1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2025 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/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_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 IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT) 279 280 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = { 281 { 282 .iftype = NL80211_IFTYPE_STATION, 283 .extended_capabilities = he_if_types_ext_capa_sta, 284 .extended_capabilities_mask = he_if_types_ext_capa_sta, 285 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 286 /* relevant only if EHT is supported */ 287 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 288 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 289 }, 290 { 291 .iftype = NL80211_IFTYPE_STATION, 292 .extended_capabilities = tm_if_types_ext_capa_sta, 293 .extended_capabilities_mask = tm_if_types_ext_capa_sta, 294 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta), 295 /* relevant only if EHT is supported */ 296 .eml_capabilities = IWL_MVM_EMLSR_CAPA, 297 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS, 298 }, 299 }; 300 301 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 302 { 303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 304 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 305 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 306 return 0; 307 } 308 309 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) 310 { 311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 312 313 /* This has been tested on those devices only */ 314 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 && 315 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000) 316 return -EOPNOTSUPP; 317 318 if (!mvm->nvm_data) 319 return -EBUSY; 320 321 /* mac80211 ensures the device is not started, 322 * so the firmware cannot be running 323 */ 324 325 mvm->set_tx_ant = tx_ant; 326 mvm->set_rx_ant = rx_ant; 327 328 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw); 329 330 return 0; 331 } 332 333 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 334 { 335 struct ieee80211_hw *hw = mvm->hw; 336 int num_mac, ret, i; 337 static const u32 mvm_ciphers[] = { 338 WLAN_CIPHER_SUITE_WEP40, 339 WLAN_CIPHER_SUITE_WEP104, 340 WLAN_CIPHER_SUITE_TKIP, 341 WLAN_CIPHER_SUITE_CCMP, 342 }; 343 #ifdef CONFIG_PM_SLEEP 344 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 345 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 346 #endif 347 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 348 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 349 350 /* Tell mac80211 our characteristics */ 351 ieee80211_hw_set(hw, SIGNAL_DBM); 352 ieee80211_hw_set(hw, SPECTRUM_MGMT); 353 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 354 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 355 ieee80211_hw_set(hw, SUPPORTS_PS); 356 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 357 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 358 ieee80211_hw_set(hw, CONNECTION_MONITOR); 359 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 360 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 361 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 362 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 363 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 364 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 365 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 366 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 367 368 /* Set this early since we need to have it for the check below */ 369 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable && 370 !iwlwifi_mod_params.disable_11ax && 371 !iwlwifi_mod_params.disable_11be) { 372 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO; 373 /* we handle this already earlier, but need it for MLO */ 374 ieee80211_hw_set(hw, HANDLES_QUIET_CSA); 375 } 376 377 /* With MLD FW API, it tracks timing by itself, 378 * no need for any timing from the host 379 */ 380 if (!mvm->mld_api_is_used) 381 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 382 383 /* 384 * On older devices, enabling TX A-MSDU occasionally leads to 385 * something getting messed up, the command read from the FIFO 386 * gets out of sync and isn't a TX command, so that we have an 387 * assert EDC. 388 * 389 * It's not clear where the bug is, but since we didn't used to 390 * support A-MSDU until moving the mac80211 iTXQs, just leave it 391 * for older devices. We also don't see this issue on any newer 392 * devices. 393 */ 394 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 395 ieee80211_hw_set(hw, TX_AMSDU); 396 ieee80211_hw_set(hw, TX_FRAG_LIST); 397 398 if (iwl_mvm_has_tlc_offload(mvm)) { 399 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 400 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 401 } 402 403 /* We want to use the mac80211's reorder buffer for 9000 */ 404 if (iwl_mvm_has_new_rx_api(mvm) && 405 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000) 406 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 407 408 if (fw_has_capa(&mvm->fw->ucode_capa, 409 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 410 ieee80211_hw_set(hw, AP_LINK_PS); 411 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 412 /* 413 * we absolutely need this for the new TX API since that comes 414 * with many more queues than the current code can deal with 415 * for station powersave 416 */ 417 return -EINVAL; 418 } 419 420 if (mvm->trans->num_rx_queues > 1) 421 ieee80211_hw_set(hw, USES_RSS); 422 423 if (mvm->trans->max_skb_frags) 424 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 425 426 hw->queues = IEEE80211_NUM_ACS; 427 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 428 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 429 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 430 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 431 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 432 433 hw->radiotap_timestamp.units_pos = 434 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 435 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 436 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 437 hw->radiotap_timestamp.accuracy = 22; 438 439 if (!iwl_mvm_has_tlc_offload(mvm)) 440 hw->rate_control_algorithm = RS_NAME; 441 442 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 443 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 444 hw->max_tx_fragments = mvm->trans->max_skb_frags; 445 446 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 447 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 448 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 449 hw->wiphy->cipher_suites = mvm->ciphers; 450 451 if (iwl_mvm_has_new_rx_api(mvm)) { 452 mvm->ciphers[hw->wiphy->n_cipher_suites] = 453 WLAN_CIPHER_SUITE_GCMP; 454 hw->wiphy->n_cipher_suites++; 455 mvm->ciphers[hw->wiphy->n_cipher_suites] = 456 WLAN_CIPHER_SUITE_GCMP_256; 457 hw->wiphy->n_cipher_suites++; 458 } 459 460 if (iwlwifi_mod_params.swcrypto) 461 IWL_ERR(mvm, 462 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 463 if (!iwlwifi_mod_params.bt_coex_active) 464 IWL_ERR(mvm, 465 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 466 467 ieee80211_hw_set(hw, MFP_CAPABLE); 468 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 469 hw->wiphy->n_cipher_suites++; 470 if (iwl_mvm_has_new_rx_api(mvm)) { 471 mvm->ciphers[hw->wiphy->n_cipher_suites] = 472 WLAN_CIPHER_SUITE_BIP_GMAC_128; 473 hw->wiphy->n_cipher_suites++; 474 mvm->ciphers[hw->wiphy->n_cipher_suites] = 475 WLAN_CIPHER_SUITE_BIP_GMAC_256; 476 hw->wiphy->n_cipher_suites++; 477 } 478 479 wiphy_ext_feature_set(hw->wiphy, 480 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 481 wiphy_ext_feature_set(hw->wiphy, 482 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); 483 484 if (fw_has_capa(&mvm->fw->ucode_capa, 485 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 486 wiphy_ext_feature_set(hw->wiphy, 487 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 488 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 489 } 490 491 if (sec_key_ver && 492 fw_has_capa(&mvm->fw->ucode_capa, 493 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT)) 494 wiphy_ext_feature_set(hw->wiphy, 495 NL80211_EXT_FEATURE_BEACON_PROTECTION); 496 else if (fw_has_capa(&mvm->fw->ucode_capa, 497 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 498 wiphy_ext_feature_set(hw->wiphy, 499 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 500 501 if (fw_has_capa(&mvm->fw->ucode_capa, 502 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM)) 503 hw->wiphy->hw_timestamp_max_peers = 1; 504 505 if (fw_has_capa(&mvm->fw->ucode_capa, 506 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT)) 507 wiphy_ext_feature_set(hw->wiphy, 508 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); 509 510 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 511 hw->wiphy->features |= 512 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 513 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 514 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 515 516 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 517 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 518 hw->chanctx_data_size = sizeof(u16); 519 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 520 521 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 522 BIT(NL80211_IFTYPE_P2P_CLIENT) | 523 BIT(NL80211_IFTYPE_AP) | 524 BIT(NL80211_IFTYPE_P2P_GO) | 525 BIT(NL80211_IFTYPE_P2P_DEVICE) | 526 BIT(NL80211_IFTYPE_ADHOC); 527 528 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 529 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 530 531 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 532 * the hw, preventing us to control which key(id) to use per MPDU. 533 * Till that's fixed we can't use Extended Key ID for the newer cards. 534 */ 535 if (!iwl_mvm_has_new_tx_api(mvm)) 536 wiphy_ext_feature_set(hw->wiphy, 537 NL80211_EXT_FEATURE_EXT_KEY_ID); 538 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 539 540 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 541 if (iwl_mvm_is_lar_supported(mvm)) 542 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 543 else 544 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 545 REGULATORY_DISABLE_BEACON_HINTS; 546 547 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 548 wiphy_ext_feature_set(hw->wiphy, 549 NL80211_EXT_FEATURE_DFS_CONCURRENT); 550 551 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 552 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 553 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 554 555 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 556 hw->wiphy->n_iface_combinations = 557 ARRAY_SIZE(iwl_mvm_iface_combinations); 558 559 hw->wiphy->max_remain_on_channel_duration = 10000; 560 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL; 561 562 /* Extract MAC address */ 563 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 564 hw->wiphy->addresses = mvm->addresses; 565 hw->wiphy->n_addresses = 1; 566 567 /* Extract additional MAC addresses if available */ 568 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 569 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 570 571 for (i = 1; i < num_mac; i++) { 572 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 573 ETH_ALEN); 574 mvm->addresses[i].addr[5]++; 575 hw->wiphy->n_addresses++; 576 } 577 578 iwl_mvm_reset_phy_ctxts(mvm); 579 580 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 581 582 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 583 584 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 585 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 586 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 587 588 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 589 mvm->max_scans = IWL_MAX_UMAC_SCANS; 590 else 591 mvm->max_scans = IWL_MAX_LMAC_SCANS; 592 593 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 594 hw->wiphy->bands[NL80211_BAND_2GHZ] = 595 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 596 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 597 hw->wiphy->bands[NL80211_BAND_5GHZ] = 598 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 599 600 if (fw_has_capa(&mvm->fw->ucode_capa, 601 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 602 fw_has_api(&mvm->fw->ucode_capa, 603 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 604 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 605 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 606 } 607 if (fw_has_capa(&mvm->fw->ucode_capa, 608 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 609 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 610 hw->wiphy->bands[NL80211_BAND_6GHZ] = 611 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 612 613 hw->wiphy->hw_version = mvm->trans->hw_id; 614 615 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 616 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 617 else 618 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 619 620 hw->wiphy->max_sched_scan_reqs = 1; 621 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 622 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 623 /* we create the 802.11 header and zero length SSID IE. */ 624 hw->wiphy->max_sched_scan_ie_len = 625 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 626 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 627 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 628 629 /* 630 * the firmware uses u8 for num of iterations, but 0xff is saved for 631 * infinite loop, so the maximum number of iterations is actually 254. 632 */ 633 hw->wiphy->max_sched_scan_plan_iterations = 254; 634 635 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 636 NL80211_FEATURE_LOW_PRIORITY_SCAN | 637 NL80211_FEATURE_P2P_GO_OPPPS | 638 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 639 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 640 641 /* when firmware supports RLC/SMPS offload, do not set these 642 * driver features, since it's no longer supported by driver. 