1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2025 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-nvm-utils.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 #define IWL_MVM_LIMITS(ap) \ 34 { \ 35 .max = 1, \ 36 .types = BIT(NL80211_IFTYPE_STATION), \ 37 }, \ 38 { \ 39 .max = 1, \ 40 .types = ap | \ 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | \ 42 BIT(NL80211_IFTYPE_P2P_GO), \ 43 }, \ 44 { \ 45 .max = 1, \ 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), \ 47 } 48 49 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 50 IWL_MVM_LIMITS(0) 51 }; 52 53 static const struct ieee80211_iface_limit iwl_mvm_limits_ap[] = { 54 IWL_MVM_LIMITS(BIT(NL80211_IFTYPE_AP)) 55 }; 56 57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 58 { 59 .num_different_channels = 2, 60 .max_interfaces = 3, 61 .limits = iwl_mvm_limits, 62 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 63 }, 64 { 65 .num_different_channels = 1, 66 .max_interfaces = 3, 67 .limits = iwl_mvm_limits_ap, 68 .n_limits = ARRAY_SIZE(iwl_mvm_limits_ap), 69 }, 70 }; 71 72 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 73 .max_peers = IWL_TOF_MAX_APS, 74 .report_ap_tsf = 1, 75 .randomize_mac_addr = 1, 76 77 .ftm = { 78 .supported = 1, 79 .asap = 1, 80 .non_asap = 1, 81 .request_lci = 1, 82 .request_civicloc = 1, 83 .trigger_based = 1, 84 .non_trigger_based = 1, 85 .max_bursts_exponent = -1, /* all supported */ 86 .max_ftms_per_burst = 0, /* no limits */ 87 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 88 BIT(NL80211_CHAN_WIDTH_20) | 89 BIT(NL80211_CHAN_WIDTH_40) | 90 BIT(NL80211_CHAN_WIDTH_80) | 91 BIT(NL80211_CHAN_WIDTH_160), 92 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 93 BIT(NL80211_PREAMBLE_HT) | 94 BIT(NL80211_PREAMBLE_VHT) | 95 BIT(NL80211_PREAMBLE_HE), 96 }, 97 }; 98 99 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 100 enum set_key_cmd cmd, 101 struct ieee80211_vif *vif, 102 struct ieee80211_sta *sta, 103 struct ieee80211_key_conf *key); 104 105 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 106 { 107 int i; 108 109 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 110 for (i = 0; i < NUM_PHY_CTX; i++) { 111 mvm->phy_ctxts[i].id = i; 112 mvm->phy_ctxts[i].ref = 0; 113 } 114 } 115 116 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 117 const char *alpha2, 118 enum iwl_mcc_source src_id, 119 bool *changed) 120 { 121 struct ieee80211_regdomain *regd = NULL; 122 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 124 struct iwl_mcc_update_resp_v8 *resp; 125 u8 resp_ver; 126 127 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 128 129 lockdep_assert_held(&mvm->mutex); 130 131 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 132 if (IS_ERR_OR_NULL(resp)) { 133 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 134 PTR_ERR_OR_ZERO(resp)); 135 resp = NULL; 136 goto out; 137 } 138 139 if (changed) { 140 u32 status = le32_to_cpu(resp->status); 141 142 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 143 status == MCC_RESP_ILLEGAL); 144 } 145 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 146 MCC_UPDATE_CMD, 0); 147 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 148 149 regd = iwl_parse_nvm_mcc_info(mvm->trans, 150 __le32_to_cpu(resp->n_channels), 151 resp->channels, 152 __le16_to_cpu(resp->mcc), 153 __le16_to_cpu(resp->geo_info), 154 le32_to_cpu(resp->cap), resp_ver); 155 /* Store the return source id */ 156 src_id = resp->source_id; 157 if (IS_ERR_OR_NULL(regd)) { 158 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 159 PTR_ERR_OR_ZERO(regd)); 160 goto out; 161 } 162 163 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 164 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 165 mvm->lar_regdom_set = true; 166 mvm->mcc_src = src_id; 167 168 if (!iwl_puncturing_is_allowed_in_bios(mvm->bios_enable_puncturing, 169 le16_to_cpu(resp->mcc))) 170 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING); 171 else 172 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags); 173 174 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 175 176 out: 177 kfree(resp); 178 return regd; 179 } 180 181 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 182 { 183 bool changed; 184 struct ieee80211_regdomain *regd; 185 186 if (!iwl_mvm_is_lar_supported(mvm)) 187 return; 188 189 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 190 if (!IS_ERR_OR_NULL(regd)) { 191 /* only update the regulatory core if changed */ 192 if (changed) 193 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 194 195 kfree(regd); 196 } 197 } 198 199 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 200 bool *changed) 201 { 202 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 203 iwl_mvm_is_wifi_mcc_supported(mvm) ? 204 MCC_SOURCE_GET_CURRENT : 205 MCC_SOURCE_OLD_FW, changed); 206 } 207 208 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 209 { 210 enum iwl_mcc_source used_src; 211 struct ieee80211_regdomain *regd; 212 int ret; 213 bool changed; 214 const struct ieee80211_regdomain *r = 215 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 216 217 if (!r) 218 return -ENOENT; 219 220 /* save the last source in case we overwrite it below */ 221 used_src = mvm->mcc_src; 222 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 223 /* Notify the firmware we support wifi location updates */ 224 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 225 if (!IS_ERR_OR_NULL(regd)) 226 kfree(regd); 227 } 228 229 /* Now set our last stored MCC and source */ 230 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 231 &changed); 232 if (IS_ERR_OR_NULL(regd)) 233 return -EIO; 234 235 /* update cfg80211 if the regdomain was changed or the caller explicitly 236 * asked to update regdomain 237 */ 238 if (changed || force_regd_sync) 239 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 240 else 241 ret = 0; 242 243 kfree(regd); 244 return ret; 245 } 246 247 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 248 static const u8 he_if_types_ext_capa_sta[] = { 249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 251 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 252 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 253 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 254 }; 255 256 static const u8 tm_if_types_ext_capa_sta[] = { 257 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 258 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 259 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 260 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 261 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 262 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 263 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 264 }; 265 266 /* Additional interface types for which extended capabilities are 267 * specified separately 268 */ 269 270 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 271 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 272 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 273 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 274 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 275 #define IWL_MVM_MLD_CAPA_OPS (FIELD_PREP_CONST( \ 276 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \ 277 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) | \ 278 IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT) 279 280 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 281 { 282 .iftype = NL80211_IFTYPE_STATION, 283 .extended_capabilities = he_if_types_ext_capa_sta, 284 .extended_capabilities_mask = he_if_types_ext_capa_sta, 285 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 286 /* relevant only if EHT is supported */ 287 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 288 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 289 }, 290 { 291 .iftype = NL80211_IFTYPE_STATION, 292 .extended_capabilities = tm_if_types_ext_capa_sta, 293 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 294 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 295 /* relevant only if EHT is supported */ 296 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 297 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 298 }, 299 }; 300 301 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 302 { 303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 304 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 305 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 306 return 0; 307 } 308 309 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 310 { 311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 312 313 /* This has been tested on those devices only */ 314 if (mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 315 mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_22000 && 316 mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_AX210) 317 return -EOPNOTSUPP; 318 319 if (!mvm->nvm_data) 320 return -EBUSY; 321 322 /* mac80211 ensures the device is not started, 323 * so the firmware cannot be running 324 */ 325 326 mvm->set_tx_ant = tx_ant; 327 mvm->set_rx_ant = rx_ant; 328 329 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 330 331 return 0; 332 } 333 334 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 335 { 336 struct ieee80211_hw *hw = mvm->hw; 337 int num_mac, ret, i; 338 static const u32 mvm_ciphers[] = { 339 WLAN_CIPHER_SUITE_WEP40, 340 WLAN_CIPHER_SUITE_WEP104, 341 WLAN_CIPHER_SUITE_TKIP, 342 WLAN_CIPHER_SUITE_CCMP, 343 }; 344 #ifdef CONFIG_PM_SLEEP 345 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 346 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 347 #endif 348 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 349 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 350 351 /* Tell mac80211 our characteristics */ 352 ieee80211_hw_set(hw, SIGNAL_DBM); 353 ieee80211_hw_set(hw, SPECTRUM_MGMT); 354 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 355 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 356 ieee80211_hw_set(hw, SUPPORTS_PS); 357 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 358 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 359 ieee80211_hw_set(hw, CONNECTION_MONITOR); 360 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 361 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 362 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 363 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 364 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 365 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 366 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 367 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 368 369 /* Set this early since we need to have it for the check below */ 370 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 371 !iwlwifi_mod_params.disable_11ax && 372 !iwlwifi_mod_params.disable_11be) { 373 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 374 /* we handle this already earlier, but need it for MLO */ 375 ieee80211_hw_set(hw, HANDLES_QUIET_CSA); 376 } 377 378 /* With MLD FW API, it tracks timing by itself, 379 * no need for any timing from the host 380 */ 381 if (!mvm->mld_api_is_used) 382 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 383 384 /* 385 * On older devices, enabling TX A-MSDU occasionally leads to 386 * something getting messed up, the command read from the FIFO 387 * gets out of sync and isn't a TX command, so that we have an 388 * assert EDC. 389 * 390 * It's not clear where the bug is, but since we didn't used to 391 * support A-MSDU until moving the mac80211 iTXQs, just leave it 392 * for older devices. We also don't see this issue on any newer 393 * devices. 394 */ 395 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 396 ieee80211_hw_set(hw, TX_AMSDU); 397 ieee80211_hw_set(hw, TX_FRAG_LIST); 398 399 if (iwl_mvm_has_tlc_offload(mvm)) { 400 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 401 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 402 } 403 404 /* We want to use the mac80211's reorder buffer for 9000 */ 405 if (iwl_mvm_has_new_rx_api(mvm) && 406 mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_9000) 407 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 408 409 if (fw_has_capa(&mvm->fw->ucode_capa, 410 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 411 ieee80211_hw_set(hw, AP_LINK_PS); 412 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 413 /* 414 * we absolutely need this for the new TX API since that comes 415 * with many more queues than the current code can deal with 416 * for station powersave 417 */ 418 return -EINVAL; 419 } 420 421 if (mvm->trans->info.num_rxqs > 1) 422 ieee80211_hw_set(hw, USES_RSS); 423 424 if (mvm->trans->info.max_skb_frags) 425 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 426 427 hw->queues = IEEE80211_NUM_ACS; 428 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 429 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 430 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 431 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 432 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 433 434 hw->radiotap_timestamp.units_pos = 435 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 436 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 437 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 438 hw->radiotap_timestamp.accuracy = 22; 439 440 if (!iwl_mvm_has_tlc_offload(mvm)) 441 hw->rate_control_algorithm = RS_NAME; 442 443 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 444 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 445 hw->max_tx_fragments = mvm->trans->info.max_skb_frags; 446 447 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 448 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 449 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 450 hw->wiphy->cipher_suites = mvm->ciphers; 451 452 if (iwl_mvm_has_new_rx_api(mvm)) { 453 mvm->ciphers[hw->wiphy->n_cipher_suites] = 454 WLAN_CIPHER_SUITE_GCMP; 455 hw->wiphy->n_cipher_suites++; 456 mvm->ciphers[hw->wiphy->n_cipher_suites] = 457 WLAN_CIPHER_SUITE_GCMP_256; 458 hw->wiphy->n_cipher_suites++; 459 } 460 461 if (iwlwifi_mod_params.swcrypto) 462 IWL_ERR(mvm, 463 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 464 if (!iwlwifi_mod_params.bt_coex_active) 465 IWL_ERR(mvm, 466 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 467 468 ieee80211_hw_set(hw, MFP_CAPABLE); 469 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 470 hw->wiphy->n_cipher_suites++; 471 if (iwl_mvm_has_new_rx_api(mvm)) { 472 mvm->ciphers[hw->wiphy->n_cipher_suites] = 473 WLAN_CIPHER_SUITE_BIP_GMAC_128; 474 hw->wiphy->n_cipher_suites++; 475 mvm->ciphers[hw->wiphy->n_cipher_suites] = 476 WLAN_CIPHER_SUITE_BIP_GMAC_256; 477 hw->wiphy->n_cipher_suites++; 478 } 479 480 wiphy_ext_feature_set(hw->wiphy, 481 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 482 wiphy_ext_feature_set(hw->wiphy, 483 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 484 485 if (fw_has_capa(&mvm->fw->ucode_capa, 486 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 487 wiphy_ext_feature_set(hw->wiphy, 488 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 489 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 490 } 491 492 if (sec_key_ver && 493 fw_has_capa(&mvm->fw->ucode_capa, 494 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 495 wiphy_ext_feature_set(hw->wiphy, 496 NL80211_EXT_FEATURE_BEACON_PROTECTION); 497 else if (fw_has_capa(&mvm->fw->ucode_capa, 498 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 499 wiphy_ext_feature_set(hw->wiphy, 500 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 501 502 if (fw_has_capa(&mvm->fw->ucode_capa, 503 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 504 hw->wiphy->hw_timestamp_max_peers = 1; 505 506 if (fw_has_capa(&mvm->fw->ucode_capa, 507 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 508 wiphy_ext_feature_set(hw->wiphy, 509 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 510 511 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 512 hw->wiphy->features |= 513 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 514 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 515 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 516 517 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 518 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 519 hw->chanctx_data_size = sizeof(u16); 520 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 521 522 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 523 BIT(NL80211_IFTYPE_P2P_CLIENT) | 524 BIT(NL80211_IFTYPE_AP) | 525 BIT(NL80211_IFTYPE_P2P_GO) | 526 BIT(NL80211_IFTYPE_P2P_DEVICE) | 527 BIT(NL80211_IFTYPE_ADHOC); 528 529 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 530 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 531 532 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 533 * the hw, preventing us to control which key(id) to use per MPDU. 534 * Till that's fixed we can't use Extended Key ID for the newer cards. 535 */ 536 if (!iwl_mvm_has_new_tx_api(mvm)) 537 wiphy_ext_feature_set(hw->wiphy, 538 NL80211_EXT_FEATURE_EXT_KEY_ID); 539 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 540 541 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 542 if (iwl_mvm_is_lar_supported(mvm)) 543 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 544 else 545 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 546 REGULATORY_DISABLE_BEACON_HINTS; 547 548 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 549 wiphy_ext_feature_set(hw->wiphy, 550 NL80211_EXT_FEATURE_DFS_CONCURRENT); 551 552 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 553 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 554 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 555 556 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 557 hw->wiphy->n_iface_combinations = 558 ARRAY_SIZE(iwl_mvm_iface_combinations); 559 560 hw->wiphy->max_remain_on_channel_duration = 10000; 561 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 562 563 /* Extract MAC address */ 564 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 565 hw->wiphy->addresses = mvm->addresses; 566 hw->wiphy->n_addresses = 1; 567 568 /* Extract additional MAC addresses if available */ 569 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 570 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 571 572 for (i = 1; i < num_mac; i++) { 573 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 574 ETH_ALEN); 575 mvm->addresses[i].addr[5]++; 576 hw->wiphy->n_addresses++; 577 } 578 579 iwl_mvm_reset_phy_ctxts(mvm); 580 581 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 582 583 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 584 585 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 586 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 587 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 588 589 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 590 mvm->max_scans = IWL_MAX_UMAC_SCANS; 591 else 592 mvm->max_scans = IWL_MAX_LMAC_SCANS; 593 594 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 595 hw->wiphy->bands[NL80211_BAND_2GHZ] = 596 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 597 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 598 hw->wiphy->bands[NL80211_BAND_5GHZ] = 599 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 600 601 if (fw_has_capa(&mvm->fw->ucode_capa, 602 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 603 fw_has_api(&mvm->fw->ucode_capa, 604 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 605 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 606 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 607 } 608 if (fw_has_capa(&mvm->fw->ucode_capa, 609 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 610 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 611 hw->wiphy->bands[NL80211_BAND_6GHZ] = 612 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 613 614 hw->wiphy->hw_version = mvm->trans->info.hw_id; 615 616 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 617 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 618 else 619 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 620 621 hw->wiphy->max_sched_scan_reqs = 1; 622 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 623 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 624 /* we create the 802.11 header and zero length SSID IE. */ 625 hw->wiphy->max_sched_scan_ie_len = 626 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 627 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 628 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 629 630 /* 631 * the firmware uses u8 for num of iterations, but 0xff is saved for 632 * infinite loop, so the maximum number of iterations is actually 254. 633 */ 634 hw->wiphy->max_sched_scan_plan_iterations = 254; 635 636 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 637 NL80211_FEATURE_LOW_PRIORITY_SCAN | 638 NL80211_FEATURE_P2P_GO_OPPPS | 639 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 640 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 641 642 /* when firmware supports RLC/SMPS offload, do not set these 643 * driver features, since it's no longer supported by driver. 644 */ 645 if (!iwl_mvm_has_rlc_offload(mvm)) 646 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS | 647 NL80211_FEATURE_DYNAMIC_SMPS; 648 649 if (fw_has_capa(&mvm->fw->ucode_capa, 650 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 651 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 652 if (fw_has_capa(&mvm->fw->ucode_capa, 653 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 654 hw->wiphy->features |= NL80211_FEATURE_QUIET; 655 656 if (fw_has_capa(&mvm->fw->ucode_capa, 657 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 658 hw->wiphy->features |= 659 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 660 661 if (fw_has_capa(&mvm->fw->ucode_capa, 662 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 663 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 664 665 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 666 IWL_FW_CMD_VER_UNKNOWN) >= 3) 667 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 668 669 if (fw_has_api(&mvm->fw->ucode_capa, 670 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 671 wiphy_ext_feature_set(hw->wiphy, 672 NL80211_EXT_FEATURE_SCAN_START_TIME); 673 wiphy_ext_feature_set(hw->wiphy, 674 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 675 } 676 677 if (iwl_mvm_is_oce_supported(mvm)) { 678 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 679 680 wiphy_ext_feature_set(hw->wiphy, 681 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 682 wiphy_ext_feature_set(hw->wiphy, 683 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 684 wiphy_ext_feature_set(hw->wiphy, 685 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 686 687 /* Old firmware also supports probe deferral and suppression */ 688 if (scan_ver < 15) 689 wiphy_ext_feature_set(hw->wiphy, 690 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 691 } 692 693 hw->wiphy->iftype_ext_capab = NULL; 694 hw->wiphy->num_iftype_ext_capab = 0; 695 696 if (mvm->nvm_data->sku_cap_11ax_enable && 697 !iwlwifi_mod_params.disable_11ax) { 698 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 699 hw->wiphy->num_iftype_ext_capab = 700 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 701 702 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 703 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 704 } 705 706 if (iwl_fw_lookup_cmd_ver(mvm->fw, 707 WIDE_ID(DATA_PATH_GROUP, 708 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 709 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 710 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 711 712 if (!hw->wiphy->iftype_ext_capab) { 713 hw->wiphy->num_iftype_ext_capab = 1; 714 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 715 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 716 } else { 717 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 718 } 719 } 720 721 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 722 TOF_RANGE_REQ_CMD), 723 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 724 wiphy_ext_feature_set(hw->wiphy, 725 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 726 727 if (fw_has_capa(&mvm->fw->ucode_capa, 728 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 729 wiphy_ext_feature_set(hw->wiphy, 730 NL80211_EXT_FEATURE_SECURE_LTF); 731 } 732 733 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 734 735 #ifdef CONFIG_PM_SLEEP 736 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 737 device_can_wakeup(mvm->trans->dev)) { 738 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 739 WIPHY_WOWLAN_DISCONNECT | 740 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 741 WIPHY_WOWLAN_RFKILL_RELEASE | 742 WIPHY_WOWLAN_NET_DETECT; 743 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 744 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 745 WIPHY_WOWLAN_4WAY_HANDSHAKE; 746 747 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 748 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 749 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 750 mvm->wowlan.max_nd_match_sets = 751 iwl_umac_scan_get_max_profiles(mvm->fw); 752 hw->wiphy->wowlan = &mvm->wowlan; 753 } 754 #endif 755 756 ret = iwl_mvm_leds_init(mvm); 757 if (ret) 758 return ret; 759 760 if (fw_has_capa(&mvm->fw->ucode_capa, 761 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 762 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 763 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 764 