1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2025 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-nvm-utils.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 #define IWL_MVM_LIMITS(ap) \ 34 { \ 35 .max = 1, \ 36 .types = BIT(NL80211_IFTYPE_STATION), \ 37 }, \ 38 { \ 39 .max = 1, \ 40 .types = ap | \ 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | \ 42 BIT(NL80211_IFTYPE_P2P_GO), \ 43 }, \ 44 { \ 45 .max = 1, \ 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), \ 47 } 48 49 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 50 IWL_MVM_LIMITS(0) 51 }; 52 53 static const struct ieee80211_iface_limit iwl_mvm_limits_ap[] = { 54 IWL_MVM_LIMITS(BIT(NL80211_IFTYPE_AP)) 55 }; 56 57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 58 { 59 .num_different_channels = 2, 60 .max_interfaces = 3, 61 .limits = iwl_mvm_limits, 62 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 63 }, 64 { 65 .num_different_channels = 1, 66 .max_interfaces = 3, 67 .limits = iwl_mvm_limits_ap, 68 .n_limits = ARRAY_SIZE(iwl_mvm_limits_ap), 69 }, 70 }; 71 72 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 73 .max_peers = IWL_TOF_MAX_APS, 74 .report_ap_tsf = 1, 75 .randomize_mac_addr = 1, 76 77 .ftm = { 78 .supported = 1, 79 .asap = 1, 80 .non_asap = 1, 81 .request_lci = 1, 82 .request_civicloc = 1, 83 .trigger_based = 1, 84 .non_trigger_based = 1, 85 .max_bursts_exponent = -1, /* all supported */ 86 .max_ftms_per_burst = 0, /* no limits */ 87 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 88 BIT(NL80211_CHAN_WIDTH_20) | 89 BIT(NL80211_CHAN_WIDTH_40) | 90 BIT(NL80211_CHAN_WIDTH_80) | 91 BIT(NL80211_CHAN_WIDTH_160), 92 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 93 BIT(NL80211_PREAMBLE_HT) | 94 BIT(NL80211_PREAMBLE_VHT) | 95 BIT(NL80211_PREAMBLE_HE), 96 }, 97 }; 98 99 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 100 enum set_key_cmd cmd, 101 struct ieee80211_vif *vif, 102 struct ieee80211_sta *sta, 103 struct ieee80211_key_conf *key); 104 105 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 106 { 107 int i; 108 109 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 110 for (i = 0; i < NUM_PHY_CTX; i++) { 111 mvm->phy_ctxts[i].id = i; 112 mvm->phy_ctxts[i].ref = 0; 113 } 114 } 115 116 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 117 const char *alpha2, 118 enum iwl_mcc_source src_id, 119 bool *changed) 120 { 121 struct ieee80211_regdomain *regd = NULL; 122 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 124 struct iwl_mcc_update_resp_v8 *resp; 125 u8 resp_ver; 126 127 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 128 129 lockdep_assert_held(&mvm->mutex); 130 131 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 132 if (IS_ERR_OR_NULL(resp)) { 133 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 134 PTR_ERR_OR_ZERO(resp)); 135 resp = NULL; 136 goto out; 137 } 138 139 if (changed) { 140 u32 status = le32_to_cpu(resp->status); 141 142 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 143 status == MCC_RESP_ILLEGAL); 144 } 145 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 146 MCC_UPDATE_CMD, 0); 147 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 148 149 regd = iwl_parse_nvm_mcc_info(mvm->trans, 150 __le32_to_cpu(resp->n_channels), 151 resp->channels, 152 __le16_to_cpu(resp->mcc), 153 __le16_to_cpu(resp->geo_info), 154 le32_to_cpu(resp->cap), resp_ver); 155 /* Store the return source id */ 156 src_id = resp->source_id; 157 if (IS_ERR_OR_NULL(regd)) { 158 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 159 PTR_ERR_OR_ZERO(regd)); 160 goto out; 161 } 162 163 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 164 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 165 mvm->lar_regdom_set = true; 166 mvm->mcc_src = src_id; 167 168 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 169 170 out: 171 kfree(resp); 172 return regd; 173 } 174 175 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 176 { 177 bool changed; 178 struct ieee80211_regdomain *regd; 179 180 if (!iwl_mvm_is_lar_supported(mvm)) 181 return; 182 183 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 184 if (!IS_ERR_OR_NULL(regd)) { 185 /* only update the regulatory core if changed */ 186 if (changed) 187 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 188 189 kfree(regd); 190 } 191 } 192 193 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 194 bool *changed) 195 { 196 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 197 iwl_mvm_is_wifi_mcc_supported(mvm) ? 198 MCC_SOURCE_GET_CURRENT : 199 MCC_SOURCE_OLD_FW, changed); 200 } 201 202 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 203 { 204 enum iwl_mcc_source used_src; 205 struct ieee80211_regdomain *regd; 206 int ret; 207 bool changed; 208 const struct ieee80211_regdomain *r = 209 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 210 211 if (!r) 212 return -ENOENT; 213 214 /* save the last source in case we overwrite it below */ 215 used_src = mvm->mcc_src; 216 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 217 /* Notify the firmware we support wifi location updates */ 218 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 219 if (!IS_ERR_OR_NULL(regd)) 220 kfree(regd); 221 } 222 223 /* Now set our last stored MCC and source */ 224 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 225 &changed); 226 if (IS_ERR_OR_NULL(regd)) 227 return -EIO; 228 229 /* update cfg80211 if the regdomain was changed or the caller explicitly 230 * asked to update regdomain 231 */ 232 if (changed || force_regd_sync) 233 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 234 else 235 ret = 0; 236 237 kfree(regd); 238 return ret; 239 } 240 241 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 242 static const u8 he_if_types_ext_capa_sta[] = { 243 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 244 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 245 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 246 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 247 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 248 }; 249 250 static const u8 tm_if_types_ext_capa_sta[] = { 251 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 252 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 253 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 254 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 255 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 256 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 257 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 258 }; 259 260 /* Additional interface types for which extended capabilities are 261 * specified separately 262 */ 263 264 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 265 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 266 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 267 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 268 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 269 #define IWL_MVM_MLD_CAPA_OPS (FIELD_PREP_CONST( \ 270 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \ 271 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) | \ 272 IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT) 273 274 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 275 { 276 .iftype = NL80211_IFTYPE_STATION, 277 .extended_capabilities = he_if_types_ext_capa_sta, 278 .extended_capabilities_mask = he_if_types_ext_capa_sta, 279 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 280 /* relevant only if EHT is supported */ 281 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 282 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 283 }, 284 { 285 .iftype = NL80211_IFTYPE_STATION, 286 .extended_capabilities = tm_if_types_ext_capa_sta, 287 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 288 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 289 /* relevant only if EHT is supported */ 290 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 291 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 292 }, 293 }; 294 295 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, int radio_idx, 296 u32 *tx_ant, u32 *rx_ant) 297 { 298 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 299 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 300 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 301 return 0; 302 } 303 304 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, int radio_idx, u32 tx_ant, 305 u32 rx_ant) 306 { 307 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 308 309 /* This has been tested on those devices only */ 310 if (mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 311 mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_22000 && 312 mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_AX210) 313 return -EOPNOTSUPP; 314 315 if (!mvm->nvm_data) 316 return -EBUSY; 317 318 /* mac80211 ensures the device is not started, 319 * so the firmware cannot be running 320 */ 321 322 mvm->set_tx_ant = tx_ant; 323 mvm->set_rx_ant = rx_ant; 324 325 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 326 327 return 0; 328 } 329 330 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 331 { 332 struct ieee80211_hw *hw = mvm->hw; 333 int num_mac, ret, i; 334 static const u32 mvm_ciphers[] = { 335 WLAN_CIPHER_SUITE_WEP40, 336 WLAN_CIPHER_SUITE_WEP104, 337 WLAN_CIPHER_SUITE_TKIP, 338 WLAN_CIPHER_SUITE_CCMP, 339 }; 340 #ifdef CONFIG_PM_SLEEP 341 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 342 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 343 #endif 344 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 345 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 346 347 /* Tell mac80211 our characteristics */ 348 ieee80211_hw_set(hw, SIGNAL_DBM); 349 ieee80211_hw_set(hw, SPECTRUM_MGMT); 350 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 351 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 352 ieee80211_hw_set(hw, SUPPORTS_PS); 353 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 354 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 355 ieee80211_hw_set(hw, CONNECTION_MONITOR); 356 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 357 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 358 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 359 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 360 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 361 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 362 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 363 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 364 365 /* Set this early since we need to have it for the check below */ 366 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 367 !iwlwifi_mod_params.disable_11ax && 368 !iwlwifi_mod_params.disable_11be) { 369 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 370 /* we handle this already earlier, but need it for MLO */ 371 ieee80211_hw_set(hw, HANDLES_QUIET_CSA); 372 } 373 374 /* With MLD FW API, it tracks timing by itself, 375 * no need for any timing from the host 376 */ 377 if (!mvm->mld_api_is_used) 378 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 379 380 /* 381 * On older devices, enabling TX A-MSDU occasionally leads to 382 * something getting messed up, the command read from the FIFO 383 * gets out of sync and isn't a TX command, so that we have an 384 * assert EDC. 385 * 386 * It's not clear where the bug is, but since we didn't used to 387 * support A-MSDU until moving the mac80211 iTXQs, just leave it 388 * for older devices. We also don't see this issue on any newer 389 * devices. 390 */ 391 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 392 ieee80211_hw_set(hw, TX_AMSDU); 393 ieee80211_hw_set(hw, TX_FRAG_LIST); 394 395 if (iwl_mvm_has_tlc_offload(mvm)) { 396 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 397 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 398 } 399 400 /* We want to use the mac80211's reorder buffer for 9000 */ 401 if (iwl_mvm_has_new_rx_api(mvm) && 402 mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_9000) 403 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 404 405 if (fw_has_capa(&mvm->fw->ucode_capa, 406 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 407 ieee80211_hw_set(hw, AP_LINK_PS); 408 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 409 /* 410 * we absolutely need this for the new TX API since that comes 411 * with many more queues than the current code can deal with 412 * for station powersave 413 */ 414 return -EINVAL; 415 } 416 417 if (mvm->trans->info.num_rxqs > 1) 418 ieee80211_hw_set(hw, USES_RSS); 419 420 if (mvm->trans->info.max_skb_frags) 421 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 422 423 hw->queues = IEEE80211_NUM_ACS; 424 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 425 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 426 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 427 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 428 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 429 430 hw->radiotap_timestamp.units_pos = 431 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 432 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 433 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 434 hw->radiotap_timestamp.accuracy = 22; 435 436 if (!iwl_mvm_has_tlc_offload(mvm)) 437 hw->rate_control_algorithm = RS_NAME; 438 439 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 440 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 441 hw->max_tx_fragments = mvm->trans->info.max_skb_frags; 442 443 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 444 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 445 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 446 hw->wiphy->cipher_suites = mvm->ciphers; 447 448 if (iwl_mvm_has_new_rx_api(mvm)) { 449 mvm->ciphers[hw->wiphy->n_cipher_suites] = 450 WLAN_CIPHER_SUITE_GCMP; 451 hw->wiphy->n_cipher_suites++; 452 mvm->ciphers[hw->wiphy->n_cipher_suites] = 453 WLAN_CIPHER_SUITE_GCMP_256; 454 hw->wiphy->n_cipher_suites++; 455 } 456 457 if (iwlwifi_mod_params.swcrypto) 458 IWL_ERR(mvm, 459 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 460 if (!iwlwifi_mod_params.bt_coex_active) 461 IWL_ERR(mvm, 462 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 463 464 ieee80211_hw_set(hw, MFP_CAPABLE); 465 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 466 hw->wiphy->n_cipher_suites++; 467 if (iwl_mvm_has_new_rx_api(mvm)) { 468 mvm->ciphers[hw->wiphy->n_cipher_suites] = 469 WLAN_CIPHER_SUITE_BIP_GMAC_128; 470 hw->wiphy->n_cipher_suites++; 471 mvm->ciphers[hw->wiphy->n_cipher_suites] = 472 WLAN_CIPHER_SUITE_BIP_GMAC_256; 473 hw->wiphy->n_cipher_suites++; 474 } 475 476 wiphy_ext_feature_set(hw->wiphy, 477 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 478 wiphy_ext_feature_set(hw->wiphy, 479 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 480 481 if (fw_has_capa(&mvm->fw->ucode_capa, 482 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 483 wiphy_ext_feature_set(hw->wiphy, 484 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 485 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 486 } 487 488 if (sec_key_ver && 489 fw_has_capa(&mvm->fw->ucode_capa, 490 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 491 wiphy_ext_feature_set(hw->wiphy, 492 NL80211_EXT_FEATURE_BEACON_PROTECTION); 493 else if (fw_has_capa(&mvm->fw->ucode_capa, 494 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 495 wiphy_ext_feature_set(hw->wiphy, 496 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 497 498 if (fw_has_capa(&mvm->fw->ucode_capa, 499 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 500 hw->wiphy->hw_timestamp_max_peers = 1; 501 502 if (fw_has_capa(&mvm->fw->ucode_capa, 503 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 504 wiphy_ext_feature_set(hw->wiphy, 505 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 506 507 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 508 hw->wiphy->features |= 509 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 510 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 511 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 512 513 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 514 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 515 hw->chanctx_data_size = sizeof(u16); 516 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 517 518 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 519 BIT(NL80211_IFTYPE_P2P_CLIENT) | 520 BIT(NL80211_IFTYPE_AP) | 521 BIT(NL80211_IFTYPE_P2P_GO) | 522 BIT(NL80211_IFTYPE_P2P_DEVICE) | 523 BIT(NL80211_IFTYPE_ADHOC); 524 525 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 526 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 527 528 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 529 * the hw, preventing us to control which key(id) to use per MPDU. 530 * Till that's fixed we can't use Extended Key ID for the newer cards. 531 */ 532 if (!iwl_mvm_has_new_tx_api(mvm)) 533 wiphy_ext_feature_set(hw->wiphy, 534 NL80211_EXT_FEATURE_EXT_KEY_ID); 535 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 536 537 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 538 if (iwl_mvm_is_lar_supported(mvm)) 539 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 540 else 541 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 542 REGULATORY_DISABLE_BEACON_HINTS; 543 544 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 545 wiphy_ext_feature_set(hw->wiphy, 546 NL80211_EXT_FEATURE_DFS_CONCURRENT); 547 548 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 549 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 550 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 551 552 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 553 hw->wiphy->n_iface_combinations = 554 ARRAY_SIZE(iwl_mvm_iface_combinations); 555 556 hw->wiphy->max_remain_on_channel_duration = 10000; 557 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 558 559 /* Extract MAC address */ 560 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 561 hw->wiphy->addresses = mvm->addresses; 562 hw->wiphy->n_addresses = 1; 563 564 /* Extract additional MAC addresses if available */ 565 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 566 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 567 568 for (i = 1; i < num_mac; i++) { 569 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 570 ETH_ALEN); 571 mvm->addresses[i].addr[5]++; 572 hw->wiphy->n_addresses++; 573 } 574 575 iwl_mvm_reset_phy_ctxts(mvm); 576 577 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 578 579 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 580 581 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 582 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 583 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 584 585 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 586 mvm->max_scans = IWL_MAX_UMAC_SCANS; 587 else 588 mvm->max_scans = IWL_MAX_LMAC_SCANS; 589 590 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 591 hw->wiphy->bands[NL80211_BAND_2GHZ] = 592 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 593 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 594 hw->wiphy->bands[NL80211_BAND_5GHZ] = 595 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 596 597 if (fw_has_capa(&mvm->fw->ucode_capa, 598 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 599 fw_has_api(&mvm->fw->ucode_capa, 600 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 601 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 602 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 603 } 604 if (fw_has_capa(&mvm->fw->ucode_capa, 605 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 606 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 607 hw->wiphy->bands[NL80211_BAND_6GHZ] = 608 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 609 610 hw->wiphy->hw_version = mvm->trans->info.hw_id; 611 612 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 613 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 614 else 615 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 616 617 hw->wiphy->max_sched_scan_reqs = 1; 618 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 619 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 620 /* we create the 802.11 header and zero length SSID IE. */ 621 hw->wiphy->max_sched_scan_ie_len = 622 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 623 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 624 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 625 626 /* 627 * the firmware uses u8 for num of iterations, but 0xff is saved for 628 * infinite loop, so the maximum number of iterations is actually 254. 629 */ 630 hw->wiphy->max_sched_scan_plan_iterations = 254; 631 632 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 633 NL80211_FEATURE_LOW_PRIORITY_SCAN | 634 NL80211_FEATURE_P2P_GO_OPPPS | 635 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 636 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 637 638 /* when firmware supports RLC/SMPS offload, do not set these 639 * driver features, since it's no longer supported by driver. 640 */ 641 if (!iwl_mvm_has_rlc_offload(mvm)) 642 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS | 643 NL80211_FEATURE_DYNAMIC_SMPS; 644 645 if (fw_has_capa(&mvm->fw->ucode_capa, 646 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 647 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 648 if (fw_has_capa(&mvm->fw->ucode_capa, 649 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 650 hw->wiphy->features |= NL80211_FEATURE_QUIET; 651 652 if (fw_has_capa(&mvm->fw->ucode_capa, 653 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 654 hw->wiphy->features |= 655 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 656 657 if (fw_has_capa(&mvm->fw->ucode_capa, 658 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 659 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 660 661 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 662 IWL_FW_CMD_VER_UNKNOWN) >= 3) 663 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 664 665 if (fw_has_api(&mvm->fw->ucode_capa, 666 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 667 wiphy_ext_feature_set(hw->wiphy, 668 NL80211_EXT_FEATURE_SCAN_START_TIME); 669 wiphy_ext_feature_set(hw->wiphy, 670 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 671 } 672 673 if (iwl_mvm_is_oce_supported(mvm)) { 674 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 675 676 wiphy_ext_feature_set(hw->wiphy, 677 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 678 wiphy_ext_feature_set(hw->wiphy, 679 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 680 wiphy_ext_feature_set(hw->wiphy, 681 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 682 683 /* Old firmware also supports probe deferral and suppression */ 684 if (scan_ver < 15) 685 wiphy_ext_feature_set(hw->wiphy, 686 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 687 } 688 689 hw->wiphy->iftype_ext_capab = NULL; 690 hw->wiphy->num_iftype_ext_capab = 0; 691 692 if (mvm->nvm_data->sku_cap_11ax_enable && 693 !iwlwifi_mod_params.disable_11ax) { 694 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 695 hw->wiphy->num_iftype_ext_capab = 696 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 697 698 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 699 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 700 } 701 702 if (iwl_fw_lookup_cmd_ver(mvm->fw, 703 WIDE_ID(DATA_PATH_GROUP, 704 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 705 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 706 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 707 708 if (!hw->wiphy->iftype_ext_capab) { 709 hw->wiphy->num_iftype_ext_capab = 1; 710 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 711 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 712 } else { 713 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 714 } 715 } 716 717 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 718 TOF_RANGE_REQ_CMD), 719 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 720 wiphy_ext_feature_set(hw->wiphy, 721 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 722 723 if (fw_has_capa(&mvm->fw->ucode_capa, 724 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 725 wiphy_ext_feature_set(hw->wiphy, 726 NL80211_EXT_FEATURE_SECURE_LTF); 727 } 728 729 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 730 731 #ifdef CONFIG_PM_SLEEP 732 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 733 device_can_wakeup(mvm->trans->dev)) { 734 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 735 WIPHY_WOWLAN_DISCONNECT | 736 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 737 WIPHY_WOWLAN_RFKILL_RELEASE | 738 WIPHY_WOWLAN_NET_DETECT; 739 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 740 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 741 WIPHY_WOWLAN_4WAY_HANDSHAKE; 742 743 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 744 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 745 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 746 mvm->wowlan.max_nd_match_sets = 747 iwl_umac_scan_get_max_profiles(mvm->fw); 748 hw->wiphy->wowlan = &mvm->wowlan; 749 } 750 #endif 751 752 ret = iwl_mvm_leds_init(mvm); 753 if (ret) 754 return ret; 755 756 if (fw_has_capa(&mvm->fw->ucode_capa, 757 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 758 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 759 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 760 ieee80211_hw_set(hw, TDLS_WIDER_BW); 761 } 762 763 if (fw_has_capa(&mvm->fw->ucode_capa, 764 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 