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 && 319 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 320 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 321 322 /* With MLD FW API, it tracks timing by itself, 323 * no need for any timing from the host 324 */ 325 if (!mvm->mld_api_is_used) 326 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 327 328 /* We should probably have this, but mac80211 329 * currently doesn't support it for MLO. 330 */ 331 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 332 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 333 334 /* 335 * On older devices, enabling TX A-MSDU occasionally leads to 336 * something getting messed up, the command read from the FIFO 337 * gets out of sync and isn't a TX command, so that we have an 338 * assert EDC. 339 * 340 * It's not clear where the bug is, but since we didn't used to 341 * support A-MSDU until moving the mac80211 iTXQs, just leave it 342 * for older devices. We also don't see this issue on any newer 343 * devices. 344 */ 345 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 346 ieee80211_hw_set(hw, TX_AMSDU); 347 ieee80211_hw_set(hw, TX_FRAG_LIST); 348 349 if (iwl_mvm_has_tlc_offload(mvm)) { 350 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 351 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 352 } 353 354 if (iwl_mvm_has_new_rx_api(mvm)) 355 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 356 357 if (fw_has_capa(&mvm->fw->ucode_capa, 358 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 359 ieee80211_hw_set(hw, AP_LINK_PS); 360 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 361 /* 362 * we absolutely need this for the new TX API since that comes 363 * with many more queues than the current code can deal with 364 * for station powersave 365 */ 366 return -EINVAL; 367 } 368 369 if (mvm->trans->num_rx_queues > 1) 370 ieee80211_hw_set(hw, USES_RSS); 371 372 if (mvm->trans->max_skb_frags) 373 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 374 375 hw->queues = IEEE80211_NUM_ACS; 376 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 377 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 378 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 379 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 380 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 381 382 hw->radiotap_timestamp.units_pos = 383 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 384 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 385 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 386 hw->radiotap_timestamp.accuracy = 22; 387 388 if (!iwl_mvm_has_tlc_offload(mvm)) 389 hw->rate_control_algorithm = RS_NAME; 390 391 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 392 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 393 hw->max_tx_fragments = mvm->trans->max_skb_frags; 394 395 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 396 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 397 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 398 hw->wiphy->cipher_suites = mvm->ciphers; 399 400 if (iwl_mvm_has_new_rx_api(mvm)) { 401 mvm->ciphers[hw->wiphy->n_cipher_suites] = 402 WLAN_CIPHER_SUITE_GCMP; 403 hw->wiphy->n_cipher_suites++; 404 mvm->ciphers[hw->wiphy->n_cipher_suites] = 405 WLAN_CIPHER_SUITE_GCMP_256; 406 hw->wiphy->n_cipher_suites++; 407 } 408 409 if (iwlwifi_mod_params.swcrypto) 410 IWL_ERR(mvm, 411 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 412 if (!iwlwifi_mod_params.bt_coex_active) 413 IWL_ERR(mvm, 414 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 415 416 ieee80211_hw_set(hw, MFP_CAPABLE); 417 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 418 hw->wiphy->n_cipher_suites++; 419 if (iwl_mvm_has_new_rx_api(mvm)) { 420 mvm->ciphers[hw->wiphy->n_cipher_suites] = 421 WLAN_CIPHER_SUITE_BIP_GMAC_128; 422 hw->wiphy->n_cipher_suites++; 423 mvm->ciphers[hw->wiphy->n_cipher_suites] = 424 WLAN_CIPHER_SUITE_BIP_GMAC_256; 425 hw->wiphy->n_cipher_suites++; 426 } 427 428 wiphy_ext_feature_set(hw->wiphy, 429 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 430 wiphy_ext_feature_set(hw->wiphy, 431 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 432 433 if (fw_has_capa(&mvm->fw->ucode_capa, 434 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 435 wiphy_ext_feature_set(hw->wiphy, 436 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 437 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 438 } 439 440 if (sec_key_ver && 441 fw_has_capa(&mvm->fw->ucode_capa, 442 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 443 wiphy_ext_feature_set(hw->wiphy, 444 NL80211_EXT_FEATURE_BEACON_PROTECTION); 445 else if (fw_has_capa(&mvm->fw->ucode_capa, 446 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 447 wiphy_ext_feature_set(hw->wiphy, 448 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 449 450 if (fw_has_capa(&mvm->fw->ucode_capa, 451 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 452 hw->wiphy->hw_timestamp_max_peers = 1; 453 454 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 455 hw->wiphy->features |= 456 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 457 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 458 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 459 460 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 461 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 462 hw->chanctx_data_size = sizeof(u16); 463 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 464 465 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 466 BIT(NL80211_IFTYPE_P2P_CLIENT) | 467 BIT(NL80211_IFTYPE_AP) | 468 BIT(NL80211_IFTYPE_P2P_GO) | 469 BIT(NL80211_IFTYPE_P2P_DEVICE) | 470 BIT(NL80211_IFTYPE_ADHOC); 471 472 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 473 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 474 475 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 476 * the hw, preventing us to control which key(id) to use per MPDU. 477 * Till that's fixed we can't use Extended Key ID for the newer cards. 478 */ 479 if (!iwl_mvm_has_new_tx_api(mvm)) 480 wiphy_ext_feature_set(hw->wiphy, 481 NL80211_EXT_FEATURE_EXT_KEY_ID); 482 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 483 484 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 485 if (iwl_mvm_is_lar_supported(mvm)) 486 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 487 else 488 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 489 REGULATORY_DISABLE_BEACON_HINTS; 490 491 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 492 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 493 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 494 495 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 496 hw->wiphy->n_iface_combinations = 497 ARRAY_SIZE(iwl_mvm_iface_combinations); 498 499 hw->wiphy->max_remain_on_channel_duration = 10000; 500 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 501 502 /* Extract MAC address */ 503 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 504 hw->wiphy->addresses = mvm->addresses; 505 hw->wiphy->n_addresses = 1; 506 507 /* Extract additional MAC addresses if available */ 508 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 509 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 510 511 for (i = 1; i < num_mac; i++) { 512 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 513 ETH_ALEN); 514 mvm->addresses[i].addr[5]++; 515 hw->wiphy->n_addresses++; 516 } 517 518 iwl_mvm_reset_phy_ctxts(mvm); 519 520 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 521 522 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 523 524 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 525 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 526 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 527 528 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 529 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 530 else 531 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 532 533 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 534 hw->wiphy->bands[NL80211_BAND_2GHZ] = 535 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 536 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 537 hw->wiphy->bands[NL80211_BAND_5GHZ] = 538 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 539 540 if (fw_has_capa(&mvm->fw->ucode_capa, 541 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 542 fw_has_api(&mvm->fw->ucode_capa, 543 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 544 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 545 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 546 } 547 if (fw_has_capa(&mvm->fw->ucode_capa, 548 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 549 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 550 hw->wiphy->bands[NL80211_BAND_6GHZ] = 551 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 552 553 hw->wiphy->hw_version = mvm->trans->hw_id; 554 555 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 556 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 557 else 558 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 559 560 hw->wiphy->max_sched_scan_reqs = 1; 561 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 562 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 563 /* we create the 802.11 header and zero length SSID IE. */ 564 hw->wiphy->max_sched_scan_ie_len = 565 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 566 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 567 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 568 569 /* 570 * the firmware uses u8 for num of iterations, but 0xff is saved for 571 * infinite loop, so the maximum number of iterations is actually 254. 572 */ 573 hw->wiphy->max_sched_scan_plan_iterations = 254; 574 575 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 576 NL80211_FEATURE_LOW_PRIORITY_SCAN | 577 NL80211_FEATURE_P2P_GO_OPPPS | 578 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 579 NL80211_FEATURE_DYNAMIC_SMPS | 580 NL80211_FEATURE_STATIC_SMPS | 581 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 582 583 if (fw_has_capa(&mvm->fw->ucode_capa, 584 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 585 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 586 if (fw_has_capa(&mvm->fw->ucode_capa, 587 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 588 hw->wiphy->features |= NL80211_FEATURE_QUIET; 589 590 if (fw_has_capa(&mvm->fw->ucode_capa, 591 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 592 hw->wiphy->features |= 593 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 594 595 if (fw_has_capa(&mvm->fw->ucode_capa, 596 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 597 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 598 599 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 600 IWL_FW_CMD_VER_UNKNOWN) == 3) 601 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 602 603 if (fw_has_api(&mvm->fw->ucode_capa, 604 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 605 wiphy_ext_feature_set(hw->wiphy, 606 NL80211_EXT_FEATURE_SCAN_START_TIME); 607 wiphy_ext_feature_set(hw->wiphy, 608 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 609 } 610 611 if (iwl_mvm_is_oce_supported(mvm)) { 612 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 613 614 wiphy_ext_feature_set(hw->wiphy, 615 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 616 wiphy_ext_feature_set(hw->wiphy, 617 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 618 wiphy_ext_feature_set(hw->wiphy, 619 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 620 621 /* Old firmware also supports probe deferral and suppression */ 622 if (scan_ver < 15) 623 wiphy_ext_feature_set(hw->wiphy, 624 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 625 } 626 627 hw->wiphy->iftype_ext_capab = NULL; 628 hw->wiphy->num_iftype_ext_capab = 0; 629 630 if (mvm->nvm_data->sku_cap_11ax_enable && 631 !iwlwifi_mod_params.disable_11ax) { 632 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 633 hw->wiphy->num_iftype_ext_capab = 634 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 635 636 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 637 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 638 } 639 640 if (iwl_fw_lookup_cmd_ver(mvm->fw, 641 WIDE_ID(DATA_PATH_GROUP, 642 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 643 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 644 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 645 646 if (!hw->wiphy->iftype_ext_capab) { 647 hw->wiphy->num_iftype_ext_capab = 1; 648 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 649 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 650 } else { 651 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 652 } 653 } 654 655 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 656 657 #ifdef CONFIG_PM_SLEEP 658 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 659 mvm->trans->ops->d3_suspend && 660 mvm->trans->ops->d3_resume && 661 device_can_wakeup(mvm->trans->dev)) { 662 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 663 WIPHY_WOWLAN_DISCONNECT | 664 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 665 WIPHY_WOWLAN_RFKILL_RELEASE | 666 WIPHY_WOWLAN_NET_DETECT; 667 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 668 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 669 WIPHY_WOWLAN_4WAY_HANDSHAKE; 670 671 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 672 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 673 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 674 mvm->wowlan.max_nd_match_sets = 675 iwl_umac_scan_get_max_profiles(mvm->fw); 676 hw->wiphy->wowlan = &mvm->wowlan; 677 } 678 #endif 679 680 ret = iwl_mvm_leds_init(mvm); 681 if (ret) 682 return ret; 683 684 if (fw_has_capa(&mvm->fw->ucode_capa, 685 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 686 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 687 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 688 ieee80211_hw_set(hw, TDLS_WIDER_BW); 689 } 690 691 if (fw_has_capa(&mvm->fw->ucode_capa, 692 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 693 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 694 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 695 } 696 697 hw->netdev_features |= mvm->cfg->features; 698 if (!iwl_mvm_is_csum_supported(mvm)) 699 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 700 701 if (mvm->cfg->vht_mu_mimo_supported) 702 wiphy_ext_feature_set(hw->wiphy, 703 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 704 705 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 706 wiphy_ext_feature_set(hw->wiphy, 707 NL80211_EXT_FEATURE_PROTECTED_TWT); 708 709 iwl_mvm_vendor_cmds_register(mvm); 710 711 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 712 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 713 714 ret = ieee80211_register_hw(mvm->hw); 715 if (ret) { 716 iwl_mvm_leds_exit(mvm); 717 } 718 719 return ret; 720 } 721 722 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 723 struct ieee80211_sta *sta) 724 { 725 if (likely(sta)) { 726 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 727 return; 728 } else { 729 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 730 return; 731 } 732 733 ieee80211_free_txskb(mvm->hw, skb); 734 } 735 736 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 737 struct ieee80211_tx_control *control, struct sk_buff *skb) 738 { 739 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 740 struct ieee80211_sta *sta = control->sta; 741 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 742 struct ieee80211_hdr *hdr = (void *)skb->data; 743 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 744 IEEE80211_TX_CTL_TX_OFFCHAN; 745 u32 link_id = u32_get_bits(info->control.flags, 746 IEEE80211_TX_CTRL_MLO_LINK); 747 struct ieee80211_sta *tmp_sta = sta; 748 749 if (iwl_mvm_is_radio_killed(mvm)) { 750 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 751 goto drop; 752 } 753 754 if (offchannel && 755 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 756 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 757 goto drop; 758 759 /* 760 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 761 * so we treat the others as broadcast 762 */ 763 if (ieee80211_is_mgmt(hdr->frame_control)) 764 sta = NULL; 765 766 /* If there is no sta, and it's not offchannel - send through AP */ 767 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 768 !offchannel) { 769 struct iwl_mvm_vif *mvmvif = 770 iwl_mvm_vif_from_mac80211(info->control.vif); 771 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 772 773 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 774 /* mac80211 holds rcu read lock */ 775 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 776 if (IS_ERR_OR_NULL(sta)) 777 goto drop; 778 } 779 } 780 781 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 782 !ieee80211_is_probe_resp(hdr->frame_control)) { 783 /* translate MLD addresses to LINK addresses */ 784 struct ieee80211_link_sta *link_sta = 785 rcu_dereference(tmp_sta->link[link_id]); 786 struct ieee80211_bss_conf *link_conf = 787 rcu_dereference(info->control.vif->link_conf[link_id]); 788 struct ieee80211_mgmt *mgmt; 789 790 if (WARN_ON(!link_sta || !link_conf)) 791 goto drop; 792 793 /* if sta is NULL, the frame is a management frame */ 794 mgmt = (void *)hdr; 795 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 796 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 797 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 798 } 799 800 iwl_mvm_tx_skb(mvm, skb, sta); 801 return; 802 drop: 803 ieee80211_free_txskb(hw, skb); 804 } 805 806 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 807 { 808 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 809 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 810 struct sk_buff *skb = NULL; 811 812 /* 813 * No need for threads to be pending here, they can leave the first 814 * taker all the work. 815 * 816 * mvmtxq->tx_request logic: 817 * 818 * If 0, no one is currently TXing, set to 1 to indicate current thread 819 * will now start TX and other threads should quit. 820 * 821 * If 1, another thread is currently TXing, set to 2 to indicate to 822 * that thread that there was another request. Since that request may 823 * have raced with the check whether the queue is empty, the TXing 824 * thread should check the queue's status one more time before leaving. 825 * This check is done in order to not leave any TX hanging in the queue 826 * until the next TX invocation (which may not even happen). 827 * 828 * If 2, another thread is currently TXing, and it will already double 829 * check the queue, so do nothing. 830 */ 831 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 832 return; 833 834 rcu_read_lock(); 835 do { 836 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 837 &mvmtxq->state) && 838 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 839 &mvmtxq->state) && 840 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 841 skb = ieee80211_tx_dequeue(hw, txq); 842 843 if (!skb) { 844 if (txq->sta) 845 IWL_DEBUG_TX(mvm, 846 "TXQ of sta %pM tid %d is now empty\n", 847 txq->sta->addr, 848 txq->tid); 849 break; 850 } 851 852 iwl_mvm_tx_skb(mvm, skb, txq->sta); 853 } 854 } while (atomic_dec_return(&mvmtxq->tx_request)); 855 rcu_read_unlock(); 856 } 857 858 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 859 struct ieee80211_txq *txq) 860 { 861 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 862 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 863 864 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 865 !txq->sta) { 866 iwl_mvm_mac_itxq_xmit(hw, txq); 867 return; 868 } 869 870 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 871 * to handle any packets we leave on the txq now 872 */ 873 874 spin_lock_bh(&mvm->add_stream_lock); 875 /* The list is being deleted only after the queue is fully allocated. */ 876 if (list_empty(&mvmtxq->list) && 877 /* recheck under lock */ 878 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 879 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 880 schedule_work(&mvm->add_stream_wk); 881 } 882 spin_unlock_bh(&mvm->add_stream_lock); 883 } 884 885 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 886 do { \ 887 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 888 break; \ 889 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 890 } while (0) 891 892 static void 893 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 894 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 895 enum ieee80211_ampdu_mlme_action action) 896 { 897 struct iwl_fw_dbg_trigger_tlv *trig; 898 struct iwl_fw_dbg_trigger_ba *ba_trig; 899 900 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 901 FW_DBG_TRIGGER_BA); 902 if (!trig) 903 return; 904 905 ba_trig = (void *)trig->data; 906 907 switch (action) { 908 case IEEE80211_AMPDU_TX_OPERATIONAL: { 909 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 910 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 911 912 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 913 "TX AGG START: MAC %pM tid %d ssn %d\n", 914 sta->addr, tid, tid_data->ssn); 915 break; 916 } 917 case IEEE80211_AMPDU_TX_STOP_CONT: 918 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 919 "TX AGG STOP: MAC %pM tid %d\n", 920 sta->addr, tid); 921 break; 922 case IEEE80211_AMPDU_RX_START: 923 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 924 "RX AGG START: MAC %pM tid %d ssn %d\n", 925 sta->addr, tid, rx_ba_ssn); 926 break; 927 case IEEE80211_AMPDU_RX_STOP: 928 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 929 "RX AGG STOP: MAC %pM tid %d\n", 930 sta->addr, tid); 931 break; 932 default: 933 break; 934 } 935 } 936 937 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 938 struct ieee80211_vif *vif, 939 struct ieee80211_ampdu_params *params) 940 { 941 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 942 int ret; 943 struct ieee80211_sta *sta = params->sta; 944 enum ieee80211_ampdu_mlme_action action = params->action; 945 u16 tid = params->tid; 946 u16 *ssn = ¶ms->ssn; 947 u16 buf_size = params->buf_size; 948 bool amsdu = params->amsdu; 949 u16 timeout = params->timeout; 950 951 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 952 sta->addr, tid, action); 953 954 if (!