1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-eeprom-parse.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_STATION), 37 }, 38 { 39 .max = 1, 40 .types = BIT(NL80211_IFTYPE_AP) | 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | 42 BIT(NL80211_IFTYPE_P2P_GO), 43 }, 44 { 45 .max = 1, 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 47 }, 48 }; 49 50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 51 { 52 .num_different_channels = 2, 53 .max_interfaces = 3, 54 .limits = iwl_mvm_limits, 55 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 56 }, 57 }; 58 59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 60 .max_peers = IWL_MVM_TOF_MAX_APS, 61 .report_ap_tsf = 1, 62 .randomize_mac_addr = 1, 63 64 .ftm = { 65 .supported = 1, 66 .asap = 1, 67 .non_asap = 1, 68 .request_lci = 1, 69 .request_civicloc = 1, 70 .trigger_based = 1, 71 .non_trigger_based = 1, 72 .max_bursts_exponent = -1, /* all supported */ 73 .max_ftms_per_burst = 0, /* no limits */ 74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80) | 78 BIT(NL80211_CHAN_WIDTH_160), 79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 80 BIT(NL80211_PREAMBLE_HT) | 81 BIT(NL80211_PREAMBLE_VHT) | 82 BIT(NL80211_PREAMBLE_HE), 83 }, 84 }; 85 86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 87 enum set_key_cmd cmd, 88 struct ieee80211_vif *vif, 89 struct ieee80211_sta *sta, 90 struct ieee80211_key_conf *key); 91 92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 93 { 94 int i; 95 96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 97 for (i = 0; i < NUM_PHY_CTX; i++) { 98 mvm->phy_ctxts[i].id = i; 99 mvm->phy_ctxts[i].ref = 0; 100 } 101 } 102 103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 104 const char *alpha2, 105 enum iwl_mcc_source src_id, 106 bool *changed) 107 { 108 struct ieee80211_regdomain *regd = NULL; 109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 111 struct iwl_mcc_update_resp *resp; 112 u8 resp_ver; 113 114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 115 116 lockdep_assert_held(&mvm->mutex); 117 118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 119 if (IS_ERR_OR_NULL(resp)) { 120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 121 PTR_ERR_OR_ZERO(resp)); 122 resp = NULL; 123 goto out; 124 } 125 126 if (changed) { 127 u32 status = le32_to_cpu(resp->status); 128 129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 130 status == MCC_RESP_ILLEGAL); 131 } 132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 133 MCC_UPDATE_CMD, 0); 134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 135 136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 137 __le32_to_cpu(resp->n_channels), 138 resp->channels, 139 __le16_to_cpu(resp->mcc), 140 __le16_to_cpu(resp->geo_info), 141 __le16_to_cpu(resp->cap), resp_ver); 142 /* Store the return source id */ 143 src_id = resp->source_id; 144 if (IS_ERR_OR_NULL(regd)) { 145 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 146 PTR_ERR_OR_ZERO(regd)); 147 goto out; 148 } 149 150 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 151 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 152 mvm->lar_regdom_set = true; 153 mvm->mcc_src = src_id; 154 155 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 156 157 out: 158 kfree(resp); 159 return regd; 160 } 161 162 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 163 { 164 bool changed; 165 struct ieee80211_regdomain *regd; 166 167 if (!iwl_mvm_is_lar_supported(mvm)) 168 return; 169 170 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 171 if (!IS_ERR_OR_NULL(regd)) { 172 /* only update the regulatory core if changed */ 173 if (changed) 174 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 175 176 kfree(regd); 177 } 178 } 179 180 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 181 bool *changed) 182 { 183 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 184 iwl_mvm_is_wifi_mcc_supported(mvm) ? 185 MCC_SOURCE_GET_CURRENT : 186 MCC_SOURCE_OLD_FW, changed); 187 } 188 189 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 190 { 191 enum iwl_mcc_source used_src; 192 struct ieee80211_regdomain *regd; 193 int ret; 194 bool changed; 195 const struct ieee80211_regdomain *r = 196 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 197 198 if (!r) 199 return -ENOENT; 200 201 /* save the last source in case we overwrite it below */ 202 used_src = mvm->mcc_src; 203 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 204 /* Notify the firmware we support wifi location updates */ 205 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 206 if (!IS_ERR_OR_NULL(regd)) 207 kfree(regd); 208 } 209 210 /* Now set our last stored MCC and source */ 211 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 212 &changed); 213 if (IS_ERR_OR_NULL(regd)) 214 return -EIO; 215 216 /* update cfg80211 if the regdomain was changed */ 217 if (changed) 218 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 219 else 220 ret = 0; 221 222 kfree(regd); 223 return ret; 224 } 225 226 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 227 static const u8 he_if_types_ext_capa_sta[] = { 228 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 229 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 230 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 231 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 232 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 233 }; 234 235 static const u8 tm_if_types_ext_capa_sta[] = { 236 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 237 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 238 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 239 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 240 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 241 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 242 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 243 }; 244 245 /* Additional interface types for which extended capabilities are 246 * specified separately 247 */ 248 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 249 { 250 .iftype = NL80211_IFTYPE_STATION, 251 .extended_capabilities = he_if_types_ext_capa_sta, 252 .extended_capabilities_mask = he_if_types_ext_capa_sta, 253 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 254 }, 255 { 256 .iftype = NL80211_IFTYPE_STATION, 257 .extended_capabilities = tm_if_types_ext_capa_sta, 258 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 259 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 260 /* relevant only if EHT is supported */ 261 .eml_capabilities = IEEE80211_EML_CAP_EMLSR_SUPP, 262 }, 263 }; 264 265 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 266 { 267 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 268 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 269 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 270 return 0; 271 } 272 273 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 274 { 275 struct ieee80211_hw *hw = mvm->hw; 276 int num_mac, ret, i; 277 static const u32 mvm_ciphers[] = { 278 WLAN_CIPHER_SUITE_WEP40, 279 WLAN_CIPHER_SUITE_WEP104, 280 WLAN_CIPHER_SUITE_TKIP, 281 WLAN_CIPHER_SUITE_CCMP, 282 }; 283 #ifdef CONFIG_PM_SLEEP 284 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 285 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 286 #endif 287 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 288 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 289 290 /* Tell mac80211 our characteristics */ 291 ieee80211_hw_set(hw, SIGNAL_DBM); 292 ieee80211_hw_set(hw, SPECTRUM_MGMT); 293 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 294 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 295 ieee80211_hw_set(hw, SUPPORTS_PS); 296 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 297 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 298 ieee80211_hw_set(hw, CONNECTION_MONITOR); 299 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 300 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 301 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 302 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 303 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 304 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 305 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 306 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 307 308 /* Set this early since we need to have it for the check below */ 309 if (mvm->mld_api_is_used && 310 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 311 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 312 313 /* With MLD FW API, it tracks timing by itself, 314 * no need for any timing from the host 315 */ 316 if (!mvm->mld_api_is_used) 317 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 318 319 /* We should probably have this, but mac80211 320 * currently doesn't support it for MLO. 321 */ 322 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 323 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 324 325 /* 326 * On older devices, enabling TX A-MSDU occasionally leads to 327 * something getting messed up, the command read from the FIFO 328 * gets out of sync and isn't a TX command, so that we have an 329 * assert EDC. 330 * 331 * It's not clear where the bug is, but since we didn't used to 332 * support A-MSDU until moving the mac80211 iTXQs, just leave it 333 * for older devices. We also don't see this issue on any newer 334 * devices. 335 */ 336 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 337 ieee80211_hw_set(hw, TX_AMSDU); 338 ieee80211_hw_set(hw, TX_FRAG_LIST); 339 340 if (iwl_mvm_has_tlc_offload(mvm)) { 341 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 342 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 343 } 344 345 if (iwl_mvm_has_new_rx_api(mvm)) 346 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 347 348 if (fw_has_capa(&mvm->fw->ucode_capa, 349 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 350 ieee80211_hw_set(hw, AP_LINK_PS); 351 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 352 /* 353 * we absolutely need this for the new TX API since that comes 354 * with many more queues than the current code can deal with 355 * for station powersave 356 */ 357 return -EINVAL; 358 } 359 360 if (mvm->trans->num_rx_queues > 1) 361 ieee80211_hw_set(hw, USES_RSS); 362 363 if (mvm->trans->max_skb_frags) 364 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 365 366 hw->queues = IEEE80211_NUM_ACS; 367 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 368 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 369 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 370 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 371 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 372 373 hw->radiotap_timestamp.units_pos = 374 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 375 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 376 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 377 hw->radiotap_timestamp.accuracy = 22; 378 379 if (!iwl_mvm_has_tlc_offload(mvm)) 380 hw->rate_control_algorithm = RS_NAME; 381 382 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 383 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 384 hw->max_tx_fragments = mvm->trans->max_skb_frags; 385 386 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 387 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 388 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 389 hw->wiphy->cipher_suites = mvm->ciphers; 390 391 if (iwl_mvm_has_new_rx_api(mvm)) { 392 mvm->ciphers[hw->wiphy->n_cipher_suites] = 393 WLAN_CIPHER_SUITE_GCMP; 394 hw->wiphy->n_cipher_suites++; 395 mvm->ciphers[hw->wiphy->n_cipher_suites] = 396 WLAN_CIPHER_SUITE_GCMP_256; 397 hw->wiphy->n_cipher_suites++; 398 } 399 400 if (iwlwifi_mod_params.swcrypto) 401 IWL_ERR(mvm, 402 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 403 if (!iwlwifi_mod_params.bt_coex_active) 404 IWL_ERR(mvm, 405 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 406 407 ieee80211_hw_set(hw, MFP_CAPABLE); 408 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 409 hw->wiphy->n_cipher_suites++; 410 if (iwl_mvm_has_new_rx_api(mvm)) { 411 mvm->ciphers[hw->wiphy->n_cipher_suites] = 412 WLAN_CIPHER_SUITE_BIP_GMAC_128; 413 hw->wiphy->n_cipher_suites++; 414 mvm->ciphers[hw->wiphy->n_cipher_suites] = 415 WLAN_CIPHER_SUITE_BIP_GMAC_256; 416 hw->wiphy->n_cipher_suites++; 417 } 418 419 wiphy_ext_feature_set(hw->wiphy, 420 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 421 wiphy_ext_feature_set(hw->wiphy, 422 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 423 424 if (fw_has_capa(&mvm->fw->ucode_capa, 425 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 426 wiphy_ext_feature_set(hw->wiphy, 427 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 428 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 429 } 430 431 if (sec_key_ver && 432 fw_has_capa(&mvm->fw->ucode_capa, 433 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 434 wiphy_ext_feature_set(hw->wiphy, 435 NL80211_EXT_FEATURE_BEACON_PROTECTION); 436 else if (fw_has_capa(&mvm->fw->ucode_capa, 437 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 438 wiphy_ext_feature_set(hw->wiphy, 439 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 440 441 if (fw_has_capa(&mvm->fw->ucode_capa, 442 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 443 hw->wiphy->hw_timestamp_max_peers = 1; 444 445 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 446 hw->wiphy->features |= 447 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 448 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 449 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 450 451 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 452 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 453 hw->chanctx_data_size = sizeof(u16); 454 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 455 456 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 457 BIT(NL80211_IFTYPE_P2P_CLIENT) | 458 BIT(NL80211_IFTYPE_AP) | 459 BIT(NL80211_IFTYPE_P2P_GO) | 460 BIT(NL80211_IFTYPE_P2P_DEVICE) | 461 BIT(NL80211_IFTYPE_ADHOC); 462 463 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 464 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 465 466 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 467 * the hw, preventing us to control which key(id) to use per MPDU. 468 * Till that's fixed we can't use Extended Key ID for the newer cards. 469 */ 470 if (!iwl_mvm_has_new_tx_api(mvm)) 471 wiphy_ext_feature_set(hw->wiphy, 472 NL80211_EXT_FEATURE_EXT_KEY_ID); 473 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 474 475 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 476 if (iwl_mvm_is_lar_supported(mvm)) 477 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 478 else 479 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 480 REGULATORY_DISABLE_BEACON_HINTS; 481 482 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 483 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 484 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 485 486 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 487 hw->wiphy->n_iface_combinations = 488 ARRAY_SIZE(iwl_mvm_iface_combinations); 489 490 hw->wiphy->max_remain_on_channel_duration = 10000; 491 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 492 493 /* Extract MAC address */ 494 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 495 hw->wiphy->addresses = mvm->addresses; 496 hw->wiphy->n_addresses = 1; 497 498 /* Extract additional MAC addresses if available */ 499 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 500 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 501 502 for (i = 1; i < num_mac; i++) { 503 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 504 ETH_ALEN); 505 mvm->addresses[i].addr[5]++; 506 hw->wiphy->n_addresses++; 507 } 508 509 iwl_mvm_reset_phy_ctxts(mvm); 510 511 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 512 513 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 514 515 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 516 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 517 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 518 519 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 520 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 521 else 522 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 523 524 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 525 hw->wiphy->bands[NL80211_BAND_2GHZ] = 526 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 527 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 528 hw->wiphy->bands[NL80211_BAND_5GHZ] = 529 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 530 531 if (fw_has_capa(&mvm->fw->ucode_capa, 532 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 533 fw_has_api(&mvm->fw->ucode_capa, 534 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 535 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 536 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 537 } 538 if (fw_has_capa(&mvm->fw->ucode_capa, 539 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 540 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 541 hw->wiphy->bands[NL80211_BAND_6GHZ] = 542 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 543 544 hw->wiphy->hw_version = mvm->trans->hw_id; 545 546 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 547 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 548 else 549 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 550 551 hw->wiphy->max_sched_scan_reqs = 1; 552 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 553 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 554 /* we create the 802.11 header and zero length SSID IE. */ 555 hw->wiphy->max_sched_scan_ie_len = 556 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 557 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 558 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 559 560 /* 561 * the firmware uses u8 for num of iterations, but 0xff is saved for 562 * infinite loop, so the maximum number of iterations is actually 254. 563 */ 564 hw->wiphy->max_sched_scan_plan_iterations = 254; 565 566 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 567 NL80211_FEATURE_LOW_PRIORITY_SCAN | 568 NL80211_FEATURE_P2P_GO_OPPPS | 569 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 570 NL80211_FEATURE_DYNAMIC_SMPS | 571 NL80211_FEATURE_STATIC_SMPS | 572 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 573 574 if (fw_has_capa(&mvm->fw->ucode_capa, 575 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 576 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 577 if (fw_has_capa(&mvm->fw->ucode_capa, 578 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 579 hw->wiphy->features |= NL80211_FEATURE_QUIET; 580 581 if (fw_has_capa(&mvm->fw->ucode_capa, 582 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 583 hw->wiphy->features |= 584 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 585 586 if (fw_has_capa(&mvm->fw->ucode_capa, 587 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 588 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 589 590 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 591 IWL_FW_CMD_VER_UNKNOWN) == 3) 592 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 593 594 if (fw_has_api(&mvm->fw->ucode_capa, 595 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 596 wiphy_ext_feature_set(hw->wiphy, 597 NL80211_EXT_FEATURE_SCAN_START_TIME); 598 wiphy_ext_feature_set(hw->wiphy, 599 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 600 } 601 602 if (iwl_mvm_is_oce_supported(mvm)) { 603 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 604 605 wiphy_ext_feature_set(hw->wiphy, 606 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 607 wiphy_ext_feature_set(hw->wiphy, 608 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 609 wiphy_ext_feature_set(hw->wiphy, 610 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 611 612 /* Old firmware also supports probe deferral and suppression */ 613 if (scan_ver < 15) 614 wiphy_ext_feature_set(hw->wiphy, 615 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 616 } 617 618 hw->wiphy->iftype_ext_capab = NULL; 619 hw->wiphy->num_iftype_ext_capab = 0; 620 621 if (mvm->nvm_data->sku_cap_11ax_enable && 622 !iwlwifi_mod_params.disable_11ax) { 623 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 624 hw->wiphy->num_iftype_ext_capab = 625 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 626 627 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 628 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 629 } 630 631 if (iwl_fw_lookup_cmd_ver(mvm->fw, 632 WIDE_ID(DATA_PATH_GROUP, 633 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 634 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 635 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 636 637 if (!hw->wiphy->iftype_ext_capab) { 638 hw->wiphy->num_iftype_ext_capab = 1; 639 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 640 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 641 } else { 642 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 643 } 644 } 645 646 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 647 648 #ifdef CONFIG_PM_SLEEP 649 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 650 mvm->trans->ops->d3_suspend && 651 mvm->trans->ops->d3_resume && 652 device_can_wakeup(mvm->trans->dev)) { 653 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 654 WIPHY_WOWLAN_DISCONNECT | 655 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 656 WIPHY_WOWLAN_RFKILL_RELEASE | 657 WIPHY_WOWLAN_NET_DETECT; 658 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 659 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 660 WIPHY_WOWLAN_4WAY_HANDSHAKE; 661 662 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 663 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 664 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 665 mvm->wowlan.max_nd_match_sets = 666 iwl_umac_scan_get_max_profiles(mvm->fw); 667 hw->wiphy->wowlan = &mvm->wowlan; 668 } 669 #endif 670 671 ret = iwl_mvm_leds_init(mvm); 672 if (ret) 673 return ret; 674 675 if (fw_has_capa(&mvm->fw->ucode_capa, 676 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 677 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 678 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 679 ieee80211_hw_set(hw, TDLS_WIDER_BW); 680 } 681 682 if (fw_has_capa(&mvm->fw->ucode_capa, 683 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 684 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 685 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 686 } 687 688 hw->netdev_features |= mvm->cfg->features; 689 if (!iwl_mvm_is_csum_supported(mvm)) 690 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 691 692 if (mvm->cfg->vht_mu_mimo_supported) 693 wiphy_ext_feature_set(hw->wiphy, 694 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 695 696 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 697 wiphy_ext_feature_set(hw->wiphy, 698 NL80211_EXT_FEATURE_PROTECTED_TWT); 699 700 iwl_mvm_vendor_cmds_register(mvm); 701 702 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 703 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 704 705 ret = ieee80211_register_hw(mvm->hw); 706 if (ret) { 707 iwl_mvm_leds_exit(mvm); 708 } 709 710 return ret; 711 } 712 713 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 714 struct ieee80211_sta *sta) 715 { 716 if (likely(sta)) { 717 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 718 return; 719 } else { 720 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 721 return; 722 } 723 724 ieee80211_free_txskb(mvm->hw, skb); 725 } 726 727 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 728 struct ieee80211_tx_control *control, struct sk_buff *skb) 729 { 730 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 731 struct ieee80211_sta *sta = control->sta; 732 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 733 struct ieee80211_hdr *hdr = (void *)skb->data; 734 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 735 IEEE80211_TX_CTL_TX_OFFCHAN; 736 u32 link_id = u32_get_bits(info->control.flags, 737 IEEE80211_TX_CTRL_MLO_LINK); 738 struct ieee80211_sta *tmp_sta = sta; 739 740 if (iwl_mvm_is_radio_killed(mvm)) { 741 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 742 goto drop; 743 } 744 745 if (offchannel && 746 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 747 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 748 goto drop; 749 750 /* 751 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 752 * so we treat the others as broadcast 753 */ 754 if (ieee80211_is_mgmt(hdr->frame_control)) 755 sta = NULL; 756 757 /* If there is no sta, and it's not offchannel - send through AP */ 758 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 759 !offchannel) { 760 struct iwl_mvm_vif *mvmvif = 761 iwl_mvm_vif_from_mac80211(info->control.vif); 762 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 763 764 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 765 /* mac80211 holds rcu read lock */ 766 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 767 if (IS_ERR_OR_NULL(sta)) 768 goto drop; 769 } 770 } 771 772 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 773 !ieee80211_is_probe_resp(hdr->frame_control)) { 774 /* translate MLD addresses to LINK addresses */ 775 struct ieee80211_link_sta *link_sta = 776 rcu_dereference(tmp_sta->link[link_id]); 777 struct ieee80211_bss_conf *link_conf = 778 rcu_dereference(info->control.vif->link_conf[link_id]); 779 struct ieee80211_mgmt *mgmt; 780 781 if (WARN_ON(!link_sta || !link_conf)) 782 goto drop; 783 784 /* if sta is NULL, the frame is a management frame */ 785 mgmt = (void *)hdr; 786 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 787 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 788 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 789 } 790 791 iwl_mvm_tx_skb(mvm, skb, sta); 792 return; 793 drop: 794 ieee80211_free_txskb(hw, skb); 795 } 796 797 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 798 { 799 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 800 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 801 struct sk_buff *skb = NULL; 802 803 /* 804 * No need for threads to be pending here, they can leave the first 805 * taker all the work. 806 * 807 * mvmtxq->tx_request logic: 808 * 809 * If 0, no one is currently TXing, set to 1 to indicate current thread 810 * will now start TX and other threads should quit. 811 * 812 * If 1, another thread is currently TXing, set to 2 to indicate to 813 * that thread that there was another request. Since that request may 814 * have raced with the check whether the queue is empty, the TXing 815 * thread should check the queue's status one more time before leaving. 