1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2022 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-eeprom-parse.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #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 /* 1482 * Returns true if addding the interface is done 1483 * (either with success or failure) 1484 * 1485 * FIXME: remove this again and merge it in 1486 */ 1487 static bool iwl_mvm_mac_add_interface_common(struct iwl_mvm *mvm, 1488 struct ieee80211_hw *hw, 1489 struct ieee80211_vif *vif, 1490 int *ret) 1491 { 1492 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1493 1494 lockdep_assert_held(&mvm->mutex); 1495 1496 mvmvif->mvm = mvm; 1497 1498 /* the first link always points to the default one */ 1499 mvmvif->link[0] = &mvmvif->deflink; 1500 1501 /* 1502 * Not much to do here. The stack will not allow interface 1503 * types or combinations that we didn't advertise, so we 1504 * don't really have to check the types. 1505 */ 1506 1507 /* make sure that beacon statistics don't go backwards with FW reset */ 1508 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1509 mvmvif->deflink.beacon_stats.accu_num_beacons += 1510 mvmvif->deflink.beacon_stats.num_beacons; 1511 1512 /* Allocate resources for the MAC context, and add it to the fw */ 1513 *ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1514 if (*ret) 1515 return true; 1516 1517 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1518 1519 /* 1520 * The AP binding flow can be done only after the beacon 1521 * template is configured (which happens only in the mac80211 1522 * start_ap() flow), and adding the broadcast station can happen 1523 * only after the binding. 1524 * In addition, since modifying the MAC before adding a bcast 1525 * station is not allowed by the FW, delay the adding of MAC context to 1526 * the point where we can also add the bcast station. 1527 * In short: there's not much we can do at this point, other than 1528 * allocating resources :) 1529 */ 1530 if (vif->type == NL80211_IFTYPE_AP || 1531 vif->type == NL80211_IFTYPE_ADHOC) { 1532 iwl_mvm_vif_dbgfs_register(mvm, vif); 1533 return true; 1534 } 1535 1536 mvmvif->features |= hw->netdev_features; 1537 1538 return false; 1539 } 1540 1541 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1542 struct ieee80211_vif *vif) 1543 { 1544 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1545 int ret; 1546 1547 lockdep_assert_held(&mvm->mutex); 1548 1549 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1550 if (ret) { 1551 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1552 return ret; 1553 } 1554 1555 /* 1556 * Only queue for this station is the mcast queue, 1557 * which shouldn't be in TFD mask anyway 1558 */ 1559 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1560 vif->type, 1561 IWL_STA_MULTICAST); 1562 } 1563 1564 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1565 struct ieee80211_vif *vif) 1566 { 1567 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1568 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1569 int ret; 1570 1571 mutex_lock(&mvm->mutex); 1572 1573 /* Common for MLD and non-MLD API */ 1574 if (iwl_mvm_mac_add_interface_common(mvm, hw, vif, &ret)) 1575 goto out; 1576 1577 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1578 if (ret) 1579 goto out_unlock; 1580 1581 ret = iwl_mvm_power_update_mac(mvm); 1582 if (ret) 1583 goto out_remove_mac; 1584 1585 /* beacon filtering */ 1586 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1587 if (ret) 1588 goto out_remove_mac; 1589 1590 if (!mvm->bf_allowed_vif && 1591 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1592 mvm->bf_allowed_vif = mvmvif; 1593 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1594 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1595 } 1596 1597 /* 1598 * P2P_DEVICE interface does not have a channel context assigned to it, 1599 * so a dedicated PHY context is allocated to it and the corresponding 1600 * MAC context is bound to it at this stage. 1601 */ 1602 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1603 1604 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1605 if (!mvmvif->deflink.phy_ctxt) { 1606 ret = -ENOSPC; 1607 goto out_free_bf; 1608 } 1609 1610 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 1611 ret = iwl_mvm_binding_add_vif(mvm, vif); 1612 if (ret) 1613 goto out_unref_phy; 1614 1615 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1616 if (ret) 1617 goto out_unbind; 1618 1619 /* Save a pointer to p2p device vif, so it can later be used to 1620 * update the p2p device MAC when a GO is started/stopped */ 1621 mvm->p2p_device_vif = vif; 1622 } 1623 1624 iwl_mvm_tcm_add_vif(mvm, vif); 1625 INIT_DELAYED_WORK(&mvmvif->csa_work, 1626 iwl_mvm_channel_switch_disconnect_wk); 1627 1628 if (vif->type == NL80211_IFTYPE_MONITOR) { 1629 mvm->monitor_on = true; 1630 mvm->monitor_p80 = 1631 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1632 } 1633 1634 iwl_mvm_vif_dbgfs_register(mvm, vif); 1635 1636 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1637 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1638 !mvm->csme_vif && mvm->mei_registered) { 1639 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1640 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1641 mvm->csme_vif = vif; 1642 } 1643 1644 out: 1645 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1646 vif->type == NL80211_IFTYPE_ADHOC)) 1647 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1648 1649 goto out_unlock; 1650 1651 out_unbind: 1652 iwl_mvm_binding_remove_vif(mvm, vif); 1653 out_unref_phy: 1654 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1655 out_free_bf: 1656 if (mvm->bf_allowed_vif == mvmvif) { 1657 mvm->bf_allowed_vif = NULL; 1658 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1659 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1660 } 1661 out_remove_mac: 1662 mvmvif->deflink.phy_ctxt = NULL; 1663 iwl_mvm_mac_ctxt_remove(mvm, vif); 1664 out_unlock: 1665 mutex_unlock(&mvm->mutex); 1666 1667 return ret; 1668 } 1669 1670 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1671 struct ieee80211_vif *vif) 1672 { 1673 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1674 /* 1675 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1676 * We assume here that all the packets sent to the OFFCHANNEL 1677 * queue are sent in ROC session. 1678 */ 1679 flush_work(&mvm->roc_done_wk); 1680 } 1681 } 1682 1683 /* This function is doing the common part of removing the interface for 1684 * both - MLD and non-MLD modes. Returns true if removing the interface 1685 * is done 1686 */ 1687 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1688 struct ieee80211_vif *vif) 1689 { 1690 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1691 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1692 struct iwl_probe_resp_data *probe_data; 1693 1694 iwl_mvm_prepare_mac_removal(mvm, vif); 1695 1696 if (!(vif->type == NL80211_IFTYPE_AP || 1697 vif->type == NL80211_IFTYPE_ADHOC)) 1698 iwl_mvm_tcm_rm_vif(mvm, vif); 1699 1700 mutex_lock(&mvm->mutex); 1701 1702 if (vif == mvm->csme_vif) { 1703 iwl_mei_set_netdev(NULL); 1704 mvm->csme_vif = NULL; 1705 } 1706 1707 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1708 lockdep_is_held(&mvm->mutex)); 1709 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1710 if (probe_data) 1711 kfree_rcu(probe_data, rcu_head); 1712 1713 if (mvm->bf_allowed_vif == mvmvif) { 1714 mvm->bf_allowed_vif = NULL; 1715 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1716 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1717 } 1718 1719 if (vif->bss_conf.ftm_responder) 1720 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1721 1722 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1723 1724 /* 1725 * For AP/GO interface, the tear down of the resources allocated to the 1726 * interface is be handled as part of the stop_ap flow. 1727 */ 1728 if (vif->type == NL80211_IFTYPE_AP || 1729 vif->type == NL80211_IFTYPE_ADHOC) { 1730 #ifdef CONFIG_NL80211_TESTMODE 1731 if (vif == mvm->noa_vif) { 1732 mvm->noa_vif = NULL; 1733 mvm->noa_duration = 0; 1734 } 1735 #endif 1736 return true; 1737 } 1738 1739 iwl_mvm_power_update_mac(mvm); 1740 return false; 1741 } 1742 1743 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1744 struct ieee80211_vif *vif) 1745 { 1746 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1747 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1748 1749 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1750 goto out; 1751 1752 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1753 mvm->p2p_device_vif = NULL; 1754 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1755 iwl_mvm_binding_remove_vif(mvm, vif); 1756 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1757 mvmvif->deflink.phy_ctxt = NULL; 1758 } 1759 1760 iwl_mvm_mac_ctxt_remove(mvm, vif); 1761 1762 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1763 1764 if (vif->type == NL80211_IFTYPE_MONITOR) 1765 mvm->monitor_on = false; 1766 1767 out: 1768 if (vif->type == NL80211_IFTYPE_AP || 1769 vif->type == NL80211_IFTYPE_ADHOC) { 1770 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1771 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1772 } 1773 1774 mutex_unlock(&mvm->mutex); 1775 } 1776 1777 struct iwl_mvm_mc_iter_data { 1778 struct iwl_mvm *mvm; 1779 int port_id; 1780 }; 1781 1782 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1783 struct ieee80211_vif *vif) 1784 { 1785 struct iwl_mvm_mc_iter_data *data = _data; 1786 struct iwl_mvm *mvm = data->mvm; 1787 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1788 struct iwl_host_cmd hcmd = { 1789 .id = MCAST_FILTER_CMD, 1790 .flags = CMD_ASYNC, 1791 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1792 }; 1793 int ret, len; 1794 1795 /* if we don't have free ports, mcast frames will be dropped */ 1796 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1797 return; 1798 1799 if (vif->type != NL80211_IFTYPE_STATION || 1800 !vif->cfg.assoc) 1801 return; 1802 1803 cmd->port_id = data->port_id++; 1804 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1805 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1806 1807 hcmd.len[0] = len; 1808 hcmd.data[0] = cmd; 1809 1810 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1811 if (ret) 1812 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1813 } 1814 1815 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1816 { 1817 struct iwl_mvm_mc_iter_data iter_data = { 1818 .mvm = mvm, 1819 }; 1820 int ret; 1821 1822 lockdep_assert_held(&mvm->mutex); 1823 1824 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1825 return; 1826 1827 ieee80211_iterate_active_interfaces_atomic( 1828 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1829 iwl_mvm_mc_iface_iterator, &iter_data); 1830 1831 /* 1832 * Send a (synchronous) ech command so that we wait for the 1833 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1834 * the interface iterator. Otherwise, we might get here over 1835 * and over again (by userspace just sending a lot of these) 1836 * and the CPU can send them faster than the firmware can 1837 * process them. 1838 * Note that the CPU is still faster - but with this we'll 1839 * actually send fewer commands overall because the CPU will 1840 * not schedule the work in mac80211 as frequently if it's 1841 * still running when rescheduled (possibly multiple times). 1842 */ 1843 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1844 if (ret) 1845 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1846 } 1847 1848 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1849 struct netdev_hw_addr_list *mc_list) 1850 { 1851 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1852 struct iwl_mcast_filter_cmd *cmd; 1853 struct netdev_hw_addr *addr; 1854 int addr_count; 1855 bool pass_all; 1856 int len; 1857 1858 addr_count = netdev_hw_addr_list_count(mc_list); 1859 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1860 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1861 if (pass_all) 1862 addr_count = 0; 1863 1864 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1865 cmd = kzalloc(len, GFP_ATOMIC); 1866 if (!cmd) 1867 return 0; 1868 1869 if (pass_all) { 1870 cmd->pass_all = 1; 1871 return (u64)(unsigned long)cmd; 1872 } 1873 1874 netdev_hw_addr_list_for_each(addr, mc_list) { 1875 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1876 cmd->count, addr->addr); 1877 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1878 addr->addr, ETH_ALEN); 1879 cmd->count++; 1880 } 1881 1882 return (u64)(unsigned long)cmd; 1883 } 1884 1885 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1886 unsigned int changed_flags, 1887 unsigned int *total_flags, u64 multicast) 1888 { 1889 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1890 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1891 1892 mutex_lock(&mvm->mutex); 1893 1894 /* replace previous configuration */ 1895 kfree(mvm->mcast_filter_cmd); 1896 mvm->mcast_filter_cmd = cmd; 1897 1898 if (!cmd) 1899 goto out; 1900 1901 if (changed_flags & FIF_ALLMULTI) 1902 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1903 1904 if (cmd->pass_all) 1905 cmd->count = 0; 1906 1907 iwl_mvm_recalc_multicast(mvm); 1908 out: 1909 mutex_unlock(&mvm->mutex); 1910 *total_flags = 0; 1911 } 1912 1913 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1914 struct ieee80211_vif *vif, 1915 unsigned int filter_flags, 1916 unsigned int changed_flags) 1917 { 1918 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1919 1920 /* We support only filter for probe requests */ 1921 if (!(changed_flags & FIF_PROBE_REQ)) 1922 return; 1923 1924 /* Supported only for p2p client interfaces */ 1925 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1926 !vif->p2p) 1927 return; 1928 1929 mutex_lock(&mvm->mutex); 1930 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1931 mutex_unlock(&mvm->mutex); 1932 } 1933 1934 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1935 { 1936 struct iwl_mu_group_mgmt_cmd cmd = {}; 1937 1938 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1939 WLAN_MEMBERSHIP_LEN); 1940 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1941 WLAN_USER_POSITION_LEN); 1942 1943 return iwl_mvm_send_cmd_pdu(mvm, 1944 WIDE_ID(DATA_PATH_GROUP, 1945 UPDATE_MU_GROUPS_CMD), 1946 0, sizeof(cmd), &cmd); 1947 } 1948 1949 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1950 struct ieee80211_vif *vif) 1951 { 1952 if (vif->bss_conf.mu_mimo_owner) { 1953 struct iwl_mu_group_mgmt_notif *notif = _data; 1954 1955 /* 1956 * MU-MIMO Group Id action frame is little endian. We treat 1957 * the data received from firmware as if it came from the 1958 * action frame, so no conversion is needed. 1959 */ 1960 ieee80211_update_mu_groups(vif, 0, 1961 (u8 *)¬if->membership_status, 1962 (u8 *)¬if->user_position); 1963 } 1964 } 1965 1966 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1967 struct iwl_rx_cmd_buffer *rxb) 1968 { 1969 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1970 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1971 1972 ieee80211_iterate_active_interfaces_atomic( 1973 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1974 iwl_mvm_mu_mimo_iface_iterator, notif); 1975 } 1976 1977 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1978 { 1979 u8 byte_num = ppe_pos_bit / 8; 1980 u8 bit_num = ppe_pos_bit % 8; 1981 u8 residue_bits; 1982 u8 res; 1983 1984 if (bit_num <= 5) 1985 return (ppe[byte_num] >> bit_num) & 1986 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1987 1988 /* 1989 * If bit_num > 5, we have to combine bits with next byte. 1990 * Calculate how many bits we need to take from current byte (called 1991 * here "residue_bits"), and add them to bits from next byte. 1992 */ 1993 1994 residue_bits = 8 - bit_num; 1995 1996 res = (ppe[byte_num + 1] & 1997 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1998 residue_bits; 1999 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2000 2001 return res; 2002 } 2003 2004 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2005 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2006 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2007 bool inheritance) 2008 { 2009 int i; 2010 2011 /* 2012 * FW currently supports only nss == MAX_HE_SUPP_NSS 2013 * 2014 * If nss > MAX: we can ignore values we don't support 2015 * If nss < MAX: we can set zeros in other streams 2016 */ 2017 if (nss > MAX_HE_SUPP_NSS) { 2018 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2019 MAX_HE_SUPP_NSS); 2020 nss = MAX_HE_SUPP_NSS; 2021 } 2022 2023 for (i = 0; i < nss; i++) { 2024 u8 ru_index_tmp = ru_index_bitmap << 1; 2025 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2026 u8 bw; 2027 2028 for (bw = 0; 2029 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2030 bw++) { 2031 ru_index_tmp >>= 1; 2032 2033 /* 2034 * According to the 11be spec, if for a specific BW the PPE Thresholds 2035 * isn't present - it should inherit the thresholds from the last 2036 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2037 * this inheritance - continue in this case 2038 */ 2039 if (!