(mvm->nvm_data->sku_cap_11n_enable)) 955 return -EACCES; 956 957 mutex_lock(&mvm->mutex); 958 959 switch (action) { 960 case IEEE80211_AMPDU_RX_START: 961 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 962 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 963 struct iwl_mvm_vif *mvmvif; 964 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 965 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 966 967 mdata->opened_rx_ba_sessions = true; 968 mvmvif = iwl_mvm_vif_from_mac80211(vif); 969 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 970 } 971 if (!iwl_enable_rx_ampdu()) { 972 ret = -EINVAL; 973 break; 974 } 975 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 976 timeout); 977 break; 978 case IEEE80211_AMPDU_RX_STOP: 979 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 980 timeout); 981 break; 982 case IEEE80211_AMPDU_TX_START: 983 if (!iwl_enable_tx_ampdu()) { 984 ret = -EINVAL; 985 break; 986 } 987 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 988 break; 989 case IEEE80211_AMPDU_TX_STOP_CONT: 990 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 991 break; 992 case IEEE80211_AMPDU_TX_STOP_FLUSH: 993 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 994 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 995 break; 996 case IEEE80211_AMPDU_TX_OPERATIONAL: 997 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 998 buf_size, amsdu); 999 break; 1000 default: 1001 WARN_ON_ONCE(1); 1002 ret = -EINVAL; 1003 break; 1004 } 1005 1006 if (!ret) { 1007 u16 rx_ba_ssn = 0; 1008 1009 if (action == IEEE80211_AMPDU_RX_START) 1010 rx_ba_ssn = *ssn; 1011 1012 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1013 rx_ba_ssn, action); 1014 } 1015 mutex_unlock(&mvm->mutex); 1016 1017 return ret; 1018 } 1019 1020 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1021 struct ieee80211_vif *vif) 1022 { 1023 struct iwl_mvm *mvm = data; 1024 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1025 struct iwl_probe_resp_data *probe_data; 1026 unsigned int link_id; 1027 1028 mvmvif->uploaded = false; 1029 1030 spin_lock_bh(&mvm->time_event_lock); 1031 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1032 spin_unlock_bh(&mvm->time_event_lock); 1033 1034 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1035 1036 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1037 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1038 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1039 mvmvif->link[link_id]->phy_ctxt = NULL; 1040 mvmvif->link[link_id]->active = 0; 1041 mvmvif->link[link_id]->igtk = NULL; 1042 } 1043 1044 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1045 lockdep_is_held(&mvm->mutex)); 1046 if (probe_data) 1047 kfree_rcu(probe_data, rcu_head); 1048 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1049 } 1050 1051 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1052 { 1053 iwl_mvm_stop_device(mvm); 1054 1055 mvm->cur_aid = 0; 1056 1057 mvm->scan_status = 0; 1058 mvm->ps_disabled = false; 1059 mvm->rfkill_safe_init_done = false; 1060 1061 /* just in case one was running */ 1062 iwl_mvm_cleanup_roc_te(mvm); 1063 ieee80211_remain_on_channel_expired(mvm->hw); 1064 1065 iwl_mvm_ftm_restart(mvm); 1066 1067 /* 1068 * cleanup all interfaces, even inactive ones, as some might have 1069 * gone down during the HW restart 1070 */ 1071 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1072 1073 mvm->p2p_device_vif = NULL; 1074 1075 iwl_mvm_reset_phy_ctxts(mvm); 1076 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1077 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1078 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1079 1080 ieee80211_wake_queues(mvm->hw); 1081 1082 mvm->rx_ba_sessions = 0; 1083 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1084 mvm->monitor_on = false; 1085 #ifdef CONFIG_IWLWIFI_DEBUGFS 1086 mvm->beacon_inject_active = false; 1087 #endif 1088 1089 /* keep statistics ticking */ 1090 iwl_mvm_accu_radio_stats(mvm); 1091 } 1092 1093 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1094 { 1095 int ret; 1096 1097 lockdep_assert_held(&mvm->mutex); 1098 1099 ret = iwl_mvm_mei_get_ownership(mvm); 1100 if (ret) 1101 return ret; 1102 1103 if (mvm->mei_nvm_data) { 1104 /* We got the NIC, we can now free the MEI NVM data */ 1105 kfree(mvm->mei_nvm_data); 1106 mvm->mei_nvm_data = NULL; 1107 1108 /* 1109 * We can't free the nvm_data we allocated based on the SAP 1110 * data because we registered to cfg80211 with the channels 1111 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1112 * just in order to be able free it later. 1113 * NULLify nvm_data so that we will read the NVM from the 1114 * firmware this time. 1115 */ 1116 mvm->temp_nvm_data = mvm->nvm_data; 1117 mvm->nvm_data = NULL; 1118 } 1119 1120 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1121 /* 1122 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1123 * so later code will - from now on - see that we're doing it. 1124 */ 1125 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1126 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1127 /* Clean up some internal and mac80211 state on restart */ 1128 iwl_mvm_restart_cleanup(mvm); 1129 } 1130 ret = iwl_mvm_up(mvm); 1131 1132 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1133 NULL); 1134 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1135 NULL); 1136 1137 mvm->last_reset_or_resume_time_jiffies = jiffies; 1138 1139 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1140 /* Something went wrong - we need to finish some cleanup 1141 * that normally iwl_mvm_mac_restart_complete() below 1142 * would do. 1143 */ 1144 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1145 } 1146 1147 return ret; 1148 } 1149 1150 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1151 { 1152 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1153 int ret; 1154 int retry, max_retry = 0; 1155 1156 mutex_lock(&mvm->mutex); 1157 1158 /* we are starting the mac not in error flow, and restart is enabled */ 1159 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1160 iwlwifi_mod_params.fw_restart) { 1161 max_retry = IWL_MAX_INIT_RETRY; 1162 /* 1163 * This will prevent mac80211 recovery flows to trigger during 1164 * init failures 1165 */ 1166 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1167 } 1168 1169 for (retry = 0; retry <= max_retry; retry++) { 1170 ret = __iwl_mvm_mac_start(mvm); 1171 if (!ret) 1172 break; 1173 1174 /* 1175 * In PLDR sync PCI re-enumeration is needed. no point to retry 1176 * mac start before that. 1177 */ 1178 if (mvm->pldr_sync) { 1179 iwl_mei_alive_notif(false); 1180 iwl_trans_pcie_remove(mvm->trans, true); 1181 break; 1182 } 1183 1184 IWL_ERR(mvm, "mac start retry %d\n", retry); 1185 } 1186 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1187 1188 mutex_unlock(&mvm->mutex); 1189 1190 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1191 1192 return ret; 1193 } 1194 1195 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1196 { 1197 int ret; 1198 1199 mutex_lock(&mvm->mutex); 1200 1201 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1202 1203 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1204 if (ret) 1205 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1206 ret); 1207 1208 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1209 1210 /* 1211 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1212 * of packets the FW sent out, so we must reconnect. 1213 */ 1214 iwl_mvm_teardown_tdls_peers(mvm); 1215 1216 mutex_unlock(&mvm->mutex); 1217 } 1218 1219 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1220 enum ieee80211_reconfig_type reconfig_type) 1221 { 1222 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1223 1224 switch (reconfig_type) { 1225 case IEEE80211_RECONFIG_TYPE_RESTART: 1226 iwl_mvm_restart_complete(mvm); 1227 break; 1228 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1229 break; 1230 } 1231 } 1232 1233 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1234 { 1235 lockdep_assert_held(&mvm->mutex); 1236 1237 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1238 1239 /* firmware counters are obviously reset now, but we shouldn't 1240 * partially track so also clear the fw_reset_accu counters. 1241 */ 1242 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1243 1244 /* async_handlers_wk is now blocked */ 1245 1246 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1247 iwl_mvm_rm_aux_sta(mvm); 1248 1249 iwl_mvm_stop_device(mvm); 1250 1251 iwl_mvm_async_handlers_purge(mvm); 1252 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1253 1254 /* 1255 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1256 * hw (as restart_complete() won't be called in this case) and mac80211 1257 * won't execute the restart. 1258 * But make sure to cleanup interfaces that have gone down before/during 1259 * HW restart was requested. 1260 */ 1261 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1262 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1263 &mvm->status)) 1264 ieee80211_iterate_interfaces(mvm->hw, 0, 1265 iwl_mvm_cleanup_iterator, mvm); 1266 1267 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1268 * make sure there's nothing left there and warn if any is found. 1269 */ 1270 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1271 int i; 1272 1273 for (i = 0; i < mvm->max_scans; i++) { 1274 if (WARN_ONCE(mvm->scan_uid_status[i], 1275 "UMAC scan UID %d status was not cleaned\n", 1276 i)) 1277 mvm->scan_uid_status[i] = 0; 1278 } 1279 } 1280 } 1281 1282 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1283 { 1284 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1285 1286 flush_work(&mvm->async_handlers_wk); 1287 flush_work(&mvm->add_stream_wk); 1288 1289 /* 1290 * Lock and clear the firmware running bit here already, so that 1291 * new commands coming in elsewhere, e.g. from debugfs, will not 1292 * be able to proceed. This is important here because one of those 1293 * debugfs files causes the firmware dump to be triggered, and if we 1294 * don't stop debugfs accesses before canceling that it could be 1295 * retriggered after we flush it but before we've cleared the bit. 1296 */ 1297 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1298 1299 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1300 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1301 1302 /* 1303 * The work item could be running or queued if the 1304 * ROC time event stops just as we get here. 1305 */ 1306 flush_work(&mvm->roc_done_wk); 1307 1308 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1309 1310 mutex_lock(&mvm->mutex); 1311 __iwl_mvm_mac_stop(mvm); 1312 mutex_unlock(&mvm->mutex); 1313 1314 /* 1315 * The worker might have been waiting for the mutex, let it run and 1316 * discover that its list is now empty. 1317 */ 1318 cancel_work_sync(&mvm->async_handlers_wk); 1319 } 1320 1321 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1322 { 1323 u16 i; 1324 1325 lockdep_assert_held(&mvm->mutex); 1326 1327 for (i = 0; i < NUM_PHY_CTX; i++) 1328 if (!mvm->phy_ctxts[i].ref) 1329 return &mvm->phy_ctxts[i]; 1330 1331 IWL_ERR(mvm, "No available PHY context\n"); 1332 return NULL; 1333 } 1334 1335 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1336 s16 tx_power) 1337 { 1338 u32 cmd_id = REDUCE_TX_POWER_CMD; 1339 int len; 1340 struct iwl_dev_tx_power_cmd cmd = { 1341 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1342 .common.mac_context_id = 1343 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1344 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1345 }; 1346 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1347 IWL_FW_CMD_VER_UNKNOWN); 1348 1349 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1350 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1351 1352 if (cmd_ver == 7) 1353 len = sizeof(cmd.v7); 1354 else if (cmd_ver == 6) 1355 len = sizeof(cmd.v6); 1356 else if (fw_has_api(&mvm->fw->ucode_capa, 1357 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1358 len = sizeof(cmd.v5); 1359 else if (fw_has_capa(&mvm->fw->ucode_capa, 1360 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1361 len = sizeof(cmd.v4); 1362 else 1363 len = sizeof(cmd.v3); 1364 1365 /* all structs have the same common part, add it */ 1366 len += sizeof(cmd.common); 1367 1368 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1369 } 1370 1371 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1372 struct ieee80211_vif *vif) 1373 { 1374 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1375 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1376 int ret; 1377 1378 mutex_lock(&mvm->mutex); 1379 1380 if (vif->type == NL80211_IFTYPE_STATION) { 1381 struct iwl_mvm_sta *mvmsta; 1382 1383 mvmvif->csa_bcn_pending = false; 1384 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1385 mvmvif->deflink.ap_sta_id); 1386 1387 if (WARN_ON(!mvmsta)) { 1388 ret = -EIO; 1389 goto out_unlock; 1390 } 1391 1392 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1393 if (mvm->mld_api_is_used) 1394 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1395 else 1396 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1397 1398 if (!fw_has_capa(&mvm->fw->ucode_capa, 1399 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1400 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1401 if (ret) 1402 goto out_unlock; 1403 1404 iwl_mvm_stop_session_protection(mvm, vif); 1405 } 1406 } 1407 1408 mvmvif->ps_disabled = false; 1409 1410 ret = iwl_mvm_power_update_ps(mvm); 1411 1412 out_unlock: 1413 if (mvmvif->csa_failed) 1414 ret = -EIO; 1415 mutex_unlock(&mvm->mutex); 1416 1417 return ret; 1418 } 1419 1420 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1421 struct ieee80211_vif *vif) 1422 { 1423 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1424 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1425 struct iwl_chan_switch_te_cmd cmd = { 1426 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1427 mvmvif->color)), 1428 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1429 }; 1430 1431 /* 1432 * In the new flow since FW is in charge of the timing, 1433 * if driver has canceled the channel switch he will receive the 1434 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1435 */ 1436 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1437 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1438 return; 1439 1440 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1441 1442 mutex_lock(&mvm->mutex); 1443 if (!fw_has_capa(&mvm->fw->ucode_capa, 1444 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1445 iwl_mvm_remove_csa_period(mvm, vif); 1446 else 1447 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1448 WIDE_ID(MAC_CONF_GROUP, 1449 CHANNEL_SWITCH_TIME_EVENT_CMD), 1450 0, sizeof(cmd), &cmd)); 1451 mvmvif->csa_failed = true; 1452 mutex_unlock(&mvm->mutex); 1453 1454 iwl_mvm_post_channel_switch(hw, vif); 1455 } 1456 1457 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1458 { 1459 struct iwl_mvm_vif *mvmvif; 1460 struct ieee80211_vif *vif; 1461 1462 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1463 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1464 1465 /* Trigger disconnect (should clear the CSA state) */ 1466 ieee80211_chswitch_done(vif, false); 1467 } 1468 1469 static u8 1470 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1471 { 1472 int data_start; 1473 int control_start; 1474 int bw; 1475 1476 if (chandef->width == NL80211_CHAN_WIDTH_320) 1477 bw = 320; 1478 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1479 bw = 160; 1480 else 1481 return 0; 1482 1483 /* data is bw wide so the start is half the width */ 1484 data_start = chandef->center_freq1 - bw / 2; 1485 /* control is 20Mhz width */ 1486 control_start = chandef->chan->center_freq - 10; 1487 1488 return (control_start - data_start) / 80; 1489 } 1490 1491 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1492 struct ieee80211_vif *vif) 1493 { 1494 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1495 int ret; 1496 1497 lockdep_assert_held(&mvm->mutex); 1498 1499 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1500 if (ret) { 1501 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1502 return ret; 1503 } 1504 1505 /* Only queue for this station is the mcast queue, 1506 * which shouldn't be in TFD mask anyway 1507 */ 1508 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1509 vif->type, 1510 IWL_STA_MULTICAST); 1511 } 1512 1513 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1514 struct ieee80211_vif *vif) 1515 { 1516 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1517 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1518 int ret; 1519 1520 mutex_lock(&mvm->mutex); 1521 1522 mvmvif->mvm = mvm; 1523 1524 /* the first link always points to the default one */ 1525 mvmvif->link[0] = &mvmvif->deflink; 1526 1527 /* 1528 * Not much to do here. The stack will not allow interface 1529 * types or combinations that we didn't advertise, so we 1530 * don't really have to check the types. 1531 */ 1532 1533 /* make sure that beacon statistics don't go backwards with FW reset */ 1534 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1535 mvmvif->deflink.beacon_stats.accu_num_beacons += 1536 mvmvif->deflink.beacon_stats.num_beacons; 1537 1538 /* Allocate resources for the MAC context, and add it to the fw */ 1539 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1540 if (ret) 1541 goto out; 1542 1543 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1544 1545 /* Currently not much to do for NAN */ 1546 if (vif->type == NL80211_IFTYPE_NAN) { 1547 ret = 0; 1548 goto out; 1549 } 1550 1551 /* 1552 * The AP binding flow can be done only after the beacon 1553 * template is configured (which happens only in the mac80211 1554 * start_ap() flow), and adding the broadcast station can happen 1555 * only after the binding. 1556 * In addition, since modifying the MAC before adding a bcast 1557 * station is not allowed by the FW, delay the adding of MAC context to 1558 * the point where we can also add the bcast station. 1559 * In short: there's not much we can do at this point, other than 1560 * allocating resources :) 1561 */ 1562 if (vif->type == NL80211_IFTYPE_AP || 1563 vif->type == NL80211_IFTYPE_ADHOC) { 1564 iwl_mvm_vif_dbgfs_register(mvm, vif); 1565 ret = 0; 1566 goto out; 1567 } 1568 1569 mvmvif->features |= hw->netdev_features; 1570 1571 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1572 if (ret) 1573 goto out_unlock; 1574 1575 ret = iwl_mvm_power_update_mac(mvm); 1576 if (ret) 1577 goto out_remove_mac; 1578 1579 /* beacon filtering */ 1580 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1581 if (ret) 1582 goto out_remove_mac; 1583 1584 if (!mvm->bf_allowed_vif && 1585 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1586 mvm->bf_allowed_vif = mvmvif; 1587 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1588 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1589 } 1590 1591 /* 1592 * P2P_DEVICE interface does not have a channel context assigned to it, 1593 * so a dedicated PHY context is allocated to it and the corresponding 1594 * MAC context is bound to it at this stage. 1595 */ 1596 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1597 1598 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1599 if (!mvmvif->deflink.phy_ctxt) { 1600 ret = -ENOSPC; 1601 goto out_free_bf; 1602 } 1603 1604 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 1605 ret = iwl_mvm_binding_add_vif(mvm, vif); 1606 if (ret) 1607 goto out_unref_phy; 1608 1609 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1610 if (ret) 1611 goto out_unbind; 1612 1613 /* Save a pointer to p2p device vif, so it can later be used to 1614 * update the p2p device MAC when a GO is started/stopped */ 1615 mvm->p2p_device_vif = vif; 1616 } 1617 1618 iwl_mvm_tcm_add_vif(mvm, vif); 1619 INIT_DELAYED_WORK(&mvmvif->csa_work, 1620 iwl_mvm_channel_switch_disconnect_wk); 1621 1622 if (vif->type == NL80211_IFTYPE_MONITOR) { 1623 mvm->monitor_on = true; 1624 mvm->monitor_p80 = 1625 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1626 } 1627 1628 iwl_mvm_vif_dbgfs_register(mvm, vif); 1629 1630 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1631 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1632 !mvm->csme_vif && mvm->mei_registered) { 1633 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1634 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1635 mvm->csme_vif = vif; 1636 } 1637 1638 out: 1639 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1640 vif->type == NL80211_IFTYPE_ADHOC)) 1641 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1642 1643 goto out_unlock; 1644 1645 out_unbind: 1646 iwl_mvm_binding_remove_vif(mvm, vif); 1647 out_unref_phy: 1648 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1649 out_free_bf: 1650 if (mvm->bf_allowed_vif == mvmvif) { 1651 mvm->bf_allowed_vif = NULL; 1652 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1653 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1654 } 1655 out_remove_mac: 1656 mvmvif->deflink.phy_ctxt = NULL; 1657 iwl_mvm_mac_ctxt_remove(mvm, vif); 1658 out_unlock: 1659 mutex_unlock(&mvm->mutex); 1660 1661 return ret; 1662 } 1663 1664 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1665 struct ieee80211_vif *vif) 1666 { 1667 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1668 /* 1669 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1670 * We assume here that all the packets sent to the OFFCHANNEL 1671 * queue are sent in ROC session. 1672 */ 1673 flush_work(&mvm->roc_done_wk); 1674 } 1675 } 1676 1677 /* This function is doing the common part of removing the interface for 1678 * both - MLD and non-MLD modes. Returns true if removing the interface 1679 * is done 1680 */ 1681 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1682 struct ieee80211_vif *vif) 1683 { 1684 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1685 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1686 struct iwl_probe_resp_data *probe_data; 1687 1688 iwl_mvm_prepare_mac_removal(mvm, vif); 1689 1690 if (!