1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-eeprom-parse.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_STATION), 37 }, 38 { 39 .max = 1, 40 .types = BIT(NL80211_IFTYPE_AP) | 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | 42 BIT(NL80211_IFTYPE_P2P_GO), 43 }, 44 { 45 .max = 1, 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 47 }, 48 }; 49 50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 51 { 52 .num_different_channels = 2, 53 .max_interfaces = 3, 54 .limits = iwl_mvm_limits, 55 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 56 }, 57 }; 58 59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 60 .max_peers = IWL_MVM_TOF_MAX_APS, 61 .report_ap_tsf = 1, 62 .randomize_mac_addr = 1, 63 64 .ftm = { 65 .supported = 1, 66 .asap = 1, 67 .non_asap = 1, 68 .request_lci = 1, 69 .request_civicloc = 1, 70 .trigger_based = 1, 71 .non_trigger_based = 1, 72 .max_bursts_exponent = -1, /* all supported */ 73 .max_ftms_per_burst = 0, /* no limits */ 74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80) | 78 BIT(NL80211_CHAN_WIDTH_160), 79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 80 BIT(NL80211_PREAMBLE_HT) | 81 BIT(NL80211_PREAMBLE_VHT) | 82 BIT(NL80211_PREAMBLE_HE), 83 }, 84 }; 85 86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 87 enum set_key_cmd cmd, 88 struct ieee80211_vif *vif, 89 struct ieee80211_sta *sta, 90 struct ieee80211_key_conf *key); 91 92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 93 { 94 int i; 95 96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 97 for (i = 0; i < NUM_PHY_CTX; i++) { 98 mvm->phy_ctxts[i].id = i; 99 mvm->phy_ctxts[i].ref = 0; 100 } 101 } 102 103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 104 const char *alpha2, 105 enum iwl_mcc_source src_id, 106 bool *changed) 107 { 108 struct ieee80211_regdomain *regd = NULL; 109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 111 struct iwl_mcc_update_resp_v8 *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 le32_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 */ 248 249 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 250 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 251 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 252 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 253 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 254 255 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 256 { 257 .iftype = NL80211_IFTYPE_STATION, 258 .extended_capabilities = he_if_types_ext_capa_sta, 259 .extended_capabilities_mask = he_if_types_ext_capa_sta, 260 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 261 /* relevant only if EHT is supported */ 262 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 263 }, 264 { 265 .iftype = NL80211_IFTYPE_STATION, 266 .extended_capabilities = tm_if_types_ext_capa_sta, 267 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 268 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 269 /* relevant only if EHT is supported */ 270 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 271 }, 272 }; 273 274 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 275 { 276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 277 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 278 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 279 return 0; 280 } 281 282 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 283 { 284 struct ieee80211_hw *hw = mvm->hw; 285 int num_mac, ret, i; 286 static const u32 mvm_ciphers[] = { 287 WLAN_CIPHER_SUITE_WEP40, 288 WLAN_CIPHER_SUITE_WEP104, 289 WLAN_CIPHER_SUITE_TKIP, 290 WLAN_CIPHER_SUITE_CCMP, 291 }; 292 #ifdef CONFIG_PM_SLEEP 293 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 294 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 295 #endif 296 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 297 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 298 299 /* Tell mac80211 our characteristics */ 300 ieee80211_hw_set(hw, SIGNAL_DBM); 301 ieee80211_hw_set(hw, SPECTRUM_MGMT); 302 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 303 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 304 ieee80211_hw_set(hw, SUPPORTS_PS); 305 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 306 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 307 ieee80211_hw_set(hw, CONNECTION_MONITOR); 308 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 309 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 310 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 311 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 312 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 313 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 314 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 315 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 316 317 /* Set this early since we need to have it for the check below */ 318 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 319 !iwlwifi_mod_params.disable_11ax && 320 !iwlwifi_mod_params.disable_11be) 321 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 322 323 /* With MLD FW API, it tracks timing by itself, 324 * no need for any timing from the host 325 */ 326 if (!mvm->mld_api_is_used) 327 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 328 329 /* We should probably have this, but mac80211 330 * currently doesn't support it for MLO. 331 */ 332 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 333 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 334 335 /* 336 * On older devices, enabling TX A-MSDU occasionally leads to 337 * something getting messed up, the command read from the FIFO 338 * gets out of sync and isn't a TX command, so that we have an 339 * assert EDC. 340 * 341 * It's not clear where the bug is, but since we didn't used to 342 * support A-MSDU until moving the mac80211 iTXQs, just leave it 343 * for older devices. We also don't see this issue on any newer 344 * devices. 345 */ 346 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 347 ieee80211_hw_set(hw, TX_AMSDU); 348 ieee80211_hw_set(hw, TX_FRAG_LIST); 349 350 if (iwl_mvm_has_tlc_offload(mvm)) { 351 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 352 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 353 } 354 355 if (iwl_mvm_has_new_rx_api(mvm)) 356 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 357 358 if (fw_has_capa(&mvm->fw->ucode_capa, 359 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 360 ieee80211_hw_set(hw, AP_LINK_PS); 361 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 362 /* 363 * we absolutely need this for the new TX API since that comes 364 * with many more queues than the current code can deal with 365 * for station powersave 366 */ 367 return -EINVAL; 368 } 369 370 if (mvm->trans->num_rx_queues > 1) 371 ieee80211_hw_set(hw, USES_RSS); 372 373 if (mvm->trans->max_skb_frags) 374 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 375 376 hw->queues = IEEE80211_NUM_ACS; 377 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 378 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 379 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 380 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 381 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 382 383 hw->radiotap_timestamp.units_pos = 384 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 385 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 386 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 387 hw->radiotap_timestamp.accuracy = 22; 388 389 if (!iwl_mvm_has_tlc_offload(mvm)) 390 hw->rate_control_algorithm = RS_NAME; 391 392 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 393 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 394 hw->max_tx_fragments = mvm->trans->max_skb_frags; 395 396 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 397 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 398 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 399 hw->wiphy->cipher_suites = mvm->ciphers; 400 401 if (iwl_mvm_has_new_rx_api(mvm)) { 402 mvm->ciphers[hw->wiphy->n_cipher_suites] = 403 WLAN_CIPHER_SUITE_GCMP; 404 hw->wiphy->n_cipher_suites++; 405 mvm->ciphers[hw->wiphy->n_cipher_suites] = 406 WLAN_CIPHER_SUITE_GCMP_256; 407 hw->wiphy->n_cipher_suites++; 408 } 409 410 if (iwlwifi_mod_params.swcrypto) 411 IWL_ERR(mvm, 412 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 413 if (!iwlwifi_mod_params.bt_coex_active) 414 IWL_ERR(mvm, 415 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 416 417 ieee80211_hw_set(hw, MFP_CAPABLE); 418 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 419 hw->wiphy->n_cipher_suites++; 420 if (iwl_mvm_has_new_rx_api(mvm)) { 421 mvm->ciphers[hw->wiphy->n_cipher_suites] = 422 WLAN_CIPHER_SUITE_BIP_GMAC_128; 423 hw->wiphy->n_cipher_suites++; 424 mvm->ciphers[hw->wiphy->n_cipher_suites] = 425 WLAN_CIPHER_SUITE_BIP_GMAC_256; 426 hw->wiphy->n_cipher_suites++; 427 } 428 429 wiphy_ext_feature_set(hw->wiphy, 430 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 431 wiphy_ext_feature_set(hw->wiphy, 432 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 433 434 if (fw_has_capa(&mvm->fw->ucode_capa, 435 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 436 wiphy_ext_feature_set(hw->wiphy, 437 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 438 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 439 } 440 441 if (sec_key_ver && 442 fw_has_capa(&mvm->fw->ucode_capa, 443 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 444 wiphy_ext_feature_set(hw->wiphy, 445 NL80211_EXT_FEATURE_BEACON_PROTECTION); 446 else if (fw_has_capa(&mvm->fw->ucode_capa, 447 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 448 wiphy_ext_feature_set(hw->wiphy, 449 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 450 451 if (fw_has_capa(&mvm->fw->ucode_capa, 452 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 453 hw->wiphy->hw_timestamp_max_peers = 1; 454 455 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 456 hw->wiphy->features |= 457 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 458 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 459 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 460 461 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 462 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 463 hw->chanctx_data_size = sizeof(u16); 464 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 465 466 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 467 BIT(NL80211_IFTYPE_P2P_CLIENT) | 468 BIT(NL80211_IFTYPE_AP) | 469 BIT(NL80211_IFTYPE_P2P_GO) | 470 BIT(NL80211_IFTYPE_P2P_DEVICE) | 471 BIT(NL80211_IFTYPE_ADHOC); 472 473 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 474 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 475 476 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 477 * the hw, preventing us to control which key(id) to use per MPDU. 478 * Till that's fixed we can't use Extended Key ID for the newer cards. 479 */ 480 if (!iwl_mvm_has_new_tx_api(mvm)) 481 wiphy_ext_feature_set(hw->wiphy, 482 NL80211_EXT_FEATURE_EXT_KEY_ID); 483 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 484 485 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 486 if (iwl_mvm_is_lar_supported(mvm)) 487 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 488 else 489 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 490 REGULATORY_DISABLE_BEACON_HINTS; 491 492 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 493 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 494 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 495 496 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 497 hw->wiphy->n_iface_combinations = 498 ARRAY_SIZE(iwl_mvm_iface_combinations); 499 500 hw->wiphy->max_remain_on_channel_duration = 10000; 501 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 502 503 /* Extract MAC address */ 504 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 505 hw->wiphy->addresses = mvm->addresses; 506 hw->wiphy->n_addresses = 1; 507 508 /* Extract additional MAC addresses if available */ 509 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 510 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 511 512 for (i = 1; i < num_mac; i++) { 513 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 514 ETH_ALEN); 515 mvm->addresses[i].addr[5]++; 516 hw->wiphy->n_addresses++; 517 } 518 519 iwl_mvm_reset_phy_ctxts(mvm); 520 521 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 522 523 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 524 525 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 526 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 527 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 528 529 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 530 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 531 else 532 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 533 534 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 535 hw->wiphy->bands[NL80211_BAND_2GHZ] = 536 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 537 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 538 hw->wiphy->bands[NL80211_BAND_5GHZ] = 539 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 540 541 if (fw_has_capa(&mvm->fw->ucode_capa, 542 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 543 fw_has_api(&mvm->fw->ucode_capa, 544 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 545 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 546 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 547 } 548 if (fw_has_capa(&mvm->fw->ucode_capa, 549 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 550 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 551 hw->wiphy->bands[NL80211_BAND_6GHZ] = 552 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 553 554 hw->wiphy->hw_version = mvm->trans->hw_id; 555 556 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 557 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 558 else 559 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 560 561 hw->wiphy->max_sched_scan_reqs = 1; 562 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 563 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 564 /* we create the 802.11 header and zero length SSID IE. */ 565 hw->wiphy->max_sched_scan_ie_len = 566 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 567 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 568 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 569 570 /* 571 * the firmware uses u8 for num of iterations, but 0xff is saved for 572 * infinite loop, so the maximum number of iterations is actually 254. 573 */ 574 hw->wiphy->max_sched_scan_plan_iterations = 254; 575 576 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 577 NL80211_FEATURE_LOW_PRIORITY_SCAN | 578 NL80211_FEATURE_P2P_GO_OPPPS | 579 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 580 NL80211_FEATURE_DYNAMIC_SMPS | 581 NL80211_FEATURE_STATIC_SMPS | 582 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 583 584 if (fw_has_capa(&mvm->fw->ucode_capa, 585 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 586 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 587 if (fw_has_capa(&mvm->fw->ucode_capa, 588 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 589 hw->wiphy->features |= NL80211_FEATURE_QUIET; 590 591 if (fw_has_capa(&mvm->fw->ucode_capa, 592 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 593 hw->wiphy->features |= 594 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 595 596 if (fw_has_capa(&mvm->fw->ucode_capa, 597 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 598 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 599 600 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 601 IWL_FW_CMD_VER_UNKNOWN) == 3) 602 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 603 604 if (fw_has_api(&mvm->fw->ucode_capa, 605 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 606 wiphy_ext_feature_set(hw->wiphy, 607 NL80211_EXT_FEATURE_SCAN_START_TIME); 608 wiphy_ext_feature_set(hw->wiphy, 609 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 610 } 611 612 if (iwl_mvm_is_oce_supported(mvm)) { 613 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 614 615 wiphy_ext_feature_set(hw->wiphy, 616 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 617 wiphy_ext_feature_set(hw->wiphy, 618 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 619 wiphy_ext_feature_set(hw->wiphy, 620 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 621 622 /* Old firmware also supports probe deferral and suppression */ 623 if (scan_ver < 15) 624 wiphy_ext_feature_set(hw->wiphy, 625 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 626 } 627 628 hw->wiphy->iftype_ext_capab = NULL; 629 hw->wiphy->num_iftype_ext_capab = 0; 630 631 if (mvm->nvm_data->sku_cap_11ax_enable && 632 !iwlwifi_mod_params.disable_11ax) { 633 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 634 hw->wiphy->num_iftype_ext_capab = 635 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 636 637 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 638 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 639 } 640 641 if (iwl_fw_lookup_cmd_ver(mvm->fw, 642 WIDE_ID(DATA_PATH_GROUP, 643 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 644 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 645 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 646 647 if (!hw->wiphy->iftype_ext_capab) { 648 hw->wiphy->num_iftype_ext_capab = 1; 649 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 650 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 651 } else { 652 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 653 } 654 } 655 656 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 657 658 #ifdef CONFIG_PM_SLEEP 659 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 660 mvm->trans->ops->d3_suspend && 661 mvm->trans->ops->d3_resume && 662 device_can_wakeup(mvm->trans->dev)) { 663 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 664 WIPHY_WOWLAN_DISCONNECT | 665 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 666 WIPHY_WOWLAN_RFKILL_RELEASE | 667 WIPHY_WOWLAN_NET_DETECT; 668 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 669 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 670 WIPHY_WOWLAN_4WAY_HANDSHAKE; 671 672 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 673 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 674 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 675 mvm->wowlan.max_nd_match_sets = 676 iwl_umac_scan_get_max_profiles(mvm->fw); 677 hw->wiphy->wowlan = &mvm->wowlan; 678 } 679 #endif 680 681 ret = iwl_mvm_leds_init(mvm); 682 if (ret) 683 return ret; 684 685 if (fw_has_capa(&mvm->fw->ucode_capa, 686 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 687 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 688 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 689 ieee80211_hw_set(hw, TDLS_WIDER_BW); 690 } 691 692 if (fw_has_capa(&mvm->fw->ucode_capa, 693 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 694 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 695 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 696 } 697 698 hw->netdev_features |= mvm->cfg->features; 699 if (!iwl_mvm_is_csum_supported(mvm)) 700 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 701 702 if (mvm->cfg->vht_mu_mimo_supported) 703 wiphy_ext_feature_set(hw->wiphy, 704 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 705 706 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 707 wiphy_ext_feature_set(hw->wiphy, 708 NL80211_EXT_FEATURE_PROTECTED_TWT); 709 710 iwl_mvm_vendor_cmds_register(mvm); 711 712 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 713 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 714 715 ret = ieee80211_register_hw(mvm->hw); 716 if (ret) { 717 iwl_mvm_leds_exit(mvm); 718 } 719 720 return ret; 721 } 722 723 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 724 struct ieee80211_sta *sta) 725 { 726 if (likely(sta)) { 727 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 728 return; 729 } else { 730 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 731 return; 732 } 733 734 ieee80211_free_txskb(mvm->hw, skb); 735 } 736 737 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 738 struct ieee80211_tx_control *control, struct sk_buff *skb) 739 { 740 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 741 struct ieee80211_sta *sta = control->sta; 742 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 743 struct ieee80211_hdr *hdr = (void *)skb->data; 744 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 745 IEEE80211_TX_CTL_TX_OFFCHAN; 746 u32 link_id = u32_get_bits(info->control.flags, 747 IEEE80211_TX_CTRL_MLO_LINK); 748 struct ieee80211_sta *tmp_sta = sta; 749 750 if (iwl_mvm_is_radio_killed(mvm)) { 751 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 752 goto drop; 753 } 754 755 if (offchannel && 756 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 757 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 758 goto drop; 759 760 /* 761 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 762 * so we treat the others as broadcast 763 */ 764 if (ieee80211_is_mgmt(hdr->frame_control)) 765 sta = NULL; 766 767 /* If there is no sta, and it's not offchannel - send through AP */ 768 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 769 !offchannel) { 770 struct iwl_mvm_vif *mvmvif = 771 iwl_mvm_vif_from_mac80211(info->control.vif); 772 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 773 774 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 775 /* mac80211 holds rcu read lock */ 776 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 777 if (IS_ERR_OR_NULL(sta)) 778 goto drop; 779 } 780 } 781 782 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 783 !ieee80211_is_probe_resp(hdr->frame_control)) { 784 /* translate MLD addresses to LINK addresses */ 785 struct ieee80211_link_sta *link_sta = 786 rcu_dereference(tmp_sta->link[link_id]); 787 struct ieee80211_bss_conf *link_conf = 788 rcu_dereference(info->control.vif->link_conf[link_id]); 789 struct ieee80211_mgmt *mgmt; 790 791 if (WARN_ON(!link_sta || !link_conf)) 792 goto drop; 793 794 /* if sta is NULL, the frame is a management frame */ 795 mgmt = (void *)hdr; 796 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 797 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 798 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 799 } 800 801 iwl_mvm_tx_skb(mvm, skb, sta); 802 return; 803 drop: 804 ieee80211_free_txskb(hw, skb); 805 } 806 807 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 808 { 809 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 810 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 811 struct sk_buff *skb = NULL; 812 813 /* 814 * No need for threads to be pending here, they can leave the first 815 * taker all the work. 816 * 817 * mvmtxq->tx_request logic: 818 * 819 * If 0, no one is currently TXing, set to 1 to indicate current thread 820 * will now start TX and other threads should quit. 821 * 822 * If 1, another thread is currently TXing, set to 2 to indicate to 823 * that thread that there was another request. Since that request may 824 * have raced with the check whether the queue is empty, the TXing 825 * thread should check the queue's status one more time before leaving. 826 * This check is done in order to not leave any TX hanging in the queue 827 * until the next TX invocation (which may not even happen). 828 * 829 * If 2, another thread is currently TXing, and it will already double 830 * check the queue, so do nothing. 