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_DISABLE_WEXT; 364 /* we handle this already earlier, but need it for MLO */ 365 ieee80211_hw_set(hw, HANDLES_QUIET_CSA); 366 } 367 368 /* With MLD FW API, it tracks timing by itself, 369 * no need for any timing from the host 370 */ 371 if (!mvm->mld_api_is_used) 372 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 373 374 /* We should probably have this, but mac80211 375 * currently doesn't support it for MLO. 376 */ 377 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) 378 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 379 380 /* 381 * On older devices, enabling TX A-MSDU occasionally leads to 382 * something getting messed up, the command read from the FIFO 383 * gets out of sync and isn't a TX command, so that we have an 384 * assert EDC. 385 * 386 * It's not clear where the bug is, but since we didn't used to 387 * support A-MSDU until moving the mac80211 iTXQs, just leave it 388 * for older devices. We also don't see this issue on any newer 389 * devices. 390 */ 391 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 392 ieee80211_hw_set(hw, TX_AMSDU); 393 ieee80211_hw_set(hw, TX_FRAG_LIST); 394 395 if (iwl_mvm_has_tlc_offload(mvm)) { 396 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 397 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 398 } 399 400 /* We want to use the mac80211's reorder buffer for 9000 */ 401 if (iwl_mvm_has_new_rx_api(mvm) && 402 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 403 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 404 405 if (fw_has_capa(&mvm->fw->ucode_capa, 406 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 407 ieee80211_hw_set(hw, AP_LINK_PS); 408 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 409 /* 410 * we absolutely need this for the new TX API since that comes 411 * with many more queues than the current code can deal with 412 * for station powersave 413 */ 414 return -EINVAL; 415 } 416 417 if (mvm->trans->num_rx_queues > 1) 418 ieee80211_hw_set(hw, USES_RSS); 419 420 if (mvm->trans->max_skb_frags) 421 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 422 423 hw->queues = IEEE80211_NUM_ACS; 424 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 425 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 426 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 427 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 428 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 429 430 hw->radiotap_timestamp.units_pos = 431 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 432 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 433 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 434 hw->radiotap_timestamp.accuracy = 22; 435 436 if (!iwl_mvm_has_tlc_offload(mvm)) 437 hw->rate_control_algorithm = RS_NAME; 438 439 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 440 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 441 hw->max_tx_fragments = mvm->trans->max_skb_frags; 442 443 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 444 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 445 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 446 hw->wiphy->cipher_suites = mvm->ciphers; 447 448 if (iwl_mvm_has_new_rx_api(mvm)) { 449 mvm->ciphers[hw->wiphy->n_cipher_suites] = 450 WLAN_CIPHER_SUITE_GCMP; 451 hw->wiphy->n_cipher_suites++; 452 mvm->ciphers[hw->wiphy->n_cipher_suites] = 453 WLAN_CIPHER_SUITE_GCMP_256; 454 hw->wiphy->n_cipher_suites++; 455 } 456 457 if (iwlwifi_mod_params.swcrypto) 458 IWL_ERR(mvm, 459 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 460 if (!iwlwifi_mod_params.bt_coex_active) 461 IWL_ERR(mvm, 462 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 463 464 ieee80211_hw_set(hw, MFP_CAPABLE); 465 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 466 hw->wiphy->n_cipher_suites++; 467 if (iwl_mvm_has_new_rx_api(mvm)) { 468 mvm->ciphers[hw->wiphy->n_cipher_suites] = 469 WLAN_CIPHER_SUITE_BIP_GMAC_128; 470 hw->wiphy->n_cipher_suites++; 471 mvm->ciphers[hw->wiphy->n_cipher_suites] = 472 WLAN_CIPHER_SUITE_BIP_GMAC_256; 473 hw->wiphy->n_cipher_suites++; 474 } 475 476 wiphy_ext_feature_set(hw->wiphy, 477 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 478 wiphy_ext_feature_set(hw->wiphy, 479 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 480 481 if (fw_has_capa(&mvm->fw->ucode_capa, 482 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 483 wiphy_ext_feature_set(hw->wiphy, 484 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 485 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 486 } 487 488 if (sec_key_ver && 489 fw_has_capa(&mvm->fw->ucode_capa, 490 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 491 wiphy_ext_feature_set(hw->wiphy, 492 NL80211_EXT_FEATURE_BEACON_PROTECTION); 493 else if (fw_has_capa(&mvm->fw->ucode_capa, 494 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 495 wiphy_ext_feature_set(hw->wiphy, 496 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 497 498 if (fw_has_capa(&mvm->fw->ucode_capa, 499 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 500 hw->wiphy->hw_timestamp_max_peers = 1; 501 502 if (fw_has_capa(&mvm->fw->ucode_capa, 503 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 504 wiphy_ext_feature_set(hw->wiphy, 505 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 506 507 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 508 hw->wiphy->features |= 509 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 510 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 511 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 512 513 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 514 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 515 hw->chanctx_data_size = sizeof(u16); 516 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 517 518 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 519 BIT(NL80211_IFTYPE_P2P_CLIENT) | 520 BIT(NL80211_IFTYPE_AP) | 521 BIT(NL80211_IFTYPE_P2P_GO) | 522 BIT(NL80211_IFTYPE_P2P_DEVICE) | 523 BIT(NL80211_IFTYPE_ADHOC); 524 525 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 526 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 527 528 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 529 * the hw, preventing us to control which key(id) to use per MPDU. 530 * Till that's fixed we can't use Extended Key ID for the newer cards. 531 */ 532 if (!iwl_mvm_has_new_tx_api(mvm)) 533 wiphy_ext_feature_set(hw->wiphy, 534 NL80211_EXT_FEATURE_EXT_KEY_ID); 535 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 536 537 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 538 if (iwl_mvm_is_lar_supported(mvm)) 539 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 540 else 541 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 542 REGULATORY_DISABLE_BEACON_HINTS; 543 544 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 545 wiphy_ext_feature_set(hw->wiphy, 546 NL80211_EXT_FEATURE_DFS_CONCURRENT); 547 548 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 549 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 550 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 551 552 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 553 hw->wiphy->n_iface_combinations = 554 ARRAY_SIZE(iwl_mvm_iface_combinations); 555 556 hw->wiphy->max_remain_on_channel_duration = 10000; 557 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 558 559 /* Extract MAC address */ 560 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 561 hw->wiphy->addresses = mvm->addresses; 562 hw->wiphy->n_addresses = 1; 563 564 /* Extract additional MAC addresses if available */ 565 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 566 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 567 568 for (i = 1; i < num_mac; i++) { 569 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 570 ETH_ALEN); 571 mvm->addresses[i].addr[5]++; 572 hw->wiphy->n_addresses++; 573 } 574 575 iwl_mvm_reset_phy_ctxts(mvm); 576 577 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 578 579 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 580 581 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 582 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 583 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 584 585 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 586 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 587 else 588 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 589 590 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 591 hw->wiphy->bands[NL80211_BAND_2GHZ] = 592 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 593 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 594 hw->wiphy->bands[NL80211_BAND_5GHZ] = 595 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 596 597 if (fw_has_capa(&mvm->fw->ucode_capa, 598 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 599 fw_has_api(&mvm->fw->ucode_capa, 600 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 601 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 602 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 603 } 604 if (fw_has_capa(&mvm->fw->ucode_capa, 605 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 606 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 607 hw->wiphy->bands[NL80211_BAND_6GHZ] = 608 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 609 610 hw->wiphy->hw_version = mvm->trans->hw_id; 611 612 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 613 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 614 else 615 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 616 617 hw->wiphy->max_sched_scan_reqs = 1; 618 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 619 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 620 /* we create the 802.11 header and zero length SSID IE. */ 621 hw->wiphy->max_sched_scan_ie_len = 622 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 623 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 624 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 625 626 /* 627 * the firmware uses u8 for num of iterations, but 0xff is saved for 628 * infinite loop, so the maximum number of iterations is actually 254. 629 */ 630 hw->wiphy->max_sched_scan_plan_iterations = 254; 631 632 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 633 NL80211_FEATURE_LOW_PRIORITY_SCAN | 634 NL80211_FEATURE_P2P_GO_OPPPS | 635 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 636 NL80211_FEATURE_DYNAMIC_SMPS | 637 NL80211_FEATURE_STATIC_SMPS | 638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 639 640 if (fw_has_capa(&mvm->fw->ucode_capa, 641 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 642 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 643 if (fw_has_capa(&mvm->fw->ucode_capa, 644 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 645 hw->wiphy->features |= NL80211_FEATURE_QUIET; 646 647 if (fw_has_capa(&mvm->fw->ucode_capa, 648 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 649 hw->wiphy->features |= 650 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 651 652 if (fw_has_capa(&mvm->fw->ucode_capa, 653 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 654 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 655 656 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 657 IWL_FW_CMD_VER_UNKNOWN) == 3) 658 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 659 660 if (fw_has_api(&mvm->fw->ucode_capa, 661 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 662 wiphy_ext_feature_set(hw->wiphy, 663 NL80211_EXT_FEATURE_SCAN_START_TIME); 664 wiphy_ext_feature_set(hw->wiphy, 665 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 666 } 667 668 if (iwl_mvm_is_oce_supported(mvm)) { 669 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 670 671 wiphy_ext_feature_set(hw->wiphy, 672 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 673 wiphy_ext_feature_set(hw->wiphy, 674 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 675 wiphy_ext_feature_set(hw->wiphy, 676 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 677 678 /* Old firmware also supports probe deferral and suppression */ 679 if (scan_ver < 15) 680 wiphy_ext_feature_set(hw->wiphy, 681 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 682 } 683 684 hw->wiphy->iftype_ext_capab = NULL; 685 hw->wiphy->num_iftype_ext_capab = 0; 686 687 if (mvm->nvm_data->sku_cap_11ax_enable && 688 !iwlwifi_mod_params.disable_11ax) { 689 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 690 hw->wiphy->num_iftype_ext_capab = 691 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 692 693 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 694 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 695 } 696 697 if (iwl_fw_lookup_cmd_ver(mvm->fw, 698 WIDE_ID(DATA_PATH_GROUP, 699 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 700 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 701 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 702 703 if (!hw->wiphy->iftype_ext_capab) { 704 hw->wiphy->num_iftype_ext_capab = 1; 705 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 706 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 707 } else { 708 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 709 } 710 } 711 712 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 713 TOF_RANGE_REQ_CMD), 714 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 715 wiphy_ext_feature_set(hw->wiphy, 716 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 717 718 if (fw_has_capa(&mvm->fw->ucode_capa, 719 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 720 wiphy_ext_feature_set(hw->wiphy, 721 NL80211_EXT_FEATURE_SECURE_LTF); 722 } 723 724 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 725 726 ieee80211_hw_set(hw, DISALLOW_PUNCTURING_5GHZ); 727 728 #ifdef CONFIG_PM_SLEEP 729 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 730 mvm->trans->ops->d3_suspend && 731 mvm->trans->ops->d3_resume && 732 device_can_wakeup(mvm->trans->dev)) { 733 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 734 WIPHY_WOWLAN_DISCONNECT | 735 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 736 WIPHY_WOWLAN_RFKILL_RELEASE | 737 WIPHY_WOWLAN_NET_DETECT; 738 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 739 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 740 WIPHY_WOWLAN_4WAY_HANDSHAKE; 741 742 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 743 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 744 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 745 mvm->wowlan.max_nd_match_sets = 746 iwl_umac_scan_get_max_profiles(mvm->fw); 747 hw->wiphy->wowlan = &mvm->wowlan; 748 } 749 #endif 750 751 ret = iwl_mvm_leds_init(mvm); 752 if (ret) 753 return ret; 754 755 if (fw_has_capa(&mvm->fw->ucode_capa, 756 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 757 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 758 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 759 ieee80211_hw_set(hw, TDLS_WIDER_BW); 760 } 761 762 if (fw_has_capa(&mvm->fw->ucode_capa, 763 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 764 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 765 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 766 } 767 768 hw->netdev_features |= mvm->cfg->features; 769 if (!iwl_mvm_is_csum_supported(mvm)) 770 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 771 772 if (mvm->cfg->vht_mu_mimo_supported) 773 wiphy_ext_feature_set(hw->wiphy, 774 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 775 776 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 777 wiphy_ext_feature_set(hw->wiphy, 778 NL80211_EXT_FEATURE_PROTECTED_TWT); 779 780 iwl_mvm_vendor_cmds_register(mvm); 781 782 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 783 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 784 785 ret = ieee80211_register_hw(mvm->hw); 786 if (ret) { 787 iwl_mvm_leds_exit(mvm); 788 } 789 790 return ret; 791 } 792 793 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 794 struct ieee80211_sta *sta) 795 { 796 if (likely(sta)) { 797 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 798 return; 799 } else { 800 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 801 return; 802 } 803 804 ieee80211_free_txskb(mvm->hw, skb); 805 } 806 807 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 808 struct ieee80211_tx_control *control, struct sk_buff *skb) 809 { 810 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 811 struct ieee80211_sta *sta = control->sta; 812 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 813 struct ieee80211_hdr *hdr = (void *)skb->data; 814 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 815 IEEE80211_TX_CTL_TX_OFFCHAN; 816 u32 link_id = u32_get_bits(info->control.flags, 817 IEEE80211_TX_CTRL_MLO_LINK); 818 struct ieee80211_sta *tmp_sta = sta; 819 820 if (iwl_mvm_is_radio_killed(mvm)) { 821 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 822 goto drop; 823 } 824 825 if (offchannel && 826 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 827 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 828 goto drop; 829 830 /* 831 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 832 * so we treat the others as broadcast 833 */ 834 if (ieee80211_is_mgmt(hdr->frame_control)) 835 sta = NULL; 836 837 /* If there is no sta, and it's not offchannel - send through AP */ 838 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 839 !offchannel) { 840 struct iwl_mvm_vif *mvmvif = 841 iwl_mvm_vif_from_mac80211(info->control.vif); 842 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id); 843 844 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 845 /* mac80211 holds rcu read lock */ 846 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 847 if (IS_ERR_OR_NULL(sta)) 848 goto drop; 849 } 850 } 851 852 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 853 !ieee80211_is_probe_resp(hdr->frame_control)) { 854 /* translate MLD addresses to LINK addresses */ 855 struct ieee80211_link_sta *link_sta = 856 rcu_dereference(tmp_sta->link[link_id]); 857 struct ieee80211_bss_conf *link_conf = 858 rcu_dereference(info->control.vif->link_conf[link_id]); 859 struct ieee80211_mgmt *mgmt; 860 861 if (WARN_ON(!link_sta || !link_conf)) 862 goto drop; 863 864 /* if sta is NULL, the frame is a management frame */ 865 mgmt = (void *)hdr; 866 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 867 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 868 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 869 } 870 871 iwl_mvm_tx_skb(mvm, skb, sta); 872 return; 873 drop: 874 ieee80211_free_txskb(hw, skb); 875 } 876 877 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 878 { 879 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 880 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 881 struct sk_buff *skb = NULL; 882 883 /* 884 * No need for threads to be pending here, they can leave the first 885 * taker all the work. 886 * 887 * mvmtxq->tx_request logic: 888 * 889 * If 0, no one is currently TXing, set to 1 to indicate current thread 890 * will now start TX and other threads should quit. 891 * 892 * If 1, another thread is currently TXing, set to 2 to indicate to 893 * that thread that there was another request. Since that request may 894 * have raced with the check whether the queue is empty, the TXing 895 * thread should check the queue's status one more time before leaving. 896 * This check is done in order to not leave any TX hanging in the queue 897 * until the next TX invocation (which may not even happen). 898 * 899 * If 2, another thread is currently TXing, and it will already double 900 * check the queue, so do nothing. 901 */ 902 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 903 return; 904 905 rcu_read_lock(); 906 do { 907 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 908 &mvmtxq->state) && 909 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 910 &mvmtxq->state) && 911 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, 912 &mvmtxq->state) && 913 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 914 skb = ieee80211_tx_dequeue(hw, txq); 915 916 if (!skb) { 917 if (txq->sta) 918 IWL_DEBUG_TX(mvm, 919 "TXQ of sta %pM tid %d is now empty\n", 920 txq->sta->addr, 921 txq->tid); 922 break; 923 } 924 925 iwl_mvm_tx_skb(mvm, skb, txq->sta); 926 } 927 } while (atomic_dec_return(&mvmtxq->tx_request)); 928 rcu_read_unlock(); 929 } 930 931 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 932 struct ieee80211_txq *txq) 933 { 934 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 935 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 936 937 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 938 !txq->sta) { 939 iwl_mvm_mac_itxq_xmit(hw, txq); 940 return; 941 } 942 943 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 944 * to handle any packets we leave on the txq now 945 */ 946 947 spin_lock_bh(&mvm->add_stream_lock); 948 /* The list is being deleted only after the queue is fully allocated. */ 949 if (list_empty(&mvmtxq->list) && 950 /* recheck under lock */ 951 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 952 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 953 schedule_work(&mvm->add_stream_wk); 954 } 955 spin_unlock_bh(&mvm->add_stream_lock); 956 } 957 958 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 959 do { \ 960 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 961 break; \ 962 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 963 } while (0) 964 965 static void 966 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 967 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 968 enum ieee80211_ampdu_mlme_action action) 969 { 970 struct iwl_fw_dbg_trigger_tlv *trig; 971 struct iwl_fw_dbg_trigger_ba *ba_trig; 972 973 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 974 FW_DBG_TRIGGER_BA); 975 if (!trig) 976 return; 977 978 ba_trig = (void *)trig->data; 979 980 switch (action) { 981 case IEEE80211_AMPDU_TX_OPERATIONAL: { 982 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 983 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 984 985 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 986 "TX AGG START: MAC %pM tid %d ssn %d\n", 987 sta->addr, tid, tid_data->ssn); 988 break; 989 } 990 case IEEE80211_AMPDU_TX_STOP_CONT: 991 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 992 "TX AGG STOP: MAC %pM tid %d\n", 993 sta->addr, tid); 994 break; 995 case IEEE80211_AMPDU_RX_START: 996 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 997 "RX AGG START: MAC %pM tid %d ssn %d\n", 998 sta->addr, tid, rx_ba_ssn); 999 break; 1000 case IEEE80211_AMPDU_RX_STOP: 1001 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 1002 "RX AGG STOP: MAC %pM tid %d\n", 1003 sta->addr, tid); 1004 break; 1005 default: 1006 break; 1007 } 1008 } 1009 1010 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1011 struct ieee80211_vif *vif, 1012 struct ieee80211_ampdu_params *params) 1013 { 1014 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1015 int ret; 1016 struct ieee80211_sta *sta = params->sta; 1017 enum ieee80211_ampdu_mlme_action action = params->action; 1018 u16 tid = params->tid; 1019 u16 *ssn = ¶ms->ssn; 1020 u16 buf_size = params->buf_size; 1021 bool amsdu = params->amsdu; 1022 u16 timeout = params->timeout; 1023 1024 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1025 sta->addr, tid, action); 1026 1027 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1028 return -EACCES; 1029 1030 mutex_lock(&mvm->mutex); 1031 1032 switch (action) { 1033 case IEEE80211_AMPDU_RX_START: 