1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-nvm-utils.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 #include "time-sync.h" 32 33 #define IWL_MVM_LIMITS(ap) \ 34 { \ 35 .max = 1, \ 36 .types = BIT(NL80211_IFTYPE_STATION), \ 37 }, \ 38 { \ 39 .max = 1, \ 40 .types = ap | \ 41 BIT(NL80211_IFTYPE_P2P_CLIENT) | \ 42 BIT(NL80211_IFTYPE_P2P_GO), \ 43 }, \ 44 { \ 45 .max = 1, \ 46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), \ 47 } 48 49 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 50 IWL_MVM_LIMITS(0) 51 }; 52 53 static const struct ieee80211_iface_limit iwl_mvm_limits_ap[] = { 54 IWL_MVM_LIMITS(BIT(NL80211_IFTYPE_AP)) 55 }; 56 57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 58 { 59 .num_different_channels = 2, 60 .max_interfaces = 3, 61 .limits = iwl_mvm_limits, 62 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 63 }, 64 { 65 .num_different_channels = 1, 66 .max_interfaces = 3, 67 .limits = iwl_mvm_limits_ap, 68 .n_limits = ARRAY_SIZE(iwl_mvm_limits_ap), 69 }, 70 }; 71 72 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 73 .max_peers = IWL_MVM_TOF_MAX_APS, 74 .report_ap_tsf = 1, 75 .randomize_mac_addr = 1, 76 77 .ftm = { 78 .supported = 1, 79 .asap = 1, 80 .non_asap = 1, 81 .request_lci = 1, 82 .request_civicloc = 1, 83 .trigger_based = 1, 84 .non_trigger_based = 1, 85 .max_bursts_exponent = -1, /* all supported */ 86 .max_ftms_per_burst = 0, /* no limits */ 87 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 88 BIT(NL80211_CHAN_WIDTH_20) | 89 BIT(NL80211_CHAN_WIDTH_40) | 90 BIT(NL80211_CHAN_WIDTH_80) | 91 BIT(NL80211_CHAN_WIDTH_160), 92 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 93 BIT(NL80211_PREAMBLE_HT) | 94 BIT(NL80211_PREAMBLE_VHT) | 95 BIT(NL80211_PREAMBLE_HE), 96 }, 97 }; 98 99 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 100 enum set_key_cmd cmd, 101 struct ieee80211_vif *vif, 102 struct ieee80211_sta *sta, 103 struct ieee80211_key_conf *key); 104 105 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 106 { 107 int i; 108 109 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 110 for (i = 0; i < NUM_PHY_CTX; i++) { 111 mvm->phy_ctxts[i].id = i; 112 mvm->phy_ctxts[i].ref = 0; 113 } 114 } 115 116 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 117 const char *alpha2, 118 enum iwl_mcc_source src_id, 119 bool *changed) 120 { 121 struct ieee80211_regdomain *regd = NULL; 122 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 124 struct iwl_mcc_update_resp_v8 *resp; 125 u8 resp_ver; 126 127 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 128 129 lockdep_assert_held(&mvm->mutex); 130 131 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 132 if (IS_ERR_OR_NULL(resp)) { 133 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 134 PTR_ERR_OR_ZERO(resp)); 135 resp = NULL; 136 goto out; 137 } 138 139 if (changed) { 140 u32 status = le32_to_cpu(resp->status); 141 142 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 143 status == MCC_RESP_ILLEGAL); 144 } 145 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 146 MCC_UPDATE_CMD, 0); 147 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 148 149 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 150 __le32_to_cpu(resp->n_channels), 151 resp->channels, 152 __le16_to_cpu(resp->mcc), 153 __le16_to_cpu(resp->geo_info), 154 le32_to_cpu(resp->cap), resp_ver); 155 /* Store the return source id */ 156 src_id = resp->source_id; 157 if (IS_ERR_OR_NULL(regd)) { 158 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 159 PTR_ERR_OR_ZERO(regd)); 160 goto out; 161 } 162 163 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 164 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 165 mvm->lar_regdom_set = true; 166 mvm->mcc_src = src_id; 167 168 if (!iwl_puncturing_is_allowed_in_bios(mvm->bios_enable_puncturing, 169 le16_to_cpu(resp->mcc))) 170 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING); 171 else 172 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags); 173 174 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 175 176 out: 177 kfree(resp); 178 return regd; 179 } 180 181 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 182 { 183 bool changed; 184 struct ieee80211_regdomain *regd; 185 186 if (!iwl_mvm_is_lar_supported(mvm)) 187 return; 188 189 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 190 if (!IS_ERR_OR_NULL(regd)) { 191 /* only update the regulatory core if changed */ 192 if (changed) 193 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 194 195 kfree(regd); 196 } 197 } 198 199 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 200 bool *changed) 201 { 202 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 203 iwl_mvm_is_wifi_mcc_supported(mvm) ? 204 MCC_SOURCE_GET_CURRENT : 205 MCC_SOURCE_OLD_FW, changed); 206 } 207 208 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync) 209 { 210 enum iwl_mcc_source used_src; 211 struct ieee80211_regdomain *regd; 212 int ret; 213 bool changed; 214 const struct ieee80211_regdomain *r = 215 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 216 217 if (!r) 218 return -ENOENT; 219 220 /* save the last source in case we overwrite it below */ 221 used_src = mvm->mcc_src; 222 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 223 /* Notify the firmware we support wifi location updates */ 224 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 225 if (!IS_ERR_OR_NULL(regd)) 226 kfree(regd); 227 } 228 229 /* Now set our last stored MCC and source */ 230 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 231 &changed); 232 if (IS_ERR_OR_NULL(regd)) 233 return -EIO; 234 235 /* update cfg80211 if the regdomain was changed or the caller explicitly 236 * asked to update regdomain 237 */ 238 if (changed || force_regd_sync) 239 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 240 else 241 ret = 0; 242 243 kfree(regd); 244 return ret; 245 } 246 247 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */ 248 static const u8 he_if_types_ext_capa_sta[] = { 249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 251 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 252 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 253 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 254 }; 255 256 static const u8 tm_if_types_ext_capa_sta[] = { 257 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 258 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT | 259 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT, 260 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF | 261 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB, 262 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB, 263 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 264 }; 265 266 /* Additional interface types for which extended capabilities are 267 * specified separately 268 */ 269 270 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \ 271 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \ 272 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \ 273 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \ 274 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY)) 275 #define IWL_MVM_MLD_CAPA_OPS FIELD_PREP_CONST( \ 276 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \ 277 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME) 278 279 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 280 { 281 .iftype = NL80211_IFTYPE_STATION, 282 .extended_capabilities = he_if_types_ext_capa_sta, 283 .extended_capabilities_mask = he_if_types_ext_capa_sta, 284 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 285 /* relevant only if EHT is supported */ 286 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 287 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 288 }, 289 { 290 .iftype = NL80211_IFTYPE_STATION, 291 .extended_capabilities = tm_if_types_ext_capa_sta, 292 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 293 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 294 /* relevant only if EHT is supported */ 295 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 296 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 297 }, 298 }; 299 300 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 301 { 302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 303 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 304 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 305 return 0; 306 } 307 308 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 309 { 310 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 311 312 /* This has been tested on those devices only */ 313 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 314 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) 315 return -EOPNOTSUPP; 316 317 if (!mvm->nvm_data) 318 return -EBUSY; 319 320 /* mac80211 ensures the device is not started, 321 * so the firmware cannot be running 322 */ 323 324 mvm->set_tx_ant = tx_ant; 325 mvm->set_rx_ant = rx_ant; 326 327 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 328 329 return 0; 330 } 331 332 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 333 { 334 struct ieee80211_hw *hw = mvm->hw; 335 int num_mac, ret, i; 336 static const u32 mvm_ciphers[] = { 337 WLAN_CIPHER_SUITE_WEP40, 338 WLAN_CIPHER_SUITE_WEP104, 339 WLAN_CIPHER_SUITE_TKIP, 340 WLAN_CIPHER_SUITE_CCMP, 341 }; 342 #ifdef CONFIG_PM_SLEEP 343 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 344 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 345 #endif 346 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 347 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 348 349 /* Tell mac80211 our characteristics */ 350 ieee80211_hw_set(hw, SIGNAL_DBM); 351 ieee80211_hw_set(hw, SPECTRUM_MGMT); 352 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 353 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 354 ieee80211_hw_set(hw, SUPPORTS_PS); 355 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 356 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 357 ieee80211_hw_set(hw, CONNECTION_MONITOR); 358 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 359 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 360 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 361 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 362 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 363 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 364 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 365 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 366 367 /* Set this early since we need to have it for the check below */ 368 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 369 !iwlwifi_mod_params.disable_11ax && 370 !iwlwifi_mod_params.disable_11be) { 371 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 372 /* we handle this already earlier, but need it for MLO */ 373 ieee80211_hw_set(hw, HANDLES_QUIET_CSA); 374 } 375 376 /* With MLD FW API, it tracks timing by itself, 377 * no need for any timing from the host 378 */ 379 if (!mvm->mld_api_is_used) 380 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 381 382 /* 383 * On older devices, enabling TX A-MSDU occasionally leads to 384 * something getting messed up, the command read from the FIFO 385 * gets out of sync and isn't a TX command, so that we have an 386 * assert EDC. 387 * 388 * It's not clear where the bug is, but since we didn't used to 389 * support A-MSDU until moving the mac80211 iTXQs, just leave it 390 * for older devices. We also don't see this issue on any newer 391 * devices. 392 */ 393 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 394 ieee80211_hw_set(hw, TX_AMSDU); 395 ieee80211_hw_set(hw, TX_FRAG_LIST); 396 397 if (iwl_mvm_has_tlc_offload(mvm)) { 398 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 399 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 400 } 401 402 /* We want to use the mac80211's reorder buffer for 9000 */ 403 if (iwl_mvm_has_new_rx_api(mvm) && 404 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 405 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 406 407 if (fw_has_capa(&mvm->fw->ucode_capa, 408 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 409 ieee80211_hw_set(hw, AP_LINK_PS); 410 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 411 /* 412 * we absolutely need this for the new TX API since that comes 413 * with many more queues than the current code can deal with 414 * for station powersave 415 */ 416 return -EINVAL; 417 } 418 419 if (mvm->trans->num_rx_queues > 1) 420 ieee80211_hw_set(hw, USES_RSS); 421 422 if (mvm->trans->max_skb_frags) 423 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 424 425 hw->queues = IEEE80211_NUM_ACS; 426 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 427 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 428 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 429 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 430 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 431 432 hw->radiotap_timestamp.units_pos = 433 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 434 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 435 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 436 hw->radiotap_timestamp.accuracy = 22; 437 438 if (!iwl_mvm_has_tlc_offload(mvm)) 439 hw->rate_control_algorithm = RS_NAME; 440 441 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 442 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 443 hw->max_tx_fragments = mvm->trans->max_skb_frags; 444 445 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 446 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 447 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 448 hw->wiphy->cipher_suites = mvm->ciphers; 449 450 if (iwl_mvm_has_new_rx_api(mvm)) { 451 mvm->ciphers[hw->wiphy->n_cipher_suites] = 452 WLAN_CIPHER_SUITE_GCMP; 453 hw->wiphy->n_cipher_suites++; 454 mvm->ciphers[hw->wiphy->n_cipher_suites] = 455 WLAN_CIPHER_SUITE_GCMP_256; 456 hw->wiphy->n_cipher_suites++; 457 } 458 459 if (iwlwifi_mod_params.swcrypto) 460 IWL_ERR(mvm, 461 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 462 if (!iwlwifi_mod_params.bt_coex_active) 463 IWL_ERR(mvm, 464 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 465 466 ieee80211_hw_set(hw, MFP_CAPABLE); 467 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 468 hw->wiphy->n_cipher_suites++; 469 if (iwl_mvm_has_new_rx_api(mvm)) { 470 mvm->ciphers[hw->wiphy->n_cipher_suites] = 471 WLAN_CIPHER_SUITE_BIP_GMAC_128; 472 hw->wiphy->n_cipher_suites++; 473 mvm->ciphers[hw->wiphy->n_cipher_suites] = 474 WLAN_CIPHER_SUITE_BIP_GMAC_256; 475 hw->wiphy->n_cipher_suites++; 476 } 477 478 wiphy_ext_feature_set(hw->wiphy, 479 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 480 wiphy_ext_feature_set(hw->wiphy, 481 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 482 483 if (fw_has_capa(&mvm->fw->ucode_capa, 484 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 485 wiphy_ext_feature_set(hw->wiphy, 486 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 487 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 488 } 489 490 if (sec_key_ver && 491 fw_has_capa(&mvm->fw->ucode_capa, 492 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 493 wiphy_ext_feature_set(hw->wiphy, 494 NL80211_EXT_FEATURE_BEACON_PROTECTION); 495 else if (fw_has_capa(&mvm->fw->ucode_capa, 496 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 497 wiphy_ext_feature_set(hw->wiphy, 498 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 499 500 if (fw_has_capa(&mvm->fw->ucode_capa, 501 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 502 hw->wiphy->hw_timestamp_max_peers = 1; 503 504 if (fw_has_capa(&mvm->fw->ucode_capa, 505 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 506 wiphy_ext_feature_set(hw->wiphy, 507 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 508 509 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 510 hw->wiphy->features |= 511 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 512 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 513 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 514 515 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 516 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 517 hw->chanctx_data_size = sizeof(u16); 518 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 519 520 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 521 BIT(NL80211_IFTYPE_P2P_CLIENT) | 522 BIT(NL80211_IFTYPE_AP) | 523 BIT(NL80211_IFTYPE_P2P_GO) | 524 BIT(NL80211_IFTYPE_P2P_DEVICE) | 525 BIT(NL80211_IFTYPE_ADHOC); 526 527 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 528 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 529 530 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 531 * the hw, preventing us to control which key(id) to use per MPDU. 532 * Till that's fixed we can't use Extended Key ID for the newer cards. 533 */ 534 if (!iwl_mvm_has_new_tx_api(mvm)) 535 wiphy_ext_feature_set(hw->wiphy, 536 NL80211_EXT_FEATURE_EXT_KEY_ID); 537 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 538 539 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 540 if (iwl_mvm_is_lar_supported(mvm)) 541 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 542 else 543 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 544 REGULATORY_DISABLE_BEACON_HINTS; 545 546 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 547 wiphy_ext_feature_set(hw->wiphy, 548 NL80211_EXT_FEATURE_DFS_CONCURRENT); 549 550 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 551 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 552 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 553 554 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 555 hw->wiphy->n_iface_combinations = 556 ARRAY_SIZE(iwl_mvm_iface_combinations); 557 558 hw->wiphy->max_remain_on_channel_duration = 10000; 559 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 560 561 /* Extract MAC address */ 562 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 563 hw->wiphy->addresses = mvm->addresses; 564 hw->wiphy->n_addresses = 1; 565 566 /* Extract additional MAC addresses if available */ 567 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 568 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 569 570 for (i = 1; i < num_mac; i++) { 571 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 572 ETH_ALEN); 573 mvm->addresses[i].addr[5]++; 574 hw->wiphy->n_addresses++; 575 } 576 577 iwl_mvm_reset_phy_ctxts(mvm); 578 579 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 580 581 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 582 583 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 584 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 585 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 586 587 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 588 mvm->max_scans = IWL_MAX_UMAC_SCANS; 589 else 590 mvm->max_scans = IWL_MAX_LMAC_SCANS; 591 592 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 593 hw->wiphy->bands[NL80211_BAND_2GHZ] = 594 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 595 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 596 hw->wiphy->bands[NL80211_BAND_5GHZ] = 597 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 598 599 if (fw_has_capa(&mvm->fw->ucode_capa, 600 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 601 fw_has_api(&mvm->fw->ucode_capa, 602 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 603 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 604 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 605 } 606 if (fw_has_capa(&mvm->fw->ucode_capa, 607 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 608 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 609 hw->wiphy->bands[NL80211_BAND_6GHZ] = 610 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 611 612 hw->wiphy->hw_version = mvm->trans->hw_id; 613 614 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 615 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 616 else 617 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 618 619 hw->wiphy->max_sched_scan_reqs = 1; 620 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 621 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 622 /* we create the 802.11 header and zero length SSID IE. */ 623 hw->wiphy->max_sched_scan_ie_len = 624 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 625 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 626 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 627 628 /* 629 * the firmware uses u8 for num of iterations, but 0xff is saved for 630 * infinite loop, so the maximum number of iterations is actually 254. 631 */ 632 hw->wiphy->max_sched_scan_plan_iterations = 254; 633 634 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 635 NL80211_FEATURE_LOW_PRIORITY_SCAN | 636 NL80211_FEATURE_P2P_GO_OPPPS | 637 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 639 640 /* when firmware supports RLC/SMPS offload, do not set these 641 * driver features, since it's no longer supported by driver. 642 */ 643 if (!iwl_mvm_has_rlc_offload(mvm)) 644 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS | 645 NL80211_FEATURE_DYNAMIC_SMPS; 646 647 if (fw_has_capa(&mvm->fw->ucode_capa, 648 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 649 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 650 if (fw_has_capa(&mvm->fw->ucode_capa, 651 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 652 hw->wiphy->features |= NL80211_FEATURE_QUIET; 653 654 if (fw_has_capa(&mvm->fw->ucode_capa, 655 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 656 hw->wiphy->features |= 657 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 658 659 if (fw_has_capa(&mvm->fw->ucode_capa, 660 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 661 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 662 663 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 664 IWL_FW_CMD_VER_UNKNOWN) >= 3) 665 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 666 667 if (fw_has_api(&mvm->fw->ucode_capa, 668 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 669 wiphy_ext_feature_set(hw->wiphy, 670 NL80211_EXT_FEATURE_SCAN_START_TIME); 671 wiphy_ext_feature_set(hw->wiphy, 672 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 673 } 674 675 if (iwl_mvm_is_oce_supported(mvm)) { 676 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 677 678 wiphy_ext_feature_set(hw->wiphy, 679 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 680 wiphy_ext_feature_set(hw->wiphy, 681 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 682 wiphy_ext_feature_set(hw->wiphy, 683 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 684 685 /* Old firmware also supports probe deferral and suppression */ 686 if (scan_ver < 15) 687 wiphy_ext_feature_set(hw->wiphy, 688 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 689 } 690 691 hw->wiphy->iftype_ext_capab = NULL; 692 hw->wiphy->num_iftype_ext_capab = 0; 693 694 if (mvm->nvm_data->sku_cap_11ax_enable && 695 !iwlwifi_mod_params.disable_11ax) { 696 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 697 hw->wiphy->num_iftype_ext_capab = 698 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 699 700 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 701 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 702 } 703 704 if (iwl_fw_lookup_cmd_ver(mvm->fw, 705 WIDE_ID(DATA_PATH_GROUP, 706 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 707 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 708 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 709 710 if (!hw->wiphy->iftype_ext_capab) { 711 hw->wiphy->num_iftype_ext_capab = 1; 712 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 713 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 714 } else { 715 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 716 } 717 } 718 719 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 720 TOF_RANGE_REQ_CMD), 721 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 722 wiphy_ext_feature_set(hw->wiphy, 723 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 724 725 if (fw_has_capa(&mvm->fw->ucode_capa, 726 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 727 wiphy_ext_feature_set(hw->wiphy, 728 NL80211_EXT_FEATURE_SECURE_LTF); 729 } 730 731 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 732 733 ieee80211_hw_set(hw, DISALLOW_PUNCTURING_5GHZ); 734 735 #ifdef CONFIG_PM_SLEEP 736 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 737 device_can_wakeup(mvm->trans->dev)) { 738 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 739 WIPHY_WOWLAN_DISCONNECT | 740 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 741 WIPHY_WOWLAN_RFKILL_RELEASE | 742 WIPHY_WOWLAN_NET_DETECT; 743 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 744 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 745 WIPHY_WOWLAN_4WAY_HANDSHAKE; 746 747 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 748 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 749 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 750 mvm->wowlan.max_nd_match_sets = 751 iwl_umac_scan_get_max_profiles(mvm->fw); 752 hw->wiphy->wowlan = &mvm->wowlan; 753 } 754 #endif 755 756 ret = iwl_mvm_leds_init(mvm); 757 if (ret) 758 return ret; 759 760 if (fw_has_capa(&mvm->fw->ucode_capa, 761 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 762 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 763 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 764 ieee80211_hw_set(hw, TDLS_WIDER_BW); 765 } 766 767 if (fw_has_capa(&mvm->fw->ucode_capa, 768 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 769 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 770 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 771 } 772 773 hw->netdev_features |= mvm->cfg->features; 774 if (!iwl_mvm_is_csum_supported(mvm)) 775 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 776 777 if (mvm->cfg->vht_mu_mimo_supported) 778 wiphy_ext_feature_set(hw->wiphy, 779 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 780 781 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 782 wiphy_ext_feature_set(hw->wiphy, 783 NL80211_EXT_FEATURE_PROTECTED_TWT); 784 785 iwl_mvm_vendor_cmds_register(mvm); 786 787 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 788 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 789 790 ret = ieee80211_register_hw(mvm->hw); 791 if (ret) { 792 iwl_mvm_leds_exit(mvm); 793 } 794 795 return ret; 796 } 797 798 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 799 struct ieee80211_sta *sta) 800 { 801 if (likely(sta)) { 802 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 803 return; 804 } else { 805 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 806 return; 807 } 808 809 ieee80211_free_txskb(mvm->hw, skb); 810 } 811 812 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 813 struct ieee80211_tx_control *control, struct sk_buff *skb) 814 { 815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 816 struct ieee80211_sta *sta = control->sta; 817 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 818 struct ieee80211_hdr *hdr = (void *)skb->data; 819 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 820 IEEE80211_TX_CTL_TX_OFFCHAN; 821 u32 link_id = u32_get_bits(info->control.flags, 822 IEEE80211_TX_CTRL_MLO_LINK); 823 struct ieee80211_sta *tmp_sta = sta; 824 825 if (iwl_mvm_is_radio_killed(mvm)) { 826 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 827 goto drop; 828 } 829 830 if (offchannel && 831 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) && 832 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 833 goto drop; 834 835 /* 836 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 837 * so we treat the others as broadcast 838 */ 839 if (ieee80211_is_mgmt(hdr->frame_control)) 840 sta = NULL; 841 842 /* this shouldn't even happen: just drop */ 843 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 844 !offchannel) 845 goto drop; 846 847 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 848 !ieee80211_is_probe_resp(hdr->frame_control)) { 849 /* translate MLD addresses to LINK addresses */ 850 struct ieee80211_link_sta *link_sta = 851 rcu_dereference(tmp_sta->link[link_id]); 852 struct ieee80211_bss_conf *link_conf = 853 rcu_dereference(info->control.vif->link_conf[link_id]); 854 struct ieee80211_mgmt *mgmt; 855 856 if (WARN_ON(!link_sta || !link_conf)) 857 goto drop; 858 859 /* if sta is NULL, the frame is a management frame */ 860 mgmt = (void *)hdr; 861 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 862 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 863 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 864 } 865 866 iwl_mvm_tx_skb(mvm, skb, sta); 867 return; 868 drop: 869 ieee80211_free_txskb(hw, skb); 870 } 871 872 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 873 { 874 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 875 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 876 struct sk_buff *skb = NULL; 877 878 /* 879 * No need for threads to be pending here, they can leave the first 880 * taker all the work. 881 * 882 * mvmtxq->tx_request logic: 883 * 884 * If 0, no one is currently TXing, set to 1 to indicate current thread 885 * will now start TX and other threads should quit. 886 * 887 * If 1, another thread is currently TXing, set to 2 to indicate to 888 * that thread that there was another request. Since that request may 889 * have raced with the check whether the queue is empty, the TXing 890 * thread should check the queue's status one more time before leaving. 