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 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1429 flush_work(&mvm->async_handlers_wk); 1430 flush_work(&mvm->add_stream_wk); 1431 1432 /* 1433 * Lock and clear the firmware running bit here already, so that 1434 * new commands coming in elsewhere, e.g. from debugfs, will not 1435 * be able to proceed. This is important here because one of those 1436 * debugfs files causes the firmware dump to be triggered, and if we 1437 * don't stop debugfs accesses before canceling that it could be 1438 * retriggered after we flush it but before we've cleared the bit. 1439 */ 1440 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1441 1442 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1443 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1444 1445 /* 1446 * The work item could be running or queued if the 1447 * ROC time event stops just as we get here. 1448 */ 1449 flush_work(&mvm->roc_done_wk); 1450 1451 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1452 1453 mutex_lock(&mvm->mutex); 1454 __iwl_mvm_mac_stop(mvm, suspend); 1455 mutex_unlock(&mvm->mutex); 1456 1457 /* 1458 * The worker might have been waiting for the mutex, let it run and 1459 * discover that its list is now empty. 1460 */ 1461 cancel_work_sync(&mvm->async_handlers_wk); 1462 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1463 } 1464 1465 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1466 { 1467 u16 i; 1468 1469 lockdep_assert_held(&mvm->mutex); 1470 1471 for (i = 0; i < NUM_PHY_CTX; i++) 1472 if (!mvm->phy_ctxts[i].ref) 1473 return &mvm->phy_ctxts[i]; 1474 1475 IWL_ERR(mvm, "No available PHY context\n"); 1476 return NULL; 1477 } 1478 1479 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, 1480 struct ieee80211_bss_conf *link_conf, 1481 s16 tx_power) 1482 { 1483 u32 cmd_id = REDUCE_TX_POWER_CMD; 1484 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(link_conf->vif); 1485 u32 mac_id = mvmvif->id; 1486 int len; 1487 struct iwl_dev_tx_power_cmd_v3_v8 cmd = { 1488 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK), 1489 .common.link_id = cpu_to_le32(mac_id), 1490 }; 1491 struct iwl_dev_tx_power_cmd cmd_v9_v10; 1492 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3); 1493 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ? 1494 IWL_DEV_MAX_TX_POWER : 8 * tx_power; 1495 void *cmd_data = &cmd; 1496 1497 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power); 1498 1499 if (cmd_ver > 8) { 1500 u32 link_id; 1501 1502 if (WARN_ON(!mvmvif->link[link_conf->link_id])) 1503 return -ENODEV; 1504 1505 link_id = mvmvif->link[link_conf->link_id]->fw_link_id; 1506 1507 /* Those fields sit on the same place for v9 and v10 */ 1508 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK); 1509 cmd_v9_v10.common.link_id = cpu_to_le32(link_id); 1510 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power); 1511 cmd_data = &cmd_v9_v10; 1512 } 1513 1514 if (cmd_ver == 10) 1515 len = sizeof(cmd_v9_v10.v10); 1516 else if (cmd_ver == 9) 1517 len = sizeof(cmd_v9_v10.v9); 1518 else if (cmd_ver == 8) 1519 len = sizeof(cmd.v8); 1520 else if (fw_has_api(&mvm->fw->ucode_capa, 1521 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1522 len = sizeof(cmd.v5); 1523 else if (fw_has_capa(&mvm->fw->ucode_capa, 1524 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1525 len = sizeof(cmd.v4); 1526 else 1527 len = sizeof(cmd.v3); 1528 1529 /* all structs have the same common part, add its length */ 1530 len += sizeof(cmd.common); 1531 1532 if (cmd_ver < 9) 1533 len += sizeof(cmd.per_band); 1534 1535 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data); 1536 1537 } 1538 1539 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1540 { 1541 struct ieee80211_hw *hw = data; 1542 int i; 1543 1544 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1545 struct iwl_mvm_txq *mvmtxq = 1546 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1547 1548 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1549 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1550 } 1551 } 1552 1553 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1554 struct ieee80211_vif *vif, 1555 struct ieee80211_bss_conf *link_conf) 1556 { 1557 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1559 int ret; 1560 1561 mutex_lock(&mvm->mutex); 1562 1563 if (vif->type == NL80211_IFTYPE_STATION) { 1564 struct iwl_mvm_sta *mvmsta; 1565 unsigned int link_id = link_conf->link_id; 1566 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1567 1568 mvmvif->csa_bcn_pending = false; 1569 mvmvif->csa_blocks_tx = false; 1570 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1571 1572 if (WARN_ON(!mvmsta)) { 1573 ret = -EIO; 1574 goto out_unlock; 1575 } 1576 1577 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1578 if (mvm->mld_api_is_used) 1579 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1580 else 1581 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1582 1583 if (!fw_has_capa(&mvm->fw->ucode_capa, 1584 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1585 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1586 if (ret) 1587 goto out_unlock; 1588 1589 iwl_mvm_stop_session_protection(mvm, vif); 1590 } 1591 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1592 struct iwl_mvm_txq *mvmtxq = 1593 iwl_mvm_txq_from_mac80211(vif->txq); 1594 1595 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1596 1597 local_bh_disable(); 1598 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1599 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1600 local_bh_enable(); 1601 1602 mvmvif->csa_blocks_tx = false; 1603 } 1604 1605 mvmvif->ps_disabled = false; 1606 1607 ret = iwl_mvm_power_update_ps(mvm); 1608 1609 out_unlock: 1610 if (mvmvif->csa_failed) 1611 ret = -EIO; 1612 mutex_unlock(&mvm->mutex); 1613 1614 return ret; 1615 } 1616 1617 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1618 struct ieee80211_vif *vif, 1619 struct ieee80211_bss_conf *link_conf) 1620 { 1621 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1622 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1623 struct iwl_chan_switch_te_cmd cmd = { 1624 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1625 mvmvif->color)), 1626 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1627 }; 1628 1629 /* 1630 * In the new flow since FW is in charge of the timing, 1631 * if driver has canceled the channel switch he will receive the 1632 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1633 */ 1634 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1635 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1636 return; 1637 1638 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1639 1640 mutex_lock(&mvm->mutex); 1641 if (!fw_has_capa(&mvm->fw->ucode_capa, 1642 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1643 iwl_mvm_remove_csa_period(mvm, vif); 1644 else 1645 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1646 WIDE_ID(MAC_CONF_GROUP, 1647 CHANNEL_SWITCH_TIME_EVENT_CMD), 1648 0, sizeof(cmd), &cmd)); 1649 mvmvif->csa_failed = true; 1650 mutex_unlock(&mvm->mutex); 1651 1652 /* If we're here, we can't support MLD */ 1653 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1654 } 1655 1656 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1657 { 1658 struct iwl_mvm_vif *mvmvif; 1659 struct ieee80211_vif *vif; 1660 1661 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1662 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1663 1664 /* Trigger disconnect (should clear the CSA state) */ 1665 ieee80211_chswitch_done(vif, false, 0); 1666 } 1667 1668 static u8 1669 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1670 { 1671 int data_start; 1672 int control_start; 1673 int bw; 1674 1675 if (chandef->width == NL80211_CHAN_WIDTH_320) 1676 bw = 320; 1677 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1678 bw = 160; 1679 else 1680 return 0; 1681 1682 /* data is bw wide so the start is half the width */ 1683 data_start = chandef->center_freq1 - bw / 2; 1684 /* control is 20Mhz width */ 1685 control_start = chandef->chan->center_freq - 10; 1686 1687 return (control_start - data_start) / 80; 1688 } 1689 1690 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1691 struct ieee80211_vif *vif) 1692 { 1693 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1694 int ret; 1695 1696 lockdep_assert_held(&mvm->mutex); 1697 1698 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1699 if (ret) { 1700 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1701 return ret; 1702 } 1703 1704 /* Only queue for this station is the mcast queue, 1705 * which shouldn't be in TFD mask anyway 1706 */ 1707 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1708 vif->type, 1709 IWL_STA_MULTICAST); 1710 } 1711 1712 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1713 { 1714 lockdep_assert_held(&mvm->mutex); 1715 1716 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1717 return; 1718 1719 mvmvif->deflink.average_beacon_energy = 0; 1720 1721 INIT_DELAYED_WORK(&mvmvif->csa_work, 1722 iwl_mvm_channel_switch_disconnect_wk); 1723 } 1724 1725 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1726 struct ieee80211_vif *vif) 1727 { 1728 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1729 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1730 int ret; 1731 int i; 1732 1733 mutex_lock(&mvm->mutex); 1734 1735 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1736 1737 mvmvif->mvm = mvm; 1738 1739 /* the first link always points to the default one */ 1740 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1741 mvmvif->deflink.active = 0; 1742 mvmvif->link[0] = &mvmvif->deflink; 1743 1744 vif->driver_flags = IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC; 1745 1746 iwl_mvm_set_link_fw_id(mvm, vif, &vif->bss_conf); 1747 1748 /* 1749 * Not much to do here. The stack will not allow interface 1750 * types or combinations that we didn't advertise, so we 1751 * don't really have to check the types. 1752 */ 1753 1754 /* make sure that beacon statistics don't go backwards with FW reset */ 1755 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1756 for_each_mvm_vif_valid_link(mvmvif, i) 1757 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1758 mvmvif->link[i]->beacon_stats.num_beacons; 1759 1760 /* Allocate resources for the MAC context, and add it to the fw */ 1761 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1762 if (ret) 1763 goto out; 1764 1765 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1766 1767 /* 1768 * The AP binding flow can be done only after the beacon 1769 * template is configured (which happens only in the mac80211 1770 * start_ap() flow), and adding the broadcast station can happen 1771 * only after the binding. 1772 * In addition, since modifying the MAC before adding a bcast 1773 * station is not allowed by the FW, delay the adding of MAC context to 1774 * the point where we can also add the bcast station. 1775 * In short: there's not much we can do at this point, other than 1776 * allocating resources :) 1777 */ 1778 if (vif->type == NL80211_IFTYPE_AP || 1779 vif->type == NL80211_IFTYPE_ADHOC) { 1780 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1781 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1782 ret = 0; 1783 goto out; 1784 } 1785 1786 mvmvif->features |= hw->netdev_features; 1787 1788 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1789 if (ret) 1790 goto out_unlock; 1791 1792 ret = iwl_mvm_power_update_mac(mvm); 1793 if (ret) 1794 goto out_remove_mac; 1795 1796 /* beacon filtering */ 1797 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1798 if (ret) 1799 goto out_remove_mac; 1800 1801 if (!mvm->bf_allowed_vif && 1802 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1803 mvm->bf_allowed_vif = mvmvif; 1804 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1805 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1806 } 1807 1808 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1809 mvm->p2p_device_vif = vif; 1810 1811 iwl_mvm_tcm_add_vif(mvm, vif); 1812 1813 if (vif->type == NL80211_IFTYPE_MONITOR) { 1814 mvm->monitor_on = true; 1815 mvm->monitor_p80 = 1816 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1817 } 1818 1819 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1820 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1821 1822 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1823 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1824 !mvm->csme_vif && mvm->mei_registered) { 1825 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1826 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1827 mvm->csme_vif = vif; 1828 } 1829 1830 out: 1831 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1832 vif->type == NL80211_IFTYPE_ADHOC)) 1833 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1834 1835 goto out_unlock; 1836 1837 out_remove_mac: 1838 mvmvif->deflink.phy_ctxt = NULL; 1839 iwl_mvm_mac_ctxt_remove(mvm, vif); 1840 out_unlock: 1841 mutex_unlock(&mvm->mutex); 1842 1843 return ret; 1844 } 1845 1846 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1847 struct ieee80211_vif *vif) 1848 { 1849 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1850 1851 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1852 /* 1853 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1854 * We assume here that all the packets sent to the OFFCHANNEL 1855 * queue are sent in ROC session. 1856 */ 1857 flush_work(&mvm->roc_done_wk); 1858 } 1859 1860 cancel_delayed_work_sync(&mvmvif->csa_work); 1861 } 1862 1863 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1864 struct ieee80211_vif *vif) 1865 { 1866 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1867 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1868 struct iwl_probe_resp_data *probe_data; 1869 1870 iwl_mvm_prepare_mac_removal(mvm, vif); 1871 1872 if (!(vif->type == NL80211_IFTYPE_AP || 1873 vif->type == NL80211_IFTYPE_ADHOC)) 1874 iwl_mvm_tcm_rm_vif(mvm, vif); 1875 1876 mutex_lock(&mvm->mutex); 1877 1878 if (vif == mvm->csme_vif) { 1879 iwl_mei_set_netdev(NULL); 1880 mvm->csme_vif = NULL; 1881 } 1882 1883 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1884 lockdep_is_held(&mvm->mutex)); 1885 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1886 if (probe_data) 1887 kfree_rcu(probe_data, rcu_head); 1888 1889 if (mvm->bf_allowed_vif == mvmvif) { 1890 mvm->bf_allowed_vif = NULL; 1891 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1892 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1893 } 1894 1895 if (vif->bss_conf.ftm_responder) 1896 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1897 1898 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1899 1900 /* 1901 * For AP/GO interface, the tear down of the resources allocated to the 1902 * interface is be handled as part of the stop_ap flow. 1903 */ 1904 if (vif->type == NL80211_IFTYPE_AP || 1905 vif->type == NL80211_IFTYPE_ADHOC) 1906 goto out; 1907 1908 iwl_mvm_power_update_mac(mvm); 1909 1910 /* Before the interface removal, mac80211 would cancel the ROC, and the 1911 * ROC worker would be scheduled if needed. The worker would be flushed 1912 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1913 * binding etc. so nothing needs to be done here. 1914 */ 1915 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1916 if (mvmvif->deflink.phy_ctxt) { 1917 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1918 mvmvif->deflink.phy_ctxt = NULL; 1919 } 1920 mvm->p2p_device_vif = NULL; 1921 } 1922 1923 iwl_mvm_mac_ctxt_remove(mvm, vif); 1924 1925 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1926 1927 if (vif->type == NL80211_IFTYPE_MONITOR) 1928 mvm->monitor_on = false; 1929 1930 out: 1931 if (vif->type == NL80211_IFTYPE_AP || 1932 vif->type == NL80211_IFTYPE_ADHOC) { 1933 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1934 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1935 } 1936 1937 mutex_unlock(&mvm->mutex); 1938 } 1939 1940 struct iwl_mvm_mc_iter_data { 1941 struct iwl_mvm *mvm; 1942 int port_id; 1943 }; 1944 1945 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1946 struct ieee80211_vif *vif) 1947 { 1948 struct iwl_mvm_mc_iter_data *data = _data; 1949 struct iwl_mvm *mvm = data->mvm; 1950 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1951 struct iwl_host_cmd hcmd = { 1952 .id = MCAST_FILTER_CMD, 1953 .flags = CMD_ASYNC, 1954 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1955 }; 1956 int ret, len; 1957 1958 /* if we don't have free ports, mcast frames will be dropped */ 1959 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1960 return; 1961 1962 if (vif->type != NL80211_IFTYPE_STATION || 1963 !vif->cfg.assoc) 1964 return; 1965 1966 cmd->port_id = data->port_id++; 1967 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1968 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1969 1970 hcmd.len[0] = len; 1971 hcmd.data[0] = cmd; 1972 1973 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1974 if (ret) 1975 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1976 } 1977 1978 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1979 { 1980 struct iwl_mvm_mc_iter_data iter_data = { 1981 .mvm = mvm, 1982 }; 1983 int ret; 1984 1985 lockdep_assert_held(&mvm->mutex); 1986 1987 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1988 return; 1989 1990 ieee80211_iterate_active_interfaces_atomic( 1991 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1992 iwl_mvm_mc_iface_iterator, &iter_data); 1993 1994 /* 1995 * Send a (synchronous) ech command so that we wait for the 1996 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1997 * the interface iterator. Otherwise, we might get here over 1998 * and over again (by userspace just sending a lot of these) 1999 * and the CPU can send them faster than the firmware can 2000 * process them. 2001 * Note that the CPU is still faster - but with this we'll 2002 * actually send fewer commands overall because the CPU will 2003 * not schedule the work in mac80211 as frequently if it's 2004 * still running when rescheduled (possibly multiple times). 2005 */ 2006 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2007 if (ret) 2008 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2009 } 2010 2011 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2012 struct netdev_hw_addr_list *mc_list) 2013 { 2014 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2015 struct iwl_mcast_filter_cmd *cmd; 2016 struct netdev_hw_addr *addr; 2017 int addr_count; 2018 bool pass_all; 2019 int len; 2020 2021 addr_count = netdev_hw_addr_list_count(mc_list); 2022 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2023 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2024 if (pass_all) 2025 addr_count = 0; 2026 2027 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2028 cmd = kzalloc(len, GFP_ATOMIC); 2029 if (!cmd) 2030 return 0; 2031 2032 if (pass_all) { 2033 cmd->pass_all = 1; 2034 return (u64)(unsigned long)cmd; 2035 } 2036 2037 netdev_hw_addr_list_for_each(addr, mc_list) { 2038 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2039 cmd->count, addr->addr); 2040 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2041 addr->addr, ETH_ALEN); 2042 cmd->count++; 2043 } 2044 2045 return (u64)(unsigned long)cmd; 2046 } 2047 2048 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2049 unsigned int changed_flags, 2050 unsigned int *total_flags, u64 multicast) 2051 { 2052 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2053 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2054 2055 guard(mvm)(mvm); 2056 2057 /* replace previous configuration */ 2058 kfree(mvm->mcast_filter_cmd); 2059 mvm->mcast_filter_cmd = cmd; 2060 2061 if (!cmd) 2062 goto out; 2063 2064 if (changed_flags & FIF_ALLMULTI) 2065 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2066 2067 if (cmd->pass_all) 2068 cmd->count = 0; 2069 2070 iwl_mvm_recalc_multicast(mvm); 2071 out: 2072 *total_flags = 0; 2073 } 2074 2075 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2076 struct ieee80211_vif *vif, 2077 unsigned int filter_flags, 2078 unsigned int changed_flags) 2079 { 2080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2081 2082 /* We support only filter for probe requests */ 2083 if (!