831 */ 832 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 833 return; 834 835 rcu_read_lock(); 836 do { 837 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 838 &mvmtxq->state) && 839 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 840 &mvmtxq->state) && 841 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 842 skb = ieee80211_tx_dequeue(hw, txq); 843 844 if (!skb) { 845 if (txq->sta) 846 IWL_DEBUG_TX(mvm, 847 "TXQ of sta %pM tid %d is now empty\n", 848 txq->sta->addr, 849 txq->tid); 850 break; 851 } 852 853 iwl_mvm_tx_skb(mvm, skb, txq->sta); 854 } 855 } while (atomic_dec_return(&mvmtxq->tx_request)); 856 rcu_read_unlock(); 857 } 858 859 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 860 struct ieee80211_txq *txq) 861 { 862 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 863 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 864 865 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 866 !txq->sta) { 867 iwl_mvm_mac_itxq_xmit(hw, txq); 868 return; 869 } 870 871 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 872 * to handle any packets we leave on the txq now 873 */ 874 875 spin_lock_bh(&mvm->add_stream_lock); 876 /* The list is being deleted only after the queue is fully allocated. */ 877 if (list_empty(&mvmtxq->list) && 878 /* recheck under lock */ 879 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 880 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 881 schedule_work(&mvm->add_stream_wk); 882 } 883 spin_unlock_bh(&mvm->add_stream_lock); 884 } 885 886 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 887 do { \ 888 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 889 break; \ 890 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 891 } while (0) 892 893 static void 894 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 895 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 896 enum ieee80211_ampdu_mlme_action action) 897 { 898 struct iwl_fw_dbg_trigger_tlv *trig; 899 struct iwl_fw_dbg_trigger_ba *ba_trig; 900 901 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 902 FW_DBG_TRIGGER_BA); 903 if (!trig) 904 return; 905 906 ba_trig = (void *)trig->data; 907 908 switch (action) { 909 case IEEE80211_AMPDU_TX_OPERATIONAL: { 910 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 911 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 912 913 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 914 "TX AGG START: MAC %pM tid %d ssn %d\n", 915 sta->addr, tid, tid_data->ssn); 916 break; 917 } 918 case IEEE80211_AMPDU_TX_STOP_CONT: 919 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 920 "TX AGG STOP: MAC %pM tid %d\n", 921 sta->addr, tid); 922 break; 923 case IEEE80211_AMPDU_RX_START: 924 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 925 "RX AGG START: MAC %pM tid %d ssn %d\n", 926 sta->addr, tid, rx_ba_ssn); 927 break; 928 case IEEE80211_AMPDU_RX_STOP: 929 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 930 "RX AGG STOP: MAC %pM tid %d\n", 931 sta->addr, tid); 932 break; 933 default: 934 break; 935 } 936 } 937 938 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 939 struct ieee80211_vif *vif, 940 struct ieee80211_ampdu_params *params) 941 { 942 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 943 int ret; 944 struct ieee80211_sta *sta = params->sta; 945 enum ieee80211_ampdu_mlme_action action = params->action; 946 u16 tid = params->tid; 947 u16 *ssn = ¶ms->ssn; 948 u16 buf_size = params->buf_size; 949 bool amsdu = params->amsdu; 950 u16 timeout = params->timeout; 951 952 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 953 sta->addr, tid, action); 954 955 if (!(mvm->nvm_data->sku_cap_11n_enable)) 956 return -EACCES; 957 958 mutex_lock(&mvm->mutex); 959 960 switch (action) { 961 case IEEE80211_AMPDU_RX_START: 962 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 963 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 964 struct iwl_mvm_vif *mvmvif; 965 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 966 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 967 968 mdata->opened_rx_ba_sessions = true; 969 mvmvif = iwl_mvm_vif_from_mac80211(vif); 970 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 971 } 972 if (!iwl_enable_rx_ampdu()) { 973 ret = -EINVAL; 974 break; 975 } 976 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 977 timeout); 978 break; 979 case IEEE80211_AMPDU_RX_STOP: 980 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 981 timeout); 982 break; 983 case IEEE80211_AMPDU_TX_START: 984 if (!iwl_enable_tx_ampdu()) { 985 ret = -EINVAL; 986 break; 987 } 988 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 989 break; 990 case IEEE80211_AMPDU_TX_STOP_CONT: 991 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 992 break; 993 case IEEE80211_AMPDU_TX_STOP_FLUSH: 994 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 995 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 996 break; 997 case IEEE80211_AMPDU_TX_OPERATIONAL: 998 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 999 buf_size, amsdu); 1000 break; 1001 default: 1002 WARN_ON_ONCE(1); 1003 ret = -EINVAL; 1004 break; 1005 } 1006 1007 if (!ret) { 1008 u16 rx_ba_ssn = 0; 1009 1010 if (action == IEEE80211_AMPDU_RX_START) 1011 rx_ba_ssn = *ssn; 1012 1013 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1014 rx_ba_ssn, action); 1015 } 1016 mutex_unlock(&mvm->mutex); 1017 1018 return ret; 1019 } 1020 1021 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1022 struct ieee80211_vif *vif) 1023 { 1024 struct iwl_mvm *mvm = data; 1025 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1026 struct iwl_probe_resp_data *probe_data; 1027 unsigned int link_id; 1028 1029 mvmvif->uploaded = false; 1030 1031 spin_lock_bh(&mvm->time_event_lock); 1032 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1033 spin_unlock_bh(&mvm->time_event_lock); 1034 1035 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1036 1037 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1038 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1039 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1040 mvmvif->link[link_id]->phy_ctxt = NULL; 1041 mvmvif->link[link_id]->active = 0; 1042 mvmvif->link[link_id]->igtk = NULL; 1043 } 1044 1045 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1046 lockdep_is_held(&mvm->mutex)); 1047 if (probe_data) 1048 kfree_rcu(probe_data, rcu_head); 1049 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1050 } 1051 1052 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1053 { 1054 iwl_mvm_stop_device(mvm); 1055 1056 mvm->cur_aid = 0; 1057 1058 mvm->scan_status = 0; 1059 mvm->ps_disabled = false; 1060 mvm->rfkill_safe_init_done = false; 1061 1062 /* just in case one was running */ 1063 iwl_mvm_cleanup_roc_te(mvm); 1064 ieee80211_remain_on_channel_expired(mvm->hw); 1065 1066 iwl_mvm_ftm_restart(mvm); 1067 1068 /* 1069 * cleanup all interfaces, even inactive ones, as some might have 1070 * gone down during the HW restart 1071 */ 1072 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1073 1074 mvm->p2p_device_vif = NULL; 1075 1076 iwl_mvm_reset_phy_ctxts(mvm); 1077 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1078 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1079 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1080 1081 ieee80211_wake_queues(mvm->hw); 1082 1083 mvm->rx_ba_sessions = 0; 1084 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1085 mvm->monitor_on = false; 1086 #ifdef CONFIG_IWLWIFI_DEBUGFS 1087 mvm->beacon_inject_active = false; 1088 #endif 1089 1090 /* keep statistics ticking */ 1091 iwl_mvm_accu_radio_stats(mvm); 1092 } 1093 1094 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1095 { 1096 int ret; 1097 1098 lockdep_assert_held(&mvm->mutex); 1099 1100 ret = iwl_mvm_mei_get_ownership(mvm); 1101 if (ret) 1102 return ret; 1103 1104 if (mvm->mei_nvm_data) { 1105 /* We got the NIC, we can now free the MEI NVM data */ 1106 kfree(mvm->mei_nvm_data); 1107 mvm->mei_nvm_data = NULL; 1108 1109 /* 1110 * We can't free the nvm_data we allocated based on the SAP 1111 * data because we registered to cfg80211 with the channels 1112 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1113 * just in order to be able free it later. 1114 * NULLify nvm_data so that we will read the NVM from the 1115 * firmware this time. 1116 */ 1117 mvm->temp_nvm_data = mvm->nvm_data; 1118 mvm->nvm_data = NULL; 1119 } 1120 1121 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1122 /* 1123 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1124 * so later code will - from now on - see that we're doing it. 1125 */ 1126 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1127 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1128 /* Clean up some internal and mac80211 state on restart */ 1129 iwl_mvm_restart_cleanup(mvm); 1130 } 1131 ret = iwl_mvm_up(mvm); 1132 1133 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1134 NULL); 1135 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1136 NULL); 1137 1138 mvm->last_reset_or_resume_time_jiffies = jiffies; 1139 1140 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1141 /* Something went wrong - we need to finish some cleanup 1142 * that normally iwl_mvm_mac_restart_complete() below 1143 * would do. 1144 */ 1145 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1146 } 1147 1148 return ret; 1149 } 1150 1151 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1152 { 1153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1154 int ret; 1155 int retry, max_retry = 0; 1156 1157 mutex_lock(&mvm->mutex); 1158 1159 /* we are starting the mac not in error flow, and restart is enabled */ 1160 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1161 iwlwifi_mod_params.fw_restart) { 1162 max_retry = IWL_MAX_INIT_RETRY; 1163 /* 1164 * This will prevent mac80211 recovery flows to trigger during 1165 * init failures 1166 */ 1167 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1168 } 1169 1170 for (retry = 0; retry <= max_retry; retry++) { 1171 ret = __iwl_mvm_mac_start(mvm); 1172 if (!ret) 1173 break; 1174 1175 /* 1176 * In PLDR sync PCI re-enumeration is needed. no point to retry 1177 * mac start before that. 1178 */ 1179 if (mvm->pldr_sync) { 1180 iwl_mei_alive_notif(false); 1181 iwl_trans_pcie_remove(mvm->trans, true); 1182 break; 1183 } 1184 1185 IWL_ERR(mvm, "mac start retry %d\n", retry); 1186 } 1187 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1188 1189 mutex_unlock(&mvm->mutex); 1190 1191 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1192 1193 return ret; 1194 } 1195 1196 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1197 { 1198 int ret; 1199 1200 mutex_lock(&mvm->mutex); 1201 1202 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1203 1204 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1205 if (ret) 1206 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1207 ret); 1208 1209 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1210 1211 /* 1212 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1213 * of packets the FW sent out, so we must reconnect. 1214 */ 1215 iwl_mvm_teardown_tdls_peers(mvm); 1216 1217 mutex_unlock(&mvm->mutex); 1218 } 1219 1220 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1221 enum ieee80211_reconfig_type reconfig_type) 1222 { 1223 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1224 1225 switch (reconfig_type) { 1226 case IEEE80211_RECONFIG_TYPE_RESTART: 1227 iwl_mvm_restart_complete(mvm); 1228 break; 1229 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1230 break; 1231 } 1232 } 1233 1234 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1235 { 1236 lockdep_assert_held(&mvm->mutex); 1237 1238 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1239 1240 /* firmware counters are obviously reset now, but we shouldn't 1241 * partially track so also clear the fw_reset_accu counters. 1242 */ 1243 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1244 1245 /* async_handlers_wk is now blocked */ 1246 1247 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1248 iwl_mvm_rm_aux_sta(mvm); 1249 1250 iwl_mvm_stop_device(mvm); 1251 1252 iwl_mvm_async_handlers_purge(mvm); 1253 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1254 1255 /* 1256 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1257 * hw (as restart_complete() won't be called in this case) and mac80211 1258 * won't execute the restart. 1259 * But make sure to cleanup interfaces that have gone down before/during 1260 * HW restart was requested. 1261 */ 1262 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1263 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1264 &mvm->status)) 1265 ieee80211_iterate_interfaces(mvm->hw, 0, 1266 iwl_mvm_cleanup_iterator, mvm); 1267 1268 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1269 * make sure there's nothing left there and warn if any is found. 1270 */ 1271 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1272 int i; 1273 1274 for (i = 0; i < mvm->max_scans; i++) { 1275 if (WARN_ONCE(mvm->scan_uid_status[i], 1276 "UMAC scan UID %d status was not cleaned\n", 1277 i)) 1278 mvm->scan_uid_status[i] = 0; 1279 } 1280 } 1281 } 1282 1283 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1284 { 1285 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1286 1287 flush_work(&mvm->async_handlers_wk); 1288 flush_work(&mvm->add_stream_wk); 1289 1290 /* 1291 * Lock and clear the firmware running bit here already, so that 1292 * new commands coming in elsewhere, e.g. from debugfs, will not 1293 * be able to proceed. This is important here because one of those 1294 * debugfs files causes the firmware dump to be triggered, and if we 1295 * don't stop debugfs accesses before canceling that it could be 1296 * retriggered after we flush it but before we've cleared the bit. 1297 */ 1298 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1299 1300 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1301 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1302 1303 /* 1304 * The work item could be running or queued if the 1305 * ROC time event stops just as we get here. 1306 */ 1307 flush_work(&mvm->roc_done_wk); 1308 1309 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1310 1311 mutex_lock(&mvm->mutex); 1312 __iwl_mvm_mac_stop(mvm); 1313 mutex_unlock(&mvm->mutex); 1314 1315 /* 1316 * The worker might have been waiting for the mutex, let it run and 1317 * discover that its list is now empty. 1318 */ 1319 cancel_work_sync(&mvm->async_handlers_wk); 1320 } 1321 1322 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1323 { 1324 u16 i; 1325 1326 lockdep_assert_held(&mvm->mutex); 1327 1328 for (i = 0; i < NUM_PHY_CTX; i++) 1329 if (!mvm->phy_ctxts[i].ref) 1330 return &mvm->phy_ctxts[i]; 1331 1332 IWL_ERR(mvm, "No available PHY context\n"); 1333 return NULL; 1334 } 1335 1336 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1337 s16 tx_power) 1338 { 1339 u32 cmd_id = REDUCE_TX_POWER_CMD; 1340 int len; 1341 struct iwl_dev_tx_power_cmd cmd = { 1342 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1343 .common.mac_context_id = 1344 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1345 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1346 }; 1347 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1348 IWL_FW_CMD_VER_UNKNOWN); 1349 1350 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1351 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1352 1353 if (cmd_ver == 7) 1354 len = sizeof(cmd.v7); 1355 else if (cmd_ver == 6) 1356 len = sizeof(cmd.v6); 1357 else if (fw_has_api(&mvm->fw->ucode_capa, 1358 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1359 len = sizeof(cmd.v5); 1360 else if (fw_has_capa(&mvm->fw->ucode_capa, 1361 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1362 len = sizeof(cmd.v4); 1363 else 1364 len = sizeof(cmd.v3); 1365 1366 /* all structs have the same common part, add it */ 1367 len += sizeof(cmd.common); 1368 1369 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1370 } 1371 1372 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1373 struct ieee80211_vif *vif) 1374 { 1375 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1376 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1377 int ret; 1378 1379 mutex_lock(&mvm->mutex); 1380 1381 if (vif->type == NL80211_IFTYPE_STATION) { 1382 struct iwl_mvm_sta *mvmsta; 1383 1384 mvmvif->csa_bcn_pending = false; 1385 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1386 mvmvif->deflink.ap_sta_id); 1387 1388 if (WARN_ON(!mvmsta)) { 1389 ret = -EIO; 1390 goto out_unlock; 1391 } 1392 1393 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1394 if (mvm->mld_api_is_used) 1395 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1396 else 1397 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1398 1399 if (!fw_has_capa(&mvm->fw->ucode_capa, 1400 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1401 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1402 if (ret) 1403 goto out_unlock; 1404 1405 iwl_mvm_stop_session_protection(mvm, vif); 1406 } 1407 } 1408 1409 mvmvif->ps_disabled = false; 1410 1411 ret = iwl_mvm_power_update_ps(mvm); 1412 1413 out_unlock: 1414 if (mvmvif->csa_failed) 1415 ret = -EIO; 1416 mutex_unlock(&mvm->mutex); 1417 1418 return ret; 1419 } 1420 1421 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1422 struct ieee80211_vif *vif) 1423 { 1424 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1425 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1426 struct iwl_chan_switch_te_cmd cmd = { 1427 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1428 mvmvif->color)), 1429 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1430 }; 1431 1432 /* 1433 * In the new flow since FW is in charge of the timing, 1434 * if driver has canceled the channel switch he will receive the 1435 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1436 */ 1437 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1438 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1439 return; 1440 1441 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1442 1443 mutex_lock(&mvm->mutex); 1444 if (!fw_has_capa(&mvm->fw->ucode_capa, 1445 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1446 iwl_mvm_remove_csa_period(mvm, vif); 1447 else 1448 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1449 WIDE_ID(MAC_CONF_GROUP, 1450 CHANNEL_SWITCH_TIME_EVENT_CMD), 1451 0, sizeof(cmd), &cmd)); 1452 mvmvif->csa_failed = true; 1453 mutex_unlock(&mvm->mutex); 1454 1455 iwl_mvm_post_channel_switch(hw, vif); 1456 } 1457 1458 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1459 { 1460 struct iwl_mvm_vif *mvmvif; 1461 struct ieee80211_vif *vif; 1462 1463 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1464 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1465 1466 /* Trigger disconnect (should clear the CSA state) */ 1467 ieee80211_chswitch_done(vif, false); 1468 } 1469 1470 static u8 1471 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1472 { 1473 int data_start; 1474 int control_start; 1475 int bw; 1476 1477 if (chandef->width == NL80211_CHAN_WIDTH_320) 1478 bw = 320; 1479 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1480 bw = 160; 1481 else 1482 return 0; 1483 1484 /* data is bw wide so the start is half the width */ 1485 data_start = chandef->center_freq1 - bw / 2; 1486 /* control is 20Mhz width */ 1487 control_start = chandef->chan->center_freq - 10; 1488 1489 return (control_start - data_start) / 80; 1490 } 1491 1492 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1493 struct ieee80211_vif *vif) 1494 { 1495 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1496 int ret; 1497 1498 lockdep_assert_held(&mvm->mutex); 1499 1500 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1501 if (ret) { 1502 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1503 return ret; 1504 } 1505 1506 /* Only queue for this station is the mcast queue, 1507 * which shouldn't be in TFD mask anyway 1508 */ 1509 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1510 vif->type, 1511 IWL_STA_MULTICAST); 1512 } 1513 1514 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1515 struct ieee80211_vif *vif) 1516 { 1517 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1518 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1519 int ret; 1520 1521 mutex_lock(&mvm->mutex); 1522 1523 mvmvif->mvm = mvm; 1524 1525 /* the first link always points to the default one */ 1526 mvmvif->link[0] = &mvmvif->deflink; 1527 1528 /* 1529 * Not much to do here. The stack will not allow interface 1530 * types or combinations that we didn't advertise, so we 1531 * don't really have to check the types. 1532 */ 1533 1534 /* make sure that beacon statistics don't go backwards with FW reset */ 1535 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1536 mvmvif->deflink.beacon_stats.accu_num_beacons += 1537 mvmvif->deflink.beacon_stats.num_beacons; 1538 1539 /* Allocate resources for the MAC context, and add it to the fw */ 1540 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1541 if (ret) 1542 goto out; 1543 1544 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1545 1546 /* Currently not much to do for NAN */ 1547 if (vif->type == NL80211_IFTYPE_NAN) { 1548 ret = 0; 1549 goto out; 1550 } 1551 1552 /* 1553 * The AP binding flow can be done only after the beacon 1554 * template is configured (which happens only in the mac80211 1555 * start_ap() flow), and adding the broadcast station can happen 1556 * only after the binding. 1557 * In addition, since modifying the MAC before adding a bcast 1558 * station is not allowed by the FW, delay the adding of MAC context to 1559 * the point where we can also add the bcast station. 1560 * In short: there's not much we can do at this point, other than 1561 * allocating resources :) 1562 */ 1563 if (vif->type == NL80211_IFTYPE_AP || 1564 vif->type == NL80211_IFTYPE_ADHOC) { 1565 iwl_mvm_vif_dbgfs_register(mvm, vif); 1566 ret = 0; 1567 goto out; 1568 } 1569 1570 mvmvif->features |= hw->netdev_features; 1571 1572 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1573 if (ret) 1574 goto out_unlock; 1575 1576 ret = iwl_mvm_power_update_mac(mvm); 1577 if (ret) 1578 goto out_remove_mac; 1579 1580 /* beacon filtering */ 1581 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1582 if (ret) 1583 goto out_remove_mac; 1584 1585 if (!mvm->bf_allowed_vif && 1586 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1587 mvm->bf_allowed_vif = mvmvif; 1588 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1589 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1590 } 1591 1592 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1593 mvm->p2p_device_vif = vif; 1594 1595 iwl_mvm_tcm_add_vif(mvm, vif); 1596 INIT_DELAYED_WORK(&mvmvif->csa_work, 1597 iwl_mvm_channel_switch_disconnect_wk); 1598 1599 if (vif->type == NL80211_IFTYPE_MONITOR) { 1600 mvm->monitor_on = true; 1601 mvm->monitor_p80 = 1602 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1603 } 1604 1605 iwl_mvm_vif_dbgfs_register(mvm, vif); 1606 1607 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1608 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1609 !mvm->csme_vif && mvm->mei_registered) { 1610 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1611 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1612 mvm->csme_vif = vif; 1613 } 1614 1615 out: 1616 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1617 vif->type == NL80211_IFTYPE_ADHOC)) 1618 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1619 1620 goto out_unlock; 1621 1622 if (mvm->bf_allowed_vif == mvmvif) { 1623 mvm->bf_allowed_vif = NULL; 1624 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1625 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1626 } 1627 out_remove_mac: 1628 mvmvif->deflink.phy_ctxt = NULL; 1629 iwl_mvm_mac_ctxt_remove(mvm, vif); 1630 out_unlock: 1631 mutex_unlock(&mvm->mutex); 1632 1633 return ret; 1634 } 1635 1636 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1637 struct ieee80211_vif *vif) 1638 { 1639 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1640 /* 1641 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1642 * We assume here that all the packets sent to the OFFCHANNEL 1643 * queue are sent in ROC session. 