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_DISABLE_WEXT; 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 /* We want to use the mac80211's reorder buffer for 9000 */ 356 if (iwl_mvm_has_new_rx_api(mvm) && 357 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 358 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 359 360 if (fw_has_capa(&mvm->fw->ucode_capa, 361 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 362 ieee80211_hw_set(hw, AP_LINK_PS); 363 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 364 /* 365 * we absolutely need this for the new TX API since that comes 366 * with many more queues than the current code can deal with 367 * for station powersave 368 */ 369 return -EINVAL; 370 } 371 372 if (mvm->trans->num_rx_queues > 1) 373 ieee80211_hw_set(hw, USES_RSS); 374 375 if (mvm->trans->max_skb_frags) 376 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 377 378 hw->queues = IEEE80211_NUM_ACS; 379 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 380 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 381 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 382 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 383 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 384 385 hw->radiotap_timestamp.units_pos = 386 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 387 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 388 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 389 hw->radiotap_timestamp.accuracy = 22; 390 391 if (!iwl_mvm_has_tlc_offload(mvm)) 392 hw->rate_control_algorithm = RS_NAME; 393 394 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 395 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 396 hw->max_tx_fragments = mvm->trans->max_skb_frags; 397 398 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 399 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 400 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 401 hw->wiphy->cipher_suites = mvm->ciphers; 402 403 if (iwl_mvm_has_new_rx_api(mvm)) { 404 mvm->ciphers[hw->wiphy->n_cipher_suites] = 405 WLAN_CIPHER_SUITE_GCMP; 406 hw->wiphy->n_cipher_suites++; 407 mvm->ciphers[hw->wiphy->n_cipher_suites] = 408 WLAN_CIPHER_SUITE_GCMP_256; 409 hw->wiphy->n_cipher_suites++; 410 } 411 412 if (iwlwifi_mod_params.swcrypto) 413 IWL_ERR(mvm, 414 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 415 if (!iwlwifi_mod_params.bt_coex_active) 416 IWL_ERR(mvm, 417 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 418 419 ieee80211_hw_set(hw, MFP_CAPABLE); 420 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 421 hw->wiphy->n_cipher_suites++; 422 if (iwl_mvm_has_new_rx_api(mvm)) { 423 mvm->ciphers[hw->wiphy->n_cipher_suites] = 424 WLAN_CIPHER_SUITE_BIP_GMAC_128; 425 hw->wiphy->n_cipher_suites++; 426 mvm->ciphers[hw->wiphy->n_cipher_suites] = 427 WLAN_CIPHER_SUITE_BIP_GMAC_256; 428 hw->wiphy->n_cipher_suites++; 429 } 430 431 wiphy_ext_feature_set(hw->wiphy, 432 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 433 wiphy_ext_feature_set(hw->wiphy, 434 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 435 436 if (fw_has_capa(&mvm->fw->ucode_capa, 437 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 438 wiphy_ext_feature_set(hw->wiphy, 439 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 440 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 441 } 442 443 if (sec_key_ver && 444 fw_has_capa(&mvm->fw->ucode_capa, 445 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 446 wiphy_ext_feature_set(hw->wiphy, 447 NL80211_EXT_FEATURE_BEACON_PROTECTION); 448 else if (fw_has_capa(&mvm->fw->ucode_capa, 449 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 450 wiphy_ext_feature_set(hw->wiphy, 451 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 452 453 if (fw_has_capa(&mvm->fw->ucode_capa, 454 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 455 hw->wiphy->hw_timestamp_max_peers = 1; 456 457 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 458 hw->wiphy->features |= 459 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 460 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 461 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 462 463 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 464 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 465 hw->chanctx_data_size = sizeof(u16); 466 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 467 468 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 469 BIT(NL80211_IFTYPE_P2P_CLIENT) | 470 BIT(NL80211_IFTYPE_AP) | 471 BIT(NL80211_IFTYPE_P2P_GO) | 472 BIT(NL80211_IFTYPE_P2P_DEVICE) | 473 BIT(NL80211_IFTYPE_ADHOC); 474 475 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 476 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 477 478 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 479 * the hw, preventing us to control which key(id) to use per MPDU. 480 * Till that's fixed we can't use Extended Key ID for the newer cards. 481 */ 482 if (!iwl_mvm_has_new_tx_api(mvm)) 483 wiphy_ext_feature_set(hw->wiphy, 484 NL80211_EXT_FEATURE_EXT_KEY_ID); 485 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 486 487 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 488 if (iwl_mvm_is_lar_supported(mvm)) 489 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 490 else 491 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 492 REGULATORY_DISABLE_BEACON_HINTS; 493 494 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 495 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 496 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 497 498 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 499 hw->wiphy->n_iface_combinations = 500 ARRAY_SIZE(iwl_mvm_iface_combinations); 501 502 hw->wiphy->max_remain_on_channel_duration = 10000; 503 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 504 505 /* Extract MAC address */ 506 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 507 hw->wiphy->addresses = mvm->addresses; 508 hw->wiphy->n_addresses = 1; 509 510 /* Extract additional MAC addresses if available */ 511 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 512 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 513 514 for (i = 1; i < num_mac; i++) { 515 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 516 ETH_ALEN); 517 mvm->addresses[i].addr[5]++; 518 hw->wiphy->n_addresses++; 519 } 520 521 iwl_mvm_reset_phy_ctxts(mvm); 522 523 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 524 525 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 526 527 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 528 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 529 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 530 531 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 532 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 533 else 534 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 535 536 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 537 hw->wiphy->bands[NL80211_BAND_2GHZ] = 538 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 539 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 540 hw->wiphy->bands[NL80211_BAND_5GHZ] = 541 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 542 543 if (fw_has_capa(&mvm->fw->ucode_capa, 544 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 545 fw_has_api(&mvm->fw->ucode_capa, 546 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 547 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 548 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 549 } 550 if (fw_has_capa(&mvm->fw->ucode_capa, 551 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 552 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 553 hw->wiphy->bands[NL80211_BAND_6GHZ] = 554 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 555 556 hw->wiphy->hw_version = mvm->trans->hw_id; 557 558 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 559 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 560 else 561 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 562 563 hw->wiphy->max_sched_scan_reqs = 1; 564 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 565 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 566 /* we create the 802.11 header and zero length SSID IE. */ 567 hw->wiphy->max_sched_scan_ie_len = 568 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 569 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 570 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 571 572 /* 573 * the firmware uses u8 for num of iterations, but 0xff is saved for 574 * infinite loop, so the maximum number of iterations is actually 254. 575 */ 576 hw->wiphy->max_sched_scan_plan_iterations = 254; 577 578 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 579 NL80211_FEATURE_LOW_PRIORITY_SCAN | 580 NL80211_FEATURE_P2P_GO_OPPPS | 581 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 582 NL80211_FEATURE_DYNAMIC_SMPS | 583 NL80211_FEATURE_STATIC_SMPS | 584 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 585 586 if (fw_has_capa(&mvm->fw->ucode_capa, 587 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 588 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 589 if (fw_has_capa(&mvm->fw->ucode_capa, 590 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 591 hw->wiphy->features |= NL80211_FEATURE_QUIET; 592 593 if (fw_has_capa(&mvm->fw->ucode_capa, 594 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 595 hw->wiphy->features |= 596 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 597 598 if (fw_has_capa(&mvm->fw->ucode_capa, 599 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 600 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 601 602 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 603 IWL_FW_CMD_VER_UNKNOWN) >= 3) 604 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 605 606 if (fw_has_api(&mvm->fw->ucode_capa, 607 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 608 wiphy_ext_feature_set(hw->wiphy, 609 NL80211_EXT_FEATURE_SCAN_START_TIME); 610 wiphy_ext_feature_set(hw->wiphy, 611 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 612 } 613 614 if (iwl_mvm_is_oce_supported(mvm)) { 615 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 616 617 wiphy_ext_feature_set(hw->wiphy, 618 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 619 wiphy_ext_feature_set(hw->wiphy, 620 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 621 wiphy_ext_feature_set(hw->wiphy, 622 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 623 624 /* Old firmware also supports probe deferral and suppression */ 625 if (scan_ver < 15) 626 wiphy_ext_feature_set(hw->wiphy, 627 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 628 } 629 630 hw->wiphy->iftype_ext_capab = NULL; 631 hw->wiphy->num_iftype_ext_capab = 0; 632 633 if (mvm->nvm_data->sku_cap_11ax_enable && 634 !iwlwifi_mod_params.disable_11ax) { 635 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 636 hw->wiphy->num_iftype_ext_capab = 637 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 638 639 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 640 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 641 } 642 643 if (iwl_fw_lookup_cmd_ver(mvm->fw, 644 WIDE_ID(DATA_PATH_GROUP, 645 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 646 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 647 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 648 649 if (!hw->wiphy->iftype_ext_capab) { 650 hw->wiphy->num_iftype_ext_capab = 1; 651 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 652 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 653 } else { 654 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 655 } 656 } 657 658 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 659 660 #ifdef CONFIG_PM_SLEEP 661 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 662 mvm->trans->ops->d3_suspend && 663 mvm->trans->ops->d3_resume && 664 device_can_wakeup(mvm->trans->dev)) { 665 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 666 WIPHY_WOWLAN_DISCONNECT | 667 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 668 WIPHY_WOWLAN_RFKILL_RELEASE | 669 WIPHY_WOWLAN_NET_DETECT; 670 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 671 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 672 WIPHY_WOWLAN_4WAY_HANDSHAKE; 673 674 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 675 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 676 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 677 mvm->wowlan.max_nd_match_sets = 678 iwl_umac_scan_get_max_profiles(mvm->fw); 679 hw->wiphy->wowlan = &mvm->wowlan; 680 } 681 #endif 682 683 ret = iwl_mvm_leds_init(mvm); 684 if (ret) 685 return ret; 686 687 if (fw_has_capa(&mvm->fw->ucode_capa, 688 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 689 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 690 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 691 ieee80211_hw_set(hw, TDLS_WIDER_BW); 692 } 693 694 if (fw_has_capa(&mvm->fw->ucode_capa, 695 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 696 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 697 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 698 } 699 700 hw->netdev_features |= mvm->cfg->features; 701 if (!iwl_mvm_is_csum_supported(mvm)) 702 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 703 704 if (mvm->cfg->vht_mu_mimo_supported) 705 wiphy_ext_feature_set(hw->wiphy, 706 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 707 708 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 709 wiphy_ext_feature_set(hw->wiphy, 710 NL80211_EXT_FEATURE_PROTECTED_TWT); 711 712 iwl_mvm_vendor_cmds_register(mvm); 713 714 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 715 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 716 717 ret = ieee80211_register_hw(mvm->hw); 718 if (ret) { 719 iwl_mvm_leds_exit(mvm); 720 } 721 722 return ret; 723 } 724 725 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 726 struct ieee80211_sta *sta) 727 { 728 if (likely(sta)) { 729 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 730 return; 731 } else { 732 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 733 return; 734 } 735 736 ieee80211_free_txskb(mvm->hw, skb); 737 } 738 739 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 740 struct ieee80211_tx_control *control, struct sk_buff *skb) 741 { 742 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 743 struct ieee80211_sta *sta = control->sta; 744 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 745 struct ieee80211_hdr *hdr = (void *)skb->data; 746 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 747 IEEE80211_TX_CTL_TX_OFFCHAN; 748 u32 link_id = u32_get_bits(info->control.flags, 749 IEEE80211_TX_CTRL_MLO_LINK); 750 struct ieee80211_sta *tmp_sta = sta; 751 752 if (iwl_mvm_is_radio_killed(mvm)) { 753 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 754 goto drop; 755 } 756 757 if (offchannel && 758 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 759 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 760 goto drop; 761 762 /* 763 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 764 * so we treat the others as broadcast 765 */ 766 if (ieee80211_is_mgmt(hdr->frame_control)) 767 sta = NULL; 768 769 /* this shouldn't even happen: just drop */ 770 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 771 !offchannel) 772 goto drop; 773 774 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 775 !ieee80211_is_probe_resp(hdr->frame_control)) { 776 /* translate MLD addresses to LINK addresses */ 777 struct ieee80211_link_sta *link_sta = 778 rcu_dereference(tmp_sta->link[link_id]); 779 struct ieee80211_bss_conf *link_conf = 780 rcu_dereference(info->control.vif->link_conf[link_id]); 781 struct ieee80211_mgmt *mgmt; 782 783 if (WARN_ON(!link_sta || !link_conf)) 784 goto drop; 785 786 /* if sta is NULL, the frame is a management frame */ 787 mgmt = (void *)hdr; 788 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 789 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 790 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 791 } 792 793 iwl_mvm_tx_skb(mvm, skb, sta); 794 return; 795 drop: 796 ieee80211_free_txskb(hw, skb); 797 } 798 799 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 800 { 801 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 802 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 803 struct sk_buff *skb = NULL; 804 805 /* 806 * No need for threads to be pending here, they can leave the first 807 * taker all the work. 808 * 809 * mvmtxq->tx_request logic: 810 * 811 * If 0, no one is currently TXing, set to 1 to indicate current thread 812 * will now start TX and other threads should quit. 813 * 814 * If 1, another thread is currently TXing, set to 2 to indicate to 815 * that thread that there was another request. Since that request may 816 * have raced with the check whether the queue is empty, the TXing 817 * thread should check the queue's status one more time before leaving. 818 * This check is done in order to not leave any TX hanging in the queue 819 * until the next TX invocation (which may not even happen). 820 * 821 * If 2, another thread is currently TXing, and it will already double 822 * check the queue, so do nothing. 823 */ 824 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 825 return; 826 827 rcu_read_lock(); 828 do { 829 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 830 &mvmtxq->state) && 831 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 832 &mvmtxq->state) && 833 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 834 skb = ieee80211_tx_dequeue(hw, txq); 835 836 if (!skb) { 837 if (txq->sta) 838 IWL_DEBUG_TX(mvm, 839 "TXQ of sta %pM tid %d is now empty\n", 840 txq->sta->addr, 841 txq->tid); 842 break; 843 } 844 845 iwl_mvm_tx_skb(mvm, skb, txq->sta); 846 } 847 } while (atomic_dec_return(&mvmtxq->tx_request)); 848 rcu_read_unlock(); 849 } 850 851 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 852 struct ieee80211_txq *txq) 853 { 854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 855 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 856 857 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 858 !txq->sta) { 859 iwl_mvm_mac_itxq_xmit(hw, txq); 860 return; 861 } 862 863 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 864 * to handle any packets we leave on the txq now 865 */ 866 867 spin_lock_bh(&mvm->add_stream_lock); 868 /* The list is being deleted only after the queue is fully allocated. */ 869 if (list_empty(&mvmtxq->list) && 870 /* recheck under lock */ 871 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 872 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 873 schedule_work(&mvm->add_stream_wk); 874 } 875 spin_unlock_bh(&mvm->add_stream_lock); 876 } 877 878 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 879 do { \ 880 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 881 break; \ 882 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 883 } while (0) 884 885 static void 886 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 887 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 888 enum ieee80211_ampdu_mlme_action action) 889 { 890 struct iwl_fw_dbg_trigger_tlv *trig; 891 struct iwl_fw_dbg_trigger_ba *ba_trig; 892 893 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 894 FW_DBG_TRIGGER_BA); 895 if (!trig) 896 return; 897 898 ba_trig = (void *)trig->data; 899 900 switch (action) { 901 case IEEE80211_AMPDU_TX_OPERATIONAL: { 902 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 903 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 904 905 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 906 "TX AGG START: MAC %pM tid %d ssn %d\n", 907 sta->addr, tid, tid_data->ssn); 908 break; 909 } 910 case IEEE80211_AMPDU_TX_STOP_CONT: 911 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 912 "TX AGG STOP: MAC %pM tid %d\n", 913 sta->addr, tid); 914 break; 915 case IEEE80211_AMPDU_RX_START: 916 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 917 "RX AGG START: MAC %pM tid %d ssn %d\n", 918 sta->addr, tid, rx_ba_ssn); 919 break; 920 case IEEE80211_AMPDU_RX_STOP: 921 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 922 "RX AGG STOP: MAC %pM tid %d\n", 923 sta->addr, tid); 924 break; 925 default: 926 break; 927 } 928 } 929 930 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 931 struct ieee80211_vif *vif, 932 struct ieee80211_ampdu_params *params) 933 { 934 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 935 int ret; 936 struct ieee80211_sta *sta = params->sta; 937 enum ieee80211_ampdu_mlme_action action = params->action; 938 u16 tid = params->tid; 939 u16 *ssn = ¶ms->ssn; 940 u16 buf_size = params->buf_size; 941 bool amsdu = params->amsdu; 942 u16 timeout = params->timeout; 943 944 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 945 sta->addr, tid, action); 946 947 if (!