1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-eeprom-parse.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_STATION), 37 }, 38 { 39 .max = 1, 40 .types = BIT(NL80211_IFTYPE_AP) | 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | 42 BIT(NL80211_IFTYPE_P2P_GO), 43 }, 44 { 45 .max = 1, 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 47 }, 48 }; 49 50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 51 { 52 .num_different_channels = 2, 53 .max_interfaces = 3, 54 .limits = iwl_mvm_limits, 55 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 56 }, 57 }; 58 59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 60 .max_peers = IWL_MVM_TOF_MAX_APS, 61 .report_ap_tsf = 1, 62 .randomize_mac_addr = 1, 63 64 .ftm = { 65 .supported = 1, 66 .asap = 1, 67 .non_asap = 1, 68 .request_lci = 1, 69 .request_civicloc = 1, 70 .trigger_based = 1, 71 .non_trigger_based = 1, 72 .max_bursts_exponent = -1, /* all supported */ 73 .max_ftms_per_burst = 0, /* no limits */ 74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80) | 78 BIT(NL80211_CHAN_WIDTH_160), 79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 80 BIT(NL80211_PREAMBLE_HT) | 81 BIT(NL80211_PREAMBLE_VHT) | 82 BIT(NL80211_PREAMBLE_HE), 83 }, 84 }; 85 86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 87 enum set_key_cmd cmd, 88 struct ieee80211_vif *vif, 89 struct ieee80211_sta *sta, 90 struct ieee80211_key_conf *key); 91 92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 93 { 94 int i; 95 96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 97 for (i = 0; i < NUM_PHY_CTX; i++) { 98 mvm->phy_ctxts[i].id = i; 99 mvm->phy_ctxts[i].ref = 0; 100 } 101 } 102 103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 104 const char *alpha2, 105 enum iwl_mcc_source src_id, 106 bool *changed) 107 { 108 struct ieee80211_regdomain *regd = NULL; 109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 111 struct iwl_mcc_update_resp_v8 *resp; 112 u8 resp_ver; 113 114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 115 116 lockdep_assert_held(&mvm->mutex); 117 118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 119 if (IS_ERR_OR_NULL(resp)) { 120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 121 PTR_ERR_OR_ZERO(resp)); 122 resp = NULL; 123 goto out; 124 } 125 126 if (changed) { 127 u32 status = le32_to_cpu(resp->status); 128 129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 130 status == MCC_RESP_ILLEGAL); 131 } 132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 133 MCC_UPDATE_CMD, 0); 134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 135 136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 137 __le32_to_cpu(resp->n_channels), 138 resp->channels, 139 __le16_to_cpu(resp->mcc), 140 __le16_to_cpu(resp->geo_info), 141 le32_to_cpu(resp->cap), resp_ver); 142 /* Store the return source id */ 143 src_id = resp->source_id; 144 if (IS_ERR_OR_NULL(regd)) { 145 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 146 PTR_ERR_OR_ZERO(regd)); 147 goto out; 148 } 149 150 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 151 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 152 mvm->lar_regdom_set = true; 153 mvm->mcc_src = src_id; 154 155 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 156 157 out: 158 kfree(resp); 159 return regd; 160 } 161 162 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 163 { 164 bool changed; 165 struct ieee80211_regdomain *regd; 166 167 if (!iwl_mvm_is_lar_supported(mvm)) 168 return; 169 170 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 171 if (!IS_ERR_OR_NULL(regd)) { 172 /* only update the regulatory core if changed */ 173 if (changed) 174 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 175 176 kfree(regd); 177 } 178 } 179 180 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 181 bool *changed) 182 { 183 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 184 iwl_mvm_is_wifi_mcc_supported(mvm) ? 185 MCC_SOURCE_GET_CURRENT : 186 MCC_SOURCE_OLD_FW, changed); 187 } 188 189 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 190 { 191 enum iwl_mcc_source used_src; 192 struct ieee80211_regdomain *regd; 193 int ret; 194 bool changed; 195 const struct ieee80211_regdomain *r = 196 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 197 198 if (!r) 199 return -ENOENT; 200 201 /* save the last source in case we overwrite it below */ 202 used_src = mvm->mcc_src; 203 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 204 /* Notify the firmware we support wifi location updates */ 205 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 206 if (!IS_ERR_OR_NULL(regd)) 207 kfree(regd); 208 } 209 210 /* Now set our last stored MCC and source */ 211 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 212 &changed); 213 if (IS_ERR_OR_NULL(regd)) 214 return -EIO; 215 216 /* update cfg80211 if the regdomain was changed */ 217 if (changed) 218 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 219 else 220 ret = 0; 221 222 kfree(regd); 223 return ret; 224 } 225 226 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 227 static const u8 he_if_types_ext_capa_sta[] = { 228 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 229 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 230 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 231 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 232 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 233 }; 234 235 static const u8 tm_if_types_ext_capa_sta[] = { 236 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 237 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 238 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 239 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 240 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 241 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 242 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 243 }; 244 245 /* Additional interface types for which extended capabilities are 246 * specified separately 247 */ 248 249 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 250 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 251 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 252 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 253 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 254 255 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 256 { 257 .iftype = NL80211_IFTYPE_STATION, 258 .extended_capabilities = he_if_types_ext_capa_sta, 259 .extended_capabilities_mask = he_if_types_ext_capa_sta, 260 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 261 /* relevant only if EHT is supported */ 262 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 263 }, 264 { 265 .iftype = NL80211_IFTYPE_STATION, 266 .extended_capabilities = tm_if_types_ext_capa_sta, 267 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 268 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 269 /* relevant only if EHT is supported */ 270 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 271 }, 272 }; 273 274 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 275 { 276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 277 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 278 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 279 return 0; 280 } 281 282 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 283 { 284 struct ieee80211_hw *hw = mvm->hw; 285 int num_mac, ret, i; 286 static const u32 mvm_ciphers[] = { 287 WLAN_CIPHER_SUITE_WEP40, 288 WLAN_CIPHER_SUITE_WEP104, 289 WLAN_CIPHER_SUITE_TKIP, 290 WLAN_CIPHER_SUITE_CCMP, 291 }; 292 #ifdef CONFIG_PM_SLEEP 293 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 294 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 295 #endif 296 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 297 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 298 299 /* Tell mac80211 our characteristics */ 300 ieee80211_hw_set(hw, SIGNAL_DBM); 301 ieee80211_hw_set(hw, SPECTRUM_MGMT); 302 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 303 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 304 ieee80211_hw_set(hw, SUPPORTS_PS); 305 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 306 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 307 ieee80211_hw_set(hw, CONNECTION_MONITOR); 308 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 309 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 310 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 311 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 312 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 313 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 314 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 315 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 316 317 /* Set this early since we need to have it for the check below */ 318 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 319 !iwlwifi_mod_params.disable_11ax && 320 !iwlwifi_mod_params.disable_11be) 321 hw->wiphy->flags |= WIPHY_FLAG_DISABLE_WEXT; 322 323 /* With MLD FW API, it tracks timing by itself, 324 * no need for any timing from the host 325 */ 326 if (!mvm->mld_api_is_used) 327 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 328 329 /* We should probably have this, but mac80211 330 * currently doesn't support it for MLO. 331 */ 332 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 333 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 334 335 /* 336 * On older devices, enabling TX A-MSDU occasionally leads to 337 * something getting messed up, the command read from the FIFO 338 * gets out of sync and isn't a TX command, so that we have an 339 * assert EDC. 340 * 341 * It's not clear where the bug is, but since we didn't used to 342 * support A-MSDU until moving the mac80211 iTXQs, just leave it 343 * for older devices. We also don't see this issue on any newer 344 * devices. 345 */ 346 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 347 ieee80211_hw_set(hw, TX_AMSDU); 348 ieee80211_hw_set(hw, TX_FRAG_LIST); 349 350 if (iwl_mvm_has_tlc_offload(mvm)) { 351 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 352 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 353 } 354 355 /* We want to use the mac80211's reorder buffer for 9000 */ 356 if (iwl_mvm_has_new_rx_api(mvm) && 357 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 358 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 359 360 if (fw_has_capa(&mvm->fw->ucode_capa, 361 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 362 ieee80211_hw_set(hw, AP_LINK_PS); 363 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 364 /* 365 * we absolutely need this for the new TX API since that comes 366 * with many more queues than the current code can deal with 367 * for station powersave 368 */ 369 return -EINVAL; 370 } 371 372 if (mvm->trans->num_rx_queues > 1) 373 ieee80211_hw_set(hw, USES_RSS); 374 375 if (mvm->trans->max_skb_frags) 376 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 377 378 hw->queues = IEEE80211_NUM_ACS; 379 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 380 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 381 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 382 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 383 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 384 385 hw->radiotap_timestamp.units_pos = 386 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 387 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 388 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 389 hw->radiotap_timestamp.accuracy = 22; 390 391 if (!iwl_mvm_has_tlc_offload(mvm)) 392 hw->rate_control_algorithm = RS_NAME; 393 394 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 395 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 396 hw->max_tx_fragments = mvm->trans->max_skb_frags; 397 398 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 399 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 400 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 401 hw->wiphy->cipher_suites = mvm->ciphers; 402 403 if (iwl_mvm_has_new_rx_api(mvm)) { 404 mvm->ciphers[hw->wiphy->n_cipher_suites] = 405 WLAN_CIPHER_SUITE_GCMP; 406 hw->wiphy->n_cipher_suites++; 407 mvm->ciphers[hw->wiphy->n_cipher_suites] = 408 WLAN_CIPHER_SUITE_GCMP_256; 409 hw->wiphy->n_cipher_suites++; 410 } 411 412 if (iwlwifi_mod_params.swcrypto) 413 IWL_ERR(mvm, 414 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 415 if (!iwlwifi_mod_params.bt_coex_active) 416 IWL_ERR(mvm, 417 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 418 419 ieee80211_hw_set(hw, MFP_CAPABLE); 420 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 421 hw->wiphy->n_cipher_suites++; 422 if (iwl_mvm_has_new_rx_api(mvm)) { 423 mvm->ciphers[hw->wiphy->n_cipher_suites] = 424 WLAN_CIPHER_SUITE_BIP_GMAC_128; 425 hw->wiphy->n_cipher_suites++; 426 mvm->ciphers[hw->wiphy->n_cipher_suites] = 427 WLAN_CIPHER_SUITE_BIP_GMAC_256; 428 hw->wiphy->n_cipher_suites++; 429 } 430 431 wiphy_ext_feature_set(hw->wiphy, 432 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 433 wiphy_ext_feature_set(hw->wiphy, 434 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 435 436 if (fw_has_capa(&mvm->fw->ucode_capa, 437 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 438 wiphy_ext_feature_set(hw->wiphy, 439 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 440 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 441 } 442 443 if (sec_key_ver && 444 fw_has_capa(&mvm->fw->ucode_capa, 445 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 446 wiphy_ext_feature_set(hw->wiphy, 447 NL80211_EXT_FEATURE_BEACON_PROTECTION); 448 else if (fw_has_capa(&mvm->fw->ucode_capa, 449 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 450 wiphy_ext_feature_set(hw->wiphy, 451 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 452 453 if (fw_has_capa(&mvm->fw->ucode_capa, 454 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 455 hw->wiphy->hw_timestamp_max_peers = 1; 456 457 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 458 hw->wiphy->features |= 459 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 460 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 461 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 462 463 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 464 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 465 hw->chanctx_data_size = sizeof(u16); 466 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 467 468 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 469 BIT(NL80211_IFTYPE_P2P_CLIENT) | 470 BIT(NL80211_IFTYPE_AP) | 471 BIT(NL80211_IFTYPE_P2P_GO) | 472 BIT(NL80211_IFTYPE_P2P_DEVICE) | 473 BIT(NL80211_IFTYPE_ADHOC); 474 475 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 476 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 477 478 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 479 * the hw, preventing us to control which key(id) to use per MPDU. 480 * Till that's fixed we can't use Extended Key ID for the newer cards. 481 */ 482 if (!iwl_mvm_has_new_tx_api(mvm)) 483 wiphy_ext_feature_set(hw->wiphy, 484 NL80211_EXT_FEATURE_EXT_KEY_ID); 485 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 486 487 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 488 if (iwl_mvm_is_lar_supported(mvm)) 489 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 490 else 491 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 492 REGULATORY_DISABLE_BEACON_HINTS; 493 494 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 495 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 496 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 497 498 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 499 hw->wiphy->n_iface_combinations = 500 ARRAY_SIZE(iwl_mvm_iface_combinations); 501 502 hw->wiphy->max_remain_on_channel_duration = 10000; 503 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 504 505 /* Extract MAC address */ 506 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 507 hw->wiphy->addresses = mvm->addresses; 508 hw->wiphy->n_addresses = 1; 509 510 /* Extract additional MAC addresses if available */ 511 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 512 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 513 514 for (i = 1; i < num_mac; i++) { 515 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 516 ETH_ALEN); 517 mvm->addresses[i].addr[5]++; 518 hw->wiphy->n_addresses++; 519 } 520 521 iwl_mvm_reset_phy_ctxts(mvm); 522 523 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 524 525 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 526 527 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 528 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 529 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 530 531 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 532 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 533 else 534 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 535 536 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 537 hw->wiphy->bands[NL80211_BAND_2GHZ] = 538 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 539 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 540 hw->wiphy->bands[NL80211_BAND_5GHZ] = 541 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 542 543 if (fw_has_capa(&mvm->fw->ucode_capa, 544 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 545 fw_has_api(&mvm->fw->ucode_capa, 546 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 547 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 548 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 549 } 550 if (fw_has_capa(&mvm->fw->ucode_capa, 551 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 552 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 553 hw->wiphy->bands[NL80211_BAND_6GHZ] = 554 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 555 556 hw->wiphy->hw_version = mvm->trans->hw_id; 557 558 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 559 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 560 else 561 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 562 563 hw->wiphy->max_sched_scan_reqs = 1; 564 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 565 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 566 /* we create the 802.11 header and zero length SSID IE. */ 567 hw->wiphy->max_sched_scan_ie_len = 568 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 569 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 570 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 571 572 /* 573 * the firmware uses u8 for num of iterations, but 0xff is saved for 574 * infinite loop, so the maximum number of iterations is actually 254. 575 */ 576 hw->wiphy->max_sched_scan_plan_iterations = 254; 577 578 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 579 NL80211_FEATURE_LOW_PRIORITY_SCAN | 580 NL80211_FEATURE_P2P_GO_OPPPS | 581 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 582 NL80211_FEATURE_DYNAMIC_SMPS | 583 NL80211_FEATURE_STATIC_SMPS | 584 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 585 586 if (fw_has_capa(&mvm->fw->ucode_capa, 587 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 588 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 589 if (fw_has_capa(&mvm->fw->ucode_capa, 590 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 591 hw->wiphy->features |= NL80211_FEATURE_QUIET; 592 593 if (fw_has_capa(&mvm->fw->ucode_capa, 594 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 595 hw->wiphy->features |= 596 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 597 598 if (fw_has_capa(&mvm->fw->ucode_capa, 599 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 600 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 601 602 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 603 IWL_FW_CMD_VER_UNKNOWN) >= 3) 604 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 605 606 if (fw_has_api(&mvm->fw->ucode_capa, 607 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 608 wiphy_ext_feature_set(hw->wiphy, 609 NL80211_EXT_FEATURE_SCAN_START_TIME); 610 wiphy_ext_feature_set(hw->wiphy, 611 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 612 } 613 614 if (iwl_mvm_is_oce_supported(mvm)) { 615 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 616 617 wiphy_ext_feature_set(hw->wiphy, 618 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 619 wiphy_ext_feature_set(hw->wiphy, 620 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 621 wiphy_ext_feature_set(hw->wiphy, 622 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 623 624 /* Old firmware also supports probe deferral and suppression */ 625 if (scan_ver < 15) 626 wiphy_ext_feature_set(hw->wiphy, 627 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 628 } 629 630 hw->wiphy->iftype_ext_capab = NULL; 631 hw->wiphy->num_iftype_ext_capab = 0; 632 633 if (mvm->nvm_data->sku_cap_11ax_enable && 634 !iwlwifi_mod_params.disable_11ax) { 635 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 636 hw->wiphy->num_iftype_ext_capab = 637 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 638 639 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 640 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 641 } 642 643 if (iwl_fw_lookup_cmd_ver(mvm->fw, 644 WIDE_ID(DATA_PATH_GROUP, 645 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 646 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 647 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 648 649 if (!hw->wiphy->iftype_ext_capab) { 650 hw->wiphy->num_iftype_ext_capab = 1; 651 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 652 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 653 } else { 654 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 655 } 656 } 657 658 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 659 660 #ifdef CONFIG_PM_SLEEP 661 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 662 mvm->trans->ops->d3_suspend && 663 mvm->trans->ops->d3_resume && 664 device_can_wakeup(mvm->trans->dev)) { 665 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 666 WIPHY_WOWLAN_DISCONNECT | 667 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 668 WIPHY_WOWLAN_RFKILL_RELEASE | 669 WIPHY_WOWLAN_NET_DETECT; 670 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 671 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 672 WIPHY_WOWLAN_4WAY_HANDSHAKE; 673 674 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 675 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 676 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 677 mvm->wowlan.max_nd_match_sets = 678 iwl_umac_scan_get_max_profiles(mvm->fw); 679 hw->wiphy->wowlan = &mvm->wowlan; 680 } 681 #endif 682 683 ret = iwl_mvm_leds_init(mvm); 684 if (ret) 685 return ret; 686 687 if (fw_has_capa(&mvm->fw->ucode_capa, 688 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 689 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 690 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 691 ieee80211_hw_set(hw, TDLS_WIDER_BW); 692 } 693 694 if (fw_has_capa(&mvm->fw->ucode_capa, 695 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 696 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 697 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 698 } 699 700 hw->netdev_features |= mvm->cfg->features; 701 if (!iwl_mvm_is_csum_supported(mvm)) 702 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 703 704 if (mvm->cfg->vht_mu_mimo_supported) 705 wiphy_ext_feature_set(hw->wiphy, 706 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 707 708 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 709 wiphy_ext_feature_set(hw->wiphy, 710 NL80211_EXT_FEATURE_PROTECTED_TWT); 711 712 iwl_mvm_vendor_cmds_register(mvm); 713 714 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 715 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 716 717 ret = ieee80211_register_hw(mvm->hw); 718 if (ret) { 719 iwl_mvm_leds_exit(mvm); 720 } 721 722 return ret; 723 } 724 725 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 726 struct ieee80211_sta *sta) 727 { 728 if (likely(sta)) { 729 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 730 return; 731 } else { 732 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 733 return; 734 } 735 736 ieee80211_free_txskb(mvm->hw, skb); 737 } 738 739 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 740 struct ieee80211_tx_control *control, struct sk_buff *skb) 741 { 742 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 743 struct ieee80211_sta *sta = control->sta; 744 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 745 struct ieee80211_hdr *hdr = (void *)skb->data; 746 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 747 IEEE80211_TX_CTL_TX_OFFCHAN; 748 u32 link_id = u32_get_bits(info->control.flags, 749 IEEE80211_TX_CTRL_MLO_LINK); 750 struct ieee80211_sta *tmp_sta = sta; 751 752 if (iwl_mvm_is_radio_killed(mvm)) { 753 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 754 goto drop; 755 } 756 757 if (offchannel && 758 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 759 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 760 goto drop; 761 762 /* 763 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 764 * so we treat the others as broadcast 765 */ 766 if (ieee80211_is_mgmt(hdr->frame_control)) 767 sta = NULL; 768 769 /* If there is no sta, and it's not offchannel - send through AP */ 770 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 771 !offchannel) { 772 struct iwl_mvm_vif *mvmvif = 773 iwl_mvm_vif_from_mac80211(info->control.vif); 774 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 775 776 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 777 /* mac80211 holds rcu read lock */ 778 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 779 if (IS_ERR_OR_NULL(sta)) 780 goto drop; 781 } 782 } 783 784 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 785 !ieee80211_is_probe_resp(hdr->frame_control)) { 786 /* translate MLD addresses to LINK addresses */ 787 struct ieee80211_link_sta *link_sta = 788 rcu_dereference(tmp_sta->link[link_id]); 789 struct ieee80211_bss_conf *link_conf = 790 rcu_dereference(info->control.vif->link_conf[link_id]); 791 struct ieee80211_mgmt *mgmt; 792 793 if (WARN_ON(!link_sta || !link_conf)) 794 goto drop; 795 796 /* if sta is NULL, the frame is a management frame */ 797 mgmt = (void *)hdr; 798 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 799 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 800 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 801 } 802 803 iwl_mvm_tx_skb(mvm, skb, sta); 804 return; 805 drop: 806 ieee80211_free_txskb(hw, skb); 807 } 808 809 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 810 { 811 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 812 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 813 struct sk_buff *skb = NULL; 814 815 /* 816 * No need for threads to be pending here, they can leave the first 817 * taker all the work. 818 * 819 * mvmtxq->tx_request logic: 820 * 821 * If 0, no one is currently TXing, set to 1 to indicate current thread 822 * will now start TX and other threads should quit. 823 * 824 * If 1, another thread is currently TXing, set to 2 to indicate to 825 * that thread that there was another request. Since that request may 826 * have raced with the check whether the queue is empty, the TXing 827 * thread should check the queue's status one more time before leaving. 