643 */ 644 if (!iwl_mvm_has_rlc_offload(mvm)) 645 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS | 646 NL80211_FEATURE_DYNAMIC_SMPS; 647 648 if (fw_has_capa(&mvm->fw->ucode_capa, 649 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 650 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 651 if (fw_has_capa(&mvm->fw->ucode_capa, 652 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 653 hw->wiphy->features |= NL80211_FEATURE_QUIET; 654 655 if (fw_has_capa(&mvm->fw->ucode_capa, 656 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 657 hw->wiphy->features |= 658 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 659 660 if (fw_has_capa(&mvm->fw->ucode_capa, 661 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 662 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 663 664 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 665 IWL_FW_CMD_VER_UNKNOWN) >= 3) 666 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 667 668 if (fw_has_api(&mvm->fw->ucode_capa, 669 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 670 wiphy_ext_feature_set(hw->wiphy, 671 NL80211_EXT_FEATURE_SCAN_START_TIME); 672 wiphy_ext_feature_set(hw->wiphy, 673 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 674 } 675 676 if (iwl_mvm_is_oce_supported(mvm)) { 677 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 678 679 wiphy_ext_feature_set(hw->wiphy, 680 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 681 wiphy_ext_feature_set(hw->wiphy, 682 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 683 wiphy_ext_feature_set(hw->wiphy, 684 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 685 686 /* Old firmware also supports probe deferral and suppression */ 687 if (scan_ver < 15) 688 wiphy_ext_feature_set(hw->wiphy, 689 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 690 } 691 692 hw->wiphy->iftype_ext_capab = NULL; 693 hw->wiphy->num_iftype_ext_capab = 0; 694 695 if (mvm->nvm_data->sku_cap_11ax_enable && 696 !iwlwifi_mod_params.disable_11ax) { 697 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa; 698 hw->wiphy->num_iftype_ext_capab = 699 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 700 701 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 702 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 703 } 704 705 if (iwl_fw_lookup_cmd_ver(mvm->fw, 706 WIDE_ID(DATA_PATH_GROUP, 707 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 708 IWL_FW_CMD_VER_UNKNOWN) >= 1) { 709 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n"); 710 711 if (!hw->wiphy->iftype_ext_capab) { 712 hw->wiphy->num_iftype_ext_capab = 1; 713 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 714 ARRAY_SIZE(add_iftypes_ext_capa) - 1; 715 } else { 716 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1; 717 } 718 } 719 720 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP, 721 TOF_RANGE_REQ_CMD), 722 IWL_FW_CMD_VER_UNKNOWN) >= 11) { 723 wiphy_ext_feature_set(hw->wiphy, 724 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE); 725 726 if (fw_has_capa(&mvm->fw->ucode_capa, 727 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) 728 wiphy_ext_feature_set(hw->wiphy, 729 NL80211_EXT_FEATURE_SECURE_LTF); 730 } 731 732 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 733 734 ieee80211_hw_set(hw, DISALLOW_PUNCTURING_5GHZ); 735 736 #ifdef CONFIG_PM_SLEEP 737 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 738 device_can_wakeup(mvm->trans->dev)) { 739 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 740 WIPHY_WOWLAN_DISCONNECT | 741 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 742 WIPHY_WOWLAN_RFKILL_RELEASE | 743 WIPHY_WOWLAN_NET_DETECT; 744 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 745 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 746 WIPHY_WOWLAN_4WAY_HANDSHAKE; 747 748 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 749 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 750 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 751 mvm->wowlan.max_nd_match_sets = 752 iwl_umac_scan_get_max_profiles(mvm->fw); 753 hw->wiphy->wowlan = &mvm->wowlan; 754 } 755 #endif 756 757 ret = iwl_mvm_leds_init(mvm); 758 if (ret) 759 return ret; 760 761 if (fw_has_capa(&mvm->fw->ucode_capa, 762 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 763 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 764 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 765 ieee80211_hw_set(hw, TDLS_WIDER_BW); 766 } 767 768 if (fw_has_capa(&mvm->fw->ucode_capa, 769 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 770 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 771 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 772 } 773 774 hw->netdev_features |= mvm->cfg->features; 775 if (!iwl_mvm_is_csum_supported(mvm)) 776 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 777 778 if (mvm->cfg->vht_mu_mimo_supported) 779 wiphy_ext_feature_set(hw->wiphy, 780 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 781 782 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 783 wiphy_ext_feature_set(hw->wiphy, 784 NL80211_EXT_FEATURE_PROTECTED_TWT); 785 786 iwl_mvm_vendor_cmds_register(mvm); 787 788 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 789 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 790 791 ret = ieee80211_register_hw(mvm->hw); 792 if (ret) { 793 iwl_mvm_leds_exit(mvm); 794 } 795 796 return ret; 797 } 798 799 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 800 struct ieee80211_sta *sta) 801 { 802 if (likely(sta)) { 803 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 804 return; 805 } else { 806 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 807 return; 808 } 809 810 ieee80211_free_txskb(mvm->hw, skb); 811 } 812 813 void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 814 struct ieee80211_tx_control *control, struct sk_buff *skb) 815 { 816 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 817 struct ieee80211_sta *sta = control->sta; 818 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 819 struct ieee80211_hdr *hdr = (void *)skb->data; 820 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 821 IEEE80211_TX_CTL_TX_OFFCHAN; 822 u32 link_id = u32_get_bits(info->control.flags, 823 IEEE80211_TX_CTRL_MLO_LINK); 824 struct ieee80211_sta *tmp_sta = sta; 825 826 if (iwl_mvm_is_radio_killed(mvm)) { 827 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 828 goto drop; 829 } 830 831 if (offchannel && 832 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) && 833 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 834 goto drop; 835 836 /* 837 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 838 * so we treat the others as broadcast 839 */ 840 if (ieee80211_is_mgmt(hdr->frame_control)) 841 sta = NULL; 842 843 /* this shouldn't even happen: just drop */ 844 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 845 !offchannel) 846 goto drop; 847 848 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED && 849 !ieee80211_is_probe_resp(hdr->frame_control)) { 850 /* translate MLD addresses to LINK addresses */ 851 struct ieee80211_link_sta *link_sta = 852 rcu_dereference(tmp_sta->link[link_id]); 853 struct ieee80211_bss_conf *link_conf = 854 rcu_dereference(info->control.vif->link_conf[link_id]); 855 struct ieee80211_mgmt *mgmt; 856 857 if (WARN_ON(!link_sta || !link_conf)) 858 goto drop; 859 860 /* if sta is NULL, the frame is a management frame */ 861 mgmt = (void *)hdr; 862 memcpy(mgmt->da, link_sta->addr, ETH_ALEN); 863 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN); 864 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN); 865 } 866 867 iwl_mvm_tx_skb(mvm, skb, sta); 868 return; 869 drop: 870 ieee80211_free_txskb(hw, skb); 871 } 872 873 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 874 { 875 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 876 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 877 struct sk_buff *skb = NULL; 878 879 /* 880 * No need for threads to be pending here, they can leave the first 881 * taker all the work. 882 * 883 * mvmtxq->tx_request logic: 884 * 885 * If 0, no one is currently TXing, set to 1 to indicate current thread 886 * will now start TX and other threads should quit. 887 * 888 * If 1, another thread is currently TXing, set to 2 to indicate to 889 * that thread that there was another request. Since that request may 890 * have raced with the check whether the queue is empty, the TXing 891 * thread should check the queue's status one more time before leaving. 892 * This check is done in order to not leave any TX hanging in the queue 893 * until the next TX invocation (which may not even happen). 894 * 895 * If 2, another thread is currently TXing, and it will already double 896 * check the queue, so do nothing. 897 */ 898 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 899 return; 900 901 rcu_read_lock(); 902 do { 903 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL, 904 &mvmtxq->state) && 905 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT, 906 &mvmtxq->state) && 907 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, 908 &mvmtxq->state) && 909 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 910 skb = ieee80211_tx_dequeue(hw, txq); 911 912 if (!skb) { 913 if (txq->sta) 914 IWL_DEBUG_TX(mvm, 915 "TXQ of sta %pM tid %d is now empty\n", 916 txq->sta->addr, 917 txq->tid); 918 break; 919 } 920 921 iwl_mvm_tx_skb(mvm, skb, txq->sta); 922 } 923 } while (atomic_dec_return(&mvmtxq->tx_request)); 924 rcu_read_unlock(); 925 } 926 927 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 928 struct ieee80211_txq *txq) 929 { 930 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 931 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 932 933 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) || 934 !txq->sta) { 935 iwl_mvm_mac_itxq_xmit(hw, txq); 936 return; 937 } 938 939 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker 940 * to handle any packets we leave on the txq now 941 */ 942 943 spin_lock_bh(&mvm->add_stream_lock); 944 /* The list is being deleted only after the queue is fully allocated. */ 945 if (list_empty(&mvmtxq->list) && 946 /* recheck under lock */ 947 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) { 948 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 949 schedule_work(&mvm->add_stream_wk); 950 } 951 spin_unlock_bh(&mvm->add_stream_lock); 952 } 953 954 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 955 do { \ 956 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 957 break; \ 958 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 959 } while (0) 960 961 static void 962 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 963 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 964 enum ieee80211_ampdu_mlme_action action) 965 { 966 struct iwl_fw_dbg_trigger_tlv *trig; 967 struct iwl_fw_dbg_trigger_ba *ba_trig; 968 969 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 970 FW_DBG_TRIGGER_BA); 971 if (!trig) 972 return; 973 974 ba_trig = (void *)trig->data; 975 976 switch (action) { 977 case IEEE80211_AMPDU_TX_OPERATIONAL: { 978 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 979 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 980 981 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 982 "TX AGG START: MAC %pM tid %d ssn %d\n", 983 sta->addr, tid, tid_data->ssn); 984 break; 985 } 986 case IEEE80211_AMPDU_TX_STOP_CONT: 987 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 988 "TX AGG STOP: MAC %pM tid %d\n", 989 sta->addr, tid); 990 break; 991 case IEEE80211_AMPDU_RX_START: 992 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 993 "RX AGG START: MAC %pM tid %d ssn %d\n", 994 sta->addr, tid, rx_ba_ssn); 995 break; 996 case IEEE80211_AMPDU_RX_STOP: 997 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 998 "RX AGG STOP: MAC %pM tid %d\n", 999 sta->addr, tid); 1000 break; 1001 default: 1002 break; 1003 } 1004 } 1005 1006 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 1007 struct ieee80211_vif *vif, 1008 struct ieee80211_ampdu_params *params) 1009 { 1010 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1011 int ret; 1012 struct ieee80211_sta *sta = params->sta; 1013 enum ieee80211_ampdu_mlme_action action = params->action; 1014 u16 tid = params->tid; 1015 u16 *ssn = ¶ms->ssn; 1016 u16 buf_size = params->buf_size; 1017 bool amsdu = params->amsdu; 1018 u16 timeout = params->timeout; 1019 1020 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 1021 sta->addr, tid, action); 1022 1023 if (!(mvm->nvm_data->sku_cap_11n_enable)) 1024 return -EACCES; 1025 1026 mutex_lock(&mvm->mutex); 1027 1028 switch (action) { 1029 case IEEE80211_AMPDU_RX_START: 1030 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id == 1031 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) { 1032 struct iwl_mvm_vif *mvmvif; 1033 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 1034 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 1035 1036 mdata->opened_rx_ba_sessions = true; 1037 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1038 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1039 } 1040 if (!iwl_enable_rx_ampdu()) { 1041 ret = -EINVAL; 1042 break; 1043 } 1044 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1045 timeout); 1046 break; 1047 case IEEE80211_AMPDU_RX_STOP: 1048 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1049 timeout); 1050 break; 1051 case IEEE80211_AMPDU_TX_START: 1052 if (!iwl_enable_tx_ampdu()) { 1053 ret = -EINVAL; 1054 break; 1055 } 1056 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1057 break; 1058 case IEEE80211_AMPDU_TX_STOP_CONT: 1059 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1060 break; 1061 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1062 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1063 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1064 break; 1065 case IEEE80211_AMPDU_TX_OPERATIONAL: 1066 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1067 buf_size, amsdu); 1068 break; 1069 default: 1070 WARN_ON_ONCE(1); 1071 ret = -EINVAL; 1072 break; 1073 } 1074 1075 if (!ret) { 1076 u16 rx_ba_ssn = 0; 1077 1078 if (action == IEEE80211_AMPDU_RX_START) 1079 rx_ba_ssn = *ssn; 1080 1081 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1082 rx_ba_ssn, action); 1083 } 1084 mutex_unlock(&mvm->mutex); 1085 1086 return ret; 1087 } 1088 1089 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1090 struct ieee80211_vif *vif) 1091 { 1092 struct iwl_mvm *mvm = data; 1093 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1094 struct iwl_probe_resp_data *probe_data; 1095 unsigned int link_id; 1096 1097 mvmvif->uploaded = false; 1098 1099 spin_lock_bh(&mvm->time_event_lock); 1100 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1101 spin_unlock_bh(&mvm->time_event_lock); 1102 1103 mvmvif->roc_activity = ROC_NUM_ACTIVITIES; 1104 1105 mvmvif->bf_enabled = false; 1106 mvmvif->ba_enabled = false; 1107 mvmvif->ap_sta = NULL; 1108 1109 mvmvif->esr_active = false; 1110 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE; 1111 1112 for_each_mvm_vif_valid_link(mvmvif, link_id) { 1113 mvmvif->link[link_id]->ap_sta_id = IWL_INVALID_STA; 1114 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1115 mvmvif->link[link_id]->phy_ctxt = NULL; 1116 mvmvif->link[link_id]->active = 0; 1117 mvmvif->link[link_id]->igtk = NULL; 1118 memset(&mvmvif->link[link_id]->bf_data, 0, 1119 sizeof(mvmvif->link[link_id]->bf_data)); 1120 } 1121 1122 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1123 lockdep_is_held(&mvm->mutex)); 1124 if (probe_data) 1125 kfree_rcu(probe_data, rcu_head); 1126 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1127 } 1128 1129 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta) 1130 { 1131 struct iwl_mvm *mvm = data; 1132 struct iwl_mvm_sta *mvm_sta; 1133 struct ieee80211_vif *vif; 1134 int link_id; 1135 1136 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 1137 vif = mvm_sta->vif; 1138 1139 if (!sta->valid_links) 1140 return; 1141 1142 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) { 1143 struct iwl_mvm_link_sta *mvm_link_sta; 1144 1145 mvm_link_sta = 1146 rcu_dereference_check(mvm_sta->link[link_id], 1147 lockdep_is_held(&mvm->mutex)); 1148 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) { 1149 /* 1150 * We have a link STA but the link is inactive in 1151 * mac80211. This will happen if we failed to 1152 * deactivate the link but mac80211 roll back the 1153 * deactivation of the link. 1154 * Delete the stale data to avoid issues later on. 1155 */ 1156 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta, 1157 link_id); 1158 } 1159 } 1160 } 1161 1162 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1163 { 1164 iwl_mvm_stop_device(mvm); 1165 1166 mvm->cur_aid = 0; 1167 1168 mvm->scan_status = 0; 1169 mvm->ps_disabled = false; 1170 mvm->rfkill_safe_init_done = false; 1171 1172 /* just in case one was running */ 1173 iwl_mvm_cleanup_roc_te(mvm); 1174 ieee80211_remain_on_channel_expired(mvm->hw); 1175 1176 iwl_mvm_ftm_restart(mvm); 1177 1178 /* 1179 * cleanup all interfaces, even inactive ones, as some might have 1180 * gone down during the HW restart 1181 */ 1182 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1183 1184 /* cleanup stations as links may be gone after restart */ 1185 ieee80211_iterate_stations_atomic(mvm->hw, 1186 iwl_mvm_cleanup_sta_iterator, mvm); 1187 1188 mvm->p2p_device_vif = NULL; 1189 1190 iwl_mvm_reset_phy_ctxts(mvm); 1191 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1192 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1193 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1194 1195 ieee80211_wake_queues(mvm->hw); 1196 1197 mvm->rx_ba_sessions = 0; 1198 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1199 mvm->monitor_on = false; 1200 #ifdef CONFIG_IWLWIFI_DEBUGFS 1201 mvm->beacon_inject_active = false; 1202 #endif 1203 1204 /* keep statistics ticking */ 1205 iwl_mvm_accu_radio_stats(mvm); 1206 } 1207 1208 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1209 { 1210 bool fast_resume = false; 1211 int ret; 1212 1213 lockdep_assert_held(&mvm->mutex); 1214 1215 ret = iwl_mvm_mei_get_ownership(mvm); 1216 if (ret) 1217 return ret; 1218 1219 if (mvm->mei_nvm_data) { 1220 /* We got the NIC, we can now free the MEI NVM data */ 1221 kfree(mvm->mei_nvm_data); 1222 mvm->mei_nvm_data = NULL; 1223 1224 /* 1225 * We can't free the nvm_data we allocated based on the SAP 1226 * data because we registered to cfg80211 with the channels 1227 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1228 * just in order to be able free it later. 1229 * NULLify nvm_data so that we will read the NVM from the 1230 * firmware this time. 1231 */ 1232 mvm->temp_nvm_data = mvm->nvm_data; 1233 mvm->nvm_data = NULL; 1234 } 1235 1236 #ifdef CONFIG_PM_SLEEP 1237 /* fast_resume will be cleared by iwl_mvm_fast_resume */ 1238 fast_resume = mvm->fast_resume; 1239 1240 if (fast_resume) { 1241 iwl_mvm_mei_device_state(mvm, true); 1242 ret = iwl_mvm_fast_resume(mvm); 1243 if (ret) { 1244 iwl_mvm_stop_device(mvm); 1245 /* iwl_mvm_up() will be called further down */ 1246 } else { 1247 /* 1248 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon 1249 * mac_down() so that debugfs will stop honoring 1250 * requests after we flush all the workers. 1251 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again 1252 * now that we are back. This is a bit abusing the 1253 * flag since the firmware wasn't really ever stopped, 1254 * but this still serves the purpose. 1255 */ 1256 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1257 } 1258 } 1259 #endif /* CONFIG_PM_SLEEP */ 1260 1261 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1262 /* 1263 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1264 * so later code will - from now on - see that we're doing it. 1265 */ 1266 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1267 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1268 /* Clean up some internal and mac80211 state on restart */ 1269 iwl_mvm_restart_cleanup(mvm); 1270 } 1271 1272 /* we also want to load the firmware if fast_resume failed */ 1273 if (!fast_resume || ret) 1274 ret = iwl_mvm_up(mvm); 1275 1276 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1277 NULL); 1278 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1279 NULL); 1280 1281 mvm->last_reset_or_resume_time_jiffies = jiffies; 1282 1283 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1284 /* Something went wrong - we need to finish some cleanup 1285 * that normally iwl_mvm_mac_restart_complete() below 1286 * would do. 1287 */ 1288 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1289 } 1290 1291 return ret; 1292 } 1293 1294 int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1295 { 1296 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1297 int ret; 1298 int retry, max_retry = 0; 1299 1300 mutex_lock(&mvm->mutex); 1301 1302 /* we are starting the mac not in error flow, and restart is enabled */ 1303 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1304 iwlwifi_mod_params.fw_restart) 1305 max_retry = IWL_MAX_INIT_RETRY; 1306 1307 for (retry = 0; retry <= max_retry; retry++) { 1308 ret = __iwl_mvm_mac_start(mvm); 1309 if (ret != -ETIMEDOUT) 1310 break; 1311 1312 IWL_ERR(mvm, "mac start retry %d\n", retry); 1313 } 1314 1315 mutex_unlock(&mvm->mutex); 1316 1317 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1318 1319 return ret; 1320 } 1321 1322 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1323 { 1324 int ret; 1325 1326 guard(mvm)(mvm); 1327 1328 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1329 1330 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1331 if (ret) 1332 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1333 ret); 1334 1335 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1336 1337 /* 1338 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1339 * of packets the FW sent out, so we must reconnect. 1340 */ 1341 iwl_mvm_teardown_tdls_peers(mvm); 1342 1343 IWL_INFO(mvm, "restart completed\n"); 1344 iwl_trans_finish_sw_reset(mvm->trans); 1345 1346 /* no need to lock, adding in parallel would schedule too */ 1347 if (!list_empty(&mvm->add_stream_txqs)) 1348 schedule_work(&mvm->add_stream_wk); 1349 } 1350 1351 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1352 enum ieee80211_reconfig_type reconfig_type) 1353 { 1354 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1355 1356 switch (reconfig_type) { 1357 case IEEE80211_RECONFIG_TYPE_RESTART: 1358 iwl_mvm_restart_complete(mvm); 1359 break; 1360 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1361 break; 1362 } 1363 } 1364 1365 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend) 1366 { 1367 lockdep_assert_held(&mvm->mutex); 1368 1369 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1370 1371 /* firmware counters are obviously reset now, but we shouldn't 1372 * partially track so also clear the fw_reset_accu counters. 1373 */ 1374 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1375 1376 /* async_handlers_wk is now blocked */ 1377 1378 if (!iwl_mvm_has_new_station_api(mvm->fw)) 1379 iwl_mvm_rm_aux_sta(mvm); 1380 1381 if (suspend && 1382 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 1383 iwl_mvm_fast_suspend(mvm); 1384 /* From this point on, we won't touch the device */ 1385 iwl_mvm_mei_device_state(mvm, false); 1386 } else { 1387 iwl_mvm_stop_device(mvm); 1388 } 1389 1390 iwl_mvm_async_handlers_purge(mvm); 1391 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1392 1393 /* 1394 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1395 * hw (as restart_complete() won't be called in this case) and mac80211 1396 * won't execute the restart. 1397 * But make sure to cleanup interfaces that have gone down before/during 1398 * HW restart was requested. 1399 */ 1400 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1401 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1402 &mvm->status)) 1403 ieee80211_iterate_interfaces(mvm->hw, 0, 1404 iwl_mvm_cleanup_iterator, mvm); 1405 1406 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1407 * make sure there's nothing left there and warn if any is found. 1408 */ 1409 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1410 int i; 1411 1412 for (i = 0; i < mvm->max_scans; i++) { 1413 if (WARN_ONCE(mvm->scan_uid_status[i], 1414 "UMAC scan UID %d status was not cleaned\n", 1415 i)) 1416 mvm->scan_uid_status[i] = 0; 1417 } 1418 } 1419 } 1420 1421 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend) 1422 { 1423 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1424 1425 /* Stop internal MLO scan, if running */ 1426 mutex_lock(&mvm->mutex); 1427 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false); 1428 mutex_unlock(&mvm->mutex); 1429 1430 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk); 1431 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); 1432 flush_work(&mvm->async_handlers_wk); 1433 flush_work(&mvm->add_stream_wk); 1434 1435 /* 1436 * Lock and clear the firmware running bit here already, so that 1437 * new commands coming in elsewhere, e.g. from debugfs, will not 1438 * be able to proceed. This is important here because one of those 1439 * debugfs files causes the firmware dump to be triggered, and if we 1440 * don't stop debugfs accesses before canceling that it could be 1441 * retriggered after we flush it but before we've cleared the bit. 1442 */ 1443 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1444 1445 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1446 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1447 1448 /* 1449 * The work item could be running or queued if the 1450 * ROC time event stops just as we get here. 1451 */ 1452 flush_work(&mvm->roc_done_wk); 1453 1454 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1455 1456 mutex_lock(&mvm->mutex); 1457 __iwl_mvm_mac_stop(mvm, suspend); 1458 mutex_unlock(&mvm->mutex); 1459 1460 /* 1461 * The worker might have been waiting for the mutex, let it run and 1462 * discover that its list is now empty. 1463 */ 1464 cancel_work_sync(&mvm->async_handlers_wk); 1465 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk); 1466 } 1467 1468 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1469 { 1470 u16 i; 1471 1472 lockdep_assert_held(&mvm->mutex); 1473 1474 for (i = 0; i < NUM_PHY_CTX; i++) 1475 if (!mvm->phy_ctxts[i].ref) 1476 return &mvm->phy_ctxts[i]; 1477 1478 IWL_ERR(mvm, "No available PHY context\n"); 1479 return NULL; 1480 } 1481 1482 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, 1483 struct ieee80211_bss_conf *link_conf, 1484 s16 tx_power) 1485 { 1486 u32 cmd_id = REDUCE_TX_POWER_CMD; 1487 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(link_conf->vif); 1488 u32 mac_id = mvmvif->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_LINK), 1492 .common.link_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 u32 link_id; 1504 1505 if (WARN_ON(!mvmvif->link[link_conf->link_id])) 1506 return -ENODEV; 1507 1508 link_id = mvmvif->link[link_conf->link_id]->fw_link_id; 1509 1510 /* Those fields sit on the same place for v9 and v10 */ 1511 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_LINK); 1512 cmd_v9_v10.common.link_id = cpu_to_le32(link_id); 1513 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power); 1514 cmd_data = &cmd_v9_v10; 1515 } 1516 1517 if (cmd_ver == 10) 1518 len = sizeof(cmd_v9_v10.v10); 1519 else if (cmd_ver == 9) 1520 len = sizeof(cmd_v9_v10.v9); 1521 else if (cmd_ver == 8) 1522 len = sizeof(cmd.v8); 1523 else if (cmd_ver == 7) 1524 len = sizeof(cmd.v7); 1525 else if (cmd_ver == 6) 1526 len = sizeof(cmd.v6); 1527 else if (fw_has_api(&mvm->fw->ucode_capa, 1528 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1529 len = sizeof(cmd.v5); 1530 else if (fw_has_capa(&mvm->fw->ucode_capa, 1531 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1532 len = sizeof(cmd.v4); 1533 else 1534 len = sizeof(cmd.v3); 1535 1536 /* all structs have the same common part, add its length */ 1537 len += sizeof(cmd.common); 1538 1539 if (cmd_ver < 9) 1540 len += sizeof(cmd.per_band); 1541 1542 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data); 1543 1544 } 1545 1546 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta) 1547 { 1548 struct ieee80211_hw *hw = data; 1549 int i; 1550 1551 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 1552 struct iwl_mvm_txq *mvmtxq = 1553 iwl_mvm_txq_from_mac80211(sta->txq[i]); 1554 1555 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1556 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]); 1557 } 1558 } 1559 1560 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1561 struct ieee80211_vif *vif, 1562 struct ieee80211_bss_conf *link_conf) 1563 { 1564 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1565 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1566 int ret; 1567 1568 mutex_lock(&mvm->mutex); 1569 1570 if (vif->type == NL80211_IFTYPE_STATION) { 1571 struct iwl_mvm_sta *mvmsta; 1572 unsigned int link_id = link_conf->link_id; 1573 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id; 1574 1575 mvmvif->csa_bcn_pending = false; 1576 mvmvif->csa_blocks_tx = false; 1577 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id); 1578 1579 if (WARN_ON(!mvmsta)) { 1580 ret = -EIO; 1581 goto out_unlock; 1582 } 1583 1584 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1585 if (mvm->mld_api_is_used) 1586 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false); 1587 else 1588 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1589 1590 if (!fw_has_capa(&mvm->fw->ucode_capa, 1591 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1592 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 1593 if (ret) 1594 goto out_unlock; 1595 1596 iwl_mvm_stop_session_protection(mvm, vif); 1597 } 1598 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) { 1599 struct iwl_mvm_txq *mvmtxq = 1600 iwl_mvm_txq_from_mac80211(vif->txq); 1601 1602 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 1603 1604 local_bh_disable(); 1605 iwl_mvm_mac_itxq_xmit(hw, vif->txq); 1606 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw); 1607 local_bh_enable(); 1608 1609 mvmvif->csa_blocks_tx = false; 1610 } 1611 1612 mvmvif->ps_disabled = false; 1613 1614 ret = iwl_mvm_power_update_ps(mvm); 1615 1616 out_unlock: 1617 if (mvmvif->csa_failed) 1618 ret = -EIO; 1619 mutex_unlock(&mvm->mutex); 1620 1621 return ret; 1622 } 1623 1624 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1625 struct ieee80211_vif *vif, 1626 struct ieee80211_bss_conf *link_conf) 1627 { 1628 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1629 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1630 struct iwl_chan_switch_te_cmd cmd = { 1631 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1632 mvmvif->color)), 1633 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1634 }; 1635 1636 /* 1637 * In the new flow since FW is in charge of the timing, 1638 * if driver has