(mvm->nvm_data->sku_cap_11n_enable)) 948 return -EACCES; 949 950 mutex_lock(&mvm->mutex); 951 952 switch (action) { 953 case IEEE80211_AMPDU_RX_START: 954 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 955 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 956 struct iwl_mvm_vif *mvmvif; 957 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 958 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 959 960 mdata->opened_rx_ba_sessions = true; 961 mvmvif = iwl_mvm_vif_from_mac80211(vif); 962 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 963 } 964 if (!iwl_enable_rx_ampdu()) { 965 ret = -EINVAL; 966 break; 967 } 968 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 969 timeout); 970 break; 971 case IEEE80211_AMPDU_RX_STOP: 972 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 973 timeout); 974 break; 975 case IEEE80211_AMPDU_TX_START: 976 if (!iwl_enable_tx_ampdu()) { 977 ret = -EINVAL; 978 break; 979 } 980 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 981 break; 982 case IEEE80211_AMPDU_TX_STOP_CONT: 983 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 984 break; 985 case IEEE80211_AMPDU_TX_STOP_FLUSH: 986 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 987 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 988 break; 989 case IEEE80211_AMPDU_TX_OPERATIONAL: 990 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 991 buf_size, amsdu); 992 break; 993 default: 994 WARN_ON_ONCE(1); 995 ret = -EINVAL; 996 break; 997 } 998 999 if (!ret) { 1000 u16 rx_ba_ssn = 0; 1001 1002 if (action == IEEE80211_AMPDU_RX_START) 1003 rx_ba_ssn = *ssn; 1004 1005 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1006 rx_ba_ssn, action); 1007 } 1008 mutex_unlock(&mvm->mutex); 1009 1010 return ret; 1011 } 1012 1013 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1014 struct ieee80211_vif *vif) 1015 { 1016 struct iwl_mvm *mvm = data; 1017 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1018 struct iwl_probe_resp_data *probe_data; 1019 unsigned int link_id; 1020 1021 mvmvif->uploaded = false; 1022 1023 spin_lock_bh(&mvm->time_event_lock); 1024 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1025 spin_unlock_bh(&mvm->time_event_lock); 1026 1027 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1028 mvmvif->ap_sta = NULL; 1029 1030 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1031 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1032 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1033 mvmvif->link[link_id]->phy_ctxt = NULL; 1034 mvmvif->link[link_id]->active = 0; 1035 mvmvif->link[link_id]->igtk = NULL; 1036 } 1037 1038 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1039 lockdep_is_held(&mvm->mutex)); 1040 if (probe_data) 1041 kfree_rcu(probe_data, rcu_head); 1042 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1043 } 1044 1045 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1046 { 1047 struct iwl_mvm *mvm = data; 1048 struct iwl_mvm_sta *mvm_sta; 1049 struct ieee80211_vif *vif; 1050 int link_id; 1051 1052 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1053 vif = mvm_sta->vif; 1054 1055 if (!sta->valid_links) 1056 return; 1057 1058 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1059 struct iwl_mvm_link_sta *mvm_link_sta; 1060 1061 mvm_link_sta = 1062 rcu_dereference_check(mvm_sta->link[link_id], 1063 lockdep_is_held(&mvm->mutex)); 1064 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1065 /* 1066 * We have a link STA but the link is inactive in 1067 * mac80211. This will happen if we failed to 1068 * deactivate the link but mac80211 roll back the 1069 * deactivation of the link. 1070 * Delete the stale data to avoid issues later on. 1071 */ 1072 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1073 link_id, false); 1074 } 1075 } 1076 } 1077 1078 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1079 { 1080 iwl_mvm_stop_device(mvm); 1081 1082 mvm->cur_aid = 0; 1083 1084 mvm->scan_status = 0; 1085 mvm->ps_disabled = false; 1086 mvm->rfkill_safe_init_done = false; 1087 1088 /* just in case one was running */ 1089 iwl_mvm_cleanup_roc_te(mvm); 1090 ieee80211_remain_on_channel_expired(mvm->hw); 1091 1092 iwl_mvm_ftm_restart(mvm); 1093 1094 /* 1095 * cleanup all interfaces, even inactive ones, as some might have 1096 * gone down during the HW restart 1097 */ 1098 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1099 1100 /* cleanup stations as links may be gone after restart */ 1101 ieee80211_iterate_stations_atomic(mvm->hw, 1102 iwl_mvm_cleanup_sta_iterator, mvm); 1103 1104 mvm->p2p_device_vif = NULL; 1105 1106 iwl_mvm_reset_phy_ctxts(mvm); 1107 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1108 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1109 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1110 1111 ieee80211_wake_queues(mvm->hw); 1112 1113 mvm->rx_ba_sessions = 0; 1114 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1115 mvm->monitor_on = false; 1116 #ifdef CONFIG_IWLWIFI_DEBUGFS 1117 mvm->beacon_inject_active = false; 1118 #endif 1119 1120 /* keep statistics ticking */ 1121 iwl_mvm_accu_radio_stats(mvm); 1122 } 1123 1124 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1125 { 1126 int ret; 1127 1128 lockdep_assert_held(&mvm->mutex); 1129 1130 ret = iwl_mvm_mei_get_ownership(mvm); 1131 if (ret) 1132 return ret; 1133 1134 if (mvm->mei_nvm_data) { 1135 /* We got the NIC, we can now free the MEI NVM data */ 1136 kfree(mvm->mei_nvm_data); 1137 mvm->mei_nvm_data = NULL; 1138 1139 /* 1140 * We can't free the nvm_data we allocated based on the SAP 1141 * data because we registered to cfg80211 with the channels 1142 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1143 * just in order to be able free it later. 1144 * NULLify nvm_data so that we will read the NVM from the 1145 * firmware this time. 1146 */ 1147 mvm->temp_nvm_data = mvm->nvm_data; 1148 mvm->nvm_data = NULL; 1149 } 1150 1151 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1152 /* 1153 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1154 * so later code will - from now on - see that we're doing it. 1155 */ 1156 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1157 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1158 /* Clean up some internal and mac80211 state on restart */ 1159 iwl_mvm_restart_cleanup(mvm); 1160 } 1161 ret = iwl_mvm_up(mvm); 1162 1163 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1164 NULL); 1165 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1166 NULL); 1167 1168 mvm->last_reset_or_resume_time_jiffies = jiffies; 1169 1170 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1171 /* Something went wrong - we need to finish some cleanup 1172 * that normally iwl_mvm_mac_restart_complete() below 1173 * would do. 1174 */ 1175 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1176 } 1177 1178 return ret; 1179 } 1180 1181 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1182 { 1183 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1184 int ret; 1185 int retry, max_retry = 0; 1186 1187 mutex_lock(&mvm->mutex); 1188 1189 /* we are starting the mac not in error flow, and restart is enabled */ 1190 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1191 iwlwifi_mod_params.fw_restart) { 1192 max_retry = IWL_MAX_INIT_RETRY; 1193 /* 1194 * This will prevent mac80211 recovery flows to trigger during 1195 * init failures 1196 */ 1197 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1198 } 1199 1200 for (retry = 0; retry <= max_retry; retry++) { 1201 ret = __iwl_mvm_mac_start(mvm); 1202 if (!ret) 1203 break; 1204 1205 /* 1206 * In PLDR sync PCI re-enumeration is needed. no point to retry 1207 * mac start before that. 1208 */ 1209 if (mvm->pldr_sync) { 1210 iwl_mei_alive_notif(false); 1211 iwl_trans_pcie_remove(mvm->trans, true); 1212 break; 1213 } 1214 1215 IWL_ERR(mvm, "mac start retry %d\n", retry); 1216 } 1217 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1218 1219 mutex_unlock(&mvm->mutex); 1220 1221 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1222 1223 return ret; 1224 } 1225 1226 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1227 { 1228 int ret; 1229 1230 mutex_lock(&mvm->mutex); 1231 1232 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1233 1234 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1235 if (ret) 1236 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1237 ret); 1238 1239 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1240 1241 /* 1242 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1243 * of packets the FW sent out, so we must reconnect. 1244 */ 1245 iwl_mvm_teardown_tdls_peers(mvm); 1246 1247 mutex_unlock(&mvm->mutex); 1248 } 1249 1250 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1251 enum ieee80211_reconfig_type reconfig_type) 1252 { 1253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1254 1255 switch (reconfig_type) { 1256 case IEEE80211_RECONFIG_TYPE_RESTART: 1257 iwl_mvm_restart_complete(mvm); 1258 break; 1259 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1260 break; 1261 } 1262 } 1263 1264 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1265 { 1266 lockdep_assert_held(&mvm->mutex); 1267 1268 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1269 1270 /* firmware counters are obviously reset now, but we shouldn't 1271 * partially track so also clear the fw_reset_accu counters. 1272 */ 1273 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1274 1275 /* async_handlers_wk is now blocked */ 1276 1277 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1278 iwl_mvm_rm_aux_sta(mvm); 1279 1280 iwl_mvm_stop_device(mvm); 1281 1282 iwl_mvm_async_handlers_purge(mvm); 1283 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1284 1285 /* 1286 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1287 * hw (as restart_complete() won't be called in this case) and mac80211 1288 * won't execute the restart. 1289 * But make sure to cleanup interfaces that have gone down before/during 1290 * HW restart was requested. 1291 */ 1292 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1293 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1294 &mvm->status)) 1295 ieee80211_iterate_interfaces(mvm->hw, 0, 1296 iwl_mvm_cleanup_iterator, mvm); 1297 1298 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1299 * make sure there's nothing left there and warn if any is found. 1300 */ 1301 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1302 int i; 1303 1304 for (i = 0; i < mvm->max_scans; i++) { 1305 if (WARN_ONCE(mvm->scan_uid_status[i], 1306 "UMAC scan UID %d status was not cleaned\n", 1307 i)) 1308 mvm->scan_uid_status[i] = 0; 1309 } 1310 } 1311 } 1312 1313 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1314 { 1315 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1316 1317 flush_work(&mvm->async_handlers_wk); 1318 flush_work(&mvm->add_stream_wk); 1319 1320 /* 1321 * Lock and clear the firmware running bit here already, so that 1322 * new commands coming in elsewhere, e.g. from debugfs, will not 1323 * be able to proceed. This is important here because one of those 1324 * debugfs files causes the firmware dump to be triggered, and if we 1325 * don't stop debugfs accesses before canceling that it could be 1326 * retriggered after we flush it but before we've cleared the bit. 1327 */ 1328 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1329 1330 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1331 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1332 1333 /* 1334 * The work item could be running or queued if the 1335 * ROC time event stops just as we get here. 1336 */ 1337 flush_work(&mvm->roc_done_wk); 1338 1339 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1340 1341 mutex_lock(&mvm->mutex); 1342 __iwl_mvm_mac_stop(mvm); 1343 mutex_unlock(&mvm->mutex); 1344 1345 /* 1346 * The worker might have been waiting for the mutex, let it run and 1347 * discover that its list is now empty. 1348 */ 1349 cancel_work_sync(&mvm->async_handlers_wk); 1350 } 1351 1352 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1353 { 1354 u16 i; 1355 1356 lockdep_assert_held(&mvm->mutex); 1357 1358 for (i = 0; i < NUM_PHY_CTX; i++) 1359 if (!mvm->phy_ctxts[i].ref) 1360 return &mvm->phy_ctxts[i]; 1361 1362 IWL_ERR(mvm, "No available PHY context\n"); 1363 return NULL; 1364 } 1365 1366 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1367 s16 tx_power) 1368 { 1369 u32 cmd_id = REDUCE_TX_POWER_CMD; 1370 int len; 1371 struct iwl_dev_tx_power_cmd cmd = { 1372 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1373 .common.mac_context_id = 1374 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1375 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1376 }; 1377 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1378 IWL_FW_CMD_VER_UNKNOWN); 1379 1380 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1381 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1382 1383 if (cmd_ver == 7) 1384 len = sizeof(cmd.v7); 1385 else if (cmd_ver == 6) 1386 len = sizeof(cmd.v6); 1387 else if (fw_has_api(&mvm->fw->ucode_capa, 1388 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1389 len = sizeof(cmd.v5); 1390 else if (fw_has_capa(&mvm->fw->ucode_capa, 1391 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1392 len = sizeof(cmd.v4); 1393 else 1394 len = sizeof(cmd.v3); 1395 1396 /* all structs have the same common part, add it */ 1397 len += sizeof(cmd.common); 1398 1399 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1400 } 1401 1402 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1403 struct ieee80211_vif *vif) 1404 { 1405 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1406 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1407 int ret; 1408 1409 mutex_lock(&mvm->mutex); 1410 1411 if (vif->type == NL80211_IFTYPE_STATION) { 1412 struct iwl_mvm_sta *mvmsta; 1413 1414 mvmvif->csa_bcn_pending = false; 1415 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1416 mvmvif->deflink.ap_sta_id); 1417 1418 if (WARN_ON(!mvmsta)) { 1419 ret = -EIO; 1420 goto out_unlock; 1421 } 1422 1423 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1424 if (mvm->mld_api_is_used) 1425 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1426 else 1427 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1428 1429 if (!fw_has_capa(&mvm->fw->ucode_capa, 1430 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1431 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1432 if (ret) 1433 goto out_unlock; 1434 1435 iwl_mvm_stop_session_protection(mvm, vif); 1436 } 1437 } 1438 1439 mvmvif->ps_disabled = false; 1440 1441 ret = iwl_mvm_power_update_ps(mvm); 1442 1443 out_unlock: 1444 if (mvmvif->csa_failed) 1445 ret = -EIO; 1446 mutex_unlock(&mvm->mutex); 1447 1448 return ret; 1449 } 1450 1451 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1452 struct ieee80211_vif *vif) 1453 { 1454 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1455 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1456 struct iwl_chan_switch_te_cmd cmd = { 1457 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1458 mvmvif->color)), 1459 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1460 }; 1461 1462 /* 1463 * In the new flow since FW is in charge of the timing, 1464 * if driver has canceled the channel switch he will receive the 1465 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1466 */ 1467 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1468 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1469 return; 1470 1471 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1472 1473 mutex_lock(&mvm->mutex); 1474 if (!fw_has_capa(&mvm->fw->ucode_capa, 1475 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1476 iwl_mvm_remove_csa_period(mvm, vif); 1477 else 1478 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1479 WIDE_ID(MAC_CONF_GROUP, 1480 CHANNEL_SWITCH_TIME_EVENT_CMD), 1481 0, sizeof(cmd), &cmd)); 1482 mvmvif->csa_failed = true; 1483 mutex_unlock(&mvm->mutex); 1484 1485 iwl_mvm_post_channel_switch(hw, vif); 1486 } 1487 1488 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1489 { 1490 struct iwl_mvm_vif *mvmvif; 1491 struct ieee80211_vif *vif; 1492 1493 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1494 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1495 1496 /* Trigger disconnect (should clear the CSA state) */ 1497 ieee80211_chswitch_done(vif, false); 1498 } 1499 1500 static u8 1501 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1502 { 1503 int data_start; 1504 int control_start; 1505 int bw; 1506 1507 if (chandef->width == NL80211_CHAN_WIDTH_320) 1508 bw = 320; 1509 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1510 bw = 160; 1511 else 1512 return 0; 1513 1514 /* data is bw wide so the start is half the width */ 1515 data_start = chandef->center_freq1 - bw / 2; 1516 /* control is 20Mhz width */ 1517 control_start = chandef->chan->center_freq - 10; 1518 1519 return (control_start - data_start) / 80; 1520 } 1521 1522 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1523 struct ieee80211_vif *vif) 1524 { 1525 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1526 int ret; 1527 1528 lockdep_assert_held(&mvm->mutex); 1529 1530 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1531 if (ret) { 1532 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1533 return ret; 1534 } 1535 1536 /* Only queue for this station is the mcast queue, 1537 * which shouldn't be in TFD mask anyway 1538 */ 1539 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1540 vif->type, 1541 IWL_STA_MULTICAST); 1542 } 1543 1544 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1545 { 1546 lockdep_assert_held(&mvm->mutex); 1547 1548 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1549 return; 1550 1551 INIT_DELAYED_WORK(&mvmvif->csa_work, 1552 iwl_mvm_channel_switch_disconnect_wk); 1553 } 1554 1555 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1556 struct ieee80211_vif *vif) 1557 { 1558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1559 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1560 int ret; 1561 1562 mutex_lock(&mvm->mutex); 1563 1564 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1565 1566 mvmvif->mvm = mvm; 1567 1568 /* the first link always points to the default one */ 1569 mvmvif->link[0] = &mvmvif->deflink; 1570 1571 /* 1572 * Not much to do here. The stack will not allow interface 1573 * types or combinations that we didn't advertise, so we 1574 * don't really have to check the types. 1575 */ 1576 1577 /* make sure that beacon statistics don't go backwards with FW reset */ 1578 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1579 mvmvif->deflink.beacon_stats.accu_num_beacons += 1580 mvmvif->deflink.beacon_stats.num_beacons; 1581 1582 /* Allocate resources for the MAC context, and add it to the fw */ 1583 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1584 if (ret) 1585 goto out; 1586 1587 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1588 1589 /* Currently not much to do for NAN */ 1590 if (vif->type == NL80211_IFTYPE_NAN) { 1591 ret = 0; 1592 goto out; 1593 } 1594 1595 /* 1596 * The AP binding flow can be done only after the beacon 1597 * template is configured (which happens only in the mac80211 1598 * start_ap() flow), and adding the broadcast station can happen 1599 * only after the binding. 1600 * In addition, since modifying the MAC before adding a bcast 1601 * station is not allowed by the FW, delay the adding of MAC context to 1602 * the point where we can also add the bcast station. 1603 * In short: there's not much we can do at this point, other than 1604 * allocating resources :) 1605 */ 1606 if (vif->type == NL80211_IFTYPE_AP || 1607 vif->type == NL80211_IFTYPE_ADHOC) { 1608 iwl_mvm_vif_dbgfs_register(mvm, vif); 1609 ret = 0; 1610 goto out; 1611 } 1612 1613 mvmvif->features |= hw->netdev_features; 1614 1615 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1616 if (ret) 1617 goto out_unlock; 1618 1619 ret = iwl_mvm_power_update_mac(mvm); 1620 if (ret) 1621 goto out_remove_mac; 1622 1623 /* beacon filtering */ 1624 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1625 if (ret) 1626 goto out_remove_mac; 1627 1628 if (!mvm->bf_allowed_vif && 1629 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1630 mvm->bf_allowed_vif = mvmvif; 1631 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1632 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1633 } 1634 1635 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1636 mvm->p2p_device_vif = vif; 1637 1638 iwl_mvm_tcm_add_vif(mvm, vif); 1639 1640 if (vif->type == NL80211_IFTYPE_MONITOR) { 1641 mvm->monitor_on = true; 1642 mvm->monitor_p80 = 1643 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1644 } 1645 1646 iwl_mvm_vif_dbgfs_register(mvm, vif); 1647 1648 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1649 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1650 !mvm->csme_vif && mvm->mei_registered) { 1651 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1652 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1653 mvm->csme_vif = vif; 1654 } 1655 1656 out: 1657 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1658 vif->type == NL80211_IFTYPE_ADHOC)) 1659 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1660 1661 goto out_unlock; 1662 1663 if (mvm->bf_allowed_vif == mvmvif) { 1664 mvm->bf_allowed_vif = NULL; 1665 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1666 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1667 } 1668 out_remove_mac: 1669 mvmvif->deflink.phy_ctxt = NULL; 1670 iwl_mvm_mac_ctxt_remove(mvm, vif); 1671 out_unlock: 1672 mutex_unlock(&mvm->mutex); 1673 1674 return ret; 1675 } 1676 1677 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1678 struct ieee80211_vif *vif) 1679 { 1680 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1681 1682 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1683 /* 1684 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1685 * We assume here that all the packets sent to the OFFCHANNEL 1686 * queue are sent in ROC session. 1687 */ 1688 flush_work(&mvm->roc_done_wk); 1689 } 1690 1691 cancel_delayed_work_sync(&mvmvif->csa_work); 1692 } 1693 1694 /* This function is doing the common part of removing the interface for 1695 * both - MLD and non-MLD modes. Returns true if removing the interface 1696 * is done 1697 */ 1698 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1699 struct ieee80211_vif *vif) 1700 { 1701 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1702 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1703 struct iwl_probe_resp_data *probe_data; 1704 1705 iwl_mvm_prepare_mac_removal(mvm, vif); 1706 1707 if (!(vif->type == NL80211_IFTYPE_AP || 1708 vif->type == NL80211_IFTYPE_ADHOC)) 1709 iwl_mvm_tcm_rm_vif(mvm, vif); 1710 1711 mutex_lock(&mvm->mutex); 1712 1713 if (vif == mvm->csme_vif) { 1714 iwl_mei_set_netdev(NULL); 1715 mvm->csme_vif = NULL; 1716 } 1717 1718 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1719 lockdep_is_held(&mvm->mutex)); 1720 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1721 if (probe_data) 1722 kfree_rcu(probe_data, rcu_head); 1723 1724 if (mvm->bf_allowed_vif == mvmvif) { 1725 mvm->bf_allowed_vif = NULL; 1726 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1727 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1728 } 1729 1730 if (vif->bss_conf.ftm_responder) 1731 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1732 1733 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1734 1735 /* 1736 * For AP/GO interface, the tear down of the resources allocated to the 1737 * interface is be handled as part of the stop_ap flow. 1738 */ 1739 if (vif->type == NL80211_IFTYPE_AP || 1740 vif->type == NL80211_IFTYPE_ADHOC) { 1741 #ifdef CONFIG_NL80211_TESTMODE 1742 if (vif == mvm->noa_vif) { 1743 mvm->noa_vif = NULL; 1744 mvm->noa_duration = 0; 1745 } 1746 #endif 1747 return true; 1748 } 1749 1750 iwl_mvm_power_update_mac(mvm); 1751 return false; 1752 } 1753 1754 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1755 struct ieee80211_vif *vif) 1756 { 1757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1758 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1759 1760 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1761 goto out; 1762 1763 /* Before the interface removal, mac80211 would cancel the ROC, and the 1764 * ROC worker would be scheduled if needed. The worker would be flushed 1765 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1766 * binding etc. so nothing needs to be done here. 1767 */ 1768 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1769 if (mvmvif->deflink.phy_ctxt) { 1770 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1771 mvmvif->deflink.phy_ctxt = NULL; 1772 } 1773 mvm->p2p_device_vif = NULL; 1774 } 1775 1776 iwl_mvm_mac_ctxt_remove(mvm, vif); 1777 1778 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1779 1780 if (vif->type == NL80211_IFTYPE_MONITOR) 1781 mvm->monitor_on = false; 1782 1783 out: 1784 if (vif->type == NL80211_IFTYPE_AP || 1785 vif->type == NL80211_IFTYPE_ADHOC) { 1786 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1787 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1788 } 1789 1790 mutex_unlock(&mvm->mutex); 1791 } 1792 1793 struct iwl_mvm_mc_iter_data { 1794 struct iwl_mvm *mvm; 1795 int port_id; 1796 }; 1797 1798 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1799 struct ieee80211_vif *vif) 1800 { 1801 struct iwl_mvm_mc_iter_data *data = _data; 1802 struct iwl_mvm *mvm = data->mvm; 1803 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1804 struct iwl_host_cmd hcmd = { 1805 .id = MCAST_FILTER_CMD, 1806 .flags = CMD_ASYNC, 1807 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1808 }; 1809 int ret, len; 1810 1811 /* if we don't have free ports, mcast frames will be dropped */ 1812 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1813 return; 1814 1815 if (vif->type != NL80211_IFTYPE_STATION || 1816 !vif->cfg.assoc) 1817 return; 1818 1819 cmd->port_id = data->port_id++; 1820 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1821 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1822 1823 hcmd.len[0] = len; 1824 hcmd.data[0] = cmd; 1825 1826 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1827 if (ret) 1828 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1829 } 1830 1831 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1832 { 1833 struct iwl_mvm_mc_iter_data iter_data = { 1834 .mvm = mvm, 1835 }; 1836 int ret; 1837 1838 lockdep_assert_held(&mvm->mutex); 1839 1840 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1841 return; 1842 1843 ieee80211_iterate_active_interfaces_atomic( 1844 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1845 iwl_mvm_mc_iface_iterator, &iter_data); 1846 1847 /* 1848 * Send a (synchronous) ech command so that we wait for the 1849 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1850 * the interface iterator. Otherwise, we might get here over 1851 * and over again (by userspace just sending a lot of these) 1852 * and the CPU can send them faster than the firmware can 1853 * process them. 1854 * Note that the CPU is still faster - but with this we'll 1855 * actually send fewer commands overall because the CPU will 1856 * not schedule the work in mac80211 as frequently if it's 1857 * still running when rescheduled (possibly multiple times). 