(changed_flags & FIF_PROBE_REQ)) 2084 return; 2085 2086 /* Supported only for p2p client interfaces */ 2087 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2088 !vif->p2p) 2089 return; 2090 2091 guard(mvm)(mvm); 2092 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2093 } 2094 2095 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2096 { 2097 struct iwl_mu_group_mgmt_cmd cmd = {}; 2098 2099 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2100 WLAN_MEMBERSHIP_LEN); 2101 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2102 WLAN_USER_POSITION_LEN); 2103 2104 return iwl_mvm_send_cmd_pdu(mvm, 2105 WIDE_ID(DATA_PATH_GROUP, 2106 UPDATE_MU_GROUPS_CMD), 2107 0, sizeof(cmd), &cmd); 2108 } 2109 2110 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2111 struct ieee80211_vif *vif) 2112 { 2113 if (vif->bss_conf.mu_mimo_owner) { 2114 struct iwl_mu_group_mgmt_notif *notif = _data; 2115 2116 /* 2117 * MU-MIMO Group Id action frame is little endian. We treat 2118 * the data received from firmware as if it came from the 2119 * action frame, so no conversion is needed. 2120 */ 2121 ieee80211_update_mu_groups(vif, 0, 2122 (u8 *)¬if->membership_status, 2123 (u8 *)¬if->user_position); 2124 } 2125 } 2126 2127 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2128 struct iwl_rx_cmd_buffer *rxb) 2129 { 2130 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2131 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2132 2133 ieee80211_iterate_active_interfaces_atomic( 2134 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2135 iwl_mvm_mu_mimo_iface_iterator, notif); 2136 } 2137 2138 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2139 { 2140 u8 byte_num = ppe_pos_bit / 8; 2141 u8 bit_num = ppe_pos_bit % 8; 2142 u8 residue_bits; 2143 u8 res; 2144 2145 if (bit_num <= 5) 2146 return (ppe[byte_num] >> bit_num) & 2147 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2148 2149 /* 2150 * If bit_num > 5, we have to combine bits with next byte. 2151 * Calculate how many bits we need to take from current byte (called 2152 * here "residue_bits"), and add them to bits from next byte. 2153 */ 2154 2155 residue_bits = 8 - bit_num; 2156 2157 res = (ppe[byte_num + 1] & 2158 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2159 residue_bits; 2160 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2161 2162 return res; 2163 } 2164 2165 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2166 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2167 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2168 bool inheritance) 2169 { 2170 int i; 2171 2172 /* 2173 * FW currently supports only nss == MAX_HE_SUPP_NSS 2174 * 2175 * If nss > MAX: we can ignore values we don't support 2176 * If nss < MAX: we can set zeros in other streams 2177 */ 2178 if (nss > MAX_HE_SUPP_NSS) { 2179 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2180 MAX_HE_SUPP_NSS); 2181 nss = MAX_HE_SUPP_NSS; 2182 } 2183 2184 for (i = 0; i < nss; i++) { 2185 u8 ru_index_tmp = ru_index_bitmap << 1; 2186 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2187 u8 bw; 2188 2189 for (bw = 0; 2190 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2191 bw++) { 2192 ru_index_tmp >>= 1; 2193 2194 /* 2195 * According to the 11be spec, if for a specific BW the PPE Thresholds 2196 * isn't present - it should inherit the thresholds from the last 2197 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2198 * this inheritance - continue in this case 2199 */ 2200 if (!(ru_index_tmp & 1)) { 2201 if (inheritance) 2202 goto set_thresholds; 2203 else 2204 continue; 2205 } 2206 2207 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2208 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2209 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2210 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2211 2212 set_thresholds: 2213 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2214 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2215 } 2216 } 2217 } 2218 2219 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2220 struct ieee80211_link_sta *link_sta, 2221 struct iwl_he_pkt_ext_v2 *pkt_ext, 2222 bool inheritance) 2223 { 2224 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2225 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2226 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2227 u8 ru_index_bitmap = 2228 u8_get_bits(*ppe, 2229 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2230 /* Starting after PPE header */ 2231 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2232 2233 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2234 inheritance); 2235 } 2236 2237 static int 2238 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2239 u8 nominal_padding) 2240 { 2241 int low_th = -1; 2242 int high_th = -1; 2243 int i; 2244 2245 /* all the macros are the same for EHT and HE */ 2246 switch (nominal_padding) { 2247 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2248 low_th = IWL_HE_PKT_EXT_NONE; 2249 high_th = IWL_HE_PKT_EXT_NONE; 2250 break; 2251 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2252 low_th = IWL_HE_PKT_EXT_BPSK; 2253 high_th = IWL_HE_PKT_EXT_NONE; 2254 break; 2255 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2256 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2257 low_th = IWL_HE_PKT_EXT_NONE; 2258 high_th = IWL_HE_PKT_EXT_BPSK; 2259 break; 2260 } 2261 2262 if (low_th < 0 || high_th < 0) 2263 return -EINVAL; 2264 2265 /* Set the PPE thresholds accordingly */ 2266 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2267 u8 bw; 2268 2269 for (bw = 0; 2270 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2271 bw++) { 2272 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2273 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2274 } 2275 } 2276 2277 return 0; 2278 } 2279 2280 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2281 u8 nominal_padding) 2282 { 2283 int i; 2284 2285 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2286 u8 bw; 2287 2288 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2289 bw++) { 2290 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2291 2292 if (nominal_padding > 2293 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2294 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2295 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2296 else if (nominal_padding == 2297 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2298 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2299 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2300 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2301 } 2302 } 2303 } 2304 2305 /* Set the pkt_ext field according to PPE Thresholds element */ 2306 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2307 struct ieee80211_link_sta *link_sta, 2308 struct iwl_he_pkt_ext_v2 *pkt_ext) 2309 { 2310 u8 nominal_padding; 2311 int i, ret = 0; 2312 2313 if (WARN_ON(!link_sta)) 2314 return -EINVAL; 2315 2316 /* Initialize the PPE thresholds to "None" (7), as described in Table 2317 * 9-262ac of 80211.ax/D3.0. 2318 */ 2319 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2320 sizeof(struct iwl_he_pkt_ext_v2)); 2321 2322 if (link_sta->eht_cap.has_eht) { 2323 nominal_padding = 2324 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2325 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2326 2327 /* If PPE Thresholds exists, parse them into a FW-familiar 2328 * format. 2329 */ 2330 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2331 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2332 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2333 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2334 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2335 u8 ru_index_bitmap = 2336 u16_get_bits(*ppe, 2337 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2338 /* Starting after PPE header */ 2339 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2340 2341 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2342 ppe, ppe_pos_bit, true); 2343 /* EHT PPE Thresholds doesn't exist - set the API according to 2344 * HE PPE Tresholds 2345 */ 2346 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2347 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2348 /* Even though HE Capabilities IE doesn't contain PPE 2349 * Thresholds for BW 320Mhz, thresholds for this BW will 2350 * be filled in with the same values as 160Mhz, due to 2351 * the inheritance, as required. 2352 */ 2353 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2354 true); 2355 2356 /* According to the requirements, for MCSs 12-13 the 2357 * maximum value between HE PPE Threshold and Common 2358 * Nominal Packet Padding needs to be taken 2359 */ 2360 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2361 2362 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2363 * take the Thresholds from Common Nominal Packet Padding field 2364 */ 2365 } else { 2366 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2367 nominal_padding); 2368 } 2369 } else if (link_sta->he_cap.has_he) { 2370 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2371 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2372 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2373 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2374 false); 2375 /* PPE Thresholds doesn't exist - set the API PPE values 2376 * according to Common Nominal Packet Padding field. 2377 */ 2378 } else { 2379 nominal_padding = 2380 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2381 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2382 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2383 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2384 nominal_padding); 2385 } 2386 } 2387 2388 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2389 int bw; 2390 2391 for (bw = 0; 2392 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2393 bw++) { 2394 u8 *qam_th = 2395 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2396 2397 IWL_DEBUG_HT(mvm, 2398 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2399 i, bw, qam_th[0], qam_th[1]); 2400 } 2401 } 2402 return ret; 2403 } 2404 2405 /* 2406 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2407 * is enabled or not 2408 */ 2409 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2410 const struct iwl_mvm_vif_link_info *link_info, 2411 struct iwl_he_backoff_conf *trig_based_txf) 2412 { 2413 int i; 2414 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2415 bool mu_edca_enabled = true; 2416 2417 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2418 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2419 &link_info->queue_params[i].mu_edca_param_rec; 2420 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2421 2422 if (!link_info->queue_params[i].mu_edca) { 2423 mu_edca_enabled = false; 2424 break; 2425 } 2426 2427 trig_based_txf[ac].cwmin = 2428 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2429 trig_based_txf[ac].cwmax = 2430 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2431 trig_based_txf[ac].aifsn = 2432 cpu_to_le16(mu_edca->aifsn & 0xf); 2433 trig_based_txf[ac].mu_time = 2434 cpu_to_le16(mu_edca->mu_edca_timer); 2435 } 2436 2437 return mu_edca_enabled; 2438 } 2439 2440 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2441 { 2442 const struct ieee80211_supported_band *sband; 2443 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2444 2445 /* This capability is the same for all bands, 2446 * so take it from one of them. 2447 */ 2448 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2449 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2450 2451 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2452 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2453 } 2454 2455 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2456 struct ieee80211_link_sta *link_sta) 2457 { 2458 u8 *mac_cap_info = 2459 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2460 __le32 htc_flags = 0; 2461 2462 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2463 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2464 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2465 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2466 u8 link_adap = 2467 ((mac_cap_info[2] & 2468 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2469 (mac_cap_info[1] & 2470 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2471 2472 if (link_adap == 2) 2473 htc_flags |= 2474 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2475 else if (link_adap == 3) 2476 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2477 } 2478 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2479 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2480 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2481 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2482 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2483 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2484 2485 return htc_flags; 2486 } 2487 2488 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2489 struct ieee80211_vif *vif, u8 sta_id) 2490 { 2491 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2492 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2493 .sta_id = sta_id, 2494 .tid_limit = IWL_MAX_TID_COUNT, 2495 .bss_color = vif->bss_conf.he_bss_color.color, 2496 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2497 .frame_time_rts_th = 2498 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2499 }; 2500 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2501 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2502 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2503 int size; 2504 struct ieee80211_sta *sta; 2505 u32 flags; 2506 int i; 2507 void *cmd; 2508 2509 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2510 ver = 1; 2511 2512 switch (ver) { 2513 case 1: 2514 /* same layout as v2 except some data at the end */ 2515 cmd = &sta_ctxt_cmd_v2; 2516 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2517 break; 2518 case 2: 2519 cmd = &sta_ctxt_cmd_v2; 2520 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2521 break; 2522 case 3: 2523 cmd = &sta_ctxt_cmd; 2524 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2525 break; 2526 default: 2527 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2528 return; 2529 } 2530 2531 rcu_read_lock(); 2532 2533 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2534 if (IS_ERR_OR_NULL(sta)) { 2535 rcu_read_unlock(); 2536 WARN(1, "Can't find STA to configure HE\n"); 2537 return; 2538 } 2539 2540 if (!sta->deflink.he_cap.has_he) { 2541 rcu_read_unlock(); 2542 return; 2543 } 2544 2545 flags = 0; 2546 2547 /* Block 26-tone RU OFDMA transmissions */ 2548 if (mvmvif->deflink.he_ru_2mhz_block) 2549 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2550 2551 /* HTC flags */ 2552 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2553 2554 /* PPE Thresholds */ 2555 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2556 flags |= STA_CTXT_HE_PACKET_EXT; 2557 2558 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2559 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2560 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2561 2562 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2563 IEEE80211_HE_MAC_CAP2_ACK_EN) 2564 flags |= STA_CTXT_HE_ACK_ENABLED; 2565 2566 rcu_read_unlock(); 2567 2568 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2569 &sta_ctxt_cmd.trig_based_txf[0])) 2570 flags |= STA_CTXT_HE_MU_EDCA_CW; 2571 2572 if (vif->bss_conf.uora_exists) { 2573 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2574 2575 sta_ctxt_cmd.rand_alloc_ecwmin = 2576 vif->bss_conf.uora_ocw_range & 0x7; 2577 sta_ctxt_cmd.rand_alloc_ecwmax = 2578 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2579 } 2580 2581 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2582 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2583 2584 if (vif->bss_conf.nontransmitted) { 2585 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2586 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2587 vif->bss_conf.transmitter_bssid); 2588 sta_ctxt_cmd.max_bssid_indicator = 2589 vif->bss_conf.bssid_indicator; 2590 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2591 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2592 sta_ctxt_cmd.profile_periodicity = 2593 vif->bss_conf.profile_periodicity; 2594 } 2595 2596 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2597 2598 if (ver < 3) { 2599 /* fields before pkt_ext */ 2600 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2601 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2602 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2603 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2604 2605 /* pkt_ext */ 2606 for (i = 0; 2607 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2608 i++) { 2609 u8 bw; 2610 2611 for (bw = 0; 2612 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2613 bw++) { 2614 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2615 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2616 2617 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2618 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2619 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2620 } 2621 } 2622 2623 /* fields after pkt_ext */ 2624 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2625 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2626 sizeof(sta_ctxt_cmd_v2) - 2627 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2628 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2629 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2630 (u8 *)&sta_ctxt_cmd + 2631 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2632 sizeof(sta_ctxt_cmd) - 2633 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2634 sta_ctxt_cmd_v2.reserved3 = 0; 2635 } 2636 2637 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2638 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2639 } 2640 2641 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2642 u32 duration_override, unsigned int link_id) 2643 { 2644 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2645 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2646 2647 if (duration_override > duration) 2648 duration = duration_override; 2649 2650 /* Try really hard to protect the session and hear a beacon 2651 * The new session protection command allows us to protect the 2652 * session for a much longer time since the firmware will internally 2653 * create two events: a 300TU one with a very high priority that 2654 * won't be fragmented which should be enough for 99% of the cases, 2655 * and another one (which we configure here to be 900TU long) which 2656 * will have a slightly lower priority, but more importantly, can be 2657 * fragmented so that it'll allow other activities to run. 2658 */ 2659 if (fw_has_capa(&mvm->fw->ucode_capa, 2660 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2661 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2662 min_duration, false, 2663 link_id); 2664 else 2665 iwl_mvm_protect_session(mvm, vif, duration, 2666 min_duration, 500, false); 2667 } 2668 2669 /* Handle association common part to MLD and non-MLD modes */ 2670 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2671 struct ieee80211_vif *vif, 2672 u64 changes) 2673 { 2674 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2675 int ret; 2676 int link_id; 2677 2678 /* The firmware tracks the MU-MIMO group on its own. 2679 * However, on HW restart we should restore this data. 2680 */ 2681 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2682 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2683 ret = iwl_mvm_update_mu_groups(mvm, vif); 2684 if (ret) 2685 IWL_ERR(mvm, 2686 "failed to update VHT MU_MIMO groups\n"); 2687 } 2688 2689 iwl_mvm_recalc_multicast(mvm); 2690 2691 /* reset rssi values */ 2692 for_each_mvm_vif_valid_link(mvmvif, link_id) 2693 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2694 2695 iwl_mvm_bt_coex_vif_change(mvm); 2696 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2697 IEEE80211_SMPS_AUTOMATIC); 2698 if (fw_has_capa(&mvm->fw->ucode_capa, 2699 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2700 iwl_mvm_config_scan(mvm); 2701 } 2702 2703 /* Execute the common part for MLD and non-MLD modes */ 2704 void 2705 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2706 struct ieee80211_vif *vif, 2707 struct ieee80211_bss_conf *link_conf, 2708 u64 changes) 2709 { 2710 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2711 int ret; 2712 2713 if (changes & BSS_CHANGED_BEACON_INFO) { 2714 /* We received a beacon from the associated AP so 2715 * remove the session protection. 