(vif->type == NL80211_IFTYPE_AP || 1691 vif->type == NL80211_IFTYPE_ADHOC)) 1692 iwl_mvm_tcm_rm_vif(mvm, vif); 1693 1694 mutex_lock(&mvm->mutex); 1695 1696 if (vif == mvm->csme_vif) { 1697 iwl_mei_set_netdev(NULL); 1698 mvm->csme_vif = NULL; 1699 } 1700 1701 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1702 lockdep_is_held(&mvm->mutex)); 1703 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1704 if (probe_data) 1705 kfree_rcu(probe_data, rcu_head); 1706 1707 if (mvm->bf_allowed_vif == mvmvif) { 1708 mvm->bf_allowed_vif = NULL; 1709 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1710 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1711 } 1712 1713 if (vif->bss_conf.ftm_responder) 1714 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1715 1716 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1717 1718 /* 1719 * For AP/GO interface, the tear down of the resources allocated to the 1720 * interface is be handled as part of the stop_ap flow. 1721 */ 1722 if (vif->type == NL80211_IFTYPE_AP || 1723 vif->type == NL80211_IFTYPE_ADHOC) { 1724 #ifdef CONFIG_NL80211_TESTMODE 1725 if (vif == mvm->noa_vif) { 1726 mvm->noa_vif = NULL; 1727 mvm->noa_duration = 0; 1728 } 1729 #endif 1730 return true; 1731 } 1732 1733 iwl_mvm_power_update_mac(mvm); 1734 return false; 1735 } 1736 1737 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1738 struct ieee80211_vif *vif) 1739 { 1740 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1741 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1742 1743 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1744 goto out; 1745 1746 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1747 mvm->p2p_device_vif = NULL; 1748 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1749 iwl_mvm_binding_remove_vif(mvm, vif); 1750 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1751 mvmvif->deflink.phy_ctxt = NULL; 1752 } 1753 1754 iwl_mvm_mac_ctxt_remove(mvm, vif); 1755 1756 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1757 1758 if (vif->type == NL80211_IFTYPE_MONITOR) 1759 mvm->monitor_on = false; 1760 1761 out: 1762 if (vif->type == NL80211_IFTYPE_AP || 1763 vif->type == NL80211_IFTYPE_ADHOC) { 1764 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1765 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1766 } 1767 1768 mutex_unlock(&mvm->mutex); 1769 } 1770 1771 struct iwl_mvm_mc_iter_data { 1772 struct iwl_mvm *mvm; 1773 int port_id; 1774 }; 1775 1776 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1777 struct ieee80211_vif *vif) 1778 { 1779 struct iwl_mvm_mc_iter_data *data = _data; 1780 struct iwl_mvm *mvm = data->mvm; 1781 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1782 struct iwl_host_cmd hcmd = { 1783 .id = MCAST_FILTER_CMD, 1784 .flags = CMD_ASYNC, 1785 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1786 }; 1787 int ret, len; 1788 1789 /* if we don't have free ports, mcast frames will be dropped */ 1790 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1791 return; 1792 1793 if (vif->type != NL80211_IFTYPE_STATION || 1794 !vif->cfg.assoc) 1795 return; 1796 1797 cmd->port_id = data->port_id++; 1798 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1799 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1800 1801 hcmd.len[0] = len; 1802 hcmd.data[0] = cmd; 1803 1804 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1805 if (ret) 1806 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1807 } 1808 1809 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1810 { 1811 struct iwl_mvm_mc_iter_data iter_data = { 1812 .mvm = mvm, 1813 }; 1814 int ret; 1815 1816 lockdep_assert_held(&mvm->mutex); 1817 1818 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1819 return; 1820 1821 ieee80211_iterate_active_interfaces_atomic( 1822 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1823 iwl_mvm_mc_iface_iterator, &iter_data); 1824 1825 /* 1826 * Send a (synchronous) ech command so that we wait for the 1827 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1828 * the interface iterator. Otherwise, we might get here over 1829 * and over again (by userspace just sending a lot of these) 1830 * and the CPU can send them faster than the firmware can 1831 * process them. 1832 * Note that the CPU is still faster - but with this we'll 1833 * actually send fewer commands overall because the CPU will 1834 * not schedule the work in mac80211 as frequently if it's 1835 * still running when rescheduled (possibly multiple times). 1836 */ 1837 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1838 if (ret) 1839 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1840 } 1841 1842 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1843 struct netdev_hw_addr_list *mc_list) 1844 { 1845 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1846 struct iwl_mcast_filter_cmd *cmd; 1847 struct netdev_hw_addr *addr; 1848 int addr_count; 1849 bool pass_all; 1850 int len; 1851 1852 addr_count = netdev_hw_addr_list_count(mc_list); 1853 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1854 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1855 if (pass_all) 1856 addr_count = 0; 1857 1858 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1859 cmd = kzalloc(len, GFP_ATOMIC); 1860 if (!cmd) 1861 return 0; 1862 1863 if (pass_all) { 1864 cmd->pass_all = 1; 1865 return (u64)(unsigned long)cmd; 1866 } 1867 1868 netdev_hw_addr_list_for_each(addr, mc_list) { 1869 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1870 cmd->count, addr->addr); 1871 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1872 addr->addr, ETH_ALEN); 1873 cmd->count++; 1874 } 1875 1876 return (u64)(unsigned long)cmd; 1877 } 1878 1879 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1880 unsigned int changed_flags, 1881 unsigned int *total_flags, u64 multicast) 1882 { 1883 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1884 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1885 1886 mutex_lock(&mvm->mutex); 1887 1888 /* replace previous configuration */ 1889 kfree(mvm->mcast_filter_cmd); 1890 mvm->mcast_filter_cmd = cmd; 1891 1892 if (!cmd) 1893 goto out; 1894 1895 if (changed_flags & FIF_ALLMULTI) 1896 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1897 1898 if (cmd->pass_all) 1899 cmd->count = 0; 1900 1901 iwl_mvm_recalc_multicast(mvm); 1902 out: 1903 mutex_unlock(&mvm->mutex); 1904 *total_flags = 0; 1905 } 1906 1907 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1908 struct ieee80211_vif *vif, 1909 unsigned int filter_flags, 1910 unsigned int changed_flags) 1911 { 1912 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1913 1914 /* We support only filter for probe requests */ 1915 if (!(changed_flags & FIF_PROBE_REQ)) 1916 return; 1917 1918 /* Supported only for p2p client interfaces */ 1919 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1920 !vif->p2p) 1921 return; 1922 1923 mutex_lock(&mvm->mutex); 1924 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1925 mutex_unlock(&mvm->mutex); 1926 } 1927 1928 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1929 { 1930 struct iwl_mu_group_mgmt_cmd cmd = {}; 1931 1932 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1933 WLAN_MEMBERSHIP_LEN); 1934 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1935 WLAN_USER_POSITION_LEN); 1936 1937 return iwl_mvm_send_cmd_pdu(mvm, 1938 WIDE_ID(DATA_PATH_GROUP, 1939 UPDATE_MU_GROUPS_CMD), 1940 0, sizeof(cmd), &cmd); 1941 } 1942 1943 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1944 struct ieee80211_vif *vif) 1945 { 1946 if (vif->bss_conf.mu_mimo_owner) { 1947 struct iwl_mu_group_mgmt_notif *notif = _data; 1948 1949 /* 1950 * MU-MIMO Group Id action frame is little endian. We treat 1951 * the data received from firmware as if it came from the 1952 * action frame, so no conversion is needed. 1953 */ 1954 ieee80211_update_mu_groups(vif, 0, 1955 (u8 *)¬if->membership_status, 1956 (u8 *)¬if->user_position); 1957 } 1958 } 1959 1960 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1961 struct iwl_rx_cmd_buffer *rxb) 1962 { 1963 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1964 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1965 1966 ieee80211_iterate_active_interfaces_atomic( 1967 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1968 iwl_mvm_mu_mimo_iface_iterator, notif); 1969 } 1970 1971 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1972 { 1973 u8 byte_num = ppe_pos_bit / 8; 1974 u8 bit_num = ppe_pos_bit % 8; 1975 u8 residue_bits; 1976 u8 res; 1977 1978 if (bit_num <= 5) 1979 return (ppe[byte_num] >> bit_num) & 1980 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1981 1982 /* 1983 * If bit_num > 5, we have to combine bits with next byte. 1984 * Calculate how many bits we need to take from current byte (called 1985 * here "residue_bits"), and add them to bits from next byte. 1986 */ 1987 1988 residue_bits = 8 - bit_num; 1989 1990 res = (ppe[byte_num + 1] & 1991 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1992 residue_bits; 1993 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1994 1995 return res; 1996 } 1997 1998 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1999 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2000 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2001 bool inheritance) 2002 { 2003 int i; 2004 2005 /* 2006 * FW currently supports only nss == MAX_HE_SUPP_NSS 2007 * 2008 * If nss > MAX: we can ignore values we don't support 2009 * If nss < MAX: we can set zeros in other streams 2010 */ 2011 if (nss > MAX_HE_SUPP_NSS) { 2012 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2013 MAX_HE_SUPP_NSS); 2014 nss = MAX_HE_SUPP_NSS; 2015 } 2016 2017 for (i = 0; i < nss; i++) { 2018 u8 ru_index_tmp = ru_index_bitmap << 1; 2019 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2020 u8 bw; 2021 2022 for (bw = 0; 2023 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2024 bw++) { 2025 ru_index_tmp >>= 1; 2026 2027 /* 2028 * According to the 11be spec, if for a specific BW the PPE Thresholds 2029 * isn't present - it should inherit the thresholds from the last 2030 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2031 * this inheritance - continue in this case 2032 */ 2033 if (!(ru_index_tmp & 1)) { 2034 if (inheritance) 2035 goto set_thresholds; 2036 else 2037 continue; 2038 } 2039 2040 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2041 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2042 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2043 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2044 2045 set_thresholds: 2046 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2047 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2048 } 2049 } 2050 } 2051 2052 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2053 struct ieee80211_link_sta *link_sta, 2054 struct iwl_he_pkt_ext_v2 *pkt_ext, 2055 bool inheritance) 2056 { 2057 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2058 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2059 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2060 u8 ru_index_bitmap = 2061 u8_get_bits(*ppe, 2062 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2063 /* Starting after PPE header */ 2064 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2065 2066 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2067 inheritance); 2068 } 2069 2070 static int 2071 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2072 u8 nominal_padding) 2073 { 2074 int low_th = -1; 2075 int high_th = -1; 2076 int i; 2077 2078 /* all the macros are the same for EHT and HE */ 2079 switch (nominal_padding) { 2080 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2081 low_th = IWL_HE_PKT_EXT_NONE; 2082 high_th = IWL_HE_PKT_EXT_NONE; 2083 break; 2084 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2085 low_th = IWL_HE_PKT_EXT_BPSK; 2086 high_th = IWL_HE_PKT_EXT_NONE; 2087 break; 2088 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2089 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2090 low_th = IWL_HE_PKT_EXT_NONE; 2091 high_th = IWL_HE_PKT_EXT_BPSK; 2092 break; 2093 } 2094 2095 if (low_th < 0 || high_th < 0) 2096 return -EINVAL; 2097 2098 /* Set the PPE thresholds accordingly */ 2099 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2100 u8 bw; 2101 2102 for (bw = 0; 2103 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2104 bw++) { 2105 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2106 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2107 } 2108 } 2109 2110 return 0; 2111 } 2112 2113 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2114 u8 nominal_padding) 2115 { 2116 int i; 2117 2118 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2119 u8 bw; 2120 2121 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2122 bw++) { 2123 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2124 2125 if (nominal_padding > 2126 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2127 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2128 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2129 else if (nominal_padding == 2130 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2131 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2132 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2133 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2134 } 2135 } 2136 } 2137 2138 /* Set the pkt_ext field according to PPE Thresholds element */ 2139 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2140 struct ieee80211_link_sta *link_sta, 2141 struct iwl_he_pkt_ext_v2 *pkt_ext) 2142 { 2143 u8 nominal_padding; 2144 int i, ret = 0; 2145 2146 if (WARN_ON(!link_sta)) 2147 return -EINVAL; 2148 2149 /* Initialize the PPE thresholds to "None" (7), as described in Table 2150 * 9-262ac of 80211.ax/D3.0. 2151 */ 2152 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2153 sizeof(struct iwl_he_pkt_ext_v2)); 2154 2155 if (link_sta->eht_cap.has_eht) { 2156 nominal_padding = 2157 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2158 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2159 2160 /* If PPE Thresholds exists, parse them into a FW-familiar 2161 * format. 2162 */ 2163 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2164 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2165 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2166 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2167 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2168 u8 ru_index_bitmap = 2169 u16_get_bits(*ppe, 2170 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2171 /* Starting after PPE header */ 2172 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2173 2174 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2175 ppe, ppe_pos_bit, true); 2176 /* EHT PPE Thresholds doesn't exist - set the API according to 2177 * HE PPE Tresholds 2178 */ 2179 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2180 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2181 /* Even though HE Capabilities IE doesn't contain PPE 2182 * Thresholds for BW 320Mhz, thresholds for this BW will 2183 * be filled in with the same values as 160Mhz, due to 2184 * the inheritance, as required. 2185 */ 2186 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2187 true); 2188 2189 /* According to the requirements, for MCSs 12-13 the 2190 * maximum value between HE PPE Threshold and Common 2191 * Nominal Packet Padding needs to be taken 2192 */ 2193 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2194 2195 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2196 * take the Thresholds from Common Nominal Packet Padding field 2197 */ 2198 } else { 2199 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2200 nominal_padding); 2201 } 2202 } else if (link_sta->he_cap.has_he) { 2203 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2204 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2205 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2206 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2207 false); 2208 /* PPE Thresholds doesn't exist - set the API PPE values 2209 * according to Common Nominal Packet Padding field. 2210 */ 2211 } else { 2212 nominal_padding = 2213 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2214 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2215 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2216 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2217 nominal_padding); 2218 } 2219 } 2220 2221 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2222 int bw; 2223 2224 for (bw = 0; 2225 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2226 bw++) { 2227 u8 *qam_th = 2228 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2229 2230 IWL_DEBUG_HT(mvm, 2231 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2232 i, bw, qam_th[0], qam_th[1]); 2233 } 2234 } 2235 return ret; 2236 } 2237 2238 /* 2239 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2240 * is enabled or not 2241 */ 2242 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2243 const struct iwl_mvm_vif_link_info *link_info, 2244 struct iwl_he_backoff_conf *trig_based_txf) 2245 { 2246 int i; 2247 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2248 bool mu_edca_enabled = true; 2249 2250 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2251 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2252 &link_info->queue_params[i].mu_edca_param_rec; 2253 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2254 2255 if (!link_info->queue_params[i].mu_edca) { 2256 mu_edca_enabled = false; 2257 break; 2258 } 2259 2260 trig_based_txf[ac].cwmin = 2261 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2262 trig_based_txf[ac].cwmax = 2263 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2264 trig_based_txf[ac].aifsn = 2265 cpu_to_le16(mu_edca->aifsn & 0xf); 2266 trig_based_txf[ac].mu_time = 2267 cpu_to_le16(mu_edca->mu_edca_timer); 2268 } 2269 2270 return mu_edca_enabled; 2271 } 2272 2273 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2274 { 2275 const struct ieee80211_supported_band *sband; 2276 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2277 2278 /* This capability is the same for all bands, 2279 * so take it from one of them. 2280 */ 2281 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2282 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2283 2284 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2285 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2286 } 2287 2288 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2289 struct ieee80211_link_sta *link_sta) 2290 { 2291 u8 *mac_cap_info = 2292 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2293 __le32 htc_flags = 0; 2294 2295 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2296 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2297 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2298 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2299 u8 link_adap = 2300 ((mac_cap_info[2] & 2301 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2302 (mac_cap_info[1] & 2303 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2304 2305 if (link_adap == 2) 2306 htc_flags |= 2307 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2308 else if (link_adap == 3) 2309 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2310 } 2311 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2312 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2313 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2314 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2315 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2316 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2317 2318 return htc_flags; 2319 } 2320 2321 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2322 struct ieee80211_vif *vif, u8 sta_id) 2323 { 2324 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2325 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2326 .sta_id = sta_id, 2327 .tid_limit = IWL_MAX_TID_COUNT, 2328 .bss_color = vif->bss_conf.he_bss_color.color, 2329 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2330 .frame_time_rts_th = 2331 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2332 }; 2333 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2334 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2335 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2336 int size; 2337 struct ieee80211_sta *sta; 2338 u32 flags; 2339 int i; 2340 void *cmd; 2341 2342 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2343 ver = 1; 2344 2345 switch (ver) { 2346 case 1: 2347 /* same layout as v2 except some data at the end */ 2348 cmd = &sta_ctxt_cmd_v2; 2349 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2350 break; 2351 case 2: 2352 cmd = &sta_ctxt_cmd_v2; 2353 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2354 break; 2355 case 3: 2356 cmd = &sta_ctxt_cmd; 2357 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2358 break; 2359 default: 2360 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2361 return; 2362 } 2363 2364 rcu_read_lock(); 2365 2366 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2367 if (IS_ERR_OR_NULL(sta)) { 2368 rcu_read_unlock(); 2369 WARN(1, "Can't find STA to configure HE\n"); 2370 return; 2371 } 2372 2373 if (!sta->deflink.he_cap.has_he) { 2374 rcu_read_unlock(); 2375 return; 2376 } 2377 2378 flags = 0; 2379 2380 /* Block 26-tone RU OFDMA transmissions */ 2381 if (mvmvif->deflink.he_ru_2mhz_block) 2382 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2383 2384 /* HTC flags */ 2385 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2386 2387 /* PPE Thresholds */ 2388 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2389 flags |= STA_CTXT_HE_PACKET_EXT; 2390 2391 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2392 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2393 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2394 2395 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2396 IEEE80211_HE_MAC_CAP2_ACK_EN) 2397 flags |= STA_CTXT_HE_ACK_ENABLED; 2398 2399 rcu_read_unlock(); 2400 2401 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2402 &sta_ctxt_cmd.trig_based_txf[0])) 2403 flags |= STA_CTXT_HE_MU_EDCA_CW; 2404 2405 if (vif->bss_conf.uora_exists) { 2406 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2407 2408 sta_ctxt_cmd.rand_alloc_ecwmin = 2409 vif->bss_conf.uora_ocw_range & 0x7; 2410 sta_ctxt_cmd.rand_alloc_ecwmax = 2411 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2412 } 2413 2414 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2415 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2416 2417 if (vif->bss_conf.nontransmitted) { 2418 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2419 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2420 vif->bss_conf.transmitter_bssid); 2421 sta_ctxt_cmd.max_bssid_indicator = 2422 vif->bss_conf.bssid_indicator; 2423 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2424 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2425 sta_ctxt_cmd.profile_periodicity = 2426 vif->bss_conf.profile_periodicity; 2427 } 2428 2429 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2430 2431 if (ver < 3) { 2432 /* fields before pkt_ext */ 2433 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2434 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2435 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2436 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2437 2438 /* pkt_ext */ 2439 for (i = 0; 2440 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2441 i++) { 2442 u8 bw; 2443 2444 for (bw = 0; 2445 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2446 bw++) { 2447 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2448 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2449 2450 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2451 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2452 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2453 } 2454 } 2455 2456 /* fields after pkt_ext */ 2457 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2458 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2459 sizeof(sta_ctxt_cmd_v2) - 2460 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2461 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2462 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2463 (u8 *)&sta_ctxt_cmd + 2464 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2465 sizeof(sta_ctxt_cmd) - 2466 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2467 sta_ctxt_cmd_v2.reserved3 = 0; 2468 } 2469 2470 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2471 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2472 } 2473 2474 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2475 u32 duration_override) 2476 { 2477 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2478 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2479 2480 if (duration_override > duration) 2481 duration = duration_override; 2482 2483 /* Try really hard to protect the session and hear a beacon 2484 * The new session protection command allows us to protect the 2485 * session for a much longer time since the firmware will internally 2486 * create two events: a 300TU one with a very high priority that 2487 * won't be fragmented which should be enough for 99% of the cases, 2488 * and another one (which we configure here to be 900TU long) which 2489 * will have a slightly lower priority, but more importantly, can be 2490 * fragmented so that it'll allow other activities to run. 2491 */ 2492 if (fw_has_capa(&mvm->fw->ucode_capa, 2493 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2494 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2495 min_duration, false); 2496 else 2497 iwl_mvm_protect_session(mvm, vif, duration, 2498 min_duration, 500, false); 2499 } 2500 2501 /* Handle association common part to MLD and non-MLD modes */ 2502 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2503 struct ieee80211_vif *vif, 2504 u64 changes) 2505 { 2506 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2507 int ret; 2508 2509 /* The firmware tracks the MU-MIMO group on its own. 2510 * However, on HW restart we should restore this data. 2511 */ 2512 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2513 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2514 ret = iwl_mvm_update_mu_groups(mvm, vif); 2515 if (ret) 2516 IWL_ERR(mvm, 2517 "failed to update VHT MU_MIMO groups\n"); 2518 } 2519 2520 iwl_mvm_recalc_multicast(mvm); 2521 2522 /* reset rssi values */ 2523 mvmvif->bf_data.ave_beacon_signal = 0; 2524 2525 iwl_mvm_bt_coex_vif_change(mvm); 2526 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2527 IEEE80211_SMPS_AUTOMATIC); 2528 if (fw_has_capa(&mvm->fw->ucode_capa, 2529 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2530 iwl_mvm_config_scan(mvm); 2531 } 2532 2533 /* Execute the common part for MLD and non-MLD modes */ 2534 void 2535 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2536 struct ieee80211_vif *vif, 2537 struct ieee80211_bss_conf *link_conf, 2538 u64 changes) 2539 { 2540 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2541 int ret; 2542 2543 if (changes & BSS_CHANGED_BEACON_INFO) { 2544 /* We received a beacon from the associated AP so 2545 * remove the session protection. 