828 * This check is done in order to not leave any TX hanging in the queue 829 * until the next TX invocation (which may not even happen). 830 * 831 * If 2, another thread is currently TXing, and it will already double 832 * check the queue, so do nothing. 833 */ 834 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 835 return; 836 837 rcu_read_lock(); 838 do { 839 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 840 &mvmtxq->state) && 841 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 842 &mvmtxq->state) && 843 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 844 skb = ieee80211_tx_dequeue(hw, txq); 845 846 if (!skb) { 847 if (txq->sta) 848 IWL_DEBUG_TX(mvm, 849 "TXQ of sta %pM tid %d is now empty\n", 850 txq->sta->addr, 851 txq->tid); 852 break; 853 } 854 855 iwl_mvm_tx_skb(mvm, skb, txq->sta); 856 } 857 } while (atomic_dec_return(&mvmtxq->tx_request)); 858 rcu_read_unlock(); 859 } 860 861 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 862 struct ieee80211_txq *txq) 863 { 864 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 865 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 866 867 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 868 !txq->sta) { 869 iwl_mvm_mac_itxq_xmit(hw, txq); 870 return; 871 } 872 873 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 874 * to handle any packets we leave on the txq now 875 */ 876 877 spin_lock_bh(&mvm->add_stream_lock); 878 /* The list is being deleted only after the queue is fully allocated. */ 879 if (list_empty(&mvmtxq->list) && 880 /* recheck under lock */ 881 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 882 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 883 schedule_work(&mvm->add_stream_wk); 884 } 885 spin_unlock_bh(&mvm->add_stream_lock); 886 } 887 888 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 889 do { \ 890 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 891 break; \ 892 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 893 } while (0) 894 895 static void 896 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 897 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 898 enum ieee80211_ampdu_mlme_action action) 899 { 900 struct iwl_fw_dbg_trigger_tlv *trig; 901 struct iwl_fw_dbg_trigger_ba *ba_trig; 902 903 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 904 FW_DBG_TRIGGER_BA); 905 if (!trig) 906 return; 907 908 ba_trig = (void *)trig->data; 909 910 switch (action) { 911 case IEEE80211_AMPDU_TX_OPERATIONAL: { 912 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 913 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 914 915 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 916 "TX AGG START: MAC %pM tid %d ssn %d\n", 917 sta->addr, tid, tid_data->ssn); 918 break; 919 } 920 case IEEE80211_AMPDU_TX_STOP_CONT: 921 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 922 "TX AGG STOP: MAC %pM tid %d\n", 923 sta->addr, tid); 924 break; 925 case IEEE80211_AMPDU_RX_START: 926 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 927 "RX AGG START: MAC %pM tid %d ssn %d\n", 928 sta->addr, tid, rx_ba_ssn); 929 break; 930 case IEEE80211_AMPDU_RX_STOP: 931 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 932 "RX AGG STOP: MAC %pM tid %d\n", 933 sta->addr, tid); 934 break; 935 default: 936 break; 937 } 938 } 939 940 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 941 struct ieee80211_vif *vif, 942 struct ieee80211_ampdu_params *params) 943 { 944 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 945 int ret; 946 struct ieee80211_sta *sta = params->sta; 947 enum ieee80211_ampdu_mlme_action action = params->action; 948 u16 tid = params->tid; 949 u16 *ssn = ¶ms->ssn; 950 u16 buf_size = params->buf_size; 951 bool amsdu = params->amsdu; 952 u16 timeout = params->timeout; 953 954 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 955 sta->addr, tid, action); 956 957 if (!(mvm->nvm_data->sku_cap_11n_enable)) 958 return -EACCES; 959 960 mutex_lock(&mvm->mutex); 961 962 switch (action) { 963 case IEEE80211_AMPDU_RX_START: 964 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 965 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 966 struct iwl_mvm_vif *mvmvif; 967 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 968 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 969 970 mdata->opened_rx_ba_sessions = true; 971 mvmvif = iwl_mvm_vif_from_mac80211(vif); 972 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 973 } 974 if (!iwl_enable_rx_ampdu()) { 975 ret = -EINVAL; 976 break; 977 } 978 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 979 timeout); 980 break; 981 case IEEE80211_AMPDU_RX_STOP: 982 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 983 timeout); 984 break; 985 case IEEE80211_AMPDU_TX_START: 986 if (!iwl_enable_tx_ampdu()) { 987 ret = -EINVAL; 988 break; 989 } 990 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 991 break; 992 case IEEE80211_AMPDU_TX_STOP_CONT: 993 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 994 break; 995 case IEEE80211_AMPDU_TX_STOP_FLUSH: 996 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 997 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 998 break; 999 case IEEE80211_AMPDU_TX_OPERATIONAL: 1000 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1001 buf_size, amsdu); 1002 break; 1003 default: 1004 WARN_ON_ONCE(1); 1005 ret = -EINVAL; 1006 break; 1007 } 1008 1009 if (!ret) { 1010 u16 rx_ba_ssn = 0; 1011 1012 if (action == IEEE80211_AMPDU_RX_START) 1013 rx_ba_ssn = *ssn; 1014 1015 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1016 rx_ba_ssn, action); 1017 } 1018 mutex_unlock(&mvm->mutex); 1019 1020 return ret; 1021 } 1022 1023 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1024 struct ieee80211_vif *vif) 1025 { 1026 struct iwl_mvm *mvm = data; 1027 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1028 struct iwl_probe_resp_data *probe_data; 1029 unsigned int link_id; 1030 1031 mvmvif->uploaded = false; 1032 1033 spin_lock_bh(&mvm->time_event_lock); 1034 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1035 spin_unlock_bh(&mvm->time_event_lock); 1036 1037 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1038 1039 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1040 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1041 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1042 mvmvif->link[link_id]->phy_ctxt = NULL; 1043 mvmvif->link[link_id]->active = 0; 1044 mvmvif->link[link_id]->igtk = NULL; 1045 } 1046 1047 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1048 lockdep_is_held(&mvm->mutex)); 1049 if (probe_data) 1050 kfree_rcu(probe_data, rcu_head); 1051 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1052 } 1053 1054 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1055 { 1056 struct iwl_mvm *mvm = data; 1057 struct iwl_mvm_sta *mvm_sta; 1058 struct ieee80211_vif *vif; 1059 int link_id; 1060 1061 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1062 vif = mvm_sta->vif; 1063 1064 if (!sta->valid_links) 1065 return; 1066 1067 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1068 struct iwl_mvm_link_sta *mvm_link_sta; 1069 1070 mvm_link_sta = 1071 rcu_dereference_check(mvm_sta->link[link_id], 1072 lockdep_is_held(&mvm->mutex)); 1073 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1074 /* 1075 * We have a link STA but the link is inactive in 1076 * mac80211. This will happen if we failed to 1077 * deactivate the link but mac80211 roll back the 1078 * deactivation of the link. 1079 * Delete the stale data to avoid issues later on. 1080 */ 1081 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1082 link_id, false); 1083 } 1084 } 1085 } 1086 1087 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1088 { 1089 iwl_mvm_stop_device(mvm); 1090 1091 mvm->cur_aid = 0; 1092 1093 mvm->scan_status = 0; 1094 mvm->ps_disabled = false; 1095 mvm->rfkill_safe_init_done = false; 1096 1097 /* just in case one was running */ 1098 iwl_mvm_cleanup_roc_te(mvm); 1099 ieee80211_remain_on_channel_expired(mvm->hw); 1100 1101 iwl_mvm_ftm_restart(mvm); 1102 1103 /* 1104 * cleanup all interfaces, even inactive ones, as some might have 1105 * gone down during the HW restart 1106 */ 1107 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1108 1109 /* cleanup stations as links may be gone after restart */ 1110 ieee80211_iterate_stations_atomic(mvm->hw, 1111 iwl_mvm_cleanup_sta_iterator, mvm); 1112 1113 mvm->p2p_device_vif = NULL; 1114 1115 iwl_mvm_reset_phy_ctxts(mvm); 1116 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1117 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1118 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1119 1120 ieee80211_wake_queues(mvm->hw); 1121 1122 mvm->rx_ba_sessions = 0; 1123 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1124 mvm->monitor_on = false; 1125 #ifdef CONFIG_IWLWIFI_DEBUGFS 1126 mvm->beacon_inject_active = false; 1127 #endif 1128 1129 /* keep statistics ticking */ 1130 iwl_mvm_accu_radio_stats(mvm); 1131 } 1132 1133 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1134 { 1135 int ret; 1136 1137 lockdep_assert_held(&mvm->mutex); 1138 1139 ret = iwl_mvm_mei_get_ownership(mvm); 1140 if (ret) 1141 return ret; 1142 1143 if (mvm->mei_nvm_data) { 1144 /* We got the NIC, we can now free the MEI NVM data */ 1145 kfree(mvm->mei_nvm_data); 1146 mvm->mei_nvm_data = NULL; 1147 1148 /* 1149 * We can't free the nvm_data we allocated based on the SAP 1150 * data because we registered to cfg80211 with the channels 1151 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1152 * just in order to be able free it later. 1153 * NULLify nvm_data so that we will read the NVM from the 1154 * firmware this time. 1155 */ 1156 mvm->temp_nvm_data = mvm->nvm_data; 1157 mvm->nvm_data = NULL; 1158 } 1159 1160 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1161 /* 1162 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1163 * so later code will - from now on - see that we're doing it. 1164 */ 1165 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1166 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1167 /* Clean up some internal and mac80211 state on restart */ 1168 iwl_mvm_restart_cleanup(mvm); 1169 } 1170 ret = iwl_mvm_up(mvm); 1171 1172 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1173 NULL); 1174 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1175 NULL); 1176 1177 mvm->last_reset_or_resume_time_jiffies = jiffies; 1178 1179 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1180 /* Something went wrong - we need to finish some cleanup 1181 * that normally iwl_mvm_mac_restart_complete() below 1182 * would do. 1183 */ 1184 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1185 } 1186 1187 return ret; 1188 } 1189 1190 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1191 { 1192 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1193 int ret; 1194 int retry, max_retry = 0; 1195 1196 mutex_lock(&mvm->mutex); 1197 1198 /* we are starting the mac not in error flow, and restart is enabled */ 1199 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1200 iwlwifi_mod_params.fw_restart) { 1201 max_retry = IWL_MAX_INIT_RETRY; 1202 /* 1203 * This will prevent mac80211 recovery flows to trigger during 1204 * init failures 1205 */ 1206 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1207 } 1208 1209 for (retry = 0; retry <= max_retry; retry++) { 1210 ret = __iwl_mvm_mac_start(mvm); 1211 if (!ret) 1212 break; 1213 1214 /* 1215 * In PLDR sync PCI re-enumeration is needed. no point to retry 1216 * mac start before that. 1217 */ 1218 if (mvm->pldr_sync) { 1219 iwl_mei_alive_notif(false); 1220 iwl_trans_pcie_remove(mvm->trans, true); 1221 break; 1222 } 1223 1224 IWL_ERR(mvm, "mac start retry %d\n", retry); 1225 } 1226 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1227 1228 mutex_unlock(&mvm->mutex); 1229 1230 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1231 1232 return ret; 1233 } 1234 1235 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1236 { 1237 int ret; 1238 1239 mutex_lock(&mvm->mutex); 1240 1241 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1242 1243 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1244 if (ret) 1245 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1246 ret); 1247 1248 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1249 1250 /* 1251 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1252 * of packets the FW sent out, so we must reconnect. 1253 */ 1254 iwl_mvm_teardown_tdls_peers(mvm); 1255 1256 mutex_unlock(&mvm->mutex); 1257 } 1258 1259 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1260 enum ieee80211_reconfig_type reconfig_type) 1261 { 1262 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1263 1264 switch (reconfig_type) { 1265 case IEEE80211_RECONFIG_TYPE_RESTART: 1266 iwl_mvm_restart_complete(mvm); 1267 break; 1268 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1269 break; 1270 } 1271 } 1272 1273 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1274 { 1275 lockdep_assert_held(&mvm->mutex); 1276 1277 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1278 1279 /* firmware counters are obviously reset now, but we shouldn't 1280 * partially track so also clear the fw_reset_accu counters. 1281 */ 1282 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1283 1284 /* async_handlers_wk is now blocked */ 1285 1286 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1287 iwl_mvm_rm_aux_sta(mvm); 1288 1289 iwl_mvm_stop_device(mvm); 1290 1291 iwl_mvm_async_handlers_purge(mvm); 1292 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1293 1294 /* 1295 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1296 * hw (as restart_complete() won't be called in this case) and mac80211 1297 * won't execute the restart. 1298 * But make sure to cleanup interfaces that have gone down before/during 1299 * HW restart was requested. 1300 */ 1301 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1302 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1303 &mvm->status)) 1304 ieee80211_iterate_interfaces(mvm->hw, 0, 1305 iwl_mvm_cleanup_iterator, mvm); 1306 1307 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1308 * make sure there's nothing left there and warn if any is found. 1309 */ 1310 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1311 int i; 1312 1313 for (i = 0; i < mvm->max_scans; i++) { 1314 if (WARN_ONCE(mvm->scan_uid_status[i], 1315 "UMAC scan UID %d status was not cleaned\n", 1316 i)) 1317 mvm->scan_uid_status[i] = 0; 1318 } 1319 } 1320 } 1321 1322 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1323 { 1324 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1325 1326 flush_work(&mvm->async_handlers_wk); 1327 flush_work(&mvm->add_stream_wk); 1328 1329 /* 1330 * Lock and clear the firmware running bit here already, so that 1331 * new commands coming in elsewhere, e.g. from debugfs, will not 1332 * be able to proceed. This is important here because one of those 1333 * debugfs files causes the firmware dump to be triggered, and if we 1334 * don't stop debugfs accesses before canceling that it could be 1335 * retriggered after we flush it but before we've cleared the bit. 1336 */ 1337 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1338 1339 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1340 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1341 1342 /* 1343 * The work item could be running or queued if the 1344 * ROC time event stops just as we get here. 1345 */ 1346 flush_work(&mvm->roc_done_wk); 1347 1348 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1349 1350 mutex_lock(&mvm->mutex); 1351 __iwl_mvm_mac_stop(mvm); 1352 mutex_unlock(&mvm->mutex); 1353 1354 /* 1355 * The worker might have been waiting for the mutex, let it run and 1356 * discover that its list is now empty. 1357 */ 1358 cancel_work_sync(&mvm->async_handlers_wk); 1359 } 1360 1361 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1362 { 1363 u16 i; 1364 1365 lockdep_assert_held(&mvm->mutex); 1366 1367 for (i = 0; i < NUM_PHY_CTX; i++) 1368 if (!mvm->phy_ctxts[i].ref) 1369 return &mvm->phy_ctxts[i]; 1370 1371 IWL_ERR(mvm, "No available PHY context\n"); 1372 return NULL; 1373 } 1374 1375 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1376 s16 tx_power) 1377 { 1378 u32 cmd_id = REDUCE_TX_POWER_CMD; 1379 int len; 1380 struct iwl_dev_tx_power_cmd cmd = { 1381 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1382 .common.mac_context_id = 1383 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1384 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1385 }; 1386 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1387 IWL_FW_CMD_VER_UNKNOWN); 1388 1389 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1390 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1391 1392 if (cmd_ver == 7) 1393 len = sizeof(cmd.v7); 1394 else if (cmd_ver == 6) 1395 len = sizeof(cmd.v6); 1396 else if (fw_has_api(&mvm->fw->ucode_capa, 1397 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1398 len = sizeof(cmd.v5); 1399 else if (fw_has_capa(&mvm->fw->ucode_capa, 1400 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1401 len = sizeof(cmd.v4); 1402 else 1403 len = sizeof(cmd.v3); 1404 1405 /* all structs have the same common part, add it */ 1406 len += sizeof(cmd.common); 1407 1408 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1409 } 1410 1411 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1412 struct ieee80211_vif *vif) 1413 { 1414 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1416 int ret; 1417 1418 mutex_lock(&mvm->mutex); 1419 1420 if (vif->type == NL80211_IFTYPE_STATION) { 1421 struct iwl_mvm_sta *mvmsta; 1422 1423 mvmvif->csa_bcn_pending = false; 1424 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1425 mvmvif->deflink.ap_sta_id); 1426 1427 if (WARN_ON(!mvmsta)) { 1428 ret = -EIO; 1429 goto out_unlock; 1430 } 1431 1432 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1433 if (mvm->mld_api_is_used) 1434 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1435 else 1436 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1437 1438 if (!fw_has_capa(&mvm->fw->ucode_capa, 1439 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1440 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1441 if (ret) 1442 goto out_unlock; 1443 1444 iwl_mvm_stop_session_protection(mvm, vif); 1445 } 1446 } 1447 1448 mvmvif->ps_disabled = false; 1449 1450 ret = iwl_mvm_power_update_ps(mvm); 1451 1452 out_unlock: 1453 if (mvmvif->csa_failed) 1454 ret = -EIO; 1455 mutex_unlock(&mvm->mutex); 1456 1457 return ret; 1458 } 1459 1460 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1461 struct ieee80211_vif *vif) 1462 { 1463 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1464 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1465 struct iwl_chan_switch_te_cmd cmd = { 1466 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1467 mvmvif->color)), 1468 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1469 }; 1470 1471 /* 1472 * In the new flow since FW is in charge of the timing, 1473 * if driver has canceled the channel switch he will receive the 1474 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1475 */ 1476 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1477 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1478 return; 1479 1480 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1481 1482 mutex_lock(&mvm->mutex); 1483 if (!fw_has_capa(&mvm->fw->ucode_capa, 1484 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1485 iwl_mvm_remove_csa_period(mvm, vif); 1486 else 1487 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1488 WIDE_ID(MAC_CONF_GROUP, 1489 CHANNEL_SWITCH_TIME_EVENT_CMD), 1490 0, sizeof(cmd), &cmd)); 1491 mvmvif->csa_failed = true; 1492 mutex_unlock(&mvm->mutex); 1493 1494 iwl_mvm_post_channel_switch(hw, vif); 1495 } 1496 1497 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1498 { 1499 struct iwl_mvm_vif *mvmvif; 1500 struct ieee80211_vif *vif; 1501 1502 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1503 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1504 1505 /* Trigger disconnect (should clear the CSA state) */ 1506 ieee80211_chswitch_done(vif, false); 1507 } 1508 1509 static u8 1510 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1511 { 1512 int data_start; 1513 int control_start; 1514 int bw; 1515 1516 if (chandef->width == NL80211_CHAN_WIDTH_320) 1517 bw = 320; 1518 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1519 bw = 160; 1520 else 1521 return 0; 1522 1523 /* data is bw wide so the start is half the width */ 1524 data_start = chandef->center_freq1 - bw / 2; 1525 /* control is 20Mhz width */ 1526 control_start = chandef->chan->center_freq - 10; 1527 1528 return (control_start - data_start) / 80; 1529 } 1530 1531 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1532 struct ieee80211_vif *vif) 1533 { 1534 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1535 int ret; 1536 1537 lockdep_assert_held(&mvm->mutex); 1538 1539 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1540 if (ret) { 1541 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1542 return ret; 1543 } 1544 1545 /* Only queue for this station is the mcast queue, 1546 * which shouldn't be in TFD mask anyway 1547 */ 1548 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1549 vif->type, 1550 IWL_STA_MULTICAST); 1551 } 1552 1553 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1554 { 1555 lockdep_assert_held(&mvm->mutex); 1556 1557 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1558 return; 1559 1560 INIT_DELAYED_WORK(&mvmvif->csa_work, 1561 iwl_mvm_channel_switch_disconnect_wk); 1562 } 1563 1564 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1565 struct ieee80211_vif *vif) 1566 { 1567 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1568 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1569 int ret; 1570 1571 mutex_lock(&mvm->mutex); 1572 1573 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1574 1575 mvmvif->mvm = mvm; 1576 1577 /* the first link always points to the default one */ 1578 mvmvif->link[0] = &mvmvif->deflink; 1579 1580 /* 1581 * Not much to do here. The stack will not allow interface 1582 * types or combinations that we didn't advertise, so we 1583 * don't really have to check the types. 