816 * This check is done in order to not leave any TX hanging in the queue 817 * until the next TX invocation (which may not even happen). 818 * 819 * If 2, another thread is currently TXing, and it will already double 820 * check the queue, so do nothing. 821 */ 822 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 823 return; 824 825 rcu_read_lock(); 826 do { 827 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 828 &mvmtxq->state) && 829 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 830 &mvmtxq->state) && 831 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 832 skb = ieee80211_tx_dequeue(hw, txq); 833 834 if (!skb) { 835 if (txq->sta) 836 IWL_DEBUG_TX(mvm, 837 "TXQ of sta %pM tid %d is now empty\n", 838 txq->sta->addr, 839 txq->tid); 840 break; 841 } 842 843 iwl_mvm_tx_skb(mvm, skb, txq->sta); 844 } 845 } while (atomic_dec_return(&mvmtxq->tx_request)); 846 rcu_read_unlock(); 847 } 848 849 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 850 struct ieee80211_txq *txq) 851 { 852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 853 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 854 855 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 856 !txq->sta) { 857 iwl_mvm_mac_itxq_xmit(hw, txq); 858 return; 859 } 860 861 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 862 * to handle any packets we leave on the txq now 863 */ 864 865 spin_lock_bh(&mvm->add_stream_lock); 866 /* The list is being deleted only after the queue is fully allocated. */ 867 if (list_empty(&mvmtxq->list) && 868 /* recheck under lock */ 869 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 870 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 871 schedule_work(&mvm->add_stream_wk); 872 } 873 spin_unlock_bh(&mvm->add_stream_lock); 874 } 875 876 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 877 do { \ 878 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 879 break; \ 880 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 881 } while (0) 882 883 static void 884 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 885 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 886 enum ieee80211_ampdu_mlme_action action) 887 { 888 struct iwl_fw_dbg_trigger_tlv *trig; 889 struct iwl_fw_dbg_trigger_ba *ba_trig; 890 891 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 892 FW_DBG_TRIGGER_BA); 893 if (!trig) 894 return; 895 896 ba_trig = (void *)trig->data; 897 898 switch (action) { 899 case IEEE80211_AMPDU_TX_OPERATIONAL: { 900 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 901 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 902 903 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 904 "TX AGG START: MAC %pM tid %d ssn %d\n", 905 sta->addr, tid, tid_data->ssn); 906 break; 907 } 908 case IEEE80211_AMPDU_TX_STOP_CONT: 909 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 910 "TX AGG STOP: MAC %pM tid %d\n", 911 sta->addr, tid); 912 break; 913 case IEEE80211_AMPDU_RX_START: 914 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 915 "RX AGG START: MAC %pM tid %d ssn %d\n", 916 sta->addr, tid, rx_ba_ssn); 917 break; 918 case IEEE80211_AMPDU_RX_STOP: 919 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 920 "RX AGG STOP: MAC %pM tid %d\n", 921 sta->addr, tid); 922 break; 923 default: 924 break; 925 } 926 } 927 928 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 929 struct ieee80211_vif *vif, 930 struct ieee80211_ampdu_params *params) 931 { 932 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 933 int ret; 934 struct ieee80211_sta *sta = params->sta; 935 enum ieee80211_ampdu_mlme_action action = params->action; 936 u16 tid = params->tid; 937 u16 *ssn = ¶ms->ssn; 938 u16 buf_size = params->buf_size; 939 bool amsdu = params->amsdu; 940 u16 timeout = params->timeout; 941 942 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 943 sta->addr, tid, action); 944 945 if (!(mvm->nvm_data->sku_cap_11n_enable)) 946 return -EACCES; 947 948 mutex_lock(&mvm->mutex); 949 950 switch (action) { 951 case IEEE80211_AMPDU_RX_START: 952 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 953 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 954 struct iwl_mvm_vif *mvmvif; 955 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 956 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 957 958 mdata->opened_rx_ba_sessions = true; 959 mvmvif = iwl_mvm_vif_from_mac80211(vif); 960 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 961 } 962 if (!iwl_enable_rx_ampdu()) { 963 ret = -EINVAL; 964 break; 965 } 966 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 967 timeout); 968 break; 969 case IEEE80211_AMPDU_RX_STOP: 970 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 971 timeout); 972 break; 973 case IEEE80211_AMPDU_TX_START: 974 if (!iwl_enable_tx_ampdu()) { 975 ret = -EINVAL; 976 break; 977 } 978 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 979 break; 980 case IEEE80211_AMPDU_TX_STOP_CONT: 981 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 982 break; 983 case IEEE80211_AMPDU_TX_STOP_FLUSH: 984 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 985 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 986 break; 987 case IEEE80211_AMPDU_TX_OPERATIONAL: 988 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 989 buf_size, amsdu); 990 break; 991 default: 992 WARN_ON_ONCE(1); 993 ret = -EINVAL; 994 break; 995 } 996 997 if (!ret) { 998 u16 rx_ba_ssn = 0; 999 1000 if (action == IEEE80211_AMPDU_RX_START) 1001 rx_ba_ssn = *ssn; 1002 1003 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1004 rx_ba_ssn, action); 1005 } 1006 mutex_unlock(&mvm->mutex); 1007 1008 return ret; 1009 } 1010 1011 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1012 struct ieee80211_vif *vif) 1013 { 1014 struct iwl_mvm *mvm = data; 1015 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1016 struct iwl_probe_resp_data *probe_data; 1017 unsigned int link_id; 1018 1019 mvmvif->uploaded = false; 1020 1021 spin_lock_bh(&mvm->time_event_lock); 1022 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1023 spin_unlock_bh(&mvm->time_event_lock); 1024 1025 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1026 1027 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1028 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1029 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1030 mvmvif->link[link_id]->phy_ctxt = NULL; 1031 mvmvif->link[link_id]->active = 0; 1032 } 1033 1034 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1035 lockdep_is_held(&mvm->mutex)); 1036 if (probe_data) 1037 kfree_rcu(probe_data, rcu_head); 1038 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1039 } 1040 1041 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1042 { 1043 iwl_mvm_stop_device(mvm); 1044 1045 mvm->cur_aid = 0; 1046 1047 mvm->scan_status = 0; 1048 mvm->ps_disabled = false; 1049 mvm->rfkill_safe_init_done = false; 1050 1051 /* just in case one was running */ 1052 iwl_mvm_cleanup_roc_te(mvm); 1053 ieee80211_remain_on_channel_expired(mvm->hw); 1054 1055 iwl_mvm_ftm_restart(mvm); 1056 1057 /* 1058 * cleanup all interfaces, even inactive ones, as some might have 1059 * gone down during the HW restart 1060 */ 1061 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1062 1063 mvm->p2p_device_vif = NULL; 1064 1065 iwl_mvm_reset_phy_ctxts(mvm); 1066 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1067 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1068 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1069 1070 ieee80211_wake_queues(mvm->hw); 1071 1072 mvm->rx_ba_sessions = 0; 1073 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1074 mvm->monitor_on = false; 1075 #ifdef CONFIG_IWLWIFI_DEBUGFS 1076 mvm->beacon_inject_active = false; 1077 #endif 1078 1079 /* keep statistics ticking */ 1080 iwl_mvm_accu_radio_stats(mvm); 1081 } 1082 1083 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1084 { 1085 int ret; 1086 1087 lockdep_assert_held(&mvm->mutex); 1088 1089 ret = iwl_mvm_mei_get_ownership(mvm); 1090 if (ret) 1091 return ret; 1092 1093 if (mvm->mei_nvm_data) { 1094 /* We got the NIC, we can now free the MEI NVM data */ 1095 kfree(mvm->mei_nvm_data); 1096 mvm->mei_nvm_data = NULL; 1097 1098 /* 1099 * We can't free the nvm_data we allocated based on the SAP 1100 * data because we registered to cfg80211 with the channels 1101 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1102 * just in order to be able free it later. 1103 * NULLify nvm_data so that we will read the NVM from the 1104 * firmware this time. 1105 */ 1106 mvm->temp_nvm_data = mvm->nvm_data; 1107 mvm->nvm_data = NULL; 1108 } 1109 1110 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1111 /* 1112 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1113 * so later code will - from now on - see that we're doing it. 1114 */ 1115 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1116 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1117 /* Clean up some internal and mac80211 state on restart */ 1118 iwl_mvm_restart_cleanup(mvm); 1119 } 1120 ret = iwl_mvm_up(mvm); 1121 1122 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1123 NULL); 1124 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1125 NULL); 1126 1127 mvm->last_reset_or_resume_time_jiffies = jiffies; 1128 1129 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1130 /* Something went wrong - we need to finish some cleanup 1131 * that normally iwl_mvm_mac_restart_complete() below 1132 * would do. 1133 */ 1134 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1135 } 1136 1137 return ret; 1138 } 1139 1140 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1141 { 1142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1143 int ret; 1144 int retry, max_retry = 0; 1145 1146 mutex_lock(&mvm->mutex); 1147 1148 /* we are starting the mac not in error flow, and restart is enabled */ 1149 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1150 iwlwifi_mod_params.fw_restart) { 1151 max_retry = IWL_MAX_INIT_RETRY; 1152 /* 1153 * This will prevent mac80211 recovery flows to trigger during 1154 * init failures 1155 */ 1156 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1157 } 1158 1159 for (retry = 0; retry <= max_retry; retry++) { 1160 ret = __iwl_mvm_mac_start(mvm); 1161 if (!ret) 1162 break; 1163 1164 /* 1165 * In PLDR sync PCI re-enumeration is needed. no point to retry 1166 * mac start before that. 1167 */ 1168 if (mvm->pldr_sync) { 1169 iwl_mei_alive_notif(false); 1170 iwl_trans_pcie_remove(mvm->trans, true); 1171 break; 1172 } 1173 1174 IWL_ERR(mvm, "mac start retry %d\n", retry); 1175 } 1176 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1177 1178 mutex_unlock(&mvm->mutex); 1179 1180 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1181 1182 return ret; 1183 } 1184 1185 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1186 { 1187 int ret; 1188 1189 mutex_lock(&mvm->mutex); 1190 1191 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1192 1193 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1194 if (ret) 1195 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1196 ret); 1197 1198 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1199 1200 /* 1201 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1202 * of packets the FW sent out, so we must reconnect. 1203 */ 1204 iwl_mvm_teardown_tdls_peers(mvm); 1205 1206 mutex_unlock(&mvm->mutex); 1207 } 1208 1209 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1210 enum ieee80211_reconfig_type reconfig_type) 1211 { 1212 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1213 1214 switch (reconfig_type) { 1215 case IEEE80211_RECONFIG_TYPE_RESTART: 1216 iwl_mvm_restart_complete(mvm); 1217 break; 1218 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1219 break; 1220 } 1221 } 1222 1223 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1224 { 1225 lockdep_assert_held(&mvm->mutex); 1226 1227 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1228 1229 /* firmware counters are obviously reset now, but we shouldn't 1230 * partially track so also clear the fw_reset_accu counters. 1231 */ 1232 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1233 1234 /* async_handlers_wk is now blocked */ 1235 1236 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) < 12) 1237 iwl_mvm_rm_aux_sta(mvm); 1238 1239 iwl_mvm_stop_device(mvm); 1240 1241 iwl_mvm_async_handlers_purge(mvm); 1242 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1243 1244 /* 1245 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1246 * hw (as restart_complete() won't be called in this case) and mac80211 1247 * won't execute the restart. 1248 * But make sure to cleanup interfaces that have gone down before/during 1249 * HW restart was requested. 1250 */ 1251 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1252 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1253 &mvm->status)) 1254 ieee80211_iterate_interfaces(mvm->hw, 0, 1255 iwl_mvm_cleanup_iterator, mvm); 1256 1257 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1258 * make sure there's nothing left there and warn if any is found. 1259 */ 1260 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1261 int i; 1262 1263 for (i = 0; i < mvm->max_scans; i++) { 1264 if (WARN_ONCE(mvm->scan_uid_status[i], 1265 "UMAC scan UID %d status was not cleaned\n", 1266 i)) 1267 mvm->scan_uid_status[i] = 0; 1268 } 1269 } 1270 } 1271 1272 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1273 { 1274 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1275 1276 flush_work(&mvm->async_handlers_wk); 1277 flush_work(&mvm->add_stream_wk); 1278 1279 /* 1280 * Lock and clear the firmware running bit here already, so that 1281 * new commands coming in elsewhere, e.g. from debugfs, will not 1282 * be able to proceed. This is important here because one of those 1283 * debugfs files causes the firmware dump to be triggered, and if we 1284 * don't stop debugfs accesses before canceling that it could be 1285 * retriggered after we flush it but before we've cleared the bit. 1286 */ 1287 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1288 1289 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1290 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1291 1292 /* 1293 * The work item could be running or queued if the 1294 * ROC time event stops just as we get here. 1295 */ 1296 flush_work(&mvm->roc_done_wk); 1297 1298 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1299 1300 mutex_lock(&mvm->mutex); 1301 __iwl_mvm_mac_stop(mvm); 1302 mutex_unlock(&mvm->mutex); 1303 1304 /* 1305 * The worker might have been waiting for the mutex, let it run and 1306 * discover that its list is now empty. 1307 */ 1308 cancel_work_sync(&mvm->async_handlers_wk); 1309 } 1310 1311 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1312 { 1313 u16 i; 1314 1315 lockdep_assert_held(&mvm->mutex); 1316 1317 for (i = 0; i < NUM_PHY_CTX; i++) 1318 if (!mvm->phy_ctxts[i].ref) 1319 return &mvm->phy_ctxts[i]; 1320 1321 IWL_ERR(mvm, "No available PHY context\n"); 1322 return NULL; 1323 } 1324 1325 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1326 s16 tx_power) 1327 { 1328 u32 cmd_id = REDUCE_TX_POWER_CMD; 1329 int len; 1330 struct iwl_dev_tx_power_cmd cmd = { 1331 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1332 .common.mac_context_id = 1333 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1334 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1335 }; 1336 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1337 IWL_FW_CMD_VER_UNKNOWN); 1338 1339 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1340 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1341 1342 if (cmd_ver == 7) 1343 len = sizeof(cmd.v7); 1344 else if (cmd_ver == 6) 1345 len = sizeof(cmd.v6); 1346 else if (fw_has_api(&mvm->fw->ucode_capa, 1347 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1348 len = sizeof(cmd.v5); 1349 else if (fw_has_capa(&mvm->fw->ucode_capa, 1350 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1351 len = sizeof(cmd.v4); 1352 else 1353 len = sizeof(cmd.v3); 1354 1355 /* all structs have the same common part, add it */ 1356 len += sizeof(cmd.common); 1357 1358 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1359 } 1360 1361 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1362 struct ieee80211_vif *vif) 1363 { 1364 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1365 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1366 int ret; 1367 1368 mutex_lock(&mvm->mutex); 1369 1370 if (vif->type == NL80211_IFTYPE_STATION) { 1371 struct iwl_mvm_sta *mvmsta; 1372 1373 mvmvif->csa_bcn_pending = false; 1374 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1375 mvmvif->deflink.ap_sta_id); 1376 1377 if (WARN_ON(!mvmsta)) { 1378 ret = -EIO; 1379 goto out_unlock; 1380 } 1381 1382 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1383 if (mvm->mld_api_is_used) 1384 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1385 else 1386 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1387 1388 if (!fw_has_capa(&mvm->fw->ucode_capa, 1389 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1390 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1391 if (ret) 1392 goto out_unlock; 1393 1394 iwl_mvm_stop_session_protection(mvm, vif); 1395 } 1396 } 1397 1398 mvmvif->ps_disabled = false; 1399 1400 ret = iwl_mvm_power_update_ps(mvm); 1401 1402 out_unlock: 1403 if (mvmvif->csa_failed) 1404 ret = -EIO; 1405 mutex_unlock(&mvm->mutex); 1406 1407 return ret; 1408 } 1409 1410 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1411 struct ieee80211_vif *vif) 1412 { 1413 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1414 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1415 struct iwl_chan_switch_te_cmd cmd = { 1416 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1417 mvmvif->color)), 1418 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1419 }; 1420 1421 /* 1422 * In the new flow since FW is in charge of the timing, 1423 * if driver has canceled the channel switch he will receive the 1424 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1425 */ 1426 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1427 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1428 return; 1429 1430 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1431 1432 mutex_lock(&mvm->mutex); 1433 if (!fw_has_capa(&mvm->fw->ucode_capa, 1434 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1435 iwl_mvm_remove_csa_period(mvm, vif); 1436 else 1437 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1438 WIDE_ID(MAC_CONF_GROUP, 1439 CHANNEL_SWITCH_TIME_EVENT_CMD), 1440 0, sizeof(cmd), &cmd)); 1441 mvmvif->csa_failed = true; 1442 mutex_unlock(&mvm->mutex); 1443 1444 iwl_mvm_post_channel_switch(hw, vif); 1445 } 1446 1447 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1448 { 1449 struct iwl_mvm_vif *mvmvif; 1450 struct ieee80211_vif *vif; 1451 1452 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1453 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1454 1455 /* Trigger disconnect (should clear the CSA state) */ 1456 ieee80211_chswitch_done(vif, false); 1457 } 1458 1459 static u8 1460 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1461 { 1462 int data_start; 1463 int control_start; 1464 int bw; 1465 1466 if (chandef->width == NL80211_CHAN_WIDTH_320) 1467 bw = 320; 1468 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1469 bw = 160; 1470 else 1471 return 0; 1472 1473 /* data is bw wide so the start is half the width */ 1474 data_start = chandef->center_freq1 - bw / 2; 1475 /* control is 20Mhz width */ 1476 control_start = chandef->chan->center_freq - 10; 1477 1478 return (control_start - data_start) / 80; 1479 } 1480 1481 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1482 struct ieee80211_vif *vif) 1483 { 1484 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1485 int ret; 1486 1487 lockdep_assert_held(&mvm->mutex); 1488 1489 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1490 if (ret) { 1491 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1492 return ret; 1493 } 1494 1495 /* Only queue for this station is the mcast queue, 1496 * which shouldn't be in TFD mask anyway 1497 */ 1498 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1499 vif->type, 1500 IWL_STA_MULTICAST); 1501 } 1502 1503 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1504 struct ieee80211_vif *vif) 1505 { 1506 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1507 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1508 int ret; 1509 1510 mutex_lock(&mvm->mutex); 1511 1512 mvmvif->mvm = mvm; 1513 1514 /* the first link always points to the default one */ 1515 mvmvif->link[0] = &mvmvif->deflink; 1516 1517 /* 1518 * Not much to do here. The stack will not allow interface 1519 * types or combinations that we didn't advertise, so we 1520 * don't really have to check the types. 1521 */ 1522 1523 /* make sure that beacon statistics don't go backwards with FW reset */ 1524 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1525 mvmvif->deflink.beacon_stats.accu_num_beacons += 1526 mvmvif->deflink.beacon_stats.num_beacons; 1527 1528 /* Allocate resources for the MAC context, and add it to the fw */ 1529 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1530 if (ret) 1531 goto out; 1532 1533 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1534 1535 /* Currently not much to do for NAN */ 1536 if (vif->type == NL80211_IFTYPE_NAN) { 1537 ret = 0; 1538 goto out; 1539 } 1540 1541 /* 1542 * The AP binding flow can be done only after the beacon 1543 * template is configured (which happens only in the mac80211 1544 * start_ap() flow), and adding the broadcast station can happen 1545 * only after the binding. 