1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2022 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-eeprom-parse.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 32 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 33 { 34 .max = 1, 35 .types = BIT(NL80211_IFTYPE_STATION), 36 }, 37 { 38 .max = 1, 39 .types = BIT(NL80211_IFTYPE_AP) | 40 BIT(NL80211_IFTYPE_P2P_CLIENT) | 41 BIT(NL80211_IFTYPE_P2P_GO), 42 }, 43 { 44 .max = 1, 45 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 46 }, 47 }; 48 49 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 50 { 51 .num_different_channels = 2, 52 .max_interfaces = 3, 53 .limits = iwl_mvm_limits, 54 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 55 }, 56 }; 57 58 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 59 .max_peers = IWL_MVM_TOF_MAX_APS, 60 .report_ap_tsf = 1, 61 .randomize_mac_addr = 1, 62 63 .ftm = { 64 .supported = 1, 65 .asap = 1, 66 .non_asap = 1, 67 .request_lci = 1, 68 .request_civicloc = 1, 69 .trigger_based = 1, 70 .non_trigger_based = 1, 71 .max_bursts_exponent = -1, /* all supported */ 72 .max_ftms_per_burst = 0, /* no limits */ 73 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 74 BIT(NL80211_CHAN_WIDTH_20) | 75 BIT(NL80211_CHAN_WIDTH_40) | 76 BIT(NL80211_CHAN_WIDTH_80) | 77 BIT(NL80211_CHAN_WIDTH_160), 78 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 79 BIT(NL80211_PREAMBLE_HT) | 80 BIT(NL80211_PREAMBLE_VHT) | 81 BIT(NL80211_PREAMBLE_HE), 82 }, 83 }; 84 85 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 86 enum set_key_cmd cmd, 87 struct ieee80211_vif *vif, 88 struct ieee80211_sta *sta, 89 struct ieee80211_key_conf *key); 90 91 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 92 { 93 int i; 94 95 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 96 for (i = 0; i < NUM_PHY_CTX; i++) { 97 mvm->phy_ctxts[i].id = i; 98 mvm->phy_ctxts[i].ref = 0; 99 } 100 } 101 102 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 103 const char *alpha2, 104 enum iwl_mcc_source src_id, 105 bool *changed) 106 { 107 struct ieee80211_regdomain *regd = NULL; 108 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 109 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 110 struct iwl_mcc_update_resp *resp; 111 u8 resp_ver; 112 113 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 114 115 lockdep_assert_held(&mvm->mutex); 116 117 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 118 if (IS_ERR_OR_NULL(resp)) { 119 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 120 PTR_ERR_OR_ZERO(resp)); 121 resp = NULL; 122 goto out; 123 } 124 125 if (changed) { 126 u32 status = le32_to_cpu(resp->status); 127 128 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 129 status == MCC_RESP_ILLEGAL); 130 } 131 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 132 MCC_UPDATE_CMD, 0); 133 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 134 135 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 136 __le32_to_cpu(resp->n_channels), 137 resp->channels, 138 __le16_to_cpu(resp->mcc), 139 __le16_to_cpu(resp->geo_info), 140 __le16_to_cpu(resp->cap), resp_ver); 141 /* Store the return source id */ 142 src_id = resp->source_id; 143 if (IS_ERR_OR_NULL(regd)) { 144 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 145 PTR_ERR_OR_ZERO(regd)); 146 goto out; 147 } 148 149 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 150 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 151 mvm->lar_regdom_set = true; 152 mvm->mcc_src = src_id; 153 154 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 155 156 out: 157 kfree(resp); 158 return regd; 159 } 160 161 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 162 { 163 bool changed; 164 struct ieee80211_regdomain *regd; 165 166 if (!iwl_mvm_is_lar_supported(mvm)) 167 return; 168 169 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 170 if (!IS_ERR_OR_NULL(regd)) { 171 /* only update the regulatory core if changed */ 172 if (changed) 173 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 174 175 kfree(regd); 176 } 177 } 178 179 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 180 bool *changed) 181 { 182 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 183 iwl_mvm_is_wifi_mcc_supported(mvm) ? 184 MCC_SOURCE_GET_CURRENT : 185 MCC_SOURCE_OLD_FW, changed); 186 } 187 188 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 189 { 190 enum iwl_mcc_source used_src; 191 struct ieee80211_regdomain *regd; 192 int ret; 193 bool changed; 194 const struct ieee80211_regdomain *r = 195 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 196 197 if (!r) 198 return -ENOENT; 199 200 /* save the last source in case we overwrite it below */ 201 used_src = mvm->mcc_src; 202 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 203 /* Notify the firmware we support wifi location updates */ 204 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 205 if (!IS_ERR_OR_NULL(regd)) 206 kfree(regd); 207 } 208 209 /* Now set our last stored MCC and source */ 210 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 211 &changed); 212 if (IS_ERR_OR_NULL(regd)) 213 return -EIO; 214 215 /* update cfg80211 if the regdomain was changed */ 216 if (changed) 217 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 218 else 219 ret = 0; 220 221 kfree(regd); 222 return ret; 223 } 224 225 static const u8 he_if_types_ext_capa_sta[] = { 226 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 227 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 228 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 229 }; 230 231 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 232 { 233 .iftype = NL80211_IFTYPE_STATION, 234 .extended_capabilities = he_if_types_ext_capa_sta, 235 .extended_capabilities_mask = he_if_types_ext_capa_sta, 236 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 237 }, 238 }; 239 240 static int 241 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 242 { 243 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 244 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 245 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 246 return 0; 247 } 248 249 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 250 { 251 struct ieee80211_hw *hw = mvm->hw; 252 int num_mac, ret, i; 253 static const u32 mvm_ciphers[] = { 254 WLAN_CIPHER_SUITE_WEP40, 255 WLAN_CIPHER_SUITE_WEP104, 256 WLAN_CIPHER_SUITE_TKIP, 257 WLAN_CIPHER_SUITE_CCMP, 258 }; 259 #ifdef CONFIG_PM_SLEEP 260 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 261 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 262 #endif 263 264 /* Tell mac80211 our characteristics */ 265 ieee80211_hw_set(hw, SIGNAL_DBM); 266 ieee80211_hw_set(hw, SPECTRUM_MGMT); 267 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 268 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 269 ieee80211_hw_set(hw, SUPPORTS_PS); 270 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 271 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 272 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 273 ieee80211_hw_set(hw, CONNECTION_MONITOR); 274 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 275 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 276 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 277 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 278 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 279 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 280 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 281 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 282 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 283 /* 284 * On older devices, enabling TX A-MSDU occasionally leads to 285 * something getting messed up, the command read from the FIFO 286 * gets out of sync and isn't a TX command, so that we have an 287 * assert EDC. 288 * 289 * It's not clear where the bug is, but since we didn't used to 290 * support A-MSDU until moving the mac80211 iTXQs, just leave it 291 * for older devices. We also don't see this issue on any newer 292 * devices. 293 */ 294 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 295 ieee80211_hw_set(hw, TX_AMSDU); 296 ieee80211_hw_set(hw, TX_FRAG_LIST); 297 298 if (iwl_mvm_has_tlc_offload(mvm)) { 299 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 300 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 301 } 302 303 if (iwl_mvm_has_new_rx_api(mvm)) 304 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 305 306 if (fw_has_capa(&mvm->fw->ucode_capa, 307 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 308 ieee80211_hw_set(hw, AP_LINK_PS); 309 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 310 /* 311 * we absolutely need this for the new TX API since that comes 312 * with many more queues than the current code can deal with 313 * for station powersave 314 */ 315 return -EINVAL; 316 } 317 318 if (mvm->trans->num_rx_queues > 1) 319 ieee80211_hw_set(hw, USES_RSS); 320 321 if (mvm->trans->max_skb_frags) 322 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 323 324 hw->queues = IEEE80211_NUM_ACS; 325 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 326 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 327 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 328 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 329 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 330 331 hw->radiotap_timestamp.units_pos = 332 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 333 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 334 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 335 hw->radiotap_timestamp.accuracy = 22; 336 337 if (!iwl_mvm_has_tlc_offload(mvm)) 338 hw->rate_control_algorithm = RS_NAME; 339 340 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 341 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 342 hw->max_tx_fragments = mvm->trans->max_skb_frags; 343 344 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 345 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 346 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 347 hw->wiphy->cipher_suites = mvm->ciphers; 348 349 if (iwl_mvm_has_new_rx_api(mvm)) { 350 mvm->ciphers[hw->wiphy->n_cipher_suites] = 351 WLAN_CIPHER_SUITE_GCMP; 352 hw->wiphy->n_cipher_suites++; 353 mvm->ciphers[hw->wiphy->n_cipher_suites] = 354 WLAN_CIPHER_SUITE_GCMP_256; 355 hw->wiphy->n_cipher_suites++; 356 } 357 358 if (iwlwifi_mod_params.swcrypto) 359 IWL_ERR(mvm, 360 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 361 if (!iwlwifi_mod_params.bt_coex_active) 362 IWL_ERR(mvm, 363 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 364 365 ieee80211_hw_set(hw, MFP_CAPABLE); 366 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 367 hw->wiphy->n_cipher_suites++; 368 if (iwl_mvm_has_new_rx_api(mvm)) { 369 mvm->ciphers[hw->wiphy->n_cipher_suites] = 370 WLAN_CIPHER_SUITE_BIP_GMAC_128; 371 hw->wiphy->n_cipher_suites++; 372 mvm->ciphers[hw->wiphy->n_cipher_suites] = 373 WLAN_CIPHER_SUITE_BIP_GMAC_256; 374 hw->wiphy->n_cipher_suites++; 375 } 376 377 wiphy_ext_feature_set(hw->wiphy, 378 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 379 380 if (fw_has_capa(&mvm->fw->ucode_capa, 381 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 382 wiphy_ext_feature_set(hw->wiphy, 383 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 384 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 385 } 386 387 if (fw_has_capa(&mvm->fw->ucode_capa, 388 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 389 wiphy_ext_feature_set(hw->wiphy, 390 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 391 392 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 393 hw->wiphy->features |= 394 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 395 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 396 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 397 398 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 399 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 400 hw->chanctx_data_size = sizeof(u16); 401 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 402 403 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 404 BIT(NL80211_IFTYPE_P2P_CLIENT) | 405 BIT(NL80211_IFTYPE_AP) | 406 BIT(NL80211_IFTYPE_P2P_GO) | 407 BIT(NL80211_IFTYPE_P2P_DEVICE) | 408 BIT(NL80211_IFTYPE_ADHOC); 409 410 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 411 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 412 413 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 414 * the hw, preventing us to control which key(id) to use per MPDU. 415 * Till that's fixed we can't use Extended Key ID for the newer cards. 416 */ 417 if (!iwl_mvm_has_new_tx_api(mvm)) 418 wiphy_ext_feature_set(hw->wiphy, 419 NL80211_EXT_FEATURE_EXT_KEY_ID); 420 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 421 422 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 423 if (iwl_mvm_is_lar_supported(mvm)) 424 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 425 else 426 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 427 REGULATORY_DISABLE_BEACON_HINTS; 428 429 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 430 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 431 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 432 433 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 434 hw->wiphy->n_iface_combinations = 435 ARRAY_SIZE(iwl_mvm_iface_combinations); 436 437 hw->wiphy->max_remain_on_channel_duration = 10000; 438 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 439 440 /* Extract MAC address */ 441 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 442 hw->wiphy->addresses = mvm->addresses; 443 hw->wiphy->n_addresses = 1; 444 445 /* Extract additional MAC addresses if available */ 446 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 447 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 448 449 for (i = 1; i < num_mac; i++) { 450 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 451 ETH_ALEN); 452 mvm->addresses[i].addr[5]++; 453 hw->wiphy->n_addresses++; 454 } 455 456 iwl_mvm_reset_phy_ctxts(mvm); 457 458 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 459 460 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 461 462 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 463 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 464 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 465 466 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 467 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 468 else 469 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 470 471 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 472 hw->wiphy->bands[NL80211_BAND_2GHZ] = 473 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 474 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 475 hw->wiphy->bands[NL80211_BAND_5GHZ] = 476 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 477 478 if (fw_has_capa(&mvm->fw->ucode_capa, 479 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 480 fw_has_api(&mvm->fw->ucode_capa, 481 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 482 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 483 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 484 } 485 if (fw_has_capa(&mvm->fw->ucode_capa, 486 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 487 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 488 hw->wiphy->bands[NL80211_BAND_6GHZ] = 489 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 490 491 hw->wiphy->hw_version = mvm->trans->hw_id; 492 493 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 494 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 495 else 496 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 497 498 hw->wiphy->max_sched_scan_reqs = 1; 499 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 500 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 501 /* we create the 802.11 header and zero length SSID IE. */ 502 hw->wiphy->max_sched_scan_ie_len = 503 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 504 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 505 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 506 507 /* 508 * the firmware uses u8 for num of iterations, but 0xff is saved for 509 * infinite loop, so the maximum number of iterations is actually 254. 510 */ 511 hw->wiphy->max_sched_scan_plan_iterations = 254; 512 513 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 514 NL80211_FEATURE_LOW_PRIORITY_SCAN | 515 NL80211_FEATURE_P2P_GO_OPPPS | 516 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 517 NL80211_FEATURE_DYNAMIC_SMPS | 518 NL80211_FEATURE_STATIC_SMPS | 519 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 520 521 if (fw_has_capa(&mvm->fw->ucode_capa, 522 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 523 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 524 if (fw_has_capa(&mvm->fw->ucode_capa, 525 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 526 hw->wiphy->features |= NL80211_FEATURE_QUIET; 527 528 if (fw_has_capa(&mvm->fw->ucode_capa, 529 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 530 hw->wiphy->features |= 531 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 532 533 if (fw_has_capa(&mvm->fw->ucode_capa, 534 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 535 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 536 537 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 538 IWL_FW_CMD_VER_UNKNOWN) == 3) 539 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 540 541 if (fw_has_api(&mvm->fw->ucode_capa, 542 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 543 wiphy_ext_feature_set(hw->wiphy, 544 NL80211_EXT_FEATURE_SCAN_START_TIME); 545 wiphy_ext_feature_set(hw->wiphy, 546 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 547 } 548 549 if (iwl_mvm_is_oce_supported(mvm)) { 550 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 551 552 wiphy_ext_feature_set(hw->wiphy, 553 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 554 wiphy_ext_feature_set(hw->wiphy, 555 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 556 wiphy_ext_feature_set(hw->wiphy, 557 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 558 559 /* Old firmware also supports probe deferral and suppression */ 560 if (scan_ver < 15) 561 wiphy_ext_feature_set(hw->wiphy, 562 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 563 } 564 565 if (mvm->nvm_data->sku_cap_11ax_enable && 566 !iwlwifi_mod_params.disable_11ax) { 567 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 568 hw->wiphy->num_iftype_ext_capab = 569 ARRAY_SIZE(he_iftypes_ext_capa); 570 571 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 572 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 573 } 574 575 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 576 577 #ifdef CONFIG_PM_SLEEP 578 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 579 mvm->trans->ops->d3_suspend && 580 mvm->trans->ops->d3_resume && 581 device_can_wakeup(mvm->trans->dev)) { 582 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 583 WIPHY_WOWLAN_DISCONNECT | 584 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 585 WIPHY_WOWLAN_RFKILL_RELEASE | 586 WIPHY_WOWLAN_NET_DETECT; 587 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 588 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 589 WIPHY_WOWLAN_4WAY_HANDSHAKE; 590 591 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 592 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 593 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 594 mvm->wowlan.max_nd_match_sets = 595 iwl_umac_scan_get_max_profiles(mvm->fw); 596 hw->wiphy->wowlan = &mvm->wowlan; 597 } 598 #endif 599 600 ret = iwl_mvm_leds_init(mvm); 601 if (ret) 602 return ret; 603 604 if (fw_has_capa(&mvm->fw->ucode_capa, 605 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 606 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 607 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 608 ieee80211_hw_set(hw, TDLS_WIDER_BW); 609 } 610 611 if (fw_has_capa(&mvm->fw->ucode_capa, 612 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 613 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 614 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 615 } 616 617 hw->netdev_features |= mvm->cfg->features; 618 if (!iwl_mvm_is_csum_supported(mvm)) 619 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 620 621 if (mvm->cfg->vht_mu_mimo_supported) 622 wiphy_ext_feature_set(hw->wiphy, 623 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 624 625 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 626 wiphy_ext_feature_set(hw->wiphy, 627 NL80211_EXT_FEATURE_PROTECTED_TWT); 628 629 iwl_mvm_vendor_cmds_register(mvm); 630 631 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 632 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 633 634 ret = ieee80211_register_hw(mvm->hw); 635 if (ret) { 636 iwl_mvm_leds_exit(mvm); 637 } 638 639 return ret; 640 } 641 642 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 643 struct ieee80211_sta *sta) 644 { 645 if (likely(sta)) { 646 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 647 return; 648 } else { 649 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 650 return; 651 } 652 653 ieee80211_free_txskb(mvm->hw, skb); 654 } 655 656 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 657 struct ieee80211_tx_control *control, 658 struct sk_buff *skb) 659 { 660 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 661 struct ieee80211_sta *sta = control->sta; 662 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 663 struct ieee80211_hdr *hdr = (void *)skb->data; 664 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 665 IEEE80211_TX_CTL_TX_OFFCHAN; 666 667 if (iwl_mvm_is_radio_killed(mvm)) { 668 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 669 goto drop; 670 } 671 672 if (offchannel && 673 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 674 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 675 goto drop; 676 677 /* 678 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 679 * so we treat the others as broadcast 680 */ 681 if (ieee80211_is_mgmt(hdr->frame_control)) 682 sta = NULL; 683 684 /* If there is no sta, and it's not offchannel - send through AP */ 685 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 686 !offchannel) { 687 struct iwl_mvm_vif *mvmvif = 688 iwl_mvm_vif_from_mac80211(info->control.vif); 689 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 690 691 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 692 /* mac80211 holds rcu read lock */ 693 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 694 if (IS_ERR_OR_NULL(sta)) 695 goto drop; 696 } 697 } 698 699 iwl_mvm_tx_skb(mvm, skb, sta); 700 return; 701 drop: 702 ieee80211_free_txskb(hw, skb); 703 } 704 705 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 706 { 707 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 708 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 709 struct sk_buff *skb = NULL; 710 711 /* 712 * No need for threads to be pending here, they can leave the first 713 * taker all the work. 714 * 715 * mvmtxq->tx_request logic: 716 * 717 * If 0, no one is currently TXing, set to 1 to indicate current thread 718 * will now start TX and other threads should quit. 719 * 720 * If 1, another thread is currently TXing, set to 2 to indicate to 721 * that thread that there was another request. Since that request may 722 * have raced with the check whether the queue is empty, the TXing 723 * thread should check the queue's status one more time before leaving. 