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 if (ret) 3691 return ret; 3692 3693 for_each_sta_active_link(vif, sta, link_sta, i) 3694 link_sta->agg.max_rc_amsdu_len = 1; 3695 3696 ieee80211_sta_recalc_aggregates(sta); 3697 3698 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3699 mvmvif->ap_sta = sta; 3700 3701 return 0; 3702 } 3703 3704 static int 3705 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3706 struct iwl_mvm *mvm, 3707 struct ieee80211_vif *vif, 3708 struct ieee80211_sta *sta, 3709 const struct iwl_mvm_sta_state_ops *callbacks) 3710 { 3711 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3712 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3713 struct ieee80211_link_sta *link_sta; 3714 unsigned int link_id; 3715 3716 lockdep_assert_held(&mvm->mutex); 3717 3718 if (vif->type == NL80211_IFTYPE_AP) { 3719 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3720 mvmvif->ap_assoc_sta_count++; 3721 callbacks->mac_ctxt_changed(mvm, vif, false); 3722 3723 /* since the below is not for MLD API, it's ok to use 3724 * the default bss_conf 3725 */ 3726 if (!mvm->mld_api_is_used && 3727 ((vif->bss_conf.he_support && 3728 !iwlwifi_mod_params.disable_11ax) || 3729 (vif->bss_conf.eht_support && 3730 !iwlwifi_mod_params.disable_11be))) 3731 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3732 } else if (vif->type == NL80211_IFTYPE_STATION) { 3733 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3734 3735 callbacks->mac_ctxt_changed(mvm, vif, false); 3736 3737 if (!mvm->mld_api_is_used) 3738 goto out; 3739 3740 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3741 struct ieee80211_bss_conf *link_conf = 3742 link_conf_dereference_protected(vif, link_id); 3743 3744 if (WARN_ON(!link_conf)) 3745 return -EINVAL; 3746 if (!mvmvif->link[link_id]) 3747 continue; 3748 3749 iwl_mvm_link_changed(mvm, vif, link_conf, 3750 LINK_CONTEXT_MODIFY_ALL & 3751 ~LINK_CONTEXT_MODIFY_ACTIVE, 3752 true); 3753 } 3754 } 3755 3756 out: 3757 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3758 3759 return callbacks->update_sta(mvm, vif, sta); 3760 } 3761 3762 static int 3763 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3764 struct ieee80211_vif *vif, 3765 struct ieee80211_sta *sta, 3766 const struct iwl_mvm_sta_state_ops *callbacks) 3767 { 3768 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3769 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3770 3771 lockdep_assert_held(&mvm->mutex); 3772 3773 /* we don't support TDLS during DCM */ 3774 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3775 iwl_mvm_teardown_tdls_peers(mvm); 3776 3777 if (sta->tdls) { 3778 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3779 NL80211_TDLS_ENABLE_LINK); 3780 } else { 3781 /* enable beacon filtering */ 3782 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3783 3784 mvmvif->authorized = 1; 3785 3786 callbacks->mac_ctxt_changed(mvm, vif, false); 3787 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3788 3789 /* when client is authorized (AP station marked as such), 3790 * try to enable more links 3791 */ 3792 if (vif->type == NL80211_IFTYPE_STATION && 3793 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3794 iwl_mvm_mld_select_links(mvm, vif, false); 3795 } 3796 3797 mvm_sta->authorized = true; 3798 3799 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3800 3801 /* MFP is set by default before the station is authorized. 3802 * Clear it here in case it's not used. 3803 */ 3804 if (!sta->mfp) 3805 return callbacks->update_sta(mvm, vif, sta); 3806 3807 return 0; 3808 } 3809 3810 static int 3811 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3812 struct ieee80211_vif *vif, 3813 struct ieee80211_sta *sta, 3814 const struct iwl_mvm_sta_state_ops *callbacks) 3815 { 3816 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3817 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3818 3819 lockdep_assert_held(&mvm->mutex); 3820 3821 mvmsta->authorized = false; 3822 3823 /* once we move into assoc state, need to update rate scale to 3824 * disable using wide bandwidth 3825 */ 3826 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3827 3828 if (!sta->tdls) { 3829 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3830 * yet to avoid sending high prio again for a little 3831 * time. 3832 */ 3833 mvmvif->authorized = 0; 3834 3835 /* disable beacon filtering */ 3836 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3837 } 3838 3839 return 0; 3840 } 3841 3842 /* Common part for MLD and non-MLD modes */ 3843 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3844 struct ieee80211_vif *vif, 3845 struct ieee80211_sta *sta, 3846 enum ieee80211_sta_state old_state, 3847 enum ieee80211_sta_state new_state, 3848 const struct iwl_mvm_sta_state_ops *callbacks) 3849 { 3850 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3851 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3852 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3853 struct ieee80211_link_sta *link_sta; 3854 unsigned int link_id; 3855 int ret; 3856 3857 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3858 sta->addr, old_state, new_state); 3859 3860 /* 3861 * If we are in a STA removal flow and in DQA mode: 3862 * 3863 * This is after the sync_rcu part, so the queues have already been 3864 * flushed. No more TXs on their way in mac80211's path, and no more in 3865 * the queues. 3866 * Also, we won't be getting any new TX frames for this station. 3867 * What we might have are deferred TX frames that need to be taken care 3868 * of. 3869 * 3870 * Drop any still-queued deferred-frame before removing the STA, and 3871 * make sure the worker is no longer handling frames for this STA. 3872 */ 3873 if (old_state == IEEE80211_STA_NONE && 3874 new_state == IEEE80211_STA_NOTEXIST) { 3875 flush_work(&mvm->add_stream_wk); 3876 3877 /* 3878 * No need to make sure deferred TX indication is off since the 3879 * worker will already remove it if it was on 3880 */ 3881 3882 /* 3883 * Additionally, reset the 40 MHz capability if we disconnected 3884 * from the AP now. 3885 */ 3886 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3887 3888 /* Also free dup data just in case any assertions below fail */ 3889 kfree(mvm_sta->dup_data); 3890 } 3891 3892 mutex_lock(&mvm->mutex); 3893 3894 /* this would be a mac80211 bug ... but don't crash, unless we had a 3895 * firmware crash while we were activating a link, in which case it is 3896 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3897 * recovery flow since we spit tons of error messages anyway. 3898 */ 3899 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3900 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 3901 !mvmvif->link[link_id]->phy_ctxt)) { 3902 mutex_unlock(&mvm->mutex); 3903 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3904 &mvm->status) ? 0 : -EINVAL; 3905 } 3906 } 3907 3908 /* track whether or not the station is associated */ 3909 mvm_sta->sta_state = new_state; 3910 3911 if (old_state == IEEE80211_STA_NOTEXIST && 3912 new_state == IEEE80211_STA_NONE) { 3913 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3914 callbacks); 3915 if (ret < 0) 3916 goto out_unlock; 3917 } else if (old_state == IEEE80211_STA_NONE && 3918 new_state == IEEE80211_STA_AUTH) { 3919 /* 3920 * EBS may be disabled due to previous failures reported by FW. 3921 * Reset EBS status here assuming environment has been changed. 3922 */ 3923 mvm->last_ebs_successful = true; 3924 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3925 ret = 0; 3926 } else if (old_state == IEEE80211_STA_AUTH && 3927 new_state == IEEE80211_STA_ASSOC) { 3928 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3929 callbacks); 3930 } else if (old_state == IEEE80211_STA_ASSOC && 3931 new_state == IEEE80211_STA_AUTHORIZED) { 3932 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3933 callbacks); 3934 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3935 new_state == IEEE80211_STA_ASSOC) { 3936 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3937 callbacks); 3938 } else if (old_state == IEEE80211_STA_ASSOC && 3939 new_state == IEEE80211_STA_AUTH) { 3940 if (vif->type == NL80211_IFTYPE_AP) { 3941 mvmvif->ap_assoc_sta_count--; 3942 callbacks->mac_ctxt_changed(mvm, vif, false); 3943 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3944 iwl_mvm_stop_session_protection(mvm, vif); 3945 ret = 0; 3946 } else if (old_state == IEEE80211_STA_AUTH && 3947 new_state == IEEE80211_STA_NONE) { 3948 ret = 0; 3949 } else if (old_state == IEEE80211_STA_NONE && 3950 new_state == IEEE80211_STA_NOTEXIST) { 3951 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3952 iwl_mvm_stop_session_protection(mvm, vif); 3953 mvmvif->ap_sta = NULL; 3954 } 3955 ret = callbacks->rm_sta(mvm, vif, sta); 3956 if (sta->tdls) { 3957 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3958 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3959 NL80211_TDLS_DISABLE_LINK); 3960 } 3961 3962 if (unlikely(ret && 3963 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3964 &mvm->status))) 3965 ret = 0; 3966 } else { 3967 ret = -EIO; 3968 } 3969 out_unlock: 3970 mutex_unlock(&mvm->mutex); 3971 3972 if (sta->tdls && ret == 0) { 3973 if (old_state == IEEE80211_STA_NOTEXIST && 3974 new_state == IEEE80211_STA_NONE) 3975 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3976 else if (old_state == IEEE80211_STA_NONE && 3977 new_state == IEEE80211_STA_NOTEXIST) 3978 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3979 } 3980 3981 return ret; 3982 } 3983 3984 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3985 { 3986 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3987 3988 mvm->rts_threshold = value; 3989 3990 return 0; 3991 } 3992 3993 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3994 struct ieee80211_sta *sta, u32 changed) 3995 { 3996 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3997 3998 if (changed & (IEEE80211_RC_BW_CHANGED | 3999 IEEE80211_RC_SUPP_RATES_CHANGED | 4000 IEEE80211_RC_NSS_CHANGED)) 4001 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4002 4003 if (vif->type == NL80211_IFTYPE_STATION && 4004 changed & IEEE80211_RC_NSS_CHANGED) 4005 iwl_mvm_sf_update(mvm, vif, false); 4006 } 4007 4008 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4009 struct ieee80211_vif *vif, 4010 unsigned int link_id, u16 ac, 4011 const struct ieee80211_tx_queue_params *params) 4012 { 4013 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4015 4016 mvmvif->deflink.queue_params[ac] = *params; 4017 4018 /* 4019 * No need to update right away, we'll get BSS_CHANGED_QOS 4020 * The exception is P2P_DEVICE interface which needs immediate update. 