1034 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1035 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1036 struct iwl_mvm_vif *mvmvif; 1037 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1038 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1039 1040 mdata->opened_rx_ba_sessions = true; 1041 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1042 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1043 } 1044 if (!iwl_enable_rx_ampdu()) { 1045 ret = -EINVAL; 1046 break; 1047 } 1048 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1049 timeout); 1050 break; 1051 case IEEE80211_AMPDU_RX_STOP: 1052 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1053 timeout); 1054 break; 1055 case IEEE80211_AMPDU_TX_START: 1056 if (!iwl_enable_tx_ampdu()) { 1057 ret = -EINVAL; 1058 break; 1059 } 1060 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1061 break; 1062 case IEEE80211_AMPDU_TX_STOP_CONT: 1063 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1064 break; 1065 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1066 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1067 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1068 break; 1069 case IEEE80211_AMPDU_TX_OPERATIONAL: 1070 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1071 buf_size, amsdu); 1072 break; 1073 default: 1074 WARN_ON_ONCE(1); 1075 ret = -EINVAL; 1076 break; 1077 } 1078 1079 if (!ret) { 1080 u16 rx_ba_ssn = 0; 1081 1082 if (action == IEEE80211_AMPDU_RX_START) 1083 rx_ba_ssn = *ssn; 1084 1085 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1086 rx_ba_ssn, action); 1087 } 1088 mutex_unlock(&mvm->mutex); 1089 1090 return ret; 1091 } 1092 1093 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1094 struct ieee80211_vif *vif) 1095 { 1096 struct iwl_mvm *mvm = data; 1097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1098 struct iwl_probe_resp_data *probe_data; 1099 unsigned int link_id; 1100 1101 mvmvif->uploaded = false; 1102 1103 spin_lock_bh(&mvm->time_event_lock); 1104 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1105 spin_unlock_bh(&mvm->time_event_lock); 1106 1107 mvmvif->bf_enabled = false; 1108 mvmvif->ba_enabled = false; 1109 mvmvif->ap_sta = NULL; 1110 1111 mvmvif->esr_active = false; 1112 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE; 1113 1114 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1115 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1116 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1117 mvmvif->link[link_id]->phy_ctxt = NULL; 1118 mvmvif->link[link_id]->active = 0; 1119 mvmvif->link[link_id]->igtk = NULL; 1120 memset(&mvmvif->link[link_id]->bf_data, 0, 1121 sizeof(mvmvif->link[link_id]->bf_data)); 1122 } 1123 1124 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1125 lockdep_is_held(&mvm->mutex)); 1126 if (probe_data) 1127 kfree_rcu(probe_data, rcu_head); 1128 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1129 } 1130 1131 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1132 { 1133 iwl_mvm_stop_device(mvm); 1134 1135 mvm->cur_aid = 0; 1136 1137 mvm->scan_status = 0; 1138 mvm->ps_disabled = false; 1139 mvm->rfkill_safe_init_done = false; 1140 1141 /* just in case one was running */ 1142 iwl_mvm_cleanup_roc_te(mvm); 1143 ieee80211_remain_on_channel_expired(mvm->hw); 1144 1145 iwl_mvm_ftm_restart(mvm); 1146 1147 /* 1148 * cleanup all interfaces, even inactive ones, as some might have 1149 * gone down during the HW restart 1150 */ 1151 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1152 1153 mvm->p2p_device_vif = NULL; 1154 1155 iwl_mvm_reset_phy_ctxts(mvm); 1156 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1157 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1158 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1159 1160 ieee80211_wake_queues(mvm->hw); 1161 1162 mvm->rx_ba_sessions = 0; 1163 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1164 mvm->monitor_on = false; 1165 #ifdef CONFIG_IWLWIFI_DEBUGFS 1166 mvm->beacon_inject_active = false; 1167 #endif 1168 1169 /* keep statistics ticking */ 1170 iwl_mvm_accu_radio_stats(mvm); 1171 } 1172 1173 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1174 { 1175 int ret; 1176 1177 lockdep_assert_held(&mvm->mutex); 1178 1179 ret = iwl_mvm_mei_get_ownership(mvm); 1180 if (ret) 1181 return ret; 1182 1183 if (mvm->mei_nvm_data) { 1184 /* We got the NIC, we can now free the MEI NVM data */ 1185 kfree(mvm->mei_nvm_data); 1186 mvm->mei_nvm_data = NULL; 1187 1188 /* 1189 * We can't free the nvm_data we allocated based on the SAP 1190 * data because we registered to cfg80211 with the channels 1191 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1192 * just in order to be able free it later. 1193 * NULLify nvm_data so that we will read the NVM from the 1194 * firmware this time. 1195 */ 1196 mvm->temp_nvm_data = mvm->nvm_data; 1197 mvm->nvm_data = NULL; 1198 } 1199 1200 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1201 /* 1202 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1203 * so later code will - from now on - see that we're doing it. 1204 */ 1205 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1206 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1207 /* Clean up some internal and mac80211 state on restart */ 1208 iwl_mvm_restart_cleanup(mvm); 1209 } 1210 ret = iwl_mvm_up(mvm); 1211 1212 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1213 NULL); 1214 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1215 NULL); 1216 1217 mvm->last_reset_or_resume_time_jiffies = jiffies; 1218 1219 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1220 /* Something went wrong - we need to finish some cleanup 1221 * that normally iwl_mvm_mac_restart_complete() below 1222 * would do. 1223 */ 1224 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1225 } 1226 1227 return ret; 1228 } 1229 1230 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1231 { 1232 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1233 int ret; 1234 1235 mutex_lock(&mvm->mutex); 1236 1237 /* we are starting the mac not in error flow, and restart is enabled */ 1238 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1239 iwlwifi_mod_params.fw_restart) { 1240 /* 1241 * This will prevent mac80211 recovery flows to trigger during 1242 * init failures 1243 */ 1244 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1245 } 1246 1247 ret = __iwl_mvm_mac_start(mvm); 1248 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1249 1250 mutex_unlock(&mvm->mutex); 1251 1252 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1253 1254 return ret; 1255 } 1256 1257 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1258 { 1259 int ret; 1260 1261 mutex_lock(&mvm->mutex); 1262 1263 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1264 1265 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1266 if (ret) 1267 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1268 ret); 1269 1270 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1271 1272 /* 1273 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1274 * of packets the FW sent out, so we must reconnect. 1275 */ 1276 iwl_mvm_teardown_tdls_peers(mvm); 1277 1278 mutex_unlock(&mvm->mutex); 1279 } 1280 1281 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1282 enum ieee80211_reconfig_type reconfig_type) 1283 { 1284 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1285 1286 switch (reconfig_type) { 1287 case IEEE80211_RECONFIG_TYPE_RESTART: 1288 iwl_mvm_restart_complete(mvm); 1289 break; 1290 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1291 break; 1292 } 1293 } 1294 1295 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1296 { 1297 lockdep_assert_held(&mvm->mutex); 1298 1299 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1300 1301 /* firmware counters are obviously reset now, but we shouldn't 1302 * partially track so also clear the fw_reset_accu counters. 1303 */ 1304 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1305 1306 /* async_handlers_wk is now blocked */ 1307 1308 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1309 iwl_mvm_rm_aux_sta(mvm); 1310 1311 iwl_mvm_stop_device(mvm); 1312 1313 iwl_mvm_async_handlers_purge(mvm); 1314 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1315 1316 /* 1317 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1318 * hw (as restart_complete() won't be called in this case) and mac80211 1319 * won't execute the restart. 1320 * But make sure to cleanup interfaces that have gone down before/during 1321 * HW restart was requested. 1322 */ 1323 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1324 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1325 &mvm->status)) 1326 ieee80211_iterate_interfaces(mvm->hw, 0, 1327 iwl_mvm_cleanup_iterator, mvm); 1328 1329 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1330 * make sure there's nothing left there and warn if any is found. 1331 */ 1332 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1333 int i; 1334 1335 for (i = 0; i < mvm->max_scans; i++) { 1336 if (WARN_ONCE(mvm->scan_uid_status[i], 1337 "UMAC scan UID %d status was not cleaned\n", 1338 i)) 1339 mvm->scan_uid_status[i] = 0; 1340 } 1341 } 1342 } 1343 1344 void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1345 { 1346 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1347 1348 /* Stop internal MLO scan, if running */ 1349 mutex_lock(&mvm->mutex); 1350 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1351 mutex_unlock(&mvm->mutex); 1352 1353 flush_work(&mvm->async_handlers_wk); 1354 flush_work(&mvm->add_stream_wk); 1355 1356 /* 1357 * Lock and clear the firmware running bit here already, so that 1358 * new commands coming in elsewhere, e.g. from debugfs, will not 1359 * be able to proceed. This is important here because one of those 1360 * debugfs files causes the firmware dump to be triggered, and if we 1361 * don't stop debugfs accesses before canceling that it could be 1362 * retriggered after we flush it but before we've cleared the bit. 1363 */ 1364 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1365 1366 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1367 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1368 1369 /* 1370 * The work item could be running or queued if the 1371 * ROC time event stops just as we get here. 1372 */ 1373 flush_work(&mvm->roc_done_wk); 1374 1375 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1376 1377 mutex_lock(&mvm->mutex); 1378 __iwl_mvm_mac_stop(mvm); 1379 mutex_unlock(&mvm->mutex); 1380 1381 /* 1382 * The worker might have been waiting for the mutex, let it run and 1383 * discover that its list is now empty. 1384 */ 1385 cancel_work_sync(&mvm->async_handlers_wk); 1386 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1387 } 1388 1389 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1390 { 1391 u16 i; 1392 1393 lockdep_assert_held(&mvm->mutex); 1394 1395 for (i = 0; i < NUM_PHY_CTX; i++) 1396 if (!mvm->phy_ctxts[i].ref) 1397 return &mvm->phy_ctxts[i]; 1398 1399 IWL_ERR(mvm, "No available PHY context\n"); 1400 return NULL; 1401 } 1402 1403 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1404 s16 tx_power) 1405 { 1406 u32 cmd_id = REDUCE_TX_POWER_CMD; 1407 int len; 1408 struct iwl_dev_tx_power_cmd cmd = { 1409 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1410 .common.mac_context_id = 1411 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1412 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1413 }; 1414 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1415 IWL_FW_CMD_VER_UNKNOWN); 1416 1417 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1418 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1419 1420 if (cmd_ver == 8) 1421 len = sizeof(cmd.v8); 1422 else if (cmd_ver == 7) 1423 len = sizeof(cmd.v7); 1424 else if (cmd_ver == 6) 1425 len = sizeof(cmd.v6); 1426 else if (fw_has_api(&mvm->fw->ucode_capa, 1427 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1428 len = sizeof(cmd.v5); 1429 else if (fw_has_capa(&mvm->fw->ucode_capa, 1430 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1431 len = sizeof(cmd.v4); 1432 else 1433 len = sizeof(cmd.v3); 1434 1435 /* all structs have the same common part, add it */ 1436 len += sizeof(cmd.common); 1437 1438 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1439 } 1440 1441 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1442 { 1443 struct ieee80211_hw *hw = data; 1444 int i; 1445 1446 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1447 struct iwl_mvm_txq *mvmtxq = 1448 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1449 1450 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1451 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1452 } 1453 } 1454 1455 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1456 struct ieee80211_vif *vif, 1457 struct ieee80211_bss_conf *link_conf) 1458 { 1459 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1461 int ret; 1462 1463 mutex_lock(&mvm->mutex); 1464 1465 if (vif->type == NL80211_IFTYPE_STATION) { 1466 struct iwl_mvm_sta *mvmsta; 1467 unsigned int link_id = link_conf->link_id; 1468 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1469 1470 mvmvif->csa_bcn_pending = false; 1471 mvmvif->csa_blocks_tx = false; 1472 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1473 1474 if (WARN_ON(!mvmsta)) { 1475 ret = -EIO; 1476 goto out_unlock; 1477 } 1478 1479 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1480 if (mvm->mld_api_is_used) 1481 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1482 else 1483 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1484 1485 if (!fw_has_capa(&mvm->fw->ucode_capa, 1486 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1487 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1488 if (ret) 1489 goto out_unlock; 1490 1491 iwl_mvm_stop_session_protection(mvm, vif); 1492 } 1493 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1494 struct iwl_mvm_txq *mvmtxq = 1495 iwl_mvm_txq_from_mac80211(vif->txq); 1496 1497 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1498 1499 local_bh_disable(); 1500 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1501 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1502 local_bh_enable(); 1503 1504 mvmvif->csa_blocks_tx = false; 1505 } 1506 1507 mvmvif->ps_disabled = false; 1508 1509 ret = iwl_mvm_power_update_ps(mvm); 1510 1511 out_unlock: 1512 if (mvmvif->csa_failed) 1513 ret = -EIO; 1514 mutex_unlock(&mvm->mutex); 1515 1516 return ret; 1517 } 1518 1519 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1520 struct ieee80211_vif *vif, 1521 struct ieee80211_bss_conf *link_conf) 1522 { 1523 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1524 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1525 struct iwl_chan_switch_te_cmd cmd = { 1526 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1527 mvmvif->color)), 1528 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1529 }; 1530 1531 /* 1532 * In the new flow since FW is in charge of the timing, 1533 * if driver has canceled the channel switch he will receive the 1534 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1535 */ 1536 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1537 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1538 return; 1539 1540 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1541 1542 mutex_lock(&mvm->mutex); 1543 if (!fw_has_capa(&mvm->fw->ucode_capa, 1544 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1545 iwl_mvm_remove_csa_period(mvm, vif); 1546 else 1547 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1548 WIDE_ID(MAC_CONF_GROUP, 1549 CHANNEL_SWITCH_TIME_EVENT_CMD), 1550 0, sizeof(cmd), &cmd)); 1551 mvmvif->csa_failed = true; 1552 mutex_unlock(&mvm->mutex); 1553 1554 /* If we're here, we can't support MLD */ 1555 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1556 } 1557 1558 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1559 { 1560 struct iwl_mvm_vif *mvmvif; 1561 struct ieee80211_vif *vif; 1562 1563 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1564 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1565 1566 /* Trigger disconnect (should clear the CSA state) */ 1567 ieee80211_chswitch_done(vif, false, 0); 1568 } 1569 1570 static u8 1571 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1572 { 1573 int data_start; 1574 int control_start; 1575 int bw; 1576 1577 if (chandef->width == NL80211_CHAN_WIDTH_320) 1578 bw = 320; 1579 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1580 bw = 160; 1581 else 1582 return 0; 1583 1584 /* data is bw wide so the start is half the width */ 1585 data_start = chandef->center_freq1 - bw / 2; 1586 /* control is 20Mhz width */ 1587 control_start = chandef->chan->center_freq - 10; 1588 1589 return (control_start - data_start) / 80; 1590 } 1591 1592 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1593 struct ieee80211_vif *vif) 1594 { 1595 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1596 int ret; 1597 1598 lockdep_assert_held(&mvm->mutex); 1599 1600 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1601 if (ret) { 1602 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1603 return ret; 1604 } 1605 1606 /* Only queue for this station is the mcast queue, 1607 * which shouldn't be in TFD mask anyway 1608 */ 1609 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1610 vif->type, 1611 IWL_STA_MULTICAST); 1612 } 1613 1614 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1615 struct ieee80211_vif *vif) 1616 { 1617 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1618 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1619 int ret; 1620 int i; 1621 1622 mutex_lock(&mvm->mutex); 1623 1624 mvmvif->mvm = mvm; 1625 1626 /* the first link always points to the default one */ 1627 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1628 mvmvif->deflink.active = 0; 1629 mvmvif->link[0] = &mvmvif->deflink; 1630 1631 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1632 if (ret) 1633 goto out; 1634 1635 /* 1636 * Not much to do here. The stack will not allow interface 1637 * types or combinations that we didn't advertise, so we 1638 * don't really have to check the types. 1639 */ 1640 1641 /* make sure that beacon statistics don't go backwards with FW reset */ 1642 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1643 for_each_mvm_vif_valid_link(mvmvif, i) 1644 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1645 mvmvif->link[i]->beacon_stats.num_beacons; 1646 1647 /* Allocate resources for the MAC context, and add it to the fw */ 1648 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1649 if (ret) 1650 goto out; 1651 1652 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1653 1654 /* Currently not much to do for NAN */ 1655 if (vif->type == NL80211_IFTYPE_NAN) { 1656 ret = 0; 1657 goto out; 1658 } 1659 1660 /* 1661 * The AP binding flow can be done only after the beacon 1662 * template is configured (which happens only in the mac80211 1663 * start_ap() flow), and adding the broadcast station can happen 1664 * only after the binding. 1665 * In addition, since modifying the MAC before adding a bcast 1666 * station is not allowed by the FW, delay the adding of MAC context to 1667 * the point where we can also add the bcast station. 1668 * In short: there's not much we can do at this point, other than 1669 * allocating resources :) 1670 */ 1671 if (vif->type == NL80211_IFTYPE_AP || 1672 vif->type == NL80211_IFTYPE_ADHOC) { 1673 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1674 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1675 ret = 0; 1676 goto out; 1677 } 1678 1679 mvmvif->features |= hw->netdev_features; 1680 1681 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1682 if (ret) 1683 goto out_unlock; 1684 1685 ret = iwl_mvm_power_update_mac(mvm); 1686 if (ret) 1687 goto out_remove_mac; 1688 1689 /* beacon filtering */ 1690 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1691 if (ret) 1692 goto out_remove_mac; 1693 1694 if (!mvm->bf_allowed_vif && 1695 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1696 mvm->bf_allowed_vif = mvmvif; 1697 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1698 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1699 } 1700 1701 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1702 mvm->p2p_device_vif = vif; 1703 1704 iwl_mvm_tcm_add_vif(mvm, vif); 1705 INIT_DELAYED_WORK(&mvmvif->csa_work, 1706 iwl_mvm_channel_switch_disconnect_wk); 1707 1708 if (vif->type == NL80211_IFTYPE_MONITOR) { 1709 mvm->monitor_on = true; 1710 mvm->monitor_p80 = 1711 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1712 } 1713 1714 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1715 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1716 1717 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1718 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1719 !mvm->csme_vif && mvm->mei_registered) { 1720 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1721 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1722 mvm->csme_vif = vif; 1723 } 1724 1725 out: 1726 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1727 vif->type == NL80211_IFTYPE_ADHOC)) 1728 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1729 1730 goto out_unlock; 1731 1732 out_remove_mac: 1733 mvmvif->deflink.phy_ctxt = NULL; 1734 iwl_mvm_mac_ctxt_remove(mvm, vif); 1735 out_unlock: 1736 mutex_unlock(&mvm->mutex); 1737 1738 return ret; 1739 } 1740 1741 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1742 struct ieee80211_vif *vif) 1743 { 1744 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1745 /* 1746 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1747 * We assume here that all the packets sent to the OFFCHANNEL 1748 * queue are sent in ROC session. 1749 */ 1750 flush_work(&mvm->roc_done_wk); 1751 } 1752 } 1753 1754 /* This function is doing the common part of removing the interface for 1755 * both - MLD and non-MLD modes. Returns true if removing the interface 1756 * is done 1757 */ 1758 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw, 1759 struct ieee80211_vif *vif) 1760 { 1761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1762 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1763 struct iwl_probe_resp_data *probe_data; 1764 1765 iwl_mvm_prepare_mac_removal(mvm, vif); 1766 1767 if (!