1644 */ 1645 flush_work(&mvm->roc_done_wk); 1646 } 1647 } 1648 1649 /* This function is doing the common part of removing the interface for 1650 * both - MLD and non-MLD modes. Returns true if removing the interface 1651 * is done 1652 */ 1653 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1654 struct ieee80211_vif *vif) 1655 { 1656 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1657 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1658 struct iwl_probe_resp_data *probe_data; 1659 1660 iwl_mvm_prepare_mac_removal(mvm, vif); 1661 1662 if (!(vif->type == NL80211_IFTYPE_AP || 1663 vif->type == NL80211_IFTYPE_ADHOC)) 1664 iwl_mvm_tcm_rm_vif(mvm, vif); 1665 1666 mutex_lock(&mvm->mutex); 1667 1668 if (vif == mvm->csme_vif) { 1669 iwl_mei_set_netdev(NULL); 1670 mvm->csme_vif = NULL; 1671 } 1672 1673 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1674 lockdep_is_held(&mvm->mutex)); 1675 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1676 if (probe_data) 1677 kfree_rcu(probe_data, rcu_head); 1678 1679 if (mvm->bf_allowed_vif == mvmvif) { 1680 mvm->bf_allowed_vif = NULL; 1681 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1682 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1683 } 1684 1685 if (vif->bss_conf.ftm_responder) 1686 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1687 1688 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1689 1690 /* 1691 * For AP/GO interface, the tear down of the resources allocated to the 1692 * interface is be handled as part of the stop_ap flow. 1693 */ 1694 if (vif->type == NL80211_IFTYPE_AP || 1695 vif->type == NL80211_IFTYPE_ADHOC) { 1696 #ifdef CONFIG_NL80211_TESTMODE 1697 if (vif == mvm->noa_vif) { 1698 mvm->noa_vif = NULL; 1699 mvm->noa_duration = 0; 1700 } 1701 #endif 1702 return true; 1703 } 1704 1705 iwl_mvm_power_update_mac(mvm); 1706 return false; 1707 } 1708 1709 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1710 struct ieee80211_vif *vif) 1711 { 1712 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1713 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1714 1715 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1716 goto out; 1717 1718 /* Before the interface removal, mac80211 would cancel the ROC, and the 1719 * ROC worker would be scheduled if needed. The worker would be flushed 1720 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1721 * binding etc. so nothing needs to be done here. 1722 */ 1723 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1724 if (mvmvif->deflink.phy_ctxt) { 1725 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1726 mvmvif->deflink.phy_ctxt = NULL; 1727 } 1728 mvm->p2p_device_vif = NULL; 1729 } 1730 1731 iwl_mvm_mac_ctxt_remove(mvm, vif); 1732 1733 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1734 1735 if (vif->type == NL80211_IFTYPE_MONITOR) 1736 mvm->monitor_on = false; 1737 1738 out: 1739 if (vif->type == NL80211_IFTYPE_AP || 1740 vif->type == NL80211_IFTYPE_ADHOC) { 1741 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1742 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1743 } 1744 1745 mutex_unlock(&mvm->mutex); 1746 } 1747 1748 struct iwl_mvm_mc_iter_data { 1749 struct iwl_mvm *mvm; 1750 int port_id; 1751 }; 1752 1753 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1754 struct ieee80211_vif *vif) 1755 { 1756 struct iwl_mvm_mc_iter_data *data = _data; 1757 struct iwl_mvm *mvm = data->mvm; 1758 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1759 struct iwl_host_cmd hcmd = { 1760 .id = MCAST_FILTER_CMD, 1761 .flags = CMD_ASYNC, 1762 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1763 }; 1764 int ret, len; 1765 1766 /* if we don't have free ports, mcast frames will be dropped */ 1767 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1768 return; 1769 1770 if (vif->type != NL80211_IFTYPE_STATION || 1771 !vif->cfg.assoc) 1772 return; 1773 1774 cmd->port_id = data->port_id++; 1775 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1776 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1777 1778 hcmd.len[0] = len; 1779 hcmd.data[0] = cmd; 1780 1781 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1782 if (ret) 1783 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1784 } 1785 1786 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1787 { 1788 struct iwl_mvm_mc_iter_data iter_data = { 1789 .mvm = mvm, 1790 }; 1791 int ret; 1792 1793 lockdep_assert_held(&mvm->mutex); 1794 1795 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1796 return; 1797 1798 ieee80211_iterate_active_interfaces_atomic( 1799 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1800 iwl_mvm_mc_iface_iterator, &iter_data); 1801 1802 /* 1803 * Send a (synchronous) ech command so that we wait for the 1804 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1805 * the interface iterator. Otherwise, we might get here over 1806 * and over again (by userspace just sending a lot of these) 1807 * and the CPU can send them faster than the firmware can 1808 * process them. 1809 * Note that the CPU is still faster - but with this we'll 1810 * actually send fewer commands overall because the CPU will 1811 * not schedule the work in mac80211 as frequently if it's 1812 * still running when rescheduled (possibly multiple times). 1813 */ 1814 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1815 if (ret) 1816 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1817 } 1818 1819 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1820 struct netdev_hw_addr_list *mc_list) 1821 { 1822 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1823 struct iwl_mcast_filter_cmd *cmd; 1824 struct netdev_hw_addr *addr; 1825 int addr_count; 1826 bool pass_all; 1827 int len; 1828 1829 addr_count = netdev_hw_addr_list_count(mc_list); 1830 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1831 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1832 if (pass_all) 1833 addr_count = 0; 1834 1835 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1836 cmd = kzalloc(len, GFP_ATOMIC); 1837 if (!cmd) 1838 return 0; 1839 1840 if (pass_all) { 1841 cmd->pass_all = 1; 1842 return (u64)(unsigned long)cmd; 1843 } 1844 1845 netdev_hw_addr_list_for_each(addr, mc_list) { 1846 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1847 cmd->count, addr->addr); 1848 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1849 addr->addr, ETH_ALEN); 1850 cmd->count++; 1851 } 1852 1853 return (u64)(unsigned long)cmd; 1854 } 1855 1856 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1857 unsigned int changed_flags, 1858 unsigned int *total_flags, u64 multicast) 1859 { 1860 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1861 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1862 1863 mutex_lock(&mvm->mutex); 1864 1865 /* replace previous configuration */ 1866 kfree(mvm->mcast_filter_cmd); 1867 mvm->mcast_filter_cmd = cmd; 1868 1869 if (!cmd) 1870 goto out; 1871 1872 if (changed_flags & FIF_ALLMULTI) 1873 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1874 1875 if (cmd->pass_all) 1876 cmd->count = 0; 1877 1878 iwl_mvm_recalc_multicast(mvm); 1879 out: 1880 mutex_unlock(&mvm->mutex); 1881 *total_flags = 0; 1882 } 1883 1884 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1885 struct ieee80211_vif *vif, 1886 unsigned int filter_flags, 1887 unsigned int changed_flags) 1888 { 1889 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1890 1891 /* We support only filter for probe requests */ 1892 if (!(changed_flags & FIF_PROBE_REQ)) 1893 return; 1894 1895 /* Supported only for p2p client interfaces */ 1896 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1897 !vif->p2p) 1898 return; 1899 1900 mutex_lock(&mvm->mutex); 1901 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1902 mutex_unlock(&mvm->mutex); 1903 } 1904 1905 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1906 { 1907 struct iwl_mu_group_mgmt_cmd cmd = {}; 1908 1909 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1910 WLAN_MEMBERSHIP_LEN); 1911 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1912 WLAN_USER_POSITION_LEN); 1913 1914 return iwl_mvm_send_cmd_pdu(mvm, 1915 WIDE_ID(DATA_PATH_GROUP, 1916 UPDATE_MU_GROUPS_CMD), 1917 0, sizeof(cmd), &cmd); 1918 } 1919 1920 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1921 struct ieee80211_vif *vif) 1922 { 1923 if (vif->bss_conf.mu_mimo_owner) { 1924 struct iwl_mu_group_mgmt_notif *notif = _data; 1925 1926 /* 1927 * MU-MIMO Group Id action frame is little endian. We treat 1928 * the data received from firmware as if it came from the 1929 * action frame, so no conversion is needed. 1930 */ 1931 ieee80211_update_mu_groups(vif, 0, 1932 (u8 *)¬if->membership_status, 1933 (u8 *)¬if->user_position); 1934 } 1935 } 1936 1937 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1938 struct iwl_rx_cmd_buffer *rxb) 1939 { 1940 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1941 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1942 1943 ieee80211_iterate_active_interfaces_atomic( 1944 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1945 iwl_mvm_mu_mimo_iface_iterator, notif); 1946 } 1947 1948 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1949 { 1950 u8 byte_num = ppe_pos_bit / 8; 1951 u8 bit_num = ppe_pos_bit % 8; 1952 u8 residue_bits; 1953 u8 res; 1954 1955 if (bit_num <= 5) 1956 return (ppe[byte_num] >> bit_num) & 1957 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1958 1959 /* 1960 * If bit_num > 5, we have to combine bits with next byte. 1961 * Calculate how many bits we need to take from current byte (called 1962 * here "residue_bits"), and add them to bits from next byte. 1963 */ 1964 1965 residue_bits = 8 - bit_num; 1966 1967 res = (ppe[byte_num + 1] & 1968 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1969 residue_bits; 1970 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1971 1972 return res; 1973 } 1974 1975 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1976 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1977 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 1978 bool inheritance) 1979 { 1980 int i; 1981 1982 /* 1983 * FW currently supports only nss == MAX_HE_SUPP_NSS 1984 * 1985 * If nss > MAX: we can ignore values we don't support 1986 * If nss < MAX: we can set zeros in other streams 1987 */ 1988 if (nss > MAX_HE_SUPP_NSS) { 1989 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 1990 MAX_HE_SUPP_NSS); 1991 nss = MAX_HE_SUPP_NSS; 1992 } 1993 1994 for (i = 0; i < nss; i++) { 1995 u8 ru_index_tmp = ru_index_bitmap << 1; 1996 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 1997 u8 bw; 1998 1999 for (bw = 0; 2000 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2001 bw++) { 2002 ru_index_tmp >>= 1; 2003 2004 /* 2005 * According to the 11be spec, if for a specific BW the PPE Thresholds 2006 * isn't present - it should inherit the thresholds from the last 2007 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2008 * this inheritance - continue in this case 2009 */ 2010 if (!(ru_index_tmp & 1)) { 2011 if (inheritance) 2012 goto set_thresholds; 2013 else 2014 continue; 2015 } 2016 2017 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2018 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2019 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2020 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2021 2022 set_thresholds: 2023 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2024 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2025 } 2026 } 2027 } 2028 2029 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2030 struct ieee80211_link_sta *link_sta, 2031 struct iwl_he_pkt_ext_v2 *pkt_ext, 2032 bool inheritance) 2033 { 2034 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2035 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2036 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2037 u8 ru_index_bitmap = 2038 u8_get_bits(*ppe, 2039 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2040 /* Starting after PPE header */ 2041 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2042 2043 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2044 inheritance); 2045 } 2046 2047 static int 2048 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2049 u8 nominal_padding) 2050 { 2051 int low_th = -1; 2052 int high_th = -1; 2053 int i; 2054 2055 /* all the macros are the same for EHT and HE */ 2056 switch (nominal_padding) { 2057 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2058 low_th = IWL_HE_PKT_EXT_NONE; 2059 high_th = IWL_HE_PKT_EXT_NONE; 2060 break; 2061 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2062 low_th = IWL_HE_PKT_EXT_BPSK; 2063 high_th = IWL_HE_PKT_EXT_NONE; 2064 break; 2065 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2066 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2067 low_th = IWL_HE_PKT_EXT_NONE; 2068 high_th = IWL_HE_PKT_EXT_BPSK; 2069 break; 2070 } 2071 2072 if (low_th < 0 || high_th < 0) 2073 return -EINVAL; 2074 2075 /* Set the PPE thresholds accordingly */ 2076 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2077 u8 bw; 2078 2079 for (bw = 0; 2080 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2081 bw++) { 2082 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2083 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2084 } 2085 } 2086 2087 return 0; 2088 } 2089 2090 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2091 u8 nominal_padding) 2092 { 2093 int i; 2094 2095 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2096 u8 bw; 2097 2098 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2099 bw++) { 2100 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2101 2102 if (nominal_padding > 2103 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2104 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2105 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2106 else if (nominal_padding == 2107 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2108 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2109 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2110 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2111 } 2112 } 2113 } 2114 2115 /* Set the pkt_ext field according to PPE Thresholds element */ 2116 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2117 struct ieee80211_link_sta *link_sta, 2118 struct iwl_he_pkt_ext_v2 *pkt_ext) 2119 { 2120 u8 nominal_padding; 2121 int i, ret = 0; 2122 2123 if (WARN_ON(!link_sta)) 2124 return -EINVAL; 2125 2126 /* Initialize the PPE thresholds to "None" (7), as described in Table 2127 * 9-262ac of 80211.ax/D3.0. 2128 */ 2129 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2130 sizeof(struct iwl_he_pkt_ext_v2)); 2131 2132 if (link_sta->eht_cap.has_eht) { 2133 nominal_padding = 2134 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2135 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2136 2137 /* If PPE Thresholds exists, parse them into a FW-familiar 2138 * format. 2139 */ 2140 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2141 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2142 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2143 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2144 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2145 u8 ru_index_bitmap = 2146 u16_get_bits(*ppe, 2147 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2148 /* Starting after PPE header */ 2149 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2150 2151 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2152 ppe, ppe_pos_bit, true); 2153 /* EHT PPE Thresholds doesn't exist - set the API according to 2154 * HE PPE Tresholds 2155 */ 2156 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2157 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2158 /* Even though HE Capabilities IE doesn't contain PPE 2159 * Thresholds for BW 320Mhz, thresholds for this BW will 2160 * be filled in with the same values as 160Mhz, due to 2161 * the inheritance, as required. 2162 */ 2163 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2164 true); 2165 2166 /* According to the requirements, for MCSs 12-13 the 2167 * maximum value between HE PPE Threshold and Common 2168 * Nominal Packet Padding needs to be taken 2169 */ 2170 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2171 2172 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2173 * take the Thresholds from Common Nominal Packet Padding field 2174 */ 2175 } else { 2176 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2177 nominal_padding); 2178 } 2179 } else if (link_sta->he_cap.has_he) { 2180 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2181 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2182 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2183 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2184 false); 2185 /* PPE Thresholds doesn't exist - set the API PPE values 2186 * according to Common Nominal Packet Padding field. 2187 */ 2188 } else { 2189 nominal_padding = 2190 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2191 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2192 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2193 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2194 nominal_padding); 2195 } 2196 } 2197 2198 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2199 int bw; 2200 2201 for (bw = 0; 2202 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2203 bw++) { 2204 u8 *qam_th = 2205 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2206 2207 IWL_DEBUG_HT(mvm, 2208 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2209 i, bw, qam_th[0], qam_th[1]); 2210 } 2211 } 2212 return ret; 2213 } 2214 2215 /* 2216 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2217 * is enabled or not 2218 */ 2219 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2220 const struct iwl_mvm_vif_link_info *link_info, 2221 struct iwl_he_backoff_conf *trig_based_txf) 2222 { 2223 int i; 2224 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2225 bool mu_edca_enabled = true; 2226 2227 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2228 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2229 &link_info->queue_params[i].mu_edca_param_rec; 2230 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2231 2232 if (!link_info->queue_params[i].mu_edca) { 2233 mu_edca_enabled = false; 2234 break; 2235 } 2236 2237 trig_based_txf[ac].cwmin = 2238 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2239 trig_based_txf[ac].cwmax = 2240 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2241 trig_based_txf[ac].aifsn = 2242 cpu_to_le16(mu_edca->aifsn & 0xf); 2243 trig_based_txf[ac].mu_time = 2244 cpu_to_le16(mu_edca->mu_edca_timer); 2245 } 2246 2247 return mu_edca_enabled; 2248 } 2249 2250 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2251 { 2252 const struct ieee80211_supported_band *sband; 2253 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2254 2255 /* This capability is the same for all bands, 2256 * so take it from one of them. 2257 */ 2258 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2259 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2260 2261 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2262 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2263 } 2264 2265 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2266 struct ieee80211_link_sta *link_sta) 2267 { 2268 u8 *mac_cap_info = 2269 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2270 __le32 htc_flags = 0; 2271 2272 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2273 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2274 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2275 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2276 u8 link_adap = 2277 ((mac_cap_info[2] & 2278 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2279 (mac_cap_info[1] & 2280 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2281 2282 if (link_adap == 2) 2283 htc_flags |= 2284 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2285 else if (link_adap == 3) 2286 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2287 } 2288 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2289 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2290 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2291 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2292 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2293 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2294 2295 return htc_flags; 2296 } 2297 2298 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2299 struct ieee80211_vif *vif, u8 sta_id) 2300 { 2301 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2302 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2303 .sta_id = sta_id, 2304 .tid_limit = IWL_MAX_TID_COUNT, 2305 .bss_color = vif->bss_conf.he_bss_color.color, 2306 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2307 .frame_time_rts_th = 2308 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2309 }; 2310 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2311 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2312 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2313 int size; 2314 struct ieee80211_sta *sta; 2315 u32 flags; 2316 int i; 2317 void *cmd; 2318 2319 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2320 ver = 1; 2321 2322 switch (ver) { 2323 case 1: 2324 /* same layout as v2 except some data at the end */ 2325 cmd = &sta_ctxt_cmd_v2; 2326 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2327 break; 2328 case 2: 2329 cmd = &sta_ctxt_cmd_v2; 2330 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2331 break; 2332 case 3: 2333 cmd = &sta_ctxt_cmd; 2334 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2335 break; 2336 default: 2337 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2338 return; 2339 } 2340 2341 rcu_read_lock(); 2342 2343 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2344 if (IS_ERR_OR_NULL(sta)) { 2345 rcu_read_unlock(); 2346 WARN(1, "Can't find STA to configure HE\n"); 2347 return; 2348 } 2349 2350 if (!sta->deflink.he_cap.has_he) { 2351 rcu_read_unlock(); 2352 return; 2353 } 2354 2355 flags = 0; 2356 2357 /* Block 26-tone RU OFDMA transmissions */ 2358 if (mvmvif->deflink.he_ru_2mhz_block) 2359 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2360 2361 /* HTC flags */ 2362 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2363 2364 /* PPE Thresholds */ 2365 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2366 flags |= STA_CTXT_HE_PACKET_EXT; 2367 2368 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2369 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2370 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2371 2372 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2373 IEEE80211_HE_MAC_CAP2_ACK_EN) 2374 flags |= STA_CTXT_HE_ACK_ENABLED; 2375 2376 rcu_read_unlock(); 