2546 */ 2547 iwl_mvm_stop_session_protection(mvm, vif); 2548 2549 iwl_mvm_sf_update(mvm, vif, false); 2550 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2551 } 2552 2553 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2554 /* Send power command on every beacon change, 2555 * because we may have not enabled beacon abort yet. 2556 */ 2557 BSS_CHANGED_BEACON_INFO)) { 2558 ret = iwl_mvm_power_update_mac(mvm); 2559 if (ret) 2560 IWL_ERR(mvm, "failed to update power mode\n"); 2561 } 2562 2563 if (changes & BSS_CHANGED_CQM) { 2564 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2565 /* reset cqm events tracking */ 2566 mvmvif->bf_data.last_cqm_event = 0; 2567 if (mvmvif->bf_data.bf_enabled) { 2568 /* FIXME: need to update per link when FW API will 2569 * support it 2570 */ 2571 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2572 if (ret) 2573 IWL_ERR(mvm, 2574 "failed to update CQM thresholds\n"); 2575 } 2576 } 2577 2578 if (changes & BSS_CHANGED_BANDWIDTH) 2579 iwl_mvm_update_link_smps(vif, link_conf); 2580 } 2581 2582 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2583 struct ieee80211_vif *vif, 2584 struct ieee80211_bss_conf *bss_conf, 2585 u64 changes) 2586 { 2587 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2588 int ret; 2589 2590 /* 2591 * Re-calculate the tsf id, as the leader-follower relations depend 2592 * on the beacon interval, which was not known when the station 2593 * interface was added. 2594 */ 2595 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2596 if ((vif->bss_conf.he_support && 2597 !iwlwifi_mod_params.disable_11ax) || 2598 (vif->bss_conf.eht_support && 2599 !iwlwifi_mod_params.disable_11be)) 2600 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2601 2602 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2603 } 2604 2605 /* Update MU EDCA params */ 2606 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2607 vif->cfg.assoc && 2608 ((vif->bss_conf.he_support && 2609 !iwlwifi_mod_params.disable_11ax) || 2610 (vif->bss_conf.eht_support && 2611 !iwlwifi_mod_params.disable_11be))) 2612 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2613 2614 /* 2615 * If we're not associated yet, take the (new) BSSID before associating 2616 * so the firmware knows. If we're already associated, then use the old 2617 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2618 * branch for disassociation below. 2619 */ 2620 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2621 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2622 2623 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2624 if (ret) 2625 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2626 2627 /* after sending it once, adopt mac80211 data */ 2628 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2629 mvmvif->associated = vif->cfg.assoc; 2630 2631 if (changes & BSS_CHANGED_ASSOC) { 2632 if (vif->cfg.assoc) { 2633 /* clear statistics to get clean beacon counter */ 2634 iwl_mvm_request_statistics(mvm, true); 2635 memset(&mvmvif->deflink.beacon_stats, 0, 2636 sizeof(mvmvif->deflink.beacon_stats)); 2637 2638 /* add quota for this interface */ 2639 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2640 if (ret) { 2641 IWL_ERR(mvm, "failed to update quotas\n"); 2642 return; 2643 } 2644 2645 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2646 &mvm->status) && 2647 !fw_has_capa(&mvm->fw->ucode_capa, 2648 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2649 /* 2650 * If we're restarting then the firmware will 2651 * obviously have lost synchronisation with 2652 * the AP. It will attempt to synchronise by 2653 * itself, but we can make it more reliable by 2654 * scheduling a session protection time event. 2655 * 2656 * The firmware needs to receive a beacon to 2657 * catch up with synchronisation, use 110% of 2658 * the beacon interval. 2659 * 2660 * Set a large maximum delay to allow for more 2661 * than a single interface. 2662 * 2663 * For new firmware versions, rely on the 2664 * firmware. This is relevant for DCM scenarios 2665 * only anyway. 2666 */ 2667 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2668 iwl_mvm_protect_session(mvm, vif, dur, dur, 2669 5 * dur, false); 2670 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2671 &mvm->status) && 2672 !vif->bss_conf.dtim_period) { 2673 /* 2674 * If we're not restarting and still haven't 2675 * heard a beacon (dtim period unknown) then 2676 * make sure we still have enough minimum time 2677 * remaining in the time event, since the auth 2678 * might actually have taken quite a while 2679 * (especially for SAE) and so the remaining 2680 * time could be small without us having heard 2681 * a beacon yet. 2682 */ 2683 iwl_mvm_protect_assoc(mvm, vif, 0); 2684 } 2685 2686 iwl_mvm_sf_update(mvm, vif, false); 2687 iwl_mvm_power_vif_assoc(mvm, vif); 2688 if (vif->p2p) { 2689 iwl_mvm_update_smps(mvm, vif, 2690 IWL_MVM_SMPS_REQ_PROT, 2691 IEEE80211_SMPS_DYNAMIC, 0); 2692 } 2693 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2694 iwl_mvm_mei_host_disassociated(mvm); 2695 /* 2696 * If update fails - SF might be running in associated 2697 * mode while disassociated - which is forbidden. 2698 */ 2699 ret = iwl_mvm_sf_update(mvm, vif, false); 2700 WARN_ONCE(ret && 2701 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2702 &mvm->status), 2703 "Failed to update SF upon disassociation\n"); 2704 2705 /* 2706 * If we get an assert during the connection (after the 2707 * station has been added, but before the vif is set 2708 * to associated), mac80211 will re-add the station and 2709 * then configure the vif. Since the vif is not 2710 * associated, we would remove the station here and 2711 * this would fail the recovery. 2712 */ 2713 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2714 &mvm->status)) { 2715 /* first remove remaining keys */ 2716 iwl_mvm_sec_key_remove_ap(mvm, vif, 2717 &mvmvif->deflink, 0); 2718 2719 /* 2720 * Remove AP station now that 2721 * the MAC is unassoc 2722 */ 2723 ret = iwl_mvm_rm_sta_id(mvm, vif, 2724 mvmvif->deflink.ap_sta_id); 2725 if (ret) 2726 IWL_ERR(mvm, 2727 "failed to remove AP station\n"); 2728 2729 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2730 } 2731 2732 /* remove quota for this interface */ 2733 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2734 if (ret) 2735 IWL_ERR(mvm, "failed to update quotas\n"); 2736 2737 /* this will take the cleared BSSID from bss_conf */ 2738 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2739 if (ret) 2740 IWL_ERR(mvm, 2741 "failed to update MAC %pM (clear after unassoc)\n", 2742 vif->addr); 2743 } 2744 2745 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2746 } 2747 2748 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2749 changes); 2750 } 2751 2752 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2753 struct ieee80211_vif *vif, 2754 int *ret) 2755 { 2756 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2757 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2758 int i; 2759 2760 lockdep_assert_held(&mvm->mutex); 2761 2762 mvmvif->ap_assoc_sta_count = 0; 2763 2764 /* must be set before quota calculations */ 2765 mvmvif->ap_ibss_active = true; 2766 2767 /* send all the early keys to the device now */ 2768 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2769 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2770 2771 if (!key) 2772 continue; 2773 2774 mvmvif->ap_early_keys[i] = NULL; 2775 2776 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2777 if (*ret) 2778 return true; 2779 } 2780 2781 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2782 iwl_mvm_vif_set_low_latency(mvmvif, true, 2783 LOW_LATENCY_VIF_TYPE); 2784 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2785 } 2786 2787 /* power updated needs to be done before quotas */ 2788 iwl_mvm_power_update_mac(mvm); 2789 2790 return false; 2791 } 2792 2793 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2794 struct ieee80211_vif *vif, 2795 struct ieee80211_bss_conf *link_conf) 2796 { 2797 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2798 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2799 int ret; 2800 2801 mutex_lock(&mvm->mutex); 2802 2803 /* 2804 * Re-calculate the tsf id, as the leader-follower relations depend on 2805 * the beacon interval, which was not known when the AP interface 2806 * was added. 2807 */ 2808 if (vif->type == NL80211_IFTYPE_AP) 2809 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2810 2811 /* For older devices need to send beacon template before adding mac 2812 * context. For the newer, the beacon is a resource that belongs to a 2813 * MAC, so need to send beacon template after adding the mac. 2814 */ 2815 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2816 /* Add the mac context */ 2817 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2818 if (ret) 2819 goto out_unlock; 2820 2821 /* Send the beacon template */ 2822 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2823 if (ret) 2824 goto out_unlock; 2825 } else { 2826 /* Send the beacon template */ 2827 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2828 if (ret) 2829 goto out_unlock; 2830 2831 /* Add the mac context */ 2832 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2833 if (ret) 2834 goto out_unlock; 2835 } 2836 2837 /* Perform the binding */ 2838 ret = iwl_mvm_binding_add_vif(mvm, vif); 2839 if (ret) 2840 goto out_remove; 2841 2842 /* 2843 * This is not very nice, but the simplest: 2844 * For older FWs adding the mcast sta before the bcast station may 2845 * cause assert 0x2b00. 2846 * This is fixed in later FW so make the order of removal depend on 2847 * the TLV 2848 */ 2849 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2850 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2851 if (ret) 2852 goto out_unbind; 2853 /* 2854 * Send the bcast station. At this stage the TBTT and DTIM time 2855 * events are added and applied to the scheduler 2856 */ 2857 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2858 if (ret) { 2859 iwl_mvm_rm_mcast_sta(mvm, vif); 2860 goto out_unbind; 2861 } 2862 } else { 2863 /* 2864 * Send the bcast station. At this stage the TBTT and DTIM time 2865 * events are added and applied to the scheduler 2866 */ 2867 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2868 if (ret) 2869 goto out_unbind; 2870 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2871 if (ret) { 2872 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2873 goto out_unbind; 2874 } 2875 } 2876 2877 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2878 goto out_failed; 2879 2880 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2881 if (ret) 2882 goto out_failed; 2883 2884 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2885 if (vif->p2p && mvm->p2p_device_vif) 2886 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2887 2888 iwl_mvm_bt_coex_vif_change(mvm); 2889 2890 /* we don't support TDLS during DCM */ 2891 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2892 iwl_mvm_teardown_tdls_peers(mvm); 2893 2894 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2895 2896 goto out_unlock; 2897 2898 out_failed: 2899 iwl_mvm_power_update_mac(mvm); 2900 mvmvif->ap_ibss_active = false; 2901 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2902 iwl_mvm_rm_mcast_sta(mvm, vif); 2903 out_unbind: 2904 iwl_mvm_binding_remove_vif(mvm, vif); 2905 out_remove: 2906 iwl_mvm_mac_ctxt_remove(mvm, vif); 2907 out_unlock: 2908 mutex_unlock(&mvm->mutex); 2909 return ret; 2910 } 2911 2912 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2913 struct ieee80211_vif *vif, 2914 struct ieee80211_bss_conf *link_conf) 2915 { 2916 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2917 } 2918 2919 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2920 struct ieee80211_vif *vif) 2921 { 2922 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2923 } 2924 2925 /* Common part for MLD and non-MLD ops */ 2926 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2927 struct ieee80211_vif *vif) 2928 { 2929 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2930 2931 lockdep_assert_held(&mvm->mutex); 2932 2933 iwl_mvm_prepare_mac_removal(mvm, vif); 2934 2935 /* Handle AP stop while in CSA */ 2936 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2937 iwl_mvm_remove_time_event(mvm, mvmvif, 2938 &mvmvif->time_event_data); 2939 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2940 mvmvif->csa_countdown = false; 2941 } 2942 2943 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2944 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2945 mvm->csa_tx_block_bcn_timeout = 0; 2946 } 2947 2948 mvmvif->ap_ibss_active = false; 2949 mvm->ap_last_beacon_gp2 = 0; 2950 2951 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2952 iwl_mvm_vif_set_low_latency(mvmvif, false, 2953 LOW_LATENCY_VIF_TYPE); 2954 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2955 } 2956 2957 iwl_mvm_bt_coex_vif_change(mvm); 2958 } 2959 2960 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2961 struct ieee80211_vif *vif, 2962 struct ieee80211_bss_conf *link_conf) 2963 { 2964 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2965 2966 mutex_lock(&mvm->mutex); 2967 2968 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2969 2970 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2971 if (vif->p2p && mvm->p2p_device_vif) 2972 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2973 2974 iwl_mvm_update_quotas(mvm, false, NULL); 2975 2976 iwl_mvm_ftm_responder_clear(mvm, vif); 2977 2978 /* 2979 * This is not very nice, but the simplest: 2980 * For older FWs removing the mcast sta before the bcast station may 2981 * cause assert 0x2b00. 2982 * This is fixed in later FW (which will stop beaconing when removing 2983 * bcast station). 2984 * So make the order of removal depend on the TLV 2985 */ 2986 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2987 iwl_mvm_rm_mcast_sta(mvm, vif); 2988 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2989 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2990 iwl_mvm_rm_mcast_sta(mvm, vif); 2991 iwl_mvm_binding_remove_vif(mvm, vif); 2992 2993 iwl_mvm_power_update_mac(mvm); 2994 2995 iwl_mvm_mac_ctxt_remove(mvm, vif); 2996 2997 mutex_unlock(&mvm->mutex); 2998 } 2999 3000 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3001 struct ieee80211_vif *vif, 3002 struct ieee80211_bss_conf *link_conf) 3003 { 3004 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3005 } 3006 3007 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3008 struct ieee80211_vif *vif) 3009 { 3010 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3011 } 3012 3013 static void 3014 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3015 struct ieee80211_vif *vif, 3016 struct ieee80211_bss_conf *bss_conf, 3017 u64 changes) 3018 { 3019 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3020 3021 /* Changes will be applied when the AP/IBSS is started */ 3022 if (!mvmvif->ap_ibss_active) 3023 return; 3024 3025 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3026 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3027 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3028 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3029 3030 /* Need to send a new beacon template to the FW */ 3031 if (changes & BSS_CHANGED_BEACON && 3032 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3033 IWL_WARN(mvm, "Failed updating beacon data\n"); 3034 3035 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3036 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3037 3038 if (ret) 3039 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3040 ret); 3041 } 3042 3043 } 3044 3045 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3046 struct ieee80211_vif *vif, 3047 struct ieee80211_bss_conf *bss_conf, 3048 u64 changes) 3049 { 3050 static const struct iwl_mvm_bss_info_changed_ops callbacks = { 3051 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3052 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3053 }; 3054 3055 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3056 changes); 3057 } 3058 3059 void 3060 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3061 struct ieee80211_vif *vif, 3062 struct ieee80211_bss_conf *bss_conf, 3063 const struct iwl_mvm_bss_info_changed_ops *callbacks, 3064 u64 changes) 3065 { 3066 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3067 3068 mutex_lock(&mvm->mutex); 3069 3070 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3071 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3072 3073 switch (vif->type) { 3074 case NL80211_IFTYPE_STATION: 3075 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3076 break; 3077 case NL80211_IFTYPE_AP: 3078 case NL80211_IFTYPE_ADHOC: 3079 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3080 changes); 3081 break; 3082 case NL80211_IFTYPE_MONITOR: 3083 if (changes & BSS_CHANGED_MU_GROUPS) 3084 iwl_mvm_update_mu_groups(mvm, vif); 3085 break; 3086 default: 3087 /* shouldn't happen */ 3088 WARN_ON_ONCE(1); 3089 } 3090 3091 if (changes & BSS_CHANGED_TXPOWER) { 3092 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3093 bss_conf->txpower); 3094 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3095 } 3096 3097 mutex_unlock(&mvm->mutex); 3098 } 3099 3100 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3101 struct ieee80211_scan_request *hw_req) 3102 { 3103 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3104 int ret; 3105 3106 if (hw_req->req.n_channels == 0 || 3107 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3108 return -EINVAL; 3109 3110 mutex_lock(&mvm->mutex); 3111 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3112 mutex_unlock(&mvm->mutex); 3113 3114 return ret; 3115 } 3116 3117 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3118 struct ieee80211_vif *vif) 3119 { 3120 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3121 3122 mutex_lock(&mvm->mutex); 3123 3124 /* Due to a race condition, it's possible that mac80211 asks 3125 * us to stop a hw_scan when it's already stopped. This can 3126 * happen, for instance, if we stopped the scan ourselves, 3127 * called ieee80211_scan_completed() and the userspace called 3128 * cancel scan scan before ieee80211_scan_work() could run. 3129 * To handle that, simply return if the scan is not running. 3130 */ 3131 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3132 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3133 3134 mutex_unlock(&mvm->mutex); 3135 } 3136 3137 void 3138 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3139 struct ieee80211_sta *sta, u16 tids, 3140 int num_frames, 3141 enum ieee80211_frame_release_type reason, 3142 bool more_data) 3143 { 3144 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3145 3146 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3147 3148 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3149 tids, more_data, false); 3150 } 3151 3152 void 3153 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3154 struct ieee80211_sta *sta, u16 tids, 3155 int num_frames, 3156 enum ieee80211_frame_release_type reason, 3157 bool more_data) 3158 { 3159 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3160 3161 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3162 3163 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3164 tids, more_data, true); 3165 } 3166 3167 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3168 enum sta_notify_cmd cmd, 3169 struct ieee80211_sta *sta) 3170 { 3171 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3172 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3173 unsigned long txqs = 0, tids = 0; 3174 int tid; 3175 3176 /* 3177 * If we have TVQM then we get too high queue numbers - luckily 3178 * we really shouldn't get here with that because such hardware 3179 * should have firmware supporting buffer station offload. 