2716 */ 2717 iwl_mvm_stop_session_protection(mvm, vif); 2718 2719 iwl_mvm_sf_update(mvm, vif, false); 2720 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2721 } 2722 2723 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2724 /* Send power command on every beacon change, 2725 * because we may have not enabled beacon abort yet. 2726 */ 2727 BSS_CHANGED_BEACON_INFO)) { 2728 ret = iwl_mvm_power_update_mac(mvm); 2729 if (ret) 2730 IWL_ERR(mvm, "failed to update power mode\n"); 2731 } 2732 2733 if (changes & BSS_CHANGED_CQM) { 2734 struct iwl_mvm_vif_link_info *link_info = 2735 mvmvif->link[link_conf->link_id]; 2736 2737 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2738 if (link_info) 2739 link_info->bf_data.last_cqm_event = 0; 2740 2741 if (mvmvif->bf_enabled) { 2742 /* FIXME: need to update per link when FW API will 2743 * support it 2744 */ 2745 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2746 if (ret) 2747 IWL_ERR(mvm, 2748 "failed to update CQM thresholds\n"); 2749 } 2750 } 2751 2752 if (changes & BSS_CHANGED_BANDWIDTH) 2753 iwl_mvm_update_link_smps(vif, link_conf); 2754 2755 if (changes & BSS_CHANGED_TPE) { 2756 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2757 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2758 link_conf, 2759 false); 2760 } 2761 } 2762 2763 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2764 struct ieee80211_vif *vif, 2765 struct ieee80211_bss_conf *bss_conf, 2766 u64 changes) 2767 { 2768 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2769 int ret; 2770 int i; 2771 2772 /* 2773 * Re-calculate the tsf id, as the leader-follower relations depend 2774 * on the beacon interval, which was not known when the station 2775 * interface was added. 2776 */ 2777 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2778 if ((vif->bss_conf.he_support && 2779 !iwlwifi_mod_params.disable_11ax)) 2780 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2781 2782 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2783 } 2784 2785 /* Update MU EDCA params */ 2786 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2787 vif->cfg.assoc && 2788 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2789 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2790 2791 /* 2792 * If we're not associated yet, take the (new) BSSID before associating 2793 * so the firmware knows. If we're already associated, then use the old 2794 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2795 * branch for disassociation below. 2796 */ 2797 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2798 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2799 2800 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2801 if (ret) 2802 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2803 2804 /* after sending it once, adopt mac80211 data */ 2805 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2806 mvmvif->associated = vif->cfg.assoc; 2807 2808 if (changes & BSS_CHANGED_ASSOC) { 2809 if (vif->cfg.assoc) { 2810 mvmvif->session_prot_connection_loss = false; 2811 2812 /* clear statistics to get clean beacon counter */ 2813 iwl_mvm_request_statistics(mvm, true); 2814 for_each_mvm_vif_valid_link(mvmvif, i) 2815 memset(&mvmvif->link[i]->beacon_stats, 0, 2816 sizeof(mvmvif->link[i]->beacon_stats)); 2817 2818 /* add quota for this interface */ 2819 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2820 if (ret) { 2821 IWL_ERR(mvm, "failed to update quotas\n"); 2822 return; 2823 } 2824 2825 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2826 &mvm->status) && 2827 !fw_has_capa(&mvm->fw->ucode_capa, 2828 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2829 /* 2830 * If we're restarting then the firmware will 2831 * obviously have lost synchronisation with 2832 * the AP. It will attempt to synchronise by 2833 * itself, but we can make it more reliable by 2834 * scheduling a session protection time event. 2835 * 2836 * The firmware needs to receive a beacon to 2837 * catch up with synchronisation, use 110% of 2838 * the beacon interval. 2839 * 2840 * Set a large maximum delay to allow for more 2841 * than a single interface. 2842 * 2843 * For new firmware versions, rely on the 2844 * firmware. This is relevant for DCM scenarios 2845 * only anyway. 2846 */ 2847 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2848 iwl_mvm_protect_session(mvm, vif, dur, dur, 2849 5 * dur, false); 2850 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2851 &mvm->status) && 2852 !vif->bss_conf.dtim_period) { 2853 /* 2854 * If we're not restarting and still haven't 2855 * heard a beacon (dtim period unknown) then 2856 * make sure we still have enough minimum time 2857 * remaining in the time event, since the auth 2858 * might actually have taken quite a while 2859 * (especially for SAE) and so the remaining 2860 * time could be small without us having heard 2861 * a beacon yet. 2862 */ 2863 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2864 } 2865 2866 iwl_mvm_sf_update(mvm, vif, false); 2867 iwl_mvm_power_vif_assoc(mvm, vif); 2868 if (vif->p2p) { 2869 iwl_mvm_update_smps(mvm, vif, 2870 IWL_MVM_SMPS_REQ_PROT, 2871 IEEE80211_SMPS_DYNAMIC, 0); 2872 } 2873 } else if (mvmvif->deflink.ap_sta_id != IWL_INVALID_STA) { 2874 iwl_mvm_mei_host_disassociated(mvm); 2875 /* 2876 * If update fails - SF might be running in associated 2877 * mode while disassociated - which is forbidden. 2878 */ 2879 ret = iwl_mvm_sf_update(mvm, vif, false); 2880 WARN_ONCE(ret && 2881 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2882 &mvm->status), 2883 "Failed to update SF upon disassociation\n"); 2884 2885 /* remove quota for this interface */ 2886 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2887 if (ret) 2888 IWL_ERR(mvm, "failed to update quotas\n"); 2889 2890 /* this will take the cleared BSSID from bss_conf */ 2891 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2892 if (ret) 2893 IWL_ERR(mvm, 2894 "failed to update MAC %pM (clear after unassoc)\n", 2895 vif->addr); 2896 } 2897 2898 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2899 } 2900 2901 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2902 changes); 2903 } 2904 2905 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2906 struct ieee80211_vif *vif, 2907 int *ret) 2908 { 2909 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2910 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2911 int i; 2912 2913 lockdep_assert_held(&mvm->mutex); 2914 2915 mvmvif->ap_assoc_sta_count = 0; 2916 2917 /* must be set before quota calculations */ 2918 mvmvif->ap_ibss_active = true; 2919 2920 /* send all the early keys to the device now */ 2921 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2922 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2923 2924 if (!key) 2925 continue; 2926 2927 mvmvif->ap_early_keys[i] = NULL; 2928 2929 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2930 if (*ret) 2931 return true; 2932 } 2933 2934 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2935 iwl_mvm_vif_set_low_latency(mvmvif, true, 2936 LOW_LATENCY_VIF_TYPE); 2937 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2938 } 2939 2940 /* power updated needs to be done before quotas */ 2941 iwl_mvm_power_update_mac(mvm); 2942 2943 return false; 2944 } 2945 2946 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2947 struct ieee80211_vif *vif, 2948 struct ieee80211_bss_conf *link_conf) 2949 { 2950 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2951 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2952 int ret; 2953 2954 mutex_lock(&mvm->mutex); 2955 2956 /* 2957 * Re-calculate the tsf id, as the leader-follower relations depend on 2958 * the beacon interval, which was not known when the AP interface 2959 * was added. 2960 */ 2961 if (vif->type == NL80211_IFTYPE_AP) 2962 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2963 2964 /* For older devices need to send beacon template before adding mac 2965 * context. For the newer, the beacon is a resource that belongs to a 2966 * MAC, so need to send beacon template after adding the mac. 2967 */ 2968 if (mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2969 /* Add the mac context */ 2970 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2971 if (ret) 2972 goto out_unlock; 2973 2974 /* Send the beacon template */ 2975 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2976 if (ret) 2977 goto out_unlock; 2978 } else { 2979 /* Send the beacon template */ 2980 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2981 if (ret) 2982 goto out_unlock; 2983 2984 /* Add the mac context */ 2985 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2986 if (ret) 2987 goto out_unlock; 2988 } 2989 2990 /* Perform the binding */ 2991 ret = iwl_mvm_binding_add_vif(mvm, vif); 2992 if (ret) 2993 goto out_remove; 2994 2995 /* 2996 * This is not very nice, but the simplest: 2997 * For older FWs adding the mcast sta before the bcast station may 2998 * cause assert 0x2b00. 2999 * This is fixed in later FW so make the order of removal depend on 3000 * the TLV 3001 */ 3002 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3003 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3004 if (ret) 3005 goto out_unbind; 3006 /* 3007 * Send the bcast station. At this stage the TBTT and DTIM time 3008 * events are added and applied to the scheduler 3009 */ 3010 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3011 if (ret) { 3012 iwl_mvm_rm_mcast_sta(mvm, vif); 3013 goto out_unbind; 3014 } 3015 } else { 3016 /* 3017 * Send the bcast station. At this stage the TBTT and DTIM time 3018 * events are added and applied to the scheduler 3019 */ 3020 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3021 if (ret) 3022 goto out_unbind; 3023 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3024 if (ret) { 3025 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3026 goto out_unbind; 3027 } 3028 } 3029 3030 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3031 goto out_failed; 3032 3033 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3034 if (ret) 3035 goto out_failed; 3036 3037 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3038 if (vif->p2p && mvm->p2p_device_vif) 3039 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3040 3041 iwl_mvm_bt_coex_vif_change(mvm); 3042 3043 /* we don't support TDLS during DCM */ 3044 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3045 iwl_mvm_teardown_tdls_peers(mvm); 3046 3047 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3048 3049 goto out_unlock; 3050 3051 out_failed: 3052 iwl_mvm_power_update_mac(mvm); 3053 mvmvif->ap_ibss_active = false; 3054 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3055 iwl_mvm_rm_mcast_sta(mvm, vif); 3056 out_unbind: 3057 iwl_mvm_binding_remove_vif(mvm, vif); 3058 out_remove: 3059 iwl_mvm_mac_ctxt_remove(mvm, vif); 3060 out_unlock: 3061 mutex_unlock(&mvm->mutex); 3062 return ret; 3063 } 3064 3065 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3066 struct ieee80211_vif *vif, 3067 struct ieee80211_bss_conf *link_conf) 3068 { 3069 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3070 } 3071 3072 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3073 struct ieee80211_vif *vif) 3074 { 3075 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3076 } 3077 3078 /* Common part for MLD and non-MLD ops */ 3079 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3080 struct ieee80211_vif *vif) 3081 { 3082 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3083 3084 lockdep_assert_held(&mvm->mutex); 3085 3086 iwl_mvm_prepare_mac_removal(mvm, vif); 3087 3088 /* Handle AP stop while in CSA */ 3089 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3090 iwl_mvm_remove_time_event(mvm, mvmvif, 3091 &mvmvif->time_event_data); 3092 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3093 mvmvif->csa_countdown = false; 3094 } 3095 3096 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3097 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3098 mvm->csa_tx_block_bcn_timeout = 0; 3099 } 3100 3101 mvmvif->ap_ibss_active = false; 3102 mvm->ap_last_beacon_gp2 = 0; 3103 3104 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3105 iwl_mvm_vif_set_low_latency(mvmvif, false, 3106 LOW_LATENCY_VIF_TYPE); 3107 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3108 } 3109 3110 iwl_mvm_bt_coex_vif_change(mvm); 3111 } 3112 3113 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3114 struct ieee80211_vif *vif, 3115 struct ieee80211_bss_conf *link_conf) 3116 { 3117 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3118 3119 guard(mvm)(mvm); 3120 3121 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3122 3123 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3124 if (vif->p2p && mvm->p2p_device_vif) 3125 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3126 3127 iwl_mvm_update_quotas(mvm, false, NULL); 3128 3129 iwl_mvm_ftm_responder_clear(mvm, vif); 3130 3131 /* 3132 * This is not very nice, but the simplest: 3133 * For older FWs removing the mcast sta before the bcast station may 3134 * cause assert 0x2b00. 3135 * This is fixed in later FW (which will stop beaconing when removing 3136 * bcast station). 3137 * So make the order of removal depend on the TLV 3138 */ 3139 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3140 iwl_mvm_rm_mcast_sta(mvm, vif); 3141 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3142 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3143 iwl_mvm_rm_mcast_sta(mvm, vif); 3144 iwl_mvm_binding_remove_vif(mvm, vif); 3145 3146 iwl_mvm_power_update_mac(mvm); 3147 3148 iwl_mvm_mac_ctxt_remove(mvm, vif); 3149 } 3150 3151 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3152 struct ieee80211_vif *vif, 3153 struct ieee80211_bss_conf *link_conf) 3154 { 3155 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3156 } 3157 3158 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3159 struct ieee80211_vif *vif) 3160 { 3161 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3162 } 3163 3164 static void 3165 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3166 struct ieee80211_vif *vif, 3167 struct ieee80211_bss_conf *bss_conf, 3168 u64 changes) 3169 { 3170 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3171 3172 /* Changes will be applied when the AP/IBSS is started */ 3173 if (!mvmvif->ap_ibss_active) 3174 return; 3175 3176 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3177 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3178 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3179 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3180 3181 /* Need to send a new beacon template to the FW */ 3182 if (changes & BSS_CHANGED_BEACON && 3183 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3184 IWL_WARN(mvm, "Failed updating beacon data\n"); 3185 3186 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3187 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3188 3189 if (ret) 3190 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3191 ret); 3192 } 3193 3194 } 3195 3196 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3197 struct ieee80211_vif *vif, 3198 struct ieee80211_bss_conf *bss_conf, 3199 u64 changes) 3200 { 3201 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3202 3203 guard(mvm)(mvm); 3204 3205 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3206 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3207 3208 switch (vif->type) { 3209 case NL80211_IFTYPE_STATION: 3210 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3211 break; 3212 case NL80211_IFTYPE_AP: 3213 case NL80211_IFTYPE_ADHOC: 3214 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3215 break; 3216 case NL80211_IFTYPE_MONITOR: 3217 if (changes & BSS_CHANGED_MU_GROUPS) 3218 iwl_mvm_update_mu_groups(mvm, vif); 3219 break; 3220 default: 3221 /* shouldn't happen */ 3222 WARN_ON_ONCE(1); 3223 } 3224 3225 if (changes & BSS_CHANGED_TXPOWER) { 3226 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3227 bss_conf->txpower); 3228 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower); 3229 } 3230 } 3231 3232 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3233 struct ieee80211_scan_request *hw_req) 3234 { 3235 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3236 3237 if (hw_req->req.n_channels == 0 || 3238 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3239 return -EINVAL; 3240 3241 guard(mvm)(mvm); 3242 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3243 } 3244 3245 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3246 struct ieee80211_vif *vif) 3247 { 3248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3249 3250 guard(mvm)(mvm); 3251 3252 /* Due to a race condition, it's possible that mac80211 asks 3253 * us to stop a hw_scan when it's already stopped. This can 3254 * happen, for instance, if we stopped the scan ourselves, 3255 * called ieee80211_scan_completed() and the userspace called 3256 * cancel scan before ieee80211_scan_work() could run. 3257 * To handle that, simply return if the scan is not running. 