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_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 iwl_mvm_mei_device_state(mvm, true); 1241 ret = iwl_mvm_fast_resume(mvm); 1242 if (ret) { 1243 iwl_mvm_stop_device(mvm); 1244 /* iwl_mvm_up() will be called further down */ 1245 } else { 1246 /* 1247 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon 1248 * mac_down() so that debugfs will stop honoring 1249 * requests after we flush all the workers. 1250 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again 1251 * now that we are back. This is a bit abusing the 1252 * flag since the firmware wasn't really ever stopped, 1253 * but this still serves the purpose. 1254 */ 1255 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1256 } 1257 } 1258 #endif /* CONFIG_PM_SLEEP */ 1259 1260 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1261 /* 1262 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1263 * so later code will - from now on - see that we're doing it. 1264 */ 1265 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1266 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1267 /* Clean up some internal and mac80211 state on restart */ 1268 iwl_mvm_restart_cleanup(mvm); 1269 } 1270 1271 /* we also want to load the firmware if fast_resume failed */ 1272 if (!fast_resume || ret) 1273 ret = iwl_mvm_up(mvm); 1274 1275 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1276 NULL); 1277 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1278 NULL); 1279 1280 mvm->last_reset_or_resume_time_jiffies = jiffies; 1281 1282 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1283 /* Something went wrong - we need to finish some cleanup 1284 * that normally iwl_mvm_mac_restart_complete() below 1285 * would do. 1286 */ 1287 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1288 } 1289 1290 return ret; 1291 } 1292 1293 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1294 { 1295 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1296 int ret; 1297 int retry, max_retry = 0; 1298 1299 mutex_lock(&mvm->mutex); 1300 1301 /* we are starting the mac not in error flow, and restart is enabled */ 1302 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1303 iwlwifi_mod_params.fw_restart) { 1304 max_retry = IWL_MAX_INIT_RETRY; 1305 /* 1306 * This will prevent mac80211 recovery flows to trigger during 1307 * init failures 1308 */ 1309 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1310 } 1311 1312 for (retry = 0; retry <= max_retry; retry++) { 1313 ret = __iwl_mvm_mac_start(mvm); 1314 if (!ret) 1315 break; 1316 1317 IWL_ERR(mvm, "mac start retry %d\n", retry); 1318 } 1319 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1320 1321 mutex_unlock(&mvm->mutex); 1322 1323 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1324 1325 return ret; 1326 } 1327 1328 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1329 { 1330 int ret; 1331 1332 guard(mvm)(mvm); 1333 1334 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1335 1336 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1337 if (ret) 1338 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1339 ret); 1340 1341 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1342 1343 /* 1344 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1345 * of packets the FW sent out, so we must reconnect. 1346 */ 1347 iwl_mvm_teardown_tdls_peers(mvm); 1348 1349 IWL_INFO(mvm, "restart completed\n"); 1350 } 1351 1352 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1353 enum ieee80211_reconfig_type reconfig_type) 1354 { 1355 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1356 1357 switch (reconfig_type) { 1358 case IEEE80211_RECONFIG_TYPE_RESTART: 1359 iwl_mvm_restart_complete(mvm); 1360 break; 1361 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1362 break; 1363 } 1364 } 1365 1366 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend) 1367 { 1368 lockdep_assert_held(&mvm->mutex); 1369 1370 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1371 1372 /* firmware counters are obviously reset now, but we shouldn't 1373 * partially track so also clear the fw_reset_accu counters. 1374 */ 1375 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1376 1377 /* async_handlers_wk is now blocked */ 1378 1379 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1380 iwl_mvm_rm_aux_sta(mvm); 1381 1382 if (suspend && 1383 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 1384 iwl_mvm_fast_suspend(mvm); 1385 /* From this point on, we won't touch the device */ 1386 iwl_mvm_mei_device_state(mvm, false); 1387 } else { 1388 iwl_mvm_stop_device(mvm); 1389 } 1390 1391 iwl_mvm_async_handlers_purge(mvm); 1392 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1393 1394 /* 1395 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1396 * hw (as restart_complete() won't be called in this case) and mac80211 1397 * won't execute the restart. 1398 * But make sure to cleanup interfaces that have gone down before/during 1399 * HW restart was requested. 1400 */ 1401 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1402 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1403 &mvm->status)) 1404 ieee80211_iterate_interfaces(mvm->hw, 0, 1405 iwl_mvm_cleanup_iterator, mvm); 1406 1407 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1408 * make sure there's nothing left there and warn if any is found. 1409 */ 1410 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1411 int i; 1412 1413 for (i = 0; i < mvm->max_scans; i++) { 1414 if (WARN_ONCE(mvm->scan_uid_status[i], 1415 "UMAC scan UID %d status was not cleaned\n", 1416 i)) 1417 mvm->scan_uid_status[i] = 0; 1418 } 1419 } 1420 } 1421 1422 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend) 1423 { 1424 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1425 1426 /* Stop internal MLO scan, if running */ 1427 mutex_lock(&mvm->mutex); 1428 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1429 mutex_unlock(&mvm->mutex); 1430 1431 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk); 1432 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1433 flush_work(&mvm->async_handlers_wk); 1434 flush_work(&mvm->add_stream_wk); 1435 1436 /* 1437 * Lock and clear the firmware running bit here already, so that 1438 * new commands coming in elsewhere, e.g. from debugfs, will not 1439 * be able to proceed. This is important here because one of those 1440 * debugfs files causes the firmware dump to be triggered, and if we 1441 * don't stop debugfs accesses before canceling that it could be 1442 * retriggered after we flush it but before we've cleared the bit. 1443 */ 1444 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1445 1446 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1447 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1448 1449 /* 1450 * The work item could be running or queued if the 1451 * ROC time event stops just as we get here. 1452 */ 1453 flush_work(&mvm->roc_done_wk); 1454 1455 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1456 1457 mutex_lock(&mvm->mutex); 1458 __iwl_mvm_mac_stop(mvm, suspend); 1459 mutex_unlock(&mvm->mutex); 1460 1461 /* 1462 * The worker might have been waiting for the mutex, let it run and 1463 * discover that its list is now empty. 1464 */ 1465 cancel_work_sync(&mvm->async_handlers_wk); 1466 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1467 } 1468 1469 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1470 { 1471 u16 i; 1472 1473 lockdep_assert_held(&mvm->mutex); 1474 1475 for (i = 0; i < NUM_PHY_CTX; i++) 1476 if (!mvm->phy_ctxts[i].ref) 1477 return &mvm->phy_ctxts[i]; 1478 1479 IWL_ERR(mvm, "No available PHY context\n"); 1480 return NULL; 1481 } 1482 1483 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, 1484 struct ieee80211_bss_conf *link_conf, 1485 s16 tx_power) 1486 { 1487 u32 cmd_id = REDUCE_TX_POWER_CMD; 1488 u32 mac_id = iwl_mvm_vif_from_mac80211(link_conf->vif)->id; 1489 int len; 1490 struct iwl_dev_tx_power_cmd_v3_v8 cmd = { 1491 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1492 .common.mac_context_id = cpu_to_le32(mac_id), 1493 }; 1494 struct iwl_dev_tx_power_cmd cmd_v9_v10; 1495 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3); 1496 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ? 1497 IWL_DEV_MAX_TX_POWER : 8 * tx_power; 1498 void *cmd_data = &cmd; 1499 1500 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power); 1501 1502 if (cmd_ver > 8) { 1503 /* Those fields sit on the same place for v9 and v10 */ 1504 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC); 1505 cmd_v9_v10.common.mac_context_id = cpu_to_le32(mac_id); 1506 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power); 1507 cmd_data = &cmd_v9_v10; 1508 } 1509 1510 if (cmd_ver == 10) 1511 len = sizeof(cmd_v9_v10.v10); 1512 else if (cmd_ver == 9) 1513 len = sizeof(cmd_v9_v10.v9); 1514 else if (cmd_ver == 8) 1515 len = sizeof(cmd.v8); 1516 else if (cmd_ver == 7) 1517 len = sizeof(cmd.v7); 1518 else if (cmd_ver == 6) 1519 len = sizeof(cmd.v6); 1520 else if (fw_has_api(&mvm->fw->ucode_capa, 1521 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1522 len = sizeof(cmd.v5); 1523 else if (fw_has_capa(&mvm->fw->ucode_capa, 1524 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1525 len = sizeof(cmd.v4); 1526 else 1527 len = sizeof(cmd.v3); 1528 1529 /* all structs have the same common part, add its length */ 1530 len += sizeof(cmd.common); 1531 1532 if (cmd_ver < 9) 1533 len += sizeof(cmd.per_band); 1534 1535 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data); 1536 1537 } 1538 1539 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1540 { 1541 struct ieee80211_hw *hw = data; 1542 int i; 1543 1544 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1545 struct iwl_mvm_txq *mvmtxq = 1546 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1547 1548 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1549 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1550 } 1551 } 1552 1553 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1554 struct ieee80211_vif *vif, 1555 struct ieee80211_bss_conf *link_conf) 1556 { 1557 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1559 int ret; 1560 1561 mutex_lock(&mvm->mutex); 1562 1563 if (vif->type == NL80211_IFTYPE_STATION) { 1564 struct iwl_mvm_sta *mvmsta; 1565 unsigned int link_id = link_conf->link_id; 1566 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1567 1568 mvmvif->csa_bcn_pending = false; 1569 mvmvif->csa_blocks_tx = false; 1570 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1571 1572 if (WARN_ON(!mvmsta)) { 1573 ret = -EIO; 1574 goto out_unlock; 1575 } 1576 1577 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1578 if (mvm->mld_api_is_used) 1579 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1580 else 1581 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1582 1583 if (!fw_has_capa(&mvm->fw->ucode_capa, 1584 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1585 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1586 if (ret) 1587 goto out_unlock; 1588 1589 iwl_mvm_stop_session_protection(mvm, vif); 1590 } 1591 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1592 struct iwl_mvm_txq *mvmtxq = 1593 iwl_mvm_txq_from_mac80211(vif->txq); 1594 1595 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1596 1597 local_bh_disable(); 1598 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1599 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1600 local_bh_enable(); 1601 1602 mvmvif->csa_blocks_tx = false; 1603 } 1604 1605 mvmvif->ps_disabled = false; 1606 1607 ret = iwl_mvm_power_update_ps(mvm); 1608 1609 out_unlock: 1610 if (mvmvif->csa_failed) 1611 ret = -EIO; 1612 mutex_unlock(&mvm->mutex); 1613 1614 return ret; 1615 } 1616 1617 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1618 struct ieee80211_vif *vif, 1619 struct ieee80211_bss_conf *link_conf) 1620 { 1621 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1622 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1623 struct iwl_chan_switch_te_cmd cmd = { 1624 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1625 mvmvif->color)), 1626 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1627 }; 1628 1629 /* 1630 * In the new flow since FW is in charge of the timing, 1631 * if driver has canceled the channel switch he will receive the 1632 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1633 */ 1634 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1635 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1636 return; 1637 1638 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1639 1640 mutex_lock(&mvm->mutex); 1641 if (!fw_has_capa(&mvm->fw->ucode_capa, 1642 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1643 iwl_mvm_remove_csa_period(mvm, vif); 1644 else 1645 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1646 WIDE_ID(MAC_CONF_GROUP, 1647 CHANNEL_SWITCH_TIME_EVENT_CMD), 1648 0, sizeof(cmd), &cmd)); 1649 mvmvif->csa_failed = true; 1650 mutex_unlock(&mvm->mutex); 1651 1652 /* If we're here, we can't support MLD */ 1653 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1654 } 1655 1656 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1657 { 1658 struct iwl_mvm_vif *mvmvif; 1659 struct ieee80211_vif *vif; 1660 1661 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1662 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1663 1664 /* Trigger disconnect (should clear the CSA state) */ 1665 ieee80211_chswitch_done(vif, false, 0); 1666 } 1667 1668 static u8 1669 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1670 { 1671 int data_start; 1672 int control_start; 1673 int bw; 1674 1675 if (chandef->width == NL80211_CHAN_WIDTH_320) 1676 bw = 320; 1677 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1678 bw = 160; 1679 else 1680 return 0; 1681 1682 /* data is bw wide so the start is half the width */ 1683 data_start = chandef->center_freq1 - bw / 2; 1684 /* control is 20Mhz width */ 1685 control_start = chandef->chan->center_freq - 10; 1686 1687 return (control_start - data_start) / 80; 1688 } 1689 1690 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1691 struct ieee80211_vif *vif) 1692 { 1693 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1694 int ret; 1695 1696 lockdep_assert_held(&mvm->mutex); 1697 1698 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1699 if (ret) { 1700 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1701 return ret; 1702 } 1703 1704 /* Only queue for this station is the mcast queue, 1705 * which shouldn't be in TFD mask anyway 1706 */ 1707 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1708 vif->type, 1709 IWL_STA_MULTICAST); 1710 } 1711 1712 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy, 1713 struct wiphy_work *wk) 1714 { 1715 struct iwl_mvm_vif *mvmvif = 1716 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work); 1717 struct iwl_mvm *mvm = mvmvif->mvm; 1718 struct ieee80211_vif *vif = 1719 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1720 1721 guard(mvm)(mvm); 1722 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION); 1723 } 1724 1725 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) 1726 { 1727 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif, 1728 mlo_int_scan_wk.work); 1729 struct ieee80211_vif *vif = 1730 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1731 1732 guard(mvm)(mvmvif->mvm); 1733 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif); 1734 } 1735 1736 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) 1737 { 1738 struct iwl_mvm_vif *mvmvif = 1739 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); 1740 struct iwl_mvm *mvm = mvmvif->mvm; 1741 struct ieee80211_vif *vif = 1742 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1743 1744 guard(mvm)(mvm); 1745 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); 1746 } 1747 1748 static void iwl_mvm_unblock_esr_tmp_non_bss(struct wiphy *wiphy, 1749 struct wiphy_work *wk) 1750 { 1751 struct iwl_mvm_vif *mvmvif = 1752 container_of(wk, struct iwl_mvm_vif, 1753 unblock_esr_tmp_non_bss_wk.work); 1754 struct iwl_mvm *mvm = mvmvif->mvm; 1755 struct ieee80211_vif *vif = 1756 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1757 1758 mutex_lock(&mvm->mutex); 1759 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TMP_NON_BSS); 1760 mutex_unlock(&mvm->mutex); 1761 } 1762 1763 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1764 { 1765 lockdep_assert_held(&mvm->mutex); 1766 1767 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1768 return; 1769 1770 INIT_DELAYED_WORK(&mvmvif->csa_work, 1771 iwl_mvm_channel_switch_disconnect_wk); 1772 1773 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk, 1774 iwl_mvm_prevent_esr_done_wk); 1775 1776 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, 1777 iwl_mvm_mlo_int_scan_wk); 1778 1779 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, 1780 iwl_mvm_unblock_esr_tpt); 1781 1782 wiphy_delayed_work_init(&mvmvif->unblock_esr_tmp_non_bss_wk, 1783 iwl_mvm_unblock_esr_tmp_non_bss); 1784 } 1785 1786 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1787 struct ieee80211_vif *vif) 1788 { 1789 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1790 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1791 int ret; 1792 int i; 1793 1794 mutex_lock(&mvm->mutex); 1795 1796 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1797 1798 mvmvif->mvm = mvm; 1799 1800 /* the first link always points to the default one */ 1801 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1802 mvmvif->deflink.active = 0; 1803 mvmvif->link[0] = &mvmvif->deflink; 1804 1805 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1806 if (ret) 1807 goto out; 1808 1809 /* 1810 * Not much to do here. The stack will not allow interface 1811 * types or combinations that we didn't advertise, so we 1812 * don't really have to check the types. 1813 */ 1814 1815 /* make sure that beacon statistics don't go backwards with FW reset */ 1816 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1817 for_each_mvm_vif_valid_link(mvmvif, i) 1818 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1819 mvmvif->link[i]->beacon_stats.num_beacons; 1820 1821 /* Allocate resources for the MAC context, and add it to the fw */ 1822 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1823 if (ret) 1824 goto out; 1825 1826 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1827 1828 /* Currently not much to do for NAN */ 1829 if (vif->type == NL80211_IFTYPE_NAN) { 1830 ret = 0; 1831 goto out; 1832 } 1833 1834 /* 1835 * The AP binding flow can be done only after the beacon 1836 * template is configured (which happens only in the mac80211 1837 * start_ap() flow), and adding the broadcast station can happen 1838 * only after the binding. 1839 * In addition, since modifying the MAC before adding a bcast 1840 * station is not allowed by the FW, delay the adding of MAC context to 1841 * the point where we can also add the bcast station. 1842 * In short: there's not much we can do at this point, other than 1843 * allocating resources :) 1844 */ 1845 if (vif->type == NL80211_IFTYPE_AP || 1846 vif->type == NL80211_IFTYPE_ADHOC) { 1847 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1848 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1849 ret = 0; 1850 goto out; 1851 } 1852 1853 mvmvif->features |= hw->netdev_features; 1854 1855 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1856 if (ret) 1857 goto out_unlock; 1858 1859 ret = iwl_mvm_power_update_mac(mvm); 1860 if (ret) 1861 goto out_remove_mac; 1862 1863 /* beacon filtering */ 1864 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1865 if (ret) 1866 goto out_remove_mac; 1867 1868 if (!mvm->bf_allowed_vif && 1869 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1870 mvm->bf_allowed_vif = mvmvif; 1871 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1872 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1873 } 1874 1875 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1876 mvm->p2p_device_vif = vif; 1877 1878 iwl_mvm_tcm_add_vif(mvm, vif); 1879 1880 if (vif->type == NL80211_IFTYPE_MONITOR) { 1881 mvm->monitor_on = true; 1882 mvm->monitor_p80 = 1883 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1884 } 1885 1886 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1887 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1888 1889 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1890 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1891 !mvm->csme_vif && mvm->mei_registered) { 1892 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1893 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1894 mvm->csme_vif = vif; 1895 } 1896 1897 out: 1898 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1899 vif->type == NL80211_IFTYPE_ADHOC)) 1900 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1901 1902 goto out_unlock; 1903 1904 out_remove_mac: 1905 mvmvif->deflink.phy_ctxt = NULL; 1906 iwl_mvm_mac_ctxt_remove(mvm, vif); 1907 out_unlock: 1908 mutex_unlock(&mvm->mutex); 1909 1910 return ret; 1911 } 1912 1913 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1914 struct ieee80211_vif *vif) 1915 { 1916 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1917 1918 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1919 /* 1920 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1921 * We assume here that all the packets sent to the OFFCHANNEL 1922 * queue are sent in ROC session. 