1858 */ 1859 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1860 if (ret) 1861 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1862 } 1863 1864 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1865 struct netdev_hw_addr_list *mc_list) 1866 { 1867 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1868 struct iwl_mcast_filter_cmd *cmd; 1869 struct netdev_hw_addr *addr; 1870 int addr_count; 1871 bool pass_all; 1872 int len; 1873 1874 addr_count = netdev_hw_addr_list_count(mc_list); 1875 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1876 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1877 if (pass_all) 1878 addr_count = 0; 1879 1880 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1881 cmd = kzalloc(len, GFP_ATOMIC); 1882 if (!cmd) 1883 return 0; 1884 1885 if (pass_all) { 1886 cmd->pass_all = 1; 1887 return (u64)(unsigned long)cmd; 1888 } 1889 1890 netdev_hw_addr_list_for_each(addr, mc_list) { 1891 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1892 cmd->count, addr->addr); 1893 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1894 addr->addr, ETH_ALEN); 1895 cmd->count++; 1896 } 1897 1898 return (u64)(unsigned long)cmd; 1899 } 1900 1901 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1902 unsigned int changed_flags, 1903 unsigned int *total_flags, u64 multicast) 1904 { 1905 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1906 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1907 1908 mutex_lock(&mvm->mutex); 1909 1910 /* replace previous configuration */ 1911 kfree(mvm->mcast_filter_cmd); 1912 mvm->mcast_filter_cmd = cmd; 1913 1914 if (!cmd) 1915 goto out; 1916 1917 if (changed_flags & FIF_ALLMULTI) 1918 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1919 1920 if (cmd->pass_all) 1921 cmd->count = 0; 1922 1923 iwl_mvm_recalc_multicast(mvm); 1924 out: 1925 mutex_unlock(&mvm->mutex); 1926 *total_flags = 0; 1927 } 1928 1929 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1930 struct ieee80211_vif *vif, 1931 unsigned int filter_flags, 1932 unsigned int changed_flags) 1933 { 1934 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1935 1936 /* We support only filter for probe requests */ 1937 if (!(changed_flags & FIF_PROBE_REQ)) 1938 return; 1939 1940 /* Supported only for p2p client interfaces */ 1941 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1942 !vif->p2p) 1943 return; 1944 1945 mutex_lock(&mvm->mutex); 1946 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1947 mutex_unlock(&mvm->mutex); 1948 } 1949 1950 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1951 { 1952 struct iwl_mu_group_mgmt_cmd cmd = {}; 1953 1954 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1955 WLAN_MEMBERSHIP_LEN); 1956 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1957 WLAN_USER_POSITION_LEN); 1958 1959 return iwl_mvm_send_cmd_pdu(mvm, 1960 WIDE_ID(DATA_PATH_GROUP, 1961 UPDATE_MU_GROUPS_CMD), 1962 0, sizeof(cmd), &cmd); 1963 } 1964 1965 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1966 struct ieee80211_vif *vif) 1967 { 1968 if (vif->bss_conf.mu_mimo_owner) { 1969 struct iwl_mu_group_mgmt_notif *notif = _data; 1970 1971 /* 1972 * MU-MIMO Group Id action frame is little endian. We treat 1973 * the data received from firmware as if it came from the 1974 * action frame, so no conversion is needed. 1975 */ 1976 ieee80211_update_mu_groups(vif, 0, 1977 (u8 *)¬if->membership_status, 1978 (u8 *)¬if->user_position); 1979 } 1980 } 1981 1982 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1983 struct iwl_rx_cmd_buffer *rxb) 1984 { 1985 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1986 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1987 1988 ieee80211_iterate_active_interfaces_atomic( 1989 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1990 iwl_mvm_mu_mimo_iface_iterator, notif); 1991 } 1992 1993 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1994 { 1995 u8 byte_num = ppe_pos_bit / 8; 1996 u8 bit_num = ppe_pos_bit % 8; 1997 u8 residue_bits; 1998 u8 res; 1999 2000 if (bit_num <= 5) 2001 return (ppe[byte_num] >> bit_num) & 2002 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2003 2004 /* 2005 * If bit_num > 5, we have to combine bits with next byte. 2006 * Calculate how many bits we need to take from current byte (called 2007 * here "residue_bits"), and add them to bits from next byte. 2008 */ 2009 2010 residue_bits = 8 - bit_num; 2011 2012 res = (ppe[byte_num + 1] & 2013 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2014 residue_bits; 2015 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2016 2017 return res; 2018 } 2019 2020 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2021 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2022 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2023 bool inheritance) 2024 { 2025 int i; 2026 2027 /* 2028 * FW currently supports only nss == MAX_HE_SUPP_NSS 2029 * 2030 * If nss > MAX: we can ignore values we don't support 2031 * If nss < MAX: we can set zeros in other streams 2032 */ 2033 if (nss > MAX_HE_SUPP_NSS) { 2034 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2035 MAX_HE_SUPP_NSS); 2036 nss = MAX_HE_SUPP_NSS; 2037 } 2038 2039 for (i = 0; i < nss; i++) { 2040 u8 ru_index_tmp = ru_index_bitmap << 1; 2041 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2042 u8 bw; 2043 2044 for (bw = 0; 2045 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2046 bw++) { 2047 ru_index_tmp >>= 1; 2048 2049 /* 2050 * According to the 11be spec, if for a specific BW the PPE Thresholds 2051 * isn't present - it should inherit the thresholds from the last 2052 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2053 * this inheritance - continue in this case 2054 */ 2055 if (!(ru_index_tmp & 1)) { 2056 if (inheritance) 2057 goto set_thresholds; 2058 else 2059 continue; 2060 } 2061 2062 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2063 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2064 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2065 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2066 2067 set_thresholds: 2068 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2069 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2070 } 2071 } 2072 } 2073 2074 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2075 struct ieee80211_link_sta *link_sta, 2076 struct iwl_he_pkt_ext_v2 *pkt_ext, 2077 bool inheritance) 2078 { 2079 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2080 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2081 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2082 u8 ru_index_bitmap = 2083 u8_get_bits(*ppe, 2084 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2085 /* Starting after PPE header */ 2086 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2087 2088 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2089 inheritance); 2090 } 2091 2092 static int 2093 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2094 u8 nominal_padding) 2095 { 2096 int low_th = -1; 2097 int high_th = -1; 2098 int i; 2099 2100 /* all the macros are the same for EHT and HE */ 2101 switch (nominal_padding) { 2102 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2103 low_th = IWL_HE_PKT_EXT_NONE; 2104 high_th = IWL_HE_PKT_EXT_NONE; 2105 break; 2106 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2107 low_th = IWL_HE_PKT_EXT_BPSK; 2108 high_th = IWL_HE_PKT_EXT_NONE; 2109 break; 2110 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2111 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2112 low_th = IWL_HE_PKT_EXT_NONE; 2113 high_th = IWL_HE_PKT_EXT_BPSK; 2114 break; 2115 } 2116 2117 if (low_th < 0 || high_th < 0) 2118 return -EINVAL; 2119 2120 /* Set the PPE thresholds accordingly */ 2121 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2122 u8 bw; 2123 2124 for (bw = 0; 2125 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2126 bw++) { 2127 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2128 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2129 } 2130 } 2131 2132 return 0; 2133 } 2134 2135 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2136 u8 nominal_padding) 2137 { 2138 int i; 2139 2140 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2141 u8 bw; 2142 2143 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2144 bw++) { 2145 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2146 2147 if (nominal_padding > 2148 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2149 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2150 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2151 else if (nominal_padding == 2152 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2153 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2154 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2155 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2156 } 2157 } 2158 } 2159 2160 /* Set the pkt_ext field according to PPE Thresholds element */ 2161 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2162 struct ieee80211_link_sta *link_sta, 2163 struct iwl_he_pkt_ext_v2 *pkt_ext) 2164 { 2165 u8 nominal_padding; 2166 int i, ret = 0; 2167 2168 if (WARN_ON(!link_sta)) 2169 return -EINVAL; 2170 2171 /* Initialize the PPE thresholds to "None" (7), as described in Table 2172 * 9-262ac of 80211.ax/D3.0. 2173 */ 2174 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2175 sizeof(struct iwl_he_pkt_ext_v2)); 2176 2177 if (link_sta->eht_cap.has_eht) { 2178 nominal_padding = 2179 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2180 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2181 2182 /* If PPE Thresholds exists, parse them into a FW-familiar 2183 * format. 2184 */ 2185 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2186 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2187 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2188 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2189 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2190 u8 ru_index_bitmap = 2191 u16_get_bits(*ppe, 2192 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2193 /* Starting after PPE header */ 2194 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2195 2196 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2197 ppe, ppe_pos_bit, true); 2198 /* EHT PPE Thresholds doesn't exist - set the API according to 2199 * HE PPE Tresholds 2200 */ 2201 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2202 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2203 /* Even though HE Capabilities IE doesn't contain PPE 2204 * Thresholds for BW 320Mhz, thresholds for this BW will 2205 * be filled in with the same values as 160Mhz, due to 2206 * the inheritance, as required. 2207 */ 2208 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2209 true); 2210 2211 /* According to the requirements, for MCSs 12-13 the 2212 * maximum value between HE PPE Threshold and Common 2213 * Nominal Packet Padding needs to be taken 2214 */ 2215 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2216 2217 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2218 * take the Thresholds from Common Nominal Packet Padding field 2219 */ 2220 } else { 2221 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2222 nominal_padding); 2223 } 2224 } else if (link_sta->he_cap.has_he) { 2225 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2226 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2227 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2228 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2229 false); 2230 /* PPE Thresholds doesn't exist - set the API PPE values 2231 * according to Common Nominal Packet Padding field. 2232 */ 2233 } else { 2234 nominal_padding = 2235 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2236 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2237 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2238 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2239 nominal_padding); 2240 } 2241 } 2242 2243 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2244 int bw; 2245 2246 for (bw = 0; 2247 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2248 bw++) { 2249 u8 *qam_th = 2250 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2251 2252 IWL_DEBUG_HT(mvm, 2253 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2254 i, bw, qam_th[0], qam_th[1]); 2255 } 2256 } 2257 return ret; 2258 } 2259 2260 /* 2261 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2262 * is enabled or not 2263 */ 2264 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2265 const struct iwl_mvm_vif_link_info *link_info, 2266 struct iwl_he_backoff_conf *trig_based_txf) 2267 { 2268 int i; 2269 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2270 bool mu_edca_enabled = true; 2271 2272 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2273 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2274 &link_info->queue_params[i].mu_edca_param_rec; 2275 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2276 2277 if (!link_info->queue_params[i].mu_edca) { 2278 mu_edca_enabled = false; 2279 break; 2280 } 2281 2282 trig_based_txf[ac].cwmin = 2283 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2284 trig_based_txf[ac].cwmax = 2285 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2286 trig_based_txf[ac].aifsn = 2287 cpu_to_le16(mu_edca->aifsn & 0xf); 2288 trig_based_txf[ac].mu_time = 2289 cpu_to_le16(mu_edca->mu_edca_timer); 2290 } 2291 2292 return mu_edca_enabled; 2293 } 2294 2295 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2296 { 2297 const struct ieee80211_supported_band *sband; 2298 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2299 2300 /* This capability is the same for all bands, 2301 * so take it from one of them. 2302 */ 2303 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2304 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2305 2306 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2307 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2308 } 2309 2310 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2311 struct ieee80211_link_sta *link_sta) 2312 { 2313 u8 *mac_cap_info = 2314 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2315 __le32 htc_flags = 0; 2316 2317 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2318 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2319 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2320 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2321 u8 link_adap = 2322 ((mac_cap_info[2] & 2323 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2324 (mac_cap_info[1] & 2325 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2326 2327 if (link_adap == 2) 2328 htc_flags |= 2329 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2330 else if (link_adap == 3) 2331 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2332 } 2333 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2334 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2335 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2336 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2337 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2338 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2339 2340 return htc_flags; 2341 } 2342 2343 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2344 struct ieee80211_vif *vif, u8 sta_id) 2345 { 2346 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2347 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2348 .sta_id = sta_id, 2349 .tid_limit = IWL_MAX_TID_COUNT, 2350 .bss_color = vif->bss_conf.he_bss_color.color, 2351 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2352 .frame_time_rts_th = 2353 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2354 }; 2355 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2356 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2357 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2358 int size; 2359 struct ieee80211_sta *sta; 2360 u32 flags; 2361 int i; 2362 void *cmd; 2363 2364 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2365 ver = 1; 2366 2367 switch (ver) { 2368 case 1: 2369 /* same layout as v2 except some data at the end */ 2370 cmd = &sta_ctxt_cmd_v2; 2371 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2372 break; 2373 case 2: 2374 cmd = &sta_ctxt_cmd_v2; 2375 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2376 break; 2377 case 3: 2378 cmd = &sta_ctxt_cmd; 2379 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2380 break; 2381 default: 2382 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2383 return; 2384 } 2385 2386 rcu_read_lock(); 2387 2388 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2389 if (IS_ERR_OR_NULL(sta)) { 2390 rcu_read_unlock(); 2391 WARN(1, "Can't find STA to configure HE\n"); 2392 return; 2393 } 2394 2395 if (!sta->deflink.he_cap.has_he) { 2396 rcu_read_unlock(); 2397 return; 2398 } 2399 2400 flags = 0; 2401 2402 /* Block 26-tone RU OFDMA transmissions */ 2403 if (mvmvif->deflink.he_ru_2mhz_block) 2404 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2405 2406 /* HTC flags */ 2407 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2408 2409 /* PPE Thresholds */ 2410 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2411 flags |= STA_CTXT_HE_PACKET_EXT; 2412 2413 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2414 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2415 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2416 2417 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2418 IEEE80211_HE_MAC_CAP2_ACK_EN) 2419 flags |= STA_CTXT_HE_ACK_ENABLED; 2420 2421 rcu_read_unlock(); 2422 2423 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2424 &sta_ctxt_cmd.trig_based_txf[0])) 2425 flags |= STA_CTXT_HE_MU_EDCA_CW; 2426 2427 if (vif->bss_conf.uora_exists) { 2428 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2429 2430 sta_ctxt_cmd.rand_alloc_ecwmin = 2431 vif->bss_conf.uora_ocw_range & 0x7; 2432 sta_ctxt_cmd.rand_alloc_ecwmax = 2433 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2434 } 2435 2436 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2437 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2438 2439 if (vif->bss_conf.nontransmitted) { 2440 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2441 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2442 vif->bss_conf.transmitter_bssid); 2443 sta_ctxt_cmd.max_bssid_indicator = 2444 vif->bss_conf.bssid_indicator; 2445 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2446 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2447 sta_ctxt_cmd.profile_periodicity = 2448 vif->bss_conf.profile_periodicity; 2449 } 2450 2451 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2452 2453 if (ver < 3) { 2454 /* fields before pkt_ext */ 2455 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2456 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2457 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2458 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2459 2460 /* pkt_ext */ 2461 for (i = 0; 2462 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2463 i++) { 2464 u8 bw; 2465 2466 for (bw = 0; 2467 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2468 bw++) { 2469 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2470 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2471 2472 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2473 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2474 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2475 } 2476 } 2477 2478 /* fields after pkt_ext */ 2479 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2480 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2481 sizeof(sta_ctxt_cmd_v2) - 2482 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2483 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2484 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2485 (u8 *)&sta_ctxt_cmd + 2486 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2487 sizeof(sta_ctxt_cmd) - 2488 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2489 sta_ctxt_cmd_v2.reserved3 = 0; 2490 } 2491 2492 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2493 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2494 } 2495 2496 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2497 u32 duration_override) 2498 { 2499 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2500 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2501 2502 if (duration_override > duration) 2503 duration = duration_override; 2504 2505 /* Try really hard to protect the session and hear a beacon 2506 * The new session protection command allows us to protect the 2507 * session for a much longer time since the firmware will internally 2508 * create two events: a 300TU one with a very high priority that 2509 * won't be fragmented which should be enough for 99% of the cases, 2510 * and another one (which we configure here to be 900TU long) which 2511 * will have a slightly lower priority, but more importantly, can be 2512 * fragmented so that it'll allow other activities to run. 2513 */ 2514 if (fw_has_capa(&mvm->fw->ucode_capa, 2515 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2516 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2517 min_duration, false); 2518 else 2519 iwl_mvm_protect_session(mvm, vif, duration, 2520 min_duration, 500, false); 2521 } 2522 2523 /* Handle association common part to MLD and non-MLD modes */ 2524 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2525 struct ieee80211_vif *vif, 2526 u64 changes) 2527 { 2528 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2529 int ret; 2530 2531 /* The firmware tracks the MU-MIMO group on its own. 2532 * However, on HW restart we should restore this data. 2533 */ 2534 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2535 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2536 ret = iwl_mvm_update_mu_groups(mvm, vif); 2537 if (ret) 2538 IWL_ERR(mvm, 2539 "failed to update VHT MU_MIMO groups\n"); 2540 } 2541 2542 iwl_mvm_recalc_multicast(mvm); 2543 2544 /* reset rssi values */ 2545 mvmvif->bf_data.ave_beacon_signal = 0; 2546 2547 iwl_mvm_bt_coex_vif_change(mvm); 2548 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2549 IEEE80211_SMPS_AUTOMATIC); 2550 if (fw_has_capa(&mvm->fw->ucode_capa, 2551 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2552 iwl_mvm_config_scan(mvm); 2553 } 2554 2555 /* Execute the common part for MLD and non-MLD modes */ 2556 void 2557 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2558 struct ieee80211_vif *vif, 2559 struct ieee80211_bss_conf *link_conf, 2560 u64 changes) 2561 { 2562 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2563 int ret; 2564 2565 if (changes & BSS_CHANGED_BEACON_INFO) { 2566 /* We received a beacon from the associated AP so 2567 * remove the session protection. 