1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2025 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/fips.h> 9 #include <linux/slab.h> 10 #include <linux/skbuff.h> 11 #include <linux/netdevice.h> 12 #include <linux/etherdevice.h> 13 #include <linux/ip.h> 14 #include <linux/if_arp.h> 15 #include <linux/time.h> 16 #if defined(__FreeBSD__) 17 #include <linux/math64.h> 18 #endif 19 #include <net/mac80211.h> 20 #include <net/ieee80211_radiotap.h> 21 #include <net/tcp.h> 22 #if defined(__FreeBSD__) 23 #include <linux/udp.h> 24 #endif 25 26 #include "iwl-drv.h" 27 #include "iwl-op-mode.h" 28 #include "iwl-io.h" 29 #include "mvm.h" 30 #include "sta.h" 31 #include "time-event.h" 32 #include "iwl-nvm-utils.h" 33 #include "iwl-phy-db.h" 34 #ifdef CONFIG_NL80211_TESTMODE 35 #include "testmode.h" 36 #endif 37 #include "fw/error-dump.h" 38 #include "iwl-prph.h" 39 #include "iwl-nvm-parse.h" 40 #include "time-sync.h" 41 42 #define IWL_MVM_LIMITS(ap) \ 43 { \ 44 .max = 1, \ 45 .types = BIT(NL80211_IFTYPE_STATION), \ 46 }, \ 47 { \ 48 .max = 1, \ 49 .types = ap | \ 50 BIT(NL80211_IFTYPE_P2P_CLIENT) | \ 51 BIT(NL80211_IFTYPE_P2P_GO), \ 52 }, \ 53 { \ 54 .max = 1, \ 55 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), \ 56 } 57 58 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 59 IWL_MVM_LIMITS(0) 60 }; 61 62 static const struct ieee80211_iface_limit iwl_mvm_limits_ap[] = { 63 IWL_MVM_LIMITS(BIT(NL80211_IFTYPE_AP)) 64 }; 65 66 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 67 { 68 .num_different_channels = 2, 69 .max_interfaces = 3, 70 .limits = iwl_mvm_limits, 71 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 72 }, 73 { 74 .num_different_channels = 1, 75 .max_interfaces = 3, 76 .limits = iwl_mvm_limits_ap, 77 .n_limits = ARRAY_SIZE(iwl_mvm_limits_ap), 78 }, 79 }; 80 81 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 82 .max_peers = IWL_TOF_MAX_APS, 83 .report_ap_tsf = 1, 84 .randomize_mac_addr = 1, 85 86 .ftm = { 87 .supported = 1, 88 .asap = 1, 89 .non_asap = 1, 90 .request_lci = 1, 91 .request_civicloc = 1, 92 .trigger_based = 1, 93 .non_trigger_based = 1, 94 .max_bursts_exponent = -1, /* all supported */ 95 .max_ftms_per_burst = 0, /* no limits */ 96 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 97 BIT(NL80211_CHAN_WIDTH_20) | 98 BIT(NL80211_CHAN_WIDTH_40) | 99 BIT(NL80211_CHAN_WIDTH_80) | 100 BIT(NL80211_CHAN_WIDTH_160), 101 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 102 BIT(NL80211_PREAMBLE_HT) | 103 BIT(NL80211_PREAMBLE_VHT) | 104 BIT(NL80211_PREAMBLE_HE), 105 }, 106 }; 107 108 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 109 enum set_key_cmd cmd, 110 struct ieee80211_vif *vif, 111 struct ieee80211_sta *sta, 112 struct ieee80211_key_conf *key); 113 114 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 115 { 116 int i; 117 118 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 119 for (i = 0; i < NUM_PHY_CTX; i++) { 120 mvm->phy_ctxts[i].id = i; 121 mvm->phy_ctxts[i].ref = 0; 122 } 123 } 124 125 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 126 const char *alpha2, 127 enum iwl_mcc_source src_id, 128 bool *changed) 129 { 130 struct ieee80211_regdomain *regd = NULL; 131 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 132 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 133 struct iwl_mcc_update_resp_v8 *resp; 134 u8 resp_ver; 135 136 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 137 138 lockdep_assert_held(&mvm->mutex); 139 140 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 141 if (IS_ERR_OR_NULL(resp)) { 142 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 143 PTR_ERR_OR_ZERO(resp)); 144 resp = NULL; 145 goto out; 146 } 147 148 if (changed) { 149 u32 status = le32_to_cpu(resp->status); 150 151 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 152 status == MCC_RESP_ILLEGAL); 153 } 154 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 155 MCC_UPDATE_CMD, 0); 156 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 157 158 regd = iwl_parse_nvm_mcc_info(mvm->trans, 159 __le32_to_cpu(resp->n_channels), 160 resp->channels, 161 __le16_to_cpu(resp->mcc), 162 __le16_to_cpu(resp->geo_info), 163 le32_to_cpu(resp->cap), resp_ver); 164 /* Store the return source id */ 165 src_id = resp->source_id; 166 if (IS_ERR_OR_NULL(regd)) { 167 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 168 PTR_ERR_OR_ZERO(regd)); 169 goto out; 170 } 171 172 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 173 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 174 mvm->lar_regdom_set = true; 175 mvm->mcc_src = src_id; 176 177 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 178 179 out: 180 kfree(resp); 181 return regd; 182 } 183 184 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 185 { 186 bool changed; 187 struct ieee80211_regdomain *regd; 188 189 if (!iwl_mvm_is_lar_supported(mvm)) 190 return; 191 192 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 193 if (!IS_ERR_OR_NULL(regd)) { 194 /* only update the regulatory core if changed */ 195 if (changed) 196 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 197 198 kfree(regd); 199 } 200 } 201 202 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 203 bool *changed) 204 { 205 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 206 iwl_mvm_is_wifi_mcc_supported(mvm) ? 207 MCC_SOURCE_GET_CURRENT : 208 MCC_SOURCE_OLD_FW, changed); 209 } 210 211 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 212 { 213 enum iwl_mcc_source used_src; 214 struct ieee80211_regdomain *regd; 215 int ret; 216 bool changed; 217 const struct ieee80211_regdomain *r = 218 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 219 220 if (!r) 221 return -ENOENT; 222 223 /* save the last source in case we overwrite it below */ 224 used_src = mvm->mcc_src; 225 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 226 /* Notify the firmware we support wifi location updates */ 227 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 228 if (!IS_ERR_OR_NULL(regd)) 229 kfree(regd); 230 } 231 232 /* Now set our last stored MCC and source */ 233 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 234 &changed); 235 if (IS_ERR_OR_NULL(regd)) 236 return -EIO; 237 238 /* update cfg80211 if the regdomain was changed or the caller explicitly 239 * asked to update regdomain 240 */ 241 if (changed || force_regd_sync) 242 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 243 else 244 ret = 0; 245 246 kfree(regd); 247 return ret; 248 } 249 250 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 251 static const u8 he_if_types_ext_capa_sta[] = { 252 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 253 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 254 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 255 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 256 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 257 }; 258 259 static const u8 tm_if_types_ext_capa_sta[] = { 260 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 261 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 262 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 263 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 264 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 265 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 266 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 267 }; 268 269 /* Additional interface types for which extended capabilities are 270 * specified separately 271 */ 272 273 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 274 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 275 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 276 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 277 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 278 #define IWL_MVM_MLD_CAPA_OPS (FIELD_PREP_CONST( \ 279 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \ 280 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) | \ 281 IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT) 282 283 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 284 { 285 .iftype = NL80211_IFTYPE_STATION, 286 .extended_capabilities = he_if_types_ext_capa_sta, 287 .extended_capabilities_mask = he_if_types_ext_capa_sta, 288 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 289 /* relevant only if EHT is supported */ 290 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 291 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 292 }, 293 { 294 .iftype = NL80211_IFTYPE_STATION, 295 .extended_capabilities = tm_if_types_ext_capa_sta, 296 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 297 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 298 /* relevant only if EHT is supported */ 299 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 300 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 301 }, 302 }; 303 304 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, int radio_idx, 305 u32 *tx_ant, u32 *rx_ant) 306 { 307 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 308 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 309 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 310 return 0; 311 } 312 313 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, int radio_idx, u32 tx_ant, 314 u32 rx_ant) 315 { 316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 317 318 /* This has been tested on those devices only */ 319 if (mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 320 mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_22000 && 321 mvm->trans->mac_cfg->device_family != IWL_DEVICE_FAMILY_AX210) 322 return -EOPNOTSUPP; 323 324 if (!mvm->nvm_data) 325 return -EBUSY; 326 327 /* mac80211 ensures the device is not started, 328 * so the firmware cannot be running 329 */ 330 331 mvm->set_tx_ant = tx_ant; 332 mvm->set_rx_ant = rx_ant; 333 334 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 335 336 return 0; 337 } 338 339 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 340 { 341 struct ieee80211_hw *hw = mvm->hw; 342 int num_mac, ret, i; 343 static const u32 mvm_ciphers[] = { 344 WLAN_CIPHER_SUITE_WEP40, 345 WLAN_CIPHER_SUITE_WEP104, 346 WLAN_CIPHER_SUITE_TKIP, 347 WLAN_CIPHER_SUITE_CCMP, 348 }; 349 #ifdef CONFIG_PM_SLEEP 350 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 351 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 352 #endif 353 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 354 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 355 356 /* Tell mac80211 our characteristics */ 357 ieee80211_hw_set(hw, SIGNAL_DBM); 358 ieee80211_hw_set(hw, SPECTRUM_MGMT); 359 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 360 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 361 ieee80211_hw_set(hw, SUPPORTS_PS); 362 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 363 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 364 ieee80211_hw_set(hw, CONNECTION_MONITOR); 365 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 366 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 367 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 368 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 369 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 370 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 371 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 372 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 373 374 /* Set this early since we need to have it for the check below */ 375 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 376 !iwlwifi_mod_params.disable_11ax && 377 !iwlwifi_mod_params.disable_11be) { 378 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 379 /* we handle this already earlier, but need it for MLO */ 380 ieee80211_hw_set(hw, HANDLES_QUIET_CSA); 381 } 382 383 /* With MLD FW API, it tracks timing by itself, 384 * no need for any timing from the host 385 */ 386 if (!mvm->mld_api_is_used) 387 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 388 389 /* 390 * On older devices, enabling TX A-MSDU occasionally leads to 391 * something getting messed up, the command read from the FIFO 392 * gets out of sync and isn't a TX command, so that we have an 393 * assert EDC. 394 * 395 * It's not clear where the bug is, but since we didn't used to 396 * support A-MSDU until moving the mac80211 iTXQs, just leave it 397 * for older devices. We also don't see this issue on any newer 398 * devices. 399 */ 400 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 401 ieee80211_hw_set(hw, TX_AMSDU); 402 ieee80211_hw_set(hw, TX_FRAG_LIST); 403 404 if (iwl_mvm_has_tlc_offload(mvm)) { 405 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 406 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 407 } 408 409 /* We want to use the mac80211's reorder buffer for 9000 */ 410 if (iwl_mvm_has_new_rx_api(mvm) && 411 mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_9000) 412 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 413 414 if (fw_has_capa(&mvm->fw->ucode_capa, 415 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 416 ieee80211_hw_set(hw, AP_LINK_PS); 417 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 418 /* 419 * we absolutely need this for the new TX API since that comes 420 * with many more queues than the current code can deal with 421 * for station powersave 422 */ 423 return -EINVAL; 424 } 425 426 if (mvm->trans->info.num_rxqs > 1) 427 ieee80211_hw_set(hw, USES_RSS); 428 429 if (mvm->trans->info.max_skb_frags) 430 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 431 432 hw->queues = IEEE80211_NUM_ACS; 433 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 434 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 435 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 436 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 437 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 438 439 hw->radiotap_timestamp.units_pos = 440 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 441 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 442 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 443 hw->radiotap_timestamp.accuracy = 22; 444 445 if (!iwl_mvm_has_tlc_offload(mvm)) 446 hw->rate_control_algorithm = RS_NAME; 447 448 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 449 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 450 hw->max_tx_fragments = mvm->trans->info.max_skb_frags; 451 452 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 453 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 454 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 455 hw->wiphy->cipher_suites = mvm->ciphers; 456 457 if (iwl_mvm_has_new_rx_api(mvm)) { 458 mvm->ciphers[hw->wiphy->n_cipher_suites] = 459 WLAN_CIPHER_SUITE_GCMP; 460 hw->wiphy->n_cipher_suites++; 461 mvm->ciphers[hw->wiphy->n_cipher_suites] = 462 WLAN_CIPHER_SUITE_GCMP_256; 463 hw->wiphy->n_cipher_suites++; 464 } 465 466 if (iwlwifi_mod_params.swcrypto) 467 IWL_ERR(mvm, 468 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 469 if (!iwlwifi_mod_params.bt_coex_active) 470 IWL_ERR(mvm, 471 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 472 473 if (!fips_enabled) 474 ieee80211_hw_set(hw, MFP_CAPABLE); 475 476 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 477 hw->wiphy->n_cipher_suites++; 478 if (iwl_mvm_has_new_rx_api(mvm)) { 479 mvm->ciphers[hw->wiphy->n_cipher_suites] = 480 WLAN_CIPHER_SUITE_BIP_GMAC_128; 481 hw->wiphy->n_cipher_suites++; 482 mvm->ciphers[hw->wiphy->n_cipher_suites] = 483 WLAN_CIPHER_SUITE_BIP_GMAC_256; 484 hw->wiphy->n_cipher_suites++; 485 } 486 487 wiphy_ext_feature_set(hw->wiphy, 488 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 489 wiphy_ext_feature_set(hw->wiphy, 490 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 491 492 if (fw_has_capa(&mvm->fw->ucode_capa, 493 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 494 wiphy_ext_feature_set(hw->wiphy, 495 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 496 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 497 } 498 499 /* 500 * beacon protection must be handled by firmware, 501 * so cannot be done with fips_enabled 502 */ 503 if (!fips_enabled && sec_key_ver && 504 fw_has_capa(&mvm->fw->ucode_capa, 505 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 506 wiphy_ext_feature_set(hw->wiphy, 507 NL80211_EXT_FEATURE_BEACON_PROTECTION); 508 else if (!fips_enabled && 509 fw_has_capa(&mvm->fw->ucode_capa, 510 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 511 wiphy_ext_feature_set(hw->wiphy, 512 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 513 514 if (fw_has_capa(&mvm->fw->ucode_capa, 515 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 516 hw->wiphy->hw_timestamp_max_peers = 1; 517 518 if (fw_has_capa(&mvm->fw->ucode_capa, 519 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 520 wiphy_ext_feature_set(hw->wiphy, 521 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 522 523 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 524 hw->wiphy->features |= 525 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 526 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 527 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 528 529 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 530 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 531 hw->chanctx_data_size = sizeof(u16); 532 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 533 534 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 535 BIT(NL80211_IFTYPE_P2P_CLIENT) | 536 BIT(NL80211_IFTYPE_AP) | 537 BIT(NL80211_IFTYPE_P2P_GO) | 538 BIT(NL80211_IFTYPE_P2P_DEVICE) | 539 BIT(NL80211_IFTYPE_ADHOC); 540 541 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 542 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 543 544 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 545 * the hw, preventing us to control which key(id) to use per MPDU. 546 * Till that's fixed we can't use Extended Key ID for the newer cards. 547 */ 548 if (!iwl_mvm_has_new_tx_api(mvm)) 549 wiphy_ext_feature_set(hw->wiphy, 550 NL80211_EXT_FEATURE_EXT_KEY_ID); 551 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 552 553 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 554 if (iwl_mvm_is_lar_supported(mvm)) 555 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 556 else 557 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 558 REGULATORY_DISABLE_BEACON_HINTS; 559 560 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 561 wiphy_ext_feature_set(hw->wiphy, 562 NL80211_EXT_FEATURE_DFS_CONCURRENT); 563 564 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 565 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 566 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 567 568 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 569 hw->wiphy->n_iface_combinations = 570 ARRAY_SIZE(iwl_mvm_iface_combinations); 571 572 hw->wiphy->max_remain_on_channel_duration = 10000; 573 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 574 575 /* Extract MAC address */ 576 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 577 hw->wiphy->addresses = mvm->addresses; 578 hw->wiphy->n_addresses = 1; 579 580 /* Extract additional MAC addresses if available */ 581 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 582 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 583 584 for (i = 1; i < num_mac; i++) { 585 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 586 ETH_ALEN); 587 mvm->addresses[i].addr[5]++; 588 hw->wiphy->n_addresses++; 589 } 590 591 iwl_mvm_reset_phy_ctxts(mvm); 592 593 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 594 595 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 596 597 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 598 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 599 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 600 601 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 602 mvm->max_scans = IWL_MAX_UMAC_SCANS; 603 else 604 mvm->max_scans = IWL_MAX_LMAC_SCANS; 605 606 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 607 hw->wiphy->bands[NL80211_BAND_2GHZ] = 608 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 609 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 610 hw->wiphy->bands[NL80211_BAND_5GHZ] = 611 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 612 613 if (fw_has_capa(&mvm->fw->ucode_capa, 614 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 615 fw_has_api(&mvm->fw->ucode_capa, 616 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 617 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 618 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 619 } 620 if (fw_has_capa(&mvm->fw->ucode_capa, 621 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 622 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 623 hw->wiphy->bands[NL80211_BAND_6GHZ] = 624 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 625 626 hw->wiphy->hw_version = mvm->trans->info.hw_id; 627 628 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 629 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 630 else 631 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 632 633 hw->wiphy->max_sched_scan_reqs = 1; 634 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 635 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 636 /* we create the 802.11 header and zero length SSID IE. */ 637 hw->wiphy->max_sched_scan_ie_len = 638 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 639 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 640 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 641 642 /* 643 * the firmware uses u8 for num of iterations, but 0xff is saved for 644 * infinite loop, so the maximum number of iterations is actually 254. 645 */ 646 hw->wiphy->max_sched_scan_plan_iterations = 254; 647 648 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 649 NL80211_FEATURE_LOW_PRIORITY_SCAN | 650 NL80211_FEATURE_P2P_GO_OPPPS | 651 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 652 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 653 654 /* when firmware supports RLC/SMPS offload, do not set these 655 * driver features, since it's no longer supported by driver. 