3258 */ 3259 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3260 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3261 } 3262 3263 void 3264 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3265 struct ieee80211_sta *sta, u16 tids, 3266 int num_frames, 3267 enum ieee80211_frame_release_type reason, 3268 bool more_data) 3269 { 3270 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3271 3272 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3273 3274 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3275 tids, more_data, false); 3276 } 3277 3278 void 3279 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3280 struct ieee80211_sta *sta, u16 tids, 3281 int num_frames, 3282 enum ieee80211_frame_release_type reason, 3283 bool more_data) 3284 { 3285 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3286 3287 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3288 3289 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3290 tids, more_data, true); 3291 } 3292 3293 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3294 enum sta_notify_cmd cmd, 3295 struct ieee80211_sta *sta) 3296 { 3297 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3298 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3299 unsigned long txqs = 0, tids = 0; 3300 int tid; 3301 3302 /* 3303 * If we have TVQM then we get too high queue numbers - luckily 3304 * we really shouldn't get here with that because such hardware 3305 * should have firmware supporting buffer station offload. 3306 */ 3307 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3308 return; 3309 3310 spin_lock_bh(&mvmsta->lock); 3311 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3312 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3313 3314 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3315 continue; 3316 3317 __set_bit(tid_data->txq_id, &txqs); 3318 3319 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3320 continue; 3321 3322 __set_bit(tid, &tids); 3323 } 3324 3325 switch (cmd) { 3326 case STA_NOTIFY_SLEEP: 3327 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3328 ieee80211_sta_set_buffered(sta, tid, true); 3329 3330 if (txqs) 3331 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3332 /* 3333 * The fw updates the STA to be asleep. Tx packets on the Tx 3334 * queues to this station will not be transmitted. The fw will 3335 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3336 */ 3337 break; 3338 case STA_NOTIFY_AWAKE: 3339 if (WARN_ON(mvmsta->deflink.sta_id == IWL_INVALID_STA)) 3340 break; 3341 3342 if (txqs) 3343 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3344 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3345 break; 3346 default: 3347 break; 3348 } 3349 spin_unlock_bh(&mvmsta->lock); 3350 } 3351 3352 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3353 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3354 { 3355 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3356 } 3357 3358 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3359 { 3360 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3361 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3362 struct ieee80211_sta *sta; 3363 struct iwl_mvm_sta *mvmsta; 3364 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3365 3366 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3367 return; 3368 3369 rcu_read_lock(); 3370 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3371 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3372 rcu_read_unlock(); 3373 return; 3374 } 3375 3376 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3377 3378 if (!mvmsta->vif || 3379 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3380 rcu_read_unlock(); 3381 return; 3382 } 3383 3384 if (mvmsta->sleeping != sleeping) { 3385 mvmsta->sleeping = sleeping; 3386 __iwl_mvm_mac_sta_notify(mvm->hw, 3387 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3388 sta); 3389 ieee80211_sta_ps_transition(sta, sleeping); 3390 } 3391 3392 if (sleeping) { 3393 switch (notif->type) { 3394 case IWL_MVM_PM_EVENT_AWAKE: 3395 case IWL_MVM_PM_EVENT_ASLEEP: 3396 break; 3397 case IWL_MVM_PM_EVENT_UAPSD: 3398 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3399 break; 3400 case IWL_MVM_PM_EVENT_PS_POLL: 3401 ieee80211_sta_pspoll(sta); 3402 break; 3403 default: 3404 break; 3405 } 3406 } 3407 3408 rcu_read_unlock(); 3409 } 3410 3411 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3412 struct ieee80211_vif *vif, 3413 struct ieee80211_sta *sta) 3414 { 3415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3416 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3417 unsigned int link_id; 3418 3419 lockdep_assert_wiphy(mvm->hw->wiphy); 3420 3421 /* 3422 * This is called before mac80211 does RCU synchronisation, 3423 * so here we already invalidate our internal RCU-protected 3424 * station pointer. The rest of the code will thus no longer 3425 * be able to find the station this way, and we don't rely 3426 * on further RCU synchronisation after the sta_state() 3427 * callback deleted the station. 3428 * Since there's mvm->mutex here, no need to have RCU lock for 3429 * mvm_sta->link access. 3430 */ 3431 guard(mvm)(mvm); 3432 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3433 struct iwl_mvm_link_sta *link_sta; 3434 u32 sta_id; 3435 3436 if (!mvm_sta->link[link_id]) 3437 continue; 3438 3439 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3440 lockdep_is_held(&mvm->mutex)); 3441 sta_id = link_sta->sta_id; 3442 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3443 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3444 ERR_PTR(-ENOENT)); 3445 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3446 } 3447 } 3448 } 3449 3450 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3451 const u8 *bssid) 3452 { 3453 int i; 3454 3455 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3456 struct iwl_mvm_tcm_mac *mdata; 3457 3458 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3459 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3460 mdata->opened_rx_ba_sessions = false; 3461 } 3462 3463 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3464 return; 3465 3466 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3467 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3468 return; 3469 } 3470 3471 if (!vif->p2p && 3472 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3473 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3474 return; 3475 } 3476 3477 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3478 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3479 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3480 return; 3481 } 3482 } 3483 3484 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3485 } 3486 3487 static void 3488 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3489 struct ieee80211_vif *vif, u8 *peer_addr, 3490 enum nl80211_tdls_operation action) 3491 { 3492 struct iwl_fw_dbg_trigger_tlv *trig; 3493 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3494 3495 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3496 FW_DBG_TRIGGER_TDLS); 3497 if (!trig) 3498 return; 3499 3500 tdls_trig = (void *)trig->data; 3501 3502 if (!(tdls_trig->action_bitmap & BIT(action))) 3503 return; 3504 3505 if (tdls_trig->peer_mode && 3506 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3507 return; 3508 3509 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3510 "TDLS event occurred, peer %pM, action %d", 3511 peer_addr, action); 3512 } 3513 3514 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3515 bool tolerated; 3516 }; 3517 3518 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3519 struct cfg80211_bss *bss, 3520 void *_data) 3521 { 3522 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3523 const struct cfg80211_bss_ies *ies; 3524 const struct element *elem; 3525 3526 rcu_read_lock(); 3527 ies = rcu_dereference(bss->ies); 3528 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3529 ies->len); 3530 3531 if (!elem || elem->datalen < 10 || 3532 !(elem->data[10] & 3533 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3534 data->tolerated = false; 3535 } 3536 rcu_read_unlock(); 3537 } 3538 3539 static void 3540 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3541 struct ieee80211_vif *vif, 3542 unsigned int link_id, 3543 struct ieee80211_bss_conf *link_conf) 3544 { 3545 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3546 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3547 .tolerated = true, 3548 }; 3549 3550 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3551 !mvmvif->link[link_id])) 3552 return; 3553 3554 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3555 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3556 return; 3557 } 3558 3559 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3560 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3561 &iter_data); 3562 3563 /* 3564 * If there is at least one AP on radar channel that cannot 3565 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3566 */ 3567 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3568 } 3569 3570 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3571 struct ieee80211_vif *vif) 3572 { 3573 struct ieee80211_supported_band *sband; 3574 const struct ieee80211_sta_he_cap *he_cap; 3575 3576 if (vif->type != NL80211_IFTYPE_STATION) 3577 return; 3578 3579 if (!mvm->cca_40mhz_workaround) 3580 return; 3581 3582 /* decrement and check that we reached zero */ 3583 mvm->cca_40mhz_workaround--; 3584 if (mvm->cca_40mhz_workaround) 3585 return; 3586 3587 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3588 3589 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3590 3591 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3592 3593 if (he_cap) { 3594 /* we know that ours is writable */ 3595 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3596 3597 he->he_cap_elem.phy_cap_info[0] |= 3598 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3599 } 3600 } 3601 3602 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3603 struct ieee80211_vif *vif, 3604 struct iwl_mvm_sta *mvm_sta) 3605 { 3606 #if IS_ENABLED(CONFIG_IWLMEI) 3607 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3608 struct iwl_mei_conn_info conn_info = { 3609 .ssid_len = vif->cfg.ssid_len, 3610 }; 3611 3612 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3613 return; 3614 3615 if (!mvm->mei_registered) 3616 return; 3617 3618 /* FIXME: MEI needs to be updated for MLO */ 3619 if (!vif->bss_conf.chanreq.oper.chan) 3620 return; 3621 3622 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3623 3624 switch (mvm_sta->pairwise_cipher) { 3625 case WLAN_CIPHER_SUITE_TKIP: 3626 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3627 break; 3628 case WLAN_CIPHER_SUITE_CCMP: 3629 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3630 break; 3631 case WLAN_CIPHER_SUITE_GCMP: 3632 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3633 break; 3634 case WLAN_CIPHER_SUITE_GCMP_256: 3635 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3636 break; 3637 case 0: 3638 /* open profile */ 3639 break; 3640 default: 3641 /* cipher not supported, don't send anything to iwlmei */ 3642 return; 3643 } 3644 3645 switch (mvmvif->rekey_data.akm) { 3646 case WLAN_AKM_SUITE_SAE & 0xff: 3647 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3648 break; 3649 case WLAN_AKM_SUITE_PSK & 0xff: 3650 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3651 break; 3652 case WLAN_AKM_SUITE_8021X & 0xff: 3653 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3654 break; 3655 case 0: 3656 /* open profile */ 3657 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3658 break; 3659 default: 3660 /* auth method / AKM not supported */ 3661 /* TODO: All the FT vesions of these? */ 3662 return; 3663 } 3664 3665 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3666 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3667 3668 /* TODO: add support for collocated AP data */ 3669 iwl_mei_host_associated(&conn_info, NULL); 3670 #endif 3671 } 3672 3673 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3674 struct ieee80211_vif *vif, 3675 bool force_assoc_off) 3676 { 3677 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3678 } 3679 3680 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3681 struct ieee80211_vif *vif, 3682 struct ieee80211_sta *sta, 3683 enum ieee80211_sta_state old_state, 3684 enum ieee80211_sta_state new_state) 3685 { 3686 static const struct iwl_mvm_sta_state_ops callbacks = { 3687 .add_sta = iwl_mvm_add_sta, 3688 .update_sta = iwl_mvm_update_sta, 3689 .rm_sta = iwl_mvm_rm_sta, 3690 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3691 }; 3692 3693 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3694 &callbacks); 3695 } 3696 3697 /* FIXME: temporary making two assumptions in all sta handling functions: 3698 * (1) when setting sta state, the link exists and protected 3699 * (2) if a link is valid in sta then it's valid in vif (can 3700 * use same index in the link array) 3701 */ 3702 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3703 struct ieee80211_vif *vif, 3704 struct ieee80211_sta *sta) 3705 { 3706 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3707 unsigned int link_id; 3708 3709 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3710 struct ieee80211_bss_conf *conf = 3711 link_conf_dereference_check(vif, link_id); 3712 struct ieee80211_link_sta *link_sta = 3713 link_sta_dereference_check(sta, link_id); 3714 3715 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3716 continue; 3717 3718 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3719 mvmvif->link[link_id]->phy_ctxt->channel->band); 3720 } 3721 } 3722 3723 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3724 struct ieee80211_vif *vif, 3725 struct ieee80211_sta *sta) 3726 { 3727 struct ieee80211_link_sta *link_sta; 3728 unsigned int link_id; 3729 3730 /* Beacon interval check - firmware will crash if the beacon 3731 * interval is less than 16. We can't avoid connecting at all, 3732 * so refuse the station state change, this will cause mac80211 3733 * to abandon attempts to connect to this AP, and eventually 3734 * wpa_s will blocklist the AP... 3735 */ 3736 3737 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3738 struct ieee80211_bss_conf *link_conf = 3739 link_conf_dereference_protected(vif, link_id); 3740 3741 if (!link_conf) 3742 continue; 3743 3744 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3745 IWL_ERR(mvm, 3746 "Beacon interval %d for AP %pM is too small\n", 3747 link_conf->beacon_int, link_sta->addr); 3748 return false; 3749 } 3750 3751 link_conf->he_support = link_sta->he_cap.has_he; 3752 } 3753 3754 return true; 3755 } 3756 3757 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3758 struct ieee80211_vif *vif, 3759 struct ieee80211_sta *sta, 3760 bool is_sta) 3761 { 3762 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3763 struct ieee80211_link_sta *link_sta; 3764 unsigned int link_id; 3765 3766 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3767 struct ieee80211_bss_conf *link_conf = 3768 link_conf_dereference_protected(vif, link_id); 3769 3770 if (!link_conf || !mvmvif->link[link_id]) 3771 continue; 3772 3773 link_conf->he_support = link_sta->he_cap.has_he; 3774 3775 if (is_sta) { 3776 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3777 if (link_sta->he_cap.has_he) 3778 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3779 link_id, 3780 link_conf); 3781 } 3782 } 3783 } 3784 3785 static int 3786 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3787 struct ieee80211_vif *vif, 3788 struct ieee80211_sta *sta, 3789 const struct iwl_mvm_sta_state_ops *callbacks) 3790 { 3791 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3792 struct ieee80211_link_sta *link_sta; 3793 unsigned int i; 3794 int ret; 3795 3796 lockdep_assert_held(&mvm->mutex); 3797 3798 if (vif->type == NL80211_IFTYPE_STATION && 3799 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3800 return -EINVAL; 3801 3802 if (sta->tdls && 3803 (vif->p2p || 3804 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_TDLS_STA_COUNT || 3805 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3806 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3807 return -EBUSY; 3808 } 3809 3810 ret = callbacks->add_sta(mvm, vif, sta); 3811 if (sta->tdls && ret == 0) { 3812 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3813 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3814 NL80211_TDLS_SETUP); 3815 } 3816 3817 if (ret) 3818 return ret; 3819 3820 for_each_sta_active_link(vif, sta, link_sta, i) 3821 link_sta->agg.max_rc_amsdu_len = 1; 3822 3823 ieee80211_sta_recalc_aggregates(sta); 3824 3825 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3826 mvmvif->ap_sta = sta; 3827 3828 /* 3829 * Initialize the rates here already - this really tells 3830 * the firmware only what the supported legacy rates are 3831 * (may be) since it's initialized already from what the 3832 * AP advertised in the beacon/probe response. This will 3833 * allow the firmware to send auth/assoc frames with one 3834 * of the supported rates already, rather than having to 3835 * use a mandatory rate. 3836 * If we're the AP, we'll just assume mandatory rates at 3837 * this point, but we know nothing about the STA anyway. 3838 */ 3839 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3840 3841 return 0; 3842 } 3843 3844 static int 3845 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3846 struct iwl_mvm *mvm, 3847 struct ieee80211_vif *vif, 3848 struct ieee80211_sta *sta, 3849 const struct iwl_mvm_sta_state_ops *callbacks) 3850 { 3851 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3852 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3853 struct ieee80211_link_sta *link_sta; 3854 unsigned int link_id; 3855 3856 lockdep_assert_held(&mvm->mutex); 3857 3858 if (vif->type == NL80211_IFTYPE_AP) { 3859 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3860 mvmvif->ap_assoc_sta_count++; 3861 callbacks->mac_ctxt_changed(mvm, vif, false); 3862 3863 /* since the below is not for MLD API, it's ok to use 3864 * the default bss_conf 3865 */ 3866 if (!mvm->mld_api_is_used && 3867 (vif->bss_conf.he_support && 3868 !iwlwifi_mod_params.disable_11ax)) 3869 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3870 } else if (vif->type == NL80211_IFTYPE_STATION) { 3871 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3872 3873 callbacks->mac_ctxt_changed(mvm, vif, false); 3874 3875 if (!mvm->mld_api_is_used) 3876 goto out; 3877 3878 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3879 struct ieee80211_bss_conf *link_conf = 3880 link_conf_dereference_protected(vif, link_id); 3881 3882 if (WARN_ON(!link_conf)) 3883 return -EINVAL; 3884 if (!mvmvif->link[link_id]) 3885 continue; 3886 3887 iwl_mvm_link_changed(mvm, vif, link_conf, 3888 LINK_CONTEXT_MODIFY_ALL & 3889 ~LINK_CONTEXT_MODIFY_ACTIVE, 3890 true); 3891 } 3892 } 3893 3894 out: 3895 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3896 3897 return callbacks->update_sta(mvm, vif, sta); 3898 } 3899 3900 static int 3901 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3902 struct ieee80211_vif *vif, 3903 struct ieee80211_sta *sta, 3904 const struct iwl_mvm_sta_state_ops *callbacks) 3905 { 3906 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3907 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3908 3909 lockdep_assert_held(&mvm->mutex); 3910 3911 /* we don't support TDLS during DCM */ 3912 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3913 iwl_mvm_teardown_tdls_peers(mvm); 3914 3915 if (sta->tdls) { 3916 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3917 NL80211_TDLS_ENABLE_LINK); 3918 } else { 3919 /* enable beacon filtering */ 3920 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 3921 3922 mvmvif->authorized = 1; 3923 3924 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3925 mvmvif->link_selection_res = vif->active_links; 3926 mvmvif->link_selection_primary = 3927 vif->active_links ? __ffs(vif->active_links) : 0; 3928 } 3929 3930 callbacks->mac_ctxt_changed(mvm, vif, false); 3931 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3932 } 3933 3934 mvm_sta->authorized = true; 3935 3936 /* MFP is set by default before the station is authorized. 