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sys/contrib/dev/iwlwifi/mvm/mac80211.c
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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 #if defined(__FreeBSD__) 16 #include <linux/math64.h> 17 #endif 18 #include <net/mac80211.h> 19 #include <net/ieee80211_radiotap.h> 20 #include <net/tcp.h> 21 #if defined(__FreeBSD__) 22 #include <linux/udp.h> 23 #endif 24 25 #include "iwl-drv.h" 26 #include "iwl-op-mode.h" 27 #include "iwl-io.h" 28 #include "mvm.h" 29 #include "sta.h" 30 #include "time-event.h" 31 #include "iwl-eeprom-parse.h" 32 #include "iwl-phy-db.h" 33 #ifdef CONFIG_NL80211_TESTMODE 34 #include "testmode.h" 35 #endif 36 #include "fw/error-dump.h" 37 #include "iwl-prph.h" 38 #include "iwl-nvm-parse.h" 39 40 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 41 { 42 .max = 1, 43 .types = BIT(NL80211_IFTYPE_STATION), 44 }, 45 { 46 .max = 1, 47 .types = BIT(NL80211_IFTYPE_AP) | 48 BIT(NL80211_IFTYPE_P2P_CLIENT) | 49 BIT(NL80211_IFTYPE_P2P_GO), 50 }, 51 { 52 .max = 1, 53 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 54 }, 55 }; 56 57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 58 { 59 .num_different_channels = 2, 60 .max_interfaces = 3, 61 .limits = iwl_mvm_limits, 62 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 63 }, 64 }; 65 66 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 67 .max_peers = IWL_MVM_TOF_MAX_APS, 68 .report_ap_tsf = 1, 69 .randomize_mac_addr = 1, 70 71 .ftm = { 72 .supported = 1, 73 .asap = 1, 74 .non_asap = 1, 75 .request_lci = 1, 76 .request_civicloc = 1, 77 .trigger_based = 1, 78 .non_trigger_based = 1, 79 .max_bursts_exponent = -1, /* all supported */ 80 .max_ftms_per_burst = 0, /* no limits */ 81 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 82 BIT(NL80211_CHAN_WIDTH_20) | 83 BIT(NL80211_CHAN_WIDTH_40) | 84 BIT(NL80211_CHAN_WIDTH_80) | 85 BIT(NL80211_CHAN_WIDTH_160), 86 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 87 BIT(NL80211_PREAMBLE_HT) | 88 BIT(NL80211_PREAMBLE_VHT) | 89 BIT(NL80211_PREAMBLE_HE), 90 }, 91 }; 92 93 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 94 enum set_key_cmd cmd, 95 struct ieee80211_vif *vif, 96 struct ieee80211_sta *sta, 97 struct ieee80211_key_conf *key); 98 99 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 100 { 101 int i; 102 103 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 104 for (i = 0; i < NUM_PHY_CTX; i++) { 105 mvm->phy_ctxts[i].id = i; 106 mvm->phy_ctxts[i].ref = 0; 107 } 108 } 109 110 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 111 const char *alpha2, 112 enum iwl_mcc_source src_id, 113 bool *changed) 114 { 115 struct ieee80211_regdomain *regd = NULL; 116 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 117 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 118 struct iwl_mcc_update_resp *resp; 119 u8 resp_ver; 120 121 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 122 123 lockdep_assert_held(&mvm->mutex); 124 125 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 126 if (IS_ERR_OR_NULL(resp)) { 127 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 128 PTR_ERR_OR_ZERO(resp)); 129 resp = NULL; 130 goto out; 131 } 132 133 if (changed) { 134 u32 status = le32_to_cpu(resp->status); 135 136 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 137 status == MCC_RESP_ILLEGAL); 138 } 139 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 140 MCC_UPDATE_CMD, 0); 141 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 142 143 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 144 __le32_to_cpu(resp->n_channels), 145 resp->channels, 146 __le16_to_cpu(resp->mcc), 147 __le16_to_cpu(resp->geo_info), 148 __le16_to_cpu(resp->cap), resp_ver); 149 /* Store the return source id */ 150 src_id = resp->source_id; 151 if (IS_ERR_OR_NULL(regd)) { 152 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 153 PTR_ERR_OR_ZERO(regd)); 154 goto out; 155 } 156 157 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 158 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 159 mvm->lar_regdom_set = true; 160 mvm->mcc_src = src_id; 161 162 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 163 164 out: 165 kfree(resp); 166 return regd; 167 } 168 169 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 170 { 171 bool changed; 172 struct ieee80211_regdomain *regd; 173 174 if (!iwl_mvm_is_lar_supported(mvm)) 175 return; 176 177 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 178 if (!IS_ERR_OR_NULL(regd)) { 179 /* only update the regulatory core if changed */ 180 if (changed) 181 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 182 183 kfree(regd); 184 } 185 } 186 187 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 188 bool *changed) 189 { 190 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 191 iwl_mvm_is_wifi_mcc_supported(mvm) ? 192 MCC_SOURCE_GET_CURRENT : 193 MCC_SOURCE_OLD_FW, changed); 194 } 195 196 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 197 { 198 enum iwl_mcc_source used_src; 199 struct ieee80211_regdomain *regd; 200 int ret; 201 bool changed; 202 const struct ieee80211_regdomain *r = 203 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 204 205 if (!r) 206 return -ENOENT; 207 208 /* save the last source in case we overwrite it below */ 209 used_src = mvm->mcc_src; 210 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 211 /* Notify the firmware we support wifi location updates */ 212 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 213 if (!IS_ERR_OR_NULL(regd)) 214 kfree(regd); 215 } 216 217 /* Now set our last stored MCC and source */ 218 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 219 &changed); 220 if (IS_ERR_OR_NULL(regd)) 221 return -EIO; 222 223 /* update cfg80211 if the regdomain was changed */ 224 if (changed) 225 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 226 else 227 ret = 0; 228 229 kfree(regd); 230 return ret; 231 } 232 233 static const u8 he_if_types_ext_capa_sta[] = { 234 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 235 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 236 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 237 }; 238 239 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 240 { 241 .iftype = NL80211_IFTYPE_STATION, 242 .extended_capabilities = he_if_types_ext_capa_sta, 243 .extended_capabilities_mask = he_if_types_ext_capa_sta, 244 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 245 }, 246 }; 247 248 static int 249 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 250 { 251 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 252 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 253 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 254 return 0; 255 } 256 257 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 258 { 259 struct ieee80211_hw *hw = mvm->hw; 260 int num_mac, ret, i; 261 static const u32 mvm_ciphers[] = { 262 WLAN_CIPHER_SUITE_WEP40, 263 WLAN_CIPHER_SUITE_WEP104, 264 WLAN_CIPHER_SUITE_TKIP, 265 WLAN_CIPHER_SUITE_CCMP, 266 }; 267 #ifdef CONFIG_PM_SLEEP 268 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 269 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 270 #endif 271 272 /* Tell mac80211 our characteristics */ 273 ieee80211_hw_set(hw, SIGNAL_DBM); 274 ieee80211_hw_set(hw, SPECTRUM_MGMT); 275 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 276 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 277 ieee80211_hw_set(hw, SUPPORTS_PS); 278 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 279 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 280 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 281 ieee80211_hw_set(hw, CONNECTION_MONITOR); 282 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 283 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 284 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 285 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 286 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 287 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 288 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 289 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 290 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 291 /* 292 * On older devices, enabling TX A-MSDU occasionally leads to 293 * something getting messed up, the command read from the FIFO 294 * gets out of sync and isn't a TX command, so that we have an 295 * assert EDC. 296 * 297 * It's not clear where the bug is, but since we didn't used to 298 * support A-MSDU until moving the mac80211 iTXQs, just leave it 299 * for older devices. We also don't see this issue on any newer 300 * devices. 301 */ 302 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 303 ieee80211_hw_set(hw, TX_AMSDU); 304 ieee80211_hw_set(hw, TX_FRAG_LIST); 305 306 if (iwl_mvm_has_tlc_offload(mvm)) { 307 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 308 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 309 } 310 311 if (iwl_mvm_has_new_rx_api(mvm)) 312 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 313 314 if (fw_has_capa(&mvm->fw->ucode_capa, 315 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 316 ieee80211_hw_set(hw, AP_LINK_PS); 317 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 318 /* 319 * we absolutely need this for the new TX API since that comes 320 * with many more queues than the current code can deal with 321 * for station powersave 322 */ 323 return -EINVAL; 324 } 325 326 if (mvm->trans->num_rx_queues > 1) 327 ieee80211_hw_set(hw, USES_RSS); 328 329 if (mvm->trans->max_skb_frags) 330 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 331 332 hw->queues = IEEE80211_NUM_ACS; 333 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 334 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 335 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 336 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 337 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 338 339 hw->radiotap_timestamp.units_pos = 340 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 341 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 342 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 343 hw->radiotap_timestamp.accuracy = 22; 344 345 if (!iwl_mvm_has_tlc_offload(mvm)) 346 hw->rate_control_algorithm = RS_NAME; 347 348 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 349 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 350 hw->max_tx_fragments = mvm->trans->max_skb_frags; 351 352 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 353 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 354 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 355 hw->wiphy->cipher_suites = mvm->ciphers; 356 357 if (iwl_mvm_has_new_rx_api(mvm)) { 358 mvm->ciphers[hw->wiphy->n_cipher_suites] = 359 WLAN_CIPHER_SUITE_GCMP; 360 hw->wiphy->n_cipher_suites++; 361 mvm->ciphers[hw->wiphy->n_cipher_suites] = 362 WLAN_CIPHER_SUITE_GCMP_256; 363 hw->wiphy->n_cipher_suites++; 364 } 365 366 if (iwlwifi_mod_params.swcrypto) 367 IWL_ERR(mvm, 368 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 369 if (!iwlwifi_mod_params.bt_coex_active) 370 IWL_ERR(mvm, 371 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 372 373 ieee80211_hw_set(hw, MFP_CAPABLE); 374 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 375 hw->wiphy->n_cipher_suites++; 376 if (iwl_mvm_has_new_rx_api(mvm)) { 377 mvm->ciphers[hw->wiphy->n_cipher_suites] = 378 WLAN_CIPHER_SUITE_BIP_GMAC_128; 379 hw->wiphy->n_cipher_suites++; 380 mvm->ciphers[hw->wiphy->n_cipher_suites] = 381 WLAN_CIPHER_SUITE_BIP_GMAC_256; 382 hw->wiphy->n_cipher_suites++; 383 } 384 385 if (fw_has_capa(&mvm->fw->ucode_capa, 386 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 387 wiphy_ext_feature_set(hw->wiphy, 388 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 389 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 390 } 391 392 if (fw_has_capa(&mvm->fw->ucode_capa, 393 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 394 wiphy_ext_feature_set(hw->wiphy, 395 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 396 397 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 398 hw->wiphy->features |= 399 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 400 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 401 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 402 403 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 404 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 405 hw->chanctx_data_size = sizeof(u16); 406 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 407 408 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 409 BIT(NL80211_IFTYPE_P2P_CLIENT) | 410 BIT(NL80211_IFTYPE_AP) | 411 BIT(NL80211_IFTYPE_P2P_GO) | 412 BIT(NL80211_IFTYPE_P2P_DEVICE) | 413 BIT(NL80211_IFTYPE_ADHOC); 414 415 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 416 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 417 418 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 419 * the hw, preventing us to control which key(id) to use per MPDU. 420 * Till that's fixed we can't use Extended Key ID for the newer cards. 421 */ 422 if (!iwl_mvm_has_new_tx_api(mvm)) 423 wiphy_ext_feature_set(hw->wiphy, 424 NL80211_EXT_FEATURE_EXT_KEY_ID); 425 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 426 427 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 428 if (iwl_mvm_is_lar_supported(mvm)) 429 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 430 else 431 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 432 REGULATORY_DISABLE_BEACON_HINTS; 433 434 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 435 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 436 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 437 438 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 439 hw->wiphy->n_iface_combinations = 440 ARRAY_SIZE(iwl_mvm_iface_combinations); 441 442 hw->wiphy->max_remain_on_channel_duration = 10000; 443 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 444 445 /* Extract MAC address */ 446 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 447 hw->wiphy->addresses = mvm->addresses; 448 hw->wiphy->n_addresses = 1; 449 450 /* Extract additional MAC addresses if available */ 451 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 452 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 453 454 for (i = 1; i < num_mac; i++) { 455 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 456 ETH_ALEN); 457 mvm->addresses[i].addr[5]++; 458 hw->wiphy->n_addresses++; 459 } 460 461 iwl_mvm_reset_phy_ctxts(mvm); 462 463 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 464 465 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 466 467 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 468 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 469 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 470 471 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 472 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 473 else 474 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 475 476 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 477 hw->wiphy->bands[NL80211_BAND_2GHZ] = 478 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 479 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 480 hw->wiphy->bands[NL80211_BAND_5GHZ] = 481 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 482 483 if (fw_has_capa(&mvm->fw->ucode_capa, 484 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 485 fw_has_api(&mvm->fw->ucode_capa, 486 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 487 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 488 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 489 } 490 if (fw_has_capa(&mvm->fw->ucode_capa, 491 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 492 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 493 hw->wiphy->bands[NL80211_BAND_6GHZ] = 494 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 495 496 hw->wiphy->hw_version = mvm->trans->hw_id; 497 498 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 499 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 500 else 501 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 502 503 hw->wiphy->max_sched_scan_reqs = 1; 504 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 505 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 506 /* we create the 802.11 header and zero length SSID IE. */ 507 hw->wiphy->max_sched_scan_ie_len = 508 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 509 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 510 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 511 512 /* 513 * the firmware uses u8 for num of iterations, but 0xff is saved for 514 * infinite loop, so the maximum number of iterations is actually 254. 515 */ 516 hw->wiphy->max_sched_scan_plan_iterations = 254; 517 518 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 519 NL80211_FEATURE_LOW_PRIORITY_SCAN | 520 NL80211_FEATURE_P2P_GO_OPPPS | 521 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 522 NL80211_FEATURE_DYNAMIC_SMPS | 523 NL80211_FEATURE_STATIC_SMPS | 524 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 525 526 if (fw_has_capa(&mvm->fw->ucode_capa, 527 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 528 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 529 if (fw_has_capa(&mvm->fw->ucode_capa, 530 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 531 hw->wiphy->features |= NL80211_FEATURE_QUIET; 532 533 if (fw_has_capa(&mvm->fw->ucode_capa, 534 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 535 hw->wiphy->features |= 536 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 537 538 if (fw_has_capa(&mvm->fw->ucode_capa, 539 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 540 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 541 542 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 543 IWL_FW_CMD_VER_UNKNOWN) == 3) 544 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 545 546 if (fw_has_api(&mvm->fw->ucode_capa, 547 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 548 wiphy_ext_feature_set(hw->wiphy, 549 NL80211_EXT_FEATURE_SCAN_START_TIME); 550 wiphy_ext_feature_set(hw->wiphy, 551 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 552 } 553 554 if (iwl_mvm_is_oce_supported(mvm)) { 555 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 556 557 wiphy_ext_feature_set(hw->wiphy, 558 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 559 wiphy_ext_feature_set(hw->wiphy, 560 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 561 wiphy_ext_feature_set(hw->wiphy, 562 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 563 564 /* Old firmware also supports probe deferral and suppression */ 565 if (scan_ver < 15) 566 wiphy_ext_feature_set(hw->wiphy, 567 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 568 } 569 570 if (mvm->nvm_data->sku_cap_11ax_enable && 571 !iwlwifi_mod_params.disable_11ax) { 572 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 573 hw->wiphy->num_iftype_ext_capab = 574 ARRAY_SIZE(he_iftypes_ext_capa); 575 576 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 577 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 578 } 579 580 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 581 582 #ifdef CONFIG_PM_SLEEP 583 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 584 mvm->trans->ops->d3_suspend && 585 mvm->trans->ops->d3_resume && 586 device_can_wakeup(mvm->trans->dev)) { 587 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 588 WIPHY_WOWLAN_DISCONNECT | 589 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 590 WIPHY_WOWLAN_RFKILL_RELEASE | 591 WIPHY_WOWLAN_NET_DETECT; 592 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 593 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 594 WIPHY_WOWLAN_4WAY_HANDSHAKE; 595 596 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 597 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 598 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 599 mvm->wowlan.max_nd_match_sets = 600 iwl_umac_scan_get_max_profiles(mvm->fw); 601 hw->wiphy->wowlan = &mvm->wowlan; 602 } 603 #endif 604 605 ret = iwl_mvm_leds_init(mvm); 606 if (ret) 607 return ret; 608 609 if (fw_has_capa(&mvm->fw->ucode_capa, 610 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 611 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 612 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 613 ieee80211_hw_set(hw, TDLS_WIDER_BW); 614 } 615 616 if (fw_has_capa(&mvm->fw->ucode_capa, 617 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 618 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 619 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 620 } 621 622 hw->netdev_features |= mvm->cfg->features; 623 if (!iwl_mvm_is_csum_supported(mvm)) 624 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 625 626 if (mvm->cfg->vht_mu_mimo_supported) 627 wiphy_ext_feature_set(hw->wiphy, 628 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 629 630 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 631 wiphy_ext_feature_set(hw->wiphy, 632 NL80211_EXT_FEATURE_PROTECTED_TWT); 633 634 iwl_mvm_vendor_cmds_register(mvm); 635 636 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 637 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 638 639 ret = ieee80211_register_hw(mvm->hw); 640 if (ret) { 641 iwl_mvm_leds_exit(mvm); 642 } 643 644 return ret; 645 } 646 647 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 648 struct ieee80211_sta *sta) 649 { 650 if (likely(sta)) { 651 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 652 return; 653 } else { 654 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 655 return; 656 } 657 658 ieee80211_free_txskb(mvm->hw, skb); 659 } 660 661 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 662 struct ieee80211_tx_control *control, 663 struct sk_buff *skb) 664 { 665 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 666 struct ieee80211_sta *sta = control->sta; 667 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 668 struct ieee80211_hdr *hdr = (void *)skb->data; 669 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 670 IEEE80211_TX_CTL_TX_OFFCHAN; 671 672 if (iwl_mvm_is_radio_killed(mvm)) { 673 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 674 goto drop; 675 } 676 677 if (offchannel && 678 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 679 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 680 goto drop; 681 682 /* 683 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 684 * so we treat the others as broadcast 685 */ 686 if (ieee80211_is_mgmt(hdr->frame_control)) 687 sta = NULL; 688 689 /* If there is no sta, and it's not offchannel - send through AP */ 690 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 691 !offchannel) { 692 struct iwl_mvm_vif *mvmvif = 693 iwl_mvm_vif_from_mac80211(info->control.vif); 694 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 695 696 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 697 /* mac80211 holds rcu read lock */ 698 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 699 if (IS_ERR_OR_NULL(sta)) 700 goto drop; 701 } 702 } 703 704 iwl_mvm_tx_skb(mvm, skb, sta); 705 return; 706 drop: 707 ieee80211_free_txskb(hw, skb); 708 } 709 710 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 711 { 712 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 713 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 714 struct sk_buff *skb = NULL; 715 716 /* 717 * No need for threads to be pending here, they can leave the first 718 * taker all the work. 719 * 720 * mvmtxq->tx_request logic: 721 * 722 * If 0, no one is currently TXing, set to 1 to indicate current thread 723 * will now start TX and other threads should quit. 724 * 725 * If 1, another thread is currently TXing, set to 2 to indicate to 726 * that thread that there was another request. Since that request may 727 * have raced with the check whether the queue is empty, the TXing 728 * thread should check the queue's status one more time before leaving. 