656 */ 657 if (!iwl_mvm_has_rlc_offload(mvm)) 658 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS | 659 NL80211_FEATURE_DYNAMIC_SMPS; 660 661 if (fw_has_capa(&mvm->fw->ucode_capa, 662 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 663 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 664 if (fw_has_capa(&mvm->fw->ucode_capa, 665 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 666 hw->wiphy->features |= NL80211_FEATURE_QUIET; 667 668 if (fw_has_capa(&mvm->fw->ucode_capa, 669 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 670 hw->wiphy->features |= 671 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 672 673 if (fw_has_capa(&mvm->fw->ucode_capa, 674 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 675 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 676 677 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 678 IWL_FW_CMD_VER_UNKNOWN) >= 3) 679 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 680 681 if (fw_has_api(&mvm->fw->ucode_capa, 682 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 683 wiphy_ext_feature_set(hw->wiphy, 684 NL80211_EXT_FEATURE_SCAN_START_TIME); 685 wiphy_ext_feature_set(hw->wiphy, 686 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 687 } 688 689 if (iwl_mvm_is_oce_supported(mvm)) { 690 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 691 692 wiphy_ext_feature_set(hw->wiphy, 693 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 694 wiphy_ext_feature_set(hw->wiphy, 695 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 696 wiphy_ext_feature_set(hw->wiphy, 697 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 698 699 /* Old firmware also supports probe deferral and suppression */ 700 if (scan_ver < 15) 701 wiphy_ext_feature_set(hw->wiphy, 702 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 703 } 704 705 hw->wiphy->iftype_ext_capab = NULL; 706 hw->wiphy->num_iftype_ext_capab = 0; 707 708 if (mvm->nvm_data->sku_cap_11ax_enable && 709 !iwlwifi_mod_params.disable_11ax) { 710 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 711 hw->wiphy->num_iftype_ext_capab = 712 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 713 714 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 715 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 716 } 717 718 if (iwl_fw_lookup_cmd_ver(mvm->fw, 719 WIDE_ID(DATA_PATH_GROUP, 720 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 721 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 722 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 723 724 if (!hw->wiphy->iftype_ext_capab) { 725 hw->wiphy->num_iftype_ext_capab = 1; 726 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 727 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 728 } else { 729 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 730 } 731 } 732 733 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 734 TOF_RANGE_REQ_CMD), 735 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 736 wiphy_ext_feature_set(hw->wiphy, 737 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 738 739 if (fw_has_capa(&mvm->fw->ucode_capa, 740 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 741 wiphy_ext_feature_set(hw->wiphy, 742 NL80211_EXT_FEATURE_SECURE_LTF); 743 } 744 745 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 746 747 #ifdef CONFIG_PM_SLEEP 748 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 749 device_can_wakeup(mvm->trans->dev) && !fips_enabled) { 750 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 751 WIPHY_WOWLAN_DISCONNECT | 752 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 753 WIPHY_WOWLAN_RFKILL_RELEASE | 754 WIPHY_WOWLAN_NET_DETECT; 755 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 756 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 757 WIPHY_WOWLAN_4WAY_HANDSHAKE; 758 759 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 760 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 761 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 762 mvm->wowlan.max_nd_match_sets = 763 iwl_umac_scan_get_max_profiles(mvm->fw); 764 hw->wiphy->wowlan = &mvm->wowlan; 765 } 766 #endif 767 768 ret = iwl_mvm_leds_init(mvm); 769 if (ret) 770 return ret; 771 772 if (fw_has_capa(&mvm->fw->ucode_capa, 773 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 774 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 775 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 776 ieee80211_hw_set(hw, TDLS_WIDER_BW); 777 } 778 779 if (fw_has_capa(&mvm->fw->ucode_capa, 780 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 781 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 782 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 783 } 784 785 hw->netdev_features |= mvm->trans->mac_cfg->base->features; 786 if (!iwl_mvm_is_csum_supported(mvm)) 787 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 788 789 if (mvm->cfg->vht_mu_mimo_supported) 790 wiphy_ext_feature_set(hw->wiphy, 791 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 792 793 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 794 wiphy_ext_feature_set(hw->wiphy, 795 NL80211_EXT_FEATURE_PROTECTED_TWT); 796 797 iwl_mvm_vendor_cmds_register(mvm); 798 799 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 800 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 801 802 ret = ieee80211_register_hw(mvm->hw); 803 if (ret) { 804 iwl_mvm_leds_exit(mvm); 805 } 806 807 return ret; 808 } 809 810 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 811 struct ieee80211_sta *sta) 812 { 813 if (likely(sta)) { 814 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 815 return; 816 } else { 817 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 818 return; 819 } 820 821 ieee80211_free_txskb(mvm->hw, skb); 822 } 823 824 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 825 struct ieee80211_tx_control *control, struct sk_buff *skb) 826 { 827 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 828 struct ieee80211_sta *sta = control->sta; 829 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 830 struct ieee80211_hdr *hdr = (void *)skb->data; 831 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 832 IEEE80211_TX_CTL_TX_OFFCHAN; 833 u32 link_id = u32_get_bits(info->control.flags, 834 IEEE80211_TX_CTRL_MLO_LINK); 835 struct ieee80211_sta *tmp_sta = sta; 836 837 if (iwl_mvm_is_radio_killed(mvm)) { 838 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 839 goto drop; 840 } 841 842 if (offchannel && 843 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) && 844 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 845 goto drop; 846 847 /* 848 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 849 * so we treat the others as broadcast 850 */ 851 if (ieee80211_is_mgmt(hdr->frame_control)) 852 sta = NULL; 853 854 /* this shouldn't even happen: just drop */ 855 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 856 !offchannel) 857 goto drop; 858 859 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 860 !ieee80211_is_probe_resp(hdr->frame_control)) { 861 /* translate MLD addresses to LINK addresses */ 862 struct ieee80211_link_sta *link_sta = 863 rcu_dereference(tmp_sta->link[link_id]); 864 struct ieee80211_bss_conf *link_conf = 865 rcu_dereference(info->control.vif->link_conf[link_id]); 866 struct ieee80211_mgmt *mgmt; 867 868 if (WARN_ON(!link_sta || !link_conf)) 869 goto drop; 870 871 /* if sta is NULL, the frame is a management frame */ 872 mgmt = (void *)hdr; 873 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 874 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 875 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 876 } 877 878 iwl_mvm_tx_skb(mvm, skb, sta); 879 return; 880 drop: 881 ieee80211_free_txskb(hw, skb); 882 } 883 884 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 885 { 886 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 887 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 888 struct sk_buff *skb = NULL; 889 890 /* 891 * No need for threads to be pending here, they can leave the first 892 * taker all the work. 893 * 894 * mvmtxq->tx_request logic: 895 * 896 * If 0, no one is currently TXing, set to 1 to indicate current thread 897 * will now start TX and other threads should quit. 898 * 899 * If 1, another thread is currently TXing, set to 2 to indicate to 900 * that thread that there was another request. Since that request may 901 * have raced with the check whether the queue is empty, the TXing 902 * thread should check the queue's status one more time before leaving. 903 * This check is done in order to not leave any TX hanging in the queue 904 * until the next TX invocation (which may not even happen). 905 * 906 * If 2, another thread is currently TXing, and it will already double 907 * check the queue, so do nothing. 908 */ 909 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 910 return; 911 912 rcu_read_lock(); 913 do { 914 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 915 &mvmtxq->state) && 916 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 917 &mvmtxq->state) && 918 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, 919 &mvmtxq->state) && 920 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 921 skb = ieee80211_tx_dequeue(hw, txq); 922 923 if (!skb) { 924 if (txq->sta) 925 IWL_DEBUG_TX(mvm, 926 "TXQ of sta %pM tid %d is now empty\n", 927 txq->sta->addr, 928 txq->tid); 929 break; 930 } 931 932 iwl_mvm_tx_skb(mvm, skb, txq->sta); 933 } 934 } while (atomic_dec_return(&mvmtxq->tx_request)); 935 rcu_read_unlock(); 936 } 937 938 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 939 struct ieee80211_txq *txq) 940 { 941 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 942 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 943 944 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 945 !txq->sta) { 946 iwl_mvm_mac_itxq_xmit(hw, txq); 947 return; 948 } 949 950 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 951 * to handle any packets we leave on the txq now 952 */ 953 954 spin_lock_bh(&mvm->add_stream_lock); 955 /* The list is being deleted only after the queue is fully allocated. */ 956 if (list_empty(&mvmtxq->list) && 957 /* recheck under lock */ 958 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 959 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 960 schedule_work(&mvm->add_stream_wk); 961 } 962 spin_unlock_bh(&mvm->add_stream_lock); 963 } 964 965 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 966 do { \ 967 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 968 break; \ 969 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 970 } while (0) 971 972 static void 973 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 974 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 975 enum ieee80211_ampdu_mlme_action action) 976 { 977 struct iwl_fw_dbg_trigger_tlv *trig; 978 struct iwl_fw_dbg_trigger_ba *ba_trig; 979 980 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 981 FW_DBG_TRIGGER_BA); 982 if (!trig) 983 return; 984 985 ba_trig = (void *)trig->data; 986 987 switch (action) { 988 case IEEE80211_AMPDU_TX_OPERATIONAL: { 989 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 990 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 991 992 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 993 "TX AGG START: MAC %pM tid %d ssn %d\n", 994 sta->addr, tid, tid_data->ssn); 995 break; 996 } 997 case IEEE80211_AMPDU_TX_STOP_CONT: 998 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 999 "TX AGG STOP: MAC %pM tid %d\n", 1000 sta->addr, tid); 1001 break; 1002 case IEEE80211_AMPDU_RX_START: 1003 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 1004 "RX AGG START: MAC %pM tid %d ssn %d\n", 1005 sta->addr, tid, rx_ba_ssn); 1006 break; 1007 case IEEE80211_AMPDU_RX_STOP: 1008 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 1009 "RX AGG STOP: MAC %pM tid %d\n", 1010 sta->addr, tid); 1011 break; 1012 default: 1013 break; 1014 } 1015 } 1016 1017 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1018 struct ieee80211_vif *vif, 1019 struct ieee80211_ampdu_params *params) 1020 { 1021 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1022 int ret; 1023 struct ieee80211_sta *sta = params->sta; 1024 enum ieee80211_ampdu_mlme_action action = params->action; 1025 u16 tid = params->tid; 1026 u16 *ssn = ¶ms->ssn; 1027 u16 buf_size = params->buf_size; 1028 bool amsdu = params->amsdu; 1029 u16 timeout = params->timeout; 1030 1031 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1032 sta->addr, tid, action); 1033 1034 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1035 return -EACCES; 1036 1037 mutex_lock(&mvm->mutex); 1038 1039 switch (action) { 1040 case IEEE80211_AMPDU_RX_START: 1041 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1042 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1043 struct iwl_mvm_vif *mvmvif; 1044 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1045 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1046 1047 mdata->opened_rx_ba_sessions = true; 1048 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1049 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1050 } 1051 if (!iwl_enable_rx_ampdu()) { 1052 ret = -EINVAL; 1053 break; 1054 } 1055 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1056 timeout); 1057 break; 1058 case IEEE80211_AMPDU_RX_STOP: 1059 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1060 timeout); 1061 break; 1062 case IEEE80211_AMPDU_TX_START: 1063 if (!iwl_enable_tx_ampdu()) { 1064 ret = -EINVAL; 1065 break; 1066 } 1067 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1068 break; 1069 case IEEE80211_AMPDU_TX_STOP_CONT: 1070 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1071 break; 1072 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1073 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1074 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1075 break; 1076 case IEEE80211_AMPDU_TX_OPERATIONAL: 1077 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1078 buf_size, amsdu); 1079 break; 1080 default: 1081 WARN_ON_ONCE(1); 1082 ret = -EINVAL; 1083 break; 1084 } 1085 1086 if (!ret) { 1087 u16 rx_ba_ssn = 0; 1088 1089 if (action == IEEE80211_AMPDU_RX_START) 1090 rx_ba_ssn = *ssn; 1091 1092 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1093 rx_ba_ssn, action); 1094 } 1095 mutex_unlock(&mvm->mutex); 1096 1097 return ret; 1098 } 1099 1100 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1101 struct ieee80211_vif *vif) 1102 { 1103 struct iwl_mvm *mvm = data; 1104 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1105 struct iwl_probe_resp_data *probe_data; 1106 unsigned int link_id; 1107 1108 mvmvif->uploaded = false; 1109 1110 spin_lock_bh(&mvm->time_event_lock); 1111 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1112 spin_unlock_bh(&mvm->time_event_lock); 1113 1114 mvmvif->roc_activity = ROC_NUM_ACTIVITIES; 1115 1116 mvmvif->bf_enabled = false; 1117 mvmvif->ba_enabled = false; 1118 mvmvif->ap_sta = NULL; 1119 1120 mvmvif->esr_active = false; 1121 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE; 1122 1123 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1124 mvmvif->link[link_id]->ap_sta_id = IWL_INVALID_STA; 1125 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1126 mvmvif->link[link_id]->phy_ctxt = NULL; 1127 mvmvif->link[link_id]->active = 0; 1128 mvmvif->link[link_id]->igtk = NULL; 1129 memset(&mvmvif->link[link_id]->bf_data, 0, 1130 sizeof(mvmvif->link[link_id]->bf_data)); 1131 } 1132 1133 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1134 lockdep_is_held(&mvm->mutex)); 1135 if (probe_data) 1136 kfree_rcu(probe_data, rcu_head); 1137 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1138 } 1139 1140 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1141 { 1142 struct iwl_mvm *mvm = data; 1143 struct iwl_mvm_sta *mvm_sta; 1144 struct ieee80211_vif *vif; 1145 int link_id; 1146 1147 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1148 vif = mvm_sta->vif; 1149 1150 if (!sta->valid_links) 1151 return; 1152 1153 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1154 struct iwl_mvm_link_sta *mvm_link_sta; 1155 1156 mvm_link_sta = 1157 rcu_dereference_check(mvm_sta->link[link_id], 1158 lockdep_is_held(&mvm->mutex)); 1159 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1160 /* 1161 * We have a link STA but the link is inactive in 1162 * mac80211. This will happen if we failed to 1163 * deactivate the link but mac80211 roll back the 1164 * deactivation of the link. 1165 * Delete the stale data to avoid issues later on. 1166 */ 1167 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1168 link_id); 1169 } 1170 } 1171 } 1172 1173 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1174 { 1175 iwl_mvm_stop_device(mvm); 1176 1177 mvm->cur_aid = 0; 1178 1179 mvm->scan_status = 0; 1180 mvm->ps_disabled = false; 1181 mvm->rfkill_safe_init_done = false; 1182 1183 /* just in case one was running */ 1184 iwl_mvm_cleanup_roc_te(mvm); 1185 ieee80211_remain_on_channel_expired(mvm->hw); 1186 1187 iwl_mvm_ftm_restart(mvm); 1188 1189 /* 1190 * cleanup all interfaces, even inactive ones, as some might have 1191 * gone down during the HW restart 1192 */ 1193 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1194 1195 /* cleanup stations as links may be gone after restart */ 1196 ieee80211_iterate_stations_atomic(mvm->hw, 1197 iwl_mvm_cleanup_sta_iterator, mvm); 1198 1199 mvm->p2p_device_vif = NULL; 1200 1201 iwl_mvm_reset_phy_ctxts(mvm); 1202 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1203 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1204 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1205 1206 ieee80211_wake_queues(mvm->hw); 1207 1208 mvm->rx_ba_sessions = 0; 1209 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1210 mvm->monitor_on = false; 1211 #ifdef CONFIG_IWLWIFI_DEBUGFS 1212 mvm->beacon_inject_active = false; 1213 #endif 1214 1215 /* keep statistics ticking */ 1216 iwl_mvm_accu_radio_stats(mvm); 1217 } 1218 1219 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1220 { 1221 bool fast_resume = false; 1222 int ret; 1223 1224 lockdep_assert_held(&mvm->mutex); 1225 1226 ret = iwl_mvm_mei_get_ownership(mvm); 1227 if (ret) 1228 return ret; 1229 1230 if (mvm->mei_nvm_data) { 1231 /* We got the NIC, we can now free the MEI NVM data */ 1232 kfree(mvm->mei_nvm_data); 1233 mvm->mei_nvm_data = NULL; 1234 1235 /* 1236 * We can't free the nvm_data we allocated based on the SAP 1237 * data because we registered to cfg80211 with the channels 1238 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1239 * just in order to be able free it later. 1240 * NULLify nvm_data so that we will read the NVM from the 1241 * firmware this time. 1242 */ 1243 mvm->temp_nvm_data = mvm->nvm_data; 1244 mvm->nvm_data = NULL; 1245 } 1246 1247 #ifdef CONFIG_PM_SLEEP 1248 /* fast_resume will be cleared by iwl_mvm_fast_resume */ 1249 fast_resume = mvm->fast_resume; 1250 1251 if (fast_resume) { 1252 iwl_mvm_mei_device_state(mvm, true); 1253 ret = iwl_mvm_fast_resume(mvm); 1254 if (ret) { 1255 iwl_mvm_stop_device(mvm); 1256 /* iwl_mvm_up() will be called further down */ 1257 } else { 1258 /* 1259 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon 1260 * mac_down() so that debugfs will stop honoring 1261 * requests after we flush all the workers. 1262 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again 1263 * now that we are back. This is a bit abusing the 1264 * flag since the firmware wasn't really ever stopped, 1265 * but this still serves the purpose. 1266 */ 1267 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1268 } 1269 } 1270 #endif /* CONFIG_PM_SLEEP */ 1271 1272 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1273 /* 1274 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1275 * so later code will - from now on - see that we're doing it. 1276 */ 1277 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1278 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1279 /* Clean up some internal and mac80211 state on restart */ 1280 iwl_mvm_restart_cleanup(mvm); 1281 } 1282 1283 /* we also want to load the firmware if fast_resume failed */ 1284 if (!fast_resume || ret) 1285 ret = iwl_mvm_up(mvm); 1286 1287 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1288 NULL); 1289 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1290 NULL); 1291 1292 mvm->last_reset_or_resume_time_jiffies = jiffies; 1293 1294 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1295 /* Something went wrong - we need to finish some cleanup 1296 * that normally iwl_mvm_mac_restart_complete() below 1297 * would do. 1298 */ 1299 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1300 } 1301 1302 return ret; 1303 } 1304 1305 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1306 { 1307 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1308 int ret; 1309 int retry, max_retry = 0; 1310 1311 mutex_lock(&mvm->mutex); 1312 1313 /* we are starting the mac not in error flow, and restart is enabled */ 1314 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1315 iwlwifi_mod_params.fw_restart) 1316 max_retry = IWL_MAX_INIT_RETRY; 1317 1318 for (retry = 0; retry <= max_retry; retry++) { 1319 ret = __iwl_mvm_mac_start(mvm); 1320 if (ret != -ETIMEDOUT) 1321 break; 1322 1323 IWL_ERR(mvm, "mac start retry %d\n", retry); 1324 } 1325 1326 mutex_unlock(&mvm->mutex); 1327 1328 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1329 1330 return ret; 1331 } 1332 1333 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1334 { 1335 int ret; 1336 1337 guard(mvm)(mvm); 1338 1339 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1340 1341 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1342 if (ret) 1343 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1344 ret); 1345 1346 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1347 1348 /* 1349 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1350 * of packets the FW sent out, so we must reconnect. 1351 */ 1352 iwl_mvm_teardown_tdls_peers(mvm); 1353 1354 IWL_INFO(mvm, "restart completed\n"); 1355 iwl_trans_finish_sw_reset(mvm->trans); 1356 1357 /* no need to lock, adding in parallel would schedule too */ 1358 if (!list_empty(&mvm->add_stream_txqs)) 1359 schedule_work(&mvm->add_stream_wk); 1360 } 1361 1362 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1363 enum ieee80211_reconfig_type reconfig_type) 1364 { 1365 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1366 1367 switch (reconfig_type) { 1368 case IEEE80211_RECONFIG_TYPE_RESTART: 1369 iwl_mvm_restart_complete(mvm); 1370 break; 1371 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1372 break; 1373 } 1374 } 1375 1376 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend) 1377 { 1378 lockdep_assert_held(&mvm->mutex); 1379 1380 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1381 1382 /* firmware counters are obviously reset now, but we shouldn't 1383 * partially track so also clear the fw_reset_accu counters. 1384 */ 1385 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1386 1387 /* async_handlers_wk is now blocked */ 1388 1389 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1390 iwl_mvm_rm_aux_sta(mvm); 1391 1392 if (suspend && 1393 mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 1394 iwl_mvm_fast_suspend(mvm); 1395 /* From this point on, we won't touch the device */ 1396 iwl_mvm_mei_device_state(mvm, false); 1397 } else { 1398 iwl_mvm_stop_device(mvm); 1399 } 1400 1401 iwl_mvm_async_handlers_purge(mvm); 1402 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1403 1404 /* 1405 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1406 * hw (as restart_complete() won't be called in this case) and mac80211 1407 * won't execute the restart. 1408 * But make sure to cleanup interfaces that have gone down before/during 1409 * HW restart was requested. 1410 */ 1411 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1412 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1413 &mvm->status)) 1414 ieee80211_iterate_interfaces(mvm->hw, 0, 1415 iwl_mvm_cleanup_iterator, mvm); 1416 1417 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1418 * make sure there's nothing left there and warn if any is found. 1419 */ 1420 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1421 int i; 1422 1423 for (i = 0; i < mvm->max_scans; i++) { 1424 if (WARN_ONCE(mvm->scan_uid_status[i], 1425 "UMAC scan UID %d status was not cleaned\n", 1426 i)) 1427 mvm->scan_uid_status[i] = 0; 1428 } 1429 } 1430 } 1431 1432 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend) 1433 { 1434 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1435 1436 /* Stop internal MLO scan, if running */ 1437 mutex_lock(&mvm->mutex); 1438 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1439 mutex_unlock(&mvm->mutex); 1440 1441 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk); 1442 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1443 flush_work(&mvm->async_handlers_wk); 1444 flush_work(&mvm->add_stream_wk); 1445 1446 /* 1447 * Lock and clear the firmware running bit here already, so that 1448 * new commands coming in elsewhere, e.g. from debugfs, will not 1449 * be able to proceed. This is important here because one of those 1450 * debugfs files causes the firmware dump to be triggered, and if we 1451 * don't stop debugfs accesses before canceling that it could be 1452 * retriggered after we flush it but before we've cleared the bit. 1453 */ 1454 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1455 1456 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1457 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1458 1459 /* 1460 * The work item could be running or queued if the 1461 * ROC time event stops just as we get here. 1462 */ 1463 flush_work(&mvm->roc_done_wk); 1464 1465 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1466 1467 mutex_lock(&mvm->mutex); 1468 __iwl_mvm_mac_stop(mvm, suspend); 1469 mutex_unlock(&mvm->mutex); 1470 1471 /* 1472 * The worker might have been waiting for the mutex, let it run and 1473 * discover that its list is now empty. 1474 */ 1475 cancel_work_sync(&mvm->async_handlers_wk); 1476 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1477 } 1478 1479 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1480 { 1481 u16 i; 1482 1483 lockdep_assert_held(&mvm->mutex); 1484 1485 for (i = 0; i < NUM_PHY_CTX; i++) 1486 if (!mvm->phy_ctxts[i].ref) 1487 return &mvm->phy_ctxts[i]; 1488 1489 IWL_ERR(mvm, "No available PHY context\n"); 1490 return NULL; 1491 } 1492 1493 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, 1494 struct ieee80211_bss_conf *link_conf, 1495 s16 tx_power) 1496 { 1497 u32 cmd_id = REDUCE_TX_POWER_CMD; 1498 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(link_conf->vif); 1499 u32 mac_id = mvmvif->id; 1500 int len; 1501 struct iwl_dev_tx_power_cmd_v3_v8 cmd = { 1502 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK), 1503 .common.link_id = cpu_to_le32(mac_id), 1504 }; 1505 struct iwl_dev_tx_power_cmd cmd_v9_v10; 1506 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3); 1507 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ? 