1923 */ 1924 flush_work(&mvm->roc_done_wk); 1925 } 1926 1927 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1928 &mvmvif->prevent_esr_done_wk); 1929 1930 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1931 &mvmvif->mlo_int_scan_wk); 1932 1933 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 1934 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1935 &mvmvif->unblock_esr_tmp_non_bss_wk); 1936 1937 cancel_delayed_work_sync(&mvmvif->csa_work); 1938 } 1939 1940 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1941 struct ieee80211_vif *vif) 1942 { 1943 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1944 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1945 struct iwl_probe_resp_data *probe_data; 1946 1947 iwl_mvm_prepare_mac_removal(mvm, vif); 1948 1949 if (!(vif->type == NL80211_IFTYPE_AP || 1950 vif->type == NL80211_IFTYPE_ADHOC)) 1951 iwl_mvm_tcm_rm_vif(mvm, vif); 1952 1953 mutex_lock(&mvm->mutex); 1954 1955 if (vif == mvm->csme_vif) { 1956 iwl_mei_set_netdev(NULL); 1957 mvm->csme_vif = NULL; 1958 } 1959 1960 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1961 lockdep_is_held(&mvm->mutex)); 1962 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1963 if (probe_data) 1964 kfree_rcu(probe_data, rcu_head); 1965 1966 if (mvm->bf_allowed_vif == mvmvif) { 1967 mvm->bf_allowed_vif = NULL; 1968 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1969 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1970 } 1971 1972 if (vif->bss_conf.ftm_responder) 1973 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1974 1975 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1976 1977 /* 1978 * For AP/GO interface, the tear down of the resources allocated to the 1979 * interface is be handled as part of the stop_ap flow. 1980 */ 1981 if (vif->type == NL80211_IFTYPE_AP || 1982 vif->type == NL80211_IFTYPE_ADHOC) { 1983 #ifdef CONFIG_NL80211_TESTMODE 1984 if (vif == mvm->noa_vif) { 1985 mvm->noa_vif = NULL; 1986 mvm->noa_duration = 0; 1987 } 1988 #endif 1989 goto out; 1990 } 1991 1992 iwl_mvm_power_update_mac(mvm); 1993 1994 /* Before the interface removal, mac80211 would cancel the ROC, and the 1995 * ROC worker would be scheduled if needed. The worker would be flushed 1996 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 1997 * binding etc. so nothing needs to be done here. 1998 */ 1999 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2000 if (mvmvif->deflink.phy_ctxt) { 2001 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 2002 mvmvif->deflink.phy_ctxt = NULL; 2003 } 2004 mvm->p2p_device_vif = NULL; 2005 } 2006 2007 iwl_mvm_mac_ctxt_remove(mvm, vif); 2008 2009 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 2010 2011 if (vif->type == NL80211_IFTYPE_MONITOR) 2012 mvm->monitor_on = false; 2013 2014 out: 2015 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 2016 if (vif->type == NL80211_IFTYPE_AP || 2017 vif->type == NL80211_IFTYPE_ADHOC) { 2018 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 2019 iwl_mvm_dealloc_bcast_sta(mvm, vif); 2020 } 2021 2022 mutex_unlock(&mvm->mutex); 2023 } 2024 2025 struct iwl_mvm_mc_iter_data { 2026 struct iwl_mvm *mvm; 2027 int port_id; 2028 }; 2029 2030 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 2031 struct ieee80211_vif *vif) 2032 { 2033 struct iwl_mvm_mc_iter_data *data = _data; 2034 struct iwl_mvm *mvm = data->mvm; 2035 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 2036 struct iwl_host_cmd hcmd = { 2037 .id = MCAST_FILTER_CMD, 2038 .flags = CMD_ASYNC, 2039 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 2040 }; 2041 int ret, len; 2042 2043 /* if we don't have free ports, mcast frames will be dropped */ 2044 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 2045 return; 2046 2047 if (vif->type != NL80211_IFTYPE_STATION || 2048 !vif->cfg.assoc) 2049 return; 2050 2051 cmd->port_id = data->port_id++; 2052 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 2053 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 2054 2055 hcmd.len[0] = len; 2056 hcmd.data[0] = cmd; 2057 2058 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2059 if (ret) 2060 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 2061 } 2062 2063 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 2064 { 2065 struct iwl_mvm_mc_iter_data iter_data = { 2066 .mvm = mvm, 2067 }; 2068 int ret; 2069 2070 lockdep_assert_held(&mvm->mutex); 2071 2072 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 2073 return; 2074 2075 ieee80211_iterate_active_interfaces_atomic( 2076 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2077 iwl_mvm_mc_iface_iterator, &iter_data); 2078 2079 /* 2080 * Send a (synchronous) ech command so that we wait for the 2081 * multiple asynchronous MCAST_FILTER_CMD commands sent by 2082 * the interface iterator. Otherwise, we might get here over 2083 * and over again (by userspace just sending a lot of these) 2084 * and the CPU can send them faster than the firmware can 2085 * process them. 2086 * Note that the CPU is still faster - but with this we'll 2087 * actually send fewer commands overall because the CPU will 2088 * not schedule the work in mac80211 as frequently if it's 2089 * still running when rescheduled (possibly multiple times). 2090 */ 2091 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2092 if (ret) 2093 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2094 } 2095 2096 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2097 struct netdev_hw_addr_list *mc_list) 2098 { 2099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2100 struct iwl_mcast_filter_cmd *cmd; 2101 struct netdev_hw_addr *addr; 2102 int addr_count; 2103 bool pass_all; 2104 int len; 2105 2106 addr_count = netdev_hw_addr_list_count(mc_list); 2107 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2108 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2109 if (pass_all) 2110 addr_count = 0; 2111 2112 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2113 cmd = kzalloc(len, GFP_ATOMIC); 2114 if (!cmd) 2115 return 0; 2116 2117 if (pass_all) { 2118 cmd->pass_all = 1; 2119 return (u64)(unsigned long)cmd; 2120 } 2121 2122 netdev_hw_addr_list_for_each(addr, mc_list) { 2123 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2124 cmd->count, addr->addr); 2125 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2126 addr->addr, ETH_ALEN); 2127 cmd->count++; 2128 } 2129 2130 return (u64)(unsigned long)cmd; 2131 } 2132 2133 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2134 unsigned int changed_flags, 2135 unsigned int *total_flags, u64 multicast) 2136 { 2137 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2138 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2139 2140 guard(mvm)(mvm); 2141 2142 /* replace previous configuration */ 2143 kfree(mvm->mcast_filter_cmd); 2144 mvm->mcast_filter_cmd = cmd; 2145 2146 if (!cmd) 2147 goto out; 2148 2149 if (changed_flags & FIF_ALLMULTI) 2150 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2151 2152 if (cmd->pass_all) 2153 cmd->count = 0; 2154 2155 iwl_mvm_recalc_multicast(mvm); 2156 out: 2157 *total_flags = 0; 2158 } 2159 2160 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2161 struct ieee80211_vif *vif, 2162 unsigned int filter_flags, 2163 unsigned int changed_flags) 2164 { 2165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2166 2167 /* We support only filter for probe requests */ 2168 if (!(changed_flags & FIF_PROBE_REQ)) 2169 return; 2170 2171 /* Supported only for p2p client interfaces */ 2172 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2173 !vif->p2p) 2174 return; 2175 2176 guard(mvm)(mvm); 2177 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2178 } 2179 2180 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2181 { 2182 struct iwl_mu_group_mgmt_cmd cmd = {}; 2183 2184 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2185 WLAN_MEMBERSHIP_LEN); 2186 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2187 WLAN_USER_POSITION_LEN); 2188 2189 return iwl_mvm_send_cmd_pdu(mvm, 2190 WIDE_ID(DATA_PATH_GROUP, 2191 UPDATE_MU_GROUPS_CMD), 2192 0, sizeof(cmd), &cmd); 2193 } 2194 2195 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2196 struct ieee80211_vif *vif) 2197 { 2198 if (vif->bss_conf.mu_mimo_owner) { 2199 struct iwl_mu_group_mgmt_notif *notif = _data; 2200 2201 /* 2202 * MU-MIMO Group Id action frame is little endian. We treat 2203 * the data received from firmware as if it came from the 2204 * action frame, so no conversion is needed. 2205 */ 2206 ieee80211_update_mu_groups(vif, 0, 2207 (u8 *)¬if->membership_status, 2208 (u8 *)¬if->user_position); 2209 } 2210 } 2211 2212 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2213 struct iwl_rx_cmd_buffer *rxb) 2214 { 2215 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2216 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2217 2218 ieee80211_iterate_active_interfaces_atomic( 2219 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2220 iwl_mvm_mu_mimo_iface_iterator, notif); 2221 } 2222 2223 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2224 { 2225 u8 byte_num = ppe_pos_bit / 8; 2226 u8 bit_num = ppe_pos_bit % 8; 2227 u8 residue_bits; 2228 u8 res; 2229 2230 if (bit_num <= 5) 2231 return (ppe[byte_num] >> bit_num) & 2232 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2233 2234 /* 2235 * If bit_num > 5, we have to combine bits with next byte. 2236 * Calculate how many bits we need to take from current byte (called 2237 * here "residue_bits"), and add them to bits from next byte. 2238 */ 2239 2240 residue_bits = 8 - bit_num; 2241 2242 res = (ppe[byte_num + 1] & 2243 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2244 residue_bits; 2245 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2246 2247 return res; 2248 } 2249 2250 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2251 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2252 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2253 bool inheritance) 2254 { 2255 int i; 2256 2257 /* 2258 * FW currently supports only nss == MAX_HE_SUPP_NSS 2259 * 2260 * If nss > MAX: we can ignore values we don't support 2261 * If nss < MAX: we can set zeros in other streams 2262 */ 2263 if (nss > MAX_HE_SUPP_NSS) { 2264 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2265 MAX_HE_SUPP_NSS); 2266 nss = MAX_HE_SUPP_NSS; 2267 } 2268 2269 for (i = 0; i < nss; i++) { 2270 u8 ru_index_tmp = ru_index_bitmap << 1; 2271 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2272 u8 bw; 2273 2274 for (bw = 0; 2275 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2276 bw++) { 2277 ru_index_tmp >>= 1; 2278 2279 /* 2280 * According to the 11be spec, if for a specific BW the PPE Thresholds 2281 * isn't present - it should inherit the thresholds from the last 2282 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2283 * this inheritance - continue in this case 2284 */ 2285 if (!(ru_index_tmp & 1)) { 2286 if (inheritance) 2287 goto set_thresholds; 2288 else 2289 continue; 2290 } 2291 2292 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2293 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2294 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2295 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2296 2297 set_thresholds: 2298 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2299 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2300 } 2301 } 2302 } 2303 2304 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2305 struct ieee80211_link_sta *link_sta, 2306 struct iwl_he_pkt_ext_v2 *pkt_ext, 2307 bool inheritance) 2308 { 2309 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2310 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2311 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2312 u8 ru_index_bitmap = 2313 u8_get_bits(*ppe, 2314 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2315 /* Starting after PPE header */ 2316 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2317 2318 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2319 inheritance); 2320 } 2321 2322 static int 2323 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2324 u8 nominal_padding) 2325 { 2326 int low_th = -1; 2327 int high_th = -1; 2328 int i; 2329 2330 /* all the macros are the same for EHT and HE */ 2331 switch (nominal_padding) { 2332 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2333 low_th = IWL_HE_PKT_EXT_NONE; 2334 high_th = IWL_HE_PKT_EXT_NONE; 2335 break; 2336 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2337 low_th = IWL_HE_PKT_EXT_BPSK; 2338 high_th = IWL_HE_PKT_EXT_NONE; 2339 break; 2340 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2341 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2342 low_th = IWL_HE_PKT_EXT_NONE; 2343 high_th = IWL_HE_PKT_EXT_BPSK; 2344 break; 2345 } 2346 2347 if (low_th < 0 || high_th < 0) 2348 return -EINVAL; 2349 2350 /* Set the PPE thresholds accordingly */ 2351 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2352 u8 bw; 2353 2354 for (bw = 0; 2355 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2356 bw++) { 2357 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2358 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2359 } 2360 } 2361 2362 return 0; 2363 } 2364 2365 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2366 u8 nominal_padding) 2367 { 2368 int i; 2369 2370 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2371 u8 bw; 2372 2373 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2374 bw++) { 2375 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2376 2377 if (nominal_padding > 2378 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2379 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2380 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2381 else if (nominal_padding == 2382 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2383 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2384 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2385 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2386 } 2387 } 2388 } 2389 2390 /* Set the pkt_ext field according to PPE Thresholds element */ 2391 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2392 struct ieee80211_link_sta *link_sta, 2393 struct iwl_he_pkt_ext_v2 *pkt_ext) 2394 { 2395 u8 nominal_padding; 2396 int i, ret = 0; 2397 2398 if (WARN_ON(!link_sta)) 2399 return -EINVAL; 2400 2401 /* Initialize the PPE thresholds to "None" (7), as described in Table 2402 * 9-262ac of 80211.ax/D3.0. 2403 */ 2404 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2405 sizeof(struct iwl_he_pkt_ext_v2)); 2406 2407 if (link_sta->eht_cap.has_eht) { 2408 nominal_padding = 2409 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2410 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2411 2412 /* If PPE Thresholds exists, parse them into a FW-familiar 2413 * format. 2414 */ 2415 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2416 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2417 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2418 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2419 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2420 u8 ru_index_bitmap = 2421 u16_get_bits(*ppe, 2422 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2423 /* Starting after PPE header */ 2424 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2425 2426 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2427 ppe, ppe_pos_bit, true); 2428 /* EHT PPE Thresholds doesn't exist - set the API according to 2429 * HE PPE Tresholds 2430 */ 2431 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2432 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2433 /* Even though HE Capabilities IE doesn't contain PPE 2434 * Thresholds for BW 320Mhz, thresholds for this BW will 2435 * be filled in with the same values as 160Mhz, due to 2436 * the inheritance, as required. 2437 */ 2438 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2439 true); 2440 2441 /* According to the requirements, for MCSs 12-13 the 2442 * maximum value between HE PPE Threshold and Common 2443 * Nominal Packet Padding needs to be taken 2444 */ 2445 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2446 2447 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2448 * take the Thresholds from Common Nominal Packet Padding field 2449 */ 2450 } else { 2451 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2452 nominal_padding); 2453 } 2454 } else if (link_sta->he_cap.has_he) { 2455 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2456 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2457 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2458 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2459 false); 2460 /* PPE Thresholds doesn't exist - set the API PPE values 2461 * according to Common Nominal Packet Padding field. 2462 */ 2463 } else { 2464 nominal_padding = 2465 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2466 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2467 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2468 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2469 nominal_padding); 2470 } 2471 } 2472 2473 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2474 int bw; 2475 2476 for (bw = 0; 2477 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2478 bw++) { 2479 u8 *qam_th = 2480 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2481 2482 IWL_DEBUG_HT(mvm, 2483 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2484 i, bw, qam_th[0], qam_th[1]); 2485 } 2486 } 2487 return ret; 2488 } 2489 2490 /* 2491 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2492 * is enabled or not 2493 */ 2494 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2495 const struct iwl_mvm_vif_link_info *link_info, 2496 struct iwl_he_backoff_conf *trig_based_txf) 2497 { 2498 int i; 2499 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2500 bool mu_edca_enabled = true; 2501 2502 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2503 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2504 &link_info->queue_params[i].mu_edca_param_rec; 2505 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2506 2507 if (!link_info->queue_params[i].mu_edca) { 2508 mu_edca_enabled = false; 2509 break; 2510 } 2511 2512 trig_based_txf[ac].cwmin = 2513 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2514 trig_based_txf[ac].cwmax = 2515 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2516 trig_based_txf[ac].aifsn = 2517 cpu_to_le16(mu_edca->aifsn & 0xf); 2518 trig_based_txf[ac].mu_time = 2519 cpu_to_le16(mu_edca->mu_edca_timer); 2520 } 2521 2522 return mu_edca_enabled; 2523 } 2524 2525 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2526 { 2527 const struct ieee80211_supported_band *sband; 2528 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2529 2530 /* This capability is the same for all bands, 2531 * so take it from one of them. 2532 */ 2533 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2534 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2535 2536 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2537 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2538 } 2539 2540 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2541 struct ieee80211_link_sta *link_sta) 2542 { 2543 u8 *mac_cap_info = 2544 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2545 __le32 htc_flags = 0; 2546 2547 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2548 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2549 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2550 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2551 u8 link_adap = 2552 ((mac_cap_info[2] & 2553 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2554 (mac_cap_info[1] & 2555 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2556 2557 if (link_adap == 2) 2558 htc_flags |= 2559 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2560 else if (link_adap == 3) 2561 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2562 } 2563 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2564 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2565 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2566 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2567 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2568 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2569 