729 * This check is done in order to not leave any TX hanging in the queue 730 * until the next TX invocation (which may not even happen). 731 * 732 * If 2, another thread is currently TXing, and it will already double 733 * check the queue, so do nothing. 734 */ 735 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 736 return; 737 738 rcu_read_lock(); 739 do { 740 while (likely(!mvmtxq->stopped && 741 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 742 skb = ieee80211_tx_dequeue(hw, txq); 743 744 if (!skb) { 745 if (txq->sta) 746 IWL_DEBUG_TX(mvm, 747 "TXQ of sta %pM tid %d is now empty\n", 748 txq->sta->addr, 749 txq->tid); 750 break; 751 } 752 753 iwl_mvm_tx_skb(mvm, skb, txq->sta); 754 } 755 } while (atomic_dec_return(&mvmtxq->tx_request)); 756 rcu_read_unlock(); 757 } 758 759 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 760 struct ieee80211_txq *txq) 761 { 762 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 763 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 764 765 /* 766 * Please note that racing is handled very carefully here: 767 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 768 * deleted afterwards. 769 * This means that if: 770 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 771 * queue is allocated and we can TX. 772 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 773 * a race, should defer the frame. 774 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 775 * need to allocate the queue and defer the frame. 776 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 777 * queue is already scheduled for allocation, no need to allocate, 778 * should defer the frame. 779 */ 780 781 /* If the queue is allocated TX and return. */ 782 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 783 /* 784 * Check that list is empty to avoid a race where txq_id is 785 * already updated, but the queue allocation work wasn't 786 * finished 787 */ 788 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 789 return; 790 791 iwl_mvm_mac_itxq_xmit(hw, txq); 792 return; 793 } 794 795 /* The list is being deleted only after the queue is fully allocated. */ 796 if (!list_empty(&mvmtxq->list)) 797 return; 798 799 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 800 schedule_work(&mvm->add_stream_wk); 801 } 802 803 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 804 do { \ 805 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 806 break; \ 807 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 808 } while (0) 809 810 static void 811 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 812 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 813 enum ieee80211_ampdu_mlme_action action) 814 { 815 struct iwl_fw_dbg_trigger_tlv *trig; 816 struct iwl_fw_dbg_trigger_ba *ba_trig; 817 818 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 819 FW_DBG_TRIGGER_BA); 820 if (!trig) 821 return; 822 823 ba_trig = (void *)trig->data; 824 825 switch (action) { 826 case IEEE80211_AMPDU_TX_OPERATIONAL: { 827 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 828 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 829 830 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 831 "TX AGG START: MAC %pM tid %d ssn %d\n", 832 sta->addr, tid, tid_data->ssn); 833 break; 834 } 835 case IEEE80211_AMPDU_TX_STOP_CONT: 836 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 837 "TX AGG STOP: MAC %pM tid %d\n", 838 sta->addr, tid); 839 break; 840 case IEEE80211_AMPDU_RX_START: 841 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 842 "RX AGG START: MAC %pM tid %d ssn %d\n", 843 sta->addr, tid, rx_ba_ssn); 844 break; 845 case IEEE80211_AMPDU_RX_STOP: 846 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 847 "RX AGG STOP: MAC %pM tid %d\n", 848 sta->addr, tid); 849 break; 850 default: 851 break; 852 } 853 } 854 855 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 856 struct ieee80211_vif *vif, 857 struct ieee80211_ampdu_params *params) 858 { 859 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 860 int ret; 861 struct ieee80211_sta *sta = params->sta; 862 enum ieee80211_ampdu_mlme_action action = params->action; 863 u16 tid = params->tid; 864 u16 *ssn = ¶ms->ssn; 865 u16 buf_size = params->buf_size; 866 bool amsdu = params->amsdu; 867 u16 timeout = params->timeout; 868 869 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 870 sta->addr, tid, action); 871 872 if (!(mvm->nvm_data->sku_cap_11n_enable)) 873 return -EACCES; 874 875 mutex_lock(&mvm->mutex); 876 877 switch (action) { 878 case IEEE80211_AMPDU_RX_START: 879 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 880 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 881 struct iwl_mvm_vif *mvmvif; 882 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 883 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 884 885 mdata->opened_rx_ba_sessions = true; 886 mvmvif = iwl_mvm_vif_from_mac80211(vif); 887 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 888 } 889 if (!iwl_enable_rx_ampdu()) { 890 ret = -EINVAL; 891 break; 892 } 893 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 894 timeout); 895 break; 896 case IEEE80211_AMPDU_RX_STOP: 897 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 898 timeout); 899 break; 900 case IEEE80211_AMPDU_TX_START: 901 if (!iwl_enable_tx_ampdu()) { 902 ret = -EINVAL; 903 break; 904 } 905 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 906 break; 907 case IEEE80211_AMPDU_TX_STOP_CONT: 908 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 909 break; 910 case IEEE80211_AMPDU_TX_STOP_FLUSH: 911 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 912 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 913 break; 914 case IEEE80211_AMPDU_TX_OPERATIONAL: 915 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 916 buf_size, amsdu); 917 break; 918 default: 919 WARN_ON_ONCE(1); 920 ret = -EINVAL; 921 break; 922 } 923 924 if (!ret) { 925 u16 rx_ba_ssn = 0; 926 927 if (action == IEEE80211_AMPDU_RX_START) 928 rx_ba_ssn = *ssn; 929 930 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 931 rx_ba_ssn, action); 932 } 933 mutex_unlock(&mvm->mutex); 934 935 return ret; 936 } 937 938 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 939 struct ieee80211_vif *vif) 940 { 941 struct iwl_mvm *mvm = data; 942 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 943 944 mvmvif->uploaded = false; 945 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 946 947 spin_lock_bh(&mvm->time_event_lock); 948 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 949 spin_unlock_bh(&mvm->time_event_lock); 950 951 mvmvif->phy_ctxt = NULL; 952 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 953 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 954 } 955 956 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 957 { 958 iwl_mvm_stop_device(mvm); 959 960 mvm->cur_aid = 0; 961 962 mvm->scan_status = 0; 963 mvm->ps_disabled = false; 964 mvm->rfkill_safe_init_done = false; 965 966 /* just in case one was running */ 967 iwl_mvm_cleanup_roc_te(mvm); 968 ieee80211_remain_on_channel_expired(mvm->hw); 969 970 iwl_mvm_ftm_restart(mvm); 971 972 /* 973 * cleanup all interfaces, even inactive ones, as some might have 974 * gone down during the HW restart 975 */ 976 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 977 978 mvm->p2p_device_vif = NULL; 979 980 iwl_mvm_reset_phy_ctxts(mvm); 981 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 982 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 983 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 984 985 ieee80211_wake_queues(mvm->hw); 986 987 mvm->vif_count = 0; 988 mvm->rx_ba_sessions = 0; 989 mvm->fwrt.dump.conf = FW_DBG_INVALID; 990 mvm->monitor_on = false; 991 992 /* keep statistics ticking */ 993 iwl_mvm_accu_radio_stats(mvm); 994 } 995 996 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 997 { 998 int ret; 999 1000 lockdep_assert_held(&mvm->mutex); 1001 1002 ret = iwl_mvm_mei_get_ownership(mvm); 1003 if (ret) 1004 return ret; 1005 1006 if (mvm->mei_nvm_data) { 1007 /* We got the NIC, we can now free the MEI NVM data */ 1008 kfree(mvm->mei_nvm_data); 1009 mvm->mei_nvm_data = NULL; 1010 1011 /* 1012 * We can't free the nvm_data we allocated based on the SAP 1013 * data because we registered to cfg80211 with the channels 1014 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1015 * just in order to be able free it later. 1016 * NULLify nvm_data so that we will read the NVM from the 1017 * firmware this time. 1018 */ 1019 mvm->temp_nvm_data = mvm->nvm_data; 1020 mvm->nvm_data = NULL; 1021 } 1022 1023 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1024 /* 1025 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1026 * so later code will - from now on - see that we're doing it. 1027 */ 1028 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1029 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1030 /* Clean up some internal and mac80211 state on restart */ 1031 iwl_mvm_restart_cleanup(mvm); 1032 } 1033 ret = iwl_mvm_up(mvm); 1034 1035 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1036 NULL); 1037 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1038 NULL); 1039 1040 mvm->last_reset_or_resume_time_jiffies = jiffies; 1041 1042 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1043 /* Something went wrong - we need to finish some cleanup 1044 * that normally iwl_mvm_mac_restart_complete() below 1045 * would do. 1046 */ 1047 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1048 } 1049 1050 return ret; 1051 } 1052 1053 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1054 { 1055 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1056 int ret; 1057 int retry, max_retry = 0; 1058 1059 mutex_lock(&mvm->mutex); 1060 1061 /* we are starting the mac not in error flow, and restart is enabled */ 1062 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1063 iwlwifi_mod_params.fw_restart) { 1064 max_retry = IWL_MAX_INIT_RETRY; 1065 /* 1066 * This will prevent mac80211 recovery flows to trigger during 1067 * init failures 1068 */ 1069 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1070 } 1071 1072 for (retry = 0; retry <= max_retry; retry++) { 1073 ret = __iwl_mvm_mac_start(mvm); 1074 if (!ret) 1075 break; 1076 1077 IWL_ERR(mvm, "mac start retry %d\n", retry); 1078 } 1079 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1080 1081 mutex_unlock(&mvm->mutex); 1082 1083 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1084 1085 return ret; 1086 } 1087 1088 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1089 { 1090 int ret; 1091 1092 mutex_lock(&mvm->mutex); 1093 1094 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1095 1096 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1097 if (ret) 1098 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1099 ret); 1100 1101 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1102 1103 /* 1104 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1105 * of packets the FW sent out, so we must reconnect. 1106 */ 1107 iwl_mvm_teardown_tdls_peers(mvm); 1108 1109 mutex_unlock(&mvm->mutex); 1110 } 1111 1112 static void 1113 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1114 enum ieee80211_reconfig_type reconfig_type) 1115 { 1116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1117 1118 switch (reconfig_type) { 1119 case IEEE80211_RECONFIG_TYPE_RESTART: 1120 iwl_mvm_restart_complete(mvm); 1121 break; 1122 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1123 break; 1124 } 1125 } 1126 1127 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1128 { 1129 lockdep_assert_held(&mvm->mutex); 1130 1131 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1132 1133 /* firmware counters are obviously reset now, but we shouldn't 1134 * partially track so also clear the fw_reset_accu counters. 1135 */ 1136 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1137 1138 /* async_handlers_wk is now blocked */ 1139 1140 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) < 12) 1141 iwl_mvm_rm_aux_sta(mvm); 1142 1143 iwl_mvm_stop_device(mvm); 1144 1145 iwl_mvm_async_handlers_purge(mvm); 1146 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1147 1148 /* 1149 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1150 * hw (as restart_complete() won't be called in this case) and mac80211 1151 * won't execute the restart. 1152 * But make sure to cleanup interfaces that have gone down before/during 1153 * HW restart was requested. 1154 */ 1155 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1156 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1157 &mvm->status)) 1158 ieee80211_iterate_interfaces(mvm->hw, 0, 1159 iwl_mvm_cleanup_iterator, mvm); 1160 1161 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1162 * make sure there's nothing left there and warn if any is found. 1163 */ 1164 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1165 int i; 1166 1167 for (i = 0; i < mvm->max_scans; i++) { 1168 if (WARN_ONCE(mvm->scan_uid_status[i], 1169 "UMAC scan UID %d status was not cleaned\n", 1170 i)) 1171 mvm->scan_uid_status[i] = 0; 1172 } 1173 } 1174 } 1175 1176 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1177 { 1178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1179 1180 flush_work(&mvm->async_handlers_wk); 1181 flush_work(&mvm->add_stream_wk); 1182 1183 /* 1184 * Lock and clear the firmware running bit here already, so that 1185 * new commands coming in elsewhere, e.g. from debugfs, will not 1186 * be able to proceed. This is important here because one of those 1187 * debugfs files causes the firmware dump to be triggered, and if we 1188 * don't stop debugfs accesses before canceling that it could be 1189 * retriggered after we flush it but before we've cleared the bit. 1190 */ 1191 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1192 1193 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1194 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1195 1196 /* 1197 * The work item could be running or queued if the 1198 * ROC time event stops just as we get here. 1199 */ 1200 flush_work(&mvm->roc_done_wk); 1201 1202 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1203 1204 mutex_lock(&mvm->mutex); 1205 __iwl_mvm_mac_stop(mvm); 1206 mutex_unlock(&mvm->mutex); 1207 1208 /* 1209 * The worker might have been waiting for the mutex, let it run and 1210 * discover that its list is now empty. 1211 */ 1212 cancel_work_sync(&mvm->async_handlers_wk); 1213 } 1214 1215 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1216 { 1217 u16 i; 1218 1219 lockdep_assert_held(&mvm->mutex); 1220 1221 for (i = 0; i < NUM_PHY_CTX; i++) 1222 if (!mvm->phy_ctxts[i].ref) 1223 return &mvm->phy_ctxts[i]; 1224 1225 IWL_ERR(mvm, "No available PHY context\n"); 1226 return NULL; 1227 } 1228 1229 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1230 s16 tx_power) 1231 { 1232 u32 cmd_id = REDUCE_TX_POWER_CMD; 1233 int len; 1234 struct iwl_dev_tx_power_cmd cmd = { 1235 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1236 .common.mac_context_id = 1237 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1238 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1239 }; 1240 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1241 IWL_FW_CMD_VER_UNKNOWN); 1242 1243 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1244 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1245 1246 if (cmd_ver == 7) 1247 len = sizeof(cmd.v7); 1248 else if (cmd_ver == 6) 1249 len = sizeof(cmd.v6); 1250 else if (fw_has_api(&mvm->fw->ucode_capa, 1251 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1252 len = sizeof(cmd.v5); 1253 else if (fw_has_capa(&mvm->fw->ucode_capa, 1254 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1255 len = sizeof(cmd.v4); 1256 else 1257 len = sizeof(cmd.v3); 1258 1259 /* all structs have the same common part, add it */ 1260 len += sizeof(cmd.common); 1261 1262 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1263 } 1264 1265 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1266 struct ieee80211_vif *vif) 1267 { 1268 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1269 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1270 int ret; 1271 1272 mutex_lock(&mvm->mutex); 1273 1274 if (vif->type == NL80211_IFTYPE_STATION) { 1275 struct iwl_mvm_sta *mvmsta; 1276 1277 mvmvif->csa_bcn_pending = false; 1278 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1279 mvmvif->ap_sta_id); 1280 1281 if (WARN_ON(!mvmsta)) { 1282 ret = -EIO; 1283 goto out_unlock; 1284 } 1285 1286 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1287 1288 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1289 1290 if (!fw_has_capa(&mvm->fw->ucode_capa, 1291 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1292 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1293 if (ret) 1294 goto out_unlock; 1295 1296 iwl_mvm_stop_session_protection(mvm, vif); 1297 } 1298 } 1299 1300 mvmvif->ps_disabled = false; 1301 1302 ret = iwl_mvm_power_update_ps(mvm); 1303 1304 out_unlock: 1305 if (mvmvif->csa_failed) 1306 ret = -EIO; 1307 mutex_unlock(&mvm->mutex); 1308 1309 return ret; 1310 } 1311 1312 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1313 struct ieee80211_vif *vif) 1314 { 1315 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1316 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1317 struct iwl_chan_switch_te_cmd cmd = { 1318 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1319 mvmvif->color)), 1320 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1321 }; 1322 1323 /* 1324 * In the new flow since FW is in charge of the timing, 1325 * if driver has canceled the channel switch he will receive the 1326 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1327 */ 1328 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1329 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1330 return; 1331 1332 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1333 1334 mutex_lock(&mvm->mutex); 1335 if (!fw_has_capa(&mvm->fw->ucode_capa, 1336 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1337 iwl_mvm_remove_csa_period(mvm, vif); 1338 else 1339 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1340 WIDE_ID(MAC_CONF_GROUP, 1341 CHANNEL_SWITCH_TIME_EVENT_CMD), 1342 0, sizeof(cmd), &cmd)); 1343 mvmvif->csa_failed = true; 1344 mutex_unlock(&mvm->mutex); 1345 1346 iwl_mvm_post_channel_switch(hw, vif); 1347 } 1348 1349 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1350 { 1351 struct iwl_mvm_vif *mvmvif; 1352 struct ieee80211_vif *vif; 1353 1354 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1355 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1356 1357 /* Trigger disconnect (should clear the CSA state) */ 1358 ieee80211_chswitch_done(vif, false); 1359 } 1360 1361 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1362 struct ieee80211_vif *vif) 1363 { 1364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1365 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1366 int ret; 1367 1368 mvmvif->mvm = mvm; 1369 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1370 1371 /* 1372 * Not much to do here. The stack will not allow interface 1373 * types or combinations that we didn't advertise, so we 1374 * don't really have to check the types. 