4021 */ 4022 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4023 int ret; 4024 4025 mutex_lock(&mvm->mutex); 4026 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4027 mutex_unlock(&mvm->mutex); 4028 return ret; 4029 } 4030 return 0; 4031 } 4032 4033 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4034 struct ieee80211_vif *vif, 4035 struct ieee80211_prep_tx_info *info) 4036 { 4037 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4038 4039 mutex_lock(&mvm->mutex); 4040 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4041 mutex_unlock(&mvm->mutex); 4042 } 4043 4044 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4045 struct ieee80211_vif *vif, 4046 struct ieee80211_prep_tx_info *info) 4047 { 4048 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4049 4050 /* for successful cases (auth/assoc), don't cancel session protection */ 4051 if (info->success) 4052 return; 4053 4054 mutex_lock(&mvm->mutex); 4055 iwl_mvm_stop_session_protection(mvm, vif); 4056 mutex_unlock(&mvm->mutex); 4057 } 4058 4059 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4060 struct ieee80211_vif *vif, 4061 struct cfg80211_sched_scan_request *req, 4062 struct ieee80211_scan_ies *ies) 4063 { 4064 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4065 4066 int ret; 4067 4068 mutex_lock(&mvm->mutex); 4069 4070 if (!vif->cfg.idle) { 4071 ret = -EBUSY; 4072 goto out; 4073 } 4074 4075 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4076 4077 out: 4078 mutex_unlock(&mvm->mutex); 4079 return ret; 4080 } 4081 4082 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4083 struct ieee80211_vif *vif) 4084 { 4085 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4086 int ret; 4087 4088 mutex_lock(&mvm->mutex); 4089 4090 /* Due to a race condition, it's possible that mac80211 asks 4091 * us to stop a sched_scan when it's already stopped. This 4092 * can happen, for instance, if we stopped the scan ourselves, 4093 * called ieee80211_sched_scan_stopped() and the userspace called 4094 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4095 * could run. To handle this, simply return if the scan is 4096 * not running. 4097 */ 4098 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4099 mutex_unlock(&mvm->mutex); 4100 return 0; 4101 } 4102 4103 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4104 mutex_unlock(&mvm->mutex); 4105 iwl_mvm_wait_for_async_handlers(mvm); 4106 4107 return ret; 4108 } 4109 4110 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4111 enum set_key_cmd cmd, 4112 struct ieee80211_vif *vif, 4113 struct ieee80211_sta *sta, 4114 struct ieee80211_key_conf *key) 4115 { 4116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4117 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4118 struct iwl_mvm_sta *mvmsta = NULL; 4119 struct iwl_mvm_key_pn *ptk_pn = NULL; 4120 int keyidx = key->keyidx; 4121 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4122 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4123 int ret, i; 4124 u8 key_offset; 4125 4126 if (sta) 4127 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4128 4129 switch (key->cipher) { 4130 case WLAN_CIPHER_SUITE_TKIP: 4131 if (!mvm->trans->trans_cfg->gen2) { 4132 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4133 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4134 } else if (vif->type == NL80211_IFTYPE_STATION) { 4135 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4136 } else { 4137 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4138 return -EOPNOTSUPP; 4139 } 4140 break; 4141 case WLAN_CIPHER_SUITE_CCMP: 4142 case WLAN_CIPHER_SUITE_GCMP: 4143 case WLAN_CIPHER_SUITE_GCMP_256: 4144 if (!iwl_mvm_has_new_tx_api(mvm)) 4145 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4146 break; 4147 case WLAN_CIPHER_SUITE_AES_CMAC: 4148 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4149 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4150 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4151 break; 4152 case WLAN_CIPHER_SUITE_WEP40: 4153 case WLAN_CIPHER_SUITE_WEP104: 4154 if (vif->type == NL80211_IFTYPE_STATION) 4155 break; 4156 if (iwl_mvm_has_new_tx_api(mvm)) 4157 return -EOPNOTSUPP; 4158 /* support HW crypto on TX */ 4159 return 0; 4160 default: 4161 return -EOPNOTSUPP; 4162 } 4163 4164 switch (cmd) { 4165 case SET_KEY: 4166 if (vif->type == NL80211_IFTYPE_STATION && 4167 (keyidx == 6 || keyidx == 7)) 4168 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4169 key); 4170 4171 if ((vif->type == NL80211_IFTYPE_ADHOC || 4172 vif->type == NL80211_IFTYPE_AP) && !sta) { 4173 /* 4174 * GTK on AP interface is a TX-only key, return 0; 4175 * on IBSS they're per-station and because we're lazy 4176 * we don't support them for RX, so do the same. 4177 * CMAC/GMAC in AP/IBSS modes must be done in software 4178 * on older NICs. 4179 * 4180 * Except, of course, beacon protection - it must be 4181 * offloaded since we just set a beacon template, and 4182 * then we must also offload the IGTK (not just BIGTK) 4183 * for firmware reasons. 4184 * 4185 * So just check for beacon protection - if we don't 4186 * have it we cannot get here with keyidx >= 6, and 4187 * if we do have it we need to send the key to FW in 4188 * all cases (CMAC/GMAC). 4189 */ 4190 if (!wiphy_ext_feature_isset(hw->wiphy, 4191 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4192 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4193 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4194 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4195 ret = -EOPNOTSUPP; 4196 break; 4197 } 4198 4199 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4200 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4201 !iwl_mvm_has_new_tx_api(mvm)) { 4202 key->hw_key_idx = STA_KEY_IDX_INVALID; 4203 ret = 0; 4204 break; 4205 } 4206 4207 if (!mvmvif->ap_ibss_active) { 4208 for (i = 0; 4209 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4210 i++) { 4211 if (!mvmvif->ap_early_keys[i]) { 4212 mvmvif->ap_early_keys[i] = key; 4213 break; 4214 } 4215 } 4216 4217 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4218 ret = -ENOSPC; 4219 else 4220 ret = 0; 4221 4222 break; 4223 } 4224 } 4225 4226 /* During FW restart, in order to restore the state as it was, 4227 * don't try to reprogram keys we previously failed for. 4228 */ 4229 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4230 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4231 IWL_DEBUG_MAC80211(mvm, 4232 "skip invalid idx key programming during restart\n"); 4233 ret = 0; 4234 break; 4235 } 4236 4237 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4238 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4239 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4240 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4241 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4242 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4243 struct ieee80211_key_seq seq; 4244 int tid, q; 4245 4246 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4247 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4248 mvm->trans->num_rx_queues), 4249 GFP_KERNEL); 4250 if (!ptk_pn) { 4251 ret = -ENOMEM; 4252 break; 4253 } 4254 4255 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4256 ieee80211_get_key_rx_seq(key, tid, &seq); 4257 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4258 memcpy(ptk_pn->q[q].pn[tid], 4259 seq.ccmp.pn, 4260 IEEE80211_CCMP_PN_LEN); 4261 } 4262 4263 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4264 } 4265 4266 /* in HW restart reuse the index, otherwise request a new one */ 4267 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4268 key_offset = key->hw_key_idx; 4269 else 4270 key_offset = STA_KEY_IDX_INVALID; 4271 4272 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4273 mvmsta->pairwise_cipher = key->cipher; 4274 4275 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4276 sta ? sta->addr : NULL, key->keyidx); 4277 4278 if (sec_key_ver) 4279 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4280 else 4281 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4282 4283 if (ret) { 4284 IWL_WARN(mvm, "set key failed\n"); 4285 key->hw_key_idx = STA_KEY_IDX_INVALID; 4286 if (ptk_pn) { 4287 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4288 kfree(ptk_pn); 4289 } 4290 /* 4291 * can't add key for RX, but we don't need it 4292 * in the device for TX so still return 0, 4293 * unless we have new TX API where we cannot 4294 * put key material into the TX_CMD 4295 */ 4296 if (iwl_mvm_has_new_tx_api(mvm)) 4297 ret = -EOPNOTSUPP; 4298 else 4299 ret = 0; 4300 } 4301 4302 break; 4303 case DISABLE_KEY: 4304 if (vif->type == NL80211_IFTYPE_STATION && 4305 (keyidx == 6 || keyidx == 7)) 4306 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4307 NULL); 4308 4309 ret = -ENOENT; 4310 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4311 if (mvmvif->ap_early_keys[i] == key) { 4312 mvmvif->ap_early_keys[i] = NULL; 4313 ret = 0; 4314 } 4315 } 4316 4317 /* found in pending list - don't do anything else */ 4318 if (ret == 0) 4319 break; 4320 4321 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4322 ret = 0; 4323 break; 4324 } 4325 4326 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4327 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4328 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4329 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4330 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4331 ptk_pn = rcu_dereference_protected( 4332 mvmsta->ptk_pn[keyidx], 4333 lockdep_is_held(&mvm->mutex)); 4334 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4335 if (ptk_pn) 4336 kfree_rcu(ptk_pn, rcu_head); 4337 } 4338 4339 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4340 if (sec_key_ver) 4341 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4342 else 4343 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4344 break; 4345 default: 4346 ret = -EINVAL; 4347 } 4348 4349 return ret; 4350 } 4351 4352 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4353 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4354 struct ieee80211_key_conf *key) 4355 { 4356 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4357 int ret; 4358 4359 mutex_lock(&mvm->mutex); 4360 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4361 mutex_unlock(&mvm->mutex); 4362 4363 return ret; 4364 } 4365 4366 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4367 struct ieee80211_vif *vif, 4368 struct ieee80211_key_conf *keyconf, 4369 struct ieee80211_sta *sta, 4370 u32 iv32, u16 *phase1key) 4371 { 4372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4373 4374 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4375 return; 4376 4377 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4378 } 4379 4380 4381 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4382 struct iwl_rx_packet *pkt, void *data) 4383 { 4384 struct iwl_mvm *mvm = 4385 container_of(notif_wait, struct iwl_mvm, notif_wait); 4386 struct iwl_hs20_roc_res *resp; 4387 int resp_len = iwl_rx_packet_payload_len(pkt); 4388 struct iwl_mvm_time_event_data *te_data = data; 4389 4390 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4391 return true; 4392 4393 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4394 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4395 return true; 4396 } 4397 4398 resp = (void *)pkt->data; 4399 4400 IWL_DEBUG_TE(mvm, 4401 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4402 resp->status, resp->event_unique_id); 4403 4404 te_data->uid = le32_to_cpu(resp->event_unique_id); 4405 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4406 te_data->uid); 4407 4408 spin_lock_bh(&mvm->time_event_lock); 4409 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4410 spin_unlock_bh(&mvm->time_event_lock); 4411 4412 return true; 4413 } 4414 4415 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4416 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4417 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4418 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4419 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4420 4421 static void iwl_mvm_roc_duration_and_delay(struct ieee80211_vif *vif, 4422 u32 duration_ms, 4423 u32 *duration_tu, 4424 u32 *delay) 4425 { 4426 u32 dtim_interval = vif->bss_conf.dtim_period * 4427 vif->bss_conf.beacon_int; 4428 4429 *delay = AUX_ROC_MIN_DELAY; 4430 *duration_tu = MSEC_TO_TU(duration_ms); 4431 4432 /* 4433 * If we are associated we want the delay time to be at least one 4434 * dtim interval so that the FW can wait until after the DTIM and 4435 * then start the time event, this will potentially allow us to 4436 * remain off-channel for the max duration. 4437 * Since we want to use almost a whole dtim interval we would also 4438 * like the delay to be for 2-3 dtim intervals, in case there are 4439 * other time events with higher priority. 4440 */ 4441 if (vif->cfg.assoc) { 4442 *delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4443 /* We cannot remain off-channel longer than the DTIM interval */ 4444 if (dtim_interval <= *duration_tu) { 4445 *duration_tu = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4446 if (*duration_tu <= AUX_ROC_MIN_DURATION) 4447 *duration_tu = dtim_interval - 4448 AUX_ROC_MIN_SAFETY_BUFFER; 4449 } 4450 } 4451 } 4452 4453 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4454 struct ieee80211_channel *channel, 4455 struct ieee80211_vif *vif, 4456 int duration) 4457 { 4458 int res; 4459 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4460 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4461 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4462 struct iwl_notification_wait wait_time_event; 4463 u32 req_dur, delay; 4464 struct iwl_hs20_roc_req aux_roc_req = { 4465 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4466 .id_and_color = 4467 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4468 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4469 }; 4470 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4471 &aux_roc_req.channel_info); 4472 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4473 4474 /* Set the channel info data */ 4475 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4476 iwl_mvm_phy_band_from_nl80211(channel->band), 4477 IWL_PHY_CHANNEL_MODE20, 4478 0); 4479 4480 /* Set the time and duration */ 4481 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4482 4483 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4484 tail->duration = cpu_to_le32(req_dur); 4485 tail->apply_time_max_delay = cpu_to_le32(delay); 4486 4487 IWL_DEBUG_TE(mvm, 4488 "ROC: Requesting to remain on channel %u for %ums\n", 4489 channel->hw_value, req_dur); 4490 IWL_DEBUG_TE(mvm, 4491 "\t(requested = %ums, max_delay = %ums)\n", 4492 duration, delay); 4493 4494 /* Set the node address */ 4495 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4496 4497 lockdep_assert_held(&mvm->mutex); 4498 4499 spin_lock_bh(&mvm->time_event_lock); 4500 4501 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4502 spin_unlock_bh(&mvm->time_event_lock); 4503 return -EIO; 4504 } 4505 4506 te_data->vif = vif; 4507 te_data->duration = duration; 4508 te_data->id = HOT_SPOT_CMD; 4509 4510 spin_unlock_bh(&mvm->time_event_lock); 4511 4512 /* 4513 * Use a notification wait, which really just processes the 4514 * command response and doesn't wait for anything, in order 4515 * to be able to process the response and get the UID inside 4516 * the RX path. Using CMD_WANT_SKB doesn't work because it 4517 * stores the buffer and then wakes up this thread, by which 4518 * time another notification (that the time event started) 4519 * might already be processed unsuccessfully. 4520 */ 4521 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4522 time_event_response, 4523 ARRAY_SIZE(time_event_response), 4524 iwl_mvm_rx_aux_roc, te_data); 4525 4526 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4527 &aux_roc_req); 4528 4529 if (res) { 4530 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4531 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4532 goto out_clear_te; 4533 } 4534 4535 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4536 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4537 /* should never fail */ 4538 WARN_ON_ONCE(res); 4539 4540 if (res) { 4541 out_clear_te: 4542 spin_lock_bh(&mvm->time_event_lock); 4543 iwl_mvm_te_clear_data(mvm, te_data); 4544 spin_unlock_bh(&mvm->time_event_lock); 4545 } 4546 4547 return res; 4548 } 4549 4550 static int iwl_mvm_roc_add_cmd(struct iwl_mvm *mvm, 4551 struct ieee80211_channel *channel, 4552 struct ieee80211_vif *vif, 4553 int duration, u32 activity) 4554 { 4555 int res; 4556 u32 duration_tu, delay; 4557 struct iwl_roc_req roc_req = { 4558 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4559 .activity = cpu_to_le32(activity), 4560 .sta_id = cpu_to_le32(mvm->aux_sta.sta_id), 4561 }; 4562 4563 lockdep_assert_held(&mvm->mutex); 4564 4565 /* Set the channel info data */ 4566 iwl_mvm_set_chan_info(mvm, &roc_req.channel_info, 4567 channel->hw_value, 4568 iwl_mvm_phy_band_from_nl80211(channel->band), 4569 IWL_PHY_CHANNEL_MODE20, 0); 4570 4571 iwl_mvm_roc_duration_and_delay(vif, duration, &duration_tu, 4572 &delay); 4573 roc_req.duration = cpu_to_le32(duration_tu); 4574 roc_req.max_delay = cpu_to_le32(delay); 4575 4576 IWL_DEBUG_TE(mvm, 4577 "\t(requested = %ums, max_delay = %ums)\n", 4578 duration, delay); 4579 IWL_DEBUG_TE(mvm, 4580 "Requesting to remain on channel %u for %utu\n", 4581 channel->hw_value, duration_tu); 4582 4583 /* Set the node address */ 4584 memcpy(roc_req.node_addr, vif->addr, ETH_ALEN); 4585 4586 res = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, ROC_CMD), 4587 0, sizeof(roc_req), &roc_req); 4588 4589 return res; 4590 } 4591 4592 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4593 { 4594 int ret = 0; 4595 4596 lockdep_assert_held(&mvm->mutex); 4597 4598 if (!fw_has_capa(&mvm->fw->ucode_capa, 4599 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4600 IWL_ERR(mvm, "hotspot not supported\n"); 4601 return -EINVAL; 4602 } 4603 4604 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4605 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4606 WARN(ret, "Failed to allocate aux station"); 4607 } 4608 4609 return ret; 4610 } 4611 4612 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4613 { 4614 int ret; 4615 4616 lockdep_assert_held(&mvm->mutex); 4617 4618 ret = iwl_mvm_binding_add_vif(mvm, vif); 4619 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4620 return ret; 4621 4622 /* The station and queue allocation must be done only after the binding 4623 * is done, as otherwise the FW might incorrectly configure its state. 