1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-eeprom-parse.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_STATION), 37 }, 38 { 39 .max = 1, 40 .types = BIT(NL80211_IFTYPE_AP) | 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | 42 BIT(NL80211_IFTYPE_P2P_GO), 43 }, 44 { 45 .max = 1, 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 47 }, 48 }; 49 50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 51 { 52 .num_different_channels = 2, 53 .max_interfaces = 3, 54 .limits = iwl_mvm_limits, 55 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 56 }, 57 }; 58 59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 60 .max_peers = IWL_MVM_TOF_MAX_APS, 61 .report_ap_tsf = 1, 62 .randomize_mac_addr = 1, 63 64 .ftm = { 65 .supported = 1, 66 .asap = 1, 67 .non_asap = 1, 68 .request_lci = 1, 69 .request_civicloc = 1, 70 .trigger_based = 1, 71 .non_trigger_based = 1, 72 .max_bursts_exponent = -1, /* all supported */ 73 .max_ftms_per_burst = 0, /* no limits */ 74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80) | 78 BIT(NL80211_CHAN_WIDTH_160), 79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 80 BIT(NL80211_PREAMBLE_HT) | 81 BIT(NL80211_PREAMBLE_VHT) | 82 BIT(NL80211_PREAMBLE_HE), 83 }, 84 }; 85 86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 87 enum set_key_cmd cmd, 88 struct ieee80211_vif *vif, 89 struct ieee80211_sta *sta, 90 struct ieee80211_key_conf *key); 91 92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 93 { 94 int i; 95 96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 97 for (i = 0; i < NUM_PHY_CTX; i++) { 98 mvm->phy_ctxts[i].id = i; 99 mvm->phy_ctxts[i].ref = 0; 100 } 101 } 102 103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 104 const char *alpha2, 105 enum iwl_mcc_source src_id, 106 bool *changed) 107 { 108 struct ieee80211_regdomain *regd = NULL; 109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 111 struct iwl_mcc_update_resp_v8 *resp; 112 u8 resp_ver; 113 114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 115 116 lockdep_assert_held(&mvm->mutex); 117 118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 119 if (IS_ERR_OR_NULL(resp)) { 120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 121 PTR_ERR_OR_ZERO(resp)); 122 resp = NULL; 123 goto out; 124 } 125 126 if (changed) { 127 u32 status = le32_to_cpu(resp->status); 128 129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 130 status == MCC_RESP_ILLEGAL); 131 } 132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 133 MCC_UPDATE_CMD, 0); 134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 135 136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 137 __le32_to_cpu(resp->n_channels), 138 resp->channels, 139 __le16_to_cpu(resp->mcc), 140 __le16_to_cpu(resp->geo_info), 141 le32_to_cpu(resp->cap), resp_ver); 142 /* Store the return source id */ 143 src_id = resp->source_id; 144 if (IS_ERR_OR_NULL(regd)) { 145 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 146 PTR_ERR_OR_ZERO(regd)); 147 goto out; 148 } 149 150 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 151 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 152 mvm->lar_regdom_set = true; 153 mvm->mcc_src = src_id; 154 155 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 156 157 out: 158 kfree(resp); 159 return regd; 160 } 161 162 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 163 { 164 bool changed; 165 struct ieee80211_regdomain *regd; 166 167 if (!iwl_mvm_is_lar_supported(mvm)) 168 return; 169 170 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 171 if (!IS_ERR_OR_NULL(regd)) { 172 /* only update the regulatory core if changed */ 173 if (changed) 174 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 175 176 kfree(regd); 177 } 178 } 179 180 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 181 bool *changed) 182 { 183 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 184 iwl_mvm_is_wifi_mcc_supported(mvm) ? 185 MCC_SOURCE_GET_CURRENT : 186 MCC_SOURCE_OLD_FW, changed); 187 } 188 189 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 190 { 191 enum iwl_mcc_source used_src; 192 struct ieee80211_regdomain *regd; 193 int ret; 194 bool changed; 195 const struct ieee80211_regdomain *r = 196 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 197 198 if (!r) 199 return -ENOENT; 200 201 /* save the last source in case we overwrite it below */ 202 used_src = mvm->mcc_src; 203 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 204 /* Notify the firmware we support wifi location updates */ 205 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 206 if (!IS_ERR_OR_NULL(regd)) 207 kfree(regd); 208 } 209 210 /* Now set our last stored MCC and source */ 211 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 212 &changed); 213 if (IS_ERR_OR_NULL(regd)) 214 return -EIO; 215 216 /* update cfg80211 if the regdomain was changed */ 217 if (changed) 218 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 219 else 220 ret = 0; 221 222 kfree(regd); 223 return ret; 224 } 225 226 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 227 static const u8 he_if_types_ext_capa_sta[] = { 228 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 229 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 230 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 231 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 232 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 233 }; 234 235 static const u8 tm_if_types_ext_capa_sta[] = { 236 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 237 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 238 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 239 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 240 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 241 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 242 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 243 }; 244 245 /* Additional interface types for which extended capabilities are 246 * specified separately 247 */ 248 249 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 250 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 251 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 252 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 253 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 254 255 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 256 { 257 .iftype = NL80211_IFTYPE_STATION, 258 .extended_capabilities = he_if_types_ext_capa_sta, 259 .extended_capabilities_mask = he_if_types_ext_capa_sta, 260 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 261 /* relevant only if EHT is supported */ 262 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 263 }, 264 { 265 .iftype = NL80211_IFTYPE_STATION, 266 .extended_capabilities = tm_if_types_ext_capa_sta, 267 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 268 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 269 /* relevant only if EHT is supported */ 270 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 271 }, 272 }; 273 274 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 275 { 276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 277 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 278 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 279 return 0; 280 } 281 282 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 283 { 284 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 285 286 /* This has been tested on those devices only */ 287 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 288 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) 289 return -ENOTSUPP; 290 291 if (!mvm->nvm_data) 292 return -EBUSY; 293 294 /* mac80211 ensures the device is not started, 295 * so the firmware cannot be running 296 */ 297 298 mvm->set_tx_ant = tx_ant; 299 mvm->set_rx_ant = rx_ant; 300 301 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 302 303 return 0; 304 } 305 306 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 307 { 308 struct ieee80211_hw *hw = mvm->hw; 309 int num_mac, ret, i; 310 static const u32 mvm_ciphers[] = { 311 WLAN_CIPHER_SUITE_WEP40, 312 WLAN_CIPHER_SUITE_WEP104, 313 WLAN_CIPHER_SUITE_TKIP, 314 WLAN_CIPHER_SUITE_CCMP, 315 }; 316 #ifdef CONFIG_PM_SLEEP 317 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 318 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 319 #endif 320 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 321 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 322 323 /* Tell mac80211 our characteristics */ 324 ieee80211_hw_set(hw, SIGNAL_DBM); 325 ieee80211_hw_set(hw, SPECTRUM_MGMT); 326 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 327 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 328 ieee80211_hw_set(hw, SUPPORTS_PS); 329 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 330 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 331 ieee80211_hw_set(hw, CONNECTION_MONITOR); 332 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 333 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 334 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 335 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 336 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 337 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 338 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 339 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 340 341 /* Set this early since we need to have it for the check below */ 342 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 343 !iwlwifi_mod_params.disable_11ax && 344 !iwlwifi_mod_params.disable_11be) 345 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 346 347 /* With MLD FW API, it tracks timing by itself, 348 * no need for any timing from the host 349 */ 350 if (!mvm->mld_api_is_used) 351 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 352 353 /* We should probably have this, but mac80211 354 * currently doesn't support it for MLO. 355 */ 356 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 357 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 358 359 /* 360 * On older devices, enabling TX A-MSDU occasionally leads to 361 * something getting messed up, the command read from the FIFO 362 * gets out of sync and isn't a TX command, so that we have an 363 * assert EDC. 364 * 365 * It's not clear where the bug is, but since we didn't used to 366 * support A-MSDU until moving the mac80211 iTXQs, just leave it 367 * for older devices. We also don't see this issue on any newer 368 * devices. 369 */ 370 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 371 ieee80211_hw_set(hw, TX_AMSDU); 372 ieee80211_hw_set(hw, TX_FRAG_LIST); 373 374 if (iwl_mvm_has_tlc_offload(mvm)) { 375 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 376 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 377 } 378 379 if (iwl_mvm_has_new_rx_api(mvm)) 380 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 381 382 if (fw_has_capa(&mvm->fw->ucode_capa, 383 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 384 ieee80211_hw_set(hw, AP_LINK_PS); 385 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 386 /* 387 * we absolutely need this for the new TX API since that comes 388 * with many more queues than the current code can deal with 389 * for station powersave 390 */ 391 return -EINVAL; 392 } 393 394 if (mvm->trans->num_rx_queues > 1) 395 ieee80211_hw_set(hw, USES_RSS); 396 397 if (mvm->trans->max_skb_frags) 398 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 399 400 hw->queues = IEEE80211_NUM_ACS; 401 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 402 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 403 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 404 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 405 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 406 407 hw->radiotap_timestamp.units_pos = 408 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 409 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 410 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 411 hw->radiotap_timestamp.accuracy = 22; 412 413 if (!iwl_mvm_has_tlc_offload(mvm)) 414 hw->rate_control_algorithm = RS_NAME; 415 416 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 417 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 418 hw->max_tx_fragments = mvm->trans->max_skb_frags; 419 420 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 421 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 422 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 423 hw->wiphy->cipher_suites = mvm->ciphers; 424 425 if (iwl_mvm_has_new_rx_api(mvm)) { 426 mvm->ciphers[hw->wiphy->n_cipher_suites] = 427 WLAN_CIPHER_SUITE_GCMP; 428 hw->wiphy->n_cipher_suites++; 429 mvm->ciphers[hw->wiphy->n_cipher_suites] = 430 WLAN_CIPHER_SUITE_GCMP_256; 431 hw->wiphy->n_cipher_suites++; 432 } 433 434 if (iwlwifi_mod_params.swcrypto) 435 IWL_ERR(mvm, 436 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 437 if (!iwlwifi_mod_params.bt_coex_active) 438 IWL_ERR(mvm, 439 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 440 441 ieee80211_hw_set(hw, MFP_CAPABLE); 442 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 443 hw->wiphy->n_cipher_suites++; 444 if (iwl_mvm_has_new_rx_api(mvm)) { 445 mvm->ciphers[hw->wiphy->n_cipher_suites] = 446 WLAN_CIPHER_SUITE_BIP_GMAC_128; 447 hw->wiphy->n_cipher_suites++; 448 mvm->ciphers[hw->wiphy->n_cipher_suites] = 449 WLAN_CIPHER_SUITE_BIP_GMAC_256; 450 hw->wiphy->n_cipher_suites++; 451 } 452 453 wiphy_ext_feature_set(hw->wiphy, 454 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 455 wiphy_ext_feature_set(hw->wiphy, 456 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 457 458 if (fw_has_capa(&mvm->fw->ucode_capa, 459 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 460 wiphy_ext_feature_set(hw->wiphy, 461 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 462 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 463 } 464 465 if (sec_key_ver && 466 fw_has_capa(&mvm->fw->ucode_capa, 467 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 468 wiphy_ext_feature_set(hw->wiphy, 469 NL80211_EXT_FEATURE_BEACON_PROTECTION); 470 else if (fw_has_capa(&mvm->fw->ucode_capa, 471 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 472 wiphy_ext_feature_set(hw->wiphy, 473 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 474 475 if (fw_has_capa(&mvm->fw->ucode_capa, 476 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 477 hw->wiphy->hw_timestamp_max_peers = 1; 478 479 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 480 hw->wiphy->features |= 481 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 482 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 483 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 484 485 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 486 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 487 hw->chanctx_data_size = sizeof(u16); 488 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 489 490 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 491 BIT(NL80211_IFTYPE_P2P_CLIENT) | 492 BIT(NL80211_IFTYPE_AP) | 493 BIT(NL80211_IFTYPE_P2P_GO) | 494 BIT(NL80211_IFTYPE_P2P_DEVICE) | 495 BIT(NL80211_IFTYPE_ADHOC); 496 497 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 498 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 499 500 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 501 * the hw, preventing us to control which key(id) to use per MPDU. 502 * Till that's fixed we can't use Extended Key ID for the newer cards. 503 */ 504 if (!iwl_mvm_has_new_tx_api(mvm)) 505 wiphy_ext_feature_set(hw->wiphy, 506 NL80211_EXT_FEATURE_EXT_KEY_ID); 507 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 508 509 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 510 if (iwl_mvm_is_lar_supported(mvm)) 511 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 512 else 513 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 514 REGULATORY_DISABLE_BEACON_HINTS; 515 516 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 517 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 518 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 519 520 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 521 hw->wiphy->n_iface_combinations = 522 ARRAY_SIZE(iwl_mvm_iface_combinations); 523 524 hw->wiphy->max_remain_on_channel_duration = 10000; 525 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 526 527 /* Extract MAC address */ 528 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 529 hw->wiphy->addresses = mvm->addresses; 530 hw->wiphy->n_addresses = 1; 531 532 /* Extract additional MAC addresses if available */ 533 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 534 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 535 536 for (i = 1; i < num_mac; i++) { 537 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 538 ETH_ALEN); 539 mvm->addresses[i].addr[5]++; 540 hw->wiphy->n_addresses++; 541 } 542 543 iwl_mvm_reset_phy_ctxts(mvm); 544 545 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 546 547 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 548 549 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 550 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 551 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 552 553 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 554 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 555 else 556 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 557 558 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 559 hw->wiphy->bands[NL80211_BAND_2GHZ] = 560 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 561 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 562 hw->wiphy->bands[NL80211_BAND_5GHZ] = 563 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 564 565 if (fw_has_capa(&mvm->fw->ucode_capa, 566 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 567 fw_has_api(&mvm->fw->ucode_capa, 568 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 569 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 570 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 571 } 572 if (fw_has_capa(&mvm->fw->ucode_capa, 573 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 574 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 575 hw->wiphy->bands[NL80211_BAND_6GHZ] = 576 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 577 578 hw->wiphy->hw_version = mvm->trans->hw_id; 579 580 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 581 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 582 else 583 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 584 585 hw->wiphy->max_sched_scan_reqs = 1; 586 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 587 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 588 /* we create the 802.11 header and zero length SSID IE. */ 589 hw->wiphy->max_sched_scan_ie_len = 590 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 591 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 592 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 593 594 /* 595 * the firmware uses u8 for num of iterations, but 0xff is saved for 596 * infinite loop, so the maximum number of iterations is actually 254. 597 */ 598 hw->wiphy->max_sched_scan_plan_iterations = 254; 599 600 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 601 NL80211_FEATURE_LOW_PRIORITY_SCAN | 602 NL80211_FEATURE_P2P_GO_OPPPS | 603 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 604 NL80211_FEATURE_DYNAMIC_SMPS | 605 NL80211_FEATURE_STATIC_SMPS | 606 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 607 608 if (fw_has_capa(&mvm->fw->ucode_capa, 609 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 610 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 611 if (fw_has_capa(&mvm->fw->ucode_capa, 612 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 613 hw->wiphy->features |= NL80211_FEATURE_QUIET; 614 615 if (fw_has_capa(&mvm->fw->ucode_capa, 616 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 617 hw->wiphy->features |= 618 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 619 620 if (fw_has_capa(&mvm->fw->ucode_capa, 621 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 622 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 623 624 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 625 IWL_FW_CMD_VER_UNKNOWN) == 3) 626 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 627 628 if (fw_has_api(&mvm->fw->ucode_capa, 629 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 630 wiphy_ext_feature_set(hw->wiphy, 631 NL80211_EXT_FEATURE_SCAN_START_TIME); 632 wiphy_ext_feature_set(hw->wiphy, 633 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 634 } 635 636 if (iwl_mvm_is_oce_supported(mvm)) { 637 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 638 639 wiphy_ext_feature_set(hw->wiphy, 640 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 641 wiphy_ext_feature_set(hw->wiphy, 642 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 643 wiphy_ext_feature_set(hw->wiphy, 644 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 645 646 /* Old firmware also supports probe deferral and suppression */ 647 if (scan_ver < 15) 648 wiphy_ext_feature_set(hw->wiphy, 649 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 650 } 651 652 hw->wiphy->iftype_ext_capab = NULL; 653 hw->wiphy->num_iftype_ext_capab = 0; 654 655 if (mvm->nvm_data->sku_cap_11ax_enable && 656 !iwlwifi_mod_params.disable_11ax) { 657 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 658 hw->wiphy->num_iftype_ext_capab = 659 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 660 661 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 662 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 663 } 664 665 if (iwl_fw_lookup_cmd_ver(mvm->fw, 666 WIDE_ID(DATA_PATH_GROUP, 667 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 668 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 669 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 670 671 if (!hw->wiphy->iftype_ext_capab) { 672 hw->wiphy->num_iftype_ext_capab = 1; 673 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 674 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 675 } else { 676 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 677 } 678 } 679 680 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 681 682 #ifdef CONFIG_PM_SLEEP 683 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 684 mvm->trans->ops->d3_suspend && 685 mvm->trans->ops->d3_resume && 686 device_can_wakeup(mvm->trans->dev)) { 687 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 688 WIPHY_WOWLAN_DISCONNECT | 689 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 690 WIPHY_WOWLAN_RFKILL_RELEASE | 691 WIPHY_WOWLAN_NET_DETECT; 692 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 693 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 694 WIPHY_WOWLAN_4WAY_HANDSHAKE; 695 696 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 697 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 698 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 699 mvm->wowlan.max_nd_match_sets = 700 iwl_umac_scan_get_max_profiles(mvm->fw); 701 hw->wiphy->wowlan = &mvm->wowlan; 702 } 703 #endif 704 705 ret = iwl_mvm_leds_init(mvm); 706 if (ret) 707 return ret; 708 709 if (fw_has_capa(&mvm->fw->ucode_capa, 710 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 711 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 712 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 713 ieee80211_hw_set(hw, TDLS_WIDER_BW); 714 } 715 716 if (fw_has_capa(&mvm->fw->ucode_capa, 717 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 718 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 719 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 720 } 721 722 hw->netdev_features |= mvm->cfg->features; 723 if (!iwl_mvm_is_csum_supported(mvm)) 724 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 725 726 if (mvm->cfg->vht_mu_mimo_supported) 727 wiphy_ext_feature_set(hw->wiphy, 728 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 729 730 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 731 wiphy_ext_feature_set(hw->wiphy, 732 NL80211_EXT_FEATURE_PROTECTED_TWT); 733 734 iwl_mvm_vendor_cmds_register(mvm); 735 736 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 737 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 738 739 ret = ieee80211_register_hw(mvm->hw); 740 if (ret) { 741 iwl_mvm_leds_exit(mvm); 742 } 743 744 return ret; 745 } 746 747 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 748 struct ieee80211_sta *sta) 749 { 750 if (likely(sta)) { 751 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 752 return; 753 } else { 754 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 755 return; 756 } 757 758 ieee80211_free_txskb(mvm->hw, skb); 759 } 760 761 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 762 struct ieee80211_tx_control *control, struct sk_buff *skb) 763 { 764 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 765 struct ieee80211_sta *sta = control->sta; 766 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 767 struct ieee80211_hdr *hdr = (void *)skb->data; 768 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 769 IEEE80211_TX_CTL_TX_OFFCHAN; 770 u32 link_id = u32_get_bits(info->control.flags, 771 IEEE80211_TX_CTRL_MLO_LINK); 772 struct ieee80211_sta *tmp_sta = sta; 773 774 if (iwl_mvm_is_radio_killed(mvm)) { 775 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 776 goto drop; 777 } 778 779 if (offchannel && 780 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 781 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 782 goto drop; 783 784 /* 785 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 786 * so we treat the others as broadcast 787 */ 788 if (ieee80211_is_mgmt(hdr->frame_control)) 789 sta = NULL; 790 791 /* If there is no sta, and it's not offchannel - send through AP */ 792 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 793 !offchannel) { 794 struct iwl_mvm_vif *mvmvif = 795 iwl_mvm_vif_from_mac80211(info->control.vif); 796 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 797 798 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 799 /* mac80211 holds rcu read lock */ 800 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 801 if (IS_ERR_OR_NULL(sta)) 802 goto drop; 803 } 804 } 805 806 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 807 !ieee80211_is_probe_resp(hdr->frame_control)) { 808 /* translate MLD addresses to LINK addresses */ 809 struct ieee80211_link_sta *link_sta = 810 rcu_dereference(tmp_sta->link[link_id]); 811 struct ieee80211_bss_conf *link_conf = 812 rcu_dereference(info->control.vif->link_conf[link_id]); 813 struct ieee80211_mgmt *mgmt; 814 815 if (WARN_ON(!link_sta || !link_conf)) 816 goto drop; 817 818 /* if sta is NULL, the frame is a management frame */ 819 mgmt = (void *)hdr; 820 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 821 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 822 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 823 } 824 825 iwl_mvm_tx_skb(mvm, skb, sta); 826 return; 827 drop: 828 ieee80211_free_txskb(hw, skb); 829 } 830 831 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 832 { 833 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 834 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 835 struct sk_buff *skb = NULL; 836 837 /* 838 * No need for threads to be pending here, they can leave the first 839 * taker all the work. 840 * 841 * mvmtxq->tx_request logic: 842 * 843 * If 0, no one is currently TXing, set to 1 to indicate current thread 844 * will now start TX and other threads should quit. 845 * 846 * If 1, another thread is currently TXing, set to 2 to indicate to 847 * that thread that there was another request. Since that request may 848 * have raced with the check whether the queue is empty, the TXing 849 * thread should check the queue's status one more time before leaving. 