1546 * In addition, since modifying the MAC before adding a bcast 1547 * station is not allowed by the FW, delay the adding of MAC context to 1548 * the point where we can also add the bcast station. 1549 * In short: there's not much we can do at this point, other than 1550 * allocating resources :) 1551 */ 1552 if (vif->type == NL80211_IFTYPE_AP || 1553 vif->type == NL80211_IFTYPE_ADHOC) { 1554 iwl_mvm_vif_dbgfs_register(mvm, vif); 1555 ret = 0; 1556 goto out; 1557 } 1558 1559 mvmvif->features |= hw->netdev_features; 1560 1561 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1562 if (ret) 1563 goto out_unlock; 1564 1565 ret = iwl_mvm_power_update_mac(mvm); 1566 if (ret) 1567 goto out_remove_mac; 1568 1569 /* beacon filtering */ 1570 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1571 if (ret) 1572 goto out_remove_mac; 1573 1574 if (!mvm->bf_allowed_vif && 1575 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1576 mvm->bf_allowed_vif = mvmvif; 1577 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1578 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1579 } 1580 1581 /* 1582 * P2P_DEVICE interface does not have a channel context assigned to it, 1583 * so a dedicated PHY context is allocated to it and the corresponding 1584 * MAC context is bound to it at this stage. 1585 */ 1586 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1587 1588 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1589 if (!mvmvif->deflink.phy_ctxt) { 1590 ret = -ENOSPC; 1591 goto out_free_bf; 1592 } 1593 1594 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 1595 ret = iwl_mvm_binding_add_vif(mvm, vif); 1596 if (ret) 1597 goto out_unref_phy; 1598 1599 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1600 if (ret) 1601 goto out_unbind; 1602 1603 /* Save a pointer to p2p device vif, so it can later be used to 1604 * update the p2p device MAC when a GO is started/stopped */ 1605 mvm->p2p_device_vif = vif; 1606 } 1607 1608 iwl_mvm_tcm_add_vif(mvm, vif); 1609 INIT_DELAYED_WORK(&mvmvif->csa_work, 1610 iwl_mvm_channel_switch_disconnect_wk); 1611 1612 if (vif->type == NL80211_IFTYPE_MONITOR) { 1613 mvm->monitor_on = true; 1614 mvm->monitor_p80 = 1615 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1616 } 1617 1618 iwl_mvm_vif_dbgfs_register(mvm, vif); 1619 1620 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1621 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1622 !mvm->csme_vif && mvm->mei_registered) { 1623 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1624 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1625 mvm->csme_vif = vif; 1626 } 1627 1628 out: 1629 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1630 vif->type == NL80211_IFTYPE_ADHOC)) 1631 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1632 1633 goto out_unlock; 1634 1635 out_unbind: 1636 iwl_mvm_binding_remove_vif(mvm, vif); 1637 out_unref_phy: 1638 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1639 out_free_bf: 1640 if (mvm->bf_allowed_vif == mvmvif) { 1641 mvm->bf_allowed_vif = NULL; 1642 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1643 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1644 } 1645 out_remove_mac: 1646 mvmvif->deflink.phy_ctxt = NULL; 1647 iwl_mvm_mac_ctxt_remove(mvm, vif); 1648 out_unlock: 1649 mutex_unlock(&mvm->mutex); 1650 1651 return ret; 1652 } 1653 1654 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1655 struct ieee80211_vif *vif) 1656 { 1657 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1658 /* 1659 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1660 * We assume here that all the packets sent to the OFFCHANNEL 1661 * queue are sent in ROC session. 1662 */ 1663 flush_work(&mvm->roc_done_wk); 1664 } 1665 } 1666 1667 /* This function is doing the common part of removing the interface for 1668 * both - MLD and non-MLD modes. Returns true if removing the interface 1669 * is done 1670 */ 1671 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1672 struct ieee80211_vif *vif) 1673 { 1674 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1675 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1676 struct iwl_probe_resp_data *probe_data; 1677 1678 iwl_mvm_prepare_mac_removal(mvm, vif); 1679 1680 if (!(vif->type == NL80211_IFTYPE_AP || 1681 vif->type == NL80211_IFTYPE_ADHOC)) 1682 iwl_mvm_tcm_rm_vif(mvm, vif); 1683 1684 mutex_lock(&mvm->mutex); 1685 1686 if (vif == mvm->csme_vif) { 1687 iwl_mei_set_netdev(NULL); 1688 mvm->csme_vif = NULL; 1689 } 1690 1691 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1692 lockdep_is_held(&mvm->mutex)); 1693 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1694 if (probe_data) 1695 kfree_rcu(probe_data, rcu_head); 1696 1697 if (mvm->bf_allowed_vif == mvmvif) { 1698 mvm->bf_allowed_vif = NULL; 1699 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1700 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1701 } 1702 1703 if (vif->bss_conf.ftm_responder) 1704 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1705 1706 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1707 1708 /* 1709 * For AP/GO interface, the tear down of the resources allocated to the 1710 * interface is be handled as part of the stop_ap flow. 1711 */ 1712 if (vif->type == NL80211_IFTYPE_AP || 1713 vif->type == NL80211_IFTYPE_ADHOC) { 1714 #ifdef CONFIG_NL80211_TESTMODE 1715 if (vif == mvm->noa_vif) { 1716 mvm->noa_vif = NULL; 1717 mvm->noa_duration = 0; 1718 } 1719 #endif 1720 return true; 1721 } 1722 1723 iwl_mvm_power_update_mac(mvm); 1724 return false; 1725 } 1726 1727 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1728 struct ieee80211_vif *vif) 1729 { 1730 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1731 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1732 1733 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1734 goto out; 1735 1736 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1737 mvm->p2p_device_vif = NULL; 1738 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1739 iwl_mvm_binding_remove_vif(mvm, vif); 1740 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1741 mvmvif->deflink.phy_ctxt = NULL; 1742 } 1743 1744 iwl_mvm_mac_ctxt_remove(mvm, vif); 1745 1746 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1747 1748 if (vif->type == NL80211_IFTYPE_MONITOR) 1749 mvm->monitor_on = false; 1750 1751 out: 1752 if (vif->type == NL80211_IFTYPE_AP || 1753 vif->type == NL80211_IFTYPE_ADHOC) { 1754 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1755 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1756 } 1757 1758 mutex_unlock(&mvm->mutex); 1759 } 1760 1761 struct iwl_mvm_mc_iter_data { 1762 struct iwl_mvm *mvm; 1763 int port_id; 1764 }; 1765 1766 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1767 struct ieee80211_vif *vif) 1768 { 1769 struct iwl_mvm_mc_iter_data *data = _data; 1770 struct iwl_mvm *mvm = data->mvm; 1771 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1772 struct iwl_host_cmd hcmd = { 1773 .id = MCAST_FILTER_CMD, 1774 .flags = CMD_ASYNC, 1775 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1776 }; 1777 int ret, len; 1778 1779 /* if we don't have free ports, mcast frames will be dropped */ 1780 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1781 return; 1782 1783 if (vif->type != NL80211_IFTYPE_STATION || 1784 !vif->cfg.assoc) 1785 return; 1786 1787 cmd->port_id = data->port_id++; 1788 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1789 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1790 1791 hcmd.len[0] = len; 1792 hcmd.data[0] = cmd; 1793 1794 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1795 if (ret) 1796 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1797 } 1798 1799 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1800 { 1801 struct iwl_mvm_mc_iter_data iter_data = { 1802 .mvm = mvm, 1803 }; 1804 int ret; 1805 1806 lockdep_assert_held(&mvm->mutex); 1807 1808 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1809 return; 1810 1811 ieee80211_iterate_active_interfaces_atomic( 1812 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1813 iwl_mvm_mc_iface_iterator, &iter_data); 1814 1815 /* 1816 * Send a (synchronous) ech command so that we wait for the 1817 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1818 * the interface iterator. Otherwise, we might get here over 1819 * and over again (by userspace just sending a lot of these) 1820 * and the CPU can send them faster than the firmware can 1821 * process them. 1822 * Note that the CPU is still faster - but with this we'll 1823 * actually send fewer commands overall because the CPU will 1824 * not schedule the work in mac80211 as frequently if it's 1825 * still running when rescheduled (possibly multiple times). 1826 */ 1827 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1828 if (ret) 1829 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1830 } 1831 1832 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1833 struct netdev_hw_addr_list *mc_list) 1834 { 1835 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1836 struct iwl_mcast_filter_cmd *cmd; 1837 struct netdev_hw_addr *addr; 1838 int addr_count; 1839 bool pass_all; 1840 int len; 1841 1842 addr_count = netdev_hw_addr_list_count(mc_list); 1843 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1844 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1845 if (pass_all) 1846 addr_count = 0; 1847 1848 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1849 cmd = kzalloc(len, GFP_ATOMIC); 1850 if (!cmd) 1851 return 0; 1852 1853 if (pass_all) { 1854 cmd->pass_all = 1; 1855 return (u64)(unsigned long)cmd; 1856 } 1857 1858 netdev_hw_addr_list_for_each(addr, mc_list) { 1859 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1860 cmd->count, addr->addr); 1861 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1862 addr->addr, ETH_ALEN); 1863 cmd->count++; 1864 } 1865 1866 return (u64)(unsigned long)cmd; 1867 } 1868 1869 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1870 unsigned int changed_flags, 1871 unsigned int *total_flags, u64 multicast) 1872 { 1873 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1874 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1875 1876 mutex_lock(&mvm->mutex); 1877 1878 /* replace previous configuration */ 1879 kfree(mvm->mcast_filter_cmd); 1880 mvm->mcast_filter_cmd = cmd; 1881 1882 if (!cmd) 1883 goto out; 1884 1885 if (changed_flags & FIF_ALLMULTI) 1886 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1887 1888 if (cmd->pass_all) 1889 cmd->count = 0; 1890 1891 iwl_mvm_recalc_multicast(mvm); 1892 out: 1893 mutex_unlock(&mvm->mutex); 1894 *total_flags = 0; 1895 } 1896 1897 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1898 struct ieee80211_vif *vif, 1899 unsigned int filter_flags, 1900 unsigned int changed_flags) 1901 { 1902 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1903 1904 /* We support only filter for probe requests */ 1905 if (!(changed_flags & FIF_PROBE_REQ)) 1906 return; 1907 1908 /* Supported only for p2p client interfaces */ 1909 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1910 !vif->p2p) 1911 return; 1912 1913 mutex_lock(&mvm->mutex); 1914 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1915 mutex_unlock(&mvm->mutex); 1916 } 1917 1918 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1919 { 1920 struct iwl_mu_group_mgmt_cmd cmd = {}; 1921 1922 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1923 WLAN_MEMBERSHIP_LEN); 1924 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1925 WLAN_USER_POSITION_LEN); 1926 1927 return iwl_mvm_send_cmd_pdu(mvm, 1928 WIDE_ID(DATA_PATH_GROUP, 1929 UPDATE_MU_GROUPS_CMD), 1930 0, sizeof(cmd), &cmd); 1931 } 1932 1933 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1934 struct ieee80211_vif *vif) 1935 { 1936 if (vif->bss_conf.mu_mimo_owner) { 1937 struct iwl_mu_group_mgmt_notif *notif = _data; 1938 1939 /* 1940 * MU-MIMO Group Id action frame is little endian. We treat 1941 * the data received from firmware as if it came from the 1942 * action frame, so no conversion is needed. 1943 */ 1944 ieee80211_update_mu_groups(vif, 0, 1945 (u8 *)¬if->membership_status, 1946 (u8 *)¬if->user_position); 1947 } 1948 } 1949 1950 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1951 struct iwl_rx_cmd_buffer *rxb) 1952 { 1953 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1954 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1955 1956 ieee80211_iterate_active_interfaces_atomic( 1957 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1958 iwl_mvm_mu_mimo_iface_iterator, notif); 1959 } 1960 1961 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1962 { 1963 u8 byte_num = ppe_pos_bit / 8; 1964 u8 bit_num = ppe_pos_bit % 8; 1965 u8 residue_bits; 1966 u8 res; 1967 1968 if (bit_num <= 5) 1969 return (ppe[byte_num] >> bit_num) & 1970 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1971 1972 /* 1973 * If bit_num > 5, we have to combine bits with next byte. 1974 * Calculate how many bits we need to take from current byte (called 1975 * here "residue_bits"), and add them to bits from next byte. 1976 */ 1977 1978 residue_bits = 8 - bit_num; 1979 1980 res = (ppe[byte_num + 1] & 1981 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1982 residue_bits; 1983 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1984 1985 return res; 1986 } 1987 1988 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1989 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1990 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 1991 bool inheritance) 1992 { 1993 int i; 1994 1995 /* 1996 * FW currently supports only nss == MAX_HE_SUPP_NSS 1997 * 1998 * If nss > MAX: we can ignore values we don't support 1999 * If nss < MAX: we can set zeros in other streams 2000 */ 2001 if (nss > MAX_HE_SUPP_NSS) { 2002 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2003 MAX_HE_SUPP_NSS); 2004 nss = MAX_HE_SUPP_NSS; 2005 } 2006 2007 for (i = 0; i < nss; i++) { 2008 u8 ru_index_tmp = ru_index_bitmap << 1; 2009 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2010 u8 bw; 2011 2012 for (bw = 0; 2013 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2014 bw++) { 2015 ru_index_tmp >>= 1; 2016 2017 /* 2018 * According to the 11be spec, if for a specific BW the PPE Thresholds 2019 * isn't present - it should inherit the thresholds from the last 2020 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2021 * this inheritance - continue in this case 2022 */ 2023 if (!(ru_index_tmp & 1)) { 2024 if (inheritance) 2025 goto set_thresholds; 2026 else 2027 continue; 2028 } 2029 2030 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2031 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2032 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2033 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2034 2035 set_thresholds: 2036 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2037 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2038 } 2039 } 2040 } 2041 2042 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2043 struct ieee80211_link_sta *link_sta, 2044 struct iwl_he_pkt_ext_v2 *pkt_ext, 2045 bool inheritance) 2046 { 2047 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2048 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2049 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2050 u8 ru_index_bitmap = 2051 u8_get_bits(*ppe, 2052 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2053 /* Starting after PPE header */ 2054 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2055 2056 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2057 inheritance); 2058 } 2059 2060 static int 2061 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2062 u8 nominal_padding) 2063 { 2064 int low_th = -1; 2065 int high_th = -1; 2066 int i; 2067 2068 /* all the macros are the same for EHT and HE */ 2069 switch (nominal_padding) { 2070 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2071 low_th = IWL_HE_PKT_EXT_NONE; 2072 high_th = IWL_HE_PKT_EXT_NONE; 2073 break; 2074 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2075 low_th = IWL_HE_PKT_EXT_BPSK; 2076 high_th = IWL_HE_PKT_EXT_NONE; 2077 break; 2078 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2079 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2080 low_th = IWL_HE_PKT_EXT_NONE; 2081 high_th = IWL_HE_PKT_EXT_BPSK; 2082 break; 2083 } 2084 2085 if (low_th < 0 || high_th < 0) 2086 return -EINVAL; 2087 2088 /* Set the PPE thresholds accordingly */ 2089 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2090 u8 bw; 2091 2092 for (bw = 0; 2093 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2094 bw++) { 2095 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2096 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2097 } 2098 } 2099 2100 return 0; 2101 } 2102 2103 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2104 u8 nominal_padding) 2105 { 2106 int i; 2107 2108 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2109 u8 bw; 2110 2111 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2112 bw++) { 2113 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2114 2115 if (nominal_padding > 2116 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2117 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2118 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2119 else if (nominal_padding == 2120 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2121 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2122 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2123 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2124 } 2125 } 2126 } 2127 2128 /* Set the pkt_ext field according to PPE Thresholds element */ 2129 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2130 struct ieee80211_link_sta *link_sta, 2131 struct iwl_he_pkt_ext_v2 *pkt_ext) 2132 { 2133 u8 nominal_padding; 2134 int i, ret = 0; 2135 2136 if (WARN_ON(!link_sta)) 2137 return -EINVAL; 2138 2139 /* Initialize the PPE thresholds to "None" (7), as described in Table 2140 * 9-262ac of 80211.ax/D3.0. 2141 */ 2142 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2143 sizeof(struct iwl_he_pkt_ext_v2)); 2144 2145 if (link_sta->eht_cap.has_eht) { 2146 nominal_padding = 2147 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2148 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2149 2150 /* If PPE Thresholds exists, parse them into a FW-familiar 2151 * format. 2152 */ 2153 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2154 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2155 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2156 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2157 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2158 u8 ru_index_bitmap = 2159 u16_get_bits(*ppe, 2160 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2161 /* Starting after PPE header */ 2162 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2163 2164 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2165 ppe, ppe_pos_bit, true); 2166 /* EHT PPE Thresholds doesn't exist - set the API according to 2167 * HE PPE Tresholds 2168 */ 2169 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2170 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2171 /* Even though HE Capabilities IE doesn't contain PPE 2172 * Thresholds for BW 320Mhz, thresholds for this BW will 2173 * be filled in with the same values as 160Mhz, due to 2174 * the inheritance, as required. 2175 */ 2176 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2177 true); 2178 2179 /* According to the requirements, for MCSs 12-13 the 2180 * maximum value between HE PPE Threshold and Common 2181 * Nominal Packet Padding needs to be taken 2182 */ 2183 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2184 2185 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2186 * take the Thresholds from Common Nominal Packet Padding field 2187 */ 2188 } else { 2189 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2190 nominal_padding); 2191 } 2192 } else if (link_sta->he_cap.has_he) { 2193 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2194 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2195 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2196 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2197 false); 2198 /* PPE Thresholds doesn't exist - set the API PPE values 2199 * according to Common Nominal Packet Padding field. 