1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2022 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 *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 __le16_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 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 249 { 250 .iftype = NL80211_IFTYPE_STATION, 251 .extended_capabilities = he_if_types_ext_capa_sta, 252 .extended_capabilities_mask = he_if_types_ext_capa_sta, 253 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 254 }, 255 { 256 .iftype = NL80211_IFTYPE_STATION, 257 .extended_capabilities = tm_if_types_ext_capa_sta, 258 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 259 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 260 /* relevant only if EHT is supported */ 261 .eml_capabilities = IEEE80211_EML_CAP_EMLSR_SUPP, 262 }, 263 }; 264 265 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 266 { 267 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 268 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 269 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 270 return 0; 271 } 272 273 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 274 { 275 struct ieee80211_hw *hw = mvm->hw; 276 int num_mac, ret, i; 277 static const u32 mvm_ciphers[] = { 278 WLAN_CIPHER_SUITE_WEP40, 279 WLAN_CIPHER_SUITE_WEP104, 280 WLAN_CIPHER_SUITE_TKIP, 281 WLAN_CIPHER_SUITE_CCMP, 282 }; 283 #ifdef CONFIG_PM_SLEEP 284 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 285 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 286 #endif 287 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 288 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 289 290 /* Tell mac80211 our characteristics */ 291 ieee80211_hw_set(hw, SIGNAL_DBM); 292 ieee80211_hw_set(hw, SPECTRUM_MGMT); 293 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 294 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 295 ieee80211_hw_set(hw, SUPPORTS_PS); 296 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 297 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 298 ieee80211_hw_set(hw, CONNECTION_MONITOR); 299 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 300 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 301 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 302 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 303 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 304 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 305 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 306 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 307 308 /* With MLD FW API, it tracks timing by itself, 309 * no need for any timing from the host 310 */ 311 if (!mvm->mld_api_is_used) 312 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 313 314 /* We should probably have this, but mac80211 315 * currently doesn't support it for MLO. 316 */ 317 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 318 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 319 320 /* 321 * On older devices, enabling TX A-MSDU occasionally leads to 322 * something getting messed up, the command read from the FIFO 323 * gets out of sync and isn't a TX command, so that we have an 324 * assert EDC. 325 * 326 * It's not clear where the bug is, but since we didn't used to 327 * support A-MSDU until moving the mac80211 iTXQs, just leave it 328 * for older devices. We also don't see this issue on any newer 329 * devices. 330 */ 331 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 332 ieee80211_hw_set(hw, TX_AMSDU); 333 ieee80211_hw_set(hw, TX_FRAG_LIST); 334 335 if (iwl_mvm_has_tlc_offload(mvm)) { 336 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 337 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 338 } 339 340 if (iwl_mvm_has_new_rx_api(mvm)) 341 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 342 343 if (fw_has_capa(&mvm->fw->ucode_capa, 344 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 345 ieee80211_hw_set(hw, AP_LINK_PS); 346 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 347 /* 348 * we absolutely need this for the new TX API since that comes 349 * with many more queues than the current code can deal with 350 * for station powersave 351 */ 352 return -EINVAL; 353 } 354 355 if (mvm->trans->num_rx_queues > 1) 356 ieee80211_hw_set(hw, USES_RSS); 357 358 if (mvm->trans->max_skb_frags) 359 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 360 361 hw->queues = IEEE80211_NUM_ACS; 362 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 363 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 364 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 365 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 366 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 367 368 hw->radiotap_timestamp.units_pos = 369 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 370 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 371 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 372 hw->radiotap_timestamp.accuracy = 22; 373 374 if (!iwl_mvm_has_tlc_offload(mvm)) 375 hw->rate_control_algorithm = RS_NAME; 376 377 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 378 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 379 hw->max_tx_fragments = mvm->trans->max_skb_frags; 380 381 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 382 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 383 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 384 hw->wiphy->cipher_suites = mvm->ciphers; 385 386 if (iwl_mvm_has_new_rx_api(mvm)) { 387 mvm->ciphers[hw->wiphy->n_cipher_suites] = 388 WLAN_CIPHER_SUITE_GCMP; 389 hw->wiphy->n_cipher_suites++; 390 mvm->ciphers[hw->wiphy->n_cipher_suites] = 391 WLAN_CIPHER_SUITE_GCMP_256; 392 hw->wiphy->n_cipher_suites++; 393 } 394 395 if (iwlwifi_mod_params.swcrypto) 396 IWL_ERR(mvm, 397 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 398 if (!iwlwifi_mod_params.bt_coex_active) 399 IWL_ERR(mvm, 400 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 401 402 ieee80211_hw_set(hw, MFP_CAPABLE); 403 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 404 hw->wiphy->n_cipher_suites++; 405 if (iwl_mvm_has_new_rx_api(mvm)) { 406 mvm->ciphers[hw->wiphy->n_cipher_suites] = 407 WLAN_CIPHER_SUITE_BIP_GMAC_128; 408 hw->wiphy->n_cipher_suites++; 409 mvm->ciphers[hw->wiphy->n_cipher_suites] = 410 WLAN_CIPHER_SUITE_BIP_GMAC_256; 411 hw->wiphy->n_cipher_suites++; 412 } 413 414 wiphy_ext_feature_set(hw->wiphy, 415 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 416 417 if (fw_has_capa(&mvm->fw->ucode_capa, 418 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 419 wiphy_ext_feature_set(hw->wiphy, 420 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 421 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 422 } 423 424 if (sec_key_ver && 425 fw_has_capa(&mvm->fw->ucode_capa, 426 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 427 wiphy_ext_feature_set(hw->wiphy, 428 NL80211_EXT_FEATURE_BEACON_PROTECTION); 429 else if (fw_has_capa(&mvm->fw->ucode_capa, 430 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 431 wiphy_ext_feature_set(hw->wiphy, 432 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 433 434 if (fw_has_capa(&mvm->fw->ucode_capa, 435 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 436 hw->wiphy->hw_timestamp_max_peers = 1; 437 438 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 439 hw->wiphy->features |= 440 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 441 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 442 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 443 444 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 445 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 446 hw->chanctx_data_size = sizeof(u16); 447 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 448 449 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 450 BIT(NL80211_IFTYPE_P2P_CLIENT) | 451 BIT(NL80211_IFTYPE_AP) | 452 BIT(NL80211_IFTYPE_P2P_GO) | 453 BIT(NL80211_IFTYPE_P2P_DEVICE) | 454 BIT(NL80211_IFTYPE_ADHOC); 455 456 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 457 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 458 459 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 460 * the hw, preventing us to control which key(id) to use per MPDU. 461 * Till that's fixed we can't use Extended Key ID for the newer cards. 462 */ 463 if (!iwl_mvm_has_new_tx_api(mvm)) 464 wiphy_ext_feature_set(hw->wiphy, 465 NL80211_EXT_FEATURE_EXT_KEY_ID); 466 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 467 468 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 469 if (iwl_mvm_is_lar_supported(mvm)) 470 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 471 else 472 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 473 REGULATORY_DISABLE_BEACON_HINTS; 474 475 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 476 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 477 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 478 479 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 480 hw->wiphy->n_iface_combinations = 481 ARRAY_SIZE(iwl_mvm_iface_combinations); 482 483 hw->wiphy->max_remain_on_channel_duration = 10000; 484 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 485 486 /* Extract MAC address */ 487 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 488 hw->wiphy->addresses = mvm->addresses; 489 hw->wiphy->n_addresses = 1; 490 491 /* Extract additional MAC addresses if available */ 492 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 493 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 494 495 for (i = 1; i < num_mac; i++) { 496 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 497 ETH_ALEN); 498 mvm->addresses[i].addr[5]++; 499 hw->wiphy->n_addresses++; 500 } 501 502 iwl_mvm_reset_phy_ctxts(mvm); 503 504 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 505 506 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 507 508 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 509 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 510 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 511 512 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 513 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 514 else 515 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 516 517 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 518 hw->wiphy->bands[NL80211_BAND_2GHZ] = 519 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 520 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 521 hw->wiphy->bands[NL80211_BAND_5GHZ] = 522 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 523 524 if (fw_has_capa(&mvm->fw->ucode_capa, 525 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 526 fw_has_api(&mvm->fw->ucode_capa, 527 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 528 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 529 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 530 } 531 if (fw_has_capa(&mvm->fw->ucode_capa, 532 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 533 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 534 hw->wiphy->bands[NL80211_BAND_6GHZ] = 535 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 536 537 hw->wiphy->hw_version = mvm->trans->hw_id; 538 539 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 540 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 541 else 542 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 543 544 hw->wiphy->max_sched_scan_reqs = 1; 545 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 546 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 547 /* we create the 802.11 header and zero length SSID IE. */ 548 hw->wiphy->max_sched_scan_ie_len = 549 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 550 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 551 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 552 553 /* 554 * the firmware uses u8 for num of iterations, but 0xff is saved for 555 * infinite loop, so the maximum number of iterations is actually 254. 556 */ 557 hw->wiphy->max_sched_scan_plan_iterations = 254; 558 559 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 560 NL80211_FEATURE_LOW_PRIORITY_SCAN | 561 NL80211_FEATURE_P2P_GO_OPPPS | 562 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 563 NL80211_FEATURE_DYNAMIC_SMPS | 564 NL80211_FEATURE_STATIC_SMPS | 565 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 566 567 if (fw_has_capa(&mvm->fw->ucode_capa, 568 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 569 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 570 if (fw_has_capa(&mvm->fw->ucode_capa, 571 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 572 hw->wiphy->features |= NL80211_FEATURE_QUIET; 573 574 if (fw_has_capa(&mvm->fw->ucode_capa, 575 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 576 hw->wiphy->features |= 577 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 578 579 if (fw_has_capa(&mvm->fw->ucode_capa, 580 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 581 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 582 583 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 584 IWL_FW_CMD_VER_UNKNOWN) == 3) 585 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 586 587 if (fw_has_api(&mvm->fw->ucode_capa, 588 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 589 wiphy_ext_feature_set(hw->wiphy, 590 NL80211_EXT_FEATURE_SCAN_START_TIME); 591 wiphy_ext_feature_set(hw->wiphy, 592 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 593 } 594 595 if (iwl_mvm_is_oce_supported(mvm)) { 596 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 597 598 wiphy_ext_feature_set(hw->wiphy, 599 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 600 wiphy_ext_feature_set(hw->wiphy, 601 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 602 wiphy_ext_feature_set(hw->wiphy, 603 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 604 605 /* Old firmware also supports probe deferral and suppression */ 606 if (scan_ver < 15) 607 wiphy_ext_feature_set(hw->wiphy, 608 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 609 } 610 611 hw->wiphy->iftype_ext_capab = NULL; 612 hw->wiphy->num_iftype_ext_capab = 0; 613 614 if (mvm->nvm_data->sku_cap_11ax_enable && 615 !iwlwifi_mod_params.disable_11ax) { 616 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 617 hw->wiphy->num_iftype_ext_capab = 618 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 619 620 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 621 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 622 } 623 624 if (iwl_fw_lookup_cmd_ver(mvm->fw, 625 WIDE_ID(DATA_PATH_GROUP, 626 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 627 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 628 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 629 630 if (!hw->wiphy->iftype_ext_capab) { 631 hw->wiphy->num_iftype_ext_capab = 1; 632 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 633 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 634 } else { 635 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 636 } 637 } 638 639 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 640 641 #ifdef CONFIG_PM_SLEEP 642 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 643 mvm->trans->ops->d3_suspend && 644 mvm->trans->ops->d3_resume && 645 device_can_wakeup(mvm->trans->dev)) { 646 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 647 WIPHY_WOWLAN_DISCONNECT | 648 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 649 WIPHY_WOWLAN_RFKILL_RELEASE | 650 WIPHY_WOWLAN_NET_DETECT; 651 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 652 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 653 WIPHY_WOWLAN_4WAY_HANDSHAKE; 654 655 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 656 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 657 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 658 mvm->wowlan.max_nd_match_sets = 659 iwl_umac_scan_get_max_profiles(mvm->fw); 660 hw->wiphy->wowlan = &mvm->wowlan; 661 } 662 #endif 663 664 ret = iwl_mvm_leds_init(mvm); 665 if (ret) 666 return ret; 667 668 if (fw_has_capa(&mvm->fw->ucode_capa, 669 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 670 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 671 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 672 ieee80211_hw_set(hw, TDLS_WIDER_BW); 673 } 674 675 if (fw_has_capa(&mvm->fw->ucode_capa, 676 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 677 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 678 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 679 } 680 681 hw->netdev_features |= mvm->cfg->features; 682 if (!iwl_mvm_is_csum_supported(mvm)) 683 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 684 685 if (mvm->cfg->vht_mu_mimo_supported) 686 wiphy_ext_feature_set(hw->wiphy, 687 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 688 689 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 690 wiphy_ext_feature_set(hw->wiphy, 691 NL80211_EXT_FEATURE_PROTECTED_TWT); 692 693 iwl_mvm_vendor_cmds_register(mvm); 694 695 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 696 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 697 698 ret = ieee80211_register_hw(mvm->hw); 699 if (ret) { 700 iwl_mvm_leds_exit(mvm); 701 } 702 703 return ret; 704 } 705 706 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 707 struct ieee80211_sta *sta) 708 { 709 if (likely(sta)) { 710 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 711 return; 712 } else { 713 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 714 return; 715 } 716 717 ieee80211_free_txskb(mvm->hw, skb); 718 } 719 720 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 721 struct ieee80211_tx_control *control, struct sk_buff *skb) 722 { 723 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 724 struct ieee80211_sta *sta = control->sta; 725 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 726 struct ieee80211_hdr *hdr = (void *)skb->data; 727 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 728 IEEE80211_TX_CTL_TX_OFFCHAN; 729 u32 link_id = u32_get_bits(info->control.flags, 730 IEEE80211_TX_CTRL_MLO_LINK); 731 struct ieee80211_sta *tmp_sta = sta; 732 733 if (iwl_mvm_is_radio_killed(mvm)) { 734 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 735 goto drop; 736 } 737 738 if (offchannel && 739 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 740 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 741 goto drop; 742 743 /* 744 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 745 * so we treat the others as broadcast 746 */ 747 if (ieee80211_is_mgmt(hdr->frame_control)) 748 sta = NULL; 749 750 /* If there is no sta, and it's not offchannel - send through AP */ 751 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 752 !offchannel) { 753 struct iwl_mvm_vif *mvmvif = 754 iwl_mvm_vif_from_mac80211(info->control.vif); 755 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 756 757 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 758 /* mac80211 holds rcu read lock */ 759 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 760 if (IS_ERR_OR_NULL(sta)) 761 goto drop; 762 } 763 } 764 765 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 766 !ieee80211_is_probe_resp(hdr->frame_control)) { 767 /* translate MLD addresses to LINK addresses */ 768 struct ieee80211_link_sta *link_sta = 769 rcu_dereference(tmp_sta->link[link_id]); 770 struct ieee80211_bss_conf *link_conf = 771 rcu_dereference(info->control.vif->link_conf[link_id]); 772 struct ieee80211_mgmt *mgmt; 773 774 if (WARN_ON(!link_sta || !link_conf)) 775 goto drop; 776 777 /* if sta is NULL, the frame is a management frame */ 778 mgmt = (void *)hdr; 779 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 780 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 781 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 782 } 783 784 iwl_mvm_tx_skb(mvm, skb, sta); 785 return; 786 drop: 787 ieee80211_free_txskb(hw, skb); 788 } 789 790 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 791 { 792 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 793 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 794 struct sk_buff *skb = NULL; 795 796 /* 797 * No need for threads to be pending here, they can leave the first 798 * taker all the work. 799 * 800 * mvmtxq->tx_request logic: 801 * 802 * If 0, no one is currently TXing, set to 1 to indicate current thread 803 * will now start TX and other threads should quit. 804 * 805 * If 1, another thread is currently TXing, set to 2 to indicate to 806 * that thread that there was another request. Since that request may 807 * have raced with the check whether the queue is empty, the TXing 808 * thread should check the queue's status one more time before leaving. 809 * This check is done in order to not leave any TX hanging in the queue 810 * until the next TX invocation (which may not even happen). 811 * 812 * If 2, another thread is currently TXing, and it will already double 813 * check the queue, so do nothing. 814 */ 815 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 816 return; 817 818 rcu_read_lock(); 819 do { 820 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 821 &mvmtxq->state) && 822 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 823 &mvmtxq->state) && 824 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 825 skb = ieee80211_tx_dequeue(hw, txq); 826 827 if (!skb) { 828 if (txq->sta) 829 IWL_DEBUG_TX(mvm, 830 "TXQ of sta %pM tid %d is now empty\n", 831 txq->sta->addr, 832 txq->tid); 833 break; 834 } 835 836 iwl_mvm_tx_skb(mvm, skb, txq->sta); 837 } 838 } while (atomic_dec_return(&mvmtxq->tx_request)); 839 rcu_read_unlock(); 840 } 841 842 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 843 struct ieee80211_txq *txq) 844 { 845 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 846 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 847 848 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 849 !txq->sta) { 850 iwl_mvm_mac_itxq_xmit(hw, txq); 851 return; 852 } 853 854 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 855 * to handle any packets we leave on the txq now 856 */ 857 858 spin_lock_bh(&mvm->add_stream_lock); 859 /* The list is being deleted only after the queue is fully allocated. */ 860 if (list_empty(&mvmtxq->list) && 861 /* recheck under lock */ 862 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 863 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 864 schedule_work(&mvm->add_stream_wk); 865 } 866 spin_unlock_bh(&mvm->add_stream_lock); 867 } 868 869 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 870 do { \ 871 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 872 break; \ 873 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 874 } while (0) 875 876 static void 877 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 878 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 879 enum ieee80211_ampdu_mlme_action action) 880 { 881 struct iwl_fw_dbg_trigger_tlv *trig; 882 struct iwl_fw_dbg_trigger_ba *ba_trig; 883 884 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 885 FW_DBG_TRIGGER_BA); 886 if (!trig) 887 return; 888 889 ba_trig = (void *)trig->data; 890 891 switch (action) { 892 case IEEE80211_AMPDU_TX_OPERATIONAL: { 893 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 894 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 895 896 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 897 "TX AGG START: MAC %pM tid %d ssn %d\n", 898 sta->addr, tid, tid_data->ssn); 899 break; 900 } 901 case IEEE80211_AMPDU_TX_STOP_CONT: 902 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 903 "TX AGG STOP: MAC %pM tid %d\n", 904 sta->addr, tid); 905 break; 906 case IEEE80211_AMPDU_RX_START: 907 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 908 "RX AGG START: MAC %pM tid %d ssn %d\n", 909 sta->addr, tid, rx_ba_ssn); 910 break; 911 case IEEE80211_AMPDU_RX_STOP: 912 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 913 "RX AGG STOP: MAC %pM tid %d\n", 914 sta->addr, tid); 915 break; 916 default: 917 break; 918 } 919 } 920 921 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 922 struct ieee80211_vif *vif, 923 struct ieee80211_ampdu_params *params) 924 { 925 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 926 int ret; 927 struct ieee80211_sta *sta = params->sta; 928 enum ieee80211_ampdu_mlme_action action = params->action; 929 u16 tid = params->tid; 930 u16 *ssn = ¶ms->ssn; 931 u16 buf_size = params->buf_size; 932 bool amsdu = params->amsdu; 933 u16 timeout = params->timeout; 934 935 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 936 sta->addr, tid, action); 937 938 if (!