850 * This check is done in order to not leave any TX hanging in the queue 851 * until the next TX invocation (which may not even happen). 852 * 853 * If 2, another thread is currently TXing, and it will already double 854 * check the queue, so do nothing. 855 */ 856 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 857 return; 858 859 rcu_read_lock(); 860 do { 861 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 862 &mvmtxq->state) && 863 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 864 &mvmtxq->state) && 865 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 866 skb = ieee80211_tx_dequeue(hw, txq); 867 868 if (!skb) { 869 if (txq->sta) 870 IWL_DEBUG_TX(mvm, 871 "TXQ of sta %pM tid %d is now empty\n", 872 txq->sta->addr, 873 txq->tid); 874 break; 875 } 876 877 iwl_mvm_tx_skb(mvm, skb, txq->sta); 878 } 879 } while (atomic_dec_return(&mvmtxq->tx_request)); 880 rcu_read_unlock(); 881 } 882 883 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 884 struct ieee80211_txq *txq) 885 { 886 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 887 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 888 889 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 890 !txq->sta) { 891 iwl_mvm_mac_itxq_xmit(hw, txq); 892 return; 893 } 894 895 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 896 * to handle any packets we leave on the txq now 897 */ 898 899 spin_lock_bh(&mvm->add_stream_lock); 900 /* The list is being deleted only after the queue is fully allocated. */ 901 if (list_empty(&mvmtxq->list) && 902 /* recheck under lock */ 903 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 904 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 905 schedule_work(&mvm->add_stream_wk); 906 } 907 spin_unlock_bh(&mvm->add_stream_lock); 908 } 909 910 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 911 do { \ 912 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 913 break; \ 914 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 915 } while (0) 916 917 static void 918 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 919 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 920 enum ieee80211_ampdu_mlme_action action) 921 { 922 struct iwl_fw_dbg_trigger_tlv *trig; 923 struct iwl_fw_dbg_trigger_ba *ba_trig; 924 925 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 926 FW_DBG_TRIGGER_BA); 927 if (!trig) 928 return; 929 930 ba_trig = (void *)trig->data; 931 932 switch (action) { 933 case IEEE80211_AMPDU_TX_OPERATIONAL: { 934 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 935 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 936 937 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 938 "TX AGG START: MAC %pM tid %d ssn %d\n", 939 sta->addr, tid, tid_data->ssn); 940 break; 941 } 942 case IEEE80211_AMPDU_TX_STOP_CONT: 943 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 944 "TX AGG STOP: MAC %pM tid %d\n", 945 sta->addr, tid); 946 break; 947 case IEEE80211_AMPDU_RX_START: 948 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 949 "RX AGG START: MAC %pM tid %d ssn %d\n", 950 sta->addr, tid, rx_ba_ssn); 951 break; 952 case IEEE80211_AMPDU_RX_STOP: 953 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 954 "RX AGG STOP: MAC %pM tid %d\n", 955 sta->addr, tid); 956 break; 957 default: 958 break; 959 } 960 } 961 962 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 963 struct ieee80211_vif *vif, 964 struct ieee80211_ampdu_params *params) 965 { 966 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 967 int ret; 968 struct ieee80211_sta *sta = params->sta; 969 enum ieee80211_ampdu_mlme_action action = params->action; 970 u16 tid = params->tid; 971 u16 *ssn = ¶ms->ssn; 972 u16 buf_size = params->buf_size; 973 bool amsdu = params->amsdu; 974 u16 timeout = params->timeout; 975 976 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 977 sta->addr, tid, action); 978 979 if (!(mvm->nvm_data->sku_cap_11n_enable)) 980 return -EACCES; 981 982 mutex_lock(&mvm->mutex); 983 984 switch (action) { 985 case IEEE80211_AMPDU_RX_START: 986 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 987 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 988 struct iwl_mvm_vif *mvmvif; 989 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 990 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 991 992 mdata->opened_rx_ba_sessions = true; 993 mvmvif = iwl_mvm_vif_from_mac80211(vif); 994 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 995 } 996 if (!iwl_enable_rx_ampdu()) { 997 ret = -EINVAL; 998 break; 999 } 1000 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1001 timeout); 1002 break; 1003 case IEEE80211_AMPDU_RX_STOP: 1004 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1005 timeout); 1006 break; 1007 case IEEE80211_AMPDU_TX_START: 1008 if (!iwl_enable_tx_ampdu()) { 1009 ret = -EINVAL; 1010 break; 1011 } 1012 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1013 break; 1014 case IEEE80211_AMPDU_TX_STOP_CONT: 1015 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1016 break; 1017 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1018 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1019 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1020 break; 1021 case IEEE80211_AMPDU_TX_OPERATIONAL: 1022 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1023 buf_size, amsdu); 1024 break; 1025 default: 1026 WARN_ON_ONCE(1); 1027 ret = -EINVAL; 1028 break; 1029 } 1030 1031 if (!ret) { 1032 u16 rx_ba_ssn = 0; 1033 1034 if (action == IEEE80211_AMPDU_RX_START) 1035 rx_ba_ssn = *ssn; 1036 1037 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1038 rx_ba_ssn, action); 1039 } 1040 mutex_unlock(&mvm->mutex); 1041 1042 return ret; 1043 } 1044 1045 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1046 struct ieee80211_vif *vif) 1047 { 1048 struct iwl_mvm *mvm = data; 1049 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1050 struct iwl_probe_resp_data *probe_data; 1051 unsigned int link_id; 1052 1053 mvmvif->uploaded = false; 1054 1055 spin_lock_bh(&mvm->time_event_lock); 1056 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1057 spin_unlock_bh(&mvm->time_event_lock); 1058 1059 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1060 mvmvif->ap_sta = NULL; 1061 1062 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1063 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1064 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1065 mvmvif->link[link_id]->phy_ctxt = NULL; 1066 mvmvif->link[link_id]->active = 0; 1067 mvmvif->link[link_id]->igtk = NULL; 1068 } 1069 1070 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1071 lockdep_is_held(&mvm->mutex)); 1072 if (probe_data) 1073 kfree_rcu(probe_data, rcu_head); 1074 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1075 } 1076 1077 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1078 { 1079 iwl_mvm_stop_device(mvm); 1080 1081 mvm->cur_aid = 0; 1082 1083 mvm->scan_status = 0; 1084 mvm->ps_disabled = false; 1085 mvm->rfkill_safe_init_done = false; 1086 1087 /* just in case one was running */ 1088 iwl_mvm_cleanup_roc_te(mvm); 1089 ieee80211_remain_on_channel_expired(mvm->hw); 1090 1091 iwl_mvm_ftm_restart(mvm); 1092 1093 /* 1094 * cleanup all interfaces, even inactive ones, as some might have 1095 * gone down during the HW restart 1096 */ 1097 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1098 1099 mvm->p2p_device_vif = NULL; 1100 1101 iwl_mvm_reset_phy_ctxts(mvm); 1102 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1103 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1104 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1105 1106 ieee80211_wake_queues(mvm->hw); 1107 1108 mvm->rx_ba_sessions = 0; 1109 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1110 mvm->monitor_on = false; 1111 #ifdef CONFIG_IWLWIFI_DEBUGFS 1112 mvm->beacon_inject_active = false; 1113 #endif 1114 1115 /* keep statistics ticking */ 1116 iwl_mvm_accu_radio_stats(mvm); 1117 } 1118 1119 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1120 { 1121 int ret; 1122 1123 lockdep_assert_held(&mvm->mutex); 1124 1125 ret = iwl_mvm_mei_get_ownership(mvm); 1126 if (ret) 1127 return ret; 1128 1129 if (mvm->mei_nvm_data) { 1130 /* We got the NIC, we can now free the MEI NVM data */ 1131 kfree(mvm->mei_nvm_data); 1132 mvm->mei_nvm_data = NULL; 1133 1134 /* 1135 * We can't free the nvm_data we allocated based on the SAP 1136 * data because we registered to cfg80211 with the channels 1137 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1138 * just in order to be able free it later. 1139 * NULLify nvm_data so that we will read the NVM from the 1140 * firmware this time. 1141 */ 1142 mvm->temp_nvm_data = mvm->nvm_data; 1143 mvm->nvm_data = NULL; 1144 } 1145 1146 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1147 /* 1148 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1149 * so later code will - from now on - see that we're doing it. 1150 */ 1151 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1152 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1153 /* Clean up some internal and mac80211 state on restart */ 1154 iwl_mvm_restart_cleanup(mvm); 1155 } 1156 ret = iwl_mvm_up(mvm); 1157 1158 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1159 NULL); 1160 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1161 NULL); 1162 1163 mvm->last_reset_or_resume_time_jiffies = jiffies; 1164 1165 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1166 /* Something went wrong - we need to finish some cleanup 1167 * that normally iwl_mvm_mac_restart_complete() below 1168 * would do. 1169 */ 1170 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1171 } 1172 1173 return ret; 1174 } 1175 1176 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1177 { 1178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1179 int ret; 1180 int retry, max_retry = 0; 1181 1182 mutex_lock(&mvm->mutex); 1183 1184 /* we are starting the mac not in error flow, and restart is enabled */ 1185 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1186 iwlwifi_mod_params.fw_restart) { 1187 max_retry = IWL_MAX_INIT_RETRY; 1188 /* 1189 * This will prevent mac80211 recovery flows to trigger during 1190 * init failures 1191 */ 1192 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1193 } 1194 1195 for (retry = 0; retry <= max_retry; retry++) { 1196 ret = __iwl_mvm_mac_start(mvm); 1197 if (!ret || mvm->pldr_sync) 1198 break; 1199 1200 IWL_ERR(mvm, "mac start retry %d\n", retry); 1201 } 1202 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1203 1204 mutex_unlock(&mvm->mutex); 1205 1206 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1207 1208 return ret; 1209 } 1210 1211 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1212 { 1213 int ret; 1214 1215 mutex_lock(&mvm->mutex); 1216 1217 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1218 1219 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1220 if (ret) 1221 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1222 ret); 1223 1224 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1225 1226 /* 1227 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1228 * of packets the FW sent out, so we must reconnect. 1229 */ 1230 iwl_mvm_teardown_tdls_peers(mvm); 1231 1232 mutex_unlock(&mvm->mutex); 1233 } 1234 1235 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1236 enum ieee80211_reconfig_type reconfig_type) 1237 { 1238 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1239 1240 switch (reconfig_type) { 1241 case IEEE80211_RECONFIG_TYPE_RESTART: 1242 iwl_mvm_restart_complete(mvm); 1243 break; 1244 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1245 break; 1246 } 1247 } 1248 1249 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1250 { 1251 lockdep_assert_held(&mvm->mutex); 1252 1253 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1254 1255 /* firmware counters are obviously reset now, but we shouldn't 1256 * partially track so also clear the fw_reset_accu counters. 1257 */ 1258 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1259 1260 /* async_handlers_wk is now blocked */ 1261 1262 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1263 iwl_mvm_rm_aux_sta(mvm); 1264 1265 iwl_mvm_stop_device(mvm); 1266 1267 iwl_mvm_async_handlers_purge(mvm); 1268 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1269 1270 /* 1271 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1272 * hw (as restart_complete() won't be called in this case) and mac80211 1273 * won't execute the restart. 1274 * But make sure to cleanup interfaces that have gone down before/during 1275 * HW restart was requested. 1276 */ 1277 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1278 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1279 &mvm->status)) 1280 ieee80211_iterate_interfaces(mvm->hw, 0, 1281 iwl_mvm_cleanup_iterator, mvm); 1282 1283 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1284 * make sure there's nothing left there and warn if any is found. 1285 */ 1286 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1287 int i; 1288 1289 for (i = 0; i < mvm->max_scans; i++) { 1290 if (WARN_ONCE(mvm->scan_uid_status[i], 1291 "UMAC scan UID %d status was not cleaned\n", 1292 i)) 1293 mvm->scan_uid_status[i] = 0; 1294 } 1295 } 1296 } 1297 1298 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1299 { 1300 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1301 1302 flush_work(&mvm->async_handlers_wk); 1303 flush_work(&mvm->add_stream_wk); 1304 1305 /* 1306 * Lock and clear the firmware running bit here already, so that 1307 * new commands coming in elsewhere, e.g. from debugfs, will not 1308 * be able to proceed. This is important here because one of those 1309 * debugfs files causes the firmware dump to be triggered, and if we 1310 * don't stop debugfs accesses before canceling that it could be 1311 * retriggered after we flush it but before we've cleared the bit. 1312 */ 1313 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1314 1315 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1316 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1317 1318 /* 1319 * The work item could be running or queued if the 1320 * ROC time event stops just as we get here. 1321 */ 1322 flush_work(&mvm->roc_done_wk); 1323 1324 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1325 1326 mutex_lock(&mvm->mutex); 1327 __iwl_mvm_mac_stop(mvm); 1328 mutex_unlock(&mvm->mutex); 1329 1330 /* 1331 * The worker might have been waiting for the mutex, let it run and 1332 * discover that its list is now empty. 1333 */ 1334 cancel_work_sync(&mvm->async_handlers_wk); 1335 } 1336 1337 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1338 { 1339 u16 i; 1340 1341 lockdep_assert_held(&mvm->mutex); 1342 1343 for (i = 0; i < NUM_PHY_CTX; i++) 1344 if (!mvm->phy_ctxts[i].ref) 1345 return &mvm->phy_ctxts[i]; 1346 1347 IWL_ERR(mvm, "No available PHY context\n"); 1348 return NULL; 1349 } 1350 1351 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1352 s16 tx_power) 1353 { 1354 u32 cmd_id = REDUCE_TX_POWER_CMD; 1355 int len; 1356 struct iwl_dev_tx_power_cmd cmd = { 1357 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1358 .common.mac_context_id = 1359 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1360 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1361 }; 1362 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1363 IWL_FW_CMD_VER_UNKNOWN); 1364 1365 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1366 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1367 1368 if (cmd_ver == 7) 1369 len = sizeof(cmd.v7); 1370 else if (cmd_ver == 6) 1371 len = sizeof(cmd.v6); 1372 else if (fw_has_api(&mvm->fw->ucode_capa, 1373 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1374 len = sizeof(cmd.v5); 1375 else if (fw_has_capa(&mvm->fw->ucode_capa, 1376 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1377 len = sizeof(cmd.v4); 1378 else 1379 len = sizeof(cmd.v3); 1380 1381 /* all structs have the same common part, add it */ 1382 len += sizeof(cmd.common); 1383 1384 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1385 } 1386 1387 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1388 struct ieee80211_vif *vif, 1389 struct ieee80211_bss_conf *link_conf) 1390 { 1391 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1392 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1393 int ret; 1394 1395 mutex_lock(&mvm->mutex); 1396 1397 if (vif->type == NL80211_IFTYPE_STATION) { 1398 struct iwl_mvm_sta *mvmsta; 1399 unsigned int link_id = link_conf->link_id; 1400 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1401 1402 mvmvif->csa_bcn_pending = false; 1403 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1404 1405 if (WARN_ON(!mvmsta)) { 1406 ret = -EIO; 1407 goto out_unlock; 1408 } 1409 1410 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1411 if (mvm->mld_api_is_used) 1412 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1413 else 1414 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1415 1416 if (!fw_has_capa(&mvm->fw->ucode_capa, 1417 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1418 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1419 if (ret) 1420 goto out_unlock; 1421 1422 iwl_mvm_stop_session_protection(mvm, vif); 1423 } 1424 } 1425 1426 mvmvif->ps_disabled = false; 1427 1428 ret = iwl_mvm_power_update_ps(mvm); 1429 1430 out_unlock: 1431 if (mvmvif->csa_failed) 1432 ret = -EIO; 1433 mutex_unlock(&mvm->mutex); 1434 1435 return ret; 1436 } 1437 1438 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1439 struct ieee80211_vif *vif) 1440 { 1441 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1442 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1443 struct iwl_chan_switch_te_cmd cmd = { 1444 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1445 mvmvif->color)), 1446 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1447 }; 1448 1449 /* 1450 * In the new flow since FW is in charge of the timing, 1451 * if driver has canceled the channel switch he will receive the 1452 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1453 */ 1454 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1455 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1456 return; 1457 1458 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1459 1460 mutex_lock(&mvm->mutex); 1461 if (!fw_has_capa(&mvm->fw->ucode_capa, 1462 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1463 iwl_mvm_remove_csa_period(mvm, vif); 1464 else 1465 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1466 WIDE_ID(MAC_CONF_GROUP, 1467 CHANNEL_SWITCH_TIME_EVENT_CMD), 1468 0, sizeof(cmd), &cmd)); 1469 mvmvif->csa_failed = true; 1470 mutex_unlock(&mvm->mutex); 1471 1472 /* If we're here, we can't support MLD */ 1473 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1474 } 1475 1476 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1477 { 1478 struct iwl_mvm_vif *mvmvif; 1479 struct ieee80211_vif *vif; 1480 1481 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1482 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1483 1484 /* Trigger disconnect (should clear the CSA state) */ 1485 ieee80211_chswitch_done(vif, false, 0); 1486 } 1487 1488 static u8 1489 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1490 { 1491 int data_start; 1492 int control_start; 1493 int bw; 1494 1495 if (chandef->width == NL80211_CHAN_WIDTH_320) 1496 bw = 320; 1497 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1498 bw = 160; 1499 else 1500 return 0; 1501 1502 /* data is bw wide so the start is half the width */ 1503 data_start = chandef->center_freq1 - bw / 2; 1504 /* control is 20Mhz width */ 1505 control_start = chandef->chan->center_freq - 10; 1506 1507 return (control_start - data_start) / 80; 1508 } 1509 1510 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1511 struct ieee80211_vif *vif) 1512 { 1513 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1514 int ret; 1515 1516 lockdep_assert_held(&mvm->mutex); 1517 1518 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1519 if (ret) { 1520 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1521 return ret; 1522 } 1523 1524 /* Only queue for this station is the mcast queue, 1525 * which shouldn't be in TFD mask anyway 1526 */ 1527 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1528 vif->type, 1529 IWL_STA_MULTICAST); 1530 } 1531 1532 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1533 struct ieee80211_vif *vif) 1534 { 1535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1536 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1537 int ret; 1538 1539 mutex_lock(&mvm->mutex); 1540 1541 mvmvif->mvm = mvm; 1542 1543 /* the first link always points to the default one */ 1544 mvmvif->link[0] = &mvmvif->deflink; 1545 1546 /* 1547 * Not much to do here. The stack will not allow interface 1548 * types or combinations that we didn't advertise, so we 1549 * don't really have to check the types. 