1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-eeprom-parse.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_STATION), 37 }, 38 { 39 .max = 1, 40 .types = BIT(NL80211_IFTYPE_AP) | 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | 42 BIT(NL80211_IFTYPE_P2P_GO), 43 }, 44 { 45 .max = 1, 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 47 }, 48 }; 49 50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 51 { 52 .num_different_channels = 2, 53 .max_interfaces = 3, 54 .limits = iwl_mvm_limits, 55 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 56 }, 57 }; 58 59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 60 .max_peers = IWL_MVM_TOF_MAX_APS, 61 .report_ap_tsf = 1, 62 .randomize_mac_addr = 1, 63 64 .ftm = { 65 .supported = 1, 66 .asap = 1, 67 .non_asap = 1, 68 .request_lci = 1, 69 .request_civicloc = 1, 70 .trigger_based = 1, 71 .non_trigger_based = 1, 72 .max_bursts_exponent = -1, /* all supported */ 73 .max_ftms_per_burst = 0, /* no limits */ 74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80) | 78 BIT(NL80211_CHAN_WIDTH_160), 79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 80 BIT(NL80211_PREAMBLE_HT) | 81 BIT(NL80211_PREAMBLE_VHT) | 82 BIT(NL80211_PREAMBLE_HE), 83 }, 84 }; 85 86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 87 enum set_key_cmd cmd, 88 struct ieee80211_vif *vif, 89 struct ieee80211_sta *sta, 90 struct ieee80211_key_conf *key); 91 92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 93 { 94 int i; 95 96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 97 for (i = 0; i < NUM_PHY_CTX; i++) { 98 mvm->phy_ctxts[i].id = i; 99 mvm->phy_ctxts[i].ref = 0; 100 } 101 } 102 103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 104 const char *alpha2, 105 enum iwl_mcc_source src_id, 106 bool *changed) 107 { 108 struct ieee80211_regdomain *regd = NULL; 109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 111 struct iwl_mcc_update_resp_v8 *resp; 112 u8 resp_ver; 113 114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 115 116 lockdep_assert_held(&mvm->mutex); 117 118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 119 if (IS_ERR_OR_NULL(resp)) { 120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 121 PTR_ERR_OR_ZERO(resp)); 122 resp = NULL; 123 goto out; 124 } 125 126 if (changed) { 127 u32 status = le32_to_cpu(resp->status); 128 129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 130 status == MCC_RESP_ILLEGAL); 131 } 132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 133 MCC_UPDATE_CMD, 0); 134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 135 136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 137 __le32_to_cpu(resp->n_channels), 138 resp->channels, 139 __le16_to_cpu(resp->mcc), 140 __le16_to_cpu(resp->geo_info), 141 le32_to_cpu(resp->cap), resp_ver); 142 /* Store the return source id */ 143 src_id = resp->source_id; 144 if (IS_ERR_OR_NULL(regd)) { 145 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 146 PTR_ERR_OR_ZERO(regd)); 147 goto out; 148 } 149 150 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 151 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 152 mvm->lar_regdom_set = true; 153 mvm->mcc_src = src_id; 154 155 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 156 157 out: 158 kfree(resp); 159 return regd; 160 } 161 162 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 163 { 164 bool changed; 165 struct ieee80211_regdomain *regd; 166 167 if (!iwl_mvm_is_lar_supported(mvm)) 168 return; 169 170 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 171 if (!IS_ERR_OR_NULL(regd)) { 172 /* only update the regulatory core if changed */ 173 if (changed) 174 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 175 176 kfree(regd); 177 } 178 } 179 180 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 181 bool *changed) 182 { 183 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 184 iwl_mvm_is_wifi_mcc_supported(mvm) ? 185 MCC_SOURCE_GET_CURRENT : 186 MCC_SOURCE_OLD_FW, changed); 187 } 188 189 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 190 { 191 enum iwl_mcc_source used_src; 192 struct ieee80211_regdomain *regd; 193 int ret; 194 bool changed; 195 const struct ieee80211_regdomain *r = 196 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 197 198 if (!r) 199 return -ENOENT; 200 201 /* save the last source in case we overwrite it below */ 202 used_src = mvm->mcc_src; 203 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 204 /* Notify the firmware we support wifi location updates */ 205 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 206 if (!IS_ERR_OR_NULL(regd)) 207 kfree(regd); 208 } 209 210 /* Now set our last stored MCC and source */ 211 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 212 &changed); 213 if (IS_ERR_OR_NULL(regd)) 214 return -EIO; 215 216 /* update cfg80211 if the regdomain was changed */ 217 if (changed) 218 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 219 else 220 ret = 0; 221 222 kfree(regd); 223 return ret; 224 } 225 226 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 227 static const u8 he_if_types_ext_capa_sta[] = { 228 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 229 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 230 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 231 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 232 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 233 }; 234 235 static const u8 tm_if_types_ext_capa_sta[] = { 236 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 237 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 238 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 239 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 240 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 241 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 242 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 243 }; 244 245 /* Additional interface types for which extended capabilities are 246 * specified separately 247 */ 248 249 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 250 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 251 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 252 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 253 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 254 255 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 256 { 257 .iftype = NL80211_IFTYPE_STATION, 258 .extended_capabilities = he_if_types_ext_capa_sta, 259 .extended_capabilities_mask = he_if_types_ext_capa_sta, 260 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 261 /* relevant only if EHT is supported */ 262 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 263 }, 264 { 265 .iftype = NL80211_IFTYPE_STATION, 266 .extended_capabilities = tm_if_types_ext_capa_sta, 267 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 268 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 269 /* relevant only if EHT is supported */ 270 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 271 }, 272 }; 273 274 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 275 { 276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 277 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 278 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 279 return 0; 280 } 281 282 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 283 { 284 struct ieee80211_hw *hw = mvm->hw; 285 int num_mac, ret, i; 286 static const u32 mvm_ciphers[] = { 287 WLAN_CIPHER_SUITE_WEP40, 288 WLAN_CIPHER_SUITE_WEP104, 289 WLAN_CIPHER_SUITE_TKIP, 290 WLAN_CIPHER_SUITE_CCMP, 291 }; 292 #ifdef CONFIG_PM_SLEEP 293 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 294 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 295 #endif 296 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 297 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 298 299 /* Tell mac80211 our characteristics */ 300 ieee80211_hw_set(hw, SIGNAL_DBM); 301 ieee80211_hw_set(hw, SPECTRUM_MGMT); 302 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 303 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 304 ieee80211_hw_set(hw, SUPPORTS_PS); 305 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 306 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 307 ieee80211_hw_set(hw, CONNECTION_MONITOR); 308 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 309 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 310 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 311 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 312 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 313 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 314 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 315 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 316 317 /* Set this early since we need to have it for the check below */ 318 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 319 !iwlwifi_mod_params.disable_11ax && 320 !iwlwifi_mod_params.disable_11be) 321 hw->wiphy->flags |= WIPHY_FLAG_DISABLE_WEXT; 322 323 /* With MLD FW API, it tracks timing by itself, 324 * no need for any timing from the host 325 */ 326 if (!mvm->mld_api_is_used) 327 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 328 329 /* We should probably have this, but mac80211 330 * currently doesn't support it for MLO. 331 */ 332 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 333 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 334 335 /* 336 * On older devices, enabling TX A-MSDU occasionally leads to 337 * something getting messed up, the command read from the FIFO 338 * gets out of sync and isn't a TX command, so that we have an 339 * assert EDC. 340 * 341 * It's not clear where the bug is, but since we didn't used to 342 * support A-MSDU until moving the mac80211 iTXQs, just leave it 343 * for older devices. We also don't see this issue on any newer 344 * devices. 345 */ 346 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 347 ieee80211_hw_set(hw, TX_AMSDU); 348 ieee80211_hw_set(hw, TX_FRAG_LIST); 349 350 if (iwl_mvm_has_tlc_offload(mvm)) { 351 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 352 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 353 } 354 355 /* We want to use the mac80211's reorder buffer for 9000 */ 356 if (iwl_mvm_has_new_rx_api(mvm) && 357 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 358 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 359 360 if (fw_has_capa(&mvm->fw->ucode_capa, 361 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 362 ieee80211_hw_set(hw, AP_LINK_PS); 363 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 364 /* 365 * we absolutely need this for the new TX API since that comes 366 * with many more queues than the current code can deal with 367 * for station powersave 368 */ 369 return -EINVAL; 370 } 371 372 if (mvm->trans->num_rx_queues > 1) 373 ieee80211_hw_set(hw, USES_RSS); 374 375 if (mvm->trans->max_skb_frags) 376 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 377 378 hw->queues = IEEE80211_NUM_ACS; 379 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 380 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 381 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 382 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 383 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 384 385 hw->radiotap_timestamp.units_pos = 386 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 387 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 388 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 389 hw->radiotap_timestamp.accuracy = 22; 390 391 if (!iwl_mvm_has_tlc_offload(mvm)) 392 hw->rate_control_algorithm = RS_NAME; 393 394 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 395 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 396 hw->max_tx_fragments = mvm->trans->max_skb_frags; 397 398 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 399 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 400 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 401 hw->wiphy->cipher_suites = mvm->ciphers; 402 403 if (iwl_mvm_has_new_rx_api(mvm)) { 404 mvm->ciphers[hw->wiphy->n_cipher_suites] = 405 WLAN_CIPHER_SUITE_GCMP; 406 hw->wiphy->n_cipher_suites++; 407 mvm->ciphers[hw->wiphy->n_cipher_suites] = 408 WLAN_CIPHER_SUITE_GCMP_256; 409 hw->wiphy->n_cipher_suites++; 410 } 411 412 if (iwlwifi_mod_params.swcrypto) 413 IWL_ERR(mvm, 414 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 415 if (!iwlwifi_mod_params.bt_coex_active) 416 IWL_ERR(mvm, 417 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 418 419 ieee80211_hw_set(hw, MFP_CAPABLE); 420 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 421 hw->wiphy->n_cipher_suites++; 422 if (iwl_mvm_has_new_rx_api(mvm)) { 423 mvm->ciphers[hw->wiphy->n_cipher_suites] = 424 WLAN_CIPHER_SUITE_BIP_GMAC_128; 425 hw->wiphy->n_cipher_suites++; 426 mvm->ciphers[hw->wiphy->n_cipher_suites] = 427 WLAN_CIPHER_SUITE_BIP_GMAC_256; 428 hw->wiphy->n_cipher_suites++; 429 } 430 431 wiphy_ext_feature_set(hw->wiphy, 432 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 433 wiphy_ext_feature_set(hw->wiphy, 434 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 435 436 if (fw_has_capa(&mvm->fw->ucode_capa, 437 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 438 wiphy_ext_feature_set(hw->wiphy, 439 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 440 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 441 } 442 443 if (sec_key_ver && 444 fw_has_capa(&mvm->fw->ucode_capa, 445 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 446 wiphy_ext_feature_set(hw->wiphy, 447 NL80211_EXT_FEATURE_BEACON_PROTECTION); 448 else if (fw_has_capa(&mvm->fw->ucode_capa, 449 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 450 wiphy_ext_feature_set(hw->wiphy, 451 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 452 453 if (fw_has_capa(&mvm->fw->ucode_capa, 454 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 455 hw->wiphy->hw_timestamp_max_peers = 1; 456 457 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 458 hw->wiphy->features |= 459 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 460 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 461 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 462 463 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 464 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 465 hw->chanctx_data_size = sizeof(u16); 466 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 467 468 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 469 BIT(NL80211_IFTYPE_P2P_CLIENT) | 470 BIT(NL80211_IFTYPE_AP) | 471 BIT(NL80211_IFTYPE_P2P_GO) | 472 BIT(NL80211_IFTYPE_P2P_DEVICE) | 473 BIT(NL80211_IFTYPE_ADHOC); 474 475 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 476 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 477 478 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 479 * the hw, preventing us to control which key(id) to use per MPDU. 480 * Till that's fixed we can't use Extended Key ID for the newer cards. 481 */ 482 if (!iwl_mvm_has_new_tx_api(mvm)) 483 wiphy_ext_feature_set(hw->wiphy, 484 NL80211_EXT_FEATURE_EXT_KEY_ID); 485 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 486 487 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 488 if (iwl_mvm_is_lar_supported(mvm)) 489 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 490 else 491 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 492 REGULATORY_DISABLE_BEACON_HINTS; 493 494 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 495 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 496 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 497 498 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 499 hw->wiphy->n_iface_combinations = 500 ARRAY_SIZE(iwl_mvm_iface_combinations); 501 502 hw->wiphy->max_remain_on_channel_duration = 10000; 503 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 504 505 /* Extract MAC address */ 506 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 507 hw->wiphy->addresses = mvm->addresses; 508 hw->wiphy->n_addresses = 1; 509 510 /* Extract additional MAC addresses if available */ 511 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 512 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 513 514 for (i = 1; i < num_mac; i++) { 515 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 516 ETH_ALEN); 517 mvm->addresses[i].addr[5]++; 518 hw->wiphy->n_addresses++; 519 } 520 521 iwl_mvm_reset_phy_ctxts(mvm); 522 523 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 524 525 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 526 527 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 528 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 529 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 530 531 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 532 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 533 else 534 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 535 536 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 537 hw->wiphy->bands[NL80211_BAND_2GHZ] = 538 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 539 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 540 hw->wiphy->bands[NL80211_BAND_5GHZ] = 541 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 542 543 if (fw_has_capa(&mvm->fw->ucode_capa, 544 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 545 fw_has_api(&mvm->fw->ucode_capa, 546 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 547 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 548 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 549 } 550 if (fw_has_capa(&mvm->fw->ucode_capa, 551 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 552 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 553 hw->wiphy->bands[NL80211_BAND_6GHZ] = 554 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 555 556 hw->wiphy->hw_version = mvm->trans->hw_id; 557 558 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 559 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 560 else 561 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 562 563 hw->wiphy->max_sched_scan_reqs = 1; 564 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 565 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 566 /* we create the 802.11 header and zero length SSID IE. */ 567 hw->wiphy->max_sched_scan_ie_len = 568 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 569 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 570 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 571 572 /* 573 * the firmware uses u8 for num of iterations, but 0xff is saved for 574 * infinite loop, so the maximum number of iterations is actually 254. 575 */ 576 hw->wiphy->max_sched_scan_plan_iterations = 254; 577 578 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 579 NL80211_FEATURE_LOW_PRIORITY_SCAN | 580 NL80211_FEATURE_P2P_GO_OPPPS | 581 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 582 NL80211_FEATURE_DYNAMIC_SMPS | 583 NL80211_FEATURE_STATIC_SMPS | 584 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 585 586 if (fw_has_capa(&mvm->fw->ucode_capa, 587 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 588 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 589 if (fw_has_capa(&mvm->fw->ucode_capa, 590 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 591 hw->wiphy->features |= NL80211_FEATURE_QUIET; 592 593 if (fw_has_capa(&mvm->fw->ucode_capa, 594 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 595 hw->wiphy->features |= 596 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 597 598 if (fw_has_capa(&mvm->fw->ucode_capa, 599 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 600 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 601 602 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 603 IWL_FW_CMD_VER_UNKNOWN) == 3) 604 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 605 606 if (fw_has_api(&mvm->fw->ucode_capa, 607 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 608 wiphy_ext_feature_set(hw->wiphy, 609 NL80211_EXT_FEATURE_SCAN_START_TIME); 610 wiphy_ext_feature_set(hw->wiphy, 611 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 612 } 613 614 if (iwl_mvm_is_oce_supported(mvm)) { 615 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 616 617 wiphy_ext_feature_set(hw->wiphy, 618 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 619 wiphy_ext_feature_set(hw->wiphy, 620 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 621 wiphy_ext_feature_set(hw->wiphy, 622 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 623 624 /* Old firmware also supports probe deferral and suppression */ 625 if (scan_ver < 15) 626 wiphy_ext_feature_set(hw->wiphy, 627 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 628 } 629 630 hw->wiphy->iftype_ext_capab = NULL; 631 hw->wiphy->num_iftype_ext_capab = 0; 632 633 if (mvm->nvm_data->sku_cap_11ax_enable && 634 !iwlwifi_mod_params.disable_11ax) { 635 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 636 hw->wiphy->num_iftype_ext_capab = 637 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 638 639 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 640 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 641 } 642 643 if (iwl_fw_lookup_cmd_ver(mvm->fw, 644 WIDE_ID(DATA_PATH_GROUP, 645 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 646 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 647 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 648 649 if (!hw->wiphy->iftype_ext_capab) { 650 hw->wiphy->num_iftype_ext_capab = 1; 651 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 652 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 653 } else { 654 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 655 } 656 } 657 658 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 659 660 #ifdef CONFIG_PM_SLEEP 661 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 662 mvm->trans->ops->d3_suspend && 663 mvm->trans->ops->d3_resume && 664 device_can_wakeup(mvm->trans->dev)) { 665 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 666 WIPHY_WOWLAN_DISCONNECT | 667 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 668 WIPHY_WOWLAN_RFKILL_RELEASE | 669 WIPHY_WOWLAN_NET_DETECT; 670 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 671 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 672 WIPHY_WOWLAN_4WAY_HANDSHAKE; 673 674 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 675 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 676 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 677 mvm->wowlan.max_nd_match_sets = 678 iwl_umac_scan_get_max_profiles(mvm->fw); 679 hw->wiphy->wowlan = &mvm->wowlan; 680 } 681 #endif 682 683 ret = iwl_mvm_leds_init(mvm); 684 if (ret) 685 return ret; 686 687 if (fw_has_capa(&mvm->fw->ucode_capa, 688 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 689 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 690 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 691 ieee80211_hw_set(hw, TDLS_WIDER_BW); 692 } 693 694 if (fw_has_capa(&mvm->fw->ucode_capa, 695 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 696 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 697 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 698 } 699 700 hw->netdev_features |= mvm->cfg->features; 701 if (!iwl_mvm_is_csum_supported(mvm)) 702 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 703 704 if (mvm->cfg->vht_mu_mimo_supported) 705 wiphy_ext_feature_set(hw->wiphy, 706 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 707 708 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 709 wiphy_ext_feature_set(hw->wiphy, 710 NL80211_EXT_FEATURE_PROTECTED_TWT); 711 712 iwl_mvm_vendor_cmds_register(mvm); 713 714 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 715 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 716 717 ret = ieee80211_register_hw(mvm->hw); 718 if (ret) { 719 iwl_mvm_leds_exit(mvm); 720 } 721 722 return ret; 723 } 724 725 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 726 struct ieee80211_sta *sta) 727 { 728 if (likely(sta)) { 729 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 730 return; 731 } else { 732 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 733 return; 734 } 735 736 ieee80211_free_txskb(mvm->hw, skb); 737 } 738 739 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 740 struct ieee80211_tx_control *control, struct sk_buff *skb) 741 { 742 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 743 struct ieee80211_sta *sta = control->sta; 744 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 745 struct ieee80211_hdr *hdr = (void *)skb->data; 746 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 747 IEEE80211_TX_CTL_TX_OFFCHAN; 748 u32 link_id = u32_get_bits(info->control.flags, 749 IEEE80211_TX_CTRL_MLO_LINK); 750 struct ieee80211_sta *tmp_sta = sta; 751 752 if (iwl_mvm_is_radio_killed(mvm)) { 753 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 754 goto drop; 755 } 756 757 if (offchannel && 758 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 759 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 760 goto drop; 761 762 /* 763 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 764 * so we treat the others as broadcast 765 */ 766 if (ieee80211_is_mgmt(hdr->frame_control)) 767 sta = NULL; 768 769 /* If there is no sta, and it's not offchannel - send through AP */ 770 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 771 !offchannel) { 772 struct iwl_mvm_vif *mvmvif = 773 iwl_mvm_vif_from_mac80211(info->control.vif); 774 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 775 776 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 777 /* mac80211 holds rcu read lock */ 778 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 779 if (IS_ERR_OR_NULL(sta)) 780 goto drop; 781 } 782 } 783 784 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 785 !ieee80211_is_probe_resp(hdr->frame_control)) { 786 /* translate MLD addresses to LINK addresses */ 787 struct ieee80211_link_sta *link_sta = 788 rcu_dereference(tmp_sta->link[link_id]); 789 struct ieee80211_bss_conf *link_conf = 790 rcu_dereference(info->control.vif->link_conf[link_id]); 791 struct ieee80211_mgmt *mgmt; 792 793 if (WARN_ON(!link_sta || !link_conf)) 794 goto drop; 795 796 /* if sta is NULL, the frame is a management frame */ 797 mgmt = (void *)hdr; 798 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 799 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 800 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 801 } 802 803 iwl_mvm_tx_skb(mvm, skb, sta); 804 return; 805 drop: 806 ieee80211_free_txskb(hw, skb); 807 } 808 809 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 810 { 811 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 812 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 813 struct sk_buff *skb = NULL; 814 815 /* 816 * No need for threads to be pending here, they can leave the first 817 * taker all the work. 818 * 819 * mvmtxq->tx_request logic: 820 * 821 * If 0, no one is currently TXing, set to 1 to indicate current thread 822 * will now start TX and other threads should quit. 823 * 824 * If 1, another thread is currently TXing, set to 2 to indicate to 825 * that thread that there was another request. Since that request may 826 * have raced with the check whether the queue is empty, the TXing 827 * thread should check the queue's status one more time before leaving. 