724 * This check is done in order to not leave any TX hanging in the queue 725 * until the next TX invocation (which may not even happen). 726 * 727 * If 2, another thread is currently TXing, and it will already double 728 * check the queue, so do nothing. 729 */ 730 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 731 return; 732 733 rcu_read_lock(); 734 do { 735 while (likely(!mvmtxq->stopped && 736 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 737 skb = ieee80211_tx_dequeue(hw, txq); 738 739 if (!skb) { 740 if (txq->sta) 741 IWL_DEBUG_TX(mvm, 742 "TXQ of sta %pM tid %d is now empty\n", 743 txq->sta->addr, 744 txq->tid); 745 break; 746 } 747 748 iwl_mvm_tx_skb(mvm, skb, txq->sta); 749 } 750 } while (atomic_dec_return(&mvmtxq->tx_request)); 751 rcu_read_unlock(); 752 } 753 754 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 755 struct ieee80211_txq *txq) 756 { 757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 758 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 759 760 /* 761 * Please note that racing is handled very carefully here: 762 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 763 * deleted afterwards. 764 * This means that if: 765 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 766 * queue is allocated and we can TX. 767 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 768 * a race, should defer the frame. 769 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 770 * need to allocate the queue and defer the frame. 771 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 772 * queue is already scheduled for allocation, no need to allocate, 773 * should defer the frame. 774 */ 775 776 /* If the queue is allocated TX and return. */ 777 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 778 /* 779 * Check that list is empty to avoid a race where txq_id is 780 * already updated, but the queue allocation work wasn't 781 * finished 782 */ 783 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 784 return; 785 786 iwl_mvm_mac_itxq_xmit(hw, txq); 787 return; 788 } 789 790 /* The list is being deleted only after the queue is fully allocated. */ 791 if (!list_empty(&mvmtxq->list)) 792 return; 793 794 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 795 schedule_work(&mvm->add_stream_wk); 796 } 797 798 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 799 do { \ 800 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 801 break; \ 802 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 803 } while (0) 804 805 static void 806 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 807 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 808 enum ieee80211_ampdu_mlme_action action) 809 { 810 struct iwl_fw_dbg_trigger_tlv *trig; 811 struct iwl_fw_dbg_trigger_ba *ba_trig; 812 813 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 814 FW_DBG_TRIGGER_BA); 815 if (!trig) 816 return; 817 818 ba_trig = (void *)trig->data; 819 820 switch (action) { 821 case IEEE80211_AMPDU_TX_OPERATIONAL: { 822 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 823 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 824 825 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 826 "TX AGG START: MAC %pM tid %d ssn %d\n", 827 sta->addr, tid, tid_data->ssn); 828 break; 829 } 830 case IEEE80211_AMPDU_TX_STOP_CONT: 831 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 832 "TX AGG STOP: MAC %pM tid %d\n", 833 sta->addr, tid); 834 break; 835 case IEEE80211_AMPDU_RX_START: 836 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 837 "RX AGG START: MAC %pM tid %d ssn %d\n", 838 sta->addr, tid, rx_ba_ssn); 839 break; 840 case IEEE80211_AMPDU_RX_STOP: 841 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 842 "RX AGG STOP: MAC %pM tid %d\n", 843 sta->addr, tid); 844 break; 845 default: 846 break; 847 } 848 } 849 850 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 851 struct ieee80211_vif *vif, 852 struct ieee80211_ampdu_params *params) 853 { 854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 855 int ret; 856 struct ieee80211_sta *sta = params->sta; 857 enum ieee80211_ampdu_mlme_action action = params->action; 858 u16 tid = params->tid; 859 u16 *ssn = ¶ms->ssn; 860 u16 buf_size = params->buf_size; 861 bool amsdu = params->amsdu; 862 u16 timeout = params->timeout; 863 864 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 865 sta->addr, tid, action); 866 867 if (!(mvm->nvm_data->sku_cap_11n_enable)) 868 return -EACCES; 869 870 mutex_lock(&mvm->mutex); 871 872 switch (action) { 873 case IEEE80211_AMPDU_RX_START: 874 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 875 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 876 struct iwl_mvm_vif *mvmvif; 877 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 878 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 879 880 mdata->opened_rx_ba_sessions = true; 881 mvmvif = iwl_mvm_vif_from_mac80211(vif); 882 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 883 } 884 if (!iwl_enable_rx_ampdu()) { 885 ret = -EINVAL; 886 break; 887 } 888 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 889 timeout); 890 break; 891 case IEEE80211_AMPDU_RX_STOP: 892 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 893 timeout); 894 break; 895 case IEEE80211_AMPDU_TX_START: 896 if (!iwl_enable_tx_ampdu()) { 897 ret = -EINVAL; 898 break; 899 } 900 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 901 break; 902 case IEEE80211_AMPDU_TX_STOP_CONT: 903 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 904 break; 905 case IEEE80211_AMPDU_TX_STOP_FLUSH: 906 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 907 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 908 break; 909 case IEEE80211_AMPDU_TX_OPERATIONAL: 910 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 911 buf_size, amsdu); 912 break; 913 default: 914 WARN_ON_ONCE(1); 915 ret = -EINVAL; 916 break; 917 } 918 919 if (!ret) { 920 u16 rx_ba_ssn = 0; 921 922 if (action == IEEE80211_AMPDU_RX_START) 923 rx_ba_ssn = *ssn; 924 925 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 926 rx_ba_ssn, action); 927 } 928 mutex_unlock(&mvm->mutex); 929 930 return ret; 931 } 932 933 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 934 struct ieee80211_vif *vif) 935 { 936 struct iwl_mvm *mvm = data; 937 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 938 939 mvmvif->uploaded = false; 940 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 941 942 spin_lock_bh(&mvm->time_event_lock); 943 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 944 spin_unlock_bh(&mvm->time_event_lock); 945 946 mvmvif->phy_ctxt = NULL; 947 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 948 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 949 } 950 951 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 952 { 953 iwl_mvm_stop_device(mvm); 954 955 mvm->cur_aid = 0; 956 957 mvm->scan_status = 0; 958 mvm->ps_disabled = false; 959 mvm->rfkill_safe_init_done = false; 960 961 /* just in case one was running */ 962 iwl_mvm_cleanup_roc_te(mvm); 963 ieee80211_remain_on_channel_expired(mvm->hw); 964 965 iwl_mvm_ftm_restart(mvm); 966 967 /* 968 * cleanup all interfaces, even inactive ones, as some might have 969 * gone down during the HW restart 970 */ 971 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 972 973 mvm->p2p_device_vif = NULL; 974 975 iwl_mvm_reset_phy_ctxts(mvm); 976 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 977 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 978 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 979 980 ieee80211_wake_queues(mvm->hw); 981 982 mvm->rx_ba_sessions = 0; 983 mvm->fwrt.dump.conf = FW_DBG_INVALID; 984 mvm->monitor_on = false; 985 986 /* keep statistics ticking */ 987 iwl_mvm_accu_radio_stats(mvm); 988 } 989 990 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 991 { 992 int ret; 993 994 lockdep_assert_held(&mvm->mutex); 995 996 ret = iwl_mvm_mei_get_ownership(mvm); 997 if (ret) 998 return ret; 999 1000 if (mvm->mei_nvm_data) { 1001 /* We got the NIC, we can now free the MEI NVM data */ 1002 kfree(mvm->mei_nvm_data); 1003 mvm->mei_nvm_data = NULL; 1004 1005 /* 1006 * We can't free the nvm_data we allocated based on the SAP 1007 * data because we registered to cfg80211 with the channels 1008 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1009 * just in order to be able free it later. 1010 * NULLify nvm_data so that we will read the NVM from the 1011 * firmware this time. 1012 */ 1013 mvm->temp_nvm_data = mvm->nvm_data; 1014 mvm->nvm_data = NULL; 1015 } 1016 1017 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1018 /* 1019 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1020 * so later code will - from now on - see that we're doing it. 1021 */ 1022 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1023 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1024 /* Clean up some internal and mac80211 state on restart */ 1025 iwl_mvm_restart_cleanup(mvm); 1026 } 1027 ret = iwl_mvm_up(mvm); 1028 1029 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1030 NULL); 1031 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1032 NULL); 1033 1034 mvm->last_reset_or_resume_time_jiffies = jiffies; 1035 1036 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1037 /* Something went wrong - we need to finish some cleanup 1038 * that normally iwl_mvm_mac_restart_complete() below 1039 * would do. 1040 */ 1041 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1042 } 1043 1044 return ret; 1045 } 1046 1047 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1048 { 1049 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1050 int ret; 1051 int retry, max_retry = 0; 1052 1053 mutex_lock(&mvm->mutex); 1054 1055 /* we are starting the mac not in error flow, and restart is enabled */ 1056 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1057 iwlwifi_mod_params.fw_restart) { 1058 max_retry = IWL_MAX_INIT_RETRY; 1059 /* 1060 * This will prevent mac80211 recovery flows to trigger during 1061 * init failures 1062 */ 1063 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1064 } 1065 1066 for (retry = 0; retry <= max_retry; retry++) { 1067 ret = __iwl_mvm_mac_start(mvm); 1068 if (!ret) 1069 break; 1070 1071 /* 1072 * In PLDR sync PCI re-enumeration is needed. no point to retry 1073 * mac start before that. 1074 */ 1075 if (mvm->pldr_sync) { 1076 iwl_mei_alive_notif(false); 1077 iwl_trans_pcie_remove(mvm->trans, true); 1078 break; 1079 } 1080 1081 IWL_ERR(mvm, "mac start retry %d\n", retry); 1082 } 1083 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1084 1085 mutex_unlock(&mvm->mutex); 1086 1087 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1088 1089 return ret; 1090 } 1091 1092 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1093 { 1094 int ret; 1095 1096 mutex_lock(&mvm->mutex); 1097 1098 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1099 1100 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1101 if (ret) 1102 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1103 ret); 1104 1105 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1106 1107 /* 1108 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1109 * of packets the FW sent out, so we must reconnect. 1110 */ 1111 iwl_mvm_teardown_tdls_peers(mvm); 1112 1113 mutex_unlock(&mvm->mutex); 1114 } 1115 1116 static void 1117 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1118 enum ieee80211_reconfig_type reconfig_type) 1119 { 1120 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1121 1122 switch (reconfig_type) { 1123 case IEEE80211_RECONFIG_TYPE_RESTART: 1124 iwl_mvm_restart_complete(mvm); 1125 break; 1126 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1127 break; 1128 } 1129 } 1130 1131 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1132 { 1133 lockdep_assert_held(&mvm->mutex); 1134 1135 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1136 1137 /* firmware counters are obviously reset now, but we shouldn't 1138 * partially track so also clear the fw_reset_accu counters. 1139 */ 1140 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1141 1142 /* async_handlers_wk is now blocked */ 1143 1144 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) < 12) 1145 iwl_mvm_rm_aux_sta(mvm); 1146 1147 iwl_mvm_stop_device(mvm); 1148 1149 iwl_mvm_async_handlers_purge(mvm); 1150 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1151 1152 /* 1153 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1154 * hw (as restart_complete() won't be called in this case) and mac80211 1155 * won't execute the restart. 1156 * But make sure to cleanup interfaces that have gone down before/during 1157 * HW restart was requested. 1158 */ 1159 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1160 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1161 &mvm->status)) 1162 ieee80211_iterate_interfaces(mvm->hw, 0, 1163 iwl_mvm_cleanup_iterator, mvm); 1164 1165 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1166 * make sure there's nothing left there and warn if any is found. 1167 */ 1168 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1169 int i; 1170 1171 for (i = 0; i < mvm->max_scans; i++) { 1172 if (WARN_ONCE(mvm->scan_uid_status[i], 1173 "UMAC scan UID %d status was not cleaned\n", 1174 i)) 1175 mvm->scan_uid_status[i] = 0; 1176 } 1177 } 1178 } 1179 1180 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1181 { 1182 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1183 1184 flush_work(&mvm->async_handlers_wk); 1185 flush_work(&mvm->add_stream_wk); 1186 1187 /* 1188 * Lock and clear the firmware running bit here already, so that 1189 * new commands coming in elsewhere, e.g. from debugfs, will not 1190 * be able to proceed. This is important here because one of those 1191 * debugfs files causes the firmware dump to be triggered, and if we 1192 * don't stop debugfs accesses before canceling that it could be 1193 * retriggered after we flush it but before we've cleared the bit. 1194 */ 1195 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1196 1197 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1198 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1199 1200 /* 1201 * The work item could be running or queued if the 1202 * ROC time event stops just as we get here. 1203 */ 1204 flush_work(&mvm->roc_done_wk); 1205 1206 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1207 1208 mutex_lock(&mvm->mutex); 1209 __iwl_mvm_mac_stop(mvm); 1210 mutex_unlock(&mvm->mutex); 1211 1212 /* 1213 * The worker might have been waiting for the mutex, let it run and 1214 * discover that its list is now empty. 1215 */ 1216 cancel_work_sync(&mvm->async_handlers_wk); 1217 } 1218 1219 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1220 { 1221 u16 i; 1222 1223 lockdep_assert_held(&mvm->mutex); 1224 1225 for (i = 0; i < NUM_PHY_CTX; i++) 1226 if (!mvm->phy_ctxts[i].ref) 1227 return &mvm->phy_ctxts[i]; 1228 1229 IWL_ERR(mvm, "No available PHY context\n"); 1230 return NULL; 1231 } 1232 1233 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1234 s16 tx_power) 1235 { 1236 u32 cmd_id = REDUCE_TX_POWER_CMD; 1237 int len; 1238 struct iwl_dev_tx_power_cmd cmd = { 1239 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1240 .common.mac_context_id = 1241 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1242 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1243 }; 1244 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1245 IWL_FW_CMD_VER_UNKNOWN); 1246 1247 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1248 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1249 1250 if (cmd_ver == 7) 1251 len = sizeof(cmd.v7); 1252 else if (cmd_ver == 6) 1253 len = sizeof(cmd.v6); 1254 else if (fw_has_api(&mvm->fw->ucode_capa, 1255 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1256 len = sizeof(cmd.v5); 1257 else if (fw_has_capa(&mvm->fw->ucode_capa, 1258 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1259 len = sizeof(cmd.v4); 1260 else 1261 len = sizeof(cmd.v3); 1262 1263 /* all structs have the same common part, add it */ 1264 len += sizeof(cmd.common); 1265 1266 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1267 } 1268 1269 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1270 struct ieee80211_vif *vif) 1271 { 1272 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1273 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1274 int ret; 1275 1276 mutex_lock(&mvm->mutex); 1277 1278 if (vif->type == NL80211_IFTYPE_STATION) { 1279 struct iwl_mvm_sta *mvmsta; 1280 1281 mvmvif->csa_bcn_pending = false; 1282 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1283 mvmvif->ap_sta_id); 1284 1285 if (WARN_ON(!mvmsta)) { 1286 ret = -EIO; 1287 goto out_unlock; 1288 } 1289 1290 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1291 1292 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1293 1294 if (!fw_has_capa(&mvm->fw->ucode_capa, 1295 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1296 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1297 if (ret) 1298 goto out_unlock; 1299 1300 iwl_mvm_stop_session_protection(mvm, vif); 1301 } 1302 } 1303 1304 mvmvif->ps_disabled = false; 1305 1306 ret = iwl_mvm_power_update_ps(mvm); 1307 1308 out_unlock: 1309 if (mvmvif->csa_failed) 1310 ret = -EIO; 1311 mutex_unlock(&mvm->mutex); 1312 1313 return ret; 1314 } 1315 1316 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1317 struct ieee80211_vif *vif) 1318 { 1319 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1320 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1321 struct iwl_chan_switch_te_cmd cmd = { 1322 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1323 mvmvif->color)), 1324 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1325 }; 1326 1327 /* 1328 * In the new flow since FW is in charge of the timing, 1329 * if driver has canceled the channel switch he will receive the 1330 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1331 */ 1332 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1333 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1334 return; 1335 1336 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1337 1338 mutex_lock(&mvm->mutex); 1339 if (!fw_has_capa(&mvm->fw->ucode_capa, 1340 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1341 iwl_mvm_remove_csa_period(mvm, vif); 1342 else 1343 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1344 WIDE_ID(MAC_CONF_GROUP, 1345 CHANNEL_SWITCH_TIME_EVENT_CMD), 1346 0, sizeof(cmd), &cmd)); 1347 mvmvif->csa_failed = true; 1348 mutex_unlock(&mvm->mutex); 1349 1350 iwl_mvm_post_channel_switch(hw, vif); 1351 } 1352 1353 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1354 { 1355 struct iwl_mvm_vif *mvmvif; 1356 struct ieee80211_vif *vif; 1357 1358 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1359 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1360 1361 /* Trigger disconnect (should clear the CSA state) */ 1362 ieee80211_chswitch_done(vif, false); 1363 } 1364 1365 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1366 struct ieee80211_vif *vif) 1367 { 1368 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1369 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1370 int ret; 1371 1372 mvmvif->mvm = mvm; 1373 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1374 1375 /* 1376 * Not much to do here. The stack will not allow interface 1377 * types or combinations that we didn't advertise, so we 1378 * don't really have to check the types. 1379 */ 1380 1381 mutex_lock(&mvm->mutex); 1382 1383 /* make sure that beacon statistics don't go backwards with FW reset */ 1384 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1385 mvmvif->beacon_stats.accu_num_beacons += 1386 mvmvif->beacon_stats.num_beacons; 1387 1388 /* Allocate resources for the MAC context, and add it to the fw */ 1389 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1390 if (ret) 1391 goto out_unlock; 1392 1393 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1394 1395 /* 1396 * The AP binding flow can be done only after the beacon 1397 * template is configured (which happens only in the mac80211 1398 * start_ap() flow), and adding the broadcast station can happen 1399 * only after the binding. 