3937 * Clear it here in case it's not used. 3938 */ 3939 if (!sta->mfp) { 3940 int ret = callbacks->update_sta(mvm, vif, sta); 3941 3942 if (ret) 3943 return ret; 3944 } 3945 3946 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3947 3948 return 0; 3949 } 3950 3951 static int 3952 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3953 struct ieee80211_vif *vif, 3954 struct ieee80211_sta *sta, 3955 const struct iwl_mvm_sta_state_ops *callbacks) 3956 { 3957 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3958 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3959 3960 lockdep_assert_held(&mvm->mutex); 3961 3962 mvmsta->authorized = false; 3963 3964 /* once we move into assoc state, need to update rate scale to 3965 * disable using wide bandwidth 3966 */ 3967 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3968 3969 if (!sta->tdls) { 3970 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3971 * yet to avoid sending high prio again for a little 3972 * time. 3973 */ 3974 mvmvif->authorized = 0; 3975 mvmvif->link_selection_res = 0; 3976 3977 /* disable beacon filtering */ 3978 iwl_mvm_disable_beacon_filter(mvm, vif); 3979 } 3980 3981 return 0; 3982 } 3983 3984 void iwl_mvm_smps_workaround(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3985 bool update) 3986 { 3987 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3988 3989 if (!iwl_mvm_has_rlc_offload(mvm) || 3990 iwl_fw_lookup_cmd_ver(mvm->fw, MAC_PM_POWER_TABLE, 0) >= 2) 3991 return; 3992 3993 mvmvif->ps_disabled = !vif->cfg.ps; 3994 3995 if (update) 3996 iwl_mvm_power_update_mac(mvm); 3997 } 3998 3999 /* Common part for MLD and non-MLD modes */ 4000 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4001 struct ieee80211_vif *vif, 4002 struct ieee80211_sta *sta, 4003 enum ieee80211_sta_state old_state, 4004 enum ieee80211_sta_state new_state, 4005 const struct iwl_mvm_sta_state_ops *callbacks) 4006 { 4007 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4008 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4009 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4010 struct ieee80211_link_sta *link_sta; 4011 unsigned int link_id; 4012 int ret; 4013 4014 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4015 sta->addr, old_state, new_state); 4016 4017 /* 4018 * If we are in a STA removal flow and in DQA mode: 4019 * 4020 * This is after the sync_rcu part, so the queues have already been 4021 * flushed. No more TXs on their way in mac80211's path, and no more in 4022 * the queues. 4023 * Also, we won't be getting any new TX frames for this station. 4024 * What we might have are deferred TX frames that need to be taken care 4025 * of. 4026 * 4027 * Drop any still-queued deferred-frame before removing the STA, and 4028 * make sure the worker is no longer handling frames for this STA. 4029 */ 4030 if (old_state == IEEE80211_STA_NONE && 4031 new_state == IEEE80211_STA_NOTEXIST) { 4032 flush_work(&mvm->add_stream_wk); 4033 4034 /* 4035 * No need to make sure deferred TX indication is off since the 4036 * worker will already remove it if it was on 4037 */ 4038 4039 /* 4040 * Additionally, reset the 40 MHz capability if we disconnected 4041 * from the AP now. 4042 */ 4043 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4044 4045 /* Also free dup data just in case any assertions below fail */ 4046 kfree(mvm_sta->dup_data); 4047 } 4048 4049 mutex_lock(&mvm->mutex); 4050 4051 /* this would be a mac80211 bug ... but don't crash, unless we had a 4052 * firmware crash while we were activating a link, in which case it is 4053 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4054 * recovery flow since we spit tons of error messages anyway. 4055 */ 4056 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4057 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4058 !mvmvif->link[link_id]->phy_ctxt)) { 4059 mutex_unlock(&mvm->mutex); 4060 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4061 &mvm->status) ? 0 : -EINVAL; 4062 } 4063 } 4064 4065 /* track whether or not the station is associated */ 4066 mvm_sta->sta_state = new_state; 4067 4068 if (old_state == IEEE80211_STA_NOTEXIST && 4069 new_state == IEEE80211_STA_NONE) { 4070 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4071 callbacks); 4072 if (ret < 0) 4073 goto out_unlock; 4074 } else if (old_state == IEEE80211_STA_NONE && 4075 new_state == IEEE80211_STA_AUTH) { 4076 /* 4077 * EBS may be disabled due to previous failures reported by FW. 4078 * Reset EBS status here assuming environment has been changed. 4079 */ 4080 mvm->last_ebs_successful = true; 4081 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4082 ret = 0; 4083 } else if (old_state == IEEE80211_STA_AUTH && 4084 new_state == IEEE80211_STA_ASSOC) { 4085 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4086 callbacks); 4087 } else if (old_state == IEEE80211_STA_ASSOC && 4088 new_state == IEEE80211_STA_AUTHORIZED) { 4089 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4090 callbacks); 4091 iwl_mvm_smps_workaround(mvm, vif, true); 4092 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4093 new_state == IEEE80211_STA_ASSOC) { 4094 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4095 callbacks); 4096 } else if (old_state == IEEE80211_STA_ASSOC && 4097 new_state == IEEE80211_STA_AUTH) { 4098 if (vif->type == NL80211_IFTYPE_AP) { 4099 mvmvif->ap_assoc_sta_count--; 4100 callbacks->mac_ctxt_changed(mvm, vif, false); 4101 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4102 iwl_mvm_stop_session_protection(mvm, vif); 4103 ret = 0; 4104 } else if (old_state == IEEE80211_STA_AUTH && 4105 new_state == IEEE80211_STA_NONE) { 4106 ret = 0; 4107 } else if (old_state == IEEE80211_STA_NONE && 4108 new_state == IEEE80211_STA_NOTEXIST) { 4109 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4110 iwl_mvm_stop_session_protection(mvm, vif); 4111 mvmvif->ap_sta = NULL; 4112 } 4113 ret = callbacks->rm_sta(mvm, vif, sta); 4114 if (sta->tdls) { 4115 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4116 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4117 NL80211_TDLS_DISABLE_LINK); 4118 } 4119 4120 if (unlikely(ret && 4121 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4122 &mvm->status))) 4123 ret = 0; 4124 } else { 4125 ret = -EIO; 4126 } 4127 out_unlock: 4128 mutex_unlock(&mvm->mutex); 4129 4130 if (sta->tdls && ret == 0) { 4131 if (old_state == IEEE80211_STA_NOTEXIST && 4132 new_state == IEEE80211_STA_NONE) 4133 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4134 else if (old_state == IEEE80211_STA_NONE && 4135 new_state == IEEE80211_STA_NOTEXIST) 4136 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4137 } 4138 4139 return ret; 4140 } 4141 4142 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, int radio_idx, 4143 u32 value) 4144 { 4145 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4146 4147 mvm->rts_threshold = value; 4148 4149 return 0; 4150 } 4151 4152 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4153 struct ieee80211_link_sta *link_sta, u32 changed) 4154 { 4155 struct ieee80211_sta *sta = link_sta->sta; 4156 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4157 4158 if (changed & (IEEE80211_RC_BW_CHANGED | 4159 IEEE80211_RC_SUPP_RATES_CHANGED | 4160 IEEE80211_RC_NSS_CHANGED)) 4161 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4162 4163 if (vif->type == NL80211_IFTYPE_STATION && 4164 changed & IEEE80211_RC_NSS_CHANGED) 4165 iwl_mvm_sf_update(mvm, vif, false); 4166 } 4167 4168 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4169 struct ieee80211_vif *vif, 4170 unsigned int link_id, u16 ac, 4171 const struct ieee80211_tx_queue_params *params) 4172 { 4173 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4174 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4175 4176 mvmvif->deflink.queue_params[ac] = *params; 4177 4178 /* 4179 * No need to update right away, we'll get BSS_CHANGED_QOS 4180 * The exception is P2P_DEVICE interface which needs immediate update. 4181 */ 4182 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4183 guard(mvm)(mvm); 4184 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4185 } 4186 return 0; 4187 } 4188 4189 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4190 struct ieee80211_vif *vif, 4191 struct ieee80211_prep_tx_info *info) 4192 { 4193 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4194 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4195 4196 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4197 return; 4198 4199 guard(mvm)(mvm); 4200 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4201 } 4202 4203 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4204 struct ieee80211_vif *vif, 4205 struct ieee80211_prep_tx_info *info) 4206 { 4207 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4208 4209 /* for successful cases (auth/assoc), don't cancel session protection */ 4210 if (info->success) 4211 return; 4212 4213 guard(mvm)(mvm); 4214 iwl_mvm_stop_session_protection(mvm, vif); 4215 } 4216 4217 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4218 struct ieee80211_vif *vif, 4219 struct cfg80211_sched_scan_request *req, 4220 struct ieee80211_scan_ies *ies) 4221 { 4222 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4223 4224 guard(mvm)(mvm); 4225 4226 if (!vif->cfg.idle) 4227 return -EBUSY; 4228 4229 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4230 } 4231 4232 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4233 struct ieee80211_vif *vif) 4234 { 4235 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4236 int ret; 4237 4238 mutex_lock(&mvm->mutex); 4239 4240 /* Due to a race condition, it's possible that mac80211 asks 4241 * us to stop a sched_scan when it's already stopped. This 4242 * can happen, for instance, if we stopped the scan ourselves, 4243 * called ieee80211_sched_scan_stopped() and the userspace called 4244 * stop sched scan before ieee80211_sched_scan_stopped_work() 4245 * could run. To handle this, simply return if the scan is 4246 * not running. 4247 */ 4248 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4249 mutex_unlock(&mvm->mutex); 4250 return 0; 4251 } 4252 4253 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4254 mutex_unlock(&mvm->mutex); 4255 iwl_mvm_wait_for_async_handlers(mvm); 4256 4257 return ret; 4258 } 4259 4260 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4261 enum set_key_cmd cmd, 4262 struct ieee80211_vif *vif, 4263 struct ieee80211_sta *sta, 4264 struct ieee80211_key_conf *key) 4265 { 4266 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4267 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4268 struct iwl_mvm_sta *mvmsta = NULL; 4269 struct iwl_mvm_key_pn *ptk_pn = NULL; 4270 int keyidx = key->keyidx; 4271 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4272 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4273 int ret, i; 4274 u8 key_offset; 4275 4276 if (sta) 4277 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4278 4279 switch (key->cipher) { 4280 case WLAN_CIPHER_SUITE_TKIP: 4281 if (!mvm->trans->mac_cfg->gen2) { 4282 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4283 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4284 } else if (vif->type == NL80211_IFTYPE_STATION) { 4285 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4286 } else { 4287 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4288 return -EOPNOTSUPP; 4289 } 4290 break; 4291 case WLAN_CIPHER_SUITE_CCMP: 4292 case WLAN_CIPHER_SUITE_GCMP: 4293 case WLAN_CIPHER_SUITE_GCMP_256: 4294 if (!iwl_mvm_has_new_tx_api(mvm)) 4295 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4296 break; 4297 case WLAN_CIPHER_SUITE_AES_CMAC: 4298 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4299 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4300 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4301 break; 4302 case WLAN_CIPHER_SUITE_WEP40: 4303 case WLAN_CIPHER_SUITE_WEP104: 4304 if (vif->type == NL80211_IFTYPE_STATION) 4305 break; 4306 if (iwl_mvm_has_new_tx_api(mvm)) 4307 return -EOPNOTSUPP; 4308 /* support HW crypto on TX */ 4309 return 0; 4310 default: 4311 return -EOPNOTSUPP; 4312 } 4313 4314 switch (cmd) { 4315 case SET_KEY: 4316 if (vif->type == NL80211_IFTYPE_STATION && 4317 (keyidx == 6 || keyidx == 7)) 4318 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4319 key); 4320 4321 if ((vif->type == NL80211_IFTYPE_ADHOC || 4322 vif->type == NL80211_IFTYPE_AP) && !sta) { 4323 /* 4324 * GTK on AP interface is a TX-only key, return 0; 4325 * on IBSS they're per-station and because we're lazy 4326 * we don't support them for RX, so do the same. 4327 * CMAC/GMAC in AP/IBSS modes must be done in software 4328 * on older NICs. 4329 * 4330 * Except, of course, beacon protection - it must be 4331 * offloaded since we just set a beacon template, and 4332 * then we must also offload the IGTK (not just BIGTK) 4333 * for firmware reasons. 4334 * 4335 * So just check for beacon protection - if we don't 4336 * have it we cannot get here with keyidx >= 6, and 4337 * if we do have it we need to send the key to FW in 4338 * all cases (CMAC/GMAC). 4339 */ 4340 if (!wiphy_ext_feature_isset(hw->wiphy, 4341 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4342 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4343 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4344 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4345 ret = -EOPNOTSUPP; 4346 break; 4347 } 4348 4349 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4350 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4351 !iwl_mvm_has_new_tx_api(mvm)) { 4352 key->hw_key_idx = STA_KEY_IDX_INVALID; 4353 ret = 0; 4354 break; 4355 } 4356 4357 if (!mvmvif->ap_ibss_active) { 4358 for (i = 0; 4359 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4360 i++) { 4361 if (!mvmvif->ap_early_keys[i]) { 4362 mvmvif->ap_early_keys[i] = key; 4363 break; 4364 } 4365 } 4366 4367 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4368 ret = -ENOSPC; 4369 else 4370 ret = 0; 4371 4372 break; 4373 } 4374 } 4375 4376 /* During FW restart, in order to restore the state as it was, 4377 * don't try to reprogram keys we previously failed for. 4378 */ 4379 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4380 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4381 IWL_DEBUG_MAC80211(mvm, 4382 "skip invalid idx key programming during restart\n"); 4383 ret = 0; 4384 break; 4385 } 4386 4387 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4388 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4389 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4390 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4391 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4392 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4393 struct ieee80211_key_seq seq; 4394 int tid, q; 4395 4396 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4397 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4398 mvm->trans->info.num_rxqs), 4399 GFP_KERNEL); 4400 if (!ptk_pn) { 4401 ret = -ENOMEM; 4402 break; 4403 } 4404 4405 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4406 ieee80211_get_key_rx_seq(key, tid, &seq); 4407 for (q = 0; q < mvm->trans->info.num_rxqs; q++) 4408 memcpy(ptk_pn->q[q].pn[tid], 4409 seq.ccmp.pn, 4410 IEEE80211_CCMP_PN_LEN); 4411 } 4412 4413 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4414 } 4415 4416 /* in HW restart reuse the index, otherwise request a new one */ 4417 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4418 key_offset = key->hw_key_idx; 4419 else 4420 key_offset = STA_KEY_IDX_INVALID; 4421 4422 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4423 mvmsta->pairwise_cipher = key->cipher; 4424 4425 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4426 sta ? sta->addr : NULL, key->keyidx); 4427 4428 if (sec_key_ver) 4429 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4430 else 4431 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4432 4433 if (ret) { 4434 IWL_WARN(mvm, "set key failed\n"); 4435 key->hw_key_idx = STA_KEY_IDX_INVALID; 4436 if (ptk_pn) { 4437 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4438 kfree(ptk_pn); 4439 } 4440 /* 4441 * can't add key for RX, but we don't need it 4442 * in the device for TX so still return 0, 4443 * unless we have new TX API where we cannot 4444 * put key material into the TX_CMD 4445 */ 4446 if (iwl_mvm_has_new_tx_api(mvm)) 4447 ret = -EOPNOTSUPP; 4448 else 4449 ret = 0; 4450 } 4451 4452 break; 4453 case DISABLE_KEY: 4454 if (vif->type == NL80211_IFTYPE_STATION && 4455 (keyidx == 6 || keyidx == 7)) 4456 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4457 NULL); 4458 4459 ret = -ENOENT; 4460 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4461 if (mvmvif->ap_early_keys[i] == key) { 4462 mvmvif->ap_early_keys[i] = NULL; 4463 ret = 0; 4464 } 4465 } 4466 4467 /* found in pending list - don't do anything else */ 4468 if (ret == 0) 4469 break; 4470 4471 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4472 ret = 0; 4473 break; 4474 } 4475 4476 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4477 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4478 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4479 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4480 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4481 ptk_pn = rcu_dereference_protected( 4482 mvmsta->ptk_pn[keyidx], 4483 lockdep_is_held(&mvm->mutex)); 4484 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4485 if (ptk_pn) 4486 kfree_rcu(ptk_pn, rcu_head); 4487 } 4488 4489 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4490 if (sec_key_ver) 4491 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4492 else 4493 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4494 break; 4495 default: 4496 ret = -EINVAL; 4497 } 4498 4499 return ret; 4500 } 4501 4502 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4503 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4504 struct ieee80211_key_conf *key) 4505 { 4506 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4507 4508 /* When resuming from wowlan, FW already knows about the newest keys */ 4509 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) 4510 return 0; 4511 4512 guard(mvm)(mvm); 4513 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4514 } 4515 4516 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4517 struct ieee80211_vif *vif, 4518 struct ieee80211_key_conf *keyconf, 4519 struct ieee80211_sta *sta, 4520 u32 iv32, u16 *phase1key) 4521 { 4522 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4523 4524 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4525 return; 4526 4527 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4528 } 4529 4530 4531 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4532 struct iwl_rx_packet *pkt, void *data) 4533 { 4534 struct iwl_mvm *mvm = 