1508 IWL_DEV_MAX_TX_POWER : 8 * tx_power; 1509 void *cmd_data = &cmd; 1510 1511 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power); 1512 1513 if (cmd_ver > 8) { 1514 u32 link_id; 1515 1516 if (WARN_ON(!mvmvif->link[link_conf->link_id])) 1517 return -ENODEV; 1518 1519 link_id = mvmvif->link[link_conf->link_id]->fw_link_id; 1520 1521 /* Those fields sit on the same place for v9 and v10 */ 1522 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK); 1523 cmd_v9_v10.common.link_id = cpu_to_le32(link_id); 1524 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power); 1525 cmd_data = &cmd_v9_v10; 1526 } 1527 1528 if (cmd_ver == 10) 1529 len = sizeof(cmd_v9_v10.v10); 1530 else if (cmd_ver == 9) 1531 len = sizeof(cmd_v9_v10.v9); 1532 else if (cmd_ver == 8) 1533 len = sizeof(cmd.v8); 1534 else if (fw_has_api(&mvm->fw->ucode_capa, 1535 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1536 len = sizeof(cmd.v5); 1537 else if (fw_has_capa(&mvm->fw->ucode_capa, 1538 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1539 len = sizeof(cmd.v4); 1540 else 1541 len = sizeof(cmd.v3); 1542 1543 /* all structs have the same common part, add its length */ 1544 len += sizeof(cmd.common); 1545 1546 if (cmd_ver < 9) 1547 len += sizeof(cmd.per_band); 1548 1549 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data); 1550 1551 } 1552 1553 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1554 { 1555 struct ieee80211_hw *hw = data; 1556 int i; 1557 1558 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1559 struct iwl_mvm_txq *mvmtxq = 1560 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1561 1562 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1563 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1564 } 1565 } 1566 1567 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1568 struct ieee80211_vif *vif, 1569 struct ieee80211_bss_conf *link_conf) 1570 { 1571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1572 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1573 int ret; 1574 1575 mutex_lock(&mvm->mutex); 1576 1577 if (vif->type == NL80211_IFTYPE_STATION) { 1578 struct iwl_mvm_sta *mvmsta; 1579 unsigned int link_id = link_conf->link_id; 1580 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1581 1582 mvmvif->csa_bcn_pending = false; 1583 mvmvif->csa_blocks_tx = false; 1584 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1585 1586 if (WARN_ON(!mvmsta)) { 1587 ret = -EIO; 1588 goto out_unlock; 1589 } 1590 1591 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1592 if (mvm->mld_api_is_used) 1593 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1594 else 1595 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1596 1597 if (!fw_has_capa(&mvm->fw->ucode_capa, 1598 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1599 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1600 if (ret) 1601 goto out_unlock; 1602 1603 iwl_mvm_stop_session_protection(mvm, vif); 1604 } 1605 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1606 struct iwl_mvm_txq *mvmtxq = 1607 iwl_mvm_txq_from_mac80211(vif->txq); 1608 1609 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1610 1611 local_bh_disable(); 1612 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1613 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1614 local_bh_enable(); 1615 1616 mvmvif->csa_blocks_tx = false; 1617 } 1618 1619 mvmvif->ps_disabled = false; 1620 1621 ret = iwl_mvm_power_update_ps(mvm); 1622 1623 out_unlock: 1624 if (mvmvif->csa_failed) 1625 ret = -EIO; 1626 mutex_unlock(&mvm->mutex); 1627 1628 return ret; 1629 } 1630 1631 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1632 struct ieee80211_vif *vif, 1633 struct ieee80211_bss_conf *link_conf) 1634 { 1635 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1636 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1637 struct iwl_chan_switch_te_cmd cmd = { 1638 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1639 mvmvif->color)), 1640 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1641 }; 1642 1643 /* 1644 * In the new flow since FW is in charge of the timing, 1645 * if driver has canceled the channel switch he will receive the 1646 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1647 */ 1648 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1649 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1650 return; 1651 1652 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1653 1654 mutex_lock(&mvm->mutex); 1655 if (!fw_has_capa(&mvm->fw->ucode_capa, 1656 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1657 iwl_mvm_remove_csa_period(mvm, vif); 1658 else 1659 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1660 WIDE_ID(MAC_CONF_GROUP, 1661 CHANNEL_SWITCH_TIME_EVENT_CMD), 1662 0, sizeof(cmd), &cmd)); 1663 mvmvif->csa_failed = true; 1664 mutex_unlock(&mvm->mutex); 1665 1666 /* If we're here, we can't support MLD */ 1667 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1668 } 1669 1670 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1671 { 1672 struct iwl_mvm_vif *mvmvif; 1673 struct ieee80211_vif *vif; 1674 1675 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1676 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1677 1678 /* Trigger disconnect (should clear the CSA state) */ 1679 ieee80211_chswitch_done(vif, false, 0); 1680 } 1681 1682 static u8 1683 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1684 { 1685 int data_start; 1686 int control_start; 1687 int bw; 1688 1689 if (chandef->width == NL80211_CHAN_WIDTH_320) 1690 bw = 320; 1691 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1692 bw = 160; 1693 else 1694 return 0; 1695 1696 /* data is bw wide so the start is half the width */ 1697 data_start = chandef->center_freq1 - bw / 2; 1698 /* control is 20Mhz width */ 1699 control_start = chandef->chan->center_freq - 10; 1700 1701 return (control_start - data_start) / 80; 1702 } 1703 1704 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1705 struct ieee80211_vif *vif) 1706 { 1707 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1708 int ret; 1709 1710 lockdep_assert_held(&mvm->mutex); 1711 1712 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1713 if (ret) { 1714 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1715 return ret; 1716 } 1717 1718 /* Only queue for this station is the mcast queue, 1719 * which shouldn't be in TFD mask anyway 1720 */ 1721 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1722 vif->type, 1723 IWL_STA_MULTICAST); 1724 } 1725 1726 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy, 1727 struct wiphy_work *wk) 1728 { 1729 struct iwl_mvm_vif *mvmvif = 1730 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work); 1731 struct iwl_mvm *mvm = mvmvif->mvm; 1732 struct ieee80211_vif *vif = 1733 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1734 1735 guard(mvm)(mvm); 1736 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION); 1737 } 1738 1739 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) 1740 { 1741 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif, 1742 mlo_int_scan_wk.work); 1743 struct ieee80211_vif *vif = 1744 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1745 1746 guard(mvm)(mvmvif->mvm); 1747 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif); 1748 } 1749 1750 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) 1751 { 1752 struct iwl_mvm_vif *mvmvif = 1753 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); 1754 struct iwl_mvm *mvm = mvmvif->mvm; 1755 struct ieee80211_vif *vif = 1756 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1757 1758 guard(mvm)(mvm); 1759 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); 1760 } 1761 1762 static void iwl_mvm_unblock_esr_tmp_non_bss(struct wiphy *wiphy, 1763 struct wiphy_work *wk) 1764 { 1765 struct iwl_mvm_vif *mvmvif = 1766 container_of(wk, struct iwl_mvm_vif, 1767 unblock_esr_tmp_non_bss_wk.work); 1768 struct iwl_mvm *mvm = mvmvif->mvm; 1769 struct ieee80211_vif *vif = 1770 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1771 1772 mutex_lock(&mvm->mutex); 1773 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TMP_NON_BSS); 1774 mutex_unlock(&mvm->mutex); 1775 } 1776 1777 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1778 { 1779 lockdep_assert_held(&mvm->mutex); 1780 1781 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1782 return; 1783 1784 mvmvif->deflink.average_beacon_energy = 0; 1785 1786 INIT_DELAYED_WORK(&mvmvif->csa_work, 1787 iwl_mvm_channel_switch_disconnect_wk); 1788 1789 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk, 1790 iwl_mvm_prevent_esr_done_wk); 1791 1792 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, 1793 iwl_mvm_mlo_int_scan_wk); 1794 1795 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, 1796 iwl_mvm_unblock_esr_tpt); 1797 1798 wiphy_delayed_work_init(&mvmvif->unblock_esr_tmp_non_bss_wk, 1799 iwl_mvm_unblock_esr_tmp_non_bss); 1800 } 1801 1802 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1803 struct ieee80211_vif *vif) 1804 { 1805 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1806 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1807 int ret; 1808 int i; 1809 1810 mutex_lock(&mvm->mutex); 1811 1812 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1813 1814 mvmvif->mvm = mvm; 1815 1816 /* the first link always points to the default one */ 1817 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1818 mvmvif->deflink.active = 0; 1819 mvmvif->link[0] = &mvmvif->deflink; 1820 1821 vif->driver_flags = IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC; 1822 1823 iwl_mvm_set_link_fw_id(mvm, vif, &vif->bss_conf); 1824 1825 /* 1826 * Not much to do here. The stack will not allow interface 1827 * types or combinations that we didn't advertise, so we 1828 * don't really have to check the types. 1829 */ 1830 1831 /* make sure that beacon statistics don't go backwards with FW reset */ 1832 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1833 for_each_mvm_vif_valid_link(mvmvif, i) 1834 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1835 mvmvif->link[i]->beacon_stats.num_beacons; 1836 1837 /* Allocate resources for the MAC context, and add it to the fw */ 1838 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1839 if (ret) 1840 goto out; 1841 1842 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1843 1844 /* 1845 * The AP binding flow can be done only after the beacon 1846 * template is configured (which happens only in the mac80211 1847 * start_ap() flow), and adding the broadcast station can happen 1848 * only after the binding. 1849 * In addition, since modifying the MAC before adding a bcast 1850 * station is not allowed by the FW, delay the adding of MAC context to 1851 * the point where we can also add the bcast station. 1852 * In short: there's not much we can do at this point, other than 1853 * allocating resources :) 1854 */ 1855 if (vif->type == NL80211_IFTYPE_AP || 1856 vif->type == NL80211_IFTYPE_ADHOC) { 1857 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1858 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1859 ret = 0; 1860 goto out; 1861 } 1862 1863 mvmvif->features |= hw->netdev_features; 1864 1865 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1866 if (ret) 1867 goto out_unlock; 1868 1869 ret = iwl_mvm_power_update_mac(mvm); 1870 if (ret) 1871 goto out_remove_mac; 1872 1873 /* beacon filtering */ 1874 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1875 if (ret) 1876 goto out_remove_mac; 1877 1878 if (!mvm->bf_allowed_vif && 1879 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1880 mvm->bf_allowed_vif = mvmvif; 1881 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1882 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1883 } 1884 1885 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1886 mvm->p2p_device_vif = vif; 1887 1888 iwl_mvm_tcm_add_vif(mvm, vif); 1889 1890 if (vif->type == NL80211_IFTYPE_MONITOR) { 1891 mvm->monitor_on = true; 1892 mvm->monitor_p80 = 1893 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1894 } 1895 1896 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1897 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1898 1899 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1900 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1901 !mvm->csme_vif && mvm->mei_registered) { 1902 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1903 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1904 mvm->csme_vif = vif; 1905 } 1906 1907 out: 1908 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1909 vif->type == NL80211_IFTYPE_ADHOC)) 1910 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1911 1912 goto out_unlock; 1913 1914 out_remove_mac: 1915 mvmvif->deflink.phy_ctxt = NULL; 1916 iwl_mvm_mac_ctxt_remove(mvm, vif); 1917 out_unlock: 1918 mutex_unlock(&mvm->mutex); 1919 1920 return ret; 1921 } 1922 1923 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1924 struct ieee80211_vif *vif) 1925 { 1926 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1927 1928 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1929 /* 1930 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1931 * We assume here that all the packets sent to the OFFCHANNEL 1932 * queue are sent in ROC session. 1933 */ 1934 flush_work(&mvm->roc_done_wk); 1935 } 1936 1937 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1938 &mvmvif->prevent_esr_done_wk); 1939 1940 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1941 &mvmvif->mlo_int_scan_wk); 1942 1943 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 1944 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1945 &mvmvif->unblock_esr_tmp_non_bss_wk); 1946 1947 cancel_delayed_work_sync(&mvmvif->csa_work); 1948 } 1949 1950 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1951 struct ieee80211_vif *vif) 1952 { 1953 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1954 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1955 struct iwl_probe_resp_data *probe_data; 1956 1957 iwl_mvm_prepare_mac_removal(mvm, vif); 1958 1959 if (!(vif->type == NL80211_IFTYPE_AP || 1960 vif->type == NL80211_IFTYPE_ADHOC)) 1961 iwl_mvm_tcm_rm_vif(mvm, vif); 1962 1963 mutex_lock(&mvm->mutex); 1964 1965 if (vif == mvm->csme_vif) { 1966 iwl_mei_set_netdev(NULL); 1967 mvm->csme_vif = NULL; 1968 } 1969 1970 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1971 lockdep_is_held(&mvm->mutex)); 1972 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1973 if (probe_data) 1974 kfree_rcu(probe_data, rcu_head); 1975 1976 if (mvm->bf_allowed_vif == mvmvif) { 1977 mvm->bf_allowed_vif = NULL; 1978 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1979 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1980 } 1981 1982 if (vif->bss_conf.ftm_responder) 1983 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1984 1985 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1986 1987 /* 1988 * For AP/GO interface, the tear down of the resources allocated to the 1989 * interface is be handled as part of the stop_ap flow. 1990 */ 1991 if (vif->type == NL80211_IFTYPE_AP || 1992 vif->type == NL80211_IFTYPE_ADHOC) 1993 goto out; 1994 1995 iwl_mvm_power_update_mac(mvm); 1996 1997 /* Before the interface removal, mac80211 would cancel the ROC, and the 1998 * ROC worker would be scheduled if needed. The worker would be flushed 1999 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 2000 * binding etc. so nothing needs to be done here. 2001 */ 2002 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2003 if (mvmvif->deflink.phy_ctxt) { 2004 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 2005 mvmvif->deflink.phy_ctxt = NULL; 2006 } 2007 mvm->p2p_device_vif = NULL; 2008 } 2009 2010 iwl_mvm_mac_ctxt_remove(mvm, vif); 2011 2012 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 2013 2014 if (vif->type == NL80211_IFTYPE_MONITOR) 2015 mvm->monitor_on = false; 2016 2017 out: 2018 if (vif->type == NL80211_IFTYPE_AP || 2019 vif->type == NL80211_IFTYPE_ADHOC) { 2020 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 2021 iwl_mvm_dealloc_bcast_sta(mvm, vif); 2022 } 2023 2024 mutex_unlock(&mvm->mutex); 2025 } 2026 2027 struct iwl_mvm_mc_iter_data { 2028 struct iwl_mvm *mvm; 2029 int port_id; 2030 }; 2031 2032 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 2033 struct ieee80211_vif *vif) 2034 { 2035 struct iwl_mvm_mc_iter_data *data = _data; 2036 struct iwl_mvm *mvm = data->mvm; 2037 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 2038 struct iwl_host_cmd hcmd = { 2039 .id = MCAST_FILTER_CMD, 2040 .flags = CMD_ASYNC, 2041 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 2042 }; 2043 int ret, len; 2044 2045 /* if we don't have free ports, mcast frames will be dropped */ 2046 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 2047 return; 2048 2049 if (vif->type != NL80211_IFTYPE_STATION || 2050 !vif->cfg.assoc) 2051 return; 2052 2053 cmd->port_id = data->port_id++; 2054 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 2055 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 2056 2057 hcmd.len[0] = len; 2058 hcmd.data[0] = cmd; 2059 2060 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2061 if (ret) 2062 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 2063 } 2064 2065 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 2066 { 2067 struct iwl_mvm_mc_iter_data iter_data = { 2068 .mvm = mvm, 2069 }; 2070 int ret; 2071 2072 lockdep_assert_held(&mvm->mutex); 2073 2074 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 2075 return; 2076 2077 ieee80211_iterate_active_interfaces_atomic( 2078 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2079 iwl_mvm_mc_iface_iterator, &iter_data); 2080 2081 /* 2082 * Send a (synchronous) ech command so that we wait for the 2083 * multiple asynchronous MCAST_FILTER_CMD commands sent by 2084 * the interface iterator. Otherwise, we might get here over 2085 * and over again (by userspace just sending a lot of these) 2086 * and the CPU can send them faster than the firmware can 2087 * process them. 2088 * Note that the CPU is still faster - but with this we'll 2089 * actually send fewer commands overall because the CPU will 2090 * not schedule the work in mac80211 as frequently if it's 2091 * still running when rescheduled (possibly multiple times). 2092 */ 2093 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2094 if (ret) 2095 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2096 } 2097 2098 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2099 struct netdev_hw_addr_list *mc_list) 2100 { 2101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2102 struct iwl_mcast_filter_cmd *cmd; 2103 struct netdev_hw_addr *addr; 2104 int addr_count; 2105 bool pass_all; 2106 int len; 2107 2108 addr_count = netdev_hw_addr_list_count(mc_list); 2109 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2110 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2111 if (pass_all) 2112 addr_count = 0; 2113 2114 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2115 cmd = kzalloc(len, GFP_ATOMIC); 2116 if (!cmd) 2117 return 0; 2118 2119 if (pass_all) { 2120 cmd->pass_all = 1; 2121 #if defined(__linux__) 2122 return (u64)(unsigned long)cmd; 2123 #elif defined(__FreeBSD__) 2124 return (u64)(uintptr_t)cmd; 2125 #endif 2126 } 2127 2128 netdev_hw_addr_list_for_each(addr, mc_list) { 2129 #if defined(__linux__) 2130 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2131 cmd->count, addr->addr); 2132 #elif defined(__FreeBSD__) 2133 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %6D\n", 2134 cmd->count, addr->addr, ":"); 2135 #endif 2136 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2137 addr->addr, ETH_ALEN); 2138 cmd->count++; 2139 } 2140 2141 #if defined(__linux__) 2142 return (u64)(unsigned long)cmd; 2143 #elif defined(__FreeBSD__) 2144 return (u64)(uintptr_t)cmd; 2145 #endif 2146 } 2147 2148 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2149 unsigned int changed_flags, 2150 unsigned int *total_flags, u64 multicast) 2151 { 2152 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2153 #if defined(__linux__) 2154 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2155 #elif defined(__FreeBSD__) 2156 struct iwl_mcast_filter_cmd *cmd = (void *)(uintptr_t)multicast; 2157 #endif 2158 2159 guard(mvm)(mvm); 2160 2161 /* replace previous configuration */ 2162 kfree(mvm->mcast_filter_cmd); 2163 mvm->mcast_filter_cmd = cmd; 2164 2165 if (!cmd) 2166 goto out; 2167 2168 if (changed_flags & FIF_ALLMULTI) 2169 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2170 2171 if (cmd->pass_all) 2172 cmd->count = 0; 2173 2174 iwl_mvm_recalc_multicast(mvm); 2175 out: 2176 *total_flags = 0; 2177 } 2178 2179 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2180 struct ieee80211_vif *vif, 2181 unsigned int filter_flags, 2182 unsigned int changed_flags) 2183 { 2184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2185 2186 /* We support only filter for probe requests */ 2187 if (!(changed_flags & FIF_PROBE_REQ)) 2188 return; 2189 2190 /* Supported only for p2p client interfaces */ 2191 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2192 !vif->p2p) 2193 return; 2194 2195 guard(mvm)(mvm); 2196 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2197 } 2198 2199 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2200 { 2201 struct iwl_mu_group_mgmt_cmd cmd = {}; 2202 2203 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2204 WLAN_MEMBERSHIP_LEN); 2205 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2206 WLAN_USER_POSITION_LEN); 2207 2208 return iwl_mvm_send_cmd_pdu(mvm, 2209 WIDE_ID(DATA_PATH_GROUP, 2210 UPDATE_MU_GROUPS_CMD), 2211 0, sizeof(cmd), &cmd); 2212 } 2213 2214 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2215 struct ieee80211_vif *vif) 2216 { 2217 if (vif->bss_conf.mu_mimo_owner) { 2218 struct iwl_mu_group_mgmt_notif *notif = _data; 2219 2220 /* 2221 * MU-MIMO Group Id action frame is little endian. We treat 2222 * the data received from firmware as if it came from the 2223 * action frame, so no conversion is needed. 2224 */ 2225 ieee80211_update_mu_groups(vif, 0, 2226 (u8 *)¬if->membership_status, 2227 (u8 *)¬if->user_position); 2228 } 2229 } 2230 2231 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2232 struct iwl_rx_cmd_buffer *rxb) 2233 { 2234 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2235 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2236 2237 ieee80211_iterate_active_interfaces_atomic( 2238 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2239 iwl_mvm_mu_mimo_iface_iterator, notif); 2240 } 2241 2242 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2243 { 2244 u8 byte_num = ppe_pos_bit / 8; 2245 u8 bit_num = ppe_pos_bit % 8; 2246 u8 residue_bits; 2247 u8 res; 2248 2249 if (bit_num <= 5) 2250 return (ppe[byte_num] >> bit_num) & 2251 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2252 2253 /* 2254 * If bit_num > 5, we have to combine bits with next byte. 2255 * Calculate how many bits we need to take from current byte (called 2256 * here "residue_bits"), and add them to bits from next byte. 2257 */ 2258 2259 residue_bits = 8 - bit_num; 2260 2261 res = (ppe[byte_num + 1] & 2262 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2263 residue_bits; 2264 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2265 2266 return res; 2267 } 2268 2269 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2270 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2271 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2272 bool inheritance) 2273 { 2274 int i; 2275 2276 /* 2277 * FW currently supports only nss == MAX_HE_SUPP_NSS 2278 * 2279 * If nss > MAX: we can ignore values we don't support 2280 * If nss < MAX: we can set zeros in other streams 2281 */ 2282 if (nss > MAX_HE_SUPP_NSS) { 2283 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2284 MAX_HE_SUPP_NSS); 2285 nss = MAX_HE_SUPP_NSS; 2286 } 2287 2288 for (i = 0; i < nss; i++) { 2289 u8 ru_index_tmp = ru_index_bitmap << 1; 2290 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2291 u8 bw; 2292 2293 for (bw = 0; 2294 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2295 bw++) { 2296 ru_index_tmp >>= 1; 2297 2298 /* 2299 * According to the 11be spec, if for a specific BW the PPE Thresholds 2300 * isn't present - it should inherit the thresholds from the last 2301 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2302 * this inheritance - continue in this case 2303 */ 2304 if (!(ru_index_tmp & 1)) { 2305 if (inheritance) 2306 goto set_thresholds; 2307 else 2308 continue; 2309 } 2310 2311 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2312 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2313 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2314 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2315 2316 set_thresholds: 2317 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2318 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2319 } 2320 } 2321 } 2322 2323 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2324 struct ieee80211_link_sta *link_sta, 2325 struct iwl_he_pkt_ext_v2 *pkt_ext, 2326 bool inheritance) 2327 { 2328 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2329 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2330 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2331 u8 ru_index_bitmap = 2332 u8_get_bits(*ppe, 2333 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2334 /* Starting after PPE header */ 2335 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2336 2337 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2338 inheritance); 2339 } 2340 2341 static int 2342 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2343 u8 nominal_padding) 2344 { 2345 int low_th = -1; 2346 int high_th = -1; 2347 int i; 2348 2349 /* all the macros are the same for EHT and HE */ 2350 switch (nominal_padding) { 2351 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2352 low_th = IWL_HE_PKT_EXT_NONE; 2353 high_th = IWL_HE_PKT_EXT_NONE; 2354 break; 2355 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2356 low_th = IWL_HE_PKT_EXT_BPSK; 2357 high_th = IWL_HE_PKT_EXT_NONE; 2358 break; 2359 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2360 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2361 low_th = IWL_HE_PKT_EXT_NONE; 2362 high_th = IWL_HE_PKT_EXT_BPSK; 2363 break; 2364 } 2365 2366 if (low_th < 0 || high_th < 0) 2367 return -EINVAL; 2368 2369 /* Set the PPE thresholds accordingly */ 2370 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2371 u8 bw; 2372 2373 for (bw = 0; 2374 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2375 bw++) { 2376 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2377 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2378 } 2379 } 2380 2381 return 0; 2382 } 2383 2384 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2385 u8 nominal_padding) 2386 { 2387 int i; 2388 2389 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2390 u8 bw; 2391 2392 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2393 bw++) { 2394 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2395 2396 if (nominal_padding > 2397 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2398 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2399 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2400 else if (nominal_padding == 2401 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2402 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2403 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2404 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2405 } 2406 } 2407 } 2408 2409 /* Set the pkt_ext field according to PPE Thresholds element */ 2410 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2411 struct ieee80211_link_sta *link_sta, 2412 struct iwl_he_pkt_ext_v2 *pkt_ext) 2413 { 2414 u8 nominal_padding; 2415 int i, ret = 0; 2416 2417 if (WARN_ON(!link_sta)) 2418 return -EINVAL; 2419 2420 /* Initialize the PPE thresholds to "None" (7), as described in Table 2421 * 9-262ac of 80211.ax/D3.0. 