2570 return htc_flags; 2571 } 2572 2573 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2574 struct ieee80211_vif *vif, u8 sta_id) 2575 { 2576 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2577 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2578 .sta_id = sta_id, 2579 .tid_limit = IWL_MAX_TID_COUNT, 2580 .bss_color = vif->bss_conf.he_bss_color.color, 2581 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2582 .frame_time_rts_th = 2583 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2584 }; 2585 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2586 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2587 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2588 int size; 2589 struct ieee80211_sta *sta; 2590 u32 flags; 2591 int i; 2592 void *cmd; 2593 2594 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2595 ver = 1; 2596 2597 switch (ver) { 2598 case 1: 2599 /* same layout as v2 except some data at the end */ 2600 cmd = &sta_ctxt_cmd_v2; 2601 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2602 break; 2603 case 2: 2604 cmd = &sta_ctxt_cmd_v2; 2605 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2606 break; 2607 case 3: 2608 cmd = &sta_ctxt_cmd; 2609 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2610 break; 2611 default: 2612 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2613 return; 2614 } 2615 2616 rcu_read_lock(); 2617 2618 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2619 if (IS_ERR_OR_NULL(sta)) { 2620 rcu_read_unlock(); 2621 WARN(1, "Can't find STA to configure HE\n"); 2622 return; 2623 } 2624 2625 if (!sta->deflink.he_cap.has_he) { 2626 rcu_read_unlock(); 2627 return; 2628 } 2629 2630 flags = 0; 2631 2632 /* Block 26-tone RU OFDMA transmissions */ 2633 if (mvmvif->deflink.he_ru_2mhz_block) 2634 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2635 2636 /* HTC flags */ 2637 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2638 2639 /* PPE Thresholds */ 2640 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2641 flags |= STA_CTXT_HE_PACKET_EXT; 2642 2643 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2644 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2645 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2646 2647 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2648 IEEE80211_HE_MAC_CAP2_ACK_EN) 2649 flags |= STA_CTXT_HE_ACK_ENABLED; 2650 2651 rcu_read_unlock(); 2652 2653 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2654 &sta_ctxt_cmd.trig_based_txf[0])) 2655 flags |= STA_CTXT_HE_MU_EDCA_CW; 2656 2657 if (vif->bss_conf.uora_exists) { 2658 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2659 2660 sta_ctxt_cmd.rand_alloc_ecwmin = 2661 vif->bss_conf.uora_ocw_range & 0x7; 2662 sta_ctxt_cmd.rand_alloc_ecwmax = 2663 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2664 } 2665 2666 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2667 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2668 2669 if (vif->bss_conf.nontransmitted) { 2670 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2671 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2672 vif->bss_conf.transmitter_bssid); 2673 sta_ctxt_cmd.max_bssid_indicator = 2674 vif->bss_conf.bssid_indicator; 2675 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2676 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2677 sta_ctxt_cmd.profile_periodicity = 2678 vif->bss_conf.profile_periodicity; 2679 } 2680 2681 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2682 2683 if (ver < 3) { 2684 /* fields before pkt_ext */ 2685 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2686 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2687 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2688 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2689 2690 /* pkt_ext */ 2691 for (i = 0; 2692 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2693 i++) { 2694 u8 bw; 2695 2696 for (bw = 0; 2697 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2698 bw++) { 2699 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2700 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2701 2702 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2703 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2704 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2705 } 2706 } 2707 2708 /* fields after pkt_ext */ 2709 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2710 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2711 sizeof(sta_ctxt_cmd_v2) - 2712 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2713 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2714 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2715 (u8 *)&sta_ctxt_cmd + 2716 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2717 sizeof(sta_ctxt_cmd) - 2718 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2719 sta_ctxt_cmd_v2.reserved3 = 0; 2720 } 2721 2722 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2723 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2724 } 2725 2726 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2727 u32 duration_override, unsigned int link_id) 2728 { 2729 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2730 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2731 2732 if (duration_override > duration) 2733 duration = duration_override; 2734 2735 /* Try really hard to protect the session and hear a beacon 2736 * The new session protection command allows us to protect the 2737 * session for a much longer time since the firmware will internally 2738 * create two events: a 300TU one with a very high priority that 2739 * won't be fragmented which should be enough for 99% of the cases, 2740 * and another one (which we configure here to be 900TU long) which 2741 * will have a slightly lower priority, but more importantly, can be 2742 * fragmented so that it'll allow other activities to run. 2743 */ 2744 if (fw_has_capa(&mvm->fw->ucode_capa, 2745 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2746 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2747 min_duration, false, 2748 link_id); 2749 else 2750 iwl_mvm_protect_session(mvm, vif, duration, 2751 min_duration, 500, false); 2752 } 2753 2754 /* Handle association common part to MLD and non-MLD modes */ 2755 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2756 struct ieee80211_vif *vif, 2757 u64 changes) 2758 { 2759 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2760 int ret; 2761 int link_id; 2762 2763 /* The firmware tracks the MU-MIMO group on its own. 2764 * However, on HW restart we should restore this data. 2765 */ 2766 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2767 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2768 ret = iwl_mvm_update_mu_groups(mvm, vif); 2769 if (ret) 2770 IWL_ERR(mvm, 2771 "failed to update VHT MU_MIMO groups\n"); 2772 } 2773 2774 iwl_mvm_recalc_multicast(mvm); 2775 2776 /* reset rssi values */ 2777 for_each_mvm_vif_valid_link(mvmvif, link_id) 2778 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2779 2780 iwl_mvm_bt_coex_vif_change(mvm); 2781 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2782 IEEE80211_SMPS_AUTOMATIC); 2783 if (fw_has_capa(&mvm->fw->ucode_capa, 2784 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2785 iwl_mvm_config_scan(mvm); 2786 } 2787 2788 /* Execute the common part for MLD and non-MLD modes */ 2789 void 2790 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2791 struct ieee80211_vif *vif, 2792 struct ieee80211_bss_conf *link_conf, 2793 u64 changes) 2794 { 2795 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2796 int ret; 2797 2798 if (changes & BSS_CHANGED_BEACON_INFO) { 2799 /* We received a beacon from the associated AP so 2800 * remove the session protection. 2801 */ 2802 iwl_mvm_stop_session_protection(mvm, vif); 2803 2804 iwl_mvm_sf_update(mvm, vif, false); 2805 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2806 } 2807 2808 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2809 /* Send power command on every beacon change, 2810 * because we may have not enabled beacon abort yet. 2811 */ 2812 BSS_CHANGED_BEACON_INFO)) { 2813 ret = iwl_mvm_power_update_mac(mvm); 2814 if (ret) 2815 IWL_ERR(mvm, "failed to update power mode\n"); 2816 } 2817 2818 if (changes & BSS_CHANGED_CQM) { 2819 struct iwl_mvm_vif_link_info *link_info = 2820 mvmvif->link[link_conf->link_id]; 2821 2822 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2823 if (link_info) 2824 link_info->bf_data.last_cqm_event = 0; 2825 2826 if (mvmvif->bf_enabled) { 2827 /* FIXME: need to update per link when FW API will 2828 * support it 2829 */ 2830 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2831 if (ret) 2832 IWL_ERR(mvm, 2833 "failed to update CQM thresholds\n"); 2834 } 2835 } 2836 2837 if (changes & BSS_CHANGED_BANDWIDTH) 2838 iwl_mvm_update_link_smps(vif, link_conf); 2839 2840 if (changes & BSS_CHANGED_TPE) { 2841 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2842 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2843 link_conf, 2844 false); 2845 } 2846 } 2847 2848 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2849 struct ieee80211_vif *vif, 2850 struct ieee80211_bss_conf *bss_conf, 2851 u64 changes) 2852 { 2853 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2854 int ret; 2855 int i; 2856 2857 /* 2858 * Re-calculate the tsf id, as the leader-follower relations depend 2859 * on the beacon interval, which was not known when the station 2860 * interface was added. 2861 */ 2862 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2863 if ((vif->bss_conf.he_support && 2864 !iwlwifi_mod_params.disable_11ax)) 2865 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2866 2867 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2868 } 2869 2870 /* Update MU EDCA params */ 2871 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2872 vif->cfg.assoc && 2873 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2874 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2875 2876 /* 2877 * If we're not associated yet, take the (new) BSSID before associating 2878 * so the firmware knows. If we're already associated, then use the old 2879 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2880 * branch for disassociation below. 2881 */ 2882 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2883 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2884 2885 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2886 if (ret) 2887 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2888 2889 /* after sending it once, adopt mac80211 data */ 2890 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2891 mvmvif->associated = vif->cfg.assoc; 2892 2893 if (changes & BSS_CHANGED_ASSOC) { 2894 if (vif->cfg.assoc) { 2895 mvmvif->session_prot_connection_loss = false; 2896 2897 /* clear statistics to get clean beacon counter */ 2898 iwl_mvm_request_statistics(mvm, true); 2899 for_each_mvm_vif_valid_link(mvmvif, i) 2900 memset(&mvmvif->link[i]->beacon_stats, 0, 2901 sizeof(mvmvif->link[i]->beacon_stats)); 2902 2903 /* add quota for this interface */ 2904 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2905 if (ret) { 2906 IWL_ERR(mvm, "failed to update quotas\n"); 2907 return; 2908 } 2909 2910 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2911 &mvm->status) && 2912 !fw_has_capa(&mvm->fw->ucode_capa, 2913 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2914 /* 2915 * If we're restarting then the firmware will 2916 * obviously have lost synchronisation with 2917 * the AP. It will attempt to synchronise by 2918 * itself, but we can make it more reliable by 2919 * scheduling a session protection time event. 2920 * 2921 * The firmware needs to receive a beacon to 2922 * catch up with synchronisation, use 110% of 2923 * the beacon interval. 2924 * 2925 * Set a large maximum delay to allow for more 2926 * than a single interface. 2927 * 2928 * For new firmware versions, rely on the 2929 * firmware. This is relevant for DCM scenarios 2930 * only anyway. 2931 */ 2932 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2933 iwl_mvm_protect_session(mvm, vif, dur, dur, 2934 5 * dur, false); 2935 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2936 &mvm->status) && 2937 !vif->bss_conf.dtim_period) { 2938 /* 2939 * If we're not restarting and still haven't 2940 * heard a beacon (dtim period unknown) then 2941 * make sure we still have enough minimum time 2942 * remaining in the time event, since the auth 2943 * might actually have taken quite a while 2944 * (especially for SAE) and so the remaining 2945 * time could be small without us having heard 2946 * a beacon yet. 2947 */ 2948 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2949 } 2950 2951 iwl_mvm_sf_update(mvm, vif, false); 2952 iwl_mvm_power_vif_assoc(mvm, vif); 2953 if (vif->p2p) { 2954 iwl_mvm_update_smps(mvm, vif, 2955 IWL_MVM_SMPS_REQ_PROT, 2956 IEEE80211_SMPS_DYNAMIC, 0); 2957 } 2958 } else if (mvmvif->deflink.ap_sta_id != IWL_INVALID_STA) { 2959 iwl_mvm_mei_host_disassociated(mvm); 2960 /* 2961 * If update fails - SF might be running in associated 2962 * mode while disassociated - which is forbidden. 2963 */ 2964 ret = iwl_mvm_sf_update(mvm, vif, false); 2965 WARN_ONCE(ret && 2966 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2967 &mvm->status), 2968 "Failed to update SF upon disassociation\n"); 2969 2970 /* 2971 * If we get an assert during the connection (after the 2972 * station has been added, but before the vif is set 2973 * to associated), mac80211 will re-add the station and 2974 * then configure the vif. Since the vif is not 2975 * associated, we would remove the station here and 2976 * this would fail the recovery. 2977 */ 2978 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2979 &mvm->status)) { 2980 /* first remove remaining keys */ 2981 iwl_mvm_sec_key_remove_ap(mvm, vif, 2982 &mvmvif->deflink, 0); 2983 2984 /* 2985 * Remove AP station now that 2986 * the MAC is unassoc 2987 */ 2988 ret = iwl_mvm_rm_sta_id(mvm, vif, 2989 mvmvif->deflink.ap_sta_id); 2990 if (ret) 2991 IWL_ERR(mvm, 2992 "failed to remove AP station\n"); 2993 2994 mvmvif->deflink.ap_sta_id = IWL_INVALID_STA; 2995 } 2996 2997 /* remove quota for this interface */ 2998 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2999 if (ret) 3000 IWL_ERR(mvm, "failed to update quotas\n"); 3001 3002 /* this will take the cleared BSSID from bss_conf */ 3003 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3004 if (ret) 3005 IWL_ERR(mvm, 3006 "failed to update MAC %pM (clear after unassoc)\n", 3007 vif->addr); 3008 } 3009 3010 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 3011 } 3012 3013 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 3014 changes); 3015 } 3016 3017 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 3018 struct ieee80211_vif *vif, 3019 int *ret) 3020 { 3021 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3022 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3023 int i; 3024 3025 lockdep_assert_held(&mvm->mutex); 3026 3027 mvmvif->ap_assoc_sta_count = 0; 3028 3029 /* must be set before quota calculations */ 3030 mvmvif->ap_ibss_active = true; 3031 3032 /* send all the early keys to the device now */ 3033 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3034 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 3035 3036 if (!key) 3037 continue; 3038 3039 mvmvif->ap_early_keys[i] = NULL; 3040 3041 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 3042 if (*ret) 3043 return true; 3044 } 3045 3046 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3047 iwl_mvm_vif_set_low_latency(mvmvif, true, 3048 LOW_LATENCY_VIF_TYPE); 3049 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 3050 } 3051 3052 /* power updated needs to be done before quotas */ 3053 iwl_mvm_power_update_mac(mvm); 3054 3055 return false; 3056 } 3057 3058 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 3059 struct ieee80211_vif *vif, 3060 struct ieee80211_bss_conf *link_conf) 3061 { 3062 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3063 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3064 int ret; 3065 3066 mutex_lock(&mvm->mutex); 3067 3068 /* 3069 * Re-calculate the tsf id, as the leader-follower relations depend on 3070 * the beacon interval, which was not known when the AP interface 3071 * was added. 3072 */ 3073 if (vif->type == NL80211_IFTYPE_AP) 3074 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 3075 3076 /* For older devices need to send beacon template before adding mac 3077 * context. For the newer, the beacon is a resource that belongs to a 3078 * MAC, so need to send beacon template after adding the mac. 3079 */ 3080 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 3081 /* Add the mac context */ 3082 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3083 if (ret) 3084 goto out_unlock; 3085 3086 /* Send the beacon template */ 3087 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3088 if (ret) 3089 goto out_unlock; 3090 } else { 3091 /* Send the beacon template */ 3092 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3093 if (ret) 3094 goto out_unlock; 3095 3096 /* Add the mac context */ 3097 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3098 if (ret) 3099 goto out_unlock; 3100 } 3101 3102 /* Perform the binding */ 3103 ret = iwl_mvm_binding_add_vif(mvm, vif); 3104 if (ret) 3105 goto out_remove; 3106 3107 /* 3108 * This is not very nice, but the simplest: 3109 * For older FWs adding the mcast sta before the bcast station may 3110 * cause assert 0x2b00. 3111 * This is fixed in later FW so make the order of removal depend on 3112 * the TLV 3113 */ 3114 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3115 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3116 if (ret) 3117 goto out_unbind; 3118 /* 3119 * Send the bcast station. At this stage the TBTT and DTIM time 3120 * events are added and applied to the scheduler 3121 */ 3122 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3123 if (ret) { 3124 iwl_mvm_rm_mcast_sta(mvm, vif); 3125 goto out_unbind; 3126 } 3127 } else { 3128 /* 3129 * Send the bcast station. At this stage the TBTT and DTIM time 3130 * events are added and applied to the scheduler 3131 */ 3132 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3133 if (ret) 3134 goto out_unbind; 3135 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3136 if (ret) { 3137 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3138 goto out_unbind; 3139 } 3140 } 3141 3142 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3143 goto out_failed; 3144 3145 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3146 if (ret) 3147 goto out_failed; 3148 3149 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3150 if (vif->p2p && mvm->p2p_device_vif) 3151 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3152 3153 iwl_mvm_bt_coex_vif_change(mvm); 3154 3155 /* we don't support TDLS during DCM */ 3156 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3157 iwl_mvm_teardown_tdls_peers(mvm); 3158 3159 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3160 3161 goto out_unlock; 3162 3163 out_failed: 3164 iwl_mvm_power_update_mac(mvm); 3165 mvmvif->ap_ibss_active = false; 3166 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3167 iwl_mvm_rm_mcast_sta(mvm, vif); 3168 out_unbind: 3169 iwl_mvm_binding_remove_vif(mvm, vif); 3170 out_remove: 3171 iwl_mvm_mac_ctxt_remove(mvm, vif); 3172 out_unlock: 3173 mutex_unlock(&mvm->mutex); 3174 return ret; 3175 } 3176 3177 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3178 struct ieee80211_vif *vif, 3179 struct ieee80211_bss_conf *link_conf) 3180 { 3181 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3182 } 3183 3184 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3185 struct ieee80211_vif *vif) 3186 { 3187 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3188 } 3189 3190 /* Common part for MLD and non-MLD ops */ 3191 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3192 struct ieee80211_vif *vif) 3193 { 3194 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3195 3196 lockdep_assert_held(&mvm->mutex); 3197 3198 iwl_mvm_prepare_mac_removal(mvm, vif); 3199 3200 /* Handle AP stop while in CSA */ 3201 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3202 iwl_mvm_remove_time_event(mvm, mvmvif, 3203 &mvmvif->time_event_data); 3204 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3205 mvmvif->csa_countdown = false; 3206 } 3207 3208 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3209 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3210 mvm->csa_tx_block_bcn_timeout = 0; 3211 } 3212 3213 mvmvif->ap_ibss_active = false; 3214 mvm->ap_last_beacon_gp2 = 0; 3215 3216 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3217 iwl_mvm_vif_set_low_latency(mvmvif, false, 3218 LOW_LATENCY_VIF_TYPE); 3219 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3220 } 3221 3222 iwl_mvm_bt_coex_vif_change(mvm); 3223 } 3224 3225 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3226 struct ieee80211_vif *vif, 3227 struct ieee80211_bss_conf *link_conf) 3228 { 3229 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3230 3231 guard(mvm)(mvm); 3232 3233 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3234 3235 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3236 if (vif->p2p && mvm->p2p_device_vif) 3237 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3238 3239 iwl_mvm_update_quotas(mvm, false, NULL); 3240 3241 iwl_mvm_ftm_responder_clear(mvm, vif); 3242 3243 /* 3244 * This is not very nice, but the simplest: 3245 * For older FWs removing the mcast sta before the bcast station may 3246 * cause assert 0x2b00. 