765 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 766 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 767 } 768 769 hw->netdev_features |= mvm->trans->mac_cfg->base->features; 770 if (!iwl_mvm_is_csum_supported(mvm)) 771 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 772 773 if (mvm->cfg->vht_mu_mimo_supported) 774 wiphy_ext_feature_set(hw->wiphy, 775 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 776 777 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 778 wiphy_ext_feature_set(hw->wiphy, 779 NL80211_EXT_FEATURE_PROTECTED_TWT); 780 781 iwl_mvm_vendor_cmds_register(mvm); 782 783 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 784 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 785 786 ret = ieee80211_register_hw(mvm->hw); 787 if (ret) { 788 iwl_mvm_leds_exit(mvm); 789 } 790 791 return ret; 792 } 793 794 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 795 struct ieee80211_sta *sta) 796 { 797 if (likely(sta)) { 798 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 799 return; 800 } else { 801 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 802 return; 803 } 804 805 ieee80211_free_txskb(mvm->hw, skb); 806 } 807 808 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 809 struct ieee80211_tx_control *control, struct sk_buff *skb) 810 { 811 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 812 struct ieee80211_sta *sta = control->sta; 813 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 814 struct ieee80211_hdr *hdr = (void *)skb->data; 815 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 816 IEEE80211_TX_CTL_TX_OFFCHAN; 817 u32 link_id = u32_get_bits(info->control.flags, 818 IEEE80211_TX_CTRL_MLO_LINK); 819 struct ieee80211_sta *tmp_sta = sta; 820 821 if (iwl_mvm_is_radio_killed(mvm)) { 822 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 823 goto drop; 824 } 825 826 if (offchannel && 827 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) && 828 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 829 goto drop; 830 831 /* 832 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 833 * so we treat the others as broadcast 834 */ 835 if (ieee80211_is_mgmt(hdr->frame_control)) 836 sta = NULL; 837 838 /* this shouldn't even happen: just drop */ 839 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 840 !offchannel) 841 goto drop; 842 843 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 844 !ieee80211_is_probe_resp(hdr->frame_control)) { 845 /* translate MLD addresses to LINK addresses */ 846 struct ieee80211_link_sta *link_sta = 847 rcu_dereference(tmp_sta->link[link_id]); 848 struct ieee80211_bss_conf *link_conf = 849 rcu_dereference(info->control.vif->link_conf[link_id]); 850 struct ieee80211_mgmt *mgmt; 851 852 if (WARN_ON(!link_sta || !link_conf)) 853 goto drop; 854 855 /* if sta is NULL, the frame is a management frame */ 856 mgmt = (void *)hdr; 857 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 858 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 859 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 860 } 861 862 iwl_mvm_tx_skb(mvm, skb, sta); 863 return; 864 drop: 865 ieee80211_free_txskb(hw, skb); 866 } 867 868 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 869 { 870 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 871 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 872 struct sk_buff *skb = NULL; 873 874 /* 875 * No need for threads to be pending here, they can leave the first 876 * taker all the work. 877 * 878 * mvmtxq->tx_request logic: 879 * 880 * If 0, no one is currently TXing, set to 1 to indicate current thread 881 * will now start TX and other threads should quit. 882 * 883 * If 1, another thread is currently TXing, set to 2 to indicate to 884 * that thread that there was another request. Since that request may 885 * have raced with the check whether the queue is empty, the TXing 886 * thread should check the queue's status one more time before leaving. 887 * This check is done in order to not leave any TX hanging in the queue 888 * until the next TX invocation (which may not even happen). 889 * 890 * If 2, another thread is currently TXing, and it will already double 891 * check the queue, so do nothing. 892 */ 893 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 894 return; 895 896 rcu_read_lock(); 897 do { 898 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 899 &mvmtxq->state) && 900 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 901 &mvmtxq->state) && 902 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, 903 &mvmtxq->state) && 904 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 905 skb = ieee80211_tx_dequeue(hw, txq); 906 907 if (!skb) { 908 if (txq->sta) 909 IWL_DEBUG_TX(mvm, 910 "TXQ of sta %pM tid %d is now empty\n", 911 txq->sta->addr, 912 txq->tid); 913 break; 914 } 915 916 iwl_mvm_tx_skb(mvm, skb, txq->sta); 917 } 918 } while (atomic_dec_return(&mvmtxq->tx_request)); 919 rcu_read_unlock(); 920 } 921 922 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 923 struct ieee80211_txq *txq) 924 { 925 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 926 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 927 928 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 929 !txq->sta) { 930 iwl_mvm_mac_itxq_xmit(hw, txq); 931 return; 932 } 933 934 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 935 * to handle any packets we leave on the txq now 936 */ 937 938 spin_lock_bh(&mvm->add_stream_lock); 939 /* The list is being deleted only after the queue is fully allocated. */ 940 if (list_empty(&mvmtxq->list) && 941 /* recheck under lock */ 942 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 943 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 944 schedule_work(&mvm->add_stream_wk); 945 } 946 spin_unlock_bh(&mvm->add_stream_lock); 947 } 948 949 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 950 do { \ 951 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 952 break; \ 953 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 954 } while (0) 955 956 static void 957 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 958 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 959 enum ieee80211_ampdu_mlme_action action) 960 { 961 struct iwl_fw_dbg_trigger_tlv *trig; 962 struct iwl_fw_dbg_trigger_ba *ba_trig; 963 964 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 965 FW_DBG_TRIGGER_BA); 966 if (!trig) 967 return; 968 969 ba_trig = (void *)trig->data; 970 971 switch (action) { 972 case IEEE80211_AMPDU_TX_OPERATIONAL: { 973 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 974 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 975 976 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 977 "TX AGG START: MAC %pM tid %d ssn %d\n", 978 sta->addr, tid, tid_data->ssn); 979 break; 980 } 981 case IEEE80211_AMPDU_TX_STOP_CONT: 982 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 983 "TX AGG STOP: MAC %pM tid %d\n", 984 sta->addr, tid); 985 break; 986 case IEEE80211_AMPDU_RX_START: 987 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 988 "RX AGG START: MAC %pM tid %d ssn %d\n", 989 sta->addr, tid, rx_ba_ssn); 990 break; 991 case IEEE80211_AMPDU_RX_STOP: 992 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 993 "RX AGG STOP: MAC %pM tid %d\n", 994 sta->addr, tid); 995 break; 996 default: 997 break; 998 } 999 } 1000 1001 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1002 struct ieee80211_vif *vif, 1003 struct ieee80211_ampdu_params *params) 1004 { 1005 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1006 int ret; 1007 struct ieee80211_sta *sta = params->sta; 1008 enum ieee80211_ampdu_mlme_action action = params->action; 1009 u16 tid = params->tid; 1010 u16 *ssn = ¶ms->ssn; 1011 u16 buf_size = params->buf_size; 1012 bool amsdu = params->amsdu; 1013 u16 timeout = params->timeout; 1014 1015 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1016 sta->addr, tid, action); 1017 1018 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1019 return -EACCES; 1020 1021 mutex_lock(&mvm->mutex); 1022 1023 switch (action) { 1024 case IEEE80211_AMPDU_RX_START: 1025 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1026 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1027 struct iwl_mvm_vif *mvmvif; 1028 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1029 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1030 1031 mdata->opened_rx_ba_sessions = true; 1032 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1033 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1034 } 1035 if (!iwl_enable_rx_ampdu()) { 1036 ret = -EINVAL; 1037 break; 1038 } 1039 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1040 timeout); 1041 break; 1042 case IEEE80211_AMPDU_RX_STOP: 1043 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1044 timeout); 1045 break; 1046 case IEEE80211_AMPDU_TX_START: 1047 if (!iwl_enable_tx_ampdu()) { 1048 ret = -EINVAL; 1049 break; 1050 } 1051 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1052 break; 1053 case IEEE80211_AMPDU_TX_STOP_CONT: 1054 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1055 break; 1056 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1057 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1058 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1059 break; 1060 case IEEE80211_AMPDU_TX_OPERATIONAL: 1061 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1062 buf_size, amsdu); 1063 break; 1064 default: 1065 WARN_ON_ONCE(1); 1066 ret = -EINVAL; 1067 break; 1068 } 1069 1070 if (!ret) { 1071 u16 rx_ba_ssn = 0; 1072 1073 if (action == IEEE80211_AMPDU_RX_START) 1074 rx_ba_ssn = *ssn; 1075 1076 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1077 rx_ba_ssn, action); 1078 } 1079 mutex_unlock(&mvm->mutex); 1080 1081 return ret; 1082 } 1083 1084 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1085 struct ieee80211_vif *vif) 1086 { 1087 struct iwl_mvm *mvm = data; 1088 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1089 struct iwl_probe_resp_data *probe_data; 1090 unsigned int link_id; 1091 1092 mvmvif->uploaded = false; 1093 1094 spin_lock_bh(&mvm->time_event_lock); 1095 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1096 spin_unlock_bh(&mvm->time_event_lock); 1097 1098 mvmvif->roc_activity = ROC_NUM_ACTIVITIES; 1099 1100 mvmvif->bf_enabled = false; 1101 mvmvif->ba_enabled = false; 1102 mvmvif->ap_sta = NULL; 1103 1104 mvmvif->esr_active = false; 1105 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE; 1106 1107 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1108 mvmvif->link[link_id]->ap_sta_id = IWL_INVALID_STA; 1109 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1110 mvmvif->link[link_id]->phy_ctxt = NULL; 1111 mvmvif->link[link_id]->active = 0; 1112 mvmvif->link[link_id]->igtk = NULL; 1113 memset(&mvmvif->link[link_id]->bf_data, 0, 1114 sizeof(mvmvif->link[link_id]->bf_data)); 1115 } 1116 1117 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1118 lockdep_is_held(&mvm->mutex)); 1119 if (probe_data) 1120 kfree_rcu(probe_data, rcu_head); 1121 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1122 } 1123 1124 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1125 { 1126 struct iwl_mvm *mvm = data; 1127 struct iwl_mvm_sta *mvm_sta; 1128 struct ieee80211_vif *vif; 1129 int link_id; 1130 1131 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1132 vif = mvm_sta->vif; 1133 1134 if (!sta->valid_links) 1135 return; 1136 1137 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1138 struct iwl_mvm_link_sta *mvm_link_sta; 1139 1140 mvm_link_sta = 1141 rcu_dereference_check(mvm_sta->link[link_id], 1142 lockdep_is_held(&mvm->mutex)); 1143 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1144 /* 1145 * We have a link STA but the link is inactive in 1146 * mac80211. This will happen if we failed to 1147 * deactivate the link but mac80211 roll back the 1148 * deactivation of the link. 1149 * Delete the stale data to avoid issues later on. 1150 */ 1151 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1152 link_id); 1153 } 1154 } 1155 } 1156 1157 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1158 { 1159 iwl_mvm_stop_device(mvm); 1160 1161 mvm->cur_aid = 0; 1162 1163 mvm->scan_status = 0; 1164 mvm->ps_disabled = false; 1165 mvm->rfkill_safe_init_done = false; 1166 1167 /* just in case one was running */ 1168 iwl_mvm_cleanup_roc_te(mvm); 1169 ieee80211_remain_on_channel_expired(mvm->hw); 1170 1171 iwl_mvm_ftm_restart(mvm); 1172 1173 /* 1174 * cleanup all interfaces, even inactive ones, as some might have 1175 * gone down during the HW restart 1176 */ 1177 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1178 1179 /* cleanup stations as links may be gone after restart */ 1180 ieee80211_iterate_stations_atomic(mvm->hw, 1181 iwl_mvm_cleanup_sta_iterator, mvm); 1182 1183 mvm->p2p_device_vif = NULL; 1184 1185 iwl_mvm_reset_phy_ctxts(mvm); 1186 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1187 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1188 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1189 1190 ieee80211_wake_queues(mvm->hw); 1191 1192 mvm->rx_ba_sessions = 0; 1193 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1194 mvm->monitor_on = false; 1195 #ifdef CONFIG_IWLWIFI_DEBUGFS 1196 mvm->beacon_inject_active = false; 1197 #endif 1198 1199 /* keep statistics ticking */ 1200 iwl_mvm_accu_radio_stats(mvm); 1201 } 1202 1203 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1204 { 1205 bool fast_resume = false; 1206 int ret; 1207 1208 lockdep_assert_held(&mvm->mutex); 1209 1210 ret = iwl_mvm_mei_get_ownership(mvm); 1211 if (ret) 1212 return ret; 1213 1214 if (mvm->mei_nvm_data) { 1215 /* We got the NIC, we can now free the MEI NVM data */ 1216 kfree(mvm->mei_nvm_data); 1217 mvm->mei_nvm_data = NULL; 1218 1219 /* 1220 * We can't free the nvm_data we allocated based on the SAP 1221 * data because we registered to cfg80211 with the channels 1222 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1223 * just in order to be able free it later. 1224 * NULLify nvm_data so that we will read the NVM from the 1225 * firmware this time. 1226 */ 1227 mvm->temp_nvm_data = mvm->nvm_data; 1228 mvm->nvm_data = NULL; 1229 } 1230 1231 #ifdef CONFIG_PM_SLEEP 1232 /* fast_resume will be cleared by iwl_mvm_fast_resume */ 1233 fast_resume = mvm->fast_resume; 1234 1235 if (fast_resume) { 1236 iwl_mvm_mei_device_state(mvm, true); 1237 ret = iwl_mvm_fast_resume(mvm); 1238 if (ret) { 1239 iwl_mvm_stop_device(mvm); 1240 /* iwl_mvm_up() will be called further down */ 1241 } else { 1242 /* 1243 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon 1244 * mac_down() so that debugfs will stop honoring 1245 * requests after we flush all the workers. 1246 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again 1247 * now that we are back. This is a bit abusing the 1248 * flag since the firmware wasn't really ever stopped, 1249 * but this still serves the purpose. 1250 */ 1251 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1252 } 1253 } 1254 #endif /* CONFIG_PM_SLEEP */ 1255 1256 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1257 /* 1258 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1259 * so later code will - from now on - see that we're doing it. 1260 */ 1261 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1262 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1263 /* Clean up some internal and mac80211 state on restart */ 1264 iwl_mvm_restart_cleanup(mvm); 1265 } 1266 1267 /* we also want to load the firmware if fast_resume failed */ 1268 if (!fast_resume || ret) 1269 ret = iwl_mvm_up(mvm); 1270 1271 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1272 NULL); 1273 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1274 NULL); 1275 1276 mvm->last_reset_or_resume_time_jiffies = jiffies; 1277 1278 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1279 /* Something went wrong - we need to finish some cleanup 1280 * that normally iwl_mvm_mac_restart_complete() below 1281 * would do. 1282 */ 1283 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1284 } 1285 1286 return ret; 1287 } 1288 1289 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1290 { 1291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1292 int ret; 1293 int retry, max_retry = 0; 1294 1295 mutex_lock(&mvm->mutex); 1296 1297 /* we are starting the mac not in error flow, and restart is enabled */ 1298 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1299 iwlwifi_mod_params.fw_restart) 1300 max_retry = IWL_MAX_INIT_RETRY; 1301 1302 for (retry = 0; retry <= max_retry; retry++) { 1303 ret = __iwl_mvm_mac_start(mvm); 1304 if (ret != -ETIMEDOUT) 1305 break; 1306 1307 IWL_ERR(mvm, "mac start retry %d\n", retry); 1308 } 1309 1310 mutex_unlock(&mvm->mutex); 1311 1312 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1313 1314 return ret; 1315 } 1316 1317 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1318 { 1319 int ret; 1320 1321 guard(mvm)(mvm); 1322 1323 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1324 1325 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1326 if (ret) 1327 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1328 ret); 1329 1330 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1331 1332 /* 1333 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1334 * of packets the FW sent out, so we must reconnect. 1335 */ 1336 iwl_mvm_teardown_tdls_peers(mvm); 1337 1338 IWL_INFO(mvm, "restart completed\n"); 1339 iwl_trans_finish_sw_reset(mvm->trans); 1340 1341 /* no need to lock, adding in parallel would schedule too */ 1342 if (!list_empty(&mvm->add_stream_txqs)) 1343 schedule_work(&mvm->add_stream_wk); 1344 } 1345 1346 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1347 enum ieee80211_reconfig_type reconfig_type) 1348 { 1349 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1350 1351 switch (reconfig_type) { 1352 case IEEE80211_RECONFIG_TYPE_RESTART: 1353 iwl_mvm_restart_complete(mvm); 1354 break; 1355 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1356 break; 1357 } 1358 } 1359 1360 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend) 1361 { 1362 lockdep_assert_held(&mvm->mutex); 1363 1364 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1365 1366 /* firmware counters are obviously reset now, but we shouldn't 1367 * partially track so also clear the fw_reset_accu counters. 1368 */ 1369 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1370 1371 /* async_handlers_wk is now blocked */ 1372 1373 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1374 iwl_mvm_rm_aux_sta(mvm); 1375 1376 if (suspend && 1377 mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 1378 iwl_mvm_fast_suspend(mvm); 1379 /* From this point on, we won't touch the device */ 1380 iwl_mvm_mei_device_state(mvm, false); 1381 } else { 1382 iwl_mvm_stop_device(mvm); 1383 } 1384 1385 iwl_mvm_async_handlers_purge(mvm); 1386 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1387 1388 /* 1389 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1390 * hw (as restart_complete() won't be called in this case) and mac80211 1391 * won't execute the restart. 1392 * But make sure to cleanup interfaces that have gone down before/during 1393 * HW restart was requested. 1394 */ 1395 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1396 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1397 &mvm->status)) 1398 ieee80211_iterate_interfaces(mvm->hw, 0, 1399 iwl_mvm_cleanup_iterator, mvm); 1400 1401 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1402 * make sure there's nothing left there and warn if any is found. 1403 */ 1404 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1405 int i; 1406 1407 for (i = 0; i < mvm->max_scans; i++) { 1408 if (WARN_ONCE(mvm->scan_uid_status[i], 1409 "UMAC scan UID %d status was not cleaned\n", 1410 i)) 1411 mvm->scan_uid_status[i] = 0; 1412 } 1413 } 1414 } 1415 1416 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend) 1417 { 1418 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1419 1420 /* Stop internal MLO scan, if running */ 1421 mutex_lock(&mvm->mutex); 1422 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1423 mutex_unlock(&mvm->mutex); 1424 1425 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk); 1426 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1427 flush_work(&mvm->async_handlers_wk); 1428 flush_work(&mvm->add_stream_wk); 1429 1430 /* 1431 * Lock and clear the firmware running bit here already, so that 1432 * new commands coming in elsewhere, e.g. from debugfs, will not 1433 * be able to proceed. This is important here because one of those 1434 * debugfs files causes the firmware dump to be triggered, and if we 1435 * don't stop debugfs accesses before canceling that it could be 1436 * retriggered after we flush it but before we've cleared the bit. 1437 */ 1438 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1439 1440 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1441 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1442 1443 /* 1444 * The work item could be running or queued if the 1445 * ROC time event stops just as we get here. 1446 */ 1447 flush_work(&mvm->roc_done_wk); 1448 1449 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1450 1451 mutex_lock(&mvm->mutex); 1452 __iwl_mvm_mac_stop(mvm, suspend); 1453 mutex_unlock(&mvm->mutex); 1454 1455 /* 1456 * The worker might have been waiting for the mutex, let it run and 1457 * discover that its list is now empty. 1458 */ 1459 cancel_work_sync(&mvm->async_handlers_wk); 1460 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1461 } 1462 1463 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1464 { 1465 u16 i; 1466 1467 lockdep_assert_held(&mvm->mutex); 1468 1469 for (i = 0; i < NUM_PHY_CTX; i++) 1470 if (!mvm->phy_ctxts[i].ref) 1471 return &mvm->phy_ctxts[i]; 1472 1473 IWL_ERR(mvm, "No available PHY context\n"); 1474 return NULL; 1475 } 1476 1477 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, 1478 struct ieee80211_bss_conf *link_conf, 1479 s16 tx_power) 1480 { 1481 u32 cmd_id = REDUCE_TX_POWER_CMD; 1482 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(link_conf->vif); 1483 u32 mac_id = mvmvif->id; 1484 int len; 1485 struct iwl_dev_tx_power_cmd_v3_v8 cmd = { 1486 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK), 1487 .common.link_id = cpu_to_le32(mac_id), 1488 }; 1489 struct iwl_dev_tx_power_cmd cmd_v9_v10; 1490 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3); 1491 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ? 