1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2024 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_MVM_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->dev, mvm->cfg, 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 /* Some kind of regulatory mess means we need to currently disallow 169 * puncturing in the US and Canada. Do that here, at least until we 170 * figure out the new chanctx APIs for puncturing. 171 */ 172 if (resp->mcc == cpu_to_le16(IWL_MCC_US) || 173 resp->mcc == cpu_to_le16(IWL_MCC_CANADA)) 174 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING); 175 else 176 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags); 177 178 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 179 180 out: 181 kfree(resp); 182 return regd; 183 } 184 185 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 186 { 187 bool changed; 188 struct ieee80211_regdomain *regd; 189 190 if (!iwl_mvm_is_lar_supported(mvm)) 191 return; 192 193 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 194 if (!IS_ERR_OR_NULL(regd)) { 195 /* only update the regulatory core if changed */ 196 if (changed) 197 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 198 199 kfree(regd); 200 } 201 } 202 203 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 204 bool *changed) 205 { 206 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 207 iwl_mvm_is_wifi_mcc_supported(mvm) ? 208 MCC_SOURCE_GET_CURRENT : 209 MCC_SOURCE_OLD_FW, changed); 210 } 211 212 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 213 { 214 enum iwl_mcc_source used_src; 215 struct ieee80211_regdomain *regd; 216 int ret; 217 bool changed; 218 const struct ieee80211_regdomain *r = 219 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 220 221 if (!r) 222 return -ENOENT; 223 224 /* save the last source in case we overwrite it below */ 225 used_src = mvm->mcc_src; 226 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 227 /* Notify the firmware we support wifi location updates */ 228 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 229 if (!IS_ERR_OR_NULL(regd)) 230 kfree(regd); 231 } 232 233 /* Now set our last stored MCC and source */ 234 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 235 &changed); 236 if (IS_ERR_OR_NULL(regd)) 237 return -EIO; 238 239 /* update cfg80211 if the regdomain was changed or the caller explicitly 240 * asked to update regdomain 241 */ 242 if (changed || force_regd_sync) 243 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 244 else 245 ret = 0; 246 247 kfree(regd); 248 return ret; 249 } 250 251 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 252 static const u8 he_if_types_ext_capa_sta[] = { 253 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 254 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 255 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 256 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 257 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 258 }; 259 260 static const u8 tm_if_types_ext_capa_sta[] = { 261 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 262 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 263 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 264 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 265 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 266 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 267 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 268 }; 269 270 /* Additional interface types for which extended capabilities are 271 * specified separately 272 */ 273 274 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 275 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 276 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 277 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 278 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 279 #define IWL_MVM_MLD_CAPA_OPS FIELD_PREP_CONST( \ 280 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \ 281 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) 282 283 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 284 { 285 .iftype = NL80211_IFTYPE_STATION, 286 .extended_capabilities = he_if_types_ext_capa_sta, 287 .extended_capabilities_mask = he_if_types_ext_capa_sta, 288 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 289 /* relevant only if EHT is supported */ 290 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 291 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 292 }, 293 { 294 .iftype = NL80211_IFTYPE_STATION, 295 .extended_capabilities = tm_if_types_ext_capa_sta, 296 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 297 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 298 /* relevant only if EHT is supported */ 299 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 300 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 301 }, 302 }; 303 304 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 305 { 306 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 307 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 308 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 309 return 0; 310 } 311 312 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 313 { 314 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 315 316 /* This has been tested on those devices only */ 317 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 318 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) 319 return -EOPNOTSUPP; 320 321 if (!mvm->nvm_data) 322 return -EBUSY; 323 324 /* mac80211 ensures the device is not started, 325 * so the firmware cannot be running 326 */ 327 328 mvm->set_tx_ant = tx_ant; 329 mvm->set_rx_ant = rx_ant; 330 331 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 332 333 return 0; 334 } 335 336 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 337 { 338 struct ieee80211_hw *hw = mvm->hw; 339 int num_mac, ret, i; 340 static const u32 mvm_ciphers[] = { 341 WLAN_CIPHER_SUITE_WEP40, 342 WLAN_CIPHER_SUITE_WEP104, 343 WLAN_CIPHER_SUITE_TKIP, 344 WLAN_CIPHER_SUITE_CCMP, 345 }; 346 #ifdef CONFIG_PM_SLEEP 347 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 348 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 349 #endif 350 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 351 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 352 353 /* Tell mac80211 our characteristics */ 354 ieee80211_hw_set(hw, SIGNAL_DBM); 355 ieee80211_hw_set(hw, SPECTRUM_MGMT); 356 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 357 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 358 ieee80211_hw_set(hw, SUPPORTS_PS); 359 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 360 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 361 ieee80211_hw_set(hw, CONNECTION_MONITOR); 362 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 363 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 364 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 365 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 366 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 367 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 368 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 369 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 370 371 /* Set this early since we need to have it for the check below */ 372 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 373 !iwlwifi_mod_params.disable_11ax && 374 !iwlwifi_mod_params.disable_11be) { 375 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 376 /* we handle this already earlier, but need it for MLO */ 377 ieee80211_hw_set(hw, HANDLES_QUIET_CSA); 378 } 379 380 /* With MLD FW API, it tracks timing by itself, 381 * no need for any timing from the host 382 */ 383 if (!mvm->mld_api_is_used) 384 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 385 386 /* 387 * On older devices, enabling TX A-MSDU occasionally leads to 388 * something getting messed up, the command read from the FIFO 389 * gets out of sync and isn't a TX command, so that we have an 390 * assert EDC. 391 * 392 * It's not clear where the bug is, but since we didn't used to 393 * support A-MSDU until moving the mac80211 iTXQs, just leave it 394 * for older devices. We also don't see this issue on any newer 395 * devices. 396 */ 397 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 398 ieee80211_hw_set(hw, TX_AMSDU); 399 ieee80211_hw_set(hw, TX_FRAG_LIST); 400 401 if (iwl_mvm_has_tlc_offload(mvm)) { 402 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 403 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 404 } 405 406 /* We want to use the mac80211's reorder buffer for 9000 */ 407 if (iwl_mvm_has_new_rx_api(mvm) && 408 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 409 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 410 411 if (fw_has_capa(&mvm->fw->ucode_capa, 412 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 413 ieee80211_hw_set(hw, AP_LINK_PS); 414 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 415 /* 416 * we absolutely need this for the new TX API since that comes 417 * with many more queues than the current code can deal with 418 * for station powersave 419 */ 420 return -EINVAL; 421 } 422 423 if (mvm->trans->num_rx_queues > 1) 424 ieee80211_hw_set(hw, USES_RSS); 425 426 if (mvm->trans->max_skb_frags) 427 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 428 429 hw->queues = IEEE80211_NUM_ACS; 430 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 431 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 432 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 433 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 434 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 435 436 hw->radiotap_timestamp.units_pos = 437 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 438 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 439 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 440 hw->radiotap_timestamp.accuracy = 22; 441 442 if (!iwl_mvm_has_tlc_offload(mvm)) 443 hw->rate_control_algorithm = RS_NAME; 444 445 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 446 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 447 hw->max_tx_fragments = mvm->trans->max_skb_frags; 448 449 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 450 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 451 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 452 hw->wiphy->cipher_suites = mvm->ciphers; 453 454 if (iwl_mvm_has_new_rx_api(mvm)) { 455 mvm->ciphers[hw->wiphy->n_cipher_suites] = 456 WLAN_CIPHER_SUITE_GCMP; 457 hw->wiphy->n_cipher_suites++; 458 mvm->ciphers[hw->wiphy->n_cipher_suites] = 459 WLAN_CIPHER_SUITE_GCMP_256; 460 hw->wiphy->n_cipher_suites++; 461 } 462 463 if (iwlwifi_mod_params.swcrypto) 464 IWL_ERR(mvm, 465 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 466 if (!iwlwifi_mod_params.bt_coex_active) 467 IWL_ERR(mvm, 468 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 469 470 ieee80211_hw_set(hw, MFP_CAPABLE); 471 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 472 hw->wiphy->n_cipher_suites++; 473 if (iwl_mvm_has_new_rx_api(mvm)) { 474 mvm->ciphers[hw->wiphy->n_cipher_suites] = 475 WLAN_CIPHER_SUITE_BIP_GMAC_128; 476 hw->wiphy->n_cipher_suites++; 477 mvm->ciphers[hw->wiphy->n_cipher_suites] = 478 WLAN_CIPHER_SUITE_BIP_GMAC_256; 479 hw->wiphy->n_cipher_suites++; 480 } 481 482 wiphy_ext_feature_set(hw->wiphy, 483 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 484 wiphy_ext_feature_set(hw->wiphy, 485 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 486 487 if (fw_has_capa(&mvm->fw->ucode_capa, 488 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 489 wiphy_ext_feature_set(hw->wiphy, 490 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 491 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 492 } 493 494 if (sec_key_ver && 495 fw_has_capa(&mvm->fw->ucode_capa, 496 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 497 wiphy_ext_feature_set(hw->wiphy, 498 NL80211_EXT_FEATURE_BEACON_PROTECTION); 499 else if (fw_has_capa(&mvm->fw->ucode_capa, 500 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 501 wiphy_ext_feature_set(hw->wiphy, 502 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 503 504 if (fw_has_capa(&mvm->fw->ucode_capa, 505 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 506 hw->wiphy->hw_timestamp_max_peers = 1; 507 508 if (fw_has_capa(&mvm->fw->ucode_capa, 509 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 510 wiphy_ext_feature_set(hw->wiphy, 511 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 512 513 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 514 hw->wiphy->features |= 515 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 516 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 517 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 518 519 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 520 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 521 hw->chanctx_data_size = sizeof(u16); 522 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 523 524 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 525 BIT(NL80211_IFTYPE_P2P_CLIENT) | 526 BIT(NL80211_IFTYPE_AP) | 527 BIT(NL80211_IFTYPE_P2P_GO) | 528 BIT(NL80211_IFTYPE_P2P_DEVICE) | 529 BIT(NL80211_IFTYPE_ADHOC); 530 531 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 532 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 533 534 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 535 * the hw, preventing us to control which key(id) to use per MPDU. 536 * Till that's fixed we can't use Extended Key ID for the newer cards. 537 */ 538 if (!iwl_mvm_has_new_tx_api(mvm)) 539 wiphy_ext_feature_set(hw->wiphy, 540 NL80211_EXT_FEATURE_EXT_KEY_ID); 541 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 542 543 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 544 if (iwl_mvm_is_lar_supported(mvm)) 545 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 546 else 547 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 548 REGULATORY_DISABLE_BEACON_HINTS; 549 550 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 551 wiphy_ext_feature_set(hw->wiphy, 552 NL80211_EXT_FEATURE_DFS_CONCURRENT); 553 554 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 555 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 556 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 557 558 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 559 hw->wiphy->n_iface_combinations = 560 ARRAY_SIZE(iwl_mvm_iface_combinations); 561 562 hw->wiphy->max_remain_on_channel_duration = 10000; 563 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 564 565 /* Extract MAC address */ 566 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 567 hw->wiphy->addresses = mvm->addresses; 568 hw->wiphy->n_addresses = 1; 569 570 /* Extract additional MAC addresses if available */ 571 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 572 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 573 574 for (i = 1; i < num_mac; i++) { 575 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 576 ETH_ALEN); 577 mvm->addresses[i].addr[5]++; 578 hw->wiphy->n_addresses++; 579 } 580 581 iwl_mvm_reset_phy_ctxts(mvm); 582 583 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 584 585 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 586 587 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 588 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 589 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 590 591 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 592 mvm->max_scans = IWL_MAX_UMAC_SCANS; 593 else 594 mvm->max_scans = IWL_MAX_LMAC_SCANS; 595 596 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 597 hw->wiphy->bands[NL80211_BAND_2GHZ] = 598 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 599 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 600 hw->wiphy->bands[NL80211_BAND_5GHZ] = 601 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 602 603 if (fw_has_capa(&mvm->fw->ucode_capa, 604 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 605 fw_has_api(&mvm->fw->ucode_capa, 606 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 607 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 608 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 609 } 610 if (fw_has_capa(&mvm->fw->ucode_capa, 611 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 612 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 613 hw->wiphy->bands[NL80211_BAND_6GHZ] = 614 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 615 616 hw->wiphy->hw_version = mvm->trans->hw_id; 617 618 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 619 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 620 else 621 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 622 623 hw->wiphy->max_sched_scan_reqs = 1; 624 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 625 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 626 /* we create the 802.11 header and zero length SSID IE. */ 627 hw->wiphy->max_sched_scan_ie_len = 628 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 629 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 630 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 631 632 /* 633 * the firmware uses u8 for num of iterations, but 0xff is saved for 634 * infinite loop, so the maximum number of iterations is actually 254. 635 */ 636 hw->wiphy->max_sched_scan_plan_iterations = 254; 637 638 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 639 NL80211_FEATURE_LOW_PRIORITY_SCAN | 640 NL80211_FEATURE_P2P_GO_OPPPS | 641 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 642 NL80211_FEATURE_DYNAMIC_SMPS | 643 NL80211_FEATURE_STATIC_SMPS | 644 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 645 646 if (fw_has_capa(&mvm->fw->ucode_capa, 647 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 648 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 649 if (fw_has_capa(&mvm->fw->ucode_capa, 650 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 651 hw->wiphy->features |= NL80211_FEATURE_QUIET; 652 653 if (fw_has_capa(&mvm->fw->ucode_capa, 654 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 655 hw->wiphy->features |= 656 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 657 658 if (fw_has_capa(&mvm->fw->ucode_capa, 659 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 660 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 661 662 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 663 IWL_FW_CMD_VER_UNKNOWN) >= 3) 664 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 665 666 if (fw_has_api(&mvm->fw->ucode_capa, 667 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 668 wiphy_ext_feature_set(hw->wiphy, 669 NL80211_EXT_FEATURE_SCAN_START_TIME); 670 wiphy_ext_feature_set(hw->wiphy, 671 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 672 } 673 674 if (iwl_mvm_is_oce_supported(mvm)) { 675 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 676 677 wiphy_ext_feature_set(hw->wiphy, 678 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 679 wiphy_ext_feature_set(hw->wiphy, 680 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 681 wiphy_ext_feature_set(hw->wiphy, 682 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 683 684 /* Old firmware also supports probe deferral and suppression */ 685 if (scan_ver < 15) 686 wiphy_ext_feature_set(hw->wiphy, 687 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 688 } 689 690 hw->wiphy->iftype_ext_capab = NULL; 691 hw->wiphy->num_iftype_ext_capab = 0; 692 693 if (mvm->nvm_data->sku_cap_11ax_enable && 694 !iwlwifi_mod_params.disable_11ax) { 695 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 696 hw->wiphy->num_iftype_ext_capab = 697 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 698 699 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 700 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 701 } 702 703 if (iwl_fw_lookup_cmd_ver(mvm->fw, 704 WIDE_ID(DATA_PATH_GROUP, 705 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 706 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 707 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 708 709 if (!hw->wiphy->iftype_ext_capab) { 710 hw->wiphy->num_iftype_ext_capab = 1; 711 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 712 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 713 } else { 714 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 715 } 716 } 717 718 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 719 TOF_RANGE_REQ_CMD), 720 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 721 wiphy_ext_feature_set(hw->wiphy, 722 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 723 724 if (fw_has_capa(&mvm->fw->ucode_capa, 725 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 726 wiphy_ext_feature_set(hw->wiphy, 727 NL80211_EXT_FEATURE_SECURE_LTF); 728 } 729 730 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 731 732 ieee80211_hw_set(hw, DISALLOW_PUNCTURING_5GHZ); 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->cfg->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 /* If there is no sta, and it's not offchannel - send through AP */ 842 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 843 !offchannel) { 844 struct iwl_mvm_vif *mvmvif = 845 iwl_mvm_vif_from_mac80211(info->control.vif); 846 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 847 848 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 849 /* mac80211 holds rcu read lock */ 850 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 851 if (IS_ERR_OR_NULL(sta)) 852 goto drop; 853 } 854 } 855 856 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 857 !ieee80211_is_probe_resp(hdr->frame_control)) { 858 /* translate MLD addresses to LINK addresses */ 859 struct ieee80211_link_sta *link_sta = 860 rcu_dereference(tmp_sta->link[link_id]); 861 struct ieee80211_bss_conf *link_conf = 862 rcu_dereference(info->control.vif->link_conf[link_id]); 863 struct ieee80211_mgmt *mgmt; 864 865 if (WARN_ON(!link_sta || !link_conf)) 866 goto drop; 867 868 /* if sta is NULL, the frame is a management frame */ 869 mgmt = (void *)hdr; 870 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 871 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 872 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 873 } 874 875 iwl_mvm_tx_skb(mvm, skb, sta); 876 return; 877 drop: 878 ieee80211_free_txskb(hw, skb); 879 } 880 881 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 882 { 883 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 884 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 885 struct sk_buff *skb = NULL; 886 887 /* 888 * No need for threads to be pending here, they can leave the first 889 * taker all the work. 890 * 891 * mvmtxq->tx_request logic: 892 * 893 * If 0, no one is currently TXing, set to 1 to indicate current thread 894 * will now start TX and other threads should quit. 895 * 896 * If 1, another thread is currently TXing, set to 2 to indicate to 897 * that thread that there was another request. Since that request may 898 * have raced with the check whether the queue is empty, the TXing 899 * thread should check the queue's status one more time before leaving. 900 * This check is done in order to not leave any TX hanging in the queue 901 * until the next TX invocation (which may not even happen). 902 * 903 * If 2, another thread is currently TXing, and it will already double 904 * check the queue, so do nothing. 