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 /* Some kind of regulatory mess means we need to currently disallow 156 * puncturing in the US and Canada. Do that here, at least until we 157 * figure out the new chanctx APIs for puncturing. 158 */ 159 if (resp->mcc == cpu_to_le16(IWL_MCC_US) || 160 resp->mcc == cpu_to_le16(IWL_MCC_CANADA)) 161 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING); 162 else 163 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags); 164 165 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 166 167 out: 168 kfree(resp); 169 return regd; 170 } 171 172 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 173 { 174 bool changed; 175 struct ieee80211_regdomain *regd; 176 177 if (!iwl_mvm_is_lar_supported(mvm)) 178 return; 179 180 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 181 if (!IS_ERR_OR_NULL(regd)) { 182 /* only update the regulatory core if changed */ 183 if (changed) 184 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 185 186 kfree(regd); 187 } 188 } 189 190 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 191 bool *changed) 192 { 193 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 194 iwl_mvm_is_wifi_mcc_supported(mvm) ? 195 MCC_SOURCE_GET_CURRENT : 196 MCC_SOURCE_OLD_FW, changed); 197 } 198 199 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 200 { 201 enum iwl_mcc_source used_src; 202 struct ieee80211_regdomain *regd; 203 int ret; 204 bool changed; 205 const struct ieee80211_regdomain *r = 206 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 207 208 if (!r) 209 return -ENOENT; 210 211 /* save the last source in case we overwrite it below */ 212 used_src = mvm->mcc_src; 213 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 214 /* Notify the firmware we support wifi location updates */ 215 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 216 if (!IS_ERR_OR_NULL(regd)) 217 kfree(regd); 218 } 219 220 /* Now set our last stored MCC and source */ 221 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 222 &changed); 223 if (IS_ERR_OR_NULL(regd)) 224 return -EIO; 225 226 /* update cfg80211 if the regdomain was changed or the caller explicitly 227 * asked to update regdomain 228 */ 229 if (changed || force_regd_sync) 230 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 231 else 232 ret = 0; 233 234 kfree(regd); 235 return ret; 236 } 237 238 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 239 static const u8 he_if_types_ext_capa_sta[] = { 240 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 241 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 242 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 243 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 244 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 245 }; 246 247 static const u8 tm_if_types_ext_capa_sta[] = { 248 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 249 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 250 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 251 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 252 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 253 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 254 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 255 }; 256 257 /* Additional interface types for which extended capabilities are 258 * specified separately 259 */ 260 261 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 262 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 263 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 264 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 265 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 266 267 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 268 { 269 .iftype = NL80211_IFTYPE_STATION, 270 .extended_capabilities = he_if_types_ext_capa_sta, 271 .extended_capabilities_mask = he_if_types_ext_capa_sta, 272 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 273 /* relevant only if EHT is supported */ 274 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 275 }, 276 { 277 .iftype = NL80211_IFTYPE_STATION, 278 .extended_capabilities = tm_if_types_ext_capa_sta, 279 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 280 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 281 /* relevant only if EHT is supported */ 282 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 283 }, 284 }; 285 286 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 287 { 288 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 289 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 290 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 291 return 0; 292 } 293 294 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 295 { 296 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 297 298 /* This has been tested on those devices only */ 299 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 300 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) 301 return -EOPNOTSUPP; 302 303 if (!mvm->nvm_data) 304 return -EBUSY; 305 306 /* mac80211 ensures the device is not started, 307 * so the firmware cannot be running 308 */ 309 310 mvm->set_tx_ant = tx_ant; 311 mvm->set_rx_ant = rx_ant; 312 313 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 314 315 return 0; 316 } 317 318 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 319 { 320 struct ieee80211_hw *hw = mvm->hw; 321 int num_mac, ret, i; 322 static const u32 mvm_ciphers[] = { 323 WLAN_CIPHER_SUITE_WEP40, 324 WLAN_CIPHER_SUITE_WEP104, 325 WLAN_CIPHER_SUITE_TKIP, 326 WLAN_CIPHER_SUITE_CCMP, 327 }; 328 #ifdef CONFIG_PM_SLEEP 329 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 330 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 331 #endif 332 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 333 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 334 335 /* Tell mac80211 our characteristics */ 336 ieee80211_hw_set(hw, SIGNAL_DBM); 337 ieee80211_hw_set(hw, SPECTRUM_MGMT); 338 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 339 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 340 ieee80211_hw_set(hw, SUPPORTS_PS); 341 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 342 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 343 ieee80211_hw_set(hw, CONNECTION_MONITOR); 344 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 345 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 346 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 347 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 348 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 349 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 350 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 351 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 352 353 /* Set this early since we need to have it for the check below */ 354 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 355 !iwlwifi_mod_params.disable_11ax && 356 !iwlwifi_mod_params.disable_11be) 357 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 358 359 /* With MLD FW API, it tracks timing by itself, 360 * no need for any timing from the host 361 */ 362 if (!mvm->mld_api_is_used) 363 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 364 365 /* We should probably have this, but mac80211 366 * currently doesn't support it for MLO. 367 */ 368 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 369 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 370 371 /* 372 * On older devices, enabling TX A-MSDU occasionally leads to 373 * something getting messed up, the command read from the FIFO 374 * gets out of sync and isn't a TX command, so that we have an 375 * assert EDC. 376 * 377 * It's not clear where the bug is, but since we didn't used to 378 * support A-MSDU until moving the mac80211 iTXQs, just leave it 379 * for older devices. We also don't see this issue on any newer 380 * devices. 381 */ 382 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 383 ieee80211_hw_set(hw, TX_AMSDU); 384 ieee80211_hw_set(hw, TX_FRAG_LIST); 385 386 if (iwl_mvm_has_tlc_offload(mvm)) { 387 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 388 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 389 } 390 391 /* We want to use the mac80211's reorder buffer for 9000 */ 392 if (iwl_mvm_has_new_rx_api(mvm) && 393 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 394 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 395 396 if (fw_has_capa(&mvm->fw->ucode_capa, 397 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 398 ieee80211_hw_set(hw, AP_LINK_PS); 399 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 400 /* 401 * we absolutely need this for the new TX API since that comes 402 * with many more queues than the current code can deal with 403 * for station powersave 404 */ 405 return -EINVAL; 406 } 407 408 if (mvm->trans->num_rx_queues > 1) 409 ieee80211_hw_set(hw, USES_RSS); 410 411 if (mvm->trans->max_skb_frags) 412 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 413 414 hw->queues = IEEE80211_NUM_ACS; 415 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 416 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 417 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 418 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 419 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 420 421 hw->radiotap_timestamp.units_pos = 422 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 423 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 424 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 425 hw->radiotap_timestamp.accuracy = 22; 426 427 if (!iwl_mvm_has_tlc_offload(mvm)) 428 hw->rate_control_algorithm = RS_NAME; 429 430 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 431 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 432 hw->max_tx_fragments = mvm->trans->max_skb_frags; 433 434 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 435 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 436 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 437 hw->wiphy->cipher_suites = mvm->ciphers; 438 439 if (iwl_mvm_has_new_rx_api(mvm)) { 440 mvm->ciphers[hw->wiphy->n_cipher_suites] = 441 WLAN_CIPHER_SUITE_GCMP; 442 hw->wiphy->n_cipher_suites++; 443 mvm->ciphers[hw->wiphy->n_cipher_suites] = 444 WLAN_CIPHER_SUITE_GCMP_256; 445 hw->wiphy->n_cipher_suites++; 446 } 447 448 if (iwlwifi_mod_params.swcrypto) 449 IWL_ERR(mvm, 450 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 451 if (!iwlwifi_mod_params.bt_coex_active) 452 IWL_ERR(mvm, 453 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 454 455 ieee80211_hw_set(hw, MFP_CAPABLE); 456 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 457 hw->wiphy->n_cipher_suites++; 458 if (iwl_mvm_has_new_rx_api(mvm)) { 459 mvm->ciphers[hw->wiphy->n_cipher_suites] = 460 WLAN_CIPHER_SUITE_BIP_GMAC_128; 461 hw->wiphy->n_cipher_suites++; 462 mvm->ciphers[hw->wiphy->n_cipher_suites] = 463 WLAN_CIPHER_SUITE_BIP_GMAC_256; 464 hw->wiphy->n_cipher_suites++; 465 } 466 467 wiphy_ext_feature_set(hw->wiphy, 468 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 469 wiphy_ext_feature_set(hw->wiphy, 470 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 471 472 if (fw_has_capa(&mvm->fw->ucode_capa, 473 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 474 wiphy_ext_feature_set(hw->wiphy, 475 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 476 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 477 } 478 479 if (sec_key_ver && 480 fw_has_capa(&mvm->fw->ucode_capa, 481 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 482 wiphy_ext_feature_set(hw->wiphy, 483 NL80211_EXT_FEATURE_BEACON_PROTECTION); 484 else if (fw_has_capa(&mvm->fw->ucode_capa, 485 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 486 wiphy_ext_feature_set(hw->wiphy, 487 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 488 489 if (fw_has_capa(&mvm->fw->ucode_capa, 490 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 491 hw->wiphy->hw_timestamp_max_peers = 1; 492 493 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 494 hw->wiphy->features |= 495 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 496 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 497 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 498 499 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 500 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 501 hw->chanctx_data_size = sizeof(u16); 502 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 503 504 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 505 BIT(NL80211_IFTYPE_P2P_CLIENT) | 506 BIT(NL80211_IFTYPE_AP) | 507 BIT(NL80211_IFTYPE_P2P_GO) | 508 BIT(NL80211_IFTYPE_P2P_DEVICE) | 509 BIT(NL80211_IFTYPE_ADHOC); 510 511 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 512 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 513 514 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 515 * the hw, preventing us to control which key(id) to use per MPDU. 516 * Till that's fixed we can't use Extended Key ID for the newer cards. 517 */ 518 if (!iwl_mvm_has_new_tx_api(mvm)) 519 wiphy_ext_feature_set(hw->wiphy, 520 NL80211_EXT_FEATURE_EXT_KEY_ID); 521 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 522 523 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 524 if (iwl_mvm_is_lar_supported(mvm)) 525 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 526 else 527 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 528 REGULATORY_DISABLE_BEACON_HINTS; 529 530 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 531 wiphy_ext_feature_set(hw->wiphy, 532 NL80211_EXT_FEATURE_DFS_CONCURRENT); 533 534 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 535 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 536 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 537 538 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 539 hw->wiphy->n_iface_combinations = 540 ARRAY_SIZE(iwl_mvm_iface_combinations); 541 542 hw->wiphy->max_remain_on_channel_duration = 10000; 543 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 544 545 /* Extract MAC address */ 546 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 547 hw->wiphy->addresses = mvm->addresses; 548 hw->wiphy->n_addresses = 1; 549 550 /* Extract additional MAC addresses if available */ 551 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 552 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 553 554 for (i = 1; i < num_mac; i++) { 555 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 556 ETH_ALEN); 557 mvm->addresses[i].addr[5]++; 558 hw->wiphy->n_addresses++; 559 } 560 561 iwl_mvm_reset_phy_ctxts(mvm); 562 563 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 564 565 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 566 567 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 568 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 569 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 570 571 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 572 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 573 else 574 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 575 576 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 577 hw->wiphy->bands[NL80211_BAND_2GHZ] = 578 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 579 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 580 hw->wiphy->bands[NL80211_BAND_5GHZ] = 581 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 582 583 if (fw_has_capa(&mvm->fw->ucode_capa, 584 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 585 fw_has_api(&mvm->fw->ucode_capa, 586 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 587 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 588 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 589 } 590 if (fw_has_capa(&mvm->fw->ucode_capa, 591 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 592 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 593 hw->wiphy->bands[NL80211_BAND_6GHZ] = 594 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 595 596 hw->wiphy->hw_version = mvm->trans->hw_id; 597 598 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 599 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 600 else 601 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 602 603 hw->wiphy->max_sched_scan_reqs = 1; 604 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 605 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 606 /* we create the 802.11 header and zero length SSID IE. */ 607 hw->wiphy->max_sched_scan_ie_len = 608 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 609 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 610 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 611 612 /* 613 * the firmware uses u8 for num of iterations, but 0xff is saved for 614 * infinite loop, so the maximum number of iterations is actually 254. 615 */ 616 hw->wiphy->max_sched_scan_plan_iterations = 254; 617 618 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 619 NL80211_FEATURE_LOW_PRIORITY_SCAN | 620 NL80211_FEATURE_P2P_GO_OPPPS | 621 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 622 NL80211_FEATURE_DYNAMIC_SMPS | 623 NL80211_FEATURE_STATIC_SMPS | 624 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 625 626 if (fw_has_capa(&mvm->fw->ucode_capa, 627 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 628 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 629 if (fw_has_capa(&mvm->fw->ucode_capa, 630 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 631 hw->wiphy->features |= NL80211_FEATURE_QUIET; 632 633 if (fw_has_capa(&mvm->fw->ucode_capa, 634 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 635 hw->wiphy->features |= 636 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 637 638 if (fw_has_capa(&mvm->fw->ucode_capa, 639 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 640 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 641 642 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 643 IWL_FW_CMD_VER_UNKNOWN) == 3) 644 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 645 646 if (fw_has_api(&mvm->fw->ucode_capa, 647 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 648 wiphy_ext_feature_set(hw->wiphy, 649 NL80211_EXT_FEATURE_SCAN_START_TIME); 650 wiphy_ext_feature_set(hw->wiphy, 651 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 652 } 653 654 if (iwl_mvm_is_oce_supported(mvm)) { 655 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 656 657 wiphy_ext_feature_set(hw->wiphy, 658 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 659 wiphy_ext_feature_set(hw->wiphy, 660 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 661 wiphy_ext_feature_set(hw->wiphy, 662 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 663 664 /* Old firmware also supports probe deferral and suppression */ 665 if (scan_ver < 15) 666 wiphy_ext_feature_set(hw->wiphy, 667 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 668 } 669 670 hw->wiphy->iftype_ext_capab = NULL; 671 hw->wiphy->num_iftype_ext_capab = 0; 672 673 if (mvm->nvm_data->sku_cap_11ax_enable && 674 !iwlwifi_mod_params.disable_11ax) { 675 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 676 hw->wiphy->num_iftype_ext_capab = 677 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 678 679 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 680 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 681 } 682 683 if (iwl_fw_lookup_cmd_ver(mvm->fw, 684 WIDE_ID(DATA_PATH_GROUP, 685 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 686 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 687 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 688 689 if (!hw->wiphy->iftype_ext_capab) { 690 hw->wiphy->num_iftype_ext_capab = 1; 691 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 692 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 693 } else { 694 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 695 } 696 } 697 698 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 699 700 #ifdef CONFIG_PM_SLEEP 701 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 702 mvm->trans->ops->d3_suspend && 703 mvm->trans->ops->d3_resume && 704 device_can_wakeup(mvm->trans->dev)) { 705 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 706 WIPHY_WOWLAN_DISCONNECT | 707 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 708 WIPHY_WOWLAN_RFKILL_RELEASE | 709 WIPHY_WOWLAN_NET_DETECT; 710 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 711 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 712 WIPHY_WOWLAN_4WAY_HANDSHAKE; 713 714 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 715 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 716 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 717 mvm->wowlan.max_nd_match_sets = 718 iwl_umac_scan_get_max_profiles(mvm->fw); 719 hw->wiphy->wowlan = &mvm->wowlan; 720 } 721 #endif 722 723 ret = iwl_mvm_leds_init(mvm); 724 if (ret) 725 return ret; 726 727 if (fw_has_capa(&mvm->fw->ucode_capa, 728 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 729 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 730 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 731 ieee80211_hw_set(hw, TDLS_WIDER_BW); 732 } 733 734 if (fw_has_capa(&mvm->fw->ucode_capa, 735 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 736 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 737 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 738 } 739 740 hw->netdev_features |= mvm->cfg->features; 741 if (!iwl_mvm_is_csum_supported(mvm)) 742 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 743 744 if (mvm->cfg->vht_mu_mimo_supported) 745 wiphy_ext_feature_set(hw->wiphy, 746 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 747 748 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 749 wiphy_ext_feature_set(hw->wiphy, 750 NL80211_EXT_FEATURE_PROTECTED_TWT); 751 752 iwl_mvm_vendor_cmds_register(mvm); 753 754 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 755 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 756 757 ret = ieee80211_register_hw(mvm->hw); 758 if (ret) { 759 iwl_mvm_leds_exit(mvm); 760 } 761 762 return ret; 763 } 764 765 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 766 struct ieee80211_sta *sta) 767 { 768 if (likely(sta)) { 769 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 770 return; 771 } else { 772 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 773 return; 774 } 775 776 ieee80211_free_txskb(mvm->hw, skb); 777 } 778 779 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 780 struct ieee80211_tx_control *control, struct sk_buff *skb) 781 { 782 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 783 struct ieee80211_sta *sta = control->sta; 784 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 785 struct ieee80211_hdr *hdr = (void *)skb->data; 786 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 787 IEEE80211_TX_CTL_TX_OFFCHAN; 788 u32 link_id = u32_get_bits(info->control.flags, 789 IEEE80211_TX_CTRL_MLO_LINK); 790 struct ieee80211_sta *tmp_sta = sta; 791 792 if (iwl_mvm_is_radio_killed(mvm)) { 793 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 794 goto drop; 795 } 796 797 if (offchannel && 798 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 799 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 800 goto drop; 801 802 /* 803 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 804 * so we treat the others as broadcast 805 */ 806 if (ieee80211_is_mgmt(hdr->frame_control)) 807 sta = NULL; 808 809 /* If there is no sta, and it's not offchannel - send through AP */ 810 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 811 !offchannel) { 812 struct iwl_mvm_vif *mvmvif = 813 iwl_mvm_vif_from_mac80211(info->control.vif); 814 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 815 816 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 817 /* mac80211 holds rcu read lock */ 818 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 819 if (IS_ERR_OR_NULL(sta)) 820 goto drop; 821 } 822 } 823 824 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 825 !ieee80211_is_probe_resp(hdr->frame_control)) { 826 /* translate MLD addresses to LINK addresses */ 827 struct ieee80211_link_sta *link_sta = 828 rcu_dereference(tmp_sta->link[link_id]); 829 struct ieee80211_bss_conf *link_conf = 830 rcu_dereference(info->control.vif->link_conf[link_id]); 831 struct ieee80211_mgmt *mgmt; 832 833 if (WARN_ON(!link_sta || !link_conf)) 834 goto drop; 835 836 /* if sta is NULL, the frame is a management frame */ 837 mgmt = (void *)hdr; 838 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 839 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 840 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 841 } 842 843 iwl_mvm_tx_skb(mvm, skb, sta); 844 return; 845 drop: 846 ieee80211_free_txskb(hw, skb); 847 } 848 849 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 850 { 851 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 852 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 853 struct sk_buff *skb = NULL; 854 855 /* 856 * No need for threads to be pending here, they can leave the first 857 * taker all the work. 858 * 859 * mvmtxq->tx_request logic: 860 * 861 * If 0, no one is currently TXing, set to 1 to indicate current thread 862 * will now start TX and other threads should quit. 863 * 864 * If 1, another thread is currently TXing, set to 2 to indicate to 865 * that thread that there was another request. Since that request may 866 * have raced with the check whether the queue is empty, the TXing 867 * thread should check the queue's status one more time before leaving. 