4624 */ 4625 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4626 } 4627 4628 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4629 struct ieee80211_vif *vif, 4630 struct ieee80211_channel *channel, 4631 int duration, 4632 enum ieee80211_roc_type type) 4633 { 4634 static const struct iwl_mvm_roc_ops ops = { 4635 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4636 .link = iwl_mvm_roc_link, 4637 }; 4638 4639 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4640 } 4641 4642 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4643 struct ieee80211_channel *channel, 4644 struct ieee80211_vif *vif, 4645 int duration) 4646 { 4647 int ret; 4648 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4649 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4650 IWL_FW_CMD_VER_UNKNOWN); 4651 4652 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4653 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4654 } else if (fw_ver == 3) { 4655 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4656 ROC_ACTIVITY_HOTSPOT); 4657 } else { 4658 ret = -EOPNOTSUPP; 4659 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4660 } 4661 4662 return ret; 4663 } 4664 4665 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4666 struct ieee80211_vif *vif, 4667 struct ieee80211_channel *channel) 4668 { 4669 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4670 struct cfg80211_chan_def chandef; 4671 int i; 4672 4673 lockdep_assert_held(&mvm->mutex); 4674 4675 if (mvmvif->deflink.phy_ctxt && 4676 channel == mvmvif->deflink.phy_ctxt->channel) 4677 return 0; 4678 4679 /* Try using a PHY context that is already in use */ 4680 for (i = 0; i < NUM_PHY_CTX; i++) { 4681 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4682 4683 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4684 continue; 4685 4686 if (channel == phy_ctxt->channel) { 4687 if (mvmvif->deflink.phy_ctxt) 4688 iwl_mvm_phy_ctxt_unref(mvm, 4689 mvmvif->deflink.phy_ctxt); 4690 4691 mvmvif->deflink.phy_ctxt = phy_ctxt; 4692 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4693 return 0; 4694 } 4695 } 4696 4697 /* We already have a phy_ctxt, but it's not on the right channel */ 4698 if (mvmvif->deflink.phy_ctxt) 4699 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4700 4701 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4702 if (!mvmvif->deflink.phy_ctxt) 4703 return -ENOSPC; 4704 4705 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4706 4707 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4708 &chandef, 1, 1); 4709 } 4710 4711 /* Execute the common part for MLD and non-MLD modes */ 4712 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4713 struct ieee80211_channel *channel, int duration, 4714 enum ieee80211_roc_type type, 4715 const struct iwl_mvm_roc_ops *ops) 4716 { 4717 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4718 u32 lmac_id; 4719 int ret; 4720 4721 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4722 duration, type); 4723 4724 /* 4725 * Flush the done work, just in case it's still pending, so that 4726 * the work it does can complete and we can accept new frames. 4727 */ 4728 flush_work(&mvm->roc_done_wk); 4729 4730 mutex_lock(&mvm->mutex); 4731 4732 switch (vif->type) { 4733 case NL80211_IFTYPE_STATION: 4734 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4735 4736 /* Use aux roc framework (HS20) */ 4737 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4738 if (!ret) 4739 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4740 goto out_unlock; 4741 case NL80211_IFTYPE_P2P_DEVICE: 4742 /* handle below */ 4743 break; 4744 default: 4745 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4746 ret = -EINVAL; 4747 goto out_unlock; 4748 } 4749 4750 4751 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4752 if (ret) 4753 goto out_unlock; 4754 4755 ret = ops->link(mvm, vif); 4756 if (ret) 4757 goto out_unlock; 4758 4759 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4760 out_unlock: 4761 mutex_unlock(&mvm->mutex); 4762 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4763 return ret; 4764 } 4765 4766 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4767 struct ieee80211_vif *vif) 4768 { 4769 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4770 4771 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4772 4773 mutex_lock(&mvm->mutex); 4774 iwl_mvm_stop_roc(mvm, vif); 4775 mutex_unlock(&mvm->mutex); 4776 4777 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4778 return 0; 4779 } 4780 4781 struct iwl_mvm_ftm_responder_iter_data { 4782 bool responder; 4783 struct ieee80211_chanctx_conf *ctx; 4784 }; 4785 4786 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4787 struct ieee80211_vif *vif) 4788 { 4789 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4790 4791 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4792 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4793 data->responder = true; 4794 } 4795 4796 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4797 struct ieee80211_chanctx_conf *ctx) 4798 { 4799 struct iwl_mvm_ftm_responder_iter_data data = { 4800 .responder = false, 4801 .ctx = ctx, 4802 }; 4803 4804 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4805 IEEE80211_IFACE_ITER_NORMAL, 4806 iwl_mvm_ftm_responder_chanctx_iter, 4807 &data); 4808 return data.responder; 4809 } 4810 4811 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4812 struct ieee80211_chanctx_conf *ctx) 4813 { 4814 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4815 struct iwl_mvm_phy_ctxt *phy_ctxt; 4816 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4817 iwl_mvm_enable_fils(mvm, ctx); 4818 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4819 int ret; 4820 4821 lockdep_assert_held(&mvm->mutex); 4822 4823 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4824 4825 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4826 if (!phy_ctxt) { 4827 ret = -ENOSPC; 4828 goto out; 4829 } 4830 4831 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, 4832 ctx->rx_chains_static, 4833 ctx->rx_chains_dynamic); 4834 if (ret) { 4835 IWL_ERR(mvm, "Failed to add PHY context\n"); 4836 goto out; 4837 } 4838 4839 *phy_ctxt_id = phy_ctxt->id; 4840 out: 4841 return ret; 4842 } 4843 4844 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4845 struct ieee80211_chanctx_conf *ctx) 4846 { 4847 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4848 int ret; 4849 4850 mutex_lock(&mvm->mutex); 4851 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4852 mutex_unlock(&mvm->mutex); 4853 4854 return ret; 4855 } 4856 4857 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4858 struct ieee80211_chanctx_conf *ctx) 4859 { 4860 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4861 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4862 4863 lockdep_assert_held(&mvm->mutex); 4864 4865 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4866 } 4867 4868 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4869 struct ieee80211_chanctx_conf *ctx) 4870 { 4871 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4872 4873 mutex_lock(&mvm->mutex); 4874 __iwl_mvm_remove_chanctx(mvm, ctx); 4875 mutex_unlock(&mvm->mutex); 4876 } 4877 4878 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4879 struct ieee80211_chanctx_conf *ctx, u32 changed) 4880 { 4881 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4882 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4883 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4884 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4885 iwl_mvm_enable_fils(mvm, ctx); 4886 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4887 4888 if (WARN_ONCE((phy_ctxt->ref > 1) && 4889 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4890 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4891 IEEE80211_CHANCTX_CHANGE_RADAR | 4892 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4893 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4894 phy_ctxt->ref, changed)) 4895 return; 4896 4897 mutex_lock(&mvm->mutex); 4898 4899 /* we are only changing the min_width, may be a noop */ 4900 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4901 if (phy_ctxt->width == def->width) 4902 goto out_unlock; 4903 4904 /* we are just toggling between 20_NOHT and 20 */ 4905 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4906 def->width <= NL80211_CHAN_WIDTH_20) 4907 goto out_unlock; 4908 } 4909 4910 iwl_mvm_bt_coex_vif_change(mvm); 4911 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4912 ctx->rx_chains_static, 4913 ctx->rx_chains_dynamic); 4914 4915 out_unlock: 4916 mutex_unlock(&mvm->mutex); 4917 } 4918 4919 /* 4920 * This function executes the common part for MLD and non-MLD modes. 4921 * 4922 * Returns true if we're done assigning the chanctx 4923 * (either on failure or success) 4924 */ 4925 static bool 4926 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4927 struct ieee80211_vif *vif, 4928 struct ieee80211_chanctx_conf *ctx, 4929 bool switching_chanctx, int *ret) 4930 { 4931 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4932 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4933 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4934 4935 lockdep_assert_held(&mvm->mutex); 4936 4937 mvmvif->deflink.phy_ctxt = phy_ctxt; 4938 4939 switch (vif->type) { 4940 case NL80211_IFTYPE_AP: 4941 /* only needed if we're switching chanctx (i.e. during CSA) */ 4942 if (switching_chanctx) { 4943 mvmvif->ap_ibss_active = true; 4944 break; 4945 } 4946 fallthrough; 4947 case NL80211_IFTYPE_ADHOC: 4948 /* 4949 * The AP binding flow is handled as part of the start_ap flow 4950 * (in bss_info_changed), similarly for IBSS. 4951 */ 4952 *ret = 0; 4953 return true; 4954 case NL80211_IFTYPE_STATION: 4955 break; 4956 case NL80211_IFTYPE_MONITOR: 4957 /* always disable PS when a monitor interface is active */ 4958 mvmvif->ps_disabled = true; 4959 break; 4960 default: 4961 *ret = -EINVAL; 4962 return true; 4963 } 4964 return false; 4965 } 4966 4967 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4968 struct ieee80211_vif *vif, 4969 struct ieee80211_bss_conf *link_conf, 4970 struct ieee80211_chanctx_conf *ctx, 4971 bool switching_chanctx) 4972 { 4973 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4974 int ret; 4975 4976 if (WARN_ON(!link_conf)) 4977 return -EINVAL; 4978 4979 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4980 switching_chanctx, &ret)) 4981 goto out; 4982 4983 ret = iwl_mvm_binding_add_vif(mvm, vif); 4984 if (ret) 4985 goto out; 4986 4987 /* 4988 * Power state must be updated before quotas, 4989 * otherwise fw will complain. 4990 */ 4991 iwl_mvm_power_update_mac(mvm); 4992 4993 /* Setting the quota at this stage is only required for monitor 4994 * interfaces. For the other types, the bss_info changed flow 4995 * will handle quota settings. 4996 */ 4997 if (vif->type == NL80211_IFTYPE_MONITOR) { 4998 mvmvif->monitor_active = true; 4999 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5000 if (ret) 5001 goto out_remove_binding; 5002 5003 ret = iwl_mvm_add_snif_sta(mvm, vif); 5004 if (ret) 5005 goto out_remove_binding; 5006 5007 } 5008 5009 /* Handle binding during CSA */ 5010 if (vif->type == NL80211_IFTYPE_AP) { 5011 iwl_mvm_update_quotas(mvm, false, NULL); 5012 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5013 } 5014 5015 if (vif->type == NL80211_IFTYPE_STATION) { 5016 if (!switching_chanctx) { 5017 mvmvif->csa_bcn_pending = false; 5018 goto out; 5019 } 5020 5021 mvmvif->csa_bcn_pending = true; 5022 5023 if (!fw_has_capa(&mvm->fw->ucode_capa, 5024 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5025 u32 duration = 5 * vif->bss_conf.beacon_int; 5026 5027 /* Protect the session to make sure we hear the first 5028 * beacon on the new channel. 