905 */ 906 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 907 return; 908 909 rcu_read_lock(); 910 do { 911 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 912 &mvmtxq->state) && 913 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 914 &mvmtxq->state) && 915 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, 916 &mvmtxq->state) && 917 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 918 skb = ieee80211_tx_dequeue(hw, txq); 919 920 if (!skb) { 921 if (txq->sta) 922 IWL_DEBUG_TX(mvm, 923 "TXQ of sta %pM tid %d is now empty\n", 924 txq->sta->addr, 925 txq->tid); 926 break; 927 } 928 929 iwl_mvm_tx_skb(mvm, skb, txq->sta); 930 } 931 } while (atomic_dec_return(&mvmtxq->tx_request)); 932 rcu_read_unlock(); 933 } 934 935 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 936 struct ieee80211_txq *txq) 937 { 938 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 939 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 940 941 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 942 !txq->sta) { 943 iwl_mvm_mac_itxq_xmit(hw, txq); 944 return; 945 } 946 947 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 948 * to handle any packets we leave on the txq now 949 */ 950 951 spin_lock_bh(&mvm->add_stream_lock); 952 /* The list is being deleted only after the queue is fully allocated. */ 953 if (list_empty(&mvmtxq->list) && 954 /* recheck under lock */ 955 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 956 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 957 schedule_work(&mvm->add_stream_wk); 958 } 959 spin_unlock_bh(&mvm->add_stream_lock); 960 } 961 962 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 963 do { \ 964 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 965 break; \ 966 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 967 } while (0) 968 969 static void 970 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 971 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 972 enum ieee80211_ampdu_mlme_action action) 973 { 974 struct iwl_fw_dbg_trigger_tlv *trig; 975 struct iwl_fw_dbg_trigger_ba *ba_trig; 976 977 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 978 FW_DBG_TRIGGER_BA); 979 if (!trig) 980 return; 981 982 ba_trig = (void *)trig->data; 983 984 switch (action) { 985 case IEEE80211_AMPDU_TX_OPERATIONAL: { 986 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 987 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 988 989 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 990 "TX AGG START: MAC %pM tid %d ssn %d\n", 991 sta->addr, tid, tid_data->ssn); 992 break; 993 } 994 case IEEE80211_AMPDU_TX_STOP_CONT: 995 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 996 "TX AGG STOP: MAC %pM tid %d\n", 997 sta->addr, tid); 998 break; 999 case IEEE80211_AMPDU_RX_START: 1000 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 1001 "RX AGG START: MAC %pM tid %d ssn %d\n", 1002 sta->addr, tid, rx_ba_ssn); 1003 break; 1004 case IEEE80211_AMPDU_RX_STOP: 1005 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 1006 "RX AGG STOP: MAC %pM tid %d\n", 1007 sta->addr, tid); 1008 break; 1009 default: 1010 break; 1011 } 1012 } 1013 1014 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1015 struct ieee80211_vif *vif, 1016 struct ieee80211_ampdu_params *params) 1017 { 1018 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1019 int ret; 1020 struct ieee80211_sta *sta = params->sta; 1021 enum ieee80211_ampdu_mlme_action action = params->action; 1022 u16 tid = params->tid; 1023 u16 *ssn = ¶ms->ssn; 1024 u16 buf_size = params->buf_size; 1025 bool amsdu = params->amsdu; 1026 u16 timeout = params->timeout; 1027 1028 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1029 sta->addr, tid, action); 1030 1031 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1032 return -EACCES; 1033 1034 mutex_lock(&mvm->mutex); 1035 1036 switch (action) { 1037 case IEEE80211_AMPDU_RX_START: 1038 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1039 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1040 struct iwl_mvm_vif *mvmvif; 1041 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1042 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1043 1044 mdata->opened_rx_ba_sessions = true; 1045 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1046 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1047 } 1048 if (!iwl_enable_rx_ampdu()) { 1049 ret = -EINVAL; 1050 break; 1051 } 1052 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1053 timeout); 1054 break; 1055 case IEEE80211_AMPDU_RX_STOP: 1056 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1057 timeout); 1058 break; 1059 case IEEE80211_AMPDU_TX_START: 1060 if (!iwl_enable_tx_ampdu()) { 1061 ret = -EINVAL; 1062 break; 1063 } 1064 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1065 break; 1066 case IEEE80211_AMPDU_TX_STOP_CONT: 1067 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1068 break; 1069 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1070 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1071 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1072 break; 1073 case IEEE80211_AMPDU_TX_OPERATIONAL: 1074 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1075 buf_size, amsdu); 1076 break; 1077 default: 1078 WARN_ON_ONCE(1); 1079 ret = -EINVAL; 1080 break; 1081 } 1082 1083 if (!ret) { 1084 u16 rx_ba_ssn = 0; 1085 1086 if (action == IEEE80211_AMPDU_RX_START) 1087 rx_ba_ssn = *ssn; 1088 1089 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1090 rx_ba_ssn, action); 1091 } 1092 mutex_unlock(&mvm->mutex); 1093 1094 return ret; 1095 } 1096 1097 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1098 struct ieee80211_vif *vif) 1099 { 1100 struct iwl_mvm *mvm = data; 1101 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1102 struct iwl_probe_resp_data *probe_data; 1103 unsigned int link_id; 1104 1105 mvmvif->uploaded = false; 1106 1107 spin_lock_bh(&mvm->time_event_lock); 1108 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1109 spin_unlock_bh(&mvm->time_event_lock); 1110 1111 mvmvif->roc_activity = ROC_NUM_ACTIVITIES; 1112 1113 mvmvif->bf_enabled = false; 1114 mvmvif->ba_enabled = false; 1115 mvmvif->ap_sta = NULL; 1116 1117 mvmvif->esr_active = false; 1118 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE; 1119 1120 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1121 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1122 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1123 mvmvif->link[link_id]->phy_ctxt = NULL; 1124 mvmvif->link[link_id]->active = 0; 1125 mvmvif->link[link_id]->igtk = NULL; 1126 memset(&mvmvif->link[link_id]->bf_data, 0, 1127 sizeof(mvmvif->link[link_id]->bf_data)); 1128 } 1129 1130 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1131 lockdep_is_held(&mvm->mutex)); 1132 if (probe_data) 1133 kfree_rcu(probe_data, rcu_head); 1134 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1135 } 1136 1137 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1138 { 1139 struct iwl_mvm *mvm = data; 1140 struct iwl_mvm_sta *mvm_sta; 1141 struct ieee80211_vif *vif; 1142 int link_id; 1143 1144 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1145 vif = mvm_sta->vif; 1146 1147 if (!sta->valid_links) 1148 return; 1149 1150 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1151 struct iwl_mvm_link_sta *mvm_link_sta; 1152 1153 mvm_link_sta = 1154 rcu_dereference_check(mvm_sta->link[link_id], 1155 lockdep_is_held(&mvm->mutex)); 1156 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1157 /* 1158 * We have a link STA but the link is inactive in 1159 * mac80211. This will happen if we failed to 1160 * deactivate the link but mac80211 roll back the 1161 * deactivation of the link. 1162 * Delete the stale data to avoid issues later on. 1163 */ 1164 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1165 link_id, false); 1166 } 1167 } 1168 } 1169 1170 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1171 { 1172 iwl_mvm_stop_device(mvm); 1173 1174 mvm->cur_aid = 0; 1175 1176 mvm->scan_status = 0; 1177 mvm->ps_disabled = false; 1178 mvm->rfkill_safe_init_done = false; 1179 1180 /* just in case one was running */ 1181 iwl_mvm_cleanup_roc_te(mvm); 1182 ieee80211_remain_on_channel_expired(mvm->hw); 1183 1184 iwl_mvm_ftm_restart(mvm); 1185 1186 /* 1187 * cleanup all interfaces, even inactive ones, as some might have 1188 * gone down during the HW restart 1189 */ 1190 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1191 1192 /* cleanup stations as links may be gone after restart */ 1193 ieee80211_iterate_stations_atomic(mvm->hw, 1194 iwl_mvm_cleanup_sta_iterator, mvm); 1195 1196 mvm->p2p_device_vif = NULL; 1197 1198 iwl_mvm_reset_phy_ctxts(mvm); 1199 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1200 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1201 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1202 1203 ieee80211_wake_queues(mvm->hw); 1204 1205 mvm->rx_ba_sessions = 0; 1206 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1207 mvm->monitor_on = false; 1208 #ifdef CONFIG_IWLWIFI_DEBUGFS 1209 mvm->beacon_inject_active = false; 1210 #endif 1211 1212 /* keep statistics ticking */ 1213 iwl_mvm_accu_radio_stats(mvm); 1214 } 1215 1216 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1217 { 1218 bool fast_resume = false; 1219 int ret; 1220 1221 lockdep_assert_held(&mvm->mutex); 1222 1223 ret = iwl_mvm_mei_get_ownership(mvm); 1224 if (ret) 1225 return ret; 1226 1227 if (mvm->mei_nvm_data) { 1228 /* We got the NIC, we can now free the MEI NVM data */ 1229 kfree(mvm->mei_nvm_data); 1230 mvm->mei_nvm_data = NULL; 1231 1232 /* 1233 * We can't free the nvm_data we allocated based on the SAP 1234 * data because we registered to cfg80211 with the channels 1235 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1236 * just in order to be able free it later. 1237 * NULLify nvm_data so that we will read the NVM from the 1238 * firmware this time. 1239 */ 1240 mvm->temp_nvm_data = mvm->nvm_data; 1241 mvm->nvm_data = NULL; 1242 } 1243 1244 #ifdef CONFIG_PM 1245 /* fast_resume will be cleared by iwl_mvm_fast_resume */ 1246 fast_resume = mvm->fast_resume; 1247 1248 if (fast_resume) { 1249 ret = iwl_mvm_fast_resume(mvm); 1250 if (ret) { 1251 iwl_mvm_stop_device(mvm); 1252 /* iwl_mvm_up() will be called further down */ 1253 } else { 1254 /* 1255 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon 1256 * mac_down() so that debugfs will stop honoring 1257 * requests after we flush all the workers. 1258 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again 1259 * now that we are back. This is a bit abusing the 1260 * flag since the firmware wasn't really ever stopped, 1261 * but this still serves the purpose. 1262 */ 1263 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1264 } 1265 } 1266 #endif /* CONFIG_PM */ 1267 1268 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1269 /* 1270 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1271 * so later code will - from now on - see that we're doing it. 1272 */ 1273 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1274 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1275 /* Clean up some internal and mac80211 state on restart */ 1276 iwl_mvm_restart_cleanup(mvm); 1277 } 1278 1279 /* we also want to load the firmware if fast_resume failed */ 1280 if (!fast_resume || ret) 1281 ret = iwl_mvm_up(mvm); 1282 1283 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1284 NULL); 1285 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1286 NULL); 1287 1288 mvm->last_reset_or_resume_time_jiffies = jiffies; 1289 1290 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1291 /* Something went wrong - we need to finish some cleanup 1292 * that normally iwl_mvm_mac_restart_complete() below 1293 * would do. 1294 */ 1295 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1296 } 1297 1298 return ret; 1299 } 1300 1301 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1302 { 1303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1304 int ret; 1305 1306 mutex_lock(&mvm->mutex); 1307 1308 /* we are starting the mac not in error flow, and restart is enabled */ 1309 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1310 iwlwifi_mod_params.fw_restart) { 1311 /* 1312 * This will prevent mac80211 recovery flows to trigger during 1313 * init failures 1314 */ 1315 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1316 } 1317 1318 ret = __iwl_mvm_mac_start(mvm); 1319 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1320 1321 mutex_unlock(&mvm->mutex); 1322 1323 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1324 1325 return ret; 1326 } 1327 1328 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1329 { 1330 int ret; 1331 1332 guard(mvm)(mvm); 1333 1334 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1335 1336 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1337 if (ret) 1338 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1339 ret); 1340 1341 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1342 1343 /* 1344 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1345 * of packets the FW sent out, so we must reconnect. 1346 */ 1347 iwl_mvm_teardown_tdls_peers(mvm); 1348 } 1349 1350 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1351 enum ieee80211_reconfig_type reconfig_type) 1352 { 1353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1354 1355 switch (reconfig_type) { 1356 case IEEE80211_RECONFIG_TYPE_RESTART: 1357 iwl_mvm_restart_complete(mvm); 1358 break; 1359 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1360 break; 1361 } 1362 } 1363 1364 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend) 1365 { 1366 lockdep_assert_held(&mvm->mutex); 1367 1368 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1369 1370 /* firmware counters are obviously reset now, but we shouldn't 1371 * partially track so also clear the fw_reset_accu counters. 1372 */ 1373 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1374 1375 /* async_handlers_wk is now blocked */ 1376 1377 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1378 iwl_mvm_rm_aux_sta(mvm); 1379 1380 if (suspend && 1381 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 1382 iwl_mvm_fast_suspend(mvm); 1383 else 1384 iwl_mvm_stop_device(mvm); 1385 1386 iwl_mvm_async_handlers_purge(mvm); 1387 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1388 1389 /* 1390 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1391 * hw (as restart_complete() won't be called in this case) and mac80211 1392 * won't execute the restart. 1393 * But make sure to cleanup interfaces that have gone down before/during 1394 * HW restart was requested. 1395 */ 1396 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1397 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1398 &mvm->status)) 1399 ieee80211_iterate_interfaces(mvm->hw, 0, 1400 iwl_mvm_cleanup_iterator, mvm); 1401 1402 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1403 * make sure there's nothing left there and warn if any is found. 1404 */ 1405 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1406 int i; 1407 1408 for (i = 0; i < mvm->max_scans; i++) { 1409 if (WARN_ONCE(mvm->scan_uid_status[i], 1410 "UMAC scan UID %d status was not cleaned\n", 1411 i)) 1412 mvm->scan_uid_status[i] = 0; 1413 } 1414 } 1415 } 1416 1417 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend) 1418 { 1419 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1420 1421 /* Stop internal MLO scan, if running */ 1422 mutex_lock(&mvm->mutex); 1423 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1424 mutex_unlock(&mvm->mutex); 1425 1426 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk); 1427 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1428 flush_work(&mvm->async_handlers_wk); 1429 flush_work(&mvm->add_stream_wk); 1430 1431 /* 1432 * Lock and clear the firmware running bit here already, so that 1433 * new commands coming in elsewhere, e.g. from debugfs, will not 1434 * be able to proceed. This is important here because one of those 1435 * debugfs files causes the firmware dump to be triggered, and if we 1436 * don't stop debugfs accesses before canceling that it could be 1437 * retriggered after we flush it but before we've cleared the bit. 1438 */ 1439 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1440 1441 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1442 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1443 1444 /* 1445 * The work item could be running or queued if the 1446 * ROC time event stops just as we get here. 1447 */ 1448 flush_work(&mvm->roc_done_wk); 1449 1450 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1451 1452 mutex_lock(&mvm->mutex); 1453 __iwl_mvm_mac_stop(mvm, suspend); 1454 mutex_unlock(&mvm->mutex); 1455 1456 /* 1457 * The worker might have been waiting for the mutex, let it run and 1458 * discover that its list is now empty. 1459 */ 1460 cancel_work_sync(&mvm->async_handlers_wk); 1461 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1462 } 1463 1464 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1465 { 1466 u16 i; 1467 1468 lockdep_assert_held(&mvm->mutex); 1469 1470 for (i = 0; i < NUM_PHY_CTX; i++) 1471 if (!mvm->phy_ctxts[i].ref) 1472 return &mvm->phy_ctxts[i]; 1473 1474 IWL_ERR(mvm, "No available PHY context\n"); 1475 return NULL; 1476 } 1477 1478 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1479 s16 tx_power) 1480 { 1481 u32 cmd_id = REDUCE_TX_POWER_CMD; 1482 int len; 1483 struct iwl_dev_tx_power_cmd cmd = { 1484 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1485 .common.mac_context_id = 1486 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1487 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1488 }; 1489 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1490 IWL_FW_CMD_VER_UNKNOWN); 1491 1492 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1493 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1494 1495 if (cmd_ver == 8) 1496 len = sizeof(cmd.v8); 1497 else if (cmd_ver == 7) 1498 len = sizeof(cmd.v7); 1499 else if (cmd_ver == 6) 1500 len = sizeof(cmd.v6); 1501 else if (fw_has_api(&mvm->fw->ucode_capa, 1502 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1503 len = sizeof(cmd.v5); 1504 else if (fw_has_capa(&mvm->fw->ucode_capa, 1505 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1506 len = sizeof(cmd.v4); 1507 else 1508 len = sizeof(cmd.v3); 1509 1510 /* all structs have the same common part, add it */ 1511 len += sizeof(cmd.common); 1512 1513 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1514 } 1515 1516 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1517 { 1518 struct ieee80211_hw *hw = data; 1519 int i; 1520 1521 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1522 struct iwl_mvm_txq *mvmtxq = 1523 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1524 1525 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1526 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1527 } 1528 } 1529 1530 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1531 struct ieee80211_vif *vif, 1532 struct ieee80211_bss_conf *link_conf) 1533 { 1534 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1536 int ret; 1537 1538 mutex_lock(&mvm->mutex); 1539 1540 if (vif->type == NL80211_IFTYPE_STATION) { 1541 struct iwl_mvm_sta *mvmsta; 1542 unsigned int link_id = link_conf->link_id; 1543 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1544 1545 mvmvif->csa_bcn_pending = false; 1546 mvmvif->csa_blocks_tx = false; 1547 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1548 1549 if (WARN_ON(!mvmsta)) { 1550 ret = -EIO; 1551 goto out_unlock; 1552 } 1553 1554 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1555 if (mvm->mld_api_is_used) 1556 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1557 else 1558 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1559 1560 if (!fw_has_capa(&mvm->fw->ucode_capa, 1561 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1562 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1563 if (ret) 1564 goto out_unlock; 1565 1566 iwl_mvm_stop_session_protection(mvm, vif); 1567 } 1568 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1569 struct iwl_mvm_txq *mvmtxq = 1570 iwl_mvm_txq_from_mac80211(vif->txq); 1571 1572 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1573 1574 local_bh_disable(); 1575 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1576 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1577 local_bh_enable(); 1578 1579 mvmvif->csa_blocks_tx = false; 1580 } 1581 1582 mvmvif->ps_disabled = false; 1583 1584 ret = iwl_mvm_power_update_ps(mvm); 1585 1586 out_unlock: 1587 if (mvmvif->csa_failed) 1588 ret = -EIO; 1589 mutex_unlock(&mvm->mutex); 1590 1591 return ret; 1592 } 1593 1594 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1595 struct ieee80211_vif *vif, 1596 struct ieee80211_bss_conf *link_conf) 1597 { 1598 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1599 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1600 struct iwl_chan_switch_te_cmd cmd = { 1601 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1602 mvmvif->color)), 1603 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1604 }; 1605 1606 /* 1607 * In the new flow since FW is in charge of the timing, 1608 * if driver has canceled the channel switch he will receive the 1609 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1610 */ 1611 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1612 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1613 return; 1614 1615 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1616 1617 mutex_lock(&mvm->mutex); 1618 if (!fw_has_capa(&mvm->fw->ucode_capa, 1619 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1620 iwl_mvm_remove_csa_period(mvm, vif); 1621 else 1622 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1623 WIDE_ID(MAC_CONF_GROUP, 1624 CHANNEL_SWITCH_TIME_EVENT_CMD), 1625 0, sizeof(cmd), &cmd)); 1626 mvmvif->csa_failed = true; 1627 mutex_unlock(&mvm->mutex); 1628 1629 /* If we're here, we can't support MLD */ 1630 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1631 } 1632 1633 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1634 { 1635 struct iwl_mvm_vif *mvmvif; 1636 struct ieee80211_vif *vif; 1637 1638 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1639 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1640 1641 /* Trigger disconnect (should clear the CSA state) */ 1642 ieee80211_chswitch_done(vif, false, 0); 1643 } 1644 1645 static u8 1646 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1647 { 1648 int data_start; 1649 int control_start; 1650 int bw; 1651 1652 if (chandef->width == NL80211_CHAN_WIDTH_320) 1653 bw = 320; 1654 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1655 bw = 160; 1656 else 1657 return 0; 1658 1659 /* data is bw wide so the start is half the width */ 1660 data_start = chandef->center_freq1 - bw / 2; 1661 /* control is 20Mhz width */ 1662 control_start = chandef->chan->center_freq - 10; 1663 1664 return (control_start - data_start) / 80; 1665 } 1666 1667 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1668 struct ieee80211_vif *vif) 1669 { 1670 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1671 int ret; 1672 1673 lockdep_assert_held(&mvm->mutex); 1674 1675 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1676 if (ret) { 1677 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1678 return ret; 1679 } 1680 1681 /* Only queue for this station is the mcast queue, 1682 * which shouldn't be in TFD mask anyway 1683 */ 1684 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1685 vif->type, 1686 IWL_STA_MULTICAST); 1687 } 1688 1689 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy, 1690 struct wiphy_work *wk) 1691 { 1692 struct iwl_mvm_vif *mvmvif = 1693 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work); 1694 struct iwl_mvm *mvm = mvmvif->mvm; 1695 struct ieee80211_vif *vif = 1696 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1697 1698 guard(mvm)(mvm); 1699 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION); 1700 } 1701 1702 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) 1703 { 1704 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif, 1705 mlo_int_scan_wk.work); 1706 struct ieee80211_vif *vif = 1707 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1708 1709 guard(mvm)(mvmvif->mvm); 1710 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif); 1711 } 1712 1713 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) 1714 { 1715 struct iwl_mvm_vif *mvmvif = 1716 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); 1717 struct iwl_mvm *mvm = mvmvif->mvm; 1718 struct ieee80211_vif *vif = 1719 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1720 1721 guard(mvm)(mvm); 1722 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); 1723 } 1724 1725 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1726 { 1727 lockdep_assert_held(&mvm->mutex); 1728 1729 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1730 return; 1731 1732 INIT_DELAYED_WORK(&mvmvif->csa_work, 1733 iwl_mvm_channel_switch_disconnect_wk); 1734 1735 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk, 1736 iwl_mvm_prevent_esr_done_wk); 1737 1738 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, 1739 iwl_mvm_mlo_int_scan_wk); 1740 1741 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, 1742 iwl_mvm_unblock_esr_tpt); 1743 } 1744 1745 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1746 struct ieee80211_vif *vif) 1747 { 1748 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1749 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1750 int ret; 1751 int i; 1752 1753 mutex_lock(&mvm->mutex); 1754 1755 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1756 1757 mvmvif->mvm = mvm; 1758 1759 /* the first link always points to the default one */ 1760 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1761 mvmvif->deflink.active = 0; 1762 mvmvif->link[0] = &mvmvif->deflink; 1763 1764 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1765 if (ret) 1766 goto out; 1767 1768 /* 1769 * Not much to do here. The stack will not allow interface 1770 * types or combinations that we didn't advertise, so we 1771 * don't really have to check the types. 