ieee80211_hw_set(hw, TDLS_WIDER_BW); 765 } 766 767 if (fw_has_capa(&mvm->fw->ucode_capa, 768 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 769 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 770 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 771 } 772 773 hw->netdev_features |= mvm->trans->mac_cfg->base->features; 774 if (!iwl_mvm_is_csum_supported(mvm)) 775 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 776 777 if (mvm->cfg->vht_mu_mimo_supported) 778 wiphy_ext_feature_set(hw->wiphy, 779 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 780 781 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 782 wiphy_ext_feature_set(hw->wiphy, 783 NL80211_EXT_FEATURE_PROTECTED_TWT); 784 785 iwl_mvm_vendor_cmds_register(mvm); 786 787 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 788 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 789 790 ret = ieee80211_register_hw(mvm->hw); 791 if (ret) { 792 iwl_mvm_leds_exit(mvm); 793 } 794 795 return ret; 796 } 797 798 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 799 struct ieee80211_sta *sta) 800 { 801 if (likely(sta)) { 802 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 803 return; 804 } else { 805 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 806 return; 807 } 808 809 ieee80211_free_txskb(mvm->hw, skb); 810 } 811 812 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 813 struct ieee80211_tx_control *control, struct sk_buff *skb) 814 { 815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 816 struct ieee80211_sta *sta = control->sta; 817 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 818 struct ieee80211_hdr *hdr = (void *)skb->data; 819 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 820 IEEE80211_TX_CTL_TX_OFFCHAN; 821 u32 link_id = u32_get_bits(info->control.flags, 822 IEEE80211_TX_CTRL_MLO_LINK); 823 struct ieee80211_sta *tmp_sta = sta; 824 825 if (iwl_mvm_is_radio_killed(mvm)) { 826 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 827 goto drop; 828 } 829 830 if (offchannel && 831 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) && 832 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 833 goto drop; 834 835 /* 836 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 837 * so we treat the others as broadcast 838 */ 839 if (ieee80211_is_mgmt(hdr->frame_control)) 840 sta = NULL; 841 842 /* this shouldn't even happen: just drop */ 843 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 844 !offchannel) 845 goto drop; 846 847 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 848 !ieee80211_is_probe_resp(hdr->frame_control)) { 849 /* translate MLD addresses to LINK addresses */ 850 struct ieee80211_link_sta *link_sta = 851 rcu_dereference(tmp_sta->link[link_id]); 852 struct ieee80211_bss_conf *link_conf = 853 rcu_dereference(info->control.vif->link_conf[link_id]); 854 struct ieee80211_mgmt *mgmt; 855 856 if (WARN_ON(!link_sta || !link_conf)) 857 goto drop; 858 859 /* if sta is NULL, the frame is a management frame */ 860 mgmt = (void *)hdr; 861 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 862 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 863 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 864 } 865 866 iwl_mvm_tx_skb(mvm, skb, sta); 867 return; 868 drop: 869 ieee80211_free_txskb(hw, skb); 870 } 871 872 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 873 { 874 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 875 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 876 struct sk_buff *skb = NULL; 877 878 /* 879 * No need for threads to be pending here, they can leave the first 880 * taker all the work. 881 * 882 * mvmtxq->tx_request logic: 883 * 884 * If 0, no one is currently TXing, set to 1 to indicate current thread 885 * will now start TX and other threads should quit. 886 * 887 * If 1, another thread is currently TXing, set to 2 to indicate to 888 * that thread that there was another request. Since that request may 889 * have raced with the check whether the queue is empty, the TXing 890 * thread should check the queue's status one more time before leaving. 891 * This check is done in order to not leave any TX hanging in the queue 892 * until the next TX invocation (which may not even happen). 893 * 894 * If 2, another thread is currently TXing, and it will already double 895 * check the queue, so do nothing. 896 */ 897 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 898 return; 899 900 rcu_read_lock(); 901 do { 902 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 903 &mvmtxq->state) && 904 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 905 &mvmtxq->state) && 906 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, 907 &mvmtxq->state) && 908 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 909 skb = ieee80211_tx_dequeue(hw, txq); 910 911 if (!skb) { 912 if (txq->sta) 913 IWL_DEBUG_TX(mvm, 914 "TXQ of sta %pM tid %d is now empty\n", 915 txq->sta->addr, 916 txq->tid); 917 break; 918 } 919 920 iwl_mvm_tx_skb(mvm, skb, txq->sta); 921 } 922 } while (atomic_dec_return(&mvmtxq->tx_request)); 923 rcu_read_unlock(); 924 } 925 926 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 927 struct ieee80211_txq *txq) 928 { 929 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 930 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 931 932 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 933 !txq->sta) { 934 iwl_mvm_mac_itxq_xmit(hw, txq); 935 return; 936 } 937 938 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 939 * to handle any packets we leave on the txq now 940 */ 941 942 spin_lock_bh(&mvm->add_stream_lock); 943 /* The list is being deleted only after the queue is fully allocated. */ 944 if (list_empty(&mvmtxq->list) && 945 /* recheck under lock */ 946 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 947 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 948 schedule_work(&mvm->add_stream_wk); 949 } 950 spin_unlock_bh(&mvm->add_stream_lock); 951 } 952 953 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 954 do { \ 955 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 956 break; \ 957 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 958 } while (0) 959 960 static void 961 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 962 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 963 enum ieee80211_ampdu_mlme_action action) 964 { 965 struct iwl_fw_dbg_trigger_tlv *trig; 966 struct iwl_fw_dbg_trigger_ba *ba_trig; 967 968 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 969 FW_DBG_TRIGGER_BA); 970 if (!trig) 971 return; 972 973 ba_trig = (void *)trig->data; 974 975 switch (action) { 976 case IEEE80211_AMPDU_TX_OPERATIONAL: { 977 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 978 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 979 980 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 981 "TX AGG START: MAC %pM tid %d ssn %d\n", 982 sta->addr, tid, tid_data->ssn); 983 break; 984 } 985 case IEEE80211_AMPDU_TX_STOP_CONT: 986 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 987 "TX AGG STOP: MAC %pM tid %d\n", 988 sta->addr, tid); 989 break; 990 case IEEE80211_AMPDU_RX_START: 991 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 992 "RX AGG START: MAC %pM tid %d ssn %d\n", 993 sta->addr, tid, rx_ba_ssn); 994 break; 995 case IEEE80211_AMPDU_RX_STOP: 996 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 997 "RX AGG STOP: MAC %pM tid %d\n", 998 sta->addr, tid); 999 break; 1000 default: 1001 break; 1002 } 1003 } 1004 1005 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1006 struct ieee80211_vif *vif, 1007 struct ieee80211_ampdu_params *params) 1008 { 1009 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1010 int ret; 1011 struct ieee80211_sta *sta = params->sta; 1012 enum ieee80211_ampdu_mlme_action action = params->action; 1013 u16 tid = params->tid; 1014 u16 *ssn = ¶ms->ssn; 1015 u16 buf_size = params->buf_size; 1016 bool amsdu = params->amsdu; 1017 u16 timeout = params->timeout; 1018 1019 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1020 sta->addr, tid, action); 1021 1022 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1023 return -EACCES; 1024 1025 mutex_lock(&mvm->mutex); 1026 1027 switch (action) { 1028 case IEEE80211_AMPDU_RX_START: 1029 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1030 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1031 struct iwl_mvm_vif *mvmvif; 1032 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1033 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1034 1035 mdata->opened_rx_ba_sessions = true; 1036 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1037 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1038 } 1039 if (!iwl_enable_rx_ampdu()) { 1040 ret = -EINVAL; 1041 break; 1042 } 1043 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1044 timeout); 1045 break; 1046 case IEEE80211_AMPDU_RX_STOP: 1047 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1048 timeout); 1049 break; 1050 case IEEE80211_AMPDU_TX_START: 1051 if (!iwl_enable_tx_ampdu()) { 1052 ret = -EINVAL; 1053 break; 1054 } 1055 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1056 break; 1057 case IEEE80211_AMPDU_TX_STOP_CONT: 1058 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1059 break; 1060 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1061 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1062 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1063 break; 1064 case IEEE80211_AMPDU_TX_OPERATIONAL: 1065 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1066 buf_size, amsdu); 1067 break; 1068 default: 1069 WARN_ON_ONCE(1); 1070 ret = -EINVAL; 1071 break; 1072 } 1073 1074 if (!ret) { 1075 u16 rx_ba_ssn = 0; 1076 1077 if (action == IEEE80211_AMPDU_RX_START) 1078 rx_ba_ssn = *ssn; 1079 1080 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1081 rx_ba_ssn, action); 1082 } 1083 mutex_unlock(&mvm->mutex); 1084 1085 return ret; 1086 } 1087 1088 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1089 struct ieee80211_vif *vif) 1090 { 1091 struct iwl_mvm *mvm = data; 1092 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1093 struct iwl_probe_resp_data *probe_data; 1094 unsigned int link_id; 1095 1096 mvmvif->uploaded = false; 1097 1098 spin_lock_bh(&mvm->time_event_lock); 1099 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1100 spin_unlock_bh(&mvm->time_event_lock); 1101 1102 mvmvif->roc_activity = ROC_NUM_ACTIVITIES; 1103 1104 mvmvif->bf_enabled = false; 1105 mvmvif->ba_enabled = false; 1106 mvmvif->ap_sta = NULL; 1107 1108 mvmvif->esr_active = false; 1109 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE; 1110 1111 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1112 mvmvif->link[link_id]->ap_sta_id = IWL_INVALID_STA; 1113 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1114 mvmvif->link[link_id]->phy_ctxt = NULL; 1115 mvmvif->link[link_id]->active = 0; 1116 mvmvif->link[link_id]->igtk = NULL; 1117 memset(&mvmvif->link[link_id]->bf_data, 0, 1118 sizeof(mvmvif->link[link_id]->bf_data)); 1119 } 1120 1121 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1122 lockdep_is_held(&mvm->mutex)); 1123 if (probe_data) 1124 kfree_rcu(probe_data, rcu_head); 1125 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1126 } 1127 1128 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1129 { 1130 struct iwl_mvm *mvm = data; 1131 struct iwl_mvm_sta *mvm_sta; 1132 struct ieee80211_vif *vif; 1133 int link_id; 1134 1135 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1136 vif = mvm_sta->vif; 1137 1138 if (!sta->valid_links) 1139 return; 1140 1141 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1142 struct iwl_mvm_link_sta *mvm_link_sta; 1143 1144 mvm_link_sta = 1145 rcu_dereference_check(mvm_sta->link[link_id], 1146 lockdep_is_held(&mvm->mutex)); 1147 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1148 /* 1149 * We have a link STA but the link is inactive in 1150 * mac80211. This will happen if we failed to 1151 * deactivate the link but mac80211 roll back the 1152 * deactivation of the link. 1153 * Delete the stale data to avoid issues later on. 1154 */ 1155 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1156 link_id); 1157 } 1158 } 1159 } 1160 1161 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1162 { 1163 iwl_mvm_stop_device(mvm); 1164 1165 mvm->cur_aid = 0; 1166 1167 mvm->scan_status = 0; 1168 mvm->ps_disabled = false; 1169 mvm->rfkill_safe_init_done = false; 1170 1171 /* just in case one was running */ 1172 iwl_mvm_cleanup_roc_te(mvm); 1173 ieee80211_remain_on_channel_expired(mvm->hw); 1174 1175 iwl_mvm_ftm_restart(mvm); 1176 1177 /* 1178 * cleanup all interfaces, even inactive ones, as some might have 1179 * gone down during the HW restart 1180 */ 1181 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1182 1183 /* cleanup stations as links may be gone after restart */ 1184 ieee80211_iterate_stations_atomic(mvm->hw, 1185 iwl_mvm_cleanup_sta_iterator, mvm); 1186 1187 mvm->p2p_device_vif = NULL; 1188 1189 iwl_mvm_reset_phy_ctxts(mvm); 1190 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1191 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1192 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1193 1194 ieee80211_wake_queues(mvm->hw); 1195 1196 mvm->rx_ba_sessions = 0; 1197 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1198 mvm->monitor_on = false; 1199 #ifdef CONFIG_IWLWIFI_DEBUGFS 1200 mvm->beacon_inject_active = false; 1201 #endif 1202 1203 /* keep statistics ticking */ 1204 iwl_mvm_accu_radio_stats(mvm); 1205 } 1206 1207 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1208 { 1209 bool fast_resume = false; 1210 int ret; 1211 1212 lockdep_assert_held(&mvm->mutex); 1213 1214 ret = iwl_mvm_mei_get_ownership(mvm); 1215 if (ret) 1216 return ret; 1217 1218 if (mvm->mei_nvm_data) { 1219 /* We got the NIC, we can now free the MEI NVM data */ 1220 kfree(mvm->mei_nvm_data); 1221 mvm->mei_nvm_data = NULL; 1222 1223 /* 1224 * We can't free the nvm_data we allocated based on the SAP 1225 * data because we registered to cfg80211 with the channels 1226 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1227 * just in order to be able free it later. 1228 * NULLify nvm_data so that we will read the NVM from the 1229 * firmware this time. 1230 */ 1231 mvm->temp_nvm_data = mvm->nvm_data; 1232 mvm->nvm_data = NULL; 1233 } 1234 1235 #ifdef CONFIG_PM_SLEEP 1236 /* fast_resume will be cleared by iwl_mvm_fast_resume */ 1237 fast_resume = mvm->fast_resume; 1238 1239 if (fast_resume) { 1240 iwl_mvm_mei_device_state(mvm, true); 1241 ret = iwl_mvm_fast_resume(mvm); 1242 if (ret) { 1243 iwl_mvm_stop_device(mvm); 1244 /* iwl_mvm_up() will be called further down */ 1245 } else { 1246 /* 1247 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon 1248 * mac_down() so that debugfs will stop honoring 1249 * requests after we flush all the workers. 1250 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again 1251 * now that we are back. This is a bit abusing the 1252 * flag since the firmware wasn't really ever stopped, 1253 * but this still serves the purpose. 1254 */ 1255 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1256 } 1257 } 1258 #endif /* CONFIG_PM_SLEEP */ 1259 1260 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1261 /* 1262 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1263 * so later code will - from now on - see that we're doing it. 1264 */ 1265 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1266 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1267 /* Clean up some internal and mac80211 state on restart */ 1268 iwl_mvm_restart_cleanup(mvm); 1269 } 1270 1271 /* we also want to load the firmware if fast_resume failed */ 1272 if (!fast_resume || ret) 1273 ret = iwl_mvm_up(mvm); 1274 1275 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1276 NULL); 1277 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1278 NULL); 1279 1280 mvm->last_reset_or_resume_time_jiffies = jiffies; 1281 1282 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1283 /* Something went wrong - we need to finish some cleanup 1284 * that normally iwl_mvm_mac_restart_complete() below 1285 * would do. 1286 */ 1287 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1288 } 1289 1290 return ret; 1291 } 1292 1293 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1294 { 1295 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1296 int ret; 1297 int retry, max_retry = 0; 1298 1299 mutex_lock(&mvm->mutex); 1300 1301 /* we are starting the mac not in error flow, and restart is enabled */ 1302 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1303 iwlwifi_mod_params.fw_restart) 1304 max_retry = IWL_MAX_INIT_RETRY; 1305 1306 for (retry = 0; retry <= max_retry; retry++) { 1307 ret = __iwl_mvm_mac_start(mvm); 1308 if (ret != -ETIMEDOUT) 1309 break; 1310 1311 IWL_ERR(mvm, "mac start retry %d\n", retry); 1312 } 1313 1314 mutex_unlock(&mvm->mutex); 1315 1316 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1317 1318 return ret; 1319 } 1320 1321 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1322 { 1323 int ret; 1324 1325 guard(mvm)(mvm); 1326 1327 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1328 1329 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1330 if (ret) 1331 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1332 ret); 1333 1334 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1335 1336 /* 1337 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1338 * of packets the FW sent out, so we must reconnect. 1339 */ 1340 iwl_mvm_teardown_tdls_peers(mvm); 1341 1342 IWL_INFO(mvm, "restart completed\n"); 1343 iwl_trans_finish_sw_reset(mvm->trans); 1344 1345 /* no need to lock, adding in parallel would schedule too */ 1346 if (!list_empty(&mvm->add_stream_txqs)) 1347 schedule_work(&mvm->add_stream_wk); 1348 } 1349 1350 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1351 enum ieee80211_reconfig_type reconfig_type) 1352 { 1353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1354 1355 switch (reconfig_type) { 1356 case IEEE80211_RECONFIG_TYPE_RESTART: 1357 iwl_mvm_restart_complete(mvm); 1358 break; 1359 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1360 break; 1361 } 1362 } 1363 1364 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend) 1365 { 1366 lockdep_assert_held(&mvm->mutex); 1367 1368 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1369 1370 /* firmware counters are obviously reset now, but we shouldn't 1371 * partially track so also clear the fw_reset_accu counters. 1372 */ 1373 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1374 1375 /* async_handlers_wk is now blocked */ 1376 1377 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1378 iwl_mvm_rm_aux_sta(mvm); 1379 1380 if (suspend && 1381 mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 1382 iwl_mvm_fast_suspend(mvm); 1383 /* From this point on, we won't touch the device */ 1384 iwl_mvm_mei_device_state(mvm, false); 1385 } else { 1386 iwl_mvm_stop_device(mvm); 1387 } 1388 1389 iwl_mvm_async_handlers_purge(mvm); 1390 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1391 1392 /* 1393 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1394 * hw (as restart_complete() won't be called in this case) and mac80211 1395 * won't execute the restart. 1396 * But make sure to cleanup interfaces that have gone down before/during 1397 * HW restart was requested. 1398 */ 1399 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1400 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1401 &mvm->status)) 1402 ieee80211_iterate_interfaces(mvm->hw, 0, 1403 iwl_mvm_cleanup_iterator, mvm); 1404 1405 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1406 * make sure there's nothing left there and warn if any is found. 1407 */ 1408 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1409 int i; 1410 1411 for (i = 0; i < mvm->max_scans; i++) { 1412 if (WARN_ONCE(mvm->scan_uid_status[i], 1413 "UMAC scan UID %d status was not cleaned\n", 1414 i)) 1415 mvm->scan_uid_status[i] = 0; 1416 } 1417 } 1418 } 1419 1420 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend) 1421 { 1422 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1423 1424 /* Stop internal MLO scan, if running */ 1425 mutex_lock(&mvm->mutex); 1426 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1427 mutex_unlock(&mvm->mutex); 1428 1429 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk); 1430 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1431 flush_work(&mvm->async_handlers_wk); 1432 flush_work(&mvm->add_stream_wk); 1433 1434 /* 1435 * Lock and clear the firmware running bit here already, so that 1436 * new commands coming in elsewhere, e.g. from debugfs, will not 1437 * be able to proceed. This is important here because one of those 1438 * debugfs files causes the firmware dump to be triggered, and if we 1439 * don't stop debugfs accesses before canceling that it could be 1440 * retriggered after we flush it but before we've cleared the bit. 1441 */ 1442 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1443 1444 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1445 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1446 1447 /* 1448 * The work item could be running or queued if the 1449 * ROC time event stops just as we get here. 1450 */ 1451 flush_work(&mvm->roc_done_wk); 1452 1453 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1454 1455 mutex_lock(&mvm->mutex); 1456 __iwl_mvm_mac_stop(mvm, suspend); 1457 mutex_unlock(&mvm->mutex); 1458 1459 /* 1460 * The worker might have been waiting for the mutex, let it run and 1461 * discover that its list is now empty. 1462 */ 1463 cancel_work_sync(&mvm->async_handlers_wk); 1464 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1465 } 1466 1467 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1468 { 1469 u16 i; 1470 1471 lockdep_assert_held(&mvm->mutex); 1472 1473 for (i = 0; i < NUM_PHY_CTX; i++) 1474 if (!mvm->phy_ctxts[i].ref) 1475 return &mvm->phy_ctxts[i]; 1476 1477 IWL_ERR(mvm, "No available PHY context\n"); 1478 return NULL; 1479 } 1480 1481 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, 1482 struct ieee80211_bss_conf *link_conf, 1483 s16 tx_power) 1484 { 1485 u32 cmd_id = REDUCE_TX_POWER_CMD; 1486 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(link_conf->vif); 1487 u32 mac_id = mvmvif->id; 1488 int len; 1489 struct iwl_dev_tx_power_cmd_v3_v8 cmd = { 1490 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK), 1491 .common.link_id = cpu_to_le32(mac_id), 1492 }; 1493 struct iwl_dev_tx_power_cmd cmd_v9_v10; 1494 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3); 1495 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ? 