2422 */ 2423 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2424 sizeof(struct iwl_he_pkt_ext_v2)); 2425 2426 if (link_sta->eht_cap.has_eht) { 2427 nominal_padding = 2428 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2429 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2430 2431 /* If PPE Thresholds exists, parse them into a FW-familiar 2432 * format. 2433 */ 2434 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2435 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2436 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2437 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2438 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2439 u8 ru_index_bitmap = 2440 u16_get_bits(*ppe, 2441 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2442 /* Starting after PPE header */ 2443 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2444 2445 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2446 ppe, ppe_pos_bit, true); 2447 /* EHT PPE Thresholds doesn't exist - set the API according to 2448 * HE PPE Tresholds 2449 */ 2450 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2451 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2452 /* Even though HE Capabilities IE doesn't contain PPE 2453 * Thresholds for BW 320Mhz, thresholds for this BW will 2454 * be filled in with the same values as 160Mhz, due to 2455 * the inheritance, as required. 2456 */ 2457 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2458 true); 2459 2460 /* According to the requirements, for MCSs 12-13 the 2461 * maximum value between HE PPE Threshold and Common 2462 * Nominal Packet Padding needs to be taken 2463 */ 2464 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2465 2466 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2467 * take the Thresholds from Common Nominal Packet Padding field 2468 */ 2469 } else { 2470 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2471 nominal_padding); 2472 } 2473 } else if (link_sta->he_cap.has_he) { 2474 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2475 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2476 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2477 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2478 false); 2479 /* PPE Thresholds doesn't exist - set the API PPE values 2480 * according to Common Nominal Packet Padding field. 2481 */ 2482 } else { 2483 nominal_padding = 2484 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2485 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2486 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2487 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2488 nominal_padding); 2489 } 2490 } 2491 2492 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2493 int bw; 2494 2495 for (bw = 0; 2496 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2497 bw++) { 2498 u8 *qam_th = 2499 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2500 2501 IWL_DEBUG_HT(mvm, 2502 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2503 i, bw, qam_th[0], qam_th[1]); 2504 } 2505 } 2506 return ret; 2507 } 2508 2509 /* 2510 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2511 * is enabled or not 2512 */ 2513 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2514 const struct iwl_mvm_vif_link_info *link_info, 2515 struct iwl_he_backoff_conf *trig_based_txf) 2516 { 2517 int i; 2518 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2519 bool mu_edca_enabled = true; 2520 2521 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2522 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2523 &link_info->queue_params[i].mu_edca_param_rec; 2524 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2525 2526 if (!link_info->queue_params[i].mu_edca) { 2527 mu_edca_enabled = false; 2528 break; 2529 } 2530 2531 trig_based_txf[ac].cwmin = 2532 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2533 trig_based_txf[ac].cwmax = 2534 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2535 trig_based_txf[ac].aifsn = 2536 cpu_to_le16(mu_edca->aifsn & 0xf); 2537 trig_based_txf[ac].mu_time = 2538 cpu_to_le16(mu_edca->mu_edca_timer); 2539 } 2540 2541 return mu_edca_enabled; 2542 } 2543 2544 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2545 { 2546 const struct ieee80211_supported_band *sband; 2547 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2548 2549 /* This capability is the same for all bands, 2550 * so take it from one of them. 2551 */ 2552 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2553 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2554 2555 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2556 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2557 } 2558 2559 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2560 struct ieee80211_link_sta *link_sta) 2561 { 2562 u8 *mac_cap_info = 2563 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2564 __le32 htc_flags = 0; 2565 2566 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2567 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2568 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2569 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2570 u8 link_adap = 2571 ((mac_cap_info[2] & 2572 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2573 (mac_cap_info[1] & 2574 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2575 2576 if (link_adap == 2) 2577 htc_flags |= 2578 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2579 else if (link_adap == 3) 2580 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2581 } 2582 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2583 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2584 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2585 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2586 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2587 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2588 2589 return htc_flags; 2590 } 2591 2592 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2593 struct ieee80211_vif *vif, u8 sta_id) 2594 { 2595 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2596 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2597 .sta_id = sta_id, 2598 .tid_limit = IWL_MAX_TID_COUNT, 2599 .bss_color = vif->bss_conf.he_bss_color.color, 2600 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2601 .frame_time_rts_th = 2602 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2603 }; 2604 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2605 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2606 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2607 int size; 2608 struct ieee80211_sta *sta; 2609 u32 flags; 2610 int i; 2611 void *cmd; 2612 2613 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2614 ver = 1; 2615 2616 switch (ver) { 2617 case 1: 2618 /* same layout as v2 except some data at the end */ 2619 cmd = &sta_ctxt_cmd_v2; 2620 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2621 break; 2622 case 2: 2623 cmd = &sta_ctxt_cmd_v2; 2624 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2625 break; 2626 case 3: 2627 cmd = &sta_ctxt_cmd; 2628 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2629 break; 2630 default: 2631 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2632 return; 2633 } 2634 2635 rcu_read_lock(); 2636 2637 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2638 if (IS_ERR_OR_NULL(sta)) { 2639 rcu_read_unlock(); 2640 WARN(1, "Can't find STA to configure HE\n"); 2641 return; 2642 } 2643 2644 if (!sta->deflink.he_cap.has_he) { 2645 rcu_read_unlock(); 2646 return; 2647 } 2648 2649 flags = 0; 2650 2651 /* Block 26-tone RU OFDMA transmissions */ 2652 if (mvmvif->deflink.he_ru_2mhz_block) 2653 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2654 2655 /* HTC flags */ 2656 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2657 2658 /* PPE Thresholds */ 2659 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2660 flags |= STA_CTXT_HE_PACKET_EXT; 2661 2662 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2663 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2664 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2665 2666 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2667 IEEE80211_HE_MAC_CAP2_ACK_EN) 2668 flags |= STA_CTXT_HE_ACK_ENABLED; 2669 2670 rcu_read_unlock(); 2671 2672 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2673 &sta_ctxt_cmd.trig_based_txf[0])) 2674 flags |= STA_CTXT_HE_MU_EDCA_CW; 2675 2676 if (vif->bss_conf.uora_exists) { 2677 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2678 2679 sta_ctxt_cmd.rand_alloc_ecwmin = 2680 vif->bss_conf.uora_ocw_range & 0x7; 2681 sta_ctxt_cmd.rand_alloc_ecwmax = 2682 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2683 } 2684 2685 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2686 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2687 2688 if (vif->bss_conf.nontransmitted) { 2689 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2690 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2691 vif->bss_conf.transmitter_bssid); 2692 sta_ctxt_cmd.max_bssid_indicator = 2693 vif->bss_conf.bssid_indicator; 2694 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2695 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2696 sta_ctxt_cmd.profile_periodicity = 2697 vif->bss_conf.profile_periodicity; 2698 } 2699 2700 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2701 2702 if (ver < 3) { 2703 /* fields before pkt_ext */ 2704 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2705 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2706 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2707 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2708 2709 /* pkt_ext */ 2710 for (i = 0; 2711 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2712 i++) { 2713 u8 bw; 2714 2715 for (bw = 0; 2716 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2717 bw++) { 2718 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2719 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2720 2721 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2722 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2723 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2724 } 2725 } 2726 2727 /* fields after pkt_ext */ 2728 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2729 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2730 sizeof(sta_ctxt_cmd_v2) - 2731 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2732 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2733 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2734 (u8 *)&sta_ctxt_cmd + 2735 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2736 sizeof(sta_ctxt_cmd) - 2737 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2738 sta_ctxt_cmd_v2.reserved3 = 0; 2739 } 2740 2741 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2742 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2743 } 2744 2745 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2746 u32 duration_override, unsigned int link_id) 2747 { 2748 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2749 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2750 2751 if (duration_override > duration) 2752 duration = duration_override; 2753 2754 /* Try really hard to protect the session and hear a beacon 2755 * The new session protection command allows us to protect the 2756 * session for a much longer time since the firmware will internally 2757 * create two events: a 300TU one with a very high priority that 2758 * won't be fragmented which should be enough for 99% of the cases, 2759 * and another one (which we configure here to be 900TU long) which 2760 * will have a slightly lower priority, but more importantly, can be 2761 * fragmented so that it'll allow other activities to run. 2762 */ 2763 if (fw_has_capa(&mvm->fw->ucode_capa, 2764 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2765 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2766 min_duration, false, 2767 link_id); 2768 else 2769 iwl_mvm_protect_session(mvm, vif, duration, 2770 min_duration, 500, false); 2771 } 2772 2773 /* Handle association common part to MLD and non-MLD modes */ 2774 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2775 struct ieee80211_vif *vif, 2776 u64 changes) 2777 { 2778 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2779 int ret; 2780 int link_id; 2781 2782 /* The firmware tracks the MU-MIMO group on its own. 2783 * However, on HW restart we should restore this data. 2784 */ 2785 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2786 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2787 ret = iwl_mvm_update_mu_groups(mvm, vif); 2788 if (ret) 2789 IWL_ERR(mvm, 2790 "failed to update VHT MU_MIMO groups\n"); 2791 } 2792 2793 iwl_mvm_recalc_multicast(mvm); 2794 2795 /* reset rssi values */ 2796 for_each_mvm_vif_valid_link(mvmvif, link_id) 2797 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2798 2799 iwl_mvm_bt_coex_vif_change(mvm); 2800 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2801 IEEE80211_SMPS_AUTOMATIC); 2802 if (fw_has_capa(&mvm->fw->ucode_capa, 2803 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2804 iwl_mvm_config_scan(mvm); 2805 } 2806 2807 /* Execute the common part for MLD and non-MLD modes */ 2808 void 2809 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2810 struct ieee80211_vif *vif, 2811 struct ieee80211_bss_conf *link_conf, 2812 u64 changes) 2813 { 2814 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2815 int ret; 2816 2817 if (changes & BSS_CHANGED_BEACON_INFO) { 2818 /* We received a beacon from the associated AP so 2819 * remove the session protection. 2820 */ 2821 iwl_mvm_stop_session_protection(mvm, vif); 2822 2823 iwl_mvm_sf_update(mvm, vif, false); 2824 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2825 } 2826 2827 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2828 /* Send power command on every beacon change, 2829 * because we may have not enabled beacon abort yet. 2830 */ 2831 BSS_CHANGED_BEACON_INFO)) { 2832 ret = iwl_mvm_power_update_mac(mvm); 2833 if (ret) 2834 IWL_ERR(mvm, "failed to update power mode\n"); 2835 } 2836 2837 if (changes & BSS_CHANGED_CQM) { 2838 struct iwl_mvm_vif_link_info *link_info = 2839 mvmvif->link[link_conf->link_id]; 2840 2841 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2842 if (link_info) 2843 link_info->bf_data.last_cqm_event = 0; 2844 2845 if (mvmvif->bf_enabled) { 2846 /* FIXME: need to update per link when FW API will 2847 * support it 2848 */ 2849 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2850 if (ret) 2851 IWL_ERR(mvm, 2852 "failed to update CQM thresholds\n"); 2853 } 2854 } 2855 2856 if (changes & BSS_CHANGED_BANDWIDTH) 2857 iwl_mvm_update_link_smps(vif, link_conf); 2858 2859 if (changes & BSS_CHANGED_TPE) { 2860 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2861 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2862 link_conf, 2863 false); 2864 } 2865 } 2866 2867 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2868 struct ieee80211_vif *vif, 2869 struct ieee80211_bss_conf *bss_conf, 2870 u64 changes) 2871 { 2872 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2873 int ret; 2874 int i; 2875 2876 /* 2877 * Re-calculate the tsf id, as the leader-follower relations depend 2878 * on the beacon interval, which was not known when the station 2879 * interface was added. 2880 */ 2881 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2882 if ((vif->bss_conf.he_support && 2883 !iwlwifi_mod_params.disable_11ax)) 2884 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2885 2886 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2887 } 2888 2889 /* Update MU EDCA params */ 2890 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2891 vif->cfg.assoc && 2892 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2893 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2894 2895 /* 2896 * If we're not associated yet, take the (new) BSSID before associating 2897 * so the firmware knows. If we're already associated, then use the old 2898 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2899 * branch for disassociation below. 2900 */ 2901 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2902 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2903 2904 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2905 if (ret) 2906 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2907 2908 /* after sending it once, adopt mac80211 data */ 2909 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2910 mvmvif->associated = vif->cfg.assoc; 2911 2912 if (changes & BSS_CHANGED_ASSOC) { 2913 if (vif->cfg.assoc) { 2914 mvmvif->session_prot_connection_loss = false; 2915 2916 /* clear statistics to get clean beacon counter */ 2917 iwl_mvm_request_statistics(mvm, true); 2918 for_each_mvm_vif_valid_link(mvmvif, i) 2919 memset(&mvmvif->link[i]->beacon_stats, 0, 2920 sizeof(mvmvif->link[i]->beacon_stats)); 2921 2922 /* add quota for this interface */ 2923 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2924 if (ret) { 2925 IWL_ERR(mvm, "failed to update quotas\n"); 2926 return; 2927 } 2928 2929 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2930 &mvm->status) && 2931 !fw_has_capa(&mvm->fw->ucode_capa, 2932 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2933 /* 2934 * If we're restarting then the firmware will 2935 * obviously have lost synchronisation with 2936 * the AP. It will attempt to synchronise by 2937 * itself, but we can make it more reliable by 2938 * scheduling a session protection time event. 2939 * 2940 * The firmware needs to receive a beacon to 2941 * catch up with synchronisation, use 110% of 2942 * the beacon interval. 2943 * 2944 * Set a large maximum delay to allow for more 2945 * than a single interface. 2946 * 2947 * For new firmware versions, rely on the 2948 * firmware. This is relevant for DCM scenarios 2949 * only anyway. 2950 */ 2951 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2952 iwl_mvm_protect_session(mvm, vif, dur, dur, 2953 5 * dur, false); 2954 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2955 &mvm->status) && 2956 !vif->bss_conf.dtim_period) { 2957 /* 2958 * If we're not restarting and still haven't 2959 * heard a beacon (dtim period unknown) then 2960 * make sure we still have enough minimum time 2961 * remaining in the time event, since the auth 2962 * might actually have taken quite a while 2963 * (especially for SAE) and so the remaining 2964 * time could be small without us having heard 2965 * a beacon yet. 2966 */ 2967 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2968 } 2969 2970 iwl_mvm_sf_update(mvm, vif, false); 2971 iwl_mvm_power_vif_assoc(mvm, vif); 2972 if (vif->p2p) { 2973 iwl_mvm_update_smps(mvm, vif, 2974 IWL_MVM_SMPS_REQ_PROT, 2975 IEEE80211_SMPS_DYNAMIC, 0); 2976 } 2977 } else if (mvmvif->deflink.ap_sta_id != IWL_INVALID_STA) { 2978 iwl_mvm_mei_host_disassociated(mvm); 2979 /* 2980 * If update fails - SF might be running in associated 2981 * mode while disassociated - which is forbidden. 2982 */ 2983 ret = iwl_mvm_sf_update(mvm, vif, false); 2984 WARN_ONCE(ret && 2985 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2986 &mvm->status), 2987 "Failed to update SF upon disassociation\n"); 2988 2989 /* remove quota for this interface */ 2990 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2991 if (ret) 2992 IWL_ERR(mvm, "failed to update quotas\n"); 2993 2994 /* this will take the cleared BSSID from bss_conf */ 2995 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2996 if (ret) 2997 IWL_ERR(mvm, 2998 "failed to update MAC %pM (clear after unassoc)\n", 2999 vif->addr); 3000 } 3001 3002 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 3003 } 3004 3005 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 3006 changes); 3007 } 3008 3009 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 3010 struct ieee80211_vif *vif, 3011 int *ret) 3012 { 3013 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3015 int i; 3016 3017 lockdep_assert_held(&mvm->mutex); 3018 3019 mvmvif->ap_assoc_sta_count = 0; 3020 3021 /* must be set before quota calculations */ 3022 mvmvif->ap_ibss_active = true; 3023 3024 /* send all the early keys to the device now */ 3025 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3026 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 3027 3028 if (!key) 3029 continue; 3030 3031 mvmvif->ap_early_keys[i] = NULL; 3032 3033 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 3034 if (*ret) 3035 return true; 3036 } 3037 3038 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3039 iwl_mvm_vif_set_low_latency(mvmvif, true, 3040 LOW_LATENCY_VIF_TYPE); 3041 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 3042 } 3043 3044 /* power updated needs to be done before quotas */ 3045 iwl_mvm_power_update_mac(mvm); 3046 3047 return false; 3048 } 3049 3050 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 3051 struct ieee80211_vif *vif, 3052 struct ieee80211_bss_conf *link_conf) 3053 { 3054 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3055 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3056 int ret; 3057 3058 mutex_lock(&mvm->mutex); 3059 3060 /* 3061 * Re-calculate the tsf id, as the leader-follower relations depend on 3062 * the beacon interval, which was not known when the AP interface 3063 * was added. 3064 */ 3065 if (vif->type == NL80211_IFTYPE_AP) 3066 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 3067 3068 /* For older devices need to send beacon template before adding mac 3069 * context. For the newer, the beacon is a resource that belongs to a 3070 * MAC, so need to send beacon template after adding the mac. 3071 */ 3072 if (mvm->trans->mac_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 3073 /* Add the mac context */ 3074 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3075 if (ret) 3076 goto out_unlock; 3077 3078 /* Send the beacon template */ 3079 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3080 if (ret) 3081 goto out_unlock; 3082 } else { 3083 /* Send the beacon template */ 3084 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3085 if (ret) 3086 goto out_unlock; 3087 3088 /* Add the mac context */ 3089 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3090 if (ret) 3091 goto out_unlock; 3092 } 3093 3094 /* Perform the binding */ 3095 ret = iwl_mvm_binding_add_vif(mvm, vif); 3096 if (ret) 3097 goto out_remove; 3098 3099 /* 3100 * This is not very nice, but the simplest: 3101 * For older FWs adding the mcast sta before the bcast station may 3102 * cause assert 0x2b00. 3103 * This is fixed in later FW so make the order of removal depend on 3104 * the TLV 3105 */ 3106 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3107 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3108 if (ret) 3109 goto out_unbind; 3110 /* 3111 * Send the bcast station. At this stage the TBTT and DTIM time 3112 * events are added and applied to the scheduler 3113 */ 3114 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3115 if (ret) { 3116 iwl_mvm_rm_mcast_sta(mvm, vif); 3117 goto out_unbind; 3118 } 3119 } else { 3120 /* 3121 * Send the bcast station. At this stage the TBTT and DTIM time 3122 * events are added and applied to the scheduler 3123 */ 3124 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3125 if (ret) 3126 goto out_unbind; 3127 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3128 if (ret) { 3129 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3130 goto out_unbind; 3131 } 3132 } 3133 3134 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3135 goto out_failed; 3136 3137 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3138 if (ret) 3139 goto out_failed; 3140 3141 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3142 if (vif->p2p && mvm->p2p_device_vif) 3143 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3144 3145 iwl_mvm_bt_coex_vif_change(mvm); 3146 3147 /* we don't support TDLS during DCM */ 3148 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3149 iwl_mvm_teardown_tdls_peers(mvm); 3150 3151 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3152 3153 goto out_unlock; 3154 3155 out_failed: 3156 iwl_mvm_power_update_mac(mvm); 3157 mvmvif->ap_ibss_active = false; 3158 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3159 iwl_mvm_rm_mcast_sta(mvm, vif); 3160 out_unbind: 3161 iwl_mvm_binding_remove_vif(mvm, vif); 3162 out_remove: 3163 iwl_mvm_mac_ctxt_remove(mvm, vif); 3164 out_unlock: 3165 mutex_unlock(&mvm->mutex); 3166 return ret; 3167 } 3168 3169 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3170 struct ieee80211_vif *vif, 3171 struct ieee80211_bss_conf *link_conf) 3172 { 3173 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3174 } 3175 3176 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3177 struct ieee80211_vif *vif) 3178 { 3179 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3180 } 3181 3182 /* Common part for MLD and non-MLD ops */ 3183 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3184 struct ieee80211_vif *vif) 3185 { 3186 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3187 3188 lockdep_assert_held(&mvm->mutex); 3189 3190 iwl_mvm_prepare_mac_removal(mvm, vif); 3191 3192 /* Handle AP stop while in CSA */ 3193 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3194 iwl_mvm_remove_time_event(mvm, mvmvif, 3195 &mvmvif->time_event_data); 3196 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3197 mvmvif->csa_countdown = false; 3198 } 3199 3200 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3201 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3202 mvm->csa_tx_block_bcn_timeout = 0; 3203 } 3204 3205 mvmvif->ap_ibss_active = false; 3206 mvm->ap_last_beacon_gp2 = 0; 3207 3208 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3209 iwl_mvm_vif_set_low_latency(mvmvif, false, 3210 LOW_LATENCY_VIF_TYPE); 3211 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3212 } 3213 3214 iwl_mvm_bt_coex_vif_change(mvm); 3215 } 3216 3217 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3218 struct ieee80211_vif *vif, 3219 struct ieee80211_bss_conf *link_conf) 3220 { 3221 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3222 3223 guard(mvm)(mvm); 3224 3225 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3226 3227 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3228 if (vif->p2p && mvm->p2p_device_vif) 3229 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3230 3231 iwl_mvm_update_quotas(mvm, false, NULL); 3232 3233 iwl_mvm_ftm_responder_clear(mvm, vif); 3234 3235 /* 3236 * This is not very nice, but the simplest: 3237 * For older FWs removing the mcast sta before the bcast station may 3238 * cause assert 0x2b00. 