1550 */ 1551 1552 /* make sure that beacon statistics don't go backwards with FW reset */ 1553 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1554 mvmvif->deflink.beacon_stats.accu_num_beacons += 1555 mvmvif->deflink.beacon_stats.num_beacons; 1556 1557 /* Allocate resources for the MAC context, and add it to the fw */ 1558 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1559 if (ret) 1560 goto out; 1561 1562 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1563 1564 /* Currently not much to do for NAN */ 1565 if (vif->type == NL80211_IFTYPE_NAN) { 1566 ret = 0; 1567 goto out; 1568 } 1569 1570 /* 1571 * The AP binding flow can be done only after the beacon 1572 * template is configured (which happens only in the mac80211 1573 * start_ap() flow), and adding the broadcast station can happen 1574 * only after the binding. 1575 * In addition, since modifying the MAC before adding a bcast 1576 * station is not allowed by the FW, delay the adding of MAC context to 1577 * the point where we can also add the bcast station. 1578 * In short: there's not much we can do at this point, other than 1579 * allocating resources :) 1580 */ 1581 if (vif->type == NL80211_IFTYPE_AP || 1582 vif->type == NL80211_IFTYPE_ADHOC) { 1583 iwl_mvm_vif_dbgfs_register(mvm, vif); 1584 ret = 0; 1585 goto out; 1586 } 1587 1588 mvmvif->features |= hw->netdev_features; 1589 1590 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1591 if (ret) 1592 goto out_unlock; 1593 1594 ret = iwl_mvm_power_update_mac(mvm); 1595 if (ret) 1596 goto out_remove_mac; 1597 1598 /* beacon filtering */ 1599 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1600 if (ret) 1601 goto out_remove_mac; 1602 1603 if (!mvm->bf_allowed_vif && 1604 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1605 mvm->bf_allowed_vif = mvmvif; 1606 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1607 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1608 } 1609 1610 /* 1611 * P2P_DEVICE interface does not have a channel context assigned to it, 1612 * so a dedicated PHY context is allocated to it and the corresponding 1613 * MAC context is bound to it at this stage. 1614 */ 1615 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1616 1617 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1618 if (!mvmvif->deflink.phy_ctxt) { 1619 ret = -ENOSPC; 1620 goto out_free_bf; 1621 } 1622 1623 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 1624 ret = iwl_mvm_binding_add_vif(mvm, vif); 1625 if (ret) 1626 goto out_unref_phy; 1627 1628 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1629 if (ret) 1630 goto out_unbind; 1631 1632 /* Save a pointer to p2p device vif, so it can later be used to 1633 * update the p2p device MAC when a GO is started/stopped */ 1634 mvm->p2p_device_vif = vif; 1635 } 1636 1637 iwl_mvm_tcm_add_vif(mvm, vif); 1638 INIT_DELAYED_WORK(&mvmvif->csa_work, 1639 iwl_mvm_channel_switch_disconnect_wk); 1640 1641 if (vif->type == NL80211_IFTYPE_MONITOR) { 1642 mvm->monitor_on = true; 1643 mvm->monitor_p80 = 1644 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1645 } 1646 1647 iwl_mvm_vif_dbgfs_register(mvm, vif); 1648 1649 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1650 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1651 !mvm->csme_vif && mvm->mei_registered) { 1652 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1653 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1654 mvm->csme_vif = vif; 1655 } 1656 1657 out: 1658 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1659 vif->type == NL80211_IFTYPE_ADHOC)) 1660 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1661 1662 goto out_unlock; 1663 1664 out_unbind: 1665 iwl_mvm_binding_remove_vif(mvm, vif); 1666 out_unref_phy: 1667 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1668 out_free_bf: 1669 if (mvm->bf_allowed_vif == mvmvif) { 1670 mvm->bf_allowed_vif = NULL; 1671 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1672 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1673 } 1674 out_remove_mac: 1675 mvmvif->deflink.phy_ctxt = NULL; 1676 iwl_mvm_mac_ctxt_remove(mvm, vif); 1677 out_unlock: 1678 mutex_unlock(&mvm->mutex); 1679 1680 return ret; 1681 } 1682 1683 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1684 struct ieee80211_vif *vif) 1685 { 1686 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1687 /* 1688 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1689 * We assume here that all the packets sent to the OFFCHANNEL 1690 * queue are sent in ROC session. 1691 */ 1692 flush_work(&mvm->roc_done_wk); 1693 } 1694 } 1695 1696 /* This function is doing the common part of removing the interface for 1697 * both - MLD and non-MLD modes. Returns true if removing the interface 1698 * is done 1699 */ 1700 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1701 struct ieee80211_vif *vif) 1702 { 1703 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1704 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1705 struct iwl_probe_resp_data *probe_data; 1706 1707 iwl_mvm_prepare_mac_removal(mvm, vif); 1708 1709 if (!(vif->type == NL80211_IFTYPE_AP || 1710 vif->type == NL80211_IFTYPE_ADHOC)) 1711 iwl_mvm_tcm_rm_vif(mvm, vif); 1712 1713 mutex_lock(&mvm->mutex); 1714 1715 if (vif == mvm->csme_vif) { 1716 iwl_mei_set_netdev(NULL); 1717 mvm->csme_vif = NULL; 1718 } 1719 1720 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1721 lockdep_is_held(&mvm->mutex)); 1722 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1723 if (probe_data) 1724 kfree_rcu(probe_data, rcu_head); 1725 1726 if (mvm->bf_allowed_vif == mvmvif) { 1727 mvm->bf_allowed_vif = NULL; 1728 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1729 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1730 } 1731 1732 if (vif->bss_conf.ftm_responder) 1733 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1734 1735 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1736 1737 /* 1738 * For AP/GO interface, the tear down of the resources allocated to the 1739 * interface is be handled as part of the stop_ap flow. 1740 */ 1741 if (vif->type == NL80211_IFTYPE_AP || 1742 vif->type == NL80211_IFTYPE_ADHOC) { 1743 #ifdef CONFIG_NL80211_TESTMODE 1744 if (vif == mvm->noa_vif) { 1745 mvm->noa_vif = NULL; 1746 mvm->noa_duration = 0; 1747 } 1748 #endif 1749 return true; 1750 } 1751 1752 iwl_mvm_power_update_mac(mvm); 1753 return false; 1754 } 1755 1756 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1757 struct ieee80211_vif *vif) 1758 { 1759 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1760 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1761 1762 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1763 goto out; 1764 1765 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1766 mvm->p2p_device_vif = NULL; 1767 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1768 iwl_mvm_binding_remove_vif(mvm, vif); 1769 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1770 mvmvif->deflink.phy_ctxt = NULL; 1771 } 1772 1773 iwl_mvm_mac_ctxt_remove(mvm, vif); 1774 1775 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1776 1777 if (vif->type == NL80211_IFTYPE_MONITOR) 1778 mvm->monitor_on = false; 1779 1780 out: 1781 if (vif->type == NL80211_IFTYPE_AP || 1782 vif->type == NL80211_IFTYPE_ADHOC) { 1783 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1784 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1785 } 1786 1787 mutex_unlock(&mvm->mutex); 1788 } 1789 1790 struct iwl_mvm_mc_iter_data { 1791 struct iwl_mvm *mvm; 1792 int port_id; 1793 }; 1794 1795 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1796 struct ieee80211_vif *vif) 1797 { 1798 struct iwl_mvm_mc_iter_data *data = _data; 1799 struct iwl_mvm *mvm = data->mvm; 1800 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1801 struct iwl_host_cmd hcmd = { 1802 .id = MCAST_FILTER_CMD, 1803 .flags = CMD_ASYNC, 1804 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1805 }; 1806 int ret, len; 1807 1808 /* if we don't have free ports, mcast frames will be dropped */ 1809 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1810 return; 1811 1812 if (vif->type != NL80211_IFTYPE_STATION || 1813 !vif->cfg.assoc) 1814 return; 1815 1816 cmd->port_id = data->port_id++; 1817 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1818 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1819 1820 hcmd.len[0] = len; 1821 hcmd.data[0] = cmd; 1822 1823 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1824 if (ret) 1825 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1826 } 1827 1828 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1829 { 1830 struct iwl_mvm_mc_iter_data iter_data = { 1831 .mvm = mvm, 1832 }; 1833 int ret; 1834 1835 lockdep_assert_held(&mvm->mutex); 1836 1837 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1838 return; 1839 1840 ieee80211_iterate_active_interfaces_atomic( 1841 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1842 iwl_mvm_mc_iface_iterator, &iter_data); 1843 1844 /* 1845 * Send a (synchronous) ech command so that we wait for the 1846 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1847 * the interface iterator. Otherwise, we might get here over 1848 * and over again (by userspace just sending a lot of these) 1849 * and the CPU can send them faster than the firmware can 1850 * process them. 1851 * Note that the CPU is still faster - but with this we'll 1852 * actually send fewer commands overall because the CPU will 1853 * not schedule the work in mac80211 as frequently if it's 1854 * still running when rescheduled (possibly multiple times). 1855 */ 1856 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1857 if (ret) 1858 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1859 } 1860 1861 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1862 struct netdev_hw_addr_list *mc_list) 1863 { 1864 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1865 struct iwl_mcast_filter_cmd *cmd; 1866 struct netdev_hw_addr *addr; 1867 int addr_count; 1868 bool pass_all; 1869 int len; 1870 1871 addr_count = netdev_hw_addr_list_count(mc_list); 1872 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1873 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1874 if (pass_all) 1875 addr_count = 0; 1876 1877 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1878 cmd = kzalloc(len, GFP_ATOMIC); 1879 if (!cmd) 1880 return 0; 1881 1882 if (pass_all) { 1883 cmd->pass_all = 1; 1884 return (u64)(unsigned long)cmd; 1885 } 1886 1887 netdev_hw_addr_list_for_each(addr, mc_list) { 1888 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1889 cmd->count, addr->addr); 1890 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1891 addr->addr, ETH_ALEN); 1892 cmd->count++; 1893 } 1894 1895 return (u64)(unsigned long)cmd; 1896 } 1897 1898 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1899 unsigned int changed_flags, 1900 unsigned int *total_flags, u64 multicast) 1901 { 1902 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1903 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1904 1905 mutex_lock(&mvm->mutex); 1906 1907 /* replace previous configuration */ 1908 kfree(mvm->mcast_filter_cmd); 1909 mvm->mcast_filter_cmd = cmd; 1910 1911 if (!cmd) 1912 goto out; 1913 1914 if (changed_flags & FIF_ALLMULTI) 1915 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1916 1917 if (cmd->pass_all) 1918 cmd->count = 0; 1919 1920 iwl_mvm_recalc_multicast(mvm); 1921 out: 1922 mutex_unlock(&mvm->mutex); 1923 *total_flags = 0; 1924 } 1925 1926 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1927 struct ieee80211_vif *vif, 1928 unsigned int filter_flags, 1929 unsigned int changed_flags) 1930 { 1931 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1932 1933 /* We support only filter for probe requests */ 1934 if (!(changed_flags & FIF_PROBE_REQ)) 1935 return; 1936 1937 /* Supported only for p2p client interfaces */ 1938 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1939 !vif->p2p) 1940 return; 1941 1942 mutex_lock(&mvm->mutex); 1943 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1944 mutex_unlock(&mvm->mutex); 1945 } 1946 1947 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1948 { 1949 struct iwl_mu_group_mgmt_cmd cmd = {}; 1950 1951 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1952 WLAN_MEMBERSHIP_LEN); 1953 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1954 WLAN_USER_POSITION_LEN); 1955 1956 return iwl_mvm_send_cmd_pdu(mvm, 1957 WIDE_ID(DATA_PATH_GROUP, 1958 UPDATE_MU_GROUPS_CMD), 1959 0, sizeof(cmd), &cmd); 1960 } 1961 1962 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1963 struct ieee80211_vif *vif) 1964 { 1965 if (vif->bss_conf.mu_mimo_owner) { 1966 struct iwl_mu_group_mgmt_notif *notif = _data; 1967 1968 /* 1969 * MU-MIMO Group Id action frame is little endian. We treat 1970 * the data received from firmware as if it came from the 1971 * action frame, so no conversion is needed. 1972 */ 1973 ieee80211_update_mu_groups(vif, 0, 1974 (u8 *)¬if->membership_status, 1975 (u8 *)¬if->user_position); 1976 } 1977 } 1978 1979 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1980 struct iwl_rx_cmd_buffer *rxb) 1981 { 1982 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1983 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1984 1985 ieee80211_iterate_active_interfaces_atomic( 1986 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1987 iwl_mvm_mu_mimo_iface_iterator, notif); 1988 } 1989 1990 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1991 { 1992 u8 byte_num = ppe_pos_bit / 8; 1993 u8 bit_num = ppe_pos_bit % 8; 1994 u8 residue_bits; 1995 u8 res; 1996 1997 if (bit_num <= 5) 1998 return (ppe[byte_num] >> bit_num) & 1999 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2000 2001 /* 2002 * If bit_num > 5, we have to combine bits with next byte. 2003 * Calculate how many bits we need to take from current byte (called 2004 * here "residue_bits"), and add them to bits from next byte. 2005 */ 2006 2007 residue_bits = 8 - bit_num; 2008 2009 res = (ppe[byte_num + 1] & 2010 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2011 residue_bits; 2012 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2013 2014 return res; 2015 } 2016 2017 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2018 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2019 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2020 bool inheritance) 2021 { 2022 int i; 2023 2024 /* 2025 * FW currently supports only nss == MAX_HE_SUPP_NSS 2026 * 2027 * If nss > MAX: we can ignore values we don't support 2028 * If nss < MAX: we can set zeros in other streams 2029 */ 2030 if (nss > MAX_HE_SUPP_NSS) { 2031 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2032 MAX_HE_SUPP_NSS); 2033 nss = MAX_HE_SUPP_NSS; 2034 } 2035 2036 for (i = 0; i < nss; i++) { 2037 u8 ru_index_tmp = ru_index_bitmap << 1; 2038 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2039 u8 bw; 2040 2041 for (bw = 0; 2042 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2043 bw++) { 2044 ru_index_tmp >>= 1; 2045 2046 /* 2047 * According to the 11be spec, if for a specific BW the PPE Thresholds 2048 * isn't present - it should inherit the thresholds from the last 2049 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2050 * this inheritance - continue in this case 2051 */ 2052 if (!(ru_index_tmp & 1)) { 2053 if (inheritance) 2054 goto set_thresholds; 2055 else 2056 continue; 2057 } 2058 2059 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2060 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2061 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2062 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2063 2064 set_thresholds: 2065 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2066 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2067 } 2068 } 2069 } 2070 2071 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2072 struct ieee80211_link_sta *link_sta, 2073 struct iwl_he_pkt_ext_v2 *pkt_ext, 2074 bool inheritance) 2075 { 2076 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2077 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2078 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2079 u8 ru_index_bitmap = 2080 u8_get_bits(*ppe, 2081 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2082 /* Starting after PPE header */ 2083 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2084 2085 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2086 inheritance); 2087 } 2088 2089 static int 2090 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2091 u8 nominal_padding) 2092 { 2093 int low_th = -1; 2094 int high_th = -1; 2095 int i; 2096 2097 /* all the macros are the same for EHT and HE */ 2098 switch (nominal_padding) { 2099 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2100 low_th = IWL_HE_PKT_EXT_NONE; 2101 high_th = IWL_HE_PKT_EXT_NONE; 2102 break; 2103 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2104 low_th = IWL_HE_PKT_EXT_BPSK; 2105 high_th = IWL_HE_PKT_EXT_NONE; 2106 break; 2107 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2108 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2109 low_th = IWL_HE_PKT_EXT_NONE; 2110 high_th = IWL_HE_PKT_EXT_BPSK; 2111 break; 2112 } 2113 2114 if (low_th < 0 || high_th < 0) 2115 return -EINVAL; 2116 2117 /* Set the PPE thresholds accordingly */ 2118 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2119 u8 bw; 2120 2121 for (bw = 0; 2122 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2123 bw++) { 2124 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2125 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2126 } 2127 } 2128 2129 return 0; 2130 } 2131 2132 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2133 u8 nominal_padding) 2134 { 2135 int i; 2136 2137 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2138 u8 bw; 2139 2140 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2141 bw++) { 2142 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2143 2144 if (nominal_padding > 2145 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2146 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2147 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2148 else if (nominal_padding == 2149 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2150 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2151 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2152 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2153 } 2154 } 2155 } 2156 2157 /* Set the pkt_ext field according to PPE Thresholds element */ 2158 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2159 struct ieee80211_link_sta *link_sta, 2160 struct iwl_he_pkt_ext_v2 *pkt_ext) 2161 { 2162 u8 nominal_padding; 2163 int i, ret = 0; 2164 2165 if (WARN_ON(!link_sta)) 2166 return -EINVAL; 2167 2168 /* Initialize the PPE thresholds to "None" (7), as described in Table 2169 * 9-262ac of 80211.ax/D3.0. 2170 */ 2171 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2172 sizeof(struct iwl_he_pkt_ext_v2)); 2173 2174 if (link_sta->eht_cap.has_eht) { 2175 nominal_padding = 2176 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2177 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2178 2179 /* If PPE Thresholds exists, parse them into a FW-familiar 2180 * format. 2181 */ 2182 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2183 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2184 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2185 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2186 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2187 u8 ru_index_bitmap = 2188 u16_get_bits(*ppe, 2189 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2190 /* Starting after PPE header */ 2191 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2192 2193 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2194 ppe, ppe_pos_bit, true); 2195 /* EHT PPE Thresholds doesn't exist - set the API according to 2196 * HE PPE Tresholds 2197 */ 2198 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2199 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2200 /* Even though HE Capabilities IE doesn't contain PPE 2201 * Thresholds for BW 320Mhz, thresholds for this BW will 2202 * be filled in with the same values as 160Mhz, due to 2203 * the inheritance, as required. 2204 */ 2205 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2206 true); 2207 2208 /* According to the requirements, for MCSs 12-13 the 2209 * maximum value between HE PPE Threshold and Common 2210 * Nominal Packet Padding needs to be taken 2211 */ 2212 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2213 2214 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2215 * take the Thresholds from Common Nominal Packet Padding field 2216 */ 2217 } else { 2218 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2219 nominal_padding); 2220 } 2221 } else if (link_sta->he_cap.has_he) { 2222 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2223 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2224 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2225 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2226 false); 2227 /* PPE Thresholds doesn't exist - set the API PPE values 2228 * according to Common Nominal Packet Padding field. 