(ru_index_tmp & 1)) { 2040 if (inheritance) 2041 goto set_thresholds; 2042 else 2043 continue; 2044 } 2045 2046 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2047 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2048 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2049 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2050 2051 set_thresholds: 2052 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2053 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2054 } 2055 } 2056 } 2057 2058 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2059 struct ieee80211_link_sta *link_sta, 2060 struct iwl_he_pkt_ext_v2 *pkt_ext, 2061 bool inheritance) 2062 { 2063 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2064 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2065 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2066 u8 ru_index_bitmap = 2067 u8_get_bits(*ppe, 2068 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2069 /* Starting after PPE header */ 2070 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2071 2072 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2073 inheritance); 2074 } 2075 2076 static int 2077 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2078 u8 nominal_padding) 2079 { 2080 int low_th = -1; 2081 int high_th = -1; 2082 int i; 2083 2084 /* all the macros are the same for EHT and HE */ 2085 switch (nominal_padding) { 2086 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2087 low_th = IWL_HE_PKT_EXT_NONE; 2088 high_th = IWL_HE_PKT_EXT_NONE; 2089 break; 2090 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2091 low_th = IWL_HE_PKT_EXT_BPSK; 2092 high_th = IWL_HE_PKT_EXT_NONE; 2093 break; 2094 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2095 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2096 low_th = IWL_HE_PKT_EXT_NONE; 2097 high_th = IWL_HE_PKT_EXT_BPSK; 2098 break; 2099 } 2100 2101 if (low_th < 0 || high_th < 0) 2102 return -EINVAL; 2103 2104 /* Set the PPE thresholds accordingly */ 2105 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2106 u8 bw; 2107 2108 for (bw = 0; 2109 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2110 bw++) { 2111 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2112 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2113 } 2114 } 2115 2116 return 0; 2117 } 2118 2119 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2120 u8 nominal_padding) 2121 { 2122 int i; 2123 2124 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2125 u8 bw; 2126 2127 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2128 bw++) { 2129 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2130 2131 if (nominal_padding > 2132 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2133 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2134 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2135 else if (nominal_padding == 2136 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2137 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2138 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2139 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2140 } 2141 } 2142 } 2143 2144 /* Set the pkt_ext field according to PPE Thresholds element */ 2145 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2146 struct ieee80211_link_sta *link_sta, 2147 struct iwl_he_pkt_ext_v2 *pkt_ext) 2148 { 2149 u8 nominal_padding; 2150 int i, ret = 0; 2151 2152 if (WARN_ON(!link_sta)) 2153 return -EINVAL; 2154 2155 /* Initialize the PPE thresholds to "None" (7), as described in Table 2156 * 9-262ac of 80211.ax/D3.0. 2157 */ 2158 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2159 sizeof(struct iwl_he_pkt_ext_v2)); 2160 2161 if (link_sta->eht_cap.has_eht) { 2162 nominal_padding = 2163 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2164 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2165 2166 /* If PPE Thresholds exists, parse them into a FW-familiar 2167 * format. 2168 */ 2169 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2170 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2171 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2172 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2173 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2174 u8 ru_index_bitmap = 2175 u16_get_bits(*ppe, 2176 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2177 /* Starting after PPE header */ 2178 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2179 2180 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2181 ppe, ppe_pos_bit, true); 2182 /* EHT PPE Thresholds doesn't exist - set the API according to 2183 * HE PPE Tresholds 2184 */ 2185 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2186 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2187 /* Even though HE Capabilities IE doesn't contain PPE 2188 * Thresholds for BW 320Mhz, thresholds for this BW will 2189 * be filled in with the same values as 160Mhz, due to 2190 * the inheritance, as required. 2191 */ 2192 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2193 true); 2194 2195 /* According to the requirements, for MCSs 12-13 the 2196 * maximum value between HE PPE Threshold and Common 2197 * Nominal Packet Padding needs to be taken 2198 */ 2199 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2200 2201 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2202 * take the Thresholds from Common Nominal Packet Padding field 2203 */ 2204 } else { 2205 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2206 nominal_padding); 2207 } 2208 } else if (link_sta->he_cap.has_he) { 2209 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2210 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2211 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2212 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2213 false); 2214 /* PPE Thresholds doesn't exist - set the API PPE values 2215 * according to Common Nominal Packet Padding field. 2216 */ 2217 } else { 2218 nominal_padding = 2219 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2220 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2221 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2222 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2223 nominal_padding); 2224 } 2225 } 2226 2227 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2228 int bw; 2229 2230 for (bw = 0; 2231 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2232 bw++) { 2233 u8 *qam_th = 2234 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2235 2236 IWL_DEBUG_HT(mvm, 2237 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2238 i, bw, qam_th[0], qam_th[1]); 2239 } 2240 } 2241 return ret; 2242 } 2243 2244 /* 2245 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2246 * is enabled or not 2247 */ 2248 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2249 struct iwl_mvm_vif *mvmvif, 2250 struct iwl_he_backoff_conf *trig_based_txf) 2251 { 2252 int i; 2253 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2254 bool mu_edca_enabled = true; 2255 2256 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2257 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2258 &mvmvif->deflink.queue_params[i].mu_edca_param_rec; 2259 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2260 2261 if (!mvmvif->deflink.queue_params[i].mu_edca) { 2262 mu_edca_enabled = false; 2263 break; 2264 } 2265 2266 trig_based_txf[ac].cwmin = 2267 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2268 trig_based_txf[ac].cwmax = 2269 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2270 trig_based_txf[ac].aifsn = 2271 cpu_to_le16(mu_edca->aifsn & 0xf); 2272 trig_based_txf[ac].mu_time = 2273 cpu_to_le16(mu_edca->mu_edca_timer); 2274 } 2275 2276 return mu_edca_enabled; 2277 } 2278 2279 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2280 { 2281 const struct ieee80211_supported_band *sband; 2282 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2283 2284 /* This capability is the same for all bands, 2285 * so take it from one of them. 2286 */ 2287 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2288 own_he_cap = ieee80211_get_he_iftype_cap(sband, 2289 ieee80211_vif_type_p2p(vif)); 2290 2291 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2292 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2293 } 2294 2295 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2296 struct ieee80211_link_sta *link_sta) 2297 { 2298 u8 *mac_cap_info = 2299 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2300 __le32 htc_flags = 0; 2301 2302 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2303 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2304 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2305 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2306 u8 link_adap = 2307 ((mac_cap_info[2] & 2308 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2309 (mac_cap_info[1] & 2310 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2311 2312 if (link_adap == 2) 2313 htc_flags |= 2314 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2315 else if (link_adap == 3) 2316 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2317 } 2318 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2319 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2320 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2321 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2322 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2323 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2324 2325 return htc_flags; 2326 } 2327 2328 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2329 struct ieee80211_vif *vif, u8 sta_id) 2330 { 2331 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2332 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2333 .sta_id = sta_id, 2334 .tid_limit = IWL_MAX_TID_COUNT, 2335 .bss_color = vif->bss_conf.he_bss_color.color, 2336 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2337 .frame_time_rts_th = 2338 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2339 }; 2340 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2341 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2342 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2343 int size; 2344 struct ieee80211_sta *sta; 2345 u32 flags; 2346 int i; 2347 void *cmd; 2348 2349 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2350 ver = 1; 2351 2352 switch (ver) { 2353 case 1: 2354 /* same layout as v2 except some data at the end */ 2355 cmd = &sta_ctxt_cmd_v2; 2356 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2357 break; 2358 case 2: 2359 cmd = &sta_ctxt_cmd_v2; 2360 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2361 break; 2362 case 3: 2363 cmd = &sta_ctxt_cmd; 2364 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2365 break; 2366 default: 2367 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2368 return; 2369 } 2370 2371 rcu_read_lock(); 2372 2373 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2374 if (IS_ERR_OR_NULL(sta)) { 2375 rcu_read_unlock(); 2376 WARN(1, "Can't find STA to configure HE\n"); 2377 return; 2378 } 2379 2380 if (!sta->deflink.he_cap.has_he) { 2381 rcu_read_unlock(); 2382 return; 2383 } 2384 2385 flags = 0; 2386 2387 /* Block 26-tone RU OFDMA transmissions */ 2388 if (mvmvif->deflink.he_ru_2mhz_block) 2389 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2390 2391 /* HTC flags */ 2392 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2393 2394 /* PPE Thresholds */ 2395 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2396 flags |= STA_CTXT_HE_PACKET_EXT; 2397 2398 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2399 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2400 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2401 2402 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2403 IEEE80211_HE_MAC_CAP2_ACK_EN) 2404 flags |= STA_CTXT_HE_ACK_ENABLED; 2405 2406 rcu_read_unlock(); 2407 2408 if (iwl_mvm_set_fw_mu_edca_params(mvm, mvmvif, 2409 &sta_ctxt_cmd.trig_based_txf[0])) 2410 flags |= STA_CTXT_HE_MU_EDCA_CW; 2411 2412 if (vif->bss_conf.uora_exists) { 2413 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2414 2415 sta_ctxt_cmd.rand_alloc_ecwmin = 2416 vif->bss_conf.uora_ocw_range & 0x7; 2417 sta_ctxt_cmd.rand_alloc_ecwmax = 2418 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2419 } 2420 2421 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2422 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2423 2424 if (vif->bss_conf.nontransmitted) { 2425 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2426 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2427 vif->bss_conf.transmitter_bssid); 2428 sta_ctxt_cmd.max_bssid_indicator = 2429 vif->bss_conf.bssid_indicator; 2430 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2431 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2432 sta_ctxt_cmd.profile_periodicity = 2433 vif->bss_conf.profile_periodicity; 2434 } 2435 2436 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2437 2438 if (ver < 3) { 2439 /* fields before pkt_ext */ 2440 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2441 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2442 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2443 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2444 2445 /* pkt_ext */ 2446 for (i = 0; 2447 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2448 i++) { 2449 u8 bw; 2450 2451 for (bw = 0; 2452 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2453 bw++) { 2454 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2455 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2456 2457 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2458 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2459 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2460 } 2461 } 2462 2463 /* fields after pkt_ext */ 2464 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2465 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2466 sizeof(sta_ctxt_cmd_v2) - 2467 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2468 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2469 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2470 (u8 *)&sta_ctxt_cmd + 2471 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2472 sizeof(sta_ctxt_cmd) - 2473 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2474 sta_ctxt_cmd_v2.reserved3 = 0; 2475 } 2476 2477 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2478 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2479 } 2480 2481 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2482 u32 duration_override) 2483 { 2484 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2485 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2486 2487 if (duration_override > duration) 2488 duration = duration_override; 2489 2490 /* Try really hard to protect the session and hear a beacon 2491 * The new session protection command allows us to protect the 2492 * session for a much longer time since the firmware will internally 2493 * create two events: a 300TU one with a very high priority that 2494 * won't be fragmented which should be enough for 99% of the cases, 2495 * and another one (which we configure here to be 900TU long) which 2496 * will have a slightly lower priority, but more importantly, can be 2497 * fragmented so that it'll allow other activities to run. 2498 */ 2499 if (fw_has_capa(&mvm->fw->ucode_capa, 2500 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2501 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2502 min_duration, false); 2503 else 2504 iwl_mvm_protect_session(mvm, vif, duration, 2505 min_duration, 500, false); 2506 } 2507 2508 /* Handle association common part to MLD and non-MLD modes */ 2509 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2510 struct ieee80211_vif *vif, 2511 u64 changes) 2512 { 2513 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2514 int ret; 2515 2516 /* The firmware tracks the MU-MIMO group on its own. 2517 * However, on HW restart we should restore this data. 2518 */ 2519 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2520 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2521 ret = iwl_mvm_update_mu_groups(mvm, vif); 2522 if (ret) 2523 IWL_ERR(mvm, 2524 "failed to update VHT MU_MIMO groups\n"); 2525 } 2526 2527 iwl_mvm_recalc_multicast(mvm); 2528 2529 /* reset rssi values */ 2530 mvmvif->bf_data.ave_beacon_signal = 0; 2531 2532 iwl_mvm_bt_coex_vif_change(mvm); 2533 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2534 IEEE80211_SMPS_AUTOMATIC); 2535 if (fw_has_capa(&mvm->fw->ucode_capa, 2536 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2537 iwl_mvm_config_scan(mvm); 2538 } 2539 2540 /* Execute the common part for MLD and non-MLD modes */ 2541 void 2542 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2543 struct ieee80211_vif *vif, 2544 struct ieee80211_bss_conf *link_conf, 2545 u64 changes) 2546 { 2547 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2548 int ret; 2549 2550 if (changes & BSS_CHANGED_BEACON_INFO) { 2551 /* We received a beacon from the associated AP so 2552 * remove the session protection. 2553 */ 2554 iwl_mvm_stop_session_protection(mvm, vif); 2555 2556 iwl_mvm_sf_update(mvm, vif, false); 2557 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2558 } 2559 2560 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2561 /* Send power command on every beacon change, 2562 * because we may have not enabled beacon abort yet. 2563 */ 2564 BSS_CHANGED_BEACON_INFO)) { 2565 ret = iwl_mvm_power_update_mac(mvm); 2566 if (ret) 2567 IWL_ERR(mvm, "failed to update power mode\n"); 2568 } 2569 2570 if (changes & BSS_CHANGED_CQM) { 2571 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2572 /* reset cqm events tracking */ 2573 mvmvif->bf_data.last_cqm_event = 0; 2574 if (mvmvif->bf_data.bf_enabled) { 2575 /* FIXME: need to update per link when FW API will 2576 * support it 2577 */ 2578 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2579 if (ret) 2580 IWL_ERR(mvm, 2581 "failed to update CQM thresholds\n"); 2582 } 2583 } 2584 2585 if (changes & BSS_CHANGED_BANDWIDTH) 2586 iwl_mvm_update_link_smps(vif, link_conf); 2587 } 2588 2589 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2590 struct ieee80211_vif *vif, 2591 struct ieee80211_bss_conf *bss_conf, 2592 u64 changes) 2593 { 2594 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2595 int ret; 2596 2597 /* 2598 * Re-calculate the tsf id, as the leader-follower relations depend 2599 * on the beacon interval, which was not known when the station 2600 * interface was added. 2601 */ 2602 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2603 if ((vif->bss_conf.he_support && 2604 !iwlwifi_mod_params.disable_11ax) || 2605 (vif->bss_conf.eht_support && 2606 !iwlwifi_mod_params.disable_11be)) 2607 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2608 2609 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2610 } 2611 2612 /* Update MU EDCA params */ 2613 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2614 vif->cfg.assoc && 2615 ((vif->bss_conf.he_support && 2616 !iwlwifi_mod_params.disable_11ax) || 2617 (vif->bss_conf.eht_support && 2618 !iwlwifi_mod_params.disable_11be))) 2619 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2620 2621 /* 2622 * If we're not associated yet, take the (new) BSSID before associating 2623 * so the firmware knows. If we're already associated, then use the old 2624 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2625 * branch for disassociation below. 