1400 * In addition, since modifying the MAC before adding a bcast 1401 * station is not allowed by the FW, delay the adding of MAC context to 1402 * the point where we can also add the bcast station. 1403 * In short: there's not much we can do at this point, other than 1404 * allocating resources :) 1405 */ 1406 if (vif->type == NL80211_IFTYPE_AP || 1407 vif->type == NL80211_IFTYPE_ADHOC) { 1408 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1409 if (ret) { 1410 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1411 goto out_unlock; 1412 } 1413 1414 /* 1415 * Only queue for this station is the mcast queue, 1416 * which shouldn't be in TFD mask anyway 1417 */ 1418 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1419 0, vif->type, 1420 IWL_STA_MULTICAST); 1421 if (ret) 1422 goto out_unlock; 1423 1424 iwl_mvm_vif_dbgfs_register(mvm, vif); 1425 goto out_unlock; 1426 } 1427 1428 mvmvif->features |= hw->netdev_features; 1429 1430 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1431 if (ret) 1432 goto out_unlock; 1433 1434 ret = iwl_mvm_power_update_mac(mvm); 1435 if (ret) 1436 goto out_remove_mac; 1437 1438 /* beacon filtering */ 1439 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1440 if (ret) 1441 goto out_remove_mac; 1442 1443 if (!mvm->bf_allowed_vif && 1444 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1445 mvm->bf_allowed_vif = mvmvif; 1446 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1447 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1448 } 1449 1450 /* 1451 * P2P_DEVICE interface does not have a channel context assigned to it, 1452 * so a dedicated PHY context is allocated to it and the corresponding 1453 * MAC context is bound to it at this stage. 1454 */ 1455 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1456 1457 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1458 if (!mvmvif->phy_ctxt) { 1459 ret = -ENOSPC; 1460 goto out_free_bf; 1461 } 1462 1463 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1464 ret = iwl_mvm_binding_add_vif(mvm, vif); 1465 if (ret) 1466 goto out_unref_phy; 1467 1468 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1469 if (ret) 1470 goto out_unbind; 1471 1472 /* Save a pointer to p2p device vif, so it can later be used to 1473 * update the p2p device MAC when a GO is started/stopped */ 1474 mvm->p2p_device_vif = vif; 1475 } 1476 1477 iwl_mvm_tcm_add_vif(mvm, vif); 1478 INIT_DELAYED_WORK(&mvmvif->csa_work, 1479 iwl_mvm_channel_switch_disconnect_wk); 1480 1481 if (vif->type == NL80211_IFTYPE_MONITOR) 1482 mvm->monitor_on = true; 1483 1484 iwl_mvm_vif_dbgfs_register(mvm, vif); 1485 1486 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1487 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1488 !mvm->csme_vif && mvm->mei_registered) { 1489 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1490 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1491 mvm->csme_vif = vif; 1492 } 1493 1494 goto out_unlock; 1495 1496 out_unbind: 1497 iwl_mvm_binding_remove_vif(mvm, vif); 1498 out_unref_phy: 1499 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1500 out_free_bf: 1501 if (mvm->bf_allowed_vif == mvmvif) { 1502 mvm->bf_allowed_vif = NULL; 1503 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1504 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1505 } 1506 out_remove_mac: 1507 mvmvif->phy_ctxt = NULL; 1508 iwl_mvm_mac_ctxt_remove(mvm, vif); 1509 out_unlock: 1510 mutex_unlock(&mvm->mutex); 1511 1512 return ret; 1513 } 1514 1515 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1516 struct ieee80211_vif *vif) 1517 { 1518 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1519 /* 1520 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1521 * We assume here that all the packets sent to the OFFCHANNEL 1522 * queue are sent in ROC session. 1523 */ 1524 flush_work(&mvm->roc_done_wk); 1525 } 1526 } 1527 1528 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1529 struct ieee80211_vif *vif) 1530 { 1531 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1532 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1533 struct iwl_probe_resp_data *probe_data; 1534 1535 iwl_mvm_prepare_mac_removal(mvm, vif); 1536 1537 if (!(vif->type == NL80211_IFTYPE_AP || 1538 vif->type == NL80211_IFTYPE_ADHOC)) 1539 iwl_mvm_tcm_rm_vif(mvm, vif); 1540 1541 mutex_lock(&mvm->mutex); 1542 1543 if (vif == mvm->csme_vif) { 1544 iwl_mei_set_netdev(NULL); 1545 mvm->csme_vif = NULL; 1546 } 1547 1548 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1549 lockdep_is_held(&mvm->mutex)); 1550 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1551 if (probe_data) 1552 kfree_rcu(probe_data, rcu_head); 1553 1554 if (mvm->bf_allowed_vif == mvmvif) { 1555 mvm->bf_allowed_vif = NULL; 1556 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1557 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1558 } 1559 1560 if (vif->bss_conf.ftm_responder) 1561 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1562 1563 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1564 1565 /* 1566 * For AP/GO interface, the tear down of the resources allocated to the 1567 * interface is be handled as part of the stop_ap flow. 1568 */ 1569 if (vif->type == NL80211_IFTYPE_AP || 1570 vif->type == NL80211_IFTYPE_ADHOC) { 1571 #ifdef CONFIG_NL80211_TESTMODE 1572 if (vif == mvm->noa_vif) { 1573 mvm->noa_vif = NULL; 1574 mvm->noa_duration = 0; 1575 } 1576 #endif 1577 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1578 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1579 goto out_release; 1580 } 1581 1582 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1583 mvm->p2p_device_vif = NULL; 1584 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1585 iwl_mvm_binding_remove_vif(mvm, vif); 1586 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1587 mvmvif->phy_ctxt = NULL; 1588 } 1589 1590 iwl_mvm_power_update_mac(mvm); 1591 iwl_mvm_mac_ctxt_remove(mvm, vif); 1592 1593 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1594 1595 if (vif->type == NL80211_IFTYPE_MONITOR) 1596 mvm->monitor_on = false; 1597 1598 out_release: 1599 mutex_unlock(&mvm->mutex); 1600 } 1601 1602 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1603 { 1604 return 0; 1605 } 1606 1607 struct iwl_mvm_mc_iter_data { 1608 struct iwl_mvm *mvm; 1609 int port_id; 1610 }; 1611 1612 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1613 struct ieee80211_vif *vif) 1614 { 1615 struct iwl_mvm_mc_iter_data *data = _data; 1616 struct iwl_mvm *mvm = data->mvm; 1617 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1618 struct iwl_host_cmd hcmd = { 1619 .id = MCAST_FILTER_CMD, 1620 .flags = CMD_ASYNC, 1621 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1622 }; 1623 int ret, len; 1624 1625 /* if we don't have free ports, mcast frames will be dropped */ 1626 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1627 return; 1628 1629 if (vif->type != NL80211_IFTYPE_STATION || 1630 !vif->cfg.assoc) 1631 return; 1632 1633 cmd->port_id = data->port_id++; 1634 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1635 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1636 1637 hcmd.len[0] = len; 1638 hcmd.data[0] = cmd; 1639 1640 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1641 if (ret) 1642 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1643 } 1644 1645 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1646 { 1647 struct iwl_mvm_mc_iter_data iter_data = { 1648 .mvm = mvm, 1649 }; 1650 int ret; 1651 1652 lockdep_assert_held(&mvm->mutex); 1653 1654 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1655 return; 1656 1657 ieee80211_iterate_active_interfaces_atomic( 1658 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1659 iwl_mvm_mc_iface_iterator, &iter_data); 1660 1661 /* 1662 * Send a (synchronous) ech command so that we wait for the 1663 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1664 * the interface iterator. Otherwise, we might get here over 1665 * and over again (by userspace just sending a lot of these) 1666 * and the CPU can send them faster than the firmware can 1667 * process them. 1668 * Note that the CPU is still faster - but with this we'll 1669 * actually send fewer commands overall because the CPU will 1670 * not schedule the work in mac80211 as frequently if it's 1671 * still running when rescheduled (possibly multiple times). 1672 */ 1673 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1674 if (ret) 1675 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1676 } 1677 1678 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1679 struct netdev_hw_addr_list *mc_list) 1680 { 1681 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1682 struct iwl_mcast_filter_cmd *cmd; 1683 struct netdev_hw_addr *addr; 1684 int addr_count; 1685 bool pass_all; 1686 int len; 1687 1688 addr_count = netdev_hw_addr_list_count(mc_list); 1689 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1690 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1691 if (pass_all) 1692 addr_count = 0; 1693 1694 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1695 cmd = kzalloc(len, GFP_ATOMIC); 1696 if (!cmd) 1697 return 0; 1698 1699 if (pass_all) { 1700 cmd->pass_all = 1; 1701 return (u64)(unsigned long)cmd; 1702 } 1703 1704 netdev_hw_addr_list_for_each(addr, mc_list) { 1705 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1706 cmd->count, addr->addr); 1707 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1708 addr->addr, ETH_ALEN); 1709 cmd->count++; 1710 } 1711 1712 return (u64)(unsigned long)cmd; 1713 } 1714 1715 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1716 unsigned int changed_flags, 1717 unsigned int *total_flags, 1718 u64 multicast) 1719 { 1720 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1721 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1722 1723 mutex_lock(&mvm->mutex); 1724 1725 /* replace previous configuration */ 1726 kfree(mvm->mcast_filter_cmd); 1727 mvm->mcast_filter_cmd = cmd; 1728 1729 if (!cmd) 1730 goto out; 1731 1732 if (changed_flags & FIF_ALLMULTI) 1733 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1734 1735 if (cmd->pass_all) 1736 cmd->count = 0; 1737 1738 iwl_mvm_recalc_multicast(mvm); 1739 out: 1740 mutex_unlock(&mvm->mutex); 1741 *total_flags = 0; 1742 } 1743 1744 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1745 struct ieee80211_vif *vif, 1746 unsigned int filter_flags, 1747 unsigned int changed_flags) 1748 { 1749 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1750 1751 /* We support only filter for probe requests */ 1752 if (!(changed_flags & FIF_PROBE_REQ)) 1753 return; 1754 1755 /* Supported only for p2p client interfaces */ 1756 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1757 !vif->p2p) 1758 return; 1759 1760 mutex_lock(&mvm->mutex); 1761 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1762 mutex_unlock(&mvm->mutex); 1763 } 1764 1765 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1766 struct ieee80211_vif *vif) 1767 { 1768 struct iwl_mu_group_mgmt_cmd cmd = {}; 1769 1770 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1771 WLAN_MEMBERSHIP_LEN); 1772 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1773 WLAN_USER_POSITION_LEN); 1774 1775 return iwl_mvm_send_cmd_pdu(mvm, 1776 WIDE_ID(DATA_PATH_GROUP, 1777 UPDATE_MU_GROUPS_CMD), 1778 0, sizeof(cmd), &cmd); 1779 } 1780 1781 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1782 struct ieee80211_vif *vif) 1783 { 1784 if (vif->bss_conf.mu_mimo_owner) { 1785 struct iwl_mu_group_mgmt_notif *notif = _data; 1786 1787 /* 1788 * MU-MIMO Group Id action frame is little endian. We treat 1789 * the data received from firmware as if it came from the 1790 * action frame, so no conversion is needed. 1791 */ 1792 ieee80211_update_mu_groups(vif, 0, 1793 (u8 *)¬if->membership_status, 1794 (u8 *)¬if->user_position); 1795 } 1796 } 1797 1798 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1799 struct iwl_rx_cmd_buffer *rxb) 1800 { 1801 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1802 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1803 1804 ieee80211_iterate_active_interfaces_atomic( 1805 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1806 iwl_mvm_mu_mimo_iface_iterator, notif); 1807 } 1808 1809 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1810 { 1811 u8 byte_num = ppe_pos_bit / 8; 1812 u8 bit_num = ppe_pos_bit % 8; 1813 u8 residue_bits; 1814 u8 res; 1815 1816 if (bit_num <= 5) 1817 return (ppe[byte_num] >> bit_num) & 1818 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1819 1820 /* 1821 * If bit_num > 5, we have to combine bits with next byte. 1822 * Calculate how many bits we need to take from current byte (called 1823 * here "residue_bits"), and add them to bits from next byte. 1824 */ 1825 1826 residue_bits = 8 - bit_num; 1827 1828 res = (ppe[byte_num + 1] & 1829 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1830 residue_bits; 1831 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1832 1833 return res; 1834 } 1835 1836 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1837 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1838 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 1839 bool inheritance) 1840 { 1841 int i; 1842 1843 /* 1844 * FW currently supports only nss == MAX_HE_SUPP_NSS 1845 * 1846 * If nss > MAX: we can ignore values we don't support 1847 * If nss < MAX: we can set zeros in other streams 1848 */ 1849 if (nss > MAX_HE_SUPP_NSS) { 1850 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 1851 MAX_HE_SUPP_NSS); 1852 nss = MAX_HE_SUPP_NSS; 1853 } 1854 1855 for (i = 0; i < nss; i++) { 1856 u8 ru_index_tmp = ru_index_bitmap << 1; 1857 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 1858 u8 bw; 1859 1860 for (bw = 0; 1861 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1862 bw++) { 1863 ru_index_tmp >>= 1; 1864 1865 /* 1866 * According to the 11be spec, if for a specific BW the PPE Thresholds 1867 * isn't present - it should inherit the thresholds from the last 1868 * BW for which we had PPE Thresholds. In 11ax though, we don't have 1869 * this inheritance - continue in this case 1870 */ 1871 if (!(ru_index_tmp & 1)) { 1872 if (inheritance) 1873 goto set_thresholds; 1874 else 1875 continue; 1876 } 1877 1878 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 1879 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 1880 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 1881 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 1882 1883 set_thresholds: 1884 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 1885 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 1886 } 1887 } 1888 } 1889 1890 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 1891 struct ieee80211_sta *sta, 1892 struct iwl_he_pkt_ext_v2 *pkt_ext, 1893 bool inheritance) 1894 { 1895 u8 nss = (sta->deflink.he_cap.ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) + 1; 1896 u8 *ppe = &sta->deflink.he_cap.ppe_thres[0]; 1897 u8 ru_index_bitmap = 1898 u8_get_bits(*ppe, 1899 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 1900 /* Starting after PPE header */ 1901 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 1902 1903 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 1904 inheritance); 1905 } 1906 1907 static void iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 1908 u8 nominal_padding, 1909 u32 *flags) 1910 { 1911 int low_th = -1; 1912 int high_th = -1; 1913 int i; 1914 1915 /* all the macros are the same for EHT and HE */ 1916 switch (nominal_padding) { 1917 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 1918 low_th = IWL_HE_PKT_EXT_NONE; 1919 high_th = IWL_HE_PKT_EXT_NONE; 1920 break; 1921 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 1922 low_th = IWL_HE_PKT_EXT_BPSK; 1923 high_th = IWL_HE_PKT_EXT_NONE; 1924 break; 1925 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 1926 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 1927 low_th = IWL_HE_PKT_EXT_NONE; 1928 high_th = IWL_HE_PKT_EXT_BPSK; 1929 break; 1930 } 1931 1932 /* Set the PPE thresholds accordingly */ 1933 if (low_th >= 0 && high_th >= 0) { 1934 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 1935 u8 bw; 1936 1937 for (bw = 0; 1938 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1939 bw++) { 1940 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 1941 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 1942 } 1943 } 1944 1945 *flags |= STA_CTXT_HE_PACKET_EXT; 1946 } 1947 } 1948 1949 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 1950 u8 nominal_padding) 1951 { 1952 int i; 1953 1954 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 1955 u8 bw; 1956 1957 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1958 bw++) { 1959 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 1960 1961 if (nominal_padding > 1962 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 1963 qam_th[1] == IWL_HE_PKT_EXT_NONE) 1964 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 1965 else if (nominal_padding == 1966 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 1967 qam_th[0] == IWL_HE_PKT_EXT_NONE && 1968 qam_th[1] == IWL_HE_PKT_EXT_NONE) 1969 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 1970 } 1971 } 1972 } 1973 1974 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 1975 struct ieee80211_vif *vif, u8 sta_id) 1976 { 1977 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1978 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 1979 .sta_id = sta_id, 1980 .tid_limit = IWL_MAX_TID_COUNT, 1981 .bss_color = vif->bss_conf.he_bss_color.color, 1982 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 1983 .frame_time_rts_th = 1984 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 1985 }; 1986 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 1987 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 1988 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 1989 int size; 1990 struct ieee80211_sta *sta; 1991 u32 flags; 1992 int i; 1993 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 1994 struct ieee80211_chanctx_conf *chanctx_conf; 1995 const struct ieee80211_supported_band *sband; 1996 void *cmd; 1997 u8 nominal_padding; 1998 1999 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2000 ver = 1; 2001 2002 switch (ver) { 2003 case 1: 2004 /* same layout as v2 except some data at the end */ 2005 cmd = &sta_ctxt_cmd_v2; 2006 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2007 break; 2008 case 2: 2009 cmd = &sta_ctxt_cmd_v2; 2010 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2011 break; 2012 case 3: 2013 cmd = &sta_ctxt_cmd; 2014 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2015 break; 2016 default: 2017 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2018 return; 2019 } 2020 2021 rcu_read_lock(); 2022 2023 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf); 2024 if (WARN_ON(!chanctx_conf)) { 2025 rcu_read_unlock(); 2026 return; 2027 } 2028 2029 sband = mvm->hw->wiphy->bands[chanctx_conf->def.chan->band]; 2030 own_he_cap = ieee80211_get_he_iftype_cap(sband, 2031 ieee80211_vif_type_p2p(vif)); 2032 2033 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2034 if (IS_ERR_OR_NULL(sta)) { 2035 rcu_read_unlock(); 2036 WARN(1, "Can't find STA to configure HE\n"); 2037 return; 2038 } 2039 2040 if (!sta->deflink.he_cap.has_he) { 2041 rcu_read_unlock(); 2042 return; 2043 } 2044 2045 flags = 0; 2046 2047 /* Block 26-tone RU OFDMA transmissions */ 2048 if (mvmvif->he_ru_2mhz_block) 2049 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2050 2051 /* HTC flags */ 2052 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[0] & 2053 IEEE80211_HE_MAC_CAP0_HTC_HE) 2054 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2055 if ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] & 2056 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2057 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2058 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2059 u8 link_adap = 2060 ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2061 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2062 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] & 2063 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2064 2065 if (link_adap == 2) 2066 sta_ctxt_cmd.htc_flags |= 2067 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2068 else if (link_adap == 3) 2069 sta_ctxt_cmd.htc_flags |= 2070 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2071 } 2072 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2073 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2074 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[3] & 2075 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2076 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2077 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2078 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2079 2080 /* 2081 * Initialize the PPE thresholds to "None" (7), as described in Table 2082 * 9-262ac of 80211.ax/D3.0. 2083 */ 2084 memset(&sta_ctxt_cmd.pkt_ext, IWL_HE_PKT_EXT_NONE, 2085 sizeof(sta_ctxt_cmd.pkt_ext)); 2086 2087 if (sta->deflink.eht_cap.has_eht) { 2088 nominal_padding = 2089 u8_get_bits(sta->deflink.eht_cap.eht_cap_elem.phy_cap_info[5], 2090 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2091 2092 /* If PPE Thresholds exists, parse them into a FW-familiar format. */ 2093 if (sta->deflink.eht_cap.eht_cap_elem.phy_cap_info[5] & 2094 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2095 u8 nss = (sta->deflink.eht_cap.eht_ppe_thres[0] & 2096 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2097 u8 *ppe = &sta->deflink.eht_cap.eht_ppe_thres[0]; 2098 u8 ru_index_bitmap = 2099 u16_get_bits(*ppe, 2100 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2101 /* Starting after PPE header */ 2102 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2103 2104 iwl_mvm_parse_ppe(mvm, 2105 &sta_ctxt_cmd.pkt_ext, 2106 nss, ru_index_bitmap, ppe, 2107 ppe_pos_bit, true); 2108 flags |= STA_CTXT_HE_PACKET_EXT; 2109 /* EHT PPE Thresholds doesn't exist - set the API according to HE PPE Tresholds*/ 2110 } else if (sta->deflink.he_cap.he_cap_elem.phy_cap_info[6] & 2111 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2112 struct iwl_he_pkt_ext_v2 *pkt_ext = 2113 &sta_ctxt_cmd.pkt_ext; 2114 2115 /* 2116 * Even though HE Capabilities IE doesn't contain PPE 2117 * Thresholds for BW 320Mhz, thresholds for this BW will 2118 * be filled in with the same values as 160Mhz, due to 2119 * the inheritance, as required. 