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-eeprom-parse.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 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 34 { 35 .max = 1, 36 .types = BIT(NL80211_IFTYPE_STATION), 37 }, 38 { 39 .max = 1, 40 .types = BIT(NL80211_IFTYPE_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 50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 51 { 52 .num_different_channels = 2, 53 .max_interfaces = 3, 54 .limits = iwl_mvm_limits, 55 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 56 }, 57 }; 58 59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 60 .max_peers = IWL_MVM_TOF_MAX_APS, 61 .report_ap_tsf = 1, 62 .randomize_mac_addr = 1, 63 64 .ftm = { 65 .supported = 1, 66 .asap = 1, 67 .non_asap = 1, 68 .request_lci = 1, 69 .request_civicloc = 1, 70 .trigger_based = 1, 71 .non_trigger_based = 1, 72 .max_bursts_exponent = -1, /* all supported */ 73 .max_ftms_per_burst = 0, /* no limits */ 74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 75 BIT(NL80211_CHAN_WIDTH_20) | 76 BIT(NL80211_CHAN_WIDTH_40) | 77 BIT(NL80211_CHAN_WIDTH_80) | 78 BIT(NL80211_CHAN_WIDTH_160), 79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 80 BIT(NL80211_PREAMBLE_HT) | 81 BIT(NL80211_PREAMBLE_VHT) | 82 BIT(NL80211_PREAMBLE_HE), 83 }, 84 }; 85 86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 87 enum set_key_cmd cmd, 88 struct ieee80211_vif *vif, 89 struct ieee80211_sta *sta, 90 struct ieee80211_key_conf *key); 91 92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 93 { 94 int i; 95 96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 97 for (i = 0; i < NUM_PHY_CTX; i++) { 98 mvm->phy_ctxts[i].id = i; 99 mvm->phy_ctxts[i].ref = 0; 100 } 101 } 102 103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 104 const char *alpha2, 105 enum iwl_mcc_source src_id, 106 bool *changed) 107 { 108 struct ieee80211_regdomain *regd = NULL; 109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 111 struct iwl_mcc_update_resp_v8 *resp; 112 u8 resp_ver; 113 114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 115 116 lockdep_assert_held(&mvm->mutex); 117 118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 119 if (IS_ERR_OR_NULL(resp)) { 120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 121 PTR_ERR_OR_ZERO(resp)); 122 resp = NULL; 123 goto out; 124 } 125 126 if (changed) { 127 u32 status = le32_to_cpu(resp->status); 128 129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 130 status == MCC_RESP_ILLEGAL); 131 } 132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 133 MCC_UPDATE_CMD, 0); 134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 135 136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 137 __le32_to_cpu(resp->n_channels), 138 resp->channels, 139 __le16_to_cpu(resp->mcc), 140 __le16_to_cpu(resp->geo_info), 141 le32_to_cpu(resp->cap), resp_ver, 142 mvm->fwrt.uats_enabled); 143 /* Store the return source id */ 144 src_id = resp->source_id; 145 if (IS_ERR_OR_NULL(regd)) { 146 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 147 PTR_ERR_OR_ZERO(regd)); 148 goto out; 149 } 150 151 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 152 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 153 mvm->lar_regdom_set = true; 154 mvm->mcc_src = src_id; 155 156 /* Some kind of regulatory mess means we need to currently disallow 157 * puncturing in the US and Canada. Do that here, at least until we 158 * figure out the new chanctx APIs for puncturing. 159 */ 160 if (resp->mcc == cpu_to_le16(IWL_MCC_US) || 161 resp->mcc == cpu_to_le16(IWL_MCC_CANADA)) 162 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING); 163 else 164 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags); 165 166 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 167 168 out: 169 kfree(resp); 170 return regd; 171 } 172 173 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 174 { 175 bool changed; 176 struct ieee80211_regdomain *regd; 177 178 if (!iwl_mvm_is_lar_supported(mvm)) 179 return; 180 181 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 182 if (!IS_ERR_OR_NULL(regd)) { 183 /* only update the regulatory core if changed */ 184 if (changed) 185 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 186 187 kfree(regd); 188 } 189 } 190 191 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 192 bool *changed) 193 { 194 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 195 iwl_mvm_is_wifi_mcc_supported(mvm) ? 196 MCC_SOURCE_GET_CURRENT : 197 MCC_SOURCE_OLD_FW, changed); 198 } 199 200 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 201 { 202 enum iwl_mcc_source used_src; 203 struct ieee80211_regdomain *regd; 204 int ret; 205 bool changed; 206 const struct ieee80211_regdomain *r = 207 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 208 209 if (!r) 210 return -ENOENT; 211 212 /* save the last source in case we overwrite it below */ 213 used_src = mvm->mcc_src; 214 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 215 /* Notify the firmware we support wifi location updates */ 216 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 217 if (!IS_ERR_OR_NULL(regd)) 218 kfree(regd); 219 } 220 221 /* Now set our last stored MCC and source */ 222 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 223 &changed); 224 if (IS_ERR_OR_NULL(regd)) 225 return -EIO; 226 227 /* update cfg80211 if the regdomain was changed or the caller explicitly 228 * asked to update regdomain 229 */ 230 if (changed || force_regd_sync) 231 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 232 else 233 ret = 0; 234 235 kfree(regd); 236 return ret; 237 } 238 239 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 240 static const u8 he_if_types_ext_capa_sta[] = { 241 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 242 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 243 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 244 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 245 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 246 }; 247 248 static const u8 tm_if_types_ext_capa_sta[] = { 249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 251 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 252 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 253 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 254 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 255 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 256 }; 257 258 /* Additional interface types for which extended capabilities are 259 * specified separately 260 */ 261 262 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 263 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 264 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 265 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 266 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 267 #define IWL_MVM_MLD_CAPA_OPS FIELD_PREP_CONST( \ 268 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \ 269 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) 270 271 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 272 { 273 .iftype = NL80211_IFTYPE_STATION, 274 .extended_capabilities = he_if_types_ext_capa_sta, 275 .extended_capabilities_mask = he_if_types_ext_capa_sta, 276 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 277 /* relevant only if EHT is supported */ 278 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 279 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 280 }, 281 { 282 .iftype = NL80211_IFTYPE_STATION, 283 .extended_capabilities = tm_if_types_ext_capa_sta, 284 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 285 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 286 /* relevant only if EHT is supported */ 287 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 288 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 289 }, 290 }; 291 292 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 293 { 294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 295 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 296 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 297 return 0; 298 } 299 300 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 301 { 302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 303 304 /* This has been tested on those devices only */ 305 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 306 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) 307 return -EOPNOTSUPP; 308 309 if (!mvm->nvm_data) 310 return -EBUSY; 311 312 /* mac80211 ensures the device is not started, 313 * so the firmware cannot be running 314 */ 315 316 mvm->set_tx_ant = tx_ant; 317 mvm->set_rx_ant = rx_ant; 318 319 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 320 321 return 0; 322 } 323 324 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 325 { 326 struct ieee80211_hw *hw = mvm->hw; 327 int num_mac, ret, i; 328 static const u32 mvm_ciphers[] = { 329 WLAN_CIPHER_SUITE_WEP40, 330 WLAN_CIPHER_SUITE_WEP104, 331 WLAN_CIPHER_SUITE_TKIP, 332 WLAN_CIPHER_SUITE_CCMP, 333 }; 334 #ifdef CONFIG_PM_SLEEP 335 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 336 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 337 #endif 338 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 339 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 340 341 /* Tell mac80211 our characteristics */ 342 ieee80211_hw_set(hw, SIGNAL_DBM); 343 ieee80211_hw_set(hw, SPECTRUM_MGMT); 344 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 345 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 346 ieee80211_hw_set(hw, SUPPORTS_PS); 347 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 348 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 349 ieee80211_hw_set(hw, CONNECTION_MONITOR); 350 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 351 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 352 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 353 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 354 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 355 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 356 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 357 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 358 359 /* Set this early since we need to have it for the check below */ 360 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 361 !iwlwifi_mod_params.disable_11ax && 362 !iwlwifi_mod_params.disable_11be) 363 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 364 365 /* With MLD FW API, it tracks timing by itself, 366 * no need for any timing from the host 367 */ 368 if (!mvm->mld_api_is_used) 369 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 370 371 /* We should probably have this, but mac80211 372 * currently doesn't support it for MLO. 373 */ 374 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 375 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 376 377 /* 378 * On older devices, enabling TX A-MSDU occasionally leads to 379 * something getting messed up, the command read from the FIFO 380 * gets out of sync and isn't a TX command, so that we have an 381 * assert EDC. 382 * 383 * It's not clear where the bug is, but since we didn't used to 384 * support A-MSDU until moving the mac80211 iTXQs, just leave it 385 * for older devices. We also don't see this issue on any newer 386 * devices. 387 */ 388 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 389 ieee80211_hw_set(hw, TX_AMSDU); 390 ieee80211_hw_set(hw, TX_FRAG_LIST); 391 392 if (iwl_mvm_has_tlc_offload(mvm)) { 393 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 394 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 395 } 396 397 /* We want to use the mac80211's reorder buffer for 9000 */ 398 if (iwl_mvm_has_new_rx_api(mvm) && 399 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 400 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 401 402 if (fw_has_capa(&mvm->fw->ucode_capa, 403 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 404 ieee80211_hw_set(hw, AP_LINK_PS); 405 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 406 /* 407 * we absolutely need this for the new TX API since that comes 408 * with many more queues than the current code can deal with 409 * for station powersave 410 */ 411 return -EINVAL; 412 } 413 414 if (mvm->trans->num_rx_queues > 1) 415 ieee80211_hw_set(hw, USES_RSS); 416 417 if (mvm->trans->max_skb_frags) 418 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 419 420 hw->queues = IEEE80211_NUM_ACS; 421 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 422 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 423 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 424 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 425 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 426 427 hw->radiotap_timestamp.units_pos = 428 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 429 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 430 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 431 hw->radiotap_timestamp.accuracy = 22; 432 433 if (!iwl_mvm_has_tlc_offload(mvm)) 434 hw->rate_control_algorithm = RS_NAME; 435 436 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 437 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 438 hw->max_tx_fragments = mvm->trans->max_skb_frags; 439 440 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 441 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 442 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 443 hw->wiphy->cipher_suites = mvm->ciphers; 444 445 if (iwl_mvm_has_new_rx_api(mvm)) { 446 mvm->ciphers[hw->wiphy->n_cipher_suites] = 447 WLAN_CIPHER_SUITE_GCMP; 448 hw->wiphy->n_cipher_suites++; 449 mvm->ciphers[hw->wiphy->n_cipher_suites] = 450 WLAN_CIPHER_SUITE_GCMP_256; 451 hw->wiphy->n_cipher_suites++; 452 } 453 454 if (iwlwifi_mod_params.swcrypto) 455 IWL_ERR(mvm, 456 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 457 if (!iwlwifi_mod_params.bt_coex_active) 458 IWL_ERR(mvm, 459 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 460 461 ieee80211_hw_set(hw, MFP_CAPABLE); 462 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 463 hw->wiphy->n_cipher_suites++; 464 if (iwl_mvm_has_new_rx_api(mvm)) { 465 mvm->ciphers[hw->wiphy->n_cipher_suites] = 466 WLAN_CIPHER_SUITE_BIP_GMAC_128; 467 hw->wiphy->n_cipher_suites++; 468 mvm->ciphers[hw->wiphy->n_cipher_suites] = 469 WLAN_CIPHER_SUITE_BIP_GMAC_256; 470 hw->wiphy->n_cipher_suites++; 471 } 472 473 wiphy_ext_feature_set(hw->wiphy, 474 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 475 wiphy_ext_feature_set(hw->wiphy, 476 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 477 478 if (fw_has_capa(&mvm->fw->ucode_capa, 479 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 480 wiphy_ext_feature_set(hw->wiphy, 481 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 482 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 483 } 484 485 if (sec_key_ver && 486 fw_has_capa(&mvm->fw->ucode_capa, 487 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 488 wiphy_ext_feature_set(hw->wiphy, 489 NL80211_EXT_FEATURE_BEACON_PROTECTION); 490 else if (fw_has_capa(&mvm->fw->ucode_capa, 491 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 492 wiphy_ext_feature_set(hw->wiphy, 493 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 494 495 if (fw_has_capa(&mvm->fw->ucode_capa, 496 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 497 hw->wiphy->hw_timestamp_max_peers = 1; 498 499 if (fw_has_capa(&mvm->fw->ucode_capa, 500 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 501 wiphy_ext_feature_set(hw->wiphy, 502 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 503 504 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 505 hw->wiphy->features |= 506 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 507 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 508 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 509 510 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 511 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 512 hw->chanctx_data_size = sizeof(u16); 513 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 514 515 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 516 BIT(NL80211_IFTYPE_P2P_CLIENT) | 517 BIT(NL80211_IFTYPE_AP) | 518 BIT(NL80211_IFTYPE_P2P_GO) | 519 BIT(NL80211_IFTYPE_P2P_DEVICE) | 520 BIT(NL80211_IFTYPE_ADHOC); 521 522 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 523 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 524 525 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 526 * the hw, preventing us to control which key(id) to use per MPDU. 527 * Till that's fixed we can't use Extended Key ID for the newer cards. 528 */ 529 if (!iwl_mvm_has_new_tx_api(mvm)) 530 wiphy_ext_feature_set(hw->wiphy, 531 NL80211_EXT_FEATURE_EXT_KEY_ID); 532 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 533 534 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 535 if (iwl_mvm_is_lar_supported(mvm)) 536 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 537 else 538 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 539 REGULATORY_DISABLE_BEACON_HINTS; 540 541 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 542 wiphy_ext_feature_set(hw->wiphy, 543 NL80211_EXT_FEATURE_DFS_CONCURRENT); 544 545 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 546 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 547 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 548 549 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 550 hw->wiphy->n_iface_combinations = 551 ARRAY_SIZE(iwl_mvm_iface_combinations); 552 553 hw->wiphy->max_remain_on_channel_duration = 10000; 554 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 555 556 /* Extract MAC address */ 557 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 558 hw->wiphy->addresses = mvm->addresses; 559 hw->wiphy->n_addresses = 1; 560 561 /* Extract additional MAC addresses if available */ 562 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 563 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 564 565 for (i = 1; i < num_mac; i++) { 566 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 567 ETH_ALEN); 568 mvm->addresses[i].addr[5]++; 569 hw->wiphy->n_addresses++; 570 } 571 572 iwl_mvm_reset_phy_ctxts(mvm); 573 574 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 575 576 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 577 578 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 579 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 580 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 581 582 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 583 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 584 else 585 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 586 587 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 588 hw->wiphy->bands[NL80211_BAND_2GHZ] = 589 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 590 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 591 hw->wiphy->bands[NL80211_BAND_5GHZ] = 592 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 593 594 if (fw_has_capa(&mvm->fw->ucode_capa, 595 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 596 fw_has_api(&mvm->fw->ucode_capa, 597 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 598 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 599 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 600 } 601 if (fw_has_capa(&mvm->fw->ucode_capa, 602 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 603 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 604 hw->wiphy->bands[NL80211_BAND_6GHZ] = 605 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 606 607 hw->wiphy->hw_version = mvm->trans->hw_id; 608 609 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 610 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 611 else 612 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 613 614 hw->wiphy->max_sched_scan_reqs = 1; 615 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 616 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 617 /* we create the 802.11 header and zero length SSID IE. */ 618 hw->wiphy->max_sched_scan_ie_len = 619 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 620 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 621 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 622 623 /* 624 * the firmware uses u8 for num of iterations, but 0xff is saved for 625 * infinite loop, so the maximum number of iterations is actually 254. 626 */ 627 hw->wiphy->max_sched_scan_plan_iterations = 254; 628 629 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 630 NL80211_FEATURE_LOW_PRIORITY_SCAN | 631 NL80211_FEATURE_P2P_GO_OPPPS | 632 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 633 NL80211_FEATURE_DYNAMIC_SMPS | 634 NL80211_FEATURE_STATIC_SMPS | 635 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 636 637 if (fw_has_capa(&mvm->fw->ucode_capa, 638 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 639 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 640 if (fw_has_capa(&mvm->fw->ucode_capa, 641 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 642 hw->wiphy->features |= NL80211_FEATURE_QUIET; 643 644 if (fw_has_capa(&mvm->fw->ucode_capa, 645 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 646 hw->wiphy->features |= 647 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 648 649 if (fw_has_capa(&mvm->fw->ucode_capa, 650 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 651 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 652 653 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 654 IWL_FW_CMD_VER_UNKNOWN) == 3) 655 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 656 657 if (fw_has_api(&mvm->fw->ucode_capa, 658 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 659 wiphy_ext_feature_set(hw->wiphy, 660 NL80211_EXT_FEATURE_SCAN_START_TIME); 661 wiphy_ext_feature_set(hw->wiphy, 662 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 663 } 664 665 if (iwl_mvm_is_oce_supported(mvm)) { 666 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 667 668 wiphy_ext_feature_set(hw->wiphy, 669 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 670 wiphy_ext_feature_set(hw->wiphy, 671 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 672 wiphy_ext_feature_set(hw->wiphy, 673 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 674 675 /* Old firmware also supports probe deferral and suppression */ 676 if (scan_ver < 15) 677 wiphy_ext_feature_set(hw->wiphy, 678 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 679 } 680 681 hw->wiphy->iftype_ext_capab = NULL; 682 hw->wiphy->num_iftype_ext_capab = 0; 683 684 if (mvm->nvm_data->sku_cap_11ax_enable && 685 !iwlwifi_mod_params.disable_11ax) { 686 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 687 hw->wiphy->num_iftype_ext_capab = 688 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 689 690 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 691 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 692 } 693 694 if (iwl_fw_lookup_cmd_ver(mvm->fw, 695 WIDE_ID(DATA_PATH_GROUP, 696 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 697 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 698 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 699 700 if (!hw->wiphy->iftype_ext_capab) { 701 hw->wiphy->num_iftype_ext_capab = 1; 702 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 703 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 704 } else { 705 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 706 } 707 } 708 709 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 710 TOF_RANGE_REQ_CMD), 711 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 712 wiphy_ext_feature_set(hw->wiphy, 713 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 714 715 if (fw_has_capa(&mvm->fw->ucode_capa, 716 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 717 wiphy_ext_feature_set(hw->wiphy, 718 NL80211_EXT_FEATURE_SECURE_LTF); 719 } 720 721 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 722 723 #ifdef CONFIG_PM_SLEEP 724 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 725 mvm->trans->ops->d3_suspend && 726 mvm->trans->ops->d3_resume && 727 device_can_wakeup(mvm->trans->dev)) { 728 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 729 WIPHY_WOWLAN_DISCONNECT | 730 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 731 WIPHY_WOWLAN_RFKILL_RELEASE | 732 WIPHY_WOWLAN_NET_DETECT; 733 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 734 