2229 */ 2230 } else { 2231 nominal_padding = 2232 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2233 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2234 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2235 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2236 nominal_padding); 2237 } 2238 } 2239 2240 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2241 int bw; 2242 2243 for (bw = 0; 2244 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2245 bw++) { 2246 u8 *qam_th = 2247 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2248 2249 IWL_DEBUG_HT(mvm, 2250 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2251 i, bw, qam_th[0], qam_th[1]); 2252 } 2253 } 2254 return ret; 2255 } 2256 2257 /* 2258 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2259 * is enabled or not 2260 */ 2261 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2262 const struct iwl_mvm_vif_link_info *link_info, 2263 struct iwl_he_backoff_conf *trig_based_txf) 2264 { 2265 int i; 2266 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2267 bool mu_edca_enabled = true; 2268 2269 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2270 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2271 &link_info->queue_params[i].mu_edca_param_rec; 2272 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2273 2274 if (!link_info->queue_params[i].mu_edca) { 2275 mu_edca_enabled = false; 2276 break; 2277 } 2278 2279 trig_based_txf[ac].cwmin = 2280 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2281 trig_based_txf[ac].cwmax = 2282 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2283 trig_based_txf[ac].aifsn = 2284 cpu_to_le16(mu_edca->aifsn & 0xf); 2285 trig_based_txf[ac].mu_time = 2286 cpu_to_le16(mu_edca->mu_edca_timer); 2287 } 2288 2289 return mu_edca_enabled; 2290 } 2291 2292 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2293 { 2294 const struct ieee80211_supported_band *sband; 2295 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2296 2297 /* This capability is the same for all bands, 2298 * so take it from one of them. 2299 */ 2300 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2301 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2302 2303 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2304 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2305 } 2306 2307 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2308 struct ieee80211_link_sta *link_sta) 2309 { 2310 u8 *mac_cap_info = 2311 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2312 __le32 htc_flags = 0; 2313 2314 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2315 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2316 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2317 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2318 u8 link_adap = 2319 ((mac_cap_info[2] & 2320 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2321 (mac_cap_info[1] & 2322 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2323 2324 if (link_adap == 2) 2325 htc_flags |= 2326 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2327 else if (link_adap == 3) 2328 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2329 } 2330 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2331 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2332 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2333 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2334 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2335 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2336 2337 return htc_flags; 2338 } 2339 2340 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2341 struct ieee80211_vif *vif, u8 sta_id) 2342 { 2343 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2344 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2345 .sta_id = sta_id, 2346 .tid_limit = IWL_MAX_TID_COUNT, 2347 .bss_color = vif->bss_conf.he_bss_color.color, 2348 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2349 .frame_time_rts_th = 2350 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2351 }; 2352 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2353 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2354 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2355 int size; 2356 struct ieee80211_sta *sta; 2357 u32 flags; 2358 int i; 2359 void *cmd; 2360 2361 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2362 ver = 1; 2363 2364 switch (ver) { 2365 case 1: 2366 /* same layout as v2 except some data at the end */ 2367 cmd = &sta_ctxt_cmd_v2; 2368 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2369 break; 2370 case 2: 2371 cmd = &sta_ctxt_cmd_v2; 2372 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2373 break; 2374 case 3: 2375 cmd = &sta_ctxt_cmd; 2376 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2377 break; 2378 default: 2379 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2380 return; 2381 } 2382 2383 rcu_read_lock(); 2384 2385 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2386 if (IS_ERR_OR_NULL(sta)) { 2387 rcu_read_unlock(); 2388 WARN(1, "Can't find STA to configure HE\n"); 2389 return; 2390 } 2391 2392 if (!sta->deflink.he_cap.has_he) { 2393 rcu_read_unlock(); 2394 return; 2395 } 2396 2397 flags = 0; 2398 2399 /* Block 26-tone RU OFDMA transmissions */ 2400 if (mvmvif->deflink.he_ru_2mhz_block) 2401 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2402 2403 /* HTC flags */ 2404 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2405 2406 /* PPE Thresholds */ 2407 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2408 flags |= STA_CTXT_HE_PACKET_EXT; 2409 2410 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2411 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2412 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2413 2414 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2415 IEEE80211_HE_MAC_CAP2_ACK_EN) 2416 flags |= STA_CTXT_HE_ACK_ENABLED; 2417 2418 rcu_read_unlock(); 2419 2420 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2421 &sta_ctxt_cmd.trig_based_txf[0])) 2422 flags |= STA_CTXT_HE_MU_EDCA_CW; 2423 2424 if (vif->bss_conf.uora_exists) { 2425 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2426 2427 sta_ctxt_cmd.rand_alloc_ecwmin = 2428 vif->bss_conf.uora_ocw_range & 0x7; 2429 sta_ctxt_cmd.rand_alloc_ecwmax = 2430 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2431 } 2432 2433 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2434 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2435 2436 if (vif->bss_conf.nontransmitted) { 2437 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2438 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2439 vif->bss_conf.transmitter_bssid); 2440 sta_ctxt_cmd.max_bssid_indicator = 2441 vif->bss_conf.bssid_indicator; 2442 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2443 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2444 sta_ctxt_cmd.profile_periodicity = 2445 vif->bss_conf.profile_periodicity; 2446 } 2447 2448 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2449 2450 if (ver < 3) { 2451 /* fields before pkt_ext */ 2452 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2453 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2454 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2455 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2456 2457 /* pkt_ext */ 2458 for (i = 0; 2459 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2460 i++) { 2461 u8 bw; 2462 2463 for (bw = 0; 2464 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2465 bw++) { 2466 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2467 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2468 2469 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2470 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2471 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2472 } 2473 } 2474 2475 /* fields after pkt_ext */ 2476 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2477 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2478 sizeof(sta_ctxt_cmd_v2) - 2479 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2480 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2481 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2482 (u8 *)&sta_ctxt_cmd + 2483 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2484 sizeof(sta_ctxt_cmd) - 2485 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2486 sta_ctxt_cmd_v2.reserved3 = 0; 2487 } 2488 2489 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2490 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2491 } 2492 2493 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2494 u32 duration_override) 2495 { 2496 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2497 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2498 2499 if (duration_override > duration) 2500 duration = duration_override; 2501 2502 /* Try really hard to protect the session and hear a beacon 2503 * The new session protection command allows us to protect the 2504 * session for a much longer time since the firmware will internally 2505 * create two events: a 300TU one with a very high priority that 2506 * won't be fragmented which should be enough for 99% of the cases, 2507 * and another one (which we configure here to be 900TU long) which 2508 * will have a slightly lower priority, but more importantly, can be 2509 * fragmented so that it'll allow other activities to run. 2510 */ 2511 if (fw_has_capa(&mvm->fw->ucode_capa, 2512 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2513 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2514 min_duration, false); 2515 else 2516 iwl_mvm_protect_session(mvm, vif, duration, 2517 min_duration, 500, false); 2518 } 2519 2520 /* Handle association common part to MLD and non-MLD modes */ 2521 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2522 struct ieee80211_vif *vif, 2523 u64 changes) 2524 { 2525 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2526 int ret; 2527 2528 /* The firmware tracks the MU-MIMO group on its own. 2529 * However, on HW restart we should restore this data. 2530 */ 2531 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2532 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2533 ret = iwl_mvm_update_mu_groups(mvm, vif); 2534 if (ret) 2535 IWL_ERR(mvm, 2536 "failed to update VHT MU_MIMO groups\n"); 2537 } 2538 2539 iwl_mvm_recalc_multicast(mvm); 2540 2541 /* reset rssi values */ 2542 mvmvif->bf_data.ave_beacon_signal = 0; 2543 2544 iwl_mvm_bt_coex_vif_change(mvm); 2545 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2546 IEEE80211_SMPS_AUTOMATIC); 2547 if (fw_has_capa(&mvm->fw->ucode_capa, 2548 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2549 iwl_mvm_config_scan(mvm); 2550 } 2551 2552 /* Execute the common part for MLD and non-MLD modes */ 2553 void 2554 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2555 struct ieee80211_vif *vif, 2556 struct ieee80211_bss_conf *link_conf, 2557 u64 changes) 2558 { 2559 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2560 int ret; 2561 2562 if (changes & BSS_CHANGED_BEACON_INFO) { 2563 /* We received a beacon from the associated AP so 2564 * remove the session protection. 2565 */ 2566 iwl_mvm_stop_session_protection(mvm, vif); 2567 2568 iwl_mvm_sf_update(mvm, vif, false); 2569 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2570 } 2571 2572 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2573 /* Send power command on every beacon change, 2574 * because we may have not enabled beacon abort yet. 2575 */ 2576 BSS_CHANGED_BEACON_INFO)) { 2577 ret = iwl_mvm_power_update_mac(mvm); 2578 if (ret) 2579 IWL_ERR(mvm, "failed to update power mode\n"); 2580 } 2581 2582 if (changes & BSS_CHANGED_CQM) { 2583 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2584 /* reset cqm events tracking */ 2585 mvmvif->bf_data.last_cqm_event = 0; 2586 if (mvmvif->bf_data.bf_enabled) { 2587 /* FIXME: need to update per link when FW API will 2588 * support it 2589 */ 2590 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2591 if (ret) 2592 IWL_ERR(mvm, 2593 "failed to update CQM thresholds\n"); 2594 } 2595 } 2596 2597 if (changes & BSS_CHANGED_BANDWIDTH) 2598 iwl_mvm_update_link_smps(vif, link_conf); 2599 } 2600 2601 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2602 struct ieee80211_vif *vif, 2603 struct ieee80211_bss_conf *bss_conf, 2604 u64 changes) 2605 { 2606 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2607 int ret; 2608 2609 /* 2610 * Re-calculate the tsf id, as the leader-follower relations depend 2611 * on the beacon interval, which was not known when the station 2612 * interface was added. 2613 */ 2614 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2615 if ((vif->bss_conf.he_support && 2616 !iwlwifi_mod_params.disable_11ax) || 2617 (vif->bss_conf.eht_support && 2618 !iwlwifi_mod_params.disable_11be)) 2619 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2620 2621 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2622 } 2623 2624 /* Update MU EDCA params */ 2625 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2626 vif->cfg.assoc && 2627 ((vif->bss_conf.he_support && 2628 !iwlwifi_mod_params.disable_11ax) || 2629 (vif->bss_conf.eht_support && 2630 !iwlwifi_mod_params.disable_11be))) 2631 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2632 2633 /* 2634 * If we're not associated yet, take the (new) BSSID before associating 2635 * so the firmware knows. If we're already associated, then use the old 2636 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2637 * branch for disassociation below. 2638 */ 2639 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2640 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2641 2642 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2643 if (ret) 2644 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2645 2646 /* after sending it once, adopt mac80211 data */ 2647 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2648 mvmvif->associated = vif->cfg.assoc; 2649 2650 if (changes & BSS_CHANGED_ASSOC) { 2651 if (vif->cfg.assoc) { 2652 /* clear statistics to get clean beacon counter */ 2653 iwl_mvm_request_statistics(mvm, true); 2654 memset(&mvmvif->deflink.beacon_stats, 0, 2655 sizeof(mvmvif->deflink.beacon_stats)); 2656 2657 /* add quota for this interface */ 2658 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2659 if (ret) { 2660 IWL_ERR(mvm, "failed to update quotas\n"); 2661 return; 2662 } 2663 2664 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2665 &mvm->status) && 2666 !fw_has_capa(&mvm->fw->ucode_capa, 2667 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2668 /* 2669 * If we're restarting then the firmware will 2670 * obviously have lost synchronisation with 2671 * the AP. It will attempt to synchronise by 2672 * itself, but we can make it more reliable by 2673 * scheduling a session protection time event. 2674 * 2675 * The firmware needs to receive a beacon to 2676 * catch up with synchronisation, use 110% of 2677 * the beacon interval. 2678 * 2679 * Set a large maximum delay to allow for more 2680 * than a single interface. 2681 * 2682 * For new firmware versions, rely on the 2683 * firmware. This is relevant for DCM scenarios 2684 * only anyway. 2685 */ 2686 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2687 iwl_mvm_protect_session(mvm, vif, dur, dur, 2688 5 * dur, false); 2689 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2690 &mvm->status) && 2691 !vif->bss_conf.dtim_period) { 2692 /* 2693 * If we're not restarting and still haven't 2694 * heard a beacon (dtim period unknown) then 2695 * make sure we still have enough minimum time 2696 * remaining in the time event, since the auth 2697 * might actually have taken quite a while 2698 * (especially for SAE) and so the remaining 2699 * time could be small without us having heard 2700 * a beacon yet. 2701 */ 2702 iwl_mvm_protect_assoc(mvm, vif, 0); 2703 } 2704 2705 iwl_mvm_sf_update(mvm, vif, false); 2706 iwl_mvm_power_vif_assoc(mvm, vif); 2707 if (vif->p2p) { 2708 iwl_mvm_update_smps(mvm, vif, 2709 IWL_MVM_SMPS_REQ_PROT, 2710 IEEE80211_SMPS_DYNAMIC, 0); 2711 } 2712 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2713 iwl_mvm_mei_host_disassociated(mvm); 2714 /* 2715 * If update fails - SF might be running in associated 2716 * mode while disassociated - which is forbidden. 2717 */ 2718 ret = iwl_mvm_sf_update(mvm, vif, false); 2719 WARN_ONCE(ret && 2720 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2721 &mvm->status), 2722 "Failed to update SF upon disassociation\n"); 2723 2724 /* 2725 * If we get an assert during the connection (after the 2726 * station has been added, but before the vif is set 2727 * to associated), mac80211 will re-add the station and 2728 * then configure the vif. Since the vif is not 2729 * associated, we would remove the station here and 2730 * this would fail the recovery. 2731 */ 2732 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2733 &mvm->status)) { 2734 /* first remove remaining keys */ 2735 iwl_mvm_sec_key_remove_ap(mvm, vif, 2736 &mvmvif->deflink, 0); 2737 2738 /* 2739 * Remove AP station now that 2740 * the MAC is unassoc 2741 */ 2742 ret = iwl_mvm_rm_sta_id(mvm, vif, 2743 mvmvif->deflink.ap_sta_id); 2744 if (ret) 2745 IWL_ERR(mvm, 2746 "failed to remove AP station\n"); 2747 2748 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2749 } 2750 2751 /* remove quota for this interface */ 2752 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2753 if (ret) 2754 IWL_ERR(mvm, "failed to update quotas\n"); 2755 2756 /* this will take the cleared BSSID from bss_conf */ 2757 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2758 if (ret) 2759 IWL_ERR(mvm, 2760 "failed to update MAC %pM (clear after unassoc)\n", 2761 vif->addr); 2762 } 2763 2764 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2765 } 2766 2767 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2768 changes); 2769 } 2770 2771 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2772 struct ieee80211_vif *vif, 2773 int *ret) 2774 { 2775 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2776 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2777 int i; 2778 2779 lockdep_assert_held(&mvm->mutex); 2780 2781 mvmvif->ap_assoc_sta_count = 0; 2782 2783 /* must be set before quota calculations */ 2784 mvmvif->ap_ibss_active = true; 2785 2786 /* send all the early keys to the device now */ 2787 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2788 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2789 2790 if (!key) 2791 continue; 2792 2793 mvmvif->ap_early_keys[i] = NULL; 2794 2795 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2796 if (*ret) 2797 return true; 2798 } 2799 2800 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2801 iwl_mvm_vif_set_low_latency(mvmvif, true, 2802 LOW_LATENCY_VIF_TYPE); 2803 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2804 } 2805 2806 /* power updated needs to be done before quotas */ 2807 iwl_mvm_power_update_mac(mvm); 2808 2809 return false; 2810 } 2811 2812 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2813 struct ieee80211_vif *vif, 2814 struct ieee80211_bss_conf *link_conf) 2815 { 2816 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2817 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2818 int ret; 2819 2820 mutex_lock(&mvm->mutex); 2821 2822 /* 2823 * Re-calculate the tsf id, as the leader-follower relations depend on 2824 * the beacon interval, which was not known when the AP interface 2825 * was added. 2826 */ 2827 if (vif->type == NL80211_IFTYPE_AP) 2828 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2829 2830 /* For older devices need to send beacon template before adding mac 2831 * context. For the newer, the beacon is a resource that belongs to a 2832 * MAC, so need to send beacon template after adding the mac. 2833 */ 2834 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2835 /* Add the mac context */ 2836 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2837 if (ret) 2838 goto out_unlock; 2839 2840 /* Send the beacon template */ 2841 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2842 if (ret) 2843 goto out_unlock; 2844 } else { 2845 /* Send the beacon template */ 2846 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2847 if (ret) 2848 goto out_unlock; 2849 2850 /* Add the mac context */ 2851 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2852 if (ret) 2853 goto out_unlock; 2854 } 2855 2856 /* Perform the binding */ 2857 ret = iwl_mvm_binding_add_vif(mvm, vif); 2858 if (ret) 2859 goto out_remove; 2860 2861 /* 2862 * This is not very nice, but the simplest: 2863 * For older FWs adding the mcast sta before the bcast station may 2864 * cause assert 0x2b00. 2865 * This is fixed in later FW so make the order of removal depend on 2866 * the TLV 2867 */ 2868 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2869 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2870 if (ret) 2871 goto out_unbind; 2872 /* 2873 * Send the bcast station. At this stage the TBTT and DTIM time 2874 * events are added and applied to the scheduler 2875 */ 2876 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2877 if (ret) { 2878 iwl_mvm_rm_mcast_sta(mvm, vif); 2879 goto out_unbind; 2880 } 2881 } else { 2882 /* 2883 * Send the bcast station. At this stage the TBTT and DTIM time 2884 * events are added and applied to the scheduler 2885 */ 2886 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2887 if (ret) 2888 goto out_unbind; 2889 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2890 if (ret) { 2891 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2892 goto out_unbind; 2893 } 2894 } 2895 2896 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2897 goto out_failed; 2898 2899 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2900 if (ret) 2901 goto out_failed; 2902 2903 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2904 if (vif->p2p && mvm->p2p_device_vif) 2905 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2906 2907 iwl_mvm_bt_coex_vif_change(mvm); 2908 2909 /* we don't support TDLS during DCM */ 2910 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2911 iwl_mvm_teardown_tdls_peers(mvm); 2912 2913 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2914 2915 goto out_unlock; 2916 2917 out_failed: 2918 iwl_mvm_power_update_mac(mvm); 2919 mvmvif->ap_ibss_active = false; 2920 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2921 iwl_mvm_rm_mcast_sta(mvm, vif); 2922 out_unbind: 2923 iwl_mvm_binding_remove_vif(mvm, vif); 2924 out_remove: 2925 iwl_mvm_mac_ctxt_remove(mvm, vif); 2926 out_unlock: 2927 mutex_unlock(&mvm->mutex); 2928 return ret; 2929 } 2930 2931 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2932 struct ieee80211_vif *vif, 2933 struct ieee80211_bss_conf *link_conf) 2934 { 2935 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2936 } 2937 2938 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2939 struct ieee80211_vif *vif) 2940 { 2941 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2942 } 2943 2944 /* Common part for MLD and non-MLD ops */ 2945 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2946 struct ieee80211_vif *vif) 2947 { 2948 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2949 2950 lockdep_assert_held(&mvm->mutex); 2951 2952 iwl_mvm_prepare_mac_removal(mvm, vif); 2953 2954 /* Handle AP stop while in CSA */ 2955 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2956 iwl_mvm_remove_time_event(mvm, mvmvif, 2957 &mvmvif->time_event_data); 2958 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2959 mvmvif->csa_countdown = false; 2960 } 2961 2962 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2963 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2964 mvm->csa_tx_block_bcn_timeout = 0; 2965 } 2966 2967 mvmvif->ap_ibss_active = false; 2968 mvm->ap_last_beacon_gp2 = 0; 2969 2970 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2971 iwl_mvm_vif_set_low_latency(mvmvif, false, 2972 LOW_LATENCY_VIF_TYPE); 2973 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2974 } 2975 2976 iwl_mvm_bt_coex_vif_change(mvm); 2977 } 2978 2979 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2980 struct ieee80211_vif *vif, 2981 struct ieee80211_bss_conf *link_conf) 2982 { 2983 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2984 2985 mutex_lock(&mvm->mutex); 2986 2987 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2988 2989 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2990 if (vif->p2p && mvm->p2p_device_vif) 2991 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2992 2993 iwl_mvm_update_quotas(mvm, false, NULL); 2994 2995 iwl_mvm_ftm_responder_clear(mvm, vif); 2996 2997 /* 2998 * This is not very nice, but the simplest: 2999 * For older FWs removing the mcast sta before the bcast station may 3000 * cause assert 0x2b00. 3001 * This is fixed in later FW (which will stop beaconing when removing 3002 * bcast station). 3003 * So make the order of removal depend on the TLV 3004 */ 3005 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3006 iwl_mvm_rm_mcast_sta(mvm, vif); 3007 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3008 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3009 iwl_mvm_rm_mcast_sta(mvm, vif); 3010 iwl_mvm_binding_remove_vif(mvm, vif); 3011 3012 iwl_mvm_power_update_mac(mvm); 3013 3014 iwl_mvm_mac_ctxt_remove(mvm, vif); 3015 3016 mutex_unlock(&mvm->mutex); 3017 } 3018 3019 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3020 struct ieee80211_vif *vif, 3021 struct ieee80211_bss_conf *link_conf) 3022 { 3023 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3024 } 3025 3026 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3027 struct ieee80211_vif *vif) 3028 { 3029 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3030 } 3031 3032 static void 3033 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3034 struct ieee80211_vif *vif, 3035 struct ieee80211_bss_conf *bss_conf, 3036 u64 changes) 3037 { 3038 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3039 3040 /* Changes will be applied when the AP/IBSS is started */ 3041 if (!mvmvif->ap_ibss_active) 3042 return; 3043 3044 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3045 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3046 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3047 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3048 3049 /* Need to send a new beacon template to the FW */ 3050 if (changes & BSS_CHANGED_BEACON && 3051 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3052 IWL_WARN(mvm, "Failed updating beacon data\n"); 3053 3054 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3055 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3056 3057 if (ret) 3058 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3059 ret); 3060 } 3061 3062 } 3063 3064 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3065 struct ieee80211_vif *vif, 3066 struct ieee80211_bss_conf *bss_conf, 3067 u64 changes) 3068 { 3069 static const struct iwl_mvm_bss_info_changed_ops callbacks = { 3070 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3071 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3072 }; 3073 3074 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3075 changes); 3076 } 3077 3078 void 3079 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3080 struct ieee80211_vif *vif, 3081 struct ieee80211_bss_conf *bss_conf, 3082 const struct iwl_mvm_bss_info_changed_ops *callbacks, 3083 u64 changes) 3084 { 3085 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3086 3087 mutex_lock(&mvm->mutex); 3088 3089 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3090 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3091 3092 switch (vif->type) { 3093 case NL80211_IFTYPE_STATION: 3094 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3095 break; 3096 case NL80211_IFTYPE_AP: 3097 case NL80211_IFTYPE_ADHOC: 3098 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3099 changes); 3100 break; 3101 case NL80211_IFTYPE_MONITOR: 3102 if (changes & BSS_CHANGED_MU_GROUPS) 3103 iwl_mvm_update_mu_groups(mvm, vif); 3104 break; 3105 default: 3106 /* shouldn't happen */ 3107 WARN_ON_ONCE(1); 3108 } 3109 3110 if (changes & BSS_CHANGED_TXPOWER) { 3111 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3112 bss_conf->txpower); 3113 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3114 } 3115 3116 mutex_unlock(&mvm->mutex); 3117 } 3118 3119 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3120 struct ieee80211_scan_request *hw_req) 3121 { 3122 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3123 int ret; 3124 3125 if (hw_req->req.n_channels == 0 || 3126 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3127 return -EINVAL; 3128 3129 mutex_lock(&mvm->mutex); 3130 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3131 mutex_unlock(&mvm->mutex); 3132 3133 return ret; 3134 } 3135 3136 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3137 struct ieee80211_vif *vif) 3138 { 3139 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3140 3141 mutex_lock(&mvm->mutex); 3142 3143 /* Due to a race condition, it's possible that mac80211 asks 3144 * us to stop a hw_scan when it's already stopped. This can 3145 * happen, for instance, if we stopped the scan ourselves, 3146 * called ieee80211_scan_completed() and the userspace called 3147 * cancel scan scan before ieee80211_scan_work() could run. 3148 * To handle that, simply return if the scan is not running. 