2120 */ 2121 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, sta, pkt_ext, 2122 true); 2123 2124 /* 2125 * According to the requirements, for MCSs 12-13 the maximum value between 2126 * HE PPE Threshold and Common Nominal Packet Padding needs to be taken 2127 */ 2128 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2129 2130 flags |= STA_CTXT_HE_PACKET_EXT; 2131 2132 /* 2133 * if PPE Thresholds doesn't present in both EHT IE and HE IE - 2134 * take the Thresholds from Common Nominal Packet Padding field 2135 */ 2136 } else { 2137 iwl_mvm_set_pkt_ext_from_nominal_padding(&sta_ctxt_cmd.pkt_ext, 2138 nominal_padding, 2139 &flags); 2140 } 2141 } else if (sta->deflink.he_cap.has_he) { 2142 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2143 if (sta->deflink.he_cap.he_cap_elem.phy_cap_info[6] & 2144 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2145 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, sta, 2146 &sta_ctxt_cmd.pkt_ext, 2147 false); 2148 flags |= STA_CTXT_HE_PACKET_EXT; 2149 /* 2150 * PPE Thresholds doesn't exist - set the API PPE values 2151 * according to Common Nominal Packet Padding field. 2152 */ 2153 } else { 2154 nominal_padding = 2155 u8_get_bits(sta->deflink.he_cap.he_cap_elem.phy_cap_info[9], 2156 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2157 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2158 iwl_mvm_set_pkt_ext_from_nominal_padding(&sta_ctxt_cmd.pkt_ext, 2159 nominal_padding, 2160 &flags); 2161 } 2162 } 2163 2164 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2165 int bw; 2166 2167 for (bw = 0; 2168 bw < ARRAY_SIZE(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i]); 2169 bw++) { 2170 u8 *qam_th = 2171 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0]; 2172 2173 IWL_DEBUG_HT(mvm, 2174 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2175 i, bw, qam_th[0], qam_th[1]); 2176 } 2177 } 2178 2179 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2180 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2181 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2182 2183 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2184 IEEE80211_HE_MAC_CAP2_ACK_EN) 2185 flags |= STA_CTXT_HE_ACK_ENABLED; 2186 2187 rcu_read_unlock(); 2188 2189 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2190 flags |= STA_CTXT_HE_MU_EDCA_CW; 2191 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2192 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2193 &mvmvif->queue_params[i].mu_edca_param_rec; 2194 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2195 2196 if (!mvmvif->queue_params[i].mu_edca) { 2197 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2198 break; 2199 } 2200 2201 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2202 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2203 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2204 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2205 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2206 cpu_to_le16(mu_edca->aifsn); 2207 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2208 cpu_to_le16(mu_edca->mu_edca_timer); 2209 } 2210 2211 2212 if (vif->bss_conf.uora_exists) { 2213 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2214 2215 sta_ctxt_cmd.rand_alloc_ecwmin = 2216 vif->bss_conf.uora_ocw_range & 0x7; 2217 sta_ctxt_cmd.rand_alloc_ecwmax = 2218 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2219 } 2220 2221 if (own_he_cap && !(own_he_cap->he_cap_elem.mac_cap_info[2] & 2222 IEEE80211_HE_MAC_CAP2_ACK_EN)) 2223 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2224 2225 if (vif->bss_conf.nontransmitted) { 2226 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2227 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2228 vif->bss_conf.transmitter_bssid); 2229 sta_ctxt_cmd.max_bssid_indicator = 2230 vif->bss_conf.bssid_indicator; 2231 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2232 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2233 sta_ctxt_cmd.profile_periodicity = 2234 vif->bss_conf.profile_periodicity; 2235 } 2236 2237 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2238 2239 if (ver < 3) { 2240 /* fields before pkt_ext */ 2241 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2242 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2243 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2244 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2245 2246 /* pkt_ext */ 2247 for (i = 0; 2248 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2249 i++) { 2250 u8 bw; 2251 2252 for (bw = 0; 2253 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2254 bw++) { 2255 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2256 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2257 2258 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2259 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2260 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2261 } 2262 } 2263 2264 /* fields after pkt_ext */ 2265 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2266 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2267 sizeof(sta_ctxt_cmd_v2) - 2268 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2269 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2270 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2271 (u8 *)&sta_ctxt_cmd + 2272 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2273 sizeof(sta_ctxt_cmd) - 2274 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2275 sta_ctxt_cmd_v2.reserved3 = 0; 2276 } 2277 2278 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2279 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2280 } 2281 2282 static void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, 2283 struct ieee80211_vif *vif, 2284 u32 duration_override) 2285 { 2286 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2287 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2288 2289 if (duration_override > duration) 2290 duration = duration_override; 2291 2292 /* Try really hard to protect the session and hear a beacon 2293 * The new session protection command allows us to protect the 2294 * session for a much longer time since the firmware will internally 2295 * create two events: a 300TU one with a very high priority that 2296 * won't be fragmented which should be enough for 99% of the cases, 2297 * and another one (which we configure here to be 900TU long) which 2298 * will have a slightly lower priority, but more importantly, can be 2299 * fragmented so that it'll allow other activities to run. 2300 */ 2301 if (fw_has_capa(&mvm->fw->ucode_capa, 2302 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2303 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2304 min_duration, false); 2305 else 2306 iwl_mvm_protect_session(mvm, vif, duration, 2307 min_duration, 500, false); 2308 } 2309 2310 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2311 struct ieee80211_vif *vif, 2312 struct ieee80211_bss_conf *bss_conf, 2313 u64 changes) 2314 { 2315 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2316 int ret; 2317 2318 /* 2319 * Re-calculate the tsf id, as the leader-follower relations depend 2320 * on the beacon interval, which was not known when the station 2321 * interface was added. 2322 */ 2323 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2324 if ((vif->bss_conf.he_support && 2325 !iwlwifi_mod_params.disable_11ax) || 2326 (vif->bss_conf.eht_support && 2327 !iwlwifi_mod_params.disable_11be)) 2328 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2329 2330 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2331 } 2332 2333 /* Update MU EDCA params */ 2334 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2335 vif->cfg.assoc && 2336 ((vif->bss_conf.he_support && 2337 !iwlwifi_mod_params.disable_11ax) || 2338 (vif->bss_conf.eht_support && 2339 !iwlwifi_mod_params.disable_11be))) 2340 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2341 2342 /* 2343 * If we're not associated yet, take the (new) BSSID before associating 2344 * so the firmware knows. If we're already associated, then use the old 2345 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2346 * branch for disassociation below. 2347 */ 2348 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2349 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2350 2351 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2352 if (ret) 2353 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2354 2355 /* after sending it once, adopt mac80211 data */ 2356 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2357 mvmvif->associated = vif->cfg.assoc; 2358 2359 if (changes & BSS_CHANGED_ASSOC) { 2360 if (vif->cfg.assoc) { 2361 /* clear statistics to get clean beacon counter */ 2362 iwl_mvm_request_statistics(mvm, true); 2363 memset(&mvmvif->beacon_stats, 0, 2364 sizeof(mvmvif->beacon_stats)); 2365 2366 /* add quota for this interface */ 2367 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2368 if (ret) { 2369 IWL_ERR(mvm, "failed to update quotas\n"); 2370 return; 2371 } 2372 2373 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2374 &mvm->status) && 2375 !fw_has_capa(&mvm->fw->ucode_capa, 2376 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2377 /* 2378 * If we're restarting then the firmware will 2379 * obviously have lost synchronisation with 2380 * the AP. It will attempt to synchronise by 2381 * itself, but we can make it more reliable by 2382 * scheduling a session protection time event. 2383 * 2384 * The firmware needs to receive a beacon to 2385 * catch up with synchronisation, use 110% of 2386 * the beacon interval. 2387 * 2388 * Set a large maximum delay to allow for more 2389 * than a single interface. 2390 * 2391 * For new firmware versions, rely on the 2392 * firmware. This is relevant for DCM scenarios 2393 * only anyway. 2394 */ 2395 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2396 iwl_mvm_protect_session(mvm, vif, dur, dur, 2397 5 * dur, false); 2398 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2399 &mvm->status) && 2400 !vif->bss_conf.dtim_period) { 2401 /* 2402 * If we're not restarting and still haven't 2403 * heard a beacon (dtim period unknown) then 2404 * make sure we still have enough minimum time 2405 * remaining in the time event, since the auth 2406 * might actually have taken quite a while 2407 * (especially for SAE) and so the remaining 2408 * time could be small without us having heard 2409 * a beacon yet. 2410 */ 2411 iwl_mvm_protect_assoc(mvm, vif, 0); 2412 } 2413 2414 iwl_mvm_sf_update(mvm, vif, false); 2415 iwl_mvm_power_vif_assoc(mvm, vif); 2416 if (vif->p2p) { 2417 iwl_mvm_update_smps(mvm, vif, 2418 IWL_MVM_SMPS_REQ_PROT, 2419 IEEE80211_SMPS_DYNAMIC); 2420 } 2421 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2422 iwl_mvm_mei_host_disassociated(mvm); 2423 /* 2424 * If update fails - SF might be running in associated 2425 * mode while disassociated - which is forbidden. 2426 */ 2427 ret = iwl_mvm_sf_update(mvm, vif, false); 2428 WARN_ONCE(ret && 2429 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2430 &mvm->status), 2431 "Failed to update SF upon disassociation\n"); 2432 2433 /* 2434 * If we get an assert during the connection (after the 2435 * station has been added, but before the vif is set 2436 * to associated), mac80211 will re-add the station and 2437 * then configure the vif. Since the vif is not 2438 * associated, we would remove the station here and 2439 * this would fail the recovery. 2440 */ 2441 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2442 &mvm->status)) { 2443 /* first remove remaining keys */ 2444 iwl_mvm_sec_key_remove_ap(mvm, vif); 2445 2446 /* 2447 * Remove AP station now that 2448 * the MAC is unassoc 2449 */ 2450 ret = iwl_mvm_rm_sta_id(mvm, vif, 2451 mvmvif->ap_sta_id); 2452 if (ret) 2453 IWL_ERR(mvm, 2454 "failed to remove AP station\n"); 2455 2456 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2457 } 2458 2459 /* remove quota for this interface */ 2460 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2461 if (ret) 2462 IWL_ERR(mvm, "failed to update quotas\n"); 2463 2464 /* this will take the cleared BSSID from bss_conf */ 2465 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2466 if (ret) 2467 IWL_ERR(mvm, 2468 "failed to update MAC %pM (clear after unassoc)\n", 2469 vif->addr); 2470 } 2471 2472 /* 2473 * The firmware tracks the MU-MIMO group on its own. 2474 * However, on HW restart we should restore this data. 2475 */ 2476 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2477 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2478 ret = iwl_mvm_update_mu_groups(mvm, vif); 2479 if (ret) 2480 IWL_ERR(mvm, 2481 "failed to update VHT MU_MIMO groups\n"); 2482 } 2483 2484 iwl_mvm_recalc_multicast(mvm); 2485 2486 /* reset rssi values */ 2487 mvmvif->bf_data.ave_beacon_signal = 0; 2488 2489 iwl_mvm_bt_coex_vif_change(mvm); 2490 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2491 IEEE80211_SMPS_AUTOMATIC); 2492 if (fw_has_capa(&mvm->fw->ucode_capa, 2493 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2494 iwl_mvm_config_scan(mvm); 2495 } 2496 2497 if (changes & BSS_CHANGED_BEACON_INFO) { 2498 /* 2499 * We received a beacon from the associated AP so 2500 * remove the session protection. 2501 */ 2502 iwl_mvm_stop_session_protection(mvm, vif); 2503 2504 iwl_mvm_sf_update(mvm, vif, false); 2505 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2506 } 2507 2508 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2509 /* 2510 * Send power command on every beacon change, 2511 * because we may have not enabled beacon abort yet. 2512 */ 2513 BSS_CHANGED_BEACON_INFO)) { 2514 ret = iwl_mvm_power_update_mac(mvm); 2515 if (ret) 2516 IWL_ERR(mvm, "failed to update power mode\n"); 2517 } 2518 2519 if (changes & BSS_CHANGED_CQM) { 2520 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2521 /* reset cqm events tracking */ 2522 mvmvif->bf_data.last_cqm_event = 0; 2523 if (mvmvif->bf_data.bf_enabled) { 2524 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2525 if (ret) 2526 IWL_ERR(mvm, 2527 "failed to update CQM thresholds\n"); 2528 } 2529 } 2530 2531 if (changes & BSS_CHANGED_BANDWIDTH) 2532 iwl_mvm_apply_fw_smps_request(vif); 2533 } 2534 2535 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2536 struct ieee80211_vif *vif, 2537 struct ieee80211_bss_conf *link_conf) 2538 { 2539 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2540 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2541 int ret, i; 2542 2543 mutex_lock(&mvm->mutex); 2544 2545 /* Send the beacon template */ 2546 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2547 if (ret) 2548 goto out_unlock; 2549 2550 /* 2551 * Re-calculate the tsf id, as the leader-follower relations depend on 2552 * the beacon interval, which was not known when the AP interface 2553 * was added. 2554 */ 2555 if (vif->type == NL80211_IFTYPE_AP) 2556 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2557 2558 mvmvif->ap_assoc_sta_count = 0; 2559 2560 /* Add the mac context */ 2561 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2562 if (ret) 2563 goto out_unlock; 2564 2565 /* Perform the binding */ 2566 ret = iwl_mvm_binding_add_vif(mvm, vif); 2567 if (ret) 2568 goto out_remove; 2569 2570 /* 2571 * This is not very nice, but the simplest: 2572 * For older FWs adding the mcast sta before the bcast station may 2573 * cause assert 0x2b00. 2574 * This is fixed in later FW so make the order of removal depend on 2575 * the TLV 2576 */ 2577 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2578 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2579 if (ret) 2580 goto out_unbind; 2581 /* 2582 * Send the bcast station. At this stage the TBTT and DTIM time 2583 * events are added and applied to the scheduler 2584 */ 2585 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2586 if (ret) { 2587 iwl_mvm_rm_mcast_sta(mvm, vif); 2588 goto out_unbind; 2589 } 2590 } else { 2591 /* 2592 * Send the bcast station. At this stage the TBTT and DTIM time 2593 * events are added and applied to the scheduler 2594 */ 2595 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2596 if (ret) 2597 goto out_unbind; 2598 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2599 if (ret) { 2600 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2601 goto out_unbind; 2602 } 2603 } 2604 2605 /* must be set before quota calculations */ 2606 mvmvif->ap_ibss_active = true; 2607 2608 /* send all the early keys to the device now */ 2609 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2610 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2611 2612 if (!key) 2613 continue; 2614 2615 mvmvif->ap_early_keys[i] = NULL; 2616 2617 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2618 if (ret) 2619 goto out_quota_failed; 2620 } 2621 2622 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2623 iwl_mvm_vif_set_low_latency(mvmvif, true, 2624 LOW_LATENCY_VIF_TYPE); 2625 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2626 } 2627 2628 /* power updated needs to be done before quotas */ 2629 iwl_mvm_power_update_mac(mvm); 2630 2631 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2632 if (ret) 2633 goto out_quota_failed; 2634 2635 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2636 if (vif->p2p && mvm->p2p_device_vif) 2637 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2638 2639 iwl_mvm_bt_coex_vif_change(mvm); 2640 2641 /* we don't support TDLS during DCM */ 2642 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2643 iwl_mvm_teardown_tdls_peers(mvm); 2644 2645 iwl_mvm_ftm_restart_responder(mvm, vif); 2646 2647 goto out_unlock; 2648 2649 out_quota_failed: 2650 iwl_mvm_power_update_mac(mvm); 2651 mvmvif->ap_ibss_active = false; 2652 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2653 iwl_mvm_rm_mcast_sta(mvm, vif); 2654 out_unbind: 2655 iwl_mvm_binding_remove_vif(mvm, vif); 2656 out_remove: 2657 iwl_mvm_mac_ctxt_remove(mvm, vif); 2658 out_unlock: 2659 mutex_unlock(&mvm->mutex); 2660 return ret; 2661 } 2662 2663 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2664 struct ieee80211_vif *vif, 2665 struct ieee80211_bss_conf *link_conf) 2666 { 2667 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2668 } 2669 2670 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2671 struct ieee80211_vif *vif) 2672 { 2673 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2674 } 2675 2676 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2677 struct ieee80211_vif *vif, 2678 struct ieee80211_bss_conf *link_conf) 2679 { 2680 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2681 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2682 2683 iwl_mvm_prepare_mac_removal(mvm, vif); 2684 2685 mutex_lock(&mvm->mutex); 2686 2687 /* Handle AP stop while in CSA */ 2688 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2689 iwl_mvm_remove_time_event(mvm, mvmvif, 2690 &mvmvif->time_event_data); 2691 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2692 mvmvif->csa_countdown = false; 2693 } 2694 2695 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2696 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2697 mvm->csa_tx_block_bcn_timeout = 0; 2698 } 2699 2700 mvmvif->ap_ibss_active = false; 2701 mvm->ap_last_beacon_gp2 = 0; 2702 2703 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2704 iwl_mvm_vif_set_low_latency(mvmvif, false, 2705 LOW_LATENCY_VIF_TYPE); 2706 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2707 } 2708 2709 iwl_mvm_bt_coex_vif_change(mvm); 2710 2711 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2712 if (vif->p2p && mvm->p2p_device_vif) 2713 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2714 2715 iwl_mvm_update_quotas(mvm, false, NULL); 2716 2717 iwl_mvm_ftm_responder_clear(mvm, vif); 2718 2719 /* 2720 * This is not very nice, but the simplest: 2721 * For older FWs removing the mcast sta before the bcast station may 2722 * cause assert 0x2b00. 2723 * This is fixed in later FW (which will stop beaconing when removing 2724 * bcast station). 