2200 */ 2201 } else { 2202 nominal_padding = 2203 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2204 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2205 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2206 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2207 nominal_padding); 2208 } 2209 } 2210 2211 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2212 int bw; 2213 2214 for (bw = 0; 2215 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2216 bw++) { 2217 u8 *qam_th = 2218 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2219 2220 IWL_DEBUG_HT(mvm, 2221 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2222 i, bw, qam_th[0], qam_th[1]); 2223 } 2224 } 2225 return ret; 2226 } 2227 2228 /* 2229 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2230 * is enabled or not 2231 */ 2232 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2233 struct iwl_mvm_vif *mvmvif, 2234 struct iwl_he_backoff_conf *trig_based_txf) 2235 { 2236 int i; 2237 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2238 bool mu_edca_enabled = true; 2239 2240 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2241 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2242 &mvmvif->deflink.queue_params[i].mu_edca_param_rec; 2243 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2244 2245 if (!mvmvif->deflink.queue_params[i].mu_edca) { 2246 mu_edca_enabled = false; 2247 break; 2248 } 2249 2250 trig_based_txf[ac].cwmin = 2251 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2252 trig_based_txf[ac].cwmax = 2253 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2254 trig_based_txf[ac].aifsn = 2255 cpu_to_le16(mu_edca->aifsn & 0xf); 2256 trig_based_txf[ac].mu_time = 2257 cpu_to_le16(mu_edca->mu_edca_timer); 2258 } 2259 2260 return mu_edca_enabled; 2261 } 2262 2263 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2264 { 2265 const struct ieee80211_supported_band *sband; 2266 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2267 2268 /* This capability is the same for all bands, 2269 * so take it from one of them. 2270 */ 2271 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2272 own_he_cap = ieee80211_get_he_iftype_cap(sband, 2273 ieee80211_vif_type_p2p(vif)); 2274 2275 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2276 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2277 } 2278 2279 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2280 struct ieee80211_link_sta *link_sta) 2281 { 2282 u8 *mac_cap_info = 2283 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2284 __le32 htc_flags = 0; 2285 2286 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2287 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2288 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2289 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2290 u8 link_adap = 2291 ((mac_cap_info[2] & 2292 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2293 (mac_cap_info[1] & 2294 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2295 2296 if (link_adap == 2) 2297 htc_flags |= 2298 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2299 else if (link_adap == 3) 2300 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2301 } 2302 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2303 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2304 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2305 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2306 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2307 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2308 2309 return htc_flags; 2310 } 2311 2312 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2313 struct ieee80211_vif *vif, u8 sta_id) 2314 { 2315 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2316 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2317 .sta_id = sta_id, 2318 .tid_limit = IWL_MAX_TID_COUNT, 2319 .bss_color = vif->bss_conf.he_bss_color.color, 2320 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2321 .frame_time_rts_th = 2322 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2323 }; 2324 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2325 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2326 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2327 int size; 2328 struct ieee80211_sta *sta; 2329 u32 flags; 2330 int i; 2331 void *cmd; 2332 2333 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2334 ver = 1; 2335 2336 switch (ver) { 2337 case 1: 2338 /* same layout as v2 except some data at the end */ 2339 cmd = &sta_ctxt_cmd_v2; 2340 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2341 break; 2342 case 2: 2343 cmd = &sta_ctxt_cmd_v2; 2344 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2345 break; 2346 case 3: 2347 cmd = &sta_ctxt_cmd; 2348 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2349 break; 2350 default: 2351 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2352 return; 2353 } 2354 2355 rcu_read_lock(); 2356 2357 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2358 if (IS_ERR_OR_NULL(sta)) { 2359 rcu_read_unlock(); 2360 WARN(1, "Can't find STA to configure HE\n"); 2361 return; 2362 } 2363 2364 if (!sta->deflink.he_cap.has_he) { 2365 rcu_read_unlock(); 2366 return; 2367 } 2368 2369 flags = 0; 2370 2371 /* Block 26-tone RU OFDMA transmissions */ 2372 if (mvmvif->deflink.he_ru_2mhz_block) 2373 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2374 2375 /* HTC flags */ 2376 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2377 2378 /* PPE Thresholds */ 2379 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2380 flags |= STA_CTXT_HE_PACKET_EXT; 2381 2382 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2383 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2384 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2385 2386 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2387 IEEE80211_HE_MAC_CAP2_ACK_EN) 2388 flags |= STA_CTXT_HE_ACK_ENABLED; 2389 2390 rcu_read_unlock(); 2391 2392 if (iwl_mvm_set_fw_mu_edca_params(mvm, mvmvif, 2393 &sta_ctxt_cmd.trig_based_txf[0])) 2394 flags |= STA_CTXT_HE_MU_EDCA_CW; 2395 2396 if (vif->bss_conf.uora_exists) { 2397 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2398 2399 sta_ctxt_cmd.rand_alloc_ecwmin = 2400 vif->bss_conf.uora_ocw_range & 0x7; 2401 sta_ctxt_cmd.rand_alloc_ecwmax = 2402 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2403 } 2404 2405 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2406 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2407 2408 if (vif->bss_conf.nontransmitted) { 2409 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2410 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2411 vif->bss_conf.transmitter_bssid); 2412 sta_ctxt_cmd.max_bssid_indicator = 2413 vif->bss_conf.bssid_indicator; 2414 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2415 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2416 sta_ctxt_cmd.profile_periodicity = 2417 vif->bss_conf.profile_periodicity; 2418 } 2419 2420 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2421 2422 if (ver < 3) { 2423 /* fields before pkt_ext */ 2424 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2425 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2426 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2427 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2428 2429 /* pkt_ext */ 2430 for (i = 0; 2431 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2432 i++) { 2433 u8 bw; 2434 2435 for (bw = 0; 2436 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2437 bw++) { 2438 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2439 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2440 2441 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2442 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2443 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2444 } 2445 } 2446 2447 /* fields after pkt_ext */ 2448 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2449 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2450 sizeof(sta_ctxt_cmd_v2) - 2451 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2452 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2453 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2454 (u8 *)&sta_ctxt_cmd + 2455 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2456 sizeof(sta_ctxt_cmd) - 2457 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2458 sta_ctxt_cmd_v2.reserved3 = 0; 2459 } 2460 2461 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2462 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2463 } 2464 2465 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2466 u32 duration_override) 2467 { 2468 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2469 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2470 2471 if (duration_override > duration) 2472 duration = duration_override; 2473 2474 /* Try really hard to protect the session and hear a beacon 2475 * The new session protection command allows us to protect the 2476 * session for a much longer time since the firmware will internally 2477 * create two events: a 300TU one with a very high priority that 2478 * won't be fragmented which should be enough for 99% of the cases, 2479 * and another one (which we configure here to be 900TU long) which 2480 * will have a slightly lower priority, but more importantly, can be 2481 * fragmented so that it'll allow other activities to run. 2482 */ 2483 if (fw_has_capa(&mvm->fw->ucode_capa, 2484 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2485 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2486 min_duration, false); 2487 else 2488 iwl_mvm_protect_session(mvm, vif, duration, 2489 min_duration, 500, false); 2490 } 2491 2492 /* Handle association common part to MLD and non-MLD modes */ 2493 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2494 struct ieee80211_vif *vif, 2495 u64 changes) 2496 { 2497 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2498 int ret; 2499 2500 /* The firmware tracks the MU-MIMO group on its own. 2501 * However, on HW restart we should restore this data. 2502 */ 2503 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2504 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2505 ret = iwl_mvm_update_mu_groups(mvm, vif); 2506 if (ret) 2507 IWL_ERR(mvm, 2508 "failed to update VHT MU_MIMO groups\n"); 2509 } 2510 2511 iwl_mvm_recalc_multicast(mvm); 2512 2513 /* reset rssi values */ 2514 mvmvif->bf_data.ave_beacon_signal = 0; 2515 2516 iwl_mvm_bt_coex_vif_change(mvm); 2517 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2518 IEEE80211_SMPS_AUTOMATIC); 2519 if (fw_has_capa(&mvm->fw->ucode_capa, 2520 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2521 iwl_mvm_config_scan(mvm); 2522 } 2523 2524 /* Execute the common part for MLD and non-MLD modes */ 2525 void 2526 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2527 struct ieee80211_vif *vif, 2528 struct ieee80211_bss_conf *link_conf, 2529 u64 changes) 2530 { 2531 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2532 int ret; 2533 2534 if (changes & BSS_CHANGED_BEACON_INFO) { 2535 /* We received a beacon from the associated AP so 2536 * remove the session protection. 2537 */ 2538 iwl_mvm_stop_session_protection(mvm, vif); 2539 2540 iwl_mvm_sf_update(mvm, vif, false); 2541 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2542 } 2543 2544 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2545 /* Send power command on every beacon change, 2546 * because we may have not enabled beacon abort yet. 2547 */ 2548 BSS_CHANGED_BEACON_INFO)) { 2549 ret = iwl_mvm_power_update_mac(mvm); 2550 if (ret) 2551 IWL_ERR(mvm, "failed to update power mode\n"); 2552 } 2553 2554 if (changes & BSS_CHANGED_CQM) { 2555 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2556 /* reset cqm events tracking */ 2557 mvmvif->bf_data.last_cqm_event = 0; 2558 if (mvmvif->bf_data.bf_enabled) { 2559 /* FIXME: need to update per link when FW API will 2560 * support it 2561 */ 2562 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2563 if (ret) 2564 IWL_ERR(mvm, 2565 "failed to update CQM thresholds\n"); 2566 } 2567 } 2568 2569 if (changes & BSS_CHANGED_BANDWIDTH) 2570 iwl_mvm_update_link_smps(vif, link_conf); 2571 } 2572 2573 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2574 struct ieee80211_vif *vif, 2575 struct ieee80211_bss_conf *bss_conf, 2576 u64 changes) 2577 { 2578 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2579 int ret; 2580 2581 /* 2582 * Re-calculate the tsf id, as the leader-follower relations depend 2583 * on the beacon interval, which was not known when the station 2584 * interface was added. 2585 */ 2586 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2587 if ((vif->bss_conf.he_support && 2588 !iwlwifi_mod_params.disable_11ax) || 2589 (vif->bss_conf.eht_support && 2590 !iwlwifi_mod_params.disable_11be)) 2591 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2592 2593 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2594 } 2595 2596 /* Update MU EDCA params */ 2597 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2598 vif->cfg.assoc && 2599 ((vif->bss_conf.he_support && 2600 !iwlwifi_mod_params.disable_11ax) || 2601 (vif->bss_conf.eht_support && 2602 !iwlwifi_mod_params.disable_11be))) 2603 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2604 2605 /* 2606 * If we're not associated yet, take the (new) BSSID before associating 2607 * so the firmware knows. If we're already associated, then use the old 2608 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2609 * branch for disassociation below. 2610 */ 2611 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2612 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2613 2614 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2615 if (ret) 2616 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2617 2618 /* after sending it once, adopt mac80211 data */ 2619 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2620 mvmvif->associated = vif->cfg.assoc; 2621 2622 if (changes & BSS_CHANGED_ASSOC) { 2623 if (vif->cfg.assoc) { 2624 /* clear statistics to get clean beacon counter */ 2625 iwl_mvm_request_statistics(mvm, true); 2626 memset(&mvmvif->deflink.beacon_stats, 0, 2627 sizeof(mvmvif->deflink.beacon_stats)); 2628 2629 /* add quota for this interface */ 2630 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2631 if (ret) { 2632 IWL_ERR(mvm, "failed to update quotas\n"); 2633 return; 2634 } 2635 2636 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2637 &mvm->status) && 2638 !fw_has_capa(&mvm->fw->ucode_capa, 2639 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2640 /* 2641 * If we're restarting then the firmware will 2642 * obviously have lost synchronisation with 2643 * the AP. It will attempt to synchronise by 2644 * itself, but we can make it more reliable by 2645 * scheduling a session protection time event. 2646 * 2647 * The firmware needs to receive a beacon to 2648 * catch up with synchronisation, use 110% of 2649 * the beacon interval. 2650 * 2651 * Set a large maximum delay to allow for more 2652 * than a single interface. 2653 * 2654 * For new firmware versions, rely on the 2655 * firmware. This is relevant for DCM scenarios 2656 * only anyway. 2657 */ 2658 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2659 iwl_mvm_protect_session(mvm, vif, dur, dur, 2660 5 * dur, false); 2661 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2662 &mvm->status) && 2663 !vif->bss_conf.dtim_period) { 2664 /* 2665 * If we're not restarting and still haven't 2666 * heard a beacon (dtim period unknown) then 2667 * make sure we still have enough minimum time 2668 * remaining in the time event, since the auth 2669 * might actually have taken quite a while 2670 * (especially for SAE) and so the remaining 2671 * time could be small without us having heard 2672 * a beacon yet. 2673 */ 2674 iwl_mvm_protect_assoc(mvm, vif, 0); 2675 } 2676 2677 iwl_mvm_sf_update(mvm, vif, false); 2678 iwl_mvm_power_vif_assoc(mvm, vif); 2679 if (vif->p2p) { 2680 iwl_mvm_update_smps(mvm, vif, 2681 IWL_MVM_SMPS_REQ_PROT, 2682 IEEE80211_SMPS_DYNAMIC, 0); 2683 } 2684 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2685 iwl_mvm_mei_host_disassociated(mvm); 2686 /* 2687 * If update fails - SF might be running in associated 2688 * mode while disassociated - which is forbidden. 2689 */ 2690 ret = iwl_mvm_sf_update(mvm, vif, false); 2691 WARN_ONCE(ret && 2692 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2693 &mvm->status), 2694 "Failed to update SF upon disassociation\n"); 2695 2696 /* 2697 * If we get an assert during the connection (after the 2698 * station has been added, but before the vif is set 2699 * to associated), mac80211 will re-add the station and 2700 * then configure the vif. Since the vif is not 2701 * associated, we would remove the station here and 2702 * this would fail the recovery. 2703 */ 2704 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2705 &mvm->status)) { 2706 /* first remove remaining keys */ 2707 iwl_mvm_sec_key_remove_ap(mvm, vif, 2708 &mvmvif->deflink, 0); 2709 2710 /* 2711 * Remove AP station now that 2712 * the MAC is unassoc 2713 */ 2714 ret = iwl_mvm_rm_sta_id(mvm, vif, 2715 mvmvif->deflink.ap_sta_id); 2716 if (ret) 2717 IWL_ERR(mvm, 2718 "failed to remove AP station\n"); 2719 2720 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2721 } 2722 2723 /* remove quota for this interface */ 2724 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2725 if (ret) 2726 IWL_ERR(mvm, "failed to update quotas\n"); 2727 2728 /* this will take the cleared BSSID from bss_conf */ 2729 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2730 if (ret) 2731 IWL_ERR(mvm, 2732 "failed to update MAC %pM (clear after unassoc)\n", 2733 vif->addr); 2734 } 2735 2736 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2737 } 2738 2739 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2740 changes); 2741 } 2742 2743 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2744 struct ieee80211_vif *vif, 2745 int *ret) 2746 { 2747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2748 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2749 int i; 2750 2751 lockdep_assert_held(&mvm->mutex); 2752 2753 mvmvif->ap_assoc_sta_count = 0; 2754 2755 /* must be set before quota calculations */ 2756 mvmvif->ap_ibss_active = true; 2757 2758 /* send all the early keys to the device now */ 2759 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2760 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2761 2762 if (!key) 2763 continue; 2764 2765 mvmvif->ap_early_keys[i] = NULL; 2766 2767 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2768 if (*ret) 2769 return true; 2770 } 2771 2772 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2773 iwl_mvm_vif_set_low_latency(mvmvif, true, 2774 LOW_LATENCY_VIF_TYPE); 2775 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2776 } 2777 2778 /* power updated needs to be done before quotas */ 2779 iwl_mvm_power_update_mac(mvm); 2780 2781 return false; 2782 } 2783 2784 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2785 struct ieee80211_vif *vif, 2786 struct ieee80211_bss_conf *link_conf) 2787 { 2788 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2789 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2790 int ret; 2791 2792 mutex_lock(&mvm->mutex); 2793 2794 /* 2795 * Re-calculate the tsf id, as the leader-follower relations depend on 2796 * the beacon interval, which was not known when the AP interface 2797 * was added. 2798 */ 2799 if (vif->type == NL80211_IFTYPE_AP) 2800 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2801 2802 /* For older devices need to send beacon template before adding mac 2803 * context. For the newer, the beacon is a resource that belongs to a 2804 * MAC, so need to send beacon template after adding the mac. 2805 */ 2806 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2807 /* Add the mac context */ 2808 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2809 if (ret) 2810 goto out_unlock; 2811 2812 /* Send the beacon template */ 2813 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2814 if (ret) 2815 goto out_unlock; 2816 } else { 2817 /* Send the beacon template */ 2818 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2819 if (ret) 2820 goto out_unlock; 2821 2822 /* Add the mac context */ 2823 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2824 if (ret) 2825 goto out_unlock; 2826 } 2827 2828 /* Perform the binding */ 2829 ret = iwl_mvm_binding_add_vif(mvm, vif); 2830 if (ret) 2831 goto out_remove; 2832 2833 /* 2834 * This is not very nice, but the simplest: 2835 * For older FWs adding the mcast sta before the bcast station may 2836 * cause assert 0x2b00. 2837 * This is fixed in later FW so make the order of removal depend on 2838 * the TLV 2839 */ 2840 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2841 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2842 if (ret) 2843 goto out_unbind; 2844 /* 2845 * Send the bcast station. At this stage the TBTT and DTIM time 2846 * events are added and applied to the scheduler 2847 */ 2848 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2849 if (ret) { 2850 iwl_mvm_rm_mcast_sta(mvm, vif); 2851 goto out_unbind; 2852 } 2853 } else { 2854 /* 2855 * Send the bcast station. At this stage the TBTT and DTIM time 2856 * events are added and applied to the scheduler 2857 */ 2858 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2859 if (ret) 2860 goto out_unbind; 2861 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2862 if (ret) { 2863 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2864 goto out_unbind; 2865 } 2866 } 2867 2868 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2869 goto out_failed; 2870 2871 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2872 if (ret) 2873 goto out_failed; 2874 2875 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2876 if (vif->p2p && mvm->p2p_device_vif) 2877 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2878 2879 iwl_mvm_bt_coex_vif_change(mvm); 2880 2881 /* we don't support TDLS during DCM */ 2882 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2883 iwl_mvm_teardown_tdls_peers(mvm); 2884 2885 iwl_mvm_ftm_restart_responder(mvm, vif); 2886 2887 goto out_unlock; 2888 2889 out_failed: 2890 iwl_mvm_power_update_mac(mvm); 2891 mvmvif->ap_ibss_active = false; 2892 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2893 iwl_mvm_rm_mcast_sta(mvm, vif); 2894 out_unbind: 2895 iwl_mvm_binding_remove_vif(mvm, vif); 2896 out_remove: 2897 iwl_mvm_mac_ctxt_remove(mvm, vif); 2898 out_unlock: 2899 mutex_unlock(&mvm->mutex); 2900 return ret; 2901 } 2902 2903 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2904 struct ieee80211_vif *vif, 2905 struct ieee80211_bss_conf *link_conf) 2906 { 2907 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2908 } 2909 2910 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2911 struct ieee80211_vif *vif) 2912 { 2913 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2914 } 2915 2916 /* Common part for MLD and non-MLD ops */ 2917 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2918 struct ieee80211_vif *vif) 2919 { 2920 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2921 2922 lockdep_assert_held(&mvm->mutex); 2923 2924 iwl_mvm_prepare_mac_removal(mvm, vif); 2925 2926 /* Handle AP stop while in CSA */ 2927 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2928 iwl_mvm_remove_time_event(mvm, mvmvif, 2929 &mvmvif->time_event_data); 2930 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2931 mvmvif->csa_countdown = false; 2932 } 2933 2934 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2935 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2936 mvm->csa_tx_block_bcn_timeout = 0; 2937 } 2938 2939 mvmvif->ap_ibss_active = false; 2940 mvm->ap_last_beacon_gp2 = 0; 2941 2942 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2943 iwl_mvm_vif_set_low_latency(mvmvif, false, 2944 LOW_LATENCY_VIF_TYPE); 2945 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2946 } 2947 2948 iwl_mvm_bt_coex_vif_change(mvm); 2949 } 2950 2951 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2952 struct ieee80211_vif *vif, 2953 struct ieee80211_bss_conf *link_conf) 2954 { 2955 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2956 2957 mutex_lock(&mvm->mutex); 2958 2959 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2960 2961 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2962 if (vif->p2p && mvm->p2p_device_vif) 2963 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2964 2965 iwl_mvm_update_quotas(mvm, false, NULL); 2966 2967 iwl_mvm_ftm_responder_clear(mvm, vif); 2968 2969 /* 2970 * This is not very nice, but the simplest: 2971 * For older FWs removing the mcast sta before the bcast station may 2972 * cause assert 0x2b00. 2973 * This is fixed in later FW (which will stop beaconing when removing 2974 * bcast station). 2975 * So make the order of removal depend on the TLV 2976 */ 2977 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2978 iwl_mvm_rm_mcast_sta(mvm, vif); 2979 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2980 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2981 iwl_mvm_rm_mcast_sta(mvm, vif); 2982 iwl_mvm_binding_remove_vif(mvm, vif); 2983 2984 iwl_mvm_power_update_mac(mvm); 2985 2986 iwl_mvm_mac_ctxt_remove(mvm, vif); 2987 2988 mutex_unlock(&mvm->mutex); 2989 } 2990 2991 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 2992 struct ieee80211_vif *vif, 2993 struct ieee80211_bss_conf *link_conf) 2994 { 2995 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 2996 } 2997 2998 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 2999 struct ieee80211_vif *vif) 3000 { 3001 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3002 } 3003 3004 static void 3005 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3006 struct ieee80211_vif *vif, 3007 struct ieee80211_bss_conf *bss_conf, 3008 u64 changes) 3009 { 3010 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3011 3012 /* Changes will be applied when the AP/IBSS is started */ 3013 if (!mvmvif->ap_ibss_active) 3014 return; 3015 3016 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3017 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3018 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3019 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3020 3021 /* Need to send a new beacon template to the FW */ 3022 if (changes & BSS_CHANGED_BEACON && 3023 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3024 IWL_WARN(mvm, "Failed updating beacon data\n"); 3025 3026 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3027 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 3028 3029 if (ret) 3030 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3031 ret); 3032 } 3033 3034 } 3035 3036 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3037 struct ieee80211_vif *vif, 3038 struct ieee80211_bss_conf *bss_conf, 3039 u64 changes) 3040 { 3041 static const struct iwl_mvm_bss_info_changed_ops callbacks = { 3042 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3043 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3044 }; 3045 3046 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3047 changes); 3048 } 3049 3050 void 3051 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3052 struct ieee80211_vif *vif, 3053 struct ieee80211_bss_conf *bss_conf, 3054 const struct iwl_mvm_bss_info_changed_ops *callbacks, 3055 u64 changes) 3056 { 3057 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3058 3059 mutex_lock(&mvm->mutex); 3060 3061 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3062 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3063 3064 switch (vif->type) { 3065 case NL80211_IFTYPE_STATION: 3066 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3067 break; 3068 case NL80211_IFTYPE_AP: 3069 case NL80211_IFTYPE_ADHOC: 3070 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3071 changes); 3072 break; 3073 case NL80211_IFTYPE_MONITOR: 3074 if (changes & BSS_CHANGED_MU_GROUPS) 3075 iwl_mvm_update_mu_groups(mvm, vif); 3076 break; 3077 default: 3078 /* shouldn't happen */ 3079 WARN_ON_ONCE(1); 3080 } 3081 3082 if (changes & BSS_CHANGED_TXPOWER) { 3083 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3084 bss_conf->txpower); 3085 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3086 } 3087 3088 mutex_unlock(&mvm->mutex); 3089 } 3090 3091 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3092 struct ieee80211_scan_request *hw_req) 3093 { 3094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3095 int ret; 3096 3097 if (hw_req->req.n_channels == 0 || 3098 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3099 return -EINVAL; 3100 3101 mutex_lock(&mvm->mutex); 3102 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3103 mutex_unlock(&mvm->mutex); 3104 3105 return ret; 3106 } 3107 3108 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3109 struct ieee80211_vif *vif) 3110 { 3111 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3112 3113 mutex_lock(&mvm->mutex); 3114 3115 /* Due to a race condition, it's possible that mac80211 asks 3116 * us to stop a hw_scan when it's already stopped. This can 3117 * happen, for instance, if we stopped the scan ourselves, 3118 * called ieee80211_scan_completed() and the userspace called 3119 * cancel scan scan before ieee80211_scan_work() could run. 3120 * To handle that, simply return if the scan is not running. 