canceled the channel switch he will receive the 1639 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1640 */ 1641 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1642 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1643 return; 1644 1645 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1646 1647 mutex_lock(&mvm->mutex); 1648 if (!fw_has_capa(&mvm->fw->ucode_capa, 1649 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1650 iwl_mvm_remove_csa_period(mvm, vif); 1651 else 1652 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1653 WIDE_ID(MAC_CONF_GROUP, 1654 CHANNEL_SWITCH_TIME_EVENT_CMD), 1655 0, sizeof(cmd), &cmd)); 1656 mvmvif->csa_failed = true; 1657 mutex_unlock(&mvm->mutex); 1658 1659 /* If we're here, we can't support MLD */ 1660 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf); 1661 } 1662 1663 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1664 { 1665 struct iwl_mvm_vif *mvmvif; 1666 struct ieee80211_vif *vif; 1667 1668 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1669 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1670 1671 /* Trigger disconnect (should clear the CSA state) */ 1672 ieee80211_chswitch_done(vif, false, 0); 1673 } 1674 1675 static u8 1676 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef) 1677 { 1678 int data_start; 1679 int control_start; 1680 int bw; 1681 1682 if (chandef->width == NL80211_CHAN_WIDTH_320) 1683 bw = 320; 1684 else if (chandef->width == NL80211_CHAN_WIDTH_160) 1685 bw = 160; 1686 else 1687 return 0; 1688 1689 /* data is bw wide so the start is half the width */ 1690 data_start = chandef->center_freq1 - bw / 2; 1691 /* control is 20Mhz width */ 1692 control_start = chandef->chan->center_freq - 10; 1693 1694 return (control_start - data_start) / 80; 1695 } 1696 1697 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm, 1698 struct ieee80211_vif *vif) 1699 { 1700 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1701 int ret; 1702 1703 lockdep_assert_held(&mvm->mutex); 1704 1705 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1706 if (ret) { 1707 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1708 return ret; 1709 } 1710 1711 /* Only queue for this station is the mcast queue, 1712 * which shouldn't be in TFD mask anyway 1713 */ 1714 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0, 1715 vif->type, 1716 IWL_STA_MULTICAST); 1717 } 1718 1719 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy, 1720 struct wiphy_work *wk) 1721 { 1722 struct iwl_mvm_vif *mvmvif = 1723 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work); 1724 struct iwl_mvm *mvm = mvmvif->mvm; 1725 struct ieee80211_vif *vif = 1726 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1727 1728 guard(mvm)(mvm); 1729 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION); 1730 } 1731 1732 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk) 1733 { 1734 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif, 1735 mlo_int_scan_wk.work); 1736 struct ieee80211_vif *vif = 1737 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1738 1739 guard(mvm)(mvmvif->mvm); 1740 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif); 1741 } 1742 1743 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk) 1744 { 1745 struct iwl_mvm_vif *mvmvif = 1746 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk); 1747 struct iwl_mvm *mvm = mvmvif->mvm; 1748 struct ieee80211_vif *vif = 1749 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1750 1751 guard(mvm)(mvm); 1752 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT); 1753 } 1754 1755 static void iwl_mvm_unblock_esr_tmp_non_bss(struct wiphy *wiphy, 1756 struct wiphy_work *wk) 1757 { 1758 struct iwl_mvm_vif *mvmvif = 1759 container_of(wk, struct iwl_mvm_vif, 1760 unblock_esr_tmp_non_bss_wk.work); 1761 struct iwl_mvm *mvm = mvmvif->mvm; 1762 struct ieee80211_vif *vif = 1763 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1764 1765 mutex_lock(&mvm->mutex); 1766 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TMP_NON_BSS); 1767 mutex_unlock(&mvm->mutex); 1768 } 1769 1770 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif) 1771 { 1772 lockdep_assert_held(&mvm->mutex); 1773 1774 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1775 return; 1776 1777 INIT_DELAYED_WORK(&mvmvif->csa_work, 1778 iwl_mvm_channel_switch_disconnect_wk); 1779 1780 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk, 1781 iwl_mvm_prevent_esr_done_wk); 1782 1783 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk, 1784 iwl_mvm_mlo_int_scan_wk); 1785 1786 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk, 1787 iwl_mvm_unblock_esr_tpt); 1788 1789 wiphy_delayed_work_init(&mvmvif->unblock_esr_tmp_non_bss_wk, 1790 iwl_mvm_unblock_esr_tmp_non_bss); 1791 } 1792 1793 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1794 struct ieee80211_vif *vif) 1795 { 1796 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1797 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1798 int ret; 1799 int i; 1800 1801 mutex_lock(&mvm->mutex); 1802 1803 iwl_mvm_mac_init_mvmvif(mvm, mvmvif); 1804 1805 mvmvif->mvm = mvm; 1806 1807 /* the first link always points to the default one */ 1808 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID; 1809 mvmvif->deflink.active = 0; 1810 mvmvif->link[0] = &mvmvif->deflink; 1811 1812 vif->driver_flags = IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC; 1813 1814 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf); 1815 if (ret) 1816 goto out; 1817 1818 /* 1819 * Not much to do here. The stack will not allow interface 1820 * types or combinations that we didn't advertise, so we 1821 * don't really have to check the types. 1822 */ 1823 1824 /* make sure that beacon statistics don't go backwards with FW reset */ 1825 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1826 for_each_mvm_vif_valid_link(mvmvif, i) 1827 mvmvif->link[i]->beacon_stats.accu_num_beacons += 1828 mvmvif->link[i]->beacon_stats.num_beacons; 1829 1830 /* Allocate resources for the MAC context, and add it to the fw */ 1831 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1832 if (ret) 1833 goto out; 1834 1835 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1836 1837 /* Currently not much to do for NAN */ 1838 if (vif->type == NL80211_IFTYPE_NAN) { 1839 ret = 0; 1840 goto out; 1841 } 1842 1843 /* 1844 * The AP binding flow can be done only after the beacon 1845 * template is configured (which happens only in the mac80211 1846 * start_ap() flow), and adding the broadcast station can happen 1847 * only after the binding. 1848 * In addition, since modifying the MAC before adding a bcast 1849 * station is not allowed by the FW, delay the adding of MAC context to 1850 * the point where we can also add the bcast station. 1851 * In short: there's not much we can do at this point, other than 1852 * allocating resources :) 1853 */ 1854 if (vif->type == NL80211_IFTYPE_AP || 1855 vif->type == NL80211_IFTYPE_ADHOC) { 1856 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1857 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1858 ret = 0; 1859 goto out; 1860 } 1861 1862 mvmvif->features |= hw->netdev_features; 1863 1864 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1865 if (ret) 1866 goto out_unlock; 1867 1868 ret = iwl_mvm_power_update_mac(mvm); 1869 if (ret) 1870 goto out_remove_mac; 1871 1872 /* beacon filtering */ 1873 ret = iwl_mvm_disable_beacon_filter(mvm, vif); 1874 if (ret) 1875 goto out_remove_mac; 1876 1877 if (!mvm->bf_allowed_vif && 1878 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1879 mvm->bf_allowed_vif = mvmvif; 1880 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1881 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1882 } 1883 1884 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) 1885 mvm->p2p_device_vif = vif; 1886 1887 iwl_mvm_tcm_add_vif(mvm, vif); 1888 1889 if (vif->type == NL80211_IFTYPE_MONITOR) { 1890 mvm->monitor_on = true; 1891 mvm->monitor_p80 = 1892 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper); 1893 } 1894 1895 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1896 iwl_mvm_vif_dbgfs_add_link(mvm, vif); 1897 1898 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1899 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1900 !mvm->csme_vif && mvm->mei_registered) { 1901 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1902 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1903 mvm->csme_vif = vif; 1904 } 1905 1906 out: 1907 if (!ret && (vif->type == NL80211_IFTYPE_AP || 1908 vif->type == NL80211_IFTYPE_ADHOC)) 1909 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif); 1910 1911 goto out_unlock; 1912 1913 out_remove_mac: 1914 mvmvif->deflink.phy_ctxt = NULL; 1915 iwl_mvm_mac_ctxt_remove(mvm, vif); 1916 out_unlock: 1917 mutex_unlock(&mvm->mutex); 1918 1919 return ret; 1920 } 1921 1922 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1923 struct ieee80211_vif *vif) 1924 { 1925 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1926 1927 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1928 /* 1929 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1930 * We assume here that all the packets sent to the OFFCHANNEL 1931 * queue are sent in ROC session. 1932 */ 1933 flush_work(&mvm->roc_done_wk); 1934 } 1935 1936 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1937 &mvmvif->prevent_esr_done_wk); 1938 1939 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1940 &mvmvif->mlo_int_scan_wk); 1941 1942 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 1943 wiphy_delayed_work_cancel(mvm->hw->wiphy, 1944 &mvmvif->unblock_esr_tmp_non_bss_wk); 1945 1946 cancel_delayed_work_sync(&mvmvif->csa_work); 1947 } 1948 1949 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1950 struct ieee80211_vif *vif) 1951 { 1952 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1953 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1954 struct iwl_probe_resp_data *probe_data; 1955 1956 iwl_mvm_prepare_mac_removal(mvm, vif); 1957 1958 if (!(vif->type == NL80211_IFTYPE_AP || 1959 vif->type == NL80211_IFTYPE_ADHOC)) 1960 iwl_mvm_tcm_rm_vif(mvm, vif); 1961 1962 mutex_lock(&mvm->mutex); 1963 1964 if (vif == mvm->csme_vif) { 1965 iwl_mei_set_netdev(NULL); 1966 mvm->csme_vif = NULL; 1967 } 1968 1969 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data, 1970 lockdep_is_held(&mvm->mutex)); 1971 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL); 1972 if (probe_data) 1973 kfree_rcu(probe_data, rcu_head); 1974 1975 if (mvm->bf_allowed_vif == mvmvif) { 1976 mvm->bf_allowed_vif = NULL; 1977 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1978 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1979 } 1980 1981 if (vif->bss_conf.ftm_responder) 1982 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1983 1984 iwl_mvm_vif_dbgfs_rm_link(mvm, vif); 1985 1986 /* 1987 * For AP/GO interface, the tear down of the resources allocated to the 1988 * interface is be handled as part of the stop_ap flow. 1989 */ 1990 if (vif->type == NL80211_IFTYPE_AP || 1991 vif->type == NL80211_IFTYPE_ADHOC) { 1992 #ifdef CONFIG_NL80211_TESTMODE 1993 if (vif == mvm->noa_vif) { 1994 mvm->noa_vif = NULL; 1995 mvm->noa_duration = 0; 1996 } 1997 #endif 1998 goto out; 1999 } 2000 2001 iwl_mvm_power_update_mac(mvm); 2002 2003 /* Before the interface removal, mac80211 would cancel the ROC, and the 2004 * ROC worker would be scheduled if needed. The worker would be flushed 2005 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no 2006 * binding etc. so nothing needs to be done here. 2007 */ 2008 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 2009 if (mvmvif->deflink.phy_ctxt) { 2010 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 2011 mvmvif->deflink.phy_ctxt = NULL; 2012 } 2013 mvm->p2p_device_vif = NULL; 2014 } 2015 2016 iwl_mvm_mac_ctxt_remove(mvm, vif); 2017 2018 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 2019 2020 if (vif->type == NL80211_IFTYPE_MONITOR) 2021 mvm->monitor_on = false; 2022 2023 out: 2024 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf); 2025 if (vif->type == NL80211_IFTYPE_AP || 2026 vif->type == NL80211_IFTYPE_ADHOC) { 2027 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta); 2028 iwl_mvm_dealloc_bcast_sta(mvm, vif); 2029 } 2030 2031 mutex_unlock(&mvm->mutex); 2032 } 2033 2034 struct iwl_mvm_mc_iter_data { 2035 struct iwl_mvm *mvm; 2036 int port_id; 2037 }; 2038 2039 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 2040 struct ieee80211_vif *vif) 2041 { 2042 struct iwl_mvm_mc_iter_data *data = _data; 2043 struct iwl_mvm *mvm = data->mvm; 2044 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 2045 struct iwl_host_cmd hcmd = { 2046 .id = MCAST_FILTER_CMD, 2047 .flags = CMD_ASYNC, 2048 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 2049 }; 2050 int ret, len; 2051 2052 /* if we don't have free ports, mcast frames will be dropped */ 2053 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 2054 return; 2055 2056 if (vif->type != NL80211_IFTYPE_STATION || 2057 !vif->cfg.assoc) 2058 return; 2059 2060 cmd->port_id = data->port_id++; 2061 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 2062 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 2063 2064 hcmd.len[0] = len; 2065 hcmd.data[0] = cmd; 2066 2067 ret = iwl_mvm_send_cmd(mvm, &hcmd); 2068 if (ret) 2069 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 2070 } 2071 2072 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 2073 { 2074 struct iwl_mvm_mc_iter_data iter_data = { 2075 .mvm = mvm, 2076 }; 2077 int ret; 2078 2079 lockdep_assert_held(&mvm->mutex); 2080 2081 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 2082 return; 2083 2084 ieee80211_iterate_active_interfaces_atomic( 2085 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2086 iwl_mvm_mc_iface_iterator, &iter_data); 2087 2088 /* 2089 * Send a (synchronous) ech command so that we wait for the 2090 * multiple asynchronous MCAST_FILTER_CMD commands sent by 2091 * the interface iterator. Otherwise, we might get here over 2092 * and over again (by userspace just sending a lot of these) 2093 * and the CPU can send them faster than the firmware can 2094 * process them. 2095 * Note that the CPU is still faster - but with this we'll 2096 * actually send fewer commands overall because the CPU will 2097 * not schedule the work in mac80211 as frequently if it's 2098 * still running when rescheduled (possibly multiple times). 