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 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1604 ret = 0; 1605 goto out; 1606 } 1607 1608 mvmvif->features |= hw->netdev_features; 1609 1610 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1611 if (ret) 1612 goto out_unlock; 1613 1614 ret = iwl_mvm_power_update_mac(mvm); 1615 if (ret) 1616 goto out_remove_mac; 1617 1618 /* beacon filtering */ 1619 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1620 if (ret) 1621 goto out_remove_mac; 1622 1623 if (!mvm->bf_allowed_vif && 1624 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1625 mvm->bf_allowed_vif = mvmvif; 1626 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1627 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1628 } 1629 1630 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1631 mvm->p2p_device_vif = vif; 1632 1633 iwl_mvm_tcm_add_vif(mvm, vif); 1634 INIT_DELAYED_WORK(&mvmvif->csa_work, 1635 iwl_mvm_channel_switch_disconnect_wk); 1636 1637 if (vif->type == NL80211_IFTYPE_MONITOR) { 1638 mvm->monitor_on = true; 1639 mvm->monitor_p80 = 1640 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1641 } 1642 1643 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1644 1645 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1646 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1647 !mvm->csme_vif && mvm->mei_registered) { 1648 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1649 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1650 mvm->csme_vif = vif; 1651 } 1652 1653 out: 1654 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1655 vif->type == NL80211_IFTYPE_ADHOC)) 1656 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1657 1658 goto out_unlock; 1659 1660 out_remove_mac: 1661 mvmvif->deflink.phy_ctxt = NULL; 1662 iwl_mvm_mac_ctxt_remove(mvm, vif); 1663 out_unlock: 1664 mutex_unlock(&mvm->mutex); 1665 1666 return ret; 1667 } 1668 1669 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1670 struct ieee80211_vif *vif) 1671 { 1672 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1673 /* 1674 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1675 * We assume here that all the packets sent to the OFFCHANNEL 1676 * queue are sent in ROC session. 1677 */ 1678 flush_work(&mvm->roc_done_wk); 1679 } 1680 } 1681 1682 /* This function is doing the common part of removing the interface for 1683 * both - MLD and non-MLD modes. Returns true if removing the interface 1684 * is done 1685 */ 1686 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1687 struct ieee80211_vif *vif) 1688 { 1689 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1690 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1691 struct iwl_probe_resp_data *probe_data; 1692 1693 iwl_mvm_prepare_mac_removal(mvm, vif); 1694 1695 if (!(vif->type == NL80211_IFTYPE_AP || 1696 vif->type == NL80211_IFTYPE_ADHOC)) 1697 iwl_mvm_tcm_rm_vif(mvm, vif); 1698 1699 mutex_lock(&mvm->mutex); 1700 1701 if (vif == mvm->csme_vif) { 1702 iwl_mei_set_netdev(NULL); 1703 mvm->csme_vif = NULL; 1704 } 1705 1706 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1707 lockdep_is_held(&mvm->mutex)); 1708 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1709 if (probe_data) 1710 kfree_rcu(probe_data, rcu_head); 1711 1712 if (mvm->bf_allowed_vif == mvmvif) { 1713 mvm->bf_allowed_vif = NULL; 1714 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1715 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1716 } 1717 1718 if (vif->bss_conf.ftm_responder) 1719 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1720 1721 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1722 1723 /* 1724 * For AP/GO interface, the tear down of the resources allocated to the 1725 * interface is be handled as part of the stop_ap flow. 1726 */ 1727 if (vif->type == NL80211_IFTYPE_AP || 1728 vif->type == NL80211_IFTYPE_ADHOC) { 1729 #ifdef CONFIG_NL80211_TESTMODE 1730 if (vif == mvm->noa_vif) { 1731 mvm->noa_vif = NULL; 1732 mvm->noa_duration = 0; 1733 } 1734 #endif 1735 return true; 1736 } 1737 1738 iwl_mvm_power_update_mac(mvm); 1739 return false; 1740 } 1741 1742 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1743 struct ieee80211_vif *vif) 1744 { 1745 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1746 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1747 1748 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1749 goto out; 1750 1751 /* Before the interface removal, mac80211 would cancel the ROC, and the 1752 * ROC worker would be scheduled if needed. The worker would be flushed 1753 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1754 * binding etc. so nothing needs to be done here. 1755 */ 1756 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1757 if (mvmvif->deflink.phy_ctxt) { 1758 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1759 mvmvif->deflink.phy_ctxt = NULL; 1760 } 1761 mvm->p2p_device_vif = NULL; 1762 } 1763 1764 iwl_mvm_mac_ctxt_remove(mvm, vif); 1765 1766 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1767 1768 if (vif->type == NL80211_IFTYPE_MONITOR) 1769 mvm->monitor_on = false; 1770 1771 out: 1772 if (vif->type == NL80211_IFTYPE_AP || 1773 vif->type == NL80211_IFTYPE_ADHOC) { 1774 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1775 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1776 } 1777 1778 mutex_unlock(&mvm->mutex); 1779 } 1780 1781 struct iwl_mvm_mc_iter_data { 1782 struct iwl_mvm *mvm; 1783 int port_id; 1784 }; 1785 1786 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1787 struct ieee80211_vif *vif) 1788 { 1789 struct iwl_mvm_mc_iter_data *data = _data; 1790 struct iwl_mvm *mvm = data->mvm; 1791 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1792 struct iwl_host_cmd hcmd = { 1793 .id = MCAST_FILTER_CMD, 1794 .flags = CMD_ASYNC, 1795 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1796 }; 1797 int ret, len; 1798 1799 /* if we don't have free ports, mcast frames will be dropped */ 1800 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1801 return; 1802 1803 if (vif->type != NL80211_IFTYPE_STATION || 1804 !vif->cfg.assoc) 1805 return; 1806 1807 cmd->port_id = data->port_id++; 1808 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1809 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1810 1811 hcmd.len[0] = len; 1812 hcmd.data[0] = cmd; 1813 1814 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1815 if (ret) 1816 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1817 } 1818 1819 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1820 { 1821 struct iwl_mvm_mc_iter_data iter_data = { 1822 .mvm = mvm, 1823 }; 1824 int ret; 1825 1826 lockdep_assert_held(&mvm->mutex); 1827 1828 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1829 return; 1830 1831 ieee80211_iterate_active_interfaces_atomic( 1832 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1833 iwl_mvm_mc_iface_iterator, &iter_data); 1834 1835 /* 1836 * Send a (synchronous) ech command so that we wait for the 1837 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1838 * the interface iterator. Otherwise, we might get here over 1839 * and over again (by userspace just sending a lot of these) 1840 * and the CPU can send them faster than the firmware can 1841 * process them. 1842 * Note that the CPU is still faster - but with this we'll 1843 * actually send fewer commands overall because the CPU will 1844 * not schedule the work in mac80211 as frequently if it's 1845 * still running when rescheduled (possibly multiple times). 1846 */ 1847 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1848 if (ret) 1849 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1850 } 1851 1852 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1853 struct netdev_hw_addr_list *mc_list) 1854 { 1855 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1856 struct iwl_mcast_filter_cmd *cmd; 1857 struct netdev_hw_addr *addr; 1858 int addr_count; 1859 bool pass_all; 1860 int len; 1861 1862 addr_count = netdev_hw_addr_list_count(mc_list); 1863 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1864 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1865 if (pass_all) 1866 addr_count = 0; 1867 1868 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1869 cmd = kzalloc(len, GFP_ATOMIC); 1870 if (!cmd) 1871 return 0; 1872 1873 if (pass_all) { 1874 cmd->pass_all = 1; 1875 return (u64)(unsigned long)cmd; 1876 } 1877 1878 netdev_hw_addr_list_for_each(addr, mc_list) { 1879 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1880 cmd->count, addr->addr); 1881 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1882 addr->addr, ETH_ALEN); 1883 cmd->count++; 1884 } 1885 1886 return (u64)(unsigned long)cmd; 1887 } 1888 1889 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1890 unsigned int changed_flags, 1891 unsigned int *total_flags, u64 multicast) 1892 { 1893 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1894 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1895 1896 mutex_lock(&mvm->mutex); 1897 1898 /* replace previous configuration */ 1899 kfree(mvm->mcast_filter_cmd); 1900 mvm->mcast_filter_cmd = cmd; 1901 1902 if (!cmd) 1903 goto out; 1904 1905 if (changed_flags & FIF_ALLMULTI) 1906 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1907 1908 if (cmd->pass_all) 1909 cmd->count = 0; 1910 1911 iwl_mvm_recalc_multicast(mvm); 1912 out: 1913 mutex_unlock(&mvm->mutex); 1914 *total_flags = 0; 1915 } 1916 1917 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1918 struct ieee80211_vif *vif, 1919 unsigned int filter_flags, 1920 unsigned int changed_flags) 1921 { 1922 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1923 1924 /* We support only filter for probe requests */ 1925 if (!(changed_flags & FIF_PROBE_REQ)) 1926 return; 1927 1928 /* Supported only for p2p client interfaces */ 1929 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1930 !vif->p2p) 1931 return; 1932 1933 mutex_lock(&mvm->mutex); 1934 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1935 mutex_unlock(&mvm->mutex); 1936 } 1937 1938 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1939 { 1940 struct iwl_mu_group_mgmt_cmd cmd = {}; 1941 1942 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1943 WLAN_MEMBERSHIP_LEN); 1944 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1945 WLAN_USER_POSITION_LEN); 1946 1947 return iwl_mvm_send_cmd_pdu(mvm, 1948 WIDE_ID(DATA_PATH_GROUP, 1949 UPDATE_MU_GROUPS_CMD), 1950 0, sizeof(cmd), &cmd); 1951 } 1952 1953 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1954 struct ieee80211_vif *vif) 1955 { 1956 if (vif->bss_conf.mu_mimo_owner) { 1957 struct iwl_mu_group_mgmt_notif *notif = _data; 1958 1959 /* 1960 * MU-MIMO Group Id action frame is little endian. We treat 1961 * the data received from firmware as if it came from the 1962 * action frame, so no conversion is needed. 1963 */ 1964 ieee80211_update_mu_groups(vif, 0, 1965 (u8 *)¬if->membership_status, 1966 (u8 *)¬if->user_position); 1967 } 1968 } 1969 1970 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1971 struct iwl_rx_cmd_buffer *rxb) 1972 { 1973 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1974 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1975 1976 ieee80211_iterate_active_interfaces_atomic( 1977 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1978 iwl_mvm_mu_mimo_iface_iterator, notif); 1979 } 1980 1981 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1982 { 1983 u8 byte_num = ppe_pos_bit / 8; 1984 u8 bit_num = ppe_pos_bit % 8; 1985 u8 residue_bits; 1986 u8 res; 1987 1988 if (bit_num <= 5) 1989 return (ppe[byte_num] >> bit_num) & 1990 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1991 1992 /* 1993 * If bit_num > 5, we have to combine bits with next byte. 1994 * Calculate how many bits we need to take from current byte (called 1995 * here "residue_bits"), and add them to bits from next byte. 1996 */ 1997 1998 residue_bits = 8 - bit_num; 1999 2000 res = (ppe[byte_num + 1] & 2001 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2002 residue_bits; 2003 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2004 2005 return res; 2006 } 2007 2008 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2009 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2010 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2011 bool inheritance) 2012 { 2013 int i; 2014 2015 /* 2016 * FW currently supports only nss == MAX_HE_SUPP_NSS 2017 * 2018 * If nss > MAX: we can ignore values we don't support 2019 * If nss < MAX: we can set zeros in other streams 2020 */ 2021 if (nss > MAX_HE_SUPP_NSS) { 2022 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2023 MAX_HE_SUPP_NSS); 2024 nss = MAX_HE_SUPP_NSS; 2025 } 2026 2027 for (i = 0; i < nss; i++) { 2028 u8 ru_index_tmp = ru_index_bitmap << 1; 2029 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2030 u8 bw; 2031 2032 for (bw = 0; 2033 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2034 bw++) { 2035 ru_index_tmp >>= 1; 2036 2037 /* 2038 * According to the 11be spec, if for a specific BW the PPE Thresholds 2039 * isn't present - it should inherit the thresholds from the last 2040 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2041 * this inheritance - continue in this case 2042 */ 2043 if (!(ru_index_tmp & 1)) { 2044 if (inheritance) 2045 goto set_thresholds; 2046 else 2047 continue; 2048 } 2049 2050 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2051 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2052 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2053 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2054 2055 set_thresholds: 2056 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2057 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2058 } 2059 } 2060 } 2061 2062 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2063 struct ieee80211_link_sta *link_sta, 2064 struct iwl_he_pkt_ext_v2 *pkt_ext, 2065 bool inheritance) 2066 { 2067 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2068 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2069 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2070 u8 ru_index_bitmap = 2071 u8_get_bits(*ppe, 2072 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2073 /* Starting after PPE header */ 2074 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2075 2076 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2077 inheritance); 2078 } 2079 2080 static int 2081 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2082 u8 nominal_padding) 2083 { 2084 int low_th = -1; 2085 int high_th = -1; 2086 int i; 2087 2088 /* all the macros are the same for EHT and HE */ 2089 switch (nominal_padding) { 2090 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2091 low_th = IWL_HE_PKT_EXT_NONE; 2092 high_th = IWL_HE_PKT_EXT_NONE; 2093 break; 2094 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2095 low_th = IWL_HE_PKT_EXT_BPSK; 2096 high_th = IWL_HE_PKT_EXT_NONE; 2097 break; 2098 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2099 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2100 low_th = IWL_HE_PKT_EXT_NONE; 2101 high_th = IWL_HE_PKT_EXT_BPSK; 2102 break; 2103 } 2104 2105 if (low_th < 0 || high_th < 0) 2106 return -EINVAL; 2107 2108 /* Set the PPE thresholds accordingly */ 2109 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2110 u8 bw; 2111 2112 for (bw = 0; 2113 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2114 bw++) { 2115 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2116 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2117 } 2118 } 2119 2120 return 0; 2121 } 2122 2123 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2124 u8 nominal_padding) 2125 { 2126 int i; 2127 2128 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2129 u8 bw; 2130 2131 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2132 bw++) { 2133 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2134 2135 if (nominal_padding > 2136 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2137 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2138 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2139 else if (nominal_padding == 2140 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2141 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2142 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2143 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2144 } 2145 } 2146 } 2147 2148 /* Set the pkt_ext field according to PPE Thresholds element */ 2149 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2150 struct ieee80211_link_sta *link_sta, 2151 struct iwl_he_pkt_ext_v2 *pkt_ext) 2152 { 2153 u8 nominal_padding; 2154 int i, ret = 0; 2155 2156 if (WARN_ON(!link_sta)) 2157 return -EINVAL; 2158 2159 /* Initialize the PPE thresholds to "None" (7), as described in Table 2160 * 9-262ac of 80211.ax/D3.0. 2161 */ 2162 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2163 sizeof(struct iwl_he_pkt_ext_v2)); 2164 2165 if (link_sta->eht_cap.has_eht) { 2166 nominal_padding = 2167 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2168 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2169 2170 /* If PPE Thresholds exists, parse them into a FW-familiar 2171 * format. 2172 */ 2173 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2174 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2175 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2176 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2177 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2178 u8 ru_index_bitmap = 2179 u16_get_bits(*ppe, 2180 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2181 /* Starting after PPE header */ 2182 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2183 2184 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2185 ppe, ppe_pos_bit, true); 2186 /* EHT PPE Thresholds doesn't exist - set the API according to 2187 * HE PPE Tresholds 2188 */ 2189 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2190 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2191 /* Even though HE Capabilities IE doesn't contain PPE 2192 * Thresholds for BW 320Mhz, thresholds for this BW will 2193 * be filled in with the same values as 160Mhz, due to 2194 * the inheritance, as required. 