3121 */ 3122 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3123 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3124 3125 mutex_unlock(&mvm->mutex); 3126 } 3127 3128 void 3129 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3130 struct ieee80211_sta *sta, u16 tids, 3131 int num_frames, 3132 enum ieee80211_frame_release_type reason, 3133 bool more_data) 3134 { 3135 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3136 3137 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3138 3139 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3140 tids, more_data, false); 3141 } 3142 3143 void 3144 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3145 struct ieee80211_sta *sta, u16 tids, 3146 int num_frames, 3147 enum ieee80211_frame_release_type reason, 3148 bool more_data) 3149 { 3150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3151 3152 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3153 3154 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3155 tids, more_data, true); 3156 } 3157 3158 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3159 enum sta_notify_cmd cmd, 3160 struct ieee80211_sta *sta) 3161 { 3162 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3163 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3164 unsigned long txqs = 0, tids = 0; 3165 int tid; 3166 3167 /* 3168 * If we have TVQM then we get too high queue numbers - luckily 3169 * we really shouldn't get here with that because such hardware 3170 * should have firmware supporting buffer station offload. 3171 */ 3172 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3173 return; 3174 3175 spin_lock_bh(&mvmsta->lock); 3176 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3177 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3178 3179 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3180 continue; 3181 3182 __set_bit(tid_data->txq_id, &txqs); 3183 3184 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3185 continue; 3186 3187 __set_bit(tid, &tids); 3188 } 3189 3190 switch (cmd) { 3191 case STA_NOTIFY_SLEEP: 3192 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3193 ieee80211_sta_set_buffered(sta, tid, true); 3194 3195 if (txqs) 3196 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3197 /* 3198 * The fw updates the STA to be asleep. Tx packets on the Tx 3199 * queues to this station will not be transmitted. The fw will 3200 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3201 */ 3202 break; 3203 case STA_NOTIFY_AWAKE: 3204 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3205 break; 3206 3207 if (txqs) 3208 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3209 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3210 break; 3211 default: 3212 break; 3213 } 3214 spin_unlock_bh(&mvmsta->lock); 3215 } 3216 3217 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3218 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3219 { 3220 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3221 } 3222 3223 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3224 { 3225 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3226 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3227 struct ieee80211_sta *sta; 3228 struct iwl_mvm_sta *mvmsta; 3229 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3230 3231 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3232 return; 3233 3234 rcu_read_lock(); 3235 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3236 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3237 rcu_read_unlock(); 3238 return; 3239 } 3240 3241 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3242 3243 if (!mvmsta->vif || 3244 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3245 rcu_read_unlock(); 3246 return; 3247 } 3248 3249 if (mvmsta->sleeping != sleeping) { 3250 mvmsta->sleeping = sleeping; 3251 __iwl_mvm_mac_sta_notify(mvm->hw, 3252 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3253 sta); 3254 ieee80211_sta_ps_transition(sta, sleeping); 3255 } 3256 3257 if (sleeping) { 3258 switch (notif->type) { 3259 case IWL_MVM_PM_EVENT_AWAKE: 3260 case IWL_MVM_PM_EVENT_ASLEEP: 3261 break; 3262 case IWL_MVM_PM_EVENT_UAPSD: 3263 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3264 break; 3265 case IWL_MVM_PM_EVENT_PS_POLL: 3266 ieee80211_sta_pspoll(sta); 3267 break; 3268 default: 3269 break; 3270 } 3271 } 3272 3273 rcu_read_unlock(); 3274 } 3275 3276 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3277 struct ieee80211_vif *vif, 3278 struct ieee80211_sta *sta) 3279 { 3280 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3281 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3282 unsigned int link_id; 3283 3284 /* 3285 * This is called before mac80211 does RCU synchronisation, 3286 * so here we already invalidate our internal RCU-protected 3287 * station pointer. The rest of the code will thus no longer 3288 * be able to find the station this way, and we don't rely 3289 * on further RCU synchronisation after the sta_state() 3290 * callback deleted the station. 3291 * Since there's mvm->mutex here, no need to have RCU lock for 3292 * mvm_sta->link access. 3293 */ 3294 mutex_lock(&mvm->mutex); 3295 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3296 struct iwl_mvm_link_sta *link_sta; 3297 u32 sta_id; 3298 3299 if (!mvm_sta->link[link_id]) 3300 continue; 3301 3302 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3303 lockdep_is_held(&mvm->mutex)); 3304 sta_id = link_sta->sta_id; 3305 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3306 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3307 ERR_PTR(-ENOENT)); 3308 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3309 } 3310 } 3311 mutex_unlock(&mvm->mutex); 3312 } 3313 3314 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3315 const u8 *bssid) 3316 { 3317 int i; 3318 3319 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3320 struct iwl_mvm_tcm_mac *mdata; 3321 3322 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3323 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3324 mdata->opened_rx_ba_sessions = false; 3325 } 3326 3327 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3328 return; 3329 3330 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3331 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3332 return; 3333 } 3334 3335 if (!vif->p2p && 3336 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3337 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3338 return; 3339 } 3340 3341 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3342 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3343 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3344 return; 3345 } 3346 } 3347 3348 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3349 } 3350 3351 static void 3352 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3353 struct ieee80211_vif *vif, u8 *peer_addr, 3354 enum nl80211_tdls_operation action) 3355 { 3356 struct iwl_fw_dbg_trigger_tlv *trig; 3357 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3358 3359 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3360 FW_DBG_TRIGGER_TDLS); 3361 if (!trig) 3362 return; 3363 3364 tdls_trig = (void *)trig->data; 3365 3366 if (!(tdls_trig->action_bitmap & BIT(action))) 3367 return; 3368 3369 if (tdls_trig->peer_mode && 3370 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3371 return; 3372 3373 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3374 "TDLS event occurred, peer %pM, action %d", 3375 peer_addr, action); 3376 } 3377 3378 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3379 bool tolerated; 3380 }; 3381 3382 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3383 struct cfg80211_bss *bss, 3384 void *_data) 3385 { 3386 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3387 const struct cfg80211_bss_ies *ies; 3388 const struct element *elem; 3389 3390 rcu_read_lock(); 3391 ies = rcu_dereference(bss->ies); 3392 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3393 ies->len); 3394 3395 if (!elem || elem->datalen < 10 || 3396 !(elem->data[10] & 3397 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3398 data->tolerated = false; 3399 } 3400 rcu_read_unlock(); 3401 } 3402 3403 static void 3404 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3405 struct ieee80211_vif *vif, 3406 unsigned int link_id, 3407 struct ieee80211_bss_conf *link_conf) 3408 { 3409 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3410 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3411 .tolerated = true, 3412 }; 3413 3414 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3415 !mvmvif->link[link_id])) 3416 return; 3417 3418 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3419 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3420 return; 3421 } 3422 3423 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3424 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3425 &iter_data); 3426 3427 /* 3428 * If there is at least one AP on radar channel that cannot 3429 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3430 */ 3431 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3432 } 3433 3434 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3435 struct ieee80211_vif *vif) 3436 { 3437 struct ieee80211_supported_band *sband; 3438 const struct ieee80211_sta_he_cap *he_cap; 3439 3440 if (vif->type != NL80211_IFTYPE_STATION) 3441 return; 3442 3443 if (!mvm->cca_40mhz_workaround) 3444 return; 3445 3446 /* decrement and check that we reached zero */ 3447 mvm->cca_40mhz_workaround--; 3448 if (mvm->cca_40mhz_workaround) 3449 return; 3450 3451 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3452 3453 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3454 3455 he_cap = ieee80211_get_he_iftype_cap(sband, 3456 ieee80211_vif_type_p2p(vif)); 3457 3458 if (he_cap) { 3459 /* we know that ours is writable */ 3460 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3461 3462 he->he_cap_elem.phy_cap_info[0] |= 3463 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3464 } 3465 } 3466 3467 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3468 struct ieee80211_vif *vif, 3469 struct iwl_mvm_sta *mvm_sta) 3470 { 3471 #if IS_ENABLED(CONFIG_IWLMEI) 3472 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3473 struct iwl_mei_conn_info conn_info = { 3474 .ssid_len = vif->cfg.ssid_len, 3475 }; 3476 3477 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3478 return; 3479 3480 if (!mvm->mei_registered) 3481 return; 3482 3483 /* FIXME: MEI needs to be updated for MLO */ 3484 if (!vif->bss_conf.chandef.chan) 3485 return; 3486 3487 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3488 3489 switch (mvm_sta->pairwise_cipher) { 3490 case WLAN_CIPHER_SUITE_TKIP: 3491 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3492 break; 3493 case WLAN_CIPHER_SUITE_CCMP: 3494 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3495 break; 3496 case WLAN_CIPHER_SUITE_GCMP: 3497 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3498 break; 3499 case WLAN_CIPHER_SUITE_GCMP_256: 3500 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3501 break; 3502 case 0: 3503 /* open profile */ 3504 break; 3505 default: 3506 /* cipher not supported, don't send anything to iwlmei */ 3507 return; 3508 } 3509 3510 switch (mvmvif->rekey_data.akm) { 3511 case WLAN_AKM_SUITE_SAE & 0xff: 3512 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3513 break; 3514 case WLAN_AKM_SUITE_PSK & 0xff: 3515 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3516 break; 3517 case WLAN_AKM_SUITE_8021X & 0xff: 3518 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3519 break; 3520 case 0: 3521 /* open profile */ 3522 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3523 break; 3524 default: 3525 /* auth method / AKM not supported */ 3526 /* TODO: All the FT vesions of these? */ 3527 return; 3528 } 3529 3530 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3531 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3532 3533 /* TODO: add support for collocated AP data */ 3534 iwl_mei_host_associated(&conn_info, NULL); 3535 #endif 3536 } 3537 3538 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3539 struct ieee80211_vif *vif, 3540 bool force_assoc_off) 3541 { 3542 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3543 } 3544 3545 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3546 struct ieee80211_vif *vif, 3547 struct ieee80211_sta *sta, 3548 enum ieee80211_sta_state old_state, 3549 enum ieee80211_sta_state new_state) 3550 { 3551 static const struct iwl_mvm_sta_state_ops callbacks = { 3552 .add_sta = iwl_mvm_add_sta, 3553 .update_sta = iwl_mvm_update_sta, 3554 .rm_sta = iwl_mvm_rm_sta, 3555 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3556 }; 3557 3558 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3559 &callbacks); 3560 } 3561 3562 /* FIXME: temporary making two assumptions in all sta handling functions: 3563 * (1) when setting sta state, the link exists and protected 3564 * (2) if a link is valid in sta then it's valid in vif (can 3565 * use same index in the link array) 3566 */ 3567 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3568 struct ieee80211_vif *vif, 3569 struct ieee80211_sta *sta) 3570 { 3571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3572 unsigned int link_id; 3573 3574 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3575 struct ieee80211_bss_conf *conf = 3576 link_conf_dereference_check(vif, link_id); 3577 struct ieee80211_link_sta *link_sta = 3578 link_sta_dereference_check(sta, link_id); 3579 3580 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3581 continue; 3582 3583 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3584 mvmvif->link[link_id]->phy_ctxt->channel->band); 3585 } 3586 } 3587 3588 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3589 3590 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3591 struct ieee80211_vif *vif, 3592 struct ieee80211_sta *sta) 3593 { 3594 struct ieee80211_link_sta *link_sta; 3595 unsigned int link_id; 3596 3597 /* Beacon interval check - firmware will crash if the beacon 3598 * interval is less than 16. We can't avoid connecting at all, 3599 * so refuse the station state change, this will cause mac80211 3600 * to abandon attempts to connect to this AP, and eventually 3601 * wpa_s will blocklist the AP... 3602 */ 3603 3604 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3605 struct ieee80211_bss_conf *link_conf = 3606 link_conf_dereference_protected(vif, link_id); 3607 3608 if (!link_conf) 3609 continue; 3610 3611 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3612 IWL_ERR(mvm, 3613 "Beacon interval %d for AP %pM is too small\n", 3614 link_conf->beacon_int, link_sta->addr); 3615 return false; 3616 } 3617 3618 link_conf->he_support = link_sta->he_cap.has_he; 3619 } 3620 3621 return true; 3622 } 3623 3624 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3625 struct ieee80211_vif *vif, 3626 struct ieee80211_sta *sta, 3627 bool is_sta) 3628 { 3629 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3630 struct ieee80211_link_sta *link_sta; 3631 unsigned int link_id; 3632 3633 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3634 struct ieee80211_bss_conf *link_conf = 3635 link_conf_dereference_protected(vif, link_id); 3636 3637 if (!link_conf || !mvmvif->link[link_id]) 3638 continue; 3639 3640 link_conf->he_support = link_sta->he_cap.has_he; 3641 3642 if (is_sta) { 3643 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3644 if (link_sta->he_cap.has_he) 3645 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3646 link_id, 3647 link_conf); 3648 } 3649 } 3650 } 3651 3652 static int 3653 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3654 struct ieee80211_vif *vif, 3655 struct ieee80211_sta *sta, 3656 const struct iwl_mvm_sta_state_ops *callbacks) 3657 { 3658 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3659 struct ieee80211_link_sta *link_sta; 3660 unsigned int i; 3661 int ret; 3662 3663 lockdep_assert_held(&mvm->mutex); 3664 3665 if (vif->type == NL80211_IFTYPE_STATION && 3666 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3667 return -EINVAL; 3668 3669 if (sta->tdls && 3670 (vif->p2p || 3671 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3672 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3673 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3674 return -EBUSY; 3675 } 3676 3677 ret = callbacks->add_sta(mvm, vif, sta); 3678 if (sta->tdls && ret == 0) { 3679 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3680 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3681 NL80211_TDLS_SETUP); 3682 } 3683 3684 for_each_sta_active_link(vif, sta, link_sta, i) 3685 link_sta->agg.max_rc_amsdu_len = 1; 3686 3687 ieee80211_sta_recalc_aggregates(sta); 3688 3689 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3690 mvmvif->ap_sta = sta; 3691 3692 return 0; 3693 } 3694 3695 static int 3696 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3697 struct iwl_mvm *mvm, 3698 struct ieee80211_vif *vif, 3699 struct ieee80211_sta *sta, 3700 const struct iwl_mvm_sta_state_ops *callbacks) 3701 { 3702 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3703 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3704 struct ieee80211_link_sta *link_sta; 3705 unsigned int link_id; 3706 3707 lockdep_assert_held(&mvm->mutex); 3708 3709 if (vif->type == NL80211_IFTYPE_AP) { 3710 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3711 mvmvif->ap_assoc_sta_count++; 3712 callbacks->mac_ctxt_changed(mvm, vif, false); 3713 3714 /* since the below is not for MLD API, it's ok to use 3715 * the default bss_conf 3716 */ 3717 if (!mvm->mld_api_is_used && 3718 ((vif->bss_conf.he_support && 3719 !iwlwifi_mod_params.disable_11ax) || 3720 (vif->bss_conf.eht_support && 3721 !iwlwifi_mod_params.disable_11be))) 3722 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3723 } else if (vif->type == NL80211_IFTYPE_STATION) { 3724 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3725 3726 callbacks->mac_ctxt_changed(mvm, vif, false); 3727 3728 if (!mvm->mld_api_is_used) 3729 goto out; 3730 3731 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3732 struct ieee80211_bss_conf *link_conf = 3733 link_conf_dereference_protected(vif, link_id); 3734 3735 if (WARN_ON(!link_conf)) 3736 return -EINVAL; 3737 if (!mvmvif->link[link_id]) 3738 continue; 3739 3740 iwl_mvm_link_changed(mvm, vif, link_conf, 3741 LINK_CONTEXT_MODIFY_ALL & 3742 ~LINK_CONTEXT_MODIFY_ACTIVE, 3743 true); 3744 } 3745 } 3746 3747 out: 3748 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3749 3750 return callbacks->update_sta(mvm, vif, sta); 3751 } 3752 3753 static int 3754 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3755 struct ieee80211_vif *vif, 3756 struct ieee80211_sta *sta, 3757 const struct iwl_mvm_sta_state_ops *callbacks) 3758 { 3759 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3760 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3761 3762 lockdep_assert_held(&mvm->mutex); 3763 3764 /* we don't support TDLS during DCM */ 3765 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3766 iwl_mvm_teardown_tdls_peers(mvm); 3767 3768 if (sta->tdls) { 3769 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3770 NL80211_TDLS_ENABLE_LINK); 3771 } else { 3772 /* enable beacon filtering */ 3773 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3774 3775 mvmvif->authorized = 1; 3776 3777 callbacks->mac_ctxt_changed(mvm, vif, false); 3778 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3779 } 3780 3781 mvm_sta->authorized = true; 3782 3783 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3784 3785 return 0; 3786 } 3787 3788 static int 3789 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3790 struct ieee80211_vif *vif, 3791 struct ieee80211_sta *sta, 3792 const struct iwl_mvm_sta_state_ops *callbacks) 3793 { 3794 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3795 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3796 3797 lockdep_assert_held(&mvm->mutex); 3798 3799 mvmsta->authorized = false; 3800 3801 /* once we move into assoc state, need to update rate scale to 3802 * disable using wide bandwidth 3803 */ 3804 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3805 3806 if (!sta->tdls) { 3807 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3808 * yet to avoid sending high prio again for a little 3809 * time. 3810 */ 3811 mvmvif->authorized = 0; 3812 3813 /* disable beacon filtering */ 3814 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3815 } 3816 3817 return 0; 3818 } 3819 3820 /* Common part for MLD and non-MLD modes */ 3821 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3822 struct ieee80211_vif *vif, 3823 struct ieee80211_sta *sta, 3824 enum ieee80211_sta_state old_state, 3825 enum ieee80211_sta_state new_state, 3826 const struct iwl_mvm_sta_state_ops *callbacks) 3827 { 3828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3829 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3830 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3831 unsigned int link_id; 3832 int ret; 3833 3834 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3835 sta->addr, old_state, new_state); 3836 3837 /* 3838 * If we are in a STA removal flow and in DQA mode: 3839 * 3840 * This is after the sync_rcu part, so the queues have already been 3841 * flushed. No more TXs on their way in mac80211's path, and no more in 3842 * the queues. 3843 * Also, we won't be getting any new TX frames for this station. 3844 * What we might have are deferred TX frames that need to be taken care 3845 * of. 3846 * 3847 * Drop any still-queued deferred-frame before removing the STA, and 3848 * make sure the worker is no longer handling frames for this STA. 3849 */ 3850 if (old_state == IEEE80211_STA_NONE && 3851 new_state == IEEE80211_STA_NOTEXIST) { 3852 flush_work(&mvm->add_stream_wk); 3853 3854 /* 3855 * No need to make sure deferred TX indication is off since the 3856 * worker will already remove it if it was on 3857 */ 3858 3859 /* 3860 * Additionally, reset the 40 MHz capability if we disconnected 3861 * from the AP now. 3862 */ 3863 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3864 3865 /* Also free dup data just in case any assertions below fail */ 3866 kfree(mvm_sta->dup_data); 3867 } 3868 3869 mutex_lock(&mvm->mutex); 3870 3871 /* this would be a mac80211 bug ... but don't crash */ 3872 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3873 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3874 mutex_unlock(&mvm->mutex); 3875 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3876 &mvm->status) ? 