1492 IWL_DEV_MAX_TX_POWER : 8 * tx_power; 1493 void *cmd_data = &cmd; 1494 1495 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power); 1496 1497 if (cmd_ver > 8) { 1498 u32 link_id; 1499 1500 if (WARN_ON(!mvmvif->link[link_conf->link_id])) 1501 return -ENODEV; 1502 1503 link_id = mvmvif->link[link_conf->link_id]->fw_link_id; 1504 1505 /* Those fields sit on the same place for v9 and v10 */ 1506 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK); 1507 cmd_v9_v10.common.link_id = cpu_to_le32(link_id); 1508 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power); 1509 cmd_data = &cmd_v9_v10; 1510 } 1511 1512 if (cmd_ver == 10) 1513 len = sizeof(cmd_v9_v10.v10); 1514 else if (cmd_ver == 9) 1515 len = sizeof(cmd_v9_v10.v9); 1516 else if (cmd_ver == 8) 1517 len = sizeof(cmd.v8); 1518 else if (cmd_ver == 7) 1519 len = sizeof(cmd.v7); 1520 else if (cmd_ver == 6) 1521 len = sizeof(cmd.v6); 1522 else if (fw_has_api(&mvm->fw->ucode_capa, 1523 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1524 len = sizeof(cmd.v5); 1525 else if (fw_has_capa(&mvm->fw->ucode_capa, 1526 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1527 len = sizeof(cmd.v4); 1528 else 1529 len = sizeof(cmd.v3); 1530 1531 /* all structs have the same common part, add its length */ 1532 len += sizeof(cmd.common); 1533 1534 if (cmd_ver < 9) 1535 len += sizeof(cmd.per_band); 1536 1537 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data); 1538 1539 } 1540 1541 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1542 { 1543 struct ieee80211_hw *hw = data; 1544 int i; 1545 1546 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1547 struct iwl_mvm_txq *mvmtxq = 1548 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1549 1550 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1551 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1552 } 1553 } 1554 1555 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1556 struct ieee80211_vif *vif, 1557 struct ieee80211_bss_conf *link_conf) 1558 { 1559 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1560 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1561 int ret; 1562 1563 mutex_lock(&mvm->mutex); 1564 1565 if (vif->type == NL80211_IFTYPE_STATION) { 1566 struct iwl_mvm_sta *mvmsta; 1567 unsigned int link_id = link_conf->link_id; 1568 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1569 1570 mvmvif->csa_bcn_pending = false; 1571 mvmvif->csa_blocks_tx = false; 1572 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1573 1574 if (WARN_ON(!mvmsta)) { 1575 ret = -EIO; 1576 goto out_unlock; 1577 } 1578 1579 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1580 if (mvm->mld_api_is_used) 1581 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1582 else 1583 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1584 1585 if (!fw_has_capa(&mvm->fw->ucode_capa, 1586 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1587 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1588 if (ret) 1589 goto out_unlock; 1590 1591 iwl_mvm_stop_session_protection(mvm, vif); 1592 } 1593 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1594 struct iwl_mvm_txq *mvmtxq = 1595 iwl_mvm_txq_from_mac80211(vif->txq); 1596 1597 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1598 1599 local_bh_disable(); 1600 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1601 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1602 local_bh_enable(); 1603 1604 mvmvif->csa_blocks_tx = false; 1605 } 1606 1607 mvmvif->ps_disabled = false; 1608 1609 ret = iwl_mvm_power_update_ps(mvm); 1610 1611 out_unlock: 1612 if (mvmvif->csa_failed) 1613 ret = -EIO; 1614 mutex_unlock(&mvm->mutex); 1615 1616 return ret; 1617 } 1618 1619 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1620 struct ieee80211_vif *vif, 1621 struct ieee80211_bss_conf *link_conf) 1622 { 1623 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1624 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1625 struct iwl_chan_switch_te_cmd cmd = { 1626 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1627 mvmvif->color)), 1628 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1629 }; 1630 1631 /* 1632 * In the new flow since FW is in charge of the timing, 1633 * if driver has canceled the channel switch he will receive the 1634 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1635 */ 1636 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1637 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1638 return; 1639 1640 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1641 1642 mutex_lock(&mvm->mutex); 1643 if (!fw_has_capa(&mvm->fw->ucode_capa, 1644 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1645 iwl_mvm_remove_csa_period(mvm, vif); 1646 else 1647 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1648 WIDE_ID(MAC_CONF_GROUP, 1649 CHANNEL_SWITCH_TIME_EVENT_CMD), 1650 0, sizeof(cmd), &cmd)); 1651 mvmvif->csa_failed = true; 1652 mutex_unlock(&mvm->mutex); 1653 1654 /* If we're here, we can't support MLD */ 1655 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1656 } 1657 1658 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1659 { 1660 struct iwl_mvm_vif *mvmvif; 1661 struct ieee80211_vif *vif; 1662 1663 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1664 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1665 1666 /* Trigger disconnect (should clear the CSA state) */ 1667 ieee80211_chswitch_done(vif, false, 0); 1668 } 1669 1670 static u8 1671 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1672 { 1673 int data_start; 1674 int control_start; 1675 int bw; 1676 1677 if (chandef->width == NL80211_CHAN_WIDTH_320) 1678 bw = 320; 1679 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1680 bw = 160; 1681 else 1682 return 0; 1683 1684 /* data is bw wide so the start is half the width */ 1685 data_start = chandef->center_freq1 - bw / 2; 1686 /* control is 20Mhz width */ 1687 control_start = chandef->chan->center_freq - 10; 1688 1689 return (control_start - data_start) / 80; 1690 } 1691 1692 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1693 struct ieee80211_vif *vif) 1694 { 1695 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1696 int ret; 1697 1698 lockdep_assert_held(&mvm->mutex); 1699 1700 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1701 if (ret) { 1702 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1703 return ret; 1704 } 1705 1706 /* Only queue for this station is the mcast queue, 1707 * which shouldn't be in TFD mask anyway 1708 */ 1709 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1710 vif->type, 1711 IWL_STA_MULTICAST); 1712 } 1713 1714 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy, 1715 struct wiphy_work *wk) 1716 { 1717 struct iwl_mvm_vif *mvmvif = 1718 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work); 1719 struct iwl_mvm *mvm = mvmvif->mvm; 1720 struct ieee80211_vif *vif = 1721 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1722 1723 guard(mvm)(mvm); 1724 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION); 1725 } 1726 1727 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) 1728 { 1729 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif, 1730 mlo_int_scan_wk.work); 1731 struct ieee80211_vif *vif = 1732 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1733 1734 guard(mvm)(mvmvif->mvm); 1735 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif); 1736 } 1737 1738 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) 1739 { 1740 struct iwl_mvm_vif *mvmvif = 1741 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); 1742 struct iwl_mvm *mvm = mvmvif->mvm; 1743 struct ieee80211_vif *vif = 1744 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1745 1746 guard(mvm)(mvm); 1747 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); 1748 } 1749 1750 static void iwl_mvm_unblock_esr_tmp_non_bss(struct wiphy *wiphy, 1751 struct wiphy_work *wk) 1752 { 1753 struct iwl_mvm_vif *mvmvif = 1754 container_of(wk, struct iwl_mvm_vif, 1755 unblock_esr_tmp_non_bss_wk.work); 1756 struct iwl_mvm *mvm = mvmvif->mvm; 1757 struct ieee80211_vif *vif = 1758 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1759 1760 mutex_lock(&mvm->mutex); 1761 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TMP_NON_BSS); 1762 mutex_unlock(&mvm->mutex); 1763 } 1764 1765 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1766 { 1767 lockdep_assert_held(&mvm->mutex); 1768 1769 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1770 return; 1771 1772 INIT_DELAYED_WORK(&mvmvif->csa_work, 1773 iwl_mvm_channel_switch_disconnect_wk); 1774 1775 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk, 1776 iwl_mvm_prevent_esr_done_wk); 1777 1778 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, 1779 iwl_mvm_mlo_int_scan_wk); 1780 1781 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, 1782 iwl_mvm_unblock_esr_tpt); 1783 1784 wiphy_delayed_work_init(&mvmvif->unblock_esr_tmp_non_bss_wk, 1785 iwl_mvm_unblock_esr_tmp_non_bss); 1786 } 1787 1788 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1789 struct ieee80211_vif *vif) 1790 { 1791 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1792 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1793 int ret; 1794 int i; 1795 1796 mutex_lock(&mvm->mutex); 1797 1798 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1799 1800 mvmvif->mvm = mvm; 1801 1802 /* the first link always points to the default one */ 1803 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1804 mvmvif->deflink.active = 0; 1805 mvmvif->link[0] = &mvmvif->deflink; 1806 1807 vif->driver_flags = IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC; 1808 1809 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1810 if (ret) 1811 goto out; 1812 1813 /* 1814 * Not much to do here. The stack will not allow interface 1815 * types or combinations that we didn't advertise, so we 1816 * don't really have to check the types. 1817 */ 1818 1819 /* make sure that beacon statistics don't go backwards with FW reset */ 1820 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1821 for_each_mvm_vif_valid_link(mvmvif, i) 1822 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1823 mvmvif->link[i]->beacon_stats.num_beacons; 1824 1825 /* Allocate resources for the MAC context, and add it to the fw */ 1826 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1827 if (ret) 1828 goto out; 1829 1830 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1831 1832 /* Currently not much to do for NAN */ 1833 if (vif->type == NL80211_IFTYPE_NAN) { 1834 ret = 0; 1835 goto out; 1836 } 1837 1838 /* 1839 * The AP binding flow can be done only after the beacon 1840 * template is configured (which happens only in the mac80211 1841 * start_ap() flow), and adding the broadcast station can happen 1842 * only after the binding. 1843 * In addition, since modifying the MAC before adding a bcast 1844 * station is not allowed by the FW, delay the adding of MAC context to 1845 * the point where we can also add the bcast station. 1846 * In short: there's not much we can do at this point, other than 1847 * allocating resources :) 1848 */ 1849 if (vif->type == NL80211_IFTYPE_AP || 1850 vif->type == NL80211_IFTYPE_ADHOC) { 1851 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1852 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1853 ret = 0; 1854 goto out; 1855 } 1856 1857 mvmvif->features |= hw->netdev_features; 1858 1859 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1860 if (ret) 1861 goto out_unlock; 1862 1863 ret = iwl_mvm_power_update_mac(mvm); 1864 if (ret) 1865 goto out_remove_mac; 1866 1867 /* beacon filtering */ 1868 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1869 if (ret) 1870 goto out_remove_mac; 1871 1872 if (!mvm->bf_allowed_vif && 1873 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1874 mvm->bf_allowed_vif = mvmvif; 1875 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1876 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1877 } 1878 1879 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1880 mvm->p2p_device_vif = vif; 1881 1882 iwl_mvm_tcm_add_vif(mvm, vif); 1883 1884 if (vif->type == NL80211_IFTYPE_MONITOR) { 1885 mvm->monitor_on = true; 1886 mvm->monitor_p80 = 1887 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1888 } 1889 1890 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1891 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1892 1893 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1894 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1895 !mvm->csme_vif && mvm->mei_registered) { 1896 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1897 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1898 mvm->csme_vif = vif; 1899 } 1900 1901 out: 1902 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1903 vif->type == NL80211_IFTYPE_ADHOC)) 1904 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1905 1906 goto out_unlock; 1907 1908 out_remove_mac: 1909 mvmvif->deflink.phy_ctxt = NULL; 1910 iwl_mvm_mac_ctxt_remove(mvm, vif); 1911 out_unlock: 1912 mutex_unlock(&mvm->mutex); 1913 1914 return ret; 1915 } 1916 1917 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1918 struct ieee80211_vif *vif) 1919 { 1920 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1921 1922 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1923 /* 1924 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1925 * We assume here that all the packets sent to the OFFCHANNEL 1926 * queue are sent in ROC session. 1927 */ 1928 flush_work(&mvm->roc_done_wk); 1929 } 1930 1931 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1932 &mvmvif->prevent_esr_done_wk); 1933 1934 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1935 &mvmvif->mlo_int_scan_wk); 1936 1937 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 1938 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1939 &mvmvif->unblock_esr_tmp_non_bss_wk); 1940 1941 cancel_delayed_work_sync(&mvmvif->csa_work); 1942 } 1943 1944 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1945 struct ieee80211_vif *vif) 1946 { 1947 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1948 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1949 struct iwl_probe_resp_data *probe_data; 1950 1951 iwl_mvm_prepare_mac_removal(mvm, vif); 1952 1953 if (!(vif->type == NL80211_IFTYPE_AP || 1954 vif->type == NL80211_IFTYPE_ADHOC)) 1955 iwl_mvm_tcm_rm_vif(mvm, vif); 1956 1957 mutex_lock(&mvm->mutex); 1958 1959 if (vif == mvm->csme_vif) { 1960 iwl_mei_set_netdev(NULL); 1961 mvm->csme_vif = NULL; 1962 } 1963 1964 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1965 lockdep_is_held(&mvm->mutex)); 1966 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1967 if (probe_data) 1968 kfree_rcu(probe_data, rcu_head); 1969 1970 if (mvm->bf_allowed_vif == mvmvif) { 1971 mvm->bf_allowed_vif = NULL; 1972 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1973 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1974 } 1975 1976 if (vif->bss_conf.ftm_responder) 1977 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1978 1979 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1980 1981 /* 1982 * For AP/GO interface, the tear down of the resources allocated to the 1983 * interface is be handled as part of the stop_ap flow. 1984 */ 1985 if (vif->type == NL80211_IFTYPE_AP || 1986 vif->type == NL80211_IFTYPE_ADHOC) 1987 goto out; 1988 1989 iwl_mvm_power_update_mac(mvm); 1990 1991 /* Before the interface removal, mac80211 would cancel the ROC, and the 1992 * ROC worker would be scheduled if needed. The worker would be flushed 1993 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1994 * binding etc. so nothing needs to be done here. 1995 */ 1996 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1997 if (mvmvif->deflink.phy_ctxt) { 1998 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1999 mvmvif->deflink.phy_ctxt = NULL; 2000 } 2001 mvm->p2p_device_vif = NULL; 2002 } 2003 2004 iwl_mvm_mac_ctxt_remove(mvm, vif); 2005 2006 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 2007 2008 if (vif->type == NL80211_IFTYPE_MONITOR) 2009 mvm->monitor_on = false; 2010 2011 out: 2012 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 2013 if (vif->type == NL80211_IFTYPE_AP || 2014 vif->type == NL80211_IFTYPE_ADHOC) { 2015 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 2016 iwl_mvm_dealloc_bcast_sta(mvm, vif); 2017 } 2018 2019 mutex_unlock(&mvm->mutex); 2020 } 2021 2022 struct iwl_mvm_mc_iter_data { 2023 struct iwl_mvm *mvm; 2024 int port_id; 2025 }; 2026 2027 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 2028 struct ieee80211_vif *vif) 2029 { 2030 struct iwl_mvm_mc_iter_data *data = _data; 2031 struct iwl_mvm *mvm = data->mvm; 2032 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 2033 struct iwl_host_cmd hcmd = { 2034 .id = MCAST_FILTER_CMD, 2035 .flags = CMD_ASYNC, 2036 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 2037 }; 2038 int ret, len; 2039 2040 /* if we don't have free ports, mcast frames will be dropped */ 2041 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 2042 return; 2043 2044 if (vif->type != NL80211_IFTYPE_STATION || 2045 !vif->cfg.assoc) 2046 return; 2047 2048 cmd->port_id = data->port_id++; 2049 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 2050 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 2051 2052 hcmd.len[0] = len; 2053 hcmd.data[0] = cmd; 2054 2055 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2056 if (ret) 2057 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 2058 } 2059 2060 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 2061 { 2062 struct iwl_mvm_mc_iter_data iter_data = { 2063 .mvm = mvm, 2064 }; 2065 int ret; 2066 2067 lockdep_assert_held(&mvm->mutex); 2068 2069 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 2070 return; 2071 2072 ieee80211_iterate_active_interfaces_atomic( 2073 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2074 iwl_mvm_mc_iface_iterator, &iter_data); 2075 2076 /* 2077 * Send a (synchronous) ech command so that we wait for the 2078 * multiple asynchronous MCAST_FILTER_CMD commands sent by 2079 * the interface iterator. Otherwise, we might get here over 2080 * and over again (by userspace just sending a lot of these) 2081 * and the CPU can send them faster than the firmware can 2082 * process them. 2083 * Note that the CPU is still faster - but with this we'll 2084 * actually send fewer commands overall because the CPU will 2085 * not schedule the work in mac80211 as frequently if it's 2086 * still running when rescheduled (possibly multiple times). 2087 */ 2088 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2089 if (ret) 2090 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2091 } 2092 2093 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2094 struct netdev_hw_addr_list *mc_list) 2095 { 2096 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2097 struct iwl_mcast_filter_cmd *cmd; 2098 struct netdev_hw_addr *addr; 2099 int addr_count; 2100 bool pass_all; 2101 int len; 2102 2103 addr_count = netdev_hw_addr_list_count(mc_list); 2104 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2105 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2106 if (pass_all) 2107 addr_count = 0; 2108 2109 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2110 cmd = kzalloc(len, GFP_ATOMIC); 2111 if (!cmd) 2112 return 0; 2113 2114 if (pass_all) { 2115 cmd->pass_all = 1; 2116 return (u64)(unsigned long)cmd; 2117 } 2118 2119 netdev_hw_addr_list_for_each(addr, mc_list) { 2120 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2121 cmd->count, addr->addr); 2122 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2123 addr->addr, ETH_ALEN); 2124 cmd->count++; 2125 } 2126 2127 return (u64)(unsigned long)cmd; 2128 } 2129 2130 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2131 unsigned int changed_flags, 2132 unsigned int *total_flags, u64 multicast) 2133 { 2134 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2135 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2136 2137 guard(mvm)(mvm); 2138 2139 /* replace previous configuration */ 2140 kfree(mvm->mcast_filter_cmd); 2141 mvm->mcast_filter_cmd = cmd; 2142 2143 if (!cmd) 2144 goto out; 2145 2146 if (changed_flags & FIF_ALLMULTI) 2147 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2148 2149 if (cmd->pass_all) 2150 cmd->count = 0; 2151 2152 iwl_mvm_recalc_multicast(mvm); 2153 out: 2154 *total_flags = 0; 2155 } 2156 2157 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2158 struct ieee80211_vif *vif, 2159 unsigned int filter_flags, 2160 unsigned int changed_flags) 2161 { 2162 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2163 2164 /* We support only filter for probe requests */ 2165 if (!(changed_flags & FIF_PROBE_REQ)) 2166 return; 2167 2168 /* Supported only for p2p client interfaces */ 2169 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2170 !vif->p2p) 2171 return; 2172 2173 guard(mvm)(mvm); 2174 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2175 } 2176 2177 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2178 { 2179 struct iwl_mu_group_mgmt_cmd cmd = {}; 2180 2181 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2182 WLAN_MEMBERSHIP_LEN); 2183 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2184 WLAN_USER_POSITION_LEN); 2185 2186 return iwl_mvm_send_cmd_pdu(mvm, 2187 WIDE_ID(DATA_PATH_GROUP, 2188 UPDATE_MU_GROUPS_CMD), 2189 0, sizeof(cmd), &cmd); 2190 } 2191 2192 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2193 struct ieee80211_vif *vif) 2194 { 2195 if (vif->bss_conf.mu_mimo_owner) { 2196 struct iwl_mu_group_mgmt_notif *notif = _data; 2197 2198 /* 2199 * MU-MIMO Group Id action frame is little endian. We treat 2200 * the data received from firmware as if it came from the 2201 * action frame, so no conversion is needed. 2202 */ 2203 ieee80211_update_mu_groups(vif, 0, 2204 (u8 *)¬if->membership_status, 2205 (u8 *)¬if->user_position); 2206 } 2207 } 2208 2209 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2210 struct iwl_rx_cmd_buffer *rxb) 2211 { 2212 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2213 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2214 2215 ieee80211_iterate_active_interfaces_atomic( 2216 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2217 iwl_mvm_mu_mimo_iface_iterator, notif); 2218 } 2219 2220 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2221 { 2222 u8 byte_num = ppe_pos_bit / 8; 2223 u8 bit_num = ppe_pos_bit % 8; 2224 u8 residue_bits; 2225 u8 res; 2226 2227 if (bit_num <= 5) 2228 return (ppe[byte_num] >> bit_num) & 2229 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2230 2231 /* 2232 * If bit_num > 5, we have to combine bits with next byte. 2233 * Calculate how many bits we need to take from current byte (called 2234 * here "residue_bits"), and add them to bits from next byte. 2235 */ 2236 2237 residue_bits = 8 - bit_num; 2238 2239 res = (ppe[byte_num + 1] & 2240 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2241 residue_bits; 2242 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2243 2244 return res; 2245 } 2246 2247 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2248 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2249 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2250 bool inheritance) 2251 { 2252 int i; 2253 2254 /* 2255 * FW currently supports only nss == MAX_HE_SUPP_NSS 2256 * 2257 * If nss > MAX: we can ignore values we don't support 2258 * If nss < MAX: we can set zeros in other streams 2259 */ 2260 if (nss > MAX_HE_SUPP_NSS) { 2261 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2262 MAX_HE_SUPP_NSS); 2263 nss = MAX_HE_SUPP_NSS; 2264 } 2265 2266 for (i = 0; i < nss; i++) { 2267 u8 ru_index_tmp = ru_index_bitmap << 1; 2268 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2269 u8 bw; 2270 2271 for (bw = 0; 2272 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2273 bw++) { 2274 ru_index_tmp >>= 1; 2275 2276 /* 2277 * According to the 11be spec, if for a specific BW the PPE Thresholds 2278 * isn't present - it should inherit the thresholds from the last 2279 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2280 * this inheritance - continue in this case 2281 */ 2282 if (!(ru_index_tmp & 1)) { 2283 if (inheritance) 2284 goto set_thresholds; 2285 else 2286 continue; 2287 } 2288 2289 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2290 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2291 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2292 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2293 2294 set_thresholds: 2295 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2296 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2297 } 2298 } 2299 } 2300 2301 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2302 struct ieee80211_link_sta *link_sta, 2303 struct iwl_he_pkt_ext_v2 *pkt_ext, 2304 bool inheritance) 2305 { 2306 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2307 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2308 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2309 u8 ru_index_bitmap = 2310 u8_get_bits(*ppe, 2311 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2312 /* Starting after PPE header */ 2313 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2314 2315 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2316 inheritance); 2317 } 2318 2319 static int 2320 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2321 u8 nominal_padding) 2322 { 2323 int low_th = -1; 2324 int high_th = -1; 2325 int i; 2326 2327 /* all the macros are the same for EHT and HE */ 2328 switch (nominal_padding) { 2329 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2330 low_th = IWL_HE_PKT_EXT_NONE; 2331 high_th = IWL_HE_PKT_EXT_NONE; 2332 break; 2333 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2334 low_th = IWL_HE_PKT_EXT_BPSK; 2335 high_th = IWL_HE_PKT_EXT_NONE; 2336 break; 2337 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2338 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2339 low_th = IWL_HE_PKT_EXT_NONE; 2340 high_th = IWL_HE_PKT_EXT_BPSK; 2341 break; 2342 } 2343 2344 if (low_th < 0 || high_th < 0) 2345 return -EINVAL; 2346 2347 /* Set the PPE thresholds accordingly */ 2348 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2349 u8 bw; 2350 2351 for (bw = 0; 2352 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2353 bw++) { 2354 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2355 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2356 } 2357 } 2358 2359 return 0; 2360 } 2361 2362 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2363 u8 nominal_padding) 2364 { 2365 int i; 2366 2367 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2368 u8 bw; 2369 2370 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2371 bw++) { 2372 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2373 2374 if (nominal_padding > 2375 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2376 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2377 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2378 else if (nominal_padding == 2379 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2380 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2381 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2382 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2383 } 2384 } 2385 } 2386 2387 /* Set the pkt_ext field according to PPE Thresholds element */ 2388 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2389 struct ieee80211_link_sta *link_sta, 2390 struct iwl_he_pkt_ext_v2 *pkt_ext) 2391 { 2392 u8 nominal_padding; 2393 int i, ret = 0; 2394 2395 if (WARN_ON(!link_sta)) 2396 return -EINVAL; 2397 2398 /* Initialize the PPE thresholds to "None" (7), as described in Table 2399 * 9-262ac of 80211.ax/D3.0. 2400 */ 2401 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2402 sizeof(struct iwl_he_pkt_ext_v2)); 2403 2404 if (link_sta->eht_cap.has_eht) { 2405 nominal_padding = 2406 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2407 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2408 2409 /* If PPE Thresholds exists, parse them into a FW-familiar 2410 * format. 2411 */ 2412 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2413 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2414 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2415 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2416 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2417 u8 ru_index_bitmap = 2418 u16_get_bits(*ppe, 2419 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2420 /* Starting after PPE header */ 2421 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2422 2423 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2424 ppe, ppe_pos_bit, true); 2425 /* EHT PPE Thresholds doesn't exist - set the API according to 2426 * HE PPE Tresholds 2427 */ 2428 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2429 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2430 /* Even though HE Capabilities IE doesn't contain PPE 2431 * Thresholds for BW 320Mhz, thresholds for this BW will 2432 * be filled in with the same values as 160Mhz, due to 2433 * the inheritance, as required. 