2626 */ 2627 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2628 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2629 2630 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2631 if (ret) 2632 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2633 2634 /* after sending it once, adopt mac80211 data */ 2635 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2636 mvmvif->associated = vif->cfg.assoc; 2637 2638 if (changes & BSS_CHANGED_ASSOC) { 2639 if (vif->cfg.assoc) { 2640 /* clear statistics to get clean beacon counter */ 2641 iwl_mvm_request_statistics(mvm, true); 2642 memset(&mvmvif->deflink.beacon_stats, 0, 2643 sizeof(mvmvif->deflink.beacon_stats)); 2644 2645 /* add quota for this interface */ 2646 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2647 if (ret) { 2648 IWL_ERR(mvm, "failed to update quotas\n"); 2649 return; 2650 } 2651 2652 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2653 &mvm->status) && 2654 !fw_has_capa(&mvm->fw->ucode_capa, 2655 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2656 /* 2657 * If we're restarting then the firmware will 2658 * obviously have lost synchronisation with 2659 * the AP. It will attempt to synchronise by 2660 * itself, but we can make it more reliable by 2661 * scheduling a session protection time event. 2662 * 2663 * The firmware needs to receive a beacon to 2664 * catch up with synchronisation, use 110% of 2665 * the beacon interval. 2666 * 2667 * Set a large maximum delay to allow for more 2668 * than a single interface. 2669 * 2670 * For new firmware versions, rely on the 2671 * firmware. This is relevant for DCM scenarios 2672 * only anyway. 2673 */ 2674 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2675 iwl_mvm_protect_session(mvm, vif, dur, dur, 2676 5 * dur, false); 2677 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2678 &mvm->status) && 2679 !vif->bss_conf.dtim_period) { 2680 /* 2681 * If we're not restarting and still haven't 2682 * heard a beacon (dtim period unknown) then 2683 * make sure we still have enough minimum time 2684 * remaining in the time event, since the auth 2685 * might actually have taken quite a while 2686 * (especially for SAE) and so the remaining 2687 * time could be small without us having heard 2688 * a beacon yet. 2689 */ 2690 iwl_mvm_protect_assoc(mvm, vif, 0); 2691 } 2692 2693 iwl_mvm_sf_update(mvm, vif, false); 2694 iwl_mvm_power_vif_assoc(mvm, vif); 2695 if (vif->p2p) { 2696 iwl_mvm_update_smps(mvm, vif, 2697 IWL_MVM_SMPS_REQ_PROT, 2698 IEEE80211_SMPS_DYNAMIC, 0); 2699 } 2700 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2701 iwl_mvm_mei_host_disassociated(mvm); 2702 /* 2703 * If update fails - SF might be running in associated 2704 * mode while disassociated - which is forbidden. 2705 */ 2706 ret = iwl_mvm_sf_update(mvm, vif, false); 2707 WARN_ONCE(ret && 2708 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2709 &mvm->status), 2710 "Failed to update SF upon disassociation\n"); 2711 2712 /* 2713 * If we get an assert during the connection (after the 2714 * station has been added, but before the vif is set 2715 * to associated), mac80211 will re-add the station and 2716 * then configure the vif. Since the vif is not 2717 * associated, we would remove the station here and 2718 * this would fail the recovery. 2719 */ 2720 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2721 &mvm->status)) { 2722 /* first remove remaining keys */ 2723 iwl_mvm_sec_key_remove_ap(mvm, vif, 2724 &mvmvif->deflink, 0); 2725 2726 /* 2727 * Remove AP station now that 2728 * the MAC is unassoc 2729 */ 2730 ret = iwl_mvm_rm_sta_id(mvm, vif, 2731 mvmvif->deflink.ap_sta_id); 2732 if (ret) 2733 IWL_ERR(mvm, 2734 "failed to remove AP station\n"); 2735 2736 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2737 } 2738 2739 /* remove quota for this interface */ 2740 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2741 if (ret) 2742 IWL_ERR(mvm, "failed to update quotas\n"); 2743 2744 /* this will take the cleared BSSID from bss_conf */ 2745 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2746 if (ret) 2747 IWL_ERR(mvm, 2748 "failed to update MAC %pM (clear after unassoc)\n", 2749 vif->addr); 2750 } 2751 2752 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2753 } 2754 2755 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2756 changes); 2757 } 2758 2759 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2760 struct ieee80211_vif *vif, 2761 int *ret) 2762 { 2763 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2764 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2765 int i; 2766 2767 lockdep_assert_held(&mvm->mutex); 2768 2769 mvmvif->ap_assoc_sta_count = 0; 2770 2771 /* must be set before quota calculations */ 2772 mvmvif->ap_ibss_active = true; 2773 2774 /* send all the early keys to the device now */ 2775 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2776 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2777 2778 if (!key) 2779 continue; 2780 2781 mvmvif->ap_early_keys[i] = NULL; 2782 2783 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2784 if (*ret) 2785 return true; 2786 } 2787 2788 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2789 iwl_mvm_vif_set_low_latency(mvmvif, true, 2790 LOW_LATENCY_VIF_TYPE); 2791 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2792 } 2793 2794 /* power updated needs to be done before quotas */ 2795 iwl_mvm_power_update_mac(mvm); 2796 2797 return false; 2798 } 2799 2800 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2801 struct ieee80211_vif *vif, 2802 struct ieee80211_bss_conf *link_conf) 2803 { 2804 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2805 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2806 int ret; 2807 2808 mutex_lock(&mvm->mutex); 2809 2810 /* 2811 * Re-calculate the tsf id, as the leader-follower relations depend on 2812 * the beacon interval, which was not known when the AP interface 2813 * was added. 2814 */ 2815 if (vif->type == NL80211_IFTYPE_AP) 2816 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2817 2818 /* For older devices need to send beacon template before adding mac 2819 * context. For the newer, the beacon is a resource that belongs to a 2820 * MAC, so need to send beacon template after adding the mac. 2821 */ 2822 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2823 /* Add the mac context */ 2824 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2825 if (ret) 2826 goto out_unlock; 2827 2828 /* Send the beacon template */ 2829 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2830 if (ret) 2831 goto out_unlock; 2832 } else { 2833 /* Send the beacon template */ 2834 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2835 if (ret) 2836 goto out_unlock; 2837 2838 /* Add the mac context */ 2839 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2840 if (ret) 2841 goto out_unlock; 2842 } 2843 2844 /* Perform the binding */ 2845 ret = iwl_mvm_binding_add_vif(mvm, vif); 2846 if (ret) 2847 goto out_remove; 2848 2849 /* 2850 * This is not very nice, but the simplest: 2851 * For older FWs adding the mcast sta before the bcast station may 2852 * cause assert 0x2b00. 2853 * This is fixed in later FW so make the order of removal depend on 2854 * the TLV 2855 */ 2856 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2857 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2858 if (ret) 2859 goto out_unbind; 2860 /* 2861 * Send the bcast station. At this stage the TBTT and DTIM time 2862 * events are added and applied to the scheduler 2863 */ 2864 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2865 if (ret) { 2866 iwl_mvm_rm_mcast_sta(mvm, vif); 2867 goto out_unbind; 2868 } 2869 } else { 2870 /* 2871 * Send the bcast station. At this stage the TBTT and DTIM time 2872 * events are added and applied to the scheduler 2873 */ 2874 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2875 if (ret) 2876 goto out_unbind; 2877 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2878 if (ret) { 2879 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2880 goto out_unbind; 2881 } 2882 } 2883 2884 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2885 goto out_failed; 2886 2887 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2888 if (ret) 2889 goto out_failed; 2890 2891 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2892 if (vif->p2p && mvm->p2p_device_vif) 2893 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2894 2895 iwl_mvm_bt_coex_vif_change(mvm); 2896 2897 /* we don't support TDLS during DCM */ 2898 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2899 iwl_mvm_teardown_tdls_peers(mvm); 2900 2901 iwl_mvm_ftm_restart_responder(mvm, vif); 2902 2903 goto out_unlock; 2904 2905 out_failed: 2906 iwl_mvm_power_update_mac(mvm); 2907 mvmvif->ap_ibss_active = false; 2908 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2909 iwl_mvm_rm_mcast_sta(mvm, vif); 2910 out_unbind: 2911 iwl_mvm_binding_remove_vif(mvm, vif); 2912 out_remove: 2913 iwl_mvm_mac_ctxt_remove(mvm, vif); 2914 out_unlock: 2915 mutex_unlock(&mvm->mutex); 2916 return ret; 2917 } 2918 2919 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2920 struct ieee80211_vif *vif, 2921 struct ieee80211_bss_conf *link_conf) 2922 { 2923 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2924 } 2925 2926 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2927 struct ieee80211_vif *vif) 2928 { 2929 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2930 } 2931 2932 /* Common part for MLD and non-MLD ops */ 2933 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2934 struct ieee80211_vif *vif) 2935 { 2936 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2937 2938 lockdep_assert_held(&mvm->mutex); 2939 2940 iwl_mvm_prepare_mac_removal(mvm, vif); 2941 2942 /* Handle AP stop while in CSA */ 2943 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2944 iwl_mvm_remove_time_event(mvm, mvmvif, 2945 &mvmvif->time_event_data); 2946 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2947 mvmvif->csa_countdown = false; 2948 } 2949 2950 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2951 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2952 mvm->csa_tx_block_bcn_timeout = 0; 2953 } 2954 2955 mvmvif->ap_ibss_active = false; 2956 mvm->ap_last_beacon_gp2 = 0; 2957 2958 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2959 iwl_mvm_vif_set_low_latency(mvmvif, false, 2960 LOW_LATENCY_VIF_TYPE); 2961 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2962 } 2963 2964 iwl_mvm_bt_coex_vif_change(mvm); 2965 } 2966 2967 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2968 struct ieee80211_vif *vif, 2969 struct ieee80211_bss_conf *link_conf) 2970 { 2971 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2972 2973 mutex_lock(&mvm->mutex); 2974 2975 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2976 2977 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2978 if (vif->p2p && mvm->p2p_device_vif) 2979 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2980 2981 iwl_mvm_update_quotas(mvm, false, NULL); 2982 2983 iwl_mvm_ftm_responder_clear(mvm, vif); 2984 2985 /* 2986 * This is not very nice, but the simplest: 2987 * For older FWs removing the mcast sta before the bcast station may 2988 * cause assert 0x2b00. 2989 * This is fixed in later FW (which will stop beaconing when removing 2990 * bcast station). 2991 * So make the order of removal depend on the TLV 2992 */ 2993 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2994 iwl_mvm_rm_mcast_sta(mvm, vif); 2995 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2996 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2997 iwl_mvm_rm_mcast_sta(mvm, vif); 2998 iwl_mvm_binding_remove_vif(mvm, vif); 2999 3000 iwl_mvm_power_update_mac(mvm); 3001 3002 iwl_mvm_mac_ctxt_remove(mvm, vif); 3003 3004 mutex_unlock(&mvm->mutex); 3005 } 3006 3007 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3008 struct ieee80211_vif *vif, 3009 struct ieee80211_bss_conf *link_conf) 3010 { 3011 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3012 } 3013 3014 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3015 struct ieee80211_vif *vif) 3016 { 3017 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3018 } 3019 3020 static void 3021 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3022 struct ieee80211_vif *vif, 3023 struct ieee80211_bss_conf *bss_conf, 3024 u64 changes) 3025 { 3026 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3027 3028 /* Changes will be applied when the AP/IBSS is started */ 3029 if (!mvmvif->ap_ibss_active) 3030 return; 3031 3032 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3033 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3034 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3035 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3036 3037 /* Need to send a new beacon template to the FW */ 3038 if (changes & BSS_CHANGED_BEACON && 3039 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3040 IWL_WARN(mvm, "Failed updating beacon data\n"); 3041 3042 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3043 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 3044 3045 if (ret) 3046 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3047 ret); 3048 } 3049 3050 } 3051 3052 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3053 struct ieee80211_vif *vif, 3054 struct ieee80211_bss_conf *bss_conf, 3055 u64 changes) 3056 { 3057 struct iwl_mvm_bss_info_changed_ops callbacks = { 3058 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3059 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3060 }; 3061 3062 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3063 changes); 3064 } 3065 3066 void 3067 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3068 struct ieee80211_vif *vif, 3069 struct ieee80211_bss_conf *bss_conf, 3070 struct iwl_mvm_bss_info_changed_ops *callbacks, 3071 u64 changes) 3072 { 3073 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3074 3075 mutex_lock(&mvm->mutex); 3076 3077 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3078 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3079 3080 switch (vif->type) { 3081 case NL80211_IFTYPE_STATION: 3082 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3083 break; 3084 case NL80211_IFTYPE_AP: 3085 case NL80211_IFTYPE_ADHOC: 3086 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3087 changes); 3088 break; 3089 case NL80211_IFTYPE_MONITOR: 3090 if (changes & BSS_CHANGED_MU_GROUPS) 3091 iwl_mvm_update_mu_groups(mvm, vif); 3092 break; 3093 default: 3094 /* shouldn't happen */ 3095 WARN_ON_ONCE(1); 3096 } 3097 3098 if (changes & BSS_CHANGED_TXPOWER) { 3099 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3100 bss_conf->txpower); 3101 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3102 } 3103 3104 mutex_unlock(&mvm->mutex); 3105 } 3106 3107 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3108 struct ieee80211_scan_request *hw_req) 3109 { 3110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3111 int ret; 3112 3113 if (hw_req->req.n_channels == 0 || 3114 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3115 return -EINVAL; 3116 3117 mutex_lock(&mvm->mutex); 3118 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3119 mutex_unlock(&mvm->mutex); 3120 3121 return ret; 3122 } 3123 3124 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3125 struct ieee80211_vif *vif) 3126 { 3127 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3128 3129 mutex_lock(&mvm->mutex); 3130 3131 /* Due to a race condition, it's possible that mac80211 asks 3132 * us to stop a hw_scan when it's already stopped. This can 3133 * happen, for instance, if we stopped the scan ourselves, 3134 * called ieee80211_scan_completed() and the userspace called 3135 * cancel scan scan before ieee80211_scan_work() could run. 3136 * To handle that, simply return if the scan is not running. 3137 */ 3138 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3139 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3140 3141 mutex_unlock(&mvm->mutex); 3142 } 3143 3144 void 3145 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3146 struct ieee80211_sta *sta, u16 tids, 3147 int num_frames, 3148 enum ieee80211_frame_release_type reason, 3149 bool more_data) 3150 { 3151 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3152 3153 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3154 3155 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3156 tids, more_data, false); 3157 } 3158 3159 void 3160 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3161 struct ieee80211_sta *sta, u16 tids, 3162 int num_frames, 3163 enum ieee80211_frame_release_type reason, 3164 bool more_data) 3165 { 3166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3167 3168 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3169 3170 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3171 tids, more_data, true); 3172 } 3173 3174 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3175 enum sta_notify_cmd cmd, 3176 struct ieee80211_sta *sta) 3177 { 3178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3179 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3180 unsigned long txqs = 0, tids = 0; 3181 int tid; 3182 3183 /* 3184 * If we have TVQM then we get too high queue numbers - luckily 3185 * we really shouldn't get here with that because such hardware 3186 * should have firmware supporting buffer station offload. 