3247 * This is fixed in later FW (which will stop beaconing when removing 3248 * bcast station). 3249 * So make the order of removal depend on the TLV 3250 */ 3251 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3252 iwl_mvm_rm_mcast_sta(mvm, vif); 3253 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3254 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3255 iwl_mvm_rm_mcast_sta(mvm, vif); 3256 iwl_mvm_binding_remove_vif(mvm, vif); 3257 3258 iwl_mvm_power_update_mac(mvm); 3259 3260 iwl_mvm_mac_ctxt_remove(mvm, vif); 3261 } 3262 3263 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3264 struct ieee80211_vif *vif, 3265 struct ieee80211_bss_conf *link_conf) 3266 { 3267 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3268 } 3269 3270 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3271 struct ieee80211_vif *vif) 3272 { 3273 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3274 } 3275 3276 static void 3277 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3278 struct ieee80211_vif *vif, 3279 struct ieee80211_bss_conf *bss_conf, 3280 u64 changes) 3281 { 3282 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3283 3284 /* Changes will be applied when the AP/IBSS is started */ 3285 if (!mvmvif->ap_ibss_active) 3286 return; 3287 3288 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3289 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3290 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3291 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3292 3293 /* Need to send a new beacon template to the FW */ 3294 if (changes & BSS_CHANGED_BEACON && 3295 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3296 IWL_WARN(mvm, "Failed updating beacon data\n"); 3297 3298 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3299 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3300 3301 if (ret) 3302 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3303 ret); 3304 } 3305 3306 } 3307 3308 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3309 struct ieee80211_vif *vif, 3310 struct ieee80211_bss_conf *bss_conf, 3311 u64 changes) 3312 { 3313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3314 3315 guard(mvm)(mvm); 3316 3317 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3318 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3319 3320 switch (vif->type) { 3321 case NL80211_IFTYPE_STATION: 3322 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3323 break; 3324 case NL80211_IFTYPE_AP: 3325 case NL80211_IFTYPE_ADHOC: 3326 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3327 break; 3328 case NL80211_IFTYPE_MONITOR: 3329 if (changes & BSS_CHANGED_MU_GROUPS) 3330 iwl_mvm_update_mu_groups(mvm, vif); 3331 break; 3332 default: 3333 /* shouldn't happen */ 3334 WARN_ON_ONCE(1); 3335 } 3336 3337 if (changes & BSS_CHANGED_TXPOWER) { 3338 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3339 bss_conf->txpower); 3340 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower); 3341 } 3342 } 3343 3344 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3345 struct ieee80211_scan_request *hw_req) 3346 { 3347 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3348 3349 if (hw_req->req.n_channels == 0 || 3350 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3351 return -EINVAL; 3352 3353 guard(mvm)(mvm); 3354 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3355 } 3356 3357 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3358 struct ieee80211_vif *vif) 3359 { 3360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3361 3362 guard(mvm)(mvm); 3363 3364 /* Due to a race condition, it's possible that mac80211 asks 3365 * us to stop a hw_scan when it's already stopped. This can 3366 * happen, for instance, if we stopped the scan ourselves, 3367 * called ieee80211_scan_completed() and the userspace called 3368 * cancel scan scan before ieee80211_scan_work() could run. 3369 * To handle that, simply return if the scan is not running. 3370 */ 3371 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3372 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3373 } 3374 3375 void 3376 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3377 struct ieee80211_sta *sta, u16 tids, 3378 int num_frames, 3379 enum ieee80211_frame_release_type reason, 3380 bool more_data) 3381 { 3382 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3383 3384 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3385 3386 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3387 tids, more_data, false); 3388 } 3389 3390 void 3391 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3392 struct ieee80211_sta *sta, u16 tids, 3393 int num_frames, 3394 enum ieee80211_frame_release_type reason, 3395 bool more_data) 3396 { 3397 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3398 3399 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3400 3401 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3402 tids, more_data, true); 3403 } 3404 3405 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3406 enum sta_notify_cmd cmd, 3407 struct ieee80211_sta *sta) 3408 { 3409 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3410 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3411 unsigned long txqs = 0, tids = 0; 3412 int tid; 3413 3414 /* 3415 * If we have TVQM then we get too high queue numbers - luckily 3416 * we really shouldn't get here with that because such hardware 3417 * should have firmware supporting buffer station offload. 3418 */ 3419 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3420 return; 3421 3422 spin_lock_bh(&mvmsta->lock); 3423 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3424 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3425 3426 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3427 continue; 3428 3429 __set_bit(tid_data->txq_id, &txqs); 3430 3431 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3432 continue; 3433 3434 __set_bit(tid, &tids); 3435 } 3436 3437 switch (cmd) { 3438 case STA_NOTIFY_SLEEP: 3439 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3440 ieee80211_sta_set_buffered(sta, tid, true); 3441 3442 if (txqs) 3443 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3444 /* 3445 * The fw updates the STA to be asleep. Tx packets on the Tx 3446 * queues to this station will not be transmitted. The fw will 3447 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3448 */ 3449 break; 3450 case STA_NOTIFY_AWAKE: 3451 if (WARN_ON(mvmsta->deflink.sta_id == IWL_INVALID_STA)) 3452 break; 3453 3454 if (txqs) 3455 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3456 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3457 break; 3458 default: 3459 break; 3460 } 3461 spin_unlock_bh(&mvmsta->lock); 3462 } 3463 3464 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3465 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3466 { 3467 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3468 } 3469 3470 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3471 { 3472 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3473 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3474 struct ieee80211_sta *sta; 3475 struct iwl_mvm_sta *mvmsta; 3476 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3477 3478 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3479 return; 3480 3481 rcu_read_lock(); 3482 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3483 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3484 rcu_read_unlock(); 3485 return; 3486 } 3487 3488 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3489 3490 if (!mvmsta->vif || 3491 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3492 rcu_read_unlock(); 3493 return; 3494 } 3495 3496 if (mvmsta->sleeping != sleeping) { 3497 mvmsta->sleeping = sleeping; 3498 __iwl_mvm_mac_sta_notify(mvm->hw, 3499 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3500 sta); 3501 ieee80211_sta_ps_transition(sta, sleeping); 3502 } 3503 3504 if (sleeping) { 3505 switch (notif->type) { 3506 case IWL_MVM_PM_EVENT_AWAKE: 3507 case IWL_MVM_PM_EVENT_ASLEEP: 3508 break; 3509 case IWL_MVM_PM_EVENT_UAPSD: 3510 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3511 break; 3512 case IWL_MVM_PM_EVENT_PS_POLL: 3513 ieee80211_sta_pspoll(sta); 3514 break; 3515 default: 3516 break; 3517 } 3518 } 3519 3520 rcu_read_unlock(); 3521 } 3522 3523 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3524 struct ieee80211_vif *vif, 3525 struct ieee80211_sta *sta) 3526 { 3527 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3528 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3529 unsigned int link_id; 3530 3531 lockdep_assert_wiphy(mvm->hw->wiphy); 3532 3533 /* 3534 * This is called before mac80211 does RCU synchronisation, 3535 * so here we already invalidate our internal RCU-protected 3536 * station pointer. The rest of the code will thus no longer 3537 * be able to find the station this way, and we don't rely 3538 * on further RCU synchronisation after the sta_state() 3539 * callback deleted the station. 3540 * Since there's mvm->mutex here, no need to have RCU lock for 3541 * mvm_sta->link access. 3542 */ 3543 guard(mvm)(mvm); 3544 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3545 struct iwl_mvm_link_sta *link_sta; 3546 u32 sta_id; 3547 3548 if (!mvm_sta->link[link_id]) 3549 continue; 3550 3551 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3552 lockdep_is_held(&mvm->mutex)); 3553 sta_id = link_sta->sta_id; 3554 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3555 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3556 ERR_PTR(-ENOENT)); 3557 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3558 } 3559 } 3560 } 3561 3562 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3563 const u8 *bssid) 3564 { 3565 int i; 3566 3567 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3568 struct iwl_mvm_tcm_mac *mdata; 3569 3570 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3571 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3572 mdata->opened_rx_ba_sessions = false; 3573 } 3574 3575 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3576 return; 3577 3578 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3579 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3580 return; 3581 } 3582 3583 if (!vif->p2p && 3584 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3585 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3586 return; 3587 } 3588 3589 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3590 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3591 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3592 return; 3593 } 3594 } 3595 3596 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3597 } 3598 3599 static void 3600 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3601 struct ieee80211_vif *vif, u8 *peer_addr, 3602 enum nl80211_tdls_operation action) 3603 { 3604 struct iwl_fw_dbg_trigger_tlv *trig; 3605 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3606 3607 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3608 FW_DBG_TRIGGER_TDLS); 3609 if (!trig) 3610 return; 3611 3612 tdls_trig = (void *)trig->data; 3613 3614 if (!(tdls_trig->action_bitmap & BIT(action))) 3615 return; 3616 3617 if (tdls_trig->peer_mode && 3618 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3619 return; 3620 3621 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3622 "TDLS event occurred, peer %pM, action %d", 3623 peer_addr, action); 3624 } 3625 3626 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3627 bool tolerated; 3628 }; 3629 3630 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3631 struct cfg80211_bss *bss, 3632 void *_data) 3633 { 3634 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3635 const struct cfg80211_bss_ies *ies; 3636 const struct element *elem; 3637 3638 rcu_read_lock(); 3639 ies = rcu_dereference(bss->ies); 3640 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3641 ies->len); 3642 3643 if (!elem || elem->datalen < 10 || 3644 !(elem->data[10] & 3645 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3646 data->tolerated = false; 3647 } 3648 rcu_read_unlock(); 3649 } 3650 3651 static void 3652 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3653 struct ieee80211_vif *vif, 3654 unsigned int link_id, 3655 struct ieee80211_bss_conf *link_conf) 3656 { 3657 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3658 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3659 .tolerated = true, 3660 }; 3661 3662 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3663 !mvmvif->link[link_id])) 3664 return; 3665 3666 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3667 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3668 return; 3669 } 3670 3671 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3672 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3673 &iter_data); 3674 3675 /* 3676 * If there is at least one AP on radar channel that cannot 3677 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3678 */ 3679 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3680 } 3681 3682 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3683 struct ieee80211_vif *vif) 3684 { 3685 struct ieee80211_supported_band *sband; 3686 const struct ieee80211_sta_he_cap *he_cap; 3687 3688 if (vif->type != NL80211_IFTYPE_STATION) 3689 return; 3690 3691 if (!mvm->cca_40mhz_workaround) 3692 return; 3693 3694 /* decrement and check that we reached zero */ 3695 mvm->cca_40mhz_workaround--; 3696 if (mvm->cca_40mhz_workaround) 3697 return; 3698 3699 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3700 3701 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3702 3703 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3704 3705 if (he_cap) { 3706 /* we know that ours is writable */ 3707 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3708 3709 he->he_cap_elem.phy_cap_info[0] |= 3710 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3711 } 3712 } 3713 3714 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3715 struct ieee80211_vif *vif, 3716 struct iwl_mvm_sta *mvm_sta) 3717 { 3718 #if IS_ENABLED(CONFIG_IWLMEI) 3719 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3720 struct iwl_mei_conn_info conn_info = { 3721 .ssid_len = vif->cfg.ssid_len, 3722 }; 3723 3724 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3725 return; 3726 3727 if (!mvm->mei_registered) 3728 return; 3729 3730 /* FIXME: MEI needs to be updated for MLO */ 3731 if (!vif->bss_conf.chanreq.oper.chan) 3732 return; 3733 3734 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3735 3736 switch (mvm_sta->pairwise_cipher) { 3737 case WLAN_CIPHER_SUITE_TKIP: 3738 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3739 break; 3740 case WLAN_CIPHER_SUITE_CCMP: 3741 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3742 break; 3743 case WLAN_CIPHER_SUITE_GCMP: 3744 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3745 break; 3746 case WLAN_CIPHER_SUITE_GCMP_256: 3747 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3748 break; 3749 case 0: 3750 /* open profile */ 3751 break; 3752 default: 3753 /* cipher not supported, don't send anything to iwlmei */ 3754 return; 3755 } 3756 3757 switch (mvmvif->rekey_data.akm) { 3758 case WLAN_AKM_SUITE_SAE & 0xff: 3759 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3760 break; 3761 case WLAN_AKM_SUITE_PSK & 0xff: 3762 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3763 break; 3764 case WLAN_AKM_SUITE_8021X & 0xff: 3765 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3766 break; 3767 case 0: 3768 /* open profile */ 3769 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3770 break; 3771 default: 3772 /* auth method / AKM not supported */ 3773 /* TODO: All the FT vesions of these? */ 3774 return; 3775 } 3776 3777 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3778 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3779 3780 /* TODO: add support for collocated AP data */ 3781 iwl_mei_host_associated(&conn_info, NULL); 3782 #endif 3783 } 3784 3785 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3786 struct ieee80211_vif *vif, 3787 bool force_assoc_off) 3788 { 3789 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3790 } 3791 3792 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3793 struct ieee80211_vif *vif, 3794 struct ieee80211_sta *sta, 3795 enum ieee80211_sta_state old_state, 3796 enum ieee80211_sta_state new_state) 3797 { 3798 static const struct iwl_mvm_sta_state_ops callbacks = { 3799 .add_sta = iwl_mvm_add_sta, 3800 .update_sta = iwl_mvm_update_sta, 3801 .rm_sta = iwl_mvm_rm_sta, 3802 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3803 }; 3804 3805 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3806 &callbacks); 3807 } 3808 3809 /* FIXME: temporary making two assumptions in all sta handling functions: 3810 * (1) when setting sta state, the link exists and protected 3811 * (2) if a link is valid in sta then it's valid in vif (can 3812 * use same index in the link array) 3813 */ 3814 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3815 struct ieee80211_vif *vif, 3816 struct ieee80211_sta *sta) 3817 { 3818 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3819 unsigned int link_id; 3820 3821 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3822 struct ieee80211_bss_conf *conf = 3823 link_conf_dereference_check(vif, link_id); 3824 struct ieee80211_link_sta *link_sta = 3825 link_sta_dereference_check(sta, link_id); 3826 3827 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3828 continue; 3829 3830 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3831 mvmvif->link[link_id]->phy_ctxt->channel->band); 3832 } 3833 } 3834 3835 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3836 struct ieee80211_vif *vif, 3837 struct ieee80211_sta *sta) 3838 { 3839 struct ieee80211_link_sta *link_sta; 3840 unsigned int link_id; 3841 3842 /* Beacon interval check - firmware will crash if the beacon 3843 * interval is less than 16. We can't avoid connecting at all, 3844 * so refuse the station state change, this will cause mac80211 3845 * to abandon attempts to connect to this AP, and eventually 3846 * wpa_s will blocklist the AP... 3847 */ 3848 3849 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3850 struct ieee80211_bss_conf *link_conf = 3851 link_conf_dereference_protected(vif, link_id); 3852 3853 if (!link_conf) 3854 continue; 3855 3856 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3857 IWL_ERR(mvm, 3858 "Beacon interval %d for AP %pM is too small\n", 3859 link_conf->beacon_int, link_sta->addr); 3860 return false; 3861 } 3862 3863 link_conf->he_support = link_sta->he_cap.has_he; 3864 } 3865 3866 return true; 3867 } 3868 3869 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3870 struct ieee80211_vif *vif, 3871 struct ieee80211_sta *sta, 3872 bool is_sta) 3873 { 3874 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3875 struct ieee80211_link_sta *link_sta; 3876 unsigned int link_id; 3877 3878 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3879 struct ieee80211_bss_conf *link_conf = 3880 link_conf_dereference_protected(vif, link_id); 3881 3882 if (!link_conf || !mvmvif->link[link_id]) 3883 continue; 3884 3885 link_conf->he_support = link_sta->he_cap.has_he; 3886 3887 if (is_sta) { 3888 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3889 if (link_sta->he_cap.has_he) 3890 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3891 link_id, 3892 link_conf); 3893 } 3894 } 3895 } 3896 3897 static int 3898 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3899 struct ieee80211_vif *vif, 3900 struct ieee80211_sta *sta, 3901 const struct iwl_mvm_sta_state_ops *callbacks) 3902 { 3903 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3904 struct ieee80211_link_sta *link_sta; 3905 unsigned int i; 3906 int ret; 3907 3908 lockdep_assert_held(&mvm->mutex); 3909 3910 if (vif->type == NL80211_IFTYPE_STATION && 3911 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3912 return -EINVAL; 3913 3914 if (sta->tdls && 3915 (vif->p2p || 3916 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT || 3917 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3918 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3919 return -EBUSY; 3920 } 3921 3922 ret = callbacks->add_sta(mvm, vif, sta); 3923 if (sta->tdls && ret == 0) { 3924 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3925 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3926 NL80211_TDLS_SETUP); 3927 } 3928 3929 if (ret) 3930 return ret; 3931 3932 for_each_sta_active_link(vif, sta, link_sta, i) 3933 link_sta->agg.max_rc_amsdu_len = 1; 3934 3935 ieee80211_sta_recalc_aggregates(sta); 3936 3937 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3938 mvmvif->ap_sta = sta; 3939 3940 /* 3941 * Initialize the rates here already - this really tells 3942 * the firmware only what the supported legacy rates are 3943 * (may be) since it's initialized already from what the 3944 * AP advertised in the beacon/probe response. This will 3945 * allow the firmware to send auth/assoc frames with one 3946 * of the supported rates already, rather than having to 3947 * use a mandatory rate. 3948 * If we're the AP, we'll just assume mandatory rates at 3949 * this point, but we know nothing about the STA anyway. 