2195 */ 2196 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2197 true); 2198 2199 /* According to the requirements, for MCSs 12-13 the 2200 * maximum value between HE PPE Threshold and Common 2201 * Nominal Packet Padding needs to be taken 2202 */ 2203 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2204 2205 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2206 * take the Thresholds from Common Nominal Packet Padding field 2207 */ 2208 } else { 2209 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2210 nominal_padding); 2211 } 2212 } else if (link_sta->he_cap.has_he) { 2213 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2214 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2215 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2216 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2217 false); 2218 /* PPE Thresholds doesn't exist - set the API PPE values 2219 * according to Common Nominal Packet Padding field. 2220 */ 2221 } else { 2222 nominal_padding = 2223 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2224 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2225 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2226 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2227 nominal_padding); 2228 } 2229 } 2230 2231 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2232 int bw; 2233 2234 for (bw = 0; 2235 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2236 bw++) { 2237 u8 *qam_th = 2238 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2239 2240 IWL_DEBUG_HT(mvm, 2241 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2242 i, bw, qam_th[0], qam_th[1]); 2243 } 2244 } 2245 return ret; 2246 } 2247 2248 /* 2249 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2250 * is enabled or not 2251 */ 2252 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2253 const struct iwl_mvm_vif_link_info *link_info, 2254 struct iwl_he_backoff_conf *trig_based_txf) 2255 { 2256 int i; 2257 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2258 bool mu_edca_enabled = true; 2259 2260 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2261 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2262 &link_info->queue_params[i].mu_edca_param_rec; 2263 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2264 2265 if (!link_info->queue_params[i].mu_edca) { 2266 mu_edca_enabled = false; 2267 break; 2268 } 2269 2270 trig_based_txf[ac].cwmin = 2271 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2272 trig_based_txf[ac].cwmax = 2273 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2274 trig_based_txf[ac].aifsn = 2275 cpu_to_le16(mu_edca->aifsn & 0xf); 2276 trig_based_txf[ac].mu_time = 2277 cpu_to_le16(mu_edca->mu_edca_timer); 2278 } 2279 2280 return mu_edca_enabled; 2281 } 2282 2283 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2284 { 2285 const struct ieee80211_supported_band *sband; 2286 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2287 2288 /* This capability is the same for all bands, 2289 * so take it from one of them. 2290 */ 2291 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2292 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2293 2294 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2295 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2296 } 2297 2298 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2299 struct ieee80211_link_sta *link_sta) 2300 { 2301 u8 *mac_cap_info = 2302 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2303 __le32 htc_flags = 0; 2304 2305 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2306 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2307 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2308 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2309 u8 link_adap = 2310 ((mac_cap_info[2] & 2311 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2312 (mac_cap_info[1] & 2313 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2314 2315 if (link_adap == 2) 2316 htc_flags |= 2317 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2318 else if (link_adap == 3) 2319 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2320 } 2321 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2322 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2323 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2324 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2325 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2326 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2327 2328 return htc_flags; 2329 } 2330 2331 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2332 struct ieee80211_vif *vif, u8 sta_id) 2333 { 2334 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2335 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2336 .sta_id = sta_id, 2337 .tid_limit = IWL_MAX_TID_COUNT, 2338 .bss_color = vif->bss_conf.he_bss_color.color, 2339 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2340 .frame_time_rts_th = 2341 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2342 }; 2343 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2344 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2345 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2346 int size; 2347 struct ieee80211_sta *sta; 2348 u32 flags; 2349 int i; 2350 void *cmd; 2351 2352 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2353 ver = 1; 2354 2355 switch (ver) { 2356 case 1: 2357 /* same layout as v2 except some data at the end */ 2358 cmd = &sta_ctxt_cmd_v2; 2359 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2360 break; 2361 case 2: 2362 cmd = &sta_ctxt_cmd_v2; 2363 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2364 break; 2365 case 3: 2366 cmd = &sta_ctxt_cmd; 2367 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2368 break; 2369 default: 2370 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2371 return; 2372 } 2373 2374 rcu_read_lock(); 2375 2376 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2377 if (IS_ERR_OR_NULL(sta)) { 2378 rcu_read_unlock(); 2379 WARN(1, "Can't find STA to configure HE\n"); 2380 return; 2381 } 2382 2383 if (!sta->deflink.he_cap.has_he) { 2384 rcu_read_unlock(); 2385 return; 2386 } 2387 2388 flags = 0; 2389 2390 /* Block 26-tone RU OFDMA transmissions */ 2391 if (mvmvif->deflink.he_ru_2mhz_block) 2392 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2393 2394 /* HTC flags */ 2395 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2396 2397 /* PPE Thresholds */ 2398 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2399 flags |= STA_CTXT_HE_PACKET_EXT; 2400 2401 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2402 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2403 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2404 2405 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2406 IEEE80211_HE_MAC_CAP2_ACK_EN) 2407 flags |= STA_CTXT_HE_ACK_ENABLED; 2408 2409 rcu_read_unlock(); 2410 2411 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2412 &sta_ctxt_cmd.trig_based_txf[0])) 2413 flags |= STA_CTXT_HE_MU_EDCA_CW; 2414 2415 if (vif->bss_conf.uora_exists) { 2416 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2417 2418 sta_ctxt_cmd.rand_alloc_ecwmin = 2419 vif->bss_conf.uora_ocw_range & 0x7; 2420 sta_ctxt_cmd.rand_alloc_ecwmax = 2421 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2422 } 2423 2424 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2425 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2426 2427 if (vif->bss_conf.nontransmitted) { 2428 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2429 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2430 vif->bss_conf.transmitter_bssid); 2431 sta_ctxt_cmd.max_bssid_indicator = 2432 vif->bss_conf.bssid_indicator; 2433 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2434 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2435 sta_ctxt_cmd.profile_periodicity = 2436 vif->bss_conf.profile_periodicity; 2437 } 2438 2439 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2440 2441 if (ver < 3) { 2442 /* fields before pkt_ext */ 2443 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2444 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2445 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2446 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2447 2448 /* pkt_ext */ 2449 for (i = 0; 2450 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2451 i++) { 2452 u8 bw; 2453 2454 for (bw = 0; 2455 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2456 bw++) { 2457 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2458 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2459 2460 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2461 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2462 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2463 } 2464 } 2465 2466 /* fields after pkt_ext */ 2467 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2468 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2469 sizeof(sta_ctxt_cmd_v2) - 2470 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2471 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2472 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2473 (u8 *)&sta_ctxt_cmd + 2474 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2475 sizeof(sta_ctxt_cmd) - 2476 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2477 sta_ctxt_cmd_v2.reserved3 = 0; 2478 } 2479 2480 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2481 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2482 } 2483 2484 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2485 u32 duration_override, unsigned int link_id) 2486 { 2487 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2488 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2489 2490 if (duration_override > duration) 2491 duration = duration_override; 2492 2493 /* Try really hard to protect the session and hear a beacon 2494 * The new session protection command allows us to protect the 2495 * session for a much longer time since the firmware will internally 2496 * create two events: a 300TU one with a very high priority that 2497 * won't be fragmented which should be enough for 99% of the cases, 2498 * and another one (which we configure here to be 900TU long) which 2499 * will have a slightly lower priority, but more importantly, can be 2500 * fragmented so that it'll allow other activities to run. 2501 */ 2502 if (fw_has_capa(&mvm->fw->ucode_capa, 2503 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2504 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2505 min_duration, false, 2506 link_id); 2507 else 2508 iwl_mvm_protect_session(mvm, vif, duration, 2509 min_duration, 500, false); 2510 } 2511 2512 /* Handle association common part to MLD and non-MLD modes */ 2513 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2514 struct ieee80211_vif *vif, 2515 u64 changes) 2516 { 2517 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2518 int ret; 2519 2520 /* The firmware tracks the MU-MIMO group on its own. 2521 * However, on HW restart we should restore this data. 2522 */ 2523 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2524 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2525 ret = iwl_mvm_update_mu_groups(mvm, vif); 2526 if (ret) 2527 IWL_ERR(mvm, 2528 "failed to update VHT MU_MIMO groups\n"); 2529 } 2530 2531 iwl_mvm_recalc_multicast(mvm); 2532 2533 /* reset rssi values */ 2534 mvmvif->bf_data.ave_beacon_signal = 0; 2535 2536 iwl_mvm_bt_coex_vif_change(mvm); 2537 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2538 IEEE80211_SMPS_AUTOMATIC); 2539 if (fw_has_capa(&mvm->fw->ucode_capa, 2540 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2541 iwl_mvm_config_scan(mvm); 2542 } 2543 2544 /* Execute the common part for MLD and non-MLD modes */ 2545 void 2546 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2547 struct ieee80211_vif *vif, 2548 struct ieee80211_bss_conf *link_conf, 2549 u64 changes) 2550 { 2551 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2552 int ret; 2553 2554 if (changes & BSS_CHANGED_BEACON_INFO) { 2555 /* We received a beacon from the associated AP so 2556 * remove the session protection. 2557 */ 2558 iwl_mvm_stop_session_protection(mvm, vif); 2559 2560 iwl_mvm_sf_update(mvm, vif, false); 2561 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2562 } 2563 2564 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2565 /* Send power command on every beacon change, 2566 * because we may have not enabled beacon abort yet. 2567 */ 2568 BSS_CHANGED_BEACON_INFO)) { 2569 ret = iwl_mvm_power_update_mac(mvm); 2570 if (ret) 2571 IWL_ERR(mvm, "failed to update power mode\n"); 2572 } 2573 2574 if (changes & BSS_CHANGED_CQM) { 2575 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2576 /* reset cqm events tracking */ 2577 mvmvif->bf_data.last_cqm_event = 0; 2578 if (mvmvif->bf_data.bf_enabled) { 2579 /* FIXME: need to update per link when FW API will 2580 * support it 2581 */ 2582 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2583 if (ret) 2584 IWL_ERR(mvm, 2585 "failed to update CQM thresholds\n"); 2586 } 2587 } 2588 2589 if (changes & BSS_CHANGED_BANDWIDTH) 2590 iwl_mvm_update_link_smps(vif, link_conf); 2591 } 2592 2593 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2594 struct ieee80211_vif *vif, 2595 struct ieee80211_bss_conf *bss_conf, 2596 u64 changes) 2597 { 2598 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2599 int ret; 2600 int i; 2601 2602 /* 2603 * Re-calculate the tsf id, as the leader-follower relations depend 2604 * on the beacon interval, which was not known when the station 2605 * interface was added. 2606 */ 2607 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2608 if ((vif->bss_conf.he_support && 2609 !iwlwifi_mod_params.disable_11ax) || 2610 (vif->bss_conf.eht_support && 2611 !iwlwifi_mod_params.disable_11be)) 2612 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2613 2614 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2615 } 2616 2617 /* Update MU EDCA params */ 2618 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2619 vif->cfg.assoc && 2620 ((vif->bss_conf.he_support && 2621 !iwlwifi_mod_params.disable_11ax) || 2622 (vif->bss_conf.eht_support && 2623 !iwlwifi_mod_params.disable_11be))) 2624 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2625 2626 /* 2627 * If we're not associated yet, take the (new) BSSID before associating 2628 * so the firmware knows. If we're already associated, then use the old 2629 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2630 * branch for disassociation below. 2631 */ 2632 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2633 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2634 2635 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2636 if (ret) 2637 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2638 2639 /* after sending it once, adopt mac80211 data */ 2640 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2641 mvmvif->associated = vif->cfg.assoc; 2642 2643 if (changes & BSS_CHANGED_ASSOC) { 2644 if (vif->cfg.assoc) { 2645 /* clear statistics to get clean beacon counter */ 2646 iwl_mvm_request_statistics(mvm, true); 2647 for_each_mvm_vif_valid_link(mvmvif, i) 2648 memset(&mvmvif->link[i]->beacon_stats, 0, 2649 sizeof(mvmvif->link[i]->beacon_stats)); 2650 2651 /* add quota for this interface */ 2652 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2653 if (ret) { 2654 IWL_ERR(mvm, "failed to update quotas\n"); 2655 return; 2656 } 2657 2658 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2659 &mvm->status) && 2660 !fw_has_capa(&mvm->fw->ucode_capa, 2661 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2662 /* 2663 * If we're restarting then the firmware will 2664 * obviously have lost synchronisation with 2665 * the AP. It will attempt to synchronise by 2666 * itself, but we can make it more reliable by 2667 * scheduling a session protection time event. 2668 * 2669 * The firmware needs to receive a beacon to 2670 * catch up with synchronisation, use 110% of 2671 * the beacon interval. 2672 * 2673 * Set a large maximum delay to allow for more 2674 * than a single interface. 2675 * 2676 * For new firmware versions, rely on the 2677 * firmware. This is relevant for DCM scenarios 2678 * only anyway. 2679 */ 2680 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2681 iwl_mvm_protect_session(mvm, vif, dur, dur, 2682 5 * dur, false); 2683 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2684 &mvm->status) && 2685 !vif->bss_conf.dtim_period) { 2686 /* 2687 * If we're not restarting and still haven't 2688 * heard a beacon (dtim period unknown) then 2689 * make sure we still have enough minimum time 2690 * remaining in the time event, since the auth 2691 * might actually have taken quite a while 2692 * (especially for SAE) and so the remaining 2693 * time could be small without us having heard 2694 * a beacon yet. 2695 */ 2696 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2697 } 2698 2699 iwl_mvm_sf_update(mvm, vif, false); 2700 iwl_mvm_power_vif_assoc(mvm, vif); 2701 if (vif->p2p) { 2702 iwl_mvm_update_smps(mvm, vif, 2703 IWL_MVM_SMPS_REQ_PROT, 2704 IEEE80211_SMPS_DYNAMIC, 0); 2705 } 2706 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2707 iwl_mvm_mei_host_disassociated(mvm); 2708 /* 2709 * If update fails - SF might be running in associated 2710 * mode while disassociated - which is forbidden. 2711 */ 2712 ret = iwl_mvm_sf_update(mvm, vif, false); 2713 WARN_ONCE(ret && 2714 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2715 &mvm->status), 2716 "Failed to update SF upon disassociation\n"); 2717 2718 /* 2719 * If we get an assert during the connection (after the 2720 * station has been added, but before the vif is set 2721 * to associated), mac80211 will re-add the station and 2722 * then configure the vif. Since the vif is not 2723 * associated, we would remove the station here and 2724 * this would fail the recovery. 