3239 * This is fixed in later FW (which will stop beaconing when removing 3240 * bcast station). 3241 * So make the order of removal depend on the TLV 3242 */ 3243 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3244 iwl_mvm_rm_mcast_sta(mvm, vif); 3245 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3246 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3247 iwl_mvm_rm_mcast_sta(mvm, vif); 3248 iwl_mvm_binding_remove_vif(mvm, vif); 3249 3250 iwl_mvm_power_update_mac(mvm); 3251 3252 iwl_mvm_mac_ctxt_remove(mvm, vif); 3253 } 3254 3255 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3256 struct ieee80211_vif *vif, 3257 struct ieee80211_bss_conf *link_conf) 3258 { 3259 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3260 } 3261 3262 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3263 struct ieee80211_vif *vif) 3264 { 3265 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3266 } 3267 3268 static void 3269 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3270 struct ieee80211_vif *vif, 3271 struct ieee80211_bss_conf *bss_conf, 3272 u64 changes) 3273 { 3274 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3275 3276 /* Changes will be applied when the AP/IBSS is started */ 3277 if (!mvmvif->ap_ibss_active) 3278 return; 3279 3280 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3281 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3282 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3283 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3284 3285 /* Need to send a new beacon template to the FW */ 3286 if (changes & BSS_CHANGED_BEACON && 3287 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3288 IWL_WARN(mvm, "Failed updating beacon data\n"); 3289 3290 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3291 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3292 3293 if (ret) 3294 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3295 ret); 3296 } 3297 3298 } 3299 3300 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3301 struct ieee80211_vif *vif, 3302 struct ieee80211_bss_conf *bss_conf, 3303 u64 changes) 3304 { 3305 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3306 3307 guard(mvm)(mvm); 3308 3309 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3310 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3311 3312 switch (vif->type) { 3313 case NL80211_IFTYPE_STATION: 3314 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3315 break; 3316 case NL80211_IFTYPE_AP: 3317 case NL80211_IFTYPE_ADHOC: 3318 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3319 break; 3320 case NL80211_IFTYPE_MONITOR: 3321 if (changes & BSS_CHANGED_MU_GROUPS) 3322 iwl_mvm_update_mu_groups(mvm, vif); 3323 break; 3324 default: 3325 /* shouldn't happen */ 3326 WARN_ON_ONCE(1); 3327 } 3328 3329 if (changes & BSS_CHANGED_TXPOWER) { 3330 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3331 bss_conf->txpower); 3332 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower); 3333 } 3334 } 3335 3336 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3337 struct ieee80211_scan_request *hw_req) 3338 { 3339 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3340 3341 if (hw_req->req.n_channels == 0 || 3342 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3343 return -EINVAL; 3344 3345 guard(mvm)(mvm); 3346 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3347 } 3348 3349 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3350 struct ieee80211_vif *vif) 3351 { 3352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3353 3354 guard(mvm)(mvm); 3355 3356 /* Due to a race condition, it's possible that mac80211 asks 3357 * us to stop a hw_scan when it's already stopped. This can 3358 * happen, for instance, if we stopped the scan ourselves, 3359 * called ieee80211_scan_completed() and the userspace called 3360 * cancel scan before ieee80211_scan_work() could run. 3361 * To handle that, simply return if the scan is not running. 3362 */ 3363 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3364 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3365 } 3366 3367 void 3368 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3369 struct ieee80211_sta *sta, u16 tids, 3370 int num_frames, 3371 enum ieee80211_frame_release_type reason, 3372 bool more_data) 3373 { 3374 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3375 3376 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3377 3378 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3379 tids, more_data, false); 3380 } 3381 3382 void 3383 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3384 struct ieee80211_sta *sta, u16 tids, 3385 int num_frames, 3386 enum ieee80211_frame_release_type reason, 3387 bool more_data) 3388 { 3389 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3390 3391 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3392 3393 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3394 tids, more_data, true); 3395 } 3396 3397 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3398 enum sta_notify_cmd cmd, 3399 struct ieee80211_sta *sta) 3400 { 3401 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3402 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3403 unsigned long txqs = 0, tids = 0; 3404 int tid; 3405 3406 /* 3407 * If we have TVQM then we get too high queue numbers - luckily 3408 * we really shouldn't get here with that because such hardware 3409 * should have firmware supporting buffer station offload. 3410 */ 3411 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3412 return; 3413 3414 spin_lock_bh(&mvmsta->lock); 3415 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3416 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3417 3418 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3419 continue; 3420 3421 __set_bit(tid_data->txq_id, &txqs); 3422 3423 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3424 continue; 3425 3426 __set_bit(tid, &tids); 3427 } 3428 3429 switch (cmd) { 3430 case STA_NOTIFY_SLEEP: 3431 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3432 ieee80211_sta_set_buffered(sta, tid, true); 3433 3434 if (txqs) 3435 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3436 /* 3437 * The fw updates the STA to be asleep. Tx packets on the Tx 3438 * queues to this station will not be transmitted. The fw will 3439 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3440 */ 3441 break; 3442 case STA_NOTIFY_AWAKE: 3443 if (WARN_ON(mvmsta->deflink.sta_id == IWL_INVALID_STA)) 3444 break; 3445 3446 if (txqs) 3447 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3448 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3449 break; 3450 default: 3451 break; 3452 } 3453 spin_unlock_bh(&mvmsta->lock); 3454 } 3455 3456 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3457 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3458 { 3459 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3460 } 3461 3462 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3463 { 3464 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3465 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3466 struct ieee80211_sta *sta; 3467 struct iwl_mvm_sta *mvmsta; 3468 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3469 3470 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3471 return; 3472 3473 rcu_read_lock(); 3474 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3475 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3476 rcu_read_unlock(); 3477 return; 3478 } 3479 3480 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3481 3482 if (!mvmsta->vif || 3483 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3484 rcu_read_unlock(); 3485 return; 3486 } 3487 3488 if (mvmsta->sleeping != sleeping) { 3489 mvmsta->sleeping = sleeping; 3490 __iwl_mvm_mac_sta_notify(mvm->hw, 3491 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3492 sta); 3493 ieee80211_sta_ps_transition(sta, sleeping); 3494 } 3495 3496 if (sleeping) { 3497 switch (notif->type) { 3498 case IWL_MVM_PM_EVENT_AWAKE: 3499 case IWL_MVM_PM_EVENT_ASLEEP: 3500 break; 3501 case IWL_MVM_PM_EVENT_UAPSD: 3502 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3503 break; 3504 case IWL_MVM_PM_EVENT_PS_POLL: 3505 ieee80211_sta_pspoll(sta); 3506 break; 3507 default: 3508 break; 3509 } 3510 } 3511 3512 rcu_read_unlock(); 3513 } 3514 3515 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3516 struct ieee80211_vif *vif, 3517 struct ieee80211_sta *sta) 3518 { 3519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3520 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3521 unsigned int link_id; 3522 3523 lockdep_assert_wiphy(mvm->hw->wiphy); 3524 3525 /* 3526 * This is called before mac80211 does RCU synchronisation, 3527 * so here we already invalidate our internal RCU-protected 3528 * station pointer. The rest of the code will thus no longer 3529 * be able to find the station this way, and we don't rely 3530 * on further RCU synchronisation after the sta_state() 3531 * callback deleted the station. 3532 * Since there's mvm->mutex here, no need to have RCU lock for 3533 * mvm_sta->link access. 3534 */ 3535 guard(mvm)(mvm); 3536 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3537 struct iwl_mvm_link_sta *link_sta; 3538 u32 sta_id; 3539 3540 if (!mvm_sta->link[link_id]) 3541 continue; 3542 3543 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3544 lockdep_is_held(&mvm->mutex)); 3545 sta_id = link_sta->sta_id; 3546 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3547 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3548 ERR_PTR(-ENOENT)); 3549 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3550 } 3551 } 3552 } 3553 3554 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3555 const u8 *bssid) 3556 { 3557 int i; 3558 3559 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3560 struct iwl_mvm_tcm_mac *mdata; 3561 3562 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3563 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3564 mdata->opened_rx_ba_sessions = false; 3565 } 3566 3567 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3568 return; 3569 3570 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3571 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3572 return; 3573 } 3574 3575 if (!vif->p2p && 3576 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3577 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3578 return; 3579 } 3580 3581 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3582 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3583 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3584 return; 3585 } 3586 } 3587 3588 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3589 } 3590 3591 static void 3592 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3593 struct ieee80211_vif *vif, u8 *peer_addr, 3594 enum nl80211_tdls_operation action) 3595 { 3596 struct iwl_fw_dbg_trigger_tlv *trig; 3597 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3598 3599 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3600 FW_DBG_TRIGGER_TDLS); 3601 if (!trig) 3602 return; 3603 3604 tdls_trig = (void *)trig->data; 3605 3606 if (!(tdls_trig->action_bitmap & BIT(action))) 3607 return; 3608 3609 if (tdls_trig->peer_mode && 3610 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3611 return; 3612 3613 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3614 "TDLS event occurred, peer %pM, action %d", 3615 peer_addr, action); 3616 } 3617 3618 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3619 bool tolerated; 3620 }; 3621 3622 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3623 struct cfg80211_bss *bss, 3624 void *_data) 3625 { 3626 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3627 const struct cfg80211_bss_ies *ies; 3628 const struct element *elem; 3629 3630 rcu_read_lock(); 3631 ies = rcu_dereference(bss->ies); 3632 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3633 ies->len); 3634 3635 if (!elem || elem->datalen < 10 || 3636 !(elem->data[10] & 3637 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3638 data->tolerated = false; 3639 } 3640 rcu_read_unlock(); 3641 } 3642 3643 static void 3644 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3645 struct ieee80211_vif *vif, 3646 unsigned int link_id, 3647 struct ieee80211_bss_conf *link_conf) 3648 { 3649 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3650 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3651 .tolerated = true, 3652 }; 3653 3654 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3655 !mvmvif->link[link_id])) 3656 return; 3657 3658 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3659 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3660 return; 3661 } 3662 3663 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3664 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3665 &iter_data); 3666 3667 /* 3668 * If there is at least one AP on radar channel that cannot 3669 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3670 */ 3671 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3672 } 3673 3674 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3675 struct ieee80211_vif *vif) 3676 { 3677 struct ieee80211_supported_band *sband; 3678 const struct ieee80211_sta_he_cap *he_cap; 3679 3680 if (vif->type != NL80211_IFTYPE_STATION) 3681 return; 3682 3683 if (!mvm->cca_40mhz_workaround) 3684 return; 3685 3686 /* decrement and check that we reached zero */ 3687 mvm->cca_40mhz_workaround--; 3688 if (mvm->cca_40mhz_workaround) 3689 return; 3690 3691 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3692 3693 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3694 3695 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3696 3697 if (he_cap) { 3698 /* we know that ours is writable */ 3699 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3700 3701 he->he_cap_elem.phy_cap_info[0] |= 3702 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3703 } 3704 } 3705 3706 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3707 struct ieee80211_vif *vif, 3708 struct iwl_mvm_sta *mvm_sta) 3709 { 3710 #if IS_ENABLED(CONFIG_IWLMEI) 3711 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3712 struct iwl_mei_conn_info conn_info = { 3713 .ssid_len = vif->cfg.ssid_len, 3714 }; 3715 3716 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3717 return; 3718 3719 if (!mvm->mei_registered) 3720 return; 3721 3722 /* FIXME: MEI needs to be updated for MLO */ 3723 if (!vif->bss_conf.chanreq.oper.chan) 3724 return; 3725 3726 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3727 3728 switch (mvm_sta->pairwise_cipher) { 3729 case WLAN_CIPHER_SUITE_TKIP: 3730 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3731 break; 3732 case WLAN_CIPHER_SUITE_CCMP: 3733 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3734 break; 3735 case WLAN_CIPHER_SUITE_GCMP: 3736 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3737 break; 3738 case WLAN_CIPHER_SUITE_GCMP_256: 3739 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3740 break; 3741 case 0: 3742 /* open profile */ 3743 break; 3744 default: 3745 /* cipher not supported, don't send anything to iwlmei */ 3746 return; 3747 } 3748 3749 switch (mvmvif->rekey_data.akm) { 3750 case WLAN_AKM_SUITE_SAE & 0xff: 3751 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3752 break; 3753 case WLAN_AKM_SUITE_PSK & 0xff: 3754 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3755 break; 3756 case WLAN_AKM_SUITE_8021X & 0xff: 3757 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3758 break; 3759 case 0: 3760 /* open profile */ 3761 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3762 break; 3763 default: 3764 /* auth method / AKM not supported */ 3765 /* TODO: All the FT vesions of these? */ 3766 return; 3767 } 3768 3769 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3770 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3771 3772 /* TODO: add support for collocated AP data */ 3773 iwl_mei_host_associated(&conn_info, NULL); 3774 #endif 3775 } 3776 3777 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3778 struct ieee80211_vif *vif, 3779 bool force_assoc_off) 3780 { 3781 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3782 } 3783 3784 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3785 struct ieee80211_vif *vif, 3786 struct ieee80211_sta *sta, 3787 enum ieee80211_sta_state old_state, 3788 enum ieee80211_sta_state new_state) 3789 { 3790 static const struct iwl_mvm_sta_state_ops callbacks = { 3791 .add_sta = iwl_mvm_add_sta, 3792 .update_sta = iwl_mvm_update_sta, 3793 .rm_sta = iwl_mvm_rm_sta, 3794 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3795 }; 3796 3797 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3798 &callbacks); 3799 } 3800 3801 /* FIXME: temporary making two assumptions in all sta handling functions: 3802 * (1) when setting sta state, the link exists and protected 3803 * (2) if a link is valid in sta then it's valid in vif (can 3804 * use same index in the link array) 3805 */ 3806 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3807 struct ieee80211_vif *vif, 3808 struct ieee80211_sta *sta) 3809 { 3810 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3811 unsigned int link_id; 3812 3813 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3814 struct ieee80211_bss_conf *conf = 3815 link_conf_dereference_check(vif, link_id); 3816 struct ieee80211_link_sta *link_sta = 3817 link_sta_dereference_check(sta, link_id); 3818 3819 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3820 continue; 3821 3822 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3823 mvmvif->link[link_id]->phy_ctxt->channel->band); 3824 } 3825 } 3826 3827 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3828 struct ieee80211_vif *vif, 3829 struct ieee80211_sta *sta) 3830 { 3831 struct ieee80211_link_sta *link_sta; 3832 unsigned int link_id; 3833 3834 /* Beacon interval check - firmware will crash if the beacon 3835 * interval is less than 16. We can't avoid connecting at all, 3836 * so refuse the station state change, this will cause mac80211 3837 * to abandon attempts to connect to this AP, and eventually 3838 * wpa_s will blocklist the AP... 3839 */ 3840 3841 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3842 struct ieee80211_bss_conf *link_conf = 3843 link_conf_dereference_protected(vif, link_id); 3844 3845 if (!link_conf) 3846 continue; 3847 3848 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3849 IWL_ERR(mvm, 3850 "Beacon interval %d for AP %pM is too small\n", 3851 link_conf->beacon_int, link_sta->addr); 3852 return false; 3853 } 3854 3855 link_conf->he_support = link_sta->he_cap.has_he; 3856 } 3857 3858 return true; 3859 } 3860 3861 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3862 struct ieee80211_vif *vif, 3863 struct ieee80211_sta *sta, 3864 bool is_sta) 3865 { 3866 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3867 struct ieee80211_link_sta *link_sta; 3868 unsigned int link_id; 3869 3870 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3871 struct ieee80211_bss_conf *link_conf = 3872 link_conf_dereference_protected(vif, link_id); 3873 3874 if (!link_conf || !mvmvif->link[link_id]) 3875 continue; 3876 3877 link_conf->he_support = link_sta->he_cap.has_he; 3878 3879 if (is_sta) { 3880 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3881 if (link_sta->he_cap.has_he) 3882 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3883 link_id, 3884 link_conf); 3885 } 3886 } 3887 } 3888 3889 static int 3890 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3891 struct ieee80211_vif *vif, 3892 struct ieee80211_sta *sta, 3893 const struct iwl_mvm_sta_state_ops *callbacks) 3894 { 3895 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3896 struct ieee80211_link_sta *link_sta; 3897 unsigned int i; 3898 int ret; 3899 3900 lockdep_assert_held(&mvm->mutex); 3901 3902 if (vif->type == NL80211_IFTYPE_STATION && 3903 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3904 return -EINVAL; 3905 3906 if (sta->tdls && 3907 (vif->p2p || 3908 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_TDLS_STA_COUNT || 3909 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3910 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3911 return -EBUSY; 3912 } 3913 3914 ret = callbacks->add_sta(mvm, vif, sta); 3915 if (sta->tdls && ret == 0) { 3916 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3917 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3918 NL80211_TDLS_SETUP); 3919 } 3920 3921 if (ret) 3922 return ret; 3923 3924 for_each_sta_active_link(vif, sta, link_sta, i) 3925 link_sta->agg.max_rc_amsdu_len = 1; 3926 3927 ieee80211_sta_recalc_aggregates(sta); 3928 3929 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3930 mvmvif->ap_sta = sta; 3931 3932 /* 3933 * Initialize the rates here already - this really tells 3934 * the firmware only what the supported legacy rates are 3935 * (may be) since it's initialized already from what the 3936 * AP advertised in the beacon/probe response. This will 3937 * allow the firmware to send auth/assoc frames with one 3938 * of the supported rates already, rather than having to 3939 * use a mandatory rate. 3940 * If we're the AP, we'll just assume mandatory rates at 3941 * this point, but we know nothing about the STA anyway. 3942 */ 3943 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3944 3945 return 0; 3946 } 3947 3948 static int 3949 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3950 struct iwl_mvm *mvm, 3951 struct ieee80211_vif *vif, 3952 struct ieee80211_sta *sta, 3953 const struct iwl_mvm_sta_state_ops *callbacks) 3954 { 3955 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3956 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3957 struct ieee80211_link_sta *link_sta; 3958 unsigned int link_id; 3959 3960 lockdep_assert_held(&mvm->mutex); 3961 3962 if (vif->type == NL80211_IFTYPE_AP) { 3963 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3964 mvmvif->ap_assoc_sta_count++; 3965 callbacks->mac_ctxt_changed(mvm, vif, false); 3966 3967 /* since the below is not for MLD API, it's ok to use 3968 * the default bss_conf 3969 */ 3970 if (!mvm->mld_api_is_used && 3971 (vif->bss_conf.he_support && 3972 !iwlwifi_mod_params.disable_11ax)) 3973 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3974 } else if (vif->type == NL80211_IFTYPE_STATION) { 3975 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3976 3977 callbacks->mac_ctxt_changed(mvm, vif, false); 3978 3979 if (!mvm->mld_api_is_used) 3980 goto out; 3981 3982 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3983 struct ieee80211_bss_conf *link_conf = 3984 link_conf_dereference_protected(vif, link_id); 3985 3986 if (WARN_ON(!link_conf)) 3987 return -EINVAL; 3988 if (!mvmvif->link[link_id]) 3989 continue; 3990 3991 iwl_mvm_link_changed(mvm, vif, link_conf, 3992 LINK_CONTEXT_MODIFY_ALL & 3993 ~LINK_CONTEXT_MODIFY_ACTIVE, 3994 true); 3995 } 3996 } 3997 3998 out: 3999 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4000 4001 return callbacks->update_sta(mvm, vif, sta); 4002 } 4003 4004 static int 4005 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 4006 struct ieee80211_vif *vif, 4007 struct ieee80211_sta *sta, 4008 const struct iwl_mvm_sta_state_ops *callbacks) 4009 { 4010 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4011 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4012 4013 lockdep_assert_held(&mvm->mutex); 4014 4015 /* we don't support TDLS during DCM */ 4016 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4017 iwl_mvm_teardown_tdls_peers(mvm); 4018 4019 if (sta->tdls) { 4020 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4021 NL80211_TDLS_ENABLE_LINK); 4022 } else { 4023 /* enable beacon filtering */ 4024 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 4025 4026 mvmvif->authorized = 1; 4027 4028 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 4029 mvmvif->link_selection_res = vif->active_links; 4030 mvmvif->link_selection_primary = 4031 vif->active_links ? __ffs(vif->active_links) : 0; 4032 } 4033 4034 callbacks->mac_ctxt_changed(mvm, vif, false); 4035 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 4036 4037 memset(&mvmvif->last_esr_exit, 0, 4038 sizeof(mvmvif->last_esr_exit)); 4039 4040 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); 4041 4042 /* Block until FW notif will arrive */ 4043 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0); 4044 4045 /* when client is authorized (AP station marked as such), 4046 * try to enable the best link(s). 4047 */ 4048 if (vif->type == NL80211_IFTYPE_STATION && 4049 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4050 iwl_mvm_select_links(mvm, vif); 4051 } 4052 4053 mvm_sta->authorized = true; 4054 4055 /* MFP is set by default before the station is authorized. 