868 * This check is done in order to not leave any TX hanging in the queue 869 * until the next TX invocation (which may not even happen). 870 * 871 * If 2, another thread is currently TXing, and it will already double 872 * check the queue, so do nothing. 873 */ 874 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 875 return; 876 877 rcu_read_lock(); 878 do { 879 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 880 &mvmtxq->state) && 881 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 882 &mvmtxq->state) && 883 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 884 skb = ieee80211_tx_dequeue(hw, txq); 885 886 if (!skb) { 887 if (txq->sta) 888 IWL_DEBUG_TX(mvm, 889 "TXQ of sta %pM tid %d is now empty\n", 890 txq->sta->addr, 891 txq->tid); 892 break; 893 } 894 895 iwl_mvm_tx_skb(mvm, skb, txq->sta); 896 } 897 } while (atomic_dec_return(&mvmtxq->tx_request)); 898 rcu_read_unlock(); 899 } 900 901 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 902 struct ieee80211_txq *txq) 903 { 904 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 905 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 906 907 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 908 !txq->sta) { 909 iwl_mvm_mac_itxq_xmit(hw, txq); 910 return; 911 } 912 913 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 914 * to handle any packets we leave on the txq now 915 */ 916 917 spin_lock_bh(&mvm->add_stream_lock); 918 /* The list is being deleted only after the queue is fully allocated. */ 919 if (list_empty(&mvmtxq->list) && 920 /* recheck under lock */ 921 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 922 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 923 schedule_work(&mvm->add_stream_wk); 924 } 925 spin_unlock_bh(&mvm->add_stream_lock); 926 } 927 928 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 929 do { \ 930 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 931 break; \ 932 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 933 } while (0) 934 935 static void 936 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 937 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 938 enum ieee80211_ampdu_mlme_action action) 939 { 940 struct iwl_fw_dbg_trigger_tlv *trig; 941 struct iwl_fw_dbg_trigger_ba *ba_trig; 942 943 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 944 FW_DBG_TRIGGER_BA); 945 if (!trig) 946 return; 947 948 ba_trig = (void *)trig->data; 949 950 switch (action) { 951 case IEEE80211_AMPDU_TX_OPERATIONAL: { 952 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 953 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 954 955 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 956 "TX AGG START: MAC %pM tid %d ssn %d\n", 957 sta->addr, tid, tid_data->ssn); 958 break; 959 } 960 case IEEE80211_AMPDU_TX_STOP_CONT: 961 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 962 "TX AGG STOP: MAC %pM tid %d\n", 963 sta->addr, tid); 964 break; 965 case IEEE80211_AMPDU_RX_START: 966 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 967 "RX AGG START: MAC %pM tid %d ssn %d\n", 968 sta->addr, tid, rx_ba_ssn); 969 break; 970 case IEEE80211_AMPDU_RX_STOP: 971 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 972 "RX AGG STOP: MAC %pM tid %d\n", 973 sta->addr, tid); 974 break; 975 default: 976 break; 977 } 978 } 979 980 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 981 struct ieee80211_vif *vif, 982 struct ieee80211_ampdu_params *params) 983 { 984 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 985 int ret; 986 struct ieee80211_sta *sta = params->sta; 987 enum ieee80211_ampdu_mlme_action action = params->action; 988 u16 tid = params->tid; 989 u16 *ssn = ¶ms->ssn; 990 u16 buf_size = params->buf_size; 991 bool amsdu = params->amsdu; 992 u16 timeout = params->timeout; 993 994 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 995 sta->addr, tid, action); 996 997 if (!(mvm->nvm_data->sku_cap_11n_enable)) 998 return -EACCES; 999 1000 mutex_lock(&mvm->mutex); 1001 1002 switch (action) { 1003 case IEEE80211_AMPDU_RX_START: 1004 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1005 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1006 struct iwl_mvm_vif *mvmvif; 1007 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1008 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1009 1010 mdata->opened_rx_ba_sessions = true; 1011 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1012 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1013 } 1014 if (!iwl_enable_rx_ampdu()) { 1015 ret = -EINVAL; 1016 break; 1017 } 1018 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1019 timeout); 1020 break; 1021 case IEEE80211_AMPDU_RX_STOP: 1022 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1023 timeout); 1024 break; 1025 case IEEE80211_AMPDU_TX_START: 1026 if (!iwl_enable_tx_ampdu()) { 1027 ret = -EINVAL; 1028 break; 1029 } 1030 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1031 break; 1032 case IEEE80211_AMPDU_TX_STOP_CONT: 1033 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1034 break; 1035 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1036 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1037 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1038 break; 1039 case IEEE80211_AMPDU_TX_OPERATIONAL: 1040 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1041 buf_size, amsdu); 1042 break; 1043 default: 1044 WARN_ON_ONCE(1); 1045 ret = -EINVAL; 1046 break; 1047 } 1048 1049 if (!ret) { 1050 u16 rx_ba_ssn = 0; 1051 1052 if (action == IEEE80211_AMPDU_RX_START) 1053 rx_ba_ssn = *ssn; 1054 1055 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1056 rx_ba_ssn, action); 1057 } 1058 mutex_unlock(&mvm->mutex); 1059 1060 return ret; 1061 } 1062 1063 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1064 struct ieee80211_vif *vif) 1065 { 1066 struct iwl_mvm *mvm = data; 1067 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1068 struct iwl_probe_resp_data *probe_data; 1069 unsigned int link_id; 1070 1071 mvmvif->uploaded = false; 1072 1073 spin_lock_bh(&mvm->time_event_lock); 1074 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1075 spin_unlock_bh(&mvm->time_event_lock); 1076 1077 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1078 mvmvif->ap_sta = NULL; 1079 1080 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1081 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1082 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1083 mvmvif->link[link_id]->phy_ctxt = NULL; 1084 mvmvif->link[link_id]->active = 0; 1085 mvmvif->link[link_id]->igtk = NULL; 1086 } 1087 1088 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1089 lockdep_is_held(&mvm->mutex)); 1090 if (probe_data) 1091 kfree_rcu(probe_data, rcu_head); 1092 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1093 } 1094 1095 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1096 { 1097 iwl_mvm_stop_device(mvm); 1098 1099 mvm->cur_aid = 0; 1100 1101 mvm->scan_status = 0; 1102 mvm->ps_disabled = false; 1103 mvm->rfkill_safe_init_done = false; 1104 1105 /* just in case one was running */ 1106 iwl_mvm_cleanup_roc_te(mvm); 1107 ieee80211_remain_on_channel_expired(mvm->hw); 1108 1109 iwl_mvm_ftm_restart(mvm); 1110 1111 /* 1112 * cleanup all interfaces, even inactive ones, as some might have 1113 * gone down during the HW restart 1114 */ 1115 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1116 1117 mvm->p2p_device_vif = NULL; 1118 1119 iwl_mvm_reset_phy_ctxts(mvm); 1120 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1121 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1122 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1123 1124 ieee80211_wake_queues(mvm->hw); 1125 1126 mvm->rx_ba_sessions = 0; 1127 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1128 mvm->monitor_on = false; 1129 #ifdef CONFIG_IWLWIFI_DEBUGFS 1130 mvm->beacon_inject_active = false; 1131 #endif 1132 1133 /* keep statistics ticking */ 1134 iwl_mvm_accu_radio_stats(mvm); 1135 } 1136 1137 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1138 { 1139 int ret; 1140 1141 lockdep_assert_held(&mvm->mutex); 1142 1143 ret = iwl_mvm_mei_get_ownership(mvm); 1144 if (ret) 1145 return ret; 1146 1147 if (mvm->mei_nvm_data) { 1148 /* We got the NIC, we can now free the MEI NVM data */ 1149 kfree(mvm->mei_nvm_data); 1150 mvm->mei_nvm_data = NULL; 1151 1152 /* 1153 * We can't free the nvm_data we allocated based on the SAP 1154 * data because we registered to cfg80211 with the channels 1155 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1156 * just in order to be able free it later. 1157 * NULLify nvm_data so that we will read the NVM from the 1158 * firmware this time. 1159 */ 1160 mvm->temp_nvm_data = mvm->nvm_data; 1161 mvm->nvm_data = NULL; 1162 } 1163 1164 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1165 /* 1166 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1167 * so later code will - from now on - see that we're doing it. 1168 */ 1169 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1170 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1171 /* Clean up some internal and mac80211 state on restart */ 1172 iwl_mvm_restart_cleanup(mvm); 1173 } 1174 ret = iwl_mvm_up(mvm); 1175 1176 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1177 NULL); 1178 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1179 NULL); 1180 1181 mvm->last_reset_or_resume_time_jiffies = jiffies; 1182 1183 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1184 /* Something went wrong - we need to finish some cleanup 1185 * that normally iwl_mvm_mac_restart_complete() below 1186 * would do. 1187 */ 1188 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1189 } 1190 1191 return ret; 1192 } 1193 1194 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1195 { 1196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1197 int ret; 1198 int retry, max_retry = 0; 1199 1200 mutex_lock(&mvm->mutex); 1201 1202 /* we are starting the mac not in error flow, and restart is enabled */ 1203 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1204 iwlwifi_mod_params.fw_restart) { 1205 max_retry = IWL_MAX_INIT_RETRY; 1206 /* 1207 * This will prevent mac80211 recovery flows to trigger during 1208 * init failures 1209 */ 1210 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1211 } 1212 1213 for (retry = 0; retry <= max_retry; retry++) { 1214 ret = __iwl_mvm_mac_start(mvm); 1215 if (!ret || mvm->pldr_sync) 1216 break; 1217 1218 IWL_ERR(mvm, "mac start retry %d\n", retry); 1219 } 1220 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1221 1222 mutex_unlock(&mvm->mutex); 1223 1224 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1225 1226 return ret; 1227 } 1228 1229 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1230 { 1231 int ret; 1232 1233 mutex_lock(&mvm->mutex); 1234 1235 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1236 1237 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1238 if (ret) 1239 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1240 ret); 1241 1242 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1243 1244 /* 1245 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1246 * of packets the FW sent out, so we must reconnect. 1247 */ 1248 iwl_mvm_teardown_tdls_peers(mvm); 1249 1250 mutex_unlock(&mvm->mutex); 1251 } 1252 1253 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1254 enum ieee80211_reconfig_type reconfig_type) 1255 { 1256 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1257 1258 switch (reconfig_type) { 1259 case IEEE80211_RECONFIG_TYPE_RESTART: 1260 iwl_mvm_restart_complete(mvm); 1261 break; 1262 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1263 break; 1264 } 1265 } 1266 1267 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1268 { 1269 lockdep_assert_held(&mvm->mutex); 1270 1271 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1272 1273 /* firmware counters are obviously reset now, but we shouldn't 1274 * partially track so also clear the fw_reset_accu counters. 1275 */ 1276 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1277 1278 /* async_handlers_wk is now blocked */ 1279 1280 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1281 iwl_mvm_rm_aux_sta(mvm); 1282 1283 iwl_mvm_stop_device(mvm); 1284 1285 iwl_mvm_async_handlers_purge(mvm); 1286 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1287 1288 /* 1289 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1290 * hw (as restart_complete() won't be called in this case) and mac80211 1291 * won't execute the restart. 1292 * But make sure to cleanup interfaces that have gone down before/during 1293 * HW restart was requested. 1294 */ 1295 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1296 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1297 &mvm->status)) 1298 ieee80211_iterate_interfaces(mvm->hw, 0, 1299 iwl_mvm_cleanup_iterator, mvm); 1300 1301 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1302 * make sure there's nothing left there and warn if any is found. 1303 */ 1304 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1305 int i; 1306 1307 for (i = 0; i < mvm->max_scans; i++) { 1308 if (WARN_ONCE(mvm->scan_uid_status[i], 1309 "UMAC scan UID %d status was not cleaned\n", 1310 i)) 1311 mvm->scan_uid_status[i] = 0; 1312 } 1313 } 1314 } 1315 1316 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1317 { 1318 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1319 1320 flush_work(&mvm->async_handlers_wk); 1321 flush_work(&mvm->add_stream_wk); 1322 1323 /* 1324 * Lock and clear the firmware running bit here already, so that 1325 * new commands coming in elsewhere, e.g. from debugfs, will not 1326 * be able to proceed. This is important here because one of those 1327 * debugfs files causes the firmware dump to be triggered, and if we 1328 * don't stop debugfs accesses before canceling that it could be 1329 * retriggered after we flush it but before we've cleared the bit. 1330 */ 1331 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1332 1333 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1334 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1335 1336 /* 1337 * The work item could be running or queued if the 1338 * ROC time event stops just as we get here. 1339 */ 1340 flush_work(&mvm->roc_done_wk); 1341 1342 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1343 1344 mutex_lock(&mvm->mutex); 1345 __iwl_mvm_mac_stop(mvm); 1346 mutex_unlock(&mvm->mutex); 1347 1348 /* 1349 * The worker might have been waiting for the mutex, let it run and 1350 * discover that its list is now empty. 1351 */ 1352 cancel_work_sync(&mvm->async_handlers_wk); 1353 } 1354 1355 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1356 { 1357 u16 i; 1358 1359 lockdep_assert_held(&mvm->mutex); 1360 1361 for (i = 0; i < NUM_PHY_CTX; i++) 1362 if (!mvm->phy_ctxts[i].ref) 1363 return &mvm->phy_ctxts[i]; 1364 1365 IWL_ERR(mvm, "No available PHY context\n"); 1366 return NULL; 1367 } 1368 1369 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1370 s16 tx_power) 1371 { 1372 u32 cmd_id = REDUCE_TX_POWER_CMD; 1373 int len; 1374 struct iwl_dev_tx_power_cmd cmd = { 1375 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1376 .common.mac_context_id = 1377 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1378 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1379 }; 1380 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1381 IWL_FW_CMD_VER_UNKNOWN); 1382 1383 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1384 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1385 1386 if (cmd_ver == 7) 1387 len = sizeof(cmd.v7); 1388 else if (cmd_ver == 6) 1389 len = sizeof(cmd.v6); 1390 else if (fw_has_api(&mvm->fw->ucode_capa, 1391 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1392 len = sizeof(cmd.v5); 1393 else if (fw_has_capa(&mvm->fw->ucode_capa, 1394 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1395 len = sizeof(cmd.v4); 1396 else 1397 len = sizeof(cmd.v3); 1398 1399 /* all structs have the same common part, add it */ 1400 len += sizeof(cmd.common); 1401 1402 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1403 } 1404 1405 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1406 struct ieee80211_vif *vif, 1407 struct ieee80211_bss_conf *link_conf) 1408 { 1409 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1410 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1411 int ret; 1412 1413 mutex_lock(&mvm->mutex); 1414 1415 if (vif->type == NL80211_IFTYPE_STATION) { 1416 struct iwl_mvm_sta *mvmsta; 1417 unsigned int link_id = link_conf->link_id; 1418 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1419 1420 mvmvif->csa_bcn_pending = false; 1421 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1422 1423 if (WARN_ON(!mvmsta)) { 1424 ret = -EIO; 1425 goto out_unlock; 1426 } 1427 1428 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1429 if (mvm->mld_api_is_used) 1430 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1431 else 1432 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1433 1434 if (!fw_has_capa(&mvm->fw->ucode_capa, 1435 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1436 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1437 if (ret) 1438 goto out_unlock; 1439 1440 iwl_mvm_stop_session_protection(mvm, vif); 1441 } 1442 } 1443 1444 mvmvif->ps_disabled = false; 1445 1446 ret = iwl_mvm_power_update_ps(mvm); 1447 1448 out_unlock: 1449 if (mvmvif->csa_failed) 1450 ret = -EIO; 1451 mutex_unlock(&mvm->mutex); 1452 1453 return ret; 1454 } 1455 1456 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1457 struct ieee80211_vif *vif) 1458 { 1459 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1460 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1461 struct iwl_chan_switch_te_cmd cmd = { 1462 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1463 mvmvif->color)), 1464 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1465 }; 1466 1467 /* 1468 * In the new flow since FW is in charge of the timing, 1469 * if driver has canceled the channel switch he will receive the 1470 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1471 */ 1472 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1473 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1474 return; 1475 1476 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1477 1478 mutex_lock(&mvm->mutex); 1479 if (!fw_has_capa(&mvm->fw->ucode_capa, 1480 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1481 iwl_mvm_remove_csa_period(mvm, vif); 1482 else 1483 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1484 WIDE_ID(MAC_CONF_GROUP, 1485 CHANNEL_SWITCH_TIME_EVENT_CMD), 1486 0, sizeof(cmd), &cmd)); 1487 mvmvif->csa_failed = true; 1488 mutex_unlock(&mvm->mutex); 1489 1490 /* If we're here, we can't support MLD */ 1491 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1492 } 1493 1494 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1495 { 1496 struct iwl_mvm_vif *mvmvif; 1497 struct ieee80211_vif *vif; 1498 1499 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1500 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1501 1502 /* Trigger disconnect (should clear the CSA state) */ 1503 ieee80211_chswitch_done(vif, false, 0); 1504 } 1505 1506 static u8 1507 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1508 { 1509 int data_start; 1510 int control_start; 1511 int bw; 1512 1513 if (chandef->width == NL80211_CHAN_WIDTH_320) 1514 bw = 320; 1515 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1516 bw = 160; 1517 else 1518 return 0; 1519 1520 /* data is bw wide so the start is half the width */ 1521 data_start = chandef->center_freq1 - bw / 2; 1522 /* control is 20Mhz width */ 1523 control_start = chandef->chan->center_freq - 10; 1524 1525 return (control_start - data_start) / 80; 1526 } 1527 1528 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1529 struct ieee80211_vif *vif) 1530 { 1531 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1532 int ret; 1533 1534 lockdep_assert_held(&mvm->mutex); 1535 1536 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1537 if (ret) { 1538 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1539 return ret; 1540 } 1541 1542 /* Only queue for this station is the mcast queue, 1543 * which shouldn't be in TFD mask anyway 1544 */ 1545 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1546 vif->type, 1547 IWL_STA_MULTICAST); 1548 } 1549 1550 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1551 struct ieee80211_vif *vif) 1552 { 1553 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1554 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1555 int ret; 1556 int i; 1557 1558 mutex_lock(&mvm->mutex); 1559 1560 mvmvif->mvm = mvm; 1561 1562 /* the first link always points to the default one */ 1563 mvmvif->link[0] = &mvmvif->deflink; 1564 1565 /* 1566 * Not much to do here. The stack will not allow interface 1567 * types or combinations that we didn't advertise, so we 1568 * don't really have to check the types. 1569 */ 1570 1571 /* make sure that beacon statistics don't go backwards with FW reset */ 1572 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1573 for_each_mvm_vif_valid_link(mvmvif, i) 1574 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1575 mvmvif->link[i]->beacon_stats.num_beacons; 1576 1577 /* Allocate resources for the MAC context, and add it to the fw */ 1578 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1579 if (ret) 1580 goto out; 1581 1582 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1583 1584 /* Currently not much to do for NAN */ 1585 if (vif->type == NL80211_IFTYPE_NAN) { 1586 ret = 0; 1587 goto out; 1588 } 1589 1590 /* 1591 * The AP binding flow can be done only after the beacon 1592 * template is configured (which happens only in the mac80211 1593 * start_ap() flow), and adding the broadcast station can happen 1594 * only after the binding. 1595 * In addition, since modifying the MAC before adding a bcast 1596 * station is not allowed by the FW, delay the adding of MAC context to 1597 * the point where we can also add the bcast station. 