2725 */ 2726 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2727 &mvm->status)) { 2728 /* first remove remaining keys */ 2729 iwl_mvm_sec_key_remove_ap(mvm, vif, 2730 &mvmvif->deflink, 0); 2731 2732 /* 2733 * Remove AP station now that 2734 * the MAC is unassoc 2735 */ 2736 ret = iwl_mvm_rm_sta_id(mvm, vif, 2737 mvmvif->deflink.ap_sta_id); 2738 if (ret) 2739 IWL_ERR(mvm, 2740 "failed to remove AP station\n"); 2741 2742 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2743 } 2744 2745 /* remove quota for this interface */ 2746 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2747 if (ret) 2748 IWL_ERR(mvm, "failed to update quotas\n"); 2749 2750 /* this will take the cleared BSSID from bss_conf */ 2751 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2752 if (ret) 2753 IWL_ERR(mvm, 2754 "failed to update MAC %pM (clear after unassoc)\n", 2755 vif->addr); 2756 } 2757 2758 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2759 } 2760 2761 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2762 changes); 2763 } 2764 2765 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2766 struct ieee80211_vif *vif, 2767 int *ret) 2768 { 2769 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2770 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2771 int i; 2772 2773 lockdep_assert_held(&mvm->mutex); 2774 2775 mvmvif->ap_assoc_sta_count = 0; 2776 2777 /* must be set before quota calculations */ 2778 mvmvif->ap_ibss_active = true; 2779 2780 /* send all the early keys to the device now */ 2781 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2782 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2783 2784 if (!key) 2785 continue; 2786 2787 mvmvif->ap_early_keys[i] = NULL; 2788 2789 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2790 if (*ret) 2791 return true; 2792 } 2793 2794 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2795 iwl_mvm_vif_set_low_latency(mvmvif, true, 2796 LOW_LATENCY_VIF_TYPE); 2797 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2798 } 2799 2800 /* power updated needs to be done before quotas */ 2801 iwl_mvm_power_update_mac(mvm); 2802 2803 return false; 2804 } 2805 2806 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2807 struct ieee80211_vif *vif, 2808 struct ieee80211_bss_conf *link_conf) 2809 { 2810 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2811 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2812 int ret; 2813 2814 mutex_lock(&mvm->mutex); 2815 2816 /* 2817 * Re-calculate the tsf id, as the leader-follower relations depend on 2818 * the beacon interval, which was not known when the AP interface 2819 * was added. 2820 */ 2821 if (vif->type == NL80211_IFTYPE_AP) 2822 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2823 2824 /* For older devices need to send beacon template before adding mac 2825 * context. For the newer, the beacon is a resource that belongs to a 2826 * MAC, so need to send beacon template after adding the mac. 2827 */ 2828 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2829 /* Add the mac context */ 2830 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2831 if (ret) 2832 goto out_unlock; 2833 2834 /* Send the beacon template */ 2835 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2836 if (ret) 2837 goto out_unlock; 2838 } else { 2839 /* Send the beacon template */ 2840 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2841 if (ret) 2842 goto out_unlock; 2843 2844 /* Add the mac context */ 2845 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2846 if (ret) 2847 goto out_unlock; 2848 } 2849 2850 /* Perform the binding */ 2851 ret = iwl_mvm_binding_add_vif(mvm, vif); 2852 if (ret) 2853 goto out_remove; 2854 2855 /* 2856 * This is not very nice, but the simplest: 2857 * For older FWs adding the mcast sta before the bcast station may 2858 * cause assert 0x2b00. 2859 * This is fixed in later FW so make the order of removal depend on 2860 * the TLV 2861 */ 2862 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2863 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2864 if (ret) 2865 goto out_unbind; 2866 /* 2867 * Send the bcast station. At this stage the TBTT and DTIM time 2868 * events are added and applied to the scheduler 2869 */ 2870 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2871 if (ret) { 2872 iwl_mvm_rm_mcast_sta(mvm, vif); 2873 goto out_unbind; 2874 } 2875 } else { 2876 /* 2877 * Send the bcast station. At this stage the TBTT and DTIM time 2878 * events are added and applied to the scheduler 2879 */ 2880 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2881 if (ret) 2882 goto out_unbind; 2883 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2884 if (ret) { 2885 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2886 goto out_unbind; 2887 } 2888 } 2889 2890 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2891 goto out_failed; 2892 2893 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2894 if (ret) 2895 goto out_failed; 2896 2897 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2898 if (vif->p2p && mvm->p2p_device_vif) 2899 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2900 2901 iwl_mvm_bt_coex_vif_change(mvm); 2902 2903 /* we don't support TDLS during DCM */ 2904 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2905 iwl_mvm_teardown_tdls_peers(mvm); 2906 2907 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2908 2909 goto out_unlock; 2910 2911 out_failed: 2912 iwl_mvm_power_update_mac(mvm); 2913 mvmvif->ap_ibss_active = false; 2914 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2915 iwl_mvm_rm_mcast_sta(mvm, vif); 2916 out_unbind: 2917 iwl_mvm_binding_remove_vif(mvm, vif); 2918 out_remove: 2919 iwl_mvm_mac_ctxt_remove(mvm, vif); 2920 out_unlock: 2921 mutex_unlock(&mvm->mutex); 2922 return ret; 2923 } 2924 2925 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2926 struct ieee80211_vif *vif, 2927 struct ieee80211_bss_conf *link_conf) 2928 { 2929 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2930 } 2931 2932 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2933 struct ieee80211_vif *vif) 2934 { 2935 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2936 } 2937 2938 /* Common part for MLD and non-MLD ops */ 2939 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2940 struct ieee80211_vif *vif) 2941 { 2942 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2943 2944 lockdep_assert_held(&mvm->mutex); 2945 2946 iwl_mvm_prepare_mac_removal(mvm, vif); 2947 2948 /* Handle AP stop while in CSA */ 2949 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2950 iwl_mvm_remove_time_event(mvm, mvmvif, 2951 &mvmvif->time_event_data); 2952 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2953 mvmvif->csa_countdown = false; 2954 } 2955 2956 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2957 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2958 mvm->csa_tx_block_bcn_timeout = 0; 2959 } 2960 2961 mvmvif->ap_ibss_active = false; 2962 mvm->ap_last_beacon_gp2 = 0; 2963 2964 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2965 iwl_mvm_vif_set_low_latency(mvmvif, false, 2966 LOW_LATENCY_VIF_TYPE); 2967 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2968 } 2969 2970 iwl_mvm_bt_coex_vif_change(mvm); 2971 } 2972 2973 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2974 struct ieee80211_vif *vif, 2975 struct ieee80211_bss_conf *link_conf) 2976 { 2977 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2978 2979 mutex_lock(&mvm->mutex); 2980 2981 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2982 2983 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2984 if (vif->p2p && mvm->p2p_device_vif) 2985 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2986 2987 iwl_mvm_update_quotas(mvm, false, NULL); 2988 2989 iwl_mvm_ftm_responder_clear(mvm, vif); 2990 2991 /* 2992 * This is not very nice, but the simplest: 2993 * For older FWs removing the mcast sta before the bcast station may 2994 * cause assert 0x2b00. 2995 * This is fixed in later FW (which will stop beaconing when removing 2996 * bcast station). 2997 * So make the order of removal depend on the TLV 2998 */ 2999 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3000 iwl_mvm_rm_mcast_sta(mvm, vif); 3001 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3002 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3003 iwl_mvm_rm_mcast_sta(mvm, vif); 3004 iwl_mvm_binding_remove_vif(mvm, vif); 3005 3006 iwl_mvm_power_update_mac(mvm); 3007 3008 iwl_mvm_mac_ctxt_remove(mvm, vif); 3009 3010 mutex_unlock(&mvm->mutex); 3011 } 3012 3013 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3014 struct ieee80211_vif *vif, 3015 struct ieee80211_bss_conf *link_conf) 3016 { 3017 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3018 } 3019 3020 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3021 struct ieee80211_vif *vif) 3022 { 3023 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3024 } 3025 3026 static void 3027 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3028 struct ieee80211_vif *vif, 3029 struct ieee80211_bss_conf *bss_conf, 3030 u64 changes) 3031 { 3032 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3033 3034 /* Changes will be applied when the AP/IBSS is started */ 3035 if (!mvmvif->ap_ibss_active) 3036 return; 3037 3038 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3039 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3040 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3041 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3042 3043 /* Need to send a new beacon template to the FW */ 3044 if (changes & BSS_CHANGED_BEACON && 3045 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3046 IWL_WARN(mvm, "Failed updating beacon data\n"); 3047 3048 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3049 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3050 3051 if (ret) 3052 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3053 ret); 3054 } 3055 3056 } 3057 3058 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3059 struct ieee80211_vif *vif, 3060 struct ieee80211_bss_conf *bss_conf, 3061 u64 changes) 3062 { 3063 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3064 3065 mutex_lock(&mvm->mutex); 3066 3067 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3068 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3069 3070 switch (vif->type) { 3071 case NL80211_IFTYPE_STATION: 3072 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3073 break; 3074 case NL80211_IFTYPE_AP: 3075 case NL80211_IFTYPE_ADHOC: 3076 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3077 break; 3078 case NL80211_IFTYPE_MONITOR: 3079 if (changes & BSS_CHANGED_MU_GROUPS) 3080 iwl_mvm_update_mu_groups(mvm, vif); 3081 break; 3082 default: 3083 /* shouldn't happen */ 3084 WARN_ON_ONCE(1); 3085 } 3086 3087 if (changes & BSS_CHANGED_TXPOWER) { 3088 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3089 bss_conf->txpower); 3090 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3091 } 3092 3093 mutex_unlock(&mvm->mutex); 3094 } 3095 3096 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3097 struct ieee80211_scan_request *hw_req) 3098 { 3099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3100 int ret; 3101 3102 if (hw_req->req.n_channels == 0 || 3103 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3104 return -EINVAL; 3105 3106 mutex_lock(&mvm->mutex); 3107 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3108 mutex_unlock(&mvm->mutex); 3109 3110 return ret; 3111 } 3112 3113 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3114 struct ieee80211_vif *vif) 3115 { 3116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3117 3118 mutex_lock(&mvm->mutex); 3119 3120 /* Due to a race condition, it's possible that mac80211 asks 3121 * us to stop a hw_scan when it's already stopped. This can 3122 * happen, for instance, if we stopped the scan ourselves, 3123 * called ieee80211_scan_completed() and the userspace called 3124 * cancel scan scan before ieee80211_scan_work() could run. 3125 * To handle that, simply return if the scan is not running. 3126 */ 3127 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3128 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3129 3130 mutex_unlock(&mvm->mutex); 3131 } 3132 3133 void 3134 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3135 struct ieee80211_sta *sta, u16 tids, 3136 int num_frames, 3137 enum ieee80211_frame_release_type reason, 3138 bool more_data) 3139 { 3140 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3141 3142 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3143 3144 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3145 tids, more_data, false); 3146 } 3147 3148 void 3149 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3150 struct ieee80211_sta *sta, u16 tids, 3151 int num_frames, 3152 enum ieee80211_frame_release_type reason, 3153 bool more_data) 3154 { 3155 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3156 3157 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3158 3159 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3160 tids, more_data, true); 3161 } 3162 3163 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3164 enum sta_notify_cmd cmd, 3165 struct ieee80211_sta *sta) 3166 { 3167 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3168 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3169 unsigned long txqs = 0, tids = 0; 3170 int tid; 3171 3172 /* 3173 * If we have TVQM then we get too high queue numbers - luckily 3174 * we really shouldn't get here with that because such hardware 3175 * should have firmware supporting buffer station offload. 3176 */ 3177 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3178 return; 3179 3180 spin_lock_bh(&mvmsta->lock); 3181 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3182 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3183 3184 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3185 continue; 3186 3187 __set_bit(tid_data->txq_id, &txqs); 3188 3189 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3190 continue; 3191 3192 __set_bit(tid, &tids); 3193 } 3194 3195 switch (cmd) { 3196 case STA_NOTIFY_SLEEP: 3197 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3198 ieee80211_sta_set_buffered(sta, tid, true); 3199 3200 if (txqs) 3201 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3202 /* 3203 * The fw updates the STA to be asleep. Tx packets on the Tx 3204 * queues to this station will not be transmitted. The fw will 3205 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3206 */ 3207 break; 3208 case STA_NOTIFY_AWAKE: 3209 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3210 break; 3211 3212 if (txqs) 3213 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3214 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3215 break; 3216 default: 3217 break; 3218 } 3219 spin_unlock_bh(&mvmsta->lock); 3220 } 3221 3222 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3223 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3224 { 3225 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3226 } 3227 3228 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3229 { 3230 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3231 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3232 struct ieee80211_sta *sta; 3233 struct iwl_mvm_sta *mvmsta; 3234 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3235 3236 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3237 return; 3238 3239 rcu_read_lock(); 3240 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3241 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3242 rcu_read_unlock(); 3243 return; 3244 } 3245 3246 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3247 3248 if (!mvmsta->vif || 3249 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3250 rcu_read_unlock(); 3251 return; 3252 } 3253 3254 if (mvmsta->sleeping != sleeping) { 3255 mvmsta->sleeping = sleeping; 3256 __iwl_mvm_mac_sta_notify(mvm->hw, 3257 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3258 sta); 3259 ieee80211_sta_ps_transition(sta, sleeping); 3260 } 3261 3262 if (sleeping) { 3263 switch (notif->type) { 3264 case IWL_MVM_PM_EVENT_AWAKE: 3265 case IWL_MVM_PM_EVENT_ASLEEP: 3266 break; 3267 case IWL_MVM_PM_EVENT_UAPSD: 3268 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3269 break; 3270 case IWL_MVM_PM_EVENT_PS_POLL: 3271 ieee80211_sta_pspoll(sta); 3272 break; 3273 default: 3274 break; 3275 } 3276 } 3277 3278 rcu_read_unlock(); 3279 } 3280 3281 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3282 struct ieee80211_vif *vif, 3283 struct ieee80211_sta *sta) 3284 { 3285 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3286 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3287 unsigned int link_id; 3288 3289 /* 3290 * This is called before mac80211 does RCU synchronisation, 3291 * so here we already invalidate our internal RCU-protected 3292 * station pointer. The rest of the code will thus no longer 3293 * be able to find the station this way, and we don't rely 3294 * on further RCU synchronisation after the sta_state() 3295 * callback deleted the station. 3296 * Since there's mvm->mutex here, no need to have RCU lock for 3297 * mvm_sta->link access. 3298 */ 3299 mutex_lock(&mvm->mutex); 3300 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3301 struct iwl_mvm_link_sta *link_sta; 3302 u32 sta_id; 3303 3304 if (!mvm_sta->link[link_id]) 3305 continue; 3306 3307 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3308 lockdep_is_held(&mvm->mutex)); 3309 sta_id = link_sta->sta_id; 3310 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3311 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3312 ERR_PTR(-ENOENT)); 3313 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3314 } 3315 } 3316 mutex_unlock(&mvm->mutex); 3317 } 3318 3319 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3320 const u8 *bssid) 3321 { 3322 int i; 3323 3324 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3325 struct iwl_mvm_tcm_mac *mdata; 3326 3327 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3328 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3329 mdata->opened_rx_ba_sessions = false; 3330 } 3331 3332 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3333 return; 3334 3335 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3336 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3337 return; 3338 } 3339 3340 if (!vif->p2p && 3341 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3342 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3343 return; 3344 } 3345 3346 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3347 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3348 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3349 return; 3350 } 3351 } 3352 3353 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3354 } 3355 3356 static void 3357 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3358 struct ieee80211_vif *vif, u8 *peer_addr, 3359 enum nl80211_tdls_operation action) 3360 { 3361 struct iwl_fw_dbg_trigger_tlv *trig; 3362 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3363 3364 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3365 FW_DBG_TRIGGER_TDLS); 3366 if (!trig) 3367 return; 3368 3369 tdls_trig = (void *)trig->data; 3370 3371 if (!