828 * This check is done in order to not leave any TX hanging in the queue 829 * until the next TX invocation (which may not even happen). 830 * 831 * If 2, another thread is currently TXing, and it will already double 832 * check the queue, so do nothing. 833 */ 834 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 835 return; 836 837 rcu_read_lock(); 838 do { 839 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 840 &mvmtxq->state) && 841 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 842 &mvmtxq->state) && 843 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 844 skb = ieee80211_tx_dequeue(hw, txq); 845 846 if (!skb) { 847 if (txq->sta) 848 IWL_DEBUG_TX(mvm, 849 "TXQ of sta %pM tid %d is now empty\n", 850 txq->sta->addr, 851 txq->tid); 852 break; 853 } 854 855 iwl_mvm_tx_skb(mvm, skb, txq->sta); 856 } 857 } while (atomic_dec_return(&mvmtxq->tx_request)); 858 rcu_read_unlock(); 859 } 860 861 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 862 struct ieee80211_txq *txq) 863 { 864 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 865 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 866 867 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 868 !txq->sta) { 869 iwl_mvm_mac_itxq_xmit(hw, txq); 870 return; 871 } 872 873 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 874 * to handle any packets we leave on the txq now 875 */ 876 877 spin_lock_bh(&mvm->add_stream_lock); 878 /* The list is being deleted only after the queue is fully allocated. */ 879 if (list_empty(&mvmtxq->list) && 880 /* recheck under lock */ 881 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 882 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 883 schedule_work(&mvm->add_stream_wk); 884 } 885 spin_unlock_bh(&mvm->add_stream_lock); 886 } 887 888 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 889 do { \ 890 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 891 break; \ 892 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 893 } while (0) 894 895 static void 896 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 897 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 898 enum ieee80211_ampdu_mlme_action action) 899 { 900 struct iwl_fw_dbg_trigger_tlv *trig; 901 struct iwl_fw_dbg_trigger_ba *ba_trig; 902 903 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 904 FW_DBG_TRIGGER_BA); 905 if (!trig) 906 return; 907 908 ba_trig = (void *)trig->data; 909 910 switch (action) { 911 case IEEE80211_AMPDU_TX_OPERATIONAL: { 912 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 913 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 914 915 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 916 "TX AGG START: MAC %pM tid %d ssn %d\n", 917 sta->addr, tid, tid_data->ssn); 918 break; 919 } 920 case IEEE80211_AMPDU_TX_STOP_CONT: 921 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 922 "TX AGG STOP: MAC %pM tid %d\n", 923 sta->addr, tid); 924 break; 925 case IEEE80211_AMPDU_RX_START: 926 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 927 "RX AGG START: MAC %pM tid %d ssn %d\n", 928 sta->addr, tid, rx_ba_ssn); 929 break; 930 case IEEE80211_AMPDU_RX_STOP: 931 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 932 "RX AGG STOP: MAC %pM tid %d\n", 933 sta->addr, tid); 934 break; 935 default: 936 break; 937 } 938 } 939 940 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 941 struct ieee80211_vif *vif, 942 struct ieee80211_ampdu_params *params) 943 { 944 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 945 int ret; 946 struct ieee80211_sta *sta = params->sta; 947 enum ieee80211_ampdu_mlme_action action = params->action; 948 u16 tid = params->tid; 949 u16 *ssn = ¶ms->ssn; 950 u16 buf_size = params->buf_size; 951 bool amsdu = params->amsdu; 952 u16 timeout = params->timeout; 953 954 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 955 sta->addr, tid, action); 956 957 if (!(mvm->nvm_data->sku_cap_11n_enable)) 958 return -EACCES; 959 960 mutex_lock(&mvm->mutex); 961 962 switch (action) { 963 case IEEE80211_AMPDU_RX_START: 964 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 965 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 966 struct iwl_mvm_vif *mvmvif; 967 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 968 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 969 970 mdata->opened_rx_ba_sessions = true; 971 mvmvif = iwl_mvm_vif_from_mac80211(vif); 972 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 973 } 974 if (!iwl_enable_rx_ampdu()) { 975 ret = -EINVAL; 976 break; 977 } 978 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 979 timeout); 980 break; 981 case IEEE80211_AMPDU_RX_STOP: 982 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 983 timeout); 984 break; 985 case IEEE80211_AMPDU_TX_START: 986 if (!iwl_enable_tx_ampdu()) { 987 ret = -EINVAL; 988 break; 989 } 990 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 991 break; 992 case IEEE80211_AMPDU_TX_STOP_CONT: 993 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 994 break; 995 case IEEE80211_AMPDU_TX_STOP_FLUSH: 996 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 997 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 998 break; 999 case IEEE80211_AMPDU_TX_OPERATIONAL: 1000 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1001 buf_size, amsdu); 1002 break; 1003 default: 1004 WARN_ON_ONCE(1); 1005 ret = -EINVAL; 1006 break; 1007 } 1008 1009 if (!ret) { 1010 u16 rx_ba_ssn = 0; 1011 1012 if (action == IEEE80211_AMPDU_RX_START) 1013 rx_ba_ssn = *ssn; 1014 1015 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1016 rx_ba_ssn, action); 1017 } 1018 mutex_unlock(&mvm->mutex); 1019 1020 return ret; 1021 } 1022 1023 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1024 struct ieee80211_vif *vif) 1025 { 1026 struct iwl_mvm *mvm = data; 1027 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1028 struct iwl_probe_resp_data *probe_data; 1029 unsigned int link_id; 1030 1031 mvmvif->uploaded = false; 1032 1033 spin_lock_bh(&mvm->time_event_lock); 1034 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1035 spin_unlock_bh(&mvm->time_event_lock); 1036 1037 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1038 1039 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1040 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1041 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1042 mvmvif->link[link_id]->phy_ctxt = NULL; 1043 mvmvif->link[link_id]->active = 0; 1044 mvmvif->link[link_id]->igtk = NULL; 1045 } 1046 1047 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1048 lockdep_is_held(&mvm->mutex)); 1049 if (probe_data) 1050 kfree_rcu(probe_data, rcu_head); 1051 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1052 } 1053 1054 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1055 { 1056 iwl_mvm_stop_device(mvm); 1057 1058 mvm->cur_aid = 0; 1059 1060 mvm->scan_status = 0; 1061 mvm->ps_disabled = false; 1062 mvm->rfkill_safe_init_done = false; 1063 1064 /* just in case one was running */ 1065 iwl_mvm_cleanup_roc_te(mvm); 1066 ieee80211_remain_on_channel_expired(mvm->hw); 1067 1068 iwl_mvm_ftm_restart(mvm); 1069 1070 /* 1071 * cleanup all interfaces, even inactive ones, as some might have 1072 * gone down during the HW restart 1073 */ 1074 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1075 1076 mvm->p2p_device_vif = NULL; 1077 1078 iwl_mvm_reset_phy_ctxts(mvm); 1079 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1080 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1081 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1082 1083 ieee80211_wake_queues(mvm->hw); 1084 1085 mvm->rx_ba_sessions = 0; 1086 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1087 mvm->monitor_on = false; 1088 #ifdef CONFIG_IWLWIFI_DEBUGFS 1089 mvm->beacon_inject_active = false; 1090 #endif 1091 1092 /* keep statistics ticking */ 1093 iwl_mvm_accu_radio_stats(mvm); 1094 } 1095 1096 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1097 { 1098 int ret; 1099 1100 lockdep_assert_held(&mvm->mutex); 1101 1102 ret = iwl_mvm_mei_get_ownership(mvm); 1103 if (ret) 1104 return ret; 1105 1106 if (mvm->mei_nvm_data) { 1107 /* We got the NIC, we can now free the MEI NVM data */ 1108 kfree(mvm->mei_nvm_data); 1109 mvm->mei_nvm_data = NULL; 1110 1111 /* 1112 * We can't free the nvm_data we allocated based on the SAP 1113 * data because we registered to cfg80211 with the channels 1114 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1115 * just in order to be able free it later. 1116 * NULLify nvm_data so that we will read the NVM from the 1117 * firmware this time. 1118 */ 1119 mvm->temp_nvm_data = mvm->nvm_data; 1120 mvm->nvm_data = NULL; 1121 } 1122 1123 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1124 /* 1125 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1126 * so later code will - from now on - see that we're doing it. 1127 */ 1128 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1129 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1130 /* Clean up some internal and mac80211 state on restart */ 1131 iwl_mvm_restart_cleanup(mvm); 1132 } 1133 ret = iwl_mvm_up(mvm); 1134 1135 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1136 NULL); 1137 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1138 NULL); 1139 1140 mvm->last_reset_or_resume_time_jiffies = jiffies; 1141 1142 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1143 /* Something went wrong - we need to finish some cleanup 1144 * that normally iwl_mvm_mac_restart_complete() below 1145 * would do. 1146 */ 1147 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1148 } 1149 1150 return ret; 1151 } 1152 1153 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1154 { 1155 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1156 int ret; 1157 int retry, max_retry = 0; 1158 1159 mutex_lock(&mvm->mutex); 1160 1161 /* we are starting the mac not in error flow, and restart is enabled */ 1162 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1163 iwlwifi_mod_params.fw_restart) { 1164 max_retry = IWL_MAX_INIT_RETRY; 1165 /* 1166 * This will prevent mac80211 recovery flows to trigger during 1167 * init failures 1168 */ 1169 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1170 } 1171 1172 for (retry = 0; retry <= max_retry; retry++) { 1173 ret = __iwl_mvm_mac_start(mvm); 1174 if (!ret) 1175 break; 1176 1177 /* 1178 * In PLDR sync PCI re-enumeration is needed. no point to retry 1179 * mac start before that. 1180 */ 1181 if (mvm->pldr_sync) { 1182 iwl_mei_alive_notif(false); 1183 iwl_trans_pcie_remove(mvm->trans, true); 1184 break; 1185 } 1186 1187 IWL_ERR(mvm, "mac start retry %d\n", retry); 1188 } 1189 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1190 1191 mutex_unlock(&mvm->mutex); 1192 1193 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1194 1195 return ret; 1196 } 1197 1198 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1199 { 1200 int ret; 1201 1202 mutex_lock(&mvm->mutex); 1203 1204 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1205 1206 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1207 if (ret) 1208 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1209 ret); 1210 1211 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1212 1213 /* 1214 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1215 * of packets the FW sent out, so we must reconnect. 1216 */ 1217 iwl_mvm_teardown_tdls_peers(mvm); 1218 1219 mutex_unlock(&mvm->mutex); 1220 } 1221 1222 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1223 enum ieee80211_reconfig_type reconfig_type) 1224 { 1225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1226 1227 switch (reconfig_type) { 1228 case IEEE80211_RECONFIG_TYPE_RESTART: 1229 iwl_mvm_restart_complete(mvm); 1230 break; 1231 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1232 break; 1233 } 1234 } 1235 1236 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1237 { 1238 lockdep_assert_held(&mvm->mutex); 1239 1240 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1241 1242 /* firmware counters are obviously reset now, but we shouldn't 1243 * partially track so also clear the fw_reset_accu counters. 1244 */ 1245 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1246 1247 /* async_handlers_wk is now blocked */ 1248 1249 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1250 iwl_mvm_rm_aux_sta(mvm); 1251 1252 iwl_mvm_stop_device(mvm); 1253 1254 iwl_mvm_async_handlers_purge(mvm); 1255 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1256 1257 /* 1258 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1259 * hw (as restart_complete() won't be called in this case) and mac80211 1260 * won't execute the restart. 1261 * But make sure to cleanup interfaces that have gone down before/during 1262 * HW restart was requested. 1263 */ 1264 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1265 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1266 &mvm->status)) 1267 ieee80211_iterate_interfaces(mvm->hw, 0, 1268 iwl_mvm_cleanup_iterator, mvm); 1269 1270 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1271 * make sure there's nothing left there and warn if any is found. 1272 */ 1273 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1274 int i; 1275 1276 for (i = 0; i < mvm->max_scans; i++) { 1277 if (WARN_ONCE(mvm->scan_uid_status[i], 1278 "UMAC scan UID %d status was not cleaned\n", 1279 i)) 1280 mvm->scan_uid_status[i] = 0; 1281 } 1282 } 1283 } 1284 1285 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1286 { 1287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1288 1289 flush_work(&mvm->async_handlers_wk); 1290 flush_work(&mvm->add_stream_wk); 1291 1292 /* 1293 * Lock and clear the firmware running bit here already, so that 1294 * new commands coming in elsewhere, e.g. from debugfs, will not 1295 * be able to proceed. This is important here because one of those 1296 * debugfs files causes the firmware dump to be triggered, and if we 1297 * don't stop debugfs accesses before canceling that it could be 1298 * retriggered after we flush it but before we've cleared the bit. 1299 */ 1300 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1301 1302 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1303 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1304 1305 /* 1306 * The work item could be running or queued if the 1307 * ROC time event stops just as we get here. 1308 */ 1309 flush_work(&mvm->roc_done_wk); 1310 1311 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1312 1313 mutex_lock(&mvm->mutex); 1314 __iwl_mvm_mac_stop(mvm); 1315 mutex_unlock(&mvm->mutex); 1316 1317 /* 1318 * The worker might have been waiting for the mutex, let it run and 1319 * discover that its list is now empty. 1320 */ 1321 cancel_work_sync(&mvm->async_handlers_wk); 1322 } 1323 1324 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1325 { 1326 u16 i; 1327 1328 lockdep_assert_held(&mvm->mutex); 1329 1330 for (i = 0; i < NUM_PHY_CTX; i++) 1331 if (!mvm->phy_ctxts[i].ref) 1332 return &mvm->phy_ctxts[i]; 1333 1334 IWL_ERR(mvm, "No available PHY context\n"); 1335 return NULL; 1336 } 1337 1338 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1339 s16 tx_power) 1340 { 1341 u32 cmd_id = REDUCE_TX_POWER_CMD; 1342 int len; 1343 struct iwl_dev_tx_power_cmd cmd = { 1344 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1345 .common.mac_context_id = 1346 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1347 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1348 }; 1349 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1350 IWL_FW_CMD_VER_UNKNOWN); 1351 1352 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1353 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1354 1355 if (cmd_ver == 7) 1356 len = sizeof(cmd.v7); 1357 else if (cmd_ver == 6) 1358 len = sizeof(cmd.v6); 1359 else if (fw_has_api(&mvm->fw->ucode_capa, 1360 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1361 len = sizeof(cmd.v5); 1362 else if (fw_has_capa(&mvm->fw->ucode_capa, 1363 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1364 len = sizeof(cmd.v4); 1365 else 1366 len = sizeof(cmd.v3); 1367 1368 /* all structs have the same common part, add it */ 1369 len += sizeof(cmd.common); 1370 1371 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1372 } 1373 1374 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1375 struct ieee80211_vif *vif) 1376 { 1377 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1378 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1379 int ret; 1380 1381 mutex_lock(&mvm->mutex); 1382 1383 if (vif->type == NL80211_IFTYPE_STATION) { 1384 struct iwl_mvm_sta *mvmsta; 1385 1386 mvmvif->csa_bcn_pending = false; 1387 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1388 mvmvif->deflink.ap_sta_id); 1389 1390 if (WARN_ON(!mvmsta)) { 1391 ret = -EIO; 1392 goto out_unlock; 1393 } 1394 1395 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1396 if (mvm->mld_api_is_used) 1397 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1398 else 1399 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1400 1401 if (!fw_has_capa(&mvm->fw->ucode_capa, 1402 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1403 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1404 if (ret) 1405 goto out_unlock; 1406 1407 iwl_mvm_stop_session_protection(mvm, vif); 1408 } 1409 } 1410 1411 mvmvif->ps_disabled = false; 1412 1413 ret = iwl_mvm_power_update_ps(mvm); 1414 1415 out_unlock: 1416 if (mvmvif->csa_failed) 1417 ret = -EIO; 1418 mutex_unlock(&mvm->mutex); 1419 1420 return ret; 1421 } 1422 1423 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1424 struct ieee80211_vif *vif) 1425 { 1426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1428 struct iwl_chan_switch_te_cmd cmd = { 1429 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1430 mvmvif->color)), 1431 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1432 }; 1433 1434 /* 1435 * In the new flow since FW is in charge of the timing, 1436 * if driver has canceled the channel switch he will receive the 1437 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1438 */ 1439 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1440 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1441 return; 1442 1443 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1444 1445 mutex_lock(&mvm->mutex); 1446 if (!fw_has_capa(&mvm->fw->ucode_capa, 1447 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1448 iwl_mvm_remove_csa_period(mvm, vif); 1449 else 1450 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1451 WIDE_ID(MAC_CONF_GROUP, 1452 CHANNEL_SWITCH_TIME_EVENT_CMD), 1453 0, sizeof(cmd), &cmd)); 1454 mvmvif->csa_failed = true; 1455 mutex_unlock(&mvm->mutex); 1456 1457 iwl_mvm_post_channel_switch(hw, vif); 1458 } 1459 1460 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1461 { 1462 struct iwl_mvm_vif *mvmvif; 1463 struct ieee80211_vif *vif; 1464 1465 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1466 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1467 1468 /* Trigger disconnect (should clear the CSA state) */ 1469 ieee80211_chswitch_done(vif, false); 1470 } 1471 1472 static u8 1473 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1474 { 1475 int data_start; 1476 int control_start; 1477 int bw; 1478 1479 if (chandef->width == NL80211_CHAN_WIDTH_320) 1480 bw = 320; 1481 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1482 bw = 160; 1483 else 1484 return 0; 1485 1486 /* data is bw wide so the start is half the width */ 1487 data_start = chandef->center_freq1 - bw / 2; 1488 /* control is 20Mhz width */ 1489 control_start = chandef->chan->center_freq - 10; 1490 1491 return (control_start - data_start) / 80; 1492 } 1493 1494 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1495 struct ieee80211_vif *vif) 1496 { 1497 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1498 int ret; 1499 1500 lockdep_assert_held(&mvm->mutex); 1501 1502 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1503 if (ret) { 1504 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1505 return ret; 1506 } 1507 1508 /* Only queue for this station is the mcast queue, 1509 * which shouldn't be in TFD mask anyway 1510 */ 1511 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1512 vif->type, 1513 IWL_STA_MULTICAST); 1514 } 1515 1516 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1517 { 1518 lockdep_assert_held(&mvm->mutex); 1519 1520 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1521 return; 1522 1523 INIT_DELAYED_WORK(&mvmvif->csa_work, 1524 iwl_mvm_channel_switch_disconnect_wk); 1525 } 1526 1527 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1528 struct ieee80211_vif *vif) 1529 { 1530 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1531 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1532 int ret; 1533 1534 mutex_lock(&mvm->mutex); 1535 1536 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1537 1538 mvmvif->mvm = mvm; 1539 1540 /* the first link always points to the default one */ 1541 mvmvif->link[0] = &mvmvif->deflink; 1542 1543 /* 1544 * Not much to do here. The stack will not allow interface 1545 * types or combinations that we didn't advertise, so we 1546 * don't really have to check the types. 