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 735 WIPHY_WOWLAN_4WAY_HANDSHAKE; 736 737 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 738 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 739 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 740 mvm->wowlan.max_nd_match_sets = 741 iwl_umac_scan_get_max_profiles(mvm->fw); 742 hw->wiphy->wowlan = &mvm->wowlan; 743 } 744 #endif 745 746 ret = iwl_mvm_leds_init(mvm); 747 if (ret) 748 return ret; 749 750 if (fw_has_capa(&mvm->fw->ucode_capa, 751 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 752 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 753 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 754 ieee80211_hw_set(hw, TDLS_WIDER_BW); 755 } 756 757 if (fw_has_capa(&mvm->fw->ucode_capa, 758 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 759 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 760 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 761 } 762 763 hw->netdev_features |= mvm->cfg->features; 764 if (!iwl_mvm_is_csum_supported(mvm)) 765 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 766 767 if (mvm->cfg->vht_mu_mimo_supported) 768 wiphy_ext_feature_set(hw->wiphy, 769 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 770 771 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 772 wiphy_ext_feature_set(hw->wiphy, 773 NL80211_EXT_FEATURE_PROTECTED_TWT); 774 775 iwl_mvm_vendor_cmds_register(mvm); 776 777 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 778 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 779 780 ret = ieee80211_register_hw(mvm->hw); 781 if (ret) { 782 iwl_mvm_leds_exit(mvm); 783 } 784 785 return ret; 786 } 787 788 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 789 struct ieee80211_sta *sta) 790 { 791 if (likely(sta)) { 792 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 793 return; 794 } else { 795 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 796 return; 797 } 798 799 ieee80211_free_txskb(mvm->hw, skb); 800 } 801 802 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 803 struct ieee80211_tx_control *control, struct sk_buff *skb) 804 { 805 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 806 struct ieee80211_sta *sta = control->sta; 807 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 808 struct ieee80211_hdr *hdr = (void *)skb->data; 809 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 810 IEEE80211_TX_CTL_TX_OFFCHAN; 811 u32 link_id = u32_get_bits(info->control.flags, 812 IEEE80211_TX_CTRL_MLO_LINK); 813 struct ieee80211_sta *tmp_sta = sta; 814 815 if (iwl_mvm_is_radio_killed(mvm)) { 816 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 817 goto drop; 818 } 819 820 if (offchannel && 821 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 822 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 823 goto drop; 824 825 /* 826 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 827 * so we treat the others as broadcast 828 */ 829 if (ieee80211_is_mgmt(hdr->frame_control)) 830 sta = NULL; 831 832 /* If there is no sta, and it's not offchannel - send through AP */ 833 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 834 !offchannel) { 835 struct iwl_mvm_vif *mvmvif = 836 iwl_mvm_vif_from_mac80211(info->control.vif); 837 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 838 839 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 840 /* mac80211 holds rcu read lock */ 841 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 842 if (IS_ERR_OR_NULL(sta)) 843 goto drop; 844 } 845 } 846 847 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 848 !ieee80211_is_probe_resp(hdr->frame_control)) { 849 /* translate MLD addresses to LINK addresses */ 850 struct ieee80211_link_sta *link_sta = 851 rcu_dereference(tmp_sta->link[link_id]); 852 struct ieee80211_bss_conf *link_conf = 853 rcu_dereference(info->control.vif->link_conf[link_id]); 854 struct ieee80211_mgmt *mgmt; 855 856 if (WARN_ON(!link_sta || !link_conf)) 857 goto drop; 858 859 /* if sta is NULL, the frame is a management frame */ 860 mgmt = (void *)hdr; 861 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 862 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 863 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 864 } 865 866 iwl_mvm_tx_skb(mvm, skb, sta); 867 return; 868 drop: 869 ieee80211_free_txskb(hw, skb); 870 } 871 872 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 873 { 874 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 875 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 876 struct sk_buff *skb = NULL; 877 878 /* 879 * No need for threads to be pending here, they can leave the first 880 * taker all the work. 881 * 882 * mvmtxq->tx_request logic: 883 * 884 * If 0, no one is currently TXing, set to 1 to indicate current thread 885 * will now start TX and other threads should quit. 886 * 887 * If 1, another thread is currently TXing, set to 2 to indicate to 888 * that thread that there was another request. Since that request may 889 * have raced with the check whether the queue is empty, the TXing 890 * thread should check the queue's status one more time before leaving. 891 * This check is done in order to not leave any TX hanging in the queue 892 * until the next TX invocation (which may not even happen). 893 * 894 * If 2, another thread is currently TXing, and it will already double 895 * check the queue, so do nothing. 896 */ 897 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 898 return; 899 900 rcu_read_lock(); 901 do { 902 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 903 &mvmtxq->state) && 904 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 905 &mvmtxq->state) && 906 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 907 skb = ieee80211_tx_dequeue(hw, txq); 908 909 if (!skb) { 910 if (txq->sta) 911 IWL_DEBUG_TX(mvm, 912 "TXQ of sta %pM tid %d is now empty\n", 913 txq->sta->addr, 914 txq->tid); 915 break; 916 } 917 918 iwl_mvm_tx_skb(mvm, skb, txq->sta); 919 } 920 } while (atomic_dec_return(&mvmtxq->tx_request)); 921 rcu_read_unlock(); 922 } 923 924 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 925 struct ieee80211_txq *txq) 926 { 927 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 928 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 929 930 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 931 !txq->sta) { 932 iwl_mvm_mac_itxq_xmit(hw, txq); 933 return; 934 } 935 936 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 937 * to handle any packets we leave on the txq now 938 */ 939 940 spin_lock_bh(&mvm->add_stream_lock); 941 /* The list is being deleted only after the queue is fully allocated. */ 942 if (list_empty(&mvmtxq->list) && 943 /* recheck under lock */ 944 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 945 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 946 schedule_work(&mvm->add_stream_wk); 947 } 948 spin_unlock_bh(&mvm->add_stream_lock); 949 } 950 951 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 952 do { \ 953 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 954 break; \ 955 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 956 } while (0) 957 958 static void 959 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 960 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 961 enum ieee80211_ampdu_mlme_action action) 962 { 963 struct iwl_fw_dbg_trigger_tlv *trig; 964 struct iwl_fw_dbg_trigger_ba *ba_trig; 965 966 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 967 FW_DBG_TRIGGER_BA); 968 if (!trig) 969 return; 970 971 ba_trig = (void *)trig->data; 972 973 switch (action) { 974 case IEEE80211_AMPDU_TX_OPERATIONAL: { 975 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 976 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 977 978 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 979 "TX AGG START: MAC %pM tid %d ssn %d\n", 980 sta->addr, tid, tid_data->ssn); 981 break; 982 } 983 case IEEE80211_AMPDU_TX_STOP_CONT: 984 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 985 "TX AGG STOP: MAC %pM tid %d\n", 986 sta->addr, tid); 987 break; 988 case IEEE80211_AMPDU_RX_START: 989 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 990 "RX AGG START: MAC %pM tid %d ssn %d\n", 991 sta->addr, tid, rx_ba_ssn); 992 break; 993 case IEEE80211_AMPDU_RX_STOP: 994 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 995 "RX AGG STOP: MAC %pM tid %d\n", 996 sta->addr, tid); 997 break; 998 default: 999 break; 1000 } 1001 } 1002 1003 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1004 struct ieee80211_vif *vif, 1005 struct ieee80211_ampdu_params *params) 1006 { 1007 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1008 int ret; 1009 struct ieee80211_sta *sta = params->sta; 1010 enum ieee80211_ampdu_mlme_action action = params->action; 1011 u16 tid = params->tid; 1012 u16 *ssn = ¶ms->ssn; 1013 u16 buf_size = params->buf_size; 1014 bool amsdu = params->amsdu; 1015 u16 timeout = params->timeout; 1016 1017 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1018 sta->addr, tid, action); 1019 1020 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1021 return -EACCES; 1022 1023 mutex_lock(&mvm->mutex); 1024 1025 switch (action) { 1026 case IEEE80211_AMPDU_RX_START: 1027 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1028 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1029 struct iwl_mvm_vif *mvmvif; 1030 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1031 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1032 1033 mdata->opened_rx_ba_sessions = true; 1034 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1035 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1036 } 1037 if (!iwl_enable_rx_ampdu()) { 1038 ret = -EINVAL; 1039 break; 1040 } 1041 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1042 timeout); 1043 break; 1044 case IEEE80211_AMPDU_RX_STOP: 1045 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1046 timeout); 1047 break; 1048 case IEEE80211_AMPDU_TX_START: 1049 if (!iwl_enable_tx_ampdu()) { 1050 ret = -EINVAL; 1051 break; 1052 } 1053 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1054 break; 1055 case IEEE80211_AMPDU_TX_STOP_CONT: 1056 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1057 break; 1058 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1059 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1060 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1061 break; 1062 case IEEE80211_AMPDU_TX_OPERATIONAL: 1063 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1064 buf_size, amsdu); 1065 break; 1066 default: 1067 WARN_ON_ONCE(1); 1068 ret = -EINVAL; 1069 break; 1070 } 1071 1072 if (!ret) { 1073 u16 rx_ba_ssn = 0; 1074 1075 if (action == IEEE80211_AMPDU_RX_START) 1076 rx_ba_ssn = *ssn; 1077 1078 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1079 rx_ba_ssn, action); 1080 } 1081 mutex_unlock(&mvm->mutex); 1082 1083 return ret; 1084 } 1085 1086 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1087 struct ieee80211_vif *vif) 1088 { 1089 struct iwl_mvm *mvm = data; 1090 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1091 struct iwl_probe_resp_data *probe_data; 1092 unsigned int link_id; 1093 1094 mvmvif->uploaded = false; 1095 1096 spin_lock_bh(&mvm->time_event_lock); 1097 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1098 spin_unlock_bh(&mvm->time_event_lock); 1099 1100 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1101 mvmvif->ap_sta = NULL; 1102 1103 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1104 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1105 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1106 mvmvif->link[link_id]->phy_ctxt = NULL; 1107 mvmvif->link[link_id]->active = 0; 1108 mvmvif->link[link_id]->igtk = NULL; 1109 } 1110 1111 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1112 lockdep_is_held(&mvm->mutex)); 1113 if (probe_data) 1114 kfree_rcu(probe_data, rcu_head); 1115 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1116 } 1117 1118 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1119 { 1120 iwl_mvm_stop_device(mvm); 1121 1122 mvm->cur_aid = 0; 1123 1124 mvm->scan_status = 0; 1125 mvm->ps_disabled = false; 1126 mvm->rfkill_safe_init_done = false; 1127 1128 /* just in case one was running */ 1129 iwl_mvm_cleanup_roc_te(mvm); 1130 ieee80211_remain_on_channel_expired(mvm->hw); 1131 1132 iwl_mvm_ftm_restart(mvm); 1133 1134 /* 1135 * cleanup all interfaces, even inactive ones, as some might have 1136 * gone down during the HW restart 1137 */ 1138 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1139 1140 mvm->p2p_device_vif = NULL; 1141 1142 iwl_mvm_reset_phy_ctxts(mvm); 1143 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1144 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1145 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1146 1147 ieee80211_wake_queues(mvm->hw); 1148 1149 mvm->rx_ba_sessions = 0; 1150 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1151 mvm->monitor_on = false; 1152 #ifdef CONFIG_IWLWIFI_DEBUGFS 1153 mvm->beacon_inject_active = false; 1154 #endif 1155 1156 /* keep statistics ticking */ 1157 iwl_mvm_accu_radio_stats(mvm); 1158 } 1159 1160 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1161 { 1162 int ret; 1163 1164 lockdep_assert_held(&mvm->mutex); 1165 1166 ret = iwl_mvm_mei_get_ownership(mvm); 1167 if (ret) 1168 return ret; 1169 1170 if (mvm->mei_nvm_data) { 1171 /* We got the NIC, we can now free the MEI NVM data */ 1172 kfree(mvm->mei_nvm_data); 1173 mvm->mei_nvm_data = NULL; 1174 1175 /* 1176 * We can't free the nvm_data we allocated based on the SAP 1177 * data because we registered to cfg80211 with the channels 1178 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1179 * just in order to be able free it later. 1180 * NULLify nvm_data so that we will read the NVM from the 1181 * firmware this time. 1182 */ 1183 mvm->temp_nvm_data = mvm->nvm_data; 1184 mvm->nvm_data = NULL; 1185 } 1186 1187 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1188 /* 1189 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1190 * so later code will - from now on - see that we're doing it. 1191 */ 1192 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1193 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1194 /* Clean up some internal and mac80211 state on restart */ 1195 iwl_mvm_restart_cleanup(mvm); 1196 } 1197 ret = iwl_mvm_up(mvm); 1198 1199 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1200 NULL); 1201 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1202 NULL); 1203 1204 mvm->last_reset_or_resume_time_jiffies = jiffies; 1205 1206 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1207 /* Something went wrong - we need to finish some cleanup 1208 * that normally iwl_mvm_mac_restart_complete() below 1209 * would do. 1210 */ 1211 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1212 } 1213 1214 return ret; 1215 } 1216 1217 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1218 { 1219 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1220 int ret; 1221 1222 mutex_lock(&mvm->mutex); 1223 1224 /* we are starting the mac not in error flow, and restart is enabled */ 1225 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1226 iwlwifi_mod_params.fw_restart) { 1227 /* 1228 * This will prevent mac80211 recovery flows to trigger during 1229 * init failures 1230 */ 1231 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1232 } 1233 1234 ret = __iwl_mvm_mac_start(mvm); 1235 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1236 1237 mutex_unlock(&mvm->mutex); 1238 1239 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1240 1241 return ret; 1242 } 1243 1244 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1245 { 1246 int ret; 1247 1248 mutex_lock(&mvm->mutex); 1249 1250 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1251 1252 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1253 if (ret) 1254 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1255 ret); 1256 1257 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1258 1259 /* 1260 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1261 * of packets the FW sent out, so we must reconnect. 1262 */ 1263 iwl_mvm_teardown_tdls_peers(mvm); 1264 1265 mutex_unlock(&mvm->mutex); 1266 } 1267 1268 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1269 enum ieee80211_reconfig_type reconfig_type) 1270 { 1271 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1272 1273 switch (reconfig_type) { 1274 case IEEE80211_RECONFIG_TYPE_RESTART: 1275 iwl_mvm_restart_complete(mvm); 1276 break; 1277 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1278 break; 1279 } 1280 } 1281 1282 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1283 { 1284 lockdep_assert_held(&mvm->mutex); 1285 1286 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1287 1288 /* firmware counters are obviously reset now, but we shouldn't 1289 * partially track so also clear the fw_reset_accu counters. 1290 */ 1291 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1292 1293 /* async_handlers_wk is now blocked */ 1294 1295 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1296 iwl_mvm_rm_aux_sta(mvm); 1297 1298 iwl_mvm_stop_device(mvm); 1299 1300 iwl_mvm_async_handlers_purge(mvm); 1301 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1302 1303 /* 1304 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1305 * hw (as restart_complete() won't be called in this case) and mac80211 1306 * won't execute the restart. 1307 * But make sure to cleanup interfaces that have gone down before/during 1308 * HW restart was requested. 1309 */ 1310 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1311 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1312 &mvm->status)) 1313 ieee80211_iterate_interfaces(mvm->hw, 0, 1314 iwl_mvm_cleanup_iterator, mvm); 1315 1316 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1317 * make sure there's nothing left there and warn if any is found. 1318 */ 1319 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1320 int i; 1321 1322 for (i = 0; i < mvm->max_scans; i++) { 1323 if (WARN_ONCE(mvm->scan_uid_status[i], 1324 "UMAC scan UID %d status was not cleaned\n", 1325 i)) 1326 mvm->scan_uid_status[i] = 0; 1327 } 1328 } 1329 } 1330 1331 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1332 { 1333 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1334 1335 flush_work(&mvm->async_handlers_wk); 1336 flush_work(&mvm->add_stream_wk); 1337 1338 /* 1339 * Lock and clear the firmware running bit here already, so that 1340 * new commands coming in elsewhere, e.g. from debugfs, will not 1341 * be able to proceed. This is important here because one of those 1342 * debugfs files causes the firmware dump to be triggered, and if we 1343 * don't stop debugfs accesses before canceling that it could be 1344 * retriggered after we flush it but before we've cleared the bit. 1345 */ 1346 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1347 1348 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1349 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1350 1351 /* 1352 * The work item could be running or queued if the 1353 * ROC time event stops just as we get here. 1354 */ 1355 flush_work(&mvm->roc_done_wk); 1356 1357 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1358 1359 mutex_lock(&mvm->mutex); 1360 __iwl_mvm_mac_stop(mvm); 1361 mutex_unlock(&mvm->mutex); 1362 1363 /* 1364 * The worker might have been waiting for the mutex, let it run and 1365 * discover that its list is now empty. 1366 */ 1367 cancel_work_sync(&mvm->async_handlers_wk); 1368 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1369 } 1370 1371 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1372 { 1373 u16 i; 1374 1375 lockdep_assert_held(&mvm->mutex); 1376 1377 for (i = 0; i < NUM_PHY_CTX; i++) 1378 if (!mvm->phy_ctxts[i].ref) 1379 return &mvm->phy_ctxts[i]; 1380 1381 IWL_ERR(mvm, "No available PHY context\n"); 1382 return NULL; 1383 } 1384 1385 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1386 s16 tx_power) 1387 { 1388 u32 cmd_id = REDUCE_TX_POWER_CMD; 1389 int len; 1390 struct iwl_dev_tx_power_cmd cmd = { 1391 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1392 .common.mac_context_id = 1393 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1394 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1395 }; 1396 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1397 IWL_FW_CMD_VER_UNKNOWN); 1398 1399 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1400 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1401 1402 if (cmd_ver == 7) 1403 len = sizeof(cmd.v7); 1404 else if (cmd_ver == 6) 1405 len = sizeof(cmd.v6); 1406 else if (fw_has_api(&mvm->fw->ucode_capa, 1407 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1408 len = sizeof(cmd.v5); 1409 else if (fw_has_capa(&mvm->fw->ucode_capa, 1410 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1411 len = sizeof(cmd.v4); 1412 else 1413 len = sizeof(cmd.v3); 1414 1415 /* all structs have the same common part, add it */ 1416 len += sizeof(cmd.common); 1417 1418 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1419 } 1420 1421 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1422 struct ieee80211_vif *vif, 1423 struct ieee80211_bss_conf *link_conf) 1424 { 1425 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1427 int ret; 1428 1429 mutex_lock(&mvm->mutex); 1430 1431 if (vif->type == NL80211_IFTYPE_STATION) { 1432 struct iwl_mvm_sta *mvmsta; 1433 unsigned int link_id = link_conf->link_id; 1434 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1435 1436 mvmvif->csa_bcn_pending = false; 1437 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1438 1439 if (WARN_ON(!mvmsta)) { 1440 ret = -EIO; 1441 goto out_unlock; 1442 } 1443 1444 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1445 if (mvm->mld_api_is_used) 1446 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1447 else 1448 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1449 1450 if (!fw_has_capa(&mvm->fw->ucode_capa, 1451 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1452 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1453 if (ret) 1454 goto out_unlock; 1455 1456 iwl_mvm_stop_session_protection(mvm, vif); 1457 } 1458 } 1459 1460 mvmvif->ps_disabled = false; 1461 1462 ret = iwl_mvm_power_update_ps(mvm); 1463 1464 out_unlock: 1465 if (mvmvif->csa_failed) 1466 ret = -EIO; 1467 mutex_unlock(&mvm->mutex); 1468 1469 return ret; 1470 } 1471 1472 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1473 struct ieee80211_vif *vif, 1474 struct ieee80211_bss_conf *link_conf) 1475 { 1476 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1477 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1478 struct iwl_chan_switch_te_cmd cmd = { 1479 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1480 mvmvif->color)), 1481 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1482 }; 1483 1484 /* 1485 * In the new flow since FW is in charge of the timing, 1486 * if driver has canceled the channel switch he will receive the 1487 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1488 */ 1489 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1490 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1491 return; 1492 1493 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1494 1495 mutex_lock(&mvm->mutex); 1496 if (!fw_has_capa(&mvm->fw->ucode_capa, 1497 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1498 iwl_mvm_remove_csa_period(mvm, vif); 1499 else 1500 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1501 WIDE_ID(MAC_CONF_GROUP, 1502 CHANNEL_SWITCH_TIME_EVENT_CMD), 1503 0, sizeof(cmd), &cmd)); 1504 mvmvif->csa_failed = true; 1505 mutex_unlock(&mvm->mutex); 1506 1507 /* If we're here, we can't support MLD */ 1508 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1509 } 1510 1511 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1512 { 1513 struct iwl_mvm_vif *mvmvif; 1514 struct ieee80211_vif *vif; 1515 1516 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1517 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1518 1519 /* Trigger disconnect (should clear the CSA state) */ 1520 ieee80211_chswitch_done(vif, false, 0); 1521 } 1522 1523 static u8 1524 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1525 { 1526 int data_start; 1527 int control_start; 1528 int bw; 1529 1530 if (chandef->width == NL80211_CHAN_WIDTH_320) 1531 bw = 320; 1532 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1533 bw = 160; 1534 else 1535 return 0; 1536 1537 /* data is bw wide so the start is half the width */ 1538 data_start = chandef->center_freq1 - bw / 2; 1539 /* control is 20Mhz width */ 1540 control_start = chandef->chan->center_freq - 10; 1541 1542 return (control_start - data_start) / 80; 1543 } 1544 1545 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1546 struct ieee80211_vif *vif) 1547 { 1548 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1549 int ret; 1550 1551 lockdep_assert_held(&mvm->mutex); 1552 1553 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1554 if (ret) { 1555 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1556 return ret; 1557 } 1558 1559 /* Only queue for this station is the mcast queue, 1560 * which shouldn't be in TFD mask anyway 1561 */ 1562 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1563 vif->type, 1564 IWL_STA_MULTICAST); 1565 } 1566 1567 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1568 struct ieee80211_vif *vif) 1569 { 1570 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1572 int ret; 1573 int i; 1574 1575 mutex_lock(&mvm->mutex); 1576 1577 mvmvif->mvm = mvm; 1578 1579 /* the first link always points to the default one */ 1580 mvmvif->link[0] = &mvmvif->deflink; 1581 1582 /* 1583 * Not much to do here. The stack will not allow interface 1584 * types or combinations that we didn't advertise, so we 1585 * don't really have to check the types. 