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 #if defined(__FreeBSD__) 16 #include <linux/math64.h> 17 #endif 18 #include <net/mac80211.h> 19 #include <net/ieee80211_radiotap.h> 20 #include <net/tcp.h> 21 #if defined(__FreeBSD__) 22 #include <linux/udp.h> 23 #endif 24 25 #include "iwl-drv.h" 26 #include "iwl-op-mode.h" 27 #include "iwl-io.h" 28 #include "mvm.h" 29 #include "sta.h" 30 #include "time-event.h" 31 #include "iwl-eeprom-parse.h" 32 #include "iwl-phy-db.h" 33 #ifdef CONFIG_NL80211_TESTMODE 34 #include "testmode.h" 35 #endif 36 #include "fw/error-dump.h" 37 #include "iwl-prph.h" 38 #include "iwl-nvm-parse.h" 39 #include "time-sync.h" 40 41 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 42 { 43 .max = 1, 44 .types = BIT(NL80211_IFTYPE_STATION), 45 }, 46 { 47 .max = 1, 48 .types = BIT(NL80211_IFTYPE_AP) | 49 BIT(NL80211_IFTYPE_P2P_CLIENT) | 50 BIT(NL80211_IFTYPE_P2P_GO), 51 }, 52 { 53 .max = 1, 54 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 55 }, 56 }; 57 58 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 59 { 60 .num_different_channels = 2, 61 .max_interfaces = 3, 62 .limits = iwl_mvm_limits, 63 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 64 }, 65 }; 66 67 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 68 .max_peers = IWL_MVM_TOF_MAX_APS, 69 .report_ap_tsf = 1, 70 .randomize_mac_addr = 1, 71 72 .ftm = { 73 .supported = 1, 74 .asap = 1, 75 .non_asap = 1, 76 .request_lci = 1, 77 .request_civicloc = 1, 78 .trigger_based = 1, 79 .non_trigger_based = 1, 80 .max_bursts_exponent = -1, /* all supported */ 81 .max_ftms_per_burst = 0, /* no limits */ 82 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 83 BIT(NL80211_CHAN_WIDTH_20) | 84 BIT(NL80211_CHAN_WIDTH_40) | 85 BIT(NL80211_CHAN_WIDTH_80) | 86 BIT(NL80211_CHAN_WIDTH_160), 87 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 88 BIT(NL80211_PREAMBLE_HT) | 89 BIT(NL80211_PREAMBLE_VHT) | 90 BIT(NL80211_PREAMBLE_HE), 91 }, 92 }; 93 94 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 95 enum set_key_cmd cmd, 96 struct ieee80211_vif *vif, 97 struct ieee80211_sta *sta, 98 struct ieee80211_key_conf *key); 99 100 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 101 { 102 int i; 103 104 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 105 for (i = 0; i < NUM_PHY_CTX; i++) { 106 mvm->phy_ctxts[i].id = i; 107 mvm->phy_ctxts[i].ref = 0; 108 } 109 } 110 111 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 112 const char *alpha2, 113 enum iwl_mcc_source src_id, 114 bool *changed) 115 { 116 struct ieee80211_regdomain *regd = NULL; 117 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 119 struct iwl_mcc_update_resp_v8 *resp; 120 u8 resp_ver; 121 122 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 123 124 lockdep_assert_held(&mvm->mutex); 125 126 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 127 if (IS_ERR_OR_NULL(resp)) { 128 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 129 PTR_ERR_OR_ZERO(resp)); 130 resp = NULL; 131 goto out; 132 } 133 134 if (changed) { 135 u32 status = le32_to_cpu(resp->status); 136 137 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 138 status == MCC_RESP_ILLEGAL); 139 } 140 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 141 MCC_UPDATE_CMD, 0); 142 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 143 144 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 145 __le32_to_cpu(resp->n_channels), 146 resp->channels, 147 __le16_to_cpu(resp->mcc), 148 __le16_to_cpu(resp->geo_info), 149 le32_to_cpu(resp->cap), resp_ver); 150 /* Store the return source id */ 151 src_id = resp->source_id; 152 if (IS_ERR_OR_NULL(regd)) { 153 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 154 PTR_ERR_OR_ZERO(regd)); 155 goto out; 156 } 157 158 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 159 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 160 mvm->lar_regdom_set = true; 161 mvm->mcc_src = src_id; 162 163 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 164 165 out: 166 kfree(resp); 167 return regd; 168 } 169 170 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 171 { 172 bool changed; 173 struct ieee80211_regdomain *regd; 174 175 if (!iwl_mvm_is_lar_supported(mvm)) 176 return; 177 178 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 179 if (!IS_ERR_OR_NULL(regd)) { 180 /* only update the regulatory core if changed */ 181 if (changed) 182 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 183 184 kfree(regd); 185 } 186 } 187 188 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 189 bool *changed) 190 { 191 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 192 iwl_mvm_is_wifi_mcc_supported(mvm) ? 193 MCC_SOURCE_GET_CURRENT : 194 MCC_SOURCE_OLD_FW, changed); 195 } 196 197 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 198 { 199 enum iwl_mcc_source used_src; 200 struct ieee80211_regdomain *regd; 201 int ret; 202 bool changed; 203 const struct ieee80211_regdomain *r = 204 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 205 206 if (!r) 207 return -ENOENT; 208 209 /* save the last source in case we overwrite it below */ 210 used_src = mvm->mcc_src; 211 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 212 /* Notify the firmware we support wifi location updates */ 213 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 214 if (!IS_ERR_OR_NULL(regd)) 215 kfree(regd); 216 } 217 218 /* Now set our last stored MCC and source */ 219 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 220 &changed); 221 if (IS_ERR_OR_NULL(regd)) 222 return -EIO; 223 224 /* update cfg80211 if the regdomain was changed */ 225 if (changed) 226 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 227 else 228 ret = 0; 229 230 kfree(regd); 231 return ret; 232 } 233 234 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 235 static const u8 he_if_types_ext_capa_sta[] = { 236 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 237 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 238 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 239 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 240 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 241 }; 242 243 static const u8 tm_if_types_ext_capa_sta[] = { 244 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 245 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 246 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 247 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 248 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 249 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 250 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 251 }; 252 253 /* Additional interface types for which extended capabilities are 254 * specified separately 255 */ 256 257 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 258 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 259 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 260 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 261 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 262 263 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 264 { 265 .iftype = NL80211_IFTYPE_STATION, 266 .extended_capabilities = he_if_types_ext_capa_sta, 267 .extended_capabilities_mask = he_if_types_ext_capa_sta, 268 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 269 /* relevant only if EHT is supported */ 270 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 271 }, 272 { 273 .iftype = NL80211_IFTYPE_STATION, 274 .extended_capabilities = tm_if_types_ext_capa_sta, 275 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 276 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 277 /* relevant only if EHT is supported */ 278 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 279 }, 280 }; 281 282 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 283 { 284 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 285 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 286 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 287 return 0; 288 } 289 290 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 291 { 292 struct ieee80211_hw *hw = mvm->hw; 293 int num_mac, ret, i; 294 static const u32 mvm_ciphers[] = { 295 WLAN_CIPHER_SUITE_WEP40, 296 WLAN_CIPHER_SUITE_WEP104, 297 WLAN_CIPHER_SUITE_TKIP, 298 WLAN_CIPHER_SUITE_CCMP, 299 }; 300 #ifdef CONFIG_PM_SLEEP 301 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 302 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 303 #endif 304 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 305 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 306 307 /* Tell mac80211 our characteristics */ 308 ieee80211_hw_set(hw, SIGNAL_DBM); 309 ieee80211_hw_set(hw, SPECTRUM_MGMT); 310 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 311 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 312 ieee80211_hw_set(hw, SUPPORTS_PS); 313 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 314 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 315 ieee80211_hw_set(hw, CONNECTION_MONITOR); 316 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 317 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 318 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 319 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 320 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 321 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 322 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 323 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 324 325 /* Set this early since we need to have it for the check below */ 326 if (mvm->mld_api_is_used && 327 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 328 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 329 330 /* With MLD FW API, it tracks timing by itself, 331 * no need for any timing from the host 332 */ 333 if (!mvm->mld_api_is_used) 334 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 335 336 /* We should probably have this, but mac80211 337 * currently doesn't support it for MLO. 338 */ 339 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 340 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 341 342 /* 343 * On older devices, enabling TX A-MSDU occasionally leads to 344 * something getting messed up, the command read from the FIFO 345 * gets out of sync and isn't a TX command, so that we have an 346 * assert EDC. 347 * 348 * It's not clear where the bug is, but since we didn't used to 349 * support A-MSDU until moving the mac80211 iTXQs, just leave it 350 * for older devices. We also don't see this issue on any newer 351 * devices. 352 */ 353 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 354 ieee80211_hw_set(hw, TX_AMSDU); 355 ieee80211_hw_set(hw, TX_FRAG_LIST); 356 357 if (iwl_mvm_has_tlc_offload(mvm)) { 358 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 359 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 360 } 361 362 if (iwl_mvm_has_new_rx_api(mvm)) 363 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 364 365 if (fw_has_capa(&mvm->fw->ucode_capa, 366 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 367 ieee80211_hw_set(hw, AP_LINK_PS); 368 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 369 /* 370 * we absolutely need this for the new TX API since that comes 371 * with many more queues than the current code can deal with 372 * for station powersave 373 */ 374 return -EINVAL; 375 } 376 377 if (mvm->trans->num_rx_queues > 1) 378 ieee80211_hw_set(hw, USES_RSS); 379 380 if (mvm->trans->max_skb_frags) 381 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 382 383 hw->queues = IEEE80211_NUM_ACS; 384 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 385 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 386 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 387 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 388 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 389 390 hw->radiotap_timestamp.units_pos = 391 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 392 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 393 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 394 hw->radiotap_timestamp.accuracy = 22; 395 396 if (!iwl_mvm_has_tlc_offload(mvm)) 397 hw->rate_control_algorithm = RS_NAME; 398 399 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 400 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 401 hw->max_tx_fragments = mvm->trans->max_skb_frags; 402 403 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 404 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 405 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 406 hw->wiphy->cipher_suites = mvm->ciphers; 407 408 if (iwl_mvm_has_new_rx_api(mvm)) { 409 mvm->ciphers[hw->wiphy->n_cipher_suites] = 410 WLAN_CIPHER_SUITE_GCMP; 411 hw->wiphy->n_cipher_suites++; 412 mvm->ciphers[hw->wiphy->n_cipher_suites] = 413 WLAN_CIPHER_SUITE_GCMP_256; 414 hw->wiphy->n_cipher_suites++; 415 } 416 417 if (iwlwifi_mod_params.swcrypto) 418 IWL_ERR(mvm, 419 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 420 if (!iwlwifi_mod_params.bt_coex_active) 421 IWL_ERR(mvm, 422 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 423 424 ieee80211_hw_set(hw, MFP_CAPABLE); 425 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 426 hw->wiphy->n_cipher_suites++; 427 if (iwl_mvm_has_new_rx_api(mvm)) { 428 mvm->ciphers[hw->wiphy->n_cipher_suites] = 429 WLAN_CIPHER_SUITE_BIP_GMAC_128; 430 hw->wiphy->n_cipher_suites++; 431 mvm->ciphers[hw->wiphy->n_cipher_suites] = 432 WLAN_CIPHER_SUITE_BIP_GMAC_256; 433 hw->wiphy->n_cipher_suites++; 434 } 435 436 wiphy_ext_feature_set(hw->wiphy, 437 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 438 wiphy_ext_feature_set(hw->wiphy, 439 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 440 441 if (fw_has_capa(&mvm->fw->ucode_capa, 442 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 443 wiphy_ext_feature_set(hw->wiphy, 444 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 445 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 446 } 447 448 if (sec_key_ver && 449 fw_has_capa(&mvm->fw->ucode_capa, 450 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 451 wiphy_ext_feature_set(hw->wiphy, 452 NL80211_EXT_FEATURE_BEACON_PROTECTION); 453 else if (fw_has_capa(&mvm->fw->ucode_capa, 454 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 455 wiphy_ext_feature_set(hw->wiphy, 456 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 457 458 if (fw_has_capa(&mvm->fw->ucode_capa, 459 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 460 hw->wiphy->hw_timestamp_max_peers = 1; 461 462 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 463 hw->wiphy->features |= 464 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 465 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 466 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 467 468 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 469 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 470 hw->chanctx_data_size = sizeof(u16); 471 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 472 473 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 474 BIT(NL80211_IFTYPE_P2P_CLIENT) | 475 BIT(NL80211_IFTYPE_AP) | 476 BIT(NL80211_IFTYPE_P2P_GO) | 477 BIT(NL80211_IFTYPE_P2P_DEVICE) | 478 BIT(NL80211_IFTYPE_ADHOC); 479 480 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 481 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 482 483 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 484 * the hw, preventing us to control which key(id) to use per MPDU. 485 * Till that's fixed we can't use Extended Key ID for the newer cards. 486 */ 487 if (!iwl_mvm_has_new_tx_api(mvm)) 488 wiphy_ext_feature_set(hw->wiphy, 489 NL80211_EXT_FEATURE_EXT_KEY_ID); 490 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 491 492 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 493 if (iwl_mvm_is_lar_supported(mvm)) 494 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 495 else 496 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 497 REGULATORY_DISABLE_BEACON_HINTS; 498 499 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 500 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 501 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 502 503 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 504 hw->wiphy->n_iface_combinations = 505 ARRAY_SIZE(iwl_mvm_iface_combinations); 506 507 hw->wiphy->max_remain_on_channel_duration = 10000; 508 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 509 510 /* Extract MAC address */ 511 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 512 hw->wiphy->addresses = mvm->addresses; 513 hw->wiphy->n_addresses = 1; 514 515 /* Extract additional MAC addresses if available */ 516 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 517 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 518 519 for (i = 1; i < num_mac; i++) { 520 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 521 ETH_ALEN); 522 mvm->addresses[i].addr[5]++; 523 hw->wiphy->n_addresses++; 524 } 525 526 iwl_mvm_reset_phy_ctxts(mvm); 527 528 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 529 530 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 531 532 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 533 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 534 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 535 536 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 537 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 538 else 539 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 540 541 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 542 hw->wiphy->bands[NL80211_BAND_2GHZ] = 543 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 544 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 545 hw->wiphy->bands[NL80211_BAND_5GHZ] = 546 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 547 548 if (fw_has_capa(&mvm->fw->ucode_capa, 549 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 550 fw_has_api(&mvm->fw->ucode_capa, 551 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 552 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 553 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 554 } 555 if (fw_has_capa(&mvm->fw->ucode_capa, 556 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 557 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 558 hw->wiphy->bands[NL80211_BAND_6GHZ] = 559 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 560 561 hw->wiphy->hw_version = mvm->trans->hw_id; 562 563 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 564 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 565 else 566 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 567 568 hw->wiphy->max_sched_scan_reqs = 1; 569 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 570 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 571 /* we create the 802.11 header and zero length SSID IE. */ 572 hw->wiphy->max_sched_scan_ie_len = 573 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 574 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 575 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 576 577 /* 578 * the firmware uses u8 for num of iterations, but 0xff is saved for 579 * infinite loop, so the maximum number of iterations is actually 254. 580 */ 581 hw->wiphy->max_sched_scan_plan_iterations = 254; 582 583 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 584 NL80211_FEATURE_LOW_PRIORITY_SCAN | 585 NL80211_FEATURE_P2P_GO_OPPPS | 586 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 587 NL80211_FEATURE_DYNAMIC_SMPS | 588 NL80211_FEATURE_STATIC_SMPS | 589 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 590 591 if (fw_has_capa(&mvm->fw->ucode_capa, 592 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 593 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 594 if (fw_has_capa(&mvm->fw->ucode_capa, 595 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 596 hw->wiphy->features |= NL80211_FEATURE_QUIET; 597 598 if (fw_has_capa(&mvm->fw->ucode_capa, 599 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 600 hw->wiphy->features |= 601 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 602 603 if (fw_has_capa(&mvm->fw->ucode_capa, 604 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 605 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 606 607 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 608 IWL_FW_CMD_VER_UNKNOWN) == 3) 609 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 610 611 if (fw_has_api(&mvm->fw->ucode_capa, 612 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 613 wiphy_ext_feature_set(hw->wiphy, 614 NL80211_EXT_FEATURE_SCAN_START_TIME); 615 wiphy_ext_feature_set(hw->wiphy, 616 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 617 } 618 619 if (iwl_mvm_is_oce_supported(mvm)) { 620 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 621 622 wiphy_ext_feature_set(hw->wiphy, 623 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 624 wiphy_ext_feature_set(hw->wiphy, 625 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 626 wiphy_ext_feature_set(hw->wiphy, 627 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 628 629 /* Old firmware also supports probe deferral and suppression */ 630 if (scan_ver < 15) 631 wiphy_ext_feature_set(hw->wiphy, 632 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 633 } 634 635 hw->wiphy->iftype_ext_capab = NULL; 636 hw->wiphy->num_iftype_ext_capab = 0; 637 638 if (mvm->nvm_data->sku_cap_11ax_enable && 639 !iwlwifi_mod_params.disable_11ax) { 640 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 641 hw->wiphy->num_iftype_ext_capab = 642 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 643 644 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 645 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 646 } 647 648 if (iwl_fw_lookup_cmd_ver(mvm->fw, 649 WIDE_ID(DATA_PATH_GROUP, 650 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 651 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 652 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 653 654 if (!hw->wiphy->iftype_ext_capab) { 655 hw->wiphy->num_iftype_ext_capab = 1; 656 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 657 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 658 } else { 659 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 660 } 661 } 662 663 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 664 665 #ifdef CONFIG_PM_SLEEP 666 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 667 mvm->trans->ops->d3_suspend && 668 mvm->trans->ops->d3_resume && 669 device_can_wakeup(mvm->trans->dev)) { 670 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 671 WIPHY_WOWLAN_DISCONNECT | 672 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 673 WIPHY_WOWLAN_RFKILL_RELEASE | 674 WIPHY_WOWLAN_NET_DETECT; 675 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 676 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 677 WIPHY_WOWLAN_4WAY_HANDSHAKE; 678 679 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 680 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 681 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 682 mvm->wowlan.max_nd_match_sets = 683 iwl_umac_scan_get_max_profiles(mvm->fw); 684 hw->wiphy->wowlan = &mvm->wowlan; 685 } 686 #endif 687 688 ret = iwl_mvm_leds_init(mvm); 689 if (ret) 690 return ret; 691 692 if (fw_has_capa(&mvm->fw->ucode_capa, 693 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 694 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 695 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 696 ieee80211_hw_set(hw, TDLS_WIDER_BW); 697 } 698 699 if (fw_has_capa(&mvm->fw->ucode_capa, 700 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 701 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 702 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 703 } 704 705 hw->netdev_features |= mvm->cfg->features; 706 if (!iwl_mvm_is_csum_supported(mvm)) 707 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 708 709 if (mvm->cfg->vht_mu_mimo_supported) 710 wiphy_ext_feature_set(hw->wiphy, 711 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 712 713 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 714 wiphy_ext_feature_set(hw->wiphy, 715 NL80211_EXT_FEATURE_PROTECTED_TWT); 716 717 iwl_mvm_vendor_cmds_register(mvm); 718 719 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 720 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 721 722 ret = ieee80211_register_hw(mvm->hw); 723 if (ret) { 724 iwl_mvm_leds_exit(mvm); 725 } 726 727 return ret; 728 } 729 730 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 731 struct ieee80211_sta *sta) 732 { 733 if (likely(sta)) { 734 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 735 return; 736 } else { 737 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 738 return; 739 } 740 741 ieee80211_free_txskb(mvm->hw, skb); 742 } 743 744 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 745 struct ieee80211_tx_control *control, struct sk_buff *skb) 746 { 747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 748 struct ieee80211_sta *sta = control->sta; 749 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 750 struct ieee80211_hdr *hdr = (void *)skb->data; 751 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 752 IEEE80211_TX_CTL_TX_OFFCHAN; 753 u32 link_id = u32_get_bits(info->control.flags, 754 IEEE80211_TX_CTRL_MLO_LINK); 755 struct ieee80211_sta *tmp_sta = sta; 756 757 if (iwl_mvm_is_radio_killed(mvm)) { 758 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 759 goto drop; 760 } 761 762 if (offchannel && 763 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 764 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 765 goto drop; 766 767 /* 768 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 769 * so we treat the others as broadcast 770 */ 771 if (ieee80211_is_mgmt(hdr->frame_control)) 772 sta = NULL; 773 774 /* If there is no sta, and it's not offchannel - send through AP */ 775 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 776 !offchannel) { 777 struct iwl_mvm_vif *mvmvif = 778 iwl_mvm_vif_from_mac80211(info->control.vif); 779 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 780 781 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 782 /* mac80211 holds rcu read lock */ 783 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 784 if (IS_ERR_OR_NULL(sta)) 785 goto drop; 786 } 787 } 788 789 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 790 !ieee80211_is_probe_resp(hdr->frame_control)) { 791 /* translate MLD addresses to LINK addresses */ 792 struct ieee80211_link_sta *link_sta = 793 rcu_dereference(tmp_sta->link[link_id]); 794 struct ieee80211_bss_conf *link_conf = 795 rcu_dereference(info->control.vif->link_conf[link_id]); 796 struct ieee80211_mgmt *mgmt; 797 798 if (WARN_ON(!link_sta || !link_conf)) 799 goto drop; 800 801 /* if sta is NULL, the frame is a management frame */ 802 mgmt = (void *)hdr; 803 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 804 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 805 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 806 } 807 808 iwl_mvm_tx_skb(mvm, skb, sta); 809 return; 810 drop: 811 ieee80211_free_txskb(hw, skb); 812 } 813 814 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 815 { 816 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 817 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 818 struct sk_buff *skb = NULL; 819 820 /* 821 * No need for threads to be pending here, they can leave the first 822 * taker all the work. 823 * 824 * mvmtxq->tx_request logic: 825 * 826 * If 0, no one is currently TXing, set to 1 to indicate current thread 827 * will now start TX and other threads should quit. 828 * 829 * If 1, another thread is currently TXing, set to 2 to indicate to 830 * that thread that there was another request. Since that request may 831 * have raced with the check whether the queue is empty, the TXing 832 * thread should check the queue's status one more time before leaving. 