2099 */ 2100 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 2101 if (ret) 2102 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 2103 } 2104 2105 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 2106 struct netdev_hw_addr_list *mc_list) 2107 { 2108 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2109 struct iwl_mcast_filter_cmd *cmd; 2110 struct netdev_hw_addr *addr; 2111 int addr_count; 2112 bool pass_all; 2113 int len; 2114 2115 addr_count = netdev_hw_addr_list_count(mc_list); 2116 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 2117 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 2118 if (pass_all) 2119 addr_count = 0; 2120 2121 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 2122 cmd = kzalloc(len, GFP_ATOMIC); 2123 if (!cmd) 2124 return 0; 2125 2126 if (pass_all) { 2127 cmd->pass_all = 1; 2128 return (u64)(unsigned long)cmd; 2129 } 2130 2131 netdev_hw_addr_list_for_each(addr, mc_list) { 2132 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 2133 cmd->count, addr->addr); 2134 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 2135 addr->addr, ETH_ALEN); 2136 cmd->count++; 2137 } 2138 2139 return (u64)(unsigned long)cmd; 2140 } 2141 2142 void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 2143 unsigned int changed_flags, 2144 unsigned int *total_flags, u64 multicast) 2145 { 2146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2147 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 2148 2149 guard(mvm)(mvm); 2150 2151 /* replace previous configuration */ 2152 kfree(mvm->mcast_filter_cmd); 2153 mvm->mcast_filter_cmd = cmd; 2154 2155 if (!cmd) 2156 goto out; 2157 2158 if (changed_flags & FIF_ALLMULTI) 2159 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 2160 2161 if (cmd->pass_all) 2162 cmd->count = 0; 2163 2164 iwl_mvm_recalc_multicast(mvm); 2165 out: 2166 *total_flags = 0; 2167 } 2168 2169 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 2170 struct ieee80211_vif *vif, 2171 unsigned int filter_flags, 2172 unsigned int changed_flags) 2173 { 2174 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2175 2176 /* We support only filter for probe requests */ 2177 if (!(changed_flags & FIF_PROBE_REQ)) 2178 return; 2179 2180 /* Supported only for p2p client interfaces */ 2181 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc || 2182 !vif->p2p) 2183 return; 2184 2185 guard(mvm)(mvm); 2186 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2187 } 2188 2189 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2190 { 2191 struct iwl_mu_group_mgmt_cmd cmd = {}; 2192 2193 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2194 WLAN_MEMBERSHIP_LEN); 2195 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2196 WLAN_USER_POSITION_LEN); 2197 2198 return iwl_mvm_send_cmd_pdu(mvm, 2199 WIDE_ID(DATA_PATH_GROUP, 2200 UPDATE_MU_GROUPS_CMD), 2201 0, sizeof(cmd), &cmd); 2202 } 2203 2204 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2205 struct ieee80211_vif *vif) 2206 { 2207 if (vif->bss_conf.mu_mimo_owner) { 2208 struct iwl_mu_group_mgmt_notif *notif = _data; 2209 2210 /* 2211 * MU-MIMO Group Id action frame is little endian. We treat 2212 * the data received from firmware as if it came from the 2213 * action frame, so no conversion is needed. 2214 */ 2215 ieee80211_update_mu_groups(vif, 0, 2216 (u8 *)¬if->membership_status, 2217 (u8 *)¬if->user_position); 2218 } 2219 } 2220 2221 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2222 struct iwl_rx_cmd_buffer *rxb) 2223 { 2224 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2225 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2226 2227 ieee80211_iterate_active_interfaces_atomic( 2228 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2229 iwl_mvm_mu_mimo_iface_iterator, notif); 2230 } 2231 2232 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2233 { 2234 u8 byte_num = ppe_pos_bit / 8; 2235 u8 bit_num = ppe_pos_bit % 8; 2236 u8 residue_bits; 2237 u8 res; 2238 2239 if (bit_num <= 5) 2240 return (ppe[byte_num] >> bit_num) & 2241 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2242 2243 /* 2244 * If bit_num > 5, we have to combine bits with next byte. 2245 * Calculate how many bits we need to take from current byte (called 2246 * here "residue_bits"), and add them to bits from next byte. 2247 */ 2248 2249 residue_bits = 8 - bit_num; 2250 2251 res = (ppe[byte_num + 1] & 2252 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2253 residue_bits; 2254 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2255 2256 return res; 2257 } 2258 2259 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2260 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2261 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit, 2262 bool inheritance) 2263 { 2264 int i; 2265 2266 /* 2267 * FW currently supports only nss == MAX_HE_SUPP_NSS 2268 * 2269 * If nss > MAX: we can ignore values we don't support 2270 * If nss < MAX: we can set zeros in other streams 2271 */ 2272 if (nss > MAX_HE_SUPP_NSS) { 2273 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2274 MAX_HE_SUPP_NSS); 2275 nss = MAX_HE_SUPP_NSS; 2276 } 2277 2278 for (i = 0; i < nss; i++) { 2279 u8 ru_index_tmp = ru_index_bitmap << 1; 2280 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2281 u8 bw; 2282 2283 for (bw = 0; 2284 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2285 bw++) { 2286 ru_index_tmp >>= 1; 2287 2288 /* 2289 * According to the 11be spec, if for a specific BW the PPE Thresholds 2290 * isn't present - it should inherit the thresholds from the last 2291 * BW for which we had PPE Thresholds. In 11ax though, we don't have 2292 * this inheritance - continue in this case 2293 */ 2294 if (!(ru_index_tmp & 1)) { 2295 if (inheritance) 2296 goto set_thresholds; 2297 else 2298 continue; 2299 } 2300 2301 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2302 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2303 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2304 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2305 2306 set_thresholds: 2307 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2308 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2309 } 2310 } 2311 } 2312 2313 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2314 struct ieee80211_link_sta *link_sta, 2315 struct iwl_he_pkt_ext_v2 *pkt_ext, 2316 bool inheritance) 2317 { 2318 u8 nss = (link_sta->he_cap.ppe_thres[0] & 2319 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2320 u8 *ppe = &link_sta->he_cap.ppe_thres[0]; 2321 u8 ru_index_bitmap = 2322 u8_get_bits(*ppe, 2323 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2324 /* Starting after PPE header */ 2325 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2326 2327 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit, 2328 inheritance); 2329 } 2330 2331 static int 2332 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2333 u8 nominal_padding) 2334 { 2335 int low_th = -1; 2336 int high_th = -1; 2337 int i; 2338 2339 /* all the macros are the same for EHT and HE */ 2340 switch (nominal_padding) { 2341 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US: 2342 low_th = IWL_HE_PKT_EXT_NONE; 2343 high_th = IWL_HE_PKT_EXT_NONE; 2344 break; 2345 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US: 2346 low_th = IWL_HE_PKT_EXT_BPSK; 2347 high_th = IWL_HE_PKT_EXT_NONE; 2348 break; 2349 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US: 2350 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US: 2351 low_th = IWL_HE_PKT_EXT_NONE; 2352 high_th = IWL_HE_PKT_EXT_BPSK; 2353 break; 2354 } 2355 2356 if (low_th < 0 || high_th < 0) 2357 return -EINVAL; 2358 2359 /* Set the PPE thresholds accordingly */ 2360 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2361 u8 bw; 2362 2363 for (bw = 0; 2364 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2365 bw++) { 2366 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2367 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2368 } 2369 } 2370 2371 return 0; 2372 } 2373 2374 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext, 2375 u8 nominal_padding) 2376 { 2377 int i; 2378 2379 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2380 u8 bw; 2381 2382 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2383 bw++) { 2384 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2385 2386 if (nominal_padding > 2387 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2388 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2389 qam_th[1] = IWL_HE_PKT_EXT_4096QAM; 2390 else if (nominal_padding == 2391 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US && 2392 qam_th[0] == IWL_HE_PKT_EXT_NONE && 2393 qam_th[1] == IWL_HE_PKT_EXT_NONE) 2394 qam_th[0] = IWL_HE_PKT_EXT_4096QAM; 2395 } 2396 } 2397 } 2398 2399 /* Set the pkt_ext field according to PPE Thresholds element */ 2400 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm, 2401 struct ieee80211_link_sta *link_sta, 2402 struct iwl_he_pkt_ext_v2 *pkt_ext) 2403 { 2404 u8 nominal_padding; 2405 int i, ret = 0; 2406 2407 if (WARN_ON(!link_sta)) 2408 return -EINVAL; 2409 2410 /* Initialize the PPE thresholds to "None" (7), as described in Table 2411 * 9-262ac of 80211.ax/D3.0. 2412 */ 2413 memset(pkt_ext, IWL_HE_PKT_EXT_NONE, 2414 sizeof(struct iwl_he_pkt_ext_v2)); 2415 2416 if (link_sta->eht_cap.has_eht) { 2417 nominal_padding = 2418 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5], 2419 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK); 2420 2421 /* If PPE Thresholds exists, parse them into a FW-familiar 2422 * format. 2423 */ 2424 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] & 2425 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) { 2426 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] & 2427 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1; 2428 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0]; 2429 u8 ru_index_bitmap = 2430 u16_get_bits(*ppe, 2431 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK); 2432 /* Starting after PPE header */ 2433 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE; 2434 2435 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, 2436 ppe, ppe_pos_bit, true); 2437 /* EHT PPE Thresholds doesn't exist - set the API according to 2438 * HE PPE Tresholds 2439 */ 2440 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2441 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2442 /* Even though HE Capabilities IE doesn't contain PPE 2443 * Thresholds for BW 320Mhz, thresholds for this BW will 2444 * be filled in with the same values as 160Mhz, due to 2445 * the inheritance, as required. 2446 */ 2447 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2448 true); 2449 2450 /* According to the requirements, for MCSs 12-13 the 2451 * maximum value between HE PPE Threshold and Common 2452 * Nominal Packet Padding needs to be taken 2453 */ 2454 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding); 2455 2456 /* if PPE Thresholds doesn't present in both EHT IE and HE IE - 2457 * take the Thresholds from Common Nominal Packet Padding field 2458 */ 2459 } else { 2460 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2461 nominal_padding); 2462 } 2463 } else if (link_sta->he_cap.has_he) { 2464 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2465 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] & 2466 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2467 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext, 2468 false); 2469 /* PPE Thresholds doesn't exist - set the API PPE values 2470 * according to Common Nominal Packet Padding field. 2471 */ 2472 } else { 2473 nominal_padding = 2474 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9], 2475 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2476 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2477 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext, 2478 nominal_padding); 2479 } 2480 } 2481 2482 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2483 int bw; 2484 2485 for (bw = 0; 2486 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]); 2487 bw++) { 2488 u8 *qam_th = 2489 &pkt_ext->pkt_ext_qam_th[i][bw][0]; 2490 2491 IWL_DEBUG_HT(mvm, 2492 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n", 2493 i, bw, qam_th[0], qam_th[1]); 2494 } 2495 } 2496 return ret; 2497 } 2498 2499 /* 2500 * This function sets the MU EDCA parameters ans returns whether MU EDCA 2501 * is enabled or not 2502 */ 2503 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm, 2504 const struct iwl_mvm_vif_link_info *link_info, 2505 struct iwl_he_backoff_conf *trig_based_txf) 2506 { 2507 int i; 2508 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2509 bool mu_edca_enabled = true; 2510 2511 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2512 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2513 &link_info->queue_params[i].mu_edca_param_rec; 2514 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2515 2516 if (!link_info->queue_params[i].mu_edca) { 2517 mu_edca_enabled = false; 2518 break; 2519 } 2520 2521 trig_based_txf[ac].cwmin = 2522 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2523 trig_based_txf[ac].cwmax = 2524 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2525 trig_based_txf[ac].aifsn = 2526 cpu_to_le16(mu_edca->aifsn & 0xf); 2527 trig_based_txf[ac].mu_time = 2528 cpu_to_le16(mu_edca->mu_edca_timer); 2529 } 2530 2531 return mu_edca_enabled; 2532 } 2533 2534 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 2535 { 2536 const struct ieee80211_supported_band *sband; 2537 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2538 2539 /* This capability is the same for all bands, 2540 * so take it from one of them. 2541 */ 2542 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 2543 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 2544 2545 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] & 2546 IEEE80211_HE_MAC_CAP2_ACK_EN)); 2547 } 2548 2549 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta, 2550 struct ieee80211_link_sta *link_sta) 2551 { 2552 u8 *mac_cap_info = 2553 &link_sta->he_cap.he_cap_elem.mac_cap_info[0]; 2554 __le32 htc_flags = 0; 2555 2556 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE) 2557 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2558 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2559 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2560 u8 link_adap = 2561 ((mac_cap_info[2] & 2562 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2563 (mac_cap_info[1] & 2564 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2565 2566 if (link_adap == 2) 2567 htc_flags |= 2568 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2569 else if (link_adap == 3) 2570 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2571 } 2572 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2573 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2574 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2575 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2576 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2577 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2578 2579 return htc_flags; 2580 } 2581 2582 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2583 struct ieee80211_vif *vif, u8 sta_id) 2584 { 2585 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2586 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2587 .sta_id = sta_id, 2588 .tid_limit = IWL_MAX_TID_COUNT, 2589 .bss_color = vif->bss_conf.he_bss_color.color, 2590 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2591 .frame_time_rts_th = 2592 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2593 }; 2594 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2595 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2596 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2597 int size; 2598 struct ieee80211_sta *sta; 2599 u32 flags; 2600 int i; 2601 void *cmd; 2602 2603 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2604 ver = 1; 2605 2606 switch (ver) { 2607 case 1: 2608 /* same layout as v2 except some data at the end */ 2609 cmd = &sta_ctxt_cmd_v2; 2610 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2611 break; 2612 case 2: 2613 cmd = &sta_ctxt_cmd_v2; 2614 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2615 break; 2616 case 3: 2617 cmd = &sta_ctxt_cmd; 2618 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2619 break; 2620 default: 2621 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2622 return; 2623 } 2624 2625 rcu_read_lock(); 2626 2627 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2628 if (IS_ERR_OR_NULL(sta)) { 2629 rcu_read_unlock(); 2630 WARN(1, "Can't find STA to configure HE\n"); 2631 return; 2632 } 2633 2634 if (!sta->deflink.he_cap.has_he) { 2635 rcu_read_unlock(); 2636 return; 2637 } 2638 2639 flags = 0; 2640 2641 /* Block 26-tone RU OFDMA transmissions */ 2642 if (mvmvif->deflink.he_ru_2mhz_block) 2643 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2644 2645 /* HTC flags */ 2646 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink); 2647 2648 /* PPE Thresholds */ 2649 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext)) 2650 flags |= STA_CTXT_HE_PACKET_EXT; 2651 2652 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2653 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2654 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2655 2656 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & 2657 IEEE80211_HE_MAC_CAP2_ACK_EN) 2658 flags |= STA_CTXT_HE_ACK_ENABLED; 2659 2660 rcu_read_unlock(); 2661 2662 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink, 2663 &sta_ctxt_cmd.trig_based_txf[0])) 2664 flags |= STA_CTXT_HE_MU_EDCA_CW; 2665 2666 if (vif->bss_conf.uora_exists) { 2667 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2668 2669 sta_ctxt_cmd.rand_alloc_ecwmin = 2670 vif->bss_conf.uora_ocw_range & 0x7; 2671 sta_ctxt_cmd.rand_alloc_ecwmax = 2672 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2673 } 2674 2675 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif)) 2676 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2677 2678 if (vif->bss_conf.nontransmitted) { 2679 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2680 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2681 vif->bss_conf.transmitter_bssid); 2682 sta_ctxt_cmd.max_bssid_indicator = 2683 vif->bss_conf.bssid_indicator; 2684 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2685 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2686 sta_ctxt_cmd.profile_periodicity = 2687 vif->bss_conf.profile_periodicity; 2688 } 2689 2690 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2691 2692 if (ver < 3) { 2693 /* fields before pkt_ext */ 2694 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2695 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2696 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2697 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2698 2699 /* pkt_ext */ 2700 for (i = 0; 2701 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2702 i++) { 2703 u8 bw; 2704 2705 for (bw = 0; 2706 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2707 bw++) { 2708 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2709 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2710 2711 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2712 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2713 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2714 } 2715 } 2716 2717 /* fields after pkt_ext */ 2718 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2719 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2720 sizeof(sta_ctxt_cmd_v2) - 2721 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2722 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2723 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2724 (u8 *)&sta_ctxt_cmd + 2725 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2726 sizeof(sta_ctxt_cmd) - 2727 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2728 sta_ctxt_cmd_v2.reserved3 = 0; 2729 } 2730 2731 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2732 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2733 } 2734 2735 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2736 u32 duration_override, unsigned int link_id) 2737 { 2738 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2739 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2740 2741 if (duration_override > duration) 2742 duration = duration_override; 2743 2744 /* Try really hard to protect the session and hear a beacon 2745 * The new session protection command allows us to protect the 2746 * session for a much longer time since the firmware will internally 2747 * create two events: a 300TU one with a very high priority that 2748 * won't be fragmented which should be enough for 99% of the cases, 2749 * and another one (which we configure here to be 900TU long) which 2750 * will have a slightly lower priority, but more importantly, can be 2751 * fragmented so that it'll allow other activities to run. 2752 */ 2753 if (fw_has_capa(&mvm->fw->ucode_capa, 2754 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2755 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2756 min_duration, false, 2757 link_id); 2758 else 2759 iwl_mvm_protect_session(mvm, vif, duration, 2760 min_duration, 500, false); 2761 } 2762 2763 /* Handle association common part to MLD and non-MLD modes */ 2764 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm, 2765 struct ieee80211_vif *vif, 2766 u64 changes) 2767 { 2768 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2769 int ret; 2770 int link_id; 2771 2772 /* The firmware tracks the MU-MIMO group on its own. 2773 * However, on HW restart we should restore this data. 2774 */ 2775 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2776 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) { 2777 ret = iwl_mvm_update_mu_groups(mvm, vif); 2778 if (ret) 2779 IWL_ERR(mvm, 2780 "failed to update VHT MU_MIMO groups\n"); 2781 } 2782 2783 iwl_mvm_recalc_multicast(mvm); 2784 2785 /* reset rssi values */ 2786 for_each_mvm_vif_valid_link(mvmvif, link_id) 2787 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0; 2788 2789 iwl_mvm_bt_coex_vif_change(mvm); 2790 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2791 IEEE80211_SMPS_AUTOMATIC); 2792 if (fw_has_capa(&mvm->fw->ucode_capa, 2793 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2794 iwl_mvm_config_scan(mvm); 2795 } 2796 2797 /* Execute the common part for MLD and non-MLD modes */ 2798 void 2799 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm, 2800 struct ieee80211_vif *vif, 2801 struct ieee80211_bss_conf *link_conf, 2802 u64 changes) 2803 { 2804 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2805 int ret; 2806 2807 if (changes & BSS_CHANGED_BEACON_INFO) { 2808 /* We received a beacon from the associated AP so 2809 * remove the session protection. 2810 */ 2811 iwl_mvm_stop_session_protection(mvm, vif); 2812 2813 iwl_mvm_sf_update(mvm, vif, false); 2814 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 2815 } 2816 2817 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2818 /* Send power command on every beacon change, 2819 * because we may have not enabled beacon abort yet. 2820 */ 2821 BSS_CHANGED_BEACON_INFO)) { 2822 ret = iwl_mvm_power_update_mac(mvm); 2823 if (ret) 2824 IWL_ERR(mvm, "failed to update power mode\n"); 2825 } 2826 2827 if (changes & BSS_CHANGED_CQM) { 2828 struct iwl_mvm_vif_link_info *link_info = 2829 mvmvif->link[link_conf->link_id]; 2830 2831 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n"); 2832 if (link_info) 2833 link_info->bf_data.last_cqm_event = 0; 2834 2835 if (mvmvif->bf_enabled) { 2836 /* FIXME: need to update per link when FW API will 2837 * support it 2838 */ 2839 ret = iwl_mvm_enable_beacon_filter(mvm, vif); 2840 if (ret) 2841 IWL_ERR(mvm, 2842 "failed to update CQM thresholds\n"); 2843 } 2844 } 2845 2846 if (changes & BSS_CHANGED_BANDWIDTH) 2847 iwl_mvm_update_link_smps(vif, link_conf); 2848 2849 if (changes & BSS_CHANGED_TPE) { 2850 IWL_DEBUG_CALIB(mvm, "Changing TPE\n"); 2851 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 2852 link_conf, 2853 false); 2854 } 2855 } 2856 2857 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2858 struct ieee80211_vif *vif, 2859 struct ieee80211_bss_conf *bss_conf, 2860 u64 changes) 2861 { 2862 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2863 int ret; 2864 int i; 2865 2866 /* 2867 * Re-calculate the tsf id, as the leader-follower relations depend 2868 * on the beacon interval, which was not known when the station 2869 * interface was added. 2870 */ 2871 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) { 2872 if ((vif->bss_conf.he_support && 2873 !iwlwifi_mod_params.disable_11ax)) 2874 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2875 2876 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2877 } 2878 2879 /* Update MU EDCA params */ 2880 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2881 vif->cfg.assoc && 2882 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)) 2883 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id); 2884 2885 /* 2886 * If we're not associated yet, take the (new) BSSID before associating 2887 * so the firmware knows. If we're already associated, then use the old 2888 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2889 * branch for disassociation below. 2890 */ 2891 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2892 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2893 2894 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid); 2895 if (ret) 2896 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2897 2898 /* after sending it once, adopt mac80211 data */ 2899 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN); 2900 mvmvif->associated = vif->cfg.assoc; 2901 2902 if (changes & BSS_CHANGED_ASSOC) { 2903 if (vif->cfg.assoc) { 2904 mvmvif->session_prot_connection_loss = false; 2905 2906 /* clear statistics to get clean beacon counter */ 2907 iwl_mvm_request_statistics(mvm, true); 2908 for_each_mvm_vif_valid_link(mvmvif, i) 2909 memset(&mvmvif->link[i]->beacon_stats, 0, 2910 sizeof(mvmvif->link[i]->beacon_stats)); 2911 2912 /* add quota for this interface */ 2913 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2914 if (ret) { 2915 IWL_ERR(mvm, "failed to update quotas\n"); 2916 return; 2917 } 2918 2919 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2920 &mvm->status) && 2921 !fw_has_capa(&mvm->fw->ucode_capa, 2922 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2923 /* 2924 * If we're restarting then the firmware will 2925 * obviously have lost synchronisation with 2926 * the AP. It will attempt to synchronise by 2927 * itself, but we can make it more reliable by 2928 * scheduling a session protection time event. 2929 * 2930 * The firmware needs to receive a beacon to 2931 * catch up with synchronisation, use 110% of 2932 * the beacon interval. 2933 * 2934 * Set a large maximum delay to allow for more 2935 * than a single interface. 2936 * 2937 * For new firmware versions, rely on the 2938 * firmware. This is relevant for DCM scenarios 2939 * only anyway. 2940 */ 2941 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2942 iwl_mvm_protect_session(mvm, vif, dur, dur, 2943 5 * dur, false); 2944 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2945 &mvm->status) && 2946 !vif->bss_conf.dtim_period) { 2947 /* 2948 * If we're not restarting and still haven't 2949 * heard a beacon (dtim period unknown) then 2950 * make sure we still have enough minimum time 2951 * remaining in the time event, since the auth 2952 * might actually have taken quite a while 2953 * (especially for SAE) and so the remaining 2954 * time could be small without us having heard 2955 * a beacon yet. 2956 */ 2957 iwl_mvm_protect_assoc(mvm, vif, 0, 0); 2958 } 2959 2960 iwl_mvm_sf_update(mvm, vif, false); 2961 iwl_mvm_power_vif_assoc(mvm, vif); 2962 if (vif->p2p) { 2963 iwl_mvm_update_smps(mvm, vif, 2964 IWL_MVM_SMPS_REQ_PROT, 2965 IEEE80211_SMPS_DYNAMIC, 0); 2966 } 2967 } else if (mvmvif->deflink.ap_sta_id != IWL_INVALID_STA) { 2968 iwl_mvm_mei_host_disassociated(mvm); 2969 /* 2970 * If update fails - SF might be running in associated 2971 * mode while disassociated - which is forbidden. 2972 */ 2973 ret = iwl_mvm_sf_update(mvm, vif, false); 2974 WARN_ONCE(ret && 2975 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2976 &mvm->status), 2977 "Failed to update SF upon disassociation\n"); 2978 2979 /* remove quota for this interface */ 2980 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2981 if (ret) 2982 IWL_ERR(mvm, "failed to update quotas\n"); 2983 2984 /* this will take the cleared BSSID from bss_conf */ 2985 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2986 if (ret) 2987 IWL_ERR(mvm, 2988 "failed to update MAC %pM (clear after unassoc)\n", 2989 vif->addr); 2990 } 2991 2992 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes); 2993 } 2994 2995 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf, 2996 changes); 2997 } 2998 2999 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw, 3000 struct ieee80211_vif *vif, 3001 int *ret) 3002 { 3003 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3004 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3005 int i; 3006 3007 lockdep_assert_held(&mvm->mutex); 3008 3009 mvmvif->ap_assoc_sta_count = 0; 3010 3011 /* must be set before quota calculations */ 3012 mvmvif->ap_ibss_active = true; 3013 3014 /* send all the early keys to the device now */ 3015 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3016 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 3017 3018 if (!key) 3019 continue; 3020 3021 mvmvif->ap_early_keys[i] = NULL; 3022 3023 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 3024 if (*ret) 3025 return true; 3026 } 3027 3028 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3029 iwl_mvm_vif_set_low_latency(mvmvif, true, 3030 LOW_LATENCY_VIF_TYPE); 3031 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 3032 } 3033 3034 /* power updated needs to be done before quotas */ 3035 iwl_mvm_power_update_mac(mvm); 3036 3037 return false; 3038 } 3039 3040 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 3041 struct ieee80211_vif *vif, 3042 struct ieee80211_bss_conf *link_conf) 3043 { 3044 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3045 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3046 int ret; 3047 3048 mutex_lock(&mvm->mutex); 3049 3050 /* 3051 * Re-calculate the tsf id, as the leader-follower relations depend on 3052 * the beacon interval, which was not known when the AP interface 3053 * was added. 