3149 */ 3150 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3151 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3152 3153 mutex_unlock(&mvm->mutex); 3154 } 3155 3156 void 3157 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3158 struct ieee80211_sta *sta, u16 tids, 3159 int num_frames, 3160 enum ieee80211_frame_release_type reason, 3161 bool more_data) 3162 { 3163 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3164 3165 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3166 3167 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3168 tids, more_data, false); 3169 } 3170 3171 void 3172 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3173 struct ieee80211_sta *sta, u16 tids, 3174 int num_frames, 3175 enum ieee80211_frame_release_type reason, 3176 bool more_data) 3177 { 3178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3179 3180 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3181 3182 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3183 tids, more_data, true); 3184 } 3185 3186 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3187 enum sta_notify_cmd cmd, 3188 struct ieee80211_sta *sta) 3189 { 3190 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3191 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3192 unsigned long txqs = 0, tids = 0; 3193 int tid; 3194 3195 /* 3196 * If we have TVQM then we get too high queue numbers - luckily 3197 * we really shouldn't get here with that because such hardware 3198 * should have firmware supporting buffer station offload. 3199 */ 3200 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3201 return; 3202 3203 spin_lock_bh(&mvmsta->lock); 3204 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3205 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3206 3207 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3208 continue; 3209 3210 __set_bit(tid_data->txq_id, &txqs); 3211 3212 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3213 continue; 3214 3215 __set_bit(tid, &tids); 3216 } 3217 3218 switch (cmd) { 3219 case STA_NOTIFY_SLEEP: 3220 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3221 ieee80211_sta_set_buffered(sta, tid, true); 3222 3223 if (txqs) 3224 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3225 /* 3226 * The fw updates the STA to be asleep. Tx packets on the Tx 3227 * queues to this station will not be transmitted. The fw will 3228 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3229 */ 3230 break; 3231 case STA_NOTIFY_AWAKE: 3232 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3233 break; 3234 3235 if (txqs) 3236 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3237 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3238 break; 3239 default: 3240 break; 3241 } 3242 spin_unlock_bh(&mvmsta->lock); 3243 } 3244 3245 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3246 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3247 { 3248 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3249 } 3250 3251 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3252 { 3253 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3254 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3255 struct ieee80211_sta *sta; 3256 struct iwl_mvm_sta *mvmsta; 3257 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3258 3259 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3260 return; 3261 3262 rcu_read_lock(); 3263 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3264 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3265 rcu_read_unlock(); 3266 return; 3267 } 3268 3269 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3270 3271 if (!mvmsta->vif || 3272 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3273 rcu_read_unlock(); 3274 return; 3275 } 3276 3277 if (mvmsta->sleeping != sleeping) { 3278 mvmsta->sleeping = sleeping; 3279 __iwl_mvm_mac_sta_notify(mvm->hw, 3280 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3281 sta); 3282 ieee80211_sta_ps_transition(sta, sleeping); 3283 } 3284 3285 if (sleeping) { 3286 switch (notif->type) { 3287 case IWL_MVM_PM_EVENT_AWAKE: 3288 case IWL_MVM_PM_EVENT_ASLEEP: 3289 break; 3290 case IWL_MVM_PM_EVENT_UAPSD: 3291 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3292 break; 3293 case IWL_MVM_PM_EVENT_PS_POLL: 3294 ieee80211_sta_pspoll(sta); 3295 break; 3296 default: 3297 break; 3298 } 3299 } 3300 3301 rcu_read_unlock(); 3302 } 3303 3304 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3305 struct ieee80211_vif *vif, 3306 struct ieee80211_sta *sta) 3307 { 3308 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3309 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3310 unsigned int link_id; 3311 3312 /* 3313 * This is called before mac80211 does RCU synchronisation, 3314 * so here we already invalidate our internal RCU-protected 3315 * station pointer. The rest of the code will thus no longer 3316 * be able to find the station this way, and we don't rely 3317 * on further RCU synchronisation after the sta_state() 3318 * callback deleted the station. 3319 * Since there's mvm->mutex here, no need to have RCU lock for 3320 * mvm_sta->link access. 3321 */ 3322 mutex_lock(&mvm->mutex); 3323 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3324 struct iwl_mvm_link_sta *link_sta; 3325 u32 sta_id; 3326 3327 if (!mvm_sta->link[link_id]) 3328 continue; 3329 3330 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3331 lockdep_is_held(&mvm->mutex)); 3332 sta_id = link_sta->sta_id; 3333 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3334 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3335 ERR_PTR(-ENOENT)); 3336 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3337 } 3338 } 3339 mutex_unlock(&mvm->mutex); 3340 } 3341 3342 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3343 const u8 *bssid) 3344 { 3345 int i; 3346 3347 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3348 struct iwl_mvm_tcm_mac *mdata; 3349 3350 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3351 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3352 mdata->opened_rx_ba_sessions = false; 3353 } 3354 3355 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3356 return; 3357 3358 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3359 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3360 return; 3361 } 3362 3363 if (!vif->p2p && 3364 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3365 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3366 return; 3367 } 3368 3369 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3370 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3371 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3372 return; 3373 } 3374 } 3375 3376 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3377 } 3378 3379 static void 3380 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3381 struct ieee80211_vif *vif, u8 *peer_addr, 3382 enum nl80211_tdls_operation action) 3383 { 3384 struct iwl_fw_dbg_trigger_tlv *trig; 3385 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3386 3387 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3388 FW_DBG_TRIGGER_TDLS); 3389 if (!trig) 3390 return; 3391 3392 tdls_trig = (void *)trig->data; 3393 3394 if (!(tdls_trig->action_bitmap & BIT(action))) 3395 return; 3396 3397 if (tdls_trig->peer_mode && 3398 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3399 return; 3400 3401 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3402 "TDLS event occurred, peer %pM, action %d", 3403 peer_addr, action); 3404 } 3405 3406 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3407 bool tolerated; 3408 }; 3409 3410 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3411 struct cfg80211_bss *bss, 3412 void *_data) 3413 { 3414 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3415 const struct cfg80211_bss_ies *ies; 3416 const struct element *elem; 3417 3418 rcu_read_lock(); 3419 ies = rcu_dereference(bss->ies); 3420 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3421 ies->len); 3422 3423 if (!elem || elem->datalen < 10 || 3424 !(elem->data[10] & 3425 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3426 data->tolerated = false; 3427 } 3428 rcu_read_unlock(); 3429 } 3430 3431 static void 3432 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3433 struct ieee80211_vif *vif, 3434 unsigned int link_id, 3435 struct ieee80211_bss_conf *link_conf) 3436 { 3437 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3438 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3439 .tolerated = true, 3440 }; 3441 3442 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3443 !mvmvif->link[link_id])) 3444 return; 3445 3446 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3447 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3448 return; 3449 } 3450 3451 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3452 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3453 &iter_data); 3454 3455 /* 3456 * If there is at least one AP on radar channel that cannot 3457 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3458 */ 3459 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3460 } 3461 3462 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3463 struct ieee80211_vif *vif) 3464 { 3465 struct ieee80211_supported_band *sband; 3466 const struct ieee80211_sta_he_cap *he_cap; 3467 3468 if (vif->type != NL80211_IFTYPE_STATION) 3469 return; 3470 3471 if (!mvm->cca_40mhz_workaround) 3472 return; 3473 3474 /* decrement and check that we reached zero */ 3475 mvm->cca_40mhz_workaround--; 3476 if (mvm->cca_40mhz_workaround) 3477 return; 3478 3479 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3480 3481 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3482 3483 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3484 3485 if (he_cap) { 3486 /* we know that ours is writable */ 3487 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3488 3489 he->he_cap_elem.phy_cap_info[0] |= 3490 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3491 } 3492 } 3493 3494 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3495 struct ieee80211_vif *vif, 3496 struct iwl_mvm_sta *mvm_sta) 3497 { 3498 #if IS_ENABLED(CONFIG_IWLMEI) 3499 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3500 struct iwl_mei_conn_info conn_info = { 3501 .ssid_len = vif->cfg.ssid_len, 3502 }; 3503 3504 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3505 return; 3506 3507 if (!mvm->mei_registered) 3508 return; 3509 3510 /* FIXME: MEI needs to be updated for MLO */ 3511 if (!vif->bss_conf.chandef.chan) 3512 return; 3513 3514 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3515 3516 switch (mvm_sta->pairwise_cipher) { 3517 case WLAN_CIPHER_SUITE_TKIP: 3518 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3519 break; 3520 case WLAN_CIPHER_SUITE_CCMP: 3521 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3522 break; 3523 case WLAN_CIPHER_SUITE_GCMP: 3524 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3525 break; 3526 case WLAN_CIPHER_SUITE_GCMP_256: 3527 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3528 break; 3529 case 0: 3530 /* open profile */ 3531 break; 3532 default: 3533 /* cipher not supported, don't send anything to iwlmei */ 3534 return; 3535 } 3536 3537 switch (mvmvif->rekey_data.akm) { 3538 case WLAN_AKM_SUITE_SAE & 0xff: 3539 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3540 break; 3541 case WLAN_AKM_SUITE_PSK & 0xff: 3542 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3543 break; 3544 case WLAN_AKM_SUITE_8021X & 0xff: 3545 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3546 break; 3547 case 0: 3548 /* open profile */ 3549 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3550 break; 3551 default: 3552 /* auth method / AKM not supported */ 3553 /* TODO: All the FT vesions of these? */ 3554 return; 3555 } 3556 3557 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3558 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3559 3560 /* TODO: add support for collocated AP data */ 3561 iwl_mei_host_associated(&conn_info, NULL); 3562 #endif 3563 } 3564 3565 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3566 struct ieee80211_vif *vif, 3567 bool force_assoc_off) 3568 { 3569 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3570 } 3571 3572 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3573 struct ieee80211_vif *vif, 3574 struct ieee80211_sta *sta, 3575 enum ieee80211_sta_state old_state, 3576 enum ieee80211_sta_state new_state) 3577 { 3578 static const struct iwl_mvm_sta_state_ops callbacks = { 3579 .add_sta = iwl_mvm_add_sta, 3580 .update_sta = iwl_mvm_update_sta, 3581 .rm_sta = iwl_mvm_rm_sta, 3582 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3583 }; 3584 3585 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3586 &callbacks); 3587 } 3588 3589 /* FIXME: temporary making two assumptions in all sta handling functions: 3590 * (1) when setting sta state, the link exists and protected 3591 * (2) if a link is valid in sta then it's valid in vif (can 3592 * use same index in the link array) 3593 */ 3594 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3595 struct ieee80211_vif *vif, 3596 struct ieee80211_sta *sta) 3597 { 3598 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3599 unsigned int link_id; 3600 3601 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3602 struct ieee80211_bss_conf *conf = 3603 link_conf_dereference_check(vif, link_id); 3604 struct ieee80211_link_sta *link_sta = 3605 link_sta_dereference_check(sta, link_id); 3606 3607 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3608 continue; 3609 3610 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3611 mvmvif->link[link_id]->phy_ctxt->channel->band); 3612 } 3613 } 3614 3615 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3616 3617 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3618 struct ieee80211_vif *vif, 3619 struct ieee80211_sta *sta) 3620 { 3621 struct ieee80211_link_sta *link_sta; 3622 unsigned int link_id; 3623 3624 /* Beacon interval check - firmware will crash if the beacon 3625 * interval is less than 16. We can't avoid connecting at all, 3626 * so refuse the station state change, this will cause mac80211 3627 * to abandon attempts to connect to this AP, and eventually 3628 * wpa_s will blocklist the AP... 3629 */ 3630 3631 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3632 struct ieee80211_bss_conf *link_conf = 3633 link_conf_dereference_protected(vif, link_id); 3634 3635 if (!link_conf) 3636 continue; 3637 3638 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3639 IWL_ERR(mvm, 3640 "Beacon interval %d for AP %pM is too small\n", 3641 link_conf->beacon_int, link_sta->addr); 3642 return false; 3643 } 3644 3645 link_conf->he_support = link_sta->he_cap.has_he; 3646 } 3647 3648 return true; 3649 } 3650 3651 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3652 struct ieee80211_vif *vif, 3653 struct ieee80211_sta *sta, 3654 bool is_sta) 3655 { 3656 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3657 struct ieee80211_link_sta *link_sta; 3658 unsigned int link_id; 3659 3660 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3661 struct ieee80211_bss_conf *link_conf = 3662 link_conf_dereference_protected(vif, link_id); 3663 3664 if (!link_conf || !mvmvif->link[link_id]) 3665 continue; 3666 3667 link_conf->he_support = link_sta->he_cap.has_he; 3668 3669 if (is_sta) { 3670 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3671 if (link_sta->he_cap.has_he) 3672 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3673 link_id, 3674 link_conf); 3675 } 3676 } 3677 } 3678 3679 static int 3680 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3681 struct ieee80211_vif *vif, 3682 struct ieee80211_sta *sta, 3683 const struct iwl_mvm_sta_state_ops *callbacks) 3684 { 3685 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3686 struct ieee80211_link_sta *link_sta; 3687 unsigned int i; 3688 int ret; 3689 3690 lockdep_assert_held(&mvm->mutex); 3691 3692 if (vif->type == NL80211_IFTYPE_STATION && 3693 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3694 return -EINVAL; 3695 3696 if (sta->tdls && 3697 (vif->p2p || 3698 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3699 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3700 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3701 return -EBUSY; 3702 } 3703 3704 ret = callbacks->add_sta(mvm, vif, sta); 3705 if (sta->tdls && ret == 0) { 3706 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3707 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3708 NL80211_TDLS_SETUP); 3709 } 3710 3711 for_each_sta_active_link(vif, sta, link_sta, i) 3712 link_sta->agg.max_rc_amsdu_len = 1; 3713 3714 ieee80211_sta_recalc_aggregates(sta); 3715 3716 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3717 mvmvif->ap_sta = sta; 3718 3719 return 0; 3720 } 3721 3722 static int 3723 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3724 struct iwl_mvm *mvm, 3725 struct ieee80211_vif *vif, 3726 struct ieee80211_sta *sta, 3727 const struct iwl_mvm_sta_state_ops *callbacks) 3728 { 3729 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3730 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3731 struct ieee80211_link_sta *link_sta; 3732 unsigned int link_id; 3733 3734 lockdep_assert_held(&mvm->mutex); 3735 3736 if (vif->type == NL80211_IFTYPE_AP) { 3737 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3738 mvmvif->ap_assoc_sta_count++; 3739 callbacks->mac_ctxt_changed(mvm, vif, false); 3740 3741 /* since the below is not for MLD API, it's ok to use 3742 * the default bss_conf 3743 */ 3744 if (!mvm->mld_api_is_used && 3745 ((vif->bss_conf.he_support && 3746 !iwlwifi_mod_params.disable_11ax) || 3747 (vif->bss_conf.eht_support && 3748 !iwlwifi_mod_params.disable_11be))) 3749 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3750 } else if (vif->type == NL80211_IFTYPE_STATION) { 3751 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3752 3753 callbacks->mac_ctxt_changed(mvm, vif, false); 3754 3755 if (!mvm->mld_api_is_used) 3756 goto out; 3757 3758 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3759 struct ieee80211_bss_conf *link_conf = 3760 link_conf_dereference_protected(vif, link_id); 3761 3762 if (WARN_ON(!link_conf)) 3763 return -EINVAL; 3764 if (!mvmvif->link[link_id]) 3765 continue; 3766 3767 iwl_mvm_link_changed(mvm, vif, link_conf, 3768 LINK_CONTEXT_MODIFY_ALL & 3769 ~LINK_CONTEXT_MODIFY_ACTIVE, 3770 true); 3771 } 3772 } 3773 3774 out: 3775 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3776 3777 return callbacks->update_sta(mvm, vif, sta); 3778 } 3779 3780 static int 3781 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3782 struct ieee80211_vif *vif, 3783 struct ieee80211_sta *sta, 3784 const struct iwl_mvm_sta_state_ops *callbacks) 3785 { 3786 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3787 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3788 3789 lockdep_assert_held(&mvm->mutex); 3790 3791 /* we don't support TDLS during DCM */ 3792 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3793 iwl_mvm_teardown_tdls_peers(mvm); 3794 3795 if (sta->tdls) { 3796 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3797 NL80211_TDLS_ENABLE_LINK); 3798 } else { 3799 /* enable beacon filtering */ 3800 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3801 3802 mvmvif->authorized = 1; 3803 3804 callbacks->mac_ctxt_changed(mvm, vif, false); 3805 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3806 } 3807 3808 mvm_sta->authorized = true; 3809 3810 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3811 3812 return 0; 3813 } 3814 3815 static int 3816 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3817 struct ieee80211_vif *vif, 3818 struct ieee80211_sta *sta, 3819 const struct iwl_mvm_sta_state_ops *callbacks) 3820 { 3821 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3822 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3823 3824 lockdep_assert_held(&mvm->mutex); 3825 3826 mvmsta->authorized = false; 3827 3828 /* once we move into assoc state, need to update rate scale to 3829 * disable using wide bandwidth 3830 */ 3831 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3832 3833 if (!sta->tdls) { 3834 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3835 * yet to avoid sending high prio again for a little 3836 * time. 3837 */ 3838 mvmvif->authorized = 0; 3839 3840 /* disable beacon filtering */ 3841 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3842 } 3843 3844 return 0; 3845 } 3846 3847 /* Common part for MLD and non-MLD modes */ 3848 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3849 struct ieee80211_vif *vif, 3850 struct ieee80211_sta *sta, 3851 enum ieee80211_sta_state old_state, 3852 enum ieee80211_sta_state new_state, 3853 const struct iwl_mvm_sta_state_ops *callbacks) 3854 { 3855 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3856 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3857 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3858 struct ieee80211_link_sta *link_sta; 3859 unsigned int link_id; 3860 int ret; 3861 3862 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3863 sta->addr, old_state, new_state); 3864 3865 /* 3866 * If we are in a STA removal flow and in DQA mode: 3867 * 3868 * This is after the sync_rcu part, so the queues have already been 3869 * flushed. No more TXs on their way in mac80211's path, and no more in 3870 * the queues. 3871 * Also, we won't be getting any new TX frames for this station. 3872 * What we might have are deferred TX frames that need to be taken care 3873 * of. 3874 * 3875 * Drop any still-queued deferred-frame before removing the STA, and 3876 * make sure the worker is no longer handling frames for this STA. 3877 */ 3878 if (old_state == IEEE80211_STA_NONE && 3879 new_state == IEEE80211_STA_NOTEXIST) { 3880 flush_work(&mvm->add_stream_wk); 3881 3882 /* 3883 * No need to make sure deferred TX indication is off since the 3884 * worker will already remove it if it was on 3885 */ 3886 3887 /* 3888 * Additionally, reset the 40 MHz capability if we disconnected 3889 * from the AP now. 3890 */ 3891 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3892 3893 /* Also free dup data just in case any assertions below fail */ 3894 kfree(mvm_sta->dup_data); 3895 } 3896 3897 mutex_lock(&mvm->mutex); 3898 3899 /* this would be a mac80211 bug ... but don't crash, unless we had a 3900 * firmware crash while we were activating a link, in which case it is 3901 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3902 * recovery flow since we spit tons of error messages anyway. 