1598 * In short: there's not much we can do at this point, other than 1599 * allocating resources :) 1600 */ 1601 if (vif->type == NL80211_IFTYPE_AP || 1602 vif->type == NL80211_IFTYPE_ADHOC) { 1603 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1604 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1605 ret = 0; 1606 goto out; 1607 } 1608 1609 mvmvif->features |= hw->netdev_features; 1610 1611 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1612 if (ret) 1613 goto out_unlock; 1614 1615 ret = iwl_mvm_power_update_mac(mvm); 1616 if (ret) 1617 goto out_remove_mac; 1618 1619 /* beacon filtering */ 1620 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1621 if (ret) 1622 goto out_remove_mac; 1623 1624 if (!mvm->bf_allowed_vif && 1625 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1626 mvm->bf_allowed_vif = mvmvif; 1627 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1628 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1629 } 1630 1631 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1632 mvm->p2p_device_vif = vif; 1633 1634 iwl_mvm_tcm_add_vif(mvm, vif); 1635 INIT_DELAYED_WORK(&mvmvif->csa_work, 1636 iwl_mvm_channel_switch_disconnect_wk); 1637 1638 if (vif->type == NL80211_IFTYPE_MONITOR) { 1639 mvm->monitor_on = true; 1640 mvm->monitor_p80 = 1641 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1642 } 1643 1644 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1645 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1646 1647 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1648 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1649 !mvm->csme_vif && mvm->mei_registered) { 1650 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1651 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1652 mvm->csme_vif = vif; 1653 } 1654 1655 out: 1656 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1657 vif->type == NL80211_IFTYPE_ADHOC)) 1658 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1659 1660 goto out_unlock; 1661 1662 out_remove_mac: 1663 mvmvif->deflink.phy_ctxt = NULL; 1664 iwl_mvm_mac_ctxt_remove(mvm, vif); 1665 out_unlock: 1666 mutex_unlock(&mvm->mutex); 1667 1668 return ret; 1669 } 1670 1671 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1672 struct ieee80211_vif *vif) 1673 { 1674 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1675 /* 1676 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1677 * We assume here that all the packets sent to the OFFCHANNEL 1678 * queue are sent in ROC session. 1679 */ 1680 flush_work(&mvm->roc_done_wk); 1681 } 1682 } 1683 1684 /* This function is doing the common part of removing the interface for 1685 * both - MLD and non-MLD modes. Returns true if removing the interface 1686 * is done 1687 */ 1688 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1689 struct ieee80211_vif *vif) 1690 { 1691 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1692 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1693 struct iwl_probe_resp_data *probe_data; 1694 1695 iwl_mvm_prepare_mac_removal(mvm, vif); 1696 1697 if (!(vif->type == NL80211_IFTYPE_AP || 1698 vif->type == NL80211_IFTYPE_ADHOC)) 1699 iwl_mvm_tcm_rm_vif(mvm, vif); 1700 1701 mutex_lock(&mvm->mutex); 1702 1703 if (vif == mvm->csme_vif) { 1704 iwl_mei_set_netdev(NULL); 1705 mvm->csme_vif = NULL; 1706 } 1707 1708 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1709 lockdep_is_held(&mvm->mutex)); 1710 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1711 if (probe_data) 1712 kfree_rcu(probe_data, rcu_head); 1713 1714 if (mvm->bf_allowed_vif == mvmvif) { 1715 mvm->bf_allowed_vif = NULL; 1716 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1717 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1718 } 1719 1720 if (vif->bss_conf.ftm_responder) 1721 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1722 1723 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1724 1725 /* 1726 * For AP/GO interface, the tear down of the resources allocated to the 1727 * interface is be handled as part of the stop_ap flow. 1728 */ 1729 if (vif->type == NL80211_IFTYPE_AP || 1730 vif->type == NL80211_IFTYPE_ADHOC) { 1731 #ifdef CONFIG_NL80211_TESTMODE 1732 if (vif == mvm->noa_vif) { 1733 mvm->noa_vif = NULL; 1734 mvm->noa_duration = 0; 1735 } 1736 #endif 1737 return true; 1738 } 1739 1740 iwl_mvm_power_update_mac(mvm); 1741 return false; 1742 } 1743 1744 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1745 struct ieee80211_vif *vif) 1746 { 1747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1748 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1749 1750 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1751 goto out; 1752 1753 /* Before the interface removal, mac80211 would cancel the ROC, and the 1754 * ROC worker would be scheduled if needed. The worker would be flushed 1755 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1756 * binding etc. so nothing needs to be done here. 1757 */ 1758 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1759 if (mvmvif->deflink.phy_ctxt) { 1760 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1761 mvmvif->deflink.phy_ctxt = NULL; 1762 } 1763 mvm->p2p_device_vif = NULL; 1764 } 1765 1766 iwl_mvm_mac_ctxt_remove(mvm, vif); 1767 1768 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1769 1770 if (vif->type == NL80211_IFTYPE_MONITOR) 1771 mvm->monitor_on = false; 1772 1773 out: 1774 if (vif->type == NL80211_IFTYPE_AP || 1775 vif->type == NL80211_IFTYPE_ADHOC) { 1776 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1777 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1778 } 1779 1780 mutex_unlock(&mvm->mutex); 1781 } 1782 1783 struct iwl_mvm_mc_iter_data { 1784 struct iwl_mvm *mvm; 1785 int port_id; 1786 }; 1787 1788 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1789 struct ieee80211_vif *vif) 1790 { 1791 struct iwl_mvm_mc_iter_data *data = _data; 1792 struct iwl_mvm *mvm = data->mvm; 1793 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1794 struct iwl_host_cmd hcmd = { 1795 .id = MCAST_FILTER_CMD, 1796 .flags = CMD_ASYNC, 1797 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1798 }; 1799 int ret, len; 1800 1801 /* if we don't have free ports, mcast frames will be dropped */ 1802 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1803 return; 1804 1805 if (vif->type != NL80211_IFTYPE_STATION || 1806 !vif->cfg.assoc) 1807 return; 1808 1809 cmd->port_id = data->port_id++; 1810 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1811 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1812 1813 hcmd.len[0] = len; 1814 hcmd.data[0] = cmd; 1815 1816 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1817 if (ret) 1818 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1819 } 1820 1821 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1822 { 1823 struct iwl_mvm_mc_iter_data iter_data = { 1824 .mvm = mvm, 1825 }; 1826 int ret; 1827 1828 lockdep_assert_held(&mvm->mutex); 1829 1830 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1831 return; 1832 1833 ieee80211_iterate_active_interfaces_atomic( 1834 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1835 iwl_mvm_mc_iface_iterator, &iter_data); 1836 1837 /* 1838 * Send a (synchronous) ech command so that we wait for the 1839 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1840 * the interface iterator. Otherwise, we might get here over 1841 * and over again (by userspace just sending a lot of these) 1842 * and the CPU can send them faster than the firmware can 1843 * process them. 1844 * Note that the CPU is still faster - but with this we'll 1845 * actually send fewer commands overall because the CPU will 1846 * not schedule the work in mac80211 as frequently if it's 1847 * still running when rescheduled (possibly multiple times). 1848 */ 1849 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1850 if (ret) 1851 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1852 } 1853 1854 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1855 struct netdev_hw_addr_list *mc_list) 1856 { 1857 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1858 struct iwl_mcast_filter_cmd *cmd; 1859 struct netdev_hw_addr *addr; 1860 int addr_count; 1861 bool pass_all; 1862 int len; 1863 1864 addr_count = netdev_hw_addr_list_count(mc_list); 1865 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1866 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1867 if (pass_all) 1868 addr_count = 0; 1869 1870 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1871 cmd = kzalloc(len, GFP_ATOMIC); 1872 if (!cmd) 1873 return 0; 1874 1875 if (pass_all) { 1876 cmd->pass_all = 1; 1877 return (u64)(unsigned long)cmd; 1878 } 1879 1880 netdev_hw_addr_list_for_each(addr, mc_list) { 1881 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1882 cmd->count, addr->addr); 1883 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1884 addr->addr, ETH_ALEN); 1885 cmd->count++; 1886 } 1887 1888 return (u64)(unsigned long)cmd; 1889 } 1890 1891 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1892 unsigned int changed_flags, 1893 unsigned int *total_flags, u64 multicast) 1894 { 1895 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1896 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1897 1898 mutex_lock(&mvm->mutex); 1899 1900 /* replace previous configuration */ 1901 kfree(mvm->mcast_filter_cmd); 1902 mvm->mcast_filter_cmd = cmd; 1903 1904 if (!cmd) 1905 goto out; 1906 1907 if (changed_flags & FIF_ALLMULTI) 1908 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1909 1910 if (cmd->pass_all) 1911 cmd->count = 0; 1912 1913 iwl_mvm_recalc_multicast(mvm); 1914 out: 1915 mutex_unlock(&mvm->mutex); 1916 *total_flags = 0; 1917 } 1918 1919 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1920 struct ieee80211_vif *vif, 1921 unsigned int filter_flags, 1922 unsigned int changed_flags) 1923 { 1924 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1925 1926 /* We support only filter for probe requests */ 1927 if (!(changed_flags & FIF_PROBE_REQ)) 1928 return; 1929 1930 /* Supported only for p2p client interfaces */ 1931 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1932 !vif->p2p) 1933 return; 1934 1935 mutex_lock(&mvm->mutex); 1936 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1937 mutex_unlock(&mvm->mutex); 1938 } 1939 1940 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1941 { 1942 struct iwl_mu_group_mgmt_cmd cmd = {}; 1943 1944 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1945 WLAN_MEMBERSHIP_LEN); 1946 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1947 WLAN_USER_POSITION_LEN); 1948 1949 return iwl_mvm_send_cmd_pdu(mvm, 1950 WIDE_ID(DATA_PATH_GROUP, 1951 UPDATE_MU_GROUPS_CMD), 1952 0, sizeof(cmd), &cmd); 1953 } 1954 1955 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1956 struct ieee80211_vif *vif) 1957 { 1958 if (vif->bss_conf.mu_mimo_owner) { 1959 struct iwl_mu_group_mgmt_notif *notif = _data; 1960 1961 /* 1962 * MU-MIMO Group Id action frame is little endian. We treat 1963 * the data received from firmware as if it came from the 1964 * action frame, so no conversion is needed. 1965 */ 1966 ieee80211_update_mu_groups(vif, 0, 1967 (u8 *)¬if->membership_status, 1968 (u8 *)¬if->user_position); 1969 } 1970 } 1971 1972 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1973 struct iwl_rx_cmd_buffer *rxb) 1974 { 1975 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1976 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1977 1978 ieee80211_iterate_active_interfaces_atomic( 1979 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1980 iwl_mvm_mu_mimo_iface_iterator, notif); 1981 } 1982 1983 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1984 { 1985 u8 byte_num = ppe_pos_bit / 8; 1986 u8 bit_num = ppe_pos_bit % 8; 1987 u8 residue_bits; 1988 u8 res; 1989 1990 if (bit_num <= 5) 1991 return (ppe[byte_num] >> bit_num) & 1992 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1993 1994 /* 1995 * If bit_num > 5, we have to combine bits with next byte. 1996 * Calculate how many bits we need to take from current byte (called 1997 * here "residue_bits"), and add them to bits from next byte. 1998 */ 1999 2000 residue_bits = 8 - bit_num; 2001 2002 res = (ppe[byte_num + 1] & 2003 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2004 residue_bits; 2005 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2006 2007 return res; 2008 } 2009 2010 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2011 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2012 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2013 bool inheritance) 2014 { 2015 int i; 2016 2017 /* 2018 * FW currently supports only nss == MAX_HE_SUPP_NSS 2019 * 2020 * If nss > MAX: we can ignore values we don't support 2021 * If nss < MAX: we can set zeros in other streams 2022 */ 2023 if (nss > MAX_HE_SUPP_NSS) { 2024 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2025 MAX_HE_SUPP_NSS); 2026 nss = MAX_HE_SUPP_NSS; 2027 } 2028 2029 for (i = 0; i < nss; i++) { 2030 u8 ru_index_tmp = ru_index_bitmap << 1; 2031 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2032 u8 bw; 2033 2034 for (bw = 0; 2035 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2036 bw++) { 2037 ru_index_tmp >>= 1; 2038 2039 /* 2040 * According to the 11be spec, if for a specific BW the PPE Thresholds 2041 * isn't present - it should inherit the thresholds from the last 2042 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2043 * this inheritance - continue in this case 2044 */ 2045 if (!(ru_index_tmp & 1)) { 2046 if (inheritance) 2047 goto set_thresholds; 2048 else 2049 continue; 2050 } 2051 2052 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2053 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2054 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2055 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2056 2057 set_thresholds: 2058 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2059 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2060 } 2061 } 2062 } 2063 2064 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2065 struct ieee80211_link_sta *link_sta, 2066 struct iwl_he_pkt_ext_v2 *pkt_ext, 2067 bool inheritance) 2068 { 2069 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2070 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2071 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2072 u8 ru_index_bitmap = 2073 u8_get_bits(*ppe, 2074 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2075 /* Starting after PPE header */ 2076 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2077 2078 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2079 inheritance); 2080 } 2081 2082 static int 2083 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2084 u8 nominal_padding) 2085 { 2086 int low_th = -1; 2087 int high_th = -1; 2088 int i; 2089 2090 /* all the macros are the same for EHT and HE */ 2091 switch (nominal_padding) { 2092 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2093 low_th = IWL_HE_PKT_EXT_NONE; 2094 high_th = IWL_HE_PKT_EXT_NONE; 2095 break; 2096 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2097 low_th = IWL_HE_PKT_EXT_BPSK; 2098 high_th = IWL_HE_PKT_EXT_NONE; 2099 break; 2100 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2101 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2102 low_th = IWL_HE_PKT_EXT_NONE; 2103 high_th = IWL_HE_PKT_EXT_BPSK; 2104 break; 2105 } 2106 2107 if (low_th < 0 || high_th < 0) 2108 return -EINVAL; 2109 2110 /* Set the PPE thresholds accordingly */ 2111 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2112 u8 bw; 2113 2114 for (bw = 0; 2115 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2116 bw++) { 2117 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2118 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2119 } 2120 } 2121 2122 return 0; 2123 } 2124 2125 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2126 u8 nominal_padding) 2127 { 2128 int i; 2129 2130 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2131 u8 bw; 2132 2133 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2134 bw++) { 2135 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2136 2137 if (nominal_padding > 2138 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2139 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2140 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2141 else if (nominal_padding == 2142 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2143 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2144 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2145 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2146 } 2147 } 2148 } 2149 2150 /* Set the pkt_ext field according to PPE Thresholds element */ 2151 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2152 struct ieee80211_link_sta *link_sta, 2153 struct iwl_he_pkt_ext_v2 *pkt_ext) 2154 { 2155 u8 nominal_padding; 2156 int i, ret = 0; 2157 2158 if (WARN_ON(!link_sta)) 2159 return -EINVAL; 2160 2161 /* Initialize the PPE thresholds to "None" (7), as described in Table 2162 * 9-262ac of 80211.ax/D3.0. 2163 */ 2164 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2165 sizeof(struct iwl_he_pkt_ext_v2)); 2166 2167 if (link_sta->eht_cap.has_eht) { 2168 nominal_padding = 2169 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2170 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2171 2172 /* If PPE Thresholds exists, parse them into a FW-familiar 2173 * format. 2174 */ 2175 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2176 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2177 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2178 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2179 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2180 u8 ru_index_bitmap = 2181 u16_get_bits(*ppe, 2182 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2183 /* Starting after PPE header */ 2184 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2185 2186 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2187 ppe, ppe_pos_bit, true); 2188 /* EHT PPE Thresholds doesn't exist - set the API according to 2189 * HE PPE Tresholds 2190 */ 2191 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2192 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2193 /* Even though HE Capabilities IE doesn't contain PPE 2194 * Thresholds for BW 320Mhz, thresholds for this BW will 2195 * be filled in with the same values as 160Mhz, due to 2196 * the inheritance, as required. 2197 */ 2198 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2199 true); 2200 2201 /* According to the requirements, for MCSs 12-13 the 2202 * maximum value between HE PPE Threshold and Common 2203 * Nominal Packet Padding needs to be taken 2204 */ 2205 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2206 2207 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2208 * take the Thresholds from Common Nominal Packet Padding field 2209 */ 2210 } else { 2211 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2212 nominal_padding); 2213 } 2214 } else if (link_sta->he_cap.has_he) { 2215 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2216 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2217 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2218 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2219 false); 2220 /* PPE Thresholds doesn't exist - set the API PPE values 2221 * according to Common Nominal Packet Padding field. 2222 */ 2223 } else { 2224 nominal_padding = 2225 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2226 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2227 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2228 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2229 nominal_padding); 2230 } 2231 } 2232 2233 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2234 int bw; 2235 2236 for (bw = 0; 2237 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2238 bw++) { 2239 u8 *qam_th = 2240 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2241 2242 IWL_DEBUG_HT(mvm, 2243 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2244 i, bw, qam_th[0], qam_th[1]); 2245 } 2246 } 2247 return ret; 2248 } 2249 2250 /* 2251 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2252 * is enabled or not 2253 */ 2254 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2255 const struct iwl_mvm_vif_link_info *link_info, 2256 struct iwl_he_backoff_conf *trig_based_txf) 2257 { 2258 int i; 2259 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2260 bool mu_edca_enabled = true; 2261 2262 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2263 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2264 &link_info->queue_params[i].mu_edca_param_rec; 2265 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2266 2267 if (!link_info->queue_params[i].mu_edca) { 2268 mu_edca_enabled = false; 2269 break; 2270 } 2271 2272 trig_based_txf[ac].cwmin = 2273 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2274 trig_based_txf[ac].cwmax = 2275 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2276 trig_based_txf[ac].aifsn = 2277 cpu_to_le16(mu_edca->aifsn & 0xf); 2278 trig_based_txf[ac].mu_time = 2279 cpu_to_le16(mu_edca->mu_edca_timer); 2280 } 2281 2282 return mu_edca_enabled; 2283 } 2284 2285 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2286 { 2287 const struct ieee80211_supported_band *sband; 2288 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2289 2290 /* This capability is the same for all bands, 2291 * so take it from one of them. 2292 */ 2293 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2294 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2295 2296 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2297 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2298 } 2299 2300 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2301 struct ieee80211_link_sta *link_sta) 2302 { 2303 u8 *mac_cap_info = 2304 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2305 __le32 htc_flags = 0; 2306 2307 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2308 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2309 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2310 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2311 u8 link_adap = 2312 ((mac_cap_info[2] & 2313 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2314 (mac_cap_info[1] & 2315 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2316 2317 if (link_adap == 2) 2318 htc_flags |= 2319 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2320 else if (link_adap == 3) 2321 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2322 } 2323 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2324 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2325 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2326 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2327 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2328 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2329 2330 return htc_flags; 2331 } 2332 2333 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2334 struct ieee80211_vif *vif, u8 sta_id) 2335 { 2336 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2337 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2338 .sta_id = sta_id, 2339 .tid_limit = IWL_MAX_TID_COUNT, 2340 .bss_color = vif->bss_conf.he_bss_color.color, 2341 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2342 .frame_time_rts_th = 2343 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2344 }; 2345 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2346 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2347 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2348 int size; 2349 struct ieee80211_sta *sta; 2350 u32 flags; 2351 int i; 2352 void *cmd; 2353 2354 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2355 ver = 1; 2356 2357 switch (ver) { 2358 case 1: 2359 /* same layout as v2 except some data at the end */ 2360 cmd = &sta_ctxt_cmd_v2; 2361 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2362 break; 2363 case 2: 2364 cmd = &sta_ctxt_cmd_v2; 2365 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2366 break; 2367 case 3: 2368 cmd = &sta_ctxt_cmd; 2369 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2370 break; 2371 default: 2372 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2373 return; 2374 } 2375 2376 rcu_read_lock(); 2377 2378 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2379 if (IS_ERR_OR_NULL(sta)) { 2380 rcu_read_unlock(); 2381 WARN(1, "Can't find STA to configure HE\n"); 2382 return; 2383 } 2384 2385 if (!sta->deflink.he_cap.has_he) { 2386 rcu_read_unlock(); 2387 return; 2388 } 2389 2390 flags = 0; 2391 2392 /* Block 26-tone RU OFDMA transmissions */ 2393 if (mvmvif->deflink.he_ru_2mhz_block) 2394 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2395 2396 /* HTC flags */ 2397 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2398 2399 /* PPE Thresholds */ 2400 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2401 flags |= STA_CTXT_HE_PACKET_EXT; 2402 2403 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2404 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2405 