833 * This check is done in order to not leave any TX hanging in the queue 834 * until the next TX invocation (which may not even happen). 835 * 836 * If 2, another thread is currently TXing, and it will already double 837 * check the queue, so do nothing. 838 */ 839 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 840 return; 841 842 rcu_read_lock(); 843 do { 844 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 845 &mvmtxq->state) && 846 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 847 &mvmtxq->state) && 848 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 849 skb = ieee80211_tx_dequeue(hw, txq); 850 851 if (!skb) { 852 if (txq->sta) 853 IWL_DEBUG_TX(mvm, 854 "TXQ of sta %pM tid %d is now empty\n", 855 txq->sta->addr, 856 txq->tid); 857 break; 858 } 859 860 iwl_mvm_tx_skb(mvm, skb, txq->sta); 861 } 862 } while (atomic_dec_return(&mvmtxq->tx_request)); 863 rcu_read_unlock(); 864 } 865 866 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 867 struct ieee80211_txq *txq) 868 { 869 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 870 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 871 872 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 873 !txq->sta) { 874 iwl_mvm_mac_itxq_xmit(hw, txq); 875 return; 876 } 877 878 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 879 * to handle any packets we leave on the txq now 880 */ 881 882 spin_lock_bh(&mvm->add_stream_lock); 883 /* The list is being deleted only after the queue is fully allocated. */ 884 if (list_empty(&mvmtxq->list) && 885 /* recheck under lock */ 886 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 887 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 888 schedule_work(&mvm->add_stream_wk); 889 } 890 spin_unlock_bh(&mvm->add_stream_lock); 891 } 892 893 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 894 do { \ 895 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 896 break; \ 897 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 898 } while (0) 899 900 static void 901 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 902 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 903 enum ieee80211_ampdu_mlme_action action) 904 { 905 struct iwl_fw_dbg_trigger_tlv *trig; 906 struct iwl_fw_dbg_trigger_ba *ba_trig; 907 908 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 909 FW_DBG_TRIGGER_BA); 910 if (!trig) 911 return; 912 913 ba_trig = (void *)trig->data; 914 915 switch (action) { 916 case IEEE80211_AMPDU_TX_OPERATIONAL: { 917 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 918 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 919 920 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 921 "TX AGG START: MAC %pM tid %d ssn %d\n", 922 sta->addr, tid, tid_data->ssn); 923 break; 924 } 925 case IEEE80211_AMPDU_TX_STOP_CONT: 926 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 927 "TX AGG STOP: MAC %pM tid %d\n", 928 sta->addr, tid); 929 break; 930 case IEEE80211_AMPDU_RX_START: 931 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 932 "RX AGG START: MAC %pM tid %d ssn %d\n", 933 sta->addr, tid, rx_ba_ssn); 934 break; 935 case IEEE80211_AMPDU_RX_STOP: 936 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 937 "RX AGG STOP: MAC %pM tid %d\n", 938 sta->addr, tid); 939 break; 940 default: 941 break; 942 } 943 } 944 945 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 946 struct ieee80211_vif *vif, 947 struct ieee80211_ampdu_params *params) 948 { 949 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 950 int ret; 951 struct ieee80211_sta *sta = params->sta; 952 enum ieee80211_ampdu_mlme_action action = params->action; 953 u16 tid = params->tid; 954 u16 *ssn = ¶ms->ssn; 955 u16 buf_size = params->buf_size; 956 bool amsdu = params->amsdu; 957 u16 timeout = params->timeout; 958 959 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 960 sta->addr, tid, action); 961 962 if (!(mvm->nvm_data->sku_cap_11n_enable)) 963 return -EACCES; 964 965 mutex_lock(&mvm->mutex); 966 967 switch (action) { 968 case IEEE80211_AMPDU_RX_START: 969 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 970 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 971 struct iwl_mvm_vif *mvmvif; 972 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 973 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 974 975 mdata->opened_rx_ba_sessions = true; 976 mvmvif = iwl_mvm_vif_from_mac80211(vif); 977 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 978 } 979 if (!iwl_enable_rx_ampdu()) { 980 ret = -EINVAL; 981 break; 982 } 983 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 984 timeout); 985 break; 986 case IEEE80211_AMPDU_RX_STOP: 987 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 988 timeout); 989 break; 990 case IEEE80211_AMPDU_TX_START: 991 if (!iwl_enable_tx_ampdu()) { 992 ret = -EINVAL; 993 break; 994 } 995 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 996 break; 997 case IEEE80211_AMPDU_TX_STOP_CONT: 998 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 999 break; 1000 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1001 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1002 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1003 break; 1004 case IEEE80211_AMPDU_TX_OPERATIONAL: 1005 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1006 buf_size, amsdu); 1007 break; 1008 default: 1009 WARN_ON_ONCE(1); 1010 ret = -EINVAL; 1011 break; 1012 } 1013 1014 if (!ret) { 1015 u16 rx_ba_ssn = 0; 1016 1017 if (action == IEEE80211_AMPDU_RX_START) 1018 rx_ba_ssn = *ssn; 1019 1020 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1021 rx_ba_ssn, action); 1022 } 1023 mutex_unlock(&mvm->mutex); 1024 1025 return ret; 1026 } 1027 1028 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1029 struct ieee80211_vif *vif) 1030 { 1031 struct iwl_mvm *mvm = data; 1032 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1033 struct iwl_probe_resp_data *probe_data; 1034 unsigned int link_id; 1035 1036 mvmvif->uploaded = false; 1037 1038 spin_lock_bh(&mvm->time_event_lock); 1039 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1040 spin_unlock_bh(&mvm->time_event_lock); 1041 1042 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1043 1044 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1045 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1046 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1047 mvmvif->link[link_id]->phy_ctxt = NULL; 1048 mvmvif->link[link_id]->active = 0; 1049 mvmvif->link[link_id]->igtk = NULL; 1050 } 1051 1052 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1053 lockdep_is_held(&mvm->mutex)); 1054 if (probe_data) 1055 kfree_rcu(probe_data, rcu_head); 1056 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1057 } 1058 1059 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1060 { 1061 iwl_mvm_stop_device(mvm); 1062 1063 mvm->cur_aid = 0; 1064 1065 mvm->scan_status = 0; 1066 mvm->ps_disabled = false; 1067 mvm->rfkill_safe_init_done = false; 1068 1069 /* just in case one was running */ 1070 iwl_mvm_cleanup_roc_te(mvm); 1071 ieee80211_remain_on_channel_expired(mvm->hw); 1072 1073 iwl_mvm_ftm_restart(mvm); 1074 1075 /* 1076 * cleanup all interfaces, even inactive ones, as some might have 1077 * gone down during the HW restart 1078 */ 1079 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1080 1081 mvm->p2p_device_vif = NULL; 1082 1083 iwl_mvm_reset_phy_ctxts(mvm); 1084 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1085 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1086 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1087 1088 ieee80211_wake_queues(mvm->hw); 1089 1090 mvm->rx_ba_sessions = 0; 1091 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1092 mvm->monitor_on = false; 1093 #ifdef CONFIG_IWLWIFI_DEBUGFS 1094 mvm->beacon_inject_active = false; 1095 #endif 1096 1097 /* keep statistics ticking */ 1098 iwl_mvm_accu_radio_stats(mvm); 1099 } 1100 1101 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1102 { 1103 int ret; 1104 1105 lockdep_assert_held(&mvm->mutex); 1106 1107 ret = iwl_mvm_mei_get_ownership(mvm); 1108 if (ret) 1109 return ret; 1110 1111 if (mvm->mei_nvm_data) { 1112 /* We got the NIC, we can now free the MEI NVM data */ 1113 kfree(mvm->mei_nvm_data); 1114 mvm->mei_nvm_data = NULL; 1115 1116 /* 1117 * We can't free the nvm_data we allocated based on the SAP 1118 * data because we registered to cfg80211 with the channels 1119 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1120 * just in order to be able free it later. 1121 * NULLify nvm_data so that we will read the NVM from the 1122 * firmware this time. 1123 */ 1124 mvm->temp_nvm_data = mvm->nvm_data; 1125 mvm->nvm_data = NULL; 1126 } 1127 1128 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1129 /* 1130 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1131 * so later code will - from now on - see that we're doing it. 1132 */ 1133 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1134 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1135 /* Clean up some internal and mac80211 state on restart */ 1136 iwl_mvm_restart_cleanup(mvm); 1137 } 1138 ret = iwl_mvm_up(mvm); 1139 1140 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1141 NULL); 1142 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1143 NULL); 1144 1145 mvm->last_reset_or_resume_time_jiffies = jiffies; 1146 1147 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1148 /* Something went wrong - we need to finish some cleanup 1149 * that normally iwl_mvm_mac_restart_complete() below 1150 * would do. 1151 */ 1152 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1153 } 1154 1155 return ret; 1156 } 1157 1158 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1159 { 1160 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1161 int ret; 1162 int retry, max_retry = 0; 1163 1164 mutex_lock(&mvm->mutex); 1165 1166 /* we are starting the mac not in error flow, and restart is enabled */ 1167 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1168 iwlwifi_mod_params.fw_restart) { 1169 max_retry = IWL_MAX_INIT_RETRY; 1170 /* 1171 * This will prevent mac80211 recovery flows to trigger during 1172 * init failures 1173 */ 1174 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1175 } 1176 1177 for (retry = 0; retry <= max_retry; retry++) { 1178 ret = __iwl_mvm_mac_start(mvm); 1179 if (!ret) 1180 break; 1181 1182 /* 1183 * In PLDR sync PCI re-enumeration is needed. no point to retry 1184 * mac start before that. 1185 */ 1186 if (mvm->pldr_sync) { 1187 iwl_mei_alive_notif(false); 1188 iwl_trans_pcie_remove(mvm->trans, true); 1189 break; 1190 } 1191 1192 IWL_ERR(mvm, "mac start retry %d\n", retry); 1193 } 1194 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1195 1196 mutex_unlock(&mvm->mutex); 1197 1198 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1199 1200 return ret; 1201 } 1202 1203 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1204 { 1205 int ret; 1206 1207 mutex_lock(&mvm->mutex); 1208 1209 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1210 1211 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1212 if (ret) 1213 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1214 ret); 1215 1216 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1217 1218 /* 1219 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1220 * of packets the FW sent out, so we must reconnect. 1221 */ 1222 iwl_mvm_teardown_tdls_peers(mvm); 1223 1224 mutex_unlock(&mvm->mutex); 1225 } 1226 1227 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1228 enum ieee80211_reconfig_type reconfig_type) 1229 { 1230 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1231 1232 switch (reconfig_type) { 1233 case IEEE80211_RECONFIG_TYPE_RESTART: 1234 iwl_mvm_restart_complete(mvm); 1235 break; 1236 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1237 break; 1238 } 1239 } 1240 1241 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1242 { 1243 lockdep_assert_held(&mvm->mutex); 1244 1245 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1246 1247 /* firmware counters are obviously reset now, but we shouldn't 1248 * partially track so also clear the fw_reset_accu counters. 1249 */ 1250 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1251 1252 /* async_handlers_wk is now blocked */ 1253 1254 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1255 iwl_mvm_rm_aux_sta(mvm); 1256 1257 iwl_mvm_stop_device(mvm); 1258 1259 iwl_mvm_async_handlers_purge(mvm); 1260 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1261 1262 /* 1263 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1264 * hw (as restart_complete() won't be called in this case) and mac80211 1265 * won't execute the restart. 1266 * But make sure to cleanup interfaces that have gone down before/during 1267 * HW restart was requested. 1268 */ 1269 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1270 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1271 &mvm->status)) 1272 ieee80211_iterate_interfaces(mvm->hw, 0, 1273 iwl_mvm_cleanup_iterator, mvm); 1274 1275 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1276 * make sure there's nothing left there and warn if any is found. 1277 */ 1278 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1279 int i; 1280 1281 for (i = 0; i < mvm->max_scans; i++) { 1282 if (WARN_ONCE(mvm->scan_uid_status[i], 1283 "UMAC scan UID %d status was not cleaned\n", 1284 i)) 1285 mvm->scan_uid_status[i] = 0; 1286 } 1287 } 1288 } 1289 1290 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1291 { 1292 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1293 1294 flush_work(&mvm->async_handlers_wk); 1295 flush_work(&mvm->add_stream_wk); 1296 1297 /* 1298 * Lock and clear the firmware running bit here already, so that 1299 * new commands coming in elsewhere, e.g. from debugfs, will not 1300 * be able to proceed. This is important here because one of those 1301 * debugfs files causes the firmware dump to be triggered, and if we 1302 * don't stop debugfs accesses before canceling that it could be 1303 * retriggered after we flush it but before we've cleared the bit. 1304 */ 1305 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1306 1307 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1308 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1309 1310 /* 1311 * The work item could be running or queued if the 1312 * ROC time event stops just as we get here. 1313 */ 1314 flush_work(&mvm->roc_done_wk); 1315 1316 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1317 1318 mutex_lock(&mvm->mutex); 1319 __iwl_mvm_mac_stop(mvm); 1320 mutex_unlock(&mvm->mutex); 1321 1322 /* 1323 * The worker might have been waiting for the mutex, let it run and 1324 * discover that its list is now empty. 1325 */ 1326 cancel_work_sync(&mvm->async_handlers_wk); 1327 } 1328 1329 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1330 { 1331 u16 i; 1332 1333 lockdep_assert_held(&mvm->mutex); 1334 1335 for (i = 0; i < NUM_PHY_CTX; i++) 1336 if (!mvm->phy_ctxts[i].ref) 1337 return &mvm->phy_ctxts[i]; 1338 1339 IWL_ERR(mvm, "No available PHY context\n"); 1340 return NULL; 1341 } 1342 1343 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1344 s16 tx_power) 1345 { 1346 u32 cmd_id = REDUCE_TX_POWER_CMD; 1347 int len; 1348 struct iwl_dev_tx_power_cmd cmd = { 1349 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1350 .common.mac_context_id = 1351 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1352 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1353 }; 1354 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1355 IWL_FW_CMD_VER_UNKNOWN); 1356 1357 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1358 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1359 1360 if (cmd_ver == 7) 1361 len = sizeof(cmd.v7); 1362 else if (cmd_ver == 6) 1363 len = sizeof(cmd.v6); 1364 else if (fw_has_api(&mvm->fw->ucode_capa, 1365 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1366 len = sizeof(cmd.v5); 1367 else if (fw_has_capa(&mvm->fw->ucode_capa, 1368 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1369 len = sizeof(cmd.v4); 1370 else 1371 len = sizeof(cmd.v3); 1372 1373 /* all structs have the same common part, add it */ 1374 len += sizeof(cmd.common); 1375 1376 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1377 } 1378 1379 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1380 struct ieee80211_vif *vif) 1381 { 1382 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1383 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1384 int ret; 1385 1386 mutex_lock(&mvm->mutex); 1387 1388 if (vif->type == NL80211_IFTYPE_STATION) { 1389 struct iwl_mvm_sta *mvmsta; 1390 1391 mvmvif->csa_bcn_pending = false; 1392 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1393 mvmvif->deflink.ap_sta_id); 1394 1395 if (WARN_ON(!mvmsta)) { 1396 ret = -EIO; 1397 goto out_unlock; 1398 } 1399 1400 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1401 if (mvm->mld_api_is_used) 1402 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1403 else 1404 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1405 1406 if (!fw_has_capa(&mvm->fw->ucode_capa, 1407 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1408 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1409 if (ret) 1410 goto out_unlock; 1411 1412 iwl_mvm_stop_session_protection(mvm, vif); 1413 } 1414 } 1415 1416 mvmvif->ps_disabled = false; 1417 1418 ret = iwl_mvm_power_update_ps(mvm); 1419 1420 out_unlock: 1421 if (mvmvif->csa_failed) 1422 ret = -EIO; 1423 mutex_unlock(&mvm->mutex); 1424 1425 return ret; 1426 } 1427 1428 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1429 struct ieee80211_vif *vif) 1430 { 1431 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1432 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1433 struct iwl_chan_switch_te_cmd cmd = { 1434 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1435 mvmvif->color)), 1436 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1437 }; 1438 1439 /* 1440 * In the new flow since FW is in charge of the timing, 1441 * if driver has canceled the channel switch he will receive the 1442 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1443 */ 1444 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1445 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1446 return; 1447 1448 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1449 1450 mutex_lock(&mvm->mutex); 1451 if (!fw_has_capa(&mvm->fw->ucode_capa, 1452 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1453 iwl_mvm_remove_csa_period(mvm, vif); 1454 else 1455 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1456 WIDE_ID(MAC_CONF_GROUP, 1457 CHANNEL_SWITCH_TIME_EVENT_CMD), 1458 0, sizeof(cmd), &cmd)); 1459 mvmvif->csa_failed = true; 1460 mutex_unlock(&mvm->mutex); 1461 1462 iwl_mvm_post_channel_switch(hw, vif); 1463 } 1464 1465 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1466 { 1467 struct iwl_mvm_vif *mvmvif; 1468 struct ieee80211_vif *vif; 1469 1470 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1471 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1472 1473 /* Trigger disconnect (should clear the CSA state) */ 1474 ieee80211_chswitch_done(vif, false); 1475 } 1476 1477 static u8 1478 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1479 { 1480 int data_start; 1481 int control_start; 1482 int bw; 1483 1484 if (chandef->width == NL80211_CHAN_WIDTH_320) 1485 bw = 320; 1486 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1487 bw = 160; 1488 else 1489 return 0; 1490 1491 /* data is bw wide so the start is half the width */ 1492 data_start = chandef->center_freq1 - bw / 2; 1493 /* control is 20Mhz width */ 1494 control_start = chandef->chan->center_freq - 10; 1495 1496 return (control_start - data_start) / 80; 1497 } 1498 1499 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1500 struct ieee80211_vif *vif) 1501 { 1502 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1503 int ret; 1504 1505 lockdep_assert_held(&mvm->mutex); 1506 1507 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1508 if (ret) { 1509 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1510 return ret; 1511 } 1512 1513 /* Only queue for this station is the mcast queue, 1514 * which shouldn't be in TFD mask anyway 1515 */ 1516 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1517 vif->type, 1518 IWL_STA_MULTICAST); 1519 } 1520 1521 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1522 struct ieee80211_vif *vif) 1523 { 1524 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1525 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1526 int ret; 1527 1528 mutex_lock(&mvm->mutex); 1529 1530 mvmvif->mvm = mvm; 1531 1532 /* the first link always points to the default one */ 1533 mvmvif->link[0] = &mvmvif->deflink; 1534 1535 /* 1536 * Not much to do here. The stack will not allow interface 1537 * types or combinations that we didn't advertise, so we 1538 * don't really have to check the types. 