0 : -EINVAL; 3877 } 3878 } 3879 3880 /* track whether or not the station is associated */ 3881 mvm_sta->sta_state = new_state; 3882 3883 if (old_state == IEEE80211_STA_NOTEXIST && 3884 new_state == IEEE80211_STA_NONE) { 3885 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3886 callbacks); 3887 if (ret < 0) 3888 goto out_unlock; 3889 } else if (old_state == IEEE80211_STA_NONE && 3890 new_state == IEEE80211_STA_AUTH) { 3891 /* 3892 * EBS may be disabled due to previous failures reported by FW. 3893 * Reset EBS status here assuming environment has been changed. 3894 */ 3895 mvm->last_ebs_successful = true; 3896 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3897 ret = 0; 3898 } else if (old_state == IEEE80211_STA_AUTH && 3899 new_state == IEEE80211_STA_ASSOC) { 3900 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3901 callbacks); 3902 } else if (old_state == IEEE80211_STA_ASSOC && 3903 new_state == IEEE80211_STA_AUTHORIZED) { 3904 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3905 callbacks); 3906 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3907 new_state == IEEE80211_STA_ASSOC) { 3908 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3909 callbacks); 3910 } else if (old_state == IEEE80211_STA_ASSOC && 3911 new_state == IEEE80211_STA_AUTH) { 3912 if (vif->type == NL80211_IFTYPE_AP) { 3913 mvmvif->ap_assoc_sta_count--; 3914 callbacks->mac_ctxt_changed(mvm, vif, false); 3915 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3916 iwl_mvm_stop_session_protection(mvm, vif); 3917 ret = 0; 3918 } else if (old_state == IEEE80211_STA_AUTH && 3919 new_state == IEEE80211_STA_NONE) { 3920 ret = 0; 3921 } else if (old_state == IEEE80211_STA_NONE && 3922 new_state == IEEE80211_STA_NOTEXIST) { 3923 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3924 iwl_mvm_stop_session_protection(mvm, vif); 3925 mvmvif->ap_sta = NULL; 3926 } 3927 ret = callbacks->rm_sta(mvm, vif, sta); 3928 if (sta->tdls) { 3929 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3930 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3931 NL80211_TDLS_DISABLE_LINK); 3932 } 3933 3934 if (unlikely(ret && 3935 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3936 &mvm->status))) 3937 ret = 0; 3938 } else { 3939 ret = -EIO; 3940 } 3941 out_unlock: 3942 mutex_unlock(&mvm->mutex); 3943 3944 if (sta->tdls && ret == 0) { 3945 if (old_state == IEEE80211_STA_NOTEXIST && 3946 new_state == IEEE80211_STA_NONE) 3947 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3948 else if (old_state == IEEE80211_STA_NONE && 3949 new_state == IEEE80211_STA_NOTEXIST) 3950 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3951 } 3952 3953 return ret; 3954 } 3955 3956 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3957 { 3958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3959 3960 mvm->rts_threshold = value; 3961 3962 return 0; 3963 } 3964 3965 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3966 struct ieee80211_sta *sta, u32 changed) 3967 { 3968 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3969 3970 if (changed & (IEEE80211_RC_BW_CHANGED | 3971 IEEE80211_RC_SUPP_RATES_CHANGED | 3972 IEEE80211_RC_NSS_CHANGED)) 3973 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3974 3975 if (vif->type == NL80211_IFTYPE_STATION && 3976 changed & IEEE80211_RC_NSS_CHANGED) 3977 iwl_mvm_sf_update(mvm, vif, false); 3978 } 3979 3980 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3981 struct ieee80211_vif *vif, 3982 unsigned int link_id, u16 ac, 3983 const struct ieee80211_tx_queue_params *params) 3984 { 3985 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3986 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3987 3988 mvmvif->deflink.queue_params[ac] = *params; 3989 3990 /* 3991 * No need to update right away, we'll get BSS_CHANGED_QOS 3992 * The exception is P2P_DEVICE interface which needs immediate update. 3993 */ 3994 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3995 int ret; 3996 3997 mutex_lock(&mvm->mutex); 3998 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3999 mutex_unlock(&mvm->mutex); 4000 return ret; 4001 } 4002 return 0; 4003 } 4004 4005 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4006 struct ieee80211_vif *vif, 4007 struct ieee80211_prep_tx_info *info) 4008 { 4009 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4010 4011 mutex_lock(&mvm->mutex); 4012 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4013 mutex_unlock(&mvm->mutex); 4014 } 4015 4016 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4017 struct ieee80211_vif *vif, 4018 struct ieee80211_prep_tx_info *info) 4019 { 4020 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4021 4022 /* for successful cases (auth/assoc), don't cancel session protection */ 4023 if (info->success) 4024 return; 4025 4026 mutex_lock(&mvm->mutex); 4027 iwl_mvm_stop_session_protection(mvm, vif); 4028 mutex_unlock(&mvm->mutex); 4029 } 4030 4031 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4032 struct ieee80211_vif *vif, 4033 struct cfg80211_sched_scan_request *req, 4034 struct ieee80211_scan_ies *ies) 4035 { 4036 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4037 4038 int ret; 4039 4040 mutex_lock(&mvm->mutex); 4041 4042 if (!vif->cfg.idle) { 4043 ret = -EBUSY; 4044 goto out; 4045 } 4046 4047 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4048 4049 out: 4050 mutex_unlock(&mvm->mutex); 4051 return ret; 4052 } 4053 4054 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4055 struct ieee80211_vif *vif) 4056 { 4057 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4058 int ret; 4059 4060 mutex_lock(&mvm->mutex); 4061 4062 /* Due to a race condition, it's possible that mac80211 asks 4063 * us to stop a sched_scan when it's already stopped. This 4064 * can happen, for instance, if we stopped the scan ourselves, 4065 * called ieee80211_sched_scan_stopped() and the userspace called 4066 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4067 * could run. To handle this, simply return if the scan is 4068 * not running. 4069 */ 4070 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4071 mutex_unlock(&mvm->mutex); 4072 return 0; 4073 } 4074 4075 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4076 mutex_unlock(&mvm->mutex); 4077 iwl_mvm_wait_for_async_handlers(mvm); 4078 4079 return ret; 4080 } 4081 4082 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4083 enum set_key_cmd cmd, 4084 struct ieee80211_vif *vif, 4085 struct ieee80211_sta *sta, 4086 struct ieee80211_key_conf *key) 4087 { 4088 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4089 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4090 struct iwl_mvm_sta *mvmsta = NULL; 4091 struct iwl_mvm_key_pn *ptk_pn = NULL; 4092 int keyidx = key->keyidx; 4093 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4094 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4095 int ret, i; 4096 u8 key_offset; 4097 4098 if (sta) 4099 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4100 4101 switch (key->cipher) { 4102 case WLAN_CIPHER_SUITE_TKIP: 4103 if (!mvm->trans->trans_cfg->gen2) { 4104 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4105 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4106 } else if (vif->type == NL80211_IFTYPE_STATION) { 4107 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4108 } else { 4109 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4110 return -EOPNOTSUPP; 4111 } 4112 break; 4113 case WLAN_CIPHER_SUITE_CCMP: 4114 case WLAN_CIPHER_SUITE_GCMP: 4115 case WLAN_CIPHER_SUITE_GCMP_256: 4116 if (!iwl_mvm_has_new_tx_api(mvm)) 4117 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4118 break; 4119 case WLAN_CIPHER_SUITE_AES_CMAC: 4120 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4121 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4122 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4123 break; 4124 case WLAN_CIPHER_SUITE_WEP40: 4125 case WLAN_CIPHER_SUITE_WEP104: 4126 if (vif->type == NL80211_IFTYPE_STATION) 4127 break; 4128 if (iwl_mvm_has_new_tx_api(mvm)) 4129 return -EOPNOTSUPP; 4130 /* support HW crypto on TX */ 4131 return 0; 4132 default: 4133 return -EOPNOTSUPP; 4134 } 4135 4136 switch (cmd) { 4137 case SET_KEY: 4138 if (vif->type == NL80211_IFTYPE_STATION && 4139 (keyidx == 6 || keyidx == 7)) 4140 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4141 key); 4142 4143 if ((vif->type == NL80211_IFTYPE_ADHOC || 4144 vif->type == NL80211_IFTYPE_AP) && !sta) { 4145 /* 4146 * GTK on AP interface is a TX-only key, return 0; 4147 * on IBSS they're per-station and because we're lazy 4148 * we don't support them for RX, so do the same. 4149 * CMAC/GMAC in AP/IBSS modes must be done in software. 4150 * 4151 * Except, of course, beacon protection - it must be 4152 * offloaded since we just set a beacon template. 4153 */ 4154 if (keyidx < 6 && 4155 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4156 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4157 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4158 ret = -EOPNOTSUPP; 4159 break; 4160 } 4161 4162 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4163 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4164 !iwl_mvm_has_new_tx_api(mvm)) { 4165 key->hw_key_idx = STA_KEY_IDX_INVALID; 4166 ret = 0; 4167 break; 4168 } 4169 4170 if (!mvmvif->ap_ibss_active) { 4171 for (i = 0; 4172 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4173 i++) { 4174 if (!mvmvif->ap_early_keys[i]) { 4175 mvmvif->ap_early_keys[i] = key; 4176 break; 4177 } 4178 } 4179 4180 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4181 ret = -ENOSPC; 4182 else 4183 ret = 0; 4184 4185 break; 4186 } 4187 } 4188 4189 /* During FW restart, in order to restore the state as it was, 4190 * don't try to reprogram keys we previously failed for. 4191 */ 4192 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4193 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4194 IWL_DEBUG_MAC80211(mvm, 4195 "skip invalid idx key programming during restart\n"); 4196 ret = 0; 4197 break; 4198 } 4199 4200 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4201 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4202 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4203 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4204 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4205 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4206 struct ieee80211_key_seq seq; 4207 int tid, q; 4208 4209 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4210 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4211 mvm->trans->num_rx_queues), 4212 GFP_KERNEL); 4213 if (!ptk_pn) { 4214 ret = -ENOMEM; 4215 break; 4216 } 4217 4218 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4219 ieee80211_get_key_rx_seq(key, tid, &seq); 4220 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4221 memcpy(ptk_pn->q[q].pn[tid], 4222 seq.ccmp.pn, 4223 IEEE80211_CCMP_PN_LEN); 4224 } 4225 4226 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4227 } 4228 4229 /* in HW restart reuse the index, otherwise request a new one */ 4230 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4231 key_offset = key->hw_key_idx; 4232 else 4233 key_offset = STA_KEY_IDX_INVALID; 4234 4235 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4236 mvmsta->pairwise_cipher = key->cipher; 4237 4238 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4239 sta ? sta->addr : NULL, key->keyidx); 4240 4241 if (sec_key_ver) 4242 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4243 else 4244 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4245 4246 if (ret) { 4247 IWL_WARN(mvm, "set key failed\n"); 4248 key->hw_key_idx = STA_KEY_IDX_INVALID; 4249 if (ptk_pn) { 4250 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4251 kfree(ptk_pn); 4252 } 4253 /* 4254 * can't add key for RX, but we don't need it 4255 * in the device for TX so still return 0, 4256 * unless we have new TX API where we cannot 4257 * put key material into the TX_CMD 4258 */ 4259 if (iwl_mvm_has_new_tx_api(mvm)) 4260 ret = -EOPNOTSUPP; 4261 else 4262 ret = 0; 4263 } 4264 4265 break; 4266 case DISABLE_KEY: 4267 if (vif->type == NL80211_IFTYPE_STATION && 4268 (keyidx == 6 || keyidx == 7)) 4269 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4270 NULL); 4271 4272 ret = -ENOENT; 4273 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4274 if (mvmvif->ap_early_keys[i] == key) { 4275 mvmvif->ap_early_keys[i] = NULL; 4276 ret = 0; 4277 } 4278 } 4279 4280 /* found in pending list - don't do anything else */ 4281 if (ret == 0) 4282 break; 4283 4284 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4285 ret = 0; 4286 break; 4287 } 4288 4289 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4290 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4291 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4292 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4293 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4294 ptk_pn = rcu_dereference_protected( 4295 mvmsta->ptk_pn[keyidx], 4296 lockdep_is_held(&mvm->mutex)); 4297 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4298 if (ptk_pn) 4299 kfree_rcu(ptk_pn, rcu_head); 4300 } 4301 4302 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4303 if (sec_key_ver) 4304 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4305 else 4306 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4307 break; 4308 default: 4309 ret = -EINVAL; 4310 } 4311 4312 return ret; 4313 } 4314 4315 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4316 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4317 struct ieee80211_key_conf *key) 4318 { 4319 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4320 int ret; 4321 4322 mutex_lock(&mvm->mutex); 4323 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4324 mutex_unlock(&mvm->mutex); 4325 4326 return ret; 4327 } 4328 4329 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4330 struct ieee80211_vif *vif, 4331 struct ieee80211_key_conf *keyconf, 4332 struct ieee80211_sta *sta, 4333 u32 iv32, u16 *phase1key) 4334 { 4335 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4336 4337 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4338 return; 4339 4340 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4341 } 4342 4343 4344 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4345 struct iwl_rx_packet *pkt, void *data) 4346 { 4347 struct iwl_mvm *mvm = 4348 container_of(notif_wait, struct iwl_mvm, notif_wait); 4349 struct iwl_hs20_roc_res *resp; 4350 int resp_len = iwl_rx_packet_payload_len(pkt); 4351 struct iwl_mvm_time_event_data *te_data = data; 4352 4353 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4354 return true; 4355 4356 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4357 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4358 return true; 4359 } 4360 4361 resp = (void *)pkt->data; 4362 4363 IWL_DEBUG_TE(mvm, 4364 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4365 resp->status, resp->event_unique_id); 4366 4367 te_data->uid = le32_to_cpu(resp->event_unique_id); 4368 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4369 te_data->uid); 4370 4371 spin_lock_bh(&mvm->time_event_lock); 4372 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4373 spin_unlock_bh(&mvm->time_event_lock); 4374 4375 return true; 4376 } 4377 4378 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4379 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4380 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4381 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4382 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4383 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4384 struct ieee80211_channel *channel, 4385 struct ieee80211_vif *vif, 4386 int duration) 4387 { 4388 int res; 4389 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4390 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4391 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4392 struct iwl_notification_wait wait_time_event; 4393 u32 dtim_interval = vif->bss_conf.dtim_period * 4394 vif->bss_conf.beacon_int; 4395 u32 req_dur, delay; 4396 struct iwl_hs20_roc_req aux_roc_req = { 4397 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4398 .id_and_color = 4399 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4400 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4401 }; 4402 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4403 &aux_roc_req.channel_info); 4404 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4405 4406 /* Set the channel info data */ 4407 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4408 iwl_mvm_phy_band_from_nl80211(channel->band), 4409 IWL_PHY_CHANNEL_MODE20, 4410 0); 4411 4412 /* Set the time and duration */ 4413 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4414 4415 delay = AUX_ROC_MIN_DELAY; 4416 req_dur = MSEC_TO_TU(duration); 4417 4418 /* 4419 * If we are associated we want the delay time to be at least one 4420 * dtim interval so that the FW can wait until after the DTIM and 4421 * then start the time event, this will potentially allow us to 4422 * remain off-channel for the max duration. 4423 * Since we want to use almost a whole dtim interval we would also 4424 * like the delay to be for 2-3 dtim intervals, in case there are 4425 * other time events with higher priority. 4426 */ 4427 if (vif->cfg.assoc) { 4428 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4429 /* We cannot remain off-channel longer than the DTIM interval */ 4430 if (dtim_interval <= req_dur) { 4431 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4432 if (req_dur <= AUX_ROC_MIN_DURATION) 4433 req_dur = dtim_interval - 4434 AUX_ROC_MIN_SAFETY_BUFFER; 4435 } 4436 } 4437 4438 tail->duration = cpu_to_le32(req_dur); 4439 tail->apply_time_max_delay = cpu_to_le32(delay); 4440 4441 IWL_DEBUG_TE(mvm, 4442 "ROC: Requesting to remain on channel %u for %ums\n", 4443 channel->hw_value, req_dur); 4444 IWL_DEBUG_TE(mvm, 4445 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4446 duration, delay, dtim_interval); 4447 4448 /* Set the node address */ 4449 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4450 4451 lockdep_assert_held(&mvm->mutex); 4452 4453 spin_lock_bh(&mvm->time_event_lock); 4454 4455 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4456 spin_unlock_bh(&mvm->time_event_lock); 4457 return -EIO; 4458 } 4459 4460 te_data->vif = vif; 4461 te_data->duration = duration; 4462 te_data->id = HOT_SPOT_CMD; 4463 4464 spin_unlock_bh(&mvm->time_event_lock); 4465 4466 /* 4467 * Use a notification wait, which really just processes the 4468 * command response and doesn't wait for anything, in order 4469 * to be able to process the response and get the UID inside 4470 * the RX path. Using CMD_WANT_SKB doesn't work because it 4471 * stores the buffer and then wakes up this thread, by which 4472 * time another notification (that the time event started) 4473 * might already be processed unsuccessfully. 4474 */ 4475 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4476 time_event_response, 4477 ARRAY_SIZE(time_event_response), 4478 iwl_mvm_rx_aux_roc, te_data); 4479 4480 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4481 &aux_roc_req); 4482 4483 if (res) { 4484 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4485 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4486 goto out_clear_te; 4487 } 4488 4489 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4490 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4491 /* should never fail */ 4492 WARN_ON_ONCE(res); 4493 4494 if (res) { 4495 out_clear_te: 4496 spin_lock_bh(&mvm->time_event_lock); 4497 iwl_mvm_te_clear_data(mvm, te_data); 4498 spin_unlock_bh(&mvm->time_event_lock); 4499 } 4500 4501 return res; 4502 } 4503 4504 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4505 { 4506 int ret = 0; 4507 4508 lockdep_assert_held(&mvm->mutex); 4509 4510 if (!fw_has_capa(&mvm->fw->ucode_capa, 4511 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4512 IWL_ERR(mvm, "hotspot not supported\n"); 4513 return -EINVAL; 4514 } 4515 4516 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) { 4517 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4518 WARN(ret, "Failed to allocate aux station"); 4519 } 4520 4521 return ret; 4522 } 4523 4524 static int iwl_mvm_roc_switch_binding(struct iwl_mvm *mvm, 4525 struct ieee80211_vif *vif, 4526 struct iwl_mvm_phy_ctxt *new_phy_ctxt) 4527 { 4528 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4529 int ret = 0; 4530 4531 lockdep_assert_held(&mvm->mutex); 4532 4533 /* Unbind the P2P_DEVICE from the current PHY context, 4534 * and if the PHY context is not used remove it. 4535 */ 4536 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4537 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4538 return ret; 4539 4540 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4541 4542 /* Bind the P2P_DEVICE to the current PHY Context */ 4543 mvmvif->deflink.phy_ctxt = new_phy_ctxt; 4544 4545 ret = iwl_mvm_binding_add_vif(mvm, vif); 4546 WARN(ret, "Failed binding P2P_DEVICE\n"); 4547 return ret; 4548 } 4549 4550 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4551 struct ieee80211_vif *vif, 4552 struct ieee80211_channel *channel, 4553 int duration, 4554 enum ieee80211_roc_type type) 4555 { 4556 static const struct iwl_mvm_roc_ops ops = { 4557 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4558 .switch_phy_ctxt = iwl_mvm_roc_switch_binding, 4559 }; 4560 4561 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4562 } 4563 4564 /* Execute the common part for MLD and non-MLD modes */ 4565 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4566 struct ieee80211_channel *channel, int duration, 4567 enum ieee80211_roc_type type, 4568 const struct iwl_mvm_roc_ops *ops) 4569 { 4570 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4572 struct cfg80211_chan_def chandef; 4573 struct iwl_mvm_phy_ctxt *phy_ctxt; 4574 bool band_change_removal; 4575 int ret, i; 4576 u32 lmac_id; 4577 4578 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4579 duration, type); 4580 4581 /* 4582 * Flush the done work, just in case it's still pending, so that 4583 * the work it does can complete and we can accept new frames. 4584 */ 4585 flush_work(&mvm->roc_done_wk); 4586 4587 mutex_lock(&mvm->mutex); 4588 4589 switch (vif->type) { 4590 case NL80211_IFTYPE_STATION: 4591 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, channel->band); 4592 4593 /* Use aux roc framework (HS20) */ 4594 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4595 if (!ret) 4596 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4597 vif, duration); 4598 goto out_unlock; 4599 case NL80211_IFTYPE_P2P_DEVICE: 4600 /* handle below */ 4601 break; 4602 default: 4603 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4604 ret = -EINVAL; 4605 goto out_unlock; 4606 } 4607 4608 for (i = 0; i < NUM_PHY_CTX; i++) { 4609 phy_ctxt = &mvm->phy_ctxts[i]; 4610 if (phy_ctxt->ref == 0 || mvmvif->deflink.phy_ctxt == phy_ctxt) 4611 continue; 4612 4613 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4614 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4615 if (ret) 4616 goto out_unlock; 4617 4618 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4619 goto schedule_time_event; 4620 } 4621 } 4622 4623 /* Need to update the PHY context only if the ROC channel changed */ 4624 if (channel == mvmvif->deflink.phy_ctxt->channel) 4625 goto schedule_time_event; 4626 4627 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4628 4629 /* 4630 * Check if the remain-on-channel is on a different band and that 4631 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4632 * so, we'll need to release and then re-configure here, since we 4633 * must not remove a PHY context that's part of a binding. 