1496 IWL_DEV_MAX_TX_POWER : 8 * tx_power; 1497 void *cmd_data = &cmd; 1498 1499 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power); 1500 1501 if (cmd_ver > 8) { 1502 u32 link_id; 1503 1504 if (WARN_ON(!mvmvif->link[link_conf->link_id])) 1505 return -ENODEV; 1506 1507 link_id = mvmvif->link[link_conf->link_id]->fw_link_id; 1508 1509 /* Those fields sit on the same place for v9 and v10 */ 1510 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK); 1511 cmd_v9_v10.common.link_id = cpu_to_le32(link_id); 1512 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power); 1513 cmd_data = &cmd_v9_v10; 1514 } 1515 1516 if (cmd_ver == 10) 1517 len = sizeof(cmd_v9_v10.v10); 1518 else if (cmd_ver == 9) 1519 len = sizeof(cmd_v9_v10.v9); 1520 else if (cmd_ver == 8) 1521 len = sizeof(cmd.v8); 1522 else if (cmd_ver == 7) 1523 len = sizeof(cmd.v7); 1524 else if (cmd_ver == 6) 1525 len = sizeof(cmd.v6); 1526 else if (fw_has_api(&mvm->fw->ucode_capa, 1527 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1528 len = sizeof(cmd.v5); 1529 else if (fw_has_capa(&mvm->fw->ucode_capa, 1530 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1531 len = sizeof(cmd.v4); 1532 else 1533 len = sizeof(cmd.v3); 1534 1535 /* all structs have the same common part, add its length */ 1536 len += sizeof(cmd.common); 1537 1538 if (cmd_ver < 9) 1539 len += sizeof(cmd.per_band); 1540 1541 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data); 1542 1543 } 1544 1545 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1546 { 1547 struct ieee80211_hw *hw = data; 1548 int i; 1549 1550 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1551 struct iwl_mvm_txq *mvmtxq = 1552 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1553 1554 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1555 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1556 } 1557 } 1558 1559 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1560 struct ieee80211_vif *vif, 1561 struct ieee80211_bss_conf *link_conf) 1562 { 1563 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1564 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1565 int ret; 1566 1567 mutex_lock(&mvm->mutex); 1568 1569 if (vif->type == NL80211_IFTYPE_STATION) { 1570 struct iwl_mvm_sta *mvmsta; 1571 unsigned int link_id = link_conf->link_id; 1572 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1573 1574 mvmvif->csa_bcn_pending = false; 1575 mvmvif->csa_blocks_tx = false; 1576 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1577 1578 if (WARN_ON(!mvmsta)) { 1579 ret = -EIO; 1580 goto out_unlock; 1581 } 1582 1583 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1584 if (mvm->mld_api_is_used) 1585 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1586 else 1587 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1588 1589 if (!fw_has_capa(&mvm->fw->ucode_capa, 1590 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1591 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1592 if (ret) 1593 goto out_unlock; 1594 1595 iwl_mvm_stop_session_protection(mvm, vif); 1596 } 1597 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1598 struct iwl_mvm_txq *mvmtxq = 1599 iwl_mvm_txq_from_mac80211(vif->txq); 1600 1601 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1602 1603 local_bh_disable(); 1604 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1605 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1606 local_bh_enable(); 1607 1608 mvmvif->csa_blocks_tx = false; 1609 } 1610 1611 mvmvif->ps_disabled = false; 1612 1613 ret = iwl_mvm_power_update_ps(mvm); 1614 1615 out_unlock: 1616 if (mvmvif->csa_failed) 1617 ret = -EIO; 1618 mutex_unlock(&mvm->mutex); 1619 1620 return ret; 1621 } 1622 1623 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1624 struct ieee80211_vif *vif, 1625 struct ieee80211_bss_conf *link_conf) 1626 { 1627 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1628 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1629 struct iwl_chan_switch_te_cmd cmd = { 1630 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1631 mvmvif->color)), 1632 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1633 }; 1634 1635 /* 1636 * In the new flow since FW is in charge of the timing, 1637 * if driver has canceled the channel switch he will receive the 1638 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1639 */ 1640 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1641 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1642 return; 1643 1644 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1645 1646 mutex_lock(&mvm->mutex); 1647 if (!fw_has_capa(&mvm->fw->ucode_capa, 1648 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1649 iwl_mvm_remove_csa_period(mvm, vif); 1650 else 1651 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1652 WIDE_ID(MAC_CONF_GROUP, 1653 CHANNEL_SWITCH_TIME_EVENT_CMD), 1654 0, sizeof(cmd), &cmd)); 1655 mvmvif->csa_failed = true; 1656 mutex_unlock(&mvm->mutex); 1657 1658 /* If we're here, we can't support MLD */ 1659 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1660 } 1661 1662 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1663 { 1664 struct iwl_mvm_vif *mvmvif; 1665 struct ieee80211_vif *vif; 1666 1667 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1668 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1669 1670 /* Trigger disconnect (should clear the CSA state) */ 1671 ieee80211_chswitch_done(vif, false, 0); 1672 } 1673 1674 static u8 1675 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1676 { 1677 int data_start; 1678 int control_start; 1679 int bw; 1680 1681 if (chandef->width == NL80211_CHAN_WIDTH_320) 1682 bw = 320; 1683 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1684 bw = 160; 1685 else 1686 return 0; 1687 1688 /* data is bw wide so the start is half the width */ 1689 data_start = chandef->center_freq1 - bw / 2; 1690 /* control is 20Mhz width */ 1691 control_start = chandef->chan->center_freq - 10; 1692 1693 return (control_start - data_start) / 80; 1694 } 1695 1696 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1697 struct ieee80211_vif *vif) 1698 { 1699 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1700 int ret; 1701 1702 lockdep_assert_held(&mvm->mutex); 1703 1704 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1705 if (ret) { 1706 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1707 return ret; 1708 } 1709 1710 /* Only queue for this station is the mcast queue, 1711 * which shouldn't be in TFD mask anyway 1712 */ 1713 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1714 vif->type, 1715 IWL_STA_MULTICAST); 1716 } 1717 1718 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy, 1719 struct wiphy_work *wk) 1720 { 1721 struct iwl_mvm_vif *mvmvif = 1722 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work); 1723 struct iwl_mvm *mvm = mvmvif->mvm; 1724 struct ieee80211_vif *vif = 1725 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1726 1727 guard(mvm)(mvm); 1728 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION); 1729 } 1730 1731 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) 1732 { 1733 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif, 1734 mlo_int_scan_wk.work); 1735 struct ieee80211_vif *vif = 1736 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1737 1738 guard(mvm)(mvmvif->mvm); 1739 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif); 1740 } 1741 1742 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) 1743 { 1744 struct iwl_mvm_vif *mvmvif = 1745 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); 1746 struct iwl_mvm *mvm = mvmvif->mvm; 1747 struct ieee80211_vif *vif = 1748 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1749 1750 guard(mvm)(mvm); 1751 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); 1752 } 1753 1754 static void iwl_mvm_unblock_esr_tmp_non_bss(struct wiphy *wiphy, 1755 struct wiphy_work *wk) 1756 { 1757 struct iwl_mvm_vif *mvmvif = 1758 container_of(wk, struct iwl_mvm_vif, 1759 unblock_esr_tmp_non_bss_wk.work); 1760 struct iwl_mvm *mvm = mvmvif->mvm; 1761 struct ieee80211_vif *vif = 1762 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1763 1764 mutex_lock(&mvm->mutex); 1765 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TMP_NON_BSS); 1766 mutex_unlock(&mvm->mutex); 1767 } 1768 1769 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1770 { 1771 lockdep_assert_held(&mvm->mutex); 1772 1773 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1774 return; 1775 1776 INIT_DELAYED_WORK(&mvmvif->csa_work, 1777 iwl_mvm_channel_switch_disconnect_wk); 1778 1779 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk, 1780 iwl_mvm_prevent_esr_done_wk); 1781 1782 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, 1783 iwl_mvm_mlo_int_scan_wk); 1784 1785 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, 1786 iwl_mvm_unblock_esr_tpt); 1787 1788 wiphy_delayed_work_init(&mvmvif->unblock_esr_tmp_non_bss_wk, 1789 iwl_mvm_unblock_esr_tmp_non_bss); 1790 } 1791 1792 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1793 struct ieee80211_vif *vif) 1794 { 1795 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1796 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1797 int ret; 1798 int i; 1799 1800 mutex_lock(&mvm->mutex); 1801 1802 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1803 1804 mvmvif->mvm = mvm; 1805 1806 /* the first link always points to the default one */ 1807 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1808 mvmvif->deflink.active = 0; 1809 mvmvif->link[0] = &mvmvif->deflink; 1810 1811 vif->driver_flags = IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC; 1812 1813 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1814 if (ret) 1815 goto out; 1816 1817 /* 1818 * Not much to do here. The stack will not allow interface 1819 * types or combinations that we didn't advertise, so we 1820 * don't really have to check the types. 1821 */ 1822 1823 /* make sure that beacon statistics don't go backwards with FW reset */ 1824 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1825 for_each_mvm_vif_valid_link(mvmvif, i) 1826 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1827 mvmvif->link[i]->beacon_stats.num_beacons; 1828 1829 /* Allocate resources for the MAC context, and add it to the fw */ 1830 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1831 if (ret) 1832 goto out; 1833 1834 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1835 1836 /* Currently not much to do for NAN */ 1837 if (vif->type == NL80211_IFTYPE_NAN) { 1838 ret = 0; 1839 goto out; 1840 } 1841 1842 /* 1843 * The AP binding flow can be done only after the beacon 1844 * template is configured (which happens only in the mac80211 1845 * start_ap() flow), and adding the broadcast station can happen 1846 * only after the binding. 1847 * In addition, since modifying the MAC before adding a bcast 1848 * station is not allowed by the FW, delay the adding of MAC context to 1849 * the point where we can also add the bcast station. 1850 * In short: there's not much we can do at this point, other than 1851 * allocating resources :) 1852 */ 1853 if (vif->type == NL80211_IFTYPE_AP || 1854 vif->type == NL80211_IFTYPE_ADHOC) { 1855 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1856 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1857 ret = 0; 1858 goto out; 1859 } 1860 1861 mvmvif->features |= hw->netdev_features; 1862 1863 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1864 if (ret) 1865 goto out_unlock; 1866 1867 ret = iwl_mvm_power_update_mac(mvm); 1868 if (ret) 1869 goto out_remove_mac; 1870 1871 /* beacon filtering */ 1872 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1873 if (ret) 1874 goto out_remove_mac; 1875 1876 if (!mvm->bf_allowed_vif && 1877 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1878 mvm->bf_allowed_vif = mvmvif; 1879 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1880 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1881 } 1882 1883 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1884 mvm->p2p_device_vif = vif; 1885 1886 iwl_mvm_tcm_add_vif(mvm, vif); 1887 1888 if (vif->type == NL80211_IFTYPE_MONITOR) { 1889 mvm->monitor_on = true; 1890 mvm->monitor_p80 = 1891 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1892 } 1893 1894 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1895 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1896 1897 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1898 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1899 !mvm->csme_vif && mvm->mei_registered) { 1900 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1901 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1902 mvm->csme_vif = vif; 1903 } 1904 1905 out: 1906 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1907 vif->type == NL80211_IFTYPE_ADHOC)) 1908 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1909 1910 goto out_unlock; 1911 1912 out_remove_mac: 1913 mvmvif->deflink.phy_ctxt = NULL; 1914 iwl_mvm_mac_ctxt_remove(mvm, vif); 1915 out_unlock: 1916 mutex_unlock(&mvm->mutex); 1917 1918 return ret; 1919 } 1920 1921 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1922 struct ieee80211_vif *vif) 1923 { 1924 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1925 1926 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1927 /* 1928 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1929 * We assume here that all the packets sent to the OFFCHANNEL 1930 * queue are sent in ROC session. 1931 */ 1932 flush_work(&mvm->roc_done_wk); 1933 } 1934 1935 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1936 &mvmvif->prevent_esr_done_wk); 1937 1938 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1939 &mvmvif->mlo_int_scan_wk); 1940 1941 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 1942 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1943 &mvmvif->unblock_esr_tmp_non_bss_wk); 1944 1945 cancel_delayed_work_sync(&mvmvif->csa_work); 1946 } 1947 1948 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1949 struct ieee80211_vif *vif) 1950 { 1951 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1952 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1953 struct iwl_probe_resp_data *probe_data; 1954 1955 iwl_mvm_prepare_mac_removal(mvm, vif); 1956 1957 if (!(vif->type == NL80211_IFTYPE_AP || 1958 vif->type == NL80211_IFTYPE_ADHOC)) 1959 iwl_mvm_tcm_rm_vif(mvm, vif); 1960 1961 mutex_lock(&mvm->mutex); 1962 1963 if (vif == mvm->csme_vif) { 1964 iwl_mei_set_netdev(NULL); 1965 mvm->csme_vif = NULL; 1966 } 1967 1968 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1969 lockdep_is_held(&mvm->mutex)); 1970 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1971 if (probe_data) 1972 kfree_rcu(probe_data, rcu_head); 1973 1974 if (mvm->bf_allowed_vif == mvmvif) { 1975 mvm->bf_allowed_vif = NULL; 1976 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1977 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1978 } 1979 1980 if (vif->bss_conf.ftm_responder) 1981 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1982 1983 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1984 1985 /* 1986 * For AP/GO interface, the tear down of the resources allocated to the 1987 * interface is be handled as part of the stop_ap flow. 1988 */ 1989 if (vif->type == NL80211_IFTYPE_AP || 1990 vif->type == NL80211_IFTYPE_ADHOC) 1991 goto out; 1992 1993 iwl_mvm_power_update_mac(mvm); 1994 1995 /* Before the interface removal, mac80211 would cancel the ROC, and the 1996 * ROC worker would be scheduled if needed. The worker would be flushed 1997 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1998 * binding etc. so nothing needs to be done here. 1999 */ 2000 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2001 if (mvmvif->deflink.phy_ctxt) { 2002 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 2003 mvmvif->deflink.phy_ctxt = NULL; 2004 } 2005 mvm->p2p_device_vif = NULL; 2006 } 2007 2008 iwl_mvm_mac_ctxt_remove(mvm, vif); 2009 2010 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 2011 2012 if (vif->type == NL80211_IFTYPE_MONITOR) 2013 mvm->monitor_on = false; 2014 2015 out: 2016 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 2017 if (vif->type == NL80211_IFTYPE_AP || 2018 vif->type == NL80211_IFTYPE_ADHOC) { 2019 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 2020 iwl_mvm_dealloc_bcast_sta(mvm, vif); 2021 } 2022 2023 mutex_unlock(&mvm->mutex); 2024 } 2025 2026 struct iwl_mvm_mc_iter_data { 2027 struct iwl_mvm *mvm; 2028 int port_id; 2029 }; 2030 2031 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 2032 struct ieee80211_vif *vif) 2033 { 2034 struct iwl_mvm_mc_iter_data *data = _data; 2035 struct iwl_mvm *mvm = data->mvm; 2036 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 2037 struct iwl_host_cmd hcmd = { 2038 .id = MCAST_FILTER_CMD, 2039 .flags = CMD_ASYNC, 2040 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 2041 }; 2042 int ret, len; 2043 2044 /* if we don't have free ports, mcast frames will be dropped */ 2045 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 2046 return; 2047 2048 if (vif->type != NL80211_IFTYPE_STATION || 2049 !vif->cfg.assoc) 2050 return; 2051 2052 cmd->port_id = data->port_id++; 2053 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 2054 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 2055 2056 hcmd.len[0] = len; 2057 hcmd.data[0] = cmd; 2058 2059 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2060 if (ret) 2061 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 2062 } 2063 2064 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 2065 { 2066 struct iwl_mvm_mc_iter_data iter_data = { 2067 .mvm = mvm, 2068 }; 2069 int ret; 2070 2071 lockdep_assert_held(&mvm->mutex); 2072 2073 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 2074 return; 2075 2076 ieee80211_iterate_active_interfaces_atomic( 2077 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2078 iwl_mvm_mc_iface_iterator, &iter_data); 2079 2080 /* 2081 * Send a (synchronous) ech command so that we wait for the 2082 * multiple asynchronous MCAST_FILTER_CMD commands sent by 2083 * the interface iterator. Otherwise, we might get here over 2084 * and over again (by userspace just sending a lot of these) 2085 * and the CPU can send them faster than the firmware can 2086 * process them. 2087 * Note that the CPU is still faster - but with this we'll 2088 * actually send fewer commands overall because the CPU will 2089 * not schedule the work in mac80211 as frequently if it's 2090 * still running when rescheduled (possibly multiple times). 2091 */ 2092 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2093 if (ret) 2094 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2095 } 2096 2097 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2098 struct netdev_hw_addr_list *mc_list) 2099 { 2100 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2101 struct iwl_mcast_filter_cmd *cmd; 2102 struct netdev_hw_addr *addr; 2103 int addr_count; 2104 bool pass_all; 2105 int len; 2106 2107 addr_count = netdev_hw_addr_list_count(mc_list); 2108 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2109 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2110 if (pass_all) 2111 addr_count = 0; 2112 2113 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2114 cmd = kzalloc(len, GFP_ATOMIC); 2115 if (!cmd) 2116 return 0; 2117 2118 if (pass_all) { 2119 cmd->pass_all = 1; 2120 return (u64)(unsigned long)cmd; 2121 } 2122 2123 netdev_hw_addr_list_for_each(addr, mc_list) { 2124 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2125 cmd->count, addr->addr); 2126 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2127 addr->addr, ETH_ALEN); 2128 cmd->count++; 2129 } 2130 2131 return (u64)(unsigned long)cmd; 2132 } 2133 2134 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2135 unsigned int changed_flags, 2136 unsigned int *total_flags, u64 multicast) 2137 { 2138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2139 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2140 2141 guard(mvm)(mvm); 2142 2143 /* replace previous configuration */ 2144 kfree(mvm->mcast_filter_cmd); 2145 mvm->mcast_filter_cmd = cmd; 2146 2147 if (!cmd) 2148 goto out; 2149 2150 if (changed_flags & FIF_ALLMULTI) 2151 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2152 2153 if (cmd->pass_all) 2154 cmd->count = 0; 2155 2156 iwl_mvm_recalc_multicast(mvm); 2157 out: 2158 *total_flags = 0; 2159 } 2160 2161 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2162 struct ieee80211_vif *vif, 2163 unsigned int filter_flags, 2164 unsigned int changed_flags) 2165 { 2166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2167 2168 /* We support only filter for probe requests */ 2169 if (!(changed_flags & FIF_PROBE_REQ)) 2170 return; 2171 2172 /* Supported only for p2p client interfaces */ 2173 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2174 !vif->p2p) 2175 return; 2176 2177 guard(mvm)(mvm); 2178 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2179 } 2180 2181 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2182 { 2183 struct iwl_mu_group_mgmt_cmd cmd = {}; 2184 2185 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2186 WLAN_MEMBERSHIP_LEN); 2187 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2188 WLAN_USER_POSITION_LEN); 2189 2190 return iwl_mvm_send_cmd_pdu(mvm, 2191 WIDE_ID(DATA_PATH_GROUP, 2192 UPDATE_MU_GROUPS_CMD), 2193 0, sizeof(cmd), &cmd); 2194 } 2195 2196 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2197 struct ieee80211_vif *vif) 2198 { 2199 if (vif->bss_conf.mu_mimo_owner) { 2200 struct iwl_mu_group_mgmt_notif *notif = _data; 2201 2202 /* 2203 * MU-MIMO Group Id action frame is little endian. We treat 2204 * the data received from firmware as if it came from the 2205 * action frame, so no conversion is needed. 2206 */ 2207 ieee80211_update_mu_groups(vif, 0, 2208 (u8 *)¬if->membership_status, 2209 (u8 *)¬if->user_position); 2210 } 2211 } 2212 2213 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2214 struct iwl_rx_cmd_buffer *rxb) 2215 { 2216 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2217 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2218 2219 ieee80211_iterate_active_interfaces_atomic( 2220 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2221 iwl_mvm_mu_mimo_iface_iterator, notif); 2222 } 2223 2224 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2225 { 2226 u8 byte_num = ppe_pos_bit / 8; 2227 u8 bit_num = ppe_pos_bit % 8; 2228 u8 residue_bits; 2229 u8 res; 2230 2231 if (bit_num <= 5) 2232 return (ppe[byte_num] >> bit_num) & 2233 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2234 2235 /* 2236 * If bit_num > 5, we have to combine bits with next byte. 2237 * Calculate how many bits we need to take from current byte (called 2238 * here "residue_bits"), and add them to bits from next byte. 2239 */ 2240 2241 residue_bits = 8 - bit_num; 2242 2243 res = (ppe[byte_num + 1] & 2244 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2245 residue_bits; 2246 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2247 2248 return res; 2249 } 2250 2251 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2252 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2253 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2254 bool inheritance) 2255 { 2256 int i; 2257 2258 /* 2259 * FW currently supports only nss == MAX_HE_SUPP_NSS 2260 * 2261 * If nss > MAX: we can ignore values we don't support 2262 * If nss < MAX: we can set zeros in other streams 2263 */ 2264 if (nss > MAX_HE_SUPP_NSS) { 2265 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2266 MAX_HE_SUPP_NSS); 2267 nss = MAX_HE_SUPP_NSS; 2268 } 2269 2270 for (i = 0; i < nss; i++) { 2271 u8 ru_index_tmp = ru_index_bitmap << 1; 2272 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2273 u8 bw; 2274 2275 for (bw = 0; 2276 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2277 bw++) { 2278 ru_index_tmp >>= 1; 2279 2280 /* 2281 * According to the 11be spec, if for a specific BW the PPE Thresholds 2282 * isn't present - it should inherit the thresholds from the last 2283 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2284 * this inheritance - continue in this case 2285 */ 2286 if (!(ru_index_tmp & 1)) { 2287 if (inheritance) 2288 goto set_thresholds; 2289 else 2290 continue; 2291 } 2292 2293 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2294 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2295 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2296 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2297 2298 set_thresholds: 2299 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2300 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2301 } 2302 } 2303 } 2304 2305 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2306 struct ieee80211_link_sta *link_sta, 2307 struct iwl_he_pkt_ext_v2 *pkt_ext, 2308 bool inheritance) 2309 { 2310 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2311 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2312 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2313 u8 ru_index_bitmap = 2314 u8_get_bits(*ppe, 2315 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2316 /* Starting after PPE header */ 2317 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2318 2319 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2320 inheritance); 2321 } 2322 2323 static int 2324 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2325 u8 nominal_padding) 2326 { 2327 int low_th = -1; 2328 int high_th = -1; 2329 int i; 2330 2331 /* all the macros are the same for EHT and HE */ 2332 switch (nominal_padding) { 2333 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2334 low_th = IWL_HE_PKT_EXT_NONE; 2335 high_th = IWL_HE_PKT_EXT_NONE; 2336 break; 2337 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2338 low_th = IWL_HE_PKT_EXT_BPSK; 2339 high_th = IWL_HE_PKT_EXT_NONE; 2340 break; 2341 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2342 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2343 low_th = IWL_HE_PKT_EXT_NONE; 2344 high_th = IWL_HE_PKT_EXT_BPSK; 2345 break; 2346 } 2347 2348 if (low_th < 0 || high_th < 0) 2349 return -EINVAL; 2350 2351 /* Set the PPE thresholds accordingly */ 2352 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2353 u8 bw; 2354 2355 for (bw = 0; 2356 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2357 bw++) { 2358 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2359 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2360 } 2361 } 2362 2363 return 0; 2364 } 2365 2366 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2367 u8 nominal_padding) 2368 { 2369 int i; 2370 2371 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2372 u8 bw; 2373 2374 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2375 bw++) { 2376 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2377 2378 if (nominal_padding > 2379 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2380 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2381 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2382 else if (nominal_padding == 2383 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2384 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2385 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2386 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2387 } 2388 } 2389 } 2390 2391 /* Set the pkt_ext field according to PPE Thresholds element */ 2392 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2393 struct ieee80211_link_sta *link_sta, 2394 struct iwl_he_pkt_ext_v2 *pkt_ext) 2395 { 2396 u8 nominal_padding; 2397 int i, ret = 0; 2398 2399 if (WARN_ON(!link_sta)) 2400 return -EINVAL; 2401 2402 /* Initialize the PPE thresholds to "None" (7), as described in Table 2403 * 9-262ac of 80211.ax/D3.0. 2404 */ 2405 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2406 sizeof(struct iwl_he_pkt_ext_v2)); 2407 2408 if (link_sta->eht_cap.has_eht) { 2409 nominal_padding = 2410 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2411 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2412 2413 /* If PPE Thresholds exists, parse them into a FW-familiar 2414 * format. 