891 * This check is done in order to not leave any TX hanging in the queue 892 * until the next TX invocation (which may not even happen). 893 * 894 * If 2, another thread is currently TXing, and it will already double 895 * check the queue, so do nothing. 896 */ 897 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 898 return; 899 900 rcu_read_lock(); 901 do { 902 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 903 &mvmtxq->state) && 904 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 905 &mvmtxq->state) && 906 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, 907 &mvmtxq->state) && 908 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 909 skb = ieee80211_tx_dequeue(hw, txq); 910 911 if (!skb) { 912 if (txq->sta) 913 IWL_DEBUG_TX(mvm, 914 "TXQ of sta %pM tid %d is now empty\n", 915 txq->sta->addr, 916 txq->tid); 917 break; 918 } 919 920 iwl_mvm_tx_skb(mvm, skb, txq->sta); 921 } 922 } while (atomic_dec_return(&mvmtxq->tx_request)); 923 rcu_read_unlock(); 924 } 925 926 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 927 struct ieee80211_txq *txq) 928 { 929 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 930 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 931 932 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 933 !txq->sta) { 934 iwl_mvm_mac_itxq_xmit(hw, txq); 935 return; 936 } 937 938 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 939 * to handle any packets we leave on the txq now 940 */ 941 942 spin_lock_bh(&mvm->add_stream_lock); 943 /* The list is being deleted only after the queue is fully allocated. */ 944 if (list_empty(&mvmtxq->list) && 945 /* recheck under lock */ 946 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 947 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 948 schedule_work(&mvm->add_stream_wk); 949 } 950 spin_unlock_bh(&mvm->add_stream_lock); 951 } 952 953 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 954 do { \ 955 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 956 break; \ 957 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 958 } while (0) 959 960 static void 961 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 962 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 963 enum ieee80211_ampdu_mlme_action action) 964 { 965 struct iwl_fw_dbg_trigger_tlv *trig; 966 struct iwl_fw_dbg_trigger_ba *ba_trig; 967 968 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 969 FW_DBG_TRIGGER_BA); 970 if (!trig) 971 return; 972 973 ba_trig = (void *)trig->data; 974 975 switch (action) { 976 case IEEE80211_AMPDU_TX_OPERATIONAL: { 977 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 978 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 979 980 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 981 "TX AGG START: MAC %pM tid %d ssn %d\n", 982 sta->addr, tid, tid_data->ssn); 983 break; 984 } 985 case IEEE80211_AMPDU_TX_STOP_CONT: 986 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 987 "TX AGG STOP: MAC %pM tid %d\n", 988 sta->addr, tid); 989 break; 990 case IEEE80211_AMPDU_RX_START: 991 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 992 "RX AGG START: MAC %pM tid %d ssn %d\n", 993 sta->addr, tid, rx_ba_ssn); 994 break; 995 case IEEE80211_AMPDU_RX_STOP: 996 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 997 "RX AGG STOP: MAC %pM tid %d\n", 998 sta->addr, tid); 999 break; 1000 default: 1001 break; 1002 } 1003 } 1004 1005 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1006 struct ieee80211_vif *vif, 1007 struct ieee80211_ampdu_params *params) 1008 { 1009 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1010 int ret; 1011 struct ieee80211_sta *sta = params->sta; 1012 enum ieee80211_ampdu_mlme_action action = params->action; 1013 u16 tid = params->tid; 1014 u16 *ssn = ¶ms->ssn; 1015 u16 buf_size = params->buf_size; 1016 bool amsdu = params->amsdu; 1017 u16 timeout = params->timeout; 1018 1019 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1020 sta->addr, tid, action); 1021 1022 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1023 return -EACCES; 1024 1025 mutex_lock(&mvm->mutex); 1026 1027 switch (action) { 1028 case IEEE80211_AMPDU_RX_START: 1029 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1030 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1031 struct iwl_mvm_vif *mvmvif; 1032 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1033 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1034 1035 mdata->opened_rx_ba_sessions = true; 1036 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1037 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1038 } 1039 if (!iwl_enable_rx_ampdu()) { 1040 ret = -EINVAL; 1041 break; 1042 } 1043 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1044 timeout); 1045 break; 1046 case IEEE80211_AMPDU_RX_STOP: 1047 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1048 timeout); 1049 break; 1050 case IEEE80211_AMPDU_TX_START: 1051 if (!iwl_enable_tx_ampdu()) { 1052 ret = -EINVAL; 1053 break; 1054 } 1055 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1056 break; 1057 case IEEE80211_AMPDU_TX_STOP_CONT: 1058 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1059 break; 1060 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1061 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1062 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1063 break; 1064 case IEEE80211_AMPDU_TX_OPERATIONAL: 1065 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1066 buf_size, amsdu); 1067 break; 1068 default: 1069 WARN_ON_ONCE(1); 1070 ret = -EINVAL; 1071 break; 1072 } 1073 1074 if (!ret) { 1075 u16 rx_ba_ssn = 0; 1076 1077 if (action == IEEE80211_AMPDU_RX_START) 1078 rx_ba_ssn = *ssn; 1079 1080 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1081 rx_ba_ssn, action); 1082 } 1083 mutex_unlock(&mvm->mutex); 1084 1085 return ret; 1086 } 1087 1088 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1089 struct ieee80211_vif *vif) 1090 { 1091 struct iwl_mvm *mvm = data; 1092 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1093 struct iwl_probe_resp_data *probe_data; 1094 unsigned int link_id; 1095 1096 mvmvif->uploaded = false; 1097 1098 spin_lock_bh(&mvm->time_event_lock); 1099 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1100 spin_unlock_bh(&mvm->time_event_lock); 1101 1102 mvmvif->roc_activity = ROC_NUM_ACTIVITIES; 1103 1104 mvmvif->bf_enabled = false; 1105 mvmvif->ba_enabled = false; 1106 mvmvif->ap_sta = NULL; 1107 1108 mvmvif->esr_active = false; 1109 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE; 1110 1111 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1112 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA; 1113 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1114 mvmvif->link[link_id]->phy_ctxt = NULL; 1115 mvmvif->link[link_id]->active = 0; 1116 mvmvif->link[link_id]->igtk = NULL; 1117 memset(&mvmvif->link[link_id]->bf_data, 0, 1118 sizeof(mvmvif->link[link_id]->bf_data)); 1119 } 1120 1121 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1122 lockdep_is_held(&mvm->mutex)); 1123 if (probe_data) 1124 kfree_rcu(probe_data, rcu_head); 1125 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1126 } 1127 1128 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1129 { 1130 struct iwl_mvm *mvm = data; 1131 struct iwl_mvm_sta *mvm_sta; 1132 struct ieee80211_vif *vif; 1133 int link_id; 1134 1135 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1136 vif = mvm_sta->vif; 1137 1138 if (!sta->valid_links) 1139 return; 1140 1141 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1142 struct iwl_mvm_link_sta *mvm_link_sta; 1143 1144 mvm_link_sta = 1145 rcu_dereference_check(mvm_sta->link[link_id], 1146 lockdep_is_held(&mvm->mutex)); 1147 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1148 /* 1149 * We have a link STA but the link is inactive in 1150 * mac80211. This will happen if we failed to 1151 * deactivate the link but mac80211 roll back the 1152 * deactivation of the link. 1153 * Delete the stale data to avoid issues later on. 1154 */ 1155 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1156 link_id, false); 1157 } 1158 } 1159 } 1160 1161 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1162 { 1163 iwl_mvm_stop_device(mvm); 1164 1165 mvm->cur_aid = 0; 1166 1167 mvm->scan_status = 0; 1168 mvm->ps_disabled = false; 1169 mvm->rfkill_safe_init_done = false; 1170 1171 /* just in case one was running */ 1172 iwl_mvm_cleanup_roc_te(mvm); 1173 ieee80211_remain_on_channel_expired(mvm->hw); 1174 1175 iwl_mvm_ftm_restart(mvm); 1176 1177 /* 1178 * cleanup all interfaces, even inactive ones, as some might have 1179 * gone down during the HW restart 1180 */ 1181 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1182 1183 /* cleanup stations as links may be gone after restart */ 1184 ieee80211_iterate_stations_atomic(mvm->hw, 1185 iwl_mvm_cleanup_sta_iterator, mvm); 1186 1187 mvm->p2p_device_vif = NULL; 1188 1189 iwl_mvm_reset_phy_ctxts(mvm); 1190 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1191 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1192 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1193 1194 ieee80211_wake_queues(mvm->hw); 1195 1196 mvm->rx_ba_sessions = 0; 1197 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1198 mvm->monitor_on = false; 1199 #ifdef CONFIG_IWLWIFI_DEBUGFS 1200 mvm->beacon_inject_active = false; 1201 #endif 1202 1203 /* keep statistics ticking */ 1204 iwl_mvm_accu_radio_stats(mvm); 1205 } 1206 1207 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1208 { 1209 bool fast_resume = false; 1210 int ret; 1211 1212 lockdep_assert_held(&mvm->mutex); 1213 1214 ret = iwl_mvm_mei_get_ownership(mvm); 1215 if (ret) 1216 return ret; 1217 1218 if (mvm->mei_nvm_data) { 1219 /* We got the NIC, we can now free the MEI NVM data */ 1220 kfree(mvm->mei_nvm_data); 1221 mvm->mei_nvm_data = NULL; 1222 1223 /* 1224 * We can't free the nvm_data we allocated based on the SAP 1225 * data because we registered to cfg80211 with the channels 1226 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1227 * just in order to be able free it later. 1228 * NULLify nvm_data so that we will read the NVM from the 1229 * firmware this time. 1230 */ 1231 mvm->temp_nvm_data = mvm->nvm_data; 1232 mvm->nvm_data = NULL; 1233 } 1234 1235 #ifdef CONFIG_PM_SLEEP 1236 /* fast_resume will be cleared by iwl_mvm_fast_resume */ 1237 fast_resume = mvm->fast_resume; 1238 1239 if (fast_resume) { 1240 ret = iwl_mvm_fast_resume(mvm); 1241 if (ret) { 1242 iwl_mvm_stop_device(mvm); 1243 /* iwl_mvm_up() will be called further down */ 1244 } else { 1245 /* 1246 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon 1247 * mac_down() so that debugfs will stop honoring 1248 * requests after we flush all the workers. 1249 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again 1250 * now that we are back. This is a bit abusing the 1251 * flag since the firmware wasn't really ever stopped, 1252 * but this still serves the purpose. 1253 */ 1254 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1255 } 1256 } 1257 #endif /* CONFIG_PM_SLEEP */ 1258 1259 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1260 /* 1261 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1262 * so later code will - from now on - see that we're doing it. 1263 */ 1264 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1265 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1266 /* Clean up some internal and mac80211 state on restart */ 1267 iwl_mvm_restart_cleanup(mvm); 1268 } 1269 1270 /* we also want to load the firmware if fast_resume failed */ 1271 if (!fast_resume || ret) 1272 ret = iwl_mvm_up(mvm); 1273 1274 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1275 NULL); 1276 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1277 NULL); 1278 1279 mvm->last_reset_or_resume_time_jiffies = jiffies; 1280 1281 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1282 /* Something went wrong - we need to finish some cleanup 1283 * that normally iwl_mvm_mac_restart_complete() below 1284 * would do. 1285 */ 1286 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1287 } 1288 1289 return ret; 1290 } 1291 1292 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1293 { 1294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1295 int ret; 1296 int retry, max_retry = 0; 1297 1298 mutex_lock(&mvm->mutex); 1299 1300 /* we are starting the mac not in error flow, and restart is enabled */ 1301 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1302 iwlwifi_mod_params.fw_restart) { 1303 max_retry = IWL_MAX_INIT_RETRY; 1304 /* 1305 * This will prevent mac80211 recovery flows to trigger during 1306 * init failures 1307 */ 1308 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1309 } 1310 1311 for (retry = 0; retry <= max_retry; retry++) { 1312 ret = __iwl_mvm_mac_start(mvm); 1313 if (!ret) 1314 break; 1315 1316 IWL_ERR(mvm, "mac start retry %d\n", retry); 1317 } 1318 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1319 1320 mutex_unlock(&mvm->mutex); 1321 1322 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1323 1324 return ret; 1325 } 1326 1327 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1328 { 1329 int ret; 1330 1331 guard(mvm)(mvm); 1332 1333 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1334 1335 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1336 if (ret) 1337 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1338 ret); 1339 1340 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1341 1342 /* 1343 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1344 * of packets the FW sent out, so we must reconnect. 1345 */ 1346 iwl_mvm_teardown_tdls_peers(mvm); 1347 1348 IWL_INFO(mvm, "restart completed\n"); 1349 } 1350 1351 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1352 enum ieee80211_reconfig_type reconfig_type) 1353 { 1354 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1355 1356 switch (reconfig_type) { 1357 case IEEE80211_RECONFIG_TYPE_RESTART: 1358 iwl_mvm_restart_complete(mvm); 1359 break; 1360 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1361 break; 1362 } 1363 } 1364 1365 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend) 1366 { 1367 lockdep_assert_held(&mvm->mutex); 1368 1369 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1370 1371 /* firmware counters are obviously reset now, but we shouldn't 1372 * partially track so also clear the fw_reset_accu counters. 1373 */ 1374 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1375 1376 /* async_handlers_wk is now blocked */ 1377 1378 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1379 iwl_mvm_rm_aux_sta(mvm); 1380 1381 if (suspend && 1382 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 1383 iwl_mvm_fast_suspend(mvm); 1384 else 1385 iwl_mvm_stop_device(mvm); 1386 1387 iwl_mvm_async_handlers_purge(mvm); 1388 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1389 1390 /* 1391 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1392 * hw (as restart_complete() won't be called in this case) and mac80211 1393 * won't execute the restart. 1394 * But make sure to cleanup interfaces that have gone down before/during 1395 * HW restart was requested. 1396 */ 1397 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1398 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1399 &mvm->status)) 1400 ieee80211_iterate_interfaces(mvm->hw, 0, 1401 iwl_mvm_cleanup_iterator, mvm); 1402 1403 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1404 * make sure there's nothing left there and warn if any is found. 1405 */ 1406 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1407 int i; 1408 1409 for (i = 0; i < mvm->max_scans; i++) { 1410 if (WARN_ONCE(mvm->scan_uid_status[i], 1411 "UMAC scan UID %d status was not cleaned\n", 1412 i)) 1413 mvm->scan_uid_status[i] = 0; 1414 } 1415 } 1416 } 1417 1418 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend) 1419 { 1420 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1421 1422 /* Stop internal MLO scan, if running */ 1423 mutex_lock(&mvm->mutex); 1424 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1425 mutex_unlock(&mvm->mutex); 1426 1427 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk); 1428 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1429 flush_work(&mvm->async_handlers_wk); 1430 flush_work(&mvm->add_stream_wk); 1431 1432 /* 1433 * Lock and clear the firmware running bit here already, so that 1434 * new commands coming in elsewhere, e.g. from debugfs, will not 1435 * be able to proceed. This is important here because one of those 1436 * debugfs files causes the firmware dump to be triggered, and if we 1437 * don't stop debugfs accesses before canceling that it could be 1438 * retriggered after we flush it but before we've cleared the bit. 1439 */ 1440 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1441 1442 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1443 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1444 1445 /* 1446 * The work item could be running or queued if the 1447 * ROC time event stops just as we get here. 1448 */ 1449 flush_work(&mvm->roc_done_wk); 1450 1451 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1452 1453 mutex_lock(&mvm->mutex); 1454 __iwl_mvm_mac_stop(mvm, suspend); 1455 mutex_unlock(&mvm->mutex); 1456 1457 /* 1458 * The worker might have been waiting for the mutex, let it run and 1459 * discover that its list is now empty. 1460 */ 1461 cancel_work_sync(&mvm->async_handlers_wk); 1462 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1463 } 1464 1465 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1466 { 1467 u16 i; 1468 1469 lockdep_assert_held(&mvm->mutex); 1470 1471 for (i = 0; i < NUM_PHY_CTX; i++) 1472 if (!mvm->phy_ctxts[i].ref) 1473 return &mvm->phy_ctxts[i]; 1474 1475 IWL_ERR(mvm, "No available PHY context\n"); 1476 return NULL; 1477 } 1478 1479 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, 1480 struct ieee80211_bss_conf *link_conf, 1481 s16 tx_power) 1482 { 1483 u32 cmd_id = REDUCE_TX_POWER_CMD; 1484 u32 mac_id = iwl_mvm_vif_from_mac80211(link_conf->vif)->id; 1485 int len; 1486 struct iwl_dev_tx_power_cmd_v3_v8 cmd = { 1487 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1488 .common.mac_context_id = cpu_to_le32(mac_id), 1489 }; 1490 struct iwl_dev_tx_power_cmd cmd_v9_v10; 1491 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3); 1492 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ? 