2434 */ 2435 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2436 true); 2437 2438 /* According to the requirements, for MCSs 12-13 the 2439 * maximum value between HE PPE Threshold and Common 2440 * Nominal Packet Padding needs to be taken 2441 */ 2442 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2443 2444 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2445 * take the Thresholds from Common Nominal Packet Padding field 2446 */ 2447 } else { 2448 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2449 nominal_padding); 2450 } 2451 } else if (link_sta->he_cap.has_he) { 2452 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2453 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2454 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2455 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2456 false); 2457 /* PPE Thresholds doesn't exist - set the API PPE values 2458 * according to Common Nominal Packet Padding field. 2459 */ 2460 } else { 2461 nominal_padding = 2462 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2463 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2464 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2465 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2466 nominal_padding); 2467 } 2468 } 2469 2470 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2471 int bw; 2472 2473 for (bw = 0; 2474 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2475 bw++) { 2476 u8 *qam_th = 2477 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2478 2479 IWL_DEBUG_HT(mvm, 2480 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2481 i, bw, qam_th[0], qam_th[1]); 2482 } 2483 } 2484 return ret; 2485 } 2486 2487 /* 2488 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2489 * is enabled or not 2490 */ 2491 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2492 const struct iwl_mvm_vif_link_info *link_info, 2493 struct iwl_he_backoff_conf *trig_based_txf) 2494 { 2495 int i; 2496 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2497 bool mu_edca_enabled = true; 2498 2499 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2500 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2501 &link_info->queue_params[i].mu_edca_param_rec; 2502 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2503 2504 if (!link_info->queue_params[i].mu_edca) { 2505 mu_edca_enabled = false; 2506 break; 2507 } 2508 2509 trig_based_txf[ac].cwmin = 2510 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2511 trig_based_txf[ac].cwmax = 2512 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2513 trig_based_txf[ac].aifsn = 2514 cpu_to_le16(mu_edca->aifsn & 0xf); 2515 trig_based_txf[ac].mu_time = 2516 cpu_to_le16(mu_edca->mu_edca_timer); 2517 } 2518 2519 return mu_edca_enabled; 2520 } 2521 2522 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2523 { 2524 const struct ieee80211_supported_band *sband; 2525 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2526 2527 /* This capability is the same for all bands, 2528 * so take it from one of them. 2529 */ 2530 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2531 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2532 2533 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2534 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2535 } 2536 2537 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2538 struct ieee80211_link_sta *link_sta) 2539 { 2540 u8 *mac_cap_info = 2541 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2542 __le32 htc_flags = 0; 2543 2544 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2545 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2546 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2547 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2548 u8 link_adap = 2549 ((mac_cap_info[2] & 2550 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2551 (mac_cap_info[1] & 2552 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2553 2554 if (link_adap == 2) 2555 htc_flags |= 2556 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2557 else if (link_adap == 3) 2558 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2559 } 2560 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2561 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2562 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2563 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2564 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2565 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2566 2567 return htc_flags; 2568 } 2569 2570 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2571 struct ieee80211_vif *vif, u8 sta_id) 2572 { 2573 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2574 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2575 .sta_id = sta_id, 2576 .tid_limit = IWL_MAX_TID_COUNT, 2577 .bss_color = vif->bss_conf.he_bss_color.color, 2578 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2579 .frame_time_rts_th = 2580 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2581 }; 2582 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2583 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2584 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2585 int size; 2586 struct ieee80211_sta *sta; 2587 u32 flags; 2588 int i; 2589 void *cmd; 2590 2591 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2592 ver = 1; 2593 2594 switch (ver) { 2595 case 1: 2596 /* same layout as v2 except some data at the end */ 2597 cmd = &sta_ctxt_cmd_v2; 2598 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2599 break; 2600 case 2: 2601 cmd = &sta_ctxt_cmd_v2; 2602 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2603 break; 2604 case 3: 2605 cmd = &sta_ctxt_cmd; 2606 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2607 break; 2608 default: 2609 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2610 return; 2611 } 2612 2613 rcu_read_lock(); 2614 2615 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2616 if (IS_ERR_OR_NULL(sta)) { 2617 rcu_read_unlock(); 2618 WARN(1, "Can't find STA to configure HE\n"); 2619 return; 2620 } 2621 2622 if (!sta->deflink.he_cap.has_he) { 2623 rcu_read_unlock(); 2624 return; 2625 } 2626 2627 flags = 0; 2628 2629 /* Block 26-tone RU OFDMA transmissions */ 2630 if (mvmvif->deflink.he_ru_2mhz_block) 2631 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2632 2633 /* HTC flags */ 2634 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2635 2636 /* PPE Thresholds */ 2637 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2638 flags |= STA_CTXT_HE_PACKET_EXT; 2639 2640 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2641 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2642 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2643 2644 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2645 IEEE80211_HE_MAC_CAP2_ACK_EN) 2646 flags |= STA_CTXT_HE_ACK_ENABLED; 2647 2648 rcu_read_unlock(); 2649 2650 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2651 &sta_ctxt_cmd.trig_based_txf[0])) 2652 flags |= STA_CTXT_HE_MU_EDCA_CW; 2653 2654 if (vif->bss_conf.uora_exists) { 2655 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2656 2657 sta_ctxt_cmd.rand_alloc_ecwmin = 2658 vif->bss_conf.uora_ocw_range & 0x7; 2659 sta_ctxt_cmd.rand_alloc_ecwmax = 2660 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2661 } 2662 2663 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2664 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2665 2666 if (vif->bss_conf.nontransmitted) { 2667 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2668 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2669 vif->bss_conf.transmitter_bssid); 2670 sta_ctxt_cmd.max_bssid_indicator = 2671 vif->bss_conf.bssid_indicator; 2672 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2673 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2674 sta_ctxt_cmd.profile_periodicity = 2675 vif->bss_conf.profile_periodicity; 2676 } 2677 2678 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2679 2680 if (ver < 3) { 2681 /* fields before pkt_ext */ 2682 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2683 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2684 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2685 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2686 2687 /* pkt_ext */ 2688 for (i = 0; 2689 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2690 i++) { 2691 u8 bw; 2692 2693 for (bw = 0; 2694 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2695 bw++) { 2696 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2697 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2698 2699 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2700 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2701 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2702 } 2703 } 2704 2705 /* fields after pkt_ext */ 2706 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2707 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2708 sizeof(sta_ctxt_cmd_v2) - 2709 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2710 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2711 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2712 (u8 *)&sta_ctxt_cmd + 2713 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2714 sizeof(sta_ctxt_cmd) - 2715 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2716 sta_ctxt_cmd_v2.reserved3 = 0; 2717 } 2718 2719 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2720 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2721 } 2722 2723 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2724 u32 duration_override, unsigned int link_id) 2725 { 2726 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2727 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2728 2729 if (duration_override > duration) 2730 duration = duration_override; 2731 2732 /* Try really hard to protect the session and hear a beacon 2733 * The new session protection command allows us to protect the 2734 * session for a much longer time since the firmware will internally 2735 * create two events: a 300TU one with a very high priority that 2736 * won't be fragmented which should be enough for 99% of the cases, 2737 * and another one (which we configure here to be 900TU long) which 2738 * will have a slightly lower priority, but more importantly, can be 2739 * fragmented so that it'll allow other activities to run. 2740 */ 2741 if (fw_has_capa(&mvm->fw->ucode_capa, 2742 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2743 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2744 min_duration, false, 2745 link_id); 2746 else 2747 iwl_mvm_protect_session(mvm, vif, duration, 2748 min_duration, 500, false); 2749 } 2750 2751 /* Handle association common part to MLD and non-MLD modes */ 2752 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2753 struct ieee80211_vif *vif, 2754 u64 changes) 2755 { 2756 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2757 int ret; 2758 int link_id; 2759 2760 /* The firmware tracks the MU-MIMO group on its own. 2761 * However, on HW restart we should restore this data. 2762 */ 2763 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2764 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2765 ret = iwl_mvm_update_mu_groups(mvm, vif); 2766 if (ret) 2767 IWL_ERR(mvm, 2768 "failed to update VHT MU_MIMO groups\n"); 2769 } 2770 2771 iwl_mvm_recalc_multicast(mvm); 2772 2773 /* reset rssi values */ 2774 for_each_mvm_vif_valid_link(mvmvif, link_id) 2775 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2776 2777 iwl_mvm_bt_coex_vif_change(mvm); 2778 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2779 IEEE80211_SMPS_AUTOMATIC); 2780 if (fw_has_capa(&mvm->fw->ucode_capa, 2781 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2782 iwl_mvm_config_scan(mvm); 2783 } 2784 2785 /* Execute the common part for MLD and non-MLD modes */ 2786 void 2787 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2788 struct ieee80211_vif *vif, 2789 struct ieee80211_bss_conf *link_conf, 2790 u64 changes) 2791 { 2792 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2793 int ret; 2794 2795 if (changes & BSS_CHANGED_BEACON_INFO) { 2796 /* We received a beacon from the associated AP so 2797 * remove the session protection. 2798 */ 2799 iwl_mvm_stop_session_protection(mvm, vif); 2800 2801 iwl_mvm_sf_update(mvm, vif, false); 2802 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2803 } 2804 2805 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2806 /* Send power command on every beacon change, 2807 * because we may have not enabled beacon abort yet. 2808 */ 2809 BSS_CHANGED_BEACON_INFO)) { 2810 ret = iwl_mvm_power_update_mac(mvm); 2811 if (ret) 2812 IWL_ERR(mvm, "failed to update power mode\n"); 2813 } 2814 2815 if (changes & BSS_CHANGED_CQM) { 2816 struct iwl_mvm_vif_link_info *link_info = 2817 mvmvif->link[link_conf->link_id]; 2818 2819 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2820 if (link_info) 2821 link_info->bf_data.last_cqm_event = 0; 2822 2823 if (mvmvif->bf_enabled) { 2824 /* FIXME: need to update per link when FW API will 2825 * support it 2826 */ 2827 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2828 if (ret) 2829 IWL_ERR(mvm, 2830 "failed to update CQM thresholds\n"); 2831 } 2832 } 2833 2834 if (changes & BSS_CHANGED_BANDWIDTH) 2835 iwl_mvm_update_link_smps(vif, link_conf); 2836 2837 if (changes & BSS_CHANGED_TPE) { 2838 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2839 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2840 link_conf, 2841 false); 2842 } 2843 } 2844 2845 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2846 struct ieee80211_vif *vif, 2847 struct ieee80211_bss_conf *bss_conf, 2848 u64 changes) 2849 { 2850 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2851 int ret; 2852 int i; 2853 2854 /* 2855 * Re-calculate the tsf id, as the leader-follower relations depend 2856 * on the beacon interval, which was not known when the station 2857 * interface was added. 2858 */ 2859 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2860 if ((vif->bss_conf.he_support && 2861 !iwlwifi_mod_params.disable_11ax)) 2862 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2863 2864 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2865 } 2866 2867 /* Update MU EDCA params */ 2868 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2869 vif->cfg.assoc && 2870 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2871 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2872 2873 /* 2874 * If we're not associated yet, take the (new) BSSID before associating 2875 * so the firmware knows. If we're already associated, then use the old 2876 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2877 * branch for disassociation below. 2878 */ 2879 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2880 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2881 2882 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2883 if (ret) 2884 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2885 2886 /* after sending it once, adopt mac80211 data */ 2887 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2888 mvmvif->associated = vif->cfg.assoc; 2889 2890 if (changes & BSS_CHANGED_ASSOC) { 2891 if (vif->cfg.assoc) { 2892 mvmvif->session_prot_connection_loss = false; 2893 2894 /* clear statistics to get clean beacon counter */ 2895 iwl_mvm_request_statistics(mvm, true); 2896 for_each_mvm_vif_valid_link(mvmvif, i) 2897 memset(&mvmvif->link[i]->beacon_stats, 0, 2898 sizeof(mvmvif->link[i]->beacon_stats)); 2899 2900 /* add quota for this interface */ 2901 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2902 if (ret) { 2903 IWL_ERR(mvm, "failed to update quotas\n"); 2904 return; 2905 } 2906 2907 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2908 &mvm->status) && 2909 !fw_has_capa(&mvm->fw->ucode_capa, 2910 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2911 /* 2912 * If we're restarting then the firmware will 2913 * obviously have lost synchronisation with 2914 * the AP. It will attempt to synchronise by 2915 * itself, but we can make it more reliable by 2916 * scheduling a session protection time event. 2917 * 2918 * The firmware needs to receive a beacon to 2919 * catch up with synchronisation, use 110% of 2920 * the beacon interval. 2921 * 2922 * Set a large maximum delay to allow for more 2923 * than a single interface. 2924 * 2925 * For new firmware versions, rely on the 2926 * firmware. This is relevant for DCM scenarios 2927 * only anyway. 2928 */ 2929 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2930 iwl_mvm_protect_session(mvm, vif, dur, dur, 2931 5 * dur, false); 2932 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2933 &mvm->status) && 2934 !vif->bss_conf.dtim_period) { 2935 /* 2936 * If we're not restarting and still haven't 2937 * heard a beacon (dtim period unknown) then 2938 * make sure we still have enough minimum time 2939 * remaining in the time event, since the auth 2940 * might actually have taken quite a while 2941 * (especially for SAE) and so the remaining 2942 * time could be small without us having heard 2943 * a beacon yet. 2944 */ 2945 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2946 } 2947 2948 iwl_mvm_sf_update(mvm, vif, false); 2949 iwl_mvm_power_vif_assoc(mvm, vif); 2950 if (vif->p2p) { 2951 iwl_mvm_update_smps(mvm, vif, 2952 IWL_MVM_SMPS_REQ_PROT, 2953 IEEE80211_SMPS_DYNAMIC, 0); 2954 } 2955 } else if (mvmvif->deflink.ap_sta_id != IWL_INVALID_STA) { 2956 iwl_mvm_mei_host_disassociated(mvm); 2957 /* 2958 * If update fails - SF might be running in associated 2959 * mode while disassociated - which is forbidden. 2960 */ 2961 ret = iwl_mvm_sf_update(mvm, vif, false); 2962 WARN_ONCE(ret && 2963 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2964 &mvm->status), 2965 "Failed to update SF upon disassociation\n"); 2966 2967 /* remove quota for this interface */ 2968 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2969 if (ret) 2970 IWL_ERR(mvm, "failed to update quotas\n"); 2971 2972 /* this will take the cleared BSSID from bss_conf */ 2973 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2974 if (ret) 2975 IWL_ERR(mvm, 2976 "failed to update MAC %pM (clear after unassoc)\n", 2977 vif->addr); 2978 } 2979 2980 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2981 } 2982 2983 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2984 changes); 2985 } 2986 2987 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2988 struct ieee80211_vif *vif, 2989 int *ret) 2990 { 2991 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2992 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2993 int i; 2994 2995 lockdep_assert_held(&mvm->mutex); 2996 2997 mvmvif->ap_assoc_sta_count = 0; 2998 2999 /* must be set before quota calculations */ 3000 mvmvif->ap_ibss_active = true; 3001 3002 /* send all the early keys to the device now */ 3003 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3004 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 3005 3006 if (!key) 3007 continue; 3008 3009 mvmvif->ap_early_keys[i] = NULL; 3010 3011 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 3012 if (*ret) 3013 return true; 3014 } 3015 3016 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3017 iwl_mvm_vif_set_low_latency(mvmvif, true, 3018 LOW_LATENCY_VIF_TYPE); 3019 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 3020 } 3021 3022 /* power updated needs to be done before quotas */ 3023 iwl_mvm_power_update_mac(mvm); 3024 3025 return false; 3026 } 3027 3028 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 3029 struct ieee80211_vif *vif, 3030 struct ieee80211_bss_conf *link_conf) 3031 { 3032 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3033 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3034 int ret; 3035 3036 mutex_lock(&mvm->mutex); 3037 3038 /* 3039 * Re-calculate the tsf id, as the leader-follower relations depend on 3040 * the beacon interval, which was not known when the AP interface 3041 * was added. 3042 */ 3043 if (vif->type == NL80211_IFTYPE_AP) 3044 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 3045 3046 /* For older devices need to send beacon template before adding mac 3047 * context. For the newer, the beacon is a resource that belongs to a 3048 * MAC, so need to send beacon template after adding the mac. 3049 */ 3050 if (mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 3051 /* Add the mac context */ 3052 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3053 if (ret) 3054 goto out_unlock; 3055 3056 /* Send the beacon template */ 3057 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3058 if (ret) 3059 goto out_unlock; 3060 } else { 3061 /* Send the beacon template */ 3062 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3063 if (ret) 3064 goto out_unlock; 3065 3066 /* Add the mac context */ 3067 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3068 if (ret) 3069 goto out_unlock; 3070 } 3071 3072 /* Perform the binding */ 3073 ret = iwl_mvm_binding_add_vif(mvm, vif); 3074 if (ret) 3075 goto out_remove; 3076 3077 /* 3078 * This is not very nice, but the simplest: 3079 * For older FWs adding the mcast sta before the bcast station may 3080 * cause assert 0x2b00. 3081 * This is fixed in later FW so make the order of removal depend on 3082 * the TLV 3083 */ 3084 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3085 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3086 if (ret) 3087 goto out_unbind; 3088 /* 3089 * Send the bcast station. At this stage the TBTT and DTIM time 3090 * events are added and applied to the scheduler 3091 */ 3092 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3093 if (ret) { 3094 iwl_mvm_rm_mcast_sta(mvm, vif); 3095 goto out_unbind; 3096 } 3097 } else { 3098 /* 3099 * Send the bcast station. At this stage the TBTT and DTIM time 3100 * events are added and applied to the scheduler 3101 */ 3102 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3103 if (ret) 3104 goto out_unbind; 3105 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3106 if (ret) { 3107 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3108 goto out_unbind; 3109 } 3110 } 3111 3112 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3113 goto out_failed; 3114 3115 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3116 if (ret) 3117 goto out_failed; 3118 3119 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3120 if (vif->p2p && mvm->p2p_device_vif) 3121 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3122 3123 iwl_mvm_bt_coex_vif_change(mvm); 3124 3125 /* we don't support TDLS during DCM */ 3126 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3127 iwl_mvm_teardown_tdls_peers(mvm); 3128 3129 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3130 3131 goto out_unlock; 3132 3133 out_failed: 3134 iwl_mvm_power_update_mac(mvm); 3135 mvmvif->ap_ibss_active = false; 3136 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3137 iwl_mvm_rm_mcast_sta(mvm, vif); 3138 out_unbind: 3139 iwl_mvm_binding_remove_vif(mvm, vif); 3140 out_remove: 3141 iwl_mvm_mac_ctxt_remove(mvm, vif); 3142 out_unlock: 3143 mutex_unlock(&mvm->mutex); 3144 return ret; 3145 } 3146 3147 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3148 struct ieee80211_vif *vif, 3149 struct ieee80211_bss_conf *link_conf) 3150 { 3151 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3152 } 3153 3154 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3155 struct ieee80211_vif *vif) 3156 { 3157 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3158 } 3159 3160 /* Common part for MLD and non-MLD ops */ 3161 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3162 struct ieee80211_vif *vif) 3163 { 3164 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3165 3166 lockdep_assert_held(&mvm->mutex); 3167 3168 iwl_mvm_prepare_mac_removal(mvm, vif); 3169 3170 /* Handle AP stop while in CSA */ 3171 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3172 iwl_mvm_remove_time_event(mvm, mvmvif, 3173 &mvmvif->time_event_data); 3174 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3175 mvmvif->csa_countdown = false; 3176 } 3177 3178 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3179 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3180 mvm->csa_tx_block_bcn_timeout = 0; 3181 } 3182 3183 mvmvif->ap_ibss_active = false; 3184 mvm->ap_last_beacon_gp2 = 0; 3185 3186 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3187 iwl_mvm_vif_set_low_latency(mvmvif, false, 3188 LOW_LATENCY_VIF_TYPE); 3189 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3190 } 3191 3192 iwl_mvm_bt_coex_vif_change(mvm); 3193 } 3194 3195 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3196 struct ieee80211_vif *vif, 3197 struct ieee80211_bss_conf *link_conf) 3198 { 3199 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3200 3201 guard(mvm)(mvm); 3202 3203 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3204 3205 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3206 if (vif->p2p && mvm->p2p_device_vif) 3207 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3208 3209 iwl_mvm_update_quotas(mvm, false, NULL); 3210 3211 iwl_mvm_ftm_responder_clear(mvm, vif); 3212 3213 /* 3214 * This is not very nice, but the simplest: 3215 * For older FWs removing the mcast sta before the bcast station may 3216 * cause assert 0x2b00. 