1772 */ 1773 1774 /* make sure that beacon statistics don't go backwards with FW reset */ 1775 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1776 for_each_mvm_vif_valid_link(mvmvif, i) 1777 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1778 mvmvif->link[i]->beacon_stats.num_beacons; 1779 1780 /* Allocate resources for the MAC context, and add it to the fw */ 1781 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1782 if (ret) 1783 goto out; 1784 1785 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1786 1787 /* Currently not much to do for NAN */ 1788 if (vif->type == NL80211_IFTYPE_NAN) { 1789 ret = 0; 1790 goto out; 1791 } 1792 1793 /* 1794 * The AP binding flow can be done only after the beacon 1795 * template is configured (which happens only in the mac80211 1796 * start_ap() flow), and adding the broadcast station can happen 1797 * only after the binding. 1798 * In addition, since modifying the MAC before adding a bcast 1799 * station is not allowed by the FW, delay the adding of MAC context to 1800 * the point where we can also add the bcast station. 1801 * In short: there's not much we can do at this point, other than 1802 * allocating resources :) 1803 */ 1804 if (vif->type == NL80211_IFTYPE_AP || 1805 vif->type == NL80211_IFTYPE_ADHOC) { 1806 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1807 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1808 ret = 0; 1809 goto out; 1810 } 1811 1812 mvmvif->features |= hw->netdev_features; 1813 1814 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1815 if (ret) 1816 goto out_unlock; 1817 1818 ret = iwl_mvm_power_update_mac(mvm); 1819 if (ret) 1820 goto out_remove_mac; 1821 1822 /* beacon filtering */ 1823 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1824 if (ret) 1825 goto out_remove_mac; 1826 1827 if (!mvm->bf_allowed_vif && 1828 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1829 mvm->bf_allowed_vif = mvmvif; 1830 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1831 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1832 } 1833 1834 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1835 mvm->p2p_device_vif = vif; 1836 1837 iwl_mvm_tcm_add_vif(mvm, vif); 1838 1839 if (vif->type == NL80211_IFTYPE_MONITOR) { 1840 mvm->monitor_on = true; 1841 mvm->monitor_p80 = 1842 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1843 } 1844 1845 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1846 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1847 1848 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1849 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1850 !mvm->csme_vif && mvm->mei_registered) { 1851 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1852 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1853 mvm->csme_vif = vif; 1854 } 1855 1856 out: 1857 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1858 vif->type == NL80211_IFTYPE_ADHOC)) 1859 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1860 1861 goto out_unlock; 1862 1863 out_remove_mac: 1864 mvmvif->deflink.phy_ctxt = NULL; 1865 iwl_mvm_mac_ctxt_remove(mvm, vif); 1866 out_unlock: 1867 mutex_unlock(&mvm->mutex); 1868 1869 return ret; 1870 } 1871 1872 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1873 struct ieee80211_vif *vif) 1874 { 1875 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1876 1877 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1878 /* 1879 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1880 * We assume here that all the packets sent to the OFFCHANNEL 1881 * queue are sent in ROC session. 1882 */ 1883 flush_work(&mvm->roc_done_wk); 1884 } 1885 1886 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1887 &mvmvif->prevent_esr_done_wk); 1888 1889 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1890 &mvmvif->mlo_int_scan_wk); 1891 1892 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 1893 1894 cancel_delayed_work_sync(&mvmvif->csa_work); 1895 } 1896 1897 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1898 struct ieee80211_vif *vif) 1899 { 1900 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1901 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1902 struct iwl_probe_resp_data *probe_data; 1903 1904 iwl_mvm_prepare_mac_removal(mvm, vif); 1905 1906 if (!(vif->type == NL80211_IFTYPE_AP || 1907 vif->type == NL80211_IFTYPE_ADHOC)) 1908 iwl_mvm_tcm_rm_vif(mvm, vif); 1909 1910 mutex_lock(&mvm->mutex); 1911 1912 if (vif == mvm->csme_vif) { 1913 iwl_mei_set_netdev(NULL); 1914 mvm->csme_vif = NULL; 1915 } 1916 1917 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1918 lockdep_is_held(&mvm->mutex)); 1919 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1920 if (probe_data) 1921 kfree_rcu(probe_data, rcu_head); 1922 1923 if (mvm->bf_allowed_vif == mvmvif) { 1924 mvm->bf_allowed_vif = NULL; 1925 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1926 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1927 } 1928 1929 if (vif->bss_conf.ftm_responder) 1930 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1931 1932 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1933 1934 /* 1935 * For AP/GO interface, the tear down of the resources allocated to the 1936 * interface is be handled as part of the stop_ap flow. 1937 */ 1938 if (vif->type == NL80211_IFTYPE_AP || 1939 vif->type == NL80211_IFTYPE_ADHOC) { 1940 #ifdef CONFIG_NL80211_TESTMODE 1941 if (vif == mvm->noa_vif) { 1942 mvm->noa_vif = NULL; 1943 mvm->noa_duration = 0; 1944 } 1945 #endif 1946 goto out; 1947 } 1948 1949 iwl_mvm_power_update_mac(mvm); 1950 1951 /* Before the interface removal, mac80211 would cancel the ROC, and the 1952 * ROC worker would be scheduled if needed. The worker would be flushed 1953 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1954 * binding etc. so nothing needs to be done here. 1955 */ 1956 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1957 if (mvmvif->deflink.phy_ctxt) { 1958 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1959 mvmvif->deflink.phy_ctxt = NULL; 1960 } 1961 mvm->p2p_device_vif = NULL; 1962 } 1963 1964 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 1965 iwl_mvm_mac_ctxt_remove(mvm, vif); 1966 1967 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1968 1969 if (vif->type == NL80211_IFTYPE_MONITOR) 1970 mvm->monitor_on = false; 1971 1972 out: 1973 if (vif->type == NL80211_IFTYPE_AP || 1974 vif->type == NL80211_IFTYPE_ADHOC) { 1975 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1976 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1977 } 1978 1979 mutex_unlock(&mvm->mutex); 1980 } 1981 1982 struct iwl_mvm_mc_iter_data { 1983 struct iwl_mvm *mvm; 1984 int port_id; 1985 }; 1986 1987 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1988 struct ieee80211_vif *vif) 1989 { 1990 struct iwl_mvm_mc_iter_data *data = _data; 1991 struct iwl_mvm *mvm = data->mvm; 1992 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1993 struct iwl_host_cmd hcmd = { 1994 .id = MCAST_FILTER_CMD, 1995 .flags = CMD_ASYNC, 1996 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1997 }; 1998 int ret, len; 1999 2000 /* if we don't have free ports, mcast frames will be dropped */ 2001 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 2002 return; 2003 2004 if (vif->type != NL80211_IFTYPE_STATION || 2005 !vif->cfg.assoc) 2006 return; 2007 2008 cmd->port_id = data->port_id++; 2009 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 2010 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 2011 2012 hcmd.len[0] = len; 2013 hcmd.data[0] = cmd; 2014 2015 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2016 if (ret) 2017 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 2018 } 2019 2020 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 2021 { 2022 struct iwl_mvm_mc_iter_data iter_data = { 2023 .mvm = mvm, 2024 }; 2025 int ret; 2026 2027 lockdep_assert_held(&mvm->mutex); 2028 2029 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 2030 return; 2031 2032 ieee80211_iterate_active_interfaces_atomic( 2033 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2034 iwl_mvm_mc_iface_iterator, &iter_data); 2035 2036 /* 2037 * Send a (synchronous) ech command so that we wait for the 2038 * multiple asynchronous MCAST_FILTER_CMD commands sent by 2039 * the interface iterator. Otherwise, we might get here over 2040 * and over again (by userspace just sending a lot of these) 2041 * and the CPU can send them faster than the firmware can 2042 * process them. 2043 * Note that the CPU is still faster - but with this we'll 2044 * actually send fewer commands overall because the CPU will 2045 * not schedule the work in mac80211 as frequently if it's 2046 * still running when rescheduled (possibly multiple times). 2047 */ 2048 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2049 if (ret) 2050 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2051 } 2052 2053 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2054 struct netdev_hw_addr_list *mc_list) 2055 { 2056 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2057 struct iwl_mcast_filter_cmd *cmd; 2058 struct netdev_hw_addr *addr; 2059 int addr_count; 2060 bool pass_all; 2061 int len; 2062 2063 addr_count = netdev_hw_addr_list_count(mc_list); 2064 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2065 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2066 if (pass_all) 2067 addr_count = 0; 2068 2069 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2070 cmd = kzalloc(len, GFP_ATOMIC); 2071 if (!cmd) 2072 return 0; 2073 2074 if (pass_all) { 2075 cmd->pass_all = 1; 2076 return (u64)(unsigned long)cmd; 2077 } 2078 2079 netdev_hw_addr_list_for_each(addr, mc_list) { 2080 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2081 cmd->count, addr->addr); 2082 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2083 addr->addr, ETH_ALEN); 2084 cmd->count++; 2085 } 2086 2087 return (u64)(unsigned long)cmd; 2088 } 2089 2090 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2091 unsigned int changed_flags, 2092 unsigned int *total_flags, u64 multicast) 2093 { 2094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2095 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2096 2097 guard(mvm)(mvm); 2098 2099 /* replace previous configuration */ 2100 kfree(mvm->mcast_filter_cmd); 2101 mvm->mcast_filter_cmd = cmd; 2102 2103 if (!cmd) 2104 goto out; 2105 2106 if (changed_flags & FIF_ALLMULTI) 2107 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2108 2109 if (cmd->pass_all) 2110 cmd->count = 0; 2111 2112 iwl_mvm_recalc_multicast(mvm); 2113 out: 2114 *total_flags = 0; 2115 } 2116 2117 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2118 struct ieee80211_vif *vif, 2119 unsigned int filter_flags, 2120 unsigned int changed_flags) 2121 { 2122 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2123 2124 /* We support only filter for probe requests */ 2125 if (!(changed_flags & FIF_PROBE_REQ)) 2126 return; 2127 2128 /* Supported only for p2p client interfaces */ 2129 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2130 !vif->p2p) 2131 return; 2132 2133 guard(mvm)(mvm); 2134 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2135 } 2136 2137 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2138 { 2139 struct iwl_mu_group_mgmt_cmd cmd = {}; 2140 2141 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2142 WLAN_MEMBERSHIP_LEN); 2143 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2144 WLAN_USER_POSITION_LEN); 2145 2146 return iwl_mvm_send_cmd_pdu(mvm, 2147 WIDE_ID(DATA_PATH_GROUP, 2148 UPDATE_MU_GROUPS_CMD), 2149 0, sizeof(cmd), &cmd); 2150 } 2151 2152 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2153 struct ieee80211_vif *vif) 2154 { 2155 if (vif->bss_conf.mu_mimo_owner) { 2156 struct iwl_mu_group_mgmt_notif *notif = _data; 2157 2158 /* 2159 * MU-MIMO Group Id action frame is little endian. We treat 2160 * the data received from firmware as if it came from the 2161 * action frame, so no conversion is needed. 2162 */ 2163 ieee80211_update_mu_groups(vif, 0, 2164 (u8 *)¬if->membership_status, 2165 (u8 *)¬if->user_position); 2166 } 2167 } 2168 2169 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2170 struct iwl_rx_cmd_buffer *rxb) 2171 { 2172 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2173 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2174 2175 ieee80211_iterate_active_interfaces_atomic( 2176 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2177 iwl_mvm_mu_mimo_iface_iterator, notif); 2178 } 2179 2180 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2181 { 2182 u8 byte_num = ppe_pos_bit / 8; 2183 u8 bit_num = ppe_pos_bit % 8; 2184 u8 residue_bits; 2185 u8 res; 2186 2187 if (bit_num <= 5) 2188 return (ppe[byte_num] >> bit_num) & 2189 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2190 2191 /* 2192 * If bit_num > 5, we have to combine bits with next byte. 2193 * Calculate how many bits we need to take from current byte (called 2194 * here "residue_bits"), and add them to bits from next byte. 2195 */ 2196 2197 residue_bits = 8 - bit_num; 2198 2199 res = (ppe[byte_num + 1] & 2200 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2201 residue_bits; 2202 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2203 2204 return res; 2205 } 2206 2207 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2208 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2209 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2210 bool inheritance) 2211 { 2212 int i; 2213 2214 /* 2215 * FW currently supports only nss == MAX_HE_SUPP_NSS 2216 * 2217 * If nss > MAX: we can ignore values we don't support 2218 * If nss < MAX: we can set zeros in other streams 2219 */ 2220 if (nss > MAX_HE_SUPP_NSS) { 2221 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2222 MAX_HE_SUPP_NSS); 2223 nss = MAX_HE_SUPP_NSS; 2224 } 2225 2226 for (i = 0; i < nss; i++) { 2227 u8 ru_index_tmp = ru_index_bitmap << 1; 2228 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2229 u8 bw; 2230 2231 for (bw = 0; 2232 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2233 bw++) { 2234 ru_index_tmp >>= 1; 2235 2236 /* 2237 * According to the 11be spec, if for a specific BW the PPE Thresholds 2238 * isn't present - it should inherit the thresholds from the last 2239 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2240 * this inheritance - continue in this case 2241 */ 2242 if (!(ru_index_tmp & 1)) { 2243 if (inheritance) 2244 goto set_thresholds; 2245 else 2246 continue; 2247 } 2248 2249 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2250 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2251 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2252 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2253 2254 set_thresholds: 2255 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2256 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2257 } 2258 } 2259 } 2260 2261 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2262 struct ieee80211_link_sta *link_sta, 2263 struct iwl_he_pkt_ext_v2 *pkt_ext, 2264 bool inheritance) 2265 { 2266 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2267 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2268 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2269 u8 ru_index_bitmap = 2270 u8_get_bits(*ppe, 2271 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2272 /* Starting after PPE header */ 2273 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2274 2275 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2276 inheritance); 2277 } 2278 2279 static int 2280 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2281 u8 nominal_padding) 2282 { 2283 int low_th = -1; 2284 int high_th = -1; 2285 int i; 2286 2287 /* all the macros are the same for EHT and HE */ 2288 switch (nominal_padding) { 2289 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2290 low_th = IWL_HE_PKT_EXT_NONE; 2291 high_th = IWL_HE_PKT_EXT_NONE; 2292 break; 2293 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2294 low_th = IWL_HE_PKT_EXT_BPSK; 2295 high_th = IWL_HE_PKT_EXT_NONE; 2296 break; 2297 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2298 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2299 low_th = IWL_HE_PKT_EXT_NONE; 2300 high_th = IWL_HE_PKT_EXT_BPSK; 2301 break; 2302 } 2303 2304 if (low_th < 0 || high_th < 0) 2305 return -EINVAL; 2306 2307 /* Set the PPE thresholds accordingly */ 2308 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2309 u8 bw; 2310 2311 for (bw = 0; 2312 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2313 bw++) { 2314 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2315 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2316 } 2317 } 2318 2319 return 0; 2320 } 2321 2322 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2323 u8 nominal_padding) 2324 { 2325 int i; 2326 2327 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2328 u8 bw; 2329 2330 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2331 bw++) { 2332 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2333 2334 if (nominal_padding > 2335 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2336 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2337 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2338 else if (nominal_padding == 2339 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2340 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2341 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2342 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2343 } 2344 } 2345 } 2346 2347 /* Set the pkt_ext field according to PPE Thresholds element */ 2348 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2349 struct ieee80211_link_sta *link_sta, 2350 struct iwl_he_pkt_ext_v2 *pkt_ext) 2351 { 2352 u8 nominal_padding; 2353 int i, ret = 0; 2354 2355 if (WARN_ON(!link_sta)) 2356 return -EINVAL; 2357 2358 /* Initialize the PPE thresholds to "None" (7), as described in Table 2359 * 9-262ac of 80211.ax/D3.0. 2360 */ 2361 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2362 sizeof(struct iwl_he_pkt_ext_v2)); 2363 2364 if (link_sta->eht_cap.has_eht) { 2365 nominal_padding = 2366 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2367 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2368 2369 /* If PPE Thresholds exists, parse them into a FW-familiar 2370 * format. 2371 */ 2372 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2373 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2374 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2375 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2376 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2377 u8 ru_index_bitmap = 2378 u16_get_bits(*ppe, 2379 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2380 /* Starting after PPE header */ 2381 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2382 2383 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2384 ppe, ppe_pos_bit, true); 2385 /* EHT PPE Thresholds doesn't exist - set the API according to 2386 * HE PPE Tresholds 2387 */ 2388 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2389 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2390 /* Even though HE Capabilities IE doesn't contain PPE 2391 * Thresholds for BW 320Mhz, thresholds for this BW will 2392 * be filled in with the same values as 160Mhz, due to 2393 * the inheritance, as required. 2394 */ 2395 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2396 true); 2397 2398 /* According to the requirements, for MCSs 12-13 the 2399 * maximum value between HE PPE Threshold and Common 2400 * Nominal Packet Padding needs to be taken 2401 */ 2402 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2403 2404 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2405 * take the Thresholds from Common Nominal Packet Padding field 2406 */ 2407 } else { 2408 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2409 nominal_padding); 2410 } 2411 } else if (link_sta->he_cap.has_he) { 2412 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2413 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2414 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2415 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2416 false); 2417 /* PPE Thresholds doesn't exist - set the API PPE values 2418 * according to Common Nominal Packet Padding field. 2419 */ 2420 } else { 2421 nominal_padding = 2422 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2423 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2424 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2425 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2426 nominal_padding); 2427 } 2428 } 2429 2430 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2431 int bw; 2432 2433 for (bw = 0; 2434 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2435 bw++) { 2436 u8 *qam_th = 2437 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2438 2439 IWL_DEBUG_HT(mvm, 2440 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2441 i, bw, qam_th[0], qam_th[1]); 2442 } 2443 } 2444 return ret; 2445 } 2446 2447 /* 2448 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2449 * is enabled or not 2450 */ 2451 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2452 const struct iwl_mvm_vif_link_info *link_info, 2453 struct iwl_he_backoff_conf *trig_based_txf) 2454 { 2455 int i; 2456 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2457 bool mu_edca_enabled = true; 2458 2459 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2460 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2461 &link_info->queue_params[i].mu_edca_param_rec; 2462 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2463 2464 if (!link_info->queue_params[i].mu_edca) { 2465 mu_edca_enabled = false; 2466 break; 2467 } 2468 2469 trig_based_txf[ac].cwmin = 2470 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2471 trig_based_txf[ac].cwmax = 2472 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2473 trig_based_txf[ac].aifsn = 2474 cpu_to_le16(mu_edca->aifsn & 0xf); 2475 trig_based_txf[ac].mu_time = 2476 cpu_to_le16(mu_edca->mu_edca_timer); 2477 } 2478 2479 return mu_edca_enabled; 2480 } 2481 2482 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2483 { 2484 const struct ieee80211_supported_band *sband; 2485 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2486 2487 /* This capability is the same for all bands, 2488 * so take it from one of them. 2489 */ 2490 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2491 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2492 2493 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2494 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2495 } 2496 2497 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2498 struct ieee80211_link_sta *link_sta) 2499 { 2500 u8 *mac_cap_info = 2501 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2502 __le32 htc_flags = 0; 2503 2504 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2505 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2506 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2507 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2508 u8 link_adap = 2509 ((mac_cap_info[2] & 2510 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2511 (mac_cap_info[1] & 2512 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2513 2514 if (link_adap == 2) 2515 htc_flags |= 2516 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2517 else if (link_adap == 3) 2518 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2519 } 2520 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2521 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2522 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2523 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2524 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2525 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2526 2527 return htc_flags; 2528 } 2529 2530 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2531 struct ieee80211_vif *vif, u8 sta_id) 2532 { 2533 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2534 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2535 .sta_id = sta_id, 2536 .tid_limit = IWL_MAX_TID_COUNT, 2537 .bss_color = vif->bss_conf.he_bss_color.color, 2538 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2539 .frame_time_rts_th = 2540 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2541 }; 2542 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2543 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2544 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2545 int size; 2546 struct ieee80211_sta *sta; 2547 u32 flags; 2548 int i; 2549 void *cmd; 2550 2551 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2552 ver = 1; 2553 2554 switch (ver) { 2555 case 1: 2556 /* same layout as v2 except some data at the end */ 2557 cmd = &sta_ctxt_cmd_v2; 2558 