2415 */ 2416 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2417 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2418 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2419 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2420 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2421 u8 ru_index_bitmap = 2422 u16_get_bits(*ppe, 2423 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2424 /* Starting after PPE header */ 2425 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2426 2427 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2428 ppe, ppe_pos_bit, true); 2429 /* EHT PPE Thresholds doesn't exist - set the API according to 2430 * HE PPE Tresholds 2431 */ 2432 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2433 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2434 /* Even though HE Capabilities IE doesn't contain PPE 2435 * Thresholds for BW 320Mhz, thresholds for this BW will 2436 * be filled in with the same values as 160Mhz, due to 2437 * the inheritance, as required. 2438 */ 2439 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2440 true); 2441 2442 /* According to the requirements, for MCSs 12-13 the 2443 * maximum value between HE PPE Threshold and Common 2444 * Nominal Packet Padding needs to be taken 2445 */ 2446 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2447 2448 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2449 * take the Thresholds from Common Nominal Packet Padding field 2450 */ 2451 } else { 2452 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2453 nominal_padding); 2454 } 2455 } else if (link_sta->he_cap.has_he) { 2456 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2457 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2458 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2459 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2460 false); 2461 /* PPE Thresholds doesn't exist - set the API PPE values 2462 * according to Common Nominal Packet Padding field. 2463 */ 2464 } else { 2465 nominal_padding = 2466 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2467 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2468 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2469 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2470 nominal_padding); 2471 } 2472 } 2473 2474 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2475 int bw; 2476 2477 for (bw = 0; 2478 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2479 bw++) { 2480 u8 *qam_th = 2481 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2482 2483 IWL_DEBUG_HT(mvm, 2484 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2485 i, bw, qam_th[0], qam_th[1]); 2486 } 2487 } 2488 return ret; 2489 } 2490 2491 /* 2492 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2493 * is enabled or not 2494 */ 2495 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2496 const struct iwl_mvm_vif_link_info *link_info, 2497 struct iwl_he_backoff_conf *trig_based_txf) 2498 { 2499 int i; 2500 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2501 bool mu_edca_enabled = true; 2502 2503 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2504 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2505 &link_info->queue_params[i].mu_edca_param_rec; 2506 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2507 2508 if (!link_info->queue_params[i].mu_edca) { 2509 mu_edca_enabled = false; 2510 break; 2511 } 2512 2513 trig_based_txf[ac].cwmin = 2514 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2515 trig_based_txf[ac].cwmax = 2516 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2517 trig_based_txf[ac].aifsn = 2518 cpu_to_le16(mu_edca->aifsn & 0xf); 2519 trig_based_txf[ac].mu_time = 2520 cpu_to_le16(mu_edca->mu_edca_timer); 2521 } 2522 2523 return mu_edca_enabled; 2524 } 2525 2526 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2527 { 2528 const struct ieee80211_supported_band *sband; 2529 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2530 2531 /* This capability is the same for all bands, 2532 * so take it from one of them. 2533 */ 2534 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2535 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2536 2537 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2538 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2539 } 2540 2541 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2542 struct ieee80211_link_sta *link_sta) 2543 { 2544 u8 *mac_cap_info = 2545 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2546 __le32 htc_flags = 0; 2547 2548 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2549 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2550 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2551 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2552 u8 link_adap = 2553 ((mac_cap_info[2] & 2554 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2555 (mac_cap_info[1] & 2556 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2557 2558 if (link_adap == 2) 2559 htc_flags |= 2560 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2561 else if (link_adap == 3) 2562 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2563 } 2564 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2565 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2566 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2567 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2568 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2569 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2570 2571 return htc_flags; 2572 } 2573 2574 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2575 struct ieee80211_vif *vif, u8 sta_id) 2576 { 2577 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2578 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2579 .sta_id = sta_id, 2580 .tid_limit = IWL_MAX_TID_COUNT, 2581 .bss_color = vif->bss_conf.he_bss_color.color, 2582 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2583 .frame_time_rts_th = 2584 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2585 }; 2586 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2587 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2588 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2589 int size; 2590 struct ieee80211_sta *sta; 2591 u32 flags; 2592 int i; 2593 void *cmd; 2594 2595 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2596 ver = 1; 2597 2598 switch (ver) { 2599 case 1: 2600 /* same layout as v2 except some data at the end */ 2601 cmd = &sta_ctxt_cmd_v2; 2602 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2603 break; 2604 case 2: 2605 cmd = &sta_ctxt_cmd_v2; 2606 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2607 break; 2608 case 3: 2609 cmd = &sta_ctxt_cmd; 2610 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2611 break; 2612 default: 2613 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2614 return; 2615 } 2616 2617 rcu_read_lock(); 2618 2619 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2620 if (IS_ERR_OR_NULL(sta)) { 2621 rcu_read_unlock(); 2622 WARN(1, "Can't find STA to configure HE\n"); 2623 return; 2624 } 2625 2626 if (!sta->deflink.he_cap.has_he) { 2627 rcu_read_unlock(); 2628 return; 2629 } 2630 2631 flags = 0; 2632 2633 /* Block 26-tone RU OFDMA transmissions */ 2634 if (mvmvif->deflink.he_ru_2mhz_block) 2635 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2636 2637 /* HTC flags */ 2638 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2639 2640 /* PPE Thresholds */ 2641 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2642 flags |= STA_CTXT_HE_PACKET_EXT; 2643 2644 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2645 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2646 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2647 2648 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2649 IEEE80211_HE_MAC_CAP2_ACK_EN) 2650 flags |= STA_CTXT_HE_ACK_ENABLED; 2651 2652 rcu_read_unlock(); 2653 2654 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2655 &sta_ctxt_cmd.trig_based_txf[0])) 2656 flags |= STA_CTXT_HE_MU_EDCA_CW; 2657 2658 if (vif->bss_conf.uora_exists) { 2659 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2660 2661 sta_ctxt_cmd.rand_alloc_ecwmin = 2662 vif->bss_conf.uora_ocw_range & 0x7; 2663 sta_ctxt_cmd.rand_alloc_ecwmax = 2664 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2665 } 2666 2667 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2668 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2669 2670 if (vif->bss_conf.nontransmitted) { 2671 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2672 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2673 vif->bss_conf.transmitter_bssid); 2674 sta_ctxt_cmd.max_bssid_indicator = 2675 vif->bss_conf.bssid_indicator; 2676 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2677 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2678 sta_ctxt_cmd.profile_periodicity = 2679 vif->bss_conf.profile_periodicity; 2680 } 2681 2682 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2683 2684 if (ver < 3) { 2685 /* fields before pkt_ext */ 2686 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2687 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2688 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2689 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2690 2691 /* pkt_ext */ 2692 for (i = 0; 2693 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2694 i++) { 2695 u8 bw; 2696 2697 for (bw = 0; 2698 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2699 bw++) { 2700 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2701 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2702 2703 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2704 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2705 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2706 } 2707 } 2708 2709 /* fields after pkt_ext */ 2710 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2711 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2712 sizeof(sta_ctxt_cmd_v2) - 2713 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2714 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2715 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2716 (u8 *)&sta_ctxt_cmd + 2717 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2718 sizeof(sta_ctxt_cmd) - 2719 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2720 sta_ctxt_cmd_v2.reserved3 = 0; 2721 } 2722 2723 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2724 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2725 } 2726 2727 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2728 u32 duration_override, unsigned int link_id) 2729 { 2730 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2731 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2732 2733 if (duration_override > duration) 2734 duration = duration_override; 2735 2736 /* Try really hard to protect the session and hear a beacon 2737 * The new session protection command allows us to protect the 2738 * session for a much longer time since the firmware will internally 2739 * create two events: a 300TU one with a very high priority that 2740 * won't be fragmented which should be enough for 99% of the cases, 2741 * and another one (which we configure here to be 900TU long) which 2742 * will have a slightly lower priority, but more importantly, can be 2743 * fragmented so that it'll allow other activities to run. 2744 */ 2745 if (fw_has_capa(&mvm->fw->ucode_capa, 2746 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2747 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2748 min_duration, false, 2749 link_id); 2750 else 2751 iwl_mvm_protect_session(mvm, vif, duration, 2752 min_duration, 500, false); 2753 } 2754 2755 /* Handle association common part to MLD and non-MLD modes */ 2756 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2757 struct ieee80211_vif *vif, 2758 u64 changes) 2759 { 2760 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2761 int ret; 2762 int link_id; 2763 2764 /* The firmware tracks the MU-MIMO group on its own. 2765 * However, on HW restart we should restore this data. 2766 */ 2767 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2768 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2769 ret = iwl_mvm_update_mu_groups(mvm, vif); 2770 if (ret) 2771 IWL_ERR(mvm, 2772 "failed to update VHT MU_MIMO groups\n"); 2773 } 2774 2775 iwl_mvm_recalc_multicast(mvm); 2776 2777 /* reset rssi values */ 2778 for_each_mvm_vif_valid_link(mvmvif, link_id) 2779 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2780 2781 iwl_mvm_bt_coex_vif_change(mvm); 2782 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2783 IEEE80211_SMPS_AUTOMATIC); 2784 if (fw_has_capa(&mvm->fw->ucode_capa, 2785 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2786 iwl_mvm_config_scan(mvm); 2787 } 2788 2789 /* Execute the common part for MLD and non-MLD modes */ 2790 void 2791 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2792 struct ieee80211_vif *vif, 2793 struct ieee80211_bss_conf *link_conf, 2794 u64 changes) 2795 { 2796 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2797 int ret; 2798 2799 if (changes & BSS_CHANGED_BEACON_INFO) { 2800 /* We received a beacon from the associated AP so 2801 * remove the session protection. 2802 */ 2803 iwl_mvm_stop_session_protection(mvm, vif); 2804 2805 iwl_mvm_sf_update(mvm, vif, false); 2806 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2807 } 2808 2809 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2810 /* Send power command on every beacon change, 2811 * because we may have not enabled beacon abort yet. 2812 */ 2813 BSS_CHANGED_BEACON_INFO)) { 2814 ret = iwl_mvm_power_update_mac(mvm); 2815 if (ret) 2816 IWL_ERR(mvm, "failed to update power mode\n"); 2817 } 2818 2819 if (changes & BSS_CHANGED_CQM) { 2820 struct iwl_mvm_vif_link_info *link_info = 2821 mvmvif->link[link_conf->link_id]; 2822 2823 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2824 if (link_info) 2825 link_info->bf_data.last_cqm_event = 0; 2826 2827 if (mvmvif->bf_enabled) { 2828 /* FIXME: need to update per link when FW API will 2829 * support it 2830 */ 2831 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2832 if (ret) 2833 IWL_ERR(mvm, 2834 "failed to update CQM thresholds\n"); 2835 } 2836 } 2837 2838 if (changes & BSS_CHANGED_BANDWIDTH) 2839 iwl_mvm_update_link_smps(vif, link_conf); 2840 2841 if (changes & BSS_CHANGED_TPE) { 2842 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2843 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2844 link_conf, 2845 false); 2846 } 2847 } 2848 2849 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2850 struct ieee80211_vif *vif, 2851 struct ieee80211_bss_conf *bss_conf, 2852 u64 changes) 2853 { 2854 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2855 int ret; 2856 int i; 2857 2858 /* 2859 * Re-calculate the tsf id, as the leader-follower relations depend 2860 * on the beacon interval, which was not known when the station 2861 * interface was added. 2862 */ 2863 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2864 if ((vif->bss_conf.he_support && 2865 !iwlwifi_mod_params.disable_11ax)) 2866 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2867 2868 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2869 } 2870 2871 /* Update MU EDCA params */ 2872 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2873 vif->cfg.assoc && 2874 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2875 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2876 2877 /* 2878 * If we're not associated yet, take the (new) BSSID before associating 2879 * so the firmware knows. If we're already associated, then use the old 2880 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2881 * branch for disassociation below. 2882 */ 2883 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2884 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2885 2886 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2887 if (ret) 2888 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2889 2890 /* after sending it once, adopt mac80211 data */ 2891 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2892 mvmvif->associated = vif->cfg.assoc; 2893 2894 if (changes & BSS_CHANGED_ASSOC) { 2895 if (vif->cfg.assoc) { 2896 mvmvif->session_prot_connection_loss = false; 2897 2898 /* clear statistics to get clean beacon counter */ 2899 iwl_mvm_request_statistics(mvm, true); 2900 for_each_mvm_vif_valid_link(mvmvif, i) 2901 memset(&mvmvif->link[i]->beacon_stats, 0, 2902 sizeof(mvmvif->link[i]->beacon_stats)); 2903 2904 /* add quota for this interface */ 2905 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2906 if (ret) { 2907 IWL_ERR(mvm, "failed to update quotas\n"); 2908 return; 2909 } 2910 2911 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2912 &mvm->status) && 2913 !fw_has_capa(&mvm->fw->ucode_capa, 2914 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2915 /* 2916 * If we're restarting then the firmware will 2917 * obviously have lost synchronisation with 2918 * the AP. It will attempt to synchronise by 2919 * itself, but we can make it more reliable by 2920 * scheduling a session protection time event. 2921 * 2922 * The firmware needs to receive a beacon to 2923 * catch up with synchronisation, use 110% of 2924 * the beacon interval. 2925 * 2926 * Set a large maximum delay to allow for more 2927 * than a single interface. 2928 * 2929 * For new firmware versions, rely on the 2930 * firmware. This is relevant for DCM scenarios 2931 * only anyway. 2932 */ 2933 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2934 iwl_mvm_protect_session(mvm, vif, dur, dur, 2935 5 * dur, false); 2936 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2937 &mvm->status) && 2938 !vif->bss_conf.dtim_period) { 2939 /* 2940 * If we're not restarting and still haven't 2941 * heard a beacon (dtim period unknown) then 2942 * make sure we still have enough minimum time 2943 * remaining in the time event, since the auth 2944 * might actually have taken quite a while 2945 * (especially for SAE) and so the remaining 2946 * time could be small without us having heard 2947 * a beacon yet. 2948 */ 2949 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2950 } 2951 2952 iwl_mvm_sf_update(mvm, vif, false); 2953 iwl_mvm_power_vif_assoc(mvm, vif); 2954 if (vif->p2p) { 2955 iwl_mvm_update_smps(mvm, vif, 2956 IWL_MVM_SMPS_REQ_PROT, 2957 IEEE80211_SMPS_DYNAMIC, 0); 2958 } 2959 } else if (mvmvif->deflink.ap_sta_id != IWL_INVALID_STA) { 2960 iwl_mvm_mei_host_disassociated(mvm); 2961 /* 2962 * If update fails - SF might be running in associated 2963 * mode while disassociated - which is forbidden. 2964 */ 2965 ret = iwl_mvm_sf_update(mvm, vif, false); 2966 WARN_ONCE(ret && 2967 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2968 &mvm->status), 2969 "Failed to update SF upon disassociation\n"); 2970 2971 /* remove quota for this interface */ 2972 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2973 if (ret) 2974 IWL_ERR(mvm, "failed to update quotas\n"); 2975 2976 /* this will take the cleared BSSID from bss_conf */ 2977 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2978 if (ret) 2979 IWL_ERR(mvm, 2980 "failed to update MAC %pM (clear after unassoc)\n", 2981 vif->addr); 2982 } 2983 2984 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2985 } 2986 2987 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2988 changes); 2989 } 2990 2991 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2992 struct ieee80211_vif *vif, 2993 int *ret) 2994 { 2995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2996 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2997 int i; 2998 2999 lockdep_assert_held(&mvm->mutex); 3000 3001 mvmvif->ap_assoc_sta_count = 0; 3002 3003 /* must be set before quota calculations */ 3004 mvmvif->ap_ibss_active = true; 3005 3006 /* send all the early keys to the device now */ 3007 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3008 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 3009 3010 if (!key) 3011 continue; 3012 3013 mvmvif->ap_early_keys[i] = NULL; 3014 3015 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 3016 if (*ret) 3017 return true; 3018 } 3019 3020 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3021 iwl_mvm_vif_set_low_latency(mvmvif, true, 3022 LOW_LATENCY_VIF_TYPE); 3023 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 3024 } 3025 3026 /* power updated needs to be done before quotas */ 3027 iwl_mvm_power_update_mac(mvm); 3028 3029 return false; 3030 } 3031 3032 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 3033 struct ieee80211_vif *vif, 3034 struct ieee80211_bss_conf *link_conf) 3035 { 3036 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3037 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3038 int ret; 3039 3040 mutex_lock(&mvm->mutex); 3041 3042 /* 3043 * Re-calculate the tsf id, as the leader-follower relations depend on 3044 * the beacon interval, which was not known when the AP interface 3045 * was added. 3046 */ 3047 if (vif->type == NL80211_IFTYPE_AP) 3048 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 3049 3050 /* For older devices need to send beacon template before adding mac 3051 * context. For the newer, the beacon is a resource that belongs to a 3052 * MAC, so need to send beacon template after adding the mac. 3053 */ 3054 if (mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 3055 /* Add the mac context */ 3056 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3057 if (ret) 3058 goto out_unlock; 3059 3060 /* Send the beacon template */ 3061 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3062 if (ret) 3063 goto out_unlock; 3064 } else { 3065 /* Send the beacon template */ 3066 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3067 if (ret) 3068 goto out_unlock; 3069 3070 /* Add the mac context */ 3071 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3072 if (ret) 3073 goto out_unlock; 3074 } 3075 3076 /* Perform the binding */ 3077 ret = iwl_mvm_binding_add_vif(mvm, vif); 3078 if (ret) 3079 goto out_remove; 3080 3081 /* 3082 * This is not very nice, but the simplest: 3083 * For older FWs adding the mcast sta before the bcast station may 3084 * cause assert 0x2b00. 3085 * This is fixed in later FW so make the order of removal depend on 3086 * the TLV 3087 */ 3088 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3089 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3090 if (ret) 3091 goto out_unbind; 3092 /* 3093 * Send the bcast station. At this stage the TBTT and DTIM time 3094 * events are added and applied to the scheduler 3095 */ 3096 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3097 if (ret) { 3098 iwl_mvm_rm_mcast_sta(mvm, vif); 3099 goto out_unbind; 3100 } 3101 } else { 3102 /* 3103 * Send the bcast station. At this stage the TBTT and DTIM time 3104 * events are added and applied to the scheduler 3105 */ 3106 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3107 if (ret) 3108 goto out_unbind; 3109 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3110 if (ret) { 3111 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3112 goto out_unbind; 3113 } 3114 } 3115 3116 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3117 goto out_failed; 3118 3119 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3120 if (ret) 3121 goto out_failed; 3122 3123 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3124 if (vif->p2p && mvm->p2p_device_vif) 3125 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3126 3127 iwl_mvm_bt_coex_vif_change(mvm); 3128 3129 /* we don't support TDLS during DCM */ 3130 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3131 iwl_mvm_teardown_tdls_peers(mvm); 3132 3133 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3134 3135 goto out_unlock; 3136 3137 out_failed: 3138 iwl_mvm_power_update_mac(mvm); 3139 mvmvif->ap_ibss_active = false; 3140 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3141 iwl_mvm_rm_mcast_sta(mvm, vif); 3142 out_unbind: 3143 iwl_mvm_binding_remove_vif(mvm, vif); 3144 out_remove: 3145 iwl_mvm_mac_ctxt_remove(mvm, vif); 3146 out_unlock: 3147 mutex_unlock(&mvm->mutex); 3148 return ret; 3149 } 3150 3151 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3152 struct ieee80211_vif *vif, 3153 struct ieee80211_bss_conf *link_conf) 3154 { 3155 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3156 } 3157 3158 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3159 struct ieee80211_vif *vif) 3160 { 3161 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3162 } 3163 3164 /* Common part for MLD and non-MLD ops */ 3165 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3166 struct ieee80211_vif *vif) 3167 { 3168 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3169 3170 lockdep_assert_held(&mvm->mutex); 3171 3172 iwl_mvm_prepare_mac_removal(mvm, vif); 3173 3174 /* Handle AP stop while in CSA */ 3175 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3176 iwl_mvm_remove_time_event(mvm, mvmvif, 3177 &mvmvif->time_event_data); 3178 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3179 mvmvif->csa_countdown = false; 3180 } 3181 3182 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3183 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3184 mvm->csa_tx_block_bcn_timeout = 0; 3185 } 3186 3187 mvmvif->ap_ibss_active = false; 3188 mvm->ap_last_beacon_gp2 = 0; 3189 3190 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3191 iwl_mvm_vif_set_low_latency(mvmvif, false, 3192 LOW_LATENCY_VIF_TYPE); 3193 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3194 } 3195 3196 iwl_mvm_bt_coex_vif_change(mvm); 3197 } 3198 3199 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3200 struct ieee80211_vif *vif, 3201 struct ieee80211_bss_conf *link_conf) 3202 { 3203 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3204 3205 guard(mvm)(mvm); 3206 3207 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3208 3209 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3210 if (vif->p2p && mvm->p2p_device_vif) 3211 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3212 3213 iwl_mvm_update_quotas(mvm, false, NULL); 3214 3215 iwl_mvm_ftm_responder_clear(mvm, vif); 3216 3217 /* 3218 * This is not very nice, but the simplest: 3219 * For older FWs removing the mcast sta before the bcast station may 3220 * cause assert 0x2b00. 