2377 2378 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2379 &sta_ctxt_cmd.trig_based_txf[0])) 2380 flags |= STA_CTXT_HE_MU_EDCA_CW; 2381 2382 if (vif->bss_conf.uora_exists) { 2383 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2384 2385 sta_ctxt_cmd.rand_alloc_ecwmin = 2386 vif->bss_conf.uora_ocw_range & 0x7; 2387 sta_ctxt_cmd.rand_alloc_ecwmax = 2388 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2389 } 2390 2391 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2392 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2393 2394 if (vif->bss_conf.nontransmitted) { 2395 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2396 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2397 vif->bss_conf.transmitter_bssid); 2398 sta_ctxt_cmd.max_bssid_indicator = 2399 vif->bss_conf.bssid_indicator; 2400 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2401 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2402 sta_ctxt_cmd.profile_periodicity = 2403 vif->bss_conf.profile_periodicity; 2404 } 2405 2406 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2407 2408 if (ver < 3) { 2409 /* fields before pkt_ext */ 2410 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2411 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2412 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2413 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2414 2415 /* pkt_ext */ 2416 for (i = 0; 2417 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2418 i++) { 2419 u8 bw; 2420 2421 for (bw = 0; 2422 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2423 bw++) { 2424 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2425 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2426 2427 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2428 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2429 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2430 } 2431 } 2432 2433 /* fields after pkt_ext */ 2434 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2435 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2436 sizeof(sta_ctxt_cmd_v2) - 2437 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2438 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2439 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2440 (u8 *)&sta_ctxt_cmd + 2441 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2442 sizeof(sta_ctxt_cmd) - 2443 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2444 sta_ctxt_cmd_v2.reserved3 = 0; 2445 } 2446 2447 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2448 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2449 } 2450 2451 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2452 u32 duration_override) 2453 { 2454 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2455 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2456 2457 if (duration_override > duration) 2458 duration = duration_override; 2459 2460 /* Try really hard to protect the session and hear a beacon 2461 * The new session protection command allows us to protect the 2462 * session for a much longer time since the firmware will internally 2463 * create two events: a 300TU one with a very high priority that 2464 * won't be fragmented which should be enough for 99% of the cases, 2465 * and another one (which we configure here to be 900TU long) which 2466 * will have a slightly lower priority, but more importantly, can be 2467 * fragmented so that it'll allow other activities to run. 2468 */ 2469 if (fw_has_capa(&mvm->fw->ucode_capa, 2470 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2471 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2472 min_duration, false); 2473 else 2474 iwl_mvm_protect_session(mvm, vif, duration, 2475 min_duration, 500, false); 2476 } 2477 2478 /* Handle association common part to MLD and non-MLD modes */ 2479 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2480 struct ieee80211_vif *vif, 2481 u64 changes) 2482 { 2483 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2484 int ret; 2485 2486 /* The firmware tracks the MU-MIMO group on its own. 2487 * However, on HW restart we should restore this data. 2488 */ 2489 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2490 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2491 ret = iwl_mvm_update_mu_groups(mvm, vif); 2492 if (ret) 2493 IWL_ERR(mvm, 2494 "failed to update VHT MU_MIMO groups\n"); 2495 } 2496 2497 iwl_mvm_recalc_multicast(mvm); 2498 2499 /* reset rssi values */ 2500 mvmvif->bf_data.ave_beacon_signal = 0; 2501 2502 iwl_mvm_bt_coex_vif_change(mvm); 2503 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2504 IEEE80211_SMPS_AUTOMATIC); 2505 if (fw_has_capa(&mvm->fw->ucode_capa, 2506 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2507 iwl_mvm_config_scan(mvm); 2508 } 2509 2510 /* Execute the common part for MLD and non-MLD modes */ 2511 void 2512 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2513 struct ieee80211_vif *vif, 2514 struct ieee80211_bss_conf *link_conf, 2515 u64 changes) 2516 { 2517 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2518 int ret; 2519 2520 if (changes & BSS_CHANGED_BEACON_INFO) { 2521 /* We received a beacon from the associated AP so 2522 * remove the session protection. 2523 */ 2524 iwl_mvm_stop_session_protection(mvm, vif); 2525 2526 iwl_mvm_sf_update(mvm, vif, false); 2527 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2528 } 2529 2530 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2531 /* Send power command on every beacon change, 2532 * because we may have not enabled beacon abort yet. 2533 */ 2534 BSS_CHANGED_BEACON_INFO)) { 2535 ret = iwl_mvm_power_update_mac(mvm); 2536 if (ret) 2537 IWL_ERR(mvm, "failed to update power mode\n"); 2538 } 2539 2540 if (changes & BSS_CHANGED_CQM) { 2541 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2542 /* reset cqm events tracking */ 2543 mvmvif->bf_data.last_cqm_event = 0; 2544 if (mvmvif->bf_data.bf_enabled) { 2545 /* FIXME: need to update per link when FW API will 2546 * support it 2547 */ 2548 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2549 if (ret) 2550 IWL_ERR(mvm, 2551 "failed to update CQM thresholds\n"); 2552 } 2553 } 2554 2555 if (changes & BSS_CHANGED_BANDWIDTH) 2556 iwl_mvm_update_link_smps(vif, link_conf); 2557 } 2558 2559 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2560 struct ieee80211_vif *vif, 2561 struct ieee80211_bss_conf *bss_conf, 2562 u64 changes) 2563 { 2564 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2565 int ret; 2566 2567 /* 2568 * Re-calculate the tsf id, as the leader-follower relations depend 2569 * on the beacon interval, which was not known when the station 2570 * interface was added. 2571 */ 2572 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2573 if ((vif->bss_conf.he_support && 2574 !iwlwifi_mod_params.disable_11ax) || 2575 (vif->bss_conf.eht_support && 2576 !iwlwifi_mod_params.disable_11be)) 2577 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2578 2579 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2580 } 2581 2582 /* Update MU EDCA params */ 2583 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2584 vif->cfg.assoc && 2585 ((vif->bss_conf.he_support && 2586 !iwlwifi_mod_params.disable_11ax) || 2587 (vif->bss_conf.eht_support && 2588 !iwlwifi_mod_params.disable_11be))) 2589 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2590 2591 /* 2592 * If we're not associated yet, take the (new) BSSID before associating 2593 * so the firmware knows. If we're already associated, then use the old 2594 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2595 * branch for disassociation below. 2596 */ 2597 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2598 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2599 2600 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2601 if (ret) 2602 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2603 2604 /* after sending it once, adopt mac80211 data */ 2605 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2606 mvmvif->associated = vif->cfg.assoc; 2607 2608 if (changes & BSS_CHANGED_ASSOC) { 2609 if (vif->cfg.assoc) { 2610 /* clear statistics to get clean beacon counter */ 2611 iwl_mvm_request_statistics(mvm, true); 2612 memset(&mvmvif->deflink.beacon_stats, 0, 2613 sizeof(mvmvif->deflink.beacon_stats)); 2614 2615 /* add quota for this interface */ 2616 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2617 if (ret) { 2618 IWL_ERR(mvm, "failed to update quotas\n"); 2619 return; 2620 } 2621 2622 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2623 &mvm->status) && 2624 !fw_has_capa(&mvm->fw->ucode_capa, 2625 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2626 /* 2627 * If we're restarting then the firmware will 2628 * obviously have lost synchronisation with 2629 * the AP. It will attempt to synchronise by 2630 * itself, but we can make it more reliable by 2631 * scheduling a session protection time event. 2632 * 2633 * The firmware needs to receive a beacon to 2634 * catch up with synchronisation, use 110% of 2635 * the beacon interval. 2636 * 2637 * Set a large maximum delay to allow for more 2638 * than a single interface. 2639 * 2640 * For new firmware versions, rely on the 2641 * firmware. This is relevant for DCM scenarios 2642 * only anyway. 2643 */ 2644 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2645 iwl_mvm_protect_session(mvm, vif, dur, dur, 2646 5 * dur, false); 2647 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2648 &mvm->status) && 2649 !vif->bss_conf.dtim_period) { 2650 /* 2651 * If we're not restarting and still haven't 2652 * heard a beacon (dtim period unknown) then 2653 * make sure we still have enough minimum time 2654 * remaining in the time event, since the auth 2655 * might actually have taken quite a while 2656 * (especially for SAE) and so the remaining 2657 * time could be small without us having heard 2658 * a beacon yet. 2659 */ 2660 iwl_mvm_protect_assoc(mvm, vif, 0); 2661 } 2662 2663 iwl_mvm_sf_update(mvm, vif, false); 2664 iwl_mvm_power_vif_assoc(mvm, vif); 2665 if (vif->p2p) { 2666 iwl_mvm_update_smps(mvm, vif, 2667 IWL_MVM_SMPS_REQ_PROT, 2668 IEEE80211_SMPS_DYNAMIC, 0); 2669 } 2670 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2671 iwl_mvm_mei_host_disassociated(mvm); 2672 /* 2673 * If update fails - SF might be running in associated 2674 * mode while disassociated - which is forbidden. 2675 */ 2676 ret = iwl_mvm_sf_update(mvm, vif, false); 2677 WARN_ONCE(ret && 2678 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2679 &mvm->status), 2680 "Failed to update SF upon disassociation\n"); 2681 2682 /* 2683 * If we get an assert during the connection (after the 2684 * station has been added, but before the vif is set 2685 * to associated), mac80211 will re-add the station and 2686 * then configure the vif. Since the vif is not 2687 * associated, we would remove the station here and 2688 * this would fail the recovery. 2689 */ 2690 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2691 &mvm->status)) { 2692 /* first remove remaining keys */ 2693 iwl_mvm_sec_key_remove_ap(mvm, vif, 2694 &mvmvif->deflink, 0); 2695 2696 /* 2697 * Remove AP station now that 2698 * the MAC is unassoc 2699 */ 2700 ret = iwl_mvm_rm_sta_id(mvm, vif, 2701 mvmvif->deflink.ap_sta_id); 2702 if (ret) 2703 IWL_ERR(mvm, 2704 "failed to remove AP station\n"); 2705 2706 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2707 } 2708 2709 /* remove quota for this interface */ 2710 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2711 if (ret) 2712 IWL_ERR(mvm, "failed to update quotas\n"); 2713 2714 /* this will take the cleared BSSID from bss_conf */ 2715 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2716 if (ret) 2717 IWL_ERR(mvm, 2718 "failed to update MAC %pM (clear after unassoc)\n", 2719 vif->addr); 2720 } 2721 2722 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2723 } 2724 2725 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2726 changes); 2727 } 2728 2729 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2730 struct ieee80211_vif *vif, 2731 int *ret) 2732 { 2733 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2734 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2735 int i; 2736 2737 lockdep_assert_held(&mvm->mutex); 2738 2739 mvmvif->ap_assoc_sta_count = 0; 2740 2741 /* must be set before quota calculations */ 2742 mvmvif->ap_ibss_active = true; 2743 2744 /* send all the early keys to the device now */ 2745 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2746 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2747 2748 if (!key) 2749 continue; 2750 2751 mvmvif->ap_early_keys[i] = NULL; 2752 2753 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2754 if (*ret) 2755 return true; 2756 } 2757 2758 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2759 iwl_mvm_vif_set_low_latency(mvmvif, true, 2760 LOW_LATENCY_VIF_TYPE); 2761 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2762 } 2763 2764 /* power updated needs to be done before quotas */ 2765 iwl_mvm_power_update_mac(mvm); 2766 2767 return false; 2768 } 2769 2770 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2771 struct ieee80211_vif *vif, 2772 struct ieee80211_bss_conf *link_conf) 2773 { 2774 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2775 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2776 int ret; 2777 2778 mutex_lock(&mvm->mutex); 2779 2780 /* 2781 * Re-calculate the tsf id, as the leader-follower relations depend on 2782 * the beacon interval, which was not known when the AP interface 2783 * was added. 2784 */ 2785 if (vif->type == NL80211_IFTYPE_AP) 2786 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2787 2788 /* For older devices need to send beacon template before adding mac 2789 * context. For the newer, the beacon is a resource that belongs to a 2790 * MAC, so need to send beacon template after adding the mac. 2791 */ 2792 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2793 /* Add the mac context */ 2794 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2795 if (ret) 2796 goto out_unlock; 2797 2798 /* Send the beacon template */ 2799 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2800 if (ret) 2801 goto out_unlock; 2802 } else { 2803 /* Send the beacon template */ 2804 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2805 if (ret) 2806 goto out_unlock; 2807 2808 /* Add the mac context */ 2809 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2810 if (ret) 2811 goto out_unlock; 2812 } 2813 2814 /* Perform the binding */ 2815 ret = iwl_mvm_binding_add_vif(mvm, vif); 2816 if (ret) 2817 goto out_remove; 2818 2819 /* 2820 * This is not very nice, but the simplest: 2821 * For older FWs adding the mcast sta before the bcast station may 2822 * cause assert 0x2b00. 2823 * This is fixed in later FW so make the order of removal depend on 2824 * the TLV 2825 */ 2826 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2827 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2828 if (ret) 2829 goto out_unbind; 2830 /* 2831 * Send the bcast station. At this stage the TBTT and DTIM time 2832 * events are added and applied to the scheduler 2833 */ 2834 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2835 if (ret) { 2836 iwl_mvm_rm_mcast_sta(mvm, vif); 2837 goto out_unbind; 2838 } 2839 } else { 2840 /* 2841 * Send the bcast station. At this stage the TBTT and DTIM time 2842 * events are added and applied to the scheduler 2843 */ 2844 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2845 if (ret) 2846 goto out_unbind; 2847 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2848 if (ret) { 2849 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2850 goto out_unbind; 2851 } 2852 } 2853 2854 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2855 goto out_failed; 2856 2857 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2858 if (ret) 2859 goto out_failed; 2860 2861 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2862 if (vif->p2p && mvm->p2p_device_vif) 2863 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2864 2865 iwl_mvm_bt_coex_vif_change(mvm); 2866 2867 /* we don't support TDLS during DCM */ 2868 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2869 iwl_mvm_teardown_tdls_peers(mvm); 2870 2871 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2872 2873 goto out_unlock; 2874 2875 out_failed: 2876 iwl_mvm_power_update_mac(mvm); 2877 mvmvif->ap_ibss_active = false; 2878 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2879 iwl_mvm_rm_mcast_sta(mvm, vif); 2880 out_unbind: 2881 iwl_mvm_binding_remove_vif(mvm, vif); 2882 out_remove: 2883 iwl_mvm_mac_ctxt_remove(mvm, vif); 2884 out_unlock: 2885 mutex_unlock(&mvm->mutex); 2886 return ret; 2887 } 2888 2889 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2890 struct ieee80211_vif *vif, 2891 struct ieee80211_bss_conf *link_conf) 2892 { 2893 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2894 } 2895 2896 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2897 struct ieee80211_vif *vif) 2898 { 2899 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2900 } 2901 2902 /* Common part for MLD and non-MLD ops */ 2903 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2904 struct ieee80211_vif *vif) 2905 { 2906 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2907 2908 lockdep_assert_held(&mvm->mutex); 2909 2910 iwl_mvm_prepare_mac_removal(mvm, vif); 2911 2912 /* Handle AP stop while in CSA */ 2913 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2914 iwl_mvm_remove_time_event(mvm, mvmvif, 2915 &mvmvif->time_event_data); 2916 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2917 mvmvif->csa_countdown = false; 2918 } 2919 2920 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2921 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2922 mvm->csa_tx_block_bcn_timeout = 0; 2923 } 2924 2925 mvmvif->ap_ibss_active = false; 2926 mvm->ap_last_beacon_gp2 = 0; 2927 2928 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2929 iwl_mvm_vif_set_low_latency(mvmvif, false, 2930 LOW_LATENCY_VIF_TYPE); 2931 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2932 } 2933 2934 iwl_mvm_bt_coex_vif_change(mvm); 2935 } 2936 2937 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2938 struct ieee80211_vif *vif, 2939 struct ieee80211_bss_conf *link_conf) 2940 { 2941 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2942 2943 mutex_lock(&mvm->mutex); 2944 2945 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2946 2947 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2948 if (vif->p2p && mvm->p2p_device_vif) 2949 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2950 2951 iwl_mvm_update_quotas(mvm, false, NULL); 2952 2953 iwl_mvm_ftm_responder_clear(mvm, vif); 2954 2955 /* 2956 * This is not very nice, but the simplest: 2957 * For older FWs removing the mcast sta before the bcast station may 2958 * cause assert 0x2b00. 2959 * This is fixed in later FW (which will stop beaconing when removing 2960 * bcast station). 2961 * So make the order of removal depend on the TLV 2962 */ 2963 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2964 iwl_mvm_rm_mcast_sta(mvm, vif); 2965 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2966 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2967 iwl_mvm_rm_mcast_sta(mvm, vif); 2968 iwl_mvm_binding_remove_vif(mvm, vif); 2969 2970 iwl_mvm_power_update_mac(mvm); 2971 2972 iwl_mvm_mac_ctxt_remove(mvm, vif); 2973 2974 mutex_unlock(&mvm->mutex); 2975 } 2976 2977 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 2978 struct ieee80211_vif *vif, 2979 struct ieee80211_bss_conf *link_conf) 2980 { 2981 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 2982 } 2983 2984 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 2985 struct ieee80211_vif *vif) 2986 { 2987 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 2988 } 2989 2990 static void 2991 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2992 struct ieee80211_vif *vif, 2993 struct ieee80211_bss_conf *bss_conf, 2994 u64 changes) 2995 { 2996 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2997 2998 /* Changes will be applied when the AP/IBSS is started */ 2999 if (!mvmvif->ap_ibss_active) 3000 return; 3001 3002 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3003 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3004 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3005 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3006 3007 /* Need to send a new beacon template to the FW */ 3008 if (changes & BSS_CHANGED_BEACON && 3009 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3010 IWL_WARN(mvm, "Failed updating beacon data\n"); 3011 3012 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3013 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3014 3015 if (ret) 3016 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3017 ret); 3018 } 3019 3020 } 3021 3022 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3023 struct ieee80211_vif *vif, 3024 struct ieee80211_bss_conf *bss_conf, 3025 u64 changes) 3026 { 3027 static const struct iwl_mvm_bss_info_changed_ops callbacks = { 3028 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3029 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3030 }; 3031 3032 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3033 changes); 3034 } 3035 3036 void 3037 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3038 struct ieee80211_vif *vif, 3039 struct ieee80211_bss_conf *bss_conf, 3040 const struct iwl_mvm_bss_info_changed_ops *callbacks, 3041 u64 changes) 3042 { 3043 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3044 3045 mutex_lock(&mvm->mutex); 3046 3047 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3048 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3049 3050 switch (vif->type) { 3051 case NL80211_IFTYPE_STATION: 3052 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3053 break; 3054 case NL80211_IFTYPE_AP: 3055 case NL80211_IFTYPE_ADHOC: 3056 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3057 changes); 3058 break; 3059 case NL80211_IFTYPE_MONITOR: 3060 if (changes & BSS_CHANGED_MU_GROUPS) 3061 iwl_mvm_update_mu_groups(mvm, vif); 3062 break; 3063 default: 3064 /* shouldn't happen */ 3065 WARN_ON_ONCE(1); 3066 } 3067 3068 if (changes & BSS_CHANGED_TXPOWER) { 3069 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3070 bss_conf->txpower); 3071 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3072 } 3073 3074 mutex_unlock(&mvm->mutex); 3075 } 3076 3077 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3078 struct ieee80211_scan_request *hw_req) 3079 { 3080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3081 int ret; 3082 3083 if (hw_req->req.n_channels == 0 || 3084 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3085 return -EINVAL; 3086 3087 mutex_lock(&mvm->mutex); 3088 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3089 mutex_unlock(&mvm->mutex); 3090 3091 return ret; 3092 } 3093 3094 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3095 struct ieee80211_vif *vif) 3096 { 3097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3098 3099 mutex_lock(&mvm->mutex); 3100 3101 /* Due to a race condition, it's possible that mac80211 asks 3102 * us to stop a hw_scan when it's already stopped. This can 3103 * happen, for instance, if we stopped the scan ourselves, 3104 * called ieee80211_scan_completed() and the userspace called 3105 * cancel scan scan before ieee80211_scan_work() could run. 3106 * To handle that, simply return if the scan is not running. 