3217 * This is fixed in later FW (which will stop beaconing when removing 3218 * bcast station). 3219 * So make the order of removal depend on the TLV 3220 */ 3221 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3222 iwl_mvm_rm_mcast_sta(mvm, vif); 3223 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3224 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3225 iwl_mvm_rm_mcast_sta(mvm, vif); 3226 iwl_mvm_binding_remove_vif(mvm, vif); 3227 3228 iwl_mvm_power_update_mac(mvm); 3229 3230 iwl_mvm_mac_ctxt_remove(mvm, vif); 3231 } 3232 3233 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3234 struct ieee80211_vif *vif, 3235 struct ieee80211_bss_conf *link_conf) 3236 { 3237 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3238 } 3239 3240 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3241 struct ieee80211_vif *vif) 3242 { 3243 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3244 } 3245 3246 static void 3247 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3248 struct ieee80211_vif *vif, 3249 struct ieee80211_bss_conf *bss_conf, 3250 u64 changes) 3251 { 3252 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3253 3254 /* Changes will be applied when the AP/IBSS is started */ 3255 if (!mvmvif->ap_ibss_active) 3256 return; 3257 3258 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3259 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3260 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3261 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3262 3263 /* Need to send a new beacon template to the FW */ 3264 if (changes & BSS_CHANGED_BEACON && 3265 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3266 IWL_WARN(mvm, "Failed updating beacon data\n"); 3267 3268 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3269 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3270 3271 if (ret) 3272 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3273 ret); 3274 } 3275 3276 } 3277 3278 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3279 struct ieee80211_vif *vif, 3280 struct ieee80211_bss_conf *bss_conf, 3281 u64 changes) 3282 { 3283 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3284 3285 guard(mvm)(mvm); 3286 3287 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3288 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3289 3290 switch (vif->type) { 3291 case NL80211_IFTYPE_STATION: 3292 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3293 break; 3294 case NL80211_IFTYPE_AP: 3295 case NL80211_IFTYPE_ADHOC: 3296 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3297 break; 3298 case NL80211_IFTYPE_MONITOR: 3299 if (changes & BSS_CHANGED_MU_GROUPS) 3300 iwl_mvm_update_mu_groups(mvm, vif); 3301 break; 3302 default: 3303 /* shouldn't happen */ 3304 WARN_ON_ONCE(1); 3305 } 3306 3307 if (changes & BSS_CHANGED_TXPOWER) { 3308 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3309 bss_conf->txpower); 3310 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower); 3311 } 3312 } 3313 3314 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3315 struct ieee80211_scan_request *hw_req) 3316 { 3317 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3318 3319 if (hw_req->req.n_channels == 0 || 3320 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3321 return -EINVAL; 3322 3323 guard(mvm)(mvm); 3324 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3325 } 3326 3327 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3328 struct ieee80211_vif *vif) 3329 { 3330 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3331 3332 guard(mvm)(mvm); 3333 3334 /* Due to a race condition, it's possible that mac80211 asks 3335 * us to stop a hw_scan when it's already stopped. This can 3336 * happen, for instance, if we stopped the scan ourselves, 3337 * called ieee80211_scan_completed() and the userspace called 3338 * cancel scan scan before ieee80211_scan_work() could run. 3339 * To handle that, simply return if the scan is not running. 3340 */ 3341 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3342 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3343 } 3344 3345 void 3346 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3347 struct ieee80211_sta *sta, u16 tids, 3348 int num_frames, 3349 enum ieee80211_frame_release_type reason, 3350 bool more_data) 3351 { 3352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3353 3354 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3355 3356 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3357 tids, more_data, false); 3358 } 3359 3360 void 3361 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3362 struct ieee80211_sta *sta, u16 tids, 3363 int num_frames, 3364 enum ieee80211_frame_release_type reason, 3365 bool more_data) 3366 { 3367 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3368 3369 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3370 3371 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3372 tids, more_data, true); 3373 } 3374 3375 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3376 enum sta_notify_cmd cmd, 3377 struct ieee80211_sta *sta) 3378 { 3379 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3380 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3381 unsigned long txqs = 0, tids = 0; 3382 int tid; 3383 3384 /* 3385 * If we have TVQM then we get too high queue numbers - luckily 3386 * we really shouldn't get here with that because such hardware 3387 * should have firmware supporting buffer station offload. 3388 */ 3389 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3390 return; 3391 3392 spin_lock_bh(&mvmsta->lock); 3393 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3394 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3395 3396 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3397 continue; 3398 3399 __set_bit(tid_data->txq_id, &txqs); 3400 3401 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3402 continue; 3403 3404 __set_bit(tid, &tids); 3405 } 3406 3407 switch (cmd) { 3408 case STA_NOTIFY_SLEEP: 3409 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3410 ieee80211_sta_set_buffered(sta, tid, true); 3411 3412 if (txqs) 3413 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3414 /* 3415 * The fw updates the STA to be asleep. Tx packets on the Tx 3416 * queues to this station will not be transmitted. The fw will 3417 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3418 */ 3419 break; 3420 case STA_NOTIFY_AWAKE: 3421 if (WARN_ON(mvmsta->deflink.sta_id == IWL_INVALID_STA)) 3422 break; 3423 3424 if (txqs) 3425 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3426 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3427 break; 3428 default: 3429 break; 3430 } 3431 spin_unlock_bh(&mvmsta->lock); 3432 } 3433 3434 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3435 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3436 { 3437 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3438 } 3439 3440 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3441 { 3442 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3443 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3444 struct ieee80211_sta *sta; 3445 struct iwl_mvm_sta *mvmsta; 3446 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3447 3448 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3449 return; 3450 3451 rcu_read_lock(); 3452 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3453 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3454 rcu_read_unlock(); 3455 return; 3456 } 3457 3458 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3459 3460 if (!mvmsta->vif || 3461 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3462 rcu_read_unlock(); 3463 return; 3464 } 3465 3466 if (mvmsta->sleeping != sleeping) { 3467 mvmsta->sleeping = sleeping; 3468 __iwl_mvm_mac_sta_notify(mvm->hw, 3469 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3470 sta); 3471 ieee80211_sta_ps_transition(sta, sleeping); 3472 } 3473 3474 if (sleeping) { 3475 switch (notif->type) { 3476 case IWL_MVM_PM_EVENT_AWAKE: 3477 case IWL_MVM_PM_EVENT_ASLEEP: 3478 break; 3479 case IWL_MVM_PM_EVENT_UAPSD: 3480 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3481 break; 3482 case IWL_MVM_PM_EVENT_PS_POLL: 3483 ieee80211_sta_pspoll(sta); 3484 break; 3485 default: 3486 break; 3487 } 3488 } 3489 3490 rcu_read_unlock(); 3491 } 3492 3493 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3494 struct ieee80211_vif *vif, 3495 struct ieee80211_sta *sta) 3496 { 3497 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3498 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3499 unsigned int link_id; 3500 3501 lockdep_assert_wiphy(mvm->hw->wiphy); 3502 3503 /* 3504 * This is called before mac80211 does RCU synchronisation, 3505 * so here we already invalidate our internal RCU-protected 3506 * station pointer. The rest of the code will thus no longer 3507 * be able to find the station this way, and we don't rely 3508 * on further RCU synchronisation after the sta_state() 3509 * callback deleted the station. 3510 * Since there's mvm->mutex here, no need to have RCU lock for 3511 * mvm_sta->link access. 3512 */ 3513 guard(mvm)(mvm); 3514 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3515 struct iwl_mvm_link_sta *link_sta; 3516 u32 sta_id; 3517 3518 if (!mvm_sta->link[link_id]) 3519 continue; 3520 3521 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3522 lockdep_is_held(&mvm->mutex)); 3523 sta_id = link_sta->sta_id; 3524 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3525 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3526 ERR_PTR(-ENOENT)); 3527 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3528 } 3529 } 3530 } 3531 3532 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3533 const u8 *bssid) 3534 { 3535 int i; 3536 3537 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3538 struct iwl_mvm_tcm_mac *mdata; 3539 3540 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3541 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3542 mdata->opened_rx_ba_sessions = false; 3543 } 3544 3545 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3546 return; 3547 3548 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3549 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3550 return; 3551 } 3552 3553 if (!vif->p2p && 3554 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3555 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3556 return; 3557 } 3558 3559 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3560 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3561 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3562 return; 3563 } 3564 } 3565 3566 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3567 } 3568 3569 static void 3570 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3571 struct ieee80211_vif *vif, u8 *peer_addr, 3572 enum nl80211_tdls_operation action) 3573 { 3574 struct iwl_fw_dbg_trigger_tlv *trig; 3575 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3576 3577 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3578 FW_DBG_TRIGGER_TDLS); 3579 if (!trig) 3580 return; 3581 3582 tdls_trig = (void *)trig->data; 3583 3584 if (!(tdls_trig->action_bitmap & BIT(action))) 3585 return; 3586 3587 if (tdls_trig->peer_mode && 3588 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3589 return; 3590 3591 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3592 "TDLS event occurred, peer %pM, action %d", 3593 peer_addr, action); 3594 } 3595 3596 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3597 bool tolerated; 3598 }; 3599 3600 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3601 struct cfg80211_bss *bss, 3602 void *_data) 3603 { 3604 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3605 const struct cfg80211_bss_ies *ies; 3606 const struct element *elem; 3607 3608 rcu_read_lock(); 3609 ies = rcu_dereference(bss->ies); 3610 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3611 ies->len); 3612 3613 if (!elem || elem->datalen < 10 || 3614 !(elem->data[10] & 3615 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3616 data->tolerated = false; 3617 } 3618 rcu_read_unlock(); 3619 } 3620 3621 static void 3622 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3623 struct ieee80211_vif *vif, 3624 unsigned int link_id, 3625 struct ieee80211_bss_conf *link_conf) 3626 { 3627 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3628 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3629 .tolerated = true, 3630 }; 3631 3632 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3633 !mvmvif->link[link_id])) 3634 return; 3635 3636 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3637 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3638 return; 3639 } 3640 3641 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3642 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3643 &iter_data); 3644 3645 /* 3646 * If there is at least one AP on radar channel that cannot 3647 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3648 */ 3649 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3650 } 3651 3652 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3653 struct ieee80211_vif *vif) 3654 { 3655 struct ieee80211_supported_band *sband; 3656 const struct ieee80211_sta_he_cap *he_cap; 3657 3658 if (vif->type != NL80211_IFTYPE_STATION) 3659 return; 3660 3661 if (!mvm->cca_40mhz_workaround) 3662 return; 3663 3664 /* decrement and check that we reached zero */ 3665 mvm->cca_40mhz_workaround--; 3666 if (mvm->cca_40mhz_workaround) 3667 return; 3668 3669 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3670 3671 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3672 3673 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3674 3675 if (he_cap) { 3676 /* we know that ours is writable */ 3677 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3678 3679 he->he_cap_elem.phy_cap_info[0] |= 3680 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3681 } 3682 } 3683 3684 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3685 struct ieee80211_vif *vif, 3686 struct iwl_mvm_sta *mvm_sta) 3687 { 3688 #if IS_ENABLED(CONFIG_IWLMEI) 3689 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3690 struct iwl_mei_conn_info conn_info = { 3691 .ssid_len = vif->cfg.ssid_len, 3692 }; 3693 3694 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3695 return; 3696 3697 if (!mvm->mei_registered) 3698 return; 3699 3700 /* FIXME: MEI needs to be updated for MLO */ 3701 if (!vif->bss_conf.chanreq.oper.chan) 3702 return; 3703 3704 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3705 3706 switch (mvm_sta->pairwise_cipher) { 3707 case WLAN_CIPHER_SUITE_TKIP: 3708 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3709 break; 3710 case WLAN_CIPHER_SUITE_CCMP: 3711 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3712 break; 3713 case WLAN_CIPHER_SUITE_GCMP: 3714 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3715 break; 3716 case WLAN_CIPHER_SUITE_GCMP_256: 3717 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3718 break; 3719 case 0: 3720 /* open profile */ 3721 break; 3722 default: 3723 /* cipher not supported, don't send anything to iwlmei */ 3724 return; 3725 } 3726 3727 switch (mvmvif->rekey_data.akm) { 3728 case WLAN_AKM_SUITE_SAE & 0xff: 3729 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3730 break; 3731 case WLAN_AKM_SUITE_PSK & 0xff: 3732 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3733 break; 3734 case WLAN_AKM_SUITE_8021X & 0xff: 3735 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3736 break; 3737 case 0: 3738 /* open profile */ 3739 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3740 break; 3741 default: 3742 /* auth method / AKM not supported */ 3743 /* TODO: All the FT vesions of these? */ 3744 return; 3745 } 3746 3747 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3748 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3749 3750 /* TODO: add support for collocated AP data */ 3751 iwl_mei_host_associated(&conn_info, NULL); 3752 #endif 3753 } 3754 3755 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3756 struct ieee80211_vif *vif, 3757 bool force_assoc_off) 3758 { 3759 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3760 } 3761 3762 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3763 struct ieee80211_vif *vif, 3764 struct ieee80211_sta *sta, 3765 enum ieee80211_sta_state old_state, 3766 enum ieee80211_sta_state new_state) 3767 { 3768 static const struct iwl_mvm_sta_state_ops callbacks = { 3769 .add_sta = iwl_mvm_add_sta, 3770 .update_sta = iwl_mvm_update_sta, 3771 .rm_sta = iwl_mvm_rm_sta, 3772 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3773 }; 3774 3775 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3776 &callbacks); 3777 } 3778 3779 /* FIXME: temporary making two assumptions in all sta handling functions: 3780 * (1) when setting sta state, the link exists and protected 3781 * (2) if a link is valid in sta then it's valid in vif (can 3782 * use same index in the link array) 3783 */ 3784 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3785 struct ieee80211_vif *vif, 3786 struct ieee80211_sta *sta) 3787 { 3788 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3789 unsigned int link_id; 3790 3791 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3792 struct ieee80211_bss_conf *conf = 3793 link_conf_dereference_check(vif, link_id); 3794 struct ieee80211_link_sta *link_sta = 3795 link_sta_dereference_check(sta, link_id); 3796 3797 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3798 continue; 3799 3800 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3801 mvmvif->link[link_id]->phy_ctxt->channel->band); 3802 } 3803 } 3804 3805 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3806 struct ieee80211_vif *vif, 3807 struct ieee80211_sta *sta) 3808 { 3809 struct ieee80211_link_sta *link_sta; 3810 unsigned int link_id; 3811 3812 /* Beacon interval check - firmware will crash if the beacon 3813 * interval is less than 16. We can't avoid connecting at all, 3814 * so refuse the station state change, this will cause mac80211 3815 * to abandon attempts to connect to this AP, and eventually 3816 * wpa_s will blocklist the AP... 3817 */ 3818 3819 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3820 struct ieee80211_bss_conf *link_conf = 3821 link_conf_dereference_protected(vif, link_id); 3822 3823 if (!link_conf) 3824 continue; 3825 3826 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3827 IWL_ERR(mvm, 3828 "Beacon interval %d for AP %pM is too small\n", 3829 link_conf->beacon_int, link_sta->addr); 3830 return false; 3831 } 3832 3833 link_conf->he_support = link_sta->he_cap.has_he; 3834 } 3835 3836 return true; 3837 } 3838 3839 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3840 struct ieee80211_vif *vif, 3841 struct ieee80211_sta *sta, 3842 bool is_sta) 3843 { 3844 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3845 struct ieee80211_link_sta *link_sta; 3846 unsigned int link_id; 3847 3848 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3849 struct ieee80211_bss_conf *link_conf = 3850 link_conf_dereference_protected(vif, link_id); 3851 3852 if (!link_conf || !mvmvif->link[link_id]) 3853 continue; 3854 3855 link_conf->he_support = link_sta->he_cap.has_he; 3856 3857 if (is_sta) { 3858 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3859 if (link_sta->he_cap.has_he) 3860 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3861 link_id, 3862 link_conf); 3863 } 3864 } 3865 } 3866 3867 static int 3868 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3869 struct ieee80211_vif *vif, 3870 struct ieee80211_sta *sta, 3871 const struct iwl_mvm_sta_state_ops *callbacks) 3872 { 3873 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3874 struct ieee80211_link_sta *link_sta; 3875 unsigned int i; 3876 int ret; 3877 3878 lockdep_assert_held(&mvm->mutex); 3879 3880 if (vif->type == NL80211_IFTYPE_STATION && 3881 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3882 return -EINVAL; 3883 3884 if (sta->tdls && 3885 (vif->p2p || 3886 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_TDLS_STA_COUNT || 3887 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3888 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3889 return -EBUSY; 3890 } 3891 3892 ret = callbacks->add_sta(mvm, vif, sta); 3893 if (sta->tdls && ret == 0) { 3894 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3895 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3896 NL80211_TDLS_SETUP); 3897 } 3898 3899 if (ret) 3900 return ret; 3901 3902 for_each_sta_active_link(vif, sta, link_sta, i) 3903 link_sta->agg.max_rc_amsdu_len = 1; 3904 3905 ieee80211_sta_recalc_aggregates(sta); 3906 3907 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3908 mvmvif->ap_sta = sta; 3909 3910 /* 3911 * Initialize the rates here already - this really tells 3912 * the firmware only what the supported legacy rates are 3913 * (may be) since it's initialized already from what the 3914 * AP advertised in the beacon/probe response. This will 3915 * allow the firmware to send auth/assoc frames with one 3916 * of the supported rates already, rather than having to 3917 * use a mandatory rate. 3918 * If we're the AP, we'll just assume mandatory rates at 3919 * this point, but we know nothing about the STA anyway. 3920 */ 3921 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3922 3923 return 0; 3924 } 3925 3926 static int 3927 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3928 struct iwl_mvm *mvm, 3929 struct ieee80211_vif *vif, 3930 struct ieee80211_sta *sta, 3931 const struct iwl_mvm_sta_state_ops *callbacks) 3932 { 3933 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3934 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3935 struct ieee80211_link_sta *link_sta; 3936 unsigned int link_id; 3937 3938 lockdep_assert_held(&mvm->mutex); 3939 3940 if (vif->type == NL80211_IFTYPE_AP) { 3941 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3942 mvmvif->ap_assoc_sta_count++; 3943 callbacks->mac_ctxt_changed(mvm, vif, false); 3944 3945 /* since the below is not for MLD API, it's ok to use 3946 * the default bss_conf 3947 */ 3948 if (!mvm->mld_api_is_used && 3949 (vif->bss_conf.he_support && 3950 !iwlwifi_mod_params.disable_11ax)) 3951 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3952 } else if (vif->type == NL80211_IFTYPE_STATION) { 3953 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3954 3955 callbacks->mac_ctxt_changed(mvm, vif, false); 3956 3957 if (!mvm->mld_api_is_used) 3958 goto out; 3959 3960 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3961 struct ieee80211_bss_conf *link_conf = 3962 link_conf_dereference_protected(vif, link_id); 3963 3964 if (WARN_ON(!link_conf)) 3965 return -EINVAL; 3966 if (!mvmvif->link[link_id]) 3967 continue; 3968 3969 iwl_mvm_link_changed(mvm, vif, link_conf, 3970 LINK_CONTEXT_MODIFY_ALL & 3971 ~LINK_CONTEXT_MODIFY_ACTIVE, 3972 true); 3973 } 3974 } 3975 3976 out: 3977 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3978 3979 return callbacks->update_sta(mvm, vif, sta); 3980 } 3981 3982 static int 3983 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3984 struct ieee80211_vif *vif, 3985 struct ieee80211_sta *sta, 3986 const struct iwl_mvm_sta_state_ops *callbacks) 3987 { 3988 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3989 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3990 3991 lockdep_assert_held(&mvm->mutex); 3992 3993 /* we don't support TDLS during DCM */ 3994 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3995 iwl_mvm_teardown_tdls_peers(mvm); 3996 3997 if (sta->tdls) { 3998 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3999 NL80211_TDLS_ENABLE_LINK); 4000 } else { 4001 /* enable beacon filtering */ 4002 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 4003 4004 mvmvif->authorized = 1; 4005 4006 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 4007 mvmvif->link_selection_res = vif->active_links; 4008 mvmvif->link_selection_primary = 4009 vif->active_links ? __ffs(vif->active_links) : 0; 4010 } 4011 4012 callbacks->mac_ctxt_changed(mvm, vif, false); 4013 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 4014 4015 memset(&mvmvif->last_esr_exit, 0, 4016 sizeof(mvmvif->last_esr_exit)); 4017 4018 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); 4019 4020 /* Block until FW notif will arrive */ 4021 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0); 4022 4023 /* when client is authorized (AP station marked as such), 4024 * try to enable the best link(s). 4025 */ 4026 if (vif->type == NL80211_IFTYPE_STATION && 4027 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4028 iwl_mvm_select_links(mvm, vif); 4029 } 4030 4031 mvm_sta->authorized = true; 4032 4033 /* MFP is set by default before the station is authorized. 