4056 * Clear it here in case it's not used. 4057 */ 4058 if (!sta->mfp) { 4059 int ret = callbacks->update_sta(mvm, vif, sta); 4060 4061 if (ret) 4062 return ret; 4063 } 4064 4065 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4066 4067 return 0; 4068 } 4069 4070 static int 4071 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 4072 struct ieee80211_vif *vif, 4073 struct ieee80211_sta *sta, 4074 const struct iwl_mvm_sta_state_ops *callbacks) 4075 { 4076 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4077 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4078 4079 lockdep_assert_held(&mvm->mutex); 4080 4081 mvmsta->authorized = false; 4082 4083 /* once we move into assoc state, need to update rate scale to 4084 * disable using wide bandwidth 4085 */ 4086 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4087 4088 if (!sta->tdls) { 4089 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 4090 * yet to avoid sending high prio again for a little 4091 * time. 4092 */ 4093 mvmvif->authorized = 0; 4094 mvmvif->link_selection_res = 0; 4095 4096 /* disable beacon filtering */ 4097 iwl_mvm_disable_beacon_filter(mvm, vif); 4098 4099 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4100 &mvmvif->prevent_esr_done_wk); 4101 4102 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4103 &mvmvif->mlo_int_scan_wk); 4104 4105 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 4106 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4107 &mvmvif->unblock_esr_tmp_non_bss_wk); 4108 } 4109 4110 return 0; 4111 } 4112 4113 void iwl_mvm_smps_workaround(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4114 bool update) 4115 { 4116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4117 4118 if (!iwl_mvm_has_rlc_offload(mvm) || 4119 iwl_fw_lookup_cmd_ver(mvm->fw, MAC_PM_POWER_TABLE, 0) >= 2) 4120 return; 4121 4122 mvmvif->ps_disabled = !vif->cfg.ps; 4123 4124 if (update) 4125 iwl_mvm_power_update_mac(mvm); 4126 } 4127 4128 /* Common part for MLD and non-MLD modes */ 4129 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4130 struct ieee80211_vif *vif, 4131 struct ieee80211_sta *sta, 4132 enum ieee80211_sta_state old_state, 4133 enum ieee80211_sta_state new_state, 4134 const struct iwl_mvm_sta_state_ops *callbacks) 4135 { 4136 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4137 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4138 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4139 struct ieee80211_link_sta *link_sta; 4140 unsigned int link_id; 4141 int ret; 4142 4143 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4144 sta->addr, old_state, new_state); 4145 4146 /* 4147 * If we are in a STA removal flow and in DQA mode: 4148 * 4149 * This is after the sync_rcu part, so the queues have already been 4150 * flushed. No more TXs on their way in mac80211's path, and no more in 4151 * the queues. 4152 * Also, we won't be getting any new TX frames for this station. 4153 * What we might have are deferred TX frames that need to be taken care 4154 * of. 4155 * 4156 * Drop any still-queued deferred-frame before removing the STA, and 4157 * make sure the worker is no longer handling frames for this STA. 4158 */ 4159 if (old_state == IEEE80211_STA_NONE && 4160 new_state == IEEE80211_STA_NOTEXIST) { 4161 flush_work(&mvm->add_stream_wk); 4162 4163 /* 4164 * No need to make sure deferred TX indication is off since the 4165 * worker will already remove it if it was on 4166 */ 4167 4168 /* 4169 * Additionally, reset the 40 MHz capability if we disconnected 4170 * from the AP now. 4171 */ 4172 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4173 4174 /* Also free dup data just in case any assertions below fail */ 4175 kfree(mvm_sta->dup_data); 4176 } 4177 4178 mutex_lock(&mvm->mutex); 4179 4180 /* this would be a mac80211 bug ... but don't crash, unless we had a 4181 * firmware crash while we were activating a link, in which case it is 4182 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4183 * recovery flow since we spit tons of error messages anyway. 4184 */ 4185 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4186 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4187 !mvmvif->link[link_id]->phy_ctxt)) { 4188 mutex_unlock(&mvm->mutex); 4189 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4190 &mvm->status) ? 0 : -EINVAL; 4191 } 4192 } 4193 4194 /* track whether or not the station is associated */ 4195 mvm_sta->sta_state = new_state; 4196 4197 if (old_state == IEEE80211_STA_NOTEXIST && 4198 new_state == IEEE80211_STA_NONE) { 4199 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4200 callbacks); 4201 if (ret < 0) 4202 goto out_unlock; 4203 } else if (old_state == IEEE80211_STA_NONE && 4204 new_state == IEEE80211_STA_AUTH) { 4205 /* 4206 * EBS may be disabled due to previous failures reported by FW. 4207 * Reset EBS status here assuming environment has been changed. 4208 */ 4209 mvm->last_ebs_successful = true; 4210 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4211 ret = 0; 4212 } else if (old_state == IEEE80211_STA_AUTH && 4213 new_state == IEEE80211_STA_ASSOC) { 4214 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4215 callbacks); 4216 } else if (old_state == IEEE80211_STA_ASSOC && 4217 new_state == IEEE80211_STA_AUTHORIZED) { 4218 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4219 callbacks); 4220 iwl_mvm_smps_workaround(mvm, vif, true); 4221 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4222 new_state == IEEE80211_STA_ASSOC) { 4223 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4224 callbacks); 4225 } else if (old_state == IEEE80211_STA_ASSOC && 4226 new_state == IEEE80211_STA_AUTH) { 4227 if (vif->type == NL80211_IFTYPE_AP) { 4228 mvmvif->ap_assoc_sta_count--; 4229 callbacks->mac_ctxt_changed(mvm, vif, false); 4230 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4231 iwl_mvm_stop_session_protection(mvm, vif); 4232 ret = 0; 4233 } else if (old_state == IEEE80211_STA_AUTH && 4234 new_state == IEEE80211_STA_NONE) { 4235 ret = 0; 4236 } else if (old_state == IEEE80211_STA_NONE && 4237 new_state == IEEE80211_STA_NOTEXIST) { 4238 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4239 iwl_mvm_stop_session_protection(mvm, vif); 4240 mvmvif->ap_sta = NULL; 4241 } 4242 ret = callbacks->rm_sta(mvm, vif, sta); 4243 if (sta->tdls) { 4244 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4245 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4246 NL80211_TDLS_DISABLE_LINK); 4247 } 4248 4249 if (unlikely(ret && 4250 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4251 &mvm->status))) 4252 ret = 0; 4253 } else { 4254 ret = -EIO; 4255 } 4256 out_unlock: 4257 mutex_unlock(&mvm->mutex); 4258 4259 if (sta->tdls && ret == 0) { 4260 if (old_state == IEEE80211_STA_NOTEXIST && 4261 new_state == IEEE80211_STA_NONE) 4262 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4263 else if (old_state == IEEE80211_STA_NONE && 4264 new_state == IEEE80211_STA_NOTEXIST) 4265 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4266 } 4267 4268 return ret; 4269 } 4270 4271 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, int radio_idx, 4272 u32 value) 4273 { 4274 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4275 4276 mvm->rts_threshold = value; 4277 4278 return 0; 4279 } 4280 4281 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4282 struct ieee80211_link_sta *link_sta, u32 changed) 4283 { 4284 struct ieee80211_sta *sta = link_sta->sta; 4285 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4286 4287 if (changed & (IEEE80211_RC_BW_CHANGED | 4288 IEEE80211_RC_SUPP_RATES_CHANGED | 4289 IEEE80211_RC_NSS_CHANGED)) 4290 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4291 4292 if (vif->type == NL80211_IFTYPE_STATION && 4293 changed & IEEE80211_RC_NSS_CHANGED) 4294 iwl_mvm_sf_update(mvm, vif, false); 4295 } 4296 4297 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4298 struct ieee80211_vif *vif, 4299 unsigned int link_id, u16 ac, 4300 const struct ieee80211_tx_queue_params *params) 4301 { 4302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4303 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4304 4305 mvmvif->deflink.queue_params[ac] = *params; 4306 4307 /* 4308 * No need to update right away, we'll get BSS_CHANGED_QOS 4309 * The exception is P2P_DEVICE interface which needs immediate update. 4310 */ 4311 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4312 guard(mvm)(mvm); 4313 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4314 } 4315 return 0; 4316 } 4317 4318 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4319 struct ieee80211_vif *vif, 4320 struct ieee80211_prep_tx_info *info) 4321 { 4322 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4323 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4324 4325 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4326 return; 4327 4328 guard(mvm)(mvm); 4329 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4330 } 4331 4332 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4333 struct ieee80211_vif *vif, 4334 struct ieee80211_prep_tx_info *info) 4335 { 4336 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4337 4338 /* for successful cases (auth/assoc), don't cancel session protection */ 4339 if (info->success) 4340 return; 4341 4342 guard(mvm)(mvm); 4343 iwl_mvm_stop_session_protection(mvm, vif); 4344 } 4345 4346 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4347 struct ieee80211_vif *vif, 4348 struct cfg80211_sched_scan_request *req, 4349 struct ieee80211_scan_ies *ies) 4350 { 4351 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4352 4353 guard(mvm)(mvm); 4354 4355 if (!vif->cfg.idle) 4356 return -EBUSY; 4357 4358 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4359 } 4360 4361 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4362 struct ieee80211_vif *vif) 4363 { 4364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4365 int ret; 4366 4367 mutex_lock(&mvm->mutex); 4368 4369 /* Due to a race condition, it's possible that mac80211 asks 4370 * us to stop a sched_scan when it's already stopped. This 4371 * can happen, for instance, if we stopped the scan ourselves, 4372 * called ieee80211_sched_scan_stopped() and the userspace called 4373 * stop sched scan before ieee80211_sched_scan_stopped_work() 4374 * could run. To handle this, simply return if the scan is 4375 * not running. 4376 */ 4377 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4378 mutex_unlock(&mvm->mutex); 4379 return 0; 4380 } 4381 4382 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4383 mutex_unlock(&mvm->mutex); 4384 iwl_mvm_wait_for_async_handlers(mvm); 4385 4386 return ret; 4387 } 4388 4389 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4390 enum set_key_cmd cmd, 4391 struct ieee80211_vif *vif, 4392 struct ieee80211_sta *sta, 4393 struct ieee80211_key_conf *key) 4394 { 4395 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4396 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4397 struct iwl_mvm_sta *mvmsta = NULL; 4398 struct iwl_mvm_key_pn *ptk_pn = NULL; 4399 int keyidx = key->keyidx; 4400 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4401 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4402 int ret, i; 4403 u8 key_offset; 4404 4405 if (sta) 4406 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4407 4408 switch (key->cipher) { 4409 case WLAN_CIPHER_SUITE_TKIP: 4410 if (!mvm->trans->mac_cfg->gen2) { 4411 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4412 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4413 } else if (vif->type == NL80211_IFTYPE_STATION) { 4414 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4415 } else { 4416 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4417 return -EOPNOTSUPP; 4418 } 4419 break; 4420 case WLAN_CIPHER_SUITE_CCMP: 4421 case WLAN_CIPHER_SUITE_GCMP: 4422 case WLAN_CIPHER_SUITE_GCMP_256: 4423 if (!iwl_mvm_has_new_tx_api(mvm)) 4424 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4425 break; 4426 case WLAN_CIPHER_SUITE_AES_CMAC: 4427 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4428 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4429 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4430 break; 4431 case WLAN_CIPHER_SUITE_WEP40: 4432 case WLAN_CIPHER_SUITE_WEP104: 4433 if (vif->type == NL80211_IFTYPE_STATION) 4434 break; 4435 if (iwl_mvm_has_new_tx_api(mvm)) 4436 return -EOPNOTSUPP; 4437 /* support HW crypto on TX */ 4438 return 0; 4439 default: 4440 return -EOPNOTSUPP; 4441 } 4442 4443 switch (cmd) { 4444 case SET_KEY: 4445 if (vif->type == NL80211_IFTYPE_STATION && 4446 (keyidx == 6 || keyidx == 7)) 4447 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4448 key); 4449 4450 if ((vif->type == NL80211_IFTYPE_ADHOC || 4451 vif->type == NL80211_IFTYPE_AP) && !sta) { 4452 /* 4453 * GTK on AP interface is a TX-only key, return 0; 4454 * on IBSS they're per-station and because we're lazy 4455 * we don't support them for RX, so do the same. 4456 * CMAC/GMAC in AP/IBSS modes must be done in software 4457 * on older NICs. 4458 * 4459 * Except, of course, beacon protection - it must be 4460 * offloaded since we just set a beacon template, and 4461 * then we must also offload the IGTK (not just BIGTK) 4462 * for firmware reasons. 4463 * 4464 * So just check for beacon protection - if we don't 4465 * have it we cannot get here with keyidx >= 6, and 4466 * if we do have it we need to send the key to FW in 4467 * all cases (CMAC/GMAC). 4468 */ 4469 if (!wiphy_ext_feature_isset(hw->wiphy, 4470 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4471 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4472 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4473 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4474 ret = -EOPNOTSUPP; 4475 break; 4476 } 4477 4478 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4479 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4480 !iwl_mvm_has_new_tx_api(mvm)) { 4481 key->hw_key_idx = STA_KEY_IDX_INVALID; 4482 ret = 0; 4483 break; 4484 } 4485 4486 if (!mvmvif->ap_ibss_active) { 4487 for (i = 0; 4488 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4489 i++) { 4490 if (!mvmvif->ap_early_keys[i]) { 4491 mvmvif->ap_early_keys[i] = key; 4492 break; 4493 } 4494 } 4495 4496 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4497 ret = -ENOSPC; 4498 else 4499 ret = 0; 4500 4501 break; 4502 } 4503 } 4504 4505 /* During FW restart, in order to restore the state as it was, 4506 * don't try to reprogram keys we previously failed for. 4507 */ 4508 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4509 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4510 IWL_DEBUG_MAC80211(mvm, 4511 "skip invalid idx key programming during restart\n"); 4512 ret = 0; 4513 break; 4514 } 4515 4516 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4517 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4518 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4519 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4520 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4521 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4522 struct ieee80211_key_seq seq; 4523 int tid, q; 4524 4525 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4526 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4527 mvm->trans->info.num_rxqs), 4528 GFP_KERNEL); 4529 if (!ptk_pn) { 4530 ret = -ENOMEM; 4531 break; 4532 } 4533 4534 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4535 ieee80211_get_key_rx_seq(key, tid, &seq); 4536 for (q = 0; q < mvm->trans->info.num_rxqs; q++) 4537 memcpy(ptk_pn->q[q].pn[tid], 4538 seq.ccmp.pn, 4539 IEEE80211_CCMP_PN_LEN); 4540 } 4541 4542 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4543 } 4544 4545 /* in HW restart reuse the index, otherwise request a new one */ 4546 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4547 key_offset = key->hw_key_idx; 4548 else 4549 key_offset = STA_KEY_IDX_INVALID; 4550 4551 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4552 mvmsta->pairwise_cipher = key->cipher; 4553 4554 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4555 sta ? sta->addr : NULL, key->keyidx); 4556 4557 if (sec_key_ver) 4558 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4559 else 4560 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4561 4562 if (ret) { 4563 IWL_WARN(mvm, "set key failed\n"); 4564 key->hw_key_idx = STA_KEY_IDX_INVALID; 4565 if (ptk_pn) { 4566 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4567 kfree(ptk_pn); 4568 } 4569 /* 4570 * can't add key for RX, but we don't need it 4571 * in the device for TX so still return 0, 4572 * unless we have new TX API where we cannot 4573 * put key material into the TX_CMD 4574 */ 4575 if (iwl_mvm_has_new_tx_api(mvm)) 4576 ret = -EOPNOTSUPP; 4577 else 4578 ret = 0; 4579 } 4580 4581 break; 4582 case DISABLE_KEY: 4583 if (vif->type == NL80211_IFTYPE_STATION && 4584 (keyidx == 6 || keyidx == 7)) 4585 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4586 NULL); 4587 4588 ret = -ENOENT; 4589 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4590 if (mvmvif->ap_early_keys[i] == key) { 4591 mvmvif->ap_early_keys[i] = NULL; 4592 ret = 0; 4593 } 4594 } 4595 4596 /* found in pending list - don't do anything else */ 4597 if (ret == 0) 4598 break; 4599 4600 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4601 ret = 0; 4602 break; 4603 } 4604 4605 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4606 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4607 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4608 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4609 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4610 ptk_pn = rcu_dereference_protected( 4611 mvmsta->ptk_pn[keyidx], 4612 lockdep_is_held(&mvm->mutex)); 4613 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4614 if (ptk_pn) 4615 kfree_rcu(ptk_pn, rcu_head); 4616 } 4617 4618 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4619 if (sec_key_ver) 4620 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4621 else 4622 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4623 break; 4624 default: 4625 ret = -EINVAL; 4626 } 4627 4628 return ret; 4629 } 4630 4631 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4632 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4633 struct ieee80211_key_conf *key) 4634 { 4635 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4636 4637 /* When resuming from wowlan, FW already knows about the newest keys */ 4638 if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) 4639 return 0; 4640 4641 guard(mvm)(mvm); 4642 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4643 } 4644 4645 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4646 struct ieee80211_vif *vif, 4647 struct ieee80211_key_conf *keyconf, 4648 struct ieee80211_sta *sta, 4649 u32 iv32, u16 *phase1key) 4650 { 4651 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4652 4653 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4654 return; 4655 4656 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4657 } 4658 4659 4660 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4661 struct iwl_rx_packet *pkt, void *data) 4662 { 4663 struct iwl_mvm *mvm = 4664 container_of(notif_wait, struct iwl_mvm, notif_wait); 4665 struct iwl_hs20_roc_res *resp; 4666 int resp_len = iwl_rx_packet_payload_len(pkt); 4667 struct iwl_mvm_time_event_data *te_data = data; 4668 4669 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4670 return true; 4671 4672 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4673 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4674 return true; 4675 } 4676 4677 resp = (void *)pkt->data; 4678 4679 IWL_DEBUG_TE(mvm, 4680 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4681 resp->status, resp->event_unique_id); 4682 4683 te_data->uid = le32_to_cpu(resp->event_unique_id); 4684 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4685 te_data->uid); 4686 4687 spin_lock_bh(&mvm->time_event_lock); 4688 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4689 spin_unlock_bh(&mvm->time_event_lock); 4690 4691 return true; 4692 } 4693 4694 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4695 struct ieee80211_channel *channel, 4696 struct ieee80211_vif *vif, 4697 int duration) 4698 { 4699 int res; 4700 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4701 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4702 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4703 struct iwl_notification_wait wait_time_event; 4704 u32 req_dur, delay; 4705 struct iwl_hs20_roc_req aux_roc_req = { 4706 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4707 .id_and_color = 4708 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4709 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4710 }; 4711 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4712 &aux_roc_req.channel_info); 4713 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4714 4715 /* Set the channel info data */ 4716 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4717 iwl_mvm_phy_band_from_nl80211(channel->band), 4718 IWL_PHY_CHANNEL_MODE20, 4719 0); 4720 4721 /* Set the time and duration */ 4722 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4723 4724 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4725 tail->duration = cpu_to_le32(req_dur); 4726 tail->apply_time_max_delay = cpu_to_le32(delay); 4727 4728 IWL_DEBUG_TE(mvm, 4729 "ROC: Requesting to remain on channel %u for %ums\n", 4730 channel->hw_value, req_dur); 4731 IWL_DEBUG_TE(mvm, 4732 "\t(requested = %ums, max_delay = %ums)\n", 4733 duration, delay); 4734 4735 /* Set the node address */ 4736 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4737 4738 lockdep_assert_held(&mvm->mutex); 4739 4740 spin_lock_bh(&mvm->time_event_lock); 4741 4742 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4743 spin_unlock_bh(&mvm->time_event_lock); 4744 return -EIO; 4745 } 4746 4747 te_data->vif = vif; 4748 te_data->duration = duration; 4749 te_data->id = HOT_SPOT_CMD; 4750 4751 spin_unlock_bh(&mvm->time_event_lock); 4752 4753 /* 4754 * Use a notification wait, which really just processes the 4755 * command response and doesn't wait for anything, in order 4756 * to be able to process the response and get the UID inside 4757 * the RX path. Using CMD_WANT_SKB doesn't work because it 4758 * stores the buffer and then wakes up this thread, by which 4759 * time another notification (that the time event started) 4760 * might already be processed unsuccessfully. 4761 */ 4762 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4763 time_event_response, 4764 ARRAY_SIZE(time_event_response), 4765 iwl_mvm_rx_aux_roc, te_data); 4766 4767 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4768 &aux_roc_req); 4769 4770 if (res) { 4771 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4772 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4773 goto out_clear_te; 4774 } 4775 4776 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4777 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4778 /* should never fail */ 4779 WARN_ON_ONCE(res); 4780 4781 if (res) { 4782 out_clear_te: 4783 spin_lock_bh(&mvm->time_event_lock); 4784 iwl_mvm_te_clear_data(mvm, te_data); 4785 spin_unlock_bh(&mvm->time_event_lock); 4786 } 4787 4788 return res; 4789 } 4790 4791 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4792 { 4793 int ret = 0; 4794 4795 lockdep_assert_held(&mvm->mutex); 4796 4797 if (!fw_has_capa(&mvm->fw->ucode_capa, 4798 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4799 IWL_ERR(mvm, "hotspot not supported\n"); 4800 return -EINVAL; 4801 } 4802 4803 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4804 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4805 WARN(ret, "Failed to allocate aux station"); 4806 } 4807 4808 return ret; 4809 } 4810 4811 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4812 { 4813 int ret; 4814 4815 lockdep_assert_held(&mvm->mutex); 4816 4817 ret = iwl_mvm_binding_add_vif(mvm, vif); 4818 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4819 return ret; 4820 4821 /* The station and queue allocation must be done only after the binding 4822 * is done, as otherwise the FW might incorrectly configure its state. 