2568 */ 2569 iwl_mvm_stop_session_protection(mvm, vif); 2570 2571 iwl_mvm_sf_update(mvm, vif, false); 2572 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2573 } 2574 2575 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2576 /* Send power command on every beacon change, 2577 * because we may have not enabled beacon abort yet. 2578 */ 2579 BSS_CHANGED_BEACON_INFO)) { 2580 ret = iwl_mvm_power_update_mac(mvm); 2581 if (ret) 2582 IWL_ERR(mvm, "failed to update power mode\n"); 2583 } 2584 2585 if (changes & BSS_CHANGED_CQM) { 2586 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2587 /* reset cqm events tracking */ 2588 mvmvif->bf_data.last_cqm_event = 0; 2589 if (mvmvif->bf_data.bf_enabled) { 2590 /* FIXME: need to update per link when FW API will 2591 * support it 2592 */ 2593 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2594 if (ret) 2595 IWL_ERR(mvm, 2596 "failed to update CQM thresholds\n"); 2597 } 2598 } 2599 2600 if (changes & BSS_CHANGED_BANDWIDTH) 2601 iwl_mvm_update_link_smps(vif, link_conf); 2602 } 2603 2604 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2605 struct ieee80211_vif *vif, 2606 struct ieee80211_bss_conf *bss_conf, 2607 u64 changes) 2608 { 2609 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2610 int ret; 2611 2612 /* 2613 * Re-calculate the tsf id, as the leader-follower relations depend 2614 * on the beacon interval, which was not known when the station 2615 * interface was added. 2616 */ 2617 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2618 if ((vif->bss_conf.he_support && 2619 !iwlwifi_mod_params.disable_11ax) || 2620 (vif->bss_conf.eht_support && 2621 !iwlwifi_mod_params.disable_11be)) 2622 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2623 2624 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2625 } 2626 2627 /* Update MU EDCA params */ 2628 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2629 vif->cfg.assoc && 2630 ((vif->bss_conf.he_support && 2631 !iwlwifi_mod_params.disable_11ax) || 2632 (vif->bss_conf.eht_support && 2633 !iwlwifi_mod_params.disable_11be))) 2634 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2635 2636 /* 2637 * If we're not associated yet, take the (new) BSSID before associating 2638 * so the firmware knows. If we're already associated, then use the old 2639 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2640 * branch for disassociation below. 2641 */ 2642 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2643 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2644 2645 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2646 if (ret) 2647 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2648 2649 /* after sending it once, adopt mac80211 data */ 2650 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2651 mvmvif->associated = vif->cfg.assoc; 2652 2653 if (changes & BSS_CHANGED_ASSOC) { 2654 if (vif->cfg.assoc) { 2655 /* clear statistics to get clean beacon counter */ 2656 iwl_mvm_request_statistics(mvm, true); 2657 memset(&mvmvif->deflink.beacon_stats, 0, 2658 sizeof(mvmvif->deflink.beacon_stats)); 2659 2660 /* add quota for this interface */ 2661 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2662 if (ret) { 2663 IWL_ERR(mvm, "failed to update quotas\n"); 2664 return; 2665 } 2666 2667 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2668 &mvm->status) && 2669 !fw_has_capa(&mvm->fw->ucode_capa, 2670 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2671 /* 2672 * If we're restarting then the firmware will 2673 * obviously have lost synchronisation with 2674 * the AP. It will attempt to synchronise by 2675 * itself, but we can make it more reliable by 2676 * scheduling a session protection time event. 2677 * 2678 * The firmware needs to receive a beacon to 2679 * catch up with synchronisation, use 110% of 2680 * the beacon interval. 2681 * 2682 * Set a large maximum delay to allow for more 2683 * than a single interface. 2684 * 2685 * For new firmware versions, rely on the 2686 * firmware. This is relevant for DCM scenarios 2687 * only anyway. 2688 */ 2689 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2690 iwl_mvm_protect_session(mvm, vif, dur, dur, 2691 5 * dur, false); 2692 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2693 &mvm->status) && 2694 !vif->bss_conf.dtim_period) { 2695 /* 2696 * If we're not restarting and still haven't 2697 * heard a beacon (dtim period unknown) then 2698 * make sure we still have enough minimum time 2699 * remaining in the time event, since the auth 2700 * might actually have taken quite a while 2701 * (especially for SAE) and so the remaining 2702 * time could be small without us having heard 2703 * a beacon yet. 2704 */ 2705 iwl_mvm_protect_assoc(mvm, vif, 0); 2706 } 2707 2708 iwl_mvm_sf_update(mvm, vif, false); 2709 iwl_mvm_power_vif_assoc(mvm, vif); 2710 if (vif->p2p) { 2711 iwl_mvm_update_smps(mvm, vif, 2712 IWL_MVM_SMPS_REQ_PROT, 2713 IEEE80211_SMPS_DYNAMIC, 0); 2714 } 2715 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2716 iwl_mvm_mei_host_disassociated(mvm); 2717 /* 2718 * If update fails - SF might be running in associated 2719 * mode while disassociated - which is forbidden. 2720 */ 2721 ret = iwl_mvm_sf_update(mvm, vif, false); 2722 WARN_ONCE(ret && 2723 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2724 &mvm->status), 2725 "Failed to update SF upon disassociation\n"); 2726 2727 /* 2728 * If we get an assert during the connection (after the 2729 * station has been added, but before the vif is set 2730 * to associated), mac80211 will re-add the station and 2731 * then configure the vif. Since the vif is not 2732 * associated, we would remove the station here and 2733 * this would fail the recovery. 2734 */ 2735 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2736 &mvm->status)) { 2737 /* first remove remaining keys */ 2738 iwl_mvm_sec_key_remove_ap(mvm, vif, 2739 &mvmvif->deflink, 0); 2740 2741 /* 2742 * Remove AP station now that 2743 * the MAC is unassoc 2744 */ 2745 ret = iwl_mvm_rm_sta_id(mvm, vif, 2746 mvmvif->deflink.ap_sta_id); 2747 if (ret) 2748 IWL_ERR(mvm, 2749 "failed to remove AP station\n"); 2750 2751 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2752 } 2753 2754 /* remove quota for this interface */ 2755 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2756 if (ret) 2757 IWL_ERR(mvm, "failed to update quotas\n"); 2758 2759 /* this will take the cleared BSSID from bss_conf */ 2760 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2761 if (ret) 2762 IWL_ERR(mvm, 2763 "failed to update MAC %pM (clear after unassoc)\n", 2764 vif->addr); 2765 } 2766 2767 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2768 } 2769 2770 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2771 changes); 2772 } 2773 2774 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2775 struct ieee80211_vif *vif, 2776 int *ret) 2777 { 2778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2779 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2780 int i; 2781 2782 lockdep_assert_held(&mvm->mutex); 2783 2784 mvmvif->ap_assoc_sta_count = 0; 2785 2786 /* must be set before quota calculations */ 2787 mvmvif->ap_ibss_active = true; 2788 2789 /* send all the early keys to the device now */ 2790 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2791 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2792 2793 if (!key) 2794 continue; 2795 2796 mvmvif->ap_early_keys[i] = NULL; 2797 2798 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2799 if (*ret) 2800 return true; 2801 } 2802 2803 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2804 iwl_mvm_vif_set_low_latency(mvmvif, true, 2805 LOW_LATENCY_VIF_TYPE); 2806 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2807 } 2808 2809 /* power updated needs to be done before quotas */ 2810 iwl_mvm_power_update_mac(mvm); 2811 2812 return false; 2813 } 2814 2815 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2816 struct ieee80211_vif *vif, 2817 struct ieee80211_bss_conf *link_conf) 2818 { 2819 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2820 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2821 int ret; 2822 2823 mutex_lock(&mvm->mutex); 2824 2825 /* 2826 * Re-calculate the tsf id, as the leader-follower relations depend on 2827 * the beacon interval, which was not known when the AP interface 2828 * was added. 2829 */ 2830 if (vif->type == NL80211_IFTYPE_AP) 2831 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2832 2833 /* For older devices need to send beacon template before adding mac 2834 * context. For the newer, the beacon is a resource that belongs to a 2835 * MAC, so need to send beacon template after adding the mac. 2836 */ 2837 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2838 /* Add the mac context */ 2839 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2840 if (ret) 2841 goto out_unlock; 2842 2843 /* Send the beacon template */ 2844 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2845 if (ret) 2846 goto out_unlock; 2847 } else { 2848 /* Send the beacon template */ 2849 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2850 if (ret) 2851 goto out_unlock; 2852 2853 /* Add the mac context */ 2854 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2855 if (ret) 2856 goto out_unlock; 2857 } 2858 2859 /* Perform the binding */ 2860 ret = iwl_mvm_binding_add_vif(mvm, vif); 2861 if (ret) 2862 goto out_remove; 2863 2864 /* 2865 * This is not very nice, but the simplest: 2866 * For older FWs adding the mcast sta before the bcast station may 2867 * cause assert 0x2b00. 2868 * This is fixed in later FW so make the order of removal depend on 2869 * the TLV 2870 */ 2871 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2872 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2873 if (ret) 2874 goto out_unbind; 2875 /* 2876 * Send the bcast station. At this stage the TBTT and DTIM time 2877 * events are added and applied to the scheduler 2878 */ 2879 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2880 if (ret) { 2881 iwl_mvm_rm_mcast_sta(mvm, vif); 2882 goto out_unbind; 2883 } 2884 } else { 2885 /* 2886 * Send the bcast station. At this stage the TBTT and DTIM time 2887 * events are added and applied to the scheduler 2888 */ 2889 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2890 if (ret) 2891 goto out_unbind; 2892 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2893 if (ret) { 2894 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2895 goto out_unbind; 2896 } 2897 } 2898 2899 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2900 goto out_failed; 2901 2902 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2903 if (ret) 2904 goto out_failed; 2905 2906 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2907 if (vif->p2p && mvm->p2p_device_vif) 2908 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2909 2910 iwl_mvm_bt_coex_vif_change(mvm); 2911 2912 /* we don't support TDLS during DCM */ 2913 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2914 iwl_mvm_teardown_tdls_peers(mvm); 2915 2916 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2917 2918 goto out_unlock; 2919 2920 out_failed: 2921 iwl_mvm_power_update_mac(mvm); 2922 mvmvif->ap_ibss_active = false; 2923 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2924 iwl_mvm_rm_mcast_sta(mvm, vif); 2925 out_unbind: 2926 iwl_mvm_binding_remove_vif(mvm, vif); 2927 out_remove: 2928 iwl_mvm_mac_ctxt_remove(mvm, vif); 2929 out_unlock: 2930 mutex_unlock(&mvm->mutex); 2931 return ret; 2932 } 2933 2934 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2935 struct ieee80211_vif *vif, 2936 struct ieee80211_bss_conf *link_conf) 2937 { 2938 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2939 } 2940 2941 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2942 struct ieee80211_vif *vif) 2943 { 2944 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2945 } 2946 2947 /* Common part for MLD and non-MLD ops */ 2948 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2949 struct ieee80211_vif *vif) 2950 { 2951 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2952 2953 lockdep_assert_held(&mvm->mutex); 2954 2955 iwl_mvm_prepare_mac_removal(mvm, vif); 2956 2957 /* Handle AP stop while in CSA */ 2958 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2959 iwl_mvm_remove_time_event(mvm, mvmvif, 2960 &mvmvif->time_event_data); 2961 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2962 mvmvif->csa_countdown = false; 2963 } 2964 2965 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2966 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2967 mvm->csa_tx_block_bcn_timeout = 0; 2968 } 2969 2970 mvmvif->ap_ibss_active = false; 2971 mvm->ap_last_beacon_gp2 = 0; 2972 2973 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2974 iwl_mvm_vif_set_low_latency(mvmvif, false, 2975 LOW_LATENCY_VIF_TYPE); 2976 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2977 } 2978 2979 iwl_mvm_bt_coex_vif_change(mvm); 2980 } 2981 2982 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2983 struct ieee80211_vif *vif, 2984 struct ieee80211_bss_conf *link_conf) 2985 { 2986 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2987 2988 mutex_lock(&mvm->mutex); 2989 2990 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2991 2992 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2993 if (vif->p2p && mvm->p2p_device_vif) 2994 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2995 2996 iwl_mvm_update_quotas(mvm, false, NULL); 2997 2998 iwl_mvm_ftm_responder_clear(mvm, vif); 2999 3000 /* 3001 * This is not very nice, but the simplest: 3002 * For older FWs removing the mcast sta before the bcast station may 3003 * cause assert 0x2b00. 3004 * This is fixed in later FW (which will stop beaconing when removing 3005 * bcast station). 3006 * So make the order of removal depend on the TLV 3007 */ 3008 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3009 iwl_mvm_rm_mcast_sta(mvm, vif); 3010 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3011 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3012 iwl_mvm_rm_mcast_sta(mvm, vif); 3013 iwl_mvm_binding_remove_vif(mvm, vif); 3014 3015 iwl_mvm_power_update_mac(mvm); 3016 3017 iwl_mvm_mac_ctxt_remove(mvm, vif); 3018 3019 mutex_unlock(&mvm->mutex); 3020 } 3021 3022 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3023 struct ieee80211_vif *vif, 3024 struct ieee80211_bss_conf *link_conf) 3025 { 3026 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3027 } 3028 3029 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3030 struct ieee80211_vif *vif) 3031 { 3032 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3033 } 3034 3035 static void 3036 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3037 struct ieee80211_vif *vif, 3038 struct ieee80211_bss_conf *bss_conf, 3039 u64 changes) 3040 { 3041 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3042 3043 /* Changes will be applied when the AP/IBSS is started */ 3044 if (!mvmvif->ap_ibss_active) 3045 return; 3046 3047 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3048 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3049 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3050 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3051 3052 /* Need to send a new beacon template to the FW */ 3053 if (changes & BSS_CHANGED_BEACON && 3054 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3055 IWL_WARN(mvm, "Failed updating beacon data\n"); 3056 3057 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3058 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3059 3060 if (ret) 3061 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3062 ret); 3063 } 3064 3065 } 3066 3067 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3068 struct ieee80211_vif *vif, 3069 struct ieee80211_bss_conf *bss_conf, 3070 u64 changes) 3071 { 3072 static const struct iwl_mvm_bss_info_changed_ops callbacks = { 3073 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3074 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3075 }; 3076 3077 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3078 changes); 3079 } 3080 3081 void 3082 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3083 struct ieee80211_vif *vif, 3084 struct ieee80211_bss_conf *bss_conf, 3085 const struct iwl_mvm_bss_info_changed_ops *callbacks, 3086 u64 changes) 3087 { 3088 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3089 3090 mutex_lock(&mvm->mutex); 3091 3092 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3093 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3094 3095 switch (vif->type) { 3096 case NL80211_IFTYPE_STATION: 3097 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3098 break; 3099 case NL80211_IFTYPE_AP: 3100 case NL80211_IFTYPE_ADHOC: 3101 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3102 changes); 3103 break; 3104 case NL80211_IFTYPE_MONITOR: 3105 if (changes & BSS_CHANGED_MU_GROUPS) 3106 iwl_mvm_update_mu_groups(mvm, vif); 3107 break; 3108 default: 3109 /* shouldn't happen */ 3110 WARN_ON_ONCE(1); 3111 } 3112 3113 if (changes & BSS_CHANGED_TXPOWER) { 3114 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3115 bss_conf->txpower); 3116 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3117 } 3118 3119 mutex_unlock(&mvm->mutex); 3120 } 3121 3122 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3123 struct ieee80211_scan_request *hw_req) 3124 { 3125 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3126 int ret; 3127 3128 if (hw_req->req.n_channels == 0 || 3129 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3130 return -EINVAL; 3131 3132 mutex_lock(&mvm->mutex); 3133 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3134 mutex_unlock(&mvm->mutex); 3135 3136 return ret; 3137 } 3138 3139 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3140 struct ieee80211_vif *vif) 3141 { 3142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3143 3144 mutex_lock(&mvm->mutex); 3145 3146 /* Due to a race condition, it's possible that mac80211 asks 3147 * us to stop a hw_scan when it's already stopped. This can 3148 * happen, for instance, if we stopped the scan ourselves, 3149 * called ieee80211_scan_completed() and the userspace called 3150 * cancel scan scan before ieee80211_scan_work() could run. 3151 * To handle that, simply return if the scan is not running. 3152 */ 3153 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3154 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3155 3156 mutex_unlock(&mvm->mutex); 3157 } 3158 3159 void 3160 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3161 struct ieee80211_sta *sta, u16 tids, 3162 int num_frames, 3163 enum ieee80211_frame_release_type reason, 3164 bool more_data) 3165 { 3166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3167 3168 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3169 3170 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3171 tids, more_data, false); 3172 } 3173 3174 void 3175 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3176 struct ieee80211_sta *sta, u16 tids, 3177 int num_frames, 3178 enum ieee80211_frame_release_type reason, 3179 bool more_data) 3180 { 3181 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3182 3183 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3184 3185 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3186 tids, more_data, true); 3187 } 3188 3189 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3190 enum sta_notify_cmd cmd, 3191 struct ieee80211_sta *sta) 3192 { 3193 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3194 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3195 unsigned long txqs = 0, tids = 0; 3196 int tid; 3197 3198 /* 3199 * If we have TVQM then we get too high queue numbers - luckily 3200 * we really shouldn't get here with that because such hardware 3201 * should have firmware supporting buffer station offload. 