(mvm->nvm_data->sku_cap_11n_enable)) 939 return -EACCES; 940 941 mutex_lock(&mvm->mutex); 942 943 switch (action) { 944 case IEEE80211_AMPDU_RX_START: 945 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 946 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 947 struct iwl_mvm_vif *mvmvif; 948 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 949 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 950 951 mdata->opened_rx_ba_sessions = true; 952 mvmvif = iwl_mvm_vif_from_mac80211(vif); 953 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 954 } 955 if (!iwl_enable_rx_ampdu()) { 956 ret = -EINVAL; 957 break; 958 } 959 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 960 timeout); 961 break; 962 case IEEE80211_AMPDU_RX_STOP: 963 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 964 timeout); 965 break; 966 case IEEE80211_AMPDU_TX_START: 967 if (!iwl_enable_tx_ampdu()) { 968 ret = -EINVAL; 969 break; 970 } 971 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 972 break; 973 case IEEE80211_AMPDU_TX_STOP_CONT: 974 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 975 break; 976 case IEEE80211_AMPDU_TX_STOP_FLUSH: 977 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 978 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 979 break; 980 case IEEE80211_AMPDU_TX_OPERATIONAL: 981 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 982 buf_size, amsdu); 983 break; 984 default: 985 WARN_ON_ONCE(1); 986 ret = -EINVAL; 987 break; 988 } 989 990 if (!ret) { 991 u16 rx_ba_ssn = 0; 992 993 if (action == IEEE80211_AMPDU_RX_START) 994 rx_ba_ssn = *ssn; 995 996 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 997 rx_ba_ssn, action); 998 } 999 mutex_unlock(&mvm->mutex); 1000 1001 return ret; 1002 } 1003 1004 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1005 struct ieee80211_vif *vif) 1006 { 1007 struct iwl_mvm *mvm = data; 1008 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1009 struct iwl_probe_resp_data *probe_data; 1010 unsigned int link_id; 1011 1012 mvmvif->uploaded = false; 1013 1014 spin_lock_bh(&mvm->time_event_lock); 1015 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1016 spin_unlock_bh(&mvm->time_event_lock); 1017 1018 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1019 1020 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1021 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1022 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1023 mvmvif->link[link_id]->phy_ctxt = NULL; 1024 mvmvif->link[link_id]->active = 0; 1025 } 1026 1027 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1028 lockdep_is_held(&mvm->mutex)); 1029 if (probe_data) 1030 kfree_rcu(probe_data, rcu_head); 1031 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1032 } 1033 1034 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1035 { 1036 iwl_mvm_stop_device(mvm); 1037 1038 mvm->cur_aid = 0; 1039 1040 mvm->scan_status = 0; 1041 mvm->ps_disabled = false; 1042 mvm->rfkill_safe_init_done = false; 1043 1044 /* just in case one was running */ 1045 iwl_mvm_cleanup_roc_te(mvm); 1046 ieee80211_remain_on_channel_expired(mvm->hw); 1047 1048 iwl_mvm_ftm_restart(mvm); 1049 1050 /* 1051 * cleanup all interfaces, even inactive ones, as some might have 1052 * gone down during the HW restart 1053 */ 1054 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1055 1056 mvm->p2p_device_vif = NULL; 1057 1058 iwl_mvm_reset_phy_ctxts(mvm); 1059 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1060 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1061 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1062 1063 ieee80211_wake_queues(mvm->hw); 1064 1065 mvm->rx_ba_sessions = 0; 1066 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1067 mvm->monitor_on = false; 1068 #ifdef CONFIG_IWLWIFI_DEBUGFS 1069 mvm->beacon_inject_active = false; 1070 #endif 1071 1072 /* keep statistics ticking */ 1073 iwl_mvm_accu_radio_stats(mvm); 1074 } 1075 1076 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1077 { 1078 int ret; 1079 1080 lockdep_assert_held(&mvm->mutex); 1081 1082 ret = iwl_mvm_mei_get_ownership(mvm); 1083 if (ret) 1084 return ret; 1085 1086 if (mvm->mei_nvm_data) { 1087 /* We got the NIC, we can now free the MEI NVM data */ 1088 kfree(mvm->mei_nvm_data); 1089 mvm->mei_nvm_data = NULL; 1090 1091 /* 1092 * We can't free the nvm_data we allocated based on the SAP 1093 * data because we registered to cfg80211 with the channels 1094 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1095 * just in order to be able free it later. 1096 * NULLify nvm_data so that we will read the NVM from the 1097 * firmware this time. 1098 */ 1099 mvm->temp_nvm_data = mvm->nvm_data; 1100 mvm->nvm_data = NULL; 1101 } 1102 1103 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1104 /* 1105 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1106 * so later code will - from now on - see that we're doing it. 1107 */ 1108 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1109 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1110 /* Clean up some internal and mac80211 state on restart */ 1111 iwl_mvm_restart_cleanup(mvm); 1112 } 1113 ret = iwl_mvm_up(mvm); 1114 1115 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1116 NULL); 1117 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1118 NULL); 1119 1120 mvm->last_reset_or_resume_time_jiffies = jiffies; 1121 1122 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1123 /* Something went wrong - we need to finish some cleanup 1124 * that normally iwl_mvm_mac_restart_complete() below 1125 * would do. 1126 */ 1127 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1128 } 1129 1130 return ret; 1131 } 1132 1133 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1134 { 1135 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1136 int ret; 1137 int retry, max_retry = 0; 1138 1139 mutex_lock(&mvm->mutex); 1140 1141 /* we are starting the mac not in error flow, and restart is enabled */ 1142 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1143 iwlwifi_mod_params.fw_restart) { 1144 max_retry = IWL_MAX_INIT_RETRY; 1145 /* 1146 * This will prevent mac80211 recovery flows to trigger during 1147 * init failures 1148 */ 1149 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1150 } 1151 1152 for (retry = 0; retry <= max_retry; retry++) { 1153 ret = __iwl_mvm_mac_start(mvm); 1154 if (!ret) 1155 break; 1156 1157 /* 1158 * In PLDR sync PCI re-enumeration is needed. no point to retry 1159 * mac start before that. 1160 */ 1161 if (mvm->pldr_sync) { 1162 iwl_mei_alive_notif(false); 1163 iwl_trans_pcie_remove(mvm->trans, true); 1164 break; 1165 } 1166 1167 IWL_ERR(mvm, "mac start retry %d\n", retry); 1168 } 1169 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1170 1171 mutex_unlock(&mvm->mutex); 1172 1173 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1174 1175 return ret; 1176 } 1177 1178 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1179 { 1180 int ret; 1181 1182 mutex_lock(&mvm->mutex); 1183 1184 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1185 1186 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1187 if (ret) 1188 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1189 ret); 1190 1191 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1192 1193 /* 1194 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1195 * of packets the FW sent out, so we must reconnect. 1196 */ 1197 iwl_mvm_teardown_tdls_peers(mvm); 1198 1199 mutex_unlock(&mvm->mutex); 1200 } 1201 1202 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1203 enum ieee80211_reconfig_type reconfig_type) 1204 { 1205 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1206 1207 switch (reconfig_type) { 1208 case IEEE80211_RECONFIG_TYPE_RESTART: 1209 iwl_mvm_restart_complete(mvm); 1210 break; 1211 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1212 break; 1213 } 1214 } 1215 1216 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1217 { 1218 lockdep_assert_held(&mvm->mutex); 1219 1220 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1221 1222 /* firmware counters are obviously reset now, but we shouldn't 1223 * partially track so also clear the fw_reset_accu counters. 1224 */ 1225 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1226 1227 /* async_handlers_wk is now blocked */ 1228 1229 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) < 12) 1230 iwl_mvm_rm_aux_sta(mvm); 1231 1232 iwl_mvm_stop_device(mvm); 1233 1234 iwl_mvm_async_handlers_purge(mvm); 1235 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1236 1237 /* 1238 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1239 * hw (as restart_complete() won't be called in this case) and mac80211 1240 * won't execute the restart. 1241 * But make sure to cleanup interfaces that have gone down before/during 1242 * HW restart was requested. 1243 */ 1244 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1245 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1246 &mvm->status)) 1247 ieee80211_iterate_interfaces(mvm->hw, 0, 1248 iwl_mvm_cleanup_iterator, mvm); 1249 1250 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1251 * make sure there's nothing left there and warn if any is found. 1252 */ 1253 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1254 int i; 1255 1256 for (i = 0; i < mvm->max_scans; i++) { 1257 if (WARN_ONCE(mvm->scan_uid_status[i], 1258 "UMAC scan UID %d status was not cleaned\n", 1259 i)) 1260 mvm->scan_uid_status[i] = 0; 1261 } 1262 } 1263 } 1264 1265 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1266 { 1267 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1268 1269 flush_work(&mvm->async_handlers_wk); 1270 flush_work(&mvm->add_stream_wk); 1271 1272 /* 1273 * Lock and clear the firmware running bit here already, so that 1274 * new commands coming in elsewhere, e.g. from debugfs, will not 1275 * be able to proceed. This is important here because one of those 1276 * debugfs files causes the firmware dump to be triggered, and if we 1277 * don't stop debugfs accesses before canceling that it could be 1278 * retriggered after we flush it but before we've cleared the bit. 1279 */ 1280 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1281 1282 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1283 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1284 1285 /* 1286 * The work item could be running or queued if the 1287 * ROC time event stops just as we get here. 1288 */ 1289 flush_work(&mvm->roc_done_wk); 1290 1291 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1292 1293 mutex_lock(&mvm->mutex); 1294 __iwl_mvm_mac_stop(mvm); 1295 mutex_unlock(&mvm->mutex); 1296 1297 /* 1298 * The worker might have been waiting for the mutex, let it run and 1299 * discover that its list is now empty. 1300 */ 1301 cancel_work_sync(&mvm->async_handlers_wk); 1302 } 1303 1304 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1305 { 1306 u16 i; 1307 1308 lockdep_assert_held(&mvm->mutex); 1309 1310 for (i = 0; i < NUM_PHY_CTX; i++) 1311 if (!mvm->phy_ctxts[i].ref) 1312 return &mvm->phy_ctxts[i]; 1313 1314 IWL_ERR(mvm, "No available PHY context\n"); 1315 return NULL; 1316 } 1317 1318 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1319 s16 tx_power) 1320 { 1321 u32 cmd_id = REDUCE_TX_POWER_CMD; 1322 int len; 1323 struct iwl_dev_tx_power_cmd cmd = { 1324 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1325 .common.mac_context_id = 1326 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1327 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1328 }; 1329 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1330 IWL_FW_CMD_VER_UNKNOWN); 1331 1332 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1333 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1334 1335 if (cmd_ver == 7) 1336 len = sizeof(cmd.v7); 1337 else if (cmd_ver == 6) 1338 len = sizeof(cmd.v6); 1339 else if (fw_has_api(&mvm->fw->ucode_capa, 1340 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1341 len = sizeof(cmd.v5); 1342 else if (fw_has_capa(&mvm->fw->ucode_capa, 1343 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1344 len = sizeof(cmd.v4); 1345 else 1346 len = sizeof(cmd.v3); 1347 1348 /* all structs have the same common part, add it */ 1349 len += sizeof(cmd.common); 1350 1351 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1352 } 1353 1354 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1355 struct ieee80211_vif *vif) 1356 { 1357 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1358 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1359 int ret; 1360 1361 mutex_lock(&mvm->mutex); 1362 1363 if (vif->type == NL80211_IFTYPE_STATION) { 1364 struct iwl_mvm_sta *mvmsta; 1365 1366 mvmvif->csa_bcn_pending = false; 1367 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1368 mvmvif->deflink.ap_sta_id); 1369 1370 if (WARN_ON(!mvmsta)) { 1371 ret = -EIO; 1372 goto out_unlock; 1373 } 1374 1375 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1376 if (mvm->mld_api_is_used) 1377 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1378 else 1379 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1380 1381 if (!fw_has_capa(&mvm->fw->ucode_capa, 1382 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1383 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1384 if (ret) 1385 goto out_unlock; 1386 1387 iwl_mvm_stop_session_protection(mvm, vif); 1388 } 1389 } 1390 1391 mvmvif->ps_disabled = false; 1392 1393 ret = iwl_mvm_power_update_ps(mvm); 1394 1395 out_unlock: 1396 if (mvmvif->csa_failed) 1397 ret = -EIO; 1398 mutex_unlock(&mvm->mutex); 1399 1400 return ret; 1401 } 1402 1403 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1404 struct ieee80211_vif *vif) 1405 { 1406 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1407 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1408 struct iwl_chan_switch_te_cmd cmd = { 1409 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1410 mvmvif->color)), 1411 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1412 }; 1413 1414 /* 1415 * In the new flow since FW is in charge of the timing, 1416 * if driver has canceled the channel switch he will receive the 1417 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1418 */ 1419 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1420 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1421 return; 1422 1423 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1424 1425 mutex_lock(&mvm->mutex); 1426 if (!fw_has_capa(&mvm->fw->ucode_capa, 1427 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1428 iwl_mvm_remove_csa_period(mvm, vif); 1429 else 1430 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1431 WIDE_ID(MAC_CONF_GROUP, 1432 CHANNEL_SWITCH_TIME_EVENT_CMD), 1433 0, sizeof(cmd), &cmd)); 1434 mvmvif->csa_failed = true; 1435 mutex_unlock(&mvm->mutex); 1436 1437 iwl_mvm_post_channel_switch(hw, vif); 1438 } 1439 1440 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1441 { 1442 struct iwl_mvm_vif *mvmvif; 1443 struct ieee80211_vif *vif; 1444 1445 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1446 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1447 1448 /* Trigger disconnect (should clear the CSA state) */ 1449 ieee80211_chswitch_done(vif, false); 1450 } 1451 1452 static u8 1453 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1454 { 1455 int data_start; 1456 int control_start; 1457 int bw; 1458 1459 if (chandef->width == NL80211_CHAN_WIDTH_320) 1460 bw = 320; 1461 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1462 bw = 160; 1463 else 1464 return 0; 1465 1466 /* data is bw wide so the start is half the width */ 1467 data_start = chandef->center_freq1 - bw / 2; 1468 /* control is 20Mhz width */ 1469 control_start = chandef->chan->center_freq - 10; 1470 1471 return (control_start - data_start) / 80; 1472 } 1473 1474 /* 1475 * Returns true if addding the interface is done 1476 * (either with success or failure) 1477 * 1478 * FIXME: remove this again and merge it in 1479 */ 1480 static bool iwl_mvm_mac_add_interface_common(struct iwl_mvm *mvm, 1481 struct ieee80211_hw *hw, 1482 struct ieee80211_vif *vif, 1483 int *ret) 1484 { 1485 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1486 1487 lockdep_assert_held(&mvm->mutex); 1488 1489 mvmvif->mvm = mvm; 1490 1491 /* the first link always points to the default one */ 1492 mvmvif->link[0] = &mvmvif->deflink; 1493 1494 /* 1495 * Not much to do here. The stack will not allow interface 1496 * types or combinations that we didn't advertise, so we 1497 * don't really have to check the types. 1498 */ 1499 1500 /* make sure that beacon statistics don't go backwards with FW reset */ 1501 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1502 mvmvif->deflink.beacon_stats.accu_num_beacons += 1503 mvmvif->deflink.beacon_stats.num_beacons; 1504 1505 /* Allocate resources for the MAC context, and add it to the fw */ 1506 *ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1507 if (*ret) 1508 return true; 1509 1510 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1511 1512 /* 1513 * The AP binding flow can be done only after the beacon 1514 * template is configured (which happens only in the mac80211 1515 * start_ap() flow), and adding the broadcast station can happen 1516 * only after the binding. 1517 * In addition, since modifying the MAC before adding a bcast 1518 * station is not allowed by the FW, delay the adding of MAC context to 1519 * the point where we can also add the bcast station. 1520 * In short: there's not much we can do at this point, other than 1521 * allocating resources :) 1522 */ 1523 if (vif->type == NL80211_IFTYPE_AP || 1524 vif->type == NL80211_IFTYPE_ADHOC) { 1525 iwl_mvm_vif_dbgfs_register(mvm, vif); 1526 return true; 1527 } 1528 1529 mvmvif->features |= hw->netdev_features; 1530 1531 return false; 1532 } 1533 1534 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1535 struct ieee80211_vif *vif) 1536 { 1537 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1538 int ret; 1539 1540 lockdep_assert_held(&mvm->mutex); 1541 1542 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1543 if (ret) { 1544 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1545 return ret; 1546 } 1547 1548 /* 1549 * Only queue for this station is the mcast queue, 1550 * which shouldn't be in TFD mask anyway 1551 */ 1552 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1553 vif->type, 1554 IWL_STA_MULTICAST); 1555 } 1556 1557 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1558 struct ieee80211_vif *vif) 1559 { 1560 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1561 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1562 int ret; 1563 1564 mutex_lock(&mvm->mutex); 1565 1566 /* Common for MLD and non-MLD API */ 1567 if (iwl_mvm_mac_add_interface_common(mvm, hw, vif, &ret)) 1568 goto out; 1569 1570 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1571 if (ret) 1572 goto out_unlock; 1573 1574 ret = iwl_mvm_power_update_mac(mvm); 1575 if (ret) 1576 goto out_remove_mac; 1577 1578 /* beacon filtering */ 1579 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1580 if (ret) 1581 goto out_remove_mac; 1582 1583 if (!mvm->bf_allowed_vif && 1584 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1585 mvm->bf_allowed_vif = mvmvif; 1586 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1587 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1588 } 1589 1590 /* 1591 * P2P_DEVICE interface does not have a channel context assigned to it, 1592 * so a dedicated PHY context is allocated to it and the corresponding 1593 * MAC context is bound to it at this stage. 1594 */ 1595 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1596 1597 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1598 if (!mvmvif->deflink.phy_ctxt) { 1599 ret = -ENOSPC; 1600 goto out_free_bf; 1601 } 1602 1603 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 1604 ret = iwl_mvm_binding_add_vif(mvm, vif); 1605 if (ret) 1606 goto out_unref_phy; 1607 1608 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1609 if (ret) 1610 goto out_unbind; 1611 1612 /* Save a pointer to p2p device vif, so it can later be used to 1613 * update the p2p device MAC when a GO is started/stopped */ 1614 mvm->p2p_device_vif = vif; 1615 } 1616 1617 iwl_mvm_tcm_add_vif(mvm, vif); 1618 INIT_DELAYED_WORK(&mvmvif->csa_work, 1619 iwl_mvm_channel_switch_disconnect_wk); 1620 1621 if (vif->type == NL80211_IFTYPE_MONITOR) { 1622 mvm->monitor_on = true; 1623 mvm->monitor_p80 = 1624 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1625 } 1626 1627 iwl_mvm_vif_dbgfs_register(mvm, vif); 1628 1629 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1630 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1631 !mvm->csme_vif && mvm->mei_registered) { 1632 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1633 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1634 mvm->csme_vif = vif; 1635 } 1636 1637 out: 1638 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1639 vif->type == NL80211_IFTYPE_ADHOC)) 1640 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1641 1642 goto out_unlock; 1643 1644 out_unbind: 1645 iwl_mvm_binding_remove_vif(mvm, vif); 1646 out_unref_phy: 1647 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1648 out_free_bf: 1649 if (mvm->bf_allowed_vif == mvmvif) { 1650 mvm->bf_allowed_vif = NULL; 1651 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1652 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1653 } 1654 out_remove_mac: 1655 mvmvif->deflink.phy_ctxt = NULL; 1656 iwl_mvm_mac_ctxt_remove(mvm, vif); 1657 out_unlock: 1658 mutex_unlock(&mvm->mutex); 1659 1660 return ret; 1661 } 1662 1663 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1664 struct ieee80211_vif *vif) 1665 { 1666 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1667 /* 1668 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1669 * We assume here that all the packets sent to the OFFCHANNEL 1670 * queue are sent in ROC session. 