5029 */ 5030 iwl_mvm_protect_session(mvm, vif, duration, duration, 5031 vif->bss_conf.beacon_int / 2, 5032 true); 5033 } 5034 5035 iwl_mvm_update_quotas(mvm, false, NULL); 5036 } 5037 5038 goto out; 5039 5040 out_remove_binding: 5041 iwl_mvm_binding_remove_vif(mvm, vif); 5042 iwl_mvm_power_update_mac(mvm); 5043 out: 5044 if (ret) 5045 mvmvif->deflink.phy_ctxt = NULL; 5046 return ret; 5047 } 5048 5049 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5050 struct ieee80211_vif *vif, 5051 struct ieee80211_bss_conf *link_conf, 5052 struct ieee80211_chanctx_conf *ctx) 5053 { 5054 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5055 int ret; 5056 5057 mutex_lock(&mvm->mutex); 5058 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5059 mutex_unlock(&mvm->mutex); 5060 5061 return ret; 5062 } 5063 5064 /* 5065 * This function executes the common part for MLD and non-MLD modes. 5066 * 5067 * Returns if chanctx unassign chanctx is done 5068 * (either on failure or success) 5069 */ 5070 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5071 struct ieee80211_vif *vif, 5072 bool switching_chanctx) 5073 { 5074 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5075 5076 lockdep_assert_held(&mvm->mutex); 5077 iwl_mvm_remove_time_event(mvm, mvmvif, 5078 &mvmvif->time_event_data); 5079 5080 switch (vif->type) { 5081 case NL80211_IFTYPE_ADHOC: 5082 return true; 5083 case NL80211_IFTYPE_MONITOR: 5084 mvmvif->monitor_active = false; 5085 mvmvif->ps_disabled = false; 5086 break; 5087 case NL80211_IFTYPE_AP: 5088 /* This part is triggered only during CSA */ 5089 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5090 return true; 5091 5092 mvmvif->csa_countdown = false; 5093 5094 /* Set CS bit on all the stations */ 5095 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5096 5097 /* Save blocked iface, the timeout is set on the next beacon */ 5098 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5099 5100 mvmvif->ap_ibss_active = false; 5101 break; 5102 default: 5103 break; 5104 } 5105 return false; 5106 } 5107 5108 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5109 struct ieee80211_vif *vif, 5110 struct ieee80211_bss_conf *link_conf, 5111 struct ieee80211_chanctx_conf *ctx, 5112 bool switching_chanctx) 5113 { 5114 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5115 struct ieee80211_vif *disabled_vif = NULL; 5116 5117 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5118 goto out; 5119 5120 if (vif->type == NL80211_IFTYPE_MONITOR) 5121 iwl_mvm_rm_snif_sta(mvm, vif); 5122 5123 5124 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5125 disabled_vif = vif; 5126 if (!fw_has_capa(&mvm->fw->ucode_capa, 5127 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5128 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5129 } 5130 5131 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5132 iwl_mvm_binding_remove_vif(mvm, vif); 5133 5134 out: 5135 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5136 switching_chanctx) 5137 return; 5138 mvmvif->deflink.phy_ctxt = NULL; 5139 iwl_mvm_power_update_mac(mvm); 5140 } 5141 5142 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5143 struct ieee80211_vif *vif, 5144 struct ieee80211_bss_conf *link_conf, 5145 struct ieee80211_chanctx_conf *ctx) 5146 { 5147 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5148 5149 mutex_lock(&mvm->mutex); 5150 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5151 mutex_unlock(&mvm->mutex); 5152 } 5153 5154 static int 5155 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5156 struct ieee80211_vif_chanctx_switch *vifs, 5157 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5158 { 5159 int ret; 5160 5161 mutex_lock(&mvm->mutex); 5162 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5163 vifs[0].old_ctx, true); 5164 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5165 5166 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5167 if (ret) { 5168 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5169 goto out_reassign; 5170 } 5171 5172 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5173 vifs[0].new_ctx, true); 5174 if (ret) { 5175 IWL_ERR(mvm, 5176 "failed to assign new_ctx during channel switch\n"); 5177 goto out_remove; 5178 } 5179 5180 /* we don't support TDLS during DCM - can be caused by channel switch */ 5181 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5182 iwl_mvm_teardown_tdls_peers(mvm); 5183 5184 goto out; 5185 5186 out_remove: 5187 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5188 5189 out_reassign: 5190 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5191 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5192 goto out_restart; 5193 } 5194 5195 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5196 vifs[0].old_ctx, true)) { 5197 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5198 goto out_restart; 5199 } 5200 5201 goto out; 5202 5203 out_restart: 5204 /* things keep failing, better restart the hw */ 5205 iwl_mvm_nic_restart(mvm, false); 5206 5207 out: 5208 mutex_unlock(&mvm->mutex); 5209 5210 return ret; 5211 } 5212 5213 static int 5214 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5215 struct ieee80211_vif_chanctx_switch *vifs, 5216 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5217 { 5218 int ret; 5219 5220 mutex_lock(&mvm->mutex); 5221 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5222 vifs[0].old_ctx, true); 5223 5224 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5225 vifs[0].new_ctx, true); 5226 if (ret) { 5227 IWL_ERR(mvm, 5228 "failed to assign new_ctx during channel switch\n"); 5229 goto out_reassign; 5230 } 5231 5232 goto out; 5233 5234 out_reassign: 5235 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5236 vifs[0].old_ctx, true)) { 5237 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5238 goto out_restart; 5239 } 5240 5241 goto out; 5242 5243 out_restart: 5244 /* things keep failing, better restart the hw */ 5245 iwl_mvm_nic_restart(mvm, false); 5246 5247 out: 5248 mutex_unlock(&mvm->mutex); 5249 5250 return ret; 5251 } 5252 5253 /* Execute the common part for both MLD and non-MLD modes */ 5254 int 5255 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5256 struct ieee80211_vif_chanctx_switch *vifs, 5257 int n_vifs, 5258 enum ieee80211_chanctx_switch_mode mode, 5259 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5260 { 5261 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5262 int ret; 5263 5264 /* we only support a single-vif right now */ 5265 if (n_vifs > 1) 5266 return -EOPNOTSUPP; 5267 5268 switch (mode) { 5269 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5270 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5271 break; 5272 case CHANCTX_SWMODE_REASSIGN_VIF: 5273 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5274 break; 5275 default: 5276 ret = -EOPNOTSUPP; 5277 break; 5278 } 5279 5280 return ret; 5281 } 5282 5283 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5284 struct ieee80211_vif_chanctx_switch *vifs, 5285 int n_vifs, 5286 enum ieee80211_chanctx_switch_mode mode) 5287 { 5288 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5289 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5290 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5291 }; 5292 5293 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5294 } 5295 5296 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5297 { 5298 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5299 5300 return mvm->ibss_manager; 5301 } 5302 5303 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5304 bool set) 5305 { 5306 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5307 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5308 5309 if (!mvm_sta || !mvm_sta->vif) { 5310 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5311 return -EINVAL; 5312 } 5313 5314 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5315 &mvm_sta->vif->bss_conf); 5316 } 5317 5318 #ifdef CONFIG_NL80211_TESTMODE 5319 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5320 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5321 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5322 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5323 }; 5324 5325 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5326 struct ieee80211_vif *vif, 5327 void *data, int len) 5328 { 5329 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5330 int err; 5331 u32 noa_duration; 5332 5333 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5334 iwl_mvm_tm_policy, NULL); 5335 if (err) 5336 return err; 5337 5338 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5339 return -EINVAL; 5340 5341 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5342 case IWL_MVM_TM_CMD_SET_NOA: 5343 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5344 !vif->bss_conf.enable_beacon || 5345 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5346 return -EINVAL; 5347 5348 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5349 if (noa_duration >= vif->bss_conf.beacon_int) 5350 return -EINVAL; 5351 5352 mvm->noa_duration = noa_duration; 5353 mvm->noa_vif = vif; 5354 5355 return iwl_mvm_update_quotas(mvm, true, NULL); 5356 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5357 /* must be associated client vif - ignore authorized */ 5358 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5359 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5360 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5361 return -EINVAL; 5362 5363 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5364 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5365 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5366 } 5367 5368 return -EOPNOTSUPP; 5369 } 5370 5371 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5372 struct ieee80211_vif *vif, 5373 void *data, int len) 5374 { 5375 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5376 int err; 5377 5378 mutex_lock(&mvm->mutex); 5379 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5380 mutex_unlock(&mvm->mutex); 5381 5382 return err; 5383 } 5384 #endif 5385 5386 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5387 struct ieee80211_channel_switch *chsw) 5388 { 5389 /* By implementing this operation, we prevent mac80211 from 5390 * starting its own channel switch timer, so that we can call 5391 * ieee80211_chswitch_done() ourselves at the right time 5392 * (which is when the absence time event starts). 