1539 */ 1540 1541 /* make sure that beacon statistics don't go backwards with FW reset */ 1542 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1543 mvmvif->deflink.beacon_stats.accu_num_beacons += 1544 mvmvif->deflink.beacon_stats.num_beacons; 1545 1546 /* Allocate resources for the MAC context, and add it to the fw */ 1547 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1548 if (ret) 1549 goto out; 1550 1551 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1552 1553 /* Currently not much to do for NAN */ 1554 if (vif->type == NL80211_IFTYPE_NAN) { 1555 ret = 0; 1556 goto out; 1557 } 1558 1559 /* 1560 * The AP binding flow can be done only after the beacon 1561 * template is configured (which happens only in the mac80211 1562 * start_ap() flow), and adding the broadcast station can happen 1563 * only after the binding. 1564 * In addition, since modifying the MAC before adding a bcast 1565 * station is not allowed by the FW, delay the adding of MAC context to 1566 * the point where we can also add the bcast station. 1567 * In short: there's not much we can do at this point, other than 1568 * allocating resources :) 1569 */ 1570 if (vif->type == NL80211_IFTYPE_AP || 1571 vif->type == NL80211_IFTYPE_ADHOC) { 1572 iwl_mvm_vif_dbgfs_register(mvm, vif); 1573 ret = 0; 1574 goto out; 1575 } 1576 1577 mvmvif->features |= hw->netdev_features; 1578 1579 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1580 if (ret) 1581 goto out_unlock; 1582 1583 ret = iwl_mvm_power_update_mac(mvm); 1584 if (ret) 1585 goto out_remove_mac; 1586 1587 /* beacon filtering */ 1588 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1589 if (ret) 1590 goto out_remove_mac; 1591 1592 if (!mvm->bf_allowed_vif && 1593 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1594 mvm->bf_allowed_vif = mvmvif; 1595 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1596 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1597 } 1598 1599 /* 1600 * P2P_DEVICE interface does not have a channel context assigned to it, 1601 * so a dedicated PHY context is allocated to it and the corresponding 1602 * MAC context is bound to it at this stage. 1603 */ 1604 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1605 1606 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1607 if (!mvmvif->deflink.phy_ctxt) { 1608 ret = -ENOSPC; 1609 goto out_free_bf; 1610 } 1611 1612 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 1613 ret = iwl_mvm_binding_add_vif(mvm, vif); 1614 if (ret) 1615 goto out_unref_phy; 1616 1617 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1618 if (ret) 1619 goto out_unbind; 1620 1621 /* Save a pointer to p2p device vif, so it can later be used to 1622 * update the p2p device MAC when a GO is started/stopped */ 1623 mvm->p2p_device_vif = vif; 1624 } 1625 1626 iwl_mvm_tcm_add_vif(mvm, vif); 1627 INIT_DELAYED_WORK(&mvmvif->csa_work, 1628 iwl_mvm_channel_switch_disconnect_wk); 1629 1630 if (vif->type == NL80211_IFTYPE_MONITOR) { 1631 mvm->monitor_on = true; 1632 mvm->monitor_p80 = 1633 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef); 1634 } 1635 1636 iwl_mvm_vif_dbgfs_register(mvm, vif); 1637 1638 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1639 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1640 !mvm->csme_vif && mvm->mei_registered) { 1641 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1642 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1643 mvm->csme_vif = vif; 1644 } 1645 1646 out: 1647 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1648 vif->type == NL80211_IFTYPE_ADHOC)) 1649 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1650 1651 goto out_unlock; 1652 1653 out_unbind: 1654 iwl_mvm_binding_remove_vif(mvm, vif); 1655 out_unref_phy: 1656 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1657 out_free_bf: 1658 if (mvm->bf_allowed_vif == mvmvif) { 1659 mvm->bf_allowed_vif = NULL; 1660 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1661 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1662 } 1663 out_remove_mac: 1664 mvmvif->deflink.phy_ctxt = NULL; 1665 iwl_mvm_mac_ctxt_remove(mvm, vif); 1666 out_unlock: 1667 mutex_unlock(&mvm->mutex); 1668 1669 return ret; 1670 } 1671 1672 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1673 struct ieee80211_vif *vif) 1674 { 1675 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1676 /* 1677 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1678 * We assume here that all the packets sent to the OFFCHANNEL 1679 * queue are sent in ROC session. 1680 */ 1681 flush_work(&mvm->roc_done_wk); 1682 } 1683 } 1684 1685 /* This function is doing the common part of removing the interface for 1686 * both - MLD and non-MLD modes. Returns true if removing the interface 1687 * is done 1688 */ 1689 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1690 struct ieee80211_vif *vif) 1691 { 1692 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1693 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1694 struct iwl_probe_resp_data *probe_data; 1695 1696 iwl_mvm_prepare_mac_removal(mvm, vif); 1697 1698 if (!(vif->type == NL80211_IFTYPE_AP || 1699 vif->type == NL80211_IFTYPE_ADHOC)) 1700 iwl_mvm_tcm_rm_vif(mvm, vif); 1701 1702 mutex_lock(&mvm->mutex); 1703 1704 if (vif == mvm->csme_vif) { 1705 iwl_mei_set_netdev(NULL); 1706 mvm->csme_vif = NULL; 1707 } 1708 1709 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1710 lockdep_is_held(&mvm->mutex)); 1711 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1712 if (probe_data) 1713 kfree_rcu(probe_data, rcu_head); 1714 1715 if (mvm->bf_allowed_vif == mvmvif) { 1716 mvm->bf_allowed_vif = NULL; 1717 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1718 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1719 } 1720 1721 if (vif->bss_conf.ftm_responder) 1722 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1723 1724 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1725 1726 /* 1727 * For AP/GO interface, the tear down of the resources allocated to the 1728 * interface is be handled as part of the stop_ap flow. 1729 */ 1730 if (vif->type == NL80211_IFTYPE_AP || 1731 vif->type == NL80211_IFTYPE_ADHOC) { 1732 #ifdef CONFIG_NL80211_TESTMODE 1733 if (vif == mvm->noa_vif) { 1734 mvm->noa_vif = NULL; 1735 mvm->noa_duration = 0; 1736 } 1737 #endif 1738 return true; 1739 } 1740 1741 iwl_mvm_power_update_mac(mvm); 1742 return false; 1743 } 1744 1745 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1746 struct ieee80211_vif *vif) 1747 { 1748 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1749 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1750 1751 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1752 goto out; 1753 1754 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1755 mvm->p2p_device_vif = NULL; 1756 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1757 iwl_mvm_binding_remove_vif(mvm, vif); 1758 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1759 mvmvif->deflink.phy_ctxt = NULL; 1760 } 1761 1762 iwl_mvm_mac_ctxt_remove(mvm, vif); 1763 1764 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1765 1766 if (vif->type == NL80211_IFTYPE_MONITOR) 1767 mvm->monitor_on = false; 1768 1769 out: 1770 if (vif->type == NL80211_IFTYPE_AP || 1771 vif->type == NL80211_IFTYPE_ADHOC) { 1772 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1773 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1774 } 1775 1776 mutex_unlock(&mvm->mutex); 1777 } 1778 1779 struct iwl_mvm_mc_iter_data { 1780 struct iwl_mvm *mvm; 1781 int port_id; 1782 }; 1783 1784 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1785 struct ieee80211_vif *vif) 1786 { 1787 struct iwl_mvm_mc_iter_data *data = _data; 1788 struct iwl_mvm *mvm = data->mvm; 1789 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1790 struct iwl_host_cmd hcmd = { 1791 .id = MCAST_FILTER_CMD, 1792 .flags = CMD_ASYNC, 1793 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1794 }; 1795 int ret, len; 1796 1797 /* if we don't have free ports, mcast frames will be dropped */ 1798 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1799 return; 1800 1801 if (vif->type != NL80211_IFTYPE_STATION || 1802 !vif->cfg.assoc) 1803 return; 1804 1805 cmd->port_id = data->port_id++; 1806 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1807 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1808 1809 hcmd.len[0] = len; 1810 hcmd.data[0] = cmd; 1811 1812 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1813 if (ret) 1814 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1815 } 1816 1817 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1818 { 1819 struct iwl_mvm_mc_iter_data iter_data = { 1820 .mvm = mvm, 1821 }; 1822 int ret; 1823 1824 lockdep_assert_held(&mvm->mutex); 1825 1826 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1827 return; 1828 1829 ieee80211_iterate_active_interfaces_atomic( 1830 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1831 iwl_mvm_mc_iface_iterator, &iter_data); 1832 1833 /* 1834 * Send a (synchronous) ech command so that we wait for the 1835 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1836 * the interface iterator. Otherwise, we might get here over 1837 * and over again (by userspace just sending a lot of these) 1838 * and the CPU can send them faster than the firmware can 1839 * process them. 1840 * Note that the CPU is still faster - but with this we'll 1841 * actually send fewer commands overall because the CPU will 1842 * not schedule the work in mac80211 as frequently if it's 1843 * still running when rescheduled (possibly multiple times). 1844 */ 1845 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1846 if (ret) 1847 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1848 } 1849 1850 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1851 struct netdev_hw_addr_list *mc_list) 1852 { 1853 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1854 struct iwl_mcast_filter_cmd *cmd; 1855 struct netdev_hw_addr *addr; 1856 int addr_count; 1857 bool pass_all; 1858 int len; 1859 1860 addr_count = netdev_hw_addr_list_count(mc_list); 1861 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1862 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1863 if (pass_all) 1864 addr_count = 0; 1865 1866 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1867 cmd = kzalloc(len, GFP_ATOMIC); 1868 if (!cmd) 1869 return 0; 1870 1871 if (pass_all) { 1872 cmd->pass_all = 1; 1873 #if defined(__linux__) 1874 return (u64)(unsigned long)cmd; 1875 #elif defined(__FreeBSD__) 1876 return (u64)(uintptr_t)cmd; 1877 #endif 1878 } 1879 1880 netdev_hw_addr_list_for_each(addr, mc_list) { 1881 #if defined(__linux__) 1882 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1883 cmd->count, addr->addr); 1884 #elif defined(__FreeBSD__) 1885 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %6D\n", 1886 cmd->count, addr->addr, ":"); 1887 #endif 1888 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1889 addr->addr, ETH_ALEN); 1890 cmd->count++; 1891 } 1892 1893 #if defined(__linux__) 1894 return (u64)(unsigned long)cmd; 1895 #elif defined(__FreeBSD__) 1896 return (u64)(uintptr_t)cmd; 1897 #endif 1898 } 1899 1900 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1901 unsigned int changed_flags, 1902 unsigned int *total_flags, u64 multicast) 1903 { 1904 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1905 #if defined(__linux__) 1906 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1907 #elif defined(__FreeBSD__) 1908 struct iwl_mcast_filter_cmd *cmd = (void *)(uintptr_t)multicast; 1909 #endif 1910 1911 mutex_lock(&mvm->mutex); 1912 1913 /* replace previous configuration */ 1914 kfree(mvm->mcast_filter_cmd); 1915 mvm->mcast_filter_cmd = cmd; 1916 1917 if (!cmd) 1918 goto out; 1919 1920 if (changed_flags & FIF_ALLMULTI) 1921 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1922 1923 if (cmd->pass_all) 1924 cmd->count = 0; 1925 1926 iwl_mvm_recalc_multicast(mvm); 1927 out: 1928 mutex_unlock(&mvm->mutex); 1929 *total_flags = 0; 1930 } 1931 1932 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1933 struct ieee80211_vif *vif, 1934 unsigned int filter_flags, 1935 unsigned int changed_flags) 1936 { 1937 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1938 1939 /* We support only filter for probe requests */ 1940 if (!(changed_flags & FIF_PROBE_REQ)) 1941 return; 1942 1943 /* Supported only for p2p client interfaces */ 1944 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1945 !vif->p2p) 1946 return; 1947 1948 mutex_lock(&mvm->mutex); 1949 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1950 mutex_unlock(&mvm->mutex); 1951 } 1952 1953 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1954 { 1955 struct iwl_mu_group_mgmt_cmd cmd = {}; 1956 1957 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1958 WLAN_MEMBERSHIP_LEN); 1959 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1960 WLAN_USER_POSITION_LEN); 1961 1962 return iwl_mvm_send_cmd_pdu(mvm, 1963 WIDE_ID(DATA_PATH_GROUP, 1964 UPDATE_MU_GROUPS_CMD), 1965 0, sizeof(cmd), &cmd); 1966 } 1967 1968 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1969 struct ieee80211_vif *vif) 1970 { 1971 if (vif->bss_conf.mu_mimo_owner) { 1972 struct iwl_mu_group_mgmt_notif *notif = _data; 1973 1974 /* 1975 * MU-MIMO Group Id action frame is little endian. We treat 1976 * the data received from firmware as if it came from the 1977 * action frame, so no conversion is needed. 1978 */ 1979 ieee80211_update_mu_groups(vif, 0, 1980 (u8 *)¬if->membership_status, 1981 (u8 *)¬if->user_position); 1982 } 1983 } 1984 1985 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1986 struct iwl_rx_cmd_buffer *rxb) 1987 { 1988 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1989 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1990 1991 ieee80211_iterate_active_interfaces_atomic( 1992 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1993 iwl_mvm_mu_mimo_iface_iterator, notif); 1994 } 1995 1996 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1997 { 1998 u8 byte_num = ppe_pos_bit / 8; 1999 u8 bit_num = ppe_pos_bit % 8; 2000 u8 residue_bits; 2001 u8 res; 2002 2003 if (bit_num <= 5) 2004 return (ppe[byte_num] >> bit_num) & 2005 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2006 2007 /* 2008 * If bit_num > 5, we have to combine bits with next byte. 2009 * Calculate how many bits we need to take from current byte (called 2010 * here "residue_bits"), and add them to bits from next byte. 2011 */ 2012 2013 residue_bits = 8 - bit_num; 2014 2015 res = (ppe[byte_num + 1] & 2016 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2017 residue_bits; 2018 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2019 2020 return res; 2021 } 2022 2023 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2024 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2025 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2026 bool inheritance) 2027 { 2028 int i; 2029 2030 /* 2031 * FW currently supports only nss == MAX_HE_SUPP_NSS 2032 * 2033 * If nss > MAX: we can ignore values we don't support 2034 * If nss < MAX: we can set zeros in other streams 2035 */ 2036 if (nss > MAX_HE_SUPP_NSS) { 2037 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2038 MAX_HE_SUPP_NSS); 2039 nss = MAX_HE_SUPP_NSS; 2040 } 2041 2042 for (i = 0; i < nss; i++) { 2043 u8 ru_index_tmp = ru_index_bitmap << 1; 2044 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2045 u8 bw; 2046 2047 for (bw = 0; 2048 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2049 bw++) { 2050 ru_index_tmp >>= 1; 2051 2052 /* 2053 * According to the 11be spec, if for a specific BW the PPE Thresholds 2054 * isn't present - it should inherit the thresholds from the last 2055 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2056 * this inheritance - continue in this case 2057 */ 2058 if (!(ru_index_tmp & 1)) { 2059 if (inheritance) 2060 goto set_thresholds; 2061 else 2062 continue; 2063 } 2064 2065 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2066 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2067 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2068 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2069 2070 set_thresholds: 2071 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2072 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2073 } 2074 } 2075 } 2076 2077 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2078 struct ieee80211_link_sta *link_sta, 2079 struct iwl_he_pkt_ext_v2 *pkt_ext, 2080 bool inheritance) 2081 { 2082 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2083 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2084 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2085 u8 ru_index_bitmap = 2086 u8_get_bits(*ppe, 2087 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2088 /* Starting after PPE header */ 2089 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2090 2091 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2092 inheritance); 2093 } 2094 2095 static int 2096 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2097 u8 nominal_padding) 2098 { 2099 int low_th = -1; 2100 int high_th = -1; 2101 int i; 2102 2103 /* all the macros are the same for EHT and HE */ 2104 switch (nominal_padding) { 2105 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2106 low_th = IWL_HE_PKT_EXT_NONE; 2107 high_th = IWL_HE_PKT_EXT_NONE; 2108 break; 2109 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2110 low_th = IWL_HE_PKT_EXT_BPSK; 2111 high_th = IWL_HE_PKT_EXT_NONE; 2112 break; 2113 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2114 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2115 low_th = IWL_HE_PKT_EXT_NONE; 2116 high_th = IWL_HE_PKT_EXT_BPSK; 2117 break; 2118 } 2119 2120 if (low_th < 0 || high_th < 0) 2121 return -EINVAL; 2122 2123 /* Set the PPE thresholds accordingly */ 2124 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2125 u8 bw; 2126 2127 for (bw = 0; 2128 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2129 bw++) { 2130 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2131 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2132 } 2133 } 2134 2135 return 0; 2136 } 2137 2138 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2139 u8 nominal_padding) 2140 { 2141 int i; 2142 2143 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2144 u8 bw; 2145 2146 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2147 bw++) { 2148 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2149 2150 if (nominal_padding > 2151 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2152 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2153 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2154 else if (nominal_padding == 2155 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2156 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2157 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2158 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2159 } 2160 } 2161 } 2162 2163 /* Set the pkt_ext field according to PPE Thresholds element */ 2164 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2165 struct ieee80211_link_sta *link_sta, 2166 struct iwl_he_pkt_ext_v2 *pkt_ext) 2167 { 2168 u8 nominal_padding; 2169 int i, ret = 0; 2170 2171 if (WARN_ON(!link_sta)) 2172 return -EINVAL; 2173 2174 /* Initialize the PPE thresholds to "None" (7), as described in Table 2175 * 9-262ac of 80211.ax/D3.0. 2176 */ 2177 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2178 sizeof(struct iwl_he_pkt_ext_v2)); 2179 2180 if (link_sta->eht_cap.has_eht) { 2181 nominal_padding = 2182 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2183 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2184 2185 /* If PPE Thresholds exists, parse them into a FW-familiar 2186 * format. 2187 */ 2188 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2189 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2190 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2191 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2192 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2193 u8 ru_index_bitmap = 2194 u16_get_bits(*ppe, 2195 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2196 /* Starting after PPE header */ 2197 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2198 2199 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2200 ppe, ppe_pos_bit, true); 2201 /* EHT PPE Thresholds doesn't exist - set the API according to 2202 * HE PPE Tresholds 2203 */ 2204 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2205 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2206 /* Even though HE Capabilities IE doesn't contain PPE 2207 * Thresholds for BW 320Mhz, thresholds for this BW will 2208 * be filled in with the same values as 160Mhz, due to 2209 * the inheritance, as required. 2210 */ 2211 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2212 true); 2213 2214 /* According to the requirements, for MCSs 12-13 the 2215 * maximum value between HE PPE Threshold and Common 2216 * Nominal Packet Padding needs to be taken 2217 */ 2218 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2219 2220 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2221 * take the Thresholds from Common Nominal Packet Padding field 2222 */ 2223 } else { 2224 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2225 nominal_padding); 2226 } 2227 } else if (link_sta->he_cap.has_he) { 2228 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2229 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2230 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2231 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2232 false); 2233 /* PPE Thresholds doesn't exist - set the API PPE values 2234 * according to Common Nominal Packet Padding field. 