1493 IWL_DEV_MAX_TX_POWER : 8 * tx_power; 1494 void *cmd_data = &cmd; 1495 1496 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power); 1497 1498 if (cmd_ver > 8) { 1499 /* Those fields sit on the same place for v9 and v10 */ 1500 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC); 1501 cmd_v9_v10.common.mac_context_id = cpu_to_le32(mac_id); 1502 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power); 1503 cmd_data = &cmd_v9_v10; 1504 } 1505 1506 if (cmd_ver == 10) 1507 len = sizeof(cmd_v9_v10.v10); 1508 else if (cmd_ver == 9) 1509 len = sizeof(cmd_v9_v10.v9); 1510 else if (cmd_ver == 8) 1511 len = sizeof(cmd.v8); 1512 else if (cmd_ver == 7) 1513 len = sizeof(cmd.v7); 1514 else if (cmd_ver == 6) 1515 len = sizeof(cmd.v6); 1516 else if (fw_has_api(&mvm->fw->ucode_capa, 1517 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1518 len = sizeof(cmd.v5); 1519 else if (fw_has_capa(&mvm->fw->ucode_capa, 1520 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1521 len = sizeof(cmd.v4); 1522 else 1523 len = sizeof(cmd.v3); 1524 1525 /* all structs have the same common part, add its length */ 1526 len += sizeof(cmd.common); 1527 1528 if (cmd_ver < 9) 1529 len += sizeof(cmd.per_band); 1530 1531 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data); 1532 1533 } 1534 1535 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1536 { 1537 struct ieee80211_hw *hw = data; 1538 int i; 1539 1540 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1541 struct iwl_mvm_txq *mvmtxq = 1542 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1543 1544 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1545 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1546 } 1547 } 1548 1549 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1550 struct ieee80211_vif *vif, 1551 struct ieee80211_bss_conf *link_conf) 1552 { 1553 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1554 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1555 int ret; 1556 1557 mutex_lock(&mvm->mutex); 1558 1559 if (vif->type == NL80211_IFTYPE_STATION) { 1560 struct iwl_mvm_sta *mvmsta; 1561 unsigned int link_id = link_conf->link_id; 1562 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1563 1564 mvmvif->csa_bcn_pending = false; 1565 mvmvif->csa_blocks_tx = false; 1566 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1567 1568 if (WARN_ON(!mvmsta)) { 1569 ret = -EIO; 1570 goto out_unlock; 1571 } 1572 1573 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1574 if (mvm->mld_api_is_used) 1575 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1576 else 1577 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1578 1579 if (!fw_has_capa(&mvm->fw->ucode_capa, 1580 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1581 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1582 if (ret) 1583 goto out_unlock; 1584 1585 iwl_mvm_stop_session_protection(mvm, vif); 1586 } 1587 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1588 struct iwl_mvm_txq *mvmtxq = 1589 iwl_mvm_txq_from_mac80211(vif->txq); 1590 1591 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1592 1593 local_bh_disable(); 1594 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1595 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1596 local_bh_enable(); 1597 1598 mvmvif->csa_blocks_tx = false; 1599 } 1600 1601 mvmvif->ps_disabled = false; 1602 1603 ret = iwl_mvm_power_update_ps(mvm); 1604 1605 out_unlock: 1606 if (mvmvif->csa_failed) 1607 ret = -EIO; 1608 mutex_unlock(&mvm->mutex); 1609 1610 return ret; 1611 } 1612 1613 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1614 struct ieee80211_vif *vif, 1615 struct ieee80211_bss_conf *link_conf) 1616 { 1617 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1618 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1619 struct iwl_chan_switch_te_cmd cmd = { 1620 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1621 mvmvif->color)), 1622 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1623 }; 1624 1625 /* 1626 * In the new flow since FW is in charge of the timing, 1627 * if driver has canceled the channel switch he will receive the 1628 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1629 */ 1630 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1631 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1632 return; 1633 1634 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1635 1636 mutex_lock(&mvm->mutex); 1637 if (!fw_has_capa(&mvm->fw->ucode_capa, 1638 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1639 iwl_mvm_remove_csa_period(mvm, vif); 1640 else 1641 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1642 WIDE_ID(MAC_CONF_GROUP, 1643 CHANNEL_SWITCH_TIME_EVENT_CMD), 1644 0, sizeof(cmd), &cmd)); 1645 mvmvif->csa_failed = true; 1646 mutex_unlock(&mvm->mutex); 1647 1648 /* If we're here, we can't support MLD */ 1649 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1650 } 1651 1652 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1653 { 1654 struct iwl_mvm_vif *mvmvif; 1655 struct ieee80211_vif *vif; 1656 1657 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1658 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1659 1660 /* Trigger disconnect (should clear the CSA state) */ 1661 ieee80211_chswitch_done(vif, false, 0); 1662 } 1663 1664 static u8 1665 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1666 { 1667 int data_start; 1668 int control_start; 1669 int bw; 1670 1671 if (chandef->width == NL80211_CHAN_WIDTH_320) 1672 bw = 320; 1673 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1674 bw = 160; 1675 else 1676 return 0; 1677 1678 /* data is bw wide so the start is half the width */ 1679 data_start = chandef->center_freq1 - bw / 2; 1680 /* control is 20Mhz width */ 1681 control_start = chandef->chan->center_freq - 10; 1682 1683 return (control_start - data_start) / 80; 1684 } 1685 1686 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1687 struct ieee80211_vif *vif) 1688 { 1689 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1690 int ret; 1691 1692 lockdep_assert_held(&mvm->mutex); 1693 1694 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1695 if (ret) { 1696 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1697 return ret; 1698 } 1699 1700 /* Only queue for this station is the mcast queue, 1701 * which shouldn't be in TFD mask anyway 1702 */ 1703 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1704 vif->type, 1705 IWL_STA_MULTICAST); 1706 } 1707 1708 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy, 1709 struct wiphy_work *wk) 1710 { 1711 struct iwl_mvm_vif *mvmvif = 1712 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work); 1713 struct iwl_mvm *mvm = mvmvif->mvm; 1714 struct ieee80211_vif *vif = 1715 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1716 1717 guard(mvm)(mvm); 1718 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION); 1719 } 1720 1721 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) 1722 { 1723 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif, 1724 mlo_int_scan_wk.work); 1725 struct ieee80211_vif *vif = 1726 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1727 1728 guard(mvm)(mvmvif->mvm); 1729 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif); 1730 } 1731 1732 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) 1733 { 1734 struct iwl_mvm_vif *mvmvif = 1735 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); 1736 struct iwl_mvm *mvm = mvmvif->mvm; 1737 struct ieee80211_vif *vif = 1738 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1739 1740 guard(mvm)(mvm); 1741 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); 1742 } 1743 1744 static void iwl_mvm_unblock_esr_tmp_non_bss(struct wiphy *wiphy, 1745 struct wiphy_work *wk) 1746 { 1747 struct iwl_mvm_vif *mvmvif = 1748 container_of(wk, struct iwl_mvm_vif, 1749 unblock_esr_tmp_non_bss_wk.work); 1750 struct iwl_mvm *mvm = mvmvif->mvm; 1751 struct ieee80211_vif *vif = 1752 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1753 1754 mutex_lock(&mvm->mutex); 1755 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TMP_NON_BSS); 1756 mutex_unlock(&mvm->mutex); 1757 } 1758 1759 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1760 { 1761 lockdep_assert_held(&mvm->mutex); 1762 1763 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1764 return; 1765 1766 INIT_DELAYED_WORK(&mvmvif->csa_work, 1767 iwl_mvm_channel_switch_disconnect_wk); 1768 1769 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk, 1770 iwl_mvm_prevent_esr_done_wk); 1771 1772 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, 1773 iwl_mvm_mlo_int_scan_wk); 1774 1775 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, 1776 iwl_mvm_unblock_esr_tpt); 1777 1778 wiphy_delayed_work_init(&mvmvif->unblock_esr_tmp_non_bss_wk, 1779 iwl_mvm_unblock_esr_tmp_non_bss); 1780 } 1781 1782 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1783 struct ieee80211_vif *vif) 1784 { 1785 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1786 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1787 int ret; 1788 int i; 1789 1790 mutex_lock(&mvm->mutex); 1791 1792 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1793 1794 mvmvif->mvm = mvm; 1795 1796 /* the first link always points to the default one */ 1797 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1798 mvmvif->deflink.active = 0; 1799 mvmvif->link[0] = &mvmvif->deflink; 1800 1801 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1802 if (ret) 1803 goto out; 1804 1805 /* 1806 * Not much to do here. The stack will not allow interface 1807 * types or combinations that we didn't advertise, so we 1808 * don't really have to check the types. 1809 */ 1810 1811 /* make sure that beacon statistics don't go backwards with FW reset */ 1812 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1813 for_each_mvm_vif_valid_link(mvmvif, i) 1814 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1815 mvmvif->link[i]->beacon_stats.num_beacons; 1816 1817 /* Allocate resources for the MAC context, and add it to the fw */ 1818 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1819 if (ret) 1820 goto out; 1821 1822 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1823 1824 /* Currently not much to do for NAN */ 1825 if (vif->type == NL80211_IFTYPE_NAN) { 1826 ret = 0; 1827 goto out; 1828 } 1829 1830 /* 1831 * The AP binding flow can be done only after the beacon 1832 * template is configured (which happens only in the mac80211 1833 * start_ap() flow), and adding the broadcast station can happen 1834 * only after the binding. 1835 * In addition, since modifying the MAC before adding a bcast 1836 * station is not allowed by the FW, delay the adding of MAC context to 1837 * the point where we can also add the bcast station. 1838 * In short: there's not much we can do at this point, other than 1839 * allocating resources :) 1840 */ 1841 if (vif->type == NL80211_IFTYPE_AP || 1842 vif->type == NL80211_IFTYPE_ADHOC) { 1843 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1844 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1845 ret = 0; 1846 goto out; 1847 } 1848 1849 mvmvif->features |= hw->netdev_features; 1850 1851 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1852 if (ret) 1853 goto out_unlock; 1854 1855 ret = iwl_mvm_power_update_mac(mvm); 1856 if (ret) 1857 goto out_remove_mac; 1858 1859 /* beacon filtering */ 1860 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1861 if (ret) 1862 goto out_remove_mac; 1863 1864 if (!mvm->bf_allowed_vif && 1865 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1866 mvm->bf_allowed_vif = mvmvif; 1867 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1868 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1869 } 1870 1871 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1872 mvm->p2p_device_vif = vif; 1873 1874 iwl_mvm_tcm_add_vif(mvm, vif); 1875 1876 if (vif->type == NL80211_IFTYPE_MONITOR) { 1877 mvm->monitor_on = true; 1878 mvm->monitor_p80 = 1879 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1880 } 1881 1882 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1883 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1884 1885 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1886 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1887 !mvm->csme_vif && mvm->mei_registered) { 1888 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1889 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1890 mvm->csme_vif = vif; 1891 } 1892 1893 out: 1894 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1895 vif->type == NL80211_IFTYPE_ADHOC)) 1896 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1897 1898 goto out_unlock; 1899 1900 out_remove_mac: 1901 mvmvif->deflink.phy_ctxt = NULL; 1902 iwl_mvm_mac_ctxt_remove(mvm, vif); 1903 out_unlock: 1904 mutex_unlock(&mvm->mutex); 1905 1906 return ret; 1907 } 1908 1909 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1910 struct ieee80211_vif *vif) 1911 { 1912 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1913 1914 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1915 /* 1916 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1917 * We assume here that all the packets sent to the OFFCHANNEL 1918 * queue are sent in ROC session. 1919 */ 1920 flush_work(&mvm->roc_done_wk); 1921 } 1922 1923 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1924 &mvmvif->prevent_esr_done_wk); 1925 1926 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1927 &mvmvif->mlo_int_scan_wk); 1928 1929 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 1930 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1931 &mvmvif->unblock_esr_tmp_non_bss_wk); 1932 1933 cancel_delayed_work_sync(&mvmvif->csa_work); 1934 } 1935 1936 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1937 struct ieee80211_vif *vif) 1938 { 1939 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1940 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1941 struct iwl_probe_resp_data *probe_data; 1942 1943 iwl_mvm_prepare_mac_removal(mvm, vif); 1944 1945 if (!(vif->type == NL80211_IFTYPE_AP || 1946 vif->type == NL80211_IFTYPE_ADHOC)) 1947 iwl_mvm_tcm_rm_vif(mvm, vif); 1948 1949 mutex_lock(&mvm->mutex); 1950 1951 if (vif == mvm->csme_vif) { 1952 iwl_mei_set_netdev(NULL); 1953 mvm->csme_vif = NULL; 1954 } 1955 1956 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1957 lockdep_is_held(&mvm->mutex)); 1958 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1959 if (probe_data) 1960 kfree_rcu(probe_data, rcu_head); 1961 1962 if (mvm->bf_allowed_vif == mvmvif) { 1963 mvm->bf_allowed_vif = NULL; 1964 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1965 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1966 } 1967 1968 if (vif->bss_conf.ftm_responder) 1969 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1970 1971 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1972 1973 /* 1974 * For AP/GO interface, the tear down of the resources allocated to the 1975 * interface is be handled as part of the stop_ap flow. 1976 */ 1977 if (vif->type == NL80211_IFTYPE_AP || 1978 vif->type == NL80211_IFTYPE_ADHOC) { 1979 #ifdef CONFIG_NL80211_TESTMODE 1980 if (vif == mvm->noa_vif) { 1981 mvm->noa_vif = NULL; 1982 mvm->noa_duration = 0; 1983 } 1984 #endif 1985 goto out; 1986 } 1987 1988 iwl_mvm_power_update_mac(mvm); 1989 1990 /* Before the interface removal, mac80211 would cancel the ROC, and the 1991 * ROC worker would be scheduled if needed. The worker would be flushed 1992 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1993 * binding etc. so nothing needs to be done here. 1994 */ 1995 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1996 if (mvmvif->deflink.phy_ctxt) { 1997 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 1998 mvmvif->deflink.phy_ctxt = NULL; 1999 } 2000 mvm->p2p_device_vif = NULL; 2001 } 2002 2003 iwl_mvm_mac_ctxt_remove(mvm, vif); 2004 2005 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 2006 2007 if (vif->type == NL80211_IFTYPE_MONITOR) 2008 mvm->monitor_on = false; 2009 2010 out: 2011 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 2012 if (vif->type == NL80211_IFTYPE_AP || 2013 vif->type == NL80211_IFTYPE_ADHOC) { 2014 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 2015 iwl_mvm_dealloc_bcast_sta(mvm, vif); 2016 } 2017 2018 mutex_unlock(&mvm->mutex); 2019 } 2020 2021 struct iwl_mvm_mc_iter_data { 2022 struct iwl_mvm *mvm; 2023 int port_id; 2024 }; 2025 2026 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 2027 struct ieee80211_vif *vif) 2028 { 2029 struct iwl_mvm_mc_iter_data *data = _data; 2030 struct iwl_mvm *mvm = data->mvm; 2031 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 2032 struct iwl_host_cmd hcmd = { 2033 .id = MCAST_FILTER_CMD, 2034 .flags = CMD_ASYNC, 2035 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 2036 }; 2037 int ret, len; 2038 2039 /* if we don't have free ports, mcast frames will be dropped */ 2040 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 2041 return; 2042 2043 if (vif->type != NL80211_IFTYPE_STATION || 2044 !vif->cfg.assoc) 2045 return; 2046 2047 cmd->port_id = data->port_id++; 2048 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 2049 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 2050 2051 hcmd.len[0] = len; 2052 hcmd.data[0] = cmd; 2053 2054 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2055 if (ret) 2056 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 2057 } 2058 2059 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 2060 { 2061 struct iwl_mvm_mc_iter_data iter_data = { 2062 .mvm = mvm, 2063 }; 2064 int ret; 2065 2066 lockdep_assert_held(&mvm->mutex); 2067 2068 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 2069 return; 2070 2071 ieee80211_iterate_active_interfaces_atomic( 2072 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2073 iwl_mvm_mc_iface_iterator, &iter_data); 2074 2075 /* 2076 * Send a (synchronous) ech command so that we wait for the 2077 * multiple asynchronous MCAST_FILTER_CMD commands sent by 2078 * the interface iterator. Otherwise, we might get here over 2079 * and over again (by userspace just sending a lot of these) 2080 * and the CPU can send them faster than the firmware can 2081 * process them. 2082 * Note that the CPU is still faster - but with this we'll 2083 * actually send fewer commands overall because the CPU will 2084 * not schedule the work in mac80211 as frequently if it's 2085 * still running when rescheduled (possibly multiple times). 2086 */ 2087 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2088 if (ret) 2089 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2090 } 2091 2092 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2093 struct netdev_hw_addr_list *mc_list) 2094 { 2095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2096 struct iwl_mcast_filter_cmd *cmd; 2097 struct netdev_hw_addr *addr; 2098 int addr_count; 2099 bool pass_all; 2100 int len; 2101 2102 addr_count = netdev_hw_addr_list_count(mc_list); 2103 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2104 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2105 if (pass_all) 2106 addr_count = 0; 2107 2108 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2109 cmd = kzalloc(len, GFP_ATOMIC); 2110 if (!cmd) 2111 return 0; 2112 2113 if (pass_all) { 2114 cmd->pass_all = 1; 2115 return (u64)(unsigned long)cmd; 2116 } 2117 2118 netdev_hw_addr_list_for_each(addr, mc_list) { 2119 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2120 cmd->count, addr->addr); 2121 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2122 addr->addr, ETH_ALEN); 2123 cmd->count++; 2124 } 2125 2126 return (u64)(unsigned long)cmd; 2127 } 2128 2129 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2130 unsigned int changed_flags, 2131 unsigned int *total_flags, u64 multicast) 2132 { 2133 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2134 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2135 2136 guard(mvm)(mvm); 2137 2138 /* replace previous configuration */ 2139 kfree(mvm->mcast_filter_cmd); 2140 mvm->mcast_filter_cmd = cmd; 2141 2142 if (!cmd) 2143 goto out; 2144 2145 if (changed_flags & FIF_ALLMULTI) 2146 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2147 2148 if (cmd->pass_all) 2149 cmd->count = 0; 2150 2151 iwl_mvm_recalc_multicast(mvm); 2152 out: 2153 *total_flags = 0; 2154 } 2155 2156 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2157 struct ieee80211_vif *vif, 2158 unsigned int filter_flags, 2159 unsigned int changed_flags) 2160 { 2161 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2162 2163 /* We support only filter for probe requests */ 2164 if (!(changed_flags & FIF_PROBE_REQ)) 2165 return; 2166 2167 /* Supported only for p2p client interfaces */ 2168 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2169 !vif->p2p) 2170 return; 2171 2172 guard(mvm)(mvm); 2173 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2174 } 2175 2176 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2177 { 2178 struct iwl_mu_group_mgmt_cmd cmd = {}; 2179 2180 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2181 WLAN_MEMBERSHIP_LEN); 2182 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2183 WLAN_USER_POSITION_LEN); 2184 2185 return iwl_mvm_send_cmd_pdu(mvm, 2186 WIDE_ID(DATA_PATH_GROUP, 2187 UPDATE_MU_GROUPS_CMD), 2188 0, sizeof(cmd), &cmd); 2189 } 2190 2191 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2192 struct ieee80211_vif *vif) 2193 { 2194 if (vif->bss_conf.mu_mimo_owner) { 2195 struct iwl_mu_group_mgmt_notif *notif = _data; 2196 2197 /* 2198 * MU-MIMO Group Id action frame is little endian. We treat 2199 * the data received from firmware as if it came from the 2200 * action frame, so no conversion is needed. 2201 */ 2202 ieee80211_update_mu_groups(vif, 0, 2203 (u8 *)¬if->membership_status, 2204 (u8 *)¬if->user_position); 2205 } 2206 } 2207 2208 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2209 struct iwl_rx_cmd_buffer *rxb) 2210 { 2211 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2212 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2213 2214 ieee80211_iterate_active_interfaces_atomic( 2215 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2216 iwl_mvm_mu_mimo_iface_iterator, notif); 2217 } 2218 2219 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2220 { 2221 u8 byte_num = ppe_pos_bit / 8; 2222 u8 bit_num = ppe_pos_bit % 8; 2223 u8 residue_bits; 2224 u8 res; 2225 2226 if (bit_num <= 5) 2227 return (ppe[byte_num] >> bit_num) & 2228 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2229 2230 /* 2231 * If bit_num > 5, we have to combine bits with next byte. 2232 * Calculate how many bits we need to take from current byte (called 2233 * here "residue_bits"), and add them to bits from next byte. 2234 */ 2235 2236 residue_bits = 8 - bit_num; 2237 2238 res = (ppe[byte_num + 1] & 2239 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2240 residue_bits; 2241 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2242 2243 return res; 2244 } 2245 2246 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2247 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2248 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2249 bool inheritance) 2250 { 2251 int i; 2252 2253 /* 2254 * FW currently supports only nss == MAX_HE_SUPP_NSS 2255 * 2256 * If nss > MAX: we can ignore values we don't support 2257 * If nss < MAX: we can set zeros in other streams 2258 */ 2259 if (nss > MAX_HE_SUPP_NSS) { 2260 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2261 MAX_HE_SUPP_NSS); 2262 nss = MAX_HE_SUPP_NSS; 2263 } 2264 2265 for (i = 0; i < nss; i++) { 2266 u8 ru_index_tmp = ru_index_bitmap << 1; 2267 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2268 u8 bw; 2269 2270 for (bw = 0; 2271 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2272 bw++) { 2273 ru_index_tmp >>= 1; 2274 2275 /* 2276 * According to the 11be spec, if for a specific BW the PPE Thresholds 2277 * isn't present - it should inherit the thresholds from the last 2278 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2279 * this inheritance - continue in this case 2280 */ 2281 if (!(ru_index_tmp & 1)) { 2282 if (inheritance) 2283 goto set_thresholds; 2284 else 2285 continue; 2286 } 2287 2288 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2289 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2290 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2291 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2292 2293 set_thresholds: 2294 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2295 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2296 } 2297 } 2298 } 2299 2300 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2301 struct ieee80211_link_sta *link_sta, 2302 struct iwl_he_pkt_ext_v2 *pkt_ext, 2303 bool inheritance) 2304 { 2305 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2306 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2307 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2308 u8 ru_index_bitmap = 2309 u8_get_bits(*ppe, 2310 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2311 /* Starting after PPE header */ 2312 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2313 2314 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2315 inheritance); 2316 } 2317 2318 static int 2319 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2320 u8 nominal_padding) 2321 { 2322 int low_th = -1; 2323 int high_th = -1; 2324 int i; 2325 2326 /* all the macros are the same for EHT and HE */ 2327 switch (nominal_padding) { 2328 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2329 low_th = IWL_HE_PKT_EXT_NONE; 2330 high_th = IWL_HE_PKT_EXT_NONE; 2331 break; 2332 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2333 low_th = IWL_HE_PKT_EXT_BPSK; 2334 high_th = IWL_HE_PKT_EXT_NONE; 2335 break; 2336 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2337 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2338 low_th = IWL_HE_PKT_EXT_NONE; 2339 high_th = IWL_HE_PKT_EXT_BPSK; 2340 break; 2341 } 2342 2343 if (low_th < 0 || high_th < 0) 2344 return -EINVAL; 2345 2346 /* Set the PPE thresholds accordingly */ 2347 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2348 u8 bw; 2349 2350 for (bw = 0; 2351 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2352 bw++) { 2353 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2354 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2355 } 2356 } 2357 2358 return 0; 2359 } 2360 2361 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2362 u8 nominal_padding) 2363 { 2364 int i; 2365 2366 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2367 u8 bw; 2368 2369 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2370 bw++) { 2371 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2372 2373 if (nominal_padding > 2374 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2375 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2376 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2377 else if (nominal_padding == 2378 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2379 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2380 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2381 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2382 } 2383 } 2384 } 2385 2386 /* Set the pkt_ext field according to PPE Thresholds element */ 2387 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2388 struct ieee80211_link_sta *link_sta, 2389 struct iwl_he_pkt_ext_v2 *pkt_ext) 2390 { 2391 u8 nominal_padding; 2392 int i, ret = 0; 2393 2394 if (WARN_ON(!link_sta)) 2395 return -EINVAL; 2396 2397 /* Initialize the PPE thresholds to "None" (7), as described in Table 2398 * 9-262ac of 80211.ax/D3.0. 2399 */ 2400 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2401 sizeof(struct iwl_he_pkt_ext_v2)); 2402 2403 if (link_sta->eht_cap.has_eht) { 2404 nominal_padding = 2405 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2406 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2407 2408 /* If PPE Thresholds exists, parse them into a FW-familiar 2409 * format. 2410 */ 2411 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2412 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2413 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2414 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2415 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2416 u8 ru_index_bitmap = 2417 u16_get_bits(*ppe, 2418 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2419 /* Starting after PPE header */ 2420 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2421 2422 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2423 ppe, ppe_pos_bit, true); 2424 /* EHT PPE Thresholds doesn't exist - set the API according to 2425 * HE PPE Tresholds 2426 */ 2427 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2428 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2429 /* Even though HE Capabilities IE doesn't contain PPE 2430 * Thresholds for BW 320Mhz, thresholds for this BW will 2431 * be filled in with the same values as 160Mhz, due to 2432 * the inheritance, as required. 2433 */ 2434 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2435 true); 2436 2437 /* According to the requirements, for MCSs 12-13 the 2438 * maximum value between HE PPE Threshold and Common 2439 * Nominal Packet Padding needs to be taken 2440 */ 2441 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2442 2443 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2444 * take the Thresholds from Common Nominal Packet Padding field 2445 */ 2446 } else { 2447 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2448 nominal_padding); 2449 } 2450 } else if (link_sta->he_cap.has_he) { 2451 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2452 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2453 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2454 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2455 false); 2456 /* PPE Thresholds doesn't exist - set the API PPE values 2457 * according to Common Nominal Packet Padding field. 