1375 */ 1376 1377 mutex_lock(&mvm->mutex); 1378 1379 /* make sure that beacon statistics don't go backwards with FW reset */ 1380 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1381 mvmvif->beacon_stats.accu_num_beacons += 1382 mvmvif->beacon_stats.num_beacons; 1383 1384 /* Allocate resources for the MAC context, and add it to the fw */ 1385 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1386 if (ret) 1387 goto out_unlock; 1388 1389 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1390 1391 /* Counting number of interfaces is needed for legacy PM */ 1392 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1393 mvm->vif_count++; 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_release; 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_release; 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_release; 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_release: 1510 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1511 mvm->vif_count--; 1512 out_unlock: 1513 mutex_unlock(&mvm->mutex); 1514 1515 return ret; 1516 } 1517 1518 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1519 struct ieee80211_vif *vif) 1520 { 1521 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1522 /* 1523 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1524 * We assume here that all the packets sent to the OFFCHANNEL 1525 * queue are sent in ROC session. 1526 */ 1527 flush_work(&mvm->roc_done_wk); 1528 } 1529 } 1530 1531 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1532 struct ieee80211_vif *vif) 1533 { 1534 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1535 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1536 struct iwl_probe_resp_data *probe_data; 1537 1538 iwl_mvm_prepare_mac_removal(mvm, vif); 1539 1540 if (!(vif->type == NL80211_IFTYPE_AP || 1541 vif->type == NL80211_IFTYPE_ADHOC)) 1542 iwl_mvm_tcm_rm_vif(mvm, vif); 1543 1544 mutex_lock(&mvm->mutex); 1545 1546 if (vif == mvm->csme_vif) { 1547 iwl_mei_set_netdev(NULL); 1548 mvm->csme_vif = NULL; 1549 } 1550 1551 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1552 lockdep_is_held(&mvm->mutex)); 1553 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1554 if (probe_data) 1555 kfree_rcu(probe_data, rcu_head); 1556 1557 if (mvm->bf_allowed_vif == mvmvif) { 1558 mvm->bf_allowed_vif = NULL; 1559 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1560 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1561 } 1562 1563 if (vif->bss_conf.ftm_responder) 1564 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1565 1566 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1567 1568 /* 1569 * For AP/GO interface, the tear down of the resources allocated to the 1570 * interface is be handled as part of the stop_ap flow. 1571 */ 1572 if (vif->type == NL80211_IFTYPE_AP || 1573 vif->type == NL80211_IFTYPE_ADHOC) { 1574 #ifdef CONFIG_NL80211_TESTMODE 1575 if (vif == mvm->noa_vif) { 1576 mvm->noa_vif = NULL; 1577 mvm->noa_duration = 0; 1578 } 1579 #endif 1580 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1581 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1582 goto out_release; 1583 } 1584 1585 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1586 mvm->p2p_device_vif = NULL; 1587 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1588 iwl_mvm_binding_remove_vif(mvm, vif); 1589 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1590 mvmvif->phy_ctxt = NULL; 1591 } 1592 1593 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1594 mvm->vif_count--; 1595 1596 iwl_mvm_power_update_mac(mvm); 1597 iwl_mvm_mac_ctxt_remove(mvm, vif); 1598 1599 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1600 1601 if (vif->type == NL80211_IFTYPE_MONITOR) 1602 mvm->monitor_on = false; 1603 1604 out_release: 1605 mutex_unlock(&mvm->mutex); 1606 } 1607 1608 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1609 { 1610 return 0; 1611 } 1612 1613 struct iwl_mvm_mc_iter_data { 1614 struct iwl_mvm *mvm; 1615 int port_id; 1616 }; 1617 1618 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1619 struct ieee80211_vif *vif) 1620 { 1621 struct iwl_mvm_mc_iter_data *data = _data; 1622 struct iwl_mvm *mvm = data->mvm; 1623 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1624 struct iwl_host_cmd hcmd = { 1625 .id = MCAST_FILTER_CMD, 1626 .flags = CMD_ASYNC, 1627 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1628 }; 1629 int ret, len; 1630 1631 /* if we don't have free ports, mcast frames will be dropped */ 1632 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1633 return; 1634 1635 if (vif->type != NL80211_IFTYPE_STATION || 1636 !vif->bss_conf.assoc) 1637 return; 1638 1639 cmd->port_id = data->port_id++; 1640 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1641 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1642 1643 hcmd.len[0] = len; 1644 hcmd.data[0] = cmd; 1645 1646 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1647 if (ret) 1648 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1649 } 1650 1651 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1652 { 1653 struct iwl_mvm_mc_iter_data iter_data = { 1654 .mvm = mvm, 1655 }; 1656 int ret; 1657 1658 lockdep_assert_held(&mvm->mutex); 1659 1660 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1661 return; 1662 1663 ieee80211_iterate_active_interfaces_atomic( 1664 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1665 iwl_mvm_mc_iface_iterator, &iter_data); 1666 1667 /* 1668 * Send a (synchronous) ech command so that we wait for the 1669 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1670 * the interface iterator. Otherwise, we might get here over 1671 * and over again (by userspace just sending a lot of these) 1672 * and the CPU can send them faster than the firmware can 1673 * process them. 1674 * Note that the CPU is still faster - but with this we'll 1675 * actually send fewer commands overall because the CPU will 1676 * not schedule the work in mac80211 as frequently if it's 1677 * still running when rescheduled (possibly multiple times). 1678 */ 1679 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1680 if (ret) 1681 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1682 } 1683 1684 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1685 struct netdev_hw_addr_list *mc_list) 1686 { 1687 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1688 struct iwl_mcast_filter_cmd *cmd; 1689 struct netdev_hw_addr *addr; 1690 int addr_count; 1691 bool pass_all; 1692 int len; 1693 1694 addr_count = netdev_hw_addr_list_count(mc_list); 1695 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1696 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1697 if (pass_all) 1698 addr_count = 0; 1699 1700 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1701 cmd = kzalloc(len, GFP_ATOMIC); 1702 if (!cmd) 1703 return 0; 1704 1705 if (pass_all) { 1706 cmd->pass_all = 1; 1707 #if defined(__linux__) 1708 return (u64)(unsigned long)cmd; 1709 #elif defined(__FreeBSD__) 1710 return (u64)(uintptr_t)cmd; 1711 #endif 1712 } 1713 1714 netdev_hw_addr_list_for_each(addr, mc_list) { 1715 #if defined(__linux__) 1716 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1717 cmd->count, addr->addr); 1718 #elif defined(__FreeBSD__) 1719 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %6D\n", 1720 cmd->count, addr->addr, ":"); 1721 #endif 1722 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1723 addr->addr, ETH_ALEN); 1724 cmd->count++; 1725 } 1726 1727 #if defined(__linux__) 1728 return (u64)(unsigned long)cmd; 1729 #elif defined(__FreeBSD__) 1730 return (u64)(uintptr_t)cmd; 1731 #endif 1732 } 1733 1734 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1735 unsigned int changed_flags, 1736 unsigned int *total_flags, 1737 u64 multicast) 1738 { 1739 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1740 #if defined(__linux__) 1741 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1742 #elif defined(__FreeBSD__) 1743 struct iwl_mcast_filter_cmd *cmd = (void *)(uintptr_t)multicast; 1744 #endif 1745 1746 mutex_lock(&mvm->mutex); 1747 1748 /* replace previous configuration */ 1749 kfree(mvm->mcast_filter_cmd); 1750 mvm->mcast_filter_cmd = cmd; 1751 1752 if (!cmd) 1753 goto out; 1754 1755 if (changed_flags & FIF_ALLMULTI) 1756 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1757 1758 if (cmd->pass_all) 1759 cmd->count = 0; 1760 1761 iwl_mvm_recalc_multicast(mvm); 1762 out: 1763 mutex_unlock(&mvm->mutex); 1764 *total_flags = 0; 1765 } 1766 1767 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1768 struct ieee80211_vif *vif, 1769 unsigned int filter_flags, 1770 unsigned int changed_flags) 1771 { 1772 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1773 1774 /* We support only filter for probe requests */ 1775 if (!(changed_flags & FIF_PROBE_REQ)) 1776 return; 1777 1778 /* Supported only for p2p client interfaces */ 1779 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1780 !vif->p2p) 1781 return; 1782 1783 mutex_lock(&mvm->mutex); 1784 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1785 mutex_unlock(&mvm->mutex); 1786 } 1787 1788 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1789 struct ieee80211_vif *vif) 1790 { 1791 struct iwl_mu_group_mgmt_cmd cmd = {}; 1792 1793 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1794 WLAN_MEMBERSHIP_LEN); 1795 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1796 WLAN_USER_POSITION_LEN); 1797 1798 return iwl_mvm_send_cmd_pdu(mvm, 1799 WIDE_ID(DATA_PATH_GROUP, 1800 UPDATE_MU_GROUPS_CMD), 1801 0, sizeof(cmd), &cmd); 1802 } 1803 1804 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1805 struct ieee80211_vif *vif) 1806 { 1807 if (vif->mu_mimo_owner) { 1808 struct iwl_mu_group_mgmt_notif *notif = _data; 1809 1810 /* 1811 * MU-MIMO Group Id action frame is little endian. We treat 1812 * the data received from firmware as if it came from the 1813 * action frame, so no conversion is needed. 1814 */ 1815 ieee80211_update_mu_groups(vif, 1816 (u8 *)¬if->membership_status, 1817 (u8 *)¬if->user_position); 1818 } 1819 } 1820 1821 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1822 struct iwl_rx_cmd_buffer *rxb) 1823 { 1824 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1825 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1826 1827 ieee80211_iterate_active_interfaces_atomic( 1828 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1829 iwl_mvm_mu_mimo_iface_iterator, notif); 1830 } 1831 1832 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1833 { 1834 u8 byte_num = ppe_pos_bit / 8; 1835 u8 bit_num = ppe_pos_bit % 8; 1836 u8 residue_bits; 1837 u8 res; 1838 1839 if (bit_num <= 5) 1840 return (ppe[byte_num] >> bit_num) & 1841 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1842 1843 /* 1844 * If bit_num > 5, we have to combine bits with next byte. 1845 * Calculate how many bits we need to take from current byte (called 1846 * here "residue_bits"), and add them to bits from next byte. 1847 */ 1848 1849 residue_bits = 8 - bit_num; 1850 1851 res = (ppe[byte_num + 1] & 1852 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1853 residue_bits; 1854 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1855 1856 return res; 1857 } 1858 1859 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1860 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1861 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit) 1862 { 1863 int i; 1864 1865 /* 1866 * FW currently supports only nss == MAX_HE_SUPP_NSS 1867 * 1868 * If nss > MAX: we can ignore values we don't support 1869 * If nss < MAX: we can set zeros in other streams 1870 */ 1871 if (nss > MAX_HE_SUPP_NSS) { 1872 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 1873 MAX_HE_SUPP_NSS); 1874 nss = MAX_HE_SUPP_NSS; 1875 } 1876 1877 for (i = 0; i < nss; i++) { 1878 u8 ru_index_tmp = ru_index_bitmap << 1; 1879 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 1880 u8 bw; 1881 1882 for (bw = 0; 1883 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1884 bw++) { 1885 ru_index_tmp >>= 1; 1886 1887 if (!(ru_index_tmp & 1)) 1888 continue; 1889 1890 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 1891 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 1892 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 1893 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 1894 1895 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 1896 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 1897 } 1898 } 1899 } 1900 1901 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 1902 struct ieee80211_sta *sta, 1903 struct iwl_he_pkt_ext_v2 *pkt_ext) 1904 { 1905 u8 nss = (sta->deflink.he_cap.ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) + 1; 1906 u8 *ppe = &sta->deflink.he_cap.ppe_thres[0]; 1907 u8 ru_index_bitmap = 1908 u8_get_bits(*ppe, 1909 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 1910 /* Starting after PPE header */ 1911 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 1912 1913 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit); 1914 } 1915 1916 static void iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 1917 u8 nominal_padding, 1918 u32 *flags) 1919 { 1920 int low_th = -1; 1921 int high_th = -1; 1922 int i; 1923 1924 switch (nominal_padding) { 1925 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US: 1926 low_th = IWL_HE_PKT_EXT_NONE; 1927 high_th = IWL_HE_PKT_EXT_NONE; 1928 break; 1929 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US: 1930 low_th = IWL_HE_PKT_EXT_BPSK; 1931 high_th = IWL_HE_PKT_EXT_NONE; 1932 break; 1933 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US: 1934 low_th = IWL_HE_PKT_EXT_NONE; 1935 high_th = IWL_HE_PKT_EXT_BPSK; 1936 break; 1937 } 1938 1939 /* Set the PPE thresholds accordingly */ 1940 if (low_th >= 0 && high_th >= 0) { 1941 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 1942 u8 bw; 1943 1944 for (bw = 0; 1945 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 1946 bw++) { 1947 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 1948 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 1949 } 1950 } 1951 1952 *flags |= STA_CTXT_HE_PACKET_EXT; 1953 } 1954 } 1955 1956 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 1957 struct ieee80211_vif *vif, u8 sta_id) 1958 { 1959 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1960 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 1961 .sta_id = sta_id, 1962 .tid_limit = IWL_MAX_TID_COUNT, 1963 .bss_color = vif->bss_conf.he_bss_color.color, 1964 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 1965 .frame_time_rts_th = 1966 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 1967 }; 1968 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 1969 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 1970 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 1971 int size; 1972 struct ieee80211_sta *sta; 1973 u32 flags; 1974 int i; 1975 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 1976 struct ieee80211_chanctx_conf *chanctx_conf; 1977 const struct ieee80211_supported_band *sband; 1978 void *cmd; 1979 1980 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 1981 ver = 1; 1982 1983 switch (ver) { 1984 case 1: 1985 /* same layout as v2 except some data at the end */ 1986 cmd = &sta_ctxt_cmd_v2; 1987 size = sizeof(struct iwl_he_sta_context_cmd_v1); 1988 break; 1989 case 2: 1990 cmd = &sta_ctxt_cmd_v2; 1991 size = sizeof(struct iwl_he_sta_context_cmd_v2); 1992 break; 1993 case 3: 1994 cmd = &sta_ctxt_cmd; 1995 size = sizeof(struct iwl_he_sta_context_cmd_v3); 1996 break; 1997 default: 1998 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 1999 return; 2000 } 2001 2002 rcu_read_lock(); 2003 2004 chanctx_conf = rcu_dereference(vif->chanctx_conf); 2005 if (WARN_ON(!chanctx_conf)) { 2006 rcu_read_unlock(); 2007 return; 2008 } 2009 2010 sband = mvm->hw->wiphy->bands[chanctx_conf->def.chan->band]; 2011 own_he_cap = ieee80211_get_he_iftype_cap(sband, 2012 ieee80211_vif_type_p2p(vif)); 2013 2014 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2015 if (IS_ERR_OR_NULL(sta)) { 2016 rcu_read_unlock(); 2017 WARN(1, "Can't find STA to configure HE\n"); 2018 return; 2019 } 2020 2021 if (!sta->deflink.he_cap.has_he) { 2022 rcu_read_unlock(); 2023 return; 2024 } 2025 2026 flags = 0; 2027 2028 /* Block 26-tone RU OFDMA transmissions */ 2029 if (mvmvif->he_ru_2mhz_block) 2030 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2031 2032 /* HTC flags */ 2033 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[0] & 2034 IEEE80211_HE_MAC_CAP0_HTC_HE) 2035 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2036 if ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] & 2037 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2038 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2039 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2040 u8 link_adap = 2041 ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2042 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2043 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] & 2044 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2045 2046 if (link_adap == 2) 2047 sta_ctxt_cmd.htc_flags |= 2048 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2049 else if (link_adap == 3) 2050 sta_ctxt_cmd.htc_flags |= 2051 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2052 } 2053 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2054 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2055 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[3] & 2056 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2057 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2058 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2059 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2060 2061 /* 2062 * Initialize the PPE thresholds to "None" (7), as described in Table 2063 * 9-262ac of 80211.ax/D3.0. 2064 */ 2065 memset(&sta_ctxt_cmd.pkt_ext, IWL_HE_PKT_EXT_NONE, 2066 sizeof(sta_ctxt_cmd.pkt_ext)); 2067 2068 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2069 if (sta->deflink.he_cap.he_cap_elem.phy_cap_info[6] & 2070 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2071 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, sta, 2072 &sta_ctxt_cmd.pkt_ext); 2073 flags |= STA_CTXT_HE_PACKET_EXT; 2074 /* PPE Thresholds doesn't exist - set the API PPE values 2075 * according to Common Nominal Packet Padding fiels. */ 2076 } else { 2077 u8 nominal_padding = 2078 u8_get_bits(sta->deflink.he_cap.he_cap_elem.phy_cap_info[9], 2079 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2080 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2081 iwl_mvm_set_pkt_ext_from_nominal_padding(&sta_ctxt_cmd.pkt_ext, 2082 nominal_padding, 2083 &flags); 2084 } 2085 2086 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2087 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2088 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2089 2090 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2091 IEEE80211_HE_MAC_CAP2_ACK_EN) 2092 flags |= STA_CTXT_HE_ACK_ENABLED; 2093 2094 rcu_read_unlock(); 2095 2096 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2097 flags |= STA_CTXT_HE_MU_EDCA_CW; 2098 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2099 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2100 &mvmvif->queue_params[i].mu_edca_param_rec; 2101 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2102 2103 if (!mvmvif->queue_params[i].mu_edca) { 2104 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2105 break; 2106 } 2107 2108 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2109 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2110 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2111 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2112 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2113 cpu_to_le16(mu_edca->aifsn); 2114 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2115 cpu_to_le16(mu_edca->mu_edca_timer); 2116 } 2117 2118 2119 if (vif->bss_conf.uora_exists) { 2120 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2121 2122 sta_ctxt_cmd.rand_alloc_ecwmin = 2123 vif->bss_conf.uora_ocw_range & 0x7; 2124 sta_ctxt_cmd.rand_alloc_ecwmax = 2125 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2126 } 2127 2128 if (own_he_cap && !