1584 */ 1585 1586 /* make sure that beacon statistics don't go backwards with FW reset */ 1587 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1588 mvmvif->deflink.beacon_stats.accu_num_beacons += 1589 mvmvif->deflink.beacon_stats.num_beacons; 1590 1591 /* Allocate resources for the MAC context, and add it to the fw */ 1592 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1593 if (ret) 1594 goto out; 1595 1596 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1597 1598 /* Currently not much to do for NAN */ 1599 if (vif->type == NL80211_IFTYPE_NAN) { 1600 ret = 0; 1601 goto out; 1602 } 1603 1604 /* 1605 * The AP binding flow can be done only after the beacon 1606 * template is configured (which happens only in the mac80211 1607 * start_ap() flow), and adding the broadcast station can happen 1608 * only after the binding. 1609 * In addition, since modifying the MAC before adding a bcast 1610 * station is not allowed by the FW, delay the adding of MAC context to 1611 * the point where we can also add the bcast station. 1612 * In short: there's not much we can do at this point, other than 1613 * allocating resources :) 1614 */ 1615 if (vif->type == NL80211_IFTYPE_AP || 1616 vif->type == NL80211_IFTYPE_ADHOC) { 1617 iwl_mvm_vif_dbgfs_register(mvm, vif); 1618 ret = 0; 1619 goto out; 1620 } 1621 1622 mvmvif->features |= hw->netdev_features; 1623 1624 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1625 if (ret) 1626 goto out_unlock; 1627 1628 ret = iwl_mvm_power_update_mac(mvm); 1629 if (ret) 1630 goto out_remove_mac; 1631 1632 /* beacon filtering */ 1633 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1634 if (ret) 1635 goto out_remove_mac; 1636 1637 if (!mvm->bf_allowed_vif && 1638 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1639 mvm->bf_allowed_vif = mvmvif; 1640 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1641 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1642 } 1643 1644 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1645 mvm->p2p_device_vif = vif; 1646 1647 iwl_mvm_tcm_add_vif(mvm, vif); 1648 1649 if (vif->type == NL80211_IFTYPE_MONITOR) { 1650 mvm->monitor_on = true; 1651 mvm->monitor_p80 = 1652 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1653 } 1654 1655 iwl_mvm_vif_dbgfs_register(mvm, vif); 1656 1657 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1658 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1659 !mvm->csme_vif && mvm->mei_registered) { 1660 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1661 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1662 mvm->csme_vif = vif; 1663 } 1664 1665 out: 1666 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1667 vif->type == NL80211_IFTYPE_ADHOC)) 1668 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1669 1670 goto out_unlock; 1671 1672 if (mvm->bf_allowed_vif == mvmvif) { 1673 mvm->bf_allowed_vif = NULL; 1674 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1675 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1676 } 1677 out_remove_mac: 1678 mvmvif->deflink.phy_ctxt = NULL; 1679 iwl_mvm_mac_ctxt_remove(mvm, vif); 1680 out_unlock: 1681 mutex_unlock(&mvm->mutex); 1682 1683 return ret; 1684 } 1685 1686 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1687 struct ieee80211_vif *vif) 1688 { 1689 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1690 1691 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1692 /* 1693 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1694 * We assume here that all the packets sent to the OFFCHANNEL 1695 * queue are sent in ROC session. 1696 */ 1697 flush_work(&mvm->roc_done_wk); 1698 } 1699 1700 cancel_delayed_work_sync(&mvmvif->csa_work); 1701 } 1702 1703 /* This function is doing the common part of removing the interface for 1704 * both - MLD and non-MLD modes. Returns true if removing the interface 1705 * is done 1706 */ 1707 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1708 struct ieee80211_vif *vif) 1709 { 1710 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1711 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1712 struct iwl_probe_resp_data *probe_data; 1713 1714 iwl_mvm_prepare_mac_removal(mvm, vif); 1715 1716 if (!(vif->type == NL80211_IFTYPE_AP || 1717 vif->type == NL80211_IFTYPE_ADHOC)) 1718 iwl_mvm_tcm_rm_vif(mvm, vif); 1719 1720 mutex_lock(&mvm->mutex); 1721 1722 if (vif == mvm->csme_vif) { 1723 iwl_mei_set_netdev(NULL); 1724 mvm->csme_vif = NULL; 1725 } 1726 1727 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1728 lockdep_is_held(&mvm->mutex)); 1729 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1730 if (probe_data) 1731 kfree_rcu(probe_data, rcu_head); 1732 1733 if (mvm->bf_allowed_vif == mvmvif) { 1734 mvm->bf_allowed_vif = NULL; 1735 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1736 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1737 } 1738 1739 if (vif->bss_conf.ftm_responder) 1740 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1741 1742 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1743 1744 /* 1745 * For AP/GO interface, the tear down of the resources allocated to the 1746 * interface is be handled as part of the stop_ap flow. 1747 */ 1748 if (vif->type == NL80211_IFTYPE_AP || 1749 vif->type == NL80211_IFTYPE_ADHOC) { 1750 #ifdef CONFIG_NL80211_TESTMODE 1751 if (vif == mvm->noa_vif) { 1752 mvm->noa_vif = NULL; 1753 mvm->noa_duration = 0; 1754 } 1755 #endif 1756 return true; 1757 } 1758 1759 iwl_mvm_power_update_mac(mvm); 1760 return false; 1761 } 1762 1763 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1764 struct ieee80211_vif *vif) 1765 { 1766 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1767 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1768 1769 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1770 goto out; 1771 1772 /* Before the interface removal, mac80211 would cancel the ROC, and the 1773 * ROC worker would be scheduled if needed. The worker would be flushed 1774 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1775 * binding etc. so nothing needs to be done here. 1776 */ 1777 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1778 if (mvmvif->deflink.phy_ctxt) { 1779 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1780 mvmvif->deflink.phy_ctxt = NULL; 1781 } 1782 mvm->p2p_device_vif = NULL; 1783 } 1784 1785 iwl_mvm_mac_ctxt_remove(mvm, vif); 1786 1787 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1788 1789 if (vif->type == NL80211_IFTYPE_MONITOR) 1790 mvm->monitor_on = false; 1791 1792 out: 1793 if (vif->type == NL80211_IFTYPE_AP || 1794 vif->type == NL80211_IFTYPE_ADHOC) { 1795 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1796 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1797 } 1798 1799 mutex_unlock(&mvm->mutex); 1800 } 1801 1802 struct iwl_mvm_mc_iter_data { 1803 struct iwl_mvm *mvm; 1804 int port_id; 1805 }; 1806 1807 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1808 struct ieee80211_vif *vif) 1809 { 1810 struct iwl_mvm_mc_iter_data *data = _data; 1811 struct iwl_mvm *mvm = data->mvm; 1812 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1813 struct iwl_host_cmd hcmd = { 1814 .id = MCAST_FILTER_CMD, 1815 .flags = CMD_ASYNC, 1816 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1817 }; 1818 int ret, len; 1819 1820 /* if we don't have free ports, mcast frames will be dropped */ 1821 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1822 return; 1823 1824 if (vif->type != NL80211_IFTYPE_STATION || 1825 !vif->cfg.assoc) 1826 return; 1827 1828 cmd->port_id = data->port_id++; 1829 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1830 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1831 1832 hcmd.len[0] = len; 1833 hcmd.data[0] = cmd; 1834 1835 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1836 if (ret) 1837 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1838 } 1839 1840 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1841 { 1842 struct iwl_mvm_mc_iter_data iter_data = { 1843 .mvm = mvm, 1844 }; 1845 int ret; 1846 1847 lockdep_assert_held(&mvm->mutex); 1848 1849 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1850 return; 1851 1852 ieee80211_iterate_active_interfaces_atomic( 1853 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1854 iwl_mvm_mc_iface_iterator, &iter_data); 1855 1856 /* 1857 * Send a (synchronous) ech command so that we wait for the 1858 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1859 * the interface iterator. Otherwise, we might get here over 1860 * and over again (by userspace just sending a lot of these) 1861 * and the CPU can send them faster than the firmware can 1862 * process them. 1863 * Note that the CPU is still faster - but with this we'll 1864 * actually send fewer commands overall because the CPU will 1865 * not schedule the work in mac80211 as frequently if it's 1866 * still running when rescheduled (possibly multiple times). 1867 */ 1868 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1869 if (ret) 1870 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1871 } 1872 1873 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1874 struct netdev_hw_addr_list *mc_list) 1875 { 1876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1877 struct iwl_mcast_filter_cmd *cmd; 1878 struct netdev_hw_addr *addr; 1879 int addr_count; 1880 bool pass_all; 1881 int len; 1882 1883 addr_count = netdev_hw_addr_list_count(mc_list); 1884 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1885 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1886 if (pass_all) 1887 addr_count = 0; 1888 1889 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1890 cmd = kzalloc(len, GFP_ATOMIC); 1891 if (!cmd) 1892 return 0; 1893 1894 if (pass_all) { 1895 cmd->pass_all = 1; 1896 return (u64)(unsigned long)cmd; 1897 } 1898 1899 netdev_hw_addr_list_for_each(addr, mc_list) { 1900 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1901 cmd->count, addr->addr); 1902 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1903 addr->addr, ETH_ALEN); 1904 cmd->count++; 1905 } 1906 1907 return (u64)(unsigned long)cmd; 1908 } 1909 1910 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1911 unsigned int changed_flags, 1912 unsigned int *total_flags, u64 multicast) 1913 { 1914 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1915 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1916 1917 mutex_lock(&mvm->mutex); 1918 1919 /* replace previous configuration */ 1920 kfree(mvm->mcast_filter_cmd); 1921 mvm->mcast_filter_cmd = cmd; 1922 1923 if (!cmd) 1924 goto out; 1925 1926 if (changed_flags & FIF_ALLMULTI) 1927 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1928 1929 if (cmd->pass_all) 1930 cmd->count = 0; 1931 1932 iwl_mvm_recalc_multicast(mvm); 1933 out: 1934 mutex_unlock(&mvm->mutex); 1935 *total_flags = 0; 1936 } 1937 1938 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1939 struct ieee80211_vif *vif, 1940 unsigned int filter_flags, 1941 unsigned int changed_flags) 1942 { 1943 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1944 1945 /* We support only filter for probe requests */ 1946 if (!(changed_flags & FIF_PROBE_REQ)) 1947 return; 1948 1949 /* Supported only for p2p client interfaces */ 1950 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1951 !vif->p2p) 1952 return; 1953 1954 mutex_lock(&mvm->mutex); 1955 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1956 mutex_unlock(&mvm->mutex); 1957 } 1958 1959 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1960 { 1961 struct iwl_mu_group_mgmt_cmd cmd = {}; 1962 1963 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1964 WLAN_MEMBERSHIP_LEN); 1965 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1966 WLAN_USER_POSITION_LEN); 1967 1968 return iwl_mvm_send_cmd_pdu(mvm, 1969 WIDE_ID(DATA_PATH_GROUP, 1970 UPDATE_MU_GROUPS_CMD), 1971 0, sizeof(cmd), &cmd); 1972 } 1973 1974 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1975 struct ieee80211_vif *vif) 1976 { 1977 if (vif->bss_conf.mu_mimo_owner) { 1978 struct iwl_mu_group_mgmt_notif *notif = _data; 1979 1980 /* 1981 * MU-MIMO Group Id action frame is little endian. We treat 1982 * the data received from firmware as if it came from the 1983 * action frame, so no conversion is needed. 1984 */ 1985 ieee80211_update_mu_groups(vif, 0, 1986 (u8 *)¬if->membership_status, 1987 (u8 *)¬if->user_position); 1988 } 1989 } 1990 1991 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1992 struct iwl_rx_cmd_buffer *rxb) 1993 { 1994 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1995 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1996 1997 ieee80211_iterate_active_interfaces_atomic( 1998 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1999 iwl_mvm_mu_mimo_iface_iterator, notif); 2000 } 2001 2002 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2003 { 2004 u8 byte_num = ppe_pos_bit / 8; 2005 u8 bit_num = ppe_pos_bit % 8; 2006 u8 residue_bits; 2007 u8 res; 2008 2009 if (bit_num <= 5) 2010 return (ppe[byte_num] >> bit_num) & 2011 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2012 2013 /* 2014 * If bit_num > 5, we have to combine bits with next byte. 2015 * Calculate how many bits we need to take from current byte (called 2016 * here "residue_bits"), and add them to bits from next byte. 2017 */ 2018 2019 residue_bits = 8 - bit_num; 2020 2021 res = (ppe[byte_num + 1] & 2022 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2023 residue_bits; 2024 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2025 2026 return res; 2027 } 2028 2029 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2030 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2031 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2032 bool inheritance) 2033 { 2034 int i; 2035 2036 /* 2037 * FW currently supports only nss == MAX_HE_SUPP_NSS 2038 * 2039 * If nss > MAX: we can ignore values we don't support 2040 * If nss < MAX: we can set zeros in other streams 2041 */ 2042 if (nss > MAX_HE_SUPP_NSS) { 2043 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2044 MAX_HE_SUPP_NSS); 2045 nss = MAX_HE_SUPP_NSS; 2046 } 2047 2048 for (i = 0; i < nss; i++) { 2049 u8 ru_index_tmp = ru_index_bitmap << 1; 2050 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2051 u8 bw; 2052 2053 for (bw = 0; 2054 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2055 bw++) { 2056 ru_index_tmp >>= 1; 2057 2058 /* 2059 * According to the 11be spec, if for a specific BW the PPE Thresholds 2060 * isn't present - it should inherit the thresholds from the last 2061 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2062 * this inheritance - continue in this case 2063 */ 2064 if (!(ru_index_tmp & 1)) { 2065 if (inheritance) 2066 goto set_thresholds; 2067 else 2068 continue; 2069 } 2070 2071 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2072 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2073 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2074 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2075 2076 set_thresholds: 2077 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2078 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2079 } 2080 } 2081 } 2082 2083 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2084 struct ieee80211_link_sta *link_sta, 2085 struct iwl_he_pkt_ext_v2 *pkt_ext, 2086 bool inheritance) 2087 { 2088 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2089 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2090 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2091 u8 ru_index_bitmap = 2092 u8_get_bits(*ppe, 2093 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2094 /* Starting after PPE header */ 2095 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2096 2097 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2098 inheritance); 2099 } 2100 2101 static int 2102 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2103 u8 nominal_padding) 2104 { 2105 int low_th = -1; 2106 int high_th = -1; 2107 int i; 2108 2109 /* all the macros are the same for EHT and HE */ 2110 switch (nominal_padding) { 2111 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2112 low_th = IWL_HE_PKT_EXT_NONE; 2113 high_th = IWL_HE_PKT_EXT_NONE; 2114 break; 2115 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2116 low_th = IWL_HE_PKT_EXT_BPSK; 2117 high_th = IWL_HE_PKT_EXT_NONE; 2118 break; 2119 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2120 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2121 low_th = IWL_HE_PKT_EXT_NONE; 2122 high_th = IWL_HE_PKT_EXT_BPSK; 2123 break; 2124 } 2125 2126 if (low_th < 0 || high_th < 0) 2127 return -EINVAL; 2128 2129 /* Set the PPE thresholds accordingly */ 2130 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2131 u8 bw; 2132 2133 for (bw = 0; 2134 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2135 bw++) { 2136 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2137 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2138 } 2139 } 2140 2141 return 0; 2142 } 2143 2144 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2145 u8 nominal_padding) 2146 { 2147 int i; 2148 2149 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2150 u8 bw; 2151 2152 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2153 bw++) { 2154 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2155 2156 if (nominal_padding > 2157 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2158 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2159 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2160 else if (nominal_padding == 2161 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2162 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2163 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2164 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2165 } 2166 } 2167 } 2168 2169 /* Set the pkt_ext field according to PPE Thresholds element */ 2170 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2171 struct ieee80211_link_sta *link_sta, 2172 struct iwl_he_pkt_ext_v2 *pkt_ext) 2173 { 2174 u8 nominal_padding; 2175 int i, ret = 0; 2176 2177 if (WARN_ON(!link_sta)) 2178 return -EINVAL; 2179 2180 /* Initialize the PPE thresholds to "None" (7), as described in Table 2181 * 9-262ac of 80211.ax/D3.0. 2182 */ 2183 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2184 sizeof(struct iwl_he_pkt_ext_v2)); 2185 2186 if (link_sta->eht_cap.has_eht) { 2187 nominal_padding = 2188 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2189 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2190 2191 /* If PPE Thresholds exists, parse them into a FW-familiar 2192 * format. 2193 */ 2194 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2195 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2196 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2197 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2198 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2199 u8 ru_index_bitmap = 2200 u16_get_bits(*ppe, 2201 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2202 /* Starting after PPE header */ 2203 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2204 2205 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2206 ppe, ppe_pos_bit, true); 2207 /* EHT PPE Thresholds doesn't exist - set the API according to 2208 * HE PPE Tresholds 2209 */ 2210 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2211 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2212 /* Even though HE Capabilities IE doesn't contain PPE 2213 * Thresholds for BW 320Mhz, thresholds for this BW will 2214 * be filled in with the same values as 160Mhz, due to 2215 * the inheritance, as required. 2216 */ 2217 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2218 true); 2219 2220 /* According to the requirements, for MCSs 12-13 the 2221 * maximum value between HE PPE Threshold and Common 2222 * Nominal Packet Padding needs to be taken 2223 */ 2224 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2225 2226 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2227 * take the Thresholds from Common Nominal Packet Padding field 2228 */ 2229 } else { 2230 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2231 nominal_padding); 2232 } 2233 } else if (link_sta->he_cap.has_he) { 2234 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2235 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2236 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2237 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2238 false); 2239 /* PPE Thresholds doesn't exist - set the API PPE values 2240 * according to Common Nominal Packet Padding field. 