(vif->type == NL80211_IFTYPE_AP || 1768 vif->type == NL80211_IFTYPE_ADHOC)) 1769 iwl_mvm_tcm_rm_vif(mvm, vif); 1770 1771 mutex_lock(&mvm->mutex); 1772 1773 if (vif == mvm->csme_vif) { 1774 iwl_mei_set_netdev(NULL); 1775 mvm->csme_vif = NULL; 1776 } 1777 1778 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1779 lockdep_is_held(&mvm->mutex)); 1780 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1781 if (probe_data) 1782 kfree_rcu(probe_data, rcu_head); 1783 1784 if (mvm->bf_allowed_vif == mvmvif) { 1785 mvm->bf_allowed_vif = NULL; 1786 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1787 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1788 } 1789 1790 if (vif->bss_conf.ftm_responder) 1791 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1792 1793 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1794 1795 /* 1796 * For AP/GO interface, the tear down of the resources allocated to the 1797 * interface is be handled as part of the stop_ap flow. 1798 */ 1799 if (vif->type == NL80211_IFTYPE_AP || 1800 vif->type == NL80211_IFTYPE_ADHOC) { 1801 #ifdef CONFIG_NL80211_TESTMODE 1802 if (vif == mvm->noa_vif) { 1803 mvm->noa_vif = NULL; 1804 mvm->noa_duration = 0; 1805 } 1806 #endif 1807 return true; 1808 } 1809 1810 iwl_mvm_power_update_mac(mvm); 1811 return false; 1812 } 1813 1814 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1815 struct ieee80211_vif *vif) 1816 { 1817 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1818 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1819 1820 if (iwl_mvm_mac_remove_interface_common(hw, vif)) 1821 goto out; 1822 1823 /* Before the interface removal, mac80211 would cancel the ROC, and the 1824 * ROC worker would be scheduled if needed. The worker would be flushed 1825 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1826 * binding etc. so nothing needs to be done here. 1827 */ 1828 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1829 if (mvmvif->deflink.phy_ctxt) { 1830 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1831 mvmvif->deflink.phy_ctxt = NULL; 1832 } 1833 mvm->p2p_device_vif = NULL; 1834 } 1835 1836 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 1837 iwl_mvm_mac_ctxt_remove(mvm, vif); 1838 1839 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1840 1841 if (vif->type == NL80211_IFTYPE_MONITOR) 1842 mvm->monitor_on = false; 1843 1844 out: 1845 if (vif->type == NL80211_IFTYPE_AP || 1846 vif->type == NL80211_IFTYPE_ADHOC) { 1847 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 1848 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1849 } 1850 1851 mutex_unlock(&mvm->mutex); 1852 } 1853 1854 struct iwl_mvm_mc_iter_data { 1855 struct iwl_mvm *mvm; 1856 int port_id; 1857 }; 1858 1859 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1860 struct ieee80211_vif *vif) 1861 { 1862 struct iwl_mvm_mc_iter_data *data = _data; 1863 struct iwl_mvm *mvm = data->mvm; 1864 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1865 struct iwl_host_cmd hcmd = { 1866 .id = MCAST_FILTER_CMD, 1867 .flags = CMD_ASYNC, 1868 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1869 }; 1870 int ret, len; 1871 1872 /* if we don't have free ports, mcast frames will be dropped */ 1873 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1874 return; 1875 1876 if (vif->type != NL80211_IFTYPE_STATION || 1877 !vif->cfg.assoc) 1878 return; 1879 1880 cmd->port_id = data->port_id++; 1881 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1882 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1883 1884 hcmd.len[0] = len; 1885 hcmd.data[0] = cmd; 1886 1887 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1888 if (ret) 1889 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1890 } 1891 1892 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1893 { 1894 struct iwl_mvm_mc_iter_data iter_data = { 1895 .mvm = mvm, 1896 }; 1897 int ret; 1898 1899 lockdep_assert_held(&mvm->mutex); 1900 1901 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1902 return; 1903 1904 ieee80211_iterate_active_interfaces_atomic( 1905 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1906 iwl_mvm_mc_iface_iterator, &iter_data); 1907 1908 /* 1909 * Send a (synchronous) ech command so that we wait for the 1910 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1911 * the interface iterator. Otherwise, we might get here over 1912 * and over again (by userspace just sending a lot of these) 1913 * and the CPU can send them faster than the firmware can 1914 * process them. 1915 * Note that the CPU is still faster - but with this we'll 1916 * actually send fewer commands overall because the CPU will 1917 * not schedule the work in mac80211 as frequently if it's 1918 * still running when rescheduled (possibly multiple times). 1919 */ 1920 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1921 if (ret) 1922 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1923 } 1924 1925 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1926 struct netdev_hw_addr_list *mc_list) 1927 { 1928 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1929 struct iwl_mcast_filter_cmd *cmd; 1930 struct netdev_hw_addr *addr; 1931 int addr_count; 1932 bool pass_all; 1933 int len; 1934 1935 addr_count = netdev_hw_addr_list_count(mc_list); 1936 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1937 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1938 if (pass_all) 1939 addr_count = 0; 1940 1941 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1942 cmd = kzalloc(len, GFP_ATOMIC); 1943 if (!cmd) 1944 return 0; 1945 1946 if (pass_all) { 1947 cmd->pass_all = 1; 1948 return (u64)(unsigned long)cmd; 1949 } 1950 1951 netdev_hw_addr_list_for_each(addr, mc_list) { 1952 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1953 cmd->count, addr->addr); 1954 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1955 addr->addr, ETH_ALEN); 1956 cmd->count++; 1957 } 1958 1959 return (u64)(unsigned long)cmd; 1960 } 1961 1962 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1963 unsigned int changed_flags, 1964 unsigned int *total_flags, u64 multicast) 1965 { 1966 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1967 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1968 1969 mutex_lock(&mvm->mutex); 1970 1971 /* replace previous configuration */ 1972 kfree(mvm->mcast_filter_cmd); 1973 mvm->mcast_filter_cmd = cmd; 1974 1975 if (!cmd) 1976 goto out; 1977 1978 if (changed_flags & FIF_ALLMULTI) 1979 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1980 1981 if (cmd->pass_all) 1982 cmd->count = 0; 1983 1984 iwl_mvm_recalc_multicast(mvm); 1985 out: 1986 mutex_unlock(&mvm->mutex); 1987 *total_flags = 0; 1988 } 1989 1990 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1991 struct ieee80211_vif *vif, 1992 unsigned int filter_flags, 1993 unsigned int changed_flags) 1994 { 1995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1996 1997 /* We support only filter for probe requests */ 1998 if (!(changed_flags & FIF_PROBE_REQ)) 1999 return; 2000 2001 /* Supported only for p2p client interfaces */ 2002 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2003 !vif->p2p) 2004 return; 2005 2006 mutex_lock(&mvm->mutex); 2007 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2008 mutex_unlock(&mvm->mutex); 2009 } 2010 2011 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2012 { 2013 struct iwl_mu_group_mgmt_cmd cmd = {}; 2014 2015 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2016 WLAN_MEMBERSHIP_LEN); 2017 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2018 WLAN_USER_POSITION_LEN); 2019 2020 return iwl_mvm_send_cmd_pdu(mvm, 2021 WIDE_ID(DATA_PATH_GROUP, 2022 UPDATE_MU_GROUPS_CMD), 2023 0, sizeof(cmd), &cmd); 2024 } 2025 2026 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2027 struct ieee80211_vif *vif) 2028 { 2029 if (vif->bss_conf.mu_mimo_owner) { 2030 struct iwl_mu_group_mgmt_notif *notif = _data; 2031 2032 /* 2033 * MU-MIMO Group Id action frame is little endian. We treat 2034 * the data received from firmware as if it came from the 2035 * action frame, so no conversion is needed. 2036 */ 2037 ieee80211_update_mu_groups(vif, 0, 2038 (u8 *)¬if->membership_status, 2039 (u8 *)¬if->user_position); 2040 } 2041 } 2042 2043 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2044 struct iwl_rx_cmd_buffer *rxb) 2045 { 2046 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2047 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2048 2049 ieee80211_iterate_active_interfaces_atomic( 2050 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2051 iwl_mvm_mu_mimo_iface_iterator, notif); 2052 } 2053 2054 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2055 { 2056 u8 byte_num = ppe_pos_bit / 8; 2057 u8 bit_num = ppe_pos_bit % 8; 2058 u8 residue_bits; 2059 u8 res; 2060 2061 if (bit_num <= 5) 2062 return (ppe[byte_num] >> bit_num) & 2063 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2064 2065 /* 2066 * If bit_num > 5, we have to combine bits with next byte. 2067 * Calculate how many bits we need to take from current byte (called 2068 * here "residue_bits"), and add them to bits from next byte. 2069 */ 2070 2071 residue_bits = 8 - bit_num; 2072 2073 res = (ppe[byte_num + 1] & 2074 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2075 residue_bits; 2076 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2077 2078 return res; 2079 } 2080 2081 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2082 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2083 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2084 bool inheritance) 2085 { 2086 int i; 2087 2088 /* 2089 * FW currently supports only nss == MAX_HE_SUPP_NSS 2090 * 2091 * If nss > MAX: we can ignore values we don't support 2092 * If nss < MAX: we can set zeros in other streams 2093 */ 2094 if (nss > MAX_HE_SUPP_NSS) { 2095 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2096 MAX_HE_SUPP_NSS); 2097 nss = MAX_HE_SUPP_NSS; 2098 } 2099 2100 for (i = 0; i < nss; i++) { 2101 u8 ru_index_tmp = ru_index_bitmap << 1; 2102 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2103 u8 bw; 2104 2105 for (bw = 0; 2106 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2107 bw++) { 2108 ru_index_tmp >>= 1; 2109 2110 /* 2111 * According to the 11be spec, if for a specific BW the PPE Thresholds 2112 * isn't present - it should inherit the thresholds from the last 2113 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2114 * this inheritance - continue in this case 2115 */ 2116 if (!(ru_index_tmp & 1)) { 2117 if (inheritance) 2118 goto set_thresholds; 2119 else 2120 continue; 2121 } 2122 2123 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2124 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2125 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2126 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2127 2128 set_thresholds: 2129 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2130 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2131 } 2132 } 2133 } 2134 2135 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2136 struct ieee80211_link_sta *link_sta, 2137 struct iwl_he_pkt_ext_v2 *pkt_ext, 2138 bool inheritance) 2139 { 2140 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2141 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2142 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2143 u8 ru_index_bitmap = 2144 u8_get_bits(*ppe, 2145 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2146 /* Starting after PPE header */ 2147 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2148 2149 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2150 inheritance); 2151 } 2152 2153 static int 2154 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2155 u8 nominal_padding) 2156 { 2157 int low_th = -1; 2158 int high_th = -1; 2159 int i; 2160 2161 /* all the macros are the same for EHT and HE */ 2162 switch (nominal_padding) { 2163 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2164 low_th = IWL_HE_PKT_EXT_NONE; 2165 high_th = IWL_HE_PKT_EXT_NONE; 2166 break; 2167 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2168 low_th = IWL_HE_PKT_EXT_BPSK; 2169 high_th = IWL_HE_PKT_EXT_NONE; 2170 break; 2171 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2172 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2173 low_th = IWL_HE_PKT_EXT_NONE; 2174 high_th = IWL_HE_PKT_EXT_BPSK; 2175 break; 2176 } 2177 2178 if (low_th < 0 || high_th < 0) 2179 return -EINVAL; 2180 2181 /* Set the PPE thresholds accordingly */ 2182 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2183 u8 bw; 2184 2185 for (bw = 0; 2186 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2187 bw++) { 2188 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2189 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2190 } 2191 } 2192 2193 return 0; 2194 } 2195 2196 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2197 u8 nominal_padding) 2198 { 2199 int i; 2200 2201 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2202 u8 bw; 2203 2204 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2205 bw++) { 2206 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2207 2208 if (nominal_padding > 2209 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2210 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2211 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2212 else if (nominal_padding == 2213 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2214 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2215 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2216 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2217 } 2218 } 2219 } 2220 2221 /* Set the pkt_ext field according to PPE Thresholds element */ 2222 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2223 struct ieee80211_link_sta *link_sta, 2224 struct iwl_he_pkt_ext_v2 *pkt_ext) 2225 { 2226 u8 nominal_padding; 2227 int i, ret = 0; 2228 2229 if (WARN_ON(!link_sta)) 2230 return -EINVAL; 2231 2232 /* Initialize the PPE thresholds to "None" (7), as described in Table 2233 * 9-262ac of 80211.ax/D3.0. 2234 */ 2235 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2236 sizeof(struct iwl_he_pkt_ext_v2)); 2237 2238 if (link_sta->eht_cap.has_eht) { 2239 nominal_padding = 2240 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2241 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2242 2243 /* If PPE Thresholds exists, parse them into a FW-familiar 2244 * format. 2245 */ 2246 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2247 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2248 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2249 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2250 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2251 u8 ru_index_bitmap = 2252 u16_get_bits(*ppe, 2253 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2254 /* Starting after PPE header */ 2255 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2256 2257 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2258 ppe, ppe_pos_bit, true); 2259 /* EHT PPE Thresholds doesn't exist - set the API according to 2260 * HE PPE Tresholds 2261 */ 2262 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2263 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2264 /* Even though HE Capabilities IE doesn't contain PPE 2265 * Thresholds for BW 320Mhz, thresholds for this BW will 2266 * be filled in with the same values as 160Mhz, due to 2267 * the inheritance, as required. 2268 */ 2269 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2270 true); 2271 2272 /* According to the requirements, for MCSs 12-13 the 2273 * maximum value between HE PPE Threshold and Common 2274 * Nominal Packet Padding needs to be taken 2275 */ 2276 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2277 2278 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2279 * take the Thresholds from Common Nominal Packet Padding field 2280 */ 2281 } else { 2282 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2283 nominal_padding); 2284 } 2285 } else if (link_sta->he_cap.has_he) { 2286 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2287 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2288 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2289 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2290 false); 2291 /* PPE Thresholds doesn't exist - set the API PPE values 2292 * according to Common Nominal Packet Padding field. 2293 */ 2294 } else { 2295 nominal_padding = 2296 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2297 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2298 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2299 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2300 nominal_padding); 2301 } 2302 } 2303 2304 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2305 int bw; 2306 2307 for (bw = 0; 2308 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2309 bw++) { 2310 u8 *qam_th = 2311 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2312 2313 IWL_DEBUG_HT(mvm, 2314 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2315 i, bw, qam_th[0], qam_th[1]); 2316 } 2317 } 2318 return ret; 2319 } 2320 2321 /* 2322 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2323 * is enabled or not 2324 */ 2325 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2326 const struct iwl_mvm_vif_link_info *link_info, 2327 struct iwl_he_backoff_conf *trig_based_txf) 2328 { 2329 int i; 2330 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2331 bool mu_edca_enabled = true; 2332 2333 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2334 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2335 &link_info->queue_params[i].mu_edca_param_rec; 2336 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2337 2338 if (!link_info->queue_params[i].mu_edca) { 2339 mu_edca_enabled = false; 2340 break; 2341 } 2342 2343 trig_based_txf[ac].cwmin = 2344 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2345 trig_based_txf[ac].cwmax = 2346 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2347 trig_based_txf[ac].aifsn = 2348 cpu_to_le16(mu_edca->aifsn & 0xf); 2349 trig_based_txf[ac].mu_time = 2350 cpu_to_le16(mu_edca->mu_edca_timer); 2351 } 2352 2353 return mu_edca_enabled; 2354 } 2355 2356 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2357 { 2358 const struct ieee80211_supported_band *sband; 2359 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2360 2361 /* This capability is the same for all bands, 2362 * so take it from one of them. 2363 */ 2364 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2365 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2366 2367 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2368 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2369 } 2370 2371 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2372 struct ieee80211_link_sta *link_sta) 2373 { 2374 u8 *mac_cap_info = 2375 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2376 __le32 htc_flags = 0; 2377 2378 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2379 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2380 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2381 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2382 u8 link_adap = 2383 ((mac_cap_info[2] & 2384 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2385 (mac_cap_info[1] & 2386 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2387 2388 if (link_adap == 2) 2389 htc_flags |= 2390 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2391 else if (link_adap == 3) 2392 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2393 } 2394 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2395 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2396 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2397 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2398 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2399 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2400 2401 return htc_flags; 2402 } 2403 2404 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2405 struct ieee80211_vif *vif, u8 sta_id) 2406 { 2407 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2408 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2409 .sta_id = sta_id, 2410 .tid_limit = IWL_MAX_TID_COUNT, 2411 .bss_color = vif->bss_conf.he_bss_color.color, 2412 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2413 .frame_time_rts_th = 2414 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2415 }; 2416 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2417 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2418 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2419 int size; 2420 struct ieee80211_sta *sta; 2421 u32 flags; 2422 int i; 2423 void *cmd; 2424 2425 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2426 ver = 1; 2427 2428 switch (ver) { 2429 case 1: 2430 /* same layout as v2 except some data at the end */ 2431 cmd = &sta_ctxt_cmd_v2; 2432 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2433 break; 2434 case 2: 2435 cmd = &sta_ctxt_cmd_v2; 2436 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2437 break; 2438 case 3: 2439 cmd = &sta_ctxt_cmd; 2440 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2441 break; 2442 default: 2443 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2444 return; 2445 } 2446 2447 rcu_read_lock(); 2448 2449 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2450 if (IS_ERR_OR_NULL(sta)) { 2451 rcu_read_unlock(); 2452 WARN(1, "Can't find STA to configure HE\n"); 2453 return; 2454 } 2455 2456 if (!sta->deflink.he_cap.has_he) { 2457 rcu_read_unlock(); 2458 return; 2459 } 2460 2461 flags = 0; 2462 2463 /* Block 26-tone RU OFDMA transmissions */ 2464 if (mvmvif->deflink.he_ru_2mhz_block) 2465 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2466 2467 /* HTC flags */ 2468 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2469 2470 /* PPE Thresholds */ 2471 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2472 flags |= STA_CTXT_HE_PACKET_EXT; 2473 2474 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2475 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2476 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2477 2478 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2479 IEEE80211_HE_MAC_CAP2_ACK_EN) 2480 flags |= STA_CTXT_HE_ACK_ENABLED; 2481 2482 rcu_read_unlock(); 2483 2484 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2485 &sta_ctxt_cmd.trig_based_txf[0])) 2486 flags |= STA_CTXT_HE_MU_EDCA_CW; 2487 2488 if (vif->bss_conf.uora_exists) { 2489 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2490 2491 sta_ctxt_cmd.rand_alloc_ecwmin = 2492 vif->bss_conf.uora_ocw_range & 0x7; 2493 sta_ctxt_cmd.rand_alloc_ecwmax = 2494 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2495 } 2496 2497 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2498 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2499 2500 if (vif->bss_conf.nontransmitted) { 2501 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2502 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2503 vif->bss_conf.transmitter_bssid); 2504 sta_ctxt_cmd.max_bssid_indicator = 2505 vif->bss_conf.bssid_indicator; 2506 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2507 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2508 sta_ctxt_cmd.profile_periodicity = 2509 vif->bss_conf.profile_periodicity; 2510 } 2511 2512 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2513 2514 if (ver < 3) { 2515 /* fields before pkt_ext */ 2516 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2517 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2518 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2519 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2520 2521 /* pkt_ext */ 2522 for (i = 0; 2523 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2524 i++) { 2525 u8 bw; 2526 2527 for (bw = 0; 2528 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2529 bw++) { 2530 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2531 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2532 2533 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2534 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2535 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2536 } 2537 } 2538 2539 /* fields after pkt_ext */ 2540 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2541 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2542 sizeof(sta_ctxt_cmd_v2) - 2543 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2544 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2545 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2546 (u8 *)&sta_ctxt_cmd + 2547 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2548 sizeof(sta_ctxt_cmd) - 2549 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2550 sta_ctxt_cmd_v2.reserved3 = 0; 2551 } 2552 2553 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2554 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2555 } 2556 2557 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2558 u32 duration_override, unsigned int link_id) 2559 { 2560 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2561 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2562 2563 if (duration_override > duration) 2564 duration = duration_override; 2565 2566 /* Try really hard to protect the session and hear a beacon 2567 * The new session protection command allows us to protect the 2568 * session for a much longer time since the firmware will internally 2569 * create two events: a 300TU one with a very high priority that 2570 * won't be fragmented which should be enough for 99% of the cases, 2571 * and another one (which we configure here to be 900TU long) which 2572 * will have a slightly lower priority, but more importantly, can be 2573 * fragmented so that it'll allow other activities to run. 2574 */ 2575 if (fw_has_capa(&mvm->fw->ucode_capa, 2576 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2577 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2578 min_duration, false, 2579 link_id); 2580 else 2581 iwl_mvm_protect_session(mvm, vif, duration, 2582 min_duration, 500, false); 2583 } 2584 2585 /* Handle association common part to MLD and non-MLD modes */ 2586 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2587 struct ieee80211_vif *vif, 2588 u64 changes) 2589 { 2590 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2591 int ret; 2592 int link_id; 2593 2594 /* The firmware tracks the MU-MIMO group on its own. 2595 * However, on HW restart we should restore this data. 2596 */ 2597 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2598 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2599 ret = iwl_mvm_update_mu_groups(mvm, vif); 2600 if (ret) 2601 IWL_ERR(mvm, 2602 "failed to update VHT MU_MIMO groups\n"); 2603 } 2604 2605 iwl_mvm_recalc_multicast(mvm); 2606 2607 /* reset rssi values */ 2608 for_each_mvm_vif_valid_link(mvmvif, link_id) 2609 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2610 2611 iwl_mvm_bt_coex_vif_change(mvm); 2612 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2613 IEEE80211_SMPS_AUTOMATIC); 2614 if (fw_has_capa(&mvm->fw->ucode_capa, 2615 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2616 iwl_mvm_config_scan(mvm); 2617 } 2618 2619 /* Execute the common part for MLD and non-MLD modes */ 2620 void 2621 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2622 struct ieee80211_vif *vif, 2623 struct ieee80211_bss_conf *link_conf, 2624 u64 changes) 2625 { 2626 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2627 int ret; 2628 2629 if (changes & BSS_CHANGED_BEACON_INFO) { 2630 /* We received a beacon from the associated AP so 2631 * remove the session protection. 