(own_he_cap->he_cap_elem.mac_cap_info[2] & 2129 IEEE80211_HE_MAC_CAP2_ACK_EN)) 2130 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2131 2132 if (vif->bss_conf.nontransmitted) { 2133 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2134 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2135 vif->bss_conf.transmitter_bssid); 2136 sta_ctxt_cmd.max_bssid_indicator = 2137 vif->bss_conf.bssid_indicator; 2138 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2139 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2140 sta_ctxt_cmd.profile_periodicity = 2141 vif->bss_conf.profile_periodicity; 2142 } 2143 2144 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2145 2146 if (ver < 3) { 2147 /* fields before pkt_ext */ 2148 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2149 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2150 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2151 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2152 2153 /* pkt_ext */ 2154 for (i = 0; 2155 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2156 i++) { 2157 u8 bw; 2158 2159 for (bw = 0; 2160 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2161 bw++) { 2162 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2163 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2164 2165 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2166 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2167 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2168 } 2169 } 2170 2171 /* fields after pkt_ext */ 2172 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2173 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2174 sizeof(sta_ctxt_cmd_v2) - 2175 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2176 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2177 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2178 (u8 *)&sta_ctxt_cmd + 2179 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2180 sizeof(sta_ctxt_cmd) - 2181 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2182 sta_ctxt_cmd_v2.reserved3 = 0; 2183 } 2184 2185 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2186 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2187 } 2188 2189 static void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, 2190 struct ieee80211_vif *vif, 2191 u32 duration_override) 2192 { 2193 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2194 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2195 2196 if (duration_override > duration) 2197 duration = duration_override; 2198 2199 /* Try really hard to protect the session and hear a beacon 2200 * The new session protection command allows us to protect the 2201 * session for a much longer time since the firmware will internally 2202 * create two events: a 300TU one with a very high priority that 2203 * won't be fragmented which should be enough for 99% of the cases, 2204 * and another one (which we configure here to be 900TU long) which 2205 * will have a slightly lower priority, but more importantly, can be 2206 * fragmented so that it'll allow other activities to run. 2207 */ 2208 if (fw_has_capa(&mvm->fw->ucode_capa, 2209 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2210 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2211 min_duration, false); 2212 else 2213 iwl_mvm_protect_session(mvm, vif, duration, 2214 min_duration, 500, false); 2215 } 2216 2217 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2218 struct ieee80211_vif *vif, 2219 struct ieee80211_bss_conf *bss_conf, 2220 u64 changes) 2221 { 2222 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2223 int ret; 2224 2225 /* 2226 * Re-calculate the tsf id, as the leader-follower relations depend 2227 * on the beacon interval, which was not known when the station 2228 * interface was added. 2229 */ 2230 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2231 if (vif->bss_conf.he_support && 2232 !iwlwifi_mod_params.disable_11ax) 2233 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2234 2235 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2236 } 2237 2238 /* Update MU EDCA params */ 2239 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2240 bss_conf->assoc && vif->bss_conf.he_support && 2241 !iwlwifi_mod_params.disable_11ax) 2242 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2243 2244 /* 2245 * If we're not associated yet, take the (new) BSSID before associating 2246 * so the firmware knows. If we're already associated, then use the old 2247 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2248 * branch for disassociation below. 2249 */ 2250 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2251 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2252 2253 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2254 if (ret) 2255 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2256 2257 /* after sending it once, adopt mac80211 data */ 2258 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2259 mvmvif->associated = bss_conf->assoc; 2260 2261 if (changes & BSS_CHANGED_ASSOC) { 2262 if (bss_conf->assoc) { 2263 /* clear statistics to get clean beacon counter */ 2264 iwl_mvm_request_statistics(mvm, true); 2265 memset(&mvmvif->beacon_stats, 0, 2266 sizeof(mvmvif->beacon_stats)); 2267 2268 /* add quota for this interface */ 2269 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2270 if (ret) { 2271 IWL_ERR(mvm, "failed to update quotas\n"); 2272 return; 2273 } 2274 2275 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2276 &mvm->status) && 2277 !fw_has_capa(&mvm->fw->ucode_capa, 2278 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2279 /* 2280 * If we're restarting then the firmware will 2281 * obviously have lost synchronisation with 2282 * the AP. It will attempt to synchronise by 2283 * itself, but we can make it more reliable by 2284 * scheduling a session protection time event. 2285 * 2286 * The firmware needs to receive a beacon to 2287 * catch up with synchronisation, use 110% of 2288 * the beacon interval. 2289 * 2290 * Set a large maximum delay to allow for more 2291 * than a single interface. 2292 * 2293 * For new firmware versions, rely on the 2294 * firmware. This is relevant for DCM scenarios 2295 * only anyway. 2296 */ 2297 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2298 iwl_mvm_protect_session(mvm, vif, dur, dur, 2299 5 * dur, false); 2300 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2301 &mvm->status) && 2302 !vif->bss_conf.dtim_period) { 2303 /* 2304 * If we're not restarting and still haven't 2305 * heard a beacon (dtim period unknown) then 2306 * make sure we still have enough minimum time 2307 * remaining in the time event, since the auth 2308 * might actually have taken quite a while 2309 * (especially for SAE) and so the remaining 2310 * time could be small without us having heard 2311 * a beacon yet. 2312 */ 2313 iwl_mvm_protect_assoc(mvm, vif, 0); 2314 } 2315 2316 iwl_mvm_sf_update(mvm, vif, false); 2317 iwl_mvm_power_vif_assoc(mvm, vif); 2318 if (vif->p2p) { 2319 iwl_mvm_update_smps(mvm, vif, 2320 IWL_MVM_SMPS_REQ_PROT, 2321 IEEE80211_SMPS_DYNAMIC); 2322 } 2323 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2324 iwl_mvm_mei_host_disassociated(mvm); 2325 /* 2326 * If update fails - SF might be running in associated 2327 * mode while disassociated - which is forbidden. 2328 */ 2329 ret = iwl_mvm_sf_update(mvm, vif, false); 2330 WARN_ONCE(ret && 2331 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2332 &mvm->status), 2333 "Failed to update SF upon disassociation\n"); 2334 2335 /* 2336 * If we get an assert during the connection (after the 2337 * station has been added, but before the vif is set 2338 * to associated), mac80211 will re-add the station and 2339 * then configure the vif. Since the vif is not 2340 * associated, we would remove the station here and 2341 * this would fail the recovery. 2342 */ 2343 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2344 &mvm->status)) { 2345 /* 2346 * Remove AP station now that 2347 * the MAC is unassoc 2348 */ 2349 ret = iwl_mvm_rm_sta_id(mvm, vif, 2350 mvmvif->ap_sta_id); 2351 if (ret) 2352 IWL_ERR(mvm, 2353 "failed to remove AP station\n"); 2354 2355 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2356 } 2357 2358 /* remove quota for this interface */ 2359 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2360 if (ret) 2361 IWL_ERR(mvm, "failed to update quotas\n"); 2362 2363 /* this will take the cleared BSSID from bss_conf */ 2364 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2365 if (ret) 2366 IWL_ERR(mvm, 2367 "failed to update MAC %pM (clear after unassoc)\n", 2368 vif->addr); 2369 } 2370 2371 /* 2372 * The firmware tracks the MU-MIMO group on its own. 2373 * However, on HW restart we should restore this data. 2374 */ 2375 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2376 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2377 ret = iwl_mvm_update_mu_groups(mvm, vif); 2378 if (ret) 2379 IWL_ERR(mvm, 2380 "failed to update VHT MU_MIMO groups\n"); 2381 } 2382 2383 iwl_mvm_recalc_multicast(mvm); 2384 2385 /* reset rssi values */ 2386 mvmvif->bf_data.ave_beacon_signal = 0; 2387 2388 iwl_mvm_bt_coex_vif_change(mvm); 2389 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2390 IEEE80211_SMPS_AUTOMATIC); 2391 if (fw_has_capa(&mvm->fw->ucode_capa, 2392 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2393 iwl_mvm_config_scan(mvm); 2394 } 2395 2396 if (changes & BSS_CHANGED_BEACON_INFO) { 2397 /* 2398 * We received a beacon from the associated AP so 2399 * remove the session protection. 2400 */ 2401 iwl_mvm_stop_session_protection(mvm, vif); 2402 2403 iwl_mvm_sf_update(mvm, vif, false); 2404 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2405 } 2406 2407 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2408 /* 2409 * Send power command on every beacon change, 2410 * because we may have not enabled beacon abort yet. 2411 */ 2412 BSS_CHANGED_BEACON_INFO)) { 2413 ret = iwl_mvm_power_update_mac(mvm); 2414 if (ret) 2415 IWL_ERR(mvm, "failed to update power mode\n"); 2416 } 2417 2418 if (changes & BSS_CHANGED_CQM) { 2419 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2420 /* reset cqm events tracking */ 2421 mvmvif->bf_data.last_cqm_event = 0; 2422 if (mvmvif->bf_data.bf_enabled) { 2423 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2424 if (ret) 2425 IWL_ERR(mvm, 2426 "failed to update CQM thresholds\n"); 2427 } 2428 } 2429 2430 if (changes & BSS_CHANGED_BANDWIDTH) 2431 iwl_mvm_apply_fw_smps_request(vif); 2432 } 2433 2434 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2435 struct ieee80211_vif *vif, 2436 struct ieee80211_bss_conf *link_conf) 2437 { 2438 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2439 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2440 int ret, i; 2441 2442 mutex_lock(&mvm->mutex); 2443 2444 /* Send the beacon template */ 2445 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2446 if (ret) 2447 goto out_unlock; 2448 2449 /* 2450 * Re-calculate the tsf id, as the leader-follower relations depend on 2451 * the beacon interval, which was not known when the AP interface 2452 * was added. 2453 */ 2454 if (vif->type == NL80211_IFTYPE_AP) 2455 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2456 2457 mvmvif->ap_assoc_sta_count = 0; 2458 2459 /* Add the mac context */ 2460 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2461 if (ret) 2462 goto out_unlock; 2463 2464 /* Perform the binding */ 2465 ret = iwl_mvm_binding_add_vif(mvm, vif); 2466 if (ret) 2467 goto out_remove; 2468 2469 /* 2470 * This is not very nice, but the simplest: 2471 * For older FWs adding the mcast sta before the bcast station may 2472 * cause assert 0x2b00. 2473 * This is fixed in later FW so make the order of removal depend on 2474 * the TLV 2475 */ 2476 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2477 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2478 if (ret) 2479 goto out_unbind; 2480 /* 2481 * Send the bcast station. At this stage the TBTT and DTIM time 2482 * events are added and applied to the scheduler 2483 */ 2484 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2485 if (ret) { 2486 iwl_mvm_rm_mcast_sta(mvm, vif); 2487 goto out_unbind; 2488 } 2489 } else { 2490 /* 2491 * Send the bcast station. At this stage the TBTT and DTIM time 2492 * events are added and applied to the scheduler 2493 */ 2494 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2495 if (ret) 2496 goto out_unbind; 2497 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2498 if (ret) { 2499 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2500 goto out_unbind; 2501 } 2502 } 2503 2504 /* must be set before quota calculations */ 2505 mvmvif->ap_ibss_active = true; 2506 2507 /* send all the early keys to the device now */ 2508 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2509 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2510 2511 if (!key) 2512 continue; 2513 2514 mvmvif->ap_early_keys[i] = NULL; 2515 2516 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2517 if (ret) 2518 goto out_quota_failed; 2519 } 2520 2521 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2522 iwl_mvm_vif_set_low_latency(mvmvif, true, 2523 LOW_LATENCY_VIF_TYPE); 2524 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2525 } 2526 2527 /* power updated needs to be done before quotas */ 2528 iwl_mvm_power_update_mac(mvm); 2529 2530 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2531 if (ret) 2532 goto out_quota_failed; 2533 2534 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2535 if (vif->p2p && mvm->p2p_device_vif) 2536 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2537 2538 iwl_mvm_bt_coex_vif_change(mvm); 2539 2540 /* we don't support TDLS during DCM */ 2541 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2542 iwl_mvm_teardown_tdls_peers(mvm); 2543 2544 iwl_mvm_ftm_restart_responder(mvm, vif); 2545 2546 goto out_unlock; 2547 2548 out_quota_failed: 2549 iwl_mvm_power_update_mac(mvm); 2550 mvmvif->ap_ibss_active = false; 2551 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2552 iwl_mvm_rm_mcast_sta(mvm, vif); 2553 out_unbind: 2554 iwl_mvm_binding_remove_vif(mvm, vif); 2555 out_remove: 2556 iwl_mvm_mac_ctxt_remove(mvm, vif); 2557 out_unlock: 2558 mutex_unlock(&mvm->mutex); 2559 return ret; 2560 } 2561 2562 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2563 struct ieee80211_vif *vif, 2564 struct ieee80211_bss_conf *link_conf) 2565 { 2566 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2567 } 2568 2569 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2570 struct ieee80211_vif *vif) 2571 { 2572 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2573 } 2574 2575 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2576 struct ieee80211_vif *vif, 2577 struct ieee80211_bss_conf *link_conf) 2578 { 2579 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2580 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2581 2582 iwl_mvm_prepare_mac_removal(mvm, vif); 2583 2584 mutex_lock(&mvm->mutex); 2585 2586 /* Handle AP stop while in CSA */ 2587 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2588 iwl_mvm_remove_time_event(mvm, mvmvif, 2589 &mvmvif->time_event_data); 2590 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2591 mvmvif->csa_countdown = false; 2592 } 2593 2594 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2595 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2596 mvm->csa_tx_block_bcn_timeout = 0; 2597 } 2598 2599 mvmvif->ap_ibss_active = false; 2600 mvm->ap_last_beacon_gp2 = 0; 2601 2602 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2603 iwl_mvm_vif_set_low_latency(mvmvif, false, 2604 LOW_LATENCY_VIF_TYPE); 2605 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2606 } 2607 2608 iwl_mvm_bt_coex_vif_change(mvm); 2609 2610 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2611 if (vif->p2p && mvm->p2p_device_vif) 2612 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2613 2614 iwl_mvm_update_quotas(mvm, false, NULL); 2615 2616 iwl_mvm_ftm_responder_clear(mvm, vif); 2617 2618 /* 2619 * This is not very nice, but the simplest: 2620 * For older FWs removing the mcast sta before the bcast station may 2621 * cause assert 0x2b00. 2622 * This is fixed in later FW (which will stop beaconing when removing 2623 * bcast station). 2624 * So make the order of removal depend on the TLV 2625 */ 2626 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2627 iwl_mvm_rm_mcast_sta(mvm, vif); 2628 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2629 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2630 iwl_mvm_rm_mcast_sta(mvm, vif); 2631 iwl_mvm_binding_remove_vif(mvm, vif); 2632 2633 iwl_mvm_power_update_mac(mvm); 2634 2635 iwl_mvm_mac_ctxt_remove(mvm, vif); 2636 2637 mutex_unlock(&mvm->mutex); 2638 } 2639 2640 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 2641 struct ieee80211_vif *vif, 2642 struct ieee80211_bss_conf *link_conf) 2643 { 2644 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 2645 } 2646 2647 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 2648 struct ieee80211_vif *vif) 2649 { 2650 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 2651 } 2652 2653 static void 2654 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2655 struct ieee80211_vif *vif, 2656 struct ieee80211_bss_conf *bss_conf, 2657 u64 changes) 2658 { 2659 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2660 2661 /* Changes will be applied when the AP/IBSS is started */ 2662 if (!mvmvif->ap_ibss_active) 2663 return; 2664 2665 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2666 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2667 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2668 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2669 2670 /* Need to send a new beacon template to the FW */ 2671 if (changes & BSS_CHANGED_BEACON && 2672 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2673 IWL_WARN(mvm, "Failed updating beacon data\n"); 2674 2675 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2676 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2677 2678 if (ret) 2679 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2680 ret); 2681 } 2682 2683 } 2684 2685 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2686 struct ieee80211_vif *vif, 2687 struct ieee80211_bss_conf *bss_conf, 2688 u64 changes) 2689 { 2690 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2691 2692 mutex_lock(&mvm->mutex); 2693 2694 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2695 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2696 2697 switch (vif->type) { 2698 case NL80211_IFTYPE_STATION: 2699 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2700 break; 2701 case NL80211_IFTYPE_AP: 2702 case NL80211_IFTYPE_ADHOC: 2703 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2704 break; 2705 case NL80211_IFTYPE_MONITOR: 2706 if (changes & BSS_CHANGED_MU_GROUPS) 2707 iwl_mvm_update_mu_groups(mvm, vif); 2708 break; 2709 default: 2710 /* shouldn't happen */ 2711 WARN_ON_ONCE(1); 2712 } 2713 2714 if (changes & BSS_CHANGED_TXPOWER) { 2715 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 2716 bss_conf->txpower); 2717 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2718 } 2719 2720 mutex_unlock(&mvm->mutex); 2721 } 2722 2723 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2724 struct ieee80211_vif *vif, 2725 struct ieee80211_scan_request *hw_req) 2726 { 2727 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2728 int ret; 2729 2730 if (hw_req->req.n_channels == 0 || 2731 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2732 return -EINVAL; 2733 2734 mutex_lock(&mvm->mutex); 2735 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2736 mutex_unlock(&mvm->mutex); 2737 2738 return ret; 2739 } 2740 2741 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2742 struct ieee80211_vif *vif) 2743 { 2744 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2745 2746 mutex_lock(&mvm->mutex); 2747 2748 /* Due to a race condition, it's possible that mac80211 asks 2749 * us to stop a hw_scan when it's already stopped. This can 2750 * happen, for instance, if we stopped the scan ourselves, 2751 * called ieee80211_scan_completed() and the userspace called 2752 * cancel scan scan before ieee80211_scan_work() could run. 2753 * To handle that, simply return if the scan is not running. 