4823 */ 4824 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4825 } 4826 4827 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4828 struct ieee80211_vif *vif, 4829 struct ieee80211_channel *channel, 4830 int duration, 4831 enum ieee80211_roc_type type) 4832 { 4833 static const struct iwl_mvm_roc_ops ops = { 4834 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4835 .link = iwl_mvm_roc_link, 4836 }; 4837 4838 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4839 } 4840 4841 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4842 struct ieee80211_channel *channel, 4843 struct ieee80211_vif *vif, 4844 int duration) 4845 { 4846 int ret; 4847 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4848 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4849 IWL_FW_CMD_VER_UNKNOWN); 4850 4851 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4852 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4853 } else if (fw_ver >= 3) { 4854 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4855 ROC_ACTIVITY_HOTSPOT); 4856 } else { 4857 ret = -EOPNOTSUPP; 4858 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4859 } 4860 4861 return ret; 4862 } 4863 4864 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4865 struct ieee80211_channel *channel, 4866 struct ieee80211_vif *vif, 4867 int duration, 4868 enum ieee80211_roc_type type) 4869 { 4870 enum iwl_roc_activity activity; 4871 int ret; 4872 4873 lockdep_assert_held(&mvm->mutex); 4874 4875 switch (type) { 4876 case IEEE80211_ROC_TYPE_NORMAL: 4877 activity = ROC_ACTIVITY_P2P_DISC; 4878 break; 4879 case IEEE80211_ROC_TYPE_MGMT_TX: 4880 activity = ROC_ACTIVITY_P2P_NEG; 4881 break; 4882 default: 4883 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4884 return -EINVAL; 4885 } 4886 4887 ret = iwl_mvm_mld_add_aux_sta(mvm, 4888 iwl_mvm_get_lmac_id(mvm, channel->band)); 4889 if (ret) 4890 return ret; 4891 4892 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4893 } 4894 4895 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4896 struct ieee80211_vif *vif, 4897 struct ieee80211_channel *channel) 4898 { 4899 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4900 struct cfg80211_chan_def chandef; 4901 int i; 4902 4903 lockdep_assert_held(&mvm->mutex); 4904 4905 if (mvmvif->deflink.phy_ctxt && 4906 channel == mvmvif->deflink.phy_ctxt->channel) 4907 return 0; 4908 4909 /* Try using a PHY context that is already in use */ 4910 for (i = 0; i < NUM_PHY_CTX; i++) { 4911 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4912 4913 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4914 continue; 4915 4916 if (channel == phy_ctxt->channel) { 4917 if (mvmvif->deflink.phy_ctxt) 4918 iwl_mvm_phy_ctxt_unref(mvm, 4919 mvmvif->deflink.phy_ctxt); 4920 4921 mvmvif->deflink.phy_ctxt = phy_ctxt; 4922 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4923 return 0; 4924 } 4925 } 4926 4927 /* We already have a phy_ctxt, but it's not on the right channel */ 4928 if (mvmvif->deflink.phy_ctxt) 4929 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4930 4931 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4932 if (!mvmvif->deflink.phy_ctxt) 4933 return -ENOSPC; 4934 4935 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4936 4937 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4938 &chandef, NULL, 1, 1); 4939 } 4940 4941 /* Execute the common part for MLD and non-MLD modes */ 4942 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4943 struct ieee80211_channel *channel, int duration, 4944 enum ieee80211_roc_type type, 4945 const struct iwl_mvm_roc_ops *ops) 4946 { 4947 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4948 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); 4949 u32 lmac_id; 4950 int ret; 4951 4952 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4953 duration, type); 4954 4955 /* 4956 * Flush the done work, just in case it's still pending, so that 4957 * the work it does can complete and we can accept new frames. 4958 */ 4959 flush_work(&mvm->roc_done_wk); 4960 4961 if (!IS_ERR_OR_NULL(bss_vif)) { 4962 ret = iwl_mvm_block_esr_sync(mvm, bss_vif, 4963 IWL_MVM_ESR_BLOCKED_ROC); 4964 if (ret) 4965 return ret; 4966 } 4967 4968 guard(mvm)(mvm); 4969 4970 switch (vif->type) { 4971 case NL80211_IFTYPE_STATION: 4972 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4973 4974 /* Use aux roc framework (HS20) */ 4975 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4976 if (!ret) 4977 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4978 return ret; 4979 case NL80211_IFTYPE_P2P_DEVICE: 4980 /* handle below */ 4981 break; 4982 default: 4983 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4984 return -EINVAL; 4985 } 4986 4987 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4988 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4989 return ret; 4990 } 4991 4992 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4993 if (ret) 4994 return ret; 4995 4996 ret = ops->link(mvm, vif); 4997 if (ret) 4998 return ret; 4999 5000 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 5001 } 5002 5003 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 5004 struct ieee80211_vif *vif) 5005 { 5006 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5007 5008 IWL_DEBUG_MAC80211(mvm, "enter\n"); 5009 5010 iwl_mvm_stop_roc(mvm, vif); 5011 5012 IWL_DEBUG_MAC80211(mvm, "leave\n"); 5013 return 0; 5014 } 5015 5016 struct iwl_mvm_chanctx_usage_data { 5017 struct iwl_mvm *mvm; 5018 struct ieee80211_chanctx_conf *ctx; 5019 bool use_def; 5020 }; 5021 5022 static void iwl_mvm_chanctx_usage_iter(void *_data, u8 *mac, 5023 struct ieee80211_vif *vif) 5024 { 5025 struct iwl_mvm_chanctx_usage_data *data = _data; 5026 struct ieee80211_bss_conf *link_conf; 5027 int link_id; 5028 5029 for_each_vif_active_link(vif, link_conf, link_id) { 5030 if (rcu_access_pointer(link_conf->chanctx_conf) != data->ctx) 5031 continue; 5032 5033 if (iwl_mvm_enable_fils(data->mvm, vif, data->ctx)) 5034 data->use_def = true; 5035 5036 if (vif->type == NL80211_IFTYPE_AP && link_conf->ftmr_params) 5037 data->use_def = true; 5038 } 5039 } 5040 5041 struct cfg80211_chan_def * 5042 iwl_mvm_chanctx_def(struct iwl_mvm *mvm, struct ieee80211_chanctx_conf *ctx) 5043 { 5044 struct iwl_mvm_chanctx_usage_data data = { 5045 .mvm = mvm, 5046 .ctx = ctx, 5047 .use_def = false, 5048 }; 5049 5050 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 5051 IEEE80211_IFACE_ITER_NORMAL, 5052 iwl_mvm_chanctx_usage_iter, 5053 &data); 5054 5055 return data.use_def ? &ctx->def : &ctx->min_def; 5056 } 5057 5058 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 5059 struct ieee80211_chanctx_conf *ctx) 5060 { 5061 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5062 struct iwl_mvm_phy_ctxt *phy_ctxt; 5063 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5064 int ret; 5065 5066 lockdep_assert_held(&mvm->mutex); 5067 5068 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 5069 5070 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 5071 if (!phy_ctxt) { 5072 ret = -ENOSPC; 5073 goto out; 5074 } 5075 5076 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 5077 ctx->rx_chains_static, 5078 ctx->rx_chains_dynamic); 5079 if (ret) { 5080 IWL_ERR(mvm, "Failed to add PHY context\n"); 5081 goto out; 5082 } 5083 5084 *phy_ctxt_id = phy_ctxt->id; 5085 out: 5086 return ret; 5087 } 5088 5089 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 5090 struct ieee80211_chanctx_conf *ctx) 5091 { 5092 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5093 5094 guard(mvm)(mvm); 5095 return __iwl_mvm_add_chanctx(mvm, ctx); 5096 } 5097 5098 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 5099 struct ieee80211_chanctx_conf *ctx) 5100 { 5101 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5102 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5103 5104 lockdep_assert_held(&mvm->mutex); 5105 5106 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 5107 } 5108 5109 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 5110 struct ieee80211_chanctx_conf *ctx) 5111 { 5112 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5113 5114 guard(mvm)(mvm); 5115 __iwl_mvm_remove_chanctx(mvm, ctx); 5116 } 5117 5118 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 5119 struct ieee80211_chanctx_conf *ctx, u32 changed) 5120 { 5121 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5122 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5123 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5124 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5125 5126 if (WARN_ONCE((phy_ctxt->ref > 1) && 5127 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 5128 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 5129 IEEE80211_CHANCTX_CHANGE_RADAR | 5130 IEEE80211_CHANCTX_CHANGE_MIN_DEF)), 5131 "Cannot change PHY. Ref=%d, changed=0x%X\n", 5132 phy_ctxt->ref, changed)) 5133 return; 5134 5135 guard(mvm)(mvm); 5136 5137 /* we are only changing the min_width, may be a noop */ 5138 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) { 5139 if (phy_ctxt->width == def->width) 5140 return; 5141 5142 /* we are just toggling between 20_NOHT and 20 */ 5143 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5144 def->width <= NL80211_CHAN_WIDTH_20) 5145 return; 5146 } 5147 5148 iwl_mvm_bt_coex_vif_change(mvm); 5149 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5150 ctx->rx_chains_static, 5151 ctx->rx_chains_dynamic); 5152 } 5153 5154 /* 5155 * This function executes the common part for MLD and non-MLD modes. 5156 * 5157 * Returns true if we're done assigning the chanctx 5158 * (either on failure or success) 5159 */ 5160 static bool 5161 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5162 struct ieee80211_vif *vif, 5163 struct ieee80211_chanctx_conf *ctx, 5164 bool switching_chanctx, int *ret) 5165 { 5166 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5167 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5168 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5169 5170 lockdep_assert_held(&mvm->mutex); 5171 5172 mvmvif->deflink.phy_ctxt = phy_ctxt; 5173 5174 switch (vif->type) { 5175 case NL80211_IFTYPE_AP: 5176 /* only needed if we're switching chanctx (i.e. during CSA) */ 5177 if (switching_chanctx) { 5178 mvmvif->ap_ibss_active = true; 5179 break; 5180 } 5181 fallthrough; 5182 case NL80211_IFTYPE_ADHOC: 5183 /* 5184 * The AP binding flow is handled as part of the start_ap flow 5185 * (in bss_info_changed), similarly for IBSS. 5186 */ 5187 *ret = 0; 5188 return true; 5189 case NL80211_IFTYPE_STATION: 5190 break; 5191 case NL80211_IFTYPE_MONITOR: 5192 /* always disable PS when a monitor interface is active */ 5193 mvmvif->ps_disabled = true; 5194 break; 5195 default: 5196 *ret = -EINVAL; 5197 return true; 5198 } 5199 return false; 5200 } 5201 5202 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5203 struct ieee80211_vif *vif, 5204 struct ieee80211_bss_conf *link_conf, 5205 struct ieee80211_chanctx_conf *ctx, 5206 bool switching_chanctx) 5207 { 5208 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5209 int ret; 5210 5211 if (WARN_ON(!link_conf)) 5212 return -EINVAL; 5213 5214 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5215 switching_chanctx, &ret)) 5216 goto out; 5217 5218 ret = iwl_mvm_binding_add_vif(mvm, vif); 5219 if (ret) 5220 goto out; 5221 5222 /* 5223 * Power state must be updated before quotas, 5224 * otherwise fw will complain. 5225 */ 5226 iwl_mvm_power_update_mac(mvm); 5227 5228 /* Setting the quota at this stage is only required for monitor 5229 * interfaces. For the other types, the bss_info changed flow 5230 * will handle quota settings. 5231 */ 5232 if (vif->type == NL80211_IFTYPE_MONITOR) { 5233 mvmvif->monitor_active = true; 5234 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5235 if (ret) 5236 goto out_remove_binding; 5237 5238 ret = iwl_mvm_add_snif_sta(mvm, vif); 5239 if (ret) 5240 goto out_remove_binding; 5241 5242 } 5243 5244 /* Handle binding during CSA */ 5245 if (vif->type == NL80211_IFTYPE_AP) { 5246 iwl_mvm_update_quotas(mvm, false, NULL); 5247 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5248 } 5249 5250 if (vif->type == NL80211_IFTYPE_STATION) { 5251 if (!switching_chanctx) { 5252 mvmvif->csa_bcn_pending = false; 5253 goto out; 5254 } 5255 5256 mvmvif->csa_bcn_pending = true; 5257 5258 if (!fw_has_capa(&mvm->fw->ucode_capa, 5259 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5260 u32 duration = 5 * vif->bss_conf.beacon_int; 5261 5262 /* Protect the session to make sure we hear the first 5263 * beacon on the new channel. 5264 */ 5265 iwl_mvm_protect_session(mvm, vif, duration, duration, 5266 vif->bss_conf.beacon_int / 2, 5267 true); 5268 } 5269 5270 iwl_mvm_update_quotas(mvm, false, NULL); 5271 5272 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5273 link_conf, 5274 false); 5275 } 5276 5277 goto out; 5278 5279 out_remove_binding: 5280 iwl_mvm_binding_remove_vif(mvm, vif); 5281 iwl_mvm_power_update_mac(mvm); 5282 out: 5283 if (ret) 5284 mvmvif->deflink.phy_ctxt = NULL; 5285 return ret; 5286 } 5287 5288 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5289 struct ieee80211_vif *vif, 5290 struct ieee80211_bss_conf *link_conf, 5291 struct ieee80211_chanctx_conf *ctx) 5292 { 5293 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5294 5295 guard(mvm)(mvm); 5296 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5297 } 5298 5299 /* 5300 * This function executes the common part for MLD and non-MLD modes. 5301 * 5302 * Returns if chanctx unassign chanctx is done 5303 * (either on failure or success) 5304 */ 5305 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5306 struct ieee80211_vif *vif, 5307 bool switching_chanctx) 5308 { 5309 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5310 5311 lockdep_assert_held(&mvm->mutex); 5312 iwl_mvm_remove_time_event(mvm, mvmvif, 5313 &mvmvif->time_event_data); 5314 5315 switch (vif->type) { 5316 case NL80211_IFTYPE_ADHOC: 5317 return true; 5318 case NL80211_IFTYPE_MONITOR: 5319 mvmvif->monitor_active = false; 5320 mvmvif->ps_disabled = false; 5321 break; 5322 case NL80211_IFTYPE_AP: 5323 /* This part is triggered only during CSA */ 5324 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5325 return true; 5326 5327 mvmvif->csa_countdown = false; 5328 5329 /* Set CS bit on all the stations */ 5330 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5331 5332 /* Save blocked iface, the timeout is set on the next beacon */ 5333 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5334 5335 mvmvif->ap_ibss_active = false; 5336 break; 5337 default: 5338 break; 5339 } 5340 return false; 5341 } 5342 5343 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5344 struct ieee80211_vif *vif, 5345 struct ieee80211_bss_conf *link_conf, 5346 struct ieee80211_chanctx_conf *ctx, 5347 bool switching_chanctx) 5348 { 5349 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5350 struct ieee80211_vif *disabled_vif = NULL; 5351 5352 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5353 goto out; 5354 5355 if (vif->type == NL80211_IFTYPE_MONITOR) 5356 iwl_mvm_rm_snif_sta(mvm, vif); 5357 5358 5359 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5360 disabled_vif = vif; 5361 if (!fw_has_capa(&mvm->fw->ucode_capa, 5362 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5363 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5364 } 5365 5366 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5367 iwl_mvm_binding_remove_vif(mvm, vif); 5368 5369 out: 5370 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5371 switching_chanctx) 5372 return; 5373 mvmvif->deflink.phy_ctxt = NULL; 5374 iwl_mvm_power_update_mac(mvm); 5375 } 5376 5377 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5378 struct ieee80211_vif *vif, 5379 struct ieee80211_bss_conf *link_conf, 5380 struct ieee80211_chanctx_conf *ctx) 5381 { 5382 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5383 5384 guard(mvm)(mvm); 5385 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5386 } 5387 5388 static int 5389 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5390 struct ieee80211_vif_chanctx_switch *vifs, 5391 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5392 { 5393 int ret; 5394 5395 guard(mvm)(mvm); 5396 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5397 vifs[0].old_ctx, true); 5398 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5399 5400 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5401 if (ret) { 5402 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5403 goto out_reassign; 5404 } 5405 5406 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5407 vifs[0].new_ctx, true); 5408 if (ret) { 5409 IWL_ERR(mvm, 5410 "failed to assign new_ctx during channel switch\n"); 5411 goto out_remove; 5412 } 5413 5414 /* we don't support TDLS during DCM - can be caused by channel switch */ 5415 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5416 iwl_mvm_teardown_tdls_peers(mvm); 5417 5418 return 0; 5419 5420 out_remove: 5421 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5422 5423 out_reassign: 5424 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5425 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5426 goto out_restart; 5427 } 5428 5429 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5430 vifs[0].old_ctx, true)) { 5431 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5432 goto out_restart; 5433 } 5434 5435 return ret; 5436 5437 out_restart: 5438 /* things keep failing, better restart the hw */ 5439 iwl_force_nmi(mvm->trans); 5440 return ret; 5441 } 5442 5443 static int 5444 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5445 struct ieee80211_vif_chanctx_switch *vifs, 5446 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5447 { 5448 int ret; 5449 5450 guard(mvm)(mvm); 5451 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5452 vifs[0].old_ctx, true); 5453 5454 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5455 vifs[0].new_ctx, true); 5456 if (ret) { 5457 IWL_ERR(mvm, 5458 "failed to assign new_ctx during channel switch\n"); 5459 goto out_reassign; 5460 } 5461 5462 return 0; 5463 5464 out_reassign: 5465 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5466 vifs[0].old_ctx, true)) { 5467 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5468 goto out_restart; 5469 } 5470 5471 return ret; 5472 5473 out_restart: 5474 /* things keep failing, better restart the hw */ 5475 iwl_force_nmi(mvm->trans); 5476 return ret; 5477 } 5478 5479 /* Execute the common part for both MLD and non-MLD modes */ 5480 int 5481 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5482 struct ieee80211_vif_chanctx_switch *vifs, 5483 int n_vifs, 5484 enum ieee80211_chanctx_switch_mode mode, 5485 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5486 { 5487 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5488 int ret; 5489 5490 /* we only support a single-vif right now */ 5491 if (n_vifs > 1) 5492 return -EOPNOTSUPP; 5493 5494 switch (mode) { 5495 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5496 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5497 break; 5498 case CHANCTX_SWMODE_REASSIGN_VIF: 5499 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5500 break; 5501 default: 5502 ret = -EOPNOTSUPP; 5503 break; 5504 } 5505 5506 return ret; 5507 } 5508 5509 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5510 struct ieee80211_vif_chanctx_switch *vifs, 5511 int n_vifs, 5512 enum ieee80211_chanctx_switch_mode mode) 5513 { 5514 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5515 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5516 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5517 }; 5518 5519 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5520 } 5521 5522 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5523 { 5524 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5525 5526 return mvm->ibss_manager; 5527 } 5528 5529 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5530 bool set) 5531 { 5532 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5533 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5534 5535 if (!mvm_sta || !mvm_sta->vif) { 5536 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5537 return -EINVAL; 5538 } 5539 5540 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5541 &mvm_sta->vif->bss_conf); 5542 } 5543 5544 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5545 struct ieee80211_channel_switch *chsw) 5546 { 5547 /* By implementing this operation, we prevent mac80211 from 5548 * starting its own channel switch timer, so that we can call 5549 * ieee80211_chswitch_done() ourselves at the right time 5550 * (which is when the absence time event starts). 5551 */ 5552 5553 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5554 "dummy channel switch op\n"); 5555 } 5556 5557 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5558 struct ieee80211_vif *vif, 5559 struct ieee80211_channel_switch *chsw) 5560 { 5561 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5562 struct iwl_chan_switch_te_cmd cmd = { 5563 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5564 mvmvif->color)), 5565 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5566 .tsf = cpu_to_le32(chsw->timestamp), 5567 .cs_count = chsw->count, 5568 .cs_mode = chsw->block_tx, 5569 }; 5570 5571 lockdep_assert_held(&mvm->mutex); 5572 5573 if (chsw->delay) 5574 cmd.cs_delayed_bcn_count = 5575 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5576 5577 return iwl_mvm_send_cmd_pdu(mvm, 5578 WIDE_ID(MAC_CONF_GROUP, 5579 CHANNEL_SWITCH_TIME_EVENT_CMD), 5580 0, sizeof(cmd), &cmd); 5581 } 5582 5583 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5584 struct ieee80211_vif *vif, 5585 struct ieee80211_channel_switch *chsw) 5586 { 5587 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5588 u32 apply_time; 5589 5590 /* Schedule the time event to a bit before beacon 1, 5591 * to make sure we're in the new channel when the 5592 * GO/AP arrives. In case count <= 1 immediately schedule the 5593 * TE (this might result with some packet loss or connection 5594 * loss). 5595 */ 5596 if (chsw->count <= 1) 5597 apply_time = 0; 5598 else 5599 apply_time = chsw->device_timestamp + 5600 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5601 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5602 5603 if (chsw->block_tx) 5604 iwl_mvm_csa_client_absent(mvm, vif); 5605 5606 if (mvmvif->bf_enabled) { 5607 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5608 5609 if (ret) 5610 return ret; 5611 } 5612 5613 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5614 apply_time); 5615 5616 return 0; 5617 } 5618 5619 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5620 { 5621 int i; 5622 5623 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5624 struct iwl_mvm_txq *mvmtxq = 5625 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5626 5627 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5628 } 5629 } 5630 5631 #define IWL_MAX_CSA_BLOCK_TX 1500 5632 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5633 struct ieee80211_vif *vif, 5634 struct ieee80211_channel_switch *chsw) 5635 { 5636 struct ieee80211_vif *csa_vif; 5637 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5638 struct iwl_mvm_txq *mvmtxq; 5639 int ret; 5640 5641 lockdep_assert_held(&mvm->mutex); 5642 5643 mvmvif->csa_failed = false; 5644 mvmvif->csa_blocks_tx = false; 5645 5646 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5647 chsw->chandef.center_freq1); 5648 5649 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5650 ieee80211_vif_to_wdev(vif), 5651 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5652 5653 switch (vif->type) { 5654 case NL80211_IFTYPE_AP: 5655 csa_vif = 5656 rcu_dereference_protected(mvm->csa_vif, 5657 lockdep_is_held(&mvm->mutex)); 5658 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5659 "Another CSA is already in progress")) 5660 return -EBUSY; 5661 5662 /* we still didn't unblock tx. prevent new CS meanwhile */ 5663 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5664 lockdep_is_held(&mvm->mutex))) 5665 return -EBUSY; 5666 5667 rcu_assign_pointer(mvm->csa_vif, vif); 5668 5669 if (WARN_ONCE(mvmvif->csa_countdown, 5670 "Previous CSA countdown didn't complete")) 5671 return -EBUSY; 5672 5673 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5674 5675 if (!chsw->block_tx) 5676 break; 5677 /* don't need blocking in driver otherwise - mac80211 will do */ 5678 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5679 break; 5680 5681 mvmvif->csa_blocks_tx = true; 5682 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5683 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5684 ieee80211_iterate_stations_atomic(mvm->hw, 5685 iwl_mvm_csa_block_txqs, 5686 NULL); 5687 break; 5688 case NL80211_IFTYPE_STATION: 5689 mvmvif->csa_blocks_tx = chsw->block_tx; 5690 5691 /* 5692 * In the new flow FW is in charge of timing the switch so there 5693 * is no need for all of this 5694 */ 5695 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5696 CHANNEL_SWITCH_ERROR_NOTIF, 5697 0)) 5698 break; 5699 5700 /* 5701 * We haven't configured the firmware to be associated yet since 5702 * we don't know the dtim period. In this case, the firmware can't 5703 * track the beacons. 