3950 */ 3951 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3952 3953 return 0; 3954 } 3955 3956 static int 3957 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3958 struct iwl_mvm *mvm, 3959 struct ieee80211_vif *vif, 3960 struct ieee80211_sta *sta, 3961 const struct iwl_mvm_sta_state_ops *callbacks) 3962 { 3963 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3964 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3965 struct ieee80211_link_sta *link_sta; 3966 unsigned int link_id; 3967 3968 lockdep_assert_held(&mvm->mutex); 3969 3970 if (vif->type == NL80211_IFTYPE_AP) { 3971 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3972 mvmvif->ap_assoc_sta_count++; 3973 callbacks->mac_ctxt_changed(mvm, vif, false); 3974 3975 /* since the below is not for MLD API, it's ok to use 3976 * the default bss_conf 3977 */ 3978 if (!mvm->mld_api_is_used && 3979 (vif->bss_conf.he_support && 3980 !iwlwifi_mod_params.disable_11ax)) 3981 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3982 } else if (vif->type == NL80211_IFTYPE_STATION) { 3983 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3984 3985 callbacks->mac_ctxt_changed(mvm, vif, false); 3986 3987 if (!mvm->mld_api_is_used) 3988 goto out; 3989 3990 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3991 struct ieee80211_bss_conf *link_conf = 3992 link_conf_dereference_protected(vif, link_id); 3993 3994 if (WARN_ON(!link_conf)) 3995 return -EINVAL; 3996 if (!mvmvif->link[link_id]) 3997 continue; 3998 3999 iwl_mvm_link_changed(mvm, vif, link_conf, 4000 LINK_CONTEXT_MODIFY_ALL & 4001 ~LINK_CONTEXT_MODIFY_ACTIVE, 4002 true); 4003 } 4004 } 4005 4006 out: 4007 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4008 4009 return callbacks->update_sta(mvm, vif, sta); 4010 } 4011 4012 static int 4013 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 4014 struct ieee80211_vif *vif, 4015 struct ieee80211_sta *sta, 4016 const struct iwl_mvm_sta_state_ops *callbacks) 4017 { 4018 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4019 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4020 4021 lockdep_assert_held(&mvm->mutex); 4022 4023 /* we don't support TDLS during DCM */ 4024 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4025 iwl_mvm_teardown_tdls_peers(mvm); 4026 4027 if (sta->tdls) { 4028 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4029 NL80211_TDLS_ENABLE_LINK); 4030 } else { 4031 /* enable beacon filtering */ 4032 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 4033 4034 mvmvif->authorized = 1; 4035 4036 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 4037 mvmvif->link_selection_res = vif->active_links; 4038 mvmvif->link_selection_primary = 4039 vif->active_links ? __ffs(vif->active_links) : 0; 4040 } 4041 4042 callbacks->mac_ctxt_changed(mvm, vif, false); 4043 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 4044 4045 memset(&mvmvif->last_esr_exit, 0, 4046 sizeof(mvmvif->last_esr_exit)); 4047 4048 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); 4049 4050 /* Block until FW notif will arrive */ 4051 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0); 4052 4053 /* when client is authorized (AP station marked as such), 4054 * try to enable the best link(s). 4055 */ 4056 if (vif->type == NL80211_IFTYPE_STATION && 4057 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4058 iwl_mvm_select_links(mvm, vif); 4059 } 4060 4061 mvm_sta->authorized = true; 4062 4063 /* MFP is set by default before the station is authorized. 4064 * Clear it here in case it's not used. 4065 */ 4066 if (!sta->mfp) { 4067 int ret = callbacks->update_sta(mvm, vif, sta); 4068 4069 if (ret) 4070 return ret; 4071 } 4072 4073 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4074 4075 return 0; 4076 } 4077 4078 static int 4079 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 4080 struct ieee80211_vif *vif, 4081 struct ieee80211_sta *sta, 4082 const struct iwl_mvm_sta_state_ops *callbacks) 4083 { 4084 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4085 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4086 4087 lockdep_assert_held(&mvm->mutex); 4088 4089 mvmsta->authorized = false; 4090 4091 /* once we move into assoc state, need to update rate scale to 4092 * disable using wide bandwidth 4093 */ 4094 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4095 4096 if (!sta->tdls) { 4097 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 4098 * yet to avoid sending high prio again for a little 4099 * time. 4100 */ 4101 mvmvif->authorized = 0; 4102 mvmvif->link_selection_res = 0; 4103 4104 /* disable beacon filtering */ 4105 iwl_mvm_disable_beacon_filter(mvm, vif); 4106 4107 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4108 &mvmvif->prevent_esr_done_wk); 4109 4110 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4111 &mvmvif->mlo_int_scan_wk); 4112 4113 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 4114 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4115 &mvmvif->unblock_esr_tmp_non_bss_wk); 4116 4117 /* No need for the periodic statistics anymore */ 4118 if (ieee80211_vif_is_mld(vif) && mvmvif->esr_active) 4119 iwl_mvm_request_periodic_system_statistics(mvm, false); 4120 } 4121 4122 return 0; 4123 } 4124 4125 /* Common part for MLD and non-MLD modes */ 4126 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4127 struct ieee80211_vif *vif, 4128 struct ieee80211_sta *sta, 4129 enum ieee80211_sta_state old_state, 4130 enum ieee80211_sta_state new_state, 4131 const struct iwl_mvm_sta_state_ops *callbacks) 4132 { 4133 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4134 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4135 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4136 struct ieee80211_link_sta *link_sta; 4137 unsigned int link_id; 4138 int ret; 4139 4140 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4141 sta->addr, old_state, new_state); 4142 4143 /* 4144 * If we are in a STA removal flow and in DQA mode: 4145 * 4146 * This is after the sync_rcu part, so the queues have already been 4147 * flushed. No more TXs on their way in mac80211's path, and no more in 4148 * the queues. 4149 * Also, we won't be getting any new TX frames for this station. 4150 * What we might have are deferred TX frames that need to be taken care 4151 * of. 4152 * 4153 * Drop any still-queued deferred-frame before removing the STA, and 4154 * make sure the worker is no longer handling frames for this STA. 4155 */ 4156 if (old_state == IEEE80211_STA_NONE && 4157 new_state == IEEE80211_STA_NOTEXIST) { 4158 flush_work(&mvm->add_stream_wk); 4159 4160 /* 4161 * No need to make sure deferred TX indication is off since the 4162 * worker will already remove it if it was on 4163 */ 4164 4165 /* 4166 * Additionally, reset the 40 MHz capability if we disconnected 4167 * from the AP now. 4168 */ 4169 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4170 4171 /* Also free dup data just in case any assertions below fail */ 4172 kfree(mvm_sta->dup_data); 4173 } 4174 4175 mutex_lock(&mvm->mutex); 4176 4177 /* this would be a mac80211 bug ... but don't crash, unless we had a 4178 * firmware crash while we were activating a link, in which case it is 4179 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4180 * recovery flow since we spit tons of error messages anyway. 4181 */ 4182 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4183 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4184 !mvmvif->link[link_id]->phy_ctxt)) { 4185 mutex_unlock(&mvm->mutex); 4186 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4187 &mvm->status) ? 0 : -EINVAL; 4188 } 4189 } 4190 4191 /* track whether or not the station is associated */ 4192 mvm_sta->sta_state = new_state; 4193 4194 if (old_state == IEEE80211_STA_NOTEXIST && 4195 new_state == IEEE80211_STA_NONE) { 4196 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4197 callbacks); 4198 if (ret < 0) 4199 goto out_unlock; 4200 } else if (old_state == IEEE80211_STA_NONE && 4201 new_state == IEEE80211_STA_AUTH) { 4202 /* 4203 * EBS may be disabled due to previous failures reported by FW. 4204 * Reset EBS status here assuming environment has been changed. 4205 */ 4206 mvm->last_ebs_successful = true; 4207 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4208 ret = 0; 4209 } else if (old_state == IEEE80211_STA_AUTH && 4210 new_state == IEEE80211_STA_ASSOC) { 4211 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4212 callbacks); 4213 } else if (old_state == IEEE80211_STA_ASSOC && 4214 new_state == IEEE80211_STA_AUTHORIZED) { 4215 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4216 callbacks); 4217 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4218 new_state == IEEE80211_STA_ASSOC) { 4219 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4220 callbacks); 4221 } else if (old_state == IEEE80211_STA_ASSOC && 4222 new_state == IEEE80211_STA_AUTH) { 4223 if (vif->type == NL80211_IFTYPE_AP) { 4224 mvmvif->ap_assoc_sta_count--; 4225 callbacks->mac_ctxt_changed(mvm, vif, false); 4226 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4227 iwl_mvm_stop_session_protection(mvm, vif); 4228 ret = 0; 4229 } else if (old_state == IEEE80211_STA_AUTH && 4230 new_state == IEEE80211_STA_NONE) { 4231 ret = 0; 4232 } else if (old_state == IEEE80211_STA_NONE && 4233 new_state == IEEE80211_STA_NOTEXIST) { 4234 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4235 iwl_mvm_stop_session_protection(mvm, vif); 4236 mvmvif->ap_sta = NULL; 4237 } 4238 ret = callbacks->rm_sta(mvm, vif, sta); 4239 if (sta->tdls) { 4240 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4241 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4242 NL80211_TDLS_DISABLE_LINK); 4243 } 4244 4245 if (unlikely(ret && 4246 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4247 &mvm->status))) 4248 ret = 0; 4249 } else { 4250 ret = -EIO; 4251 } 4252 out_unlock: 4253 mutex_unlock(&mvm->mutex); 4254 4255 if (sta->tdls && ret == 0) { 4256 if (old_state == IEEE80211_STA_NOTEXIST && 4257 new_state == IEEE80211_STA_NONE) 4258 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4259 else if (old_state == IEEE80211_STA_NONE && 4260 new_state == IEEE80211_STA_NOTEXIST) 4261 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4262 } 4263 4264 return ret; 4265 } 4266 4267 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4268 { 4269 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4270 4271 mvm->rts_threshold = value; 4272 4273 return 0; 4274 } 4275 4276 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4277 struct ieee80211_link_sta *link_sta, u32 changed) 4278 { 4279 struct ieee80211_sta *sta = link_sta->sta; 4280 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4281 4282 if (changed & (IEEE80211_RC_BW_CHANGED | 4283 IEEE80211_RC_SUPP_RATES_CHANGED | 4284 IEEE80211_RC_NSS_CHANGED)) 4285 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4286 4287 if (vif->type == NL80211_IFTYPE_STATION && 4288 changed & IEEE80211_RC_NSS_CHANGED) 4289 iwl_mvm_sf_update(mvm, vif, false); 4290 } 4291 4292 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4293 struct ieee80211_vif *vif, 4294 unsigned int link_id, u16 ac, 4295 const struct ieee80211_tx_queue_params *params) 4296 { 4297 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4298 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4299 4300 mvmvif->deflink.queue_params[ac] = *params; 4301 4302 /* 4303 * No need to update right away, we'll get BSS_CHANGED_QOS 4304 * The exception is P2P_DEVICE interface which needs immediate update. 4305 */ 4306 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4307 guard(mvm)(mvm); 4308 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4309 } 4310 return 0; 4311 } 4312 4313 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4314 struct ieee80211_vif *vif, 4315 struct ieee80211_prep_tx_info *info) 4316 { 4317 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4318 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4319 4320 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4321 return; 4322 4323 guard(mvm)(mvm); 4324 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4325 } 4326 4327 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4328 struct ieee80211_vif *vif, 4329 struct ieee80211_prep_tx_info *info) 4330 { 4331 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4332 4333 /* for successful cases (auth/assoc), don't cancel session protection */ 4334 if (info->success) 4335 return; 4336 4337 guard(mvm)(mvm); 4338 iwl_mvm_stop_session_protection(mvm, vif); 4339 } 4340 4341 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4342 struct ieee80211_vif *vif, 4343 struct cfg80211_sched_scan_request *req, 4344 struct ieee80211_scan_ies *ies) 4345 { 4346 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4347 4348 guard(mvm)(mvm); 4349 4350 if (!vif->cfg.idle) 4351 return -EBUSY; 4352 4353 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4354 } 4355 4356 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4357 struct ieee80211_vif *vif) 4358 { 4359 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4360 int ret; 4361 4362 mutex_lock(&mvm->mutex); 4363 4364 /* Due to a race condition, it's possible that mac80211 asks 4365 * us to stop a sched_scan when it's already stopped. This 4366 * can happen, for instance, if we stopped the scan ourselves, 4367 * called ieee80211_sched_scan_stopped() and the userspace called 4368 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4369 * could run. To handle this, simply return if the scan is 4370 * not running. 4371 */ 4372 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4373 mutex_unlock(&mvm->mutex); 4374 return 0; 4375 } 4376 4377 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4378 mutex_unlock(&mvm->mutex); 4379 iwl_mvm_wait_for_async_handlers(mvm); 4380 4381 return ret; 4382 } 4383 4384 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4385 enum set_key_cmd cmd, 4386 struct ieee80211_vif *vif, 4387 struct ieee80211_sta *sta, 4388 struct ieee80211_key_conf *key) 4389 { 4390 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4391 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4392 struct iwl_mvm_sta *mvmsta = NULL; 4393 struct iwl_mvm_key_pn *ptk_pn = NULL; 4394 int keyidx = key->keyidx; 4395 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4396 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4397 int ret, i; 4398 u8 key_offset; 4399 4400 if (sta) 4401 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4402 4403 switch (key->cipher) { 4404 case WLAN_CIPHER_SUITE_TKIP: 4405 if (!mvm->trans->trans_cfg->gen2) { 4406 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4407 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4408 } else if (vif->type == NL80211_IFTYPE_STATION) { 4409 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4410 } else { 4411 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4412 return -EOPNOTSUPP; 4413 } 4414 break; 4415 case WLAN_CIPHER_SUITE_CCMP: 4416 case WLAN_CIPHER_SUITE_GCMP: 4417 case WLAN_CIPHER_SUITE_GCMP_256: 4418 if (!iwl_mvm_has_new_tx_api(mvm)) 4419 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4420 break; 4421 case WLAN_CIPHER_SUITE_AES_CMAC: 4422 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4423 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4424 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4425 break; 4426 case WLAN_CIPHER_SUITE_WEP40: 4427 case WLAN_CIPHER_SUITE_WEP104: 4428 if (vif->type == NL80211_IFTYPE_STATION) 4429 break; 4430 if (iwl_mvm_has_new_tx_api(mvm)) 4431 return -EOPNOTSUPP; 4432 /* support HW crypto on TX */ 4433 return 0; 4434 default: 4435 return -EOPNOTSUPP; 4436 } 4437 4438 switch (cmd) { 4439 case SET_KEY: 4440 if (vif->type == NL80211_IFTYPE_STATION && 4441 (keyidx == 6 || keyidx == 7)) 4442 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4443 key); 4444 4445 if ((vif->type == NL80211_IFTYPE_ADHOC || 4446 vif->type == NL80211_IFTYPE_AP) && !sta) { 4447 /* 4448 * GTK on AP interface is a TX-only key, return 0; 4449 * on IBSS they're per-station and because we're lazy 4450 * we don't support them for RX, so do the same. 4451 * CMAC/GMAC in AP/IBSS modes must be done in software 4452 * on older NICs. 4453 * 4454 * Except, of course, beacon protection - it must be 4455 * offloaded since we just set a beacon template, and 4456 * then we must also offload the IGTK (not just BIGTK) 4457 * for firmware reasons. 4458 * 4459 * So just check for beacon protection - if we don't 4460 * have it we cannot get here with keyidx >= 6, and 4461 * if we do have it we need to send the key to FW in 4462 * all cases (CMAC/GMAC). 