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2406 2407 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2408 IEEE80211_HE_MAC_CAP2_ACK_EN) 2409 flags |= STA_CTXT_HE_ACK_ENABLED; 2410 2411 rcu_read_unlock(); 2412 2413 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2414 &sta_ctxt_cmd.trig_based_txf[0])) 2415 flags |= STA_CTXT_HE_MU_EDCA_CW; 2416 2417 if (vif->bss_conf.uora_exists) { 2418 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2419 2420 sta_ctxt_cmd.rand_alloc_ecwmin = 2421 vif->bss_conf.uora_ocw_range & 0x7; 2422 sta_ctxt_cmd.rand_alloc_ecwmax = 2423 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2424 } 2425 2426 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2427 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2428 2429 if (vif->bss_conf.nontransmitted) { 2430 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2431 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2432 vif->bss_conf.transmitter_bssid); 2433 sta_ctxt_cmd.max_bssid_indicator = 2434 vif->bss_conf.bssid_indicator; 2435 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2436 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2437 sta_ctxt_cmd.profile_periodicity = 2438 vif->bss_conf.profile_periodicity; 2439 } 2440 2441 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2442 2443 if (ver < 3) { 2444 /* fields before pkt_ext */ 2445 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2446 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2447 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2448 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2449 2450 /* pkt_ext */ 2451 for (i = 0; 2452 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2453 i++) { 2454 u8 bw; 2455 2456 for (bw = 0; 2457 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2458 bw++) { 2459 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2460 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2461 2462 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2463 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2464 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2465 } 2466 } 2467 2468 /* fields after pkt_ext */ 2469 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2470 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2471 sizeof(sta_ctxt_cmd_v2) - 2472 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2473 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2474 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2475 (u8 *)&sta_ctxt_cmd + 2476 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2477 sizeof(sta_ctxt_cmd) - 2478 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2479 sta_ctxt_cmd_v2.reserved3 = 0; 2480 } 2481 2482 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2483 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2484 } 2485 2486 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2487 u32 duration_override, unsigned int link_id) 2488 { 2489 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2490 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2491 2492 if (duration_override > duration) 2493 duration = duration_override; 2494 2495 /* Try really hard to protect the session and hear a beacon 2496 * The new session protection command allows us to protect the 2497 * session for a much longer time since the firmware will internally 2498 * create two events: a 300TU one with a very high priority that 2499 * won't be fragmented which should be enough for 99% of the cases, 2500 * and another one (which we configure here to be 900TU long) which 2501 * will have a slightly lower priority, but more importantly, can be 2502 * fragmented so that it'll allow other activities to run. 2503 */ 2504 if (fw_has_capa(&mvm->fw->ucode_capa, 2505 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2506 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2507 min_duration, false, 2508 link_id); 2509 else 2510 iwl_mvm_protect_session(mvm, vif, duration, 2511 min_duration, 500, false); 2512 } 2513 2514 /* Handle association common part to MLD and non-MLD modes */ 2515 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2516 struct ieee80211_vif *vif, 2517 u64 changes) 2518 { 2519 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2520 int ret; 2521 2522 /* The firmware tracks the MU-MIMO group on its own. 2523 * However, on HW restart we should restore this data. 2524 */ 2525 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2526 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2527 ret = iwl_mvm_update_mu_groups(mvm, vif); 2528 if (ret) 2529 IWL_ERR(mvm, 2530 "failed to update VHT MU_MIMO groups\n"); 2531 } 2532 2533 iwl_mvm_recalc_multicast(mvm); 2534 2535 /* reset rssi values */ 2536 mvmvif->bf_data.ave_beacon_signal = 0; 2537 2538 iwl_mvm_bt_coex_vif_change(mvm); 2539 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2540 IEEE80211_SMPS_AUTOMATIC); 2541 if (fw_has_capa(&mvm->fw->ucode_capa, 2542 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2543 iwl_mvm_config_scan(mvm); 2544 } 2545 2546 /* Execute the common part for MLD and non-MLD modes */ 2547 void 2548 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2549 struct ieee80211_vif *vif, 2550 struct ieee80211_bss_conf *link_conf, 2551 u64 changes) 2552 { 2553 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2554 int ret; 2555 2556 if (changes & BSS_CHANGED_BEACON_INFO) { 2557 /* We received a beacon from the associated AP so 2558 * remove the session protection. 2559 */ 2560 iwl_mvm_stop_session_protection(mvm, vif); 2561 2562 iwl_mvm_sf_update(mvm, vif, false); 2563 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2564 } 2565 2566 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2567 /* Send power command on every beacon change, 2568 * because we may have not enabled beacon abort yet. 2569 */ 2570 BSS_CHANGED_BEACON_INFO)) { 2571 ret = iwl_mvm_power_update_mac(mvm); 2572 if (ret) 2573 IWL_ERR(mvm, "failed to update power mode\n"); 2574 } 2575 2576 if (changes & BSS_CHANGED_CQM) { 2577 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2578 /* reset cqm events tracking */ 2579 mvmvif->bf_data.last_cqm_event = 0; 2580 if (mvmvif->bf_data.bf_enabled) { 2581 /* FIXME: need to update per link when FW API will 2582 * support it 2583 */ 2584 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2585 if (ret) 2586 IWL_ERR(mvm, 2587 "failed to update CQM thresholds\n"); 2588 } 2589 } 2590 2591 if (changes & BSS_CHANGED_BANDWIDTH) 2592 iwl_mvm_update_link_smps(vif, link_conf); 2593 } 2594 2595 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2596 struct ieee80211_vif *vif, 2597 struct ieee80211_bss_conf *bss_conf, 2598 u64 changes) 2599 { 2600 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2601 int ret; 2602 int i; 2603 2604 /* 2605 * Re-calculate the tsf id, as the leader-follower relations depend 2606 * on the beacon interval, which was not known when the station 2607 * interface was added. 2608 */ 2609 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2610 if ((vif->bss_conf.he_support && 2611 !iwlwifi_mod_params.disable_11ax) || 2612 (vif->bss_conf.eht_support && 2613 !iwlwifi_mod_params.disable_11be)) 2614 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2615 2616 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2617 } 2618 2619 /* Update MU EDCA params */ 2620 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2621 vif->cfg.assoc && 2622 ((vif->bss_conf.he_support && 2623 !iwlwifi_mod_params.disable_11ax) || 2624 (vif->bss_conf.eht_support && 2625 !iwlwifi_mod_params.disable_11be))) 2626 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2627 2628 /* 2629 * If we're not associated yet, take the (new) BSSID before associating 2630 * so the firmware knows. If we're already associated, then use the old 2631 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2632 * branch for disassociation below. 2633 */ 2634 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2635 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2636 2637 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2638 if (ret) 2639 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2640 2641 /* after sending it once, adopt mac80211 data */ 2642 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2643 mvmvif->associated = vif->cfg.assoc; 2644 2645 if (changes & BSS_CHANGED_ASSOC) { 2646 if (vif->cfg.assoc) { 2647 /* clear statistics to get clean beacon counter */ 2648 iwl_mvm_request_statistics(mvm, true); 2649 for_each_mvm_vif_valid_link(mvmvif, i) 2650 memset(&mvmvif->link[i]->beacon_stats, 0, 2651 sizeof(mvmvif->link[i]->beacon_stats)); 2652 2653 /* add quota for this interface */ 2654 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2655 if (ret) { 2656 IWL_ERR(mvm, "failed to update quotas\n"); 2657 return; 2658 } 2659 2660 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2661 &mvm->status) && 2662 !fw_has_capa(&mvm->fw->ucode_capa, 2663 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2664 /* 2665 * If we're restarting then the firmware will 2666 * obviously have lost synchronisation with 2667 * the AP. It will attempt to synchronise by 2668 * itself, but we can make it more reliable by 2669 * scheduling a session protection time event. 2670 * 2671 * The firmware needs to receive a beacon to 2672 * catch up with synchronisation, use 110% of 2673 * the beacon interval. 2674 * 2675 * Set a large maximum delay to allow for more 2676 * than a single interface. 2677 * 2678 * For new firmware versions, rely on the 2679 * firmware. This is relevant for DCM scenarios 2680 * only anyway. 2681 */ 2682 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2683 iwl_mvm_protect_session(mvm, vif, dur, dur, 2684 5 * dur, false); 2685 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2686 &mvm->status) && 2687 !vif->bss_conf.dtim_period) { 2688 /* 2689 * If we're not restarting and still haven't 2690 * heard a beacon (dtim period unknown) then 2691 * make sure we still have enough minimum time 2692 * remaining in the time event, since the auth 2693 * might actually have taken quite a while 2694 * (especially for SAE) and so the remaining 2695 * time could be small without us having heard 2696 * a beacon yet. 2697 */ 2698 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2699 } 2700 2701 iwl_mvm_sf_update(mvm, vif, false); 2702 iwl_mvm_power_vif_assoc(mvm, vif); 2703 if (vif->p2p) { 2704 iwl_mvm_update_smps(mvm, vif, 2705 IWL_MVM_SMPS_REQ_PROT, 2706 IEEE80211_SMPS_DYNAMIC, 0); 2707 } 2708 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2709 iwl_mvm_mei_host_disassociated(mvm); 2710 /* 2711 * If update fails - SF might be running in associated 2712 * mode while disassociated - which is forbidden. 2713 */ 2714 ret = iwl_mvm_sf_update(mvm, vif, false); 2715 WARN_ONCE(ret && 2716 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2717 &mvm->status), 2718 "Failed to update SF upon disassociation\n"); 2719 2720 /* 2721 * If we get an assert during the connection (after the 2722 * station has been added, but before the vif is set 2723 * to associated), mac80211 will re-add the station and 2724 * then configure the vif. Since the vif is not 2725 * associated, we would remove the station here and 2726 * this would fail the recovery. 2727 */ 2728 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2729 &mvm->status)) { 2730 /* first remove remaining keys */ 2731 iwl_mvm_sec_key_remove_ap(mvm, vif, 2732 &mvmvif->deflink, 0); 2733 2734 /* 2735 * Remove AP station now that 2736 * the MAC is unassoc 2737 */ 2738 ret = iwl_mvm_rm_sta_id(mvm, vif, 2739 mvmvif->deflink.ap_sta_id); 2740 if (ret) 2741 IWL_ERR(mvm, 2742 "failed to remove AP station\n"); 2743 2744 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2745 } 2746 2747 /* remove quota for this interface */ 2748 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2749 if (ret) 2750 IWL_ERR(mvm, "failed to update quotas\n"); 2751 2752 /* this will take the cleared BSSID from bss_conf */ 2753 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2754 if (ret) 2755 IWL_ERR(mvm, 2756 "failed to update MAC %pM (clear after unassoc)\n", 2757 vif->addr); 2758 } 2759 2760 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2761 } 2762 2763 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2764 changes); 2765 } 2766 2767 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2768 struct ieee80211_vif *vif, 2769 int *ret) 2770 { 2771 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2772 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2773 int i; 2774 2775 lockdep_assert_held(&mvm->mutex); 2776 2777 mvmvif->ap_assoc_sta_count = 0; 2778 2779 /* must be set before quota calculations */ 2780 mvmvif->ap_ibss_active = true; 2781 2782 /* send all the early keys to the device now */ 2783 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2784 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2785 2786 if (!key) 2787 continue; 2788 2789 mvmvif->ap_early_keys[i] = NULL; 2790 2791 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2792 if (*ret) 2793 return true; 2794 } 2795 2796 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2797 iwl_mvm_vif_set_low_latency(mvmvif, true, 2798 LOW_LATENCY_VIF_TYPE); 2799 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2800 } 2801 2802 /* power updated needs to be done before quotas */ 2803 iwl_mvm_power_update_mac(mvm); 2804 2805 return false; 2806 } 2807 2808 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2809 struct ieee80211_vif *vif, 2810 struct ieee80211_bss_conf *link_conf) 2811 { 2812 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2813 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2814 int ret; 2815 2816 mutex_lock(&mvm->mutex); 2817 2818 /* 2819 * Re-calculate the tsf id, as the leader-follower relations depend on 2820 * the beacon interval, which was not known when the AP interface 2821 * was added. 2822 */ 2823 if (vif->type == NL80211_IFTYPE_AP) 2824 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2825 2826 /* For older devices need to send beacon template before adding mac 2827 * context. For the newer, the beacon is a resource that belongs to a 2828 * MAC, so need to send beacon template after adding the mac. 2829 */ 2830 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2831 /* Add the mac context */ 2832 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2833 if (ret) 2834 goto out_unlock; 2835 2836 /* Send the beacon template */ 2837 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2838 if (ret) 2839 goto out_unlock; 2840 } else { 2841 /* Send the beacon template */ 2842 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2843 if (ret) 2844 goto out_unlock; 2845 2846 /* Add the mac context */ 2847 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2848 if (ret) 2849 goto out_unlock; 2850 } 2851 2852 /* Perform the binding */ 2853 ret = iwl_mvm_binding_add_vif(mvm, vif); 2854 if (ret) 2855 goto out_remove; 2856 2857 /* 2858 * This is not very nice, but the simplest: 2859 * For older FWs adding the mcast sta before the bcast station may 2860 * cause assert 0x2b00. 2861 * This is fixed in later FW so make the order of removal depend on 2862 * the TLV 2863 */ 2864 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2865 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2866 if (ret) 2867 goto out_unbind; 2868 /* 2869 * Send the bcast station. At this stage the TBTT and DTIM time 2870 * events are added and applied to the scheduler 2871 */ 2872 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2873 if (ret) { 2874 iwl_mvm_rm_mcast_sta(mvm, vif); 2875 goto out_unbind; 2876 } 2877 } else { 2878 /* 2879 * Send the bcast station. At this stage the TBTT and DTIM time 2880 * events are added and applied to the scheduler 2881 */ 2882 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2883 if (ret) 2884 goto out_unbind; 2885 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2886 if (ret) { 2887 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2888 goto out_unbind; 2889 } 2890 } 2891 2892 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2893 goto out_failed; 2894 2895 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2896 if (ret) 2897 goto out_failed; 2898 2899 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2900 if (vif->p2p && mvm->p2p_device_vif) 2901 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2902 2903 iwl_mvm_bt_coex_vif_change(mvm); 2904 2905 /* we don't support TDLS during DCM */ 2906 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2907 iwl_mvm_teardown_tdls_peers(mvm); 2908 2909 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2910 2911 goto out_unlock; 2912 2913 out_failed: 2914 iwl_mvm_power_update_mac(mvm); 2915 mvmvif->ap_ibss_active = false; 2916 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2917 iwl_mvm_rm_mcast_sta(mvm, vif); 2918 out_unbind: 2919 iwl_mvm_binding_remove_vif(mvm, vif); 2920 out_remove: 2921 iwl_mvm_mac_ctxt_remove(mvm, vif); 2922 out_unlock: 2923 mutex_unlock(&mvm->mutex); 2924 return ret; 2925 } 2926 2927 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2928 struct ieee80211_vif *vif, 2929 struct ieee80211_bss_conf *link_conf) 2930 { 2931 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2932 } 2933 2934 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2935 struct ieee80211_vif *vif) 2936 { 2937 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2938 } 2939 2940 /* Common part for MLD and non-MLD ops */ 2941 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2942 struct ieee80211_vif *vif) 2943 { 2944 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2945 2946 lockdep_assert_held(&mvm->mutex); 2947 2948 iwl_mvm_prepare_mac_removal(mvm, vif); 2949 2950 /* Handle AP stop while in CSA */ 2951 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2952 iwl_mvm_remove_time_event(mvm, mvmvif, 2953 &mvmvif->time_event_data); 2954 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2955 mvmvif->csa_countdown = false; 2956 } 2957 2958 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2959 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2960 mvm->csa_tx_block_bcn_timeout = 0; 2961 } 2962 2963 mvmvif->ap_ibss_active = false; 2964 mvm->ap_last_beacon_gp2 = 0; 2965 2966 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2967 iwl_mvm_vif_set_low_latency(mvmvif, false, 2968 LOW_LATENCY_VIF_TYPE); 2969 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2970 } 2971 2972 iwl_mvm_bt_coex_vif_change(mvm); 2973 } 2974 2975 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2976 struct ieee80211_vif *vif, 2977 struct ieee80211_bss_conf *link_conf) 2978 { 2979 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2980 2981 mutex_lock(&mvm->mutex); 2982 2983 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2984 2985 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2986 if (vif->p2p && mvm->p2p_device_vif) 2987 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2988 2989 iwl_mvm_update_quotas(mvm, false, NULL); 2990 2991 iwl_mvm_ftm_responder_clear(mvm, vif); 2992 2993 /* 2994 * This is not very nice, but the simplest: 2995 * For older FWs removing the mcast sta before the bcast station may 2996 * cause assert 0x2b00. 2997 * This is fixed in later FW (which will stop beaconing when removing 2998 * bcast station). 2999 * So make the order of removal depend on the TLV 3000 */ 3001 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3002 iwl_mvm_rm_mcast_sta(mvm, vif); 3003 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3004 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3005 iwl_mvm_rm_mcast_sta(mvm, vif); 3006 iwl_mvm_binding_remove_vif(mvm, vif); 3007 3008 iwl_mvm_power_update_mac(mvm); 3009 3010 iwl_mvm_mac_ctxt_remove(mvm, vif); 3011 3012 mutex_unlock(&mvm->mutex); 3013 } 3014 3015 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3016 struct ieee80211_vif *vif, 3017 struct ieee80211_bss_conf *link_conf) 3018 { 3019 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3020 } 3021 3022 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3023 struct ieee80211_vif *vif) 3024 { 3025 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3026 } 3027 3028 static void 3029 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3030 struct ieee80211_vif *vif, 3031 struct ieee80211_bss_conf *bss_conf, 3032 u64 changes) 3033 { 3034 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3035 3036 /* Changes will be applied when the AP/IBSS is started */ 3037 if (!mvmvif->ap_ibss_active) 3038 return; 3039 3040 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3041 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3042 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3043 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3044 3045 /* Need to send a new beacon template to the FW */ 3046 if (changes & BSS_CHANGED_BEACON && 3047 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3048 IWL_WARN(mvm, "Failed updating beacon data\n"); 3049 3050 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3051 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3052 3053 if (ret) 3054 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3055 ret); 3056 } 3057 3058 } 3059 3060 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3061 struct ieee80211_vif *vif, 3062 struct ieee80211_bss_conf *bss_conf, 3063 u64 changes) 3064 { 3065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3066 3067 mutex_lock(&mvm->mutex); 3068 3069 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3070 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3071 3072 switch (vif->type) { 3073 case NL80211_IFTYPE_STATION: 3074 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3075 break; 3076 case NL80211_IFTYPE_AP: 3077 case NL80211_IFTYPE_ADHOC: 3078 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3079 break; 3080 case NL80211_IFTYPE_MONITOR: 3081 if (changes & BSS_CHANGED_MU_GROUPS) 3082 iwl_mvm_update_mu_groups(mvm, vif); 3083 break; 3084 default: 3085 /* shouldn't happen */ 3086 WARN_ON_ONCE(1); 3087 } 3088 3089 if (changes & BSS_CHANGED_TXPOWER) { 3090 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3091 bss_conf->txpower); 3092 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3093 } 3094 3095 mutex_unlock(&mvm->mutex); 3096 } 3097 3098 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3099 struct ieee80211_scan_request *hw_req) 3100 { 3101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3102 int ret; 3103 3104 if (hw_req->req.n_channels == 0 || 3105 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3106 return -EINVAL; 3107 3108 mutex_lock(&mvm->mutex); 3109 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3110 mutex_unlock(&mvm->mutex); 3111 3112 return ret; 3113 } 3114 3115 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3116 struct ieee80211_vif *vif) 3117 { 3118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3119 3120 mutex_lock(&mvm->mutex); 3121 3122 /* Due to a race condition, it's possible that mac80211 asks 3123 * us to stop a hw_scan when it's already stopped. This can 3124 * happen, for instance, if we stopped the scan ourselves, 3125 * called ieee80211_scan_completed() and the userspace called 3126 * cancel scan scan before ieee80211_scan_work() could run. 3127 * To handle that, simply return if the scan is not running. 3128 */ 3129 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3130 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3131 3132 mutex_unlock(&mvm->mutex); 3133 } 3134 3135 void 3136 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3137 struct ieee80211_sta *sta, u16 tids, 3138 int num_frames, 3139 enum ieee80211_frame_release_type reason, 3140 bool more_data) 3141 { 3142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3143 3144 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3145 3146 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3147 tids, more_data, false); 3148 } 3149 3150 void 3151 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3152 struct ieee80211_sta *sta, u16 tids, 3153 int num_frames, 3154 enum ieee80211_frame_release_type reason, 3155 bool more_data) 3156 { 3157 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3158 3159 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3160 3161 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3162 tids, more_data, true); 3163 } 3164 3165 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3166 enum sta_notify_cmd cmd, 3167 struct ieee80211_sta *sta) 3168 { 3169 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3170 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3171 unsigned long txqs = 0, tids = 0; 3172 int tid; 3173 3174 /* 3175 * If we have TVQM then we get too high queue numbers - luckily 3176 * we really shouldn't get here with that because such hardware 3177 * should have firmware supporting buffer station offload. 