2632 */ 2633 iwl_mvm_stop_session_protection(mvm, vif); 2634 2635 iwl_mvm_sf_update(mvm, vif, false); 2636 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2637 } 2638 2639 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2640 /* Send power command on every beacon change, 2641 * because we may have not enabled beacon abort yet. 2642 */ 2643 BSS_CHANGED_BEACON_INFO)) { 2644 ret = iwl_mvm_power_update_mac(mvm); 2645 if (ret) 2646 IWL_ERR(mvm, "failed to update power mode\n"); 2647 } 2648 2649 if (changes & BSS_CHANGED_CQM) { 2650 struct iwl_mvm_vif_link_info *link_info = 2651 mvmvif->link[link_conf->link_id]; 2652 2653 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2654 if (link_info) 2655 link_info->bf_data.last_cqm_event = 0; 2656 2657 if (mvmvif->bf_enabled) { 2658 /* FIXME: need to update per link when FW API will 2659 * support it 2660 */ 2661 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2662 if (ret) 2663 IWL_ERR(mvm, 2664 "failed to update CQM thresholds\n"); 2665 } 2666 } 2667 2668 if (changes & BSS_CHANGED_BANDWIDTH) 2669 iwl_mvm_update_link_smps(vif, link_conf); 2670 } 2671 2672 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2673 struct ieee80211_vif *vif, 2674 struct ieee80211_bss_conf *bss_conf, 2675 u64 changes) 2676 { 2677 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2678 int ret; 2679 int i; 2680 2681 /* 2682 * Re-calculate the tsf id, as the leader-follower relations depend 2683 * on the beacon interval, which was not known when the station 2684 * interface was added. 2685 */ 2686 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2687 if ((vif->bss_conf.he_support && 2688 !iwlwifi_mod_params.disable_11ax)) 2689 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2690 2691 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2692 } 2693 2694 /* Update MU EDCA params */ 2695 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2696 vif->cfg.assoc && 2697 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2698 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2699 2700 /* 2701 * If we're not associated yet, take the (new) BSSID before associating 2702 * so the firmware knows. If we're already associated, then use the old 2703 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2704 * branch for disassociation below. 2705 */ 2706 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2707 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2708 2709 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2710 if (ret) 2711 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2712 2713 /* after sending it once, adopt mac80211 data */ 2714 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2715 mvmvif->associated = vif->cfg.assoc; 2716 2717 if (changes & BSS_CHANGED_ASSOC) { 2718 if (vif->cfg.assoc) { 2719 /* clear statistics to get clean beacon counter */ 2720 iwl_mvm_request_statistics(mvm, true); 2721 for_each_mvm_vif_valid_link(mvmvif, i) 2722 memset(&mvmvif->link[i]->beacon_stats, 0, 2723 sizeof(mvmvif->link[i]->beacon_stats)); 2724 2725 /* add quota for this interface */ 2726 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2727 if (ret) { 2728 IWL_ERR(mvm, "failed to update quotas\n"); 2729 return; 2730 } 2731 2732 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2733 &mvm->status) && 2734 !fw_has_capa(&mvm->fw->ucode_capa, 2735 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2736 /* 2737 * If we're restarting then the firmware will 2738 * obviously have lost synchronisation with 2739 * the AP. It will attempt to synchronise by 2740 * itself, but we can make it more reliable by 2741 * scheduling a session protection time event. 2742 * 2743 * The firmware needs to receive a beacon to 2744 * catch up with synchronisation, use 110% of 2745 * the beacon interval. 2746 * 2747 * Set a large maximum delay to allow for more 2748 * than a single interface. 2749 * 2750 * For new firmware versions, rely on the 2751 * firmware. This is relevant for DCM scenarios 2752 * only anyway. 2753 */ 2754 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2755 iwl_mvm_protect_session(mvm, vif, dur, dur, 2756 5 * dur, false); 2757 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2758 &mvm->status) && 2759 !vif->bss_conf.dtim_period) { 2760 /* 2761 * If we're not restarting and still haven't 2762 * heard a beacon (dtim period unknown) then 2763 * make sure we still have enough minimum time 2764 * remaining in the time event, since the auth 2765 * might actually have taken quite a while 2766 * (especially for SAE) and so the remaining 2767 * time could be small without us having heard 2768 * a beacon yet. 2769 */ 2770 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2771 } 2772 2773 iwl_mvm_sf_update(mvm, vif, false); 2774 iwl_mvm_power_vif_assoc(mvm, vif); 2775 if (vif->p2p) { 2776 iwl_mvm_update_smps(mvm, vif, 2777 IWL_MVM_SMPS_REQ_PROT, 2778 IEEE80211_SMPS_DYNAMIC, 0); 2779 } 2780 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2781 iwl_mvm_mei_host_disassociated(mvm); 2782 /* 2783 * If update fails - SF might be running in associated 2784 * mode while disassociated - which is forbidden. 2785 */ 2786 ret = iwl_mvm_sf_update(mvm, vif, false); 2787 WARN_ONCE(ret && 2788 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2789 &mvm->status), 2790 "Failed to update SF upon disassociation\n"); 2791 2792 /* 2793 * If we get an assert during the connection (after the 2794 * station has been added, but before the vif is set 2795 * to associated), mac80211 will re-add the station and 2796 * then configure the vif. Since the vif is not 2797 * associated, we would remove the station here and 2798 * this would fail the recovery. 2799 */ 2800 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2801 &mvm->status)) { 2802 /* first remove remaining keys */ 2803 iwl_mvm_sec_key_remove_ap(mvm, vif, 2804 &mvmvif->deflink, 0); 2805 2806 /* 2807 * Remove AP station now that 2808 * the MAC is unassoc 2809 */ 2810 ret = iwl_mvm_rm_sta_id(mvm, vif, 2811 mvmvif->deflink.ap_sta_id); 2812 if (ret) 2813 IWL_ERR(mvm, 2814 "failed to remove AP station\n"); 2815 2816 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2817 } 2818 2819 /* remove quota for this interface */ 2820 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2821 if (ret) 2822 IWL_ERR(mvm, "failed to update quotas\n"); 2823 2824 /* this will take the cleared BSSID from bss_conf */ 2825 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2826 if (ret) 2827 IWL_ERR(mvm, 2828 "failed to update MAC %pM (clear after unassoc)\n", 2829 vif->addr); 2830 } 2831 2832 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2833 } 2834 2835 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2836 changes); 2837 } 2838 2839 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 2840 struct ieee80211_vif *vif, 2841 int *ret) 2842 { 2843 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2844 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2845 int i; 2846 2847 lockdep_assert_held(&mvm->mutex); 2848 2849 mvmvif->ap_assoc_sta_count = 0; 2850 2851 /* must be set before quota calculations */ 2852 mvmvif->ap_ibss_active = true; 2853 2854 /* send all the early keys to the device now */ 2855 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2856 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2857 2858 if (!key) 2859 continue; 2860 2861 mvmvif->ap_early_keys[i] = NULL; 2862 2863 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2864 if (*ret) 2865 return true; 2866 } 2867 2868 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2869 iwl_mvm_vif_set_low_latency(mvmvif, true, 2870 LOW_LATENCY_VIF_TYPE); 2871 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2872 } 2873 2874 /* power updated needs to be done before quotas */ 2875 iwl_mvm_power_update_mac(mvm); 2876 2877 return false; 2878 } 2879 2880 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2881 struct ieee80211_vif *vif, 2882 struct ieee80211_bss_conf *link_conf) 2883 { 2884 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2885 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2886 int ret; 2887 2888 mutex_lock(&mvm->mutex); 2889 2890 /* 2891 * Re-calculate the tsf id, as the leader-follower relations depend on 2892 * the beacon interval, which was not known when the AP interface 2893 * was added. 2894 */ 2895 if (vif->type == NL80211_IFTYPE_AP) 2896 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2897 2898 /* For older devices need to send beacon template before adding mac 2899 * context. For the newer, the beacon is a resource that belongs to a 2900 * MAC, so need to send beacon template after adding the mac. 2901 */ 2902 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 2903 /* Add the mac context */ 2904 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2905 if (ret) 2906 goto out_unlock; 2907 2908 /* Send the beacon template */ 2909 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2910 if (ret) 2911 goto out_unlock; 2912 } else { 2913 /* Send the beacon template */ 2914 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 2915 if (ret) 2916 goto out_unlock; 2917 2918 /* Add the mac context */ 2919 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2920 if (ret) 2921 goto out_unlock; 2922 } 2923 2924 /* Perform the binding */ 2925 ret = iwl_mvm_binding_add_vif(mvm, vif); 2926 if (ret) 2927 goto out_remove; 2928 2929 /* 2930 * This is not very nice, but the simplest: 2931 * For older FWs adding the mcast sta before the bcast station may 2932 * cause assert 0x2b00. 2933 * This is fixed in later FW so make the order of removal depend on 2934 * the TLV 2935 */ 2936 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2937 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2938 if (ret) 2939 goto out_unbind; 2940 /* 2941 * Send the bcast station. At this stage the TBTT and DTIM time 2942 * events are added and applied to the scheduler 2943 */ 2944 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2945 if (ret) { 2946 iwl_mvm_rm_mcast_sta(mvm, vif); 2947 goto out_unbind; 2948 } 2949 } else { 2950 /* 2951 * Send the bcast station. At this stage the TBTT and DTIM time 2952 * events are added and applied to the scheduler 2953 */ 2954 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2955 if (ret) 2956 goto out_unbind; 2957 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2958 if (ret) { 2959 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2960 goto out_unbind; 2961 } 2962 } 2963 2964 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 2965 goto out_failed; 2966 2967 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2968 if (ret) 2969 goto out_failed; 2970 2971 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2972 if (vif->p2p && mvm->p2p_device_vif) 2973 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2974 2975 iwl_mvm_bt_coex_vif_change(mvm); 2976 2977 /* we don't support TDLS during DCM */ 2978 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2979 iwl_mvm_teardown_tdls_peers(mvm); 2980 2981 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 2982 2983 goto out_unlock; 2984 2985 out_failed: 2986 iwl_mvm_power_update_mac(mvm); 2987 mvmvif->ap_ibss_active = false; 2988 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2989 iwl_mvm_rm_mcast_sta(mvm, vif); 2990 out_unbind: 2991 iwl_mvm_binding_remove_vif(mvm, vif); 2992 out_remove: 2993 iwl_mvm_mac_ctxt_remove(mvm, vif); 2994 out_unlock: 2995 mutex_unlock(&mvm->mutex); 2996 return ret; 2997 } 2998 2999 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3000 struct ieee80211_vif *vif, 3001 struct ieee80211_bss_conf *link_conf) 3002 { 3003 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3004 } 3005 3006 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3007 struct ieee80211_vif *vif) 3008 { 3009 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3010 } 3011 3012 /* Common part for MLD and non-MLD ops */ 3013 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3014 struct ieee80211_vif *vif) 3015 { 3016 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3017 3018 lockdep_assert_held(&mvm->mutex); 3019 3020 iwl_mvm_prepare_mac_removal(mvm, vif); 3021 3022 /* Handle AP stop while in CSA */ 3023 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3024 iwl_mvm_remove_time_event(mvm, mvmvif, 3025 &mvmvif->time_event_data); 3026 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3027 mvmvif->csa_countdown = false; 3028 } 3029 3030 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3031 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3032 mvm->csa_tx_block_bcn_timeout = 0; 3033 } 3034 3035 mvmvif->ap_ibss_active = false; 3036 mvm->ap_last_beacon_gp2 = 0; 3037 3038 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3039 iwl_mvm_vif_set_low_latency(mvmvif, false, 3040 LOW_LATENCY_VIF_TYPE); 3041 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3042 } 3043 3044 iwl_mvm_bt_coex_vif_change(mvm); 3045 } 3046 3047 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3048 struct ieee80211_vif *vif, 3049 struct ieee80211_bss_conf *link_conf) 3050 { 3051 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3052 3053 mutex_lock(&mvm->mutex); 3054 3055 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3056 3057 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3058 if (vif->p2p && mvm->p2p_device_vif) 3059 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3060 3061 iwl_mvm_update_quotas(mvm, false, NULL); 3062 3063 iwl_mvm_ftm_responder_clear(mvm, vif); 3064 3065 /* 3066 * This is not very nice, but the simplest: 3067 * For older FWs removing the mcast sta before the bcast station may 3068 * cause assert 0x2b00. 3069 * This is fixed in later FW (which will stop beaconing when removing 3070 * bcast station). 3071 * So make the order of removal depend on the TLV 3072 */ 3073 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3074 iwl_mvm_rm_mcast_sta(mvm, vif); 3075 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3076 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3077 iwl_mvm_rm_mcast_sta(mvm, vif); 3078 iwl_mvm_binding_remove_vif(mvm, vif); 3079 3080 iwl_mvm_power_update_mac(mvm); 3081 3082 iwl_mvm_mac_ctxt_remove(mvm, vif); 3083 3084 mutex_unlock(&mvm->mutex); 3085 } 3086 3087 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3088 struct ieee80211_vif *vif, 3089 struct ieee80211_bss_conf *link_conf) 3090 { 3091 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3092 } 3093 3094 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3095 struct ieee80211_vif *vif) 3096 { 3097 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3098 } 3099 3100 static void 3101 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3102 struct ieee80211_vif *vif, 3103 struct ieee80211_bss_conf *bss_conf, 3104 u64 changes) 3105 { 3106 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3107 3108 /* Changes will be applied when the AP/IBSS is started */ 3109 if (!mvmvif->ap_ibss_active) 3110 return; 3111 3112 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3113 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3114 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3115 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3116 3117 /* Need to send a new beacon template to the FW */ 3118 if (changes & BSS_CHANGED_BEACON && 3119 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3120 IWL_WARN(mvm, "Failed updating beacon data\n"); 3121 3122 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3123 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3124 3125 if (ret) 3126 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3127 ret); 3128 } 3129 3130 } 3131 3132 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3133 struct ieee80211_vif *vif, 3134 struct ieee80211_bss_conf *bss_conf, 3135 u64 changes) 3136 { 3137 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3138 3139 mutex_lock(&mvm->mutex); 3140 3141 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3142 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3143 3144 switch (vif->type) { 3145 case NL80211_IFTYPE_STATION: 3146 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3147 break; 3148 case NL80211_IFTYPE_AP: 3149 case NL80211_IFTYPE_ADHOC: 3150 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3151 break; 3152 case NL80211_IFTYPE_MONITOR: 3153 if (changes & BSS_CHANGED_MU_GROUPS) 3154 iwl_mvm_update_mu_groups(mvm, vif); 3155 break; 3156 default: 3157 /* shouldn't happen */ 3158 WARN_ON_ONCE(1); 3159 } 3160 3161 if (changes & BSS_CHANGED_TXPOWER) { 3162 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3163 bss_conf->txpower); 3164 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 3165 } 3166 3167 mutex_unlock(&mvm->mutex); 3168 } 3169 3170 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3171 struct ieee80211_scan_request *hw_req) 3172 { 3173 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3174 int ret; 3175 3176 if (hw_req->req.n_channels == 0 || 3177 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3178 return -EINVAL; 3179 3180 mutex_lock(&mvm->mutex); 3181 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3182 mutex_unlock(&mvm->mutex); 3183 3184 return ret; 3185 } 3186 3187 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3188 struct ieee80211_vif *vif) 3189 { 3190 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3191 3192 mutex_lock(&mvm->mutex); 3193 3194 /* Due to a race condition, it's possible that mac80211 asks 3195 * us to stop a hw_scan when it's already stopped. This can 3196 * happen, for instance, if we stopped the scan ourselves, 3197 * called ieee80211_scan_completed() and the userspace called 3198 * cancel scan scan before ieee80211_scan_work() could run. 3199 * To handle that, simply return if the scan is not running. 3200 */ 3201 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3202 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3203 3204 mutex_unlock(&mvm->mutex); 3205 } 3206 3207 void 3208 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3209 struct ieee80211_sta *sta, u16 tids, 3210 int num_frames, 3211 enum ieee80211_frame_release_type reason, 3212 bool more_data) 3213 { 3214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3215 3216 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3217 3218 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3219 tids, more_data, false); 3220 } 3221 3222 void 3223 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3224 struct ieee80211_sta *sta, u16 tids, 3225 int num_frames, 3226 enum ieee80211_frame_release_type reason, 3227 bool more_data) 3228 { 3229 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3230 3231 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3232 3233 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3234 tids, more_data, true); 3235 } 3236 3237 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3238 enum sta_notify_cmd cmd, 3239 struct ieee80211_sta *sta) 3240 { 3241 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3242 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3243 unsigned long txqs = 0, tids = 0; 3244 int tid; 3245 3246 /* 3247 * If we have TVQM then we get too high queue numbers - luckily 3248 * we really shouldn't get here with that because such hardware 3249 * should have firmware supporting buffer station offload. 