3107 */ 3108 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3109 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3110 3111 mutex_unlock(&mvm->mutex); 3112 } 3113 3114 void 3115 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3116 struct ieee80211_sta *sta, u16 tids, 3117 int num_frames, 3118 enum ieee80211_frame_release_type reason, 3119 bool more_data) 3120 { 3121 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3122 3123 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3124 3125 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3126 tids, more_data, false); 3127 } 3128 3129 void 3130 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3131 struct ieee80211_sta *sta, u16 tids, 3132 int num_frames, 3133 enum ieee80211_frame_release_type reason, 3134 bool more_data) 3135 { 3136 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3137 3138 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3139 3140 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3141 tids, more_data, true); 3142 } 3143 3144 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3145 enum sta_notify_cmd cmd, 3146 struct ieee80211_sta *sta) 3147 { 3148 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3149 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3150 unsigned long txqs = 0, tids = 0; 3151 int tid; 3152 3153 /* 3154 * If we have TVQM then we get too high queue numbers - luckily 3155 * we really shouldn't get here with that because such hardware 3156 * should have firmware supporting buffer station offload. 3157 */ 3158 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3159 return; 3160 3161 spin_lock_bh(&mvmsta->lock); 3162 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3163 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3164 3165 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3166 continue; 3167 3168 __set_bit(tid_data->txq_id, &txqs); 3169 3170 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3171 continue; 3172 3173 __set_bit(tid, &tids); 3174 } 3175 3176 switch (cmd) { 3177 case STA_NOTIFY_SLEEP: 3178 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3179 ieee80211_sta_set_buffered(sta, tid, true); 3180 3181 if (txqs) 3182 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3183 /* 3184 * The fw updates the STA to be asleep. Tx packets on the Tx 3185 * queues to this station will not be transmitted. The fw will 3186 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3187 */ 3188 break; 3189 case STA_NOTIFY_AWAKE: 3190 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3191 break; 3192 3193 if (txqs) 3194 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3195 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3196 break; 3197 default: 3198 break; 3199 } 3200 spin_unlock_bh(&mvmsta->lock); 3201 } 3202 3203 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3204 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3205 { 3206 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3207 } 3208 3209 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3210 { 3211 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3212 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3213 struct ieee80211_sta *sta; 3214 struct iwl_mvm_sta *mvmsta; 3215 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3216 3217 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3218 return; 3219 3220 rcu_read_lock(); 3221 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3222 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3223 rcu_read_unlock(); 3224 return; 3225 } 3226 3227 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3228 3229 if (!mvmsta->vif || 3230 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3231 rcu_read_unlock(); 3232 return; 3233 } 3234 3235 if (mvmsta->sleeping != sleeping) { 3236 mvmsta->sleeping = sleeping; 3237 __iwl_mvm_mac_sta_notify(mvm->hw, 3238 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3239 sta); 3240 ieee80211_sta_ps_transition(sta, sleeping); 3241 } 3242 3243 if (sleeping) { 3244 switch (notif->type) { 3245 case IWL_MVM_PM_EVENT_AWAKE: 3246 case IWL_MVM_PM_EVENT_ASLEEP: 3247 break; 3248 case IWL_MVM_PM_EVENT_UAPSD: 3249 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3250 break; 3251 case IWL_MVM_PM_EVENT_PS_POLL: 3252 ieee80211_sta_pspoll(sta); 3253 break; 3254 default: 3255 break; 3256 } 3257 } 3258 3259 rcu_read_unlock(); 3260 } 3261 3262 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3263 struct ieee80211_vif *vif, 3264 struct ieee80211_sta *sta) 3265 { 3266 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3267 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3268 unsigned int link_id; 3269 3270 /* 3271 * This is called before mac80211 does RCU synchronisation, 3272 * so here we already invalidate our internal RCU-protected 3273 * station pointer. The rest of the code will thus no longer 3274 * be able to find the station this way, and we don't rely 3275 * on further RCU synchronisation after the sta_state() 3276 * callback deleted the station. 3277 * Since there's mvm->mutex here, no need to have RCU lock for 3278 * mvm_sta->link access. 3279 */ 3280 mutex_lock(&mvm->mutex); 3281 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3282 struct iwl_mvm_link_sta *link_sta; 3283 u32 sta_id; 3284 3285 if (!mvm_sta->link[link_id]) 3286 continue; 3287 3288 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3289 lockdep_is_held(&mvm->mutex)); 3290 sta_id = link_sta->sta_id; 3291 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3292 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3293 ERR_PTR(-ENOENT)); 3294 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3295 } 3296 } 3297 mutex_unlock(&mvm->mutex); 3298 } 3299 3300 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3301 const u8 *bssid) 3302 { 3303 int i; 3304 3305 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3306 struct iwl_mvm_tcm_mac *mdata; 3307 3308 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3309 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3310 mdata->opened_rx_ba_sessions = false; 3311 } 3312 3313 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3314 return; 3315 3316 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3317 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3318 return; 3319 } 3320 3321 if (!vif->p2p && 3322 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3323 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3324 return; 3325 } 3326 3327 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3328 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3329 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3330 return; 3331 } 3332 } 3333 3334 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3335 } 3336 3337 static void 3338 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3339 struct ieee80211_vif *vif, u8 *peer_addr, 3340 enum nl80211_tdls_operation action) 3341 { 3342 struct iwl_fw_dbg_trigger_tlv *trig; 3343 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3344 3345 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3346 FW_DBG_TRIGGER_TDLS); 3347 if (!trig) 3348 return; 3349 3350 tdls_trig = (void *)trig->data; 3351 3352 if (!(tdls_trig->action_bitmap & BIT(action))) 3353 return; 3354 3355 if (tdls_trig->peer_mode && 3356 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3357 return; 3358 3359 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3360 "TDLS event occurred, peer %pM, action %d", 3361 peer_addr, action); 3362 } 3363 3364 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3365 bool tolerated; 3366 }; 3367 3368 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3369 struct cfg80211_bss *bss, 3370 void *_data) 3371 { 3372 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3373 const struct cfg80211_bss_ies *ies; 3374 const struct element *elem; 3375 3376 rcu_read_lock(); 3377 ies = rcu_dereference(bss->ies); 3378 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3379 ies->len); 3380 3381 if (!elem || elem->datalen < 10 || 3382 !(elem->data[10] & 3383 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3384 data->tolerated = false; 3385 } 3386 rcu_read_unlock(); 3387 } 3388 3389 static void 3390 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3391 struct ieee80211_vif *vif, 3392 unsigned int link_id, 3393 struct ieee80211_bss_conf *link_conf) 3394 { 3395 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3396 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3397 .tolerated = true, 3398 }; 3399 3400 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3401 !mvmvif->link[link_id])) 3402 return; 3403 3404 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3405 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3406 return; 3407 } 3408 3409 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3410 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3411 &iter_data); 3412 3413 /* 3414 * If there is at least one AP on radar channel that cannot 3415 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3416 */ 3417 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3418 } 3419 3420 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3421 struct ieee80211_vif *vif) 3422 { 3423 struct ieee80211_supported_band *sband; 3424 const struct ieee80211_sta_he_cap *he_cap; 3425 3426 if (vif->type != NL80211_IFTYPE_STATION) 3427 return; 3428 3429 if (!mvm->cca_40mhz_workaround) 3430 return; 3431 3432 /* decrement and check that we reached zero */ 3433 mvm->cca_40mhz_workaround--; 3434 if (mvm->cca_40mhz_workaround) 3435 return; 3436 3437 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3438 3439 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3440 3441 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3442 3443 if (he_cap) { 3444 /* we know that ours is writable */ 3445 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3446 3447 he->he_cap_elem.phy_cap_info[0] |= 3448 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3449 } 3450 } 3451 3452 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3453 struct ieee80211_vif *vif, 3454 struct iwl_mvm_sta *mvm_sta) 3455 { 3456 #if IS_ENABLED(CONFIG_IWLMEI) 3457 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3458 struct iwl_mei_conn_info conn_info = { 3459 .ssid_len = vif->cfg.ssid_len, 3460 }; 3461 3462 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3463 return; 3464 3465 if (!mvm->mei_registered) 3466 return; 3467 3468 /* FIXME: MEI needs to be updated for MLO */ 3469 if (!vif->bss_conf.chandef.chan) 3470 return; 3471 3472 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3473 3474 switch (mvm_sta->pairwise_cipher) { 3475 case WLAN_CIPHER_SUITE_TKIP: 3476 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3477 break; 3478 case WLAN_CIPHER_SUITE_CCMP: 3479 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3480 break; 3481 case WLAN_CIPHER_SUITE_GCMP: 3482 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3483 break; 3484 case WLAN_CIPHER_SUITE_GCMP_256: 3485 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3486 break; 3487 case 0: 3488 /* open profile */ 3489 break; 3490 default: 3491 /* cipher not supported, don't send anything to iwlmei */ 3492 return; 3493 } 3494 3495 switch (mvmvif->rekey_data.akm) { 3496 case WLAN_AKM_SUITE_SAE & 0xff: 3497 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3498 break; 3499 case WLAN_AKM_SUITE_PSK & 0xff: 3500 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3501 break; 3502 case WLAN_AKM_SUITE_8021X & 0xff: 3503 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3504 break; 3505 case 0: 3506 /* open profile */ 3507 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3508 break; 3509 default: 3510 /* auth method / AKM not supported */ 3511 /* TODO: All the FT vesions of these? */ 3512 return; 3513 } 3514 3515 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3516 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3517 3518 /* TODO: add support for collocated AP data */ 3519 iwl_mei_host_associated(&conn_info, NULL); 3520 #endif 3521 } 3522 3523 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3524 struct ieee80211_vif *vif, 3525 bool force_assoc_off) 3526 { 3527 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3528 } 3529 3530 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3531 struct ieee80211_vif *vif, 3532 struct ieee80211_sta *sta, 3533 enum ieee80211_sta_state old_state, 3534 enum ieee80211_sta_state new_state) 3535 { 3536 static const struct iwl_mvm_sta_state_ops callbacks = { 3537 .add_sta = iwl_mvm_add_sta, 3538 .update_sta = iwl_mvm_update_sta, 3539 .rm_sta = iwl_mvm_rm_sta, 3540 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3541 }; 3542 3543 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3544 &callbacks); 3545 } 3546 3547 /* FIXME: temporary making two assumptions in all sta handling functions: 3548 * (1) when setting sta state, the link exists and protected 3549 * (2) if a link is valid in sta then it's valid in vif (can 3550 * use same index in the link array) 3551 */ 3552 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3553 struct ieee80211_vif *vif, 3554 struct ieee80211_sta *sta) 3555 { 3556 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3557 unsigned int link_id; 3558 3559 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3560 struct ieee80211_bss_conf *conf = 3561 link_conf_dereference_check(vif, link_id); 3562 struct ieee80211_link_sta *link_sta = 3563 link_sta_dereference_check(sta, link_id); 3564 3565 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3566 continue; 3567 3568 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3569 mvmvif->link[link_id]->phy_ctxt->channel->band); 3570 } 3571 } 3572 3573 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3574 3575 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3576 struct ieee80211_vif *vif, 3577 struct ieee80211_sta *sta) 3578 { 3579 struct ieee80211_link_sta *link_sta; 3580 unsigned int link_id; 3581 3582 /* Beacon interval check - firmware will crash if the beacon 3583 * interval is less than 16. We can't avoid connecting at all, 3584 * so refuse the station state change, this will cause mac80211 3585 * to abandon attempts to connect to this AP, and eventually 3586 * wpa_s will blocklist the AP... 3587 */ 3588 3589 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3590 struct ieee80211_bss_conf *link_conf = 3591 link_conf_dereference_protected(vif, link_id); 3592 3593 if (!link_conf) 3594 continue; 3595 3596 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3597 IWL_ERR(mvm, 3598 "Beacon interval %d for AP %pM is too small\n", 3599 link_conf->beacon_int, link_sta->addr); 3600 return false; 3601 } 3602 3603 link_conf->he_support = link_sta->he_cap.has_he; 3604 } 3605 3606 return true; 3607 } 3608 3609 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3610 struct ieee80211_vif *vif, 3611 struct ieee80211_sta *sta, 3612 bool is_sta) 3613 { 3614 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3615 struct ieee80211_link_sta *link_sta; 3616 unsigned int link_id; 3617 3618 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3619 struct ieee80211_bss_conf *link_conf = 3620 link_conf_dereference_protected(vif, link_id); 3621 3622 if (!link_conf || !mvmvif->link[link_id]) 3623 continue; 3624 3625 link_conf->he_support = link_sta->he_cap.has_he; 3626 3627 if (is_sta) { 3628 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3629 if (link_sta->he_cap.has_he) 3630 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3631 link_id, 3632 link_conf); 3633 } 3634 } 3635 } 3636 3637 static int 3638 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3639 struct ieee80211_vif *vif, 3640 struct ieee80211_sta *sta, 3641 const struct iwl_mvm_sta_state_ops *callbacks) 3642 { 3643 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3644 struct ieee80211_link_sta *link_sta; 3645 unsigned int i; 3646 int ret; 3647 3648 lockdep_assert_held(&mvm->mutex); 3649 3650 if (vif->type == NL80211_IFTYPE_STATION && 3651 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3652 return -EINVAL; 3653 3654 if (sta->tdls && 3655 (vif->p2p || 3656 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3657 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3658 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3659 return -EBUSY; 3660 } 3661 3662 ret = callbacks->add_sta(mvm, vif, sta); 3663 if (sta->tdls && ret == 0) { 3664 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3665 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3666 NL80211_TDLS_SETUP); 3667 } 3668 3669 if (ret) 3670 return ret; 3671 3672 for_each_sta_active_link(vif, sta, link_sta, i) 3673 link_sta->agg.max_rc_amsdu_len = 1; 3674 3675 ieee80211_sta_recalc_aggregates(sta); 3676 3677 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3678 mvmvif->ap_sta = sta; 3679 3680 return 0; 3681 } 3682 3683 static int 3684 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3685 struct iwl_mvm *mvm, 3686 struct ieee80211_vif *vif, 3687 struct ieee80211_sta *sta, 3688 const struct iwl_mvm_sta_state_ops *callbacks) 3689 { 3690 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3691 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3692 struct ieee80211_link_sta *link_sta; 3693 unsigned int link_id; 3694 3695 lockdep_assert_held(&mvm->mutex); 3696 3697 if (vif->type == NL80211_IFTYPE_AP) { 3698 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3699 mvmvif->ap_assoc_sta_count++; 3700 callbacks->mac_ctxt_changed(mvm, vif, false); 3701 3702 /* since the below is not for MLD API, it's ok to use 3703 * the default bss_conf 3704 */ 3705 if (!mvm->mld_api_is_used && 3706 ((vif->bss_conf.he_support && 3707 !iwlwifi_mod_params.disable_11ax) || 3708 (vif->bss_conf.eht_support && 3709 !iwlwifi_mod_params.disable_11be))) 3710 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3711 } else if (vif->type == NL80211_IFTYPE_STATION) { 3712 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3713 3714 callbacks->mac_ctxt_changed(mvm, vif, false); 3715 3716 if (!mvm->mld_api_is_used) 3717 goto out; 3718 3719 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3720 struct ieee80211_bss_conf *link_conf = 3721 link_conf_dereference_protected(vif, link_id); 3722 3723 if (WARN_ON(!link_conf)) 3724 return -EINVAL; 3725 if (!mvmvif->link[link_id]) 3726 continue; 3727 3728 iwl_mvm_link_changed(mvm, vif, link_conf, 3729 LINK_CONTEXT_MODIFY_ALL & 3730 ~LINK_CONTEXT_MODIFY_ACTIVE, 3731 true); 3732 } 3733 } 3734 3735 out: 3736 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3737 3738 return callbacks->update_sta(mvm, vif, sta); 3739 } 3740 3741 static int 3742 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3743 struct ieee80211_vif *vif, 3744 struct ieee80211_sta *sta, 3745 const struct iwl_mvm_sta_state_ops *callbacks) 3746 { 3747 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3748 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3749 3750 lockdep_assert_held(&mvm->mutex); 3751 3752 /* we don't support TDLS during DCM */ 3753 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3754 iwl_mvm_teardown_tdls_peers(mvm); 3755 3756 if (sta->tdls) { 3757 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3758 NL80211_TDLS_ENABLE_LINK); 3759 } else { 3760 /* enable beacon filtering */ 3761 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3762 3763 mvmvif->authorized = 1; 3764 3765 callbacks->mac_ctxt_changed(mvm, vif, false); 3766 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3767 } 3768 3769 mvm_sta->authorized = true; 3770 3771 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3772 3773 /* MFP is set by default before the station is authorized. 3774 * Clear it here in case it's not used. 3775 */ 3776 if (!sta->mfp) 3777 return callbacks->update_sta(mvm, vif, sta); 3778 3779 return 0; 3780 } 3781 3782 static int 3783 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3784 struct ieee80211_vif *vif, 3785 struct ieee80211_sta *sta, 3786 const struct iwl_mvm_sta_state_ops *callbacks) 3787 { 3788 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3789 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3790 3791 lockdep_assert_held(&mvm->mutex); 3792 3793 mvmsta->authorized = false; 3794 3795 /* once we move into assoc state, need to update rate scale to 3796 * disable using wide bandwidth 3797 */ 3798 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3799 3800 if (!sta->tdls) { 3801 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3802 * yet to avoid sending high prio again for a little 3803 * time. 3804 */ 3805 mvmvif->authorized = 0; 3806 3807 /* disable beacon filtering */ 3808 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3809 } 3810 3811 return 0; 3812 } 3813 3814 /* Common part for MLD and non-MLD modes */ 3815 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3816 struct ieee80211_vif *vif, 3817 struct ieee80211_sta *sta, 3818 enum ieee80211_sta_state old_state, 3819 enum ieee80211_sta_state new_state, 3820 const struct iwl_mvm_sta_state_ops *callbacks) 3821 { 3822 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3823 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3824 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3825 struct ieee80211_link_sta *link_sta; 3826 unsigned int link_id; 3827 int ret; 3828 3829 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3830 sta->addr, old_state, new_state); 3831 3832 /* 3833 * If we are in a STA removal flow and in DQA mode: 3834 * 3835 * This is after the sync_rcu part, so the queues have already been 3836 * flushed. No more TXs on their way in mac80211's path, and no more in 3837 * the queues. 3838 * Also, we won't be getting any new TX frames for this station. 3839 * What we might have are deferred TX frames that need to be taken care 3840 * of. 3841 * 3842 * Drop any still-queued deferred-frame before removing the STA, and 3843 * make sure the worker is no longer handling frames for this STA. 3844 */ 3845 if (old_state == IEEE80211_STA_NONE && 3846 new_state == IEEE80211_STA_NOTEXIST) { 3847 flush_work(&mvm->add_stream_wk); 3848 3849 /* 3850 * No need to make sure deferred TX indication is off since the 3851 * worker will already remove it if it was on 3852 */ 3853 3854 /* 3855 * Additionally, reset the 40 MHz capability if we disconnected 3856 * from the AP now. 3857 */ 3858 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3859 3860 /* Also free dup data just in case any assertions below fail */ 3861 kfree(mvm_sta->dup_data); 3862 } 3863 3864 mutex_lock(&mvm->mutex); 3865 3866 /* this would be a mac80211 bug ... but don't crash */ 3867 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3868 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3869 mutex_unlock(&mvm->mutex); 3870 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3871 &mvm->status) ? 0 : -EINVAL; 3872 } 3873 } 3874 3875 /* track whether or not the station is associated */ 3876 mvm_sta->sta_state = new_state; 3877 3878 if (old_state == IEEE80211_STA_NOTEXIST && 3879 new_state == IEEE80211_STA_NONE) { 3880 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3881 callbacks); 3882 if (ret < 0) 3883 goto out_unlock; 3884 } else if (old_state == IEEE80211_STA_NONE && 3885 new_state == IEEE80211_STA_AUTH) { 3886 /* 3887 * EBS may be disabled due to previous failures reported by FW. 3888 * Reset EBS status here assuming environment has been changed. 