2754 */ 2755 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2756 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2757 2758 mutex_unlock(&mvm->mutex); 2759 } 2760 2761 static void 2762 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2763 struct ieee80211_sta *sta, u16 tids, 2764 int num_frames, 2765 enum ieee80211_frame_release_type reason, 2766 bool more_data) 2767 { 2768 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2769 2770 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2771 2772 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2773 tids, more_data, false); 2774 } 2775 2776 static void 2777 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2778 struct ieee80211_sta *sta, u16 tids, 2779 int num_frames, 2780 enum ieee80211_frame_release_type reason, 2781 bool more_data) 2782 { 2783 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2784 2785 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2786 2787 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2788 tids, more_data, true); 2789 } 2790 2791 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2792 enum sta_notify_cmd cmd, 2793 struct ieee80211_sta *sta) 2794 { 2795 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2796 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2797 unsigned long txqs = 0, tids = 0; 2798 int tid; 2799 2800 /* 2801 * If we have TVQM then we get too high queue numbers - luckily 2802 * we really shouldn't get here with that because such hardware 2803 * should have firmware supporting buffer station offload. 2804 */ 2805 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2806 return; 2807 2808 spin_lock_bh(&mvmsta->lock); 2809 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2810 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2811 2812 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2813 continue; 2814 2815 __set_bit(tid_data->txq_id, &txqs); 2816 2817 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2818 continue; 2819 2820 __set_bit(tid, &tids); 2821 } 2822 2823 switch (cmd) { 2824 case STA_NOTIFY_SLEEP: 2825 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2826 ieee80211_sta_set_buffered(sta, tid, true); 2827 2828 if (txqs) 2829 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2830 /* 2831 * The fw updates the STA to be asleep. Tx packets on the Tx 2832 * queues to this station will not be transmitted. The fw will 2833 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2834 */ 2835 break; 2836 case STA_NOTIFY_AWAKE: 2837 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2838 break; 2839 2840 if (txqs) 2841 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2842 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2843 break; 2844 default: 2845 break; 2846 } 2847 spin_unlock_bh(&mvmsta->lock); 2848 } 2849 2850 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2851 struct ieee80211_vif *vif, 2852 enum sta_notify_cmd cmd, 2853 struct ieee80211_sta *sta) 2854 { 2855 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2856 } 2857 2858 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2859 { 2860 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2861 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2862 struct ieee80211_sta *sta; 2863 struct iwl_mvm_sta *mvmsta; 2864 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2865 2866 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 2867 return; 2868 2869 rcu_read_lock(); 2870 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2871 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2872 rcu_read_unlock(); 2873 return; 2874 } 2875 2876 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2877 2878 if (!mvmsta->vif || 2879 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2880 rcu_read_unlock(); 2881 return; 2882 } 2883 2884 if (mvmsta->sleeping != sleeping) { 2885 mvmsta->sleeping = sleeping; 2886 __iwl_mvm_mac_sta_notify(mvm->hw, 2887 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2888 sta); 2889 ieee80211_sta_ps_transition(sta, sleeping); 2890 } 2891 2892 if (sleeping) { 2893 switch (notif->type) { 2894 case IWL_MVM_PM_EVENT_AWAKE: 2895 case IWL_MVM_PM_EVENT_ASLEEP: 2896 break; 2897 case IWL_MVM_PM_EVENT_UAPSD: 2898 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2899 break; 2900 case IWL_MVM_PM_EVENT_PS_POLL: 2901 ieee80211_sta_pspoll(sta); 2902 break; 2903 default: 2904 break; 2905 } 2906 } 2907 2908 rcu_read_unlock(); 2909 } 2910 2911 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2912 struct ieee80211_vif *vif, 2913 struct ieee80211_sta *sta) 2914 { 2915 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2916 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2917 2918 /* 2919 * This is called before mac80211 does RCU synchronisation, 2920 * so here we already invalidate our internal RCU-protected 2921 * station pointer. The rest of the code will thus no longer 2922 * be able to find the station this way, and we don't rely 2923 * on further RCU synchronisation after the sta_state() 2924 * callback deleted the station. 2925 */ 2926 mutex_lock(&mvm->mutex); 2927 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2928 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2929 ERR_PTR(-ENOENT)); 2930 2931 mutex_unlock(&mvm->mutex); 2932 } 2933 2934 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2935 const u8 *bssid) 2936 { 2937 int i; 2938 2939 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2940 struct iwl_mvm_tcm_mac *mdata; 2941 2942 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 2943 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 2944 mdata->opened_rx_ba_sessions = false; 2945 } 2946 2947 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2948 return; 2949 2950 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2951 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2952 return; 2953 } 2954 2955 if (!vif->p2p && 2956 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2957 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2958 return; 2959 } 2960 2961 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 2962 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 2963 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2964 return; 2965 } 2966 } 2967 2968 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2969 } 2970 2971 static void 2972 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 2973 struct ieee80211_vif *vif, u8 *peer_addr, 2974 enum nl80211_tdls_operation action) 2975 { 2976 struct iwl_fw_dbg_trigger_tlv *trig; 2977 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 2978 2979 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 2980 FW_DBG_TRIGGER_TDLS); 2981 if (!trig) 2982 return; 2983 2984 tdls_trig = (void *)trig->data; 2985 2986 if (!(tdls_trig->action_bitmap & BIT(action))) 2987 return; 2988 2989 if (tdls_trig->peer_mode && 2990 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 2991 return; 2992 2993 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 2994 "TDLS event occurred, peer %pM, action %d", 2995 peer_addr, action); 2996 } 2997 2998 struct iwl_mvm_he_obss_narrow_bw_ru_data { 2999 bool tolerated; 3000 }; 3001 3002 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3003 struct cfg80211_bss *bss, 3004 void *_data) 3005 { 3006 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3007 const struct cfg80211_bss_ies *ies; 3008 const struct element *elem; 3009 3010 rcu_read_lock(); 3011 ies = rcu_dereference(bss->ies); 3012 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3013 ies->len); 3014 3015 if (!elem || elem->datalen < 10 || 3016 !(elem->data[10] & 3017 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3018 data->tolerated = false; 3019 } 3020 rcu_read_unlock(); 3021 } 3022 3023 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3024 struct ieee80211_vif *vif) 3025 { 3026 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3027 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3028 .tolerated = true, 3029 }; 3030 3031 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3032 mvmvif->he_ru_2mhz_block = false; 3033 return; 3034 } 3035 3036 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3037 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3038 &iter_data); 3039 3040 /* 3041 * If there is at least one AP on radar channel that cannot 3042 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3043 */ 3044 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3045 } 3046 3047 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3048 struct ieee80211_vif *vif) 3049 { 3050 struct ieee80211_supported_band *sband; 3051 const struct ieee80211_sta_he_cap *he_cap; 3052 3053 if (vif->type != NL80211_IFTYPE_STATION) 3054 return; 3055 3056 if (!mvm->cca_40mhz_workaround) 3057 return; 3058 3059 /* decrement and check that we reached zero */ 3060 mvm->cca_40mhz_workaround--; 3061 if (mvm->cca_40mhz_workaround) 3062 return; 3063 3064 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3065 3066 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3067 3068 he_cap = ieee80211_get_he_iftype_cap(sband, 3069 ieee80211_vif_type_p2p(vif)); 3070 3071 if (he_cap) { 3072 /* we know that ours is writable */ 3073 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3074 3075 he->he_cap_elem.phy_cap_info[0] |= 3076 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3077 } 3078 } 3079 3080 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3081 struct ieee80211_vif *vif, 3082 struct iwl_mvm_sta *mvm_sta) 3083 { 3084 #if IS_ENABLED(CONFIG_IWLMEI) 3085 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3086 struct iwl_mei_conn_info conn_info = { 3087 .ssid_len = vif->bss_conf.ssid_len, 3088 .channel = vif->bss_conf.chandef.chan->hw_value, 3089 }; 3090 3091 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3092 return; 3093 3094 if (!mvm->mei_registered) 3095 return; 3096 3097 switch (mvm_sta->pairwise_cipher) { 3098 case WLAN_CIPHER_SUITE_CCMP: 3099 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3100 break; 3101 case WLAN_CIPHER_SUITE_GCMP: 3102 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3103 break; 3104 case WLAN_CIPHER_SUITE_GCMP_256: 3105 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3106 break; 3107 case 0: 3108 /* open profile */ 3109 break; 3110 default: 3111 /* cipher not supported, don't send anything to iwlmei */ 3112 return; 3113 } 3114 3115 switch (mvmvif->rekey_data.akm) { 3116 case WLAN_AKM_SUITE_SAE & 0xff: 3117 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3118 break; 3119 case WLAN_AKM_SUITE_PSK & 0xff: 3120 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3121 break; 3122 case WLAN_AKM_SUITE_8021X & 0xff: 3123 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3124 break; 3125 case 0: 3126 /* open profile */ 3127 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3128 break; 3129 default: 3130 /* auth method / AKM not supported */ 3131 /* TODO: All the FT vesions of these? */ 3132 return; 3133 } 3134 3135 memcpy(conn_info.ssid, vif->bss_conf.ssid, vif->bss_conf.ssid_len); 3136 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3137 3138 /* TODO: add support for collocated AP data */ 3139 iwl_mei_host_associated(&conn_info, NULL); 3140 #endif 3141 } 3142 3143 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3144 struct ieee80211_vif *vif, 3145 struct ieee80211_sta *sta, 3146 enum ieee80211_sta_state old_state, 3147 enum ieee80211_sta_state new_state) 3148 { 3149 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3150 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3151 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3152 int ret; 3153 3154 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3155 sta->addr, old_state, new_state); 3156 3157 /* this would be a mac80211 bug ... but don't crash */ 3158 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3159 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) ? 0 : -EINVAL; 3160 3161 /* 3162 * If we are in a STA removal flow and in DQA mode: 3163 * 3164 * This is after the sync_rcu part, so the queues have already been 3165 * flushed. No more TXs on their way in mac80211's path, and no more in 3166 * the queues. 3167 * Also, we won't be getting any new TX frames for this station. 3168 * What we might have are deferred TX frames that need to be taken care 3169 * of. 3170 * 3171 * Drop any still-queued deferred-frame before removing the STA, and 3172 * make sure the worker is no longer handling frames for this STA. 3173 */ 3174 if (old_state == IEEE80211_STA_NONE && 3175 new_state == IEEE80211_STA_NOTEXIST) { 3176 flush_work(&mvm->add_stream_wk); 3177 3178 /* 3179 * No need to make sure deferred TX indication is off since the 3180 * worker will already remove it if it was on 3181 */ 3182 3183 /* 3184 * Additionally, reset the 40 MHz capability if we disconnected 3185 * from the AP now. 3186 */ 3187 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3188 } 3189 3190 mutex_lock(&mvm->mutex); 3191 /* track whether or not the station is associated */ 3192 mvm_sta->sta_state = new_state; 3193 3194 if (old_state == IEEE80211_STA_NOTEXIST && 3195 new_state == IEEE80211_STA_NONE) { 3196 /* 3197 * Firmware bug - it'll crash if the beacon interval is less 3198 * than 16. We can't avoid connecting at all, so refuse the 3199 * station state change, this will cause mac80211 to abandon 3200 * attempts to connect to this AP, and eventually wpa_s will 3201 * blocklist the AP... 3202 */ 3203 if (vif->type == NL80211_IFTYPE_STATION && 3204 vif->bss_conf.beacon_int < 16) { 3205 IWL_ERR(mvm, 3206 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3207 sta->addr, vif->bss_conf.beacon_int); 3208 ret = -EINVAL; 3209 goto out_unlock; 3210 } 3211 3212 if (vif->type == NL80211_IFTYPE_STATION) 3213 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3214 3215 if (sta->tdls && 3216 (vif->p2p || 3217 iwl_mvm_tdls_sta_count(mvm, NULL) == 3218 IWL_MVM_TDLS_STA_COUNT || 3219 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3220 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3221 ret = -EBUSY; 3222 goto out_unlock; 3223 } 3224 3225 ret = iwl_mvm_add_sta(mvm, vif, sta); 3226 if (sta->tdls && ret == 0) { 3227 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3228 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3229 NL80211_TDLS_SETUP); 3230 } 3231 3232 sta->max_rc_amsdu_len = 1; 3233 } else if (old_state == IEEE80211_STA_NONE && 3234 new_state == IEEE80211_STA_AUTH) { 3235 /* 3236 * EBS may be disabled due to previous failures reported by FW. 3237 * Reset EBS status here assuming environment has been changed. 3238 */ 3239 mvm->last_ebs_successful = true; 3240 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3241 ret = 0; 3242 } else if (old_state == IEEE80211_STA_AUTH && 3243 new_state == IEEE80211_STA_ASSOC) { 3244 if (vif->type == NL80211_IFTYPE_AP) { 3245 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3246 mvmvif->ap_assoc_sta_count++; 3247 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3248 if (vif->bss_conf.he_support && 3249 !iwlwifi_mod_params.disable_11ax) 3250 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3251 } else if (vif->type == NL80211_IFTYPE_STATION) { 3252 vif->bss_conf.he_support = sta->deflink.he_cap.has_he; 3253 3254 mvmvif->he_ru_2mhz_block = false; 3255 if (sta->deflink.he_cap.has_he) 3256 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3257 3258 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3259 } 3260 3261 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3262 false); 3263 ret = iwl_mvm_update_sta(mvm, vif, sta); 3264 } else if (old_state == IEEE80211_STA_ASSOC && 3265 new_state == IEEE80211_STA_AUTHORIZED) { 3266 ret = 0; 3267 3268 /* we don't support TDLS during DCM */ 3269 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3270 iwl_mvm_teardown_tdls_peers(mvm); 3271 3272 if (sta->tdls) { 3273 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3274 NL80211_TDLS_ENABLE_LINK); 3275 } else { 3276 /* enable beacon filtering */ 3277 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3278 3279 mvmvif->authorized = 1; 3280 3281 /* 3282 * Now that the station is authorized, i.e., keys were already 3283 * installed, need to indicate to the FW that 3284 * multicast data frames can be forwarded to the driver 3285 */ 3286 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3287 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3288 } 3289 3290 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3291 true); 3292 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3293 new_state == IEEE80211_STA_ASSOC) { 3294 /* once we move into assoc state, need to update rate scale to 3295 * disable using wide bandwidth 3296 */ 3297 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3298 false); 3299 if (!sta->tdls) { 3300 /* Multicast data frames are no longer allowed */ 3301 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3302 3303 /* 3304 * Set this after the above iwl_mvm_mac_ctxt_changed() 3305 * to avoid sending high prio again for a little time. 3306 */ 3307 mvmvif->authorized = 0; 3308 3309 /* disable beacon filtering */ 3310 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3311 WARN_ON(ret && 3312 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3313 &mvm->status)); 3314 } 3315 ret = 0; 3316 } else if (old_state == IEEE80211_STA_ASSOC && 3317 new_state == IEEE80211_STA_AUTH) { 3318 if (vif->type == NL80211_IFTYPE_AP) { 3319 mvmvif->ap_assoc_sta_count--; 3320 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3321 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3322 iwl_mvm_stop_session_protection(mvm, vif); 3323 ret = 0; 3324 } else if (old_state == IEEE80211_STA_AUTH && 3325 new_state == IEEE80211_STA_NONE) { 3326 ret = 0; 3327 } else if (old_state == IEEE80211_STA_NONE && 3328 new_state == IEEE80211_STA_NOTEXIST) { 3329 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3330 iwl_mvm_stop_session_protection(mvm, vif); 3331 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3332 if (sta->tdls) { 3333 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3334 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3335 NL80211_TDLS_DISABLE_LINK); 3336 } 3337 3338 if (unlikely(ret && 3339 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3340 &mvm->status))) 3341 ret = 0; 3342 } else { 3343 ret = -EIO; 3344 } 3345 out_unlock: 3346 mutex_unlock(&mvm->mutex); 3347 3348 if (sta->tdls && ret == 0) { 3349 if (old_state == IEEE80211_STA_NOTEXIST && 3350 new_state == IEEE80211_STA_NONE) 3351 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3352 else if (old_state == IEEE80211_STA_NONE && 3353 new_state == IEEE80211_STA_NOTEXIST) 3354 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3355 } 3356 3357 return ret; 3358 } 3359 3360 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3361 { 3362 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3363 3364 mvm->rts_threshold = value; 3365 3366 return 0; 3367 } 3368 3369 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3370 struct ieee80211_vif *vif, 3371 struct ieee80211_sta *sta, u32 changed) 3372 { 3373 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3374 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3375 3376 if (changed & (IEEE80211_RC_BW_CHANGED | 3377 IEEE80211_RC_SUPP_RATES_CHANGED | 3378 IEEE80211_RC_NSS_CHANGED)) 3379 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3380 true); 3381 3382 if (vif->type == NL80211_IFTYPE_STATION && 3383 changed & IEEE80211_RC_NSS_CHANGED) 3384 iwl_mvm_sf_update(mvm, vif, false); 3385 } 3386 3387 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3388 struct ieee80211_vif *vif, 3389 unsigned int link_id, u16 ac, 3390 const struct ieee80211_tx_queue_params *params) 3391 { 3392 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3393 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3394 3395 mvmvif->queue_params[ac] = *params; 3396 3397 /* 3398 * No need to update right away, we'll get BSS_CHANGED_QOS 3399 * The exception is P2P_DEVICE interface which needs immediate update. 