3054 */ 3055 if (vif->type == NL80211_IFTYPE_AP) 3056 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 3057 3058 /* For older devices need to send beacon template before adding mac 3059 * context. For the newer, the beacon is a resource that belongs to a 3060 * MAC, so need to send beacon template after adding the mac. 3061 */ 3062 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) { 3063 /* Add the mac context */ 3064 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3065 if (ret) 3066 goto out_unlock; 3067 3068 /* Send the beacon template */ 3069 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3070 if (ret) 3071 goto out_unlock; 3072 } else { 3073 /* Send the beacon template */ 3074 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf); 3075 if (ret) 3076 goto out_unlock; 3077 3078 /* Add the mac context */ 3079 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 3080 if (ret) 3081 goto out_unlock; 3082 } 3083 3084 /* Perform the binding */ 3085 ret = iwl_mvm_binding_add_vif(mvm, vif); 3086 if (ret) 3087 goto out_remove; 3088 3089 /* 3090 * This is not very nice, but the simplest: 3091 * For older FWs adding the mcast sta before the bcast station may 3092 * cause assert 0x2b00. 3093 * This is fixed in later FW so make the order of removal depend on 3094 * the TLV 3095 */ 3096 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 3097 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3098 if (ret) 3099 goto out_unbind; 3100 /* 3101 * Send the bcast station. At this stage the TBTT and DTIM time 3102 * events are added and applied to the scheduler 3103 */ 3104 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3105 if (ret) { 3106 iwl_mvm_rm_mcast_sta(mvm, vif); 3107 goto out_unbind; 3108 } 3109 } else { 3110 /* 3111 * Send the bcast station. At this stage the TBTT and DTIM time 3112 * events are added and applied to the scheduler 3113 */ 3114 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 3115 if (ret) 3116 goto out_unbind; 3117 ret = iwl_mvm_add_mcast_sta(mvm, vif); 3118 if (ret) { 3119 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3120 goto out_unbind; 3121 } 3122 } 3123 3124 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret)) 3125 goto out_failed; 3126 3127 ret = iwl_mvm_update_quotas(mvm, false, NULL); 3128 if (ret) 3129 goto out_failed; 3130 3131 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3132 if (vif->p2p && mvm->p2p_device_vif) 3133 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3134 3135 iwl_mvm_bt_coex_vif_change(mvm); 3136 3137 /* we don't support TDLS during DCM */ 3138 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3139 iwl_mvm_teardown_tdls_peers(mvm); 3140 3141 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf); 3142 3143 goto out_unlock; 3144 3145 out_failed: 3146 iwl_mvm_power_update_mac(mvm); 3147 mvmvif->ap_ibss_active = false; 3148 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3149 iwl_mvm_rm_mcast_sta(mvm, vif); 3150 out_unbind: 3151 iwl_mvm_binding_remove_vif(mvm, vif); 3152 out_remove: 3153 iwl_mvm_mac_ctxt_remove(mvm, vif); 3154 out_unlock: 3155 mutex_unlock(&mvm->mutex); 3156 return ret; 3157 } 3158 3159 static int iwl_mvm_start_ap(struct ieee80211_hw *hw, 3160 struct ieee80211_vif *vif, 3161 struct ieee80211_bss_conf *link_conf) 3162 { 3163 return iwl_mvm_start_ap_ibss(hw, vif, link_conf); 3164 } 3165 3166 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw, 3167 struct ieee80211_vif *vif) 3168 { 3169 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf); 3170 } 3171 3172 /* Common part for MLD and non-MLD ops */ 3173 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm, 3174 struct ieee80211_vif *vif) 3175 { 3176 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3177 3178 lockdep_assert_held(&mvm->mutex); 3179 3180 iwl_mvm_prepare_mac_removal(mvm, vif); 3181 3182 /* Handle AP stop while in CSA */ 3183 if (rcu_access_pointer(mvm->csa_vif) == vif) { 3184 iwl_mvm_remove_time_event(mvm, mvmvif, 3185 &mvmvif->time_event_data); 3186 RCU_INIT_POINTER(mvm->csa_vif, NULL); 3187 mvmvif->csa_countdown = false; 3188 } 3189 3190 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 3191 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 3192 mvm->csa_tx_block_bcn_timeout = 0; 3193 } 3194 3195 mvmvif->ap_ibss_active = false; 3196 mvm->ap_last_beacon_gp2 = 0; 3197 3198 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 3199 iwl_mvm_vif_set_low_latency(mvmvif, false, 3200 LOW_LATENCY_VIF_TYPE); 3201 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 3202 } 3203 3204 iwl_mvm_bt_coex_vif_change(mvm); 3205 } 3206 3207 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 3208 struct ieee80211_vif *vif, 3209 struct ieee80211_bss_conf *link_conf) 3210 { 3211 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3212 3213 guard(mvm)(mvm); 3214 3215 iwl_mvm_stop_ap_ibss_common(mvm, vif); 3216 3217 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 3218 if (vif->p2p && mvm->p2p_device_vif) 3219 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 3220 3221 iwl_mvm_update_quotas(mvm, false, NULL); 3222 3223 iwl_mvm_ftm_responder_clear(mvm, vif); 3224 3225 /* 3226 * This is not very nice, but the simplest: 3227 * For older FWs removing the mcast sta before the bcast station may 3228 * cause assert 0x2b00. 3229 * This is fixed in later FW (which will stop beaconing when removing 3230 * bcast station). 3231 * So make the order of removal depend on the TLV 3232 */ 3233 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3234 iwl_mvm_rm_mcast_sta(mvm, vif); 3235 iwl_mvm_send_rm_bcast_sta(mvm, vif); 3236 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 3237 iwl_mvm_rm_mcast_sta(mvm, vif); 3238 iwl_mvm_binding_remove_vif(mvm, vif); 3239 3240 iwl_mvm_power_update_mac(mvm); 3241 3242 iwl_mvm_mac_ctxt_remove(mvm, vif); 3243 } 3244 3245 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, 3246 struct ieee80211_vif *vif, 3247 struct ieee80211_bss_conf *link_conf) 3248 { 3249 iwl_mvm_stop_ap_ibss(hw, vif, link_conf); 3250 } 3251 3252 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw, 3253 struct ieee80211_vif *vif) 3254 { 3255 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf); 3256 } 3257 3258 static void 3259 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 3260 struct ieee80211_vif *vif, 3261 struct ieee80211_bss_conf *bss_conf, 3262 u64 changes) 3263 { 3264 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3265 3266 /* Changes will be applied when the AP/IBSS is started */ 3267 if (!mvmvif->ap_ibss_active) 3268 return; 3269 3270 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 3271 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 3272 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 3273 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 3274 3275 /* Need to send a new beacon template to the FW */ 3276 if (changes & BSS_CHANGED_BEACON && 3277 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf)) 3278 IWL_WARN(mvm, "Failed updating beacon data\n"); 3279 3280 if (changes & BSS_CHANGED_FTM_RESPONDER) { 3281 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf); 3282 3283 if (ret) 3284 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 3285 ret); 3286 } 3287 3288 } 3289 3290 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 3291 struct ieee80211_vif *vif, 3292 struct ieee80211_bss_conf *bss_conf, 3293 u64 changes) 3294 { 3295 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3296 3297 guard(mvm)(mvm); 3298 3299 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle) 3300 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 3301 3302 switch (vif->type) { 3303 case NL80211_IFTYPE_STATION: 3304 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 3305 break; 3306 case NL80211_IFTYPE_AP: 3307 case NL80211_IFTYPE_ADHOC: 3308 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 3309 break; 3310 case NL80211_IFTYPE_MONITOR: 3311 if (changes & BSS_CHANGED_MU_GROUPS) 3312 iwl_mvm_update_mu_groups(mvm, vif); 3313 break; 3314 default: 3315 /* shouldn't happen */ 3316 WARN_ON_ONCE(1); 3317 } 3318 3319 if (changes & BSS_CHANGED_TXPOWER) { 3320 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 3321 bss_conf->txpower); 3322 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower); 3323 } 3324 } 3325 3326 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3327 struct ieee80211_scan_request *hw_req) 3328 { 3329 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3330 3331 if (hw_req->req.n_channels == 0 || 3332 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 3333 return -EINVAL; 3334 3335 guard(mvm)(mvm); 3336 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 3337 } 3338 3339 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 3340 struct ieee80211_vif *vif) 3341 { 3342 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3343 3344 guard(mvm)(mvm); 3345 3346 /* Due to a race condition, it's possible that mac80211 asks 3347 * us to stop a hw_scan when it's already stopped. This can 3348 * happen, for instance, if we stopped the scan ourselves, 3349 * called ieee80211_scan_completed() and the userspace called 3350 * cancel scan scan before ieee80211_scan_work() could run. 3351 * To handle that, simply return if the scan is not running. 3352 */ 3353 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 3354 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 3355 } 3356 3357 void 3358 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 3359 struct ieee80211_sta *sta, u16 tids, 3360 int num_frames, 3361 enum ieee80211_frame_release_type reason, 3362 bool more_data) 3363 { 3364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3365 3366 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3367 3368 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3369 tids, more_data, false); 3370 } 3371 3372 void 3373 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3374 struct ieee80211_sta *sta, u16 tids, 3375 int num_frames, 3376 enum ieee80211_frame_release_type reason, 3377 bool more_data) 3378 { 3379 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3380 3381 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3382 3383 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3384 tids, more_data, true); 3385 } 3386 3387 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3388 enum sta_notify_cmd cmd, 3389 struct ieee80211_sta *sta) 3390 { 3391 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3392 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3393 unsigned long txqs = 0, tids = 0; 3394 int tid; 3395 3396 /* 3397 * If we have TVQM then we get too high queue numbers - luckily 3398 * we really shouldn't get here with that because such hardware 3399 * should have firmware supporting buffer station offload. 3400 */ 3401 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3402 return; 3403 3404 spin_lock_bh(&mvmsta->lock); 3405 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3406 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3407 3408 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3409 continue; 3410 3411 __set_bit(tid_data->txq_id, &txqs); 3412 3413 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3414 continue; 3415 3416 __set_bit(tid, &tids); 3417 } 3418 3419 switch (cmd) { 3420 case STA_NOTIFY_SLEEP: 3421 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3422 ieee80211_sta_set_buffered(sta, tid, true); 3423 3424 if (txqs) 3425 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3426 /* 3427 * The fw updates the STA to be asleep. Tx packets on the Tx 3428 * queues to this station will not be transmitted. The fw will 3429 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3430 */ 3431 break; 3432 case STA_NOTIFY_AWAKE: 3433 if (WARN_ON(mvmsta->deflink.sta_id == IWL_INVALID_STA)) 3434 break; 3435 3436 if (txqs) 3437 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3438 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3439 break; 3440 default: 3441 break; 3442 } 3443 spin_unlock_bh(&mvmsta->lock); 3444 } 3445 3446 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 3447 enum sta_notify_cmd cmd, struct ieee80211_sta *sta) 3448 { 3449 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3450 } 3451 3452 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3453 { 3454 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3455 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3456 struct ieee80211_sta *sta; 3457 struct iwl_mvm_sta *mvmsta; 3458 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3459 3460 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3461 return; 3462 3463 rcu_read_lock(); 3464 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3465 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3466 rcu_read_unlock(); 3467 return; 3468 } 3469 3470 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3471 3472 if (!mvmsta->vif || 3473 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3474 rcu_read_unlock(); 3475 return; 3476 } 3477 3478 if (mvmsta->sleeping != sleeping) { 3479 mvmsta->sleeping = sleeping; 3480 __iwl_mvm_mac_sta_notify(mvm->hw, 3481 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3482 sta); 3483 ieee80211_sta_ps_transition(sta, sleeping); 3484 } 3485 3486 if (sleeping) { 3487 switch (notif->type) { 3488 case IWL_MVM_PM_EVENT_AWAKE: 3489 case IWL_MVM_PM_EVENT_ASLEEP: 3490 break; 3491 case IWL_MVM_PM_EVENT_UAPSD: 3492 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3493 break; 3494 case IWL_MVM_PM_EVENT_PS_POLL: 3495 ieee80211_sta_pspoll(sta); 3496 break; 3497 default: 3498 break; 3499 } 3500 } 3501 3502 rcu_read_unlock(); 3503 } 3504 3505 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3506 struct ieee80211_vif *vif, 3507 struct ieee80211_sta *sta) 3508 { 3509 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3510 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3511 unsigned int link_id; 3512 3513 lockdep_assert_wiphy(mvm->hw->wiphy); 3514 3515 /* 3516 * This is called before mac80211 does RCU synchronisation, 3517 * so here we already invalidate our internal RCU-protected 3518 * station pointer. The rest of the code will thus no longer 3519 * be able to find the station this way, and we don't rely 3520 * on further RCU synchronisation after the sta_state() 3521 * callback deleted the station. 3522 * Since there's mvm->mutex here, no need to have RCU lock for 3523 * mvm_sta->link access. 