1671 */ 1672 flush_work(&mvm->roc_done_wk); 1673 } 1674 } 1675 1676 /* This function is doing the common part of removing the interface for 1677 * both - MLD and non-MLD modes. Returns true if removing the interface 1678 * is done 1679 */ 1680 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1681 struct ieee80211_vif *vif) 1682 { 1683 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1684 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1685 struct iwl_probe_resp_data *probe_data; 1686 1687 iwl_mvm_prepare_mac_removal(mvm, vif); 1688 1689 if (!(vif->type == NL80211_IFTYPE_AP || 1690 vif->type == NL80211_IFTYPE_ADHOC)) 1691 iwl_mvm_tcm_rm_vif(mvm, vif); 1692 1693 mutex_lock(&mvm->mutex); 1694 1695 if (vif == mvm->csme_vif) { 1696 iwl_mei_set_netdev(NULL); 1697 mvm->csme_vif = NULL; 1698 } 1699 1700 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1701 lockdep_is_held(&mvm->mutex)); 1702 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1703 if (probe_data) 1704 kfree_rcu(probe_data, rcu_head); 1705 1706 if (mvm->bf_allowed_vif == mvmvif) { 1707 mvm->bf_allowed_vif = NULL; 1708 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1709 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1710 } 1711 1712 if (vif->bss_conf.ftm_responder) 1713 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1714 1715 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1716 1717 /* 1718 * For AP/GO interface, the tear down of the resources allocated to the 1719 * interface is be handled as part of the stop_ap flow. 1720 */ 1721 if (vif->type == NL80211_IFTYPE_AP || 1722 vif->type == NL80211_IFTYPE_ADHOC) { 1723 #ifdef CONFIG_NL80211_TESTMODE 1724 if (vif == mvm->noa_vif) { 1725 mvm->noa_vif = NULL; 1726 mvm->noa_duration = 0; 1727 } 1728 #endif 1729 return true; 1730 } 1731 1732 iwl_mvm_power_update_mac(mvm); 1733 return false; 1734 } 1735 1736 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1737 struct ieee80211_vif *vif) 1738 { 1739 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1740 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1741 1742 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1743 goto out; 1744 1745 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1746 mvm->p2p_device_vif = NULL; 1747 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1748 iwl_mvm_binding_remove_vif(mvm, vif); 1749 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1750 mvmvif->deflink.phy_ctxt = NULL; 1751 } 1752 1753 iwl_mvm_mac_ctxt_remove(mvm, vif); 1754 1755 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1756 1757 if (vif->type == NL80211_IFTYPE_MONITOR) 1758 mvm->monitor_on = false; 1759 1760 out: 1761 if (vif->type == NL80211_IFTYPE_AP || 1762 vif->type == NL80211_IFTYPE_ADHOC) { 1763 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1764 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1765 } 1766 1767 mutex_unlock(&mvm->mutex); 1768 } 1769 1770 struct iwl_mvm_mc_iter_data { 1771 struct iwl_mvm *mvm; 1772 int port_id; 1773 }; 1774 1775 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1776 struct ieee80211_vif *vif) 1777 { 1778 struct iwl_mvm_mc_iter_data *data = _data; 1779 struct iwl_mvm *mvm = data->mvm; 1780 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1781 struct iwl_host_cmd hcmd = { 1782 .id = MCAST_FILTER_CMD, 1783 .flags = CMD_ASYNC, 1784 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1785 }; 1786 int ret, len; 1787 1788 /* if we don't have free ports, mcast frames will be dropped */ 1789 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1790 return; 1791 1792 if (vif->type != NL80211_IFTYPE_STATION || 1793 !vif->cfg.assoc) 1794 return; 1795 1796 cmd->port_id = data->port_id++; 1797 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1798 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1799 1800 hcmd.len[0] = len; 1801 hcmd.data[0] = cmd; 1802 1803 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1804 if (ret) 1805 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1806 } 1807 1808 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1809 { 1810 struct iwl_mvm_mc_iter_data iter_data = { 1811 .mvm = mvm, 1812 }; 1813 int ret; 1814 1815 lockdep_assert_held(&mvm->mutex); 1816 1817 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1818 return; 1819 1820 ieee80211_iterate_active_interfaces_atomic( 1821 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1822 iwl_mvm_mc_iface_iterator, &iter_data); 1823 1824 /* 1825 * Send a (synchronous) ech command so that we wait for the 1826 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1827 * the interface iterator. Otherwise, we might get here over 1828 * and over again (by userspace just sending a lot of these) 1829 * and the CPU can send them faster than the firmware can 1830 * process them. 1831 * Note that the CPU is still faster - but with this we'll 1832 * actually send fewer commands overall because the CPU will 1833 * not schedule the work in mac80211 as frequently if it's 1834 * still running when rescheduled (possibly multiple times). 1835 */ 1836 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1837 if (ret) 1838 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1839 } 1840 1841 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1842 struct netdev_hw_addr_list *mc_list) 1843 { 1844 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1845 struct iwl_mcast_filter_cmd *cmd; 1846 struct netdev_hw_addr *addr; 1847 int addr_count; 1848 bool pass_all; 1849 int len; 1850 1851 addr_count = netdev_hw_addr_list_count(mc_list); 1852 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1853 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1854 if (pass_all) 1855 addr_count = 0; 1856 1857 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1858 cmd = kzalloc(len, GFP_ATOMIC); 1859 if (!cmd) 1860 return 0; 1861 1862 if (pass_all) { 1863 cmd->pass_all = 1; 1864 return (u64)(unsigned long)cmd; 1865 } 1866 1867 netdev_hw_addr_list_for_each(addr, mc_list) { 1868 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1869 cmd->count, addr->addr); 1870 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1871 addr->addr, ETH_ALEN); 1872 cmd->count++; 1873 } 1874 1875 return (u64)(unsigned long)cmd; 1876 } 1877 1878 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1879 unsigned int changed_flags, 1880 unsigned int *total_flags, u64 multicast) 1881 { 1882 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1883 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1884 1885 mutex_lock(&mvm->mutex); 1886 1887 /* replace previous configuration */ 1888 kfree(mvm->mcast_filter_cmd); 1889 mvm->mcast_filter_cmd = cmd; 1890 1891 if (!cmd) 1892 goto out; 1893 1894 if (changed_flags & FIF_ALLMULTI) 1895 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1896 1897 if (cmd->pass_all) 1898 cmd->count = 0; 1899 1900 iwl_mvm_recalc_multicast(mvm); 1901 out: 1902 mutex_unlock(&mvm->mutex); 1903 *total_flags = 0; 1904 } 1905 1906 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1907 struct ieee80211_vif *vif, 1908 unsigned int filter_flags, 1909 unsigned int changed_flags) 1910 { 1911 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1912 1913 /* We support only filter for probe requests */ 1914 if (!(changed_flags & FIF_PROBE_REQ)) 1915 return; 1916 1917 /* Supported only for p2p client interfaces */ 1918 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1919 !vif->p2p) 1920 return; 1921 1922 mutex_lock(&mvm->mutex); 1923 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1924 mutex_unlock(&mvm->mutex); 1925 } 1926 1927 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1928 { 1929 struct iwl_mu_group_mgmt_cmd cmd = {}; 1930 1931 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1932 WLAN_MEMBERSHIP_LEN); 1933 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1934 WLAN_USER_POSITION_LEN); 1935 1936 return iwl_mvm_send_cmd_pdu(mvm, 1937 WIDE_ID(DATA_PATH_GROUP, 1938 UPDATE_MU_GROUPS_CMD), 1939 0, sizeof(cmd), &cmd); 1940 } 1941 1942 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1943 struct ieee80211_vif *vif) 1944 { 1945 if (vif->bss_conf.mu_mimo_owner) { 1946 struct iwl_mu_group_mgmt_notif *notif = _data; 1947 1948 /* 1949 * MU-MIMO Group Id action frame is little endian. We treat 1950 * the data received from firmware as if it came from the 1951 * action frame, so no conversion is needed. 1952 */ 1953 ieee80211_update_mu_groups(vif, 0, 1954 (u8 *)¬if->membership_status, 1955 (u8 *)¬if->user_position); 1956 } 1957 } 1958 1959 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1960 struct iwl_rx_cmd_buffer *rxb) 1961 { 1962 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1963 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1964 1965 ieee80211_iterate_active_interfaces_atomic( 1966 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1967 iwl_mvm_mu_mimo_iface_iterator, notif); 1968 } 1969 1970 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1971 { 1972 u8 byte_num = ppe_pos_bit / 8; 1973 u8 bit_num = ppe_pos_bit % 8; 1974 u8 residue_bits; 1975 u8 res; 1976 1977 if (bit_num <= 5) 1978 return (ppe[byte_num] >> bit_num) & 1979 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1980 1981 /* 1982 * If bit_num > 5, we have to combine bits with next byte. 1983 * Calculate how many bits we need to take from current byte (called 1984 * here "residue_bits"), and add them to bits from next byte. 1985 */ 1986 1987 residue_bits = 8 - bit_num; 1988 1989 res = (ppe[byte_num + 1] & 1990 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1991 residue_bits; 1992 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1993 1994 return res; 1995 } 1996 1997 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1998 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1999 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2000 bool inheritance) 2001 { 2002 int i; 2003 2004 /* 2005 * FW currently supports only nss == MAX_HE_SUPP_NSS 2006 * 2007 * If nss > MAX: we can ignore values we don't support 2008 * If nss < MAX: we can set zeros in other streams 2009 */ 2010 if (nss > MAX_HE_SUPP_NSS) { 2011 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2012 MAX_HE_SUPP_NSS); 2013 nss = MAX_HE_SUPP_NSS; 2014 } 2015 2016 for (i = 0; i < nss; i++) { 2017 u8 ru_index_tmp = ru_index_bitmap << 1; 2018 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2019 u8 bw; 2020 2021 for (bw = 0; 2022 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2023 bw++) { 2024 ru_index_tmp >>= 1; 2025 2026 /* 2027 * According to the 11be spec, if for a specific BW the PPE Thresholds 2028 * isn't present - it should inherit the thresholds from the last 2029 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2030 * this inheritance - continue in this case 2031 */ 2032 if (!(ru_index_tmp & 1)) { 2033 if (inheritance) 2034 goto set_thresholds; 2035 else 2036 continue; 2037 } 2038 2039 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2040 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2041 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2042 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2043 2044 set_thresholds: 2045 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2046 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2047 } 2048 } 2049 } 2050 2051 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2052 struct ieee80211_link_sta *link_sta, 2053 struct iwl_he_pkt_ext_v2 *pkt_ext, 2054 bool inheritance) 2055 { 2056 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2057 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2058 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2059 u8 ru_index_bitmap = 2060 u8_get_bits(*ppe, 2061 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2062 /* Starting after PPE header */ 2063 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2064 2065 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2066 inheritance); 2067 } 2068 2069 static int 2070 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2071 u8 nominal_padding) 2072 { 2073 int low_th = -1; 2074 int high_th = -1; 2075 int i; 2076 2077 /* all the macros are the same for EHT and HE */ 2078 switch (nominal_padding) { 2079 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2080 low_th = IWL_HE_PKT_EXT_NONE; 2081 high_th = IWL_HE_PKT_EXT_NONE; 2082 break; 2083 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2084 low_th = IWL_HE_PKT_EXT_BPSK; 2085 high_th = IWL_HE_PKT_EXT_NONE; 2086 break; 2087 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2088 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2089 low_th = IWL_HE_PKT_EXT_NONE; 2090 high_th = IWL_HE_PKT_EXT_BPSK; 2091 break; 2092 } 2093 2094 if (low_th < 0 || high_th < 0) 2095 return -EINVAL; 2096 2097 /* Set the PPE thresholds accordingly */ 2098 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2099 u8 bw; 2100 2101 for (bw = 0; 2102 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2103 bw++) { 2104 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2105 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2106 } 2107 } 2108 2109 return 0; 2110 } 2111 2112 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2113 u8 nominal_padding) 2114 { 2115 int i; 2116 2117 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2118 u8 bw; 2119 2120 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2121 bw++) { 2122 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2123 2124 if (nominal_padding > 2125 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2126 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2127 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2128 else if (nominal_padding == 2129 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2130 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2131 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2132 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2133 } 2134 } 2135 } 2136 2137 /* Set the pkt_ext field according to PPE Thresholds element */ 2138 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2139 struct ieee80211_link_sta *link_sta, 2140 struct iwl_he_pkt_ext_v2 *pkt_ext) 2141 { 2142 u8 nominal_padding; 2143 int i, ret = 0; 2144 2145 if (WARN_ON(!link_sta)) 2146 return -EINVAL; 2147 2148 /* Initialize the PPE thresholds to "None" (7), as described in Table 2149 * 9-262ac of 80211.ax/D3.0. 2150 */ 2151 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2152 sizeof(struct iwl_he_pkt_ext_v2)); 2153 2154 if (link_sta->eht_cap.has_eht) { 2155 nominal_padding = 2156 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2157 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2158 2159 /* If PPE Thresholds exists, parse them into a FW-familiar 2160 * format. 2161 */ 2162 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2163 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2164 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2165 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2166 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2167 u8 ru_index_bitmap = 2168 u16_get_bits(*ppe, 2169 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2170 /* Starting after PPE header */ 2171 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2172 2173 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2174 ppe, ppe_pos_bit, true); 2175 /* EHT PPE Thresholds doesn't exist - set the API according to 2176 * HE PPE Tresholds 2177 */ 2178 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2179 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2180 /* Even though HE Capabilities IE doesn't contain PPE 2181 * Thresholds for BW 320Mhz, thresholds for this BW will 2182 * be filled in with the same values as 160Mhz, due to 2183 * the inheritance, as required. 2184 */ 2185 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2186 true); 2187 2188 /* According to the requirements, for MCSs 12-13 the 2189 * maximum value between HE PPE Threshold and Common 2190 * Nominal Packet Padding needs to be taken 2191 */ 2192 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2193 2194 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2195 * take the Thresholds from Common Nominal Packet Padding field 2196 */ 2197 } else { 2198 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2199 nominal_padding); 2200 } 2201 } else if (link_sta->he_cap.has_he) { 2202 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2203 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2204 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2205 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2206 false); 2207 /* PPE Thresholds doesn't exist - set the API PPE values 2208 * according to Common Nominal Packet Padding field. 2209 */ 2210 } else { 2211 nominal_padding = 2212 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2213 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2214 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2215 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2216 nominal_padding); 2217 } 2218 } 2219 2220 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2221 int bw; 2222 2223 for (bw = 0; 2224 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2225 bw++) { 2226 u8 *qam_th = 2227 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2228 2229 IWL_DEBUG_HT(mvm, 2230 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2231 i, bw, qam_th[0], qam_th[1]); 2232 } 2233 } 2234 return ret; 2235 } 2236 2237 /* 2238 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2239 * is enabled or not 2240 */ 2241 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2242 struct iwl_mvm_vif *mvmvif, 2243 struct iwl_he_backoff_conf *trig_based_txf) 2244 { 2245 int i; 2246 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2247 bool mu_edca_enabled = true; 2248 2249 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2250 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2251 &mvmvif->deflink.queue_params[i].mu_edca_param_rec; 2252 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2253 2254 if (!mvmvif->deflink.queue_params[i].mu_edca) { 2255 mu_edca_enabled = false; 2256 break; 2257 } 2258 2259 trig_based_txf[ac].cwmin = 2260 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2261 trig_based_txf[ac].cwmax = 2262 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2263 trig_based_txf[ac].aifsn = 2264 cpu_to_le16(mu_edca->aifsn & 0xf); 2265 trig_based_txf[ac].mu_time = 2266 cpu_to_le16(mu_edca->mu_edca_timer); 2267 } 2268 2269 return mu_edca_enabled; 2270 } 2271 2272 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2273 { 2274 const struct ieee80211_supported_band *sband; 2275 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2276 2277 /* This capability is the same for all bands, 2278 * so take it from one of them. 2279 */ 2280 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2281 own_he_cap = ieee80211_get_he_iftype_cap(sband, 2282 ieee80211_vif_type_p2p(vif)); 2283 2284 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2285 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2286 } 2287 2288 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2289 struct ieee80211_link_sta *link_sta) 2290 { 2291 u8 *mac_cap_info = 2292 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2293 __le32 htc_flags = 0; 2294 2295 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2296 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2297 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2298 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2299 u8 link_adap = 2300 ((mac_cap_info[2] & 2301 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2302 (mac_cap_info[1] & 2303 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2304 2305 if (link_adap == 2) 2306 htc_flags |= 2307 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2308 else if (link_adap == 3) 2309 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2310 } 2311 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2312 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2313 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2314 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2315 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2316 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2317 2318 return htc_flags; 2319 } 2320 2321 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2322 struct ieee80211_vif *vif, u8 sta_id) 2323 { 2324 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2325 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2326 .sta_id = sta_id, 2327 .tid_limit = IWL_MAX_TID_COUNT, 2328 .bss_color = vif->bss_conf.he_bss_color.color, 2329 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2330 .frame_time_rts_th = 2331 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2332 }; 2333 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2334 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2335 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2336 int size; 2337 struct ieee80211_sta *sta; 2338 u32 flags; 2339 int i; 2340 void *cmd; 2341 2342 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2343 ver = 1; 2344 2345 switch (ver) { 2346 case 1: 2347 /* same layout as v2 except some data at the end */ 2348 cmd = &sta_ctxt_cmd_v2; 2349 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2350 break; 2351 case 2: 2352 cmd = &sta_ctxt_cmd_v2; 2353 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2354 break; 2355 case 3: 2356 cmd = &sta_ctxt_cmd; 2357 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2358 break; 2359 default: 2360 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2361 return; 2362 } 2363 2364 rcu_read_lock(); 2365 2366 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2367 if (IS_ERR_OR_NULL(sta)) { 2368 rcu_read_unlock(); 2369 WARN(1, "Can't find STA to configure HE\n"); 2370 return; 2371 } 2372 2373 if (!sta->deflink.he_cap.has_he) { 2374 rcu_read_unlock(); 2375 return; 2376 } 2377 2378 flags = 0; 2379 2380 /* Block 26-tone RU OFDMA transmissions */ 2381 if (mvmvif->deflink.he_ru_2mhz_block) 2382 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2383 2384 /* HTC flags */ 2385 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2386 2387 /* PPE Thresholds */ 2388 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2389 flags |= STA_CTXT_HE_PACKET_EXT; 2390 2391 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2392 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2393 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2394 2395 