2458 */ 2459 } else { 2460 nominal_padding = 2461 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2462 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2463 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2464 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2465 nominal_padding); 2466 } 2467 } 2468 2469 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2470 int bw; 2471 2472 for (bw = 0; 2473 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2474 bw++) { 2475 u8 *qam_th = 2476 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2477 2478 IWL_DEBUG_HT(mvm, 2479 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2480 i, bw, qam_th[0], qam_th[1]); 2481 } 2482 } 2483 return ret; 2484 } 2485 2486 /* 2487 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2488 * is enabled or not 2489 */ 2490 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2491 const struct iwl_mvm_vif_link_info *link_info, 2492 struct iwl_he_backoff_conf *trig_based_txf) 2493 { 2494 int i; 2495 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2496 bool mu_edca_enabled = true; 2497 2498 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2499 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2500 &link_info->queue_params[i].mu_edca_param_rec; 2501 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2502 2503 if (!link_info->queue_params[i].mu_edca) { 2504 mu_edca_enabled = false; 2505 break; 2506 } 2507 2508 trig_based_txf[ac].cwmin = 2509 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2510 trig_based_txf[ac].cwmax = 2511 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2512 trig_based_txf[ac].aifsn = 2513 cpu_to_le16(mu_edca->aifsn & 0xf); 2514 trig_based_txf[ac].mu_time = 2515 cpu_to_le16(mu_edca->mu_edca_timer); 2516 } 2517 2518 return mu_edca_enabled; 2519 } 2520 2521 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2522 { 2523 const struct ieee80211_supported_band *sband; 2524 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2525 2526 /* This capability is the same for all bands, 2527 * so take it from one of them. 2528 */ 2529 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2530 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2531 2532 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2533 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2534 } 2535 2536 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2537 struct ieee80211_link_sta *link_sta) 2538 { 2539 u8 *mac_cap_info = 2540 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2541 __le32 htc_flags = 0; 2542 2543 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2544 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2545 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2546 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2547 u8 link_adap = 2548 ((mac_cap_info[2] & 2549 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2550 (mac_cap_info[1] & 2551 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2552 2553 if (link_adap == 2) 2554 htc_flags |= 2555 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2556 else if (link_adap == 3) 2557 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2558 } 2559 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2560 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2561 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2562 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2563 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2564 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2565 2566 return htc_flags; 2567 } 2568 2569 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2570 struct ieee80211_vif *vif, u8 sta_id) 2571 { 2572 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2573 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2574 .sta_id = sta_id, 2575 .tid_limit = IWL_MAX_TID_COUNT, 2576 .bss_color = vif->bss_conf.he_bss_color.color, 2577 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2578 .frame_time_rts_th = 2579 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2580 }; 2581 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2582 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2583 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2584 int size; 2585 struct ieee80211_sta *sta; 2586 u32 flags; 2587 int i; 2588 void *cmd; 2589 2590 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2591 ver = 1; 2592 2593 switch (ver) { 2594 case 1: 2595 /* same layout as v2 except some data at the end */ 2596 cmd = &sta_ctxt_cmd_v2; 2597 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2598 break; 2599 case 2: 2600 cmd = &sta_ctxt_cmd_v2; 2601 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2602 break; 2603 case 3: 2604 cmd = &sta_ctxt_cmd; 2605 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2606 break; 2607 default: 2608 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2609 return; 2610 } 2611 2612 rcu_read_lock(); 2613 2614 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2615 if (IS_ERR_OR_NULL(sta)) { 2616 rcu_read_unlock(); 2617 WARN(1, "Can't find STA to configure HE\n"); 2618 return; 2619 } 2620 2621 if (!sta->deflink.he_cap.has_he) { 2622 rcu_read_unlock(); 2623 return; 2624 } 2625 2626 flags = 0; 2627 2628 /* Block 26-tone RU OFDMA transmissions */ 2629 if (mvmvif->deflink.he_ru_2mhz_block) 2630 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2631 2632 /* HTC flags */ 2633 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2634 2635 /* PPE Thresholds */ 2636 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2637 flags |= STA_CTXT_HE_PACKET_EXT; 2638 2639 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2640 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2641 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2642 2643 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2644 IEEE80211_HE_MAC_CAP2_ACK_EN) 2645 flags |= STA_CTXT_HE_ACK_ENABLED; 2646 2647 rcu_read_unlock(); 2648 2649 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2650 &sta_ctxt_cmd.trig_based_txf[0])) 2651 flags |= STA_CTXT_HE_MU_EDCA_CW; 2652 2653 if (vif->bss_conf.uora_exists) { 2654 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2655 2656 sta_ctxt_cmd.rand_alloc_ecwmin = 2657 vif->bss_conf.uora_ocw_range & 0x7; 2658 sta_ctxt_cmd.rand_alloc_ecwmax = 2659 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2660 } 2661 2662 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2663 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2664 2665 if (vif->bss_conf.nontransmitted) { 2666 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2667 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2668 vif->bss_conf.transmitter_bssid); 2669 sta_ctxt_cmd.max_bssid_indicator = 2670 vif->bss_conf.bssid_indicator; 2671 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2672 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2673 sta_ctxt_cmd.profile_periodicity = 2674 vif->bss_conf.profile_periodicity; 2675 } 2676 2677 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2678 2679 if (ver < 3) { 2680 /* fields before pkt_ext */ 2681 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2682 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2683 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2684 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2685 2686 /* pkt_ext */ 2687 for (i = 0; 2688 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2689 i++) { 2690 u8 bw; 2691 2692 for (bw = 0; 2693 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2694 bw++) { 2695 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2696 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2697 2698 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2699 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2700 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2701 } 2702 } 2703 2704 /* fields after pkt_ext */ 2705 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2706 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2707 sizeof(sta_ctxt_cmd_v2) - 2708 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2709 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2710 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2711 (u8 *)&sta_ctxt_cmd + 2712 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2713 sizeof(sta_ctxt_cmd) - 2714 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2715 sta_ctxt_cmd_v2.reserved3 = 0; 2716 } 2717 2718 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2719 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2720 } 2721 2722 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2723 u32 duration_override, unsigned int link_id) 2724 { 2725 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2726 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2727 2728 if (duration_override > duration) 2729 duration = duration_override; 2730 2731 /* Try really hard to protect the session and hear a beacon 2732 * The new session protection command allows us to protect the 2733 * session for a much longer time since the firmware will internally 2734 * create two events: a 300TU one with a very high priority that 2735 * won't be fragmented which should be enough for 99% of the cases, 2736 * and another one (which we configure here to be 900TU long) which 2737 * will have a slightly lower priority, but more importantly, can be 2738 * fragmented so that it'll allow other activities to run. 2739 */ 2740 if (fw_has_capa(&mvm->fw->ucode_capa, 2741 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2742 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2743 min_duration, false, 2744 link_id); 2745 else 2746 iwl_mvm_protect_session(mvm, vif, duration, 2747 min_duration, 500, false); 2748 } 2749 2750 /* Handle association common part to MLD and non-MLD modes */ 2751 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2752 struct ieee80211_vif *vif, 2753 u64 changes) 2754 { 2755 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2756 int ret; 2757 int link_id; 2758 2759 /* The firmware tracks the MU-MIMO group on its own. 2760 * However, on HW restart we should restore this data. 2761 */ 2762 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2763 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2764 ret = iwl_mvm_update_mu_groups(mvm, vif); 2765 if (ret) 2766 IWL_ERR(mvm, 2767 "failed to update VHT MU_MIMO groups\n"); 2768 } 2769 2770 iwl_mvm_recalc_multicast(mvm); 2771 2772 /* reset rssi values */ 2773 for_each_mvm_vif_valid_link(mvmvif, link_id) 2774 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2775 2776 iwl_mvm_bt_coex_vif_change(mvm); 2777 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2778 IEEE80211_SMPS_AUTOMATIC); 2779 if (fw_has_capa(&mvm->fw->ucode_capa, 2780 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2781 iwl_mvm_config_scan(mvm); 2782 } 2783 2784 /* Execute the common part for MLD and non-MLD modes */ 2785 void 2786 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2787 struct ieee80211_vif *vif, 2788 struct ieee80211_bss_conf *link_conf, 2789 u64 changes) 2790 { 2791 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2792 int ret; 2793 2794 if (changes & BSS_CHANGED_BEACON_INFO) { 2795 /* We received a beacon from the associated AP so 2796 * remove the session protection. 2797 */ 2798 iwl_mvm_stop_session_protection(mvm, vif); 2799 2800 iwl_mvm_sf_update(mvm, vif, false); 2801 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2802 } 2803 2804 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2805 /* Send power command on every beacon change, 2806 * because we may have not enabled beacon abort yet. 2807 */ 2808 BSS_CHANGED_BEACON_INFO)) { 2809 ret = iwl_mvm_power_update_mac(mvm); 2810 if (ret) 2811 IWL_ERR(mvm, "failed to update power mode\n"); 2812 } 2813 2814 if (changes & BSS_CHANGED_CQM) { 2815 struct iwl_mvm_vif_link_info *link_info = 2816 mvmvif->link[link_conf->link_id]; 2817 2818 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2819 if (link_info) 2820 link_info->bf_data.last_cqm_event = 0; 2821 2822 if (mvmvif->bf_enabled) { 2823 /* FIXME: need to update per link when FW API will 2824 * support it 2825 */ 2826 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2827 if (ret) 2828 IWL_ERR(mvm, 2829 "failed to update CQM thresholds\n"); 2830 } 2831 } 2832 2833 if (changes & BSS_CHANGED_BANDWIDTH) 2834 iwl_mvm_update_link_smps(vif, link_conf); 2835 2836 if (changes & BSS_CHANGED_TPE) { 2837 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2838 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2839 link_conf, 2840 false); 2841 } 2842 } 2843 2844 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2845 struct ieee80211_vif *vif, 2846 struct ieee80211_bss_conf *bss_conf, 2847 u64 changes) 2848 { 2849 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2850 int ret; 2851 int i; 2852 2853 /* 2854 * Re-calculate the tsf id, as the leader-follower relations depend 2855 * on the beacon interval, which was not known when the station 2856 * interface was added. 2857 */ 2858 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2859 if ((vif->bss_conf.he_support && 2860 !iwlwifi_mod_params.disable_11ax)) 2861 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2862 2863 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2864 } 2865 2866 /* Update MU EDCA params */ 2867 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2868 vif->cfg.assoc && 2869 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2870 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2871 2872 /* 2873 * If we're not associated yet, take the (new) BSSID before associating 2874 * so the firmware knows. If we're already associated, then use the old 2875 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2876 * branch for disassociation below. 2877 */ 2878 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2879 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2880 2881 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2882 if (ret) 2883 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2884 2885 /* after sending it once, adopt mac80211 data */ 2886 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2887 mvmvif->associated = vif->cfg.assoc; 2888 2889 if (changes & BSS_CHANGED_ASSOC) { 2890 if (vif->cfg.assoc) { 2891 mvmvif->session_prot_connection_loss = false; 2892 2893 /* clear statistics to get clean beacon counter */ 2894 iwl_mvm_request_statistics(mvm, true); 2895 for_each_mvm_vif_valid_link(mvmvif, i) 2896 memset(&mvmvif->link[i]->beacon_stats, 0, 2897 sizeof(mvmvif->link[i]->beacon_stats)); 2898 2899 /* add quota for this interface */ 2900 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2901 if (ret) { 2902 IWL_ERR(mvm, "failed to update quotas\n"); 2903 return; 2904 } 2905 2906 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2907 &mvm->status) && 2908 !fw_has_capa(&mvm->fw->ucode_capa, 2909 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2910 /* 2911 * If we're restarting then the firmware will 2912 * obviously have lost synchronisation with 2913 * the AP. It will attempt to synchronise by 2914 * itself, but we can make it more reliable by 2915 * scheduling a session protection time event. 2916 * 2917 * The firmware needs to receive a beacon to 2918 * catch up with synchronisation, use 110% of 2919 * the beacon interval. 2920 * 2921 * Set a large maximum delay to allow for more 2922 * than a single interface. 2923 * 2924 * For new firmware versions, rely on the 2925 * firmware. This is relevant for DCM scenarios 2926 * only anyway. 2927 */ 2928 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2929 iwl_mvm_protect_session(mvm, vif, dur, dur, 2930 5 * dur, false); 2931 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2932 &mvm->status) && 2933 !vif->bss_conf.dtim_period) { 2934 /* 2935 * If we're not restarting and still haven't 2936 * heard a beacon (dtim period unknown) then 2937 * make sure we still have enough minimum time 2938 * remaining in the time event, since the auth 2939 * might actually have taken quite a while 2940 * (especially for SAE) and so the remaining 2941 * time could be small without us having heard 2942 * a beacon yet. 2943 */ 2944 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2945 } 2946 2947 iwl_mvm_sf_update(mvm, vif, false); 2948 iwl_mvm_power_vif_assoc(mvm, vif); 2949 if (vif->p2p) { 2950 iwl_mvm_update_smps(mvm, vif, 2951 IWL_MVM_SMPS_REQ_PROT, 2952 IEEE80211_SMPS_DYNAMIC, 0); 2953 } 2954 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) { 2955 iwl_mvm_mei_host_disassociated(mvm); 2956 /* 2957 * If update fails - SF might be running in associated 2958 * mode while disassociated - which is forbidden. 2959 */ 2960 ret = iwl_mvm_sf_update(mvm, vif, false); 2961 WARN_ONCE(ret && 2962 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2963 &mvm->status), 2964 "Failed to update SF upon disassociation\n"); 2965 2966 /* 2967 * If we get an assert during the connection (after the 2968 * station has been added, but before the vif is set 2969 * to associated), mac80211 will re-add the station and 2970 * then configure the vif. Since the vif is not 2971 * associated, we would remove the station here and 2972 * this would fail the recovery. 2973 */ 2974 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2975 &mvm->status)) { 2976 /* first remove remaining keys */ 2977 iwl_mvm_sec_key_remove_ap(mvm, vif, 2978 &mvmvif->deflink, 0); 2979 2980 /* 2981 * Remove AP station now that 2982 * the MAC is unassoc 2983 */ 2984 ret = iwl_mvm_rm_sta_id(mvm, vif, 2985 mvmvif->deflink.ap_sta_id); 2986 if (ret) 2987 IWL_ERR(mvm, 2988 "failed to remove AP station\n"); 2989 2990 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA; 2991 } 2992 2993 /* remove quota for this interface */ 2994 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2995 if (ret) 2996 IWL_ERR(mvm, "failed to update quotas\n"); 2997 2998 /* this will take the cleared BSSID from bss_conf */ 2999 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3000 if (ret) 3001 IWL_ERR(mvm, 3002 "failed to update MAC %pM (clear after unassoc)\n", 3003 vif->addr); 3004 } 3005 3006 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 3007 } 3008 3009 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 3010 changes); 3011 } 3012 3013 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 3014 struct ieee80211_vif *vif, 3015 int *ret) 3016 { 3017 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3018 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3019 int i; 3020 3021 lockdep_assert_held(&mvm->mutex); 3022 3023 mvmvif->ap_assoc_sta_count = 0; 3024 3025 /* must be set before quota calculations */ 3026 mvmvif->ap_ibss_active = true; 3027 3028 /* send all the early keys to the device now */ 3029 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3030 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 3031 3032 if (!key) 3033 continue; 3034 3035 mvmvif->ap_early_keys[i] = NULL; 3036 3037 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 3038 if (*ret) 3039 return true; 3040 } 3041 3042 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3043 iwl_mvm_vif_set_low_latency(mvmvif, true, 3044 LOW_LATENCY_VIF_TYPE); 3045 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 3046 } 3047 3048 /* power updated needs to be done before quotas */ 3049 iwl_mvm_power_update_mac(mvm); 3050 3051 return false; 3052 } 3053 3054 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 3055 struct ieee80211_vif *vif, 3056 struct ieee80211_bss_conf *link_conf) 3057 { 3058 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3059 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3060 int ret; 3061 3062 mutex_lock(&mvm->mutex); 3063 3064 /* 3065 * Re-calculate the tsf id, as the leader-follower relations depend on 3066 * the beacon interval, which was not known when the AP interface 3067 * was added. 3068 */ 3069 if (vif->type == NL80211_IFTYPE_AP) 3070 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 3071 3072 /* For older devices need to send beacon template before adding mac 3073 * context. For the newer, the beacon is a resource that belongs to a 3074 * MAC, so need to send beacon template after adding the mac. 3075 */ 3076 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 3077 /* Add the mac context */ 3078 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3079 if (ret) 3080 goto out_unlock; 3081 3082 /* Send the beacon template */ 3083 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3084 if (ret) 3085 goto out_unlock; 3086 } else { 3087 /* Send the beacon template */ 3088 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3089 if (ret) 3090 goto out_unlock; 3091 3092 /* Add the mac context */ 3093 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3094 if (ret) 3095 goto out_unlock; 3096 } 3097 3098 /* Perform the binding */ 3099 ret = iwl_mvm_binding_add_vif(mvm, vif); 3100 if (ret) 3101 goto out_remove; 3102 3103 /* 3104 * This is not very nice, but the simplest: 3105 * For older FWs adding the mcast sta before the bcast station may 3106 * cause assert 0x2b00. 3107 * This is fixed in later FW so make the order of removal depend on 3108 * the TLV 3109 */ 3110 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3111 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3112 if (ret) 3113 goto out_unbind; 3114 /* 3115 * Send the bcast station. At this stage the TBTT and DTIM time 3116 * events are added and applied to the scheduler 3117 */ 3118 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3119 if (ret) { 3120 iwl_mvm_rm_mcast_sta(mvm, vif); 3121 goto out_unbind; 3122 } 3123 } else { 3124 /* 3125 * Send the bcast station. At this stage the TBTT and DTIM time 3126 * events are added and applied to the scheduler 3127 */ 3128 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3129 if (ret) 3130 goto out_unbind; 3131 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3132 if (ret) { 3133 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3134 goto out_unbind; 3135 } 3136 } 3137 3138 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3139 goto out_failed; 3140 3141 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3142 if (ret) 3143 goto out_failed; 3144 3145 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3146 if (vif->p2p && mvm->p2p_device_vif) 3147 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3148 3149 iwl_mvm_bt_coex_vif_change(mvm); 3150 3151 /* we don't support TDLS during DCM */ 3152 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3153 iwl_mvm_teardown_tdls_peers(mvm); 3154 3155 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3156 3157 goto out_unlock; 3158 3159 out_failed: 3160 iwl_mvm_power_update_mac(mvm); 3161 mvmvif->ap_ibss_active = false; 3162 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3163 iwl_mvm_rm_mcast_sta(mvm, vif); 3164 out_unbind: 3165 iwl_mvm_binding_remove_vif(mvm, vif); 3166 out_remove: 3167 iwl_mvm_mac_ctxt_remove(mvm, vif); 3168 out_unlock: 3169 mutex_unlock(&mvm->mutex); 3170 return ret; 3171 } 3172 3173 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3174 struct ieee80211_vif *vif, 3175 struct ieee80211_bss_conf *link_conf) 3176 { 3177 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3178 } 3179 3180 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3181 struct ieee80211_vif *vif) 3182 { 3183 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3184 } 3185 3186 /* Common part for MLD and non-MLD ops */ 3187 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3188 struct ieee80211_vif *vif) 3189 { 3190 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3191 3192 lockdep_assert_held(&mvm->mutex); 3193 3194 iwl_mvm_prepare_mac_removal(mvm, vif); 3195 3196 /* Handle AP stop while in CSA */ 3197 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3198 iwl_mvm_remove_time_event(mvm, mvmvif, 3199 &mvmvif->time_event_data); 3200 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3201 mvmvif->csa_countdown = false; 3202 } 3203 3204 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3205 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3206 mvm->csa_tx_block_bcn_timeout = 0; 3207 } 3208 3209 mvmvif->ap_ibss_active = false; 3210 mvm->ap_last_beacon_gp2 = 0; 3211 3212 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3213 iwl_mvm_vif_set_low_latency(mvmvif, false, 3214 LOW_LATENCY_VIF_TYPE); 3215 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3216 } 3217 3218 iwl_mvm_bt_coex_vif_change(mvm); 3219 } 3220 3221 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3222 struct ieee80211_vif *vif, 3223 struct ieee80211_bss_conf *link_conf) 3224 { 3225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3226 3227 guard(mvm)(mvm); 3228 3229 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3230 3231 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3232 if (vif->p2p && mvm->p2p_device_vif) 3233 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3234 3235 iwl_mvm_update_quotas(mvm, false, NULL); 3236 3237 iwl_mvm_ftm_responder_clear(mvm, vif); 3238 3239 /* 3240 * This is not very nice, but the simplest: 3241 * For older FWs removing the mcast sta before the bcast station may 3242 * cause assert 0x2b00. 3243 * This is fixed in later FW (which will stop beaconing when removing 3244 * bcast station). 