4463 */ 4464 if (!wiphy_ext_feature_isset(hw->wiphy, 4465 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4466 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4467 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4468 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4469 ret = -EOPNOTSUPP; 4470 break; 4471 } 4472 4473 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4474 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4475 !iwl_mvm_has_new_tx_api(mvm)) { 4476 key->hw_key_idx = STA_KEY_IDX_INVALID; 4477 ret = 0; 4478 break; 4479 } 4480 4481 if (!mvmvif->ap_ibss_active) { 4482 for (i = 0; 4483 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4484 i++) { 4485 if (!mvmvif->ap_early_keys[i]) { 4486 mvmvif->ap_early_keys[i] = key; 4487 break; 4488 } 4489 } 4490 4491 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4492 ret = -ENOSPC; 4493 else 4494 ret = 0; 4495 4496 break; 4497 } 4498 } 4499 4500 /* During FW restart, in order to restore the state as it was, 4501 * don't try to reprogram keys we previously failed for. 4502 */ 4503 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4504 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4505 IWL_DEBUG_MAC80211(mvm, 4506 "skip invalid idx key programming during restart\n"); 4507 ret = 0; 4508 break; 4509 } 4510 4511 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4512 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4513 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4514 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4515 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4516 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4517 struct ieee80211_key_seq seq; 4518 int tid, q; 4519 4520 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4521 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4522 mvm->trans->num_rx_queues), 4523 GFP_KERNEL); 4524 if (!ptk_pn) { 4525 ret = -ENOMEM; 4526 break; 4527 } 4528 4529 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4530 ieee80211_get_key_rx_seq(key, tid, &seq); 4531 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4532 memcpy(ptk_pn->q[q].pn[tid], 4533 seq.ccmp.pn, 4534 IEEE80211_CCMP_PN_LEN); 4535 } 4536 4537 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4538 } 4539 4540 /* in HW restart reuse the index, otherwise request a new one */ 4541 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4542 key_offset = key->hw_key_idx; 4543 else 4544 key_offset = STA_KEY_IDX_INVALID; 4545 4546 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4547 mvmsta->pairwise_cipher = key->cipher; 4548 4549 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4550 sta ? sta->addr : NULL, key->keyidx); 4551 4552 if (sec_key_ver) 4553 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4554 else 4555 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4556 4557 if (ret) { 4558 IWL_WARN(mvm, "set key failed\n"); 4559 key->hw_key_idx = STA_KEY_IDX_INVALID; 4560 if (ptk_pn) { 4561 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4562 kfree(ptk_pn); 4563 } 4564 /* 4565 * can't add key for RX, but we don't need it 4566 * in the device for TX so still return 0, 4567 * unless we have new TX API where we cannot 4568 * put key material into the TX_CMD 4569 */ 4570 if (iwl_mvm_has_new_tx_api(mvm)) 4571 ret = -EOPNOTSUPP; 4572 else 4573 ret = 0; 4574 } 4575 4576 break; 4577 case DISABLE_KEY: 4578 if (vif->type == NL80211_IFTYPE_STATION && 4579 (keyidx == 6 || keyidx == 7)) 4580 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4581 NULL); 4582 4583 ret = -ENOENT; 4584 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4585 if (mvmvif->ap_early_keys[i] == key) { 4586 mvmvif->ap_early_keys[i] = NULL; 4587 ret = 0; 4588 } 4589 } 4590 4591 /* found in pending list - don't do anything else */ 4592 if (ret == 0) 4593 break; 4594 4595 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4596 ret = 0; 4597 break; 4598 } 4599 4600 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4601 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4602 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4603 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4604 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4605 ptk_pn = rcu_dereference_protected( 4606 mvmsta->ptk_pn[keyidx], 4607 lockdep_is_held(&mvm->mutex)); 4608 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4609 if (ptk_pn) 4610 kfree_rcu(ptk_pn, rcu_head); 4611 } 4612 4613 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4614 if (sec_key_ver) 4615 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4616 else 4617 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4618 break; 4619 default: 4620 ret = -EINVAL; 4621 } 4622 4623 return ret; 4624 } 4625 4626 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4627 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4628 struct ieee80211_key_conf *key) 4629 { 4630 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4631 4632 guard(mvm)(mvm); 4633 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4634 } 4635 4636 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4637 struct ieee80211_vif *vif, 4638 struct ieee80211_key_conf *keyconf, 4639 struct ieee80211_sta *sta, 4640 u32 iv32, u16 *phase1key) 4641 { 4642 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4643 4644 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4645 return; 4646 4647 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4648 } 4649 4650 4651 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4652 struct iwl_rx_packet *pkt, void *data) 4653 { 4654 struct iwl_mvm *mvm = 4655 container_of(notif_wait, struct iwl_mvm, notif_wait); 4656 struct iwl_hs20_roc_res *resp; 4657 int resp_len = iwl_rx_packet_payload_len(pkt); 4658 struct iwl_mvm_time_event_data *te_data = data; 4659 4660 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4661 return true; 4662 4663 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4664 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4665 return true; 4666 } 4667 4668 resp = (void *)pkt->data; 4669 4670 IWL_DEBUG_TE(mvm, 4671 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4672 resp->status, resp->event_unique_id); 4673 4674 te_data->uid = le32_to_cpu(resp->event_unique_id); 4675 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4676 te_data->uid); 4677 4678 spin_lock_bh(&mvm->time_event_lock); 4679 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4680 spin_unlock_bh(&mvm->time_event_lock); 4681 4682 return true; 4683 } 4684 4685 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4686 struct ieee80211_channel *channel, 4687 struct ieee80211_vif *vif, 4688 int duration) 4689 { 4690 int res; 4691 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4692 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4693 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4694 struct iwl_notification_wait wait_time_event; 4695 u32 req_dur, delay; 4696 struct iwl_hs20_roc_req aux_roc_req = { 4697 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4698 .id_and_color = 4699 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4700 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4701 }; 4702 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4703 &aux_roc_req.channel_info); 4704 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4705 4706 /* Set the channel info data */ 4707 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4708 iwl_mvm_phy_band_from_nl80211(channel->band), 4709 IWL_PHY_CHANNEL_MODE20, 4710 0); 4711 4712 /* Set the time and duration */ 4713 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4714 4715 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4716 tail->duration = cpu_to_le32(req_dur); 4717 tail->apply_time_max_delay = cpu_to_le32(delay); 4718 4719 IWL_DEBUG_TE(mvm, 4720 "ROC: Requesting to remain on channel %u for %ums\n", 4721 channel->hw_value, req_dur); 4722 IWL_DEBUG_TE(mvm, 4723 "\t(requested = %ums, max_delay = %ums)\n", 4724 duration, delay); 4725 4726 /* Set the node address */ 4727 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4728 4729 lockdep_assert_held(&mvm->mutex); 4730 4731 spin_lock_bh(&mvm->time_event_lock); 4732 4733 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4734 spin_unlock_bh(&mvm->time_event_lock); 4735 return -EIO; 4736 } 4737 4738 te_data->vif = vif; 4739 te_data->duration = duration; 4740 te_data->id = HOT_SPOT_CMD; 4741 4742 spin_unlock_bh(&mvm->time_event_lock); 4743 4744 /* 4745 * Use a notification wait, which really just processes the 4746 * command response and doesn't wait for anything, in order 4747 * to be able to process the response and get the UID inside 4748 * the RX path. Using CMD_WANT_SKB doesn't work because it 4749 * stores the buffer and then wakes up this thread, by which 4750 * time another notification (that the time event started) 4751 * might already be processed unsuccessfully. 4752 */ 4753 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4754 time_event_response, 4755 ARRAY_SIZE(time_event_response), 4756 iwl_mvm_rx_aux_roc, te_data); 4757 4758 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4759 &aux_roc_req); 4760 4761 if (res) { 4762 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4763 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4764 goto out_clear_te; 4765 } 4766 4767 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4768 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4769 /* should never fail */ 4770 WARN_ON_ONCE(res); 4771 4772 if (res) { 4773 out_clear_te: 4774 spin_lock_bh(&mvm->time_event_lock); 4775 iwl_mvm_te_clear_data(mvm, te_data); 4776 spin_unlock_bh(&mvm->time_event_lock); 4777 } 4778 4779 return res; 4780 } 4781 4782 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4783 { 4784 int ret = 0; 4785 4786 lockdep_assert_held(&mvm->mutex); 4787 4788 if (!fw_has_capa(&mvm->fw->ucode_capa, 4789 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4790 IWL_ERR(mvm, "hotspot not supported\n"); 4791 return -EINVAL; 4792 } 4793 4794 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4795 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4796 WARN(ret, "Failed to allocate aux station"); 4797 } 4798 4799 return ret; 4800 } 4801 4802 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4803 { 4804 int ret; 4805 4806 lockdep_assert_held(&mvm->mutex); 4807 4808 ret = iwl_mvm_binding_add_vif(mvm, vif); 4809 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4810 return ret; 4811 4812 /* The station and queue allocation must be done only after the binding 4813 * is done, as otherwise the FW might incorrectly configure its state. 4814 */ 4815 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4816 } 4817 4818 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4819 struct ieee80211_vif *vif, 4820 struct ieee80211_channel *channel, 4821 int duration, 4822 enum ieee80211_roc_type type) 4823 { 4824 static const struct iwl_mvm_roc_ops ops = { 4825 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4826 .link = iwl_mvm_roc_link, 4827 }; 4828 4829 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4830 } 4831 4832 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4833 struct ieee80211_channel *channel, 4834 struct ieee80211_vif *vif, 4835 int duration) 4836 { 4837 int ret; 4838 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4839 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4840 IWL_FW_CMD_VER_UNKNOWN); 4841 4842 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4843 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4844 } else if (fw_ver >= 3) { 4845 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4846 ROC_ACTIVITY_HOTSPOT); 4847 } else { 4848 ret = -EOPNOTSUPP; 4849 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4850 } 4851 4852 return ret; 4853 } 4854 4855 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4856 struct ieee80211_channel *channel, 4857 struct ieee80211_vif *vif, 4858 int duration, 4859 enum ieee80211_roc_type type) 4860 { 4861 enum iwl_roc_activity activity; 4862 int ret; 4863 4864 lockdep_assert_held(&mvm->mutex); 4865 4866 switch (type) { 4867 case IEEE80211_ROC_TYPE_NORMAL: 4868 activity = ROC_ACTIVITY_P2P_DISC; 4869 break; 4870 case IEEE80211_ROC_TYPE_MGMT_TX: 4871 activity = ROC_ACTIVITY_P2P_NEG; 4872 break; 4873 default: 4874 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4875 return -EINVAL; 4876 } 4877 4878 ret = iwl_mvm_mld_add_aux_sta(mvm, 4879 iwl_mvm_get_lmac_id(mvm, channel->band)); 4880 if (ret) 4881 return ret; 4882 4883 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4884 } 4885 4886 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4887 struct ieee80211_vif *vif, 4888 struct ieee80211_channel *channel) 4889 { 4890 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4891 struct cfg80211_chan_def chandef; 4892 int i; 4893 4894 lockdep_assert_held(&mvm->mutex); 4895 4896 if (mvmvif->deflink.phy_ctxt && 4897 channel == mvmvif->deflink.phy_ctxt->channel) 4898 return 0; 4899 4900 /* Try using a PHY context that is already in use */ 4901 for (i = 0; i < NUM_PHY_CTX; i++) { 4902 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4903 4904 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4905 continue; 4906 4907 if (channel == phy_ctxt->channel) { 4908 if (mvmvif->deflink.phy_ctxt) 4909 iwl_mvm_phy_ctxt_unref(mvm, 4910 mvmvif->deflink.phy_ctxt); 4911 4912 mvmvif->deflink.phy_ctxt = phy_ctxt; 4913 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4914 return 0; 4915 } 4916 } 4917 4918 /* We already have a phy_ctxt, but it's not on the right channel */ 4919 if (mvmvif->deflink.phy_ctxt) 4920 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4921 4922 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4923 if (!mvmvif->deflink.phy_ctxt) 4924 return -ENOSPC; 4925 4926 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4927 4928 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4929 &chandef, NULL, 1, 1); 4930 } 4931 4932 /* Execute the common part for MLD and non-MLD modes */ 4933 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4934 struct ieee80211_channel *channel, int duration, 4935 enum ieee80211_roc_type type, 4936 const struct iwl_mvm_roc_ops *ops) 4937 { 4938 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4939 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); 4940 u32 lmac_id; 4941 int ret; 4942 4943 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4944 duration, type); 4945 4946 /* 4947 * Flush the done work, just in case it's still pending, so that 4948 * the work it does can complete and we can accept new frames. 4949 */ 4950 flush_work(&mvm->roc_done_wk); 4951 4952 if (!IS_ERR_OR_NULL(bss_vif)) { 4953 ret = iwl_mvm_block_esr_sync(mvm, bss_vif, 4954 IWL_MVM_ESR_BLOCKED_ROC); 4955 if (ret) 4956 return ret; 4957 } 4958 4959 guard(mvm)(mvm); 4960 4961 switch (vif->type) { 4962 case NL80211_IFTYPE_STATION: 4963 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4964 4965 /* Use aux roc framework (HS20) */ 4966 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4967 if (!ret) 4968 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4969 return ret; 4970 case NL80211_IFTYPE_P2P_DEVICE: 4971 /* handle below */ 4972 break; 4973 default: 4974 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4975 return -EINVAL; 4976 } 4977 4978 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4979 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4980 return ret; 4981 } 4982 4983 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4984 if (ret) 4985 return ret; 4986 4987 ret = ops->link(mvm, vif); 4988 if (ret) 4989 return ret; 4990 4991 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4992 } 4993 4994 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4995 struct ieee80211_vif *vif) 4996 { 4997 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4998 4999 IWL_DEBUG_MAC80211(mvm, "enter\n"); 5000 5001 iwl_mvm_stop_roc(mvm, vif); 5002 5003 IWL_DEBUG_MAC80211(mvm, "leave\n"); 5004 return 0; 5005 } 5006 5007 struct iwl_mvm_ftm_responder_iter_data { 5008 bool responder; 5009 struct ieee80211_chanctx_conf *ctx; 5010 }; 5011 5012 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 5013 struct ieee80211_vif *vif) 5014 { 5015 struct iwl_mvm_ftm_responder_iter_data *data = _data; 5016 5017 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx && 5018 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 5019 data->responder = true; 5020 } 5021 5022 bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 5023 struct ieee80211_chanctx_conf *ctx) 5024 { 5025 struct iwl_mvm_ftm_responder_iter_data data = { 5026 .responder = false, 5027 .ctx = ctx, 5028 }; 5029 5030 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 5031 IEEE80211_IFACE_ITER_NORMAL, 5032 iwl_mvm_ftm_responder_chanctx_iter, 5033 &data); 5034 return data.responder; 5035 } 5036 5037 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 5038 struct ieee80211_chanctx_conf *ctx) 5039 { 5040 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5041 struct iwl_mvm_phy_ctxt *phy_ctxt; 5042 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5043 int ret; 5044 5045 lockdep_assert_held(&mvm->mutex); 5046 5047 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 5048 5049 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 5050 if (!phy_ctxt) { 5051 ret = -ENOSPC; 5052 goto out; 5053 } 5054 5055 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 5056 ctx->rx_chains_static, 5057 ctx->rx_chains_dynamic); 5058 if (ret) { 5059 IWL_ERR(mvm, "Failed to add PHY context\n"); 5060 goto out; 5061 } 5062 5063 *phy_ctxt_id = phy_ctxt->id; 5064 out: 5065 return ret; 5066 } 5067 5068 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 5069 struct ieee80211_chanctx_conf *ctx) 5070 { 5071 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5072 5073 guard(mvm)(mvm); 5074 return __iwl_mvm_add_chanctx(mvm, ctx); 5075 } 5076 5077 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 5078 struct ieee80211_chanctx_conf *ctx) 5079 { 5080 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5081 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5082 5083 lockdep_assert_held(&mvm->mutex); 5084 5085 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 5086 } 5087 5088 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 5089 struct ieee80211_chanctx_conf *ctx) 5090 { 5091 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5092 5093 guard(mvm)(mvm); 5094 __iwl_mvm_remove_chanctx(mvm, ctx); 5095 } 5096 5097 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 5098 struct ieee80211_chanctx_conf *ctx, u32 changed) 5099 { 5100 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5101 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5102 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5103 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5104 5105 if (WARN_ONCE((phy_ctxt->ref > 1) && 5106 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 5107 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 5108 IEEE80211_CHANCTX_CHANGE_RADAR | 5109 IEEE80211_CHANCTX_CHANGE_MIN_DEF)), 5110 "Cannot change PHY. Ref=%d, changed=0x%X\n", 5111 phy_ctxt->ref, changed)) 5112 return; 5113 5114 guard(mvm)(mvm); 5115 5116 /* we are only changing the min_width, may be a noop */ 5117 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) { 5118 if (phy_ctxt->width == def->width) 5119 return; 5120 5121 /* we are just toggling between 20_NOHT and 20 */ 5122 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5123 def->width <= NL80211_CHAN_WIDTH_20) 5124 return; 5125 } 5126 5127 iwl_mvm_bt_coex_vif_change(mvm); 5128 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5129 ctx->rx_chains_static, 5130 ctx->rx_chains_dynamic); 5131 } 5132 5133 /* 5134 * This function executes the common part for MLD and non-MLD modes. 5135 * 5136 * Returns true if we're done assigning the chanctx 5137 * (either on failure or success) 5138 */ 5139 static bool 5140 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5141 struct ieee80211_vif *vif, 5142 struct ieee80211_chanctx_conf *ctx, 5143 bool switching_chanctx, int *ret) 5144 { 5145 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5146 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5147 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5148 5149 lockdep_assert_held(&mvm->mutex); 5150 5151 mvmvif->deflink.phy_ctxt = phy_ctxt; 5152 5153 switch (vif->type) { 5154 case NL80211_IFTYPE_AP: 5155 /* only needed if we're switching chanctx (i.e. during CSA) */ 5156 if (switching_chanctx) { 5157 mvmvif->ap_ibss_active = true; 5158 break; 5159 } 5160 fallthrough; 5161 case NL80211_IFTYPE_ADHOC: 5162 /* 5163 * The AP binding flow is handled as part of the start_ap flow 5164 * (in bss_info_changed), similarly for IBSS. 5165 */ 5166 *ret = 0; 5167 return true; 5168 case NL80211_IFTYPE_STATION: 5169 break; 5170 case NL80211_IFTYPE_MONITOR: 5171 /* always disable PS when a monitor interface is active */ 5172 mvmvif->ps_disabled = true; 5173 break; 5174 default: 5175 *ret = -EINVAL; 5176 return true; 5177 } 5178 return false; 5179 } 5180 5181 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5182 struct ieee80211_vif *vif, 5183 struct ieee80211_bss_conf *link_conf, 5184 struct ieee80211_chanctx_conf *ctx, 5185 bool switching_chanctx) 5186 { 5187 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5188 int ret; 5189 5190 if (WARN_ON(!link_conf)) 5191 return -EINVAL; 5192 5193 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5194 switching_chanctx, &ret)) 5195 goto out; 5196 5197 ret = iwl_mvm_binding_add_vif(mvm, vif); 5198 if (ret) 5199 goto out; 5200 5201 /* 5202 * Power state must be updated before quotas, 5203 * otherwise fw will complain. 5204 */ 5205 iwl_mvm_power_update_mac(mvm); 5206 5207 /* Setting the quota at this stage is only required for monitor 5208 * interfaces. For the other types, the bss_info changed flow 5209 * will handle quota settings. 5210 */ 5211 if (vif->type == NL80211_IFTYPE_MONITOR) { 5212 mvmvif->monitor_active = true; 5213 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5214 if (ret) 5215 goto out_remove_binding; 5216 5217 ret = iwl_mvm_add_snif_sta(mvm, vif); 5218 if (ret) 5219 goto out_remove_binding; 5220 5221 } 5222 5223 /* Handle binding during CSA */ 5224 if (vif->type == NL80211_IFTYPE_AP) { 5225 iwl_mvm_update_quotas(mvm, false, NULL); 5226 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5227 } 5228 5229 if (vif->type == NL80211_IFTYPE_STATION) { 5230 if (!switching_chanctx) { 5231 mvmvif->csa_bcn_pending = false; 5232 goto out; 5233 } 5234 5235 mvmvif->csa_bcn_pending = true; 5236 5237 if (!fw_has_capa(&mvm->fw->ucode_capa, 5238 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5239 u32 duration = 5 * vif->bss_conf.beacon_int; 5240 5241 /* Protect the session to make sure we hear the first 5242 * beacon on the new channel. 5243 */ 5244 iwl_mvm_protect_session(mvm, vif, duration, duration, 5245 vif->bss_conf.beacon_int / 2, 5246 true); 5247 } 5248 5249 iwl_mvm_update_quotas(mvm, false, NULL); 5250 5251 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5252 link_conf, 5253 false); 5254 } 5255 5256 goto out; 5257 5258 out_remove_binding: 5259 iwl_mvm_binding_remove_vif(mvm, vif); 5260 iwl_mvm_power_update_mac(mvm); 5261 out: 5262 if (ret) 5263 mvmvif->deflink.phy_ctxt = NULL; 5264 return ret; 5265 } 5266 5267 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5268 struct ieee80211_vif *vif, 5269 struct ieee80211_bss_conf *link_conf, 5270 struct ieee80211_chanctx_conf *ctx) 5271 { 5272 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5273 5274 guard(mvm)(mvm); 5275 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5276 } 5277 5278 /* 5279 * This function executes the common part for MLD and non-MLD modes. 