1586 */ 1587 1588 /* make sure that beacon statistics don't go backwards with FW reset */ 1589 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1590 for_each_mvm_vif_valid_link(mvmvif, i) 1591 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1592 mvmvif->link[i]->beacon_stats.num_beacons; 1593 1594 /* Allocate resources for the MAC context, and add it to the fw */ 1595 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1596 if (ret) 1597 goto out; 1598 1599 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1600 1601 /* Currently not much to do for NAN */ 1602 if (vif->type == NL80211_IFTYPE_NAN) { 1603 ret = 0; 1604 goto out; 1605 } 1606 1607 /* 1608 * The AP binding flow can be done only after the beacon 1609 * template is configured (which happens only in the mac80211 1610 * start_ap() flow), and adding the broadcast station can happen 1611 * only after the binding. 1612 * In addition, since modifying the MAC before adding a bcast 1613 * station is not allowed by the FW, delay the adding of MAC context to 1614 * the point where we can also add the bcast station. 1615 * In short: there's not much we can do at this point, other than 1616 * allocating resources :) 1617 */ 1618 if (vif->type == NL80211_IFTYPE_AP || 1619 vif->type == NL80211_IFTYPE_ADHOC) { 1620 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1621 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1622 ret = 0; 1623 goto out; 1624 } 1625 1626 mvmvif->features |= hw->netdev_features; 1627 1628 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1629 if (ret) 1630 goto out_unlock; 1631 1632 ret = iwl_mvm_power_update_mac(mvm); 1633 if (ret) 1634 goto out_remove_mac; 1635 1636 /* beacon filtering */ 1637 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1638 if (ret) 1639 goto out_remove_mac; 1640 1641 if (!mvm->bf_allowed_vif && 1642 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1643 mvm->bf_allowed_vif = mvmvif; 1644 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1645 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1646 } 1647 1648 if (vif->p2p || iwl_fw_lookup_cmd_ver(mvm->fw, PHY_CONTEXT_CMD, 1) < 5) 1649 vif->driver_flags |= IEEE80211_VIF_IGNORE_OFDMA_WIDER_BW; 1650 1651 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1652 mvm->p2p_device_vif = vif; 1653 1654 iwl_mvm_tcm_add_vif(mvm, vif); 1655 INIT_DELAYED_WORK(&mvmvif->csa_work, 1656 iwl_mvm_channel_switch_disconnect_wk); 1657 1658 if (vif->type == NL80211_IFTYPE_MONITOR) { 1659 mvm->monitor_on = true; 1660 mvm->monitor_p80 = 1661 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1662 } 1663 1664 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1665 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1666 1667 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1668 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1669 !mvm->csme_vif && mvm->mei_registered) { 1670 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1671 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1672 mvm->csme_vif = vif; 1673 } 1674 1675 out: 1676 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1677 vif->type == NL80211_IFTYPE_ADHOC)) 1678 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1679 1680 goto out_unlock; 1681 1682 out_remove_mac: 1683 mvmvif->deflink.phy_ctxt = NULL; 1684 iwl_mvm_mac_ctxt_remove(mvm, vif); 1685 out_unlock: 1686 mutex_unlock(&mvm->mutex); 1687 1688 return ret; 1689 } 1690 1691 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1692 struct ieee80211_vif *vif) 1693 { 1694 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1695 /* 1696 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1697 * We assume here that all the packets sent to the OFFCHANNEL 1698 * queue are sent in ROC session. 1699 */ 1700 flush_work(&mvm->roc_done_wk); 1701 } 1702 } 1703 1704 /* This function is doing the common part of removing the interface for 1705 * both - MLD and non-MLD modes. Returns true if removing the interface 1706 * is done 1707 */ 1708 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1709 struct ieee80211_vif *vif) 1710 { 1711 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1712 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1713 struct iwl_probe_resp_data *probe_data; 1714 1715 iwl_mvm_prepare_mac_removal(mvm, vif); 1716 1717 if (!(vif->type == NL80211_IFTYPE_AP || 1718 vif->type == NL80211_IFTYPE_ADHOC)) 1719 iwl_mvm_tcm_rm_vif(mvm, vif); 1720 1721 mutex_lock(&mvm->mutex); 1722 1723 if (vif == mvm->csme_vif) { 1724 iwl_mei_set_netdev(NULL); 1725 mvm->csme_vif = NULL; 1726 } 1727 1728 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1729 lockdep_is_held(&mvm->mutex)); 1730 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1731 if (probe_data) 1732 kfree_rcu(probe_data, rcu_head); 1733 1734 if (mvm->bf_allowed_vif == mvmvif) { 1735 mvm->bf_allowed_vif = NULL; 1736 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1737 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1738 } 1739 1740 if (vif->bss_conf.ftm_responder) 1741 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1742 1743 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1744 1745 /* 1746 * For AP/GO interface, the tear down of the resources allocated to the 1747 * interface is be handled as part of the stop_ap flow. 1748 */ 1749 if (vif->type == NL80211_IFTYPE_AP || 1750 vif->type == NL80211_IFTYPE_ADHOC) { 1751 #ifdef CONFIG_NL80211_TESTMODE 1752 if (vif == mvm->noa_vif) { 1753 mvm->noa_vif = NULL; 1754 mvm->noa_duration = 0; 1755 } 1756 #endif 1757 return true; 1758 } 1759 1760 iwl_mvm_power_update_mac(mvm); 1761 return false; 1762 } 1763 1764 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1765 struct ieee80211_vif *vif) 1766 { 1767 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1768 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1769 1770 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1771 goto out; 1772 1773 /* Before the interface removal, mac80211 would cancel the ROC, and the 1774 * ROC worker would be scheduled if needed. The worker would be flushed 1775 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1776 * binding etc. so nothing needs to be done here. 1777 */ 1778 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1779 if (mvmvif->deflink.phy_ctxt) { 1780 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1781 mvmvif->deflink.phy_ctxt = NULL; 1782 } 1783 mvm->p2p_device_vif = NULL; 1784 } 1785 1786 iwl_mvm_mac_ctxt_remove(mvm, vif); 1787 1788 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1789 1790 if (vif->type == NL80211_IFTYPE_MONITOR) 1791 mvm->monitor_on = false; 1792 1793 out: 1794 if (vif->type == NL80211_IFTYPE_AP || 1795 vif->type == NL80211_IFTYPE_ADHOC) { 1796 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1797 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1798 } 1799 1800 mutex_unlock(&mvm->mutex); 1801 } 1802 1803 struct iwl_mvm_mc_iter_data { 1804 struct iwl_mvm *mvm; 1805 int port_id; 1806 }; 1807 1808 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1809 struct ieee80211_vif *vif) 1810 { 1811 struct iwl_mvm_mc_iter_data *data = _data; 1812 struct iwl_mvm *mvm = data->mvm; 1813 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1814 struct iwl_host_cmd hcmd = { 1815 .id = MCAST_FILTER_CMD, 1816 .flags = CMD_ASYNC, 1817 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1818 }; 1819 int ret, len; 1820 1821 /* if we don't have free ports, mcast frames will be dropped */ 1822 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1823 return; 1824 1825 if (vif->type != NL80211_IFTYPE_STATION || 1826 !vif->cfg.assoc) 1827 return; 1828 1829 cmd->port_id = data->port_id++; 1830 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1831 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1832 1833 hcmd.len[0] = len; 1834 hcmd.data[0] = cmd; 1835 1836 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1837 if (ret) 1838 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1839 } 1840 1841 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1842 { 1843 struct iwl_mvm_mc_iter_data iter_data = { 1844 .mvm = mvm, 1845 }; 1846 int ret; 1847 1848 lockdep_assert_held(&mvm->mutex); 1849 1850 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1851 return; 1852 1853 ieee80211_iterate_active_interfaces_atomic( 1854 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1855 iwl_mvm_mc_iface_iterator, &iter_data); 1856 1857 /* 1858 * Send a (synchronous) ech command so that we wait for the 1859 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1860 * the interface iterator. Otherwise, we might get here over 1861 * and over again (by userspace just sending a lot of these) 1862 * and the CPU can send them faster than the firmware can 1863 * process them. 1864 * Note that the CPU is still faster - but with this we'll 1865 * actually send fewer commands overall because the CPU will 1866 * not schedule the work in mac80211 as frequently if it's 1867 * still running when rescheduled (possibly multiple times). 1868 */ 1869 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1870 if (ret) 1871 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1872 } 1873 1874 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1875 struct netdev_hw_addr_list *mc_list) 1876 { 1877 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1878 struct iwl_mcast_filter_cmd *cmd; 1879 struct netdev_hw_addr *addr; 1880 int addr_count; 1881 bool pass_all; 1882 int len; 1883 1884 addr_count = netdev_hw_addr_list_count(mc_list); 1885 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1886 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1887 if (pass_all) 1888 addr_count = 0; 1889 1890 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1891 cmd = kzalloc(len, GFP_ATOMIC); 1892 if (!cmd) 1893 return 0; 1894 1895 if (pass_all) { 1896 cmd->pass_all = 1; 1897 return (u64)(unsigned long)cmd; 1898 } 1899 1900 netdev_hw_addr_list_for_each(addr, mc_list) { 1901 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1902 cmd->count, addr->addr); 1903 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1904 addr->addr, ETH_ALEN); 1905 cmd->count++; 1906 } 1907 1908 return (u64)(unsigned long)cmd; 1909 } 1910 1911 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1912 unsigned int changed_flags, 1913 unsigned int *total_flags, u64 multicast) 1914 { 1915 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1916 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1917 1918 mutex_lock(&mvm->mutex); 1919 1920 /* replace previous configuration */ 1921 kfree(mvm->mcast_filter_cmd); 1922 mvm->mcast_filter_cmd = cmd; 1923 1924 if (!cmd) 1925 goto out; 1926 1927 if (changed_flags & FIF_ALLMULTI) 1928 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1929 1930 if (cmd->pass_all) 1931 cmd->count = 0; 1932 1933 iwl_mvm_recalc_multicast(mvm); 1934 out: 1935 mutex_unlock(&mvm->mutex); 1936 *total_flags = 0; 1937 } 1938 1939 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1940 struct ieee80211_vif *vif, 1941 unsigned int filter_flags, 1942 unsigned int changed_flags) 1943 { 1944 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1945 1946 /* We support only filter for probe requests */ 1947 if (!(changed_flags & FIF_PROBE_REQ)) 1948 return; 1949 1950 /* Supported only for p2p client interfaces */ 1951 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 1952 !vif->p2p) 1953 return; 1954 1955 mutex_lock(&mvm->mutex); 1956 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1957 mutex_unlock(&mvm->mutex); 1958 } 1959 1960 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 1961 { 1962 struct iwl_mu_group_mgmt_cmd cmd = {}; 1963 1964 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1965 WLAN_MEMBERSHIP_LEN); 1966 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1967 WLAN_USER_POSITION_LEN); 1968 1969 return iwl_mvm_send_cmd_pdu(mvm, 1970 WIDE_ID(DATA_PATH_GROUP, 1971 UPDATE_MU_GROUPS_CMD), 1972 0, sizeof(cmd), &cmd); 1973 } 1974 1975 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1976 struct ieee80211_vif *vif) 1977 { 1978 if (vif->bss_conf.mu_mimo_owner) { 1979 struct iwl_mu_group_mgmt_notif *notif = _data; 1980 1981 /* 1982 * MU-MIMO Group Id action frame is little endian. We treat 1983 * the data received from firmware as if it came from the 1984 * action frame, so no conversion is needed. 1985 */ 1986 ieee80211_update_mu_groups(vif, 0, 1987 (u8 *)¬if->membership_status, 1988 (u8 *)¬if->user_position); 1989 } 1990 } 1991 1992 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1993 struct iwl_rx_cmd_buffer *rxb) 1994 { 1995 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1996 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1997 1998 ieee80211_iterate_active_interfaces_atomic( 1999 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2000 iwl_mvm_mu_mimo_iface_iterator, notif); 2001 } 2002 2003 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2004 { 2005 u8 byte_num = ppe_pos_bit / 8; 2006 u8 bit_num = ppe_pos_bit % 8; 2007 u8 residue_bits; 2008 u8 res; 2009 2010 if (bit_num <= 5) 2011 return (ppe[byte_num] >> bit_num) & 2012 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2013 2014 /* 2015 * If bit_num > 5, we have to combine bits with next byte. 2016 * Calculate how many bits we need to take from current byte (called 2017 * here "residue_bits"), and add them to bits from next byte. 2018 */ 2019 2020 residue_bits = 8 - bit_num; 2021 2022 res = (ppe[byte_num + 1] & 2023 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2024 residue_bits; 2025 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2026 2027 return res; 2028 } 2029 2030 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2031 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2032 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2033 bool inheritance) 2034 { 2035 int i; 2036 2037 /* 2038 * FW currently supports only nss == MAX_HE_SUPP_NSS 2039 * 2040 * If nss > MAX: we can ignore values we don't support 2041 * If nss < MAX: we can set zeros in other streams 2042 */ 2043 if (nss > MAX_HE_SUPP_NSS) { 2044 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2045 MAX_HE_SUPP_NSS); 2046 nss = MAX_HE_SUPP_NSS; 2047 } 2048 2049 for (i = 0; i < nss; i++) { 2050 u8 ru_index_tmp = ru_index_bitmap << 1; 2051 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2052 u8 bw; 2053 2054 for (bw = 0; 2055 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2056 bw++) { 2057 ru_index_tmp >>= 1; 2058 2059 /* 2060 * According to the 11be spec, if for a specific BW the PPE Thresholds 2061 * isn't present - it should inherit the thresholds from the last 2062 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2063 * this inheritance - continue in this case 2064 */ 2065 if (!(ru_index_tmp & 1)) { 2066 if (inheritance) 2067 goto set_thresholds; 2068 else 2069 continue; 2070 } 2071 2072 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2073 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2074 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2075 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2076 2077 set_thresholds: 2078 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2079 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2080 } 2081 } 2082 } 2083 2084 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2085 struct ieee80211_link_sta *link_sta, 2086 struct iwl_he_pkt_ext_v2 *pkt_ext, 2087 bool inheritance) 2088 { 2089 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2090 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2091 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2092 u8 ru_index_bitmap = 2093 u8_get_bits(*ppe, 2094 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2095 /* Starting after PPE header */ 2096 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2097 2098 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2099 inheritance); 2100 } 2101 2102 static int 2103 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2104 u8 nominal_padding) 2105 { 2106 int low_th = -1; 2107 int high_th = -1; 2108 int i; 2109 2110 /* all the macros are the same for EHT and HE */ 2111 switch (nominal_padding) { 2112 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2113 low_th = IWL_HE_PKT_EXT_NONE; 2114 high_th = IWL_HE_PKT_EXT_NONE; 2115 break; 2116 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2117 low_th = IWL_HE_PKT_EXT_BPSK; 2118 high_th = IWL_HE_PKT_EXT_NONE; 2119 break; 2120 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2121 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2122 low_th = IWL_HE_PKT_EXT_NONE; 2123 high_th = IWL_HE_PKT_EXT_BPSK; 2124 break; 2125 } 2126 2127 if (low_th < 0 || high_th < 0) 2128 return -EINVAL; 2129 2130 /* Set the PPE thresholds accordingly */ 2131 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2132 u8 bw; 2133 2134 for (bw = 0; 2135 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2136 bw++) { 2137 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2138 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2139 } 2140 } 2141 2142 return 0; 2143 } 2144 2145 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2146 u8 nominal_padding) 2147 { 2148 int i; 2149 2150 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2151 u8 bw; 2152 2153 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2154 bw++) { 2155 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2156 2157 if (nominal_padding > 2158 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2159 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2160 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2161 else if (nominal_padding == 2162 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2163 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2164 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2165 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2166 } 2167 } 2168 } 2169 2170 /* Set the pkt_ext field according to PPE Thresholds element */ 2171 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2172 struct ieee80211_link_sta *link_sta, 2173 struct iwl_he_pkt_ext_v2 *pkt_ext) 2174 { 2175 u8 nominal_padding; 2176 int i, ret = 0; 2177 2178 if (WARN_ON(!link_sta)) 2179 return -EINVAL; 2180 2181 /* Initialize the PPE thresholds to "None" (7), as described in Table 2182 * 9-262ac of 80211.ax/D3.0. 2183 */ 2184 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2185 sizeof(struct iwl_he_pkt_ext_v2)); 2186 2187 if (link_sta->eht_cap.has_eht) { 2188 nominal_padding = 2189 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2190 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2191 2192 /* If PPE Thresholds exists, parse them into a FW-familiar 2193 * format. 2194 */ 2195 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2196 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2197 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2198 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2199 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2200 u8 ru_index_bitmap = 2201 u16_get_bits(*ppe, 2202 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2203 /* Starting after PPE header */ 2204 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2205 2206 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2207 ppe, ppe_pos_bit, true); 2208 /* EHT PPE Thresholds doesn't exist - set the API according to 2209 * HE PPE Tresholds 2210 */ 2211 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2212 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2213 /* Even though HE Capabilities IE doesn't contain PPE 2214 * Thresholds for BW 320Mhz, thresholds for this BW will 2215 * be filled in with the same values as 160Mhz, due to 2216 * the inheritance, as required. 2217 */ 2218 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2219 true); 2220 2221 /* According to the requirements, for MCSs 12-13 the 2222 * maximum value between HE PPE Threshold and Common 2223 * Nominal Packet Padding needs to be taken 2224 */ 2225 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2226 2227 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2228 * take the Thresholds from Common Nominal Packet Padding field 2229 */ 2230 } else { 2231 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2232 nominal_padding); 2233 } 2234 } else if (link_sta->he_cap.has_he) { 2235 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2236 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2237 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2238 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2239 false); 2240 /* PPE Thresholds doesn't exist - set the API PPE values 2241 * according to Common Nominal Packet Padding field. 