4634 */ 4635 band_change_removal = 4636 fw_has_capa(&mvm->fw->ucode_capa, 4637 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4638 mvmvif->deflink.phy_ctxt->channel->band != chandef.chan->band; 4639 4640 if (mvmvif->deflink.phy_ctxt->ref == 1 && !band_change_removal) { 4641 /* 4642 * Change the PHY context configuration as it is currently 4643 * referenced only by the P2P Device MAC (and we can modify it) 4644 */ 4645 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->deflink.phy_ctxt, 4646 &chandef, 1, 1); 4647 if (ret) 4648 goto out_unlock; 4649 } else { 4650 /* 4651 * The PHY context is shared with other MACs (or we're trying to 4652 * switch bands), so remove the P2P Device from the binding, 4653 * allocate an new PHY context and create a new binding. 4654 */ 4655 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4656 if (!phy_ctxt) { 4657 ret = -ENOSPC; 4658 goto out_unlock; 4659 } 4660 4661 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4662 1, 1); 4663 if (ret) { 4664 IWL_ERR(mvm, "Failed to change PHY context\n"); 4665 goto out_unlock; 4666 } 4667 4668 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4669 if (ret) 4670 goto out_unlock; 4671 4672 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4673 } 4674 4675 schedule_time_event: 4676 /* Schedule the time events */ 4677 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4678 4679 out_unlock: 4680 mutex_unlock(&mvm->mutex); 4681 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4682 return ret; 4683 } 4684 4685 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4686 struct ieee80211_vif *vif) 4687 { 4688 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4689 4690 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4691 4692 mutex_lock(&mvm->mutex); 4693 iwl_mvm_stop_roc(mvm, vif); 4694 mutex_unlock(&mvm->mutex); 4695 4696 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4697 return 0; 4698 } 4699 4700 struct iwl_mvm_ftm_responder_iter_data { 4701 bool responder; 4702 struct ieee80211_chanctx_conf *ctx; 4703 }; 4704 4705 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4706 struct ieee80211_vif *vif) 4707 { 4708 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4709 4710 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4711 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4712 data->responder = true; 4713 } 4714 4715 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4716 struct ieee80211_chanctx_conf *ctx) 4717 { 4718 struct iwl_mvm_ftm_responder_iter_data data = { 4719 .responder = false, 4720 .ctx = ctx, 4721 }; 4722 4723 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4724 IEEE80211_IFACE_ITER_NORMAL, 4725 iwl_mvm_ftm_responder_chanctx_iter, 4726 &data); 4727 return data.responder; 4728 } 4729 4730 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4731 struct ieee80211_chanctx_conf *ctx) 4732 { 4733 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4734 struct iwl_mvm_phy_ctxt *phy_ctxt; 4735 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4736 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4737 int ret; 4738 4739 lockdep_assert_held(&mvm->mutex); 4740 4741 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4742 4743 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4744 if (!phy_ctxt) { 4745 ret = -ENOSPC; 4746 goto out; 4747 } 4748 4749 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4750 ctx->rx_chains_static, 4751 ctx->rx_chains_dynamic); 4752 if (ret) { 4753 IWL_ERR(mvm, "Failed to add PHY context\n"); 4754 goto out; 4755 } 4756 4757 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4758 *phy_ctxt_id = phy_ctxt->id; 4759 out: 4760 return ret; 4761 } 4762 4763 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4764 struct ieee80211_chanctx_conf *ctx) 4765 { 4766 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4767 int ret; 4768 4769 mutex_lock(&mvm->mutex); 4770 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4771 mutex_unlock(&mvm->mutex); 4772 4773 return ret; 4774 } 4775 4776 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4777 struct ieee80211_chanctx_conf *ctx) 4778 { 4779 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4780 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4781 4782 lockdep_assert_held(&mvm->mutex); 4783 4784 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4785 } 4786 4787 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4788 struct ieee80211_chanctx_conf *ctx) 4789 { 4790 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4791 4792 mutex_lock(&mvm->mutex); 4793 __iwl_mvm_remove_chanctx(mvm, ctx); 4794 mutex_unlock(&mvm->mutex); 4795 } 4796 4797 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4798 struct ieee80211_chanctx_conf *ctx, u32 changed) 4799 { 4800 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4801 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4802 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4803 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4804 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4805 4806 if (WARN_ONCE((phy_ctxt->ref > 1) && 4807 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4808 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4809 IEEE80211_CHANCTX_CHANGE_RADAR | 4810 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4811 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4812 phy_ctxt->ref, changed)) 4813 return; 4814 4815 mutex_lock(&mvm->mutex); 4816 4817 /* we are only changing the min_width, may be a noop */ 4818 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4819 if (phy_ctxt->width == def->width) 4820 goto out_unlock; 4821 4822 /* we are just toggling between 20_NOHT and 20 */ 4823 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4824 def->width <= NL80211_CHAN_WIDTH_20) 4825 goto out_unlock; 4826 } 4827 4828 iwl_mvm_bt_coex_vif_change(mvm); 4829 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4830 ctx->rx_chains_static, 4831 ctx->rx_chains_dynamic); 4832 4833 out_unlock: 4834 mutex_unlock(&mvm->mutex); 4835 } 4836 4837 /* 4838 * This function executes the common part for MLD and non-MLD modes. 4839 * 4840 * Returns true if we're done assigning the chanctx 4841 * (either on failure or success) 4842 */ 4843 static bool 4844 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4845 struct ieee80211_vif *vif, 4846 struct ieee80211_chanctx_conf *ctx, 4847 bool switching_chanctx, int *ret) 4848 { 4849 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4850 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4851 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4852 4853 lockdep_assert_held(&mvm->mutex); 4854 4855 mvmvif->deflink.phy_ctxt = phy_ctxt; 4856 4857 switch (vif->type) { 4858 case NL80211_IFTYPE_AP: 4859 /* only needed if we're switching chanctx (i.e. during CSA) */ 4860 if (switching_chanctx) { 4861 mvmvif->ap_ibss_active = true; 4862 break; 4863 } 4864 fallthrough; 4865 case NL80211_IFTYPE_ADHOC: 4866 /* 4867 * The AP binding flow is handled as part of the start_ap flow 4868 * (in bss_info_changed), similarly for IBSS. 4869 */ 4870 *ret = 0; 4871 return true; 4872 case NL80211_IFTYPE_STATION: 4873 break; 4874 case NL80211_IFTYPE_MONITOR: 4875 /* always disable PS when a monitor interface is active */ 4876 mvmvif->ps_disabled = true; 4877 break; 4878 default: 4879 *ret = -EINVAL; 4880 return true; 4881 } 4882 return false; 4883 } 4884 4885 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4886 struct ieee80211_vif *vif, 4887 struct ieee80211_bss_conf *link_conf, 4888 struct ieee80211_chanctx_conf *ctx, 4889 bool switching_chanctx) 4890 { 4891 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4892 int ret; 4893 4894 if (WARN_ON(!link_conf)) 4895 return -EINVAL; 4896 4897 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4898 switching_chanctx, &ret)) 4899 goto out; 4900 4901 ret = iwl_mvm_binding_add_vif(mvm, vif); 4902 if (ret) 4903 goto out; 4904 4905 /* 4906 * Power state must be updated before quotas, 4907 * otherwise fw will complain. 4908 */ 4909 iwl_mvm_power_update_mac(mvm); 4910 4911 /* Setting the quota at this stage is only required for monitor 4912 * interfaces. For the other types, the bss_info changed flow 4913 * will handle quota settings. 4914 */ 4915 if (vif->type == NL80211_IFTYPE_MONITOR) { 4916 mvmvif->monitor_active = true; 4917 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4918 if (ret) 4919 goto out_remove_binding; 4920 4921 ret = iwl_mvm_add_snif_sta(mvm, vif); 4922 if (ret) 4923 goto out_remove_binding; 4924 4925 } 4926 4927 /* Handle binding during CSA */ 4928 if (vif->type == NL80211_IFTYPE_AP) { 4929 iwl_mvm_update_quotas(mvm, false, NULL); 4930 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4931 } 4932 4933 if (vif->type == NL80211_IFTYPE_STATION) { 4934 if (!switching_chanctx) { 4935 mvmvif->csa_bcn_pending = false; 4936 goto out; 4937 } 4938 4939 mvmvif->csa_bcn_pending = true; 4940 4941 if (!fw_has_capa(&mvm->fw->ucode_capa, 4942 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4943 u32 duration = 3 * vif->bss_conf.beacon_int; 4944 4945 /* Protect the session to make sure we hear the first 4946 * beacon on the new channel. 4947 */ 4948 iwl_mvm_protect_session(mvm, vif, duration, duration, 4949 vif->bss_conf.beacon_int / 2, 4950 true); 4951 } 4952 4953 iwl_mvm_update_quotas(mvm, false, NULL); 4954 } 4955 4956 goto out; 4957 4958 out_remove_binding: 4959 iwl_mvm_binding_remove_vif(mvm, vif); 4960 iwl_mvm_power_update_mac(mvm); 4961 out: 4962 if (ret) 4963 mvmvif->deflink.phy_ctxt = NULL; 4964 return ret; 4965 } 4966 4967 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4968 struct ieee80211_vif *vif, 4969 struct ieee80211_bss_conf *link_conf, 4970 struct ieee80211_chanctx_conf *ctx) 4971 { 4972 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4973 int ret; 4974 4975 mutex_lock(&mvm->mutex); 4976 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 4977 mutex_unlock(&mvm->mutex); 4978 4979 return ret; 4980 } 4981 4982 /* 4983 * This function executes the common part for MLD and non-MLD modes. 4984 * 4985 * Returns if chanctx unassign chanctx is done 4986 * (either on failure or success) 4987 */ 4988 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 4989 struct ieee80211_vif *vif, 4990 bool switching_chanctx) 4991 { 4992 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4993 4994 lockdep_assert_held(&mvm->mutex); 4995 iwl_mvm_remove_time_event(mvm, mvmvif, 4996 &mvmvif->time_event_data); 4997 4998 switch (vif->type) { 4999 case NL80211_IFTYPE_ADHOC: 5000 return true; 5001 case NL80211_IFTYPE_MONITOR: 5002 mvmvif->monitor_active = false; 5003 mvmvif->ps_disabled = false; 5004 break; 5005 case NL80211_IFTYPE_AP: 5006 /* This part is triggered only during CSA */ 5007 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5008 return true; 5009 5010 mvmvif->csa_countdown = false; 5011 5012 /* Set CS bit on all the stations */ 5013 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5014 5015 /* Save blocked iface, the timeout is set on the next beacon */ 5016 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5017 5018 mvmvif->ap_ibss_active = false; 5019 break; 5020 default: 5021 break; 5022 } 5023 return false; 5024 } 5025 5026 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5027 struct ieee80211_vif *vif, 5028 struct ieee80211_bss_conf *link_conf, 5029 struct ieee80211_chanctx_conf *ctx, 5030 bool switching_chanctx) 5031 { 5032 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5033 struct ieee80211_vif *disabled_vif = NULL; 5034 5035 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5036 goto out; 5037 5038 if (vif->type == NL80211_IFTYPE_MONITOR) 5039 iwl_mvm_rm_snif_sta(mvm, vif); 5040 5041 5042 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5043 disabled_vif = vif; 5044 if (!fw_has_capa(&mvm->fw->ucode_capa, 5045 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5046 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5047 } 5048 5049 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5050 iwl_mvm_binding_remove_vif(mvm, vif); 5051 5052 out: 5053 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5054 switching_chanctx) 5055 return; 5056 mvmvif->deflink.phy_ctxt = NULL; 5057 iwl_mvm_power_update_mac(mvm); 5058 } 5059 5060 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5061 struct ieee80211_vif *vif, 5062 struct ieee80211_bss_conf *link_conf, 5063 struct ieee80211_chanctx_conf *ctx) 5064 { 5065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5066 5067 mutex_lock(&mvm->mutex); 5068 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5069 mutex_unlock(&mvm->mutex); 5070 } 5071 5072 static int 5073 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5074 struct ieee80211_vif_chanctx_switch *vifs, 5075 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5076 { 5077 int ret; 5078 5079 mutex_lock(&mvm->mutex); 5080 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5081 vifs[0].old_ctx, true); 5082 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5083 5084 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5085 if (ret) { 5086 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5087 goto out_reassign; 5088 } 5089 5090 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5091 vifs[0].new_ctx, true); 5092 if (ret) { 5093 IWL_ERR(mvm, 5094 "failed to assign new_ctx during channel switch\n"); 5095 goto out_remove; 5096 } 5097 5098 /* we don't support TDLS during DCM - can be caused by channel switch */ 5099 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5100 iwl_mvm_teardown_tdls_peers(mvm); 5101 5102 goto out; 5103 5104 out_remove: 5105 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5106 5107 out_reassign: 5108 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5109 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5110 goto out_restart; 5111 } 5112 5113 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5114 vifs[0].old_ctx, true)) { 5115 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5116 goto out_restart; 5117 } 5118 5119 goto out; 5120 5121 out_restart: 5122 /* things keep failing, better restart the hw */ 5123 iwl_mvm_nic_restart(mvm, false); 5124 5125 out: 5126 mutex_unlock(&mvm->mutex); 5127 5128 return ret; 5129 } 5130 5131 static int 5132 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5133 struct ieee80211_vif_chanctx_switch *vifs, 5134 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5135 { 5136 int ret; 5137 5138 mutex_lock(&mvm->mutex); 5139 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5140 vifs[0].old_ctx, true); 5141 5142 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5143 vifs[0].new_ctx, true); 5144 if (ret) { 5145 IWL_ERR(mvm, 5146 "failed to assign new_ctx during channel switch\n"); 5147 goto out_reassign; 5148 } 5149 5150 goto out; 5151 5152 out_reassign: 5153 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5154 vifs[0].old_ctx, true)) { 5155 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5156 goto out_restart; 5157 } 5158 5159 goto out; 5160 5161 out_restart: 5162 /* things keep failing, better restart the hw */ 5163 iwl_mvm_nic_restart(mvm, false); 5164 5165 out: 5166 mutex_unlock(&mvm->mutex); 5167 5168 return ret; 5169 } 5170 5171 /* Execute the common part for both MLD and non-MLD modes */ 5172 int 5173 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5174 struct ieee80211_vif_chanctx_switch *vifs, 5175 int n_vifs, 5176 enum ieee80211_chanctx_switch_mode mode, 5177 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5178 { 5179 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5180 int ret; 5181 5182 /* we only support a single-vif right now */ 5183 if (n_vifs > 1) 5184 return -EOPNOTSUPP; 5185 5186 switch (mode) { 5187 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5188 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5189 break; 5190 case CHANCTX_SWMODE_REASSIGN_VIF: 5191 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5192 break; 5193 default: 5194 ret = -EOPNOTSUPP; 5195 break; 5196 } 5197 5198 return ret; 5199 } 5200 5201 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5202 struct ieee80211_vif_chanctx_switch *vifs, 5203 int n_vifs, 5204 enum ieee80211_chanctx_switch_mode mode) 5205 { 5206 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5207 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5208 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5209 }; 5210 5211 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5212 } 5213 5214 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5215 { 5216 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5217 5218 return mvm->ibss_manager; 5219 } 5220 5221 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5222 bool set) 5223 { 5224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5225 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5226 5227 if (!mvm_sta || !mvm_sta->vif) { 5228 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5229 return -EINVAL; 5230 } 5231 5232 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5233 &mvm_sta->vif->bss_conf); 5234 } 5235 5236 #ifdef CONFIG_NL80211_TESTMODE 5237 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5238 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5239 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5240 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5241 }; 5242 5243 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5244 struct ieee80211_vif *vif, 5245 void *data, int len) 5246 { 5247 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5248 int err; 5249 u32 noa_duration; 5250 5251 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5252 iwl_mvm_tm_policy, NULL); 5253 if (err) 5254 return err; 5255 5256 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5257 return -EINVAL; 5258 5259 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5260 case IWL_MVM_TM_CMD_SET_NOA: 5261 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5262 !vif->bss_conf.enable_beacon || 5263 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5264 return -EINVAL; 5265 5266 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5267 if (noa_duration >= vif->bss_conf.beacon_int) 5268 return -EINVAL; 5269 5270 mvm->noa_duration = noa_duration; 5271 mvm->noa_vif = vif; 5272 5273 return iwl_mvm_update_quotas(mvm, true, NULL); 5274 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5275 /* must be associated client vif - ignore authorized */ 5276 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5277 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5278 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5279 return -EINVAL; 5280 5281 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5282 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5283 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5284 } 5285 5286 return -EOPNOTSUPP; 5287 } 5288 5289 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5290 struct ieee80211_vif *vif, 5291 void *data, int len) 5292 { 5293 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5294 int err; 5295 5296 mutex_lock(&mvm->mutex); 5297 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5298 mutex_unlock(&mvm->mutex); 5299 5300 return err; 5301 } 5302 #endif 5303 5304 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5305 struct ieee80211_channel_switch *chsw) 5306 { 5307 /* By implementing this operation, we prevent mac80211 from 5308 * starting its own channel switch timer, so that we can call 5309 * ieee80211_chswitch_done() ourselves at the right time 5310 * (which is when the absence time event starts). 5311 */ 5312 5313 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5314 "dummy channel switch op\n"); 5315 } 5316 5317 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5318 struct ieee80211_vif *vif, 5319 struct ieee80211_channel_switch *chsw) 5320 { 5321 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5322 struct iwl_chan_switch_te_cmd cmd = { 5323 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5324 mvmvif->color)), 5325 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5326 .tsf = cpu_to_le32(chsw->timestamp), 5327 .cs_count = chsw->count, 5328 .cs_mode = chsw->block_tx, 5329 }; 5330 5331 lockdep_assert_held(&mvm->mutex); 5332 5333 if (chsw->delay) 5334 cmd.cs_delayed_bcn_count = 5335 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5336 5337 return iwl_mvm_send_cmd_pdu(mvm, 5338 WIDE_ID(MAC_CONF_GROUP, 5339 CHANNEL_SWITCH_TIME_EVENT_CMD), 5340 0, sizeof(cmd), &cmd); 5341 } 5342 5343 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5344 struct ieee80211_vif *vif, 5345 struct ieee80211_channel_switch *chsw) 5346 { 5347 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5348 u32 apply_time; 5349 5350 /* Schedule the time event to a bit before beacon 1, 5351 * to make sure we're in the new channel when the 5352 * GO/AP arrives. In case count <= 1 immediately schedule the 5353 * TE (this might result with some packet loss or connection 5354 * loss). 5355 */ 5356 if (chsw->count <= 1) 5357 apply_time = 0; 5358 else 5359 apply_time = chsw->device_timestamp + 5360 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5361 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5362 5363 if (chsw->block_tx) 5364 iwl_mvm_csa_client_absent(mvm, vif); 5365 5366 if (mvmvif->bf_data.bf_enabled) { 5367 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5368 5369 if (ret) 5370 return ret; 5371 } 5372 5373 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5374 apply_time); 5375 5376 return 0; 5377 } 5378 5379 #define IWL_MAX_CSA_BLOCK_TX 1500 5380 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5381 struct ieee80211_vif *vif, 5382 struct ieee80211_channel_switch *chsw) 5383 { 5384 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5385 struct ieee80211_vif *csa_vif; 5386 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5387 int ret; 5388 5389 mutex_lock(&mvm->mutex); 5390 5391 mvmvif->csa_failed = false; 5392 5393 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5394 chsw->chandef.center_freq1); 5395 5396 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5397 ieee80211_vif_to_wdev(vif), 5398 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5399 5400 switch (vif->type) { 5401 case NL80211_IFTYPE_AP: 5402 csa_vif = 5403 rcu_dereference_protected(mvm->csa_vif, 5404 lockdep_is_held(&mvm->mutex)); 5405 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5406 "Another CSA is already in progress")) { 5407 ret = -EBUSY; 5408 goto out_unlock; 5409 } 5410 5411 /* we still didn't unblock tx. prevent new CS meanwhile */ 5412 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5413 lockdep_is_held(&mvm->mutex))) { 5414 ret = -EBUSY; 5415 goto out_unlock; 5416 } 5417 5418 rcu_assign_pointer(mvm->csa_vif, vif); 5419 5420 if (WARN_ONCE(mvmvif->csa_countdown, 5421 "Previous CSA countdown didn't complete")) { 5422 ret = -EBUSY; 5423 goto out_unlock; 5424 } 5425 5426 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5427 5428 break; 5429 case NL80211_IFTYPE_STATION: 5430 /* 5431 * In the new flow FW is in charge of timing the switch so there 5432 * is no need for all of this 5433 */ 5434 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5435 CHANNEL_SWITCH_ERROR_NOTIF, 5436 0)) 5437 break; 5438 5439 /* 5440 * We haven't configured the firmware to be associated yet since 5441 * we don't know the dtim period. In this case, the firmware can't 5442 * track the beacons. 