3889 */ 3890 mvm->last_ebs_successful = true; 3891 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3892 ret = 0; 3893 } else if (old_state == IEEE80211_STA_AUTH && 3894 new_state == IEEE80211_STA_ASSOC) { 3895 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3896 callbacks); 3897 } else if (old_state == IEEE80211_STA_ASSOC && 3898 new_state == IEEE80211_STA_AUTHORIZED) { 3899 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3900 callbacks); 3901 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3902 new_state == IEEE80211_STA_ASSOC) { 3903 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3904 callbacks); 3905 } else if (old_state == IEEE80211_STA_ASSOC && 3906 new_state == IEEE80211_STA_AUTH) { 3907 if (vif->type == NL80211_IFTYPE_AP) { 3908 mvmvif->ap_assoc_sta_count--; 3909 callbacks->mac_ctxt_changed(mvm, vif, false); 3910 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3911 iwl_mvm_stop_session_protection(mvm, vif); 3912 ret = 0; 3913 } else if (old_state == IEEE80211_STA_AUTH && 3914 new_state == IEEE80211_STA_NONE) { 3915 ret = 0; 3916 } else if (old_state == IEEE80211_STA_NONE && 3917 new_state == IEEE80211_STA_NOTEXIST) { 3918 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3919 iwl_mvm_stop_session_protection(mvm, vif); 3920 mvmvif->ap_sta = NULL; 3921 } 3922 ret = callbacks->rm_sta(mvm, vif, sta); 3923 if (sta->tdls) { 3924 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3925 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3926 NL80211_TDLS_DISABLE_LINK); 3927 } 3928 3929 if (unlikely(ret && 3930 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3931 &mvm->status))) 3932 ret = 0; 3933 } else { 3934 ret = -EIO; 3935 } 3936 out_unlock: 3937 mutex_unlock(&mvm->mutex); 3938 3939 if (sta->tdls && ret == 0) { 3940 if (old_state == IEEE80211_STA_NOTEXIST && 3941 new_state == IEEE80211_STA_NONE) 3942 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3943 else if (old_state == IEEE80211_STA_NONE && 3944 new_state == IEEE80211_STA_NOTEXIST) 3945 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3946 } 3947 3948 return ret; 3949 } 3950 3951 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3952 { 3953 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3954 3955 mvm->rts_threshold = value; 3956 3957 return 0; 3958 } 3959 3960 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3961 struct ieee80211_sta *sta, u32 changed) 3962 { 3963 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3964 3965 if (changed & (IEEE80211_RC_BW_CHANGED | 3966 IEEE80211_RC_SUPP_RATES_CHANGED | 3967 IEEE80211_RC_NSS_CHANGED)) 3968 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3969 3970 if (vif->type == NL80211_IFTYPE_STATION && 3971 changed & IEEE80211_RC_NSS_CHANGED) 3972 iwl_mvm_sf_update(mvm, vif, false); 3973 } 3974 3975 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3976 struct ieee80211_vif *vif, 3977 unsigned int link_id, u16 ac, 3978 const struct ieee80211_tx_queue_params *params) 3979 { 3980 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3981 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3982 3983 mvmvif->deflink.queue_params[ac] = *params; 3984 3985 /* 3986 * No need to update right away, we'll get BSS_CHANGED_QOS 3987 * The exception is P2P_DEVICE interface which needs immediate update. 3988 */ 3989 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3990 int ret; 3991 3992 mutex_lock(&mvm->mutex); 3993 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3994 mutex_unlock(&mvm->mutex); 3995 return ret; 3996 } 3997 return 0; 3998 } 3999 4000 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4001 struct ieee80211_vif *vif, 4002 struct ieee80211_prep_tx_info *info) 4003 { 4004 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4005 4006 mutex_lock(&mvm->mutex); 4007 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4008 mutex_unlock(&mvm->mutex); 4009 } 4010 4011 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4012 struct ieee80211_vif *vif, 4013 struct ieee80211_prep_tx_info *info) 4014 { 4015 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4016 4017 /* for successful cases (auth/assoc), don't cancel session protection */ 4018 if (info->success) 4019 return; 4020 4021 mutex_lock(&mvm->mutex); 4022 iwl_mvm_stop_session_protection(mvm, vif); 4023 mutex_unlock(&mvm->mutex); 4024 } 4025 4026 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4027 struct ieee80211_vif *vif, 4028 struct cfg80211_sched_scan_request *req, 4029 struct ieee80211_scan_ies *ies) 4030 { 4031 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4032 4033 int ret; 4034 4035 mutex_lock(&mvm->mutex); 4036 4037 if (!vif->cfg.idle) { 4038 ret = -EBUSY; 4039 goto out; 4040 } 4041 4042 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4043 4044 out: 4045 mutex_unlock(&mvm->mutex); 4046 return ret; 4047 } 4048 4049 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4050 struct ieee80211_vif *vif) 4051 { 4052 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4053 int ret; 4054 4055 mutex_lock(&mvm->mutex); 4056 4057 /* Due to a race condition, it's possible that mac80211 asks 4058 * us to stop a sched_scan when it's already stopped. This 4059 * can happen, for instance, if we stopped the scan ourselves, 4060 * called ieee80211_sched_scan_stopped() and the userspace called 4061 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4062 * could run. To handle this, simply return if the scan is 4063 * not running. 4064 */ 4065 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4066 mutex_unlock(&mvm->mutex); 4067 return 0; 4068 } 4069 4070 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4071 mutex_unlock(&mvm->mutex); 4072 iwl_mvm_wait_for_async_handlers(mvm); 4073 4074 return ret; 4075 } 4076 4077 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4078 enum set_key_cmd cmd, 4079 struct ieee80211_vif *vif, 4080 struct ieee80211_sta *sta, 4081 struct ieee80211_key_conf *key) 4082 { 4083 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4084 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4085 struct iwl_mvm_sta *mvmsta = NULL; 4086 struct iwl_mvm_key_pn *ptk_pn = NULL; 4087 int keyidx = key->keyidx; 4088 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4089 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4090 int ret, i; 4091 u8 key_offset; 4092 4093 if (sta) 4094 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4095 4096 switch (key->cipher) { 4097 case WLAN_CIPHER_SUITE_TKIP: 4098 if (!mvm->trans->trans_cfg->gen2) { 4099 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4100 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4101 } else if (vif->type == NL80211_IFTYPE_STATION) { 4102 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4103 } else { 4104 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4105 return -EOPNOTSUPP; 4106 } 4107 break; 4108 case WLAN_CIPHER_SUITE_CCMP: 4109 case WLAN_CIPHER_SUITE_GCMP: 4110 case WLAN_CIPHER_SUITE_GCMP_256: 4111 if (!iwl_mvm_has_new_tx_api(mvm)) 4112 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4113 break; 4114 case WLAN_CIPHER_SUITE_AES_CMAC: 4115 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4116 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4117 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4118 break; 4119 case WLAN_CIPHER_SUITE_WEP40: 4120 case WLAN_CIPHER_SUITE_WEP104: 4121 if (vif->type == NL80211_IFTYPE_STATION) 4122 break; 4123 if (iwl_mvm_has_new_tx_api(mvm)) 4124 return -EOPNOTSUPP; 4125 /* support HW crypto on TX */ 4126 return 0; 4127 default: 4128 return -EOPNOTSUPP; 4129 } 4130 4131 switch (cmd) { 4132 case SET_KEY: 4133 if (vif->type == NL80211_IFTYPE_STATION && 4134 (keyidx == 6 || keyidx == 7)) 4135 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4136 key); 4137 4138 if ((vif->type == NL80211_IFTYPE_ADHOC || 4139 vif->type == NL80211_IFTYPE_AP) && !sta) { 4140 /* 4141 * GTK on AP interface is a TX-only key, return 0; 4142 * on IBSS they're per-station and because we're lazy 4143 * we don't support them for RX, so do the same. 4144 * CMAC/GMAC in AP/IBSS modes must be done in software. 4145 * 4146 * Except, of course, beacon protection - it must be 4147 * offloaded since we just set a beacon template. 4148 */ 4149 if (keyidx < 6 && 4150 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4151 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4152 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4153 ret = -EOPNOTSUPP; 4154 break; 4155 } 4156 4157 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4158 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4159 !iwl_mvm_has_new_tx_api(mvm)) { 4160 key->hw_key_idx = STA_KEY_IDX_INVALID; 4161 ret = 0; 4162 break; 4163 } 4164 4165 if (!mvmvif->ap_ibss_active) { 4166 for (i = 0; 4167 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4168 i++) { 4169 if (!mvmvif->ap_early_keys[i]) { 4170 mvmvif->ap_early_keys[i] = key; 4171 break; 4172 } 4173 } 4174 4175 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4176 ret = -ENOSPC; 4177 else 4178 ret = 0; 4179 4180 break; 4181 } 4182 } 4183 4184 /* During FW restart, in order to restore the state as it was, 4185 * don't try to reprogram keys we previously failed for. 4186 */ 4187 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4188 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4189 IWL_DEBUG_MAC80211(mvm, 4190 "skip invalid idx key programming during restart\n"); 4191 ret = 0; 4192 break; 4193 } 4194 4195 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4196 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4197 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4198 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4199 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4200 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4201 struct ieee80211_key_seq seq; 4202 int tid, q; 4203 4204 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4205 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4206 mvm->trans->num_rx_queues), 4207 GFP_KERNEL); 4208 if (!ptk_pn) { 4209 ret = -ENOMEM; 4210 break; 4211 } 4212 4213 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4214 ieee80211_get_key_rx_seq(key, tid, &seq); 4215 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4216 memcpy(ptk_pn->q[q].pn[tid], 4217 seq.ccmp.pn, 4218 IEEE80211_CCMP_PN_LEN); 4219 } 4220 4221 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4222 } 4223 4224 /* in HW restart reuse the index, otherwise request a new one */ 4225 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4226 key_offset = key->hw_key_idx; 4227 else 4228 key_offset = STA_KEY_IDX_INVALID; 4229 4230 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4231 mvmsta->pairwise_cipher = key->cipher; 4232 4233 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4234 sta ? sta->addr : NULL, key->keyidx); 4235 4236 if (sec_key_ver) 4237 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4238 else 4239 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4240 4241 if (ret) { 4242 IWL_WARN(mvm, "set key failed\n"); 4243 key->hw_key_idx = STA_KEY_IDX_INVALID; 4244 if (ptk_pn) { 4245 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4246 kfree(ptk_pn); 4247 } 4248 /* 4249 * can't add key for RX, but we don't need it 4250 * in the device for TX so still return 0, 4251 * unless we have new TX API where we cannot 4252 * put key material into the TX_CMD 4253 */ 4254 if (iwl_mvm_has_new_tx_api(mvm)) 4255 ret = -EOPNOTSUPP; 4256 else 4257 ret = 0; 4258 } 4259 4260 break; 4261 case DISABLE_KEY: 4262 if (vif->type == NL80211_IFTYPE_STATION && 4263 (keyidx == 6 || keyidx == 7)) 4264 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4265 NULL); 4266 4267 ret = -ENOENT; 4268 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4269 if (mvmvif->ap_early_keys[i] == key) { 4270 mvmvif->ap_early_keys[i] = NULL; 4271 ret = 0; 4272 } 4273 } 4274 4275 /* found in pending list - don't do anything else */ 4276 if (ret == 0) 4277 break; 4278 4279 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4280 ret = 0; 4281 break; 4282 } 4283 4284 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4285 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4286 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4287 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4288 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4289 ptk_pn = rcu_dereference_protected( 4290 mvmsta->ptk_pn[keyidx], 4291 lockdep_is_held(&mvm->mutex)); 4292 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4293 if (ptk_pn) 4294 kfree_rcu(ptk_pn, rcu_head); 4295 } 4296 4297 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4298 if (sec_key_ver) 4299 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4300 else 4301 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4302 break; 4303 default: 4304 ret = -EINVAL; 4305 } 4306 4307 return ret; 4308 } 4309 4310 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4311 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4312 struct ieee80211_key_conf *key) 4313 { 4314 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4315 int ret; 4316 4317 mutex_lock(&mvm->mutex); 4318 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4319 mutex_unlock(&mvm->mutex); 4320 4321 return ret; 4322 } 4323 4324 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4325 struct ieee80211_vif *vif, 4326 struct ieee80211_key_conf *keyconf, 4327 struct ieee80211_sta *sta, 4328 u32 iv32, u16 *phase1key) 4329 { 4330 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4331 4332 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4333 return; 4334 4335 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4336 } 4337 4338 4339 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4340 struct iwl_rx_packet *pkt, void *data) 4341 { 4342 struct iwl_mvm *mvm = 4343 container_of(notif_wait, struct iwl_mvm, notif_wait); 4344 struct iwl_hs20_roc_res *resp; 4345 int resp_len = iwl_rx_packet_payload_len(pkt); 4346 struct iwl_mvm_time_event_data *te_data = data; 4347 4348 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4349 return true; 4350 4351 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4352 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4353 return true; 4354 } 4355 4356 resp = (void *)pkt->data; 4357 4358 IWL_DEBUG_TE(mvm, 4359 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4360 resp->status, resp->event_unique_id); 4361 4362 te_data->uid = le32_to_cpu(resp->event_unique_id); 4363 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4364 te_data->uid); 4365 4366 spin_lock_bh(&mvm->time_event_lock); 4367 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4368 spin_unlock_bh(&mvm->time_event_lock); 4369 4370 return true; 4371 } 4372 4373 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4374 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4375 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4376 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4377 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4378 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4379 struct ieee80211_channel *channel, 4380 struct ieee80211_vif *vif, 4381 int duration) 4382 { 4383 int res; 4384 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4385 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4386 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4387 struct iwl_notification_wait wait_time_event; 4388 u32 dtim_interval = vif->bss_conf.dtim_period * 4389 vif->bss_conf.beacon_int; 4390 u32 req_dur, delay; 4391 struct iwl_hs20_roc_req aux_roc_req = { 4392 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4393 .id_and_color = 4394 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4395 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4396 }; 4397 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4398 &aux_roc_req.channel_info); 4399 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4400 4401 /* Set the channel info data */ 4402 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4403 iwl_mvm_phy_band_from_nl80211(channel->band), 4404 IWL_PHY_CHANNEL_MODE20, 4405 0); 4406 4407 /* Set the time and duration */ 4408 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4409 4410 delay = AUX_ROC_MIN_DELAY; 4411 req_dur = MSEC_TO_TU(duration); 4412 4413 /* 4414 * If we are associated we want the delay time to be at least one 4415 * dtim interval so that the FW can wait until after the DTIM and 4416 * then start the time event, this will potentially allow us to 4417 * remain off-channel for the max duration. 4418 * Since we want to use almost a whole dtim interval we would also 4419 * like the delay to be for 2-3 dtim intervals, in case there are 4420 * other time events with higher priority. 4421 */ 4422 if (vif->cfg.assoc) { 4423 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4424 /* We cannot remain off-channel longer than the DTIM interval */ 4425 if (dtim_interval <= req_dur) { 4426 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4427 if (req_dur <= AUX_ROC_MIN_DURATION) 4428 req_dur = dtim_interval - 4429 AUX_ROC_MIN_SAFETY_BUFFER; 4430 } 4431 } 4432 4433 tail->duration = cpu_to_le32(req_dur); 4434 tail->apply_time_max_delay = cpu_to_le32(delay); 4435 4436 IWL_DEBUG_TE(mvm, 4437 "ROC: Requesting to remain on channel %u for %ums\n", 4438 channel->hw_value, req_dur); 4439 IWL_DEBUG_TE(mvm, 4440 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4441 duration, delay, dtim_interval); 4442 4443 /* Set the node address */ 4444 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4445 4446 lockdep_assert_held(&mvm->mutex); 4447 4448 spin_lock_bh(&mvm->time_event_lock); 4449 4450 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4451 spin_unlock_bh(&mvm->time_event_lock); 4452 return -EIO; 4453 } 4454 4455 te_data->vif = vif; 4456 te_data->duration = duration; 4457 te_data->id = HOT_SPOT_CMD; 4458 4459 spin_unlock_bh(&mvm->time_event_lock); 4460 4461 /* 4462 * Use a notification wait, which really just processes the 4463 * command response and doesn't wait for anything, in order 4464 * to be able to process the response and get the UID inside 4465 * the RX path. Using CMD_WANT_SKB doesn't work because it 4466 * stores the buffer and then wakes up this thread, by which 4467 * time another notification (that the time event started) 4468 * might already be processed unsuccessfully. 4469 */ 4470 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4471 time_event_response, 4472 ARRAY_SIZE(time_event_response), 4473 iwl_mvm_rx_aux_roc, te_data); 4474 4475 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4476 &aux_roc_req); 4477 4478 if (res) { 4479 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4480 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4481 goto out_clear_te; 4482 } 4483 4484 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4485 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4486 /* should never fail */ 4487 WARN_ON_ONCE(res); 4488 4489 if (res) { 4490 out_clear_te: 4491 spin_lock_bh(&mvm->time_event_lock); 4492 iwl_mvm_te_clear_data(mvm, te_data); 4493 spin_unlock_bh(&mvm->time_event_lock); 4494 } 4495 4496 return res; 4497 } 4498 4499 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4500 { 4501 int ret = 0; 4502 4503 lockdep_assert_held(&mvm->mutex); 4504 4505 if (!fw_has_capa(&mvm->fw->ucode_capa, 4506 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4507 IWL_ERR(mvm, "hotspot not supported\n"); 4508 return -EINVAL; 4509 } 4510 4511 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4512 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4513 WARN(ret, "Failed to allocate aux station"); 4514 } 4515 4516 return ret; 4517 } 4518 4519 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4520 { 4521 int ret; 4522 4523 lockdep_assert_held(&mvm->mutex); 4524 4525 ret = iwl_mvm_binding_add_vif(mvm, vif); 4526 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4527 return ret; 4528 4529 /* The station and queue allocation must be done only after the binding 4530 * is done, as otherwise the FW might incorrectly configure its state. 4531 */ 4532 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4533 } 4534 4535 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4536 struct ieee80211_vif *vif, 4537 struct ieee80211_channel *channel, 4538 int duration, 4539 enum ieee80211_roc_type type) 4540 { 4541 static const struct iwl_mvm_roc_ops ops = { 4542 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4543 .link = iwl_mvm_roc_link, 4544 }; 4545 4546 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4547 } 4548 4549 /* Execute the common part for MLD and non-MLD modes */ 4550 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4551 struct ieee80211_channel *channel, int duration, 4552 enum ieee80211_roc_type type, 4553 const struct iwl_mvm_roc_ops *ops) 4554 { 4555 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4556 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4557 struct cfg80211_chan_def chandef; 4558 struct iwl_mvm_phy_ctxt *phy_ctxt; 4559 int ret, i; 4560 u32 lmac_id; 4561 4562 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4563 duration, type); 4564 4565 /* 4566 * Flush the done work, just in case it's still pending, so that 4567 * the work it does can complete and we can accept new frames. 