3221 * This is fixed in later FW (which will stop beaconing when removing 3222 * bcast station). 3223 * So make the order of removal depend on the TLV 3224 */ 3225 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3226 iwl_mvm_rm_mcast_sta(mvm, vif); 3227 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3228 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3229 iwl_mvm_rm_mcast_sta(mvm, vif); 3230 iwl_mvm_binding_remove_vif(mvm, vif); 3231 3232 iwl_mvm_power_update_mac(mvm); 3233 3234 iwl_mvm_mac_ctxt_remove(mvm, vif); 3235 } 3236 3237 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3238 struct ieee80211_vif *vif, 3239 struct ieee80211_bss_conf *link_conf) 3240 { 3241 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3242 } 3243 3244 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3245 struct ieee80211_vif *vif) 3246 { 3247 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3248 } 3249 3250 static void 3251 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3252 struct ieee80211_vif *vif, 3253 struct ieee80211_bss_conf *bss_conf, 3254 u64 changes) 3255 { 3256 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3257 3258 /* Changes will be applied when the AP/IBSS is started */ 3259 if (!mvmvif->ap_ibss_active) 3260 return; 3261 3262 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3263 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3264 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3265 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3266 3267 /* Need to send a new beacon template to the FW */ 3268 if (changes & BSS_CHANGED_BEACON && 3269 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3270 IWL_WARN(mvm, "Failed updating beacon data\n"); 3271 3272 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3273 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3274 3275 if (ret) 3276 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3277 ret); 3278 } 3279 3280 } 3281 3282 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3283 struct ieee80211_vif *vif, 3284 struct ieee80211_bss_conf *bss_conf, 3285 u64 changes) 3286 { 3287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3288 3289 guard(mvm)(mvm); 3290 3291 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3292 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3293 3294 switch (vif->type) { 3295 case NL80211_IFTYPE_STATION: 3296 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3297 break; 3298 case NL80211_IFTYPE_AP: 3299 case NL80211_IFTYPE_ADHOC: 3300 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3301 break; 3302 case NL80211_IFTYPE_MONITOR: 3303 if (changes & BSS_CHANGED_MU_GROUPS) 3304 iwl_mvm_update_mu_groups(mvm, vif); 3305 break; 3306 default: 3307 /* shouldn't happen */ 3308 WARN_ON_ONCE(1); 3309 } 3310 3311 if (changes & BSS_CHANGED_TXPOWER) { 3312 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3313 bss_conf->txpower); 3314 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower); 3315 } 3316 } 3317 3318 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3319 struct ieee80211_scan_request *hw_req) 3320 { 3321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3322 3323 if (hw_req->req.n_channels == 0 || 3324 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3325 return -EINVAL; 3326 3327 guard(mvm)(mvm); 3328 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3329 } 3330 3331 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3332 struct ieee80211_vif *vif) 3333 { 3334 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3335 3336 guard(mvm)(mvm); 3337 3338 /* Due to a race condition, it's possible that mac80211 asks 3339 * us to stop a hw_scan when it's already stopped. This can 3340 * happen, for instance, if we stopped the scan ourselves, 3341 * called ieee80211_scan_completed() and the userspace called 3342 * cancel scan scan before ieee80211_scan_work() could run. 3343 * To handle that, simply return if the scan is not running. 3344 */ 3345 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3346 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3347 } 3348 3349 void 3350 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3351 struct ieee80211_sta *sta, u16 tids, 3352 int num_frames, 3353 enum ieee80211_frame_release_type reason, 3354 bool more_data) 3355 { 3356 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3357 3358 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3359 3360 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3361 tids, more_data, false); 3362 } 3363 3364 void 3365 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3366 struct ieee80211_sta *sta, u16 tids, 3367 int num_frames, 3368 enum ieee80211_frame_release_type reason, 3369 bool more_data) 3370 { 3371 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3372 3373 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3374 3375 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3376 tids, more_data, true); 3377 } 3378 3379 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3380 enum sta_notify_cmd cmd, 3381 struct ieee80211_sta *sta) 3382 { 3383 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3384 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3385 unsigned long txqs = 0, tids = 0; 3386 int tid; 3387 3388 /* 3389 * If we have TVQM then we get too high queue numbers - luckily 3390 * we really shouldn't get here with that because such hardware 3391 * should have firmware supporting buffer station offload. 3392 */ 3393 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3394 return; 3395 3396 spin_lock_bh(&mvmsta->lock); 3397 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3398 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3399 3400 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3401 continue; 3402 3403 __set_bit(tid_data->txq_id, &txqs); 3404 3405 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3406 continue; 3407 3408 __set_bit(tid, &tids); 3409 } 3410 3411 switch (cmd) { 3412 case STA_NOTIFY_SLEEP: 3413 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3414 ieee80211_sta_set_buffered(sta, tid, true); 3415 3416 if (txqs) 3417 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3418 /* 3419 * The fw updates the STA to be asleep. Tx packets on the Tx 3420 * queues to this station will not be transmitted. The fw will 3421 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3422 */ 3423 break; 3424 case STA_NOTIFY_AWAKE: 3425 if (WARN_ON(mvmsta->deflink.sta_id == IWL_INVALID_STA)) 3426 break; 3427 3428 if (txqs) 3429 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3430 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3431 break; 3432 default: 3433 break; 3434 } 3435 spin_unlock_bh(&mvmsta->lock); 3436 } 3437 3438 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3439 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3440 { 3441 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3442 } 3443 3444 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3445 { 3446 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3447 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3448 struct ieee80211_sta *sta; 3449 struct iwl_mvm_sta *mvmsta; 3450 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3451 3452 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3453 return; 3454 3455 rcu_read_lock(); 3456 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3457 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3458 rcu_read_unlock(); 3459 return; 3460 } 3461 3462 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3463 3464 if (!mvmsta->vif || 3465 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3466 rcu_read_unlock(); 3467 return; 3468 } 3469 3470 if (mvmsta->sleeping != sleeping) { 3471 mvmsta->sleeping = sleeping; 3472 __iwl_mvm_mac_sta_notify(mvm->hw, 3473 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3474 sta); 3475 ieee80211_sta_ps_transition(sta, sleeping); 3476 } 3477 3478 if (sleeping) { 3479 switch (notif->type) { 3480 case IWL_MVM_PM_EVENT_AWAKE: 3481 case IWL_MVM_PM_EVENT_ASLEEP: 3482 break; 3483 case IWL_MVM_PM_EVENT_UAPSD: 3484 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3485 break; 3486 case IWL_MVM_PM_EVENT_PS_POLL: 3487 ieee80211_sta_pspoll(sta); 3488 break; 3489 default: 3490 break; 3491 } 3492 } 3493 3494 rcu_read_unlock(); 3495 } 3496 3497 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3498 struct ieee80211_vif *vif, 3499 struct ieee80211_sta *sta) 3500 { 3501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3502 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3503 unsigned int link_id; 3504 3505 lockdep_assert_wiphy(mvm->hw->wiphy); 3506 3507 /* 3508 * This is called before mac80211 does RCU synchronisation, 3509 * so here we already invalidate our internal RCU-protected 3510 * station pointer. The rest of the code will thus no longer 3511 * be able to find the station this way, and we don't rely 3512 * on further RCU synchronisation after the sta_state() 3513 * callback deleted the station. 3514 * Since there's mvm->mutex here, no need to have RCU lock for 3515 * mvm_sta->link access. 3516 */ 3517 guard(mvm)(mvm); 3518 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3519 struct iwl_mvm_link_sta *link_sta; 3520 u32 sta_id; 3521 3522 if (!mvm_sta->link[link_id]) 3523 continue; 3524 3525 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3526 lockdep_is_held(&mvm->mutex)); 3527 sta_id = link_sta->sta_id; 3528 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3529 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3530 ERR_PTR(-ENOENT)); 3531 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3532 } 3533 } 3534 } 3535 3536 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3537 const u8 *bssid) 3538 { 3539 int i; 3540 3541 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3542 struct iwl_mvm_tcm_mac *mdata; 3543 3544 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3545 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3546 mdata->opened_rx_ba_sessions = false; 3547 } 3548 3549 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3550 return; 3551 3552 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3553 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3554 return; 3555 } 3556 3557 if (!vif->p2p && 3558 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3559 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3560 return; 3561 } 3562 3563 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3564 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3565 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3566 return; 3567 } 3568 } 3569 3570 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3571 } 3572 3573 static void 3574 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3575 struct ieee80211_vif *vif, u8 *peer_addr, 3576 enum nl80211_tdls_operation action) 3577 { 3578 struct iwl_fw_dbg_trigger_tlv *trig; 3579 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3580 3581 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3582 FW_DBG_TRIGGER_TDLS); 3583 if (!trig) 3584 return; 3585 3586 tdls_trig = (void *)trig->data; 3587 3588 if (!(tdls_trig->action_bitmap & BIT(action))) 3589 return; 3590 3591 if (tdls_trig->peer_mode && 3592 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3593 return; 3594 3595 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3596 "TDLS event occurred, peer %pM, action %d", 3597 peer_addr, action); 3598 } 3599 3600 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3601 bool tolerated; 3602 }; 3603 3604 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3605 struct cfg80211_bss *bss, 3606 void *_data) 3607 { 3608 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3609 const struct cfg80211_bss_ies *ies; 3610 const struct element *elem; 3611 3612 rcu_read_lock(); 3613 ies = rcu_dereference(bss->ies); 3614 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3615 ies->len); 3616 3617 if (!elem || elem->datalen < 10 || 3618 !(elem->data[10] & 3619 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3620 data->tolerated = false; 3621 } 3622 rcu_read_unlock(); 3623 } 3624 3625 static void 3626 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3627 struct ieee80211_vif *vif, 3628 unsigned int link_id, 3629 struct ieee80211_bss_conf *link_conf) 3630 { 3631 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3632 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3633 .tolerated = true, 3634 }; 3635 3636 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3637 !mvmvif->link[link_id])) 3638 return; 3639 3640 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3641 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3642 return; 3643 } 3644 3645 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3646 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3647 &iter_data); 3648 3649 /* 3650 * If there is at least one AP on radar channel that cannot 3651 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3652 */ 3653 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3654 } 3655 3656 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3657 struct ieee80211_vif *vif) 3658 { 3659 struct ieee80211_supported_band *sband; 3660 const struct ieee80211_sta_he_cap *he_cap; 3661 3662 if (vif->type != NL80211_IFTYPE_STATION) 3663 return; 3664 3665 if (!mvm->cca_40mhz_workaround) 3666 return; 3667 3668 /* decrement and check that we reached zero */ 3669 mvm->cca_40mhz_workaround--; 3670 if (mvm->cca_40mhz_workaround) 3671 return; 3672 3673 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3674 3675 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3676 3677 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3678 3679 if (he_cap) { 3680 /* we know that ours is writable */ 3681 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3682 3683 he->he_cap_elem.phy_cap_info[0] |= 3684 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3685 } 3686 } 3687 3688 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3689 struct ieee80211_vif *vif, 3690 struct iwl_mvm_sta *mvm_sta) 3691 { 3692 #if IS_ENABLED(CONFIG_IWLMEI) 3693 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3694 struct iwl_mei_conn_info conn_info = { 3695 .ssid_len = vif->cfg.ssid_len, 3696 }; 3697 3698 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3699 return; 3700 3701 if (!mvm->mei_registered) 3702 return; 3703 3704 /* FIXME: MEI needs to be updated for MLO */ 3705 if (!vif->bss_conf.chanreq.oper.chan) 3706 return; 3707 3708 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3709 3710 switch (mvm_sta->pairwise_cipher) { 3711 case WLAN_CIPHER_SUITE_TKIP: 3712 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3713 break; 3714 case WLAN_CIPHER_SUITE_CCMP: 3715 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3716 break; 3717 case WLAN_CIPHER_SUITE_GCMP: 3718 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3719 break; 3720 case WLAN_CIPHER_SUITE_GCMP_256: 3721 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3722 break; 3723 case 0: 3724 /* open profile */ 3725 break; 3726 default: 3727 /* cipher not supported, don't send anything to iwlmei */ 3728 return; 3729 } 3730 3731 switch (mvmvif->rekey_data.akm) { 3732 case WLAN_AKM_SUITE_SAE & 0xff: 3733 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3734 break; 3735 case WLAN_AKM_SUITE_PSK & 0xff: 3736 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3737 break; 3738 case WLAN_AKM_SUITE_8021X & 0xff: 3739 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3740 break; 3741 case 0: 3742 /* open profile */ 3743 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3744 break; 3745 default: 3746 /* auth method / AKM not supported */ 3747 /* TODO: All the FT vesions of these? */ 3748 return; 3749 } 3750 3751 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3752 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3753 3754 /* TODO: add support for collocated AP data */ 3755 iwl_mei_host_associated(&conn_info, NULL); 3756 #endif 3757 } 3758 3759 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3760 struct ieee80211_vif *vif, 3761 bool force_assoc_off) 3762 { 3763 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3764 } 3765 3766 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3767 struct ieee80211_vif *vif, 3768 struct ieee80211_sta *sta, 3769 enum ieee80211_sta_state old_state, 3770 enum ieee80211_sta_state new_state) 3771 { 3772 static const struct iwl_mvm_sta_state_ops callbacks = { 3773 .add_sta = iwl_mvm_add_sta, 3774 .update_sta = iwl_mvm_update_sta, 3775 .rm_sta = iwl_mvm_rm_sta, 3776 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3777 }; 3778 3779 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3780 &callbacks); 3781 } 3782 3783 /* FIXME: temporary making two assumptions in all sta handling functions: 3784 * (1) when setting sta state, the link exists and protected 3785 * (2) if a link is valid in sta then it's valid in vif (can 3786 * use same index in the link array) 3787 */ 3788 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3789 struct ieee80211_vif *vif, 3790 struct ieee80211_sta *sta) 3791 { 3792 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3793 unsigned int link_id; 3794 3795 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3796 struct ieee80211_bss_conf *conf = 3797 link_conf_dereference_check(vif, link_id); 3798 struct ieee80211_link_sta *link_sta = 3799 link_sta_dereference_check(sta, link_id); 3800 3801 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3802 continue; 3803 3804 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3805 mvmvif->link[link_id]->phy_ctxt->channel->band); 3806 } 3807 } 3808 3809 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3810 struct ieee80211_vif *vif, 3811 struct ieee80211_sta *sta) 3812 { 3813 struct ieee80211_link_sta *link_sta; 3814 unsigned int link_id; 3815 3816 /* Beacon interval check - firmware will crash if the beacon 3817 * interval is less than 16. We can't avoid connecting at all, 3818 * so refuse the station state change, this will cause mac80211 3819 * to abandon attempts to connect to this AP, and eventually 3820 * wpa_s will blocklist the AP... 3821 */ 3822 3823 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3824 struct ieee80211_bss_conf *link_conf = 3825 link_conf_dereference_protected(vif, link_id); 3826 3827 if (!link_conf) 3828 continue; 3829 3830 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3831 IWL_ERR(mvm, 3832 "Beacon interval %d for AP %pM is too small\n", 3833 link_conf->beacon_int, link_sta->addr); 3834 return false; 3835 } 3836 3837 link_conf->he_support = link_sta->he_cap.has_he; 3838 } 3839 3840 return true; 3841 } 3842 3843 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3844 struct ieee80211_vif *vif, 3845 struct ieee80211_sta *sta, 3846 bool is_sta) 3847 { 3848 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3849 struct ieee80211_link_sta *link_sta; 3850 unsigned int link_id; 3851 3852 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3853 struct ieee80211_bss_conf *link_conf = 3854 link_conf_dereference_protected(vif, link_id); 3855 3856 if (!link_conf || !mvmvif->link[link_id]) 3857 continue; 3858 3859 link_conf->he_support = link_sta->he_cap.has_he; 3860 3861 if (is_sta) { 3862 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3863 if (link_sta->he_cap.has_he) 3864 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3865 link_id, 3866 link_conf); 3867 } 3868 } 3869 } 3870 3871 static int 3872 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3873 struct ieee80211_vif *vif, 3874 struct ieee80211_sta *sta, 3875 const struct iwl_mvm_sta_state_ops *callbacks) 3876 { 3877 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3878 struct ieee80211_link_sta *link_sta; 3879 unsigned int i; 3880 int ret; 3881 3882 lockdep_assert_held(&mvm->mutex); 3883 3884 if (vif->type == NL80211_IFTYPE_STATION && 3885 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3886 return -EINVAL; 3887 3888 if (sta->tdls && 3889 (vif->p2p || 3890 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_TDLS_STA_COUNT || 3891 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3892 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3893 return -EBUSY; 3894 } 3895 3896 ret = callbacks->add_sta(mvm, vif, sta); 3897 if (sta->tdls && ret == 0) { 3898 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3899 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3900 NL80211_TDLS_SETUP); 3901 } 3902 3903 if (ret) 3904 return ret; 3905 3906 for_each_sta_active_link(vif, sta, link_sta, i) 3907 link_sta->agg.max_rc_amsdu_len = 1; 3908 3909 ieee80211_sta_recalc_aggregates(sta); 3910 3911 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3912 mvmvif->ap_sta = sta; 3913 3914 /* 3915 * Initialize the rates here already - this really tells 3916 * the firmware only what the supported legacy rates are 3917 * (may be) since it's initialized already from what the 3918 * AP advertised in the beacon/probe response. This will 3919 * allow the firmware to send auth/assoc frames with one 3920 * of the supported rates already, rather than having to 3921 * use a mandatory rate. 3922 * If we're the AP, we'll just assume mandatory rates at 3923 * this point, but we know nothing about the STA anyway. 3924 */ 3925 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3926 3927 return 0; 3928 } 3929 3930 static int 3931 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3932 struct iwl_mvm *mvm, 3933 struct ieee80211_vif *vif, 3934 struct ieee80211_sta *sta, 3935 const struct iwl_mvm_sta_state_ops *callbacks) 3936 { 3937 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3938 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3939 struct ieee80211_link_sta *link_sta; 3940 unsigned int link_id; 3941 3942 lockdep_assert_held(&mvm->mutex); 3943 3944 if (vif->type == NL80211_IFTYPE_AP) { 3945 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3946 mvmvif->ap_assoc_sta_count++; 3947 callbacks->mac_ctxt_changed(mvm, vif, false); 3948 3949 /* since the below is not for MLD API, it's ok to use 3950 * the default bss_conf 3951 */ 3952 if (!mvm->mld_api_is_used && 3953 (vif->bss_conf.he_support && 3954 !iwlwifi_mod_params.disable_11ax)) 3955 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3956 } else if (vif->type == NL80211_IFTYPE_STATION) { 3957 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3958 3959 callbacks->mac_ctxt_changed(mvm, vif, false); 3960 3961 if (!mvm->mld_api_is_used) 3962 goto out; 3963 3964 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3965 struct ieee80211_bss_conf *link_conf = 3966 link_conf_dereference_protected(vif, link_id); 3967 3968 if (WARN_ON(!link_conf)) 3969 return -EINVAL; 3970 if (!mvmvif->link[link_id]) 3971 continue; 3972 3973 iwl_mvm_link_changed(mvm, vif, link_conf, 3974 LINK_CONTEXT_MODIFY_ALL & 3975 ~LINK_CONTEXT_MODIFY_ACTIVE, 3976 true); 3977 } 3978 } 3979 3980 out: 3981 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3982 3983 return callbacks->update_sta(mvm, vif, sta); 3984 } 3985 3986 static int 3987 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3988 struct ieee80211_vif *vif, 3989 struct ieee80211_sta *sta, 3990 const struct iwl_mvm_sta_state_ops *callbacks) 3991 { 3992 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3993 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3994 3995 lockdep_assert_held(&mvm->mutex); 3996 3997 /* we don't support TDLS during DCM */ 3998 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3999 iwl_mvm_teardown_tdls_peers(mvm); 4000 4001 if (sta->tdls) { 4002 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4003 NL80211_TDLS_ENABLE_LINK); 4004 } else { 4005 /* enable beacon filtering */ 4006 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 4007 4008 mvmvif->authorized = 1; 4009 4010 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 4011 mvmvif->link_selection_res = vif->active_links; 4012 mvmvif->link_selection_primary = 4013 vif->active_links ? __ffs(vif->active_links) : 0; 4014 } 4015 4016 callbacks->mac_ctxt_changed(mvm, vif, false); 4017 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 4018 4019 memset(&mvmvif->last_esr_exit, 0, 4020 sizeof(mvmvif->last_esr_exit)); 4021 4022 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); 4023 4024 /* Block until FW notif will arrive */ 4025 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0); 4026 4027 /* when client is authorized (AP station marked as such), 4028 * try to enable the best link(s). 4029 */ 4030 if (vif->type == NL80211_IFTYPE_STATION && 4031 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4032 iwl_mvm_select_links(mvm, vif); 4033 } 4034 4035 mvm_sta->authorized = true; 4036 4037 /* MFP is set by default before the station is authorized. 