3178 */ 3179 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3180 return; 3181 3182 spin_lock_bh(&mvmsta->lock); 3183 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3184 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3185 3186 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3187 continue; 3188 3189 __set_bit(tid_data->txq_id, &txqs); 3190 3191 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3192 continue; 3193 3194 __set_bit(tid, &tids); 3195 } 3196 3197 switch (cmd) { 3198 case STA_NOTIFY_SLEEP: 3199 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3200 ieee80211_sta_set_buffered(sta, tid, true); 3201 3202 if (txqs) 3203 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3204 /* 3205 * The fw updates the STA to be asleep. Tx packets on the Tx 3206 * queues to this station will not be transmitted. The fw will 3207 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3208 */ 3209 break; 3210 case STA_NOTIFY_AWAKE: 3211 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3212 break; 3213 3214 if (txqs) 3215 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3216 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3217 break; 3218 default: 3219 break; 3220 } 3221 spin_unlock_bh(&mvmsta->lock); 3222 } 3223 3224 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3225 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3226 { 3227 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3228 } 3229 3230 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3231 { 3232 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3233 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3234 struct ieee80211_sta *sta; 3235 struct iwl_mvm_sta *mvmsta; 3236 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3237 3238 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3239 return; 3240 3241 rcu_read_lock(); 3242 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3243 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3244 rcu_read_unlock(); 3245 return; 3246 } 3247 3248 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3249 3250 if (!mvmsta->vif || 3251 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3252 rcu_read_unlock(); 3253 return; 3254 } 3255 3256 if (mvmsta->sleeping != sleeping) { 3257 mvmsta->sleeping = sleeping; 3258 __iwl_mvm_mac_sta_notify(mvm->hw, 3259 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3260 sta); 3261 ieee80211_sta_ps_transition(sta, sleeping); 3262 } 3263 3264 if (sleeping) { 3265 switch (notif->type) { 3266 case IWL_MVM_PM_EVENT_AWAKE: 3267 case IWL_MVM_PM_EVENT_ASLEEP: 3268 break; 3269 case IWL_MVM_PM_EVENT_UAPSD: 3270 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3271 break; 3272 case IWL_MVM_PM_EVENT_PS_POLL: 3273 ieee80211_sta_pspoll(sta); 3274 break; 3275 default: 3276 break; 3277 } 3278 } 3279 3280 rcu_read_unlock(); 3281 } 3282 3283 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3284 struct ieee80211_vif *vif, 3285 struct ieee80211_sta *sta) 3286 { 3287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3288 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3289 unsigned int link_id; 3290 3291 /* 3292 * This is called before mac80211 does RCU synchronisation, 3293 * so here we already invalidate our internal RCU-protected 3294 * station pointer. The rest of the code will thus no longer 3295 * be able to find the station this way, and we don't rely 3296 * on further RCU synchronisation after the sta_state() 3297 * callback deleted the station. 3298 * Since there's mvm->mutex here, no need to have RCU lock for 3299 * mvm_sta->link access. 3300 */ 3301 mutex_lock(&mvm->mutex); 3302 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3303 struct iwl_mvm_link_sta *link_sta; 3304 u32 sta_id; 3305 3306 if (!mvm_sta->link[link_id]) 3307 continue; 3308 3309 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3310 lockdep_is_held(&mvm->mutex)); 3311 sta_id = link_sta->sta_id; 3312 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3313 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3314 ERR_PTR(-ENOENT)); 3315 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3316 } 3317 } 3318 mutex_unlock(&mvm->mutex); 3319 } 3320 3321 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3322 const u8 *bssid) 3323 { 3324 int i; 3325 3326 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3327 struct iwl_mvm_tcm_mac *mdata; 3328 3329 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3330 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3331 mdata->opened_rx_ba_sessions = false; 3332 } 3333 3334 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3335 return; 3336 3337 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3338 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3339 return; 3340 } 3341 3342 if (!vif->p2p && 3343 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3344 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3345 return; 3346 } 3347 3348 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3349 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3350 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3351 return; 3352 } 3353 } 3354 3355 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3356 } 3357 3358 static void 3359 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3360 struct ieee80211_vif *vif, u8 *peer_addr, 3361 enum nl80211_tdls_operation action) 3362 { 3363 struct iwl_fw_dbg_trigger_tlv *trig; 3364 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3365 3366 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3367 FW_DBG_TRIGGER_TDLS); 3368 if (!trig) 3369 return; 3370 3371 tdls_trig = (void *)trig->data; 3372 3373 if (!(tdls_trig->action_bitmap & BIT(action))) 3374 return; 3375 3376 if (tdls_trig->peer_mode && 3377 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3378 return; 3379 3380 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3381 "TDLS event occurred, peer %pM, action %d", 3382 peer_addr, action); 3383 } 3384 3385 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3386 bool tolerated; 3387 }; 3388 3389 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3390 struct cfg80211_bss *bss, 3391 void *_data) 3392 { 3393 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3394 const struct cfg80211_bss_ies *ies; 3395 const struct element *elem; 3396 3397 rcu_read_lock(); 3398 ies = rcu_dereference(bss->ies); 3399 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3400 ies->len); 3401 3402 if (!elem || elem->datalen < 10 || 3403 !(elem->data[10] & 3404 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3405 data->tolerated = false; 3406 } 3407 rcu_read_unlock(); 3408 } 3409 3410 static void 3411 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3412 struct ieee80211_vif *vif, 3413 unsigned int link_id, 3414 struct ieee80211_bss_conf *link_conf) 3415 { 3416 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3417 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3418 .tolerated = true, 3419 }; 3420 3421 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3422 !mvmvif->link[link_id])) 3423 return; 3424 3425 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3426 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3427 return; 3428 } 3429 3430 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3431 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3432 &iter_data); 3433 3434 /* 3435 * If there is at least one AP on radar channel that cannot 3436 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3437 */ 3438 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3439 } 3440 3441 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3442 struct ieee80211_vif *vif) 3443 { 3444 struct ieee80211_supported_band *sband; 3445 const struct ieee80211_sta_he_cap *he_cap; 3446 3447 if (vif->type != NL80211_IFTYPE_STATION) 3448 return; 3449 3450 if (!mvm->cca_40mhz_workaround) 3451 return; 3452 3453 /* decrement and check that we reached zero */ 3454 mvm->cca_40mhz_workaround--; 3455 if (mvm->cca_40mhz_workaround) 3456 return; 3457 3458 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3459 3460 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3461 3462 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3463 3464 if (he_cap) { 3465 /* we know that ours is writable */ 3466 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3467 3468 he->he_cap_elem.phy_cap_info[0] |= 3469 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3470 } 3471 } 3472 3473 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3474 struct ieee80211_vif *vif, 3475 struct iwl_mvm_sta *mvm_sta) 3476 { 3477 #if IS_ENABLED(CONFIG_IWLMEI) 3478 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3479 struct iwl_mei_conn_info conn_info = { 3480 .ssid_len = vif->cfg.ssid_len, 3481 }; 3482 3483 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3484 return; 3485 3486 if (!mvm->mei_registered) 3487 return; 3488 3489 /* FIXME: MEI needs to be updated for MLO */ 3490 if (!vif->bss_conf.chandef.chan) 3491 return; 3492 3493 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3494 3495 switch (mvm_sta->pairwise_cipher) { 3496 case WLAN_CIPHER_SUITE_TKIP: 3497 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3498 break; 3499 case WLAN_CIPHER_SUITE_CCMP: 3500 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3501 break; 3502 case WLAN_CIPHER_SUITE_GCMP: 3503 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3504 break; 3505 case WLAN_CIPHER_SUITE_GCMP_256: 3506 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3507 break; 3508 case 0: 3509 /* open profile */ 3510 break; 3511 default: 3512 /* cipher not supported, don't send anything to iwlmei */ 3513 return; 3514 } 3515 3516 switch (mvmvif->rekey_data.akm) { 3517 case WLAN_AKM_SUITE_SAE & 0xff: 3518 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3519 break; 3520 case WLAN_AKM_SUITE_PSK & 0xff: 3521 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3522 break; 3523 case WLAN_AKM_SUITE_8021X & 0xff: 3524 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3525 break; 3526 case 0: 3527 /* open profile */ 3528 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3529 break; 3530 default: 3531 /* auth method / AKM not supported */ 3532 /* TODO: All the FT vesions of these? */ 3533 return; 3534 } 3535 3536 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3537 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3538 3539 /* TODO: add support for collocated AP data */ 3540 iwl_mei_host_associated(&conn_info, NULL); 3541 #endif 3542 } 3543 3544 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3545 struct ieee80211_vif *vif, 3546 bool force_assoc_off) 3547 { 3548 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3549 } 3550 3551 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3552 struct ieee80211_vif *vif, 3553 struct ieee80211_sta *sta, 3554 enum ieee80211_sta_state old_state, 3555 enum ieee80211_sta_state new_state) 3556 { 3557 static const struct iwl_mvm_sta_state_ops callbacks = { 3558 .add_sta = iwl_mvm_add_sta, 3559 .update_sta = iwl_mvm_update_sta, 3560 .rm_sta = iwl_mvm_rm_sta, 3561 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3562 }; 3563 3564 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3565 &callbacks); 3566 } 3567 3568 /* FIXME: temporary making two assumptions in all sta handling functions: 3569 * (1) when setting sta state, the link exists and protected 3570 * (2) if a link is valid in sta then it's valid in vif (can 3571 * use same index in the link array) 3572 */ 3573 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3574 struct ieee80211_vif *vif, 3575 struct ieee80211_sta *sta) 3576 { 3577 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3578 unsigned int link_id; 3579 3580 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3581 struct ieee80211_bss_conf *conf = 3582 link_conf_dereference_check(vif, link_id); 3583 struct ieee80211_link_sta *link_sta = 3584 link_sta_dereference_check(sta, link_id); 3585 3586 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3587 continue; 3588 3589 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3590 mvmvif->link[link_id]->phy_ctxt->channel->band); 3591 } 3592 } 3593 3594 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3595 3596 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3597 struct ieee80211_vif *vif, 3598 struct ieee80211_sta *sta) 3599 { 3600 struct ieee80211_link_sta *link_sta; 3601 unsigned int link_id; 3602 3603 /* Beacon interval check - firmware will crash if the beacon 3604 * interval is less than 16. We can't avoid connecting at all, 3605 * so refuse the station state change, this will cause mac80211 3606 * to abandon attempts to connect to this AP, and eventually 3607 * wpa_s will blocklist the AP... 3608 */ 3609 3610 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3611 struct ieee80211_bss_conf *link_conf = 3612 link_conf_dereference_protected(vif, link_id); 3613 3614 if (!link_conf) 3615 continue; 3616 3617 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3618 IWL_ERR(mvm, 3619 "Beacon interval %d for AP %pM is too small\n", 3620 link_conf->beacon_int, link_sta->addr); 3621 return false; 3622 } 3623 3624 link_conf->he_support = link_sta->he_cap.has_he; 3625 } 3626 3627 return true; 3628 } 3629 3630 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3631 struct ieee80211_vif *vif, 3632 struct ieee80211_sta *sta, 3633 bool is_sta) 3634 { 3635 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3636 struct ieee80211_link_sta *link_sta; 3637 unsigned int link_id; 3638 3639 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3640 struct ieee80211_bss_conf *link_conf = 3641 link_conf_dereference_protected(vif, link_id); 3642 3643 if (!link_conf || !mvmvif->link[link_id]) 3644 continue; 3645 3646 link_conf->he_support = link_sta->he_cap.has_he; 3647 3648 if (is_sta) { 3649 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3650 if (link_sta->he_cap.has_he) 3651 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3652 link_id, 3653 link_conf); 3654 } 3655 } 3656 } 3657 3658 static int 3659 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3660 struct ieee80211_vif *vif, 3661 struct ieee80211_sta *sta, 3662 const struct iwl_mvm_sta_state_ops *callbacks) 3663 { 3664 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3665 struct ieee80211_link_sta *link_sta; 3666 unsigned int i; 3667 int ret; 3668 3669 lockdep_assert_held(&mvm->mutex); 3670 3671 if (vif->type == NL80211_IFTYPE_STATION && 3672 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3673 return -EINVAL; 3674 3675 if (sta->tdls && 3676 (vif->p2p || 3677 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3678 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3679 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3680 return -EBUSY; 3681 } 3682 3683 ret = callbacks->add_sta(mvm, vif, sta); 3684 if (sta->tdls && ret == 0) { 3685 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3686 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3687 NL80211_TDLS_SETUP); 3688 } 3689 3690 for_each_sta_active_link(vif, sta, link_sta, i) 3691 link_sta->agg.max_rc_amsdu_len = 1; 3692 3693 ieee80211_sta_recalc_aggregates(sta); 3694 3695 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3696 mvmvif->ap_sta = sta; 3697 3698 return 0; 3699 } 3700 3701 static int 3702 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3703 struct iwl_mvm *mvm, 3704 struct ieee80211_vif *vif, 3705 struct ieee80211_sta *sta, 3706 const struct iwl_mvm_sta_state_ops *callbacks) 3707 { 3708 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3709 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3710 struct ieee80211_link_sta *link_sta; 3711 unsigned int link_id; 3712 3713 lockdep_assert_held(&mvm->mutex); 3714 3715 if (vif->type == NL80211_IFTYPE_AP) { 3716 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3717 mvmvif->ap_assoc_sta_count++; 3718 callbacks->mac_ctxt_changed(mvm, vif, false); 3719 3720 /* since the below is not for MLD API, it's ok to use 3721 * the default bss_conf 3722 */ 3723 if (!mvm->mld_api_is_used && 3724 ((vif->bss_conf.he_support && 3725 !iwlwifi_mod_params.disable_11ax) || 3726 (vif->bss_conf.eht_support && 3727 !iwlwifi_mod_params.disable_11be))) 3728 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3729 } else if (vif->type == NL80211_IFTYPE_STATION) { 3730 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3731 3732 callbacks->mac_ctxt_changed(mvm, vif, false); 3733 3734 if (!mvm->mld_api_is_used) 3735 goto out; 3736 3737 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3738 struct ieee80211_bss_conf *link_conf = 3739 link_conf_dereference_protected(vif, link_id); 3740 3741 if (WARN_ON(!link_conf)) 3742 return -EINVAL; 3743 if (!mvmvif->link[link_id]) 3744 continue; 3745 3746 iwl_mvm_link_changed(mvm, vif, link_conf, 3747 LINK_CONTEXT_MODIFY_ALL & 3748 ~LINK_CONTEXT_MODIFY_ACTIVE, 3749 true); 3750 } 3751 } 3752 3753 out: 3754 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3755 3756 return callbacks->update_sta(mvm, vif, sta); 3757 } 3758 3759 static int 3760 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3761 struct ieee80211_vif *vif, 3762 struct ieee80211_sta *sta, 3763 const struct iwl_mvm_sta_state_ops *callbacks) 3764 { 3765 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3766 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3767 3768 lockdep_assert_held(&mvm->mutex); 3769 3770 /* we don't support TDLS during DCM */ 3771 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3772 iwl_mvm_teardown_tdls_peers(mvm); 3773 3774 if (sta->tdls) { 3775 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3776 NL80211_TDLS_ENABLE_LINK); 3777 } else { 3778 /* enable beacon filtering */ 3779 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3780 3781 mvmvif->authorized = 1; 3782 3783 callbacks->mac_ctxt_changed(mvm, vif, false); 3784 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3785 3786 /* when client is authorized (AP station marked as such), 3787 * try to enable more links 3788 */ 3789 if (vif->type == NL80211_IFTYPE_STATION && 3790 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3791 iwl_mvm_mld_select_links(mvm, vif, false); 3792 } 3793 3794 mvm_sta->authorized = true; 3795 3796 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3797 3798 /* MFP is set by default before the station is authorized. 3799 * Clear it here in case it's not used. 3800 */ 3801 if (!sta->mfp) 3802 return callbacks->update_sta(mvm, vif, sta); 3803 3804 return 0; 3805 } 3806 3807 static int 3808 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3809 struct ieee80211_vif *vif, 3810 struct ieee80211_sta *sta, 3811 const struct iwl_mvm_sta_state_ops *callbacks) 3812 { 3813 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3814 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3815 3816 lockdep_assert_held(&mvm->mutex); 3817 3818 mvmsta->authorized = false; 3819 3820 /* once we move into assoc state, need to update rate scale to 3821 * disable using wide bandwidth 3822 */ 3823 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3824 3825 if (!sta->tdls) { 3826 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3827 * yet to avoid sending high prio again for a little 3828 * time. 3829 */ 3830 mvmvif->authorized = 0; 3831 3832 /* disable beacon filtering */ 3833 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3834 } 3835 3836 return 0; 3837 } 3838 3839 /* Common part for MLD and non-MLD modes */ 3840 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3841 struct ieee80211_vif *vif, 3842 struct ieee80211_sta *sta, 3843 enum ieee80211_sta_state old_state, 3844 enum ieee80211_sta_state new_state, 3845 const struct iwl_mvm_sta_state_ops *callbacks) 3846 { 3847 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3848 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3849 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3850 struct ieee80211_link_sta *link_sta; 3851 unsigned int link_id; 3852 int ret; 3853 3854 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3855 sta->addr, old_state, new_state); 3856 3857 /* 3858 * If we are in a STA removal flow and in DQA mode: 3859 * 3860 * This is after the sync_rcu part, so the queues have already been 3861 * flushed. No more TXs on their way in mac80211's path, and no more in 3862 * the queues. 3863 * Also, we won't be getting any new TX frames for this station. 3864 * What we might have are deferred TX frames that need to be taken care 3865 * of. 3866 * 3867 * Drop any still-queued deferred-frame before removing the STA, and 3868 * make sure the worker is no longer handling frames for this STA. 3869 */ 3870 if (old_state == IEEE80211_STA_NONE && 3871 new_state == IEEE80211_STA_NOTEXIST) { 3872 flush_work(&mvm->add_stream_wk); 3873 3874 /* 3875 * No need to make sure deferred TX indication is off since the 3876 * worker will already remove it if it was on 3877 */ 3878 3879 /* 3880 * Additionally, reset the 40 MHz capability if we disconnected 3881 * from the AP now. 3882 */ 3883 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3884 3885 /* Also free dup data just in case any assertions below fail */ 3886 kfree(mvm_sta->dup_data); 3887 } 3888 3889 mutex_lock(&mvm->mutex); 3890 3891 /* this would be a mac80211 bug ... but don't crash, unless we had a 3892 * firmware crash while we were activating a link, in which case it is 3893 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3894 * recovery flow since we spit tons of error messages anyway. 3895 */ 3896 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3897 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 3898 !mvmvif->link[link_id]->phy_ctxt)) { 3899 mutex_unlock(&mvm->mutex); 3900 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3901 &mvm->status) ? 0 : -EINVAL; 3902 } 3903 } 3904 3905 /* track whether or not the station is associated */ 3906 mvm_sta->sta_state = new_state; 3907 3908 if (old_state == IEEE80211_STA_NOTEXIST && 3909 new_state == IEEE80211_STA_NONE) { 3910 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3911 callbacks); 3912 if (ret < 0) 3913 goto out_unlock; 3914 } else if (old_state == IEEE80211_STA_NONE && 3915 new_state == IEEE80211_STA_AUTH) { 3916 /* 3917 * EBS may be disabled due to previous failures reported by FW. 3918 * Reset EBS status here assuming environment has been changed. 