3187 */ 3188 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3189 return; 3190 3191 spin_lock_bh(&mvmsta->lock); 3192 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3193 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3194 3195 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3196 continue; 3197 3198 __set_bit(tid_data->txq_id, &txqs); 3199 3200 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3201 continue; 3202 3203 __set_bit(tid, &tids); 3204 } 3205 3206 switch (cmd) { 3207 case STA_NOTIFY_SLEEP: 3208 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3209 ieee80211_sta_set_buffered(sta, tid, true); 3210 3211 if (txqs) 3212 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3213 /* 3214 * The fw updates the STA to be asleep. Tx packets on the Tx 3215 * queues to this station will not be transmitted. The fw will 3216 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3217 */ 3218 break; 3219 case STA_NOTIFY_AWAKE: 3220 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3221 break; 3222 3223 if (txqs) 3224 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3225 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3226 break; 3227 default: 3228 break; 3229 } 3230 spin_unlock_bh(&mvmsta->lock); 3231 } 3232 3233 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3234 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3235 { 3236 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3237 } 3238 3239 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3240 { 3241 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3242 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3243 struct ieee80211_sta *sta; 3244 struct iwl_mvm_sta *mvmsta; 3245 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3246 3247 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3248 return; 3249 3250 rcu_read_lock(); 3251 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3252 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3253 rcu_read_unlock(); 3254 return; 3255 } 3256 3257 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3258 3259 if (!mvmsta->vif || 3260 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3261 rcu_read_unlock(); 3262 return; 3263 } 3264 3265 if (mvmsta->sleeping != sleeping) { 3266 mvmsta->sleeping = sleeping; 3267 __iwl_mvm_mac_sta_notify(mvm->hw, 3268 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3269 sta); 3270 ieee80211_sta_ps_transition(sta, sleeping); 3271 } 3272 3273 if (sleeping) { 3274 switch (notif->type) { 3275 case IWL_MVM_PM_EVENT_AWAKE: 3276 case IWL_MVM_PM_EVENT_ASLEEP: 3277 break; 3278 case IWL_MVM_PM_EVENT_UAPSD: 3279 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3280 break; 3281 case IWL_MVM_PM_EVENT_PS_POLL: 3282 ieee80211_sta_pspoll(sta); 3283 break; 3284 default: 3285 break; 3286 } 3287 } 3288 3289 rcu_read_unlock(); 3290 } 3291 3292 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3293 struct ieee80211_vif *vif, 3294 struct ieee80211_sta *sta) 3295 { 3296 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3297 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3298 unsigned int link_id; 3299 3300 /* 3301 * This is called before mac80211 does RCU synchronisation, 3302 * so here we already invalidate our internal RCU-protected 3303 * station pointer. The rest of the code will thus no longer 3304 * be able to find the station this way, and we don't rely 3305 * on further RCU synchronisation after the sta_state() 3306 * callback deleted the station. 3307 * Since there's mvm->mutex here, no need to have RCU lock for 3308 * mvm_sta->link access. 3309 */ 3310 mutex_lock(&mvm->mutex); 3311 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3312 struct iwl_mvm_link_sta *link_sta; 3313 u32 sta_id; 3314 3315 if (!mvm_sta->link[link_id]) 3316 continue; 3317 3318 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3319 lockdep_is_held(&mvm->mutex)); 3320 sta_id = link_sta->sta_id; 3321 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3322 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3323 ERR_PTR(-ENOENT)); 3324 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3325 } 3326 } 3327 mutex_unlock(&mvm->mutex); 3328 } 3329 3330 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3331 const u8 *bssid) 3332 { 3333 int i; 3334 3335 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3336 struct iwl_mvm_tcm_mac *mdata; 3337 3338 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3339 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3340 mdata->opened_rx_ba_sessions = false; 3341 } 3342 3343 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3344 return; 3345 3346 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3347 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3348 return; 3349 } 3350 3351 if (!vif->p2p && 3352 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3353 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3354 return; 3355 } 3356 3357 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3358 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3359 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3360 return; 3361 } 3362 } 3363 3364 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3365 } 3366 3367 static void 3368 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3369 struct ieee80211_vif *vif, u8 *peer_addr, 3370 enum nl80211_tdls_operation action) 3371 { 3372 struct iwl_fw_dbg_trigger_tlv *trig; 3373 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3374 3375 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3376 FW_DBG_TRIGGER_TDLS); 3377 if (!trig) 3378 return; 3379 3380 tdls_trig = (void *)trig->data; 3381 3382 if (!(tdls_trig->action_bitmap & BIT(action))) 3383 return; 3384 3385 if (tdls_trig->peer_mode && 3386 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3387 return; 3388 3389 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3390 "TDLS event occurred, peer %pM, action %d", 3391 peer_addr, action); 3392 } 3393 3394 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3395 bool tolerated; 3396 }; 3397 3398 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3399 struct cfg80211_bss *bss, 3400 void *_data) 3401 { 3402 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3403 const struct cfg80211_bss_ies *ies; 3404 const struct element *elem; 3405 3406 rcu_read_lock(); 3407 ies = rcu_dereference(bss->ies); 3408 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3409 ies->len); 3410 3411 if (!elem || elem->datalen < 10 || 3412 !(elem->data[10] & 3413 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3414 data->tolerated = false; 3415 } 3416 rcu_read_unlock(); 3417 } 3418 3419 static void 3420 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3421 struct ieee80211_vif *vif, 3422 unsigned int link_id, 3423 struct ieee80211_bss_conf *link_conf) 3424 { 3425 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3426 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3427 .tolerated = true, 3428 }; 3429 3430 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3431 !mvmvif->link[link_id])) 3432 return; 3433 3434 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3435 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3436 return; 3437 } 3438 3439 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3440 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3441 &iter_data); 3442 3443 /* 3444 * If there is at least one AP on radar channel that cannot 3445 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3446 */ 3447 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3448 } 3449 3450 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3451 struct ieee80211_vif *vif) 3452 { 3453 struct ieee80211_supported_band *sband; 3454 const struct ieee80211_sta_he_cap *he_cap; 3455 3456 if (vif->type != NL80211_IFTYPE_STATION) 3457 return; 3458 3459 if (!mvm->cca_40mhz_workaround) 3460 return; 3461 3462 /* decrement and check that we reached zero */ 3463 mvm->cca_40mhz_workaround--; 3464 if (mvm->cca_40mhz_workaround) 3465 return; 3466 3467 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3468 3469 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3470 3471 he_cap = ieee80211_get_he_iftype_cap(sband, 3472 ieee80211_vif_type_p2p(vif)); 3473 3474 if (he_cap) { 3475 /* we know that ours is writable */ 3476 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3477 3478 he->he_cap_elem.phy_cap_info[0] |= 3479 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3480 } 3481 } 3482 3483 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3484 struct ieee80211_vif *vif, 3485 struct iwl_mvm_sta *mvm_sta) 3486 { 3487 #if IS_ENABLED(CONFIG_IWLMEI) 3488 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3489 struct iwl_mei_conn_info conn_info = { 3490 .ssid_len = vif->cfg.ssid_len, 3491 }; 3492 3493 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3494 return; 3495 3496 if (!mvm->mei_registered) 3497 return; 3498 3499 /* FIXME: MEI needs to be updated for MLO */ 3500 if (!vif->bss_conf.chandef.chan) 3501 return; 3502 3503 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3504 3505 switch (mvm_sta->pairwise_cipher) { 3506 case WLAN_CIPHER_SUITE_TKIP: 3507 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3508 break; 3509 case WLAN_CIPHER_SUITE_CCMP: 3510 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3511 break; 3512 case WLAN_CIPHER_SUITE_GCMP: 3513 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3514 break; 3515 case WLAN_CIPHER_SUITE_GCMP_256: 3516 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3517 break; 3518 case 0: 3519 /* open profile */ 3520 break; 3521 default: 3522 /* cipher not supported, don't send anything to iwlmei */ 3523 return; 3524 } 3525 3526 switch (mvmvif->rekey_data.akm) { 3527 case WLAN_AKM_SUITE_SAE & 0xff: 3528 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3529 break; 3530 case WLAN_AKM_SUITE_PSK & 0xff: 3531 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3532 break; 3533 case WLAN_AKM_SUITE_8021X & 0xff: 3534 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3535 break; 3536 case 0: 3537 /* open profile */ 3538 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3539 break; 3540 default: 3541 /* auth method / AKM not supported */ 3542 /* TODO: All the FT vesions of these? */ 3543 return; 3544 } 3545 3546 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3547 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3548 3549 /* TODO: add support for collocated AP data */ 3550 iwl_mei_host_associated(&conn_info, NULL); 3551 #endif 3552 } 3553 3554 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3555 struct ieee80211_vif *vif, 3556 bool force_assoc_off) 3557 { 3558 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3559 } 3560 3561 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3562 struct ieee80211_vif *vif, 3563 struct ieee80211_sta *sta, 3564 enum ieee80211_sta_state old_state, 3565 enum ieee80211_sta_state new_state) 3566 { 3567 struct iwl_mvm_sta_state_ops callbacks = { 3568 .add_sta = iwl_mvm_add_sta, 3569 .update_sta = iwl_mvm_update_sta, 3570 .rm_sta = iwl_mvm_rm_sta, 3571 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3572 }; 3573 3574 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3575 &callbacks); 3576 } 3577 3578 /* FIXME: temporary making two assumptions in all sta handling functions: 3579 * (1) when setting sta state, the link exists and protected 3580 * (2) if a link is valid in sta then it's valid in vif (can 3581 * use same index in the link array) 3582 */ 3583 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3584 struct ieee80211_vif *vif, 3585 struct ieee80211_sta *sta) 3586 { 3587 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3588 unsigned int link_id; 3589 3590 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3591 struct ieee80211_bss_conf *conf = 3592 link_conf_dereference_check(vif, link_id); 3593 struct ieee80211_link_sta *link_sta = 3594 link_sta_dereference_check(sta, link_id); 3595 3596 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3597 continue; 3598 3599 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3600 mvmvif->link[link_id]->phy_ctxt->channel->band); 3601 } 3602 } 3603 3604 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3605 3606 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3607 struct ieee80211_vif *vif, 3608 struct ieee80211_sta *sta) 3609 { 3610 unsigned int i; 3611 3612 /* Beacon interval check - firmware will crash if the beacon 3613 * interval is less than 16. We can't avoid connecting at all, 3614 * so refuse the station state change, this will cause mac80211 3615 * to abandon attempts to connect to this AP, and eventually 3616 * wpa_s will blocklist the AP... 3617 */ 3618 3619 for_each_set_bit(i, (unsigned long *)&sta->valid_links, 3620 IEEE80211_MLD_MAX_NUM_LINKS) { 3621 struct ieee80211_link_sta *link_sta = 3622 link_sta_dereference_protected(sta, i); 3623 struct ieee80211_bss_conf *link_conf = 3624 link_conf_dereference_protected(vif, i); 3625 3626 if (!link_conf || !link_sta) 3627 continue; 3628 3629 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3630 IWL_ERR(mvm, 3631 "Beacon interval %d for AP %pM is too small\n", 3632 link_conf->beacon_int, link_sta->addr); 3633 return false; 3634 } 3635 3636 link_conf->he_support = link_sta->he_cap.has_he; 3637 } 3638 3639 return true; 3640 } 3641 3642 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3643 struct ieee80211_vif *vif, 3644 struct ieee80211_sta *sta, 3645 bool is_sta) 3646 { 3647 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3648 unsigned int i; 3649 3650 for_each_set_bit(i, (unsigned long *)&sta->valid_links, 3651 IEEE80211_MLD_MAX_NUM_LINKS) { 3652 struct ieee80211_link_sta *link_sta = 3653 link_sta_dereference_protected(sta, i); 3654 struct ieee80211_bss_conf *link_conf = 3655 link_conf_dereference_protected(vif, i); 3656 3657 if (!link_conf || !link_sta || !mvmvif->link[i]) 3658 continue; 3659 3660 link_conf->he_support = link_sta->he_cap.has_he; 3661 3662 if (is_sta) { 3663 mvmvif->link[i]->he_ru_2mhz_block = false; 3664 if (link_sta->he_cap.has_he) 3665 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, i, 3666 link_conf); 3667 } 3668 } 3669 } 3670 3671 static int 3672 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3673 struct ieee80211_vif *vif, 3674 struct ieee80211_sta *sta, 3675 struct iwl_mvm_sta_state_ops *callbacks) 3676 { 3677 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3678 unsigned int i; 3679 int ret; 3680 3681 lockdep_assert_held(&mvm->mutex); 3682 3683 if (vif->type == NL80211_IFTYPE_STATION && 3684 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3685 return -EINVAL; 3686 3687 if (sta->tdls && 3688 (vif->p2p || 3689 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3690 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3691 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3692 return -EBUSY; 3693 } 3694 3695 ret = callbacks->add_sta(mvm, vif, sta); 3696 if (sta->tdls && ret == 0) { 3697 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3698 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3699 NL80211_TDLS_SETUP); 3700 } 3701 3702 for (i = 0; i < ARRAY_SIZE(sta->link); i++) { 3703 struct ieee80211_link_sta *link_sta; 3704 3705 link_sta = link_sta_dereference_protected(sta, i); 3706 if (!link_sta) 3707 continue; 3708 3709 link_sta->agg.max_rc_amsdu_len = 1; 3710 } 3711 ieee80211_sta_recalc_aggregates(sta); 3712 3713 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3714 mvmvif->ap_sta = sta; 3715 3716 return 0; 3717 } 3718 3719 static int 3720 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3721 struct iwl_mvm *mvm, 3722 struct ieee80211_vif *vif, 3723 struct ieee80211_sta *sta, 3724 struct iwl_mvm_sta_state_ops *callbacks) 3725 { 3726 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3727 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3728 unsigned int i; 3729 3730 lockdep_assert_held(&mvm->mutex); 3731 3732 if (vif->type == NL80211_IFTYPE_AP) { 3733 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3734 mvmvif->ap_assoc_sta_count++; 3735 callbacks->mac_ctxt_changed(mvm, vif, false); 3736 3737 /* since the below is not for MLD API, it's ok to use 3738 * the default bss_conf 3739 */ 3740 if (!mvm->mld_api_is_used && 3741 ((vif->bss_conf.he_support && 3742 !iwlwifi_mod_params.disable_11ax) || 3743 (vif->bss_conf.eht_support && 3744 !iwlwifi_mod_params.disable_11be))) 3745 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3746 } else if (vif->type == NL80211_IFTYPE_STATION) { 3747 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3748 3749 callbacks->mac_ctxt_changed(mvm, vif, false); 3750 3751 if (!mvm->mld_api_is_used) 3752 goto out; 3753 3754 for_each_set_bit(i, (unsigned long *)&sta->valid_links, 3755 IEEE80211_MLD_MAX_NUM_LINKS) { 3756 struct ieee80211_bss_conf *link_conf = 3757 link_conf_dereference_protected(vif, i); 3758 3759 if (WARN_ON(!link_conf)) 3760 return -EINVAL; 3761 if (!mvmvif->link[i]) 3762 continue; 3763 3764 iwl_mvm_link_changed(mvm, vif, link_conf, 3765 LINK_CONTEXT_MODIFY_ALL & 3766 ~LINK_CONTEXT_MODIFY_ACTIVE, 3767 true); 3768 } 3769 } 3770 3771 out: 3772 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3773 3774 return callbacks->update_sta(mvm, vif, sta); 3775 } 3776 3777 static int 3778 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3779 struct ieee80211_vif *vif, 3780 struct ieee80211_sta *sta, 3781 struct iwl_mvm_sta_state_ops *callbacks) 3782 { 3783 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3784 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3785 3786 lockdep_assert_held(&mvm->mutex); 3787 3788 /* we don't support TDLS during DCM */ 3789 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3790 iwl_mvm_teardown_tdls_peers(mvm); 3791 3792 if (sta->tdls) { 3793 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3794 NL80211_TDLS_ENABLE_LINK); 3795 } else { 3796 /* enable beacon filtering */ 3797 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3798 3799 mvmvif->authorized = 1; 3800 3801 callbacks->mac_ctxt_changed(mvm, vif, false); 3802 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3803 } 3804 3805 mvm_sta->authorized = true; 3806 3807 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3808 3809 return 0; 3810 } 3811 3812 static int 3813 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3814 struct ieee80211_vif *vif, 3815 struct ieee80211_sta *sta, 3816 struct iwl_mvm_sta_state_ops *callbacks) 3817 { 3818 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3819 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3820 int ret; 3821 3822 lockdep_assert_held(&mvm->mutex); 3823 3824 mvmsta->authorized = false; 3825 3826 /* once we move into assoc state, need to update rate scale to 3827 * disable using wide bandwidth 3828 */ 3829 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3830 3831 if (!sta->tdls) { 3832 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3833 * yet to avoid sending high prio again for a little 3834 * time. 3835 */ 3836 mvmvif->authorized = 0; 3837 3838 /* disable beacon filtering */ 3839 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3840 WARN_ON(ret && 3841 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3842 &mvm->status)); 3843 } 3844 3845 return 0; 3846 } 3847 3848 /* Common part for MLD and non-MLD modes */ 3849 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3850 struct ieee80211_vif *vif, 3851 struct ieee80211_sta *sta, 3852 enum ieee80211_sta_state old_state, 3853 enum ieee80211_sta_state new_state, 3854 struct iwl_mvm_sta_state_ops *callbacks) 3855 { 3856 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3857 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3858 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3859 unsigned int link_id; 3860 int ret; 3861 3862 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3863 sta->addr, old_state, new_state); 3864 3865 /* 3866 * If we are in a STA removal flow and in DQA mode: 3867 * 3868 * This is after the sync_rcu part, so the queues have already been 3869 * flushed. No more TXs on their way in mac80211's path, and no more in 3870 * the queues. 