3903 */ 3904 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3905 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 3906 !mvmvif->link[link_id]->phy_ctxt)) { 3907 mutex_unlock(&mvm->mutex); 3908 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3909 &mvm->status) ? 0 : -EINVAL; 3910 } 3911 } 3912 3913 /* track whether or not the station is associated */ 3914 mvm_sta->sta_state = new_state; 3915 3916 if (old_state == IEEE80211_STA_NOTEXIST && 3917 new_state == IEEE80211_STA_NONE) { 3918 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3919 callbacks); 3920 if (ret < 0) 3921 goto out_unlock; 3922 } else if (old_state == IEEE80211_STA_NONE && 3923 new_state == IEEE80211_STA_AUTH) { 3924 /* 3925 * EBS may be disabled due to previous failures reported by FW. 3926 * Reset EBS status here assuming environment has been changed. 3927 */ 3928 mvm->last_ebs_successful = true; 3929 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3930 ret = 0; 3931 } else if (old_state == IEEE80211_STA_AUTH && 3932 new_state == IEEE80211_STA_ASSOC) { 3933 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3934 callbacks); 3935 } else if (old_state == IEEE80211_STA_ASSOC && 3936 new_state == IEEE80211_STA_AUTHORIZED) { 3937 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3938 callbacks); 3939 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3940 new_state == IEEE80211_STA_ASSOC) { 3941 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3942 callbacks); 3943 } else if (old_state == IEEE80211_STA_ASSOC && 3944 new_state == IEEE80211_STA_AUTH) { 3945 if (vif->type == NL80211_IFTYPE_AP) { 3946 mvmvif->ap_assoc_sta_count--; 3947 callbacks->mac_ctxt_changed(mvm, vif, false); 3948 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3949 iwl_mvm_stop_session_protection(mvm, vif); 3950 ret = 0; 3951 } else if (old_state == IEEE80211_STA_AUTH && 3952 new_state == IEEE80211_STA_NONE) { 3953 ret = 0; 3954 } else if (old_state == IEEE80211_STA_NONE && 3955 new_state == IEEE80211_STA_NOTEXIST) { 3956 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3957 iwl_mvm_stop_session_protection(mvm, vif); 3958 mvmvif->ap_sta = NULL; 3959 } 3960 ret = callbacks->rm_sta(mvm, vif, sta); 3961 if (sta->tdls) { 3962 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3963 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3964 NL80211_TDLS_DISABLE_LINK); 3965 } 3966 3967 if (unlikely(ret && 3968 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3969 &mvm->status))) 3970 ret = 0; 3971 } else { 3972 ret = -EIO; 3973 } 3974 out_unlock: 3975 mutex_unlock(&mvm->mutex); 3976 3977 if (sta->tdls && ret == 0) { 3978 if (old_state == IEEE80211_STA_NOTEXIST && 3979 new_state == IEEE80211_STA_NONE) 3980 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3981 else if (old_state == IEEE80211_STA_NONE && 3982 new_state == IEEE80211_STA_NOTEXIST) 3983 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3984 } 3985 3986 return ret; 3987 } 3988 3989 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3990 { 3991 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3992 3993 mvm->rts_threshold = value; 3994 3995 return 0; 3996 } 3997 3998 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3999 struct ieee80211_sta *sta, u32 changed) 4000 { 4001 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4002 4003 if (changed & (IEEE80211_RC_BW_CHANGED | 4004 IEEE80211_RC_SUPP_RATES_CHANGED | 4005 IEEE80211_RC_NSS_CHANGED)) 4006 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4007 4008 if (vif->type == NL80211_IFTYPE_STATION && 4009 changed & IEEE80211_RC_NSS_CHANGED) 4010 iwl_mvm_sf_update(mvm, vif, false); 4011 } 4012 4013 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4014 struct ieee80211_vif *vif, 4015 unsigned int link_id, u16 ac, 4016 const struct ieee80211_tx_queue_params *params) 4017 { 4018 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4019 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4020 4021 mvmvif->deflink.queue_params[ac] = *params; 4022 4023 /* 4024 * No need to update right away, we'll get BSS_CHANGED_QOS 4025 * The exception is P2P_DEVICE interface which needs immediate update. 4026 */ 4027 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4028 int ret; 4029 4030 mutex_lock(&mvm->mutex); 4031 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4032 mutex_unlock(&mvm->mutex); 4033 return ret; 4034 } 4035 return 0; 4036 } 4037 4038 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4039 struct ieee80211_vif *vif, 4040 struct ieee80211_prep_tx_info *info) 4041 { 4042 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4043 4044 mutex_lock(&mvm->mutex); 4045 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4046 mutex_unlock(&mvm->mutex); 4047 } 4048 4049 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4050 struct ieee80211_vif *vif, 4051 struct ieee80211_prep_tx_info *info) 4052 { 4053 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4054 4055 /* for successful cases (auth/assoc), don't cancel session protection */ 4056 if (info->success) 4057 return; 4058 4059 mutex_lock(&mvm->mutex); 4060 iwl_mvm_stop_session_protection(mvm, vif); 4061 mutex_unlock(&mvm->mutex); 4062 } 4063 4064 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4065 struct ieee80211_vif *vif, 4066 struct cfg80211_sched_scan_request *req, 4067 struct ieee80211_scan_ies *ies) 4068 { 4069 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4070 4071 int ret; 4072 4073 mutex_lock(&mvm->mutex); 4074 4075 if (!vif->cfg.idle) { 4076 ret = -EBUSY; 4077 goto out; 4078 } 4079 4080 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4081 4082 out: 4083 mutex_unlock(&mvm->mutex); 4084 return ret; 4085 } 4086 4087 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4088 struct ieee80211_vif *vif) 4089 { 4090 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4091 int ret; 4092 4093 mutex_lock(&mvm->mutex); 4094 4095 /* Due to a race condition, it's possible that mac80211 asks 4096 * us to stop a sched_scan when it's already stopped. This 4097 * can happen, for instance, if we stopped the scan ourselves, 4098 * called ieee80211_sched_scan_stopped() and the userspace called 4099 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4100 * could run. To handle this, simply return if the scan is 4101 * not running. 4102 */ 4103 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4104 mutex_unlock(&mvm->mutex); 4105 return 0; 4106 } 4107 4108 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4109 mutex_unlock(&mvm->mutex); 4110 iwl_mvm_wait_for_async_handlers(mvm); 4111 4112 return ret; 4113 } 4114 4115 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4116 enum set_key_cmd cmd, 4117 struct ieee80211_vif *vif, 4118 struct ieee80211_sta *sta, 4119 struct ieee80211_key_conf *key) 4120 { 4121 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4122 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4123 struct iwl_mvm_sta *mvmsta = NULL; 4124 struct iwl_mvm_key_pn *ptk_pn = NULL; 4125 int keyidx = key->keyidx; 4126 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4127 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4128 int ret, i; 4129 u8 key_offset; 4130 4131 if (sta) 4132 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4133 4134 switch (key->cipher) { 4135 case WLAN_CIPHER_SUITE_TKIP: 4136 if (!mvm->trans->trans_cfg->gen2) { 4137 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4138 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4139 } else if (vif->type == NL80211_IFTYPE_STATION) { 4140 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4141 } else { 4142 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4143 return -EOPNOTSUPP; 4144 } 4145 break; 4146 case WLAN_CIPHER_SUITE_CCMP: 4147 case WLAN_CIPHER_SUITE_GCMP: 4148 case WLAN_CIPHER_SUITE_GCMP_256: 4149 if (!iwl_mvm_has_new_tx_api(mvm)) 4150 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4151 break; 4152 case WLAN_CIPHER_SUITE_AES_CMAC: 4153 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4154 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4155 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4156 break; 4157 case WLAN_CIPHER_SUITE_WEP40: 4158 case WLAN_CIPHER_SUITE_WEP104: 4159 if (vif->type == NL80211_IFTYPE_STATION) 4160 break; 4161 if (iwl_mvm_has_new_tx_api(mvm)) 4162 return -EOPNOTSUPP; 4163 /* support HW crypto on TX */ 4164 return 0; 4165 default: 4166 return -EOPNOTSUPP; 4167 } 4168 4169 switch (cmd) { 4170 case SET_KEY: 4171 if (vif->type == NL80211_IFTYPE_STATION && 4172 (keyidx == 6 || keyidx == 7)) 4173 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4174 key); 4175 4176 if ((vif->type == NL80211_IFTYPE_ADHOC || 4177 vif->type == NL80211_IFTYPE_AP) && !sta) { 4178 /* 4179 * GTK on AP interface is a TX-only key, return 0; 4180 * on IBSS they're per-station and because we're lazy 4181 * we don't support them for RX, so do the same. 4182 * CMAC/GMAC in AP/IBSS modes must be done in software. 4183 * 4184 * Except, of course, beacon protection - it must be 4185 * offloaded since we just set a beacon template. 4186 */ 4187 if (keyidx < 6 && 4188 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4189 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4190 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4191 ret = -EOPNOTSUPP; 4192 break; 4193 } 4194 4195 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4196 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4197 !iwl_mvm_has_new_tx_api(mvm)) { 4198 key->hw_key_idx = STA_KEY_IDX_INVALID; 4199 ret = 0; 4200 break; 4201 } 4202 4203 if (!mvmvif->ap_ibss_active) { 4204 for (i = 0; 4205 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4206 i++) { 4207 if (!mvmvif->ap_early_keys[i]) { 4208 mvmvif->ap_early_keys[i] = key; 4209 break; 4210 } 4211 } 4212 4213 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4214 ret = -ENOSPC; 4215 else 4216 ret = 0; 4217 4218 break; 4219 } 4220 } 4221 4222 /* During FW restart, in order to restore the state as it was, 4223 * don't try to reprogram keys we previously failed for. 4224 */ 4225 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4226 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4227 IWL_DEBUG_MAC80211(mvm, 4228 "skip invalid idx key programming during restart\n"); 4229 ret = 0; 4230 break; 4231 } 4232 4233 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4234 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4235 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4236 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4237 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4238 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4239 struct ieee80211_key_seq seq; 4240 int tid, q; 4241 4242 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4243 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4244 mvm->trans->num_rx_queues), 4245 GFP_KERNEL); 4246 if (!ptk_pn) { 4247 ret = -ENOMEM; 4248 break; 4249 } 4250 4251 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4252 ieee80211_get_key_rx_seq(key, tid, &seq); 4253 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4254 memcpy(ptk_pn->q[q].pn[tid], 4255 seq.ccmp.pn, 4256 IEEE80211_CCMP_PN_LEN); 4257 } 4258 4259 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4260 } 4261 4262 /* in HW restart reuse the index, otherwise request a new one */ 4263 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4264 key_offset = key->hw_key_idx; 4265 else 4266 key_offset = STA_KEY_IDX_INVALID; 4267 4268 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4269 mvmsta->pairwise_cipher = key->cipher; 4270 4271 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4272 sta ? sta->addr : NULL, key->keyidx); 4273 4274 if (sec_key_ver) 4275 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4276 else 4277 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4278 4279 if (ret) { 4280 IWL_WARN(mvm, "set key failed\n"); 4281 key->hw_key_idx = STA_KEY_IDX_INVALID; 4282 if (ptk_pn) { 4283 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4284 kfree(ptk_pn); 4285 } 4286 /* 4287 * can't add key for RX, but we don't need it 4288 * in the device for TX so still return 0, 4289 * unless we have new TX API where we cannot 4290 * put key material into the TX_CMD 4291 */ 4292 if (iwl_mvm_has_new_tx_api(mvm)) 4293 ret = -EOPNOTSUPP; 4294 else 4295 ret = 0; 4296 } 4297 4298 break; 4299 case DISABLE_KEY: 4300 if (vif->type == NL80211_IFTYPE_STATION && 4301 (keyidx == 6 || keyidx == 7)) 4302 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4303 NULL); 4304 4305 ret = -ENOENT; 4306 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4307 if (mvmvif->ap_early_keys[i] == key) { 4308 mvmvif->ap_early_keys[i] = NULL; 4309 ret = 0; 4310 } 4311 } 4312 4313 /* found in pending list - don't do anything else */ 4314 if (ret == 0) 4315 break; 4316 4317 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4318 ret = 0; 4319 break; 4320 } 4321 4322 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4323 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4324 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4325 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4326 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4327 ptk_pn = rcu_dereference_protected( 4328 mvmsta->ptk_pn[keyidx], 4329 lockdep_is_held(&mvm->mutex)); 4330 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4331 if (ptk_pn) 4332 kfree_rcu(ptk_pn, rcu_head); 4333 } 4334 4335 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4336 if (sec_key_ver) 4337 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4338 else 4339 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4340 break; 4341 default: 4342 ret = -EINVAL; 4343 } 4344 4345 return ret; 4346 } 4347 4348 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4349 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4350 struct ieee80211_key_conf *key) 4351 { 4352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4353 int ret; 4354 4355 mutex_lock(&mvm->mutex); 4356 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4357 mutex_unlock(&mvm->mutex); 4358 4359 return ret; 4360 } 4361 4362 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4363 struct ieee80211_vif *vif, 4364 struct ieee80211_key_conf *keyconf, 4365 struct ieee80211_sta *sta, 4366 u32 iv32, u16 *phase1key) 4367 { 4368 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4369 4370 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4371 return; 4372 4373 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4374 } 4375 4376 4377 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4378 struct iwl_rx_packet *pkt, void *data) 4379 { 4380 struct iwl_mvm *mvm = 4381 container_of(notif_wait, struct iwl_mvm, notif_wait); 4382 struct iwl_hs20_roc_res *resp; 4383 int resp_len = iwl_rx_packet_payload_len(pkt); 4384 struct iwl_mvm_time_event_data *te_data = data; 4385 4386 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4387 return true; 4388 4389 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4390 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4391 return true; 4392 } 4393 4394 resp = (void *)pkt->data; 4395 4396 IWL_DEBUG_TE(mvm, 4397 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4398 resp->status, resp->event_unique_id); 4399 4400 te_data->uid = le32_to_cpu(resp->event_unique_id); 4401 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4402 te_data->uid); 4403 4404 spin_lock_bh(&mvm->time_event_lock); 4405 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4406 spin_unlock_bh(&mvm->time_event_lock); 4407 4408 return true; 4409 } 4410 4411 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4412 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4413 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4414 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4415 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4416 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4417 struct ieee80211_channel *channel, 4418 struct ieee80211_vif *vif, 4419 int duration) 4420 { 4421 int res; 4422 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4423 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4424 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4425 struct iwl_notification_wait wait_time_event; 4426 u32 dtim_interval = vif->bss_conf.dtim_period * 4427 vif->bss_conf.beacon_int; 4428 u32 req_dur, delay; 4429 struct iwl_hs20_roc_req aux_roc_req = { 4430 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4431 .id_and_color = 4432 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4433 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4434 }; 4435 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4436 &aux_roc_req.channel_info); 4437 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4438 4439 /* Set the channel info data */ 4440 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4441 iwl_mvm_phy_band_from_nl80211(channel->band), 4442 IWL_PHY_CHANNEL_MODE20, 4443 0); 4444 4445 /* Set the time and duration */ 4446 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4447 4448 delay = AUX_ROC_MIN_DELAY; 4449 req_dur = MSEC_TO_TU(duration); 4450 4451 /* 4452 * If we are associated we want the delay time to be at least one 4453 * dtim interval so that the FW can wait until after the DTIM and 4454 * then start the time event, this will potentially allow us to 4455 * remain off-channel for the max duration. 4456 * Since we want to use almost a whole dtim interval we would also 4457 * like the delay to be for 2-3 dtim intervals, in case there are 4458 * other time events with higher priority. 4459 */ 4460 if (vif->cfg.assoc) { 4461 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4462 /* We cannot remain off-channel longer than the DTIM interval */ 4463 if (dtim_interval <= req_dur) { 4464 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4465 if (req_dur <= AUX_ROC_MIN_DURATION) 4466 req_dur = dtim_interval - 4467 AUX_ROC_MIN_SAFETY_BUFFER; 4468 } 4469 } 4470 4471 tail->duration = cpu_to_le32(req_dur); 4472 tail->apply_time_max_delay = cpu_to_le32(delay); 4473 4474 IWL_DEBUG_TE(mvm, 4475 "ROC: Requesting to remain on channel %u for %ums\n", 4476 channel->hw_value, req_dur); 4477 IWL_DEBUG_TE(mvm, 4478 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4479 duration, delay, dtim_interval); 4480 4481 /* Set the node address */ 4482 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4483 4484 lockdep_assert_held(&mvm->mutex); 4485 4486 spin_lock_bh(&mvm->time_event_lock); 4487 4488 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4489 spin_unlock_bh(&mvm->time_event_lock); 4490 return -EIO; 4491 } 4492 4493 te_data->vif = vif; 4494 te_data->duration = duration; 4495 te_data->id = HOT_SPOT_CMD; 4496 4497 spin_unlock_bh(&mvm->time_event_lock); 4498 4499 /* 4500 * Use a notification wait, which really just processes the 4501 * command response and doesn't wait for anything, in order 4502 * to be able to process the response and get the UID inside 4503 * the RX path. Using CMD_WANT_SKB doesn't work because it 4504 * stores the buffer and then wakes up this thread, by which 4505 * time another notification (that the time event started) 4506 * might already be processed unsuccessfully. 4507 */ 4508 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4509 time_event_response, 4510 ARRAY_SIZE(time_event_response), 4511 iwl_mvm_rx_aux_roc, te_data); 4512 4513 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4514 &aux_roc_req); 4515 4516 if (res) { 4517 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4518 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4519 goto out_clear_te; 4520 } 4521 4522 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4523 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4524 /* should never fail */ 4525 WARN_ON_ONCE(res); 4526 4527 if (res) { 4528 out_clear_te: 4529 spin_lock_bh(&mvm->time_event_lock); 4530 iwl_mvm_te_clear_data(mvm, te_data); 4531 spin_unlock_bh(&mvm->time_event_lock); 4532 } 4533 4534 return res; 4535 } 4536 4537 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4538 { 4539 int ret = 0; 4540 4541 lockdep_assert_held(&mvm->mutex); 4542 4543 if (!fw_has_capa(&mvm->fw->ucode_capa, 4544 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4545 IWL_ERR(mvm, "hotspot not supported\n"); 4546 return -EINVAL; 4547 } 4548 4549 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4550 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4551 WARN(ret, "Failed to allocate aux station"); 4552 } 4553 4554 return ret; 4555 } 4556 4557 static int iwl_mvm_roc_switch_binding(struct iwl_mvm *mvm, 4558 struct ieee80211_vif *vif, 4559 struct iwl_mvm_phy_ctxt *new_phy_ctxt) 4560 { 4561 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4562 int ret = 0; 4563 4564 lockdep_assert_held(&mvm->mutex); 4565 4566 /* Unbind the P2P_DEVICE from the current PHY context, 4567 * and if the PHY context is not used remove it. 4568 */ 4569 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4570 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4571 return ret; 4572 4573 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4574 4575 /* Bind the P2P_DEVICE to the current PHY Context */ 4576 mvmvif->deflink.phy_ctxt = new_phy_ctxt; 4577 4578 ret = iwl_mvm_binding_add_vif(mvm, vif); 4579 WARN(ret, "Failed binding P2P_DEVICE\n"); 4580 return ret; 4581 } 4582 4583 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4584 struct ieee80211_vif *vif, 4585 struct ieee80211_channel *channel, 4586 int duration, 4587 enum ieee80211_roc_type type) 4588 { 4589 static const struct iwl_mvm_roc_ops ops = { 4590 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4591 .switch_phy_ctxt = iwl_mvm_roc_switch_binding, 4592 }; 4593 4594 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4595 } 4596 4597 /* Execute the common part for MLD and non-MLD modes */ 4598 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4599 struct ieee80211_channel *channel, int duration, 4600 enum ieee80211_roc_type type, 4601 const struct iwl_mvm_roc_ops *ops) 4602 { 4603 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4604 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4605 struct cfg80211_chan_def chandef; 4606 struct iwl_mvm_phy_ctxt *phy_ctxt; 4607 bool band_change_removal; 4608 int ret, i; 4609 u32 lmac_id; 4610 4611 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4612 duration, type); 4613 4614 /* 4615 * Flush the done work, just in case it's still pending, so that 4616 * the work it does can complete and we can accept new frames. 4617 */ 4618 flush_work(&mvm->roc_done_wk); 4619 4620 mutex_lock(&mvm->mutex); 4621 4622 switch (vif->type) { 4623 case NL80211_IFTYPE_STATION: 4624 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4625 4626 /* Use aux roc framework (HS20) */ 4627 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4628 if (!ret) 4629 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4630 vif, duration); 4631 goto out_unlock; 4632 case NL80211_IFTYPE_P2P_DEVICE: 4633 /* handle below */ 4634 break; 4635 default: 4636 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4637 ret = -EINVAL; 4638 goto out_unlock; 4639 } 4640 4641 for (i = 0; i < NUM_PHY_CTX; i++) { 4642 phy_ctxt = &mvm->phy_ctxts[i]; 4643 if (phy_ctxt->ref == 0 || mvmvif->deflink.phy_ctxt == phy_ctxt) 4644 continue; 4645 4646 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4647 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4648 if (ret) 4649 goto out_unlock; 4650 4651 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4652 goto schedule_time_event; 4653 } 4654 } 4655 4656 /* Need to update the PHY context only if the ROC channel changed */ 4657 if (channel == mvmvif->deflink.phy_ctxt->channel) 4658 goto schedule_time_event; 4659 4660 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4661 4662 /* 4663 * Check if the remain-on-channel is on a different band and that 4664 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4665 * so, we'll need to release and then re-configure here, since we 4666 * must not remove a PHY context that's part of a binding. 