4038 * Clear it here in case it's not used. 4039 */ 4040 if (!sta->mfp) { 4041 int ret = callbacks->update_sta(mvm, vif, sta); 4042 4043 if (ret) 4044 return ret; 4045 } 4046 4047 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4048 4049 return 0; 4050 } 4051 4052 static int 4053 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 4054 struct ieee80211_vif *vif, 4055 struct ieee80211_sta *sta, 4056 const struct iwl_mvm_sta_state_ops *callbacks) 4057 { 4058 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4059 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4060 4061 lockdep_assert_held(&mvm->mutex); 4062 4063 mvmsta->authorized = false; 4064 4065 /* once we move into assoc state, need to update rate scale to 4066 * disable using wide bandwidth 4067 */ 4068 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4069 4070 if (!sta->tdls) { 4071 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 4072 * yet to avoid sending high prio again for a little 4073 * time. 4074 */ 4075 mvmvif->authorized = 0; 4076 mvmvif->link_selection_res = 0; 4077 4078 /* disable beacon filtering */ 4079 iwl_mvm_disable_beacon_filter(mvm, vif); 4080 4081 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4082 &mvmvif->prevent_esr_done_wk); 4083 4084 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4085 &mvmvif->mlo_int_scan_wk); 4086 4087 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 4088 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4089 &mvmvif->unblock_esr_tmp_non_bss_wk); 4090 } 4091 4092 return 0; 4093 } 4094 4095 void iwl_mvm_smps_workaround(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4096 bool update) 4097 { 4098 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4099 4100 if (!iwl_mvm_has_rlc_offload(mvm) || 4101 iwl_fw_lookup_cmd_ver(mvm->fw, MAC_PM_POWER_TABLE, 0) >= 2) 4102 return; 4103 4104 mvmvif->ps_disabled = !vif->cfg.ps; 4105 4106 if (update) 4107 iwl_mvm_power_update_mac(mvm); 4108 } 4109 4110 /* Common part for MLD and non-MLD modes */ 4111 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4112 struct ieee80211_vif *vif, 4113 struct ieee80211_sta *sta, 4114 enum ieee80211_sta_state old_state, 4115 enum ieee80211_sta_state new_state, 4116 const struct iwl_mvm_sta_state_ops *callbacks) 4117 { 4118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4119 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4120 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4121 struct ieee80211_link_sta *link_sta; 4122 unsigned int link_id; 4123 int ret; 4124 4125 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4126 sta->addr, old_state, new_state); 4127 4128 /* 4129 * If we are in a STA removal flow and in DQA mode: 4130 * 4131 * This is after the sync_rcu part, so the queues have already been 4132 * flushed. No more TXs on their way in mac80211's path, and no more in 4133 * the queues. 4134 * Also, we won't be getting any new TX frames for this station. 4135 * What we might have are deferred TX frames that need to be taken care 4136 * of. 4137 * 4138 * Drop any still-queued deferred-frame before removing the STA, and 4139 * make sure the worker is no longer handling frames for this STA. 4140 */ 4141 if (old_state == IEEE80211_STA_NONE && 4142 new_state == IEEE80211_STA_NOTEXIST) { 4143 flush_work(&mvm->add_stream_wk); 4144 4145 /* 4146 * No need to make sure deferred TX indication is off since the 4147 * worker will already remove it if it was on 4148 */ 4149 4150 /* 4151 * Additionally, reset the 40 MHz capability if we disconnected 4152 * from the AP now. 4153 */ 4154 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4155 4156 /* Also free dup data just in case any assertions below fail */ 4157 kfree(mvm_sta->dup_data); 4158 } 4159 4160 mutex_lock(&mvm->mutex); 4161 4162 /* this would be a mac80211 bug ... but don't crash, unless we had a 4163 * firmware crash while we were activating a link, in which case it is 4164 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4165 * recovery flow since we spit tons of error messages anyway. 4166 */ 4167 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4168 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4169 !mvmvif->link[link_id]->phy_ctxt)) { 4170 mutex_unlock(&mvm->mutex); 4171 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4172 &mvm->status) ? 0 : -EINVAL; 4173 } 4174 } 4175 4176 /* track whether or not the station is associated */ 4177 mvm_sta->sta_state = new_state; 4178 4179 if (old_state == IEEE80211_STA_NOTEXIST && 4180 new_state == IEEE80211_STA_NONE) { 4181 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4182 callbacks); 4183 if (ret < 0) 4184 goto out_unlock; 4185 } else if (old_state == IEEE80211_STA_NONE && 4186 new_state == IEEE80211_STA_AUTH) { 4187 /* 4188 * EBS may be disabled due to previous failures reported by FW. 4189 * Reset EBS status here assuming environment has been changed. 4190 */ 4191 mvm->last_ebs_successful = true; 4192 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4193 ret = 0; 4194 } else if (old_state == IEEE80211_STA_AUTH && 4195 new_state == IEEE80211_STA_ASSOC) { 4196 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4197 callbacks); 4198 } else if (old_state == IEEE80211_STA_ASSOC && 4199 new_state == IEEE80211_STA_AUTHORIZED) { 4200 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4201 callbacks); 4202 iwl_mvm_smps_workaround(mvm, vif, true); 4203 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4204 new_state == IEEE80211_STA_ASSOC) { 4205 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4206 callbacks); 4207 } else if (old_state == IEEE80211_STA_ASSOC && 4208 new_state == IEEE80211_STA_AUTH) { 4209 if (vif->type == NL80211_IFTYPE_AP) { 4210 mvmvif->ap_assoc_sta_count--; 4211 callbacks->mac_ctxt_changed(mvm, vif, false); 4212 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4213 iwl_mvm_stop_session_protection(mvm, vif); 4214 ret = 0; 4215 } else if (old_state == IEEE80211_STA_AUTH && 4216 new_state == IEEE80211_STA_NONE) { 4217 ret = 0; 4218 } else if (old_state == IEEE80211_STA_NONE && 4219 new_state == IEEE80211_STA_NOTEXIST) { 4220 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4221 iwl_mvm_stop_session_protection(mvm, vif); 4222 mvmvif->ap_sta = NULL; 4223 } 4224 ret = callbacks->rm_sta(mvm, vif, sta); 4225 if (sta->tdls) { 4226 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4227 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4228 NL80211_TDLS_DISABLE_LINK); 4229 } 4230 4231 if (unlikely(ret && 4232 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4233 &mvm->status))) 4234 ret = 0; 4235 } else { 4236 ret = -EIO; 4237 } 4238 out_unlock: 4239 mutex_unlock(&mvm->mutex); 4240 4241 if (sta->tdls && ret == 0) { 4242 if (old_state == IEEE80211_STA_NOTEXIST && 4243 new_state == IEEE80211_STA_NONE) 4244 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4245 else if (old_state == IEEE80211_STA_NONE && 4246 new_state == IEEE80211_STA_NOTEXIST) 4247 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4248 } 4249 4250 return ret; 4251 } 4252 4253 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4254 { 4255 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4256 4257 mvm->rts_threshold = value; 4258 4259 return 0; 4260 } 4261 4262 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4263 struct ieee80211_link_sta *link_sta, u32 changed) 4264 { 4265 struct ieee80211_sta *sta = link_sta->sta; 4266 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4267 4268 if (changed & (IEEE80211_RC_BW_CHANGED | 4269 IEEE80211_RC_SUPP_RATES_CHANGED | 4270 IEEE80211_RC_NSS_CHANGED)) 4271 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4272 4273 if (vif->type == NL80211_IFTYPE_STATION && 4274 changed & IEEE80211_RC_NSS_CHANGED) 4275 iwl_mvm_sf_update(mvm, vif, false); 4276 } 4277 4278 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4279 struct ieee80211_vif *vif, 4280 unsigned int link_id, u16 ac, 4281 const struct ieee80211_tx_queue_params *params) 4282 { 4283 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4284 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4285 4286 mvmvif->deflink.queue_params[ac] = *params; 4287 4288 /* 4289 * No need to update right away, we'll get BSS_CHANGED_QOS 4290 * The exception is P2P_DEVICE interface which needs immediate update. 4291 */ 4292 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4293 guard(mvm)(mvm); 4294 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4295 } 4296 return 0; 4297 } 4298 4299 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4300 struct ieee80211_vif *vif, 4301 struct ieee80211_prep_tx_info *info) 4302 { 4303 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4304 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4305 4306 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4307 return; 4308 4309 guard(mvm)(mvm); 4310 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4311 } 4312 4313 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4314 struct ieee80211_vif *vif, 4315 struct ieee80211_prep_tx_info *info) 4316 { 4317 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4318 4319 /* for successful cases (auth/assoc), don't cancel session protection */ 4320 if (info->success) 4321 return; 4322 4323 guard(mvm)(mvm); 4324 iwl_mvm_stop_session_protection(mvm, vif); 4325 } 4326 4327 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4328 struct ieee80211_vif *vif, 4329 struct cfg80211_sched_scan_request *req, 4330 struct ieee80211_scan_ies *ies) 4331 { 4332 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4333 4334 guard(mvm)(mvm); 4335 4336 if (!vif->cfg.idle) 4337 return -EBUSY; 4338 4339 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4340 } 4341 4342 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4343 struct ieee80211_vif *vif) 4344 { 4345 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4346 int ret; 4347 4348 mutex_lock(&mvm->mutex); 4349 4350 /* Due to a race condition, it's possible that mac80211 asks 4351 * us to stop a sched_scan when it's already stopped. This 4352 * can happen, for instance, if we stopped the scan ourselves, 4353 * called ieee80211_sched_scan_stopped() and the userspace called 4354 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4355 * could run. To handle this, simply return if the scan is 4356 * not running. 4357 */ 4358 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4359 mutex_unlock(&mvm->mutex); 4360 return 0; 4361 } 4362 4363 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4364 mutex_unlock(&mvm->mutex); 4365 iwl_mvm_wait_for_async_handlers(mvm); 4366 4367 return ret; 4368 } 4369 4370 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4371 enum set_key_cmd cmd, 4372 struct ieee80211_vif *vif, 4373 struct ieee80211_sta *sta, 4374 struct ieee80211_key_conf *key) 4375 { 4376 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4377 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4378 struct iwl_mvm_sta *mvmsta = NULL; 4379 struct iwl_mvm_key_pn *ptk_pn = NULL; 4380 int keyidx = key->keyidx; 4381 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4382 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4383 int ret, i; 4384 u8 key_offset; 4385 4386 if (sta) 4387 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4388 4389 switch (key->cipher) { 4390 case WLAN_CIPHER_SUITE_TKIP: 4391 if (!mvm->trans->mac_cfg->gen2) { 4392 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4393 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4394 } else if (vif->type == NL80211_IFTYPE_STATION) { 4395 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4396 } else { 4397 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4398 return -EOPNOTSUPP; 4399 } 4400 break; 4401 case WLAN_CIPHER_SUITE_CCMP: 4402 case WLAN_CIPHER_SUITE_GCMP: 4403 case WLAN_CIPHER_SUITE_GCMP_256: 4404 if (!iwl_mvm_has_new_tx_api(mvm)) 4405 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4406 break; 4407 case WLAN_CIPHER_SUITE_AES_CMAC: 4408 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4409 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4410 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4411 break; 4412 case WLAN_CIPHER_SUITE_WEP40: 4413 case WLAN_CIPHER_SUITE_WEP104: 4414 if (vif->type == NL80211_IFTYPE_STATION) 4415 break; 4416 if (iwl_mvm_has_new_tx_api(mvm)) 4417 return -EOPNOTSUPP; 4418 /* support HW crypto on TX */ 4419 return 0; 4420 default: 4421 return -EOPNOTSUPP; 4422 } 4423 4424 switch (cmd) { 4425 case SET_KEY: 4426 if (vif->type == NL80211_IFTYPE_STATION && 4427 (keyidx == 6 || keyidx == 7)) 4428 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4429 key); 4430 4431 if ((vif->type == NL80211_IFTYPE_ADHOC || 4432 vif->type == NL80211_IFTYPE_AP) && !sta) { 4433 /* 4434 * GTK on AP interface is a TX-only key, return 0; 4435 * on IBSS they're per-station and because we're lazy 4436 * we don't support them for RX, so do the same. 4437 * CMAC/GMAC in AP/IBSS modes must be done in software 4438 * on older NICs. 4439 * 4440 * Except, of course, beacon protection - it must be 4441 * offloaded since we just set a beacon template, and 4442 * then we must also offload the IGTK (not just BIGTK) 4443 * for firmware reasons. 4444 * 4445 * So just check for beacon protection - if we don't 4446 * have it we cannot get here with keyidx >= 6, and 4447 * if we do have it we need to send the key to FW in 4448 * all cases (CMAC/GMAC). 4449 */ 4450 if (!wiphy_ext_feature_isset(hw->wiphy, 4451 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4452 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4453 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4454 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4455 ret = -EOPNOTSUPP; 4456 break; 4457 } 4458 4459 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4460 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4461 !iwl_mvm_has_new_tx_api(mvm)) { 4462 key->hw_key_idx = STA_KEY_IDX_INVALID; 4463 ret = 0; 4464 break; 4465 } 4466 4467 if (!mvmvif->ap_ibss_active) { 4468 for (i = 0; 4469 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4470 i++) { 4471 if (!mvmvif->ap_early_keys[i]) { 4472 mvmvif->ap_early_keys[i] = key; 4473 break; 4474 } 4475 } 4476 4477 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4478 ret = -ENOSPC; 4479 else 4480 ret = 0; 4481 4482 break; 4483 } 4484 } 4485 4486 /* During FW restart, in order to restore the state as it was, 4487 * don't try to reprogram keys we previously failed for. 4488 */ 4489 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4490 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4491 IWL_DEBUG_MAC80211(mvm, 4492 "skip invalid idx key programming during restart\n"); 4493 ret = 0; 4494 break; 4495 } 4496 4497 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4498 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4499 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4500 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4501 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4502 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4503 struct ieee80211_key_seq seq; 4504 int tid, q; 4505 4506 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4507 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4508 mvm->trans->info.num_rxqs), 4509 GFP_KERNEL); 4510 if (!ptk_pn) { 4511 ret = -ENOMEM; 4512 break; 4513 } 4514 4515 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4516 ieee80211_get_key_rx_seq(key, tid, &seq); 4517 for (q = 0; q < mvm->trans->info.num_rxqs; q++) 4518 memcpy(ptk_pn->q[q].pn[tid], 4519 seq.ccmp.pn, 4520 IEEE80211_CCMP_PN_LEN); 4521 } 4522 4523 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4524 } 4525 4526 /* in HW restart reuse the index, otherwise request a new one */ 4527 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4528 key_offset = key->hw_key_idx; 4529 else 4530 key_offset = STA_KEY_IDX_INVALID; 4531 4532 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4533 mvmsta->pairwise_cipher = key->cipher; 4534 4535 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4536 sta ? sta->addr : NULL, key->keyidx); 4537 4538 if (sec_key_ver) 4539 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4540 else 4541 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4542 4543 if (ret) { 4544 IWL_WARN(mvm, "set key failed\n"); 4545 key->hw_key_idx = STA_KEY_IDX_INVALID; 4546 if (ptk_pn) { 4547 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4548 kfree(ptk_pn); 4549 } 4550 /* 4551 * can't add key for RX, but we don't need it 4552 * in the device for TX so still return 0, 4553 * unless we have new TX API where we cannot 4554 * put key material into the TX_CMD 4555 */ 4556 if (iwl_mvm_has_new_tx_api(mvm)) 4557 ret = -EOPNOTSUPP; 4558 else 4559 ret = 0; 4560 } 4561 4562 break; 4563 case DISABLE_KEY: 4564 if (vif->type == NL80211_IFTYPE_STATION && 4565 (keyidx == 6 || keyidx == 7)) 4566 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4567 NULL); 4568 4569 ret = -ENOENT; 4570 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4571 if (mvmvif->ap_early_keys[i] == key) { 4572 mvmvif->ap_early_keys[i] = NULL; 4573 ret = 0; 4574 } 4575 } 4576 4577 /* found in pending list - don't do anything else */ 4578 if (ret == 0) 4579 break; 4580 4581 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4582 ret = 0; 4583 break; 4584 } 4585 4586 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4587 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4588 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4589 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4590 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4591 ptk_pn = rcu_dereference_protected( 4592 mvmsta->ptk_pn[keyidx], 4593 lockdep_is_held(&mvm->mutex)); 4594 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4595 if (ptk_pn) 4596 kfree_rcu(ptk_pn, rcu_head); 4597 } 4598 4599 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4600 if (sec_key_ver) 4601 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4602 else 4603 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4604 break; 4605 default: 4606 ret = -EINVAL; 4607 } 4608 4609 return ret; 4610 } 4611 4612 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4613 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4614 struct ieee80211_key_conf *key) 4615 { 4616 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4617 4618 guard(mvm)(mvm); 4619 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4620 } 4621 4622 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4623 struct ieee80211_vif *vif, 4624 struct ieee80211_key_conf *keyconf, 4625 struct ieee80211_sta *sta, 4626 u32 iv32, u16 *phase1key) 4627 { 4628 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4629 4630 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4631 return; 4632 4633 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4634 } 4635 4636 4637 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4638 struct iwl_rx_packet *pkt, void *data) 4639 { 4640 struct iwl_mvm *mvm = 4641 container_of(notif_wait, struct iwl_mvm, notif_wait); 4642 struct iwl_hs20_roc_res *resp; 4643 int resp_len = iwl_rx_packet_payload_len(pkt); 4644 struct iwl_mvm_time_event_data *te_data = data; 4645 4646 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4647 return true; 4648 4649 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4650 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4651 return true; 4652 } 4653 4654 resp = (void *)pkt->data; 4655 4656 IWL_DEBUG_TE(mvm, 4657 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4658 resp->status, resp->event_unique_id); 4659 4660 te_data->uid = le32_to_cpu(resp->event_unique_id); 4661 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4662 te_data->uid); 4663 4664 spin_lock_bh(&mvm->time_event_lock); 4665 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4666 spin_unlock_bh(&mvm->time_event_lock); 4667 4668 return true; 4669 } 4670 4671 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4672 struct ieee80211_channel *channel, 4673 struct ieee80211_vif *vif, 4674 int duration) 4675 { 4676 int res; 4677 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4678 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4679 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4680 struct iwl_notification_wait wait_time_event; 4681 u32 req_dur, delay; 4682 struct iwl_hs20_roc_req aux_roc_req = { 4683 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4684 .id_and_color = 4685 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4686 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4687 }; 4688 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4689 &aux_roc_req.channel_info); 4690 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4691 4692 /* Set the channel info data */ 4693 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4694 iwl_mvm_phy_band_from_nl80211(channel->band), 4695 IWL_PHY_CHANNEL_MODE20, 4696 0); 4697 4698 /* Set the time and duration */ 4699 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4700 4701 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4702 tail->duration = cpu_to_le32(req_dur); 4703 tail->apply_time_max_delay = cpu_to_le32(delay); 4704 4705 IWL_DEBUG_TE(mvm, 4706 "ROC: Requesting to remain on channel %u for %ums\n", 4707 channel->hw_value, req_dur); 4708 IWL_DEBUG_TE(mvm, 4709 "\t(requested = %ums, max_delay = %ums)\n", 4710 duration, delay); 4711 4712 /* Set the node address */ 4713 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4714 4715 lockdep_assert_held(&mvm->mutex); 4716 4717 spin_lock_bh(&mvm->time_event_lock); 4718 4719 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4720 spin_unlock_bh(&mvm->time_event_lock); 4721 return -EIO; 4722 } 4723 4724 te_data->vif = vif; 4725 te_data->duration = duration; 4726 te_data->id = HOT_SPOT_CMD; 4727 4728 spin_unlock_bh(&mvm->time_event_lock); 4729 4730 /* 4731 * Use a notification wait, which really just processes the 4732 * command response and doesn't wait for anything, in order 4733 * to be able to process the response and get the UID inside 4734 * the RX path. Using CMD_WANT_SKB doesn't work because it 4735 * stores the buffer and then wakes up this thread, by which 4736 * time another notification (that the time event started) 4737 * might already be processed unsuccessfully. 4738 */ 4739 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4740 time_event_response, 4741 ARRAY_SIZE(time_event_response), 4742 iwl_mvm_rx_aux_roc, te_data); 4743 4744 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4745 &aux_roc_req); 4746 4747 if (res) { 4748 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4749 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4750 goto out_clear_te; 4751 } 4752 4753 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4754 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4755 /* should never fail */ 4756 WARN_ON_ONCE(res); 4757 4758 if (res) { 4759 out_clear_te: 4760 spin_lock_bh(&mvm->time_event_lock); 4761 iwl_mvm_te_clear_data(mvm, te_data); 4762 spin_unlock_bh(&mvm->time_event_lock); 4763 } 4764 4765 return res; 4766 } 4767 4768 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4769 { 4770 int ret = 0; 4771 4772 lockdep_assert_held(&mvm->mutex); 4773 4774 if (!fw_has_capa(&mvm->fw->ucode_capa, 4775 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4776 IWL_ERR(mvm, "hotspot not supported\n"); 4777 return -EINVAL; 4778 } 4779 4780 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4781 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4782 WARN(ret, "Failed to allocate aux station"); 4783 } 4784 4785 return ret; 4786 } 4787 4788 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4789 { 4790 int ret; 4791 4792 lockdep_assert_held(&mvm->mutex); 4793 4794 ret = iwl_mvm_binding_add_vif(mvm, vif); 4795 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4796 return ret; 4797 4798 /* The station and queue allocation must be done only after the binding 4799 * is done, as otherwise the FW might incorrectly configure its state. 4800 */ 4801 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4802 } 4803 4804 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4805 struct ieee80211_vif *vif, 4806 struct ieee80211_channel *channel, 4807 int duration, 4808 enum ieee80211_roc_type type) 4809 { 4810 static const struct iwl_mvm_roc_ops ops = { 4811 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4812 .link = iwl_mvm_roc_link, 4813 }; 4814 4815 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4816 } 4817 4818 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4819 struct ieee80211_channel *channel, 4820 struct ieee80211_vif *vif, 4821 int duration) 4822 { 4823 int ret; 4824 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4825 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4826 IWL_FW_CMD_VER_UNKNOWN); 4827 4828 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4829 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4830 } else if (fw_ver >= 3) { 4831 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4832 ROC_ACTIVITY_HOTSPOT); 4833 } else { 4834 ret = -EOPNOTSUPP; 4835 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4836 } 4837 4838 return ret; 4839 } 4840 4841 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4842 struct ieee80211_channel *channel, 4843 struct ieee80211_vif *vif, 4844 int duration, 4845 enum ieee80211_roc_type type) 4846 { 4847 enum iwl_roc_activity activity; 4848 int ret; 4849 4850 lockdep_assert_held(&mvm->mutex); 4851 4852 switch (type) { 4853 case IEEE80211_ROC_TYPE_NORMAL: 4854 activity = ROC_ACTIVITY_P2P_DISC; 4855 break; 4856 case IEEE80211_ROC_TYPE_MGMT_TX: 4857 activity = ROC_ACTIVITY_P2P_NEG; 4858 break; 4859 default: 4860 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4861 return -EINVAL; 4862 } 4863 4864 ret = iwl_mvm_mld_add_aux_sta(mvm, 4865 iwl_mvm_get_lmac_id(mvm, channel->band)); 4866 if (ret) 4867 return ret; 4868 4869 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4870 } 4871 4872 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4873 struct ieee80211_vif *vif, 4874 struct ieee80211_channel *channel) 4875 { 4876 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4877 struct cfg80211_chan_def chandef; 4878 int i; 4879 4880 lockdep_assert_held(&mvm->mutex); 4881 4882 if (mvmvif->deflink.phy_ctxt && 4883 channel == mvmvif->deflink.phy_ctxt->channel) 4884 return 0; 4885 4886 /* Try using a PHY context that is already in use */ 4887 for (i = 0; i < NUM_PHY_CTX; i++) { 4888 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4889 4890 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4891 continue; 4892 4893 if (channel == phy_ctxt->channel) { 4894 if (mvmvif->deflink.phy_ctxt) 4895 iwl_mvm_phy_ctxt_unref(mvm, 4896 mvmvif->deflink.phy_ctxt); 4897 4898 mvmvif->deflink.phy_ctxt = phy_ctxt; 4899 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4900 return 0; 4901 } 4902 } 4903 4904 /* We already have a phy_ctxt, but it's not on the right channel */ 4905 if (mvmvif->deflink.phy_ctxt) 4906 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4907 4908 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4909 if (!mvmvif->deflink.phy_ctxt) 4910 return -ENOSPC; 4911 4912 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4913 4914 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4915 &chandef, NULL, 1, 1); 4916 } 4917 4918 /* Execute the common part for MLD and non-MLD modes */ 4919 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4920 struct ieee80211_channel *channel, int duration, 4921 enum ieee80211_roc_type type, 4922 const struct iwl_mvm_roc_ops *ops) 4923 { 4924 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4925 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); 4926 u32 lmac_id; 4927 int ret; 4928 4929 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4930 duration, type); 4931 4932 /* 4933 * Flush the done work, just in case it's still pending, so that 4934 * the work it does can complete and we can accept new frames. 