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2559 break; 2560 case 2: 2561 cmd = &sta_ctxt_cmd_v2; 2562 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2563 break; 2564 case 3: 2565 cmd = &sta_ctxt_cmd; 2566 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2567 break; 2568 default: 2569 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2570 return; 2571 } 2572 2573 rcu_read_lock(); 2574 2575 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2576 if (IS_ERR_OR_NULL(sta)) { 2577 rcu_read_unlock(); 2578 WARN(1, "Can't find STA to configure HE\n"); 2579 return; 2580 } 2581 2582 if (!sta->deflink.he_cap.has_he) { 2583 rcu_read_unlock(); 2584 return; 2585 } 2586 2587 flags = 0; 2588 2589 /* Block 26-tone RU OFDMA transmissions */ 2590 if (mvmvif->deflink.he_ru_2mhz_block) 2591 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2592 2593 /* HTC flags */ 2594 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2595 2596 /* PPE Thresholds */ 2597 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2598 flags |= STA_CTXT_HE_PACKET_EXT; 2599 2600 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2601 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2602 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2603 2604 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2605 IEEE80211_HE_MAC_CAP2_ACK_EN) 2606 flags |= STA_CTXT_HE_ACK_ENABLED; 2607 2608 rcu_read_unlock(); 2609 2610 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2611 &sta_ctxt_cmd.trig_based_txf[0])) 2612 flags |= STA_CTXT_HE_MU_EDCA_CW; 2613 2614 if (vif->bss_conf.uora_exists) { 2615 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2616 2617 sta_ctxt_cmd.rand_alloc_ecwmin = 2618 vif->bss_conf.uora_ocw_range & 0x7; 2619 sta_ctxt_cmd.rand_alloc_ecwmax = 2620 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2621 } 2622 2623 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2624 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2625 2626 if (vif->bss_conf.nontransmitted) { 2627 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2628 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2629 vif->bss_conf.transmitter_bssid); 2630 sta_ctxt_cmd.max_bssid_indicator = 2631 vif->bss_conf.bssid_indicator; 2632 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2633 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2634 sta_ctxt_cmd.profile_periodicity = 2635 vif->bss_conf.profile_periodicity; 2636 } 2637 2638 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2639 2640 if (ver < 3) { 2641 /* fields before pkt_ext */ 2642 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2643 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2644 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2645 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2646 2647 /* pkt_ext */ 2648 for (i = 0; 2649 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2650 i++) { 2651 u8 bw; 2652 2653 for (bw = 0; 2654 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2655 bw++) { 2656 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2657 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2658 2659 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2660 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2661 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2662 } 2663 } 2664 2665 /* fields after pkt_ext */ 2666 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2667 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2668 sizeof(sta_ctxt_cmd_v2) - 2669 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2670 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2671 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2672 (u8 *)&sta_ctxt_cmd + 2673 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2674 sizeof(sta_ctxt_cmd) - 2675 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2676 sta_ctxt_cmd_v2.reserved3 = 0; 2677 } 2678 2679 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2680 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2681 } 2682 2683 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2684 u32 duration_override, unsigned int link_id) 2685 { 2686 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2687 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2688 2689 if (duration_override > duration) 2690 duration = duration_override; 2691 2692 /* Try really hard to protect the session and hear a beacon 2693 * The new session protection command allows us to protect the 2694 * session for a much longer time since the firmware will internally 2695 * create two events: a 300TU one with a very high priority that 2696 * won't be fragmented which should be enough for 99% of the cases, 2697 * and another one (which we configure here to be 900TU long) which 2698 * will have a slightly lower priority, but more importantly, can be 2699 * fragmented so that it'll allow other activities to run. 2700 */ 2701 if (fw_has_capa(&mvm->fw->ucode_capa, 2702 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2703 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2704 min_duration, false, 2705 link_id); 2706 else 2707 iwl_mvm_protect_session(mvm, vif, duration, 2708 min_duration, 500, false); 2709 } 2710 2711 /* Handle association common part to MLD and non-MLD modes */ 2712 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2713 struct ieee80211_vif *vif, 2714 u64 changes) 2715 { 2716 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2717 int ret; 2718 int link_id; 2719 2720 /* The firmware tracks the MU-MIMO group on its own. 2721 * However, on HW restart we should restore this data. 2722 */ 2723 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2724 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2725 ret = iwl_mvm_update_mu_groups(mvm, vif); 2726 if (ret) 2727 IWL_ERR(mvm, 2728 "failed to update VHT MU_MIMO groups\n"); 2729 } 2730 2731 iwl_mvm_recalc_multicast(mvm); 2732 2733 /* reset rssi values */ 2734 for_each_mvm_vif_valid_link(mvmvif, link_id) 2735 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2736 2737 iwl_mvm_bt_coex_vif_change(mvm); 2738 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2739 IEEE80211_SMPS_AUTOMATIC); 2740 if (fw_has_capa(&mvm->fw->ucode_capa, 2741 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2742 iwl_mvm_config_scan(mvm); 2743 } 2744 2745 /* Execute the common part for MLD and non-MLD modes */ 2746 void 2747 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2748 struct ieee80211_vif *vif, 2749 struct ieee80211_bss_conf *link_conf, 2750 u64 changes) 2751 { 2752 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2753 int ret; 2754 2755 if (changes & BSS_CHANGED_BEACON_INFO) { 2756 /* We received a beacon from the associated AP so 2757 * remove the session protection. 2758 */ 2759 iwl_mvm_stop_session_protection(mvm, vif); 2760 2761 iwl_mvm_sf_update(mvm, vif, false); 2762 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2763 } 2764 2765 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2766 /* Send power command on every beacon change, 2767 * because we may have not enabled beacon abort yet. 2768 */ 2769 BSS_CHANGED_BEACON_INFO)) { 2770 ret = iwl_mvm_power_update_mac(mvm); 2771 if (ret) 2772 IWL_ERR(mvm, "failed to update power mode\n"); 2773 } 2774 2775 if (changes & BSS_CHANGED_CQM) { 2776 struct iwl_mvm_vif_link_info *link_info = 2777 mvmvif->link[link_conf->link_id]; 2778 2779 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2780 if (link_info) 2781 link_info->bf_data.last_cqm_event = 0; 2782 2783 if (mvmvif->bf_enabled) { 2784 /* FIXME: need to update per link when FW API will 2785 * support it 2786 */ 2787 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2788 if (ret) 2789 IWL_ERR(mvm, 2790 "failed to update CQM thresholds\n"); 2791 } 2792 } 2793 2794 if (changes & BSS_CHANGED_BANDWIDTH) 2795 iwl_mvm_update_link_smps(vif, link_conf); 2796 2797 if (changes & BSS_CHANGED_TPE) { 2798 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2799 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2800 link_conf, 2801 false); 2802 } 2803 } 2804 2805 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2806 struct ieee80211_vif *vif, 2807 struct ieee80211_bss_conf *bss_conf, 2808 u64 changes) 2809 { 2810 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2811 int ret; 2812 int i; 2813 2814 /* 2815 * Re-calculate the tsf id, as the leader-follower relations depend 2816 * on the beacon interval, which was not known when the station 2817 * interface was added. 2818 */ 2819 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2820 if ((vif->bss_conf.he_support && 2821 !iwlwifi_mod_params.disable_11ax)) 2822 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2823 2824 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2825 } 2826 2827 /* Update MU EDCA params */ 2828 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2829 vif->cfg.assoc && 2830 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2831 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2832 2833 /* 2834 * If we're not associated yet, take the (new) BSSID before associating 2835 * so the firmware knows. If we're already associated, then use the old 2836 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2837 * branch for disassociation below. 2838 */ 2839 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2840 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2841 2842 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2843 if (ret) 2844 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2845 2846 /* after sending it once, adopt mac80211 data */ 2847 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2848 mvmvif->associated = vif->cfg.assoc; 2849 2850 if (changes & BSS_CHANGED_ASSOC) { 2851 if (vif->cfg.assoc) { 2852 mvmvif->session_prot_connection_loss = false; 2853 2854 /* clear statistics to get clean beacon counter */ 2855 iwl_mvm_request_statistics(mvm, true); 2856 for_each_mvm_vif_valid_link(mvmvif, i) 2857 memset(&mvmvif->link[i]->beacon_stats, 0, 2858 sizeof(mvmvif->link[i]->beacon_stats)); 2859 2860 /* add quota for this interface */ 2861 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2862 if (ret) { 2863 IWL_ERR(mvm, "failed to update quotas\n"); 2864 return; 2865 } 2866 2867 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2868 &mvm->status) && 2869 !fw_has_capa(&mvm->fw->ucode_capa, 2870 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2871 /* 2872 * If we're restarting then the firmware will 2873 * obviously have lost synchronisation with 2874 * the AP. It will attempt to synchronise by 2875 * itself, but we can make it more reliable by 2876 * scheduling a session protection time event. 2877 * 2878 * The firmware needs to receive a beacon to 2879 * catch up with synchronisation, use 110% of 2880 * the beacon interval. 2881 * 2882 * Set a large maximum delay to allow for more 2883 * than a single interface. 2884 * 2885 * For new firmware versions, rely on the 2886 * firmware. This is relevant for DCM scenarios 2887 * only anyway. 2888 */ 2889 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2890 iwl_mvm_protect_session(mvm, vif, dur, dur, 2891 5 * dur, false); 2892 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2893 &mvm->status) && 2894 !vif->bss_conf.dtim_period) { 2895 /* 2896 * If we're not restarting and still haven't 2897 * heard a beacon (dtim period unknown) then 2898 * make sure we still have enough minimum time 2899 * remaining in the time event, since the auth 2900 * might actually have taken quite a while 2901 * (especially for SAE) and so the remaining 2902 * time could be small without us having heard 2903 * a beacon yet. 2904 */ 2905 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2906 } 2907 2908 iwl_mvm_sf_update(mvm, vif, false); 2909 iwl_mvm_power_vif_assoc(mvm, vif); 2910 if (vif->p2p) { 2911 iwl_mvm_update_smps(mvm, vif, 2912 IWL_MVM_SMPS_REQ_PROT, 2913 IEEE80211_SMPS_DYNAMIC, 0); 2914 } 2915 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2916 iwl_mvm_mei_host_disassociated(mvm); 2917 /* 2918 * If update fails - SF might be running in associated 2919 * mode while disassociated - which is forbidden. 2920 */ 2921 ret = iwl_mvm_sf_update(mvm, vif, false); 2922 WARN_ONCE(ret && 2923 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2924 &mvm->status), 2925 "Failed to update SF upon disassociation\n"); 2926 2927 /* 2928 * If we get an assert during the connection (after the 2929 * station has been added, but before the vif is set 2930 * to associated), mac80211 will re-add the station and 2931 * then configure the vif. Since the vif is not 2932 * associated, we would remove the station here and 2933 * this would fail the recovery. 2934 */ 2935 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2936 &mvm->status)) { 2937 /* first remove remaining keys */ 2938 iwl_mvm_sec_key_remove_ap(mvm, vif, 2939 &mvmvif->deflink, 0); 2940 2941 /* 2942 * Remove AP station now that 2943 * the MAC is unassoc 2944 */ 2945 ret = iwl_mvm_rm_sta_id(mvm, vif, 2946 mvmvif->deflink.ap_sta_id); 2947 if (ret) 2948 IWL_ERR(mvm, 2949 "failed to remove AP station\n"); 2950 2951 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2952 } 2953 2954 /* remove quota for this interface */ 2955 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2956 if (ret) 2957 IWL_ERR(mvm, "failed to update quotas\n"); 2958 2959 /* this will take the cleared BSSID from bss_conf */ 2960 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2961 if (ret) 2962 IWL_ERR(mvm, 2963 "failed to update MAC %pM (clear after unassoc)\n", 2964 vif->addr); 2965 } 2966 2967 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2968 } 2969 2970 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2971 changes); 2972 } 2973 2974 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2975 struct ieee80211_vif *vif, 2976 int *ret) 2977 { 2978 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2979 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2980 int i; 2981 2982 lockdep_assert_held(&mvm->mutex); 2983 2984 mvmvif->ap_assoc_sta_count = 0; 2985 2986 /* must be set before quota calculations */ 2987 mvmvif->ap_ibss_active = true; 2988 2989 /* send all the early keys to the device now */ 2990 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2991 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2992 2993 if (!key) 2994 continue; 2995 2996 mvmvif->ap_early_keys[i] = NULL; 2997 2998 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2999 if (*ret) 3000 return true; 3001 } 3002 3003 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3004 iwl_mvm_vif_set_low_latency(mvmvif, true, 3005 LOW_LATENCY_VIF_TYPE); 3006 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 3007 } 3008 3009 /* power updated needs to be done before quotas */ 3010 iwl_mvm_power_update_mac(mvm); 3011 3012 return false; 3013 } 3014 3015 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 3016 struct ieee80211_vif *vif, 3017 struct ieee80211_bss_conf *link_conf) 3018 { 3019 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3020 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3021 int ret; 3022 3023 mutex_lock(&mvm->mutex); 3024 3025 /* 3026 * Re-calculate the tsf id, as the leader-follower relations depend on 3027 * the beacon interval, which was not known when the AP interface 3028 * was added. 3029 */ 3030 if (vif->type == NL80211_IFTYPE_AP) 3031 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 3032 3033 /* For older devices need to send beacon template before adding mac 3034 * context. For the newer, the beacon is a resource that belongs to a 3035 * MAC, so need to send beacon template after adding the mac. 3036 */ 3037 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 3038 /* Add the mac context */ 3039 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3040 if (ret) 3041 goto out_unlock; 3042 3043 /* Send the beacon template */ 3044 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3045 if (ret) 3046 goto out_unlock; 3047 } else { 3048 /* Send the beacon template */ 3049 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3050 if (ret) 3051 goto out_unlock; 3052 3053 /* Add the mac context */ 3054 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3055 if (ret) 3056 goto out_unlock; 3057 } 3058 3059 /* Perform the binding */ 3060 ret = iwl_mvm_binding_add_vif(mvm, vif); 3061 if (ret) 3062 goto out_remove; 3063 3064 /* 3065 * This is not very nice, but the simplest: 3066 * For older FWs adding the mcast sta before the bcast station may 3067 * cause assert 0x2b00. 3068 * This is fixed in later FW so make the order of removal depend on 3069 * the TLV 3070 */ 3071 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3072 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3073 if (ret) 3074 goto out_unbind; 3075 /* 3076 * Send the bcast station. At this stage the TBTT and DTIM time 3077 * events are added and applied to the scheduler 3078 */ 3079 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3080 if (ret) { 3081 iwl_mvm_rm_mcast_sta(mvm, vif); 3082 goto out_unbind; 3083 } 3084 } else { 3085 /* 3086 * Send the bcast station. At this stage the TBTT and DTIM time 3087 * events are added and applied to the scheduler 3088 */ 3089 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3090 if (ret) 3091 goto out_unbind; 3092 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3093 if (ret) { 3094 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3095 goto out_unbind; 3096 } 3097 } 3098 3099 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3100 goto out_failed; 3101 3102 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3103 if (ret) 3104 goto out_failed; 3105 3106 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3107 if (vif->p2p && mvm->p2p_device_vif) 3108 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3109 3110 iwl_mvm_bt_coex_vif_change(mvm); 3111 3112 /* we don't support TDLS during DCM */ 3113 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3114 iwl_mvm_teardown_tdls_peers(mvm); 3115 3116 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3117 3118 goto out_unlock; 3119 3120 out_failed: 3121 iwl_mvm_power_update_mac(mvm); 3122 mvmvif->ap_ibss_active = false; 3123 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3124 iwl_mvm_rm_mcast_sta(mvm, vif); 3125 out_unbind: 3126 iwl_mvm_binding_remove_vif(mvm, vif); 3127 out_remove: 3128 iwl_mvm_mac_ctxt_remove(mvm, vif); 3129 out_unlock: 3130 mutex_unlock(&mvm->mutex); 3131 return ret; 3132 } 3133 3134 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3135 struct ieee80211_vif *vif, 3136 struct ieee80211_bss_conf *link_conf) 3137 { 3138 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3139 } 3140 3141 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3142 struct ieee80211_vif *vif) 3143 { 3144 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3145 } 3146 3147 /* Common part for MLD and non-MLD ops */ 3148 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3149 struct ieee80211_vif *vif) 3150 { 3151 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3152 3153 lockdep_assert_held(&mvm->mutex); 3154 3155 iwl_mvm_prepare_mac_removal(mvm, vif); 3156 3157 /* Handle AP stop while in CSA */ 3158 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3159 iwl_mvm_remove_time_event(mvm, mvmvif, 3160 &mvmvif->time_event_data); 3161 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3162 mvmvif->csa_countdown = false; 3163 } 3164 3165 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3166 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3167 mvm->csa_tx_block_bcn_timeout = 0; 3168 } 3169 3170 mvmvif->ap_ibss_active = false; 3171 mvm->ap_last_beacon_gp2 = 0; 3172 3173 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3174 iwl_mvm_vif_set_low_latency(mvmvif, false, 3175 LOW_LATENCY_VIF_TYPE); 3176 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3177 } 3178 3179 iwl_mvm_bt_coex_vif_change(mvm); 3180 } 3181 3182 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3183 struct ieee80211_vif *vif, 3184 struct ieee80211_bss_conf *link_conf) 3185 { 3186 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3187 3188 guard(mvm)(mvm); 3189 3190 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3191 3192 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3193 if (vif->p2p && mvm->p2p_device_vif) 3194 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3195 3196 iwl_mvm_update_quotas(mvm, false, NULL); 3197 3198 iwl_mvm_ftm_responder_clear(mvm, vif); 3199 3200 /* 3201 * This is not very nice, but the simplest: 3202 * For older FWs removing the mcast sta before the bcast station may 3203 * cause assert 0x2b00. 3204 * This is fixed in later FW (which will stop beaconing when removing 3205 * bcast station). 3206 * So make the order of removal depend on the TLV 3207 */ 3208 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3209 iwl_mvm_rm_mcast_sta(mvm, vif); 3210 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3211 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3212 iwl_mvm_rm_mcast_sta(mvm, vif); 3213 iwl_mvm_binding_remove_vif(mvm, vif); 3214 3215 iwl_mvm_power_update_mac(mvm); 3216 3217 iwl_mvm_mac_ctxt_remove(mvm, vif); 3218 } 3219 3220 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3221 struct ieee80211_vif *vif, 3222 struct ieee80211_bss_conf *link_conf) 3223 { 3224 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3225 } 3226 3227 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3228 struct ieee80211_vif *vif) 3229 { 3230 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3231 } 3232 3233 static void 3234 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3235 struct ieee80211_vif *vif, 3236 struct ieee80211_bss_conf *bss_conf, 3237 u64 changes) 3238 { 3239 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3240 3241 /* Changes will be applied when the AP/IBSS is started */ 3242 if (!mvmvif->ap_ibss_active) 3243 return; 3244 3245 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3246 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3247 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3248 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3249 3250 /* Need to send a new beacon template to the FW */ 3251 if (changes & BSS_CHANGED_BEACON && 3252 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3253 IWL_WARN(mvm, "Failed updating beacon data\n"); 3254 3255 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3256 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3257 3258 if (ret) 3259 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3260 ret); 3261 } 3262 3263 } 3264 3265 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3266 struct ieee80211_vif *vif, 3267 struct ieee80211_bss_conf *bss_conf, 3268 u64 changes) 3269 { 3270 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3271 3272 guard(mvm)(mvm); 3273 3274 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3275 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3276 3277 switch (vif->type) { 3278 case NL80211_IFTYPE_STATION: 3279 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3280 break; 3281 case NL80211_IFTYPE_AP: 3282 case NL80211_IFTYPE_ADHOC: 3283 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3284 break; 3285 case NL80211_IFTYPE_MONITOR: 3286 if (changes & BSS_CHANGED_MU_GROUPS) 3287 iwl_mvm_update_mu_groups(mvm, vif); 3288 break; 3289 default: 3290 /* shouldn't happen */ 3291 WARN_ON_ONCE(1); 3292 } 3293 3294 if (changes & BSS_CHANGED_TXPOWER) { 3295 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3296 bss_conf->txpower); 3297 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3298 } 3299 } 3300 3301 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3302 struct ieee80211_scan_request *hw_req) 3303 { 3304 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3305 3306 if (hw_req->req.n_channels == 0 || 3307 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3308 return -EINVAL; 3309 3310 guard(mvm)(mvm); 3311 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3312 } 3313 3314 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3315 struct ieee80211_vif *vif) 3316 { 3317 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3318 3319 guard(mvm)(mvm); 3320 3321 /* Due to a race condition, it's possible that mac80211 asks 3322 * us to stop a hw_scan when it's already stopped. This can 3323 * happen, for instance, if we stopped the scan ourselves, 3324 * called ieee80211_scan_completed() and the userspace called 3325 * cancel scan scan before ieee80211_scan_work() could run. 3326 * To handle that, simply return if the scan is not running. 