3919 */ 3920 mvm->last_ebs_successful = true; 3921 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3922 ret = 0; 3923 } else if (old_state == IEEE80211_STA_AUTH && 3924 new_state == IEEE80211_STA_ASSOC) { 3925 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3926 callbacks); 3927 } else if (old_state == IEEE80211_STA_ASSOC && 3928 new_state == IEEE80211_STA_AUTHORIZED) { 3929 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3930 callbacks); 3931 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3932 new_state == IEEE80211_STA_ASSOC) { 3933 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3934 callbacks); 3935 } else if (old_state == IEEE80211_STA_ASSOC && 3936 new_state == IEEE80211_STA_AUTH) { 3937 if (vif->type == NL80211_IFTYPE_AP) { 3938 mvmvif->ap_assoc_sta_count--; 3939 callbacks->mac_ctxt_changed(mvm, vif, false); 3940 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3941 iwl_mvm_stop_session_protection(mvm, vif); 3942 ret = 0; 3943 } else if (old_state == IEEE80211_STA_AUTH && 3944 new_state == IEEE80211_STA_NONE) { 3945 ret = 0; 3946 } else if (old_state == IEEE80211_STA_NONE && 3947 new_state == IEEE80211_STA_NOTEXIST) { 3948 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3949 iwl_mvm_stop_session_protection(mvm, vif); 3950 mvmvif->ap_sta = NULL; 3951 } 3952 ret = callbacks->rm_sta(mvm, vif, sta); 3953 if (sta->tdls) { 3954 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3955 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3956 NL80211_TDLS_DISABLE_LINK); 3957 } 3958 3959 if (unlikely(ret && 3960 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3961 &mvm->status))) 3962 ret = 0; 3963 } else { 3964 ret = -EIO; 3965 } 3966 out_unlock: 3967 mutex_unlock(&mvm->mutex); 3968 3969 if (sta->tdls && ret == 0) { 3970 if (old_state == IEEE80211_STA_NOTEXIST && 3971 new_state == IEEE80211_STA_NONE) 3972 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3973 else if (old_state == IEEE80211_STA_NONE && 3974 new_state == IEEE80211_STA_NOTEXIST) 3975 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3976 } 3977 3978 return ret; 3979 } 3980 3981 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3982 { 3983 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3984 3985 mvm->rts_threshold = value; 3986 3987 return 0; 3988 } 3989 3990 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3991 struct ieee80211_sta *sta, u32 changed) 3992 { 3993 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3994 3995 if (changed & (IEEE80211_RC_BW_CHANGED | 3996 IEEE80211_RC_SUPP_RATES_CHANGED | 3997 IEEE80211_RC_NSS_CHANGED)) 3998 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3999 4000 if (vif->type == NL80211_IFTYPE_STATION && 4001 changed & IEEE80211_RC_NSS_CHANGED) 4002 iwl_mvm_sf_update(mvm, vif, false); 4003 } 4004 4005 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4006 struct ieee80211_vif *vif, 4007 unsigned int link_id, u16 ac, 4008 const struct ieee80211_tx_queue_params *params) 4009 { 4010 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4011 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4012 4013 mvmvif->deflink.queue_params[ac] = *params; 4014 4015 /* 4016 * No need to update right away, we'll get BSS_CHANGED_QOS 4017 * The exception is P2P_DEVICE interface which needs immediate update. 4018 */ 4019 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4020 int ret; 4021 4022 mutex_lock(&mvm->mutex); 4023 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4024 mutex_unlock(&mvm->mutex); 4025 return ret; 4026 } 4027 return 0; 4028 } 4029 4030 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4031 struct ieee80211_vif *vif, 4032 struct ieee80211_prep_tx_info *info) 4033 { 4034 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4035 4036 mutex_lock(&mvm->mutex); 4037 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4038 mutex_unlock(&mvm->mutex); 4039 } 4040 4041 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4042 struct ieee80211_vif *vif, 4043 struct ieee80211_prep_tx_info *info) 4044 { 4045 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4046 4047 /* for successful cases (auth/assoc), don't cancel session protection */ 4048 if (info->success) 4049 return; 4050 4051 mutex_lock(&mvm->mutex); 4052 iwl_mvm_stop_session_protection(mvm, vif); 4053 mutex_unlock(&mvm->mutex); 4054 } 4055 4056 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4057 struct ieee80211_vif *vif, 4058 struct cfg80211_sched_scan_request *req, 4059 struct ieee80211_scan_ies *ies) 4060 { 4061 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4062 4063 int ret; 4064 4065 mutex_lock(&mvm->mutex); 4066 4067 if (!vif->cfg.idle) { 4068 ret = -EBUSY; 4069 goto out; 4070 } 4071 4072 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4073 4074 out: 4075 mutex_unlock(&mvm->mutex); 4076 return ret; 4077 } 4078 4079 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4080 struct ieee80211_vif *vif) 4081 { 4082 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4083 int ret; 4084 4085 mutex_lock(&mvm->mutex); 4086 4087 /* Due to a race condition, it's possible that mac80211 asks 4088 * us to stop a sched_scan when it's already stopped. This 4089 * can happen, for instance, if we stopped the scan ourselves, 4090 * called ieee80211_sched_scan_stopped() and the userspace called 4091 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4092 * could run. To handle this, simply return if the scan is 4093 * not running. 4094 */ 4095 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4096 mutex_unlock(&mvm->mutex); 4097 return 0; 4098 } 4099 4100 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4101 mutex_unlock(&mvm->mutex); 4102 iwl_mvm_wait_for_async_handlers(mvm); 4103 4104 return ret; 4105 } 4106 4107 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4108 enum set_key_cmd cmd, 4109 struct ieee80211_vif *vif, 4110 struct ieee80211_sta *sta, 4111 struct ieee80211_key_conf *key) 4112 { 4113 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4115 struct iwl_mvm_sta *mvmsta = NULL; 4116 struct iwl_mvm_key_pn *ptk_pn = NULL; 4117 int keyidx = key->keyidx; 4118 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4119 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4120 int ret, i; 4121 u8 key_offset; 4122 4123 if (sta) 4124 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4125 4126 switch (key->cipher) { 4127 case WLAN_CIPHER_SUITE_TKIP: 4128 if (!mvm->trans->trans_cfg->gen2) { 4129 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4130 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4131 } else if (vif->type == NL80211_IFTYPE_STATION) { 4132 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4133 } else { 4134 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4135 return -EOPNOTSUPP; 4136 } 4137 break; 4138 case WLAN_CIPHER_SUITE_CCMP: 4139 case WLAN_CIPHER_SUITE_GCMP: 4140 case WLAN_CIPHER_SUITE_GCMP_256: 4141 if (!iwl_mvm_has_new_tx_api(mvm)) 4142 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4143 break; 4144 case WLAN_CIPHER_SUITE_AES_CMAC: 4145 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4146 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4147 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4148 break; 4149 case WLAN_CIPHER_SUITE_WEP40: 4150 case WLAN_CIPHER_SUITE_WEP104: 4151 if (vif->type == NL80211_IFTYPE_STATION) 4152 break; 4153 if (iwl_mvm_has_new_tx_api(mvm)) 4154 return -EOPNOTSUPP; 4155 /* support HW crypto on TX */ 4156 return 0; 4157 default: 4158 return -EOPNOTSUPP; 4159 } 4160 4161 switch (cmd) { 4162 case SET_KEY: 4163 if (vif->type == NL80211_IFTYPE_STATION && 4164 (keyidx == 6 || keyidx == 7)) 4165 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4166 key); 4167 4168 if ((vif->type == NL80211_IFTYPE_ADHOC || 4169 vif->type == NL80211_IFTYPE_AP) && !sta) { 4170 /* 4171 * GTK on AP interface is a TX-only key, return 0; 4172 * on IBSS they're per-station and because we're lazy 4173 * we don't support them for RX, so do the same. 4174 * CMAC/GMAC in AP/IBSS modes must be done in software 4175 * on older NICs. 4176 * 4177 * Except, of course, beacon protection - it must be 4178 * offloaded since we just set a beacon template, and 4179 * then we must also offload the IGTK (not just BIGTK) 4180 * for firmware reasons. 4181 * 4182 * So just check for beacon protection - if we don't 4183 * have it we cannot get here with keyidx >= 6, and 4184 * if we do have it we need to send the key to FW in 4185 * all cases (CMAC/GMAC). 4186 */ 4187 if (!wiphy_ext_feature_isset(hw->wiphy, 4188 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4189 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4190 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4191 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4192 ret = -EOPNOTSUPP; 4193 break; 4194 } 4195 4196 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4197 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4198 !iwl_mvm_has_new_tx_api(mvm)) { 4199 key->hw_key_idx = STA_KEY_IDX_INVALID; 4200 ret = 0; 4201 break; 4202 } 4203 4204 if (!mvmvif->ap_ibss_active) { 4205 for (i = 0; 4206 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4207 i++) { 4208 if (!mvmvif->ap_early_keys[i]) { 4209 mvmvif->ap_early_keys[i] = key; 4210 break; 4211 } 4212 } 4213 4214 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4215 ret = -ENOSPC; 4216 else 4217 ret = 0; 4218 4219 break; 4220 } 4221 } 4222 4223 /* During FW restart, in order to restore the state as it was, 4224 * don't try to reprogram keys we previously failed for. 4225 */ 4226 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4227 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4228 IWL_DEBUG_MAC80211(mvm, 4229 "skip invalid idx key programming during restart\n"); 4230 ret = 0; 4231 break; 4232 } 4233 4234 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4235 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4236 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4237 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4238 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4239 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4240 struct ieee80211_key_seq seq; 4241 int tid, q; 4242 4243 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4244 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4245 mvm->trans->num_rx_queues), 4246 GFP_KERNEL); 4247 if (!ptk_pn) { 4248 ret = -ENOMEM; 4249 break; 4250 } 4251 4252 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4253 ieee80211_get_key_rx_seq(key, tid, &seq); 4254 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4255 memcpy(ptk_pn->q[q].pn[tid], 4256 seq.ccmp.pn, 4257 IEEE80211_CCMP_PN_LEN); 4258 } 4259 4260 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4261 } 4262 4263 /* in HW restart reuse the index, otherwise request a new one */ 4264 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4265 key_offset = key->hw_key_idx; 4266 else 4267 key_offset = STA_KEY_IDX_INVALID; 4268 4269 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4270 mvmsta->pairwise_cipher = key->cipher; 4271 4272 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4273 sta ? sta->addr : NULL, key->keyidx); 4274 4275 if (sec_key_ver) 4276 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4277 else 4278 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4279 4280 if (ret) { 4281 IWL_WARN(mvm, "set key failed\n"); 4282 key->hw_key_idx = STA_KEY_IDX_INVALID; 4283 if (ptk_pn) { 4284 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4285 kfree(ptk_pn); 4286 } 4287 /* 4288 * can't add key for RX, but we don't need it 4289 * in the device for TX so still return 0, 4290 * unless we have new TX API where we cannot 4291 * put key material into the TX_CMD 4292 */ 4293 if (iwl_mvm_has_new_tx_api(mvm)) 4294 ret = -EOPNOTSUPP; 4295 else 4296 ret = 0; 4297 } 4298 4299 break; 4300 case DISABLE_KEY: 4301 if (vif->type == NL80211_IFTYPE_STATION && 4302 (keyidx == 6 || keyidx == 7)) 4303 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4304 NULL); 4305 4306 ret = -ENOENT; 4307 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4308 if (mvmvif->ap_early_keys[i] == key) { 4309 mvmvif->ap_early_keys[i] = NULL; 4310 ret = 0; 4311 } 4312 } 4313 4314 /* found in pending list - don't do anything else */ 4315 if (ret == 0) 4316 break; 4317 4318 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4319 ret = 0; 4320 break; 4321 } 4322 4323 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4324 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4325 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4326 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4327 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4328 ptk_pn = rcu_dereference_protected( 4329 mvmsta->ptk_pn[keyidx], 4330 lockdep_is_held(&mvm->mutex)); 4331 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4332 if (ptk_pn) 4333 kfree_rcu(ptk_pn, rcu_head); 4334 } 4335 4336 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4337 if (sec_key_ver) 4338 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4339 else 4340 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4341 break; 4342 default: 4343 ret = -EINVAL; 4344 } 4345 4346 return ret; 4347 } 4348 4349 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4350 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4351 struct ieee80211_key_conf *key) 4352 { 4353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4354 int ret; 4355 4356 mutex_lock(&mvm->mutex); 4357 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4358 mutex_unlock(&mvm->mutex); 4359 4360 return ret; 4361 } 4362 4363 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4364 struct ieee80211_vif *vif, 4365 struct ieee80211_key_conf *keyconf, 4366 struct ieee80211_sta *sta, 4367 u32 iv32, u16 *phase1key) 4368 { 4369 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4370 4371 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4372 return; 4373 4374 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4375 } 4376 4377 4378 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4379 struct iwl_rx_packet *pkt, void *data) 4380 { 4381 struct iwl_mvm *mvm = 4382 container_of(notif_wait, struct iwl_mvm, notif_wait); 4383 struct iwl_hs20_roc_res *resp; 4384 int resp_len = iwl_rx_packet_payload_len(pkt); 4385 struct iwl_mvm_time_event_data *te_data = data; 4386 4387 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4388 return true; 4389 4390 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4391 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4392 return true; 4393 } 4394 4395 resp = (void *)pkt->data; 4396 4397 IWL_DEBUG_TE(mvm, 4398 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4399 resp->status, resp->event_unique_id); 4400 4401 te_data->uid = le32_to_cpu(resp->event_unique_id); 4402 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4403 te_data->uid); 4404 4405 spin_lock_bh(&mvm->time_event_lock); 4406 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4407 spin_unlock_bh(&mvm->time_event_lock); 4408 4409 return true; 4410 } 4411 4412 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4413 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4414 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4415 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4416 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4417 4418 static void iwl_mvm_roc_duration_and_delay(struct ieee80211_vif *vif, 4419 u32 duration_ms, 4420 u32 *duration_tu, 4421 u32 *delay) 4422 { 4423 u32 dtim_interval = vif->bss_conf.dtim_period * 4424 vif->bss_conf.beacon_int; 4425 4426 *delay = AUX_ROC_MIN_DELAY; 4427 *duration_tu = MSEC_TO_TU(duration_ms); 4428 4429 /* 4430 * If we are associated we want the delay time to be at least one 4431 * dtim interval so that the FW can wait until after the DTIM and 4432 * then start the time event, this will potentially allow us to 4433 * remain off-channel for the max duration. 4434 * Since we want to use almost a whole dtim interval we would also 4435 * like the delay to be for 2-3 dtim intervals, in case there are 4436 * other time events with higher priority. 4437 */ 4438 if (vif->cfg.assoc) { 4439 *delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4440 /* We cannot remain off-channel longer than the DTIM interval */ 4441 if (dtim_interval <= *duration_tu) { 4442 *duration_tu = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4443 if (*duration_tu <= AUX_ROC_MIN_DURATION) 4444 *duration_tu = dtim_interval - 4445 AUX_ROC_MIN_SAFETY_BUFFER; 4446 } 4447 } 4448 } 4449 4450 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4451 struct ieee80211_channel *channel, 4452 struct ieee80211_vif *vif, 4453 int duration) 4454 { 4455 int res; 4456 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4457 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4458 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4459 struct iwl_notification_wait wait_time_event; 4460 u32 req_dur, delay; 4461 struct iwl_hs20_roc_req aux_roc_req = { 4462 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4463 .id_and_color = 4464 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4465 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4466 }; 4467 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4468 &aux_roc_req.channel_info); 4469 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4470 4471 /* Set the channel info data */ 4472 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4473 iwl_mvm_phy_band_from_nl80211(channel->band), 4474 IWL_PHY_CHANNEL_MODE20, 4475 0); 4476 4477 /* Set the time and duration */ 4478 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4479 4480 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4481 tail->duration = cpu_to_le32(req_dur); 4482 tail->apply_time_max_delay = cpu_to_le32(delay); 4483 4484 IWL_DEBUG_TE(mvm, 4485 "ROC: Requesting to remain on channel %u for %ums\n", 4486 channel->hw_value, req_dur); 4487 IWL_DEBUG_TE(mvm, 4488 "\t(requested = %ums, max_delay = %ums)\n", 4489 duration, delay); 4490 4491 /* Set the node address */ 4492 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4493 4494 lockdep_assert_held(&mvm->mutex); 4495 4496 spin_lock_bh(&mvm->time_event_lock); 4497 4498 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4499 spin_unlock_bh(&mvm->time_event_lock); 4500 return -EIO; 4501 } 4502 4503 te_data->vif = vif; 4504 te_data->duration = duration; 4505 te_data->id = HOT_SPOT_CMD; 4506 4507 spin_unlock_bh(&mvm->time_event_lock); 4508 4509 /* 4510 * Use a notification wait, which really just processes the 4511 * command response and doesn't wait for anything, in order 4512 * to be able to process the response and get the UID inside 4513 * the RX path. Using CMD_WANT_SKB doesn't work because it 4514 * stores the buffer and then wakes up this thread, by which 4515 * time another notification (that the time event started) 4516 * might already be processed unsuccessfully. 4517 */ 4518 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4519 time_event_response, 4520 ARRAY_SIZE(time_event_response), 4521 iwl_mvm_rx_aux_roc, te_data); 4522 4523 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4524 &aux_roc_req); 4525 4526 if (res) { 4527 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4528 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4529 goto out_clear_te; 4530 } 4531 4532 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4533 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4534 /* should never fail */ 4535 WARN_ON_ONCE(res); 4536 4537 if (res) { 4538 out_clear_te: 4539 spin_lock_bh(&mvm->time_event_lock); 4540 iwl_mvm_te_clear_data(mvm, te_data); 4541 spin_unlock_bh(&mvm->time_event_lock); 4542 } 4543 4544 return res; 4545 } 4546 4547 static int iwl_mvm_roc_add_cmd(struct iwl_mvm *mvm, 4548 struct ieee80211_channel *channel, 4549 struct ieee80211_vif *vif, 4550 int duration, u32 activity) 4551 { 4552 int res; 4553 u32 duration_tu, delay; 4554 struct iwl_roc_req roc_req = { 4555 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4556 .activity = cpu_to_le32(activity), 4557 .sta_id = cpu_to_le32(mvm->aux_sta.sta_id), 4558 }; 4559 4560 lockdep_assert_held(&mvm->mutex); 4561 4562 /* Set the channel info data */ 4563 iwl_mvm_set_chan_info(mvm, &roc_req.channel_info, 4564 channel->hw_value, 4565 iwl_mvm_phy_band_from_nl80211(channel->band), 4566 IWL_PHY_CHANNEL_MODE20, 0); 4567 4568 iwl_mvm_roc_duration_and_delay(vif, duration, &duration_tu, 4569 &delay); 4570 roc_req.duration = cpu_to_le32(duration_tu); 4571 roc_req.max_delay = cpu_to_le32(delay); 4572 4573 IWL_DEBUG_TE(mvm, 4574 "\t(requested = %ums, max_delay = %ums)\n", 4575 duration, delay); 4576 IWL_DEBUG_TE(mvm, 4577 "Requesting to remain on channel %u for %utu\n", 4578 channel->hw_value, duration_tu); 4579 4580 /* Set the node address */ 4581 memcpy(roc_req.node_addr, vif->addr, ETH_ALEN); 4582 4583 res = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, ROC_CMD), 4584 0, sizeof(roc_req), &roc_req); 4585 4586 return res; 4587 } 4588 4589 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4590 { 4591 int ret = 0; 4592 4593 lockdep_assert_held(&mvm->mutex); 4594 4595 if (!fw_has_capa(&mvm->fw->ucode_capa, 4596 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4597 IWL_ERR(mvm, "hotspot not supported\n"); 4598 return -EINVAL; 4599 } 4600 4601 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4602 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4603 WARN(ret, "Failed to allocate aux station"); 4604 } 4605 4606 return ret; 4607 } 4608 4609 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4610 { 4611 int ret; 4612 4613 lockdep_assert_held(&mvm->mutex); 4614 4615 ret = iwl_mvm_binding_add_vif(mvm, vif); 4616 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4617 return ret; 4618 4619 /* The station and queue allocation must be done only after the binding 4620 * is done, as otherwise the FW might incorrectly configure its state. 4621 */ 4622 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4623 } 4624 4625 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4626 struct ieee80211_vif *vif, 4627 struct ieee80211_channel *channel, 4628 int duration, 4629 enum ieee80211_roc_type type) 4630 { 4631 static const struct iwl_mvm_roc_ops ops = { 4632 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4633 .link = iwl_mvm_roc_link, 4634 }; 4635 4636 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4637 } 4638 4639 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4640 struct ieee80211_channel *channel, 4641 struct ieee80211_vif *vif, 4642 int duration) 4643 { 4644 int ret; 4645 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4646 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4647 IWL_FW_CMD_VER_UNKNOWN); 4648 4649 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4650 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4651 } else if (fw_ver == 3) { 4652 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4653 ROC_ACTIVITY_HOTSPOT); 4654 } else { 4655 ret = -EOPNOTSUPP; 4656 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4657 } 4658 4659 return ret; 4660 } 4661 4662 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4663 struct ieee80211_vif *vif, 4664 struct ieee80211_channel *channel) 4665 { 4666 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4667 struct cfg80211_chan_def chandef; 4668 int i; 4669 4670 lockdep_assert_held(&mvm->mutex); 4671 4672 if (mvmvif->deflink.phy_ctxt && 4673 channel == mvmvif->deflink.phy_ctxt->channel) 4674 return 0; 4675 4676 /* Try using a PHY context that is already in use */ 4677 for (i = 0; i < NUM_PHY_CTX; i++) { 4678 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4679 4680 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4681 continue; 4682 4683 if (channel == phy_ctxt->channel) { 4684 if (mvmvif->deflink.phy_ctxt) 4685 iwl_mvm_phy_ctxt_unref(mvm, 4686 mvmvif->deflink.phy_ctxt); 4687 4688 mvmvif->deflink.phy_ctxt = phy_ctxt; 4689 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4690 return 0; 4691 } 4692 } 4693 4694 /* We already have a phy_ctxt, but it's not on the right channel */ 4695 if (mvmvif->deflink.phy_ctxt) 4696 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4697 4698 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4699 if (!mvmvif->deflink.phy_ctxt) 4700 return -ENOSPC; 4701 4702 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4703 4704 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4705 &chandef, 1, 1); 4706 } 4707 4708 /* Execute the common part for MLD and non-MLD modes */ 4709 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4710 struct ieee80211_channel *channel, int duration, 4711 enum ieee80211_roc_type type, 4712 const struct iwl_mvm_roc_ops *ops) 4713 { 4714 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4715 u32 lmac_id; 4716 int ret; 4717 4718 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4719 duration, type); 4720 4721 /* 4722 * Flush the done work, just in case it's still pending, so that 4723 * the work it does can complete and we can accept new frames. 