1547 */ 1548 1549 /* make sure that beacon statistics don't go backwards with FW reset */ 1550 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1551 mvmvif->deflink.beacon_stats.accu_num_beacons += 1552 mvmvif->deflink.beacon_stats.num_beacons; 1553 1554 /* Allocate resources for the MAC context, and add it to the fw */ 1555 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1556 if (ret) 1557 goto out; 1558 1559 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1560 1561 /* Currently not much to do for NAN */ 1562 if (vif->type == NL80211_IFTYPE_NAN) { 1563 ret = 0; 1564 goto out; 1565 } 1566 1567 /* 1568 * The AP binding flow can be done only after the beacon 1569 * template is configured (which happens only in the mac80211 1570 * start_ap() flow), and adding the broadcast station can happen 1571 * only after the binding. 1572 * In addition, since modifying the MAC before adding a bcast 1573 * station is not allowed by the FW, delay the adding of MAC context to 1574 * the point where we can also add the bcast station. 1575 * In short: there's not much we can do at this point, other than 1576 * allocating resources :) 1577 */ 1578 if (vif->type == NL80211_IFTYPE_AP || 1579 vif->type == NL80211_IFTYPE_ADHOC) { 1580 iwl_mvm_vif_dbgfs_register(mvm, vif); 1581 ret = 0; 1582 goto out; 1583 } 1584 1585 mvmvif->features |= hw->netdev_features; 1586 1587 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1588 if (ret) 1589 goto out_unlock; 1590 1591 ret = iwl_mvm_power_update_mac(mvm); 1592 if (ret) 1593 goto out_remove_mac; 1594 1595 /* beacon filtering */ 1596 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1597 if (ret) 1598 goto out_remove_mac; 1599 1600 if (!mvm->bf_allowed_vif && 1601 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1602 mvm->bf_allowed_vif = mvmvif; 1603 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1604 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1605 } 1606 1607 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1608 mvm->p2p_device_vif = vif; 1609 1610 iwl_mvm_tcm_add_vif(mvm, vif); 1611 1612 if (vif->type == NL80211_IFTYPE_MONITOR) { 1613 mvm->monitor_on = true; 1614 mvm->monitor_p80 = 1615 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1616 } 1617 1618 iwl_mvm_vif_dbgfs_register(mvm, vif); 1619 1620 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1621 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1622 !mvm->csme_vif && mvm->mei_registered) { 1623 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1624 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1625 mvm->csme_vif = vif; 1626 } 1627 1628 out: 1629 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1630 vif->type == NL80211_IFTYPE_ADHOC)) 1631 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1632 1633 goto out_unlock; 1634 1635 if (mvm->bf_allowed_vif == mvmvif) { 1636 mvm->bf_allowed_vif = NULL; 1637 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1638 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1639 } 1640 out_remove_mac: 1641 mvmvif->deflink.phy_ctxt = NULL; 1642 iwl_mvm_mac_ctxt_remove(mvm, vif); 1643 out_unlock: 1644 mutex_unlock(&mvm->mutex); 1645 1646 return ret; 1647 } 1648 1649 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1650 struct ieee80211_vif *vif) 1651 { 1652 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1653 1654 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1655 /* 1656 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1657 * We assume here that all the packets sent to the OFFCHANNEL 1658 * queue are sent in ROC session. 1659 */ 1660 flush_work(&mvm->roc_done_wk); 1661 } 1662 1663 cancel_delayed_work_sync(&mvmvif->csa_work); 1664 } 1665 1666 /* This function is doing the common part of removing the interface for 1667 * both - MLD and non-MLD modes. Returns true if removing the interface 1668 * is done 1669 */ 1670 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1671 struct ieee80211_vif *vif) 1672 { 1673 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1674 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1675 struct iwl_probe_resp_data *probe_data; 1676 1677 iwl_mvm_prepare_mac_removal(mvm, vif); 1678 1679 if (!(vif->type == NL80211_IFTYPE_AP || 1680 vif->type == NL80211_IFTYPE_ADHOC)) 1681 iwl_mvm_tcm_rm_vif(mvm, vif); 1682 1683 mutex_lock(&mvm->mutex); 1684 1685 if (vif == mvm->csme_vif) { 1686 iwl_mei_set_netdev(NULL); 1687 mvm->csme_vif = NULL; 1688 } 1689 1690 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1691 lockdep_is_held(&mvm->mutex)); 1692 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1693 if (probe_data) 1694 kfree_rcu(probe_data, rcu_head); 1695 1696 if (mvm->bf_allowed_vif == mvmvif) { 1697 mvm->bf_allowed_vif = NULL; 1698 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1699 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1700 } 1701 1702 if (vif->bss_conf.ftm_responder) 1703 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1704 1705 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1706 1707 /* 1708 * For AP/GO interface, the tear down of the resources allocated to the 1709 * interface is be handled as part of the stop_ap flow. 1710 */ 1711 if (vif->type == NL80211_IFTYPE_AP || 1712 vif->type == NL80211_IFTYPE_ADHOC) { 1713 #ifdef CONFIG_NL80211_TESTMODE 1714 if (vif == mvm->noa_vif) { 1715 mvm->noa_vif = NULL; 1716 mvm->noa_duration = 0; 1717 } 1718 #endif 1719 return true; 1720 } 1721 1722 iwl_mvm_power_update_mac(mvm); 1723 return false; 1724 } 1725 1726 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1727 struct ieee80211_vif *vif) 1728 { 1729 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1730 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1731 1732 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1733 goto out; 1734 1735 /* Before the interface removal, mac80211 would cancel the ROC, and the 1736 * ROC worker would be scheduled if needed. The worker would be flushed 1737 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1738 * binding etc. so nothing needs to be done here. 1739 */ 1740 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1741 if (mvmvif->deflink.phy_ctxt) { 1742 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1743 mvmvif->deflink.phy_ctxt = NULL; 1744 } 1745 mvm->p2p_device_vif = NULL; 1746 } 1747 1748 iwl_mvm_mac_ctxt_remove(mvm, vif); 1749 1750 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1751 1752 if (vif->type == NL80211_IFTYPE_MONITOR) 1753 mvm->monitor_on = false; 1754 1755 out: 1756 if (vif->type == NL80211_IFTYPE_AP || 1757 vif->type == NL80211_IFTYPE_ADHOC) { 1758 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1759 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1760 } 1761 1762 mutex_unlock(&mvm->mutex); 1763 } 1764 1765 struct iwl_mvm_mc_iter_data { 1766 struct iwl_mvm *mvm; 1767 int port_id; 1768 }; 1769 1770 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1771 struct ieee80211_vif *vif) 1772 { 1773 struct iwl_mvm_mc_iter_data *data = _data; 1774 struct iwl_mvm *mvm = data->mvm; 1775 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1776 struct iwl_host_cmd hcmd = { 1777 .id = MCAST_FILTER_CMD, 1778 .flags = CMD_ASYNC, 1779 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1780 }; 1781 int ret, len; 1782 1783 /* if we don't have free ports, mcast frames will be dropped */ 1784 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1785 return; 1786 1787 if (vif->type != NL80211_IFTYPE_STATION || 1788 !vif->cfg.assoc) 1789 return; 1790 1791 cmd->port_id = data->port_id++; 1792 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1793 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1794 1795 hcmd.len[0] = len; 1796 hcmd.data[0] = cmd; 1797 1798 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1799 if (ret) 1800 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1801 } 1802 1803 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1804 { 1805 struct iwl_mvm_mc_iter_data iter_data = { 1806 .mvm = mvm, 1807 }; 1808 int ret; 1809 1810 lockdep_assert_held(&mvm->mutex); 1811 1812 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1813 return; 1814 1815 ieee80211_iterate_active_interfaces_atomic( 1816 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1817 iwl_mvm_mc_iface_iterator, &iter_data); 1818 1819 /* 1820 * Send a (synchronous) ech command so that we wait for the 1821 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1822 * the interface iterator. Otherwise, we might get here over 1823 * and over again (by userspace just sending a lot of these) 1824 * and the CPU can send them faster than the firmware can 1825 * process them. 1826 * Note that the CPU is still faster - but with this we'll 1827 * actually send fewer commands overall because the CPU will 1828 * not schedule the work in mac80211 as frequently if it's 1829 * still running when rescheduled (possibly multiple times). 1830 */ 1831 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1832 if (ret) 1833 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1834 } 1835 1836 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1837 struct netdev_hw_addr_list *mc_list) 1838 { 1839 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1840 struct iwl_mcast_filter_cmd *cmd; 1841 struct netdev_hw_addr *addr; 1842 int addr_count; 1843 bool pass_all; 1844 int len; 1845 1846 addr_count = netdev_hw_addr_list_count(mc_list); 1847 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1848 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1849 if (pass_all) 1850 addr_count = 0; 1851 1852 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1853 cmd = kzalloc(len, GFP_ATOMIC); 1854 if (!cmd) 1855 return 0; 1856 1857 if (pass_all) { 1858 cmd->pass_all = 1; 1859 return (u64)(unsigned long)cmd; 1860 } 1861 1862 netdev_hw_addr_list_for_each(addr, mc_list) { 1863 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1864 cmd->count, addr->addr); 1865 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1866 addr->addr, ETH_ALEN); 1867 cmd->count++; 1868 } 1869 1870 return (u64)(unsigned long)cmd; 1871 } 1872 1873 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1874 unsigned int changed_flags, 1875 unsigned int *total_flags, u64 multicast) 1876 { 1877 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1878 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1879 1880 mutex_lock(&mvm->mutex); 1881 1882 /* replace previous configuration */ 1883 kfree(mvm->mcast_filter_cmd); 1884 mvm->mcast_filter_cmd = cmd; 1885 1886 if (!cmd) 1887 goto out; 1888 1889 if (changed_flags & FIF_ALLMULTI) 1890 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1891 1892 if (cmd->pass_all) 1893 cmd->count = 0; 1894 1895 iwl_mvm_recalc_multicast(mvm); 1896 out: 1897 mutex_unlock(&mvm->mutex); 1898 *total_flags = 0; 1899 } 1900 1901 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1902 struct ieee80211_vif *vif, 1903 unsigned int filter_flags, 1904 unsigned int changed_flags) 1905 { 1906 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1907 1908 /* We support only filter for probe requests */ 1909 if (!(changed_flags & FIF_PROBE_REQ)) 1910 return; 1911 1912 /* Supported only for p2p client interfaces */ 1913 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1914 !vif->p2p) 1915 return; 1916 1917 mutex_lock(&mvm->mutex); 1918 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1919 mutex_unlock(&mvm->mutex); 1920 } 1921 1922 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1923 { 1924 struct iwl_mu_group_mgmt_cmd cmd = {}; 1925 1926 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1927 WLAN_MEMBERSHIP_LEN); 1928 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1929 WLAN_USER_POSITION_LEN); 1930 1931 return iwl_mvm_send_cmd_pdu(mvm, 1932 WIDE_ID(DATA_PATH_GROUP, 1933 UPDATE_MU_GROUPS_CMD), 1934 0, sizeof(cmd), &cmd); 1935 } 1936 1937 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1938 struct ieee80211_vif *vif) 1939 { 1940 if (vif->bss_conf.mu_mimo_owner) { 1941 struct iwl_mu_group_mgmt_notif *notif = _data; 1942 1943 /* 1944 * MU-MIMO Group Id action frame is little endian. We treat 1945 * the data received from firmware as if it came from the 1946 * action frame, so no conversion is needed. 1947 */ 1948 ieee80211_update_mu_groups(vif, 0, 1949 (u8 *)¬if->membership_status, 1950 (u8 *)¬if->user_position); 1951 } 1952 } 1953 1954 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1955 struct iwl_rx_cmd_buffer *rxb) 1956 { 1957 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1958 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1959 1960 ieee80211_iterate_active_interfaces_atomic( 1961 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1962 iwl_mvm_mu_mimo_iface_iterator, notif); 1963 } 1964 1965 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1966 { 1967 u8 byte_num = ppe_pos_bit / 8; 1968 u8 bit_num = ppe_pos_bit % 8; 1969 u8 residue_bits; 1970 u8 res; 1971 1972 if (bit_num <= 5) 1973 return (ppe[byte_num] >> bit_num) & 1974 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 1975 1976 /* 1977 * If bit_num > 5, we have to combine bits with next byte. 1978 * Calculate how many bits we need to take from current byte (called 1979 * here "residue_bits"), and add them to bits from next byte. 1980 */ 1981 1982 residue_bits = 8 - bit_num; 1983 1984 res = (ppe[byte_num + 1] & 1985 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 1986 residue_bits; 1987 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 1988 1989 return res; 1990 } 1991 1992 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 1993 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 1994 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 1995 bool inheritance) 1996 { 1997 int i; 1998 1999 /* 2000 * FW currently supports only nss == MAX_HE_SUPP_NSS 2001 * 2002 * If nss > MAX: we can ignore values we don't support 2003 * If nss < MAX: we can set zeros in other streams 2004 */ 2005 if (nss > MAX_HE_SUPP_NSS) { 2006 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2007 MAX_HE_SUPP_NSS); 2008 nss = MAX_HE_SUPP_NSS; 2009 } 2010 2011 for (i = 0; i < nss; i++) { 2012 u8 ru_index_tmp = ru_index_bitmap << 1; 2013 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2014 u8 bw; 2015 2016 for (bw = 0; 2017 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2018 bw++) { 2019 ru_index_tmp >>= 1; 2020 2021 /* 2022 * According to the 11be spec, if for a specific BW the PPE Thresholds 2023 * isn't present - it should inherit the thresholds from the last 2024 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2025 * this inheritance - continue in this case 2026 */ 2027 if (!(ru_index_tmp & 1)) { 2028 if (inheritance) 2029 goto set_thresholds; 2030 else 2031 continue; 2032 } 2033 2034 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2035 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2036 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2037 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2038 2039 set_thresholds: 2040 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2041 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2042 } 2043 } 2044 } 2045 2046 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2047 struct ieee80211_link_sta *link_sta, 2048 struct iwl_he_pkt_ext_v2 *pkt_ext, 2049 bool inheritance) 2050 { 2051 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2052 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2053 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2054 u8 ru_index_bitmap = 2055 u8_get_bits(*ppe, 2056 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2057 /* Starting after PPE header */ 2058 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2059 2060 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2061 inheritance); 2062 } 2063 2064 static int 2065 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2066 u8 nominal_padding) 2067 { 2068 int low_th = -1; 2069 int high_th = -1; 2070 int i; 2071 2072 /* all the macros are the same for EHT and HE */ 2073 switch (nominal_padding) { 2074 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2075 low_th = IWL_HE_PKT_EXT_NONE; 2076 high_th = IWL_HE_PKT_EXT_NONE; 2077 break; 2078 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2079 low_th = IWL_HE_PKT_EXT_BPSK; 2080 high_th = IWL_HE_PKT_EXT_NONE; 2081 break; 2082 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2083 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2084 low_th = IWL_HE_PKT_EXT_NONE; 2085 high_th = IWL_HE_PKT_EXT_BPSK; 2086 break; 2087 } 2088 2089 if (low_th < 0 || high_th < 0) 2090 return -EINVAL; 2091 2092 /* Set the PPE thresholds accordingly */ 2093 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2094 u8 bw; 2095 2096 for (bw = 0; 2097 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2098 bw++) { 2099 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2100 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2101 } 2102 } 2103 2104 return 0; 2105 } 2106 2107 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2108 u8 nominal_padding) 2109 { 2110 int i; 2111 2112 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2113 u8 bw; 2114 2115 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2116 bw++) { 2117 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2118 2119 if (nominal_padding > 2120 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2121 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2122 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2123 else if (nominal_padding == 2124 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2125 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2126 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2127 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2128 } 2129 } 2130 } 2131 2132 /* Set the pkt_ext field according to PPE Thresholds element */ 2133 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2134 struct ieee80211_link_sta *link_sta, 2135 struct iwl_he_pkt_ext_v2 *pkt_ext) 2136 { 2137 u8 nominal_padding; 2138 int i, ret = 0; 2139 2140 if (WARN_ON(!link_sta)) 2141 return -EINVAL; 2142 2143 /* Initialize the PPE thresholds to "None" (7), as described in Table 2144 * 9-262ac of 80211.ax/D3.0. 2145 */ 2146 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2147 sizeof(struct iwl_he_pkt_ext_v2)); 2148 2149 if (link_sta->eht_cap.has_eht) { 2150 nominal_padding = 2151 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2152 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2153 2154 /* If PPE Thresholds exists, parse them into a FW-familiar 2155 * format. 2156 */ 2157 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2158 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2159 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2160 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2161 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2162 u8 ru_index_bitmap = 2163 u16_get_bits(*ppe, 2164 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2165 /* Starting after PPE header */ 2166 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2167 2168 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2169 ppe, ppe_pos_bit, true); 2170 /* EHT PPE Thresholds doesn't exist - set the API according to 2171 * HE PPE Tresholds 2172 */ 2173 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2174 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2175 /* Even though HE Capabilities IE doesn't contain PPE 2176 * Thresholds for BW 320Mhz, thresholds for this BW will 2177 * be filled in with the same values as 160Mhz, due to 2178 * the inheritance, as required. 2179 */ 2180 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2181 true); 2182 2183 /* According to the requirements, for MCSs 12-13 the 2184 * maximum value between HE PPE Threshold and Common 2185 * Nominal Packet Padding needs to be taken 2186 */ 2187 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2188 2189 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2190 * take the Thresholds from Common Nominal Packet Padding field 2191 */ 2192 } else { 2193 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2194 nominal_padding); 2195 } 2196 } else if (link_sta->he_cap.has_he) { 2197 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2198 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2199 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2200 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2201 false); 2202 /* PPE Thresholds doesn't exist - set the API PPE values 2203 * according to Common Nominal Packet Padding field. 