_RATE_9M_INDEX: 5135 rinfo->legacy = 90; 5136 break; 5137 case IWL_RATE_12M_INDEX: 5138 rinfo->legacy = 120; 5139 break; 5140 case IWL_RATE_18M_INDEX: 5141 rinfo->legacy = 180; 5142 break; 5143 case IWL_RATE_24M_INDEX: 5144 rinfo->legacy = 240; 5145 break; 5146 case IWL_RATE_36M_INDEX: 5147 rinfo->legacy = 360; 5148 break; 5149 case IWL_RATE_48M_INDEX: 5150 rinfo->legacy = 480; 5151 break; 5152 case IWL_RATE_54M_INDEX: 5153 rinfo->legacy = 540; 5154 } 5155 return; 5156 } 5157 5158 rinfo->nss = u32_get_bits(rate_n_flags, 5159 RATE_MCS_NSS_MSK) + 1; 5160 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5161 RATE_HT_MCS_INDEX(rate_n_flags) : 5162 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5163 5164 if (rate_n_flags & RATE_MCS_SGI_MSK) 5165 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5166 5167 switch (format) { 5168 case RATE_MCS_EHT_MSK: 5169 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5170 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5171 break; 5172 case RATE_MCS_HE_MSK: 5173 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5174 5175 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5176 5177 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5178 rinfo->bw = RATE_INFO_BW_HE_RU; 5179 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5180 } 5181 5182 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5183 case RATE_MCS_HE_TYPE_SU: 5184 case RATE_MCS_HE_TYPE_EXT_SU: 5185 if (gi_ltf == 0 || gi_ltf == 1) 5186 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5187 else if (gi_ltf == 2) 5188 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5189 else if (gi_ltf == 3) 5190 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5191 else 5192 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5193 break; 5194 case RATE_MCS_HE_TYPE_MU: 5195 if (gi_ltf == 0 || gi_ltf == 1) 5196 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5197 else if (gi_ltf == 2) 5198 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5199 else 5200 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5201 break; 5202 case RATE_MCS_HE_TYPE_TRIG: 5203 if (gi_ltf == 0 || gi_ltf == 1) 5204 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5205 else 5206 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5207 break; 5208 } 5209 5210 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5211 rinfo->he_dcm = 1; 5212 break; 5213 case RATE_MCS_HT_MSK: 5214 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5215 break; 5216 case RATE_MCS_VHT_MSK: 5217 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5218 break; 5219 } 5220 } 5221 5222 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5223 struct ieee80211_vif *vif, 5224 struct ieee80211_sta *sta, 5225 struct station_info *sinfo) 5226 { 5227 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5228 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5229 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5230 5231 if (mvmsta->avg_energy) { 5232 sinfo->signal_avg = -(s8)mvmsta->avg_energy; 5233 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5234 } 5235 5236 if (iwl_mvm_has_tlc_offload(mvm)) { 5237 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 5238 5239 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5240 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5241 } 5242 5243 /* if beacon filtering isn't on mac80211 does it anyway */ 5244 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5245 return; 5246 5247 if (!vif->cfg.assoc) 5248 return; 5249 5250 mutex_lock(&mvm->mutex); 5251 5252 if (mvmvif->ap_sta_id != mvmsta->sta_id) 5253 goto unlock; 5254 5255 if (iwl_mvm_request_statistics(mvm, false)) 5256 goto unlock; 5257 5258 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 5259 mvmvif->beacon_stats.accu_num_beacons; 5260 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5261 if (mvmvif->beacon_stats.avg_signal) { 5262 /* firmware only reports a value after RXing a few beacons */ 5263 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 5264 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5265 } 5266 unlock: 5267 mutex_unlock(&mvm->mutex); 5268 } 5269 5270 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5271 struct ieee80211_vif *vif, 5272 const struct ieee80211_mlme_event *mlme) 5273 { 5274 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5275 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5276 iwl_dbg_tlv_time_point(&mvm->fwrt, 5277 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5278 NULL); 5279 return; 5280 } 5281 5282 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5283 iwl_dbg_tlv_time_point(&mvm->fwrt, 5284 IWL_FW_INI_TIME_POINT_DEASSOC, 5285 NULL); 5286 return; 5287 } 5288 } 5289 5290 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5291 struct ieee80211_vif *vif, 5292 const struct ieee80211_event *event) 5293 { 5294 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5295 do { \ 5296 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5297 break; \ 5298 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5299 } while (0) 5300 5301 struct iwl_fw_dbg_trigger_tlv *trig; 5302 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5303 5304 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5305 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5306 