4935 */ 4936 flush_work(&mvm->roc_done_wk); 4937 4938 if (!IS_ERR_OR_NULL(bss_vif)) { 4939 ret = iwl_mvm_block_esr_sync(mvm, bss_vif, 4940 IWL_MVM_ESR_BLOCKED_ROC); 4941 if (ret) 4942 return ret; 4943 } 4944 4945 guard(mvm)(mvm); 4946 4947 switch (vif->type) { 4948 case NL80211_IFTYPE_STATION: 4949 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4950 4951 /* Use aux roc framework (HS20) */ 4952 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4953 if (!ret) 4954 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4955 return ret; 4956 case NL80211_IFTYPE_P2P_DEVICE: 4957 /* handle below */ 4958 break; 4959 default: 4960 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4961 return -EINVAL; 4962 } 4963 4964 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4965 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4966 return ret; 4967 } 4968 4969 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4970 if (ret) 4971 return ret; 4972 4973 ret = ops->link(mvm, vif); 4974 if (ret) 4975 return ret; 4976 4977 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4978 } 4979 4980 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4981 struct ieee80211_vif *vif) 4982 { 4983 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4984 4985 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4986 4987 iwl_mvm_stop_roc(mvm, vif); 4988 4989 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4990 return 0; 4991 } 4992 4993 struct iwl_mvm_chanctx_usage_data { 4994 struct iwl_mvm *mvm; 4995 struct ieee80211_chanctx_conf *ctx; 4996 bool use_def; 4997 }; 4998 4999 static void iwl_mvm_chanctx_usage_iter(void *_data, u8 *mac, 5000 struct ieee80211_vif *vif) 5001 { 5002 struct iwl_mvm_chanctx_usage_data *data = _data; 5003 struct ieee80211_bss_conf *link_conf; 5004 int link_id; 5005 5006 for_each_vif_active_link(vif, link_conf, link_id) { 5007 if (rcu_access_pointer(link_conf->chanctx_conf) != data->ctx) 5008 continue; 5009 5010 if (iwl_mvm_enable_fils(data->mvm, vif, data->ctx)) 5011 data->use_def = true; 5012 5013 if (vif->type == NL80211_IFTYPE_AP && link_conf->ftmr_params) 5014 data->use_def = true; 5015 } 5016 } 5017 5018 struct cfg80211_chan_def * 5019 iwl_mvm_chanctx_def(struct iwl_mvm *mvm, struct ieee80211_chanctx_conf *ctx) 5020 { 5021 struct iwl_mvm_chanctx_usage_data data = { 5022 .mvm = mvm, 5023 .ctx = ctx, 5024 .use_def = false, 5025 }; 5026 5027 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 5028 IEEE80211_IFACE_ITER_NORMAL, 5029 iwl_mvm_chanctx_usage_iter, 5030 &data); 5031 5032 return data.use_def ? &ctx->def : &ctx->min_def; 5033 } 5034 5035 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 5036 struct ieee80211_chanctx_conf *ctx) 5037 { 5038 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5039 struct iwl_mvm_phy_ctxt *phy_ctxt; 5040 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5041 int ret; 5042 5043 lockdep_assert_held(&mvm->mutex); 5044 5045 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 5046 5047 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 5048 if (!phy_ctxt) { 5049 ret = -ENOSPC; 5050 goto out; 5051 } 5052 5053 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 5054 ctx->rx_chains_static, 5055 ctx->rx_chains_dynamic); 5056 if (ret) { 5057 IWL_ERR(mvm, "Failed to add PHY context\n"); 5058 goto out; 5059 } 5060 5061 *phy_ctxt_id = phy_ctxt->id; 5062 out: 5063 return ret; 5064 } 5065 5066 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 5067 struct ieee80211_chanctx_conf *ctx) 5068 { 5069 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5070 5071 guard(mvm)(mvm); 5072 return __iwl_mvm_add_chanctx(mvm, ctx); 5073 } 5074 5075 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 5076 struct ieee80211_chanctx_conf *ctx) 5077 { 5078 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5079 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5080 5081 lockdep_assert_held(&mvm->mutex); 5082 5083 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 5084 } 5085 5086 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 5087 struct ieee80211_chanctx_conf *ctx) 5088 { 5089 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5090 5091 guard(mvm)(mvm); 5092 __iwl_mvm_remove_chanctx(mvm, ctx); 5093 } 5094 5095 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 5096 struct ieee80211_chanctx_conf *ctx, u32 changed) 5097 { 5098 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5099 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5100 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5101 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5102 5103 if (WARN_ONCE((phy_ctxt->ref > 1) && 5104 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 5105 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 5106 IEEE80211_CHANCTX_CHANGE_RADAR | 5107 IEEE80211_CHANCTX_CHANGE_MIN_DEF)), 5108 "Cannot change PHY. Ref=%d, changed=0x%X\n", 5109 phy_ctxt->ref, changed)) 5110 return; 5111 5112 guard(mvm)(mvm); 5113 5114 /* we are only changing the min_width, may be a noop */ 5115 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) { 5116 if (phy_ctxt->width == def->width) 5117 return; 5118 5119 /* we are just toggling between 20_NOHT and 20 */ 5120 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5121 def->width <= NL80211_CHAN_WIDTH_20) 5122 return; 5123 } 5124 5125 iwl_mvm_bt_coex_vif_change(mvm); 5126 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5127 ctx->rx_chains_static, 5128 ctx->rx_chains_dynamic); 5129 } 5130 5131 /* 5132 * This function executes the common part for MLD and non-MLD modes. 5133 * 5134 * Returns true if we're done assigning the chanctx 5135 * (either on failure or success) 5136 */ 5137 static bool 5138 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5139 struct ieee80211_vif *vif, 5140 struct ieee80211_chanctx_conf *ctx, 5141 bool switching_chanctx, int *ret) 5142 { 5143 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5144 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5145 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5146 5147 lockdep_assert_held(&mvm->mutex); 5148 5149 mvmvif->deflink.phy_ctxt = phy_ctxt; 5150 5151 switch (vif->type) { 5152 case NL80211_IFTYPE_AP: 5153 /* only needed if we're switching chanctx (i.e. during CSA) */ 5154 if (switching_chanctx) { 5155 mvmvif->ap_ibss_active = true; 5156 break; 5157 } 5158 fallthrough; 5159 case NL80211_IFTYPE_ADHOC: 5160 /* 5161 * The AP binding flow is handled as part of the start_ap flow 5162 * (in bss_info_changed), similarly for IBSS. 5163 */ 5164 *ret = 0; 5165 return true; 5166 case NL80211_IFTYPE_STATION: 5167 break; 5168 case NL80211_IFTYPE_MONITOR: 5169 /* always disable PS when a monitor interface is active */ 5170 mvmvif->ps_disabled = true; 5171 break; 5172 default: 5173 *ret = -EINVAL; 5174 return true; 5175 } 5176 return false; 5177 } 5178 5179 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5180 struct ieee80211_vif *vif, 5181 struct ieee80211_bss_conf *link_conf, 5182 struct ieee80211_chanctx_conf *ctx, 5183 bool switching_chanctx) 5184 { 5185 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5186 int ret; 5187 5188 if (WARN_ON(!link_conf)) 5189 return -EINVAL; 5190 5191 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5192 switching_chanctx, &ret)) 5193 goto out; 5194 5195 ret = iwl_mvm_binding_add_vif(mvm, vif); 5196 if (ret) 5197 goto out; 5198 5199 /* 5200 * Power state must be updated before quotas, 5201 * otherwise fw will complain. 5202 */ 5203 iwl_mvm_power_update_mac(mvm); 5204 5205 /* Setting the quota at this stage is only required for monitor 5206 * interfaces. For the other types, the bss_info changed flow 5207 * will handle quota settings. 5208 */ 5209 if (vif->type == NL80211_IFTYPE_MONITOR) { 5210 mvmvif->monitor_active = true; 5211 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5212 if (ret) 5213 goto out_remove_binding; 5214 5215 ret = iwl_mvm_add_snif_sta(mvm, vif); 5216 if (ret) 5217 goto out_remove_binding; 5218 5219 } 5220 5221 /* Handle binding during CSA */ 5222 if (vif->type == NL80211_IFTYPE_AP) { 5223 iwl_mvm_update_quotas(mvm, false, NULL); 5224 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5225 } 5226 5227 if (vif->type == NL80211_IFTYPE_STATION) { 5228 if (!switching_chanctx) { 5229 mvmvif->csa_bcn_pending = false; 5230 goto out; 5231 } 5232 5233 mvmvif->csa_bcn_pending = true; 5234 5235 if (!fw_has_capa(&mvm->fw->ucode_capa, 5236 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5237 u32 duration = 5 * vif->bss_conf.beacon_int; 5238 5239 /* Protect the session to make sure we hear the first 5240 * beacon on the new channel. 5241 */ 5242 iwl_mvm_protect_session(mvm, vif, duration, duration, 5243 vif->bss_conf.beacon_int / 2, 5244 true); 5245 } 5246 5247 iwl_mvm_update_quotas(mvm, false, NULL); 5248 5249 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5250 link_conf, 5251 false); 5252 } 5253 5254 goto out; 5255 5256 out_remove_binding: 5257 iwl_mvm_binding_remove_vif(mvm, vif); 5258 iwl_mvm_power_update_mac(mvm); 5259 out: 5260 if (ret) 5261 mvmvif->deflink.phy_ctxt = NULL; 5262 return ret; 5263 } 5264 5265 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5266 struct ieee80211_vif *vif, 5267 struct ieee80211_bss_conf *link_conf, 5268 struct ieee80211_chanctx_conf *ctx) 5269 { 5270 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5271 5272 guard(mvm)(mvm); 5273 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5274 } 5275 5276 /* 5277 * This function executes the common part for MLD and non-MLD modes. 5278 * 5279 * Returns if chanctx unassign chanctx is done 5280 * (either on failure or success) 5281 */ 5282 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5283 struct ieee80211_vif *vif, 5284 bool switching_chanctx) 5285 { 5286 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5287 5288 lockdep_assert_held(&mvm->mutex); 5289 iwl_mvm_remove_time_event(mvm, mvmvif, 5290 &mvmvif->time_event_data); 5291 5292 switch (vif->type) { 5293 case NL80211_IFTYPE_ADHOC: 5294 return true; 5295 case NL80211_IFTYPE_MONITOR: 5296 mvmvif->monitor_active = false; 5297 mvmvif->ps_disabled = false; 5298 break; 5299 case NL80211_IFTYPE_AP: 5300 /* This part is triggered only during CSA */ 5301 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5302 return true; 5303 5304 mvmvif->csa_countdown = false; 5305 5306 /* Set CS bit on all the stations */ 5307 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5308 5309 /* Save blocked iface, the timeout is set on the next beacon */ 5310 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5311 5312 mvmvif->ap_ibss_active = false; 5313 break; 5314 default: 5315 break; 5316 } 5317 return false; 5318 } 5319 5320 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5321 struct ieee80211_vif *vif, 5322 struct ieee80211_bss_conf *link_conf, 5323 struct ieee80211_chanctx_conf *ctx, 5324 bool switching_chanctx) 5325 { 5326 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5327 struct ieee80211_vif *disabled_vif = NULL; 5328 5329 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5330 goto out; 5331 5332 if (vif->type == NL80211_IFTYPE_MONITOR) 5333 iwl_mvm_rm_snif_sta(mvm, vif); 5334 5335 5336 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5337 disabled_vif = vif; 5338 if (!fw_has_capa(&mvm->fw->ucode_capa, 5339 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5340 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5341 } 5342 5343 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5344 iwl_mvm_binding_remove_vif(mvm, vif); 5345 5346 out: 5347 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5348 switching_chanctx) 5349 return; 5350 mvmvif->deflink.phy_ctxt = NULL; 5351 iwl_mvm_power_update_mac(mvm); 5352 } 5353 5354 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5355 struct ieee80211_vif *vif, 5356 struct ieee80211_bss_conf *link_conf, 5357 struct ieee80211_chanctx_conf *ctx) 5358 { 5359 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5360 5361 guard(mvm)(mvm); 5362 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5363 } 5364 5365 static int 5366 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5367 struct ieee80211_vif_chanctx_switch *vifs, 5368 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5369 { 5370 int ret; 5371 5372 guard(mvm)(mvm); 5373 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5374 vifs[0].old_ctx, true); 5375 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5376 5377 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5378 if (ret) { 5379 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5380 goto out_reassign; 5381 } 5382 5383 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5384 vifs[0].new_ctx, true); 5385 if (ret) { 5386 IWL_ERR(mvm, 5387 "failed to assign new_ctx during channel switch\n"); 5388 goto out_remove; 5389 } 5390 5391 /* we don't support TDLS during DCM - can be caused by channel switch */ 5392 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5393 iwl_mvm_teardown_tdls_peers(mvm); 5394 5395 return 0; 5396 5397 out_remove: 5398 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5399 5400 out_reassign: 5401 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5402 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5403 goto out_restart; 5404 } 5405 5406 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5407 vifs[0].old_ctx, true)) { 5408 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5409 goto out_restart; 5410 } 5411 5412 return ret; 5413 5414 out_restart: 5415 /* things keep failing, better restart the hw */ 5416 iwl_force_nmi(mvm->trans); 5417 return ret; 5418 } 5419 5420 static int 5421 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5422 struct ieee80211_vif_chanctx_switch *vifs, 5423 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5424 { 5425 int ret; 5426 5427 guard(mvm)(mvm); 5428 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5429 vifs[0].old_ctx, true); 5430 5431 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5432 vifs[0].new_ctx, true); 5433 if (ret) { 5434 IWL_ERR(mvm, 5435 "failed to assign new_ctx during channel switch\n"); 5436 goto out_reassign; 5437 } 5438 5439 return 0; 5440 5441 out_reassign: 5442 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5443 vifs[0].old_ctx, true)) { 5444 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5445 goto out_restart; 5446 } 5447 5448 return ret; 5449 5450 out_restart: 5451 /* things keep failing, better restart the hw */ 5452 iwl_force_nmi(mvm->trans); 5453 return ret; 5454 } 5455 5456 /* Execute the common part for both MLD and non-MLD modes */ 5457 int 5458 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5459 struct ieee80211_vif_chanctx_switch *vifs, 5460 int n_vifs, 5461 enum ieee80211_chanctx_switch_mode mode, 5462 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5463 { 5464 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5465 int ret; 5466 5467 /* we only support a single-vif right now */ 5468 if (n_vifs > 1) 5469 return -EOPNOTSUPP; 5470 5471 switch (mode) { 5472 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5473 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5474 break; 5475 case CHANCTX_SWMODE_REASSIGN_VIF: 5476 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5477 break; 5478 default: 5479 ret = -EOPNOTSUPP; 5480 break; 5481 } 5482 5483 return ret; 5484 } 5485 5486 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5487 struct ieee80211_vif_chanctx_switch *vifs, 5488 int n_vifs, 5489 enum ieee80211_chanctx_switch_mode mode) 5490 { 5491 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5492 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5493 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5494 }; 5495 5496 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5497 } 5498 5499 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5500 { 5501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5502 5503 return mvm->ibss_manager; 5504 } 5505 5506 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5507 bool set) 5508 { 5509 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5510 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5511 5512 if (!mvm_sta || !mvm_sta->vif) { 5513 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5514 return -EINVAL; 5515 } 5516 5517 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5518 &mvm_sta->vif->bss_conf); 5519 } 5520 5521 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5522 struct ieee80211_channel_switch *chsw) 5523 { 5524 /* By implementing this operation, we prevent mac80211 from 5525 * starting its own channel switch timer, so that we can call 5526 * ieee80211_chswitch_done() ourselves at the right time 5527 * (which is when the absence time event starts). 5528 */ 5529 5530 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5531 "dummy channel switch op\n"); 5532 } 5533 5534 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5535 struct ieee80211_vif *vif, 5536 struct ieee80211_channel_switch *chsw) 5537 { 5538 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5539 struct iwl_chan_switch_te_cmd cmd = { 5540 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5541 mvmvif->color)), 5542 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5543 .tsf = cpu_to_le32(chsw->timestamp), 5544 .cs_count = chsw->count, 5545 .cs_mode = chsw->block_tx, 5546 }; 5547 5548 lockdep_assert_held(&mvm->mutex); 5549 5550 if (chsw->delay) 5551 cmd.cs_delayed_bcn_count = 5552 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5553 5554 return iwl_mvm_send_cmd_pdu(mvm, 5555 WIDE_ID(MAC_CONF_GROUP, 5556 CHANNEL_SWITCH_TIME_EVENT_CMD), 5557 0, sizeof(cmd), &cmd); 5558 } 5559 5560 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5561 struct ieee80211_vif *vif, 5562 struct ieee80211_channel_switch *chsw) 5563 { 5564 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5565 u32 apply_time; 5566 5567 /* Schedule the time event to a bit before beacon 1, 5568 * to make sure we're in the new channel when the 5569 * GO/AP arrives. In case count <= 1 immediately schedule the 5570 * TE (this might result with some packet loss or connection 5571 * loss). 5572 */ 5573 if (chsw->count <= 1) 5574 apply_time = 0; 5575 else 5576 apply_time = chsw->device_timestamp + 5577 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5578 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5579 5580 if (chsw->block_tx) 5581 iwl_mvm_csa_client_absent(mvm, vif); 5582 5583 if (mvmvif->bf_enabled) { 5584 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5585 5586 if (ret) 5587 return ret; 5588 } 5589 5590 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5591 apply_time); 5592 5593 return 0; 5594 } 5595 5596 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5597 { 5598 int i; 5599 5600 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5601 struct iwl_mvm_txq *mvmtxq = 5602 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5603 5604 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5605 } 5606 } 5607 5608 #define IWL_MAX_CSA_BLOCK_TX 1500 5609 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5610 struct ieee80211_vif *vif, 5611 struct ieee80211_channel_switch *chsw) 5612 { 5613 struct ieee80211_vif *csa_vif; 5614 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5615 struct iwl_mvm_txq *mvmtxq; 5616 int ret; 5617 5618 lockdep_assert_held(&mvm->mutex); 5619 5620 mvmvif->csa_failed = false; 5621 mvmvif->csa_blocks_tx = false; 5622 5623 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5624 chsw->chandef.center_freq1); 5625 5626 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5627 ieee80211_vif_to_wdev(vif), 5628 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5629 5630 switch (vif->type) { 5631 case NL80211_IFTYPE_AP: 5632 csa_vif = 5633 rcu_dereference_protected(mvm->csa_vif, 5634 lockdep_is_held(&mvm->mutex)); 5635 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5636 "Another CSA is already in progress")) 5637 return -EBUSY; 5638 5639 /* we still didn't unblock tx. prevent new CS meanwhile */ 5640 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5641 lockdep_is_held(&mvm->mutex))) 5642 return -EBUSY; 5643 5644 rcu_assign_pointer(mvm->csa_vif, vif); 5645 5646 if (WARN_ONCE(mvmvif->csa_countdown, 5647 "Previous CSA countdown didn't complete")) 5648 return -EBUSY; 5649 5650 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5651 5652 if (!chsw->block_tx) 5653 break; 5654 /* don't need blocking in driver otherwise - mac80211 will do */ 5655 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5656 break; 5657 5658 mvmvif->csa_blocks_tx = true; 5659 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5660 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5661 ieee80211_iterate_stations_atomic(mvm->hw, 5662 iwl_mvm_csa_block_txqs, 5663 NULL); 5664 break; 5665 case NL80211_IFTYPE_STATION: 5666 mvmvif->csa_blocks_tx = chsw->block_tx; 5667 5668 /* 5669 * In the new flow FW is in charge of timing the switch so there 5670 * is no need for all of this 5671 */ 5672 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5673 CHANNEL_SWITCH_ERROR_NOTIF, 5674 0)) 5675 break; 5676 5677 /* 5678 * We haven't configured the firmware to be associated yet since 5679 * we don't know the dtim period. In this case, the firmware can't 5680 * track the beacons. 