3327 */ 3328 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3329 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3330 } 3331 3332 void 3333 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3334 struct ieee80211_sta *sta, u16 tids, 3335 int num_frames, 3336 enum ieee80211_frame_release_type reason, 3337 bool more_data) 3338 { 3339 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3340 3341 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3342 3343 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3344 tids, more_data, false); 3345 } 3346 3347 void 3348 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3349 struct ieee80211_sta *sta, u16 tids, 3350 int num_frames, 3351 enum ieee80211_frame_release_type reason, 3352 bool more_data) 3353 { 3354 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3355 3356 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3357 3358 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3359 tids, more_data, true); 3360 } 3361 3362 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3363 enum sta_notify_cmd cmd, 3364 struct ieee80211_sta *sta) 3365 { 3366 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3367 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3368 unsigned long txqs = 0, tids = 0; 3369 int tid; 3370 3371 /* 3372 * If we have TVQM then we get too high queue numbers - luckily 3373 * we really shouldn't get here with that because such hardware 3374 * should have firmware supporting buffer station offload. 3375 */ 3376 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3377 return; 3378 3379 spin_lock_bh(&mvmsta->lock); 3380 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3381 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3382 3383 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3384 continue; 3385 3386 __set_bit(tid_data->txq_id, &txqs); 3387 3388 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3389 continue; 3390 3391 __set_bit(tid, &tids); 3392 } 3393 3394 switch (cmd) { 3395 case STA_NOTIFY_SLEEP: 3396 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3397 ieee80211_sta_set_buffered(sta, tid, true); 3398 3399 if (txqs) 3400 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3401 /* 3402 * The fw updates the STA to be asleep. Tx packets on the Tx 3403 * queues to this station will not be transmitted. The fw will 3404 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3405 */ 3406 break; 3407 case STA_NOTIFY_AWAKE: 3408 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3409 break; 3410 3411 if (txqs) 3412 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3413 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3414 break; 3415 default: 3416 break; 3417 } 3418 spin_unlock_bh(&mvmsta->lock); 3419 } 3420 3421 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3422 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3423 { 3424 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3425 } 3426 3427 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3428 { 3429 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3430 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3431 struct ieee80211_sta *sta; 3432 struct iwl_mvm_sta *mvmsta; 3433 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3434 3435 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3436 return; 3437 3438 rcu_read_lock(); 3439 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3440 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3441 rcu_read_unlock(); 3442 return; 3443 } 3444 3445 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3446 3447 if (!mvmsta->vif || 3448 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3449 rcu_read_unlock(); 3450 return; 3451 } 3452 3453 if (mvmsta->sleeping != sleeping) { 3454 mvmsta->sleeping = sleeping; 3455 __iwl_mvm_mac_sta_notify(mvm->hw, 3456 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3457 sta); 3458 ieee80211_sta_ps_transition(sta, sleeping); 3459 } 3460 3461 if (sleeping) { 3462 switch (notif->type) { 3463 case IWL_MVM_PM_EVENT_AWAKE: 3464 case IWL_MVM_PM_EVENT_ASLEEP: 3465 break; 3466 case IWL_MVM_PM_EVENT_UAPSD: 3467 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3468 break; 3469 case IWL_MVM_PM_EVENT_PS_POLL: 3470 ieee80211_sta_pspoll(sta); 3471 break; 3472 default: 3473 break; 3474 } 3475 } 3476 3477 rcu_read_unlock(); 3478 } 3479 3480 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3481 struct ieee80211_vif *vif, 3482 struct ieee80211_sta *sta) 3483 { 3484 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3485 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3486 unsigned int link_id; 3487 3488 /* 3489 * This is called before mac80211 does RCU synchronisation, 3490 * so here we already invalidate our internal RCU-protected 3491 * station pointer. The rest of the code will thus no longer 3492 * be able to find the station this way, and we don't rely 3493 * on further RCU synchronisation after the sta_state() 3494 * callback deleted the station. 3495 * Since there's mvm->mutex here, no need to have RCU lock for 3496 * mvm_sta->link access. 3497 */ 3498 guard(mvm)(mvm); 3499 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3500 struct iwl_mvm_link_sta *link_sta; 3501 u32 sta_id; 3502 3503 if (!mvm_sta->link[link_id]) 3504 continue; 3505 3506 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3507 lockdep_is_held(&mvm->mutex)); 3508 sta_id = link_sta->sta_id; 3509 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3510 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3511 ERR_PTR(-ENOENT)); 3512 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3513 } 3514 } 3515 } 3516 3517 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3518 const u8 *bssid) 3519 { 3520 int i; 3521 3522 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3523 struct iwl_mvm_tcm_mac *mdata; 3524 3525 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3526 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3527 mdata->opened_rx_ba_sessions = false; 3528 } 3529 3530 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3531 return; 3532 3533 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3534 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3535 return; 3536 } 3537 3538 if (!vif->p2p && 3539 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3540 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3541 return; 3542 } 3543 3544 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3545 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3546 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3547 return; 3548 } 3549 } 3550 3551 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3552 } 3553 3554 static void 3555 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3556 struct ieee80211_vif *vif, u8 *peer_addr, 3557 enum nl80211_tdls_operation action) 3558 { 3559 struct iwl_fw_dbg_trigger_tlv *trig; 3560 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3561 3562 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3563 FW_DBG_TRIGGER_TDLS); 3564 if (!trig) 3565 return; 3566 3567 tdls_trig = (void *)trig->data; 3568 3569 if (!(tdls_trig->action_bitmap & BIT(action))) 3570 return; 3571 3572 if (tdls_trig->peer_mode && 3573 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3574 return; 3575 3576 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3577 "TDLS event occurred, peer %pM, action %d", 3578 peer_addr, action); 3579 } 3580 3581 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3582 bool tolerated; 3583 }; 3584 3585 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3586 struct cfg80211_bss *bss, 3587 void *_data) 3588 { 3589 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3590 const struct cfg80211_bss_ies *ies; 3591 const struct element *elem; 3592 3593 rcu_read_lock(); 3594 ies = rcu_dereference(bss->ies); 3595 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3596 ies->len); 3597 3598 if (!elem || elem->datalen < 10 || 3599 !(elem->data[10] & 3600 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3601 data->tolerated = false; 3602 } 3603 rcu_read_unlock(); 3604 } 3605 3606 static void 3607 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3608 struct ieee80211_vif *vif, 3609 unsigned int link_id, 3610 struct ieee80211_bss_conf *link_conf) 3611 { 3612 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3613 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3614 .tolerated = true, 3615 }; 3616 3617 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3618 !mvmvif->link[link_id])) 3619 return; 3620 3621 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3622 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3623 return; 3624 } 3625 3626 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3627 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3628 &iter_data); 3629 3630 /* 3631 * If there is at least one AP on radar channel that cannot 3632 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3633 */ 3634 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3635 } 3636 3637 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3638 struct ieee80211_vif *vif) 3639 { 3640 struct ieee80211_supported_band *sband; 3641 const struct ieee80211_sta_he_cap *he_cap; 3642 3643 if (vif->type != NL80211_IFTYPE_STATION) 3644 return; 3645 3646 if (!mvm->cca_40mhz_workaround) 3647 return; 3648 3649 /* decrement and check that we reached zero */ 3650 mvm->cca_40mhz_workaround--; 3651 if (mvm->cca_40mhz_workaround) 3652 return; 3653 3654 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3655 3656 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3657 3658 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3659 3660 if (he_cap) { 3661 /* we know that ours is writable */ 3662 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3663 3664 he->he_cap_elem.phy_cap_info[0] |= 3665 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3666 } 3667 } 3668 3669 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3670 struct ieee80211_vif *vif, 3671 struct iwl_mvm_sta *mvm_sta) 3672 { 3673 #if IS_ENABLED(CONFIG_IWLMEI) 3674 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3675 struct iwl_mei_conn_info conn_info = { 3676 .ssid_len = vif->cfg.ssid_len, 3677 }; 3678 3679 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3680 return; 3681 3682 if (!mvm->mei_registered) 3683 return; 3684 3685 /* FIXME: MEI needs to be updated for MLO */ 3686 if (!vif->bss_conf.chanreq.oper.chan) 3687 return; 3688 3689 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3690 3691 switch (mvm_sta->pairwise_cipher) { 3692 case WLAN_CIPHER_SUITE_TKIP: 3693 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3694 break; 3695 case WLAN_CIPHER_SUITE_CCMP: 3696 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3697 break; 3698 case WLAN_CIPHER_SUITE_GCMP: 3699 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3700 break; 3701 case WLAN_CIPHER_SUITE_GCMP_256: 3702 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3703 break; 3704 case 0: 3705 /* open profile */ 3706 break; 3707 default: 3708 /* cipher not supported, don't send anything to iwlmei */ 3709 return; 3710 } 3711 3712 switch (mvmvif->rekey_data.akm) { 3713 case WLAN_AKM_SUITE_SAE & 0xff: 3714 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3715 break; 3716 case WLAN_AKM_SUITE_PSK & 0xff: 3717 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3718 break; 3719 case WLAN_AKM_SUITE_8021X & 0xff: 3720 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3721 break; 3722 case 0: 3723 /* open profile */ 3724 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3725 break; 3726 default: 3727 /* auth method / AKM not supported */ 3728 /* TODO: All the FT vesions of these? */ 3729 return; 3730 } 3731 3732 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3733 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3734 3735 /* TODO: add support for collocated AP data */ 3736 iwl_mei_host_associated(&conn_info, NULL); 3737 #endif 3738 } 3739 3740 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3741 struct ieee80211_vif *vif, 3742 bool force_assoc_off) 3743 { 3744 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3745 } 3746 3747 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3748 struct ieee80211_vif *vif, 3749 struct ieee80211_sta *sta, 3750 enum ieee80211_sta_state old_state, 3751 enum ieee80211_sta_state new_state) 3752 { 3753 static const struct iwl_mvm_sta_state_ops callbacks = { 3754 .add_sta = iwl_mvm_add_sta, 3755 .update_sta = iwl_mvm_update_sta, 3756 .rm_sta = iwl_mvm_rm_sta, 3757 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3758 }; 3759 3760 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3761 &callbacks); 3762 } 3763 3764 /* FIXME: temporary making two assumptions in all sta handling functions: 3765 * (1) when setting sta state, the link exists and protected 3766 * (2) if a link is valid in sta then it's valid in vif (can 3767 * use same index in the link array) 3768 */ 3769 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3770 struct ieee80211_vif *vif, 3771 struct ieee80211_sta *sta) 3772 { 3773 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3774 unsigned int link_id; 3775 3776 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3777 struct ieee80211_bss_conf *conf = 3778 link_conf_dereference_check(vif, link_id); 3779 struct ieee80211_link_sta *link_sta = 3780 link_sta_dereference_check(sta, link_id); 3781 3782 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3783 continue; 3784 3785 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3786 mvmvif->link[link_id]->phy_ctxt->channel->band); 3787 } 3788 } 3789 3790 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3791 struct ieee80211_vif *vif, 3792 struct ieee80211_sta *sta) 3793 { 3794 struct ieee80211_link_sta *link_sta; 3795 unsigned int link_id; 3796 3797 /* Beacon interval check - firmware will crash if the beacon 3798 * interval is less than 16. We can't avoid connecting at all, 3799 * so refuse the station state change, this will cause mac80211 3800 * to abandon attempts to connect to this AP, and eventually 3801 * wpa_s will blocklist the AP... 3802 */ 3803 3804 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3805 struct ieee80211_bss_conf *link_conf = 3806 link_conf_dereference_protected(vif, link_id); 3807 3808 if (!link_conf) 3809 continue; 3810 3811 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3812 IWL_ERR(mvm, 3813 "Beacon interval %d for AP %pM is too small\n", 3814 link_conf->beacon_int, link_sta->addr); 3815 return false; 3816 } 3817 3818 link_conf->he_support = link_sta->he_cap.has_he; 3819 } 3820 3821 return true; 3822 } 3823 3824 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3825 struct ieee80211_vif *vif, 3826 struct ieee80211_sta *sta, 3827 bool is_sta) 3828 { 3829 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3830 struct ieee80211_link_sta *link_sta; 3831 unsigned int link_id; 3832 3833 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3834 struct ieee80211_bss_conf *link_conf = 3835 link_conf_dereference_protected(vif, link_id); 3836 3837 if (!link_conf || !mvmvif->link[link_id]) 3838 continue; 3839 3840 link_conf->he_support = link_sta->he_cap.has_he; 3841 3842 if (is_sta) { 3843 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3844 if (link_sta->he_cap.has_he) 3845 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3846 link_id, 3847 link_conf); 3848 } 3849 } 3850 } 3851 3852 static int 3853 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3854 struct ieee80211_vif *vif, 3855 struct ieee80211_sta *sta, 3856 const struct iwl_mvm_sta_state_ops *callbacks) 3857 { 3858 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3859 struct ieee80211_link_sta *link_sta; 3860 unsigned int i; 3861 int ret; 3862 3863 lockdep_assert_held(&mvm->mutex); 3864 3865 if (vif->type == NL80211_IFTYPE_STATION && 3866 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3867 return -EINVAL; 3868 3869 if (sta->tdls && 3870 (vif->p2p || 3871 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3872 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3873 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3874 return -EBUSY; 3875 } 3876 3877 ret = callbacks->add_sta(mvm, vif, sta); 3878 if (sta->tdls && ret == 0) { 3879 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3880 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3881 NL80211_TDLS_SETUP); 3882 } 3883 3884 if (ret) 3885 return ret; 3886 3887 for_each_sta_active_link(vif, sta, link_sta, i) 3888 link_sta->agg.max_rc_amsdu_len = 1; 3889 3890 ieee80211_sta_recalc_aggregates(sta); 3891 3892 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3893 mvmvif->ap_sta = sta; 3894 3895 /* 3896 * Initialize the rates here already - this really tells 3897 * the firmware only what the supported legacy rates are 3898 * (may be) since it's initialized already from what the 3899 * AP advertised in the beacon/probe response. This will 3900 * allow the firmware to send auth/assoc frames with one 3901 * of the supported rates already, rather than having to 3902 * use a mandatory rate. 3903 * If we're the AP, we'll just assume mandatory rates at 3904 * this point, but we know nothing about the STA anyway. 3905 */ 3906 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3907 3908 return 0; 3909 } 3910 3911 static int 3912 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3913 struct iwl_mvm *mvm, 3914 struct ieee80211_vif *vif, 3915 struct ieee80211_sta *sta, 3916 const struct iwl_mvm_sta_state_ops *callbacks) 3917 { 3918 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3919 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3920 struct ieee80211_link_sta *link_sta; 3921 unsigned int link_id; 3922 3923 lockdep_assert_held(&mvm->mutex); 3924 3925 if (vif->type == NL80211_IFTYPE_AP) { 3926 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3927 mvmvif->ap_assoc_sta_count++; 3928 callbacks->mac_ctxt_changed(mvm, vif, false); 3929 3930 /* since the below is not for MLD API, it's ok to use 3931 * the default bss_conf 3932 */ 3933 if (!mvm->mld_api_is_used && 3934 (vif->bss_conf.he_support && 3935 !iwlwifi_mod_params.disable_11ax)) 3936 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3937 } else if (vif->type == NL80211_IFTYPE_STATION) { 3938 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3939 3940 callbacks->mac_ctxt_changed(mvm, vif, false); 3941 3942 if (!mvm->mld_api_is_used) 3943 goto out; 3944 3945 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3946 struct ieee80211_bss_conf *link_conf = 3947 link_conf_dereference_protected(vif, link_id); 3948 3949 if (WARN_ON(!link_conf)) 3950 return -EINVAL; 3951 if (!mvmvif->link[link_id]) 3952 continue; 3953 3954 iwl_mvm_link_changed(mvm, vif, link_conf, 3955 LINK_CONTEXT_MODIFY_ALL & 3956 ~LINK_CONTEXT_MODIFY_ACTIVE, 3957 true); 3958 } 3959 } 3960 3961 out: 3962 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3963 3964 return callbacks->update_sta(mvm, vif, sta); 3965 } 3966 3967 static int 3968 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3969 struct ieee80211_vif *vif, 3970 struct ieee80211_sta *sta, 3971 const struct iwl_mvm_sta_state_ops *callbacks) 3972 { 3973 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3974 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3975 3976 lockdep_assert_held(&mvm->mutex); 3977 3978 /* we don't support TDLS during DCM */ 3979 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3980 iwl_mvm_teardown_tdls_peers(mvm); 3981 3982 if (sta->tdls) { 3983 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3984 NL80211_TDLS_ENABLE_LINK); 3985 } else { 3986 /* enable beacon filtering */ 3987 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 3988 3989 mvmvif->authorized = 1; 3990 3991 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3992 mvmvif->link_selection_res = vif->active_links; 3993 mvmvif->link_selection_primary = 3994 vif->active_links ? __ffs(vif->active_links) : 0; 3995 } 3996 3997 callbacks->mac_ctxt_changed(mvm, vif, false); 3998 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3999 4000 memset(&mvmvif->last_esr_exit, 0, 4001 sizeof(mvmvif->last_esr_exit)); 4002 4003 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); 4004 4005 /* Block until FW notif will arrive */ 4006 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0); 4007 4008 /* when client is authorized (AP station marked as such), 4009 * try to enable the best link(s). 4010 */ 4011 if (vif->type == NL80211_IFTYPE_STATION && 4012 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4013 iwl_mvm_select_links(mvm, vif); 4014 } 4015 4016 mvm_sta->authorized = true; 4017 4018 /* MFP is set by default before the station is authorized. 4019 * Clear it here in case it's not used. 4020 */ 4021 if (!sta->mfp) { 4022 int ret = callbacks->update_sta(mvm, vif, sta); 4023 4024 if (ret) 4025 return ret; 4026 } 4027 4028 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4029 4030 return 0; 4031 } 4032 4033 static int 4034 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 4035 struct ieee80211_vif *vif, 4036 struct ieee80211_sta *sta, 4037 const struct iwl_mvm_sta_state_ops *callbacks) 4038 { 4039 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4040 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4041 4042 lockdep_assert_held(&mvm->mutex); 4043 4044 mvmsta->authorized = false; 4045 4046 /* once we move into assoc state, need to update rate scale to 4047 * disable using wide bandwidth 4048 */ 4049 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4050 4051 if (!sta->tdls) { 4052 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 4053 * yet to avoid sending high prio again for a little 4054 * time. 4055 */ 4056 mvmvif->authorized = 0; 4057 mvmvif->link_selection_res = 0; 4058 4059 /* disable beacon filtering */ 4060 iwl_mvm_disable_beacon_filter(mvm, vif); 4061 4062 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4063 &mvmvif->prevent_esr_done_wk); 4064 4065 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4066 &mvmvif->mlo_int_scan_wk); 4067 4068 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 4069 4070 /* No need for the periodic statistics anymore */ 4071 if (ieee80211_vif_is_mld(vif) && mvmvif->esr_active) 4072 iwl_mvm_request_periodic_system_statistics(mvm, false); 4073 } 4074 4075 return 0; 4076 } 4077 4078 /* Common part for MLD and non-MLD modes */ 4079 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4080 struct ieee80211_vif *vif, 4081 struct ieee80211_sta *sta, 4082 enum ieee80211_sta_state old_state, 4083 enum ieee80211_sta_state new_state, 4084 const struct iwl_mvm_sta_state_ops *callbacks) 4085 { 4086 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4087 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4088 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4089 struct ieee80211_link_sta *link_sta; 4090 unsigned int link_id; 4091 int ret; 4092 4093 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4094 sta->addr, old_state, new_state); 4095 4096 /* 4097 * If we are in a STA removal flow and in DQA mode: 4098 * 4099 * This is after the sync_rcu part, so the queues have already been 4100 * flushed. No more TXs on their way in mac80211's path, and no more in 4101 * the queues. 4102 * Also, we won't be getting any new TX frames for this station. 4103 * What we might have are deferred TX frames that need to be taken care 4104 * of. 4105 * 4106 * Drop any still-queued deferred-frame before removing the STA, and 4107 * make sure the worker is no longer handling frames for this STA. 4108 */ 4109 if (old_state == IEEE80211_STA_NONE && 4110 new_state == IEEE80211_STA_NOTEXIST) { 4111 flush_work(&mvm->add_stream_wk); 4112 4113 /* 4114 * No need to make sure deferred TX indication is off since the 4115 * worker will already remove it if it was on 4116 */ 4117 4118 /* 4119 * Additionally, reset the 40 MHz capability if we disconnected 4120 * from the AP now. 4121 */ 4122 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4123 4124 /* Also free dup data just in case any assertions below fail */ 4125 kfree(mvm_sta->dup_data); 4126 } 4127 4128 mutex_lock(&mvm->mutex); 4129 4130 /* this would be a mac80211 bug ... but don't crash, unless we had a 4131 * firmware crash while we were activating a link, in which case it is 4132 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4133 * recovery flow since we spit tons of error messages anyway. 4134 */ 4135 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4136 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4137 !mvmvif->link[link_id]->phy_ctxt)) { 4138 mutex_unlock(&mvm->mutex); 4139 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4140 &mvm->status) ? 0 : -EINVAL; 4141 } 4142 } 4143 4144 /* track whether or not the station is associated */ 4145 mvm_sta->sta_state = new_state; 4146 4147 if (old_state == IEEE80211_STA_NOTEXIST && 4148 new_state == IEEE80211_STA_NONE) { 4149 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4150 callbacks); 4151 if (ret < 0) 4152 goto out_unlock; 4153 } else if (old_state == IEEE80211_STA_NONE && 4154 new_state == IEEE80211_STA_AUTH) { 4155 /* 4156 * EBS may be disabled due to previous failures reported by FW. 4157 * Reset EBS status here assuming environment has been changed. 