3180 */ 3181 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3182 return; 3183 3184 spin_lock_bh(&mvmsta->lock); 3185 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3186 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3187 3188 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3189 continue; 3190 3191 __set_bit(tid_data->txq_id, &txqs); 3192 3193 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3194 continue; 3195 3196 __set_bit(tid, &tids); 3197 } 3198 3199 switch (cmd) { 3200 case STA_NOTIFY_SLEEP: 3201 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3202 ieee80211_sta_set_buffered(sta, tid, true); 3203 3204 if (txqs) 3205 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3206 /* 3207 * The fw updates the STA to be asleep. Tx packets on the Tx 3208 * queues to this station will not be transmitted. The fw will 3209 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3210 */ 3211 break; 3212 case STA_NOTIFY_AWAKE: 3213 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3214 break; 3215 3216 if (txqs) 3217 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3218 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3219 break; 3220 default: 3221 break; 3222 } 3223 spin_unlock_bh(&mvmsta->lock); 3224 } 3225 3226 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3227 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3228 { 3229 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3230 } 3231 3232 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3233 { 3234 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3235 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3236 struct ieee80211_sta *sta; 3237 struct iwl_mvm_sta *mvmsta; 3238 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3239 3240 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3241 return; 3242 3243 rcu_read_lock(); 3244 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3245 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3246 rcu_read_unlock(); 3247 return; 3248 } 3249 3250 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3251 3252 if (!mvmsta->vif || 3253 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3254 rcu_read_unlock(); 3255 return; 3256 } 3257 3258 if (mvmsta->sleeping != sleeping) { 3259 mvmsta->sleeping = sleeping; 3260 __iwl_mvm_mac_sta_notify(mvm->hw, 3261 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3262 sta); 3263 ieee80211_sta_ps_transition(sta, sleeping); 3264 } 3265 3266 if (sleeping) { 3267 switch (notif->type) { 3268 case IWL_MVM_PM_EVENT_AWAKE: 3269 case IWL_MVM_PM_EVENT_ASLEEP: 3270 break; 3271 case IWL_MVM_PM_EVENT_UAPSD: 3272 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3273 break; 3274 case IWL_MVM_PM_EVENT_PS_POLL: 3275 ieee80211_sta_pspoll(sta); 3276 break; 3277 default: 3278 break; 3279 } 3280 } 3281 3282 rcu_read_unlock(); 3283 } 3284 3285 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3286 struct ieee80211_vif *vif, 3287 struct ieee80211_sta *sta) 3288 { 3289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3290 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3291 unsigned int link_id; 3292 3293 /* 3294 * This is called before mac80211 does RCU synchronisation, 3295 * so here we already invalidate our internal RCU-protected 3296 * station pointer. The rest of the code will thus no longer 3297 * be able to find the station this way, and we don't rely 3298 * on further RCU synchronisation after the sta_state() 3299 * callback deleted the station. 3300 * Since there's mvm->mutex here, no need to have RCU lock for 3301 * mvm_sta->link access. 3302 */ 3303 mutex_lock(&mvm->mutex); 3304 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3305 struct iwl_mvm_link_sta *link_sta; 3306 u32 sta_id; 3307 3308 if (!mvm_sta->link[link_id]) 3309 continue; 3310 3311 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3312 lockdep_is_held(&mvm->mutex)); 3313 sta_id = link_sta->sta_id; 3314 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3315 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3316 ERR_PTR(-ENOENT)); 3317 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3318 } 3319 } 3320 mutex_unlock(&mvm->mutex); 3321 } 3322 3323 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3324 const u8 *bssid) 3325 { 3326 int i; 3327 3328 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3329 struct iwl_mvm_tcm_mac *mdata; 3330 3331 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3332 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3333 mdata->opened_rx_ba_sessions = false; 3334 } 3335 3336 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3337 return; 3338 3339 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3340 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3341 return; 3342 } 3343 3344 if (!vif->p2p && 3345 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3346 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3347 return; 3348 } 3349 3350 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3351 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3352 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3353 return; 3354 } 3355 } 3356 3357 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3358 } 3359 3360 static void 3361 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3362 struct ieee80211_vif *vif, u8 *peer_addr, 3363 enum nl80211_tdls_operation action) 3364 { 3365 struct iwl_fw_dbg_trigger_tlv *trig; 3366 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3367 3368 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3369 FW_DBG_TRIGGER_TDLS); 3370 if (!trig) 3371 return; 3372 3373 tdls_trig = (void *)trig->data; 3374 3375 if (!(tdls_trig->action_bitmap & BIT(action))) 3376 return; 3377 3378 if (tdls_trig->peer_mode && 3379 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3380 return; 3381 3382 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3383 "TDLS event occurred, peer %pM, action %d", 3384 peer_addr, action); 3385 } 3386 3387 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3388 bool tolerated; 3389 }; 3390 3391 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3392 struct cfg80211_bss *bss, 3393 void *_data) 3394 { 3395 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3396 const struct cfg80211_bss_ies *ies; 3397 const struct element *elem; 3398 3399 rcu_read_lock(); 3400 ies = rcu_dereference(bss->ies); 3401 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3402 ies->len); 3403 3404 if (!elem || elem->datalen < 10 || 3405 !(elem->data[10] & 3406 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3407 data->tolerated = false; 3408 } 3409 rcu_read_unlock(); 3410 } 3411 3412 static void 3413 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3414 struct ieee80211_vif *vif, 3415 unsigned int link_id, 3416 struct ieee80211_bss_conf *link_conf) 3417 { 3418 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3419 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3420 .tolerated = true, 3421 }; 3422 3423 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3424 !mvmvif->link[link_id])) 3425 return; 3426 3427 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3428 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3429 return; 3430 } 3431 3432 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3433 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3434 &iter_data); 3435 3436 /* 3437 * If there is at least one AP on radar channel that cannot 3438 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3439 */ 3440 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3441 } 3442 3443 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3444 struct ieee80211_vif *vif) 3445 { 3446 struct ieee80211_supported_band *sband; 3447 const struct ieee80211_sta_he_cap *he_cap; 3448 3449 if (vif->type != NL80211_IFTYPE_STATION) 3450 return; 3451 3452 if (!mvm->cca_40mhz_workaround) 3453 return; 3454 3455 /* decrement and check that we reached zero */ 3456 mvm->cca_40mhz_workaround--; 3457 if (mvm->cca_40mhz_workaround) 3458 return; 3459 3460 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3461 3462 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3463 3464 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3465 3466 if (he_cap) { 3467 /* we know that ours is writable */ 3468 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3469 3470 he->he_cap_elem.phy_cap_info[0] |= 3471 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3472 } 3473 } 3474 3475 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3476 struct ieee80211_vif *vif, 3477 struct iwl_mvm_sta *mvm_sta) 3478 { 3479 #if IS_ENABLED(CONFIG_IWLMEI) 3480 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3481 struct iwl_mei_conn_info conn_info = { 3482 .ssid_len = vif->cfg.ssid_len, 3483 }; 3484 3485 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3486 return; 3487 3488 if (!mvm->mei_registered) 3489 return; 3490 3491 /* FIXME: MEI needs to be updated for MLO */ 3492 if (!vif->bss_conf.chandef.chan) 3493 return; 3494 3495 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3496 3497 switch (mvm_sta->pairwise_cipher) { 3498 case WLAN_CIPHER_SUITE_TKIP: 3499 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3500 break; 3501 case WLAN_CIPHER_SUITE_CCMP: 3502 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3503 break; 3504 case WLAN_CIPHER_SUITE_GCMP: 3505 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3506 break; 3507 case WLAN_CIPHER_SUITE_GCMP_256: 3508 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3509 break; 3510 case 0: 3511 /* open profile */ 3512 break; 3513 default: 3514 /* cipher not supported, don't send anything to iwlmei */ 3515 return; 3516 } 3517 3518 switch (mvmvif->rekey_data.akm) { 3519 case WLAN_AKM_SUITE_SAE & 0xff: 3520 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3521 break; 3522 case WLAN_AKM_SUITE_PSK & 0xff: 3523 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3524 break; 3525 case WLAN_AKM_SUITE_8021X & 0xff: 3526 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3527 break; 3528 case 0: 3529 /* open profile */ 3530 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3531 break; 3532 default: 3533 /* auth method / AKM not supported */ 3534 /* TODO: All the FT vesions of these? */ 3535 return; 3536 } 3537 3538 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3539 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3540 3541 /* TODO: add support for collocated AP data */ 3542 iwl_mei_host_associated(&conn_info, NULL); 3543 #endif 3544 } 3545 3546 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3547 struct ieee80211_vif *vif, 3548 bool force_assoc_off) 3549 { 3550 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3551 } 3552 3553 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3554 struct ieee80211_vif *vif, 3555 struct ieee80211_sta *sta, 3556 enum ieee80211_sta_state old_state, 3557 enum ieee80211_sta_state new_state) 3558 { 3559 static const struct iwl_mvm_sta_state_ops callbacks = { 3560 .add_sta = iwl_mvm_add_sta, 3561 .update_sta = iwl_mvm_update_sta, 3562 .rm_sta = iwl_mvm_rm_sta, 3563 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3564 }; 3565 3566 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3567 &callbacks); 3568 } 3569 3570 /* FIXME: temporary making two assumptions in all sta handling functions: 3571 * (1) when setting sta state, the link exists and protected 3572 * (2) if a link is valid in sta then it's valid in vif (can 3573 * use same index in the link array) 3574 */ 3575 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3576 struct ieee80211_vif *vif, 3577 struct ieee80211_sta *sta) 3578 { 3579 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3580 unsigned int link_id; 3581 3582 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3583 struct ieee80211_bss_conf *conf = 3584 link_conf_dereference_check(vif, link_id); 3585 struct ieee80211_link_sta *link_sta = 3586 link_sta_dereference_check(sta, link_id); 3587 3588 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3589 continue; 3590 3591 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3592 mvmvif->link[link_id]->phy_ctxt->channel->band); 3593 } 3594 } 3595 3596 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3597 3598 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3599 struct ieee80211_vif *vif, 3600 struct ieee80211_sta *sta) 3601 { 3602 struct ieee80211_link_sta *link_sta; 3603 unsigned int link_id; 3604 3605 /* Beacon interval check - firmware will crash if the beacon 3606 * interval is less than 16. We can't avoid connecting at all, 3607 * so refuse the station state change, this will cause mac80211 3608 * to abandon attempts to connect to this AP, and eventually 3609 * wpa_s will blocklist the AP... 3610 */ 3611 3612 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3613 struct ieee80211_bss_conf *link_conf = 3614 link_conf_dereference_protected(vif, link_id); 3615 3616 if (!link_conf) 3617 continue; 3618 3619 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3620 IWL_ERR(mvm, 3621 "Beacon interval %d for AP %pM is too small\n", 3622 link_conf->beacon_int, link_sta->addr); 3623 return false; 3624 } 3625 3626 link_conf->he_support = link_sta->he_cap.has_he; 3627 } 3628 3629 return true; 3630 } 3631 3632 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3633 struct ieee80211_vif *vif, 3634 struct ieee80211_sta *sta, 3635 bool is_sta) 3636 { 3637 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3638 struct ieee80211_link_sta *link_sta; 3639 unsigned int link_id; 3640 3641 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3642 struct ieee80211_bss_conf *link_conf = 3643 link_conf_dereference_protected(vif, link_id); 3644 3645 if (!link_conf || !mvmvif->link[link_id]) 3646 continue; 3647 3648 link_conf->he_support = link_sta->he_cap.has_he; 3649 3650 if (is_sta) { 3651 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3652 if (link_sta->he_cap.has_he) 3653 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3654 link_id, 3655 link_conf); 3656 } 3657 } 3658 } 3659 3660 static int 3661 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3662 struct ieee80211_vif *vif, 3663 struct ieee80211_sta *sta, 3664 const struct iwl_mvm_sta_state_ops *callbacks) 3665 { 3666 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3667 struct ieee80211_link_sta *link_sta; 3668 unsigned int i; 3669 int ret; 3670 3671 lockdep_assert_held(&mvm->mutex); 3672 3673 if (vif->type == NL80211_IFTYPE_STATION && 3674 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3675 return -EINVAL; 3676 3677 if (sta->tdls && 3678 (vif->p2p || 3679 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3680 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3681 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3682 return -EBUSY; 3683 } 3684 3685 ret = callbacks->add_sta(mvm, vif, sta); 3686 if (sta->tdls && ret == 0) { 3687 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3688 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3689 NL80211_TDLS_SETUP); 3690 } 3691 3692 for_each_sta_active_link(vif, sta, link_sta, i) 3693 link_sta->agg.max_rc_amsdu_len = 1; 3694 3695 ieee80211_sta_recalc_aggregates(sta); 3696 3697 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3698 mvmvif->ap_sta = sta; 3699 3700 return 0; 3701 } 3702 3703 static int 3704 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3705 struct iwl_mvm *mvm, 3706 struct ieee80211_vif *vif, 3707 struct ieee80211_sta *sta, 3708 const struct iwl_mvm_sta_state_ops *callbacks) 3709 { 3710 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3711 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3712 struct ieee80211_link_sta *link_sta; 3713 unsigned int link_id; 3714 3715 lockdep_assert_held(&mvm->mutex); 3716 3717 if (vif->type == NL80211_IFTYPE_AP) { 3718 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3719 mvmvif->ap_assoc_sta_count++; 3720 callbacks->mac_ctxt_changed(mvm, vif, false); 3721 3722 /* since the below is not for MLD API, it's ok to use 3723 * the default bss_conf 3724 */ 3725 if (!mvm->mld_api_is_used && 3726 ((vif->bss_conf.he_support && 3727 !iwlwifi_mod_params.disable_11ax) || 3728 (vif->bss_conf.eht_support && 3729 !iwlwifi_mod_params.disable_11be))) 3730 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3731 } else if (vif->type == NL80211_IFTYPE_STATION) { 3732 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3733 3734 callbacks->mac_ctxt_changed(mvm, vif, false); 3735 3736 if (!mvm->mld_api_is_used) 3737 goto out; 3738 3739 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3740 struct ieee80211_bss_conf *link_conf = 3741 link_conf_dereference_protected(vif, link_id); 3742 3743 if (WARN_ON(!link_conf)) 3744 return -EINVAL; 3745 if (!mvmvif->link[link_id]) 3746 continue; 3747 3748 iwl_mvm_link_changed(mvm, vif, link_conf, 3749 LINK_CONTEXT_MODIFY_ALL & 3750 ~LINK_CONTEXT_MODIFY_ACTIVE, 3751 true); 3752 } 3753 } 3754 3755 out: 3756 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3757 3758 return callbacks->update_sta(mvm, vif, sta); 3759 } 3760 3761 static int 3762 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3763 struct ieee80211_vif *vif, 3764 struct ieee80211_sta *sta, 3765 const struct iwl_mvm_sta_state_ops *callbacks) 3766 { 3767 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3768 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3769 3770 lockdep_assert_held(&mvm->mutex); 3771 3772 /* we don't support TDLS during DCM */ 3773 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3774 iwl_mvm_teardown_tdls_peers(mvm); 3775 3776 if (sta->tdls) { 3777 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3778 NL80211_TDLS_ENABLE_LINK); 3779 } else { 3780 /* enable beacon filtering */ 3781 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3782 3783 mvmvif->authorized = 1; 3784 3785 callbacks->mac_ctxt_changed(mvm, vif, false); 3786 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3787 } 3788 3789 mvm_sta->authorized = true; 3790 3791 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3792 3793 return 0; 3794 } 3795 3796 static int 3797 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3798 struct ieee80211_vif *vif, 3799 struct ieee80211_sta *sta, 3800 const struct iwl_mvm_sta_state_ops *callbacks) 3801 { 3802 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3803 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3804 3805 lockdep_assert_held(&mvm->mutex); 3806 3807 mvmsta->authorized = false; 3808 3809 /* once we move into assoc state, need to update rate scale to 3810 * disable using wide bandwidth 3811 */ 3812 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3813 3814 if (!sta->tdls) { 3815 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3816 * yet to avoid sending high prio again for a little 3817 * time. 3818 */ 3819 mvmvif->authorized = 0; 3820 3821 /* disable beacon filtering */ 3822 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3823 } 3824 3825 return 0; 3826 } 3827 3828 /* Common part for MLD and non-MLD modes */ 3829 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3830 struct ieee80211_vif *vif, 3831 struct ieee80211_sta *sta, 3832 enum ieee80211_sta_state old_state, 3833 enum ieee80211_sta_state new_state, 3834 const struct iwl_mvm_sta_state_ops *callbacks) 3835 { 3836 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3837 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3838 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3839 struct ieee80211_link_sta *link_sta; 3840 unsigned int link_id; 3841 int ret; 3842 3843 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3844 sta->addr, old_state, new_state); 3845 3846 /* 3847 * If we are in a STA removal flow and in DQA mode: 3848 * 3849 * This is after the sync_rcu part, so the queues have already been 3850 * flushed. No more TXs on their way in mac80211's path, and no more in 3851 * the queues. 3852 * Also, we won't be getting any new TX frames for this station. 3853 * What we might have are deferred TX frames that need to be taken care 3854 * of. 3855 * 3856 * Drop any still-queued deferred-frame before removing the STA, and 3857 * make sure the worker is no longer handling frames for this STA. 3858 */ 3859 if (old_state == IEEE80211_STA_NONE && 3860 new_state == IEEE80211_STA_NOTEXIST) { 3861 flush_work(&mvm->add_stream_wk); 3862 3863 /* 3864 * No need to make sure deferred TX indication is off since the 3865 * worker will already remove it if it was on 3866 */ 3867 3868 /* 3869 * Additionally, reset the 40 MHz capability if we disconnected 3870 * from the AP now. 3871 */ 3872 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3873 3874 /* Also free dup data just in case any assertions below fail */ 3875 kfree(mvm_sta->dup_data); 3876 } 3877 3878 mutex_lock(&mvm->mutex); 3879 3880 /* this would be a mac80211 bug ... but don't crash */ 3881 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3882 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3883 mutex_unlock(&mvm->mutex); 3884 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3885 &mvm->status) ? 0 : -EINVAL; 3886 } 3887 } 3888 3889 /* track whether or not the station is associated */ 3890 mvm_sta->sta_state = new_state; 3891 3892 if (old_state == IEEE80211_STA_NOTEXIST && 3893 new_state == IEEE80211_STA_NONE) { 3894 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3895 callbacks); 3896 if (ret < 0) 3897 goto out_unlock; 3898 } else if (old_state == IEEE80211_STA_NONE && 3899 new_state == IEEE80211_STA_AUTH) { 3900 /* 3901 * EBS may be disabled due to previous failures reported by FW. 3902 * Reset EBS status here assuming environment has been changed. 3903 */ 3904 mvm->last_ebs_successful = true; 3905 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3906 ret = 0; 3907 } else if (old_state == IEEE80211_STA_AUTH && 3908 new_state == IEEE80211_STA_ASSOC) { 3909 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3910 callbacks); 3911 } else if (old_state == IEEE80211_STA_ASSOC && 3912 new_state == IEEE80211_STA_AUTHORIZED) { 3913 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3914 callbacks); 3915 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3916 new_state == IEEE80211_STA_ASSOC) { 3917 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3918 callbacks); 3919 } else if (old_state == IEEE80211_STA_ASSOC && 3920 new_state == IEEE80211_STA_AUTH) { 3921 if (vif->type == NL80211_IFTYPE_AP) { 3922 mvmvif->ap_assoc_sta_count--; 3923 callbacks->mac_ctxt_changed(mvm, vif, false); 3924 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3925 iwl_mvm_stop_session_protection(mvm, vif); 3926 ret = 0; 3927 } else if (old_state == IEEE80211_STA_AUTH && 3928 new_state == IEEE80211_STA_NONE) { 3929 ret = 0; 3930 } else if (old_state == IEEE80211_STA_NONE && 3931 new_state == IEEE80211_STA_NOTEXIST) { 3932 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3933 iwl_mvm_stop_session_protection(mvm, vif); 3934 mvmvif->ap_sta = NULL; 3935 } 3936 ret = callbacks->rm_sta(mvm, vif, sta); 3937 if (sta->tdls) { 3938 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3939 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3940 NL80211_TDLS_DISABLE_LINK); 3941 } 3942 3943 if (unlikely(ret && 3944 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3945 &mvm->status))) 3946 ret = 0; 3947 } else { 3948 ret = -EIO; 3949 } 3950 out_unlock: 3951 mutex_unlock(&mvm->mutex); 3952 3953 if (sta->tdls && ret == 0) { 3954 if (old_state == IEEE80211_STA_NOTEXIST && 3955 new_state == IEEE80211_STA_NONE) 3956 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3957 else if (old_state == IEEE80211_STA_NONE && 3958 new_state == IEEE80211_STA_NOTEXIST) 3959 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3960 } 3961 3962 return ret; 3963 } 3964 3965 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3966 { 3967 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3968 3969 mvm->rts_threshold = value; 3970 3971 return 0; 3972 } 3973 3974 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3975 struct ieee80211_sta *sta, u32 changed) 3976 { 3977 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3978 3979 if (changed & (IEEE80211_RC_BW_CHANGED | 3980 IEEE80211_RC_SUPP_RATES_CHANGED | 3981 IEEE80211_RC_NSS_CHANGED)) 3982 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3983 3984 if (vif->type == NL80211_IFTYPE_STATION && 3985 changed & IEEE80211_RC_NSS_CHANGED) 3986 iwl_mvm_sf_update(mvm, vif, false); 3987 } 3988 3989 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3990 struct ieee80211_vif *vif, 3991 unsigned int link_id, u16 ac, 3992 const struct ieee80211_tx_queue_params *params) 3993 { 3994 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3995 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3996 3997 mvmvif->deflink.queue_params[ac] = *params; 3998 3999 /* 4000 * No need to update right away, we'll get BSS_CHANGED_QOS 4001 * The exception is P2P_DEVICE interface which needs immediate update. 