3250 */ 3251 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3252 return; 3253 3254 spin_lock_bh(&mvmsta->lock); 3255 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3256 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3257 3258 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3259 continue; 3260 3261 __set_bit(tid_data->txq_id, &txqs); 3262 3263 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3264 continue; 3265 3266 __set_bit(tid, &tids); 3267 } 3268 3269 switch (cmd) { 3270 case STA_NOTIFY_SLEEP: 3271 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3272 ieee80211_sta_set_buffered(sta, tid, true); 3273 3274 if (txqs) 3275 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3276 /* 3277 * The fw updates the STA to be asleep. Tx packets on the Tx 3278 * queues to this station will not be transmitted. The fw will 3279 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3280 */ 3281 break; 3282 case STA_NOTIFY_AWAKE: 3283 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3284 break; 3285 3286 if (txqs) 3287 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3288 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3289 break; 3290 default: 3291 break; 3292 } 3293 spin_unlock_bh(&mvmsta->lock); 3294 } 3295 3296 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3297 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3298 { 3299 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3300 } 3301 3302 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3303 { 3304 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3305 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3306 struct ieee80211_sta *sta; 3307 struct iwl_mvm_sta *mvmsta; 3308 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3309 3310 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3311 return; 3312 3313 rcu_read_lock(); 3314 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3315 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3316 rcu_read_unlock(); 3317 return; 3318 } 3319 3320 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3321 3322 if (!mvmsta->vif || 3323 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3324 rcu_read_unlock(); 3325 return; 3326 } 3327 3328 if (mvmsta->sleeping != sleeping) { 3329 mvmsta->sleeping = sleeping; 3330 __iwl_mvm_mac_sta_notify(mvm->hw, 3331 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3332 sta); 3333 ieee80211_sta_ps_transition(sta, sleeping); 3334 } 3335 3336 if (sleeping) { 3337 switch (notif->type) { 3338 case IWL_MVM_PM_EVENT_AWAKE: 3339 case IWL_MVM_PM_EVENT_ASLEEP: 3340 break; 3341 case IWL_MVM_PM_EVENT_UAPSD: 3342 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3343 break; 3344 case IWL_MVM_PM_EVENT_PS_POLL: 3345 ieee80211_sta_pspoll(sta); 3346 break; 3347 default: 3348 break; 3349 } 3350 } 3351 3352 rcu_read_unlock(); 3353 } 3354 3355 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3356 struct ieee80211_vif *vif, 3357 struct ieee80211_sta *sta) 3358 { 3359 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3360 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3361 unsigned int link_id; 3362 3363 /* 3364 * This is called before mac80211 does RCU synchronisation, 3365 * so here we already invalidate our internal RCU-protected 3366 * station pointer. The rest of the code will thus no longer 3367 * be able to find the station this way, and we don't rely 3368 * on further RCU synchronisation after the sta_state() 3369 * callback deleted the station. 3370 * Since there's mvm->mutex here, no need to have RCU lock for 3371 * mvm_sta->link access. 3372 */ 3373 mutex_lock(&mvm->mutex); 3374 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3375 struct iwl_mvm_link_sta *link_sta; 3376 u32 sta_id; 3377 3378 if (!mvm_sta->link[link_id]) 3379 continue; 3380 3381 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3382 lockdep_is_held(&mvm->mutex)); 3383 sta_id = link_sta->sta_id; 3384 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3385 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3386 ERR_PTR(-ENOENT)); 3387 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3388 } 3389 } 3390 mutex_unlock(&mvm->mutex); 3391 } 3392 3393 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3394 const u8 *bssid) 3395 { 3396 int i; 3397 3398 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3399 struct iwl_mvm_tcm_mac *mdata; 3400 3401 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3402 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3403 mdata->opened_rx_ba_sessions = false; 3404 } 3405 3406 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3407 return; 3408 3409 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3410 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3411 return; 3412 } 3413 3414 if (!vif->p2p && 3415 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3416 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3417 return; 3418 } 3419 3420 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3421 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3422 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3423 return; 3424 } 3425 } 3426 3427 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3428 } 3429 3430 static void 3431 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3432 struct ieee80211_vif *vif, u8 *peer_addr, 3433 enum nl80211_tdls_operation action) 3434 { 3435 struct iwl_fw_dbg_trigger_tlv *trig; 3436 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3437 3438 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3439 FW_DBG_TRIGGER_TDLS); 3440 if (!trig) 3441 return; 3442 3443 tdls_trig = (void *)trig->data; 3444 3445 if (!(tdls_trig->action_bitmap & BIT(action))) 3446 return; 3447 3448 if (tdls_trig->peer_mode && 3449 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3450 return; 3451 3452 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3453 "TDLS event occurred, peer %pM, action %d", 3454 peer_addr, action); 3455 } 3456 3457 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3458 bool tolerated; 3459 }; 3460 3461 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3462 struct cfg80211_bss *bss, 3463 void *_data) 3464 { 3465 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3466 const struct cfg80211_bss_ies *ies; 3467 const struct element *elem; 3468 3469 rcu_read_lock(); 3470 ies = rcu_dereference(bss->ies); 3471 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3472 ies->len); 3473 3474 if (!elem || elem->datalen < 10 || 3475 !(elem->data[10] & 3476 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3477 data->tolerated = false; 3478 } 3479 rcu_read_unlock(); 3480 } 3481 3482 static void 3483 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3484 struct ieee80211_vif *vif, 3485 unsigned int link_id, 3486 struct ieee80211_bss_conf *link_conf) 3487 { 3488 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3489 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3490 .tolerated = true, 3491 }; 3492 3493 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3494 !mvmvif->link[link_id])) 3495 return; 3496 3497 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3498 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3499 return; 3500 } 3501 3502 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3503 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3504 &iter_data); 3505 3506 /* 3507 * If there is at least one AP on radar channel that cannot 3508 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3509 */ 3510 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3511 } 3512 3513 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3514 struct ieee80211_vif *vif) 3515 { 3516 struct ieee80211_supported_band *sband; 3517 const struct ieee80211_sta_he_cap *he_cap; 3518 3519 if (vif->type != NL80211_IFTYPE_STATION) 3520 return; 3521 3522 if (!mvm->cca_40mhz_workaround) 3523 return; 3524 3525 /* decrement and check that we reached zero */ 3526 mvm->cca_40mhz_workaround--; 3527 if (mvm->cca_40mhz_workaround) 3528 return; 3529 3530 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3531 3532 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3533 3534 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3535 3536 if (he_cap) { 3537 /* we know that ours is writable */ 3538 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3539 3540 he->he_cap_elem.phy_cap_info[0] |= 3541 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3542 } 3543 } 3544 3545 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3546 struct ieee80211_vif *vif, 3547 struct iwl_mvm_sta *mvm_sta) 3548 { 3549 #if IS_ENABLED(CONFIG_IWLMEI) 3550 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3551 struct iwl_mei_conn_info conn_info = { 3552 .ssid_len = vif->cfg.ssid_len, 3553 }; 3554 3555 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3556 return; 3557 3558 if (!mvm->mei_registered) 3559 return; 3560 3561 /* FIXME: MEI needs to be updated for MLO */ 3562 if (!vif->bss_conf.chanreq.oper.chan) 3563 return; 3564 3565 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3566 3567 switch (mvm_sta->pairwise_cipher) { 3568 case WLAN_CIPHER_SUITE_TKIP: 3569 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3570 break; 3571 case WLAN_CIPHER_SUITE_CCMP: 3572 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3573 break; 3574 case WLAN_CIPHER_SUITE_GCMP: 3575 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3576 break; 3577 case WLAN_CIPHER_SUITE_GCMP_256: 3578 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3579 break; 3580 case 0: 3581 /* open profile */ 3582 break; 3583 default: 3584 /* cipher not supported, don't send anything to iwlmei */ 3585 return; 3586 } 3587 3588 switch (mvmvif->rekey_data.akm) { 3589 case WLAN_AKM_SUITE_SAE & 0xff: 3590 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3591 break; 3592 case WLAN_AKM_SUITE_PSK & 0xff: 3593 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3594 break; 3595 case WLAN_AKM_SUITE_8021X & 0xff: 3596 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3597 break; 3598 case 0: 3599 /* open profile */ 3600 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3601 break; 3602 default: 3603 /* auth method / AKM not supported */ 3604 /* TODO: All the FT vesions of these? */ 3605 return; 3606 } 3607 3608 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3609 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3610 3611 /* TODO: add support for collocated AP data */ 3612 iwl_mei_host_associated(&conn_info, NULL); 3613 #endif 3614 } 3615 3616 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3617 struct ieee80211_vif *vif, 3618 bool force_assoc_off) 3619 { 3620 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3621 } 3622 3623 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3624 struct ieee80211_vif *vif, 3625 struct ieee80211_sta *sta, 3626 enum ieee80211_sta_state old_state, 3627 enum ieee80211_sta_state new_state) 3628 { 3629 static const struct iwl_mvm_sta_state_ops callbacks = { 3630 .add_sta = iwl_mvm_add_sta, 3631 .update_sta = iwl_mvm_update_sta, 3632 .rm_sta = iwl_mvm_rm_sta, 3633 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3634 }; 3635 3636 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3637 &callbacks); 3638 } 3639 3640 /* FIXME: temporary making two assumptions in all sta handling functions: 3641 * (1) when setting sta state, the link exists and protected 3642 * (2) if a link is valid in sta then it's valid in vif (can 3643 * use same index in the link array) 3644 */ 3645 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3646 struct ieee80211_vif *vif, 3647 struct ieee80211_sta *sta) 3648 { 3649 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3650 unsigned int link_id; 3651 3652 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3653 struct ieee80211_bss_conf *conf = 3654 link_conf_dereference_check(vif, link_id); 3655 struct ieee80211_link_sta *link_sta = 3656 link_sta_dereference_check(sta, link_id); 3657 3658 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3659 continue; 3660 3661 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3662 mvmvif->link[link_id]->phy_ctxt->channel->band); 3663 } 3664 } 3665 3666 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16 3667 3668 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3669 struct ieee80211_vif *vif, 3670 struct ieee80211_sta *sta) 3671 { 3672 struct ieee80211_link_sta *link_sta; 3673 unsigned int link_id; 3674 3675 /* Beacon interval check - firmware will crash if the beacon 3676 * interval is less than 16. We can't avoid connecting at all, 3677 * so refuse the station state change, this will cause mac80211 3678 * to abandon attempts to connect to this AP, and eventually 3679 * wpa_s will blocklist the AP... 3680 */ 3681 3682 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3683 struct ieee80211_bss_conf *link_conf = 3684 link_conf_dereference_protected(vif, link_id); 3685 3686 if (!link_conf) 3687 continue; 3688 3689 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3690 IWL_ERR(mvm, 3691 "Beacon interval %d for AP %pM is too small\n", 3692 link_conf->beacon_int, link_sta->addr); 3693 return false; 3694 } 3695 3696 link_conf->he_support = link_sta->he_cap.has_he; 3697 } 3698 3699 return true; 3700 } 3701 3702 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3703 struct ieee80211_vif *vif, 3704 struct ieee80211_sta *sta, 3705 bool is_sta) 3706 { 3707 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3708 struct ieee80211_link_sta *link_sta; 3709 unsigned int link_id; 3710 3711 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3712 struct ieee80211_bss_conf *link_conf = 3713 link_conf_dereference_protected(vif, link_id); 3714 3715 if (!link_conf || !mvmvif->link[link_id]) 3716 continue; 3717 3718 link_conf->he_support = link_sta->he_cap.has_he; 3719 3720 if (is_sta) { 3721 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3722 if (link_sta->he_cap.has_he) 3723 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3724 link_id, 3725 link_conf); 3726 } 3727 } 3728 } 3729 3730 static int 3731 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3732 struct ieee80211_vif *vif, 3733 struct ieee80211_sta *sta, 3734 const struct iwl_mvm_sta_state_ops *callbacks) 3735 { 3736 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3737 struct ieee80211_link_sta *link_sta; 3738 unsigned int i; 3739 int ret; 3740 3741 lockdep_assert_held(&mvm->mutex); 3742 3743 if (vif->type == NL80211_IFTYPE_STATION && 3744 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3745 return -EINVAL; 3746 3747 if (sta->tdls && 3748 (vif->p2p || 3749 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3750 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3751 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3752 return -EBUSY; 3753 } 3754 3755 ret = callbacks->add_sta(mvm, vif, sta); 3756 if (sta->tdls && ret == 0) { 3757 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3758 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3759 NL80211_TDLS_SETUP); 3760 } 3761 3762 if (ret) 3763 return ret; 3764 3765 for_each_sta_active_link(vif, sta, link_sta, i) 3766 link_sta->agg.max_rc_amsdu_len = 1; 3767 3768 ieee80211_sta_recalc_aggregates(sta); 3769 3770 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3771 mvmvif->ap_sta = sta; 3772 3773 /* 3774 * Initialize the rates here already - this really tells 3775 * the firmware only what the supported legacy rates are 3776 * (may be) since it's initialized already from what the 3777 * AP advertised in the beacon/probe response. This will 3778 * allow the firmware to send auth/assoc frames with one 3779 * of the supported rates already, rather than having to 3780 * use a mandatory rate. 3781 * If we're the AP, we'll just assume mandatory rates at 3782 * this point, but we know nothing about the STA anyway. 3783 */ 3784 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3785 3786 return 0; 3787 } 3788 3789 static int 3790 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3791 struct iwl_mvm *mvm, 3792 struct ieee80211_vif *vif, 3793 struct ieee80211_sta *sta, 3794 const struct iwl_mvm_sta_state_ops *callbacks) 3795 { 3796 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3797 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3798 struct ieee80211_link_sta *link_sta; 3799 unsigned int link_id; 3800 3801 lockdep_assert_held(&mvm->mutex); 3802 3803 if (vif->type == NL80211_IFTYPE_AP) { 3804 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3805 mvmvif->ap_assoc_sta_count++; 3806 callbacks->mac_ctxt_changed(mvm, vif, false); 3807 3808 /* since the below is not for MLD API, it's ok to use 3809 * the default bss_conf 3810 */ 3811 if (!mvm->mld_api_is_used && 3812 (vif->bss_conf.he_support && 3813 !iwlwifi_mod_params.disable_11ax)) 3814 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3815 } else if (vif->type == NL80211_IFTYPE_STATION) { 3816 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3817 3818 callbacks->mac_ctxt_changed(mvm, vif, false); 3819 3820 if (!mvm->mld_api_is_used) 3821 goto out; 3822 3823 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3824 struct ieee80211_bss_conf *link_conf = 3825 link_conf_dereference_protected(vif, link_id); 3826 3827 if (WARN_ON(!link_conf)) 3828 return -EINVAL; 3829 if (!mvmvif->link[link_id]) 3830 continue; 3831 3832 iwl_mvm_link_changed(mvm, vif, link_conf, 3833 LINK_CONTEXT_MODIFY_ALL & 3834 ~LINK_CONTEXT_MODIFY_ACTIVE, 3835 true); 3836 } 3837 } 3838 3839 out: 3840 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3841 3842 return callbacks->update_sta(mvm, vif, sta); 3843 } 3844 3845 static int 3846 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3847 struct ieee80211_vif *vif, 3848 struct ieee80211_sta *sta, 3849 const struct iwl_mvm_sta_state_ops *callbacks) 3850 { 3851 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3852 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3853 3854 lockdep_assert_held(&mvm->mutex); 3855 3856 /* we don't support TDLS during DCM */ 3857 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3858 iwl_mvm_teardown_tdls_peers(mvm); 3859 3860 if (sta->tdls) { 3861 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3862 NL80211_TDLS_ENABLE_LINK); 3863 } else { 3864 /* enable beacon filtering */ 3865 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 3866 3867 mvmvif->authorized = 1; 3868 3869 callbacks->mac_ctxt_changed(mvm, vif, false); 3870 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3871 3872 /* when client is authorized (AP station marked as such), 3873 * try to enable more links 3874 */ 3875 if (vif->type == NL80211_IFTYPE_STATION && 3876 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3877 iwl_mvm_mld_select_links(mvm, vif, false); 3878 } 3879 3880 mvm_sta->authorized = true; 3881 3882 /* MFP is set by default before the station is authorized. 3883 * Clear it here in case it's not used. 3884 */ 3885 if (!sta->mfp) { 3886 int ret = callbacks->update_sta(mvm, vif, sta); 3887 3888 if (ret) 3889 return ret; 3890 } 3891 3892 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3893 3894 return 0; 3895 } 3896 3897 static int 3898 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 3899 struct ieee80211_vif *vif, 3900 struct ieee80211_sta *sta, 3901 const struct iwl_mvm_sta_state_ops *callbacks) 3902 { 3903 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3904 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3905 3906 lockdep_assert_held(&mvm->mutex); 3907 3908 mvmsta->authorized = false; 3909 3910 /* once we move into assoc state, need to update rate scale to 3911 * disable using wide bandwidth 3912 */ 3913 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3914 3915 if (!sta->tdls) { 3916 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 3917 * yet to avoid sending high prio again for a little 3918 * time. 3919 */ 3920 mvmvif->authorized = 0; 3921 3922 /* disable beacon filtering */ 3923 iwl_mvm_disable_beacon_filter(mvm, vif); 3924 } 3925 3926 return 0; 3927 } 3928 3929 /* Common part for MLD and non-MLD modes */ 3930 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 3931 struct ieee80211_vif *vif, 3932 struct ieee80211_sta *sta, 3933 enum ieee80211_sta_state old_state, 3934 enum ieee80211_sta_state new_state, 3935 const struct iwl_mvm_sta_state_ops *callbacks) 3936 { 3937 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3938 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3939 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3940 struct ieee80211_link_sta *link_sta; 3941 unsigned int link_id; 3942 int ret; 3943 3944 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3945 sta->addr, old_state, new_state); 3946 3947 /* 3948 * If we are in a STA removal flow and in DQA mode: 3949 * 3950 * This is after the sync_rcu part, so the queues have already been 3951 * flushed. No more TXs on their way in mac80211's path, and no more in 3952 * the queues. 3953 * Also, we won't be getting any new TX frames for this station. 3954 * What we might have are deferred TX frames that need to be taken care 3955 * of. 3956 * 3957 * Drop any still-queued deferred-frame before removing the STA, and 3958 * make sure the worker is no longer handling frames for this STA. 3959 */ 3960 if (old_state == IEEE80211_STA_NONE && 3961 new_state == IEEE80211_STA_NOTEXIST) { 3962 flush_work(&mvm->add_stream_wk); 3963 3964 /* 3965 * No need to make sure deferred TX indication is off since the 3966 * worker will already remove it if it was on 3967 */ 3968 3969 /* 3970 * Additionally, reset the 40 MHz capability if we disconnected 3971 * from the AP now. 3972 */ 3973 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3974 3975 /* Also free dup data just in case any assertions below fail */ 3976 kfree(mvm_sta->dup_data); 3977 } 3978 3979 mutex_lock(&mvm->mutex); 3980 3981 /* this would be a mac80211 bug ... but don't crash, unless we had a 3982 * firmware crash while we were activating a link, in which case it is 3983 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 3984 * recovery flow since we spit tons of error messages anyway. 3985 */ 3986 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3987 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 3988 !mvmvif->link[link_id]->phy_ctxt)) { 3989 mutex_unlock(&mvm->mutex); 3990 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3991 &mvm->status) ? 0 : -EINVAL; 3992 } 3993 } 3994 3995 /* track whether or not the station is associated */ 3996 mvm_sta->sta_state = new_state; 3997 3998 if (old_state == IEEE80211_STA_NOTEXIST && 3999 new_state == IEEE80211_STA_NONE) { 4000 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4001 callbacks); 4002 if (ret < 0) 4003 goto out_unlock; 4004 } else if (old_state == IEEE80211_STA_NONE && 4005 new_state == IEEE80211_STA_AUTH) { 4006 /* 4007 * EBS may be disabled due to previous failures reported by FW. 4008 * Reset EBS status here assuming environment has been changed. 4009 */ 4010 mvm->last_ebs_successful = true; 4011 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4012 ret = 0; 4013 } else if (old_state == IEEE80211_STA_AUTH && 4014 new_state == IEEE80211_STA_ASSOC) { 4015 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4016 callbacks); 4017 } else if (old_state == IEEE80211_STA_ASSOC && 4018 new_state == IEEE80211_STA_AUTHORIZED) { 4019 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4020 callbacks); 4021 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4022 new_state == IEEE80211_STA_ASSOC) { 4023 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4024 callbacks); 4025 } else if (old_state == IEEE80211_STA_ASSOC && 4026 new_state == IEEE80211_STA_AUTH) { 4027 if (vif->type == NL80211_IFTYPE_AP) { 4028 mvmvif->ap_assoc_sta_count--; 4029 callbacks->mac_ctxt_changed(mvm, vif, false); 4030 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4031 iwl_mvm_stop_session_protection(mvm, vif); 4032 ret = 0; 4033 } else if (old_state == IEEE80211_STA_AUTH && 4034 new_state == IEEE80211_STA_NONE) { 4035 ret = 0; 4036 } else if (old_state == IEEE80211_STA_NONE && 4037 new_state == IEEE80211_STA_NOTEXIST) { 4038 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4039 iwl_mvm_stop_session_protection(mvm, vif); 4040 mvmvif->ap_sta = NULL; 4041 } 4042 ret = callbacks->rm_sta(mvm, vif, sta); 4043 if (sta->tdls) { 4044 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4045 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4046 NL80211_TDLS_DISABLE_LINK); 4047 } 4048 4049 if (unlikely(ret && 4050 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4051 &mvm->status))) 4052 ret = 0; 4053 } else { 4054 ret = -EIO; 4055 } 4056 out_unlock: 4057 mutex_unlock(&mvm->mutex); 4058 4059 if (sta->tdls && ret == 0) { 4060 if (old_state == IEEE80211_STA_NOTEXIST && 4061 new_state == IEEE80211_STA_NONE) 4062 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4063 else if (old_state == IEEE80211_STA_NONE && 4064 new_state == IEEE80211_STA_NOTEXIST) 4065 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4066 } 4067 4068 return ret; 4069 } 4070 4071 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4072 { 4073 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4074 4075 mvm->rts_threshold = value; 4076 4077 return 0; 4078 } 4079 4080 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4081 struct ieee80211_sta *sta, u32 changed) 4082 { 4083 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4084 4085 if (changed & (IEEE80211_RC_BW_CHANGED | 4086 IEEE80211_RC_SUPP_RATES_CHANGED | 4087 IEEE80211_RC_NSS_CHANGED)) 4088 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4089 4090 if (vif->type == NL80211_IFTYPE_STATION && 4091 changed & IEEE80211_RC_NSS_CHANGED) 4092 iwl_mvm_sf_update(mvm, vif, false); 4093 } 4094 4095 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4096 struct ieee80211_vif *vif, 4097 unsigned int link_id, u16 ac, 4098 const struct ieee80211_tx_queue_params *params) 4099 { 4100 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4101 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4102 4103 mvmvif->deflink.queue_params[ac] = *params; 4104 4105 /* 4106 * No need to update right away, we'll get BSS_CHANGED_QOS 4107 * The exception is P2P_DEVICE interface which needs immediate update. 