return; 5307 } 5308 5309 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5310 FW_DBG_TRIGGER_MLME); 5311 if (!trig) 5312 return; 5313 5314 trig_mlme = (void *)trig->data; 5315 5316 if (event->u.mlme.data == ASSOC_EVENT) { 5317 if (event->u.mlme.status == MLME_DENIED) 5318 CHECK_MLME_TRIGGER(stop_assoc_denied, 5319 "DENIED ASSOC: reason %d", 5320 event->u.mlme.reason); 5321 else if (event->u.mlme.status == MLME_TIMEOUT) 5322 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5323 "ASSOC TIMEOUT"); 5324 } else if (event->u.mlme.data == AUTH_EVENT) { 5325 if (event->u.mlme.status == MLME_DENIED) 5326 CHECK_MLME_TRIGGER(stop_auth_denied, 5327 "DENIED AUTH: reason %d", 5328 event->u.mlme.reason); 5329 else if (event->u.mlme.status == MLME_TIMEOUT) 5330 CHECK_MLME_TRIGGER(stop_auth_timeout, 5331 "AUTH TIMEOUT"); 5332 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5333 CHECK_MLME_TRIGGER(stop_rx_deauth, 5334 "DEAUTH RX %d", event->u.mlme.reason); 5335 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5336 CHECK_MLME_TRIGGER(stop_tx_deauth, 5337 "DEAUTH TX %d", event->u.mlme.reason); 5338 } 5339 #undef CHECK_MLME_TRIGGER 5340 } 5341 5342 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5343 struct ieee80211_vif *vif, 5344 const struct ieee80211_event *event) 5345 { 5346 struct iwl_fw_dbg_trigger_tlv *trig; 5347 struct iwl_fw_dbg_trigger_ba *ba_trig; 5348 5349 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5350 FW_DBG_TRIGGER_BA); 5351 if (!trig) 5352 return; 5353 5354 ba_trig = (void *)trig->data; 5355 5356 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5357 return; 5358 5359 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5360 "BAR received from %pM, tid %d, ssn %d", 5361 event->u.ba.sta->addr, event->u.ba.tid, 5362 event->u.ba.ssn); 5363 } 5364 5365 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5366 struct ieee80211_vif *vif, 5367 const struct ieee80211_event *event) 5368 { 5369 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5370 5371 switch (event->type) { 5372 case MLME_EVENT: 5373 iwl_mvm_event_mlme_callback(mvm, vif, event); 5374 break; 5375 case BAR_RX_EVENT: 5376 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5377 break; 5378 case BA_FRAME_TIMEOUT: 5379 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5380 event->u.ba.tid); 5381 break; 5382 default: 5383 break; 5384 } 5385 } 5386 5387 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5388 enum iwl_mvm_rxq_notif_type type, 5389 bool sync, 5390 const void *data, u32 size) 5391 { 5392 struct { 5393 struct iwl_rxq_sync_cmd cmd; 5394 struct iwl_mvm_internal_rxq_notif notif; 5395 } __packed cmd = { 5396 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 5397 .cmd.count = 5398 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 5399 size), 5400 .notif.type = type, 5401 .notif.sync = sync, 5402 }; 5403 struct iwl_host_cmd hcmd = { 5404 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 5405 .data[0] = &cmd, 5406 .len[0] = sizeof(cmd), 5407 .data[1] = data, 5408 .len[1] = size, 5409 .flags = sync ? 0 : CMD_ASYNC, 5410 }; 5411 int ret; 5412 5413 /* size must be a multiple of DWORD */ 5414 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 5415 return; 5416 5417 if (!iwl_mvm_has_new_rx_api(mvm)) 5418 return; 5419 5420 if (sync) { 5421 cmd.notif.cookie = mvm->queue_sync_cookie; 5422 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 5423 } 5424 5425 ret = iwl_mvm_send_cmd(mvm, &hcmd); 5426 if (ret) { 5427 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5428 goto out; 5429 } 5430 5431 if (sync) { 5432 lockdep_assert_held(&mvm->mutex); 5433 ret = wait_event_timeout(mvm->rx_sync_waitq, 5434 READ_ONCE(mvm->queue_sync_state) == 0 || 5435 iwl_mvm_is_radio_killed(mvm), 5436 HZ); 5437 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 5438 "queue sync: failed to sync, state is 0x%lx\n", 5439 mvm->queue_sync_state); 5440 } 5441 5442 out: 5443 if (sync) { 5444 mvm->queue_sync_state = 0; 5445 mvm->queue_sync_cookie++; 5446 } 5447 } 5448 5449 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5450 { 5451 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5452 5453 mutex_lock(&mvm->mutex); 5454 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 5455 mutex_unlock(&mvm->mutex); 5456 } 5457 5458 static int 5459 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5460 struct ieee80211_vif *vif, 5461 struct cfg80211_ftm_responder_stats *stats) 5462 { 5463 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5464 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5465 5466 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5467 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5468 return -EINVAL; 5469 5470 mutex_lock(&mvm->mutex); 5471 *stats = mvm->ftm_resp_stats; 5472 mutex_unlock(&mvm->mutex); 5473 5474 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5475 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5476 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5477 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5478 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5479 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5480 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5481 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5482 