(tdls_trig->action_bitmap & BIT(action))) 3372 return; 3373 3374 if (tdls_trig->peer_mode && 3375 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3376 return; 3377 3378 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3379 "TDLS event occurred, peer %pM, action %d", 3380 peer_addr, action); 3381 } 3382 3383 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3384 bool tolerated; 3385 }; 3386 3387 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3388 struct cfg80211_bss *bss, 3389 void *_data) 3390 { 3391 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3392 const struct cfg80211_bss_ies *ies; 3393 const struct element *elem; 3394 3395 rcu_read_lock(); 3396 ies = rcu_dereference(bss->ies); 3397 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3398 ies->len); 3399 3400 if (!elem || elem->datalen < 10 || 3401 !(elem->data[10] & 3402 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3403 data->tolerated = false; 3404 } 3405 rcu_read_unlock(); 3406 } 3407 3408 static void 3409 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3410 struct ieee80211_vif *vif, 3411 unsigned int link_id, 3412 struct ieee80211_bss_conf *link_conf) 3413 { 3414 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3415 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3416 .tolerated = true, 3417 }; 3418 3419 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3420 !mvmvif->link[link_id])) 3421 return; 3422 3423 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3424 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3425 return; 3426 } 3427 3428 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3429 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3430 &iter_data); 3431 3432 /* 3433 * If there is at least one AP on radar channel that cannot 3434 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3435 */ 3436 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3437 } 3438 3439 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3440 struct ieee80211_vif *vif) 3441 { 3442 struct ieee80211_supported_band *sband; 3443 const struct ieee80211_sta_he_cap *he_cap; 3444 3445 if (vif->type != NL80211_IFTYPE_STATION) 3446 return; 3447 3448 if (!mvm->cca_40mhz_workaround) 3449 return; 3450 3451 /* decrement and check that we reached zero */ 3452 mvm->cca_40mhz_workaround--; 3453 if (mvm->cca_40mhz_workaround) 3454 return; 3455 3456 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3457 3458 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3459 3460 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3461 3462 if (he_cap) { 3463 /* we know that ours is writable */ 3464 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3465 3466 he->he_cap_elem.phy_cap_info[0] |= 3467 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3468 } 3469 } 3470 3471 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3472 struct ieee80211_vif *vif, 3473 struct iwl_mvm_sta *mvm_sta) 3474 { 3475 #if IS_ENABLED(CONFIG_IWLMEI) 3476 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3477 struct iwl_mei_conn_info conn_info = { 3478 .ssid_len = vif->cfg.ssid_len, 3479 }; 3480 3481 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3482 return; 3483 3484 if (!mvm->mei_registered) 3485 return; 3486 3487 /* FIXME: MEI needs to be updated for MLO */ 3488 if (!vif->bss_conf.chandef.chan) 3489 return; 3490 3491 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3492 3493 switch (mvm_sta->pairwise_cipher) { 3494 case WLAN_CIPHER_SUITE_TKIP: 3495 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3496 break; 3497 case WLAN_CIPHER_SUITE_CCMP: 3498 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3499 break; 3500 case WLAN_CIPHER_SUITE_GCMP: 3501 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3502 break; 3503 case WLAN_CIPHER_SUITE_GCMP_256: 3504 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3505 break; 3506 case 0: 3507 /* open profile */ 3508 break; 3509 default: 3510 /* cipher not supported, don't send anything to iwlmei */ 3511 return; 3512 } 3513 3514 switch (mvmvif->rekey_data.akm) { 3515 case WLAN_AKM_SUITE_SAE & 0xff: 3516 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3517 break; 3518 case WLAN_AKM_SUITE_PSK & 0xff: 3519 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3520 break; 3521 case WLAN_AKM_SUITE_8021X & 0xff: 3522 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3523 break; 3524 case 0: 3525 /* open profile */ 3526 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3527 break; 3528 default: 3529 /* auth method / AKM not supported */ 3530 /* TODO: All the FT vesions of these? */ 3531 return; 3532 } 3533 3534 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3535 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3536 3537 /* TODO: add support for collocated AP data */ 3538 iwl_mei_host_associated(&conn_info, NULL); 3539 #endif 3540 } 3541 3542 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3543 struct ieee80211_vif *vif, 3544 bool force_assoc_off) 3545 { 3546 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3547 } 3548 3549 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3550 struct ieee80211_vif *vif, 3551 struct ieee80211_sta *sta, 3552 enum ieee80211_sta_state old_state, 3553 enum ieee80211_sta_state new_state) 3554 { 3555 static const struct iwl_mvm_sta_state_ops callbacks = { 3556 .add_sta = iwl_mvm_add_sta, 3557 .update_sta = iwl_mvm_update_sta, 3558 .rm_sta = iwl_mvm_rm_sta, 3559 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3560 }; 3561 3562 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3563 &callbacks); 3564 } 3565 3566 /* FIXME: temporary making two assumptions in all sta handling functions: 3567 * (1) when setting sta state, the link exists and protected 3568 * (2) if a link is valid in sta then it's valid in vif (can 3569 * use same index in the link array) 3570 */ 3571 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3572 struct ieee80211_vif *vif, 3573 struct ieee80211_sta *sta) 3574 { 3575 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3576 unsigned int link_id; 3577 3578 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3579 struct ieee80211_bss_conf *conf = 3580 link_conf_dereference_check(vif, link_id); 3581 struct ieee80211_link_sta *link_sta = 3582 link_sta_dereference_check(sta, link_id); 3583 3584 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3585 continue; 3586 3587 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3588 mvmvif->link[link_id]->phy_ctxt->channel->band); 3589 } 3590 } 3591 3592 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3593 3594 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3595 struct ieee80211_vif *vif, 3596 struct ieee80211_sta *sta) 3597 { 3598 struct ieee80211_link_sta *link_sta; 3599 unsigned int link_id; 3600 3601 /* Beacon interval check - firmware will crash if the beacon 3602 * interval is less than 16. We can't avoid connecting at all, 3603 * so refuse the station state change, this will cause mac80211 3604 * to abandon attempts to connect to this AP, and eventually 3605 * wpa_s will blocklist the AP... 3606 */ 3607 3608 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3609 struct ieee80211_bss_conf *link_conf = 3610 link_conf_dereference_protected(vif, link_id); 3611 3612 if (!link_conf) 3613 continue; 3614 3615 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3616 IWL_ERR(mvm, 3617 "Beacon interval %d for AP %pM is too small\n", 3618 link_conf->beacon_int, link_sta->addr); 3619 return false; 3620 } 3621 3622 link_conf->he_support = link_sta->he_cap.has_he; 3623 } 3624 3625 return true; 3626 } 3627 3628 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3629 struct ieee80211_vif *vif, 3630 struct ieee80211_sta *sta, 3631 bool is_sta) 3632 { 3633 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3634 struct ieee80211_link_sta *link_sta; 3635 unsigned int link_id; 3636 3637 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3638 struct ieee80211_bss_conf *link_conf = 3639 link_conf_dereference_protected(vif, link_id); 3640 3641 if (!link_conf || !mvmvif->link[link_id]) 3642 continue; 3643 3644 link_conf->he_support = link_sta->he_cap.has_he; 3645 3646 if (is_sta) { 3647 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3648 if (link_sta->he_cap.has_he) 3649 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3650 link_id, 3651 link_conf); 3652 } 3653 } 3654 } 3655 3656 static int 3657 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3658 struct ieee80211_vif *vif, 3659 struct ieee80211_sta *sta, 3660 const struct iwl_mvm_sta_state_ops *callbacks) 3661 { 3662 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3663 struct ieee80211_link_sta *link_sta; 3664 unsigned int i; 3665 int ret; 3666 3667 lockdep_assert_held(&mvm->mutex); 3668 3669 if (vif->type == NL80211_IFTYPE_STATION && 3670 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3671 return -EINVAL; 3672 3673 if (sta->tdls && 3674 (vif->p2p || 3675 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3676 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3677 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3678 return -EBUSY; 3679 } 3680 3681 ret = callbacks->add_sta(mvm, vif, sta); 3682 if (sta->tdls && ret == 0) { 3683 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3684 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3685 NL80211_TDLS_SETUP); 3686 } 3687 3688 for_each_sta_active_link(vif, sta, link_sta, i) 3689 link_sta->agg.max_rc_amsdu_len = 1; 3690 3691 ieee80211_sta_recalc_aggregates(sta); 3692 3693 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3694 mvmvif->ap_sta = sta; 3695 3696 return 0; 3697 } 3698 3699 static int 3700 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3701 struct iwl_mvm *mvm, 3702 struct ieee80211_vif *vif, 3703 struct ieee80211_sta *sta, 3704 const struct iwl_mvm_sta_state_ops *callbacks) 3705 { 3706 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3707 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3708 struct ieee80211_link_sta *link_sta; 3709 unsigned int link_id; 3710 3711 lockdep_assert_held(&mvm->mutex); 3712 3713 if (vif->type == NL80211_IFTYPE_AP) { 3714 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3715 mvmvif->ap_assoc_sta_count++; 3716 callbacks->mac_ctxt_changed(mvm, vif, false); 3717 3718 /* since the below is not for MLD API, it's ok to use 3719 * the default bss_conf 3720 */ 3721 if (!mvm->mld_api_is_used && 3722 ((vif->bss_conf.he_support && 3723 !iwlwifi_mod_params.disable_11ax) || 3724 (vif->bss_conf.eht_support && 3725 !iwlwifi_mod_params.disable_11be))) 3726 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3727 } else if (vif->type == NL80211_IFTYPE_STATION) { 3728 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3729 3730 callbacks->mac_ctxt_changed(mvm, vif, false); 3731 3732 if (!mvm->mld_api_is_used) 3733 goto out; 3734 3735 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3736 struct ieee80211_bss_conf *link_conf = 3737 link_conf_dereference_protected(vif, link_id); 3738 3739 if (WARN_ON(!link_conf)) 3740 return -EINVAL; 3741 if (!mvmvif->link[link_id]) 3742 continue; 3743 3744 iwl_mvm_link_changed(mvm, vif, link_conf, 3745 LINK_CONTEXT_MODIFY_ALL & 3746 ~LINK_CONTEXT_MODIFY_ACTIVE, 3747 true); 3748 } 3749 } 3750 3751 out: 3752 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3753 3754 return callbacks->update_sta(mvm, vif, sta); 3755 } 3756 3757 static int 3758 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3759 struct ieee80211_vif *vif, 3760 struct ieee80211_sta *sta, 3761 const struct iwl_mvm_sta_state_ops *callbacks) 3762 { 3763 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3764 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3765 3766 lockdep_assert_held(&mvm->mutex); 3767 3768 /* we don't support TDLS during DCM */ 3769 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3770 iwl_mvm_teardown_tdls_peers(mvm); 3771 3772 if (sta->tdls) { 3773 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3774 NL80211_TDLS_ENABLE_LINK); 3775 } else { 3776 /* enable beacon filtering */ 3777 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3778 3779 mvmvif->authorized = 1; 3780 3781 callbacks->mac_ctxt_changed(mvm, vif, false); 3782 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3783 3784 /* when client is authorized (AP station marked as such), 3785 * try to enable more links 3786 */ 3787 if (vif->type == NL80211_IFTYPE_STATION && 3788 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3789 iwl_mvm_mld_select_links(mvm, vif, false); 3790 } 3791 3792 mvm_sta->authorized = true; 3793 3794 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3795 3796 /* MFP is set by default before the station is authorized. 3797 * Clear it here in case it's not used. 3798 */ 3799 if (!sta->mfp) 3800 return callbacks->update_sta(mvm, vif, sta); 3801 3802 return 0; 3803 } 3804 3805 static int 3806 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3807 struct ieee80211_vif *vif, 3808 struct ieee80211_sta *sta, 3809 const struct iwl_mvm_sta_state_ops *callbacks) 3810 { 3811 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3812 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3813 3814 lockdep_assert_held(&mvm->mutex); 3815 3816 mvmsta->authorized = false; 3817 3818 /* once we move into assoc state, need to update rate scale to 3819 * disable using wide bandwidth 3820 */ 3821 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3822 3823 if (!sta->tdls) { 3824 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3825 * yet to avoid sending high prio again for a little 3826 * time. 3827 */ 3828 mvmvif->authorized = 0; 3829 3830 /* disable beacon filtering */ 3831 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3832 } 3833 3834 return 0; 3835 } 3836 3837 /* Common part for MLD and non-MLD modes */ 3838 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3839 struct ieee80211_vif *vif, 3840 struct ieee80211_sta *sta, 3841 enum ieee80211_sta_state old_state, 3842 enum ieee80211_sta_state new_state, 3843 const struct iwl_mvm_sta_state_ops *callbacks) 3844 { 3845 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3846 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3847 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3848 struct ieee80211_link_sta *link_sta; 3849 unsigned int link_id; 3850 int ret; 3851 3852 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3853 sta->addr, old_state, new_state); 3854 3855 /* 3856 * If we are in a STA removal flow and in DQA mode: 3857 * 3858 * This is after the sync_rcu part, so the queues have already been 3859 * flushed. No more TXs on their way in mac80211's path, and no more in 3860 * the queues. 3861 * Also, we won't be getting any new TX frames for this station. 3862 * What we might have are deferred TX frames that need to be taken care 3863 * of. 3864 * 3865 * Drop any still-queued deferred-frame before removing the STA, and 3866 * make sure the worker is no longer handling frames for this STA. 3867 */ 3868 if (old_state == IEEE80211_STA_NONE && 3869 new_state == IEEE80211_STA_NOTEXIST) { 3870 flush_work(&mvm->add_stream_wk); 3871 3872 /* 3873 * No need to make sure deferred TX indication is off since the 3874 * worker will already remove it if it was on 3875 */ 3876 3877 /* 3878 * Additionally, reset the 40 MHz capability if we disconnected 3879 * from the AP now. 3880 */ 3881 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3882 3883 /* Also free dup data just in case any assertions below fail */ 3884 kfree(mvm_sta->dup_data); 3885 } 3886 3887 mutex_lock(&mvm->mutex); 3888 3889 /* this would be a mac80211 bug ... but don't crash, unless we had a 3890 * firmware crash while we were activating a link, in which case it is 3891 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3892 * recovery flow since we spit tons of error messages anyway. 3893 */ 3894 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3895 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 3896 !mvmvif->link[link_id]->phy_ctxt)) { 3897 mutex_unlock(&mvm->mutex); 3898 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3899 &mvm->status) ? 0 : -EINVAL; 3900 } 3901 } 3902 3903 /* track whether or not the station is associated */ 3904 mvm_sta->sta_state = new_state; 3905 3906 if (old_state == IEEE80211_STA_NOTEXIST && 3907 new_state == IEEE80211_STA_NONE) { 3908 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3909 callbacks); 3910 if (ret < 0) 3911 goto out_unlock; 3912 } else if (old_state == IEEE80211_STA_NONE && 3913 new_state == IEEE80211_STA_AUTH) { 3914 /* 3915 * EBS may be disabled due to previous failures reported by FW. 3916 * Reset EBS status here assuming environment has been changed. 