2235 */ 2236 } else { 2237 nominal_padding = 2238 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2239 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2240 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2241 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2242 nominal_padding); 2243 } 2244 } 2245 2246 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2247 int bw; 2248 2249 for (bw = 0; 2250 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2251 bw++) { 2252 u8 *qam_th = 2253 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2254 2255 IWL_DEBUG_HT(mvm, 2256 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2257 i, bw, qam_th[0], qam_th[1]); 2258 } 2259 } 2260 return ret; 2261 } 2262 2263 /* 2264 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2265 * is enabled or not 2266 */ 2267 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2268 const struct iwl_mvm_vif_link_info *link_info, 2269 struct iwl_he_backoff_conf *trig_based_txf) 2270 { 2271 int i; 2272 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2273 bool mu_edca_enabled = true; 2274 2275 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2276 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2277 &link_info->queue_params[i].mu_edca_param_rec; 2278 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2279 2280 if (!link_info->queue_params[i].mu_edca) { 2281 mu_edca_enabled = false; 2282 break; 2283 } 2284 2285 trig_based_txf[ac].cwmin = 2286 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2287 trig_based_txf[ac].cwmax = 2288 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2289 trig_based_txf[ac].aifsn = 2290 cpu_to_le16(mu_edca->aifsn & 0xf); 2291 trig_based_txf[ac].mu_time = 2292 cpu_to_le16(mu_edca->mu_edca_timer); 2293 } 2294 2295 return mu_edca_enabled; 2296 } 2297 2298 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2299 { 2300 const struct ieee80211_supported_band *sband; 2301 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2302 2303 /* This capability is the same for all bands, 2304 * so take it from one of them. 2305 */ 2306 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2307 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2308 2309 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2310 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2311 } 2312 2313 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2314 struct ieee80211_link_sta *link_sta) 2315 { 2316 u8 *mac_cap_info = 2317 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2318 __le32 htc_flags = 0; 2319 2320 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2321 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2322 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2323 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2324 u8 link_adap = 2325 ((mac_cap_info[2] & 2326 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2327 (mac_cap_info[1] & 2328 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2329 2330 if (link_adap == 2) 2331 htc_flags |= 2332 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2333 else if (link_adap == 3) 2334 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2335 } 2336 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2337 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2338 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2339 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2340 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2341 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2342 2343 return htc_flags; 2344 } 2345 2346 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2347 struct ieee80211_vif *vif, u8 sta_id) 2348 { 2349 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2350 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2351 .sta_id = sta_id, 2352 .tid_limit = IWL_MAX_TID_COUNT, 2353 .bss_color = vif->bss_conf.he_bss_color.color, 2354 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2355 .frame_time_rts_th = 2356 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2357 }; 2358 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2359 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2360 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2361 int size; 2362 struct ieee80211_sta *sta; 2363 u32 flags; 2364 int i; 2365 void *cmd; 2366 2367 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2368 ver = 1; 2369 2370 switch (ver) { 2371 case 1: 2372 /* same layout as v2 except some data at the end */ 2373 cmd = &sta_ctxt_cmd_v2; 2374 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2375 break; 2376 case 2: 2377 cmd = &sta_ctxt_cmd_v2; 2378 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2379 break; 2380 case 3: 2381 cmd = &sta_ctxt_cmd; 2382 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2383 break; 2384 default: 2385 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2386 return; 2387 } 2388 2389 rcu_read_lock(); 2390 2391 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2392 if (IS_ERR_OR_NULL(sta)) { 2393 rcu_read_unlock(); 2394 WARN(1, "Can't find STA to configure HE\n"); 2395 return; 2396 } 2397 2398 if (!sta->deflink.he_cap.has_he) { 2399 rcu_read_unlock(); 2400 return; 2401 } 2402 2403 flags = 0; 2404 2405 /* Block 26-tone RU OFDMA transmissions */ 2406 if (mvmvif->deflink.he_ru_2mhz_block) 2407 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2408 2409 /* HTC flags */ 2410 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2411 2412 /* PPE Thresholds */ 2413 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2414 flags |= STA_CTXT_HE_PACKET_EXT; 2415 2416 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2417 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2418 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2419 2420 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2421 IEEE80211_HE_MAC_CAP2_ACK_EN) 2422 flags |= STA_CTXT_HE_ACK_ENABLED; 2423 2424 rcu_read_unlock(); 2425 2426 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2427 &sta_ctxt_cmd.trig_based_txf[0])) 2428 flags |= STA_CTXT_HE_MU_EDCA_CW; 2429 2430 if (vif->bss_conf.uora_exists) { 2431 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2432 2433 sta_ctxt_cmd.rand_alloc_ecwmin = 2434 vif->bss_conf.uora_ocw_range & 0x7; 2435 sta_ctxt_cmd.rand_alloc_ecwmax = 2436 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2437 } 2438 2439 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2440 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2441 2442 if (vif->bss_conf.nontransmitted) { 2443 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2444 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2445 vif->bss_conf.transmitter_bssid); 2446 sta_ctxt_cmd.max_bssid_indicator = 2447 vif->bss_conf.bssid_indicator; 2448 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2449 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2450 sta_ctxt_cmd.profile_periodicity = 2451 vif->bss_conf.profile_periodicity; 2452 } 2453 2454 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2455 2456 if (ver < 3) { 2457 /* fields before pkt_ext */ 2458 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2459 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2460 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2461 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2462 2463 /* pkt_ext */ 2464 for (i = 0; 2465 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2466 i++) { 2467 u8 bw; 2468 2469 for (bw = 0; 2470 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2471 bw++) { 2472 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2473 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2474 2475 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2476 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2477 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2478 } 2479 } 2480 2481 /* fields after pkt_ext */ 2482 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2483 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2484 sizeof(sta_ctxt_cmd_v2) - 2485 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2486 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2487 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2488 (u8 *)&sta_ctxt_cmd + 2489 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2490 sizeof(sta_ctxt_cmd) - 2491 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2492 sta_ctxt_cmd_v2.reserved3 = 0; 2493 } 2494 2495 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2496 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2497 } 2498 2499 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2500 u32 duration_override) 2501 { 2502 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2503 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2504 2505 if (duration_override > duration) 2506 duration = duration_override; 2507 2508 /* Try really hard to protect the session and hear a beacon 2509 * The new session protection command allows us to protect the 2510 * session for a much longer time since the firmware will internally 2511 * create two events: a 300TU one with a very high priority that 2512 * won't be fragmented which should be enough for 99% of the cases, 2513 * and another one (which we configure here to be 900TU long) which 2514 * will have a slightly lower priority, but more importantly, can be 2515 * fragmented so that it'll allow other activities to run. 2516 */ 2517 if (fw_has_capa(&mvm->fw->ucode_capa, 2518 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2519 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2520 min_duration, false); 2521 else 2522 iwl_mvm_protect_session(mvm, vif, duration, 2523 min_duration, 500, false); 2524 } 2525 2526 /* Handle association common part to MLD and non-MLD modes */ 2527 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2528 struct ieee80211_vif *vif, 2529 u64 changes) 2530 { 2531 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2532 int ret; 2533 2534 /* The firmware tracks the MU-MIMO group on its own. 2535 * However, on HW restart we should restore this data. 2536 */ 2537 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2538 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2539 ret = iwl_mvm_update_mu_groups(mvm, vif); 2540 if (ret) 2541 IWL_ERR(mvm, 2542 "failed to update VHT MU_MIMO groups\n"); 2543 } 2544 2545 iwl_mvm_recalc_multicast(mvm); 2546 2547 /* reset rssi values */ 2548 mvmvif->bf_data.ave_beacon_signal = 0; 2549 2550 iwl_mvm_bt_coex_vif_change(mvm); 2551 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2552 IEEE80211_SMPS_AUTOMATIC); 2553 if (fw_has_capa(&mvm->fw->ucode_capa, 2554 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2555 iwl_mvm_config_scan(mvm); 2556 } 2557 2558 /* Execute the common part for MLD and non-MLD modes */ 2559 void 2560 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2561 struct ieee80211_vif *vif, 2562 struct ieee80211_bss_conf *link_conf, 2563 u64 changes) 2564 { 2565 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2566 int ret; 2567 2568 if (changes & BSS_CHANGED_BEACON_INFO) { 2569 /* We received a beacon from the associated AP so 2570 * remove the session protection. 2571 */ 2572 iwl_mvm_stop_session_protection(mvm, vif); 2573 2574 iwl_mvm_sf_update(mvm, vif, false); 2575 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2576 } 2577 2578 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2579 /* Send power command on every beacon change, 2580 * because we may have not enabled beacon abort yet. 2581 */ 2582 BSS_CHANGED_BEACON_INFO)) { 2583 ret = iwl_mvm_power_update_mac(mvm); 2584 if (ret) 2585 IWL_ERR(mvm, "failed to update power mode\n"); 2586 } 2587 2588 if (changes & BSS_CHANGED_CQM) { 2589 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2590 /* reset cqm events tracking */ 2591 mvmvif->bf_data.last_cqm_event = 0; 2592 if (mvmvif->bf_data.bf_enabled) { 2593 /* FIXME: need to update per link when FW API will 2594 * support it 2595 */ 2596 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2597 if (ret) 2598 IWL_ERR(mvm, 2599 "failed to update CQM thresholds\n"); 2600 } 2601 } 2602 2603 if (changes & BSS_CHANGED_BANDWIDTH) 2604 iwl_mvm_update_link_smps(vif, link_conf); 2605 } 2606 2607 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2608 struct ieee80211_vif *vif, 2609 struct ieee80211_bss_conf *bss_conf, 2610 u64 changes) 2611 { 2612 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2613 int ret; 2614 2615 /* 2616 * Re-calculate the tsf id, as the leader-follower relations depend 2617 * on the beacon interval, which was not known when the station 2618 * interface was added. 2619 */ 2620 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2621 if ((vif->bss_conf.he_support && 2622 !iwlwifi_mod_params.disable_11ax) || 2623 (vif->bss_conf.eht_support && 2624 !iwlwifi_mod_params.disable_11be)) 2625 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2626 2627 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2628 } 2629 2630 /* Update MU EDCA params */ 2631 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2632 vif->cfg.assoc && 2633 ((vif->bss_conf.he_support && 2634 !iwlwifi_mod_params.disable_11ax) || 2635 (vif->bss_conf.eht_support && 2636 !iwlwifi_mod_params.disable_11be))) 2637 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2638 2639 /* 2640 * If we're not associated yet, take the (new) BSSID before associating 2641 * so the firmware knows. If we're already associated, then use the old 2642 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2643 * branch for disassociation below. 2644 */ 2645 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2646 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2647 2648 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2649 if (ret) 2650 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2651 2652 /* after sending it once, adopt mac80211 data */ 2653 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2654 mvmvif->associated = vif->cfg.assoc; 2655 2656 if (changes & BSS_CHANGED_ASSOC) { 2657 if (vif->cfg.assoc) { 2658 /* clear statistics to get clean beacon counter */ 2659 iwl_mvm_request_statistics(mvm, true); 2660 memset(&mvmvif->deflink.beacon_stats, 0, 2661 sizeof(mvmvif->deflink.beacon_stats)); 2662 2663 /* add quota for this interface */ 2664 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2665 if (ret) { 2666 IWL_ERR(mvm, "failed to update quotas\n"); 2667 return; 2668 } 2669 2670 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2671 &mvm->status) && 2672 !fw_has_capa(&mvm->fw->ucode_capa, 2673 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2674 /* 2675 * If we're restarting then the firmware will 2676 * obviously have lost synchronisation with 2677 * the AP. It will attempt to synchronise by 2678 * itself, but we can make it more reliable by 2679 * scheduling a session protection time event. 2680 * 2681 * The firmware needs to receive a beacon to 2682 * catch up with synchronisation, use 110% of 2683 * the beacon interval. 2684 * 2685 * Set a large maximum delay to allow for more 2686 * than a single interface. 2687 * 2688 * For new firmware versions, rely on the 2689 * firmware. This is relevant for DCM scenarios 2690 * only anyway. 2691 */ 2692 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2693 iwl_mvm_protect_session(mvm, vif, dur, dur, 2694 5 * dur, false); 2695 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2696 &mvm->status) && 2697 !vif->bss_conf.dtim_period) { 2698 /* 2699 * If we're not restarting and still haven't 2700 * heard a beacon (dtim period unknown) then 2701 * make sure we still have enough minimum time 2702 * remaining in the time event, since the auth 2703 * might actually have taken quite a while 2704 * (especially for SAE) and so the remaining 2705 * time could be small without us having heard 2706 * a beacon yet. 2707 */ 2708 iwl_mvm_protect_assoc(mvm, vif, 0); 2709 } 2710 2711 iwl_mvm_sf_update(mvm, vif, false); 2712 iwl_mvm_power_vif_assoc(mvm, vif); 2713 if (vif->p2p) { 2714 iwl_mvm_update_smps(mvm, vif, 2715 IWL_MVM_SMPS_REQ_PROT, 2716 IEEE80211_SMPS_DYNAMIC, 0); 2717 } 2718 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2719 iwl_mvm_mei_host_disassociated(mvm); 2720 /* 2721 * If update fails - SF might be running in associated 2722 * mode while disassociated - which is forbidden. 2723 */ 2724 ret = iwl_mvm_sf_update(mvm, vif, false); 2725 WARN_ONCE(ret && 2726 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2727 &mvm->status), 2728 "Failed to update SF upon disassociation\n"); 2729 2730 /* 2731 * If we get an assert during the connection (after the 2732 * station has been added, but before the vif is set 2733 * to associated), mac80211 will re-add the station and 2734 * then configure the vif. Since the vif is not 2735 * associated, we would remove the station here and 2736 * this would fail the recovery. 2737 */ 2738 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2739 &mvm->status)) { 2740 /* first remove remaining keys */ 2741 iwl_mvm_sec_key_remove_ap(mvm, vif, 2742 &mvmvif->deflink, 0); 2743 2744 /* 2745 * Remove AP station now that 2746 * the MAC is unassoc 2747 */ 2748 ret = iwl_mvm_rm_sta_id(mvm, vif, 2749 mvmvif->deflink.ap_sta_id); 2750 if (ret) 2751 IWL_ERR(mvm, 2752 "failed to remove AP station\n"); 2753 2754 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2755 } 2756 2757 /* remove quota for this interface */ 2758 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2759 if (ret) 2760 IWL_ERR(mvm, "failed to update quotas\n"); 2761 2762 /* this will take the cleared BSSID from bss_conf */ 2763 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2764 if (ret) 2765 IWL_ERR(mvm, 2766 "failed to update MAC %pM (clear after unassoc)\n", 2767 vif->addr); 2768 } 2769 2770 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2771 } 2772 2773 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2774 changes); 2775 } 2776 2777 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2778 struct ieee80211_vif *vif, 2779 int *ret) 2780 { 2781 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2782 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2783 int i; 2784 2785 lockdep_assert_held(&mvm->mutex); 2786 2787 mvmvif->ap_assoc_sta_count = 0; 2788 2789 /* must be set before quota calculations */ 2790 mvmvif->ap_ibss_active = true; 2791 2792 /* send all the early keys to the device now */ 2793 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2794 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2795 2796 if (!key) 2797 continue; 2798 2799 mvmvif->ap_early_keys[i] = NULL; 2800 2801 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2802 if (*ret) 2803 return true; 2804 } 2805 2806 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2807 iwl_mvm_vif_set_low_latency(mvmvif, true, 2808 LOW_LATENCY_VIF_TYPE); 2809 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2810 } 2811 2812 /* power updated needs to be done before quotas */ 2813 iwl_mvm_power_update_mac(mvm); 2814 2815 return false; 2816 } 2817 2818 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2819 struct ieee80211_vif *vif, 2820 struct ieee80211_bss_conf *link_conf) 2821 { 2822 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2823 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2824 int ret; 2825 2826 mutex_lock(&mvm->mutex); 2827 2828 /* 2829 * Re-calculate the tsf id, as the leader-follower relations depend on 2830 * the beacon interval, which was not known when the AP interface 2831 * was added. 2832 */ 2833 if (vif->type == NL80211_IFTYPE_AP) 2834 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2835 2836 /* For older devices need to send beacon template before adding mac 2837 * context. For the newer, the beacon is a resource that belongs to a 2838 * MAC, so need to send beacon template after adding the mac. 2839 */ 2840 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2841 /* Add the mac context */ 2842 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2843 if (ret) 2844 goto out_unlock; 2845 2846 /* Send the beacon template */ 2847 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2848 if (ret) 2849 goto out_unlock; 2850 } else { 2851 /* Send the beacon template */ 2852 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2853 if (ret) 2854 goto out_unlock; 2855 2856 /* Add the mac context */ 2857 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2858 if (ret) 2859 goto out_unlock; 2860 } 2861 2862 /* Perform the binding */ 2863 ret = iwl_mvm_binding_add_vif(mvm, vif); 2864 if (ret) 2865 goto out_remove; 2866 2867 /* 2868 * This is not very nice, but the simplest: 2869 * For older FWs adding the mcast sta before the bcast station may 2870 * cause assert 0x2b00. 2871 * This is fixed in later FW so make the order of removal depend on 2872 * the TLV 2873 */ 2874 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2875 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2876 if (ret) 2877 goto out_unbind; 2878 /* 2879 * Send the bcast station. At this stage the TBTT and DTIM time 2880 * events are added and applied to the scheduler 2881 */ 2882 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2883 if (ret) { 2884 iwl_mvm_rm_mcast_sta(mvm, vif); 2885 goto out_unbind; 2886 } 2887 } else { 2888 /* 2889 * Send the bcast station. At this stage the TBTT and DTIM time 2890 * events are added and applied to the scheduler 2891 */ 2892 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2893 if (ret) 2894 goto out_unbind; 2895 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2896 if (ret) { 2897 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2898 goto out_unbind; 2899 } 2900 } 2901 2902 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2903 goto out_failed; 2904 2905 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2906 if (ret) 2907 goto out_failed; 2908 2909 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2910 if (vif->p2p && mvm->p2p_device_vif) 2911 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2912 2913 iwl_mvm_bt_coex_vif_change(mvm); 2914 2915 /* we don't support TDLS during DCM */ 2916 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2917 iwl_mvm_teardown_tdls_peers(mvm); 2918 2919 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2920 2921 goto out_unlock; 2922 2923 out_failed: 2924 iwl_mvm_power_update_mac(mvm); 2925 mvmvif->ap_ibss_active = false; 2926 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2927 iwl_mvm_rm_mcast_sta(mvm, vif); 2928 out_unbind: 2929 iwl_mvm_binding_remove_vif(mvm, vif); 2930 out_remove: 2931 iwl_mvm_mac_ctxt_remove(mvm, vif); 2932 out_unlock: 2933 mutex_unlock(&mvm->mutex); 2934 return ret; 2935 } 2936 2937 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2938 struct ieee80211_vif *vif, 2939 struct ieee80211_bss_conf *link_conf) 2940 { 2941 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2942 } 2943 2944 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2945 struct ieee80211_vif *vif) 2946 { 2947 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2948 } 2949 2950 /* Common part for MLD and non-MLD ops */ 2951 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2952 struct ieee80211_vif *vif) 2953 { 2954 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2955 2956 lockdep_assert_held(&mvm->mutex); 2957 2958 iwl_mvm_prepare_mac_removal(mvm, vif); 2959 2960 /* Handle AP stop while in CSA */ 2961 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2962 iwl_mvm_remove_time_event(mvm, mvmvif, 2963 &mvmvif->time_event_data); 2964 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2965 mvmvif->csa_countdown = false; 2966 } 2967 2968 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2969 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2970 mvm->csa_tx_block_bcn_timeout = 0; 2971 } 2972 2973 mvmvif->ap_ibss_active = false; 2974 mvm->ap_last_beacon_gp2 = 0; 2975 2976 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2977 iwl_mvm_vif_set_low_latency(mvmvif, false, 2978 LOW_LATENCY_VIF_TYPE); 2979 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2980 } 2981 2982 iwl_mvm_bt_coex_vif_change(mvm); 2983 } 2984 2985 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2986 struct ieee80211_vif *vif, 2987 struct ieee80211_bss_conf *link_conf) 2988 { 2989 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2990 2991 mutex_lock(&mvm->mutex); 2992 2993 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2994 2995 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2996 if (vif->p2p && mvm->p2p_device_vif) 2997 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2998 2999 iwl_mvm_update_quotas(mvm, false, NULL); 3000 3001 iwl_mvm_ftm_responder_clear(mvm, vif); 3002 3003 /* 3004 * This is not very nice, but the simplest: 3005 * For older FWs removing the mcast sta before the bcast station may 3006 * cause assert 0x2b00. 3007 * This is fixed in later FW (which will stop beaconing when removing 3008 * bcast station). 