5443 */ 5444 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5445 ret = -EBUSY; 5446 goto out_unlock; 5447 } 5448 5449 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5450 schedule_delayed_work(&mvmvif->csa_work, 0); 5451 5452 if (chsw->block_tx) { 5453 /* 5454 * In case of undetermined / long time with immediate 5455 * quiet monitor status to gracefully disconnect 5456 */ 5457 if (!chsw->count || 5458 chsw->count * vif->bss_conf.beacon_int > 5459 IWL_MAX_CSA_BLOCK_TX) 5460 schedule_delayed_work(&mvmvif->csa_work, 5461 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5462 } 5463 5464 if (!fw_has_capa(&mvm->fw->ucode_capa, 5465 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5466 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5467 if (ret) 5468 goto out_unlock; 5469 } else { 5470 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5471 } 5472 5473 mvmvif->csa_count = chsw->count; 5474 mvmvif->csa_misbehave = false; 5475 break; 5476 default: 5477 break; 5478 } 5479 5480 mvmvif->ps_disabled = true; 5481 5482 ret = iwl_mvm_power_update_ps(mvm); 5483 if (ret) 5484 goto out_unlock; 5485 5486 /* we won't be on this channel any longer */ 5487 iwl_mvm_teardown_tdls_peers(mvm); 5488 5489 out_unlock: 5490 mutex_unlock(&mvm->mutex); 5491 5492 return ret; 5493 } 5494 5495 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5496 struct ieee80211_vif *vif, 5497 struct ieee80211_channel_switch *chsw) 5498 { 5499 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5500 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5501 struct iwl_chan_switch_te_cmd cmd = { 5502 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5503 mvmvif->color)), 5504 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5505 .tsf = cpu_to_le32(chsw->timestamp), 5506 .cs_count = chsw->count, 5507 .cs_mode = chsw->block_tx, 5508 }; 5509 5510 /* 5511 * In the new flow FW is in charge of timing the switch so there is no 5512 * need for all of this 5513 */ 5514 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5515 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5516 return; 5517 5518 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5519 return; 5520 5521 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5522 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5523 5524 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5525 if (mvmvif->csa_misbehave) { 5526 /* Second time, give up on this AP*/ 5527 iwl_mvm_abort_channel_switch(hw, vif); 5528 ieee80211_chswitch_done(vif, false); 5529 mvmvif->csa_misbehave = false; 5530 return; 5531 } 5532 mvmvif->csa_misbehave = true; 5533 } 5534 mvmvif->csa_count = chsw->count; 5535 5536 mutex_lock(&mvm->mutex); 5537 if (mvmvif->csa_failed) 5538 goto out_unlock; 5539 5540 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5541 WIDE_ID(MAC_CONF_GROUP, 5542 CHANNEL_SWITCH_TIME_EVENT_CMD), 5543 0, sizeof(cmd), &cmd)); 5544 out_unlock: 5545 mutex_unlock(&mvm->mutex); 5546 } 5547 5548 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5549 { 5550 int i; 5551 5552 if (!iwl_mvm_has_new_tx_api(mvm)) { 5553 if (drop) { 5554 mutex_lock(&mvm->mutex); 5555 iwl_mvm_flush_tx_path(mvm, 5556 iwl_mvm_flushable_queues(mvm) & queues); 5557 mutex_unlock(&mvm->mutex); 5558 } else { 5559 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5560 } 5561 return; 5562 } 5563 5564 mutex_lock(&mvm->mutex); 5565 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5566 struct ieee80211_sta *sta; 5567 5568 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5569 lockdep_is_held(&mvm->mutex)); 5570 if (IS_ERR_OR_NULL(sta)) 5571 continue; 5572 5573 if (drop) 5574 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5575 else 5576 iwl_mvm_wait_sta_queues_empty(mvm, 5577 iwl_mvm_sta_from_mac80211(sta)); 5578 } 5579 mutex_unlock(&mvm->mutex); 5580 } 5581 5582 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5583 u32 queues, bool drop) 5584 { 5585 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5586 struct iwl_mvm_vif *mvmvif; 5587 struct iwl_mvm_sta *mvmsta; 5588 struct ieee80211_sta *sta; 5589 bool ap_sta_done = false; 5590 int i; 5591 u32 msk = 0; 5592 5593 if (!vif) { 5594 iwl_mvm_flush_no_vif(mvm, queues, drop); 5595 return; 5596 } 5597 5598 if (vif->type != NL80211_IFTYPE_STATION) 5599 return; 5600 5601 /* Make sure we're done with the deferred traffic before flushing */ 5602 flush_work(&mvm->add_stream_wk); 5603 5604 mutex_lock(&mvm->mutex); 5605 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5606 5607 /* flush the AP-station and all TDLS peers */ 5608 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5609 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5610 lockdep_is_held(&mvm->mutex)); 5611 if (IS_ERR_OR_NULL(sta)) 5612 continue; 5613 5614 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5615 if (mvmsta->vif != vif) 5616 continue; 5617 5618 if (sta == mvmvif->ap_sta) { 5619 if (ap_sta_done) 5620 continue; 5621 ap_sta_done = true; 5622 } 5623 5624 /* make sure only TDLS peers or the AP are flushed */ 5625 WARN_ON_ONCE(sta != mvmvif->ap_sta && !sta->tdls); 5626 5627 if (drop) { 5628 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5629 IWL_ERR(mvm, "flush request fail\n"); 5630 } else { 5631 if (iwl_mvm_has_new_tx_api(mvm)) 5632 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5633 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5634 msk |= mvmsta->tfd_queue_msk; 5635 } 5636 } 5637 5638 mutex_unlock(&mvm->mutex); 5639 5640 /* this can take a while, and we may need/want other operations 5641 * to succeed while doing this, so do it without the mutex held 5642 */ 5643 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5644 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5645 } 5646 5647 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5648 struct survey_info *survey) 5649 { 5650 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5651 int ret; 5652 5653 memset(survey, 0, sizeof(*survey)); 5654 5655 /* only support global statistics right now */ 5656 if (idx != 0) 5657 return -ENOENT; 5658 5659 if (!fw_has_capa(&mvm->fw->ucode_capa, 5660 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5661 return -ENOENT; 5662 5663 mutex_lock(&mvm->mutex); 5664 5665 if (iwl_mvm_firmware_running(mvm)) { 5666 ret = iwl_mvm_request_statistics(mvm, false); 5667 if (ret) 5668 goto out; 5669 } 5670 5671 survey->filled = SURVEY_INFO_TIME | 5672 SURVEY_INFO_TIME_RX | 5673 SURVEY_INFO_TIME_TX | 5674 SURVEY_INFO_TIME_SCAN; 5675 survey->time = mvm->accu_radio_stats.on_time_rf + 5676 mvm->radio_stats.on_time_rf; 5677 do_div(survey->time, USEC_PER_MSEC); 5678 5679 survey->time_rx = mvm->accu_radio_stats.rx_time + 5680 mvm->radio_stats.rx_time; 5681 do_div(survey->time_rx, USEC_PER_MSEC); 5682 5683 survey->time_tx = mvm->accu_radio_stats.tx_time + 5684 mvm->radio_stats.tx_time; 5685 do_div(survey->time_tx, USEC_PER_MSEC); 5686 5687 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5688 mvm->radio_stats.on_time_scan; 5689 do_div(survey->time_scan, USEC_PER_MSEC); 5690 5691 ret = 0; 5692 out: 5693 mutex_unlock(&mvm->mutex); 5694 return ret; 5695 } 5696 5697 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5698 { 5699 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5700 u32 gi_ltf; 5701 5702 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5703 case RATE_MCS_CHAN_WIDTH_20: 5704 rinfo->bw = RATE_INFO_BW_20; 5705 break; 5706 case RATE_MCS_CHAN_WIDTH_40: 5707 rinfo->bw = RATE_INFO_BW_40; 5708 break; 5709 case RATE_MCS_CHAN_WIDTH_80: 5710 rinfo->bw = RATE_INFO_BW_80; 5711 break; 5712 case RATE_MCS_CHAN_WIDTH_160: 5713 rinfo->bw = RATE_INFO_BW_160; 5714 break; 5715 case RATE_MCS_CHAN_WIDTH_320: 5716 rinfo->bw = RATE_INFO_BW_320; 5717 break; 5718 } 5719 5720 if (format == RATE_MCS_CCK_MSK || 5721 format == RATE_MCS_LEGACY_OFDM_MSK) { 5722 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5723 5724 /* add the offset needed to get to the legacy ofdm indices */ 5725 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5726 rate += IWL_FIRST_OFDM_RATE; 5727 5728 switch (rate) { 5729 case IWL_RATE_1M_INDEX: 5730 rinfo->legacy = 10; 5731 break; 5732 case IWL_RATE_2M_INDEX: 5733 rinfo->legacy = 20; 5734 break; 5735 case IWL_RATE_5M_INDEX: 5736 rinfo->legacy = 55; 5737 break; 5738 case IWL_RATE_11M_INDEX: 5739 rinfo->legacy = 110; 5740 break; 5741 case IWL_RATE_6M_INDEX: 5742 rinfo->legacy = 60; 5743 break; 5744 case IWL_RATE_9M_INDEX: 5745 rinfo->legacy = 90; 5746 break; 5747 case IWL_RATE_12M_INDEX: 5748 rinfo->legacy = 120; 5749 break; 5750 case IWL_RATE_18M_INDEX: 5751 rinfo->legacy = 180; 5752 break; 5753 case IWL_RATE_24M_INDEX: 5754 rinfo->legacy = 240; 5755 break; 5756 case IWL_RATE_36M_INDEX: 5757 rinfo->legacy = 360; 5758 break; 5759 case IWL_RATE_48M_INDEX: 5760 rinfo->legacy = 480; 5761 break; 5762 case IWL_RATE_54M_INDEX: 5763 rinfo->legacy = 540; 5764 } 5765 return; 5766 } 5767 5768 rinfo->nss = u32_get_bits(rate_n_flags, 5769 RATE_MCS_NSS_MSK) + 1; 5770 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5771 RATE_HT_MCS_INDEX(rate_n_flags) : 5772 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5773 5774 if (rate_n_flags & RATE_MCS_SGI_MSK) 5775 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5776 5777 switch (format) { 5778 case RATE_MCS_EHT_MSK: 5779 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5780 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5781 break; 5782 case RATE_MCS_HE_MSK: 5783 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5784 5785 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5786 5787 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5788 rinfo->bw = RATE_INFO_BW_HE_RU; 5789 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5790 } 5791 5792 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5793 case RATE_MCS_HE_TYPE_SU: 5794 case RATE_MCS_HE_TYPE_EXT_SU: 5795 if (gi_ltf == 0 || gi_ltf == 1) 5796 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5797 else if (gi_ltf == 2) 5798 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5799 else if (gi_ltf == 3) 5800 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5801 else 5802 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5803 break; 5804 case RATE_MCS_HE_TYPE_MU: 5805 if (gi_ltf == 0 || gi_ltf == 1) 5806 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5807 else if (gi_ltf == 2) 5808 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5809 else 5810 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5811 break; 5812 case RATE_MCS_HE_TYPE_TRIG: 5813 if (gi_ltf == 0 || gi_ltf == 1) 5814 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5815 else 5816 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5817 break; 5818 } 5819 5820 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5821 rinfo->he_dcm = 1; 5822 break; 5823 case RATE_MCS_HT_MSK: 5824 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5825 break; 5826 case RATE_MCS_VHT_MSK: 5827 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5828 break; 5829 } 5830 } 5831 5832 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5833 struct ieee80211_vif *vif, 5834 struct ieee80211_sta *sta, 5835 struct station_info *sinfo) 5836 { 5837 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5838 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5839 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5840 5841 if (mvmsta->deflink.avg_energy) { 5842 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5843 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5844 } 5845 5846 if (iwl_mvm_has_tlc_offload(mvm)) { 5847 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5848 5849 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5850 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5851 } 5852 5853 /* if beacon filtering isn't on mac80211 does it anyway */ 5854 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5855 return; 5856 5857 if (!vif->cfg.assoc) 5858 return; 5859 5860 mutex_lock(&mvm->mutex); 5861 5862 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5863 goto unlock; 5864 5865 if (iwl_mvm_request_statistics(mvm, false)) 5866 goto unlock; 5867 5868 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5869 mvmvif->deflink.beacon_stats.accu_num_beacons; 5870 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5871 if (mvmvif->deflink.beacon_stats.avg_signal) { 5872 /* firmware only reports a value after RXing a few beacons */ 5873 sinfo->rx_beacon_signal_avg = 5874 mvmvif->deflink.beacon_stats.avg_signal; 5875 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5876 } 5877 unlock: 5878 mutex_unlock(&mvm->mutex); 5879 } 5880 5881 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5882 struct ieee80211_vif *vif, 5883 const struct ieee80211_mlme_event *mlme) 5884 { 5885 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5886 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5887 iwl_dbg_tlv_time_point(&mvm->fwrt, 5888 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5889 NULL); 5890 return; 5891 } 5892 5893 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5894 iwl_dbg_tlv_time_point(&mvm->fwrt, 5895 IWL_FW_INI_TIME_POINT_DEASSOC, 5896 NULL); 5897 return; 5898 } 5899 } 5900 5901 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5902 struct ieee80211_vif *vif, 5903 const struct ieee80211_event *event) 5904 { 5905 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5906 do { \ 5907 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5908 break; \ 5909 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5910 } while (0) 5911 5912 struct iwl_fw_dbg_trigger_tlv *trig; 5913 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5914 5915 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5916 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5917 return; 5918 } 5919 5920 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5921 FW_DBG_TRIGGER_MLME); 5922 if (!trig) 5923 return; 5924 5925 trig_mlme = (void *)trig->data; 5926 5927 if (event->u.mlme.data == ASSOC_EVENT) { 5928 if (event->u.mlme.status == MLME_DENIED) 5929 CHECK_MLME_TRIGGER(stop_assoc_denied, 5930 "DENIED ASSOC: reason %d", 5931 event->u.mlme.reason); 5932 else if (event->u.mlme.status == MLME_TIMEOUT) 5933 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5934 "ASSOC TIMEOUT"); 5935 } else if (event->u.mlme.data == AUTH_EVENT) { 5936 if (event->u.mlme.status == MLME_DENIED) 5937 CHECK_MLME_TRIGGER(stop_auth_denied, 5938 "DENIED AUTH: reason %d", 5939 event->u.mlme.reason); 5940 else if (event->u.mlme.status == MLME_TIMEOUT) 5941 CHECK_MLME_TRIGGER(stop_auth_timeout, 5942 "AUTH TIMEOUT"); 5943 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5944 CHECK_MLME_TRIGGER(stop_rx_deauth, 5945 "DEAUTH RX %d", event->u.mlme.reason); 5946 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5947 CHECK_MLME_TRIGGER(stop_tx_deauth, 5948 "DEAUTH TX %d", event->u.mlme.reason); 5949 } 5950 #undef CHECK_MLME_TRIGGER 5951 } 5952 5953 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5954 struct ieee80211_vif *vif, 5955 const struct ieee80211_event *event) 5956 { 5957 struct iwl_fw_dbg_trigger_tlv *trig; 5958 struct iwl_fw_dbg_trigger_ba *ba_trig; 5959 5960 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5961 FW_DBG_TRIGGER_BA); 5962 if (!trig) 5963 return; 5964 5965 ba_trig = (void *)trig->data; 5966 5967 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5968 return; 5969 5970 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5971 "BAR received from %pM, tid %d, ssn %d", 5972 event->u.ba.sta->addr, event->u.ba.tid, 5973 event->u.ba.ssn); 5974 } 5975 5976 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5977 struct ieee80211_vif *vif, 5978 const struct ieee80211_event *event) 5979 { 5980 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5981 5982 switch (event->type) { 5983 case MLME_EVENT: 5984 iwl_mvm_event_mlme_callback(mvm, vif, event); 5985 break; 5986 case BAR_RX_EVENT: 5987 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5988 break; 5989 case BA_FRAME_TIMEOUT: 5990 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5991 event->u.ba.tid); 5992 break; 5993 default: 5994 break; 5995 } 5996 } 5997 5998 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5999 enum iwl_mvm_rxq_notif_type type, 6000 bool sync, 6001 const void *data, u32 size) 6002 { 6003 struct { 6004 struct iwl_rxq_sync_cmd cmd; 6005 struct iwl_mvm_internal_rxq_notif notif; 6006 } __packed cmd = { 6007 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6008 .cmd.count = 6009 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6010 size), 6011 .notif.type = type, 6012 .notif.sync = sync, 6013 }; 6014 struct iwl_host_cmd hcmd = { 6015 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6016 .data[0] = &cmd, 6017 .len[0] = sizeof(cmd), 6018 .data[1] = data, 6019 .len[1] = size, 6020 .flags = sync ? 0 : CMD_ASYNC, 6021 }; 6022 int ret; 6023 6024 /* size must be a multiple of DWORD */ 6025 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6026 return; 6027 6028 if (!iwl_mvm_has_new_rx_api(mvm)) 6029 return; 6030 6031 if (sync) { 6032 cmd.notif.cookie = mvm->queue_sync_cookie; 6033 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6034 } 6035 6036 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6037 if (ret) { 6038 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6039 goto out; 6040 } 6041 6042 if (sync) { 6043 lockdep_assert_held(&mvm->mutex); 6044 ret = wait_event_timeout(mvm->rx_sync_waitq, 6045 READ_ONCE(mvm->queue_sync_state) == 0 || 6046 iwl_mvm_is_radio_killed(mvm), 6047 HZ); 6048 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6049 "queue sync: failed to sync, state is 0x%lx\n", 6050 mvm->queue_sync_state); 6051 } 6052 6053 out: 6054 if (sync) { 6055 mvm->queue_sync_state = 0; 6056 mvm->queue_sync_cookie++; 6057 } 6058 } 6059 6060 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6061 { 6062 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6063 6064 mutex_lock(&mvm->mutex); 6065 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6066 mutex_unlock(&mvm->mutex); 6067 } 6068 6069 int 6070 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6071 struct ieee80211_vif *vif, 6072 struct cfg80211_ftm_responder_stats *stats) 6073 { 6074 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6075 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6076 6077 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6078 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6079 return -EINVAL; 6080 6081 mutex_lock(&mvm->mutex); 6082 *stats = mvm->ftm_resp_stats; 6083 mutex_unlock(&mvm->mutex); 6084 6085 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6086 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6087 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6088 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6089 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6090 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6091 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6092 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6093 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6094 6095 return 0; 6096 } 6097 6098 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6099 struct cfg80211_pmsr_request *request) 6100 { 6101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6102 int ret; 6103 6104 mutex_lock(&mvm->mutex); 6105 ret = iwl_mvm_ftm_start(mvm, vif, request); 6106 mutex_unlock(&mvm->mutex); 6107 6108 return ret; 6109 } 6110 6111 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6112 struct cfg80211_pmsr_request *request) 6113 { 6114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6115 6116 mutex_lock(&mvm->mutex); 6117 iwl_mvm_ftm_abort(mvm, request); 6118 mutex_unlock(&mvm->mutex); 6119 } 6120 6121 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6122 { 6123 u8 protocol = ip_hdr(skb)->protocol; 6124 6125 if (!IS_ENABLED(CONFIG_INET)) 6126 return false; 6127 6128 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6129 } 6130 6131 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6132 struct sk_buff *head, 6133 struct sk_buff *skb) 6134 { 6135 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6136 6137 if (iwl_mvm_has_new_tx_csum(mvm)) 6138 return iwl_mvm_tx_csum_bz(mvm, head, true) == 6139 iwl_mvm_tx_csum_bz(mvm, skb, true); 6140 6141 /* For now don't aggregate IPv6 in AMSDU */ 6142 if (skb->protocol != htons(ETH_P_IP)) 6143 return false; 6144 6145 if (!iwl_mvm_is_csum_supported(mvm)) 6146 return true; 6147 6148 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6149 } 6150 6151 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6152 struct ieee80211_vif *vif, 6153 struct cfg80211_set_hw_timestamp *hwts) 6154 { 6155 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6156 u32 protocols = 0; 6157 int ret; 6158 6159 /* HW timestamping is only supported for a specific station */ 6160 if (!hwts->macaddr) 6161 return -EOPNOTSUPP; 6162 6163 if (hwts->enable) 6164 protocols = 6165 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6166 6167 mutex_lock(&mvm->mutex); 6168 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6169 mutex_unlock(&mvm->mutex); 6170 6171 return ret; 6172 } 6173 6174 const struct ieee80211_ops iwl_mvm_hw_ops = { 6175 .tx = iwl_mvm_mac_tx, 6176 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6177 .ampdu_action = iwl_mvm_mac_ampdu_action, 6178 .get_antenna = iwl_mvm_op_get_antenna, 6179 .start = iwl_mvm_mac_start, 6180 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6181 .stop = iwl_mvm_mac_stop, 6182 .add_interface = iwl_mvm_mac_add_interface, 6183 .remove_interface = iwl_mvm_mac_remove_interface, 6184 .config = iwl_mvm_mac_config, 6185 .prepare_multicast = iwl_mvm_prepare_multicast, 6186 .configure_filter = iwl_mvm_configure_filter, 6187 .config_iface_filter = iwl_mvm_config_iface_filter, 6188 .bss_info_changed = iwl_mvm_bss_info_changed, 6189 .hw_scan = iwl_mvm_mac_hw_scan, 6190 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6191 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6192 .sta_state = iwl_mvm_mac_sta_state, 6193 .sta_notify = iwl_mvm_mac_sta_notify, 6194 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6195 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6196 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6197 .sta_rc_update = iwl_mvm_sta_rc_update, 6198 .conf_tx = iwl_mvm_mac_conf_tx, 6199 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6200 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6201 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6202 .flush = iwl_mvm_mac_flush, 6203 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6204 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6205 .set_key = iwl_mvm_mac_set_key, 6206 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6207 .remain_on_channel = iwl_mvm_roc, 6208 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6209 .add_chanctx = iwl_mvm_add_chanctx, 6210 .remove_chanctx = iwl_mvm_remove_chanctx, 6211 .change_chanctx = iwl_mvm_change_chanctx, 6212 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6213 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6214 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6215 6216 .start_ap = iwl_mvm_start_ap, 6217 .stop_ap = iwl_mvm_stop_ap, 6218 .join_ibss = iwl_mvm_start_ibss, 6219 .leave_ibss = iwl_mvm_stop_ibss, 6220 6221 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6222 6223 .set_tim = iwl_mvm_set_tim, 6224 6225 .channel_switch = iwl_mvm_channel_switch, 6226 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6227 .post_channel_switch = iwl_mvm_post_channel_switch, 6228 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6229 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6230 6231 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6232 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6233 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6234 6235 .event_callback = iwl_mvm_mac_event_callback, 6236 6237 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6238 6239 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6240 6241 #ifdef CONFIG_PM_SLEEP 6242 /* look at d3.c */ 6243 .suspend = iwl_mvm_suspend, 6244 .resume = iwl_mvm_resume, 6245 .set_wakeup = iwl_mvm_set_wakeup, 6246 .set_rekey_data = iwl_mvm_set_rekey_data, 6247 #if IS_ENABLED(CONFIG_IPV6) 6248 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6249 #endif 6250 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6251 #endif 6252 .get_survey = iwl_mvm_mac_get_survey, 6253 .sta_statistics = iwl_mvm_mac_sta_statistics, 6254 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6255 .start_pmsr = iwl_mvm_start_pmsr, 6256 .abort_pmsr = iwl_mvm_abort_pmsr, 6257 6258 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6259 #ifdef CONFIG_IWLWIFI_DEBUGFS 6260 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 6261 #endif 6262 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6263 }; 6264