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