3009 * So make the order of removal depend on the TLV 3010 */ 3011 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3012 iwl_mvm_rm_mcast_sta(mvm, vif); 3013 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3014 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3015 iwl_mvm_rm_mcast_sta(mvm, vif); 3016 iwl_mvm_binding_remove_vif(mvm, vif); 3017 3018 iwl_mvm_power_update_mac(mvm); 3019 3020 iwl_mvm_mac_ctxt_remove(mvm, vif); 3021 3022 mutex_unlock(&mvm->mutex); 3023 } 3024 3025 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3026 struct ieee80211_vif *vif, 3027 struct ieee80211_bss_conf *link_conf) 3028 { 3029 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3030 } 3031 3032 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3033 struct ieee80211_vif *vif) 3034 { 3035 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3036 } 3037 3038 static void 3039 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3040 struct ieee80211_vif *vif, 3041 struct ieee80211_bss_conf *bss_conf, 3042 u64 changes) 3043 { 3044 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3045 3046 /* Changes will be applied when the AP/IBSS is started */ 3047 if (!mvmvif->ap_ibss_active) 3048 return; 3049 3050 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3051 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3052 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3053 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3054 3055 /* Need to send a new beacon template to the FW */ 3056 if (changes & BSS_CHANGED_BEACON && 3057 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3058 IWL_WARN(mvm, "Failed updating beacon data\n"); 3059 3060 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3061 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3062 3063 if (ret) 3064 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3065 ret); 3066 } 3067 3068 } 3069 3070 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3071 struct ieee80211_vif *vif, 3072 struct ieee80211_bss_conf *bss_conf, 3073 u64 changes) 3074 { 3075 static const struct iwl_mvm_bss_info_changed_ops callbacks = { 3076 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station, 3077 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss, 3078 }; 3079 3080 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks, 3081 changes); 3082 } 3083 3084 void 3085 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw, 3086 struct ieee80211_vif *vif, 3087 struct ieee80211_bss_conf *bss_conf, 3088 const struct iwl_mvm_bss_info_changed_ops *callbacks, 3089 u64 changes) 3090 { 3091 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3092 3093 mutex_lock(&mvm->mutex); 3094 3095 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3096 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3097 3098 switch (vif->type) { 3099 case NL80211_IFTYPE_STATION: 3100 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes); 3101 break; 3102 case NL80211_IFTYPE_AP: 3103 case NL80211_IFTYPE_ADHOC: 3104 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf, 3105 changes); 3106 break; 3107 case NL80211_IFTYPE_MONITOR: 3108 if (changes & BSS_CHANGED_MU_GROUPS) 3109 iwl_mvm_update_mu_groups(mvm, vif); 3110 break; 3111 default: 3112 /* shouldn't happen */ 3113 WARN_ON_ONCE(1); 3114 } 3115 3116 if (changes & BSS_CHANGED_TXPOWER) { 3117 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3118 bss_conf->txpower); 3119 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3120 } 3121 3122 mutex_unlock(&mvm->mutex); 3123 } 3124 3125 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3126 struct ieee80211_scan_request *hw_req) 3127 { 3128 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3129 int ret; 3130 3131 if (hw_req->req.n_channels == 0 || 3132 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3133 return -EINVAL; 3134 3135 mutex_lock(&mvm->mutex); 3136 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3137 mutex_unlock(&mvm->mutex); 3138 3139 return ret; 3140 } 3141 3142 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3143 struct ieee80211_vif *vif) 3144 { 3145 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3146 3147 mutex_lock(&mvm->mutex); 3148 3149 /* Due to a race condition, it's possible that mac80211 asks 3150 * us to stop a hw_scan when it's already stopped. This can 3151 * happen, for instance, if we stopped the scan ourselves, 3152 * called ieee80211_scan_completed() and the userspace called 3153 * cancel scan scan before ieee80211_scan_work() could run. 3154 * To handle that, simply return if the scan is not running. 3155 */ 3156 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3157 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3158 3159 mutex_unlock(&mvm->mutex); 3160 } 3161 3162 void 3163 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3164 struct ieee80211_sta *sta, u16 tids, 3165 int num_frames, 3166 enum ieee80211_frame_release_type reason, 3167 bool more_data) 3168 { 3169 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3170 3171 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3172 3173 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3174 tids, more_data, false); 3175 } 3176 3177 void 3178 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3179 struct ieee80211_sta *sta, u16 tids, 3180 int num_frames, 3181 enum ieee80211_frame_release_type reason, 3182 bool more_data) 3183 { 3184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3185 3186 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3187 3188 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3189 tids, more_data, true); 3190 } 3191 3192 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3193 enum sta_notify_cmd cmd, 3194 struct ieee80211_sta *sta) 3195 { 3196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3197 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3198 unsigned long txqs = 0, tids = 0; 3199 int tid; 3200 3201 /* 3202 * If we have TVQM then we get too high queue numbers - luckily 3203 * we really shouldn't get here with that because such hardware 3204 * should have firmware supporting buffer station offload. 3205 */ 3206 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3207 return; 3208 3209 spin_lock_bh(&mvmsta->lock); 3210 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3211 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3212 3213 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3214 continue; 3215 3216 __set_bit(tid_data->txq_id, &txqs); 3217 3218 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3219 continue; 3220 3221 __set_bit(tid, &tids); 3222 } 3223 3224 switch (cmd) { 3225 case STA_NOTIFY_SLEEP: 3226 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3227 ieee80211_sta_set_buffered(sta, tid, true); 3228 3229 if (txqs) 3230 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3231 /* 3232 * The fw updates the STA to be asleep. Tx packets on the Tx 3233 * queues to this station will not be transmitted. The fw will 3234 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3235 */ 3236 break; 3237 case STA_NOTIFY_AWAKE: 3238 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3239 break; 3240 3241 if (txqs) 3242 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3243 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3244 break; 3245 default: 3246 break; 3247 } 3248 spin_unlock_bh(&mvmsta->lock); 3249 } 3250 3251 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3252 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3253 { 3254 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3255 } 3256 3257 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3258 { 3259 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3260 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3261 struct ieee80211_sta *sta; 3262 struct iwl_mvm_sta *mvmsta; 3263 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3264 3265 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3266 return; 3267 3268 rcu_read_lock(); 3269 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3270 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3271 rcu_read_unlock(); 3272 return; 3273 } 3274 3275 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3276 3277 if (!mvmsta->vif || 3278 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3279 rcu_read_unlock(); 3280 return; 3281 } 3282 3283 if (mvmsta->sleeping != sleeping) { 3284 mvmsta->sleeping = sleeping; 3285 __iwl_mvm_mac_sta_notify(mvm->hw, 3286 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3287 sta); 3288 ieee80211_sta_ps_transition(sta, sleeping); 3289 } 3290 3291 if (sleeping) { 3292 switch (notif->type) { 3293 case IWL_MVM_PM_EVENT_AWAKE: 3294 case IWL_MVM_PM_EVENT_ASLEEP: 3295 break; 3296 case IWL_MVM_PM_EVENT_UAPSD: 3297 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3298 break; 3299 case IWL_MVM_PM_EVENT_PS_POLL: 3300 ieee80211_sta_pspoll(sta); 3301 break; 3302 default: 3303 break; 3304 } 3305 } 3306 3307 rcu_read_unlock(); 3308 } 3309 3310 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3311 struct ieee80211_vif *vif, 3312 struct ieee80211_sta *sta) 3313 { 3314 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3315 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3316 unsigned int link_id; 3317 3318 /* 3319 * This is called before mac80211 does RCU synchronisation, 3320 * so here we already invalidate our internal RCU-protected 3321 * station pointer. The rest of the code will thus no longer 3322 * be able to find the station this way, and we don't rely 3323 * on further RCU synchronisation after the sta_state() 3324 * callback deleted the station. 3325 * Since there's mvm->mutex here, no need to have RCU lock for 3326 * mvm_sta->link access. 3327 */ 3328 mutex_lock(&mvm->mutex); 3329 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3330 struct iwl_mvm_link_sta *link_sta; 3331 u32 sta_id; 3332 3333 if (!mvm_sta->link[link_id]) 3334 continue; 3335 3336 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3337 lockdep_is_held(&mvm->mutex)); 3338 sta_id = link_sta->sta_id; 3339 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3340 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3341 ERR_PTR(-ENOENT)); 3342 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3343 } 3344 } 3345 mutex_unlock(&mvm->mutex); 3346 } 3347 3348 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3349 const u8 *bssid) 3350 { 3351 int i; 3352 3353 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3354 struct iwl_mvm_tcm_mac *mdata; 3355 3356 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3357 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3358 mdata->opened_rx_ba_sessions = false; 3359 } 3360 3361 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3362 return; 3363 3364 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3365 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3366 return; 3367 } 3368 3369 if (!vif->p2p && 3370 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3371 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3372 return; 3373 } 3374 3375 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3376 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3377 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3378 return; 3379 } 3380 } 3381 3382 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3383 } 3384 3385 static void 3386 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3387 struct ieee80211_vif *vif, u8 *peer_addr, 3388 enum nl80211_tdls_operation action) 3389 { 3390 struct iwl_fw_dbg_trigger_tlv *trig; 3391 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3392 3393 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3394 FW_DBG_TRIGGER_TDLS); 3395 if (!trig) 3396 return; 3397 3398 tdls_trig = (void *)trig->data; 3399 3400 if (!(tdls_trig->action_bitmap & BIT(action))) 3401 return; 3402 3403 if (tdls_trig->peer_mode && 3404 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3405 return; 3406 3407 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3408 "TDLS event occurred, peer %pM, action %d", 3409 peer_addr, action); 3410 } 3411 3412 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3413 bool tolerated; 3414 }; 3415 3416 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3417 struct cfg80211_bss *bss, 3418 void *_data) 3419 { 3420 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3421 const struct cfg80211_bss_ies *ies; 3422 const struct element *elem; 3423 3424 rcu_read_lock(); 3425 ies = rcu_dereference(bss->ies); 3426 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3427 ies->len); 3428 3429 if (!elem || elem->datalen < 10 || 3430 !(elem->data[10] & 3431 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3432 data->tolerated = false; 3433 } 3434 rcu_read_unlock(); 3435 } 3436 3437 static void 3438 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3439 struct ieee80211_vif *vif, 3440 unsigned int link_id, 3441 struct ieee80211_bss_conf *link_conf) 3442 { 3443 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3444 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3445 .tolerated = true, 3446 }; 3447 3448 if (WARN_ON_ONCE(!link_conf->chandef.chan || 3449 !mvmvif->link[link_id])) 3450 return; 3451 3452 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3453 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3454 return; 3455 } 3456 3457 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef, 3458 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3459 &iter_data); 3460 3461 /* 3462 * If there is at least one AP on radar channel that cannot 3463 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3464 */ 3465 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3466 } 3467 3468 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3469 struct ieee80211_vif *vif) 3470 { 3471 struct ieee80211_supported_band *sband; 3472 const struct ieee80211_sta_he_cap *he_cap; 3473 3474 if (vif->type != NL80211_IFTYPE_STATION) 3475 return; 3476 3477 if (!mvm->cca_40mhz_workaround) 3478 return; 3479 3480 /* decrement and check that we reached zero */ 3481 mvm->cca_40mhz_workaround--; 3482 if (mvm->cca_40mhz_workaround) 3483 return; 3484 3485 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3486 3487 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3488 3489 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3490 3491 if (he_cap) { 3492 /* we know that ours is writable */ 3493 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3494 3495 he->he_cap_elem.phy_cap_info[0] |= 3496 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3497 } 3498 } 3499 3500 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3501 struct ieee80211_vif *vif, 3502 struct iwl_mvm_sta *mvm_sta) 3503 { 3504 #if IS_ENABLED(CONFIG_IWLMEI) 3505 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3506 struct iwl_mei_conn_info conn_info = { 3507 .ssid_len = vif->cfg.ssid_len, 3508 }; 3509 3510 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3511 return; 3512 3513 if (!mvm->mei_registered) 3514 return; 3515 3516 /* FIXME: MEI needs to be updated for MLO */ 3517 if (!vif->bss_conf.chandef.chan) 3518 return; 3519 3520 conn_info.channel = vif->bss_conf.chandef.chan->hw_value; 3521 3522 switch (mvm_sta->pairwise_cipher) { 3523 case WLAN_CIPHER_SUITE_TKIP: 3524 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3525 break; 3526 case WLAN_CIPHER_SUITE_CCMP: 3527 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3528 break; 3529 case WLAN_CIPHER_SUITE_GCMP: 3530 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3531 break; 3532 case WLAN_CIPHER_SUITE_GCMP_256: 3533 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3534 break; 3535 case 0: 3536 /* open profile */ 3537 break; 3538 default: 3539 /* cipher not supported, don't send anything to iwlmei */ 3540 return; 3541 } 3542 3543 switch (mvmvif->rekey_data.akm) { 3544 case WLAN_AKM_SUITE_SAE & 0xff: 3545 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3546 break; 3547 case WLAN_AKM_SUITE_PSK & 0xff: 3548 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3549 break; 3550 case WLAN_AKM_SUITE_8021X & 0xff: 3551 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3552 break; 3553 case 0: 3554 /* open profile */ 3555 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3556 break; 3557 default: 3558 /* auth method / AKM not supported */ 3559 /* TODO: All the FT vesions of these? */ 3560 return; 3561 } 3562 3563 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3564 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3565 3566 /* TODO: add support for collocated AP data */ 3567 iwl_mei_host_associated(&conn_info, NULL); 3568 #endif 3569 } 3570 3571 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3572 struct ieee80211_vif *vif, 3573 bool force_assoc_off) 3574 { 3575 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3576 } 3577 3578 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3579 struct ieee80211_vif *vif, 3580 struct ieee80211_sta *sta, 3581 enum ieee80211_sta_state old_state, 3582 enum ieee80211_sta_state new_state) 3583 { 3584 static const struct iwl_mvm_sta_state_ops callbacks = { 3585 .add_sta = iwl_mvm_add_sta, 3586 .update_sta = iwl_mvm_update_sta, 3587 .rm_sta = iwl_mvm_rm_sta, 3588 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3589 }; 3590 3591 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3592 &callbacks); 3593 } 3594 3595 /* FIXME: temporary making two assumptions in all sta handling functions: 3596 * (1) when setting sta state, the link exists and protected 3597 * (2) if a link is valid in sta then it's valid in vif (can 3598 * use same index in the link array) 3599 */ 3600 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3601 struct ieee80211_vif *vif, 3602 struct ieee80211_sta *sta) 3603 { 3604 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3605 unsigned int link_id; 3606 3607 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3608 struct ieee80211_bss_conf *conf = 3609 link_conf_dereference_check(vif, link_id); 3610 struct ieee80211_link_sta *link_sta = 3611 link_sta_dereference_check(sta, link_id); 3612 3613 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3614 continue; 3615 3616 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3617 mvmvif->link[link_id]->phy_ctxt->channel->band); 3618 } 3619 } 3620 3621 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3622 3623 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3624 struct ieee80211_vif *vif, 3625 struct ieee80211_sta *sta) 3626 { 3627 struct ieee80211_link_sta *link_sta; 3628 unsigned int link_id; 3629 3630 /* Beacon interval check - firmware will crash if the beacon 3631 * interval is less than 16. We can't avoid connecting at all, 3632 * so refuse the station state change, this will cause mac80211 3633 * to abandon attempts to connect to this AP, and eventually 3634 * wpa_s will blocklist the AP... 3635 */ 3636 3637 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3638 struct ieee80211_bss_conf *link_conf = 3639 link_conf_dereference_protected(vif, link_id); 3640 3641 if (!link_conf) 3642 continue; 3643 3644 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3645 IWL_ERR(mvm, 3646 "Beacon interval %d for AP %pM is too small\n", 3647 link_conf->beacon_int, link_sta->addr); 3648 return false; 3649 } 3650 3651 link_conf->he_support = link_sta->he_cap.has_he; 3652 } 3653 3654 return true; 3655 } 3656 3657 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3658 struct ieee80211_vif *vif, 3659 struct ieee80211_sta *sta, 3660 bool is_sta) 3661 { 3662 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3663 struct ieee80211_link_sta *link_sta; 3664 unsigned int link_id; 3665 3666 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3667 struct ieee80211_bss_conf *link_conf = 3668 link_conf_dereference_protected(vif, link_id); 3669 3670 if (!link_conf || !mvmvif->link[link_id]) 3671 continue; 3672 3673 link_conf->he_support = link_sta->he_cap.has_he; 3674 3675 if (is_sta) { 3676 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3677 if (link_sta->he_cap.has_he) 3678 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3679 link_id, 3680 link_conf); 3681 } 3682 } 3683 } 3684 3685 static int 3686 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3687 struct ieee80211_vif *vif, 3688 struct ieee80211_sta *sta, 3689 const struct iwl_mvm_sta_state_ops *callbacks) 3690 { 3691 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3692 struct ieee80211_link_sta *link_sta; 3693 unsigned int i; 3694 int ret; 3695 3696 lockdep_assert_held(&mvm->mutex); 3697 3698 if (vif->type == NL80211_IFTYPE_STATION && 3699 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3700 return -EINVAL; 3701 3702 if (sta->tdls && 3703 (vif->p2p || 3704 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3705 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3706 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3707 return -EBUSY; 3708 } 3709 3710 ret = callbacks->add_sta(mvm, vif, sta); 3711 if (sta->tdls && ret == 0) { 3712 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3713 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3714 NL80211_TDLS_SETUP); 3715 } 3716 3717 for_each_sta_active_link(vif, sta, link_sta, i) 3718 link_sta->agg.max_rc_amsdu_len = 1; 3719 3720 ieee80211_sta_recalc_aggregates(sta); 3721 3722 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3723 mvmvif->ap_sta = sta; 3724 3725 return 0; 3726 } 3727 3728 static int 3729 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3730 struct iwl_mvm *mvm, 3731 struct ieee80211_vif *vif, 3732 struct ieee80211_sta *sta, 3733 const struct iwl_mvm_sta_state_ops *callbacks) 3734 { 3735 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3736 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3737 struct ieee80211_link_sta *link_sta; 3738 unsigned int link_id; 3739 3740 lockdep_assert_held(&mvm->mutex); 3741 3742 if (vif->type == NL80211_IFTYPE_AP) { 3743 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3744 mvmvif->ap_assoc_sta_count++; 3745 callbacks->mac_ctxt_changed(mvm, vif, false); 3746 3747 /* since the below is not for MLD API, it's ok to use 3748 * the default bss_conf 3749 */ 3750 if (!mvm->mld_api_is_used && 3751 ((vif->bss_conf.he_support && 3752 !iwlwifi_mod_params.disable_11ax) || 3753 (vif->bss_conf.eht_support && 3754 !iwlwifi_mod_params.disable_11be))) 3755 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3756 } else if (vif->type == NL80211_IFTYPE_STATION) { 3757 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3758 3759 callbacks->mac_ctxt_changed(mvm, vif, false); 3760 3761 if (!mvm->mld_api_is_used) 3762 goto out; 3763 3764 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3765 struct ieee80211_bss_conf *link_conf = 3766 link_conf_dereference_protected(vif, link_id); 3767 3768 if (WARN_ON(!link_conf)) 3769 return -EINVAL; 3770 if (!mvmvif->link[link_id]) 3771 continue; 3772 3773 iwl_mvm_link_changed(mvm, vif, link_conf, 3774 LINK_CONTEXT_MODIFY_ALL & 3775 ~LINK_CONTEXT_MODIFY_ACTIVE, 3776 true); 3777 } 3778 } 3779 3780 out: 3781 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3782 3783 return callbacks->update_sta(mvm, vif, sta); 3784 } 3785 3786 static int 3787 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3788 struct ieee80211_vif *vif, 3789 struct ieee80211_sta *sta, 3790 const struct iwl_mvm_sta_state_ops *callbacks) 3791 { 3792 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3793 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3794 3795 lockdep_assert_held(&mvm->mutex); 3796 3797 /* we don't support TDLS during DCM */ 3798 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3799 iwl_mvm_teardown_tdls_peers(mvm); 3800 3801 if (sta->tdls) { 3802 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3803 NL80211_TDLS_ENABLE_LINK); 3804 } else { 3805 /* enable beacon filtering */ 3806 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3807 3808 mvmvif->authorized = 1; 3809 3810 callbacks->mac_ctxt_changed(mvm, vif, false); 3811 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3812 } 3813 3814 mvm_sta->authorized = true; 3815 3816 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3817 3818 return 0; 3819 } 3820 3821 static int 3822 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3823 struct ieee80211_vif *vif, 3824 struct ieee80211_sta *sta, 3825 const struct iwl_mvm_sta_state_ops *callbacks) 3826 { 3827 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3828 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3829 3830 lockdep_assert_held(&mvm->mutex); 3831 3832 mvmsta->authorized = false; 3833 3834 /* once we move into assoc state, need to update rate scale to 3835 * disable using wide bandwidth 3836 */ 3837 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3838 3839 if (!sta->tdls) { 3840 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3841 * yet to avoid sending high prio again for a little 3842 * time. 3843 */ 3844 mvmvif->authorized = 0; 3845 3846 /* disable beacon filtering */ 3847 iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3848 } 3849 3850 return 0; 3851 } 3852 3853 /* Common part for MLD and non-MLD modes */ 3854 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3855 struct ieee80211_vif *vif, 3856 struct ieee80211_sta *sta, 3857 enum ieee80211_sta_state old_state, 3858 enum ieee80211_sta_state new_state, 3859 const struct iwl_mvm_sta_state_ops *callbacks) 3860 { 3861 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3862 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3863 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3864 struct ieee80211_link_sta *link_sta; 3865 unsigned int link_id; 3866 int ret; 3867 3868 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3869 sta->addr, old_state, new_state); 3870 3871 /* 3872 * If we are in a STA removal flow and in DQA mode: 3873 * 3874 * This is after the sync_rcu part, so the queues have already been 3875 * flushed. No more TXs on their way in mac80211's path, and no more in 3876 * the queues. 3877 * Also, we won't be getting any new TX frames for this station. 3878 * What we might have are deferred TX frames that need to be taken care 3879 * of. 3880 * 3881 * Drop any still-queued deferred-frame before removing the STA, and 3882 * make sure the worker is no longer handling frames for this STA. 3883 */ 3884 if (old_state == IEEE80211_STA_NONE && 3885 new_state == IEEE80211_STA_NOTEXIST) { 3886 flush_work(&mvm->add_stream_wk); 3887 3888 /* 3889 * No need to make sure deferred TX indication is off since the 3890 * worker will already remove it if it was on 3891 */ 3892 3893 /* 3894 * Additionally, reset the 40 MHz capability if we disconnected 3895 * from the AP now. 3896 */ 3897 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3898 3899 /* Also free dup data just in case any assertions below fail */ 3900 kfree(mvm_sta->dup_data); 3901 } 3902 3903 mutex_lock(&mvm->mutex); 3904 3905 /* this would be a mac80211 bug ... but don't crash */ 3906 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3907 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) { 3908 mutex_unlock(&mvm->mutex); 3909 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3910 &mvm->status) ? 