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