3202 */ 3203 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3204 return; 3205 3206 spin_lock_bh(&mvmsta->lock); 3207 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3208 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3209 3210 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3211 continue; 3212 3213 __set_bit(tid_data->txq_id, &txqs); 3214 3215 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3216 continue; 3217 3218 __set_bit(tid, &tids); 3219 } 3220 3221 switch (cmd) { 3222 case STA_NOTIFY_SLEEP: 3223 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3224 ieee80211_sta_set_buffered(sta, tid, true); 3225 3226 if (txqs) 3227 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3228 /* 3229 * The fw updates the STA to be asleep. Tx packets on the Tx 3230 * queues to this station will not be transmitted. The fw will 3231 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3232 */ 3233 break; 3234 case STA_NOTIFY_AWAKE: 3235 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3236 break; 3237 3238 if (txqs) 3239 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3240 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3241 break; 3242 default: 3243 break; 3244 } 3245 spin_unlock_bh(&mvmsta->lock); 3246 } 3247 3248 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3249 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3250 { 3251 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3252 } 3253 3254 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3255 { 3256 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3257 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3258 struct ieee80211_sta *sta; 3259 struct iwl_mvm_sta *mvmsta; 3260 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3261 3262 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3263 return; 3264 3265 rcu_read_lock(); 3266 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3267 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3268 rcu_read_unlock(); 3269 return; 3270 } 3271 3272 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3273 3274 if (!mvmsta->vif || 3275 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3276 rcu_read_unlock(); 3277 return; 3278 } 3279 3280 if (mvmsta->sleeping != sleeping) { 3281 mvmsta->sleeping = sleeping; 3282 __iwl_mvm_mac_sta_notify(mvm->hw, 3283 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3284 sta); 3285 ieee80211_sta_ps_transition(sta, sleeping); 3286 } 3287 3288 if (sleeping) { 3289 switch (notif->type) { 3290 case IWL_MVM_PM_EVENT_AWAKE: 3291 case IWL_MVM_PM_EVENT_ASLEEP: 3292 break; 3293 case IWL_MVM_PM_EVENT_UAPSD: 3294 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3295 break; 3296 case IWL_MVM_PM_EVENT_PS_POLL: 3297 ieee80211_sta_pspoll(sta); 3298 break; 3299 default: 3300 break; 3301 } 3302 } 3303 3304 rcu_read_unlock(); 3305 } 3306 3307 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3308 struct ieee80211_vif *vif, 3309 struct ieee80211_sta *sta) 3310 { 3311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3312 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3313 unsigned int link_id; 3314 3315 /* 3316 * This is called before mac80211 does RCU synchronisation, 3317 * so here we already invalidate our internal RCU-protected 3318 * station pointer. The rest of the code will thus no longer 3319 * be able to find the station this way, and we don't rely 3320 * on further RCU synchronisation after the sta_state() 3321 * callback deleted the station. 3322 * Since there's mvm->mutex here, no need to have RCU lock for 3323 * mvm_sta->link access. 3324 */ 3325 mutex_lock(&mvm->mutex); 3326 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3327 struct iwl_mvm_link_sta *link_sta; 3328 u32 sta_id; 3329 3330 if (!mvm_sta->link[link_id]) 3331 continue; 3332 3333 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3334 lockdep_is_held(&mvm->mutex)); 3335 sta_id = link_sta->sta_id; 3336 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3337 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3338 ERR_PTR(-ENOENT)); 3339 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3340 } 3341 } 3342 mutex_unlock(&mvm->mutex); 3343 } 3344 3345 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3346 const u8 *bssid) 3347 { 3348 int i; 3349 3350 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3351 struct iwl_mvm_tcm_mac *mdata; 3352 3353 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3354 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3355 mdata->opened_rx_ba_sessions = false; 3356 } 3357 3358 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3359 return; 3360 3361 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3362 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3363 return; 3364 } 3365 3366 if (!vif->p2p && 3367 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3368 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3369 return; 3370 } 3371 3372 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3373 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3374 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3375 return; 3376 } 3377 } 3378 3379 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3380 } 3381 3382 static void 3383 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3384 struct ieee80211_vif *vif, u8 *peer_addr, 3385 enum nl80211_tdls_operation action) 3386 { 3387 struct iwl_fw_dbg_trigger_tlv *trig; 3388 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3389 3390 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3391 FW_DBG_TRIGGER_TDLS); 3392 if (!trig) 3393 return; 3394 3395 tdls_trig = (void *)trig->data; 3396 3397 if (!(tdls_trig->action_bitmap & BIT(action))) 3398 return; 3399 3400 if (tdls_trig->peer_mode && 3401 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3402 return; 3403 3404 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3405 "TDLS event occurred, peer %pM, action %d", 3406 peer_addr, action); 3407 } 3408 3409 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3410 bool tolerated; 3411 }; 3412 3413 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3414 struct cfg80211_bss *bss, 3415 void *_data) 3416 { 3417 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3418 const struct cfg80211_bss_ies *ies; 3419 const struct element *elem; 3420 3421 rcu_read_lock(); 3422 ies = rcu_dereference(bss->ies); 3423 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3424 ies->len); 3425 3426 if (!elem || elem->datalen < 10 || 3427 !(elem->data[10] & 3428 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3429 data->tolerated = false; 3430 } 3431 rcu_read_unlock(); 3432 } 3433 3434 static void 3435 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3436 struct ieee80211_vif *vif, 3437 unsigned int link_id, 3438 struct ieee80211_bss_conf *link_conf) 3439 { 3440 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3441 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3442 .tolerated = true, 3443 }; 3444 3445 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3446 !mvmvif->link[link_id])) 3447 return; 3448 3449 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3450 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3451 return; 3452 } 3453 3454 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3455 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3456 &iter_data); 3457 3458 /* 3459 * If there is at least one AP on radar channel that cannot 3460 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3461 */ 3462 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3463 } 3464 3465 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3466 struct ieee80211_vif *vif) 3467 { 3468 struct ieee80211_supported_band *sband; 3469 const struct ieee80211_sta_he_cap *he_cap; 3470 3471 if (vif->type != NL80211_IFTYPE_STATION) 3472 return; 3473 3474 if (!mvm->cca_40mhz_workaround) 3475 return; 3476 3477 /* decrement and check that we reached zero */ 3478 mvm->cca_40mhz_workaround--; 3479 if (mvm->cca_40mhz_workaround) 3480 return; 3481 3482 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3483 3484 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3485 3486 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3487 3488 if (he_cap) { 3489 /* we know that ours is writable */ 3490 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3491 3492 he->he_cap_elem.phy_cap_info[0] |= 3493 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3494 } 3495 } 3496 3497 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3498 struct ieee80211_vif *vif, 3499 struct iwl_mvm_sta *mvm_sta) 3500 { 3501 #if IS_ENABLED(CONFIG_IWLMEI) 3502 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3503 struct iwl_mei_conn_info conn_info = { 3504 .ssid_len = vif->cfg.ssid_len, 3505 }; 3506 3507 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3508 return; 3509 3510 if (!mvm->mei_registered) 3511 return; 3512 3513 /* FIXME: MEI needs to be updated for MLO */ 3514 if (!vif->bss_conf.chandef.chan) 3515 return; 3516 3517 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3518 3519 switch (mvm_sta->pairwise_cipher) { 3520 case WLAN_CIPHER_SUITE_TKIP: 3521 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3522 break; 3523 case WLAN_CIPHER_SUITE_CCMP: 3524 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3525 break; 3526 case WLAN_CIPHER_SUITE_GCMP: 3527 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3528 break; 3529 case WLAN_CIPHER_SUITE_GCMP_256: 3530 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3531 break; 3532 case 0: 3533 /* open profile */ 3534 break; 3535 default: 3536 /* cipher not supported, don't send anything to iwlmei */ 3537 return; 3538 } 3539 3540 switch (mvmvif->rekey_data.akm) { 3541 case WLAN_AKM_SUITE_SAE & 0xff: 3542 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3543 break; 3544 case WLAN_AKM_SUITE_PSK & 0xff: 3545 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3546 break; 3547 case WLAN_AKM_SUITE_8021X & 0xff: 3548 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3549 break; 3550 case 0: 3551 /* open profile */ 3552 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3553 break; 3554 default: 3555 /* auth method / AKM not supported */ 3556 /* TODO: All the FT vesions of these? */ 3557 return; 3558 } 3559 3560 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3561 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3562 3563 /* TODO: add support for collocated AP data */ 3564 iwl_mei_host_associated(&conn_info, NULL); 3565 #endif 3566 } 3567 3568 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3569 struct ieee80211_vif *vif, 3570 bool force_assoc_off) 3571 { 3572 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3573 } 3574 3575 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3576 struct ieee80211_vif *vif, 3577 struct ieee80211_sta *sta, 3578 enum ieee80211_sta_state old_state, 3579 enum ieee80211_sta_state new_state) 3580 { 3581 static const struct iwl_mvm_sta_state_ops callbacks = { 3582 .add_sta = iwl_mvm_add_sta, 3583 .update_sta = iwl_mvm_update_sta, 3584 .rm_sta = iwl_mvm_rm_sta, 3585 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3586 }; 3587 3588 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3589 &callbacks); 3590 } 3591 3592 /* FIXME: temporary making two assumptions in all sta handling functions: 3593 * (1) when setting sta state, the link exists and protected 3594 * (2) if a link is valid in sta then it's valid in vif (can 3595 * use same index in the link array) 3596 */ 3597 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3598 struct ieee80211_vif *vif, 3599 struct ieee80211_sta *sta) 3600 { 3601 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3602 unsigned int link_id; 3603 3604 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3605 struct ieee80211_bss_conf *conf = 3606 link_conf_dereference_check(vif, link_id); 3607 struct ieee80211_link_sta *link_sta = 3608 link_sta_dereference_check(sta, link_id); 3609 3610 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3611 continue; 3612 3613 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3614 mvmvif->link[link_id]->phy_ctxt->channel->band); 3615 } 3616 } 3617 3618 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3619 3620 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3621 struct ieee80211_vif *vif, 3622 struct ieee80211_sta *sta) 3623 { 3624 struct ieee80211_link_sta *link_sta; 3625 unsigned int link_id; 3626 3627 /* Beacon interval check - firmware will crash if the beacon 3628 * interval is less than 16. We can't avoid connecting at all, 3629 * so refuse the station state change, this will cause mac80211 3630 * to abandon attempts to connect to this AP, and eventually 3631 * wpa_s will blocklist the AP... 3632 */ 3633 3634 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3635 struct ieee80211_bss_conf *link_conf = 3636 link_conf_dereference_protected(vif, link_id); 3637 3638 if (!link_conf) 3639 continue; 3640 3641 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3642 IWL_ERR(mvm, 3643 "Beacon interval %d for AP %pM is too small\n", 3644 link_conf->beacon_int, link_sta->addr); 3645 return false; 3646 } 3647 3648 link_conf->he_support = link_sta->he_cap.has_he; 3649 } 3650 3651 return true; 3652 } 3653 3654 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3655 struct ieee80211_vif *vif, 3656 struct ieee80211_sta *sta, 3657 bool is_sta) 3658 { 3659 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3660 struct ieee80211_link_sta *link_sta; 3661 unsigned int link_id; 3662 3663 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3664 struct ieee80211_bss_conf *link_conf = 3665 link_conf_dereference_protected(vif, link_id); 3666 3667 if (!link_conf || !mvmvif->link[link_id]) 3668 continue; 3669 3670 link_conf->he_support = link_sta->he_cap.has_he; 3671 3672 if (is_sta) { 3673 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3674 if (link_sta->he_cap.has_he) 3675 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3676 link_id, 3677 link_conf); 3678 } 3679 } 3680 } 3681 3682 static int 3683 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3684 struct ieee80211_vif *vif, 3685 struct ieee80211_sta *sta, 3686 const struct iwl_mvm_sta_state_ops *callbacks) 3687 { 3688 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3689 struct ieee80211_link_sta *link_sta; 3690 unsigned int i; 3691 int ret; 3692 3693 lockdep_assert_held(&mvm->mutex); 3694 3695 if (vif->type == NL80211_IFTYPE_STATION && 3696 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3697 return -EINVAL; 3698 3699 if (sta->tdls && 3700 (vif->p2p || 3701 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3702 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3703 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3704 return -EBUSY; 3705 } 3706 3707 ret = callbacks->add_sta(mvm, vif, sta); 3708 if (sta->tdls && ret == 0) { 3709 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3710 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3711 NL80211_TDLS_SETUP); 3712 } 3713 3714 if (ret) 3715 return ret; 3716 3717 for_each_sta_active_link(vif, sta, link_sta, i) 3718 link_sta->agg.max_rc_amsdu_len = 1; 3719 3720 ieee80211_sta_recalc_aggregates(sta); 3721 3722 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3723 mvmvif->ap_sta = sta; 3724 3725 /* 3726 * Initialize the rates here already - this really tells 3727 * the firmware only what the supported legacy rates are 3728 * (may be) since it's initialized already from what the 3729 * AP advertised in the beacon/probe response. This will 3730 * allow the firmware to send auth/assoc frames with one 3731 * of the supported rates already, rather than having to 3732 * use a mandatory rate. 3733 * If we're the AP, we'll just assume mandatory rates at 3734 * this point, but we know nothing about the STA anyway. 3735 */ 3736 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3737 3738 return 0; 3739 } 3740 3741 static int 3742 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3743 struct iwl_mvm *mvm, 3744 struct ieee80211_vif *vif, 3745 struct ieee80211_sta *sta, 3746 const struct iwl_mvm_sta_state_ops *callbacks) 3747 { 3748 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3749 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3750 struct ieee80211_link_sta *link_sta; 3751 unsigned int link_id; 3752 3753 lockdep_assert_held(&mvm->mutex); 3754 3755 if (vif->type == NL80211_IFTYPE_AP) { 3756 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3757 mvmvif->ap_assoc_sta_count++; 3758 callbacks->mac_ctxt_changed(mvm, vif, false); 3759 3760 /* since the below is not for MLD API, it's ok to use 3761 * the default bss_conf 3762 */ 3763 if (!mvm->mld_api_is_used && 3764 ((vif->bss_conf.he_support && 3765 !iwlwifi_mod_params.disable_11ax) || 3766 (vif->bss_conf.eht_support && 3767 !iwlwifi_mod_params.disable_11be))) 3768 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3769 } else if (vif->type == NL80211_IFTYPE_STATION) { 3770 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3771 3772 callbacks->mac_ctxt_changed(mvm, vif, false); 3773 3774 if (!mvm->mld_api_is_used) 3775 goto out; 3776 3777 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3778 struct ieee80211_bss_conf *link_conf = 3779 link_conf_dereference_protected(vif, link_id); 3780 3781 if (WARN_ON(!link_conf)) 3782 return -EINVAL; 3783 if (!mvmvif->link[link_id]) 3784 continue; 3785 3786 iwl_mvm_link_changed(mvm, vif, link_conf, 3787 LINK_CONTEXT_MODIFY_ALL & 3788 ~LINK_CONTEXT_MODIFY_ACTIVE, 3789 true); 3790 } 3791 } 3792 3793 out: 3794 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3795 3796 return callbacks->update_sta(mvm, vif, sta); 3797 } 3798 3799 static int 3800 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3801 struct ieee80211_vif *vif, 3802 struct ieee80211_sta *sta, 3803 const struct iwl_mvm_sta_state_ops *callbacks) 3804 { 3805 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3806 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3807 3808 lockdep_assert_held(&mvm->mutex); 3809 3810 /* we don't support TDLS during DCM */ 3811 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3812 iwl_mvm_teardown_tdls_peers(mvm); 3813 3814 if (sta->tdls) { 3815 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3816 NL80211_TDLS_ENABLE_LINK); 3817 } else { 3818 /* enable beacon filtering */ 3819 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3820 3821 mvmvif->authorized = 1; 3822 3823 callbacks->mac_ctxt_changed(mvm, vif, false); 3824 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3825 } 3826 3827 mvm_sta->authorized = true; 3828 3829 /* MFP is set by default before the station is authorized. 3830 * Clear it here in case it's not used. 3831 */ 3832 if (!sta->mfp) { 3833 int ret = callbacks->update_sta(mvm, vif, sta); 3834 3835 if (ret) 3836 return ret; 3837 } 3838 3839 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3840 3841 return 0; 3842 } 3843 3844 static int 3845 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3846 struct ieee80211_vif *vif, 3847 struct ieee80211_sta *sta, 3848 const struct iwl_mvm_sta_state_ops *callbacks) 3849 { 3850 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3851 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3852 3853 lockdep_assert_held(&mvm->mutex); 3854 3855 mvmsta->authorized = false; 3856 3857 /* once we move into assoc state, need to update rate scale to 3858 * disable using wide bandwidth 3859 */ 3860 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3861 3862 if (!sta->tdls) { 3863 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3864 * yet to avoid sending high prio again for a little 3865 * time. 3866 */ 3867 mvmvif->authorized = 0; 3868 3869 /* disable beacon filtering */ 3870 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3871 } 3872 3873 return 0; 3874 } 3875 3876 /* Common part for MLD and non-MLD modes */ 3877 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3878 struct ieee80211_vif *vif, 3879 struct ieee80211_sta *sta, 3880 enum ieee80211_sta_state old_state, 3881 enum ieee80211_sta_state new_state, 3882 const struct iwl_mvm_sta_state_ops *callbacks) 3883 { 3884 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3885 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3886 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3887 struct ieee80211_link_sta *link_sta; 3888 unsigned int link_id; 3889 int ret; 3890 3891 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3892 sta->addr, old_state, new_state); 3893 3894 /* 3895 * If we are in a STA removal flow and in DQA mode: 3896 * 3897 * This is after the sync_rcu part, so the queues have already been 3898 * flushed. No more TXs on their way in mac80211's path, and no more in 3899 * the queues. 3900 * Also, we won't be getting any new TX frames for this station. 3901 * What we might have are deferred TX frames that need to be taken care 3902 * of. 3903 * 3904 * Drop any still-queued deferred-frame before removing the STA, and 3905 * make sure the worker is no longer handling frames for this STA. 3906 */ 3907 if (old_state == IEEE80211_STA_NONE && 3908 new_state == IEEE80211_STA_NOTEXIST) { 3909 flush_work(&mvm->add_stream_wk); 3910 3911 /* 3912 * No need to make sure deferred TX indication is off since the 3913 * worker will already remove it if it was on 3914 */ 3915 3916 /* 3917 * Additionally, reset the 40 MHz capability if we disconnected 3918 * from the AP now. 3919 */ 3920 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3921 3922 /* Also free dup data just in case any assertions below fail */ 3923 kfree(mvm_sta->dup_data); 3924 } 3925 3926 mutex_lock(&mvm->mutex); 3927 3928 /* this would be a mac80211 bug ... but don't crash, unless we had a 3929 * firmware crash while we were activating a link, in which case it is 3930 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3931 * recovery flow since we spit tons of error messages anyway. 3932 */ 3933 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3934 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3935 mutex_unlock(&mvm->mutex); 3936 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3937 &mvm->status) ? 0 : -EINVAL; 3938 } 3939 } 3940 3941 /* track whether or not the station is associated */ 3942 mvm_sta->sta_state = new_state; 3943 3944 if (old_state == IEEE80211_STA_NOTEXIST && 3945 new_state == IEEE80211_STA_NONE) { 3946 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3947 callbacks); 3948 if (ret < 0) 3949 goto out_unlock; 3950 } else if (old_state == IEEE80211_STA_NONE && 3951 new_state == IEEE80211_STA_AUTH) { 3952 /* 3953 * EBS may be disabled due to previous failures reported by FW. 3954 * Reset EBS status here assuming environment has been changed. 3955 */ 3956 mvm->last_ebs_successful = true; 3957 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3958 ret = 0; 3959 } else if (old_state == IEEE80211_STA_AUTH && 3960 new_state == IEEE80211_STA_ASSOC) { 3961 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3962 callbacks); 3963 } else if (old_state == IEEE80211_STA_ASSOC && 3964 new_state == IEEE80211_STA_AUTHORIZED) { 3965 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3966 callbacks); 3967 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3968 new_state == IEEE80211_STA_ASSOC) { 3969 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3970 callbacks); 3971 } else if (old_state == IEEE80211_STA_ASSOC && 3972 new_state == IEEE80211_STA_AUTH) { 3973 if (vif->type == NL80211_IFTYPE_AP) { 3974 mvmvif->ap_assoc_sta_count--; 3975 callbacks->mac_ctxt_changed(mvm, vif, false); 3976 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3977 iwl_mvm_stop_session_protection(mvm, vif); 3978 ret = 0; 3979 } else if (old_state == IEEE80211_STA_AUTH && 3980 new_state == IEEE80211_STA_NONE) { 3981 ret = 0; 3982 } else if (old_state == IEEE80211_STA_NONE && 3983 new_state == IEEE80211_STA_NOTEXIST) { 3984 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3985 iwl_mvm_stop_session_protection(mvm, vif); 3986 mvmvif->ap_sta = NULL; 3987 } 3988 ret = callbacks->rm_sta(mvm, vif, sta); 3989 if (sta->tdls) { 3990 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3991 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3992 NL80211_TDLS_DISABLE_LINK); 3993 } 3994 3995 if (unlikely(ret && 3996 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3997 &mvm->status))) 3998 ret = 0; 3999 } else { 4000 ret = -EIO; 4001 } 4002 out_unlock: 4003 mutex_unlock(&mvm->mutex); 4004 4005 if (sta->tdls && ret == 0) { 4006 if (old_state == IEEE80211_STA_NOTEXIST && 4007 new_state == IEEE80211_STA_NONE) 4008 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4009 else if (old_state == IEEE80211_STA_NONE && 4010 new_state == IEEE80211_STA_NOTEXIST) 4011 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4012 } 4013 4014 return ret; 4015 } 4016 4017 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4018 { 4019 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4020 4021 mvm->rts_threshold = value; 4022 4023 return 0; 4024 } 4025 4026 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4027 struct ieee80211_sta *sta, u32 changed) 4028 { 4029 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4030 4031 if (changed & (IEEE80211_RC_BW_CHANGED | 4032 IEEE80211_RC_SUPP_RATES_CHANGED | 4033 IEEE80211_RC_NSS_CHANGED)) 4034 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4035 4036 if (vif->type == NL80211_IFTYPE_STATION && 4037 changed & IEEE80211_RC_NSS_CHANGED) 4038 iwl_mvm_sf_update(mvm, vif, false); 4039 } 4040 4041 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4042 struct ieee80211_vif *vif, 4043 unsigned int link_id, u16 ac, 4044 const struct ieee80211_tx_queue_params *params) 4045 { 4046 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4047 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4048 4049 mvmvif->deflink.queue_params[ac] = *params; 4050 4051 /* 4052 * No need to update right away, we'll get BSS_CHANGED_QOS 4053 * The exception is P2P_DEVICE interface which needs immediate update. 