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2396 IEEE80211_HE_MAC_CAP2_ACK_EN) 2397 flags |= STA_CTXT_HE_ACK_ENABLED; 2398 2399 rcu_read_unlock(); 2400 2401 if (iwl_mvm_set_fw_mu_edca_params(mvm, mvmvif, 2402 &sta_ctxt_cmd.trig_based_txf[0])) 2403 flags |= STA_CTXT_HE_MU_EDCA_CW; 2404 2405 if (vif->bss_conf.uora_exists) { 2406 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2407 2408 sta_ctxt_cmd.rand_alloc_ecwmin = 2409 vif->bss_conf.uora_ocw_range & 0x7; 2410 sta_ctxt_cmd.rand_alloc_ecwmax = 2411 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2412 } 2413 2414 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2415 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2416 2417 if (vif->bss_conf.nontransmitted) { 2418 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2419 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2420 vif->bss_conf.transmitter_bssid); 2421 sta_ctxt_cmd.max_bssid_indicator = 2422 vif->bss_conf.bssid_indicator; 2423 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2424 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2425 sta_ctxt_cmd.profile_periodicity = 2426 vif->bss_conf.profile_periodicity; 2427 } 2428 2429 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2430 2431 if (ver < 3) { 2432 /* fields before pkt_ext */ 2433 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2434 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2435 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2436 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2437 2438 /* pkt_ext */ 2439 for (i = 0; 2440 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2441 i++) { 2442 u8 bw; 2443 2444 for (bw = 0; 2445 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2446 bw++) { 2447 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2448 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2449 2450 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2451 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2452 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2453 } 2454 } 2455 2456 /* fields after pkt_ext */ 2457 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2458 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2459 sizeof(sta_ctxt_cmd_v2) - 2460 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2461 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2462 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2463 (u8 *)&sta_ctxt_cmd + 2464 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2465 sizeof(sta_ctxt_cmd) - 2466 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2467 sta_ctxt_cmd_v2.reserved3 = 0; 2468 } 2469 2470 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2471 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2472 } 2473 2474 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2475 u32 duration_override) 2476 { 2477 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2478 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2479 2480 if (duration_override > duration) 2481 duration = duration_override; 2482 2483 /* Try really hard to protect the session and hear a beacon 2484 * The new session protection command allows us to protect the 2485 * session for a much longer time since the firmware will internally 2486 * create two events: a 300TU one with a very high priority that 2487 * won't be fragmented which should be enough for 99% of the cases, 2488 * and another one (which we configure here to be 900TU long) which 2489 * will have a slightly lower priority, but more importantly, can be 2490 * fragmented so that it'll allow other activities to run. 2491 */ 2492 if (fw_has_capa(&mvm->fw->ucode_capa, 2493 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2494 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2495 min_duration, false); 2496 else 2497 iwl_mvm_protect_session(mvm, vif, duration, 2498 min_duration, 500, false); 2499 } 2500 2501 /* Handle association common part to MLD and non-MLD modes */ 2502 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2503 struct ieee80211_vif *vif, 2504 u64 changes) 2505 { 2506 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2507 int ret; 2508 2509 /* The firmware tracks the MU-MIMO group on its own. 2510 * However, on HW restart we should restore this data. 2511 */ 2512 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2513 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2514 ret = iwl_mvm_update_mu_groups(mvm, vif); 2515 if (ret) 2516 IWL_ERR(mvm, 2517 "failed to update VHT MU_MIMO groups\n"); 2518 } 2519 2520 iwl_mvm_recalc_multicast(mvm); 2521 2522 /* reset rssi values */ 2523 mvmvif->bf_data.ave_beacon_signal = 0; 2524 2525 iwl_mvm_bt_coex_vif_change(mvm); 2526 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2527 IEEE80211_SMPS_AUTOMATIC); 2528 if (fw_has_capa(&mvm->fw->ucode_capa, 2529 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2530 iwl_mvm_config_scan(mvm); 2531 } 2532 2533 /* Execute the common part for MLD and non-MLD modes */ 2534 void 2535 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2536 struct ieee80211_vif *vif, 2537 struct ieee80211_bss_conf *link_conf, 2538 u64 changes) 2539 { 2540 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2541 int ret; 2542 2543 if (changes & BSS_CHANGED_BEACON_INFO) { 2544 /* We received a beacon from the associated AP so 2545 * remove the session protection. 2546 */ 2547 iwl_mvm_stop_session_protection(mvm, vif); 2548 2549 iwl_mvm_sf_update(mvm, vif, false); 2550 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2551 } 2552 2553 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2554 /* Send power command on every beacon change, 2555 * because we may have not enabled beacon abort yet. 2556 */ 2557 BSS_CHANGED_BEACON_INFO)) { 2558 ret = iwl_mvm_power_update_mac(mvm); 2559 if (ret) 2560 IWL_ERR(mvm, "failed to update power mode\n"); 2561 } 2562 2563 if (changes & BSS_CHANGED_CQM) { 2564 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2565 /* reset cqm events tracking */ 2566 mvmvif->bf_data.last_cqm_event = 0; 2567 if (mvmvif->bf_data.bf_enabled) { 2568 /* FIXME: need to update per link when FW API will 2569 * support it 2570 */ 2571 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2572 if (ret) 2573 IWL_ERR(mvm, 2574 "failed to update CQM thresholds\n"); 2575 } 2576 } 2577 2578 if (changes & BSS_CHANGED_BANDWIDTH) 2579 iwl_mvm_update_link_smps(vif, link_conf); 2580 } 2581 2582 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2583 struct ieee80211_vif *vif, 2584 struct ieee80211_bss_conf *bss_conf, 2585 u64 changes) 2586 { 2587 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2588 int ret; 2589 2590 /* 2591 * Re-calculate the tsf id, as the leader-follower relations depend 2592 * on the beacon interval, which was not known when the station 2593 * interface was added. 2594 */ 2595 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2596 if ((vif->bss_conf.he_support && 2597 !iwlwifi_mod_params.disable_11ax) || 2598 (vif->bss_conf.eht_support && 2599 !iwlwifi_mod_params.disable_11be)) 2600 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2601 2602 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2603 } 2604 2605 /* Update MU EDCA params */ 2606 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2607 vif->cfg.assoc && 2608 ((vif->bss_conf.he_support && 2609 !iwlwifi_mod_params.disable_11ax) || 2610 (vif->bss_conf.eht_support && 2611 !iwlwifi_mod_params.disable_11be))) 2612 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2613 2614 /* 2615 * If we're not associated yet, take the (new) BSSID before associating 2616 * so the firmware knows. If we're already associated, then use the old 2617 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2618 * branch for disassociation below. 2619 */ 2620 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2621 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2622 2623 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2624 if (ret) 2625 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2626 2627 /* after sending it once, adopt mac80211 data */ 2628 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2629 mvmvif->associated = vif->cfg.assoc; 2630 2631 if (changes & BSS_CHANGED_ASSOC) { 2632 if (vif->cfg.assoc) { 2633 /* clear statistics to get clean beacon counter */ 2634 iwl_mvm_request_statistics(mvm, true); 2635 memset(&mvmvif->deflink.beacon_stats, 0, 2636 sizeof(mvmvif->deflink.beacon_stats)); 2637 2638 /* add quota for this interface */ 2639 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2640 if (ret) { 2641 IWL_ERR(mvm, "failed to update quotas\n"); 2642 return; 2643 } 2644 2645 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2646 &mvm->status) && 2647 !fw_has_capa(&mvm->fw->ucode_capa, 2648 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2649 /* 2650 * If we're restarting then the firmware will 2651 * obviously have lost synchronisation with 2652 * the AP. It will attempt to synchronise by 2653 * itself, but we can make it more reliable by 2654 * scheduling a session protection time event. 2655 * 2656 * The firmware needs to receive a beacon to 2657 * catch up with synchronisation, use 110% of 2658 * the beacon interval. 2659 * 2660 * Set a large maximum delay to allow for more 2661 * than a single interface. 2662 * 2663 * For new firmware versions, rely on the 2664 * firmware. This is relevant for DCM scenarios 2665 * only anyway. 2666 */ 2667 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2668 iwl_mvm_protect_session(mvm, vif, dur, dur, 2669 5 * dur, false); 2670 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2671 &mvm->status) && 2672 !vif->bss_conf.dtim_period) { 2673 /* 2674 * If we're not restarting and still haven't 2675 * heard a beacon (dtim period unknown) then 2676 * make sure we still have enough minimum time 2677 * remaining in the time event, since the auth 2678 * might actually have taken quite a while 2679 * (especially for SAE) and so the remaining 2680 * time could be small without us having heard 2681 * a beacon yet. 2682 */ 2683 iwl_mvm_protect_assoc(mvm, vif, 0); 2684 } 2685 2686 iwl_mvm_sf_update(mvm, vif, false); 2687 iwl_mvm_power_vif_assoc(mvm, vif); 2688 if (vif->p2p) { 2689 iwl_mvm_update_smps(mvm, vif, 2690 IWL_MVM_SMPS_REQ_PROT, 2691 IEEE80211_SMPS_DYNAMIC, 0); 2692 } 2693 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2694 iwl_mvm_mei_host_disassociated(mvm); 2695 /* 2696 * If update fails - SF might be running in associated 2697 * mode while disassociated - which is forbidden. 2698 */ 2699 ret = iwl_mvm_sf_update(mvm, vif, false); 2700 WARN_ONCE(ret && 2701 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2702 &mvm->status), 2703 "Failed to update SF upon disassociation\n"); 2704 2705 /* 2706 * If we get an assert during the connection (after the 2707 * station has been added, but before the vif is set 2708 * to associated), mac80211 will re-add the station and 2709 * then configure the vif. Since the vif is not 2710 * associated, we would remove the station here and 2711 * this would fail the recovery. 2712 */ 2713 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2714 &mvm->status)) { 2715 /* first remove remaining keys */ 2716 iwl_mvm_sec_key_remove_ap(mvm, vif, 2717 &mvmvif->deflink, 0); 2718 2719 /* 2720 * Remove AP station now that 2721 * the MAC is unassoc 2722 */ 2723 ret = iwl_mvm_rm_sta_id(mvm, vif, 2724 mvmvif->deflink.ap_sta_id); 2725 if (ret) 2726 IWL_ERR(mvm, 2727 "failed to remove AP station\n"); 2728 2729 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2730 } 2731 2732 /* remove quota for this interface */ 2733 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2734 if (ret) 2735 IWL_ERR(mvm, "failed to update quotas\n"); 2736 2737 /* this will take the cleared BSSID from bss_conf */ 2738 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2739 if (ret) 2740 IWL_ERR(mvm, 2741 "failed to update MAC %pM (clear after unassoc)\n", 2742 vif->addr); 2743 } 2744 2745 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2746 } 2747 2748 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2749 changes); 2750 } 2751 2752 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2753 struct ieee80211_vif *vif, 2754 int *ret) 2755 { 2756 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2757 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2758 int i; 2759 2760 lockdep_assert_held(&mvm->mutex); 2761 2762 mvmvif->ap_assoc_sta_count = 0; 2763 2764 /* must be set before quota calculations */ 2765 mvmvif->ap_ibss_active = true; 2766 2767 /* send all the early keys to the device now */ 2768 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2769 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2770 2771 if (!key) 2772 continue; 2773 2774 mvmvif->ap_early_keys[i] = NULL; 2775 2776 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2777 if (*ret) 2778 return true; 2779 } 2780 2781 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2782 iwl_mvm_vif_set_low_latency(mvmvif, true, 2783 LOW_LATENCY_VIF_TYPE); 2784 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2785 } 2786 2787 /* power updated needs to be done before quotas */ 2788 iwl_mvm_power_update_mac(mvm); 2789 2790 return false; 2791 } 2792 2793 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2794 struct ieee80211_vif *vif, 2795 struct ieee80211_bss_conf *link_conf) 2796 { 2797 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2798 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2799 int ret; 2800 2801 mutex_lock(&mvm->mutex); 2802 2803 /* 2804 * Re-calculate the tsf id, as the leader-follower relations depend on 2805 * the beacon interval, which was not known when the AP interface 2806 * was added. 2807 */ 2808 if (vif->type == NL80211_IFTYPE_AP) 2809 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2810 2811 /* For older devices need to send beacon template before adding mac 2812 * context. For the newer, the beacon is a resource that belongs to a 2813 * MAC, so need to send beacon template after adding the mac. 2814 */ 2815 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2816 /* Add the mac context */ 2817 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2818 if (ret) 2819 goto out_unlock; 2820 2821 /* Send the beacon template */ 2822 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2823 if (ret) 2824 goto out_unlock; 2825 } else { 2826 /* Send the beacon template */ 2827 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2828 if (ret) 2829 goto out_unlock; 2830 2831 /* Add the mac context */ 2832 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2833 if (ret) 2834 goto out_unlock; 2835 } 2836 2837 /* Perform the binding */ 2838 ret = iwl_mvm_binding_add_vif(mvm, vif); 2839 if (ret) 2840 goto out_remove; 2841 2842 /* 2843 * This is not very nice, but the simplest: 2844 * For older FWs adding the mcast sta before the bcast station may 2845 * cause assert 0x2b00. 2846 * This is fixed in later FW so make the order of removal depend on 2847 * the TLV 2848 */ 2849 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2850 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2851 if (ret) 2852 goto out_unbind; 2853 /* 2854 * Send the bcast station. At this stage the TBTT and DTIM time 2855 * events are added and applied to the scheduler 2856 */ 2857 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2858 if (ret) { 2859 iwl_mvm_rm_mcast_sta(mvm, vif); 2860 goto out_unbind; 2861 } 2862 } else { 2863 /* 2864 * Send the bcast station. At this stage the TBTT and DTIM time 2865 * events are added and applied to the scheduler 2866 */ 2867 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2868 if (ret) 2869 goto out_unbind; 2870 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2871 if (ret) { 2872 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2873 goto out_unbind; 2874 } 2875 } 2876 2877 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2878 goto out_failed; 2879 2880 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2881 if (ret) 2882 goto out_failed; 2883 2884 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2885 if (vif->p2p && mvm->p2p_device_vif) 2886 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2887 2888 iwl_mvm_bt_coex_vif_change(mvm); 2889 2890 /* we don't support TDLS during DCM */ 2891 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2892 iwl_mvm_teardown_tdls_peers(mvm); 2893 2894 iwl_mvm_ftm_restart_responder(mvm, vif); 2895 2896 goto out_unlock; 2897 2898 out_failed: 2899 iwl_mvm_power_update_mac(mvm); 2900 mvmvif->ap_ibss_active = false; 2901 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2902 iwl_mvm_rm_mcast_sta(mvm, vif); 2903 out_unbind: 2904 iwl_mvm_binding_remove_vif(mvm, vif); 2905 out_remove: 2906 iwl_mvm_mac_ctxt_remove(mvm, vif); 2907 out_unlock: 2908 mutex_unlock(&mvm->mutex); 2909 return ret; 2910 } 2911 2912 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2913 struct ieee80211_vif *vif, 2914 struct ieee80211_bss_conf *link_conf) 2915 { 2916 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2917 } 2918 2919 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2920 struct ieee80211_vif *vif) 2921 { 2922 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2923 } 2924 2925 /* Common part for MLD and non-MLD ops */ 2926 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2927 struct ieee80211_vif *vif) 2928 { 2929 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2930 2931 lockdep_assert_held(&mvm->mutex); 2932 2933 iwl_mvm_prepare_mac_removal(mvm, vif); 2934 2935 /* Handle AP stop while in CSA */ 2936 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2937 iwl_mvm_remove_time_event(mvm, mvmvif, 2938 &mvmvif->time_event_data); 2939 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2940 mvmvif->csa_countdown = false; 2941 } 2942 2943 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2944 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2945 mvm->csa_tx_block_bcn_timeout = 0; 2946 } 2947 2948 mvmvif->ap_ibss_active = false; 2949 mvm->ap_last_beacon_gp2 = 0; 2950 2951 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2952 iwl_mvm_vif_set_low_latency(mvmvif, false, 2953 LOW_LATENCY_VIF_TYPE); 2954 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2955 } 2956 2957 iwl_mvm_bt_coex_vif_change(mvm); 2958 } 2959 2960 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2961 struct ieee80211_vif *vif, 2962 struct ieee80211_bss_conf *link_conf) 2963 { 2964 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2965 2966 mutex_lock(&mvm->mutex); 2967 2968 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2969 2970 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2971 if (vif->p2p && mvm->p2p_device_vif) 2972 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2973 2974 iwl_mvm_update_quotas(mvm, false, NULL); 2975 2976 iwl_mvm_ftm_responder_clear(mvm, vif); 2977 2978 /* 2979 * This is not very nice, but the simplest: 2980 * For older FWs removing the mcast sta before the bcast station may 2981 * cause assert 0x2b00. 2982 * This is fixed in later FW (which will stop beaconing when removing 2983 * bcast station). 2984 * So make the order of removal depend on the TLV 2985 */ 2986 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2987 iwl_mvm_rm_mcast_sta(mvm, vif); 2988 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2989 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2990 iwl_mvm_rm_mcast_sta(mvm, vif); 2991 iwl_mvm_binding_remove_vif(mvm, vif); 2992 2993 iwl_mvm_power_update_mac(mvm); 2994 2995 iwl_mvm_mac_ctxt_remove(mvm, vif); 2996 2997 mutex_unlock(&mvm->mutex); 2998 } 2999 3000 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3001 struct ieee80211_vif *vif, 3002 struct ieee80211_bss_conf *link_conf) 3003 { 3004 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3005 } 3006 3007 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3008 struct ieee80211_vif *vif) 3009 { 3010 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3011 } 3012 3013 static void 3014 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3015 struct ieee80211_vif *vif, 3016 struct ieee80211_bss_conf *bss_conf, 3017 u64 changes) 3018 { 3019 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3020 3021 /* Changes will be applied when the AP/IBSS is started */ 3022 if (!mvmvif->ap_ibss_active) 3023 return; 3024 3025 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3026 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3027 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3028 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3029 3030 /* Need to send a new beacon template to the FW */ 3031 if (changes & BSS_CHANGED_BEACON && 3032 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3033 IWL_WARN(mvm, "Failed updating beacon data\n"); 3034 3035 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3036 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 3037 3038 if (ret) 3039 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3040 ret); 3041 } 3042 3043 } 3044 3045 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3046 struct ieee80211_vif *vif, 3047 struct ieee80211_bss_conf *bss_conf, 3048 u64 changes) 3049 { 3050 struct iwl_mvm_bss_info_changed_ops callbacks = { 3051 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3052 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3053 }; 3054 3055 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3056 changes); 3057 } 3058 3059 void 3060 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3061 struct ieee80211_vif *vif, 3062 struct ieee80211_bss_conf *bss_conf, 3063 struct iwl_mvm_bss_info_changed_ops *callbacks, 3064 u64 changes) 3065 { 3066 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3067 3068 mutex_lock(&mvm->mutex); 3069 3070 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3071 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3072 3073 switch (vif->type) { 3074 case NL80211_IFTYPE_STATION: 3075 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3076 break; 3077 case NL80211_IFTYPE_AP: 3078 case NL80211_IFTYPE_ADHOC: 3079 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3080 changes); 3081 break; 3082 case NL80211_IFTYPE_MONITOR: 3083 if (changes & BSS_CHANGED_MU_GROUPS) 3084 iwl_mvm_update_mu_groups(mvm, vif); 3085 break; 3086 default: 3087 /* shouldn't happen */ 3088 WARN_ON_ONCE(1); 3089 } 3090 3091 if (changes & BSS_CHANGED_TXPOWER) { 3092 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3093 bss_conf->txpower); 3094 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3095 } 3096 3097 mutex_unlock(&mvm->mutex); 3098 } 3099 3100 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3101 struct ieee80211_scan_request *hw_req) 3102 { 3103 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3104 int ret; 3105 3106 if (hw_req->req.n_channels == 0 || 3107 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3108 return -EINVAL; 3109 3110 mutex_lock(&mvm->mutex); 3111 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3112 mutex_unlock(&mvm->mutex); 3113 3114 return ret; 3115 } 3116 3117 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3118 struct ieee80211_vif *vif) 3119 { 3120 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3121 3122 mutex_lock(&mvm->mutex); 3123 3124 /* Due to a race condition, it's possible that mac80211 asks 3125 * us to stop a hw_scan when it's already stopped. This can 3126 * happen, for instance, if we stopped the scan ourselves, 3127 * called ieee80211_scan_completed() and the userspace called 3128 * cancel scan scan before ieee80211_scan_work() could run. 3129 * To handle that, simply return if the scan is not running. 