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