3400 */ 3401 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3402 int ret; 3403 3404 mutex_lock(&mvm->mutex); 3405 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3406 mutex_unlock(&mvm->mutex); 3407 return ret; 3408 } 3409 return 0; 3410 } 3411 3412 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3413 struct ieee80211_vif *vif, 3414 struct ieee80211_prep_tx_info *info) 3415 { 3416 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3417 3418 mutex_lock(&mvm->mutex); 3419 iwl_mvm_protect_assoc(mvm, vif, info->duration); 3420 mutex_unlock(&mvm->mutex); 3421 } 3422 3423 static void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 3424 struct ieee80211_vif *vif, 3425 struct ieee80211_prep_tx_info *info) 3426 { 3427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3428 3429 /* for successful cases (auth/assoc), don't cancel session protection */ 3430 if (info->success) 3431 return; 3432 3433 mutex_lock(&mvm->mutex); 3434 iwl_mvm_stop_session_protection(mvm, vif); 3435 mutex_unlock(&mvm->mutex); 3436 } 3437 3438 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3439 struct ieee80211_vif *vif, 3440 struct cfg80211_sched_scan_request *req, 3441 struct ieee80211_scan_ies *ies) 3442 { 3443 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3444 3445 int ret; 3446 3447 mutex_lock(&mvm->mutex); 3448 3449 if (!vif->bss_conf.idle) { 3450 ret = -EBUSY; 3451 goto out; 3452 } 3453 3454 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3455 3456 out: 3457 mutex_unlock(&mvm->mutex); 3458 return ret; 3459 } 3460 3461 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3462 struct ieee80211_vif *vif) 3463 { 3464 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3465 int ret; 3466 3467 mutex_lock(&mvm->mutex); 3468 3469 /* Due to a race condition, it's possible that mac80211 asks 3470 * us to stop a sched_scan when it's already stopped. This 3471 * can happen, for instance, if we stopped the scan ourselves, 3472 * called ieee80211_sched_scan_stopped() and the userspace called 3473 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3474 * could run. To handle this, simply return if the scan is 3475 * not running. 3476 */ 3477 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3478 mutex_unlock(&mvm->mutex); 3479 return 0; 3480 } 3481 3482 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3483 mutex_unlock(&mvm->mutex); 3484 iwl_mvm_wait_for_async_handlers(mvm); 3485 3486 return ret; 3487 } 3488 3489 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3490 enum set_key_cmd cmd, 3491 struct ieee80211_vif *vif, 3492 struct ieee80211_sta *sta, 3493 struct ieee80211_key_conf *key) 3494 { 3495 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3496 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3497 struct iwl_mvm_sta *mvmsta = NULL; 3498 struct iwl_mvm_key_pn *ptk_pn; 3499 int keyidx = key->keyidx; 3500 int ret, i; 3501 u8 key_offset; 3502 3503 if (sta) 3504 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3505 3506 switch (key->cipher) { 3507 case WLAN_CIPHER_SUITE_TKIP: 3508 if (!mvm->trans->trans_cfg->gen2) { 3509 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3510 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3511 } else if (vif->type == NL80211_IFTYPE_STATION) { 3512 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3513 } else { 3514 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3515 return -EOPNOTSUPP; 3516 } 3517 break; 3518 case WLAN_CIPHER_SUITE_CCMP: 3519 case WLAN_CIPHER_SUITE_GCMP: 3520 case WLAN_CIPHER_SUITE_GCMP_256: 3521 if (!iwl_mvm_has_new_tx_api(mvm)) 3522 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3523 break; 3524 case WLAN_CIPHER_SUITE_AES_CMAC: 3525 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3526 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3527 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3528 break; 3529 case WLAN_CIPHER_SUITE_WEP40: 3530 case WLAN_CIPHER_SUITE_WEP104: 3531 if (vif->type == NL80211_IFTYPE_STATION) 3532 break; 3533 if (iwl_mvm_has_new_tx_api(mvm)) 3534 return -EOPNOTSUPP; 3535 /* support HW crypto on TX */ 3536 return 0; 3537 default: 3538 return -EOPNOTSUPP; 3539 } 3540 3541 switch (cmd) { 3542 case SET_KEY: 3543 if (keyidx == 6 || keyidx == 7) 3544 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 3545 key); 3546 3547 if ((vif->type == NL80211_IFTYPE_ADHOC || 3548 vif->type == NL80211_IFTYPE_AP) && !sta) { 3549 /* 3550 * GTK on AP interface is a TX-only key, return 0; 3551 * on IBSS they're per-station and because we're lazy 3552 * we don't support them for RX, so do the same. 3553 * CMAC/GMAC in AP/IBSS modes must be done in software. 3554 */ 3555 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3556 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3557 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3558 ret = -EOPNOTSUPP; 3559 break; 3560 } 3561 3562 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3563 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3564 !iwl_mvm_has_new_tx_api(mvm)) { 3565 key->hw_key_idx = STA_KEY_IDX_INVALID; 3566 ret = 0; 3567 break; 3568 } 3569 3570 if (!mvmvif->ap_ibss_active) { 3571 for (i = 0; 3572 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3573 i++) { 3574 if (!mvmvif->ap_early_keys[i]) { 3575 mvmvif->ap_early_keys[i] = key; 3576 break; 3577 } 3578 } 3579 3580 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3581 ret = -ENOSPC; 3582 else 3583 ret = 0; 3584 3585 break; 3586 } 3587 } 3588 3589 /* During FW restart, in order to restore the state as it was, 3590 * don't try to reprogram keys we previously failed for. 3591 */ 3592 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3593 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3594 IWL_DEBUG_MAC80211(mvm, 3595 "skip invalid idx key programming during restart\n"); 3596 ret = 0; 3597 break; 3598 } 3599 3600 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3601 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3602 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3603 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3604 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3605 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3606 struct ieee80211_key_seq seq; 3607 int tid, q; 3608 3609 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3610 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3611 mvm->trans->num_rx_queues), 3612 GFP_KERNEL); 3613 if (!ptk_pn) { 3614 ret = -ENOMEM; 3615 break; 3616 } 3617 3618 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3619 ieee80211_get_key_rx_seq(key, tid, &seq); 3620 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3621 memcpy(ptk_pn->q[q].pn[tid], 3622 seq.ccmp.pn, 3623 IEEE80211_CCMP_PN_LEN); 3624 } 3625 3626 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3627 } 3628 3629 /* in HW restart reuse the index, otherwise request a new one */ 3630 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3631 key_offset = key->hw_key_idx; 3632 else 3633 key_offset = STA_KEY_IDX_INVALID; 3634 3635 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 3636 mvmsta->pairwise_cipher = key->cipher; 3637 3638 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3639 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3640 if (ret) { 3641 IWL_WARN(mvm, "set key failed\n"); 3642 key->hw_key_idx = STA_KEY_IDX_INVALID; 3643 /* 3644 * can't add key for RX, but we don't need it 3645 * in the device for TX so still return 0, 3646 * unless we have new TX API where we cannot 3647 * put key material into the TX_CMD 3648 */ 3649 if (iwl_mvm_has_new_tx_api(mvm)) 3650 ret = -EOPNOTSUPP; 3651 else 3652 ret = 0; 3653 } 3654 3655 break; 3656 case DISABLE_KEY: 3657 if (keyidx == 6 || keyidx == 7) 3658 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 3659 NULL); 3660 3661 ret = -ENOENT; 3662 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3663 if (mvmvif->ap_early_keys[i] == key) { 3664 mvmvif->ap_early_keys[i] = NULL; 3665 ret = 0; 3666 } 3667 } 3668 3669 /* found in pending list - don't do anything else */ 3670 if (ret == 0) 3671 break; 3672 3673 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3674 ret = 0; 3675 break; 3676 } 3677 3678 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3679 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3680 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3681 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3682 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3683 ptk_pn = rcu_dereference_protected( 3684 mvmsta->ptk_pn[keyidx], 3685 lockdep_is_held(&mvm->mutex)); 3686 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3687 if (ptk_pn) 3688 kfree_rcu(ptk_pn, rcu_head); 3689 } 3690 3691 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3692 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3693 break; 3694 default: 3695 ret = -EINVAL; 3696 } 3697 3698 return ret; 3699 } 3700 3701 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3702 enum set_key_cmd cmd, 3703 struct ieee80211_vif *vif, 3704 struct ieee80211_sta *sta, 3705 struct ieee80211_key_conf *key) 3706 { 3707 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3708 int ret; 3709 3710 mutex_lock(&mvm->mutex); 3711 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3712 mutex_unlock(&mvm->mutex); 3713 3714 return ret; 3715 } 3716 3717 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3718 struct ieee80211_vif *vif, 3719 struct ieee80211_key_conf *keyconf, 3720 struct ieee80211_sta *sta, 3721 u32 iv32, u16 *phase1key) 3722 { 3723 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3724 3725 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3726 return; 3727 3728 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3729 } 3730 3731 3732 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3733 struct iwl_rx_packet *pkt, void *data) 3734 { 3735 struct iwl_mvm *mvm = 3736 container_of(notif_wait, struct iwl_mvm, notif_wait); 3737 struct iwl_hs20_roc_res *resp; 3738 int resp_len = iwl_rx_packet_payload_len(pkt); 3739 struct iwl_mvm_time_event_data *te_data = data; 3740 3741 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3742 return true; 3743 3744 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3745 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3746 return true; 3747 } 3748 3749 resp = (void *)pkt->data; 3750 3751 IWL_DEBUG_TE(mvm, 3752 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3753 resp->status, resp->event_unique_id); 3754 3755 te_data->uid = le32_to_cpu(resp->event_unique_id); 3756 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3757 te_data->uid); 3758 3759 spin_lock_bh(&mvm->time_event_lock); 3760 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3761 spin_unlock_bh(&mvm->time_event_lock); 3762 3763 return true; 3764 } 3765 3766 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3767 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3768 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3769 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3770 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3771 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3772 struct ieee80211_channel *channel, 3773 struct ieee80211_vif *vif, 3774 int duration) 3775 { 3776 int res; 3777 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3778 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3779 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3780 struct iwl_notification_wait wait_time_event; 3781 u32 dtim_interval = vif->bss_conf.dtim_period * 3782 vif->bss_conf.beacon_int; 3783 u32 req_dur, delay; 3784 struct iwl_hs20_roc_req aux_roc_req = { 3785 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3786 .id_and_color = 3787 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3788 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3789 }; 3790 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3791 &aux_roc_req.channel_info); 3792 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3793 3794 /* Set the channel info data */ 3795 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3796 iwl_mvm_phy_band_from_nl80211(channel->band), 3797 PHY_VHT_CHANNEL_MODE20, 3798 0); 3799 3800 /* Set the time and duration */ 3801 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3802 3803 delay = AUX_ROC_MIN_DELAY; 3804 req_dur = MSEC_TO_TU(duration); 3805 3806 /* 3807 * If we are associated we want the delay time to be at least one 3808 * dtim interval so that the FW can wait until after the DTIM and 3809 * then start the time event, this will potentially allow us to 3810 * remain off-channel for the max duration. 3811 * Since we want to use almost a whole dtim interval we would also 3812 * like the delay to be for 2-3 dtim intervals, in case there are 3813 * other time events with higher priority. 3814 */ 3815 if (vif->bss_conf.assoc) { 3816 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3817 /* We cannot remain off-channel longer than the DTIM interval */ 3818 if (dtim_interval <= req_dur) { 3819 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3820 if (req_dur <= AUX_ROC_MIN_DURATION) 3821 req_dur = dtim_interval - 3822 AUX_ROC_MIN_SAFETY_BUFFER; 3823 } 3824 } 3825 3826 tail->duration = cpu_to_le32(req_dur); 3827 tail->apply_time_max_delay = cpu_to_le32(delay); 3828 3829 IWL_DEBUG_TE(mvm, 3830 "ROC: Requesting to remain on channel %u for %ums\n", 3831 channel->hw_value, req_dur); 3832 IWL_DEBUG_TE(mvm, 3833 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3834 duration, delay, dtim_interval); 3835 3836 /* Set the node address */ 3837 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3838 3839 lockdep_assert_held(&mvm->mutex); 3840 3841 spin_lock_bh(&mvm->time_event_lock); 3842 3843 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3844 spin_unlock_bh(&mvm->time_event_lock); 3845 return -EIO; 3846 } 3847 3848 te_data->vif = vif; 3849 te_data->duration = duration; 3850 te_data->id = HOT_SPOT_CMD; 3851 3852 spin_unlock_bh(&mvm->time_event_lock); 3853 3854 /* 3855 * Use a notification wait, which really just processes the 3856 * command response and doesn't wait for anything, in order 3857 * to be able to process the response and get the UID inside 3858 * the RX path. Using CMD_WANT_SKB doesn't work because it 3859 * stores the buffer and then wakes up this thread, by which 3860 * time another notification (that the time event started) 3861 * might already be processed unsuccessfully. 3862 */ 3863 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3864 time_event_response, 3865 ARRAY_SIZE(time_event_response), 3866 iwl_mvm_rx_aux_roc, te_data); 3867 3868 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3869 &aux_roc_req); 3870 3871 if (res) { 3872 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3873 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3874 goto out_clear_te; 3875 } 3876 3877 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3878 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3879 /* should never fail */ 3880 WARN_ON_ONCE(res); 3881 3882 if (res) { 3883 out_clear_te: 3884 spin_lock_bh(&mvm->time_event_lock); 3885 iwl_mvm_te_clear_data(mvm, te_data); 3886 spin_unlock_bh(&mvm->time_event_lock); 3887 } 3888 3889 return res; 3890 } 3891 3892 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3893 struct ieee80211_vif *vif, 3894 struct ieee80211_channel *channel, 3895 int duration, 3896 enum ieee80211_roc_type type) 3897 { 3898 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3899 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3900 struct cfg80211_chan_def chandef; 3901 struct iwl_mvm_phy_ctxt *phy_ctxt; 3902 bool band_change_removal; 3903 int ret, i; 3904 3905 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3906 duration, type); 3907 3908 /* 3909 * Flush the done work, just in case it's still pending, so that 3910 * the work it does can complete and we can accept new frames. 3911 */ 3912 flush_work(&mvm->roc_done_wk); 3913 3914 mutex_lock(&mvm->mutex); 3915 3916 switch (vif->type) { 3917 case NL80211_IFTYPE_STATION: 3918 if (fw_has_capa(&mvm->fw->ucode_capa, 3919 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3920 /* Use aux roc framework (HS20) */ 3921 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) { 3922 u32 lmac_id; 3923 3924 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, 3925 channel->band); 3926 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 3927 if (WARN(ret, 3928 "Failed to allocate aux station")) 3929 goto out_unlock; 3930 } 3931 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3932 vif, duration); 3933 goto out_unlock; 3934 } 3935 IWL_ERR(mvm, "hotspot not supported\n"); 3936 ret = -EINVAL; 3937 goto out_unlock; 3938 case NL80211_IFTYPE_P2P_DEVICE: 3939 /* handle below */ 3940 break; 3941 default: 3942 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3943 ret = -EINVAL; 3944 goto out_unlock; 3945 } 3946 3947 for (i = 0; i < NUM_PHY_CTX; i++) { 3948 phy_ctxt = &mvm->phy_ctxts[i]; 3949 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3950 continue; 3951 3952 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3953 /* 3954 * Unbind the P2P_DEVICE from the current PHY context, 3955 * and if the PHY context is not used remove it. 3956 */ 3957 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3958 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3959 goto out_unlock; 3960 3961 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3962 3963 /* Bind the P2P_DEVICE to the current PHY Context */ 3964 mvmvif->phy_ctxt = phy_ctxt; 3965 3966 ret = iwl_mvm_binding_add_vif(mvm, vif); 3967 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3968 goto out_unlock; 3969 3970 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3971 goto schedule_time_event; 3972 } 3973 } 3974 3975 /* Need to update the PHY context only if the ROC channel changed */ 3976 if (channel == mvmvif->phy_ctxt->channel) 3977 goto schedule_time_event; 3978 3979 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3980 3981 /* 3982 * Check if the remain-on-channel is on a different band and that 3983 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 3984 * so, we'll need to release and then re-configure here, since we 3985 * must not remove a PHY context that's part of a binding. 3986 */ 3987 band_change_removal = 3988 fw_has_capa(&mvm->fw->ucode_capa, 3989 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 3990 mvmvif->phy_ctxt->channel->band != chandef.chan->band; 3991 3992 if (mvmvif->phy_ctxt->ref == 1 && !band_change_removal) { 3993 /* 3994 * Change the PHY context configuration as it is currently 3995 * referenced only by the P2P Device MAC (and we can modify it) 3996 */ 3997 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3998 &chandef, 1, 1); 3999 if (ret) 4000 goto out_unlock; 4001 } else { 4002 /* 4003 * The PHY context is shared with other MACs (or we're trying to 4004 * switch bands), so remove the P2P Device from the binding, 4005 * allocate an new PHY context and create a new binding. 