3917 */ 3918 mvm->last_ebs_successful = true; 3919 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3920 ret = 0; 3921 } else if (old_state == IEEE80211_STA_AUTH && 3922 new_state == IEEE80211_STA_ASSOC) { 3923 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3924 callbacks); 3925 } else if (old_state == IEEE80211_STA_ASSOC && 3926 new_state == IEEE80211_STA_AUTHORIZED) { 3927 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3928 callbacks); 3929 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3930 new_state == IEEE80211_STA_ASSOC) { 3931 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3932 callbacks); 3933 } else if (old_state == IEEE80211_STA_ASSOC && 3934 new_state == IEEE80211_STA_AUTH) { 3935 if (vif->type == NL80211_IFTYPE_AP) { 3936 mvmvif->ap_assoc_sta_count--; 3937 callbacks->mac_ctxt_changed(mvm, vif, false); 3938 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3939 iwl_mvm_stop_session_protection(mvm, vif); 3940 ret = 0; 3941 } else if (old_state == IEEE80211_STA_AUTH && 3942 new_state == IEEE80211_STA_NONE) { 3943 ret = 0; 3944 } else if (old_state == IEEE80211_STA_NONE && 3945 new_state == IEEE80211_STA_NOTEXIST) { 3946 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3947 iwl_mvm_stop_session_protection(mvm, vif); 3948 mvmvif->ap_sta = NULL; 3949 } 3950 ret = callbacks->rm_sta(mvm, vif, sta); 3951 if (sta->tdls) { 3952 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3953 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3954 NL80211_TDLS_DISABLE_LINK); 3955 } 3956 3957 if (unlikely(ret && 3958 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3959 &mvm->status))) 3960 ret = 0; 3961 } else { 3962 ret = -EIO; 3963 } 3964 out_unlock: 3965 mutex_unlock(&mvm->mutex); 3966 3967 if (sta->tdls && ret == 0) { 3968 if (old_state == IEEE80211_STA_NOTEXIST && 3969 new_state == IEEE80211_STA_NONE) 3970 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3971 else if (old_state == IEEE80211_STA_NONE && 3972 new_state == IEEE80211_STA_NOTEXIST) 3973 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3974 } 3975 3976 return ret; 3977 } 3978 3979 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3980 { 3981 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3982 3983 mvm->rts_threshold = value; 3984 3985 return 0; 3986 } 3987 3988 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3989 struct ieee80211_sta *sta, u32 changed) 3990 { 3991 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3992 3993 if (changed & (IEEE80211_RC_BW_CHANGED | 3994 IEEE80211_RC_SUPP_RATES_CHANGED | 3995 IEEE80211_RC_NSS_CHANGED)) 3996 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3997 3998 if (vif->type == NL80211_IFTYPE_STATION && 3999 changed & IEEE80211_RC_NSS_CHANGED) 4000 iwl_mvm_sf_update(mvm, vif, false); 4001 } 4002 4003 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4004 struct ieee80211_vif *vif, 4005 unsigned int link_id, u16 ac, 4006 const struct ieee80211_tx_queue_params *params) 4007 { 4008 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4009 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4010 4011 mvmvif->deflink.queue_params[ac] = *params; 4012 4013 /* 4014 * No need to update right away, we'll get BSS_CHANGED_QOS 4015 * The exception is P2P_DEVICE interface which needs immediate update. 4016 */ 4017 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4018 int ret; 4019 4020 mutex_lock(&mvm->mutex); 4021 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4022 mutex_unlock(&mvm->mutex); 4023 return ret; 4024 } 4025 return 0; 4026 } 4027 4028 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4029 struct ieee80211_vif *vif, 4030 struct ieee80211_prep_tx_info *info) 4031 { 4032 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4033 4034 mutex_lock(&mvm->mutex); 4035 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4036 mutex_unlock(&mvm->mutex); 4037 } 4038 4039 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4040 struct ieee80211_vif *vif, 4041 struct ieee80211_prep_tx_info *info) 4042 { 4043 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4044 4045 /* for successful cases (auth/assoc), don't cancel session protection */ 4046 if (info->success) 4047 return; 4048 4049 mutex_lock(&mvm->mutex); 4050 iwl_mvm_stop_session_protection(mvm, vif); 4051 mutex_unlock(&mvm->mutex); 4052 } 4053 4054 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4055 struct ieee80211_vif *vif, 4056 struct cfg80211_sched_scan_request *req, 4057 struct ieee80211_scan_ies *ies) 4058 { 4059 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4060 4061 int ret; 4062 4063 mutex_lock(&mvm->mutex); 4064 4065 if (!vif->cfg.idle) { 4066 ret = -EBUSY; 4067 goto out; 4068 } 4069 4070 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4071 4072 out: 4073 mutex_unlock(&mvm->mutex); 4074 return ret; 4075 } 4076 4077 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4078 struct ieee80211_vif *vif) 4079 { 4080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4081 int ret; 4082 4083 mutex_lock(&mvm->mutex); 4084 4085 /* Due to a race condition, it's possible that mac80211 asks 4086 * us to stop a sched_scan when it's already stopped. This 4087 * can happen, for instance, if we stopped the scan ourselves, 4088 * called ieee80211_sched_scan_stopped() and the userspace called 4089 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4090 * could run. To handle this, simply return if the scan is 4091 * not running. 4092 */ 4093 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4094 mutex_unlock(&mvm->mutex); 4095 return 0; 4096 } 4097 4098 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4099 mutex_unlock(&mvm->mutex); 4100 iwl_mvm_wait_for_async_handlers(mvm); 4101 4102 return ret; 4103 } 4104 4105 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4106 enum set_key_cmd cmd, 4107 struct ieee80211_vif *vif, 4108 struct ieee80211_sta *sta, 4109 struct ieee80211_key_conf *key) 4110 { 4111 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4112 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4113 struct iwl_mvm_sta *mvmsta = NULL; 4114 struct iwl_mvm_key_pn *ptk_pn = NULL; 4115 int keyidx = key->keyidx; 4116 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4117 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4118 int ret, i; 4119 u8 key_offset; 4120 4121 if (sta) 4122 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4123 4124 switch (key->cipher) { 4125 case WLAN_CIPHER_SUITE_TKIP: 4126 if (!mvm->trans->trans_cfg->gen2) { 4127 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4128 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4129 } else if (vif->type == NL80211_IFTYPE_STATION) { 4130 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4131 } else { 4132 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4133 return -EOPNOTSUPP; 4134 } 4135 break; 4136 case WLAN_CIPHER_SUITE_CCMP: 4137 case WLAN_CIPHER_SUITE_GCMP: 4138 case WLAN_CIPHER_SUITE_GCMP_256: 4139 if (!iwl_mvm_has_new_tx_api(mvm)) 4140 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4141 break; 4142 case WLAN_CIPHER_SUITE_AES_CMAC: 4143 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4144 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4145 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4146 break; 4147 case WLAN_CIPHER_SUITE_WEP40: 4148 case WLAN_CIPHER_SUITE_WEP104: 4149 if (vif->type == NL80211_IFTYPE_STATION) 4150 break; 4151 if (iwl_mvm_has_new_tx_api(mvm)) 4152 return -EOPNOTSUPP; 4153 /* support HW crypto on TX */ 4154 return 0; 4155 default: 4156 return -EOPNOTSUPP; 4157 } 4158 4159 switch (cmd) { 4160 case SET_KEY: 4161 if (vif->type == NL80211_IFTYPE_STATION && 4162 (keyidx == 6 || keyidx == 7)) 4163 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4164 key); 4165 4166 if ((vif->type == NL80211_IFTYPE_ADHOC || 4167 vif->type == NL80211_IFTYPE_AP) && !sta) { 4168 /* 4169 * GTK on AP interface is a TX-only key, return 0; 4170 * on IBSS they're per-station and because we're lazy 4171 * we don't support them for RX, so do the same. 4172 * CMAC/GMAC in AP/IBSS modes must be done in software 4173 * on older NICs. 4174 * 4175 * Except, of course, beacon protection - it must be 4176 * offloaded since we just set a beacon template, and 4177 * then we must also offload the IGTK (not just BIGTK) 4178 * for firmware reasons. 4179 * 4180 * So just check for beacon protection - if we don't 4181 * have it we cannot get here with keyidx >= 6, and 4182 * if we do have it we need to send the key to FW in 4183 * all cases (CMAC/GMAC). 4184 */ 4185 if (!wiphy_ext_feature_isset(hw->wiphy, 4186 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4187 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4188 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4189 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4190 ret = -EOPNOTSUPP; 4191 break; 4192 } 4193 4194 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4195 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4196 !iwl_mvm_has_new_tx_api(mvm)) { 4197 key->hw_key_idx = STA_KEY_IDX_INVALID; 4198 ret = 0; 4199 break; 4200 } 4201 4202 if (!mvmvif->ap_ibss_active) { 4203 for (i = 0; 4204 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4205 i++) { 4206 if (!mvmvif->ap_early_keys[i]) { 4207 mvmvif->ap_early_keys[i] = key; 4208 break; 4209 } 4210 } 4211 4212 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4213 ret = -ENOSPC; 4214 else 4215 ret = 0; 4216 4217 break; 4218 } 4219 } 4220 4221 /* During FW restart, in order to restore the state as it was, 4222 * don't try to reprogram keys we previously failed for. 4223 */ 4224 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4225 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4226 IWL_DEBUG_MAC80211(mvm, 4227 "skip invalid idx key programming during restart\n"); 4228 ret = 0; 4229 break; 4230 } 4231 4232 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4233 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4234 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4235 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4236 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4237 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4238 struct ieee80211_key_seq seq; 4239 int tid, q; 4240 4241 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4242 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4243 mvm->trans->num_rx_queues), 4244 GFP_KERNEL); 4245 if (!ptk_pn) { 4246 ret = -ENOMEM; 4247 break; 4248 } 4249 4250 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4251 ieee80211_get_key_rx_seq(key, tid, &seq); 4252 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4253 memcpy(ptk_pn->q[q].pn[tid], 4254 seq.ccmp.pn, 4255 IEEE80211_CCMP_PN_LEN); 4256 } 4257 4258 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4259 } 4260 4261 /* in HW restart reuse the index, otherwise request a new one */ 4262 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4263 key_offset = key->hw_key_idx; 4264 else 4265 key_offset = STA_KEY_IDX_INVALID; 4266 4267 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4268 mvmsta->pairwise_cipher = key->cipher; 4269 4270 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4271 sta ? sta->addr : NULL, key->keyidx); 4272 4273 if (sec_key_ver) 4274 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4275 else 4276 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4277 4278 if (ret) { 4279 IWL_WARN(mvm, "set key failed\n"); 4280 key->hw_key_idx = STA_KEY_IDX_INVALID; 4281 if (ptk_pn) { 4282 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4283 kfree(ptk_pn); 4284 } 4285 /* 4286 * can't add key for RX, but we don't need it 4287 * in the device for TX so still return 0, 4288 * unless we have new TX API where we cannot 4289 * put key material into the TX_CMD 4290 */ 4291 if (iwl_mvm_has_new_tx_api(mvm)) 4292 ret = -EOPNOTSUPP; 4293 else 4294 ret = 0; 4295 } 4296 4297 break; 4298 case DISABLE_KEY: 4299 if (vif->type == NL80211_IFTYPE_STATION && 4300 (keyidx == 6 || keyidx == 7)) 4301 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4302 NULL); 4303 4304 ret = -ENOENT; 4305 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4306 if (mvmvif->ap_early_keys[i] == key) { 4307 mvmvif->ap_early_keys[i] = NULL; 4308 ret = 0; 4309 } 4310 } 4311 4312 /* found in pending list - don't do anything else */ 4313 if (ret == 0) 4314 break; 4315 4316 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4317 ret = 0; 4318 break; 4319 } 4320 4321 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4322 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4323 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4324 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4325 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4326 ptk_pn = rcu_dereference_protected( 4327 mvmsta->ptk_pn[keyidx], 4328 lockdep_is_held(&mvm->mutex)); 4329 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4330 if (ptk_pn) 4331 kfree_rcu(ptk_pn, rcu_head); 4332 } 4333 4334 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4335 if (sec_key_ver) 4336 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4337 else 4338 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4339 break; 4340 default: 4341 ret = -EINVAL; 4342 } 4343 4344 return ret; 4345 } 4346 4347 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4348 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4349 struct ieee80211_key_conf *key) 4350 { 4351 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4352 int ret; 4353 4354 mutex_lock(&mvm->mutex); 4355 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4356 mutex_unlock(&mvm->mutex); 4357 4358 return ret; 4359 } 4360 4361 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4362 struct ieee80211_vif *vif, 4363 struct ieee80211_key_conf *keyconf, 4364 struct ieee80211_sta *sta, 4365 u32 iv32, u16 *phase1key) 4366 { 4367 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4368 4369 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4370 return; 4371 4372 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4373 } 4374 4375 4376 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4377 struct iwl_rx_packet *pkt, void *data) 4378 { 4379 struct iwl_mvm *mvm = 4380 container_of(notif_wait, struct iwl_mvm, notif_wait); 4381 struct iwl_hs20_roc_res *resp; 4382 int resp_len = iwl_rx_packet_payload_len(pkt); 4383 struct iwl_mvm_time_event_data *te_data = data; 4384 4385 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4386 return true; 4387 4388 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4389 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4390 return true; 4391 } 4392 4393 resp = (void *)pkt->data; 4394 4395 IWL_DEBUG_TE(mvm, 4396 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4397 resp->status, resp->event_unique_id); 4398 4399 te_data->uid = le32_to_cpu(resp->event_unique_id); 4400 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4401 te_data->uid); 4402 4403 spin_lock_bh(&mvm->time_event_lock); 4404 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4405 spin_unlock_bh(&mvm->time_event_lock); 4406 4407 return true; 4408 } 4409 4410 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4411 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4412 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4413 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4414 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4415 4416 static void iwl_mvm_roc_duration_and_delay(struct ieee80211_vif *vif, 4417 u32 duration_ms, 4418 u32 *duration_tu, 4419 u32 *delay) 4420 { 4421 u32 dtim_interval = vif->bss_conf.dtim_period * 4422 vif->bss_conf.beacon_int; 4423 4424 *delay = AUX_ROC_MIN_DELAY; 4425 *duration_tu = MSEC_TO_TU(duration_ms); 4426 4427 /* 4428 * If we are associated we want the delay time to be at least one 4429 * dtim interval so that the FW can wait until after the DTIM and 4430 * then start the time event, this will potentially allow us to 4431 * remain off-channel for the max duration. 4432 * Since we want to use almost a whole dtim interval we would also 4433 * like the delay to be for 2-3 dtim intervals, in case there are 4434 * other time events with higher priority. 4435 */ 4436 if (vif->cfg.assoc) { 4437 *delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4438 /* We cannot remain off-channel longer than the DTIM interval */ 4439 if (dtim_interval <= *duration_tu) { 4440 *duration_tu = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4441 if (*duration_tu <= AUX_ROC_MIN_DURATION) 4442 *duration_tu = dtim_interval - 4443 AUX_ROC_MIN_SAFETY_BUFFER; 4444 } 4445 } 4446 } 4447 4448 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4449 struct ieee80211_channel *channel, 4450 struct ieee80211_vif *vif, 4451 int duration) 4452 { 4453 int res; 4454 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4455 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4456 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4457 struct iwl_notification_wait wait_time_event; 4458 u32 req_dur, delay; 4459 struct iwl_hs20_roc_req aux_roc_req = { 4460 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4461 .id_and_color = 4462 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4463 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4464 }; 4465 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4466 &aux_roc_req.channel_info); 4467 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4468 4469 /* Set the channel info data */ 4470 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4471 iwl_mvm_phy_band_from_nl80211(channel->band), 4472 IWL_PHY_CHANNEL_MODE20, 4473 0); 4474 4475 /* Set the time and duration */ 4476 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4477 4478 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4479 tail->duration = cpu_to_le32(req_dur); 4480 tail->apply_time_max_delay = cpu_to_le32(delay); 4481 4482 IWL_DEBUG_TE(mvm, 4483 "ROC: Requesting to remain on channel %u for %ums\n", 4484 channel->hw_value, req_dur); 4485 IWL_DEBUG_TE(mvm, 4486 "\t(requested = %ums, max_delay = %ums)\n", 4487 duration, delay); 4488 4489 /* Set the node address */ 4490 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4491 4492 lockdep_assert_held(&mvm->mutex); 4493 4494 spin_lock_bh(&mvm->time_event_lock); 4495 4496 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4497 spin_unlock_bh(&mvm->time_event_lock); 4498 return -EIO; 4499 } 4500 4501 te_data->vif = vif; 4502 te_data->duration = duration; 4503 te_data->id = HOT_SPOT_CMD; 4504 4505 spin_unlock_bh(&mvm->time_event_lock); 4506 4507 /* 4508 * Use a notification wait, which really just processes the 4509 * command response and doesn't wait for anything, in order 4510 * to be able to process the response and get the UID inside 4511 * the RX path. Using CMD_WANT_SKB doesn't work because it 4512 * stores the buffer and then wakes up this thread, by which 4513 * time another notification (that the time event started) 4514 * might already be processed unsuccessfully. 