4667 */ 4668 band_change_removal = 4669 fw_has_capa(&mvm->fw->ucode_capa, 4670 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4671 mvmvif->deflink.phy_ctxt->channel->band != chandef.chan->band; 4672 4673 if (mvmvif->deflink.phy_ctxt->ref == 1 && !band_change_removal) { 4674 /* 4675 * Change the PHY context configuration as it is currently 4676 * referenced only by the P2P Device MAC (and we can modify it) 4677 */ 4678 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->deflink.phy_ctxt, 4679 &chandef, 1, 1); 4680 if (ret) 4681 goto out_unlock; 4682 } else { 4683 /* 4684 * The PHY context is shared with other MACs (or we're trying to 4685 * switch bands), so remove the P2P Device from the binding, 4686 * allocate an new PHY context and create a new binding. 4687 */ 4688 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4689 if (!phy_ctxt) { 4690 ret = -ENOSPC; 4691 goto out_unlock; 4692 } 4693 4694 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4695 1, 1); 4696 if (ret) { 4697 IWL_ERR(mvm, "Failed to change PHY context\n"); 4698 goto out_unlock; 4699 } 4700 4701 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4702 if (ret) 4703 goto out_unlock; 4704 4705 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4706 } 4707 4708 schedule_time_event: 4709 /* Schedule the time events */ 4710 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4711 4712 out_unlock: 4713 mutex_unlock(&mvm->mutex); 4714 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4715 return ret; 4716 } 4717 4718 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4719 struct ieee80211_vif *vif) 4720 { 4721 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4722 4723 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4724 4725 mutex_lock(&mvm->mutex); 4726 iwl_mvm_stop_roc(mvm, vif); 4727 mutex_unlock(&mvm->mutex); 4728 4729 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4730 return 0; 4731 } 4732 4733 struct iwl_mvm_ftm_responder_iter_data { 4734 bool responder; 4735 struct ieee80211_chanctx_conf *ctx; 4736 }; 4737 4738 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4739 struct ieee80211_vif *vif) 4740 { 4741 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4742 4743 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4744 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4745 data->responder = true; 4746 } 4747 4748 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4749 struct ieee80211_chanctx_conf *ctx) 4750 { 4751 struct iwl_mvm_ftm_responder_iter_data data = { 4752 .responder = false, 4753 .ctx = ctx, 4754 }; 4755 4756 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4757 IEEE80211_IFACE_ITER_NORMAL, 4758 iwl_mvm_ftm_responder_chanctx_iter, 4759 &data); 4760 return data.responder; 4761 } 4762 4763 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4764 struct ieee80211_chanctx_conf *ctx) 4765 { 4766 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4767 struct iwl_mvm_phy_ctxt *phy_ctxt; 4768 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4769 iwl_mvm_enable_fils(mvm, ctx); 4770 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4771 int ret; 4772 4773 lockdep_assert_held(&mvm->mutex); 4774 4775 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4776 4777 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4778 if (!phy_ctxt) { 4779 ret = -ENOSPC; 4780 goto out; 4781 } 4782 4783 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4784 ctx->rx_chains_static, 4785 ctx->rx_chains_dynamic); 4786 if (ret) { 4787 IWL_ERR(mvm, "Failed to add PHY context\n"); 4788 goto out; 4789 } 4790 4791 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4792 *phy_ctxt_id = phy_ctxt->id; 4793 out: 4794 return ret; 4795 } 4796 4797 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4798 struct ieee80211_chanctx_conf *ctx) 4799 { 4800 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4801 int ret; 4802 4803 mutex_lock(&mvm->mutex); 4804 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4805 mutex_unlock(&mvm->mutex); 4806 4807 return ret; 4808 } 4809 4810 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4811 struct ieee80211_chanctx_conf *ctx) 4812 { 4813 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4814 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4815 4816 lockdep_assert_held(&mvm->mutex); 4817 4818 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4819 } 4820 4821 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4822 struct ieee80211_chanctx_conf *ctx) 4823 { 4824 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4825 4826 mutex_lock(&mvm->mutex); 4827 __iwl_mvm_remove_chanctx(mvm, ctx); 4828 mutex_unlock(&mvm->mutex); 4829 } 4830 4831 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4832 struct ieee80211_chanctx_conf *ctx, u32 changed) 4833 { 4834 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4835 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4836 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4837 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) || 4838 iwl_mvm_enable_fils(mvm, ctx); 4839 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def; 4840 4841 if (WARN_ONCE((phy_ctxt->ref > 1) && 4842 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4843 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4844 IEEE80211_CHANCTX_CHANGE_RADAR | 4845 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4846 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4847 phy_ctxt->ref, changed)) 4848 return; 4849 4850 mutex_lock(&mvm->mutex); 4851 4852 /* we are only changing the min_width, may be a noop */ 4853 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4854 if (phy_ctxt->width == def->width) 4855 goto out_unlock; 4856 4857 /* we are just toggling between 20_NOHT and 20 */ 4858 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4859 def->width <= NL80211_CHAN_WIDTH_20) 4860 goto out_unlock; 4861 } 4862 4863 iwl_mvm_bt_coex_vif_change(mvm); 4864 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4865 ctx->rx_chains_static, 4866 ctx->rx_chains_dynamic); 4867 4868 out_unlock: 4869 mutex_unlock(&mvm->mutex); 4870 } 4871 4872 /* 4873 * This function executes the common part for MLD and non-MLD modes. 4874 * 4875 * Returns true if we're done assigning the chanctx 4876 * (either on failure or success) 4877 */ 4878 static bool 4879 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4880 struct ieee80211_vif *vif, 4881 struct ieee80211_chanctx_conf *ctx, 4882 bool switching_chanctx, int *ret) 4883 { 4884 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4885 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4886 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4887 4888 lockdep_assert_held(&mvm->mutex); 4889 4890 mvmvif->deflink.phy_ctxt = phy_ctxt; 4891 4892 switch (vif->type) { 4893 case NL80211_IFTYPE_AP: 4894 /* only needed if we're switching chanctx (i.e. during CSA) */ 4895 if (switching_chanctx) { 4896 mvmvif->ap_ibss_active = true; 4897 break; 4898 } 4899 fallthrough; 4900 case NL80211_IFTYPE_ADHOC: 4901 /* 4902 * The AP binding flow is handled as part of the start_ap flow 4903 * (in bss_info_changed), similarly for IBSS. 4904 */ 4905 *ret = 0; 4906 return true; 4907 case NL80211_IFTYPE_STATION: 4908 break; 4909 case NL80211_IFTYPE_MONITOR: 4910 /* always disable PS when a monitor interface is active */ 4911 mvmvif->ps_disabled = true; 4912 break; 4913 default: 4914 *ret = -EINVAL; 4915 return true; 4916 } 4917 return false; 4918 } 4919 4920 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4921 struct ieee80211_vif *vif, 4922 struct ieee80211_bss_conf *link_conf, 4923 struct ieee80211_chanctx_conf *ctx, 4924 bool switching_chanctx) 4925 { 4926 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4927 int ret; 4928 4929 if (WARN_ON(!link_conf)) 4930 return -EINVAL; 4931 4932 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4933 switching_chanctx, &ret)) 4934 goto out; 4935 4936 ret = iwl_mvm_binding_add_vif(mvm, vif); 4937 if (ret) 4938 goto out; 4939 4940 /* 4941 * Power state must be updated before quotas, 4942 * otherwise fw will complain. 4943 */ 4944 iwl_mvm_power_update_mac(mvm); 4945 4946 /* Setting the quota at this stage is only required for monitor 4947 * interfaces. For the other types, the bss_info changed flow 4948 * will handle quota settings. 4949 */ 4950 if (vif->type == NL80211_IFTYPE_MONITOR) { 4951 mvmvif->monitor_active = true; 4952 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4953 if (ret) 4954 goto out_remove_binding; 4955 4956 ret = iwl_mvm_add_snif_sta(mvm, vif); 4957 if (ret) 4958 goto out_remove_binding; 4959 4960 } 4961 4962 /* Handle binding during CSA */ 4963 if (vif->type == NL80211_IFTYPE_AP) { 4964 iwl_mvm_update_quotas(mvm, false, NULL); 4965 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4966 } 4967 4968 if (vif->type == NL80211_IFTYPE_STATION) { 4969 if (!switching_chanctx) { 4970 mvmvif->csa_bcn_pending = false; 4971 goto out; 4972 } 4973 4974 mvmvif->csa_bcn_pending = true; 4975 4976 if (!fw_has_capa(&mvm->fw->ucode_capa, 4977 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4978 u32 duration = 5 * vif->bss_conf.beacon_int; 4979 4980 /* Protect the session to make sure we hear the first 4981 * beacon on the new channel. 4982 */ 4983 iwl_mvm_protect_session(mvm, vif, duration, duration, 4984 vif->bss_conf.beacon_int / 2, 4985 true); 4986 } 4987 4988 iwl_mvm_update_quotas(mvm, false, NULL); 4989 } 4990 4991 goto out; 4992 4993 out_remove_binding: 4994 iwl_mvm_binding_remove_vif(mvm, vif); 4995 iwl_mvm_power_update_mac(mvm); 4996 out: 4997 if (ret) 4998 mvmvif->deflink.phy_ctxt = NULL; 4999 return ret; 5000 } 5001 5002 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5003 struct ieee80211_vif *vif, 5004 struct ieee80211_bss_conf *link_conf, 5005 struct ieee80211_chanctx_conf *ctx) 5006 { 5007 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5008 int ret; 5009 5010 mutex_lock(&mvm->mutex); 5011 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5012 mutex_unlock(&mvm->mutex); 5013 5014 return ret; 5015 } 5016 5017 /* 5018 * This function executes the common part for MLD and non-MLD modes. 5019 * 5020 * Returns if chanctx unassign chanctx is done 5021 * (either on failure or success) 5022 */ 5023 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5024 struct ieee80211_vif *vif, 5025 bool switching_chanctx) 5026 { 5027 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5028 5029 lockdep_assert_held(&mvm->mutex); 5030 iwl_mvm_remove_time_event(mvm, mvmvif, 5031 &mvmvif->time_event_data); 5032 5033 switch (vif->type) { 5034 case NL80211_IFTYPE_ADHOC: 5035 return true; 5036 case NL80211_IFTYPE_MONITOR: 5037 mvmvif->monitor_active = false; 5038 mvmvif->ps_disabled = false; 5039 break; 5040 case NL80211_IFTYPE_AP: 5041 /* This part is triggered only during CSA */ 5042 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5043 return true; 5044 5045 mvmvif->csa_countdown = false; 5046 5047 /* Set CS bit on all the stations */ 5048 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5049 5050 /* Save blocked iface, the timeout is set on the next beacon */ 5051 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5052 5053 mvmvif->ap_ibss_active = false; 5054 break; 5055 default: 5056 break; 5057 } 5058 return false; 5059 } 5060 5061 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5062 struct ieee80211_vif *vif, 5063 struct ieee80211_bss_conf *link_conf, 5064 struct ieee80211_chanctx_conf *ctx, 5065 bool switching_chanctx) 5066 { 5067 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5068 struct ieee80211_vif *disabled_vif = NULL; 5069 5070 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5071 goto out; 5072 5073 if (vif->type == NL80211_IFTYPE_MONITOR) 5074 iwl_mvm_rm_snif_sta(mvm, vif); 5075 5076 5077 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5078 disabled_vif = vif; 5079 if (!fw_has_capa(&mvm->fw->ucode_capa, 5080 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5081 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5082 } 5083 5084 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5085 iwl_mvm_binding_remove_vif(mvm, vif); 5086 5087 out: 5088 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5089 switching_chanctx) 5090 return; 5091 mvmvif->deflink.phy_ctxt = NULL; 5092 iwl_mvm_power_update_mac(mvm); 5093 } 5094 5095 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5096 struct ieee80211_vif *vif, 5097 struct ieee80211_bss_conf *link_conf, 5098 struct ieee80211_chanctx_conf *ctx) 5099 { 5100 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5101 5102 mutex_lock(&mvm->mutex); 5103 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5104 mutex_unlock(&mvm->mutex); 5105 } 5106 5107 static int 5108 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5109 struct ieee80211_vif_chanctx_switch *vifs, 5110 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5111 { 5112 int ret; 5113 5114 mutex_lock(&mvm->mutex); 5115 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5116 vifs[0].old_ctx, true); 5117 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5118 5119 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5120 if (ret) { 5121 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5122 goto out_reassign; 5123 } 5124 5125 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5126 vifs[0].new_ctx, true); 5127 if (ret) { 5128 IWL_ERR(mvm, 5129 "failed to assign new_ctx during channel switch\n"); 5130 goto out_remove; 5131 } 5132 5133 /* we don't support TDLS during DCM - can be caused by channel switch */ 5134 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5135 iwl_mvm_teardown_tdls_peers(mvm); 5136 5137 goto out; 5138 5139 out_remove: 5140 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5141 5142 out_reassign: 5143 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5144 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5145 goto out_restart; 5146 } 5147 5148 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5149 vifs[0].old_ctx, true)) { 5150 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5151 goto out_restart; 5152 } 5153 5154 goto out; 5155 5156 out_restart: 5157 /* things keep failing, better restart the hw */ 5158 iwl_mvm_nic_restart(mvm, false); 5159 5160 out: 5161 mutex_unlock(&mvm->mutex); 5162 5163 return ret; 5164 } 5165 5166 static int 5167 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5168 struct ieee80211_vif_chanctx_switch *vifs, 5169 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5170 { 5171 int ret; 5172 5173 mutex_lock(&mvm->mutex); 5174 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5175 vifs[0].old_ctx, true); 5176 5177 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5178 vifs[0].new_ctx, true); 5179 if (ret) { 5180 IWL_ERR(mvm, 5181 "failed to assign new_ctx during channel switch\n"); 5182 goto out_reassign; 5183 } 5184 5185 goto out; 5186 5187 out_reassign: 5188 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5189 vifs[0].old_ctx, true)) { 5190 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5191 goto out_restart; 5192 } 5193 5194 goto out; 5195 5196 out_restart: 5197 /* things keep failing, better restart the hw */ 5198 iwl_mvm_nic_restart(mvm, false); 5199 5200 out: 5201 mutex_unlock(&mvm->mutex); 5202 5203 return ret; 5204 } 5205 5206 /* Execute the common part for both MLD and non-MLD modes */ 5207 int 5208 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5209 struct ieee80211_vif_chanctx_switch *vifs, 5210 int n_vifs, 5211 enum ieee80211_chanctx_switch_mode mode, 5212 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5213 { 5214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5215 int ret; 5216 5217 /* we only support a single-vif right now */ 5218 if (n_vifs > 1) 5219 return -EOPNOTSUPP; 5220 5221 switch (mode) { 5222 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5223 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5224 break; 5225 case CHANCTX_SWMODE_REASSIGN_VIF: 5226 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5227 break; 5228 default: 5229 ret = -EOPNOTSUPP; 5230 break; 5231 } 5232 5233 return ret; 5234 } 5235 5236 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5237 struct ieee80211_vif_chanctx_switch *vifs, 5238 int n_vifs, 5239 enum ieee80211_chanctx_switch_mode mode) 5240 { 5241 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5242 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5243 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5244 }; 5245 5246 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5247 } 5248 5249 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5250 { 5251 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5252 5253 return mvm->ibss_manager; 5254 } 5255 5256 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5257 bool set) 5258 { 5259 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5260 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5261 5262 if (!mvm_sta || !mvm_sta->vif) { 5263 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5264 return -EINVAL; 5265 } 5266 5267 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5268 &mvm_sta->vif->bss_conf); 5269 } 5270 5271 #ifdef CONFIG_NL80211_TESTMODE 5272 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5273 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5274 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5275 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5276 }; 5277 5278 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5279 struct ieee80211_vif *vif, 5280 void *data, int len) 5281 { 5282 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5283 int err; 5284 u32 noa_duration; 5285 5286 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5287 iwl_mvm_tm_policy, NULL); 5288 if (err) 5289 return err; 5290 5291 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5292 return -EINVAL; 5293 5294 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5295 case IWL_MVM_TM_CMD_SET_NOA: 5296 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5297 !vif->bss_conf.enable_beacon || 5298 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5299 return -EINVAL; 5300 5301 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5302 if (noa_duration >= vif->bss_conf.beacon_int) 5303 return -EINVAL; 5304 5305 mvm->noa_duration = noa_duration; 5306 mvm->noa_vif = vif; 5307 5308 return iwl_mvm_update_quotas(mvm, true, NULL); 5309 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5310 /* must be associated client vif - ignore authorized */ 5311 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5312 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5313 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5314 return -EINVAL; 5315 5316 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5317 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5318 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5319 } 5320 5321 return -EOPNOTSUPP; 5322 } 5323 5324 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5325 struct ieee80211_vif *vif, 5326 void *data, int len) 5327 { 5328 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5329 int err; 5330 5331 mutex_lock(&mvm->mutex); 5332 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5333 mutex_unlock(&mvm->mutex); 5334 5335 return err; 5336 } 5337 #endif 5338 5339 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5340 struct ieee80211_channel_switch *chsw) 5341 { 5342 /* By implementing this operation, we prevent mac80211 from 5343 * starting its own channel switch timer, so that we can call 5344 * ieee80211_chswitch_done() ourselves at the right time 5345 * (which is when the absence time event starts). 5346 */ 5347 5348 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5349 "dummy channel switch op\n"); 5350 } 5351 5352 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5353 struct ieee80211_vif *vif, 5354 struct ieee80211_channel_switch *chsw) 5355 { 5356 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5357 struct iwl_chan_switch_te_cmd cmd = { 5358 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5359 mvmvif->color)), 5360 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5361 .tsf = cpu_to_le32(chsw->timestamp), 5362 .cs_count = chsw->count, 5363 .cs_mode = chsw->block_tx, 5364 }; 5365 5366 lockdep_assert_held(&mvm->mutex); 5367 5368 if (chsw->delay) 5369 cmd.cs_delayed_bcn_count = 5370 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5371 5372 return iwl_mvm_send_cmd_pdu(mvm, 5373 WIDE_ID(MAC_CONF_GROUP, 5374 CHANNEL_SWITCH_TIME_EVENT_CMD), 5375 0, sizeof(cmd), &cmd); 5376 } 5377 5378 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5379 struct ieee80211_vif *vif, 5380 struct ieee80211_channel_switch *chsw) 5381 { 5382 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5383 u32 apply_time; 5384 5385 /* Schedule the time event to a bit before beacon 1, 5386 * to make sure we're in the new channel when the 5387 * GO/AP arrives. In case count <= 1 immediately schedule the 5388 * TE (this might result with some packet loss or connection 5389 * loss). 5390 */ 5391 if (chsw->count <= 1) 5392 apply_time = 0; 5393 else 5394 apply_time = chsw->device_timestamp + 5395 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5396 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5397 5398 if (chsw->block_tx) 5399 iwl_mvm_csa_client_absent(mvm, vif); 5400 5401 if (mvmvif->bf_data.bf_enabled) { 5402 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5403 5404 if (ret) 5405 return ret; 5406 } 5407 5408 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5409 apply_time); 5410 5411 return 0; 5412 } 5413 5414 #define IWL_MAX_CSA_BLOCK_TX 1500 5415 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5416 struct ieee80211_vif *vif, 5417 struct ieee80211_channel_switch *chsw) 5418 { 5419 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5420 struct ieee80211_vif *csa_vif; 5421 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5422 int ret; 5423 5424 mutex_lock(&mvm->mutex); 5425 5426 mvmvif->csa_failed = false; 5427 5428 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5429 chsw->chandef.center_freq1); 5430 5431 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5432 ieee80211_vif_to_wdev(vif), 5433 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5434 5435 switch (vif->type) { 5436 case NL80211_IFTYPE_AP: 5437 csa_vif = 5438 rcu_dereference_protected(mvm->csa_vif, 5439 lockdep_is_held(&mvm->mutex)); 5440 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5441 "Another CSA is already in progress")) { 5442 ret = -EBUSY; 5443 goto out_unlock; 5444 } 5445 5446 /* we still didn't unblock tx. prevent new CS meanwhile */ 5447 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5448 lockdep_is_held(&mvm->mutex))) { 5449 ret = -EBUSY; 5450 goto out_unlock; 5451 } 5452 5453 rcu_assign_pointer(mvm->csa_vif, vif); 5454 5455 if (WARN_ONCE(mvmvif->csa_countdown, 5456 "Previous CSA countdown didn't complete")) { 5457 ret = -EBUSY; 5458 goto out_unlock; 5459 } 5460 5461 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5462 5463 break; 5464 case NL80211_IFTYPE_STATION: 5465 /* 5466 * In the new flow FW is in charge of timing the switch so there 5467 * is no need for all of this 5468 */ 5469 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5470 CHANNEL_SWITCH_ERROR_NOTIF, 5471 0)) 5472 break; 5473 5474 /* 5475 * We haven't configured the firmware to be associated yet since 5476 * we don't know the dtim period. In this case, the firmware can't 5477 * track the beacons. 