4535 container_of(notif_wait, struct iwl_mvm, notif_wait); 4536 struct iwl_hs20_roc_res *resp; 4537 int resp_len = iwl_rx_packet_payload_len(pkt); 4538 struct iwl_mvm_time_event_data *te_data = data; 4539 4540 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4541 return true; 4542 4543 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4544 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4545 return true; 4546 } 4547 4548 resp = (void *)pkt->data; 4549 4550 IWL_DEBUG_TE(mvm, 4551 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4552 resp->status, resp->event_unique_id); 4553 4554 te_data->uid = le32_to_cpu(resp->event_unique_id); 4555 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4556 te_data->uid); 4557 4558 spin_lock_bh(&mvm->time_event_lock); 4559 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4560 spin_unlock_bh(&mvm->time_event_lock); 4561 4562 return true; 4563 } 4564 4565 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4566 struct ieee80211_channel *channel, 4567 struct ieee80211_vif *vif, 4568 int duration) 4569 { 4570 int res; 4571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4572 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4573 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4574 struct iwl_notification_wait wait_time_event; 4575 u32 req_dur, delay; 4576 struct iwl_hs20_roc_req aux_roc_req = { 4577 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4578 .id_and_color = 4579 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4580 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4581 }; 4582 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4583 &aux_roc_req.channel_info); 4584 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4585 4586 /* Set the channel info data */ 4587 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4588 iwl_mvm_phy_band_from_nl80211(channel->band), 4589 IWL_PHY_CHANNEL_MODE20, 4590 0); 4591 4592 /* Set the time and duration */ 4593 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4594 4595 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4596 tail->duration = cpu_to_le32(req_dur); 4597 tail->apply_time_max_delay = cpu_to_le32(delay); 4598 4599 IWL_DEBUG_TE(mvm, 4600 "ROC: Requesting to remain on channel %u for %ums\n", 4601 channel->hw_value, req_dur); 4602 IWL_DEBUG_TE(mvm, 4603 "\t(requested = %ums, max_delay = %ums)\n", 4604 duration, delay); 4605 4606 /* Set the node address */ 4607 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4608 4609 lockdep_assert_held(&mvm->mutex); 4610 4611 spin_lock_bh(&mvm->time_event_lock); 4612 4613 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4614 spin_unlock_bh(&mvm->time_event_lock); 4615 return -EIO; 4616 } 4617 4618 te_data->vif = vif; 4619 te_data->duration = duration; 4620 te_data->id = HOT_SPOT_CMD; 4621 4622 spin_unlock_bh(&mvm->time_event_lock); 4623 4624 /* 4625 * Use a notification wait, which really just processes the 4626 * command response and doesn't wait for anything, in order 4627 * to be able to process the response and get the UID inside 4628 * the RX path. Using CMD_WANT_SKB doesn't work because it 4629 * stores the buffer and then wakes up this thread, by which 4630 * time another notification (that the time event started) 4631 * might already be processed unsuccessfully. 4632 */ 4633 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4634 time_event_response, 4635 ARRAY_SIZE(time_event_response), 4636 iwl_mvm_rx_aux_roc, te_data); 4637 4638 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4639 &aux_roc_req); 4640 4641 if (res) { 4642 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4643 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4644 goto out_clear_te; 4645 } 4646 4647 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4648 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4649 /* should never fail */ 4650 WARN_ON_ONCE(res); 4651 4652 if (res) { 4653 out_clear_te: 4654 spin_lock_bh(&mvm->time_event_lock); 4655 iwl_mvm_te_clear_data(mvm, te_data); 4656 spin_unlock_bh(&mvm->time_event_lock); 4657 } 4658 4659 return res; 4660 } 4661 4662 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4663 { 4664 int ret = 0; 4665 4666 lockdep_assert_held(&mvm->mutex); 4667 4668 if (!fw_has_capa(&mvm->fw->ucode_capa, 4669 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4670 IWL_ERR(mvm, "hotspot not supported\n"); 4671 return -EINVAL; 4672 } 4673 4674 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4675 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4676 WARN(ret, "Failed to allocate aux station"); 4677 } 4678 4679 return ret; 4680 } 4681 4682 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4683 { 4684 int ret; 4685 4686 lockdep_assert_held(&mvm->mutex); 4687 4688 ret = iwl_mvm_binding_add_vif(mvm, vif); 4689 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4690 return ret; 4691 4692 /* The station and queue allocation must be done only after the binding 4693 * is done, as otherwise the FW might incorrectly configure its state. 4694 */ 4695 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4696 } 4697 4698 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4699 struct ieee80211_vif *vif, 4700 struct ieee80211_channel *channel, 4701 int duration, 4702 enum ieee80211_roc_type type) 4703 { 4704 static const struct iwl_mvm_roc_ops ops = { 4705 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4706 .link = iwl_mvm_roc_link, 4707 }; 4708 4709 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4710 } 4711 4712 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4713 struct ieee80211_channel *channel, 4714 struct ieee80211_vif *vif, 4715 int duration) 4716 { 4717 int ret; 4718 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4719 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4720 IWL_FW_CMD_VER_UNKNOWN); 4721 4722 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4723 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4724 } else if (fw_ver >= 3) { 4725 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4726 ROC_ACTIVITY_HOTSPOT); 4727 } else { 4728 ret = -EOPNOTSUPP; 4729 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4730 } 4731 4732 return ret; 4733 } 4734 4735 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4736 struct ieee80211_channel *channel, 4737 struct ieee80211_vif *vif, 4738 int duration, 4739 enum ieee80211_roc_type type) 4740 { 4741 enum iwl_roc_activity activity; 4742 int ret; 4743 4744 lockdep_assert_held(&mvm->mutex); 4745 4746 switch (type) { 4747 case IEEE80211_ROC_TYPE_NORMAL: 4748 activity = ROC_ACTIVITY_P2P_DISC; 4749 break; 4750 case IEEE80211_ROC_TYPE_MGMT_TX: 4751 activity = ROC_ACTIVITY_P2P_NEG; 4752 break; 4753 default: 4754 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4755 return -EINVAL; 4756 } 4757 4758 ret = iwl_mvm_mld_add_aux_sta(mvm, 4759 iwl_mvm_get_lmac_id(mvm, channel->band)); 4760 if (ret) 4761 return ret; 4762 4763 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4764 } 4765 4766 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4767 struct ieee80211_vif *vif, 4768 struct ieee80211_channel *channel) 4769 { 4770 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4771 struct cfg80211_chan_def chandef; 4772 int i; 4773 4774 lockdep_assert_held(&mvm->mutex); 4775 4776 if (mvmvif->deflink.phy_ctxt && 4777 channel == mvmvif->deflink.phy_ctxt->channel) 4778 return 0; 4779 4780 /* Try using a PHY context that is already in use */ 4781 for (i = 0; i < NUM_PHY_CTX; i++) { 4782 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4783 4784 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4785 continue; 4786 4787 if (channel == phy_ctxt->channel) { 4788 if (mvmvif->deflink.phy_ctxt) 4789 iwl_mvm_phy_ctxt_unref(mvm, 4790 mvmvif->deflink.phy_ctxt); 4791 4792 mvmvif->deflink.phy_ctxt = phy_ctxt; 4793 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4794 return 0; 4795 } 4796 } 4797 4798 /* We already have a phy_ctxt, but it's not on the right channel */ 4799 if (mvmvif->deflink.phy_ctxt) 4800 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4801 4802 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4803 if (!mvmvif->deflink.phy_ctxt) 4804 return -ENOSPC; 4805 4806 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4807 4808 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4809 &chandef, NULL, 1, 1); 4810 } 4811 4812 /* Execute the common part for MLD and non-MLD modes */ 4813 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4814 struct ieee80211_channel *channel, int duration, 4815 enum ieee80211_roc_type type, 4816 const struct iwl_mvm_roc_ops *ops) 4817 { 4818 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4819 u32 lmac_id; 4820 int ret; 4821 4822 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4823 duration, type); 4824 4825 /* 4826 * Flush the done work, just in case it's still pending, so that 4827 * the work it does can complete and we can accept new frames. 4828 */ 4829 flush_work(&mvm->roc_done_wk); 4830 4831 guard(mvm)(mvm); 4832 4833 switch (vif->type) { 4834 case NL80211_IFTYPE_STATION: 4835 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4836 4837 /* Use aux roc framework (HS20) */ 4838 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4839 if (!ret) 4840 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4841 return ret; 4842 case NL80211_IFTYPE_P2P_DEVICE: 4843 /* handle below */ 4844 break; 4845 default: 4846 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4847 return -EINVAL; 4848 } 4849 4850 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4851 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4852 return ret; 4853 } 4854 4855 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4856 if (ret) 4857 return ret; 4858 4859 ret = ops->link(mvm, vif); 4860 if (ret) 4861 return ret; 4862 4863 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4864 } 4865 4866 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4867 struct ieee80211_vif *vif) 4868 { 4869 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4870 4871 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4872 4873 iwl_mvm_stop_roc(mvm, vif); 4874 4875 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4876 return 0; 4877 } 4878 4879 struct iwl_mvm_chanctx_usage_data { 4880 struct iwl_mvm *mvm; 4881 struct ieee80211_chanctx_conf *ctx; 4882 bool use_def; 4883 }; 4884 4885 static void iwl_mvm_chanctx_usage_iter(void *_data, u8 *mac, 4886 struct ieee80211_vif *vif) 4887 { 4888 struct iwl_mvm_chanctx_usage_data *data = _data; 4889 struct ieee80211_bss_conf *link_conf; 4890 int link_id; 4891 4892 for_each_vif_active_link(vif, link_conf, link_id) { 4893 if (rcu_access_pointer(link_conf->chanctx_conf) != data->ctx) 4894 continue; 4895 4896 if (iwl_mvm_enable_fils(data->mvm, vif, data->ctx)) 4897 data->use_def = true; 4898 4899 if (vif->type == NL80211_IFTYPE_AP && link_conf->ftmr_params) 4900 data->use_def = true; 4901 } 4902 } 4903 4904 struct cfg80211_chan_def * 4905 iwl_mvm_chanctx_def(struct iwl_mvm *mvm, struct ieee80211_chanctx_conf *ctx) 4906 { 4907 struct iwl_mvm_chanctx_usage_data data = { 4908 .mvm = mvm, 4909 .ctx = ctx, 4910 .use_def = false, 4911 }; 4912 4913 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4914 IEEE80211_IFACE_ITER_NORMAL, 4915 iwl_mvm_chanctx_usage_iter, 4916 &data); 4917 4918 return data.use_def ? &ctx->def : &ctx->min_def; 4919 } 4920 4921 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4922 struct ieee80211_chanctx_conf *ctx) 4923 { 4924 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4925 struct iwl_mvm_phy_ctxt *phy_ctxt; 4926 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4927 int ret; 4928 4929 lockdep_assert_held(&mvm->mutex); 4930 4931 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4932 4933 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4934 if (!phy_ctxt) { 4935 ret = -ENOSPC; 4936 goto out; 4937 } 4938 4939 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 4940 ctx->rx_chains_static, 4941 ctx->rx_chains_dynamic); 4942 if (ret) { 4943 IWL_ERR(mvm, "Failed to add PHY context\n"); 4944 goto out; 4945 } 4946 4947 *phy_ctxt_id = phy_ctxt->id; 4948 out: 4949 return ret; 4950 } 4951 4952 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4953 struct ieee80211_chanctx_conf *ctx) 4954 { 4955 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4956 4957 guard(mvm)(mvm); 4958 return __iwl_mvm_add_chanctx(mvm, ctx); 4959 } 4960 4961 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4962 struct ieee80211_chanctx_conf *ctx) 4963 { 4964 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4965 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4966 4967 lockdep_assert_held(&mvm->mutex); 4968 4969 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4970 } 4971 4972 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4973 struct ieee80211_chanctx_conf *ctx) 4974 { 4975 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4976 4977 guard(mvm)(mvm); 4978 __iwl_mvm_remove_chanctx(mvm, ctx); 4979 } 4980 4981 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4982 struct ieee80211_chanctx_conf *ctx, u32 changed) 4983 { 4984 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4985 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4986 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4987 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4988 4989 if (WARN_ONCE((phy_ctxt->ref > 1) && 4990 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4991 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4992 IEEE80211_CHANCTX_CHANGE_RADAR | 4993 IEEE80211_CHANCTX_CHANGE_MIN_DEF)), 4994 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4995 phy_ctxt->ref, changed)) 4996 return; 4997 4998 guard(mvm)(mvm); 4999 5000 /* we are only changing the min_width, may be a noop */ 5001 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) { 5002 if (phy_ctxt->width == def->width) 5003 return; 5004 5005 /* we are just toggling between 20_NOHT and 20 */ 5006 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5007 def->width <= NL80211_CHAN_WIDTH_20) 5008 return; 5009 } 5010 5011 iwl_mvm_bt_coex_vif_change(mvm); 5012 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5013 ctx->rx_chains_static, 5014 ctx->rx_chains_dynamic); 5015 } 5016 5017 /* 5018 * This function executes the common part for MLD and non-MLD modes. 5019 * 5020 * Returns true if we're done assigning the chanctx 5021 * (either on failure or success) 5022 */ 5023 static bool 5024 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5025 struct ieee80211_vif *vif, 5026 struct ieee80211_chanctx_conf *ctx, 5027 bool switching_chanctx, int *ret) 5028 { 5029 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5030 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5031 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5032 5033 lockdep_assert_held(&mvm->mutex); 5034 5035 mvmvif->deflink.phy_ctxt = phy_ctxt; 5036 5037 switch (vif->type) { 5038 case NL80211_IFTYPE_AP: 5039 /* only needed if we're switching chanctx (i.e. during CSA) */ 5040 if (switching_chanctx) { 5041 mvmvif->ap_ibss_active = true; 5042 break; 5043 } 5044 fallthrough; 5045 case NL80211_IFTYPE_ADHOC: 5046 /* 5047 * The AP binding flow is handled as part of the start_ap flow 5048 * (in bss_info_changed), similarly for IBSS. 5049 */ 5050 *ret = 0; 5051 return true; 5052 case NL80211_IFTYPE_STATION: 5053 break; 5054 case NL80211_IFTYPE_MONITOR: 5055 /* always disable PS when a monitor interface is active */ 5056 mvmvif->ps_disabled = true; 5057 break; 5058 default: 5059 *ret = -EINVAL; 5060 return true; 5061 } 5062 return false; 5063 } 5064 5065 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5066 struct ieee80211_vif *vif, 5067 struct ieee80211_bss_conf *link_conf, 5068 struct ieee80211_chanctx_conf *ctx, 5069 bool switching_chanctx) 5070 { 5071 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5072 int ret; 5073 5074 if (WARN_ON(!link_conf)) 5075 return -EINVAL; 5076 5077 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5078 switching_chanctx, &ret)) 5079 goto out; 5080 5081 ret = iwl_mvm_binding_add_vif(mvm, vif); 5082 if (ret) 5083 goto out; 5084 5085 /* 5086 * Power state must be updated before quotas, 5087 * otherwise fw will complain. 5088 */ 5089 iwl_mvm_power_update_mac(mvm); 5090 5091 /* Setting the quota at this stage is only required for monitor 5092 * interfaces. For the other types, the bss_info changed flow 5093 * will handle quota settings. 5094 */ 5095 if (vif->type == NL80211_IFTYPE_MONITOR) { 5096 mvmvif->monitor_active = true; 5097 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5098 if (ret) 5099 goto out_remove_binding; 5100 5101 ret = iwl_mvm_add_snif_sta(mvm, vif); 5102 if (ret) 5103 goto out_remove_binding; 5104 5105 } 5106 5107 /* Handle binding during CSA */ 5108 if (vif->type == NL80211_IFTYPE_AP) { 5109 iwl_mvm_update_quotas(mvm, false, NULL); 5110 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5111 } 5112 5113 if (vif->type == NL80211_IFTYPE_STATION) { 5114 if (!switching_chanctx) { 5115 mvmvif->csa_bcn_pending = false; 5116 goto out; 5117 } 5118 5119 mvmvif->csa_bcn_pending = true; 5120 5121 if (!fw_has_capa(&mvm->fw->ucode_capa, 5122 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5123 u32 duration = 5 * vif->bss_conf.beacon_int; 5124 5125 /* Protect the session to make sure we hear the first 5126 * beacon on the new channel. 5127 */ 5128 iwl_mvm_protect_session(mvm, vif, duration, duration, 5129 vif->bss_conf.beacon_int / 2, 5130 true); 5131 } 5132 5133 iwl_mvm_update_quotas(mvm, false, NULL); 5134 5135 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5136 link_conf, 5137 false); 5138 } 5139 5140 goto out; 5141 5142 out_remove_binding: 5143 iwl_mvm_binding_remove_vif(mvm, vif); 5144 iwl_mvm_power_update_mac(mvm); 5145 out: 5146 if (ret) 5147 mvmvif->deflink.phy_ctxt = NULL; 5148 return ret; 5149 } 5150 5151 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5152 struct ieee80211_vif *vif, 5153 struct ieee80211_bss_conf *link_conf, 5154 struct ieee80211_chanctx_conf *ctx) 5155 { 5156 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5157 5158 guard(mvm)(mvm); 5159 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5160 } 5161 5162 /* 5163 * This function executes the common part for MLD and non-MLD modes. 