2241 */ 2242 } else { 2243 nominal_padding = 2244 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2245 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2246 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2247 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2248 nominal_padding); 2249 } 2250 } 2251 2252 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2253 int bw; 2254 2255 for (bw = 0; 2256 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2257 bw++) { 2258 u8 *qam_th = 2259 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2260 2261 IWL_DEBUG_HT(mvm, 2262 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2263 i, bw, qam_th[0], qam_th[1]); 2264 } 2265 } 2266 return ret; 2267 } 2268 2269 /* 2270 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2271 * is enabled or not 2272 */ 2273 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2274 const struct iwl_mvm_vif_link_info *link_info, 2275 struct iwl_he_backoff_conf *trig_based_txf) 2276 { 2277 int i; 2278 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2279 bool mu_edca_enabled = true; 2280 2281 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2282 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2283 &link_info->queue_params[i].mu_edca_param_rec; 2284 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2285 2286 if (!link_info->queue_params[i].mu_edca) { 2287 mu_edca_enabled = false; 2288 break; 2289 } 2290 2291 trig_based_txf[ac].cwmin = 2292 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2293 trig_based_txf[ac].cwmax = 2294 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2295 trig_based_txf[ac].aifsn = 2296 cpu_to_le16(mu_edca->aifsn & 0xf); 2297 trig_based_txf[ac].mu_time = 2298 cpu_to_le16(mu_edca->mu_edca_timer); 2299 } 2300 2301 return mu_edca_enabled; 2302 } 2303 2304 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2305 { 2306 const struct ieee80211_supported_band *sband; 2307 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2308 2309 /* This capability is the same for all bands, 2310 * so take it from one of them. 2311 */ 2312 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2313 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2314 2315 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2316 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2317 } 2318 2319 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2320 struct ieee80211_link_sta *link_sta) 2321 { 2322 u8 *mac_cap_info = 2323 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2324 __le32 htc_flags = 0; 2325 2326 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2327 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2328 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2329 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2330 u8 link_adap = 2331 ((mac_cap_info[2] & 2332 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2333 (mac_cap_info[1] & 2334 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2335 2336 if (link_adap == 2) 2337 htc_flags |= 2338 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2339 else if (link_adap == 3) 2340 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2341 } 2342 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2343 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2344 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2345 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2346 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2347 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2348 2349 return htc_flags; 2350 } 2351 2352 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2353 struct ieee80211_vif *vif, u8 sta_id) 2354 { 2355 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2356 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2357 .sta_id = sta_id, 2358 .tid_limit = IWL_MAX_TID_COUNT, 2359 .bss_color = vif->bss_conf.he_bss_color.color, 2360 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2361 .frame_time_rts_th = 2362 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2363 }; 2364 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2365 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2366 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2367 int size; 2368 struct ieee80211_sta *sta; 2369 u32 flags; 2370 int i; 2371 void *cmd; 2372 2373 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2374 ver = 1; 2375 2376 switch (ver) { 2377 case 1: 2378 /* same layout as v2 except some data at the end */ 2379 cmd = &sta_ctxt_cmd_v2; 2380 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2381 break; 2382 case 2: 2383 cmd = &sta_ctxt_cmd_v2; 2384 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2385 break; 2386 case 3: 2387 cmd = &sta_ctxt_cmd; 2388 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2389 break; 2390 default: 2391 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2392 return; 2393 } 2394 2395 rcu_read_lock(); 2396 2397 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2398 if (IS_ERR_OR_NULL(sta)) { 2399 rcu_read_unlock(); 2400 WARN(1, "Can't find STA to configure HE\n"); 2401 return; 2402 } 2403 2404 if (!sta->deflink.he_cap.has_he) { 2405 rcu_read_unlock(); 2406 return; 2407 } 2408 2409 flags = 0; 2410 2411 /* Block 26-tone RU OFDMA transmissions */ 2412 if (mvmvif->deflink.he_ru_2mhz_block) 2413 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2414 2415 /* HTC flags */ 2416 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2417 2418 /* PPE Thresholds */ 2419 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2420 flags |= STA_CTXT_HE_PACKET_EXT; 2421 2422 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2423 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2424 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2425 2426 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2427 IEEE80211_HE_MAC_CAP2_ACK_EN) 2428 flags |= STA_CTXT_HE_ACK_ENABLED; 2429 2430 rcu_read_unlock(); 2431 2432 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2433 &sta_ctxt_cmd.trig_based_txf[0])) 2434 flags |= STA_CTXT_HE_MU_EDCA_CW; 2435 2436 if (vif->bss_conf.uora_exists) { 2437 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2438 2439 sta_ctxt_cmd.rand_alloc_ecwmin = 2440 vif->bss_conf.uora_ocw_range & 0x7; 2441 sta_ctxt_cmd.rand_alloc_ecwmax = 2442 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2443 } 2444 2445 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2446 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2447 2448 if (vif->bss_conf.nontransmitted) { 2449 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2450 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2451 vif->bss_conf.transmitter_bssid); 2452 sta_ctxt_cmd.max_bssid_indicator = 2453 vif->bss_conf.bssid_indicator; 2454 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2455 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2456 sta_ctxt_cmd.profile_periodicity = 2457 vif->bss_conf.profile_periodicity; 2458 } 2459 2460 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2461 2462 if (ver < 3) { 2463 /* fields before pkt_ext */ 2464 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2465 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2466 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2467 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2468 2469 /* pkt_ext */ 2470 for (i = 0; 2471 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2472 i++) { 2473 u8 bw; 2474 2475 for (bw = 0; 2476 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2477 bw++) { 2478 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2479 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2480 2481 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2482 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2483 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2484 } 2485 } 2486 2487 /* fields after pkt_ext */ 2488 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2489 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2490 sizeof(sta_ctxt_cmd_v2) - 2491 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2492 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2493 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2494 (u8 *)&sta_ctxt_cmd + 2495 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2496 sizeof(sta_ctxt_cmd) - 2497 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2498 sta_ctxt_cmd_v2.reserved3 = 0; 2499 } 2500 2501 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2502 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2503 } 2504 2505 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2506 u32 duration_override) 2507 { 2508 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2509 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2510 2511 if (duration_override > duration) 2512 duration = duration_override; 2513 2514 /* Try really hard to protect the session and hear a beacon 2515 * The new session protection command allows us to protect the 2516 * session for a much longer time since the firmware will internally 2517 * create two events: a 300TU one with a very high priority that 2518 * won't be fragmented which should be enough for 99% of the cases, 2519 * and another one (which we configure here to be 900TU long) which 2520 * will have a slightly lower priority, but more importantly, can be 2521 * fragmented so that it'll allow other activities to run. 2522 */ 2523 if (fw_has_capa(&mvm->fw->ucode_capa, 2524 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2525 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2526 min_duration, false); 2527 else 2528 iwl_mvm_protect_session(mvm, vif, duration, 2529 min_duration, 500, false); 2530 } 2531 2532 /* Handle association common part to MLD and non-MLD modes */ 2533 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2534 struct ieee80211_vif *vif, 2535 u64 changes) 2536 { 2537 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2538 int ret; 2539 2540 /* The firmware tracks the MU-MIMO group on its own. 2541 * However, on HW restart we should restore this data. 2542 */ 2543 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2544 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2545 ret = iwl_mvm_update_mu_groups(mvm, vif); 2546 if (ret) 2547 IWL_ERR(mvm, 2548 "failed to update VHT MU_MIMO groups\n"); 2549 } 2550 2551 iwl_mvm_recalc_multicast(mvm); 2552 2553 /* reset rssi values */ 2554 mvmvif->bf_data.ave_beacon_signal = 0; 2555 2556 iwl_mvm_bt_coex_vif_change(mvm); 2557 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2558 IEEE80211_SMPS_AUTOMATIC); 2559 if (fw_has_capa(&mvm->fw->ucode_capa, 2560 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2561 iwl_mvm_config_scan(mvm); 2562 } 2563 2564 /* Execute the common part for MLD and non-MLD modes */ 2565 void 2566 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2567 struct ieee80211_vif *vif, 2568 struct ieee80211_bss_conf *link_conf, 2569 u64 changes) 2570 { 2571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2572 int ret; 2573 2574 if (changes & BSS_CHANGED_BEACON_INFO) { 2575 /* We received a beacon from the associated AP so 2576 * remove the session protection. 2577 */ 2578 iwl_mvm_stop_session_protection(mvm, vif); 2579 2580 iwl_mvm_sf_update(mvm, vif, false); 2581 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2582 } 2583 2584 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2585 /* Send power command on every beacon change, 2586 * because we may have not enabled beacon abort yet. 2587 */ 2588 BSS_CHANGED_BEACON_INFO)) { 2589 ret = iwl_mvm_power_update_mac(mvm); 2590 if (ret) 2591 IWL_ERR(mvm, "failed to update power mode\n"); 2592 } 2593 2594 if (changes & BSS_CHANGED_CQM) { 2595 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2596 /* reset cqm events tracking */ 2597 mvmvif->bf_data.last_cqm_event = 0; 2598 if (mvmvif->bf_data.bf_enabled) { 2599 /* FIXME: need to update per link when FW API will 2600 * support it 2601 */ 2602 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2603 if (ret) 2604 IWL_ERR(mvm, 2605 "failed to update CQM thresholds\n"); 2606 } 2607 } 2608 2609 if (changes & BSS_CHANGED_BANDWIDTH) 2610 iwl_mvm_update_link_smps(vif, link_conf); 2611 } 2612 2613 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2614 struct ieee80211_vif *vif, 2615 struct ieee80211_bss_conf *bss_conf, 2616 u64 changes) 2617 { 2618 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2619 int ret; 2620 2621 /* 2622 * Re-calculate the tsf id, as the leader-follower relations depend 2623 * on the beacon interval, which was not known when the station 2624 * interface was added. 2625 */ 2626 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2627 if ((vif->bss_conf.he_support && 2628 !iwlwifi_mod_params.disable_11ax) || 2629 (vif->bss_conf.eht_support && 2630 !iwlwifi_mod_params.disable_11be)) 2631 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2632 2633 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2634 } 2635 2636 /* Update MU EDCA params */ 2637 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2638 vif->cfg.assoc && 2639 ((vif->bss_conf.he_support && 2640 !iwlwifi_mod_params.disable_11ax) || 2641 (vif->bss_conf.eht_support && 2642 !iwlwifi_mod_params.disable_11be))) 2643 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2644 2645 /* 2646 * If we're not associated yet, take the (new) BSSID before associating 2647 * so the firmware knows. If we're already associated, then use the old 2648 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2649 * branch for disassociation below. 2650 */ 2651 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2652 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2653 2654 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2655 if (ret) 2656 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2657 2658 /* after sending it once, adopt mac80211 data */ 2659 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2660 mvmvif->associated = vif->cfg.assoc; 2661 2662 if (changes & BSS_CHANGED_ASSOC) { 2663 if (vif->cfg.assoc) { 2664 /* clear statistics to get clean beacon counter */ 2665 iwl_mvm_request_statistics(mvm, true); 2666 memset(&mvmvif->deflink.beacon_stats, 0, 2667 sizeof(mvmvif->deflink.beacon_stats)); 2668 2669 /* add quota for this interface */ 2670 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2671 if (ret) { 2672 IWL_ERR(mvm, "failed to update quotas\n"); 2673 return; 2674 } 2675 2676 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2677 &mvm->status) && 2678 !fw_has_capa(&mvm->fw->ucode_capa, 2679 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2680 /* 2681 * If we're restarting then the firmware will 2682 * obviously have lost synchronisation with 2683 * the AP. It will attempt to synchronise by 2684 * itself, but we can make it more reliable by 2685 * scheduling a session protection time event. 2686 * 2687 * The firmware needs to receive a beacon to 2688 * catch up with synchronisation, use 110% of 2689 * the beacon interval. 2690 * 2691 * Set a large maximum delay to allow for more 2692 * than a single interface. 2693 * 2694 * For new firmware versions, rely on the 2695 * firmware. This is relevant for DCM scenarios 2696 * only anyway. 2697 */ 2698 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2699 iwl_mvm_protect_session(mvm, vif, dur, dur, 2700 5 * dur, false); 2701 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2702 &mvm->status) && 2703 !vif->bss_conf.dtim_period) { 2704 /* 2705 * If we're not restarting and still haven't 2706 * heard a beacon (dtim period unknown) then 2707 * make sure we still have enough minimum time 2708 * remaining in the time event, since the auth 2709 * might actually have taken quite a while 2710 * (especially for SAE) and so the remaining 2711 * time could be small without us having heard 2712 * a beacon yet. 2713 */ 2714 iwl_mvm_protect_assoc(mvm, vif, 0); 2715 } 2716 2717 iwl_mvm_sf_update(mvm, vif, false); 2718 iwl_mvm_power_vif_assoc(mvm, vif); 2719 if (vif->p2p) { 2720 iwl_mvm_update_smps(mvm, vif, 2721 IWL_MVM_SMPS_REQ_PROT, 2722 IEEE80211_SMPS_DYNAMIC, 0); 2723 } 2724 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2725 iwl_mvm_mei_host_disassociated(mvm); 2726 /* 2727 * If update fails - SF might be running in associated 2728 * mode while disassociated - which is forbidden. 2729 */ 2730 ret = iwl_mvm_sf_update(mvm, vif, false); 2731 WARN_ONCE(ret && 2732 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2733 &mvm->status), 2734 "Failed to update SF upon disassociation\n"); 2735 2736 /* 2737 * If we get an assert during the connection (after the 2738 * station has been added, but before the vif is set 2739 * to associated), mac80211 will re-add the station and 2740 * then configure the vif. Since the vif is not 2741 * associated, we would remove the station here and 2742 * this would fail the recovery. 2743 */ 2744 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2745 &mvm->status)) { 2746 /* first remove remaining keys */ 2747 iwl_mvm_sec_key_remove_ap(mvm, vif, 2748 &mvmvif->deflink, 0); 2749 2750 /* 2751 * Remove AP station now that 2752 * the MAC is unassoc 2753 */ 2754 ret = iwl_mvm_rm_sta_id(mvm, vif, 2755 mvmvif->deflink.ap_sta_id); 2756 if (ret) 2757 IWL_ERR(mvm, 2758 "failed to remove AP station\n"); 2759 2760 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2761 } 2762 2763 /* remove quota for this interface */ 2764 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2765 if (ret) 2766 IWL_ERR(mvm, "failed to update quotas\n"); 2767 2768 /* this will take the cleared BSSID from bss_conf */ 2769 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2770 if (ret) 2771 IWL_ERR(mvm, 2772 "failed to update MAC %pM (clear after unassoc)\n", 2773 vif->addr); 2774 } 2775 2776 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2777 } 2778 2779 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2780 changes); 2781 } 2782 2783 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2784 struct ieee80211_vif *vif, 2785 int *ret) 2786 { 2787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2788 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2789 int i; 2790 2791 lockdep_assert_held(&mvm->mutex); 2792 2793 mvmvif->ap_assoc_sta_count = 0; 2794 2795 /* must be set before quota calculations */ 2796 mvmvif->ap_ibss_active = true; 2797 2798 /* send all the early keys to the device now */ 2799 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2800 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2801 2802 if (!key) 2803 continue; 2804 2805 mvmvif->ap_early_keys[i] = NULL; 2806 2807 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2808 if (*ret) 2809 return true; 2810 } 2811 2812 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2813 iwl_mvm_vif_set_low_latency(mvmvif, true, 2814 LOW_LATENCY_VIF_TYPE); 2815 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2816 } 2817 2818 /* power updated needs to be done before quotas */ 2819 iwl_mvm_power_update_mac(mvm); 2820 2821 return false; 2822 } 2823 2824 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2825 struct ieee80211_vif *vif, 2826 struct ieee80211_bss_conf *link_conf) 2827 { 2828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2829 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2830 int ret; 2831 2832 mutex_lock(&mvm->mutex); 2833 2834 /* 2835 * Re-calculate the tsf id, as the leader-follower relations depend on 2836 * the beacon interval, which was not known when the AP interface 2837 * was added. 2838 */ 2839 if (vif->type == NL80211_IFTYPE_AP) 2840 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2841 2842 /* For older devices need to send beacon template before adding mac 2843 * context. For the newer, the beacon is a resource that belongs to a 2844 * MAC, so need to send beacon template after adding the mac. 2845 */ 2846 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2847 /* Add the mac context */ 2848 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2849 if (ret) 2850 goto out_unlock; 2851 2852 /* Send the beacon template */ 2853 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2854 if (ret) 2855 goto out_unlock; 2856 } else { 2857 /* Send the beacon template */ 2858 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2859 if (ret) 2860 goto out_unlock; 2861 2862 /* Add the mac context */ 2863 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2864 if (ret) 2865 goto out_unlock; 2866 } 2867 2868 /* Perform the binding */ 2869 ret = iwl_mvm_binding_add_vif(mvm, vif); 2870 if (ret) 2871 goto out_remove; 2872 2873 /* 2874 * This is not very nice, but the simplest: 2875 * For older FWs adding the mcast sta before the bcast station may 2876 * cause assert 0x2b00. 2877 * This is fixed in later FW so make the order of removal depend on 2878 * the TLV 2879 */ 2880 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2881 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2882 if (ret) 2883 goto out_unbind; 2884 /* 2885 * Send the bcast station. At this stage the TBTT and DTIM time 2886 * events are added and applied to the scheduler 2887 */ 2888 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2889 if (ret) { 2890 iwl_mvm_rm_mcast_sta(mvm, vif); 2891 goto out_unbind; 2892 } 2893 } else { 2894 /* 2895 * Send the bcast station. At this stage the TBTT and DTIM time 2896 * events are added and applied to the scheduler 2897 */ 2898 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2899 if (ret) 2900 goto out_unbind; 2901 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2902 if (ret) { 2903 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2904 goto out_unbind; 2905 } 2906 } 2907 2908 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2909 goto out_failed; 2910 2911 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2912 if (ret) 2913 goto out_failed; 2914 2915 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2916 if (vif->p2p && mvm->p2p_device_vif) 2917 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2918 2919 iwl_mvm_bt_coex_vif_change(mvm); 2920 2921 /* we don't support TDLS during DCM */ 2922 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2923 iwl_mvm_teardown_tdls_peers(mvm); 2924 2925 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2926 2927 goto out_unlock; 2928 2929 out_failed: 2930 iwl_mvm_power_update_mac(mvm); 2931 mvmvif->ap_ibss_active = false; 2932 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2933 iwl_mvm_rm_mcast_sta(mvm, vif); 2934 out_unbind: 2935 iwl_mvm_binding_remove_vif(mvm, vif); 2936 out_remove: 2937 iwl_mvm_mac_ctxt_remove(mvm, vif); 2938 out_unlock: 2939 mutex_unlock(&mvm->mutex); 2940 return ret; 2941 } 2942 2943 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2944 struct ieee80211_vif *vif, 2945 struct ieee80211_bss_conf *link_conf) 2946 { 2947 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2948 } 2949 2950 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2951 struct ieee80211_vif *vif) 2952 { 2953 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2954 } 2955 2956 /* Common part for MLD and non-MLD ops */ 2957 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2958 struct ieee80211_vif *vif) 2959 { 2960 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2961 2962 lockdep_assert_held(&mvm->mutex); 2963 2964 iwl_mvm_prepare_mac_removal(mvm, vif); 2965 2966 /* Handle AP stop while in CSA */ 2967 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2968 iwl_mvm_remove_time_event(mvm, mvmvif, 2969 &mvmvif->time_event_data); 2970 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2971 mvmvif->csa_countdown = false; 2972 } 2973 2974 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2975 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2976 mvm->csa_tx_block_bcn_timeout = 0; 2977 } 2978 2979 mvmvif->ap_ibss_active = false; 2980 mvm->ap_last_beacon_gp2 = 0; 2981 2982 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2983 iwl_mvm_vif_set_low_latency(mvmvif, false, 2984 LOW_LATENCY_VIF_TYPE); 2985 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2986 } 2987 2988 iwl_mvm_bt_coex_vif_change(mvm); 2989 } 2990 2991 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2992 struct ieee80211_vif *vif, 2993 struct ieee80211_bss_conf *link_conf) 2994 { 2995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2996 2997 mutex_lock(&mvm->mutex); 2998 2999 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3000 3001 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3002 if (vif->p2p && mvm->p2p_device_vif) 3003 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3004 3005 iwl_mvm_update_quotas(mvm, false, NULL); 3006 3007 iwl_mvm_ftm_responder_clear(mvm, vif); 3008 3009 /* 3010 * This is not very nice, but the simplest: 3011 * For older FWs removing the mcast sta before the bcast station may 3012 * cause assert 0x2b00. 3013 * This is fixed in later FW (which will stop beaconing when removing 3014 * bcast station). 