2725 * So make the order of removal depend on the TLV 2726 */ 2727 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2728 iwl_mvm_rm_mcast_sta(mvm, vif); 2729 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2730 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2731 iwl_mvm_rm_mcast_sta(mvm, vif); 2732 iwl_mvm_binding_remove_vif(mvm, vif); 2733 2734 iwl_mvm_power_update_mac(mvm); 2735 2736 iwl_mvm_mac_ctxt_remove(mvm, vif); 2737 2738 mutex_unlock(&mvm->mutex); 2739 } 2740 2741 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 2742 struct ieee80211_vif *vif, 2743 struct ieee80211_bss_conf *link_conf) 2744 { 2745 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 2746 } 2747 2748 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 2749 struct ieee80211_vif *vif) 2750 { 2751 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 2752 } 2753 2754 static void 2755 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2756 struct ieee80211_vif *vif, 2757 struct ieee80211_bss_conf *bss_conf, 2758 u64 changes) 2759 { 2760 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2761 2762 /* Changes will be applied when the AP/IBSS is started */ 2763 if (!mvmvif->ap_ibss_active) 2764 return; 2765 2766 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2767 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2768 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2769 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2770 2771 /* Need to send a new beacon template to the FW */ 2772 if (changes & BSS_CHANGED_BEACON && 2773 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2774 IWL_WARN(mvm, "Failed updating beacon data\n"); 2775 2776 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2777 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2778 2779 if (ret) 2780 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2781 ret); 2782 } 2783 2784 } 2785 2786 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2787 struct ieee80211_vif *vif, 2788 struct ieee80211_bss_conf *bss_conf, 2789 u64 changes) 2790 { 2791 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2792 2793 mutex_lock(&mvm->mutex); 2794 2795 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 2796 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2797 2798 switch (vif->type) { 2799 case NL80211_IFTYPE_STATION: 2800 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2801 break; 2802 case NL80211_IFTYPE_AP: 2803 case NL80211_IFTYPE_ADHOC: 2804 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2805 break; 2806 case NL80211_IFTYPE_MONITOR: 2807 if (changes & BSS_CHANGED_MU_GROUPS) 2808 iwl_mvm_update_mu_groups(mvm, vif); 2809 break; 2810 default: 2811 /* shouldn't happen */ 2812 WARN_ON_ONCE(1); 2813 } 2814 2815 if (changes & BSS_CHANGED_TXPOWER) { 2816 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 2817 bss_conf->txpower); 2818 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2819 } 2820 2821 mutex_unlock(&mvm->mutex); 2822 } 2823 2824 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2825 struct ieee80211_vif *vif, 2826 struct ieee80211_scan_request *hw_req) 2827 { 2828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2829 int ret; 2830 2831 if (hw_req->req.n_channels == 0 || 2832 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2833 return -EINVAL; 2834 2835 mutex_lock(&mvm->mutex); 2836 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2837 mutex_unlock(&mvm->mutex); 2838 2839 return ret; 2840 } 2841 2842 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2843 struct ieee80211_vif *vif) 2844 { 2845 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2846 2847 mutex_lock(&mvm->mutex); 2848 2849 /* Due to a race condition, it's possible that mac80211 asks 2850 * us to stop a hw_scan when it's already stopped. This can 2851 * happen, for instance, if we stopped the scan ourselves, 2852 * called ieee80211_scan_completed() and the userspace called 2853 * cancel scan scan before ieee80211_scan_work() could run. 2854 * To handle that, simply return if the scan is not running. 2855 */ 2856 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2857 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2858 2859 mutex_unlock(&mvm->mutex); 2860 } 2861 2862 static void 2863 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2864 struct ieee80211_sta *sta, u16 tids, 2865 int num_frames, 2866 enum ieee80211_frame_release_type reason, 2867 bool more_data) 2868 { 2869 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2870 2871 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2872 2873 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2874 tids, more_data, false); 2875 } 2876 2877 static void 2878 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2879 struct ieee80211_sta *sta, u16 tids, 2880 int num_frames, 2881 enum ieee80211_frame_release_type reason, 2882 bool more_data) 2883 { 2884 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2885 2886 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2887 2888 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2889 tids, more_data, true); 2890 } 2891 2892 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2893 enum sta_notify_cmd cmd, 2894 struct ieee80211_sta *sta) 2895 { 2896 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2897 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2898 unsigned long txqs = 0, tids = 0; 2899 int tid; 2900 2901 /* 2902 * If we have TVQM then we get too high queue numbers - luckily 2903 * we really shouldn't get here with that because such hardware 2904 * should have firmware supporting buffer station offload. 2905 */ 2906 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2907 return; 2908 2909 spin_lock_bh(&mvmsta->lock); 2910 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2911 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2912 2913 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2914 continue; 2915 2916 __set_bit(tid_data->txq_id, &txqs); 2917 2918 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2919 continue; 2920 2921 __set_bit(tid, &tids); 2922 } 2923 2924 switch (cmd) { 2925 case STA_NOTIFY_SLEEP: 2926 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2927 ieee80211_sta_set_buffered(sta, tid, true); 2928 2929 if (txqs) 2930 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2931 /* 2932 * The fw updates the STA to be asleep. Tx packets on the Tx 2933 * queues to this station will not be transmitted. The fw will 2934 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2935 */ 2936 break; 2937 case STA_NOTIFY_AWAKE: 2938 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2939 break; 2940 2941 if (txqs) 2942 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2943 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2944 break; 2945 default: 2946 break; 2947 } 2948 spin_unlock_bh(&mvmsta->lock); 2949 } 2950 2951 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2952 struct ieee80211_vif *vif, 2953 enum sta_notify_cmd cmd, 2954 struct ieee80211_sta *sta) 2955 { 2956 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2957 } 2958 2959 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2960 { 2961 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2962 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2963 struct ieee80211_sta *sta; 2964 struct iwl_mvm_sta *mvmsta; 2965 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2966 2967 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 2968 return; 2969 2970 rcu_read_lock(); 2971 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2972 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2973 rcu_read_unlock(); 2974 return; 2975 } 2976 2977 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2978 2979 if (!mvmsta->vif || 2980 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2981 rcu_read_unlock(); 2982 return; 2983 } 2984 2985 if (mvmsta->sleeping != sleeping) { 2986 mvmsta->sleeping = sleeping; 2987 __iwl_mvm_mac_sta_notify(mvm->hw, 2988 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2989 sta); 2990 ieee80211_sta_ps_transition(sta, sleeping); 2991 } 2992 2993 if (sleeping) { 2994 switch (notif->type) { 2995 case IWL_MVM_PM_EVENT_AWAKE: 2996 case IWL_MVM_PM_EVENT_ASLEEP: 2997 break; 2998 case IWL_MVM_PM_EVENT_UAPSD: 2999 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3000 break; 3001 case IWL_MVM_PM_EVENT_PS_POLL: 3002 ieee80211_sta_pspoll(sta); 3003 break; 3004 default: 3005 break; 3006 } 3007 } 3008 3009 rcu_read_unlock(); 3010 } 3011 3012 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3013 struct ieee80211_vif *vif, 3014 struct ieee80211_sta *sta) 3015 { 3016 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3017 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3018 3019 /* 3020 * This is called before mac80211 does RCU synchronisation, 3021 * so here we already invalidate our internal RCU-protected 3022 * station pointer. The rest of the code will thus no longer 3023 * be able to find the station this way, and we don't rely 3024 * on further RCU synchronisation after the sta_state() 3025 * callback deleted the station. 3026 */ 3027 mutex_lock(&mvm->mutex); 3028 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 3029 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 3030 ERR_PTR(-ENOENT)); 3031 3032 mutex_unlock(&mvm->mutex); 3033 } 3034 3035 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3036 const u8 *bssid) 3037 { 3038 int i; 3039 3040 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3041 struct iwl_mvm_tcm_mac *mdata; 3042 3043 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3044 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3045 mdata->opened_rx_ba_sessions = false; 3046 } 3047 3048 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3049 return; 3050 3051 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3052 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3053 return; 3054 } 3055 3056 if (!vif->p2p && 3057 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3058 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3059 return; 3060 } 3061 3062 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3063 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3064 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3065 return; 3066 } 3067 } 3068 3069 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3070 } 3071 3072 static void 3073 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3074 struct ieee80211_vif *vif, u8 *peer_addr, 3075 enum nl80211_tdls_operation action) 3076 { 3077 struct iwl_fw_dbg_trigger_tlv *trig; 3078 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3079 3080 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3081 FW_DBG_TRIGGER_TDLS); 3082 if (!trig) 3083 return; 3084 3085 tdls_trig = (void *)trig->data; 3086 3087 if (!(tdls_trig->action_bitmap & BIT(action))) 3088 return; 3089 3090 if (tdls_trig->peer_mode && 3091 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3092 return; 3093 3094 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3095 "TDLS event occurred, peer %pM, action %d", 3096 peer_addr, action); 3097 } 3098 3099 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3100 bool tolerated; 3101 }; 3102 3103 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3104 struct cfg80211_bss *bss, 3105 void *_data) 3106 { 3107 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3108 const struct cfg80211_bss_ies *ies; 3109 const struct element *elem; 3110 3111 rcu_read_lock(); 3112 ies = rcu_dereference(bss->ies); 3113 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3114 ies->len); 3115 3116 if (!elem || elem->datalen < 10 || 3117 !(elem->data[10] & 3118 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3119 data->tolerated = false; 3120 } 3121 rcu_read_unlock(); 3122 } 3123 3124 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3125 struct ieee80211_vif *vif) 3126 { 3127 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3128 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3129 .tolerated = true, 3130 }; 3131 3132 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3133 mvmvif->he_ru_2mhz_block = false; 3134 return; 3135 } 3136 3137 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3138 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3139 &iter_data); 3140 3141 /* 3142 * If there is at least one AP on radar channel that cannot 3143 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3144 */ 3145 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3146 } 3147 3148 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3149 struct ieee80211_vif *vif) 3150 { 3151 struct ieee80211_supported_band *sband; 3152 const struct ieee80211_sta_he_cap *he_cap; 3153 3154 if (vif->type != NL80211_IFTYPE_STATION) 3155 return; 3156 3157 if (!mvm->cca_40mhz_workaround) 3158 return; 3159 3160 /* decrement and check that we reached zero */ 3161 mvm->cca_40mhz_workaround--; 3162 if (mvm->cca_40mhz_workaround) 3163 return; 3164 3165 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3166 3167 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3168 3169 he_cap = ieee80211_get_he_iftype_cap(sband, 3170 ieee80211_vif_type_p2p(vif)); 3171 3172 if (he_cap) { 3173 /* we know that ours is writable */ 3174 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3175 3176 he->he_cap_elem.phy_cap_info[0] |= 3177 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3178 } 3179 } 3180 3181 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3182 struct ieee80211_vif *vif, 3183 struct iwl_mvm_sta *mvm_sta) 3184 { 3185 #if IS_ENABLED(CONFIG_IWLMEI) 3186 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3187 struct iwl_mei_conn_info conn_info = { 3188 .ssid_len = vif->cfg.ssid_len, 3189 .channel = vif->bss_conf.chandef.chan->hw_value, 3190 }; 3191 3192 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3193 return; 3194 3195 if (!mvm->mei_registered) 3196 return; 3197 3198 switch (mvm_sta->pairwise_cipher) { 3199 case WLAN_CIPHER_SUITE_TKIP: 3200 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3201 break; 3202 case WLAN_CIPHER_SUITE_CCMP: 3203 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3204 break; 3205 case WLAN_CIPHER_SUITE_GCMP: 3206 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3207 break; 3208 case WLAN_CIPHER_SUITE_GCMP_256: 3209 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3210 break; 3211 case 0: 3212 /* open profile */ 3213 break; 3214 default: 3215 /* cipher not supported, don't send anything to iwlmei */ 3216 return; 3217 } 3218 3219 switch (mvmvif->rekey_data.akm) { 3220 case WLAN_AKM_SUITE_SAE & 0xff: 3221 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3222 break; 3223 case WLAN_AKM_SUITE_PSK & 0xff: 3224 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3225 break; 3226 case WLAN_AKM_SUITE_8021X & 0xff: 3227 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3228 break; 3229 case 0: 3230 /* open profile */ 3231 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3232 break; 3233 default: 3234 /* auth method / AKM not supported */ 3235 /* TODO: All the FT vesions of these? */ 3236 return; 3237 } 3238 3239 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3240 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3241 3242 /* TODO: add support for collocated AP data */ 3243 iwl_mei_host_associated(&conn_info, NULL); 3244 #endif 3245 } 3246 3247 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3248 struct ieee80211_vif *vif, 3249 struct ieee80211_sta *sta, 3250 enum ieee80211_sta_state old_state, 3251 enum ieee80211_sta_state new_state) 3252 { 3253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3254 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3255 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3256 int ret; 3257 3258 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3259 sta->addr, old_state, new_state); 3260 3261 /* this would be a mac80211 bug ... but don't crash */ 3262 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3263 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) ? 0 : -EINVAL; 3264 3265 /* 3266 * If we are in a STA removal flow and in DQA mode: 3267 * 3268 * This is after the sync_rcu part, so the queues have already been 3269 * flushed. No more TXs on their way in mac80211's path, and no more in 3270 * the queues. 3271 * Also, we won't be getting any new TX frames for this station. 3272 * What we might have are deferred TX frames that need to be taken care 3273 * of. 3274 * 3275 * Drop any still-queued deferred-frame before removing the STA, and 3276 * make sure the worker is no longer handling frames for this STA. 3277 */ 3278 if (old_state == IEEE80211_STA_NONE && 3279 new_state == IEEE80211_STA_NOTEXIST) { 3280 flush_work(&mvm->add_stream_wk); 3281 3282 /* 3283 * No need to make sure deferred TX indication is off since the 3284 * worker will already remove it if it was on 3285 */ 3286 3287 /* 3288 * Additionally, reset the 40 MHz capability if we disconnected 3289 * from the AP now. 3290 */ 3291 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3292 } 3293 3294 mutex_lock(&mvm->mutex); 3295 /* track whether or not the station is associated */ 3296 mvm_sta->sta_state = new_state; 3297 3298 if (old_state == IEEE80211_STA_NOTEXIST && 3299 new_state == IEEE80211_STA_NONE) { 3300 /* 3301 * Firmware bug - it'll crash if the beacon interval is less 3302 * than 16. We can't avoid connecting at all, so refuse the 3303 * station state change, this will cause mac80211 to abandon 3304 * attempts to connect to this AP, and eventually wpa_s will 3305 * blocklist the AP... 3306 */ 3307 if (vif->type == NL80211_IFTYPE_STATION && 3308 vif->bss_conf.beacon_int < 16) { 3309 IWL_ERR(mvm, 3310 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3311 sta->addr, vif->bss_conf.beacon_int); 3312 ret = -EINVAL; 3313 goto out_unlock; 3314 } 3315 3316 if (vif->type == NL80211_IFTYPE_STATION) 3317 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3318 3319 if (sta->tdls && 3320 (vif->p2p || 3321 iwl_mvm_tdls_sta_count(mvm, NULL) == 3322 IWL_MVM_TDLS_STA_COUNT || 3323 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3324 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3325 ret = -EBUSY; 3326 goto out_unlock; 3327 } 3328 3329 ret = iwl_mvm_add_sta(mvm, vif, sta); 3330 if (sta->tdls && ret == 0) { 3331 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3332 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3333 NL80211_TDLS_SETUP); 3334 } 3335 3336 sta->deflink.agg.max_rc_amsdu_len = 1; 3337 } else if (old_state == IEEE80211_STA_NONE && 3338 new_state == IEEE80211_STA_AUTH) { 3339 /* 3340 * EBS may be disabled due to previous failures reported by FW. 3341 * Reset EBS status here assuming environment has been changed. 3342 */ 3343 mvm->last_ebs_successful = true; 3344 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3345 ret = 0; 3346 } else if (old_state == IEEE80211_STA_AUTH && 3347 new_state == IEEE80211_STA_ASSOC) { 3348 if (vif->type == NL80211_IFTYPE_AP) { 3349 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3350 mvmvif->ap_assoc_sta_count++; 3351 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3352 if ((vif->bss_conf.he_support && 3353 !iwlwifi_mod_params.disable_11ax) || 3354 (vif->bss_conf.eht_support && 3355 !iwlwifi_mod_params.disable_11be)) 3356 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3357 } else if (vif->type == NL80211_IFTYPE_STATION) { 3358 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3359 3360 mvmvif->he_ru_2mhz_block = false; 3361 if (sta->deflink.he_cap.has_he) 3362 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3363 3364 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3365 } 3366 3367 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3368 false); 3369 ret = iwl_mvm_update_sta(mvm, vif, sta); 3370 } else if (old_state == IEEE80211_STA_ASSOC && 3371 new_state == IEEE80211_STA_AUTHORIZED) { 3372 ret = 0; 3373 3374 /* we don't support TDLS during DCM */ 3375 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3376 iwl_mvm_teardown_tdls_peers(mvm); 3377 3378 if (sta->tdls) { 3379 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3380 NL80211_TDLS_ENABLE_LINK); 3381 } else { 3382 /* enable beacon filtering */ 3383 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3384 3385 mvmvif->authorized = 1; 3386 3387 /* 3388 * Now that the station is authorized, i.e., keys were already 3389 * installed, need to indicate to the FW that 3390 * multicast data frames can be forwarded to the driver 3391 */ 3392 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3393 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3394 } 3395 3396 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3397 true); 3398 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3399 new_state == IEEE80211_STA_ASSOC) { 3400 /* once we move into assoc state, need to update rate scale to 3401 * disable using wide bandwidth 3402 */ 3403 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3404 false); 3405 if (!sta->tdls) { 3406 /* Multicast data frames are no longer allowed */ 3407 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3408 3409 /* 3410 * Set this after the above iwl_mvm_mac_ctxt_changed() 3411 * to avoid sending high prio again for a little time. 3412 */ 3413 mvmvif->authorized = 0; 3414 3415 /* disable beacon filtering */ 3416 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3417 WARN_ON(ret && 3418 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3419 &mvm->status)); 3420 } 3421 ret = 0; 3422 } else if (old_state == IEEE80211_STA_ASSOC && 3423 new_state == IEEE80211_STA_AUTH) { 3424 if (vif->type == NL80211_IFTYPE_AP) { 3425 mvmvif->ap_assoc_sta_count--; 3426 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3427 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3428 iwl_mvm_stop_session_protection(mvm, vif); 3429 ret = 0; 3430 } else if (old_state == IEEE80211_STA_AUTH && 3431 new_state == IEEE80211_STA_NONE) { 3432 ret = 0; 3433 } else if (old_state == IEEE80211_STA_NONE && 3434 new_state == IEEE80211_STA_NOTEXIST) { 3435 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3436 iwl_mvm_stop_session_protection(mvm, vif); 3437 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3438 if (sta->tdls) { 3439 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3440 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3441 NL80211_TDLS_DISABLE_LINK); 3442 } 3443 3444 if (unlikely(ret && 3445 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3446 &mvm->status))) 3447 ret = 0; 3448 } else { 3449 ret = -EIO; 3450 } 3451 out_unlock: 3452 mutex_unlock(&mvm->mutex); 3453 3454 if (sta->tdls && ret == 0) { 3455 if (old_state == IEEE80211_STA_NOTEXIST && 3456 new_state == IEEE80211_STA_NONE) 3457 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3458 else if (old_state == IEEE80211_STA_NONE && 3459 new_state == IEEE80211_STA_NOTEXIST) 3460 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3461 } 3462 3463 return ret; 3464 } 3465 3466 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3467 { 3468 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3469 3470 mvm->rts_threshold = value; 3471 3472 return 0; 3473 } 3474 3475 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3476 struct ieee80211_vif *vif, 3477 struct ieee80211_sta *sta, u32 changed) 3478 { 3479 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3480 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3481 3482 if (changed & (IEEE80211_RC_BW_CHANGED | 3483 IEEE80211_RC_SUPP_RATES_CHANGED | 3484 IEEE80211_RC_NSS_CHANGED)) 3485 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3486 true); 3487 3488 if (vif->type == NL80211_IFTYPE_STATION && 3489 changed & IEEE80211_RC_NSS_CHANGED) 3490 iwl_mvm_sf_update(mvm, vif, false); 3491 } 3492 3493 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3494 struct ieee80211_vif *vif, 3495 unsigned int link_id, u16 ac, 3496 const struct ieee80211_tx_queue_params *params) 3497 { 3498 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3499 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3500 3501 mvmvif->queue_params[ac] = *params; 3502 3503 /* 3504 * No need to update right away, we'll get BSS_CHANGED_QOS 3505 * The exception is P2P_DEVICE interface which needs immediate update. 