5393 */ 5394 5395 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5396 "dummy channel switch op\n"); 5397 } 5398 5399 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5400 struct ieee80211_vif *vif, 5401 struct ieee80211_channel_switch *chsw) 5402 { 5403 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5404 struct iwl_chan_switch_te_cmd cmd = { 5405 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5406 mvmvif->color)), 5407 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5408 .tsf = cpu_to_le32(chsw->timestamp), 5409 .cs_count = chsw->count, 5410 .cs_mode = chsw->block_tx, 5411 }; 5412 5413 lockdep_assert_held(&mvm->mutex); 5414 5415 if (chsw->delay) 5416 cmd.cs_delayed_bcn_count = 5417 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5418 5419 return iwl_mvm_send_cmd_pdu(mvm, 5420 WIDE_ID(MAC_CONF_GROUP, 5421 CHANNEL_SWITCH_TIME_EVENT_CMD), 5422 0, sizeof(cmd), &cmd); 5423 } 5424 5425 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5426 struct ieee80211_vif *vif, 5427 struct ieee80211_channel_switch *chsw) 5428 { 5429 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5430 u32 apply_time; 5431 5432 /* Schedule the time event to a bit before beacon 1, 5433 * to make sure we're in the new channel when the 5434 * GO/AP arrives. In case count <= 1 immediately schedule the 5435 * TE (this might result with some packet loss or connection 5436 * loss). 5437 */ 5438 if (chsw->count <= 1) 5439 apply_time = 0; 5440 else 5441 apply_time = chsw->device_timestamp + 5442 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5443 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5444 5445 if (chsw->block_tx) 5446 iwl_mvm_csa_client_absent(mvm, vif); 5447 5448 if (mvmvif->bf_data.bf_enabled) { 5449 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5450 5451 if (ret) 5452 return ret; 5453 } 5454 5455 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5456 apply_time); 5457 5458 return 0; 5459 } 5460 5461 #define IWL_MAX_CSA_BLOCK_TX 1500 5462 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5463 struct ieee80211_vif *vif, 5464 struct ieee80211_channel_switch *chsw) 5465 { 5466 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5467 struct ieee80211_vif *csa_vif; 5468 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5469 int ret; 5470 5471 mutex_lock(&mvm->mutex); 5472 5473 mvmvif->csa_failed = false; 5474 5475 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5476 chsw->chandef.center_freq1); 5477 5478 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5479 ieee80211_vif_to_wdev(vif), 5480 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5481 5482 switch (vif->type) { 5483 case NL80211_IFTYPE_AP: 5484 csa_vif = 5485 rcu_dereference_protected(mvm->csa_vif, 5486 lockdep_is_held(&mvm->mutex)); 5487 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5488 "Another CSA is already in progress")) { 5489 ret = -EBUSY; 5490 goto out_unlock; 5491 } 5492 5493 /* we still didn't unblock tx. prevent new CS meanwhile */ 5494 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5495 lockdep_is_held(&mvm->mutex))) { 5496 ret = -EBUSY; 5497 goto out_unlock; 5498 } 5499 5500 rcu_assign_pointer(mvm->csa_vif, vif); 5501 5502 if (WARN_ONCE(mvmvif->csa_countdown, 5503 "Previous CSA countdown didn't complete")) { 5504 ret = -EBUSY; 5505 goto out_unlock; 5506 } 5507 5508 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5509 5510 break; 5511 case NL80211_IFTYPE_STATION: 5512 /* 5513 * In the new flow FW is in charge of timing the switch so there 5514 * is no need for all of this 5515 */ 5516 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5517 CHANNEL_SWITCH_ERROR_NOTIF, 5518 0)) 5519 break; 5520 5521 /* 5522 * We haven't configured the firmware to be associated yet since 5523 * we don't know the dtim period. In this case, the firmware can't 5524 * track the beacons. 5525 */ 5526 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5527 ret = -EBUSY; 5528 goto out_unlock; 5529 } 5530 5531 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5532 hweight16(vif->valid_links) <= 1) 5533 schedule_delayed_work(&mvmvif->csa_work, 0); 5534 5535 if (chsw->block_tx) { 5536 /* 5537 * In case of undetermined / long time with immediate 5538 * quiet monitor status to gracefully disconnect 5539 */ 5540 if (!chsw->count || 5541 chsw->count * vif->bss_conf.beacon_int > 5542 IWL_MAX_CSA_BLOCK_TX) 5543 schedule_delayed_work(&mvmvif->csa_work, 5544 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5545 } 5546 5547 if (!fw_has_capa(&mvm->fw->ucode_capa, 5548 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5549 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5550 if (ret) 5551 goto out_unlock; 5552 } else { 5553 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5554 } 5555 5556 mvmvif->csa_count = chsw->count; 5557 mvmvif->csa_misbehave = false; 5558 break; 5559 default: 5560 break; 5561 } 5562 5563 mvmvif->ps_disabled = true; 5564 5565 ret = iwl_mvm_power_update_ps(mvm); 5566 if (ret) 5567 goto out_unlock; 5568 5569 /* we won't be on this channel any longer */ 5570 iwl_mvm_teardown_tdls_peers(mvm); 5571 5572 out_unlock: 5573 mutex_unlock(&mvm->mutex); 5574 5575 return ret; 5576 } 5577 5578 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5579 struct ieee80211_vif *vif, 5580 struct ieee80211_channel_switch *chsw) 5581 { 5582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5583 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5584 struct iwl_chan_switch_te_cmd cmd = { 5585 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5586 mvmvif->color)), 5587 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5588 .tsf = cpu_to_le32(chsw->timestamp), 5589 .cs_count = chsw->count, 5590 .cs_mode = chsw->block_tx, 5591 }; 5592 5593 /* 5594 * In the new flow FW is in charge of timing the switch so there is no 5595 * need for all of this 5596 */ 5597 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5598 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5599 return; 5600 5601 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5602 return; 5603 5604 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5605 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5606 5607 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5608 if (mvmvif->csa_misbehave) { 5609 /* Second time, give up on this AP*/ 5610 iwl_mvm_abort_channel_switch(hw, vif); 5611 ieee80211_chswitch_done(vif, false, 0); 5612 mvmvif->csa_misbehave = false; 5613 return; 5614 } 5615 mvmvif->csa_misbehave = true; 5616 } 5617 mvmvif->csa_count = chsw->count; 5618 5619 mutex_lock(&mvm->mutex); 5620 if (mvmvif->csa_failed) 5621 goto out_unlock; 5622 5623 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5624 WIDE_ID(MAC_CONF_GROUP, 5625 CHANNEL_SWITCH_TIME_EVENT_CMD), 5626 0, sizeof(cmd), &cmd)); 5627 out_unlock: 5628 mutex_unlock(&mvm->mutex); 5629 } 5630 5631 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5632 { 5633 int i; 5634 5635 if (!iwl_mvm_has_new_tx_api(mvm)) { 5636 if (drop) { 5637 mutex_lock(&mvm->mutex); 5638 iwl_mvm_flush_tx_path(mvm, 5639 iwl_mvm_flushable_queues(mvm) & queues); 5640 mutex_unlock(&mvm->mutex); 5641 } else { 5642 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5643 } 5644 return; 5645 } 5646 5647 mutex_lock(&mvm->mutex); 5648 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5649 struct ieee80211_sta *sta; 5650 5651 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5652 lockdep_is_held(&mvm->mutex)); 5653 if (IS_ERR_OR_NULL(sta)) 5654 continue; 5655 5656 if (drop) 5657 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5658 else 5659 iwl_mvm_wait_sta_queues_empty(mvm, 5660 iwl_mvm_sta_from_mac80211(sta)); 5661 } 5662 mutex_unlock(&mvm->mutex); 5663 } 5664 5665 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5666 u32 queues, bool drop) 5667 { 5668 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5669 struct iwl_mvm_vif *mvmvif; 5670 struct iwl_mvm_sta *mvmsta; 5671 struct ieee80211_sta *sta; 5672 bool ap_sta_done = false; 5673 int i; 5674 u32 msk = 0; 5675 5676 if (!vif) { 5677 iwl_mvm_flush_no_vif(mvm, queues, drop); 5678 return; 5679 } 5680 5681 /* Make sure we're done with the deferred traffic before flushing */ 5682 flush_work(&mvm->add_stream_wk); 5683 5684 mutex_lock(&mvm->mutex); 5685 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5686 5687 /* flush the AP-station and all TDLS peers */ 5688 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5689 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5690 lockdep_is_held(&mvm->mutex)); 5691 if (IS_ERR_OR_NULL(sta)) 5692 continue; 5693 5694 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5695 if (mvmsta->vif != vif) 5696 continue; 5697 5698 if (sta == mvmvif->ap_sta) { 5699 if (ap_sta_done) 5700 continue; 5701 ap_sta_done = true; 5702 } 5703 5704 if (drop) { 5705 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5706 mvmsta->tfd_queue_msk)) 5707 IWL_ERR(mvm, "flush request fail\n"); 5708 } else { 5709 if (iwl_mvm_has_new_tx_api(mvm)) 5710 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5711 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5712 msk |= mvmsta->tfd_queue_msk; 5713 } 5714 } 5715 5716 mutex_unlock(&mvm->mutex); 5717 5718 /* this can take a while, and we may need/want other operations 5719 * to succeed while doing this, so do it without the mutex held 5720 */ 5721 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5722 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5723 } 5724 5725 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5726 struct ieee80211_sta *sta) 5727 { 5728 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5729 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5730 struct iwl_mvm_link_sta *mvm_link_sta; 5731 struct ieee80211_link_sta *link_sta; 5732 int link_id; 5733 5734 mutex_lock(&mvm->mutex); 5735 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5736 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5737 lockdep_is_held(&mvm->mutex)); 5738 if (!mvm_link_sta) 5739 continue; 5740 5741 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5742 mvmsta->tfd_queue_msk)) 5743 IWL_ERR(mvm, "flush request fail\n"); 5744 } 5745 mutex_unlock(&mvm->mutex); 5746 } 5747 5748 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5749 struct survey_info *survey) 5750 { 5751 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5752 int ret = 0; 5753 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5754 WIDE_ID(SYSTEM_GROUP, 5755 SYSTEM_STATISTICS_CMD), 5756 IWL_FW_CMD_VER_UNKNOWN); 5757 5758 memset(survey, 0, sizeof(*survey)); 5759 5760 /* only support global statistics right now */ 5761 if (idx != 0) 5762 return -ENOENT; 5763 5764 if (!fw_has_capa(&mvm->fw->ucode_capa, 5765 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5766 return -ENOENT; 5767 5768 mutex_lock(&mvm->mutex); 5769 5770 if (iwl_mvm_firmware_running(mvm)) { 5771 ret = iwl_mvm_request_statistics(mvm, false); 5772 if (ret) 5773 goto out; 5774 } 5775 5776 survey->filled = SURVEY_INFO_TIME_RX | 5777 SURVEY_INFO_TIME_TX; 5778 5779 survey->time_rx = mvm->accu_radio_stats.rx_time + 5780 mvm->radio_stats.rx_time; 5781 do_div(survey->time_rx, USEC_PER_MSEC); 5782 5783 survey->time_tx = mvm->accu_radio_stats.tx_time + 5784 mvm->radio_stats.tx_time; 5785 do_div(survey->time_tx, USEC_PER_MSEC); 5786 5787 /* the new fw api doesn't support the following fields */ 5788 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 5789 goto out; 5790 5791 survey->filled |= SURVEY_INFO_TIME | 5792 SURVEY_INFO_TIME_SCAN; 5793 survey->time = mvm->accu_radio_stats.on_time_rf + 5794 mvm->radio_stats.on_time_rf; 5795 do_div(survey->time, USEC_PER_MSEC); 5796 5797 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5798 mvm->radio_stats.on_time_scan; 5799 do_div(survey->time_scan, USEC_PER_MSEC); 5800 5801 out: 5802 mutex_unlock(&mvm->mutex); 5803 return ret; 5804 } 5805 5806 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5807 { 5808 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5809 u32 gi_ltf; 5810 5811 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5812 case RATE_MCS_CHAN_WIDTH_20: 5813 rinfo->bw = RATE_INFO_BW_20; 5814 break; 5815 case RATE_MCS_CHAN_WIDTH_40: 5816 rinfo->bw = RATE_INFO_BW_40; 5817 break; 5818 case RATE_MCS_CHAN_WIDTH_80: 5819 rinfo->bw = RATE_INFO_BW_80; 5820 break; 5821 case RATE_MCS_CHAN_WIDTH_160: 5822 rinfo->bw = RATE_INFO_BW_160; 5823 break; 5824 case RATE_MCS_CHAN_WIDTH_320: 5825 rinfo->bw = RATE_INFO_BW_320; 5826 break; 5827 } 5828 5829 if (format == RATE_MCS_CCK_MSK || 5830 format == RATE_MCS_LEGACY_OFDM_MSK) { 5831 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5832 5833 /* add the offset needed to get to the legacy ofdm indices */ 5834 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5835 rate += IWL_FIRST_OFDM_RATE; 5836 5837 switch (rate) { 5838 case IWL_RATE_1M_INDEX: 5839 rinfo->legacy = 10; 5840 break; 5841 case IWL_RATE_2M_INDEX: 5842 rinfo->legacy = 20; 5843 break; 5844 case IWL_RATE_5M_INDEX: 5845 rinfo->legacy = 55; 5846 break; 5847 case IWL_RATE_11M_INDEX: 5848 rinfo->legacy = 110; 5849 break; 5850 case IWL_RATE_6M_INDEX: 5851 rinfo->legacy = 60; 5852 break; 5853 case IWL_RATE_9M_INDEX: 5854 rinfo->legacy = 90; 5855 break; 5856 case IWL_RATE_12M_INDEX: 5857 rinfo->legacy = 120; 5858 break; 5859 case IWL_RATE_18M_INDEX: 5860 rinfo->legacy = 180; 5861 break; 5862 case IWL_RATE_24M_INDEX: 5863 rinfo->legacy = 240; 5864 break; 5865 case IWL_RATE_36M_INDEX: 5866 rinfo->legacy = 360; 5867 break; 5868 case IWL_RATE_48M_INDEX: 5869 rinfo->legacy = 480; 5870 break; 5871 case IWL_RATE_54M_INDEX: 5872 rinfo->legacy = 540; 5873 } 5874 return; 5875 } 5876 5877 rinfo->nss = u32_get_bits(rate_n_flags, 5878 RATE_MCS_NSS_MSK) + 1; 5879 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5880 RATE_HT_MCS_INDEX(rate_n_flags) : 5881 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5882 5883 if (rate_n_flags & RATE_MCS_SGI_MSK) 5884 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5885 5886 switch (format) { 5887 case RATE_MCS_EHT_MSK: 5888 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5889 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5890 break; 5891 case RATE_MCS_HE_MSK: 5892 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5893 5894 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5895 5896 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5897 rinfo->bw = RATE_INFO_BW_HE_RU; 5898 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5899 } 5900 5901 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5902 case RATE_MCS_HE_TYPE_SU: 5903 case RATE_MCS_HE_TYPE_EXT_SU: 5904 if (gi_ltf == 0 || gi_ltf == 1) 5905 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5906 else if (gi_ltf == 2) 5907 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5908 else if (gi_ltf == 3) 5909 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5910 else 5911 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5912 break; 5913 case RATE_MCS_HE_TYPE_MU: 5914 if (gi_ltf == 0 || gi_ltf == 1) 5915 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5916 else if (gi_ltf == 2) 5917 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5918 else 5919 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5920 break; 5921 case RATE_MCS_HE_TYPE_TRIG: 5922 if (gi_ltf == 0 || gi_ltf == 1) 5923 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5924 else 5925 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5926 break; 5927 } 5928 5929 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5930 rinfo->he_dcm = 1; 5931 break; 5932 case RATE_MCS_HT_MSK: 5933 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5934 break; 5935 case RATE_MCS_VHT_MSK: 5936 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5937 break; 5938 } 5939 } 5940 5941 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5942 struct ieee80211_vif *vif, 5943 struct ieee80211_sta *sta, 5944 struct station_info *sinfo) 5945 { 5946 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5947 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5948 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5949 int i; 5950 5951 if (mvmsta->deflink.avg_energy) { 5952 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5953 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5954 } 5955 5956 if (iwl_mvm_has_tlc_offload(mvm)) { 5957 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5958 5959 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5960 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5961 } 5962 5963 /* if beacon filtering isn't on mac80211 does it anyway */ 5964 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5965 return; 5966 5967 if (!vif->cfg.assoc) 5968 return; 5969 5970 mutex_lock(&mvm->mutex); 5971 5972 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5973 goto unlock; 5974 5975 if (iwl_mvm_request_statistics(mvm, false)) 5976 goto unlock; 5977 5978 sinfo->rx_beacon = 0; 5979 for_each_mvm_vif_valid_link(mvmvif, i) 5980 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 5981 mvmvif->link[i]->beacon_stats.accu_num_beacons; 5982 5983 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5984 if (mvmvif->deflink.beacon_stats.avg_signal) { 5985 /* firmware only reports a value after RXing a few beacons */ 5986 sinfo->rx_beacon_signal_avg = 5987 mvmvif->deflink.beacon_stats.avg_signal; 5988 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5989 } 5990 unlock: 5991 mutex_unlock(&mvm->mutex); 5992 } 5993 5994 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5995 struct ieee80211_vif *vif, 5996 const struct ieee80211_mlme_event *mlme) 5997 { 5998 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5999 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6000 iwl_dbg_tlv_time_point(&mvm->fwrt, 6001 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6002 NULL); 6003 return; 6004 } 6005 6006 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6007 iwl_dbg_tlv_time_point(&mvm->fwrt, 6008 IWL_FW_INI_TIME_POINT_DEASSOC, 6009 NULL); 6010 return; 6011 } 6012 } 6013 6014 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6015 struct ieee80211_vif *vif, 6016 const struct ieee80211_event *event) 6017 { 6018 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6019 do { \ 6020 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6021 break; \ 6022 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6023 } while (0) 6024 6025 struct iwl_fw_dbg_trigger_tlv *trig; 6026 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6027 6028 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6029 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6030 return; 6031 } 6032 6033 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6034 FW_DBG_TRIGGER_MLME); 6035 if (!trig) 6036 return; 6037 6038 trig_mlme = (void *)trig->data; 6039 6040 if (event->u.mlme.data == ASSOC_EVENT) { 6041 if (event->u.mlme.status == MLME_DENIED) 6042 CHECK_MLME_TRIGGER(stop_assoc_denied, 6043 "DENIED ASSOC: reason %d", 6044 event->u.mlme.reason); 6045 else if (event->u.mlme.status == MLME_TIMEOUT) 6046 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6047 "ASSOC TIMEOUT"); 6048 } else if (event->u.mlme.data == AUTH_EVENT) { 6049 if (event->u.mlme.status == MLME_DENIED) 6050 CHECK_MLME_TRIGGER(stop_auth_denied, 6051 "DENIED AUTH: reason %d", 6052 event->u.mlme.reason); 6053 else if (event->u.mlme.status == MLME_TIMEOUT) 6054 CHECK_MLME_TRIGGER(stop_auth_timeout, 6055 "AUTH TIMEOUT"); 6056 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6057 CHECK_MLME_TRIGGER(stop_rx_deauth, 6058 "DEAUTH RX %d", event->u.mlme.reason); 6059 