2242 */ 2243 } else { 2244 nominal_padding = 2245 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2246 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2247 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2248 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2249 nominal_padding); 2250 } 2251 } 2252 2253 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2254 int bw; 2255 2256 for (bw = 0; 2257 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2258 bw++) { 2259 u8 *qam_th = 2260 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2261 2262 IWL_DEBUG_HT(mvm, 2263 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2264 i, bw, qam_th[0], qam_th[1]); 2265 } 2266 } 2267 return ret; 2268 } 2269 2270 /* 2271 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2272 * is enabled or not 2273 */ 2274 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2275 const struct iwl_mvm_vif_link_info *link_info, 2276 struct iwl_he_backoff_conf *trig_based_txf) 2277 { 2278 int i; 2279 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2280 bool mu_edca_enabled = true; 2281 2282 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2283 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2284 &link_info->queue_params[i].mu_edca_param_rec; 2285 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2286 2287 if (!link_info->queue_params[i].mu_edca) { 2288 mu_edca_enabled = false; 2289 break; 2290 } 2291 2292 trig_based_txf[ac].cwmin = 2293 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2294 trig_based_txf[ac].cwmax = 2295 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2296 trig_based_txf[ac].aifsn = 2297 cpu_to_le16(mu_edca->aifsn & 0xf); 2298 trig_based_txf[ac].mu_time = 2299 cpu_to_le16(mu_edca->mu_edca_timer); 2300 } 2301 2302 return mu_edca_enabled; 2303 } 2304 2305 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2306 { 2307 const struct ieee80211_supported_band *sband; 2308 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2309 2310 /* This capability is the same for all bands, 2311 * so take it from one of them. 2312 */ 2313 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2314 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2315 2316 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2317 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2318 } 2319 2320 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2321 struct ieee80211_link_sta *link_sta) 2322 { 2323 u8 *mac_cap_info = 2324 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2325 __le32 htc_flags = 0; 2326 2327 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2328 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2329 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2330 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2331 u8 link_adap = 2332 ((mac_cap_info[2] & 2333 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2334 (mac_cap_info[1] & 2335 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2336 2337 if (link_adap == 2) 2338 htc_flags |= 2339 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2340 else if (link_adap == 3) 2341 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2342 } 2343 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2344 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2345 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2346 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2347 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2348 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2349 2350 return htc_flags; 2351 } 2352 2353 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2354 struct ieee80211_vif *vif, u8 sta_id) 2355 { 2356 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2357 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2358 .sta_id = sta_id, 2359 .tid_limit = IWL_MAX_TID_COUNT, 2360 .bss_color = vif->bss_conf.he_bss_color.color, 2361 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2362 .frame_time_rts_th = 2363 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2364 }; 2365 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2366 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2367 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2368 int size; 2369 struct ieee80211_sta *sta; 2370 u32 flags; 2371 int i; 2372 void *cmd; 2373 2374 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2375 ver = 1; 2376 2377 switch (ver) { 2378 case 1: 2379 /* same layout as v2 except some data at the end */ 2380 cmd = &sta_ctxt_cmd_v2; 2381 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2382 break; 2383 case 2: 2384 cmd = &sta_ctxt_cmd_v2; 2385 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2386 break; 2387 case 3: 2388 cmd = &sta_ctxt_cmd; 2389 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2390 break; 2391 default: 2392 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2393 return; 2394 } 2395 2396 rcu_read_lock(); 2397 2398 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2399 if (IS_ERR_OR_NULL(sta)) { 2400 rcu_read_unlock(); 2401 WARN(1, "Can't find STA to configure HE\n"); 2402 return; 2403 } 2404 2405 if (!sta->deflink.he_cap.has_he) { 2406 rcu_read_unlock(); 2407 return; 2408 } 2409 2410 flags = 0; 2411 2412 /* Block 26-tone RU OFDMA transmissions */ 2413 if (mvmvif->deflink.he_ru_2mhz_block) 2414 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2415 2416 /* HTC flags */ 2417 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2418 2419 /* PPE Thresholds */ 2420 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2421 flags |= STA_CTXT_HE_PACKET_EXT; 2422 2423 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2424 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2425 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2426 2427 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2428 IEEE80211_HE_MAC_CAP2_ACK_EN) 2429 flags |= STA_CTXT_HE_ACK_ENABLED; 2430 2431 rcu_read_unlock(); 2432 2433 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2434 &sta_ctxt_cmd.trig_based_txf[0])) 2435 flags |= STA_CTXT_HE_MU_EDCA_CW; 2436 2437 if (vif->bss_conf.uora_exists) { 2438 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2439 2440 sta_ctxt_cmd.rand_alloc_ecwmin = 2441 vif->bss_conf.uora_ocw_range & 0x7; 2442 sta_ctxt_cmd.rand_alloc_ecwmax = 2443 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2444 } 2445 2446 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2447 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2448 2449 if (vif->bss_conf.nontransmitted) { 2450 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2451 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2452 vif->bss_conf.transmitter_bssid); 2453 sta_ctxt_cmd.max_bssid_indicator = 2454 vif->bss_conf.bssid_indicator; 2455 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2456 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2457 sta_ctxt_cmd.profile_periodicity = 2458 vif->bss_conf.profile_periodicity; 2459 } 2460 2461 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2462 2463 if (ver < 3) { 2464 /* fields before pkt_ext */ 2465 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2466 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2467 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2468 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2469 2470 /* pkt_ext */ 2471 for (i = 0; 2472 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2473 i++) { 2474 u8 bw; 2475 2476 for (bw = 0; 2477 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2478 bw++) { 2479 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2480 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2481 2482 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2483 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2484 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2485 } 2486 } 2487 2488 /* fields after pkt_ext */ 2489 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2490 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2491 sizeof(sta_ctxt_cmd_v2) - 2492 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2493 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2494 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2495 (u8 *)&sta_ctxt_cmd + 2496 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2497 sizeof(sta_ctxt_cmd) - 2498 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2499 sta_ctxt_cmd_v2.reserved3 = 0; 2500 } 2501 2502 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2503 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2504 } 2505 2506 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2507 u32 duration_override, unsigned int link_id) 2508 { 2509 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2510 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2511 2512 if (duration_override > duration) 2513 duration = duration_override; 2514 2515 /* Try really hard to protect the session and hear a beacon 2516 * The new session protection command allows us to protect the 2517 * session for a much longer time since the firmware will internally 2518 * create two events: a 300TU one with a very high priority that 2519 * won't be fragmented which should be enough for 99% of the cases, 2520 * and another one (which we configure here to be 900TU long) which 2521 * will have a slightly lower priority, but more importantly, can be 2522 * fragmented so that it'll allow other activities to run. 2523 */ 2524 if (fw_has_capa(&mvm->fw->ucode_capa, 2525 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2526 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2527 min_duration, false, 2528 link_id); 2529 else 2530 iwl_mvm_protect_session(mvm, vif, duration, 2531 min_duration, 500, false); 2532 } 2533 2534 /* Handle association common part to MLD and non-MLD modes */ 2535 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2536 struct ieee80211_vif *vif, 2537 u64 changes) 2538 { 2539 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2540 int ret; 2541 2542 /* The firmware tracks the MU-MIMO group on its own. 2543 * However, on HW restart we should restore this data. 2544 */ 2545 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2546 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2547 ret = iwl_mvm_update_mu_groups(mvm, vif); 2548 if (ret) 2549 IWL_ERR(mvm, 2550 "failed to update VHT MU_MIMO groups\n"); 2551 } 2552 2553 iwl_mvm_recalc_multicast(mvm); 2554 2555 /* reset rssi values */ 2556 mvmvif->bf_data.ave_beacon_signal = 0; 2557 2558 iwl_mvm_bt_coex_vif_change(mvm); 2559 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2560 IEEE80211_SMPS_AUTOMATIC); 2561 if (fw_has_capa(&mvm->fw->ucode_capa, 2562 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2563 iwl_mvm_config_scan(mvm); 2564 } 2565 2566 /* Execute the common part for MLD and non-MLD modes */ 2567 void 2568 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2569 struct ieee80211_vif *vif, 2570 struct ieee80211_bss_conf *link_conf, 2571 u64 changes) 2572 { 2573 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2574 int ret; 2575 2576 if (changes & BSS_CHANGED_BEACON_INFO) { 2577 /* We received a beacon from the associated AP so 2578 * remove the session protection. 2579 */ 2580 iwl_mvm_stop_session_protection(mvm, vif); 2581 2582 iwl_mvm_sf_update(mvm, vif, false); 2583 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2584 } 2585 2586 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2587 /* Send power command on every beacon change, 2588 * because we may have not enabled beacon abort yet. 2589 */ 2590 BSS_CHANGED_BEACON_INFO)) { 2591 ret = iwl_mvm_power_update_mac(mvm); 2592 if (ret) 2593 IWL_ERR(mvm, "failed to update power mode\n"); 2594 } 2595 2596 if (changes & BSS_CHANGED_CQM) { 2597 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2598 /* reset cqm events tracking */ 2599 mvmvif->bf_data.last_cqm_event = 0; 2600 if (mvmvif->bf_data.bf_enabled) { 2601 /* FIXME: need to update per link when FW API will 2602 * support it 2603 */ 2604 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2605 if (ret) 2606 IWL_ERR(mvm, 2607 "failed to update CQM thresholds\n"); 2608 } 2609 } 2610 2611 if (changes & BSS_CHANGED_BANDWIDTH) 2612 iwl_mvm_update_link_smps(vif, link_conf); 2613 } 2614 2615 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2616 struct ieee80211_vif *vif, 2617 struct ieee80211_bss_conf *bss_conf, 2618 u64 changes) 2619 { 2620 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2621 int ret; 2622 int i; 2623 2624 /* 2625 * Re-calculate the tsf id, as the leader-follower relations depend 2626 * on the beacon interval, which was not known when the station 2627 * interface was added. 2628 */ 2629 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2630 if ((vif->bss_conf.he_support && 2631 !iwlwifi_mod_params.disable_11ax)) 2632 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2633 2634 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2635 } 2636 2637 /* Update MU EDCA params */ 2638 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2639 vif->cfg.assoc && 2640 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2641 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2642 2643 /* 2644 * If we're not associated yet, take the (new) BSSID before associating 2645 * so the firmware knows. If we're already associated, then use the old 2646 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2647 * branch for disassociation below. 2648 */ 2649 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2650 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2651 2652 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2653 if (ret) 2654 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2655 2656 /* after sending it once, adopt mac80211 data */ 2657 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2658 mvmvif->associated = vif->cfg.assoc; 2659 2660 if (changes & BSS_CHANGED_ASSOC) { 2661 if (vif->cfg.assoc) { 2662 /* clear statistics to get clean beacon counter */ 2663 iwl_mvm_request_statistics(mvm, true); 2664 for_each_mvm_vif_valid_link(mvmvif, i) 2665 memset(&mvmvif->link[i]->beacon_stats, 0, 2666 sizeof(mvmvif->link[i]->beacon_stats)); 2667 2668 /* add quota for this interface */ 2669 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2670 if (ret) { 2671 IWL_ERR(mvm, "failed to update quotas\n"); 2672 return; 2673 } 2674 2675 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2676 &mvm->status) && 2677 !fw_has_capa(&mvm->fw->ucode_capa, 2678 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2679 /* 2680 * If we're restarting then the firmware will 2681 * obviously have lost synchronisation with 2682 * the AP. It will attempt to synchronise by 2683 * itself, but we can make it more reliable by 2684 * scheduling a session protection time event. 2685 * 2686 * The firmware needs to receive a beacon to 2687 * catch up with synchronisation, use 110% of 2688 * the beacon interval. 2689 * 2690 * Set a large maximum delay to allow for more 2691 * than a single interface. 2692 * 2693 * For new firmware versions, rely on the 2694 * firmware. This is relevant for DCM scenarios 2695 * only anyway. 2696 */ 2697 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2698 iwl_mvm_protect_session(mvm, vif, dur, dur, 2699 5 * dur, false); 2700 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2701 &mvm->status) && 2702 !vif->bss_conf.dtim_period) { 2703 /* 2704 * If we're not restarting and still haven't 2705 * heard a beacon (dtim period unknown) then 2706 * make sure we still have enough minimum time 2707 * remaining in the time event, since the auth 2708 * might actually have taken quite a while 2709 * (especially for SAE) and so the remaining 2710 * time could be small without us having heard 2711 * a beacon yet. 2712 */ 2713 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2714 } 2715 2716 iwl_mvm_sf_update(mvm, vif, false); 2717 iwl_mvm_power_vif_assoc(mvm, vif); 2718 if (vif->p2p) { 2719 iwl_mvm_update_smps(mvm, vif, 2720 IWL_MVM_SMPS_REQ_PROT, 2721 IEEE80211_SMPS_DYNAMIC, 0); 2722 } 2723 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2724 iwl_mvm_mei_host_disassociated(mvm); 2725 /* 2726 * If update fails - SF might be running in associated 2727 * mode while disassociated - which is forbidden. 2728 */ 2729 ret = iwl_mvm_sf_update(mvm, vif, false); 2730 WARN_ONCE(ret && 2731 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2732 &mvm->status), 2733 "Failed to update SF upon disassociation\n"); 2734 2735 /* 2736 * If we get an assert during the connection (after the 2737 * station has been added, but before the vif is set 2738 * to associated), mac80211 will re-add the station and 2739 * then configure the vif. Since the vif is not 2740 * associated, we would remove the station here and 2741 * this would fail the recovery. 2742 */ 2743 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2744 &mvm->status)) { 2745 /* first remove remaining keys */ 2746 iwl_mvm_sec_key_remove_ap(mvm, vif, 2747 &mvmvif->deflink, 0); 2748 2749 /* 2750 * Remove AP station now that 2751 * the MAC is unassoc 2752 */ 2753 ret = iwl_mvm_rm_sta_id(mvm, vif, 2754 mvmvif->deflink.ap_sta_id); 2755 if (ret) 2756 IWL_ERR(mvm, 2757 "failed to remove AP station\n"); 2758 2759 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2760 } 2761 2762 /* remove quota for this interface */ 2763 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2764 if (ret) 2765 IWL_ERR(mvm, "failed to update quotas\n"); 2766 2767 /* this will take the cleared BSSID from bss_conf */ 2768 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2769 if (ret) 2770 IWL_ERR(mvm, 2771 "failed to update MAC %pM (clear after unassoc)\n", 2772 vif->addr); 2773 } 2774 2775 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2776 } 2777 2778 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2779 changes); 2780 } 2781 2782 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2783 struct ieee80211_vif *vif, 2784 int *ret) 2785 { 2786 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2787 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2788 int i; 2789 2790 lockdep_assert_held(&mvm->mutex); 2791 2792 mvmvif->ap_assoc_sta_count = 0; 2793 2794 /* must be set before quota calculations */ 2795 mvmvif->ap_ibss_active = true; 2796 2797 /* send all the early keys to the device now */ 2798 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2799 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2800 2801 if (!key) 2802 continue; 2803 2804 mvmvif->ap_early_keys[i] = NULL; 2805 2806 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2807 if (*ret) 2808 return true; 2809 } 2810 2811 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2812 iwl_mvm_vif_set_low_latency(mvmvif, true, 2813 LOW_LATENCY_VIF_TYPE); 2814 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2815 } 2816 2817 /* power updated needs to be done before quotas */ 2818 iwl_mvm_power_update_mac(mvm); 2819 2820 return false; 2821 } 2822 2823 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2824 struct ieee80211_vif *vif, 2825 struct ieee80211_bss_conf *link_conf) 2826 { 2827 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2828 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2829 int ret; 2830 2831 mutex_lock(&mvm->mutex); 2832 2833 /* 2834 * Re-calculate the tsf id, as the leader-follower relations depend on 2835 * the beacon interval, which was not known when the AP interface 2836 * was added. 2837 */ 2838 if (vif->type == NL80211_IFTYPE_AP) 2839 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2840 2841 /* For older devices need to send beacon template before adding mac 2842 * context. For the newer, the beacon is a resource that belongs to a 2843 * MAC, so need to send beacon template after adding the mac. 2844 */ 2845 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2846 /* Add the mac context */ 2847 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2848 if (ret) 2849 goto out_unlock; 2850 2851 /* Send the beacon template */ 2852 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2853 if (ret) 2854 goto out_unlock; 2855 } else { 2856 /* Send the beacon template */ 2857 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2858 if (ret) 2859 goto out_unlock; 2860 2861 /* Add the mac context */ 2862 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2863 if (ret) 2864 goto out_unlock; 2865 } 2866 2867 /* Perform the binding */ 2868 ret = iwl_mvm_binding_add_vif(mvm, vif); 2869 if (ret) 2870 goto out_remove; 2871 2872 /* 2873 * This is not very nice, but the simplest: 2874 * For older FWs adding the mcast sta before the bcast station may 2875 * cause assert 0x2b00. 2876 * This is fixed in later FW so make the order of removal depend on 2877 * the TLV 2878 */ 2879 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2880 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2881 if (ret) 2882 goto out_unbind; 2883 /* 2884 * Send the bcast station. At this stage the TBTT and DTIM time 2885 * events are added and applied to the scheduler 2886 */ 2887 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2888 if (ret) { 2889 iwl_mvm_rm_mcast_sta(mvm, vif); 2890 goto out_unbind; 2891 } 2892 } else { 2893 /* 2894 * Send the bcast station. At this stage the TBTT and DTIM time 2895 * events are added and applied to the scheduler 2896 */ 2897 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2898 if (ret) 2899 goto out_unbind; 2900 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2901 if (ret) { 2902 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2903 goto out_unbind; 2904 } 2905 } 2906 2907 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2908 goto out_failed; 2909 2910 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2911 if (ret) 2912 goto out_failed; 2913 2914 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2915 if (vif->p2p && mvm->p2p_device_vif) 2916 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2917 2918 iwl_mvm_bt_coex_vif_change(mvm); 2919 2920 /* we don't support TDLS during DCM */ 2921 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2922 iwl_mvm_teardown_tdls_peers(mvm); 2923 2924 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2925 2926 goto out_unlock; 2927 2928 out_failed: 2929 iwl_mvm_power_update_mac(mvm); 2930 mvmvif->ap_ibss_active = false; 2931 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2932 iwl_mvm_rm_mcast_sta(mvm, vif); 2933 out_unbind: 2934 iwl_mvm_binding_remove_vif(mvm, vif); 2935 out_remove: 2936 iwl_mvm_mac_ctxt_remove(mvm, vif); 2937 out_unlock: 2938 mutex_unlock(&mvm->mutex); 2939 return ret; 2940 } 2941 2942 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 2943 struct ieee80211_vif *vif, 2944 struct ieee80211_bss_conf *link_conf) 2945 { 2946 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 2947 } 2948 2949 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 2950 struct ieee80211_vif *vif) 2951 { 2952 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 2953 } 2954 2955 /* Common part for MLD and non-MLD ops */ 2956 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 2957 struct ieee80211_vif *vif) 2958 { 2959 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2960 2961 lockdep_assert_held(&mvm->mutex); 2962 2963 iwl_mvm_prepare_mac_removal(mvm, vif); 2964 2965 /* Handle AP stop while in CSA */ 2966 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2967 iwl_mvm_remove_time_event(mvm, mvmvif, 2968 &mvmvif->time_event_data); 2969 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2970 mvmvif->csa_countdown = false; 2971 } 2972 2973 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2974 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2975 mvm->csa_tx_block_bcn_timeout = 0; 2976 } 2977 2978 mvmvif->ap_ibss_active = false; 2979 mvm->ap_last_beacon_gp2 = 0; 2980 2981 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2982 iwl_mvm_vif_set_low_latency(mvmvif, false, 2983 LOW_LATENCY_VIF_TYPE); 2984 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2985 } 2986 2987 iwl_mvm_bt_coex_vif_change(mvm); 2988 } 2989 2990 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2991 struct ieee80211_vif *vif, 2992 struct ieee80211_bss_conf *link_conf) 2993 { 2994 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2995 2996 mutex_lock(&mvm->mutex); 2997 2998 iwl_mvm_stop_ap_ibss_common(mvm, vif); 2999 3000 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3001 if (vif->p2p && mvm->p2p_device_vif) 3002 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3003 3004 iwl_mvm_update_quotas(mvm, false, NULL); 3005 3006 iwl_mvm_ftm_responder_clear(mvm, vif); 3007 3008 /* 3009 * This is not very nice, but the simplest: 3010 * For older FWs removing the mcast sta before the bcast station may 3011 * cause assert 0x2b00. 3012 * This is fixed in later FW (which will stop beaconing when removing 3013 * bcast station). 3014 * So make the order of removal depend on the TLV 3015 */ 3016 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3017 iwl_mvm_rm_mcast_sta(mvm, vif); 3018 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3019 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3020 iwl_mvm_rm_mcast_sta(mvm, vif); 3021 iwl_mvm_binding_remove_vif(mvm, vif); 3022 3023 iwl_mvm_power_update_mac(mvm); 3024 3025 iwl_mvm_mac_ctxt_remove(mvm, vif); 3026 3027 mutex_unlock(&mvm->mutex); 3028 } 3029 3030 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3031 struct ieee80211_vif *vif, 3032 struct ieee80211_bss_conf *link_conf) 3033 { 3034 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3035 } 3036 3037 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3038 struct ieee80211_vif *vif) 3039 { 3040 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3041 } 3042 3043 static void 3044 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3045 struct ieee80211_vif *vif, 3046 struct ieee80211_bss_conf *bss_conf, 3047 u64 changes) 3048 { 3049 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3050 3051 /* Changes will be applied when the AP/IBSS is started */ 3052 if (!mvmvif->ap_ibss_active) 3053 return; 3054 3055 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3056 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3057 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3058 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3059 3060 /* Need to send a new beacon template to the FW */ 3061 if (changes & BSS_CHANGED_BEACON && 3062 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3063 IWL_WARN(mvm, "Failed updating beacon data\n"); 3064 3065 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3066 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3067 3068 if (ret) 3069 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3070 ret); 3071 } 3072 3073 } 3074 3075 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3076 struct ieee80211_vif *vif, 3077 struct ieee80211_bss_conf *bss_conf, 3078 u64 changes) 3079 { 3080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3081 3082 mutex_lock(&mvm->mutex); 3083 3084 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3085 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3086 3087 switch (vif->type) { 3088 case NL80211_IFTYPE_STATION: 3089 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3090 break; 3091 case NL80211_IFTYPE_AP: 3092 case NL80211_IFTYPE_ADHOC: 3093 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3094 break; 3095 case NL80211_IFTYPE_MONITOR: 3096 if (changes & BSS_CHANGED_MU_GROUPS) 3097 iwl_mvm_update_mu_groups(mvm, vif); 3098 break; 3099 default: 3100 /* shouldn't happen */ 3101 WARN_ON_ONCE(1); 3102 } 3103 3104 if (changes & BSS_CHANGED_TXPOWER) { 3105 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3106 bss_conf->txpower); 3107 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3108 } 3109 3110 mutex_unlock(&mvm->mutex); 3111 } 3112 3113 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3114 struct ieee80211_scan_request *hw_req) 3115 { 3116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3117 int ret; 3118 3119 if (hw_req->req.n_channels == 0 || 3120 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3121 return -EINVAL; 3122 3123 mutex_lock(&mvm->mutex); 3124 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3125 mutex_unlock(&mvm->mutex); 3126 3127 return ret; 3128 } 3129 3130 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3131 struct ieee80211_vif *vif) 3132 { 3133 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3134 3135 mutex_lock(&mvm->mutex); 3136 3137 /* Due to a race condition, it's possible that mac80211 asks 3138 * us to stop a hw_scan when it's already stopped. This can 3139 * happen, for instance, if we stopped the scan ourselves, 3140 * called ieee80211_scan_completed() and the userspace called 3141 * cancel scan scan before ieee80211_scan_work() could run. 3142 * To handle that, simply return if the scan is not running. 