0 : -EINVAL; 3911 } 3912 } 3913 3914 /* track whether or not the station is associated */ 3915 mvm_sta->sta_state = new_state; 3916 3917 if (old_state == IEEE80211_STA_NOTEXIST && 3918 new_state == IEEE80211_STA_NONE) { 3919 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3920 callbacks); 3921 if (ret < 0) 3922 goto out_unlock; 3923 } else if (old_state == IEEE80211_STA_NONE && 3924 new_state == IEEE80211_STA_AUTH) { 3925 /* 3926 * EBS may be disabled due to previous failures reported by FW. 3927 * Reset EBS status here assuming environment has been changed. 3928 */ 3929 mvm->last_ebs_successful = true; 3930 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3931 ret = 0; 3932 } else if (old_state == IEEE80211_STA_AUTH && 3933 new_state == IEEE80211_STA_ASSOC) { 3934 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3935 callbacks); 3936 } else if (old_state == IEEE80211_STA_ASSOC && 3937 new_state == IEEE80211_STA_AUTHORIZED) { 3938 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3939 callbacks); 3940 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3941 new_state == IEEE80211_STA_ASSOC) { 3942 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3943 callbacks); 3944 } else if (old_state == IEEE80211_STA_ASSOC && 3945 new_state == IEEE80211_STA_AUTH) { 3946 if (vif->type == NL80211_IFTYPE_AP) { 3947 mvmvif->ap_assoc_sta_count--; 3948 callbacks->mac_ctxt_changed(mvm, vif, false); 3949 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3950 iwl_mvm_stop_session_protection(mvm, vif); 3951 ret = 0; 3952 } else if (old_state == IEEE80211_STA_AUTH && 3953 new_state == IEEE80211_STA_NONE) { 3954 ret = 0; 3955 } else if (old_state == IEEE80211_STA_NONE && 3956 new_state == IEEE80211_STA_NOTEXIST) { 3957 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3958 iwl_mvm_stop_session_protection(mvm, vif); 3959 mvmvif->ap_sta = NULL; 3960 } 3961 ret = callbacks->rm_sta(mvm, vif, sta); 3962 if (sta->tdls) { 3963 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3964 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3965 NL80211_TDLS_DISABLE_LINK); 3966 } 3967 3968 if (unlikely(ret && 3969 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3970 &mvm->status))) 3971 ret = 0; 3972 } else { 3973 ret = -EIO; 3974 } 3975 out_unlock: 3976 mutex_unlock(&mvm->mutex); 3977 3978 if (sta->tdls && ret == 0) { 3979 if (old_state == IEEE80211_STA_NOTEXIST && 3980 new_state == IEEE80211_STA_NONE) 3981 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3982 else if (old_state == IEEE80211_STA_NONE && 3983 new_state == IEEE80211_STA_NOTEXIST) 3984 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3985 } 3986 3987 return ret; 3988 } 3989 3990 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3991 { 3992 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3993 3994 mvm->rts_threshold = value; 3995 3996 return 0; 3997 } 3998 3999 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4000 struct ieee80211_sta *sta, u32 changed) 4001 { 4002 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4003 4004 if (changed & (IEEE80211_RC_BW_CHANGED | 4005 IEEE80211_RC_SUPP_RATES_CHANGED | 4006 IEEE80211_RC_NSS_CHANGED)) 4007 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4008 4009 if (vif->type == NL80211_IFTYPE_STATION && 4010 changed & IEEE80211_RC_NSS_CHANGED) 4011 iwl_mvm_sf_update(mvm, vif, false); 4012 } 4013 4014 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4015 struct ieee80211_vif *vif, 4016 unsigned int link_id, u16 ac, 4017 const struct ieee80211_tx_queue_params *params) 4018 { 4019 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4020 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4021 4022 mvmvif->deflink.queue_params[ac] = *params; 4023 4024 /* 4025 * No need to update right away, we'll get BSS_CHANGED_QOS 4026 * The exception is P2P_DEVICE interface which needs immediate update. 4027 */ 4028 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4029 int ret; 4030 4031 mutex_lock(&mvm->mutex); 4032 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4033 mutex_unlock(&mvm->mutex); 4034 return ret; 4035 } 4036 return 0; 4037 } 4038 4039 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4040 struct ieee80211_vif *vif, 4041 struct ieee80211_prep_tx_info *info) 4042 { 4043 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4044 4045 mutex_lock(&mvm->mutex); 4046 iwl_mvm_protect_assoc(mvm, vif, info->duration); 4047 mutex_unlock(&mvm->mutex); 4048 } 4049 4050 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4051 struct ieee80211_vif *vif, 4052 struct ieee80211_prep_tx_info *info) 4053 { 4054 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4055 4056 /* for successful cases (auth/assoc), don't cancel session protection */ 4057 if (info->success) 4058 return; 4059 4060 mutex_lock(&mvm->mutex); 4061 iwl_mvm_stop_session_protection(mvm, vif); 4062 mutex_unlock(&mvm->mutex); 4063 } 4064 4065 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4066 struct ieee80211_vif *vif, 4067 struct cfg80211_sched_scan_request *req, 4068 struct ieee80211_scan_ies *ies) 4069 { 4070 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4071 4072 int ret; 4073 4074 mutex_lock(&mvm->mutex); 4075 4076 if (!vif->cfg.idle) { 4077 ret = -EBUSY; 4078 goto out; 4079 } 4080 4081 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4082 4083 out: 4084 mutex_unlock(&mvm->mutex); 4085 return ret; 4086 } 4087 4088 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4089 struct ieee80211_vif *vif) 4090 { 4091 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4092 int ret; 4093 4094 mutex_lock(&mvm->mutex); 4095 4096 /* Due to a race condition, it's possible that mac80211 asks 4097 * us to stop a sched_scan when it's already stopped. This 4098 * can happen, for instance, if we stopped the scan ourselves, 4099 * called ieee80211_sched_scan_stopped() and the userspace called 4100 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4101 * could run. To handle this, simply return if the scan is 4102 * not running. 4103 */ 4104 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4105 mutex_unlock(&mvm->mutex); 4106 return 0; 4107 } 4108 4109 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4110 mutex_unlock(&mvm->mutex); 4111 iwl_mvm_wait_for_async_handlers(mvm); 4112 4113 return ret; 4114 } 4115 4116 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4117 enum set_key_cmd cmd, 4118 struct ieee80211_vif *vif, 4119 struct ieee80211_sta *sta, 4120 struct ieee80211_key_conf *key) 4121 { 4122 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4124 struct iwl_mvm_sta *mvmsta = NULL; 4125 struct iwl_mvm_key_pn *ptk_pn = NULL; 4126 int keyidx = key->keyidx; 4127 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4128 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4129 int ret, i; 4130 u8 key_offset; 4131 4132 if (sta) 4133 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4134 4135 switch (key->cipher) { 4136 case WLAN_CIPHER_SUITE_TKIP: 4137 if (!mvm->trans->trans_cfg->gen2) { 4138 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4139 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4140 } else if (vif->type == NL80211_IFTYPE_STATION) { 4141 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4142 } else { 4143 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4144 return -EOPNOTSUPP; 4145 } 4146 break; 4147 case WLAN_CIPHER_SUITE_CCMP: 4148 case WLAN_CIPHER_SUITE_GCMP: 4149 case WLAN_CIPHER_SUITE_GCMP_256: 4150 if (!iwl_mvm_has_new_tx_api(mvm)) 4151 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4152 break; 4153 case WLAN_CIPHER_SUITE_AES_CMAC: 4154 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4155 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4156 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4157 break; 4158 case WLAN_CIPHER_SUITE_WEP40: 4159 case WLAN_CIPHER_SUITE_WEP104: 4160 if (vif->type == NL80211_IFTYPE_STATION) 4161 break; 4162 if (iwl_mvm_has_new_tx_api(mvm)) 4163 return -EOPNOTSUPP; 4164 /* support HW crypto on TX */ 4165 return 0; 4166 default: 4167 return -EOPNOTSUPP; 4168 } 4169 4170 switch (cmd) { 4171 case SET_KEY: 4172 if (vif->type == NL80211_IFTYPE_STATION && 4173 (keyidx == 6 || keyidx == 7)) 4174 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4175 key); 4176 4177 if ((vif->type == NL80211_IFTYPE_ADHOC || 4178 vif->type == NL80211_IFTYPE_AP) && !sta) { 4179 /* 4180 * GTK on AP interface is a TX-only key, return 0; 4181 * on IBSS they're per-station and because we're lazy 4182 * we don't support them for RX, so do the same. 4183 * CMAC/GMAC in AP/IBSS modes must be done in software. 4184 * 4185 * Except, of course, beacon protection - it must be 4186 * offloaded since we just set a beacon template. 4187 */ 4188 if (keyidx < 6 && 4189 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4190 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4191 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4192 ret = -EOPNOTSUPP; 4193 break; 4194 } 4195 4196 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4197 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4198 !iwl_mvm_has_new_tx_api(mvm)) { 4199 key->hw_key_idx = STA_KEY_IDX_INVALID; 4200 ret = 0; 4201 break; 4202 } 4203 4204 if (!mvmvif->ap_ibss_active) { 4205 for (i = 0; 4206 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4207 i++) { 4208 if (!mvmvif->ap_early_keys[i]) { 4209 mvmvif->ap_early_keys[i] = key; 4210 break; 4211 } 4212 } 4213 4214 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4215 ret = -ENOSPC; 4216 else 4217 ret = 0; 4218 4219 break; 4220 } 4221 } 4222 4223 /* During FW restart, in order to restore the state as it was, 4224 * don't try to reprogram keys we previously failed for. 4225 */ 4226 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4227 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4228 IWL_DEBUG_MAC80211(mvm, 4229 "skip invalid idx key programming during restart\n"); 4230 ret = 0; 4231 break; 4232 } 4233 4234 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4235 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4236 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4237 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4238 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4239 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4240 struct ieee80211_key_seq seq; 4241 int tid, q; 4242 4243 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4244 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4245 mvm->trans->num_rx_queues), 4246 GFP_KERNEL); 4247 if (!ptk_pn) { 4248 ret = -ENOMEM; 4249 break; 4250 } 4251 4252 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4253 ieee80211_get_key_rx_seq(key, tid, &seq); 4254 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4255 memcpy(ptk_pn->q[q].pn[tid], 4256 seq.ccmp.pn, 4257 IEEE80211_CCMP_PN_LEN); 4258 } 4259 4260 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4261 } 4262 4263 /* in HW restart reuse the index, otherwise request a new one */ 4264 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4265 key_offset = key->hw_key_idx; 4266 else 4267 key_offset = STA_KEY_IDX_INVALID; 4268 4269 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4270 mvmsta->pairwise_cipher = key->cipher; 4271 4272 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4273 sta ? sta->addr : NULL, key->keyidx); 4274 4275 if (sec_key_ver) 4276 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4277 else 4278 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4279 4280 if (ret) { 4281 IWL_WARN(mvm, "set key failed\n"); 4282 key->hw_key_idx = STA_KEY_IDX_INVALID; 4283 if (ptk_pn) { 4284 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4285 kfree(ptk_pn); 4286 } 4287 /* 4288 * can't add key for RX, but we don't need it 4289 * in the device for TX so still return 0, 4290 * unless we have new TX API where we cannot 4291 * put key material into the TX_CMD 4292 */ 4293 if (iwl_mvm_has_new_tx_api(mvm)) 4294 ret = -EOPNOTSUPP; 4295 else 4296 ret = 0; 4297 } 4298 4299 break; 4300 case DISABLE_KEY: 4301 if (vif->type == NL80211_IFTYPE_STATION && 4302 (keyidx == 6 || keyidx == 7)) 4303 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4304 NULL); 4305 4306 ret = -ENOENT; 4307 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4308 if (mvmvif->ap_early_keys[i] == key) { 4309 mvmvif->ap_early_keys[i] = NULL; 4310 ret = 0; 4311 } 4312 } 4313 4314 /* found in pending list - don't do anything else */ 4315 if (ret == 0) 4316 break; 4317 4318 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4319 ret = 0; 4320 break; 4321 } 4322 4323 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4324 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4325 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4326 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4327 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4328 ptk_pn = rcu_dereference_protected( 4329 mvmsta->ptk_pn[keyidx], 4330 lockdep_is_held(&mvm->mutex)); 4331 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4332 if (ptk_pn) 4333 kfree_rcu(ptk_pn, rcu_head); 4334 } 4335 4336 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4337 if (sec_key_ver) 4338 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4339 else 4340 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4341 break; 4342 default: 4343 ret = -EINVAL; 4344 } 4345 4346 return ret; 4347 } 4348 4349 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4350 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4351 struct ieee80211_key_conf *key) 4352 { 4353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4354 int ret; 4355 4356 mutex_lock(&mvm->mutex); 4357 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4358 mutex_unlock(&mvm->mutex); 4359 4360 return ret; 4361 } 4362 4363 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4364 struct ieee80211_vif *vif, 4365 struct ieee80211_key_conf *keyconf, 4366 struct ieee80211_sta *sta, 4367 u32 iv32, u16 *phase1key) 4368 { 4369 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4370 4371 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4372 return; 4373 4374 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4375 } 4376 4377 4378 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4379 struct iwl_rx_packet *pkt, void *data) 4380 { 4381 struct iwl_mvm *mvm = 4382 container_of(notif_wait, struct iwl_mvm, notif_wait); 4383 struct iwl_hs20_roc_res *resp; 4384 int resp_len = iwl_rx_packet_payload_len(pkt); 4385 struct iwl_mvm_time_event_data *te_data = data; 4386 4387 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4388 return true; 4389 4390 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4391 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4392 return true; 4393 } 4394 4395 resp = (void *)pkt->data; 4396 4397 IWL_DEBUG_TE(mvm, 4398 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4399 resp->status, resp->event_unique_id); 4400 4401 te_data->uid = le32_to_cpu(resp->event_unique_id); 4402 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4403 te_data->uid); 4404 4405 spin_lock_bh(&mvm->time_event_lock); 4406 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4407 spin_unlock_bh(&mvm->time_event_lock); 4408 4409 return true; 4410 } 4411 4412 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4413 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4414 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4415 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4416 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4417 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4418 struct ieee80211_channel *channel, 4419 struct ieee80211_vif *vif, 4420 int duration) 4421 { 4422 int res; 4423 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4424 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4425 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4426 struct iwl_notification_wait wait_time_event; 4427 u32 dtim_interval = vif->bss_conf.dtim_period * 4428 vif->bss_conf.beacon_int; 4429 u32 req_dur, delay; 4430 struct iwl_hs20_roc_req aux_roc_req = { 4431 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4432 .id_and_color = 4433 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4434 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4435 }; 4436 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4437 &aux_roc_req.channel_info); 4438 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4439 4440 /* Set the channel info data */ 4441 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4442 iwl_mvm_phy_band_from_nl80211(channel->band), 4443 IWL_PHY_CHANNEL_MODE20, 4444 0); 4445 4446 /* Set the time and duration */ 4447 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4448 4449 delay = AUX_ROC_MIN_DELAY; 4450 req_dur = MSEC_TO_TU(duration); 4451 4452 /* 4453 * If we are associated we want the delay time to be at least one 4454 * dtim interval so that the FW can wait until after the DTIM and 4455 * then start the time event, this will potentially allow us to 4456 * remain off-channel for the max duration. 4457 * Since we want to use almost a whole dtim interval we would also 4458 * like the delay to be for 2-3 dtim intervals, in case there are 4459 * other time events with higher priority. 4460 */ 4461 if (vif->cfg.assoc) { 4462 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4463 /* We cannot remain off-channel longer than the DTIM interval */ 4464 if (dtim_interval <= req_dur) { 4465 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4466 if (req_dur <= AUX_ROC_MIN_DURATION) 4467 req_dur = dtim_interval - 4468 AUX_ROC_MIN_SAFETY_BUFFER; 4469 } 4470 } 4471 4472 tail->duration = cpu_to_le32(req_dur); 4473 tail->apply_time_max_delay = cpu_to_le32(delay); 4474 4475 IWL_DEBUG_TE(mvm, 4476 "ROC: Requesting to remain on channel %u for %ums\n", 4477 channel->hw_value, req_dur); 4478 IWL_DEBUG_TE(mvm, 4479 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4480 duration, delay, dtim_interval); 4481 4482 /* Set the node address */ 4483 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4484 4485 lockdep_assert_held(&mvm->mutex); 4486 4487 spin_lock_bh(&mvm->time_event_lock); 4488 4489 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4490 spin_unlock_bh(&mvm->time_event_lock); 4491 return -EIO; 4492 } 4493 4494 te_data->vif = vif; 4495 te_data->duration = duration; 4496 te_data->id = HOT_SPOT_CMD; 4497 4498 spin_unlock_bh(&mvm->time_event_lock); 4499 4500 /* 4501 * Use a notification wait, which really just processes the 4502 * command response and doesn't wait for anything, in order 4503 * to be able to process the response and get the UID inside 4504 * the RX path. Using CMD_WANT_SKB doesn't work because it 4505 * stores the buffer and then wakes up this thread, by which 4506 * time another notification (that the time event started) 4507 * might already be processed unsuccessfully. 4508 */ 4509 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4510 time_event_response, 4511 ARRAY_SIZE(time_event_response), 4512 iwl_mvm_rx_aux_roc, te_data); 4513 4514 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4515 &aux_roc_req); 4516 4517 if (res) { 4518 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4519 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4520 goto out_clear_te; 4521 } 4522 4523 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4524 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4525 /* should never fail */ 4526 WARN_ON_ONCE(res); 4527 4528 if (res) { 4529 out_clear_te: 4530 spin_lock_bh(&mvm->time_event_lock); 4531 iwl_mvm_te_clear_data(mvm, te_data); 4532 spin_unlock_bh(&mvm->time_event_lock); 4533 } 4534 4535 return res; 4536 } 4537 4538 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4539 { 4540 int ret = 0; 4541 4542 lockdep_assert_held(&mvm->mutex); 4543 4544 if (!fw_has_capa(&mvm->fw->ucode_capa, 4545 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4546 IWL_ERR(mvm, "hotspot not supported\n"); 4547 return -EINVAL; 4548 } 4549 4550 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4551 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4552 WARN(ret, "Failed to allocate aux station"); 4553 } 4554 4555 return ret; 4556 } 4557 4558 static int iwl_mvm_roc_switch_binding(struct iwl_mvm *mvm, 4559 struct ieee80211_vif *vif, 4560 struct iwl_mvm_phy_ctxt *new_phy_ctxt) 4561 { 4562 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4563 int ret = 0; 4564 4565 lockdep_assert_held(&mvm->mutex); 4566 4567 /* Unbind the P2P_DEVICE from the current PHY context, 4568 * and if the PHY context is not used remove it. 4569 */ 4570 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4571 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4572 return ret; 4573 4574 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4575 4576 /* Bind the P2P_DEVICE to the current PHY Context */ 4577 mvmvif->deflink.phy_ctxt = new_phy_ctxt; 4578 4579 ret = iwl_mvm_binding_add_vif(mvm, vif); 4580 WARN(ret, "Failed binding P2P_DEVICE\n"); 4581 return ret; 4582 } 4583 4584 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4585 struct ieee80211_vif *vif, 4586 struct ieee80211_channel *channel, 4587 int duration, 4588 enum ieee80211_roc_type type) 4589 { 4590 static const struct iwl_mvm_roc_ops ops = { 4591 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4592 .switch_phy_ctxt = iwl_mvm_roc_switch_binding, 4593 }; 4594 4595 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4596 } 4597 4598 /* Execute the common part for MLD and non-MLD modes */ 4599 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4600 struct ieee80211_channel *channel, int duration, 4601 enum ieee80211_roc_type type, 4602 const struct iwl_mvm_roc_ops *ops) 4603 { 4604 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4605 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4606 struct cfg80211_chan_def chandef; 4607 struct iwl_mvm_phy_ctxt *phy_ctxt; 4608 bool band_change_removal; 4609 int ret, i; 4610 u32 lmac_id; 4611 4612 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4613 duration, type); 4614 4615 /* 4616 * Flush the done work, just in case it's still pending, so that 4617 * the work it does can complete and we can accept new frames. 4618 */ 4619 flush_work(&mvm->roc_done_wk); 4620 4621 mutex_lock(&mvm->mutex); 4622 4623 switch (vif->type) { 4624 case NL80211_IFTYPE_STATION: 4625 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4626 4627 /* Use aux roc framework (HS20) */ 4628 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4629 if (!ret) 4630 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4631 vif, duration); 4632 goto out_unlock; 4633 case NL80211_IFTYPE_P2P_DEVICE: 4634 /* handle below */ 4635 break; 4636 default: 4637 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4638 ret = -EINVAL; 4639 goto out_unlock; 4640 } 4641 4642 for (i = 0; i < NUM_PHY_CTX; i++) { 4643 phy_ctxt = &mvm->phy_ctxts[i]; 4644 if (phy_ctxt->ref == 0 || mvmvif->deflink.phy_ctxt == phy_ctxt) 4645 continue; 4646 4647 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4648 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4649 if (ret) 4650 goto out_unlock; 4651 4652 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4653 goto schedule_time_event; 4654 } 4655 } 4656 4657 /* Need to update the PHY context only if the ROC channel changed */ 4658 if (channel == mvmvif->deflink.phy_ctxt->channel) 4659 goto schedule_time_event; 4660 4661 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4662 4663 /* 4664 * Check if the remain-on-channel is on a different band and that 4665 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4666 * so, we'll need to release and then re-configure here, since we 4667 * must not remove a PHY context that's part of a binding. 