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6060 CHECK_MLME_TRIGGER(stop_tx_deauth, 6061 "DEAUTH TX %d", event->u.mlme.reason); 6062 } 6063 #undef CHECK_MLME_TRIGGER 6064 } 6065 6066 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6067 struct ieee80211_vif *vif, 6068 const struct ieee80211_event *event) 6069 { 6070 struct iwl_fw_dbg_trigger_tlv *trig; 6071 struct iwl_fw_dbg_trigger_ba *ba_trig; 6072 6073 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6074 FW_DBG_TRIGGER_BA); 6075 if (!trig) 6076 return; 6077 6078 ba_trig = (void *)trig->data; 6079 6080 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6081 return; 6082 6083 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6084 "BAR received from %pM, tid %d, ssn %d", 6085 event->u.ba.sta->addr, event->u.ba.tid, 6086 event->u.ba.ssn); 6087 } 6088 6089 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6090 struct ieee80211_vif *vif, 6091 const struct ieee80211_event *event) 6092 { 6093 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6094 6095 switch (event->type) { 6096 case MLME_EVENT: 6097 iwl_mvm_event_mlme_callback(mvm, vif, event); 6098 break; 6099 case BAR_RX_EVENT: 6100 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6101 break; 6102 case BA_FRAME_TIMEOUT: 6103 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6104 event->u.ba.tid); 6105 break; 6106 default: 6107 break; 6108 } 6109 } 6110 6111 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6112 enum iwl_mvm_rxq_notif_type type, 6113 bool sync, 6114 const void *data, u32 size) 6115 { 6116 struct { 6117 struct iwl_rxq_sync_cmd cmd; 6118 struct iwl_mvm_internal_rxq_notif notif; 6119 } __packed cmd = { 6120 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6121 .cmd.count = 6122 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6123 size), 6124 .notif.type = type, 6125 .notif.sync = sync, 6126 }; 6127 struct iwl_host_cmd hcmd = { 6128 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6129 .data[0] = &cmd, 6130 .len[0] = sizeof(cmd), 6131 .data[1] = data, 6132 .len[1] = size, 6133 .flags = sync ? 0 : CMD_ASYNC, 6134 }; 6135 int ret; 6136 6137 /* size must be a multiple of DWORD */ 6138 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6139 return; 6140 6141 if (!iwl_mvm_has_new_rx_api(mvm)) 6142 return; 6143 6144 if (sync) { 6145 cmd.notif.cookie = mvm->queue_sync_cookie; 6146 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6147 } 6148 6149 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6150 if (ret) { 6151 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6152 goto out; 6153 } 6154 6155 if (sync) { 6156 lockdep_assert_held(&mvm->mutex); 6157 ret = wait_event_timeout(mvm->rx_sync_waitq, 6158 READ_ONCE(mvm->queue_sync_state) == 0 || 6159 iwl_mvm_is_radio_killed(mvm), 6160 HZ); 6161 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6162 "queue sync: failed to sync, state is 0x%lx\n", 6163 mvm->queue_sync_state); 6164 } 6165 6166 out: 6167 if (sync) { 6168 mvm->queue_sync_state = 0; 6169 mvm->queue_sync_cookie++; 6170 } 6171 } 6172 6173 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6174 { 6175 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6176 6177 mutex_lock(&mvm->mutex); 6178 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6179 mutex_unlock(&mvm->mutex); 6180 } 6181 6182 int 6183 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6184 struct ieee80211_vif *vif, 6185 struct cfg80211_ftm_responder_stats *stats) 6186 { 6187 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6188 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6189 6190 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6191 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6192 return -EINVAL; 6193 6194 mutex_lock(&mvm->mutex); 6195 *stats = mvm->ftm_resp_stats; 6196 mutex_unlock(&mvm->mutex); 6197 6198 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6199 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6200 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6201 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6202 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6203 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6204 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6205 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6206 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6207 6208 return 0; 6209 } 6210 6211 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6212 struct cfg80211_pmsr_request *request) 6213 { 6214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6215 int ret; 6216 6217 mutex_lock(&mvm->mutex); 6218 ret = iwl_mvm_ftm_start(mvm, vif, request); 6219 mutex_unlock(&mvm->mutex); 6220 6221 return ret; 6222 } 6223 6224 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6225 struct cfg80211_pmsr_request *request) 6226 { 6227 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6228 6229 mutex_lock(&mvm->mutex); 6230 iwl_mvm_ftm_abort(mvm, request); 6231 mutex_unlock(&mvm->mutex); 6232 } 6233 6234 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6235 { 6236 u8 protocol = ip_hdr(skb)->protocol; 6237 6238 if (!IS_ENABLED(CONFIG_INET)) 6239 return false; 6240 6241 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6242 } 6243 6244 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6245 struct sk_buff *head, 6246 struct sk_buff *skb) 6247 { 6248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6249 6250 /* For now don't aggregate IPv6 in AMSDU */ 6251 if (skb->protocol != htons(ETH_P_IP)) 6252 return false; 6253 6254 if (!iwl_mvm_is_csum_supported(mvm)) 6255 return true; 6256 6257 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6258 } 6259 6260 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6261 struct ieee80211_vif *vif, 6262 struct cfg80211_set_hw_timestamp *hwts) 6263 { 6264 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6265 u32 protocols = 0; 6266 int ret; 6267 6268 /* HW timestamping is only supported for a specific station */ 6269 if (!hwts->macaddr) 6270 return -EOPNOTSUPP; 6271 6272 if (hwts->enable) 6273 protocols = 6274 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6275 6276 mutex_lock(&mvm->mutex); 6277 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6278 mutex_unlock(&mvm->mutex); 6279 6280 return ret; 6281 } 6282 6283 const struct ieee80211_ops iwl_mvm_hw_ops = { 6284 .tx = iwl_mvm_mac_tx, 6285 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6286 .ampdu_action = iwl_mvm_mac_ampdu_action, 6287 .get_antenna = iwl_mvm_op_get_antenna, 6288 .set_antenna = iwl_mvm_op_set_antenna, 6289 .start = iwl_mvm_mac_start, 6290 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6291 .stop = iwl_mvm_mac_stop, 6292 .add_interface = iwl_mvm_mac_add_interface, 6293 .remove_interface = iwl_mvm_mac_remove_interface, 6294 .config = iwl_mvm_mac_config, 6295 .prepare_multicast = iwl_mvm_prepare_multicast, 6296 .configure_filter = iwl_mvm_configure_filter, 6297 .config_iface_filter = iwl_mvm_config_iface_filter, 6298 .bss_info_changed = iwl_mvm_bss_info_changed, 6299 .hw_scan = iwl_mvm_mac_hw_scan, 6300 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6301 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6302 .sta_state = iwl_mvm_mac_sta_state, 6303 .sta_notify = iwl_mvm_mac_sta_notify, 6304 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6305 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6306 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6307 .sta_rc_update = iwl_mvm_sta_rc_update, 6308 .conf_tx = iwl_mvm_mac_conf_tx, 6309 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6310 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6311 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6312 .flush = iwl_mvm_mac_flush, 6313 .flush_sta = iwl_mvm_mac_flush_sta, 6314 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6315 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6316 .set_key = iwl_mvm_mac_set_key, 6317 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6318 .remain_on_channel = iwl_mvm_roc, 6319 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6320 .add_chanctx = iwl_mvm_add_chanctx, 6321 .remove_chanctx = iwl_mvm_remove_chanctx, 6322 .change_chanctx = iwl_mvm_change_chanctx, 6323 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6324 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6325 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6326 6327 .start_ap = iwl_mvm_start_ap, 6328 .stop_ap = iwl_mvm_stop_ap, 6329 .join_ibss = iwl_mvm_start_ibss, 6330 .leave_ibss = iwl_mvm_stop_ibss, 6331 6332 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6333 6334 .set_tim = iwl_mvm_set_tim, 6335 6336 .channel_switch = iwl_mvm_channel_switch, 6337 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6338 .post_channel_switch = iwl_mvm_post_channel_switch, 6339 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6340 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6341 6342 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6343 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6344 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6345 6346 .event_callback = iwl_mvm_mac_event_callback, 6347 6348 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6349 6350 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6351 6352 #ifdef CONFIG_PM_SLEEP 6353 /* look at d3.c */ 6354 .suspend = iwl_mvm_suspend, 6355 .resume = iwl_mvm_resume, 6356 .set_wakeup = iwl_mvm_set_wakeup, 6357 .set_rekey_data = iwl_mvm_set_rekey_data, 6358 #if IS_ENABLED(CONFIG_IPV6) 6359 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6360 #endif 6361 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6362 #endif 6363 .get_survey = iwl_mvm_mac_get_survey, 6364 .sta_statistics = iwl_mvm_mac_sta_statistics, 6365 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6366 .start_pmsr = iwl_mvm_start_pmsr, 6367 .abort_pmsr = iwl_mvm_abort_pmsr, 6368 6369 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6370 #ifdef CONFIG_IWLWIFI_DEBUGFS 6371 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6372 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6373 #endif 6374 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6375 }; 6376