3871 * Also, we won't be getting any new TX frames for this station. 3872 * What we might have are deferred TX frames that need to be taken care 3873 * of. 3874 * 3875 * Drop any still-queued deferred-frame before removing the STA, and 3876 * make sure the worker is no longer handling frames for this STA. 3877 */ 3878 if (old_state == IEEE80211_STA_NONE && 3879 new_state == IEEE80211_STA_NOTEXIST) { 3880 flush_work(&mvm->add_stream_wk); 3881 3882 /* 3883 * No need to make sure deferred TX indication is off since the 3884 * worker will already remove it if it was on 3885 */ 3886 3887 /* 3888 * Additionally, reset the 40 MHz capability if we disconnected 3889 * from the AP now. 3890 */ 3891 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3892 } 3893 3894 mutex_lock(&mvm->mutex); 3895 3896 /* this would be a mac80211 bug ... but don't crash */ 3897 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3898 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3899 mutex_unlock(&mvm->mutex); 3900 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3901 &mvm->status) ? 0 : -EINVAL; 3902 } 3903 } 3904 3905 /* track whether or not the station is associated */ 3906 mvm_sta->sta_state = new_state; 3907 3908 if (old_state == IEEE80211_STA_NOTEXIST && 3909 new_state == IEEE80211_STA_NONE) { 3910 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3911 callbacks); 3912 if (ret < 0) 3913 goto out_unlock; 3914 } else if (old_state == IEEE80211_STA_NONE && 3915 new_state == IEEE80211_STA_AUTH) { 3916 /* 3917 * EBS may be disabled due to previous failures reported by FW. 3918 * Reset EBS status here assuming environment has been changed. 3919 */ 3920 mvm->last_ebs_successful = true; 3921 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3922 ret = 0; 3923 } else if (old_state == IEEE80211_STA_AUTH && 3924 new_state == IEEE80211_STA_ASSOC) { 3925 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3926 callbacks); 3927 } else if (old_state == IEEE80211_STA_ASSOC && 3928 new_state == IEEE80211_STA_AUTHORIZED) { 3929 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3930 callbacks); 3931 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3932 new_state == IEEE80211_STA_ASSOC) { 3933 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3934 callbacks); 3935 } else if (old_state == IEEE80211_STA_ASSOC && 3936 new_state == IEEE80211_STA_AUTH) { 3937 if (vif->type == NL80211_IFTYPE_AP) { 3938 mvmvif->ap_assoc_sta_count--; 3939 callbacks->mac_ctxt_changed(mvm, vif, false); 3940 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3941 iwl_mvm_stop_session_protection(mvm, vif); 3942 ret = 0; 3943 } else if (old_state == IEEE80211_STA_AUTH && 3944 new_state == IEEE80211_STA_NONE) { 3945 ret = 0; 3946 } else if (old_state == IEEE80211_STA_NONE && 3947 new_state == IEEE80211_STA_NOTEXIST) { 3948 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3949 iwl_mvm_stop_session_protection(mvm, vif); 3950 mvmvif->ap_sta = NULL; 3951 } 3952 ret = callbacks->rm_sta(mvm, vif, sta); 3953 if (sta->tdls) { 3954 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3955 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3956 NL80211_TDLS_DISABLE_LINK); 3957 } 3958 3959 if (unlikely(ret && 3960 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3961 &mvm->status))) 3962 ret = 0; 3963 } else { 3964 ret = -EIO; 3965 } 3966 out_unlock: 3967 mutex_unlock(&mvm->mutex); 3968 3969 if (sta->tdls && ret == 0) { 3970 if (old_state == IEEE80211_STA_NOTEXIST && 3971 new_state == IEEE80211_STA_NONE) 3972 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3973 else if (old_state == IEEE80211_STA_NONE && 3974 new_state == IEEE80211_STA_NOTEXIST) 3975 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3976 } 3977 3978 return ret; 3979 } 3980 3981 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3982 { 3983 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3984 3985 mvm->rts_threshold = value; 3986 3987 return 0; 3988 } 3989 3990 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3991 struct ieee80211_sta *sta, u32 changed) 3992 { 3993 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3994 3995 if (changed & (IEEE80211_RC_BW_CHANGED | 3996 IEEE80211_RC_SUPP_RATES_CHANGED | 3997 IEEE80211_RC_NSS_CHANGED)) 3998 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3999 4000 if (vif->type == NL80211_IFTYPE_STATION && 4001 changed & IEEE80211_RC_NSS_CHANGED) 4002 iwl_mvm_sf_update(mvm, vif, false); 4003 } 4004 4005 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4006 struct ieee80211_vif *vif, 4007 unsigned int link_id, u16 ac, 4008 const struct ieee80211_tx_queue_params *params) 4009 { 4010 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4011 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4012 4013 mvmvif->deflink.queue_params[ac] = *params; 4014 4015 /* 4016 * No need to update right away, we'll get BSS_CHANGED_QOS 4017 * The exception is P2P_DEVICE interface which needs immediate update. 4018 */ 4019 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4020 int ret; 4021 4022 mutex_lock(&mvm->mutex); 4023 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4024 mutex_unlock(&mvm->mutex); 4025 return ret; 4026 } 4027 return 0; 4028 } 4029 4030 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4031 struct ieee80211_vif *vif, 4032 struct ieee80211_prep_tx_info *info) 4033 { 4034 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4035 4036 mutex_lock(&mvm->mutex); 4037 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4038 mutex_unlock(&mvm->mutex); 4039 } 4040 4041 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4042 struct ieee80211_vif *vif, 4043 struct ieee80211_prep_tx_info *info) 4044 { 4045 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4046 4047 /* for successful cases (auth/assoc), don't cancel session protection */ 4048 if (info->success) 4049 return; 4050 4051 mutex_lock(&mvm->mutex); 4052 iwl_mvm_stop_session_protection(mvm, vif); 4053 mutex_unlock(&mvm->mutex); 4054 } 4055 4056 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4057 struct ieee80211_vif *vif, 4058 struct cfg80211_sched_scan_request *req, 4059 struct ieee80211_scan_ies *ies) 4060 { 4061 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4062 4063 int ret; 4064 4065 mutex_lock(&mvm->mutex); 4066 4067 if (!vif->cfg.idle) { 4068 ret = -EBUSY; 4069 goto out; 4070 } 4071 4072 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4073 4074 out: 4075 mutex_unlock(&mvm->mutex); 4076 return ret; 4077 } 4078 4079 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4080 struct ieee80211_vif *vif) 4081 { 4082 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4083 int ret; 4084 4085 mutex_lock(&mvm->mutex); 4086 4087 /* Due to a race condition, it's possible that mac80211 asks 4088 * us to stop a sched_scan when it's already stopped. This 4089 * can happen, for instance, if we stopped the scan ourselves, 4090 * called ieee80211_sched_scan_stopped() and the userspace called 4091 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4092 * could run. To handle this, simply return if the scan is 4093 * not running. 4094 */ 4095 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4096 mutex_unlock(&mvm->mutex); 4097 return 0; 4098 } 4099 4100 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4101 mutex_unlock(&mvm->mutex); 4102 iwl_mvm_wait_for_async_handlers(mvm); 4103 4104 return ret; 4105 } 4106 4107 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4108 enum set_key_cmd cmd, 4109 struct ieee80211_vif *vif, 4110 struct ieee80211_sta *sta, 4111 struct ieee80211_key_conf *key) 4112 { 4113 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4115 struct iwl_mvm_sta *mvmsta = NULL; 4116 struct iwl_mvm_key_pn *ptk_pn = NULL; 4117 int keyidx = key->keyidx; 4118 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4119 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4120 int ret, i; 4121 u8 key_offset; 4122 4123 if (sta) 4124 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4125 4126 switch (key->cipher) { 4127 case WLAN_CIPHER_SUITE_TKIP: 4128 if (!mvm->trans->trans_cfg->gen2) { 4129 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4130 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4131 } else if (vif->type == NL80211_IFTYPE_STATION) { 4132 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4133 } else { 4134 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4135 return -EOPNOTSUPP; 4136 } 4137 break; 4138 case WLAN_CIPHER_SUITE_CCMP: 4139 case WLAN_CIPHER_SUITE_GCMP: 4140 case WLAN_CIPHER_SUITE_GCMP_256: 4141 if (!iwl_mvm_has_new_tx_api(mvm)) 4142 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4143 break; 4144 case WLAN_CIPHER_SUITE_AES_CMAC: 4145 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4146 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4147 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4148 break; 4149 case WLAN_CIPHER_SUITE_WEP40: 4150 case WLAN_CIPHER_SUITE_WEP104: 4151 if (vif->type == NL80211_IFTYPE_STATION) 4152 break; 4153 if (iwl_mvm_has_new_tx_api(mvm)) 4154 return -EOPNOTSUPP; 4155 /* support HW crypto on TX */ 4156 return 0; 4157 default: 4158 return -EOPNOTSUPP; 4159 } 4160 4161 switch (cmd) { 4162 case SET_KEY: 4163 if (vif->type == NL80211_IFTYPE_STATION && 4164 (keyidx == 6 || keyidx == 7)) 4165 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4166 key); 4167 4168 if ((vif->type == NL80211_IFTYPE_ADHOC || 4169 vif->type == NL80211_IFTYPE_AP) && !sta) { 4170 /* 4171 * GTK on AP interface is a TX-only key, return 0; 4172 * on IBSS they're per-station and because we're lazy 4173 * we don't support them for RX, so do the same. 4174 * CMAC/GMAC in AP/IBSS modes must be done in software. 4175 * 4176 * Except, of course, beacon protection - it must be 4177 * offloaded since we just set a beacon template. 4178 */ 4179 if (keyidx < 6 && 4180 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4181 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4182 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4183 ret = -EOPNOTSUPP; 4184 break; 4185 } 4186 4187 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4188 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4189 !iwl_mvm_has_new_tx_api(mvm)) { 4190 key->hw_key_idx = STA_KEY_IDX_INVALID; 4191 ret = 0; 4192 break; 4193 } 4194 4195 if (!mvmvif->ap_ibss_active) { 4196 for (i = 0; 4197 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4198 i++) { 4199 if (!mvmvif->ap_early_keys[i]) { 4200 mvmvif->ap_early_keys[i] = key; 4201 break; 4202 } 4203 } 4204 4205 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4206 ret = -ENOSPC; 4207 else 4208 ret = 0; 4209 4210 break; 4211 } 4212 } 4213 4214 /* During FW restart, in order to restore the state as it was, 4215 * don't try to reprogram keys we previously failed for. 4216 */ 4217 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4218 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4219 IWL_DEBUG_MAC80211(mvm, 4220 "skip invalid idx key programming during restart\n"); 4221 ret = 0; 4222 break; 4223 } 4224 4225 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4226 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4227 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4228 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4229 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4230 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4231 struct ieee80211_key_seq seq; 4232 int tid, q; 4233 4234 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4235 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4236 mvm->trans->num_rx_queues), 4237 GFP_KERNEL); 4238 if (!ptk_pn) { 4239 ret = -ENOMEM; 4240 break; 4241 } 4242 4243 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4244 ieee80211_get_key_rx_seq(key, tid, &seq); 4245 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4246 memcpy(ptk_pn->q[q].pn[tid], 4247 seq.ccmp.pn, 4248 IEEE80211_CCMP_PN_LEN); 4249 } 4250 4251 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4252 } 4253 4254 /* in HW restart reuse the index, otherwise request a new one */ 4255 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4256 key_offset = key->hw_key_idx; 4257 else 4258 key_offset = STA_KEY_IDX_INVALID; 4259 4260 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4261 mvmsta->pairwise_cipher = key->cipher; 4262 4263 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4264 sta ? sta->addr : NULL, key->keyidx); 4265 4266 if (sec_key_ver) 4267 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4268 else 4269 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4270 4271 if (ret) { 4272 IWL_WARN(mvm, "set key failed\n"); 4273 key->hw_key_idx = STA_KEY_IDX_INVALID; 4274 if (ptk_pn) { 4275 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4276 kfree(ptk_pn); 4277 } 4278 /* 4279 * can't add key for RX, but we don't need it 4280 * in the device for TX so still return 0, 4281 * unless we have new TX API where we cannot 4282 * put key material into the TX_CMD 4283 */ 4284 if (iwl_mvm_has_new_tx_api(mvm)) 4285 ret = -EOPNOTSUPP; 4286 else 4287 ret = 0; 4288 } 4289 4290 break; 4291 case DISABLE_KEY: 4292 if (vif->type == NL80211_IFTYPE_STATION && 4293 (keyidx == 6 || keyidx == 7)) 4294 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4295 NULL); 4296 4297 ret = -ENOENT; 4298 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4299 if (mvmvif->ap_early_keys[i] == key) { 4300 mvmvif->ap_early_keys[i] = NULL; 4301 ret = 0; 4302 } 4303 } 4304 4305 /* found in pending list - don't do anything else */ 4306 if (ret == 0) 4307 break; 4308 4309 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4310 ret = 0; 4311 break; 4312 } 4313 4314 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4315 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4316 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4317 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4318 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4319 ptk_pn = rcu_dereference_protected( 4320 mvmsta->ptk_pn[keyidx], 4321 lockdep_is_held(&mvm->mutex)); 4322 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4323 if (ptk_pn) 4324 kfree_rcu(ptk_pn, rcu_head); 4325 } 4326 4327 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4328 if (sec_key_ver) 4329 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4330 else 4331 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4332 break; 4333 default: 4334 ret = -EINVAL; 4335 } 4336 4337 return ret; 4338 } 4339 4340 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4341 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4342 struct ieee80211_key_conf *key) 4343 { 4344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4345 int ret; 4346 4347 mutex_lock(&mvm->mutex); 4348 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4349 mutex_unlock(&mvm->mutex); 4350 4351 return ret; 4352 } 4353 4354 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4355 struct ieee80211_vif *vif, 4356 struct ieee80211_key_conf *keyconf, 4357 struct ieee80211_sta *sta, 4358 u32 iv32, u16 *phase1key) 4359 { 4360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4361 4362 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4363 return; 4364 4365 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4366 } 4367 4368 4369 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4370 struct iwl_rx_packet *pkt, void *data) 4371 { 4372 struct iwl_mvm *mvm = 4373 container_of(notif_wait, struct iwl_mvm, notif_wait); 4374 struct iwl_hs20_roc_res *resp; 4375 int resp_len = iwl_rx_packet_payload_len(pkt); 4376 struct iwl_mvm_time_event_data *te_data = data; 4377 4378 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4379 return true; 4380 4381 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4382 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4383 return true; 4384 } 4385 4386 resp = (void *)pkt->data; 4387 4388 IWL_DEBUG_TE(mvm, 4389 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4390 resp->status, resp->event_unique_id); 4391 4392 te_data->uid = le32_to_cpu(resp->event_unique_id); 4393 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4394 te_data->uid); 4395 4396 spin_lock_bh(&mvm->time_event_lock); 4397 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4398 spin_unlock_bh(&mvm->time_event_lock); 4399 4400 return true; 4401 } 4402 4403 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4404 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4405 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4406 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4407 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4408 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4409 struct ieee80211_channel *channel, 4410 struct ieee80211_vif *vif, 4411 int duration) 4412 { 4413 int res; 4414 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4415 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4416 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4417 struct iwl_notification_wait wait_time_event; 4418 u32 dtim_interval = vif->bss_conf.dtim_period * 4419 vif->bss_conf.beacon_int; 4420 u32 req_dur, delay; 4421 struct iwl_hs20_roc_req aux_roc_req = { 4422 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4423 .id_and_color = 4424 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4425 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4426 }; 4427 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4428 &aux_roc_req.channel_info); 4429 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4430 4431 /* Set the channel info data */ 4432 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4433 iwl_mvm_phy_band_from_nl80211(channel->band), 4434 IWL_PHY_CHANNEL_MODE20, 4435 0); 4436 4437 /* Set the time and duration */ 4438 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4439 4440 delay = AUX_ROC_MIN_DELAY; 4441 req_dur = MSEC_TO_TU(duration); 4442 4443 /* 4444 * If we are associated we want the delay time to be at least one 4445 * dtim interval so that the FW can wait until after the DTIM and 4446 * then start the time event, this will potentially allow us to 4447 * remain off-channel for the max duration. 