3245 * So make the order of removal depend on the TLV 3246 */ 3247 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3248 iwl_mvm_rm_mcast_sta(mvm, vif); 3249 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3250 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3251 iwl_mvm_rm_mcast_sta(mvm, vif); 3252 iwl_mvm_binding_remove_vif(mvm, vif); 3253 3254 iwl_mvm_power_update_mac(mvm); 3255 3256 iwl_mvm_mac_ctxt_remove(mvm, vif); 3257 } 3258 3259 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3260 struct ieee80211_vif *vif, 3261 struct ieee80211_bss_conf *link_conf) 3262 { 3263 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3264 } 3265 3266 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3267 struct ieee80211_vif *vif) 3268 { 3269 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3270 } 3271 3272 static void 3273 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3274 struct ieee80211_vif *vif, 3275 struct ieee80211_bss_conf *bss_conf, 3276 u64 changes) 3277 { 3278 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3279 3280 /* Changes will be applied when the AP/IBSS is started */ 3281 if (!mvmvif->ap_ibss_active) 3282 return; 3283 3284 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3285 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3286 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3287 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3288 3289 /* Need to send a new beacon template to the FW */ 3290 if (changes & BSS_CHANGED_BEACON && 3291 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3292 IWL_WARN(mvm, "Failed updating beacon data\n"); 3293 3294 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3295 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3296 3297 if (ret) 3298 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3299 ret); 3300 } 3301 3302 } 3303 3304 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3305 struct ieee80211_vif *vif, 3306 struct ieee80211_bss_conf *bss_conf, 3307 u64 changes) 3308 { 3309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3310 3311 guard(mvm)(mvm); 3312 3313 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3314 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3315 3316 switch (vif->type) { 3317 case NL80211_IFTYPE_STATION: 3318 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3319 break; 3320 case NL80211_IFTYPE_AP: 3321 case NL80211_IFTYPE_ADHOC: 3322 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3323 break; 3324 case NL80211_IFTYPE_MONITOR: 3325 if (changes & BSS_CHANGED_MU_GROUPS) 3326 iwl_mvm_update_mu_groups(mvm, vif); 3327 break; 3328 default: 3329 /* shouldn't happen */ 3330 WARN_ON_ONCE(1); 3331 } 3332 3333 if (changes & BSS_CHANGED_TXPOWER) { 3334 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3335 bss_conf->txpower); 3336 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower); 3337 } 3338 } 3339 3340 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3341 struct ieee80211_scan_request *hw_req) 3342 { 3343 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3344 3345 if (hw_req->req.n_channels == 0 || 3346 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3347 return -EINVAL; 3348 3349 guard(mvm)(mvm); 3350 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3351 } 3352 3353 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3354 struct ieee80211_vif *vif) 3355 { 3356 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3357 3358 guard(mvm)(mvm); 3359 3360 /* Due to a race condition, it's possible that mac80211 asks 3361 * us to stop a hw_scan when it's already stopped. This can 3362 * happen, for instance, if we stopped the scan ourselves, 3363 * called ieee80211_scan_completed() and the userspace called 3364 * cancel scan scan before ieee80211_scan_work() could run. 3365 * To handle that, simply return if the scan is not running. 3366 */ 3367 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3368 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3369 } 3370 3371 void 3372 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3373 struct ieee80211_sta *sta, u16 tids, 3374 int num_frames, 3375 enum ieee80211_frame_release_type reason, 3376 bool more_data) 3377 { 3378 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3379 3380 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3381 3382 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3383 tids, more_data, false); 3384 } 3385 3386 void 3387 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3388 struct ieee80211_sta *sta, u16 tids, 3389 int num_frames, 3390 enum ieee80211_frame_release_type reason, 3391 bool more_data) 3392 { 3393 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3394 3395 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3396 3397 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3398 tids, more_data, true); 3399 } 3400 3401 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3402 enum sta_notify_cmd cmd, 3403 struct ieee80211_sta *sta) 3404 { 3405 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3406 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3407 unsigned long txqs = 0, tids = 0; 3408 int tid; 3409 3410 /* 3411 * If we have TVQM then we get too high queue numbers - luckily 3412 * we really shouldn't get here with that because such hardware 3413 * should have firmware supporting buffer station offload. 3414 */ 3415 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3416 return; 3417 3418 spin_lock_bh(&mvmsta->lock); 3419 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3420 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3421 3422 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3423 continue; 3424 3425 __set_bit(tid_data->txq_id, &txqs); 3426 3427 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3428 continue; 3429 3430 __set_bit(tid, &tids); 3431 } 3432 3433 switch (cmd) { 3434 case STA_NOTIFY_SLEEP: 3435 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3436 ieee80211_sta_set_buffered(sta, tid, true); 3437 3438 if (txqs) 3439 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3440 /* 3441 * The fw updates the STA to be asleep. Tx packets on the Tx 3442 * queues to this station will not be transmitted. The fw will 3443 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3444 */ 3445 break; 3446 case STA_NOTIFY_AWAKE: 3447 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA)) 3448 break; 3449 3450 if (txqs) 3451 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3452 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3453 break; 3454 default: 3455 break; 3456 } 3457 spin_unlock_bh(&mvmsta->lock); 3458 } 3459 3460 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3461 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3462 { 3463 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3464 } 3465 3466 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3467 { 3468 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3469 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3470 struct ieee80211_sta *sta; 3471 struct iwl_mvm_sta *mvmsta; 3472 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3473 3474 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3475 return; 3476 3477 rcu_read_lock(); 3478 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3479 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3480 rcu_read_unlock(); 3481 return; 3482 } 3483 3484 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3485 3486 if (!mvmsta->vif || 3487 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3488 rcu_read_unlock(); 3489 return; 3490 } 3491 3492 if (mvmsta->sleeping != sleeping) { 3493 mvmsta->sleeping = sleeping; 3494 __iwl_mvm_mac_sta_notify(mvm->hw, 3495 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3496 sta); 3497 ieee80211_sta_ps_transition(sta, sleeping); 3498 } 3499 3500 if (sleeping) { 3501 switch (notif->type) { 3502 case IWL_MVM_PM_EVENT_AWAKE: 3503 case IWL_MVM_PM_EVENT_ASLEEP: 3504 break; 3505 case IWL_MVM_PM_EVENT_UAPSD: 3506 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3507 break; 3508 case IWL_MVM_PM_EVENT_PS_POLL: 3509 ieee80211_sta_pspoll(sta); 3510 break; 3511 default: 3512 break; 3513 } 3514 } 3515 3516 rcu_read_unlock(); 3517 } 3518 3519 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3520 struct ieee80211_vif *vif, 3521 struct ieee80211_sta *sta) 3522 { 3523 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3524 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3525 unsigned int link_id; 3526 3527 /* 3528 * This is called before mac80211 does RCU synchronisation, 3529 * so here we already invalidate our internal RCU-protected 3530 * station pointer. The rest of the code will thus no longer 3531 * be able to find the station this way, and we don't rely 3532 * on further RCU synchronisation after the sta_state() 3533 * callback deleted the station. 3534 * Since there's mvm->mutex here, no need to have RCU lock for 3535 * mvm_sta->link access. 3536 */ 3537 guard(mvm)(mvm); 3538 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3539 struct iwl_mvm_link_sta *link_sta; 3540 u32 sta_id; 3541 3542 if (!mvm_sta->link[link_id]) 3543 continue; 3544 3545 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3546 lockdep_is_held(&mvm->mutex)); 3547 sta_id = link_sta->sta_id; 3548 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3549 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3550 ERR_PTR(-ENOENT)); 3551 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3552 } 3553 } 3554 } 3555 3556 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3557 const u8 *bssid) 3558 { 3559 int i; 3560 3561 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3562 struct iwl_mvm_tcm_mac *mdata; 3563 3564 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3565 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3566 mdata->opened_rx_ba_sessions = false; 3567 } 3568 3569 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3570 return; 3571 3572 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3573 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3574 return; 3575 } 3576 3577 if (!vif->p2p && 3578 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3579 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3580 return; 3581 } 3582 3583 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3584 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3585 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3586 return; 3587 } 3588 } 3589 3590 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3591 } 3592 3593 static void 3594 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3595 struct ieee80211_vif *vif, u8 *peer_addr, 3596 enum nl80211_tdls_operation action) 3597 { 3598 struct iwl_fw_dbg_trigger_tlv *trig; 3599 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3600 3601 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3602 FW_DBG_TRIGGER_TDLS); 3603 if (!trig) 3604 return; 3605 3606 tdls_trig = (void *)trig->data; 3607 3608 if (!(tdls_trig->action_bitmap & BIT(action))) 3609 return; 3610 3611 if (tdls_trig->peer_mode && 3612 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3613 return; 3614 3615 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3616 "TDLS event occurred, peer %pM, action %d", 3617 peer_addr, action); 3618 } 3619 3620 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3621 bool tolerated; 3622 }; 3623 3624 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3625 struct cfg80211_bss *bss, 3626 void *_data) 3627 { 3628 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3629 const struct cfg80211_bss_ies *ies; 3630 const struct element *elem; 3631 3632 rcu_read_lock(); 3633 ies = rcu_dereference(bss->ies); 3634 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3635 ies->len); 3636 3637 if (!elem || elem->datalen < 10 || 3638 !(elem->data[10] & 3639 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3640 data->tolerated = false; 3641 } 3642 rcu_read_unlock(); 3643 } 3644 3645 static void 3646 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3647 struct ieee80211_vif *vif, 3648 unsigned int link_id, 3649 struct ieee80211_bss_conf *link_conf) 3650 { 3651 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3652 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3653 .tolerated = true, 3654 }; 3655 3656 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3657 !mvmvif->link[link_id])) 3658 return; 3659 3660 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3661 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3662 return; 3663 } 3664 3665 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3666 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3667 &iter_data); 3668 3669 /* 3670 * If there is at least one AP on radar channel that cannot 3671 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3672 */ 3673 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3674 } 3675 3676 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3677 struct ieee80211_vif *vif) 3678 { 3679 struct ieee80211_supported_band *sband; 3680 const struct ieee80211_sta_he_cap *he_cap; 3681 3682 if (vif->type != NL80211_IFTYPE_STATION) 3683 return; 3684 3685 if (!mvm->cca_40mhz_workaround) 3686 return; 3687 3688 /* decrement and check that we reached zero */ 3689 mvm->cca_40mhz_workaround--; 3690 if (mvm->cca_40mhz_workaround) 3691 return; 3692 3693 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3694 3695 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3696 3697 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3698 3699 if (he_cap) { 3700 /* we know that ours is writable */ 3701 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3702 3703 he->he_cap_elem.phy_cap_info[0] |= 3704 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3705 } 3706 } 3707 3708 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3709 struct ieee80211_vif *vif, 3710 struct iwl_mvm_sta *mvm_sta) 3711 { 3712 #if IS_ENABLED(CONFIG_IWLMEI) 3713 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3714 struct iwl_mei_conn_info conn_info = { 3715 .ssid_len = vif->cfg.ssid_len, 3716 }; 3717 3718 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3719 return; 3720 3721 if (!mvm->mei_registered) 3722 return; 3723 3724 /* FIXME: MEI needs to be updated for MLO */ 3725 if (!vif->bss_conf.chanreq.oper.chan) 3726 return; 3727 3728 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3729 3730 switch (mvm_sta->pairwise_cipher) { 3731 case WLAN_CIPHER_SUITE_TKIP: 3732 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3733 break; 3734 case WLAN_CIPHER_SUITE_CCMP: 3735 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3736 break; 3737 case WLAN_CIPHER_SUITE_GCMP: 3738 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3739 break; 3740 case WLAN_CIPHER_SUITE_GCMP_256: 3741 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3742 break; 3743 case 0: 3744 /* open profile */ 3745 break; 3746 default: 3747 /* cipher not supported, don't send anything to iwlmei */ 3748 return; 3749 } 3750 3751 switch (mvmvif->rekey_data.akm) { 3752 case WLAN_AKM_SUITE_SAE & 0xff: 3753 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3754 break; 3755 case WLAN_AKM_SUITE_PSK & 0xff: 3756 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3757 break; 3758 case WLAN_AKM_SUITE_8021X & 0xff: 3759 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3760 break; 3761 case 0: 3762 /* open profile */ 3763 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3764 break; 3765 default: 3766 /* auth method / AKM not supported */ 3767 /* TODO: All the FT vesions of these? */ 3768 return; 3769 } 3770 3771 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3772 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3773 3774 /* TODO: add support for collocated AP data */ 3775 iwl_mei_host_associated(&conn_info, NULL); 3776 #endif 3777 } 3778 3779 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3780 struct ieee80211_vif *vif, 3781 bool force_assoc_off) 3782 { 3783 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3784 } 3785 3786 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3787 struct ieee80211_vif *vif, 3788 struct ieee80211_sta *sta, 3789 enum ieee80211_sta_state old_state, 3790 enum ieee80211_sta_state new_state) 3791 { 3792 static const struct iwl_mvm_sta_state_ops callbacks = { 3793 .add_sta = iwl_mvm_add_sta, 3794 .update_sta = iwl_mvm_update_sta, 3795 .rm_sta = iwl_mvm_rm_sta, 3796 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3797 }; 3798 3799 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3800 &callbacks); 3801 } 3802 3803 /* FIXME: temporary making two assumptions in all sta handling functions: 3804 * (1) when setting sta state, the link exists and protected 3805 * (2) if a link is valid in sta then it's valid in vif (can 3806 * use same index in the link array) 3807 */ 3808 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3809 struct ieee80211_vif *vif, 3810 struct ieee80211_sta *sta) 3811 { 3812 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3813 unsigned int link_id; 3814 3815 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3816 struct ieee80211_bss_conf *conf = 3817 link_conf_dereference_check(vif, link_id); 3818 struct ieee80211_link_sta *link_sta = 3819 link_sta_dereference_check(sta, link_id); 3820 3821 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3822 continue; 3823 3824 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3825 mvmvif->link[link_id]->phy_ctxt->channel->band); 3826 } 3827 } 3828 3829 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3830 struct ieee80211_vif *vif, 3831 struct ieee80211_sta *sta) 3832 { 3833 struct ieee80211_link_sta *link_sta; 3834 unsigned int link_id; 3835 3836 /* Beacon interval check - firmware will crash if the beacon 3837 * interval is less than 16. We can't avoid connecting at all, 3838 * so refuse the station state change, this will cause mac80211 3839 * to abandon attempts to connect to this AP, and eventually 3840 * wpa_s will blocklist the AP... 3841 */ 3842 3843 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3844 struct ieee80211_bss_conf *link_conf = 3845 link_conf_dereference_protected(vif, link_id); 3846 3847 if (!link_conf) 3848 continue; 3849 3850 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3851 IWL_ERR(mvm, 3852 "Beacon interval %d for AP %pM is too small\n", 3853 link_conf->beacon_int, link_sta->addr); 3854 return false; 3855 } 3856 3857 link_conf->he_support = link_sta->he_cap.has_he; 3858 } 3859 3860 return true; 3861 } 3862 3863 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3864 struct ieee80211_vif *vif, 3865 struct ieee80211_sta *sta, 3866 bool is_sta) 3867 { 3868 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3869 struct ieee80211_link_sta *link_sta; 3870 unsigned int link_id; 3871 3872 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3873 struct ieee80211_bss_conf *link_conf = 3874 link_conf_dereference_protected(vif, link_id); 3875 3876 if (!link_conf || !mvmvif->link[link_id]) 3877 continue; 3878 3879 link_conf->he_support = link_sta->he_cap.has_he; 3880 3881 if (is_sta) { 3882 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3883 if (link_sta->he_cap.has_he) 3884 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3885 link_id, 3886 link_conf); 3887 } 3888 } 3889 } 3890 3891 static int 3892 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3893 struct ieee80211_vif *vif, 3894 struct ieee80211_sta *sta, 3895 const struct iwl_mvm_sta_state_ops *callbacks) 3896 { 3897 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3898 struct ieee80211_link_sta *link_sta; 3899 unsigned int i; 3900 int ret; 3901 3902 lockdep_assert_held(&mvm->mutex); 3903 3904 if (vif->type == NL80211_IFTYPE_STATION && 3905 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3906 return -EINVAL; 3907 3908 if (sta->tdls && 3909 (vif->p2p || 3910 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3911 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3912 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3913 return -EBUSY; 3914 } 3915 3916 ret = callbacks->add_sta(mvm, vif, sta); 3917 if (sta->tdls && ret == 0) { 3918 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3919 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3920 NL80211_TDLS_SETUP); 3921 } 3922 3923 if (ret) 3924 return ret; 3925 3926 for_each_sta_active_link(vif, sta, link_sta, i) 3927 link_sta->agg.max_rc_amsdu_len = 1; 3928 3929 ieee80211_sta_recalc_aggregates(sta); 3930 3931 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3932 mvmvif->ap_sta = sta; 3933 3934 /* 3935 * Initialize the rates here already - this really tells 3936 * the firmware only what the supported legacy rates are 3937 * (may be) since it's initialized already from what the 3938 * AP advertised in the beacon/probe response. This will 3939 * allow the firmware to send auth/assoc frames with one 3940 * of the supported rates already, rather than having to 3941 * use a mandatory rate. 3942 * If we're the AP, we'll just assume mandatory rates at 3943 * this point, but we know nothing about the STA anyway. 3944 */ 3945 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3946 3947 return 0; 3948 } 3949 3950 static int 3951 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3952 struct iwl_mvm *mvm, 3953 struct ieee80211_vif *vif, 3954 struct ieee80211_sta *sta, 3955 const struct iwl_mvm_sta_state_ops *callbacks) 3956 { 3957 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3958 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3959 struct ieee80211_link_sta *link_sta; 3960 unsigned int link_id; 3961 3962 lockdep_assert_held(&mvm->mutex); 3963 3964 if (vif->type == NL80211_IFTYPE_AP) { 3965 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3966 mvmvif->ap_assoc_sta_count++; 3967 callbacks->mac_ctxt_changed(mvm, vif, false); 3968 3969 /* since the below is not for MLD API, it's ok to use 3970 * the default bss_conf 3971 */ 3972 if (!mvm->mld_api_is_used && 3973 (vif->bss_conf.he_support && 3974 !iwlwifi_mod_params.disable_11ax)) 3975 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3976 } else if (vif->type == NL80211_IFTYPE_STATION) { 3977 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3978 3979 callbacks->mac_ctxt_changed(mvm, vif, false); 3980 3981 if (!mvm->mld_api_is_used) 3982 goto out; 3983 3984 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3985 struct ieee80211_bss_conf *link_conf = 3986 link_conf_dereference_protected(vif, link_id); 3987 3988 if (WARN_ON(!link_conf)) 3989 return -EINVAL; 3990 if (!mvmvif->link[link_id]) 3991 continue; 3992 3993 iwl_mvm_link_changed(mvm, vif, link_conf, 3994 LINK_CONTEXT_MODIFY_ALL & 3995 ~LINK_CONTEXT_MODIFY_ACTIVE, 3996 true); 3997 } 3998 } 3999 4000 out: 4001 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4002 4003 return callbacks->update_sta(mvm, vif, sta); 4004 } 4005 4006 static int 4007 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 4008 struct ieee80211_vif *vif, 4009 struct ieee80211_sta *sta, 4010 const struct iwl_mvm_sta_state_ops *callbacks) 4011 { 4012 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4013 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4014 4015 lockdep_assert_held(&mvm->mutex); 4016 4017 /* we don't support TDLS during DCM */ 4018 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4019 iwl_mvm_teardown_tdls_peers(mvm); 4020 4021 if (sta->tdls) { 4022 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4023 NL80211_TDLS_ENABLE_LINK); 4024 } else { 4025 /* enable beacon filtering */ 4026 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 4027 4028 mvmvif->authorized = 1; 4029 4030 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 4031 mvmvif->link_selection_res = vif->active_links; 4032 mvmvif->link_selection_primary = 4033 vif->active_links ? __ffs(vif->active_links) : 0; 4034 } 4035 4036 callbacks->mac_ctxt_changed(mvm, vif, false); 4037 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 4038 4039 memset(&mvmvif->last_esr_exit, 0, 4040 sizeof(mvmvif->last_esr_exit)); 4041 4042 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); 4043 4044 /* Block until FW notif will arrive */ 4045 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0); 4046 4047 /* when client is authorized (AP station marked as such), 4048 * try to enable the best link(s). 4049 */ 4050 if (vif->type == NL80211_IFTYPE_STATION && 4051 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4052 iwl_mvm_select_links(mvm, vif); 4053 } 4054 4055 mvm_sta->authorized = true; 4056 4057 /* MFP is set by default before the station is authorized. 4058 * Clear it here in case it's not used. 4059 */ 4060 if (!sta->mfp) { 4061 int ret = callbacks->update_sta(mvm, vif, sta); 4062 4063 if (ret) 4064 return ret; 4065 } 4066 4067 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4068 4069 return 0; 4070 } 4071 4072 static int 4073 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 4074 struct ieee80211_vif *vif, 4075 struct ieee80211_sta *sta, 4076 const struct iwl_mvm_sta_state_ops *callbacks) 4077 { 4078 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4079 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4080 4081 lockdep_assert_held(&mvm->mutex); 4082 4083 mvmsta->authorized = false; 4084 4085 /* once we move into assoc state, need to update rate scale to 4086 * disable using wide bandwidth 4087 */ 4088 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4089 4090 if (!sta->tdls) { 4091 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 4092 * yet to avoid sending high prio again for a little 4093 * time. 4094 */ 4095 mvmvif->authorized = 0; 4096 mvmvif->link_selection_res = 0; 4097 4098 /* disable beacon filtering */ 4099 iwl_mvm_disable_beacon_filter(mvm, vif); 4100 4101 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4102 &mvmvif->prevent_esr_done_wk); 4103 4104 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4105 &mvmvif->mlo_int_scan_wk); 4106 4107 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 4108 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4109 &mvmvif->unblock_esr_tmp_non_bss_wk); 4110 4111 /* No need for the periodic statistics anymore */ 4112 if (ieee80211_vif_is_mld(vif) && mvmvif->esr_active) 4113 iwl_mvm_request_periodic_system_statistics(mvm, false); 4114 } 4115 4116 return 0; 4117 } 4118 4119 /* Common part for MLD and non-MLD modes */ 4120 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4121 struct ieee80211_vif *vif, 4122 struct ieee80211_sta *sta, 4123 enum ieee80211_sta_state old_state, 4124 enum ieee80211_sta_state new_state, 4125 const struct iwl_mvm_sta_state_ops *callbacks) 4126 { 4127 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4128 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4129 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4130 struct ieee80211_link_sta *link_sta; 4131 unsigned int link_id; 4132 int ret; 4133 4134 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4135 sta->addr, old_state, new_state); 4136 4137 /* 4138 * If we are in a STA removal flow and in DQA mode: 4139 * 4140 * This is after the sync_rcu part, so the queues have already been 4141 * flushed. No more TXs on their way in mac80211's path, and no more in 4142 * the queues. 