4054 */ 4055 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4056 int ret; 4057 4058 mutex_lock(&mvm->mutex); 4059 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4060 mutex_unlock(&mvm->mutex); 4061 return ret; 4062 } 4063 return 0; 4064 } 4065 4066 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4067 struct ieee80211_vif *vif, 4068 struct ieee80211_prep_tx_info *info) 4069 { 4070 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4071 4072 mutex_lock(&mvm->mutex); 4073 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4074 mutex_unlock(&mvm->mutex); 4075 } 4076 4077 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4078 struct ieee80211_vif *vif, 4079 struct ieee80211_prep_tx_info *info) 4080 { 4081 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4082 4083 /* for successful cases (auth/assoc), don't cancel session protection */ 4084 if (info->success) 4085 return; 4086 4087 mutex_lock(&mvm->mutex); 4088 iwl_mvm_stop_session_protection(mvm, vif); 4089 mutex_unlock(&mvm->mutex); 4090 } 4091 4092 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4093 struct ieee80211_vif *vif, 4094 struct cfg80211_sched_scan_request *req, 4095 struct ieee80211_scan_ies *ies) 4096 { 4097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4098 4099 int ret; 4100 4101 mutex_lock(&mvm->mutex); 4102 4103 if (!vif->cfg.idle) { 4104 ret = -EBUSY; 4105 goto out; 4106 } 4107 4108 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4109 4110 out: 4111 mutex_unlock(&mvm->mutex); 4112 return ret; 4113 } 4114 4115 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4116 struct ieee80211_vif *vif) 4117 { 4118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4119 int ret; 4120 4121 mutex_lock(&mvm->mutex); 4122 4123 /* Due to a race condition, it's possible that mac80211 asks 4124 * us to stop a sched_scan when it's already stopped. This 4125 * can happen, for instance, if we stopped the scan ourselves, 4126 * called ieee80211_sched_scan_stopped() and the userspace called 4127 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4128 * could run. To handle this, simply return if the scan is 4129 * not running. 4130 */ 4131 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4132 mutex_unlock(&mvm->mutex); 4133 return 0; 4134 } 4135 4136 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4137 mutex_unlock(&mvm->mutex); 4138 iwl_mvm_wait_for_async_handlers(mvm); 4139 4140 return ret; 4141 } 4142 4143 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4144 enum set_key_cmd cmd, 4145 struct ieee80211_vif *vif, 4146 struct ieee80211_sta *sta, 4147 struct ieee80211_key_conf *key) 4148 { 4149 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4151 struct iwl_mvm_sta *mvmsta = NULL; 4152 struct iwl_mvm_key_pn *ptk_pn = NULL; 4153 int keyidx = key->keyidx; 4154 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4155 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4156 int ret, i; 4157 u8 key_offset; 4158 4159 if (sta) 4160 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4161 4162 switch (key->cipher) { 4163 case WLAN_CIPHER_SUITE_TKIP: 4164 if (!mvm->trans->trans_cfg->gen2) { 4165 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4166 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4167 } else if (vif->type == NL80211_IFTYPE_STATION) { 4168 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4169 } else { 4170 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4171 return -EOPNOTSUPP; 4172 } 4173 break; 4174 case WLAN_CIPHER_SUITE_CCMP: 4175 case WLAN_CIPHER_SUITE_GCMP: 4176 case WLAN_CIPHER_SUITE_GCMP_256: 4177 if (!iwl_mvm_has_new_tx_api(mvm)) 4178 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4179 break; 4180 case WLAN_CIPHER_SUITE_AES_CMAC: 4181 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4182 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4183 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4184 break; 4185 case WLAN_CIPHER_SUITE_WEP40: 4186 case WLAN_CIPHER_SUITE_WEP104: 4187 if (vif->type == NL80211_IFTYPE_STATION) 4188 break; 4189 if (iwl_mvm_has_new_tx_api(mvm)) 4190 return -EOPNOTSUPP; 4191 /* support HW crypto on TX */ 4192 return 0; 4193 default: 4194 return -EOPNOTSUPP; 4195 } 4196 4197 switch (cmd) { 4198 case SET_KEY: 4199 if (vif->type == NL80211_IFTYPE_STATION && 4200 (keyidx == 6 || keyidx == 7)) 4201 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4202 key); 4203 4204 if ((vif->type == NL80211_IFTYPE_ADHOC || 4205 vif->type == NL80211_IFTYPE_AP) && !sta) { 4206 /* 4207 * GTK on AP interface is a TX-only key, return 0; 4208 * on IBSS they're per-station and because we're lazy 4209 * we don't support them for RX, so do the same. 4210 * CMAC/GMAC in AP/IBSS modes must be done in software. 4211 * 4212 * Except, of course, beacon protection - it must be 4213 * offloaded since we just set a beacon template. 4214 */ 4215 if (keyidx < 6 && 4216 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4217 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4218 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4219 ret = -EOPNOTSUPP; 4220 break; 4221 } 4222 4223 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4224 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4225 !iwl_mvm_has_new_tx_api(mvm)) { 4226 key->hw_key_idx = STA_KEY_IDX_INVALID; 4227 ret = 0; 4228 break; 4229 } 4230 4231 if (!mvmvif->ap_ibss_active) { 4232 for (i = 0; 4233 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4234 i++) { 4235 if (!mvmvif->ap_early_keys[i]) { 4236 mvmvif->ap_early_keys[i] = key; 4237 break; 4238 } 4239 } 4240 4241 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4242 ret = -ENOSPC; 4243 else 4244 ret = 0; 4245 4246 break; 4247 } 4248 } 4249 4250 /* During FW restart, in order to restore the state as it was, 4251 * don't try to reprogram keys we previously failed for. 4252 */ 4253 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4254 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4255 IWL_DEBUG_MAC80211(mvm, 4256 "skip invalid idx key programming during restart\n"); 4257 ret = 0; 4258 break; 4259 } 4260 4261 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4262 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4263 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4264 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4265 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4266 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4267 struct ieee80211_key_seq seq; 4268 int tid, q; 4269 4270 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4271 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4272 mvm->trans->num_rx_queues), 4273 GFP_KERNEL); 4274 if (!ptk_pn) { 4275 ret = -ENOMEM; 4276 break; 4277 } 4278 4279 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4280 ieee80211_get_key_rx_seq(key, tid, &seq); 4281 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4282 memcpy(ptk_pn->q[q].pn[tid], 4283 seq.ccmp.pn, 4284 IEEE80211_CCMP_PN_LEN); 4285 } 4286 4287 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4288 } 4289 4290 /* in HW restart reuse the index, otherwise request a new one */ 4291 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4292 key_offset = key->hw_key_idx; 4293 else 4294 key_offset = STA_KEY_IDX_INVALID; 4295 4296 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4297 mvmsta->pairwise_cipher = key->cipher; 4298 4299 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4300 sta ? sta->addr : NULL, key->keyidx); 4301 4302 if (sec_key_ver) 4303 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4304 else 4305 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4306 4307 if (ret) { 4308 IWL_WARN(mvm, "set key failed\n"); 4309 key->hw_key_idx = STA_KEY_IDX_INVALID; 4310 if (ptk_pn) { 4311 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4312 kfree(ptk_pn); 4313 } 4314 /* 4315 * can't add key for RX, but we don't need it 4316 * in the device for TX so still return 0, 4317 * unless we have new TX API where we cannot 4318 * put key material into the TX_CMD 4319 */ 4320 if (iwl_mvm_has_new_tx_api(mvm)) 4321 ret = -EOPNOTSUPP; 4322 else 4323 ret = 0; 4324 } 4325 4326 break; 4327 case DISABLE_KEY: 4328 if (vif->type == NL80211_IFTYPE_STATION && 4329 (keyidx == 6 || keyidx == 7)) 4330 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4331 NULL); 4332 4333 ret = -ENOENT; 4334 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4335 if (mvmvif->ap_early_keys[i] == key) { 4336 mvmvif->ap_early_keys[i] = NULL; 4337 ret = 0; 4338 } 4339 } 4340 4341 /* found in pending list - don't do anything else */ 4342 if (ret == 0) 4343 break; 4344 4345 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4346 ret = 0; 4347 break; 4348 } 4349 4350 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4351 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4352 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4353 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4354 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4355 ptk_pn = rcu_dereference_protected( 4356 mvmsta->ptk_pn[keyidx], 4357 lockdep_is_held(&mvm->mutex)); 4358 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4359 if (ptk_pn) 4360 kfree_rcu(ptk_pn, rcu_head); 4361 } 4362 4363 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4364 if (sec_key_ver) 4365 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4366 else 4367 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4368 break; 4369 default: 4370 ret = -EINVAL; 4371 } 4372 4373 return ret; 4374 } 4375 4376 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4377 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4378 struct ieee80211_key_conf *key) 4379 { 4380 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4381 int ret; 4382 4383 mutex_lock(&mvm->mutex); 4384 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4385 mutex_unlock(&mvm->mutex); 4386 4387 return ret; 4388 } 4389 4390 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4391 struct ieee80211_vif *vif, 4392 struct ieee80211_key_conf *keyconf, 4393 struct ieee80211_sta *sta, 4394 u32 iv32, u16 *phase1key) 4395 { 4396 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4397 4398 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4399 return; 4400 4401 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4402 } 4403 4404 4405 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4406 struct iwl_rx_packet *pkt, void *data) 4407 { 4408 struct iwl_mvm *mvm = 4409 container_of(notif_wait, struct iwl_mvm, notif_wait); 4410 struct iwl_hs20_roc_res *resp; 4411 int resp_len = iwl_rx_packet_payload_len(pkt); 4412 struct iwl_mvm_time_event_data *te_data = data; 4413 4414 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4415 return true; 4416 4417 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4418 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4419 return true; 4420 } 4421 4422 resp = (void *)pkt->data; 4423 4424 IWL_DEBUG_TE(mvm, 4425 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4426 resp->status, resp->event_unique_id); 4427 4428 te_data->uid = le32_to_cpu(resp->event_unique_id); 4429 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4430 te_data->uid); 4431 4432 spin_lock_bh(&mvm->time_event_lock); 4433 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4434 spin_unlock_bh(&mvm->time_event_lock); 4435 4436 return true; 4437 } 4438 4439 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4440 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4441 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4442 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4443 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4444 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4445 struct ieee80211_channel *channel, 4446 struct ieee80211_vif *vif, 4447 int duration) 4448 { 4449 int res; 4450 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4451 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4452 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4453 struct iwl_notification_wait wait_time_event; 4454 u32 dtim_interval = vif->bss_conf.dtim_period * 4455 vif->bss_conf.beacon_int; 4456 u32 req_dur, delay; 4457 struct iwl_hs20_roc_req aux_roc_req = { 4458 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4459 .id_and_color = 4460 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4461 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4462 }; 4463 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4464 &aux_roc_req.channel_info); 4465 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4466 4467 /* Set the channel info data */ 4468 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4469 iwl_mvm_phy_band_from_nl80211(channel->band), 4470 IWL_PHY_CHANNEL_MODE20, 4471 0); 4472 4473 /* Set the time and duration */ 4474 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4475 4476 delay = AUX_ROC_MIN_DELAY; 4477 req_dur = MSEC_TO_TU(duration); 4478 4479 /* 4480 * If we are associated we want the delay time to be at least one 4481 * dtim interval so that the FW can wait until after the DTIM and 4482 * then start the time event, this will potentially allow us to 4483 * remain off-channel for the max duration. 4484 * Since we want to use almost a whole dtim interval we would also 4485 * like the delay to be for 2-3 dtim intervals, in case there are 4486 * other time events with higher priority. 4487 */ 4488 if (vif->cfg.assoc) { 4489 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4490 /* We cannot remain off-channel longer than the DTIM interval */ 4491 if (dtim_interval <= req_dur) { 4492 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4493 if (req_dur <= AUX_ROC_MIN_DURATION) 4494 req_dur = dtim_interval - 4495 AUX_ROC_MIN_SAFETY_BUFFER; 4496 } 4497 } 4498 4499 tail->duration = cpu_to_le32(req_dur); 4500 tail->apply_time_max_delay = cpu_to_le32(delay); 4501 4502 IWL_DEBUG_TE(mvm, 4503 "ROC: Requesting to remain on channel %u for %ums\n", 4504 channel->hw_value, req_dur); 4505 IWL_DEBUG_TE(mvm, 4506 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4507 duration, delay, dtim_interval); 4508 4509 /* Set the node address */ 4510 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4511 4512 lockdep_assert_held(&mvm->mutex); 4513 4514 spin_lock_bh(&mvm->time_event_lock); 4515 4516 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4517 spin_unlock_bh(&mvm->time_event_lock); 4518 return -EIO; 4519 } 4520 4521 te_data->vif = vif; 4522 te_data->duration = duration; 4523 te_data->id = HOT_SPOT_CMD; 4524 4525 spin_unlock_bh(&mvm->time_event_lock); 4526 4527 /* 4528 * Use a notification wait, which really just processes the 4529 * command response and doesn't wait for anything, in order 4530 * to be able to process the response and get the UID inside 4531 * the RX path. Using CMD_WANT_SKB doesn't work because it 4532 * stores the buffer and then wakes up this thread, by which 4533 * time another notification (that the time event started) 4534 * might already be processed unsuccessfully. 4535 */ 4536 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4537 time_event_response, 4538 ARRAY_SIZE(time_event_response), 4539 iwl_mvm_rx_aux_roc, te_data); 4540 4541 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4542 &aux_roc_req); 4543 4544 if (res) { 4545 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4546 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4547 goto out_clear_te; 4548 } 4549 4550 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4551 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4552 /* should never fail */ 4553 WARN_ON_ONCE(res); 4554 4555 if (res) { 4556 out_clear_te: 4557 spin_lock_bh(&mvm->time_event_lock); 4558 iwl_mvm_te_clear_data(mvm, te_data); 4559 spin_unlock_bh(&mvm->time_event_lock); 4560 } 4561 4562 return res; 4563 } 4564 4565 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4566 { 4567 int ret = 0; 4568 4569 lockdep_assert_held(&mvm->mutex); 4570 4571 if (!fw_has_capa(&mvm->fw->ucode_capa, 4572 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4573 IWL_ERR(mvm, "hotspot not supported\n"); 4574 return -EINVAL; 4575 } 4576 4577 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4578 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4579 WARN(ret, "Failed to allocate aux station"); 4580 } 4581 4582 return ret; 4583 } 4584 4585 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4586 { 4587 int ret; 4588 4589 lockdep_assert_held(&mvm->mutex); 4590 4591 ret = iwl_mvm_binding_add_vif(mvm, vif); 4592 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4593 return ret; 4594 4595 /* The station and queue allocation must be done only after the binding 4596 * is done, as otherwise the FW might incorrectly configure its state. 4597 */ 4598 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4599 } 4600 4601 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4602 struct ieee80211_vif *vif, 4603 struct ieee80211_channel *channel, 4604 int duration, 4605 enum ieee80211_roc_type type) 4606 { 4607 static const struct iwl_mvm_roc_ops ops = { 4608 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4609 .link = iwl_mvm_roc_link, 4610 }; 4611 4612 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4613 } 4614 4615 /* Execute the common part for MLD and non-MLD modes */ 4616 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4617 struct ieee80211_channel *channel, int duration, 4618 enum ieee80211_roc_type type, 4619 const struct iwl_mvm_roc_ops *ops) 4620 { 4621 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4622 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4623 struct cfg80211_chan_def chandef; 4624 struct iwl_mvm_phy_ctxt *phy_ctxt; 4625 int ret, i; 4626 u32 lmac_id; 4627 4628 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4629 duration, type); 4630 4631 /* 4632 * Flush the done work, just in case it's still pending, so that 4633 * the work it does can complete and we can accept new frames. 4634 */ 4635 flush_work(&mvm->roc_done_wk); 4636 4637 mutex_lock(&mvm->mutex); 4638 4639 switch (vif->type) { 4640 case NL80211_IFTYPE_STATION: 4641 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4642 4643 /* Use aux roc framework (HS20) */ 4644 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4645 if (!ret) 4646 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4647 vif, duration); 4648 goto out_unlock; 4649 case NL80211_IFTYPE_P2P_DEVICE: 4650 /* handle below */ 4651 break; 4652 default: 4653 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4654 ret = -EINVAL; 4655 goto out_unlock; 4656 } 4657 4658 /* Try using a PHY context that is already in use */ 4659 for (i = 0; i < NUM_PHY_CTX; i++) { 4660 phy_ctxt = &mvm->phy_ctxts[i]; 4661 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4662 continue; 4663 4664 if (channel == phy_ctxt->channel) { 4665 if (mvmvif->deflink.phy_ctxt) 4666 iwl_mvm_phy_ctxt_unref(mvm, 4667 mvmvif->deflink.phy_ctxt); 4668 4669 mvmvif->deflink.phy_ctxt = phy_ctxt; 4670 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4671 goto link_and_start_p2p_roc; 4672 } 4673 } 4674 4675 /* If the currently used PHY context is configured with a matching 4676 * channel use it 4677 */ 4678 if (mvmvif->deflink.phy_ctxt) { 4679 if (channel == mvmvif->deflink.phy_ctxt->channel) 4680 goto link_and_start_p2p_roc; 4681 } else { 4682 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4683 if (!phy_ctxt) { 4684 ret = -ENOSPC; 4685 goto out_unlock; 4686 } 4687 4688 mvmvif->deflink.phy_ctxt = phy_ctxt; 4689 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4690 } 4691 4692 /* Configure the PHY context */ 4693 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4694 4695 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4696 1, 1); 4697 if (ret) { 4698 IWL_ERR(mvm, "Failed to change PHY context\n"); 4699 goto out_unlock; 4700 } 4701 4702 link_and_start_p2p_roc: 4703 ret = ops->link(mvm, vif); 4704 if (ret) 4705 goto out_unlock; 4706 4707 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4708 out_unlock: 4709 mutex_unlock(&mvm->mutex); 4710 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4711 return ret; 4712 } 4713 4714 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4715 struct ieee80211_vif *vif) 4716 { 4717 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4718 4719 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4720 4721 mutex_lock(&mvm->mutex); 4722 iwl_mvm_stop_roc(mvm, vif); 4723 mutex_unlock(&mvm->mutex); 4724 4725 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4726 return 0; 4727 } 4728 4729 struct iwl_mvm_ftm_responder_iter_data { 4730 bool responder; 4731 struct ieee80211_chanctx_conf *ctx; 4732 }; 4733 4734 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4735 struct ieee80211_vif *vif) 4736 { 4737 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4738 4739 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4740 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4741 data->responder = true; 4742 } 4743 4744 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4745 struct ieee80211_chanctx_conf *ctx) 4746 { 4747 struct iwl_mvm_ftm_responder_iter_data data = { 4748 .responder = false, 4749 .ctx = ctx, 4750 }; 4751 4752 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4753 IEEE80211_IFACE_ITER_NORMAL, 4754 iwl_mvm_ftm_responder_chanctx_iter, 4755 &data); 4756 return data.responder; 4757 } 4758 4759 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4760 struct ieee80211_chanctx_conf *ctx) 4761 { 4762 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4763 struct iwl_mvm_phy_ctxt *phy_ctxt; 4764 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4765 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4766 int ret; 4767 4768 lockdep_assert_held(&mvm->mutex); 4769 4770 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4771 4772 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4773 if (!phy_ctxt) { 4774 ret = -ENOSPC; 4775 goto out; 4776 } 4777 4778 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4779 ctx->rx_chains_static, 4780 ctx->rx_chains_dynamic); 4781 if (ret) { 4782 IWL_ERR(mvm, "Failed to add PHY context\n"); 4783 goto out; 4784 } 4785 4786 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4787 *phy_ctxt_id = phy_ctxt->id; 4788 out: 4789 return ret; 4790 } 4791 4792 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4793 struct ieee80211_chanctx_conf *ctx) 4794 { 4795 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4796 int ret; 4797 4798 mutex_lock(&mvm->mutex); 4799 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4800 mutex_unlock(&mvm->mutex); 4801 4802 return ret; 4803 } 4804 4805 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4806 struct ieee80211_chanctx_conf *ctx) 4807 { 4808 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4809 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4810 4811 lockdep_assert_held(&mvm->mutex); 4812 4813 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4814 } 4815 4816 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4817 struct ieee80211_chanctx_conf *ctx) 4818 { 4819 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4820 4821 mutex_lock(&mvm->mutex); 4822 __iwl_mvm_remove_chanctx(mvm, ctx); 4823 mutex_unlock(&mvm->mutex); 4824 } 4825 4826 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4827 struct ieee80211_chanctx_conf *ctx, u32 changed) 4828 { 4829 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4830 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4831 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4832 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4833 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4834 4835 if (WARN_ONCE((phy_ctxt->ref > 1) && 4836 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4837 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4838 IEEE80211_CHANCTX_CHANGE_RADAR | 4839 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4840 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4841 phy_ctxt->ref, changed)) 4842 return; 4843 4844 mutex_lock(&mvm->mutex); 4845 4846 /* we are only changing the min_width, may be a noop */ 4847 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4848 if (phy_ctxt->width == def->width) 4849 goto out_unlock; 4850 4851 /* we are just toggling between 20_NOHT and 20 */ 4852 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4853 def->width <= NL80211_CHAN_WIDTH_20) 4854 goto out_unlock; 4855 } 4856 4857 iwl_mvm_bt_coex_vif_change(mvm); 4858 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4859 ctx->rx_chains_static, 4860 ctx->rx_chains_dynamic); 4861 4862 out_unlock: 4863 mutex_unlock(&mvm->mutex); 4864 } 4865 4866 /* 4867 * This function executes the common part for MLD and non-MLD modes. 