4515 */ 4516 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4517 time_event_response, 4518 ARRAY_SIZE(time_event_response), 4519 iwl_mvm_rx_aux_roc, te_data); 4520 4521 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4522 &aux_roc_req); 4523 4524 if (res) { 4525 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4526 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4527 goto out_clear_te; 4528 } 4529 4530 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4531 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4532 /* should never fail */ 4533 WARN_ON_ONCE(res); 4534 4535 if (res) { 4536 out_clear_te: 4537 spin_lock_bh(&mvm->time_event_lock); 4538 iwl_mvm_te_clear_data(mvm, te_data); 4539 spin_unlock_bh(&mvm->time_event_lock); 4540 } 4541 4542 return res; 4543 } 4544 4545 static int iwl_mvm_roc_add_cmd(struct iwl_mvm *mvm, 4546 struct ieee80211_channel *channel, 4547 struct ieee80211_vif *vif, 4548 int duration, u32 activity) 4549 { 4550 int res; 4551 u32 duration_tu, delay; 4552 struct iwl_roc_req roc_req = { 4553 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4554 .activity = cpu_to_le32(activity), 4555 .sta_id = cpu_to_le32(mvm->aux_sta.sta_id), 4556 }; 4557 4558 lockdep_assert_held(&mvm->mutex); 4559 4560 /* Set the channel info data */ 4561 iwl_mvm_set_chan_info(mvm, &roc_req.channel_info, 4562 channel->hw_value, 4563 iwl_mvm_phy_band_from_nl80211(channel->band), 4564 IWL_PHY_CHANNEL_MODE20, 0); 4565 4566 iwl_mvm_roc_duration_and_delay(vif, duration, &duration_tu, 4567 &delay); 4568 roc_req.duration = cpu_to_le32(duration_tu); 4569 roc_req.max_delay = cpu_to_le32(delay); 4570 4571 IWL_DEBUG_TE(mvm, 4572 "\t(requested = %ums, max_delay = %ums)\n", 4573 duration, delay); 4574 IWL_DEBUG_TE(mvm, 4575 "Requesting to remain on channel %u for %utu\n", 4576 channel->hw_value, duration_tu); 4577 4578 /* Set the node address */ 4579 memcpy(roc_req.node_addr, vif->addr, ETH_ALEN); 4580 4581 res = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, ROC_CMD), 4582 0, sizeof(roc_req), &roc_req); 4583 4584 return res; 4585 } 4586 4587 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4588 { 4589 int ret = 0; 4590 4591 lockdep_assert_held(&mvm->mutex); 4592 4593 if (!fw_has_capa(&mvm->fw->ucode_capa, 4594 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4595 IWL_ERR(mvm, "hotspot not supported\n"); 4596 return -EINVAL; 4597 } 4598 4599 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4600 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4601 WARN(ret, "Failed to allocate aux station"); 4602 } 4603 4604 return ret; 4605 } 4606 4607 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4608 { 4609 int ret; 4610 4611 lockdep_assert_held(&mvm->mutex); 4612 4613 ret = iwl_mvm_binding_add_vif(mvm, vif); 4614 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4615 return ret; 4616 4617 /* The station and queue allocation must be done only after the binding 4618 * is done, as otherwise the FW might incorrectly configure its state. 4619 */ 4620 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4621 } 4622 4623 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4624 struct ieee80211_vif *vif, 4625 struct ieee80211_channel *channel, 4626 int duration, 4627 enum ieee80211_roc_type type) 4628 { 4629 static const struct iwl_mvm_roc_ops ops = { 4630 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4631 .link = iwl_mvm_roc_link, 4632 }; 4633 4634 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4635 } 4636 4637 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4638 struct ieee80211_channel *channel, 4639 struct ieee80211_vif *vif, 4640 int duration) 4641 { 4642 int ret; 4643 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4644 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4645 IWL_FW_CMD_VER_UNKNOWN); 4646 4647 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4648 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4649 } else if (fw_ver == 3) { 4650 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4651 ROC_ACTIVITY_HOTSPOT); 4652 } else { 4653 ret = -EOPNOTSUPP; 4654 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4655 } 4656 4657 return ret; 4658 } 4659 4660 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4661 struct ieee80211_vif *vif, 4662 struct ieee80211_channel *channel) 4663 { 4664 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4665 struct cfg80211_chan_def chandef; 4666 int i; 4667 4668 lockdep_assert_held(&mvm->mutex); 4669 4670 if (mvmvif->deflink.phy_ctxt && 4671 channel == mvmvif->deflink.phy_ctxt->channel) 4672 return 0; 4673 4674 /* Try using a PHY context that is already in use */ 4675 for (i = 0; i < NUM_PHY_CTX; i++) { 4676 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4677 4678 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4679 continue; 4680 4681 if (channel == phy_ctxt->channel) { 4682 if (mvmvif->deflink.phy_ctxt) 4683 iwl_mvm_phy_ctxt_unref(mvm, 4684 mvmvif->deflink.phy_ctxt); 4685 4686 mvmvif->deflink.phy_ctxt = phy_ctxt; 4687 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4688 return 0; 4689 } 4690 } 4691 4692 /* We already have a phy_ctxt, but it's not on the right channel */ 4693 if (mvmvif->deflink.phy_ctxt) 4694 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4695 4696 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4697 if (!mvmvif->deflink.phy_ctxt) 4698 return -ENOSPC; 4699 4700 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4701 4702 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4703 &chandef, 1, 1); 4704 } 4705 4706 /* Execute the common part for MLD and non-MLD modes */ 4707 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4708 struct ieee80211_channel *channel, int duration, 4709 enum ieee80211_roc_type type, 4710 const struct iwl_mvm_roc_ops *ops) 4711 { 4712 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4713 u32 lmac_id; 4714 int ret; 4715 4716 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4717 duration, type); 4718 4719 /* 4720 * Flush the done work, just in case it's still pending, so that 4721 * the work it does can complete and we can accept new frames. 4722 */ 4723 flush_work(&mvm->roc_done_wk); 4724 4725 mutex_lock(&mvm->mutex); 4726 4727 switch (vif->type) { 4728 case NL80211_IFTYPE_STATION: 4729 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4730 4731 /* Use aux roc framework (HS20) */ 4732 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4733 if (!ret) 4734 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4735 goto out_unlock; 4736 case NL80211_IFTYPE_P2P_DEVICE: 4737 /* handle below */ 4738 break; 4739 default: 4740 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4741 ret = -EINVAL; 4742 goto out_unlock; 4743 } 4744 4745 4746 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4747 if (ret) 4748 goto out_unlock; 4749 4750 ret = ops->link(mvm, vif); 4751 if (ret) 4752 goto out_unlock; 4753 4754 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4755 out_unlock: 4756 mutex_unlock(&mvm->mutex); 4757 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4758 return ret; 4759 } 4760 4761 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4762 struct ieee80211_vif *vif) 4763 { 4764 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4765 4766 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4767 4768 mutex_lock(&mvm->mutex); 4769 iwl_mvm_stop_roc(mvm, vif); 4770 mutex_unlock(&mvm->mutex); 4771 4772 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4773 return 0; 4774 } 4775 4776 struct iwl_mvm_ftm_responder_iter_data { 4777 bool responder; 4778 struct ieee80211_chanctx_conf *ctx; 4779 }; 4780 4781 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4782 struct ieee80211_vif *vif) 4783 { 4784 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4785 4786 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4787 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4788 data->responder = true; 4789 } 4790 4791 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4792 struct ieee80211_chanctx_conf *ctx) 4793 { 4794 struct iwl_mvm_ftm_responder_iter_data data = { 4795 .responder = false, 4796 .ctx = ctx, 4797 }; 4798 4799 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4800 IEEE80211_IFACE_ITER_NORMAL, 4801 iwl_mvm_ftm_responder_chanctx_iter, 4802 &data); 4803 return data.responder; 4804 } 4805 4806 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4807 struct ieee80211_chanctx_conf *ctx) 4808 { 4809 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4810 struct iwl_mvm_phy_ctxt *phy_ctxt; 4811 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4812 iwl_mvm_enable_fils(mvm, ctx); 4813 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4814 int ret; 4815 4816 lockdep_assert_held(&mvm->mutex); 4817 4818 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4819 4820 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4821 if (!phy_ctxt) { 4822 ret = -ENOSPC; 4823 goto out; 4824 } 4825 4826 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, 4827 ctx->rx_chains_static, 4828 ctx->rx_chains_dynamic); 4829 if (ret) { 4830 IWL_ERR(mvm, "Failed to add PHY context\n"); 4831 goto out; 4832 } 4833 4834 *phy_ctxt_id = phy_ctxt->id; 4835 out: 4836 return ret; 4837 } 4838 4839 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4840 struct ieee80211_chanctx_conf *ctx) 4841 { 4842 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4843 int ret; 4844 4845 mutex_lock(&mvm->mutex); 4846 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4847 mutex_unlock(&mvm->mutex); 4848 4849 return ret; 4850 } 4851 4852 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4853 struct ieee80211_chanctx_conf *ctx) 4854 { 4855 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4856 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4857 4858 lockdep_assert_held(&mvm->mutex); 4859 4860 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4861 } 4862 4863 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4864 struct ieee80211_chanctx_conf *ctx) 4865 { 4866 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4867 4868 mutex_lock(&mvm->mutex); 4869 __iwl_mvm_remove_chanctx(mvm, ctx); 4870 mutex_unlock(&mvm->mutex); 4871 } 4872 4873 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4874 struct ieee80211_chanctx_conf *ctx, u32 changed) 4875 { 4876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4877 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4878 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4879 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4880 iwl_mvm_enable_fils(mvm, ctx); 4881 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4882 4883 if (WARN_ONCE((phy_ctxt->ref > 1) && 4884 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4885 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4886 IEEE80211_CHANCTX_CHANGE_RADAR | 4887 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4888 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4889 phy_ctxt->ref, changed)) 4890 return; 4891 4892 mutex_lock(&mvm->mutex); 4893 4894 /* we are only changing the min_width, may be a noop */ 4895 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4896 if (phy_ctxt->width == def->width) 4897 goto out_unlock; 4898 4899 /* we are just toggling between 20_NOHT and 20 */ 4900 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4901 def->width <= NL80211_CHAN_WIDTH_20) 4902 goto out_unlock; 4903 } 4904 4905 iwl_mvm_bt_coex_vif_change(mvm); 4906 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4907 ctx->rx_chains_static, 4908 ctx->rx_chains_dynamic); 4909 4910 out_unlock: 4911 mutex_unlock(&mvm->mutex); 4912 } 4913 4914 /* 4915 * This function executes the common part for MLD and non-MLD modes. 4916 * 4917 * Returns true if we're done assigning the chanctx 4918 * (either on failure or success) 4919 */ 4920 static bool 4921 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4922 struct ieee80211_vif *vif, 4923 struct ieee80211_chanctx_conf *ctx, 4924 bool switching_chanctx, int *ret) 4925 { 4926 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4927 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4928 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4929 4930 lockdep_assert_held(&mvm->mutex); 4931 4932 mvmvif->deflink.phy_ctxt = phy_ctxt; 4933 4934 switch (vif->type) { 4935 case NL80211_IFTYPE_AP: 4936 /* only needed if we're switching chanctx (i.e. during CSA) */ 4937 if (switching_chanctx) { 4938 mvmvif->ap_ibss_active = true; 4939 break; 4940 } 4941 fallthrough; 4942 case NL80211_IFTYPE_ADHOC: 4943 /* 4944 * The AP binding flow is handled as part of the start_ap flow 4945 * (in bss_info_changed), similarly for IBSS. 4946 */ 4947 *ret = 0; 4948 return true; 4949 case NL80211_IFTYPE_STATION: 4950 break; 4951 case NL80211_IFTYPE_MONITOR: 4952 /* always disable PS when a monitor interface is active */ 4953 mvmvif->ps_disabled = true; 4954 break; 4955 default: 4956 *ret = -EINVAL; 4957 return true; 4958 } 4959 return false; 4960 } 4961 4962 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4963 struct ieee80211_vif *vif, 4964 struct ieee80211_bss_conf *link_conf, 4965 struct ieee80211_chanctx_conf *ctx, 4966 bool switching_chanctx) 4967 { 4968 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4969 int ret; 4970 4971 if (WARN_ON(!link_conf)) 4972 return -EINVAL; 4973 4974 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4975 switching_chanctx, &ret)) 4976 goto out; 4977 4978 ret = iwl_mvm_binding_add_vif(mvm, vif); 4979 if (ret) 4980 goto out; 4981 4982 /* 4983 * Power state must be updated before quotas, 4984 * otherwise fw will complain. 4985 */ 4986 iwl_mvm_power_update_mac(mvm); 4987 4988 /* Setting the quota at this stage is only required for monitor 4989 * interfaces. For the other types, the bss_info changed flow 4990 * will handle quota settings. 4991 */ 4992 if (vif->type == NL80211_IFTYPE_MONITOR) { 4993 mvmvif->monitor_active = true; 4994 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4995 if (ret) 4996 goto out_remove_binding; 4997 4998 ret = iwl_mvm_add_snif_sta(mvm, vif); 4999 if (ret) 5000 goto out_remove_binding; 5001 5002 } 5003 5004 /* Handle binding during CSA */ 5005 if (vif->type == NL80211_IFTYPE_AP) { 5006 iwl_mvm_update_quotas(mvm, false, NULL); 5007 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5008 } 5009 5010 if (vif->type == NL80211_IFTYPE_STATION) { 5011 if (!switching_chanctx) { 5012 mvmvif->csa_bcn_pending = false; 5013 goto out; 5014 } 5015 5016 mvmvif->csa_bcn_pending = true; 5017 5018 if (!fw_has_capa(&mvm->fw->ucode_capa, 5019 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5020 u32 duration = 5 * vif->bss_conf.beacon_int; 5021 5022 /* Protect the session to make sure we hear the first 5023 * beacon on the new channel. 5024 */ 5025 iwl_mvm_protect_session(mvm, vif, duration, duration, 5026 vif->bss_conf.beacon_int / 2, 5027 true); 5028 } 5029 5030 iwl_mvm_update_quotas(mvm, false, NULL); 5031 } 5032 5033 goto out; 5034 5035 out_remove_binding: 5036 iwl_mvm_binding_remove_vif(mvm, vif); 5037 iwl_mvm_power_update_mac(mvm); 5038 out: 5039 if (ret) 5040 mvmvif->deflink.phy_ctxt = NULL; 5041 return ret; 5042 } 5043 5044 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5045 struct ieee80211_vif *vif, 5046 struct ieee80211_bss_conf *link_conf, 5047 struct ieee80211_chanctx_conf *ctx) 5048 { 5049 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5050 int ret; 5051 5052 mutex_lock(&mvm->mutex); 5053 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5054 mutex_unlock(&mvm->mutex); 5055 5056 return ret; 5057 } 5058 5059 /* 5060 * This function executes the common part for MLD and non-MLD modes. 5061 * 5062 * Returns if chanctx unassign chanctx is done 5063 * (either on failure or success) 5064 */ 5065 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5066 struct ieee80211_vif *vif, 5067 bool switching_chanctx) 5068 { 5069 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5070 5071 lockdep_assert_held(&mvm->mutex); 5072 iwl_mvm_remove_time_event(mvm, mvmvif, 5073 &mvmvif->time_event_data); 5074 5075 switch (vif->type) { 5076 case NL80211_IFTYPE_ADHOC: 5077 return true; 5078 case NL80211_IFTYPE_MONITOR: 5079 mvmvif->monitor_active = false; 5080 mvmvif->ps_disabled = false; 5081 break; 5082 case NL80211_IFTYPE_AP: 5083 /* This part is triggered only during CSA */ 5084 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5085 return true; 5086 5087 mvmvif->csa_countdown = false; 5088 5089 /* Set CS bit on all the stations */ 5090 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5091 5092 /* Save blocked iface, the timeout is set on the next beacon */ 5093 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5094 5095 mvmvif->ap_ibss_active = false; 5096 break; 5097 default: 5098 break; 5099 } 5100 return false; 5101 } 5102 5103 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5104 struct ieee80211_vif *vif, 5105 struct ieee80211_bss_conf *link_conf, 5106 struct ieee80211_chanctx_conf *ctx, 5107 bool switching_chanctx) 5108 { 5109 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5110 struct ieee80211_vif *disabled_vif = NULL; 5111 5112 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5113 goto out; 5114 5115 if (vif->type == NL80211_IFTYPE_MONITOR) 5116 iwl_mvm_rm_snif_sta(mvm, vif); 5117 5118 5119 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5120 disabled_vif = vif; 5121 if (!fw_has_capa(&mvm->fw->ucode_capa, 5122 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5123 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5124 } 5125 5126 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5127 iwl_mvm_binding_remove_vif(mvm, vif); 5128 5129 out: 5130 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5131 switching_chanctx) 5132 return; 5133 mvmvif->deflink.phy_ctxt = NULL; 5134 iwl_mvm_power_update_mac(mvm); 5135 } 5136 5137 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5138 struct ieee80211_vif *vif, 5139 struct ieee80211_bss_conf *link_conf, 5140 struct ieee80211_chanctx_conf *ctx) 5141 { 5142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5143 5144 mutex_lock(&mvm->mutex); 5145 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5146 mutex_unlock(&mvm->mutex); 5147 } 5148 5149 static int 5150 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5151 struct ieee80211_vif_chanctx_switch *vifs, 5152 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5153 { 5154 int ret; 5155 5156 mutex_lock(&mvm->mutex); 