4034 * Clear it here in case it's not used. 4035 */ 4036 if (!sta->mfp) { 4037 int ret = callbacks->update_sta(mvm, vif, sta); 4038 4039 if (ret) 4040 return ret; 4041 } 4042 4043 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4044 4045 return 0; 4046 } 4047 4048 static int 4049 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 4050 struct ieee80211_vif *vif, 4051 struct ieee80211_sta *sta, 4052 const struct iwl_mvm_sta_state_ops *callbacks) 4053 { 4054 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4055 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4056 4057 lockdep_assert_held(&mvm->mutex); 4058 4059 mvmsta->authorized = false; 4060 4061 /* once we move into assoc state, need to update rate scale to 4062 * disable using wide bandwidth 4063 */ 4064 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4065 4066 if (!sta->tdls) { 4067 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 4068 * yet to avoid sending high prio again for a little 4069 * time. 4070 */ 4071 mvmvif->authorized = 0; 4072 mvmvif->link_selection_res = 0; 4073 4074 /* disable beacon filtering */ 4075 iwl_mvm_disable_beacon_filter(mvm, vif); 4076 4077 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4078 &mvmvif->prevent_esr_done_wk); 4079 4080 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4081 &mvmvif->mlo_int_scan_wk); 4082 4083 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 4084 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4085 &mvmvif->unblock_esr_tmp_non_bss_wk); 4086 } 4087 4088 return 0; 4089 } 4090 4091 void iwl_mvm_smps_workaround(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4092 bool update) 4093 { 4094 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4095 4096 if (!iwl_mvm_has_rlc_offload(mvm) || 4097 iwl_fw_lookup_cmd_ver(mvm->fw, MAC_PM_POWER_TABLE, 0) >= 2) 4098 return; 4099 4100 mvmvif->ps_disabled = !vif->cfg.ps; 4101 4102 if (update) 4103 iwl_mvm_power_update_mac(mvm); 4104 } 4105 4106 /* Common part for MLD and non-MLD modes */ 4107 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4108 struct ieee80211_vif *vif, 4109 struct ieee80211_sta *sta, 4110 enum ieee80211_sta_state old_state, 4111 enum ieee80211_sta_state new_state, 4112 const struct iwl_mvm_sta_state_ops *callbacks) 4113 { 4114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4115 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4116 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4117 struct ieee80211_link_sta *link_sta; 4118 unsigned int link_id; 4119 int ret; 4120 4121 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4122 sta->addr, old_state, new_state); 4123 4124 /* 4125 * If we are in a STA removal flow and in DQA mode: 4126 * 4127 * This is after the sync_rcu part, so the queues have already been 4128 * flushed. No more TXs on their way in mac80211's path, and no more in 4129 * the queues. 4130 * Also, we won't be getting any new TX frames for this station. 4131 * What we might have are deferred TX frames that need to be taken care 4132 * of. 4133 * 4134 * Drop any still-queued deferred-frame before removing the STA, and 4135 * make sure the worker is no longer handling frames for this STA. 4136 */ 4137 if (old_state == IEEE80211_STA_NONE && 4138 new_state == IEEE80211_STA_NOTEXIST) { 4139 flush_work(&mvm->add_stream_wk); 4140 4141 /* 4142 * No need to make sure deferred TX indication is off since the 4143 * worker will already remove it if it was on 4144 */ 4145 4146 /* 4147 * Additionally, reset the 40 MHz capability if we disconnected 4148 * from the AP now. 4149 */ 4150 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4151 4152 /* Also free dup data just in case any assertions below fail */ 4153 kfree(mvm_sta->dup_data); 4154 } 4155 4156 mutex_lock(&mvm->mutex); 4157 4158 /* this would be a mac80211 bug ... but don't crash, unless we had a 4159 * firmware crash while we were activating a link, in which case it is 4160 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4161 * recovery flow since we spit tons of error messages anyway. 4162 */ 4163 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4164 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4165 !mvmvif->link[link_id]->phy_ctxt)) { 4166 mutex_unlock(&mvm->mutex); 4167 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4168 &mvm->status) ? 0 : -EINVAL; 4169 } 4170 } 4171 4172 /* track whether or not the station is associated */ 4173 mvm_sta->sta_state = new_state; 4174 4175 if (old_state == IEEE80211_STA_NOTEXIST && 4176 new_state == IEEE80211_STA_NONE) { 4177 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4178 callbacks); 4179 if (ret < 0) 4180 goto out_unlock; 4181 } else if (old_state == IEEE80211_STA_NONE && 4182 new_state == IEEE80211_STA_AUTH) { 4183 /* 4184 * EBS may be disabled due to previous failures reported by FW. 4185 * Reset EBS status here assuming environment has been changed. 4186 */ 4187 mvm->last_ebs_successful = true; 4188 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4189 ret = 0; 4190 } else if (old_state == IEEE80211_STA_AUTH && 4191 new_state == IEEE80211_STA_ASSOC) { 4192 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4193 callbacks); 4194 } else if (old_state == IEEE80211_STA_ASSOC && 4195 new_state == IEEE80211_STA_AUTHORIZED) { 4196 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4197 callbacks); 4198 iwl_mvm_smps_workaround(mvm, vif, true); 4199 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4200 new_state == IEEE80211_STA_ASSOC) { 4201 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4202 callbacks); 4203 } else if (old_state == IEEE80211_STA_ASSOC && 4204 new_state == IEEE80211_STA_AUTH) { 4205 if (vif->type == NL80211_IFTYPE_AP) { 4206 mvmvif->ap_assoc_sta_count--; 4207 callbacks->mac_ctxt_changed(mvm, vif, false); 4208 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4209 iwl_mvm_stop_session_protection(mvm, vif); 4210 ret = 0; 4211 } else if (old_state == IEEE80211_STA_AUTH && 4212 new_state == IEEE80211_STA_NONE) { 4213 ret = 0; 4214 } else if (old_state == IEEE80211_STA_NONE && 4215 new_state == IEEE80211_STA_NOTEXIST) { 4216 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4217 iwl_mvm_stop_session_protection(mvm, vif); 4218 mvmvif->ap_sta = NULL; 4219 } 4220 ret = callbacks->rm_sta(mvm, vif, sta); 4221 if (sta->tdls) { 4222 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4223 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4224 NL80211_TDLS_DISABLE_LINK); 4225 } 4226 4227 if (unlikely(ret && 4228 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4229 &mvm->status))) 4230 ret = 0; 4231 } else { 4232 ret = -EIO; 4233 } 4234 out_unlock: 4235 mutex_unlock(&mvm->mutex); 4236 4237 if (sta->tdls && ret == 0) { 4238 if (old_state == IEEE80211_STA_NOTEXIST && 4239 new_state == IEEE80211_STA_NONE) 4240 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4241 else if (old_state == IEEE80211_STA_NONE && 4242 new_state == IEEE80211_STA_NOTEXIST) 4243 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4244 } 4245 4246 return ret; 4247 } 4248 4249 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, int radio_idx, 4250 u32 value) 4251 { 4252 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4253 4254 mvm->rts_threshold = value; 4255 4256 return 0; 4257 } 4258 4259 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4260 struct ieee80211_link_sta *link_sta, u32 changed) 4261 { 4262 struct ieee80211_sta *sta = link_sta->sta; 4263 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4264 4265 if (changed & (IEEE80211_RC_BW_CHANGED | 4266 IEEE80211_RC_SUPP_RATES_CHANGED | 4267 IEEE80211_RC_NSS_CHANGED)) 4268 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4269 4270 if (vif->type == NL80211_IFTYPE_STATION && 4271 changed & IEEE80211_RC_NSS_CHANGED) 4272 iwl_mvm_sf_update(mvm, vif, false); 4273 } 4274 4275 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4276 struct ieee80211_vif *vif, 4277 unsigned int link_id, u16 ac, 4278 const struct ieee80211_tx_queue_params *params) 4279 { 4280 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4281 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4282 4283 mvmvif->deflink.queue_params[ac] = *params; 4284 4285 /* 4286 * No need to update right away, we'll get BSS_CHANGED_QOS 4287 * The exception is P2P_DEVICE interface which needs immediate update. 4288 */ 4289 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4290 guard(mvm)(mvm); 4291 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4292 } 4293 return 0; 4294 } 4295 4296 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4297 struct ieee80211_vif *vif, 4298 struct ieee80211_prep_tx_info *info) 4299 { 4300 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4301 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4302 4303 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4304 return; 4305 4306 guard(mvm)(mvm); 4307 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4308 } 4309 4310 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4311 struct ieee80211_vif *vif, 4312 struct ieee80211_prep_tx_info *info) 4313 { 4314 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4315 4316 /* for successful cases (auth/assoc), don't cancel session protection */ 4317 if (info->success) 4318 return; 4319 4320 guard(mvm)(mvm); 4321 iwl_mvm_stop_session_protection(mvm, vif); 4322 } 4323 4324 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4325 struct ieee80211_vif *vif, 4326 struct cfg80211_sched_scan_request *req, 4327 struct ieee80211_scan_ies *ies) 4328 { 4329 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4330 4331 guard(mvm)(mvm); 4332 4333 if (!vif->cfg.idle) 4334 return -EBUSY; 4335 4336 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4337 } 4338 4339 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4340 struct ieee80211_vif *vif) 4341 { 4342 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4343 int ret; 4344 4345 mutex_lock(&mvm->mutex); 4346 4347 /* Due to a race condition, it's possible that mac80211 asks 4348 * us to stop a sched_scan when it's already stopped. This 4349 * can happen, for instance, if we stopped the scan ourselves, 4350 * called ieee80211_sched_scan_stopped() and the userspace called 4351 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4352 * could run. To handle this, simply return if the scan is 4353 * not running. 4354 */ 4355 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4356 mutex_unlock(&mvm->mutex); 4357 return 0; 4358 } 4359 4360 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4361 mutex_unlock(&mvm->mutex); 4362 iwl_mvm_wait_for_async_handlers(mvm); 4363 4364 return ret; 4365 } 4366 4367 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4368 enum set_key_cmd cmd, 4369 struct ieee80211_vif *vif, 4370 struct ieee80211_sta *sta, 4371 struct ieee80211_key_conf *key) 4372 { 4373 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4374 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4375 struct iwl_mvm_sta *mvmsta = NULL; 4376 struct iwl_mvm_key_pn *ptk_pn = NULL; 4377 int keyidx = key->keyidx; 4378 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4379 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4380 int ret, i; 4381 u8 key_offset; 4382 4383 if (sta) 4384 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4385 4386 switch (key->cipher) { 4387 case WLAN_CIPHER_SUITE_TKIP: 4388 if (!mvm->trans->mac_cfg->gen2) { 4389 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4390 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4391 } else if (vif->type == NL80211_IFTYPE_STATION) { 4392 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4393 } else { 4394 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4395 return -EOPNOTSUPP; 4396 } 4397 break; 4398 case WLAN_CIPHER_SUITE_CCMP: 4399 case WLAN_CIPHER_SUITE_GCMP: 4400 case WLAN_CIPHER_SUITE_GCMP_256: 4401 if (!iwl_mvm_has_new_tx_api(mvm)) 4402 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4403 break; 4404 case WLAN_CIPHER_SUITE_AES_CMAC: 4405 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4406 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4407 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4408 break; 4409 case WLAN_CIPHER_SUITE_WEP40: 4410 case WLAN_CIPHER_SUITE_WEP104: 4411 if (vif->type == NL80211_IFTYPE_STATION) 4412 break; 4413 if (iwl_mvm_has_new_tx_api(mvm)) 4414 return -EOPNOTSUPP; 4415 /* support HW crypto on TX */ 4416 return 0; 4417 default: 4418 return -EOPNOTSUPP; 4419 } 4420 4421 switch (cmd) { 4422 case SET_KEY: 4423 if (vif->type == NL80211_IFTYPE_STATION && 4424 (keyidx == 6 || keyidx == 7)) 4425 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4426 key); 4427 4428 if ((vif->type == NL80211_IFTYPE_ADHOC || 4429 vif->type == NL80211_IFTYPE_AP) && !sta) { 4430 /* 4431 * GTK on AP interface is a TX-only key, return 0; 4432 * on IBSS they're per-station and because we're lazy 4433 * we don't support them for RX, so do the same. 4434 * CMAC/GMAC in AP/IBSS modes must be done in software 4435 * on older NICs. 4436 * 4437 * Except, of course, beacon protection - it must be 4438 * offloaded since we just set a beacon template, and 4439 * then we must also offload the IGTK (not just BIGTK) 4440 * for firmware reasons. 4441 * 4442 * So just check for beacon protection - if we don't 4443 * have it we cannot get here with keyidx >= 6, and 4444 * if we do have it we need to send the key to FW in 4445 * all cases (CMAC/GMAC). 4446 */ 4447 if (!wiphy_ext_feature_isset(hw->wiphy, 4448 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4449 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4450 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4451 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4452 ret = -EOPNOTSUPP; 4453 break; 4454 } 4455 4456 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4457 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4458 !iwl_mvm_has_new_tx_api(mvm)) { 4459 key->hw_key_idx = STA_KEY_IDX_INVALID; 4460 ret = 0; 4461 break; 4462 } 4463 4464 if (!mvmvif->ap_ibss_active) { 4465 for (i = 0; 4466 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4467 i++) { 4468 if (!mvmvif->ap_early_keys[i]) { 4469 mvmvif->ap_early_keys[i] = key; 4470 break; 4471 } 4472 } 4473 4474 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4475 ret = -ENOSPC; 4476 else 4477 ret = 0; 4478 4479 break; 4480 } 4481 } 4482 4483 /* During FW restart, in order to restore the state as it was, 4484 * don't try to reprogram keys we previously failed for. 4485 */ 4486 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4487 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4488 IWL_DEBUG_MAC80211(mvm, 4489 "skip invalid idx key programming during restart\n"); 4490 ret = 0; 4491 break; 4492 } 4493 4494 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4495 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4496 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4497 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4498 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4499 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4500 struct ieee80211_key_seq seq; 4501 int tid, q; 4502 4503 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4504 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4505 mvm->trans->info.num_rxqs), 4506 GFP_KERNEL); 4507 if (!ptk_pn) { 4508 ret = -ENOMEM; 4509 break; 4510 } 4511 4512 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4513 ieee80211_get_key_rx_seq(key, tid, &seq); 4514 for (q = 0; q < mvm->trans->info.num_rxqs; q++) 4515 memcpy(ptk_pn->q[q].pn[tid], 4516 seq.ccmp.pn, 4517 IEEE80211_CCMP_PN_LEN); 4518 } 4519 4520 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4521 } 4522 4523 /* in HW restart reuse the index, otherwise request a new one */ 4524 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4525 key_offset = key->hw_key_idx; 4526 else 4527 key_offset = STA_KEY_IDX_INVALID; 4528 4529 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4530 mvmsta->pairwise_cipher = key->cipher; 4531 4532 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4533 sta ? sta->addr : NULL, key->keyidx); 4534 4535 if (sec_key_ver) 4536 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4537 else 4538 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4539 4540 if (ret) { 4541 IWL_WARN(mvm, "set key failed\n"); 4542 key->hw_key_idx = STA_KEY_IDX_INVALID; 4543 if (ptk_pn) { 4544 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4545 kfree(ptk_pn); 4546 } 4547 /* 4548 * can't add key for RX, but we don't need it 4549 * in the device for TX so still return 0, 4550 * unless we have new TX API where we cannot 4551 * put key material into the TX_CMD 4552 */ 4553 if (iwl_mvm_has_new_tx_api(mvm)) 4554 ret = -EOPNOTSUPP; 4555 else 4556 ret = 0; 4557 } 4558 4559 break; 4560 case DISABLE_KEY: 4561 if (vif->type == NL80211_IFTYPE_STATION && 4562 (keyidx == 6 || keyidx == 7)) 4563 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4564 NULL); 4565 4566 ret = -ENOENT; 4567 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4568 if (mvmvif->ap_early_keys[i] == key) { 4569 mvmvif->ap_early_keys[i] = NULL; 4570 ret = 0; 4571 } 4572 } 4573 4574 /* found in pending list - don't do anything else */ 4575 if (ret == 0) 4576 break; 4577 4578 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4579 ret = 0; 4580 break; 4581 } 4582 4583 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4584 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4585 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4586 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4587 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4588 ptk_pn = rcu_dereference_protected( 4589 mvmsta->ptk_pn[keyidx], 4590 lockdep_is_held(&mvm->mutex)); 4591 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4592 if (ptk_pn) 4593 kfree_rcu(ptk_pn, rcu_head); 4594 } 4595 4596 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4597 if (sec_key_ver) 4598 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4599 else 4600 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4601 break; 4602 default: 4603 ret = -EINVAL; 4604 } 4605 4606 return ret; 4607 } 4608 4609 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4610 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4611 struct ieee80211_key_conf *key) 4612 { 4613 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4614 4615 /* When resuming from wowlan, FW already knows about the newest keys */ 4616 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) 4617 return 0; 4618 4619 guard(mvm)(mvm); 4620 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4621 } 4622 4623 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4624 struct ieee80211_vif *vif, 4625 struct ieee80211_key_conf *keyconf, 4626 struct ieee80211_sta *sta, 4627 u32 iv32, u16 *phase1key) 4628 { 4629 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4630 4631 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4632 return; 4633 4634 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4635 } 4636 4637 4638 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4639 struct iwl_rx_packet *pkt, void *data) 4640 { 4641 struct iwl_mvm *mvm = 4642 container_of(notif_wait, struct iwl_mvm, notif_wait); 4643 struct iwl_hs20_roc_res *resp; 4644 int resp_len = iwl_rx_packet_payload_len(pkt); 4645 struct iwl_mvm_time_event_data *te_data = data; 4646 4647 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4648 return true; 4649 4650 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4651 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4652 return true; 4653 } 4654 4655 resp = (void *)pkt->data; 4656 4657 IWL_DEBUG_TE(mvm, 4658 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4659 resp->status, resp->event_unique_id); 4660 4661 te_data->uid = le32_to_cpu(resp->event_unique_id); 4662 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4663 te_data->uid); 4664 4665 spin_lock_bh(&mvm->time_event_lock); 4666 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4667 spin_unlock_bh(&mvm->time_event_lock); 4668 4669 return true; 4670 } 4671 4672 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4673 struct ieee80211_channel *channel, 4674 struct ieee80211_vif *vif, 4675 int duration) 4676 { 4677 int res; 4678 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4679 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4680 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4681 struct iwl_notification_wait wait_time_event; 4682 u32 req_dur, delay; 4683 struct iwl_hs20_roc_req aux_roc_req = { 4684 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4685 .id_and_color = 4686 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4687 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4688 }; 4689 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4690 &aux_roc_req.channel_info); 4691 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4692 4693 /* Set the channel info data */ 4694 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4695 iwl_mvm_phy_band_from_nl80211(channel->band), 4696 IWL_PHY_CHANNEL_MODE20, 4697 0); 4698 4699 /* Set the time and duration */ 4700 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4701 4702 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4703 tail->duration = cpu_to_le32(req_dur); 4704 tail->apply_time_max_delay = cpu_to_le32(delay); 4705 4706 IWL_DEBUG_TE(mvm, 4707 "ROC: Requesting to remain on channel %u for %ums\n", 4708 channel->hw_value, req_dur); 4709 IWL_DEBUG_TE(mvm, 4710 "\t(requested = %ums, max_delay = %ums)\n", 4711 duration, delay); 4712 4713 /* Set the node address */ 4714 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4715 4716 lockdep_assert_held(&mvm->mutex); 4717 4718 spin_lock_bh(&mvm->time_event_lock); 4719 4720 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4721 spin_unlock_bh(&mvm->time_event_lock); 4722 return -EIO; 4723 } 4724 4725 te_data->vif = vif; 4726 te_data->duration = duration; 4727 te_data->id = HOT_SPOT_CMD; 4728 4729 spin_unlock_bh(&mvm->time_event_lock); 4730 4731 /* 4732 * Use a notification wait, which really just processes the 4733 * command response and doesn't wait for anything, in order 4734 * to be able to process the response and get the UID inside 4735 * the RX path. Using CMD_WANT_SKB doesn't work because it 4736 * stores the buffer and then wakes up this thread, by which 4737 * time another notification (that the time event started) 4738 * might already be processed unsuccessfully. 4739 */ 4740 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4741 time_event_response, 4742 ARRAY_SIZE(time_event_response), 4743 iwl_mvm_rx_aux_roc, te_data); 4744 4745 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4746 &aux_roc_req); 4747 4748 if (res) { 4749 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4750 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4751 goto out_clear_te; 4752 } 4753 4754 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4755 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4756 /* should never fail */ 4757 WARN_ON_ONCE(res); 4758 4759 if (res) { 4760 out_clear_te: 4761 spin_lock_bh(&mvm->time_event_lock); 4762 iwl_mvm_te_clear_data(mvm, te_data); 4763 spin_unlock_bh(&mvm->time_event_lock); 4764 } 4765 4766 return res; 4767 } 4768 4769 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4770 { 4771 int ret = 0; 4772 4773 lockdep_assert_held(&mvm->mutex); 4774 4775 if (!fw_has_capa(&mvm->fw->ucode_capa, 4776 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4777 IWL_ERR(mvm, "hotspot not supported\n"); 4778 return -EINVAL; 4779 } 4780 4781 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4782 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4783 WARN(ret, "Failed to allocate aux station"); 4784 } 4785 4786 return ret; 4787 } 4788 4789 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4790 { 4791 int ret; 4792 4793 lockdep_assert_held(&mvm->mutex); 4794 4795 ret = iwl_mvm_binding_add_vif(mvm, vif); 4796 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4797 return ret; 4798 4799 /* The station and queue allocation must be done only after the binding 4800 * is done, as otherwise the FW might incorrectly configure its state. 4801 */ 4802 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4803 } 4804 4805 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4806 struct ieee80211_vif *vif, 4807 struct ieee80211_channel *channel, 4808 int duration, 4809 enum ieee80211_roc_type type) 4810 { 4811 static const struct iwl_mvm_roc_ops ops = { 4812 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4813 .link = iwl_mvm_roc_link, 4814 }; 4815 4816 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4817 } 4818 4819 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4820 struct ieee80211_channel *channel, 4821 struct ieee80211_vif *vif, 4822 int duration) 4823 { 4824 int ret; 4825 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4826 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4827 IWL_FW_CMD_VER_UNKNOWN); 4828 4829 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4830 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4831 } else if (fw_ver >= 3) { 4832 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4833 ROC_ACTIVITY_HOTSPOT); 4834 } else { 4835 ret = -EOPNOTSUPP; 4836 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4837 } 4838 4839 return ret; 4840 } 4841 4842 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4843 struct ieee80211_channel *channel, 4844 struct ieee80211_vif *vif, 4845 int duration, 4846 enum ieee80211_roc_type type) 4847 { 4848 enum iwl_roc_activity activity; 4849 int ret; 4850 4851 lockdep_assert_held(&mvm->mutex); 4852 4853 switch (type) { 4854 case IEEE80211_ROC_TYPE_NORMAL: 4855 activity = ROC_ACTIVITY_P2P_DISC; 4856 break; 4857 case IEEE80211_ROC_TYPE_MGMT_TX: 4858 activity = ROC_ACTIVITY_P2P_NEG; 4859 break; 4860 default: 4861 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4862 return -EINVAL; 4863 } 4864 4865 ret = iwl_mvm_mld_add_aux_sta(mvm, 4866 iwl_mvm_get_lmac_id(mvm, channel->band)); 4867 if (ret) 4868 return ret; 4869 4870 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4871 } 4872 4873 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4874 struct ieee80211_vif *vif, 4875 struct ieee80211_channel *channel) 4876 { 4877 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4878 struct cfg80211_chan_def chandef; 4879 int i; 4880 4881 lockdep_assert_held(&mvm->mutex); 4882 4883 if (mvmvif->deflink.phy_ctxt && 4884 channel == mvmvif->deflink.phy_ctxt->channel) 4885 return 0; 4886 4887 /* Try using a PHY context that is already in use */ 4888 for (i = 0; i < NUM_PHY_CTX; i++) { 4889 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4890 4891 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4892 continue; 4893 4894 if (channel == phy_ctxt->channel) { 4895 if (mvmvif->deflink.phy_ctxt) 4896 iwl_mvm_phy_ctxt_unref(mvm, 4897 mvmvif->deflink.phy_ctxt); 4898 4899 mvmvif->deflink.phy_ctxt = phy_ctxt; 4900 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4901 return 0; 4902 } 4903 } 4904 4905 /* We already have a phy_ctxt, but it's not on the right channel */ 4906 if (mvmvif->deflink.phy_ctxt) 4907 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4908 4909 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4910 if (!mvmvif->deflink.phy_ctxt) 4911 return -ENOSPC; 4912 4913 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4914 4915 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4916 &chandef, NULL, 1, 1); 4917 } 4918 4919 /* Execute the common part for MLD and non-MLD modes */ 4920 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4921 struct ieee80211_channel *channel, int duration, 4922 enum ieee80211_roc_type type, 4923 const struct iwl_mvm_roc_ops *ops) 4924 { 4925 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4926 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); 4927 u32 lmac_id; 4928 int ret; 4929 4930 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4931 duration, type); 4932 4933 /* 4934 * Flush the done work, just in case it's still pending, so that 4935 * the work it does can complete and we can accept new frames. 