4724 */ 4725 flush_work(&mvm->roc_done_wk); 4726 4727 mutex_lock(&mvm->mutex); 4728 4729 switch (vif->type) { 4730 case NL80211_IFTYPE_STATION: 4731 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4732 4733 /* Use aux roc framework (HS20) */ 4734 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4735 if (!ret) 4736 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4737 goto out_unlock; 4738 case NL80211_IFTYPE_P2P_DEVICE: 4739 /* handle below */ 4740 break; 4741 default: 4742 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4743 ret = -EINVAL; 4744 goto out_unlock; 4745 } 4746 4747 4748 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4749 if (ret) 4750 goto out_unlock; 4751 4752 ret = ops->link(mvm, vif); 4753 if (ret) 4754 goto out_unlock; 4755 4756 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4757 out_unlock: 4758 mutex_unlock(&mvm->mutex); 4759 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4760 return ret; 4761 } 4762 4763 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4764 struct ieee80211_vif *vif) 4765 { 4766 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4767 4768 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4769 4770 mutex_lock(&mvm->mutex); 4771 iwl_mvm_stop_roc(mvm, vif); 4772 mutex_unlock(&mvm->mutex); 4773 4774 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4775 return 0; 4776 } 4777 4778 struct iwl_mvm_ftm_responder_iter_data { 4779 bool responder; 4780 struct ieee80211_chanctx_conf *ctx; 4781 }; 4782 4783 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4784 struct ieee80211_vif *vif) 4785 { 4786 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4787 4788 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4789 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4790 data->responder = true; 4791 } 4792 4793 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4794 struct ieee80211_chanctx_conf *ctx) 4795 { 4796 struct iwl_mvm_ftm_responder_iter_data data = { 4797 .responder = false, 4798 .ctx = ctx, 4799 }; 4800 4801 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4802 IEEE80211_IFACE_ITER_NORMAL, 4803 iwl_mvm_ftm_responder_chanctx_iter, 4804 &data); 4805 return data.responder; 4806 } 4807 4808 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4809 struct ieee80211_chanctx_conf *ctx) 4810 { 4811 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4812 struct iwl_mvm_phy_ctxt *phy_ctxt; 4813 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4814 iwl_mvm_enable_fils(mvm, ctx); 4815 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4816 int ret; 4817 4818 lockdep_assert_held(&mvm->mutex); 4819 4820 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4821 4822 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4823 if (!phy_ctxt) { 4824 ret = -ENOSPC; 4825 goto out; 4826 } 4827 4828 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, 4829 ctx->rx_chains_static, 4830 ctx->rx_chains_dynamic); 4831 if (ret) { 4832 IWL_ERR(mvm, "Failed to add PHY context\n"); 4833 goto out; 4834 } 4835 4836 *phy_ctxt_id = phy_ctxt->id; 4837 out: 4838 return ret; 4839 } 4840 4841 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4842 struct ieee80211_chanctx_conf *ctx) 4843 { 4844 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4845 int ret; 4846 4847 mutex_lock(&mvm->mutex); 4848 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4849 mutex_unlock(&mvm->mutex); 4850 4851 return ret; 4852 } 4853 4854 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4855 struct ieee80211_chanctx_conf *ctx) 4856 { 4857 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4858 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4859 4860 lockdep_assert_held(&mvm->mutex); 4861 4862 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4863 } 4864 4865 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4866 struct ieee80211_chanctx_conf *ctx) 4867 { 4868 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4869 4870 mutex_lock(&mvm->mutex); 4871 __iwl_mvm_remove_chanctx(mvm, ctx); 4872 mutex_unlock(&mvm->mutex); 4873 } 4874 4875 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4876 struct ieee80211_chanctx_conf *ctx, u32 changed) 4877 { 4878 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4879 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4880 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4881 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4882 iwl_mvm_enable_fils(mvm, ctx); 4883 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4884 4885 if (WARN_ONCE((phy_ctxt->ref > 1) && 4886 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4887 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4888 IEEE80211_CHANCTX_CHANGE_RADAR | 4889 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4890 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4891 phy_ctxt->ref, changed)) 4892 return; 4893 4894 mutex_lock(&mvm->mutex); 4895 4896 /* we are only changing the min_width, may be a noop */ 4897 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4898 if (phy_ctxt->width == def->width) 4899 goto out_unlock; 4900 4901 /* we are just toggling between 20_NOHT and 20 */ 4902 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4903 def->width <= NL80211_CHAN_WIDTH_20) 4904 goto out_unlock; 4905 } 4906 4907 iwl_mvm_bt_coex_vif_change(mvm); 4908 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4909 ctx->rx_chains_static, 4910 ctx->rx_chains_dynamic); 4911 4912 out_unlock: 4913 mutex_unlock(&mvm->mutex); 4914 } 4915 4916 /* 4917 * This function executes the common part for MLD and non-MLD modes. 4918 * 4919 * Returns true if we're done assigning the chanctx 4920 * (either on failure or success) 4921 */ 4922 static bool 4923 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4924 struct ieee80211_vif *vif, 4925 struct ieee80211_chanctx_conf *ctx, 4926 bool switching_chanctx, int *ret) 4927 { 4928 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4929 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4930 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4931 4932 lockdep_assert_held(&mvm->mutex); 4933 4934 mvmvif->deflink.phy_ctxt = phy_ctxt; 4935 4936 switch (vif->type) { 4937 case NL80211_IFTYPE_AP: 4938 /* only needed if we're switching chanctx (i.e. during CSA) */ 4939 if (switching_chanctx) { 4940 mvmvif->ap_ibss_active = true; 4941 break; 4942 } 4943 fallthrough; 4944 case NL80211_IFTYPE_ADHOC: 4945 /* 4946 * The AP binding flow is handled as part of the start_ap flow 4947 * (in bss_info_changed), similarly for IBSS. 4948 */ 4949 *ret = 0; 4950 return true; 4951 case NL80211_IFTYPE_STATION: 4952 break; 4953 case NL80211_IFTYPE_MONITOR: 4954 /* always disable PS when a monitor interface is active */ 4955 mvmvif->ps_disabled = true; 4956 break; 4957 default: 4958 *ret = -EINVAL; 4959 return true; 4960 } 4961 return false; 4962 } 4963 4964 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4965 struct ieee80211_vif *vif, 4966 struct ieee80211_bss_conf *link_conf, 4967 struct ieee80211_chanctx_conf *ctx, 4968 bool switching_chanctx) 4969 { 4970 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4971 int ret; 4972 4973 if (WARN_ON(!link_conf)) 4974 return -EINVAL; 4975 4976 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4977 switching_chanctx, &ret)) 4978 goto out; 4979 4980 ret = iwl_mvm_binding_add_vif(mvm, vif); 4981 if (ret) 4982 goto out; 4983 4984 /* 4985 * Power state must be updated before quotas, 4986 * otherwise fw will complain. 4987 */ 4988 iwl_mvm_power_update_mac(mvm); 4989 4990 /* Setting the quota at this stage is only required for monitor 4991 * interfaces. For the other types, the bss_info changed flow 4992 * will handle quota settings. 4993 */ 4994 if (vif->type == NL80211_IFTYPE_MONITOR) { 4995 mvmvif->monitor_active = true; 4996 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4997 if (ret) 4998 goto out_remove_binding; 4999 5000 ret = iwl_mvm_add_snif_sta(mvm, vif); 5001 if (ret) 5002 goto out_remove_binding; 5003 5004 } 5005 5006 /* Handle binding during CSA */ 5007 if (vif->type == NL80211_IFTYPE_AP) { 5008 iwl_mvm_update_quotas(mvm, false, NULL); 5009 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5010 } 5011 5012 if (vif->type == NL80211_IFTYPE_STATION) { 5013 if (!switching_chanctx) { 5014 mvmvif->csa_bcn_pending = false; 5015 goto out; 5016 } 5017 5018 mvmvif->csa_bcn_pending = true; 5019 5020 if (!fw_has_capa(&mvm->fw->ucode_capa, 5021 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5022 u32 duration = 5 * vif->bss_conf.beacon_int; 5023 5024 /* Protect the session to make sure we hear the first 5025 * beacon on the new channel. 5026 */ 5027 iwl_mvm_protect_session(mvm, vif, duration, duration, 5028 vif->bss_conf.beacon_int / 2, 5029 true); 5030 } 5031 5032 iwl_mvm_update_quotas(mvm, false, NULL); 5033 } 5034 5035 goto out; 5036 5037 out_remove_binding: 5038 iwl_mvm_binding_remove_vif(mvm, vif); 5039 iwl_mvm_power_update_mac(mvm); 5040 out: 5041 if (ret) 5042 mvmvif->deflink.phy_ctxt = NULL; 5043 return ret; 5044 } 5045 5046 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5047 struct ieee80211_vif *vif, 5048 struct ieee80211_bss_conf *link_conf, 5049 struct ieee80211_chanctx_conf *ctx) 5050 { 5051 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5052 int ret; 5053 5054 mutex_lock(&mvm->mutex); 5055 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5056 mutex_unlock(&mvm->mutex); 5057 5058 return ret; 5059 } 5060 5061 /* 5062 * This function executes the common part for MLD and non-MLD modes. 5063 * 5064 * Returns if chanctx unassign chanctx is done 5065 * (either on failure or success) 5066 */ 5067 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5068 struct ieee80211_vif *vif, 5069 bool switching_chanctx) 5070 { 5071 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5072 5073 lockdep_assert_held(&mvm->mutex); 5074 iwl_mvm_remove_time_event(mvm, mvmvif, 5075 &mvmvif->time_event_data); 5076 5077 switch (vif->type) { 5078 case NL80211_IFTYPE_ADHOC: 5079 return true; 5080 case NL80211_IFTYPE_MONITOR: 5081 mvmvif->monitor_active = false; 5082 mvmvif->ps_disabled = false; 5083 break; 5084 case NL80211_IFTYPE_AP: 5085 /* This part is triggered only during CSA */ 5086 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5087 return true; 5088 5089 mvmvif->csa_countdown = false; 5090 5091 /* Set CS bit on all the stations */ 5092 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5093 5094 /* Save blocked iface, the timeout is set on the next beacon */ 5095 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5096 5097 mvmvif->ap_ibss_active = false; 5098 break; 5099 default: 5100 break; 5101 } 5102 return false; 5103 } 5104 5105 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5106 struct ieee80211_vif *vif, 5107 struct ieee80211_bss_conf *link_conf, 5108 struct ieee80211_chanctx_conf *ctx, 5109 bool switching_chanctx) 5110 { 5111 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5112 struct ieee80211_vif *disabled_vif = NULL; 5113 5114 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5115 goto out; 5116 5117 if (vif->type == NL80211_IFTYPE_MONITOR) 5118 iwl_mvm_rm_snif_sta(mvm, vif); 5119 5120 5121 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5122 disabled_vif = vif; 5123 if (!fw_has_capa(&mvm->fw->ucode_capa, 5124 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5125 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5126 } 5127 5128 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5129 iwl_mvm_binding_remove_vif(mvm, vif); 5130 5131 out: 5132 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5133 switching_chanctx) 5134 return; 5135 mvmvif->deflink.phy_ctxt = NULL; 5136 iwl_mvm_power_update_mac(mvm); 5137 } 5138 5139 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5140 struct ieee80211_vif *vif, 5141 struct ieee80211_bss_conf *link_conf, 5142 struct ieee80211_chanctx_conf *ctx) 5143 { 5144 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5145 5146 mutex_lock(&mvm->mutex); 5147 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5148 mutex_unlock(&mvm->mutex); 5149 } 5150 5151 static int 5152 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5153 struct ieee80211_vif_chanctx_switch *vifs, 5154 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5155 { 5156 int ret; 5157 5158 mutex_lock(&mvm->mutex); 5159 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5160 vifs[0].old_ctx, true); 5161 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5162 5163 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5164 if (ret) { 5165 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5166 goto out_reassign; 5167 } 5168 5169 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5170 vifs[0].new_ctx, true); 5171 if (ret) { 5172 IWL_ERR(mvm, 5173 "failed to assign new_ctx during channel switch\n"); 5174 goto out_remove; 5175 } 5176 5177 /* we don't support TDLS during DCM - can be caused by channel switch */ 5178 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5179 iwl_mvm_teardown_tdls_peers(mvm); 5180 5181 goto out; 5182 5183 out_remove: 5184 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5185 5186 out_reassign: 5187 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5188 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5189 goto out_restart; 5190 } 5191 5192 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5193 vifs[0].old_ctx, true)) { 5194 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5195 goto out_restart; 5196 } 5197 5198 goto out; 5199 5200 out_restart: 5201 /* things keep failing, better restart the hw */ 5202 iwl_mvm_nic_restart(mvm, false); 5203 5204 out: 5205 mutex_unlock(&mvm->mutex); 5206 5207 return ret; 5208 } 5209 5210 static int 5211 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5212 struct ieee80211_vif_chanctx_switch *vifs, 5213 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5214 { 5215 int ret; 5216 5217 mutex_lock(&mvm->mutex); 5218 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5219 vifs[0].old_ctx, true); 5220 5221 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5222 vifs[0].new_ctx, true); 5223 if (ret) { 5224 IWL_ERR(mvm, 5225 "failed to assign new_ctx during channel switch\n"); 5226 goto out_reassign; 5227 } 5228 5229 goto out; 5230 5231 out_reassign: 5232 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5233 vifs[0].old_ctx, true)) { 5234 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5235 goto out_restart; 5236 } 5237 5238 goto out; 5239 5240 out_restart: 5241 /* things keep failing, better restart the hw */ 5242 iwl_mvm_nic_restart(mvm, false); 5243 5244 out: 5245 mutex_unlock(&mvm->mutex); 5246 5247 return ret; 5248 } 5249 5250 /* Execute the common part for both MLD and non-MLD modes */ 5251 int 5252 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5253 struct ieee80211_vif_chanctx_switch *vifs, 5254 int n_vifs, 5255 enum ieee80211_chanctx_switch_mode mode, 5256 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5257 { 5258 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5259 int ret; 5260 5261 /* we only support a single-vif right now */ 5262 if (n_vifs > 1) 5263 return -EOPNOTSUPP; 5264 5265 switch (mode) { 5266 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5267 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5268 break; 5269 case CHANCTX_SWMODE_REASSIGN_VIF: 5270 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5271 break; 5272 default: 5273 ret = -EOPNOTSUPP; 5274 break; 5275 } 5276 5277 return ret; 5278 } 5279 5280 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5281 struct ieee80211_vif_chanctx_switch *vifs, 5282 int n_vifs, 5283 enum ieee80211_chanctx_switch_mode mode) 5284 { 5285 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5286 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5287 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5288 }; 5289 5290 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5291 } 5292 5293 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5294 { 5295 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5296 5297 return mvm->ibss_manager; 5298 } 5299 5300 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5301 bool set) 5302 { 5303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5304 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5305 5306 if (!mvm_sta || !mvm_sta->vif) { 5307 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5308 return -EINVAL; 5309 } 5310 5311 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5312 &mvm_sta->vif->bss_conf); 5313 } 5314 5315 #ifdef CONFIG_NL80211_TESTMODE 5316 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5317 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5318 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5319 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5320 }; 5321 5322 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5323 struct ieee80211_vif *vif, 5324 void *data, int len) 5325 { 5326 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5327 int err; 5328 u32 noa_duration; 5329 5330 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5331 iwl_mvm_tm_policy, NULL); 5332 if (err) 5333 return err; 5334 5335 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5336 return -EINVAL; 5337 5338 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5339 case IWL_MVM_TM_CMD_SET_NOA: 5340 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5341 !vif->bss_conf.enable_beacon || 5342 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5343 return -EINVAL; 5344 5345 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5346 if (noa_duration >= vif->bss_conf.beacon_int) 5347 return -EINVAL; 5348 5349 mvm->noa_duration = noa_duration; 5350 mvm->noa_vif = vif; 5351 5352 return iwl_mvm_update_quotas(mvm, true, NULL); 5353 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5354 /* must be associated client vif - ignore authorized */ 5355 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5356 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5357 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5358 return -EINVAL; 5359 5360 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5361 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5362 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5363 } 5364 5365 return -EOPNOTSUPP; 5366 } 5367 5368 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5369 struct ieee80211_vif *vif, 5370 void *data, int len) 5371 { 5372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5373 int err; 5374 5375 mutex_lock(&mvm->mutex); 5376 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5377 mutex_unlock(&mvm->mutex); 5378 5379 return err; 5380 } 5381 #endif 5382 5383 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5384 struct ieee80211_channel_switch *chsw) 5385 { 5386 /* By implementing this operation, we prevent mac80211 from 5387 * starting its own channel switch timer, so that we can call 5388 * ieee80211_chswitch_done() ourselves at the right time 5389 * (which is when the absence time event starts). 5390 */ 5391 5392 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5393 "dummy channel switch op\n"); 5394 } 5395 5396 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5397 struct ieee80211_vif *vif, 5398 struct ieee80211_channel_switch *chsw) 5399 { 5400 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5401 struct iwl_chan_switch_te_cmd cmd = { 5402 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5403 mvmvif->color)), 5404 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5405 .tsf = cpu_to_le32(chsw->timestamp), 5406 .cs_count = chsw->count, 5407 .cs_mode = chsw->block_tx, 5408 }; 5409 5410 lockdep_assert_held(&mvm->mutex); 5411 5412 if (chsw->delay) 5413 cmd.cs_delayed_bcn_count = 5414 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5415 5416 return iwl_mvm_send_cmd_pdu(mvm, 5417 WIDE_ID(MAC_CONF_GROUP, 5418 CHANNEL_SWITCH_TIME_EVENT_CMD), 5419 0, sizeof(cmd), &cmd); 5420 } 5421 5422 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5423 struct ieee80211_vif *vif, 5424 struct ieee80211_channel_switch *chsw) 5425 { 5426 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5427 u32 apply_time; 5428 5429 /* Schedule the time event to a bit before beacon 1, 5430 * to make sure we're in the new channel when the 5431 * GO/AP arrives. In case count <= 1 immediately schedule the 5432 * TE (this might result with some packet loss or connection 5433 * loss). 5434 */ 5435 if (chsw->count <= 1) 5436 apply_time = 0; 5437 else 5438 apply_time = chsw->device_timestamp + 5439 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5440 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5441 5442 if (chsw->block_tx) 5443 iwl_mvm_csa_client_absent(mvm, vif); 5444 5445 if (mvmvif->bf_data.bf_enabled) { 5446 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5447 5448 if (ret) 5449 return ret; 5450 } 5451 5452 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5453 apply_time); 5454 5455 return 0; 5456 } 5457 5458 #define IWL_MAX_CSA_BLOCK_TX 1500 5459 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5460 struct ieee80211_vif *vif, 5461 struct ieee80211_channel_switch *chsw) 5462 { 5463 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5464 struct ieee80211_vif *csa_vif; 5465 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5466 int ret; 5467 5468 mutex_lock(&mvm->mutex); 5469 5470 mvmvif->csa_failed = false; 5471 5472 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5473 chsw->chandef.center_freq1); 5474 5475 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5476 ieee80211_vif_to_wdev(vif), 5477 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5478 5479 switch (vif->type) { 5480 case NL80211_IFTYPE_AP: 5481 csa_vif = 5482 rcu_dereference_protected(mvm->csa_vif, 5483 lockdep_is_held(&mvm->mutex)); 5484 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5485 "Another CSA is already in progress")) { 5486 ret = -EBUSY; 5487 goto out_unlock; 5488 } 5489 5490 /* we still didn't unblock tx. prevent new CS meanwhile */ 5491 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5492 lockdep_is_held(&mvm->mutex))) { 5493 ret = -EBUSY; 5494 goto out_unlock; 5495 } 5496 5497 rcu_assign_pointer(mvm->csa_vif, vif); 5498 5499 if (WARN_ONCE(mvmvif->csa_countdown, 5500 "Previous CSA countdown didn't complete")) { 5501 ret = -EBUSY; 5502 goto out_unlock; 5503 } 5504 5505 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5506 5507 break; 5508 case NL80211_IFTYPE_STATION: 5509 /* 5510 * In the new flow FW is in charge of timing the switch so there 5511 * is no need for all of this 5512 */ 5513 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5514 CHANNEL_SWITCH_ERROR_NOTIF, 5515 0)) 5516 break; 5517 5518 /* 5519 * We haven't configured the firmware to be associated yet since 5520 * we don't know the dtim period. In this case, the firmware can't 5521 * track the beacons. 