5280 * 5281 * Returns if chanctx unassign chanctx is done 5282 * (either on failure or success) 5283 */ 5284 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5285 struct ieee80211_vif *vif, 5286 bool switching_chanctx) 5287 { 5288 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5289 5290 lockdep_assert_held(&mvm->mutex); 5291 iwl_mvm_remove_time_event(mvm, mvmvif, 5292 &mvmvif->time_event_data); 5293 5294 switch (vif->type) { 5295 case NL80211_IFTYPE_ADHOC: 5296 return true; 5297 case NL80211_IFTYPE_MONITOR: 5298 mvmvif->monitor_active = false; 5299 mvmvif->ps_disabled = false; 5300 break; 5301 case NL80211_IFTYPE_AP: 5302 /* This part is triggered only during CSA */ 5303 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5304 return true; 5305 5306 mvmvif->csa_countdown = false; 5307 5308 /* Set CS bit on all the stations */ 5309 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5310 5311 /* Save blocked iface, the timeout is set on the next beacon */ 5312 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5313 5314 mvmvif->ap_ibss_active = false; 5315 break; 5316 default: 5317 break; 5318 } 5319 return false; 5320 } 5321 5322 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5323 struct ieee80211_vif *vif, 5324 struct ieee80211_bss_conf *link_conf, 5325 struct ieee80211_chanctx_conf *ctx, 5326 bool switching_chanctx) 5327 { 5328 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5329 struct ieee80211_vif *disabled_vif = NULL; 5330 5331 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5332 goto out; 5333 5334 if (vif->type == NL80211_IFTYPE_MONITOR) 5335 iwl_mvm_rm_snif_sta(mvm, vif); 5336 5337 5338 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5339 disabled_vif = vif; 5340 if (!fw_has_capa(&mvm->fw->ucode_capa, 5341 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5342 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5343 } 5344 5345 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5346 iwl_mvm_binding_remove_vif(mvm, vif); 5347 5348 out: 5349 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5350 switching_chanctx) 5351 return; 5352 mvmvif->deflink.phy_ctxt = NULL; 5353 iwl_mvm_power_update_mac(mvm); 5354 } 5355 5356 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5357 struct ieee80211_vif *vif, 5358 struct ieee80211_bss_conf *link_conf, 5359 struct ieee80211_chanctx_conf *ctx) 5360 { 5361 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5362 5363 guard(mvm)(mvm); 5364 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5365 } 5366 5367 static int 5368 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5369 struct ieee80211_vif_chanctx_switch *vifs, 5370 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5371 { 5372 int ret; 5373 5374 guard(mvm)(mvm); 5375 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5376 vifs[0].old_ctx, true); 5377 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5378 5379 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5380 if (ret) { 5381 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5382 goto out_reassign; 5383 } 5384 5385 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5386 vifs[0].new_ctx, true); 5387 if (ret) { 5388 IWL_ERR(mvm, 5389 "failed to assign new_ctx during channel switch\n"); 5390 goto out_remove; 5391 } 5392 5393 /* we don't support TDLS during DCM - can be caused by channel switch */ 5394 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5395 iwl_mvm_teardown_tdls_peers(mvm); 5396 5397 return 0; 5398 5399 out_remove: 5400 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5401 5402 out_reassign: 5403 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5404 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5405 goto out_restart; 5406 } 5407 5408 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5409 vifs[0].old_ctx, true)) { 5410 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5411 goto out_restart; 5412 } 5413 5414 return ret; 5415 5416 out_restart: 5417 /* things keep failing, better restart the hw */ 5418 iwl_mvm_nic_restart(mvm, false); 5419 return ret; 5420 } 5421 5422 static int 5423 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5424 struct ieee80211_vif_chanctx_switch *vifs, 5425 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5426 { 5427 int ret; 5428 5429 guard(mvm)(mvm); 5430 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5431 vifs[0].old_ctx, true); 5432 5433 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5434 vifs[0].new_ctx, true); 5435 if (ret) { 5436 IWL_ERR(mvm, 5437 "failed to assign new_ctx during channel switch\n"); 5438 goto out_reassign; 5439 } 5440 5441 return 0; 5442 5443 out_reassign: 5444 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5445 vifs[0].old_ctx, true)) { 5446 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5447 goto out_restart; 5448 } 5449 5450 return ret; 5451 5452 out_restart: 5453 /* things keep failing, better restart the hw */ 5454 iwl_mvm_nic_restart(mvm, false); 5455 return ret; 5456 } 5457 5458 /* Execute the common part for both MLD and non-MLD modes */ 5459 int 5460 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5461 struct ieee80211_vif_chanctx_switch *vifs, 5462 int n_vifs, 5463 enum ieee80211_chanctx_switch_mode mode, 5464 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5465 { 5466 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5467 int ret; 5468 5469 /* we only support a single-vif right now */ 5470 if (n_vifs > 1) 5471 return -EOPNOTSUPP; 5472 5473 switch (mode) { 5474 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5475 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5476 break; 5477 case CHANCTX_SWMODE_REASSIGN_VIF: 5478 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5479 break; 5480 default: 5481 ret = -EOPNOTSUPP; 5482 break; 5483 } 5484 5485 return ret; 5486 } 5487 5488 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5489 struct ieee80211_vif_chanctx_switch *vifs, 5490 int n_vifs, 5491 enum ieee80211_chanctx_switch_mode mode) 5492 { 5493 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5494 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5495 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5496 }; 5497 5498 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5499 } 5500 5501 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5502 { 5503 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5504 5505 return mvm->ibss_manager; 5506 } 5507 5508 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5509 bool set) 5510 { 5511 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5512 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5513 5514 if (!mvm_sta || !mvm_sta->vif) { 5515 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5516 return -EINVAL; 5517 } 5518 5519 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5520 &mvm_sta->vif->bss_conf); 5521 } 5522 5523 #ifdef CONFIG_NL80211_TESTMODE 5524 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5525 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5526 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5527 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5528 }; 5529 5530 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5531 struct ieee80211_vif *vif, 5532 void *data, int len) 5533 { 5534 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5535 int err; 5536 u32 noa_duration; 5537 5538 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5539 iwl_mvm_tm_policy, NULL); 5540 if (err) 5541 return err; 5542 5543 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5544 return -EINVAL; 5545 5546 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5547 case IWL_MVM_TM_CMD_SET_NOA: 5548 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5549 !vif->bss_conf.enable_beacon || 5550 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5551 return -EINVAL; 5552 5553 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5554 if (noa_duration >= vif->bss_conf.beacon_int) 5555 return -EINVAL; 5556 5557 mvm->noa_duration = noa_duration; 5558 mvm->noa_vif = vif; 5559 5560 return iwl_mvm_update_quotas(mvm, true, NULL); 5561 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5562 /* must be associated client vif - ignore authorized */ 5563 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5564 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5565 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5566 return -EINVAL; 5567 5568 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5569 return iwl_mvm_enable_beacon_filter(mvm, vif); 5570 return iwl_mvm_disable_beacon_filter(mvm, vif); 5571 } 5572 5573 return -EOPNOTSUPP; 5574 } 5575 5576 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5577 struct ieee80211_vif *vif, 5578 void *data, int len) 5579 { 5580 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5581 5582 guard(mvm)(mvm); 5583 return __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5584 } 5585 #endif 5586 5587 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5588 struct ieee80211_channel_switch *chsw) 5589 { 5590 /* By implementing this operation, we prevent mac80211 from 5591 * starting its own channel switch timer, so that we can call 5592 * ieee80211_chswitch_done() ourselves at the right time 5593 * (which is when the absence time event starts). 5594 */ 5595 5596 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5597 "dummy channel switch op\n"); 5598 } 5599 5600 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5601 struct ieee80211_vif *vif, 5602 struct ieee80211_channel_switch *chsw) 5603 { 5604 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5605 struct iwl_chan_switch_te_cmd cmd = { 5606 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5607 mvmvif->color)), 5608 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5609 .tsf = cpu_to_le32(chsw->timestamp), 5610 .cs_count = chsw->count, 5611 .cs_mode = chsw->block_tx, 5612 }; 5613 5614 lockdep_assert_held(&mvm->mutex); 5615 5616 if (chsw->delay) 5617 cmd.cs_delayed_bcn_count = 5618 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5619 5620 return iwl_mvm_send_cmd_pdu(mvm, 5621 WIDE_ID(MAC_CONF_GROUP, 5622 CHANNEL_SWITCH_TIME_EVENT_CMD), 5623 0, sizeof(cmd), &cmd); 5624 } 5625 5626 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5627 struct ieee80211_vif *vif, 5628 struct ieee80211_channel_switch *chsw) 5629 { 5630 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5631 u32 apply_time; 5632 5633 /* Schedule the time event to a bit before beacon 1, 5634 * to make sure we're in the new channel when the 5635 * GO/AP arrives. In case count <= 1 immediately schedule the 5636 * TE (this might result with some packet loss or connection 5637 * loss). 5638 */ 5639 if (chsw->count <= 1) 5640 apply_time = 0; 5641 else 5642 apply_time = chsw->device_timestamp + 5643 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5644 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5645 5646 if (chsw->block_tx) 5647 iwl_mvm_csa_client_absent(mvm, vif); 5648 5649 if (mvmvif->bf_enabled) { 5650 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5651 5652 if (ret) 5653 return ret; 5654 } 5655 5656 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5657 apply_time); 5658 5659 return 0; 5660 } 5661 5662 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5663 { 5664 int i; 5665 5666 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5667 struct iwl_mvm_txq *mvmtxq = 5668 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5669 5670 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5671 } 5672 } 5673 5674 #define IWL_MAX_CSA_BLOCK_TX 1500 5675 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5676 struct ieee80211_vif *vif, 5677 struct ieee80211_channel_switch *chsw) 5678 { 5679 struct ieee80211_vif *csa_vif; 5680 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5681 struct iwl_mvm_txq *mvmtxq; 5682 int ret; 5683 5684 lockdep_assert_held(&mvm->mutex); 5685 5686 mvmvif->csa_failed = false; 5687 mvmvif->csa_blocks_tx = false; 5688 5689 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5690 chsw->chandef.center_freq1); 5691 5692 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5693 ieee80211_vif_to_wdev(vif), 5694 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5695 5696 switch (vif->type) { 5697 case NL80211_IFTYPE_AP: 5698 csa_vif = 5699 rcu_dereference_protected(mvm->csa_vif, 5700 lockdep_is_held(&mvm->mutex)); 5701 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5702 "Another CSA is already in progress")) 5703 return -EBUSY; 5704 5705 /* we still didn't unblock tx. prevent new CS meanwhile */ 5706 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5707 lockdep_is_held(&mvm->mutex))) 5708 return -EBUSY; 5709 5710 rcu_assign_pointer(mvm->csa_vif, vif); 5711 5712 if (WARN_ONCE(mvmvif->csa_countdown, 5713 "Previous CSA countdown didn't complete")) 5714 return -EBUSY; 5715 5716 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5717 5718 if (!chsw->block_tx) 5719 break; 5720 /* don't need blocking in driver otherwise - mac80211 will do */ 5721 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5722 break; 5723 5724 mvmvif->csa_blocks_tx = true; 5725 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5726 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5727 ieee80211_iterate_stations_atomic(mvm->hw, 5728 iwl_mvm_csa_block_txqs, 5729 NULL); 5730 break; 5731 case NL80211_IFTYPE_STATION: 5732 mvmvif->csa_blocks_tx = chsw->block_tx; 5733 5734 /* 5735 * In the new flow FW is in charge of timing the switch so there 5736 * is no need for all of this 5737 */ 5738 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5739 CHANNEL_SWITCH_ERROR_NOTIF, 5740 0)) 5741 break; 5742 5743 /* 5744 * We haven't configured the firmware to be associated yet since 5745 * we don't know the dtim period. In this case, the firmware can't 5746 * track the beacons. 5747 */ 5748 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5749 return -EBUSY; 5750 5751 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5752 hweight16(vif->valid_links) <= 1) 5753 schedule_delayed_work(&mvmvif->csa_work, 0); 5754 5755 if (chsw->block_tx) { 5756 /* 5757 * In case of undetermined / long time with immediate 5758 * quiet monitor status to gracefully disconnect 5759 */ 5760 if (!chsw->count || 5761 chsw->count * vif->bss_conf.beacon_int > 5762 IWL_MAX_CSA_BLOCK_TX) 5763 schedule_delayed_work(&mvmvif->csa_work, 5764 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5765 } 5766 5767 if (!fw_has_capa(&mvm->fw->ucode_capa, 5768 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5769 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5770 if (ret) 5771 return ret; 5772 } else { 5773 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5774 } 5775 5776 mvmvif->csa_count = chsw->count; 5777 mvmvif->csa_misbehave = false; 5778 break; 5779 default: 5780 break; 5781 } 5782 5783 mvmvif->ps_disabled = true; 5784 5785 ret = iwl_mvm_power_update_ps(mvm); 5786 if (ret) 5787 return ret; 5788 5789 /* we won't be on this channel any longer */ 5790 iwl_mvm_teardown_tdls_peers(mvm); 5791 5792 return ret; 5793 } 5794 5795 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5796 struct ieee80211_vif *vif, 5797 struct ieee80211_channel_switch *chsw) 5798 { 5799 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5800 5801 guard(mvm)(mvm); 5802 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5803 } 5804 5805 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5806 struct ieee80211_vif *vif, 5807 struct ieee80211_channel_switch *chsw) 5808 { 5809 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5810 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5811 struct iwl_chan_switch_te_cmd cmd = { 5812 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5813 mvmvif->color)), 5814 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5815 .tsf = cpu_to_le32(chsw->timestamp), 5816 .cs_count = chsw->count, 5817 .cs_mode = chsw->block_tx, 5818 }; 5819 5820 /* 5821 * In the new flow FW is in charge of timing the switch so there is no 5822 * need for all of this 5823 */ 5824 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5825 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5826 return; 5827 5828 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5829 return; 5830 5831 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5832 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5833 5834 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5835 if (mvmvif->csa_misbehave) { 5836 struct ieee80211_bss_conf *link_conf; 5837 5838 /* Second time, give up on this AP*/ 5839 5840 link_conf = wiphy_dereference(hw->wiphy, 5841 vif->link_conf[chsw->link_id]); 5842 if (WARN_ON(!link_conf)) 5843 return; 5844 5845 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5846 ieee80211_chswitch_done(vif, false, 0); 5847 mvmvif->csa_misbehave = false; 5848 return; 5849 } 5850 mvmvif->csa_misbehave = true; 5851 } 5852 mvmvif->csa_count = chsw->count; 5853 5854 guard(mvm)(mvm); 5855 if (mvmvif->csa_failed) 5856 return; 5857 5858 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5859 WIDE_ID(MAC_CONF_GROUP, 5860 CHANNEL_SWITCH_TIME_EVENT_CMD), 5861 0, sizeof(cmd), &cmd)); 5862 } 5863 5864 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5865 { 5866 int i; 5867 5868 if (!iwl_mvm_has_new_tx_api(mvm)) { 5869 /* we can't ask the firmware anything if it is dead */ 5870 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5871 &mvm->status)) 5872 return; 5873 if (drop) { 5874 guard(mvm)(mvm); 5875 iwl_mvm_flush_tx_path(mvm, 5876 iwl_mvm_flushable_queues(mvm) & queues); 5877 } else { 5878 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5879 } 5880 return; 5881 } 5882 5883 guard(mvm)(mvm); 5884 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5885 struct ieee80211_sta *sta; 5886 5887 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5888 lockdep_is_held(&mvm->mutex)); 5889 if (IS_ERR_OR_NULL(sta)) 5890 continue; 5891 5892 if (drop) 5893 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5894 else 5895 iwl_mvm_wait_sta_queues_empty(mvm, 5896 iwl_mvm_sta_from_mac80211(sta)); 5897 } 5898 } 5899 5900 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5901 u32 queues, bool drop) 5902 { 5903 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5904 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5905 struct iwl_mvm_sta *mvmsta; 5906 struct ieee80211_sta *sta; 5907 bool ap_sta_done = false; 5908 int i; 5909 u32 msk = 0; 5910 5911 if (!vif) { 5912 iwl_mvm_flush_no_vif(mvm, queues, drop); 5913 return; 5914 } 5915 5916 if (!drop && hweight16(vif->active_links) <= 1) { 5917 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5918 struct ieee80211_bss_conf *link_conf; 5919 5920 link_conf = wiphy_dereference(hw->wiphy, 5921 vif->link_conf[link_id]); 5922 if (WARN_ON(!link_conf)) 5923 return; 5924 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5925 drop = true; 5926 } 5927 5928 /* Make sure we're done with the deferred traffic before flushing */ 5929 flush_work(&mvm->add_stream_wk); 5930 5931 mutex_lock(&mvm->mutex); 5932 5933 /* flush the AP-station and all TDLS peers */ 5934 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5935 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5936 lockdep_is_held(&mvm->mutex)); 5937 if (IS_ERR_OR_NULL(sta)) 5938 continue; 5939 5940 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5941 if (mvmsta->vif != vif) 5942 continue; 5943 5944 if (sta == mvmvif->ap_sta) { 5945 if (ap_sta_done) 5946 continue; 5947 ap_sta_done = true; 5948 } 5949 5950 if (drop) { 5951 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5952 mvmsta->tfd_queue_msk)) 5953 IWL_ERR(mvm, "flush request fail\n"); 5954 } else { 5955 if (iwl_mvm_has_new_tx_api(mvm)) 5956 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5957 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5958 msk |= mvmsta->tfd_queue_msk; 5959 } 5960 } 5961 5962 mutex_unlock(&mvm->mutex); 5963 5964 /* this can take a while, and we may need/want other operations 5965 * to succeed while doing this, so do it without the mutex held 5966 * If the firmware is dead, this can't work... 5967 */ 5968 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5969 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5970 &mvm->status)) 5971 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5972 } 5973 5974 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5975 struct ieee80211_sta *sta) 5976 { 5977 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5978 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5979 struct iwl_mvm_link_sta *mvm_link_sta; 5980 struct ieee80211_link_sta *link_sta; 5981 int link_id; 5982 5983 guard(mvm)(mvm); 5984 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5985 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5986 lockdep_is_held(&mvm->mutex)); 5987 if (!mvm_link_sta) 5988 continue; 5989 5990 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5991 mvmsta->tfd_queue_msk)) 5992 IWL_ERR(mvm, "flush request fail\n"); 5993 } 5994 } 5995 5996 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 5997 struct survey_info *survey) 5998 { 5999 int chan_idx; 6000 enum nl80211_band band; 6001 int ret; 6002 6003 mutex_lock(&mvm->mutex); 6004 6005 if (!mvm->acs_survey) { 6006 ret = -ENOENT; 6007 goto out; 6008 } 6009 6010 /* Find and return the next entry that has a non-zero active time */ 6011 for (band = 0; band < NUM_NL80211_BANDS; band++) { 6012 struct ieee80211_supported_band *sband = 6013 mvm->hw->wiphy->bands[band]; 6014 6015 if (!sband) 6016 continue; 6017 6018 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 6019 struct iwl_mvm_acs_survey_channel *info = 6020 &mvm->acs_survey->bands[band][chan_idx]; 6021 6022 if (!info->time) 6023 continue; 6024 6025 /* Found (the next) channel to report */ 6026 survey->channel = &sband->channels[chan_idx]; 6027 survey->filled = SURVEY_INFO_TIME | 6028 SURVEY_INFO_TIME_BUSY | 6029 SURVEY_INFO_TIME_RX | 6030 SURVEY_INFO_TIME_TX; 6031 survey->time = info->time; 6032 survey->time_busy = info->time_busy; 6033 survey->time_rx = info->time_rx; 6034 survey->time_tx = info->time_tx; 6035 survey->noise = info->noise; 6036 if (survey->noise < 0) 6037 survey->filled |= SURVEY_INFO_NOISE_DBM; 6038 6039 /* Clear time so that channel is only reported once */ 6040 info->time = 0; 6041 6042 ret = 0; 6043 goto out; 6044 } 6045 } 6046 6047 ret = -ENOENT; 6048 6049 out: 6050 mutex_unlock(&mvm->mutex); 6051 6052 return ret; 6053 } 6054 6055 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 6056 struct survey_info *survey) 6057 { 6058 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6059 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 6060 WIDE_ID(SYSTEM_GROUP, 6061 SYSTEM_STATISTICS_CMD), 6062 IWL_FW_CMD_VER_UNKNOWN); 6063 6064 memset(survey, 0, sizeof(*survey)); 6065 6066 if (!fw_has_capa(&mvm->fw->ucode_capa, 6067 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 6068 return -ENOENT; 6069 6070 /* 6071 * Return the beacon stats at index zero and pass on following indices 6072 * to the function returning the full survey, most likely for ACS 6073 * (Automatic Channel Selection). 