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5483 5484 return 0; 5485 } 5486 5487 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5488 struct ieee80211_vif *vif, 5489 struct cfg80211_pmsr_request *request) 5490 { 5491 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5492 int ret; 5493 5494 mutex_lock(&mvm->mutex); 5495 ret = iwl_mvm_ftm_start(mvm, vif, request); 5496 mutex_unlock(&mvm->mutex); 5497 5498 return ret; 5499 } 5500 5501 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5502 struct ieee80211_vif *vif, 5503 struct cfg80211_pmsr_request *request) 5504 { 5505 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5506 5507 mutex_lock(&mvm->mutex); 5508 iwl_mvm_ftm_abort(mvm, request); 5509 mutex_unlock(&mvm->mutex); 5510 } 5511 5512 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5513 { 5514 u8 protocol = ip_hdr(skb)->protocol; 5515 5516 if (!IS_ENABLED(CONFIG_INET)) 5517 return false; 5518 5519 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5520 } 5521 5522 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5523 struct sk_buff *head, 5524 struct sk_buff *skb) 5525 { 5526 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5527 5528 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 5529 return iwl_mvm_tx_csum_bz(mvm, head, true) == 5530 iwl_mvm_tx_csum_bz(mvm, skb, true); 5531 5532 /* For now don't aggregate IPv6 in AMSDU */ 5533 if (skb->protocol != htons(ETH_P_IP)) 5534 return false; 5535 5536 if (!iwl_mvm_is_csum_supported(mvm)) 5537 return true; 5538 5539 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5540 } 5541 5542 const struct ieee80211_ops iwl_mvm_hw_ops = { 5543 .tx = iwl_mvm_mac_tx, 5544 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5545 .ampdu_action = iwl_mvm_mac_ampdu_action, 5546 .get_antenna = iwl_mvm_op_get_antenna, 5547 .start = iwl_mvm_mac_start, 5548 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5549 .stop = iwl_mvm_mac_stop, 5550 .add_interface = iwl_mvm_mac_add_interface, 5551 .remove_interface = iwl_mvm_mac_remove_interface, 5552 .config = iwl_mvm_mac_config, 5553 .prepare_multicast = iwl_mvm_prepare_multicast, 5554 .configure_filter = iwl_mvm_configure_filter, 5555 .config_iface_filter = iwl_mvm_config_iface_filter, 5556 .bss_info_changed = iwl_mvm_bss_info_changed, 5557 .hw_scan = iwl_mvm_mac_hw_scan, 5558 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5559 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5560 .sta_state = iwl_mvm_mac_sta_state, 5561 .sta_notify = iwl_mvm_mac_sta_notify, 5562 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5563 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5564 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5565 .sta_rc_update = iwl_mvm_sta_rc_update, 5566 .conf_tx = iwl_mvm_mac_conf_tx, 5567 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5568 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 5569 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5570 .flush = iwl_mvm_mac_flush, 5571 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5572 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5573 .set_key = iwl_mvm_mac_set_key, 5574 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5575 .remain_on_channel = iwl_mvm_roc, 5576 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5577 .add_chanctx = iwl_mvm_add_chanctx, 5578 .remove_chanctx = iwl_mvm_remove_chanctx, 5579 .change_chanctx = iwl_mvm_change_chanctx, 5580 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5581 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5582 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5583 5584 .start_ap = iwl_mvm_start_ap, 5585 .stop_ap = iwl_mvm_stop_ap, 5586 .join_ibss = iwl_mvm_start_ibss, 5587 .leave_ibss = iwl_mvm_stop_ibss, 5588 5589 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5590 5591 .set_tim = iwl_mvm_set_tim, 5592 5593 .channel_switch = iwl_mvm_channel_switch, 5594 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5595 .post_channel_switch = iwl_mvm_post_channel_switch, 5596 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5597 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5598 5599 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5600 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5601 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5602 5603 .event_callback = iwl_mvm_mac_event_callback, 5604 5605 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5606 5607 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5608 5609 #ifdef CONFIG_PM_SLEEP 5610 /* look at d3.c */ 5611 .suspend = iwl_mvm_suspend, 5612 .resume = iwl_mvm_resume, 5613 .set_wakeup = iwl_mvm_set_wakeup, 5614 .set_rekey_data = iwl_mvm_set_rekey_data, 5615 #if IS_ENABLED(CONFIG_IPV6) 5616 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5617 #endif 5618 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5619 #endif 5620 .get_survey = iwl_mvm_mac_get_survey, 5621 .sta_statistics = iwl_mvm_mac_sta_statistics, 5622 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5623 .start_pmsr = iwl_mvm_start_pmsr, 5624 .abort_pmsr = iwl_mvm_abort_pmsr, 5625 5626 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5627 #ifdef CONFIG_IWLWIFI_DEBUGFS 5628 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5629 #endif 5630 }; 5631