4002 */ 4003 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4004 int ret; 4005 4006 mutex_lock(&mvm->mutex); 4007 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4008 mutex_unlock(&mvm->mutex); 4009 return ret; 4010 } 4011 return 0; 4012 } 4013 4014 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4015 struct ieee80211_vif *vif, 4016 struct ieee80211_prep_tx_info *info) 4017 { 4018 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4019 4020 mutex_lock(&mvm->mutex); 4021 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4022 mutex_unlock(&mvm->mutex); 4023 } 4024 4025 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4026 struct ieee80211_vif *vif, 4027 struct ieee80211_prep_tx_info *info) 4028 { 4029 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4030 4031 /* for successful cases (auth/assoc), don't cancel session protection */ 4032 if (info->success) 4033 return; 4034 4035 mutex_lock(&mvm->mutex); 4036 iwl_mvm_stop_session_protection(mvm, vif); 4037 mutex_unlock(&mvm->mutex); 4038 } 4039 4040 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4041 struct ieee80211_vif *vif, 4042 struct cfg80211_sched_scan_request *req, 4043 struct ieee80211_scan_ies *ies) 4044 { 4045 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4046 4047 int ret; 4048 4049 mutex_lock(&mvm->mutex); 4050 4051 if (!vif->cfg.idle) { 4052 ret = -EBUSY; 4053 goto out; 4054 } 4055 4056 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4057 4058 out: 4059 mutex_unlock(&mvm->mutex); 4060 return ret; 4061 } 4062 4063 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4064 struct ieee80211_vif *vif) 4065 { 4066 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4067 int ret; 4068 4069 mutex_lock(&mvm->mutex); 4070 4071 /* Due to a race condition, it's possible that mac80211 asks 4072 * us to stop a sched_scan when it's already stopped. This 4073 * can happen, for instance, if we stopped the scan ourselves, 4074 * called ieee80211_sched_scan_stopped() and the userspace called 4075 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4076 * could run. To handle this, simply return if the scan is 4077 * not running. 4078 */ 4079 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4080 mutex_unlock(&mvm->mutex); 4081 return 0; 4082 } 4083 4084 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4085 mutex_unlock(&mvm->mutex); 4086 iwl_mvm_wait_for_async_handlers(mvm); 4087 4088 return ret; 4089 } 4090 4091 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4092 enum set_key_cmd cmd, 4093 struct ieee80211_vif *vif, 4094 struct ieee80211_sta *sta, 4095 struct ieee80211_key_conf *key) 4096 { 4097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4098 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4099 struct iwl_mvm_sta *mvmsta = NULL; 4100 struct iwl_mvm_key_pn *ptk_pn = NULL; 4101 int keyidx = key->keyidx; 4102 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4103 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4104 int ret, i; 4105 u8 key_offset; 4106 4107 if (sta) 4108 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4109 4110 switch (key->cipher) { 4111 case WLAN_CIPHER_SUITE_TKIP: 4112 if (!mvm->trans->trans_cfg->gen2) { 4113 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4114 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4115 } else if (vif->type == NL80211_IFTYPE_STATION) { 4116 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4117 } else { 4118 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4119 return -EOPNOTSUPP; 4120 } 4121 break; 4122 case WLAN_CIPHER_SUITE_CCMP: 4123 case WLAN_CIPHER_SUITE_GCMP: 4124 case WLAN_CIPHER_SUITE_GCMP_256: 4125 if (!iwl_mvm_has_new_tx_api(mvm)) 4126 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4127 break; 4128 case WLAN_CIPHER_SUITE_AES_CMAC: 4129 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4130 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4131 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4132 break; 4133 case WLAN_CIPHER_SUITE_WEP40: 4134 case WLAN_CIPHER_SUITE_WEP104: 4135 if (vif->type == NL80211_IFTYPE_STATION) 4136 break; 4137 if (iwl_mvm_has_new_tx_api(mvm)) 4138 return -EOPNOTSUPP; 4139 /* support HW crypto on TX */ 4140 return 0; 4141 default: 4142 return -EOPNOTSUPP; 4143 } 4144 4145 switch (cmd) { 4146 case SET_KEY: 4147 if (vif->type == NL80211_IFTYPE_STATION && 4148 (keyidx == 6 || keyidx == 7)) 4149 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4150 key); 4151 4152 if ((vif->type == NL80211_IFTYPE_ADHOC || 4153 vif->type == NL80211_IFTYPE_AP) && !sta) { 4154 /* 4155 * GTK on AP interface is a TX-only key, return 0; 4156 * on IBSS they're per-station and because we're lazy 4157 * we don't support them for RX, so do the same. 4158 * CMAC/GMAC in AP/IBSS modes must be done in software. 4159 * 4160 * Except, of course, beacon protection - it must be 4161 * offloaded since we just set a beacon template. 4162 */ 4163 if (keyidx < 6 && 4164 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4165 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4166 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4167 ret = -EOPNOTSUPP; 4168 break; 4169 } 4170 4171 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4172 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4173 !iwl_mvm_has_new_tx_api(mvm)) { 4174 key->hw_key_idx = STA_KEY_IDX_INVALID; 4175 ret = 0; 4176 break; 4177 } 4178 4179 if (!mvmvif->ap_ibss_active) { 4180 for (i = 0; 4181 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4182 i++) { 4183 if (!mvmvif->ap_early_keys[i]) { 4184 mvmvif->ap_early_keys[i] = key; 4185 break; 4186 } 4187 } 4188 4189 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4190 ret = -ENOSPC; 4191 else 4192 ret = 0; 4193 4194 break; 4195 } 4196 } 4197 4198 /* During FW restart, in order to restore the state as it was, 4199 * don't try to reprogram keys we previously failed for. 4200 */ 4201 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4202 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4203 IWL_DEBUG_MAC80211(mvm, 4204 "skip invalid idx key programming during restart\n"); 4205 ret = 0; 4206 break; 4207 } 4208 4209 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4210 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4211 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4212 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4213 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4214 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4215 struct ieee80211_key_seq seq; 4216 int tid, q; 4217 4218 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4219 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4220 mvm->trans->num_rx_queues), 4221 GFP_KERNEL); 4222 if (!ptk_pn) { 4223 ret = -ENOMEM; 4224 break; 4225 } 4226 4227 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4228 ieee80211_get_key_rx_seq(key, tid, &seq); 4229 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4230 memcpy(ptk_pn->q[q].pn[tid], 4231 seq.ccmp.pn, 4232 IEEE80211_CCMP_PN_LEN); 4233 } 4234 4235 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4236 } 4237 4238 /* in HW restart reuse the index, otherwise request a new one */ 4239 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4240 key_offset = key->hw_key_idx; 4241 else 4242 key_offset = STA_KEY_IDX_INVALID; 4243 4244 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4245 mvmsta->pairwise_cipher = key->cipher; 4246 4247 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4248 sta ? sta->addr : NULL, key->keyidx); 4249 4250 if (sec_key_ver) 4251 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4252 else 4253 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4254 4255 if (ret) { 4256 IWL_WARN(mvm, "set key failed\n"); 4257 key->hw_key_idx = STA_KEY_IDX_INVALID; 4258 if (ptk_pn) { 4259 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4260 kfree(ptk_pn); 4261 } 4262 /* 4263 * can't add key for RX, but we don't need it 4264 * in the device for TX so still return 0, 4265 * unless we have new TX API where we cannot 4266 * put key material into the TX_CMD 4267 */ 4268 if (iwl_mvm_has_new_tx_api(mvm)) 4269 ret = -EOPNOTSUPP; 4270 else 4271 ret = 0; 4272 } 4273 4274 break; 4275 case DISABLE_KEY: 4276 if (vif->type == NL80211_IFTYPE_STATION && 4277 (keyidx == 6 || keyidx == 7)) 4278 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4279 NULL); 4280 4281 ret = -ENOENT; 4282 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4283 if (mvmvif->ap_early_keys[i] == key) { 4284 mvmvif->ap_early_keys[i] = NULL; 4285 ret = 0; 4286 } 4287 } 4288 4289 /* found in pending list - don't do anything else */ 4290 if (ret == 0) 4291 break; 4292 4293 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4294 ret = 0; 4295 break; 4296 } 4297 4298 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4299 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4300 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4301 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4302 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4303 ptk_pn = rcu_dereference_protected( 4304 mvmsta->ptk_pn[keyidx], 4305 lockdep_is_held(&mvm->mutex)); 4306 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4307 if (ptk_pn) 4308 kfree_rcu(ptk_pn, rcu_head); 4309 } 4310 4311 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4312 if (sec_key_ver) 4313 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4314 else 4315 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4316 break; 4317 default: 4318 ret = -EINVAL; 4319 } 4320 4321 return ret; 4322 } 4323 4324 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4325 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4326 struct ieee80211_key_conf *key) 4327 { 4328 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4329 int ret; 4330 4331 mutex_lock(&mvm->mutex); 4332 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4333 mutex_unlock(&mvm->mutex); 4334 4335 return ret; 4336 } 4337 4338 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4339 struct ieee80211_vif *vif, 4340 struct ieee80211_key_conf *keyconf, 4341 struct ieee80211_sta *sta, 4342 u32 iv32, u16 *phase1key) 4343 { 4344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4345 4346 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4347 return; 4348 4349 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4350 } 4351 4352 4353 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4354 struct iwl_rx_packet *pkt, void *data) 4355 { 4356 struct iwl_mvm *mvm = 4357 container_of(notif_wait, struct iwl_mvm, notif_wait); 4358 struct iwl_hs20_roc_res *resp; 4359 int resp_len = iwl_rx_packet_payload_len(pkt); 4360 struct iwl_mvm_time_event_data *te_data = data; 4361 4362 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4363 return true; 4364 4365 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4366 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4367 return true; 4368 } 4369 4370 resp = (void *)pkt->data; 4371 4372 IWL_DEBUG_TE(mvm, 4373 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4374 resp->status, resp->event_unique_id); 4375 4376 te_data->uid = le32_to_cpu(resp->event_unique_id); 4377 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4378 te_data->uid); 4379 4380 spin_lock_bh(&mvm->time_event_lock); 4381 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4382 spin_unlock_bh(&mvm->time_event_lock); 4383 4384 return true; 4385 } 4386 4387 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4388 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4389 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4390 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4391 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4392 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4393 struct ieee80211_channel *channel, 4394 struct ieee80211_vif *vif, 4395 int duration) 4396 { 4397 int res; 4398 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4399 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4400 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4401 struct iwl_notification_wait wait_time_event; 4402 u32 dtim_interval = vif->bss_conf.dtim_period * 4403 vif->bss_conf.beacon_int; 4404 u32 req_dur, delay; 4405 struct iwl_hs20_roc_req aux_roc_req = { 4406 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4407 .id_and_color = 4408 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4409 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4410 }; 4411 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4412 &aux_roc_req.channel_info); 4413 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4414 4415 /* Set the channel info data */ 4416 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4417 iwl_mvm_phy_band_from_nl80211(channel->band), 4418 IWL_PHY_CHANNEL_MODE20, 4419 0); 4420 4421 /* Set the time and duration */ 4422 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4423 4424 delay = AUX_ROC_MIN_DELAY; 4425 req_dur = MSEC_TO_TU(duration); 4426 4427 /* 4428 * If we are associated we want the delay time to be at least one 4429 * dtim interval so that the FW can wait until after the DTIM and 4430 * then start the time event, this will potentially allow us to 4431 * remain off-channel for the max duration. 4432 * Since we want to use almost a whole dtim interval we would also 4433 * like the delay to be for 2-3 dtim intervals, in case there are 4434 * other time events with higher priority. 4435 */ 4436 if (vif->cfg.assoc) { 4437 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4438 /* We cannot remain off-channel longer than the DTIM interval */ 4439 if (dtim_interval <= req_dur) { 4440 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4441 if (req_dur <= AUX_ROC_MIN_DURATION) 4442 req_dur = dtim_interval - 4443 AUX_ROC_MIN_SAFETY_BUFFER; 4444 } 4445 } 4446 4447 tail->duration = cpu_to_le32(req_dur); 4448 tail->apply_time_max_delay = cpu_to_le32(delay); 4449 4450 IWL_DEBUG_TE(mvm, 4451 "ROC: Requesting to remain on channel %u for %ums\n", 4452 channel->hw_value, req_dur); 4453 IWL_DEBUG_TE(mvm, 4454 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4455 duration, delay, dtim_interval); 4456 4457 /* Set the node address */ 4458 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4459 4460 lockdep_assert_held(&mvm->mutex); 4461 4462 spin_lock_bh(&mvm->time_event_lock); 4463 4464 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4465 spin_unlock_bh(&mvm->time_event_lock); 4466 return -EIO; 4467 } 4468 4469 te_data->vif = vif; 4470 te_data->duration = duration; 4471 te_data->id = HOT_SPOT_CMD; 4472 4473 spin_unlock_bh(&mvm->time_event_lock); 4474 4475 /* 4476 * Use a notification wait, which really just processes the 4477 * command response and doesn't wait for anything, in order 4478 * to be able to process the response and get the UID inside 4479 * the RX path. Using CMD_WANT_SKB doesn't work because it 4480 * stores the buffer and then wakes up this thread, by which 4481 * time another notification (that the time event started) 4482 * might already be processed unsuccessfully. 4483 */ 4484 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4485 time_event_response, 4486 ARRAY_SIZE(time_event_response), 4487 iwl_mvm_rx_aux_roc, te_data); 4488 4489 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4490 &aux_roc_req); 4491 4492 if (res) { 4493 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4494 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4495 goto out_clear_te; 4496 } 4497 4498 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4499 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4500 /* should never fail */ 4501 WARN_ON_ONCE(res); 4502 4503 if (res) { 4504 out_clear_te: 4505 spin_lock_bh(&mvm->time_event_lock); 4506 iwl_mvm_te_clear_data(mvm, te_data); 4507 spin_unlock_bh(&mvm->time_event_lock); 4508 } 4509 4510 return res; 4511 } 4512 4513 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4514 { 4515 int ret = 0; 4516 4517 lockdep_assert_held(&mvm->mutex); 4518 4519 if (!fw_has_capa(&mvm->fw->ucode_capa, 4520 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4521 IWL_ERR(mvm, "hotspot not supported\n"); 4522 return -EINVAL; 4523 } 4524 4525 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4526 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4527 WARN(ret, "Failed to allocate aux station"); 4528 } 4529 4530 return ret; 4531 } 4532 4533 static int iwl_mvm_roc_switch_binding(struct iwl_mvm *mvm, 4534 struct ieee80211_vif *vif, 4535 struct iwl_mvm_phy_ctxt *new_phy_ctxt) 4536 { 4537 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4538 int ret = 0; 4539 4540 lockdep_assert_held(&mvm->mutex); 4541 4542 /* Unbind the P2P_DEVICE from the current PHY context, 4543 * and if the PHY context is not used remove it. 4544 */ 4545 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4546 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4547 return ret; 4548 4549 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4550 4551 /* Bind the P2P_DEVICE to the current PHY Context */ 4552 mvmvif->deflink.phy_ctxt = new_phy_ctxt; 4553 4554 ret = iwl_mvm_binding_add_vif(mvm, vif); 4555 WARN(ret, "Failed binding P2P_DEVICE\n"); 4556 return ret; 4557 } 4558 4559 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4560 struct ieee80211_vif *vif, 4561 struct ieee80211_channel *channel, 4562 int duration, 4563 enum ieee80211_roc_type type) 4564 { 4565 static const struct iwl_mvm_roc_ops ops = { 4566 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4567 .switch_phy_ctxt = iwl_mvm_roc_switch_binding, 4568 }; 4569 4570 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4571 } 4572 4573 /* Execute the common part for MLD and non-MLD modes */ 4574 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4575 struct ieee80211_channel *channel, int duration, 4576 enum ieee80211_roc_type type, 4577 const struct iwl_mvm_roc_ops *ops) 4578 { 4579 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4580 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4581 struct cfg80211_chan_def chandef; 4582 struct iwl_mvm_phy_ctxt *phy_ctxt; 4583 bool band_change_removal; 4584 int ret, i; 4585 u32 lmac_id; 4586 4587 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4588 duration, type); 4589 4590 /* 4591 * Flush the done work, just in case it's still pending, so that 4592 * the work it does can complete and we can accept new frames. 4593 */ 4594 flush_work(&mvm->roc_done_wk); 4595 4596 mutex_lock(&mvm->mutex); 4597 4598 switch (vif->type) { 4599 case NL80211_IFTYPE_STATION: 4600 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4601 4602 /* Use aux roc framework (HS20) */ 4603 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4604 if (!ret) 4605 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4606 vif, duration); 4607 goto out_unlock; 4608 case NL80211_IFTYPE_P2P_DEVICE: 4609 /* handle below */ 4610 break; 4611 default: 4612 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4613 ret = -EINVAL; 4614 goto out_unlock; 4615 } 4616 4617 for (i = 0; i < NUM_PHY_CTX; i++) { 4618 phy_ctxt = &mvm->phy_ctxts[i]; 4619 if (phy_ctxt->ref == 0 || mvmvif->deflink.phy_ctxt == phy_ctxt) 4620 continue; 4621 4622 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4623 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4624 if (ret) 4625 goto out_unlock; 4626 4627 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4628 goto schedule_time_event; 4629 } 4630 } 4631 4632 /* Need to update the PHY context only if the ROC channel changed */ 4633 if (channel == mvmvif->deflink.phy_ctxt->channel) 4634 goto schedule_time_event; 4635 4636 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4637 4638 /* 4639 * Check if the remain-on-channel is on a different band and that 4640 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4641 * so, we'll need to release and then re-configure here, since we 4642 * must not remove a PHY context that's part of a binding. 4643 */ 4644 band_change_removal = 4645 fw_has_capa(&mvm->fw->ucode_capa, 4646 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4647 mvmvif->deflink.phy_ctxt->channel->band != chandef.chan->band; 4648 4649 if (mvmvif->deflink.phy_ctxt->ref == 1 && !band_change_removal) { 4650 /* 4651 * Change the PHY context configuration as it is currently 4652 * referenced only by the P2P Device MAC (and we can modify it) 4653 */ 4654 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->deflink.phy_ctxt, 4655 &chandef, 1, 1); 4656 if (ret) 4657 goto out_unlock; 4658 } else { 4659 /* 4660 * The PHY context is shared with other MACs (or we're trying to 4661 * switch bands), so remove the P2P Device from the binding, 4662 * allocate an new PHY context and create a new binding. 