4568 */ 4569 flush_work(&mvm->roc_done_wk); 4570 4571 mutex_lock(&mvm->mutex); 4572 4573 switch (vif->type) { 4574 case NL80211_IFTYPE_STATION: 4575 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4576 4577 /* Use aux roc framework (HS20) */ 4578 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4579 if (!ret) 4580 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4581 vif, duration); 4582 goto out_unlock; 4583 case NL80211_IFTYPE_P2P_DEVICE: 4584 /* handle below */ 4585 break; 4586 default: 4587 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4588 ret = -EINVAL; 4589 goto out_unlock; 4590 } 4591 4592 /* Try using a PHY context that is already in use */ 4593 for (i = 0; i < NUM_PHY_CTX; i++) { 4594 phy_ctxt = &mvm->phy_ctxts[i]; 4595 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4596 continue; 4597 4598 if (channel == phy_ctxt->channel) { 4599 if (mvmvif->deflink.phy_ctxt) 4600 iwl_mvm_phy_ctxt_unref(mvm, 4601 mvmvif->deflink.phy_ctxt); 4602 4603 mvmvif->deflink.phy_ctxt = phy_ctxt; 4604 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4605 goto link_and_start_p2p_roc; 4606 } 4607 } 4608 4609 /* If the currently used PHY context is configured with a matching 4610 * channel use it 4611 */ 4612 if (mvmvif->deflink.phy_ctxt) { 4613 if (channel == mvmvif->deflink.phy_ctxt->channel) 4614 goto link_and_start_p2p_roc; 4615 } else { 4616 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4617 if (!phy_ctxt) { 4618 ret = -ENOSPC; 4619 goto out_unlock; 4620 } 4621 4622 mvmvif->deflink.phy_ctxt = phy_ctxt; 4623 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4624 } 4625 4626 /* Configure the PHY context */ 4627 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4628 4629 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4630 1, 1); 4631 if (ret) { 4632 IWL_ERR(mvm, "Failed to change PHY context\n"); 4633 goto out_unlock; 4634 } 4635 4636 link_and_start_p2p_roc: 4637 ret = ops->link(mvm, vif); 4638 if (ret) 4639 goto out_unlock; 4640 4641 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4642 out_unlock: 4643 mutex_unlock(&mvm->mutex); 4644 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4645 return ret; 4646 } 4647 4648 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4649 struct ieee80211_vif *vif) 4650 { 4651 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4652 4653 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4654 4655 mutex_lock(&mvm->mutex); 4656 iwl_mvm_stop_roc(mvm, vif); 4657 mutex_unlock(&mvm->mutex); 4658 4659 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4660 return 0; 4661 } 4662 4663 struct iwl_mvm_ftm_responder_iter_data { 4664 bool responder; 4665 struct ieee80211_chanctx_conf *ctx; 4666 }; 4667 4668 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4669 struct ieee80211_vif *vif) 4670 { 4671 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4672 4673 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4674 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4675 data->responder = true; 4676 } 4677 4678 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4679 struct ieee80211_chanctx_conf *ctx) 4680 { 4681 struct iwl_mvm_ftm_responder_iter_data data = { 4682 .responder = false, 4683 .ctx = ctx, 4684 }; 4685 4686 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4687 IEEE80211_IFACE_ITER_NORMAL, 4688 iwl_mvm_ftm_responder_chanctx_iter, 4689 &data); 4690 return data.responder; 4691 } 4692 4693 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4694 struct ieee80211_chanctx_conf *ctx) 4695 { 4696 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4697 struct iwl_mvm_phy_ctxt *phy_ctxt; 4698 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4699 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4700 int ret; 4701 4702 lockdep_assert_held(&mvm->mutex); 4703 4704 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4705 4706 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4707 if (!phy_ctxt) { 4708 ret = -ENOSPC; 4709 goto out; 4710 } 4711 4712 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4713 ctx->rx_chains_static, 4714 ctx->rx_chains_dynamic); 4715 if (ret) { 4716 IWL_ERR(mvm, "Failed to add PHY context\n"); 4717 goto out; 4718 } 4719 4720 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4721 *phy_ctxt_id = phy_ctxt->id; 4722 out: 4723 return ret; 4724 } 4725 4726 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4727 struct ieee80211_chanctx_conf *ctx) 4728 { 4729 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4730 int ret; 4731 4732 mutex_lock(&mvm->mutex); 4733 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4734 mutex_unlock(&mvm->mutex); 4735 4736 return ret; 4737 } 4738 4739 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4740 struct ieee80211_chanctx_conf *ctx) 4741 { 4742 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4743 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4744 4745 lockdep_assert_held(&mvm->mutex); 4746 4747 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4748 } 4749 4750 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4751 struct ieee80211_chanctx_conf *ctx) 4752 { 4753 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4754 4755 mutex_lock(&mvm->mutex); 4756 __iwl_mvm_remove_chanctx(mvm, ctx); 4757 mutex_unlock(&mvm->mutex); 4758 } 4759 4760 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4761 struct ieee80211_chanctx_conf *ctx, u32 changed) 4762 { 4763 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4764 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4765 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4766 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4767 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4768 4769 if (WARN_ONCE((phy_ctxt->ref > 1) && 4770 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4771 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4772 IEEE80211_CHANCTX_CHANGE_RADAR | 4773 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4774 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4775 phy_ctxt->ref, changed)) 4776 return; 4777 4778 mutex_lock(&mvm->mutex); 4779 4780 /* we are only changing the min_width, may be a noop */ 4781 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4782 if (phy_ctxt->width == def->width) 4783 goto out_unlock; 4784 4785 /* we are just toggling between 20_NOHT and 20 */ 4786 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4787 def->width <= NL80211_CHAN_WIDTH_20) 4788 goto out_unlock; 4789 } 4790 4791 iwl_mvm_bt_coex_vif_change(mvm); 4792 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4793 ctx->rx_chains_static, 4794 ctx->rx_chains_dynamic); 4795 4796 out_unlock: 4797 mutex_unlock(&mvm->mutex); 4798 } 4799 4800 /* 4801 * This function executes the common part for MLD and non-MLD modes. 4802 * 4803 * Returns true if we're done assigning the chanctx 4804 * (either on failure or success) 4805 */ 4806 static bool 4807 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4808 struct ieee80211_vif *vif, 4809 struct ieee80211_chanctx_conf *ctx, 4810 bool switching_chanctx, int *ret) 4811 { 4812 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4813 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4814 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4815 4816 lockdep_assert_held(&mvm->mutex); 4817 4818 mvmvif->deflink.phy_ctxt = phy_ctxt; 4819 4820 switch (vif->type) { 4821 case NL80211_IFTYPE_AP: 4822 /* only needed if we're switching chanctx (i.e. during CSA) */ 4823 if (switching_chanctx) { 4824 mvmvif->ap_ibss_active = true; 4825 break; 4826 } 4827 fallthrough; 4828 case NL80211_IFTYPE_ADHOC: 4829 /* 4830 * The AP binding flow is handled as part of the start_ap flow 4831 * (in bss_info_changed), similarly for IBSS. 4832 */ 4833 *ret = 0; 4834 return true; 4835 case NL80211_IFTYPE_STATION: 4836 break; 4837 case NL80211_IFTYPE_MONITOR: 4838 /* always disable PS when a monitor interface is active */ 4839 mvmvif->ps_disabled = true; 4840 break; 4841 default: 4842 *ret = -EINVAL; 4843 return true; 4844 } 4845 return false; 4846 } 4847 4848 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4849 struct ieee80211_vif *vif, 4850 struct ieee80211_bss_conf *link_conf, 4851 struct ieee80211_chanctx_conf *ctx, 4852 bool switching_chanctx) 4853 { 4854 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4855 int ret; 4856 4857 if (WARN_ON(!link_conf)) 4858 return -EINVAL; 4859 4860 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4861 switching_chanctx, &ret)) 4862 goto out; 4863 4864 ret = iwl_mvm_binding_add_vif(mvm, vif); 4865 if (ret) 4866 goto out; 4867 4868 /* 4869 * Power state must be updated before quotas, 4870 * otherwise fw will complain. 4871 */ 4872 iwl_mvm_power_update_mac(mvm); 4873 4874 /* Setting the quota at this stage is only required for monitor 4875 * interfaces. For the other types, the bss_info changed flow 4876 * will handle quota settings. 4877 */ 4878 if (vif->type == NL80211_IFTYPE_MONITOR) { 4879 mvmvif->monitor_active = true; 4880 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4881 if (ret) 4882 goto out_remove_binding; 4883 4884 ret = iwl_mvm_add_snif_sta(mvm, vif); 4885 if (ret) 4886 goto out_remove_binding; 4887 4888 } 4889 4890 /* Handle binding during CSA */ 4891 if (vif->type == NL80211_IFTYPE_AP) { 4892 iwl_mvm_update_quotas(mvm, false, NULL); 4893 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4894 } 4895 4896 if (vif->type == NL80211_IFTYPE_STATION) { 4897 if (!switching_chanctx) { 4898 mvmvif->csa_bcn_pending = false; 4899 goto out; 4900 } 4901 4902 mvmvif->csa_bcn_pending = true; 4903 4904 if (!fw_has_capa(&mvm->fw->ucode_capa, 4905 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4906 u32 duration = 3 * vif->bss_conf.beacon_int; 4907 4908 /* Protect the session to make sure we hear the first 4909 * beacon on the new channel. 4910 */ 4911 iwl_mvm_protect_session(mvm, vif, duration, duration, 4912 vif->bss_conf.beacon_int / 2, 4913 true); 4914 } 4915 4916 iwl_mvm_update_quotas(mvm, false, NULL); 4917 } 4918 4919 goto out; 4920 4921 out_remove_binding: 4922 iwl_mvm_binding_remove_vif(mvm, vif); 4923 iwl_mvm_power_update_mac(mvm); 4924 out: 4925 if (ret) 4926 mvmvif->deflink.phy_ctxt = NULL; 4927 return ret; 4928 } 4929 4930 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4931 struct ieee80211_vif *vif, 4932 struct ieee80211_bss_conf *link_conf, 4933 struct ieee80211_chanctx_conf *ctx) 4934 { 4935 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4936 int ret; 4937 4938 mutex_lock(&mvm->mutex); 4939 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 4940 mutex_unlock(&mvm->mutex); 4941 4942 return ret; 4943 } 4944 4945 /* 4946 * This function executes the common part for MLD and non-MLD modes. 4947 * 4948 * Returns if chanctx unassign chanctx is done 4949 * (either on failure or success) 4950 */ 4951 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 4952 struct ieee80211_vif *vif, 4953 bool switching_chanctx) 4954 { 4955 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4956 4957 lockdep_assert_held(&mvm->mutex); 4958 iwl_mvm_remove_time_event(mvm, mvmvif, 4959 &mvmvif->time_event_data); 4960 4961 switch (vif->type) { 4962 case NL80211_IFTYPE_ADHOC: 4963 return true; 4964 case NL80211_IFTYPE_MONITOR: 4965 mvmvif->monitor_active = false; 4966 mvmvif->ps_disabled = false; 4967 break; 4968 case NL80211_IFTYPE_AP: 4969 /* This part is triggered only during CSA */ 4970 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4971 return true; 4972 4973 mvmvif->csa_countdown = false; 4974 4975 /* Set CS bit on all the stations */ 4976 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4977 4978 /* Save blocked iface, the timeout is set on the next beacon */ 4979 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4980 4981 mvmvif->ap_ibss_active = false; 4982 break; 4983 default: 4984 break; 4985 } 4986 return false; 4987 } 4988 4989 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4990 struct ieee80211_vif *vif, 4991 struct ieee80211_bss_conf *link_conf, 4992 struct ieee80211_chanctx_conf *ctx, 4993 bool switching_chanctx) 4994 { 4995 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4996 struct ieee80211_vif *disabled_vif = NULL; 4997 4998 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 4999 goto out; 5000 5001 if (vif->type == NL80211_IFTYPE_MONITOR) 5002 iwl_mvm_rm_snif_sta(mvm, vif); 5003 5004 5005 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5006 disabled_vif = vif; 5007 if (!fw_has_capa(&mvm->fw->ucode_capa, 5008 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5009 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5010 } 5011 5012 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5013 iwl_mvm_binding_remove_vif(mvm, vif); 5014 5015 out: 5016 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5017 switching_chanctx) 5018 return; 5019 mvmvif->deflink.phy_ctxt = NULL; 5020 iwl_mvm_power_update_mac(mvm); 5021 } 5022 5023 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5024 struct ieee80211_vif *vif, 5025 struct ieee80211_bss_conf *link_conf, 5026 struct ieee80211_chanctx_conf *ctx) 5027 { 5028 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5029 5030 mutex_lock(&mvm->mutex); 5031 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5032 mutex_unlock(&mvm->mutex); 5033 } 5034 5035 static int 5036 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5037 struct ieee80211_vif_chanctx_switch *vifs, 5038 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5039 { 5040 int ret; 5041 5042 mutex_lock(&mvm->mutex); 5043 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5044 vifs[0].old_ctx, true); 5045 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5046 5047 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5048 if (ret) { 5049 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5050 goto out_reassign; 5051 } 5052 5053 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5054 vifs[0].new_ctx, true); 5055 if (ret) { 5056 IWL_ERR(mvm, 5057 "failed to assign new_ctx during channel switch\n"); 5058 goto out_remove; 5059 } 5060 5061 /* we don't support TDLS during DCM - can be caused by channel switch */ 5062 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5063 iwl_mvm_teardown_tdls_peers(mvm); 5064 5065 goto out; 5066 5067 out_remove: 5068 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5069 5070 out_reassign: 5071 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5072 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5073 goto out_restart; 5074 } 5075 5076 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5077 vifs[0].old_ctx, true)) { 5078 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5079 goto out_restart; 5080 } 5081 5082 goto out; 5083 5084 out_restart: 5085 /* things keep failing, better restart the hw */ 5086 iwl_mvm_nic_restart(mvm, false); 5087 5088 out: 5089 mutex_unlock(&mvm->mutex); 5090 5091 return ret; 5092 } 5093 5094 static int 5095 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5096 struct ieee80211_vif_chanctx_switch *vifs, 5097 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5098 { 5099 int ret; 5100 5101 mutex_lock(&mvm->mutex); 5102 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5103 vifs[0].old_ctx, true); 5104 5105 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5106 vifs[0].new_ctx, true); 5107 if (ret) { 5108 IWL_ERR(mvm, 5109 "failed to assign new_ctx during channel switch\n"); 5110 goto out_reassign; 5111 } 5112 5113 goto out; 5114 5115 out_reassign: 5116 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5117 vifs[0].old_ctx, true)) { 5118 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5119 goto out_restart; 5120 } 5121 5122 goto out; 5123 5124 out_restart: 5125 /* things keep failing, better restart the hw */ 5126 iwl_mvm_nic_restart(mvm, false); 5127 5128 out: 5129 mutex_unlock(&mvm->mutex); 5130 5131 return ret; 5132 } 5133 5134 /* Execute the common part for both MLD and non-MLD modes */ 5135 int 5136 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5137 struct ieee80211_vif_chanctx_switch *vifs, 5138 int n_vifs, 5139 enum ieee80211_chanctx_switch_mode mode, 5140 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5141 { 5142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5143 int ret; 5144 5145 /* we only support a single-vif right now */ 5146 if (n_vifs > 1) 5147 return -EOPNOTSUPP; 5148 5149 switch (mode) { 5150 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5151 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5152 break; 5153 case CHANCTX_SWMODE_REASSIGN_VIF: 5154 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5155 break; 5156 default: 5157 ret = -EOPNOTSUPP; 5158 break; 5159 } 5160 5161 return ret; 5162 } 5163 5164 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5165 struct ieee80211_vif_chanctx_switch *vifs, 5166 int n_vifs, 5167 enum ieee80211_chanctx_switch_mode mode) 5168 { 5169 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5170 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5171 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5172 }; 5173 5174 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5175 } 5176 5177 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5178 { 5179 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5180 5181 return mvm->ibss_manager; 5182 } 5183 5184 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5185 bool set) 5186 { 5187 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5188 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5189 5190 if (!mvm_sta || !mvm_sta->vif) { 5191 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5192 return -EINVAL; 5193 } 5194 5195 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5196 &mvm_sta->vif->bss_conf); 5197 } 5198 5199 #ifdef CONFIG_NL80211_TESTMODE 5200 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5201 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5202 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5203 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5204 }; 5205 5206 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5207 struct ieee80211_vif *vif, 5208 void *data, int len) 5209 { 5210 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5211 int err; 5212 u32 noa_duration; 5213 5214 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5215 iwl_mvm_tm_policy, NULL); 5216 if (err) 5217 return err; 5218 5219 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5220 return -EINVAL; 5221 5222 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5223 case IWL_MVM_TM_CMD_SET_NOA: 5224 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5225 !vif->bss_conf.enable_beacon || 5226 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5227 return -EINVAL; 5228 5229 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5230 if (noa_duration >= vif->bss_conf.beacon_int) 5231 return -EINVAL; 5232 5233 mvm->noa_duration = noa_duration; 5234 mvm->noa_vif = vif; 5235 5236 return iwl_mvm_update_quotas(mvm, true, NULL); 5237 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5238 /* must be associated client vif - ignore authorized */ 5239 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5240 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5241 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5242 return -EINVAL; 5243 5244 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5245 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5246 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5247 } 5248 5249 return -EOPNOTSUPP; 5250 } 5251 5252 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5253 struct ieee80211_vif *vif, 5254 void *data, int len) 5255 { 5256 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5257 int err; 5258 5259 mutex_lock(&mvm->mutex); 5260 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5261 mutex_unlock(&mvm->mutex); 5262 5263 return err; 5264 } 5265 #endif 5266 5267 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5268 struct ieee80211_channel_switch *chsw) 5269 { 5270 /* By implementing this operation, we prevent mac80211 from 5271 * starting its own channel switch timer, so that we can call 5272 * ieee80211_chswitch_done() ourselves at the right time 5273 * (which is when the absence time event starts). 5274 */ 5275 5276 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5277 "dummy channel switch op\n"); 5278 } 5279 5280 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5281 struct ieee80211_vif *vif, 5282 struct ieee80211_channel_switch *chsw) 5283 { 5284 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5285 struct iwl_chan_switch_te_cmd cmd = { 5286 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5287 mvmvif->color)), 5288 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5289 .tsf = cpu_to_le32(chsw->timestamp), 5290 .cs_count = chsw->count, 5291 .cs_mode = chsw->block_tx, 5292 }; 5293 5294 lockdep_assert_held(&mvm->mutex); 5295 5296 if (chsw->delay) 5297 cmd.cs_delayed_bcn_count = 5298 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5299 5300 return iwl_mvm_send_cmd_pdu(mvm, 5301 WIDE_ID(MAC_CONF_GROUP, 5302 CHANNEL_SWITCH_TIME_EVENT_CMD), 5303 0, sizeof(cmd), &cmd); 5304 } 5305 5306 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5307 struct ieee80211_vif *vif, 5308 struct ieee80211_channel_switch *chsw) 5309 { 5310 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5311 u32 apply_time; 5312 5313 /* Schedule the time event to a bit before beacon 1, 5314 * to make sure we're in the new channel when the 5315 * GO/AP arrives. In case count <= 1 immediately schedule the 5316 * TE (this might result with some packet loss or connection 5317 * loss). 5318 */ 5319 if (chsw->count <= 1) 5320 apply_time = 0; 5321 else 5322 apply_time = chsw->device_timestamp + 5323 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5324 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5325 5326 if (chsw->block_tx) 5327 iwl_mvm_csa_client_absent(mvm, vif); 5328 5329 if (mvmvif->bf_data.bf_enabled) { 5330 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5331 5332 if (ret) 5333 return ret; 5334 } 5335 5336 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5337 apply_time); 5338 5339 return 0; 5340 } 5341 5342 #define IWL_MAX_CSA_BLOCK_TX 1500 5343 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5344 struct ieee80211_vif *vif, 5345 struct ieee80211_channel_switch *chsw) 5346 { 5347 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5348 struct ieee80211_vif *csa_vif; 5349 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5350 int ret; 5351 5352 mutex_lock(&mvm->mutex); 5353 5354 mvmvif->csa_failed = false; 5355 5356 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5357 chsw->chandef.center_freq1); 5358 5359 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5360 ieee80211_vif_to_wdev(vif), 5361 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5362 5363 switch (vif->type) { 5364 case NL80211_IFTYPE_AP: 5365 csa_vif = 5366 rcu_dereference_protected(mvm->csa_vif, 5367 lockdep_is_held(&mvm->mutex)); 5368 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5369 "Another CSA is already in progress")) { 5370 ret = -EBUSY; 5371 goto out_unlock; 5372 } 5373 5374 /* we still didn't unblock tx. prevent new CS meanwhile */ 5375 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5376 lockdep_is_held(&mvm->mutex))) { 5377 ret = -EBUSY; 5378 goto out_unlock; 5379 } 5380 5381 rcu_assign_pointer(mvm->csa_vif, vif); 5382 5383 if (WARN_ONCE(mvmvif->csa_countdown, 5384 "Previous CSA countdown didn't complete")) { 5385 ret = -EBUSY; 5386 goto out_unlock; 5387 } 5388 5389 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5390 5391 break; 5392 case NL80211_IFTYPE_STATION: 5393 /* 5394 * In the new flow FW is in charge of timing the switch so there 5395 * is no need for all of this 5396 */ 5397 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5398 CHANNEL_SWITCH_ERROR_NOTIF, 5399 0)) 5400 break; 5401 5402 /* 5403 * We haven't configured the firmware to be associated yet since 5404 * we don't know the dtim period. In this case, the firmware can't 5405 * track the beacons. 