3130 */ 3131 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3132 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3133 3134 mutex_unlock(&mvm->mutex); 3135 } 3136 3137 void 3138 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3139 struct ieee80211_sta *sta, u16 tids, 3140 int num_frames, 3141 enum ieee80211_frame_release_type reason, 3142 bool more_data) 3143 { 3144 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3145 3146 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3147 3148 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3149 tids, more_data, false); 3150 } 3151 3152 void 3153 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3154 struct ieee80211_sta *sta, u16 tids, 3155 int num_frames, 3156 enum ieee80211_frame_release_type reason, 3157 bool more_data) 3158 { 3159 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3160 3161 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3162 3163 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3164 tids, more_data, true); 3165 } 3166 3167 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3168 enum sta_notify_cmd cmd, 3169 struct ieee80211_sta *sta) 3170 { 3171 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3172 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3173 unsigned long txqs = 0, tids = 0; 3174 int tid; 3175 3176 /* 3177 * If we have TVQM then we get too high queue numbers - luckily 3178 * we really shouldn't get here with that because such hardware 3179 * should have firmware supporting buffer station offload. 3180 */ 3181 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3182 return; 3183 3184 spin_lock_bh(&mvmsta->lock); 3185 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3186 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3187 3188 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3189 continue; 3190 3191 __set_bit(tid_data->txq_id, &txqs); 3192 3193 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3194 continue; 3195 3196 __set_bit(tid, &tids); 3197 } 3198 3199 switch (cmd) { 3200 case STA_NOTIFY_SLEEP: 3201 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3202 ieee80211_sta_set_buffered(sta, tid, true); 3203 3204 if (txqs) 3205 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3206 /* 3207 * The fw updates the STA to be asleep. Tx packets on the Tx 3208 * queues to this station will not be transmitted. The fw will 3209 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3210 */ 3211 break; 3212 case STA_NOTIFY_AWAKE: 3213 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3214 break; 3215 3216 if (txqs) 3217 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3218 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3219 break; 3220 default: 3221 break; 3222 } 3223 spin_unlock_bh(&mvmsta->lock); 3224 } 3225 3226 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3227 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3228 { 3229 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3230 } 3231 3232 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3233 { 3234 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3235 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3236 struct ieee80211_sta *sta; 3237 struct iwl_mvm_sta *mvmsta; 3238 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3239 3240 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3241 return; 3242 3243 rcu_read_lock(); 3244 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3245 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3246 rcu_read_unlock(); 3247 return; 3248 } 3249 3250 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3251 3252 if (!mvmsta->vif || 3253 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3254 rcu_read_unlock(); 3255 return; 3256 } 3257 3258 if (mvmsta->sleeping != sleeping) { 3259 mvmsta->sleeping = sleeping; 3260 __iwl_mvm_mac_sta_notify(mvm->hw, 3261 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3262 sta); 3263 ieee80211_sta_ps_transition(sta, sleeping); 3264 } 3265 3266 if (sleeping) { 3267 switch (notif->type) { 3268 case IWL_MVM_PM_EVENT_AWAKE: 3269 case IWL_MVM_PM_EVENT_ASLEEP: 3270 break; 3271 case IWL_MVM_PM_EVENT_UAPSD: 3272 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3273 break; 3274 case IWL_MVM_PM_EVENT_PS_POLL: 3275 ieee80211_sta_pspoll(sta); 3276 break; 3277 default: 3278 break; 3279 } 3280 } 3281 3282 rcu_read_unlock(); 3283 } 3284 3285 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3286 struct ieee80211_vif *vif, 3287 struct ieee80211_sta *sta) 3288 { 3289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3290 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3291 unsigned int link_id; 3292 3293 /* 3294 * This is called before mac80211 does RCU synchronisation, 3295 * so here we already invalidate our internal RCU-protected 3296 * station pointer. The rest of the code will thus no longer 3297 * be able to find the station this way, and we don't rely 3298 * on further RCU synchronisation after the sta_state() 3299 * callback deleted the station. 3300 * Since there's mvm->mutex here, no need to have RCU lock for 3301 * mvm_sta->link access. 3302 */ 3303 mutex_lock(&mvm->mutex); 3304 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3305 struct iwl_mvm_link_sta *link_sta; 3306 u32 sta_id; 3307 3308 if (!mvm_sta->link[link_id]) 3309 continue; 3310 3311 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3312 lockdep_is_held(&mvm->mutex)); 3313 sta_id = link_sta->sta_id; 3314 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3315 rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], 3316 ERR_PTR(-ENOENT)); 3317 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3318 } 3319 } 3320 mutex_unlock(&mvm->mutex); 3321 } 3322 3323 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3324 const u8 *bssid) 3325 { 3326 int i; 3327 3328 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3329 struct iwl_mvm_tcm_mac *mdata; 3330 3331 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3332 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3333 mdata->opened_rx_ba_sessions = false; 3334 } 3335 3336 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3337 return; 3338 3339 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3340 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3341 return; 3342 } 3343 3344 if (!vif->p2p && 3345 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3346 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3347 return; 3348 } 3349 3350 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3351 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3352 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3353 return; 3354 } 3355 } 3356 3357 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3358 } 3359 3360 static void 3361 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3362 struct ieee80211_vif *vif, u8 *peer_addr, 3363 enum nl80211_tdls_operation action) 3364 { 3365 struct iwl_fw_dbg_trigger_tlv *trig; 3366 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3367 3368 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3369 FW_DBG_TRIGGER_TDLS); 3370 if (!trig) 3371 return; 3372 3373 tdls_trig = (void *)trig->data; 3374 3375 if (!(tdls_trig->action_bitmap & BIT(action))) 3376 return; 3377 3378 if (tdls_trig->peer_mode && 3379 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3380 return; 3381 3382 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3383 "TDLS event occurred, peer %pM, action %d", 3384 peer_addr, action); 3385 } 3386 3387 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3388 bool tolerated; 3389 }; 3390 3391 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3392 struct cfg80211_bss *bss, 3393 void *_data) 3394 { 3395 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3396 const struct cfg80211_bss_ies *ies; 3397 const struct element *elem; 3398 3399 rcu_read_lock(); 3400 ies = rcu_dereference(bss->ies); 3401 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3402 ies->len); 3403 3404 if (!elem || elem->datalen < 10 || 3405 !(elem->data[10] & 3406 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3407 data->tolerated = false; 3408 } 3409 rcu_read_unlock(); 3410 } 3411 3412 static void 3413 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3414 struct ieee80211_vif *vif, 3415 unsigned int link_id, 3416 struct ieee80211_bss_conf *link_conf) 3417 { 3418 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3419 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3420 .tolerated = true, 3421 }; 3422 3423 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3424 !mvmvif->link[link_id])) 3425 return; 3426 3427 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3428 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3429 return; 3430 } 3431 3432 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3433 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3434 &iter_data); 3435 3436 /* 3437 * If there is at least one AP on radar channel that cannot 3438 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3439 */ 3440 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3441 } 3442 3443 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3444 struct ieee80211_vif *vif) 3445 { 3446 struct ieee80211_supported_band *sband; 3447 const struct ieee80211_sta_he_cap *he_cap; 3448 3449 if (vif->type != NL80211_IFTYPE_STATION) 3450 return; 3451 3452 if (!mvm->cca_40mhz_workaround) 3453 return; 3454 3455 /* decrement and check that we reached zero */ 3456 mvm->cca_40mhz_workaround--; 3457 if (mvm->cca_40mhz_workaround) 3458 return; 3459 3460 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3461 3462 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3463 3464 he_cap = ieee80211_get_he_iftype_cap(sband, 3465 ieee80211_vif_type_p2p(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 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 bool update) 3580 { 3581 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3582 unsigned int link_id; 3583 3584 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3585 struct ieee80211_bss_conf *conf = 3586 link_conf_dereference_protected(vif, link_id); 3587 struct ieee80211_link_sta *link_sta = 3588 link_sta_dereference_protected(sta, link_id); 3589 3590 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3591 continue; 3592 3593 iwl_mvm_rs_rate_init(mvm, sta, conf, link_sta, 3594 mvmvif->link[link_id]->phy_ctxt->channel->band, 3595 update); 3596 } 3597 } 3598 3599 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3600 3601 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3602 struct ieee80211_vif *vif, 3603 struct ieee80211_sta *sta) 3604 { 3605 unsigned int i; 3606 3607 /* Beacon interval check - firmware will crash if the beacon 3608 * interval is less than 16. We can't avoid connecting at all, 3609 * so refuse the station state change, this will cause mac80211 3610 * to abandon attempts to connect to this AP, and eventually 3611 * wpa_s will blocklist the AP... 3612 */ 3613 3614 for_each_set_bit(i, (unsigned long *)&sta->valid_links, 3615 IEEE80211_MLD_MAX_NUM_LINKS) { 3616 struct ieee80211_link_sta *link_sta = 3617 link_sta_dereference_protected(sta, i); 3618 struct ieee80211_bss_conf *link_conf = 3619 link_conf_dereference_protected(vif, i); 3620 3621 if (!link_conf || !link_sta) 3622 continue; 3623 3624 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3625 IWL_ERR(mvm, 3626 "Beacon interval %d for AP %pM is too small\n", 3627 link_conf->beacon_int, link_sta->addr); 3628 return false; 3629 } 3630 3631 link_conf->he_support = link_sta->he_cap.has_he; 3632 } 3633 3634 return true; 3635 } 3636 3637 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3638 struct ieee80211_vif *vif, 3639 struct ieee80211_sta *sta, 3640 bool is_sta) 3641 { 3642 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3643 unsigned int i; 3644 3645 for_each_set_bit(i, (unsigned long *)&sta->valid_links, 3646 IEEE80211_MLD_MAX_NUM_LINKS) { 3647 struct ieee80211_link_sta *link_sta = 3648 link_sta_dereference_protected(sta, i); 3649 struct ieee80211_bss_conf *link_conf = 3650 link_conf_dereference_protected(vif, i); 3651 3652 if (!link_conf || !link_sta || !mvmvif->link[i]) 3653 continue; 3654 3655 link_conf->he_support = link_sta->he_cap.has_he; 3656 3657 if (is_sta) { 3658 mvmvif->link[i]->he_ru_2mhz_block = false; 3659 if (link_sta->he_cap.has_he) 3660 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, i, 3661 link_conf); 3662 } 3663 } 3664 } 3665 3666 static int 3667 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3668 struct ieee80211_vif *vif, 3669 struct ieee80211_sta *sta, 3670 struct iwl_mvm_sta_state_ops *callbacks) 3671 { 3672 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3673 unsigned int i; 3674 int ret; 3675 3676 lockdep_assert_held(&mvm->mutex); 3677 3678 if (vif->type == NL80211_IFTYPE_STATION && 3679 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3680 return -EINVAL; 3681 3682 if (sta->tdls && 3683 (vif->p2p || 3684 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3685 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3686 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3687 return -EBUSY; 3688 } 3689 3690 ret = callbacks->add_sta(mvm, vif, sta); 3691 if (sta->tdls && ret == 0) { 3692 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3693 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3694 NL80211_TDLS_SETUP); 3695 } 3696 3697 for (i = 0; i < ARRAY_SIZE(sta->link); i++) { 3698 struct ieee80211_link_sta *link_sta; 3699 3700 link_sta = link_sta_dereference_protected(sta, i); 3701 if (!link_sta) 3702 continue; 3703 3704 link_sta->agg.max_rc_amsdu_len = 1; 3705 } 3706 ieee80211_sta_recalc_aggregates(sta); 3707 3708 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3709 mvmvif->ap_sta = sta; 3710 3711 return 0; 3712 } 3713 3714 static int 3715 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3716 struct iwl_mvm *mvm, 3717 struct ieee80211_vif *vif, 3718 struct ieee80211_sta *sta, 3719 struct iwl_mvm_sta_state_ops *callbacks) 3720 { 3721 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3722 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3723 unsigned int i; 3724 3725 lockdep_assert_held(&mvm->mutex); 3726 3727 if (vif->type == NL80211_IFTYPE_AP) { 3728 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3729 mvmvif->ap_assoc_sta_count++; 3730 callbacks->mac_ctxt_changed(mvm, vif, false); 3731 3732 /* since the below is not for MLD API, it's ok to use 3733 * the default bss_conf 3734 */ 3735 if (!mvm->mld_api_is_used && 3736 ((vif->bss_conf.he_support && 3737 !iwlwifi_mod_params.disable_11ax) || 3738 (vif->bss_conf.eht_support && 3739 !iwlwifi_mod_params.disable_11be))) 3740 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3741 } else if (vif->type == NL80211_IFTYPE_STATION) { 3742 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3743 3744 callbacks->mac_ctxt_changed(mvm, vif, false); 3745 3746 if (!mvm->mld_api_is_used) 3747 goto out; 3748 3749 for_each_set_bit(i, (unsigned long *)&sta->valid_links, 3750 IEEE80211_MLD_MAX_NUM_LINKS) { 3751 struct ieee80211_bss_conf *link_conf = 3752 link_conf_dereference_protected(vif, i); 3753 3754 if (WARN_ON(!link_conf)) 3755 return -EINVAL; 3756 if (!mvmvif->link[i]) 3757 continue; 3758 3759 iwl_mvm_link_changed(mvm, vif, link_conf, 3760 LINK_CONTEXT_MODIFY_ALL & 3761 ~LINK_CONTEXT_MODIFY_ACTIVE, 3762 true); 3763 } 3764 } 3765 3766 out: 3767 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta, false); 3768 3769 return callbacks->update_sta(mvm, vif, sta); 3770 } 3771 3772 static int 3773 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3774 struct ieee80211_vif *vif, 3775 struct ieee80211_sta *sta, 3776 struct iwl_mvm_sta_state_ops *callbacks) 3777 { 3778 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3779 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3780 3781 lockdep_assert_held(&mvm->mutex); 3782 3783 /* we don't support TDLS during DCM */ 3784 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3785 iwl_mvm_teardown_tdls_peers(mvm); 3786 3787 if (sta->tdls) { 3788 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3789 NL80211_TDLS_ENABLE_LINK); 3790 } else { 3791 /* enable beacon filtering */ 3792 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3793 3794 mvmvif->authorized = 1; 3795 3796 callbacks->mac_ctxt_changed(mvm, vif, false); 3797 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3798 } 3799 3800 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta, true); 3801 3802 return 0; 3803 } 3804 3805 static int 3806 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3807 struct ieee80211_vif *vif, 3808 struct ieee80211_sta *sta, 3809 struct iwl_mvm_sta_state_ops *callbacks) 3810 { 3811 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3812 int ret; 3813 3814 lockdep_assert_held(&mvm->mutex); 3815 3816 /* once we move into assoc state, need to update rate scale to 3817 * disable using wide bandwidth 3818 */ 3819 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta, false); 3820 3821 if (!sta->tdls) { 3822 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3823 * yet to avoid sending high prio again for a little 3824 * time. 3825 */ 3826 mvmvif->authorized = 0; 3827 3828 /* disable beacon filtering */ 3829 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3830 WARN_ON(ret && 3831 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3832 &mvm->status)); 3833 } 3834 3835 return 0; 3836 } 3837 3838 /* Common part for MLD and non-MLD modes */ 3839 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3840 struct ieee80211_vif *vif, 3841 struct ieee80211_sta *sta, 3842 enum ieee80211_sta_state old_state, 3843 enum ieee80211_sta_state new_state, 3844 struct iwl_mvm_sta_state_ops *callbacks) 3845 { 3846 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3847 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3848 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3849 unsigned int link_id; 3850 int ret; 3851 3852 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3853 sta->addr, old_state, new_state); 3854 3855 /* 3856 * If we are in a STA removal flow and in DQA mode: 3857 * 3858 * This is after the sync_rcu part, so the queues have already been 3859 * flushed. No more TXs on their way in mac80211's path, and no more in 3860 * the queues. 3861 * Also, we won't be getting any new TX frames for this station. 3862 * What we might have are deferred TX frames that need to be taken care 3863 * of. 3864 * 3865 * Drop any still-queued deferred-frame before removing the STA, and 3866 * make sure the worker is no longer handling frames for this STA. 3867 */ 3868 if (old_state == IEEE80211_STA_NONE && 3869 new_state == IEEE80211_STA_NOTEXIST) { 3870 flush_work(&mvm->add_stream_wk); 3871 3872 /* 3873 * No need to make sure deferred TX indication is off since the 3874 * worker will already remove it if it was on 3875 */ 3876 3877 /* 3878 * Additionally, reset the 40 MHz capability if we disconnected 3879 * from the AP now. 3880 */ 3881 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3882 } 3883 3884 mutex_lock(&mvm->mutex); 3885 3886 /* this would be a mac80211 bug ... but don't crash */ 3887 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3888 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3889 mutex_unlock(&mvm->mutex); 3890 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3891 &mvm->status) ? 0 : -EINVAL; 3892 } 3893 } 3894 3895 /* track whether or not the station is associated */ 3896 mvm_sta->sta_state = new_state; 3897 3898 if (old_state == IEEE80211_STA_NOTEXIST && 3899 new_state == IEEE80211_STA_NONE) { 3900 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3901 callbacks); 3902 if (ret < 0) 3903 goto out_unlock; 3904 } else if (old_state == IEEE80211_STA_NONE && 3905 new_state == IEEE80211_STA_AUTH) { 3906 /* 3907 * EBS may be disabled due to previous failures reported by FW. 3908 * Reset EBS status here assuming environment has been changed. 3909 */ 3910 mvm->last_ebs_successful = true; 3911 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3912 ret = 0; 3913 } else if (old_state == IEEE80211_STA_AUTH && 3914 new_state == IEEE80211_STA_ASSOC) { 3915 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3916 callbacks); 3917 } else if (old_state == IEEE80211_STA_ASSOC && 3918 new_state == IEEE80211_STA_AUTHORIZED) { 3919 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3920 callbacks); 3921 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3922 new_state == IEEE80211_STA_ASSOC) { 3923 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3924 callbacks); 3925 } else if (old_state == IEEE80211_STA_ASSOC && 3926 new_state == IEEE80211_STA_AUTH) { 3927 if (vif->type == NL80211_IFTYPE_AP) { 3928 mvmvif->ap_assoc_sta_count--; 3929 callbacks->mac_ctxt_changed(mvm, vif, false); 3930 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3931 iwl_mvm_stop_session_protection(mvm, vif); 3932 ret = 0; 3933 } else if (old_state == IEEE80211_STA_AUTH && 3934 new_state == IEEE80211_STA_NONE) { 3935 ret = 0; 3936 } else if (old_state == IEEE80211_STA_NONE && 3937 new_state == IEEE80211_STA_NOTEXIST) { 3938 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3939 iwl_mvm_stop_session_protection(mvm, vif); 3940 mvmvif->ap_sta = NULL; 3941 } 3942 ret = callbacks->rm_sta(mvm, vif, sta); 3943 if (sta->tdls) { 3944 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3945 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3946 NL80211_TDLS_DISABLE_LINK); 3947 } 3948 3949 if (unlikely(ret && 3950 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3951 &mvm->status))) 3952 ret = 0; 3953 } else { 3954 ret = -EIO; 3955 } 3956 out_unlock: 3957 mutex_unlock(&mvm->mutex); 3958 3959 if (sta->tdls && ret == 0) { 3960 if (old_state == IEEE80211_STA_NOTEXIST && 3961 new_state == IEEE80211_STA_NONE) 3962 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3963 else if (old_state == IEEE80211_STA_NONE && 3964 new_state == IEEE80211_STA_NOTEXIST) 3965 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3966 } 3967 3968 return ret; 3969 } 3970 3971 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3972 { 3973 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3974 3975 mvm->rts_threshold = value; 3976 3977 return 0; 3978 } 3979 3980 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3981 struct ieee80211_sta *sta, u32 changed) 3982 { 3983 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3984 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3985 3986 if (changed & (IEEE80211_RC_BW_CHANGED | 3987 IEEE80211_RC_SUPP_RATES_CHANGED | 3988 IEEE80211_RC_NSS_CHANGED)) 3989 iwl_mvm_rs_rate_init(mvm, sta, 3990 &vif->bss_conf, &sta->deflink, 3991 mvmvif->deflink.phy_ctxt->channel->band, 3992 true); 3993 3994 if (vif->type == NL80211_IFTYPE_STATION && 3995 changed & IEEE80211_RC_NSS_CHANGED) 3996 iwl_mvm_sf_update(mvm, vif, false); 3997 } 3998 3999 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4000 struct ieee80211_vif *vif, 4001 unsigned int link_id, u16 ac, 4002 const struct ieee80211_tx_queue_params *params) 4003 { 4004 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4005 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4006 4007 mvmvif->deflink.queue_params[ac] = *params; 4008 4009 /* 4010 * No need to update right away, we'll get BSS_CHANGED_QOS 4011 * The exception is P2P_DEVICE interface which needs immediate update. 