3143 */ 3144 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3145 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3146 3147 mutex_unlock(&mvm->mutex); 3148 } 3149 3150 void 3151 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3152 struct ieee80211_sta *sta, u16 tids, 3153 int num_frames, 3154 enum ieee80211_frame_release_type reason, 3155 bool more_data) 3156 { 3157 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3158 3159 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3160 3161 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3162 tids, more_data, false); 3163 } 3164 3165 void 3166 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3167 struct ieee80211_sta *sta, u16 tids, 3168 int num_frames, 3169 enum ieee80211_frame_release_type reason, 3170 bool more_data) 3171 { 3172 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3173 3174 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3175 3176 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3177 tids, more_data, true); 3178 } 3179 3180 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3181 enum sta_notify_cmd cmd, 3182 struct ieee80211_sta *sta) 3183 { 3184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3185 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3186 unsigned long txqs = 0, tids = 0; 3187 int tid; 3188 3189 /* 3190 * If we have TVQM then we get too high queue numbers - luckily 3191 * we really shouldn't get here with that because such hardware 3192 * should have firmware supporting buffer station offload. 3193 */ 3194 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3195 return; 3196 3197 spin_lock_bh(&mvmsta->lock); 3198 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3199 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3200 3201 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3202 continue; 3203 3204 __set_bit(tid_data->txq_id, &txqs); 3205 3206 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3207 continue; 3208 3209 __set_bit(tid, &tids); 3210 } 3211 3212 switch (cmd) { 3213 case STA_NOTIFY_SLEEP: 3214 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3215 ieee80211_sta_set_buffered(sta, tid, true); 3216 3217 if (txqs) 3218 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3219 /* 3220 * The fw updates the STA to be asleep. Tx packets on the Tx 3221 * queues to this station will not be transmitted. The fw will 3222 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3223 */ 3224 break; 3225 case STA_NOTIFY_AWAKE: 3226 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3227 break; 3228 3229 if (txqs) 3230 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3231 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3232 break; 3233 default: 3234 break; 3235 } 3236 spin_unlock_bh(&mvmsta->lock); 3237 } 3238 3239 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3240 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3241 { 3242 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3243 } 3244 3245 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3246 { 3247 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3248 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3249 struct ieee80211_sta *sta; 3250 struct iwl_mvm_sta *mvmsta; 3251 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3252 3253 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3254 return; 3255 3256 rcu_read_lock(); 3257 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3258 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3259 rcu_read_unlock(); 3260 return; 3261 } 3262 3263 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3264 3265 if (!mvmsta->vif || 3266 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3267 rcu_read_unlock(); 3268 return; 3269 } 3270 3271 if (mvmsta->sleeping != sleeping) { 3272 mvmsta->sleeping = sleeping; 3273 __iwl_mvm_mac_sta_notify(mvm->hw, 3274 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3275 sta); 3276 ieee80211_sta_ps_transition(sta, sleeping); 3277 } 3278 3279 if (sleeping) { 3280 switch (notif->type) { 3281 case IWL_MVM_PM_EVENT_AWAKE: 3282 case IWL_MVM_PM_EVENT_ASLEEP: 3283 break; 3284 case IWL_MVM_PM_EVENT_UAPSD: 3285 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3286 break; 3287 case IWL_MVM_PM_EVENT_PS_POLL: 3288 ieee80211_sta_pspoll(sta); 3289 break; 3290 default: 3291 break; 3292 } 3293 } 3294 3295 rcu_read_unlock(); 3296 } 3297 3298 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3299 struct ieee80211_vif *vif, 3300 struct ieee80211_sta *sta) 3301 { 3302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3303 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3304 unsigned int link_id; 3305 3306 /* 3307 * This is called before mac80211 does RCU synchronisation, 3308 * so here we already invalidate our internal RCU-protected 3309 * station pointer. The rest of the code will thus no longer 3310 * be able to find the station this way, and we don't rely 3311 * on further RCU synchronisation after the sta_state() 3312 * callback deleted the station. 3313 * Since there's mvm->mutex here, no need to have RCU lock for 3314 * mvm_sta->link access. 3315 */ 3316 mutex_lock(&mvm->mutex); 3317 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3318 struct iwl_mvm_link_sta *link_sta; 3319 u32 sta_id; 3320 3321 if (!mvm_sta->link[link_id]) 3322 continue; 3323 3324 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3325 lockdep_is_held(&mvm->mutex)); 3326 sta_id = link_sta->sta_id; 3327 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3328 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3329 ERR_PTR(-ENOENT)); 3330 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3331 } 3332 } 3333 mutex_unlock(&mvm->mutex); 3334 } 3335 3336 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3337 const u8 *bssid) 3338 { 3339 int i; 3340 3341 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3342 struct iwl_mvm_tcm_mac *mdata; 3343 3344 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3345 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3346 mdata->opened_rx_ba_sessions = false; 3347 } 3348 3349 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3350 return; 3351 3352 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3353 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3354 return; 3355 } 3356 3357 if (!vif->p2p && 3358 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3359 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3360 return; 3361 } 3362 3363 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3364 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3365 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3366 return; 3367 } 3368 } 3369 3370 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3371 } 3372 3373 static void 3374 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3375 struct ieee80211_vif *vif, u8 *peer_addr, 3376 enum nl80211_tdls_operation action) 3377 { 3378 struct iwl_fw_dbg_trigger_tlv *trig; 3379 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3380 3381 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3382 FW_DBG_TRIGGER_TDLS); 3383 if (!trig) 3384 return; 3385 3386 tdls_trig = (void *)trig->data; 3387 3388 if (!(tdls_trig->action_bitmap & BIT(action))) 3389 return; 3390 3391 if (tdls_trig->peer_mode && 3392 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3393 return; 3394 3395 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3396 "TDLS event occurred, peer %pM, action %d", 3397 peer_addr, action); 3398 } 3399 3400 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3401 bool tolerated; 3402 }; 3403 3404 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3405 struct cfg80211_bss *bss, 3406 void *_data) 3407 { 3408 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3409 const struct cfg80211_bss_ies *ies; 3410 const struct element *elem; 3411 3412 rcu_read_lock(); 3413 ies = rcu_dereference(bss->ies); 3414 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3415 ies->len); 3416 3417 if (!elem || elem->datalen < 10 || 3418 !(elem->data[10] & 3419 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3420 data->tolerated = false; 3421 } 3422 rcu_read_unlock(); 3423 } 3424 3425 static void 3426 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3427 struct ieee80211_vif *vif, 3428 unsigned int link_id, 3429 struct ieee80211_bss_conf *link_conf) 3430 { 3431 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3432 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3433 .tolerated = true, 3434 }; 3435 3436 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3437 !mvmvif->link[link_id])) 3438 return; 3439 3440 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3441 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3442 return; 3443 } 3444 3445 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3446 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3447 &iter_data); 3448 3449 /* 3450 * If there is at least one AP on radar channel that cannot 3451 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3452 */ 3453 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3454 } 3455 3456 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3457 struct ieee80211_vif *vif) 3458 { 3459 struct ieee80211_supported_band *sband; 3460 const struct ieee80211_sta_he_cap *he_cap; 3461 3462 if (vif->type != NL80211_IFTYPE_STATION) 3463 return; 3464 3465 if (!mvm->cca_40mhz_workaround) 3466 return; 3467 3468 /* decrement and check that we reached zero */ 3469 mvm->cca_40mhz_workaround--; 3470 if (mvm->cca_40mhz_workaround) 3471 return; 3472 3473 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3474 3475 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3476 3477 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3478 3479 if (he_cap) { 3480 /* we know that ours is writable */ 3481 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3482 3483 he->he_cap_elem.phy_cap_info[0] |= 3484 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3485 } 3486 } 3487 3488 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3489 struct ieee80211_vif *vif, 3490 struct iwl_mvm_sta *mvm_sta) 3491 { 3492 #if IS_ENABLED(CONFIG_IWLMEI) 3493 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3494 struct iwl_mei_conn_info conn_info = { 3495 .ssid_len = vif->cfg.ssid_len, 3496 }; 3497 3498 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3499 return; 3500 3501 if (!mvm->mei_registered) 3502 return; 3503 3504 /* FIXME: MEI needs to be updated for MLO */ 3505 if (!vif->bss_conf.chanreq.oper.chan) 3506 return; 3507 3508 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3509 3510 switch (mvm_sta->pairwise_cipher) { 3511 case WLAN_CIPHER_SUITE_TKIP: 3512 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3513 break; 3514 case WLAN_CIPHER_SUITE_CCMP: 3515 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3516 break; 3517 case WLAN_CIPHER_SUITE_GCMP: 3518 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3519 break; 3520 case WLAN_CIPHER_SUITE_GCMP_256: 3521 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3522 break; 3523 case 0: 3524 /* open profile */ 3525 break; 3526 default: 3527 /* cipher not supported, don't send anything to iwlmei */ 3528 return; 3529 } 3530 3531 switch (mvmvif->rekey_data.akm) { 3532 case WLAN_AKM_SUITE_SAE & 0xff: 3533 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3534 break; 3535 case WLAN_AKM_SUITE_PSK & 0xff: 3536 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3537 break; 3538 case WLAN_AKM_SUITE_8021X & 0xff: 3539 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3540 break; 3541 case 0: 3542 /* open profile */ 3543 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3544 break; 3545 default: 3546 /* auth method / AKM not supported */ 3547 /* TODO: All the FT vesions of these? */ 3548 return; 3549 } 3550 3551 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3552 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3553 3554 /* TODO: add support for collocated AP data */ 3555 iwl_mei_host_associated(&conn_info, NULL); 3556 #endif 3557 } 3558 3559 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3560 struct ieee80211_vif *vif, 3561 bool force_assoc_off) 3562 { 3563 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3564 } 3565 3566 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3567 struct ieee80211_vif *vif, 3568 struct ieee80211_sta *sta, 3569 enum ieee80211_sta_state old_state, 3570 enum ieee80211_sta_state new_state) 3571 { 3572 static const struct iwl_mvm_sta_state_ops callbacks = { 3573 .add_sta = iwl_mvm_add_sta, 3574 .update_sta = iwl_mvm_update_sta, 3575 .rm_sta = iwl_mvm_rm_sta, 3576 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3577 }; 3578 3579 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3580 &callbacks); 3581 } 3582 3583 /* FIXME: temporary making two assumptions in all sta handling functions: 3584 * (1) when setting sta state, the link exists and protected 3585 * (2) if a link is valid in sta then it's valid in vif (can 3586 * use same index in the link array) 3587 */ 3588 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3589 struct ieee80211_vif *vif, 3590 struct ieee80211_sta *sta) 3591 { 3592 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3593 unsigned int link_id; 3594 3595 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3596 struct ieee80211_bss_conf *conf = 3597 link_conf_dereference_check(vif, link_id); 3598 struct ieee80211_link_sta *link_sta = 3599 link_sta_dereference_check(sta, link_id); 3600 3601 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3602 continue; 3603 3604 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3605 mvmvif->link[link_id]->phy_ctxt->channel->band); 3606 } 3607 } 3608 3609 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3610 3611 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3612 struct ieee80211_vif *vif, 3613 struct ieee80211_sta *sta) 3614 { 3615 struct ieee80211_link_sta *link_sta; 3616 unsigned int link_id; 3617 3618 /* Beacon interval check - firmware will crash if the beacon 3619 * interval is less than 16. We can't avoid connecting at all, 3620 * so refuse the station state change, this will cause mac80211 3621 * to abandon attempts to connect to this AP, and eventually 3622 * wpa_s will blocklist the AP... 3623 */ 3624 3625 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3626 struct ieee80211_bss_conf *link_conf = 3627 link_conf_dereference_protected(vif, link_id); 3628 3629 if (!link_conf) 3630 continue; 3631 3632 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3633 IWL_ERR(mvm, 3634 "Beacon interval %d for AP %pM is too small\n", 3635 link_conf->beacon_int, link_sta->addr); 3636 return false; 3637 } 3638 3639 link_conf->he_support = link_sta->he_cap.has_he; 3640 } 3641 3642 return true; 3643 } 3644 3645 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3646 struct ieee80211_vif *vif, 3647 struct ieee80211_sta *sta, 3648 bool is_sta) 3649 { 3650 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3651 struct ieee80211_link_sta *link_sta; 3652 unsigned int link_id; 3653 3654 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3655 struct ieee80211_bss_conf *link_conf = 3656 link_conf_dereference_protected(vif, link_id); 3657 3658 if (!link_conf || !mvmvif->link[link_id]) 3659 continue; 3660 3661 link_conf->he_support = link_sta->he_cap.has_he; 3662 3663 if (is_sta) { 3664 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3665 if (link_sta->he_cap.has_he) 3666 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3667 link_id, 3668 link_conf); 3669 } 3670 } 3671 } 3672 3673 static int 3674 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3675 struct ieee80211_vif *vif, 3676 struct ieee80211_sta *sta, 3677 const struct iwl_mvm_sta_state_ops *callbacks) 3678 { 3679 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3680 struct ieee80211_link_sta *link_sta; 3681 unsigned int i; 3682 int ret; 3683 3684 lockdep_assert_held(&mvm->mutex); 3685 3686 if (vif->type == NL80211_IFTYPE_STATION && 3687 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3688 return -EINVAL; 3689 3690 if (sta->tdls && 3691 (vif->p2p || 3692 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3693 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3694 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3695 return -EBUSY; 3696 } 3697 3698 ret = callbacks->add_sta(mvm, vif, sta); 3699 if (sta->tdls && ret == 0) { 3700 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3701 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3702 NL80211_TDLS_SETUP); 3703 } 3704 3705 if (ret) 3706 return ret; 3707 3708 for_each_sta_active_link(vif, sta, link_sta, i) 3709 link_sta->agg.max_rc_amsdu_len = 1; 3710 3711 ieee80211_sta_recalc_aggregates(sta); 3712 3713 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3714 mvmvif->ap_sta = sta; 3715 3716 /* 3717 * Initialize the rates here already - this really tells 3718 * the firmware only what the supported legacy rates are 3719 * (may be) since it's initialized already from what the 3720 * AP advertised in the beacon/probe response. This will 3721 * allow the firmware to send auth/assoc frames with one 3722 * of the supported rates already, rather than having to 3723 * use a mandatory rate. 3724 * If we're the AP, we'll just assume mandatory rates at 3725 * this point, but we know nothing about the STA anyway. 3726 */ 3727 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3728 3729 return 0; 3730 } 3731 3732 static int 3733 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3734 struct iwl_mvm *mvm, 3735 struct ieee80211_vif *vif, 3736 struct ieee80211_sta *sta, 3737 const struct iwl_mvm_sta_state_ops *callbacks) 3738 { 3739 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3740 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3741 struct ieee80211_link_sta *link_sta; 3742 unsigned int link_id; 3743 3744 lockdep_assert_held(&mvm->mutex); 3745 3746 if (vif->type == NL80211_IFTYPE_AP) { 3747 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3748 mvmvif->ap_assoc_sta_count++; 3749 callbacks->mac_ctxt_changed(mvm, vif, false); 3750 3751 /* since the below is not for MLD API, it's ok to use 3752 * the default bss_conf 3753 */ 3754 if (!mvm->mld_api_is_used && 3755 (vif->bss_conf.he_support && 3756 !iwlwifi_mod_params.disable_11ax)) 3757 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3758 } else if (vif->type == NL80211_IFTYPE_STATION) { 3759 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3760 3761 callbacks->mac_ctxt_changed(mvm, vif, false); 3762 3763 if (!mvm->mld_api_is_used) 3764 goto out; 3765 3766 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3767 struct ieee80211_bss_conf *link_conf = 3768 link_conf_dereference_protected(vif, link_id); 3769 3770 if (WARN_ON(!link_conf)) 3771 return -EINVAL; 3772 if (!mvmvif->link[link_id]) 3773 continue; 3774 3775 iwl_mvm_link_changed(mvm, vif, link_conf, 3776 LINK_CONTEXT_MODIFY_ALL & 3777 ~LINK_CONTEXT_MODIFY_ACTIVE, 3778 true); 3779 } 3780 } 3781 3782 out: 3783 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3784 3785 return callbacks->update_sta(mvm, vif, sta); 3786 } 3787 3788 static int 3789 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3790 struct ieee80211_vif *vif, 3791 struct ieee80211_sta *sta, 3792 const struct iwl_mvm_sta_state_ops *callbacks) 3793 { 3794 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3795 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3796 3797 lockdep_assert_held(&mvm->mutex); 3798 3799 /* we don't support TDLS during DCM */ 3800 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3801 iwl_mvm_teardown_tdls_peers(mvm); 3802 3803 if (sta->tdls) { 3804 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3805 NL80211_TDLS_ENABLE_LINK); 3806 } else { 3807 /* enable beacon filtering */ 3808 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 3809 3810 mvmvif->authorized = 1; 3811 3812 callbacks->mac_ctxt_changed(mvm, vif, false); 3813 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3814 3815 /* when client is authorized (AP station marked as such), 3816 * try to enable more links 3817 */ 3818 if (vif->type == NL80211_IFTYPE_STATION && 3819 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3820 iwl_mvm_mld_select_links(mvm, vif, false); 3821 } 3822 3823 mvm_sta->authorized = true; 3824 3825 /* MFP is set by default before the station is authorized. 3826 * Clear it here in case it's not used. 3827 */ 3828 if (!sta->mfp) { 3829 int ret = callbacks->update_sta(mvm, vif, sta); 3830 3831 if (ret) 3832 return ret; 3833 } 3834 3835 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3836 3837 return 0; 3838 } 3839 3840 static int 3841 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3842 struct ieee80211_vif *vif, 3843 struct ieee80211_sta *sta, 3844 const struct iwl_mvm_sta_state_ops *callbacks) 3845 { 3846 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3847 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3848 3849 lockdep_assert_held(&mvm->mutex); 3850 3851 mvmsta->authorized = false; 3852 3853 /* once we move into assoc state, need to update rate scale to 3854 * disable using wide bandwidth 3855 */ 3856 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3857 3858 if (!sta->tdls) { 3859 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3860 * yet to avoid sending high prio again for a little 3861 * time. 3862 */ 3863 mvmvif->authorized = 0; 3864 3865 /* disable beacon filtering */ 3866 iwl_mvm_disable_beacon_filter(mvm, vif); 3867 } 3868 3869 return 0; 3870 } 3871 3872 /* Common part for MLD and non-MLD modes */ 3873 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3874 struct ieee80211_vif *vif, 3875 struct ieee80211_sta *sta, 3876 enum ieee80211_sta_state old_state, 3877 enum ieee80211_sta_state new_state, 3878 const struct iwl_mvm_sta_state_ops *callbacks) 3879 { 3880 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3881 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3882 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3883 struct ieee80211_link_sta *link_sta; 3884 unsigned int link_id; 3885 int ret; 3886 3887 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3888 sta->addr, old_state, new_state); 3889 3890 /* 3891 * If we are in a STA removal flow and in DQA mode: 3892 * 3893 * This is after the sync_rcu part, so the queues have already been 3894 * flushed. No more TXs on their way in mac80211's path, and no more in 3895 * the queues. 