5164 * 5165 * Returns if chanctx unassign chanctx is done 5166 * (either on failure or success) 5167 */ 5168 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5169 struct ieee80211_vif *vif, 5170 bool switching_chanctx) 5171 { 5172 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5173 5174 lockdep_assert_held(&mvm->mutex); 5175 iwl_mvm_remove_time_event(mvm, mvmvif, 5176 &mvmvif->time_event_data); 5177 5178 switch (vif->type) { 5179 case NL80211_IFTYPE_ADHOC: 5180 return true; 5181 case NL80211_IFTYPE_MONITOR: 5182 mvmvif->monitor_active = false; 5183 mvmvif->ps_disabled = false; 5184 break; 5185 case NL80211_IFTYPE_AP: 5186 /* This part is triggered only during CSA */ 5187 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5188 return true; 5189 5190 mvmvif->csa_countdown = false; 5191 5192 /* Set CS bit on all the stations */ 5193 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5194 5195 /* Save blocked iface, the timeout is set on the next beacon */ 5196 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5197 5198 mvmvif->ap_ibss_active = false; 5199 break; 5200 default: 5201 break; 5202 } 5203 return false; 5204 } 5205 5206 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5207 struct ieee80211_vif *vif, 5208 struct ieee80211_bss_conf *link_conf, 5209 struct ieee80211_chanctx_conf *ctx, 5210 bool switching_chanctx) 5211 { 5212 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5213 struct ieee80211_vif *disabled_vif = NULL; 5214 5215 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5216 goto out; 5217 5218 if (vif->type == NL80211_IFTYPE_MONITOR) 5219 iwl_mvm_rm_snif_sta(mvm, vif); 5220 5221 5222 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5223 disabled_vif = vif; 5224 if (!fw_has_capa(&mvm->fw->ucode_capa, 5225 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5226 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5227 } 5228 5229 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5230 iwl_mvm_binding_remove_vif(mvm, vif); 5231 5232 out: 5233 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5234 switching_chanctx) 5235 return; 5236 mvmvif->deflink.phy_ctxt = NULL; 5237 iwl_mvm_power_update_mac(mvm); 5238 } 5239 5240 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5241 struct ieee80211_vif *vif, 5242 struct ieee80211_bss_conf *link_conf, 5243 struct ieee80211_chanctx_conf *ctx) 5244 { 5245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5246 5247 guard(mvm)(mvm); 5248 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5249 } 5250 5251 static int 5252 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5253 struct ieee80211_vif_chanctx_switch *vifs, 5254 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5255 { 5256 int ret; 5257 5258 guard(mvm)(mvm); 5259 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5260 vifs[0].old_ctx, true); 5261 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5262 5263 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5264 if (ret) { 5265 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5266 goto out_reassign; 5267 } 5268 5269 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5270 vifs[0].new_ctx, true); 5271 if (ret) { 5272 IWL_ERR(mvm, 5273 "failed to assign new_ctx during channel switch\n"); 5274 goto out_remove; 5275 } 5276 5277 /* we don't support TDLS during DCM - can be caused by channel switch */ 5278 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5279 iwl_mvm_teardown_tdls_peers(mvm); 5280 5281 return 0; 5282 5283 out_remove: 5284 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5285 5286 out_reassign: 5287 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5288 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5289 goto out_restart; 5290 } 5291 5292 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5293 vifs[0].old_ctx, true)) { 5294 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5295 goto out_restart; 5296 } 5297 5298 return ret; 5299 5300 out_restart: 5301 /* things keep failing, better restart the hw */ 5302 iwl_force_nmi(mvm->trans); 5303 return ret; 5304 } 5305 5306 static int 5307 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5308 struct ieee80211_vif_chanctx_switch *vifs, 5309 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5310 { 5311 int ret; 5312 5313 guard(mvm)(mvm); 5314 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5315 vifs[0].old_ctx, true); 5316 5317 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5318 vifs[0].new_ctx, true); 5319 if (ret) { 5320 IWL_ERR(mvm, 5321 "failed to assign new_ctx during channel switch\n"); 5322 goto out_reassign; 5323 } 5324 5325 return 0; 5326 5327 out_reassign: 5328 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5329 vifs[0].old_ctx, true)) { 5330 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5331 goto out_restart; 5332 } 5333 5334 return ret; 5335 5336 out_restart: 5337 /* things keep failing, better restart the hw */ 5338 iwl_force_nmi(mvm->trans); 5339 return ret; 5340 } 5341 5342 /* Execute the common part for both MLD and non-MLD modes */ 5343 int 5344 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5345 struct ieee80211_vif_chanctx_switch *vifs, 5346 int n_vifs, 5347 enum ieee80211_chanctx_switch_mode mode, 5348 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5349 { 5350 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5351 int ret; 5352 5353 /* we only support a single-vif right now */ 5354 if (n_vifs > 1) 5355 return -EOPNOTSUPP; 5356 5357 switch (mode) { 5358 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5359 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5360 break; 5361 case CHANCTX_SWMODE_REASSIGN_VIF: 5362 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5363 break; 5364 default: 5365 ret = -EOPNOTSUPP; 5366 break; 5367 } 5368 5369 return ret; 5370 } 5371 5372 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5373 struct ieee80211_vif_chanctx_switch *vifs, 5374 int n_vifs, 5375 enum ieee80211_chanctx_switch_mode mode) 5376 { 5377 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5378 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5379 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5380 }; 5381 5382 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5383 } 5384 5385 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5386 { 5387 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5388 5389 return mvm->ibss_manager; 5390 } 5391 5392 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5393 bool set) 5394 { 5395 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5396 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5397 5398 if (!mvm_sta || !mvm_sta->vif) { 5399 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5400 return -EINVAL; 5401 } 5402 5403 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5404 &mvm_sta->vif->bss_conf); 5405 } 5406 5407 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5408 struct ieee80211_channel_switch *chsw) 5409 { 5410 /* By implementing this operation, we prevent mac80211 from 5411 * starting its own channel switch timer, so that we can call 5412 * ieee80211_chswitch_done() ourselves at the right time 5413 * (which is when the absence time event starts). 5414 */ 5415 5416 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5417 "dummy channel switch op\n"); 5418 } 5419 5420 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5421 struct ieee80211_vif *vif, 5422 struct ieee80211_channel_switch *chsw) 5423 { 5424 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5425 struct iwl_chan_switch_te_cmd cmd = { 5426 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5427 mvmvif->color)), 5428 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5429 .tsf = cpu_to_le32(chsw->timestamp), 5430 .cs_count = chsw->count, 5431 .cs_mode = chsw->block_tx, 5432 }; 5433 5434 lockdep_assert_held(&mvm->mutex); 5435 5436 if (chsw->delay) 5437 cmd.cs_delayed_bcn_count = 5438 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5439 5440 return iwl_mvm_send_cmd_pdu(mvm, 5441 WIDE_ID(MAC_CONF_GROUP, 5442 CHANNEL_SWITCH_TIME_EVENT_CMD), 5443 0, sizeof(cmd), &cmd); 5444 } 5445 5446 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5447 struct ieee80211_vif *vif, 5448 struct ieee80211_channel_switch *chsw) 5449 { 5450 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5451 u32 apply_time; 5452 5453 /* Schedule the time event to a bit before beacon 1, 5454 * to make sure we're in the new channel when the 5455 * GO/AP arrives. In case count <= 1 immediately schedule the 5456 * TE (this might result with some packet loss or connection 5457 * loss). 5458 */ 5459 if (chsw->count <= 1) 5460 apply_time = 0; 5461 else 5462 apply_time = chsw->device_timestamp + 5463 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5464 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5465 5466 if (chsw->block_tx) 5467 iwl_mvm_csa_client_absent(mvm, vif); 5468 5469 if (mvmvif->bf_enabled) { 5470 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5471 5472 if (ret) 5473 return ret; 5474 } 5475 5476 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5477 apply_time); 5478 5479 return 0; 5480 } 5481 5482 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5483 { 5484 int i; 5485 5486 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5487 struct iwl_mvm_txq *mvmtxq = 5488 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5489 5490 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5491 } 5492 } 5493 5494 #define IWL_MAX_CSA_BLOCK_TX 1500 5495 static int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5496 struct ieee80211_vif *vif, 5497 struct ieee80211_channel_switch *chsw) 5498 { 5499 struct ieee80211_vif *csa_vif; 5500 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5501 struct iwl_mvm_txq *mvmtxq; 5502 int ret; 5503 5504 lockdep_assert_held(&mvm->mutex); 5505 5506 mvmvif->csa_failed = false; 5507 mvmvif->csa_blocks_tx = false; 5508 5509 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5510 chsw->chandef.center_freq1); 5511 5512 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5513 ieee80211_vif_to_wdev(vif), 5514 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5515 5516 switch (vif->type) { 5517 case NL80211_IFTYPE_AP: 5518 csa_vif = 5519 rcu_dereference_protected(mvm->csa_vif, 5520 lockdep_is_held(&mvm->mutex)); 5521 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5522 "Another CSA is already in progress")) 5523 return -EBUSY; 5524 5525 /* we still didn't unblock tx. prevent new CS meanwhile */ 5526 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5527 lockdep_is_held(&mvm->mutex))) 5528 return -EBUSY; 5529 5530 rcu_assign_pointer(mvm->csa_vif, vif); 5531 5532 if (WARN_ONCE(mvmvif->csa_countdown, 5533 "Previous CSA countdown didn't complete")) 5534 return -EBUSY; 5535 5536 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5537 5538 if (!chsw->block_tx) 5539 break; 5540 /* don't need blocking in driver otherwise - mac80211 will do */ 5541 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5542 break; 5543 5544 mvmvif->csa_blocks_tx = true; 5545 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5546 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5547 ieee80211_iterate_stations_atomic(mvm->hw, 5548 iwl_mvm_csa_block_txqs, 5549 NULL); 5550 break; 5551 case NL80211_IFTYPE_STATION: 5552 mvmvif->csa_blocks_tx = chsw->block_tx; 5553 5554 /* 5555 * In the new flow FW is in charge of timing the switch so there 5556 * is no need for all of this 5557 */ 5558 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5559 CHANNEL_SWITCH_ERROR_NOTIF, 5560 0)) 5561 break; 5562 5563 /* 5564 * We haven't configured the firmware to be associated yet since 5565 * we don't know the dtim period. In this case, the firmware can't 5566 * track the beacons. 5567 */ 5568 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5569 return -EBUSY; 5570 5571 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5572 hweight16(vif->valid_links) <= 1) 5573 schedule_delayed_work(&mvmvif->csa_work, 0); 5574 5575 if (chsw->block_tx) { 5576 /* 5577 * In case of undetermined / long time with immediate 5578 * quiet monitor status to gracefully disconnect 5579 */ 5580 if (!chsw->count || 5581 chsw->count * vif->bss_conf.beacon_int > 5582 IWL_MAX_CSA_BLOCK_TX) 5583 schedule_delayed_work(&mvmvif->csa_work, 5584 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5585 } 5586 5587 if (!fw_has_capa(&mvm->fw->ucode_capa, 5588 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5589 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5590 if (ret) 5591 return ret; 5592 } else { 5593 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5594 } 5595 5596 mvmvif->csa_count = chsw->count; 5597 mvmvif->csa_misbehave = false; 5598 break; 5599 default: 5600 break; 5601 } 5602 5603 mvmvif->ps_disabled = true; 5604 5605 ret = iwl_mvm_power_update_ps(mvm); 5606 if (ret) 5607 return ret; 5608 5609 /* we won't be on this channel any longer */ 5610 iwl_mvm_teardown_tdls_peers(mvm); 5611 5612 return ret; 5613 } 5614 5615 int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5616 struct ieee80211_vif *vif, 5617 struct ieee80211_channel_switch *chsw) 5618 { 5619 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5620 5621 guard(mvm)(mvm); 5622 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5623 } 5624 5625 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5626 struct ieee80211_vif *vif, 5627 struct ieee80211_channel_switch *chsw) 5628 { 5629 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5630 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5631 struct iwl_chan_switch_te_cmd cmd = { 5632 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5633 mvmvif->color)), 5634 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5635 .tsf = cpu_to_le32(chsw->timestamp), 5636 .cs_count = chsw->count, 5637 .cs_mode = chsw->block_tx, 5638 }; 5639 5640 /* 5641 * In the new flow FW is in charge of timing the switch so there is no 5642 * need for all of this 5643 */ 5644 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5645 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5646 return; 5647 5648 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5649 return; 5650 5651 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5652 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5653 5654 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5655 if (mvmvif->csa_misbehave) { 5656 struct ieee80211_bss_conf *link_conf; 5657 5658 /* Second time, give up on this AP*/ 5659 5660 link_conf = wiphy_dereference(hw->wiphy, 5661 vif->link_conf[chsw->link_id]); 5662 if (WARN_ON(!link_conf)) 5663 return; 5664 5665 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5666 ieee80211_chswitch_done(vif, false, 0); 5667 mvmvif->csa_misbehave = false; 5668 return; 5669 } 5670 mvmvif->csa_misbehave = true; 5671 } 5672 mvmvif->csa_count = chsw->count; 5673 5674 guard(mvm)(mvm); 5675 if (mvmvif->csa_failed) 5676 return; 5677 5678 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5679 WIDE_ID(MAC_CONF_GROUP, 5680 CHANNEL_SWITCH_TIME_EVENT_CMD), 5681 0, sizeof(cmd), &cmd)); 5682 } 5683 5684 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5685 { 5686 int i; 5687 5688 if (!iwl_mvm_has_new_tx_api(mvm)) { 5689 /* we can't ask the firmware anything if it is dead */ 5690 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5691 &mvm->status)) 5692 return; 5693 if (drop) { 5694 guard(mvm)(mvm); 5695 iwl_mvm_flush_tx_path(mvm, 5696 iwl_mvm_flushable_queues(mvm) & queues); 5697 } else { 5698 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5699 } 5700 return; 5701 } 5702 5703 guard(mvm)(mvm); 5704 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5705 struct ieee80211_sta *sta; 5706 5707 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5708 lockdep_is_held(&mvm->mutex)); 5709 if (IS_ERR_OR_NULL(sta)) 5710 continue; 5711 5712 if (drop) 5713 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5714 else 5715 iwl_mvm_wait_sta_queues_empty(mvm, 5716 iwl_mvm_sta_from_mac80211(sta)); 5717 } 5718 } 5719 5720 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5721 u32 queues, bool drop) 5722 { 5723 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5724 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5725 struct iwl_mvm_sta *mvmsta; 5726 struct ieee80211_sta *sta; 5727 bool ap_sta_done = false; 5728 int i; 5729 u32 msk = 0; 5730 5731 if (!vif) { 5732 iwl_mvm_flush_no_vif(mvm, queues, drop); 5733 return; 5734 } 5735 5736 if (!drop && hweight16(vif->active_links) <= 1) { 5737 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5738 struct ieee80211_bss_conf *link_conf; 5739 5740 link_conf = wiphy_dereference(hw->wiphy, 5741 vif->link_conf[link_id]); 5742 if (WARN_ON(!link_conf)) 5743 return; 5744 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5745 drop = true; 5746 } 5747 5748 /* Make sure we're done with the deferred traffic before flushing */ 5749 flush_work(&mvm->add_stream_wk); 5750 5751 mutex_lock(&mvm->mutex); 5752 5753 /* flush the AP-station and all TDLS peers */ 5754 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5755 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5756 lockdep_is_held(&mvm->mutex)); 5757 if (IS_ERR_OR_NULL(sta)) 5758 continue; 5759 5760 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5761 if (mvmsta->vif != vif) 5762 continue; 5763 5764 if (sta == mvmvif->ap_sta) { 5765 if (ap_sta_done) 5766 continue; 5767 ap_sta_done = true; 5768 } 5769 5770 if (drop) { 5771 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5772 mvmsta->tfd_queue_msk)) 5773 IWL_ERR(mvm, "flush request fail\n"); 5774 } else { 5775 if (iwl_mvm_has_new_tx_api(mvm)) 5776 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5777 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5778 msk |= mvmsta->tfd_queue_msk; 5779 } 5780 } 5781 5782 mutex_unlock(&mvm->mutex); 5783 5784 /* this can take a while, and we may need/want other operations 5785 * to succeed while doing this, so do it without the mutex held 5786 * If the firmware is dead, this can't work... 5787 */ 5788 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5789 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5790 &mvm->status)) 5791 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5792 } 5793 5794 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5795 struct ieee80211_sta *sta) 5796 { 5797 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5798 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5799 struct iwl_mvm_link_sta *mvm_link_sta; 5800 struct ieee80211_link_sta *link_sta; 5801 int link_id; 5802 5803 guard(mvm)(mvm); 5804 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5805 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5806 lockdep_is_held(&mvm->mutex)); 5807 if (!mvm_link_sta) 5808 continue; 5809 5810 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5811 mvmsta->tfd_queue_msk)) 5812 IWL_ERR(mvm, "flush request fail\n"); 5813 } 5814 } 5815 5816 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 5817 struct survey_info *survey) 5818 { 5819 int chan_idx; 5820 enum nl80211_band band; 5821 int ret; 5822 5823 mutex_lock(&mvm->mutex); 5824 5825 if (!mvm->acs_survey) { 5826 ret = -ENOENT; 5827 goto out; 5828 } 5829 5830 /* Find and return the next entry that has a non-zero active time */ 5831 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5832 struct ieee80211_supported_band *sband = 5833 mvm->hw->wiphy->bands[band]; 5834 5835 if (!sband) 5836 continue; 5837 5838 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 5839 struct iwl_mvm_acs_survey_channel *info = 5840 &mvm->acs_survey->bands[band][chan_idx]; 5841 5842 if (!info->time) 5843 continue; 5844 5845 /* Found (the next) channel to report */ 5846 survey->channel = &sband->channels[chan_idx]; 5847 survey->filled = SURVEY_INFO_TIME | 5848 SURVEY_INFO_TIME_BUSY | 5849 SURVEY_INFO_TIME_RX | 5850 SURVEY_INFO_TIME_TX; 5851 survey->time = info->time; 5852 survey->time_busy = info->time_busy; 5853 survey->time_rx = info->time_rx; 5854 survey->time_tx = info->time_tx; 5855 survey->noise = info->noise; 5856 if (survey->noise < 0) 5857 survey->filled |= SURVEY_INFO_NOISE_DBM; 5858 5859 /* Clear time so that channel is only reported once */ 5860 info->time = 0; 5861 5862 ret = 0; 5863 goto out; 5864 } 5865 } 5866 5867 ret = -ENOENT; 5868 5869 out: 5870 mutex_unlock(&mvm->mutex); 5871 5872 return ret; 5873 } 5874 5875 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5876 struct survey_info *survey) 5877 { 5878 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5879 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5880 WIDE_ID(SYSTEM_GROUP, 5881 SYSTEM_STATISTICS_CMD), 5882 IWL_FW_CMD_VER_UNKNOWN); 5883 5884 memset(survey, 0, sizeof(*survey)); 5885 5886 if (!fw_has_capa(&mvm->fw->ucode_capa, 5887 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5888 return -ENOENT; 5889 5890 /* 5891 * Return the beacon stats at index zero and pass on following indices 5892 * to the function returning the full survey, most likely for ACS 5893 * (Automatic Channel Selection). 