4012 */ 4013 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4014 int ret; 4015 4016 mutex_lock(&mvm->mutex); 4017 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4018 mutex_unlock(&mvm->mutex); 4019 return ret; 4020 } 4021 return 0; 4022 } 4023 4024 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4025 struct ieee80211_vif *vif, 4026 struct ieee80211_prep_tx_info *info) 4027 { 4028 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4029 4030 mutex_lock(&mvm->mutex); 4031 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4032 mutex_unlock(&mvm->mutex); 4033 } 4034 4035 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4036 struct ieee80211_vif *vif, 4037 struct ieee80211_prep_tx_info *info) 4038 { 4039 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4040 4041 /* for successful cases (auth/assoc), don't cancel session protection */ 4042 if (info->success) 4043 return; 4044 4045 mutex_lock(&mvm->mutex); 4046 iwl_mvm_stop_session_protection(mvm, vif); 4047 mutex_unlock(&mvm->mutex); 4048 } 4049 4050 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4051 struct ieee80211_vif *vif, 4052 struct cfg80211_sched_scan_request *req, 4053 struct ieee80211_scan_ies *ies) 4054 { 4055 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4056 4057 int ret; 4058 4059 mutex_lock(&mvm->mutex); 4060 4061 if (!vif->cfg.idle) { 4062 ret = -EBUSY; 4063 goto out; 4064 } 4065 4066 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4067 4068 out: 4069 mutex_unlock(&mvm->mutex); 4070 return ret; 4071 } 4072 4073 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4074 struct ieee80211_vif *vif) 4075 { 4076 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4077 int ret; 4078 4079 mutex_lock(&mvm->mutex); 4080 4081 /* Due to a race condition, it's possible that mac80211 asks 4082 * us to stop a sched_scan when it's already stopped. This 4083 * can happen, for instance, if we stopped the scan ourselves, 4084 * called ieee80211_sched_scan_stopped() and the userspace called 4085 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4086 * could run. To handle this, simply return if the scan is 4087 * not running. 4088 */ 4089 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4090 mutex_unlock(&mvm->mutex); 4091 return 0; 4092 } 4093 4094 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4095 mutex_unlock(&mvm->mutex); 4096 iwl_mvm_wait_for_async_handlers(mvm); 4097 4098 return ret; 4099 } 4100 4101 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4102 enum set_key_cmd cmd, 4103 struct ieee80211_vif *vif, 4104 struct ieee80211_sta *sta, 4105 struct ieee80211_key_conf *key) 4106 { 4107 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4108 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4109 struct iwl_mvm_sta *mvmsta = NULL; 4110 struct iwl_mvm_key_pn *ptk_pn; 4111 int keyidx = key->keyidx; 4112 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4113 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4114 int ret, i; 4115 u8 key_offset; 4116 4117 if (sta) 4118 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4119 4120 switch (key->cipher) { 4121 case WLAN_CIPHER_SUITE_TKIP: 4122 if (!mvm->trans->trans_cfg->gen2) { 4123 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4124 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4125 } else if (vif->type == NL80211_IFTYPE_STATION) { 4126 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4127 } else { 4128 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4129 return -EOPNOTSUPP; 4130 } 4131 break; 4132 case WLAN_CIPHER_SUITE_CCMP: 4133 case WLAN_CIPHER_SUITE_GCMP: 4134 case WLAN_CIPHER_SUITE_GCMP_256: 4135 if (!iwl_mvm_has_new_tx_api(mvm)) 4136 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4137 break; 4138 case WLAN_CIPHER_SUITE_AES_CMAC: 4139 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4140 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4141 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4142 break; 4143 case WLAN_CIPHER_SUITE_WEP40: 4144 case WLAN_CIPHER_SUITE_WEP104: 4145 if (vif->type == NL80211_IFTYPE_STATION) 4146 break; 4147 if (iwl_mvm_has_new_tx_api(mvm)) 4148 return -EOPNOTSUPP; 4149 /* support HW crypto on TX */ 4150 return 0; 4151 default: 4152 return -EOPNOTSUPP; 4153 } 4154 4155 switch (cmd) { 4156 case SET_KEY: 4157 if (vif->type == NL80211_IFTYPE_STATION && 4158 (keyidx == 6 || keyidx == 7)) 4159 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4160 key); 4161 4162 if ((vif->type == NL80211_IFTYPE_ADHOC || 4163 vif->type == NL80211_IFTYPE_AP) && !sta) { 4164 /* 4165 * GTK on AP interface is a TX-only key, return 0; 4166 * on IBSS they're per-station and because we're lazy 4167 * we don't support them for RX, so do the same. 4168 * CMAC/GMAC in AP/IBSS modes must be done in software. 4169 * 4170 * Except, of course, beacon protection - it must be 4171 * offloaded since we just set a beacon template. 4172 */ 4173 if (keyidx < 6 && 4174 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4175 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4176 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4177 ret = -EOPNOTSUPP; 4178 break; 4179 } 4180 4181 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4182 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4183 !iwl_mvm_has_new_tx_api(mvm)) { 4184 key->hw_key_idx = STA_KEY_IDX_INVALID; 4185 ret = 0; 4186 break; 4187 } 4188 4189 if (!mvmvif->ap_ibss_active) { 4190 for (i = 0; 4191 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4192 i++) { 4193 if (!mvmvif->ap_early_keys[i]) { 4194 mvmvif->ap_early_keys[i] = key; 4195 break; 4196 } 4197 } 4198 4199 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4200 ret = -ENOSPC; 4201 else 4202 ret = 0; 4203 4204 break; 4205 } 4206 } 4207 4208 /* During FW restart, in order to restore the state as it was, 4209 * don't try to reprogram keys we previously failed for. 4210 */ 4211 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4212 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4213 IWL_DEBUG_MAC80211(mvm, 4214 "skip invalid idx key programming during restart\n"); 4215 ret = 0; 4216 break; 4217 } 4218 4219 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4220 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4221 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4222 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4223 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4224 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4225 struct ieee80211_key_seq seq; 4226 int tid, q; 4227 4228 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4229 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4230 mvm->trans->num_rx_queues), 4231 GFP_KERNEL); 4232 if (!ptk_pn) { 4233 ret = -ENOMEM; 4234 break; 4235 } 4236 4237 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4238 ieee80211_get_key_rx_seq(key, tid, &seq); 4239 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4240 memcpy(ptk_pn->q[q].pn[tid], 4241 seq.ccmp.pn, 4242 IEEE80211_CCMP_PN_LEN); 4243 } 4244 4245 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4246 } 4247 4248 /* in HW restart reuse the index, otherwise request a new one */ 4249 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4250 key_offset = key->hw_key_idx; 4251 else 4252 key_offset = STA_KEY_IDX_INVALID; 4253 4254 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4255 mvmsta->pairwise_cipher = key->cipher; 4256 4257 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4258 sta ? sta->addr : NULL, key->keyidx); 4259 4260 if (sec_key_ver) 4261 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4262 else 4263 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4264 4265 if (ret) { 4266 IWL_WARN(mvm, "set key failed\n"); 4267 key->hw_key_idx = STA_KEY_IDX_INVALID; 4268 /* 4269 * can't add key for RX, but we don't need it 4270 * in the device for TX so still return 0, 4271 * unless we have new TX API where we cannot 4272 * put key material into the TX_CMD 4273 */ 4274 if (iwl_mvm_has_new_tx_api(mvm)) 4275 ret = -EOPNOTSUPP; 4276 else 4277 ret = 0; 4278 } 4279 4280 break; 4281 case DISABLE_KEY: 4282 if (vif->type == NL80211_IFTYPE_STATION && 4283 (keyidx == 6 || keyidx == 7)) 4284 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4285 NULL); 4286 4287 ret = -ENOENT; 4288 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4289 if (mvmvif->ap_early_keys[i] == key) { 4290 mvmvif->ap_early_keys[i] = NULL; 4291 ret = 0; 4292 } 4293 } 4294 4295 /* found in pending list - don't do anything else */ 4296 if (ret == 0) 4297 break; 4298 4299 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4300 ret = 0; 4301 break; 4302 } 4303 4304 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4305 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4306 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4307 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4308 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4309 ptk_pn = rcu_dereference_protected( 4310 mvmsta->ptk_pn[keyidx], 4311 lockdep_is_held(&mvm->mutex)); 4312 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4313 if (ptk_pn) 4314 kfree_rcu(ptk_pn, rcu_head); 4315 } 4316 4317 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4318 if (sec_key_ver) 4319 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4320 else 4321 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4322 break; 4323 default: 4324 ret = -EINVAL; 4325 } 4326 4327 return ret; 4328 } 4329 4330 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4331 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4332 struct ieee80211_key_conf *key) 4333 { 4334 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4335 int ret; 4336 4337 mutex_lock(&mvm->mutex); 4338 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4339 mutex_unlock(&mvm->mutex); 4340 4341 return ret; 4342 } 4343 4344 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4345 struct ieee80211_vif *vif, 4346 struct ieee80211_key_conf *keyconf, 4347 struct ieee80211_sta *sta, 4348 u32 iv32, u16 *phase1key) 4349 { 4350 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4351 4352 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4353 return; 4354 4355 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4356 } 4357 4358 4359 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4360 struct iwl_rx_packet *pkt, void *data) 4361 { 4362 struct iwl_mvm *mvm = 4363 container_of(notif_wait, struct iwl_mvm, notif_wait); 4364 struct iwl_hs20_roc_res *resp; 4365 int resp_len = iwl_rx_packet_payload_len(pkt); 4366 struct iwl_mvm_time_event_data *te_data = data; 4367 4368 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4369 return true; 4370 4371 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4372 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4373 return true; 4374 } 4375 4376 resp = (void *)pkt->data; 4377 4378 IWL_DEBUG_TE(mvm, 4379 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4380 resp->status, resp->event_unique_id); 4381 4382 te_data->uid = le32_to_cpu(resp->event_unique_id); 4383 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4384 te_data->uid); 4385 4386 spin_lock_bh(&mvm->time_event_lock); 4387 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4388 spin_unlock_bh(&mvm->time_event_lock); 4389 4390 return true; 4391 } 4392 4393 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4394 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4395 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4396 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4397 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4398 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4399 struct ieee80211_channel *channel, 4400 struct ieee80211_vif *vif, 4401 int duration) 4402 { 4403 int res; 4404 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4405 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4406 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4407 struct iwl_notification_wait wait_time_event; 4408 u32 dtim_interval = vif->bss_conf.dtim_period * 4409 vif->bss_conf.beacon_int; 4410 u32 req_dur, delay; 4411 struct iwl_hs20_roc_req aux_roc_req = { 4412 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4413 .id_and_color = 4414 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4415 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4416 }; 4417 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4418 &aux_roc_req.channel_info); 4419 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4420 4421 /* Set the channel info data */ 4422 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4423 iwl_mvm_phy_band_from_nl80211(channel->band), 4424 IWL_PHY_CHANNEL_MODE20, 4425 0); 4426 4427 /* Set the time and duration */ 4428 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4429 4430 delay = AUX_ROC_MIN_DELAY; 4431 req_dur = MSEC_TO_TU(duration); 4432 4433 /* 4434 * If we are associated we want the delay time to be at least one 4435 * dtim interval so that the FW can wait until after the DTIM and 4436 * then start the time event, this will potentially allow us to 4437 * remain off-channel for the max duration. 4438 * Since we want to use almost a whole dtim interval we would also 4439 * like the delay to be for 2-3 dtim intervals, in case there are 4440 * other time events with higher priority. 4441 */ 4442 if (vif->cfg.assoc) { 4443 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4444 /* We cannot remain off-channel longer than the DTIM interval */ 4445 if (dtim_interval <= req_dur) { 4446 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4447 if (req_dur <= AUX_ROC_MIN_DURATION) 4448 req_dur = dtim_interval - 4449 AUX_ROC_MIN_SAFETY_BUFFER; 4450 } 4451 } 4452 4453 tail->duration = cpu_to_le32(req_dur); 4454 tail->apply_time_max_delay = cpu_to_le32(delay); 4455 4456 IWL_DEBUG_TE(mvm, 4457 "ROC: Requesting to remain on channel %u for %ums\n", 4458 channel->hw_value, req_dur); 4459 IWL_DEBUG_TE(mvm, 4460 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4461 duration, delay, dtim_interval); 4462 4463 /* Set the node address */ 4464 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4465 4466 lockdep_assert_held(&mvm->mutex); 4467 4468 spin_lock_bh(&mvm->time_event_lock); 4469 4470 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4471 spin_unlock_bh(&mvm->time_event_lock); 4472 return -EIO; 4473 } 4474 4475 te_data->vif = vif; 4476 te_data->duration = duration; 4477 te_data->id = HOT_SPOT_CMD; 4478 4479 spin_unlock_bh(&mvm->time_event_lock); 4480 4481 /* 4482 * Use a notification wait, which really just processes the 4483 * command response and doesn't wait for anything, in order 4484 * to be able to process the response and get the UID inside 4485 * the RX path. Using CMD_WANT_SKB doesn't work because it 4486 * stores the buffer and then wakes up this thread, by which 4487 * time another notification (that the time event started) 4488 * might already be processed unsuccessfully. 4489 */ 4490 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4491 time_event_response, 4492 ARRAY_SIZE(time_event_response), 4493 iwl_mvm_rx_aux_roc, te_data); 4494 4495 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4496 &aux_roc_req); 4497 4498 if (res) { 4499 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4500 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4501 goto out_clear_te; 4502 } 4503 4504 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4505 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4506 /* should never fail */ 4507 WARN_ON_ONCE(res); 4508 4509 if (res) { 4510 out_clear_te: 4511 spin_lock_bh(&mvm->time_event_lock); 4512 iwl_mvm_te_clear_data(mvm, te_data); 4513 spin_unlock_bh(&mvm->time_event_lock); 4514 } 4515 4516 return res; 4517 } 4518 4519 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4520 { 4521 int ret = 0; 4522 4523 lockdep_assert_held(&mvm->mutex); 4524 4525 if (!fw_has_capa(&mvm->fw->ucode_capa, 4526 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4527 IWL_ERR(mvm, "hotspot not supported\n"); 4528 return -EINVAL; 4529 } 4530 4531 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) { 4532 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4533 WARN(ret, "Failed to allocate aux station"); 4534 } 4535 4536 return ret; 4537 } 4538 4539 static int iwl_mvm_roc_switch_binding(struct iwl_mvm *mvm, 4540 struct ieee80211_vif *vif, 4541 struct iwl_mvm_phy_ctxt *new_phy_ctxt) 4542 { 4543 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4544 int ret = 0; 4545 4546 lockdep_assert_held(&mvm->mutex); 4547 4548 /* Unbind the P2P_DEVICE from the current PHY context, 4549 * and if the PHY context is not used remove it. 4550 */ 4551 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4552 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4553 return ret; 4554 4555 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4556 4557 /* Bind the P2P_DEVICE to the current PHY Context */ 4558 mvmvif->deflink.phy_ctxt = new_phy_ctxt; 4559 4560 ret = iwl_mvm_binding_add_vif(mvm, vif); 4561 WARN(ret, "Failed binding P2P_DEVICE\n"); 4562 return ret; 4563 } 4564 4565 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4566 struct ieee80211_vif *vif, 4567 struct ieee80211_channel *channel, 4568 int duration, 4569 enum ieee80211_roc_type type) 4570 { 4571 struct iwl_mvm_roc_ops ops = { 4572 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4573 .switch_phy_ctxt = iwl_mvm_roc_switch_binding, 4574 }; 4575 4576 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4577 } 4578 4579 /* Execute the common part for MLD and non-MLD modes */ 4580 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4581 struct ieee80211_channel *channel, int duration, 4582 enum ieee80211_roc_type type, 4583 struct iwl_mvm_roc_ops *ops) 4584 { 4585 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4586 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4587 struct cfg80211_chan_def chandef; 4588 struct iwl_mvm_phy_ctxt *phy_ctxt; 4589 bool band_change_removal; 4590 int ret, i; 4591 u32 lmac_id; 4592 4593 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4594 duration, type); 4595 4596 /* 4597 * Flush the done work, just in case it's still pending, so that 4598 * the work it does can complete and we can accept new frames. 4599 */ 4600 flush_work(&mvm->roc_done_wk); 4601 4602 mutex_lock(&mvm->mutex); 4603 4604 switch (vif->type) { 4605 case NL80211_IFTYPE_STATION: 4606 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, channel->band); 4607 4608 /* Use aux roc framework (HS20) */ 4609 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4610 if (!ret) 4611 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4612 vif, duration); 4613 goto out_unlock; 4614 case NL80211_IFTYPE_P2P_DEVICE: 4615 /* handle below */ 4616 break; 4617 default: 4618 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4619 ret = -EINVAL; 4620 goto out_unlock; 4621 } 4622 4623 for (i = 0; i < NUM_PHY_CTX; i++) { 4624 phy_ctxt = &mvm->phy_ctxts[i]; 4625 if (phy_ctxt->ref == 0 || mvmvif->deflink.phy_ctxt == phy_ctxt) 4626 continue; 4627 4628 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4629 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4630 if (ret) 4631 goto out_unlock; 4632 4633 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4634 goto schedule_time_event; 4635 } 4636 } 4637 4638 /* Need to update the PHY context only if the ROC channel changed */ 4639 if (channel == mvmvif->deflink.phy_ctxt->channel) 4640 goto schedule_time_event; 4641 4642 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4643 4644 /* 4645 * Check if the remain-on-channel is on a different band and that 4646 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4647 * so, we'll need to release and then re-configure here, since we 4648 * must not remove a PHY context that's part of a binding. 4649 */ 4650 band_change_removal = 4651 fw_has_capa(&mvm->fw->ucode_capa, 4652 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4653 mvmvif->deflink.phy_ctxt->channel->band != chandef.chan->band; 4654 4655 if (mvmvif->deflink.phy_ctxt->ref == 1 && !band_change_removal) { 4656 /* 4657 * Change the PHY context configuration as it is currently 4658 * referenced only by the P2P Device MAC (and we can modify it) 4659 */ 4660 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->deflink.phy_ctxt, 4661 &chandef, 1, 1); 4662 if (ret) 4663 goto out_unlock; 4664 } else { 4665 /* 4666 * The PHY context is shared with other MACs (or we're trying to 4667 * switch bands), so remove the P2P Device from the binding, 4668 * allocate an new PHY context and create a new binding. 