5704 */ 5705 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5706 return -EBUSY; 5707 5708 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5709 hweight16(vif->valid_links) <= 1) 5710 schedule_delayed_work(&mvmvif->csa_work, 0); 5711 5712 if (chsw->block_tx) { 5713 /* 5714 * In case of undetermined / long time with immediate 5715 * quiet monitor status to gracefully disconnect 5716 */ 5717 if (!chsw->count || 5718 chsw->count * vif->bss_conf.beacon_int > 5719 IWL_MAX_CSA_BLOCK_TX) 5720 schedule_delayed_work(&mvmvif->csa_work, 5721 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5722 } 5723 5724 if (!fw_has_capa(&mvm->fw->ucode_capa, 5725 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5726 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5727 if (ret) 5728 return ret; 5729 } else { 5730 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5731 } 5732 5733 mvmvif->csa_count = chsw->count; 5734 mvmvif->csa_misbehave = false; 5735 break; 5736 default: 5737 break; 5738 } 5739 5740 mvmvif->ps_disabled = true; 5741 5742 ret = iwl_mvm_power_update_ps(mvm); 5743 if (ret) 5744 return ret; 5745 5746 /* we won't be on this channel any longer */ 5747 iwl_mvm_teardown_tdls_peers(mvm); 5748 5749 return ret; 5750 } 5751 5752 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5753 struct ieee80211_vif *vif, 5754 struct ieee80211_channel_switch *chsw) 5755 { 5756 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5757 5758 guard(mvm)(mvm); 5759 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5760 } 5761 5762 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5763 struct ieee80211_vif *vif, 5764 struct ieee80211_channel_switch *chsw) 5765 { 5766 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5767 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5768 struct iwl_chan_switch_te_cmd cmd = { 5769 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5770 mvmvif->color)), 5771 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5772 .tsf = cpu_to_le32(chsw->timestamp), 5773 .cs_count = chsw->count, 5774 .cs_mode = chsw->block_tx, 5775 }; 5776 5777 /* 5778 * In the new flow FW is in charge of timing the switch so there is no 5779 * need for all of this 5780 */ 5781 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5782 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5783 return; 5784 5785 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5786 return; 5787 5788 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5789 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5790 5791 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5792 if (mvmvif->csa_misbehave) { 5793 struct ieee80211_bss_conf *link_conf; 5794 5795 /* Second time, give up on this AP*/ 5796 5797 link_conf = wiphy_dereference(hw->wiphy, 5798 vif->link_conf[chsw->link_id]); 5799 if (WARN_ON(!link_conf)) 5800 return; 5801 5802 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5803 ieee80211_chswitch_done(vif, false, 0); 5804 mvmvif->csa_misbehave = false; 5805 return; 5806 } 5807 mvmvif->csa_misbehave = true; 5808 } 5809 mvmvif->csa_count = chsw->count; 5810 5811 guard(mvm)(mvm); 5812 if (mvmvif->csa_failed) 5813 return; 5814 5815 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5816 WIDE_ID(MAC_CONF_GROUP, 5817 CHANNEL_SWITCH_TIME_EVENT_CMD), 5818 0, sizeof(cmd), &cmd)); 5819 } 5820 5821 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5822 { 5823 int i; 5824 5825 if (!iwl_mvm_has_new_tx_api(mvm)) { 5826 /* we can't ask the firmware anything if it is dead */ 5827 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5828 &mvm->status)) 5829 return; 5830 if (drop) { 5831 guard(mvm)(mvm); 5832 iwl_mvm_flush_tx_path(mvm, 5833 iwl_mvm_flushable_queues(mvm) & queues); 5834 } else { 5835 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5836 } 5837 return; 5838 } 5839 5840 guard(mvm)(mvm); 5841 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5842 struct ieee80211_sta *sta; 5843 5844 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5845 lockdep_is_held(&mvm->mutex)); 5846 if (IS_ERR_OR_NULL(sta)) 5847 continue; 5848 5849 if (drop) 5850 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5851 else 5852 iwl_mvm_wait_sta_queues_empty(mvm, 5853 iwl_mvm_sta_from_mac80211(sta)); 5854 } 5855 } 5856 5857 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5858 u32 queues, bool drop) 5859 { 5860 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5861 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5862 struct iwl_mvm_sta *mvmsta; 5863 struct ieee80211_sta *sta; 5864 bool ap_sta_done = false; 5865 int i; 5866 u32 msk = 0; 5867 5868 if (!vif) { 5869 iwl_mvm_flush_no_vif(mvm, queues, drop); 5870 return; 5871 } 5872 5873 if (!drop && hweight16(vif->active_links) <= 1) { 5874 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5875 struct ieee80211_bss_conf *link_conf; 5876 5877 link_conf = wiphy_dereference(hw->wiphy, 5878 vif->link_conf[link_id]); 5879 if (WARN_ON(!link_conf)) 5880 return; 5881 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5882 drop = true; 5883 } 5884 5885 /* Make sure we're done with the deferred traffic before flushing */ 5886 flush_work(&mvm->add_stream_wk); 5887 5888 mutex_lock(&mvm->mutex); 5889 5890 /* flush the AP-station and all TDLS peers */ 5891 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5892 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5893 lockdep_is_held(&mvm->mutex)); 5894 if (IS_ERR_OR_NULL(sta)) 5895 continue; 5896 5897 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5898 if (mvmsta->vif != vif) 5899 continue; 5900 5901 if (sta == mvmvif->ap_sta) { 5902 if (ap_sta_done) 5903 continue; 5904 ap_sta_done = true; 5905 } 5906 5907 if (drop) { 5908 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5909 mvmsta->tfd_queue_msk)) 5910 IWL_ERR(mvm, "flush request fail\n"); 5911 } else { 5912 if (iwl_mvm_has_new_tx_api(mvm)) 5913 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5914 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5915 msk |= mvmsta->tfd_queue_msk; 5916 } 5917 } 5918 5919 mutex_unlock(&mvm->mutex); 5920 5921 /* this can take a while, and we may need/want other operations 5922 * to succeed while doing this, so do it without the mutex held 5923 * If the firmware is dead, this can't work... 5924 */ 5925 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5926 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5927 &mvm->status)) 5928 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5929 } 5930 5931 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5932 struct ieee80211_sta *sta) 5933 { 5934 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5935 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5936 struct iwl_mvm_link_sta *mvm_link_sta; 5937 struct ieee80211_link_sta *link_sta; 5938 int link_id; 5939 5940 guard(mvm)(mvm); 5941 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5942 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5943 lockdep_is_held(&mvm->mutex)); 5944 if (!mvm_link_sta) 5945 continue; 5946 5947 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5948 mvmsta->tfd_queue_msk)) 5949 IWL_ERR(mvm, "flush request fail\n"); 5950 } 5951 } 5952 5953 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 5954 struct survey_info *survey) 5955 { 5956 int chan_idx; 5957 enum nl80211_band band; 5958 int ret; 5959 5960 mutex_lock(&mvm->mutex); 5961 5962 if (!mvm->acs_survey) { 5963 ret = -ENOENT; 5964 goto out; 5965 } 5966 5967 /* Find and return the next entry that has a non-zero active time */ 5968 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5969 struct ieee80211_supported_band *sband = 5970 mvm->hw->wiphy->bands[band]; 5971 5972 if (!sband) 5973 continue; 5974 5975 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 5976 struct iwl_mvm_acs_survey_channel *info = 5977 &mvm->acs_survey->bands[band][chan_idx]; 5978 5979 if (!info->time) 5980 continue; 5981 5982 /* Found (the next) channel to report */ 5983 survey->channel = &sband->channels[chan_idx]; 5984 survey->filled = SURVEY_INFO_TIME | 5985 SURVEY_INFO_TIME_BUSY | 5986 SURVEY_INFO_TIME_RX | 5987 SURVEY_INFO_TIME_TX; 5988 survey->time = info->time; 5989 survey->time_busy = info->time_busy; 5990 survey->time_rx = info->time_rx; 5991 survey->time_tx = info->time_tx; 5992 survey->noise = info->noise; 5993 if (survey->noise < 0) 5994 survey->filled |= SURVEY_INFO_NOISE_DBM; 5995 5996 /* Clear time so that channel is only reported once */ 5997 info->time = 0; 5998 5999 ret = 0; 6000 goto out; 6001 } 6002 } 6003 6004 ret = -ENOENT; 6005 6006 out: 6007 mutex_unlock(&mvm->mutex); 6008 6009 return ret; 6010 } 6011 6012 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 6013 struct survey_info *survey) 6014 { 6015 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6016 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 6017 WIDE_ID(SYSTEM_GROUP, 6018 SYSTEM_STATISTICS_CMD), 6019 IWL_FW_CMD_VER_UNKNOWN); 6020 6021 memset(survey, 0, sizeof(*survey)); 6022 6023 if (!fw_has_capa(&mvm->fw->ucode_capa, 6024 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 6025 return -ENOENT; 6026 6027 /* 6028 * Return the beacon stats at index zero and pass on following indices 6029 * to the function returning the full survey, most likely for ACS 6030 * (Automatic Channel Selection). 6031 */ 6032 if (idx > 0) 6033 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 6034 6035 guard(mvm)(mvm); 6036 6037 if (iwl_mvm_firmware_running(mvm)) { 6038 int ret = iwl_mvm_request_statistics(mvm, false); 6039 6040 if (ret) 6041 return ret; 6042 } 6043 6044 survey->filled = SURVEY_INFO_TIME_RX | 6045 SURVEY_INFO_TIME_TX; 6046 6047 survey->time_rx = mvm->accu_radio_stats.rx_time + 6048 mvm->radio_stats.rx_time; 6049 do_div(survey->time_rx, USEC_PER_MSEC); 6050 6051 survey->time_tx = mvm->accu_radio_stats.tx_time + 6052 mvm->radio_stats.tx_time; 6053 do_div(survey->time_tx, USEC_PER_MSEC); 6054 6055 /* the new fw api doesn't support the following fields */ 6056 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 6057 return 0; 6058 6059 survey->filled |= SURVEY_INFO_TIME | 6060 SURVEY_INFO_TIME_SCAN; 6061 survey->time = mvm->accu_radio_stats.on_time_rf + 6062 mvm->radio_stats.on_time_rf; 6063 do_div(survey->time, USEC_PER_MSEC); 6064 6065 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 6066 mvm->radio_stats.on_time_scan; 6067 do_div(survey->time_scan, USEC_PER_MSEC); 6068 6069 return 0; 6070 } 6071 6072 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 6073 { 6074 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 6075 u32 gi_ltf; 6076 6077 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 6078 case RATE_MCS_CHAN_WIDTH_20: 6079 rinfo->bw = RATE_INFO_BW_20; 6080 break; 6081 case RATE_MCS_CHAN_WIDTH_40: 6082 rinfo->bw = RATE_INFO_BW_40; 6083 break; 6084 case RATE_MCS_CHAN_WIDTH_80: 6085 rinfo->bw = RATE_INFO_BW_80; 6086 break; 6087 case RATE_MCS_CHAN_WIDTH_160: 6088 rinfo->bw = RATE_INFO_BW_160; 6089 break; 6090 case RATE_MCS_CHAN_WIDTH_320: 6091 rinfo->bw = RATE_INFO_BW_320; 6092 break; 6093 } 6094 6095 if (format == RATE_MCS_MOD_TYPE_CCK || 6096 format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) { 6097 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 6098 6099 /* add the offset needed to get to the legacy ofdm indices */ 6100 if (format == RATE_MCS_MOD_TYPE_LEGACY_OFDM) 6101 rate += IWL_FIRST_OFDM_RATE; 6102 6103 switch (rate) { 6104 case IWL_RATE_1M_INDEX: 6105 rinfo->legacy = 10; 6106 break; 6107 case IWL_RATE_2M_INDEX: 6108 rinfo->legacy = 20; 6109 break; 6110 case IWL_RATE_5M_INDEX: 6111 rinfo->legacy = 55; 6112 break; 6113 case IWL_RATE_11M_INDEX: 6114 rinfo->legacy = 110; 6115 break; 6116 case IWL_RATE_6M_INDEX: 6117 rinfo->legacy = 60; 6118 break; 6119 case IWL_RATE_9M_INDEX: 6120 rinfo->legacy = 90; 6121 break; 6122 case IWL_RATE_12M_INDEX: 6123 rinfo->legacy = 120; 6124 break; 6125 case IWL_RATE_18M_INDEX: 6126 rinfo->legacy = 180; 6127 break; 6128 case IWL_RATE_24M_INDEX: 6129 rinfo->legacy = 240; 6130 break; 6131 case IWL_RATE_36M_INDEX: 6132 rinfo->legacy = 360; 6133 break; 6134 case IWL_RATE_48M_INDEX: 6135 rinfo->legacy = 480; 6136 break; 6137 case IWL_RATE_54M_INDEX: 6138 rinfo->legacy = 540; 6139 } 6140 return; 6141 } 6142 6143 rinfo->nss = u32_get_bits(rate_n_flags, 6144 RATE_MCS_NSS_MSK) + 1; 6145 rinfo->mcs = format == RATE_MCS_MOD_TYPE_HT ? 6146 RATE_HT_MCS_INDEX(rate_n_flags) : 6147 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6148 6149 if (rate_n_flags & RATE_MCS_SGI_MSK) 6150 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6151 6152 switch (format) { 6153 case RATE_MCS_MOD_TYPE_EHT: 6154 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6155 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6156 break; 6157 case RATE_MCS_MOD_TYPE_HE: 6158 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6159 6160 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6161 6162 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6163 rinfo->bw = RATE_INFO_BW_HE_RU; 6164 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6165 } 6166 6167 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6168 case RATE_MCS_HE_TYPE_SU: 6169 case RATE_MCS_HE_TYPE_EXT_SU: 6170 if (gi_ltf == 0 || gi_ltf == 1) 6171 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6172 else if (gi_ltf == 2) 6173 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6174 else if (gi_ltf == 3) 6175 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6176 else 6177 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6178 break; 6179 case RATE_MCS_HE_TYPE_MU: 6180 if (gi_ltf == 0 || gi_ltf == 1) 6181 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6182 else if (gi_ltf == 2) 6183 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6184 else 6185 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6186 break; 6187 case RATE_MCS_HE_TYPE_TRIG: 6188 if (gi_ltf == 0 || gi_ltf == 1) 6189 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6190 else 6191 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6192 break; 6193 } 6194 6195 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6196 rinfo->he_dcm = 1; 6197 break; 6198 case RATE_MCS_MOD_TYPE_HT: 6199 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6200 break; 6201 case RATE_MCS_MOD_TYPE_VHT: 6202 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6203 break; 6204 } 6205 } 6206 6207 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6208 struct ieee80211_vif *vif, 6209 struct ieee80211_sta *sta, 6210 struct station_info *sinfo) 6211 { 6212 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6213 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6214 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6215 int i; 6216 6217 if (mvmsta->deflink.avg_energy) { 6218 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6219 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6220 } 6221 6222 if (iwl_mvm_has_tlc_offload(mvm)) { 6223 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6224 6225 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6226 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6227 } 6228 6229 /* if beacon filtering isn't on mac80211 does it anyway */ 6230 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6231 return; 6232 6233 if (!vif->cfg.assoc) 6234 return; 6235 6236 guard(mvm)(mvm); 6237 6238 if (sta != mvmvif->ap_sta) 6239 return; 6240 6241 if (iwl_mvm_request_statistics(mvm, false)) 6242 return; 6243 6244 sinfo->rx_beacon = 0; 6245 for_each_mvm_vif_valid_link(mvmvif, i) 6246 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6247 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6248 6249 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6250 if (mvmvif->deflink.beacon_stats.avg_signal) { 6251 /* firmware only reports a value after RXing a few beacons */ 6252 sinfo->rx_beacon_signal_avg = 6253 mvmvif->deflink.beacon_stats.avg_signal; 6254 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6255 } 6256 } 6257 6258 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6259 struct ieee80211_vif *vif, 6260 const struct ieee80211_mlme_event *mlme) 6261 { 6262 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6263 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6264 iwl_dbg_tlv_time_point(&mvm->fwrt, 6265 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6266 NULL); 6267 return; 6268 } 6269 6270 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6271 iwl_dbg_tlv_time_point(&mvm->fwrt, 6272 IWL_FW_INI_TIME_POINT_DEASSOC, 6273 NULL); 6274 return; 6275 } 6276 } 6277 6278 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6279 struct ieee80211_vif *vif, 6280 const struct ieee80211_event *event) 6281 { 6282 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6283 do { \ 6284 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6285 break; \ 6286 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6287 } while (0) 6288 6289 struct iwl_fw_dbg_trigger_tlv *trig; 6290 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6291 6292 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6293 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6294 return; 6295 } 6296 6297 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6298 FW_DBG_TRIGGER_MLME); 6299 if (!trig) 6300 return; 6301 6302 trig_mlme = (void *)trig->data; 6303 6304 if (event->u.mlme.data == ASSOC_EVENT) { 6305 if (event->u.mlme.status == MLME_DENIED) 6306 CHECK_MLME_TRIGGER(stop_assoc_denied, 6307 "DENIED ASSOC: reason %d", 6308 event->u.mlme.reason); 6309 else if (event->u.mlme.status == MLME_TIMEOUT) 6310 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6311 "ASSOC TIMEOUT"); 6312 } else if (event->u.mlme.data == AUTH_EVENT) { 6313 if (event->u.mlme.status == MLME_DENIED) 6314 CHECK_MLME_TRIGGER(stop_auth_denied, 6315 "DENIED AUTH: reason %d", 6316 event->u.mlme.reason); 6317 else if (event->u.mlme.status == MLME_TIMEOUT) 6318 CHECK_MLME_TRIGGER(stop_auth_timeout, 6319 "AUTH TIMEOUT"); 6320 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6321 CHECK_MLME_TRIGGER(stop_rx_deauth, 6322 "DEAUTH RX %d", event->u.mlme.reason); 6323 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6324 CHECK_MLME_TRIGGER(stop_tx_deauth, 6325 "DEAUTH TX %d", event->u.mlme.reason); 6326 } 6327 #undef CHECK_MLME_TRIGGER 6328 } 6329 6330 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6331 struct ieee80211_vif *vif, 6332 const struct ieee80211_event *event) 6333 { 6334 struct iwl_fw_dbg_trigger_tlv *trig; 6335 struct iwl_fw_dbg_trigger_ba *ba_trig; 6336 6337 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6338 FW_DBG_TRIGGER_BA); 6339 if (!trig) 6340 return; 6341 6342 ba_trig = (void *)trig->data; 6343 6344 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6345 return; 6346 6347 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6348 "BAR received from %pM, tid %d, ssn %d", 6349 event->u.ba.sta->addr, event->u.ba.tid, 6350 event->u.ba.ssn); 6351 } 6352 6353 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6354 struct ieee80211_vif *vif, 6355 const struct ieee80211_event *event) 6356 { 6357 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6358 6359 switch (event->type) { 6360 case MLME_EVENT: 6361 iwl_mvm_event_mlme_callback(mvm, vif, event); 6362 break; 6363 case BAR_RX_EVENT: 6364 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6365 break; 6366 case BA_FRAME_TIMEOUT: 6367 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6368 event->u.ba.tid); 6369 break; 6370 default: 6371 break; 6372 } 6373 } 6374 6375 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6376 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6377 enum iwl_mvm_rxq_notif_type type, 6378 bool sync, 6379 const void *data, u32 size) 6380 { 6381 DEFINE_RAW_FLEX(struct iwl_rxq_sync_cmd, cmd, payload, 6382 sizeof(struct iwl_mvm_internal_rxq_notif)); 6383 struct iwl_mvm_internal_rxq_notif *notif = 6384 (struct iwl_mvm_internal_rxq_notif *)cmd->payload; 6385 struct iwl_host_cmd hcmd = { 6386 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6387 .data[0] = cmd, 6388 .len[0] = __struct_size(cmd), 6389 .data[1] = data, 6390 .len[1] = size, 6391 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6392 }; 6393 int ret; 6394 6395 cmd->rxq_mask = cpu_to_le32(BIT(mvm->trans->info.num_rxqs) - 1); 6396 cmd->count = cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6397 size); 6398 notif->type = type; 6399 notif->sync = sync; 6400 6401 /* size must be a multiple of DWORD */ 6402 if (WARN_ON(cmd->count & cpu_to_le32(3))) 6403 return; 6404 6405 if (!iwl_mvm_has_new_rx_api(mvm)) 6406 return; 6407 6408 if (sync) { 6409 notif->cookie = mvm->queue_sync_cookie; 6410 mvm->queue_sync_state = (1 << mvm->trans->info.num_rxqs) - 1; 6411 } 6412 6413 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6414 if (ret) { 6415 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6416 goto out; 6417 } 6418 6419 if (sync) { 6420 lockdep_assert_held(&mvm->mutex); 6421 ret = wait_event_timeout(mvm->rx_sync_waitq, 6422 READ_ONCE(mvm->queue_sync_state) == 0, 6423 SYNC_RX_QUEUE_TIMEOUT); 6424 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6425 mvm->queue_sync_state, 6426 mvm->queue_sync_cookie); 6427 } 6428 6429 out: 6430 if (sync) { 6431 mvm->queue_sync_state = 0; 6432 mvm->queue_sync_cookie++; 6433 } 6434 } 6435 6436 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6437 { 6438 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6439 6440 guard(mvm)(mvm); 6441 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6442 } 6443 6444 int 6445 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6446 struct ieee80211_vif *vif, 6447 struct cfg80211_ftm_responder_stats *stats) 6448 { 6449 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6450 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6451 6452 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6453 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6454 return -EINVAL; 6455 6456 mutex_lock(&mvm->mutex); 6457 *stats = mvm->ftm_resp_stats; 6458 mutex_unlock(&mvm->mutex); 6459 6460 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6461 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6462 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6463 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6464 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6465 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6466 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6467 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6468 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6469 6470 return 0; 6471 } 6472 6473 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6474 struct cfg80211_pmsr_request *request) 6475 { 6476 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6477 6478 guard(mvm)(mvm); 6479 return iwl_mvm_ftm_start(mvm, vif, request); 6480 } 6481 6482 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6483 struct cfg80211_pmsr_request *request) 6484 { 6485 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6486 6487 guard(mvm)(mvm); 6488 iwl_mvm_ftm_abort(mvm, request); 6489 } 6490 6491 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6492 { 6493 u8 protocol = ip_hdr(skb)->protocol; 6494 6495 if (!IS_ENABLED(CONFIG_INET)) 6496 return false; 6497 6498 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6499 } 6500 6501 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6502 struct sk_buff *head, 6503 struct sk_buff *skb) 6504 { 6505 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6506 6507 /* For now don't aggregate IPv6 in AMSDU */ 6508 if (skb->protocol != htons(ETH_P_IP)) 6509 return false; 6510 6511 if (!iwl_mvm_is_csum_supported(mvm)) 6512 return true; 6513 6514 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6515 } 6516 6517 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6518 struct ieee80211_vif *vif, 6519 struct cfg80211_set_hw_timestamp *hwts) 6520 { 6521 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6522 u32 protocols = 0; 6523 6524 /* HW timestamping is only supported for a specific station */ 6525 if (!hwts->macaddr) 6526 return -EOPNOTSUPP; 6527 6528 if (hwts->enable) 6529 protocols = 6530 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6531 6532 guard(mvm)(mvm); 6533 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6534 } 6535 6536 const struct ieee80211_ops iwl_mvm_hw_ops = { 6537 .tx = iwl_mvm_mac_tx, 6538 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6539 .ampdu_action = iwl_mvm_mac_ampdu_action, 6540 .get_antenna = iwl_mvm_op_get_antenna, 6541 .set_antenna = iwl_mvm_op_set_antenna, 6542 .start = iwl_mvm_mac_start, 6543 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6544 .stop = iwl_mvm_mac_stop, 6545 .add_interface = iwl_mvm_mac_add_interface, 6546 .remove_interface = iwl_mvm_mac_remove_interface, 6547 .config = iwl_mvm_mac_config, 6548 .prepare_multicast = iwl_mvm_prepare_multicast, 6549 .configure_filter = iwl_mvm_configure_filter, 6550 .config_iface_filter = iwl_mvm_config_iface_filter, 6551 .bss_info_changed = iwl_mvm_bss_info_changed, 6552 .hw_scan = iwl_mvm_mac_hw_scan, 6553 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6554 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6555 .sta_state = iwl_mvm_mac_sta_state, 6556 .sta_notify = iwl_mvm_mac_sta_notify, 6557 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6558 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6559 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6560 .link_sta_rc_update = iwl_mvm_sta_rc_update, 6561 .conf_tx = iwl_mvm_mac_conf_tx, 6562 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6563 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6564 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6565 .flush = iwl_mvm_mac_flush, 6566 .flush_sta = iwl_mvm_mac_flush_sta, 6567 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6568 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6569 .set_key = iwl_mvm_mac_set_key, 6570 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6571 .remain_on_channel = iwl_mvm_roc, 6572 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6573 .add_chanctx = iwl_mvm_add_chanctx, 6574 .remove_chanctx = iwl_mvm_remove_chanctx, 6575 .change_chanctx = iwl_mvm_change_chanctx, 6576 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6577 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6578 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6579 6580 .start_ap = iwl_mvm_start_ap, 6581 .stop_ap = iwl_mvm_stop_ap, 6582 .join_ibss = iwl_mvm_start_ibss, 6583 .leave_ibss = iwl_mvm_stop_ibss, 6584 6585 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6586 6587 .set_tim = iwl_mvm_set_tim, 6588 6589 .channel_switch = iwl_mvm_channel_switch, 6590 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6591 .post_channel_switch = iwl_mvm_post_channel_switch, 6592 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6593 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6594 6595 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6596 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6597 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6598 6599 .event_callback = iwl_mvm_mac_event_callback, 6600 6601 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6602 6603 #ifdef CONFIG_PM_SLEEP 6604 /* look at d3.c */ 6605 .suspend = iwl_mvm_suspend, 6606 .resume = iwl_mvm_resume, 6607 .set_wakeup = iwl_mvm_set_wakeup, 6608 .set_rekey_data = iwl_mvm_set_rekey_data, 6609 #if IS_ENABLED(CONFIG_IPV6) 6610 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6611 #endif 6612 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6613 #endif 6614 .get_survey = iwl_mvm_mac_get_survey, 6615 .sta_statistics = iwl_mvm_mac_sta_statistics, 6616 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6617 .start_pmsr = iwl_mvm_start_pmsr, 6618 .abort_pmsr = iwl_mvm_abort_pmsr, 6619 6620 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6621 #ifdef CONFIG_IWLWIFI_DEBUGFS 6622 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6623 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6624 #endif 6625 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6626 }; 6627