4936 */ 4937 flush_work(&mvm->roc_done_wk); 4938 4939 if (!IS_ERR_OR_NULL(bss_vif)) { 4940 ret = iwl_mvm_block_esr_sync(mvm, bss_vif, 4941 IWL_MVM_ESR_BLOCKED_ROC); 4942 if (ret) 4943 return ret; 4944 } 4945 4946 guard(mvm)(mvm); 4947 4948 switch (vif->type) { 4949 case NL80211_IFTYPE_STATION: 4950 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4951 4952 /* Use aux roc framework (HS20) */ 4953 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4954 if (!ret) 4955 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4956 return ret; 4957 case NL80211_IFTYPE_P2P_DEVICE: 4958 /* handle below */ 4959 break; 4960 default: 4961 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4962 return -EINVAL; 4963 } 4964 4965 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4966 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4967 return ret; 4968 } 4969 4970 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4971 if (ret) 4972 return ret; 4973 4974 ret = ops->link(mvm, vif); 4975 if (ret) 4976 return ret; 4977 4978 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4979 } 4980 4981 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4982 struct ieee80211_vif *vif) 4983 { 4984 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4985 4986 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4987 4988 iwl_mvm_stop_roc(mvm, vif); 4989 4990 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4991 return 0; 4992 } 4993 4994 struct iwl_mvm_chanctx_usage_data { 4995 struct iwl_mvm *mvm; 4996 struct ieee80211_chanctx_conf *ctx; 4997 bool use_def; 4998 }; 4999 5000 static void iwl_mvm_chanctx_usage_iter(void *_data, u8 *mac, 5001 struct ieee80211_vif *vif) 5002 { 5003 struct iwl_mvm_chanctx_usage_data *data = _data; 5004 struct ieee80211_bss_conf *link_conf; 5005 int link_id; 5006 5007 for_each_vif_active_link(vif, link_conf, link_id) { 5008 if (rcu_access_pointer(link_conf->chanctx_conf) != data->ctx) 5009 continue; 5010 5011 if (iwl_mvm_enable_fils(data->mvm, vif, data->ctx)) 5012 data->use_def = true; 5013 5014 if (vif->type == NL80211_IFTYPE_AP && link_conf->ftmr_params) 5015 data->use_def = true; 5016 } 5017 } 5018 5019 struct cfg80211_chan_def * 5020 iwl_mvm_chanctx_def(struct iwl_mvm *mvm, struct ieee80211_chanctx_conf *ctx) 5021 { 5022 struct iwl_mvm_chanctx_usage_data data = { 5023 .mvm = mvm, 5024 .ctx = ctx, 5025 .use_def = false, 5026 }; 5027 5028 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 5029 IEEE80211_IFACE_ITER_NORMAL, 5030 iwl_mvm_chanctx_usage_iter, 5031 &data); 5032 5033 return data.use_def ? &ctx->def : &ctx->min_def; 5034 } 5035 5036 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 5037 struct ieee80211_chanctx_conf *ctx) 5038 { 5039 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5040 struct iwl_mvm_phy_ctxt *phy_ctxt; 5041 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5042 int ret; 5043 5044 lockdep_assert_held(&mvm->mutex); 5045 5046 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 5047 5048 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 5049 if (!phy_ctxt) { 5050 ret = -ENOSPC; 5051 goto out; 5052 } 5053 5054 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 5055 ctx->rx_chains_static, 5056 ctx->rx_chains_dynamic); 5057 if (ret) { 5058 IWL_ERR(mvm, "Failed to add PHY context\n"); 5059 goto out; 5060 } 5061 5062 *phy_ctxt_id = phy_ctxt->id; 5063 out: 5064 return ret; 5065 } 5066 5067 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 5068 struct ieee80211_chanctx_conf *ctx) 5069 { 5070 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5071 5072 guard(mvm)(mvm); 5073 return __iwl_mvm_add_chanctx(mvm, ctx); 5074 } 5075 5076 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 5077 struct ieee80211_chanctx_conf *ctx) 5078 { 5079 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5080 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5081 5082 lockdep_assert_held(&mvm->mutex); 5083 5084 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 5085 } 5086 5087 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 5088 struct ieee80211_chanctx_conf *ctx) 5089 { 5090 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5091 5092 guard(mvm)(mvm); 5093 __iwl_mvm_remove_chanctx(mvm, ctx); 5094 } 5095 5096 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 5097 struct ieee80211_chanctx_conf *ctx, u32 changed) 5098 { 5099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5100 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5101 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5102 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5103 5104 if (WARN_ONCE((phy_ctxt->ref > 1) && 5105 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 5106 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 5107 IEEE80211_CHANCTX_CHANGE_RADAR | 5108 IEEE80211_CHANCTX_CHANGE_MIN_DEF)), 5109 "Cannot change PHY. Ref=%d, changed=0x%X\n", 5110 phy_ctxt->ref, changed)) 5111 return; 5112 5113 guard(mvm)(mvm); 5114 5115 /* we are only changing the min_width, may be a noop */ 5116 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) { 5117 if (phy_ctxt->width == def->width) 5118 return; 5119 5120 /* we are just toggling between 20_NOHT and 20 */ 5121 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5122 def->width <= NL80211_CHAN_WIDTH_20) 5123 return; 5124 } 5125 5126 iwl_mvm_bt_coex_vif_change(mvm); 5127 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5128 ctx->rx_chains_static, 5129 ctx->rx_chains_dynamic); 5130 } 5131 5132 /* 5133 * This function executes the common part for MLD and non-MLD modes. 5134 * 5135 * Returns true if we're done assigning the chanctx 5136 * (either on failure or success) 5137 */ 5138 static bool 5139 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5140 struct ieee80211_vif *vif, 5141 struct ieee80211_chanctx_conf *ctx, 5142 bool switching_chanctx, int *ret) 5143 { 5144 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5145 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5146 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5147 5148 lockdep_assert_held(&mvm->mutex); 5149 5150 mvmvif->deflink.phy_ctxt = phy_ctxt; 5151 5152 switch (vif->type) { 5153 case NL80211_IFTYPE_AP: 5154 /* only needed if we're switching chanctx (i.e. during CSA) */ 5155 if (switching_chanctx) { 5156 mvmvif->ap_ibss_active = true; 5157 break; 5158 } 5159 fallthrough; 5160 case NL80211_IFTYPE_ADHOC: 5161 /* 5162 * The AP binding flow is handled as part of the start_ap flow 5163 * (in bss_info_changed), similarly for IBSS. 5164 */ 5165 *ret = 0; 5166 return true; 5167 case NL80211_IFTYPE_STATION: 5168 break; 5169 case NL80211_IFTYPE_MONITOR: 5170 /* always disable PS when a monitor interface is active */ 5171 mvmvif->ps_disabled = true; 5172 break; 5173 default: 5174 *ret = -EINVAL; 5175 return true; 5176 } 5177 return false; 5178 } 5179 5180 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5181 struct ieee80211_vif *vif, 5182 struct ieee80211_bss_conf *link_conf, 5183 struct ieee80211_chanctx_conf *ctx, 5184 bool switching_chanctx) 5185 { 5186 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5187 int ret; 5188 5189 if (WARN_ON(!link_conf)) 5190 return -EINVAL; 5191 5192 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5193 switching_chanctx, &ret)) 5194 goto out; 5195 5196 ret = iwl_mvm_binding_add_vif(mvm, vif); 5197 if (ret) 5198 goto out; 5199 5200 /* 5201 * Power state must be updated before quotas, 5202 * otherwise fw will complain. 5203 */ 5204 iwl_mvm_power_update_mac(mvm); 5205 5206 /* Setting the quota at this stage is only required for monitor 5207 * interfaces. For the other types, the bss_info changed flow 5208 * will handle quota settings. 5209 */ 5210 if (vif->type == NL80211_IFTYPE_MONITOR) { 5211 mvmvif->monitor_active = true; 5212 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5213 if (ret) 5214 goto out_remove_binding; 5215 5216 ret = iwl_mvm_add_snif_sta(mvm, vif); 5217 if (ret) 5218 goto out_remove_binding; 5219 5220 } 5221 5222 /* Handle binding during CSA */ 5223 if (vif->type == NL80211_IFTYPE_AP) { 5224 iwl_mvm_update_quotas(mvm, false, NULL); 5225 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5226 } 5227 5228 if (vif->type == NL80211_IFTYPE_STATION) { 5229 if (!switching_chanctx) { 5230 mvmvif->csa_bcn_pending = false; 5231 goto out; 5232 } 5233 5234 mvmvif->csa_bcn_pending = true; 5235 5236 if (!fw_has_capa(&mvm->fw->ucode_capa, 5237 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5238 u32 duration = 5 * vif->bss_conf.beacon_int; 5239 5240 /* Protect the session to make sure we hear the first 5241 * beacon on the new channel. 5242 */ 5243 iwl_mvm_protect_session(mvm, vif, duration, duration, 5244 vif->bss_conf.beacon_int / 2, 5245 true); 5246 } 5247 5248 iwl_mvm_update_quotas(mvm, false, NULL); 5249 5250 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5251 link_conf, 5252 false); 5253 } 5254 5255 goto out; 5256 5257 out_remove_binding: 5258 iwl_mvm_binding_remove_vif(mvm, vif); 5259 iwl_mvm_power_update_mac(mvm); 5260 out: 5261 if (ret) 5262 mvmvif->deflink.phy_ctxt = NULL; 5263 return ret; 5264 } 5265 5266 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5267 struct ieee80211_vif *vif, 5268 struct ieee80211_bss_conf *link_conf, 5269 struct ieee80211_chanctx_conf *ctx) 5270 { 5271 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5272 5273 guard(mvm)(mvm); 5274 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5275 } 5276 5277 /* 5278 * This function executes the common part for MLD and non-MLD modes. 5279 * 5280 * Returns if chanctx unassign chanctx is done 5281 * (either on failure or success) 5282 */ 5283 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5284 struct ieee80211_vif *vif, 5285 bool switching_chanctx) 5286 { 5287 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5288 5289 lockdep_assert_held(&mvm->mutex); 5290 iwl_mvm_remove_time_event(mvm, mvmvif, 5291 &mvmvif->time_event_data); 5292 5293 switch (vif->type) { 5294 case NL80211_IFTYPE_ADHOC: 5295 return true; 5296 case NL80211_IFTYPE_MONITOR: 5297 mvmvif->monitor_active = false; 5298 mvmvif->ps_disabled = false; 5299 break; 5300 case NL80211_IFTYPE_AP: 5301 /* This part is triggered only during CSA */ 5302 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5303 return true; 5304 5305 mvmvif->csa_countdown = false; 5306 5307 /* Set CS bit on all the stations */ 5308 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5309 5310 /* Save blocked iface, the timeout is set on the next beacon */ 5311 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5312 5313 mvmvif->ap_ibss_active = false; 5314 break; 5315 default: 5316 break; 5317 } 5318 return false; 5319 } 5320 5321 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5322 struct ieee80211_vif *vif, 5323 struct ieee80211_bss_conf *link_conf, 5324 struct ieee80211_chanctx_conf *ctx, 5325 bool switching_chanctx) 5326 { 5327 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5328 struct ieee80211_vif *disabled_vif = NULL; 5329 5330 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5331 goto out; 5332 5333 if (vif->type == NL80211_IFTYPE_MONITOR) 5334 iwl_mvm_rm_snif_sta(mvm, vif); 5335 5336 5337 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5338 disabled_vif = vif; 5339 if (!fw_has_capa(&mvm->fw->ucode_capa, 5340 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5341 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5342 } 5343 5344 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5345 iwl_mvm_binding_remove_vif(mvm, vif); 5346 5347 out: 5348 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5349 switching_chanctx) 5350 return; 5351 mvmvif->deflink.phy_ctxt = NULL; 5352 iwl_mvm_power_update_mac(mvm); 5353 } 5354 5355 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5356 struct ieee80211_vif *vif, 5357 struct ieee80211_bss_conf *link_conf, 5358 struct ieee80211_chanctx_conf *ctx) 5359 { 5360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5361 5362 guard(mvm)(mvm); 5363 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5364 } 5365 5366 static int 5367 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5368 struct ieee80211_vif_chanctx_switch *vifs, 5369 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5370 { 5371 int ret; 5372 5373 guard(mvm)(mvm); 5374 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5375 vifs[0].old_ctx, true); 5376 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5377 5378 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5379 if (ret) { 5380 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5381 goto out_reassign; 5382 } 5383 5384 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5385 vifs[0].new_ctx, true); 5386 if (ret) { 5387 IWL_ERR(mvm, 5388 "failed to assign new_ctx during channel switch\n"); 5389 goto out_remove; 5390 } 5391 5392 /* we don't support TDLS during DCM - can be caused by channel switch */ 5393 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5394 iwl_mvm_teardown_tdls_peers(mvm); 5395 5396 return 0; 5397 5398 out_remove: 5399 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5400 5401 out_reassign: 5402 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5403 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5404 goto out_restart; 5405 } 5406 5407 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5408 vifs[0].old_ctx, true)) { 5409 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5410 goto out_restart; 5411 } 5412 5413 return ret; 5414 5415 out_restart: 5416 /* things keep failing, better restart the hw */ 5417 iwl_force_nmi(mvm->trans); 5418 return ret; 5419 } 5420 5421 static int 5422 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5423 struct ieee80211_vif_chanctx_switch *vifs, 5424 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5425 { 5426 int ret; 5427 5428 guard(mvm)(mvm); 5429 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5430 vifs[0].old_ctx, true); 5431 5432 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5433 vifs[0].new_ctx, true); 5434 if (ret) { 5435 IWL_ERR(mvm, 5436 "failed to assign new_ctx during channel switch\n"); 5437 goto out_reassign; 5438 } 5439 5440 return 0; 5441 5442 out_reassign: 5443 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5444 vifs[0].old_ctx, true)) { 5445 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5446 goto out_restart; 5447 } 5448 5449 return ret; 5450 5451 out_restart: 5452 /* things keep failing, better restart the hw */ 5453 iwl_force_nmi(mvm->trans); 5454 return ret; 5455 } 5456 5457 /* Execute the common part for both MLD and non-MLD modes */ 5458 int 5459 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5460 struct ieee80211_vif_chanctx_switch *vifs, 5461 int n_vifs, 5462 enum ieee80211_chanctx_switch_mode mode, 5463 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5464 { 5465 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5466 int ret; 5467 5468 /* we only support a single-vif right now */ 5469 if (n_vifs > 1) 5470 return -EOPNOTSUPP; 5471 5472 switch (mode) { 5473 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5474 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5475 break; 5476 case CHANCTX_SWMODE_REASSIGN_VIF: 5477 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5478 break; 5479 default: 5480 ret = -EOPNOTSUPP; 5481 break; 5482 } 5483 5484 return ret; 5485 } 5486 5487 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5488 struct ieee80211_vif_chanctx_switch *vifs, 5489 int n_vifs, 5490 enum ieee80211_chanctx_switch_mode mode) 5491 { 5492 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5493 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5494 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5495 }; 5496 5497 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5498 } 5499 5500 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5501 { 5502 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5503 5504 return mvm->ibss_manager; 5505 } 5506 5507 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5508 bool set) 5509 { 5510 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5511 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5512 5513 if (!mvm_sta || !mvm_sta->vif) { 5514 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5515 return -EINVAL; 5516 } 5517 5518 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5519 &mvm_sta->vif->bss_conf); 5520 } 5521 5522 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5523 struct ieee80211_channel_switch *chsw) 5524 { 5525 /* By implementing this operation, we prevent mac80211 from 5526 * starting its own channel switch timer, so that we can call 5527 * ieee80211_chswitch_done() ourselves at the right time 5528 * (which is when the absence time event starts). 5529 */ 5530 5531 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5532 "dummy channel switch op\n"); 5533 } 5534 5535 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5536 struct ieee80211_vif *vif, 5537 struct ieee80211_channel_switch *chsw) 5538 { 5539 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5540 struct iwl_chan_switch_te_cmd cmd = { 5541 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5542 mvmvif->color)), 5543 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5544 .tsf = cpu_to_le32(chsw->timestamp), 5545 .cs_count = chsw->count, 5546 .cs_mode = chsw->block_tx, 5547 }; 5548 5549 lockdep_assert_held(&mvm->mutex); 5550 5551 if (chsw->delay) 5552 cmd.cs_delayed_bcn_count = 5553 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5554 5555 return iwl_mvm_send_cmd_pdu(mvm, 5556 WIDE_ID(MAC_CONF_GROUP, 5557 CHANNEL_SWITCH_TIME_EVENT_CMD), 5558 0, sizeof(cmd), &cmd); 5559 } 5560 5561 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5562 struct ieee80211_vif *vif, 5563 struct ieee80211_channel_switch *chsw) 5564 { 5565 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5566 u32 apply_time; 5567 5568 /* Schedule the time event to a bit before beacon 1, 5569 * to make sure we're in the new channel when the 5570 * GO/AP arrives. In case count <= 1 immediately schedule the 5571 * TE (this might result with some packet loss or connection 5572 * loss). 5573 */ 5574 if (chsw->count <= 1) 5575 apply_time = 0; 5576 else 5577 apply_time = chsw->device_timestamp + 5578 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5579 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5580 5581 if (chsw->block_tx) 5582 iwl_mvm_csa_client_absent(mvm, vif); 5583 5584 if (mvmvif->bf_enabled) { 5585 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5586 5587 if (ret) 5588 return ret; 5589 } 5590 5591 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5592 apply_time); 5593 5594 return 0; 5595 } 5596 5597 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5598 { 5599 int i; 5600 5601 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5602 struct iwl_mvm_txq *mvmtxq = 5603 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5604 5605 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5606 } 5607 } 5608 5609 #define IWL_MAX_CSA_BLOCK_TX 1500 5610 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5611 struct ieee80211_vif *vif, 5612 struct ieee80211_channel_switch *chsw) 5613 { 5614 struct ieee80211_vif *csa_vif; 5615 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5616 struct iwl_mvm_txq *mvmtxq; 5617 int ret; 5618 5619 lockdep_assert_held(&mvm->mutex); 5620 5621 mvmvif->csa_failed = false; 5622 mvmvif->csa_blocks_tx = false; 5623 5624 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5625 chsw->chandef.center_freq1); 5626 5627 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5628 ieee80211_vif_to_wdev(vif), 5629 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5630 5631 switch (vif->type) { 5632 case NL80211_IFTYPE_AP: 5633 csa_vif = 5634 rcu_dereference_protected(mvm->csa_vif, 5635 lockdep_is_held(&mvm->mutex)); 5636 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5637 "Another CSA is already in progress")) 5638 return -EBUSY; 5639 5640 /* we still didn't unblock tx. prevent new CS meanwhile */ 5641 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5642 lockdep_is_held(&mvm->mutex))) 5643 return -EBUSY; 5644 5645 rcu_assign_pointer(mvm->csa_vif, vif); 5646 5647 if (WARN_ONCE(mvmvif->csa_countdown, 5648 "Previous CSA countdown didn't complete")) 5649 return -EBUSY; 5650 5651 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5652 5653 if (!chsw->block_tx) 5654 break; 5655 /* don't need blocking in driver otherwise - mac80211 will do */ 5656 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5657 break; 5658 5659 mvmvif->csa_blocks_tx = true; 5660 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5661 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5662 ieee80211_iterate_stations_atomic(mvm->hw, 5663 iwl_mvm_csa_block_txqs, 5664 NULL); 5665 break; 5666 case NL80211_IFTYPE_STATION: 5667 mvmvif->csa_blocks_tx = chsw->block_tx; 5668 5669 /* 5670 * In the new flow FW is in charge of timing the switch so there 5671 * is no need for all of this 5672 */ 5673 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5674 CHANNEL_SWITCH_ERROR_NOTIF, 5675 0)) 5676 break; 5677 5678 /* 5679 * We haven't configured the firmware to be associated yet since 5680 * we don't know the dtim period. In this case, the firmware can't 5681 * track the beacons. 