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