5478 */ 5479 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5480 ret = -EBUSY; 5481 goto out_unlock; 5482 } 5483 5484 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5485 hweight16(vif->valid_links) <= 1) 5486 schedule_delayed_work(&mvmvif->csa_work, 0); 5487 5488 if (chsw->block_tx) { 5489 /* 5490 * In case of undetermined / long time with immediate 5491 * quiet monitor status to gracefully disconnect 5492 */ 5493 if (!chsw->count || 5494 chsw->count * vif->bss_conf.beacon_int > 5495 IWL_MAX_CSA_BLOCK_TX) 5496 schedule_delayed_work(&mvmvif->csa_work, 5497 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5498 } 5499 5500 if (!fw_has_capa(&mvm->fw->ucode_capa, 5501 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5502 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5503 if (ret) 5504 goto out_unlock; 5505 } else { 5506 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5507 } 5508 5509 mvmvif->csa_count = chsw->count; 5510 mvmvif->csa_misbehave = false; 5511 break; 5512 default: 5513 break; 5514 } 5515 5516 mvmvif->ps_disabled = true; 5517 5518 ret = iwl_mvm_power_update_ps(mvm); 5519 if (ret) 5520 goto out_unlock; 5521 5522 /* we won't be on this channel any longer */ 5523 iwl_mvm_teardown_tdls_peers(mvm); 5524 5525 out_unlock: 5526 mutex_unlock(&mvm->mutex); 5527 5528 return ret; 5529 } 5530 5531 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5532 struct ieee80211_vif *vif, 5533 struct ieee80211_channel_switch *chsw) 5534 { 5535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5536 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5537 struct iwl_chan_switch_te_cmd cmd = { 5538 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5539 mvmvif->color)), 5540 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5541 .tsf = cpu_to_le32(chsw->timestamp), 5542 .cs_count = chsw->count, 5543 .cs_mode = chsw->block_tx, 5544 }; 5545 5546 /* 5547 * In the new flow FW is in charge of timing the switch so there is no 5548 * need for all of this 5549 */ 5550 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5551 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5552 return; 5553 5554 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5555 return; 5556 5557 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5558 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5559 5560 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5561 if (mvmvif->csa_misbehave) { 5562 /* Second time, give up on this AP*/ 5563 iwl_mvm_abort_channel_switch(hw, vif); 5564 ieee80211_chswitch_done(vif, false, 0); 5565 mvmvif->csa_misbehave = false; 5566 return; 5567 } 5568 mvmvif->csa_misbehave = true; 5569 } 5570 mvmvif->csa_count = chsw->count; 5571 5572 mutex_lock(&mvm->mutex); 5573 if (mvmvif->csa_failed) 5574 goto out_unlock; 5575 5576 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5577 WIDE_ID(MAC_CONF_GROUP, 5578 CHANNEL_SWITCH_TIME_EVENT_CMD), 5579 0, sizeof(cmd), &cmd)); 5580 out_unlock: 5581 mutex_unlock(&mvm->mutex); 5582 } 5583 5584 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5585 { 5586 int i; 5587 5588 if (!iwl_mvm_has_new_tx_api(mvm)) { 5589 if (drop) { 5590 mutex_lock(&mvm->mutex); 5591 iwl_mvm_flush_tx_path(mvm, 5592 iwl_mvm_flushable_queues(mvm) & queues); 5593 mutex_unlock(&mvm->mutex); 5594 } else { 5595 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5596 } 5597 return; 5598 } 5599 5600 mutex_lock(&mvm->mutex); 5601 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5602 struct ieee80211_sta *sta; 5603 5604 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5605 lockdep_is_held(&mvm->mutex)); 5606 if (IS_ERR_OR_NULL(sta)) 5607 continue; 5608 5609 if (drop) 5610 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5611 else 5612 iwl_mvm_wait_sta_queues_empty(mvm, 5613 iwl_mvm_sta_from_mac80211(sta)); 5614 } 5615 mutex_unlock(&mvm->mutex); 5616 } 5617 5618 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5619 u32 queues, bool drop) 5620 { 5621 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5622 struct iwl_mvm_vif *mvmvif; 5623 struct iwl_mvm_sta *mvmsta; 5624 struct ieee80211_sta *sta; 5625 bool ap_sta_done = false; 5626 int i; 5627 u32 msk = 0; 5628 5629 if (!vif) { 5630 iwl_mvm_flush_no_vif(mvm, queues, drop); 5631 return; 5632 } 5633 5634 /* Make sure we're done with the deferred traffic before flushing */ 5635 flush_work(&mvm->add_stream_wk); 5636 5637 mutex_lock(&mvm->mutex); 5638 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5639 5640 /* flush the AP-station and all TDLS peers */ 5641 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5642 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5643 lockdep_is_held(&mvm->mutex)); 5644 if (IS_ERR_OR_NULL(sta)) 5645 continue; 5646 5647 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5648 if (mvmsta->vif != vif) 5649 continue; 5650 5651 if (sta == mvmvif->ap_sta) { 5652 if (ap_sta_done) 5653 continue; 5654 ap_sta_done = true; 5655 } 5656 5657 if (drop) { 5658 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5659 IWL_ERR(mvm, "flush request fail\n"); 5660 } else { 5661 if (iwl_mvm_has_new_tx_api(mvm)) 5662 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5663 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5664 msk |= mvmsta->tfd_queue_msk; 5665 } 5666 } 5667 5668 mutex_unlock(&mvm->mutex); 5669 5670 /* this can take a while, and we may need/want other operations 5671 * to succeed while doing this, so do it without the mutex held 5672 */ 5673 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5674 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5675 } 5676 5677 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5678 struct ieee80211_sta *sta) 5679 { 5680 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5681 int i; 5682 5683 mutex_lock(&mvm->mutex); 5684 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5685 struct iwl_mvm_sta *mvmsta; 5686 struct ieee80211_sta *tmp; 5687 5688 tmp = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5689 lockdep_is_held(&mvm->mutex)); 5690 if (tmp != sta) 5691 continue; 5692 5693 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5694 5695 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5696 IWL_ERR(mvm, "flush request fail\n"); 5697 } 5698 mutex_unlock(&mvm->mutex); 5699 } 5700 5701 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5702 struct survey_info *survey) 5703 { 5704 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5705 int ret; 5706 5707 memset(survey, 0, sizeof(*survey)); 5708 5709 /* only support global statistics right now */ 5710 if (idx != 0) 5711 return -ENOENT; 5712 5713 if (!fw_has_capa(&mvm->fw->ucode_capa, 5714 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5715 return -ENOENT; 5716 5717 mutex_lock(&mvm->mutex); 5718 5719 if (iwl_mvm_firmware_running(mvm)) { 5720 ret = iwl_mvm_request_statistics(mvm, false); 5721 if (ret) 5722 goto out; 5723 } 5724 5725 survey->filled = SURVEY_INFO_TIME | 5726 SURVEY_INFO_TIME_RX | 5727 SURVEY_INFO_TIME_TX | 5728 SURVEY_INFO_TIME_SCAN; 5729 survey->time = mvm->accu_radio_stats.on_time_rf + 5730 mvm->radio_stats.on_time_rf; 5731 do_div(survey->time, USEC_PER_MSEC); 5732 5733 survey->time_rx = mvm->accu_radio_stats.rx_time + 5734 mvm->radio_stats.rx_time; 5735 do_div(survey->time_rx, USEC_PER_MSEC); 5736 5737 survey->time_tx = mvm->accu_radio_stats.tx_time + 5738 mvm->radio_stats.tx_time; 5739 do_div(survey->time_tx, USEC_PER_MSEC); 5740 5741 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5742 mvm->radio_stats.on_time_scan; 5743 do_div(survey->time_scan, USEC_PER_MSEC); 5744 5745 ret = 0; 5746 out: 5747 mutex_unlock(&mvm->mutex); 5748 return ret; 5749 } 5750 5751 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5752 { 5753 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5754 u32 gi_ltf; 5755 5756 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5757 case RATE_MCS_CHAN_WIDTH_20: 5758 rinfo->bw = RATE_INFO_BW_20; 5759 break; 5760 case RATE_MCS_CHAN_WIDTH_40: 5761 rinfo->bw = RATE_INFO_BW_40; 5762 break; 5763 case RATE_MCS_CHAN_WIDTH_80: 5764 rinfo->bw = RATE_INFO_BW_80; 5765 break; 5766 case RATE_MCS_CHAN_WIDTH_160: 5767 rinfo->bw = RATE_INFO_BW_160; 5768 break; 5769 case RATE_MCS_CHAN_WIDTH_320: 5770 rinfo->bw = RATE_INFO_BW_320; 5771 break; 5772 } 5773 5774 if (format == RATE_MCS_CCK_MSK || 5775 format == RATE_MCS_LEGACY_OFDM_MSK) { 5776 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5777 5778 /* add the offset needed to get to the legacy ofdm indices */ 5779 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5780 rate += IWL_FIRST_OFDM_RATE; 5781 5782 switch (rate) { 5783 case IWL_RATE_1M_INDEX: 5784 rinfo->legacy = 10; 5785 break; 5786 case IWL_RATE_2M_INDEX: 5787 rinfo->legacy = 20; 5788 break; 5789 case IWL_RATE_5M_INDEX: 5790 rinfo->legacy = 55; 5791 break; 5792 case IWL_RATE_11M_INDEX: 5793 rinfo->legacy = 110; 5794 break; 5795 case IWL_RATE_6M_INDEX: 5796 rinfo->legacy = 60; 5797 break; 5798 case IWL_RATE_9M_INDEX: 5799 rinfo->legacy = 90; 5800 break; 5801 case IWL_RATE_12M_INDEX: 5802 rinfo->legacy = 120; 5803 break; 5804 case IWL_RATE_18M_INDEX: 5805 rinfo->legacy = 180; 5806 break; 5807 case IWL_RATE_24M_INDEX: 5808 rinfo->legacy = 240; 5809 break; 5810 case IWL_RATE_36M_INDEX: 5811 rinfo->legacy = 360; 5812 break; 5813 case IWL_RATE_48M_INDEX: 5814 rinfo->legacy = 480; 5815 break; 5816 case IWL_RATE_54M_INDEX: 5817 rinfo->legacy = 540; 5818 } 5819 return; 5820 } 5821 5822 rinfo->nss = u32_get_bits(rate_n_flags, 5823 RATE_MCS_NSS_MSK) + 1; 5824 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5825 RATE_HT_MCS_INDEX(rate_n_flags) : 5826 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5827 5828 if (rate_n_flags & RATE_MCS_SGI_MSK) 5829 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5830 5831 switch (format) { 5832 case RATE_MCS_EHT_MSK: 5833 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5834 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5835 break; 5836 case RATE_MCS_HE_MSK: 5837 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5838 5839 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5840 5841 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5842 rinfo->bw = RATE_INFO_BW_HE_RU; 5843 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5844 } 5845 5846 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5847 case RATE_MCS_HE_TYPE_SU: 5848 case RATE_MCS_HE_TYPE_EXT_SU: 5849 if (gi_ltf == 0 || gi_ltf == 1) 5850 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5851 else if (gi_ltf == 2) 5852 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5853 else if (gi_ltf == 3) 5854 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5855 else 5856 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5857 break; 5858 case RATE_MCS_HE_TYPE_MU: 5859 if (gi_ltf == 0 || gi_ltf == 1) 5860 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5861 else if (gi_ltf == 2) 5862 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5863 else 5864 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5865 break; 5866 case RATE_MCS_HE_TYPE_TRIG: 5867 if (gi_ltf == 0 || gi_ltf == 1) 5868 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5869 else 5870 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5871 break; 5872 } 5873 5874 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5875 rinfo->he_dcm = 1; 5876 break; 5877 case RATE_MCS_HT_MSK: 5878 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5879 break; 5880 case RATE_MCS_VHT_MSK: 5881 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5882 break; 5883 } 5884 } 5885 5886 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5887 struct ieee80211_vif *vif, 5888 struct ieee80211_sta *sta, 5889 struct station_info *sinfo) 5890 { 5891 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5892 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5893 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5894 5895 if (mvmsta->deflink.avg_energy) { 5896 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5897 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5898 } 5899 5900 if (iwl_mvm_has_tlc_offload(mvm)) { 5901 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5902 5903 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5904 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5905 } 5906 5907 /* if beacon filtering isn't on mac80211 does it anyway */ 5908 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5909 return; 5910 5911 if (!vif->cfg.assoc) 5912 return; 5913 5914 mutex_lock(&mvm->mutex); 5915 5916 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5917 goto unlock; 5918 5919 if (iwl_mvm_request_statistics(mvm, false)) 5920 goto unlock; 5921 5922 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5923 mvmvif->deflink.beacon_stats.accu_num_beacons; 5924 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5925 if (mvmvif->deflink.beacon_stats.avg_signal) { 5926 /* firmware only reports a value after RXing a few beacons */ 5927 sinfo->rx_beacon_signal_avg = 5928 mvmvif->deflink.beacon_stats.avg_signal; 5929 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5930 } 5931 unlock: 5932 mutex_unlock(&mvm->mutex); 5933 } 5934 5935 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5936 struct ieee80211_vif *vif, 5937 const struct ieee80211_mlme_event *mlme) 5938 { 5939 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5940 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5941 iwl_dbg_tlv_time_point(&mvm->fwrt, 5942 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5943 NULL); 5944 return; 5945 } 5946 5947 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5948 iwl_dbg_tlv_time_point(&mvm->fwrt, 5949 IWL_FW_INI_TIME_POINT_DEASSOC, 5950 NULL); 5951 return; 5952 } 5953 } 5954 5955 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5956 struct ieee80211_vif *vif, 5957 const struct ieee80211_event *event) 5958 { 5959 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5960 do { \ 5961 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5962 break; \ 5963 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5964 } while (0) 5965 5966 struct iwl_fw_dbg_trigger_tlv *trig; 5967 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5968 5969 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5970 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5971 return; 5972 } 5973 5974 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5975 FW_DBG_TRIGGER_MLME); 5976 if (!trig) 5977 return; 5978 5979 trig_mlme = (void *)trig->data; 5980 5981 if (event->u.mlme.data == ASSOC_EVENT) { 5982 if (event->u.mlme.status == MLME_DENIED) 5983 CHECK_MLME_TRIGGER(stop_assoc_denied, 5984 "DENIED ASSOC: reason %d", 5985 event->u.mlme.reason); 5986 else if (event->u.mlme.status == MLME_TIMEOUT) 5987 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5988 "ASSOC TIMEOUT"); 5989 } else if (event->u.mlme.data == AUTH_EVENT) { 5990 if (event->u.mlme.status == MLME_DENIED) 5991 CHECK_MLME_TRIGGER(stop_auth_denied, 5992 "DENIED AUTH: reason %d", 5993 event->u.mlme.reason); 5994 else if (event->u.mlme.status == MLME_TIMEOUT) 5995 CHECK_MLME_TRIGGER(stop_auth_timeout, 5996 "AUTH TIMEOUT"); 5997 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5998 CHECK_MLME_TRIGGER(stop_rx_deauth, 5999 "DEAUTH RX %d", event->u.mlme.reason); 6000 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6001 CHECK_MLME_TRIGGER(stop_tx_deauth, 6002 "DEAUTH TX %d", event->u.mlme.reason); 6003 } 6004 #undef CHECK_MLME_TRIGGER 6005 } 6006 6007 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6008 struct ieee80211_vif *vif, 6009 const struct ieee80211_event *event) 6010 { 6011 struct iwl_fw_dbg_trigger_tlv *trig; 6012 struct iwl_fw_dbg_trigger_ba *ba_trig; 6013 6014 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6015 FW_DBG_TRIGGER_BA); 6016 if (!trig) 6017 return; 6018 6019 ba_trig = (void *)trig->data; 6020 6021 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6022 return; 6023 6024 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6025 "BAR received from %pM, tid %d, ssn %d", 6026 event->u.ba.sta->addr, event->u.ba.tid, 6027 event->u.ba.ssn); 6028 } 6029 6030 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6031 struct ieee80211_vif *vif, 6032 const struct ieee80211_event *event) 6033 { 6034 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6035 6036 switch (event->type) { 6037 case MLME_EVENT: 6038 iwl_mvm_event_mlme_callback(mvm, vif, event); 6039 break; 6040 case BAR_RX_EVENT: 6041 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6042 break; 6043 case BA_FRAME_TIMEOUT: 6044 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6045 event->u.ba.tid); 6046 break; 6047 default: 6048 break; 6049 } 6050 } 6051 6052 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6053 enum iwl_mvm_rxq_notif_type type, 6054 bool sync, 6055 const void *data, u32 size) 6056 { 6057 struct { 6058 struct iwl_rxq_sync_cmd cmd; 6059 struct iwl_mvm_internal_rxq_notif notif; 6060 } __packed cmd = { 6061 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6062 .cmd.count = 6063 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6064 size), 6065 .notif.type = type, 6066 .notif.sync = sync, 6067 }; 6068 struct iwl_host_cmd hcmd = { 6069 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6070 .data[0] = &cmd, 6071 .len[0] = sizeof(cmd), 6072 .data[1] = data, 6073 .len[1] = size, 6074 .flags = sync ? 0 : CMD_ASYNC, 6075 }; 6076 int ret; 6077 6078 /* size must be a multiple of DWORD */ 6079 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6080 return; 6081 6082 if (!iwl_mvm_has_new_rx_api(mvm)) 6083 return; 6084 6085 if (sync) { 6086 cmd.notif.cookie = mvm->queue_sync_cookie; 6087 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6088 } 6089 6090 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6091 if (ret) { 6092 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6093 goto out; 6094 } 6095 6096 if (sync) { 6097 lockdep_assert_held(&mvm->mutex); 6098 ret = wait_event_timeout(mvm->rx_sync_waitq, 6099 READ_ONCE(mvm->queue_sync_state) == 0 || 6100 iwl_mvm_is_radio_killed(mvm), 6101 HZ); 6102 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6103 "queue sync: failed to sync, state is 0x%lx\n", 6104 mvm->queue_sync_state); 6105 } 6106 6107 out: 6108 if (sync) { 6109 mvm->queue_sync_state = 0; 6110 mvm->queue_sync_cookie++; 6111 } 6112 } 6113 6114 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6115 { 6116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6117 6118 mutex_lock(&mvm->mutex); 6119 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6120 mutex_unlock(&mvm->mutex); 6121 } 6122 6123 int 6124 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6125 struct ieee80211_vif *vif, 6126 struct cfg80211_ftm_responder_stats *stats) 6127 { 6128 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6129 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6130 6131 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6132 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6133 return -EINVAL; 6134 6135 mutex_lock(&mvm->mutex); 6136 *stats = mvm->ftm_resp_stats; 6137 mutex_unlock(&mvm->mutex); 6138 6139 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6140 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6141 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6142 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6143 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6144 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6145 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6146 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6147 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6148 6149 return 0; 6150 } 6151 6152 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6153 struct cfg80211_pmsr_request *request) 6154 { 6155 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6156 int ret; 6157 6158 mutex_lock(&mvm->mutex); 6159 ret = iwl_mvm_ftm_start(mvm, vif, request); 6160 mutex_unlock(&mvm->mutex); 6161 6162 return ret; 6163 } 6164 6165 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6166 struct cfg80211_pmsr_request *request) 6167 { 6168 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6169 6170 mutex_lock(&mvm->mutex); 6171 iwl_mvm_ftm_abort(mvm, request); 6172 mutex_unlock(&mvm->mutex); 6173 } 6174 6175 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6176 { 6177 u8 protocol = ip_hdr(skb)->protocol; 6178 6179 if (!IS_ENABLED(CONFIG_INET)) 6180 return false; 6181 6182 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6183 } 6184 6185 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6186 struct sk_buff *head, 6187 struct sk_buff *skb) 6188 { 6189 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6190 6191 /* For now don't aggregate IPv6 in AMSDU */ 6192 if (skb->protocol != htons(ETH_P_IP)) 6193 return false; 6194 6195 if (!iwl_mvm_is_csum_supported(mvm)) 6196 return true; 6197 6198 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6199 } 6200 6201 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6202 struct ieee80211_vif *vif, 6203 struct cfg80211_set_hw_timestamp *hwts) 6204 { 6205 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6206 u32 protocols = 0; 6207 int ret; 6208 6209 /* HW timestamping is only supported for a specific station */ 6210 if (!hwts->macaddr) 6211 return -EOPNOTSUPP; 6212 6213 if (hwts->enable) 6214 protocols = 6215 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6216 6217 mutex_lock(&mvm->mutex); 6218 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6219 mutex_unlock(&mvm->mutex); 6220 6221 return ret; 6222 } 6223 6224 const struct ieee80211_ops iwl_mvm_hw_ops = { 6225 .tx = iwl_mvm_mac_tx, 6226 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6227 .ampdu_action = iwl_mvm_mac_ampdu_action, 6228 .get_antenna = iwl_mvm_op_get_antenna, 6229 .set_antenna = iwl_mvm_op_set_antenna, 6230 .start = iwl_mvm_mac_start, 6231 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6232 .stop = iwl_mvm_mac_stop, 6233 .add_interface = iwl_mvm_mac_add_interface, 6234 .remove_interface = iwl_mvm_mac_remove_interface, 6235 .config = iwl_mvm_mac_config, 6236 .prepare_multicast = iwl_mvm_prepare_multicast, 6237 .configure_filter = iwl_mvm_configure_filter, 6238 .config_iface_filter = iwl_mvm_config_iface_filter, 6239 .bss_info_changed = iwl_mvm_bss_info_changed, 6240 .hw_scan = iwl_mvm_mac_hw_scan, 6241 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6242 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6243 .sta_state = iwl_mvm_mac_sta_state, 6244 .sta_notify = iwl_mvm_mac_sta_notify, 6245 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6246 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6247 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6248 .sta_rc_update = iwl_mvm_sta_rc_update, 6249 .conf_tx = iwl_mvm_mac_conf_tx, 6250 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6251 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6252 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6253 .flush = iwl_mvm_mac_flush, 6254 .flush_sta = iwl_mvm_mac_flush_sta, 6255 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6256 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6257 .set_key = iwl_mvm_mac_set_key, 6258 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6259 .remain_on_channel = iwl_mvm_roc, 6260 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6261 .add_chanctx = iwl_mvm_add_chanctx, 6262 .remove_chanctx = iwl_mvm_remove_chanctx, 6263 .change_chanctx = iwl_mvm_change_chanctx, 6264 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6265 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6266 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6267 6268 .start_ap = iwl_mvm_start_ap, 6269 .stop_ap = iwl_mvm_stop_ap, 6270 .join_ibss = iwl_mvm_start_ibss, 6271 .leave_ibss = iwl_mvm_stop_ibss, 6272 6273 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6274 6275 .set_tim = iwl_mvm_set_tim, 6276 6277 .channel_switch = iwl_mvm_channel_switch, 6278 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6279 .post_channel_switch = iwl_mvm_post_channel_switch, 6280 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6281 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6282 6283 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6284 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6285 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6286 6287 .event_callback = iwl_mvm_mac_event_callback, 6288 6289 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6290 6291 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6292 6293 #ifdef CONFIG_PM_SLEEP 6294 /* look at d3.c */ 6295 .suspend = iwl_mvm_suspend, 6296 .resume = iwl_mvm_resume, 6297 .set_wakeup = iwl_mvm_set_wakeup, 6298 .set_rekey_data = iwl_mvm_set_rekey_data, 6299 #if IS_ENABLED(CONFIG_IPV6) 6300 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6301 #endif 6302 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6303 #endif 6304 .get_survey = iwl_mvm_mac_get_survey, 6305 .sta_statistics = iwl_mvm_mac_sta_statistics, 6306 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6307 .start_pmsr = iwl_mvm_start_pmsr, 6308 .abort_pmsr = iwl_mvm_abort_pmsr, 6309 6310 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6311 #ifdef CONFIG_IWLWIFI_DEBUGFS 6312 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6313 #endif 6314 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6315 }; 6316