3896 * Also, we won't be getting any new TX frames for this station. 3897 * What we might have are deferred TX frames that need to be taken care 3898 * of. 3899 * 3900 * Drop any still-queued deferred-frame before removing the STA, and 3901 * make sure the worker is no longer handling frames for this STA. 3902 */ 3903 if (old_state == IEEE80211_STA_NONE && 3904 new_state == IEEE80211_STA_NOTEXIST) { 3905 flush_work(&mvm->add_stream_wk); 3906 3907 /* 3908 * No need to make sure deferred TX indication is off since the 3909 * worker will already remove it if it was on 3910 */ 3911 3912 /* 3913 * Additionally, reset the 40 MHz capability if we disconnected 3914 * from the AP now. 3915 */ 3916 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3917 3918 /* Also free dup data just in case any assertions below fail */ 3919 kfree(mvm_sta->dup_data); 3920 } 3921 3922 mutex_lock(&mvm->mutex); 3923 3924 /* this would be a mac80211 bug ... but don't crash, unless we had a 3925 * firmware crash while we were activating a link, in which case it is 3926 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3927 * recovery flow since we spit tons of error messages anyway. 3928 */ 3929 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3930 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 3931 !mvmvif->link[link_id]->phy_ctxt)) { 3932 mutex_unlock(&mvm->mutex); 3933 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3934 &mvm->status) ? 0 : -EINVAL; 3935 } 3936 } 3937 3938 /* track whether or not the station is associated */ 3939 mvm_sta->sta_state = new_state; 3940 3941 if (old_state == IEEE80211_STA_NOTEXIST && 3942 new_state == IEEE80211_STA_NONE) { 3943 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 3944 callbacks); 3945 if (ret < 0) 3946 goto out_unlock; 3947 } else if (old_state == IEEE80211_STA_NONE && 3948 new_state == IEEE80211_STA_AUTH) { 3949 /* 3950 * EBS may be disabled due to previous failures reported by FW. 3951 * Reset EBS status here assuming environment has been changed. 3952 */ 3953 mvm->last_ebs_successful = true; 3954 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3955 ret = 0; 3956 } else if (old_state == IEEE80211_STA_AUTH && 3957 new_state == IEEE80211_STA_ASSOC) { 3958 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 3959 callbacks); 3960 } else if (old_state == IEEE80211_STA_ASSOC && 3961 new_state == IEEE80211_STA_AUTHORIZED) { 3962 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 3963 callbacks); 3964 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3965 new_state == IEEE80211_STA_ASSOC) { 3966 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 3967 callbacks); 3968 } else if (old_state == IEEE80211_STA_ASSOC && 3969 new_state == IEEE80211_STA_AUTH) { 3970 if (vif->type == NL80211_IFTYPE_AP) { 3971 mvmvif->ap_assoc_sta_count--; 3972 callbacks->mac_ctxt_changed(mvm, vif, false); 3973 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3974 iwl_mvm_stop_session_protection(mvm, vif); 3975 ret = 0; 3976 } else if (old_state == IEEE80211_STA_AUTH && 3977 new_state == IEEE80211_STA_NONE) { 3978 ret = 0; 3979 } else if (old_state == IEEE80211_STA_NONE && 3980 new_state == IEEE80211_STA_NOTEXIST) { 3981 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3982 iwl_mvm_stop_session_protection(mvm, vif); 3983 mvmvif->ap_sta = NULL; 3984 } 3985 ret = callbacks->rm_sta(mvm, vif, sta); 3986 if (sta->tdls) { 3987 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3988 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3989 NL80211_TDLS_DISABLE_LINK); 3990 } 3991 3992 if (unlikely(ret && 3993 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3994 &mvm->status))) 3995 ret = 0; 3996 } else { 3997 ret = -EIO; 3998 } 3999 out_unlock: 4000 mutex_unlock(&mvm->mutex); 4001 4002 if (sta->tdls && ret == 0) { 4003 if (old_state == IEEE80211_STA_NOTEXIST && 4004 new_state == IEEE80211_STA_NONE) 4005 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4006 else if (old_state == IEEE80211_STA_NONE && 4007 new_state == IEEE80211_STA_NOTEXIST) 4008 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4009 } 4010 4011 return ret; 4012 } 4013 4014 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4015 { 4016 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4017 4018 mvm->rts_threshold = value; 4019 4020 return 0; 4021 } 4022 4023 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4024 struct ieee80211_sta *sta, u32 changed) 4025 { 4026 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4027 4028 if (changed & (IEEE80211_RC_BW_CHANGED | 4029 IEEE80211_RC_SUPP_RATES_CHANGED | 4030 IEEE80211_RC_NSS_CHANGED)) 4031 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4032 4033 if (vif->type == NL80211_IFTYPE_STATION && 4034 changed & IEEE80211_RC_NSS_CHANGED) 4035 iwl_mvm_sf_update(mvm, vif, false); 4036 } 4037 4038 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4039 struct ieee80211_vif *vif, 4040 unsigned int link_id, u16 ac, 4041 const struct ieee80211_tx_queue_params *params) 4042 { 4043 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4044 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4045 4046 mvmvif->deflink.queue_params[ac] = *params; 4047 4048 /* 4049 * No need to update right away, we'll get BSS_CHANGED_QOS 4050 * The exception is P2P_DEVICE interface which needs immediate update. 4051 */ 4052 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4053 int ret; 4054 4055 mutex_lock(&mvm->mutex); 4056 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4057 mutex_unlock(&mvm->mutex); 4058 return ret; 4059 } 4060 return 0; 4061 } 4062 4063 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4064 struct ieee80211_vif *vif, 4065 struct ieee80211_prep_tx_info *info) 4066 { 4067 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4068 4069 mutex_lock(&mvm->mutex); 4070 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4071 mutex_unlock(&mvm->mutex); 4072 } 4073 4074 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4075 struct ieee80211_vif *vif, 4076 struct ieee80211_prep_tx_info *info) 4077 { 4078 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4079 4080 /* for successful cases (auth/assoc), don't cancel session protection */ 4081 if (info->success) 4082 return; 4083 4084 mutex_lock(&mvm->mutex); 4085 iwl_mvm_stop_session_protection(mvm, vif); 4086 mutex_unlock(&mvm->mutex); 4087 } 4088 4089 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4090 struct ieee80211_vif *vif, 4091 struct cfg80211_sched_scan_request *req, 4092 struct ieee80211_scan_ies *ies) 4093 { 4094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4095 4096 int ret; 4097 4098 mutex_lock(&mvm->mutex); 4099 4100 if (!vif->cfg.idle) { 4101 ret = -EBUSY; 4102 goto out; 4103 } 4104 4105 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4106 4107 out: 4108 mutex_unlock(&mvm->mutex); 4109 return ret; 4110 } 4111 4112 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4113 struct ieee80211_vif *vif) 4114 { 4115 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4116 int ret; 4117 4118 mutex_lock(&mvm->mutex); 4119 4120 /* Due to a race condition, it's possible that mac80211 asks 4121 * us to stop a sched_scan when it's already stopped. This 4122 * can happen, for instance, if we stopped the scan ourselves, 4123 * called ieee80211_sched_scan_stopped() and the userspace called 4124 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4125 * could run. To handle this, simply return if the scan is 4126 * not running. 4127 */ 4128 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4129 mutex_unlock(&mvm->mutex); 4130 return 0; 4131 } 4132 4133 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4134 mutex_unlock(&mvm->mutex); 4135 iwl_mvm_wait_for_async_handlers(mvm); 4136 4137 return ret; 4138 } 4139 4140 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4141 enum set_key_cmd cmd, 4142 struct ieee80211_vif *vif, 4143 struct ieee80211_sta *sta, 4144 struct ieee80211_key_conf *key) 4145 { 4146 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4147 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4148 struct iwl_mvm_sta *mvmsta = NULL; 4149 struct iwl_mvm_key_pn *ptk_pn = NULL; 4150 int keyidx = key->keyidx; 4151 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4152 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4153 int ret, i; 4154 u8 key_offset; 4155 4156 if (sta) 4157 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4158 4159 switch (key->cipher) { 4160 case WLAN_CIPHER_SUITE_TKIP: 4161 if (!mvm->trans->trans_cfg->gen2) { 4162 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4163 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4164 } else if (vif->type == NL80211_IFTYPE_STATION) { 4165 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4166 } else { 4167 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4168 return -EOPNOTSUPP; 4169 } 4170 break; 4171 case WLAN_CIPHER_SUITE_CCMP: 4172 case WLAN_CIPHER_SUITE_GCMP: 4173 case WLAN_CIPHER_SUITE_GCMP_256: 4174 if (!iwl_mvm_has_new_tx_api(mvm)) 4175 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4176 break; 4177 case WLAN_CIPHER_SUITE_AES_CMAC: 4178 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4179 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4180 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4181 break; 4182 case WLAN_CIPHER_SUITE_WEP40: 4183 case WLAN_CIPHER_SUITE_WEP104: 4184 if (vif->type == NL80211_IFTYPE_STATION) 4185 break; 4186 if (iwl_mvm_has_new_tx_api(mvm)) 4187 return -EOPNOTSUPP; 4188 /* support HW crypto on TX */ 4189 return 0; 4190 default: 4191 return -EOPNOTSUPP; 4192 } 4193 4194 switch (cmd) { 4195 case SET_KEY: 4196 if (vif->type == NL80211_IFTYPE_STATION && 4197 (keyidx == 6 || keyidx == 7)) 4198 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4199 key); 4200 4201 if ((vif->type == NL80211_IFTYPE_ADHOC || 4202 vif->type == NL80211_IFTYPE_AP) && !sta) { 4203 /* 4204 * GTK on AP interface is a TX-only key, return 0; 4205 * on IBSS they're per-station and because we're lazy 4206 * we don't support them for RX, so do the same. 4207 * CMAC/GMAC in AP/IBSS modes must be done in software 4208 * on older NICs. 4209 * 4210 * Except, of course, beacon protection - it must be 4211 * offloaded since we just set a beacon template, and 4212 * then we must also offload the IGTK (not just BIGTK) 4213 * for firmware reasons. 4214 * 4215 * So just check for beacon protection - if we don't 4216 * have it we cannot get here with keyidx >= 6, and 4217 * if we do have it we need to send the key to FW in 4218 * all cases (CMAC/GMAC). 4219 */ 4220 if (!wiphy_ext_feature_isset(hw->wiphy, 4221 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4222 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4223 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4224 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4225 ret = -EOPNOTSUPP; 4226 break; 4227 } 4228 4229 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4230 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4231 !iwl_mvm_has_new_tx_api(mvm)) { 4232 key->hw_key_idx = STA_KEY_IDX_INVALID; 4233 ret = 0; 4234 break; 4235 } 4236 4237 if (!mvmvif->ap_ibss_active) { 4238 for (i = 0; 4239 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4240 i++) { 4241 if (!mvmvif->ap_early_keys[i]) { 4242 mvmvif->ap_early_keys[i] = key; 4243 break; 4244 } 4245 } 4246 4247 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4248 ret = -ENOSPC; 4249 else 4250 ret = 0; 4251 4252 break; 4253 } 4254 } 4255 4256 /* During FW restart, in order to restore the state as it was, 4257 * don't try to reprogram keys we previously failed for. 4258 */ 4259 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4260 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4261 IWL_DEBUG_MAC80211(mvm, 4262 "skip invalid idx key programming during restart\n"); 4263 ret = 0; 4264 break; 4265 } 4266 4267 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4268 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4269 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4270 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4271 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4272 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4273 struct ieee80211_key_seq seq; 4274 int tid, q; 4275 4276 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4277 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4278 mvm->trans->num_rx_queues), 4279 GFP_KERNEL); 4280 if (!ptk_pn) { 4281 ret = -ENOMEM; 4282 break; 4283 } 4284 4285 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4286 ieee80211_get_key_rx_seq(key, tid, &seq); 4287 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4288 memcpy(ptk_pn->q[q].pn[tid], 4289 seq.ccmp.pn, 4290 IEEE80211_CCMP_PN_LEN); 4291 } 4292 4293 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4294 } 4295 4296 /* in HW restart reuse the index, otherwise request a new one */ 4297 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4298 key_offset = key->hw_key_idx; 4299 else 4300 key_offset = STA_KEY_IDX_INVALID; 4301 4302 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4303 mvmsta->pairwise_cipher = key->cipher; 4304 4305 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4306 sta ? sta->addr : NULL, key->keyidx); 4307 4308 if (sec_key_ver) 4309 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4310 else 4311 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4312 4313 if (ret) { 4314 IWL_WARN(mvm, "set key failed\n"); 4315 key->hw_key_idx = STA_KEY_IDX_INVALID; 4316 if (ptk_pn) { 4317 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4318 kfree(ptk_pn); 4319 } 4320 /* 4321 * can't add key for RX, but we don't need it 4322 * in the device for TX so still return 0, 4323 * unless we have new TX API where we cannot 4324 * put key material into the TX_CMD 4325 */ 4326 if (iwl_mvm_has_new_tx_api(mvm)) 4327 ret = -EOPNOTSUPP; 4328 else 4329 ret = 0; 4330 } 4331 4332 break; 4333 case DISABLE_KEY: 4334 if (vif->type == NL80211_IFTYPE_STATION && 4335 (keyidx == 6 || keyidx == 7)) 4336 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4337 NULL); 4338 4339 ret = -ENOENT; 4340 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4341 if (mvmvif->ap_early_keys[i] == key) { 4342 mvmvif->ap_early_keys[i] = NULL; 4343 ret = 0; 4344 } 4345 } 4346 4347 /* found in pending list - don't do anything else */ 4348 if (ret == 0) 4349 break; 4350 4351 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4352 ret = 0; 4353 break; 4354 } 4355 4356 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4357 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4358 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4359 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4360 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4361 ptk_pn = rcu_dereference_protected( 4362 mvmsta->ptk_pn[keyidx], 4363 lockdep_is_held(&mvm->mutex)); 4364 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4365 if (ptk_pn) 4366 kfree_rcu(ptk_pn, rcu_head); 4367 } 4368 4369 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4370 if (sec_key_ver) 4371 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4372 else 4373 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4374 break; 4375 default: 4376 ret = -EINVAL; 4377 } 4378 4379 return ret; 4380 } 4381 4382 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4383 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4384 struct ieee80211_key_conf *key) 4385 { 4386 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4387 int ret; 4388 4389 mutex_lock(&mvm->mutex); 4390 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4391 mutex_unlock(&mvm->mutex); 4392 4393 return ret; 4394 } 4395 4396 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4397 struct ieee80211_vif *vif, 4398 struct ieee80211_key_conf *keyconf, 4399 struct ieee80211_sta *sta, 4400 u32 iv32, u16 *phase1key) 4401 { 4402 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4403 4404 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4405 return; 4406 4407 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4408 } 4409 4410 4411 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4412 struct iwl_rx_packet *pkt, void *data) 4413 { 4414 struct iwl_mvm *mvm = 4415 container_of(notif_wait, struct iwl_mvm, notif_wait); 4416 struct iwl_hs20_roc_res *resp; 4417 int resp_len = iwl_rx_packet_payload_len(pkt); 4418 struct iwl_mvm_time_event_data *te_data = data; 4419 4420 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4421 return true; 4422 4423 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4424 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4425 return true; 4426 } 4427 4428 resp = (void *)pkt->data; 4429 4430 IWL_DEBUG_TE(mvm, 4431 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4432 resp->status, resp->event_unique_id); 4433 4434 te_data->uid = le32_to_cpu(resp->event_unique_id); 4435 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4436 te_data->uid); 4437 4438 spin_lock_bh(&mvm->time_event_lock); 4439 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4440 spin_unlock_bh(&mvm->time_event_lock); 4441 4442 return true; 4443 } 4444 4445 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4446 struct ieee80211_channel *channel, 4447 struct ieee80211_vif *vif, 4448 int duration) 4449 { 4450 int res; 4451 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4452 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4453 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4454 struct iwl_notification_wait wait_time_event; 4455 u32 req_dur, delay; 4456 struct iwl_hs20_roc_req aux_roc_req = { 4457 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4458 .id_and_color = 4459 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4460 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4461 }; 4462 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4463 &aux_roc_req.channel_info); 4464 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4465 4466 /* Set the channel info data */ 4467 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4468 iwl_mvm_phy_band_from_nl80211(channel->band), 4469 IWL_PHY_CHANNEL_MODE20, 4470 0); 4471 4472 /* Set the time and duration */ 4473 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4474 4475 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4476 tail->duration = cpu_to_le32(req_dur); 4477 tail->apply_time_max_delay = cpu_to_le32(delay); 4478 4479 IWL_DEBUG_TE(mvm, 4480 "ROC: Requesting to remain on channel %u for %ums\n", 4481 channel->hw_value, req_dur); 4482 IWL_DEBUG_TE(mvm, 4483 "\t(requested = %ums, max_delay = %ums)\n", 4484 duration, delay); 4485 4486 /* Set the node address */ 4487 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4488 4489 lockdep_assert_held(&mvm->mutex); 4490 4491 spin_lock_bh(&mvm->time_event_lock); 4492 4493 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4494 spin_unlock_bh(&mvm->time_event_lock); 4495 return -EIO; 4496 } 4497 4498 te_data->vif = vif; 4499 te_data->duration = duration; 4500 te_data->id = HOT_SPOT_CMD; 4501 4502 spin_unlock_bh(&mvm->time_event_lock); 4503 4504 /* 4505 * Use a notification wait, which really just processes the 4506 * command response and doesn't wait for anything, in order 4507 * to be able to process the response and get the UID inside 4508 * the RX path. Using CMD_WANT_SKB doesn't work because it 4509 * stores the buffer and then wakes up this thread, by which 4510 * time another notification (that the time event started) 4511 * might already be processed unsuccessfully. 4512 */ 4513 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4514 time_event_response, 4515 ARRAY_SIZE(time_event_response), 4516 iwl_mvm_rx_aux_roc, te_data); 4517 4518 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4519 &aux_roc_req); 4520 4521 if (res) { 4522 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4523 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4524 goto out_clear_te; 4525 } 4526 4527 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4528 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4529 /* should never fail */ 4530 WARN_ON_ONCE(res); 4531 4532 if (res) { 4533 out_clear_te: 4534 spin_lock_bh(&mvm->time_event_lock); 4535 iwl_mvm_te_clear_data(mvm, te_data); 4536 spin_unlock_bh(&mvm->time_event_lock); 4537 } 4538 4539 return res; 4540 } 4541 4542 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4543 { 4544 int ret = 0; 4545 4546 lockdep_assert_held(&mvm->mutex); 4547 4548 if (!fw_has_capa(&mvm->fw->ucode_capa, 4549 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4550 IWL_ERR(mvm, "hotspot not supported\n"); 4551 return -EINVAL; 4552 } 4553 4554 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4555 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4556 WARN(ret, "Failed to allocate aux station"); 4557 } 4558 4559 return ret; 4560 } 4561 4562 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4563 { 4564 int ret; 4565 4566 lockdep_assert_held(&mvm->mutex); 4567 4568 ret = iwl_mvm_binding_add_vif(mvm, vif); 4569 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4570 return ret; 4571 4572 /* The station and queue allocation must be done only after the binding 4573 * is done, as otherwise the FW might incorrectly configure its state. 4574 */ 4575 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4576 } 4577 4578 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4579 struct ieee80211_vif *vif, 4580 struct ieee80211_channel *channel, 4581 int duration, 4582 enum ieee80211_roc_type type) 4583 { 4584 static const struct iwl_mvm_roc_ops ops = { 4585 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4586 .link = iwl_mvm_roc_link, 4587 }; 4588 4589 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4590 } 4591 4592 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4593 struct ieee80211_channel *channel, 4594 struct ieee80211_vif *vif, 4595 int duration) 4596 { 4597 int ret; 4598 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4599 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4600 IWL_FW_CMD_VER_UNKNOWN); 4601 4602 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4603 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4604 } else if (fw_ver == 3) { 4605 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4606 ROC_ACTIVITY_HOTSPOT); 4607 } else { 4608 ret = -EOPNOTSUPP; 4609 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4610 } 4611 4612 return ret; 4613 } 4614 4615 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4616 struct ieee80211_vif *vif, 4617 struct ieee80211_channel *channel) 4618 { 4619 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4620 struct cfg80211_chan_def chandef; 4621 int i; 4622 4623 lockdep_assert_held(&mvm->mutex); 4624 4625 if (mvmvif->deflink.phy_ctxt && 4626 channel == mvmvif->deflink.phy_ctxt->channel) 4627 return 0; 4628 4629 /* Try using a PHY context that is already in use */ 4630 for (i = 0; i < NUM_PHY_CTX; i++) { 4631 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4632 4633 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4634 continue; 4635 4636 if (channel == phy_ctxt->channel) { 4637 if (mvmvif->deflink.phy_ctxt) 4638 iwl_mvm_phy_ctxt_unref(mvm, 4639 mvmvif->deflink.phy_ctxt); 4640 4641 mvmvif->deflink.phy_ctxt = phy_ctxt; 4642 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4643 return 0; 4644 } 4645 } 4646 4647 /* We already have a phy_ctxt, but it's not on the right channel */ 4648 if (mvmvif->deflink.phy_ctxt) 4649 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4650 4651 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4652 if (!mvmvif->deflink.phy_ctxt) 4653 return -ENOSPC; 4654 4655 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4656 4657 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4658 &chandef, NULL, 1, 1); 4659 } 4660 4661 /* Execute the common part for MLD and non-MLD modes */ 4662 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4663 struct ieee80211_channel *channel, int duration, 4664 enum ieee80211_roc_type type, 4665 const struct iwl_mvm_roc_ops *ops) 4666 { 4667 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4668 u32 lmac_id; 4669 int ret; 4670 4671 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4672 duration, type); 4673 4674 /* 4675 * Flush the done work, just in case it's still pending, so that 4676 * the work it does can complete and we can accept new frames. 