4108 */ 4109 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4110 int ret; 4111 4112 mutex_lock(&mvm->mutex); 4113 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4114 mutex_unlock(&mvm->mutex); 4115 return ret; 4116 } 4117 return 0; 4118 } 4119 4120 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4121 struct ieee80211_vif *vif, 4122 struct ieee80211_prep_tx_info *info) 4123 { 4124 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4125 4126 mutex_lock(&mvm->mutex); 4127 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4128 mutex_unlock(&mvm->mutex); 4129 } 4130 4131 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4132 struct ieee80211_vif *vif, 4133 struct ieee80211_prep_tx_info *info) 4134 { 4135 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4136 4137 /* for successful cases (auth/assoc), don't cancel session protection */ 4138 if (info->success) 4139 return; 4140 4141 mutex_lock(&mvm->mutex); 4142 iwl_mvm_stop_session_protection(mvm, vif); 4143 mutex_unlock(&mvm->mutex); 4144 } 4145 4146 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4147 struct ieee80211_vif *vif, 4148 struct cfg80211_sched_scan_request *req, 4149 struct ieee80211_scan_ies *ies) 4150 { 4151 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4152 4153 int ret; 4154 4155 mutex_lock(&mvm->mutex); 4156 4157 if (!vif->cfg.idle) { 4158 ret = -EBUSY; 4159 goto out; 4160 } 4161 4162 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4163 4164 out: 4165 mutex_unlock(&mvm->mutex); 4166 return ret; 4167 } 4168 4169 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4170 struct ieee80211_vif *vif) 4171 { 4172 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4173 int ret; 4174 4175 mutex_lock(&mvm->mutex); 4176 4177 /* Due to a race condition, it's possible that mac80211 asks 4178 * us to stop a sched_scan when it's already stopped. This 4179 * can happen, for instance, if we stopped the scan ourselves, 4180 * called ieee80211_sched_scan_stopped() and the userspace called 4181 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4182 * could run. To handle this, simply return if the scan is 4183 * not running. 4184 */ 4185 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4186 mutex_unlock(&mvm->mutex); 4187 return 0; 4188 } 4189 4190 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4191 mutex_unlock(&mvm->mutex); 4192 iwl_mvm_wait_for_async_handlers(mvm); 4193 4194 return ret; 4195 } 4196 4197 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4198 enum set_key_cmd cmd, 4199 struct ieee80211_vif *vif, 4200 struct ieee80211_sta *sta, 4201 struct ieee80211_key_conf *key) 4202 { 4203 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4204 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4205 struct iwl_mvm_sta *mvmsta = NULL; 4206 struct iwl_mvm_key_pn *ptk_pn = NULL; 4207 int keyidx = key->keyidx; 4208 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4209 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4210 int ret, i; 4211 u8 key_offset; 4212 4213 if (sta) 4214 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4215 4216 switch (key->cipher) { 4217 case WLAN_CIPHER_SUITE_TKIP: 4218 if (!mvm->trans->trans_cfg->gen2) { 4219 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4220 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4221 } else if (vif->type == NL80211_IFTYPE_STATION) { 4222 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4223 } else { 4224 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4225 return -EOPNOTSUPP; 4226 } 4227 break; 4228 case WLAN_CIPHER_SUITE_CCMP: 4229 case WLAN_CIPHER_SUITE_GCMP: 4230 case WLAN_CIPHER_SUITE_GCMP_256: 4231 if (!iwl_mvm_has_new_tx_api(mvm)) 4232 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4233 break; 4234 case WLAN_CIPHER_SUITE_AES_CMAC: 4235 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4236 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4237 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4238 break; 4239 case WLAN_CIPHER_SUITE_WEP40: 4240 case WLAN_CIPHER_SUITE_WEP104: 4241 if (vif->type == NL80211_IFTYPE_STATION) 4242 break; 4243 if (iwl_mvm_has_new_tx_api(mvm)) 4244 return -EOPNOTSUPP; 4245 /* support HW crypto on TX */ 4246 return 0; 4247 default: 4248 return -EOPNOTSUPP; 4249 } 4250 4251 switch (cmd) { 4252 case SET_KEY: 4253 if (vif->type == NL80211_IFTYPE_STATION && 4254 (keyidx == 6 || keyidx == 7)) 4255 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4256 key); 4257 4258 if ((vif->type == NL80211_IFTYPE_ADHOC || 4259 vif->type == NL80211_IFTYPE_AP) && !sta) { 4260 /* 4261 * GTK on AP interface is a TX-only key, return 0; 4262 * on IBSS they're per-station and because we're lazy 4263 * we don't support them for RX, so do the same. 4264 * CMAC/GMAC in AP/IBSS modes must be done in software 4265 * on older NICs. 4266 * 4267 * Except, of course, beacon protection - it must be 4268 * offloaded since we just set a beacon template, and 4269 * then we must also offload the IGTK (not just BIGTK) 4270 * for firmware reasons. 4271 * 4272 * So just check for beacon protection - if we don't 4273 * have it we cannot get here with keyidx >= 6, and 4274 * if we do have it we need to send the key to FW in 4275 * all cases (CMAC/GMAC). 4276 */ 4277 if (!wiphy_ext_feature_isset(hw->wiphy, 4278 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4279 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4280 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4281 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4282 ret = -EOPNOTSUPP; 4283 break; 4284 } 4285 4286 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4287 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4288 !iwl_mvm_has_new_tx_api(mvm)) { 4289 key->hw_key_idx = STA_KEY_IDX_INVALID; 4290 ret = 0; 4291 break; 4292 } 4293 4294 if (!mvmvif->ap_ibss_active) { 4295 for (i = 0; 4296 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4297 i++) { 4298 if (!mvmvif->ap_early_keys[i]) { 4299 mvmvif->ap_early_keys[i] = key; 4300 break; 4301 } 4302 } 4303 4304 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4305 ret = -ENOSPC; 4306 else 4307 ret = 0; 4308 4309 break; 4310 } 4311 } 4312 4313 /* During FW restart, in order to restore the state as it was, 4314 * don't try to reprogram keys we previously failed for. 4315 */ 4316 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4317 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4318 IWL_DEBUG_MAC80211(mvm, 4319 "skip invalid idx key programming during restart\n"); 4320 ret = 0; 4321 break; 4322 } 4323 4324 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4325 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4326 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4327 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4328 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4329 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4330 struct ieee80211_key_seq seq; 4331 int tid, q; 4332 4333 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4334 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4335 mvm->trans->num_rx_queues), 4336 GFP_KERNEL); 4337 if (!ptk_pn) { 4338 ret = -ENOMEM; 4339 break; 4340 } 4341 4342 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4343 ieee80211_get_key_rx_seq(key, tid, &seq); 4344 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4345 memcpy(ptk_pn->q[q].pn[tid], 4346 seq.ccmp.pn, 4347 IEEE80211_CCMP_PN_LEN); 4348 } 4349 4350 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4351 } 4352 4353 /* in HW restart reuse the index, otherwise request a new one */ 4354 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4355 key_offset = key->hw_key_idx; 4356 else 4357 key_offset = STA_KEY_IDX_INVALID; 4358 4359 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4360 mvmsta->pairwise_cipher = key->cipher; 4361 4362 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4363 sta ? sta->addr : NULL, key->keyidx); 4364 4365 if (sec_key_ver) 4366 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4367 else 4368 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4369 4370 if (ret) { 4371 IWL_WARN(mvm, "set key failed\n"); 4372 key->hw_key_idx = STA_KEY_IDX_INVALID; 4373 if (ptk_pn) { 4374 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4375 kfree(ptk_pn); 4376 } 4377 /* 4378 * can't add key for RX, but we don't need it 4379 * in the device for TX so still return 0, 4380 * unless we have new TX API where we cannot 4381 * put key material into the TX_CMD 4382 */ 4383 if (iwl_mvm_has_new_tx_api(mvm)) 4384 ret = -EOPNOTSUPP; 4385 else 4386 ret = 0; 4387 } 4388 4389 break; 4390 case DISABLE_KEY: 4391 if (vif->type == NL80211_IFTYPE_STATION && 4392 (keyidx == 6 || keyidx == 7)) 4393 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4394 NULL); 4395 4396 ret = -ENOENT; 4397 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4398 if (mvmvif->ap_early_keys[i] == key) { 4399 mvmvif->ap_early_keys[i] = NULL; 4400 ret = 0; 4401 } 4402 } 4403 4404 /* found in pending list - don't do anything else */ 4405 if (ret == 0) 4406 break; 4407 4408 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4409 ret = 0; 4410 break; 4411 } 4412 4413 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4414 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4415 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4416 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4417 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4418 ptk_pn = rcu_dereference_protected( 4419 mvmsta->ptk_pn[keyidx], 4420 lockdep_is_held(&mvm->mutex)); 4421 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4422 if (ptk_pn) 4423 kfree_rcu(ptk_pn, rcu_head); 4424 } 4425 4426 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4427 if (sec_key_ver) 4428 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4429 else 4430 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4431 break; 4432 default: 4433 ret = -EINVAL; 4434 } 4435 4436 return ret; 4437 } 4438 4439 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4440 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4441 struct ieee80211_key_conf *key) 4442 { 4443 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4444 int ret; 4445 4446 mutex_lock(&mvm->mutex); 4447 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4448 mutex_unlock(&mvm->mutex); 4449 4450 return ret; 4451 } 4452 4453 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4454 struct ieee80211_vif *vif, 4455 struct ieee80211_key_conf *keyconf, 4456 struct ieee80211_sta *sta, 4457 u32 iv32, u16 *phase1key) 4458 { 4459 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4460 4461 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4462 return; 4463 4464 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4465 } 4466 4467 4468 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4469 struct iwl_rx_packet *pkt, void *data) 4470 { 4471 struct iwl_mvm *mvm = 4472 container_of(notif_wait, struct iwl_mvm, notif_wait); 4473 struct iwl_hs20_roc_res *resp; 4474 int resp_len = iwl_rx_packet_payload_len(pkt); 4475 struct iwl_mvm_time_event_data *te_data = data; 4476 4477 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4478 return true; 4479 4480 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4481 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4482 return true; 4483 } 4484 4485 resp = (void *)pkt->data; 4486 4487 IWL_DEBUG_TE(mvm, 4488 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4489 resp->status, resp->event_unique_id); 4490 4491 te_data->uid = le32_to_cpu(resp->event_unique_id); 4492 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4493 te_data->uid); 4494 4495 spin_lock_bh(&mvm->time_event_lock); 4496 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4497 spin_unlock_bh(&mvm->time_event_lock); 4498 4499 return true; 4500 } 4501 4502 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4503 struct ieee80211_channel *channel, 4504 struct ieee80211_vif *vif, 4505 int duration) 4506 { 4507 int res; 4508 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4509 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4510 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4511 struct iwl_notification_wait wait_time_event; 4512 u32 req_dur, delay; 4513 struct iwl_hs20_roc_req aux_roc_req = { 4514 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4515 .id_and_color = 4516 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4517 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4518 }; 4519 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4520 &aux_roc_req.channel_info); 4521 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4522 4523 /* Set the channel info data */ 4524 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4525 iwl_mvm_phy_band_from_nl80211(channel->band), 4526 IWL_PHY_CHANNEL_MODE20, 4527 0); 4528 4529 /* Set the time and duration */ 4530 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4531 4532 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4533 tail->duration = cpu_to_le32(req_dur); 4534 tail->apply_time_max_delay = cpu_to_le32(delay); 4535 4536 IWL_DEBUG_TE(mvm, 4537 "ROC: Requesting to remain on channel %u for %ums\n", 4538 channel->hw_value, req_dur); 4539 IWL_DEBUG_TE(mvm, 4540 "\t(requested = %ums, max_delay = %ums)\n", 4541 duration, delay); 4542 4543 /* Set the node address */ 4544 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4545 4546 lockdep_assert_held(&mvm->mutex); 4547 4548 spin_lock_bh(&mvm->time_event_lock); 4549 4550 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4551 spin_unlock_bh(&mvm->time_event_lock); 4552 return -EIO; 4553 } 4554 4555 te_data->vif = vif; 4556 te_data->duration = duration; 4557 te_data->id = HOT_SPOT_CMD; 4558 4559 spin_unlock_bh(&mvm->time_event_lock); 4560 4561 /* 4562 * Use a notification wait, which really just processes the 4563 * command response and doesn't wait for anything, in order 4564 * to be able to process the response and get the UID inside 4565 * the RX path. Using CMD_WANT_SKB doesn't work because it 4566 * stores the buffer and then wakes up this thread, by which 4567 * time another notification (that the time event started) 4568 * might already be processed unsuccessfully. 4569 */ 4570 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4571 time_event_response, 4572 ARRAY_SIZE(time_event_response), 4573 iwl_mvm_rx_aux_roc, te_data); 4574 4575 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4576 &aux_roc_req); 4577 4578 if (res) { 4579 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4580 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4581 goto out_clear_te; 4582 } 4583 4584 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4585 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4586 /* should never fail */ 4587 WARN_ON_ONCE(res); 4588 4589 if (res) { 4590 out_clear_te: 4591 spin_lock_bh(&mvm->time_event_lock); 4592 iwl_mvm_te_clear_data(mvm, te_data); 4593 spin_unlock_bh(&mvm->time_event_lock); 4594 } 4595 4596 return res; 4597 } 4598 4599 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4600 { 4601 int ret = 0; 4602 4603 lockdep_assert_held(&mvm->mutex); 4604 4605 if (!fw_has_capa(&mvm->fw->ucode_capa, 4606 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4607 IWL_ERR(mvm, "hotspot not supported\n"); 4608 return -EINVAL; 4609 } 4610 4611 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4612 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4613 WARN(ret, "Failed to allocate aux station"); 4614 } 4615 4616 return ret; 4617 } 4618 4619 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4620 { 4621 int ret; 4622 4623 lockdep_assert_held(&mvm->mutex); 4624 4625 ret = iwl_mvm_binding_add_vif(mvm, vif); 4626 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4627 return ret; 4628 4629 /* The station and queue allocation must be done only after the binding 4630 * is done, as otherwise the FW might incorrectly configure its state. 4631 */ 4632 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4633 } 4634 4635 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4636 struct ieee80211_vif *vif, 4637 struct ieee80211_channel *channel, 4638 int duration, 4639 enum ieee80211_roc_type type) 4640 { 4641 static const struct iwl_mvm_roc_ops ops = { 4642 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4643 .link = iwl_mvm_roc_link, 4644 }; 4645 4646 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4647 } 4648 4649 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4650 struct ieee80211_channel *channel, 4651 struct ieee80211_vif *vif, 4652 int duration) 4653 { 4654 int ret; 4655 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4656 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4657 IWL_FW_CMD_VER_UNKNOWN); 4658 4659 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4660 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4661 } else if (fw_ver == 3) { 4662 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4663 ROC_ACTIVITY_HOTSPOT); 4664 } else { 4665 ret = -EOPNOTSUPP; 4666 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4667 } 4668 4669 return ret; 4670 } 4671 4672 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4673 struct ieee80211_vif *vif, 4674 struct ieee80211_channel *channel) 4675 { 4676 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4677 struct cfg80211_chan_def chandef; 4678 int i; 4679 4680 lockdep_assert_held(&mvm->mutex); 4681 4682 if (mvmvif->deflink.phy_ctxt && 4683 channel == mvmvif->deflink.phy_ctxt->channel) 4684 return 0; 4685 4686 /* Try using a PHY context that is already in use */ 4687 for (i = 0; i < NUM_PHY_CTX; i++) { 4688 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4689 4690 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4691 continue; 4692 4693 if (channel == phy_ctxt->channel) { 4694 if (mvmvif->deflink.phy_ctxt) 4695 iwl_mvm_phy_ctxt_unref(mvm, 4696 mvmvif->deflink.phy_ctxt); 4697 4698 mvmvif->deflink.phy_ctxt = phy_ctxt; 4699 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4700 return 0; 4701 } 4702 } 4703 4704 /* We already have a phy_ctxt, but it's not on the right channel */ 4705 if (mvmvif->deflink.phy_ctxt) 4706 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4707 4708 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4709 if (!mvmvif->deflink.phy_ctxt) 4710 return -ENOSPC; 4711 4712 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4713 4714 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4715 &chandef, NULL, 1, 1); 4716 } 4717 4718 /* Execute the common part for MLD and non-MLD modes */ 4719 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4720 struct ieee80211_channel *channel, int duration, 4721 enum ieee80211_roc_type type, 4722 const struct iwl_mvm_roc_ops *ops) 4723 { 4724 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4725 u32 lmac_id; 4726 int ret; 4727 4728 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4729 duration, type); 4730 4731 /* 4732 * Flush the done work, just in case it's still pending, so that 4733 * the work it does can complete and we can accept new frames. 4734 */ 4735 flush_work(&mvm->roc_done_wk); 4736 4737 mutex_lock(&mvm->mutex); 4738 4739 switch (vif->type) { 4740 case NL80211_IFTYPE_STATION: 4741 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4742 4743 /* Use aux roc framework (HS20) */ 4744 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4745 if (!ret) 4746 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4747 goto out_unlock; 4748 case NL80211_IFTYPE_P2P_DEVICE: 4749 /* handle below */ 4750 break; 4751 default: 4752 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4753 ret = -EINVAL; 4754 goto out_unlock; 4755 } 4756 4757 4758 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4759 if (ret) 4760 goto out_unlock; 4761 4762 ret = ops->link(mvm, vif); 4763 if (ret) 4764 goto out_unlock; 4765 4766 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4767 out_unlock: 4768 mutex_unlock(&mvm->mutex); 4769 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4770 return ret; 4771 } 4772 4773 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4774 struct ieee80211_vif *vif) 4775 { 4776 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4777 4778 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4779 4780 mutex_lock(&mvm->mutex); 4781 iwl_mvm_stop_roc(mvm, vif); 4782 mutex_unlock(&mvm->mutex); 4783 4784 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4785 return 0; 4786 } 4787 4788 struct iwl_mvm_ftm_responder_iter_data { 4789 bool responder; 4790 struct ieee80211_chanctx_conf *ctx; 4791 }; 4792 4793 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4794 struct ieee80211_vif *vif) 4795 { 4796 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4797 4798 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 4799 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4800 data->responder = true; 4801 } 4802 4803 bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4804 struct ieee80211_chanctx_conf *ctx) 4805 { 4806 struct iwl_mvm_ftm_responder_iter_data data = { 4807 .responder = false, 4808 .ctx = ctx, 4809 }; 4810 4811 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4812 IEEE80211_IFACE_ITER_NORMAL, 4813 iwl_mvm_ftm_responder_chanctx_iter, 4814 &data); 4815 return data.responder; 4816 } 4817 4818 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4819 struct ieee80211_chanctx_conf *ctx) 4820 { 4821 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4822 struct iwl_mvm_phy_ctxt *phy_ctxt; 4823 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4824 int ret; 4825 4826 lockdep_assert_held(&mvm->mutex); 4827 4828 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4829 4830 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4831 if (!phy_ctxt) { 4832 ret = -ENOSPC; 4833 goto out; 4834 } 4835 4836 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 4837 ctx->rx_chains_static, 4838 ctx->rx_chains_dynamic); 4839 if (ret) { 4840 IWL_ERR(mvm, "Failed to add PHY context\n"); 4841 goto out; 4842 } 4843 4844 *phy_ctxt_id = phy_ctxt->id; 4845 out: 4846 return ret; 4847 } 4848 4849 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4850 struct ieee80211_chanctx_conf *ctx) 4851 { 4852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4853 int ret; 4854 4855 mutex_lock(&mvm->mutex); 4856 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4857 mutex_unlock(&mvm->mutex); 4858 4859 return ret; 4860 } 4861 4862 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4863 struct ieee80211_chanctx_conf *ctx) 4864 { 4865 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4866 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4867 4868 lockdep_assert_held(&mvm->mutex); 4869 4870 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4871 } 4872 4873 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4874 struct ieee80211_chanctx_conf *ctx) 4875 { 4876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4877 4878 mutex_lock(&mvm->mutex); 4879 __iwl_mvm_remove_chanctx(mvm, ctx); 4880 mutex_unlock(&mvm->mutex); 4881 } 4882 4883 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4884 struct ieee80211_chanctx_conf *ctx, u32 changed) 4885 { 4886 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4887 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4888 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4889 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 4890 4891 if (WARN_ONCE((phy_ctxt->ref > 1) && 4892 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4893 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4894 IEEE80211_CHANCTX_CHANGE_RADAR | 4895 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4896 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4897 phy_ctxt->ref, changed)) 4898 return; 4899 4900 mutex_lock(&mvm->mutex); 4901 4902 /* we are only changing the min_width, may be a noop */ 4903 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4904 if (phy_ctxt->width == def->width) 4905 goto out_unlock; 4906 4907 /* we are just toggling between 20_NOHT and 20 */ 4908 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4909 def->width <= NL80211_CHAN_WIDTH_20) 4910 goto out_unlock; 4911 } 4912 4913 iwl_mvm_bt_coex_vif_change(mvm); 4914 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 4915 ctx->rx_chains_static, 4916 ctx->rx_chains_dynamic); 4917 4918 out_unlock: 4919 mutex_unlock(&mvm->mutex); 4920 } 4921 4922 /* 4923 * This function executes the common part for MLD and non-MLD modes. 