4448 * Since we want to use almost a whole dtim interval we would also 4449 * like the delay to be for 2-3 dtim intervals, in case there are 4450 * other time events with higher priority. 4451 */ 4452 if (vif->cfg.assoc) { 4453 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4454 /* We cannot remain off-channel longer than the DTIM interval */ 4455 if (dtim_interval <= req_dur) { 4456 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4457 if (req_dur <= AUX_ROC_MIN_DURATION) 4458 req_dur = dtim_interval - 4459 AUX_ROC_MIN_SAFETY_BUFFER; 4460 } 4461 } 4462 4463 tail->duration = cpu_to_le32(req_dur); 4464 tail->apply_time_max_delay = cpu_to_le32(delay); 4465 4466 IWL_DEBUG_TE(mvm, 4467 "ROC: Requesting to remain on channel %u for %ums\n", 4468 channel->hw_value, req_dur); 4469 IWL_DEBUG_TE(mvm, 4470 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4471 duration, delay, dtim_interval); 4472 4473 /* Set the node address */ 4474 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4475 4476 lockdep_assert_held(&mvm->mutex); 4477 4478 spin_lock_bh(&mvm->time_event_lock); 4479 4480 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4481 spin_unlock_bh(&mvm->time_event_lock); 4482 return -EIO; 4483 } 4484 4485 te_data->vif = vif; 4486 te_data->duration = duration; 4487 te_data->id = HOT_SPOT_CMD; 4488 4489 spin_unlock_bh(&mvm->time_event_lock); 4490 4491 /* 4492 * Use a notification wait, which really just processes the 4493 * command response and doesn't wait for anything, in order 4494 * to be able to process the response and get the UID inside 4495 * the RX path. Using CMD_WANT_SKB doesn't work because it 4496 * stores the buffer and then wakes up this thread, by which 4497 * time another notification (that the time event started) 4498 * might already be processed unsuccessfully. 4499 */ 4500 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4501 time_event_response, 4502 ARRAY_SIZE(time_event_response), 4503 iwl_mvm_rx_aux_roc, te_data); 4504 4505 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4506 &aux_roc_req); 4507 4508 if (res) { 4509 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4510 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4511 goto out_clear_te; 4512 } 4513 4514 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4515 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4516 /* should never fail */ 4517 WARN_ON_ONCE(res); 4518 4519 if (res) { 4520 out_clear_te: 4521 spin_lock_bh(&mvm->time_event_lock); 4522 iwl_mvm_te_clear_data(mvm, te_data); 4523 spin_unlock_bh(&mvm->time_event_lock); 4524 } 4525 4526 return res; 4527 } 4528 4529 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4530 { 4531 int ret = 0; 4532 4533 lockdep_assert_held(&mvm->mutex); 4534 4535 if (!fw_has_capa(&mvm->fw->ucode_capa, 4536 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4537 IWL_ERR(mvm, "hotspot not supported\n"); 4538 return -EINVAL; 4539 } 4540 4541 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) { 4542 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4543 WARN(ret, "Failed to allocate aux station"); 4544 } 4545 4546 return ret; 4547 } 4548 4549 static int iwl_mvm_roc_switch_binding(struct iwl_mvm *mvm, 4550 struct ieee80211_vif *vif, 4551 struct iwl_mvm_phy_ctxt *new_phy_ctxt) 4552 { 4553 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4554 int ret = 0; 4555 4556 lockdep_assert_held(&mvm->mutex); 4557 4558 /* Unbind the P2P_DEVICE from the current PHY context, 4559 * and if the PHY context is not used remove it. 4560 */ 4561 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4562 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4563 return ret; 4564 4565 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4566 4567 /* Bind the P2P_DEVICE to the current PHY Context */ 4568 mvmvif->deflink.phy_ctxt = new_phy_ctxt; 4569 4570 ret = iwl_mvm_binding_add_vif(mvm, vif); 4571 WARN(ret, "Failed binding P2P_DEVICE\n"); 4572 return ret; 4573 } 4574 4575 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4576 struct ieee80211_vif *vif, 4577 struct ieee80211_channel *channel, 4578 int duration, 4579 enum ieee80211_roc_type type) 4580 { 4581 struct iwl_mvm_roc_ops ops = { 4582 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4583 .switch_phy_ctxt = iwl_mvm_roc_switch_binding, 4584 }; 4585 4586 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4587 } 4588 4589 /* Execute the common part for MLD and non-MLD modes */ 4590 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4591 struct ieee80211_channel *channel, int duration, 4592 enum ieee80211_roc_type type, 4593 struct iwl_mvm_roc_ops *ops) 4594 { 4595 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4596 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4597 struct cfg80211_chan_def chandef; 4598 struct iwl_mvm_phy_ctxt *phy_ctxt; 4599 bool band_change_removal; 4600 int ret, i; 4601 u32 lmac_id; 4602 4603 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4604 duration, type); 4605 4606 /* 4607 * Flush the done work, just in case it's still pending, so that 4608 * the work it does can complete and we can accept new frames. 4609 */ 4610 flush_work(&mvm->roc_done_wk); 4611 4612 mutex_lock(&mvm->mutex); 4613 4614 switch (vif->type) { 4615 case NL80211_IFTYPE_STATION: 4616 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, channel->band); 4617 4618 /* Use aux roc framework (HS20) */ 4619 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4620 if (!ret) 4621 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4622 vif, duration); 4623 goto out_unlock; 4624 case NL80211_IFTYPE_P2P_DEVICE: 4625 /* handle below */ 4626 break; 4627 default: 4628 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4629 ret = -EINVAL; 4630 goto out_unlock; 4631 } 4632 4633 for (i = 0; i < NUM_PHY_CTX; i++) { 4634 phy_ctxt = &mvm->phy_ctxts[i]; 4635 if (phy_ctxt->ref == 0 || mvmvif->deflink.phy_ctxt == phy_ctxt) 4636 continue; 4637 4638 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4639 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4640 if (ret) 4641 goto out_unlock; 4642 4643 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4644 goto schedule_time_event; 4645 } 4646 } 4647 4648 /* Need to update the PHY context only if the ROC channel changed */ 4649 if (channel == mvmvif->deflink.phy_ctxt->channel) 4650 goto schedule_time_event; 4651 4652 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4653 4654 /* 4655 * Check if the remain-on-channel is on a different band and that 4656 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4657 * so, we'll need to release and then re-configure here, since we 4658 * must not remove a PHY context that's part of a binding. 4659 */ 4660 band_change_removal = 4661 fw_has_capa(&mvm->fw->ucode_capa, 4662 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4663 mvmvif->deflink.phy_ctxt->channel->band != chandef.chan->band; 4664 4665 if (mvmvif->deflink.phy_ctxt->ref == 1 && !band_change_removal) { 4666 /* 4667 * Change the PHY context configuration as it is currently 4668 * referenced only by the P2P Device MAC (and we can modify it) 4669 */ 4670 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->deflink.phy_ctxt, 4671 &chandef, 1, 1); 4672 if (ret) 4673 goto out_unlock; 4674 } else { 4675 /* 4676 * The PHY context is shared with other MACs (or we're trying to 4677 * switch bands), so remove the P2P Device from the binding, 4678 * allocate an new PHY context and create a new binding. 4679 */ 4680 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4681 if (!phy_ctxt) { 4682 ret = -ENOSPC; 4683 goto out_unlock; 4684 } 4685 4686 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4687 1, 1); 4688 if (ret) { 4689 IWL_ERR(mvm, "Failed to change PHY context\n"); 4690 goto out_unlock; 4691 } 4692 4693 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4694 if (ret) 4695 goto out_unlock; 4696 4697 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4698 } 4699 4700 schedule_time_event: 4701 /* Schedule the time events */ 4702 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4703 4704 out_unlock: 4705 mutex_unlock(&mvm->mutex); 4706 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4707 return ret; 4708 } 4709 4710 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4711 struct ieee80211_vif *vif) 4712 { 4713 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4714 4715 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4716 4717 mutex_lock(&mvm->mutex); 4718 iwl_mvm_stop_roc(mvm, vif); 4719 mutex_unlock(&mvm->mutex); 4720 4721 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4722 return 0; 4723 } 4724 4725 struct iwl_mvm_ftm_responder_iter_data { 4726 bool responder; 4727 struct ieee80211_chanctx_conf *ctx; 4728 }; 4729 4730 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4731 struct ieee80211_vif *vif) 4732 { 4733 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4734 4735 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4736 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4737 data->responder = true; 4738 } 4739 4740 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4741 struct ieee80211_chanctx_conf *ctx) 4742 { 4743 struct iwl_mvm_ftm_responder_iter_data data = { 4744 .responder = false, 4745 .ctx = ctx, 4746 }; 4747 4748 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4749 IEEE80211_IFACE_ITER_NORMAL, 4750 iwl_mvm_ftm_responder_chanctx_iter, 4751 &data); 4752 return data.responder; 4753 } 4754 4755 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4756 struct ieee80211_chanctx_conf *ctx) 4757 { 4758 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4759 struct iwl_mvm_phy_ctxt *phy_ctxt; 4760 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4761 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4762 int ret; 4763 4764 lockdep_assert_held(&mvm->mutex); 4765 4766 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4767 4768 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4769 if (!phy_ctxt) { 4770 ret = -ENOSPC; 4771 goto out; 4772 } 4773 4774 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4775 ctx->rx_chains_static, 4776 ctx->rx_chains_dynamic); 4777 if (ret) { 4778 IWL_ERR(mvm, "Failed to add PHY context\n"); 4779 goto out; 4780 } 4781 4782 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4783 *phy_ctxt_id = phy_ctxt->id; 4784 out: 4785 return ret; 4786 } 4787 4788 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4789 struct ieee80211_chanctx_conf *ctx) 4790 { 4791 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4792 int ret; 4793 4794 mutex_lock(&mvm->mutex); 4795 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4796 mutex_unlock(&mvm->mutex); 4797 4798 return ret; 4799 } 4800 4801 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4802 struct ieee80211_chanctx_conf *ctx) 4803 { 4804 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4805 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4806 4807 lockdep_assert_held(&mvm->mutex); 4808 4809 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4810 } 4811 4812 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4813 struct ieee80211_chanctx_conf *ctx) 4814 { 4815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4816 4817 mutex_lock(&mvm->mutex); 4818 __iwl_mvm_remove_chanctx(mvm, ctx); 4819 mutex_unlock(&mvm->mutex); 4820 } 4821 4822 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4823 struct ieee80211_chanctx_conf *ctx, u32 changed) 4824 { 4825 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4826 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4827 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4828 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4829 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4830 4831 if (WARN_ONCE((phy_ctxt->ref > 1) && 4832 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4833 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4834 IEEE80211_CHANCTX_CHANGE_RADAR | 4835 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4836 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4837 phy_ctxt->ref, changed)) 4838 return; 4839 4840 mutex_lock(&mvm->mutex); 4841 4842 /* we are only changing the min_width, may be a noop */ 4843 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4844 if (phy_ctxt->width == def->width) 4845 goto out_unlock; 4846 4847 /* we are just toggling between 20_NOHT and 20 */ 4848 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4849 def->width <= NL80211_CHAN_WIDTH_20) 4850 goto out_unlock; 4851 } 4852 4853 iwl_mvm_bt_coex_vif_change(mvm); 4854 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4855 ctx->rx_chains_static, 4856 ctx->rx_chains_dynamic); 4857 4858 out_unlock: 4859 mutex_unlock(&mvm->mutex); 4860 } 4861 4862 /* 4863 * This function executes the common part for MLD and non-MLD modes. 4864 * 4865 * Returns true if we're done assigning the chanctx 4866 * (either on failure or success) 4867 */ 4868 static bool 4869 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4870 struct ieee80211_vif *vif, 4871 struct ieee80211_chanctx_conf *ctx, 4872 bool switching_chanctx, int *ret) 4873 { 4874 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4875 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4876 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4877 4878 lockdep_assert_held(&mvm->mutex); 4879 4880 mvmvif->deflink.phy_ctxt = phy_ctxt; 4881 4882 switch (vif->type) { 4883 case NL80211_IFTYPE_AP: 4884 /* only needed if we're switching chanctx (i.e. during CSA) */ 4885 if (switching_chanctx) { 4886 mvmvif->ap_ibss_active = true; 4887 break; 4888 } 4889 fallthrough; 4890 case NL80211_IFTYPE_ADHOC: 4891 /* 4892 * The AP binding flow is handled as part of the start_ap flow 4893 * (in bss_info_changed), similarly for IBSS. 4894 */ 4895 *ret = 0; 4896 return true; 4897 case NL80211_IFTYPE_STATION: 4898 break; 4899 case NL80211_IFTYPE_MONITOR: 4900 /* always disable PS when a monitor interface is active */ 4901 mvmvif->ps_disabled = true; 4902 break; 4903 default: 4904 *ret = -EINVAL; 4905 return true; 4906 } 4907 return false; 4908 } 4909 4910 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4911 struct ieee80211_vif *vif, 4912 struct ieee80211_bss_conf *link_conf, 4913 struct ieee80211_chanctx_conf *ctx, 4914 bool switching_chanctx) 4915 { 4916 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4917 int ret; 4918 4919 if (WARN_ON(!link_conf)) 4920 return -EINVAL; 4921 4922 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4923 switching_chanctx, &ret)) 4924 goto out; 4925 4926 ret = iwl_mvm_binding_add_vif(mvm, vif); 4927 if (ret) 4928 goto out; 4929 4930 /* 4931 * Power state must be updated before quotas, 4932 * otherwise fw will complain. 4933 */ 4934 iwl_mvm_power_update_mac(mvm); 4935 4936 /* Setting the quota at this stage is only required for monitor 4937 * interfaces. For the other types, the bss_info changed flow 4938 * will handle quota settings. 4939 */ 4940 if (vif->type == NL80211_IFTYPE_MONITOR) { 4941 mvmvif->monitor_active = true; 4942 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4943 if (ret) 4944 goto out_remove_binding; 4945 4946 ret = iwl_mvm_add_snif_sta(mvm, vif); 4947 if (ret) 4948 goto out_remove_binding; 4949 4950 } 4951 4952 /* Handle binding during CSA */ 4953 if (vif->type == NL80211_IFTYPE_AP) { 4954 iwl_mvm_update_quotas(mvm, false, NULL); 4955 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4956 } 4957 4958 if (vif->type == NL80211_IFTYPE_STATION) { 4959 if (!switching_chanctx) { 4960 mvmvif->csa_bcn_pending = false; 4961 goto out; 4962 } 4963 4964 mvmvif->csa_bcn_pending = true; 4965 4966 if (!fw_has_capa(&mvm->fw->ucode_capa, 4967 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4968 u32 duration = 3 * vif->bss_conf.beacon_int; 4969 4970 /* Protect the session to make sure we hear the first 4971 * beacon on the new channel. 4972 */ 4973 iwl_mvm_protect_session(mvm, vif, duration, duration, 4974 vif->bss_conf.beacon_int / 2, 4975 true); 4976 } 4977 4978 iwl_mvm_update_quotas(mvm, false, NULL); 4979 } 4980 4981 goto out; 4982 4983 out_remove_binding: 4984 iwl_mvm_binding_remove_vif(mvm, vif); 4985 iwl_mvm_power_update_mac(mvm); 4986 out: 4987 if (ret) 4988 mvmvif->deflink.phy_ctxt = NULL; 4989 return ret; 4990 } 4991 4992 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4993 struct ieee80211_vif *vif, 4994 struct ieee80211_bss_conf *link_conf, 4995 struct ieee80211_chanctx_conf *ctx) 4996 { 4997 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4998 int ret; 4999 5000 mutex_lock(&mvm->mutex); 5001 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5002 mutex_unlock(&mvm->mutex); 5003 5004 return ret; 5005 } 5006 5007 /* 5008 * This function executes the common part for MLD and non-MLD modes. 