4677 */ 4678 flush_work(&mvm->roc_done_wk); 4679 4680 mutex_lock(&mvm->mutex); 4681 4682 switch (vif->type) { 4683 case NL80211_IFTYPE_STATION: 4684 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4685 4686 /* Use aux roc framework (HS20) */ 4687 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4688 if (!ret) 4689 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4690 goto out_unlock; 4691 case NL80211_IFTYPE_P2P_DEVICE: 4692 /* handle below */ 4693 break; 4694 default: 4695 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4696 ret = -EINVAL; 4697 goto out_unlock; 4698 } 4699 4700 4701 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4702 if (ret) 4703 goto out_unlock; 4704 4705 ret = ops->link(mvm, vif); 4706 if (ret) 4707 goto out_unlock; 4708 4709 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4710 out_unlock: 4711 mutex_unlock(&mvm->mutex); 4712 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4713 return ret; 4714 } 4715 4716 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4717 struct ieee80211_vif *vif) 4718 { 4719 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4720 4721 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4722 4723 mutex_lock(&mvm->mutex); 4724 iwl_mvm_stop_roc(mvm, vif); 4725 mutex_unlock(&mvm->mutex); 4726 4727 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4728 return 0; 4729 } 4730 4731 struct iwl_mvm_ftm_responder_iter_data { 4732 bool responder; 4733 struct ieee80211_chanctx_conf *ctx; 4734 }; 4735 4736 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4737 struct ieee80211_vif *vif) 4738 { 4739 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4740 4741 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4742 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4743 data->responder = true; 4744 } 4745 4746 bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4747 struct ieee80211_chanctx_conf *ctx) 4748 { 4749 struct iwl_mvm_ftm_responder_iter_data data = { 4750 .responder = false, 4751 .ctx = ctx, 4752 }; 4753 4754 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4755 IEEE80211_IFACE_ITER_NORMAL, 4756 iwl_mvm_ftm_responder_chanctx_iter, 4757 &data); 4758 return data.responder; 4759 } 4760 4761 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4762 struct ieee80211_chanctx_conf *ctx) 4763 { 4764 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4765 struct iwl_mvm_phy_ctxt *phy_ctxt; 4766 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4767 int ret; 4768 4769 lockdep_assert_held(&mvm->mutex); 4770 4771 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4772 4773 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4774 if (!phy_ctxt) { 4775 ret = -ENOSPC; 4776 goto out; 4777 } 4778 4779 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 4780 ctx->rx_chains_static, 4781 ctx->rx_chains_dynamic); 4782 if (ret) { 4783 IWL_ERR(mvm, "Failed to add PHY context\n"); 4784 goto out; 4785 } 4786 4787 *phy_ctxt_id = phy_ctxt->id; 4788 out: 4789 return ret; 4790 } 4791 4792 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4793 struct ieee80211_chanctx_conf *ctx) 4794 { 4795 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4796 int ret; 4797 4798 mutex_lock(&mvm->mutex); 4799 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4800 mutex_unlock(&mvm->mutex); 4801 4802 return ret; 4803 } 4804 4805 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4806 struct ieee80211_chanctx_conf *ctx) 4807 { 4808 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4809 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4810 4811 lockdep_assert_held(&mvm->mutex); 4812 4813 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4814 } 4815 4816 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4817 struct ieee80211_chanctx_conf *ctx) 4818 { 4819 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4820 4821 mutex_lock(&mvm->mutex); 4822 __iwl_mvm_remove_chanctx(mvm, ctx); 4823 mutex_unlock(&mvm->mutex); 4824 } 4825 4826 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4827 struct ieee80211_chanctx_conf *ctx, u32 changed) 4828 { 4829 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4830 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4831 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4832 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4833 4834 if (WARN_ONCE((phy_ctxt->ref > 1) && 4835 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4836 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4837 IEEE80211_CHANCTX_CHANGE_RADAR | 4838 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4839 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4840 phy_ctxt->ref, changed)) 4841 return; 4842 4843 mutex_lock(&mvm->mutex); 4844 4845 /* we are only changing the min_width, may be a noop */ 4846 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4847 if (phy_ctxt->width == def->width) 4848 goto out_unlock; 4849 4850 /* we are just toggling between 20_NOHT and 20 */ 4851 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4852 def->width <= NL80211_CHAN_WIDTH_20) 4853 goto out_unlock; 4854 } 4855 4856 iwl_mvm_bt_coex_vif_change(mvm); 4857 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 4858 ctx->rx_chains_static, 4859 ctx->rx_chains_dynamic); 4860 4861 out_unlock: 4862 mutex_unlock(&mvm->mutex); 4863 } 4864 4865 /* 4866 * This function executes the common part for MLD and non-MLD modes. 4867 * 4868 * Returns true if we're done assigning the chanctx 4869 * (either on failure or success) 4870 */ 4871 static bool 4872 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4873 struct ieee80211_vif *vif, 4874 struct ieee80211_chanctx_conf *ctx, 4875 bool switching_chanctx, int *ret) 4876 { 4877 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4878 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4879 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4880 4881 lockdep_assert_held(&mvm->mutex); 4882 4883 mvmvif->deflink.phy_ctxt = phy_ctxt; 4884 4885 switch (vif->type) { 4886 case NL80211_IFTYPE_AP: 4887 /* only needed if we're switching chanctx (i.e. during CSA) */ 4888 if (switching_chanctx) { 4889 mvmvif->ap_ibss_active = true; 4890 break; 4891 } 4892 fallthrough; 4893 case NL80211_IFTYPE_ADHOC: 4894 /* 4895 * The AP binding flow is handled as part of the start_ap flow 4896 * (in bss_info_changed), similarly for IBSS. 4897 */ 4898 *ret = 0; 4899 return true; 4900 case NL80211_IFTYPE_STATION: 4901 break; 4902 case NL80211_IFTYPE_MONITOR: 4903 /* always disable PS when a monitor interface is active */ 4904 mvmvif->ps_disabled = true; 4905 break; 4906 default: 4907 *ret = -EINVAL; 4908 return true; 4909 } 4910 return false; 4911 } 4912 4913 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4914 struct ieee80211_vif *vif, 4915 struct ieee80211_bss_conf *link_conf, 4916 struct ieee80211_chanctx_conf *ctx, 4917 bool switching_chanctx) 4918 { 4919 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4920 int ret; 4921 4922 if (WARN_ON(!link_conf)) 4923 return -EINVAL; 4924 4925 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4926 switching_chanctx, &ret)) 4927 goto out; 4928 4929 ret = iwl_mvm_binding_add_vif(mvm, vif); 4930 if (ret) 4931 goto out; 4932 4933 /* 4934 * Power state must be updated before quotas, 4935 * otherwise fw will complain. 4936 */ 4937 iwl_mvm_power_update_mac(mvm); 4938 4939 /* Setting the quota at this stage is only required for monitor 4940 * interfaces. For the other types, the bss_info changed flow 4941 * will handle quota settings. 4942 */ 4943 if (vif->type == NL80211_IFTYPE_MONITOR) { 4944 mvmvif->monitor_active = true; 4945 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4946 if (ret) 4947 goto out_remove_binding; 4948 4949 ret = iwl_mvm_add_snif_sta(mvm, vif); 4950 if (ret) 4951 goto out_remove_binding; 4952 4953 } 4954 4955 /* Handle binding during CSA */ 4956 if (vif->type == NL80211_IFTYPE_AP) { 4957 iwl_mvm_update_quotas(mvm, false, NULL); 4958 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4959 } 4960 4961 if (vif->type == NL80211_IFTYPE_STATION) { 4962 if (!switching_chanctx) { 4963 mvmvif->csa_bcn_pending = false; 4964 goto out; 4965 } 4966 4967 mvmvif->csa_bcn_pending = true; 4968 4969 if (!fw_has_capa(&mvm->fw->ucode_capa, 4970 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4971 u32 duration = 5 * vif->bss_conf.beacon_int; 4972 4973 /* Protect the session to make sure we hear the first 4974 * beacon on the new channel. 4975 */ 4976 iwl_mvm_protect_session(mvm, vif, duration, duration, 4977 vif->bss_conf.beacon_int / 2, 4978 true); 4979 } 4980 4981 iwl_mvm_update_quotas(mvm, false, NULL); 4982 } 4983 4984 goto out; 4985 4986 out_remove_binding: 4987 iwl_mvm_binding_remove_vif(mvm, vif); 4988 iwl_mvm_power_update_mac(mvm); 4989 out: 4990 if (ret) 4991 mvmvif->deflink.phy_ctxt = NULL; 4992 return ret; 4993 } 4994 4995 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4996 struct ieee80211_vif *vif, 4997 struct ieee80211_bss_conf *link_conf, 4998 struct ieee80211_chanctx_conf *ctx) 4999 { 5000 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5001 int ret; 5002 5003 mutex_lock(&mvm->mutex); 5004 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5005 mutex_unlock(&mvm->mutex); 5006 5007 return ret; 5008 } 5009 5010 /* 5011 * This function executes the common part for MLD and non-MLD modes. 5012 * 5013 * Returns if chanctx unassign chanctx is done 5014 * (either on failure or success) 5015 */ 5016 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5017 struct ieee80211_vif *vif, 5018 bool switching_chanctx) 5019 { 5020 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5021 5022 lockdep_assert_held(&mvm->mutex); 5023 iwl_mvm_remove_time_event(mvm, mvmvif, 5024 &mvmvif->time_event_data); 5025 5026 switch (vif->type) { 5027 case NL80211_IFTYPE_ADHOC: 5028 return true; 5029 case NL80211_IFTYPE_MONITOR: 5030 mvmvif->monitor_active = false; 5031 mvmvif->ps_disabled = false; 5032 break; 5033 case NL80211_IFTYPE_AP: 5034 /* This part is triggered only during CSA */ 5035 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5036 return true; 5037 5038 mvmvif->csa_countdown = false; 5039 5040 /* Set CS bit on all the stations */ 5041 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5042 5043 /* Save blocked iface, the timeout is set on the next beacon */ 5044 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5045 5046 mvmvif->ap_ibss_active = false; 5047 break; 5048 default: 5049 break; 5050 } 5051 return false; 5052 } 5053 5054 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5055 struct ieee80211_vif *vif, 5056 struct ieee80211_bss_conf *link_conf, 5057 struct ieee80211_chanctx_conf *ctx, 5058 bool switching_chanctx) 5059 { 5060 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5061 struct ieee80211_vif *disabled_vif = NULL; 5062 5063 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5064 goto out; 5065 5066 if (vif->type == NL80211_IFTYPE_MONITOR) 5067 iwl_mvm_rm_snif_sta(mvm, vif); 5068 5069 5070 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5071 disabled_vif = vif; 5072 if (!fw_has_capa(&mvm->fw->ucode_capa, 5073 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5074 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5075 } 5076 5077 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5078 iwl_mvm_binding_remove_vif(mvm, vif); 5079 5080 out: 5081 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5082 switching_chanctx) 5083 return; 5084 mvmvif->deflink.phy_ctxt = NULL; 5085 iwl_mvm_power_update_mac(mvm); 5086 } 5087 5088 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5089 struct ieee80211_vif *vif, 5090 struct ieee80211_bss_conf *link_conf, 5091 struct ieee80211_chanctx_conf *ctx) 5092 { 5093 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5094 5095 mutex_lock(&mvm->mutex); 5096 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5097 mutex_unlock(&mvm->mutex); 5098 } 5099 5100 static int 5101 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5102 struct ieee80211_vif_chanctx_switch *vifs, 5103 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5104 { 5105 int ret; 5106 5107 mutex_lock(&mvm->mutex); 5108 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5109 vifs[0].old_ctx, true); 5110 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5111 5112 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5113 if (ret) { 5114 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5115 goto out_reassign; 5116 } 5117 5118 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5119 vifs[0].new_ctx, true); 5120 if (ret) { 5121 IWL_ERR(mvm, 5122 "failed to assign new_ctx during channel switch\n"); 5123 goto out_remove; 5124 } 5125 5126 /* we don't support TDLS during DCM - can be caused by channel switch */ 5127 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5128 iwl_mvm_teardown_tdls_peers(mvm); 5129 5130 goto out; 5131 5132 out_remove: 5133 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5134 5135 out_reassign: 5136 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5137 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5138 goto out_restart; 5139 } 5140 5141 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5142 vifs[0].old_ctx, true)) { 5143 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5144 goto out_restart; 5145 } 5146 5147 goto out; 5148 5149 out_restart: 5150 /* things keep failing, better restart the hw */ 5151 iwl_mvm_nic_restart(mvm, false); 5152 5153 out: 5154 mutex_unlock(&mvm->mutex); 5155 5156 return ret; 5157 } 5158 5159 static int 5160 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5161 struct ieee80211_vif_chanctx_switch *vifs, 5162 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5163 { 5164 int ret; 5165 5166 mutex_lock(&mvm->mutex); 5167 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5168 vifs[0].old_ctx, true); 5169 5170 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5171 vifs[0].new_ctx, true); 5172 if (ret) { 5173 IWL_ERR(mvm, 5174 "failed to assign new_ctx during channel switch\n"); 5175 goto out_reassign; 5176 } 5177 5178 goto out; 5179 5180 out_reassign: 5181 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5182 vifs[0].old_ctx, true)) { 5183 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5184 goto out_restart; 5185 } 5186 5187 goto out; 5188 5189 out_restart: 5190 /* things keep failing, better restart the hw */ 5191 iwl_mvm_nic_restart(mvm, false); 5192 5193 out: 5194 mutex_unlock(&mvm->mutex); 5195 5196 return ret; 5197 } 5198 5199 /* Execute the common part for both MLD and non-MLD modes */ 5200 int 5201 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5202 struct ieee80211_vif_chanctx_switch *vifs, 5203 int n_vifs, 5204 enum ieee80211_chanctx_switch_mode mode, 5205 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5206 { 5207 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5208 int ret; 5209 5210 /* we only support a single-vif right now */ 5211 if (n_vifs > 1) 5212 return -EOPNOTSUPP; 5213 5214 switch (mode) { 5215 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5216 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5217 break; 5218 case CHANCTX_SWMODE_REASSIGN_VIF: 5219 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5220 break; 5221 default: 5222 ret = -EOPNOTSUPP; 5223 break; 5224 } 5225 5226 return ret; 5227 } 5228 5229 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5230 struct ieee80211_vif_chanctx_switch *vifs, 5231 int n_vifs, 5232 enum ieee80211_chanctx_switch_mode mode) 5233 { 5234 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5235 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5236 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5237 }; 5238 5239 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5240 } 5241 5242 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5243 { 5244 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5245 5246 return mvm->ibss_manager; 5247 } 5248 5249 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5250 bool set) 5251 { 5252 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5253 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5254 5255 if (!mvm_sta || !mvm_sta->vif) { 5256 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5257 return -EINVAL; 5258 } 5259 5260 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5261 &mvm_sta->vif->bss_conf); 5262 } 5263 5264 #ifdef CONFIG_NL80211_TESTMODE 5265 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5266 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5267 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5268 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5269 }; 5270 5271 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5272 struct ieee80211_vif *vif, 5273 void *data, int len) 5274 { 5275 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5276 int err; 5277 u32 noa_duration; 5278 5279 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5280 iwl_mvm_tm_policy, NULL); 5281 if (err) 5282 return err; 5283 5284 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5285 return -EINVAL; 5286 5287 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5288 case IWL_MVM_TM_CMD_SET_NOA: 5289 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5290 !vif->bss_conf.enable_beacon || 5291 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5292 return -EINVAL; 5293 5294 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5295 if (noa_duration >= vif->bss_conf.beacon_int) 5296 return -EINVAL; 5297 5298 mvm->noa_duration = noa_duration; 5299 mvm->noa_vif = vif; 5300 5301 return iwl_mvm_update_quotas(mvm, true, NULL); 5302 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5303 /* must be associated client vif - ignore authorized */ 5304 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5305 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5306 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5307 return -EINVAL; 5308 5309 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5310 return iwl_mvm_enable_beacon_filter(mvm, vif); 5311 return iwl_mvm_disable_beacon_filter(mvm, vif); 5312 } 5313 5314 return -EOPNOTSUPP; 5315 } 5316 5317 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5318 struct ieee80211_vif *vif, 5319 void *data, int len) 5320 { 5321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5322 int err; 5323 5324 mutex_lock(&mvm->mutex); 5325 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5326 mutex_unlock(&mvm->mutex); 5327 5328 return err; 5329 } 5330 #endif 5331 5332 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5333 struct ieee80211_channel_switch *chsw) 5334 { 5335 /* By implementing this operation, we prevent mac80211 from 5336 * starting its own channel switch timer, so that we can call 5337 * ieee80211_chswitch_done() ourselves at the right time 5338 * (which is when the absence time event starts). 5339 */ 5340 5341 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5342 "dummy channel switch op\n"); 5343 } 5344 5345 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5346 struct ieee80211_vif *vif, 5347 struct ieee80211_channel_switch *chsw) 5348 { 5349 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5350 struct iwl_chan_switch_te_cmd cmd = { 5351 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5352 mvmvif->color)), 5353 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5354 .tsf = cpu_to_le32(chsw->timestamp), 5355 .cs_count = chsw->count, 5356 .cs_mode = chsw->block_tx, 5357 }; 5358 5359 lockdep_assert_held(&mvm->mutex); 5360 5361 if (chsw->delay) 5362 cmd.cs_delayed_bcn_count = 5363 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5364 5365 return iwl_mvm_send_cmd_pdu(mvm, 5366 WIDE_ID(MAC_CONF_GROUP, 5367 CHANNEL_SWITCH_TIME_EVENT_CMD), 5368 0, sizeof(cmd), &cmd); 5369 } 5370 5371 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5372 struct ieee80211_vif *vif, 5373 struct ieee80211_channel_switch *chsw) 5374 { 5375 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5376 u32 apply_time; 5377 5378 /* Schedule the time event to a bit before beacon 1, 5379 * to make sure we're in the new channel when the 5380 * GO/AP arrives. In case count <= 1 immediately schedule the 5381 * TE (this might result with some packet loss or connection 5382 * loss). 5383 */ 5384 if (chsw->count <= 1) 5385 apply_time = 0; 5386 else 5387 apply_time = chsw->device_timestamp + 5388 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5389 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5390 5391 if (chsw->block_tx) 5392 iwl_mvm_csa_client_absent(mvm, vif); 5393 5394 if (mvmvif->bf_data.bf_enabled) { 5395 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5396 5397 if (ret) 5398 return ret; 5399 } 5400 5401 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5402 apply_time); 5403 5404 return 0; 5405 } 5406 5407 #define IWL_MAX_CSA_BLOCK_TX 1500 5408 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5409 struct ieee80211_vif *vif, 5410 struct ieee80211_channel_switch *chsw) 5411 { 5412 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5413 struct ieee80211_vif *csa_vif; 5414 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5415 int ret; 5416 5417 mutex_lock(&mvm->mutex); 5418 5419 mvmvif->csa_failed = false; 5420 5421 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5422 chsw->chandef.center_freq1); 5423 5424 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5425 ieee80211_vif_to_wdev(vif), 5426 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5427 5428 switch (vif->type) { 5429 case NL80211_IFTYPE_AP: 5430 csa_vif = 5431 rcu_dereference_protected(mvm->csa_vif, 5432 lockdep_is_held(&mvm->mutex)); 5433 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5434 "Another CSA is already in progress")) { 5435 ret = -EBUSY; 5436 goto out_unlock; 5437 } 5438 5439 /* we still didn't unblock tx. prevent new CS meanwhile */ 5440 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5441 lockdep_is_held(&mvm->mutex))) { 5442 ret = -EBUSY; 5443 goto out_unlock; 5444 } 5445 5446 rcu_assign_pointer(mvm->csa_vif, vif); 5447 5448 if (WARN_ONCE(mvmvif->csa_countdown, 5449 "Previous CSA countdown didn't complete")) { 5450 ret = -EBUSY; 5451 goto out_unlock; 5452 } 5453 5454 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5455 5456 break; 5457 case NL80211_IFTYPE_STATION: 5458 /* 5459 * In the new flow FW is in charge of timing the switch so there 5460 * is no need for all of this 5461 */ 5462 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5463 CHANNEL_SWITCH_ERROR_NOTIF, 5464 0)) 5465 break; 5466 5467 /* 5468 * We haven't configured the firmware to be associated yet since 5469 * we don't know the dtim period. In this case, the firmware can't 5470 * track the beacons. 