4669 */ 4670 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4671 if (!phy_ctxt) { 4672 ret = -ENOSPC; 4673 goto out_unlock; 4674 } 4675 4676 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4677 1, 1); 4678 if (ret) { 4679 IWL_ERR(mvm, "Failed to change PHY context\n"); 4680 goto out_unlock; 4681 } 4682 4683 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4684 if (ret) 4685 goto out_unlock; 4686 4687 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4688 } 4689 4690 schedule_time_event: 4691 /* Schedule the time events */ 4692 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4693 4694 out_unlock: 4695 mutex_unlock(&mvm->mutex); 4696 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4697 return ret; 4698 } 4699 4700 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4701 struct ieee80211_vif *vif) 4702 { 4703 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4704 4705 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4706 4707 mutex_lock(&mvm->mutex); 4708 iwl_mvm_stop_roc(mvm, vif); 4709 mutex_unlock(&mvm->mutex); 4710 4711 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4712 return 0; 4713 } 4714 4715 struct iwl_mvm_ftm_responder_iter_data { 4716 bool responder; 4717 struct ieee80211_chanctx_conf *ctx; 4718 }; 4719 4720 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4721 struct ieee80211_vif *vif) 4722 { 4723 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4724 4725 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4726 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4727 data->responder = true; 4728 } 4729 4730 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4731 struct ieee80211_chanctx_conf *ctx) 4732 { 4733 struct iwl_mvm_ftm_responder_iter_data data = { 4734 .responder = false, 4735 .ctx = ctx, 4736 }; 4737 4738 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4739 IEEE80211_IFACE_ITER_NORMAL, 4740 iwl_mvm_ftm_responder_chanctx_iter, 4741 &data); 4742 return data.responder; 4743 } 4744 4745 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4746 struct ieee80211_chanctx_conf *ctx) 4747 { 4748 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4749 struct iwl_mvm_phy_ctxt *phy_ctxt; 4750 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4751 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4752 int ret; 4753 4754 lockdep_assert_held(&mvm->mutex); 4755 4756 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4757 4758 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4759 if (!phy_ctxt) { 4760 ret = -ENOSPC; 4761 goto out; 4762 } 4763 4764 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4765 ctx->rx_chains_static, 4766 ctx->rx_chains_dynamic); 4767 if (ret) { 4768 IWL_ERR(mvm, "Failed to add PHY context\n"); 4769 goto out; 4770 } 4771 4772 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4773 *phy_ctxt_id = phy_ctxt->id; 4774 out: 4775 return ret; 4776 } 4777 4778 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4779 struct ieee80211_chanctx_conf *ctx) 4780 { 4781 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4782 int ret; 4783 4784 mutex_lock(&mvm->mutex); 4785 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4786 mutex_unlock(&mvm->mutex); 4787 4788 return ret; 4789 } 4790 4791 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4792 struct ieee80211_chanctx_conf *ctx) 4793 { 4794 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4795 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4796 4797 lockdep_assert_held(&mvm->mutex); 4798 4799 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4800 } 4801 4802 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4803 struct ieee80211_chanctx_conf *ctx) 4804 { 4805 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4806 4807 mutex_lock(&mvm->mutex); 4808 __iwl_mvm_remove_chanctx(mvm, ctx); 4809 mutex_unlock(&mvm->mutex); 4810 } 4811 4812 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4813 struct ieee80211_chanctx_conf *ctx, u32 changed) 4814 { 4815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4816 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4817 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4818 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4819 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4820 4821 if (WARN_ONCE((phy_ctxt->ref > 1) && 4822 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4823 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4824 IEEE80211_CHANCTX_CHANGE_RADAR | 4825 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4826 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4827 phy_ctxt->ref, changed)) 4828 return; 4829 4830 mutex_lock(&mvm->mutex); 4831 4832 /* we are only changing the min_width, may be a noop */ 4833 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4834 if (phy_ctxt->width == def->width) 4835 goto out_unlock; 4836 4837 /* we are just toggling between 20_NOHT and 20 */ 4838 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4839 def->width <= NL80211_CHAN_WIDTH_20) 4840 goto out_unlock; 4841 } 4842 4843 iwl_mvm_bt_coex_vif_change(mvm); 4844 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4845 ctx->rx_chains_static, 4846 ctx->rx_chains_dynamic); 4847 4848 out_unlock: 4849 mutex_unlock(&mvm->mutex); 4850 } 4851 4852 /* 4853 * This function executes the common part for MLD and non-MLD modes. 4854 * 4855 * Returns true if we're done assigning the chanctx 4856 * (either on failure or success) 4857 */ 4858 static bool 4859 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4860 struct ieee80211_vif *vif, 4861 struct ieee80211_chanctx_conf *ctx, 4862 bool switching_chanctx, int *ret) 4863 { 4864 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4865 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4866 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4867 4868 lockdep_assert_held(&mvm->mutex); 4869 4870 mvmvif->deflink.phy_ctxt = phy_ctxt; 4871 4872 switch (vif->type) { 4873 case NL80211_IFTYPE_AP: 4874 /* only needed if we're switching chanctx (i.e. during CSA) */ 4875 if (switching_chanctx) { 4876 mvmvif->ap_ibss_active = true; 4877 break; 4878 } 4879 fallthrough; 4880 case NL80211_IFTYPE_ADHOC: 4881 /* 4882 * The AP binding flow is handled as part of the start_ap flow 4883 * (in bss_info_changed), similarly for IBSS. 4884 */ 4885 *ret = 0; 4886 return true; 4887 case NL80211_IFTYPE_STATION: 4888 break; 4889 case NL80211_IFTYPE_MONITOR: 4890 /* always disable PS when a monitor interface is active */ 4891 mvmvif->ps_disabled = true; 4892 break; 4893 default: 4894 *ret = -EINVAL; 4895 return true; 4896 } 4897 return false; 4898 } 4899 4900 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4901 struct ieee80211_vif *vif, 4902 struct ieee80211_bss_conf *link_conf, 4903 struct ieee80211_chanctx_conf *ctx, 4904 bool switching_chanctx) 4905 { 4906 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4907 int ret; 4908 4909 if (WARN_ON(!link_conf)) 4910 return -EINVAL; 4911 4912 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4913 switching_chanctx, &ret)) 4914 goto out; 4915 4916 ret = iwl_mvm_binding_add_vif(mvm, vif); 4917 if (ret) 4918 goto out; 4919 4920 /* 4921 * Power state must be updated before quotas, 4922 * otherwise fw will complain. 4923 */ 4924 iwl_mvm_power_update_mac(mvm); 4925 4926 /* Setting the quota at this stage is only required for monitor 4927 * interfaces. For the other types, the bss_info changed flow 4928 * will handle quota settings. 4929 */ 4930 if (vif->type == NL80211_IFTYPE_MONITOR) { 4931 mvmvif->monitor_active = true; 4932 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4933 if (ret) 4934 goto out_remove_binding; 4935 4936 ret = iwl_mvm_add_snif_sta(mvm, vif); 4937 if (ret) 4938 goto out_remove_binding; 4939 4940 } 4941 4942 /* Handle binding during CSA */ 4943 if (vif->type == NL80211_IFTYPE_AP) { 4944 iwl_mvm_update_quotas(mvm, false, NULL); 4945 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4946 } 4947 4948 if (vif->type == NL80211_IFTYPE_STATION) { 4949 if (!switching_chanctx) { 4950 mvmvif->csa_bcn_pending = false; 4951 goto out; 4952 } 4953 4954 mvmvif->csa_bcn_pending = true; 4955 4956 if (!fw_has_capa(&mvm->fw->ucode_capa, 4957 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4958 u32 duration = 3 * vif->bss_conf.beacon_int; 4959 4960 /* Protect the session to make sure we hear the first 4961 * beacon on the new channel. 4962 */ 4963 iwl_mvm_protect_session(mvm, vif, duration, duration, 4964 vif->bss_conf.beacon_int / 2, 4965 true); 4966 } 4967 4968 iwl_mvm_update_quotas(mvm, false, NULL); 4969 } 4970 4971 goto out; 4972 4973 out_remove_binding: 4974 iwl_mvm_binding_remove_vif(mvm, vif); 4975 iwl_mvm_power_update_mac(mvm); 4976 out: 4977 if (ret) 4978 mvmvif->deflink.phy_ctxt = NULL; 4979 return ret; 4980 } 4981 4982 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4983 struct ieee80211_vif *vif, 4984 struct ieee80211_bss_conf *link_conf, 4985 struct ieee80211_chanctx_conf *ctx) 4986 { 4987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4988 int ret; 4989 4990 mutex_lock(&mvm->mutex); 4991 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 4992 mutex_unlock(&mvm->mutex); 4993 4994 return ret; 4995 } 4996 4997 /* 4998 * This function executes the common part for MLD and non-MLD modes. 4999 * 5000 * Returns if chanctx unassign chanctx is done 5001 * (either on failure or success) 5002 */ 5003 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5004 struct ieee80211_vif *vif, 5005 bool switching_chanctx) 5006 { 5007 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5008 5009 lockdep_assert_held(&mvm->mutex); 5010 iwl_mvm_remove_time_event(mvm, mvmvif, 5011 &mvmvif->time_event_data); 5012 5013 switch (vif->type) { 5014 case NL80211_IFTYPE_ADHOC: 5015 return true; 5016 case NL80211_IFTYPE_MONITOR: 5017 mvmvif->monitor_active = false; 5018 mvmvif->ps_disabled = false; 5019 break; 5020 case NL80211_IFTYPE_AP: 5021 /* This part is triggered only during CSA */ 5022 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5023 return true; 5024 5025 mvmvif->csa_countdown = false; 5026 5027 /* Set CS bit on all the stations */ 5028 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5029 5030 /* Save blocked iface, the timeout is set on the next beacon */ 5031 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5032 5033 mvmvif->ap_ibss_active = false; 5034 break; 5035 default: 5036 break; 5037 } 5038 return false; 5039 } 5040 5041 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5042 struct ieee80211_vif *vif, 5043 struct ieee80211_bss_conf *link_conf, 5044 struct ieee80211_chanctx_conf *ctx, 5045 bool switching_chanctx) 5046 { 5047 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5048 struct ieee80211_vif *disabled_vif = NULL; 5049 5050 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5051 goto out; 5052 5053 if (vif->type == NL80211_IFTYPE_MONITOR) 5054 iwl_mvm_rm_snif_sta(mvm, vif); 5055 5056 5057 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5058 disabled_vif = vif; 5059 if (!fw_has_capa(&mvm->fw->ucode_capa, 5060 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5061 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5062 } 5063 5064 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5065 iwl_mvm_binding_remove_vif(mvm, vif); 5066 5067 out: 5068 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5069 switching_chanctx) 5070 return; 5071 mvmvif->deflink.phy_ctxt = NULL; 5072 iwl_mvm_power_update_mac(mvm); 5073 } 5074 5075 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5076 struct ieee80211_vif *vif, 5077 struct ieee80211_bss_conf *link_conf, 5078 struct ieee80211_chanctx_conf *ctx) 5079 { 5080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5081 5082 mutex_lock(&mvm->mutex); 5083 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5084 mutex_unlock(&mvm->mutex); 5085 } 5086 5087 static int 5088 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5089 struct ieee80211_vif_chanctx_switch *vifs, 5090 struct iwl_mvm_switch_vif_chanctx_ops *ops) 5091 { 5092 int ret; 5093 5094 mutex_lock(&mvm->mutex); 5095 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5096 vifs[0].old_ctx, true); 5097 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5098 5099 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5100 if (ret) { 5101 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5102 goto out_reassign; 5103 } 5104 5105 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5106 vifs[0].new_ctx, true); 5107 if (ret) { 5108 IWL_ERR(mvm, 5109 "failed to assign new_ctx during channel switch\n"); 5110 goto out_remove; 5111 } 5112 5113 /* we don't support TDLS during DCM - can be caused by channel switch */ 5114 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5115 iwl_mvm_teardown_tdls_peers(mvm); 5116 5117 goto out; 5118 5119 out_remove: 5120 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5121 5122 out_reassign: 5123 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5124 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5125 goto out_restart; 5126 } 5127 5128 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5129 vifs[0].old_ctx, true)) { 5130 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5131 goto out_restart; 5132 } 5133 5134 goto out; 5135 5136 out_restart: 5137 /* things keep failing, better restart the hw */ 5138 iwl_mvm_nic_restart(mvm, false); 5139 5140 out: 5141 mutex_unlock(&mvm->mutex); 5142 5143 return ret; 5144 } 5145 5146 static int 5147 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5148 struct ieee80211_vif_chanctx_switch *vifs, 5149 struct iwl_mvm_switch_vif_chanctx_ops *ops) 5150 { 5151 int ret; 5152 5153 mutex_lock(&mvm->mutex); 5154 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5155 vifs[0].old_ctx, true); 5156 5157 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5158 vifs[0].new_ctx, true); 5159 if (ret) { 5160 IWL_ERR(mvm, 5161 "failed to assign new_ctx during channel switch\n"); 5162 goto out_reassign; 5163 } 5164 5165 goto out; 5166 5167 out_reassign: 5168 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5169 vifs[0].old_ctx, true)) { 5170 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5171 goto out_restart; 5172 } 5173 5174 goto out; 5175 5176 out_restart: 5177 /* things keep failing, better restart the hw */ 5178 iwl_mvm_nic_restart(mvm, false); 5179 5180 out: 5181 mutex_unlock(&mvm->mutex); 5182 5183 return ret; 5184 } 5185 5186 /* Execute the common part for both MLD and non-MLD modes */ 5187 int 5188 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5189 struct ieee80211_vif_chanctx_switch *vifs, 5190 int n_vifs, 5191 enum ieee80211_chanctx_switch_mode mode, 5192 struct iwl_mvm_switch_vif_chanctx_ops *ops) 5193 { 5194 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5195 int ret; 5196 5197 /* we only support a single-vif right now */ 5198 if (n_vifs > 1) 5199 return -EOPNOTSUPP; 5200 5201 switch (mode) { 5202 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5203 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5204 break; 5205 case CHANCTX_SWMODE_REASSIGN_VIF: 5206 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5207 break; 5208 default: 5209 ret = -EOPNOTSUPP; 5210 break; 5211 } 5212 5213 return ret; 5214 } 5215 5216 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5217 struct ieee80211_vif_chanctx_switch *vifs, 5218 int n_vifs, 5219 enum ieee80211_chanctx_switch_mode mode) 5220 { 5221 struct iwl_mvm_switch_vif_chanctx_ops ops = { 5222 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5223 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5224 }; 5225 5226 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5227 } 5228 5229 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5230 { 5231 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5232 5233 return mvm->ibss_manager; 5234 } 5235 5236 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5237 bool set) 5238 { 5239 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5240 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5241 5242 if (!mvm_sta || !mvm_sta->vif) { 5243 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5244 return -EINVAL; 5245 } 5246 5247 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5248 &mvm_sta->vif->bss_conf); 5249 } 5250 5251 #ifdef CONFIG_NL80211_TESTMODE 5252 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5253 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5254 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5255 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5256 }; 5257 5258 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5259 struct ieee80211_vif *vif, 5260 void *data, int len) 5261 { 5262 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5263 int err; 5264 u32 noa_duration; 5265 5266 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5267 iwl_mvm_tm_policy, NULL); 5268 if (err) 5269 return err; 5270 5271 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5272 return -EINVAL; 5273 5274 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5275 case IWL_MVM_TM_CMD_SET_NOA: 5276 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5277 !vif->bss_conf.enable_beacon || 5278 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5279 return -EINVAL; 5280 5281 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5282 if (noa_duration >= vif->bss_conf.beacon_int) 5283 return -EINVAL; 5284 5285 mvm->noa_duration = noa_duration; 5286 mvm->noa_vif = vif; 5287 5288 return iwl_mvm_update_quotas(mvm, true, NULL); 5289 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5290 /* must be associated client vif - ignore authorized */ 5291 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5292 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5293 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5294 return -EINVAL; 5295 5296 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5297 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5298 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5299 } 5300 5301 return -EOPNOTSUPP; 5302 } 5303 5304 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5305 struct ieee80211_vif *vif, 5306 void *data, int len) 5307 { 5308 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5309 int err; 5310 5311 mutex_lock(&mvm->mutex); 5312 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5313 mutex_unlock(&mvm->mutex); 5314 5315 return err; 5316 } 5317 #endif 5318 5319 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5320 struct ieee80211_channel_switch *chsw) 5321 { 5322 /* By implementing this operation, we prevent mac80211 from 5323 * starting its own channel switch timer, so that we can call 5324 * ieee80211_chswitch_done() ourselves at the right time 5325 * (which is when the absence time event starts). 5326 */ 5327 5328 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5329 "dummy channel switch op\n"); 5330 } 5331 5332 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5333 struct ieee80211_vif *vif, 5334 struct ieee80211_channel_switch *chsw) 5335 { 5336 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5337 struct iwl_chan_switch_te_cmd cmd = { 5338 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5339 mvmvif->color)), 5340 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5341 .tsf = cpu_to_le32(chsw->timestamp), 5342 .cs_count = chsw->count, 5343 .cs_mode = chsw->block_tx, 5344 }; 5345 5346 lockdep_assert_held(&mvm->mutex); 5347 5348 if (chsw->delay) 5349 cmd.cs_delayed_bcn_count = 5350 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5351 5352 return iwl_mvm_send_cmd_pdu(mvm, 5353 WIDE_ID(MAC_CONF_GROUP, 5354 CHANNEL_SWITCH_TIME_EVENT_CMD), 5355 0, sizeof(cmd), &cmd); 5356 } 5357 5358 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5359 struct ieee80211_vif *vif, 5360 struct ieee80211_channel_switch *chsw) 5361 { 5362 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5363 u32 apply_time; 5364 5365 /* Schedule the time event to a bit before beacon 1, 5366 * to make sure we're in the new channel when the 5367 * GO/AP arrives. In case count <= 1 immediately schedule the 5368 * TE (this might result with some packet loss or connection 5369 * loss). 5370 */ 5371 if (chsw->count <= 1) 5372 apply_time = 0; 5373 else 5374 apply_time = chsw->device_timestamp + 5375 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5376 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5377 5378 if (chsw->block_tx) 5379 iwl_mvm_csa_client_absent(mvm, vif); 5380 5381 if (mvmvif->bf_data.bf_enabled) { 5382 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5383 5384 if (ret) 5385 return ret; 5386 } 5387 5388 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5389 apply_time); 5390 5391 return 0; 5392 } 5393 5394 #define IWL_MAX_CSA_BLOCK_TX 1500 5395 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5396 struct ieee80211_vif *vif, 5397 struct ieee80211_channel_switch *chsw) 5398 { 5399 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5400 struct ieee80211_vif *csa_vif; 5401 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5402 int ret; 5403 5404 mutex_lock(&mvm->mutex); 5405 5406 mvmvif->csa_failed = false; 5407 5408 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5409 chsw->chandef.center_freq1); 5410 5411 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5412 ieee80211_vif_to_wdev(vif), 5413 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5414 5415 switch (vif->type) { 5416 case NL80211_IFTYPE_AP: 5417 csa_vif = 5418 rcu_dereference_protected(mvm->csa_vif, 5419 lockdep_is_held(&mvm->mutex)); 5420 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5421 "Another CSA is already in progress")) { 5422 ret = -EBUSY; 5423 goto out_unlock; 5424 } 5425 5426 /* we still didn't unblock tx. prevent new CS meanwhile */ 5427 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5428 lockdep_is_held(&mvm->mutex))) { 5429 ret = -EBUSY; 5430 goto out_unlock; 5431 } 5432 5433 rcu_assign_pointer(mvm->csa_vif, vif); 5434 5435 if (WARN_ONCE(mvmvif->csa_countdown, 5436 "Previous CSA countdown didn't complete")) { 5437 ret = -EBUSY; 5438 goto out_unlock; 5439 } 5440 5441 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5442 5443 break; 5444 case NL80211_IFTYPE_STATION: 5445 /* 5446 * In the new flow FW is in charge of timing the switch so there 5447 * is no need for all of this 5448 */ 5449 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5450 CHANNEL_SWITCH_ERROR_NOTIF, 5451 0)) 5452 break; 5453 5454 /* 5455 * We haven't configured the firmware to be associated yet since 5456 * we don't know the dtim period. In this case, the firmware can't 5457 * track the beacons. 