4668 */ 4669 band_change_removal = 4670 fw_has_capa(&mvm->fw->ucode_capa, 4671 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4672 mvmvif->deflink.phy_ctxt->channel->band != chandef.chan->band; 4673 4674 if (mvmvif->deflink.phy_ctxt->ref == 1 && !band_change_removal) { 4675 /* 4676 * Change the PHY context configuration as it is currently 4677 * referenced only by the P2P Device MAC (and we can modify it) 4678 */ 4679 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->deflink.phy_ctxt, 4680 &chandef, 1, 1); 4681 if (ret) 4682 goto out_unlock; 4683 } else { 4684 /* 4685 * The PHY context is shared with other MACs (or we're trying to 4686 * switch bands), so remove the P2P Device from the binding, 4687 * allocate an new PHY context and create a new binding. 4688 */ 4689 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4690 if (!phy_ctxt) { 4691 ret = -ENOSPC; 4692 goto out_unlock; 4693 } 4694 4695 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4696 1, 1); 4697 if (ret) { 4698 IWL_ERR(mvm, "Failed to change PHY context\n"); 4699 goto out_unlock; 4700 } 4701 4702 ret = ops->switch_phy_ctxt(mvm, vif, phy_ctxt); 4703 if (ret) 4704 goto out_unlock; 4705 4706 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4707 } 4708 4709 schedule_time_event: 4710 /* Schedule the time events */ 4711 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4712 4713 out_unlock: 4714 mutex_unlock(&mvm->mutex); 4715 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4716 return ret; 4717 } 4718 4719 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4720 struct ieee80211_vif *vif) 4721 { 4722 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4723 4724 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4725 4726 mutex_lock(&mvm->mutex); 4727 iwl_mvm_stop_roc(mvm, vif); 4728 mutex_unlock(&mvm->mutex); 4729 4730 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4731 return 0; 4732 } 4733 4734 struct iwl_mvm_ftm_responder_iter_data { 4735 bool responder; 4736 struct ieee80211_chanctx_conf *ctx; 4737 }; 4738 4739 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4740 struct ieee80211_vif *vif) 4741 { 4742 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4743 4744 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4745 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4746 data->responder = true; 4747 } 4748 4749 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4750 struct ieee80211_chanctx_conf *ctx) 4751 { 4752 struct iwl_mvm_ftm_responder_iter_data data = { 4753 .responder = false, 4754 .ctx = ctx, 4755 }; 4756 4757 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4758 IEEE80211_IFACE_ITER_NORMAL, 4759 iwl_mvm_ftm_responder_chanctx_iter, 4760 &data); 4761 return data.responder; 4762 } 4763 4764 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4765 struct ieee80211_chanctx_conf *ctx) 4766 { 4767 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4768 struct iwl_mvm_phy_ctxt *phy_ctxt; 4769 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4770 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4771 int ret; 4772 4773 lockdep_assert_held(&mvm->mutex); 4774 4775 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4776 4777 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4778 if (!phy_ctxt) { 4779 ret = -ENOSPC; 4780 goto out; 4781 } 4782 4783 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4784 ctx->rx_chains_static, 4785 ctx->rx_chains_dynamic); 4786 if (ret) { 4787 IWL_ERR(mvm, "Failed to add PHY context\n"); 4788 goto out; 4789 } 4790 4791 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4792 *phy_ctxt_id = phy_ctxt->id; 4793 out: 4794 return ret; 4795 } 4796 4797 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4798 struct ieee80211_chanctx_conf *ctx) 4799 { 4800 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4801 int ret; 4802 4803 mutex_lock(&mvm->mutex); 4804 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4805 mutex_unlock(&mvm->mutex); 4806 4807 return ret; 4808 } 4809 4810 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4811 struct ieee80211_chanctx_conf *ctx) 4812 { 4813 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4814 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4815 4816 lockdep_assert_held(&mvm->mutex); 4817 4818 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4819 } 4820 4821 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4822 struct ieee80211_chanctx_conf *ctx) 4823 { 4824 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4825 4826 mutex_lock(&mvm->mutex); 4827 __iwl_mvm_remove_chanctx(mvm, ctx); 4828 mutex_unlock(&mvm->mutex); 4829 } 4830 4831 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4832 struct ieee80211_chanctx_conf *ctx, u32 changed) 4833 { 4834 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4835 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4836 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4837 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4838 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4839 4840 if (WARN_ONCE((phy_ctxt->ref > 1) && 4841 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4842 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4843 IEEE80211_CHANCTX_CHANGE_RADAR | 4844 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4845 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4846 phy_ctxt->ref, changed)) 4847 return; 4848 4849 mutex_lock(&mvm->mutex); 4850 4851 /* we are only changing the min_width, may be a noop */ 4852 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4853 if (phy_ctxt->width == def->width) 4854 goto out_unlock; 4855 4856 /* we are just toggling between 20_NOHT and 20 */ 4857 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4858 def->width <= NL80211_CHAN_WIDTH_20) 4859 goto out_unlock; 4860 } 4861 4862 iwl_mvm_bt_coex_vif_change(mvm); 4863 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4864 ctx->rx_chains_static, 4865 ctx->rx_chains_dynamic); 4866 4867 out_unlock: 4868 mutex_unlock(&mvm->mutex); 4869 } 4870 4871 /* 4872 * This function executes the common part for MLD and non-MLD modes. 4873 * 4874 * Returns true if we're done assigning the chanctx 4875 * (either on failure or success) 4876 */ 4877 static bool 4878 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4879 struct ieee80211_vif *vif, 4880 struct ieee80211_chanctx_conf *ctx, 4881 bool switching_chanctx, int *ret) 4882 { 4883 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4884 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4885 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4886 4887 lockdep_assert_held(&mvm->mutex); 4888 4889 mvmvif->deflink.phy_ctxt = phy_ctxt; 4890 4891 switch (vif->type) { 4892 case NL80211_IFTYPE_AP: 4893 /* only needed if we're switching chanctx (i.e. during CSA) */ 4894 if (switching_chanctx) { 4895 mvmvif->ap_ibss_active = true; 4896 break; 4897 } 4898 fallthrough; 4899 case NL80211_IFTYPE_ADHOC: 4900 /* 4901 * The AP binding flow is handled as part of the start_ap flow 4902 * (in bss_info_changed), similarly for IBSS. 4903 */ 4904 *ret = 0; 4905 return true; 4906 case NL80211_IFTYPE_STATION: 4907 break; 4908 case NL80211_IFTYPE_MONITOR: 4909 /* always disable PS when a monitor interface is active */ 4910 mvmvif->ps_disabled = true; 4911 break; 4912 default: 4913 *ret = -EINVAL; 4914 return true; 4915 } 4916 return false; 4917 } 4918 4919 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4920 struct ieee80211_vif *vif, 4921 struct ieee80211_bss_conf *link_conf, 4922 struct ieee80211_chanctx_conf *ctx, 4923 bool switching_chanctx) 4924 { 4925 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4926 int ret; 4927 4928 if (WARN_ON(!link_conf)) 4929 return -EINVAL; 4930 4931 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4932 switching_chanctx, &ret)) 4933 goto out; 4934 4935 ret = iwl_mvm_binding_add_vif(mvm, vif); 4936 if (ret) 4937 goto out; 4938 4939 /* 4940 * Power state must be updated before quotas, 4941 * otherwise fw will complain. 4942 */ 4943 iwl_mvm_power_update_mac(mvm); 4944 4945 /* Setting the quota at this stage is only required for monitor 4946 * interfaces. For the other types, the bss_info changed flow 4947 * will handle quota settings. 4948 */ 4949 if (vif->type == NL80211_IFTYPE_MONITOR) { 4950 mvmvif->monitor_active = true; 4951 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4952 if (ret) 4953 goto out_remove_binding; 4954 4955 ret = iwl_mvm_add_snif_sta(mvm, vif); 4956 if (ret) 4957 goto out_remove_binding; 4958 4959 } 4960 4961 /* Handle binding during CSA */ 4962 if (vif->type == NL80211_IFTYPE_AP) { 4963 iwl_mvm_update_quotas(mvm, false, NULL); 4964 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4965 } 4966 4967 if (vif->type == NL80211_IFTYPE_STATION) { 4968 if (!switching_chanctx) { 4969 mvmvif->csa_bcn_pending = false; 4970 goto out; 4971 } 4972 4973 mvmvif->csa_bcn_pending = true; 4974 4975 if (!fw_has_capa(&mvm->fw->ucode_capa, 4976 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4977 u32 duration = 3 * vif->bss_conf.beacon_int; 4978 4979 /* Protect the session to make sure we hear the first 4980 * beacon on the new channel. 4981 */ 4982 iwl_mvm_protect_session(mvm, vif, duration, duration, 4983 vif->bss_conf.beacon_int / 2, 4984 true); 4985 } 4986 4987 iwl_mvm_update_quotas(mvm, false, NULL); 4988 } 4989 4990 goto out; 4991 4992 out_remove_binding: 4993 iwl_mvm_binding_remove_vif(mvm, vif); 4994 iwl_mvm_power_update_mac(mvm); 4995 out: 4996 if (ret) 4997 mvmvif->deflink.phy_ctxt = NULL; 4998 return ret; 4999 } 5000 5001 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5002 struct ieee80211_vif *vif, 5003 struct ieee80211_bss_conf *link_conf, 5004 struct ieee80211_chanctx_conf *ctx) 5005 { 5006 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5007 int ret; 5008 5009 mutex_lock(&mvm->mutex); 5010 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5011 mutex_unlock(&mvm->mutex); 5012 5013 return ret; 5014 } 5015 5016 /* 5017 * This function executes the common part for MLD and non-MLD modes. 5018 * 5019 * Returns if chanctx unassign chanctx is done 5020 * (either on failure or success) 5021 */ 5022 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5023 struct ieee80211_vif *vif, 5024 bool switching_chanctx) 5025 { 5026 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5027 5028 lockdep_assert_held(&mvm->mutex); 5029 iwl_mvm_remove_time_event(mvm, mvmvif, 5030 &mvmvif->time_event_data); 5031 5032 switch (vif->type) { 5033 case NL80211_IFTYPE_ADHOC: 5034 return true; 5035 case NL80211_IFTYPE_MONITOR: 5036 mvmvif->monitor_active = false; 5037 mvmvif->ps_disabled = false; 5038 break; 5039 case NL80211_IFTYPE_AP: 5040 /* This part is triggered only during CSA */ 5041 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5042 return true; 5043 5044 mvmvif->csa_countdown = false; 5045 5046 /* Set CS bit on all the stations */ 5047 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5048 5049 /* Save blocked iface, the timeout is set on the next beacon */ 5050 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5051 5052 mvmvif->ap_ibss_active = false; 5053 break; 5054 default: 5055 break; 5056 } 5057 return false; 5058 } 5059 5060 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5061 struct ieee80211_vif *vif, 5062 struct ieee80211_bss_conf *link_conf, 5063 struct ieee80211_chanctx_conf *ctx, 5064 bool switching_chanctx) 5065 { 5066 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5067 struct ieee80211_vif *disabled_vif = NULL; 5068 5069 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5070 goto out; 5071 5072 if (vif->type == NL80211_IFTYPE_MONITOR) 5073 iwl_mvm_rm_snif_sta(mvm, vif); 5074 5075 5076 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5077 disabled_vif = vif; 5078 if (!fw_has_capa(&mvm->fw->ucode_capa, 5079 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5080 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5081 } 5082 5083 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5084 iwl_mvm_binding_remove_vif(mvm, vif); 5085 5086 out: 5087 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5088 switching_chanctx) 5089 return; 5090 mvmvif->deflink.phy_ctxt = NULL; 5091 iwl_mvm_power_update_mac(mvm); 5092 } 5093 5094 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5095 struct ieee80211_vif *vif, 5096 struct ieee80211_bss_conf *link_conf, 5097 struct ieee80211_chanctx_conf *ctx) 5098 { 5099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5100 5101 mutex_lock(&mvm->mutex); 5102 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5103 mutex_unlock(&mvm->mutex); 5104 } 5105 5106 static int 5107 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5108 struct ieee80211_vif_chanctx_switch *vifs, 5109 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5110 { 5111 int ret; 5112 5113 mutex_lock(&mvm->mutex); 5114 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5115 vifs[0].old_ctx, true); 5116 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5117 5118 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5119 if (ret) { 5120 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5121 goto out_reassign; 5122 } 5123 5124 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5125 vifs[0].new_ctx, true); 5126 if (ret) { 5127 IWL_ERR(mvm, 5128 "failed to assign new_ctx during channel switch\n"); 5129 goto out_remove; 5130 } 5131 5132 /* we don't support TDLS during DCM - can be caused by channel switch */ 5133 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5134 iwl_mvm_teardown_tdls_peers(mvm); 5135 5136 goto out; 5137 5138 out_remove: 5139 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5140 5141 out_reassign: 5142 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5143 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5144 goto out_restart; 5145 } 5146 5147 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5148 vifs[0].old_ctx, true)) { 5149 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5150 goto out_restart; 5151 } 5152 5153 goto out; 5154 5155 out_restart: 5156 /* things keep failing, better restart the hw */ 5157 iwl_mvm_nic_restart(mvm, false); 5158 5159 out: 5160 mutex_unlock(&mvm->mutex); 5161 5162 return ret; 5163 } 5164 5165 static int 5166 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5167 struct ieee80211_vif_chanctx_switch *vifs, 5168 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5169 { 5170 int ret; 5171 5172 mutex_lock(&mvm->mutex); 5173 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5174 vifs[0].old_ctx, true); 5175 5176 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5177 vifs[0].new_ctx, true); 5178 if (ret) { 5179 IWL_ERR(mvm, 5180 "failed to assign new_ctx during channel switch\n"); 5181 goto out_reassign; 5182 } 5183 5184 goto out; 5185 5186 out_reassign: 5187 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5188 vifs[0].old_ctx, true)) { 5189 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5190 goto out_restart; 5191 } 5192 5193 goto out; 5194 5195 out_restart: 5196 /* things keep failing, better restart the hw */ 5197 iwl_mvm_nic_restart(mvm, false); 5198 5199 out: 5200 mutex_unlock(&mvm->mutex); 5201 5202 return ret; 5203 } 5204 5205 /* Execute the common part for both MLD and non-MLD modes */ 5206 int 5207 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5208 struct ieee80211_vif_chanctx_switch *vifs, 5209 int n_vifs, 5210 enum ieee80211_chanctx_switch_mode mode, 5211 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5212 { 5213 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5214 int ret; 5215 5216 /* we only support a single-vif right now */ 5217 if (n_vifs > 1) 5218 return -EOPNOTSUPP; 5219 5220 switch (mode) { 5221 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5222 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5223 break; 5224 case CHANCTX_SWMODE_REASSIGN_VIF: 5225 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5226 break; 5227 default: 5228 ret = -EOPNOTSUPP; 5229 break; 5230 } 5231 5232 return ret; 5233 } 5234 5235 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5236 struct ieee80211_vif_chanctx_switch *vifs, 5237 int n_vifs, 5238 enum ieee80211_chanctx_switch_mode mode) 5239 { 5240 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5241 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5242 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5243 }; 5244 5245 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5246 } 5247 5248 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5249 { 5250 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5251 5252 return mvm->ibss_manager; 5253 } 5254 5255 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5256 bool set) 5257 { 5258 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5259 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5260 5261 if (!mvm_sta || !mvm_sta->vif) { 5262 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5263 return -EINVAL; 5264 } 5265 5266 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5267 &mvm_sta->vif->bss_conf); 5268 } 5269 5270 #ifdef CONFIG_NL80211_TESTMODE 5271 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5272 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5273 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5274 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5275 }; 5276 5277 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5278 struct ieee80211_vif *vif, 5279 void *data, int len) 5280 { 5281 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5282 int err; 5283 u32 noa_duration; 5284 5285 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5286 iwl_mvm_tm_policy, NULL); 5287 if (err) 5288 return err; 5289 5290 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5291 return -EINVAL; 5292 5293 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5294 case IWL_MVM_TM_CMD_SET_NOA: 5295 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5296 !vif->bss_conf.enable_beacon || 5297 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5298 return -EINVAL; 5299 5300 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5301 if (noa_duration >= vif->bss_conf.beacon_int) 5302 return -EINVAL; 5303 5304 mvm->noa_duration = noa_duration; 5305 mvm->noa_vif = vif; 5306 5307 return iwl_mvm_update_quotas(mvm, true, NULL); 5308 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5309 /* must be associated client vif - ignore authorized */ 5310 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5311 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5312 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5313 return -EINVAL; 5314 5315 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5316 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 5317 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5318 } 5319 5320 return -EOPNOTSUPP; 5321 } 5322 5323 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5324 struct ieee80211_vif *vif, 5325 void *data, int len) 5326 { 5327 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5328 int err; 5329 5330 mutex_lock(&mvm->mutex); 5331 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5332 mutex_unlock(&mvm->mutex); 5333 5334 return err; 5335 } 5336 #endif 5337 5338 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5339 struct ieee80211_channel_switch *chsw) 5340 { 5341 /* By implementing this operation, we prevent mac80211 from 5342 * starting its own channel switch timer, so that we can call 5343 * ieee80211_chswitch_done() ourselves at the right time 5344 * (which is when the absence time event starts). 5345 */ 5346 5347 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5348 "dummy channel switch op\n"); 5349 } 5350 5351 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5352 struct ieee80211_vif *vif, 5353 struct ieee80211_channel_switch *chsw) 5354 { 5355 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5356 struct iwl_chan_switch_te_cmd cmd = { 5357 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5358 mvmvif->color)), 5359 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5360 .tsf = cpu_to_le32(chsw->timestamp), 5361 .cs_count = chsw->count, 5362 .cs_mode = chsw->block_tx, 5363 }; 5364 5365 lockdep_assert_held(&mvm->mutex); 5366 5367 if (chsw->delay) 5368 cmd.cs_delayed_bcn_count = 5369 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5370 5371 return iwl_mvm_send_cmd_pdu(mvm, 5372 WIDE_ID(MAC_CONF_GROUP, 5373 CHANNEL_SWITCH_TIME_EVENT_CMD), 5374 0, sizeof(cmd), &cmd); 5375 } 5376 5377 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5378 struct ieee80211_vif *vif, 5379 struct ieee80211_channel_switch *chsw) 5380 { 5381 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5382 u32 apply_time; 5383 5384 /* Schedule the time event to a bit before beacon 1, 5385 * to make sure we're in the new channel when the 5386 * GO/AP arrives. In case count <= 1 immediately schedule the 5387 * TE (this might result with some packet loss or connection 5388 * loss). 5389 */ 5390 if (chsw->count <= 1) 5391 apply_time = 0; 5392 else 5393 apply_time = chsw->device_timestamp + 5394 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5395 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5396 5397 if (chsw->block_tx) 5398 iwl_mvm_csa_client_absent(mvm, vif); 5399 5400 if (mvmvif->bf_data.bf_enabled) { 5401 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 5402 5403 if (ret) 5404 return ret; 5405 } 5406 5407 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5408 apply_time); 5409 5410 return 0; 5411 } 5412 5413 #define IWL_MAX_CSA_BLOCK_TX 1500 5414 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5415 struct ieee80211_vif *vif, 5416 struct ieee80211_channel_switch *chsw) 5417 { 5418 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5419 struct ieee80211_vif *csa_vif; 5420 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5421 int ret; 5422 5423 mutex_lock(&mvm->mutex); 5424 5425 mvmvif->csa_failed = false; 5426 5427 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5428 chsw->chandef.center_freq1); 5429 5430 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5431 ieee80211_vif_to_wdev(vif), 5432 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5433 5434 switch (vif->type) { 5435 case NL80211_IFTYPE_AP: 5436 csa_vif = 5437 rcu_dereference_protected(mvm->csa_vif, 5438 lockdep_is_held(&mvm->mutex)); 5439 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5440 "Another CSA is already in progress")) { 5441 ret = -EBUSY; 5442 goto out_unlock; 5443 } 5444 5445 /* we still didn't unblock tx. prevent new CS meanwhile */ 5446 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5447 lockdep_is_held(&mvm->mutex))) { 5448 ret = -EBUSY; 5449 goto out_unlock; 5450 } 5451 5452 rcu_assign_pointer(mvm->csa_vif, vif); 5453 5454 if (WARN_ONCE(mvmvif->csa_countdown, 5455 "Previous CSA countdown didn't complete")) { 5456 ret = -EBUSY; 5457 goto out_unlock; 5458 } 5459 5460 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5461 5462 break; 5463 case NL80211_IFTYPE_STATION: 5464 /* 5465 * In the new flow FW is in charge of timing the switch so there 5466 * is no need for all of this 5467 */ 5468 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5469 CHANNEL_SWITCH_ERROR_NOTIF, 5470 0)) 5471 break; 5472 5473 /* 5474 * We haven't configured the firmware to be associated yet since 5475 * we don't know the dtim period. In this case, the firmware can't 5476 * track the beacons. 