2204 */ 2205 } else { 2206 nominal_padding = 2207 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2208 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2209 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2210 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2211 nominal_padding); 2212 } 2213 } 2214 2215 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2216 int bw; 2217 2218 for (bw = 0; 2219 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2220 bw++) { 2221 u8 *qam_th = 2222 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2223 2224 IWL_DEBUG_HT(mvm, 2225 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2226 i, bw, qam_th[0], qam_th[1]); 2227 } 2228 } 2229 return ret; 2230 } 2231 2232 /* 2233 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2234 * is enabled or not 2235 */ 2236 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2237 const struct iwl_mvm_vif_link_info *link_info, 2238 struct iwl_he_backoff_conf *trig_based_txf) 2239 { 2240 int i; 2241 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2242 bool mu_edca_enabled = true; 2243 2244 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2245 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2246 &link_info->queue_params[i].mu_edca_param_rec; 2247 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2248 2249 if (!link_info->queue_params[i].mu_edca) { 2250 mu_edca_enabled = false; 2251 break; 2252 } 2253 2254 trig_based_txf[ac].cwmin = 2255 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2256 trig_based_txf[ac].cwmax = 2257 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2258 trig_based_txf[ac].aifsn = 2259 cpu_to_le16(mu_edca->aifsn & 0xf); 2260 trig_based_txf[ac].mu_time = 2261 cpu_to_le16(mu_edca->mu_edca_timer); 2262 } 2263 2264 return mu_edca_enabled; 2265 } 2266 2267 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2268 { 2269 const struct ieee80211_supported_band *sband; 2270 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2271 2272 /* This capability is the same for all bands, 2273 * so take it from one of them. 2274 */ 2275 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2276 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2277 2278 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2279 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2280 } 2281 2282 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2283 struct ieee80211_link_sta *link_sta) 2284 { 2285 u8 *mac_cap_info = 2286 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2287 __le32 htc_flags = 0; 2288 2289 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2290 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2291 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2292 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2293 u8 link_adap = 2294 ((mac_cap_info[2] & 2295 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2296 (mac_cap_info[1] & 2297 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2298 2299 if (link_adap == 2) 2300 htc_flags |= 2301 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2302 else if (link_adap == 3) 2303 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2304 } 2305 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2306 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2307 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2308 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2309 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2310 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2311 2312 return htc_flags; 2313 } 2314 2315 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2316 struct ieee80211_vif *vif, u8 sta_id) 2317 { 2318 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2319 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2320 .sta_id = sta_id, 2321 .tid_limit = IWL_MAX_TID_COUNT, 2322 .bss_color = vif->bss_conf.he_bss_color.color, 2323 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2324 .frame_time_rts_th = 2325 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2326 }; 2327 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2328 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2329 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2330 int size; 2331 struct ieee80211_sta *sta; 2332 u32 flags; 2333 int i; 2334 void *cmd; 2335 2336 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2337 ver = 1; 2338 2339 switch (ver) { 2340 case 1: 2341 /* same layout as v2 except some data at the end */ 2342 cmd = &sta_ctxt_cmd_v2; 2343 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2344 break; 2345 case 2: 2346 cmd = &sta_ctxt_cmd_v2; 2347 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2348 break; 2349 case 3: 2350 cmd = &sta_ctxt_cmd; 2351 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2352 break; 2353 default: 2354 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2355 return; 2356 } 2357 2358 rcu_read_lock(); 2359 2360 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2361 if (IS_ERR_OR_NULL(sta)) { 2362 rcu_read_unlock(); 2363 WARN(1, "Can't find STA to configure HE\n"); 2364 return; 2365 } 2366 2367 if (!sta->deflink.he_cap.has_he) { 2368 rcu_read_unlock(); 2369 return; 2370 } 2371 2372 flags = 0; 2373 2374 /* Block 26-tone RU OFDMA transmissions */ 2375 if (mvmvif->deflink.he_ru_2mhz_block) 2376 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2377 2378 /* HTC flags */ 2379 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2380 2381 /* PPE Thresholds */ 2382 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2383 flags |= STA_CTXT_HE_PACKET_EXT; 2384 2385 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2386 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2387 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2388 2389 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2390 IEEE80211_HE_MAC_CAP2_ACK_EN) 2391 flags |= STA_CTXT_HE_ACK_ENABLED; 2392 2393 rcu_read_unlock(); 2394 2395 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2396 &sta_ctxt_cmd.trig_based_txf[0])) 2397 flags |= STA_CTXT_HE_MU_EDCA_CW; 2398 2399 if (vif->bss_conf.uora_exists) { 2400 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2401 2402 sta_ctxt_cmd.rand_alloc_ecwmin = 2403 vif->bss_conf.uora_ocw_range & 0x7; 2404 sta_ctxt_cmd.rand_alloc_ecwmax = 2405 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2406 } 2407 2408 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2409 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2410 2411 if (vif->bss_conf.nontransmitted) { 2412 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2413 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2414 vif->bss_conf.transmitter_bssid); 2415 sta_ctxt_cmd.max_bssid_indicator = 2416 vif->bss_conf.bssid_indicator; 2417 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2418 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2419 sta_ctxt_cmd.profile_periodicity = 2420 vif->bss_conf.profile_periodicity; 2421 } 2422 2423 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2424 2425 if (ver < 3) { 2426 /* fields before pkt_ext */ 2427 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2428 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2429 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2430 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2431 2432 /* pkt_ext */ 2433 for (i = 0; 2434 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2435 i++) { 2436 u8 bw; 2437 2438 for (bw = 0; 2439 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2440 bw++) { 2441 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2442 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2443 2444 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2445 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2446 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2447 } 2448 } 2449 2450 /* fields after pkt_ext */ 2451 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2452 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2453 sizeof(sta_ctxt_cmd_v2) - 2454 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2455 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2456 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2457 (u8 *)&sta_ctxt_cmd + 2458 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2459 sizeof(sta_ctxt_cmd) - 2460 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2461 sta_ctxt_cmd_v2.reserved3 = 0; 2462 } 2463 2464 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2465 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2466 } 2467 2468 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2469 u32 duration_override) 2470 { 2471 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2472 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2473 2474 if (duration_override > duration) 2475 duration = duration_override; 2476 2477 /* Try really hard to protect the session and hear a beacon 2478 * The new session protection command allows us to protect the 2479 * session for a much longer time since the firmware will internally 2480 * create two events: a 300TU one with a very high priority that 2481 * won't be fragmented which should be enough for 99% of the cases, 2482 * and another one (which we configure here to be 900TU long) which 2483 * will have a slightly lower priority, but more importantly, can be 2484 * fragmented so that it'll allow other activities to run. 2485 */ 2486 if (fw_has_capa(&mvm->fw->ucode_capa, 2487 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2488 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2489 min_duration, false); 2490 else 2491 iwl_mvm_protect_session(mvm, vif, duration, 2492 min_duration, 500, false); 2493 } 2494 2495 /* Handle association common part to MLD and non-MLD modes */ 2496 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2497 struct ieee80211_vif *vif, 2498 u64 changes) 2499 { 2500 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2501 int ret; 2502 2503 /* The firmware tracks the MU-MIMO group on its own. 2504 * However, on HW restart we should restore this data. 2505 */ 2506 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2507 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2508 ret = iwl_mvm_update_mu_groups(mvm, vif); 2509 if (ret) 2510 IWL_ERR(mvm, 2511 "failed to update VHT MU_MIMO groups\n"); 2512 } 2513 2514 iwl_mvm_recalc_multicast(mvm); 2515 2516 /* reset rssi values */ 2517 mvmvif->bf_data.ave_beacon_signal = 0; 2518 2519 iwl_mvm_bt_coex_vif_change(mvm); 2520 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2521 IEEE80211_SMPS_AUTOMATIC); 2522 if (fw_has_capa(&mvm->fw->ucode_capa, 2523 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2524 iwl_mvm_config_scan(mvm); 2525 } 2526 2527 /* Execute the common part for MLD and non-MLD modes */ 2528 void 2529 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2530 struct ieee80211_vif *vif, 2531 struct ieee80211_bss_conf *link_conf, 2532 u64 changes) 2533 { 2534 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2535 int ret; 2536 2537 if (changes & BSS_CHANGED_BEACON_INFO) { 2538 /* We received a beacon from the associated AP so 2539 * remove the session protection. 2540 */ 2541 iwl_mvm_stop_session_protection(mvm, vif); 2542 2543 iwl_mvm_sf_update(mvm, vif, false); 2544 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2545 } 2546 2547 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2548 /* Send power command on every beacon change, 2549 * because we may have not enabled beacon abort yet. 2550 */ 2551 BSS_CHANGED_BEACON_INFO)) { 2552 ret = iwl_mvm_power_update_mac(mvm); 2553 if (ret) 2554 IWL_ERR(mvm, "failed to update power mode\n"); 2555 } 2556 2557 if (changes & BSS_CHANGED_CQM) { 2558 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2559 /* reset cqm events tracking */ 2560 mvmvif->bf_data.last_cqm_event = 0; 2561 if (mvmvif->bf_data.bf_enabled) { 2562 /* FIXME: need to update per link when FW API will 2563 * support it 2564 */ 2565 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2566 if (ret) 2567 IWL_ERR(mvm, 2568 "failed to update CQM thresholds\n"); 2569 } 2570 } 2571 2572 if (changes & BSS_CHANGED_BANDWIDTH) 2573 iwl_mvm_update_link_smps(vif, link_conf); 2574 } 2575 2576 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2577 struct ieee80211_vif *vif, 2578 struct ieee80211_bss_conf *bss_conf, 2579 u64 changes) 2580 { 2581 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2582 int ret; 2583 2584 /* 2585 * Re-calculate the tsf id, as the leader-follower relations depend 2586 * on the beacon interval, which was not known when the station 2587 * interface was added. 2588 */ 2589 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2590 if ((vif->bss_conf.he_support && 2591 !iwlwifi_mod_params.disable_11ax) || 2592 (vif->bss_conf.eht_support && 2593 !iwlwifi_mod_params.disable_11be)) 2594 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2595 2596 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2597 } 2598 2599 /* Update MU EDCA params */ 2600 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2601 vif->cfg.assoc && 2602 ((vif->bss_conf.he_support && 2603 !iwlwifi_mod_params.disable_11ax) || 2604 (vif->bss_conf.eht_support && 2605 !iwlwifi_mod_params.disable_11be))) 2606 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2607 2608 /* 2609 * If we're not associated yet, take the (new) BSSID before associating 2610 * so the firmware knows. If we're already associated, then use the old 2611 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2612 * branch for disassociation below. 2613 */ 2614 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2615 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2616 2617 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2618 if (ret) 2619 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2620 2621 /* after sending it once, adopt mac80211 data */ 2622 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2623 mvmvif->associated = vif->cfg.assoc; 2624 2625 if (changes & BSS_CHANGED_ASSOC) { 2626 if (vif->cfg.assoc) { 2627 /* clear statistics to get clean beacon counter */ 2628 iwl_mvm_request_statistics(mvm, true); 2629 memset(&mvmvif->deflink.beacon_stats, 0, 2630 sizeof(mvmvif->deflink.beacon_stats)); 2631 2632 /* add quota for this interface */ 2633 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2634 if (ret) { 2635 IWL_ERR(mvm, "failed to update quotas\n"); 2636 return; 2637 } 2638 2639 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2640 &mvm->status) && 2641 !fw_has_capa(&mvm->fw->ucode_capa, 2642 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2643 /* 2644 * If we're restarting then the firmware will 2645 * obviously have lost synchronisation with 2646 * the AP. It will attempt to synchronise by 2647 * itself, but we can make it more reliable by 2648 * scheduling a session protection time event. 2649 * 2650 * The firmware needs to receive a beacon to 2651 * catch up with synchronisation, use 110% of 2652 * the beacon interval. 2653 * 2654 * Set a large maximum delay to allow for more 2655 * than a single interface. 2656 * 2657 * For new firmware versions, rely on the 2658 * firmware. This is relevant for DCM scenarios 2659 * only anyway. 2660 */ 2661 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2662 iwl_mvm_protect_session(mvm, vif, dur, dur, 2663 5 * dur, false); 2664 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2665 &mvm->status) && 2666 !vif->bss_conf.dtim_period) { 2667 /* 2668 * If we're not restarting and still haven't 2669 * heard a beacon (dtim period unknown) then 2670 * make sure we still have enough minimum time 2671 * remaining in the time event, since the auth 2672 * might actually have taken quite a while 2673 * (especially for SAE) and so the remaining 2674 * time could be small without us having heard 2675 * a beacon yet. 2676 */ 2677 iwl_mvm_protect_assoc(mvm, vif, 0); 2678 } 2679 2680 iwl_mvm_sf_update(mvm, vif, false); 2681 iwl_mvm_power_vif_assoc(mvm, vif); 2682 if (vif->p2p) { 2683 iwl_mvm_update_smps(mvm, vif, 2684 IWL_MVM_SMPS_REQ_PROT, 2685 IEEE80211_SMPS_DYNAMIC, 0); 2686 } 2687 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2688 iwl_mvm_mei_host_disassociated(mvm); 2689 /* 2690 * If update fails - SF might be running in associated 2691 * mode while disassociated - which is forbidden. 2692 */ 2693 ret = iwl_mvm_sf_update(mvm, vif, false); 2694 WARN_ONCE(ret && 2695 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2696 &mvm->status), 2697 "Failed to update SF upon disassociation\n"); 2698 2699 /* 2700 * If we get an assert during the connection (after the 2701 * station has been added, but before the vif is set 2702 * to associated), mac80211 will re-add the station and 2703 * then configure the vif. Since the vif is not 2704 * associated, we would remove the station here and 2705 * this would fail the recovery. 2706 */ 2707 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2708 &mvm->status)) { 2709 /* first remove remaining keys */ 2710 iwl_mvm_sec_key_remove_ap(mvm, vif, 2711 &mvmvif->deflink, 0); 2712 2713 /* 2714 * Remove AP station now that 2715 * the MAC is unassoc 2716 */ 2717 ret = iwl_mvm_rm_sta_id(mvm, vif, 2718 mvmvif->deflink.ap_sta_id); 2719 if (ret) 2720 IWL_ERR(mvm, 2721 "failed to remove AP station\n"); 2722 2723 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2724 } 2725 2726 /* remove quota for this interface */ 2727 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2728 if (ret) 2729 IWL_ERR(mvm, "failed to update quotas\n"); 2730 2731 /* this will take the cleared BSSID from bss_conf */ 2732 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2733 if (ret) 2734 IWL_ERR(mvm, 2735 "failed to update MAC %pM (clear after unassoc)\n", 2736 vif->addr); 2737 } 2738 2739 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2740 } 2741 2742 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2743 changes); 2744 } 2745 2746 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2747 struct ieee80211_vif *vif, 2748 int *ret) 2749 { 2750 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2751 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2752 int i; 2753 2754 lockdep_assert_held(&mvm->mutex); 2755 2756 mvmvif->ap_assoc_sta_count = 0; 2757 2758 /* must be set before quota calculations */ 2759 mvmvif->ap_ibss_active = true; 2760 2761 /* send all the early keys to the device now */ 2762 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2763 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2764 2765 if (!key) 2766 continue; 2767 2768 mvmvif->ap_early_keys[i] = NULL; 2769 2770 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2771 if (*ret) 2772 return true; 2773 } 2774 2775 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2776 iwl_mvm_vif_set_low_latency(mvmvif, true, 2777 LOW_LATENCY_VIF_TYPE); 2778 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2779 } 2780 2781 /* power updated needs to be done before quotas */ 2782 iwl_mvm_power_update_mac(mvm); 2783 2784 return false; 2785 } 2786 2787 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2788 struct ieee80211_vif *vif, 2789 struct ieee80211_bss_conf *link_conf) 2790 { 2791 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2792 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2793 int ret; 2794 2795 mutex_lock(&mvm->mutex); 2796 2797 /* 2798 * Re-calculate the tsf id, as the leader-follower relations depend on 2799 * the beacon interval, which was not known when the AP interface 2800 * was added. 2801 */ 2802 if (vif->type == NL80211_IFTYPE_AP) 2803 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2804 2805 /* For older devices need to send beacon template before adding mac 2806 * context. For the newer, the beacon is a resource that belongs to a 2807 * MAC, so need to send beacon template after adding the mac. 2808 */ 2809 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2810 /* Add the mac context */ 2811 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2812 if (ret) 2813 goto out_unlock; 2814 2815 /* Send the beacon template */ 2816 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2817 if (ret) 2818 goto out_unlock; 2819 } else { 2820 /* Send the beacon template */ 2821 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2822 if (ret) 2823 goto out_unlock; 2824 2825 /* Add the mac context */ 2826 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2827 if (ret) 2828 goto out_unlock; 2829 } 2830 2831 /* Perform the binding */ 2832 ret = iwl_mvm_binding_add_vif(mvm, vif); 2833 if (ret) 2834 goto out_remove; 2835 2836 /* 2837 * This is not very nice, but the simplest: 2838 * For older FWs adding the mcast sta before the bcast station may 2839 * cause assert 0x2b00. 2840 * This is fixed in later FW so make the order of removal depend on 2841 * the TLV 2842 */ 2843 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2844 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2845 if (ret) 2846 goto out_unbind; 2847 /* 2848 * Send the bcast station. At this stage the TBTT and DTIM time 2849 * events are added and applied to the scheduler 2850 */ 2851 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2852 if (ret) { 2853 iwl_mvm_rm_mcast_sta(mvm, vif); 2854 goto out_unbind; 2855 } 2856 } else { 2857 /* 2858 * Send the bcast station. At this stage the TBTT and DTIM time 2859 * events are added and applied to the scheduler 2860 */ 2861 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2862 if (ret) 2863 goto out_unbind; 2864 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2865 if (ret) { 2866 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2867 goto out_unbind; 2868 } 2869 } 2870 2871 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2872 goto out_failed; 2873 2874 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2875 if (ret) 2876 goto out_failed; 2877 2878 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2879 if (vif->p2p && mvm->p2p_device_vif) 2880 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2881 2882 iwl_mvm_bt_coex_vif_change(mvm); 2883 2884 /* we don't support TDLS during DCM */ 2885 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2886 iwl_mvm_teardown_tdls_peers(mvm); 2887 2888 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2889 2890 goto out_unlock; 2891 2892 out_failed: 2893 iwl_mvm_power_update_mac(mvm); 2894 mvmvif->ap_ibss_active = false; 2895 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2896 iwl_mvm_rm_mcast_sta(mvm, vif); 2897 out_unbind: 2898 iwl_mvm_binding_remove_vif(mvm, vif); 2899 out_remove: 2900 iwl_mvm_mac_ctxt_remove(mvm, vif); 2901 out_unlock: 2902 mutex_unlock(&mvm->mutex); 2903 return ret; 2904 } 2905 2906 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2907 struct ieee80211_vif *vif, 2908 struct ieee80211_bss_conf *link_conf) 2909 { 2910 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2911 } 2912 2913 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2914 struct ieee80211_vif *vif) 2915 { 2916 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2917 } 2918 2919 /* Common part for MLD and non-MLD ops */ 2920 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2921 struct ieee80211_vif *vif) 2922 { 2923 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2924 2925 lockdep_assert_held(&mvm->mutex); 2926 2927 iwl_mvm_prepare_mac_removal(mvm, vif); 2928 2929 /* Handle AP stop while in CSA */ 2930 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2931 iwl_mvm_remove_time_event(mvm, mvmvif, 2932 &mvmvif->time_event_data); 2933 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2934 mvmvif->csa_countdown = false; 2935 } 2936 2937 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2938 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2939 mvm->csa_tx_block_bcn_timeout = 0; 2940 } 2941 2942 mvmvif->ap_ibss_active = false; 2943 mvm->ap_last_beacon_gp2 = 0; 2944 2945 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2946 iwl_mvm_vif_set_low_latency(mvmvif, false, 2947 LOW_LATENCY_VIF_TYPE); 2948 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2949 } 2950 2951 iwl_mvm_bt_coex_vif_change(mvm); 2952 } 2953 2954 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2955 struct ieee80211_vif *vif, 2956 struct ieee80211_bss_conf *link_conf) 2957 { 2958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2959 2960 mutex_lock(&mvm->mutex); 2961 2962 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2963 2964 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2965 if (vif->p2p && mvm->p2p_device_vif) 2966 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2967 2968 iwl_mvm_update_quotas(mvm, false, NULL); 2969 2970 iwl_mvm_ftm_responder_clear(mvm, vif); 2971 2972 /* 2973 * This is not very nice, but the simplest: 2974 * For older FWs removing the mcast sta before the bcast station may 2975 * cause assert 0x2b00. 2976 * This is fixed in later FW (which will stop beaconing when removing 2977 * bcast station). 2978 * So make the order of removal depend on the TLV 2979 */ 2980 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2981 iwl_mvm_rm_mcast_sta(mvm, vif); 2982 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2983 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2984 iwl_mvm_rm_mcast_sta(mvm, vif); 2985 iwl_mvm_binding_remove_vif(mvm, vif); 2986 2987 iwl_mvm_power_update_mac(mvm); 2988 2989 iwl_mvm_mac_ctxt_remove(mvm, vif); 2990 2991 mutex_unlock(&mvm->mutex); 2992 } 2993 2994 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 2995 struct ieee80211_vif *vif, 2996 struct ieee80211_bss_conf *link_conf) 2997 { 2998 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 2999 } 3000 3001 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3002 struct ieee80211_vif *vif) 3003 { 3004 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3005 } 3006 3007 static void 3008 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3009 struct ieee80211_vif *vif, 3010 struct ieee80211_bss_conf *bss_conf, 3011 u64 changes) 3012 { 3013 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3014 3015 /* Changes will be applied when the AP/IBSS is started */ 3016 if (!mvmvif->ap_ibss_active) 3017 return; 3018 3019 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3020 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3021 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3022 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3023 3024 /* Need to send a new beacon template to the FW */ 3025 if (changes & BSS_CHANGED_BEACON && 3026 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3027 IWL_WARN(mvm, "Failed updating beacon data\n"); 3028 3029 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3030 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3031 3032 if (ret) 3033 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3034 ret); 3035 } 3036 3037 } 3038 3039 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3040 struct ieee80211_vif *vif, 3041 struct ieee80211_bss_conf *bss_conf, 3042 u64 changes) 3043 { 3044 static const struct iwl_mvm_bss_info_changed_ops callbacks = { 3045 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3046 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3047 }; 3048 3049 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3050 changes); 3051 } 3052 3053 void 3054 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3055 struct ieee80211_vif *vif, 3056 struct ieee80211_bss_conf *bss_conf, 3057 const struct iwl_mvm_bss_info_changed_ops *callbacks, 3058 u64 changes) 3059 { 3060 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3061 3062 mutex_lock(&mvm->mutex); 3063 3064 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3065 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3066 3067 switch (vif->type) { 3068 case NL80211_IFTYPE_STATION: 3069 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3070 break; 3071 case NL80211_IFTYPE_AP: 3072 case NL80211_IFTYPE_ADHOC: 3073 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3074 changes); 3075 break; 3076 case NL80211_IFTYPE_MONITOR: 3077 if (changes & BSS_CHANGED_MU_GROUPS) 3078 iwl_mvm_update_mu_groups(mvm, vif); 3079 break; 3080 default: 3081 /* shouldn't happen */ 3082 WARN_ON_ONCE(1); 3083 } 3084 3085 if (changes & BSS_CHANGED_TXPOWER) { 3086 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3087 bss_conf->txpower); 3088 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3089 } 3090 3091 mutex_unlock(&mvm->mutex); 3092 } 3093 3094 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3095 struct ieee80211_scan_request *hw_req) 3096 { 3097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3098 int ret; 3099 3100 if (hw_req->req.n_channels == 0 || 3101 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3102 return -EINVAL; 3103 3104 mutex_lock(&mvm->mutex); 3105 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3106 mutex_unlock(&mvm->mutex); 3107 3108 return ret; 3109 } 3110 3111 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3112 struct ieee80211_vif *vif) 3113 { 3114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3115 3116 mutex_lock(&mvm->mutex); 3117 3118 /* Due to a race condition, it's possible that mac80211 asks 3119 * us to stop a hw_scan when it's already stopped. This can 3120 * happen, for instance, if we stopped the scan ourselves, 3121 * called ieee80211_scan_completed() and the userspace called 3122 * cancel scan scan before ieee80211_scan_work() could run. 3123 * To handle that, simply return if the scan is not running. 