5157 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5158 vifs[0].old_ctx, true); 5159 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5160 5161 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5162 if (ret) { 5163 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5164 goto out_reassign; 5165 } 5166 5167 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5168 vifs[0].new_ctx, true); 5169 if (ret) { 5170 IWL_ERR(mvm, 5171 "failed to assign new_ctx during channel switch\n"); 5172 goto out_remove; 5173 } 5174 5175 /* we don't support TDLS during DCM - can be caused by channel switch */ 5176 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5177 iwl_mvm_teardown_tdls_peers(mvm); 5178 5179 goto out; 5180 5181 out_remove: 5182 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5183 5184 out_reassign: 5185 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5186 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5187 goto out_restart; 5188 } 5189 5190 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5191 vifs[0].old_ctx, true)) { 5192 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5193 goto out_restart; 5194 } 5195 5196 goto out; 5197 5198 out_restart: 5199 /* things keep failing, better restart the hw */ 5200 iwl_mvm_nic_restart(mvm, false); 5201 5202 out: 5203 mutex_unlock(&mvm->mutex); 5204 5205 return ret; 5206 } 5207 5208 static int 5209 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5210 struct ieee80211_vif_chanctx_switch *vifs, 5211 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5212 { 5213 int ret; 5214 5215 mutex_lock(&mvm->mutex); 5216 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5217 vifs[0].old_ctx, true); 5218 5219 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5220 vifs[0].new_ctx, true); 5221 if (ret) { 5222 IWL_ERR(mvm, 5223 "failed to assign new_ctx during channel switch\n"); 5224 goto out_reassign; 5225 } 5226 5227 goto out; 5228 5229 out_reassign: 5230 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5231 vifs[0].old_ctx, true)) { 5232 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5233 goto out_restart; 5234 } 5235 5236 goto out; 5237 5238 out_restart: 5239 /* things keep failing, better restart the hw */ 5240 iwl_mvm_nic_restart(mvm, false); 5241 5242 out: 5243 mutex_unlock(&mvm->mutex); 5244 5245 return ret; 5246 } 5247 5248 /* Execute the common part for both MLD and non-MLD modes */ 5249 int 5250 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5251 struct ieee80211_vif_chanctx_switch *vifs, 5252 int n_vifs, 5253 enum ieee80211_chanctx_switch_mode mode, 5254 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5255 { 5256 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5257 int ret; 5258 5259 /* we only support a single-vif right now */ 5260 if (n_vifs > 1) 5261 return -EOPNOTSUPP; 5262 5263 switch (mode) { 5264 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5265 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5266 break; 5267 case CHANCTX_SWMODE_REASSIGN_VIF: 5268 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5269 break; 5270 default: 5271 ret = -EOPNOTSUPP; 5272 break; 5273 } 5274 5275 return ret; 5276 } 5277 5278 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5279 struct ieee80211_vif_chanctx_switch *vifs, 5280 int n_vifs, 5281 enum ieee80211_chanctx_switch_mode mode) 5282 { 5283 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5284 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5285 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5286 }; 5287 5288 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5289 } 5290 5291 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5292 { 5293 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5294 5295 return mvm->ibss_manager; 5296 } 5297 5298 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5299 bool set) 5300 { 5301 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5302 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5303 5304 if (!mvm_sta || !mvm_sta->vif) { 5305 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5306 return -EINVAL; 5307 } 5308 5309 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5310 &mvm_sta->vif->bss_conf); 5311 } 5312 5313 #ifdef CONFIG_NL80211_TESTMODE 5314 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5315 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5316 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5317 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5318 }; 5319 5320 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5321 struct ieee80211_vif *vif, 5322 void *data, int len) 5323 { 5324 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5325 int err; 5326 u32 noa_duration; 5327 5328 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5329 iwl_mvm_tm_policy, NULL); 5330 if (err) 5331 return err; 5332 5333 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5334 return -EINVAL; 5335 5336 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5337 case IWL_MVM_TM_CMD_SET_NOA: 5338 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5339 !vif->bss_conf.enable_beacon || 5340 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5341 return -EINVAL; 5342 5343 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5344 if (noa_duration >= vif->bss_conf.beacon_int) 5345 return -EINVAL; 5346 5347 mvm->noa_duration = noa_duration; 5348 mvm->noa_vif = vif; 5349 5350 return iwl_mvm_update_quotas(mvm, true, NULL); 5351 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5352 /* must be associated client vif - ignore authorized */ 5353 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5354 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5355 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5356 return -EINVAL; 5357 5358 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5359 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5360 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5361 } 5362 5363 return -EOPNOTSUPP; 5364 } 5365 5366 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5367 struct ieee80211_vif *vif, 5368 void *data, int len) 5369 { 5370 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5371 int err; 5372 5373 mutex_lock(&mvm->mutex); 5374 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5375 mutex_unlock(&mvm->mutex); 5376 5377 return err; 5378 } 5379 #endif 5380 5381 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5382 struct ieee80211_channel_switch *chsw) 5383 { 5384 /* By implementing this operation, we prevent mac80211 from 5385 * starting its own channel switch timer, so that we can call 5386 * ieee80211_chswitch_done() ourselves at the right time 5387 * (which is when the absence time event starts). 5388 */ 5389 5390 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5391 "dummy channel switch op\n"); 5392 } 5393 5394 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5395 struct ieee80211_vif *vif, 5396 struct ieee80211_channel_switch *chsw) 5397 { 5398 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5399 struct iwl_chan_switch_te_cmd cmd = { 5400 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5401 mvmvif->color)), 5402 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5403 .tsf = cpu_to_le32(chsw->timestamp), 5404 .cs_count = chsw->count, 5405 .cs_mode = chsw->block_tx, 5406 }; 5407 5408 lockdep_assert_held(&mvm->mutex); 5409 5410 if (chsw->delay) 5411 cmd.cs_delayed_bcn_count = 5412 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5413 5414 return iwl_mvm_send_cmd_pdu(mvm, 5415 WIDE_ID(MAC_CONF_GROUP, 5416 CHANNEL_SWITCH_TIME_EVENT_CMD), 5417 0, sizeof(cmd), &cmd); 5418 } 5419 5420 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5421 struct ieee80211_vif *vif, 5422 struct ieee80211_channel_switch *chsw) 5423 { 5424 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5425 u32 apply_time; 5426 5427 /* Schedule the time event to a bit before beacon 1, 5428 * to make sure we're in the new channel when the 5429 * GO/AP arrives. In case count <= 1 immediately schedule the 5430 * TE (this might result with some packet loss or connection 5431 * loss). 5432 */ 5433 if (chsw->count <= 1) 5434 apply_time = 0; 5435 else 5436 apply_time = chsw->device_timestamp + 5437 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5438 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5439 5440 if (chsw->block_tx) 5441 iwl_mvm_csa_client_absent(mvm, vif); 5442 5443 if (mvmvif->bf_data.bf_enabled) { 5444 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5445 5446 if (ret) 5447 return ret; 5448 } 5449 5450 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5451 apply_time); 5452 5453 return 0; 5454 } 5455 5456 #define IWL_MAX_CSA_BLOCK_TX 1500 5457 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5458 struct ieee80211_vif *vif, 5459 struct ieee80211_channel_switch *chsw) 5460 { 5461 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5462 struct ieee80211_vif *csa_vif; 5463 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5464 int ret; 5465 5466 mutex_lock(&mvm->mutex); 5467 5468 mvmvif->csa_failed = false; 5469 5470 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5471 chsw->chandef.center_freq1); 5472 5473 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5474 ieee80211_vif_to_wdev(vif), 5475 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5476 5477 switch (vif->type) { 5478 case NL80211_IFTYPE_AP: 5479 csa_vif = 5480 rcu_dereference_protected(mvm->csa_vif, 5481 lockdep_is_held(&mvm->mutex)); 5482 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5483 "Another CSA is already in progress")) { 5484 ret = -EBUSY; 5485 goto out_unlock; 5486 } 5487 5488 /* we still didn't unblock tx. prevent new CS meanwhile */ 5489 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5490 lockdep_is_held(&mvm->mutex))) { 5491 ret = -EBUSY; 5492 goto out_unlock; 5493 } 5494 5495 rcu_assign_pointer(mvm->csa_vif, vif); 5496 5497 if (WARN_ONCE(mvmvif->csa_countdown, 5498 "Previous CSA countdown didn't complete")) { 5499 ret = -EBUSY; 5500 goto out_unlock; 5501 } 5502 5503 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5504 5505 break; 5506 case NL80211_IFTYPE_STATION: 5507 /* 5508 * In the new flow FW is in charge of timing the switch so there 5509 * is no need for all of this 5510 */ 5511 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5512 CHANNEL_SWITCH_ERROR_NOTIF, 5513 0)) 5514 break; 5515 5516 /* 5517 * We haven't configured the firmware to be associated yet since 5518 * we don't know the dtim period. In this case, the firmware can't 5519 * track the beacons. 5520 */ 5521 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5522 ret = -EBUSY; 5523 goto out_unlock; 5524 } 5525 5526 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5527 hweight16(vif->valid_links) <= 1) 5528 schedule_delayed_work(&mvmvif->csa_work, 0); 5529 5530 if (chsw->block_tx) { 5531 /* 5532 * In case of undetermined / long time with immediate 5533 * quiet monitor status to gracefully disconnect 5534 */ 5535 if (!chsw->count || 5536 chsw->count * vif->bss_conf.beacon_int > 5537 IWL_MAX_CSA_BLOCK_TX) 5538 schedule_delayed_work(&mvmvif->csa_work, 5539 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5540 } 5541 5542 if (!fw_has_capa(&mvm->fw->ucode_capa, 5543 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5544 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5545 if (ret) 5546 goto out_unlock; 5547 } else { 5548 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5549 } 5550 5551 mvmvif->csa_count = chsw->count; 5552 mvmvif->csa_misbehave = false; 5553 break; 5554 default: 5555 break; 5556 } 5557 5558 mvmvif->ps_disabled = true; 5559 5560 ret = iwl_mvm_power_update_ps(mvm); 5561 if (ret) 5562 goto out_unlock; 5563 5564 /* we won't be on this channel any longer */ 5565 iwl_mvm_teardown_tdls_peers(mvm); 5566 5567 out_unlock: 5568 mutex_unlock(&mvm->mutex); 5569 5570 return ret; 5571 } 5572 5573 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5574 struct ieee80211_vif *vif, 5575 struct ieee80211_channel_switch *chsw) 5576 { 5577 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5578 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5579 struct iwl_chan_switch_te_cmd cmd = { 5580 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5581 mvmvif->color)), 5582 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5583 .tsf = cpu_to_le32(chsw->timestamp), 5584 .cs_count = chsw->count, 5585 .cs_mode = chsw->block_tx, 5586 }; 5587 5588 /* 5589 * In the new flow FW is in charge of timing the switch so there is no 5590 * need for all of this 5591 */ 5592 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5593 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5594 return; 5595 5596 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5597 return; 5598 5599 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5600 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5601 5602 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5603 if (mvmvif->csa_misbehave) { 5604 /* Second time, give up on this AP*/ 5605 iwl_mvm_abort_channel_switch(hw, vif); 5606 ieee80211_chswitch_done(vif, false, 0); 5607 mvmvif->csa_misbehave = false; 5608 return; 5609 } 5610 mvmvif->csa_misbehave = true; 5611 } 5612 mvmvif->csa_count = chsw->count; 5613 5614 mutex_lock(&mvm->mutex); 5615 if (mvmvif->csa_failed) 5616 goto out_unlock; 5617 5618 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5619 WIDE_ID(MAC_CONF_GROUP, 5620 CHANNEL_SWITCH_TIME_EVENT_CMD), 5621 0, sizeof(cmd), &cmd)); 5622 out_unlock: 5623 mutex_unlock(&mvm->mutex); 5624 } 5625 5626 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5627 { 5628 int i; 5629 5630 if (!iwl_mvm_has_new_tx_api(mvm)) { 5631 if (drop) { 5632 mutex_lock(&mvm->mutex); 5633 iwl_mvm_flush_tx_path(mvm, 5634 iwl_mvm_flushable_queues(mvm) & queues); 5635 mutex_unlock(&mvm->mutex); 5636 } else { 5637 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5638 } 5639 return; 5640 } 5641 5642 mutex_lock(&mvm->mutex); 5643 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5644 struct ieee80211_sta *sta; 5645 5646 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5647 lockdep_is_held(&mvm->mutex)); 5648 if (IS_ERR_OR_NULL(sta)) 5649 continue; 5650 5651 if (drop) 5652 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5653 else 5654 iwl_mvm_wait_sta_queues_empty(mvm, 5655 iwl_mvm_sta_from_mac80211(sta)); 5656 } 5657 mutex_unlock(&mvm->mutex); 5658 } 5659 5660 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5661 u32 queues, bool drop) 5662 { 5663 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5664 struct iwl_mvm_vif *mvmvif; 5665 struct iwl_mvm_sta *mvmsta; 5666 struct ieee80211_sta *sta; 5667 bool ap_sta_done = false; 5668 int i; 5669 u32 msk = 0; 5670 5671 if (!vif) { 5672 iwl_mvm_flush_no_vif(mvm, queues, drop); 5673 return; 5674 } 5675 5676 /* Make sure we're done with the deferred traffic before flushing */ 5677 flush_work(&mvm->add_stream_wk); 5678 5679 mutex_lock(&mvm->mutex); 5680 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5681 5682 /* flush the AP-station and all TDLS peers */ 5683 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5684 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5685 lockdep_is_held(&mvm->mutex)); 5686 if (IS_ERR_OR_NULL(sta)) 5687 continue; 5688 5689 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5690 if (mvmsta->vif != vif) 5691 continue; 5692 5693 if (sta == mvmvif->ap_sta) { 5694 if (ap_sta_done) 5695 continue; 5696 ap_sta_done = true; 5697 } 5698 5699 if (drop) { 5700 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5701 mvmsta->tfd_queue_msk)) 5702 IWL_ERR(mvm, "flush request fail\n"); 5703 } else { 5704 if (iwl_mvm_has_new_tx_api(mvm)) 5705 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5706 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5707 msk |= mvmsta->tfd_queue_msk; 5708 } 5709 } 5710 5711 mutex_unlock(&mvm->mutex); 5712 5713 /* this can take a while, and we may need/want other operations 5714 * to succeed while doing this, so do it without the mutex held 5715 */ 5716 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5717 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5718 } 5719 5720 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5721 struct ieee80211_sta *sta) 5722 { 5723 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5724 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5725 struct iwl_mvm_link_sta *mvm_link_sta; 5726 struct ieee80211_link_sta *link_sta; 5727 int link_id; 5728 5729 mutex_lock(&mvm->mutex); 5730 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5731 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5732 lockdep_is_held(&mvm->mutex)); 5733 if (!mvm_link_sta) 5734 continue; 5735 5736 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5737 mvmsta->tfd_queue_msk)) 5738 IWL_ERR(mvm, "flush request fail\n"); 5739 } 5740 mutex_unlock(&mvm->mutex); 5741 } 5742 5743 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5744 struct survey_info *survey) 5745 { 5746 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5747 int ret = 0; 5748 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5749 WIDE_ID(SYSTEM_GROUP, 5750 SYSTEM_STATISTICS_CMD), 5751 IWL_FW_CMD_VER_UNKNOWN); 5752 5753 memset(survey, 0, sizeof(*survey)); 5754 5755 /* only support global statistics right now */ 5756 if (idx != 0) 5757 return -ENOENT; 5758 5759 if (!fw_has_capa(&mvm->fw->ucode_capa, 5760 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5761 return -ENOENT; 5762 5763 mutex_lock(&mvm->mutex); 5764 5765 if (iwl_mvm_firmware_running(mvm)) { 5766 ret = iwl_mvm_request_statistics(mvm, false); 5767 if (ret) 5768 goto out; 5769 } 5770 5771 survey->filled = SURVEY_INFO_TIME_RX | 5772 SURVEY_INFO_TIME_TX; 5773 5774 survey->time_rx = mvm->accu_radio_stats.rx_time + 5775 mvm->radio_stats.rx_time; 5776 do_div(survey->time_rx, USEC_PER_MSEC); 5777 5778 survey->time_tx = mvm->accu_radio_stats.tx_time + 5779 mvm->radio_stats.tx_time; 5780 do_div(survey->time_tx, USEC_PER_MSEC); 5781 5782 /* the new fw api doesn't support the following fields */ 5783 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 5784 goto out; 5785 5786 survey->filled |= SURVEY_INFO_TIME | 5787 SURVEY_INFO_TIME_SCAN; 