3506 */ 3507 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3508 int ret; 3509 3510 mutex_lock(&mvm->mutex); 3511 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3512 mutex_unlock(&mvm->mutex); 3513 return ret; 3514 } 3515 return 0; 3516 } 3517 3518 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3519 struct ieee80211_vif *vif, 3520 struct ieee80211_prep_tx_info *info) 3521 { 3522 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3523 3524 mutex_lock(&mvm->mutex); 3525 iwl_mvm_protect_assoc(mvm, vif, info->duration); 3526 mutex_unlock(&mvm->mutex); 3527 } 3528 3529 static void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 3530 struct ieee80211_vif *vif, 3531 struct ieee80211_prep_tx_info *info) 3532 { 3533 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3534 3535 /* for successful cases (auth/assoc), don't cancel session protection */ 3536 if (info->success) 3537 return; 3538 3539 mutex_lock(&mvm->mutex); 3540 iwl_mvm_stop_session_protection(mvm, vif); 3541 mutex_unlock(&mvm->mutex); 3542 } 3543 3544 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3545 struct ieee80211_vif *vif, 3546 struct cfg80211_sched_scan_request *req, 3547 struct ieee80211_scan_ies *ies) 3548 { 3549 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3550 3551 int ret; 3552 3553 mutex_lock(&mvm->mutex); 3554 3555 if (!vif->cfg.idle) { 3556 ret = -EBUSY; 3557 goto out; 3558 } 3559 3560 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3561 3562 out: 3563 mutex_unlock(&mvm->mutex); 3564 return ret; 3565 } 3566 3567 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3568 struct ieee80211_vif *vif) 3569 { 3570 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3571 int ret; 3572 3573 mutex_lock(&mvm->mutex); 3574 3575 /* Due to a race condition, it's possible that mac80211 asks 3576 * us to stop a sched_scan when it's already stopped. This 3577 * can happen, for instance, if we stopped the scan ourselves, 3578 * called ieee80211_sched_scan_stopped() and the userspace called 3579 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3580 * could run. To handle this, simply return if the scan is 3581 * not running. 3582 */ 3583 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3584 mutex_unlock(&mvm->mutex); 3585 return 0; 3586 } 3587 3588 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3589 mutex_unlock(&mvm->mutex); 3590 iwl_mvm_wait_for_async_handlers(mvm); 3591 3592 return ret; 3593 } 3594 3595 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3596 enum set_key_cmd cmd, 3597 struct ieee80211_vif *vif, 3598 struct ieee80211_sta *sta, 3599 struct ieee80211_key_conf *key) 3600 { 3601 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3602 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3603 struct iwl_mvm_sta *mvmsta = NULL; 3604 struct iwl_mvm_key_pn *ptk_pn; 3605 int keyidx = key->keyidx; 3606 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 3607 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 3608 int ret, i; 3609 u8 key_offset; 3610 3611 if (sta) 3612 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3613 3614 switch (key->cipher) { 3615 case WLAN_CIPHER_SUITE_TKIP: 3616 if (!mvm->trans->trans_cfg->gen2) { 3617 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3618 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3619 } else if (vif->type == NL80211_IFTYPE_STATION) { 3620 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3621 } else { 3622 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3623 return -EOPNOTSUPP; 3624 } 3625 break; 3626 case WLAN_CIPHER_SUITE_CCMP: 3627 case WLAN_CIPHER_SUITE_GCMP: 3628 case WLAN_CIPHER_SUITE_GCMP_256: 3629 if (!iwl_mvm_has_new_tx_api(mvm)) 3630 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3631 break; 3632 case WLAN_CIPHER_SUITE_AES_CMAC: 3633 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3634 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3635 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3636 break; 3637 case WLAN_CIPHER_SUITE_WEP40: 3638 case WLAN_CIPHER_SUITE_WEP104: 3639 if (vif->type == NL80211_IFTYPE_STATION) 3640 break; 3641 if (iwl_mvm_has_new_tx_api(mvm)) 3642 return -EOPNOTSUPP; 3643 /* support HW crypto on TX */ 3644 return 0; 3645 default: 3646 return -EOPNOTSUPP; 3647 } 3648 3649 switch (cmd) { 3650 case SET_KEY: 3651 if (keyidx == 6 || keyidx == 7) 3652 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 3653 key); 3654 3655 if ((vif->type == NL80211_IFTYPE_ADHOC || 3656 vif->type == NL80211_IFTYPE_AP) && !sta) { 3657 /* 3658 * GTK on AP interface is a TX-only key, return 0; 3659 * on IBSS they're per-station and because we're lazy 3660 * we don't support them for RX, so do the same. 3661 * CMAC/GMAC in AP/IBSS modes must be done in software. 3662 */ 3663 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3664 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3665 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3666 ret = -EOPNOTSUPP; 3667 break; 3668 } 3669 3670 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3671 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3672 !iwl_mvm_has_new_tx_api(mvm)) { 3673 key->hw_key_idx = STA_KEY_IDX_INVALID; 3674 ret = 0; 3675 break; 3676 } 3677 3678 if (!mvmvif->ap_ibss_active) { 3679 for (i = 0; 3680 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3681 i++) { 3682 if (!mvmvif->ap_early_keys[i]) { 3683 mvmvif->ap_early_keys[i] = key; 3684 break; 3685 } 3686 } 3687 3688 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3689 ret = -ENOSPC; 3690 else 3691 ret = 0; 3692 3693 break; 3694 } 3695 } 3696 3697 /* During FW restart, in order to restore the state as it was, 3698 * don't try to reprogram keys we previously failed for. 3699 */ 3700 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3701 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3702 IWL_DEBUG_MAC80211(mvm, 3703 "skip invalid idx key programming during restart\n"); 3704 ret = 0; 3705 break; 3706 } 3707 3708 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3709 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3710 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3711 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3712 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3713 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3714 struct ieee80211_key_seq seq; 3715 int tid, q; 3716 3717 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3718 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3719 mvm->trans->num_rx_queues), 3720 GFP_KERNEL); 3721 if (!ptk_pn) { 3722 ret = -ENOMEM; 3723 break; 3724 } 3725 3726 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3727 ieee80211_get_key_rx_seq(key, tid, &seq); 3728 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3729 memcpy(ptk_pn->q[q].pn[tid], 3730 seq.ccmp.pn, 3731 IEEE80211_CCMP_PN_LEN); 3732 } 3733 3734 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3735 } 3736 3737 /* in HW restart reuse the index, otherwise request a new one */ 3738 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3739 key_offset = key->hw_key_idx; 3740 else 3741 key_offset = STA_KEY_IDX_INVALID; 3742 3743 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 3744 mvmsta->pairwise_cipher = key->cipher; 3745 3746 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3747 3748 if (sec_key_ver) 3749 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 3750 else 3751 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3752 3753 if (ret) { 3754 IWL_WARN(mvm, "set key failed\n"); 3755 key->hw_key_idx = STA_KEY_IDX_INVALID; 3756 /* 3757 * can't add key for RX, but we don't need it 3758 * in the device for TX so still return 0, 3759 * unless we have new TX API where we cannot 3760 * put key material into the TX_CMD 3761 */ 3762 if (iwl_mvm_has_new_tx_api(mvm)) 3763 ret = -EOPNOTSUPP; 3764 else 3765 ret = 0; 3766 } 3767 3768 break; 3769 case DISABLE_KEY: 3770 if (keyidx == 6 || keyidx == 7) 3771 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 3772 NULL); 3773 3774 ret = -ENOENT; 3775 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3776 if (mvmvif->ap_early_keys[i] == key) { 3777 mvmvif->ap_early_keys[i] = NULL; 3778 ret = 0; 3779 } 3780 } 3781 3782 /* found in pending list - don't do anything else */ 3783 if (ret == 0) 3784 break; 3785 3786 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3787 ret = 0; 3788 break; 3789 } 3790 3791 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3792 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3793 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3794 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3795 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3796 ptk_pn = rcu_dereference_protected( 3797 mvmsta->ptk_pn[keyidx], 3798 lockdep_is_held(&mvm->mutex)); 3799 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3800 if (ptk_pn) 3801 kfree_rcu(ptk_pn, rcu_head); 3802 } 3803 3804 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3805 if (sec_key_ver) 3806 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 3807 else 3808 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3809 break; 3810 default: 3811 ret = -EINVAL; 3812 } 3813 3814 return ret; 3815 } 3816 3817 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3818 enum set_key_cmd cmd, 3819 struct ieee80211_vif *vif, 3820 struct ieee80211_sta *sta, 3821 struct ieee80211_key_conf *key) 3822 { 3823 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3824 int ret; 3825 3826 mutex_lock(&mvm->mutex); 3827 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3828 mutex_unlock(&mvm->mutex); 3829 3830 return ret; 3831 } 3832 3833 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3834 struct ieee80211_vif *vif, 3835 struct ieee80211_key_conf *keyconf, 3836 struct ieee80211_sta *sta, 3837 u32 iv32, u16 *phase1key) 3838 { 3839 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3840 3841 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3842 return; 3843 3844 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3845 } 3846 3847 3848 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3849 struct iwl_rx_packet *pkt, void *data) 3850 { 3851 struct iwl_mvm *mvm = 3852 container_of(notif_wait, struct iwl_mvm, notif_wait); 3853 struct iwl_hs20_roc_res *resp; 3854 int resp_len = iwl_rx_packet_payload_len(pkt); 3855 struct iwl_mvm_time_event_data *te_data = data; 3856 3857 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3858 return true; 3859 3860 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3861 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3862 return true; 3863 } 3864 3865 resp = (void *)pkt->data; 3866 3867 IWL_DEBUG_TE(mvm, 3868 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3869 resp->status, resp->event_unique_id); 3870 3871 te_data->uid = le32_to_cpu(resp->event_unique_id); 3872 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3873 te_data->uid); 3874 3875 spin_lock_bh(&mvm->time_event_lock); 3876 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3877 spin_unlock_bh(&mvm->time_event_lock); 3878 3879 return true; 3880 } 3881 3882 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3883 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3884 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3885 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3886 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3887 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3888 struct ieee80211_channel *channel, 3889 struct ieee80211_vif *vif, 3890 int duration) 3891 { 3892 int res; 3893 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3894 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3895 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3896 struct iwl_notification_wait wait_time_event; 3897 u32 dtim_interval = vif->bss_conf.dtim_period * 3898 vif->bss_conf.beacon_int; 3899 u32 req_dur, delay; 3900 struct iwl_hs20_roc_req aux_roc_req = { 3901 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3902 .id_and_color = 3903 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3904 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3905 }; 3906 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3907 &aux_roc_req.channel_info); 3908 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3909 3910 /* Set the channel info data */ 3911 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3912 iwl_mvm_phy_band_from_nl80211(channel->band), 3913 IWL_PHY_CHANNEL_MODE20, 3914 0); 3915 3916 /* Set the time and duration */ 3917 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3918 3919 delay = AUX_ROC_MIN_DELAY; 3920 req_dur = MSEC_TO_TU(duration); 3921 3922 /* 3923 * If we are associated we want the delay time to be at least one 3924 * dtim interval so that the FW can wait until after the DTIM and 3925 * then start the time event, this will potentially allow us to 3926 * remain off-channel for the max duration. 3927 * Since we want to use almost a whole dtim interval we would also 3928 * like the delay to be for 2-3 dtim intervals, in case there are 3929 * other time events with higher priority. 3930 */ 3931 if (vif->cfg.assoc) { 3932 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3933 /* We cannot remain off-channel longer than the DTIM interval */ 3934 if (dtim_interval <= req_dur) { 3935 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3936 if (req_dur <= AUX_ROC_MIN_DURATION) 3937 req_dur = dtim_interval - 3938 AUX_ROC_MIN_SAFETY_BUFFER; 3939 } 3940 } 3941 3942 tail->duration = cpu_to_le32(req_dur); 3943 tail->apply_time_max_delay = cpu_to_le32(delay); 3944 3945 IWL_DEBUG_TE(mvm, 3946 "ROC: Requesting to remain on channel %u for %ums\n", 3947 channel->hw_value, req_dur); 3948 IWL_DEBUG_TE(mvm, 3949 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3950 duration, delay, dtim_interval); 3951 3952 /* Set the node address */ 3953 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3954 3955 lockdep_assert_held(&mvm->mutex); 3956 3957 spin_lock_bh(&mvm->time_event_lock); 3958 3959 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3960 spin_unlock_bh(&mvm->time_event_lock); 3961 return -EIO; 3962 } 3963 3964 te_data->vif = vif; 3965 te_data->duration = duration; 3966 te_data->id = HOT_SPOT_CMD; 3967 3968 spin_unlock_bh(&mvm->time_event_lock); 3969 3970 /* 3971 * Use a notification wait, which really just processes the 3972 * command response and doesn't wait for anything, in order 3973 * to be able to process the response and get the UID inside 3974 * the RX path. Using CMD_WANT_SKB doesn't work because it 3975 * stores the buffer and then wakes up this thread, by which 3976 * time another notification (that the time event started) 3977 * might already be processed unsuccessfully. 3978 */ 3979 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3980 time_event_response, 3981 ARRAY_SIZE(time_event_response), 3982 iwl_mvm_rx_aux_roc, te_data); 3983 3984 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3985 &aux_roc_req); 3986 3987 if (res) { 3988 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3989 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3990 goto out_clear_te; 3991 } 3992 3993 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3994 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3995 /* should never fail */ 3996 WARN_ON_ONCE(res); 3997 3998 if (res) { 3999 out_clear_te: 4000 spin_lock_bh(&mvm->time_event_lock); 4001 iwl_mvm_te_clear_data(mvm, te_data); 4002 spin_unlock_bh(&mvm->time_event_lock); 4003 } 4004 4005 return res; 4006 } 4007 4008 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4009 struct ieee80211_vif *vif, 4010 struct ieee80211_channel *channel, 4011 int duration, 4012 enum ieee80211_roc_type type) 4013 { 4014 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4015 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4016 struct cfg80211_chan_def chandef; 4017 struct iwl_mvm_phy_ctxt *phy_ctxt; 4018 bool band_change_removal; 4019 int ret, i; 4020 4021 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4022 duration, type); 4023 4024 /* 4025 * Flush the done work, just in case it's still pending, so that 4026 * the work it does can complete and we can accept new frames. 4027 */ 4028 flush_work(&mvm->roc_done_wk); 4029 4030 mutex_lock(&mvm->mutex); 4031 4032 switch (vif->type) { 4033 case NL80211_IFTYPE_STATION: 4034 if (fw_has_capa(&mvm->fw->ucode_capa, 4035 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4036 /* Use aux roc framework (HS20) */ 4037 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) { 4038 u32 lmac_id; 4039 4040 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, 4041 channel->band); 4042 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4043 if (WARN(ret, 4044 "Failed to allocate aux station")) 4045 goto out_unlock; 4046 } 4047 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4048 vif, duration); 4049 goto out_unlock; 4050 } 4051 IWL_ERR(mvm, "hotspot not supported\n"); 4052 ret = -EINVAL; 4053 goto out_unlock; 4054 case NL80211_IFTYPE_P2P_DEVICE: 4055 /* handle below */ 4056 break; 4057 default: 4058 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4059 ret = -EINVAL; 4060 goto out_unlock; 4061 } 4062 4063 for (i = 0; i < NUM_PHY_CTX; i++) { 4064 phy_ctxt = &mvm->phy_ctxts[i]; 4065 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 4066 continue; 4067 4068 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4069 /* 4070 * Unbind the P2P_DEVICE from the current PHY context, 4071 * and if the PHY context is not used remove it. 4072 */ 4073 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4074 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4075 goto out_unlock; 4076 4077 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4078 4079 /* Bind the P2P_DEVICE to the current PHY Context */ 4080 mvmvif->phy_ctxt = phy_ctxt; 4081 4082 ret = iwl_mvm_binding_add_vif(mvm, vif); 4083 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4084 goto out_unlock; 4085 4086 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4087 goto schedule_time_event; 4088 } 4089 } 4090 4091 /* Need to update the PHY context only if the ROC channel changed */ 4092 if (channel == mvmvif->phy_ctxt->channel) 4093 goto schedule_time_event; 4094 4095 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4096 4097 /* 4098 * Check if the remain-on-channel is on a different band and that 4099 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4100 * so, we'll need to release and then re-configure here, since we 4101 * must not remove a PHY context that's part of a binding. 4102 */ 4103 band_change_removal = 4104 fw_has_capa(&mvm->fw->ucode_capa, 4105 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4106 mvmvif->phy_ctxt->channel->band != chandef.chan->band; 4107 4108 if (mvmvif->phy_ctxt->ref == 1 && !band_change_removal) { 4109 /* 4110 * Change the PHY context configuration as it is currently 4111 * referenced only by the P2P Device MAC (and we can modify it) 4112 */ 4113 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 4114 &chandef, 1, 1); 4115 if (ret) 4116 goto out_unlock; 4117 } else { 4118 /* 4119 * The PHY context is shared with other MACs (or we're trying to 4120 * switch bands), so remove the P2P Device from the binding, 4121 * allocate an new PHY context and create a new binding. 