3015 * So make the order of removal depend on the TLV 3016 */ 3017 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3018 iwl_mvm_rm_mcast_sta(mvm, vif); 3019 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3020 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3021 iwl_mvm_rm_mcast_sta(mvm, vif); 3022 iwl_mvm_binding_remove_vif(mvm, vif); 3023 3024 iwl_mvm_power_update_mac(mvm); 3025 3026 iwl_mvm_mac_ctxt_remove(mvm, vif); 3027 3028 mutex_unlock(&mvm->mutex); 3029 } 3030 3031 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3032 struct ieee80211_vif *vif, 3033 struct ieee80211_bss_conf *link_conf) 3034 { 3035 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3036 } 3037 3038 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3039 struct ieee80211_vif *vif) 3040 { 3041 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3042 } 3043 3044 static void 3045 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3046 struct ieee80211_vif *vif, 3047 struct ieee80211_bss_conf *bss_conf, 3048 u64 changes) 3049 { 3050 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3051 3052 /* Changes will be applied when the AP/IBSS is started */ 3053 if (!mvmvif->ap_ibss_active) 3054 return; 3055 3056 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3057 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3058 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3059 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3060 3061 /* Need to send a new beacon template to the FW */ 3062 if (changes & BSS_CHANGED_BEACON && 3063 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3064 IWL_WARN(mvm, "Failed updating beacon data\n"); 3065 3066 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3067 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3068 3069 if (ret) 3070 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3071 ret); 3072 } 3073 3074 } 3075 3076 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3077 struct ieee80211_vif *vif, 3078 struct ieee80211_bss_conf *bss_conf, 3079 u64 changes) 3080 { 3081 static const struct iwl_mvm_bss_info_changed_ops callbacks = { 3082 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3083 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3084 }; 3085 3086 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3087 changes); 3088 } 3089 3090 void 3091 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3092 struct ieee80211_vif *vif, 3093 struct ieee80211_bss_conf *bss_conf, 3094 const struct iwl_mvm_bss_info_changed_ops *callbacks, 3095 u64 changes) 3096 { 3097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3098 3099 mutex_lock(&mvm->mutex); 3100 3101 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3102 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3103 3104 switch (vif->type) { 3105 case NL80211_IFTYPE_STATION: 3106 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3107 break; 3108 case NL80211_IFTYPE_AP: 3109 case NL80211_IFTYPE_ADHOC: 3110 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3111 changes); 3112 break; 3113 case NL80211_IFTYPE_MONITOR: 3114 if (changes & BSS_CHANGED_MU_GROUPS) 3115 iwl_mvm_update_mu_groups(mvm, vif); 3116 break; 3117 default: 3118 /* shouldn't happen */ 3119 WARN_ON_ONCE(1); 3120 } 3121 3122 if (changes & BSS_CHANGED_TXPOWER) { 3123 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3124 bss_conf->txpower); 3125 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3126 } 3127 3128 mutex_unlock(&mvm->mutex); 3129 } 3130 3131 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3132 struct ieee80211_scan_request *hw_req) 3133 { 3134 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3135 int ret; 3136 3137 if (hw_req->req.n_channels == 0 || 3138 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3139 return -EINVAL; 3140 3141 mutex_lock(&mvm->mutex); 3142 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3143 mutex_unlock(&mvm->mutex); 3144 3145 return ret; 3146 } 3147 3148 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3149 struct ieee80211_vif *vif) 3150 { 3151 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3152 3153 mutex_lock(&mvm->mutex); 3154 3155 /* Due to a race condition, it's possible that mac80211 asks 3156 * us to stop a hw_scan when it's already stopped. This can 3157 * happen, for instance, if we stopped the scan ourselves, 3158 * called ieee80211_scan_completed() and the userspace called 3159 * cancel scan scan before ieee80211_scan_work() could run. 3160 * To handle that, simply return if the scan is not running. 3161 */ 3162 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3163 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3164 3165 mutex_unlock(&mvm->mutex); 3166 } 3167 3168 void 3169 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3170 struct ieee80211_sta *sta, u16 tids, 3171 int num_frames, 3172 enum ieee80211_frame_release_type reason, 3173 bool more_data) 3174 { 3175 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3176 3177 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3178 3179 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3180 tids, more_data, false); 3181 } 3182 3183 void 3184 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3185 struct ieee80211_sta *sta, u16 tids, 3186 int num_frames, 3187 enum ieee80211_frame_release_type reason, 3188 bool more_data) 3189 { 3190 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3191 3192 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3193 3194 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3195 tids, more_data, true); 3196 } 3197 3198 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3199 enum sta_notify_cmd cmd, 3200 struct ieee80211_sta *sta) 3201 { 3202 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3203 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3204 unsigned long txqs = 0, tids = 0; 3205 int tid; 3206 3207 /* 3208 * If we have TVQM then we get too high queue numbers - luckily 3209 * we really shouldn't get here with that because such hardware 3210 * should have firmware supporting buffer station offload. 3211 */ 3212 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3213 return; 3214 3215 spin_lock_bh(&mvmsta->lock); 3216 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3217 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3218 3219 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3220 continue; 3221 3222 __set_bit(tid_data->txq_id, &txqs); 3223 3224 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3225 continue; 3226 3227 __set_bit(tid, &tids); 3228 } 3229 3230 switch (cmd) { 3231 case STA_NOTIFY_SLEEP: 3232 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3233 ieee80211_sta_set_buffered(sta, tid, true); 3234 3235 if (txqs) 3236 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3237 /* 3238 * The fw updates the STA to be asleep. Tx packets on the Tx 3239 * queues to this station will not be transmitted. The fw will 3240 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3241 */ 3242 break; 3243 case STA_NOTIFY_AWAKE: 3244 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3245 break; 3246 3247 if (txqs) 3248 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3249 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3250 break; 3251 default: 3252 break; 3253 } 3254 spin_unlock_bh(&mvmsta->lock); 3255 } 3256 3257 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3258 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3259 { 3260 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3261 } 3262 3263 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3264 { 3265 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3266 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3267 struct ieee80211_sta *sta; 3268 struct iwl_mvm_sta *mvmsta; 3269 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3270 3271 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3272 return; 3273 3274 rcu_read_lock(); 3275 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3276 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3277 rcu_read_unlock(); 3278 return; 3279 } 3280 3281 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3282 3283 if (!mvmsta->vif || 3284 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3285 rcu_read_unlock(); 3286 return; 3287 } 3288 3289 if (mvmsta->sleeping != sleeping) { 3290 mvmsta->sleeping = sleeping; 3291 __iwl_mvm_mac_sta_notify(mvm->hw, 3292 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3293 sta); 3294 ieee80211_sta_ps_transition(sta, sleeping); 3295 } 3296 3297 if (sleeping) { 3298 switch (notif->type) { 3299 case IWL_MVM_PM_EVENT_AWAKE: 3300 case IWL_MVM_PM_EVENT_ASLEEP: 3301 break; 3302 case IWL_MVM_PM_EVENT_UAPSD: 3303 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3304 break; 3305 case IWL_MVM_PM_EVENT_PS_POLL: 3306 ieee80211_sta_pspoll(sta); 3307 break; 3308 default: 3309 break; 3310 } 3311 } 3312 3313 rcu_read_unlock(); 3314 } 3315 3316 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3317 struct ieee80211_vif *vif, 3318 struct ieee80211_sta *sta) 3319 { 3320 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3321 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3322 unsigned int link_id; 3323 3324 /* 3325 * This is called before mac80211 does RCU synchronisation, 3326 * so here we already invalidate our internal RCU-protected 3327 * station pointer. The rest of the code will thus no longer 3328 * be able to find the station this way, and we don't rely 3329 * on further RCU synchronisation after the sta_state() 3330 * callback deleted the station. 3331 * Since there's mvm->mutex here, no need to have RCU lock for 3332 * mvm_sta->link access. 3333 */ 3334 mutex_lock(&mvm->mutex); 3335 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3336 struct iwl_mvm_link_sta *link_sta; 3337 u32 sta_id; 3338 3339 if (!mvm_sta->link[link_id]) 3340 continue; 3341 3342 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3343 lockdep_is_held(&mvm->mutex)); 3344 sta_id = link_sta->sta_id; 3345 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3346 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3347 ERR_PTR(-ENOENT)); 3348 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3349 } 3350 } 3351 mutex_unlock(&mvm->mutex); 3352 } 3353 3354 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3355 const u8 *bssid) 3356 { 3357 int i; 3358 3359 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3360 struct iwl_mvm_tcm_mac *mdata; 3361 3362 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3363 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3364 mdata->opened_rx_ba_sessions = false; 3365 } 3366 3367 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3368 return; 3369 3370 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3371 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3372 return; 3373 } 3374 3375 if (!vif->p2p && 3376 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3377 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3378 return; 3379 } 3380 3381 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3382 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3383 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3384 return; 3385 } 3386 } 3387 3388 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3389 } 3390 3391 static void 3392 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3393 struct ieee80211_vif *vif, u8 *peer_addr, 3394 enum nl80211_tdls_operation action) 3395 { 3396 struct iwl_fw_dbg_trigger_tlv *trig; 3397 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3398 3399 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3400 FW_DBG_TRIGGER_TDLS); 3401 if (!trig) 3402 return; 3403 3404 tdls_trig = (void *)trig->data; 3405 3406 if (!(tdls_trig->action_bitmap & BIT(action))) 3407 return; 3408 3409 if (tdls_trig->peer_mode && 3410 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3411 return; 3412 3413 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3414 "TDLS event occurred, peer %pM, action %d", 3415 peer_addr, action); 3416 } 3417 3418 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3419 bool tolerated; 3420 }; 3421 3422 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3423 struct cfg80211_bss *bss, 3424 void *_data) 3425 { 3426 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3427 const struct cfg80211_bss_ies *ies; 3428 const struct element *elem; 3429 3430 rcu_read_lock(); 3431 ies = rcu_dereference(bss->ies); 3432 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3433 ies->len); 3434 3435 if (!elem || elem->datalen < 10 || 3436 !(elem->data[10] & 3437 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3438 data->tolerated = false; 3439 } 3440 rcu_read_unlock(); 3441 } 3442 3443 static void 3444 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3445 struct ieee80211_vif *vif, 3446 unsigned int link_id, 3447 struct ieee80211_bss_conf *link_conf) 3448 { 3449 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3450 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3451 .tolerated = true, 3452 }; 3453 3454 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3455 !mvmvif->link[link_id])) 3456 return; 3457 3458 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3459 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3460 return; 3461 } 3462 3463 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3464 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3465 &iter_data); 3466 3467 /* 3468 * If there is at least one AP on radar channel that cannot 3469 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3470 */ 3471 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3472 } 3473 3474 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3475 struct ieee80211_vif *vif) 3476 { 3477 struct ieee80211_supported_band *sband; 3478 const struct ieee80211_sta_he_cap *he_cap; 3479 3480 if (vif->type != NL80211_IFTYPE_STATION) 3481 return; 3482 3483 if (!mvm->cca_40mhz_workaround) 3484 return; 3485 3486 /* decrement and check that we reached zero */ 3487 mvm->cca_40mhz_workaround--; 3488 if (mvm->cca_40mhz_workaround) 3489 return; 3490 3491 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3492 3493 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3494 3495 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3496 3497 if (he_cap) { 3498 /* we know that ours is writable */ 3499 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3500 3501 he->he_cap_elem.phy_cap_info[0] |= 3502 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3503 } 3504 } 3505 3506 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3507 struct ieee80211_vif *vif, 3508 struct iwl_mvm_sta *mvm_sta) 3509 { 3510 #if IS_ENABLED(CONFIG_IWLMEI) 3511 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3512 struct iwl_mei_conn_info conn_info = { 3513 .ssid_len = vif->cfg.ssid_len, 3514 }; 3515 3516 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3517 return; 3518 3519 if (!mvm->mei_registered) 3520 return; 3521 3522 /* FIXME: MEI needs to be updated for MLO */ 3523 if (!vif->bss_conf.chandef.chan) 3524 return; 3525 3526 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3527 3528 switch (mvm_sta->pairwise_cipher) { 3529 case WLAN_CIPHER_SUITE_TKIP: 3530 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3531 break; 3532 case WLAN_CIPHER_SUITE_CCMP: 3533 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3534 break; 3535 case WLAN_CIPHER_SUITE_GCMP: 3536 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3537 break; 3538 case WLAN_CIPHER_SUITE_GCMP_256: 3539 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3540 break; 3541 case 0: 3542 /* open profile */ 3543 break; 3544 default: 3545 /* cipher not supported, don't send anything to iwlmei */ 3546 return; 3547 } 3548 3549 switch (mvmvif->rekey_data.akm) { 3550 case WLAN_AKM_SUITE_SAE & 0xff: 3551 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3552 break; 3553 case WLAN_AKM_SUITE_PSK & 0xff: 3554 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3555 break; 3556 case WLAN_AKM_SUITE_8021X & 0xff: 3557 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3558 break; 3559 case 0: 3560 /* open profile */ 3561 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3562 break; 3563 default: 3564 /* auth method / AKM not supported */ 3565 /* TODO: All the FT vesions of these? */ 3566 return; 3567 } 3568 3569 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3570 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3571 3572 /* TODO: add support for collocated AP data */ 3573 iwl_mei_host_associated(&conn_info, NULL); 3574 #endif 3575 } 3576 3577 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3578 struct ieee80211_vif *vif, 3579 bool force_assoc_off) 3580 { 3581 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3582 } 3583 3584 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3585 struct ieee80211_vif *vif, 3586 struct ieee80211_sta *sta, 3587 enum ieee80211_sta_state old_state, 3588 enum ieee80211_sta_state new_state) 3589 { 3590 static const struct iwl_mvm_sta_state_ops callbacks = { 3591 .add_sta = iwl_mvm_add_sta, 3592 .update_sta = iwl_mvm_update_sta, 3593 .rm_sta = iwl_mvm_rm_sta, 3594 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3595 }; 3596 3597 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3598 &callbacks); 3599 } 3600 3601 /* FIXME: temporary making two assumptions in all sta handling functions: 3602 * (1) when setting sta state, the link exists and protected 3603 * (2) if a link is valid in sta then it's valid in vif (can 3604 * use same index in the link array) 3605 */ 3606 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3607 struct ieee80211_vif *vif, 3608 struct ieee80211_sta *sta) 3609 { 3610 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3611 unsigned int link_id; 3612 3613 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3614 struct ieee80211_bss_conf *conf = 3615 link_conf_dereference_check(vif, link_id); 3616 struct ieee80211_link_sta *link_sta = 3617 link_sta_dereference_check(sta, link_id); 3618 3619 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3620 continue; 3621 3622 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3623 mvmvif->link[link_id]->phy_ctxt->channel->band); 3624 } 3625 } 3626 3627 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3628 3629 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3630 struct ieee80211_vif *vif, 3631 struct ieee80211_sta *sta) 3632 { 3633 struct ieee80211_link_sta *link_sta; 3634 unsigned int link_id; 3635 3636 /* Beacon interval check - firmware will crash if the beacon 3637 * interval is less than 16. We can't avoid connecting at all, 3638 * so refuse the station state change, this will cause mac80211 3639 * to abandon attempts to connect to this AP, and eventually 3640 * wpa_s will blocklist the AP... 3641 */ 3642 3643 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3644 struct ieee80211_bss_conf *link_conf = 3645 link_conf_dereference_protected(vif, link_id); 3646 3647 if (!link_conf) 3648 continue; 3649 3650 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3651 IWL_ERR(mvm, 3652 "Beacon interval %d for AP %pM is too small\n", 3653 link_conf->beacon_int, link_sta->addr); 3654 return false; 3655 } 3656 3657 link_conf->he_support = link_sta->he_cap.has_he; 3658 } 3659 3660 return true; 3661 } 3662 3663 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3664 struct ieee80211_vif *vif, 3665 struct ieee80211_sta *sta, 3666 bool is_sta) 3667 { 3668 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3669 struct ieee80211_link_sta *link_sta; 3670 unsigned int link_id; 3671 3672 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3673 struct ieee80211_bss_conf *link_conf = 3674 link_conf_dereference_protected(vif, link_id); 3675 3676 if (!link_conf || !mvmvif->link[link_id]) 3677 continue; 3678 3679 link_conf->he_support = link_sta->he_cap.has_he; 3680 3681 if (is_sta) { 3682 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3683 if (link_sta->he_cap.has_he) 3684 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3685 link_id, 3686 link_conf); 3687 } 3688 } 3689 } 3690 3691 static int 3692 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3693 struct ieee80211_vif *vif, 3694 struct ieee80211_sta *sta, 3695 const struct iwl_mvm_sta_state_ops *callbacks) 3696 { 3697 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3698 struct ieee80211_link_sta *link_sta; 3699 unsigned int i; 3700 int ret; 3701 3702 lockdep_assert_held(&mvm->mutex); 3703 3704 if (vif->type == NL80211_IFTYPE_STATION && 3705 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3706 return -EINVAL; 3707 3708 if (sta->tdls && 3709 (vif->p2p || 3710 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3711 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3712 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3713 return -EBUSY; 3714 } 3715 3716 ret = callbacks->add_sta(mvm, vif, sta); 3717 if (sta->tdls && ret == 0) { 3718 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3719 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3720 NL80211_TDLS_SETUP); 3721 } 3722 3723 if (ret) 3724 return ret; 3725 3726 for_each_sta_active_link(vif, sta, link_sta, i) 3727 link_sta->agg.max_rc_amsdu_len = 1; 3728 3729 ieee80211_sta_recalc_aggregates(sta); 3730 3731 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3732 mvmvif->ap_sta = sta; 3733 3734 /* 3735 * Initialize the rates here already - this really tells 3736 * the firmware only what the supported legacy rates are 3737 * (may be) since it's initialized already from what the 3738 * AP advertised in the beacon/probe response. This will 3739 * allow the firmware to send auth/assoc frames with one 3740 * of the supported rates already, rather than having to 3741 * use a mandatory rate. 3742 * If we're the AP, we'll just assume mandatory rates at 3743 * this point, but we know nothing about the STA anyway. 3744 */ 3745 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3746 3747 return 0; 3748 } 3749 3750 static int 3751 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3752 struct iwl_mvm *mvm, 3753 struct ieee80211_vif *vif, 3754 struct ieee80211_sta *sta, 3755 const struct iwl_mvm_sta_state_ops *callbacks) 3756 { 3757 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3758 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3759 struct ieee80211_link_sta *link_sta; 3760 unsigned int link_id; 3761 3762 lockdep_assert_held(&mvm->mutex); 3763 3764 if (vif->type == NL80211_IFTYPE_AP) { 3765 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3766 mvmvif->ap_assoc_sta_count++; 3767 callbacks->mac_ctxt_changed(mvm, vif, false); 3768 3769 /* since the below is not for MLD API, it's ok to use 3770 * the default bss_conf 3771 */ 3772 if (!mvm->mld_api_is_used && 3773 ((vif->bss_conf.he_support && 3774 !iwlwifi_mod_params.disable_11ax) || 3775 (vif->bss_conf.eht_support && 3776 !iwlwifi_mod_params.disable_11be))) 3777 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3778 } else if (vif->type == NL80211_IFTYPE_STATION) { 3779 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3780 3781 callbacks->mac_ctxt_changed(mvm, vif, false); 3782 3783 if (!mvm->mld_api_is_used) 3784 goto out; 3785 3786 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3787 struct ieee80211_bss_conf *link_conf = 3788 link_conf_dereference_protected(vif, link_id); 3789 3790 if (WARN_ON(!link_conf)) 3791 return -EINVAL; 3792 if (!mvmvif->link[link_id]) 3793 continue; 3794 3795 iwl_mvm_link_changed(mvm, vif, link_conf, 3796 LINK_CONTEXT_MODIFY_ALL & 3797 ~LINK_CONTEXT_MODIFY_ACTIVE, 3798 true); 3799 } 3800 } 3801 3802 out: 3803 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3804 3805 return callbacks->update_sta(mvm, vif, sta); 3806 } 3807 3808 static int 3809 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3810 struct ieee80211_vif *vif, 3811 struct ieee80211_sta *sta, 3812 const struct iwl_mvm_sta_state_ops *callbacks) 3813 { 3814 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3815 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3816 3817 lockdep_assert_held(&mvm->mutex); 3818 3819 /* we don't support TDLS during DCM */ 3820 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3821 iwl_mvm_teardown_tdls_peers(mvm); 3822 3823 if (sta->tdls) { 3824 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3825 NL80211_TDLS_ENABLE_LINK); 3826 } else { 3827 /* enable beacon filtering */ 3828 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3829 3830 mvmvif->authorized = 1; 3831 3832 callbacks->mac_ctxt_changed(mvm, vif, false); 3833 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3834 } 3835 3836 mvm_sta->authorized = true; 3837 3838 /* MFP is set by default before the station is authorized. 3839 * Clear it here in case it's not used. 3840 */ 3841 if (!sta->mfp) { 3842 int ret = callbacks->update_sta(mvm, vif, sta); 3843 3844 if (ret) 3845 return ret; 3846 } 3847 3848 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3849 3850 return 0; 3851 } 3852 3853 static int 3854 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3855 struct ieee80211_vif *vif, 3856 struct ieee80211_sta *sta, 3857 const struct iwl_mvm_sta_state_ops *callbacks) 3858 { 3859 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3860 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3861 3862 lockdep_assert_held(&mvm->mutex); 3863 3864 mvmsta->authorized = false; 3865 3866 /* once we move into assoc state, need to update rate scale to 3867 * disable using wide bandwidth 3868 */ 3869 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3870 3871 if (!sta->tdls) { 3872 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3873 * yet to avoid sending high prio again for a little 3874 * time. 3875 */ 3876 mvmvif->authorized = 0; 3877 3878 /* disable beacon filtering */ 3879 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3880 } 3881 3882 return 0; 3883 } 3884 3885 /* Common part for MLD and non-MLD modes */ 3886 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3887 struct ieee80211_vif *vif, 3888 struct ieee80211_sta *sta, 3889 enum ieee80211_sta_state old_state, 3890 enum ieee80211_sta_state new_state, 3891 const struct iwl_mvm_sta_state_ops *callbacks) 3892 { 3893 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3894 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3895 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3896 struct ieee80211_link_sta *link_sta; 3897 unsigned int link_id; 3898 int ret; 3899 3900 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3901 sta->addr, old_state, new_state); 3902 3903 /* 3904 * If we are in a STA removal flow and in DQA mode: 3905 * 3906 * This is after the sync_rcu part, so the queues have already been 3907 * flushed. No more TXs on their way in mac80211's path, and no more in 3908 * the queues. 