3124 */ 3125 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3126 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3127 3128 mutex_unlock(&mvm->mutex); 3129 } 3130 3131 void 3132 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3133 struct ieee80211_sta *sta, u16 tids, 3134 int num_frames, 3135 enum ieee80211_frame_release_type reason, 3136 bool more_data) 3137 { 3138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3139 3140 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3141 3142 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3143 tids, more_data, false); 3144 } 3145 3146 void 3147 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3148 struct ieee80211_sta *sta, u16 tids, 3149 int num_frames, 3150 enum ieee80211_frame_release_type reason, 3151 bool more_data) 3152 { 3153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3154 3155 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3156 3157 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3158 tids, more_data, true); 3159 } 3160 3161 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3162 enum sta_notify_cmd cmd, 3163 struct ieee80211_sta *sta) 3164 { 3165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3166 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3167 unsigned long txqs = 0, tids = 0; 3168 int tid; 3169 3170 /* 3171 * If we have TVQM then we get too high queue numbers - luckily 3172 * we really shouldn't get here with that because such hardware 3173 * should have firmware supporting buffer station offload. 3174 */ 3175 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3176 return; 3177 3178 spin_lock_bh(&mvmsta->lock); 3179 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3180 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3181 3182 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3183 continue; 3184 3185 __set_bit(tid_data->txq_id, &txqs); 3186 3187 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3188 continue; 3189 3190 __set_bit(tid, &tids); 3191 } 3192 3193 switch (cmd) { 3194 case STA_NOTIFY_SLEEP: 3195 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3196 ieee80211_sta_set_buffered(sta, tid, true); 3197 3198 if (txqs) 3199 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3200 /* 3201 * The fw updates the STA to be asleep. Tx packets on the Tx 3202 * queues to this station will not be transmitted. The fw will 3203 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3204 */ 3205 break; 3206 case STA_NOTIFY_AWAKE: 3207 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3208 break; 3209 3210 if (txqs) 3211 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3212 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3213 break; 3214 default: 3215 break; 3216 } 3217 spin_unlock_bh(&mvmsta->lock); 3218 } 3219 3220 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3221 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3222 { 3223 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3224 } 3225 3226 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3227 { 3228 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3229 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3230 struct ieee80211_sta *sta; 3231 struct iwl_mvm_sta *mvmsta; 3232 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3233 3234 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3235 return; 3236 3237 rcu_read_lock(); 3238 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3239 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3240 rcu_read_unlock(); 3241 return; 3242 } 3243 3244 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3245 3246 if (!mvmsta->vif || 3247 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3248 rcu_read_unlock(); 3249 return; 3250 } 3251 3252 if (mvmsta->sleeping != sleeping) { 3253 mvmsta->sleeping = sleeping; 3254 __iwl_mvm_mac_sta_notify(mvm->hw, 3255 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3256 sta); 3257 ieee80211_sta_ps_transition(sta, sleeping); 3258 } 3259 3260 if (sleeping) { 3261 switch (notif->type) { 3262 case IWL_MVM_PM_EVENT_AWAKE: 3263 case IWL_MVM_PM_EVENT_ASLEEP: 3264 break; 3265 case IWL_MVM_PM_EVENT_UAPSD: 3266 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3267 break; 3268 case IWL_MVM_PM_EVENT_PS_POLL: 3269 ieee80211_sta_pspoll(sta); 3270 break; 3271 default: 3272 break; 3273 } 3274 } 3275 3276 rcu_read_unlock(); 3277 } 3278 3279 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3280 struct ieee80211_vif *vif, 3281 struct ieee80211_sta *sta) 3282 { 3283 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3284 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3285 unsigned int link_id; 3286 3287 /* 3288 * This is called before mac80211 does RCU synchronisation, 3289 * so here we already invalidate our internal RCU-protected 3290 * station pointer. The rest of the code will thus no longer 3291 * be able to find the station this way, and we don't rely 3292 * on further RCU synchronisation after the sta_state() 3293 * callback deleted the station. 3294 * Since there's mvm->mutex here, no need to have RCU lock for 3295 * mvm_sta->link access. 3296 */ 3297 mutex_lock(&mvm->mutex); 3298 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3299 struct iwl_mvm_link_sta *link_sta; 3300 u32 sta_id; 3301 3302 if (!mvm_sta->link[link_id]) 3303 continue; 3304 3305 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3306 lockdep_is_held(&mvm->mutex)); 3307 sta_id = link_sta->sta_id; 3308 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3309 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3310 ERR_PTR(-ENOENT)); 3311 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3312 } 3313 } 3314 mutex_unlock(&mvm->mutex); 3315 } 3316 3317 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3318 const u8 *bssid) 3319 { 3320 int i; 3321 3322 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3323 struct iwl_mvm_tcm_mac *mdata; 3324 3325 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3326 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3327 mdata->opened_rx_ba_sessions = false; 3328 } 3329 3330 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3331 return; 3332 3333 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3334 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3335 return; 3336 } 3337 3338 if (!vif->p2p && 3339 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3340 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3341 return; 3342 } 3343 3344 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3345 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3346 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3347 return; 3348 } 3349 } 3350 3351 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3352 } 3353 3354 static void 3355 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3356 struct ieee80211_vif *vif, u8 *peer_addr, 3357 enum nl80211_tdls_operation action) 3358 { 3359 struct iwl_fw_dbg_trigger_tlv *trig; 3360 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3361 3362 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3363 FW_DBG_TRIGGER_TDLS); 3364 if (!trig) 3365 return; 3366 3367 tdls_trig = (void *)trig->data; 3368 3369 if (!(tdls_trig->action_bitmap & BIT(action))) 3370 return; 3371 3372 if (tdls_trig->peer_mode && 3373 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3374 return; 3375 3376 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3377 "TDLS event occurred, peer %pM, action %d", 3378 peer_addr, action); 3379 } 3380 3381 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3382 bool tolerated; 3383 }; 3384 3385 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3386 struct cfg80211_bss *bss, 3387 void *_data) 3388 { 3389 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3390 const struct cfg80211_bss_ies *ies; 3391 const struct element *elem; 3392 3393 rcu_read_lock(); 3394 ies = rcu_dereference(bss->ies); 3395 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3396 ies->len); 3397 3398 if (!elem || elem->datalen < 10 || 3399 !(elem->data[10] & 3400 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3401 data->tolerated = false; 3402 } 3403 rcu_read_unlock(); 3404 } 3405 3406 static void 3407 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3408 struct ieee80211_vif *vif, 3409 unsigned int link_id, 3410 struct ieee80211_bss_conf *link_conf) 3411 { 3412 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3413 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3414 .tolerated = true, 3415 }; 3416 3417 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3418 !mvmvif->link[link_id])) 3419 return; 3420 3421 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3422 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3423 return; 3424 } 3425 3426 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3427 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3428 &iter_data); 3429 3430 /* 3431 * If there is at least one AP on radar channel that cannot 3432 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3433 */ 3434 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3435 } 3436 3437 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3438 struct ieee80211_vif *vif) 3439 { 3440 struct ieee80211_supported_band *sband; 3441 const struct ieee80211_sta_he_cap *he_cap; 3442 3443 if (vif->type != NL80211_IFTYPE_STATION) 3444 return; 3445 3446 if (!mvm->cca_40mhz_workaround) 3447 return; 3448 3449 /* decrement and check that we reached zero */ 3450 mvm->cca_40mhz_workaround--; 3451 if (mvm->cca_40mhz_workaround) 3452 return; 3453 3454 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3455 3456 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3457 3458 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3459 3460 if (he_cap) { 3461 /* we know that ours is writable */ 3462 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3463 3464 he->he_cap_elem.phy_cap_info[0] |= 3465 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3466 } 3467 } 3468 3469 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3470 struct ieee80211_vif *vif, 3471 struct iwl_mvm_sta *mvm_sta) 3472 { 3473 #if IS_ENABLED(CONFIG_IWLMEI) 3474 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3475 struct iwl_mei_conn_info conn_info = { 3476 .ssid_len = vif->cfg.ssid_len, 3477 }; 3478 3479 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3480 return; 3481 3482 if (!mvm->mei_registered) 3483 return; 3484 3485 /* FIXME: MEI needs to be updated for MLO */ 3486 if (!vif->bss_conf.chandef.chan) 3487 return; 3488 3489 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3490 3491 switch (mvm_sta->pairwise_cipher) { 3492 case WLAN_CIPHER_SUITE_TKIP: 3493 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3494 break; 3495 case WLAN_CIPHER_SUITE_CCMP: 3496 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3497 break; 3498 case WLAN_CIPHER_SUITE_GCMP: 3499 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3500 break; 3501 case WLAN_CIPHER_SUITE_GCMP_256: 3502 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3503 break; 3504 case 0: 3505 /* open profile */ 3506 break; 3507 default: 3508 /* cipher not supported, don't send anything to iwlmei */ 3509 return; 3510 } 3511 3512 switch (mvmvif->rekey_data.akm) { 3513 case WLAN_AKM_SUITE_SAE & 0xff: 3514 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3515 break; 3516 case WLAN_AKM_SUITE_PSK & 0xff: 3517 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3518 break; 3519 case WLAN_AKM_SUITE_8021X & 0xff: 3520 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3521 break; 3522 case 0: 3523 /* open profile */ 3524 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3525 break; 3526 default: 3527 /* auth method / AKM not supported */ 3528 /* TODO: All the FT vesions of these? */ 3529 return; 3530 } 3531 3532 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3533 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3534 3535 /* TODO: add support for collocated AP data */ 3536 iwl_mei_host_associated(&conn_info, NULL); 3537 #endif 3538 } 3539 3540 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3541 struct ieee80211_vif *vif, 3542 bool force_assoc_off) 3543 { 3544 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3545 } 3546 3547 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3548 struct ieee80211_vif *vif, 3549 struct ieee80211_sta *sta, 3550 enum ieee80211_sta_state old_state, 3551 enum ieee80211_sta_state new_state) 3552 { 3553 static const struct iwl_mvm_sta_state_ops callbacks = { 3554 .add_sta = iwl_mvm_add_sta, 3555 .update_sta = iwl_mvm_update_sta, 3556 .rm_sta = iwl_mvm_rm_sta, 3557 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3558 }; 3559 3560 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3561 &callbacks); 3562 } 3563 3564 /* FIXME: temporary making two assumptions in all sta handling functions: 3565 * (1) when setting sta state, the link exists and protected 3566 * (2) if a link is valid in sta then it's valid in vif (can 3567 * use same index in the link array) 3568 */ 3569 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3570 struct ieee80211_vif *vif, 3571 struct ieee80211_sta *sta) 3572 { 3573 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3574 unsigned int link_id; 3575 3576 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3577 struct ieee80211_bss_conf *conf = 3578 link_conf_dereference_check(vif, link_id); 3579 struct ieee80211_link_sta *link_sta = 3580 link_sta_dereference_check(sta, link_id); 3581 3582 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3583 continue; 3584 3585 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3586 mvmvif->link[link_id]->phy_ctxt->channel->band); 3587 } 3588 } 3589 3590 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3591 3592 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3593 struct ieee80211_vif *vif, 3594 struct ieee80211_sta *sta) 3595 { 3596 struct ieee80211_link_sta *link_sta; 3597 unsigned int link_id; 3598 3599 /* Beacon interval check - firmware will crash if the beacon 3600 * interval is less than 16. We can't avoid connecting at all, 3601 * so refuse the station state change, this will cause mac80211 3602 * to abandon attempts to connect to this AP, and eventually 3603 * wpa_s will blocklist the AP... 3604 */ 3605 3606 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3607 struct ieee80211_bss_conf *link_conf = 3608 link_conf_dereference_protected(vif, link_id); 3609 3610 if (!link_conf) 3611 continue; 3612 3613 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3614 IWL_ERR(mvm, 3615 "Beacon interval %d for AP %pM is too small\n", 3616 link_conf->beacon_int, link_sta->addr); 3617 return false; 3618 } 3619 3620 link_conf->he_support = link_sta->he_cap.has_he; 3621 } 3622 3623 return true; 3624 } 3625 3626 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3627 struct ieee80211_vif *vif, 3628 struct ieee80211_sta *sta, 3629 bool is_sta) 3630 { 3631 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3632 struct ieee80211_link_sta *link_sta; 3633 unsigned int link_id; 3634 3635 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3636 struct ieee80211_bss_conf *link_conf = 3637 link_conf_dereference_protected(vif, link_id); 3638 3639 if (!link_conf || !mvmvif->link[link_id]) 3640 continue; 3641 3642 link_conf->he_support = link_sta->he_cap.has_he; 3643 3644 if (is_sta) { 3645 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3646 if (link_sta->he_cap.has_he) 3647 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3648 link_id, 3649 link_conf); 3650 } 3651 } 3652 } 3653 3654 static int 3655 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3656 struct ieee80211_vif *vif, 3657 struct ieee80211_sta *sta, 3658 const struct iwl_mvm_sta_state_ops *callbacks) 3659 { 3660 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3661 struct ieee80211_link_sta *link_sta; 3662 unsigned int i; 3663 int ret; 3664 3665 lockdep_assert_held(&mvm->mutex); 3666 3667 if (vif->type == NL80211_IFTYPE_STATION && 3668 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3669 return -EINVAL; 3670 3671 if (sta->tdls && 3672 (vif->p2p || 3673 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3674 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3675 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3676 return -EBUSY; 3677 } 3678 3679 ret = callbacks->add_sta(mvm, vif, sta); 3680 if (sta->tdls && ret == 0) { 3681 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3682 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3683 NL80211_TDLS_SETUP); 3684 } 3685 3686 if (ret) 3687 return ret; 3688 3689 for_each_sta_active_link(vif, sta, link_sta, i) 3690 link_sta->agg.max_rc_amsdu_len = 1; 3691 3692 ieee80211_sta_recalc_aggregates(sta); 3693 3694 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3695 mvmvif->ap_sta = sta; 3696 3697 /* 3698 * Initialize the rates here already - this really tells 3699 * the firmware only what the supported legacy rates are 3700 * (may be) since it's initialized already from what the 3701 * AP advertised in the beacon/probe response. This will 3702 * allow the firmware to send auth/assoc frames with one 3703 * of the supported rates already, rather than having to 3704 * use a mandatory rate. 3705 * If we're the AP, we'll just assume mandatory rates at 3706 * this point, but we know nothing about the STA anyway. 3707 */ 3708 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3709 3710 return 0; 3711 } 3712 3713 static int 3714 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3715 struct iwl_mvm *mvm, 3716 struct ieee80211_vif *vif, 3717 struct ieee80211_sta *sta, 3718 const struct iwl_mvm_sta_state_ops *callbacks) 3719 { 3720 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3721 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3722 struct ieee80211_link_sta *link_sta; 3723 unsigned int link_id; 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_sta_active_link(vif, sta, link_sta, link_id) { 3750 struct ieee80211_bss_conf *link_conf = 3751 link_conf_dereference_protected(vif, link_id); 3752 3753 if (WARN_ON(!link_conf)) 3754 return -EINVAL; 3755 if (!mvmvif->link[link_id]) 3756 continue; 3757 3758 iwl_mvm_link_changed(mvm, vif, link_conf, 3759 LINK_CONTEXT_MODIFY_ALL & 3760 ~LINK_CONTEXT_MODIFY_ACTIVE, 3761 true); 3762 } 3763 } 3764 3765 out: 3766 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3767 3768 return callbacks->update_sta(mvm, vif, sta); 3769 } 3770 3771 static int 3772 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3773 struct ieee80211_vif *vif, 3774 struct ieee80211_sta *sta, 3775 const struct iwl_mvm_sta_state_ops *callbacks) 3776 { 3777 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3778 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3779 3780 lockdep_assert_held(&mvm->mutex); 3781 3782 /* we don't support TDLS during DCM */ 3783 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3784 iwl_mvm_teardown_tdls_peers(mvm); 3785 3786 if (sta->tdls) { 3787 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3788 NL80211_TDLS_ENABLE_LINK); 3789 } else { 3790 /* enable beacon filtering */ 3791 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3792 3793 mvmvif->authorized = 1; 3794 3795 callbacks->mac_ctxt_changed(mvm, vif, false); 3796 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3797 } 3798 3799 mvm_sta->authorized = true; 3800 3801 /* MFP is set by default before the station is authorized. 3802 * Clear it here in case it's not used. 3803 */ 3804 if (!sta->mfp) { 3805 int ret = callbacks->update_sta(mvm, vif, sta); 3806 3807 if (ret) 3808 return ret; 3809 } 3810 3811 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3812 3813 return 0; 3814 } 3815 3816 static int 3817 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3818 struct ieee80211_vif *vif, 3819 struct ieee80211_sta *sta, 3820 const struct iwl_mvm_sta_state_ops *callbacks) 3821 { 3822 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3823 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3824 3825 lockdep_assert_held(&mvm->mutex); 3826 3827 mvmsta->authorized = false; 3828 3829 /* once we move into assoc state, need to update rate scale to 3830 * disable using wide bandwidth 3831 */ 3832 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3833 3834 if (!sta->tdls) { 3835 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3836 * yet to avoid sending high prio again for a little 3837 * time. 3838 */ 3839 mvmvif->authorized = 0; 3840 3841 /* disable beacon filtering */ 3842 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3843 } 3844 3845 return 0; 3846 } 3847 3848 /* Common part for MLD and non-MLD modes */ 3849 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3850 struct ieee80211_vif *vif, 3851 struct ieee80211_sta *sta, 3852 enum ieee80211_sta_state old_state, 3853 enum ieee80211_sta_state new_state, 3854 const struct iwl_mvm_sta_state_ops *callbacks) 3855 { 3856 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3857 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3858 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3859 struct ieee80211_link_sta *link_sta; 3860 unsigned int link_id; 3861 int ret; 3862 3863 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3864 sta->addr, old_state, new_state); 3865 3866 /* 3867 * If we are in a STA removal flow and in DQA mode: 3868 * 3869 * This is after the sync_rcu part, so the queues have already been 3870 * flushed. No more TXs on their way in mac80211's path, and no more in 3871 * the queues. 3872 * Also, we won't be getting any new TX frames for this station. 