4122 */ 4123 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4124 if (!phy_ctxt) { 4125 ret = -ENOSPC; 4126 goto out_unlock; 4127 } 4128 4129 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4130 1, 1); 4131 if (ret) { 4132 IWL_ERR(mvm, "Failed to change PHY context\n"); 4133 goto out_unlock; 4134 } 4135 4136 /* Unbind the P2P_DEVICE from the current PHY context */ 4137 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4138 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4139 goto out_unlock; 4140 4141 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4142 4143 /* Bind the P2P_DEVICE to the new allocated PHY context */ 4144 mvmvif->phy_ctxt = phy_ctxt; 4145 4146 ret = iwl_mvm_binding_add_vif(mvm, vif); 4147 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4148 goto out_unlock; 4149 4150 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4151 } 4152 4153 schedule_time_event: 4154 /* Schedule the time events */ 4155 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4156 4157 out_unlock: 4158 mutex_unlock(&mvm->mutex); 4159 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4160 return ret; 4161 } 4162 4163 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4164 struct ieee80211_vif *vif) 4165 { 4166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4167 4168 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4169 4170 mutex_lock(&mvm->mutex); 4171 iwl_mvm_stop_roc(mvm, vif); 4172 mutex_unlock(&mvm->mutex); 4173 4174 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4175 return 0; 4176 } 4177 4178 struct iwl_mvm_ftm_responder_iter_data { 4179 bool responder; 4180 struct ieee80211_chanctx_conf *ctx; 4181 }; 4182 4183 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4184 struct ieee80211_vif *vif) 4185 { 4186 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4187 4188 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4189 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4190 data->responder = true; 4191 } 4192 4193 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4194 struct ieee80211_chanctx_conf *ctx) 4195 { 4196 struct iwl_mvm_ftm_responder_iter_data data = { 4197 .responder = false, 4198 .ctx = ctx, 4199 }; 4200 4201 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4202 IEEE80211_IFACE_ITER_NORMAL, 4203 iwl_mvm_ftm_responder_chanctx_iter, 4204 &data); 4205 return data.responder; 4206 } 4207 4208 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4209 struct ieee80211_chanctx_conf *ctx) 4210 { 4211 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4212 struct iwl_mvm_phy_ctxt *phy_ctxt; 4213 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4214 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4215 int ret; 4216 4217 lockdep_assert_held(&mvm->mutex); 4218 4219 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4220 4221 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4222 if (!phy_ctxt) { 4223 ret = -ENOSPC; 4224 goto out; 4225 } 4226 4227 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4228 ctx->rx_chains_static, 4229 ctx->rx_chains_dynamic); 4230 if (ret) { 4231 IWL_ERR(mvm, "Failed to add PHY context\n"); 4232 goto out; 4233 } 4234 4235 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4236 *phy_ctxt_id = phy_ctxt->id; 4237 out: 4238 return ret; 4239 } 4240 4241 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4242 struct ieee80211_chanctx_conf *ctx) 4243 { 4244 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4245 int ret; 4246 4247 mutex_lock(&mvm->mutex); 4248 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4249 mutex_unlock(&mvm->mutex); 4250 4251 return ret; 4252 } 4253 4254 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4255 struct ieee80211_chanctx_conf *ctx) 4256 { 4257 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4258 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4259 4260 lockdep_assert_held(&mvm->mutex); 4261 4262 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4263 } 4264 4265 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4266 struct ieee80211_chanctx_conf *ctx) 4267 { 4268 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4269 4270 mutex_lock(&mvm->mutex); 4271 __iwl_mvm_remove_chanctx(mvm, ctx); 4272 mutex_unlock(&mvm->mutex); 4273 } 4274 4275 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4276 struct ieee80211_chanctx_conf *ctx, 4277 u32 changed) 4278 { 4279 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4280 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4281 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4282 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4283 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4284 4285 if (WARN_ONCE((phy_ctxt->ref > 1) && 4286 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4287 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4288 IEEE80211_CHANCTX_CHANGE_RADAR | 4289 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4290 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4291 phy_ctxt->ref, changed)) 4292 return; 4293 4294 mutex_lock(&mvm->mutex); 4295 4296 /* we are only changing the min_width, may be a noop */ 4297 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4298 if (phy_ctxt->width == def->width) 4299 goto out_unlock; 4300 4301 /* we are just toggling between 20_NOHT and 20 */ 4302 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4303 def->width <= NL80211_CHAN_WIDTH_20) 4304 goto out_unlock; 4305 } 4306 4307 iwl_mvm_bt_coex_vif_change(mvm); 4308 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4309 ctx->rx_chains_static, 4310 ctx->rx_chains_dynamic); 4311 4312 out_unlock: 4313 mutex_unlock(&mvm->mutex); 4314 } 4315 4316 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4317 struct ieee80211_vif *vif, 4318 struct ieee80211_chanctx_conf *ctx, 4319 bool switching_chanctx) 4320 { 4321 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4322 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4323 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4324 int ret; 4325 4326 lockdep_assert_held(&mvm->mutex); 4327 4328 mvmvif->phy_ctxt = phy_ctxt; 4329 4330 switch (vif->type) { 4331 case NL80211_IFTYPE_AP: 4332 /* only needed if we're switching chanctx (i.e. during CSA) */ 4333 if (switching_chanctx) { 4334 mvmvif->ap_ibss_active = true; 4335 break; 4336 } 4337 fallthrough; 4338 case NL80211_IFTYPE_ADHOC: 4339 /* 4340 * The AP binding flow is handled as part of the start_ap flow 4341 * (in bss_info_changed), similarly for IBSS. 4342 */ 4343 ret = 0; 4344 goto out; 4345 case NL80211_IFTYPE_STATION: 4346 mvmvif->csa_bcn_pending = false; 4347 break; 4348 case NL80211_IFTYPE_MONITOR: 4349 /* always disable PS when a monitor interface is active */ 4350 mvmvif->ps_disabled = true; 4351 break; 4352 default: 4353 ret = -EINVAL; 4354 goto out; 4355 } 4356 4357 ret = iwl_mvm_binding_add_vif(mvm, vif); 4358 if (ret) 4359 goto out; 4360 4361 /* 4362 * Power state must be updated before quotas, 4363 * otherwise fw will complain. 4364 */ 4365 iwl_mvm_power_update_mac(mvm); 4366 4367 /* Setting the quota at this stage is only required for monitor 4368 * interfaces. For the other types, the bss_info changed flow 4369 * will handle quota settings. 4370 */ 4371 if (vif->type == NL80211_IFTYPE_MONITOR) { 4372 mvmvif->monitor_active = true; 4373 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4374 if (ret) 4375 goto out_remove_binding; 4376 4377 ret = iwl_mvm_add_snif_sta(mvm, vif); 4378 if (ret) 4379 goto out_remove_binding; 4380 4381 } 4382 4383 /* Handle binding during CSA */ 4384 if (vif->type == NL80211_IFTYPE_AP) { 4385 iwl_mvm_update_quotas(mvm, false, NULL); 4386 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4387 } 4388 4389 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4390 mvmvif->csa_bcn_pending = true; 4391 4392 if (!fw_has_capa(&mvm->fw->ucode_capa, 4393 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4394 u32 duration = 3 * vif->bss_conf.beacon_int; 4395 4396 /* Protect the session to make sure we hear the first 4397 * beacon on the new channel. 4398 */ 4399 iwl_mvm_protect_session(mvm, vif, duration, duration, 4400 vif->bss_conf.beacon_int / 2, 4401 true); 4402 } 4403 4404 iwl_mvm_update_quotas(mvm, false, NULL); 4405 } 4406 4407 goto out; 4408 4409 out_remove_binding: 4410 iwl_mvm_binding_remove_vif(mvm, vif); 4411 iwl_mvm_power_update_mac(mvm); 4412 out: 4413 if (ret) 4414 mvmvif->phy_ctxt = NULL; 4415 return ret; 4416 } 4417 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4418 struct ieee80211_vif *vif, 4419 struct ieee80211_bss_conf *link_conf, 4420 struct ieee80211_chanctx_conf *ctx) 4421 { 4422 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4423 int ret; 4424 4425 mutex_lock(&mvm->mutex); 4426 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4427 mutex_unlock(&mvm->mutex); 4428 4429 return ret; 4430 } 4431 4432 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4433 struct ieee80211_vif *vif, 4434 struct ieee80211_chanctx_conf *ctx, 4435 bool switching_chanctx) 4436 { 4437 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4438 struct ieee80211_vif *disabled_vif = NULL; 4439 4440 lockdep_assert_held(&mvm->mutex); 4441 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4442 4443 switch (vif->type) { 4444 case NL80211_IFTYPE_ADHOC: 4445 goto out; 4446 case NL80211_IFTYPE_MONITOR: 4447 mvmvif->monitor_active = false; 4448 mvmvif->ps_disabled = false; 4449 iwl_mvm_rm_snif_sta(mvm, vif); 4450 break; 4451 case NL80211_IFTYPE_AP: 4452 /* This part is triggered only during CSA */ 4453 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4454 goto out; 4455 4456 mvmvif->csa_countdown = false; 4457 4458 /* Set CS bit on all the stations */ 4459 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4460 4461 /* Save blocked iface, the timeout is set on the next beacon */ 4462 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4463 4464 mvmvif->ap_ibss_active = false; 4465 break; 4466 case NL80211_IFTYPE_STATION: 4467 if (!switching_chanctx) 4468 break; 4469 4470 disabled_vif = vif; 4471 4472 if (!fw_has_capa(&mvm->fw->ucode_capa, 4473 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4474 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4475 break; 4476 default: 4477 break; 4478 } 4479 4480 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4481 iwl_mvm_binding_remove_vif(mvm, vif); 4482 4483 out: 4484 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 4485 switching_chanctx) 4486 return; 4487 mvmvif->phy_ctxt = NULL; 4488 iwl_mvm_power_update_mac(mvm); 4489 } 4490 4491 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4492 struct ieee80211_vif *vif, 4493 struct ieee80211_bss_conf *link_conf, 4494 struct ieee80211_chanctx_conf *ctx) 4495 { 4496 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4497 4498 mutex_lock(&mvm->mutex); 4499 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4500 mutex_unlock(&mvm->mutex); 4501 } 4502 4503 static int 4504 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4505 struct ieee80211_vif_chanctx_switch *vifs) 4506 { 4507 int ret; 4508 4509 mutex_lock(&mvm->mutex); 4510 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4511 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4512 4513 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4514 if (ret) { 4515 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4516 goto out_reassign; 4517 } 4518 4519 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4520 true); 4521 if (ret) { 4522 IWL_ERR(mvm, 4523 "failed to assign new_ctx during channel switch\n"); 4524 goto out_remove; 4525 } 4526 4527 /* we don't support TDLS during DCM - can be caused by channel switch */ 4528 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4529 iwl_mvm_teardown_tdls_peers(mvm); 4530 4531 goto out; 4532 4533 out_remove: 4534 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4535 4536 out_reassign: 4537 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4538 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4539 goto out_restart; 4540 } 4541 4542 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4543 true)) { 4544 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4545 goto out_restart; 4546 } 4547 4548 goto out; 4549 4550 out_restart: 4551 /* things keep failing, better restart the hw */ 4552 iwl_mvm_nic_restart(mvm, false); 4553 4554 out: 4555 mutex_unlock(&mvm->mutex); 4556 4557 return ret; 4558 } 4559 4560 static int 4561 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4562 struct ieee80211_vif_chanctx_switch *vifs) 4563 { 4564 int ret; 4565 4566 mutex_lock(&mvm->mutex); 4567 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4568 4569 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4570 true); 4571 if (ret) { 4572 IWL_ERR(mvm, 4573 "failed to assign new_ctx during channel switch\n"); 4574 goto out_reassign; 4575 } 4576 4577 goto out; 4578 4579 out_reassign: 4580 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4581 true)) { 4582 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4583 goto out_restart; 4584 } 4585 4586 goto out; 4587 4588 out_restart: 4589 /* things keep failing, better restart the hw */ 4590 iwl_mvm_nic_restart(mvm, false); 4591 4592 out: 4593 mutex_unlock(&mvm->mutex); 4594 4595 return ret; 4596 } 4597 4598 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4599 struct ieee80211_vif_chanctx_switch *vifs, 4600 int n_vifs, 4601 enum ieee80211_chanctx_switch_mode mode) 4602 { 4603 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4604 int ret; 4605 4606 /* we only support a single-vif right now */ 4607 if (n_vifs > 1) 4608 return -EOPNOTSUPP; 4609 4610 switch (mode) { 4611 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4612 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4613 break; 4614 case CHANCTX_SWMODE_REASSIGN_VIF: 4615 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4616 break; 4617 default: 4618 ret = -EOPNOTSUPP; 4619 break; 4620 } 4621 4622 return ret; 4623 } 4624 4625 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4626 { 4627 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4628 4629 return mvm->ibss_manager; 4630 } 4631 4632 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4633 struct ieee80211_sta *sta, 4634 bool set) 4635 { 4636 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4637 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4638 4639 if (!mvm_sta || !mvm_sta->vif) { 4640 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4641 return -EINVAL; 4642 } 4643 4644 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4645 } 4646 4647 #ifdef CONFIG_NL80211_TESTMODE 4648 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4649 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4650 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4651 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4652 }; 4653 4654 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4655 struct ieee80211_vif *vif, 4656 void *data, int len) 4657 { 4658 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4659 int err; 4660 u32 noa_duration; 4661 4662 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4663 iwl_mvm_tm_policy, NULL); 4664 if (err) 4665 return err; 4666 4667 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4668 return -EINVAL; 4669 4670 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4671 case IWL_MVM_TM_CMD_SET_NOA: 4672 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4673 !vif->bss_conf.enable_beacon || 4674 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4675 return -EINVAL; 4676 4677 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4678 if (noa_duration >= vif->bss_conf.beacon_int) 4679 return -EINVAL; 4680 4681 mvm->noa_duration = noa_duration; 4682 mvm->noa_vif = vif; 4683 4684 return iwl_mvm_update_quotas(mvm, true, NULL); 4685 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4686 /* must be associated client vif - ignore authorized */ 4687 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4688 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 4689 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4690 return -EINVAL; 4691 4692 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4693 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4694 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4695 } 4696 4697 return -EOPNOTSUPP; 4698 } 4699 4700 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4701 struct ieee80211_vif *vif, 4702 void *data, int len) 4703 { 4704 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4705 int err; 4706 4707 mutex_lock(&mvm->mutex); 4708 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4709 mutex_unlock(&mvm->mutex); 4710 4711 return err; 4712 } 4713 #endif 4714 4715 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4716 struct ieee80211_vif *vif, 4717 struct ieee80211_channel_switch *chsw) 4718 { 4719 /* By implementing this operation, we prevent mac80211 from 4720 * starting its own channel switch timer, so that we can call 4721 * ieee80211_chswitch_done() ourselves at the right time 4722 * (which is when the absence time event starts). 4723 */ 4724 4725 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4726 "dummy channel switch op\n"); 4727 } 4728 4729 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4730 struct ieee80211_vif *vif, 4731 struct ieee80211_channel_switch *chsw) 4732 { 4733 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4734 struct iwl_chan_switch_te_cmd cmd = { 4735 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4736 mvmvif->color)), 4737 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4738 .tsf = cpu_to_le32(chsw->timestamp), 4739 .cs_count = chsw->count, 4740 .cs_mode = chsw->block_tx, 4741 }; 4742 4743 lockdep_assert_held(&mvm->mutex); 4744 4745 if (chsw->delay) 4746 cmd.cs_delayed_bcn_count = 4747 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4748 4749 return iwl_mvm_send_cmd_pdu(mvm, 4750 WIDE_ID(MAC_CONF_GROUP, 4751 CHANNEL_SWITCH_TIME_EVENT_CMD), 4752 0, sizeof(cmd), &cmd); 4753 } 4754 4755 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4756 struct ieee80211_vif *vif, 4757 struct ieee80211_channel_switch *chsw) 4758 { 4759 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4760 u32 apply_time; 4761 4762 /* Schedule the time event to a bit before beacon 1, 4763 * to make sure we're in the new channel when the 4764 * GO/AP arrives. In case count <= 1 immediately schedule the 4765 * TE (this might result with some packet loss or connection 4766 * loss). 4767 */ 4768 if (chsw->count <= 1) 4769 apply_time = 0; 4770 else 4771 apply_time = chsw->device_timestamp + 4772 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4773 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4774 4775 if (chsw->block_tx) 4776 iwl_mvm_csa_client_absent(mvm, vif); 4777 4778 if (mvmvif->bf_data.bf_enabled) { 4779 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4780 4781 if (ret) 4782 return ret; 4783 } 4784 4785 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4786 apply_time); 4787 4788 return 0; 4789 } 4790 4791 #define IWL_MAX_CSA_BLOCK_TX 1500 4792 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4793 struct ieee80211_vif *vif, 4794 struct ieee80211_channel_switch *chsw) 4795 { 4796 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4797 struct ieee80211_vif *csa_vif; 4798 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4799 int ret; 4800 4801 mutex_lock(&mvm->mutex); 4802 4803 mvmvif->csa_failed = false; 4804 4805 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4806 chsw->chandef.center_freq1); 4807 4808 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4809 ieee80211_vif_to_wdev(vif), 4810 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4811 4812 switch (vif->type) { 4813 case NL80211_IFTYPE_AP: 4814 csa_vif = 4815 rcu_dereference_protected(mvm->csa_vif, 4816 lockdep_is_held(&mvm->mutex)); 4817 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 4818 "Another CSA is already in progress")) { 4819 ret = -EBUSY; 4820 goto out_unlock; 4821 } 4822 4823 /* we still didn't unblock tx. prevent new CS meanwhile */ 4824 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4825 lockdep_is_held(&mvm->mutex))) { 4826 ret = -EBUSY; 4827 goto out_unlock; 4828 } 4829 4830 rcu_assign_pointer(mvm->csa_vif, vif); 4831 4832 if (WARN_ONCE(mvmvif->csa_countdown, 4833 "Previous CSA countdown didn't complete")) { 4834 ret = -EBUSY; 4835 goto out_unlock; 4836 } 4837 4838 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4839 4840 break; 4841 case NL80211_IFTYPE_STATION: 4842 /* 4843 * In the new flow FW is in charge of timing the switch so there 4844 * is no need for all of this 4845 */ 4846 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4847 CHANNEL_SWITCH_ERROR_NOTIF, 4848 0)) 4849 break; 4850 4851 /* 4852 * We haven't configured the firmware to be associated yet since 4853 * we don't know the dtim period. In this case, the firmware can't 4854 * track the beacons. 