5009 * 5010 * Returns if chanctx unassign chanctx is done 5011 * (either on failure or success) 5012 */ 5013 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5014 struct ieee80211_vif *vif, 5015 bool switching_chanctx) 5016 { 5017 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5018 5019 lockdep_assert_held(&mvm->mutex); 5020 iwl_mvm_remove_time_event(mvm, mvmvif, 5021 &mvmvif->time_event_data); 5022 5023 switch (vif->type) { 5024 case NL80211_IFTYPE_ADHOC: 5025 return true; 5026 case NL80211_IFTYPE_MONITOR: 5027 mvmvif->monitor_active = false; 5028 mvmvif->ps_disabled = false; 5029 break; 5030 case NL80211_IFTYPE_AP: 5031 /* This part is triggered only during CSA */ 5032 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5033 return true; 5034 5035 mvmvif->csa_countdown = false; 5036 5037 /* Set CS bit on all the stations */ 5038 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5039 5040 /* Save blocked iface, the timeout is set on the next beacon */ 5041 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5042 5043 mvmvif->ap_ibss_active = false; 5044 break; 5045 default: 5046 break; 5047 } 5048 return false; 5049 } 5050 5051 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5052 struct ieee80211_vif *vif, 5053 struct ieee80211_bss_conf *link_conf, 5054 struct ieee80211_chanctx_conf *ctx, 5055 bool switching_chanctx) 5056 { 5057 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5058 struct ieee80211_vif *disabled_vif = NULL; 5059 5060 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5061 goto out; 5062 5063 if (vif->type == NL80211_IFTYPE_MONITOR) 5064 iwl_mvm_rm_snif_sta(mvm, vif); 5065 5066 5067 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5068 disabled_vif = vif; 5069 if (!fw_has_capa(&mvm->fw->ucode_capa, 5070 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5071 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5072 } 5073 5074 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5075 iwl_mvm_binding_remove_vif(mvm, vif); 5076 5077 out: 5078 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5079 switching_chanctx) 5080 return; 5081 mvmvif->deflink.phy_ctxt = NULL; 5082 iwl_mvm_power_update_mac(mvm); 5083 } 5084 5085 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5086 struct ieee80211_vif *vif, 5087 struct ieee80211_bss_conf *link_conf, 5088 struct ieee80211_chanctx_conf *ctx) 5089 { 5090 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5091 5092 mutex_lock(&mvm->mutex); 5093 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5094 mutex_unlock(&mvm->mutex); 5095 } 5096 5097 static int 5098 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5099 struct ieee80211_vif_chanctx_switch *vifs, 5100 struct iwl_mvm_switch_vif_chanctx_ops *ops) 5101 { 5102 int ret; 5103 5104 mutex_lock(&mvm->mutex); 5105 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5106 vifs[0].old_ctx, true); 5107 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5108 5109 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5110 if (ret) { 5111 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5112 goto out_reassign; 5113 } 5114 5115 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5116 vifs[0].new_ctx, true); 5117 if (ret) { 5118 IWL_ERR(mvm, 5119 "failed to assign new_ctx during channel switch\n"); 5120 goto out_remove; 5121 } 5122 5123 /* we don't support TDLS during DCM - can be caused by channel switch */ 5124 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5125 iwl_mvm_teardown_tdls_peers(mvm); 5126 5127 goto out; 5128 5129 out_remove: 5130 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5131 5132 out_reassign: 5133 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5134 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5135 goto out_restart; 5136 } 5137 5138 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5139 vifs[0].old_ctx, true)) { 5140 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5141 goto out_restart; 5142 } 5143 5144 goto out; 5145 5146 out_restart: 5147 /* things keep failing, better restart the hw */ 5148 iwl_mvm_nic_restart(mvm, false); 5149 5150 out: 5151 mutex_unlock(&mvm->mutex); 5152 5153 return ret; 5154 } 5155 5156 static int 5157 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5158 struct ieee80211_vif_chanctx_switch *vifs, 5159 struct iwl_mvm_switch_vif_chanctx_ops *ops) 5160 { 5161 int ret; 5162 5163 mutex_lock(&mvm->mutex); 5164 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5165 vifs[0].old_ctx, true); 5166 5167 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5168 vifs[0].new_ctx, true); 5169 if (ret) { 5170 IWL_ERR(mvm, 5171 "failed to assign new_ctx during channel switch\n"); 5172 goto out_reassign; 5173 } 5174 5175 goto out; 5176 5177 out_reassign: 5178 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5179 vifs[0].old_ctx, true)) { 5180 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5181 goto out_restart; 5182 } 5183 5184 goto out; 5185 5186 out_restart: 5187 /* things keep failing, better restart the hw */ 5188 iwl_mvm_nic_restart(mvm, false); 5189 5190 out: 5191 mutex_unlock(&mvm->mutex); 5192 5193 return ret; 5194 } 5195 5196 /* Execute the common part for both MLD and non-MLD modes */ 5197 int 5198 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5199 struct ieee80211_vif_chanctx_switch *vifs, 5200 int n_vifs, 5201 enum ieee80211_chanctx_switch_mode mode, 5202 struct iwl_mvm_switch_vif_chanctx_ops *ops) 5203 { 5204 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5205 int ret; 5206 5207 /* we only support a single-vif right now */ 5208 if (n_vifs > 1) 5209 return -EOPNOTSUPP; 5210 5211 switch (mode) { 5212 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5213 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5214 break; 5215 case CHANCTX_SWMODE_REASSIGN_VIF: 5216 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5217 break; 5218 default: 5219 ret = -EOPNOTSUPP; 5220 break; 5221 } 5222 5223 return ret; 5224 } 5225 5226 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5227 struct ieee80211_vif_chanctx_switch *vifs, 5228 int n_vifs, 5229 enum ieee80211_chanctx_switch_mode mode) 5230 { 5231 struct iwl_mvm_switch_vif_chanctx_ops ops = { 5232 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5233 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5234 }; 5235 5236 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5237 } 5238 5239 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5240 { 5241 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5242 5243 return mvm->ibss_manager; 5244 } 5245 5246 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5247 bool set) 5248 { 5249 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5250 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5251 5252 if (!mvm_sta || !mvm_sta->vif) { 5253 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5254 return -EINVAL; 5255 } 5256 5257 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5258 &mvm_sta->vif->bss_conf); 5259 } 5260 5261 #ifdef CONFIG_NL80211_TESTMODE 5262 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5263 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5264 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5265 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5266 }; 5267 5268 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5269 struct ieee80211_vif *vif, 5270 void *data, int len) 5271 { 5272 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5273 int err; 5274 u32 noa_duration; 5275 5276 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5277 iwl_mvm_tm_policy, NULL); 5278 if (err) 5279 return err; 5280 5281 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5282 return -EINVAL; 5283 5284 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5285 case IWL_MVM_TM_CMD_SET_NOA: 5286 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5287 !vif->bss_conf.enable_beacon || 5288 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5289 return -EINVAL; 5290 5291 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5292 if (noa_duration >= vif->bss_conf.beacon_int) 5293 return -EINVAL; 5294 5295 mvm->noa_duration = noa_duration; 5296 mvm->noa_vif = vif; 5297 5298 return iwl_mvm_update_quotas(mvm, true, NULL); 5299 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5300 /* must be associated client vif - ignore authorized */ 5301 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5302 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5303 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5304 return -EINVAL; 5305 5306 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5307 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5308 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5309 } 5310 5311 return -EOPNOTSUPP; 5312 } 5313 5314 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5315 struct ieee80211_vif *vif, 5316 void *data, int len) 5317 { 5318 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5319 int err; 5320 5321 mutex_lock(&mvm->mutex); 5322 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5323 mutex_unlock(&mvm->mutex); 5324 5325 return err; 5326 } 5327 #endif 5328 5329 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5330 struct ieee80211_channel_switch *chsw) 5331 { 5332 /* By implementing this operation, we prevent mac80211 from 5333 * starting its own channel switch timer, so that we can call 5334 * ieee80211_chswitch_done() ourselves at the right time 5335 * (which is when the absence time event starts). 5336 */ 5337 5338 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5339 "dummy channel switch op\n"); 5340 } 5341 5342 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5343 struct ieee80211_vif *vif, 5344 struct ieee80211_channel_switch *chsw) 5345 { 5346 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5347 struct iwl_chan_switch_te_cmd cmd = { 5348 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5349 mvmvif->color)), 5350 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5351 .tsf = cpu_to_le32(chsw->timestamp), 5352 .cs_count = chsw->count, 5353 .cs_mode = chsw->block_tx, 5354 }; 5355 5356 lockdep_assert_held(&mvm->mutex); 5357 5358 if (chsw->delay) 5359 cmd.cs_delayed_bcn_count = 5360 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5361 5362 return iwl_mvm_send_cmd_pdu(mvm, 5363 WIDE_ID(MAC_CONF_GROUP, 5364 CHANNEL_SWITCH_TIME_EVENT_CMD), 5365 0, sizeof(cmd), &cmd); 5366 } 5367 5368 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5369 struct ieee80211_vif *vif, 5370 struct ieee80211_channel_switch *chsw) 5371 { 5372 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5373 u32 apply_time; 5374 5375 /* Schedule the time event to a bit before beacon 1, 5376 * to make sure we're in the new channel when the 5377 * GO/AP arrives. In case count <= 1 immediately schedule the 5378 * TE (this might result with some packet loss or connection 5379 * loss). 5380 */ 5381 if (chsw->count <= 1) 5382 apply_time = 0; 5383 else 5384 apply_time = chsw->device_timestamp + 5385 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5386 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5387 5388 if (chsw->block_tx) 5389 iwl_mvm_csa_client_absent(mvm, vif); 5390 5391 if (mvmvif->bf_data.bf_enabled) { 5392 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5393 5394 if (ret) 5395 return ret; 5396 } 5397 5398 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5399 apply_time); 5400 5401 return 0; 5402 } 5403 5404 #define IWL_MAX_CSA_BLOCK_TX 1500 5405 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5406 struct ieee80211_vif *vif, 5407 struct ieee80211_channel_switch *chsw) 5408 { 5409 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5410 struct ieee80211_vif *csa_vif; 5411 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5412 int ret; 5413 5414 mutex_lock(&mvm->mutex); 5415 5416 mvmvif->csa_failed = false; 5417 5418 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5419 chsw->chandef.center_freq1); 5420 5421 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5422 ieee80211_vif_to_wdev(vif), 5423 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5424 5425 switch (vif->type) { 5426 case NL80211_IFTYPE_AP: 5427 csa_vif = 5428 rcu_dereference_protected(mvm->csa_vif, 5429 lockdep_is_held(&mvm->mutex)); 5430 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5431 "Another CSA is already in progress")) { 5432 ret = -EBUSY; 5433 goto out_unlock; 5434 } 5435 5436 /* we still didn't unblock tx. prevent new CS meanwhile */ 5437 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5438 lockdep_is_held(&mvm->mutex))) { 5439 ret = -EBUSY; 5440 goto out_unlock; 5441 } 5442 5443 rcu_assign_pointer(mvm->csa_vif, vif); 5444 5445 if (WARN_ONCE(mvmvif->csa_countdown, 5446 "Previous CSA countdown didn't complete")) { 5447 ret = -EBUSY; 5448 goto out_unlock; 5449 } 5450 5451 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5452 5453 break; 5454 case NL80211_IFTYPE_STATION: 5455 /* 5456 * In the new flow FW is in charge of timing the switch so there 5457 * is no need for all of this 5458 */ 5459 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5460 CHANNEL_SWITCH_ERROR_NOTIF, 5461 0)) 5462 break; 5463 5464 /* 5465 * We haven't configured the firmware to be associated yet since 5466 * we don't know the dtim period. In this case, the firmware can't 5467 * track the beacons. 5468 */ 5469 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5470 ret = -EBUSY; 5471 goto out_unlock; 5472 } 5473 5474 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5475 schedule_delayed_work(&mvmvif->csa_work, 0); 5476 5477 if (chsw->block_tx) { 5478 /* 5479 * In case of undetermined / long time with immediate 5480 * quiet monitor status to gracefully disconnect 5481 */ 5482 if (!chsw->count || 5483 chsw->count * vif->bss_conf.beacon_int > 5484 IWL_MAX_CSA_BLOCK_TX) 5485 schedule_delayed_work(&mvmvif->csa_work, 5486 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5487 } 5488 5489 if (!fw_has_capa(&mvm->fw->ucode_capa, 5490 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5491 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5492 if (ret) 5493 goto out_unlock; 5494 } else { 5495 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5496 } 5497 5498 mvmvif->csa_count = chsw->count; 5499 mvmvif->csa_misbehave = false; 5500 break; 5501 default: 5502 break; 5503 } 5504 5505 mvmvif->ps_disabled = true; 5506 5507 ret = iwl_mvm_power_update_ps(mvm); 5508 if (ret) 5509 goto out_unlock; 5510 5511 /* we won't be on this channel any longer */ 5512 iwl_mvm_teardown_tdls_peers(mvm); 5513 5514 out_unlock: 5515 mutex_unlock(&mvm->mutex); 5516 5517 return ret; 5518 } 5519 5520 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5521 struct ieee80211_vif *vif, 5522 struct ieee80211_channel_switch *chsw) 5523 { 5524 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5525 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5526 struct iwl_chan_switch_te_cmd cmd = { 5527 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5528 mvmvif->color)), 5529 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5530 .tsf = cpu_to_le32(chsw->timestamp), 5531 .cs_count = chsw->count, 5532 .cs_mode = chsw->block_tx, 5533 }; 5534 5535 /* 5536 * In the new flow FW is in charge of timing the switch so there is no 5537 * need for all of this 5538 */ 5539 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5540 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5541 return; 5542 5543 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5544 return; 5545 5546 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5547 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5548 5549 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5550 if (mvmvif->csa_misbehave) { 5551 /* Second time, give up on this AP*/ 5552 iwl_mvm_abort_channel_switch(hw, vif); 5553 ieee80211_chswitch_done(vif, false); 5554 mvmvif->csa_misbehave = false; 5555 return; 5556 } 5557 mvmvif->csa_misbehave = true; 5558 } 5559 mvmvif->csa_count = chsw->count; 5560 5561 mutex_lock(&mvm->mutex); 5562 if (mvmvif->csa_failed) 5563 goto out_unlock; 5564 5565 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5566 WIDE_ID(MAC_CONF_GROUP, 5567 CHANNEL_SWITCH_TIME_EVENT_CMD), 5568 0, sizeof(cmd), &cmd)); 5569 out_unlock: 5570 mutex_unlock(&mvm->mutex); 5571 } 5572 5573 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5574 { 5575 int i; 5576 5577 if (!iwl_mvm_has_new_tx_api(mvm)) { 5578 if (drop) { 5579 mutex_lock(&mvm->mutex); 5580 iwl_mvm_flush_tx_path(mvm, 5581 iwl_mvm_flushable_queues(mvm) & queues); 5582 mutex_unlock(&mvm->mutex); 5583 } else { 5584 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5585 } 5586 return; 5587 } 5588 5589 mutex_lock(&mvm->mutex); 5590 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5591 struct ieee80211_sta *sta; 5592 5593 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5594 lockdep_is_held(&mvm->mutex)); 5595 if (IS_ERR_OR_NULL(sta)) 5596 continue; 5597 5598 if (drop) 5599 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5600 else 5601 iwl_mvm_wait_sta_queues_empty(mvm, 5602 iwl_mvm_sta_from_mac80211(sta)); 5603 } 5604 mutex_unlock(&mvm->mutex); 5605 } 5606 5607 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5608 u32 queues, bool drop) 5609 { 5610 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5611 struct iwl_mvm_vif *mvmvif; 5612 struct iwl_mvm_sta *mvmsta; 5613 struct ieee80211_sta *sta; 5614 bool ap_sta_done = false; 5615 int i; 5616 u32 msk = 0; 5617 5618 if (!vif) { 5619 iwl_mvm_flush_no_vif(mvm, queues, drop); 5620 return; 5621 } 5622 5623 if (vif->type != NL80211_IFTYPE_STATION) 5624 return; 5625 5626 /* Make sure we're done with the deferred traffic before flushing */ 5627 flush_work(&mvm->add_stream_wk); 5628 5629 mutex_lock(&mvm->mutex); 5630 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5631 5632 /* flush the AP-station and all TDLS peers */ 5633 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5634 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5635 lockdep_is_held(&mvm->mutex)); 5636 if (IS_ERR_OR_NULL(sta)) 5637 continue; 5638 5639 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5640 if (mvmsta->vif != vif) 5641 continue; 5642 5643 if (sta == mvmvif->ap_sta) { 5644 if (ap_sta_done) 5645 continue; 5646 ap_sta_done = true; 5647 } 5648 5649 /* make sure only TDLS peers or the AP are flushed */ 5650 WARN_ON_ONCE(sta != mvmvif->ap_sta && !sta->tdls); 5651 5652 if (drop) { 5653 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5654 IWL_ERR(mvm, "flush request fail\n"); 5655 } else { 5656 if (iwl_mvm_has_new_tx_api(mvm)) 5657 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5658 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5659 msk |= mvmsta->tfd_queue_msk; 5660 } 5661 } 5662 5663 mutex_unlock(&mvm->mutex); 5664 5665 /* this can take a while, and we may need/want other operations 5666 * to succeed while doing this, so do it without the mutex held 5667 */ 5668 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5669 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5670 } 5671 5672 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5673 struct survey_info *survey) 5674 { 5675 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5676 int ret; 5677 5678 memset(survey, 0, sizeof(*survey)); 5679 5680 /* only support global statistics right now */ 5681 if (idx != 0) 5682 return -ENOENT; 5683 5684 if (!fw_has_capa(&mvm->fw->ucode_capa, 5685 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5686 return -ENOENT; 5687 5688 mutex_lock(&mvm->mutex); 5689 5690 if (iwl_mvm_firmware_running(mvm)) { 5691 ret = iwl_mvm_request_statistics(mvm, false); 5692 if (ret) 5693 goto out; 5694 } 5695 5696 survey->filled = SURVEY_INFO_TIME | 5697 SURVEY_INFO_TIME_RX | 5698 SURVEY_INFO_TIME_TX | 5699 SURVEY_INFO_TIME_SCAN; 5700 survey->time = mvm->accu_radio_stats.on_time_rf + 5701 mvm->radio_stats.on_time_rf; 5702 do_div(survey->time, USEC_PER_MSEC); 5703 5704 survey->time_rx = mvm->accu_radio_stats.rx_time + 5705 mvm->radio_stats.rx_time; 5706 do_div(survey->time_rx, USEC_PER_MSEC); 5707 5708 survey->time_tx = mvm->accu_radio_stats.tx_time + 5709 mvm->radio_stats.tx_time; 5710 do_div(survey->time_tx, USEC_PER_MSEC); 5711 5712 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5713 mvm->radio_stats.on_time_scan; 5714 do_div(survey->time_scan, USEC_PER_MSEC); 5715 5716 ret = 0; 5717 out: 5718 mutex_unlock(&mvm->mutex); 5719 return ret; 5720 } 5721 5722 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5723 { 5724 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5725 u32 gi_ltf; 5726 5727 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5728 case RATE_MCS_CHAN_WIDTH_20: 5729 rinfo->bw = RATE_INFO_BW_20; 5730 break; 5731 case RATE_MCS_CHAN_WIDTH_40: 5732 rinfo->bw = RATE_INFO_BW_40; 5733 break; 5734 case RATE_MCS_CHAN_WIDTH_80: 5735 rinfo->bw = RATE_INFO_BW_80; 5736 break; 5737 case RATE_MCS_CHAN_WIDTH_160: 5738 rinfo->bw = RATE_INFO_BW_160; 5739 break; 5740 case RATE_MCS_CHAN_WIDTH_320: 5741 rinfo->bw = RATE_INFO_BW_320; 5742 break; 5743 } 5744 5745 if (format == RATE_MCS_CCK_MSK || 5746 format == RATE_MCS_LEGACY_OFDM_MSK) { 5747 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5748 5749 /* add the offset needed to get to the legacy ofdm indices */ 5750 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5751 rate += IWL_FIRST_OFDM_RATE; 5752 5753 switch (rate) { 5754 case IWL_RATE_1M_INDEX: 5755 rinfo->legacy = 10; 5756 break; 5757 case IWL_RATE_2M_INDEX: 5758 rinfo->legacy = 20; 5759 break; 5760 case IWL_RATE_5M_INDEX: 5761 rinfo->legacy = 55; 5762 break; 5763 case IWL_RATE_11M_INDEX: 5764 rinfo->legacy = 110; 5765 break; 5766 case IWL_RATE_6M_INDEX: 5767 rinfo->legacy = 60; 5768 break; 5769 case IWL_RATE_9M_INDEX: 5770 rinfo->legacy = 90; 5771 break; 5772 case IWL_RATE_12M_INDEX: 5773 rinfo->legacy = 120; 5774 break; 5775 case IWL_RATE_18M_INDEX: 5776 rinfo->legacy = 180; 5777 break; 5778 case IWL_RATE_24M_INDEX: 5779 rinfo->legacy = 240; 5780 break; 5781 case IWL_RATE_36M_INDEX: 5782 rinfo->legacy = 360; 5783 break; 5784 case IWL_RATE_48M_INDEX: 5785 rinfo->legacy = 480; 5786 break; 5787 case IWL_RATE_54M_INDEX: 5788 rinfo->legacy = 540; 5789 } 5790 return; 5791 } 5792 5793 rinfo->nss = u32_get_bits(rate_n_flags, 5794 RATE_MCS_NSS_MSK) + 1; 5795 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5796 RATE_HT_MCS_INDEX(rate_n_flags) : 5797 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5798 5799 if (rate_n_flags & RATE_MCS_SGI_MSK) 5800 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5801 5802 switch (format) { 5803 case RATE_MCS_EHT_MSK: 5804 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5805 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5806 break; 5807 case RATE_MCS_HE_MSK: 5808 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5809 5810 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5811 5812 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5813 rinfo->bw = RATE_INFO_BW_HE_RU; 5814 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5815 } 5816 5817 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5818 case RATE_MCS_HE_TYPE_SU: 5819 case RATE_MCS_HE_TYPE_EXT_SU: 5820 if (gi_ltf == 0 || gi_ltf == 1) 5821 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5822 else if (gi_ltf == 2) 5823 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5824 else if (gi_ltf == 3) 5825 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5826 else 5827 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5828 break; 5829 case RATE_MCS_HE_TYPE_MU: 5830 if (gi_ltf == 0 || gi_ltf == 1) 5831 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5832 else if (gi_ltf == 2) 5833 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5834 else 5835 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5836 break; 5837 case RATE_MCS_HE_TYPE_TRIG: 5838 if (gi_ltf == 0 || gi_ltf == 1) 5839 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5840 else 5841 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5842 break; 5843 } 5844 5845 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5846 rinfo->he_dcm = 1; 5847 break; 5848 case RATE_MCS_HT_MSK: 5849 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5850 break; 5851 case RATE_MCS_VHT_MSK: 5852 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5853 break; 5854 } 5855 } 5856 5857 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5858 struct ieee80211_vif *vif, 5859 struct ieee80211_sta *sta, 5860 struct station_info *sinfo) 5861 { 5862 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5863 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5864 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5865 5866 if (mvmsta->deflink.avg_energy) { 5867 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5868 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5869 } 5870 5871 if (iwl_mvm_has_tlc_offload(mvm)) { 5872 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5873 5874 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5875 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5876 } 5877 5878 /* if beacon filtering isn't on mac80211 does it anyway */ 5879 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5880 return; 5881 5882 if (!vif->cfg.assoc) 5883 return; 5884 5885 mutex_lock(&mvm->mutex); 5886 5887 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5888 goto unlock; 5889 5890 if (iwl_mvm_request_statistics(mvm, false)) 5891 goto unlock; 5892 5893 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5894 mvmvif->deflink.beacon_stats.accu_num_beacons; 5895 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5896 if (mvmvif->deflink.beacon_stats.avg_signal) { 5897 /* firmware only reports a value after RXing a few beacons */ 5898 sinfo->rx_beacon_signal_avg = 5899 mvmvif->deflink.beacon_stats.avg_signal; 5900 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5901 } 5902 unlock: 5903 mutex_unlock(&mvm->mutex); 5904 } 5905 5906 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5907 struct ieee80211_vif *vif, 5908 const struct ieee80211_mlme_event *mlme) 5909 { 5910 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5911 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5912 iwl_dbg_tlv_time_point(&mvm->fwrt, 5913 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5914 NULL); 5915 return; 5916 } 5917 5918 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5919 iwl_dbg_tlv_time_point(&mvm->fwrt, 5920 IWL_FW_INI_TIME_POINT_DEASSOC, 5921 NULL); 5922 return; 5923 } 5924 } 5925 5926 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5927 struct ieee80211_vif *vif, 5928 const struct ieee80211_event *event) 5929 { 5930 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5931 do { \ 5932 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5933 break; \ 5934 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5935 } while (0) 5936 5937 struct iwl_fw_dbg_trigger_tlv *trig; 5938 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5939 5940 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5941 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5942 return; 5943 } 5944 5945 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5946 FW_DBG_TRIGGER_MLME); 5947 if (!trig) 5948 return; 5949 5950 trig_mlme = (void *)trig->data; 5951 5952 if (event->u.mlme.data == ASSOC_EVENT) { 5953 if (event->u.mlme.status == MLME_DENIED) 5954 CHECK_MLME_TRIGGER(stop_assoc_denied, 5955 "DENIED ASSOC: reason %d", 5956 event->u.mlme.reason); 5957 else if (event->u.mlme.status == MLME_TIMEOUT) 5958 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5959 "ASSOC TIMEOUT"); 5960 } else if (event->u.mlme.data == AUTH_EVENT) { 5961 if (event->u.mlme.status == MLME_DENIED) 5962 CHECK_MLME_TRIGGER(stop_auth_denied, 5963 "DENIED AUTH: reason %d", 5964 event->u.mlme.reason); 5965 else if (event->u.mlme.status == MLME_TIMEOUT) 5966 CHECK_MLME_TRIGGER(stop_auth_timeout, 5967 "AUTH TIMEOUT"); 5968 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5969 CHECK_MLME_TRIGGER(stop_rx_deauth, 5970 "DEAUTH RX %d", event->u.mlme.reason); 5971 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5972 CHECK_MLME_TRIGGER(stop_tx_deauth, 5973 "DEAUTH TX %d", event->u.mlme.reason); 5974 } 5975 #undef CHECK_MLME_TRIGGER 5976 } 5977 5978 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5979 struct ieee80211_vif *vif, 5980 const struct ieee80211_event *event) 5981 { 5982 struct iwl_fw_dbg_trigger_tlv *trig; 5983 struct iwl_fw_dbg_trigger_ba *ba_trig; 5984 5985 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5986 FW_DBG_TRIGGER_BA); 5987 if (!trig) 5988 return; 5989 5990 ba_trig = (void *)trig->data; 5991 5992 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5993 return; 5994 5995 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5996 "BAR received from %pM, tid %d, ssn %d", 5997 event->u.ba.sta->addr, event->u.ba.tid, 5998 event->u.ba.ssn); 5999 } 6000 6001 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6002 struct ieee80211_vif *vif, 6003 const struct ieee80211_event *event) 6004 { 6005 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6006 6007 switch (event->type) { 6008 case MLME_EVENT: 6009 iwl_mvm_event_mlme_callback(mvm, vif, event); 6010 break; 6011 case BAR_RX_EVENT: 6012 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6013 break; 6014 case BA_FRAME_TIMEOUT: 6015 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6016 event->u.ba.tid); 6017 break; 6018 default: 6019 break; 6020 } 6021 } 6022 6023 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6024 enum iwl_mvm_rxq_notif_type type, 6025 bool sync, 6026 const void *data, u32 size) 6027 { 6028 struct { 6029 struct iwl_rxq_sync_cmd cmd; 6030 struct iwl_mvm_internal_rxq_notif notif; 6031 } __packed cmd = { 6032 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6033 .cmd.count = 6034 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6035 size), 6036 .notif.type = type, 6037 .notif.sync = sync, 6038 }; 6039 struct iwl_host_cmd hcmd = { 6040 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6041 .data[0] = &cmd, 6042 .len[0] = sizeof(cmd), 6043 .data[1] = data, 6044 .len[1] = size, 6045 .flags = sync ? 0 : CMD_ASYNC, 6046 }; 6047 int ret; 6048 6049 /* size must be a multiple of DWORD */ 6050 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6051 return; 6052 6053 if (!iwl_mvm_has_new_rx_api(mvm)) 6054 return; 6055 6056 if (sync) { 6057 cmd.notif.cookie = mvm->queue_sync_cookie; 6058 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6059 } 6060 6061 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6062 if (ret) { 6063 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6064 goto out; 6065 } 6066 6067 if (sync) { 6068 lockdep_assert_held(&mvm->mutex); 6069 ret = wait_event_timeout(mvm->rx_sync_waitq, 6070 READ_ONCE(mvm->queue_sync_state) == 0 || 6071 iwl_mvm_is_radio_killed(mvm), 6072 HZ); 6073 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6074 "queue sync: failed to sync, state is 0x%lx\n", 6075 mvm->queue_sync_state); 6076 } 6077 6078 out: 6079 if (sync) { 6080 mvm->queue_sync_state = 0; 6081 mvm->queue_sync_cookie++; 6082 } 6083 } 6084 6085 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6086 { 6087 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6088 6089 mutex_lock(&mvm->mutex); 6090 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6091 mutex_unlock(&mvm->mutex); 6092 } 6093 6094 int 6095 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6096 struct ieee80211_vif *vif, 6097 struct cfg80211_ftm_responder_stats *stats) 6098 { 6099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6100 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6101 6102 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6103 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6104 return -EINVAL; 6105 6106 mutex_lock(&mvm->mutex); 6107 *stats = mvm->ftm_resp_stats; 6108 mutex_unlock(&mvm->mutex); 6109 6110 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6111 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6112 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6113 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6114 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6115 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6116 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6117 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6118 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6119 6120 return 0; 6121 } 6122 6123 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6124 struct cfg80211_pmsr_request *request) 6125 { 6126 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6127 int ret; 6128 6129 mutex_lock(&mvm->mutex); 6130 ret = iwl_mvm_ftm_start(mvm, vif, request); 6131 mutex_unlock(&mvm->mutex); 6132 6133 return ret; 6134 } 6135 6136 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6137 struct cfg80211_pmsr_request *request) 6138 { 6139 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6140 6141 mutex_lock(&mvm->mutex); 6142 iwl_mvm_ftm_abort(mvm, request); 6143 mutex_unlock(&mvm->mutex); 6144 } 6145 6146 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6147 { 6148 u8 protocol = ip_hdr(skb)->protocol; 6149 6150 if (!IS_ENABLED(CONFIG_INET)) 6151 return false; 6152 6153 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6154 } 6155 6156 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6157 struct sk_buff *head, 6158 struct sk_buff *skb) 6159 { 6160 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6161 6162 if (iwl_mvm_has_new_tx_csum(mvm)) 6163 return iwl_mvm_tx_csum_bz(mvm, head, true) == 6164 iwl_mvm_tx_csum_bz(mvm, skb, true); 6165 6166 /* For now don't aggregate IPv6 in AMSDU */ 6167 if (skb->protocol != htons(ETH_P_IP)) 6168 return false; 6169 6170 if (!iwl_mvm_is_csum_supported(mvm)) 6171 return true; 6172 6173 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6174 } 6175 6176 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6177 struct ieee80211_vif *vif, 6178 struct cfg80211_set_hw_timestamp *hwts) 6179 { 6180 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6181 u32 protocols = 0; 6182 int ret; 6183 6184 /* HW timestamping is only supported for a specific station */ 6185 if (!hwts->macaddr) 6186 return -EOPNOTSUPP; 6187 6188 if (hwts->enable) 6189 protocols = 6190 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6191 6192 mutex_lock(&mvm->mutex); 6193 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6194 mutex_unlock(&mvm->mutex); 6195 6196 return ret; 6197 } 6198 6199 const struct ieee80211_ops iwl_mvm_hw_ops = { 6200 .tx = iwl_mvm_mac_tx, 6201 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6202 .ampdu_action = iwl_mvm_mac_ampdu_action, 6203 .get_antenna = iwl_mvm_op_get_antenna, 6204 .start = iwl_mvm_mac_start, 6205 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6206 .stop = iwl_mvm_mac_stop, 6207 .add_interface = iwl_mvm_mac_add_interface, 6208 .remove_interface = iwl_mvm_mac_remove_interface, 6209 .config = iwl_mvm_mac_config, 6210 .prepare_multicast = iwl_mvm_prepare_multicast, 6211 .configure_filter = iwl_mvm_configure_filter, 6212 .config_iface_filter = iwl_mvm_config_iface_filter, 6213 .bss_info_changed = iwl_mvm_bss_info_changed, 6214 .hw_scan = iwl_mvm_mac_hw_scan, 6215 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6216 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6217 .sta_state = iwl_mvm_mac_sta_state, 6218 .sta_notify = iwl_mvm_mac_sta_notify, 6219 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6220 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6221 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6222 .sta_rc_update = iwl_mvm_sta_rc_update, 6223 .conf_tx = iwl_mvm_mac_conf_tx, 6224 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6225 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6226 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6227 .flush = iwl_mvm_mac_flush, 6228 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6229 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6230 .set_key = iwl_mvm_mac_set_key, 6231 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6232 .remain_on_channel = iwl_mvm_roc, 6233 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6234 .add_chanctx = iwl_mvm_add_chanctx, 6235 .remove_chanctx = iwl_mvm_remove_chanctx, 6236 .change_chanctx = iwl_mvm_change_chanctx, 6237 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6238 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6239 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6240 6241 .start_ap = iwl_mvm_start_ap, 6242 .stop_ap = iwl_mvm_stop_ap, 6243 .join_ibss = iwl_mvm_start_ibss, 6244 .leave_ibss = iwl_mvm_stop_ibss, 6245 6246 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6247 6248 .set_tim = iwl_mvm_set_tim, 6249 6250 .channel_switch = iwl_mvm_channel_switch, 6251 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6252 .post_channel_switch = iwl_mvm_post_channel_switch, 6253 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6254 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6255 6256 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6257 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6258 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6259 6260 .event_callback = iwl_mvm_mac_event_callback, 6261 6262 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6263 6264 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6265 6266 #ifdef CONFIG_PM_SLEEP 6267 /* look at d3.c */ 6268 .suspend = iwl_mvm_suspend, 6269 .resume = iwl_mvm_resume, 6270 .set_wakeup = iwl_mvm_set_wakeup, 6271 .set_rekey_data = iwl_mvm_set_rekey_data, 6272 #if IS_ENABLED(CONFIG_IPV6) 6273 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6274 #endif 6275 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6276 #endif 6277 .get_survey = iwl_mvm_mac_get_survey, 6278 .sta_statistics = iwl_mvm_mac_sta_statistics, 6279 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6280 .start_pmsr = iwl_mvm_start_pmsr, 6281 .abort_pmsr = iwl_mvm_abort_pmsr, 6282 6283 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6284 #ifdef CONFIG_IWLWIFI_DEBUGFS 6285 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 6286 #endif 6287 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6288 }; 6289