4143 * Also, we won't be getting any new TX frames for this station. 4144 * What we might have are deferred TX frames that need to be taken care 4145 * of. 4146 * 4147 * Drop any still-queued deferred-frame before removing the STA, and 4148 * make sure the worker is no longer handling frames for this STA. 4149 */ 4150 if (old_state == IEEE80211_STA_NONE && 4151 new_state == IEEE80211_STA_NOTEXIST) { 4152 flush_work(&mvm->add_stream_wk); 4153 4154 /* 4155 * No need to make sure deferred TX indication is off since the 4156 * worker will already remove it if it was on 4157 */ 4158 4159 /* 4160 * Additionally, reset the 40 MHz capability if we disconnected 4161 * from the AP now. 4162 */ 4163 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4164 4165 /* Also free dup data just in case any assertions below fail */ 4166 kfree(mvm_sta->dup_data); 4167 } 4168 4169 mutex_lock(&mvm->mutex); 4170 4171 /* this would be a mac80211 bug ... but don't crash, unless we had a 4172 * firmware crash while we were activating a link, in which case it is 4173 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4174 * recovery flow since we spit tons of error messages anyway. 4175 */ 4176 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4177 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4178 !mvmvif->link[link_id]->phy_ctxt)) { 4179 mutex_unlock(&mvm->mutex); 4180 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4181 &mvm->status) ? 0 : -EINVAL; 4182 } 4183 } 4184 4185 /* track whether or not the station is associated */ 4186 mvm_sta->sta_state = new_state; 4187 4188 if (old_state == IEEE80211_STA_NOTEXIST && 4189 new_state == IEEE80211_STA_NONE) { 4190 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4191 callbacks); 4192 if (ret < 0) 4193 goto out_unlock; 4194 } else if (old_state == IEEE80211_STA_NONE && 4195 new_state == IEEE80211_STA_AUTH) { 4196 /* 4197 * EBS may be disabled due to previous failures reported by FW. 4198 * Reset EBS status here assuming environment has been changed. 4199 */ 4200 mvm->last_ebs_successful = true; 4201 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4202 ret = 0; 4203 } else if (old_state == IEEE80211_STA_AUTH && 4204 new_state == IEEE80211_STA_ASSOC) { 4205 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4206 callbacks); 4207 } else if (old_state == IEEE80211_STA_ASSOC && 4208 new_state == IEEE80211_STA_AUTHORIZED) { 4209 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4210 callbacks); 4211 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4212 new_state == IEEE80211_STA_ASSOC) { 4213 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4214 callbacks); 4215 } else if (old_state == IEEE80211_STA_ASSOC && 4216 new_state == IEEE80211_STA_AUTH) { 4217 if (vif->type == NL80211_IFTYPE_AP) { 4218 mvmvif->ap_assoc_sta_count--; 4219 callbacks->mac_ctxt_changed(mvm, vif, false); 4220 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4221 iwl_mvm_stop_session_protection(mvm, vif); 4222 ret = 0; 4223 } else if (old_state == IEEE80211_STA_AUTH && 4224 new_state == IEEE80211_STA_NONE) { 4225 ret = 0; 4226 } else if (old_state == IEEE80211_STA_NONE && 4227 new_state == IEEE80211_STA_NOTEXIST) { 4228 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4229 iwl_mvm_stop_session_protection(mvm, vif); 4230 mvmvif->ap_sta = NULL; 4231 } 4232 ret = callbacks->rm_sta(mvm, vif, sta); 4233 if (sta->tdls) { 4234 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4235 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4236 NL80211_TDLS_DISABLE_LINK); 4237 } 4238 4239 if (unlikely(ret && 4240 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4241 &mvm->status))) 4242 ret = 0; 4243 } else { 4244 ret = -EIO; 4245 } 4246 out_unlock: 4247 mutex_unlock(&mvm->mutex); 4248 4249 if (sta->tdls && ret == 0) { 4250 if (old_state == IEEE80211_STA_NOTEXIST && 4251 new_state == IEEE80211_STA_NONE) 4252 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4253 else if (old_state == IEEE80211_STA_NONE && 4254 new_state == IEEE80211_STA_NOTEXIST) 4255 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4256 } 4257 4258 return ret; 4259 } 4260 4261 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4262 { 4263 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4264 4265 mvm->rts_threshold = value; 4266 4267 return 0; 4268 } 4269 4270 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4271 struct ieee80211_link_sta *link_sta, u32 changed) 4272 { 4273 struct ieee80211_sta *sta = link_sta->sta; 4274 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4275 4276 if (changed & (IEEE80211_RC_BW_CHANGED | 4277 IEEE80211_RC_SUPP_RATES_CHANGED | 4278 IEEE80211_RC_NSS_CHANGED)) 4279 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4280 4281 if (vif->type == NL80211_IFTYPE_STATION && 4282 changed & IEEE80211_RC_NSS_CHANGED) 4283 iwl_mvm_sf_update(mvm, vif, false); 4284 } 4285 4286 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4287 struct ieee80211_vif *vif, 4288 unsigned int link_id, u16 ac, 4289 const struct ieee80211_tx_queue_params *params) 4290 { 4291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4292 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4293 4294 mvmvif->deflink.queue_params[ac] = *params; 4295 4296 /* 4297 * No need to update right away, we'll get BSS_CHANGED_QOS 4298 * The exception is P2P_DEVICE interface which needs immediate update. 4299 */ 4300 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4301 guard(mvm)(mvm); 4302 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4303 } 4304 return 0; 4305 } 4306 4307 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4308 struct ieee80211_vif *vif, 4309 struct ieee80211_prep_tx_info *info) 4310 { 4311 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4312 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4313 4314 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4315 return; 4316 4317 guard(mvm)(mvm); 4318 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4319 } 4320 4321 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4322 struct ieee80211_vif *vif, 4323 struct ieee80211_prep_tx_info *info) 4324 { 4325 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4326 4327 /* for successful cases (auth/assoc), don't cancel session protection */ 4328 if (info->success) 4329 return; 4330 4331 guard(mvm)(mvm); 4332 iwl_mvm_stop_session_protection(mvm, vif); 4333 } 4334 4335 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4336 struct ieee80211_vif *vif, 4337 struct cfg80211_sched_scan_request *req, 4338 struct ieee80211_scan_ies *ies) 4339 { 4340 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4341 4342 guard(mvm)(mvm); 4343 4344 if (!vif->cfg.idle) 4345 return -EBUSY; 4346 4347 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4348 } 4349 4350 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4351 struct ieee80211_vif *vif) 4352 { 4353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4354 int ret; 4355 4356 mutex_lock(&mvm->mutex); 4357 4358 /* Due to a race condition, it's possible that mac80211 asks 4359 * us to stop a sched_scan when it's already stopped. This 4360 * can happen, for instance, if we stopped the scan ourselves, 4361 * called ieee80211_sched_scan_stopped() and the userspace called 4362 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4363 * could run. To handle this, simply return if the scan is 4364 * not running. 4365 */ 4366 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4367 mutex_unlock(&mvm->mutex); 4368 return 0; 4369 } 4370 4371 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4372 mutex_unlock(&mvm->mutex); 4373 iwl_mvm_wait_for_async_handlers(mvm); 4374 4375 return ret; 4376 } 4377 4378 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4379 enum set_key_cmd cmd, 4380 struct ieee80211_vif *vif, 4381 struct ieee80211_sta *sta, 4382 struct ieee80211_key_conf *key) 4383 { 4384 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4385 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4386 struct iwl_mvm_sta *mvmsta = NULL; 4387 struct iwl_mvm_key_pn *ptk_pn = NULL; 4388 int keyidx = key->keyidx; 4389 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4390 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4391 int ret, i; 4392 u8 key_offset; 4393 4394 if (sta) 4395 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4396 4397 switch (key->cipher) { 4398 case WLAN_CIPHER_SUITE_TKIP: 4399 if (!mvm->trans->trans_cfg->gen2) { 4400 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4401 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4402 } else if (vif->type == NL80211_IFTYPE_STATION) { 4403 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4404 } else { 4405 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4406 return -EOPNOTSUPP; 4407 } 4408 break; 4409 case WLAN_CIPHER_SUITE_CCMP: 4410 case WLAN_CIPHER_SUITE_GCMP: 4411 case WLAN_CIPHER_SUITE_GCMP_256: 4412 if (!iwl_mvm_has_new_tx_api(mvm)) 4413 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4414 break; 4415 case WLAN_CIPHER_SUITE_AES_CMAC: 4416 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4417 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4418 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4419 break; 4420 case WLAN_CIPHER_SUITE_WEP40: 4421 case WLAN_CIPHER_SUITE_WEP104: 4422 if (vif->type == NL80211_IFTYPE_STATION) 4423 break; 4424 if (iwl_mvm_has_new_tx_api(mvm)) 4425 return -EOPNOTSUPP; 4426 /* support HW crypto on TX */ 4427 return 0; 4428 default: 4429 return -EOPNOTSUPP; 4430 } 4431 4432 switch (cmd) { 4433 case SET_KEY: 4434 if (vif->type == NL80211_IFTYPE_STATION && 4435 (keyidx == 6 || keyidx == 7)) 4436 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4437 key); 4438 4439 if ((vif->type == NL80211_IFTYPE_ADHOC || 4440 vif->type == NL80211_IFTYPE_AP) && !sta) { 4441 /* 4442 * GTK on AP interface is a TX-only key, return 0; 4443 * on IBSS they're per-station and because we're lazy 4444 * we don't support them for RX, so do the same. 4445 * CMAC/GMAC in AP/IBSS modes must be done in software 4446 * on older NICs. 4447 * 4448 * Except, of course, beacon protection - it must be 4449 * offloaded since we just set a beacon template, and 4450 * then we must also offload the IGTK (not just BIGTK) 4451 * for firmware reasons. 4452 * 4453 * So just check for beacon protection - if we don't 4454 * have it we cannot get here with keyidx >= 6, and 4455 * if we do have it we need to send the key to FW in 4456 * all cases (CMAC/GMAC). 4457 */ 4458 if (!wiphy_ext_feature_isset(hw->wiphy, 4459 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4460 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4461 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4462 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4463 ret = -EOPNOTSUPP; 4464 break; 4465 } 4466 4467 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4468 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4469 !iwl_mvm_has_new_tx_api(mvm)) { 4470 key->hw_key_idx = STA_KEY_IDX_INVALID; 4471 ret = 0; 4472 break; 4473 } 4474 4475 if (!mvmvif->ap_ibss_active) { 4476 for (i = 0; 4477 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4478 i++) { 4479 if (!mvmvif->ap_early_keys[i]) { 4480 mvmvif->ap_early_keys[i] = key; 4481 break; 4482 } 4483 } 4484 4485 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4486 ret = -ENOSPC; 4487 else 4488 ret = 0; 4489 4490 break; 4491 } 4492 } 4493 4494 /* During FW restart, in order to restore the state as it was, 4495 * don't try to reprogram keys we previously failed for. 4496 */ 4497 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4498 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4499 IWL_DEBUG_MAC80211(mvm, 4500 "skip invalid idx key programming during restart\n"); 4501 ret = 0; 4502 break; 4503 } 4504 4505 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4506 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4507 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4508 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4509 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4510 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4511 struct ieee80211_key_seq seq; 4512 int tid, q; 4513 4514 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4515 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4516 mvm->trans->num_rx_queues), 4517 GFP_KERNEL); 4518 if (!ptk_pn) { 4519 ret = -ENOMEM; 4520 break; 4521 } 4522 4523 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4524 ieee80211_get_key_rx_seq(key, tid, &seq); 4525 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4526 memcpy(ptk_pn->q[q].pn[tid], 4527 seq.ccmp.pn, 4528 IEEE80211_CCMP_PN_LEN); 4529 } 4530 4531 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4532 } 4533 4534 /* in HW restart reuse the index, otherwise request a new one */ 4535 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4536 key_offset = key->hw_key_idx; 4537 else 4538 key_offset = STA_KEY_IDX_INVALID; 4539 4540 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4541 mvmsta->pairwise_cipher = key->cipher; 4542 4543 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4544 sta ? sta->addr : NULL, key->keyidx); 4545 4546 if (sec_key_ver) 4547 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4548 else 4549 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4550 4551 if (ret) { 4552 IWL_WARN(mvm, "set key failed\n"); 4553 key->hw_key_idx = STA_KEY_IDX_INVALID; 4554 if (ptk_pn) { 4555 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4556 kfree(ptk_pn); 4557 } 4558 /* 4559 * can't add key for RX, but we don't need it 4560 * in the device for TX so still return 0, 4561 * unless we have new TX API where we cannot 4562 * put key material into the TX_CMD 4563 */ 4564 if (iwl_mvm_has_new_tx_api(mvm)) 4565 ret = -EOPNOTSUPP; 4566 else 4567 ret = 0; 4568 } 4569 4570 break; 4571 case DISABLE_KEY: 4572 if (vif->type == NL80211_IFTYPE_STATION && 4573 (keyidx == 6 || keyidx == 7)) 4574 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4575 NULL); 4576 4577 ret = -ENOENT; 4578 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4579 if (mvmvif->ap_early_keys[i] == key) { 4580 mvmvif->ap_early_keys[i] = NULL; 4581 ret = 0; 4582 } 4583 } 4584 4585 /* found in pending list - don't do anything else */ 4586 if (ret == 0) 4587 break; 4588 4589 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4590 ret = 0; 4591 break; 4592 } 4593 4594 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4595 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4596 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4597 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4598 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4599 ptk_pn = rcu_dereference_protected( 4600 mvmsta->ptk_pn[keyidx], 4601 lockdep_is_held(&mvm->mutex)); 4602 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4603 if (ptk_pn) 4604 kfree_rcu(ptk_pn, rcu_head); 4605 } 4606 4607 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4608 if (sec_key_ver) 4609 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4610 else 4611 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4612 break; 4613 default: 4614 ret = -EINVAL; 4615 } 4616 4617 return ret; 4618 } 4619 4620 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4621 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4622 struct ieee80211_key_conf *key) 4623 { 4624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4625 4626 guard(mvm)(mvm); 4627 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4628 } 4629 4630 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4631 struct ieee80211_vif *vif, 4632 struct ieee80211_key_conf *keyconf, 4633 struct ieee80211_sta *sta, 4634 u32 iv32, u16 *phase1key) 4635 { 4636 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4637 4638 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4639 return; 4640 4641 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4642 } 4643 4644 4645 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4646 struct iwl_rx_packet *pkt, void *data) 4647 { 4648 struct iwl_mvm *mvm = 4649 container_of(notif_wait, struct iwl_mvm, notif_wait); 4650 struct iwl_hs20_roc_res *resp; 4651 int resp_len = iwl_rx_packet_payload_len(pkt); 4652 struct iwl_mvm_time_event_data *te_data = data; 4653 4654 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4655 return true; 4656 4657 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4658 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4659 return true; 4660 } 4661 4662 resp = (void *)pkt->data; 4663 4664 IWL_DEBUG_TE(mvm, 4665 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4666 resp->status, resp->event_unique_id); 4667 4668 te_data->uid = le32_to_cpu(resp->event_unique_id); 4669 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4670 te_data->uid); 4671 4672 spin_lock_bh(&mvm->time_event_lock); 4673 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4674 spin_unlock_bh(&mvm->time_event_lock); 4675 4676 return true; 4677 } 4678 4679 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4680 struct ieee80211_channel *channel, 4681 struct ieee80211_vif *vif, 4682 int duration) 4683 { 4684 int res; 4685 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4686 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4687 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4688 struct iwl_notification_wait wait_time_event; 4689 u32 req_dur, delay; 4690 struct iwl_hs20_roc_req aux_roc_req = { 4691 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4692 .id_and_color = 4693 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4694 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4695 }; 4696 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4697 &aux_roc_req.channel_info); 4698 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4699 4700 /* Set the channel info data */ 4701 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4702 iwl_mvm_phy_band_from_nl80211(channel->band), 4703 IWL_PHY_CHANNEL_MODE20, 4704 0); 4705 4706 /* Set the time and duration */ 4707 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4708 4709 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4710 tail->duration = cpu_to_le32(req_dur); 4711 tail->apply_time_max_delay = cpu_to_le32(delay); 4712 4713 IWL_DEBUG_TE(mvm, 4714 "ROC: Requesting to remain on channel %u for %ums\n", 4715 channel->hw_value, req_dur); 4716 IWL_DEBUG_TE(mvm, 4717 "\t(requested = %ums, max_delay = %ums)\n", 4718 duration, delay); 4719 4720 /* Set the node address */ 4721 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4722 4723 lockdep_assert_held(&mvm->mutex); 4724 4725 spin_lock_bh(&mvm->time_event_lock); 4726 4727 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4728 spin_unlock_bh(&mvm->time_event_lock); 4729 return -EIO; 4730 } 4731 4732 te_data->vif = vif; 4733 te_data->duration = duration; 4734 te_data->id = HOT_SPOT_CMD; 4735 4736 spin_unlock_bh(&mvm->time_event_lock); 4737 4738 /* 4739 * Use a notification wait, which really just processes the 4740 * command response and doesn't wait for anything, in order 4741 * to be able to process the response and get the UID inside 4742 * the RX path. Using CMD_WANT_SKB doesn't work because it 4743 * stores the buffer and then wakes up this thread, by which 4744 * time another notification (that the time event started) 4745 * might already be processed unsuccessfully. 4746 */ 4747 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4748 time_event_response, 4749 ARRAY_SIZE(time_event_response), 4750 iwl_mvm_rx_aux_roc, te_data); 4751 4752 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4753 &aux_roc_req); 4754 4755 if (res) { 4756 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4757 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4758 goto out_clear_te; 4759 } 4760 4761 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4762 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4763 /* should never fail */ 4764 WARN_ON_ONCE(res); 4765 4766 if (res) { 4767 out_clear_te: 4768 spin_lock_bh(&mvm->time_event_lock); 4769 iwl_mvm_te_clear_data(mvm, te_data); 4770 spin_unlock_bh(&mvm->time_event_lock); 4771 } 4772 4773 return res; 4774 } 4775 4776 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4777 { 4778 int ret = 0; 4779 4780 lockdep_assert_held(&mvm->mutex); 4781 4782 if (!fw_has_capa(&mvm->fw->ucode_capa, 4783 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4784 IWL_ERR(mvm, "hotspot not supported\n"); 4785 return -EINVAL; 4786 } 4787 4788 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4789 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4790 WARN(ret, "Failed to allocate aux station"); 4791 } 4792 4793 return ret; 4794 } 4795 4796 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4797 { 4798 int ret; 4799 4800 lockdep_assert_held(&mvm->mutex); 4801 4802 ret = iwl_mvm_binding_add_vif(mvm, vif); 4803 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4804 return ret; 4805 4806 /* The station and queue allocation must be done only after the binding 4807 * is done, as otherwise the FW might incorrectly configure its state. 4808 */ 4809 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4810 } 4811 4812 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4813 struct ieee80211_vif *vif, 4814 struct ieee80211_channel *channel, 4815 int duration, 4816 enum ieee80211_roc_type type) 4817 { 4818 static const struct iwl_mvm_roc_ops ops = { 4819 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4820 .link = iwl_mvm_roc_link, 4821 }; 4822 4823 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4824 } 4825 4826 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4827 struct ieee80211_channel *channel, 4828 struct ieee80211_vif *vif, 4829 int duration) 4830 { 4831 int ret; 4832 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4833 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4834 IWL_FW_CMD_VER_UNKNOWN); 4835 4836 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4837 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4838 } else if (fw_ver >= 3) { 4839 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4840 ROC_ACTIVITY_HOTSPOT); 4841 } else { 4842 ret = -EOPNOTSUPP; 4843 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4844 } 4845 4846 return ret; 4847 } 4848 4849 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4850 struct ieee80211_channel *channel, 4851 struct ieee80211_vif *vif, 4852 int duration, 4853 enum ieee80211_roc_type type) 4854 { 4855 enum iwl_roc_activity activity; 4856 int ret; 4857 4858 lockdep_assert_held(&mvm->mutex); 4859 4860 switch (type) { 4861 case IEEE80211_ROC_TYPE_NORMAL: 4862 activity = ROC_ACTIVITY_P2P_DISC; 4863 break; 4864 case IEEE80211_ROC_TYPE_MGMT_TX: 4865 activity = ROC_ACTIVITY_P2P_NEG; 4866 break; 4867 default: 4868 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4869 return -EINVAL; 4870 } 4871 4872 ret = iwl_mvm_mld_add_aux_sta(mvm, 4873 iwl_mvm_get_lmac_id(mvm, channel->band)); 4874 if (ret) 4875 return ret; 4876 4877 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4878 } 4879 4880 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4881 struct ieee80211_vif *vif, 4882 struct ieee80211_channel *channel) 4883 { 4884 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4885 struct cfg80211_chan_def chandef; 4886 int i; 4887 4888 lockdep_assert_held(&mvm->mutex); 4889 4890 if (mvmvif->deflink.phy_ctxt && 4891 channel == mvmvif->deflink.phy_ctxt->channel) 4892 return 0; 4893 4894 /* Try using a PHY context that is already in use */ 4895 for (i = 0; i < NUM_PHY_CTX; i++) { 4896 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4897 4898 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4899 continue; 4900 4901 if (channel == phy_ctxt->channel) { 4902 if (mvmvif->deflink.phy_ctxt) 4903 iwl_mvm_phy_ctxt_unref(mvm, 4904 mvmvif->deflink.phy_ctxt); 4905 4906 mvmvif->deflink.phy_ctxt = phy_ctxt; 4907 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4908 return 0; 4909 } 4910 } 4911 4912 /* We already have a phy_ctxt, but it's not on the right channel */ 4913 if (mvmvif->deflink.phy_ctxt) 4914 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4915 4916 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4917 if (!mvmvif->deflink.phy_ctxt) 4918 return -ENOSPC; 4919 4920 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4921 4922 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4923 &chandef, NULL, 1, 1); 4924 } 4925 4926 /* Execute the common part for MLD and non-MLD modes */ 4927 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4928 struct ieee80211_channel *channel, int duration, 4929 enum ieee80211_roc_type type, 4930 const struct iwl_mvm_roc_ops *ops) 4931 { 4932 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4933 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); 4934 u32 lmac_id; 4935 int ret; 4936 4937 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4938 duration, type); 4939 4940 /* 4941 * Flush the done work, just in case it's still pending, so that 4942 * the work it does can complete and we can accept new frames. 