5471 */ 5472 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5473 ret = -EBUSY; 5474 goto out_unlock; 5475 } 5476 5477 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5478 hweight16(vif->valid_links) <= 1) 5479 schedule_delayed_work(&mvmvif->csa_work, 0); 5480 5481 if (chsw->block_tx) { 5482 /* 5483 * In case of undetermined / long time with immediate 5484 * quiet monitor status to gracefully disconnect 5485 */ 5486 if (!chsw->count || 5487 chsw->count * vif->bss_conf.beacon_int > 5488 IWL_MAX_CSA_BLOCK_TX) 5489 schedule_delayed_work(&mvmvif->csa_work, 5490 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5491 } 5492 5493 if (!fw_has_capa(&mvm->fw->ucode_capa, 5494 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5495 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5496 if (ret) 5497 goto out_unlock; 5498 } else { 5499 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5500 } 5501 5502 mvmvif->csa_count = chsw->count; 5503 mvmvif->csa_misbehave = false; 5504 break; 5505 default: 5506 break; 5507 } 5508 5509 mvmvif->ps_disabled = true; 5510 5511 ret = iwl_mvm_power_update_ps(mvm); 5512 if (ret) 5513 goto out_unlock; 5514 5515 /* we won't be on this channel any longer */ 5516 iwl_mvm_teardown_tdls_peers(mvm); 5517 5518 out_unlock: 5519 mutex_unlock(&mvm->mutex); 5520 5521 return ret; 5522 } 5523 5524 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5525 struct ieee80211_vif *vif, 5526 struct ieee80211_channel_switch *chsw) 5527 { 5528 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5529 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5530 struct iwl_chan_switch_te_cmd cmd = { 5531 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5532 mvmvif->color)), 5533 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5534 .tsf = cpu_to_le32(chsw->timestamp), 5535 .cs_count = chsw->count, 5536 .cs_mode = chsw->block_tx, 5537 }; 5538 5539 /* 5540 * In the new flow FW is in charge of timing the switch so there is no 5541 * need for all of this 5542 */ 5543 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5544 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5545 return; 5546 5547 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5548 return; 5549 5550 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5551 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5552 5553 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5554 if (mvmvif->csa_misbehave) { 5555 struct ieee80211_bss_conf *link_conf; 5556 5557 /* Second time, give up on this AP*/ 5558 5559 link_conf = wiphy_dereference(hw->wiphy, 5560 vif->link_conf[chsw->link_id]); 5561 if (WARN_ON(!link_conf)) 5562 return; 5563 5564 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5565 ieee80211_chswitch_done(vif, false, 0); 5566 mvmvif->csa_misbehave = false; 5567 return; 5568 } 5569 mvmvif->csa_misbehave = true; 5570 } 5571 mvmvif->csa_count = chsw->count; 5572 5573 mutex_lock(&mvm->mutex); 5574 if (mvmvif->csa_failed) 5575 goto out_unlock; 5576 5577 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5578 WIDE_ID(MAC_CONF_GROUP, 5579 CHANNEL_SWITCH_TIME_EVENT_CMD), 5580 0, sizeof(cmd), &cmd)); 5581 out_unlock: 5582 mutex_unlock(&mvm->mutex); 5583 } 5584 5585 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5586 { 5587 int i; 5588 5589 if (!iwl_mvm_has_new_tx_api(mvm)) { 5590 if (drop) { 5591 mutex_lock(&mvm->mutex); 5592 iwl_mvm_flush_tx_path(mvm, 5593 iwl_mvm_flushable_queues(mvm) & queues); 5594 mutex_unlock(&mvm->mutex); 5595 } else { 5596 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5597 } 5598 return; 5599 } 5600 5601 mutex_lock(&mvm->mutex); 5602 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5603 struct ieee80211_sta *sta; 5604 5605 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5606 lockdep_is_held(&mvm->mutex)); 5607 if (IS_ERR_OR_NULL(sta)) 5608 continue; 5609 5610 if (drop) 5611 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5612 else 5613 iwl_mvm_wait_sta_queues_empty(mvm, 5614 iwl_mvm_sta_from_mac80211(sta)); 5615 } 5616 mutex_unlock(&mvm->mutex); 5617 } 5618 5619 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5620 u32 queues, bool drop) 5621 { 5622 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5623 struct iwl_mvm_vif *mvmvif; 5624 struct iwl_mvm_sta *mvmsta; 5625 struct ieee80211_sta *sta; 5626 bool ap_sta_done = false; 5627 int i; 5628 u32 msk = 0; 5629 5630 if (!vif) { 5631 iwl_mvm_flush_no_vif(mvm, queues, drop); 5632 return; 5633 } 5634 5635 /* Make sure we're done with the deferred traffic before flushing */ 5636 flush_work(&mvm->add_stream_wk); 5637 5638 mutex_lock(&mvm->mutex); 5639 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5640 5641 /* flush the AP-station and all TDLS peers */ 5642 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5643 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5644 lockdep_is_held(&mvm->mutex)); 5645 if (IS_ERR_OR_NULL(sta)) 5646 continue; 5647 5648 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5649 if (mvmsta->vif != vif) 5650 continue; 5651 5652 if (sta == mvmvif->ap_sta) { 5653 if (ap_sta_done) 5654 continue; 5655 ap_sta_done = true; 5656 } 5657 5658 if (drop) { 5659 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5660 mvmsta->tfd_queue_msk)) 5661 IWL_ERR(mvm, "flush request fail\n"); 5662 } else { 5663 if (iwl_mvm_has_new_tx_api(mvm)) 5664 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5665 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5666 msk |= mvmsta->tfd_queue_msk; 5667 } 5668 } 5669 5670 mutex_unlock(&mvm->mutex); 5671 5672 /* this can take a while, and we may need/want other operations 5673 * to succeed while doing this, so do it without the mutex held 5674 */ 5675 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5676 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5677 } 5678 5679 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5680 struct ieee80211_sta *sta) 5681 { 5682 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5683 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5684 struct iwl_mvm_link_sta *mvm_link_sta; 5685 struct ieee80211_link_sta *link_sta; 5686 int link_id; 5687 5688 mutex_lock(&mvm->mutex); 5689 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5690 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5691 lockdep_is_held(&mvm->mutex)); 5692 if (!mvm_link_sta) 5693 continue; 5694 5695 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5696 mvmsta->tfd_queue_msk)) 5697 IWL_ERR(mvm, "flush request fail\n"); 5698 } 5699 mutex_unlock(&mvm->mutex); 5700 } 5701 5702 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5703 struct survey_info *survey) 5704 { 5705 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5706 int ret = 0; 5707 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5708 WIDE_ID(SYSTEM_GROUP, 5709 SYSTEM_STATISTICS_CMD), 5710 IWL_FW_CMD_VER_UNKNOWN); 5711 5712 memset(survey, 0, sizeof(*survey)); 5713 5714 /* only support global statistics right now */ 5715 if (idx != 0) 5716 return -ENOENT; 5717 5718 if (!fw_has_capa(&mvm->fw->ucode_capa, 5719 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5720 return -ENOENT; 5721 5722 mutex_lock(&mvm->mutex); 5723 5724 if (iwl_mvm_firmware_running(mvm)) { 5725 ret = iwl_mvm_request_statistics(mvm, false); 5726 if (ret) 5727 goto out; 5728 } 5729 5730 survey->filled = SURVEY_INFO_TIME_RX | 5731 SURVEY_INFO_TIME_TX; 5732 5733 survey->time_rx = mvm->accu_radio_stats.rx_time + 5734 mvm->radio_stats.rx_time; 5735 do_div(survey->time_rx, USEC_PER_MSEC); 5736 5737 survey->time_tx = mvm->accu_radio_stats.tx_time + 5738 mvm->radio_stats.tx_time; 5739 do_div(survey->time_tx, USEC_PER_MSEC); 5740 5741 /* the new fw api doesn't support the following fields */ 5742 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 5743 goto out; 5744 5745 survey->filled |= SURVEY_INFO_TIME | 5746 SURVEY_INFO_TIME_SCAN; 5747 survey->time = mvm->accu_radio_stats.on_time_rf + 5748 mvm->radio_stats.on_time_rf; 5749 do_div(survey->time, USEC_PER_MSEC); 5750 5751 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5752 mvm->radio_stats.on_time_scan; 5753 do_div(survey->time_scan, USEC_PER_MSEC); 5754 5755 out: 5756 mutex_unlock(&mvm->mutex); 5757 return ret; 5758 } 5759 5760 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5761 { 5762 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5763 u32 gi_ltf; 5764 5765 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5766 case RATE_MCS_CHAN_WIDTH_20: 5767 rinfo->bw = RATE_INFO_BW_20; 5768 break; 5769 case RATE_MCS_CHAN_WIDTH_40: 5770 rinfo->bw = RATE_INFO_BW_40; 5771 break; 5772 case RATE_MCS_CHAN_WIDTH_80: 5773 rinfo->bw = RATE_INFO_BW_80; 5774 break; 5775 case RATE_MCS_CHAN_WIDTH_160: 5776 rinfo->bw = RATE_INFO_BW_160; 5777 break; 5778 case RATE_MCS_CHAN_WIDTH_320: 5779 rinfo->bw = RATE_INFO_BW_320; 5780 break; 5781 } 5782 5783 if (format == RATE_MCS_CCK_MSK || 5784 format == RATE_MCS_LEGACY_OFDM_MSK) { 5785 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5786 5787 /* add the offset needed to get to the legacy ofdm indices */ 5788 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5789 rate += IWL_FIRST_OFDM_RATE; 5790 5791 switch (rate) { 5792 case IWL_RATE_1M_INDEX: 5793 rinfo->legacy = 10; 5794 break; 5795 case IWL_RATE_2M_INDEX: 5796 rinfo->legacy = 20; 5797 break; 5798 case IWL_RATE_5M_INDEX: 5799 rinfo->legacy = 55; 5800 break; 5801 case IWL_RATE_11M_INDEX: 5802 rinfo->legacy = 110; 5803 break; 5804 case IWL_RATE_6M_INDEX: 5805 rinfo->legacy = 60; 5806 break; 5807 case IWL_RATE_9M_INDEX: 5808 rinfo->legacy = 90; 5809 break; 5810 case IWL_RATE_12M_INDEX: 5811 rinfo->legacy = 120; 5812 break; 5813 case IWL_RATE_18M_INDEX: 5814 rinfo->legacy = 180; 5815 break; 5816 case IWL_RATE_24M_INDEX: 5817 rinfo->legacy = 240; 5818 break; 5819 case IWL_RATE_36M_INDEX: 5820 rinfo->legacy = 360; 5821 break; 5822 case IWL_RATE_48M_INDEX: 5823 rinfo->legacy = 480; 5824 break; 5825 case IWL_RATE_54M_INDEX: 5826 rinfo->legacy = 540; 5827 } 5828 return; 5829 } 5830 5831 rinfo->nss = u32_get_bits(rate_n_flags, 5832 RATE_MCS_NSS_MSK) + 1; 5833 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5834 RATE_HT_MCS_INDEX(rate_n_flags) : 5835 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5836 5837 if (rate_n_flags & RATE_MCS_SGI_MSK) 5838 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5839 5840 switch (format) { 5841 case RATE_MCS_EHT_MSK: 5842 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5843 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5844 break; 5845 case RATE_MCS_HE_MSK: 5846 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5847 5848 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5849 5850 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5851 rinfo->bw = RATE_INFO_BW_HE_RU; 5852 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5853 } 5854 5855 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5856 case RATE_MCS_HE_TYPE_SU: 5857 case RATE_MCS_HE_TYPE_EXT_SU: 5858 if (gi_ltf == 0 || gi_ltf == 1) 5859 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5860 else if (gi_ltf == 2) 5861 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5862 else if (gi_ltf == 3) 5863 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5864 else 5865 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5866 break; 5867 case RATE_MCS_HE_TYPE_MU: 5868 if (gi_ltf == 0 || gi_ltf == 1) 5869 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5870 else if (gi_ltf == 2) 5871 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5872 else 5873 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5874 break; 5875 case RATE_MCS_HE_TYPE_TRIG: 5876 if (gi_ltf == 0 || gi_ltf == 1) 5877 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5878 else 5879 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5880 break; 5881 } 5882 5883 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5884 rinfo->he_dcm = 1; 5885 break; 5886 case RATE_MCS_HT_MSK: 5887 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5888 break; 5889 case RATE_MCS_VHT_MSK: 5890 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5891 break; 5892 } 5893 } 5894 5895 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5896 struct ieee80211_vif *vif, 5897 struct ieee80211_sta *sta, 5898 struct station_info *sinfo) 5899 { 5900 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5901 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5902 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5903 int i; 5904 5905 if (mvmsta->deflink.avg_energy) { 5906 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 5907 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5908 } 5909 5910 if (iwl_mvm_has_tlc_offload(mvm)) { 5911 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 5912 5913 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5914 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5915 } 5916 5917 /* if beacon filtering isn't on mac80211 does it anyway */ 5918 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5919 return; 5920 5921 if (!vif->cfg.assoc) 5922 return; 5923 5924 mutex_lock(&mvm->mutex); 5925 5926 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 5927 goto unlock; 5928 5929 if (iwl_mvm_request_statistics(mvm, false)) 5930 goto unlock; 5931 5932 sinfo->rx_beacon = 0; 5933 for_each_mvm_vif_valid_link(mvmvif, i) 5934 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 5935 mvmvif->link[i]->beacon_stats.accu_num_beacons; 5936 5937 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5938 if (mvmvif->deflink.beacon_stats.avg_signal) { 5939 /* firmware only reports a value after RXing a few beacons */ 5940 sinfo->rx_beacon_signal_avg = 5941 mvmvif->deflink.beacon_stats.avg_signal; 5942 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5943 } 5944 unlock: 5945 mutex_unlock(&mvm->mutex); 5946 } 5947 5948 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5949 struct ieee80211_vif *vif, 5950 const struct ieee80211_mlme_event *mlme) 5951 { 5952 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5953 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5954 iwl_dbg_tlv_time_point(&mvm->fwrt, 5955 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5956 NULL); 5957 return; 5958 } 5959 5960 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5961 iwl_dbg_tlv_time_point(&mvm->fwrt, 5962 IWL_FW_INI_TIME_POINT_DEASSOC, 5963 NULL); 5964 return; 5965 } 5966 } 5967 5968 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5969 struct ieee80211_vif *vif, 5970 const struct ieee80211_event *event) 5971 { 5972 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5973 do { \ 5974 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5975 break; \ 5976 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5977 } while (0) 5978 5979 struct iwl_fw_dbg_trigger_tlv *trig; 5980 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5981 5982 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5983 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5984 return; 5985 } 5986 5987 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5988 FW_DBG_TRIGGER_MLME); 5989 if (!trig) 5990 return; 5991 5992 trig_mlme = (void *)trig->data; 5993 5994 if (event->u.mlme.data == ASSOC_EVENT) { 5995 if (event->u.mlme.status == MLME_DENIED) 5996 CHECK_MLME_TRIGGER(stop_assoc_denied, 5997 "DENIED ASSOC: reason %d", 5998 event->u.mlme.reason); 5999 else if (event->u.mlme.status == MLME_TIMEOUT) 6000 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6001 "ASSOC TIMEOUT"); 6002 } else if (event->u.mlme.data == AUTH_EVENT) { 6003 if (event->u.mlme.status == MLME_DENIED) 6004 CHECK_MLME_TRIGGER(stop_auth_denied, 6005 "DENIED AUTH: reason %d", 6006 event->u.mlme.reason); 6007 else if (event->u.mlme.status == MLME_TIMEOUT) 6008 CHECK_MLME_TRIGGER(stop_auth_timeout, 6009 "AUTH TIMEOUT"); 6010 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6011 CHECK_MLME_TRIGGER(stop_rx_deauth, 6012 "DEAUTH RX %d", event->u.mlme.reason); 6013 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6014 CHECK_MLME_TRIGGER(stop_tx_deauth, 6015 "DEAUTH TX %d", event->u.mlme.reason); 6016 } 6017 #undef CHECK_MLME_TRIGGER 6018 } 6019 6020 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6021 struct ieee80211_vif *vif, 6022 const struct ieee80211_event *event) 6023 { 6024 struct iwl_fw_dbg_trigger_tlv *trig; 6025 struct iwl_fw_dbg_trigger_ba *ba_trig; 6026 6027 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6028 FW_DBG_TRIGGER_BA); 6029 if (!trig) 6030 return; 6031 6032 ba_trig = (void *)trig->data; 6033 6034 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6035 return; 6036 6037 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6038 "BAR received from %pM, tid %d, ssn %d", 6039 event->u.ba.sta->addr, event->u.ba.tid, 6040 event->u.ba.ssn); 6041 } 6042 6043 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6044 struct ieee80211_vif *vif, 6045 const struct ieee80211_event *event) 6046 { 6047 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6048 6049 switch (event->type) { 6050 case MLME_EVENT: 6051 iwl_mvm_event_mlme_callback(mvm, vif, event); 6052 break; 6053 case BAR_RX_EVENT: 6054 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6055 break; 6056 case BA_FRAME_TIMEOUT: 6057 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6058 event->u.ba.tid); 6059 break; 6060 default: 6061 break; 6062 } 6063 } 6064 6065 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6066 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6067 enum iwl_mvm_rxq_notif_type type, 6068 bool sync, 6069 const void *data, u32 size) 6070 { 6071 struct { 6072 struct iwl_rxq_sync_cmd cmd; 6073 struct iwl_mvm_internal_rxq_notif notif; 6074 } __packed cmd = { 6075 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6076 .cmd.count = 6077 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6078 size), 6079 .notif.type = type, 6080 .notif.sync = sync, 6081 }; 6082 struct iwl_host_cmd hcmd = { 6083 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6084 .data[0] = &cmd, 6085 .len[0] = sizeof(cmd), 6086 .data[1] = data, 6087 .len[1] = size, 6088 .flags = sync ? 0 : CMD_ASYNC, 6089 }; 6090 int ret; 6091 6092 /* size must be a multiple of DWORD */ 6093 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6094 return; 6095 6096 if (!iwl_mvm_has_new_rx_api(mvm)) 6097 return; 6098 6099 if (sync) { 6100 cmd.notif.cookie = mvm->queue_sync_cookie; 6101 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6102 } 6103 6104 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6105 if (ret) { 6106 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6107 goto out; 6108 } 6109 6110 if (sync) { 6111 lockdep_assert_held(&mvm->mutex); 6112 ret = wait_event_timeout(mvm->rx_sync_waitq, 6113 READ_ONCE(mvm->queue_sync_state) == 0 || 6114 iwl_mvm_is_radio_hw_killed(mvm), 6115 SYNC_RX_QUEUE_TIMEOUT); 6116 WARN_ONCE(!ret && !iwl_mvm_is_radio_hw_killed(mvm), 6117 "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6118 mvm->queue_sync_state, 6119 mvm->queue_sync_cookie); 6120 } 6121 6122 out: 6123 if (sync) { 6124 mvm->queue_sync_state = 0; 6125 mvm->queue_sync_cookie++; 6126 } 6127 } 6128 6129 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6130 { 6131 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6132 6133 mutex_lock(&mvm->mutex); 6134 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6135 mutex_unlock(&mvm->mutex); 6136 } 6137 6138 int 6139 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6140 struct ieee80211_vif *vif, 6141 struct cfg80211_ftm_responder_stats *stats) 6142 { 6143 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6144 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6145 6146 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6147 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6148 return -EINVAL; 6149 6150 mutex_lock(&mvm->mutex); 6151 *stats = mvm->ftm_resp_stats; 6152 mutex_unlock(&mvm->mutex); 6153 6154 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6155 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6156 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6157 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6158 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6159 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6160 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6161 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6162 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6163 6164 return 0; 6165 } 6166 6167 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6168 struct cfg80211_pmsr_request *request) 6169 { 6170 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6171 int ret; 6172 6173 mutex_lock(&mvm->mutex); 6174 ret = iwl_mvm_ftm_start(mvm, vif, request); 6175 mutex_unlock(&mvm->mutex); 6176 6177 return ret; 6178 } 6179 6180 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6181 struct cfg80211_pmsr_request *request) 6182 { 6183 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6184 6185 mutex_lock(&mvm->mutex); 6186 iwl_mvm_ftm_abort(mvm, request); 6187 mutex_unlock(&mvm->mutex); 6188 } 6189 6190 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6191 { 6192 u8 protocol = ip_hdr(skb)->protocol; 6193 6194 if (!IS_ENABLED(CONFIG_INET)) 6195 return false; 6196 6197 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6198 } 6199 6200 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6201 struct sk_buff *head, 6202 struct sk_buff *skb) 6203 { 6204 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6205 6206 /* For now don't aggregate IPv6 in AMSDU */ 6207 if (skb->protocol != htons(ETH_P_IP)) 6208 return false; 6209 6210 if (!iwl_mvm_is_csum_supported(mvm)) 6211 return true; 6212 6213 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6214 } 6215 6216 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6217 struct ieee80211_vif *vif, 6218 struct cfg80211_set_hw_timestamp *hwts) 6219 { 6220 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6221 u32 protocols = 0; 6222 int ret; 6223 6224 /* HW timestamping is only supported for a specific station */ 6225 if (!hwts->macaddr) 6226 return -EOPNOTSUPP; 6227 6228 if (hwts->enable) 6229 protocols = 6230 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6231 6232 mutex_lock(&mvm->mutex); 6233 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6234 mutex_unlock(&mvm->mutex); 6235 6236 return ret; 6237 } 6238 6239 const struct ieee80211_ops iwl_mvm_hw_ops = { 6240 .tx = iwl_mvm_mac_tx, 6241 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6242 .ampdu_action = iwl_mvm_mac_ampdu_action, 6243 .get_antenna = iwl_mvm_op_get_antenna, 6244 .set_antenna = iwl_mvm_op_set_antenna, 6245 .start = iwl_mvm_mac_start, 6246 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6247 .stop = iwl_mvm_mac_stop, 6248 .add_interface = iwl_mvm_mac_add_interface, 6249 .remove_interface = iwl_mvm_mac_remove_interface, 6250 .config = iwl_mvm_mac_config, 6251 .prepare_multicast = iwl_mvm_prepare_multicast, 6252 .configure_filter = iwl_mvm_configure_filter, 6253 .config_iface_filter = iwl_mvm_config_iface_filter, 6254 .bss_info_changed = iwl_mvm_bss_info_changed, 6255 .hw_scan = iwl_mvm_mac_hw_scan, 6256 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6257 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6258 .sta_state = iwl_mvm_mac_sta_state, 6259 .sta_notify = iwl_mvm_mac_sta_notify, 6260 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6261 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6262 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6263 .sta_rc_update = iwl_mvm_sta_rc_update, 6264 .conf_tx = iwl_mvm_mac_conf_tx, 6265 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6266 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6267 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6268 .flush = iwl_mvm_mac_flush, 6269 .flush_sta = iwl_mvm_mac_flush_sta, 6270 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6271 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6272 .set_key = iwl_mvm_mac_set_key, 6273 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6274 .remain_on_channel = iwl_mvm_roc, 6275 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6276 .add_chanctx = iwl_mvm_add_chanctx, 6277 .remove_chanctx = iwl_mvm_remove_chanctx, 6278 .change_chanctx = iwl_mvm_change_chanctx, 6279 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6280 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6281 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6282 6283 .start_ap = iwl_mvm_start_ap, 6284 .stop_ap = iwl_mvm_stop_ap, 6285 .join_ibss = iwl_mvm_start_ibss, 6286 .leave_ibss = iwl_mvm_stop_ibss, 6287 6288 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6289 6290 .set_tim = iwl_mvm_set_tim, 6291 6292 .channel_switch = iwl_mvm_channel_switch, 6293 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6294 .post_channel_switch = iwl_mvm_post_channel_switch, 6295 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6296 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6297 6298 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6299 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6300 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6301 6302 .event_callback = iwl_mvm_mac_event_callback, 6303 6304 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6305 6306 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6307 6308 #ifdef CONFIG_PM_SLEEP 6309 /* look at d3.c */ 6310 .suspend = iwl_mvm_suspend, 6311 .resume = iwl_mvm_resume, 6312 .set_wakeup = iwl_mvm_set_wakeup, 6313 .set_rekey_data = iwl_mvm_set_rekey_data, 6314 #if IS_ENABLED(CONFIG_IPV6) 6315 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6316 #endif 6317 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6318 #endif 6319 .get_survey = iwl_mvm_mac_get_survey, 6320 .sta_statistics = iwl_mvm_mac_sta_statistics, 6321 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6322 .start_pmsr = iwl_mvm_start_pmsr, 6323 .abort_pmsr = iwl_mvm_abort_pmsr, 6324 6325 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6326 #ifdef CONFIG_IWLWIFI_DEBUGFS 6327 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6328 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6329 #endif 6330 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6331 }; 6332