5522 */ 5523 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5524 ret = -EBUSY; 5525 goto out_unlock; 5526 } 5527 5528 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5529 hweight16(vif->valid_links) <= 1) 5530 schedule_delayed_work(&mvmvif->csa_work, 0); 5531 5532 if (chsw->block_tx) { 5533 /* 5534 * In case of undetermined / long time with immediate 5535 * quiet monitor status to gracefully disconnect 5536 */ 5537 if (!chsw->count || 5538 chsw->count * vif->bss_conf.beacon_int > 5539 IWL_MAX_CSA_BLOCK_TX) 5540 schedule_delayed_work(&mvmvif->csa_work, 5541 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5542 } 5543 5544 if (!fw_has_capa(&mvm->fw->ucode_capa, 5545 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5546 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5547 if (ret) 5548 goto out_unlock; 5549 } else { 5550 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5551 } 5552 5553 mvmvif->csa_count = chsw->count; 5554 mvmvif->csa_misbehave = false; 5555 break; 5556 default: 5557 break; 5558 } 5559 5560 mvmvif->ps_disabled = true; 5561 5562 ret = iwl_mvm_power_update_ps(mvm); 5563 if (ret) 5564 goto out_unlock; 5565 5566 /* we won't be on this channel any longer */ 5567 iwl_mvm_teardown_tdls_peers(mvm); 5568 5569 out_unlock: 5570 mutex_unlock(&mvm->mutex); 5571 5572 return ret; 5573 } 5574 5575 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5576 struct ieee80211_vif *vif, 5577 struct ieee80211_channel_switch *chsw) 5578 { 5579 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5580 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5581 struct iwl_chan_switch_te_cmd cmd = { 5582 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5583 mvmvif->color)), 5584 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5585 .tsf = cpu_to_le32(chsw->timestamp), 5586 .cs_count = chsw->count, 5587 .cs_mode = chsw->block_tx, 5588 }; 5589 5590 /* 5591 * In the new flow FW is in charge of timing the switch so there is no 5592 * need for all of this 5593 */ 5594 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5595 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5596 return; 5597 5598 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5599 return; 5600 5601 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5602 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5603 5604 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5605 if (mvmvif->csa_misbehave) { 5606 /* Second time, give up on this AP*/ 5607 iwl_mvm_abort_channel_switch(hw, vif); 5608 ieee80211_chswitch_done(vif, false, 0); 5609 mvmvif->csa_misbehave = false; 5610 return; 5611 } 5612 mvmvif->csa_misbehave = true; 5613 } 5614 mvmvif->csa_count = chsw->count; 5615 5616 mutex_lock(&mvm->mutex); 5617 if (mvmvif->csa_failed) 5618 goto out_unlock; 5619 5620 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5621 WIDE_ID(MAC_CONF_GROUP, 5622 CHANNEL_SWITCH_TIME_EVENT_CMD), 5623 0, sizeof(cmd), &cmd)); 5624 out_unlock: 5625 mutex_unlock(&mvm->mutex); 5626 } 5627 5628 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5629 { 5630 int i; 5631 5632 if (!iwl_mvm_has_new_tx_api(mvm)) { 5633 if (drop) { 5634 mutex_lock(&mvm->mutex); 5635 iwl_mvm_flush_tx_path(mvm, 5636 iwl_mvm_flushable_queues(mvm) & queues); 5637 mutex_unlock(&mvm->mutex); 5638 } else { 5639 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5640 } 5641 return; 5642 } 5643 5644 mutex_lock(&mvm->mutex); 5645 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5646 struct ieee80211_sta *sta; 5647 5648 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5649 lockdep_is_held(&mvm->mutex)); 5650 if (IS_ERR_OR_NULL(sta)) 5651 continue; 5652 5653 if (drop) 5654 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5655 else 5656 iwl_mvm_wait_sta_queues_empty(mvm, 5657 iwl_mvm_sta_from_mac80211(sta)); 5658 } 5659 mutex_unlock(&mvm->mutex); 5660 } 5661 5662 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5663 u32 queues, bool drop) 5664 { 5665 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5666 struct iwl_mvm_vif *mvmvif; 5667 struct iwl_mvm_sta *mvmsta; 5668 struct ieee80211_sta *sta; 5669 bool ap_sta_done = false; 5670 int i; 5671 u32 msk = 0; 5672 5673 if (!vif) { 5674 iwl_mvm_flush_no_vif(mvm, queues, drop); 5675 return; 5676 } 5677 5678 /* Make sure we're done with the deferred traffic before flushing */ 5679 flush_work(&mvm->add_stream_wk); 5680 5681 mutex_lock(&mvm->mutex); 5682 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5683 5684 /* flush the AP-station and all TDLS peers */ 5685 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5686 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5687 lockdep_is_held(&mvm->mutex)); 5688 if (IS_ERR_OR_NULL(sta)) 5689 continue; 5690 5691 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5692 if (mvmsta->vif != vif) 5693 continue; 5694 5695 if (sta == mvmvif->ap_sta) { 5696 if (ap_sta_done) 5697 continue; 5698 ap_sta_done = true; 5699 } 5700 5701 if (drop) { 5702 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5703 mvmsta->tfd_queue_msk)) 5704 IWL_ERR(mvm, "flush request fail\n"); 5705 } else { 5706 if (iwl_mvm_has_new_tx_api(mvm)) 5707 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5708 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5709 msk |= mvmsta->tfd_queue_msk; 5710 } 5711 } 5712 5713 mutex_unlock(&mvm->mutex); 5714 5715 /* this can take a while, and we may need/want other operations 5716 * to succeed while doing this, so do it without the mutex held 5717 */ 5718 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5719 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5720 } 5721 5722 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5723 struct ieee80211_sta *sta) 5724 { 5725 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5726 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5727 struct iwl_mvm_link_sta *mvm_link_sta; 5728 struct ieee80211_link_sta *link_sta; 5729 int link_id; 5730 5731 mutex_lock(&mvm->mutex); 5732 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5733 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5734 lockdep_is_held(&mvm->mutex)); 5735 if (!mvm_link_sta) 5736 continue; 5737 5738 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5739 mvmsta->tfd_queue_msk)) 5740 IWL_ERR(mvm, "flush request fail\n"); 5741 } 5742 mutex_unlock(&mvm->mutex); 5743 } 5744 5745 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5746 struct survey_info *survey) 5747 { 5748 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5749 int ret = 0; 5750 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5751 WIDE_ID(SYSTEM_GROUP, 5752 SYSTEM_STATISTICS_CMD), 5753 IWL_FW_CMD_VER_UNKNOWN); 5754 5755 memset(survey, 0, sizeof(*survey)); 5756 5757 /* only support global statistics right now */ 5758 if (idx != 0) 5759 return -ENOENT; 5760 5761 if (!fw_has_capa(&mvm->fw->ucode_capa, 5762 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5763 return -ENOENT; 5764 5765 mutex_lock(&mvm->mutex); 5766 5767 if (iwl_mvm_firmware_running(mvm)) { 5768 ret = iwl_mvm_request_statistics(mvm, false); 5769 if (ret) 5770 goto out; 5771 } 5772 5773 survey->filled = SURVEY_INFO_TIME_RX | 5774 SURVEY_INFO_TIME_TX; 5775 5776 survey->time_rx = mvm->accu_radio_stats.rx_time + 5777 mvm->radio_stats.rx_time; 5778 do_div(survey->time_rx, USEC_PER_MSEC); 5779 5780 survey->time_tx = mvm->accu_radio_stats.tx_time + 5781 mvm->radio_stats.tx_time; 5782 do_div(survey->time_tx, USEC_PER_MSEC); 5783 5784 /* the new fw api doesn't support the following fields */ 5785 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 5786 goto out; 5787 5788 survey->filled |= SURVEY_INFO_TIME | 5789 SURVEY_INFO_TIME_SCAN; 5790 survey->time = mvm->accu_radio_stats.on_time_rf + 5791 mvm->radio_stats.on_time_rf; 5792 do_div(survey->time, USEC_PER_MSEC); 5793 5794 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5795 mvm->radio_stats.on_time_scan; 5796 do_div(survey->time_scan, USEC_PER_MSEC); 5797 5798 out: 5799 mutex_unlock(&mvm->mutex); 5800 return ret; 5801 } 5802 5803 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5804 { 5805 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5806 u32 gi_ltf; 5807 5808 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5809 case RATE_MCS_CHAN_WIDTH_20: 5810 rinfo->bw = RATE_INFO_BW_20; 5811 break; 5812 case RATE_MCS_CHAN_WIDTH_40: 5813 rinfo->bw = RATE_INFO_BW_40; 5814 break; 5815 case RATE_MCS_CHAN_WIDTH_80: 5816 rinfo->bw = RATE_INFO_BW_80; 5817 break; 5818 case RATE_MCS_CHAN_WIDTH_160: 5819 rinfo->bw = RATE_INFO_BW_160; 5820 break; 5821 case RATE_MCS_CHAN_WIDTH_320: 5822 rinfo->bw = RATE_INFO_BW_320; 5823 break; 5824 } 5825 5826 if (format == RATE_MCS_CCK_MSK || 5827 format == RATE_MCS_LEGACY_OFDM_MSK) { 5828 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5829 5830 /* add the offset needed to get to the legacy ofdm indices */ 5831 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5832 rate += IWL_FIRST_OFDM_RATE; 5833 5834 switch (rate) { 5835 case IWL_RATE_1M_INDEX: 5836 rinfo->legacy = 10; 5837 break; 5838 case IWL_RATE_2M_INDEX: 5839 rinfo->legacy = 20; 5840 break; 5841 case IWL_RATE_5M_INDEX: 5842 rinfo->legacy = 55; 5843 break; 5844 case IWL_RATE_11M_INDEX: 5845 rinfo->legacy = 110; 5846 break; 5847 case IWL_RATE_6M_INDEX: 5848 rinfo->legacy = 60; 5849 break; 5850 case IWL_RATE_9M_INDEX: 5851 rinfo->legacy = 90; 5852 break; 5853 case IWL_RATE_12M_INDEX: 5854 rinfo->legacy = 120; 5855 break; 5856 case IWL_RATE_18M_INDEX: 5857 rinfo->legacy = 180; 5858 break; 5859 case IWL_RATE_24M_INDEX: 5860 rinfo->legacy = 240; 5861 break; 5862 case IWL_RATE_36M_INDEX: 5863 rinfo->legacy = 360; 5864 break; 5865 case IWL_RATE_48M_INDEX: 5866 rinfo->legacy = 480; 5867 break; 5868 case IWL_RATE_54M_INDEX: 5869 rinfo->legacy = 540; 5870 } 5871 return; 5872 } 5873 5874 rinfo->nss = u32_get_bits(rate_n_flags, 5875 RATE_MCS_NSS_MSK) + 1; 5876 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5877 RATE_HT_MCS_INDEX(rate_n_flags) : 5878 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5879 5880 if (rate_n_flags & RATE_MCS_SGI_MSK) 5881 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5882 5883 switch (format) { 5884 case RATE_MCS_EHT_MSK: 5885 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5886 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5887 break; 5888 case RATE_MCS_HE_MSK: 5889 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5890 5891 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5892 5893 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5894 rinfo->bw = RATE_INFO_BW_HE_RU; 5895 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5896 } 5897 5898 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5899 case RATE_MCS_HE_TYPE_SU: 5900 case RATE_MCS_HE_TYPE_EXT_SU: 5901 if (gi_ltf == 0 || gi_ltf == 1) 5902 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5903 else if (gi_ltf == 2) 5904 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5905 else if (gi_ltf == 3) 5906 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5907 else 5908 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5909 break; 5910 case RATE_MCS_HE_TYPE_MU: 5911 if (gi_ltf == 0 || gi_ltf == 1) 5912 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5913 else if (gi_ltf == 2) 5914 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5915 else 5916 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5917 break; 5918 case RATE_MCS_HE_TYPE_TRIG: 5919 if (gi_ltf == 0 || gi_ltf == 1) 5920 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5921 else 5922 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5923 break; 5924 } 5925 5926 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5927 rinfo->he_dcm = 1; 5928 break; 5929 case RATE_MCS_HT_MSK: 5930 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5931 break; 5932 case RATE_MCS_VHT_MSK: 5933 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5934 break; 5935 } 5936 } 5937 5938 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5939 struct ieee80211_vif *vif, 5940 struct ieee80211_sta *sta, 5941 struct station_info *sinfo) 5942 { 5943 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5944 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5945 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5946 int i; 5947 5948 if (mvmsta->deflink.avg_energy) { 5949 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5950 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5951 } 5952 5953 if (iwl_mvm_has_tlc_offload(mvm)) { 5954 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5955 5956 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5957 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5958 } 5959 5960 /* if beacon filtering isn't on mac80211 does it anyway */ 5961 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5962 return; 5963 5964 if (!vif->cfg.assoc) 5965 return; 5966 5967 mutex_lock(&mvm->mutex); 5968 5969 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5970 goto unlock; 5971 5972 if (iwl_mvm_request_statistics(mvm, false)) 5973 goto unlock; 5974 5975 sinfo->rx_beacon = 0; 5976 for_each_mvm_vif_valid_link(mvmvif, i) 5977 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 5978 mvmvif->link[i]->beacon_stats.accu_num_beacons; 5979 5980 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5981 if (mvmvif->deflink.beacon_stats.avg_signal) { 5982 /* firmware only reports a value after RXing a few beacons */ 5983 sinfo->rx_beacon_signal_avg = 5984 mvmvif->deflink.beacon_stats.avg_signal; 5985 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5986 } 5987 unlock: 5988 mutex_unlock(&mvm->mutex); 5989 } 5990 5991 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5992 struct ieee80211_vif *vif, 5993 const struct ieee80211_mlme_event *mlme) 5994 { 5995 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5996 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5997 iwl_dbg_tlv_time_point(&mvm->fwrt, 5998 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5999 NULL); 6000 return; 6001 } 6002 6003 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6004 iwl_dbg_tlv_time_point(&mvm->fwrt, 6005 IWL_FW_INI_TIME_POINT_DEASSOC, 6006 NULL); 6007 return; 6008 } 6009 } 6010 6011 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6012 struct ieee80211_vif *vif, 6013 const struct ieee80211_event *event) 6014 { 6015 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6016 do { \ 6017 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6018 break; \ 6019 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6020 } while (0) 6021 6022 struct iwl_fw_dbg_trigger_tlv *trig; 6023 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6024 6025 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6026 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6027 return; 6028 } 6029 6030 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6031 FW_DBG_TRIGGER_MLME); 6032 if (!trig) 6033 return; 6034 6035 trig_mlme = (void *)trig->data; 6036 6037 if (event->u.mlme.data == ASSOC_EVENT) { 6038 if (event->u.mlme.status == MLME_DENIED) 6039 CHECK_MLME_TRIGGER(stop_assoc_denied, 6040 "DENIED ASSOC: reason %d", 6041 event->u.mlme.reason); 6042 else if (event->u.mlme.status == MLME_TIMEOUT) 6043 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6044 "ASSOC TIMEOUT"); 6045 } else if (event->u.mlme.data == AUTH_EVENT) { 6046 if (event->u.mlme.status == MLME_DENIED) 6047 CHECK_MLME_TRIGGER(stop_auth_denied, 6048 "DENIED AUTH: reason %d", 6049 event->u.mlme.reason); 6050 else if (event->u.mlme.status == MLME_TIMEOUT) 6051 CHECK_MLME_TRIGGER(stop_auth_timeout, 6052 "AUTH TIMEOUT"); 6053 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6054 CHECK_MLME_TRIGGER(stop_rx_deauth, 6055 "DEAUTH RX %d", event->u.mlme.reason); 6056 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6057 CHECK_MLME_TRIGGER(stop_tx_deauth, 6058 "DEAUTH TX %d", event->u.mlme.reason); 6059 } 6060 #undef CHECK_MLME_TRIGGER 6061 } 6062 6063 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6064 struct ieee80211_vif *vif, 6065 const struct ieee80211_event *event) 6066 { 6067 struct iwl_fw_dbg_trigger_tlv *trig; 6068 struct iwl_fw_dbg_trigger_ba *ba_trig; 6069 6070 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6071 FW_DBG_TRIGGER_BA); 6072 if (!trig) 6073 return; 6074 6075 ba_trig = (void *)trig->data; 6076 6077 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6078 return; 6079 6080 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6081 "BAR received from %pM, tid %d, ssn %d", 6082 event->u.ba.sta->addr, event->u.ba.tid, 6083 event->u.ba.ssn); 6084 } 6085 6086 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6087 struct ieee80211_vif *vif, 6088 const struct ieee80211_event *event) 6089 { 6090 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6091 6092 switch (event->type) { 6093 case MLME_EVENT: 6094 iwl_mvm_event_mlme_callback(mvm, vif, event); 6095 break; 6096 case BAR_RX_EVENT: 6097 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6098 break; 6099 case BA_FRAME_TIMEOUT: 6100 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6101 event->u.ba.tid); 6102 break; 6103 default: 6104 break; 6105 } 6106 } 6107 6108 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6109 enum iwl_mvm_rxq_notif_type type, 6110 bool sync, 6111 const void *data, u32 size) 6112 { 6113 struct { 6114 struct iwl_rxq_sync_cmd cmd; 6115 struct iwl_mvm_internal_rxq_notif notif; 6116 } __packed cmd = { 6117 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6118 .cmd.count = 6119 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6120 size), 6121 .notif.type = type, 6122 .notif.sync = sync, 6123 }; 6124 struct iwl_host_cmd hcmd = { 6125 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6126 .data[0] = &cmd, 6127 .len[0] = sizeof(cmd), 6128 .data[1] = data, 6129 .len[1] = size, 6130 .flags = sync ? 0 : CMD_ASYNC, 6131 }; 6132 int ret; 6133 6134 /* size must be a multiple of DWORD */ 6135 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6136 return; 6137 6138 if (!iwl_mvm_has_new_rx_api(mvm)) 6139 return; 6140 6141 if (sync) { 6142 cmd.notif.cookie = mvm->queue_sync_cookie; 6143 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6144 } 6145 6146 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6147 if (ret) { 6148 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6149 goto out; 6150 } 6151 6152 if (sync) { 6153 lockdep_assert_held(&mvm->mutex); 6154 ret = wait_event_timeout(mvm->rx_sync_waitq, 6155 READ_ONCE(mvm->queue_sync_state) == 0 || 6156 iwl_mvm_is_radio_killed(mvm), 6157 HZ); 6158 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6159 "queue sync: failed to sync, state is 0x%lx\n", 6160 mvm->queue_sync_state); 6161 } 6162 6163 out: 6164 if (sync) { 6165 mvm->queue_sync_state = 0; 6166 mvm->queue_sync_cookie++; 6167 } 6168 } 6169 6170 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6171 { 6172 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6173 6174 mutex_lock(&mvm->mutex); 6175 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6176 mutex_unlock(&mvm->mutex); 6177 } 6178 6179 int 6180 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6181 struct ieee80211_vif *vif, 6182 struct cfg80211_ftm_responder_stats *stats) 6183 { 6184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6185 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6186 6187 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6188 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6189 return -EINVAL; 6190 6191 mutex_lock(&mvm->mutex); 6192 *stats = mvm->ftm_resp_stats; 6193 mutex_unlock(&mvm->mutex); 6194 6195 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6196 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6197 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6198 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6199 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6200 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6201 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6202 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6203 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6204 6205 return 0; 6206 } 6207 6208 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6209 struct cfg80211_pmsr_request *request) 6210 { 6211 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6212 int ret; 6213 6214 mutex_lock(&mvm->mutex); 6215 ret = iwl_mvm_ftm_start(mvm, vif, request); 6216 mutex_unlock(&mvm->mutex); 6217 6218 return ret; 6219 } 6220 6221 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6222 struct cfg80211_pmsr_request *request) 6223 { 6224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6225 6226 mutex_lock(&mvm->mutex); 6227 iwl_mvm_ftm_abort(mvm, request); 6228 mutex_unlock(&mvm->mutex); 6229 } 6230 6231 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6232 { 6233 u8 protocol = ip_hdr(skb)->protocol; 6234 6235 if (!IS_ENABLED(CONFIG_INET)) 6236 return false; 6237 6238 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6239 } 6240 6241 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6242 struct sk_buff *head, 6243 struct sk_buff *skb) 6244 { 6245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6246 6247 /* For now don't aggregate IPv6 in AMSDU */ 6248 if (skb->protocol != htons(ETH_P_IP)) 6249 return false; 6250 6251 if (!iwl_mvm_is_csum_supported(mvm)) 6252 return true; 6253 6254 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6255 } 6256 6257 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6258 struct ieee80211_vif *vif, 6259 struct cfg80211_set_hw_timestamp *hwts) 6260 { 6261 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6262 u32 protocols = 0; 6263 int ret; 6264 6265 /* HW timestamping is only supported for a specific station */ 6266 if (!hwts->macaddr) 6267 return -EOPNOTSUPP; 6268 6269 if (hwts->enable) 6270 protocols = 6271 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6272 6273 mutex_lock(&mvm->mutex); 6274 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6275 mutex_unlock(&mvm->mutex); 6276 6277 return ret; 6278 } 6279 6280 const struct ieee80211_ops iwl_mvm_hw_ops = { 6281 .tx = iwl_mvm_mac_tx, 6282 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6283 .ampdu_action = iwl_mvm_mac_ampdu_action, 6284 .get_antenna = iwl_mvm_op_get_antenna, 6285 .set_antenna = iwl_mvm_op_set_antenna, 6286 .start = iwl_mvm_mac_start, 6287 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6288 .stop = iwl_mvm_mac_stop, 6289 .add_interface = iwl_mvm_mac_add_interface, 6290 .remove_interface = iwl_mvm_mac_remove_interface, 6291 .config = iwl_mvm_mac_config, 6292 .prepare_multicast = iwl_mvm_prepare_multicast, 6293 .configure_filter = iwl_mvm_configure_filter, 6294 .config_iface_filter = iwl_mvm_config_iface_filter, 6295 .bss_info_changed = iwl_mvm_bss_info_changed, 6296 .hw_scan = iwl_mvm_mac_hw_scan, 6297 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6298 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6299 .sta_state = iwl_mvm_mac_sta_state, 6300 .sta_notify = iwl_mvm_mac_sta_notify, 6301 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6302 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6303 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6304 .sta_rc_update = iwl_mvm_sta_rc_update, 6305 .conf_tx = iwl_mvm_mac_conf_tx, 6306 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6307 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6308 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6309 .flush = iwl_mvm_mac_flush, 6310 .flush_sta = iwl_mvm_mac_flush_sta, 6311 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6312 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6313 .set_key = iwl_mvm_mac_set_key, 6314 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6315 .remain_on_channel = iwl_mvm_roc, 6316 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6317 .add_chanctx = iwl_mvm_add_chanctx, 6318 .remove_chanctx = iwl_mvm_remove_chanctx, 6319 .change_chanctx = iwl_mvm_change_chanctx, 6320 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6321 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6322 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6323 6324 .start_ap = iwl_mvm_start_ap, 6325 .stop_ap = iwl_mvm_stop_ap, 6326 .join_ibss = iwl_mvm_start_ibss, 6327 .leave_ibss = iwl_mvm_stop_ibss, 6328 6329 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6330 6331 .set_tim = iwl_mvm_set_tim, 6332 6333 .channel_switch = iwl_mvm_channel_switch, 6334 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6335 .post_channel_switch = iwl_mvm_post_channel_switch, 6336 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6337 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6338 6339 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6340 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6341 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6342 6343 .event_callback = iwl_mvm_mac_event_callback, 6344 6345 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6346 6347 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6348 6349 #ifdef CONFIG_PM_SLEEP 6350 /* look at d3.c */ 6351 .suspend = iwl_mvm_suspend, 6352 .resume = iwl_mvm_resume, 6353 .set_wakeup = iwl_mvm_set_wakeup, 6354 .set_rekey_data = iwl_mvm_set_rekey_data, 6355 #if IS_ENABLED(CONFIG_IPV6) 6356 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6357 #endif 6358 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6359 #endif 6360 .get_survey = iwl_mvm_mac_get_survey, 6361 .sta_statistics = iwl_mvm_mac_sta_statistics, 6362 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6363 .start_pmsr = iwl_mvm_start_pmsr, 6364 .abort_pmsr = iwl_mvm_abort_pmsr, 6365 6366 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6367 #ifdef CONFIG_IWLWIFI_DEBUGFS 6368 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6369 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6370 #endif 6371 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6372 }; 6373