4006 */ 4007 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4008 if (!phy_ctxt) { 4009 ret = -ENOSPC; 4010 goto out_unlock; 4011 } 4012 4013 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4014 1, 1); 4015 if (ret) { 4016 IWL_ERR(mvm, "Failed to change PHY context\n"); 4017 goto out_unlock; 4018 } 4019 4020 /* Unbind the P2P_DEVICE from the current PHY context */ 4021 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4022 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4023 goto out_unlock; 4024 4025 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4026 4027 /* Bind the P2P_DEVICE to the new allocated PHY context */ 4028 mvmvif->phy_ctxt = phy_ctxt; 4029 4030 ret = iwl_mvm_binding_add_vif(mvm, vif); 4031 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4032 goto out_unlock; 4033 4034 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4035 } 4036 4037 schedule_time_event: 4038 /* Schedule the time events */ 4039 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4040 4041 out_unlock: 4042 mutex_unlock(&mvm->mutex); 4043 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4044 return ret; 4045 } 4046 4047 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4048 struct ieee80211_vif *vif) 4049 { 4050 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4051 4052 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4053 4054 mutex_lock(&mvm->mutex); 4055 iwl_mvm_stop_roc(mvm, vif); 4056 mutex_unlock(&mvm->mutex); 4057 4058 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4059 return 0; 4060 } 4061 4062 struct iwl_mvm_ftm_responder_iter_data { 4063 bool responder; 4064 struct ieee80211_chanctx_conf *ctx; 4065 }; 4066 4067 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4068 struct ieee80211_vif *vif) 4069 { 4070 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4071 4072 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && 4073 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4074 data->responder = true; 4075 } 4076 4077 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4078 struct ieee80211_chanctx_conf *ctx) 4079 { 4080 struct iwl_mvm_ftm_responder_iter_data data = { 4081 .responder = false, 4082 .ctx = ctx, 4083 }; 4084 4085 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4086 IEEE80211_IFACE_ITER_NORMAL, 4087 iwl_mvm_ftm_responder_chanctx_iter, 4088 &data); 4089 return data.responder; 4090 } 4091 4092 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4093 struct ieee80211_chanctx_conf *ctx) 4094 { 4095 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4096 struct iwl_mvm_phy_ctxt *phy_ctxt; 4097 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4098 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4099 int ret; 4100 4101 lockdep_assert_held(&mvm->mutex); 4102 4103 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4104 4105 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4106 if (!phy_ctxt) { 4107 ret = -ENOSPC; 4108 goto out; 4109 } 4110 4111 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4112 ctx->rx_chains_static, 4113 ctx->rx_chains_dynamic); 4114 if (ret) { 4115 IWL_ERR(mvm, "Failed to add PHY context\n"); 4116 goto out; 4117 } 4118 4119 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4120 *phy_ctxt_id = phy_ctxt->id; 4121 out: 4122 return ret; 4123 } 4124 4125 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4126 struct ieee80211_chanctx_conf *ctx) 4127 { 4128 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4129 int ret; 4130 4131 mutex_lock(&mvm->mutex); 4132 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4133 mutex_unlock(&mvm->mutex); 4134 4135 return ret; 4136 } 4137 4138 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4139 struct ieee80211_chanctx_conf *ctx) 4140 { 4141 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4142 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4143 4144 lockdep_assert_held(&mvm->mutex); 4145 4146 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4147 } 4148 4149 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4150 struct ieee80211_chanctx_conf *ctx) 4151 { 4152 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4153 4154 mutex_lock(&mvm->mutex); 4155 __iwl_mvm_remove_chanctx(mvm, ctx); 4156 mutex_unlock(&mvm->mutex); 4157 } 4158 4159 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4160 struct ieee80211_chanctx_conf *ctx, 4161 u32 changed) 4162 { 4163 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4164 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4165 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4166 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4167 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4168 4169 if (WARN_ONCE((phy_ctxt->ref > 1) && 4170 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4171 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4172 IEEE80211_CHANCTX_CHANGE_RADAR | 4173 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4174 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4175 phy_ctxt->ref, changed)) 4176 return; 4177 4178 mutex_lock(&mvm->mutex); 4179 4180 /* we are only changing the min_width, may be a noop */ 4181 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4182 if (phy_ctxt->width == def->width) 4183 goto out_unlock; 4184 4185 /* we are just toggling between 20_NOHT and 20 */ 4186 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4187 def->width <= NL80211_CHAN_WIDTH_20) 4188 goto out_unlock; 4189 } 4190 4191 iwl_mvm_bt_coex_vif_change(mvm); 4192 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4193 ctx->rx_chains_static, 4194 ctx->rx_chains_dynamic); 4195 4196 out_unlock: 4197 mutex_unlock(&mvm->mutex); 4198 } 4199 4200 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4201 struct ieee80211_vif *vif, 4202 struct ieee80211_chanctx_conf *ctx, 4203 bool switching_chanctx) 4204 { 4205 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4206 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4207 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4208 int ret; 4209 4210 lockdep_assert_held(&mvm->mutex); 4211 4212 mvmvif->phy_ctxt = phy_ctxt; 4213 4214 switch (vif->type) { 4215 case NL80211_IFTYPE_AP: 4216 /* only needed if we're switching chanctx (i.e. during CSA) */ 4217 if (switching_chanctx) { 4218 mvmvif->ap_ibss_active = true; 4219 break; 4220 } 4221 fallthrough; 4222 case NL80211_IFTYPE_ADHOC: 4223 /* 4224 * The AP binding flow is handled as part of the start_ap flow 4225 * (in bss_info_changed), similarly for IBSS. 4226 */ 4227 ret = 0; 4228 goto out; 4229 case NL80211_IFTYPE_STATION: 4230 mvmvif->csa_bcn_pending = false; 4231 break; 4232 case NL80211_IFTYPE_MONITOR: 4233 /* always disable PS when a monitor interface is active */ 4234 mvmvif->ps_disabled = true; 4235 break; 4236 default: 4237 ret = -EINVAL; 4238 goto out; 4239 } 4240 4241 ret = iwl_mvm_binding_add_vif(mvm, vif); 4242 if (ret) 4243 goto out; 4244 4245 /* 4246 * Power state must be updated before quotas, 4247 * otherwise fw will complain. 4248 */ 4249 iwl_mvm_power_update_mac(mvm); 4250 4251 /* Setting the quota at this stage is only required for monitor 4252 * interfaces. For the other types, the bss_info changed flow 4253 * will handle quota settings. 4254 */ 4255 if (vif->type == NL80211_IFTYPE_MONITOR) { 4256 mvmvif->monitor_active = true; 4257 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4258 if (ret) 4259 goto out_remove_binding; 4260 4261 ret = iwl_mvm_add_snif_sta(mvm, vif); 4262 if (ret) 4263 goto out_remove_binding; 4264 4265 } 4266 4267 /* Handle binding during CSA */ 4268 if (vif->type == NL80211_IFTYPE_AP) { 4269 iwl_mvm_update_quotas(mvm, false, NULL); 4270 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4271 } 4272 4273 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4274 mvmvif->csa_bcn_pending = true; 4275 4276 if (!fw_has_capa(&mvm->fw->ucode_capa, 4277 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4278 u32 duration = 3 * vif->bss_conf.beacon_int; 4279 4280 /* Protect the session to make sure we hear the first 4281 * beacon on the new channel. 4282 */ 4283 iwl_mvm_protect_session(mvm, vif, duration, duration, 4284 vif->bss_conf.beacon_int / 2, 4285 true); 4286 } 4287 4288 iwl_mvm_update_quotas(mvm, false, NULL); 4289 } 4290 4291 goto out; 4292 4293 out_remove_binding: 4294 iwl_mvm_binding_remove_vif(mvm, vif); 4295 iwl_mvm_power_update_mac(mvm); 4296 out: 4297 if (ret) 4298 mvmvif->phy_ctxt = NULL; 4299 return ret; 4300 } 4301 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4302 struct ieee80211_vif *vif, 4303 struct ieee80211_bss_conf *link_conf, 4304 struct ieee80211_chanctx_conf *ctx) 4305 { 4306 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4307 int ret; 4308 4309 mutex_lock(&mvm->mutex); 4310 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4311 mutex_unlock(&mvm->mutex); 4312 4313 return ret; 4314 } 4315 4316 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4317 struct ieee80211_vif *vif, 4318 struct ieee80211_chanctx_conf *ctx, 4319 bool switching_chanctx) 4320 { 4321 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4322 struct ieee80211_vif *disabled_vif = NULL; 4323 4324 lockdep_assert_held(&mvm->mutex); 4325 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4326 4327 switch (vif->type) { 4328 case NL80211_IFTYPE_ADHOC: 4329 goto out; 4330 case NL80211_IFTYPE_MONITOR: 4331 mvmvif->monitor_active = false; 4332 mvmvif->ps_disabled = false; 4333 iwl_mvm_rm_snif_sta(mvm, vif); 4334 break; 4335 case NL80211_IFTYPE_AP: 4336 /* This part is triggered only during CSA */ 4337 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4338 goto out; 4339 4340 mvmvif->csa_countdown = false; 4341 4342 /* Set CS bit on all the stations */ 4343 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4344 4345 /* Save blocked iface, the timeout is set on the next beacon */ 4346 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4347 4348 mvmvif->ap_ibss_active = false; 4349 break; 4350 case NL80211_IFTYPE_STATION: 4351 if (!switching_chanctx) 4352 break; 4353 4354 disabled_vif = vif; 4355 4356 if (!fw_has_capa(&mvm->fw->ucode_capa, 4357 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4358 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4359 break; 4360 default: 4361 break; 4362 } 4363 4364 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4365 iwl_mvm_binding_remove_vif(mvm, vif); 4366 4367 out: 4368 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 4369 switching_chanctx) 4370 return; 4371 mvmvif->phy_ctxt = NULL; 4372 iwl_mvm_power_update_mac(mvm); 4373 } 4374 4375 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4376 struct ieee80211_vif *vif, 4377 struct ieee80211_bss_conf *link_conf, 4378 struct ieee80211_chanctx_conf *ctx) 4379 { 4380 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4381 4382 mutex_lock(&mvm->mutex); 4383 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4384 mutex_unlock(&mvm->mutex); 4385 } 4386 4387 static int 4388 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4389 struct ieee80211_vif_chanctx_switch *vifs) 4390 { 4391 int ret; 4392 4393 mutex_lock(&mvm->mutex); 4394 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4395 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4396 4397 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4398 if (ret) { 4399 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4400 goto out_reassign; 4401 } 4402 4403 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4404 true); 4405 if (ret) { 4406 IWL_ERR(mvm, 4407 "failed to assign new_ctx during channel switch\n"); 4408 goto out_remove; 4409 } 4410 4411 /* we don't support TDLS during DCM - can be caused by channel switch */ 4412 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4413 iwl_mvm_teardown_tdls_peers(mvm); 4414 4415 goto out; 4416 4417 out_remove: 4418 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4419 4420 out_reassign: 4421 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4422 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4423 goto out_restart; 4424 } 4425 4426 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4427 true)) { 4428 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4429 goto out_restart; 4430 } 4431 4432 goto out; 4433 4434 out_restart: 4435 /* things keep failing, better restart the hw */ 4436 iwl_mvm_nic_restart(mvm, false); 4437 4438 out: 4439 mutex_unlock(&mvm->mutex); 4440 4441 return ret; 4442 } 4443 4444 static int 4445 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4446 struct ieee80211_vif_chanctx_switch *vifs) 4447 { 4448 int ret; 4449 4450 mutex_lock(&mvm->mutex); 4451 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4452 4453 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4454 true); 4455 if (ret) { 4456 IWL_ERR(mvm, 4457 "failed to assign new_ctx during channel switch\n"); 4458 goto out_reassign; 4459 } 4460 4461 goto out; 4462 4463 out_reassign: 4464 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4465 true)) { 4466 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4467 goto out_restart; 4468 } 4469 4470 goto out; 4471 4472 out_restart: 4473 /* things keep failing, better restart the hw */ 4474 iwl_mvm_nic_restart(mvm, false); 4475 4476 out: 4477 mutex_unlock(&mvm->mutex); 4478 4479 return ret; 4480 } 4481 4482 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4483 struct ieee80211_vif_chanctx_switch *vifs, 4484 int n_vifs, 4485 enum ieee80211_chanctx_switch_mode mode) 4486 { 4487 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4488 int ret; 4489 4490 /* we only support a single-vif right now */ 4491 if (n_vifs > 1) 4492 return -EOPNOTSUPP; 4493 4494 switch (mode) { 4495 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4496 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4497 break; 4498 case CHANCTX_SWMODE_REASSIGN_VIF: 4499 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4500 break; 4501 default: 4502 ret = -EOPNOTSUPP; 4503 break; 4504 } 4505 4506 return ret; 4507 } 4508 4509 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4510 { 4511 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4512 4513 return mvm->ibss_manager; 4514 } 4515 4516 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4517 struct ieee80211_sta *sta, 4518 bool set) 4519 { 4520 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4521 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4522 4523 if (!mvm_sta || !mvm_sta->vif) { 4524 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4525 return -EINVAL; 4526 } 4527 4528 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4529 } 4530 4531 #ifdef CONFIG_NL80211_TESTMODE 4532 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4533 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4534 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4535 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4536 }; 4537 4538 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4539 struct ieee80211_vif *vif, 4540 void *data, int len) 4541 { 4542 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4543 int err; 4544 u32 noa_duration; 4545 4546 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4547 iwl_mvm_tm_policy, NULL); 4548 if (err) 4549 return err; 4550 4551 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4552 return -EINVAL; 4553 4554 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4555 case IWL_MVM_TM_CMD_SET_NOA: 4556 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4557 !vif->bss_conf.enable_beacon || 4558 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4559 return -EINVAL; 4560 4561 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4562 if (noa_duration >= vif->bss_conf.beacon_int) 4563 return -EINVAL; 4564 4565 mvm->noa_duration = noa_duration; 4566 mvm->noa_vif = vif; 4567 4568 return iwl_mvm_update_quotas(mvm, true, NULL); 4569 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4570 /* must be associated client vif - ignore authorized */ 4571 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4572 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4573 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4574 return -EINVAL; 4575 4576 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4577 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4578 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4579 } 4580 4581 return -EOPNOTSUPP; 4582 } 4583 4584 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4585 struct ieee80211_vif *vif, 4586 void *data, int len) 4587 { 4588 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4589 int err; 4590 4591 mutex_lock(&mvm->mutex); 4592 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4593 mutex_unlock(&mvm->mutex); 4594 4595 return err; 4596 } 4597 #endif 4598 4599 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4600 struct ieee80211_vif *vif, 4601 struct ieee80211_channel_switch *chsw) 4602 { 4603 /* By implementing this operation, we prevent mac80211 from 4604 * starting its own channel switch timer, so that we can call 4605 * ieee80211_chswitch_done() ourselves at the right time 4606 * (which is when the absence time event starts). 4607 */ 4608 4609 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4610 "dummy channel switch op\n"); 4611 } 4612 4613 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4614 struct ieee80211_vif *vif, 4615 struct ieee80211_channel_switch *chsw) 4616 { 4617 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4618 struct iwl_chan_switch_te_cmd cmd = { 4619 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4620 mvmvif->color)), 4621 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4622 .tsf = cpu_to_le32(chsw->timestamp), 4623 .cs_count = chsw->count, 4624 .cs_mode = chsw->block_tx, 4625 }; 4626 4627 lockdep_assert_held(&mvm->mutex); 4628 4629 if (chsw->delay) 4630 cmd.cs_delayed_bcn_count = 4631 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4632 4633 return iwl_mvm_send_cmd_pdu(mvm, 4634 WIDE_ID(MAC_CONF_GROUP, 4635 CHANNEL_SWITCH_TIME_EVENT_CMD), 4636 0, sizeof(cmd), &cmd); 4637 } 4638 4639 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4640 struct ieee80211_vif *vif, 4641 struct ieee80211_channel_switch *chsw) 4642 { 4643 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4644 u32 apply_time; 4645 4646 /* Schedule the time event to a bit before beacon 1, 4647 * to make sure we're in the new channel when the 4648 * GO/AP arrives. In case count <= 1 immediately schedule the 4649 * TE (this might result with some packet loss or connection 4650 * loss). 4651 */ 4652 if (chsw->count <= 1) 4653 apply_time = 0; 4654 else 4655 apply_time = chsw->device_timestamp + 4656 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4657 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4658 4659 if (chsw->block_tx) 4660 iwl_mvm_csa_client_absent(mvm, vif); 4661 4662 if (mvmvif->bf_data.bf_enabled) { 4663 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4664 4665 if (ret) 4666 return ret; 4667 } 4668 4669 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4670 apply_time); 4671 4672 return 0; 4673 } 4674 4675 #define IWL_MAX_CSA_BLOCK_TX 1500 4676 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4677 struct ieee80211_vif *vif, 4678 struct ieee80211_channel_switch *chsw) 4679 { 4680 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4681 struct ieee80211_vif *csa_vif; 4682 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4683 int ret; 4684 4685 mutex_lock(&mvm->mutex); 4686 4687 mvmvif->csa_failed = false; 4688 4689 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4690 chsw->chandef.center_freq1); 4691 4692 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4693 ieee80211_vif_to_wdev(vif), 4694 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4695 4696 switch (vif->type) { 4697 case NL80211_IFTYPE_AP: 4698 csa_vif = 4699 rcu_dereference_protected(mvm->csa_vif, 4700 lockdep_is_held(&mvm->mutex)); 4701 if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4702 "Another CSA is already in progress")) { 4703 ret = -EBUSY; 4704 goto out_unlock; 4705 } 4706 4707 /* we still didn't unblock tx. prevent new CS meanwhile */ 4708 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4709 lockdep_is_held(&mvm->mutex))) { 4710 ret = -EBUSY; 4711 goto out_unlock; 4712 } 4713 4714 rcu_assign_pointer(mvm->csa_vif, vif); 4715 4716 if (WARN_ONCE(mvmvif->csa_countdown, 4717 "Previous CSA countdown didn't complete")) { 4718 ret = -EBUSY; 4719 goto out_unlock; 4720 } 4721 4722 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4723 4724 break; 4725 case NL80211_IFTYPE_STATION: 4726 /* 4727 * In the new flow FW is in charge of timing the switch so there 4728 * is no need for all of this 4729 */ 4730 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4731 CHANNEL_SWITCH_ERROR_NOTIF, 4732 0)) 4733 break; 4734 4735 /* 4736 * We haven't configured the firmware to be associated yet since 4737 * we don't know the dtim period. In this case, the firmware can't 4738 * track the beacons. 