5458 */ 5459 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5460 ret = -EBUSY; 5461 goto out_unlock; 5462 } 5463 5464 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5465 schedule_delayed_work(&mvmvif->csa_work, 0); 5466 5467 if (chsw->block_tx) { 5468 /* 5469 * In case of undetermined / long time with immediate 5470 * quiet monitor status to gracefully disconnect 5471 */ 5472 if (!chsw->count || 5473 chsw->count * vif->bss_conf.beacon_int > 5474 IWL_MAX_CSA_BLOCK_TX) 5475 schedule_delayed_work(&mvmvif->csa_work, 5476 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5477 } 5478 5479 if (!fw_has_capa(&mvm->fw->ucode_capa, 5480 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5481 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5482 if (ret) 5483 goto out_unlock; 5484 } else { 5485 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5486 } 5487 5488 mvmvif->csa_count = chsw->count; 5489 mvmvif->csa_misbehave = false; 5490 break; 5491 default: 5492 break; 5493 } 5494 5495 mvmvif->ps_disabled = true; 5496 5497 ret = iwl_mvm_power_update_ps(mvm); 5498 if (ret) 5499 goto out_unlock; 5500 5501 /* we won't be on this channel any longer */ 5502 iwl_mvm_teardown_tdls_peers(mvm); 5503 5504 out_unlock: 5505 mutex_unlock(&mvm->mutex); 5506 5507 return ret; 5508 } 5509 5510 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5511 struct ieee80211_vif *vif, 5512 struct ieee80211_channel_switch *chsw) 5513 { 5514 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5515 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5516 struct iwl_chan_switch_te_cmd cmd = { 5517 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5518 mvmvif->color)), 5519 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5520 .tsf = cpu_to_le32(chsw->timestamp), 5521 .cs_count = chsw->count, 5522 .cs_mode = chsw->block_tx, 5523 }; 5524 5525 /* 5526 * In the new flow FW is in charge of timing the switch so there is no 5527 * need for all of this 5528 */ 5529 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5530 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5531 return; 5532 5533 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5534 return; 5535 5536 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5537 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5538 5539 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5540 if (mvmvif->csa_misbehave) { 5541 /* Second time, give up on this AP*/ 5542 iwl_mvm_abort_channel_switch(hw, vif); 5543 ieee80211_chswitch_done(vif, false); 5544 mvmvif->csa_misbehave = false; 5545 return; 5546 } 5547 mvmvif->csa_misbehave = true; 5548 } 5549 mvmvif->csa_count = chsw->count; 5550 5551 mutex_lock(&mvm->mutex); 5552 if (mvmvif->csa_failed) 5553 goto out_unlock; 5554 5555 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5556 WIDE_ID(MAC_CONF_GROUP, 5557 CHANNEL_SWITCH_TIME_EVENT_CMD), 5558 0, sizeof(cmd), &cmd)); 5559 out_unlock: 5560 mutex_unlock(&mvm->mutex); 5561 } 5562 5563 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5564 { 5565 int i; 5566 5567 if (!iwl_mvm_has_new_tx_api(mvm)) { 5568 if (drop) { 5569 mutex_lock(&mvm->mutex); 5570 iwl_mvm_flush_tx_path(mvm, 5571 iwl_mvm_flushable_queues(mvm) & queues); 5572 mutex_unlock(&mvm->mutex); 5573 } else { 5574 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5575 } 5576 return; 5577 } 5578 5579 mutex_lock(&mvm->mutex); 5580 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5581 struct ieee80211_sta *sta; 5582 5583 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5584 lockdep_is_held(&mvm->mutex)); 5585 if (IS_ERR_OR_NULL(sta)) 5586 continue; 5587 5588 if (drop) 5589 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5590 else 5591 iwl_mvm_wait_sta_queues_empty(mvm, 5592 iwl_mvm_sta_from_mac80211(sta)); 5593 } 5594 mutex_unlock(&mvm->mutex); 5595 } 5596 5597 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5598 u32 queues, bool drop) 5599 { 5600 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5601 struct iwl_mvm_vif *mvmvif; 5602 struct iwl_mvm_sta *mvmsta; 5603 struct ieee80211_sta *sta; 5604 int i; 5605 u32 msk = 0; 5606 5607 if (!vif) { 5608 iwl_mvm_flush_no_vif(mvm, queues, drop); 5609 return; 5610 } 5611 5612 if (vif->type != NL80211_IFTYPE_STATION) 5613 return; 5614 5615 /* Make sure we're done with the deferred traffic before flushing */ 5616 flush_work(&mvm->add_stream_wk); 5617 5618 mutex_lock(&mvm->mutex); 5619 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5620 5621 /* flush the AP-station and all TDLS peers */ 5622 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5623 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5624 lockdep_is_held(&mvm->mutex)); 5625 if (IS_ERR_OR_NULL(sta)) 5626 continue; 5627 5628 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5629 if (mvmsta->vif != vif) 5630 continue; 5631 5632 /* make sure only TDLS peers or the AP are flushed */ 5633 WARN_ON_ONCE(i != mvmvif->deflink.ap_sta_id && !sta->tdls); 5634 5635 if (drop) { 5636 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5637 IWL_ERR(mvm, "flush request fail\n"); 5638 } else { 5639 if (iwl_mvm_has_new_tx_api(mvm)) 5640 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5641 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5642 msk |= mvmsta->tfd_queue_msk; 5643 } 5644 } 5645 5646 mutex_unlock(&mvm->mutex); 5647 5648 /* this can take a while, and we may need/want other operations 5649 * to succeed while doing this, so do it without the mutex held 5650 */ 5651 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5652 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5653 } 5654 5655 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5656 struct survey_info *survey) 5657 { 5658 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5659 int ret; 5660 5661 memset(survey, 0, sizeof(*survey)); 5662 5663 /* only support global statistics right now */ 5664 if (idx != 0) 5665 return -ENOENT; 5666 5667 if (!fw_has_capa(&mvm->fw->ucode_capa, 5668 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5669 return -ENOENT; 5670 5671 mutex_lock(&mvm->mutex); 5672 5673 if (iwl_mvm_firmware_running(mvm)) { 5674 ret = iwl_mvm_request_statistics(mvm, false); 5675 if (ret) 5676 goto out; 5677 } 5678 5679 survey->filled = SURVEY_INFO_TIME | 5680 SURVEY_INFO_TIME_RX | 5681 SURVEY_INFO_TIME_TX | 5682 SURVEY_INFO_TIME_SCAN; 5683 survey->time = mvm->accu_radio_stats.on_time_rf + 5684 mvm->radio_stats.on_time_rf; 5685 do_div(survey->time, USEC_PER_MSEC); 5686 5687 survey->time_rx = mvm->accu_radio_stats.rx_time + 5688 mvm->radio_stats.rx_time; 5689 do_div(survey->time_rx, USEC_PER_MSEC); 5690 5691 survey->time_tx = mvm->accu_radio_stats.tx_time + 5692 mvm->radio_stats.tx_time; 5693 do_div(survey->time_tx, USEC_PER_MSEC); 5694 5695 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5696 mvm->radio_stats.on_time_scan; 5697 do_div(survey->time_scan, USEC_PER_MSEC); 5698 5699 ret = 0; 5700 out: 5701 mutex_unlock(&mvm->mutex); 5702 return ret; 5703 } 5704 5705 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5706 { 5707 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5708 u32 gi_ltf; 5709 5710 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5711 case RATE_MCS_CHAN_WIDTH_20: 5712 rinfo->bw = RATE_INFO_BW_20; 5713 break; 5714 case RATE_MCS_CHAN_WIDTH_40: 5715 rinfo->bw = RATE_INFO_BW_40; 5716 break; 5717 case RATE_MCS_CHAN_WIDTH_80: 5718 rinfo->bw = RATE_INFO_BW_80; 5719 break; 5720 case RATE_MCS_CHAN_WIDTH_160: 5721 rinfo->bw = RATE_INFO_BW_160; 5722 break; 5723 case RATE_MCS_CHAN_WIDTH_320: 5724 rinfo->bw = RATE_INFO_BW_320; 5725 break; 5726 } 5727 5728 if (format == RATE_MCS_CCK_MSK || 5729 format == RATE_MCS_LEGACY_OFDM_MSK) { 5730 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5731 5732 /* add the offset needed to get to the legacy ofdm indices */ 5733 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5734 rate += IWL_FIRST_OFDM_RATE; 5735 5736 switch (rate) { 5737 case IWL_RATE_1M_INDEX: 5738 rinfo->legacy = 10; 5739 break; 5740 case IWL_RATE_2M_INDEX: 5741 rinfo->legacy = 20; 5742 break; 5743 case IWL_RATE_5M_INDEX: 5744 rinfo->legacy = 55; 5745 break; 5746 case IWL_RATE_11M_INDEX: 5747 rinfo->legacy = 110; 5748 break; 5749 case IWL_RATE_6M_INDEX: 5750 rinfo->legacy = 60; 5751 break; 5752 case IWL_RATE_9M_INDEX: 5753 rinfo->legacy = 90; 5754 break; 5755 case IWL_RATE_12M_INDEX: 5756 rinfo->legacy = 120; 5757 break; 5758 case IWL_RATE_18M_INDEX: 5759 rinfo->legacy = 180; 5760 break; 5761 case IWL_RATE_24M_INDEX: 5762 rinfo->legacy = 240; 5763 break; 5764 case IWL_RATE_36M_INDEX: 5765 rinfo->legacy = 360; 5766 break; 5767 case IWL_RATE_48M_INDEX: 5768 rinfo->legacy = 480; 5769 break; 5770 case IWL_RATE_54M_INDEX: 5771 rinfo->legacy = 540; 5772 } 5773 return; 5774 } 5775 5776 rinfo->nss = u32_get_bits(rate_n_flags, 5777 RATE_MCS_NSS_MSK) + 1; 5778 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5779 RATE_HT_MCS_INDEX(rate_n_flags) : 5780 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5781 5782 if (rate_n_flags & RATE_MCS_SGI_MSK) 5783 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5784 5785 switch (format) { 5786 case RATE_MCS_EHT_MSK: 5787 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5788 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5789 break; 5790 case RATE_MCS_HE_MSK: 5791 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5792 5793 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5794 5795 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5796 rinfo->bw = RATE_INFO_BW_HE_RU; 5797 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5798 } 5799 5800 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5801 case RATE_MCS_HE_TYPE_SU: 5802 case RATE_MCS_HE_TYPE_EXT_SU: 5803 if (gi_ltf == 0 || gi_ltf == 1) 5804 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5805 else if (gi_ltf == 2) 5806 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5807 else if (gi_ltf == 3) 5808 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5809 else 5810 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5811 break; 5812 case RATE_MCS_HE_TYPE_MU: 5813 if (gi_ltf == 0 || gi_ltf == 1) 5814 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5815 else if (gi_ltf == 2) 5816 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5817 else 5818 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5819 break; 5820 case RATE_MCS_HE_TYPE_TRIG: 5821 if (gi_ltf == 0 || gi_ltf == 1) 5822 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5823 else 5824 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5825 break; 5826 } 5827 5828 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5829 rinfo->he_dcm = 1; 5830 break; 5831 case RATE_MCS_HT_MSK: 5832 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5833 break; 5834 case RATE_MCS_VHT_MSK: 5835 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5836 break; 5837 } 5838 } 5839 5840 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5841 struct ieee80211_vif *vif, 5842 struct ieee80211_sta *sta, 5843 struct station_info *sinfo) 5844 { 5845 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5846 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5847 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5848 5849 if (mvmsta->deflink.avg_energy) { 5850 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5851 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5852 } 5853 5854 if (iwl_mvm_has_tlc_offload(mvm)) { 5855 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5856 5857 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5858 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5859 } 5860 5861 /* if beacon filtering isn't on mac80211 does it anyway */ 5862 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5863 return; 5864 5865 if (!vif->cfg.assoc) 5866 return; 5867 5868 mutex_lock(&mvm->mutex); 5869 5870 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5871 goto unlock; 5872 5873 if (iwl_mvm_request_statistics(mvm, false)) 5874 goto unlock; 5875 5876 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5877 mvmvif->deflink.beacon_stats.accu_num_beacons; 5878 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5879 if (mvmvif->deflink.beacon_stats.avg_signal) { 5880 /* firmware only reports a value after RXing a few beacons */ 5881 sinfo->rx_beacon_signal_avg = 5882 mvmvif->deflink.beacon_stats.avg_signal; 5883 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5884 } 5885 unlock: 5886 mutex_unlock(&mvm->mutex); 5887 } 5888 5889 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5890 struct ieee80211_vif *vif, 5891 const struct ieee80211_mlme_event *mlme) 5892 { 5893 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5894 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5895 iwl_dbg_tlv_time_point(&mvm->fwrt, 5896 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5897 NULL); 5898 return; 5899 } 5900 5901 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5902 iwl_dbg_tlv_time_point(&mvm->fwrt, 5903 IWL_FW_INI_TIME_POINT_DEASSOC, 5904 NULL); 5905 return; 5906 } 5907 } 5908 5909 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5910 struct ieee80211_vif *vif, 5911 const struct ieee80211_event *event) 5912 { 5913 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5914 do { \ 5915 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5916 break; \ 5917 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5918 } while (0) 5919 5920 struct iwl_fw_dbg_trigger_tlv *trig; 5921 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5922 5923 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5924 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5925 return; 5926 } 5927 5928 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5929 FW_DBG_TRIGGER_MLME); 5930 if (!trig) 5931 return; 5932 5933 trig_mlme = (void *)trig->data; 5934 5935 if (event->u.mlme.data == ASSOC_EVENT) { 5936 if (event->u.mlme.status == MLME_DENIED) 5937 CHECK_MLME_TRIGGER(stop_assoc_denied, 5938 "DENIED ASSOC: reason %d", 5939 event->u.mlme.reason); 5940 else if (event->u.mlme.status == MLME_TIMEOUT) 5941 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5942 "ASSOC TIMEOUT"); 5943 } else if (event->u.mlme.data == AUTH_EVENT) { 5944 if (event->u.mlme.status == MLME_DENIED) 5945 CHECK_MLME_TRIGGER(stop_auth_denied, 5946 "DENIED AUTH: reason %d", 5947 event->u.mlme.reason); 5948 else if (event->u.mlme.status == MLME_TIMEOUT) 5949 CHECK_MLME_TRIGGER(stop_auth_timeout, 5950 "AUTH TIMEOUT"); 5951 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5952 CHECK_MLME_TRIGGER(stop_rx_deauth, 5953 "DEAUTH RX %d", event->u.mlme.reason); 5954 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5955 CHECK_MLME_TRIGGER(stop_tx_deauth, 5956 "DEAUTH TX %d", event->u.mlme.reason); 5957 } 5958 #undef CHECK_MLME_TRIGGER 5959 } 5960 5961 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5962 struct ieee80211_vif *vif, 5963 const struct ieee80211_event *event) 5964 { 5965 struct iwl_fw_dbg_trigger_tlv *trig; 5966 struct iwl_fw_dbg_trigger_ba *ba_trig; 5967 5968 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5969 FW_DBG_TRIGGER_BA); 5970 if (!trig) 5971 return; 5972 5973 ba_trig = (void *)trig->data; 5974 5975 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5976 return; 5977 5978 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5979 "BAR received from %pM, tid %d, ssn %d", 5980 event->u.ba.sta->addr, event->u.ba.tid, 5981 event->u.ba.ssn); 5982 } 5983 5984 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5985 struct ieee80211_vif *vif, 5986 const struct ieee80211_event *event) 5987 { 5988 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5989 5990 switch (event->type) { 5991 case MLME_EVENT: 5992 iwl_mvm_event_mlme_callback(mvm, vif, event); 5993 break; 5994 case BAR_RX_EVENT: 5995 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5996 break; 5997 case BA_FRAME_TIMEOUT: 5998 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5999 event->u.ba.tid); 6000 break; 6001 default: 6002 break; 6003 } 6004 } 6005 6006 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6007 enum iwl_mvm_rxq_notif_type type, 6008 bool sync, 6009 const void *data, u32 size) 6010 { 6011 struct { 6012 struct iwl_rxq_sync_cmd cmd; 6013 struct iwl_mvm_internal_rxq_notif notif; 6014 } __packed cmd = { 6015 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6016 .cmd.count = 6017 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6018 size), 6019 .notif.type = type, 6020 .notif.sync = sync, 6021 }; 6022 struct iwl_host_cmd hcmd = { 6023 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6024 .data[0] = &cmd, 6025 .len[0] = sizeof(cmd), 6026 .data[1] = data, 6027 .len[1] = size, 6028 .flags = sync ? 0 : CMD_ASYNC, 6029 }; 6030 int ret; 6031 6032 /* size must be a multiple of DWORD */ 6033 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6034 return; 6035 6036 if (!iwl_mvm_has_new_rx_api(mvm)) 6037 return; 6038 6039 if (sync) { 6040 cmd.notif.cookie = mvm->queue_sync_cookie; 6041 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6042 } 6043 6044 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6045 if (ret) { 6046 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6047 goto out; 6048 } 6049 6050 if (sync) { 6051 lockdep_assert_held(&mvm->mutex); 6052 ret = wait_event_timeout(mvm->rx_sync_waitq, 6053 READ_ONCE(mvm->queue_sync_state) == 0 || 6054 iwl_mvm_is_radio_killed(mvm), 6055 HZ); 6056 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6057 "queue sync: failed to sync, state is 0x%lx\n", 6058 mvm->queue_sync_state); 6059 } 6060 6061 out: 6062 if (sync) { 6063 mvm->queue_sync_state = 0; 6064 mvm->queue_sync_cookie++; 6065 } 6066 } 6067 6068 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6069 { 6070 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6071 6072 mutex_lock(&mvm->mutex); 6073 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6074 mutex_unlock(&mvm->mutex); 6075 } 6076 6077 int 6078 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6079 struct ieee80211_vif *vif, 6080 struct cfg80211_ftm_responder_stats *stats) 6081 { 6082 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6083 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6084 6085 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6086 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6087 return -EINVAL; 6088 6089 mutex_lock(&mvm->mutex); 6090 *stats = mvm->ftm_resp_stats; 6091 mutex_unlock(&mvm->mutex); 6092 6093 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6094 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6095 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6096 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6097 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6098 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6099 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6100 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6101 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6102 6103 return 0; 6104 } 6105 6106 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6107 struct cfg80211_pmsr_request *request) 6108 { 6109 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6110 int ret; 6111 6112 mutex_lock(&mvm->mutex); 6113 ret = iwl_mvm_ftm_start(mvm, vif, request); 6114 mutex_unlock(&mvm->mutex); 6115 6116 return ret; 6117 } 6118 6119 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6120 struct cfg80211_pmsr_request *request) 6121 { 6122 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6123 6124 mutex_lock(&mvm->mutex); 6125 iwl_mvm_ftm_abort(mvm, request); 6126 mutex_unlock(&mvm->mutex); 6127 } 6128 6129 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6130 { 6131 u8 protocol = ip_hdr(skb)->protocol; 6132 6133 if (!IS_ENABLED(CONFIG_INET)) 6134 return false; 6135 6136 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6137 } 6138 6139 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6140 struct sk_buff *head, 6141 struct sk_buff *skb) 6142 { 6143 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6144 6145 if (iwl_mvm_has_new_tx_csum(mvm)) 6146 return iwl_mvm_tx_csum_bz(mvm, head, true) == 6147 iwl_mvm_tx_csum_bz(mvm, skb, true); 6148 6149 /* For now don't aggregate IPv6 in AMSDU */ 6150 if (skb->protocol != htons(ETH_P_IP)) 6151 return false; 6152 6153 if (!iwl_mvm_is_csum_supported(mvm)) 6154 return true; 6155 6156 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6157 } 6158 6159 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6160 struct ieee80211_vif *vif, 6161 struct cfg80211_set_hw_timestamp *hwts) 6162 { 6163 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6164 u32 protocols = 0; 6165 int ret; 6166 6167 /* HW timestamping is only supported for a specific station */ 6168 if (!hwts->macaddr) 6169 return -EOPNOTSUPP; 6170 6171 if (hwts->enable) 6172 protocols = 6173 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6174 6175 mutex_lock(&mvm->mutex); 6176 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6177 mutex_unlock(&mvm->mutex); 6178 6179 return ret; 6180 } 6181 6182 const struct ieee80211_ops iwl_mvm_hw_ops = { 6183 .tx = iwl_mvm_mac_tx, 6184 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6185 .ampdu_action = iwl_mvm_mac_ampdu_action, 6186 .get_antenna = iwl_mvm_op_get_antenna, 6187 .start = iwl_mvm_mac_start, 6188 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6189 .stop = iwl_mvm_mac_stop, 6190 .add_interface = iwl_mvm_mac_add_interface, 6191 .remove_interface = iwl_mvm_mac_remove_interface, 6192 .config = iwl_mvm_mac_config, 6193 .prepare_multicast = iwl_mvm_prepare_multicast, 6194 .configure_filter = iwl_mvm_configure_filter, 6195 .config_iface_filter = iwl_mvm_config_iface_filter, 6196 .bss_info_changed = iwl_mvm_bss_info_changed, 6197 .hw_scan = iwl_mvm_mac_hw_scan, 6198 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6199 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6200 .sta_state = iwl_mvm_mac_sta_state, 6201 .sta_notify = iwl_mvm_mac_sta_notify, 6202 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6203 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6204 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6205 .sta_rc_update = iwl_mvm_sta_rc_update, 6206 .conf_tx = iwl_mvm_mac_conf_tx, 6207 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6208 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6209 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6210 .flush = iwl_mvm_mac_flush, 6211 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6212 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6213 .set_key = iwl_mvm_mac_set_key, 6214 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6215 .remain_on_channel = iwl_mvm_roc, 6216 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6217 .add_chanctx = iwl_mvm_add_chanctx, 6218 .remove_chanctx = iwl_mvm_remove_chanctx, 6219 .change_chanctx = iwl_mvm_change_chanctx, 6220 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6221 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6222 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6223 6224 .start_ap = iwl_mvm_start_ap, 6225 .stop_ap = iwl_mvm_stop_ap, 6226 .join_ibss = iwl_mvm_start_ibss, 6227 .leave_ibss = iwl_mvm_stop_ibss, 6228 6229 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6230 6231 .set_tim = iwl_mvm_set_tim, 6232 6233 .channel_switch = iwl_mvm_channel_switch, 6234 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6235 .post_channel_switch = iwl_mvm_post_channel_switch, 6236 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6237 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6238 6239 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6240 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6241 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6242 6243 .event_callback = iwl_mvm_mac_event_callback, 6244 6245 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6246 6247 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6248 6249 #ifdef CONFIG_PM_SLEEP 6250 /* look at d3.c */ 6251 .suspend = iwl_mvm_suspend, 6252 .resume = iwl_mvm_resume, 6253 .set_wakeup = iwl_mvm_set_wakeup, 6254 .set_rekey_data = iwl_mvm_set_rekey_data, 6255 #if IS_ENABLED(CONFIG_IPV6) 6256 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6257 #endif 6258 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6259 #endif 6260 .get_survey = iwl_mvm_mac_get_survey, 6261 .sta_statistics = iwl_mvm_mac_sta_statistics, 6262 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6263 .start_pmsr = iwl_mvm_start_pmsr, 6264 .abort_pmsr = iwl_mvm_abort_pmsr, 6265 6266 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6267 #ifdef CONFIG_IWLWIFI_DEBUGFS 6268 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 6269 #endif 6270 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6271 }; 6272