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