4924 * 4925 * Returns true if we're done assigning the chanctx 4926 * (either on failure or success) 4927 */ 4928 static bool 4929 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 4930 struct ieee80211_vif *vif, 4931 struct ieee80211_chanctx_conf *ctx, 4932 bool switching_chanctx, int *ret) 4933 { 4934 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4935 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4936 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4937 4938 lockdep_assert_held(&mvm->mutex); 4939 4940 mvmvif->deflink.phy_ctxt = phy_ctxt; 4941 4942 switch (vif->type) { 4943 case NL80211_IFTYPE_AP: 4944 /* only needed if we're switching chanctx (i.e. during CSA) */ 4945 if (switching_chanctx) { 4946 mvmvif->ap_ibss_active = true; 4947 break; 4948 } 4949 fallthrough; 4950 case NL80211_IFTYPE_ADHOC: 4951 /* 4952 * The AP binding flow is handled as part of the start_ap flow 4953 * (in bss_info_changed), similarly for IBSS. 4954 */ 4955 *ret = 0; 4956 return true; 4957 case NL80211_IFTYPE_STATION: 4958 break; 4959 case NL80211_IFTYPE_MONITOR: 4960 /* always disable PS when a monitor interface is active */ 4961 mvmvif->ps_disabled = true; 4962 break; 4963 default: 4964 *ret = -EINVAL; 4965 return true; 4966 } 4967 return false; 4968 } 4969 4970 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4971 struct ieee80211_vif *vif, 4972 struct ieee80211_bss_conf *link_conf, 4973 struct ieee80211_chanctx_conf *ctx, 4974 bool switching_chanctx) 4975 { 4976 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4977 int ret; 4978 4979 if (WARN_ON(!link_conf)) 4980 return -EINVAL; 4981 4982 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 4983 switching_chanctx, &ret)) 4984 goto out; 4985 4986 ret = iwl_mvm_binding_add_vif(mvm, vif); 4987 if (ret) 4988 goto out; 4989 4990 /* 4991 * Power state must be updated before quotas, 4992 * otherwise fw will complain. 4993 */ 4994 iwl_mvm_power_update_mac(mvm); 4995 4996 /* Setting the quota at this stage is only required for monitor 4997 * interfaces. For the other types, the bss_info changed flow 4998 * will handle quota settings. 4999 */ 5000 if (vif->type == NL80211_IFTYPE_MONITOR) { 5001 mvmvif->monitor_active = true; 5002 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5003 if (ret) 5004 goto out_remove_binding; 5005 5006 ret = iwl_mvm_add_snif_sta(mvm, vif); 5007 if (ret) 5008 goto out_remove_binding; 5009 5010 } 5011 5012 /* Handle binding during CSA */ 5013 if (vif->type == NL80211_IFTYPE_AP) { 5014 iwl_mvm_update_quotas(mvm, false, NULL); 5015 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5016 } 5017 5018 if (vif->type == NL80211_IFTYPE_STATION) { 5019 if (!switching_chanctx) { 5020 mvmvif->csa_bcn_pending = false; 5021 goto out; 5022 } 5023 5024 mvmvif->csa_bcn_pending = true; 5025 5026 if (!fw_has_capa(&mvm->fw->ucode_capa, 5027 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5028 u32 duration = 5 * vif->bss_conf.beacon_int; 5029 5030 /* Protect the session to make sure we hear the first 5031 * beacon on the new channel. 5032 */ 5033 iwl_mvm_protect_session(mvm, vif, duration, duration, 5034 vif->bss_conf.beacon_int / 2, 5035 true); 5036 } 5037 5038 iwl_mvm_update_quotas(mvm, false, NULL); 5039 } 5040 5041 goto out; 5042 5043 out_remove_binding: 5044 iwl_mvm_binding_remove_vif(mvm, vif); 5045 iwl_mvm_power_update_mac(mvm); 5046 out: 5047 if (ret) 5048 mvmvif->deflink.phy_ctxt = NULL; 5049 return ret; 5050 } 5051 5052 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5053 struct ieee80211_vif *vif, 5054 struct ieee80211_bss_conf *link_conf, 5055 struct ieee80211_chanctx_conf *ctx) 5056 { 5057 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5058 int ret; 5059 5060 mutex_lock(&mvm->mutex); 5061 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5062 mutex_unlock(&mvm->mutex); 5063 5064 return ret; 5065 } 5066 5067 /* 5068 * This function executes the common part for MLD and non-MLD modes. 5069 * 5070 * Returns if chanctx unassign chanctx is done 5071 * (either on failure or success) 5072 */ 5073 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5074 struct ieee80211_vif *vif, 5075 bool switching_chanctx) 5076 { 5077 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5078 5079 lockdep_assert_held(&mvm->mutex); 5080 iwl_mvm_remove_time_event(mvm, mvmvif, 5081 &mvmvif->time_event_data); 5082 5083 switch (vif->type) { 5084 case NL80211_IFTYPE_ADHOC: 5085 return true; 5086 case NL80211_IFTYPE_MONITOR: 5087 mvmvif->monitor_active = false; 5088 mvmvif->ps_disabled = false; 5089 break; 5090 case NL80211_IFTYPE_AP: 5091 /* This part is triggered only during CSA */ 5092 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5093 return true; 5094 5095 mvmvif->csa_countdown = false; 5096 5097 /* Set CS bit on all the stations */ 5098 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5099 5100 /* Save blocked iface, the timeout is set on the next beacon */ 5101 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5102 5103 mvmvif->ap_ibss_active = false; 5104 break; 5105 default: 5106 break; 5107 } 5108 return false; 5109 } 5110 5111 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5112 struct ieee80211_vif *vif, 5113 struct ieee80211_bss_conf *link_conf, 5114 struct ieee80211_chanctx_conf *ctx, 5115 bool switching_chanctx) 5116 { 5117 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5118 struct ieee80211_vif *disabled_vif = NULL; 5119 5120 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5121 goto out; 5122 5123 if (vif->type == NL80211_IFTYPE_MONITOR) 5124 iwl_mvm_rm_snif_sta(mvm, vif); 5125 5126 5127 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5128 disabled_vif = vif; 5129 if (!fw_has_capa(&mvm->fw->ucode_capa, 5130 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5131 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5132 } 5133 5134 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5135 iwl_mvm_binding_remove_vif(mvm, vif); 5136 5137 out: 5138 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5139 switching_chanctx) 5140 return; 5141 mvmvif->deflink.phy_ctxt = NULL; 5142 iwl_mvm_power_update_mac(mvm); 5143 } 5144 5145 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5146 struct ieee80211_vif *vif, 5147 struct ieee80211_bss_conf *link_conf, 5148 struct ieee80211_chanctx_conf *ctx) 5149 { 5150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5151 5152 mutex_lock(&mvm->mutex); 5153 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5154 mutex_unlock(&mvm->mutex); 5155 } 5156 5157 static int 5158 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5159 struct ieee80211_vif_chanctx_switch *vifs, 5160 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5161 { 5162 int ret; 5163 5164 mutex_lock(&mvm->mutex); 5165 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5166 vifs[0].old_ctx, true); 5167 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5168 5169 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5170 if (ret) { 5171 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5172 goto out_reassign; 5173 } 5174 5175 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5176 vifs[0].new_ctx, true); 5177 if (ret) { 5178 IWL_ERR(mvm, 5179 "failed to assign new_ctx during channel switch\n"); 5180 goto out_remove; 5181 } 5182 5183 /* we don't support TDLS during DCM - can be caused by channel switch */ 5184 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5185 iwl_mvm_teardown_tdls_peers(mvm); 5186 5187 goto out; 5188 5189 out_remove: 5190 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5191 5192 out_reassign: 5193 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5194 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5195 goto out_restart; 5196 } 5197 5198 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5199 vifs[0].old_ctx, true)) { 5200 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5201 goto out_restart; 5202 } 5203 5204 goto out; 5205 5206 out_restart: 5207 /* things keep failing, better restart the hw */ 5208 iwl_mvm_nic_restart(mvm, false); 5209 5210 out: 5211 mutex_unlock(&mvm->mutex); 5212 5213 return ret; 5214 } 5215 5216 static int 5217 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5218 struct ieee80211_vif_chanctx_switch *vifs, 5219 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5220 { 5221 int ret; 5222 5223 mutex_lock(&mvm->mutex); 5224 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5225 vifs[0].old_ctx, true); 5226 5227 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5228 vifs[0].new_ctx, true); 5229 if (ret) { 5230 IWL_ERR(mvm, 5231 "failed to assign new_ctx during channel switch\n"); 5232 goto out_reassign; 5233 } 5234 5235 goto out; 5236 5237 out_reassign: 5238 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5239 vifs[0].old_ctx, true)) { 5240 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5241 goto out_restart; 5242 } 5243 5244 goto out; 5245 5246 out_restart: 5247 /* things keep failing, better restart the hw */ 5248 iwl_mvm_nic_restart(mvm, false); 5249 5250 out: 5251 mutex_unlock(&mvm->mutex); 5252 5253 return ret; 5254 } 5255 5256 /* Execute the common part for both MLD and non-MLD modes */ 5257 int 5258 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5259 struct ieee80211_vif_chanctx_switch *vifs, 5260 int n_vifs, 5261 enum ieee80211_chanctx_switch_mode mode, 5262 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5263 { 5264 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5265 int ret; 5266 5267 /* we only support a single-vif right now */ 5268 if (n_vifs > 1) 5269 return -EOPNOTSUPP; 5270 5271 switch (mode) { 5272 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5273 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5274 break; 5275 case CHANCTX_SWMODE_REASSIGN_VIF: 5276 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5277 break; 5278 default: 5279 ret = -EOPNOTSUPP; 5280 break; 5281 } 5282 5283 return ret; 5284 } 5285 5286 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5287 struct ieee80211_vif_chanctx_switch *vifs, 5288 int n_vifs, 5289 enum ieee80211_chanctx_switch_mode mode) 5290 { 5291 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5292 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5293 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5294 }; 5295 5296 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5297 } 5298 5299 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5300 { 5301 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5302 5303 return mvm->ibss_manager; 5304 } 5305 5306 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5307 bool set) 5308 { 5309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5310 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5311 5312 if (!mvm_sta || !mvm_sta->vif) { 5313 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5314 return -EINVAL; 5315 } 5316 5317 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5318 &mvm_sta->vif->bss_conf); 5319 } 5320 5321 #ifdef CONFIG_NL80211_TESTMODE 5322 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5323 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5324 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5325 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5326 }; 5327 5328 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5329 struct ieee80211_vif *vif, 5330 void *data, int len) 5331 { 5332 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5333 int err; 5334 u32 noa_duration; 5335 5336 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5337 iwl_mvm_tm_policy, NULL); 5338 if (err) 5339 return err; 5340 5341 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5342 return -EINVAL; 5343 5344 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5345 case IWL_MVM_TM_CMD_SET_NOA: 5346 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5347 !vif->bss_conf.enable_beacon || 5348 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5349 return -EINVAL; 5350 5351 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5352 if (noa_duration >= vif->bss_conf.beacon_int) 5353 return -EINVAL; 5354 5355 mvm->noa_duration = noa_duration; 5356 mvm->noa_vif = vif; 5357 5358 return iwl_mvm_update_quotas(mvm, true, NULL); 5359 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5360 /* must be associated client vif - ignore authorized */ 5361 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5362 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5363 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5364 return -EINVAL; 5365 5366 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5367 return iwl_mvm_enable_beacon_filter(mvm, vif); 5368 return iwl_mvm_disable_beacon_filter(mvm, vif); 5369 } 5370 5371 return -EOPNOTSUPP; 5372 } 5373 5374 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5375 struct ieee80211_vif *vif, 5376 void *data, int len) 5377 { 5378 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5379 int err; 5380 5381 mutex_lock(&mvm->mutex); 5382 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5383 mutex_unlock(&mvm->mutex); 5384 5385 return err; 5386 } 5387 #endif 5388 5389 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5390 struct ieee80211_channel_switch *chsw) 5391 { 5392 /* By implementing this operation, we prevent mac80211 from 5393 * starting its own channel switch timer, so that we can call 5394 * ieee80211_chswitch_done() ourselves at the right time 5395 * (which is when the absence time event starts). 5396 */ 5397 5398 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5399 "dummy channel switch op\n"); 5400 } 5401 5402 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5403 struct ieee80211_vif *vif, 5404 struct ieee80211_channel_switch *chsw) 5405 { 5406 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5407 struct iwl_chan_switch_te_cmd cmd = { 5408 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5409 mvmvif->color)), 5410 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5411 .tsf = cpu_to_le32(chsw->timestamp), 5412 .cs_count = chsw->count, 5413 .cs_mode = chsw->block_tx, 5414 }; 5415 5416 lockdep_assert_held(&mvm->mutex); 5417 5418 if (chsw->delay) 5419 cmd.cs_delayed_bcn_count = 5420 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5421 5422 return iwl_mvm_send_cmd_pdu(mvm, 5423 WIDE_ID(MAC_CONF_GROUP, 5424 CHANNEL_SWITCH_TIME_EVENT_CMD), 5425 0, sizeof(cmd), &cmd); 5426 } 5427 5428 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5429 struct ieee80211_vif *vif, 5430 struct ieee80211_channel_switch *chsw) 5431 { 5432 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5433 u32 apply_time; 5434 5435 /* Schedule the time event to a bit before beacon 1, 5436 * to make sure we're in the new channel when the 5437 * GO/AP arrives. In case count <= 1 immediately schedule the 5438 * TE (this might result with some packet loss or connection 5439 * loss). 5440 */ 5441 if (chsw->count <= 1) 5442 apply_time = 0; 5443 else 5444 apply_time = chsw->device_timestamp + 5445 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5446 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5447 5448 if (chsw->block_tx) 5449 iwl_mvm_csa_client_absent(mvm, vif); 5450 5451 if (mvmvif->bf_enabled) { 5452 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5453 5454 if (ret) 5455 return ret; 5456 } 5457 5458 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5459 apply_time); 5460 5461 return 0; 5462 } 5463 5464 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5465 { 5466 int i; 5467 5468 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5469 struct iwl_mvm_txq *mvmtxq = 5470 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5471 5472 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5473 } 5474 } 5475 5476 #define IWL_MAX_CSA_BLOCK_TX 1500 5477 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 5478 struct ieee80211_vif *vif, 5479 struct ieee80211_channel_switch *chsw) 5480 { 5481 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5482 struct ieee80211_vif *csa_vif; 5483 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5484 struct iwl_mvm_txq *mvmtxq; 5485 int ret; 5486 5487 mutex_lock(&mvm->mutex); 5488 5489 mvmvif->csa_failed = false; 5490 mvmvif->csa_blocks_tx = false; 5491 5492 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5493 chsw->chandef.center_freq1); 5494 5495 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5496 ieee80211_vif_to_wdev(vif), 5497 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5498 5499 switch (vif->type) { 5500 case NL80211_IFTYPE_AP: 5501 csa_vif = 5502 rcu_dereference_protected(mvm->csa_vif, 5503 lockdep_is_held(&mvm->mutex)); 5504 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5505 "Another CSA is already in progress")) { 5506 ret = -EBUSY; 5507 goto out_unlock; 5508 } 5509 5510 /* we still didn't unblock tx. prevent new CS meanwhile */ 5511 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5512 lockdep_is_held(&mvm->mutex))) { 5513 ret = -EBUSY; 5514 goto out_unlock; 5515 } 5516 5517 rcu_assign_pointer(mvm->csa_vif, vif); 5518 5519 if (WARN_ONCE(mvmvif->csa_countdown, 5520 "Previous CSA countdown didn't complete")) { 5521 ret = -EBUSY; 5522 goto out_unlock; 5523 } 5524 5525 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5526 5527 if (!chsw->block_tx) 5528 break; 5529 /* don't need blocking in driver otherwise - mac80211 will do */ 5530 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5531 break; 5532 5533 mvmvif->csa_blocks_tx = true; 5534 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5535 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5536 ieee80211_iterate_stations_atomic(mvm->hw, 5537 iwl_mvm_csa_block_txqs, 5538 NULL); 5539 break; 5540 case NL80211_IFTYPE_STATION: 5541 mvmvif->csa_blocks_tx = chsw->block_tx; 5542 5543 /* 5544 * In the new flow FW is in charge of timing the switch so there 5545 * is no need for all of this 5546 */ 5547 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5548 CHANNEL_SWITCH_ERROR_NOTIF, 5549 0)) 5550 break; 5551 5552 /* 5553 * We haven't configured the firmware to be associated yet since 5554 * we don't know the dtim period. In this case, the firmware can't 5555 * track the beacons. 