4158 */ 4159 mvm->last_ebs_successful = true; 4160 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4161 ret = 0; 4162 } else if (old_state == IEEE80211_STA_AUTH && 4163 new_state == IEEE80211_STA_ASSOC) { 4164 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4165 callbacks); 4166 } else if (old_state == IEEE80211_STA_ASSOC && 4167 new_state == IEEE80211_STA_AUTHORIZED) { 4168 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4169 callbacks); 4170 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4171 new_state == IEEE80211_STA_ASSOC) { 4172 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4173 callbacks); 4174 } else if (old_state == IEEE80211_STA_ASSOC && 4175 new_state == IEEE80211_STA_AUTH) { 4176 if (vif->type == NL80211_IFTYPE_AP) { 4177 mvmvif->ap_assoc_sta_count--; 4178 callbacks->mac_ctxt_changed(mvm, vif, false); 4179 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4180 iwl_mvm_stop_session_protection(mvm, vif); 4181 ret = 0; 4182 } else if (old_state == IEEE80211_STA_AUTH && 4183 new_state == IEEE80211_STA_NONE) { 4184 ret = 0; 4185 } else if (old_state == IEEE80211_STA_NONE && 4186 new_state == IEEE80211_STA_NOTEXIST) { 4187 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4188 iwl_mvm_stop_session_protection(mvm, vif); 4189 mvmvif->ap_sta = NULL; 4190 } 4191 ret = callbacks->rm_sta(mvm, vif, sta); 4192 if (sta->tdls) { 4193 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4194 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4195 NL80211_TDLS_DISABLE_LINK); 4196 } 4197 4198 if (unlikely(ret && 4199 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4200 &mvm->status))) 4201 ret = 0; 4202 } else { 4203 ret = -EIO; 4204 } 4205 out_unlock: 4206 mutex_unlock(&mvm->mutex); 4207 4208 if (sta->tdls && ret == 0) { 4209 if (old_state == IEEE80211_STA_NOTEXIST && 4210 new_state == IEEE80211_STA_NONE) 4211 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4212 else if (old_state == IEEE80211_STA_NONE && 4213 new_state == IEEE80211_STA_NOTEXIST) 4214 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4215 } 4216 4217 return ret; 4218 } 4219 4220 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4221 { 4222 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4223 4224 mvm->rts_threshold = value; 4225 4226 return 0; 4227 } 4228 4229 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4230 struct ieee80211_sta *sta, u32 changed) 4231 { 4232 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4233 4234 if (changed & (IEEE80211_RC_BW_CHANGED | 4235 IEEE80211_RC_SUPP_RATES_CHANGED | 4236 IEEE80211_RC_NSS_CHANGED)) 4237 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4238 4239 if (vif->type == NL80211_IFTYPE_STATION && 4240 changed & IEEE80211_RC_NSS_CHANGED) 4241 iwl_mvm_sf_update(mvm, vif, false); 4242 } 4243 4244 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4245 struct ieee80211_vif *vif, 4246 unsigned int link_id, u16 ac, 4247 const struct ieee80211_tx_queue_params *params) 4248 { 4249 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4250 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4251 4252 mvmvif->deflink.queue_params[ac] = *params; 4253 4254 /* 4255 * No need to update right away, we'll get BSS_CHANGED_QOS 4256 * The exception is P2P_DEVICE interface which needs immediate update. 4257 */ 4258 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4259 guard(mvm)(mvm); 4260 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4261 } 4262 return 0; 4263 } 4264 4265 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4266 struct ieee80211_vif *vif, 4267 struct ieee80211_prep_tx_info *info) 4268 { 4269 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4270 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4271 4272 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4273 return; 4274 4275 guard(mvm)(mvm); 4276 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4277 } 4278 4279 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4280 struct ieee80211_vif *vif, 4281 struct ieee80211_prep_tx_info *info) 4282 { 4283 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4284 4285 /* for successful cases (auth/assoc), don't cancel session protection */ 4286 if (info->success) 4287 return; 4288 4289 guard(mvm)(mvm); 4290 iwl_mvm_stop_session_protection(mvm, vif); 4291 } 4292 4293 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4294 struct ieee80211_vif *vif, 4295 struct cfg80211_sched_scan_request *req, 4296 struct ieee80211_scan_ies *ies) 4297 { 4298 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4299 4300 guard(mvm)(mvm); 4301 4302 if (!vif->cfg.idle) 4303 return -EBUSY; 4304 4305 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4306 } 4307 4308 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4309 struct ieee80211_vif *vif) 4310 { 4311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4312 int ret; 4313 4314 mutex_lock(&mvm->mutex); 4315 4316 /* Due to a race condition, it's possible that mac80211 asks 4317 * us to stop a sched_scan when it's already stopped. This 4318 * can happen, for instance, if we stopped the scan ourselves, 4319 * called ieee80211_sched_scan_stopped() and the userspace called 4320 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4321 * could run. To handle this, simply return if the scan is 4322 * not running. 4323 */ 4324 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4325 mutex_unlock(&mvm->mutex); 4326 return 0; 4327 } 4328 4329 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4330 mutex_unlock(&mvm->mutex); 4331 iwl_mvm_wait_for_async_handlers(mvm); 4332 4333 return ret; 4334 } 4335 4336 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4337 enum set_key_cmd cmd, 4338 struct ieee80211_vif *vif, 4339 struct ieee80211_sta *sta, 4340 struct ieee80211_key_conf *key) 4341 { 4342 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4343 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4344 struct iwl_mvm_sta *mvmsta = NULL; 4345 struct iwl_mvm_key_pn *ptk_pn = NULL; 4346 int keyidx = key->keyidx; 4347 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4348 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4349 int ret, i; 4350 u8 key_offset; 4351 4352 if (sta) 4353 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4354 4355 switch (key->cipher) { 4356 case WLAN_CIPHER_SUITE_TKIP: 4357 if (!mvm->trans->trans_cfg->gen2) { 4358 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4359 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4360 } else if (vif->type == NL80211_IFTYPE_STATION) { 4361 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4362 } else { 4363 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4364 return -EOPNOTSUPP; 4365 } 4366 break; 4367 case WLAN_CIPHER_SUITE_CCMP: 4368 case WLAN_CIPHER_SUITE_GCMP: 4369 case WLAN_CIPHER_SUITE_GCMP_256: 4370 if (!iwl_mvm_has_new_tx_api(mvm)) 4371 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4372 break; 4373 case WLAN_CIPHER_SUITE_AES_CMAC: 4374 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4375 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4376 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4377 break; 4378 case WLAN_CIPHER_SUITE_WEP40: 4379 case WLAN_CIPHER_SUITE_WEP104: 4380 if (vif->type == NL80211_IFTYPE_STATION) 4381 break; 4382 if (iwl_mvm_has_new_tx_api(mvm)) 4383 return -EOPNOTSUPP; 4384 /* support HW crypto on TX */ 4385 return 0; 4386 default: 4387 return -EOPNOTSUPP; 4388 } 4389 4390 switch (cmd) { 4391 case SET_KEY: 4392 if (vif->type == NL80211_IFTYPE_STATION && 4393 (keyidx == 6 || keyidx == 7)) 4394 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4395 key); 4396 4397 if ((vif->type == NL80211_IFTYPE_ADHOC || 4398 vif->type == NL80211_IFTYPE_AP) && !sta) { 4399 /* 4400 * GTK on AP interface is a TX-only key, return 0; 4401 * on IBSS they're per-station and because we're lazy 4402 * we don't support them for RX, so do the same. 4403 * CMAC/GMAC in AP/IBSS modes must be done in software 4404 * on older NICs. 4405 * 4406 * Except, of course, beacon protection - it must be 4407 * offloaded since we just set a beacon template, and 4408 * then we must also offload the IGTK (not just BIGTK) 4409 * for firmware reasons. 4410 * 4411 * So just check for beacon protection - if we don't 4412 * have it we cannot get here with keyidx >= 6, and 4413 * if we do have it we need to send the key to FW in 4414 * all cases (CMAC/GMAC). 4415 */ 4416 if (!wiphy_ext_feature_isset(hw->wiphy, 4417 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4418 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4419 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4420 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4421 ret = -EOPNOTSUPP; 4422 break; 4423 } 4424 4425 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4426 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4427 !iwl_mvm_has_new_tx_api(mvm)) { 4428 key->hw_key_idx = STA_KEY_IDX_INVALID; 4429 ret = 0; 4430 break; 4431 } 4432 4433 if (!mvmvif->ap_ibss_active) { 4434 for (i = 0; 4435 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4436 i++) { 4437 if (!mvmvif->ap_early_keys[i]) { 4438 mvmvif->ap_early_keys[i] = key; 4439 break; 4440 } 4441 } 4442 4443 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4444 ret = -ENOSPC; 4445 else 4446 ret = 0; 4447 4448 break; 4449 } 4450 } 4451 4452 /* During FW restart, in order to restore the state as it was, 4453 * don't try to reprogram keys we previously failed for. 4454 */ 4455 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4456 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4457 IWL_DEBUG_MAC80211(mvm, 4458 "skip invalid idx key programming during restart\n"); 4459 ret = 0; 4460 break; 4461 } 4462 4463 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4464 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4465 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4466 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4467 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4468 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4469 struct ieee80211_key_seq seq; 4470 int tid, q; 4471 4472 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4473 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4474 mvm->trans->num_rx_queues), 4475 GFP_KERNEL); 4476 if (!ptk_pn) { 4477 ret = -ENOMEM; 4478 break; 4479 } 4480 4481 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4482 ieee80211_get_key_rx_seq(key, tid, &seq); 4483 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4484 memcpy(ptk_pn->q[q].pn[tid], 4485 seq.ccmp.pn, 4486 IEEE80211_CCMP_PN_LEN); 4487 } 4488 4489 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4490 } 4491 4492 /* in HW restart reuse the index, otherwise request a new one */ 4493 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4494 key_offset = key->hw_key_idx; 4495 else 4496 key_offset = STA_KEY_IDX_INVALID; 4497 4498 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4499 mvmsta->pairwise_cipher = key->cipher; 4500 4501 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4502 sta ? sta->addr : NULL, key->keyidx); 4503 4504 if (sec_key_ver) 4505 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4506 else 4507 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4508 4509 if (ret) { 4510 IWL_WARN(mvm, "set key failed\n"); 4511 key->hw_key_idx = STA_KEY_IDX_INVALID; 4512 if (ptk_pn) { 4513 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4514 kfree(ptk_pn); 4515 } 4516 /* 4517 * can't add key for RX, but we don't need it 4518 * in the device for TX so still return 0, 4519 * unless we have new TX API where we cannot 4520 * put key material into the TX_CMD 4521 */ 4522 if (iwl_mvm_has_new_tx_api(mvm)) 4523 ret = -EOPNOTSUPP; 4524 else 4525 ret = 0; 4526 } 4527 4528 break; 4529 case DISABLE_KEY: 4530 if (vif->type == NL80211_IFTYPE_STATION && 4531 (keyidx == 6 || keyidx == 7)) 4532 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4533 NULL); 4534 4535 ret = -ENOENT; 4536 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4537 if (mvmvif->ap_early_keys[i] == key) { 4538 mvmvif->ap_early_keys[i] = NULL; 4539 ret = 0; 4540 } 4541 } 4542 4543 /* found in pending list - don't do anything else */ 4544 if (ret == 0) 4545 break; 4546 4547 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4548 ret = 0; 4549 break; 4550 } 4551 4552 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4553 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4554 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4555 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4556 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4557 ptk_pn = rcu_dereference_protected( 4558 mvmsta->ptk_pn[keyidx], 4559 lockdep_is_held(&mvm->mutex)); 4560 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4561 if (ptk_pn) 4562 kfree_rcu(ptk_pn, rcu_head); 4563 } 4564 4565 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4566 if (sec_key_ver) 4567 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4568 else 4569 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4570 break; 4571 default: 4572 ret = -EINVAL; 4573 } 4574 4575 return ret; 4576 } 4577 4578 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4579 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4580 struct ieee80211_key_conf *key) 4581 { 4582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4583 4584 guard(mvm)(mvm); 4585 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4586 } 4587 4588 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4589 struct ieee80211_vif *vif, 4590 struct ieee80211_key_conf *keyconf, 4591 struct ieee80211_sta *sta, 4592 u32 iv32, u16 *phase1key) 4593 { 4594 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4595 4596 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4597 return; 4598 4599 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4600 } 4601 4602 4603 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4604 struct iwl_rx_packet *pkt, void *data) 4605 { 4606 struct iwl_mvm *mvm = 4607 container_of(notif_wait, struct iwl_mvm, notif_wait); 4608 struct iwl_hs20_roc_res *resp; 4609 int resp_len = iwl_rx_packet_payload_len(pkt); 4610 struct iwl_mvm_time_event_data *te_data = data; 4611 4612 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4613 return true; 4614 4615 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4616 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4617 return true; 4618 } 4619 4620 resp = (void *)pkt->data; 4621 4622 IWL_DEBUG_TE(mvm, 4623 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4624 resp->status, resp->event_unique_id); 4625 4626 te_data->uid = le32_to_cpu(resp->event_unique_id); 4627 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4628 te_data->uid); 4629 4630 spin_lock_bh(&mvm->time_event_lock); 4631 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4632 spin_unlock_bh(&mvm->time_event_lock); 4633 4634 return true; 4635 } 4636 4637 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4638 struct ieee80211_channel *channel, 4639 struct ieee80211_vif *vif, 4640 int duration) 4641 { 4642 int res; 4643 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4644 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4645 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4646 struct iwl_notification_wait wait_time_event; 4647 u32 req_dur, delay; 4648 struct iwl_hs20_roc_req aux_roc_req = { 4649 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4650 .id_and_color = 4651 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4652 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4653 }; 4654 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4655 &aux_roc_req.channel_info); 4656 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4657 4658 /* Set the channel info data */ 4659 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4660 iwl_mvm_phy_band_from_nl80211(channel->band), 4661 IWL_PHY_CHANNEL_MODE20, 4662 0); 4663 4664 /* Set the time and duration */ 4665 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4666 4667 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4668 tail->duration = cpu_to_le32(req_dur); 4669 tail->apply_time_max_delay = cpu_to_le32(delay); 4670 4671 IWL_DEBUG_TE(mvm, 4672 "ROC: Requesting to remain on channel %u for %ums\n", 4673 channel->hw_value, req_dur); 4674 IWL_DEBUG_TE(mvm, 4675 "\t(requested = %ums, max_delay = %ums)\n", 4676 duration, delay); 4677 4678 /* Set the node address */ 4679 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4680 4681 lockdep_assert_held(&mvm->mutex); 4682 4683 spin_lock_bh(&mvm->time_event_lock); 4684 4685 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4686 spin_unlock_bh(&mvm->time_event_lock); 4687 return -EIO; 4688 } 4689 4690 te_data->vif = vif; 4691 te_data->duration = duration; 4692 te_data->id = HOT_SPOT_CMD; 4693 4694 spin_unlock_bh(&mvm->time_event_lock); 4695 4696 /* 4697 * Use a notification wait, which really just processes the 4698 * command response and doesn't wait for anything, in order 4699 * to be able to process the response and get the UID inside 4700 * the RX path. Using CMD_WANT_SKB doesn't work because it 4701 * stores the buffer and then wakes up this thread, by which 4702 * time another notification (that the time event started) 4703 * might already be processed unsuccessfully. 4704 */ 4705 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4706 time_event_response, 4707 ARRAY_SIZE(time_event_response), 4708 iwl_mvm_rx_aux_roc, te_data); 4709 4710 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4711 &aux_roc_req); 4712 4713 if (res) { 4714 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4715 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4716 goto out_clear_te; 4717 } 4718 4719 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4720 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4721 /* should never fail */ 4722 WARN_ON_ONCE(res); 4723 4724 if (res) { 4725 out_clear_te: 4726 spin_lock_bh(&mvm->time_event_lock); 4727 iwl_mvm_te_clear_data(mvm, te_data); 4728 spin_unlock_bh(&mvm->time_event_lock); 4729 } 4730 4731 return res; 4732 } 4733 4734 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4735 { 4736 int ret = 0; 4737 4738 lockdep_assert_held(&mvm->mutex); 4739 4740 if (!fw_has_capa(&mvm->fw->ucode_capa, 4741 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4742 IWL_ERR(mvm, "hotspot not supported\n"); 4743 return -EINVAL; 4744 } 4745 4746 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4747 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4748 WARN(ret, "Failed to allocate aux station"); 4749 } 4750 4751 return ret; 4752 } 4753 4754 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4755 { 4756 int ret; 4757 4758 lockdep_assert_held(&mvm->mutex); 4759 4760 ret = iwl_mvm_binding_add_vif(mvm, vif); 4761 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4762 return ret; 4763 4764 /* The station and queue allocation must be done only after the binding 4765 * is done, as otherwise the FW might incorrectly configure its state. 4766 */ 4767 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4768 } 4769 4770 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4771 struct ieee80211_vif *vif, 4772 struct ieee80211_channel *channel, 4773 int duration, 4774 enum ieee80211_roc_type type) 4775 { 4776 static const struct iwl_mvm_roc_ops ops = { 4777 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4778 .link = iwl_mvm_roc_link, 4779 }; 4780 4781 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4782 } 4783 4784 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4785 struct ieee80211_channel *channel, 4786 struct ieee80211_vif *vif, 4787 int duration) 4788 { 4789 int ret; 4790 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4791 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4792 IWL_FW_CMD_VER_UNKNOWN); 4793 4794 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4795 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4796 } else if (fw_ver >= 3) { 4797 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4798 ROC_ACTIVITY_HOTSPOT); 4799 } else { 4800 ret = -EOPNOTSUPP; 4801 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4802 } 4803 4804 return ret; 4805 } 4806 4807 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4808 struct ieee80211_channel *channel, 4809 struct ieee80211_vif *vif, 4810 int duration, 4811 enum ieee80211_roc_type type) 4812 { 4813 enum iwl_roc_activity activity; 4814 int ret; 4815 4816 lockdep_assert_held(&mvm->mutex); 4817 4818 switch (type) { 4819 case IEEE80211_ROC_TYPE_NORMAL: 4820 activity = ROC_ACTIVITY_P2P_DISC; 4821 break; 4822 case IEEE80211_ROC_TYPE_MGMT_TX: 4823 activity = ROC_ACTIVITY_P2P_NEG; 4824 break; 4825 default: 4826 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4827 return -EINVAL; 4828 } 4829 4830 ret = iwl_mvm_mld_add_aux_sta(mvm, 4831 iwl_mvm_get_lmac_id(mvm, channel->band)); 4832 if (ret) 4833 return ret; 4834 4835 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4836 } 4837 4838 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4839 struct ieee80211_vif *vif, 4840 struct ieee80211_channel *channel) 4841 { 4842 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4843 struct cfg80211_chan_def chandef; 4844 int i; 4845 4846 lockdep_assert_held(&mvm->mutex); 4847 4848 if (mvmvif->deflink.phy_ctxt && 4849 channel == mvmvif->deflink.phy_ctxt->channel) 4850 return 0; 4851 4852 /* Try using a PHY context that is already in use */ 4853 for (i = 0; i < NUM_PHY_CTX; i++) { 4854 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4855 4856 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4857 continue; 4858 4859 if (channel == phy_ctxt->channel) { 4860 if (mvmvif->deflink.phy_ctxt) 4861 iwl_mvm_phy_ctxt_unref(mvm, 4862 mvmvif->deflink.phy_ctxt); 4863 4864 mvmvif->deflink.phy_ctxt = phy_ctxt; 4865 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4866 return 0; 4867 } 4868 } 4869 4870 /* We already have a phy_ctxt, but it's not on the right channel */ 4871 if (mvmvif->deflink.phy_ctxt) 4872 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4873 4874 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4875 if (!mvmvif->deflink.phy_ctxt) 4876 return -ENOSPC; 4877 4878 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4879 4880 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4881 &chandef, NULL, 1, 1); 4882 } 4883 4884 /* Execute the common part for MLD and non-MLD modes */ 4885 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4886 struct ieee80211_channel *channel, int duration, 4887 enum ieee80211_roc_type type, 4888 const struct iwl_mvm_roc_ops *ops) 4889 { 4890 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4891 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); 4892 u32 lmac_id; 4893 int ret; 4894 4895 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4896 duration, type); 4897 4898 /* 4899 * Flush the done work, just in case it's still pending, so that 4900 * the work it does can complete and we can accept new frames. 