4868 * 4869 * Returns true if we're done assigning the chanctx 4870 * (either on failure or success) 4871 */ 4872 static bool 4873 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4874 struct ieee80211_vif *vif, 4875 struct ieee80211_chanctx_conf *ctx, 4876 bool switching_chanctx, int *ret) 4877 { 4878 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4879 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4880 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4881 4882 lockdep_assert_held(&mvm->mutex); 4883 4884 mvmvif->deflink.phy_ctxt = phy_ctxt; 4885 4886 switch (vif->type) { 4887 case NL80211_IFTYPE_AP: 4888 /* only needed if we're switching chanctx (i.e. during CSA) */ 4889 if (switching_chanctx) { 4890 mvmvif->ap_ibss_active = true; 4891 break; 4892 } 4893 fallthrough; 4894 case NL80211_IFTYPE_ADHOC: 4895 /* 4896 * The AP binding flow is handled as part of the start_ap flow 4897 * (in bss_info_changed), similarly for IBSS. 4898 */ 4899 *ret = 0; 4900 return true; 4901 case NL80211_IFTYPE_STATION: 4902 break; 4903 case NL80211_IFTYPE_MONITOR: 4904 /* always disable PS when a monitor interface is active */ 4905 mvmvif->ps_disabled = true; 4906 break; 4907 default: 4908 *ret = -EINVAL; 4909 return true; 4910 } 4911 return false; 4912 } 4913 4914 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4915 struct ieee80211_vif *vif, 4916 struct ieee80211_bss_conf *link_conf, 4917 struct ieee80211_chanctx_conf *ctx, 4918 bool switching_chanctx) 4919 { 4920 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4921 int ret; 4922 4923 if (WARN_ON(!link_conf)) 4924 return -EINVAL; 4925 4926 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4927 switching_chanctx, &ret)) 4928 goto out; 4929 4930 ret = iwl_mvm_binding_add_vif(mvm, vif); 4931 if (ret) 4932 goto out; 4933 4934 /* 4935 * Power state must be updated before quotas, 4936 * otherwise fw will complain. 4937 */ 4938 iwl_mvm_power_update_mac(mvm); 4939 4940 /* Setting the quota at this stage is only required for monitor 4941 * interfaces. For the other types, the bss_info changed flow 4942 * will handle quota settings. 4943 */ 4944 if (vif->type == NL80211_IFTYPE_MONITOR) { 4945 mvmvif->monitor_active = true; 4946 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4947 if (ret) 4948 goto out_remove_binding; 4949 4950 ret = iwl_mvm_add_snif_sta(mvm, vif); 4951 if (ret) 4952 goto out_remove_binding; 4953 4954 } 4955 4956 /* Handle binding during CSA */ 4957 if (vif->type == NL80211_IFTYPE_AP) { 4958 iwl_mvm_update_quotas(mvm, false, NULL); 4959 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4960 } 4961 4962 if (vif->type == NL80211_IFTYPE_STATION) { 4963 if (!switching_chanctx) { 4964 mvmvif->csa_bcn_pending = false; 4965 goto out; 4966 } 4967 4968 mvmvif->csa_bcn_pending = true; 4969 4970 if (!fw_has_capa(&mvm->fw->ucode_capa, 4971 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4972 u32 duration = 3 * vif->bss_conf.beacon_int; 4973 4974 /* Protect the session to make sure we hear the first 4975 * beacon on the new channel. 4976 */ 4977 iwl_mvm_protect_session(mvm, vif, duration, duration, 4978 vif->bss_conf.beacon_int / 2, 4979 true); 4980 } 4981 4982 iwl_mvm_update_quotas(mvm, false, NULL); 4983 } 4984 4985 goto out; 4986 4987 out_remove_binding: 4988 iwl_mvm_binding_remove_vif(mvm, vif); 4989 iwl_mvm_power_update_mac(mvm); 4990 out: 4991 if (ret) 4992 mvmvif->deflink.phy_ctxt = NULL; 4993 return ret; 4994 } 4995 4996 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4997 struct ieee80211_vif *vif, 4998 struct ieee80211_bss_conf *link_conf, 4999 struct ieee80211_chanctx_conf *ctx) 5000 { 5001 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5002 int ret; 5003 5004 mutex_lock(&mvm->mutex); 5005 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5006 mutex_unlock(&mvm->mutex); 5007 5008 return ret; 5009 } 5010 5011 /* 5012 * This function executes the common part for MLD and non-MLD modes. 5013 * 5014 * Returns if chanctx unassign chanctx is done 5015 * (either on failure or success) 5016 */ 5017 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5018 struct ieee80211_vif *vif, 5019 bool switching_chanctx) 5020 { 5021 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5022 5023 lockdep_assert_held(&mvm->mutex); 5024 iwl_mvm_remove_time_event(mvm, mvmvif, 5025 &mvmvif->time_event_data); 5026 5027 switch (vif->type) { 5028 case NL80211_IFTYPE_ADHOC: 5029 return true; 5030 case NL80211_IFTYPE_MONITOR: 5031 mvmvif->monitor_active = false; 5032 mvmvif->ps_disabled = false; 5033 break; 5034 case NL80211_IFTYPE_AP: 5035 /* This part is triggered only during CSA */ 5036 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5037 return true; 5038 5039 mvmvif->csa_countdown = false; 5040 5041 /* Set CS bit on all the stations */ 5042 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5043 5044 /* Save blocked iface, the timeout is set on the next beacon */ 5045 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5046 5047 mvmvif->ap_ibss_active = false; 5048 break; 5049 default: 5050 break; 5051 } 5052 return false; 5053 } 5054 5055 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5056 struct ieee80211_vif *vif, 5057 struct ieee80211_bss_conf *link_conf, 5058 struct ieee80211_chanctx_conf *ctx, 5059 bool switching_chanctx) 5060 { 5061 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5062 struct ieee80211_vif *disabled_vif = NULL; 5063 5064 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5065 goto out; 5066 5067 if (vif->type == NL80211_IFTYPE_MONITOR) 5068 iwl_mvm_rm_snif_sta(mvm, vif); 5069 5070 5071 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5072 disabled_vif = vif; 5073 if (!fw_has_capa(&mvm->fw->ucode_capa, 5074 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5075 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5076 } 5077 5078 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5079 iwl_mvm_binding_remove_vif(mvm, vif); 5080 5081 out: 5082 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5083 switching_chanctx) 5084 return; 5085 mvmvif->deflink.phy_ctxt = NULL; 5086 iwl_mvm_power_update_mac(mvm); 5087 } 5088 5089 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5090 struct ieee80211_vif *vif, 5091 struct ieee80211_bss_conf *link_conf, 5092 struct ieee80211_chanctx_conf *ctx) 5093 { 5094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5095 5096 mutex_lock(&mvm->mutex); 5097 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5098 mutex_unlock(&mvm->mutex); 5099 } 5100 5101 static int 5102 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5103 struct ieee80211_vif_chanctx_switch *vifs, 5104 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5105 { 5106 int ret; 5107 5108 mutex_lock(&mvm->mutex); 5109 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5110 vifs[0].old_ctx, true); 5111 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5112 5113 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5114 if (ret) { 5115 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5116 goto out_reassign; 5117 } 5118 5119 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5120 vifs[0].new_ctx, true); 5121 if (ret) { 5122 IWL_ERR(mvm, 5123 "failed to assign new_ctx during channel switch\n"); 5124 goto out_remove; 5125 } 5126 5127 /* we don't support TDLS during DCM - can be caused by channel switch */ 5128 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5129 iwl_mvm_teardown_tdls_peers(mvm); 5130 5131 goto out; 5132 5133 out_remove: 5134 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5135 5136 out_reassign: 5137 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5138 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5139 goto out_restart; 5140 } 5141 5142 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5143 vifs[0].old_ctx, true)) { 5144 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5145 goto out_restart; 5146 } 5147 5148 goto out; 5149 5150 out_restart: 5151 /* things keep failing, better restart the hw */ 5152 iwl_mvm_nic_restart(mvm, false); 5153 5154 out: 5155 mutex_unlock(&mvm->mutex); 5156 5157 return ret; 5158 } 5159 5160 static int 5161 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5162 struct ieee80211_vif_chanctx_switch *vifs, 5163 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5164 { 5165 int ret; 5166 5167 mutex_lock(&mvm->mutex); 5168 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5169 vifs[0].old_ctx, true); 5170 5171 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5172 vifs[0].new_ctx, true); 5173 if (ret) { 5174 IWL_ERR(mvm, 5175 "failed to assign new_ctx during channel switch\n"); 5176 goto out_reassign; 5177 } 5178 5179 goto out; 5180 5181 out_reassign: 5182 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5183 vifs[0].old_ctx, true)) { 5184 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5185 goto out_restart; 5186 } 5187 5188 goto out; 5189 5190 out_restart: 5191 /* things keep failing, better restart the hw */ 5192 iwl_mvm_nic_restart(mvm, false); 5193 5194 out: 5195 mutex_unlock(&mvm->mutex); 5196 5197 return ret; 5198 } 5199 5200 /* Execute the common part for both MLD and non-MLD modes */ 5201 int 5202 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5203 struct ieee80211_vif_chanctx_switch *vifs, 5204 int n_vifs, 5205 enum ieee80211_chanctx_switch_mode mode, 5206 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5207 { 5208 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5209 int ret; 5210 5211 /* we only support a single-vif right now */ 5212 if (n_vifs > 1) 5213 return -EOPNOTSUPP; 5214 5215 switch (mode) { 5216 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5217 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5218 break; 5219 case CHANCTX_SWMODE_REASSIGN_VIF: 5220 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5221 break; 5222 default: 5223 ret = -EOPNOTSUPP; 5224 break; 5225 } 5226 5227 return ret; 5228 } 5229 5230 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5231 struct ieee80211_vif_chanctx_switch *vifs, 5232 int n_vifs, 5233 enum ieee80211_chanctx_switch_mode mode) 5234 { 5235 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5236 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5237 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5238 }; 5239 5240 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5241 } 5242 5243 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5244 { 5245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5246 5247 return mvm->ibss_manager; 5248 } 5249 5250 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5251 bool set) 5252 { 5253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5254 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5255 5256 if (!mvm_sta || !mvm_sta->vif) { 5257 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5258 return -EINVAL; 5259 } 5260 5261 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5262 &mvm_sta->vif->bss_conf); 5263 } 5264 5265 #ifdef CONFIG_NL80211_TESTMODE 5266 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5267 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5268 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5269 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5270 }; 5271 5272 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5273 struct ieee80211_vif *vif, 5274 void *data, int len) 5275 { 5276 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5277 int err; 5278 u32 noa_duration; 5279 5280 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5281 iwl_mvm_tm_policy, NULL); 5282 if (err) 5283 return err; 5284 5285 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5286 return -EINVAL; 5287 5288 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5289 case IWL_MVM_TM_CMD_SET_NOA: 5290 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5291 !vif->bss_conf.enable_beacon || 5292 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5293 return -EINVAL; 5294 5295 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5296 if (noa_duration >= vif->bss_conf.beacon_int) 5297 return -EINVAL; 5298 5299 mvm->noa_duration = noa_duration; 5300 mvm->noa_vif = vif; 5301 5302 return iwl_mvm_update_quotas(mvm, true, NULL); 5303 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5304 /* must be associated client vif - ignore authorized */ 5305 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5306 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5307 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5308 return -EINVAL; 5309 5310 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5311 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5312 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5313 } 5314 5315 return -EOPNOTSUPP; 5316 } 5317 5318 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5319 struct ieee80211_vif *vif, 5320 void *data, int len) 5321 { 5322 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5323 int err; 5324 5325 mutex_lock(&mvm->mutex); 5326 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5327 mutex_unlock(&mvm->mutex); 5328 5329 return err; 5330 } 5331 #endif 5332 5333 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5334 struct ieee80211_channel_switch *chsw) 5335 { 5336 /* By implementing this operation, we prevent mac80211 from 5337 * starting its own channel switch timer, so that we can call 5338 * ieee80211_chswitch_done() ourselves at the right time 5339 * (which is when the absence time event starts). 5340 */ 5341 5342 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5343 "dummy channel switch op\n"); 5344 } 5345 5346 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5347 struct ieee80211_vif *vif, 5348 struct ieee80211_channel_switch *chsw) 5349 { 5350 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5351 struct iwl_chan_switch_te_cmd cmd = { 5352 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5353 mvmvif->color)), 5354 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5355 .tsf = cpu_to_le32(chsw->timestamp), 5356 .cs_count = chsw->count, 5357 .cs_mode = chsw->block_tx, 5358 }; 5359 5360 lockdep_assert_held(&mvm->mutex); 5361 5362 if (chsw->delay) 5363 cmd.cs_delayed_bcn_count = 5364 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5365 5366 return iwl_mvm_send_cmd_pdu(mvm, 5367 WIDE_ID(MAC_CONF_GROUP, 5368 CHANNEL_SWITCH_TIME_EVENT_CMD), 5369 0, sizeof(cmd), &cmd); 5370 } 5371 5372 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5373 struct ieee80211_vif *vif, 5374 struct ieee80211_channel_switch *chsw) 5375 { 5376 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5377 u32 apply_time; 5378 5379 /* Schedule the time event to a bit before beacon 1, 5380 * to make sure we're in the new channel when the 5381 * GO/AP arrives. In case count <= 1 immediately schedule the 5382 * TE (this might result with some packet loss or connection 5383 * loss). 5384 */ 5385 if (chsw->count <= 1) 5386 apply_time = 0; 5387 else 5388 apply_time = chsw->device_timestamp + 5389 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5390 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5391 5392 if (chsw->block_tx) 5393 iwl_mvm_csa_client_absent(mvm, vif); 5394 5395 if (mvmvif->bf_data.bf_enabled) { 5396 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5397 5398 if (ret) 5399 return ret; 5400 } 5401 5402 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5403 apply_time); 5404 5405 return 0; 5406 } 5407 5408 #define IWL_MAX_CSA_BLOCK_TX 1500 5409 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5410 struct ieee80211_vif *vif, 5411 struct ieee80211_channel_switch *chsw) 5412 { 5413 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5414 struct ieee80211_vif *csa_vif; 5415 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5416 int ret; 5417 5418 mutex_lock(&mvm->mutex); 5419 5420 mvmvif->csa_failed = false; 5421 5422 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5423 chsw->chandef.center_freq1); 5424 5425 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5426 ieee80211_vif_to_wdev(vif), 5427 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5428 5429 switch (vif->type) { 5430 case NL80211_IFTYPE_AP: 5431 csa_vif = 5432 rcu_dereference_protected(mvm->csa_vif, 5433 lockdep_is_held(&mvm->mutex)); 5434 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5435 "Another CSA is already in progress")) { 5436 ret = -EBUSY; 5437 goto out_unlock; 5438 } 5439 5440 /* we still didn't unblock tx. prevent new CS meanwhile */ 5441 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5442 lockdep_is_held(&mvm->mutex))) { 5443 ret = -EBUSY; 5444 goto out_unlock; 5445 } 5446 5447 rcu_assign_pointer(mvm->csa_vif, vif); 5448 5449 if (WARN_ONCE(mvmvif->csa_countdown, 5450 "Previous CSA countdown didn't complete")) { 5451 ret = -EBUSY; 5452 goto out_unlock; 5453 } 5454 5455 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5456 5457 break; 5458 case NL80211_IFTYPE_STATION: 5459 /* 5460 * In the new flow FW is in charge of timing the switch so there 5461 * is no need for all of this 5462 */ 5463 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5464 CHANNEL_SWITCH_ERROR_NOTIF, 5465 0)) 5466 break; 5467 5468 /* 5469 * We haven't configured the firmware to be associated yet since 5470 * we don't know the dtim period. In this case, the firmware can't 5471 * track the beacons. 