5788 survey->time = mvm->accu_radio_stats.on_time_rf + 5789 mvm->radio_stats.on_time_rf; 5790 do_div(survey->time, USEC_PER_MSEC); 5791 5792 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5793 mvm->radio_stats.on_time_scan; 5794 do_div(survey->time_scan, USEC_PER_MSEC); 5795 5796 out: 5797 mutex_unlock(&mvm->mutex); 5798 return ret; 5799 } 5800 5801 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5802 { 5803 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5804 u32 gi_ltf; 5805 5806 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5807 case RATE_MCS_CHAN_WIDTH_20: 5808 rinfo->bw = RATE_INFO_BW_20; 5809 break; 5810 case RATE_MCS_CHAN_WIDTH_40: 5811 rinfo->bw = RATE_INFO_BW_40; 5812 break; 5813 case RATE_MCS_CHAN_WIDTH_80: 5814 rinfo->bw = RATE_INFO_BW_80; 5815 break; 5816 case RATE_MCS_CHAN_WIDTH_160: 5817 rinfo->bw = RATE_INFO_BW_160; 5818 break; 5819 case RATE_MCS_CHAN_WIDTH_320: 5820 rinfo->bw = RATE_INFO_BW_320; 5821 break; 5822 } 5823 5824 if (format == RATE_MCS_CCK_MSK || 5825 format == RATE_MCS_LEGACY_OFDM_MSK) { 5826 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5827 5828 /* add the offset needed to get to the legacy ofdm indices */ 5829 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5830 rate += IWL_FIRST_OFDM_RATE; 5831 5832 switch (rate) { 5833 case IWL_RATE_1M_INDEX: 5834 rinfo->legacy = 10; 5835 break; 5836 case IWL_RATE_2M_INDEX: 5837 rinfo->legacy = 20; 5838 break; 5839 case IWL_RATE_5M_INDEX: 5840 rinfo->legacy = 55; 5841 break; 5842 case IWL_RATE_11M_INDEX: 5843 rinfo->legacy = 110; 5844 break; 5845 case IWL_RATE_6M_INDEX: 5846 rinfo->legacy = 60; 5847 break; 5848 case IWL_RATE_9M_INDEX: 5849 rinfo->legacy = 90; 5850 break; 5851 case IWL_RATE_12M_INDEX: 5852 rinfo->legacy = 120; 5853 break; 5854 case IWL_RATE_18M_INDEX: 5855 rinfo->legacy = 180; 5856 break; 5857 case IWL_RATE_24M_INDEX: 5858 rinfo->legacy = 240; 5859 break; 5860 case IWL_RATE_36M_INDEX: 5861 rinfo->legacy = 360; 5862 break; 5863 case IWL_RATE_48M_INDEX: 5864 rinfo->legacy = 480; 5865 break; 5866 case IWL_RATE_54M_INDEX: 5867 rinfo->legacy = 540; 5868 } 5869 return; 5870 } 5871 5872 rinfo->nss = u32_get_bits(rate_n_flags, 5873 RATE_MCS_NSS_MSK) + 1; 5874 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5875 RATE_HT_MCS_INDEX(rate_n_flags) : 5876 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5877 5878 if (rate_n_flags & RATE_MCS_SGI_MSK) 5879 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5880 5881 switch (format) { 5882 case RATE_MCS_EHT_MSK: 5883 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5884 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5885 break; 5886 case RATE_MCS_HE_MSK: 5887 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5888 5889 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5890 5891 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5892 rinfo->bw = RATE_INFO_BW_HE_RU; 5893 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5894 } 5895 5896 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5897 case RATE_MCS_HE_TYPE_SU: 5898 case RATE_MCS_HE_TYPE_EXT_SU: 5899 if (gi_ltf == 0 || gi_ltf == 1) 5900 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5901 else if (gi_ltf == 2) 5902 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5903 else if (gi_ltf == 3) 5904 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5905 else 5906 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5907 break; 5908 case RATE_MCS_HE_TYPE_MU: 5909 if (gi_ltf == 0 || gi_ltf == 1) 5910 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5911 else if (gi_ltf == 2) 5912 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5913 else 5914 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5915 break; 5916 case RATE_MCS_HE_TYPE_TRIG: 5917 if (gi_ltf == 0 || gi_ltf == 1) 5918 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5919 else 5920 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5921 break; 5922 } 5923 5924 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5925 rinfo->he_dcm = 1; 5926 break; 5927 case RATE_MCS_HT_MSK: 5928 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5929 break; 5930 case RATE_MCS_VHT_MSK: 5931 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5932 break; 5933 } 5934 } 5935 5936 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5937 struct ieee80211_vif *vif, 5938 struct ieee80211_sta *sta, 5939 struct station_info *sinfo) 5940 { 5941 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5942 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5943 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5944 int i; 5945 5946 if (mvmsta->deflink.avg_energy) { 5947 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5948 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5949 } 5950 5951 if (iwl_mvm_has_tlc_offload(mvm)) { 5952 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5953 5954 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5955 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5956 } 5957 5958 /* if beacon filtering isn't on mac80211 does it anyway */ 5959 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5960 return; 5961 5962 if (!vif->cfg.assoc) 5963 return; 5964 5965 mutex_lock(&mvm->mutex); 5966 5967 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5968 goto unlock; 5969 5970 if (iwl_mvm_request_statistics(mvm, false)) 5971 goto unlock; 5972 5973 sinfo->rx_beacon = 0; 5974 for_each_mvm_vif_valid_link(mvmvif, i) 5975 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 5976 mvmvif->link[i]->beacon_stats.accu_num_beacons; 5977 5978 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5979 if (mvmvif->deflink.beacon_stats.avg_signal) { 5980 /* firmware only reports a value after RXing a few beacons */ 5981 sinfo->rx_beacon_signal_avg = 5982 mvmvif->deflink.beacon_stats.avg_signal; 5983 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5984 } 5985 unlock: 5986 mutex_unlock(&mvm->mutex); 5987 } 5988 5989 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5990 struct ieee80211_vif *vif, 5991 const struct ieee80211_mlme_event *mlme) 5992 { 5993 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5994 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5995 iwl_dbg_tlv_time_point(&mvm->fwrt, 5996 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5997 NULL); 5998 return; 5999 } 6000 6001 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6002 iwl_dbg_tlv_time_point(&mvm->fwrt, 6003 IWL_FW_INI_TIME_POINT_DEASSOC, 6004 NULL); 6005 return; 6006 } 6007 } 6008 6009 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6010 struct ieee80211_vif *vif, 6011 const struct ieee80211_event *event) 6012 { 6013 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6014 do { \ 6015 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6016 break; \ 6017 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6018 } while (0) 6019 6020 struct iwl_fw_dbg_trigger_tlv *trig; 6021 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6022 6023 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6024 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6025 return; 6026 } 6027 6028 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6029 FW_DBG_TRIGGER_MLME); 6030 if (!trig) 6031 return; 6032 6033 trig_mlme = (void *)trig->data; 6034 6035 if (event->u.mlme.data == ASSOC_EVENT) { 6036 if (event->u.mlme.status == MLME_DENIED) 6037 CHECK_MLME_TRIGGER(stop_assoc_denied, 6038 "DENIED ASSOC: reason %d", 6039 event->u.mlme.reason); 6040 else if (event->u.mlme.status == MLME_TIMEOUT) 6041 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6042 "ASSOC TIMEOUT"); 6043 } else if (event->u.mlme.data == AUTH_EVENT) { 6044 if (event->u.mlme.status == MLME_DENIED) 6045 CHECK_MLME_TRIGGER(stop_auth_denied, 6046 "DENIED AUTH: reason %d", 6047 event->u.mlme.reason); 6048 else if (event->u.mlme.status == MLME_TIMEOUT) 6049 CHECK_MLME_TRIGGER(stop_auth_timeout, 6050 "AUTH TIMEOUT"); 6051 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6052 CHECK_MLME_TRIGGER(stop_rx_deauth, 6053 "DEAUTH RX %d", event->u.mlme.reason); 6054 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6055 CHECK_MLME_TRIGGER(stop_tx_deauth, 6056 "DEAUTH TX %d", event->u.mlme.reason); 6057 } 6058 #undef CHECK_MLME_TRIGGER 6059 } 6060 6061 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6062 struct ieee80211_vif *vif, 6063 const struct ieee80211_event *event) 6064 { 6065 struct iwl_fw_dbg_trigger_tlv *trig; 6066 struct iwl_fw_dbg_trigger_ba *ba_trig; 6067 6068 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6069 FW_DBG_TRIGGER_BA); 6070 if (!trig) 6071 return; 6072 6073 ba_trig = (void *)trig->data; 6074 6075 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6076 return; 6077 6078 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6079 "BAR received from %pM, tid %d, ssn %d", 6080 event->u.ba.sta->addr, event->u.ba.tid, 6081 event->u.ba.ssn); 6082 } 6083 6084 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6085 struct ieee80211_vif *vif, 6086 const struct ieee80211_event *event) 6087 { 6088 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6089 6090 switch (event->type) { 6091 case MLME_EVENT: 6092 iwl_mvm_event_mlme_callback(mvm, vif, event); 6093 break; 6094 case BAR_RX_EVENT: 6095 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6096 break; 6097 case BA_FRAME_TIMEOUT: 6098 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6099 event->u.ba.tid); 6100 break; 6101 default: 6102 break; 6103 } 6104 } 6105 6106 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6107 enum iwl_mvm_rxq_notif_type type, 6108 bool sync, 6109 const void *data, u32 size) 6110 { 6111 struct { 6112 struct iwl_rxq_sync_cmd cmd; 6113 struct iwl_mvm_internal_rxq_notif notif; 6114 } __packed cmd = { 6115 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6116 .cmd.count = 6117 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6118 size), 6119 .notif.type = type, 6120 .notif.sync = sync, 6121 }; 6122 struct iwl_host_cmd hcmd = { 6123 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6124 .data[0] = &cmd, 6125 .len[0] = sizeof(cmd), 6126 .data[1] = data, 6127 .len[1] = size, 6128 .flags = sync ? 0 : CMD_ASYNC, 6129 }; 6130 int ret; 6131 6132 /* size must be a multiple of DWORD */ 6133 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6134 return; 6135 6136 if (!iwl_mvm_has_new_rx_api(mvm)) 6137 return; 6138 6139 if (sync) { 6140 cmd.notif.cookie = mvm->queue_sync_cookie; 6141 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6142 } 6143 6144 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6145 if (ret) { 6146 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6147 goto out; 6148 } 6149 6150 if (sync) { 6151 lockdep_assert_held(&mvm->mutex); 6152 ret = wait_event_timeout(mvm->rx_sync_waitq, 6153 READ_ONCE(mvm->queue_sync_state) == 0 || 6154 iwl_mvm_is_radio_killed(mvm), 6155 HZ); 6156 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6157 "queue sync: failed to sync, state is 0x%lx\n", 6158 mvm->queue_sync_state); 6159 } 6160 6161 out: 6162 if (sync) { 6163 mvm->queue_sync_state = 0; 6164 mvm->queue_sync_cookie++; 6165 } 6166 } 6167 6168 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6169 { 6170 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6171 6172 mutex_lock(&mvm->mutex); 6173 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6174 mutex_unlock(&mvm->mutex); 6175 } 6176 6177 int 6178 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6179 struct ieee80211_vif *vif, 6180 struct cfg80211_ftm_responder_stats *stats) 6181 { 6182 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6183 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6184 6185 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6186 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6187 return -EINVAL; 6188 6189 mutex_lock(&mvm->mutex); 6190 *stats = mvm->ftm_resp_stats; 6191 mutex_unlock(&mvm->mutex); 6192 6193 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6194 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6195 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6196 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6197 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6198 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6199 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6200 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6201 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6202 6203 return 0; 6204 } 6205 6206 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6207 struct cfg80211_pmsr_request *request) 6208 { 6209 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6210 int ret; 6211 6212 mutex_lock(&mvm->mutex); 6213 ret = iwl_mvm_ftm_start(mvm, vif, request); 6214 mutex_unlock(&mvm->mutex); 6215 6216 return ret; 6217 } 6218 6219 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6220 struct cfg80211_pmsr_request *request) 6221 { 6222 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6223 6224 mutex_lock(&mvm->mutex); 6225 iwl_mvm_ftm_abort(mvm, request); 6226 mutex_unlock(&mvm->mutex); 6227 } 6228 6229 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6230 { 6231 u8 protocol = ip_hdr(skb)->protocol; 6232 6233 if (!IS_ENABLED(CONFIG_INET)) 6234 return false; 6235 6236 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6237 } 6238 6239 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6240 struct sk_buff *head, 6241 struct sk_buff *skb) 6242 { 6243 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6244 6245 /* For now don't aggregate IPv6 in AMSDU */ 6246 if (skb->protocol != htons(ETH_P_IP)) 6247 return false; 6248 6249 if (!iwl_mvm_is_csum_supported(mvm)) 6250 return true; 6251 6252 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6253 } 6254 6255 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6256 struct ieee80211_vif *vif, 6257 struct cfg80211_set_hw_timestamp *hwts) 6258 { 6259 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6260 u32 protocols = 0; 6261 int ret; 6262 6263 /* HW timestamping is only supported for a specific station */ 6264 if (!hwts->macaddr) 6265 return -EOPNOTSUPP; 6266 6267 if (hwts->enable) 6268 protocols = 6269 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6270 6271 mutex_lock(&mvm->mutex); 6272 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6273 mutex_unlock(&mvm->mutex); 6274 6275 return ret; 6276 } 6277 6278 const struct ieee80211_ops iwl_mvm_hw_ops = { 6279 .tx = iwl_mvm_mac_tx, 6280 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6281 .ampdu_action = iwl_mvm_mac_ampdu_action, 6282 .get_antenna = iwl_mvm_op_get_antenna, 6283 .set_antenna = iwl_mvm_op_set_antenna, 6284 .start = iwl_mvm_mac_start, 6285 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6286 .stop = iwl_mvm_mac_stop, 6287 .add_interface = iwl_mvm_mac_add_interface, 6288 .remove_interface = iwl_mvm_mac_remove_interface, 6289 .config = iwl_mvm_mac_config, 6290 .prepare_multicast = iwl_mvm_prepare_multicast, 6291 .configure_filter = iwl_mvm_configure_filter, 6292 .config_iface_filter = iwl_mvm_config_iface_filter, 6293 .bss_info_changed = iwl_mvm_bss_info_changed, 6294 .hw_scan = iwl_mvm_mac_hw_scan, 6295 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6296 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6297 .sta_state = iwl_mvm_mac_sta_state, 6298 .sta_notify = iwl_mvm_mac_sta_notify, 6299 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6300 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6301 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6302 .sta_rc_update = iwl_mvm_sta_rc_update, 6303 .conf_tx = iwl_mvm_mac_conf_tx, 6304 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6305 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6306 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6307 .flush = iwl_mvm_mac_flush, 6308 .flush_sta = iwl_mvm_mac_flush_sta, 6309 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6310 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6311 .set_key = iwl_mvm_mac_set_key, 6312 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6313 .remain_on_channel = iwl_mvm_roc, 6314 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6315 .add_chanctx = iwl_mvm_add_chanctx, 6316 .remove_chanctx = iwl_mvm_remove_chanctx, 6317 .change_chanctx = iwl_mvm_change_chanctx, 6318 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6319 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6320 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6321 6322 .start_ap = iwl_mvm_start_ap, 6323 .stop_ap = iwl_mvm_stop_ap, 6324 .join_ibss = iwl_mvm_start_ibss, 6325 .leave_ibss = iwl_mvm_stop_ibss, 6326 6327 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6328 6329 .set_tim = iwl_mvm_set_tim, 6330 6331 .channel_switch = iwl_mvm_channel_switch, 6332 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6333 .post_channel_switch = iwl_mvm_post_channel_switch, 6334 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6335 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6336 6337 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6338 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6339 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6340 6341 .event_callback = iwl_mvm_mac_event_callback, 6342 6343 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6344 6345 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6346 6347 #ifdef CONFIG_PM_SLEEP 6348 /* look at d3.c */ 6349 .suspend = iwl_mvm_suspend, 6350 .resume = iwl_mvm_resume, 6351 .set_wakeup = iwl_mvm_set_wakeup, 6352 .set_rekey_data = iwl_mvm_set_rekey_data, 6353 #if IS_ENABLED(CONFIG_IPV6) 6354 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6355 #endif 6356 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6357 #endif 6358 .get_survey = iwl_mvm_mac_get_survey, 6359 .sta_statistics = iwl_mvm_mac_sta_statistics, 6360 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6361 .start_pmsr = iwl_mvm_start_pmsr, 6362 .abort_pmsr = iwl_mvm_abort_pmsr, 6363 6364 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6365 #ifdef CONFIG_IWLWIFI_DEBUGFS 6366 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6367 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6368 #endif 6369 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6370 }; 6371