5556 */ 5557 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) { 5558 ret = -EBUSY; 5559 goto out_unlock; 5560 } 5561 5562 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5563 hweight16(vif->valid_links) <= 1) 5564 schedule_delayed_work(&mvmvif->csa_work, 0); 5565 5566 if (chsw->block_tx) { 5567 /* 5568 * In case of undetermined / long time with immediate 5569 * quiet monitor status to gracefully disconnect 5570 */ 5571 if (!chsw->count || 5572 chsw->count * vif->bss_conf.beacon_int > 5573 IWL_MAX_CSA_BLOCK_TX) 5574 schedule_delayed_work(&mvmvif->csa_work, 5575 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5576 } 5577 5578 if (!fw_has_capa(&mvm->fw->ucode_capa, 5579 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5580 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5581 if (ret) 5582 goto out_unlock; 5583 } else { 5584 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5585 } 5586 5587 mvmvif->csa_count = chsw->count; 5588 mvmvif->csa_misbehave = false; 5589 break; 5590 default: 5591 break; 5592 } 5593 5594 mvmvif->ps_disabled = true; 5595 5596 ret = iwl_mvm_power_update_ps(mvm); 5597 if (ret) 5598 goto out_unlock; 5599 5600 /* we won't be on this channel any longer */ 5601 iwl_mvm_teardown_tdls_peers(mvm); 5602 5603 out_unlock: 5604 mutex_unlock(&mvm->mutex); 5605 5606 return ret; 5607 } 5608 5609 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5610 struct ieee80211_vif *vif, 5611 struct ieee80211_channel_switch *chsw) 5612 { 5613 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5614 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5615 struct iwl_chan_switch_te_cmd cmd = { 5616 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5617 mvmvif->color)), 5618 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5619 .tsf = cpu_to_le32(chsw->timestamp), 5620 .cs_count = chsw->count, 5621 .cs_mode = chsw->block_tx, 5622 }; 5623 5624 /* 5625 * In the new flow FW is in charge of timing the switch so there is no 5626 * need for all of this 5627 */ 5628 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5629 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5630 return; 5631 5632 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5633 return; 5634 5635 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5636 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5637 5638 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5639 if (mvmvif->csa_misbehave) { 5640 struct ieee80211_bss_conf *link_conf; 5641 5642 /* Second time, give up on this AP*/ 5643 5644 link_conf = wiphy_dereference(hw->wiphy, 5645 vif->link_conf[chsw->link_id]); 5646 if (WARN_ON(!link_conf)) 5647 return; 5648 5649 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5650 ieee80211_chswitch_done(vif, false, 0); 5651 mvmvif->csa_misbehave = false; 5652 return; 5653 } 5654 mvmvif->csa_misbehave = true; 5655 } 5656 mvmvif->csa_count = chsw->count; 5657 5658 mutex_lock(&mvm->mutex); 5659 if (mvmvif->csa_failed) 5660 goto out_unlock; 5661 5662 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5663 WIDE_ID(MAC_CONF_GROUP, 5664 CHANNEL_SWITCH_TIME_EVENT_CMD), 5665 0, sizeof(cmd), &cmd)); 5666 out_unlock: 5667 mutex_unlock(&mvm->mutex); 5668 } 5669 5670 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5671 { 5672 int i; 5673 5674 if (!iwl_mvm_has_new_tx_api(mvm)) { 5675 if (drop) { 5676 mutex_lock(&mvm->mutex); 5677 iwl_mvm_flush_tx_path(mvm, 5678 iwl_mvm_flushable_queues(mvm) & queues); 5679 mutex_unlock(&mvm->mutex); 5680 } else { 5681 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5682 } 5683 return; 5684 } 5685 5686 mutex_lock(&mvm->mutex); 5687 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5688 struct ieee80211_sta *sta; 5689 5690 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5691 lockdep_is_held(&mvm->mutex)); 5692 if (IS_ERR_OR_NULL(sta)) 5693 continue; 5694 5695 if (drop) 5696 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5697 else 5698 iwl_mvm_wait_sta_queues_empty(mvm, 5699 iwl_mvm_sta_from_mac80211(sta)); 5700 } 5701 mutex_unlock(&mvm->mutex); 5702 } 5703 5704 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5705 u32 queues, bool drop) 5706 { 5707 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5708 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5709 struct iwl_mvm_sta *mvmsta; 5710 struct ieee80211_sta *sta; 5711 bool ap_sta_done = false; 5712 int i; 5713 u32 msk = 0; 5714 5715 if (!vif) { 5716 iwl_mvm_flush_no_vif(mvm, queues, drop); 5717 return; 5718 } 5719 5720 if (!drop && hweight16(vif->active_links) <= 1) { 5721 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5722 struct ieee80211_bss_conf *link_conf; 5723 5724 link_conf = wiphy_dereference(hw->wiphy, 5725 vif->link_conf[link_id]); 5726 if (WARN_ON(!link_conf)) 5727 return; 5728 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5729 drop = true; 5730 } 5731 5732 /* Make sure we're done with the deferred traffic before flushing */ 5733 flush_work(&mvm->add_stream_wk); 5734 5735 mutex_lock(&mvm->mutex); 5736 5737 /* flush the AP-station and all TDLS peers */ 5738 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5739 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5740 lockdep_is_held(&mvm->mutex)); 5741 if (IS_ERR_OR_NULL(sta)) 5742 continue; 5743 5744 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5745 if (mvmsta->vif != vif) 5746 continue; 5747 5748 if (sta == mvmvif->ap_sta) { 5749 if (ap_sta_done) 5750 continue; 5751 ap_sta_done = true; 5752 } 5753 5754 if (drop) { 5755 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5756 mvmsta->tfd_queue_msk)) 5757 IWL_ERR(mvm, "flush request fail\n"); 5758 } else { 5759 if (iwl_mvm_has_new_tx_api(mvm)) 5760 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5761 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5762 msk |= mvmsta->tfd_queue_msk; 5763 } 5764 } 5765 5766 mutex_unlock(&mvm->mutex); 5767 5768 /* this can take a while, and we may need/want other operations 5769 * to succeed while doing this, so do it without the mutex held 5770 */ 5771 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5772 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5773 } 5774 5775 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5776 struct ieee80211_sta *sta) 5777 { 5778 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5779 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5780 struct iwl_mvm_link_sta *mvm_link_sta; 5781 struct ieee80211_link_sta *link_sta; 5782 int link_id; 5783 5784 mutex_lock(&mvm->mutex); 5785 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5786 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5787 lockdep_is_held(&mvm->mutex)); 5788 if (!mvm_link_sta) 5789 continue; 5790 5791 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5792 mvmsta->tfd_queue_msk)) 5793 IWL_ERR(mvm, "flush request fail\n"); 5794 } 5795 mutex_unlock(&mvm->mutex); 5796 } 5797 5798 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5799 struct survey_info *survey) 5800 { 5801 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5802 int ret = 0; 5803 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 5804 WIDE_ID(SYSTEM_GROUP, 5805 SYSTEM_STATISTICS_CMD), 5806 IWL_FW_CMD_VER_UNKNOWN); 5807 5808 memset(survey, 0, sizeof(*survey)); 5809 5810 /* only support global statistics right now */ 5811 if (idx != 0) 5812 return -ENOENT; 5813 5814 if (!fw_has_capa(&mvm->fw->ucode_capa, 5815 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5816 return -ENOENT; 5817 5818 mutex_lock(&mvm->mutex); 5819 5820 if (iwl_mvm_firmware_running(mvm)) { 5821 ret = iwl_mvm_request_statistics(mvm, false); 5822 if (ret) 5823 goto out; 5824 } 5825 5826 survey->filled = SURVEY_INFO_TIME_RX | 5827 SURVEY_INFO_TIME_TX; 5828 5829 survey->time_rx = mvm->accu_radio_stats.rx_time + 5830 mvm->radio_stats.rx_time; 5831 do_div(survey->time_rx, USEC_PER_MSEC); 5832 5833 survey->time_tx = mvm->accu_radio_stats.tx_time + 5834 mvm->radio_stats.tx_time; 5835 do_div(survey->time_tx, USEC_PER_MSEC); 5836 5837 /* the new fw api doesn't support the following fields */ 5838 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 5839 goto out; 5840 5841 survey->filled |= SURVEY_INFO_TIME | 5842 SURVEY_INFO_TIME_SCAN; 5843 survey->time = mvm->accu_radio_stats.on_time_rf + 5844 mvm->radio_stats.on_time_rf; 5845 do_div(survey->time, USEC_PER_MSEC); 5846 5847 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5848 mvm->radio_stats.on_time_scan; 5849 do_div(survey->time_scan, USEC_PER_MSEC); 5850 5851 out: 5852 mutex_unlock(&mvm->mutex); 5853 return ret; 5854 } 5855 5856 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5857 { 5858 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5859 u32 gi_ltf; 5860 5861 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5862 case RATE_MCS_CHAN_WIDTH_20: 5863 rinfo->bw = RATE_INFO_BW_20; 5864 break; 5865 case RATE_MCS_CHAN_WIDTH_40: 5866 rinfo->bw = RATE_INFO_BW_40; 5867 break; 5868 case RATE_MCS_CHAN_WIDTH_80: 5869 rinfo->bw = RATE_INFO_BW_80; 5870 break; 5871 case RATE_MCS_CHAN_WIDTH_160: 5872 rinfo->bw = RATE_INFO_BW_160; 5873 break; 5874 case RATE_MCS_CHAN_WIDTH_320: 5875 rinfo->bw = RATE_INFO_BW_320; 5876 break; 5877 } 5878 5879 if (format == RATE_MCS_CCK_MSK || 5880 format == RATE_MCS_LEGACY_OFDM_MSK) { 5881 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5882 5883 /* add the offset needed to get to the legacy ofdm indices */ 5884 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5885 rate += IWL_FIRST_OFDM_RATE; 5886 5887 switch (rate) { 5888 case IWL_RATE_1M_INDEX: 5889 rinfo->legacy = 10; 5890 break; 5891 case IWL_RATE_2M_INDEX: 5892 rinfo->legacy = 20; 5893 break; 5894 case IWL_RATE_5M_INDEX: 5895 rinfo->legacy = 55; 5896 break; 5897 case IWL_RATE_11M_INDEX: 5898 rinfo->legacy = 110; 5899 break; 5900 case IWL_RATE_6M_INDEX: 5901 rinfo->legacy = 60; 5902 break; 5903 case IWL_RATE_9M_INDEX: 5904 rinfo->legacy = 90; 5905 break; 5906 case IWL_RATE_12M_INDEX: 5907 rinfo->legacy = 120; 5908 break; 5909 case IWL_RATE_18M_INDEX: 5910 rinfo->legacy = 180; 5911 break; 5912 case IWL_RATE_24M_INDEX: 5913 rinfo->legacy = 240; 5914 break; 5915 case IWL_RATE_36M_INDEX: 5916 rinfo->legacy = 360; 5917 break; 5918 case IWL_RATE_48M_INDEX: 5919 rinfo->legacy = 480; 5920 break; 5921 case IWL_RATE_54M_INDEX: 5922 rinfo->legacy = 540; 5923 } 5924 return; 5925 } 5926 5927 rinfo->nss = u32_get_bits(rate_n_flags, 5928 RATE_MCS_NSS_MSK) + 1; 5929 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5930 RATE_HT_MCS_INDEX(rate_n_flags) : 5931 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5932 5933 if (rate_n_flags & RATE_MCS_SGI_MSK) 5934 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5935 5936 switch (format) { 5937 case RATE_MCS_EHT_MSK: 5938 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 5939 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 5940 break; 5941 case RATE_MCS_HE_MSK: 5942 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 5943 5944 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5945 5946 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5947 rinfo->bw = RATE_INFO_BW_HE_RU; 5948 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5949 } 5950 5951 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5952 case RATE_MCS_HE_TYPE_SU: 5953 case RATE_MCS_HE_TYPE_EXT_SU: 5954 if (gi_ltf == 0 || gi_ltf == 1) 5955 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5956 else if (gi_ltf == 2) 5957 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5958 else if (gi_ltf == 3) 5959 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5960 else 5961 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5962 break; 5963 case RATE_MCS_HE_TYPE_MU: 5964 if (gi_ltf == 0 || gi_ltf == 1) 5965 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5966 else if (gi_ltf == 2) 5967 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5968 else 5969 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5970 break; 5971 case RATE_MCS_HE_TYPE_TRIG: 5972 if (gi_ltf == 0 || gi_ltf == 1) 5973 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5974 else 5975 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5976 break; 5977 } 5978 5979 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5980 rinfo->he_dcm = 1; 5981 break; 5982 case RATE_MCS_HT_MSK: 5983 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5984 break; 5985 case RATE_MCS_VHT_MSK: 5986 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5987 break; 5988 } 5989 } 5990 5991 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5992 struct ieee80211_vif *vif, 5993 struct ieee80211_sta *sta, 5994 struct station_info *sinfo) 5995 { 5996 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5997 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5998 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5999 int i; 6000 6001 if (mvmsta->deflink.avg_energy) { 6002 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6003 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6004 } 6005 6006 if (iwl_mvm_has_tlc_offload(mvm)) { 6007 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6008 6009 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6010 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6011 } 6012 6013 /* if beacon filtering isn't on mac80211 does it anyway */ 6014 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6015 return; 6016 6017 if (!vif->cfg.assoc) 6018 return; 6019 6020 mutex_lock(&mvm->mutex); 6021 6022 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 6023 goto unlock; 6024 6025 if (iwl_mvm_request_statistics(mvm, false)) 6026 goto unlock; 6027 6028 sinfo->rx_beacon = 0; 6029 for_each_mvm_vif_valid_link(mvmvif, i) 6030 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6031 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6032 6033 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6034 if (mvmvif->deflink.beacon_stats.avg_signal) { 6035 /* firmware only reports a value after RXing a few beacons */ 6036 sinfo->rx_beacon_signal_avg = 6037 mvmvif->deflink.beacon_stats.avg_signal; 6038 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6039 } 6040 unlock: 6041 mutex_unlock(&mvm->mutex); 6042 } 6043 6044 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6045 struct ieee80211_vif *vif, 6046 const struct ieee80211_mlme_event *mlme) 6047 { 6048 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6049 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6050 iwl_dbg_tlv_time_point(&mvm->fwrt, 6051 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6052 NULL); 6053 return; 6054 } 6055 6056 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6057 iwl_dbg_tlv_time_point(&mvm->fwrt, 6058 IWL_FW_INI_TIME_POINT_DEASSOC, 6059 NULL); 6060 return; 6061 } 6062 } 6063 6064 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6065 struct ieee80211_vif *vif, 6066 const struct ieee80211_event *event) 6067 { 6068 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6069 do { \ 6070 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6071 break; \ 6072 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6073 } while (0) 6074 6075 struct iwl_fw_dbg_trigger_tlv *trig; 6076 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6077 6078 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6079 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6080 return; 6081 } 6082 6083 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6084 FW_DBG_TRIGGER_MLME); 6085 if (!trig) 6086 return; 6087 6088 trig_mlme = (void *)trig->data; 6089 6090 if (event->u.mlme.data == ASSOC_EVENT) { 6091 if (event->u.mlme.status == MLME_DENIED) 6092 CHECK_MLME_TRIGGER(stop_assoc_denied, 6093 "DENIED ASSOC: reason %d", 6094 event->u.mlme.reason); 6095 else if (event->u.mlme.status == MLME_TIMEOUT) 6096 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6097 "ASSOC TIMEOUT"); 6098 } else if (event->u.mlme.data == AUTH_EVENT) { 6099 if (event->u.mlme.status == MLME_DENIED) 6100 CHECK_MLME_TRIGGER(stop_auth_denied, 6101 "DENIED AUTH: reason %d", 6102 event->u.mlme.reason); 6103 else if (event->u.mlme.status == MLME_TIMEOUT) 6104 CHECK_MLME_TRIGGER(stop_auth_timeout, 6105 "AUTH TIMEOUT"); 6106 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6107 CHECK_MLME_TRIGGER(stop_rx_deauth, 6108 "DEAUTH RX %d", event->u.mlme.reason); 6109 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6110 CHECK_MLME_TRIGGER(stop_tx_deauth, 6111 "DEAUTH TX %d", event->u.mlme.reason); 6112 } 6113 #undef CHECK_MLME_TRIGGER 6114 } 6115 6116 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6117 struct ieee80211_vif *vif, 6118 const struct ieee80211_event *event) 6119 { 6120 struct iwl_fw_dbg_trigger_tlv *trig; 6121 struct iwl_fw_dbg_trigger_ba *ba_trig; 6122 6123 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6124 FW_DBG_TRIGGER_BA); 6125 if (!trig) 6126 return; 6127 6128 ba_trig = (void *)trig->data; 6129 6130 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6131 return; 6132 6133 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6134 "BAR received from %pM, tid %d, ssn %d", 6135 event->u.ba.sta->addr, event->u.ba.tid, 6136 event->u.ba.ssn); 6137 } 6138 6139 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6140 struct ieee80211_vif *vif, 6141 const struct ieee80211_event *event) 6142 { 6143 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6144 6145 switch (event->type) { 6146 case MLME_EVENT: 6147 iwl_mvm_event_mlme_callback(mvm, vif, event); 6148 break; 6149 case BAR_RX_EVENT: 6150 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6151 break; 6152 case BA_FRAME_TIMEOUT: 6153 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6154 event->u.ba.tid); 6155 break; 6156 default: 6157 break; 6158 } 6159 } 6160 6161 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6162 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6163 enum iwl_mvm_rxq_notif_type type, 6164 bool sync, 6165 const void *data, u32 size) 6166 { 6167 struct { 6168 struct iwl_rxq_sync_cmd cmd; 6169 struct iwl_mvm_internal_rxq_notif notif; 6170 } __packed cmd = { 6171 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6172 .cmd.count = 6173 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6174 size), 6175 .notif.type = type, 6176 .notif.sync = sync, 6177 }; 6178 struct iwl_host_cmd hcmd = { 6179 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6180 .data[0] = &cmd, 6181 .len[0] = sizeof(cmd), 6182 .data[1] = data, 6183 .len[1] = size, 6184 .flags = sync ? 0 : CMD_ASYNC, 6185 }; 6186 int ret; 6187 6188 /* size must be a multiple of DWORD */ 6189 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6190 return; 6191 6192 if (!iwl_mvm_has_new_rx_api(mvm)) 6193 return; 6194 6195 if (sync) { 6196 cmd.notif.cookie = mvm->queue_sync_cookie; 6197 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6198 } 6199 6200 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6201 if (ret) { 6202 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6203 goto out; 6204 } 6205 6206 if (sync) { 6207 lockdep_assert_held(&mvm->mutex); 6208 ret = wait_event_timeout(mvm->rx_sync_waitq, 6209 READ_ONCE(mvm->queue_sync_state) == 0 || 6210 iwl_mvm_is_radio_hw_killed(mvm), 6211 SYNC_RX_QUEUE_TIMEOUT); 6212 WARN_ONCE(!ret && !iwl_mvm_is_radio_hw_killed(mvm), 6213 "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6214 mvm->queue_sync_state, 6215 mvm->queue_sync_cookie); 6216 } 6217 6218 out: 6219 if (sync) { 6220 mvm->queue_sync_state = 0; 6221 mvm->queue_sync_cookie++; 6222 } 6223 } 6224 6225 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6226 { 6227 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6228 6229 mutex_lock(&mvm->mutex); 6230 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6231 mutex_unlock(&mvm->mutex); 6232 } 6233 6234 int 6235 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6236 struct ieee80211_vif *vif, 6237 struct cfg80211_ftm_responder_stats *stats) 6238 { 6239 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6240 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6241 6242 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6243 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6244 return -EINVAL; 6245 6246 mutex_lock(&mvm->mutex); 6247 *stats = mvm->ftm_resp_stats; 6248 mutex_unlock(&mvm->mutex); 6249 6250 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6251 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6252 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6253 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6254 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6255 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6256 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6257 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6258 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6259 6260 return 0; 6261 } 6262 6263 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6264 struct cfg80211_pmsr_request *request) 6265 { 6266 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6267 int ret; 6268 6269 mutex_lock(&mvm->mutex); 6270 ret = iwl_mvm_ftm_start(mvm, vif, request); 6271 mutex_unlock(&mvm->mutex); 6272 6273 return ret; 6274 } 6275 6276 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6277 struct cfg80211_pmsr_request *request) 6278 { 6279 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6280 6281 mutex_lock(&mvm->mutex); 6282 iwl_mvm_ftm_abort(mvm, request); 6283 mutex_unlock(&mvm->mutex); 6284 } 6285 6286 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6287 { 6288 u8 protocol = ip_hdr(skb)->protocol; 6289 6290 if (!IS_ENABLED(CONFIG_INET)) 6291 return false; 6292 6293 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6294 } 6295 6296 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6297 struct sk_buff *head, 6298 struct sk_buff *skb) 6299 { 6300 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6301 6302 /* For now don't aggregate IPv6 in AMSDU */ 6303 if (skb->protocol != htons(ETH_P_IP)) 6304 return false; 6305 6306 if (!iwl_mvm_is_csum_supported(mvm)) 6307 return true; 6308 6309 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6310 } 6311 6312 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6313 struct ieee80211_vif *vif, 6314 struct cfg80211_set_hw_timestamp *hwts) 6315 { 6316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6317 u32 protocols = 0; 6318 int ret; 6319 6320 /* HW timestamping is only supported for a specific station */ 6321 if (!hwts->macaddr) 6322 return -EOPNOTSUPP; 6323 6324 if (hwts->enable) 6325 protocols = 6326 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6327 6328 mutex_lock(&mvm->mutex); 6329 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6330 mutex_unlock(&mvm->mutex); 6331 6332 return ret; 6333 } 6334 6335 const struct ieee80211_ops iwl_mvm_hw_ops = { 6336 .tx = iwl_mvm_mac_tx, 6337 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6338 .ampdu_action = iwl_mvm_mac_ampdu_action, 6339 .get_antenna = iwl_mvm_op_get_antenna, 6340 .set_antenna = iwl_mvm_op_set_antenna, 6341 .start = iwl_mvm_mac_start, 6342 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6343 .stop = iwl_mvm_mac_stop, 6344 .add_interface = iwl_mvm_mac_add_interface, 6345 .remove_interface = iwl_mvm_mac_remove_interface, 6346 .config = iwl_mvm_mac_config, 6347 .prepare_multicast = iwl_mvm_prepare_multicast, 6348 .configure_filter = iwl_mvm_configure_filter, 6349 .config_iface_filter = iwl_mvm_config_iface_filter, 6350 .bss_info_changed = iwl_mvm_bss_info_changed, 6351 .hw_scan = iwl_mvm_mac_hw_scan, 6352 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6353 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6354 .sta_state = iwl_mvm_mac_sta_state, 6355 .sta_notify = iwl_mvm_mac_sta_notify, 6356 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6357 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6358 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6359 .sta_rc_update = iwl_mvm_sta_rc_update, 6360 .conf_tx = iwl_mvm_mac_conf_tx, 6361 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6362 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6363 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6364 .flush = iwl_mvm_mac_flush, 6365 .flush_sta = iwl_mvm_mac_flush_sta, 6366 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6367 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6368 .set_key = iwl_mvm_mac_set_key, 6369 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6370 .remain_on_channel = iwl_mvm_roc, 6371 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6372 .add_chanctx = iwl_mvm_add_chanctx, 6373 .remove_chanctx = iwl_mvm_remove_chanctx, 6374 .change_chanctx = iwl_mvm_change_chanctx, 6375 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6376 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6377 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6378 6379 .start_ap = iwl_mvm_start_ap, 6380 .stop_ap = iwl_mvm_stop_ap, 6381 .join_ibss = iwl_mvm_start_ibss, 6382 .leave_ibss = iwl_mvm_stop_ibss, 6383 6384 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6385 6386 .set_tim = iwl_mvm_set_tim, 6387 6388 .channel_switch = iwl_mvm_channel_switch, 6389 .pre_channel_switch = iwl_mvm_pre_channel_switch, 6390 .post_channel_switch = iwl_mvm_post_channel_switch, 6391 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6392 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6393 6394 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6395 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6396 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6397 6398 .event_callback = iwl_mvm_mac_event_callback, 6399 6400 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6401 6402 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6403 6404 #ifdef CONFIG_PM_SLEEP 6405 /* look at d3.c */ 6406 .suspend = iwl_mvm_suspend, 6407 .resume = iwl_mvm_resume, 6408 .set_wakeup = iwl_mvm_set_wakeup, 6409 .set_rekey_data = iwl_mvm_set_rekey_data, 6410 #if IS_ENABLED(CONFIG_IPV6) 6411 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6412 #endif 6413 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6414 #endif 6415 .get_survey = iwl_mvm_mac_get_survey, 6416 .sta_statistics = iwl_mvm_mac_sta_statistics, 6417 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6418 .start_pmsr = iwl_mvm_start_pmsr, 6419 .abort_pmsr = iwl_mvm_abort_pmsr, 6420 6421 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6422 #ifdef CONFIG_IWLWIFI_DEBUGFS 6423 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6424 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6425 #endif 6426 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6427 }; 6428