5472 */ 5473 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5474 ret = -EBUSY; 5475 goto out_unlock; 5476 } 5477 5478 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5479 schedule_delayed_work(&mvmvif->csa_work, 0); 5480 5481 if (chsw->block_tx) { 5482 /* 5483 * In case of undetermined / long time with immediate 5484 * quiet monitor status to gracefully disconnect 5485 */ 5486 if (!chsw->count || 5487 chsw->count * vif->bss_conf.beacon_int > 5488 IWL_MAX_CSA_BLOCK_TX) 5489 schedule_delayed_work(&mvmvif->csa_work, 5490 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5491 } 5492 5493 if (!fw_has_capa(&mvm->fw->ucode_capa, 5494 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5495 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5496 if (ret) 5497 goto out_unlock; 5498 } else { 5499 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5500 } 5501 5502 mvmvif->csa_count = chsw->count; 5503 mvmvif->csa_misbehave = false; 5504 break; 5505 default: 5506 break; 5507 } 5508 5509 mvmvif->ps_disabled = true; 5510 5511 ret = iwl_mvm_power_update_ps(mvm); 5512 if (ret) 5513 goto out_unlock; 5514 5515 /* we won't be on this channel any longer */ 5516 iwl_mvm_teardown_tdls_peers(mvm); 5517 5518 out_unlock: 5519 mutex_unlock(&mvm->mutex); 5520 5521 return ret; 5522 } 5523 5524 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5525 struct ieee80211_vif *vif, 5526 struct ieee80211_channel_switch *chsw) 5527 { 5528 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5529 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5530 struct iwl_chan_switch_te_cmd cmd = { 5531 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5532 mvmvif->color)), 5533 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5534 .tsf = cpu_to_le32(chsw->timestamp), 5535 .cs_count = chsw->count, 5536 .cs_mode = chsw->block_tx, 5537 }; 5538 5539 /* 5540 * In the new flow FW is in charge of timing the switch so there is no 5541 * need for all of this 5542 */ 5543 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5544 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5545 return; 5546 5547 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5548 return; 5549 5550 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5551 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5552 5553 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5554 if (mvmvif->csa_misbehave) { 5555 /* Second time, give up on this AP*/ 5556 iwl_mvm_abort_channel_switch(hw, vif); 5557 ieee80211_chswitch_done(vif, false); 5558 mvmvif->csa_misbehave = false; 5559 return; 5560 } 5561 mvmvif->csa_misbehave = true; 5562 } 5563 mvmvif->csa_count = chsw->count; 5564 5565 mutex_lock(&mvm->mutex); 5566 if (mvmvif->csa_failed) 5567 goto out_unlock; 5568 5569 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5570 WIDE_ID(MAC_CONF_GROUP, 5571 CHANNEL_SWITCH_TIME_EVENT_CMD), 5572 0, sizeof(cmd), &cmd)); 5573 out_unlock: 5574 mutex_unlock(&mvm->mutex); 5575 } 5576 5577 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5578 { 5579 int i; 5580 5581 if (!iwl_mvm_has_new_tx_api(mvm)) { 5582 /* we can't ask the firmware anything if it is dead */ 5583 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5584 &mvm->status)) 5585 return; 5586 if (drop) { 5587 mutex_lock(&mvm->mutex); 5588 iwl_mvm_flush_tx_path(mvm, 5589 iwl_mvm_flushable_queues(mvm) & queues); 5590 mutex_unlock(&mvm->mutex); 5591 } else { 5592 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5593 } 5594 return; 5595 } 5596 5597 mutex_lock(&mvm->mutex); 5598 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5599 struct ieee80211_sta *sta; 5600 5601 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5602 lockdep_is_held(&mvm->mutex)); 5603 if (IS_ERR_OR_NULL(sta)) 5604 continue; 5605 5606 if (drop) 5607 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5608 else 5609 iwl_mvm_wait_sta_queues_empty(mvm, 5610 iwl_mvm_sta_from_mac80211(sta)); 5611 } 5612 mutex_unlock(&mvm->mutex); 5613 } 5614 5615 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5616 u32 queues, bool drop) 5617 { 5618 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5619 struct iwl_mvm_vif *mvmvif; 5620 struct iwl_mvm_sta *mvmsta; 5621 struct ieee80211_sta *sta; 5622 bool ap_sta_done = false; 5623 int i; 5624 u32 msk = 0; 5625 5626 if (!vif) { 5627 iwl_mvm_flush_no_vif(mvm, queues, drop); 5628 return; 5629 } 5630 5631 /* Make sure we're done with the deferred traffic before flushing */ 5632 flush_work(&mvm->add_stream_wk); 5633 5634 mutex_lock(&mvm->mutex); 5635 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5636 5637 /* flush the AP-station and all TDLS peers */ 5638 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5639 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5640 lockdep_is_held(&mvm->mutex)); 5641 if (IS_ERR_OR_NULL(sta)) 5642 continue; 5643 5644 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5645 if (mvmsta->vif != vif) 5646 continue; 5647 5648 if (sta == mvmvif->ap_sta) { 5649 if (ap_sta_done) 5650 continue; 5651 ap_sta_done = true; 5652 } 5653 5654 if (drop) { 5655 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5656 mvmsta->tfd_queue_msk)) 5657 IWL_ERR(mvm, "flush request fail\n"); 5658 } else { 5659 if (iwl_mvm_has_new_tx_api(mvm)) 5660 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5661 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5662 msk |= mvmsta->tfd_queue_msk; 5663 } 5664 } 5665 5666 mutex_unlock(&mvm->mutex); 5667 5668 /* this can take a while, and we may need/want other operations 5669 * to succeed while doing this, so do it without the mutex held 5670 * If the firmware is dead, this can't work... 5671 */ 5672 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5673 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5674 &mvm->status)) 5675 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5676 } 5677 5678 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5679 struct ieee80211_sta *sta) 5680 { 5681 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5682 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5683 struct iwl_mvm_link_sta *mvm_link_sta; 5684 struct ieee80211_link_sta *link_sta; 5685 int link_id; 5686 5687 mutex_lock(&mvm->mutex); 5688 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5689 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5690 lockdep_is_held(&mvm->mutex)); 5691 if (!mvm_link_sta) 5692 continue; 5693 5694 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5695 mvmsta->tfd_queue_msk)) 5696 IWL_ERR(mvm, "flush request fail\n"); 5697 } 5698 mutex_unlock(&mvm->mutex); 5699 } 5700 5701 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5702 struct survey_info *survey) 5703 { 5704 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5705 int ret; 5706 5707 memset(survey, 0, sizeof(*survey)); 5708 5709 /* only support global statistics right now */ 5710 if (idx != 0) 5711 return -ENOENT; 5712 5713 if (!fw_has_capa(&mvm->fw->ucode_capa, 5714 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5715 return -ENOENT; 5716 5717 mutex_lock(&mvm->mutex); 5718 5719 if (iwl_mvm_firmware_running(mvm)) { 5720 ret = iwl_mvm_request_statistics(mvm, false); 5721 if (ret) 5722 goto out; 5723 } 5724 5725 survey->filled = SURVEY_INFO_TIME | 5726 SURVEY_INFO_TIME_RX | 5727 SURVEY_INFO_TIME_TX | 5728 SURVEY_INFO_TIME_SCAN; 5729 survey->time = mvm->accu_radio_stats.on_time_rf + 5730 mvm->radio_stats.on_time_rf; 5731 do_div(survey->time, USEC_PER_MSEC); 5732 5733 survey->time_rx = mvm->accu_radio_stats.rx_time + 5734 mvm->radio_stats.rx_time; 5735 do_div(survey->time_rx, USEC_PER_MSEC); 5736 5737 survey->time_tx = mvm->accu_radio_stats.tx_time + 5738 mvm->radio_stats.tx_time; 5739 do_div(survey->time_tx, USEC_PER_MSEC); 5740 5741 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5742 mvm->radio_stats.on_time_scan; 5743 do_div(survey->time_scan, USEC_PER_MSEC); 5744 5745 ret = 0; 5746 out: 5747 mutex_unlock(&mvm->mutex); 5748 return ret; 5749 } 5750 5751 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5752 { 5753 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5754 u32 gi_ltf; 5755 5756 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5757 case RATE_MCS_CHAN_WIDTH_20: 5758 rinfo->bw = RATE_INFO_BW_20; 5759 break; 5760 case RATE_MCS_CHAN_WIDTH_40: 5761 rinfo->bw = RATE_INFO_BW_40; 5762 break; 5763 case RATE_MCS_CHAN_WIDTH_80: 5764 rinfo->bw = RATE_INFO_BW_80; 5765 break; 5766 case RATE_MCS_CHAN_WIDTH_160: 5767 rinfo->bw = RATE_INFO_BW_160; 5768 break; 5769 case RATE_MCS_CHAN_WIDTH_320: 5770 rinfo->bw = RATE_INFO_BW_320; 5771 break; 5772 } 5773 5774 if (format == RATE_MCS_CCK_MSK || 5775 format == RATE_MCS_LEGACY_OFDM_MSK) { 5776 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5777 5778 /* add the offset needed to get to the legacy ofdm indices */ 5779 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5780 rate += IWL_FIRST_OFDM_RATE; 5781 5782 switch (rate) { 5783 case IWL_RATE_1M_INDEX: 5784 rinfo->legacy = 10; 5785 break; 5786 case IWL_RATE_2M_INDEX: 5787 rinfo->legacy = 20; 5788 break; 5789 case IWL_RATE_5M_INDEX: 5790 rinfo->legacy = 55; 5791 break; 5792 case IWL_RATE_11M_INDEX: 5793 rinfo->legacy = 110; 5794 break; 5795 case IWL_RATE_6M_INDEX: 5796 rinfo->legacy = 60; 5797 break; 5798 case IWL_RATE_9M_INDEX: 5799 rinfo->legacy = 90; 5800 break; 5801 case IWL_RATE_12M_INDEX: 5802 rinfo->legacy = 120; 5803 break; 5804 case IWL_RATE_18M_INDEX: 5805 rinfo->legacy = 180; 5806 break; 5807 case IWL_RATE_24M_INDEX: 5808 rinfo->legacy = 240; 5809 break; 5810 case IWL_RATE_36M_INDEX: 5811 rinfo->legacy = 360; 5812 break; 5813 case IWL_RATE_48M_INDEX: 5814 rinfo->legacy = 480; 5815 break; 5816 case IWL_RATE_54M_INDEX: 5817 rinfo->legacy = 540; 5818 } 5819 return; 5820 } 5821 5822 rinfo->nss = u32_get_bits(rate_n_flags, 5823 RATE_MCS_NSS_MSK) + 1; 5824 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5825 RATE_HT_MCS_INDEX(rate_n_flags) : 5826 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5827 5828 if (rate_n_flags & RATE_MCS_SGI_MSK) 5829 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5830 5831 switch (format) { 5832 case RATE_MCS_EHT_MSK: 5833 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5834 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5835 break; 5836 case RATE_MCS_HE_MSK: 5837 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5838 5839 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5840 5841 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5842 rinfo->bw = RATE_INFO_BW_HE_RU; 5843 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5844 } 5845 5846 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5847 case RATE_MCS_HE_TYPE_SU: 5848 case RATE_MCS_HE_TYPE_EXT_SU: 5849 if (gi_ltf == 0 || gi_ltf == 1) 5850 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5851 else if (gi_ltf == 2) 5852 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5853 else if (gi_ltf == 3) 5854 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5855 else 5856 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5857 break; 5858 case RATE_MCS_HE_TYPE_MU: 5859 if (gi_ltf == 0 || gi_ltf == 1) 5860 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5861 else if (gi_ltf == 2) 5862 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5863 else 5864 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5865 break; 5866 case RATE_MCS_HE_TYPE_TRIG: 5867 if (gi_ltf == 0 || gi_ltf == 1) 5868 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5869 else 5870 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5871 break; 5872 } 5873 5874 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5875 rinfo->he_dcm = 1; 5876 break; 5877 case RATE_MCS_HT_MSK: 5878 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5879 break; 5880 case RATE_MCS_VHT_MSK: 5881 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5882 break; 5883 } 5884 } 5885 5886 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5887 struct ieee80211_vif *vif, 5888 struct ieee80211_sta *sta, 5889 struct station_info *sinfo) 5890 { 5891 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5892 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5893 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5894 5895 if (mvmsta->deflink.avg_energy) { 5896 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5897 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5898 } 5899 5900 if (iwl_mvm_has_tlc_offload(mvm)) { 5901 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5902 5903 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5904 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5905 } 5906 5907 /* if beacon filtering isn't on mac80211 does it anyway */ 5908 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5909 return; 5910 5911 if (!vif->cfg.assoc) 5912 return; 5913 5914 mutex_lock(&mvm->mutex); 5915 5916 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5917 goto unlock; 5918 5919 if (iwl_mvm_request_statistics(mvm, false)) 5920 goto unlock; 5921 5922 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5923 mvmvif->deflink.beacon_stats.accu_num_beacons; 5924 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5925 if (mvmvif->deflink.beacon_stats.avg_signal) { 5926 /* firmware only reports a value after RXing a few beacons */ 5927 sinfo->rx_beacon_signal_avg = 5928 mvmvif->deflink.beacon_stats.avg_signal; 5929 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5930 } 5931 unlock: 5932 mutex_unlock(&mvm->mutex); 5933 } 5934 5935 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5936 struct ieee80211_vif *vif, 5937 const struct ieee80211_mlme_event *mlme) 5938 { 5939 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5940 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5941 iwl_dbg_tlv_time_point(&mvm->fwrt, 5942 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5943 NULL); 5944 return; 5945 } 5946 5947 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5948 iwl_dbg_tlv_time_point(&mvm->fwrt, 5949 IWL_FW_INI_TIME_POINT_DEASSOC, 5950 NULL); 5951 return; 5952 } 5953 } 5954 5955 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5956 struct ieee80211_vif *vif, 5957 const struct ieee80211_event *event) 5958 { 5959 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5960 do { \ 5961 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5962 break; \ 5963 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5964 } while (0) 5965 5966 struct iwl_fw_dbg_trigger_tlv *trig; 5967 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5968 5969 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5970 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5971 return; 5972 } 5973 5974 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5975 FW_DBG_TRIGGER_MLME); 5976 if (!trig) 5977 return; 5978 5979 trig_mlme = (void *)trig->data; 5980 5981 if (event->u.mlme.data == ASSOC_EVENT) { 5982 if (event->u.mlme.status == MLME_DENIED) 5983 CHECK_MLME_TRIGGER(stop_assoc_denied, 5984 "DENIED ASSOC: reason %d", 5985 event->u.mlme.reason); 5986 else if (event->u.mlme.status == MLME_TIMEOUT) 5987 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5988 "ASSOC TIMEOUT"); 5989 } else if (event->u.mlme.data == AUTH_EVENT) { 5990 if (event->u.mlme.status == MLME_DENIED) 5991 CHECK_MLME_TRIGGER(stop_auth_denied, 5992 "DENIED AUTH: reason %d", 5993 event->u.mlme.reason); 5994 else if (event->u.mlme.status == MLME_TIMEOUT) 5995 CHECK_MLME_TRIGGER(stop_auth_timeout, 5996 "AUTH TIMEOUT"); 5997 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5998 CHECK_MLME_TRIGGER(stop_rx_deauth, 5999 "DEAUTH RX %d", event->u.mlme.reason); 6000 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6001 CHECK_MLME_TRIGGER(stop_tx_deauth, 6002 "DEAUTH TX %d", event->u.mlme.reason); 6003 } 6004 #undef CHECK_MLME_TRIGGER 6005 } 6006 6007 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6008 struct ieee80211_vif *vif, 6009 const struct ieee80211_event *event) 6010 { 6011 struct iwl_fw_dbg_trigger_tlv *trig; 6012 struct iwl_fw_dbg_trigger_ba *ba_trig; 6013 6014 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6015 FW_DBG_TRIGGER_BA); 6016 if (!trig) 6017 return; 6018 6019 ba_trig = (void *)trig->data; 6020 6021 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6022 return; 6023 6024 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6025 "BAR received from %pM, tid %d, ssn %d", 6026 event->u.ba.sta->addr, event->u.ba.tid, 6027 event->u.ba.ssn); 6028 } 6029 6030 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6031 struct ieee80211_vif *vif, 6032 const struct ieee80211_event *event) 6033 { 6034 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6035 6036 switch (event->type) { 6037 case MLME_EVENT: 6038 iwl_mvm_event_mlme_callback(mvm, vif, event); 6039 break; 6040 case BAR_RX_EVENT: 6041 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6042 break; 6043 case BA_FRAME_TIMEOUT: 6044 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6045 event->u.ba.tid); 6046 break; 6047 default: 6048 break; 6049 } 6050 } 6051 6052 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6053 enum iwl_mvm_rxq_notif_type type, 6054 bool sync, 6055 const void *data, u32 size) 6056 { 6057 struct { 6058 struct iwl_rxq_sync_cmd cmd; 6059 struct iwl_mvm_internal_rxq_notif notif; 6060 } __packed cmd = { 6061 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6062 .cmd.count = 6063 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6064 size), 6065 .notif.type = type, 6066 .notif.sync = sync, 6067 }; 6068 struct iwl_host_cmd hcmd = { 6069 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6070 .data[0] = &cmd, 6071 .len[0] = sizeof(cmd), 6072 .data[1] = data, 6073 .len[1] = size, 6074 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6075 }; 6076 int ret; 6077 6078 /* size must be a multiple of DWORD */ 6079 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6080 return; 6081 6082 if (!iwl_mvm_has_new_rx_api(mvm)) 6083 return; 6084 6085 if (sync) { 6086 cmd.notif.cookie = mvm->queue_sync_cookie; 6087 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6088 } 6089 6090 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6091 if (ret) { 6092 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6093 goto out; 6094 } 6095 6096 if (sync) { 6097 lockdep_assert_held(&mvm->mutex); 6098 ret = wait_event_timeout(mvm->rx_sync_waitq, 6099 READ_ONCE(mvm->queue_sync_state) == 0, 6100 HZ); 6101 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx\n", 6102 mvm->queue_sync_state); 6103 } 6104 6105 out: 6106 if (sync) { 6107 mvm->queue_sync_state = 0; 6108 mvm->queue_sync_cookie++; 6109 } 6110 } 6111 6112 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6113 { 6114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6115 6116 mutex_lock(&mvm->mutex); 6117 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6118 mutex_unlock(&mvm->mutex); 6119 } 6120 6121 int 6122 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6123 struct ieee80211_vif *vif, 6124 struct cfg80211_ftm_responder_stats *stats) 6125 { 6126 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6127 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6128 6129 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6130 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6131 return -EINVAL; 6132 6133 mutex_lock(&mvm->mutex); 6134 *stats = mvm->ftm_resp_stats; 6135 mutex_unlock(&mvm->mutex); 6136 6137 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6138 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6139 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6140 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6141 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6142 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6143 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6144 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6145 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6146 6147 return 0; 6148 } 6149 6150 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6151 struct cfg80211_pmsr_request *request) 6152 { 6153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6154 int ret; 6155 6156 mutex_lock(&mvm->mutex); 6157 ret = iwl_mvm_ftm_start(mvm, vif, request); 6158 mutex_unlock(&mvm->mutex); 6159 6160 return ret; 6161 } 6162 6163 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6164 struct cfg80211_pmsr_request *request) 6165 { 6166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6167 6168 mutex_lock(&mvm->mutex); 6169 iwl_mvm_ftm_abort(mvm, request); 6170 mutex_unlock(&mvm->mutex); 6171 } 6172 6173 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6174 { 6175 u8 protocol = ip_hdr(skb)->protocol; 6176 6177 if (!IS_ENABLED(CONFIG_INET)) 6178 return false; 6179 6180 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6181 } 6182 6183 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6184 struct sk_buff *head, 6185 struct sk_buff *skb) 6186 { 6187 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6188 6189 /* For now don't aggregate IPv6 in AMSDU */ 6190 if (skb->protocol != htons(ETH_P_IP)) 6191 return false; 6192 6193 if (!iwl_mvm_is_csum_supported(mvm)) 6194 return true; 6195 6196 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6197 } 6198 6199 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6200 struct ieee80211_vif *vif, 6201 struct cfg80211_set_hw_timestamp *hwts) 6202 { 6203 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6204 u32 protocols = 0; 6205 int ret; 6206 6207 /* HW timestamping is only supported for a specific station */ 6208 if (!hwts->macaddr) 6209 return -EOPNOTSUPP; 6210 6211 if (hwts->enable) 6212 protocols = 6213 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6214 6215 mutex_lock(&mvm->mutex); 6216 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6217 mutex_unlock(&mvm->mutex); 6218 6219 return ret; 6220 } 6221 6222 const struct ieee80211_ops iwl_mvm_hw_ops = { 6223 .tx = iwl_mvm_mac_tx, 6224 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6225 .ampdu_action = iwl_mvm_mac_ampdu_action, 6226 .get_antenna = iwl_mvm_op_get_antenna, 6227 .start = iwl_mvm_mac_start, 6228 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6229 .stop = iwl_mvm_mac_stop, 6230 .add_interface = iwl_mvm_mac_add_interface, 6231 .remove_interface = iwl_mvm_mac_remove_interface, 6232 .config = iwl_mvm_mac_config, 6233 .prepare_multicast = iwl_mvm_prepare_multicast, 6234 .configure_filter = iwl_mvm_configure_filter, 6235 .config_iface_filter = iwl_mvm_config_iface_filter, 6236 .bss_info_changed = iwl_mvm_bss_info_changed, 6237 .hw_scan = iwl_mvm_mac_hw_scan, 6238 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6239 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6240 .sta_state = iwl_mvm_mac_sta_state, 6241 .sta_notify = iwl_mvm_mac_sta_notify, 6242 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6243 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6244 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6245 .sta_rc_update = iwl_mvm_sta_rc_update, 6246 .conf_tx = iwl_mvm_mac_conf_tx, 6247 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6248 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6249 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6250 .flush = iwl_mvm_mac_flush, 6251 .flush_sta = iwl_mvm_mac_flush_sta, 6252 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6253 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6254 .set_key = iwl_mvm_mac_set_key, 6255 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6256 .remain_on_channel = iwl_mvm_roc, 6257 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6258 .add_chanctx = iwl_mvm_add_chanctx, 6259 .remove_chanctx = iwl_mvm_remove_chanctx, 6260 .change_chanctx = iwl_mvm_change_chanctx, 6261 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6262 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6263 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6264 6265 .start_ap = iwl_mvm_start_ap, 6266 .stop_ap = iwl_mvm_stop_ap, 6267 .join_ibss = iwl_mvm_start_ibss, 6268 .leave_ibss = iwl_mvm_stop_ibss, 6269 6270 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6271 6272 .set_tim = iwl_mvm_set_tim, 6273 6274 .channel_switch = iwl_mvm_channel_switch, 6275 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6276 .post_channel_switch = iwl_mvm_post_channel_switch, 6277 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6278 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6279 6280 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6281 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6282 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6283 6284 .event_callback = iwl_mvm_mac_event_callback, 6285 6286 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6287 6288 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6289 6290 #ifdef CONFIG_PM_SLEEP 6291 /* look at d3.c */ 6292 .suspend = iwl_mvm_suspend, 6293 .resume = iwl_mvm_resume, 6294 .set_wakeup = iwl_mvm_set_wakeup, 6295 .set_rekey_data = iwl_mvm_set_rekey_data, 6296 #if IS_ENABLED(CONFIG_IPV6) 6297 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6298 #endif 6299 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6300 #endif 6301 .get_survey = iwl_mvm_mac_get_survey, 6302 .sta_statistics = iwl_mvm_mac_sta_statistics, 6303 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6304 .start_pmsr = iwl_mvm_start_pmsr, 6305 .abort_pmsr = iwl_mvm_abort_pmsr, 6306 6307 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6308 #ifdef CONFIG_IWLWIFI_DEBUGFS 6309 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6310 #endif 6311 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6312 }; 6313