3873 * What we might have are deferred TX frames that need to be taken care 3874 * of. 3875 * 3876 * Drop any still-queued deferred-frame before removing the STA, and 3877 * make sure the worker is no longer handling frames for this STA. 3878 */ 3879 if (old_state == IEEE80211_STA_NONE && 3880 new_state == IEEE80211_STA_NOTEXIST) { 3881 flush_work(&mvm->add_stream_wk); 3882 3883 /* 3884 * No need to make sure deferred TX indication is off since the 3885 * worker will already remove it if it was on 3886 */ 3887 3888 /* 3889 * Additionally, reset the 40 MHz capability if we disconnected 3890 * from the AP now. 3891 */ 3892 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3893 3894 /* Also free dup data just in case any assertions below fail */ 3895 kfree(mvm_sta->dup_data); 3896 } 3897 3898 mutex_lock(&mvm->mutex); 3899 3900 /* this would be a mac80211 bug ... but don't crash */ 3901 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3902 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3903 mutex_unlock(&mvm->mutex); 3904 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3905 &mvm->status) ? 0 : -EINVAL; 3906 } 3907 } 3908 3909 /* track whether or not the station is associated */ 3910 mvm_sta->sta_state = new_state; 3911 3912 if (old_state == IEEE80211_STA_NOTEXIST && 3913 new_state == IEEE80211_STA_NONE) { 3914 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3915 callbacks); 3916 if (ret < 0) 3917 goto out_unlock; 3918 } else if (old_state == IEEE80211_STA_NONE && 3919 new_state == IEEE80211_STA_AUTH) { 3920 /* 3921 * EBS may be disabled due to previous failures reported by FW. 3922 * Reset EBS status here assuming environment has been changed. 3923 */ 3924 mvm->last_ebs_successful = true; 3925 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3926 ret = 0; 3927 } else if (old_state == IEEE80211_STA_AUTH && 3928 new_state == IEEE80211_STA_ASSOC) { 3929 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3930 callbacks); 3931 } else if (old_state == IEEE80211_STA_ASSOC && 3932 new_state == IEEE80211_STA_AUTHORIZED) { 3933 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3934 callbacks); 3935 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3936 new_state == IEEE80211_STA_ASSOC) { 3937 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3938 callbacks); 3939 } else if (old_state == IEEE80211_STA_ASSOC && 3940 new_state == IEEE80211_STA_AUTH) { 3941 if (vif->type == NL80211_IFTYPE_AP) { 3942 mvmvif->ap_assoc_sta_count--; 3943 callbacks->mac_ctxt_changed(mvm, vif, false); 3944 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3945 iwl_mvm_stop_session_protection(mvm, vif); 3946 ret = 0; 3947 } else if (old_state == IEEE80211_STA_AUTH && 3948 new_state == IEEE80211_STA_NONE) { 3949 ret = 0; 3950 } else if (old_state == IEEE80211_STA_NONE && 3951 new_state == IEEE80211_STA_NOTEXIST) { 3952 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3953 iwl_mvm_stop_session_protection(mvm, vif); 3954 mvmvif->ap_sta = NULL; 3955 } 3956 ret = callbacks->rm_sta(mvm, vif, sta); 3957 if (sta->tdls) { 3958 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3959 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3960 NL80211_TDLS_DISABLE_LINK); 3961 } 3962 3963 if (unlikely(ret && 3964 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3965 &mvm->status))) 3966 ret = 0; 3967 } else { 3968 ret = -EIO; 3969 } 3970 out_unlock: 3971 mutex_unlock(&mvm->mutex); 3972 3973 if (sta->tdls && ret == 0) { 3974 if (old_state == IEEE80211_STA_NOTEXIST && 3975 new_state == IEEE80211_STA_NONE) 3976 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3977 else if (old_state == IEEE80211_STA_NONE && 3978 new_state == IEEE80211_STA_NOTEXIST) 3979 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3980 } 3981 3982 return ret; 3983 } 3984 3985 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3986 { 3987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3988 3989 mvm->rts_threshold = value; 3990 3991 return 0; 3992 } 3993 3994 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3995 struct ieee80211_sta *sta, u32 changed) 3996 { 3997 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3998 3999 if (changed & (IEEE80211_RC_BW_CHANGED | 4000 IEEE80211_RC_SUPP_RATES_CHANGED | 4001 IEEE80211_RC_NSS_CHANGED)) 4002 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4003 4004 if (vif->type == NL80211_IFTYPE_STATION && 4005 changed & IEEE80211_RC_NSS_CHANGED) 4006 iwl_mvm_sf_update(mvm, vif, false); 4007 } 4008 4009 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4010 struct ieee80211_vif *vif, 4011 unsigned int link_id, u16 ac, 4012 const struct ieee80211_tx_queue_params *params) 4013 { 4014 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4015 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4016 4017 mvmvif->deflink.queue_params[ac] = *params; 4018 4019 /* 4020 * No need to update right away, we'll get BSS_CHANGED_QOS 4021 * The exception is P2P_DEVICE interface which needs immediate update. 4022 */ 4023 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4024 int ret; 4025 4026 mutex_lock(&mvm->mutex); 4027 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4028 mutex_unlock(&mvm->mutex); 4029 return ret; 4030 } 4031 return 0; 4032 } 4033 4034 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4035 struct ieee80211_vif *vif, 4036 struct ieee80211_prep_tx_info *info) 4037 { 4038 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4039 4040 mutex_lock(&mvm->mutex); 4041 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4042 mutex_unlock(&mvm->mutex); 4043 } 4044 4045 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4046 struct ieee80211_vif *vif, 4047 struct ieee80211_prep_tx_info *info) 4048 { 4049 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4050 4051 /* for successful cases (auth/assoc), don't cancel session protection */ 4052 if (info->success) 4053 return; 4054 4055 mutex_lock(&mvm->mutex); 4056 iwl_mvm_stop_session_protection(mvm, vif); 4057 mutex_unlock(&mvm->mutex); 4058 } 4059 4060 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4061 struct ieee80211_vif *vif, 4062 struct cfg80211_sched_scan_request *req, 4063 struct ieee80211_scan_ies *ies) 4064 { 4065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4066 4067 int ret; 4068 4069 mutex_lock(&mvm->mutex); 4070 4071 if (!vif->cfg.idle) { 4072 ret = -EBUSY; 4073 goto out; 4074 } 4075 4076 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4077 4078 out: 4079 mutex_unlock(&mvm->mutex); 4080 return ret; 4081 } 4082 4083 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4084 struct ieee80211_vif *vif) 4085 { 4086 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4087 int ret; 4088 4089 mutex_lock(&mvm->mutex); 4090 4091 /* Due to a race condition, it's possible that mac80211 asks 4092 * us to stop a sched_scan when it's already stopped. This 4093 * can happen, for instance, if we stopped the scan ourselves, 4094 * called ieee80211_sched_scan_stopped() and the userspace called 4095 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4096 * could run. To handle this, simply return if the scan is 4097 * not running. 4098 */ 4099 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4100 mutex_unlock(&mvm->mutex); 4101 return 0; 4102 } 4103 4104 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4105 mutex_unlock(&mvm->mutex); 4106 iwl_mvm_wait_for_async_handlers(mvm); 4107 4108 return ret; 4109 } 4110 4111 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4112 enum set_key_cmd cmd, 4113 struct ieee80211_vif *vif, 4114 struct ieee80211_sta *sta, 4115 struct ieee80211_key_conf *key) 4116 { 4117 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4119 struct iwl_mvm_sta *mvmsta = NULL; 4120 struct iwl_mvm_key_pn *ptk_pn = NULL; 4121 int keyidx = key->keyidx; 4122 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4123 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4124 int ret, i; 4125 u8 key_offset; 4126 4127 if (sta) 4128 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4129 4130 switch (key->cipher) { 4131 case WLAN_CIPHER_SUITE_TKIP: 4132 if (!mvm->trans->trans_cfg->gen2) { 4133 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4134 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4135 } else if (vif->type == NL80211_IFTYPE_STATION) { 4136 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4137 } else { 4138 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4139 return -EOPNOTSUPP; 4140 } 4141 break; 4142 case WLAN_CIPHER_SUITE_CCMP: 4143 case WLAN_CIPHER_SUITE_GCMP: 4144 case WLAN_CIPHER_SUITE_GCMP_256: 4145 if (!iwl_mvm_has_new_tx_api(mvm)) 4146 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4147 break; 4148 case WLAN_CIPHER_SUITE_AES_CMAC: 4149 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4150 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4151 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4152 break; 4153 case WLAN_CIPHER_SUITE_WEP40: 4154 case WLAN_CIPHER_SUITE_WEP104: 4155 if (vif->type == NL80211_IFTYPE_STATION) 4156 break; 4157 if (iwl_mvm_has_new_tx_api(mvm)) 4158 return -EOPNOTSUPP; 4159 /* support HW crypto on TX */ 4160 return 0; 4161 default: 4162 return -EOPNOTSUPP; 4163 } 4164 4165 switch (cmd) { 4166 case SET_KEY: 4167 if (vif->type == NL80211_IFTYPE_STATION && 4168 (keyidx == 6 || keyidx == 7)) 4169 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4170 key); 4171 4172 if ((vif->type == NL80211_IFTYPE_ADHOC || 4173 vif->type == NL80211_IFTYPE_AP) && !sta) { 4174 /* 4175 * GTK on AP interface is a TX-only key, return 0; 4176 * on IBSS they're per-station and because we're lazy 4177 * we don't support them for RX, so do the same. 4178 * CMAC/GMAC in AP/IBSS modes must be done in software. 4179 * 4180 * Except, of course, beacon protection - it must be 4181 * offloaded since we just set a beacon template. 4182 */ 4183 if (keyidx < 6 && 4184 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4185 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4186 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4187 ret = -EOPNOTSUPP; 4188 break; 4189 } 4190 4191 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4192 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4193 !iwl_mvm_has_new_tx_api(mvm)) { 4194 key->hw_key_idx = STA_KEY_IDX_INVALID; 4195 ret = 0; 4196 break; 4197 } 4198 4199 if (!mvmvif->ap_ibss_active) { 4200 for (i = 0; 4201 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4202 i++) { 4203 if (!mvmvif->ap_early_keys[i]) { 4204 mvmvif->ap_early_keys[i] = key; 4205 break; 4206 } 4207 } 4208 4209 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4210 ret = -ENOSPC; 4211 else 4212 ret = 0; 4213 4214 break; 4215 } 4216 } 4217 4218 /* During FW restart, in order to restore the state as it was, 4219 * don't try to reprogram keys we previously failed for. 4220 */ 4221 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4222 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4223 IWL_DEBUG_MAC80211(mvm, 4224 "skip invalid idx key programming during restart\n"); 4225 ret = 0; 4226 break; 4227 } 4228 4229 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4230 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4231 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4232 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4233 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4234 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4235 struct ieee80211_key_seq seq; 4236 int tid, q; 4237 4238 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4239 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4240 mvm->trans->num_rx_queues), 4241 GFP_KERNEL); 4242 if (!ptk_pn) { 4243 ret = -ENOMEM; 4244 break; 4245 } 4246 4247 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4248 ieee80211_get_key_rx_seq(key, tid, &seq); 4249 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4250 memcpy(ptk_pn->q[q].pn[tid], 4251 seq.ccmp.pn, 4252 IEEE80211_CCMP_PN_LEN); 4253 } 4254 4255 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4256 } 4257 4258 /* in HW restart reuse the index, otherwise request a new one */ 4259 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4260 key_offset = key->hw_key_idx; 4261 else 4262 key_offset = STA_KEY_IDX_INVALID; 4263 4264 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4265 mvmsta->pairwise_cipher = key->cipher; 4266 4267 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4268 sta ? sta->addr : NULL, key->keyidx); 4269 4270 if (sec_key_ver) 4271 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4272 else 4273 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4274 4275 if (ret) { 4276 IWL_WARN(mvm, "set key failed\n"); 4277 key->hw_key_idx = STA_KEY_IDX_INVALID; 4278 if (ptk_pn) { 4279 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4280 kfree(ptk_pn); 4281 } 4282 /* 4283 * can't add key for RX, but we don't need it 4284 * in the device for TX so still return 0, 4285 * unless we have new TX API where we cannot 4286 * put key material into the TX_CMD 4287 */ 4288 if (iwl_mvm_has_new_tx_api(mvm)) 4289 ret = -EOPNOTSUPP; 4290 else 4291 ret = 0; 4292 } 4293 4294 break; 4295 case DISABLE_KEY: 4296 if (vif->type == NL80211_IFTYPE_STATION && 4297 (keyidx == 6 || keyidx == 7)) 4298 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4299 NULL); 4300 4301 ret = -ENOENT; 4302 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4303 if (mvmvif->ap_early_keys[i] == key) { 4304 mvmvif->ap_early_keys[i] = NULL; 4305 ret = 0; 4306 } 4307 } 4308 4309 /* found in pending list - don't do anything else */ 4310 if (ret == 0) 4311 break; 4312 4313 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4314 ret = 0; 4315 break; 4316 } 4317 4318 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4319 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4320 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4321 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4322 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4323 ptk_pn = rcu_dereference_protected( 4324 mvmsta->ptk_pn[keyidx], 4325 lockdep_is_held(&mvm->mutex)); 4326 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4327 if (ptk_pn) 4328 kfree_rcu(ptk_pn, rcu_head); 4329 } 4330 4331 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4332 if (sec_key_ver) 4333 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4334 else 4335 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4336 break; 4337 default: 4338 ret = -EINVAL; 4339 } 4340 4341 return ret; 4342 } 4343 4344 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4345 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4346 struct ieee80211_key_conf *key) 4347 { 4348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4349 int ret; 4350 4351 mutex_lock(&mvm->mutex); 4352 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4353 mutex_unlock(&mvm->mutex); 4354 4355 return ret; 4356 } 4357 4358 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4359 struct ieee80211_vif *vif, 4360 struct ieee80211_key_conf *keyconf, 4361 struct ieee80211_sta *sta, 4362 u32 iv32, u16 *phase1key) 4363 { 4364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4365 4366 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4367 return; 4368 4369 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4370 } 4371 4372 4373 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4374 struct iwl_rx_packet *pkt, void *data) 4375 { 4376 struct iwl_mvm *mvm = 4377 container_of(notif_wait, struct iwl_mvm, notif_wait); 4378 struct iwl_hs20_roc_res *resp; 4379 int resp_len = iwl_rx_packet_payload_len(pkt); 4380 struct iwl_mvm_time_event_data *te_data = data; 4381 4382 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4383 return true; 4384 4385 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4386 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4387 return true; 4388 } 4389 4390 resp = (void *)pkt->data; 4391 4392 IWL_DEBUG_TE(mvm, 4393 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4394 resp->status, resp->event_unique_id); 4395 4396 te_data->uid = le32_to_cpu(resp->event_unique_id); 4397 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4398 te_data->uid); 4399 4400 spin_lock_bh(&mvm->time_event_lock); 4401 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4402 spin_unlock_bh(&mvm->time_event_lock); 4403 4404 return true; 4405 } 4406 4407 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4408 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4409 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4410 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4411 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4412 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4413 struct ieee80211_channel *channel, 4414 struct ieee80211_vif *vif, 4415 int duration) 4416 { 4417 int res; 4418 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4419 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4420 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4421 struct iwl_notification_wait wait_time_event; 4422 u32 dtim_interval = vif->bss_conf.dtim_period * 4423 vif->bss_conf.beacon_int; 4424 u32 req_dur, delay; 4425 struct iwl_hs20_roc_req aux_roc_req = { 4426 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4427 .id_and_color = 4428 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4429 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4430 }; 4431 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4432 &aux_roc_req.channel_info); 4433 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4434 4435 /* Set the channel info data */ 4436 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4437 iwl_mvm_phy_band_from_nl80211(channel->band), 4438 IWL_PHY_CHANNEL_MODE20, 4439 0); 4440 4441 /* Set the time and duration */ 4442 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4443 4444 delay = AUX_ROC_MIN_DELAY; 4445 req_dur = MSEC_TO_TU(duration); 4446 4447 /* 4448 * If we are associated we want the delay time to be at least one 4449 * dtim interval so that the FW can wait until after the DTIM and 4450 * then start the time event, this will potentially allow us to 4451 * remain off-channel for the max duration. 4452 * Since we want to use almost a whole dtim interval we would also 4453 * like the delay to be for 2-3 dtim intervals, in case there are 4454 * other time events with higher priority. 4455 */ 4456 if (vif->cfg.assoc) { 4457 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4458 /* We cannot remain off-channel longer than the DTIM interval */ 4459 if (dtim_interval <= req_dur) { 4460 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4461 if (req_dur <= AUX_ROC_MIN_DURATION) 4462 req_dur = dtim_interval - 4463 AUX_ROC_MIN_SAFETY_BUFFER; 4464 } 4465 } 4466 4467 tail->duration = cpu_to_le32(req_dur); 4468 tail->apply_time_max_delay = cpu_to_le32(delay); 4469 4470 IWL_DEBUG_TE(mvm, 4471 "ROC: Requesting to remain on channel %u for %ums\n", 4472 channel->hw_value, req_dur); 4473 IWL_DEBUG_TE(mvm, 4474 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4475 duration, delay, dtim_interval); 4476 4477 /* Set the node address */ 4478 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4479 4480 lockdep_assert_held(&mvm->mutex); 4481 4482 spin_lock_bh(&mvm->time_event_lock); 4483 4484 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4485 spin_unlock_bh(&mvm->time_event_lock); 4486 return -EIO; 4487 } 4488 4489 te_data->vif = vif; 4490 te_data->duration = duration; 4491 te_data->id = HOT_SPOT_CMD; 4492 4493 spin_unlock_bh(&mvm->time_event_lock); 4494 4495 /* 4496 * Use a notification wait, which really just processes the 4497 * command response and doesn't wait for anything, in order 4498 * to be able to process the response and get the UID inside 4499 * the RX path. Using CMD_WANT_SKB doesn't work because it 4500 * stores the buffer and then wakes up this thread, by which 4501 * time another notification (that the time event started) 4502 * might already be processed unsuccessfully. 4503 */ 4504 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4505 time_event_response, 4506 ARRAY_SIZE(time_event_response), 4507 iwl_mvm_rx_aux_roc, te_data); 4508 4509 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4510 &aux_roc_req); 4511 4512 if (res) { 4513 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4514 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4515 goto out_clear_te; 4516 } 4517 4518 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4519 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4520 /* should never fail */ 4521 WARN_ON_ONCE(res); 4522 4523 if (res) { 4524 out_clear_te: 4525 spin_lock_bh(&mvm->time_event_lock); 4526 iwl_mvm_te_clear_data(mvm, te_data); 4527 spin_unlock_bh(&mvm->time_event_lock); 4528 } 4529 4530 return res; 4531 } 4532 4533 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4534 { 4535 int ret = 0; 4536 4537 lockdep_assert_held(&mvm->mutex); 4538 4539 if (!fw_has_capa(&mvm->fw->ucode_capa, 4540 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4541 IWL_ERR(mvm, "hotspot not supported\n"); 4542 return -EINVAL; 4543 } 4544 4545 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4546 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4547 WARN(ret, "Failed to allocate aux station"); 4548 } 4549 4550 return ret; 4551 } 4552 4553 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4554 { 4555 int ret; 4556 4557 lockdep_assert_held(&mvm->mutex); 4558 4559 ret = iwl_mvm_binding_add_vif(mvm, vif); 4560 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4561 return ret; 4562 4563 /* The station and queue allocation must be done only after the binding 4564 * is done, as otherwise the FW might incorrectly configure its state. 4565 */ 4566 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4567 } 4568 4569 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4570 struct ieee80211_vif *vif, 4571 struct ieee80211_channel *channel, 4572 int duration, 4573 enum ieee80211_roc_type type) 4574 { 4575 static const struct iwl_mvm_roc_ops ops = { 4576 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4577 .link = iwl_mvm_roc_link, 4578 }; 4579 4580 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4581 } 4582 4583 /* Execute the common part for MLD and non-MLD modes */ 4584 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4585 struct ieee80211_channel *channel, int duration, 4586 enum ieee80211_roc_type type, 4587 const struct iwl_mvm_roc_ops *ops) 4588 { 4589 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4590 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4591 struct cfg80211_chan_def chandef; 4592 struct iwl_mvm_phy_ctxt *phy_ctxt; 4593 int ret, i; 4594 u32 lmac_id; 4595 4596 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4597 duration, type); 4598 4599 /* 4600 * Flush the done work, just in case it's still pending, so that 4601 * the work it does can complete and we can accept new frames. 