4901 */ 4902 flush_work(&mvm->roc_done_wk); 4903 4904 if (!IS_ERR_OR_NULL(bss_vif)) { 4905 ret = iwl_mvm_block_esr_sync(mvm, bss_vif, 4906 IWL_MVM_ESR_BLOCKED_ROC); 4907 if (ret) 4908 return ret; 4909 } 4910 4911 guard(mvm)(mvm); 4912 4913 switch (vif->type) { 4914 case NL80211_IFTYPE_STATION: 4915 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4916 4917 /* Use aux roc framework (HS20) */ 4918 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4919 if (!ret) 4920 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4921 return ret; 4922 case NL80211_IFTYPE_P2P_DEVICE: 4923 /* handle below */ 4924 break; 4925 default: 4926 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4927 return -EINVAL; 4928 } 4929 4930 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4931 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4932 return ret; 4933 } 4934 4935 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4936 if (ret) 4937 return ret; 4938 4939 ret = ops->link(mvm, vif); 4940 if (ret) 4941 return ret; 4942 4943 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4944 } 4945 4946 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4947 struct ieee80211_vif *vif) 4948 { 4949 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4950 4951 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4952 4953 iwl_mvm_stop_roc(mvm, vif); 4954 4955 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4956 return 0; 4957 } 4958 4959 struct iwl_mvm_ftm_responder_iter_data { 4960 bool responder; 4961 struct ieee80211_chanctx_conf *ctx; 4962 }; 4963 4964 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4965 struct ieee80211_vif *vif) 4966 { 4967 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4968 4969 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4970 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4971 data->responder = true; 4972 } 4973 4974 bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4975 struct ieee80211_chanctx_conf *ctx) 4976 { 4977 struct iwl_mvm_ftm_responder_iter_data data = { 4978 .responder = false, 4979 .ctx = ctx, 4980 }; 4981 4982 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4983 IEEE80211_IFACE_ITER_NORMAL, 4984 iwl_mvm_ftm_responder_chanctx_iter, 4985 &data); 4986 return data.responder; 4987 } 4988 4989 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4990 struct ieee80211_chanctx_conf *ctx) 4991 { 4992 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4993 struct iwl_mvm_phy_ctxt *phy_ctxt; 4994 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4995 int ret; 4996 4997 lockdep_assert_held(&mvm->mutex); 4998 4999 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 5000 5001 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 5002 if (!phy_ctxt) { 5003 ret = -ENOSPC; 5004 goto out; 5005 } 5006 5007 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 5008 ctx->rx_chains_static, 5009 ctx->rx_chains_dynamic); 5010 if (ret) { 5011 IWL_ERR(mvm, "Failed to add PHY context\n"); 5012 goto out; 5013 } 5014 5015 *phy_ctxt_id = phy_ctxt->id; 5016 out: 5017 return ret; 5018 } 5019 5020 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 5021 struct ieee80211_chanctx_conf *ctx) 5022 { 5023 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5024 5025 guard(mvm)(mvm); 5026 return __iwl_mvm_add_chanctx(mvm, ctx); 5027 } 5028 5029 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 5030 struct ieee80211_chanctx_conf *ctx) 5031 { 5032 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5033 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5034 5035 lockdep_assert_held(&mvm->mutex); 5036 5037 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 5038 } 5039 5040 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 5041 struct ieee80211_chanctx_conf *ctx) 5042 { 5043 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5044 5045 guard(mvm)(mvm); 5046 __iwl_mvm_remove_chanctx(mvm, ctx); 5047 } 5048 5049 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 5050 struct ieee80211_chanctx_conf *ctx, u32 changed) 5051 { 5052 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5053 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5054 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5055 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5056 5057 if (WARN_ONCE((phy_ctxt->ref > 1) && 5058 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 5059 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 5060 IEEE80211_CHANCTX_CHANGE_RADAR | 5061 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 5062 "Cannot change PHY. Ref=%d, changed=0x%X\n", 5063 phy_ctxt->ref, changed)) 5064 return; 5065 5066 guard(mvm)(mvm); 5067 5068 /* we are only changing the min_width, may be a noop */ 5069 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 5070 if (phy_ctxt->width == def->width) 5071 return; 5072 5073 /* we are just toggling between 20_NOHT and 20 */ 5074 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5075 def->width <= NL80211_CHAN_WIDTH_20) 5076 return; 5077 } 5078 5079 iwl_mvm_bt_coex_vif_change(mvm); 5080 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5081 ctx->rx_chains_static, 5082 ctx->rx_chains_dynamic); 5083 } 5084 5085 /* 5086 * This function executes the common part for MLD and non-MLD modes. 5087 * 5088 * Returns true if we're done assigning the chanctx 5089 * (either on failure or success) 5090 */ 5091 static bool 5092 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5093 struct ieee80211_vif *vif, 5094 struct ieee80211_chanctx_conf *ctx, 5095 bool switching_chanctx, int *ret) 5096 { 5097 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5098 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5099 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5100 5101 lockdep_assert_held(&mvm->mutex); 5102 5103 mvmvif->deflink.phy_ctxt = phy_ctxt; 5104 5105 switch (vif->type) { 5106 case NL80211_IFTYPE_AP: 5107 /* only needed if we're switching chanctx (i.e. during CSA) */ 5108 if (switching_chanctx) { 5109 mvmvif->ap_ibss_active = true; 5110 break; 5111 } 5112 fallthrough; 5113 case NL80211_IFTYPE_ADHOC: 5114 /* 5115 * The AP binding flow is handled as part of the start_ap flow 5116 * (in bss_info_changed), similarly for IBSS. 5117 */ 5118 *ret = 0; 5119 return true; 5120 case NL80211_IFTYPE_STATION: 5121 break; 5122 case NL80211_IFTYPE_MONITOR: 5123 /* always disable PS when a monitor interface is active */ 5124 mvmvif->ps_disabled = true; 5125 break; 5126 default: 5127 *ret = -EINVAL; 5128 return true; 5129 } 5130 return false; 5131 } 5132 5133 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5134 struct ieee80211_vif *vif, 5135 struct ieee80211_bss_conf *link_conf, 5136 struct ieee80211_chanctx_conf *ctx, 5137 bool switching_chanctx) 5138 { 5139 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5140 int ret; 5141 5142 if (WARN_ON(!link_conf)) 5143 return -EINVAL; 5144 5145 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5146 switching_chanctx, &ret)) 5147 goto out; 5148 5149 ret = iwl_mvm_binding_add_vif(mvm, vif); 5150 if (ret) 5151 goto out; 5152 5153 /* 5154 * Power state must be updated before quotas, 5155 * otherwise fw will complain. 5156 */ 5157 iwl_mvm_power_update_mac(mvm); 5158 5159 /* Setting the quota at this stage is only required for monitor 5160 * interfaces. For the other types, the bss_info changed flow 5161 * will handle quota settings. 5162 */ 5163 if (vif->type == NL80211_IFTYPE_MONITOR) { 5164 mvmvif->monitor_active = true; 5165 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5166 if (ret) 5167 goto out_remove_binding; 5168 5169 ret = iwl_mvm_add_snif_sta(mvm, vif); 5170 if (ret) 5171 goto out_remove_binding; 5172 5173 } 5174 5175 /* Handle binding during CSA */ 5176 if (vif->type == NL80211_IFTYPE_AP) { 5177 iwl_mvm_update_quotas(mvm, false, NULL); 5178 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5179 } 5180 5181 if (vif->type == NL80211_IFTYPE_STATION) { 5182 if (!switching_chanctx) { 5183 mvmvif->csa_bcn_pending = false; 5184 goto out; 5185 } 5186 5187 mvmvif->csa_bcn_pending = true; 5188 5189 if (!fw_has_capa(&mvm->fw->ucode_capa, 5190 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5191 u32 duration = 5 * vif->bss_conf.beacon_int; 5192 5193 /* Protect the session to make sure we hear the first 5194 * beacon on the new channel. 5195 */ 5196 iwl_mvm_protect_session(mvm, vif, duration, duration, 5197 vif->bss_conf.beacon_int / 2, 5198 true); 5199 } 5200 5201 iwl_mvm_update_quotas(mvm, false, NULL); 5202 5203 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5204 link_conf, 5205 false); 5206 } 5207 5208 goto out; 5209 5210 out_remove_binding: 5211 iwl_mvm_binding_remove_vif(mvm, vif); 5212 iwl_mvm_power_update_mac(mvm); 5213 out: 5214 if (ret) 5215 mvmvif->deflink.phy_ctxt = NULL; 5216 return ret; 5217 } 5218 5219 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5220 struct ieee80211_vif *vif, 5221 struct ieee80211_bss_conf *link_conf, 5222 struct ieee80211_chanctx_conf *ctx) 5223 { 5224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5225 5226 guard(mvm)(mvm); 5227 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5228 } 5229 5230 /* 5231 * This function executes the common part for MLD and non-MLD modes. 5232 * 5233 * Returns if chanctx unassign chanctx is done 5234 * (either on failure or success) 5235 */ 5236 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5237 struct ieee80211_vif *vif, 5238 bool switching_chanctx) 5239 { 5240 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5241 5242 lockdep_assert_held(&mvm->mutex); 5243 iwl_mvm_remove_time_event(mvm, mvmvif, 5244 &mvmvif->time_event_data); 5245 5246 switch (vif->type) { 5247 case NL80211_IFTYPE_ADHOC: 5248 return true; 5249 case NL80211_IFTYPE_MONITOR: 5250 mvmvif->monitor_active = false; 5251 mvmvif->ps_disabled = false; 5252 break; 5253 case NL80211_IFTYPE_AP: 5254 /* This part is triggered only during CSA */ 5255 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5256 return true; 5257 5258 mvmvif->csa_countdown = false; 5259 5260 /* Set CS bit on all the stations */ 5261 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5262 5263 /* Save blocked iface, the timeout is set on the next beacon */ 5264 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5265 5266 mvmvif->ap_ibss_active = false; 5267 break; 5268 default: 5269 break; 5270 } 5271 return false; 5272 } 5273 5274 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5275 struct ieee80211_vif *vif, 5276 struct ieee80211_bss_conf *link_conf, 5277 struct ieee80211_chanctx_conf *ctx, 5278 bool switching_chanctx) 5279 { 5280 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5281 struct ieee80211_vif *disabled_vif = NULL; 5282 5283 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5284 goto out; 5285 5286 if (vif->type == NL80211_IFTYPE_MONITOR) 5287 iwl_mvm_rm_snif_sta(mvm, vif); 5288 5289 5290 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5291 disabled_vif = vif; 5292 if (!fw_has_capa(&mvm->fw->ucode_capa, 5293 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5294 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5295 } 5296 5297 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5298 iwl_mvm_binding_remove_vif(mvm, vif); 5299 5300 out: 5301 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5302 switching_chanctx) 5303 return; 5304 mvmvif->deflink.phy_ctxt = NULL; 5305 iwl_mvm_power_update_mac(mvm); 5306 } 5307 5308 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5309 struct ieee80211_vif *vif, 5310 struct ieee80211_bss_conf *link_conf, 5311 struct ieee80211_chanctx_conf *ctx) 5312 { 5313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5314 5315 guard(mvm)(mvm); 5316 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5317 } 5318 5319 static int 5320 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5321 struct ieee80211_vif_chanctx_switch *vifs, 5322 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5323 { 5324 int ret; 5325 5326 guard(mvm)(mvm); 5327 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5328 vifs[0].old_ctx, true); 5329 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5330 5331 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5332 if (ret) { 5333 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5334 goto out_reassign; 5335 } 5336 5337 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5338 vifs[0].new_ctx, true); 5339 if (ret) { 5340 IWL_ERR(mvm, 5341 "failed to assign new_ctx during channel switch\n"); 5342 goto out_remove; 5343 } 5344 5345 /* we don't support TDLS during DCM - can be caused by channel switch */ 5346 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5347 iwl_mvm_teardown_tdls_peers(mvm); 5348 5349 return 0; 5350 5351 out_remove: 5352 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5353 5354 out_reassign: 5355 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5356 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5357 goto out_restart; 5358 } 5359 5360 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5361 vifs[0].old_ctx, true)) { 5362 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5363 goto out_restart; 5364 } 5365 5366 return ret; 5367 5368 out_restart: 5369 /* things keep failing, better restart the hw */ 5370 iwl_mvm_nic_restart(mvm, false); 5371 return ret; 5372 } 5373 5374 static int 5375 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5376 struct ieee80211_vif_chanctx_switch *vifs, 5377 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5378 { 5379 int ret; 5380 5381 guard(mvm)(mvm); 5382 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5383 vifs[0].old_ctx, true); 5384 5385 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5386 vifs[0].new_ctx, true); 5387 if (ret) { 5388 IWL_ERR(mvm, 5389 "failed to assign new_ctx during channel switch\n"); 5390 goto out_reassign; 5391 } 5392 5393 return 0; 5394 5395 out_reassign: 5396 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5397 vifs[0].old_ctx, true)) { 5398 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5399 goto out_restart; 5400 } 5401 5402 return ret; 5403 5404 out_restart: 5405 /* things keep failing, better restart the hw */ 5406 iwl_mvm_nic_restart(mvm, false); 5407 return ret; 5408 } 5409 5410 /* Execute the common part for both MLD and non-MLD modes */ 5411 int 5412 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5413 struct ieee80211_vif_chanctx_switch *vifs, 5414 int n_vifs, 5415 enum ieee80211_chanctx_switch_mode mode, 5416 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5417 { 5418 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5419 int ret; 5420 5421 /* we only support a single-vif right now */ 5422 if (n_vifs > 1) 5423 return -EOPNOTSUPP; 5424 5425 switch (mode) { 5426 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5427 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5428 break; 5429 case CHANCTX_SWMODE_REASSIGN_VIF: 5430 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5431 break; 5432 default: 5433 ret = -EOPNOTSUPP; 5434 break; 5435 } 5436 5437 return ret; 5438 } 5439 5440 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5441 struct ieee80211_vif_chanctx_switch *vifs, 5442 int n_vifs, 5443 enum ieee80211_chanctx_switch_mode mode) 5444 { 5445 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5446 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5447 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5448 }; 5449 5450 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5451 } 5452 5453 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5454 { 5455 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5456 5457 return mvm->ibss_manager; 5458 } 5459 5460 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5461 bool set) 5462 { 5463 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5464 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5465 5466 if (!mvm_sta || !mvm_sta->vif) { 5467 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5468 return -EINVAL; 5469 } 5470 5471 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5472 &mvm_sta->vif->bss_conf); 5473 } 5474 5475 #ifdef CONFIG_NL80211_TESTMODE 5476 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5477 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5478 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5479 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5480 }; 5481 5482 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5483 struct ieee80211_vif *vif, 5484 void *data, int len) 5485 { 5486 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5487 int err; 5488 u32 noa_duration; 5489 5490 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5491 iwl_mvm_tm_policy, NULL); 5492 if (err) 5493 return err; 5494 5495 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5496 return -EINVAL; 5497 5498 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5499 case IWL_MVM_TM_CMD_SET_NOA: 5500 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5501 !vif->bss_conf.enable_beacon || 5502 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5503 return -EINVAL; 5504 5505 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5506 if (noa_duration >= vif->bss_conf.beacon_int) 5507 return -EINVAL; 5508 5509 mvm->noa_duration = noa_duration; 5510 mvm->noa_vif = vif; 5511 5512 return iwl_mvm_update_quotas(mvm, true, NULL); 5513 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5514 /* must be associated client vif - ignore authorized */ 5515 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5516 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5517 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5518 return -EINVAL; 5519 5520 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5521 return iwl_mvm_enable_beacon_filter(mvm, vif); 5522 return iwl_mvm_disable_beacon_filter(mvm, vif); 5523 } 5524 5525 return -EOPNOTSUPP; 5526 } 5527 5528 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5529 struct ieee80211_vif *vif, 5530 void *data, int len) 5531 { 5532 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5533 5534 guard(mvm)(mvm); 5535 return __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5536 } 5537 #endif 5538 5539 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5540 struct ieee80211_channel_switch *chsw) 5541 { 5542 /* By implementing this operation, we prevent mac80211 from 5543 * starting its own channel switch timer, so that we can call 5544 * ieee80211_chswitch_done() ourselves at the right time 5545 * (which is when the absence time event starts). 5546 */ 5547 5548 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5549 "dummy channel switch op\n"); 5550 } 5551 5552 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5553 struct ieee80211_vif *vif, 5554 struct ieee80211_channel_switch *chsw) 5555 { 5556 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5557 struct iwl_chan_switch_te_cmd cmd = { 5558 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5559 mvmvif->color)), 5560 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5561 .tsf = cpu_to_le32(chsw->timestamp), 5562 .cs_count = chsw->count, 5563 .cs_mode = chsw->block_tx, 5564 }; 5565 5566 lockdep_assert_held(&mvm->mutex); 5567 5568 if (chsw->delay) 5569 cmd.cs_delayed_bcn_count = 5570 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5571 5572 return iwl_mvm_send_cmd_pdu(mvm, 5573 WIDE_ID(MAC_CONF_GROUP, 5574 CHANNEL_SWITCH_TIME_EVENT_CMD), 5575 0, sizeof(cmd), &cmd); 5576 } 5577 5578 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5579 struct ieee80211_vif *vif, 5580 struct ieee80211_channel_switch *chsw) 5581 { 5582 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5583 u32 apply_time; 5584 5585 /* Schedule the time event to a bit before beacon 1, 5586 * to make sure we're in the new channel when the 5587 * GO/AP arrives. In case count <= 1 immediately schedule the 5588 * TE (this might result with some packet loss or connection 5589 * loss). 5590 */ 5591 if (chsw->count <= 1) 5592 apply_time = 0; 5593 else 5594 apply_time = chsw->device_timestamp + 5595 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5596 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5597 5598 if (chsw->block_tx) 5599 iwl_mvm_csa_client_absent(mvm, vif); 5600 5601 if (mvmvif->bf_enabled) { 5602 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5603 5604 if (ret) 5605 return ret; 5606 } 5607 5608 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5609 apply_time); 5610 5611 return 0; 5612 } 5613 5614 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5615 { 5616 int i; 5617 5618 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5619 struct iwl_mvm_txq *mvmtxq = 5620 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5621 5622 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5623 } 5624 } 5625 5626 #define IWL_MAX_CSA_BLOCK_TX 1500 5627 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5628 struct ieee80211_vif *vif, 5629 struct ieee80211_channel_switch *chsw) 5630 { 5631 struct ieee80211_vif *csa_vif; 5632 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5633 struct iwl_mvm_txq *mvmtxq; 5634 int ret; 5635 5636 lockdep_assert_held(&mvm->mutex); 5637 5638 mvmvif->csa_failed = false; 5639 mvmvif->csa_blocks_tx = false; 5640 5641 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5642 chsw->chandef.center_freq1); 5643 5644 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5645 ieee80211_vif_to_wdev(vif), 5646 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5647 5648 switch (vif->type) { 5649 case NL80211_IFTYPE_AP: 5650 csa_vif = 5651 rcu_dereference_protected(mvm->csa_vif, 5652 lockdep_is_held(&mvm->mutex)); 5653 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5654 "Another CSA is already in progress")) 5655 return -EBUSY; 5656 5657 /* we still didn't unblock tx. prevent new CS meanwhile */ 5658 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5659 lockdep_is_held(&mvm->mutex))) 5660 return -EBUSY; 5661 5662 rcu_assign_pointer(mvm->csa_vif, vif); 5663 5664 if (WARN_ONCE(mvmvif->csa_countdown, 5665 "Previous CSA countdown didn't complete")) 5666 return -EBUSY; 5667 5668 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5669 5670 if (!chsw->block_tx) 5671 break; 5672 /* don't need blocking in driver otherwise - mac80211 will do */ 5673 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5674 break; 5675 5676 mvmvif->csa_blocks_tx = true; 5677 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5678 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5679 ieee80211_iterate_stations_atomic(mvm->hw, 5680 iwl_mvm_csa_block_txqs, 5681 NULL); 5682 break; 5683 case NL80211_IFTYPE_STATION: 5684 mvmvif->csa_blocks_tx = chsw->block_tx; 5685 5686 /* 5687 * In the new flow FW is in charge of timing the switch so there 5688 * is no need for all of this 5689 */ 5690 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5691 CHANNEL_SWITCH_ERROR_NOTIF, 5692 0)) 5693 break; 5694 5695 /* 5696 * We haven't configured the firmware to be associated yet since 5697 * we don't know the dtim period. In this case, the firmware can't 5698 * track the beacons. 