5477 */ 5478 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5479 ret = -EBUSY; 5480 goto out_unlock; 5481 } 5482 5483 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 5484 schedule_delayed_work(&mvmvif->csa_work, 0); 5485 5486 if (chsw->block_tx) { 5487 /* 5488 * In case of undetermined / long time with immediate 5489 * quiet monitor status to gracefully disconnect 5490 */ 5491 if (!chsw->count || 5492 chsw->count * vif->bss_conf.beacon_int > 5493 IWL_MAX_CSA_BLOCK_TX) 5494 schedule_delayed_work(&mvmvif->csa_work, 5495 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5496 } 5497 5498 if (!fw_has_capa(&mvm->fw->ucode_capa, 5499 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5500 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5501 if (ret) 5502 goto out_unlock; 5503 } else { 5504 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5505 } 5506 5507 mvmvif->csa_count = chsw->count; 5508 mvmvif->csa_misbehave = false; 5509 break; 5510 default: 5511 break; 5512 } 5513 5514 mvmvif->ps_disabled = true; 5515 5516 ret = iwl_mvm_power_update_ps(mvm); 5517 if (ret) 5518 goto out_unlock; 5519 5520 /* we won't be on this channel any longer */ 5521 iwl_mvm_teardown_tdls_peers(mvm); 5522 5523 out_unlock: 5524 mutex_unlock(&mvm->mutex); 5525 5526 return ret; 5527 } 5528 5529 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5530 struct ieee80211_vif *vif, 5531 struct ieee80211_channel_switch *chsw) 5532 { 5533 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5534 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5535 struct iwl_chan_switch_te_cmd cmd = { 5536 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5537 mvmvif->color)), 5538 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5539 .tsf = cpu_to_le32(chsw->timestamp), 5540 .cs_count = chsw->count, 5541 .cs_mode = chsw->block_tx, 5542 }; 5543 5544 /* 5545 * In the new flow FW is in charge of timing the switch so there is no 5546 * need for all of this 5547 */ 5548 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5549 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5550 return; 5551 5552 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5553 return; 5554 5555 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5556 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5557 5558 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5559 if (mvmvif->csa_misbehave) { 5560 /* Second time, give up on this AP*/ 5561 iwl_mvm_abort_channel_switch(hw, vif); 5562 ieee80211_chswitch_done(vif, false); 5563 mvmvif->csa_misbehave = false; 5564 return; 5565 } 5566 mvmvif->csa_misbehave = true; 5567 } 5568 mvmvif->csa_count = chsw->count; 5569 5570 mutex_lock(&mvm->mutex); 5571 if (mvmvif->csa_failed) 5572 goto out_unlock; 5573 5574 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5575 WIDE_ID(MAC_CONF_GROUP, 5576 CHANNEL_SWITCH_TIME_EVENT_CMD), 5577 0, sizeof(cmd), &cmd)); 5578 out_unlock: 5579 mutex_unlock(&mvm->mutex); 5580 } 5581 5582 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5583 { 5584 int i; 5585 5586 if (!iwl_mvm_has_new_tx_api(mvm)) { 5587 if (drop) { 5588 mutex_lock(&mvm->mutex); 5589 iwl_mvm_flush_tx_path(mvm, 5590 iwl_mvm_flushable_queues(mvm) & queues); 5591 mutex_unlock(&mvm->mutex); 5592 } else { 5593 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5594 } 5595 return; 5596 } 5597 5598 mutex_lock(&mvm->mutex); 5599 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5600 struct ieee80211_sta *sta; 5601 5602 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5603 lockdep_is_held(&mvm->mutex)); 5604 if (IS_ERR_OR_NULL(sta)) 5605 continue; 5606 5607 if (drop) 5608 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5609 else 5610 iwl_mvm_wait_sta_queues_empty(mvm, 5611 iwl_mvm_sta_from_mac80211(sta)); 5612 } 5613 mutex_unlock(&mvm->mutex); 5614 } 5615 5616 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5617 u32 queues, bool drop) 5618 { 5619 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5620 struct iwl_mvm_vif *mvmvif; 5621 struct iwl_mvm_sta *mvmsta; 5622 struct ieee80211_sta *sta; 5623 bool ap_sta_done = false; 5624 int i; 5625 u32 msk = 0; 5626 5627 if (!vif) { 5628 iwl_mvm_flush_no_vif(mvm, queues, drop); 5629 return; 5630 } 5631 5632 if (vif->type != NL80211_IFTYPE_STATION) 5633 return; 5634 5635 /* Make sure we're done with the deferred traffic before flushing */ 5636 flush_work(&mvm->add_stream_wk); 5637 5638 mutex_lock(&mvm->mutex); 5639 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5640 5641 /* flush the AP-station and all TDLS peers */ 5642 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5643 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5644 lockdep_is_held(&mvm->mutex)); 5645 if (IS_ERR_OR_NULL(sta)) 5646 continue; 5647 5648 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5649 if (mvmsta->vif != vif) 5650 continue; 5651 5652 if (sta == mvmvif->ap_sta) { 5653 if (ap_sta_done) 5654 continue; 5655 ap_sta_done = true; 5656 } 5657 5658 /* make sure only TDLS peers or the AP are flushed */ 5659 WARN_ON_ONCE(sta != mvmvif->ap_sta && !sta->tdls); 5660 5661 if (drop) { 5662 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5663 IWL_ERR(mvm, "flush request fail\n"); 5664 } else { 5665 if (iwl_mvm_has_new_tx_api(mvm)) 5666 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5667 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5668 msk |= mvmsta->tfd_queue_msk; 5669 } 5670 } 5671 5672 mutex_unlock(&mvm->mutex); 5673 5674 /* this can take a while, and we may need/want other operations 5675 * to succeed while doing this, so do it without the mutex held 5676 */ 5677 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5678 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5679 } 5680 5681 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5682 struct ieee80211_sta *sta) 5683 { 5684 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5685 int i; 5686 5687 mutex_lock(&mvm->mutex); 5688 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5689 struct iwl_mvm_sta *mvmsta; 5690 struct ieee80211_sta *tmp; 5691 5692 tmp = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5693 lockdep_is_held(&mvm->mutex)); 5694 if (tmp != sta) 5695 continue; 5696 5697 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5698 5699 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5700 IWL_ERR(mvm, "flush request fail\n"); 5701 } 5702 mutex_unlock(&mvm->mutex); 5703 } 5704 5705 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5706 struct survey_info *survey) 5707 { 5708 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5709 int ret; 5710 5711 memset(survey, 0, sizeof(*survey)); 5712 5713 /* only support global statistics right now */ 5714 if (idx != 0) 5715 return -ENOENT; 5716 5717 if (!fw_has_capa(&mvm->fw->ucode_capa, 5718 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5719 return -ENOENT; 5720 5721 mutex_lock(&mvm->mutex); 5722 5723 if (iwl_mvm_firmware_running(mvm)) { 5724 ret = iwl_mvm_request_statistics(mvm, false); 5725 if (ret) 5726 goto out; 5727 } 5728 5729 survey->filled = SURVEY_INFO_TIME | 5730 SURVEY_INFO_TIME_RX | 5731 SURVEY_INFO_TIME_TX | 5732 SURVEY_INFO_TIME_SCAN; 5733 survey->time = mvm->accu_radio_stats.on_time_rf + 5734 mvm->radio_stats.on_time_rf; 5735 do_div(survey->time, USEC_PER_MSEC); 5736 5737 survey->time_rx = mvm->accu_radio_stats.rx_time + 5738 mvm->radio_stats.rx_time; 5739 do_div(survey->time_rx, USEC_PER_MSEC); 5740 5741 survey->time_tx = mvm->accu_radio_stats.tx_time + 5742 mvm->radio_stats.tx_time; 5743 do_div(survey->time_tx, USEC_PER_MSEC); 5744 5745 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5746 mvm->radio_stats.on_time_scan; 5747 do_div(survey->time_scan, USEC_PER_MSEC); 5748 5749 ret = 0; 5750 out: 5751 mutex_unlock(&mvm->mutex); 5752 return ret; 5753 } 5754 5755 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5756 { 5757 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5758 u32 gi_ltf; 5759 5760 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5761 case RATE_MCS_CHAN_WIDTH_20: 5762 rinfo->bw = RATE_INFO_BW_20; 5763 break; 5764 case RATE_MCS_CHAN_WIDTH_40: 5765 rinfo->bw = RATE_INFO_BW_40; 5766 break; 5767 case RATE_MCS_CHAN_WIDTH_80: 5768 rinfo->bw = RATE_INFO_BW_80; 5769 break; 5770 case RATE_MCS_CHAN_WIDTH_160: 5771 rinfo->bw = RATE_INFO_BW_160; 5772 break; 5773 case RATE_MCS_CHAN_WIDTH_320: 5774 rinfo->bw = RATE_INFO_BW_320; 5775 break; 5776 } 5777 5778 if (format == RATE_MCS_CCK_MSK || 5779 format == RATE_MCS_LEGACY_OFDM_MSK) { 5780 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5781 5782 /* add the offset needed to get to the legacy ofdm indices */ 5783 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5784 rate += IWL_FIRST_OFDM_RATE; 5785 5786 switch (rate) { 5787 case IWL_RATE_1M_INDEX: 5788 rinfo->legacy = 10; 5789 break; 5790 case IWL_RATE_2M_INDEX: 5791 rinfo->legacy = 20; 5792 break; 5793 case IWL_RATE_5M_INDEX: 5794 rinfo->legacy = 55; 5795 break; 5796 case IWL_RATE_11M_INDEX: 5797 rinfo->legacy = 110; 5798 break; 5799 case IWL_RATE_6M_INDEX: 5800 rinfo->legacy = 60; 5801 break; 5802 case IWL_RATE_9M_INDEX: 5803 rinfo->legacy = 90; 5804 break; 5805 case IWL_RATE_12M_INDEX: 5806 rinfo->legacy = 120; 5807 break; 5808 case IWL_RATE_18M_INDEX: 5809 rinfo->legacy = 180; 5810 break; 5811 case IWL_RATE_24M_INDEX: 5812 rinfo->legacy = 240; 5813 break; 5814 case IWL_RATE_36M_INDEX: 5815 rinfo->legacy = 360; 5816 break; 5817 case IWL_RATE_48M_INDEX: 5818 rinfo->legacy = 480; 5819 break; 5820 case IWL_RATE_54M_INDEX: 5821 rinfo->legacy = 540; 5822 } 5823 return; 5824 } 5825 5826 rinfo->nss = u32_get_bits(rate_n_flags, 5827 RATE_MCS_NSS_MSK) + 1; 5828 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5829 RATE_HT_MCS_INDEX(rate_n_flags) : 5830 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5831 5832 if (rate_n_flags & RATE_MCS_SGI_MSK) 5833 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5834 5835 switch (format) { 5836 case RATE_MCS_EHT_MSK: 5837 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5838 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5839 break; 5840 case RATE_MCS_HE_MSK: 5841 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5842 5843 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5844 5845 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5846 rinfo->bw = RATE_INFO_BW_HE_RU; 5847 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5848 } 5849 5850 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5851 case RATE_MCS_HE_TYPE_SU: 5852 case RATE_MCS_HE_TYPE_EXT_SU: 5853 if (gi_ltf == 0 || gi_ltf == 1) 5854 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5855 else if (gi_ltf == 2) 5856 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5857 else if (gi_ltf == 3) 5858 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5859 else 5860 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5861 break; 5862 case RATE_MCS_HE_TYPE_MU: 5863 if (gi_ltf == 0 || gi_ltf == 1) 5864 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5865 else if (gi_ltf == 2) 5866 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5867 else 5868 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5869 break; 5870 case RATE_MCS_HE_TYPE_TRIG: 5871 if (gi_ltf == 0 || gi_ltf == 1) 5872 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5873 else 5874 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5875 break; 5876 } 5877 5878 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5879 rinfo->he_dcm = 1; 5880 break; 5881 case RATE_MCS_HT_MSK: 5882 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5883 break; 5884 case RATE_MCS_VHT_MSK: 5885 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5886 break; 5887 } 5888 } 5889 5890 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5891 struct ieee80211_vif *vif, 5892 struct ieee80211_sta *sta, 5893 struct station_info *sinfo) 5894 { 5895 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5896 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5897 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5898 5899 if (mvmsta->deflink.avg_energy) { 5900 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5901 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5902 } 5903 5904 if (iwl_mvm_has_tlc_offload(mvm)) { 5905 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5906 5907 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5908 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5909 } 5910 5911 /* if beacon filtering isn't on mac80211 does it anyway */ 5912 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5913 return; 5914 5915 if (!vif->cfg.assoc) 5916 return; 5917 5918 mutex_lock(&mvm->mutex); 5919 5920 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5921 goto unlock; 5922 5923 if (iwl_mvm_request_statistics(mvm, false)) 5924 goto unlock; 5925 5926 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons + 5927 mvmvif->deflink.beacon_stats.accu_num_beacons; 5928 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5929 if (mvmvif->deflink.beacon_stats.avg_signal) { 5930 /* firmware only reports a value after RXing a few beacons */ 5931 sinfo->rx_beacon_signal_avg = 5932 mvmvif->deflink.beacon_stats.avg_signal; 5933 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5934 } 5935 unlock: 5936 mutex_unlock(&mvm->mutex); 5937 } 5938 5939 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5940 struct ieee80211_vif *vif, 5941 const struct ieee80211_mlme_event *mlme) 5942 { 5943 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5944 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5945 iwl_dbg_tlv_time_point(&mvm->fwrt, 5946 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5947 NULL); 5948 return; 5949 } 5950 5951 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5952 iwl_dbg_tlv_time_point(&mvm->fwrt, 5953 IWL_FW_INI_TIME_POINT_DEASSOC, 5954 NULL); 5955 return; 5956 } 5957 } 5958 5959 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5960 struct ieee80211_vif *vif, 5961 const struct ieee80211_event *event) 5962 { 5963 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5964 do { \ 5965 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5966 break; \ 5967 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5968 } while (0) 5969 5970 struct iwl_fw_dbg_trigger_tlv *trig; 5971 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5972 5973 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5974 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5975 return; 5976 } 5977 5978 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5979 FW_DBG_TRIGGER_MLME); 5980 if (!trig) 5981 return; 5982 5983 trig_mlme = (void *)trig->data; 5984 5985 if (event->u.mlme.data == ASSOC_EVENT) { 5986 if (event->u.mlme.status == MLME_DENIED) 5987 CHECK_MLME_TRIGGER(stop_assoc_denied, 5988 "DENIED ASSOC: reason %d", 5989 event->u.mlme.reason); 5990 else if (event->u.mlme.status == MLME_TIMEOUT) 5991 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5992 "ASSOC TIMEOUT"); 5993 } else if (event->u.mlme.data == AUTH_EVENT) { 5994 if (event->u.mlme.status == MLME_DENIED) 5995 CHECK_MLME_TRIGGER(stop_auth_denied, 5996 "DENIED AUTH: reason %d", 5997 event->u.mlme.reason); 5998 else if (event->u.mlme.status == MLME_TIMEOUT) 5999 CHECK_MLME_TRIGGER(stop_auth_timeout, 6000 "AUTH TIMEOUT"); 6001 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6002 CHECK_MLME_TRIGGER(stop_rx_deauth, 6003 "DEAUTH RX %d", event->u.mlme.reason); 6004 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6005 CHECK_MLME_TRIGGER(stop_tx_deauth, 6006 "DEAUTH TX %d", event->u.mlme.reason); 6007 } 6008 #undef CHECK_MLME_TRIGGER 6009 } 6010 6011 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6012 struct ieee80211_vif *vif, 6013 const struct ieee80211_event *event) 6014 { 6015 struct iwl_fw_dbg_trigger_tlv *trig; 6016 struct iwl_fw_dbg_trigger_ba *ba_trig; 6017 6018 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6019 FW_DBG_TRIGGER_BA); 6020 if (!trig) 6021 return; 6022 6023 ba_trig = (void *)trig->data; 6024 6025 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6026 return; 6027 6028 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6029 "BAR received from %pM, tid %d, ssn %d", 6030 event->u.ba.sta->addr, event->u.ba.tid, 6031 event->u.ba.ssn); 6032 } 6033 6034 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6035 struct ieee80211_vif *vif, 6036 const struct ieee80211_event *event) 6037 { 6038 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6039 6040 switch (event->type) { 6041 case MLME_EVENT: 6042 iwl_mvm_event_mlme_callback(mvm, vif, event); 6043 break; 6044 case BAR_RX_EVENT: 6045 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6046 break; 6047 case BA_FRAME_TIMEOUT: 6048 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6049 event->u.ba.tid); 6050 break; 6051 default: 6052 break; 6053 } 6054 } 6055 6056 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6057 enum iwl_mvm_rxq_notif_type type, 6058 bool sync, 6059 const void *data, u32 size) 6060 { 6061 struct { 6062 struct iwl_rxq_sync_cmd cmd; 6063 struct iwl_mvm_internal_rxq_notif notif; 6064 } __packed cmd = { 6065 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6066 .cmd.count = 6067 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6068 size), 6069 .notif.type = type, 6070 .notif.sync = sync, 6071 }; 6072 struct iwl_host_cmd hcmd = { 6073 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6074 .data[0] = &cmd, 6075 .len[0] = sizeof(cmd), 6076 .data[1] = data, 6077 .len[1] = size, 6078 .flags = sync ? 0 : CMD_ASYNC, 6079 }; 6080 int ret; 6081 6082 /* size must be a multiple of DWORD */ 6083 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6084 return; 6085 6086 if (!iwl_mvm_has_new_rx_api(mvm)) 6087 return; 6088 6089 if (sync) { 6090 cmd.notif.cookie = mvm->queue_sync_cookie; 6091 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6092 } 6093 6094 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6095 if (ret) { 6096 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6097 goto out; 6098 } 6099 6100 if (sync) { 6101 lockdep_assert_held(&mvm->mutex); 6102 ret = wait_event_timeout(mvm->rx_sync_waitq, 6103 READ_ONCE(mvm->queue_sync_state) == 0 || 6104 iwl_mvm_is_radio_killed(mvm), 6105 HZ); 6106 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 6107 "queue sync: failed to sync, state is 0x%lx\n", 6108 mvm->queue_sync_state); 6109 } 6110 6111 out: 6112 if (sync) { 6113 mvm->queue_sync_state = 0; 6114 mvm->queue_sync_cookie++; 6115 } 6116 } 6117 6118 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6119 { 6120 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6121 6122 mutex_lock(&mvm->mutex); 6123 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6124 mutex_unlock(&mvm->mutex); 6125 } 6126 6127 int 6128 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6129 struct ieee80211_vif *vif, 6130 struct cfg80211_ftm_responder_stats *stats) 6131 { 6132 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6133 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6134 6135 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6136 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6137 return -EINVAL; 6138 6139 mutex_lock(&mvm->mutex); 6140 *stats = mvm->ftm_resp_stats; 6141 mutex_unlock(&mvm->mutex); 6142 6143 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6144 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6145 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6146 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6147 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6148 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6149 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6150 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6151 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6152 6153 return 0; 6154 } 6155 6156 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6157 struct cfg80211_pmsr_request *request) 6158 { 6159 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6160 int ret; 6161 6162 mutex_lock(&mvm->mutex); 6163 ret = iwl_mvm_ftm_start(mvm, vif, request); 6164 mutex_unlock(&mvm->mutex); 6165 6166 return ret; 6167 } 6168 6169 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6170 struct cfg80211_pmsr_request *request) 6171 { 6172 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6173 6174 mutex_lock(&mvm->mutex); 6175 iwl_mvm_ftm_abort(mvm, request); 6176 mutex_unlock(&mvm->mutex); 6177 } 6178 6179 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6180 { 6181 u8 protocol = ip_hdr(skb)->protocol; 6182 6183 if (!IS_ENABLED(CONFIG_INET)) 6184 return false; 6185 6186 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6187 } 6188 6189 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6190 struct sk_buff *head, 6191 struct sk_buff *skb) 6192 { 6193 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6194 6195 /* For now don't aggregate IPv6 in AMSDU */ 6196 if (skb->protocol != htons(ETH_P_IP)) 6197 return false; 6198 6199 if (!iwl_mvm_is_csum_supported(mvm)) 6200 return true; 6201 6202 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6203 } 6204 6205 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6206 struct ieee80211_vif *vif, 6207 struct cfg80211_set_hw_timestamp *hwts) 6208 { 6209 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6210 u32 protocols = 0; 6211 int ret; 6212 6213 /* HW timestamping is only supported for a specific station */ 6214 if (!hwts->macaddr) 6215 return -EOPNOTSUPP; 6216 6217 if (hwts->enable) 6218 protocols = 6219 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6220 6221 mutex_lock(&mvm->mutex); 6222 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6223 mutex_unlock(&mvm->mutex); 6224 6225 return ret; 6226 } 6227 6228 const struct ieee80211_ops iwl_mvm_hw_ops = { 6229 .tx = iwl_mvm_mac_tx, 6230 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6231 .ampdu_action = iwl_mvm_mac_ampdu_action, 6232 .get_antenna = iwl_mvm_op_get_antenna, 6233 .start = iwl_mvm_mac_start, 6234 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6235 .stop = iwl_mvm_mac_stop, 6236 .add_interface = iwl_mvm_mac_add_interface, 6237 .remove_interface = iwl_mvm_mac_remove_interface, 6238 .config = iwl_mvm_mac_config, 6239 .prepare_multicast = iwl_mvm_prepare_multicast, 6240 .configure_filter = iwl_mvm_configure_filter, 6241 .config_iface_filter = iwl_mvm_config_iface_filter, 6242 .bss_info_changed = iwl_mvm_bss_info_changed, 6243 .hw_scan = iwl_mvm_mac_hw_scan, 6244 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6245 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6246 .sta_state = iwl_mvm_mac_sta_state, 6247 .sta_notify = iwl_mvm_mac_sta_notify, 6248 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6249 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6250 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6251 .sta_rc_update = iwl_mvm_sta_rc_update, 6252 .conf_tx = iwl_mvm_mac_conf_tx, 6253 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6254 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6255 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6256 .flush = iwl_mvm_mac_flush, 6257 .flush_sta = iwl_mvm_mac_flush_sta, 6258 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6259 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6260 .set_key = iwl_mvm_mac_set_key, 6261 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6262 .remain_on_channel = iwl_mvm_roc, 6263 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6264 .add_chanctx = iwl_mvm_add_chanctx, 6265 .remove_chanctx = iwl_mvm_remove_chanctx, 6266 .change_chanctx = iwl_mvm_change_chanctx, 6267 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6268 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6269 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6270 6271 .start_ap = iwl_mvm_start_ap, 6272 .stop_ap = iwl_mvm_stop_ap, 6273 .join_ibss = iwl_mvm_start_ibss, 6274 .leave_ibss = iwl_mvm_stop_ibss, 6275 6276 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6277 6278 .set_tim = iwl_mvm_set_tim, 6279 6280 .channel_switch = iwl_mvm_channel_switch, 6281 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6282 .post_channel_switch = iwl_mvm_post_channel_switch, 6283 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6284 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6285 6286 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6287 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6288 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6289 6290 .event_callback = iwl_mvm_mac_event_callback, 6291 6292 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6293 6294 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6295 6296 #ifdef CONFIG_PM_SLEEP 6297 /* look at d3.c */ 6298 .suspend = iwl_mvm_suspend, 6299 .resume = iwl_mvm_resume, 6300 .set_wakeup = iwl_mvm_set_wakeup, 6301 .set_rekey_data = iwl_mvm_set_rekey_data, 6302 #if IS_ENABLED(CONFIG_IPV6) 6303 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6304 #endif 6305 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6306 #endif 6307 .get_survey = iwl_mvm_mac_get_survey, 6308 .sta_statistics = iwl_mvm_mac_sta_statistics, 6309 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6310 .start_pmsr = iwl_mvm_start_pmsr, 6311 .abort_pmsr = iwl_mvm_abort_pmsr, 6312 6313 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6314 #ifdef CONFIG_IWLWIFI_DEBUGFS 6315 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6316 #endif 6317 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6318 }; 6319