3909 * Also, we won't be getting any new TX frames for this station. 3910 * What we might have are deferred TX frames that need to be taken care 3911 * of. 3912 * 3913 * Drop any still-queued deferred-frame before removing the STA, and 3914 * make sure the worker is no longer handling frames for this STA. 3915 */ 3916 if (old_state == IEEE80211_STA_NONE && 3917 new_state == IEEE80211_STA_NOTEXIST) { 3918 flush_work(&mvm->add_stream_wk); 3919 3920 /* 3921 * No need to make sure deferred TX indication is off since the 3922 * worker will already remove it if it was on 3923 */ 3924 3925 /* 3926 * Additionally, reset the 40 MHz capability if we disconnected 3927 * from the AP now. 3928 */ 3929 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3930 3931 /* Also free dup data just in case any assertions below fail */ 3932 kfree(mvm_sta->dup_data); 3933 } 3934 3935 mutex_lock(&mvm->mutex); 3936 3937 /* this would be a mac80211 bug ... but don't crash */ 3938 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3939 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3940 mutex_unlock(&mvm->mutex); 3941 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3942 &mvm->status) ? 0 : -EINVAL; 3943 } 3944 } 3945 3946 /* track whether or not the station is associated */ 3947 mvm_sta->sta_state = new_state; 3948 3949 if (old_state == IEEE80211_STA_NOTEXIST && 3950 new_state == IEEE80211_STA_NONE) { 3951 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3952 callbacks); 3953 if (ret < 0) 3954 goto out_unlock; 3955 } else if (old_state == IEEE80211_STA_NONE && 3956 new_state == IEEE80211_STA_AUTH) { 3957 /* 3958 * EBS may be disabled due to previous failures reported by FW. 3959 * Reset EBS status here assuming environment has been changed. 3960 */ 3961 mvm->last_ebs_successful = true; 3962 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3963 ret = 0; 3964 } else if (old_state == IEEE80211_STA_AUTH && 3965 new_state == IEEE80211_STA_ASSOC) { 3966 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3967 callbacks); 3968 } else if (old_state == IEEE80211_STA_ASSOC && 3969 new_state == IEEE80211_STA_AUTHORIZED) { 3970 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3971 callbacks); 3972 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3973 new_state == IEEE80211_STA_ASSOC) { 3974 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3975 callbacks); 3976 } else if (old_state == IEEE80211_STA_ASSOC && 3977 new_state == IEEE80211_STA_AUTH) { 3978 if (vif->type == NL80211_IFTYPE_AP) { 3979 mvmvif->ap_assoc_sta_count--; 3980 callbacks->mac_ctxt_changed(mvm, vif, false); 3981 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3982 iwl_mvm_stop_session_protection(mvm, vif); 3983 ret = 0; 3984 } else if (old_state == IEEE80211_STA_AUTH && 3985 new_state == IEEE80211_STA_NONE) { 3986 ret = 0; 3987 } else if (old_state == IEEE80211_STA_NONE && 3988 new_state == IEEE80211_STA_NOTEXIST) { 3989 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3990 iwl_mvm_stop_session_protection(mvm, vif); 3991 mvmvif->ap_sta = NULL; 3992 } 3993 ret = callbacks->rm_sta(mvm, vif, sta); 3994 if (sta->tdls) { 3995 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3996 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3997 NL80211_TDLS_DISABLE_LINK); 3998 } 3999 4000 if (unlikely(ret && 4001 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4002 &mvm->status))) 4003 ret = 0; 4004 } else { 4005 ret = -EIO; 4006 } 4007 out_unlock: 4008 mutex_unlock(&mvm->mutex); 4009 4010 if (sta->tdls && ret == 0) { 4011 if (old_state == IEEE80211_STA_NOTEXIST && 4012 new_state == IEEE80211_STA_NONE) 4013 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4014 else if (old_state == IEEE80211_STA_NONE && 4015 new_state == IEEE80211_STA_NOTEXIST) 4016 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4017 } 4018 4019 return ret; 4020 } 4021 4022 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4023 { 4024 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4025 4026 mvm->rts_threshold = value; 4027 4028 return 0; 4029 } 4030 4031 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4032 struct ieee80211_sta *sta, u32 changed) 4033 { 4034 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4035 4036 if (changed & (IEEE80211_RC_BW_CHANGED | 4037 IEEE80211_RC_SUPP_RATES_CHANGED | 4038 IEEE80211_RC_NSS_CHANGED)) 4039 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4040 4041 if (vif->type == NL80211_IFTYPE_STATION && 4042 changed & IEEE80211_RC_NSS_CHANGED) 4043 iwl_mvm_sf_update(mvm, vif, false); 4044 } 4045 4046 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4047 struct ieee80211_vif *vif, 4048 unsigned int link_id, u16 ac, 4049 const struct ieee80211_tx_queue_params *params) 4050 { 4051 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4052 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4053 4054 mvmvif->deflink.queue_params[ac] = *params; 4055 4056 /* 4057 * No need to update right away, we'll get BSS_CHANGED_QOS 4058 * The exception is P2P_DEVICE interface which needs immediate update. 4059 */ 4060 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4061 int ret; 4062 4063 mutex_lock(&mvm->mutex); 4064 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4065 mutex_unlock(&mvm->mutex); 4066 return ret; 4067 } 4068 return 0; 4069 } 4070 4071 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4072 struct ieee80211_vif *vif, 4073 struct ieee80211_prep_tx_info *info) 4074 { 4075 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4076 4077 mutex_lock(&mvm->mutex); 4078 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4079 mutex_unlock(&mvm->mutex); 4080 } 4081 4082 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4083 struct ieee80211_vif *vif, 4084 struct ieee80211_prep_tx_info *info) 4085 { 4086 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4087 4088 /* for successful cases (auth/assoc), don't cancel session protection */ 4089 if (info->success) 4090 return; 4091 4092 mutex_lock(&mvm->mutex); 4093 iwl_mvm_stop_session_protection(mvm, vif); 4094 mutex_unlock(&mvm->mutex); 4095 } 4096 4097 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4098 struct ieee80211_vif *vif, 4099 struct cfg80211_sched_scan_request *req, 4100 struct ieee80211_scan_ies *ies) 4101 { 4102 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4103 4104 int ret; 4105 4106 mutex_lock(&mvm->mutex); 4107 4108 if (!vif->cfg.idle) { 4109 ret = -EBUSY; 4110 goto out; 4111 } 4112 4113 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4114 4115 out: 4116 mutex_unlock(&mvm->mutex); 4117 return ret; 4118 } 4119 4120 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4121 struct ieee80211_vif *vif) 4122 { 4123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4124 int ret; 4125 4126 mutex_lock(&mvm->mutex); 4127 4128 /* Due to a race condition, it's possible that mac80211 asks 4129 * us to stop a sched_scan when it's already stopped. This 4130 * can happen, for instance, if we stopped the scan ourselves, 4131 * called ieee80211_sched_scan_stopped() and the userspace called 4132 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4133 * could run. To handle this, simply return if the scan is 4134 * not running. 4135 */ 4136 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4137 mutex_unlock(&mvm->mutex); 4138 return 0; 4139 } 4140 4141 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4142 mutex_unlock(&mvm->mutex); 4143 iwl_mvm_wait_for_async_handlers(mvm); 4144 4145 return ret; 4146 } 4147 4148 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4149 enum set_key_cmd cmd, 4150 struct ieee80211_vif *vif, 4151 struct ieee80211_sta *sta, 4152 struct ieee80211_key_conf *key) 4153 { 4154 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4155 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4156 struct iwl_mvm_sta *mvmsta = NULL; 4157 struct iwl_mvm_key_pn *ptk_pn = NULL; 4158 int keyidx = key->keyidx; 4159 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4160 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4161 int ret, i; 4162 u8 key_offset; 4163 4164 if (sta) 4165 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4166 4167 switch (key->cipher) { 4168 case WLAN_CIPHER_SUITE_TKIP: 4169 if (!mvm->trans->trans_cfg->gen2) { 4170 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4171 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4172 } else if (vif->type == NL80211_IFTYPE_STATION) { 4173 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4174 } else { 4175 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4176 return -EOPNOTSUPP; 4177 } 4178 break; 4179 case WLAN_CIPHER_SUITE_CCMP: 4180 case WLAN_CIPHER_SUITE_GCMP: 4181 case WLAN_CIPHER_SUITE_GCMP_256: 4182 if (!iwl_mvm_has_new_tx_api(mvm)) 4183 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4184 break; 4185 case WLAN_CIPHER_SUITE_AES_CMAC: 4186 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4187 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4188 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4189 break; 4190 case WLAN_CIPHER_SUITE_WEP40: 4191 case WLAN_CIPHER_SUITE_WEP104: 4192 if (vif->type == NL80211_IFTYPE_STATION) 4193 break; 4194 if (iwl_mvm_has_new_tx_api(mvm)) 4195 return -EOPNOTSUPP; 4196 /* support HW crypto on TX */ 4197 return 0; 4198 default: 4199 return -EOPNOTSUPP; 4200 } 4201 4202 switch (cmd) { 4203 case SET_KEY: 4204 if (vif->type == NL80211_IFTYPE_STATION && 4205 (keyidx == 6 || keyidx == 7)) 4206 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4207 key); 4208 4209 if ((vif->type == NL80211_IFTYPE_ADHOC || 4210 vif->type == NL80211_IFTYPE_AP) && !sta) { 4211 /* 4212 * GTK on AP interface is a TX-only key, return 0; 4213 * on IBSS they're per-station and because we're lazy 4214 * we don't support them for RX, so do the same. 4215 * CMAC/GMAC in AP/IBSS modes must be done in software. 4216 * 4217 * Except, of course, beacon protection - it must be 4218 * offloaded since we just set a beacon template. 4219 */ 4220 if (keyidx < 6 && 4221 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4222 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4223 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4224 ret = -EOPNOTSUPP; 4225 break; 4226 } 4227 4228 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4229 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4230 !iwl_mvm_has_new_tx_api(mvm)) { 4231 key->hw_key_idx = STA_KEY_IDX_INVALID; 4232 ret = 0; 4233 break; 4234 } 4235 4236 if (!mvmvif->ap_ibss_active) { 4237 for (i = 0; 4238 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4239 i++) { 4240 if (!mvmvif->ap_early_keys[i]) { 4241 mvmvif->ap_early_keys[i] = key; 4242 break; 4243 } 4244 } 4245 4246 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4247 ret = -ENOSPC; 4248 else 4249 ret = 0; 4250 4251 break; 4252 } 4253 } 4254 4255 /* During FW restart, in order to restore the state as it was, 4256 * don't try to reprogram keys we previously failed for. 4257 */ 4258 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4259 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4260 IWL_DEBUG_MAC80211(mvm, 4261 "skip invalid idx key programming during restart\n"); 4262 ret = 0; 4263 break; 4264 } 4265 4266 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4267 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4268 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4269 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4270 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4271 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4272 struct ieee80211_key_seq seq; 4273 int tid, q; 4274 4275 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4276 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4277 mvm->trans->num_rx_queues), 4278 GFP_KERNEL); 4279 if (!ptk_pn) { 4280 ret = -ENOMEM; 4281 break; 4282 } 4283 4284 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4285 ieee80211_get_key_rx_seq(key, tid, &seq); 4286 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4287 memcpy(ptk_pn->q[q].pn[tid], 4288 seq.ccmp.pn, 4289 IEEE80211_CCMP_PN_LEN); 4290 } 4291 4292 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4293 } 4294 4295 /* in HW restart reuse the index, otherwise request a new one */ 4296 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4297 key_offset = key->hw_key_idx; 4298 else 4299 key_offset = STA_KEY_IDX_INVALID; 4300 4301 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4302 mvmsta->pairwise_cipher = key->cipher; 4303 4304 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4305 sta ? sta->addr : NULL, key->keyidx); 4306 4307 if (sec_key_ver) 4308 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4309 else 4310 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4311 4312 if (ret) { 4313 IWL_WARN(mvm, "set key failed\n"); 4314 key->hw_key_idx = STA_KEY_IDX_INVALID; 4315 if (ptk_pn) { 4316 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4317 kfree(ptk_pn); 4318 } 4319 /* 4320 * can't add key for RX, but we don't need it 4321 * in the device for TX so still return 0, 4322 * unless we have new TX API where we cannot 4323 * put key material into the TX_CMD 4324 */ 4325 if (iwl_mvm_has_new_tx_api(mvm)) 4326 ret = -EOPNOTSUPP; 4327 else 4328 ret = 0; 4329 } 4330 4331 break; 4332 case DISABLE_KEY: 4333 if (vif->type == NL80211_IFTYPE_STATION && 4334 (keyidx == 6 || keyidx == 7)) 4335 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4336 NULL); 4337 4338 ret = -ENOENT; 4339 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4340 if (mvmvif->ap_early_keys[i] == key) { 4341 mvmvif->ap_early_keys[i] = NULL; 4342 ret = 0; 4343 } 4344 } 4345 4346 /* found in pending list - don't do anything else */ 4347 if (ret == 0) 4348 break; 4349 4350 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4351 ret = 0; 4352 break; 4353 } 4354 4355 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4356 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4357 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4358 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4359 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4360 ptk_pn = rcu_dereference_protected( 4361 mvmsta->ptk_pn[keyidx], 4362 lockdep_is_held(&mvm->mutex)); 4363 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4364 if (ptk_pn) 4365 kfree_rcu(ptk_pn, rcu_head); 4366 } 4367 4368 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4369 if (sec_key_ver) 4370 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4371 else 4372 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4373 break; 4374 default: 4375 ret = -EINVAL; 4376 } 4377 4378 return ret; 4379 } 4380 4381 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4382 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4383 struct ieee80211_key_conf *key) 4384 { 4385 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4386 int ret; 4387 4388 mutex_lock(&mvm->mutex); 4389 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4390 mutex_unlock(&mvm->mutex); 4391 4392 return ret; 4393 } 4394 4395 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4396 struct ieee80211_vif *vif, 4397 struct ieee80211_key_conf *keyconf, 4398 struct ieee80211_sta *sta, 4399 u32 iv32, u16 *phase1key) 4400 { 4401 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4402 4403 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4404 return; 4405 4406 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4407 } 4408 4409 4410 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4411 struct iwl_rx_packet *pkt, void *data) 4412 { 4413 struct iwl_mvm *mvm = 4414 container_of(notif_wait, struct iwl_mvm, notif_wait); 4415 struct iwl_hs20_roc_res *resp; 4416 int resp_len = iwl_rx_packet_payload_len(pkt); 4417 struct iwl_mvm_time_event_data *te_data = data; 4418 4419 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4420 return true; 4421 4422 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4423 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4424 return true; 4425 } 4426 4427 resp = (void *)pkt->data; 4428 4429 IWL_DEBUG_TE(mvm, 4430 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4431 resp->status, resp->event_unique_id); 4432 4433 te_data->uid = le32_to_cpu(resp->event_unique_id); 4434 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4435 te_data->uid); 4436 4437 spin_lock_bh(&mvm->time_event_lock); 4438 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4439 spin_unlock_bh(&mvm->time_event_lock); 4440 4441 return true; 4442 } 4443 4444 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4445 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4446 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4447 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4448 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4449 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4450 struct ieee80211_channel *channel, 4451 struct ieee80211_vif *vif, 4452 int duration) 4453 { 4454 int res; 4455 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4456 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4457 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4458 struct iwl_notification_wait wait_time_event; 4459 u32 dtim_interval = vif->bss_conf.dtim_period * 4460 vif->bss_conf.beacon_int; 4461 u32 req_dur, delay; 4462 struct iwl_hs20_roc_req aux_roc_req = { 4463 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4464 .id_and_color = 4465 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4466 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4467 }; 4468 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4469 &aux_roc_req.channel_info); 4470 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4471 4472 /* Set the channel info data */ 4473 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4474 iwl_mvm_phy_band_from_nl80211(channel->band), 4475 IWL_PHY_CHANNEL_MODE20, 4476 0); 4477 4478 /* Set the time and duration */ 4479 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4480 4481 delay = AUX_ROC_MIN_DELAY; 4482 req_dur = MSEC_TO_TU(duration); 4483 4484 /* 4485 * If we are associated we want the delay time to be at least one 4486 * dtim interval so that the FW can wait until after the DTIM and 4487 * then start the time event, this will potentially allow us to 4488 * remain off-channel for the max duration. 4489 * Since we want to use almost a whole dtim interval we would also 4490 * like the delay to be for 2-3 dtim intervals, in case there are 4491 * other time events with higher priority. 4492 */ 4493 if (vif->cfg.assoc) { 4494 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4495 /* We cannot remain off-channel longer than the DTIM interval */ 4496 if (dtim_interval <= req_dur) { 4497 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4498 if (req_dur <= AUX_ROC_MIN_DURATION) 4499 req_dur = dtim_interval - 4500 AUX_ROC_MIN_SAFETY_BUFFER; 4501 } 4502 } 4503 4504 tail->duration = cpu_to_le32(req_dur); 4505 tail->apply_time_max_delay = cpu_to_le32(delay); 4506 4507 IWL_DEBUG_TE(mvm, 4508 "ROC: Requesting to remain on channel %u for %ums\n", 4509 channel->hw_value, req_dur); 4510 IWL_DEBUG_TE(mvm, 4511 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4512 duration, delay, dtim_interval); 4513 4514 /* Set the node address */ 4515 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4516 4517 lockdep_assert_held(&mvm->mutex); 4518 4519 spin_lock_bh(&mvm->time_event_lock); 4520 4521 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4522 spin_unlock_bh(&mvm->time_event_lock); 4523 return -EIO; 4524 } 4525 4526 te_data->vif = vif; 4527 te_data->duration = duration; 4528 te_data->id = HOT_SPOT_CMD; 4529 4530 spin_unlock_bh(&mvm->time_event_lock); 4531 4532 /* 4533 * Use a notification wait, which really just processes the 4534 * command response and doesn't wait for anything, in order 4535 * to be able to process the response and get the UID inside 4536 * the RX path. Using CMD_WANT_SKB doesn't work because it 4537 * stores the buffer and then wakes up this thread, by which 4538 * time another notification (that the time event started) 4539 * might already be processed unsuccessfully. 4540 */ 4541 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4542 time_event_response, 4543 ARRAY_SIZE(time_event_response), 4544 iwl_mvm_rx_aux_roc, te_data); 4545 4546 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4547 &aux_roc_req); 4548 4549 if (res) { 4550 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4551 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4552 goto out_clear_te; 4553 } 4554 4555 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4556 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4557 /* should never fail */ 4558 WARN_ON_ONCE(res); 4559 4560 if (res) { 4561 out_clear_te: 4562 spin_lock_bh(&mvm->time_event_lock); 4563 iwl_mvm_te_clear_data(mvm, te_data); 4564 spin_unlock_bh(&mvm->time_event_lock); 4565 } 4566 4567 return res; 4568 } 4569 4570 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4571 { 4572 int ret = 0; 4573 4574 lockdep_assert_held(&mvm->mutex); 4575 4576 if (!fw_has_capa(&mvm->fw->ucode_capa, 4577 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4578 IWL_ERR(mvm, "hotspot not supported\n"); 4579 return -EINVAL; 4580 } 4581 4582 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4583 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4584 WARN(ret, "Failed to allocate aux station"); 4585 } 4586 4587 return ret; 4588 } 4589 4590 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4591 { 4592 int ret; 4593 4594 lockdep_assert_held(&mvm->mutex); 4595 4596 ret = iwl_mvm_binding_add_vif(mvm, vif); 4597 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4598 return ret; 4599 4600 /* The station and queue allocation must be done only after the binding 4601 * is done, as otherwise the FW might incorrectly configure its state. 4602 */ 4603 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4604 } 4605 4606 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4607 struct ieee80211_vif *vif, 4608 struct ieee80211_channel *channel, 4609 int duration, 4610 enum ieee80211_roc_type type) 4611 { 4612 static const struct iwl_mvm_roc_ops ops = { 4613 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4614 .link = iwl_mvm_roc_link, 4615 }; 4616 4617 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4618 } 4619 4620 /* Execute the common part for MLD and non-MLD modes */ 4621 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4622 struct ieee80211_channel *channel, int duration, 4623 enum ieee80211_roc_type type, 4624 const struct iwl_mvm_roc_ops *ops) 4625 { 4626 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4627 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4628 struct cfg80211_chan_def chandef; 4629 struct iwl_mvm_phy_ctxt *phy_ctxt; 4630 int ret, i; 4631 u32 lmac_id; 4632 4633 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4634 duration, type); 4635 4636 /* 4637 * Flush the done work, just in case it's still pending, so that 4638 * the work it does can complete and we can accept new frames. 