4663 */ 4664 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4665 if (!phy_ctxt) { 4666 ret = -ENOSPC; 4667 goto out_unlock; 4668 } 4669 4670 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4671 1, 1); 4672 if (ret) { 4673 IWL_ERR(mvm, "Failed to change PHY context\n"); 4674 goto out_unlock; 4675 } 4676 4677 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4678 if (ret) 4679 goto out_unlock; 4680 4681 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4682 } 4683 4684 schedule_time_event: 4685 /* Schedule the time events */ 4686 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4687 4688 out_unlock: 4689 mutex_unlock(&mvm->mutex); 4690 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4691 return ret; 4692 } 4693 4694 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4695 struct ieee80211_vif *vif) 4696 { 4697 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4698 4699 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4700 4701 mutex_lock(&mvm->mutex); 4702 iwl_mvm_stop_roc(mvm, vif); 4703 mutex_unlock(&mvm->mutex); 4704 4705 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4706 return 0; 4707 } 4708 4709 struct iwl_mvm_ftm_responder_iter_data { 4710 bool responder; 4711 struct ieee80211_chanctx_conf *ctx; 4712 }; 4713 4714 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4715 struct ieee80211_vif *vif) 4716 { 4717 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4718 4719 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4720 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4721 data->responder = true; 4722 } 4723 4724 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4725 struct ieee80211_chanctx_conf *ctx) 4726 { 4727 struct iwl_mvm_ftm_responder_iter_data data = { 4728 .responder = false, 4729 .ctx = ctx, 4730 }; 4731 4732 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4733 IEEE80211_IFACE_ITER_NORMAL, 4734 iwl_mvm_ftm_responder_chanctx_iter, 4735 &data); 4736 return data.responder; 4737 } 4738 4739 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4740 struct ieee80211_chanctx_conf *ctx) 4741 { 4742 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4743 struct iwl_mvm_phy_ctxt *phy_ctxt; 4744 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4745 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4746 int ret; 4747 4748 lockdep_assert_held(&mvm->mutex); 4749 4750 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4751 4752 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4753 if (!phy_ctxt) { 4754 ret = -ENOSPC; 4755 goto out; 4756 } 4757 4758 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4759 ctx->rx_chains_static, 4760 ctx->rx_chains_dynamic); 4761 if (ret) { 4762 IWL_ERR(mvm, "Failed to add PHY context\n"); 4763 goto out; 4764 } 4765 4766 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4767 *phy_ctxt_id = phy_ctxt->id; 4768 out: 4769 return ret; 4770 } 4771 4772 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4773 struct ieee80211_chanctx_conf *ctx) 4774 { 4775 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4776 int ret; 4777 4778 mutex_lock(&mvm->mutex); 4779 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4780 mutex_unlock(&mvm->mutex); 4781 4782 return ret; 4783 } 4784 4785 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4786 struct ieee80211_chanctx_conf *ctx) 4787 { 4788 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4789 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4790 4791 lockdep_assert_held(&mvm->mutex); 4792 4793 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4794 } 4795 4796 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4797 struct ieee80211_chanctx_conf *ctx) 4798 { 4799 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4800 4801 mutex_lock(&mvm->mutex); 4802 __iwl_mvm_remove_chanctx(mvm, ctx); 4803 mutex_unlock(&mvm->mutex); 4804 } 4805 4806 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4807 struct ieee80211_chanctx_conf *ctx, u32 changed) 4808 { 4809 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4810 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4811 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4812 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4813 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4814 4815 if (WARN_ONCE((phy_ctxt->ref > 1) && 4816 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4817 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4818 IEEE80211_CHANCTX_CHANGE_RADAR | 4819 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4820 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4821 phy_ctxt->ref, changed)) 4822 return; 4823 4824 mutex_lock(&mvm->mutex); 4825 4826 /* we are only changing the min_width, may be a noop */ 4827 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4828 if (phy_ctxt->width == def->width) 4829 goto out_unlock; 4830 4831 /* we are just toggling between 20_NOHT and 20 */ 4832 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4833 def->width <= NL80211_CHAN_WIDTH_20) 4834 goto out_unlock; 4835 } 4836 4837 iwl_mvm_bt_coex_vif_change(mvm); 4838 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4839 ctx->rx_chains_static, 4840 ctx->rx_chains_dynamic); 4841 4842 out_unlock: 4843 mutex_unlock(&mvm->mutex); 4844 } 4845 4846 /* 4847 * This function executes the common part for MLD and non-MLD modes. 4848 * 4849 * Returns true if we're done assigning the chanctx 4850 * (either on failure or success) 4851 */ 4852 static bool 4853 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4854 struct ieee80211_vif *vif, 4855 struct ieee80211_chanctx_conf *ctx, 4856 bool switching_chanctx, int *ret) 4857 { 4858 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4859 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4860 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4861 4862 lockdep_assert_held(&mvm->mutex); 4863 4864 mvmvif->deflink.phy_ctxt = phy_ctxt; 4865 4866 switch (vif->type) { 4867 case NL80211_IFTYPE_AP: 4868 /* only needed if we're switching chanctx (i.e. during CSA) */ 4869 if (switching_chanctx) { 4870 mvmvif->ap_ibss_active = true; 4871 break; 4872 } 4873 fallthrough; 4874 case NL80211_IFTYPE_ADHOC: 4875 /* 4876 * The AP binding flow is handled as part of the start_ap flow 4877 * (in bss_info_changed), similarly for IBSS. 4878 */ 4879 *ret = 0; 4880 return true; 4881 case NL80211_IFTYPE_STATION: 4882 break; 4883 case NL80211_IFTYPE_MONITOR: 4884 /* always disable PS when a monitor interface is active */ 4885 mvmvif->ps_disabled = true; 4886 break; 4887 default: 4888 *ret = -EINVAL; 4889 return true; 4890 } 4891 return false; 4892 } 4893 4894 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4895 struct ieee80211_vif *vif, 4896 struct ieee80211_bss_conf *link_conf, 4897 struct ieee80211_chanctx_conf *ctx, 4898 bool switching_chanctx) 4899 { 4900 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4901 int ret; 4902 4903 if (WARN_ON(!link_conf)) 4904 return -EINVAL; 4905 4906 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4907 switching_chanctx, &ret)) 4908 goto out; 4909 4910 ret = iwl_mvm_binding_add_vif(mvm, vif); 4911 if (ret) 4912 goto out; 4913 4914 /* 4915 * Power state must be updated before quotas, 4916 * otherwise fw will complain. 4917 */ 4918 iwl_mvm_power_update_mac(mvm); 4919 4920 /* Setting the quota at this stage is only required for monitor 4921 * interfaces. For the other types, the bss_info changed flow 4922 * will handle quota settings. 4923 */ 4924 if (vif->type == NL80211_IFTYPE_MONITOR) { 4925 mvmvif->monitor_active = true; 4926 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4927 if (ret) 4928 goto out_remove_binding; 4929 4930 ret = iwl_mvm_add_snif_sta(mvm, vif); 4931 if (ret) 4932 goto out_remove_binding; 4933 4934 } 4935 4936 /* Handle binding during CSA */ 4937 if (vif->type == NL80211_IFTYPE_AP) { 4938 iwl_mvm_update_quotas(mvm, false, NULL); 4939 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4940 } 4941 4942 if (vif->type == NL80211_IFTYPE_STATION) { 4943 if (!switching_chanctx) { 4944 mvmvif->csa_bcn_pending = false; 4945 goto out; 4946 } 4947 4948 mvmvif->csa_bcn_pending = true; 4949 4950 if (!fw_has_capa(&mvm->fw->ucode_capa, 4951 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4952 u32 duration = 3 * vif->bss_conf.beacon_int; 4953 4954 /* Protect the session to make sure we hear the first 4955 * beacon on the new channel. 4956 */ 4957 iwl_mvm_protect_session(mvm, vif, duration, duration, 4958 vif->bss_conf.beacon_int / 2, 4959 true); 4960 } 4961 4962 iwl_mvm_update_quotas(mvm, false, NULL); 4963 } 4964 4965 goto out; 4966 4967 out_remove_binding: 4968 iwl_mvm_binding_remove_vif(mvm, vif); 4969 iwl_mvm_power_update_mac(mvm); 4970 out: 4971 if (ret) 4972 mvmvif->deflink.phy_ctxt = NULL; 4973 return ret; 4974 } 4975 4976 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4977 struct ieee80211_vif *vif, 4978 struct ieee80211_bss_conf *link_conf, 4979 struct ieee80211_chanctx_conf *ctx) 4980 { 4981 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4982 int ret; 4983 4984 mutex_lock(&mvm->mutex); 4985 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 4986 mutex_unlock(&mvm->mutex); 4987 4988 return ret; 4989 } 4990 4991 /* 4992 * This function executes the common part for MLD and non-MLD modes. 4993 * 4994 * Returns if chanctx unassign chanctx is done 4995 * (either on failure or success) 4996 */ 4997 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 4998 struct ieee80211_vif *vif, 4999 bool switching_chanctx) 5000 { 5001 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5002 5003 lockdep_assert_held(&mvm->mutex); 5004 iwl_mvm_remove_time_event(mvm, mvmvif, 5005 &mvmvif->time_event_data); 5006 5007 switch (vif->type) { 5008 case NL80211_IFTYPE_ADHOC: 5009 return true; 5010 case NL80211_IFTYPE_MONITOR: 5011 mvmvif->monitor_active = false; 5012 mvmvif->ps_disabled = false; 5013 break; 5014 case NL80211_IFTYPE_AP: 5015 /* This part is triggered only during CSA */ 5016 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5017 return true; 5018 5019 mvmvif->csa_countdown = false; 5020 5021 /* Set CS bit on all the stations */ 5022 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5023 5024 /* Save blocked iface, the timeout is set on the next beacon */ 5025 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5026 5027 mvmvif->ap_ibss_active = false; 5028 break; 5029 default: 5030 break; 5031 } 5032 return false; 5033 } 5034 5035 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5036 struct ieee80211_vif *vif, 5037 struct ieee80211_bss_conf *link_conf, 5038 struct ieee80211_chanctx_conf *ctx, 5039 bool switching_chanctx) 5040 { 5041 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5042 struct ieee80211_vif *disabled_vif = NULL; 5043 5044 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5045 goto out; 5046 5047 if (vif->type == NL80211_IFTYPE_MONITOR) 5048 iwl_mvm_rm_snif_sta(mvm, vif); 5049 5050 5051 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5052 disabled_vif = vif; 5053 if (!fw_has_capa(&mvm->fw->ucode_capa, 5054 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5055 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5056 } 5057 5058 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5059 iwl_mvm_binding_remove_vif(mvm, vif); 5060 5061 out: 5062 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5063 switching_chanctx) 5064 return; 5065 mvmvif->deflink.phy_ctxt = NULL; 5066 iwl_mvm_power_update_mac(mvm); 5067 } 5068 5069 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5070 struct ieee80211_vif *vif, 5071 struct ieee80211_bss_conf *link_conf, 5072 struct ieee80211_chanctx_conf *ctx) 5073 { 5074 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5075 5076 mutex_lock(&mvm->mutex); 5077 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5078 mutex_unlock(&mvm->mutex); 5079 } 5080 5081 static int 5082 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5083 struct ieee80211_vif_chanctx_switch *vifs, 5084 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5085 { 5086 int ret; 5087 5088 mutex_lock(&mvm->mutex); 5089 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5090 vifs[0].old_ctx, true); 5091 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5092 5093 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5094 if (ret) { 5095 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5096 goto out_reassign; 5097 } 5098 5099 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5100 vifs[0].new_ctx, true); 5101 if (ret) { 5102 IWL_ERR(mvm, 5103 "failed to assign new_ctx during channel switch\n"); 5104 goto out_remove; 5105 } 5106 5107 /* we don't support TDLS during DCM - can be caused by channel switch */ 5108 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5109 iwl_mvm_teardown_tdls_peers(mvm); 5110 5111 goto out; 5112 5113 out_remove: 5114 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5115 5116 out_reassign: 5117 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5118 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5119 goto out_restart; 5120 } 5121 5122 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5123 vifs[0].old_ctx, true)) { 5124 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5125 goto out_restart; 5126 } 5127 5128 goto out; 5129 5130 out_restart: 5131 /* things keep failing, better restart the hw */ 5132 iwl_mvm_nic_restart(mvm, false); 5133 5134 out: 5135 mutex_unlock(&mvm->mutex); 5136 5137 return ret; 5138 } 5139 5140 static int 5141 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5142 struct ieee80211_vif_chanctx_switch *vifs, 5143 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5144 { 5145 int ret; 5146 5147 mutex_lock(&mvm->mutex); 5148 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5149 vifs[0].old_ctx, true); 5150 5151 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5152 vifs[0].new_ctx, true); 5153 if (ret) { 5154 IWL_ERR(mvm, 5155 "failed to assign new_ctx during channel switch\n"); 5156 goto out_reassign; 5157 } 5158 5159 goto out; 5160 5161 out_reassign: 5162 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5163 vifs[0].old_ctx, true)) { 5164 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5165 goto out_restart; 5166 } 5167 5168 goto out; 5169 5170 out_restart: 5171 /* things keep failing, better restart the hw */ 5172 iwl_mvm_nic_restart(mvm, false); 5173 5174 out: 5175 mutex_unlock(&mvm->mutex); 5176 5177 return ret; 5178 } 5179 5180 /* Execute the common part for both MLD and non-MLD modes */ 5181 int 5182 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5183 struct ieee80211_vif_chanctx_switch *vifs, 5184 int n_vifs, 5185 enum ieee80211_chanctx_switch_mode mode, 5186 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5187 { 5188 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5189 int ret; 5190 5191 /* we only support a single-vif right now */ 5192 if (n_vifs > 1) 5193 return -EOPNOTSUPP; 5194 5195 switch (mode) { 5196 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5197 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5198 break; 5199 case CHANCTX_SWMODE_REASSIGN_VIF: 5200 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5201 break; 5202 default: 5203 ret = -EOPNOTSUPP; 5204 break; 5205 } 5206 5207 return ret; 5208 } 5209 5210 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5211 struct ieee80211_vif_chanctx_switch *vifs, 5212 int n_vifs, 5213 enum ieee80211_chanctx_switch_mode mode) 5214 { 5215 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5216 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5217 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5218 }; 5219 5220 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5221 } 5222 5223 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5224 { 5225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5226 5227 return mvm->ibss_manager; 5228 } 5229 5230 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5231 bool set) 5232 { 5233 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5234 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5235 5236 if (!mvm_sta || !mvm_sta->vif) { 5237 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5238 return -EINVAL; 5239 } 5240 5241 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5242 &mvm_sta->vif->bss_conf); 5243 } 5244 5245 #ifdef CONFIG_NL80211_TESTMODE 5246 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5247 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5248 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5249 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5250 }; 5251 5252 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5253 struct ieee80211_vif *vif, 5254 void *data, int len) 5255 { 5256 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5257 int err; 5258 u32 noa_duration; 5259 5260 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5261 iwl_mvm_tm_policy, NULL); 5262 if (err) 5263 return err; 5264 5265 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5266 return -EINVAL; 5267 5268 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5269 case IWL_MVM_TM_CMD_SET_NOA: 5270 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5271 !vif->bss_conf.enable_beacon || 5272 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5273 return -EINVAL; 5274 5275 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5276 if (noa_duration >= vif->bss_conf.beacon_int) 5277 return -EINVAL; 5278 5279 mvm->noa_duration = noa_duration; 5280 mvm->noa_vif = vif; 5281 5282 return iwl_mvm_update_quotas(mvm, true, NULL); 5283 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5284 /* must be associated client vif - ignore authorized */ 5285 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5286 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5287 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5288 return -EINVAL; 5289 5290 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5291 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5292 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5293 } 5294 5295 return -EOPNOTSUPP; 5296 } 5297 5298 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5299 struct ieee80211_vif *vif, 5300 void *data, int len) 5301 { 5302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5303 int err; 5304 5305 mutex_lock(&mvm->mutex); 5306 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5307 mutex_unlock(&mvm->mutex); 5308 5309 return err; 5310 } 5311 #endif 5312 5313 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5314 struct ieee80211_channel_switch *chsw) 5315 { 5316 /* By implementing this operation, we prevent mac80211 from 5317 * starting its own channel switch timer, so that we can call 5318 * ieee80211_chswitch_done() ourselves at the right time 5319 * (which is when the absence time event starts). 5320 */ 5321 5322 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5323 "dummy channel switch op\n"); 5324 } 5325 5326 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5327 struct ieee80211_vif *vif, 5328 struct ieee80211_channel_switch *chsw) 5329 { 5330 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5331 struct iwl_chan_switch_te_cmd cmd = { 5332 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5333 mvmvif->color)), 5334 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5335 .tsf = cpu_to_le32(chsw->timestamp), 5336 .cs_count = chsw->count, 5337 .cs_mode = chsw->block_tx, 5338 }; 5339 5340 lockdep_assert_held(&mvm->mutex); 5341 5342 if (chsw->delay) 5343 cmd.cs_delayed_bcn_count = 5344 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5345 5346 return iwl_mvm_send_cmd_pdu(mvm, 5347 WIDE_ID(MAC_CONF_GROUP, 5348 CHANNEL_SWITCH_TIME_EVENT_CMD), 5349 0, sizeof(cmd), &cmd); 5350 } 5351 5352 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5353 struct ieee80211_vif *vif, 5354 struct ieee80211_channel_switch *chsw) 5355 { 5356 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5357 u32 apply_time; 5358 5359 /* Schedule the time event to a bit before beacon 1, 5360 * to make sure we're in the new channel when the 5361 * GO/AP arrives. In case count <= 1 immediately schedule the 5362 * TE (this might result with some packet loss or connection 5363 * loss). 5364 */ 5365 if (chsw->count <= 1) 5366 apply_time = 0; 5367 else 5368 apply_time = chsw->device_timestamp + 5369 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5370 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5371 5372 if (chsw->block_tx) 5373 iwl_mvm_csa_client_absent(mvm, vif); 5374 5375 if (mvmvif->bf_data.bf_enabled) { 5376 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5377 5378 if (ret) 5379 return ret; 5380 } 5381 5382 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5383 apply_time); 5384 5385 return 0; 5386 } 5387 5388 #define IWL_MAX_CSA_BLOCK_TX 1500 5389 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5390 struct ieee80211_vif *vif, 5391 struct ieee80211_channel_switch *chsw) 5392 { 5393 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5394 struct ieee80211_vif *csa_vif; 5395 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5396 int ret; 5397 5398 mutex_lock(&mvm->mutex); 5399 5400 mvmvif->csa_failed = false; 5401 5402 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5403 chsw->chandef.center_freq1); 5404 5405 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5406 ieee80211_vif_to_wdev(vif), 5407 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5408 5409 switch (vif->type) { 5410 case NL80211_IFTYPE_AP: 5411 csa_vif = 5412 rcu_dereference_protected(mvm->csa_vif, 5413 lockdep_is_held(&mvm->mutex)); 5414 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5415 "Another CSA is already in progress")) { 5416 ret = -EBUSY; 5417 goto out_unlock; 5418 } 5419 5420 /* we still didn't unblock tx. prevent new CS meanwhile */ 5421 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5422 lockdep_is_held(&mvm->mutex))) { 5423 ret = -EBUSY; 5424 goto out_unlock; 5425 } 5426 5427 rcu_assign_pointer(mvm->csa_vif, vif); 5428 5429 if (WARN_ONCE(mvmvif->csa_countdown, 5430 "Previous CSA countdown didn't complete")) { 5431 ret = -EBUSY; 5432 goto out_unlock; 5433 } 5434 5435 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5436 5437 break; 5438 case NL80211_IFTYPE_STATION: 5439 /* 5440 * In the new flow FW is in charge of timing the switch so there 5441 * is no need for all of this 5442 */ 5443 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5444 CHANNEL_SWITCH_ERROR_NOTIF, 5445 0)) 5446 break; 5447 5448 /* 5449 * We haven't configured the firmware to be associated yet since 5450 * we don't know the dtim period. In this case, the firmware can't 5451 * track the beacons. 