4855 */ 4856 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 4857 ret = -EBUSY; 4858 goto out_unlock; 4859 } 4860 4861 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 4862 schedule_delayed_work(&mvmvif->csa_work, 0); 4863 4864 if (chsw->block_tx) { 4865 /* 4866 * In case of undetermined / long time with immediate 4867 * quiet monitor status to gracefully disconnect 4868 */ 4869 if (!chsw->count || 4870 chsw->count * vif->bss_conf.beacon_int > 4871 IWL_MAX_CSA_BLOCK_TX) 4872 schedule_delayed_work(&mvmvif->csa_work, 4873 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4874 } 4875 4876 if (!fw_has_capa(&mvm->fw->ucode_capa, 4877 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4878 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4879 if (ret) 4880 goto out_unlock; 4881 } else { 4882 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4883 } 4884 4885 mvmvif->csa_count = chsw->count; 4886 mvmvif->csa_misbehave = false; 4887 break; 4888 default: 4889 break; 4890 } 4891 4892 mvmvif->ps_disabled = true; 4893 4894 ret = iwl_mvm_power_update_ps(mvm); 4895 if (ret) 4896 goto out_unlock; 4897 4898 /* we won't be on this channel any longer */ 4899 iwl_mvm_teardown_tdls_peers(mvm); 4900 4901 out_unlock: 4902 mutex_unlock(&mvm->mutex); 4903 4904 return ret; 4905 } 4906 4907 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4908 struct ieee80211_vif *vif, 4909 struct ieee80211_channel_switch *chsw) 4910 { 4911 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4912 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4913 struct iwl_chan_switch_te_cmd cmd = { 4914 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4915 mvmvif->color)), 4916 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4917 .tsf = cpu_to_le32(chsw->timestamp), 4918 .cs_count = chsw->count, 4919 .cs_mode = chsw->block_tx, 4920 }; 4921 4922 /* 4923 * In the new flow FW is in charge of timing the switch so there is no 4924 * need for all of this 4925 */ 4926 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4927 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 4928 return; 4929 4930 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4931 return; 4932 4933 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 4934 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 4935 4936 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4937 if (mvmvif->csa_misbehave) { 4938 /* Second time, give up on this AP*/ 4939 iwl_mvm_abort_channel_switch(hw, vif); 4940 ieee80211_chswitch_done(vif, false); 4941 mvmvif->csa_misbehave = false; 4942 return; 4943 } 4944 mvmvif->csa_misbehave = true; 4945 } 4946 mvmvif->csa_count = chsw->count; 4947 4948 mutex_lock(&mvm->mutex); 4949 if (mvmvif->csa_failed) 4950 goto out_unlock; 4951 4952 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4953 WIDE_ID(MAC_CONF_GROUP, 4954 CHANNEL_SWITCH_TIME_EVENT_CMD), 4955 0, sizeof(cmd), &cmd)); 4956 out_unlock: 4957 mutex_unlock(&mvm->mutex); 4958 } 4959 4960 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4961 { 4962 int i; 4963 4964 if (!iwl_mvm_has_new_tx_api(mvm)) { 4965 if (drop) { 4966 mutex_lock(&mvm->mutex); 4967 iwl_mvm_flush_tx_path(mvm, 4968 iwl_mvm_flushable_queues(mvm) & queues); 4969 mutex_unlock(&mvm->mutex); 4970 } else { 4971 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4972 } 4973 return; 4974 } 4975 4976 mutex_lock(&mvm->mutex); 4977 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4978 struct ieee80211_sta *sta; 4979 4980 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4981 lockdep_is_held(&mvm->mutex)); 4982 if (IS_ERR_OR_NULL(sta)) 4983 continue; 4984 4985 if (drop) 4986 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 4987 else 4988 iwl_mvm_wait_sta_queues_empty(mvm, 4989 iwl_mvm_sta_from_mac80211(sta)); 4990 } 4991 mutex_unlock(&mvm->mutex); 4992 } 4993 4994 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4995 struct ieee80211_vif *vif, u32 queues, bool drop) 4996 { 4997 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4998 struct iwl_mvm_vif *mvmvif; 4999 struct iwl_mvm_sta *mvmsta; 5000 struct ieee80211_sta *sta; 5001 int i; 5002 u32 msk = 0; 5003 5004 if (!vif) { 5005 iwl_mvm_flush_no_vif(mvm, queues, drop); 5006 return; 5007 } 5008 5009 if (vif->type != NL80211_IFTYPE_STATION) 5010 return; 5011 5012 /* Make sure we're done with the deferred traffic before flushing */ 5013 flush_work(&mvm->add_stream_wk); 5014 5015 mutex_lock(&mvm->mutex); 5016 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5017 5018 /* flush the AP-station and all TDLS peers */ 5019 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5020 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5021 lockdep_is_held(&mvm->mutex)); 5022 if (IS_ERR_OR_NULL(sta)) 5023 continue; 5024 5025 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5026 if (mvmsta->vif != vif) 5027 continue; 5028 5029 /* make sure only TDLS peers or the AP are flushed */ 5030 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 5031 5032 if (drop) { 5033 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5034 IWL_ERR(mvm, "flush request fail\n"); 5035 } else { 5036 msk |= mvmsta->tfd_queue_msk; 5037 if (iwl_mvm_has_new_tx_api(mvm)) 5038 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5039 } 5040 } 5041 5042 mutex_unlock(&mvm->mutex); 5043 5044 /* this can take a while, and we may need/want other operations 5045 * to succeed while doing this, so do it without the mutex held 5046 */ 5047 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5048 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5049 } 5050 5051 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5052 struct survey_info *survey) 5053 { 5054 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5055 int ret; 5056 5057 memset(survey, 0, sizeof(*survey)); 5058 5059 /* only support global statistics right now */ 5060 if (idx != 0) 5061 return -ENOENT; 5062 5063 if (!fw_has_capa(&mvm->fw->ucode_capa, 5064 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5065 return -ENOENT; 5066 5067 mutex_lock(&mvm->mutex); 5068 5069 if (iwl_mvm_firmware_running(mvm)) { 5070 ret = iwl_mvm_request_statistics(mvm, false); 5071 if (ret) 5072 goto out; 5073 } 5074 5075 survey->filled = SURVEY_INFO_TIME | 5076 SURVEY_INFO_TIME_RX | 5077 SURVEY_INFO_TIME_TX | 5078 SURVEY_INFO_TIME_SCAN; 5079 survey->time = mvm->accu_radio_stats.on_time_rf + 5080 mvm->radio_stats.on_time_rf; 5081 do_div(survey->time, USEC_PER_MSEC); 5082 5083 survey->time_rx = mvm->accu_radio_stats.rx_time + 5084 mvm->radio_stats.rx_time; 5085 do_div(survey->time_rx, USEC_PER_MSEC); 5086 5087 survey->time_tx = mvm->accu_radio_stats.tx_time + 5088 mvm->radio_stats.tx_time; 5089 do_div(survey->time_tx, USEC_PER_MSEC); 5090 5091 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5092 mvm->radio_stats.on_time_scan; 5093 do_div(survey->time_scan, USEC_PER_MSEC); 5094 5095 ret = 0; 5096 out: 5097 mutex_unlock(&mvm->mutex); 5098 return ret; 5099 } 5100 5101 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5102 { 5103 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5104 u32 gi_ltf; 5105 5106 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5107 case RATE_MCS_CHAN_WIDTH_20: 5108 rinfo->bw = RATE_INFO_BW_20; 5109 break; 5110 case RATE_MCS_CHAN_WIDTH_40: 5111 rinfo->bw = RATE_INFO_BW_40; 5112 break; 5113 case RATE_MCS_CHAN_WIDTH_80: 5114 rinfo->bw = RATE_INFO_BW_80; 5115 break; 5116 case RATE_MCS_CHAN_WIDTH_160: 5117 rinfo->bw = RATE_INFO_BW_160; 5118 break; 5119 case RATE_MCS_CHAN_WIDTH_320: 5120 rinfo->bw = RATE_INFO_BW_320; 5121 break; 5122 } 5123 5124 if (format == RATE_MCS_CCK_MSK || 5125 format == RATE_MCS_LEGACY_OFDM_MSK) { 5126 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5127 5128 /* add the offset needed to get to the legacy ofdm indices */ 5129 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5130 rate += IWL_FIRST_OFDM_RATE; 5131 5132 switch (rate) { 5133 case IWL_RATE_1M_INDEX: 5134 rinfo->legacy = 10; 5135 break; 5136 case IWL_RATE_2M_INDEX: 5137 rinfo->legacy = 20; 5138 break; 5139 case IWL_RATE_5M_INDEX: 5140 rinfo->legacy = 55; 5141 break; 5142 case IWL_RATE_11M_INDEX: 5143 rinfo->legacy = 110; 5144 break; 5145 case IWL_RATE_6M_INDEX: 5146 rinfo->legacy = 60; 5147 break; 5148 case IWL_RATE_9M_INDEX: 5149 rinfo->legacy = 90; 5150 break; 5151 case IWL_RATE_12M_INDEX: 5152 rinfo->legacy = 120; 5153 break; 5154 case IWL_RATE_18M_INDEX: 5155 rinfo->legacy = 180; 5156 break; 5157 case IWL_RATE_24M_INDEX: 5158 rinfo->legacy = 240; 5159 break; 5160 case IWL_RATE_36M_INDEX: 5161 rinfo->legacy = 360; 5162 break; 5163 case IWL_RATE_48M_INDEX: 5164 rinfo->legacy = 480; 5165 break; 5166 case IWL_RATE_54M_INDEX: 5167 rinfo->legacy = 540; 5168 } 5169 return; 5170 } 5171 5172 rinfo->nss = u32_get_bits(rate_n_flags, 5173 RATE_MCS_NSS_MSK) + 1; 5174 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5175 RATE_HT_MCS_INDEX(rate_n_flags) : 5176 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5177 5178 if (rate_n_flags & RATE_MCS_SGI_MSK) 5179 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5180 5181 switch (format) { 5182 case RATE_MCS_EHT_MSK: 5183 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5184 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5185 break; 5186 case RATE_MCS_HE_MSK: 5187 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5188 5189 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5190 5191 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5192 rinfo->bw = RATE_INFO_BW_HE_RU; 5193 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5194 } 5195 5196 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5197 case RATE_MCS_HE_TYPE_SU: 5198 case RATE_MCS_HE_TYPE_EXT_SU: 5199 if (gi_ltf == 0 || gi_ltf == 1) 5200 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5201 else if (gi_ltf == 2) 5202 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5203 else if (gi_ltf == 3) 5204 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5205 else 5206 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5207 break; 5208 case RATE_MCS_HE_TYPE_MU: 5209 if (gi_ltf == 0 || gi_ltf == 1) 5210 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5211 else if (gi_ltf == 2) 5212 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5213 else 5214 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5215 break; 5216 case RATE_MCS_HE_TYPE_TRIG: 5217 if (gi_ltf == 0 || gi_ltf == 1) 5218 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5219 else 5220 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5221 break; 5222 } 5223 5224 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5225 rinfo->he_dcm = 1; 5226 break; 5227 case RATE_MCS_HT_MSK: 5228 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5229 break; 5230 case RATE_MCS_VHT_MSK: 5231 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5232 break; 5233 } 5234 } 5235 5236 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5237 struct ieee80211_vif *vif, 5238 struct ieee80211_sta *sta, 5239 struct station_info *sinfo) 5240 { 5241 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5242 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5243 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5244 5245 if (mvmsta->avg_energy) { 5246 sinfo->signal_avg = -(s8)mvmsta->avg_energy; 5247 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5248 } 5249 5250 if (iwl_mvm_has_tlc_offload(mvm)) { 5251 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 5252 5253 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5254 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5255 } 5256 5257 /* if beacon filtering isn't on mac80211 does it anyway */ 5258 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5259 return; 5260 5261 if (!vif->cfg.assoc) 5262 return; 5263 5264 mutex_lock(&mvm->mutex); 5265 5266 if (mvmvif->ap_sta_id != mvmsta->sta_id) 5267 goto unlock; 5268 5269 if (iwl_mvm_request_statistics(mvm, false)) 5270 goto unlock; 5271 5272 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 5273 mvmvif->beacon_stats.accu_num_beacons; 5274 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5275 if (mvmvif->beacon_stats.avg_signal) { 5276 /* firmware only reports a value after RXing a few beacons */ 5277 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 5278 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5279 } 5280 unlock: 5281 mutex_unlock(&mvm->mutex); 5282 } 5283 5284 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5285 struct ieee80211_vif *vif, 5286 const struct ieee80211_mlme_event *mlme) 5287 { 5288 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5289 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5290 iwl_dbg_tlv_time_point(&mvm->fwrt, 5291 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5292 NULL); 5293 return; 5294 } 5295 5296 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5297 iwl_dbg_tlv_time_point(&mvm->fwrt, 5298 IWL_FW_INI_TIME_POINT_DEASSOC, 5299 NULL); 5300 return; 5301 } 5302 } 5303 5304 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5305 struct ieee80211_vif *vif, 5306 const struct ieee80211_event *event) 5307 { 5308 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5309 do { \ 5310 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5311 break; \ 5312 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5313 } while (0) 5314 5315 struct iwl_fw_dbg_trigger_tlv *trig; 5316 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5317 5318 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5319 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5320 return; 5321 } 5322 5323 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5324 FW_DBG_TRIGGER_MLME); 5325 if (!trig) 5326 return; 5327 5328 trig_mlme = (void *)trig->data; 5329 5330 if (event->u.mlme.data == ASSOC_EVENT) { 5331 if (event->u.mlme.status == MLME_DENIED) 5332 CHECK_MLME_TRIGGER(stop_assoc_denied, 5333 "DENIED ASSOC: reason %d", 5334 event->u.mlme.reason); 5335 else if (event->u.mlme.status == MLME_TIMEOUT) 5336 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5337 "ASSOC TIMEOUT"); 5338 } else if (event->u.mlme.data == AUTH_EVENT) { 5339 if (event->u.mlme.status == MLME_DENIED) 5340 CHECK_MLME_TRIGGER(stop_auth_denied, 5341 "DENIED AUTH: reason %d", 5342 event->u.mlme.reason); 5343 else if (event->u.mlme.status == MLME_TIMEOUT) 5344 CHECK_MLME_TRIGGER(stop_auth_timeout, 5345 "AUTH TIMEOUT"); 5346 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5347 CHECK_MLME_TRIGGER(stop_rx_deauth, 5348 "DEAUTH RX %d", event->u.mlme.reason); 5349 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5350 CHECK_MLME_TRIGGER(stop_tx_deauth, 5351 "DEAUTH TX %d", event->u.mlme.reason); 5352 } 5353 #undef CHECK_MLME_TRIGGER 5354 } 5355 5356 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5357 struct ieee80211_vif *vif, 5358 const struct ieee80211_event *event) 5359 { 5360 struct iwl_fw_dbg_trigger_tlv *trig; 5361 struct iwl_fw_dbg_trigger_ba *ba_trig; 5362 5363 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5364 FW_DBG_TRIGGER_BA); 5365 if (!trig) 5366 return; 5367 5368 ba_trig = (void *)trig->data; 5369 5370 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5371 return; 5372 5373 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5374 "BAR received from %pM, tid %d, ssn %d", 5375 event->u.ba.sta->addr, event->u.ba.tid, 5376 event->u.ba.ssn); 5377 } 5378 5379 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5380 struct ieee80211_vif *vif, 5381 const struct ieee80211_event *event) 5382 { 5383 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5384 5385 switch (event->type) { 5386 case MLME_EVENT: 5387 iwl_mvm_event_mlme_callback(mvm, vif, event); 5388 break; 5389 case BAR_RX_EVENT: 5390 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5391 break; 5392 case BA_FRAME_TIMEOUT: 5393 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5394 event->u.ba.tid); 5395 break; 5396 default: 5397 break; 5398 } 5399 } 5400 5401 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5402 enum iwl_mvm_rxq_notif_type type, 5403 bool sync, 5404 const void *data, u32 size) 5405 { 5406 struct { 5407 struct iwl_rxq_sync_cmd cmd; 5408 struct iwl_mvm_internal_rxq_notif notif; 5409 } __packed cmd = { 5410 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 5411 .cmd.count = 5412 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 5413 size), 5414 .notif.type = type, 5415 .notif.sync = sync, 5416 }; 5417 struct iwl_host_cmd hcmd = { 5418 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 5419 .data[0] = &cmd, 5420 .len[0] = sizeof(cmd), 5421 .data[1] = data, 5422 .len[1] = size, 5423 .flags = sync ? 0 : CMD_ASYNC, 5424 }; 5425 int ret; 5426 5427 /* size must be a multiple of DWORD */ 5428 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 5429 return; 5430 5431 if (!iwl_mvm_has_new_rx_api(mvm)) 5432 return; 5433 5434 if (sync) { 5435 cmd.notif.cookie = mvm->queue_sync_cookie; 5436 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 5437 } 5438 5439 ret = iwl_mvm_send_cmd(mvm, &hcmd); 5440 if (ret) { 5441 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5442 goto out; 5443 } 5444 5445 if (sync) { 5446 lockdep_assert_held(&mvm->mutex); 5447 ret = wait_event_timeout(mvm->rx_sync_waitq, 5448 READ_ONCE(mvm->queue_sync_state) == 0 || 5449 iwl_mvm_is_radio_killed(mvm), 5450 HZ); 5451 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 5452 "queue sync: failed to sync, state is 0x%lx\n", 5453 mvm->queue_sync_state); 5454 } 5455 5456 out: 5457 if (sync) { 5458 mvm->queue_sync_state = 0; 5459 mvm->queue_sync_cookie++; 5460 } 5461 } 5462 5463 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5464 { 5465 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5466 5467 mutex_lock(&mvm->mutex); 5468 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 5469 mutex_unlock(&mvm->mutex); 5470 } 5471 5472 static int 5473 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5474 struct ieee80211_vif *vif, 5475 struct cfg80211_ftm_responder_stats *stats) 5476 { 5477 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5478 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5479 5480 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5481 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5482 return -EINVAL; 5483 5484 mutex_lock(&mvm->mutex); 5485 *stats = mvm->ftm_resp_stats; 5486 mutex_unlock(&mvm->mutex); 5487 5488 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5489 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5490 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5491 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5492 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5493 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5494 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5495 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5496 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5497 5498 return 0; 5499 } 5500 5501 static int iwl_mvm_start_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 int ret; 5507 5508 mutex_lock(&mvm->mutex); 5509 ret = iwl_mvm_ftm_start(mvm, vif, request); 5510 mutex_unlock(&mvm->mutex); 5511 5512 return ret; 5513 } 5514 5515 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5516 struct ieee80211_vif *vif, 5517 struct cfg80211_pmsr_request *request) 5518 { 5519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5520 5521 mutex_lock(&mvm->mutex); 5522 iwl_mvm_ftm_abort(mvm, request); 5523 mutex_unlock(&mvm->mutex); 5524 } 5525 5526 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5527 { 5528 u8 protocol = ip_hdr(skb)->protocol; 5529 5530 if (!IS_ENABLED(CONFIG_INET)) 5531 return false; 5532 5533 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5534 } 5535 5536 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5537 struct sk_buff *head, 5538 struct sk_buff *skb) 5539 { 5540 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5541 5542 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 5543 return iwl_mvm_tx_csum_bz(mvm, head, true) == 5544 iwl_mvm_tx_csum_bz(mvm, skb, true); 5545 5546 /* For now don't aggregate IPv6 in AMSDU */ 5547 if (skb->protocol != htons(ETH_P_IP)) 5548 return false; 5549 5550 if (!iwl_mvm_is_csum_supported(mvm)) 5551 return true; 5552 5553 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5554 } 5555 5556 const struct ieee80211_ops iwl_mvm_hw_ops = { 5557 .tx = iwl_mvm_mac_tx, 5558 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5559 .ampdu_action = iwl_mvm_mac_ampdu_action, 5560 .get_antenna = iwl_mvm_op_get_antenna, 5561 .start = iwl_mvm_mac_start, 5562 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5563 .stop = iwl_mvm_mac_stop, 5564 .add_interface = iwl_mvm_mac_add_interface, 5565 .remove_interface = iwl_mvm_mac_remove_interface, 5566 .config = iwl_mvm_mac_config, 5567 .prepare_multicast = iwl_mvm_prepare_multicast, 5568 .configure_filter = iwl_mvm_configure_filter, 5569 .config_iface_filter = iwl_mvm_config_iface_filter, 5570 .bss_info_changed = iwl_mvm_bss_info_changed, 5571 .hw_scan = iwl_mvm_mac_hw_scan, 5572 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5573 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5574 .sta_state = iwl_mvm_mac_sta_state, 5575 .sta_notify = iwl_mvm_mac_sta_notify, 5576 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5577 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5578 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5579 .sta_rc_update = iwl_mvm_sta_rc_update, 5580 .conf_tx = iwl_mvm_mac_conf_tx, 5581 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5582 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 5583 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5584 .flush = iwl_mvm_mac_flush, 5585 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5586 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5587 .set_key = iwl_mvm_mac_set_key, 5588 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5589 .remain_on_channel = iwl_mvm_roc, 5590 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5591 .add_chanctx = iwl_mvm_add_chanctx, 5592 .remove_chanctx = iwl_mvm_remove_chanctx, 5593 .change_chanctx = iwl_mvm_change_chanctx, 5594 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5595 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5596 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5597 5598 .start_ap = iwl_mvm_start_ap, 5599 .stop_ap = iwl_mvm_stop_ap, 5600 .join_ibss = iwl_mvm_start_ibss, 5601 .leave_ibss = iwl_mvm_stop_ibss, 5602 5603 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5604 5605 .set_tim = iwl_mvm_set_tim, 5606 5607 .channel_switch = iwl_mvm_channel_switch, 5608 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5609 .post_channel_switch = iwl_mvm_post_channel_switch, 5610 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5611 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5612 5613 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5614 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5615 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5616 5617 .event_callback = iwl_mvm_mac_event_callback, 5618 5619 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5620 5621 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5622 5623 #ifdef CONFIG_PM_SLEEP 5624 /* look at d3.c */ 5625 .suspend = iwl_mvm_suspend, 5626 .resume = iwl_mvm_resume, 5627 .set_wakeup = iwl_mvm_set_wakeup, 5628 .set_rekey_data = iwl_mvm_set_rekey_data, 5629 #if IS_ENABLED(CONFIG_IPV6) 5630 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5631 #endif 5632 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5633 #endif 5634 .get_survey = iwl_mvm_mac_get_survey, 5635 .sta_statistics = iwl_mvm_mac_sta_statistics, 5636 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5637 .start_pmsr = iwl_mvm_start_pmsr, 5638 .abort_pmsr = iwl_mvm_abort_pmsr, 5639 5640 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5641 #ifdef CONFIG_IWLWIFI_DEBUGFS 5642 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5643 #endif 5644 }; 5645