4639 */ 4640 flush_work(&mvm->roc_done_wk); 4641 4642 mutex_lock(&mvm->mutex); 4643 4644 switch (vif->type) { 4645 case NL80211_IFTYPE_STATION: 4646 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4647 4648 /* Use aux roc framework (HS20) */ 4649 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4650 if (!ret) 4651 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4652 vif, duration); 4653 goto out_unlock; 4654 case NL80211_IFTYPE_P2P_DEVICE: 4655 /* handle below */ 4656 break; 4657 default: 4658 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4659 ret = -EINVAL; 4660 goto out_unlock; 4661 } 4662 4663 /* Try using a PHY context that is already in use */ 4664 for (i = 0; i < NUM_PHY_CTX; i++) { 4665 phy_ctxt = &mvm->phy_ctxts[i]; 4666 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4667 continue; 4668 4669 if (channel == phy_ctxt->channel) { 4670 if (mvmvif->deflink.phy_ctxt) 4671 iwl_mvm_phy_ctxt_unref(mvm, 4672 mvmvif->deflink.phy_ctxt); 4673 4674 mvmvif->deflink.phy_ctxt = phy_ctxt; 4675 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4676 goto link_and_start_p2p_roc; 4677 } 4678 } 4679 4680 /* If the currently used PHY context is configured with a matching 4681 * channel use it 4682 */ 4683 if (mvmvif->deflink.phy_ctxt) { 4684 if (channel == mvmvif->deflink.phy_ctxt->channel) 4685 goto link_and_start_p2p_roc; 4686 } else { 4687 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4688 if (!phy_ctxt) { 4689 ret = -ENOSPC; 4690 goto out_unlock; 4691 } 4692 4693 mvmvif->deflink.phy_ctxt = phy_ctxt; 4694 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4695 } 4696 4697 /* Configure the PHY context */ 4698 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4699 4700 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4701 1, 1); 4702 if (ret) { 4703 IWL_ERR(mvm, "Failed to change PHY context\n"); 4704 goto out_unlock; 4705 } 4706 4707 link_and_start_p2p_roc: 4708 ret = ops->link(mvm, vif); 4709 if (ret) 4710 goto out_unlock; 4711 4712 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4713 out_unlock: 4714 mutex_unlock(&mvm->mutex); 4715 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4716 return ret; 4717 } 4718 4719 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4720 struct ieee80211_vif *vif) 4721 { 4722 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4723 4724 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4725 4726 mutex_lock(&mvm->mutex); 4727 iwl_mvm_stop_roc(mvm, vif); 4728 mutex_unlock(&mvm->mutex); 4729 4730 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4731 return 0; 4732 } 4733 4734 struct iwl_mvm_ftm_responder_iter_data { 4735 bool responder; 4736 struct ieee80211_chanctx_conf *ctx; 4737 }; 4738 4739 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4740 struct ieee80211_vif *vif) 4741 { 4742 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4743 4744 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4745 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4746 data->responder = true; 4747 } 4748 4749 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4750 struct ieee80211_chanctx_conf *ctx) 4751 { 4752 struct iwl_mvm_ftm_responder_iter_data data = { 4753 .responder = false, 4754 .ctx = ctx, 4755 }; 4756 4757 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4758 IEEE80211_IFACE_ITER_NORMAL, 4759 iwl_mvm_ftm_responder_chanctx_iter, 4760 &data); 4761 return data.responder; 4762 } 4763 4764 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4765 struct ieee80211_chanctx_conf *ctx) 4766 { 4767 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4768 struct iwl_mvm_phy_ctxt *phy_ctxt; 4769 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4770 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4771 int ret; 4772 4773 lockdep_assert_held(&mvm->mutex); 4774 4775 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4776 4777 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4778 if (!phy_ctxt) { 4779 ret = -ENOSPC; 4780 goto out; 4781 } 4782 4783 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4784 ctx->rx_chains_static, 4785 ctx->rx_chains_dynamic); 4786 if (ret) { 4787 IWL_ERR(mvm, "Failed to add PHY context\n"); 4788 goto out; 4789 } 4790 4791 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4792 *phy_ctxt_id = phy_ctxt->id; 4793 out: 4794 return ret; 4795 } 4796 4797 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4798 struct ieee80211_chanctx_conf *ctx) 4799 { 4800 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4801 int ret; 4802 4803 mutex_lock(&mvm->mutex); 4804 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4805 mutex_unlock(&mvm->mutex); 4806 4807 return ret; 4808 } 4809 4810 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4811 struct ieee80211_chanctx_conf *ctx) 4812 { 4813 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4814 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4815 4816 lockdep_assert_held(&mvm->mutex); 4817 4818 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4819 } 4820 4821 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4822 struct ieee80211_chanctx_conf *ctx) 4823 { 4824 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4825 4826 mutex_lock(&mvm->mutex); 4827 __iwl_mvm_remove_chanctx(mvm, ctx); 4828 mutex_unlock(&mvm->mutex); 4829 } 4830 4831 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4832 struct ieee80211_chanctx_conf *ctx, u32 changed) 4833 { 4834 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4835 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4836 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4837 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4838 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4839 4840 if (WARN_ONCE((phy_ctxt->ref > 1) && 4841 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4842 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4843 IEEE80211_CHANCTX_CHANGE_RADAR | 4844 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4845 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4846 phy_ctxt->ref, changed)) 4847 return; 4848 4849 mutex_lock(&mvm->mutex); 4850 4851 /* we are only changing the min_width, may be a noop */ 4852 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4853 if (phy_ctxt->width == def->width) 4854 goto out_unlock; 4855 4856 /* we are just toggling between 20_NOHT and 20 */ 4857 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4858 def->width <= NL80211_CHAN_WIDTH_20) 4859 goto out_unlock; 4860 } 4861 4862 iwl_mvm_bt_coex_vif_change(mvm); 4863 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4864 ctx->rx_chains_static, 4865 ctx->rx_chains_dynamic); 4866 4867 out_unlock: 4868 mutex_unlock(&mvm->mutex); 4869 } 4870 4871 /* 4872 * This function executes the common part for MLD and non-MLD modes. 4873 * 4874 * Returns true if we're done assigning the chanctx 4875 * (either on failure or success) 4876 */ 4877 static bool 4878 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4879 struct ieee80211_vif *vif, 4880 struct ieee80211_chanctx_conf *ctx, 4881 bool switching_chanctx, int *ret) 4882 { 4883 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4884 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4885 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4886 4887 lockdep_assert_held(&mvm->mutex); 4888 4889 mvmvif->deflink.phy_ctxt = phy_ctxt; 4890 4891 switch (vif->type) { 4892 case NL80211_IFTYPE_AP: 4893 /* only needed if we're switching chanctx (i.e. during CSA) */ 4894 if (switching_chanctx) { 4895 mvmvif->ap_ibss_active = true; 4896 break; 4897 } 4898 fallthrough; 4899 case NL80211_IFTYPE_ADHOC: 4900 /* 4901 * The AP binding flow is handled as part of the start_ap flow 4902 * (in bss_info_changed), similarly for IBSS. 4903 */ 4904 *ret = 0; 4905 return true; 4906 case NL80211_IFTYPE_STATION: 4907 break; 4908 case NL80211_IFTYPE_MONITOR: 4909 /* always disable PS when a monitor interface is active */ 4910 mvmvif->ps_disabled = true; 4911 break; 4912 default: 4913 *ret = -EINVAL; 4914 return true; 4915 } 4916 return false; 4917 } 4918 4919 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4920 struct ieee80211_vif *vif, 4921 struct ieee80211_bss_conf *link_conf, 4922 struct ieee80211_chanctx_conf *ctx, 4923 bool switching_chanctx) 4924 { 4925 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4926 int ret; 4927 4928 if (WARN_ON(!link_conf)) 4929 return -EINVAL; 4930 4931 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4932 switching_chanctx, &ret)) 4933 goto out; 4934 4935 ret = iwl_mvm_binding_add_vif(mvm, vif); 4936 if (ret) 4937 goto out; 4938 4939 /* 4940 * Power state must be updated before quotas, 4941 * otherwise fw will complain. 4942 */ 4943 iwl_mvm_power_update_mac(mvm); 4944 4945 /* Setting the quota at this stage is only required for monitor 4946 * interfaces. For the other types, the bss_info changed flow 4947 * will handle quota settings. 4948 */ 4949 if (vif->type == NL80211_IFTYPE_MONITOR) { 4950 mvmvif->monitor_active = true; 4951 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4952 if (ret) 4953 goto out_remove_binding; 4954 4955 ret = iwl_mvm_add_snif_sta(mvm, vif); 4956 if (ret) 4957 goto out_remove_binding; 4958 4959 } 4960 4961 /* Handle binding during CSA */ 4962 if (vif->type == NL80211_IFTYPE_AP) { 4963 iwl_mvm_update_quotas(mvm, false, NULL); 4964 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4965 } 4966 4967 if (vif->type == NL80211_IFTYPE_STATION) { 4968 if (!switching_chanctx) { 4969 mvmvif->csa_bcn_pending = false; 4970 goto out; 4971 } 4972 4973 mvmvif->csa_bcn_pending = true; 4974 4975 if (!fw_has_capa(&mvm->fw->ucode_capa, 4976 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4977 u32 duration = 3 * vif->bss_conf.beacon_int; 4978 4979 /* Protect the session to make sure we hear the first 4980 * beacon on the new channel. 4981 */ 4982 iwl_mvm_protect_session(mvm, vif, duration, duration, 4983 vif->bss_conf.beacon_int / 2, 4984 true); 4985 } 4986 4987 iwl_mvm_update_quotas(mvm, false, NULL); 4988 } 4989 4990 goto out; 4991 4992 out_remove_binding: 4993 iwl_mvm_binding_remove_vif(mvm, vif); 4994 iwl_mvm_power_update_mac(mvm); 4995 out: 4996 if (ret) 4997 mvmvif->deflink.phy_ctxt = NULL; 4998 return ret; 4999 } 5000 5001 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5002 struct ieee80211_vif *vif, 5003 struct ieee80211_bss_conf *link_conf, 5004 struct ieee80211_chanctx_conf *ctx) 5005 { 5006 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5007 int ret; 5008 5009 mutex_lock(&mvm->mutex); 5010 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5011 mutex_unlock(&mvm->mutex); 5012 5013 return ret; 5014 } 5015 5016 /* 5017 * This function executes the common part for MLD and non-MLD modes. 5018 * 5019 * Returns if chanctx unassign chanctx is done 5020 * (either on failure or success) 5021 */ 5022 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5023 struct ieee80211_vif *vif, 5024 bool switching_chanctx) 5025 { 5026 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5027 5028 lockdep_assert_held(&mvm->mutex); 5029 iwl_mvm_remove_time_event(mvm, mvmvif, 5030 &mvmvif->time_event_data); 5031 5032 switch (vif->type) { 5033 case NL80211_IFTYPE_ADHOC: 5034 return true; 5035 case NL80211_IFTYPE_MONITOR: 5036 mvmvif->monitor_active = false; 5037 mvmvif->ps_disabled = false; 5038 break; 5039 case NL80211_IFTYPE_AP: 5040 /* This part is triggered only during CSA */ 5041 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5042 return true; 5043 5044 mvmvif->csa_countdown = false; 5045 5046 /* Set CS bit on all the stations */ 5047 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5048 5049 /* Save blocked iface, the timeout is set on the next beacon */ 5050 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5051 5052 mvmvif->ap_ibss_active = false; 5053 break; 5054 default: 5055 break; 5056 } 5057 return false; 5058 } 5059 5060 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5061 struct ieee80211_vif *vif, 5062 struct ieee80211_bss_conf *link_conf, 5063 struct ieee80211_chanctx_conf *ctx, 5064 bool switching_chanctx) 5065 { 5066 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5067 struct ieee80211_vif *disabled_vif = NULL; 5068 5069 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5070 goto out; 5071 5072 if (vif->type == NL80211_IFTYPE_MONITOR) 5073 iwl_mvm_rm_snif_sta(mvm, vif); 5074 5075 5076 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5077 disabled_vif = vif; 5078 if (!fw_has_capa(&mvm->fw->ucode_capa, 5079 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5080 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5081 } 5082 5083 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5084 iwl_mvm_binding_remove_vif(mvm, vif); 5085 5086 out: 5087 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5088 switching_chanctx) 5089 return; 5090 mvmvif->deflink.phy_ctxt = NULL; 5091 iwl_mvm_power_update_mac(mvm); 5092 } 5093 5094 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5095 struct ieee80211_vif *vif, 5096 struct ieee80211_bss_conf *link_conf, 5097 struct ieee80211_chanctx_conf *ctx) 5098 { 5099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5100 5101 mutex_lock(&mvm->mutex); 5102 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5103 mutex_unlock(&mvm->mutex); 5104 } 5105 5106 static int 5107 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5108 struct ieee80211_vif_chanctx_switch *vifs, 5109 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5110 { 5111 int ret; 5112 5113 mutex_lock(&mvm->mutex); 5114 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5115 vifs[0].old_ctx, true); 5116 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5117 5118 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5119 if (ret) { 5120 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5121 goto out_reassign; 5122 } 5123 5124 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5125 vifs[0].new_ctx, true); 5126 if (ret) { 5127 IWL_ERR(mvm, 5128 "failed to assign new_ctx during channel switch\n"); 5129 goto out_remove; 5130 } 5131 5132 /* we don't support TDLS during DCM - can be caused by channel switch */ 5133 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5134 iwl_mvm_teardown_tdls_peers(mvm); 5135 5136 goto out; 5137 5138 out_remove: 5139 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5140 5141 out_reassign: 5142 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5143 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5144 goto out_restart; 5145 } 5146 5147 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5148 vifs[0].old_ctx, true)) { 5149 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5150 goto out_restart; 5151 } 5152 5153 goto out; 5154 5155 out_restart: 5156 /* things keep failing, better restart the hw */ 5157 iwl_mvm_nic_restart(mvm, false); 5158 5159 out: 5160 mutex_unlock(&mvm->mutex); 5161 5162 return ret; 5163 } 5164 5165 static int 5166 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5167 struct ieee80211_vif_chanctx_switch *vifs, 5168 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5169 { 5170 int ret; 5171 5172 mutex_lock(&mvm->mutex); 5173 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5174 vifs[0].old_ctx, true); 5175 5176 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5177 vifs[0].new_ctx, true); 5178 if (ret) { 5179 IWL_ERR(mvm, 5180 "failed to assign new_ctx during channel switch\n"); 5181 goto out_reassign; 5182 } 5183 5184 goto out; 5185 5186 out_reassign: 5187 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5188 vifs[0].old_ctx, true)) { 5189 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5190 goto out_restart; 5191 } 5192 5193 goto out; 5194 5195 out_restart: 5196 /* things keep failing, better restart the hw */ 5197 iwl_mvm_nic_restart(mvm, false); 5198 5199 out: 5200 mutex_unlock(&mvm->mutex); 5201 5202 return ret; 5203 } 5204 5205 /* Execute the common part for both MLD and non-MLD modes */ 5206 int 5207 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5208 struct ieee80211_vif_chanctx_switch *vifs, 5209 int n_vifs, 5210 enum ieee80211_chanctx_switch_mode mode, 5211 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5212 { 5213 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5214 int ret; 5215 5216 /* we only support a single-vif right now */ 5217 if (n_vifs > 1) 5218 return -EOPNOTSUPP; 5219 5220 switch (mode) { 5221 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5222 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5223 break; 5224 case CHANCTX_SWMODE_REASSIGN_VIF: 5225 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5226 break; 5227 default: 5228 ret = -EOPNOTSUPP; 5229 break; 5230 } 5231 5232 return ret; 5233 } 5234 5235 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5236 struct ieee80211_vif_chanctx_switch *vifs, 5237 int n_vifs, 5238 enum ieee80211_chanctx_switch_mode mode) 5239 { 5240 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5241 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5242 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5243 }; 5244 5245 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5246 } 5247 5248 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5249 { 5250 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5251 5252 return mvm->ibss_manager; 5253 } 5254 5255 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5256 bool set) 5257 { 5258 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5259 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5260 5261 if (!mvm_sta || !mvm_sta->vif) { 5262 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5263 return -EINVAL; 5264 } 5265 5266 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5267 &mvm_sta->vif->bss_conf); 5268 } 5269 5270 #ifdef CONFIG_NL80211_TESTMODE 5271 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5272 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5273 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5274 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5275 }; 5276 5277 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5278 struct ieee80211_vif *vif, 5279 void *data, int len) 5280 { 5281 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5282 int err; 5283 u32 noa_duration; 5284 5285 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5286 iwl_mvm_tm_policy, NULL); 5287 if (err) 5288 return err; 5289 5290 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5291 return -EINVAL; 5292 5293 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5294 case IWL_MVM_TM_CMD_SET_NOA: 5295 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5296 !vif->bss_conf.enable_beacon || 5297 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5298 return -EINVAL; 5299 5300 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5301 if (noa_duration >= vif->bss_conf.beacon_int) 5302 return -EINVAL; 5303 5304 mvm->noa_duration = noa_duration; 5305 mvm->noa_vif = vif; 5306 5307 return iwl_mvm_update_quotas(mvm, true, NULL); 5308 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5309 /* must be associated client vif - ignore authorized */ 5310 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5311 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5312 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5313 return -EINVAL; 5314 5315 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5316 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5317 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5318 } 5319 5320 return -EOPNOTSUPP; 5321 } 5322 5323 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5324 struct ieee80211_vif *vif, 5325 void *data, int len) 5326 { 5327 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5328 int err; 5329 5330 mutex_lock(&mvm->mutex); 5331 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5332 mutex_unlock(&mvm->mutex); 5333 5334 return err; 5335 } 5336 #endif 5337 5338 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5339 struct ieee80211_channel_switch *chsw) 5340 { 5341 /* By implementing this operation, we prevent mac80211 from 5342 * starting its own channel switch timer, so that we can call 5343 * ieee80211_chswitch_done() ourselves at the right time 5344 * (which is when the absence time event starts). 5345 */ 5346 5347 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5348 "dummy channel switch op\n"); 5349 } 5350 5351 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5352 struct ieee80211_vif *vif, 5353 struct ieee80211_channel_switch *chsw) 5354 { 5355 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5356 struct iwl_chan_switch_te_cmd cmd = { 5357 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5358 mvmvif->color)), 5359 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5360 .tsf = cpu_to_le32(chsw->timestamp), 5361 .cs_count = chsw->count, 5362 .cs_mode = chsw->block_tx, 5363 }; 5364 5365 lockdep_assert_held(&mvm->mutex); 5366 5367 if (chsw->delay) 5368 cmd.cs_delayed_bcn_count = 5369 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5370 5371 return iwl_mvm_send_cmd_pdu(mvm, 5372 WIDE_ID(MAC_CONF_GROUP, 5373 CHANNEL_SWITCH_TIME_EVENT_CMD), 5374 0, sizeof(cmd), &cmd); 5375 } 5376 5377 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5378 struct ieee80211_vif *vif, 5379 struct ieee80211_channel_switch *chsw) 5380 { 5381 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5382 u32 apply_time; 5383 5384 /* Schedule the time event to a bit before beacon 1, 5385 * to make sure we're in the new channel when the 5386 * GO/AP arrives. In case count <= 1 immediately schedule the 5387 * TE (this might result with some packet loss or connection 5388 * loss). 5389 */ 5390 if (chsw->count <= 1) 5391 apply_time = 0; 5392 else 5393 apply_time = chsw->device_timestamp + 5394 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5395 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5396 5397 if (chsw->block_tx) 5398 iwl_mvm_csa_client_absent(mvm, vif); 5399 5400 if (mvmvif->bf_data.bf_enabled) { 5401 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5402 5403 if (ret) 5404 return ret; 5405 } 5406 5407 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5408 apply_time); 5409 5410 return 0; 5411 } 5412 5413 #define IWL_MAX_CSA_BLOCK_TX 1500 5414 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5415 struct ieee80211_vif *vif, 5416 struct ieee80211_channel_switch *chsw) 5417 { 5418 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5419 struct ieee80211_vif *csa_vif; 5420 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5421 int ret; 5422 5423 mutex_lock(&mvm->mutex); 5424 5425 mvmvif->csa_failed = false; 5426 5427 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5428 chsw->chandef.center_freq1); 5429 5430 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5431 ieee80211_vif_to_wdev(vif), 5432 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5433 5434 switch (vif->type) { 5435 case NL80211_IFTYPE_AP: 5436 csa_vif = 5437 rcu_dereference_protected(mvm->csa_vif, 5438 lockdep_is_held(&mvm->mutex)); 5439 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5440 "Another CSA is already in progress")) { 5441 ret = -EBUSY; 5442 goto out_unlock; 5443 } 5444 5445 /* we still didn't unblock tx. prevent new CS meanwhile */ 5446 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5447 lockdep_is_held(&mvm->mutex))) { 5448 ret = -EBUSY; 5449 goto out_unlock; 5450 } 5451 5452 rcu_assign_pointer(mvm->csa_vif, vif); 5453 5454 if (WARN_ONCE(mvmvif->csa_countdown, 5455 "Previous CSA countdown didn't complete")) { 5456 ret = -EBUSY; 5457 goto out_unlock; 5458 } 5459 5460 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5461 5462 break; 5463 case NL80211_IFTYPE_STATION: 5464 /* 5465 * In the new flow FW is in charge of timing the switch so there 5466 * is no need for all of this 5467 */ 5468 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5469 CHANNEL_SWITCH_ERROR_NOTIF, 5470 0)) 5471 break; 5472 5473 /* 5474 * We haven't configured the firmware to be associated yet since 5475 * we don't know the dtim period. In this case, the firmware can't 5476 * track the beacons. 