4739 */ 4740 if (!vif->bss_conf.assoc || !vif->bss_conf.dtim_period) { 4741 ret = -EBUSY; 4742 goto out_unlock; 4743 } 4744 4745 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 4746 schedule_delayed_work(&mvmvif->csa_work, 0); 4747 4748 if (chsw->block_tx) { 4749 /* 4750 * In case of undetermined / long time with immediate 4751 * quiet monitor status to gracefully disconnect 4752 */ 4753 if (!chsw->count || 4754 chsw->count * vif->bss_conf.beacon_int > 4755 IWL_MAX_CSA_BLOCK_TX) 4756 schedule_delayed_work(&mvmvif->csa_work, 4757 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4758 } 4759 4760 if (!fw_has_capa(&mvm->fw->ucode_capa, 4761 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4762 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4763 if (ret) 4764 goto out_unlock; 4765 } else { 4766 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4767 } 4768 4769 mvmvif->csa_count = chsw->count; 4770 mvmvif->csa_misbehave = false; 4771 break; 4772 default: 4773 break; 4774 } 4775 4776 mvmvif->ps_disabled = true; 4777 4778 ret = iwl_mvm_power_update_ps(mvm); 4779 if (ret) 4780 goto out_unlock; 4781 4782 /* we won't be on this channel any longer */ 4783 iwl_mvm_teardown_tdls_peers(mvm); 4784 4785 out_unlock: 4786 mutex_unlock(&mvm->mutex); 4787 4788 return ret; 4789 } 4790 4791 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4792 struct ieee80211_vif *vif, 4793 struct ieee80211_channel_switch *chsw) 4794 { 4795 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4796 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4797 struct iwl_chan_switch_te_cmd cmd = { 4798 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4799 mvmvif->color)), 4800 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4801 .tsf = cpu_to_le32(chsw->timestamp), 4802 .cs_count = chsw->count, 4803 .cs_mode = chsw->block_tx, 4804 }; 4805 4806 /* 4807 * In the new flow FW is in charge of timing the switch so there is no 4808 * need for all of this 4809 */ 4810 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4811 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 4812 return; 4813 4814 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4815 return; 4816 4817 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 4818 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 4819 4820 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4821 if (mvmvif->csa_misbehave) { 4822 /* Second time, give up on this AP*/ 4823 iwl_mvm_abort_channel_switch(hw, vif); 4824 ieee80211_chswitch_done(vif, false); 4825 mvmvif->csa_misbehave = false; 4826 return; 4827 } 4828 mvmvif->csa_misbehave = true; 4829 } 4830 mvmvif->csa_count = chsw->count; 4831 4832 mutex_lock(&mvm->mutex); 4833 if (mvmvif->csa_failed) 4834 goto out_unlock; 4835 4836 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4837 WIDE_ID(MAC_CONF_GROUP, 4838 CHANNEL_SWITCH_TIME_EVENT_CMD), 4839 0, sizeof(cmd), &cmd)); 4840 out_unlock: 4841 mutex_unlock(&mvm->mutex); 4842 } 4843 4844 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4845 { 4846 int i; 4847 4848 if (!iwl_mvm_has_new_tx_api(mvm)) { 4849 if (drop) { 4850 mutex_lock(&mvm->mutex); 4851 iwl_mvm_flush_tx_path(mvm, 4852 iwl_mvm_flushable_queues(mvm) & queues); 4853 mutex_unlock(&mvm->mutex); 4854 } else { 4855 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4856 } 4857 return; 4858 } 4859 4860 mutex_lock(&mvm->mutex); 4861 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4862 struct ieee80211_sta *sta; 4863 4864 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4865 lockdep_is_held(&mvm->mutex)); 4866 if (IS_ERR_OR_NULL(sta)) 4867 continue; 4868 4869 if (drop) 4870 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 4871 else 4872 iwl_mvm_wait_sta_queues_empty(mvm, 4873 iwl_mvm_sta_from_mac80211(sta)); 4874 } 4875 mutex_unlock(&mvm->mutex); 4876 } 4877 4878 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4879 struct ieee80211_vif *vif, u32 queues, bool drop) 4880 { 4881 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4882 struct iwl_mvm_vif *mvmvif; 4883 struct iwl_mvm_sta *mvmsta; 4884 struct ieee80211_sta *sta; 4885 int i; 4886 u32 msk = 0; 4887 4888 if (!vif) { 4889 iwl_mvm_flush_no_vif(mvm, queues, drop); 4890 return; 4891 } 4892 4893 if (vif->type != NL80211_IFTYPE_STATION) 4894 return; 4895 4896 /* Make sure we're done with the deferred traffic before flushing */ 4897 flush_work(&mvm->add_stream_wk); 4898 4899 mutex_lock(&mvm->mutex); 4900 mvmvif = iwl_mvm_vif_from_mac80211(vif); 4901 4902 /* flush the AP-station and all TDLS peers */ 4903 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4904 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4905 lockdep_is_held(&mvm->mutex)); 4906 if (IS_ERR_OR_NULL(sta)) 4907 continue; 4908 4909 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4910 if (mvmsta->vif != vif) 4911 continue; 4912 4913 /* make sure only TDLS peers or the AP are flushed */ 4914 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4915 4916 if (drop) { 4917 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 4918 IWL_ERR(mvm, "flush request fail\n"); 4919 } else { 4920 msk |= mvmsta->tfd_queue_msk; 4921 if (iwl_mvm_has_new_tx_api(mvm)) 4922 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4923 } 4924 } 4925 4926 mutex_unlock(&mvm->mutex); 4927 4928 /* this can take a while, and we may need/want other operations 4929 * to succeed while doing this, so do it without the mutex held 4930 */ 4931 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4932 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4933 } 4934 4935 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4936 struct survey_info *survey) 4937 { 4938 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4939 int ret; 4940 4941 memset(survey, 0, sizeof(*survey)); 4942 4943 /* only support global statistics right now */ 4944 if (idx != 0) 4945 return -ENOENT; 4946 4947 if (!fw_has_capa(&mvm->fw->ucode_capa, 4948 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4949 return -ENOENT; 4950 4951 mutex_lock(&mvm->mutex); 4952 4953 if (iwl_mvm_firmware_running(mvm)) { 4954 ret = iwl_mvm_request_statistics(mvm, false); 4955 if (ret) 4956 goto out; 4957 } 4958 4959 survey->filled = SURVEY_INFO_TIME | 4960 SURVEY_INFO_TIME_RX | 4961 SURVEY_INFO_TIME_TX | 4962 SURVEY_INFO_TIME_SCAN; 4963 survey->time = mvm->accu_radio_stats.on_time_rf + 4964 mvm->radio_stats.on_time_rf; 4965 do_div(survey->time, USEC_PER_MSEC); 4966 4967 survey->time_rx = mvm->accu_radio_stats.rx_time + 4968 mvm->radio_stats.rx_time; 4969 do_div(survey->time_rx, USEC_PER_MSEC); 4970 4971 survey->time_tx = mvm->accu_radio_stats.tx_time + 4972 mvm->radio_stats.tx_time; 4973 do_div(survey->time_tx, USEC_PER_MSEC); 4974 4975 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4976 mvm->radio_stats.on_time_scan; 4977 do_div(survey->time_scan, USEC_PER_MSEC); 4978 4979 ret = 0; 4980 out: 4981 mutex_unlock(&mvm->mutex); 4982 return ret; 4983 } 4984 4985 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 4986 { 4987 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 4988 4989 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 4990 case RATE_MCS_CHAN_WIDTH_20: 4991 rinfo->bw = RATE_INFO_BW_20; 4992 break; 4993 case RATE_MCS_CHAN_WIDTH_40: 4994 rinfo->bw = RATE_INFO_BW_40; 4995 break; 4996 case RATE_MCS_CHAN_WIDTH_80: 4997 rinfo->bw = RATE_INFO_BW_80; 4998 break; 4999 case RATE_MCS_CHAN_WIDTH_160: 5000 rinfo->bw = RATE_INFO_BW_160; 5001 break; 5002 } 5003 5004 if (format == RATE_MCS_CCK_MSK || 5005 format == RATE_MCS_LEGACY_OFDM_MSK) { 5006 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5007 5008 /* add the offset needed to get to the legacy ofdm indices */ 5009 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5010 rate += IWL_FIRST_OFDM_RATE; 5011 5012 switch (rate) { 5013 case IWL_RATE_1M_INDEX: 5014 rinfo->legacy = 10; 5015 break; 5016 case IWL_RATE_2M_INDEX: 5017 rinfo->legacy = 20; 5018 break; 5019 case IWL_RATE_5M_INDEX: 5020 rinfo->legacy = 55; 5021 break; 5022 case IWL_RATE_11M_INDEX: 5023 rinfo->legacy = 110; 5024 break; 5025 case IWL_RATE_6M_INDEX: 5026 rinfo->legacy = 60; 5027 break; 5028 case IWL_RATE_9M_INDEX: 5029 rinfo->legacy = 90; 5030 break; 5031 case IWL_RATE_12M_INDEX: 5032 rinfo->legacy = 120; 5033 break; 5034 case IWL_RATE_18M_INDEX: 5035 rinfo->legacy = 180; 5036 break; 5037 case IWL_RATE_24M_INDEX: 5038 rinfo->legacy = 240; 5039 break; 5040 case IWL_RATE_36M_INDEX: 5041 rinfo->legacy = 360; 5042 break; 5043 case IWL_RATE_48M_INDEX: 5044 rinfo->legacy = 480; 5045 break; 5046 case IWL_RATE_54M_INDEX: 5047 rinfo->legacy = 540; 5048 } 5049 return; 5050 } 5051 5052 rinfo->nss = u32_get_bits(rate_n_flags, 5053 RATE_MCS_NSS_MSK) + 1; 5054 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5055 RATE_HT_MCS_INDEX(rate_n_flags) : 5056 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5057 5058 if (format == RATE_MCS_HE_MSK) { 5059 u32 gi_ltf = u32_get_bits(rate_n_flags, 5060 RATE_MCS_HE_GI_LTF_MSK); 5061 5062 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5063 5064 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5065 rinfo->bw = RATE_INFO_BW_HE_RU; 5066 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5067 } 5068 5069 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5070 case RATE_MCS_HE_TYPE_SU: 5071 case RATE_MCS_HE_TYPE_EXT_SU: 5072 if (gi_ltf == 0 || gi_ltf == 1) 5073 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5074 else if (gi_ltf == 2) 5075 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5076 else if (gi_ltf == 3) 5077 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5078 else 5079 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5080 break; 5081 case RATE_MCS_HE_TYPE_MU: 5082 if (gi_ltf == 0 || gi_ltf == 1) 5083 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5084 else if (gi_ltf == 2) 5085 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5086 else 5087 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5088 break; 5089 case RATE_MCS_HE_TYPE_TRIG: 5090 if (gi_ltf == 0 || gi_ltf == 1) 5091 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5092 else 5093 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5094 break; 5095 } 5096 5097 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5098 rinfo->he_dcm = 1; 5099 return; 5100 } 5101 5102 if (rate_n_flags & RATE_MCS_SGI_MSK) 5103 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5104 5105 if (format == RATE_MCS_HT_MSK) { 5106 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5107 5108 } else if (format == RATE_MCS_VHT_MSK) { 5109 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5110 } 5111 5112 } 5113 5114 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5115 struct ieee80211_vif *vif, 5116 struct ieee80211_sta *sta, 5117 struct station_info *sinfo) 5118 { 5119 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5120 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5121 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5122 5123 if (mvmsta->avg_energy) { 5124 sinfo->signal_avg = -(s8)mvmsta->avg_energy; 5125 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5126 } 5127 5128 if (iwl_mvm_has_tlc_offload(mvm)) { 5129 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 5130 5131 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5132 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5133 } 5134 5135 /* if beacon filtering isn't on mac80211 does it anyway */ 5136 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5137 return; 5138 5139 if (!vif->bss_conf.assoc) 5140 return; 5141 5142 mutex_lock(&mvm->mutex); 5143 5144 if (mvmvif->ap_sta_id != mvmsta->sta_id) 5145 goto unlock; 5146 5147 if (iwl_mvm_request_statistics(mvm, false)) 5148 goto unlock; 5149 5150 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 5151 mvmvif->beacon_stats.accu_num_beacons; 5152 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5153 if (mvmvif->beacon_stats.avg_signal) { 5154 /* firmware only reports a value after RXing a few beacons */ 5155 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 5156 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5157 } 5158 unlock: 5159 mutex_unlock(&mvm->mutex); 5160 } 5161 5162 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5163 struct ieee80211_vif *vif, 5164 const struct ieee80211_mlme_event *mlme) 5165 { 5166 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5167 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5168 iwl_dbg_tlv_time_point(&mvm->fwrt, 5169 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5170 NULL); 5171 return; 5172 } 5173 5174 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5175 iwl_dbg_tlv_time_point(&mvm->fwrt, 5176 IWL_FW_INI_TIME_POINT_DEASSOC, 5177 NULL); 5178 return; 5179 } 5180 } 5181 5182 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5183 struct ieee80211_vif *vif, 5184 const struct ieee80211_event *event) 5185 { 5186 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5187 do { \ 5188 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5189 break; \ 5190 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5191 } while (0) 5192 5193 struct iwl_fw_dbg_trigger_tlv *trig; 5194 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5195 5196 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5197 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5198 return; 5199 } 5200 5201 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5202 FW_DBG_TRIGGER_MLME); 5203 if (!trig) 5204 return; 5205 5206 trig_mlme = (void *)trig->data; 5207 5208 if (event->u.mlme.data == ASSOC_EVENT) { 5209 if (event->u.mlme.status == MLME_DENIED) 5210 CHECK_MLME_TRIGGER(stop_assoc_denied, 5211 "DENIED ASSOC: reason %d", 5212 event->u.mlme.reason); 5213 else if (event->u.mlme.status == MLME_TIMEOUT) 5214 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5215 "ASSOC TIMEOUT"); 5216 } else if (event->u.mlme.data == AUTH_EVENT) { 5217 if (event->u.mlme.status == MLME_DENIED) 5218 CHECK_MLME_TRIGGER(stop_auth_denied, 5219 "DENIED AUTH: reason %d", 5220 event->u.mlme.reason); 5221 else if (event->u.mlme.status == MLME_TIMEOUT) 5222 CHECK_MLME_TRIGGER(stop_auth_timeout, 5223 "AUTH TIMEOUT"); 5224 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5225 CHECK_MLME_TRIGGER(stop_rx_deauth, 5226 "DEAUTH RX %d", event->u.mlme.reason); 5227 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5228 CHECK_MLME_TRIGGER(stop_tx_deauth, 5229 "DEAUTH TX %d", event->u.mlme.reason); 5230 } 5231 #undef CHECK_MLME_TRIGGER 5232 } 5233 5234 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5235 struct ieee80211_vif *vif, 5236 const struct ieee80211_event *event) 5237 { 5238 struct iwl_fw_dbg_trigger_tlv *trig; 5239 struct iwl_fw_dbg_trigger_ba *ba_trig; 5240 5241 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5242 FW_DBG_TRIGGER_BA); 5243 if (!trig) 5244 return; 5245 5246 ba_trig = (void *)trig->data; 5247 5248 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5249 return; 5250 5251 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5252 "BAR received from %pM, tid %d, ssn %d", 5253 event->u.ba.sta->addr, event->u.ba.tid, 5254 event->u.ba.ssn); 5255 } 5256 5257 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5258 struct ieee80211_vif *vif, 5259 const struct ieee80211_event *event) 5260 { 5261 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5262 5263 switch (event->type) { 5264 case MLME_EVENT: 5265 iwl_mvm_event_mlme_callback(mvm, vif, event); 5266 break; 5267 case BAR_RX_EVENT: 5268 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5269 break; 5270 case BA_FRAME_TIMEOUT: 5271 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5272 event->u.ba.tid); 5273 break; 5274 default: 5275 break; 5276 } 5277 } 5278 5279 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5280 enum iwl_mvm_rxq_notif_type type, 5281 bool sync, 5282 const void *data, u32 size) 5283 { 5284 struct { 5285 struct iwl_rxq_sync_cmd cmd; 5286 struct iwl_mvm_internal_rxq_notif notif; 5287 } __packed cmd = { 5288 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 5289 .cmd.count = 5290 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 5291 size), 5292 .notif.type = type, 5293 .notif.sync = sync, 5294 }; 5295 struct iwl_host_cmd hcmd = { 5296 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 5297 .data[0] = &cmd, 5298 .len[0] = sizeof(cmd), 5299 .data[1] = data, 5300 .len[1] = size, 5301 .flags = sync ? 0 : CMD_ASYNC, 5302 }; 5303 int ret; 5304 5305 /* size must be a multiple of DWORD */ 5306 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 5307 return; 5308 5309 if (!iwl_mvm_has_new_rx_api(mvm)) 5310 return; 5311 5312 if (sync) { 5313 cmd.notif.cookie = mvm->queue_sync_cookie; 5314 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 5315 } 5316 5317 ret = iwl_mvm_send_cmd(mvm, &hcmd); 5318 if (ret) { 5319 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5320 goto out; 5321 } 5322 5323 if (sync) { 5324 lockdep_assert_held(&mvm->mutex); 5325 ret = wait_event_timeout(mvm->rx_sync_waitq, 5326 READ_ONCE(mvm->queue_sync_state) == 0 || 5327 iwl_mvm_is_radio_killed(mvm), 5328 HZ); 5329 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 5330 "queue sync: failed to sync, state is 0x%lx\n", 5331 mvm->queue_sync_state); 5332 } 5333 5334 out: 5335 if (sync) { 5336 mvm->queue_sync_state = 0; 5337 mvm->queue_sync_cookie++; 5338 } 5339 } 5340 5341 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5342 { 5343 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5344 5345 mutex_lock(&mvm->mutex); 5346 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 5347 mutex_unlock(&mvm->mutex); 5348 } 5349 5350 static int 5351 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5352 struct ieee80211_vif *vif, 5353 struct cfg80211_ftm_responder_stats *stats) 5354 { 5355 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5356 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5357 5358 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5359 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5360 return -EINVAL; 5361 5362 mutex_lock(&mvm->mutex); 5363 *stats = mvm->ftm_resp_stats; 5364 mutex_unlock(&mvm->mutex); 5365 5366 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5367 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5368 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5369 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5370 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5371 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5372 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5373 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5374 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5375 5376 return 0; 5377 } 5378 5379 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5380 struct ieee80211_vif *vif, 5381 struct cfg80211_pmsr_request *request) 5382 { 5383 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5384 int ret; 5385 5386 mutex_lock(&mvm->mutex); 5387 ret = iwl_mvm_ftm_start(mvm, vif, request); 5388 mutex_unlock(&mvm->mutex); 5389 5390 return ret; 5391 } 5392 5393 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5394 struct ieee80211_vif *vif, 5395 struct cfg80211_pmsr_request *request) 5396 { 5397 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5398 5399 mutex_lock(&mvm->mutex); 5400 iwl_mvm_ftm_abort(mvm, request); 5401 mutex_unlock(&mvm->mutex); 5402 } 5403 5404 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5405 { 5406 u8 protocol = ip_hdr(skb)->protocol; 5407 5408 if (!IS_ENABLED(CONFIG_INET)) 5409 return false; 5410 5411 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5412 } 5413 5414 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5415 struct sk_buff *head, 5416 struct sk_buff *skb) 5417 { 5418 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5419 5420 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 5421 return iwl_mvm_tx_csum_bz(mvm, head, true) == 5422 iwl_mvm_tx_csum_bz(mvm, skb, true); 5423 5424 /* For now don't aggregate IPv6 in AMSDU */ 5425 if (skb->protocol != htons(ETH_P_IP)) 5426 return false; 5427 5428 if (!iwl_mvm_is_csum_supported(mvm)) 5429 return true; 5430 5431 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5432 } 5433 5434 const struct ieee80211_ops iwl_mvm_hw_ops = { 5435 .tx = iwl_mvm_mac_tx, 5436 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5437 .ampdu_action = iwl_mvm_mac_ampdu_action, 5438 .get_antenna = iwl_mvm_op_get_antenna, 5439 .start = iwl_mvm_mac_start, 5440 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5441 .stop = iwl_mvm_mac_stop, 5442 .add_interface = iwl_mvm_mac_add_interface, 5443 .remove_interface = iwl_mvm_mac_remove_interface, 5444 .config = iwl_mvm_mac_config, 5445 .prepare_multicast = iwl_mvm_prepare_multicast, 5446 .configure_filter = iwl_mvm_configure_filter, 5447 .config_iface_filter = iwl_mvm_config_iface_filter, 5448 .bss_info_changed = iwl_mvm_bss_info_changed, 5449 .hw_scan = iwl_mvm_mac_hw_scan, 5450 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5451 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5452 .sta_state = iwl_mvm_mac_sta_state, 5453 .sta_notify = iwl_mvm_mac_sta_notify, 5454 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5455 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5456 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5457 .sta_rc_update = iwl_mvm_sta_rc_update, 5458 .conf_tx = iwl_mvm_mac_conf_tx, 5459 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5460 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 5461 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5462 .flush = iwl_mvm_mac_flush, 5463 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5464 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5465 .set_key = iwl_mvm_mac_set_key, 5466 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5467 .remain_on_channel = iwl_mvm_roc, 5468 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5469 .add_chanctx = iwl_mvm_add_chanctx, 5470 .remove_chanctx = iwl_mvm_remove_chanctx, 5471 .change_chanctx = iwl_mvm_change_chanctx, 5472 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5473 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5474 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5475 5476 .start_ap = iwl_mvm_start_ap, 5477 .stop_ap = iwl_mvm_stop_ap, 5478 .join_ibss = iwl_mvm_start_ibss, 5479 .leave_ibss = iwl_mvm_stop_ibss, 5480 5481 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5482 5483 .set_tim = iwl_mvm_set_tim, 5484 5485 .channel_switch = iwl_mvm_channel_switch, 5486 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5487 .post_channel_switch = iwl_mvm_post_channel_switch, 5488 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5489 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5490 5491 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5492 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5493 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5494 5495 .event_callback = iwl_mvm_mac_event_callback, 5496 5497 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5498 5499 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5500 5501 #ifdef CONFIG_PM_SLEEP 5502 /* look at d3.c */ 5503 .suspend = iwl_mvm_suspend, 5504 .resume = iwl_mvm_resume, 5505 .set_wakeup = iwl_mvm_set_wakeup, 5506 .set_rekey_data = iwl_mvm_set_rekey_data, 5507 #if IS_ENABLED(CONFIG_IPV6) 5508 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5509 #endif 5510 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5511 #endif 5512 .get_survey = iwl_mvm_mac_get_survey, 5513 .sta_statistics = iwl_mvm_mac_sta_statistics, 5514 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5515 .start_pmsr = iwl_mvm_start_pmsr, 5516 .abort_pmsr = iwl_mvm_abort_pmsr, 5517 5518 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5519 #ifdef CONFIG_IWLWIFI_DEBUGFS 5520 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5521 #endif 5522 };
Cache object: 275aa09bf9275439b842dca0be7562dd
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