5894 */ 5895 if (idx > 0) 5896 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 5897 5898 guard(mvm)(mvm); 5899 5900 if (iwl_mvm_firmware_running(mvm)) { 5901 int ret = iwl_mvm_request_statistics(mvm, false); 5902 5903 if (ret) 5904 return ret; 5905 } 5906 5907 survey->filled = SURVEY_INFO_TIME_RX | 5908 SURVEY_INFO_TIME_TX; 5909 5910 survey->time_rx = mvm->accu_radio_stats.rx_time + 5911 mvm->radio_stats.rx_time; 5912 do_div(survey->time_rx, USEC_PER_MSEC); 5913 5914 survey->time_tx = mvm->accu_radio_stats.tx_time + 5915 mvm->radio_stats.tx_time; 5916 do_div(survey->time_tx, USEC_PER_MSEC); 5917 5918 /* the new fw api doesn't support the following fields */ 5919 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 5920 return 0; 5921 5922 survey->filled |= SURVEY_INFO_TIME | 5923 SURVEY_INFO_TIME_SCAN; 5924 survey->time = mvm->accu_radio_stats.on_time_rf + 5925 mvm->radio_stats.on_time_rf; 5926 do_div(survey->time, USEC_PER_MSEC); 5927 5928 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5929 mvm->radio_stats.on_time_scan; 5930 do_div(survey->time_scan, USEC_PER_MSEC); 5931 5932 return 0; 5933 } 5934 5935 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5936 { 5937 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5938 u32 gi_ltf; 5939 5940 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5941 case RATE_MCS_CHAN_WIDTH_20: 5942 rinfo->bw = RATE_INFO_BW_20; 5943 break; 5944 case RATE_MCS_CHAN_WIDTH_40: 5945 rinfo->bw = RATE_INFO_BW_40; 5946 break; 5947 case RATE_MCS_CHAN_WIDTH_80: 5948 rinfo->bw = RATE_INFO_BW_80; 5949 break; 5950 case RATE_MCS_CHAN_WIDTH_160: 5951 rinfo->bw = RATE_INFO_BW_160; 5952 break; 5953 case RATE_MCS_CHAN_WIDTH_320: 5954 rinfo->bw = RATE_INFO_BW_320; 5955 break; 5956 } 5957 5958 if (format == RATE_MCS_MOD_TYPE_CCK || 5959 format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) { 5960 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5961 5962 /* add the offset needed to get to the legacy ofdm indices */ 5963 if (format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) 5964 rate += IWL_FIRST_OFDM_RATE; 5965 5966 switch (rate) { 5967 case IWL_RATE_1M_INDEX: 5968 rinfo->legacy = 10; 5969 break; 5970 case IWL_RATE_2M_INDEX: 5971 rinfo->legacy = 20; 5972 break; 5973 case IWL_RATE_5M_INDEX: 5974 rinfo->legacy = 55; 5975 break; 5976 case IWL_RATE_11M_INDEX: 5977 rinfo->legacy = 110; 5978 break; 5979 case IWL_RATE_6M_INDEX: 5980 rinfo->legacy = 60; 5981 break; 5982 case IWL_RATE_9M_INDEX: 5983 rinfo->legacy = 90; 5984 break; 5985 case IWL_RATE_12M_INDEX: 5986 rinfo->legacy = 120; 5987 break; 5988 case IWL_RATE_18M_INDEX: 5989 rinfo->legacy = 180; 5990 break; 5991 case IWL_RATE_24M_INDEX: 5992 rinfo->legacy = 240; 5993 break; 5994 case IWL_RATE_36M_INDEX: 5995 rinfo->legacy = 360; 5996 break; 5997 case IWL_RATE_48M_INDEX: 5998 rinfo->legacy = 480; 5999 break; 6000 case IWL_RATE_54M_INDEX: 6001 rinfo->legacy = 540; 6002 } 6003 return; 6004 } 6005 6006 rinfo->nss = u32_get_bits(rate_n_flags, 6007 RATE_MCS_NSS_MSK) + 1; 6008 rinfo->mcs = format == RATE_MCS_MOD_TYPE_HT ? 6009 RATE_HT_MCS_INDEX(rate_n_flags) : 6010 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6011 6012 if (rate_n_flags & RATE_MCS_SGI_MSK) 6013 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6014 6015 switch (format) { 6016 case RATE_MCS_MOD_TYPE_EHT: 6017 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6018 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6019 break; 6020 case RATE_MCS_MOD_TYPE_HE: 6021 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6022 6023 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6024 6025 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6026 rinfo->bw = RATE_INFO_BW_HE_RU; 6027 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6028 } 6029 6030 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6031 case RATE_MCS_HE_TYPE_SU: 6032 case RATE_MCS_HE_TYPE_EXT_SU: 6033 if (gi_ltf == 0 || gi_ltf == 1) 6034 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6035 else if (gi_ltf == 2) 6036 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6037 else if (gi_ltf == 3) 6038 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6039 else 6040 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6041 break; 6042 case RATE_MCS_HE_TYPE_MU: 6043 if (gi_ltf == 0 || gi_ltf == 1) 6044 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6045 else if (gi_ltf == 2) 6046 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6047 else 6048 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6049 break; 6050 case RATE_MCS_HE_TYPE_TRIG: 6051 if (gi_ltf == 0 || gi_ltf == 1) 6052 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6053 else 6054 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6055 break; 6056 } 6057 6058 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6059 rinfo->he_dcm = 1; 6060 break; 6061 case RATE_MCS_MOD_TYPE_HT: 6062 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6063 break; 6064 case RATE_MCS_MOD_TYPE_VHT: 6065 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6066 break; 6067 } 6068 } 6069 6070 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6071 struct ieee80211_vif *vif, 6072 struct ieee80211_sta *sta, 6073 struct station_info *sinfo) 6074 { 6075 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6076 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6077 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6078 int i; 6079 6080 if (mvmsta->deflink.avg_energy) { 6081 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6082 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6083 } 6084 6085 if (iwl_mvm_has_tlc_offload(mvm)) { 6086 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6087 6088 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6089 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6090 } 6091 6092 /* if beacon filtering isn't on mac80211 does it anyway */ 6093 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6094 return; 6095 6096 if (!vif->cfg.assoc) 6097 return; 6098 6099 guard(mvm)(mvm); 6100 6101 if (sta != mvmvif->ap_sta) 6102 return; 6103 6104 if (iwl_mvm_request_statistics(mvm, false)) 6105 return; 6106 6107 sinfo->rx_beacon = 0; 6108 for_each_mvm_vif_valid_link(mvmvif, i) 6109 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6110 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6111 6112 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6113 if (mvmvif->deflink.beacon_stats.avg_signal) { 6114 /* firmware only reports a value after RXing a few beacons */ 6115 sinfo->rx_beacon_signal_avg = 6116 mvmvif->deflink.beacon_stats.avg_signal; 6117 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6118 } 6119 } 6120 6121 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6122 struct ieee80211_vif *vif, 6123 const struct ieee80211_mlme_event *mlme) 6124 { 6125 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6126 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6127 iwl_dbg_tlv_time_point(&mvm->fwrt, 6128 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6129 NULL); 6130 return; 6131 } 6132 6133 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6134 iwl_dbg_tlv_time_point(&mvm->fwrt, 6135 IWL_FW_INI_TIME_POINT_DEASSOC, 6136 NULL); 6137 return; 6138 } 6139 } 6140 6141 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6142 struct ieee80211_vif *vif, 6143 const struct ieee80211_event *event) 6144 { 6145 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6146 do { \ 6147 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6148 break; \ 6149 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6150 } while (0) 6151 6152 struct iwl_fw_dbg_trigger_tlv *trig; 6153 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6154 6155 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6156 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6157 return; 6158 } 6159 6160 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6161 FW_DBG_TRIGGER_MLME); 6162 if (!trig) 6163 return; 6164 6165 trig_mlme = (void *)trig->data; 6166 6167 if (event->u.mlme.data == ASSOC_EVENT) { 6168 if (event->u.mlme.status == MLME_DENIED) 6169 CHECK_MLME_TRIGGER(stop_assoc_denied, 6170 "DENIED ASSOC: reason %d", 6171 event->u.mlme.reason); 6172 else if (event->u.mlme.status == MLME_TIMEOUT) 6173 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6174 "ASSOC TIMEOUT"); 6175 } else if (event->u.mlme.data == AUTH_EVENT) { 6176 if (event->u.mlme.status == MLME_DENIED) 6177 CHECK_MLME_TRIGGER(stop_auth_denied, 6178 "DENIED AUTH: reason %d", 6179 event->u.mlme.reason); 6180 else if (event->u.mlme.status == MLME_TIMEOUT) 6181 CHECK_MLME_TRIGGER(stop_auth_timeout, 6182 "AUTH TIMEOUT"); 6183 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6184 CHECK_MLME_TRIGGER(stop_rx_deauth, 6185 "DEAUTH RX %d", event->u.mlme.reason); 6186 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6187 CHECK_MLME_TRIGGER(stop_tx_deauth, 6188 "DEAUTH TX %d", event->u.mlme.reason); 6189 } 6190 #undef CHECK_MLME_TRIGGER 6191 } 6192 6193 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6194 struct ieee80211_vif *vif, 6195 const struct ieee80211_event *event) 6196 { 6197 struct iwl_fw_dbg_trigger_tlv *trig; 6198 struct iwl_fw_dbg_trigger_ba *ba_trig; 6199 6200 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6201 FW_DBG_TRIGGER_BA); 6202 if (!trig) 6203 return; 6204 6205 ba_trig = (void *)trig->data; 6206 6207 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6208 return; 6209 6210 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6211 "BAR received from %pM, tid %d, ssn %d", 6212 event->u.ba.sta->addr, event->u.ba.tid, 6213 event->u.ba.ssn); 6214 } 6215 6216 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6217 struct ieee80211_vif *vif, 6218 const struct ieee80211_event *event) 6219 { 6220 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6221 6222 switch (event->type) { 6223 case MLME_EVENT: 6224 iwl_mvm_event_mlme_callback(mvm, vif, event); 6225 break; 6226 case BAR_RX_EVENT: 6227 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6228 break; 6229 case BA_FRAME_TIMEOUT: 6230 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6231 event->u.ba.tid); 6232 break; 6233 default: 6234 break; 6235 } 6236 } 6237 6238 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6239 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6240 enum iwl_mvm_rxq_notif_type type, 6241 bool sync, 6242 const void *data, u32 size) 6243 { 6244 DEFINE_RAW_FLEX(struct iwl_rxq_sync_cmd, cmd, payload, 6245 sizeof(struct iwl_mvm_internal_rxq_notif)); 6246 struct iwl_mvm_internal_rxq_notif *notif = 6247 (struct iwl_mvm_internal_rxq_notif *)cmd->payload; 6248 struct iwl_host_cmd hcmd = { 6249 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6250 .data[0] = cmd, 6251 .len[0] = __struct_size(cmd), 6252 .data[1] = data, 6253 .len[1] = size, 6254 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6255 }; 6256 int ret; 6257 6258 cmd->rxq_mask = cpu_to_le32(BIT(mvm->trans->info.num_rxqs) - 1); 6259 cmd->count = cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6260 size); 6261 notif->type = type; 6262 notif->sync = sync; 6263 6264 /* size must be a multiple of DWORD */ 6265 if (WARN_ON(cmd->count & cpu_to_le32(3))) 6266 return; 6267 6268 if (!iwl_mvm_has_new_rx_api(mvm)) 6269 return; 6270 6271 if (sync) { 6272 notif->cookie = mvm->queue_sync_cookie; 6273 mvm->queue_sync_state = (1 << mvm->trans->info.num_rxqs) - 1; 6274 } 6275 6276 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6277 if (ret) { 6278 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6279 goto out; 6280 } 6281 6282 if (sync) { 6283 lockdep_assert_held(&mvm->mutex); 6284 ret = wait_event_timeout(mvm->rx_sync_waitq, 6285 READ_ONCE(mvm->queue_sync_state) == 0, 6286 SYNC_RX_QUEUE_TIMEOUT); 6287 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6288 mvm->queue_sync_state, 6289 mvm->queue_sync_cookie); 6290 } 6291 6292 out: 6293 if (sync) { 6294 mvm->queue_sync_state = 0; 6295 mvm->queue_sync_cookie++; 6296 } 6297 } 6298 6299 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6300 { 6301 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6302 6303 guard(mvm)(mvm); 6304 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6305 } 6306 6307 int 6308 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6309 struct ieee80211_vif *vif, 6310 struct cfg80211_ftm_responder_stats *stats) 6311 { 6312 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6313 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6314 6315 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6316 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6317 return -EINVAL; 6318 6319 mutex_lock(&mvm->mutex); 6320 *stats = mvm->ftm_resp_stats; 6321 mutex_unlock(&mvm->mutex); 6322 6323 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6324 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6325 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6326 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6327 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6328 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6329 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6330 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6331 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6332 6333 return 0; 6334 } 6335 6336 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6337 struct cfg80211_pmsr_request *request) 6338 { 6339 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6340 6341 guard(mvm)(mvm); 6342 return iwl_mvm_ftm_start(mvm, vif, request); 6343 } 6344 6345 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6346 struct cfg80211_pmsr_request *request) 6347 { 6348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6349 6350 guard(mvm)(mvm); 6351 iwl_mvm_ftm_abort(mvm, request); 6352 } 6353 6354 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6355 { 6356 u8 protocol = ip_hdr(skb)->protocol; 6357 6358 if (!IS_ENABLED(CONFIG_INET)) 6359 return false; 6360 6361 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6362 } 6363 6364 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6365 struct sk_buff *head, 6366 struct sk_buff *skb) 6367 { 6368 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6369 6370 /* For now don't aggregate IPv6 in AMSDU */ 6371 if (skb->protocol != htons(ETH_P_IP)) 6372 return false; 6373 6374 if (!iwl_mvm_is_csum_supported(mvm)) 6375 return true; 6376 6377 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6378 } 6379 6380 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6381 struct ieee80211_vif *vif, 6382 struct cfg80211_set_hw_timestamp *hwts) 6383 { 6384 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6385 u32 protocols = 0; 6386 6387 /* HW timestamping is only supported for a specific station */ 6388 if (!hwts->macaddr) 6389 return -EOPNOTSUPP; 6390 6391 if (hwts->enable) 6392 protocols = 6393 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6394 6395 guard(mvm)(mvm); 6396 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6397 } 6398 6399 const struct ieee80211_ops iwl_mvm_hw_ops = { 6400 .tx = iwl_mvm_mac_tx, 6401 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6402 .ampdu_action = iwl_mvm_mac_ampdu_action, 6403 .get_antenna = iwl_mvm_op_get_antenna, 6404 .set_antenna = iwl_mvm_op_set_antenna, 6405 .start = iwl_mvm_mac_start, 6406 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6407 .stop = iwl_mvm_mac_stop, 6408 .add_interface = iwl_mvm_mac_add_interface, 6409 .remove_interface = iwl_mvm_mac_remove_interface, 6410 .config = iwl_mvm_mac_config, 6411 .prepare_multicast = iwl_mvm_prepare_multicast, 6412 .configure_filter = iwl_mvm_configure_filter, 6413 .config_iface_filter = iwl_mvm_config_iface_filter, 6414 .bss_info_changed = iwl_mvm_bss_info_changed, 6415 .hw_scan = iwl_mvm_mac_hw_scan, 6416 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6417 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6418 .sta_state = iwl_mvm_mac_sta_state, 6419 .sta_notify = iwl_mvm_mac_sta_notify, 6420 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6421 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6422 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6423 .link_sta_rc_update = iwl_mvm_sta_rc_update, 6424 .conf_tx = iwl_mvm_mac_conf_tx, 6425 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6426 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6427 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6428 .flush = iwl_mvm_mac_flush, 6429 .flush_sta = iwl_mvm_mac_flush_sta, 6430 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6431 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6432 .set_key = iwl_mvm_mac_set_key, 6433 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6434 .remain_on_channel = iwl_mvm_roc, 6435 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6436 .add_chanctx = iwl_mvm_add_chanctx, 6437 .remove_chanctx = iwl_mvm_remove_chanctx, 6438 .change_chanctx = iwl_mvm_change_chanctx, 6439 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6440 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6441 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6442 6443 .start_ap = iwl_mvm_start_ap, 6444 .stop_ap = iwl_mvm_stop_ap, 6445 .join_ibss = iwl_mvm_start_ibss, 6446 .leave_ibss = iwl_mvm_stop_ibss, 6447 6448 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6449 6450 .set_tim = iwl_mvm_set_tim, 6451 6452 .channel_switch = iwl_mvm_channel_switch, 6453 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6454 .post_channel_switch = iwl_mvm_post_channel_switch, 6455 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6456 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6457 6458 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6459 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6460 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6461 6462 .event_callback = iwl_mvm_mac_event_callback, 6463 6464 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6465 6466 #ifdef CONFIG_PM_SLEEP 6467 /* look at d3.c */ 6468 .suspend = iwl_mvm_suspend, 6469 .resume = iwl_mvm_resume, 6470 .set_wakeup = iwl_mvm_set_wakeup, 6471 .set_rekey_data = iwl_mvm_set_rekey_data, 6472 #if IS_ENABLED(CONFIG_IPV6) 6473 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6474 #endif 6475 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6476 #endif 6477 .get_survey = iwl_mvm_mac_get_survey, 6478 .sta_statistics = iwl_mvm_mac_sta_statistics, 6479 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6480 .start_pmsr = iwl_mvm_start_pmsr, 6481 .abort_pmsr = iwl_mvm_abort_pmsr, 6482 6483 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6484 #ifdef CONFIG_IWLWIFI_DEBUGFS 6485 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6486 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6487 #endif 6488 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6489 }; 6490