4943 */ 4944 flush_work(&mvm->roc_done_wk); 4945 4946 if (!IS_ERR_OR_NULL(bss_vif)) { 4947 ret = iwl_mvm_block_esr_sync(mvm, bss_vif, 4948 IWL_MVM_ESR_BLOCKED_ROC); 4949 if (ret) 4950 return ret; 4951 } 4952 4953 guard(mvm)(mvm); 4954 4955 switch (vif->type) { 4956 case NL80211_IFTYPE_STATION: 4957 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4958 4959 /* Use aux roc framework (HS20) */ 4960 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4961 if (!ret) 4962 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4963 return ret; 4964 case NL80211_IFTYPE_P2P_DEVICE: 4965 /* handle below */ 4966 break; 4967 default: 4968 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4969 return -EINVAL; 4970 } 4971 4972 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4973 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4974 return ret; 4975 } 4976 4977 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4978 if (ret) 4979 return ret; 4980 4981 ret = ops->link(mvm, vif); 4982 if (ret) 4983 return ret; 4984 4985 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4986 } 4987 4988 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4989 struct ieee80211_vif *vif) 4990 { 4991 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4992 4993 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4994 4995 iwl_mvm_stop_roc(mvm, vif); 4996 4997 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4998 return 0; 4999 } 5000 5001 struct iwl_mvm_ftm_responder_iter_data { 5002 bool responder; 5003 struct ieee80211_chanctx_conf *ctx; 5004 }; 5005 5006 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 5007 struct ieee80211_vif *vif) 5008 { 5009 struct iwl_mvm_ftm_responder_iter_data *data = _data; 5010 5011 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 5012 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 5013 data->responder = true; 5014 } 5015 5016 bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 5017 struct ieee80211_chanctx_conf *ctx) 5018 { 5019 struct iwl_mvm_ftm_responder_iter_data data = { 5020 .responder = false, 5021 .ctx = ctx, 5022 }; 5023 5024 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 5025 IEEE80211_IFACE_ITER_NORMAL, 5026 iwl_mvm_ftm_responder_chanctx_iter, 5027 &data); 5028 return data.responder; 5029 } 5030 5031 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 5032 struct ieee80211_chanctx_conf *ctx) 5033 { 5034 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5035 struct iwl_mvm_phy_ctxt *phy_ctxt; 5036 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5037 int ret; 5038 5039 lockdep_assert_held(&mvm->mutex); 5040 5041 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 5042 5043 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 5044 if (!phy_ctxt) { 5045 ret = -ENOSPC; 5046 goto out; 5047 } 5048 5049 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 5050 ctx->rx_chains_static, 5051 ctx->rx_chains_dynamic); 5052 if (ret) { 5053 IWL_ERR(mvm, "Failed to add PHY context\n"); 5054 goto out; 5055 } 5056 5057 *phy_ctxt_id = phy_ctxt->id; 5058 out: 5059 return ret; 5060 } 5061 5062 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 5063 struct ieee80211_chanctx_conf *ctx) 5064 { 5065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5066 5067 guard(mvm)(mvm); 5068 return __iwl_mvm_add_chanctx(mvm, ctx); 5069 } 5070 5071 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 5072 struct ieee80211_chanctx_conf *ctx) 5073 { 5074 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5075 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5076 5077 lockdep_assert_held(&mvm->mutex); 5078 5079 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 5080 } 5081 5082 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 5083 struct ieee80211_chanctx_conf *ctx) 5084 { 5085 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5086 5087 guard(mvm)(mvm); 5088 __iwl_mvm_remove_chanctx(mvm, ctx); 5089 } 5090 5091 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 5092 struct ieee80211_chanctx_conf *ctx, u32 changed) 5093 { 5094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5095 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5096 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5097 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5098 5099 if (WARN_ONCE((phy_ctxt->ref > 1) && 5100 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 5101 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 5102 IEEE80211_CHANCTX_CHANGE_RADAR | 5103 IEEE80211_CHANCTX_CHANGE_MIN_DEF)), 5104 "Cannot change PHY. Ref=%d, changed=0x%X\n", 5105 phy_ctxt->ref, changed)) 5106 return; 5107 5108 guard(mvm)(mvm); 5109 5110 /* we are only changing the min_width, may be a noop */ 5111 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) { 5112 if (phy_ctxt->width == def->width) 5113 return; 5114 5115 /* we are just toggling between 20_NOHT and 20 */ 5116 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5117 def->width <= NL80211_CHAN_WIDTH_20) 5118 return; 5119 } 5120 5121 iwl_mvm_bt_coex_vif_change(mvm); 5122 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5123 ctx->rx_chains_static, 5124 ctx->rx_chains_dynamic); 5125 } 5126 5127 /* 5128 * This function executes the common part for MLD and non-MLD modes. 5129 * 5130 * Returns true if we're done assigning the chanctx 5131 * (either on failure or success) 5132 */ 5133 static bool 5134 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5135 struct ieee80211_vif *vif, 5136 struct ieee80211_chanctx_conf *ctx, 5137 bool switching_chanctx, int *ret) 5138 { 5139 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5140 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5141 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5142 5143 lockdep_assert_held(&mvm->mutex); 5144 5145 mvmvif->deflink.phy_ctxt = phy_ctxt; 5146 5147 switch (vif->type) { 5148 case NL80211_IFTYPE_AP: 5149 /* only needed if we're switching chanctx (i.e. during CSA) */ 5150 if (switching_chanctx) { 5151 mvmvif->ap_ibss_active = true; 5152 break; 5153 } 5154 fallthrough; 5155 case NL80211_IFTYPE_ADHOC: 5156 /* 5157 * The AP binding flow is handled as part of the start_ap flow 5158 * (in bss_info_changed), similarly for IBSS. 5159 */ 5160 *ret = 0; 5161 return true; 5162 case NL80211_IFTYPE_STATION: 5163 break; 5164 case NL80211_IFTYPE_MONITOR: 5165 /* always disable PS when a monitor interface is active */ 5166 mvmvif->ps_disabled = true; 5167 break; 5168 default: 5169 *ret = -EINVAL; 5170 return true; 5171 } 5172 return false; 5173 } 5174 5175 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5176 struct ieee80211_vif *vif, 5177 struct ieee80211_bss_conf *link_conf, 5178 struct ieee80211_chanctx_conf *ctx, 5179 bool switching_chanctx) 5180 { 5181 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5182 int ret; 5183 5184 if (WARN_ON(!link_conf)) 5185 return -EINVAL; 5186 5187 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5188 switching_chanctx, &ret)) 5189 goto out; 5190 5191 ret = iwl_mvm_binding_add_vif(mvm, vif); 5192 if (ret) 5193 goto out; 5194 5195 /* 5196 * Power state must be updated before quotas, 5197 * otherwise fw will complain. 5198 */ 5199 iwl_mvm_power_update_mac(mvm); 5200 5201 /* Setting the quota at this stage is only required for monitor 5202 * interfaces. For the other types, the bss_info changed flow 5203 * will handle quota settings. 5204 */ 5205 if (vif->type == NL80211_IFTYPE_MONITOR) { 5206 mvmvif->monitor_active = true; 5207 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5208 if (ret) 5209 goto out_remove_binding; 5210 5211 ret = iwl_mvm_add_snif_sta(mvm, vif); 5212 if (ret) 5213 goto out_remove_binding; 5214 5215 } 5216 5217 /* Handle binding during CSA */ 5218 if (vif->type == NL80211_IFTYPE_AP) { 5219 iwl_mvm_update_quotas(mvm, false, NULL); 5220 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5221 } 5222 5223 if (vif->type == NL80211_IFTYPE_STATION) { 5224 if (!switching_chanctx) { 5225 mvmvif->csa_bcn_pending = false; 5226 goto out; 5227 } 5228 5229 mvmvif->csa_bcn_pending = true; 5230 5231 if (!fw_has_capa(&mvm->fw->ucode_capa, 5232 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5233 u32 duration = 5 * vif->bss_conf.beacon_int; 5234 5235 /* Protect the session to make sure we hear the first 5236 * beacon on the new channel. 5237 */ 5238 iwl_mvm_protect_session(mvm, vif, duration, duration, 5239 vif->bss_conf.beacon_int / 2, 5240 true); 5241 } 5242 5243 iwl_mvm_update_quotas(mvm, false, NULL); 5244 5245 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5246 link_conf, 5247 false); 5248 } 5249 5250 goto out; 5251 5252 out_remove_binding: 5253 iwl_mvm_binding_remove_vif(mvm, vif); 5254 iwl_mvm_power_update_mac(mvm); 5255 out: 5256 if (ret) 5257 mvmvif->deflink.phy_ctxt = NULL; 5258 return ret; 5259 } 5260 5261 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5262 struct ieee80211_vif *vif, 5263 struct ieee80211_bss_conf *link_conf, 5264 struct ieee80211_chanctx_conf *ctx) 5265 { 5266 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5267 5268 guard(mvm)(mvm); 5269 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5270 } 5271 5272 /* 5273 * This function executes the common part for MLD and non-MLD modes. 5274 * 5275 * Returns if chanctx unassign chanctx is done 5276 * (either on failure or success) 5277 */ 5278 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5279 struct ieee80211_vif *vif, 5280 bool switching_chanctx) 5281 { 5282 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5283 5284 lockdep_assert_held(&mvm->mutex); 5285 iwl_mvm_remove_time_event(mvm, mvmvif, 5286 &mvmvif->time_event_data); 5287 5288 switch (vif->type) { 5289 case NL80211_IFTYPE_ADHOC: 5290 return true; 5291 case NL80211_IFTYPE_MONITOR: 5292 mvmvif->monitor_active = false; 5293 mvmvif->ps_disabled = false; 5294 break; 5295 case NL80211_IFTYPE_AP: 5296 /* This part is triggered only during CSA */ 5297 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5298 return true; 5299 5300 mvmvif->csa_countdown = false; 5301 5302 /* Set CS bit on all the stations */ 5303 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5304 5305 /* Save blocked iface, the timeout is set on the next beacon */ 5306 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5307 5308 mvmvif->ap_ibss_active = false; 5309 break; 5310 default: 5311 break; 5312 } 5313 return false; 5314 } 5315 5316 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5317 struct ieee80211_vif *vif, 5318 struct ieee80211_bss_conf *link_conf, 5319 struct ieee80211_chanctx_conf *ctx, 5320 bool switching_chanctx) 5321 { 5322 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5323 struct ieee80211_vif *disabled_vif = NULL; 5324 5325 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5326 goto out; 5327 5328 if (vif->type == NL80211_IFTYPE_MONITOR) 5329 iwl_mvm_rm_snif_sta(mvm, vif); 5330 5331 5332 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5333 disabled_vif = vif; 5334 if (!fw_has_capa(&mvm->fw->ucode_capa, 5335 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5336 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5337 } 5338 5339 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5340 iwl_mvm_binding_remove_vif(mvm, vif); 5341 5342 out: 5343 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5344 switching_chanctx) 5345 return; 5346 mvmvif->deflink.phy_ctxt = NULL; 5347 iwl_mvm_power_update_mac(mvm); 5348 } 5349 5350 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5351 struct ieee80211_vif *vif, 5352 struct ieee80211_bss_conf *link_conf, 5353 struct ieee80211_chanctx_conf *ctx) 5354 { 5355 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5356 5357 guard(mvm)(mvm); 5358 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5359 } 5360 5361 static int 5362 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5363 struct ieee80211_vif_chanctx_switch *vifs, 5364 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5365 { 5366 int ret; 5367 5368 guard(mvm)(mvm); 5369 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5370 vifs[0].old_ctx, true); 5371 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5372 5373 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5374 if (ret) { 5375 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5376 goto out_reassign; 5377 } 5378 5379 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5380 vifs[0].new_ctx, true); 5381 if (ret) { 5382 IWL_ERR(mvm, 5383 "failed to assign new_ctx during channel switch\n"); 5384 goto out_remove; 5385 } 5386 5387 /* we don't support TDLS during DCM - can be caused by channel switch */ 5388 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5389 iwl_mvm_teardown_tdls_peers(mvm); 5390 5391 return 0; 5392 5393 out_remove: 5394 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5395 5396 out_reassign: 5397 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5398 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5399 goto out_restart; 5400 } 5401 5402 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5403 vifs[0].old_ctx, true)) { 5404 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5405 goto out_restart; 5406 } 5407 5408 return ret; 5409 5410 out_restart: 5411 /* things keep failing, better restart the hw */ 5412 iwl_mvm_nic_restart(mvm, false); 5413 return ret; 5414 } 5415 5416 static int 5417 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5418 struct ieee80211_vif_chanctx_switch *vifs, 5419 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5420 { 5421 int ret; 5422 5423 guard(mvm)(mvm); 5424 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5425 vifs[0].old_ctx, true); 5426 5427 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5428 vifs[0].new_ctx, true); 5429 if (ret) { 5430 IWL_ERR(mvm, 5431 "failed to assign new_ctx during channel switch\n"); 5432 goto out_reassign; 5433 } 5434 5435 return 0; 5436 5437 out_reassign: 5438 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5439 vifs[0].old_ctx, true)) { 5440 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5441 goto out_restart; 5442 } 5443 5444 return ret; 5445 5446 out_restart: 5447 /* things keep failing, better restart the hw */ 5448 iwl_mvm_nic_restart(mvm, false); 5449 return ret; 5450 } 5451 5452 /* Execute the common part for both MLD and non-MLD modes */ 5453 int 5454 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5455 struct ieee80211_vif_chanctx_switch *vifs, 5456 int n_vifs, 5457 enum ieee80211_chanctx_switch_mode mode, 5458 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5459 { 5460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5461 int ret; 5462 5463 /* we only support a single-vif right now */ 5464 if (n_vifs > 1) 5465 return -EOPNOTSUPP; 5466 5467 switch (mode) { 5468 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5469 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5470 break; 5471 case CHANCTX_SWMODE_REASSIGN_VIF: 5472 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5473 break; 5474 default: 5475 ret = -EOPNOTSUPP; 5476 break; 5477 } 5478 5479 return ret; 5480 } 5481 5482 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5483 struct ieee80211_vif_chanctx_switch *vifs, 5484 int n_vifs, 5485 enum ieee80211_chanctx_switch_mode mode) 5486 { 5487 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5488 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5489 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5490 }; 5491 5492 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5493 } 5494 5495 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5496 { 5497 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5498 5499 return mvm->ibss_manager; 5500 } 5501 5502 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5503 bool set) 5504 { 5505 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5506 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5507 5508 if (!mvm_sta || !mvm_sta->vif) { 5509 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5510 return -EINVAL; 5511 } 5512 5513 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5514 &mvm_sta->vif->bss_conf); 5515 } 5516 5517 #ifdef CONFIG_NL80211_TESTMODE 5518 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5519 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5520 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5521 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5522 }; 5523 5524 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5525 struct ieee80211_vif *vif, 5526 void *data, int len) 5527 { 5528 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5529 int err; 5530 u32 noa_duration; 5531 5532 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5533 iwl_mvm_tm_policy, NULL); 5534 if (err) 5535 return err; 5536 5537 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5538 return -EINVAL; 5539 5540 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5541 case IWL_MVM_TM_CMD_SET_NOA: 5542 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5543 !vif->bss_conf.enable_beacon || 5544 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5545 return -EINVAL; 5546 5547 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5548 if (noa_duration >= vif->bss_conf.beacon_int) 5549 return -EINVAL; 5550 5551 mvm->noa_duration = noa_duration; 5552 mvm->noa_vif = vif; 5553 5554 return iwl_mvm_update_quotas(mvm, true, NULL); 5555 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5556 /* must be associated client vif - ignore authorized */ 5557 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5558 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5559 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5560 return -EINVAL; 5561 5562 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5563 return iwl_mvm_enable_beacon_filter(mvm, vif); 5564 return iwl_mvm_disable_beacon_filter(mvm, vif); 5565 } 5566 5567 return -EOPNOTSUPP; 5568 } 5569 5570 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5571 struct ieee80211_vif *vif, 5572 void *data, int len) 5573 { 5574 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5575 5576 guard(mvm)(mvm); 5577 return __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5578 } 5579 #endif 5580 5581 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5582 struct ieee80211_channel_switch *chsw) 5583 { 5584 /* By implementing this operation, we prevent mac80211 from 5585 * starting its own channel switch timer, so that we can call 5586 * ieee80211_chswitch_done() ourselves at the right time 5587 * (which is when the absence time event starts). 5588 */ 5589 5590 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5591 "dummy channel switch op\n"); 5592 } 5593 5594 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5595 struct ieee80211_vif *vif, 5596 struct ieee80211_channel_switch *chsw) 5597 { 5598 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5599 struct iwl_chan_switch_te_cmd cmd = { 5600 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5601 mvmvif->color)), 5602 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5603 .tsf = cpu_to_le32(chsw->timestamp), 5604 .cs_count = chsw->count, 5605 .cs_mode = chsw->block_tx, 5606 }; 5607 5608 lockdep_assert_held(&mvm->mutex); 5609 5610 if (chsw->delay) 5611 cmd.cs_delayed_bcn_count = 5612 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5613 5614 return iwl_mvm_send_cmd_pdu(mvm, 5615 WIDE_ID(MAC_CONF_GROUP, 5616 CHANNEL_SWITCH_TIME_EVENT_CMD), 5617 0, sizeof(cmd), &cmd); 5618 } 5619 5620 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5621 struct ieee80211_vif *vif, 5622 struct ieee80211_channel_switch *chsw) 5623 { 5624 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5625 u32 apply_time; 5626 5627 /* Schedule the time event to a bit before beacon 1, 5628 * to make sure we're in the new channel when the 5629 * GO/AP arrives. In case count <= 1 immediately schedule the 5630 * TE (this might result with some packet loss or connection 5631 * loss). 5632 */ 5633 if (chsw->count <= 1) 5634 apply_time = 0; 5635 else 5636 apply_time = chsw->device_timestamp + 5637 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5638 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5639 5640 if (chsw->block_tx) 5641 iwl_mvm_csa_client_absent(mvm, vif); 5642 5643 if (mvmvif->bf_enabled) { 5644 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5645 5646 if (ret) 5647 return ret; 5648 } 5649 5650 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5651 apply_time); 5652 5653 return 0; 5654 } 5655 5656 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5657 { 5658 int i; 5659 5660 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5661 struct iwl_mvm_txq *mvmtxq = 5662 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5663 5664 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5665 } 5666 } 5667 5668 #define IWL_MAX_CSA_BLOCK_TX 1500 5669 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5670 struct ieee80211_vif *vif, 5671 struct ieee80211_channel_switch *chsw) 5672 { 5673 struct ieee80211_vif *csa_vif; 5674 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5675 struct iwl_mvm_txq *mvmtxq; 5676 int ret; 5677 5678 lockdep_assert_held(&mvm->mutex); 5679 5680 mvmvif->csa_failed = false; 5681 mvmvif->csa_blocks_tx = false; 5682 5683 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5684 chsw->chandef.center_freq1); 5685 5686 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5687 ieee80211_vif_to_wdev(vif), 5688 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5689 5690 switch (vif->type) { 5691 case NL80211_IFTYPE_AP: 5692 csa_vif = 5693 rcu_dereference_protected(mvm->csa_vif, 5694 lockdep_is_held(&mvm->mutex)); 5695 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5696 "Another CSA is already in progress")) 5697 return -EBUSY; 5698 5699 /* we still didn't unblock tx. prevent new CS meanwhile */ 5700 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5701 lockdep_is_held(&mvm->mutex))) 5702 return -EBUSY; 5703 5704 rcu_assign_pointer(mvm->csa_vif, vif); 5705 5706 if (WARN_ONCE(mvmvif->csa_countdown, 5707 "Previous CSA countdown didn't complete")) 5708 return -EBUSY; 5709 5710 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5711 5712 if (!chsw->block_tx) 5713 break; 5714 /* don't need blocking in driver otherwise - mac80211 will do */ 5715 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5716 break; 5717 5718 mvmvif->csa_blocks_tx = true; 5719 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5720 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5721 ieee80211_iterate_stations_atomic(mvm->hw, 5722 iwl_mvm_csa_block_txqs, 5723 NULL); 5724 break; 5725 case NL80211_IFTYPE_STATION: 5726 mvmvif->csa_blocks_tx = chsw->block_tx; 5727 5728 /* 5729 * In the new flow FW is in charge of timing the switch so there 5730 * is no need for all of this 5731 */ 5732 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5733 CHANNEL_SWITCH_ERROR_NOTIF, 5734 0)) 5735 break; 5736 5737 /* 5738 * We haven't configured the firmware to be associated yet since 5739 * we don't know the dtim period. In this case, the firmware can't 5740 * track the beacons. 