5682 */ 5683 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5684 return -EBUSY; 5685 5686 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5687 hweight16(vif->valid_links) <= 1) 5688 schedule_delayed_work(&mvmvif->csa_work, 0); 5689 5690 if (chsw->block_tx) { 5691 /* 5692 * In case of undetermined / long time with immediate 5693 * quiet monitor status to gracefully disconnect 5694 */ 5695 if (!chsw->count || 5696 chsw->count * vif->bss_conf.beacon_int > 5697 IWL_MAX_CSA_BLOCK_TX) 5698 schedule_delayed_work(&mvmvif->csa_work, 5699 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5700 } 5701 5702 if (!fw_has_capa(&mvm->fw->ucode_capa, 5703 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5704 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5705 if (ret) 5706 return ret; 5707 } else { 5708 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5709 } 5710 5711 mvmvif->csa_count = chsw->count; 5712 mvmvif->csa_misbehave = false; 5713 break; 5714 default: 5715 break; 5716 } 5717 5718 mvmvif->ps_disabled = true; 5719 5720 ret = iwl_mvm_power_update_ps(mvm); 5721 if (ret) 5722 return ret; 5723 5724 /* we won't be on this channel any longer */ 5725 iwl_mvm_teardown_tdls_peers(mvm); 5726 5727 return ret; 5728 } 5729 5730 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5731 struct ieee80211_vif *vif, 5732 struct ieee80211_channel_switch *chsw) 5733 { 5734 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5735 5736 guard(mvm)(mvm); 5737 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5738 } 5739 5740 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5741 struct ieee80211_vif *vif, 5742 struct ieee80211_channel_switch *chsw) 5743 { 5744 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5745 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5746 struct iwl_chan_switch_te_cmd cmd = { 5747 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5748 mvmvif->color)), 5749 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5750 .tsf = cpu_to_le32(chsw->timestamp), 5751 .cs_count = chsw->count, 5752 .cs_mode = chsw->block_tx, 5753 }; 5754 5755 /* 5756 * In the new flow FW is in charge of timing the switch so there is no 5757 * need for all of this 5758 */ 5759 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5760 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5761 return; 5762 5763 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5764 return; 5765 5766 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5767 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5768 5769 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5770 if (mvmvif->csa_misbehave) { 5771 struct ieee80211_bss_conf *link_conf; 5772 5773 /* Second time, give up on this AP*/ 5774 5775 link_conf = wiphy_dereference(hw->wiphy, 5776 vif->link_conf[chsw->link_id]); 5777 if (WARN_ON(!link_conf)) 5778 return; 5779 5780 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5781 ieee80211_chswitch_done(vif, false, 0); 5782 mvmvif->csa_misbehave = false; 5783 return; 5784 } 5785 mvmvif->csa_misbehave = true; 5786 } 5787 mvmvif->csa_count = chsw->count; 5788 5789 guard(mvm)(mvm); 5790 if (mvmvif->csa_failed) 5791 return; 5792 5793 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5794 WIDE_ID(MAC_CONF_GROUP, 5795 CHANNEL_SWITCH_TIME_EVENT_CMD), 5796 0, sizeof(cmd), &cmd)); 5797 } 5798 5799 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5800 { 5801 int i; 5802 5803 if (!iwl_mvm_has_new_tx_api(mvm)) { 5804 /* we can't ask the firmware anything if it is dead */ 5805 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5806 &mvm->status)) 5807 return; 5808 if (drop) { 5809 guard(mvm)(mvm); 5810 iwl_mvm_flush_tx_path(mvm, 5811 iwl_mvm_flushable_queues(mvm) & queues); 5812 } else { 5813 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5814 } 5815 return; 5816 } 5817 5818 guard(mvm)(mvm); 5819 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5820 struct ieee80211_sta *sta; 5821 5822 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5823 lockdep_is_held(&mvm->mutex)); 5824 if (IS_ERR_OR_NULL(sta)) 5825 continue; 5826 5827 if (drop) 5828 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5829 else 5830 iwl_mvm_wait_sta_queues_empty(mvm, 5831 iwl_mvm_sta_from_mac80211(sta)); 5832 } 5833 } 5834 5835 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5836 u32 queues, bool drop) 5837 { 5838 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5839 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5840 struct iwl_mvm_sta *mvmsta; 5841 struct ieee80211_sta *sta; 5842 bool ap_sta_done = false; 5843 int i; 5844 u32 msk = 0; 5845 5846 if (!vif) { 5847 iwl_mvm_flush_no_vif(mvm, queues, drop); 5848 return; 5849 } 5850 5851 if (!drop && hweight16(vif->active_links) <= 1) { 5852 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5853 struct ieee80211_bss_conf *link_conf; 5854 5855 link_conf = wiphy_dereference(hw->wiphy, 5856 vif->link_conf[link_id]); 5857 if (WARN_ON(!link_conf)) 5858 return; 5859 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5860 drop = true; 5861 } 5862 5863 /* Make sure we're done with the deferred traffic before flushing */ 5864 flush_work(&mvm->add_stream_wk); 5865 5866 mutex_lock(&mvm->mutex); 5867 5868 /* flush the AP-station and all TDLS peers */ 5869 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5870 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5871 lockdep_is_held(&mvm->mutex)); 5872 if (IS_ERR_OR_NULL(sta)) 5873 continue; 5874 5875 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5876 if (mvmsta->vif != vif) 5877 continue; 5878 5879 if (sta == mvmvif->ap_sta) { 5880 if (ap_sta_done) 5881 continue; 5882 ap_sta_done = true; 5883 } 5884 5885 if (drop) { 5886 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5887 mvmsta->tfd_queue_msk)) 5888 IWL_ERR(mvm, "flush request fail\n"); 5889 } else { 5890 if (iwl_mvm_has_new_tx_api(mvm)) 5891 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5892 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5893 msk |= mvmsta->tfd_queue_msk; 5894 } 5895 } 5896 5897 mutex_unlock(&mvm->mutex); 5898 5899 /* this can take a while, and we may need/want other operations 5900 * to succeed while doing this, so do it without the mutex held 5901 * If the firmware is dead, this can't work... 5902 */ 5903 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5904 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5905 &mvm->status)) 5906 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5907 } 5908 5909 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5910 struct ieee80211_sta *sta) 5911 { 5912 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5913 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5914 struct iwl_mvm_link_sta *mvm_link_sta; 5915 struct ieee80211_link_sta *link_sta; 5916 int link_id; 5917 5918 guard(mvm)(mvm); 5919 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5920 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5921 lockdep_is_held(&mvm->mutex)); 5922 if (!mvm_link_sta) 5923 continue; 5924 5925 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5926 mvmsta->tfd_queue_msk)) 5927 IWL_ERR(mvm, "flush request fail\n"); 5928 } 5929 } 5930 5931 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 5932 struct survey_info *survey) 5933 { 5934 int chan_idx; 5935 enum nl80211_band band; 5936 int ret; 5937 5938 mutex_lock(&mvm->mutex); 5939 5940 if (!mvm->acs_survey) { 5941 ret = -ENOENT; 5942 goto out; 5943 } 5944 5945 /* Find and return the next entry that has a non-zero active time */ 5946 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5947 struct ieee80211_supported_band *sband = 5948 mvm->hw->wiphy->bands[band]; 5949 5950 if (!sband) 5951 continue; 5952 5953 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 5954 struct iwl_mvm_acs_survey_channel *info = 5955 &mvm->acs_survey->bands[band][chan_idx]; 5956 5957 if (!info->time) 5958 continue; 5959 5960 /* Found (the next) channel to report */ 5961 survey->channel = &sband->channels[chan_idx]; 5962 survey->filled = SURVEY_INFO_TIME | 5963 SURVEY_INFO_TIME_BUSY | 5964 SURVEY_INFO_TIME_RX | 5965 SURVEY_INFO_TIME_TX; 5966 survey->time = info->time; 5967 survey->time_busy = info->time_busy; 5968 survey->time_rx = info->time_rx; 5969 survey->time_tx = info->time_tx; 5970 survey->noise = info->noise; 5971 if (survey->noise < 0) 5972 survey->filled |= SURVEY_INFO_NOISE_DBM; 5973 5974 /* Clear time so that channel is only reported once */ 5975 info->time = 0; 5976 5977 ret = 0; 5978 goto out; 5979 } 5980 } 5981 5982 ret = -ENOENT; 5983 5984 out: 5985 mutex_unlock(&mvm->mutex); 5986 5987 return ret; 5988 } 5989 5990 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5991 struct survey_info *survey) 5992 { 5993 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5994 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5995 WIDE_ID(SYSTEM_GROUP, 5996 SYSTEM_STATISTICS_CMD), 5997 IWL_FW_CMD_VER_UNKNOWN); 5998 5999 memset(survey, 0, sizeof(*survey)); 6000 6001 if (!fw_has_capa(&mvm->fw->ucode_capa, 6002 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 6003 return -ENOENT; 6004 6005 /* 6006 * Return the beacon stats at index zero and pass on following indices 6007 * to the function returning the full survey, most likely for ACS 6008 * (Automatic Channel Selection). 6009 */ 6010 if (idx > 0) 6011 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 6012 6013 guard(mvm)(mvm); 6014 6015 if (iwl_mvm_firmware_running(mvm)) { 6016 int ret = iwl_mvm_request_statistics(mvm, false); 6017 6018 if (ret) 6019 return ret; 6020 } 6021 6022 survey->filled = SURVEY_INFO_TIME_RX | 6023 SURVEY_INFO_TIME_TX; 6024 6025 survey->time_rx = mvm->accu_radio_stats.rx_time + 6026 mvm->radio_stats.rx_time; 6027 do_div(survey->time_rx, USEC_PER_MSEC); 6028 6029 survey->time_tx = mvm->accu_radio_stats.tx_time + 6030 mvm->radio_stats.tx_time; 6031 do_div(survey->time_tx, USEC_PER_MSEC); 6032 6033 /* the new fw api doesn't support the following fields */ 6034 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 6035 return 0; 6036 6037 survey->filled |= SURVEY_INFO_TIME | 6038 SURVEY_INFO_TIME_SCAN; 6039 survey->time = mvm->accu_radio_stats.on_time_rf + 6040 mvm->radio_stats.on_time_rf; 6041 do_div(survey->time, USEC_PER_MSEC); 6042 6043 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 6044 mvm->radio_stats.on_time_scan; 6045 do_div(survey->time_scan, USEC_PER_MSEC); 6046 6047 return 0; 6048 } 6049 6050 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 6051 { 6052 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 6053 u32 gi_ltf; 6054 6055 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 6056 case RATE_MCS_CHAN_WIDTH_20: 6057 rinfo->bw = RATE_INFO_BW_20; 6058 break; 6059 case RATE_MCS_CHAN_WIDTH_40: 6060 rinfo->bw = RATE_INFO_BW_40; 6061 break; 6062 case RATE_MCS_CHAN_WIDTH_80: 6063 rinfo->bw = RATE_INFO_BW_80; 6064 break; 6065 case RATE_MCS_CHAN_WIDTH_160: 6066 rinfo->bw = RATE_INFO_BW_160; 6067 break; 6068 case RATE_MCS_CHAN_WIDTH_320: 6069 rinfo->bw = RATE_INFO_BW_320; 6070 break; 6071 } 6072 6073 if (format == RATE_MCS_MOD_TYPE_CCK || 6074 format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) { 6075 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 6076 6077 /* add the offset needed to get to the legacy ofdm indices */ 6078 if (format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) 6079 rate += IWL_FIRST_OFDM_RATE; 6080 6081 switch (rate) { 6082 case IWL_RATE_1M_INDEX: 6083 rinfo->legacy = 10; 6084 break; 6085 case IWL_RATE_2M_INDEX: 6086 rinfo->legacy = 20; 6087 break; 6088 case IWL_RATE_5M_INDEX: 6089 rinfo->legacy = 55; 6090 break; 6091 case IWL_RATE_11M_INDEX: 6092 rinfo->legacy = 110; 6093 break; 6094 case IWL_RATE_6M_INDEX: 6095 rinfo->legacy = 60; 6096 break; 6097 case IWL_RATE_9M_INDEX: 6098 rinfo->legacy = 90; 6099 break; 6100 case IWL_RATE_12M_INDEX: 6101 rinfo->legacy = 120; 6102 break; 6103 case IWL_RATE_18M_INDEX: 6104 rinfo->legacy = 180; 6105 break; 6106 case IWL_RATE_24M_INDEX: 6107 rinfo->legacy = 240; 6108 break; 6109 case IWL_RATE_36M_INDEX: 6110 rinfo->legacy = 360; 6111 break; 6112 case IWL_RATE_48M_INDEX: 6113 rinfo->legacy = 480; 6114 break; 6115 case IWL_RATE_54M_INDEX: 6116 rinfo->legacy = 540; 6117 } 6118 return; 6119 } 6120 6121 rinfo->nss = u32_get_bits(rate_n_flags, 6122 RATE_MCS_NSS_MSK) + 1; 6123 rinfo->mcs = format == RATE_MCS_MOD_TYPE_HT ? 6124 RATE_HT_MCS_INDEX(rate_n_flags) : 6125 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6126 6127 if (rate_n_flags & RATE_MCS_SGI_MSK) 6128 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6129 6130 switch (format) { 6131 case RATE_MCS_MOD_TYPE_EHT: 6132 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6133 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6134 break; 6135 case RATE_MCS_MOD_TYPE_HE: 6136 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6137 6138 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6139 6140 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6141 rinfo->bw = RATE_INFO_BW_HE_RU; 6142 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6143 } 6144 6145 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6146 case RATE_MCS_HE_TYPE_SU: 6147 case RATE_MCS_HE_TYPE_EXT_SU: 6148 if (gi_ltf == 0 || gi_ltf == 1) 6149 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6150 else if (gi_ltf == 2) 6151 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6152 else if (gi_ltf == 3) 6153 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6154 else 6155 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6156 break; 6157 case RATE_MCS_HE_TYPE_MU: 6158 if (gi_ltf == 0 || gi_ltf == 1) 6159 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6160 else if (gi_ltf == 2) 6161 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6162 else 6163 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6164 break; 6165 case RATE_MCS_HE_TYPE_TRIG: 6166 if (gi_ltf == 0 || gi_ltf == 1) 6167 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6168 else 6169 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6170 break; 6171 } 6172 6173 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6174 rinfo->he_dcm = 1; 6175 break; 6176 case RATE_MCS_MOD_TYPE_HT: 6177 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6178 break; 6179 case RATE_MCS_MOD_TYPE_VHT: 6180 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6181 break; 6182 } 6183 } 6184 6185 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6186 struct ieee80211_vif *vif, 6187 struct ieee80211_sta *sta, 6188 struct station_info *sinfo) 6189 { 6190 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6191 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6192 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6193 int i; 6194 6195 if (mvmsta->deflink.avg_energy) { 6196 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6197 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6198 } 6199 6200 if (iwl_mvm_has_tlc_offload(mvm)) { 6201 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6202 6203 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6204 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6205 } 6206 6207 /* if beacon filtering isn't on mac80211 does it anyway */ 6208 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6209 return; 6210 6211 if (!vif->cfg.assoc) 6212 return; 6213 6214 guard(mvm)(mvm); 6215 6216 if (sta != mvmvif->ap_sta) 6217 return; 6218 6219 if (iwl_mvm_request_statistics(mvm, false)) 6220 return; 6221 6222 sinfo->rx_beacon = 0; 6223 for_each_mvm_vif_valid_link(mvmvif, i) 6224 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6225 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6226 6227 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6228 if (mvmvif->deflink.beacon_stats.avg_signal) { 6229 /* firmware only reports a value after RXing a few beacons */ 6230 sinfo->rx_beacon_signal_avg = 6231 mvmvif->deflink.beacon_stats.avg_signal; 6232 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6233 } 6234 } 6235 6236 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6237 struct ieee80211_vif *vif, 6238 const struct ieee80211_mlme_event *mlme) 6239 { 6240 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6241 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6242 iwl_dbg_tlv_time_point(&mvm->fwrt, 6243 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6244 NULL); 6245 return; 6246 } 6247 6248 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6249 iwl_dbg_tlv_time_point(&mvm->fwrt, 6250 IWL_FW_INI_TIME_POINT_DEASSOC, 6251 NULL); 6252 return; 6253 } 6254 } 6255 6256 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6257 struct ieee80211_vif *vif, 6258 const struct ieee80211_event *event) 6259 { 6260 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6261 do { \ 6262 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6263 break; \ 6264 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6265 } while (0) 6266 6267 struct iwl_fw_dbg_trigger_tlv *trig; 6268 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6269 6270 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6271 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6272 return; 6273 } 6274 6275 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6276 FW_DBG_TRIGGER_MLME); 6277 if (!trig) 6278 return; 6279 6280 trig_mlme = (void *)trig->data; 6281 6282 if (event->u.mlme.data == ASSOC_EVENT) { 6283 if (event->u.mlme.status == MLME_DENIED) 6284 CHECK_MLME_TRIGGER(stop_assoc_denied, 6285 "DENIED ASSOC: reason %d", 6286 event->u.mlme.reason); 6287 else if (event->u.mlme.status == MLME_TIMEOUT) 6288 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6289 "ASSOC TIMEOUT"); 6290 } else if (event->u.mlme.data == AUTH_EVENT) { 6291 if (event->u.mlme.status == MLME_DENIED) 6292 CHECK_MLME_TRIGGER(stop_auth_denied, 6293 "DENIED AUTH: reason %d", 6294 event->u.mlme.reason); 6295 else if (event->u.mlme.status == MLME_TIMEOUT) 6296 CHECK_MLME_TRIGGER(stop_auth_timeout, 6297 "AUTH TIMEOUT"); 6298 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6299 CHECK_MLME_TRIGGER(stop_rx_deauth, 6300 "DEAUTH RX %d", event->u.mlme.reason); 6301 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6302 CHECK_MLME_TRIGGER(stop_tx_deauth, 6303 "DEAUTH TX %d", event->u.mlme.reason); 6304 } 6305 #undef CHECK_MLME_TRIGGER 6306 } 6307 6308 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6309 struct ieee80211_vif *vif, 6310 const struct ieee80211_event *event) 6311 { 6312 struct iwl_fw_dbg_trigger_tlv *trig; 6313 struct iwl_fw_dbg_trigger_ba *ba_trig; 6314 6315 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6316 FW_DBG_TRIGGER_BA); 6317 if (!trig) 6318 return; 6319 6320 ba_trig = (void *)trig->data; 6321 6322 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6323 return; 6324 6325 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6326 "BAR received from %pM, tid %d, ssn %d", 6327 event->u.ba.sta->addr, event->u.ba.tid, 6328 event->u.ba.ssn); 6329 } 6330 6331 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6332 struct ieee80211_vif *vif, 6333 const struct ieee80211_event *event) 6334 { 6335 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6336 6337 switch (event->type) { 6338 case MLME_EVENT: 6339 iwl_mvm_event_mlme_callback(mvm, vif, event); 6340 break; 6341 case BAR_RX_EVENT: 6342 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6343 break; 6344 case BA_FRAME_TIMEOUT: 6345 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6346 event->u.ba.tid); 6347 break; 6348 default: 6349 break; 6350 } 6351 } 6352 6353 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6354 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6355 enum iwl_mvm_rxq_notif_type type, 6356 bool sync, 6357 const void *data, u32 size) 6358 { 6359 DEFINE_RAW_FLEX(struct iwl_rxq_sync_cmd, cmd, payload, 6360 sizeof(struct iwl_mvm_internal_rxq_notif)); 6361 struct iwl_mvm_internal_rxq_notif *notif = 6362 (struct iwl_mvm_internal_rxq_notif *)cmd->payload; 6363 struct iwl_host_cmd hcmd = { 6364 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6365 .data[0] = cmd, 6366 .len[0] = __struct_size(cmd), 6367 .data[1] = data, 6368 .len[1] = size, 6369 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6370 }; 6371 int ret; 6372 6373 cmd->rxq_mask = cpu_to_le32(BIT(mvm->trans->info.num_rxqs) - 1); 6374 cmd->count = cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6375 size); 6376 notif->type = type; 6377 notif->sync = sync; 6378 6379 /* size must be a multiple of DWORD */ 6380 if (WARN_ON(cmd->count & cpu_to_le32(3))) 6381 return; 6382 6383 if (!iwl_mvm_has_new_rx_api(mvm)) 6384 return; 6385 6386 if (sync) { 6387 notif->cookie = mvm->queue_sync_cookie; 6388 mvm->queue_sync_state = (1 << mvm->trans->info.num_rxqs) - 1; 6389 } 6390 6391 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6392 if (ret) { 6393 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6394 goto out; 6395 } 6396 6397 if (sync) { 6398 lockdep_assert_held(&mvm->mutex); 6399 ret = wait_event_timeout(mvm->rx_sync_waitq, 6400 READ_ONCE(mvm->queue_sync_state) == 0, 6401 SYNC_RX_QUEUE_TIMEOUT); 6402 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6403 mvm->queue_sync_state, 6404 mvm->queue_sync_cookie); 6405 } 6406 6407 out: 6408 if (sync) { 6409 mvm->queue_sync_state = 0; 6410 mvm->queue_sync_cookie++; 6411 } 6412 } 6413 6414 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6415 { 6416 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6417 6418 guard(mvm)(mvm); 6419 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6420 } 6421 6422 int 6423 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6424 struct ieee80211_vif *vif, 6425 struct cfg80211_ftm_responder_stats *stats) 6426 { 6427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6428 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6429 6430 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6431 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6432 return -EINVAL; 6433 6434 mutex_lock(&mvm->mutex); 6435 *stats = mvm->ftm_resp_stats; 6436 mutex_unlock(&mvm->mutex); 6437 6438 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6439 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6440 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6441 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6442 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6443 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6444 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6445 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6446 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6447 6448 return 0; 6449 } 6450 6451 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6452 struct cfg80211_pmsr_request *request) 6453 { 6454 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6455 6456 guard(mvm)(mvm); 6457 return iwl_mvm_ftm_start(mvm, vif, request); 6458 } 6459 6460 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6461 struct cfg80211_pmsr_request *request) 6462 { 6463 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6464 6465 guard(mvm)(mvm); 6466 iwl_mvm_ftm_abort(mvm, request); 6467 } 6468 6469 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6470 { 6471 u8 protocol = ip_hdr(skb)->protocol; 6472 6473 if (!IS_ENABLED(CONFIG_INET)) 6474 return false; 6475 6476 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6477 } 6478 6479 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6480 struct sk_buff *head, 6481 struct sk_buff *skb) 6482 { 6483 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6484 6485 /* For now don't aggregate IPv6 in AMSDU */ 6486 if (skb->protocol != htons(ETH_P_IP)) 6487 return false; 6488 6489 if (!iwl_mvm_is_csum_supported(mvm)) 6490 return true; 6491 6492 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6493 } 6494 6495 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6496 struct ieee80211_vif *vif, 6497 struct cfg80211_set_hw_timestamp *hwts) 6498 { 6499 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6500 u32 protocols = 0; 6501 6502 /* HW timestamping is only supported for a specific station */ 6503 if (!hwts->macaddr) 6504 return -EOPNOTSUPP; 6505 6506 if (hwts->enable) 6507 protocols = 6508 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6509 6510 guard(mvm)(mvm); 6511 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6512 } 6513 6514 const struct ieee80211_ops iwl_mvm_hw_ops = { 6515 .tx = iwl_mvm_mac_tx, 6516 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6517 .ampdu_action = iwl_mvm_mac_ampdu_action, 6518 .get_antenna = iwl_mvm_op_get_antenna, 6519 .set_antenna = iwl_mvm_op_set_antenna, 6520 .start = iwl_mvm_mac_start, 6521 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6522 .stop = iwl_mvm_mac_stop, 6523 .add_interface = iwl_mvm_mac_add_interface, 6524 .remove_interface = iwl_mvm_mac_remove_interface, 6525 .config = iwl_mvm_mac_config, 6526 .prepare_multicast = iwl_mvm_prepare_multicast, 6527 .configure_filter = iwl_mvm_configure_filter, 6528 .config_iface_filter = iwl_mvm_config_iface_filter, 6529 .bss_info_changed = iwl_mvm_bss_info_changed, 6530 .hw_scan = iwl_mvm_mac_hw_scan, 6531 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6532 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6533 .sta_state = iwl_mvm_mac_sta_state, 6534 .sta_notify = iwl_mvm_mac_sta_notify, 6535 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6536 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6537 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6538 .link_sta_rc_update = iwl_mvm_sta_rc_update, 6539 .conf_tx = iwl_mvm_mac_conf_tx, 6540 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6541 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6542 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6543 .flush = iwl_mvm_mac_flush, 6544 .flush_sta = iwl_mvm_mac_flush_sta, 6545 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6546 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6547 .set_key = iwl_mvm_mac_set_key, 6548 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6549 .remain_on_channel = iwl_mvm_roc, 6550 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6551 .add_chanctx = iwl_mvm_add_chanctx, 6552 .remove_chanctx = iwl_mvm_remove_chanctx, 6553 .change_chanctx = iwl_mvm_change_chanctx, 6554 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6555 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6556 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6557 6558 .start_ap = iwl_mvm_start_ap, 6559 .stop_ap = iwl_mvm_stop_ap, 6560 .join_ibss = iwl_mvm_start_ibss, 6561 .leave_ibss = iwl_mvm_stop_ibss, 6562 6563 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6564 6565 .set_tim = iwl_mvm_set_tim, 6566 6567 .channel_switch = iwl_mvm_channel_switch, 6568 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6569 .post_channel_switch = iwl_mvm_post_channel_switch, 6570 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6571 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6572 6573 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6574 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6575 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6576 6577 .event_callback = iwl_mvm_mac_event_callback, 6578 6579 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6580 6581 #ifdef CONFIG_PM_SLEEP 6582 /* look at d3.c */ 6583 .suspend = iwl_mvm_suspend, 6584 .resume = iwl_mvm_resume, 6585 .set_wakeup = iwl_mvm_set_wakeup, 6586 .set_rekey_data = iwl_mvm_set_rekey_data, 6587 #if IS_ENABLED(CONFIG_IPV6) 6588 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6589 #endif 6590 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6591 #endif 6592 .get_survey = iwl_mvm_mac_get_survey, 6593 .sta_statistics = iwl_mvm_mac_sta_statistics, 6594 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6595 .start_pmsr = iwl_mvm_start_pmsr, 6596 .abort_pmsr = iwl_mvm_abort_pmsr, 6597 6598 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6599 #ifdef CONFIG_IWLWIFI_DEBUGFS 6600 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6601 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6602 #endif 6603 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6604 }; 6605