4602 */ 4603 flush_work(&mvm->roc_done_wk); 4604 4605 mutex_lock(&mvm->mutex); 4606 4607 switch (vif->type) { 4608 case NL80211_IFTYPE_STATION: 4609 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4610 4611 /* Use aux roc framework (HS20) */ 4612 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4613 if (!ret) 4614 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4615 vif, duration); 4616 goto out_unlock; 4617 case NL80211_IFTYPE_P2P_DEVICE: 4618 /* handle below */ 4619 break; 4620 default: 4621 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4622 ret = -EINVAL; 4623 goto out_unlock; 4624 } 4625 4626 /* Try using a PHY context that is already in use */ 4627 for (i = 0; i < NUM_PHY_CTX; i++) { 4628 phy_ctxt = &mvm->phy_ctxts[i]; 4629 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4630 continue; 4631 4632 if (channel == phy_ctxt->channel) { 4633 if (mvmvif->deflink.phy_ctxt) 4634 iwl_mvm_phy_ctxt_unref(mvm, 4635 mvmvif->deflink.phy_ctxt); 4636 4637 mvmvif->deflink.phy_ctxt = phy_ctxt; 4638 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4639 goto link_and_start_p2p_roc; 4640 } 4641 } 4642 4643 /* If the currently used PHY context is configured with a matching 4644 * channel use it 4645 */ 4646 if (mvmvif->deflink.phy_ctxt) { 4647 if (channel == mvmvif->deflink.phy_ctxt->channel) 4648 goto link_and_start_p2p_roc; 4649 } else { 4650 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4651 if (!phy_ctxt) { 4652 ret = -ENOSPC; 4653 goto out_unlock; 4654 } 4655 4656 mvmvif->deflink.phy_ctxt = phy_ctxt; 4657 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4658 } 4659 4660 /* Configure the PHY context */ 4661 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4662 4663 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4664 1, 1); 4665 if (ret) { 4666 IWL_ERR(mvm, "Failed to change PHY context\n"); 4667 goto out_unlock; 4668 } 4669 4670 link_and_start_p2p_roc: 4671 ret = ops->link(mvm, vif); 4672 if (ret) 4673 goto out_unlock; 4674 4675 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4676 out_unlock: 4677 mutex_unlock(&mvm->mutex); 4678 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4679 return ret; 4680 } 4681 4682 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4683 struct ieee80211_vif *vif) 4684 { 4685 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4686 4687 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4688 4689 mutex_lock(&mvm->mutex); 4690 iwl_mvm_stop_roc(mvm, vif); 4691 mutex_unlock(&mvm->mutex); 4692 4693 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4694 return 0; 4695 } 4696 4697 struct iwl_mvm_ftm_responder_iter_data { 4698 bool responder; 4699 struct ieee80211_chanctx_conf *ctx; 4700 }; 4701 4702 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4703 struct ieee80211_vif *vif) 4704 { 4705 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4706 4707 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4708 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4709 data->responder = true; 4710 } 4711 4712 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4713 struct ieee80211_chanctx_conf *ctx) 4714 { 4715 struct iwl_mvm_ftm_responder_iter_data data = { 4716 .responder = false, 4717 .ctx = ctx, 4718 }; 4719 4720 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4721 IEEE80211_IFACE_ITER_NORMAL, 4722 iwl_mvm_ftm_responder_chanctx_iter, 4723 &data); 4724 return data.responder; 4725 } 4726 4727 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4728 struct ieee80211_chanctx_conf *ctx) 4729 { 4730 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4731 struct iwl_mvm_phy_ctxt *phy_ctxt; 4732 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4733 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4734 int ret; 4735 4736 lockdep_assert_held(&mvm->mutex); 4737 4738 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4739 4740 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4741 if (!phy_ctxt) { 4742 ret = -ENOSPC; 4743 goto out; 4744 } 4745 4746 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4747 ctx->rx_chains_static, 4748 ctx->rx_chains_dynamic); 4749 if (ret) { 4750 IWL_ERR(mvm, "Failed to add PHY context\n"); 4751 goto out; 4752 } 4753 4754 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4755 *phy_ctxt_id = phy_ctxt->id; 4756 out: 4757 return ret; 4758 } 4759 4760 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4761 struct ieee80211_chanctx_conf *ctx) 4762 { 4763 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4764 int ret; 4765 4766 mutex_lock(&mvm->mutex); 4767 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4768 mutex_unlock(&mvm->mutex); 4769 4770 return ret; 4771 } 4772 4773 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4774 struct ieee80211_chanctx_conf *ctx) 4775 { 4776 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4777 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4778 4779 lockdep_assert_held(&mvm->mutex); 4780 4781 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4782 } 4783 4784 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4785 struct ieee80211_chanctx_conf *ctx) 4786 { 4787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4788 4789 mutex_lock(&mvm->mutex); 4790 __iwl_mvm_remove_chanctx(mvm, ctx); 4791 mutex_unlock(&mvm->mutex); 4792 } 4793 4794 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4795 struct ieee80211_chanctx_conf *ctx, u32 changed) 4796 { 4797 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4798 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4799 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4800 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4801 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4802 4803 if (WARN_ONCE((phy_ctxt->ref > 1) && 4804 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4805 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4806 IEEE80211_CHANCTX_CHANGE_RADAR | 4807 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4808 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4809 phy_ctxt->ref, changed)) 4810 return; 4811 4812 mutex_lock(&mvm->mutex); 4813 4814 /* we are only changing the min_width, may be a noop */ 4815 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4816 if (phy_ctxt->width == def->width) 4817 goto out_unlock; 4818 4819 /* we are just toggling between 20_NOHT and 20 */ 4820 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4821 def->width <= NL80211_CHAN_WIDTH_20) 4822 goto out_unlock; 4823 } 4824 4825 iwl_mvm_bt_coex_vif_change(mvm); 4826 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4827 ctx->rx_chains_static, 4828 ctx->rx_chains_dynamic); 4829 4830 out_unlock: 4831 mutex_unlock(&mvm->mutex); 4832 } 4833 4834 /* 4835 * This function executes the common part for MLD and non-MLD modes. 4836 * 4837 * Returns true if we're done assigning the chanctx 4838 * (either on failure or success) 4839 */ 4840 static bool 4841 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4842 struct ieee80211_vif *vif, 4843 struct ieee80211_chanctx_conf *ctx, 4844 bool switching_chanctx, int *ret) 4845 { 4846 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4847 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4848 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4849 4850 lockdep_assert_held(&mvm->mutex); 4851 4852 mvmvif->deflink.phy_ctxt = phy_ctxt; 4853 4854 switch (vif->type) { 4855 case NL80211_IFTYPE_AP: 4856 /* only needed if we're switching chanctx (i.e. during CSA) */ 4857 if (switching_chanctx) { 4858 mvmvif->ap_ibss_active = true; 4859 break; 4860 } 4861 fallthrough; 4862 case NL80211_IFTYPE_ADHOC: 4863 /* 4864 * The AP binding flow is handled as part of the start_ap flow 4865 * (in bss_info_changed), similarly for IBSS. 4866 */ 4867 *ret = 0; 4868 return true; 4869 case NL80211_IFTYPE_STATION: 4870 break; 4871 case NL80211_IFTYPE_MONITOR: 4872 /* always disable PS when a monitor interface is active */ 4873 mvmvif->ps_disabled = true; 4874 break; 4875 default: 4876 *ret = -EINVAL; 4877 return true; 4878 } 4879 return false; 4880 } 4881 4882 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4883 struct ieee80211_vif *vif, 4884 struct ieee80211_bss_conf *link_conf, 4885 struct ieee80211_chanctx_conf *ctx, 4886 bool switching_chanctx) 4887 { 4888 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4889 int ret; 4890 4891 if (WARN_ON(!link_conf)) 4892 return -EINVAL; 4893 4894 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4895 switching_chanctx, &ret)) 4896 goto out; 4897 4898 ret = iwl_mvm_binding_add_vif(mvm, vif); 4899 if (ret) 4900 goto out; 4901 4902 /* 4903 * Power state must be updated before quotas, 4904 * otherwise fw will complain. 4905 */ 4906 iwl_mvm_power_update_mac(mvm); 4907 4908 /* Setting the quota at this stage is only required for monitor 4909 * interfaces. For the other types, the bss_info changed flow 4910 * will handle quota settings. 4911 */ 4912 if (vif->type == NL80211_IFTYPE_MONITOR) { 4913 mvmvif->monitor_active = true; 4914 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4915 if (ret) 4916 goto out_remove_binding; 4917 4918 ret = iwl_mvm_add_snif_sta(mvm, vif); 4919 if (ret) 4920 goto out_remove_binding; 4921 4922 } 4923 4924 /* Handle binding during CSA */ 4925 if (vif->type == NL80211_IFTYPE_AP) { 4926 iwl_mvm_update_quotas(mvm, false, NULL); 4927 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4928 } 4929 4930 if (vif->type == NL80211_IFTYPE_STATION) { 4931 if (!switching_chanctx) { 4932 mvmvif->csa_bcn_pending = false; 4933 goto out; 4934 } 4935 4936 mvmvif->csa_bcn_pending = true; 4937 4938 if (!fw_has_capa(&mvm->fw->ucode_capa, 4939 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4940 u32 duration = 3 * vif->bss_conf.beacon_int; 4941 4942 /* Protect the session to make sure we hear the first 4943 * beacon on the new channel. 4944 */ 4945 iwl_mvm_protect_session(mvm, vif, duration, duration, 4946 vif->bss_conf.beacon_int / 2, 4947 true); 4948 } 4949 4950 iwl_mvm_update_quotas(mvm, false, NULL); 4951 } 4952 4953 goto out; 4954 4955 out_remove_binding: 4956 iwl_mvm_binding_remove_vif(mvm, vif); 4957 iwl_mvm_power_update_mac(mvm); 4958 out: 4959 if (ret) 4960 mvmvif->deflink.phy_ctxt = NULL; 4961 return ret; 4962 } 4963 4964 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4965 struct ieee80211_vif *vif, 4966 struct ieee80211_bss_conf *link_conf, 4967 struct ieee80211_chanctx_conf *ctx) 4968 { 4969 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4970 int ret; 4971 4972 mutex_lock(&mvm->mutex); 4973 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 4974 mutex_unlock(&mvm->mutex); 4975 4976 return ret; 4977 } 4978 4979 /* 4980 * This function executes the common part for MLD and non-MLD modes. 4981 * 4982 * Returns if chanctx unassign chanctx is done 4983 * (either on failure or success) 4984 */ 4985 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 4986 struct ieee80211_vif *vif, 4987 bool switching_chanctx) 4988 { 4989 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4990 4991 lockdep_assert_held(&mvm->mutex); 4992 iwl_mvm_remove_time_event(mvm, mvmvif, 4993 &mvmvif->time_event_data); 4994 4995 switch (vif->type) { 4996 case NL80211_IFTYPE_ADHOC: 4997 return true; 4998 case NL80211_IFTYPE_MONITOR: 4999 mvmvif->monitor_active = false; 5000 mvmvif->ps_disabled = false; 5001 break; 5002 case NL80211_IFTYPE_AP: 5003 /* This part is triggered only during CSA */ 5004 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5005 return true; 5006 5007 mvmvif->csa_countdown = false; 5008 5009 /* Set CS bit on all the stations */ 5010 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5011 5012 /* Save blocked iface, the timeout is set on the next beacon */ 5013 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5014 5015 mvmvif->ap_ibss_active = false; 5016 break; 5017 default: 5018 break; 5019 } 5020 return false; 5021 } 5022 5023 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5024 struct ieee80211_vif *vif, 5025 struct ieee80211_bss_conf *link_conf, 5026 struct ieee80211_chanctx_conf *ctx, 5027 bool switching_chanctx) 5028 { 5029 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5030 struct ieee80211_vif *disabled_vif = NULL; 5031 5032 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5033 goto out; 5034 5035 if (vif->type == NL80211_IFTYPE_MONITOR) 5036 iwl_mvm_rm_snif_sta(mvm, vif); 5037 5038 5039 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5040 disabled_vif = vif; 5041 if (!fw_has_capa(&mvm->fw->ucode_capa, 5042 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5043 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5044 } 5045 5046 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5047 iwl_mvm_binding_remove_vif(mvm, vif); 5048 5049 out: 5050 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5051 switching_chanctx) 5052 return; 5053 mvmvif->deflink.phy_ctxt = NULL; 5054 iwl_mvm_power_update_mac(mvm); 5055 } 5056 5057 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5058 struct ieee80211_vif *vif, 5059 struct ieee80211_bss_conf *link_conf, 5060 struct ieee80211_chanctx_conf *ctx) 5061 { 5062 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5063 5064 mutex_lock(&mvm->mutex); 5065 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5066 mutex_unlock(&mvm->mutex); 5067 } 5068 5069 static int 5070 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5071 struct ieee80211_vif_chanctx_switch *vifs, 5072 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5073 { 5074 int ret; 5075 5076 mutex_lock(&mvm->mutex); 5077 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5078 vifs[0].old_ctx, true); 5079 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5080 5081 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5082 if (ret) { 5083 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5084 goto out_reassign; 5085 } 5086 5087 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5088 vifs[0].new_ctx, true); 5089 if (ret) { 5090 IWL_ERR(mvm, 5091 "failed to assign new_ctx during channel switch\n"); 5092 goto out_remove; 5093 } 5094 5095 /* we don't support TDLS during DCM - can be caused by channel switch */ 5096 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5097 iwl_mvm_teardown_tdls_peers(mvm); 5098 5099 goto out; 5100 5101 out_remove: 5102 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5103 5104 out_reassign: 5105 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5106 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5107 goto out_restart; 5108 } 5109 5110 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5111 vifs[0].old_ctx, true)) { 5112 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5113 goto out_restart; 5114 } 5115 5116 goto out; 5117 5118 out_restart: 5119 /* things keep failing, better restart the hw */ 5120 iwl_mvm_nic_restart(mvm, false); 5121 5122 out: 5123 mutex_unlock(&mvm->mutex); 5124 5125 return ret; 5126 } 5127 5128 static int 5129 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5130 struct ieee80211_vif_chanctx_switch *vifs, 5131 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5132 { 5133 int ret; 5134 5135 mutex_lock(&mvm->mutex); 5136 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5137 vifs[0].old_ctx, true); 5138 5139 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5140 vifs[0].new_ctx, true); 5141 if (ret) { 5142 IWL_ERR(mvm, 5143 "failed to assign new_ctx during channel switch\n"); 5144 goto out_reassign; 5145 } 5146 5147 goto out; 5148 5149 out_reassign: 5150 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5151 vifs[0].old_ctx, true)) { 5152 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5153 goto out_restart; 5154 } 5155 5156 goto out; 5157 5158 out_restart: 5159 /* things keep failing, better restart the hw */ 5160 iwl_mvm_nic_restart(mvm, false); 5161 5162 out: 5163 mutex_unlock(&mvm->mutex); 5164 5165 return ret; 5166 } 5167 5168 /* Execute the common part for both MLD and non-MLD modes */ 5169 int 5170 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5171 struct ieee80211_vif_chanctx_switch *vifs, 5172 int n_vifs, 5173 enum ieee80211_chanctx_switch_mode mode, 5174 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5175 { 5176 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5177 int ret; 5178 5179 /* we only support a single-vif right now */ 5180 if (n_vifs > 1) 5181 return -EOPNOTSUPP; 5182 5183 switch (mode) { 5184 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5185 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5186 break; 5187 case CHANCTX_SWMODE_REASSIGN_VIF: 5188 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5189 break; 5190 default: 5191 ret = -EOPNOTSUPP; 5192 break; 5193 } 5194 5195 return ret; 5196 } 5197 5198 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5199 struct ieee80211_vif_chanctx_switch *vifs, 5200 int n_vifs, 5201 enum ieee80211_chanctx_switch_mode mode) 5202 { 5203 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5204 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5205 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5206 }; 5207 5208 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5209 } 5210 5211 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5212 { 5213 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5214 5215 return mvm->ibss_manager; 5216 } 5217 5218 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5219 bool set) 5220 { 5221 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5222 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5223 5224 if (!mvm_sta || !mvm_sta->vif) { 5225 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5226 return -EINVAL; 5227 } 5228 5229 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5230 &mvm_sta->vif->bss_conf); 5231 } 5232 5233 #ifdef CONFIG_NL80211_TESTMODE 5234 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5235 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5236 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5237 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5238 }; 5239 5240 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5241 struct ieee80211_vif *vif, 5242 void *data, int len) 5243 { 5244 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5245 int err; 5246 u32 noa_duration; 5247 5248 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5249 iwl_mvm_tm_policy, NULL); 5250 if (err) 5251 return err; 5252 5253 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5254 return -EINVAL; 5255 5256 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5257 case IWL_MVM_TM_CMD_SET_NOA: 5258 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5259 !vif->bss_conf.enable_beacon || 5260 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5261 return -EINVAL; 5262 5263 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5264 if (noa_duration >= vif->bss_conf.beacon_int) 5265 return -EINVAL; 5266 5267 mvm->noa_duration = noa_duration; 5268 mvm->noa_vif = vif; 5269 5270 return iwl_mvm_update_quotas(mvm, true, NULL); 5271 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5272 /* must be associated client vif - ignore authorized */ 5273 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5274 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5275 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5276 return -EINVAL; 5277 5278 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5279 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5280 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5281 } 5282 5283 return -EOPNOTSUPP; 5284 } 5285 5286 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5287 struct ieee80211_vif *vif, 5288 void *data, int len) 5289 { 5290 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5291 int err; 5292 5293 mutex_lock(&mvm->mutex); 5294 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5295 mutex_unlock(&mvm->mutex); 5296 5297 return err; 5298 } 5299 #endif 5300 5301 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5302 struct ieee80211_channel_switch *chsw) 5303 { 5304 /* By implementing this operation, we prevent mac80211 from 5305 * starting its own channel switch timer, so that we can call 5306 * ieee80211_chswitch_done() ourselves at the right time 5307 * (which is when the absence time event starts). 5308 */ 5309 5310 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5311 "dummy channel switch op\n"); 5312 } 5313 5314 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5315 struct ieee80211_vif *vif, 5316 struct ieee80211_channel_switch *chsw) 5317 { 5318 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5319 struct iwl_chan_switch_te_cmd cmd = { 5320 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5321 mvmvif->color)), 5322 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5323 .tsf = cpu_to_le32(chsw->timestamp), 5324 .cs_count = chsw->count, 5325 .cs_mode = chsw->block_tx, 5326 }; 5327 5328 lockdep_assert_held(&mvm->mutex); 5329 5330 if (chsw->delay) 5331 cmd.cs_delayed_bcn_count = 5332 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5333 5334 return iwl_mvm_send_cmd_pdu(mvm, 5335 WIDE_ID(MAC_CONF_GROUP, 5336 CHANNEL_SWITCH_TIME_EVENT_CMD), 5337 0, sizeof(cmd), &cmd); 5338 } 5339 5340 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5341 struct ieee80211_vif *vif, 5342 struct ieee80211_channel_switch *chsw) 5343 { 5344 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5345 u32 apply_time; 5346 5347 /* Schedule the time event to a bit before beacon 1, 5348 * to make sure we're in the new channel when the 5349 * GO/AP arrives. In case count <= 1 immediately schedule the 5350 * TE (this might result with some packet loss or connection 5351 * loss). 5352 */ 5353 if (chsw->count <= 1) 5354 apply_time = 0; 5355 else 5356 apply_time = chsw->device_timestamp + 5357 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5358 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5359 5360 if (chsw->block_tx) 5361 iwl_mvm_csa_client_absent(mvm, vif); 5362 5363 if (mvmvif->bf_data.bf_enabled) { 5364 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5365 5366 if (ret) 5367 return ret; 5368 } 5369 5370 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5371 apply_time); 5372 5373 return 0; 5374 } 5375 5376 #define IWL_MAX_CSA_BLOCK_TX 1500 5377 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5378 struct ieee80211_vif *vif, 5379 struct ieee80211_channel_switch *chsw) 5380 { 5381 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5382 struct ieee80211_vif *csa_vif; 5383 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5384 int ret; 5385 5386 mutex_lock(&mvm->mutex); 5387 5388 mvmvif->csa_failed = false; 5389 5390 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5391 chsw->chandef.center_freq1); 5392 5393 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5394 ieee80211_vif_to_wdev(vif), 5395 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5396 5397 switch (vif->type) { 5398 case NL80211_IFTYPE_AP: 5399 csa_vif = 5400 rcu_dereference_protected(mvm->csa_vif, 5401 lockdep_is_held(&mvm->mutex)); 5402 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5403 "Another CSA is already in progress")) { 5404 ret = -EBUSY; 5405 goto out_unlock; 5406 } 5407 5408 /* we still didn't unblock tx. prevent new CS meanwhile */ 5409 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5410 lockdep_is_held(&mvm->mutex))) { 5411 ret = -EBUSY; 5412 goto out_unlock; 5413 } 5414 5415 rcu_assign_pointer(mvm->csa_vif, vif); 5416 5417 if (WARN_ONCE(mvmvif->csa_countdown, 5418 "Previous CSA countdown didn't complete")) { 5419 ret = -EBUSY; 5420 goto out_unlock; 5421 } 5422 5423 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5424 5425 break; 5426 case NL80211_IFTYPE_STATION: 5427 /* 5428 * In the new flow FW is in charge of timing the switch so there 5429 * is no need for all of this 5430 */ 5431 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5432 CHANNEL_SWITCH_ERROR_NOTIF, 5433 0)) 5434 break; 5435 5436 /* 5437 * We haven't configured the firmware to be associated yet since 5438 * we don't know the dtim period. In this case, the firmware can't 5439 * track the beacons. 