5741 */ 5742 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5743 return -EBUSY; 5744 5745 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5746 hweight16(vif->valid_links) <= 1) 5747 schedule_delayed_work(&mvmvif->csa_work, 0); 5748 5749 if (chsw->block_tx) { 5750 /* 5751 * In case of undetermined / long time with immediate 5752 * quiet monitor status to gracefully disconnect 5753 */ 5754 if (!chsw->count || 5755 chsw->count * vif->bss_conf.beacon_int > 5756 IWL_MAX_CSA_BLOCK_TX) 5757 schedule_delayed_work(&mvmvif->csa_work, 5758 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5759 } 5760 5761 if (!fw_has_capa(&mvm->fw->ucode_capa, 5762 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5763 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5764 if (ret) 5765 return ret; 5766 } else { 5767 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5768 } 5769 5770 mvmvif->csa_count = chsw->count; 5771 mvmvif->csa_misbehave = false; 5772 break; 5773 default: 5774 break; 5775 } 5776 5777 mvmvif->ps_disabled = true; 5778 5779 ret = iwl_mvm_power_update_ps(mvm); 5780 if (ret) 5781 return ret; 5782 5783 /* we won't be on this channel any longer */ 5784 iwl_mvm_teardown_tdls_peers(mvm); 5785 5786 return ret; 5787 } 5788 5789 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5790 struct ieee80211_vif *vif, 5791 struct ieee80211_channel_switch *chsw) 5792 { 5793 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5794 5795 guard(mvm)(mvm); 5796 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5797 } 5798 5799 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5800 struct ieee80211_vif *vif, 5801 struct ieee80211_channel_switch *chsw) 5802 { 5803 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5804 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5805 struct iwl_chan_switch_te_cmd cmd = { 5806 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5807 mvmvif->color)), 5808 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5809 .tsf = cpu_to_le32(chsw->timestamp), 5810 .cs_count = chsw->count, 5811 .cs_mode = chsw->block_tx, 5812 }; 5813 5814 /* 5815 * In the new flow FW is in charge of timing the switch so there is no 5816 * need for all of this 5817 */ 5818 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5819 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5820 return; 5821 5822 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5823 return; 5824 5825 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5826 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5827 5828 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5829 if (mvmvif->csa_misbehave) { 5830 struct ieee80211_bss_conf *link_conf; 5831 5832 /* Second time, give up on this AP*/ 5833 5834 link_conf = wiphy_dereference(hw->wiphy, 5835 vif->link_conf[chsw->link_id]); 5836 if (WARN_ON(!link_conf)) 5837 return; 5838 5839 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5840 ieee80211_chswitch_done(vif, false, 0); 5841 mvmvif->csa_misbehave = false; 5842 return; 5843 } 5844 mvmvif->csa_misbehave = true; 5845 } 5846 mvmvif->csa_count = chsw->count; 5847 5848 guard(mvm)(mvm); 5849 if (mvmvif->csa_failed) 5850 return; 5851 5852 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5853 WIDE_ID(MAC_CONF_GROUP, 5854 CHANNEL_SWITCH_TIME_EVENT_CMD), 5855 0, sizeof(cmd), &cmd)); 5856 } 5857 5858 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5859 { 5860 int i; 5861 5862 if (!iwl_mvm_has_new_tx_api(mvm)) { 5863 /* we can't ask the firmware anything if it is dead */ 5864 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5865 &mvm->status)) 5866 return; 5867 if (drop) { 5868 guard(mvm)(mvm); 5869 iwl_mvm_flush_tx_path(mvm, 5870 iwl_mvm_flushable_queues(mvm) & queues); 5871 } else { 5872 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5873 } 5874 return; 5875 } 5876 5877 guard(mvm)(mvm); 5878 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5879 struct ieee80211_sta *sta; 5880 5881 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5882 lockdep_is_held(&mvm->mutex)); 5883 if (IS_ERR_OR_NULL(sta)) 5884 continue; 5885 5886 if (drop) 5887 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5888 else 5889 iwl_mvm_wait_sta_queues_empty(mvm, 5890 iwl_mvm_sta_from_mac80211(sta)); 5891 } 5892 } 5893 5894 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5895 u32 queues, bool drop) 5896 { 5897 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5898 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5899 struct iwl_mvm_sta *mvmsta; 5900 struct ieee80211_sta *sta; 5901 bool ap_sta_done = false; 5902 int i; 5903 u32 msk = 0; 5904 5905 if (!vif) { 5906 iwl_mvm_flush_no_vif(mvm, queues, drop); 5907 return; 5908 } 5909 5910 if (!drop && hweight16(vif->active_links) <= 1) { 5911 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5912 struct ieee80211_bss_conf *link_conf; 5913 5914 link_conf = wiphy_dereference(hw->wiphy, 5915 vif->link_conf[link_id]); 5916 if (WARN_ON(!link_conf)) 5917 return; 5918 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5919 drop = true; 5920 } 5921 5922 /* Make sure we're done with the deferred traffic before flushing */ 5923 flush_work(&mvm->add_stream_wk); 5924 5925 mutex_lock(&mvm->mutex); 5926 5927 /* flush the AP-station and all TDLS peers */ 5928 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5929 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5930 lockdep_is_held(&mvm->mutex)); 5931 if (IS_ERR_OR_NULL(sta)) 5932 continue; 5933 5934 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5935 if (mvmsta->vif != vif) 5936 continue; 5937 5938 if (sta == mvmvif->ap_sta) { 5939 if (ap_sta_done) 5940 continue; 5941 ap_sta_done = true; 5942 } 5943 5944 if (drop) { 5945 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5946 mvmsta->tfd_queue_msk)) 5947 IWL_ERR(mvm, "flush request fail\n"); 5948 } else { 5949 if (iwl_mvm_has_new_tx_api(mvm)) 5950 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5951 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5952 msk |= mvmsta->tfd_queue_msk; 5953 } 5954 } 5955 5956 mutex_unlock(&mvm->mutex); 5957 5958 /* this can take a while, and we may need/want other operations 5959 * to succeed while doing this, so do it without the mutex held 5960 * If the firmware is dead, this can't work... 5961 */ 5962 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5963 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5964 &mvm->status)) 5965 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5966 } 5967 5968 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5969 struct ieee80211_sta *sta) 5970 { 5971 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5972 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5973 struct iwl_mvm_link_sta *mvm_link_sta; 5974 struct ieee80211_link_sta *link_sta; 5975 int link_id; 5976 5977 guard(mvm)(mvm); 5978 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5979 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5980 lockdep_is_held(&mvm->mutex)); 5981 if (!mvm_link_sta) 5982 continue; 5983 5984 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5985 mvmsta->tfd_queue_msk)) 5986 IWL_ERR(mvm, "flush request fail\n"); 5987 } 5988 } 5989 5990 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 5991 struct survey_info *survey) 5992 { 5993 int chan_idx; 5994 enum nl80211_band band; 5995 int ret; 5996 5997 mutex_lock(&mvm->mutex); 5998 5999 if (!mvm->acs_survey) { 6000 ret = -ENOENT; 6001 goto out; 6002 } 6003 6004 /* Find and return the next entry that has a non-zero active time */ 6005 for (band = 0; band < NUM_NL80211_BANDS; band++) { 6006 struct ieee80211_supported_band *sband = 6007 mvm->hw->wiphy->bands[band]; 6008 6009 if (!sband) 6010 continue; 6011 6012 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 6013 struct iwl_mvm_acs_survey_channel *info = 6014 &mvm->acs_survey->bands[band][chan_idx]; 6015 6016 if (!info->time) 6017 continue; 6018 6019 /* Found (the next) channel to report */ 6020 survey->channel = &sband->channels[chan_idx]; 6021 survey->filled = SURVEY_INFO_TIME | 6022 SURVEY_INFO_TIME_BUSY | 6023 SURVEY_INFO_TIME_RX | 6024 SURVEY_INFO_TIME_TX; 6025 survey->time = info->time; 6026 survey->time_busy = info->time_busy; 6027 survey->time_rx = info->time_rx; 6028 survey->time_tx = info->time_tx; 6029 survey->noise = info->noise; 6030 if (survey->noise < 0) 6031 survey->filled |= SURVEY_INFO_NOISE_DBM; 6032 6033 /* Clear time so that channel is only reported once */ 6034 info->time = 0; 6035 6036 ret = 0; 6037 goto out; 6038 } 6039 } 6040 6041 ret = -ENOENT; 6042 6043 out: 6044 mutex_unlock(&mvm->mutex); 6045 6046 return ret; 6047 } 6048 6049 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 6050 struct survey_info *survey) 6051 { 6052 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6053 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 6054 WIDE_ID(SYSTEM_GROUP, 6055 SYSTEM_STATISTICS_CMD), 6056 IWL_FW_CMD_VER_UNKNOWN); 6057 6058 memset(survey, 0, sizeof(*survey)); 6059 6060 if (!fw_has_capa(&mvm->fw->ucode_capa, 6061 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 6062 return -ENOENT; 6063 6064 /* 6065 * Return the beacon stats at index zero and pass on following indices 6066 * to the function returning the full survey, most likely for ACS 6067 * (Automatic Channel Selection). 6068 */ 6069 if (idx > 0) 6070 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 6071 6072 guard(mvm)(mvm); 6073 6074 if (iwl_mvm_firmware_running(mvm)) { 6075 int ret = iwl_mvm_request_statistics(mvm, false); 6076 6077 if (ret) 6078 return ret; 6079 } 6080 6081 survey->filled = SURVEY_INFO_TIME_RX | 6082 SURVEY_INFO_TIME_TX; 6083 6084 survey->time_rx = mvm->accu_radio_stats.rx_time + 6085 mvm->radio_stats.rx_time; 6086 do_div(survey->time_rx, USEC_PER_MSEC); 6087 6088 survey->time_tx = mvm->accu_radio_stats.tx_time + 6089 mvm->radio_stats.tx_time; 6090 do_div(survey->time_tx, USEC_PER_MSEC); 6091 6092 /* the new fw api doesn't support the following fields */ 6093 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 6094 return 0; 6095 6096 survey->filled |= SURVEY_INFO_TIME | 6097 SURVEY_INFO_TIME_SCAN; 6098 survey->time = mvm->accu_radio_stats.on_time_rf + 6099 mvm->radio_stats.on_time_rf; 6100 do_div(survey->time, USEC_PER_MSEC); 6101 6102 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 6103 mvm->radio_stats.on_time_scan; 6104 do_div(survey->time_scan, USEC_PER_MSEC); 6105 6106 return 0; 6107 } 6108 6109 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 6110 { 6111 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 6112 u32 gi_ltf; 6113 6114 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 6115 case RATE_MCS_CHAN_WIDTH_20: 6116 rinfo->bw = RATE_INFO_BW_20; 6117 break; 6118 case RATE_MCS_CHAN_WIDTH_40: 6119 rinfo->bw = RATE_INFO_BW_40; 6120 break; 6121 case RATE_MCS_CHAN_WIDTH_80: 6122 rinfo->bw = RATE_INFO_BW_80; 6123 break; 6124 case RATE_MCS_CHAN_WIDTH_160: 6125 rinfo->bw = RATE_INFO_BW_160; 6126 break; 6127 case RATE_MCS_CHAN_WIDTH_320: 6128 rinfo->bw = RATE_INFO_BW_320; 6129 break; 6130 } 6131 6132 if (format == RATE_MCS_CCK_MSK || 6133 format == RATE_MCS_LEGACY_OFDM_MSK) { 6134 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 6135 6136 /* add the offset needed to get to the legacy ofdm indices */ 6137 if (format == RATE_MCS_LEGACY_OFDM_MSK) 6138 rate += IWL_FIRST_OFDM_RATE; 6139 6140 switch (rate) { 6141 case IWL_RATE_1M_INDEX: 6142 rinfo->legacy = 10; 6143 break; 6144 case IWL_RATE_2M_INDEX: 6145 rinfo->legacy = 20; 6146 break; 6147 case IWL_RATE_5M_INDEX: 6148 rinfo->legacy = 55; 6149 break; 6150 case IWL_RATE_11M_INDEX: 6151 rinfo->legacy = 110; 6152 break; 6153 case IWL_RATE_6M_INDEX: 6154 rinfo->legacy = 60; 6155 break; 6156 case IWL_RATE_9M_INDEX: 6157 rinfo->legacy = 90; 6158 break; 6159 case IWL_RATE_12M_INDEX: 6160 rinfo->legacy = 120; 6161 break; 6162 case IWL_RATE_18M_INDEX: 6163 rinfo->legacy = 180; 6164 break; 6165 case IWL_RATE_24M_INDEX: 6166 rinfo->legacy = 240; 6167 break; 6168 case IWL_RATE_36M_INDEX: 6169 rinfo->legacy = 360; 6170 break; 6171 case IWL_RATE_48M_INDEX: 6172 rinfo->legacy = 480; 6173 break; 6174 case IWL_RATE_54M_INDEX: 6175 rinfo->legacy = 540; 6176 } 6177 return; 6178 } 6179 6180 rinfo->nss = u32_get_bits(rate_n_flags, 6181 RATE_MCS_NSS_MSK) + 1; 6182 rinfo->mcs = format == RATE_MCS_HT_MSK ? 6183 RATE_HT_MCS_INDEX(rate_n_flags) : 6184 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6185 6186 if (rate_n_flags & RATE_MCS_SGI_MSK) 6187 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6188 6189 switch (format) { 6190 case RATE_MCS_EHT_MSK: 6191 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6192 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6193 break; 6194 case RATE_MCS_HE_MSK: 6195 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6196 6197 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6198 6199 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6200 rinfo->bw = RATE_INFO_BW_HE_RU; 6201 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6202 } 6203 6204 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6205 case RATE_MCS_HE_TYPE_SU: 6206 case RATE_MCS_HE_TYPE_EXT_SU: 6207 if (gi_ltf == 0 || gi_ltf == 1) 6208 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6209 else if (gi_ltf == 2) 6210 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6211 else if (gi_ltf == 3) 6212 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6213 else 6214 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6215 break; 6216 case RATE_MCS_HE_TYPE_MU: 6217 if (gi_ltf == 0 || gi_ltf == 1) 6218 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6219 else if (gi_ltf == 2) 6220 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6221 else 6222 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6223 break; 6224 case RATE_MCS_HE_TYPE_TRIG: 6225 if (gi_ltf == 0 || gi_ltf == 1) 6226 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6227 else 6228 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6229 break; 6230 } 6231 6232 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6233 rinfo->he_dcm = 1; 6234 break; 6235 case RATE_MCS_HT_MSK: 6236 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6237 break; 6238 case RATE_MCS_VHT_MSK: 6239 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6240 break; 6241 } 6242 } 6243 6244 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6245 struct ieee80211_vif *vif, 6246 struct ieee80211_sta *sta, 6247 struct station_info *sinfo) 6248 { 6249 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6250 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6251 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6252 int i; 6253 6254 if (mvmsta->deflink.avg_energy) { 6255 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6256 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6257 } 6258 6259 if (iwl_mvm_has_tlc_offload(mvm)) { 6260 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6261 6262 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6263 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6264 } 6265 6266 /* if beacon filtering isn't on mac80211 does it anyway */ 6267 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6268 return; 6269 6270 if (!vif->cfg.assoc) 6271 return; 6272 6273 guard(mvm)(mvm); 6274 6275 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 6276 return; 6277 6278 if (iwl_mvm_request_statistics(mvm, false)) 6279 return; 6280 6281 sinfo->rx_beacon = 0; 6282 for_each_mvm_vif_valid_link(mvmvif, i) 6283 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6284 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6285 6286 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6287 if (mvmvif->deflink.beacon_stats.avg_signal) { 6288 /* firmware only reports a value after RXing a few beacons */ 6289 sinfo->rx_beacon_signal_avg = 6290 mvmvif->deflink.beacon_stats.avg_signal; 6291 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6292 } 6293 } 6294 6295 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6296 struct ieee80211_vif *vif, 6297 const struct ieee80211_mlme_event *mlme) 6298 { 6299 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6300 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6301 iwl_dbg_tlv_time_point(&mvm->fwrt, 6302 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6303 NULL); 6304 return; 6305 } 6306 6307 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6308 iwl_dbg_tlv_time_point(&mvm->fwrt, 6309 IWL_FW_INI_TIME_POINT_DEASSOC, 6310 NULL); 6311 return; 6312 } 6313 } 6314 6315 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6316 struct ieee80211_vif *vif, 6317 const struct ieee80211_event *event) 6318 { 6319 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6320 do { \ 6321 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6322 break; \ 6323 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6324 } while (0) 6325 6326 struct iwl_fw_dbg_trigger_tlv *trig; 6327 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6328 6329 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6330 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6331 return; 6332 } 6333 6334 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6335 FW_DBG_TRIGGER_MLME); 6336 if (!trig) 6337 return; 6338 6339 trig_mlme = (void *)trig->data; 6340 6341 if (event->u.mlme.data == ASSOC_EVENT) { 6342 if (event->u.mlme.status == MLME_DENIED) 6343 CHECK_MLME_TRIGGER(stop_assoc_denied, 6344 "DENIED ASSOC: reason %d", 6345 event->u.mlme.reason); 6346 else if (event->u.mlme.status == MLME_TIMEOUT) 6347 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6348 "ASSOC TIMEOUT"); 6349 } else if (event->u.mlme.data == AUTH_EVENT) { 6350 if (event->u.mlme.status == MLME_DENIED) 6351 CHECK_MLME_TRIGGER(stop_auth_denied, 6352 "DENIED AUTH: reason %d", 6353 event->u.mlme.reason); 6354 else if (event->u.mlme.status == MLME_TIMEOUT) 6355 CHECK_MLME_TRIGGER(stop_auth_timeout, 6356 "AUTH TIMEOUT"); 6357 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6358 CHECK_MLME_TRIGGER(stop_rx_deauth, 6359 "DEAUTH RX %d", event->u.mlme.reason); 6360 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6361 CHECK_MLME_TRIGGER(stop_tx_deauth, 6362 "DEAUTH TX %d", event->u.mlme.reason); 6363 } 6364 #undef CHECK_MLME_TRIGGER 6365 } 6366 6367 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6368 struct ieee80211_vif *vif, 6369 const struct ieee80211_event *event) 6370 { 6371 struct iwl_fw_dbg_trigger_tlv *trig; 6372 struct iwl_fw_dbg_trigger_ba *ba_trig; 6373 6374 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6375 FW_DBG_TRIGGER_BA); 6376 if (!trig) 6377 return; 6378 6379 ba_trig = (void *)trig->data; 6380 6381 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6382 return; 6383 6384 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6385 "BAR received from %pM, tid %d, ssn %d", 6386 event->u.ba.sta->addr, event->u.ba.tid, 6387 event->u.ba.ssn); 6388 } 6389 6390 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6391 struct ieee80211_vif *vif, 6392 const struct ieee80211_event *event) 6393 { 6394 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6395 6396 switch (event->type) { 6397 case MLME_EVENT: 6398 iwl_mvm_event_mlme_callback(mvm, vif, event); 6399 break; 6400 case BAR_RX_EVENT: 6401 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6402 break; 6403 case BA_FRAME_TIMEOUT: 6404 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6405 event->u.ba.tid); 6406 break; 6407 default: 6408 break; 6409 } 6410 } 6411 6412 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6413 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6414 enum iwl_mvm_rxq_notif_type type, 6415 bool sync, 6416 const void *data, u32 size) 6417 { 6418 struct { 6419 struct iwl_rxq_sync_cmd cmd; 6420 struct iwl_mvm_internal_rxq_notif notif; 6421 } __packed cmd = { 6422 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6423 .cmd.count = 6424 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6425 size), 6426 .notif.type = type, 6427 .notif.sync = sync, 6428 }; 6429 struct iwl_host_cmd hcmd = { 6430 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6431 .data[0] = &cmd, 6432 .len[0] = sizeof(cmd), 6433 .data[1] = data, 6434 .len[1] = size, 6435 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6436 }; 6437 int ret; 6438 6439 /* size must be a multiple of DWORD */ 6440 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6441 return; 6442 6443 if (!iwl_mvm_has_new_rx_api(mvm)) 6444 return; 6445 6446 if (sync) { 6447 cmd.notif.cookie = mvm->queue_sync_cookie; 6448 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6449 } 6450 6451 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6452 if (ret) { 6453 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6454 goto out; 6455 } 6456 6457 if (sync) { 6458 lockdep_assert_held(&mvm->mutex); 6459 ret = wait_event_timeout(mvm->rx_sync_waitq, 6460 READ_ONCE(mvm->queue_sync_state) == 0, 6461 SYNC_RX_QUEUE_TIMEOUT); 6462 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6463 mvm->queue_sync_state, 6464 mvm->queue_sync_cookie); 6465 } 6466 6467 out: 6468 if (sync) { 6469 mvm->queue_sync_state = 0; 6470 mvm->queue_sync_cookie++; 6471 } 6472 } 6473 6474 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6475 { 6476 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6477 6478 guard(mvm)(mvm); 6479 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6480 } 6481 6482 int 6483 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6484 struct ieee80211_vif *vif, 6485 struct cfg80211_ftm_responder_stats *stats) 6486 { 6487 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6488 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6489 6490 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6491 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6492 return -EINVAL; 6493 6494 mutex_lock(&mvm->mutex); 6495 *stats = mvm->ftm_resp_stats; 6496 mutex_unlock(&mvm->mutex); 6497 6498 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6499 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6500 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6501 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6502 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6503 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6504 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6505 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6506 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6507 6508 return 0; 6509 } 6510 6511 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6512 struct cfg80211_pmsr_request *request) 6513 { 6514 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6515 6516 guard(mvm)(mvm); 6517 return iwl_mvm_ftm_start(mvm, vif, request); 6518 } 6519 6520 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6521 struct cfg80211_pmsr_request *request) 6522 { 6523 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6524 6525 guard(mvm)(mvm); 6526 iwl_mvm_ftm_abort(mvm, request); 6527 } 6528 6529 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6530 { 6531 u8 protocol = ip_hdr(skb)->protocol; 6532 6533 if (!IS_ENABLED(CONFIG_INET)) 6534 return false; 6535 6536 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6537 } 6538 6539 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6540 struct sk_buff *head, 6541 struct sk_buff *skb) 6542 { 6543 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6544 6545 /* For now don't aggregate IPv6 in AMSDU */ 6546 if (skb->protocol != htons(ETH_P_IP)) 6547 return false; 6548 6549 if (!iwl_mvm_is_csum_supported(mvm)) 6550 return true; 6551 6552 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6553 } 6554 6555 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6556 struct ieee80211_vif *vif, 6557 struct cfg80211_set_hw_timestamp *hwts) 6558 { 6559 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6560 u32 protocols = 0; 6561 6562 /* HW timestamping is only supported for a specific station */ 6563 if (!hwts->macaddr) 6564 return -EOPNOTSUPP; 6565 6566 if (hwts->enable) 6567 protocols = 6568 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6569 6570 guard(mvm)(mvm); 6571 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6572 } 6573 6574 const struct ieee80211_ops iwl_mvm_hw_ops = { 6575 .tx = iwl_mvm_mac_tx, 6576 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6577 .ampdu_action = iwl_mvm_mac_ampdu_action, 6578 .get_antenna = iwl_mvm_op_get_antenna, 6579 .set_antenna = iwl_mvm_op_set_antenna, 6580 .start = iwl_mvm_mac_start, 6581 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6582 .stop = iwl_mvm_mac_stop, 6583 .add_interface = iwl_mvm_mac_add_interface, 6584 .remove_interface = iwl_mvm_mac_remove_interface, 6585 .config = iwl_mvm_mac_config, 6586 .prepare_multicast = iwl_mvm_prepare_multicast, 6587 .configure_filter = iwl_mvm_configure_filter, 6588 .config_iface_filter = iwl_mvm_config_iface_filter, 6589 .bss_info_changed = iwl_mvm_bss_info_changed, 6590 .hw_scan = iwl_mvm_mac_hw_scan, 6591 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6592 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6593 .sta_state = iwl_mvm_mac_sta_state, 6594 .sta_notify = iwl_mvm_mac_sta_notify, 6595 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6596 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6597 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6598 .link_sta_rc_update = iwl_mvm_sta_rc_update, 6599 .conf_tx = iwl_mvm_mac_conf_tx, 6600 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6601 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6602 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6603 .flush = iwl_mvm_mac_flush, 6604 .flush_sta = iwl_mvm_mac_flush_sta, 6605 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6606 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6607 .set_key = iwl_mvm_mac_set_key, 6608 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6609 .remain_on_channel = iwl_mvm_roc, 6610 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6611 .add_chanctx = iwl_mvm_add_chanctx, 6612 .remove_chanctx = iwl_mvm_remove_chanctx, 6613 .change_chanctx = iwl_mvm_change_chanctx, 6614 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6615 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6616 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6617 6618 .start_ap = iwl_mvm_start_ap, 6619 .stop_ap = iwl_mvm_stop_ap, 6620 .join_ibss = iwl_mvm_start_ibss, 6621 .leave_ibss = iwl_mvm_stop_ibss, 6622 6623 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6624 6625 .set_tim = iwl_mvm_set_tim, 6626 6627 .channel_switch = iwl_mvm_channel_switch, 6628 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6629 .post_channel_switch = iwl_mvm_post_channel_switch, 6630 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6631 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6632 6633 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6634 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6635 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6636 6637 .event_callback = iwl_mvm_mac_event_callback, 6638 6639 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6640 6641 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6642 6643 #ifdef CONFIG_PM_SLEEP 6644 /* look at d3.c */ 6645 .suspend = iwl_mvm_suspend, 6646 .resume = iwl_mvm_resume, 6647 .set_wakeup = iwl_mvm_set_wakeup, 6648 .set_rekey_data = iwl_mvm_set_rekey_data, 6649 #if IS_ENABLED(CONFIG_IPV6) 6650 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6651 #endif 6652 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6653 #endif 6654 .get_survey = iwl_mvm_mac_get_survey, 6655 .sta_statistics = iwl_mvm_mac_sta_statistics, 6656 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6657 .start_pmsr = iwl_mvm_start_pmsr, 6658 .abort_pmsr = iwl_mvm_abort_pmsr, 6659 6660 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6661 #ifdef CONFIG_IWLWIFI_DEBUGFS 6662 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6663 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6664 #endif 6665 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6666 }; 6667