5681 */ 5682 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5683 return -EBUSY; 5684 5685 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5686 hweight16(vif->valid_links) <= 1) 5687 schedule_delayed_work(&mvmvif->csa_work, 0); 5688 5689 if (chsw->block_tx) { 5690 /* 5691 * In case of undetermined / long time with immediate 5692 * quiet monitor status to gracefully disconnect 5693 */ 5694 if (!chsw->count || 5695 chsw->count * vif->bss_conf.beacon_int > 5696 IWL_MAX_CSA_BLOCK_TX) 5697 schedule_delayed_work(&mvmvif->csa_work, 5698 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5699 } 5700 5701 if (!fw_has_capa(&mvm->fw->ucode_capa, 5702 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5703 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5704 if (ret) 5705 return ret; 5706 } else { 5707 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5708 } 5709 5710 mvmvif->csa_count = chsw->count; 5711 mvmvif->csa_misbehave = false; 5712 break; 5713 default: 5714 break; 5715 } 5716 5717 mvmvif->ps_disabled = true; 5718 5719 ret = iwl_mvm_power_update_ps(mvm); 5720 if (ret) 5721 return ret; 5722 5723 /* we won't be on this channel any longer */ 5724 iwl_mvm_teardown_tdls_peers(mvm); 5725 5726 return ret; 5727 } 5728 5729 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5730 struct ieee80211_vif *vif, 5731 struct ieee80211_channel_switch *chsw) 5732 { 5733 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5734 5735 guard(mvm)(mvm); 5736 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5737 } 5738 5739 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5740 struct ieee80211_vif *vif, 5741 struct ieee80211_channel_switch *chsw) 5742 { 5743 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5744 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5745 struct iwl_chan_switch_te_cmd cmd = { 5746 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5747 mvmvif->color)), 5748 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5749 .tsf = cpu_to_le32(chsw->timestamp), 5750 .cs_count = chsw->count, 5751 .cs_mode = chsw->block_tx, 5752 }; 5753 5754 /* 5755 * In the new flow FW is in charge of timing the switch so there is no 5756 * need for all of this 5757 */ 5758 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5759 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5760 return; 5761 5762 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5763 return; 5764 5765 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5766 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5767 5768 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5769 if (mvmvif->csa_misbehave) { 5770 struct ieee80211_bss_conf *link_conf; 5771 5772 /* Second time, give up on this AP*/ 5773 5774 link_conf = wiphy_dereference(hw->wiphy, 5775 vif->link_conf[chsw->link_id]); 5776 if (WARN_ON(!link_conf)) 5777 return; 5778 5779 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5780 ieee80211_chswitch_done(vif, false, 0); 5781 mvmvif->csa_misbehave = false; 5782 return; 5783 } 5784 mvmvif->csa_misbehave = true; 5785 } 5786 mvmvif->csa_count = chsw->count; 5787 5788 guard(mvm)(mvm); 5789 if (mvmvif->csa_failed) 5790 return; 5791 5792 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5793 WIDE_ID(MAC_CONF_GROUP, 5794 CHANNEL_SWITCH_TIME_EVENT_CMD), 5795 0, sizeof(cmd), &cmd)); 5796 } 5797 5798 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5799 { 5800 int i; 5801 5802 if (!iwl_mvm_has_new_tx_api(mvm)) { 5803 /* we can't ask the firmware anything if it is dead */ 5804 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5805 &mvm->status)) 5806 return; 5807 if (drop) { 5808 guard(mvm)(mvm); 5809 iwl_mvm_flush_tx_path(mvm, 5810 iwl_mvm_flushable_queues(mvm) & queues); 5811 } else { 5812 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5813 } 5814 return; 5815 } 5816 5817 guard(mvm)(mvm); 5818 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5819 struct ieee80211_sta *sta; 5820 5821 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5822 lockdep_is_held(&mvm->mutex)); 5823 if (IS_ERR_OR_NULL(sta)) 5824 continue; 5825 5826 if (drop) 5827 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5828 else 5829 iwl_mvm_wait_sta_queues_empty(mvm, 5830 iwl_mvm_sta_from_mac80211(sta)); 5831 } 5832 } 5833 5834 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5835 u32 queues, bool drop) 5836 { 5837 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5838 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5839 struct iwl_mvm_sta *mvmsta; 5840 struct ieee80211_sta *sta; 5841 bool ap_sta_done = false; 5842 int i; 5843 u32 msk = 0; 5844 5845 if (!vif) { 5846 iwl_mvm_flush_no_vif(mvm, queues, drop); 5847 return; 5848 } 5849 5850 if (!drop && hweight16(vif->active_links) <= 1) { 5851 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5852 struct ieee80211_bss_conf *link_conf; 5853 5854 link_conf = wiphy_dereference(hw->wiphy, 5855 vif->link_conf[link_id]); 5856 if (WARN_ON(!link_conf)) 5857 return; 5858 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5859 drop = true; 5860 } 5861 5862 /* Make sure we're done with the deferred traffic before flushing */ 5863 flush_work(&mvm->add_stream_wk); 5864 5865 mutex_lock(&mvm->mutex); 5866 5867 /* flush the AP-station and all TDLS peers */ 5868 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5869 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5870 lockdep_is_held(&mvm->mutex)); 5871 if (IS_ERR_OR_NULL(sta)) 5872 continue; 5873 5874 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5875 if (mvmsta->vif != vif) 5876 continue; 5877 5878 if (sta == mvmvif->ap_sta) { 5879 if (ap_sta_done) 5880 continue; 5881 ap_sta_done = true; 5882 } 5883 5884 if (drop) { 5885 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5886 mvmsta->tfd_queue_msk)) 5887 IWL_ERR(mvm, "flush request fail\n"); 5888 } else { 5889 if (iwl_mvm_has_new_tx_api(mvm)) 5890 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5891 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5892 msk |= mvmsta->tfd_queue_msk; 5893 } 5894 } 5895 5896 mutex_unlock(&mvm->mutex); 5897 5898 /* this can take a while, and we may need/want other operations 5899 * to succeed while doing this, so do it without the mutex held 5900 * If the firmware is dead, this can't work... 5901 */ 5902 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5903 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5904 &mvm->status)) 5905 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5906 } 5907 5908 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5909 struct ieee80211_sta *sta) 5910 { 5911 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5912 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5913 struct iwl_mvm_link_sta *mvm_link_sta; 5914 struct ieee80211_link_sta *link_sta; 5915 int link_id; 5916 5917 guard(mvm)(mvm); 5918 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5919 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5920 lockdep_is_held(&mvm->mutex)); 5921 if (!mvm_link_sta) 5922 continue; 5923 5924 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5925 mvmsta->tfd_queue_msk)) 5926 IWL_ERR(mvm, "flush request fail\n"); 5927 } 5928 } 5929 5930 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 5931 struct survey_info *survey) 5932 { 5933 int chan_idx; 5934 enum nl80211_band band; 5935 int ret; 5936 5937 mutex_lock(&mvm->mutex); 5938 5939 if (!mvm->acs_survey) { 5940 ret = -ENOENT; 5941 goto out; 5942 } 5943 5944 /* Find and return the next entry that has a non-zero active time */ 5945 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5946 struct ieee80211_supported_band *sband = 5947 mvm->hw->wiphy->bands[band]; 5948 5949 if (!sband) 5950 continue; 5951 5952 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 5953 struct iwl_mvm_acs_survey_channel *info = 5954 &mvm->acs_survey->bands[band][chan_idx]; 5955 5956 if (!info->time) 5957 continue; 5958 5959 /* Found (the next) channel to report */ 5960 survey->channel = &sband->channels[chan_idx]; 5961 survey->filled = SURVEY_INFO_TIME | 5962 SURVEY_INFO_TIME_BUSY | 5963 SURVEY_INFO_TIME_RX | 5964 SURVEY_INFO_TIME_TX; 5965 survey->time = info->time; 5966 survey->time_busy = info->time_busy; 5967 survey->time_rx = info->time_rx; 5968 survey->time_tx = info->time_tx; 5969 survey->noise = info->noise; 5970 if (survey->noise < 0) 5971 survey->filled |= SURVEY_INFO_NOISE_DBM; 5972 5973 /* Clear time so that channel is only reported once */ 5974 info->time = 0; 5975 5976 ret = 0; 5977 goto out; 5978 } 5979 } 5980 5981 ret = -ENOENT; 5982 5983 out: 5984 mutex_unlock(&mvm->mutex); 5985 5986 return ret; 5987 } 5988 5989 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5990 struct survey_info *survey) 5991 { 5992 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5993 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5994 WIDE_ID(SYSTEM_GROUP, 5995 SYSTEM_STATISTICS_CMD), 5996 IWL_FW_CMD_VER_UNKNOWN); 5997 5998 memset(survey, 0, sizeof(*survey)); 5999 6000 if (!fw_has_capa(&mvm->fw->ucode_capa, 6001 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 6002 return -ENOENT; 6003 6004 /* 6005 * Return the beacon stats at index zero and pass on following indices 6006 * to the function returning the full survey, most likely for ACS 6007 * (Automatic Channel Selection). 6008 */ 6009 if (idx > 0) 6010 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 6011 6012 guard(mvm)(mvm); 6013 6014 if (iwl_mvm_firmware_running(mvm)) { 6015 int ret = iwl_mvm_request_statistics(mvm, false); 6016 6017 if (ret) 6018 return ret; 6019 } 6020 6021 survey->filled = SURVEY_INFO_TIME_RX | 6022 SURVEY_INFO_TIME_TX; 6023 6024 survey->time_rx = mvm->accu_radio_stats.rx_time + 6025 mvm->radio_stats.rx_time; 6026 do_div(survey->time_rx, USEC_PER_MSEC); 6027 6028 survey->time_tx = mvm->accu_radio_stats.tx_time + 6029 mvm->radio_stats.tx_time; 6030 do_div(survey->time_tx, USEC_PER_MSEC); 6031 6032 /* the new fw api doesn't support the following fields */ 6033 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 6034 return 0; 6035 6036 survey->filled |= SURVEY_INFO_TIME | 6037 SURVEY_INFO_TIME_SCAN; 6038 survey->time = mvm->accu_radio_stats.on_time_rf + 6039 mvm->radio_stats.on_time_rf; 6040 do_div(survey->time, USEC_PER_MSEC); 6041 6042 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 6043 mvm->radio_stats.on_time_scan; 6044 do_div(survey->time_scan, USEC_PER_MSEC); 6045 6046 return 0; 6047 } 6048 6049 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 6050 { 6051 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 6052 u32 gi_ltf; 6053 6054 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 6055 case RATE_MCS_CHAN_WIDTH_20: 6056 rinfo->bw = RATE_INFO_BW_20; 6057 break; 6058 case RATE_MCS_CHAN_WIDTH_40: 6059 rinfo->bw = RATE_INFO_BW_40; 6060 break; 6061 case RATE_MCS_CHAN_WIDTH_80: 6062 rinfo->bw = RATE_INFO_BW_80; 6063 break; 6064 case RATE_MCS_CHAN_WIDTH_160: 6065 rinfo->bw = RATE_INFO_BW_160; 6066 break; 6067 case RATE_MCS_CHAN_WIDTH_320: 6068 rinfo->bw = RATE_INFO_BW_320; 6069 break; 6070 } 6071 6072 if (format == RATE_MCS_MOD_TYPE_CCK || 6073 format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) { 6074 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 6075 6076 /* add the offset needed to get to the legacy ofdm indices */ 6077 if (format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) 6078 rate += IWL_FIRST_OFDM_RATE; 6079 6080 switch (rate) { 6081 case IWL_RATE_1M_INDEX: 6082 rinfo->legacy = 10; 6083 break; 6084 case IWL_RATE_2M_INDEX: 6085 rinfo->legacy = 20; 6086 break; 6087 case IWL_RATE_5M_INDEX: 6088 rinfo->legacy = 55; 6089 break; 6090 case IWL_RATE_11M_INDEX: 6091 rinfo->legacy = 110; 6092 break; 6093 case IWL_RATE_6M_INDEX: 6094 rinfo->legacy = 60; 6095 break; 6096 case IWL_RATE_9M_INDEX: 6097 rinfo->legacy = 90; 6098 break; 6099 case IWL_RATE_12M_INDEX: 6100 rinfo->legacy = 120; 6101 break; 6102 case IWL_RATE_18M_INDEX: 6103 rinfo->legacy = 180; 6104 break; 6105 case IWL_RATE_24M_INDEX: 6106 rinfo->legacy = 240; 6107 break; 6108 case IWL_RATE_36M_INDEX: 6109 rinfo->legacy = 360; 6110 break; 6111 case IWL_RATE_48M_INDEX: 6112 rinfo->legacy = 480; 6113 break; 6114 case IWL_RATE_54M_INDEX: 6115 rinfo->legacy = 540; 6116 } 6117 return; 6118 } 6119 6120 rinfo->nss = u32_get_bits(rate_n_flags, 6121 RATE_MCS_NSS_MSK) + 1; 6122 rinfo->mcs = format == RATE_MCS_MOD_TYPE_HT ? 6123 RATE_HT_MCS_INDEX(rate_n_flags) : 6124 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6125 6126 if (rate_n_flags & RATE_MCS_SGI_MSK) 6127 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6128 6129 switch (format) { 6130 case RATE_MCS_MOD_TYPE_EHT: 6131 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6132 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6133 break; 6134 case RATE_MCS_MOD_TYPE_HE: 6135 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6136 6137 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6138 6139 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6140 rinfo->bw = RATE_INFO_BW_HE_RU; 6141 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6142 } 6143 6144 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6145 case RATE_MCS_HE_TYPE_SU: 6146 case RATE_MCS_HE_TYPE_EXT_SU: 6147 if (gi_ltf == 0 || gi_ltf == 1) 6148 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6149 else if (gi_ltf == 2) 6150 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6151 else if (gi_ltf == 3) 6152 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6153 else 6154 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6155 break; 6156 case RATE_MCS_HE_TYPE_MU: 6157 if (gi_ltf == 0 || gi_ltf == 1) 6158 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6159 else if (gi_ltf == 2) 6160 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6161 else 6162 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6163 break; 6164 case RATE_MCS_HE_TYPE_TRIG: 6165 if (gi_ltf == 0 || gi_ltf == 1) 6166 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6167 else 6168 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6169 break; 6170 } 6171 6172 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6173 rinfo->he_dcm = 1; 6174 break; 6175 case RATE_MCS_MOD_TYPE_HT: 6176 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6177 break; 6178 case RATE_MCS_MOD_TYPE_VHT: 6179 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6180 break; 6181 } 6182 } 6183 6184 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6185 struct ieee80211_vif *vif, 6186 struct ieee80211_sta *sta, 6187 struct station_info *sinfo) 6188 { 6189 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6190 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6191 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6192 int i; 6193 6194 if (mvmsta->deflink.avg_energy) { 6195 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6196 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6197 } 6198 6199 if (iwl_mvm_has_tlc_offload(mvm)) { 6200 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6201 6202 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6203 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6204 } 6205 6206 /* if beacon filtering isn't on mac80211 does it anyway */ 6207 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6208 return; 6209 6210 if (!vif->cfg.assoc) 6211 return; 6212 6213 guard(mvm)(mvm); 6214 6215 if (sta != mvmvif->ap_sta) 6216 return; 6217 6218 if (iwl_mvm_request_statistics(mvm, false)) 6219 return; 6220 6221 sinfo->rx_beacon = 0; 6222 for_each_mvm_vif_valid_link(mvmvif, i) 6223 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6224 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6225 6226 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6227 if (mvmvif->deflink.beacon_stats.avg_signal) { 6228 /* firmware only reports a value after RXing a few beacons */ 6229 sinfo->rx_beacon_signal_avg = 6230 mvmvif->deflink.beacon_stats.avg_signal; 6231 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6232 } 6233 } 6234 6235 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6236 struct ieee80211_vif *vif, 6237 const struct ieee80211_mlme_event *mlme) 6238 { 6239 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6240 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6241 iwl_dbg_tlv_time_point(&mvm->fwrt, 6242 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6243 NULL); 6244 return; 6245 } 6246 6247 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6248 iwl_dbg_tlv_time_point(&mvm->fwrt, 6249 IWL_FW_INI_TIME_POINT_DEASSOC, 6250 NULL); 6251 return; 6252 } 6253 } 6254 6255 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6256 struct ieee80211_vif *vif, 6257 const struct ieee80211_event *event) 6258 { 6259 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6260 do { \ 6261 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6262 break; \ 6263 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6264 } while (0) 6265 6266 struct iwl_fw_dbg_trigger_tlv *trig; 6267 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6268 6269 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6270 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6271 return; 6272 } 6273 6274 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6275 FW_DBG_TRIGGER_MLME); 6276 if (!trig) 6277 return; 6278 6279 trig_mlme = (void *)trig->data; 6280 6281 if (event->u.mlme.data == ASSOC_EVENT) { 6282 if (event->u.mlme.status == MLME_DENIED) 6283 CHECK_MLME_TRIGGER(stop_assoc_denied, 6284 "DENIED ASSOC: reason %d", 6285 event->u.mlme.reason); 6286 else if (event->u.mlme.status == MLME_TIMEOUT) 6287 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6288 "ASSOC TIMEOUT"); 6289 } else if (event->u.mlme.data == AUTH_EVENT) { 6290 if (event->u.mlme.status == MLME_DENIED) 6291 CHECK_MLME_TRIGGER(stop_auth_denied, 6292 "DENIED AUTH: reason %d", 6293 event->u.mlme.reason); 6294 else if (event->u.mlme.status == MLME_TIMEOUT) 6295 CHECK_MLME_TRIGGER(stop_auth_timeout, 6296 "AUTH TIMEOUT"); 6297 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6298 CHECK_MLME_TRIGGER(stop_rx_deauth, 6299 "DEAUTH RX %d", event->u.mlme.reason); 6300 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6301 CHECK_MLME_TRIGGER(stop_tx_deauth, 6302 "DEAUTH TX %d", event->u.mlme.reason); 6303 } 6304 #undef CHECK_MLME_TRIGGER 6305 } 6306 6307 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6308 struct ieee80211_vif *vif, 6309 const struct ieee80211_event *event) 6310 { 6311 struct iwl_fw_dbg_trigger_tlv *trig; 6312 struct iwl_fw_dbg_trigger_ba *ba_trig; 6313 6314 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6315 FW_DBG_TRIGGER_BA); 6316 if (!trig) 6317 return; 6318 6319 ba_trig = (void *)trig->data; 6320 6321 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6322 return; 6323 6324 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6325 "BAR received from %pM, tid %d, ssn %d", 6326 event->u.ba.sta->addr, event->u.ba.tid, 6327 event->u.ba.ssn); 6328 } 6329 6330 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6331 struct ieee80211_vif *vif, 6332 const struct ieee80211_event *event) 6333 { 6334 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6335 6336 switch (event->type) { 6337 case MLME_EVENT: 6338 iwl_mvm_event_mlme_callback(mvm, vif, event); 6339 break; 6340 case BAR_RX_EVENT: 6341 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6342 break; 6343 case BA_FRAME_TIMEOUT: 6344 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6345 event->u.ba.tid); 6346 break; 6347 default: 6348 break; 6349 } 6350 } 6351 6352 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6353 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6354 enum iwl_mvm_rxq_notif_type type, 6355 bool sync, 6356 const void *data, u32 size) 6357 { 6358 DEFINE_RAW_FLEX(struct iwl_rxq_sync_cmd, cmd, payload, 6359 sizeof(struct iwl_mvm_internal_rxq_notif)); 6360 struct iwl_mvm_internal_rxq_notif *notif = 6361 (struct iwl_mvm_internal_rxq_notif *)cmd->payload; 6362 struct iwl_host_cmd hcmd = { 6363 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6364 .data[0] = &cmd, 6365 .len[0] = sizeof(cmd), 6366 .data[1] = data, 6367 .len[1] = size, 6368 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6369 }; 6370 int ret; 6371 6372 cmd->rxq_mask = cpu_to_le32(BIT(mvm->trans->info.num_rxqs) - 1); 6373 cmd->count = cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6374 size); 6375 notif->type = type; 6376 notif->sync = sync; 6377 6378 /* size must be a multiple of DWORD */ 6379 if (WARN_ON(cmd->count & cpu_to_le32(3))) 6380 return; 6381 6382 if (!iwl_mvm_has_new_rx_api(mvm)) 6383 return; 6384 6385 if (sync) { 6386 notif->cookie = mvm->queue_sync_cookie; 6387 mvm->queue_sync_state = (1 << mvm->trans->info.num_rxqs) - 1; 6388 } 6389 6390 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6391 if (ret) { 6392 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6393 goto out; 6394 } 6395 6396 if (sync) { 6397 lockdep_assert_held(&mvm->mutex); 6398 ret = wait_event_timeout(mvm->rx_sync_waitq, 6399 READ_ONCE(mvm->queue_sync_state) == 0, 6400 SYNC_RX_QUEUE_TIMEOUT); 6401 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6402 mvm->queue_sync_state, 6403 mvm->queue_sync_cookie); 6404 } 6405 6406 out: 6407 if (sync) { 6408 mvm->queue_sync_state = 0; 6409 mvm->queue_sync_cookie++; 6410 } 6411 } 6412 6413 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6414 { 6415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6416 6417 guard(mvm)(mvm); 6418 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6419 } 6420 6421 int 6422 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6423 struct ieee80211_vif *vif, 6424 struct cfg80211_ftm_responder_stats *stats) 6425 { 6426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6428 6429 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6430 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6431 return -EINVAL; 6432 6433 mutex_lock(&mvm->mutex); 6434 *stats = mvm->ftm_resp_stats; 6435 mutex_unlock(&mvm->mutex); 6436 6437 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6438 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6439 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6440 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6441 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6442 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6443 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6444 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6445 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6446 6447 return 0; 6448 } 6449 6450 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6451 struct cfg80211_pmsr_request *request) 6452 { 6453 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6454 6455 guard(mvm)(mvm); 6456 return iwl_mvm_ftm_start(mvm, vif, request); 6457 } 6458 6459 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6460 struct cfg80211_pmsr_request *request) 6461 { 6462 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6463 6464 guard(mvm)(mvm); 6465 iwl_mvm_ftm_abort(mvm, request); 6466 } 6467 6468 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6469 { 6470 u8 protocol = ip_hdr(skb)->protocol; 6471 6472 if (!IS_ENABLED(CONFIG_INET)) 6473 return false; 6474 6475 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6476 } 6477 6478 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6479 struct sk_buff *head, 6480 struct sk_buff *skb) 6481 { 6482 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6483 6484 /* For now don't aggregate IPv6 in AMSDU */ 6485 if (skb->protocol != htons(ETH_P_IP)) 6486 return false; 6487 6488 if (!iwl_mvm_is_csum_supported(mvm)) 6489 return true; 6490 6491 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6492 } 6493 6494 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6495 struct ieee80211_vif *vif, 6496 struct cfg80211_set_hw_timestamp *hwts) 6497 { 6498 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6499 u32 protocols = 0; 6500 6501 /* HW timestamping is only supported for a specific station */ 6502 if (!hwts->macaddr) 6503 return -EOPNOTSUPP; 6504 6505 if (hwts->enable) 6506 protocols = 6507 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6508 6509 guard(mvm)(mvm); 6510 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6511 } 6512 6513 const struct ieee80211_ops iwl_mvm_hw_ops = { 6514 .tx = iwl_mvm_mac_tx, 6515 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6516 .ampdu_action = iwl_mvm_mac_ampdu_action, 6517 .get_antenna = iwl_mvm_op_get_antenna, 6518 .set_antenna = iwl_mvm_op_set_antenna, 6519 .start = iwl_mvm_mac_start, 6520 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6521 .stop = iwl_mvm_mac_stop, 6522 .add_interface = iwl_mvm_mac_add_interface, 6523 .remove_interface = iwl_mvm_mac_remove_interface, 6524 .config = iwl_mvm_mac_config, 6525 .prepare_multicast = iwl_mvm_prepare_multicast, 6526 .configure_filter = iwl_mvm_configure_filter, 6527 .config_iface_filter = iwl_mvm_config_iface_filter, 6528 .bss_info_changed = iwl_mvm_bss_info_changed, 6529 .hw_scan = iwl_mvm_mac_hw_scan, 6530 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6531 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6532 .sta_state = iwl_mvm_mac_sta_state, 6533 .sta_notify = iwl_mvm_mac_sta_notify, 6534 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6535 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6536 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6537 .link_sta_rc_update = iwl_mvm_sta_rc_update, 6538 .conf_tx = iwl_mvm_mac_conf_tx, 6539 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6540 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6541 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6542 .flush = iwl_mvm_mac_flush, 6543 .flush_sta = iwl_mvm_mac_flush_sta, 6544 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6545 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6546 .set_key = iwl_mvm_mac_set_key, 6547 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6548 .remain_on_channel = iwl_mvm_roc, 6549 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6550 .add_chanctx = iwl_mvm_add_chanctx, 6551 .remove_chanctx = iwl_mvm_remove_chanctx, 6552 .change_chanctx = iwl_mvm_change_chanctx, 6553 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6554 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6555 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6556 6557 .start_ap = iwl_mvm_start_ap, 6558 .stop_ap = iwl_mvm_stop_ap, 6559 .join_ibss = iwl_mvm_start_ibss, 6560 .leave_ibss = iwl_mvm_stop_ibss, 6561 6562 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6563 6564 .set_tim = iwl_mvm_set_tim, 6565 6566 .channel_switch = iwl_mvm_channel_switch, 6567 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6568 .post_channel_switch = iwl_mvm_post_channel_switch, 6569 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6570 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6571 6572 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6573 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6574 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6575 6576 .event_callback = iwl_mvm_mac_event_callback, 6577 6578 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6579 6580 #ifdef CONFIG_PM_SLEEP 6581 /* look at d3.c */ 6582 .suspend = iwl_mvm_suspend, 6583 .resume = iwl_mvm_resume, 6584 .set_wakeup = iwl_mvm_set_wakeup, 6585 .set_rekey_data = iwl_mvm_set_rekey_data, 6586 #if IS_ENABLED(CONFIG_IPV6) 6587 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6588 #endif 6589 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6590 #endif 6591 .get_survey = iwl_mvm_mac_get_survey, 6592 .sta_statistics = iwl_mvm_mac_sta_statistics, 6593 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6594 .start_pmsr = iwl_mvm_start_pmsr, 6595 .abort_pmsr = iwl_mvm_abort_pmsr, 6596 6597 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6598 #ifdef CONFIG_IWLWIFI_DEBUGFS 6599 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6600 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6601 #endif 6602 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6603 }; 6604