5477 */ 5478 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5479 ret = -EBUSY; 5480 goto out_unlock; 5481 } 5482 5483 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5484 schedule_delayed_work(&mvmvif->csa_work, 0); 5485 5486 if (chsw->block_tx) { 5487 /* 5488 * In case of undetermined / long time with immediate 5489 * quiet monitor status to gracefully disconnect 5490 */ 5491 if (!chsw->count || 5492 chsw->count * vif->bss_conf.beacon_int > 5493 IWL_MAX_CSA_BLOCK_TX) 5494 schedule_delayed_work(&mvmvif->csa_work, 5495 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5496 } 5497 5498 if (!fw_has_capa(&mvm->fw->ucode_capa, 5499 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5500 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5501 if (ret) 5502 goto out_unlock; 5503 } else { 5504 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5505 } 5506 5507 mvmvif->csa_count = chsw->count; 5508 mvmvif->csa_misbehave = false; 5509 break; 5510 default: 5511 break; 5512 } 5513 5514 mvmvif->ps_disabled = true; 5515 5516 ret = iwl_mvm_power_update_ps(mvm); 5517 if (ret) 5518 goto out_unlock; 5519 5520 /* we won't be on this channel any longer */ 5521 iwl_mvm_teardown_tdls_peers(mvm); 5522 5523 out_unlock: 5524 mutex_unlock(&mvm->mutex); 5525 5526 return ret; 5527 } 5528 5529 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5530 struct ieee80211_vif *vif, 5531 struct ieee80211_channel_switch *chsw) 5532 { 5533 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5534 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5535 struct iwl_chan_switch_te_cmd cmd = { 5536 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5537 mvmvif->color)), 5538 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5539 .tsf = cpu_to_le32(chsw->timestamp), 5540 .cs_count = chsw->count, 5541 .cs_mode = chsw->block_tx, 5542 }; 5543 5544 /* 5545 * In the new flow FW is in charge of timing the switch so there is no 5546 * need for all of this 5547 */ 5548 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5549 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5550 return; 5551 5552 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5553 return; 5554 5555 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5556 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5557 5558 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5559 if (mvmvif->csa_misbehave) { 5560 /* Second time, give up on this AP*/ 5561 iwl_mvm_abort_channel_switch(hw, vif); 5562 ieee80211_chswitch_done(vif, false); 5563 mvmvif->csa_misbehave = false; 5564 return; 5565 } 5566 mvmvif->csa_misbehave = true; 5567 } 5568 mvmvif->csa_count = chsw->count; 5569 5570 mutex_lock(&mvm->mutex); 5571 if (mvmvif->csa_failed) 5572 goto out_unlock; 5573 5574 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5575 WIDE_ID(MAC_CONF_GROUP, 5576 CHANNEL_SWITCH_TIME_EVENT_CMD), 5577 0, sizeof(cmd), &cmd)); 5578 out_unlock: 5579 mutex_unlock(&mvm->mutex); 5580 } 5581 5582 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5583 { 5584 int i; 5585 5586 if (!iwl_mvm_has_new_tx_api(mvm)) { 5587 if (drop) { 5588 mutex_lock(&mvm->mutex); 5589 iwl_mvm_flush_tx_path(mvm, 5590 iwl_mvm_flushable_queues(mvm) & queues); 5591 mutex_unlock(&mvm->mutex); 5592 } else { 5593 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5594 } 5595 return; 5596 } 5597 5598 mutex_lock(&mvm->mutex); 5599 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5600 struct ieee80211_sta *sta; 5601 5602 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5603 lockdep_is_held(&mvm->mutex)); 5604 if (IS_ERR_OR_NULL(sta)) 5605 continue; 5606 5607 if (drop) 5608 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5609 else 5610 iwl_mvm_wait_sta_queues_empty(mvm, 5611 iwl_mvm_sta_from_mac80211(sta)); 5612 } 5613 mutex_unlock(&mvm->mutex); 5614 } 5615 5616 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5617 u32 queues, bool drop) 5618 { 5619 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5620 struct iwl_mvm_vif *mvmvif; 5621 struct iwl_mvm_sta *mvmsta; 5622 struct ieee80211_sta *sta; 5623 bool ap_sta_done = false; 5624 int i; 5625 u32 msk = 0; 5626 5627 if (!vif) { 5628 iwl_mvm_flush_no_vif(mvm, queues, drop); 5629 return; 5630 } 5631 5632 /* Make sure we're done with the deferred traffic before flushing */ 5633 flush_work(&mvm->add_stream_wk); 5634 5635 mutex_lock(&mvm->mutex); 5636 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5637 5638 /* flush the AP-station and all TDLS peers */ 5639 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5640 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5641 lockdep_is_held(&mvm->mutex)); 5642 if (IS_ERR_OR_NULL(sta)) 5643 continue; 5644 5645 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5646 if (mvmsta->vif != vif) 5647 continue; 5648 5649 if (sta == mvmvif->ap_sta) { 5650 if (ap_sta_done) 5651 continue; 5652 ap_sta_done = true; 5653 } 5654 5655 if (drop) { 5656 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5657 mvmsta->tfd_queue_msk)) 5658 IWL_ERR(mvm, "flush request fail\n"); 5659 } else { 5660 if (iwl_mvm_has_new_tx_api(mvm)) 5661 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5662 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5663 msk |= mvmsta->tfd_queue_msk; 5664 } 5665 } 5666 5667 mutex_unlock(&mvm->mutex); 5668 5669 /* this can take a while, and we may need/want other operations 5670 * to succeed while doing this, so do it without the mutex held 5671 */ 5672 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5673 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5674 } 5675 5676 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5677 struct ieee80211_sta *sta) 5678 { 5679 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5680 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5681 struct iwl_mvm_link_sta *mvm_link_sta; 5682 struct ieee80211_link_sta *link_sta; 5683 int link_id; 5684 5685 mutex_lock(&mvm->mutex); 5686 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5687 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5688 lockdep_is_held(&mvm->mutex)); 5689 if (!mvm_link_sta) 5690 continue; 5691 5692 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5693 mvmsta->tfd_queue_msk)) 5694 IWL_ERR(mvm, "flush request fail\n"); 5695 } 5696 mutex_unlock(&mvm->mutex); 5697 } 5698 5699 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5700 struct survey_info *survey) 5701 { 5702 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5703 int ret; 5704 5705 memset(survey, 0, sizeof(*survey)); 5706 5707 /* only support global statistics right now */ 5708 if (idx != 0) 5709 return -ENOENT; 5710 5711 if (!fw_has_capa(&mvm->fw->ucode_capa, 5712 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5713 return -ENOENT; 5714 5715 mutex_lock(&mvm->mutex); 5716 5717 if (iwl_mvm_firmware_running(mvm)) { 5718 ret = iwl_mvm_request_statistics(mvm, false); 5719 if (ret) 5720 goto out; 5721 } 5722 5723 survey->filled = SURVEY_INFO_TIME | 5724 SURVEY_INFO_TIME_RX | 5725 SURVEY_INFO_TIME_TX | 5726 SURVEY_INFO_TIME_SCAN; 5727 survey->time = mvm->accu_radio_stats.on_time_rf + 5728 mvm->radio_stats.on_time_rf; 5729 do_div(survey->time, USEC_PER_MSEC); 5730 5731 survey->time_rx = mvm->accu_radio_stats.rx_time + 5732 mvm->radio_stats.rx_time; 5733 do_div(survey->time_rx, USEC_PER_MSEC); 5734 5735 survey->time_tx = mvm->accu_radio_stats.tx_time + 5736 mvm->radio_stats.tx_time; 5737 do_div(survey->time_tx, USEC_PER_MSEC); 5738 5739 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5740 mvm->radio_stats.on_time_scan; 5741 do_div(survey->time_scan, USEC_PER_MSEC); 5742 5743 ret = 0; 5744 out: 5745 mutex_unlock(&mvm->mutex); 5746 return ret; 5747 } 5748 5749 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5750 { 5751 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5752 u32 gi_ltf; 5753 5754 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5755 case RATE_MCS_CHAN_WIDTH_20: 5756 rinfo->bw = RATE_INFO_BW_20; 5757 break; 5758 case RATE_MCS_CHAN_WIDTH_40: 5759 rinfo->bw = RATE_INFO_BW_40; 5760 break; 5761 case RATE_MCS_CHAN_WIDTH_80: 5762 rinfo->bw = RATE_INFO_BW_80; 5763 break; 5764 case RATE_MCS_CHAN_WIDTH_160: 5765 rinfo->bw = RATE_INFO_BW_160; 5766 break; 5767 case RATE_MCS_CHAN_WIDTH_320: 5768 rinfo->bw = RATE_INFO_BW_320; 5769 break; 5770 } 5771 5772 if (format == RATE_MCS_CCK_MSK || 5773 format == RATE_MCS_LEGACY_OFDM_MSK) { 5774 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5775 5776 /* add the offset needed to get to the legacy ofdm indices */ 5777 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5778 rate += IWL_FIRST_OFDM_RATE; 5779 5780 switch (rate) { 5781 case IWL_RATE_1M_INDEX: 5782 rinfo->legacy = 10; 5783 break; 5784 case IWL_RATE_2M_INDEX: 5785 rinfo->legacy = 20; 5786 break; 5787 case IWL_RATE_5M_INDEX: 5788 rinfo->legacy = 55; 5789 break; 5790 case IWL_RATE_11M_INDEX: 5791 rinfo->legacy = 110; 5792 break; 5793 case IWL_RATE_6M_INDEX: 5794 rinfo->legacy = 60; 5795 break; 5796 case IWL_RATE_9M_INDEX: 5797 rinfo->legacy = 90; 5798 break; 5799 case IWL_RATE_12M_INDEX: 5800 rinfo->legacy = 120; 5801 break; 5802 case IWL_RATE_18M_INDEX: 5803 rinfo->legacy = 180; 5804 break; 5805 case IWL_RATE_24M_INDEX: 5806 rinfo->legacy = 240; 5807 break; 5808 case IWL_RATE_36M_INDEX: 5809 rinfo->legacy = 360; 5810 break; 5811 case IWL_RATE_48M_INDEX: 5812 rinfo->legacy = 480; 5813 break; 5814 case IWL_RATE_54M_INDEX: 5815 rinfo->legacy = 540; 5816 } 5817 return; 5818 } 5819 5820 rinfo->nss = u32_get_bits(rate_n_flags, 5821 RATE_MCS_NSS_MSK) + 1; 5822 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5823 RATE_HT_MCS_INDEX(rate_n_flags) : 5824 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5825 5826 if (rate_n_flags & RATE_MCS_SGI_MSK) 5827 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5828 5829 switch (format) { 5830 case RATE_MCS_EHT_MSK: 5831 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5832 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5833 break; 5834 case RATE_MCS_HE_MSK: 5835 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5836 5837 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5838 5839 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5840 rinfo->bw = RATE_INFO_BW_HE_RU; 5841 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5842 } 5843 5844 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5845 case RATE_MCS_HE_TYPE_SU: 5846 case RATE_MCS_HE_TYPE_EXT_SU: 5847 if (gi_ltf == 0 || gi_ltf == 1) 5848 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5849 else if (gi_ltf == 2) 5850 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5851 else if (gi_ltf == 3) 5852 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5853 else 5854 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5855 break; 5856 case RATE_MCS_HE_TYPE_MU: 5857 if (gi_ltf == 0 || gi_ltf == 1) 5858 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5859 else if (gi_ltf == 2) 5860 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5861 else 5862 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5863 break; 5864 case RATE_MCS_HE_TYPE_TRIG: 5865 if (gi_ltf == 0 || gi_ltf == 1) 5866 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5867 else 5868 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5869 break; 5870 } 5871 5872 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5873 rinfo->he_dcm = 1; 5874 break; 5875 case RATE_MCS_HT_MSK: 5876 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5877 break; 5878 case RATE_MCS_VHT_MSK: 5879 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5880 break; 5881 } 5882 } 5883 5884 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5885 struct ieee80211_vif *vif, 5886 struct ieee80211_sta *sta, 5887 struct station_info *sinfo) 5888 { 5889 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5890 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5891 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5892 5893 if (mvmsta->deflink.avg_energy) { 5894 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5895 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5896 } 5897 5898 if (iwl_mvm_has_tlc_offload(mvm)) { 5899 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5900 5901 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5902 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5903 } 5904 5905 /* if beacon filtering isn't on mac80211 does it anyway */ 5906 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5907 return; 5908 5909 if (!vif->cfg.assoc) 5910 return; 5911 5912 mutex_lock(&mvm->mutex); 5913 5914 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5915 goto unlock; 5916 5917 if (iwl_mvm_request_statistics(mvm, false)) 5918 goto unlock; 5919 5920 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5921 mvmvif->deflink.beacon_stats.accu_num_beacons; 5922 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5923 if (mvmvif->deflink.beacon_stats.avg_signal) { 5924 /* firmware only reports a value after RXing a few beacons */ 5925 sinfo->rx_beacon_signal_avg = 5926 mvmvif->deflink.beacon_stats.avg_signal; 5927 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5928 } 5929 unlock: 5930 mutex_unlock(&mvm->mutex); 5931 } 5932 5933 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5934 struct ieee80211_vif *vif, 5935 const struct ieee80211_mlme_event *mlme) 5936 { 5937 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5938 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5939 iwl_dbg_tlv_time_point(&mvm->fwrt, 5940 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5941 NULL); 5942 return; 5943 } 5944 5945 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5946 iwl_dbg_tlv_time_point(&mvm->fwrt, 5947 IWL_FW_INI_TIME_POINT_DEASSOC, 5948 NULL); 5949 return; 5950 } 5951 } 5952 5953 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5954 struct ieee80211_vif *vif, 5955 const struct ieee80211_event *event) 5956 { 5957 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5958 do { \ 5959 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5960 break; \ 5961 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5962 } while (0) 5963 5964 struct iwl_fw_dbg_trigger_tlv *trig; 5965 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5966 5967 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5968 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5969 return; 5970 } 5971 5972 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5973 FW_DBG_TRIGGER_MLME); 5974 if (!trig) 5975 return; 5976 5977 trig_mlme = (void *)trig->data; 5978 5979 if (event->u.mlme.data == ASSOC_EVENT) { 5980 if (event->u.mlme.status == MLME_DENIED) 5981 CHECK_MLME_TRIGGER(stop_assoc_denied, 5982 "DENIED ASSOC: reason %d", 5983 event->u.mlme.reason); 5984 else if (event->u.mlme.status == MLME_TIMEOUT) 5985 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5986 "ASSOC TIMEOUT"); 5987 } else if (event->u.mlme.data == AUTH_EVENT) { 5988 if (event->u.mlme.status == MLME_DENIED) 5989 CHECK_MLME_TRIGGER(stop_auth_denied, 5990 "DENIED AUTH: reason %d", 5991 event->u.mlme.reason); 5992 else if (event->u.mlme.status == MLME_TIMEOUT) 5993 CHECK_MLME_TRIGGER(stop_auth_timeout, 5994 "AUTH TIMEOUT"); 5995 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5996 CHECK_MLME_TRIGGER(stop_rx_deauth, 5997 "DEAUTH RX %d", event->u.mlme.reason); 5998 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5999 CHECK_MLME_TRIGGER(stop_tx_deauth, 6000 "DEAUTH TX %d", event->u.mlme.reason); 6001 } 6002 #undef CHECK_MLME_TRIGGER 6003 } 6004 6005 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6006 struct ieee80211_vif *vif, 6007 const struct ieee80211_event *event) 6008 { 6009 struct iwl_fw_dbg_trigger_tlv *trig; 6010 struct iwl_fw_dbg_trigger_ba *ba_trig; 6011 6012 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6013 FW_DBG_TRIGGER_BA); 6014 if (!trig) 6015 return; 6016 6017 ba_trig = (void *)trig->data; 6018 6019 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6020 return; 6021 6022 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6023 "BAR received from %pM, tid %d, ssn %d", 6024 event->u.ba.sta->addr, event->u.ba.tid, 6025 event->u.ba.ssn); 6026 } 6027 6028 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6029 struct ieee80211_vif *vif, 6030 const struct ieee80211_event *event) 6031 { 6032 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6033 6034 switch (event->type) { 6035 case MLME_EVENT: 6036 iwl_mvm_event_mlme_callback(mvm, vif, event); 6037 break; 6038 case BAR_RX_EVENT: 6039 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6040 break; 6041 case BA_FRAME_TIMEOUT: 6042 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6043 event->u.ba.tid); 6044 break; 6045 default: 6046 break; 6047 } 6048 } 6049 6050 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6051 enum iwl_mvm_rxq_notif_type type, 6052 bool sync, 6053 const void *data, u32 size) 6054 { 6055 struct { 6056 struct iwl_rxq_sync_cmd cmd; 6057 struct iwl_mvm_internal_rxq_notif notif; 6058 } __packed cmd = { 6059 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6060 .cmd.count = 6061 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6062 size), 6063 .notif.type = type, 6064 .notif.sync = sync, 6065 }; 6066 struct iwl_host_cmd hcmd = { 6067 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6068 .data[0] = &cmd, 6069 .len[0] = sizeof(cmd), 6070 .data[1] = data, 6071 .len[1] = size, 6072 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6073 }; 6074 int ret; 6075 6076 /* size must be a multiple of DWORD */ 6077 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6078 return; 6079 6080 if (!iwl_mvm_has_new_rx_api(mvm)) 6081 return; 6082 6083 if (sync) { 6084 cmd.notif.cookie = mvm->queue_sync_cookie; 6085 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6086 } 6087 6088 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6089 if (ret) { 6090 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6091 goto out; 6092 } 6093 6094 if (sync) { 6095 lockdep_assert_held(&mvm->mutex); 6096 ret = wait_event_timeout(mvm->rx_sync_waitq, 6097 READ_ONCE(mvm->queue_sync_state) == 0, 6098 HZ); 6099 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx\n", 6100 mvm->queue_sync_state); 6101 } 6102 6103 out: 6104 if (sync) { 6105 mvm->queue_sync_state = 0; 6106 mvm->queue_sync_cookie++; 6107 } 6108 } 6109 6110 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6111 { 6112 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6113 6114 mutex_lock(&mvm->mutex); 6115 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6116 mutex_unlock(&mvm->mutex); 6117 } 6118 6119 int 6120 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6121 struct ieee80211_vif *vif, 6122 struct cfg80211_ftm_responder_stats *stats) 6123 { 6124 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6125 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6126 6127 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6128 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6129 return -EINVAL; 6130 6131 mutex_lock(&mvm->mutex); 6132 *stats = mvm->ftm_resp_stats; 6133 mutex_unlock(&mvm->mutex); 6134 6135 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6136 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6137 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6138 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6139 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6140 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6141 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6142 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6143 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6144 6145 return 0; 6146 } 6147 6148 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6149 struct cfg80211_pmsr_request *request) 6150 { 6151 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6152 int ret; 6153 6154 mutex_lock(&mvm->mutex); 6155 ret = iwl_mvm_ftm_start(mvm, vif, request); 6156 mutex_unlock(&mvm->mutex); 6157 6158 return ret; 6159 } 6160 6161 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6162 struct cfg80211_pmsr_request *request) 6163 { 6164 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6165 6166 mutex_lock(&mvm->mutex); 6167 iwl_mvm_ftm_abort(mvm, request); 6168 mutex_unlock(&mvm->mutex); 6169 } 6170 6171 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6172 { 6173 u8 protocol = ip_hdr(skb)->protocol; 6174 6175 if (!IS_ENABLED(CONFIG_INET)) 6176 return false; 6177 6178 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6179 } 6180 6181 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6182 struct sk_buff *head, 6183 struct sk_buff *skb) 6184 { 6185 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6186 6187 /* For now don't aggregate IPv6 in AMSDU */ 6188 if (skb->protocol != htons(ETH_P_IP)) 6189 return false; 6190 6191 if (!iwl_mvm_is_csum_supported(mvm)) 6192 return true; 6193 6194 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6195 } 6196 6197 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6198 struct ieee80211_vif *vif, 6199 struct cfg80211_set_hw_timestamp *hwts) 6200 { 6201 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6202 u32 protocols = 0; 6203 int ret; 6204 6205 /* HW timestamping is only supported for a specific station */ 6206 if (!hwts->macaddr) 6207 return -EOPNOTSUPP; 6208 6209 if (hwts->enable) 6210 protocols = 6211 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6212 6213 mutex_lock(&mvm->mutex); 6214 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6215 mutex_unlock(&mvm->mutex); 6216 6217 return ret; 6218 } 6219 6220 const struct ieee80211_ops iwl_mvm_hw_ops = { 6221 .tx = iwl_mvm_mac_tx, 6222 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6223 .ampdu_action = iwl_mvm_mac_ampdu_action, 6224 .get_antenna = iwl_mvm_op_get_antenna, 6225 .start = iwl_mvm_mac_start, 6226 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6227 .stop = iwl_mvm_mac_stop, 6228 .add_interface = iwl_mvm_mac_add_interface, 6229 .remove_interface = iwl_mvm_mac_remove_interface, 6230 .config = iwl_mvm_mac_config, 6231 .prepare_multicast = iwl_mvm_prepare_multicast, 6232 .configure_filter = iwl_mvm_configure_filter, 6233 .config_iface_filter = iwl_mvm_config_iface_filter, 6234 .bss_info_changed = iwl_mvm_bss_info_changed, 6235 .hw_scan = iwl_mvm_mac_hw_scan, 6236 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6237 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6238 .sta_state = iwl_mvm_mac_sta_state, 6239 .sta_notify = iwl_mvm_mac_sta_notify, 6240 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6241 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6242 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6243 .sta_rc_update = iwl_mvm_sta_rc_update, 6244 .conf_tx = iwl_mvm_mac_conf_tx, 6245 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6246 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6247 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6248 .flush = iwl_mvm_mac_flush, 6249 .flush_sta = iwl_mvm_mac_flush_sta, 6250 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6251 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6252 .set_key = iwl_mvm_mac_set_key, 6253 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6254 .remain_on_channel = iwl_mvm_roc, 6255 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6256 .add_chanctx = iwl_mvm_add_chanctx, 6257 .remove_chanctx = iwl_mvm_remove_chanctx, 6258 .change_chanctx = iwl_mvm_change_chanctx, 6259 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6260 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6261 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6262 6263 .start_ap = iwl_mvm_start_ap, 6264 .stop_ap = iwl_mvm_stop_ap, 6265 .join_ibss = iwl_mvm_start_ibss, 6266 .leave_ibss = iwl_mvm_stop_ibss, 6267 6268 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6269 6270 .set_tim = iwl_mvm_set_tim, 6271 6272 .channel_switch = iwl_mvm_channel_switch, 6273 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6274 .post_channel_switch = iwl_mvm_post_channel_switch, 6275 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6276 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6277 6278 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6279 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6280 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6281 6282 .event_callback = iwl_mvm_mac_event_callback, 6283 6284 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6285 6286 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6287 6288 #ifdef CONFIG_PM_SLEEP 6289 /* look at d3.c */ 6290 .suspend = iwl_mvm_suspend, 6291 .resume = iwl_mvm_resume, 6292 .set_wakeup = iwl_mvm_set_wakeup, 6293 .set_rekey_data = iwl_mvm_set_rekey_data, 6294 #if IS_ENABLED(CONFIG_IPV6) 6295 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6296 #endif 6297 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6298 #endif 6299 .get_survey = iwl_mvm_mac_get_survey, 6300 .sta_statistics = iwl_mvm_mac_sta_statistics, 6301 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6302 .start_pmsr = iwl_mvm_start_pmsr, 6303 .abort_pmsr = iwl_mvm_abort_pmsr, 6304 6305 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6306 #ifdef CONFIG_IWLWIFI_DEBUGFS 6307 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6308 #endif 6309 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6310 }; 6311