5699 */ 5700 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5701 return -EBUSY; 5702 5703 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5704 hweight16(vif->valid_links) <= 1) 5705 schedule_delayed_work(&mvmvif->csa_work, 0); 5706 5707 if (chsw->block_tx) { 5708 /* 5709 * In case of undetermined / long time with immediate 5710 * quiet monitor status to gracefully disconnect 5711 */ 5712 if (!chsw->count || 5713 chsw->count * vif->bss_conf.beacon_int > 5714 IWL_MAX_CSA_BLOCK_TX) 5715 schedule_delayed_work(&mvmvif->csa_work, 5716 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5717 } 5718 5719 if (!fw_has_capa(&mvm->fw->ucode_capa, 5720 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5721 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5722 if (ret) 5723 return ret; 5724 } else { 5725 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5726 } 5727 5728 mvmvif->csa_count = chsw->count; 5729 mvmvif->csa_misbehave = false; 5730 break; 5731 default: 5732 break; 5733 } 5734 5735 mvmvif->ps_disabled = true; 5736 5737 ret = iwl_mvm_power_update_ps(mvm); 5738 if (ret) 5739 return ret; 5740 5741 /* we won't be on this channel any longer */ 5742 iwl_mvm_teardown_tdls_peers(mvm); 5743 5744 return ret; 5745 } 5746 5747 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5748 struct ieee80211_vif *vif, 5749 struct ieee80211_channel_switch *chsw) 5750 { 5751 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5752 5753 guard(mvm)(mvm); 5754 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5755 } 5756 5757 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5758 struct ieee80211_vif *vif, 5759 struct ieee80211_channel_switch *chsw) 5760 { 5761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5762 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5763 struct iwl_chan_switch_te_cmd cmd = { 5764 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5765 mvmvif->color)), 5766 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5767 .tsf = cpu_to_le32(chsw->timestamp), 5768 .cs_count = chsw->count, 5769 .cs_mode = chsw->block_tx, 5770 }; 5771 5772 /* 5773 * In the new flow FW is in charge of timing the switch so there is no 5774 * need for all of this 5775 */ 5776 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5777 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5778 return; 5779 5780 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5781 return; 5782 5783 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5784 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5785 5786 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5787 if (mvmvif->csa_misbehave) { 5788 struct ieee80211_bss_conf *link_conf; 5789 5790 /* Second time, give up on this AP*/ 5791 5792 link_conf = wiphy_dereference(hw->wiphy, 5793 vif->link_conf[chsw->link_id]); 5794 if (WARN_ON(!link_conf)) 5795 return; 5796 5797 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5798 ieee80211_chswitch_done(vif, false, 0); 5799 mvmvif->csa_misbehave = false; 5800 return; 5801 } 5802 mvmvif->csa_misbehave = true; 5803 } 5804 mvmvif->csa_count = chsw->count; 5805 5806 guard(mvm)(mvm); 5807 if (mvmvif->csa_failed) 5808 return; 5809 5810 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5811 WIDE_ID(MAC_CONF_GROUP, 5812 CHANNEL_SWITCH_TIME_EVENT_CMD), 5813 0, sizeof(cmd), &cmd)); 5814 } 5815 5816 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5817 { 5818 int i; 5819 5820 if (!iwl_mvm_has_new_tx_api(mvm)) { 5821 /* we can't ask the firmware anything if it is dead */ 5822 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5823 &mvm->status)) 5824 return; 5825 if (drop) { 5826 guard(mvm)(mvm); 5827 iwl_mvm_flush_tx_path(mvm, 5828 iwl_mvm_flushable_queues(mvm) & queues); 5829 } else { 5830 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5831 } 5832 return; 5833 } 5834 5835 guard(mvm)(mvm); 5836 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5837 struct ieee80211_sta *sta; 5838 5839 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5840 lockdep_is_held(&mvm->mutex)); 5841 if (IS_ERR_OR_NULL(sta)) 5842 continue; 5843 5844 if (drop) 5845 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5846 else 5847 iwl_mvm_wait_sta_queues_empty(mvm, 5848 iwl_mvm_sta_from_mac80211(sta)); 5849 } 5850 } 5851 5852 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5853 u32 queues, bool drop) 5854 { 5855 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5856 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5857 struct iwl_mvm_sta *mvmsta; 5858 struct ieee80211_sta *sta; 5859 bool ap_sta_done = false; 5860 int i; 5861 u32 msk = 0; 5862 5863 if (!vif) { 5864 iwl_mvm_flush_no_vif(mvm, queues, drop); 5865 return; 5866 } 5867 5868 if (!drop && hweight16(vif->active_links) <= 1) { 5869 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5870 struct ieee80211_bss_conf *link_conf; 5871 5872 link_conf = wiphy_dereference(hw->wiphy, 5873 vif->link_conf[link_id]); 5874 if (WARN_ON(!link_conf)) 5875 return; 5876 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5877 drop = true; 5878 } 5879 5880 /* Make sure we're done with the deferred traffic before flushing */ 5881 flush_work(&mvm->add_stream_wk); 5882 5883 mutex_lock(&mvm->mutex); 5884 5885 /* flush the AP-station and all TDLS peers */ 5886 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5887 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5888 lockdep_is_held(&mvm->mutex)); 5889 if (IS_ERR_OR_NULL(sta)) 5890 continue; 5891 5892 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5893 if (mvmsta->vif != vif) 5894 continue; 5895 5896 if (sta == mvmvif->ap_sta) { 5897 if (ap_sta_done) 5898 continue; 5899 ap_sta_done = true; 5900 } 5901 5902 if (drop) { 5903 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5904 mvmsta->tfd_queue_msk)) 5905 IWL_ERR(mvm, "flush request fail\n"); 5906 } else { 5907 if (iwl_mvm_has_new_tx_api(mvm)) 5908 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5909 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5910 msk |= mvmsta->tfd_queue_msk; 5911 } 5912 } 5913 5914 mutex_unlock(&mvm->mutex); 5915 5916 /* this can take a while, and we may need/want other operations 5917 * to succeed while doing this, so do it without the mutex held 5918 * If the firmware is dead, this can't work... 5919 */ 5920 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5921 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5922 &mvm->status)) 5923 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5924 } 5925 5926 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5927 struct ieee80211_sta *sta) 5928 { 5929 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5930 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5931 struct iwl_mvm_link_sta *mvm_link_sta; 5932 struct ieee80211_link_sta *link_sta; 5933 int link_id; 5934 5935 guard(mvm)(mvm); 5936 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5937 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5938 lockdep_is_held(&mvm->mutex)); 5939 if (!mvm_link_sta) 5940 continue; 5941 5942 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5943 mvmsta->tfd_queue_msk)) 5944 IWL_ERR(mvm, "flush request fail\n"); 5945 } 5946 } 5947 5948 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 5949 struct survey_info *survey) 5950 { 5951 int chan_idx; 5952 enum nl80211_band band; 5953 int ret; 5954 5955 mutex_lock(&mvm->mutex); 5956 5957 if (!mvm->acs_survey) { 5958 ret = -ENOENT; 5959 goto out; 5960 } 5961 5962 /* Find and return the next entry that has a non-zero active time */ 5963 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5964 struct ieee80211_supported_band *sband = 5965 mvm->hw->wiphy->bands[band]; 5966 5967 if (!sband) 5968 continue; 5969 5970 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 5971 struct iwl_mvm_acs_survey_channel *info = 5972 &mvm->acs_survey->bands[band][chan_idx]; 5973 5974 if (!info->time) 5975 continue; 5976 5977 /* Found (the next) channel to report */ 5978 survey->channel = &sband->channels[chan_idx]; 5979 survey->filled = SURVEY_INFO_TIME | 5980 SURVEY_INFO_TIME_BUSY | 5981 SURVEY_INFO_TIME_RX | 5982 SURVEY_INFO_TIME_TX; 5983 survey->time = info->time; 5984 survey->time_busy = info->time_busy; 5985 survey->time_rx = info->time_rx; 5986 survey->time_tx = info->time_tx; 5987 survey->noise = info->noise; 5988 if (survey->noise < 0) 5989 survey->filled |= SURVEY_INFO_NOISE_DBM; 5990 5991 /* Clear time so that channel is only reported once */ 5992 info->time = 0; 5993 5994 ret = 0; 5995 goto out; 5996 } 5997 } 5998 5999 ret = -ENOENT; 6000 6001 out: 6002 mutex_unlock(&mvm->mutex); 6003 6004 return ret; 6005 } 6006 6007 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 6008 struct survey_info *survey) 6009 { 6010 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6011 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 6012 WIDE_ID(SYSTEM_GROUP, 6013 SYSTEM_STATISTICS_CMD), 6014 IWL_FW_CMD_VER_UNKNOWN); 6015 6016 memset(survey, 0, sizeof(*survey)); 6017 6018 if (!fw_has_capa(&mvm->fw->ucode_capa, 6019 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 6020 return -ENOENT; 6021 6022 /* 6023 * Return the beacon stats at index zero and pass on following indices 6024 * to the function returning the full survey, most likely for ACS 6025 * (Automatic Channel Selection). 6026 */ 6027 if (idx > 0) 6028 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 6029 6030 guard(mvm)(mvm); 6031 6032 if (iwl_mvm_firmware_running(mvm)) { 6033 int ret = iwl_mvm_request_statistics(mvm, false); 6034 6035 if (ret) 6036 return ret; 6037 } 6038 6039 survey->filled = SURVEY_INFO_TIME_RX | 6040 SURVEY_INFO_TIME_TX; 6041 6042 survey->time_rx = mvm->accu_radio_stats.rx_time + 6043 mvm->radio_stats.rx_time; 6044 do_div(survey->time_rx, USEC_PER_MSEC); 6045 6046 survey->time_tx = mvm->accu_radio_stats.tx_time + 6047 mvm->radio_stats.tx_time; 6048 do_div(survey->time_tx, USEC_PER_MSEC); 6049 6050 /* the new fw api doesn't support the following fields */ 6051 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 6052 return 0; 6053 6054 survey->filled |= SURVEY_INFO_TIME | 6055 SURVEY_INFO_TIME_SCAN; 6056 survey->time = mvm->accu_radio_stats.on_time_rf + 6057 mvm->radio_stats.on_time_rf; 6058 do_div(survey->time, USEC_PER_MSEC); 6059 6060 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 6061 mvm->radio_stats.on_time_scan; 6062 do_div(survey->time_scan, USEC_PER_MSEC); 6063 6064 return 0; 6065 } 6066 6067 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 6068 { 6069 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 6070 u32 gi_ltf; 6071 6072 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 6073 case RATE_MCS_CHAN_WIDTH_20: 6074 rinfo->bw = RATE_INFO_BW_20; 6075 break; 6076 case RATE_MCS_CHAN_WIDTH_40: 6077 rinfo->bw = RATE_INFO_BW_40; 6078 break; 6079 case RATE_MCS_CHAN_WIDTH_80: 6080 rinfo->bw = RATE_INFO_BW_80; 6081 break; 6082 case RATE_MCS_CHAN_WIDTH_160: 6083 rinfo->bw = RATE_INFO_BW_160; 6084 break; 6085 case RATE_MCS_CHAN_WIDTH_320: 6086 rinfo->bw = RATE_INFO_BW_320; 6087 break; 6088 } 6089 6090 if (format == RATE_MCS_CCK_MSK || 6091 format == RATE_MCS_LEGACY_OFDM_MSK) { 6092 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 6093 6094 /* add the offset needed to get to the legacy ofdm indices */ 6095 if (format == RATE_MCS_LEGACY_OFDM_MSK) 6096 rate += IWL_FIRST_OFDM_RATE; 6097 6098 switch (rate) { 6099 case IWL_RATE_1M_INDEX: 6100 rinfo->legacy = 10; 6101 break; 6102 case IWL_RATE_2M_INDEX: 6103 rinfo->legacy = 20; 6104 break; 6105 case IWL_RATE_5M_INDEX: 6106 rinfo->legacy = 55; 6107 break; 6108 case IWL_RATE_11M_INDEX: 6109 rinfo->legacy = 110; 6110 break; 6111 case IWL_RATE_6M_INDEX: 6112 rinfo->legacy = 60; 6113 break; 6114 case IWL_RATE_9M_INDEX: 6115 rinfo->legacy = 90; 6116 break; 6117 case IWL_RATE_12M_INDEX: 6118 rinfo->legacy = 120; 6119 break; 6120 case IWL_RATE_18M_INDEX: 6121 rinfo->legacy = 180; 6122 break; 6123 case IWL_RATE_24M_INDEX: 6124 rinfo->legacy = 240; 6125 break; 6126 case IWL_RATE_36M_INDEX: 6127 rinfo->legacy = 360; 6128 break; 6129 case IWL_RATE_48M_INDEX: 6130 rinfo->legacy = 480; 6131 break; 6132 case IWL_RATE_54M_INDEX: 6133 rinfo->legacy = 540; 6134 } 6135 return; 6136 } 6137 6138 rinfo->nss = u32_get_bits(rate_n_flags, 6139 RATE_MCS_NSS_MSK) + 1; 6140 rinfo->mcs = format == RATE_MCS_HT_MSK ? 6141 RATE_HT_MCS_INDEX(rate_n_flags) : 6142 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6143 6144 if (rate_n_flags & RATE_MCS_SGI_MSK) 6145 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6146 6147 switch (format) { 6148 case RATE_MCS_EHT_MSK: 6149 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6150 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6151 break; 6152 case RATE_MCS_HE_MSK: 6153 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6154 6155 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6156 6157 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6158 rinfo->bw = RATE_INFO_BW_HE_RU; 6159 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6160 } 6161 6162 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6163 case RATE_MCS_HE_TYPE_SU: 6164 case RATE_MCS_HE_TYPE_EXT_SU: 6165 if (gi_ltf == 0 || gi_ltf == 1) 6166 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6167 else if (gi_ltf == 2) 6168 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6169 else if (gi_ltf == 3) 6170 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6171 else 6172 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6173 break; 6174 case RATE_MCS_HE_TYPE_MU: 6175 if (gi_ltf == 0 || gi_ltf == 1) 6176 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6177 else if (gi_ltf == 2) 6178 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6179 else 6180 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6181 break; 6182 case RATE_MCS_HE_TYPE_TRIG: 6183 if (gi_ltf == 0 || gi_ltf == 1) 6184 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6185 else 6186 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6187 break; 6188 } 6189 6190 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6191 rinfo->he_dcm = 1; 6192 break; 6193 case RATE_MCS_HT_MSK: 6194 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6195 break; 6196 case RATE_MCS_VHT_MSK: 6197 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6198 break; 6199 } 6200 } 6201 6202 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6203 struct ieee80211_vif *vif, 6204 struct ieee80211_sta *sta, 6205 struct station_info *sinfo) 6206 { 6207 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6208 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6209 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6210 int i; 6211 6212 if (mvmsta->deflink.avg_energy) { 6213 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6214 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6215 } 6216 6217 if (iwl_mvm_has_tlc_offload(mvm)) { 6218 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6219 6220 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6221 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6222 } 6223 6224 /* if beacon filtering isn't on mac80211 does it anyway */ 6225 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6226 return; 6227 6228 if (!vif->cfg.assoc) 6229 return; 6230 6231 guard(mvm)(mvm); 6232 6233 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 6234 return; 6235 6236 if (iwl_mvm_request_statistics(mvm, false)) 6237 return; 6238 6239 sinfo->rx_beacon = 0; 6240 for_each_mvm_vif_valid_link(mvmvif, i) 6241 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6242 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6243 6244 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6245 if (mvmvif->deflink.beacon_stats.avg_signal) { 6246 /* firmware only reports a value after RXing a few beacons */ 6247 sinfo->rx_beacon_signal_avg = 6248 mvmvif->deflink.beacon_stats.avg_signal; 6249 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6250 } 6251 } 6252 6253 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6254 struct ieee80211_vif *vif, 6255 const struct ieee80211_mlme_event *mlme) 6256 { 6257 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6258 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6259 iwl_dbg_tlv_time_point(&mvm->fwrt, 6260 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6261 NULL); 6262 return; 6263 } 6264 6265 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6266 iwl_dbg_tlv_time_point(&mvm->fwrt, 6267 IWL_FW_INI_TIME_POINT_DEASSOC, 6268 NULL); 6269 return; 6270 } 6271 } 6272 6273 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6274 struct ieee80211_vif *vif, 6275 const struct ieee80211_event *event) 6276 { 6277 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6278 do { \ 6279 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6280 break; \ 6281 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6282 } while (0) 6283 6284 struct iwl_fw_dbg_trigger_tlv *trig; 6285 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6286 6287 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6288 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6289 return; 6290 } 6291 6292 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6293 FW_DBG_TRIGGER_MLME); 6294 if (!trig) 6295 return; 6296 6297 trig_mlme = (void *)trig->data; 6298 6299 if (event->u.mlme.data == ASSOC_EVENT) { 6300 if (event->u.mlme.status == MLME_DENIED) 6301 CHECK_MLME_TRIGGER(stop_assoc_denied, 6302 "DENIED ASSOC: reason %d", 6303 event->u.mlme.reason); 6304 else if (event->u.mlme.status == MLME_TIMEOUT) 6305 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6306 "ASSOC TIMEOUT"); 6307 } else if (event->u.mlme.data == AUTH_EVENT) { 6308 if (event->u.mlme.status == MLME_DENIED) 6309 CHECK_MLME_TRIGGER(stop_auth_denied, 6310 "DENIED AUTH: reason %d", 6311 event->u.mlme.reason); 6312 else if (event->u.mlme.status == MLME_TIMEOUT) 6313 CHECK_MLME_TRIGGER(stop_auth_timeout, 6314 "AUTH TIMEOUT"); 6315 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6316 CHECK_MLME_TRIGGER(stop_rx_deauth, 6317 "DEAUTH RX %d", event->u.mlme.reason); 6318 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6319 CHECK_MLME_TRIGGER(stop_tx_deauth, 6320 "DEAUTH TX %d", event->u.mlme.reason); 6321 } 6322 #undef CHECK_MLME_TRIGGER 6323 } 6324 6325 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6326 struct ieee80211_vif *vif, 6327 const struct ieee80211_event *event) 6328 { 6329 struct iwl_fw_dbg_trigger_tlv *trig; 6330 struct iwl_fw_dbg_trigger_ba *ba_trig; 6331 6332 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6333 FW_DBG_TRIGGER_BA); 6334 if (!trig) 6335 return; 6336 6337 ba_trig = (void *)trig->data; 6338 6339 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6340 return; 6341 6342 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6343 "BAR received from %pM, tid %d, ssn %d", 6344 event->u.ba.sta->addr, event->u.ba.tid, 6345 event->u.ba.ssn); 6346 } 6347 6348 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6349 struct ieee80211_vif *vif, 6350 const struct ieee80211_event *event) 6351 { 6352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6353 6354 switch (event->type) { 6355 case MLME_EVENT: 6356 iwl_mvm_event_mlme_callback(mvm, vif, event); 6357 break; 6358 case BAR_RX_EVENT: 6359 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6360 break; 6361 case BA_FRAME_TIMEOUT: 6362 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6363 event->u.ba.tid); 6364 break; 6365 default: 6366 break; 6367 } 6368 } 6369 6370 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6371 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6372 enum iwl_mvm_rxq_notif_type type, 6373 bool sync, 6374 const void *data, u32 size) 6375 { 6376 struct { 6377 struct iwl_rxq_sync_cmd cmd; 6378 struct iwl_mvm_internal_rxq_notif notif; 6379 } __packed cmd = { 6380 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6381 .cmd.count = 6382 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6383 size), 6384 .notif.type = type, 6385 .notif.sync = sync, 6386 }; 6387 struct iwl_host_cmd hcmd = { 6388 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6389 .data[0] = &cmd, 6390 .len[0] = sizeof(cmd), 6391 .data[1] = data, 6392 .len[1] = size, 6393 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6394 }; 6395 int ret; 6396 6397 /* size must be a multiple of DWORD */ 6398 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6399 return; 6400 6401 if (!iwl_mvm_has_new_rx_api(mvm)) 6402 return; 6403 6404 if (sync) { 6405 cmd.notif.cookie = mvm->queue_sync_cookie; 6406 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6407 } 6408 6409 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6410 if (ret) { 6411 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6412 goto out; 6413 } 6414 6415 if (sync) { 6416 lockdep_assert_held(&mvm->mutex); 6417 ret = wait_event_timeout(mvm->rx_sync_waitq, 6418 READ_ONCE(mvm->queue_sync_state) == 0, 6419 SYNC_RX_QUEUE_TIMEOUT); 6420 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6421 mvm->queue_sync_state, 6422 mvm->queue_sync_cookie); 6423 } 6424 6425 out: 6426 if (sync) { 6427 mvm->queue_sync_state = 0; 6428 mvm->queue_sync_cookie++; 6429 } 6430 } 6431 6432 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6433 { 6434 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6435 6436 guard(mvm)(mvm); 6437 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6438 } 6439 6440 int 6441 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6442 struct ieee80211_vif *vif, 6443 struct cfg80211_ftm_responder_stats *stats) 6444 { 6445 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6446 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6447 6448 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6449 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6450 return -EINVAL; 6451 6452 mutex_lock(&mvm->mutex); 6453 *stats = mvm->ftm_resp_stats; 6454 mutex_unlock(&mvm->mutex); 6455 6456 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6457 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6458 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6459 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6460 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6461 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6462 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6463 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6464 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6465 6466 return 0; 6467 } 6468 6469 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6470 struct cfg80211_pmsr_request *request) 6471 { 6472 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6473 6474 guard(mvm)(mvm); 6475 return iwl_mvm_ftm_start(mvm, vif, request); 6476 } 6477 6478 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6479 struct cfg80211_pmsr_request *request) 6480 { 6481 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6482 6483 guard(mvm)(mvm); 6484 iwl_mvm_ftm_abort(mvm, request); 6485 } 6486 6487 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6488 { 6489 u8 protocol = ip_hdr(skb)->protocol; 6490 6491 if (!IS_ENABLED(CONFIG_INET)) 6492 return false; 6493 6494 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6495 } 6496 6497 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6498 struct sk_buff *head, 6499 struct sk_buff *skb) 6500 { 6501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6502 6503 /* For now don't aggregate IPv6 in AMSDU */ 6504 if (skb->protocol != htons(ETH_P_IP)) 6505 return false; 6506 6507 if (!iwl_mvm_is_csum_supported(mvm)) 6508 return true; 6509 6510 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6511 } 6512 6513 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6514 struct ieee80211_vif *vif, 6515 struct cfg80211_set_hw_timestamp *hwts) 6516 { 6517 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6518 u32 protocols = 0; 6519 6520 /* HW timestamping is only supported for a specific station */ 6521 if (!hwts->macaddr) 6522 return -EOPNOTSUPP; 6523 6524 if (hwts->enable) 6525 protocols = 6526 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6527 6528 guard(mvm)(mvm); 6529 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6530 } 6531 6532 const struct ieee80211_ops iwl_mvm_hw_ops = { 6533 .tx = iwl_mvm_mac_tx, 6534 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6535 .ampdu_action = iwl_mvm_mac_ampdu_action, 6536 .get_antenna = iwl_mvm_op_get_antenna, 6537 .set_antenna = iwl_mvm_op_set_antenna, 6538 .start = iwl_mvm_mac_start, 6539 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6540 .stop = iwl_mvm_mac_stop, 6541 .add_interface = iwl_mvm_mac_add_interface, 6542 .remove_interface = iwl_mvm_mac_remove_interface, 6543 .config = iwl_mvm_mac_config, 6544 .prepare_multicast = iwl_mvm_prepare_multicast, 6545 .configure_filter = iwl_mvm_configure_filter, 6546 .config_iface_filter = iwl_mvm_config_iface_filter, 6547 .bss_info_changed = iwl_mvm_bss_info_changed, 6548 .hw_scan = iwl_mvm_mac_hw_scan, 6549 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6550 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6551 .sta_state = iwl_mvm_mac_sta_state, 6552 .sta_notify = iwl_mvm_mac_sta_notify, 6553 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6554 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6555 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6556 .sta_rc_update = iwl_mvm_sta_rc_update, 6557 .conf_tx = iwl_mvm_mac_conf_tx, 6558 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6559 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6560 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6561 .flush = iwl_mvm_mac_flush, 6562 .flush_sta = iwl_mvm_mac_flush_sta, 6563 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6564 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6565 .set_key = iwl_mvm_mac_set_key, 6566 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6567 .remain_on_channel = iwl_mvm_roc, 6568 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6569 .add_chanctx = iwl_mvm_add_chanctx, 6570 .remove_chanctx = iwl_mvm_remove_chanctx, 6571 .change_chanctx = iwl_mvm_change_chanctx, 6572 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6573 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6574 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6575 6576 .start_ap = iwl_mvm_start_ap, 6577 .stop_ap = iwl_mvm_stop_ap, 6578 .join_ibss = iwl_mvm_start_ibss, 6579 .leave_ibss = iwl_mvm_stop_ibss, 6580 6581 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6582 6583 .set_tim = iwl_mvm_set_tim, 6584 6585 .channel_switch = iwl_mvm_channel_switch, 6586 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6587 .post_channel_switch = iwl_mvm_post_channel_switch, 6588 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6589 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6590 6591 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6592 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6593 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6594 6595 .event_callback = iwl_mvm_mac_event_callback, 6596 6597 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6598 6599 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6600 6601 #ifdef CONFIG_PM_SLEEP 6602 /* look at d3.c */ 6603 .suspend = iwl_mvm_suspend, 6604 .resume = iwl_mvm_resume, 6605 .set_wakeup = iwl_mvm_set_wakeup, 6606 .set_rekey_data = iwl_mvm_set_rekey_data, 6607 #if IS_ENABLED(CONFIG_IPV6) 6608 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6609 #endif 6610 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6611 #endif 6612 .get_survey = iwl_mvm_mac_get_survey, 6613 .sta_statistics = iwl_mvm_mac_sta_statistics, 6614 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6615 .start_pmsr = iwl_mvm_start_pmsr, 6616 .abort_pmsr = iwl_mvm_abort_pmsr, 6617 6618 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6619 #ifdef CONFIG_IWLWIFI_DEBUGFS 6620 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6621 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6622 #endif 6623 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6624 }; 6625