5452 */ 5453 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5454 ret = -EBUSY; 5455 goto out_unlock; 5456 } 5457 5458 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5459 schedule_delayed_work(&mvmvif->csa_work, 0); 5460 5461 if (chsw->block_tx) { 5462 /* 5463 * In case of undetermined / long time with immediate 5464 * quiet monitor status to gracefully disconnect 5465 */ 5466 if (!chsw->count || 5467 chsw->count * vif->bss_conf.beacon_int > 5468 IWL_MAX_CSA_BLOCK_TX) 5469 schedule_delayed_work(&mvmvif->csa_work, 5470 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5471 } 5472 5473 if (!fw_has_capa(&mvm->fw->ucode_capa, 5474 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5475 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5476 if (ret) 5477 goto out_unlock; 5478 } else { 5479 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5480 } 5481 5482 mvmvif->csa_count = chsw->count; 5483 mvmvif->csa_misbehave = false; 5484 break; 5485 default: 5486 break; 5487 } 5488 5489 mvmvif->ps_disabled = true; 5490 5491 ret = iwl_mvm_power_update_ps(mvm); 5492 if (ret) 5493 goto out_unlock; 5494 5495 /* we won't be on this channel any longer */ 5496 iwl_mvm_teardown_tdls_peers(mvm); 5497 5498 out_unlock: 5499 mutex_unlock(&mvm->mutex); 5500 5501 return ret; 5502 } 5503 5504 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5505 struct ieee80211_vif *vif, 5506 struct ieee80211_channel_switch *chsw) 5507 { 5508 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5509 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5510 struct iwl_chan_switch_te_cmd cmd = { 5511 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5512 mvmvif->color)), 5513 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5514 .tsf = cpu_to_le32(chsw->timestamp), 5515 .cs_count = chsw->count, 5516 .cs_mode = chsw->block_tx, 5517 }; 5518 5519 /* 5520 * In the new flow FW is in charge of timing the switch so there is no 5521 * need for all of this 5522 */ 5523 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5524 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5525 return; 5526 5527 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5528 return; 5529 5530 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5531 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5532 5533 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5534 if (mvmvif->csa_misbehave) { 5535 /* Second time, give up on this AP*/ 5536 iwl_mvm_abort_channel_switch(hw, vif); 5537 ieee80211_chswitch_done(vif, false); 5538 mvmvif->csa_misbehave = false; 5539 return; 5540 } 5541 mvmvif->csa_misbehave = true; 5542 } 5543 mvmvif->csa_count = chsw->count; 5544 5545 mutex_lock(&mvm->mutex); 5546 if (mvmvif->csa_failed) 5547 goto out_unlock; 5548 5549 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5550 WIDE_ID(MAC_CONF_GROUP, 5551 CHANNEL_SWITCH_TIME_EVENT_CMD), 5552 0, sizeof(cmd), &cmd)); 5553 out_unlock: 5554 mutex_unlock(&mvm->mutex); 5555 } 5556 5557 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5558 { 5559 int i; 5560 5561 if (!iwl_mvm_has_new_tx_api(mvm)) { 5562 if (drop) { 5563 mutex_lock(&mvm->mutex); 5564 iwl_mvm_flush_tx_path(mvm, 5565 iwl_mvm_flushable_queues(mvm) & queues); 5566 mutex_unlock(&mvm->mutex); 5567 } else { 5568 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5569 } 5570 return; 5571 } 5572 5573 mutex_lock(&mvm->mutex); 5574 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5575 struct ieee80211_sta *sta; 5576 5577 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5578 lockdep_is_held(&mvm->mutex)); 5579 if (IS_ERR_OR_NULL(sta)) 5580 continue; 5581 5582 if (drop) 5583 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5584 else 5585 iwl_mvm_wait_sta_queues_empty(mvm, 5586 iwl_mvm_sta_from_mac80211(sta)); 5587 } 5588 mutex_unlock(&mvm->mutex); 5589 } 5590 5591 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5592 u32 queues, bool drop) 5593 { 5594 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5595 struct iwl_mvm_vif *mvmvif; 5596 struct iwl_mvm_sta *mvmsta; 5597 struct ieee80211_sta *sta; 5598 bool ap_sta_done = false; 5599 int i; 5600 u32 msk = 0; 5601 5602 if (!vif) { 5603 iwl_mvm_flush_no_vif(mvm, queues, drop); 5604 return; 5605 } 5606 5607 if (vif->type != NL80211_IFTYPE_STATION) 5608 return; 5609 5610 /* Make sure we're done with the deferred traffic before flushing */ 5611 flush_work(&mvm->add_stream_wk); 5612 5613 mutex_lock(&mvm->mutex); 5614 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5615 5616 /* flush the AP-station and all TDLS peers */ 5617 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5618 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5619 lockdep_is_held(&mvm->mutex)); 5620 if (IS_ERR_OR_NULL(sta)) 5621 continue; 5622 5623 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5624 if (mvmsta->vif != vif) 5625 continue; 5626 5627 if (sta == mvmvif->ap_sta) { 5628 if (ap_sta_done) 5629 continue; 5630 ap_sta_done = true; 5631 } 5632 5633 /* make sure only TDLS peers or the AP are flushed */ 5634 WARN_ON_ONCE(sta != mvmvif->ap_sta && !sta->tdls); 5635 5636 if (drop) { 5637 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5638 IWL_ERR(mvm, "flush request fail\n"); 5639 } else { 5640 if (iwl_mvm_has_new_tx_api(mvm)) 5641 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5642 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5643 msk |= mvmsta->tfd_queue_msk; 5644 } 5645 } 5646 5647 mutex_unlock(&mvm->mutex); 5648 5649 /* this can take a while, and we may need/want other operations 5650 * to succeed while doing this, so do it without the mutex held 5651 */ 5652 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5653 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5654 } 5655 5656 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5657 struct ieee80211_sta *sta) 5658 { 5659 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5660 int i; 5661 5662 mutex_lock(&mvm->mutex); 5663 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5664 struct iwl_mvm_sta *mvmsta; 5665 struct ieee80211_sta *tmp; 5666 5667 tmp = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5668 lockdep_is_held(&mvm->mutex)); 5669 if (tmp != sta) 5670 continue; 5671 5672 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5673 5674 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5675 IWL_ERR(mvm, "flush request fail\n"); 5676 } 5677 mutex_unlock(&mvm->mutex); 5678 } 5679 5680 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5681 struct survey_info *survey) 5682 { 5683 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5684 int ret; 5685 5686 memset(survey, 0, sizeof(*survey)); 5687 5688 /* only support global statistics right now */ 5689 if (idx != 0) 5690 return -ENOENT; 5691 5692 if (!fw_has_capa(&mvm->fw->ucode_capa, 5693 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5694 return -ENOENT; 5695 5696 mutex_lock(&mvm->mutex); 5697 5698 if (iwl_mvm_firmware_running(mvm)) { 5699 ret = iwl_mvm_request_statistics(mvm, false); 5700 if (ret) 5701 goto out; 5702 } 5703 5704 survey->filled = SURVEY_INFO_TIME | 5705 SURVEY_INFO_TIME_RX | 5706 SURVEY_INFO_TIME_TX | 5707 SURVEY_INFO_TIME_SCAN; 5708 survey->time = mvm->accu_radio_stats.on_time_rf + 5709 mvm->radio_stats.on_time_rf; 5710 do_div(survey->time, USEC_PER_MSEC); 5711 5712 survey->time_rx = mvm->accu_radio_stats.rx_time + 5713 mvm->radio_stats.rx_time; 5714 do_div(survey->time_rx, USEC_PER_MSEC); 5715 5716 survey->time_tx = mvm->accu_radio_stats.tx_time + 5717 mvm->radio_stats.tx_time; 5718 do_div(survey->time_tx, USEC_PER_MSEC); 5719 5720 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5721 mvm->radio_stats.on_time_scan; 5722 do_div(survey->time_scan, USEC_PER_MSEC); 5723 5724 ret = 0; 5725 out: 5726 mutex_unlock(&mvm->mutex); 5727 return ret; 5728 } 5729 5730 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5731 { 5732 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5733 u32 gi_ltf; 5734 5735 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5736 case RATE_MCS_CHAN_WIDTH_20: 5737 rinfo->bw = RATE_INFO_BW_20; 5738 break; 5739 case RATE_MCS_CHAN_WIDTH_40: 5740 rinfo->bw = RATE_INFO_BW_40; 5741 break; 5742 case RATE_MCS_CHAN_WIDTH_80: 5743 rinfo->bw = RATE_INFO_BW_80; 5744 break; 5745 case RATE_MCS_CHAN_WIDTH_160: 5746 rinfo->bw = RATE_INFO_BW_160; 5747 break; 5748 case RATE_MCS_CHAN_WIDTH_320: 5749 rinfo->bw = RATE_INFO_BW_320; 5750 break; 5751 } 5752 5753 if (format == RATE_MCS_CCK_MSK || 5754 format == RATE_MCS_LEGACY_OFDM_MSK) { 5755 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5756 5757 /* add the offset needed to get to the legacy ofdm indices */ 5758 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5759 rate += IWL_FIRST_OFDM_RATE; 5760 5761 switch (rate) { 5762 case IWL_RATE_1M_INDEX: 5763 rinfo->legacy = 10; 5764 break; 5765 case IWL_RATE_2M_INDEX: 5766 rinfo->legacy = 20; 5767 break; 5768 case IWL_RATE_5M_INDEX: 5769 rinfo->legacy = 55; 5770 break; 5771 case IWL_RATE_11M_INDEX: 5772 rinfo->legacy = 110; 5773 break; 5774 case IWL_RATE_6M_INDEX: 5775 rinfo->legacy = 60; 5776 break; 5777 case IWL_RATE_9M_INDEX: 5778 rinfo->legacy = 90; 5779 break; 5780 case IWL_RATE_12M_INDEX: 5781 rinfo->legacy = 120; 5782 break; 5783 case IWL_RATE_18M_INDEX: 5784 rinfo->legacy = 180; 5785 break; 5786 case IWL_RATE_24M_INDEX: 5787 rinfo->legacy = 240; 5788 break; 5789 case IWL_RATE_36M_INDEX: 5790 rinfo->legacy = 360; 5791 break; 5792 case IWL_RATE_48M_INDEX: 5793 rinfo->legacy = 480; 5794 break; 5795 case IWL_RATE_54M_INDEX: 5796 rinfo->legacy = 540; 5797 } 5798 return; 5799 } 5800 5801 rinfo->nss = u32_get_bits(rate_n_flags, 5802 RATE_MCS_NSS_MSK) + 1; 5803 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5804 RATE_HT_MCS_INDEX(rate_n_flags) : 5805 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5806 5807 if (rate_n_flags & RATE_MCS_SGI_MSK) 5808 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5809 5810 switch (format) { 5811 case RATE_MCS_EHT_MSK: 5812 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5813 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5814 break; 5815 case RATE_MCS_HE_MSK: 5816 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5817 5818 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5819 5820 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5821 rinfo->bw = RATE_INFO_BW_HE_RU; 5822 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5823 } 5824 5825 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5826 case RATE_MCS_HE_TYPE_SU: 5827 case RATE_MCS_HE_TYPE_EXT_SU: 5828 if (gi_ltf == 0 || gi_ltf == 1) 5829 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5830 else if (gi_ltf == 2) 5831 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5832 else if (gi_ltf == 3) 5833 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5834 else 5835 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5836 break; 5837 case RATE_MCS_HE_TYPE_MU: 5838 if (gi_ltf == 0 || gi_ltf == 1) 5839 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5840 else if (gi_ltf == 2) 5841 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5842 else 5843 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5844 break; 5845 case RATE_MCS_HE_TYPE_TRIG: 5846 if (gi_ltf == 0 || gi_ltf == 1) 5847 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5848 else 5849 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5850 break; 5851 } 5852 5853 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5854 rinfo->he_dcm = 1; 5855 break; 5856 case RATE_MCS_HT_MSK: 5857 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5858 break; 5859 case RATE_MCS_VHT_MSK: 5860 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5861 break; 5862 } 5863 } 5864 5865 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5866 struct ieee80211_vif *vif, 5867 struct ieee80211_sta *sta, 5868 struct station_info *sinfo) 5869 { 5870 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5871 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5872 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5873 5874 if (mvmsta->deflink.avg_energy) { 5875 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5876 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5877 } 5878 5879 if (iwl_mvm_has_tlc_offload(mvm)) { 5880 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5881 5882 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5883 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5884 } 5885 5886 /* if beacon filtering isn't on mac80211 does it anyway */ 5887 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5888 return; 5889 5890 if (!vif->cfg.assoc) 5891 return; 5892 5893 mutex_lock(&mvm->mutex); 5894 5895 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5896 goto unlock; 5897 5898 if (iwl_mvm_request_statistics(mvm, false)) 5899 goto unlock; 5900 5901 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5902 mvmvif->deflink.beacon_stats.accu_num_beacons; 5903 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5904 if (mvmvif->deflink.beacon_stats.avg_signal) { 5905 /* firmware only reports a value after RXing a few beacons */ 5906 sinfo->rx_beacon_signal_avg = 5907 mvmvif->deflink.beacon_stats.avg_signal; 5908 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5909 } 5910 unlock: 5911 mutex_unlock(&mvm->mutex); 5912 } 5913 5914 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5915 struct ieee80211_vif *vif, 5916 const struct ieee80211_mlme_event *mlme) 5917 { 5918 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5919 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5920 iwl_dbg_tlv_time_point(&mvm->fwrt, 5921 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5922 NULL); 5923 return; 5924 } 5925 5926 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5927 iwl_dbg_tlv_time_point(&mvm->fwrt, 5928 IWL_FW_INI_TIME_POINT_DEASSOC, 5929 NULL); 5930 return; 5931 } 5932 } 5933 5934 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5935 struct ieee80211_vif *vif, 5936 const struct ieee80211_event *event) 5937 { 5938 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5939 do { \ 5940 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5941 break; \ 5942 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5943 } while (0) 5944 5945 struct iwl_fw_dbg_trigger_tlv *trig; 5946 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5947 5948 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5949 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5950 return; 5951 } 5952 5953 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5954 FW_DBG_TRIGGER_MLME); 5955 if (!trig) 5956 return; 5957 5958 trig_mlme = (void *)trig->data; 5959 5960 if (event->u.mlme.data == ASSOC_EVENT) { 5961 if (event->u.mlme.status == MLME_DENIED) 5962 CHECK_MLME_TRIGGER(stop_assoc_denied, 5963 "DENIED ASSOC: reason %d", 5964 event->u.mlme.reason); 5965 else if (event->u.mlme.status == MLME_TIMEOUT) 5966 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5967 "ASSOC TIMEOUT"); 5968 } else if (event->u.mlme.data == AUTH_EVENT) { 5969 if (event->u.mlme.status == MLME_DENIED) 5970 CHECK_MLME_TRIGGER(stop_auth_denied, 5971 "DENIED AUTH: reason %d", 5972 event->u.mlme.reason); 5973 else if (event->u.mlme.status == MLME_TIMEOUT) 5974 CHECK_MLME_TRIGGER(stop_auth_timeout, 5975 "AUTH TIMEOUT"); 5976 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5977 CHECK_MLME_TRIGGER(stop_rx_deauth, 5978 "DEAUTH RX %d", event->u.mlme.reason); 5979 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5980 CHECK_MLME_TRIGGER(stop_tx_deauth, 5981 "DEAUTH TX %d", event->u.mlme.reason); 5982 } 5983 #undef CHECK_MLME_TRIGGER 5984 } 5985 5986 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5987 struct ieee80211_vif *vif, 5988 const struct ieee80211_event *event) 5989 { 5990 struct iwl_fw_dbg_trigger_tlv *trig; 5991 struct iwl_fw_dbg_trigger_ba *ba_trig; 5992 5993 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5994 FW_DBG_TRIGGER_BA); 5995 if (!trig) 5996 return; 5997 5998 ba_trig = (void *)trig->data; 5999 6000 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6001 return; 6002 6003 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6004 "BAR received from %pM, tid %d, ssn %d", 6005 event->u.ba.sta->addr, event->u.ba.tid, 6006 event->u.ba.ssn); 6007 } 6008 6009 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6010 struct ieee80211_vif *vif, 6011 const struct ieee80211_event *event) 6012 { 6013 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6014 6015 switch (event->type) { 6016 case MLME_EVENT: 6017 iwl_mvm_event_mlme_callback(mvm, vif, event); 6018 break; 6019 case BAR_RX_EVENT: 6020 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6021 break; 6022 case BA_FRAME_TIMEOUT: 6023 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6024 event->u.ba.tid); 6025 break; 6026 default: 6027 break; 6028 } 6029 } 6030 6031 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6032 enum iwl_mvm_rxq_notif_type type, 6033 bool sync, 6034 const void *data, u32 size) 6035 { 6036 struct { 6037 struct iwl_rxq_sync_cmd cmd; 6038 struct iwl_mvm_internal_rxq_notif notif; 6039 } __packed cmd = { 6040 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6041 .cmd.count = 6042 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6043 size), 6044 .notif.type = type, 6045 .notif.sync = sync, 6046 }; 6047 struct iwl_host_cmd hcmd = { 6048 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6049 .data[0] = &cmd, 6050 .len[0] = sizeof(cmd), 6051 .data[1] = data, 6052 .len[1] = size, 6053 .flags = sync ? 0 : CMD_ASYNC, 6054 }; 6055 int ret; 6056 6057 /* size must be a multiple of DWORD */ 6058 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6059 return; 6060 6061 if (!iwl_mvm_has_new_rx_api(mvm)) 6062 return; 6063 6064 if (sync) { 6065 cmd.notif.cookie = mvm->queue_sync_cookie; 6066 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6067 } 6068 6069 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6070 if (ret) { 6071 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6072 goto out; 6073 } 6074 6075 if (sync) { 6076 lockdep_assert_held(&mvm->mutex); 6077 ret = wait_event_timeout(mvm->rx_sync_waitq, 6078 READ_ONCE(mvm->queue_sync_state) == 0 || 6079 iwl_mvm_is_radio_killed(mvm), 6080 HZ); 6081 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6082 "queue sync: failed to sync, state is 0x%lx\n", 6083 mvm->queue_sync_state); 6084 } 6085 6086 out: 6087 if (sync) { 6088 mvm->queue_sync_state = 0; 6089 mvm->queue_sync_cookie++; 6090 } 6091 } 6092 6093 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6094 { 6095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6096 6097 mutex_lock(&mvm->mutex); 6098 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6099 mutex_unlock(&mvm->mutex); 6100 } 6101 6102 int 6103 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6104 struct ieee80211_vif *vif, 6105 struct cfg80211_ftm_responder_stats *stats) 6106 { 6107 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6108 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6109 6110 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6111 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6112 return -EINVAL; 6113 6114 mutex_lock(&mvm->mutex); 6115 *stats = mvm->ftm_resp_stats; 6116 mutex_unlock(&mvm->mutex); 6117 6118 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6119 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6120 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6121 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6122 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6123 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6124 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6125 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6126 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6127 6128 return 0; 6129 } 6130 6131 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6132 struct cfg80211_pmsr_request *request) 6133 { 6134 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6135 int ret; 6136 6137 mutex_lock(&mvm->mutex); 6138 ret = iwl_mvm_ftm_start(mvm, vif, request); 6139 mutex_unlock(&mvm->mutex); 6140 6141 return ret; 6142 } 6143 6144 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6145 struct cfg80211_pmsr_request *request) 6146 { 6147 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6148 6149 mutex_lock(&mvm->mutex); 6150 iwl_mvm_ftm_abort(mvm, request); 6151 mutex_unlock(&mvm->mutex); 6152 } 6153 6154 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6155 { 6156 u8 protocol = ip_hdr(skb)->protocol; 6157 6158 if (!IS_ENABLED(CONFIG_INET)) 6159 return false; 6160 6161 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6162 } 6163 6164 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6165 struct sk_buff *head, 6166 struct sk_buff *skb) 6167 { 6168 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6169 6170 /* For now don't aggregate IPv6 in AMSDU */ 6171 if (skb->protocol != htons(ETH_P_IP)) 6172 return false; 6173 6174 if (!iwl_mvm_is_csum_supported(mvm)) 6175 return true; 6176 6177 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6178 } 6179 6180 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6181 struct ieee80211_vif *vif, 6182 struct cfg80211_set_hw_timestamp *hwts) 6183 { 6184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6185 u32 protocols = 0; 6186 int ret; 6187 6188 /* HW timestamping is only supported for a specific station */ 6189 if (!hwts->macaddr) 6190 return -EOPNOTSUPP; 6191 6192 if (hwts->enable) 6193 protocols = 6194 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6195 6196 mutex_lock(&mvm->mutex); 6197 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6198 mutex_unlock(&mvm->mutex); 6199 6200 return ret; 6201 } 6202 6203 const struct ieee80211_ops iwl_mvm_hw_ops = { 6204 .tx = iwl_mvm_mac_tx, 6205 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6206 .ampdu_action = iwl_mvm_mac_ampdu_action, 6207 .get_antenna = iwl_mvm_op_get_antenna, 6208 .start = iwl_mvm_mac_start, 6209 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6210 .stop = iwl_mvm_mac_stop, 6211 .add_interface = iwl_mvm_mac_add_interface, 6212 .remove_interface = iwl_mvm_mac_remove_interface, 6213 .config = iwl_mvm_mac_config, 6214 .prepare_multicast = iwl_mvm_prepare_multicast, 6215 .configure_filter = iwl_mvm_configure_filter, 6216 .config_iface_filter = iwl_mvm_config_iface_filter, 6217 .bss_info_changed = iwl_mvm_bss_info_changed, 6218 .hw_scan = iwl_mvm_mac_hw_scan, 6219 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6220 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6221 .sta_state = iwl_mvm_mac_sta_state, 6222 .sta_notify = iwl_mvm_mac_sta_notify, 6223 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6224 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6225 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6226 .sta_rc_update = iwl_mvm_sta_rc_update, 6227 .conf_tx = iwl_mvm_mac_conf_tx, 6228 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6229 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6230 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6231 .flush = iwl_mvm_mac_flush, 6232 .flush_sta = iwl_mvm_mac_flush_sta, 6233 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6234 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6235 .set_key = iwl_mvm_mac_set_key, 6236 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6237 .remain_on_channel = iwl_mvm_roc, 6238 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6239 .add_chanctx = iwl_mvm_add_chanctx, 6240 .remove_chanctx = iwl_mvm_remove_chanctx, 6241 .change_chanctx = iwl_mvm_change_chanctx, 6242 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6243 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6244 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6245 6246 .start_ap = iwl_mvm_start_ap, 6247 .stop_ap = iwl_mvm_stop_ap, 6248 .join_ibss = iwl_mvm_start_ibss, 6249 .leave_ibss = iwl_mvm_stop_ibss, 6250 6251 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6252 6253 .set_tim = iwl_mvm_set_tim, 6254 6255 .channel_switch = iwl_mvm_channel_switch, 6256 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6257 .post_channel_switch = iwl_mvm_post_channel_switch, 6258 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6259 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6260 6261 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6262 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6263 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6264 6265 .event_callback = iwl_mvm_mac_event_callback, 6266 6267 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6268 6269 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6270 6271 #ifdef CONFIG_PM_SLEEP 6272 /* look at d3.c */ 6273 .suspend = iwl_mvm_suspend, 6274 .resume = iwl_mvm_resume, 6275 .set_wakeup = iwl_mvm_set_wakeup, 6276 .set_rekey_data = iwl_mvm_set_rekey_data, 6277 #if IS_ENABLED(CONFIG_IPV6) 6278 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6279 #endif 6280 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6281 #endif 6282 .get_survey = iwl_mvm_mac_get_survey, 6283 .sta_statistics = iwl_mvm_mac_sta_statistics, 6284 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6285 .start_pmsr = iwl_mvm_start_pmsr, 6286 .abort_pmsr = iwl_mvm_abort_pmsr, 6287 6288 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6289 #ifdef CONFIG_IWLWIFI_DEBUGFS 6290 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6291 #endif 6292 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6293 }; 6294