5440 */ 5441 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5442 ret = -EBUSY; 5443 goto out_unlock; 5444 } 5445 5446 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5447 schedule_delayed_work(&mvmvif->csa_work, 0); 5448 5449 if (chsw->block_tx) { 5450 /* 5451 * In case of undetermined / long time with immediate 5452 * quiet monitor status to gracefully disconnect 5453 */ 5454 if (!chsw->count || 5455 chsw->count * vif->bss_conf.beacon_int > 5456 IWL_MAX_CSA_BLOCK_TX) 5457 schedule_delayed_work(&mvmvif->csa_work, 5458 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5459 } 5460 5461 if (!fw_has_capa(&mvm->fw->ucode_capa, 5462 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5463 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5464 if (ret) 5465 goto out_unlock; 5466 } else { 5467 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5468 } 5469 5470 mvmvif->csa_count = chsw->count; 5471 mvmvif->csa_misbehave = false; 5472 break; 5473 default: 5474 break; 5475 } 5476 5477 mvmvif->ps_disabled = true; 5478 5479 ret = iwl_mvm_power_update_ps(mvm); 5480 if (ret) 5481 goto out_unlock; 5482 5483 /* we won't be on this channel any longer */ 5484 iwl_mvm_teardown_tdls_peers(mvm); 5485 5486 out_unlock: 5487 mutex_unlock(&mvm->mutex); 5488 5489 return ret; 5490 } 5491 5492 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5493 struct ieee80211_vif *vif, 5494 struct ieee80211_channel_switch *chsw) 5495 { 5496 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5497 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5498 struct iwl_chan_switch_te_cmd cmd = { 5499 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5500 mvmvif->color)), 5501 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5502 .tsf = cpu_to_le32(chsw->timestamp), 5503 .cs_count = chsw->count, 5504 .cs_mode = chsw->block_tx, 5505 }; 5506 5507 /* 5508 * In the new flow FW is in charge of timing the switch so there is no 5509 * need for all of this 5510 */ 5511 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5512 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5513 return; 5514 5515 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5516 return; 5517 5518 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5519 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5520 5521 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5522 if (mvmvif->csa_misbehave) { 5523 /* Second time, give up on this AP*/ 5524 iwl_mvm_abort_channel_switch(hw, vif); 5525 ieee80211_chswitch_done(vif, false); 5526 mvmvif->csa_misbehave = false; 5527 return; 5528 } 5529 mvmvif->csa_misbehave = true; 5530 } 5531 mvmvif->csa_count = chsw->count; 5532 5533 mutex_lock(&mvm->mutex); 5534 if (mvmvif->csa_failed) 5535 goto out_unlock; 5536 5537 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5538 WIDE_ID(MAC_CONF_GROUP, 5539 CHANNEL_SWITCH_TIME_EVENT_CMD), 5540 0, sizeof(cmd), &cmd)); 5541 out_unlock: 5542 mutex_unlock(&mvm->mutex); 5543 } 5544 5545 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5546 { 5547 int i; 5548 5549 if (!iwl_mvm_has_new_tx_api(mvm)) { 5550 if (drop) { 5551 mutex_lock(&mvm->mutex); 5552 iwl_mvm_flush_tx_path(mvm, 5553 iwl_mvm_flushable_queues(mvm) & queues); 5554 mutex_unlock(&mvm->mutex); 5555 } else { 5556 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5557 } 5558 return; 5559 } 5560 5561 mutex_lock(&mvm->mutex); 5562 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5563 struct ieee80211_sta *sta; 5564 5565 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5566 lockdep_is_held(&mvm->mutex)); 5567 if (IS_ERR_OR_NULL(sta)) 5568 continue; 5569 5570 if (drop) 5571 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5572 else 5573 iwl_mvm_wait_sta_queues_empty(mvm, 5574 iwl_mvm_sta_from_mac80211(sta)); 5575 } 5576 mutex_unlock(&mvm->mutex); 5577 } 5578 5579 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5580 u32 queues, bool drop) 5581 { 5582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5583 struct iwl_mvm_vif *mvmvif; 5584 struct iwl_mvm_sta *mvmsta; 5585 struct ieee80211_sta *sta; 5586 bool ap_sta_done = false; 5587 int i; 5588 u32 msk = 0; 5589 5590 if (!vif) { 5591 iwl_mvm_flush_no_vif(mvm, queues, drop); 5592 return; 5593 } 5594 5595 /* Make sure we're done with the deferred traffic before flushing */ 5596 flush_work(&mvm->add_stream_wk); 5597 5598 mutex_lock(&mvm->mutex); 5599 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5600 5601 /* flush the AP-station and all TDLS peers */ 5602 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5603 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5604 lockdep_is_held(&mvm->mutex)); 5605 if (IS_ERR_OR_NULL(sta)) 5606 continue; 5607 5608 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5609 if (mvmsta->vif != vif) 5610 continue; 5611 5612 if (sta == mvmvif->ap_sta) { 5613 if (ap_sta_done) 5614 continue; 5615 ap_sta_done = true; 5616 } 5617 5618 if (drop) { 5619 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5620 mvmsta->tfd_queue_msk)) 5621 IWL_ERR(mvm, "flush request fail\n"); 5622 } else { 5623 if (iwl_mvm_has_new_tx_api(mvm)) 5624 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5625 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5626 msk |= mvmsta->tfd_queue_msk; 5627 } 5628 } 5629 5630 mutex_unlock(&mvm->mutex); 5631 5632 /* this can take a while, and we may need/want other operations 5633 * to succeed while doing this, so do it without the mutex held 5634 */ 5635 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5636 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5637 } 5638 5639 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5640 struct ieee80211_sta *sta) 5641 { 5642 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5643 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5644 struct iwl_mvm_link_sta *mvm_link_sta; 5645 struct ieee80211_link_sta *link_sta; 5646 int link_id; 5647 5648 mutex_lock(&mvm->mutex); 5649 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5650 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5651 lockdep_is_held(&mvm->mutex)); 5652 if (!mvm_link_sta) 5653 continue; 5654 5655 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5656 mvmsta->tfd_queue_msk)) 5657 IWL_ERR(mvm, "flush request fail\n"); 5658 } 5659 mutex_unlock(&mvm->mutex); 5660 } 5661 5662 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5663 struct survey_info *survey) 5664 { 5665 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5666 int ret; 5667 5668 memset(survey, 0, sizeof(*survey)); 5669 5670 /* only support global statistics right now */ 5671 if (idx != 0) 5672 return -ENOENT; 5673 5674 if (!fw_has_capa(&mvm->fw->ucode_capa, 5675 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5676 return -ENOENT; 5677 5678 mutex_lock(&mvm->mutex); 5679 5680 if (iwl_mvm_firmware_running(mvm)) { 5681 ret = iwl_mvm_request_statistics(mvm, false); 5682 if (ret) 5683 goto out; 5684 } 5685 5686 survey->filled = SURVEY_INFO_TIME | 5687 SURVEY_INFO_TIME_RX | 5688 SURVEY_INFO_TIME_TX | 5689 SURVEY_INFO_TIME_SCAN; 5690 survey->time = mvm->accu_radio_stats.on_time_rf + 5691 mvm->radio_stats.on_time_rf; 5692 do_div(survey->time, USEC_PER_MSEC); 5693 5694 survey->time_rx = mvm->accu_radio_stats.rx_time + 5695 mvm->radio_stats.rx_time; 5696 do_div(survey->time_rx, USEC_PER_MSEC); 5697 5698 survey->time_tx = mvm->accu_radio_stats.tx_time + 5699 mvm->radio_stats.tx_time; 5700 do_div(survey->time_tx, USEC_PER_MSEC); 5701 5702 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5703 mvm->radio_stats.on_time_scan; 5704 do_div(survey->time_scan, USEC_PER_MSEC); 5705 5706 ret = 0; 5707 out: 5708 mutex_unlock(&mvm->mutex); 5709 return ret; 5710 } 5711 5712 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5713 { 5714 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5715 u32 gi_ltf; 5716 5717 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5718 case RATE_MCS_CHAN_WIDTH_20: 5719 rinfo->bw = RATE_INFO_BW_20; 5720 break; 5721 case RATE_MCS_CHAN_WIDTH_40: 5722 rinfo->bw = RATE_INFO_BW_40; 5723 break; 5724 case RATE_MCS_CHAN_WIDTH_80: 5725 rinfo->bw = RATE_INFO_BW_80; 5726 break; 5727 case RATE_MCS_CHAN_WIDTH_160: 5728 rinfo->bw = RATE_INFO_BW_160; 5729 break; 5730 case RATE_MCS_CHAN_WIDTH_320: 5731 rinfo->bw = RATE_INFO_BW_320; 5732 break; 5733 } 5734 5735 if (format == RATE_MCS_CCK_MSK || 5736 format == RATE_MCS_LEGACY_OFDM_MSK) { 5737 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5738 5739 /* add the offset needed to get to the legacy ofdm indices */ 5740 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5741 rate += IWL_FIRST_OFDM_RATE; 5742 5743 switch (rate) { 5744 case IWL_RATE_1M_INDEX: 5745 rinfo->legacy = 10; 5746 break; 5747 case IWL_RATE_2M_INDEX: 5748 rinfo->legacy = 20; 5749 break; 5750 case IWL_RATE_5M_INDEX: 5751 rinfo->legacy = 55; 5752 break; 5753 case IWL_RATE_11M_INDEX: 5754 rinfo->legacy = 110; 5755 break; 5756 case IWL_RATE_6M_INDEX: 5757 rinfo->legacy = 60; 5758 break; 5759 case IWL_RATE_9M_INDEX: 5760 rinfo->legacy = 90; 5761 break; 5762 case IWL_RATE_12M_INDEX: 5763 rinfo->legacy = 120; 5764 break; 5765 case IWL_RATE_18M_INDEX: 5766 rinfo->legacy = 180; 5767 break; 5768 case IWL_RATE_24M_INDEX: 5769 rinfo->legacy = 240; 5770 break; 5771 case IWL_RATE_36M_INDEX: 5772 rinfo->legacy = 360; 5773 break; 5774 case IWL_RATE_48M_INDEX: 5775 rinfo->legacy = 480; 5776 break; 5777 case IWL_RATE_54M_INDEX: 5778 rinfo->legacy = 540; 5779 } 5780 return; 5781 } 5782 5783 rinfo->nss = u32_get_bits(rate_n_flags, 5784 RATE_MCS_NSS_MSK) + 1; 5785 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5786 RATE_HT_MCS_INDEX(rate_n_flags) : 5787 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5788 5789 if (rate_n_flags & RATE_MCS_SGI_MSK) 5790 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5791 5792 switch (format) { 5793 case RATE_MCS_EHT_MSK: 5794 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5795 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5796 break; 5797 case RATE_MCS_HE_MSK: 5798 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5799 5800 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5801 5802 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5803 rinfo->bw = RATE_INFO_BW_HE_RU; 5804 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5805 } 5806 5807 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5808 case RATE_MCS_HE_TYPE_SU: 5809 case RATE_MCS_HE_TYPE_EXT_SU: 5810 if (gi_ltf == 0 || gi_ltf == 1) 5811 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5812 else if (gi_ltf == 2) 5813 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5814 else if (gi_ltf == 3) 5815 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5816 else 5817 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5818 break; 5819 case RATE_MCS_HE_TYPE_MU: 5820 if (gi_ltf == 0 || gi_ltf == 1) 5821 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5822 else if (gi_ltf == 2) 5823 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5824 else 5825 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5826 break; 5827 case RATE_MCS_HE_TYPE_TRIG: 5828 if (gi_ltf == 0 || gi_ltf == 1) 5829 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5830 else 5831 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5832 break; 5833 } 5834 5835 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5836 rinfo->he_dcm = 1; 5837 break; 5838 case RATE_MCS_HT_MSK: 5839 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5840 break; 5841 case RATE_MCS_VHT_MSK: 5842 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5843 break; 5844 } 5845 } 5846 5847 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5848 struct ieee80211_vif *vif, 5849 struct ieee80211_sta *sta, 5850 struct station_info *sinfo) 5851 { 5852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5853 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5854 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5855 5856 if (mvmsta->deflink.avg_energy) { 5857 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5858 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5859 } 5860 5861 if (iwl_mvm_has_tlc_offload(mvm)) { 5862 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5863 5864 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5865 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5866 } 5867 5868 /* if beacon filtering isn't on mac80211 does it anyway */ 5869 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5870 return; 5871 5872 if (!vif->cfg.assoc) 5873 return; 5874 5875 mutex_lock(&mvm->mutex); 5876 5877 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5878 goto unlock; 5879 5880 if (iwl_mvm_request_statistics(mvm, false)) 5881 goto unlock; 5882 5883 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5884 mvmvif->deflink.beacon_stats.accu_num_beacons; 5885 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5886 if (mvmvif->deflink.beacon_stats.avg_signal) { 5887 /* firmware only reports a value after RXing a few beacons */ 5888 sinfo->rx_beacon_signal_avg = 5889 mvmvif->deflink.beacon_stats.avg_signal; 5890 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5891 } 5892 unlock: 5893 mutex_unlock(&mvm->mutex); 5894 } 5895 5896 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5897 struct ieee80211_vif *vif, 5898 const struct ieee80211_mlme_event *mlme) 5899 { 5900 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5901 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5902 iwl_dbg_tlv_time_point(&mvm->fwrt, 5903 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5904 NULL); 5905 return; 5906 } 5907 5908 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5909 iwl_dbg_tlv_time_point(&mvm->fwrt, 5910 IWL_FW_INI_TIME_POINT_DEASSOC, 5911 NULL); 5912 return; 5913 } 5914 } 5915 5916 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5917 struct ieee80211_vif *vif, 5918 const struct ieee80211_event *event) 5919 { 5920 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5921 do { \ 5922 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5923 break; \ 5924 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5925 } while (0) 5926 5927 struct iwl_fw_dbg_trigger_tlv *trig; 5928 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5929 5930 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5931 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5932 return; 5933 } 5934 5935 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5936 FW_DBG_TRIGGER_MLME); 5937 if (!trig) 5938 return; 5939 5940 trig_mlme = (void *)trig->data; 5941 5942 if (event->u.mlme.data == ASSOC_EVENT) { 5943 if (event->u.mlme.status == MLME_DENIED) 5944 CHECK_MLME_TRIGGER(stop_assoc_denied, 5945 "DENIED ASSOC: reason %d", 5946 event->u.mlme.reason); 5947 else if (event->u.mlme.status == MLME_TIMEOUT) 5948 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5949 "ASSOC TIMEOUT"); 5950 } else if (event->u.mlme.data == AUTH_EVENT) { 5951 if (event->u.mlme.status == MLME_DENIED) 5952 CHECK_MLME_TRIGGER(stop_auth_denied, 5953 "DENIED AUTH: reason %d", 5954 event->u.mlme.reason); 5955 else if (event->u.mlme.status == MLME_TIMEOUT) 5956 CHECK_MLME_TRIGGER(stop_auth_timeout, 5957 "AUTH TIMEOUT"); 5958 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5959 CHECK_MLME_TRIGGER(stop_rx_deauth, 5960 "DEAUTH RX %d", event->u.mlme.reason); 5961 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5962 CHECK_MLME_TRIGGER(stop_tx_deauth, 5963 "DEAUTH TX %d", event->u.mlme.reason); 5964 } 5965 #undef CHECK_MLME_TRIGGER 5966 } 5967 5968 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5969 struct ieee80211_vif *vif, 5970 const struct ieee80211_event *event) 5971 { 5972 struct iwl_fw_dbg_trigger_tlv *trig; 5973 struct iwl_fw_dbg_trigger_ba *ba_trig; 5974 5975 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5976 FW_DBG_TRIGGER_BA); 5977 if (!trig) 5978 return; 5979 5980 ba_trig = (void *)trig->data; 5981 5982 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5983 return; 5984 5985 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5986 "BAR received from %pM, tid %d, ssn %d", 5987 event->u.ba.sta->addr, event->u.ba.tid, 5988 event->u.ba.ssn); 5989 } 5990 5991 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5992 struct ieee80211_vif *vif, 5993 const struct ieee80211_event *event) 5994 { 5995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5996 5997 switch (event->type) { 5998 case MLME_EVENT: 5999 iwl_mvm_event_mlme_callback(mvm, vif, event); 6000 break; 6001 case BAR_RX_EVENT: 6002 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6003 break; 6004 case BA_FRAME_TIMEOUT: 6005 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6006 event->u.ba.tid); 6007 break; 6008 default: 6009 break; 6010 } 6011 } 6012 6013 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6014 enum iwl_mvm_rxq_notif_type type, 6015 bool sync, 6016 const void *data, u32 size) 6017 { 6018 struct { 6019 struct iwl_rxq_sync_cmd cmd; 6020 struct iwl_mvm_internal_rxq_notif notif; 6021 } __packed cmd = { 6022 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6023 .cmd.count = 6024 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6025 size), 6026 .notif.type = type, 6027 .notif.sync = sync, 6028 }; 6029 struct iwl_host_cmd hcmd = { 6030 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6031 .data[0] = &cmd, 6032 .len[0] = sizeof(cmd), 6033 .data[1] = data, 6034 .len[1] = size, 6035 .flags = sync ? 0 : CMD_ASYNC, 6036 }; 6037 int ret; 6038 6039 /* size must be a multiple of DWORD */ 6040 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6041 return; 6042 6043 if (!iwl_mvm_has_new_rx_api(mvm)) 6044 return; 6045 6046 if (sync) { 6047 cmd.notif.cookie = mvm->queue_sync_cookie; 6048 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6049 } 6050 6051 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6052 if (ret) { 6053 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6054 goto out; 6055 } 6056 6057 if (sync) { 6058 lockdep_assert_held(&mvm->mutex); 6059 ret = wait_event_timeout(mvm->rx_sync_waitq, 6060 READ_ONCE(mvm->queue_sync_state) == 0 || 6061 iwl_mvm_is_radio_killed(mvm), 6062 HZ); 6063 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6064 "queue sync: failed to sync, state is 0x%lx\n", 6065 mvm->queue_sync_state); 6066 } 6067 6068 out: 6069 if (sync) { 6070 mvm->queue_sync_state = 0; 6071 mvm->queue_sync_cookie++; 6072 } 6073 } 6074 6075 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6076 { 6077 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6078 6079 mutex_lock(&mvm->mutex); 6080 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6081 mutex_unlock(&mvm->mutex); 6082 } 6083 6084 int 6085 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6086 struct ieee80211_vif *vif, 6087 struct cfg80211_ftm_responder_stats *stats) 6088 { 6089 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6090 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6091 6092 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6093 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6094 return -EINVAL; 6095 6096 mutex_lock(&mvm->mutex); 6097 *stats = mvm->ftm_resp_stats; 6098 mutex_unlock(&mvm->mutex); 6099 6100 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6101 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6102 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6103 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6104 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6105 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6106 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6107 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6108 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6109 6110 return 0; 6111 } 6112 6113 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6114 struct cfg80211_pmsr_request *request) 6115 { 6116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6117 int ret; 6118 6119 mutex_lock(&mvm->mutex); 6120 ret = iwl_mvm_ftm_start(mvm, vif, request); 6121 mutex_unlock(&mvm->mutex); 6122 6123 return ret; 6124 } 6125 6126 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6127 struct cfg80211_pmsr_request *request) 6128 { 6129 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6130 6131 mutex_lock(&mvm->mutex); 6132 iwl_mvm_ftm_abort(mvm, request); 6133 mutex_unlock(&mvm->mutex); 6134 } 6135 6136 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6137 { 6138 u8 protocol = ip_hdr(skb)->protocol; 6139 6140 if (!IS_ENABLED(CONFIG_INET)) 6141 return false; 6142 6143 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6144 } 6145 6146 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6147 struct sk_buff *head, 6148 struct sk_buff *skb) 6149 { 6150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6151 6152 /* For now don't aggregate IPv6 in AMSDU */ 6153 if (skb->protocol != htons(ETH_P_IP)) 6154 return false; 6155 6156 if (!iwl_mvm_is_csum_supported(mvm)) 6157 return true; 6158 6159 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6160 } 6161 6162 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6163 struct ieee80211_vif *vif, 6164 struct cfg80211_set_hw_timestamp *hwts) 6165 { 6166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6167 u32 protocols = 0; 6168 int ret; 6169 6170 /* HW timestamping is only supported for a specific station */ 6171 if (!hwts->macaddr) 6172 return -EOPNOTSUPP; 6173 6174 if (hwts->enable) 6175 protocols = 6176 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6177 6178 mutex_lock(&mvm->mutex); 6179 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6180 mutex_unlock(&mvm->mutex); 6181 6182 return ret; 6183 } 6184 6185 const struct ieee80211_ops iwl_mvm_hw_ops = { 6186 .tx = iwl_mvm_mac_tx, 6187 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6188 .ampdu_action = iwl_mvm_mac_ampdu_action, 6189 .get_antenna = iwl_mvm_op_get_antenna, 6190 .start = iwl_mvm_mac_start, 6191 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6192 .stop = iwl_mvm_mac_stop, 6193 .add_interface = iwl_mvm_mac_add_interface, 6194 .remove_interface = iwl_mvm_mac_remove_interface, 6195 .config = iwl_mvm_mac_config, 6196 .prepare_multicast = iwl_mvm_prepare_multicast, 6197 .configure_filter = iwl_mvm_configure_filter, 6198 .config_iface_filter = iwl_mvm_config_iface_filter, 6199 .bss_info_changed = iwl_mvm_bss_info_changed, 6200 .hw_scan = iwl_mvm_mac_hw_scan, 6201 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6202 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6203 .sta_state = iwl_mvm_mac_sta_state, 6204 .sta_notify = iwl_mvm_mac_sta_notify, 6205 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6206 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6207 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6208 .sta_rc_update = iwl_mvm_sta_rc_update, 6209 .conf_tx = iwl_mvm_mac_conf_tx, 6210 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6211 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6212 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6213 .flush = iwl_mvm_mac_flush, 6214 .flush_sta = iwl_mvm_mac_flush_sta, 6215 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6216 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6217 .set_key = iwl_mvm_mac_set_key, 6218 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6219 .remain_on_channel = iwl_mvm_roc, 6220 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6221 .add_chanctx = iwl_mvm_add_chanctx, 6222 .remove_chanctx = iwl_mvm_remove_chanctx, 6223 .change_chanctx = iwl_mvm_change_chanctx, 6224 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6225 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6226 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6227 6228 .start_ap = iwl_mvm_start_ap, 6229 .stop_ap = iwl_mvm_stop_ap, 6230 .join_ibss = iwl_mvm_start_ibss, 6231 .leave_ibss = iwl_mvm_stop_ibss, 6232 6233 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6234 6235 .set_tim = iwl_mvm_set_tim, 6236 6237 .channel_switch = iwl_mvm_channel_switch, 6238 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6239 .post_channel_switch = iwl_mvm_post_channel_switch, 6240 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6241 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6242 6243 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6244 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6245 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6246 6247 .event_callback = iwl_mvm_mac_event_callback, 6248 6249 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6250 6251 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6252 6253 #ifdef CONFIG_PM_SLEEP 6254 /* look at d3.c */ 6255 .suspend = iwl_mvm_suspend, 6256 .resume = iwl_mvm_resume, 6257 .set_wakeup = iwl_mvm_set_wakeup, 6258 .set_rekey_data = iwl_mvm_set_rekey_data, 6259 #if IS_ENABLED(CONFIG_IPV6) 6260 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6261 #endif 6262 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6263 #endif 6264 .get_survey = iwl_mvm_mac_get_survey, 6265 .sta_statistics = iwl_mvm_mac_sta_statistics, 6266 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6267 .start_pmsr = iwl_mvm_start_pmsr, 6268 .abort_pmsr = iwl_mvm_abort_pmsr, 6269 6270 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6271 #ifdef CONFIG_IWLWIFI_DEBUGFS 6272 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6273 #endif 6274 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6275 }; 6276