6074 */ 6075 if (idx > 0) 6076 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 6077 6078 guard(mvm)(mvm); 6079 6080 if (iwl_mvm_firmware_running(mvm)) { 6081 int ret = iwl_mvm_request_statistics(mvm, false); 6082 6083 if (ret) 6084 return ret; 6085 } 6086 6087 survey->filled = SURVEY_INFO_TIME_RX | 6088 SURVEY_INFO_TIME_TX; 6089 6090 survey->time_rx = mvm->accu_radio_stats.rx_time + 6091 mvm->radio_stats.rx_time; 6092 do_div(survey->time_rx, USEC_PER_MSEC); 6093 6094 survey->time_tx = mvm->accu_radio_stats.tx_time + 6095 mvm->radio_stats.tx_time; 6096 do_div(survey->time_tx, USEC_PER_MSEC); 6097 6098 /* the new fw api doesn't support the following fields */ 6099 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 6100 return 0; 6101 6102 survey->filled |= SURVEY_INFO_TIME | 6103 SURVEY_INFO_TIME_SCAN; 6104 survey->time = mvm->accu_radio_stats.on_time_rf + 6105 mvm->radio_stats.on_time_rf; 6106 do_div(survey->time, USEC_PER_MSEC); 6107 6108 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 6109 mvm->radio_stats.on_time_scan; 6110 do_div(survey->time_scan, USEC_PER_MSEC); 6111 6112 return 0; 6113 } 6114 6115 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 6116 { 6117 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 6118 u32 gi_ltf; 6119 6120 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 6121 case RATE_MCS_CHAN_WIDTH_20: 6122 rinfo->bw = RATE_INFO_BW_20; 6123 break; 6124 case RATE_MCS_CHAN_WIDTH_40: 6125 rinfo->bw = RATE_INFO_BW_40; 6126 break; 6127 case RATE_MCS_CHAN_WIDTH_80: 6128 rinfo->bw = RATE_INFO_BW_80; 6129 break; 6130 case RATE_MCS_CHAN_WIDTH_160: 6131 rinfo->bw = RATE_INFO_BW_160; 6132 break; 6133 case RATE_MCS_CHAN_WIDTH_320: 6134 rinfo->bw = RATE_INFO_BW_320; 6135 break; 6136 } 6137 6138 if (format == RATE_MCS_CCK_MSK || 6139 format == RATE_MCS_LEGACY_OFDM_MSK) { 6140 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 6141 6142 /* add the offset needed to get to the legacy ofdm indices */ 6143 if (format == RATE_MCS_LEGACY_OFDM_MSK) 6144 rate += IWL_FIRST_OFDM_RATE; 6145 6146 switch (rate) { 6147 case IWL_RATE_1M_INDEX: 6148 rinfo->legacy = 10; 6149 break; 6150 case IWL_RATE_2M_INDEX: 6151 rinfo->legacy = 20; 6152 break; 6153 case IWL_RATE_5M_INDEX: 6154 rinfo->legacy = 55; 6155 break; 6156 case IWL_RATE_11M_INDEX: 6157 rinfo->legacy = 110; 6158 break; 6159 case IWL_RATE_6M_INDEX: 6160 rinfo->legacy = 60; 6161 break; 6162 case IWL_RATE_9M_INDEX: 6163 rinfo->legacy = 90; 6164 break; 6165 case IWL_RATE_12M_INDEX: 6166 rinfo->legacy = 120; 6167 break; 6168 case IWL_RATE_18M_INDEX: 6169 rinfo->legacy = 180; 6170 break; 6171 case IWL_RATE_24M_INDEX: 6172 rinfo->legacy = 240; 6173 break; 6174 case IWL_RATE_36M_INDEX: 6175 rinfo->legacy = 360; 6176 break; 6177 case IWL_RATE_48M_INDEX: 6178 rinfo->legacy = 480; 6179 break; 6180 case IWL_RATE_54M_INDEX: 6181 rinfo->legacy = 540; 6182 } 6183 return; 6184 } 6185 6186 rinfo->nss = u32_get_bits(rate_n_flags, 6187 RATE_MCS_NSS_MSK) + 1; 6188 rinfo->mcs = format == RATE_MCS_HT_MSK ? 6189 RATE_HT_MCS_INDEX(rate_n_flags) : 6190 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6191 6192 if (rate_n_flags & RATE_MCS_SGI_MSK) 6193 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6194 6195 switch (format) { 6196 case RATE_MCS_EHT_MSK: 6197 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6198 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6199 break; 6200 case RATE_MCS_HE_MSK: 6201 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6202 6203 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6204 6205 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6206 rinfo->bw = RATE_INFO_BW_HE_RU; 6207 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6208 } 6209 6210 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6211 case RATE_MCS_HE_TYPE_SU: 6212 case RATE_MCS_HE_TYPE_EXT_SU: 6213 if (gi_ltf == 0 || gi_ltf == 1) 6214 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6215 else if (gi_ltf == 2) 6216 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6217 else if (gi_ltf == 3) 6218 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6219 else 6220 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6221 break; 6222 case RATE_MCS_HE_TYPE_MU: 6223 if (gi_ltf == 0 || gi_ltf == 1) 6224 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6225 else if (gi_ltf == 2) 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 case RATE_MCS_HE_TYPE_TRIG: 6231 if (gi_ltf == 0 || gi_ltf == 1) 6232 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6233 else 6234 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6235 break; 6236 } 6237 6238 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6239 rinfo->he_dcm = 1; 6240 break; 6241 case RATE_MCS_HT_MSK: 6242 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6243 break; 6244 case RATE_MCS_VHT_MSK: 6245 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6246 break; 6247 } 6248 } 6249 6250 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6251 struct ieee80211_vif *vif, 6252 struct ieee80211_sta *sta, 6253 struct station_info *sinfo) 6254 { 6255 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6256 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6257 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6258 int i; 6259 6260 if (mvmsta->deflink.avg_energy) { 6261 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6262 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6263 } 6264 6265 if (iwl_mvm_has_tlc_offload(mvm)) { 6266 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6267 6268 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6269 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6270 } 6271 6272 /* if beacon filtering isn't on mac80211 does it anyway */ 6273 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6274 return; 6275 6276 if (!vif->cfg.assoc) 6277 return; 6278 6279 guard(mvm)(mvm); 6280 6281 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id) 6282 return; 6283 6284 if (iwl_mvm_request_statistics(mvm, false)) 6285 return; 6286 6287 sinfo->rx_beacon = 0; 6288 for_each_mvm_vif_valid_link(mvmvif, i) 6289 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6290 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6291 6292 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6293 if (mvmvif->deflink.beacon_stats.avg_signal) { 6294 /* firmware only reports a value after RXing a few beacons */ 6295 sinfo->rx_beacon_signal_avg = 6296 mvmvif->deflink.beacon_stats.avg_signal; 6297 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6298 } 6299 } 6300 6301 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6302 struct ieee80211_vif *vif, 6303 const struct ieee80211_mlme_event *mlme) 6304 { 6305 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6306 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6307 iwl_dbg_tlv_time_point(&mvm->fwrt, 6308 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6309 NULL); 6310 return; 6311 } 6312 6313 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6314 iwl_dbg_tlv_time_point(&mvm->fwrt, 6315 IWL_FW_INI_TIME_POINT_DEASSOC, 6316 NULL); 6317 return; 6318 } 6319 } 6320 6321 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6322 struct ieee80211_vif *vif, 6323 const struct ieee80211_event *event) 6324 { 6325 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6326 do { \ 6327 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6328 break; \ 6329 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6330 } while (0) 6331 6332 struct iwl_fw_dbg_trigger_tlv *trig; 6333 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6334 6335 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6336 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6337 return; 6338 } 6339 6340 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6341 FW_DBG_TRIGGER_MLME); 6342 if (!trig) 6343 return; 6344 6345 trig_mlme = (void *)trig->data; 6346 6347 if (event->u.mlme.data == ASSOC_EVENT) { 6348 if (event->u.mlme.status == MLME_DENIED) 6349 CHECK_MLME_TRIGGER(stop_assoc_denied, 6350 "DENIED ASSOC: reason %d", 6351 event->u.mlme.reason); 6352 else if (event->u.mlme.status == MLME_TIMEOUT) 6353 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6354 "ASSOC TIMEOUT"); 6355 } else if (event->u.mlme.data == AUTH_EVENT) { 6356 if (event->u.mlme.status == MLME_DENIED) 6357 CHECK_MLME_TRIGGER(stop_auth_denied, 6358 "DENIED AUTH: reason %d", 6359 event->u.mlme.reason); 6360 else if (event->u.mlme.status == MLME_TIMEOUT) 6361 CHECK_MLME_TRIGGER(stop_auth_timeout, 6362 "AUTH TIMEOUT"); 6363 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6364 CHECK_MLME_TRIGGER(stop_rx_deauth, 6365 "DEAUTH RX %d", event->u.mlme.reason); 6366 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6367 CHECK_MLME_TRIGGER(stop_tx_deauth, 6368 "DEAUTH TX %d", event->u.mlme.reason); 6369 } 6370 #undef CHECK_MLME_TRIGGER 6371 } 6372 6373 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6374 struct ieee80211_vif *vif, 6375 const struct ieee80211_event *event) 6376 { 6377 struct iwl_fw_dbg_trigger_tlv *trig; 6378 struct iwl_fw_dbg_trigger_ba *ba_trig; 6379 6380 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6381 FW_DBG_TRIGGER_BA); 6382 if (!trig) 6383 return; 6384 6385 ba_trig = (void *)trig->data; 6386 6387 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6388 return; 6389 6390 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6391 "BAR received from %pM, tid %d, ssn %d", 6392 event->u.ba.sta->addr, event->u.ba.tid, 6393 event->u.ba.ssn); 6394 } 6395 6396 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6397 struct ieee80211_vif *vif, 6398 const struct ieee80211_event *event) 6399 { 6400 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6401 6402 switch (event->type) { 6403 case MLME_EVENT: 6404 iwl_mvm_event_mlme_callback(mvm, vif, event); 6405 break; 6406 case BAR_RX_EVENT: 6407 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6408 break; 6409 case BA_FRAME_TIMEOUT: 6410 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6411 event->u.ba.tid); 6412 break; 6413 default: 6414 break; 6415 } 6416 } 6417 6418 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6419 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6420 enum iwl_mvm_rxq_notif_type type, 6421 bool sync, 6422 const void *data, u32 size) 6423 { 6424 struct { 6425 struct iwl_rxq_sync_cmd cmd; 6426 struct iwl_mvm_internal_rxq_notif notif; 6427 } __packed cmd = { 6428 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6429 .cmd.count = 6430 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6431 size), 6432 .notif.type = type, 6433 .notif.sync = sync, 6434 }; 6435 struct iwl_host_cmd hcmd = { 6436 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6437 .data[0] = &cmd, 6438 .len[0] = sizeof(cmd), 6439 .data[1] = data, 6440 .len[1] = size, 6441 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6442 }; 6443 int ret; 6444 6445 /* size must be a multiple of DWORD */ 6446 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6447 return; 6448 6449 if (!iwl_mvm_has_new_rx_api(mvm)) 6450 return; 6451 6452 if (sync) { 6453 cmd.notif.cookie = mvm->queue_sync_cookie; 6454 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6455 } 6456 6457 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6458 if (ret) { 6459 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6460 goto out; 6461 } 6462 6463 if (sync) { 6464 lockdep_assert_held(&mvm->mutex); 6465 ret = wait_event_timeout(mvm->rx_sync_waitq, 6466 READ_ONCE(mvm->queue_sync_state) == 0, 6467 SYNC_RX_QUEUE_TIMEOUT); 6468 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6469 mvm->queue_sync_state, 6470 mvm->queue_sync_cookie); 6471 } 6472 6473 out: 6474 if (sync) { 6475 mvm->queue_sync_state = 0; 6476 mvm->queue_sync_cookie++; 6477 } 6478 } 6479 6480 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6481 { 6482 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6483 6484 guard(mvm)(mvm); 6485 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6486 } 6487 6488 int 6489 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6490 struct ieee80211_vif *vif, 6491 struct cfg80211_ftm_responder_stats *stats) 6492 { 6493 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6494 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6495 6496 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6497 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6498 return -EINVAL; 6499 6500 mutex_lock(&mvm->mutex); 6501 *stats = mvm->ftm_resp_stats; 6502 mutex_unlock(&mvm->mutex); 6503 6504 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6505 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6506 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6507 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6508 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6509 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6510 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6511 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6512 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6513 6514 return 0; 6515 } 6516 6517 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6518 struct cfg80211_pmsr_request *request) 6519 { 6520 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6521 6522 guard(mvm)(mvm); 6523 return iwl_mvm_ftm_start(mvm, vif, request); 6524 } 6525 6526 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6527 struct cfg80211_pmsr_request *request) 6528 { 6529 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6530 6531 guard(mvm)(mvm); 6532 iwl_mvm_ftm_abort(mvm, request); 6533 } 6534 6535 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6536 { 6537 u8 protocol = ip_hdr(skb)->protocol; 6538 6539 if (!IS_ENABLED(CONFIG_INET)) 6540 return false; 6541 6542 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6543 } 6544 6545 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6546 struct sk_buff *head, 6547 struct sk_buff *skb) 6548 { 6549 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6550 6551 /* For now don't aggregate IPv6 in AMSDU */ 6552 if (skb->protocol != htons(ETH_P_IP)) 6553 return false; 6554 6555 if (!iwl_mvm_is_csum_supported(mvm)) 6556 return true; 6557 6558 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6559 } 6560 6561 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6562 struct ieee80211_vif *vif, 6563 struct cfg80211_set_hw_timestamp *hwts) 6564 { 6565 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6566 u32 protocols = 0; 6567 6568 /* HW timestamping is only supported for a specific station */ 6569 if (!hwts->macaddr) 6570 return -EOPNOTSUPP; 6571 6572 if (hwts->enable) 6573 protocols = 6574 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6575 6576 guard(mvm)(mvm); 6577 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6578 } 6579 6580 const struct ieee80211_ops iwl_mvm_hw_ops = { 6581 .tx = iwl_mvm_mac_tx, 6582 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6583 .ampdu_action = iwl_mvm_mac_ampdu_action, 6584 .get_antenna = iwl_mvm_op_get_antenna, 6585 .set_antenna = iwl_mvm_op_set_antenna, 6586 .start = iwl_mvm_mac_start, 6587 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6588 .stop = iwl_mvm_mac_stop, 6589 .add_interface = iwl_mvm_mac_add_interface, 6590 .remove_interface = iwl_mvm_mac_remove_interface, 6591 .config = iwl_mvm_mac_config, 6592 .prepare_multicast = iwl_mvm_prepare_multicast, 6593 .configure_filter = iwl_mvm_configure_filter, 6594 .config_iface_filter = iwl_mvm_config_iface_filter, 6595 .bss_info_changed = iwl_mvm_bss_info_changed, 6596 .hw_scan = iwl_mvm_mac_hw_scan, 6597 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6598 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6599 .sta_state = iwl_mvm_mac_sta_state, 6600 .sta_notify = iwl_mvm_mac_sta_notify, 6601 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6602 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6603 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6604 .link_sta_rc_update = iwl_mvm_sta_rc_update, 6605 .conf_tx = iwl_mvm_mac_conf_tx, 6606 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6607 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6608 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6609 .flush = iwl_mvm_mac_flush, 6610 .flush_sta = iwl_mvm_mac_flush_sta, 6611 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6612 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6613 .set_key = iwl_mvm_mac_set_key, 6614 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6615 .remain_on_channel = iwl_mvm_roc, 6616 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6617 .add_chanctx = iwl_mvm_add_chanctx, 6618 .remove_chanctx = iwl_mvm_remove_chanctx, 6619 .change_chanctx = iwl_mvm_change_chanctx, 6620 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6621 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6622 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6623 6624 .start_ap = iwl_mvm_start_ap, 6625 .stop_ap = iwl_mvm_stop_ap, 6626 .join_ibss = iwl_mvm_start_ibss, 6627 .leave_ibss = iwl_mvm_stop_ibss, 6628 6629 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6630 6631 .set_tim = iwl_mvm_set_tim, 6632 6633 .channel_switch = iwl_mvm_channel_switch, 6634 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6635 .post_channel_switch = iwl_mvm_post_channel_switch, 6636 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6637 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6638 6639 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6640 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6641 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6642 6643 .event_callback = iwl_mvm_mac_event_callback, 6644 6645 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6646 6647 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6648 6649 #ifdef CONFIG_PM_SLEEP 6650 /* look at d3.c */ 6651 .suspend = iwl_mvm_suspend, 6652 .resume = iwl_mvm_resume, 6653 .set_wakeup = iwl_mvm_set_wakeup, 6654 .set_rekey_data = iwl_mvm_set_rekey_data, 6655 #if IS_ENABLED(CONFIG_IPV6) 6656 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6657 #endif 6658 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6659 #endif 6660 .get_survey = iwl_mvm_mac_get_survey, 6661 .sta_statistics = iwl_mvm_mac_sta_statistics, 6662 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6663 .start_pmsr = iwl_mvm_start_pmsr, 6664 .abort_pmsr = iwl_mvm_abort_pmsr, 6665 6666 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6667 #ifdef CONFIG_IWLWIFI_DEBUGFS 6668 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6669 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6670 #endif 6671 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6672 }; 6673