5406 */ 5407 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5408 ret = -EBUSY; 5409 goto out_unlock; 5410 } 5411 5412 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5413 schedule_delayed_work(&mvmvif->csa_work, 0); 5414 5415 if (chsw->block_tx) { 5416 /* 5417 * In case of undetermined / long time with immediate 5418 * quiet monitor status to gracefully disconnect 5419 */ 5420 if (!chsw->count || 5421 chsw->count * vif->bss_conf.beacon_int > 5422 IWL_MAX_CSA_BLOCK_TX) 5423 schedule_delayed_work(&mvmvif->csa_work, 5424 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5425 } 5426 5427 if (!fw_has_capa(&mvm->fw->ucode_capa, 5428 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5429 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5430 if (ret) 5431 goto out_unlock; 5432 } else { 5433 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5434 } 5435 5436 mvmvif->csa_count = chsw->count; 5437 mvmvif->csa_misbehave = false; 5438 break; 5439 default: 5440 break; 5441 } 5442 5443 mvmvif->ps_disabled = true; 5444 5445 ret = iwl_mvm_power_update_ps(mvm); 5446 if (ret) 5447 goto out_unlock; 5448 5449 /* we won't be on this channel any longer */ 5450 iwl_mvm_teardown_tdls_peers(mvm); 5451 5452 out_unlock: 5453 mutex_unlock(&mvm->mutex); 5454 5455 return ret; 5456 } 5457 5458 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5459 struct ieee80211_vif *vif, 5460 struct ieee80211_channel_switch *chsw) 5461 { 5462 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5463 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5464 struct iwl_chan_switch_te_cmd cmd = { 5465 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5466 mvmvif->color)), 5467 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5468 .tsf = cpu_to_le32(chsw->timestamp), 5469 .cs_count = chsw->count, 5470 .cs_mode = chsw->block_tx, 5471 }; 5472 5473 /* 5474 * In the new flow FW is in charge of timing the switch so there is no 5475 * need for all of this 5476 */ 5477 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5478 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5479 return; 5480 5481 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5482 return; 5483 5484 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5485 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5486 5487 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5488 if (mvmvif->csa_misbehave) { 5489 /* Second time, give up on this AP*/ 5490 iwl_mvm_abort_channel_switch(hw, vif); 5491 ieee80211_chswitch_done(vif, false); 5492 mvmvif->csa_misbehave = false; 5493 return; 5494 } 5495 mvmvif->csa_misbehave = true; 5496 } 5497 mvmvif->csa_count = chsw->count; 5498 5499 mutex_lock(&mvm->mutex); 5500 if (mvmvif->csa_failed) 5501 goto out_unlock; 5502 5503 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5504 WIDE_ID(MAC_CONF_GROUP, 5505 CHANNEL_SWITCH_TIME_EVENT_CMD), 5506 0, sizeof(cmd), &cmd)); 5507 out_unlock: 5508 mutex_unlock(&mvm->mutex); 5509 } 5510 5511 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5512 { 5513 int i; 5514 5515 if (!iwl_mvm_has_new_tx_api(mvm)) { 5516 if (drop) { 5517 mutex_lock(&mvm->mutex); 5518 iwl_mvm_flush_tx_path(mvm, 5519 iwl_mvm_flushable_queues(mvm) & queues); 5520 mutex_unlock(&mvm->mutex); 5521 } else { 5522 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5523 } 5524 return; 5525 } 5526 5527 mutex_lock(&mvm->mutex); 5528 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5529 struct ieee80211_sta *sta; 5530 5531 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5532 lockdep_is_held(&mvm->mutex)); 5533 if (IS_ERR_OR_NULL(sta)) 5534 continue; 5535 5536 if (drop) 5537 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5538 else 5539 iwl_mvm_wait_sta_queues_empty(mvm, 5540 iwl_mvm_sta_from_mac80211(sta)); 5541 } 5542 mutex_unlock(&mvm->mutex); 5543 } 5544 5545 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5546 u32 queues, bool drop) 5547 { 5548 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5549 struct iwl_mvm_vif *mvmvif; 5550 struct iwl_mvm_sta *mvmsta; 5551 struct ieee80211_sta *sta; 5552 bool ap_sta_done = false; 5553 int i; 5554 u32 msk = 0; 5555 5556 if (!vif) { 5557 iwl_mvm_flush_no_vif(mvm, queues, drop); 5558 return; 5559 } 5560 5561 /* Make sure we're done with the deferred traffic before flushing */ 5562 flush_work(&mvm->add_stream_wk); 5563 5564 mutex_lock(&mvm->mutex); 5565 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5566 5567 /* flush the AP-station and all TDLS peers */ 5568 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5569 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5570 lockdep_is_held(&mvm->mutex)); 5571 if (IS_ERR_OR_NULL(sta)) 5572 continue; 5573 5574 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5575 if (mvmsta->vif != vif) 5576 continue; 5577 5578 if (sta == mvmvif->ap_sta) { 5579 if (ap_sta_done) 5580 continue; 5581 ap_sta_done = true; 5582 } 5583 5584 if (drop) { 5585 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5586 mvmsta->tfd_queue_msk)) 5587 IWL_ERR(mvm, "flush request fail\n"); 5588 } else { 5589 if (iwl_mvm_has_new_tx_api(mvm)) 5590 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5591 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5592 msk |= mvmsta->tfd_queue_msk; 5593 } 5594 } 5595 5596 mutex_unlock(&mvm->mutex); 5597 5598 /* this can take a while, and we may need/want other operations 5599 * to succeed while doing this, so do it without the mutex held 5600 */ 5601 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5602 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5603 } 5604 5605 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5606 struct ieee80211_sta *sta) 5607 { 5608 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5609 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5610 struct iwl_mvm_link_sta *mvm_link_sta; 5611 struct ieee80211_link_sta *link_sta; 5612 int link_id; 5613 5614 mutex_lock(&mvm->mutex); 5615 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5616 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5617 lockdep_is_held(&mvm->mutex)); 5618 if (!mvm_link_sta) 5619 continue; 5620 5621 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5622 mvmsta->tfd_queue_msk)) 5623 IWL_ERR(mvm, "flush request fail\n"); 5624 } 5625 mutex_unlock(&mvm->mutex); 5626 } 5627 5628 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5629 struct survey_info *survey) 5630 { 5631 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5632 int ret; 5633 5634 memset(survey, 0, sizeof(*survey)); 5635 5636 /* only support global statistics right now */ 5637 if (idx != 0) 5638 return -ENOENT; 5639 5640 if (!fw_has_capa(&mvm->fw->ucode_capa, 5641 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5642 return -ENOENT; 5643 5644 mutex_lock(&mvm->mutex); 5645 5646 if (iwl_mvm_firmware_running(mvm)) { 5647 ret = iwl_mvm_request_statistics(mvm, false); 5648 if (ret) 5649 goto out; 5650 } 5651 5652 survey->filled = SURVEY_INFO_TIME | 5653 SURVEY_INFO_TIME_RX | 5654 SURVEY_INFO_TIME_TX | 5655 SURVEY_INFO_TIME_SCAN; 5656 survey->time = mvm->accu_radio_stats.on_time_rf + 5657 mvm->radio_stats.on_time_rf; 5658 do_div(survey->time, USEC_PER_MSEC); 5659 5660 survey->time_rx = mvm->accu_radio_stats.rx_time + 5661 mvm->radio_stats.rx_time; 5662 do_div(survey->time_rx, USEC_PER_MSEC); 5663 5664 survey->time_tx = mvm->accu_radio_stats.tx_time + 5665 mvm->radio_stats.tx_time; 5666 do_div(survey->time_tx, USEC_PER_MSEC); 5667 5668 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5669 mvm->radio_stats.on_time_scan; 5670 do_div(survey->time_scan, USEC_PER_MSEC); 5671 5672 ret = 0; 5673 out: 5674 mutex_unlock(&mvm->mutex); 5675 return ret; 5676 } 5677 5678 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5679 { 5680 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5681 u32 gi_ltf; 5682 5683 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5684 case RATE_MCS_CHAN_WIDTH_20: 5685 rinfo->bw = RATE_INFO_BW_20; 5686 break; 5687 case RATE_MCS_CHAN_WIDTH_40: 5688 rinfo->bw = RATE_INFO_BW_40; 5689 break; 5690 case RATE_MCS_CHAN_WIDTH_80: 5691 rinfo->bw = RATE_INFO_BW_80; 5692 break; 5693 case RATE_MCS_CHAN_WIDTH_160: 5694 rinfo->bw = RATE_INFO_BW_160; 5695 break; 5696 case RATE_MCS_CHAN_WIDTH_320: 5697 rinfo->bw = RATE_INFO_BW_320; 5698 break; 5699 } 5700 5701 if (format == RATE_MCS_CCK_MSK || 5702 format == RATE_MCS_LEGACY_OFDM_MSK) { 5703 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5704 5705 /* add the offset needed to get to the legacy ofdm indices */ 5706 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5707 rate += IWL_FIRST_OFDM_RATE; 5708 5709 switch (rate) { 5710 case IWL_RATE_1M_INDEX: 5711 rinfo->legacy = 10; 5712 break; 5713 case IWL_RATE_2M_INDEX: 5714 rinfo->legacy = 20; 5715 break; 5716 case IWL_RATE_5M_INDEX: 5717 rinfo->legacy = 55; 5718 break; 5719 case IWL_RATE_11M_INDEX: 5720 rinfo->legacy = 110; 5721 break; 5722 case IWL_RATE_6M_INDEX: 5723 rinfo->legacy = 60; 5724 break; 5725 case IWL_RATE_9M_INDEX: 5726 rinfo->legacy = 90; 5727 break; 5728 case IWL_RATE_12M_INDEX: 5729 rinfo->legacy = 120; 5730 break; 5731 case IWL_RATE_18M_INDEX: 5732 rinfo->legacy = 180; 5733 break; 5734 case IWL_RATE_24M_INDEX: 5735 rinfo->legacy = 240; 5736 break; 5737 case IWL_RATE_36M_INDEX: 5738 rinfo->legacy = 360; 5739 break; 5740 case IWL_RATE_48M_INDEX: 5741 rinfo->legacy = 480; 5742 break; 5743 case IWL_RATE_54M_INDEX: 5744 rinfo->legacy = 540; 5745 } 5746 return; 5747 } 5748 5749 rinfo->nss = u32_get_bits(rate_n_flags, 5750 RATE_MCS_NSS_MSK) + 1; 5751 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5752 RATE_HT_MCS_INDEX(rate_n_flags) : 5753 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5754 5755 if (rate_n_flags & RATE_MCS_SGI_MSK) 5756 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5757 5758 switch (format) { 5759 case RATE_MCS_EHT_MSK: 5760 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5761 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5762 break; 5763 case RATE_MCS_HE_MSK: 5764 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5765 5766 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5767 5768 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5769 rinfo->bw = RATE_INFO_BW_HE_RU; 5770 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5771 } 5772 5773 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5774 case RATE_MCS_HE_TYPE_SU: 5775 case RATE_MCS_HE_TYPE_EXT_SU: 5776 if (gi_ltf == 0 || gi_ltf == 1) 5777 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5778 else if (gi_ltf == 2) 5779 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5780 else if (gi_ltf == 3) 5781 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5782 else 5783 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5784 break; 5785 case RATE_MCS_HE_TYPE_MU: 5786 if (gi_ltf == 0 || gi_ltf == 1) 5787 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5788 else if (gi_ltf == 2) 5789 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5790 else 5791 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5792 break; 5793 case RATE_MCS_HE_TYPE_TRIG: 5794 if (gi_ltf == 0 || gi_ltf == 1) 5795 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5796 else 5797 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5798 break; 5799 } 5800 5801 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5802 rinfo->he_dcm = 1; 5803 break; 5804 case RATE_MCS_HT_MSK: 5805 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5806 break; 5807 case RATE_MCS_VHT_MSK: 5808 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5809 break; 5810 } 5811 } 5812 5813 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5814 struct ieee80211_vif *vif, 5815 struct ieee80211_sta *sta, 5816 struct station_info *sinfo) 5817 { 5818 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5819 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5820 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5821 5822 if (mvmsta->deflink.avg_energy) { 5823 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5824 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5825 } 5826 5827 if (iwl_mvm_has_tlc_offload(mvm)) { 5828 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5829 5830 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5831 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5832 } 5833 5834 /* if beacon filtering isn't on mac80211 does it anyway */ 5835 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5836 return; 5837 5838 if (!vif->cfg.assoc) 5839 return; 5840 5841 mutex_lock(&mvm->mutex); 5842 5843 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5844 goto unlock; 5845 5846 if (iwl_mvm_request_statistics(mvm, false)) 5847 goto unlock; 5848 5849 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5850 mvmvif->deflink.beacon_stats.accu_num_beacons; 5851 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5852 if (mvmvif->deflink.beacon_stats.avg_signal) { 5853 /* firmware only reports a value after RXing a few beacons */ 5854 sinfo->rx_beacon_signal_avg = 5855 mvmvif->deflink.beacon_stats.avg_signal; 5856 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5857 } 5858 unlock: 5859 mutex_unlock(&mvm->mutex); 5860 } 5861 5862 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5863 struct ieee80211_vif *vif, 5864 const struct ieee80211_mlme_event *mlme) 5865 { 5866 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5867 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5868 iwl_dbg_tlv_time_point(&mvm->fwrt, 5869 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5870 NULL); 5871 return; 5872 } 5873 5874 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5875 iwl_dbg_tlv_time_point(&mvm->fwrt, 5876 IWL_FW_INI_TIME_POINT_DEASSOC, 5877 NULL); 5878 return; 5879 } 5880 } 5881 5882 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5883 struct ieee80211_vif *vif, 5884 const struct ieee80211_event *event) 5885 { 5886 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5887 do { \ 5888 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5889 break; \ 5890 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5891 } while (0) 5892 5893 struct iwl_fw_dbg_trigger_tlv *trig; 5894 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5895 5896 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5897 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5898 return; 5899 } 5900 5901 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5902 FW_DBG_TRIGGER_MLME); 5903 if (!trig) 5904 return; 5905 5906 trig_mlme = (void *)trig->data; 5907 5908 if (event->u.mlme.data == ASSOC_EVENT) { 5909 if (event->u.mlme.status == MLME_DENIED) 5910 CHECK_MLME_TRIGGER(stop_assoc_denied, 5911 "DENIED ASSOC: reason %d", 5912 event->u.mlme.reason); 5913 else if (event->u.mlme.status == MLME_TIMEOUT) 5914 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5915 "ASSOC TIMEOUT"); 5916 } else if (event->u.mlme.data == AUTH_EVENT) { 5917 if (event->u.mlme.status == MLME_DENIED) 5918 CHECK_MLME_TRIGGER(stop_auth_denied, 5919 "DENIED AUTH: reason %d", 5920 event->u.mlme.reason); 5921 else if (event->u.mlme.status == MLME_TIMEOUT) 5922 CHECK_MLME_TRIGGER(stop_auth_timeout, 5923 "AUTH TIMEOUT"); 5924 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5925 CHECK_MLME_TRIGGER(stop_rx_deauth, 5926 "DEAUTH RX %d", event->u.mlme.reason); 5927 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5928 CHECK_MLME_TRIGGER(stop_tx_deauth, 5929 "DEAUTH TX %d", event->u.mlme.reason); 5930 } 5931 #undef CHECK_MLME_TRIGGER 5932 } 5933 5934 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5935 struct ieee80211_vif *vif, 5936 const struct ieee80211_event *event) 5937 { 5938 struct iwl_fw_dbg_trigger_tlv *trig; 5939 struct iwl_fw_dbg_trigger_ba *ba_trig; 5940 5941 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5942 FW_DBG_TRIGGER_BA); 5943 if (!trig) 5944 return; 5945 5946 ba_trig = (void *)trig->data; 5947 5948 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5949 return; 5950 5951 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5952 "BAR received from %pM, tid %d, ssn %d", 5953 event->u.ba.sta->addr, event->u.ba.tid, 5954 event->u.ba.ssn); 5955 } 5956 5957 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5958 struct ieee80211_vif *vif, 5959 const struct ieee80211_event *event) 5960 { 5961 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5962 5963 switch (event->type) { 5964 case MLME_EVENT: 5965 iwl_mvm_event_mlme_callback(mvm, vif, event); 5966 break; 5967 case BAR_RX_EVENT: 5968 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5969 break; 5970 case BA_FRAME_TIMEOUT: 5971 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5972 event->u.ba.tid); 5973 break; 5974 default: 5975 break; 5976 } 5977 } 5978 5979 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5980 enum iwl_mvm_rxq_notif_type type, 5981 bool sync, 5982 const void *data, u32 size) 5983 { 5984 struct { 5985 struct iwl_rxq_sync_cmd cmd; 5986 struct iwl_mvm_internal_rxq_notif notif; 5987 } __packed cmd = { 5988 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 5989 .cmd.count = 5990 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 5991 size), 5992 .notif.type = type, 5993 .notif.sync = sync, 5994 }; 5995 struct iwl_host_cmd hcmd = { 5996 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 5997 .data[0] = &cmd, 5998 .len[0] = sizeof(cmd), 5999 .data[1] = data, 6000 .len[1] = size, 6001 .flags = sync ? 0 : CMD_ASYNC, 6002 }; 6003 int ret; 6004 6005 /* size must be a multiple of DWORD */ 6006 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6007 return; 6008 6009 if (!iwl_mvm_has_new_rx_api(mvm)) 6010 return; 6011 6012 if (sync) { 6013 cmd.notif.cookie = mvm->queue_sync_cookie; 6014 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6015 } 6016 6017 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6018 if (ret) { 6019 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6020 goto out; 6021 } 6022 6023 if (sync) { 6024 lockdep_assert_held(&mvm->mutex); 6025 ret = wait_event_timeout(mvm->rx_sync_waitq, 6026 READ_ONCE(mvm->queue_sync_state) == 0 || 6027 iwl_mvm_is_radio_killed(mvm), 6028 HZ); 6029 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6030 "queue sync: failed to sync, state is 0x%lx\n", 6031 mvm->queue_sync_state); 6032 } 6033 6034 out: 6035 if (sync) { 6036 mvm->queue_sync_state = 0; 6037 mvm->queue_sync_cookie++; 6038 } 6039 } 6040 6041 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6042 { 6043 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6044 6045 mutex_lock(&mvm->mutex); 6046 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6047 mutex_unlock(&mvm->mutex); 6048 } 6049 6050 int 6051 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6052 struct ieee80211_vif *vif, 6053 struct cfg80211_ftm_responder_stats *stats) 6054 { 6055 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6056 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6057 6058 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6059 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6060 return -EINVAL; 6061 6062 mutex_lock(&mvm->mutex); 6063 *stats = mvm->ftm_resp_stats; 6064 mutex_unlock(&mvm->mutex); 6065 6066 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6067 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6068 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6069 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6070 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6071 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6072 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6073 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6074 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6075 6076 return 0; 6077 } 6078 6079 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6080 struct cfg80211_pmsr_request *request) 6081 { 6082 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6083 int ret; 6084 6085 mutex_lock(&mvm->mutex); 6086 ret = iwl_mvm_ftm_start(mvm, vif, request); 6087 mutex_unlock(&mvm->mutex); 6088 6089 return ret; 6090 } 6091 6092 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6093 struct cfg80211_pmsr_request *request) 6094 { 6095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6096 6097 mutex_lock(&mvm->mutex); 6098 iwl_mvm_ftm_abort(mvm, request); 6099 mutex_unlock(&mvm->mutex); 6100 } 6101 6102 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6103 { 6104 u8 protocol = ip_hdr(skb)->protocol; 6105 6106 if (!IS_ENABLED(CONFIG_INET)) 6107 return false; 6108 6109 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6110 } 6111 6112 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6113 struct sk_buff *head, 6114 struct sk_buff *skb) 6115 { 6116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6117 6118 /* For now don't aggregate IPv6 in AMSDU */ 6119 if (skb->protocol != htons(ETH_P_IP)) 6120 return false; 6121 6122 if (!iwl_mvm_is_csum_supported(mvm)) 6123 return true; 6124 6125 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6126 } 6127 6128 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6129 struct ieee80211_vif *vif, 6130 struct cfg80211_set_hw_timestamp *hwts) 6131 { 6132 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6133 u32 protocols = 0; 6134 int ret; 6135 6136 /* HW timestamping is only supported for a specific station */ 6137 if (!hwts->macaddr) 6138 return -EOPNOTSUPP; 6139 6140 if (hwts->enable) 6141 protocols = 6142 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6143 6144 mutex_lock(&mvm->mutex); 6145 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6146 mutex_unlock(&mvm->mutex); 6147 6148 return ret; 6149 } 6150 6151 const struct ieee80211_ops iwl_mvm_hw_ops = { 6152 .tx = iwl_mvm_mac_tx, 6153 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6154 .ampdu_action = iwl_mvm_mac_ampdu_action, 6155 .get_antenna = iwl_mvm_op_get_antenna, 6156 .start = iwl_mvm_mac_start, 6157 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6158 .stop = iwl_mvm_mac_stop, 6159 .add_interface = iwl_mvm_mac_add_interface, 6160 .remove_interface = iwl_mvm_mac_remove_interface, 6161 .config = iwl_mvm_mac_config, 6162 .prepare_multicast = iwl_mvm_prepare_multicast, 6163 .configure_filter = iwl_mvm_configure_filter, 6164 .config_iface_filter = iwl_mvm_config_iface_filter, 6165 .bss_info_changed = iwl_mvm_bss_info_changed, 6166 .hw_scan = iwl_mvm_mac_hw_scan, 6167 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6168 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6169 .sta_state = iwl_mvm_mac_sta_state, 6170 .sta_notify = iwl_mvm_mac_sta_notify, 6171 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6172 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6173 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6174 .sta_rc_update = iwl_mvm_sta_rc_update, 6175 .conf_tx = iwl_mvm_mac_conf_tx, 6176 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6177 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6178 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6179 .flush = iwl_mvm_mac_flush, 6180 .flush_sta = iwl_mvm_mac_flush_sta, 6181 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6182 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6183 .set_key = iwl_mvm_mac_set_key, 6184 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6185 .remain_on_channel = iwl_mvm_roc, 6186 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6187 .add_chanctx = iwl_mvm_add_chanctx, 6188 .remove_chanctx = iwl_mvm_remove_chanctx, 6189 .change_chanctx = iwl_mvm_change_chanctx, 6190 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6191 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6192 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6193 6194 .start_ap = iwl_mvm_start_ap, 6195 .stop_ap = iwl_mvm_stop_ap, 6196 .join_ibss = iwl_mvm_start_ibss, 6197 .leave_ibss = iwl_mvm_stop_ibss, 6198 6199 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6200 6201 .set_tim = iwl_mvm_set_tim, 6202 6203 .channel_switch = iwl_mvm_channel_switch, 6204 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6205 .post_channel_switch = iwl_mvm_post_channel_switch, 6206 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6207 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6208 6209 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6210 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6211 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6212 6213 .event_callback = iwl_mvm_mac_event_callback, 6214 6215 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6216 6217 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6218 6219 #ifdef CONFIG_PM_SLEEP 6220 /* look at d3.c */ 6221 .suspend = iwl_mvm_suspend, 6222 .resume = iwl_mvm_resume, 6223 .set_wakeup = iwl_mvm_set_wakeup, 6224 .set_rekey_data = iwl_mvm_set_rekey_data, 6225 #if IS_ENABLED(CONFIG_IPV6) 6226 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6227 #endif 6228 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6229 #endif 6230 .get_survey = iwl_mvm_mac_get_survey, 6231 .sta_statistics = iwl_mvm_mac_sta_statistics, 6232 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6233 .start_pmsr = iwl_mvm_start_pmsr, 6234 .abort_pmsr = iwl_mvm_abort_pmsr, 6235 6236 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6237 #ifdef CONFIG_IWLWIFI_DEBUGFS 6238 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6239 #endif 6240 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6241 }; 6242