3524 */ 3525 guard(mvm)(mvm); 3526 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) { 3527 struct iwl_mvm_link_sta *link_sta; 3528 u32 sta_id; 3529 3530 if (!mvm_sta->link[link_id]) 3531 continue; 3532 3533 link_sta = rcu_dereference_protected(mvm_sta->link[link_id], 3534 lockdep_is_held(&mvm->mutex)); 3535 sta_id = link_sta->sta_id; 3536 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) { 3537 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], 3538 ERR_PTR(-ENOENT)); 3539 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL); 3540 } 3541 } 3542 } 3543 3544 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3545 const u8 *bssid) 3546 { 3547 int i; 3548 3549 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3550 struct iwl_mvm_tcm_mac *mdata; 3551 3552 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3553 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3554 mdata->opened_rx_ba_sessions = false; 3555 } 3556 3557 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3558 return; 3559 3560 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3561 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3562 return; 3563 } 3564 3565 if (!vif->p2p && 3566 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3567 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3568 return; 3569 } 3570 3571 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3572 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3573 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3574 return; 3575 } 3576 } 3577 3578 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3579 } 3580 3581 static void 3582 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3583 struct ieee80211_vif *vif, u8 *peer_addr, 3584 enum nl80211_tdls_operation action) 3585 { 3586 struct iwl_fw_dbg_trigger_tlv *trig; 3587 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3588 3589 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3590 FW_DBG_TRIGGER_TDLS); 3591 if (!trig) 3592 return; 3593 3594 tdls_trig = (void *)trig->data; 3595 3596 if (!(tdls_trig->action_bitmap & BIT(action))) 3597 return; 3598 3599 if (tdls_trig->peer_mode && 3600 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3601 return; 3602 3603 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3604 "TDLS event occurred, peer %pM, action %d", 3605 peer_addr, action); 3606 } 3607 3608 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3609 bool tolerated; 3610 }; 3611 3612 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3613 struct cfg80211_bss *bss, 3614 void *_data) 3615 { 3616 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3617 const struct cfg80211_bss_ies *ies; 3618 const struct element *elem; 3619 3620 rcu_read_lock(); 3621 ies = rcu_dereference(bss->ies); 3622 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3623 ies->len); 3624 3625 if (!elem || elem->datalen < 10 || 3626 !(elem->data[10] & 3627 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3628 data->tolerated = false; 3629 } 3630 rcu_read_unlock(); 3631 } 3632 3633 static void 3634 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3635 struct ieee80211_vif *vif, 3636 unsigned int link_id, 3637 struct ieee80211_bss_conf *link_conf) 3638 { 3639 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3640 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3641 .tolerated = true, 3642 }; 3643 3644 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan || 3645 !mvmvif->link[link_id])) 3646 return; 3647 3648 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) { 3649 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3650 return; 3651 } 3652 3653 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper, 3654 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3655 &iter_data); 3656 3657 /* 3658 * If there is at least one AP on radar channel that cannot 3659 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3660 */ 3661 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated; 3662 } 3663 3664 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3665 struct ieee80211_vif *vif) 3666 { 3667 struct ieee80211_supported_band *sband; 3668 const struct ieee80211_sta_he_cap *he_cap; 3669 3670 if (vif->type != NL80211_IFTYPE_STATION) 3671 return; 3672 3673 if (!mvm->cca_40mhz_workaround) 3674 return; 3675 3676 /* decrement and check that we reached zero */ 3677 mvm->cca_40mhz_workaround--; 3678 if (mvm->cca_40mhz_workaround) 3679 return; 3680 3681 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3682 3683 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3684 3685 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 3686 3687 if (he_cap) { 3688 /* we know that ours is writable */ 3689 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3690 3691 he->he_cap_elem.phy_cap_info[0] |= 3692 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3693 } 3694 } 3695 3696 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3697 struct ieee80211_vif *vif, 3698 struct iwl_mvm_sta *mvm_sta) 3699 { 3700 #if IS_ENABLED(CONFIG_IWLMEI) 3701 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3702 struct iwl_mei_conn_info conn_info = { 3703 .ssid_len = vif->cfg.ssid_len, 3704 }; 3705 3706 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3707 return; 3708 3709 if (!mvm->mei_registered) 3710 return; 3711 3712 /* FIXME: MEI needs to be updated for MLO */ 3713 if (!vif->bss_conf.chanreq.oper.chan) 3714 return; 3715 3716 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value; 3717 3718 switch (mvm_sta->pairwise_cipher) { 3719 case WLAN_CIPHER_SUITE_TKIP: 3720 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP; 3721 break; 3722 case WLAN_CIPHER_SUITE_CCMP: 3723 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3724 break; 3725 case WLAN_CIPHER_SUITE_GCMP: 3726 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3727 break; 3728 case WLAN_CIPHER_SUITE_GCMP_256: 3729 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3730 break; 3731 case 0: 3732 /* open profile */ 3733 break; 3734 default: 3735 /* cipher not supported, don't send anything to iwlmei */ 3736 return; 3737 } 3738 3739 switch (mvmvif->rekey_data.akm) { 3740 case WLAN_AKM_SUITE_SAE & 0xff: 3741 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3742 break; 3743 case WLAN_AKM_SUITE_PSK & 0xff: 3744 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3745 break; 3746 case WLAN_AKM_SUITE_8021X & 0xff: 3747 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3748 break; 3749 case 0: 3750 /* open profile */ 3751 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3752 break; 3753 default: 3754 /* auth method / AKM not supported */ 3755 /* TODO: All the FT vesions of these? */ 3756 return; 3757 } 3758 3759 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len); 3760 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3761 3762 /* TODO: add support for collocated AP data */ 3763 iwl_mei_host_associated(&conn_info, NULL); 3764 #endif 3765 } 3766 3767 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm, 3768 struct ieee80211_vif *vif, 3769 bool force_assoc_off) 3770 { 3771 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL); 3772 } 3773 3774 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3775 struct ieee80211_vif *vif, 3776 struct ieee80211_sta *sta, 3777 enum ieee80211_sta_state old_state, 3778 enum ieee80211_sta_state new_state) 3779 { 3780 static const struct iwl_mvm_sta_state_ops callbacks = { 3781 .add_sta = iwl_mvm_add_sta, 3782 .update_sta = iwl_mvm_update_sta, 3783 .rm_sta = iwl_mvm_rm_sta, 3784 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper, 3785 }; 3786 3787 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state, 3788 &callbacks); 3789 } 3790 3791 /* FIXME: temporary making two assumptions in all sta handling functions: 3792 * (1) when setting sta state, the link exists and protected 3793 * (2) if a link is valid in sta then it's valid in vif (can 3794 * use same index in the link array) 3795 */ 3796 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm, 3797 struct ieee80211_vif *vif, 3798 struct ieee80211_sta *sta) 3799 { 3800 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3801 unsigned int link_id; 3802 3803 for_each_mvm_vif_valid_link(mvmvif, link_id) { 3804 struct ieee80211_bss_conf *conf = 3805 link_conf_dereference_check(vif, link_id); 3806 struct ieee80211_link_sta *link_sta = 3807 link_sta_dereference_check(sta, link_id); 3808 3809 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt) 3810 continue; 3811 3812 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta, 3813 mvmvif->link[link_id]->phy_ctxt->channel->band); 3814 } 3815 } 3816 3817 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm, 3818 struct ieee80211_vif *vif, 3819 struct ieee80211_sta *sta) 3820 { 3821 struct ieee80211_link_sta *link_sta; 3822 unsigned int link_id; 3823 3824 /* Beacon interval check - firmware will crash if the beacon 3825 * interval is less than 16. We can't avoid connecting at all, 3826 * so refuse the station state change, this will cause mac80211 3827 * to abandon attempts to connect to this AP, and eventually 3828 * wpa_s will blocklist the AP... 3829 */ 3830 3831 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3832 struct ieee80211_bss_conf *link_conf = 3833 link_conf_dereference_protected(vif, link_id); 3834 3835 if (!link_conf) 3836 continue; 3837 3838 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) { 3839 IWL_ERR(mvm, 3840 "Beacon interval %d for AP %pM is too small\n", 3841 link_conf->beacon_int, link_sta->addr); 3842 return false; 3843 } 3844 3845 link_conf->he_support = link_sta->he_cap.has_he; 3846 } 3847 3848 return true; 3849 } 3850 3851 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw, 3852 struct ieee80211_vif *vif, 3853 struct ieee80211_sta *sta, 3854 bool is_sta) 3855 { 3856 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3857 struct ieee80211_link_sta *link_sta; 3858 unsigned int link_id; 3859 3860 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3861 struct ieee80211_bss_conf *link_conf = 3862 link_conf_dereference_protected(vif, link_id); 3863 3864 if (!link_conf || !mvmvif->link[link_id]) 3865 continue; 3866 3867 link_conf->he_support = link_sta->he_cap.has_he; 3868 3869 if (is_sta) { 3870 mvmvif->link[link_id]->he_ru_2mhz_block = false; 3871 if (link_sta->he_cap.has_he) 3872 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif, 3873 link_id, 3874 link_conf); 3875 } 3876 } 3877 } 3878 3879 static int 3880 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm, 3881 struct ieee80211_vif *vif, 3882 struct ieee80211_sta *sta, 3883 const struct iwl_mvm_sta_state_ops *callbacks) 3884 { 3885 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3886 struct ieee80211_link_sta *link_sta; 3887 unsigned int i; 3888 int ret; 3889 3890 lockdep_assert_held(&mvm->mutex); 3891 3892 if (vif->type == NL80211_IFTYPE_STATION && 3893 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta)) 3894 return -EINVAL; 3895 3896 if (sta->tdls && 3897 (vif->p2p || 3898 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_TDLS_STA_COUNT || 3899 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3900 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3901 return -EBUSY; 3902 } 3903 3904 ret = callbacks->add_sta(mvm, vif, sta); 3905 if (sta->tdls && ret == 0) { 3906 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3907 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3908 NL80211_TDLS_SETUP); 3909 } 3910 3911 if (ret) 3912 return ret; 3913 3914 for_each_sta_active_link(vif, sta, link_sta, i) 3915 link_sta->agg.max_rc_amsdu_len = 1; 3916 3917 ieee80211_sta_recalc_aggregates(sta); 3918 3919 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3920 mvmvif->ap_sta = sta; 3921 3922 /* 3923 * Initialize the rates here already - this really tells 3924 * the firmware only what the supported legacy rates are 3925 * (may be) since it's initialized already from what the 3926 * AP advertised in the beacon/probe response. This will 3927 * allow the firmware to send auth/assoc frames with one 3928 * of the supported rates already, rather than having to 3929 * use a mandatory rate. 3930 * If we're the AP, we'll just assume mandatory rates at 3931 * this point, but we know nothing about the STA anyway. 3932 */ 3933 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3934 3935 return 0; 3936 } 3937 3938 static int 3939 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw, 3940 struct iwl_mvm *mvm, 3941 struct ieee80211_vif *vif, 3942 struct ieee80211_sta *sta, 3943 const struct iwl_mvm_sta_state_ops *callbacks) 3944 { 3945 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3946 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3947 struct ieee80211_link_sta *link_sta; 3948 unsigned int link_id; 3949 3950 lockdep_assert_held(&mvm->mutex); 3951 3952 if (vif->type == NL80211_IFTYPE_AP) { 3953 iwl_mvm_vif_set_he_support(hw, vif, sta, false); 3954 mvmvif->ap_assoc_sta_count++; 3955 callbacks->mac_ctxt_changed(mvm, vif, false); 3956 3957 /* since the below is not for MLD API, it's ok to use 3958 * the default bss_conf 3959 */ 3960 if (!mvm->mld_api_is_used && 3961 (vif->bss_conf.he_support && 3962 !iwlwifi_mod_params.disable_11ax)) 3963 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id); 3964 } else if (vif->type == NL80211_IFTYPE_STATION) { 3965 iwl_mvm_vif_set_he_support(hw, vif, sta, true); 3966 3967 callbacks->mac_ctxt_changed(mvm, vif, false); 3968 3969 if (!mvm->mld_api_is_used) 3970 goto out; 3971 3972 for_each_sta_active_link(vif, sta, link_sta, link_id) { 3973 struct ieee80211_bss_conf *link_conf = 3974 link_conf_dereference_protected(vif, link_id); 3975 3976 if (WARN_ON(!link_conf)) 3977 return -EINVAL; 3978 if (!mvmvif->link[link_id]) 3979 continue; 3980 3981 iwl_mvm_link_changed(mvm, vif, link_conf, 3982 LINK_CONTEXT_MODIFY_ALL & 3983 ~LINK_CONTEXT_MODIFY_ACTIVE, 3984 true); 3985 } 3986 } 3987 3988 out: 3989 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 3990 3991 return callbacks->update_sta(mvm, vif, sta); 3992 } 3993 3994 static int 3995 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm, 3996 struct ieee80211_vif *vif, 3997 struct ieee80211_sta *sta, 3998 const struct iwl_mvm_sta_state_ops *callbacks) 3999 { 4000 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4001 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4002 4003 lockdep_assert_held(&mvm->mutex); 4004 4005 /* we don't support TDLS during DCM */ 4006 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4007 iwl_mvm_teardown_tdls_peers(mvm); 4008 4009 if (sta->tdls) { 4010 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4011 NL80211_TDLS_ENABLE_LINK); 4012 } else { 4013 /* enable beacon filtering */ 4014 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); 4015 4016 mvmvif->authorized = 1; 4017 4018 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 4019 mvmvif->link_selection_res = vif->active_links; 4020 mvmvif->link_selection_primary = 4021 vif->active_links ? __ffs(vif->active_links) : 0; 4022 } 4023 4024 callbacks->mac_ctxt_changed(mvm, vif, false); 4025 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 4026 4027 memset(&mvmvif->last_esr_exit, 0, 4028 sizeof(mvmvif->last_esr_exit)); 4029 4030 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0); 4031 4032 /* Block until FW notif will arrive */ 4033 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0); 4034 4035 /* when client is authorized (AP station marked as such), 4036 * try to enable the best link(s). 4037 */ 4038 if (vif->type == NL80211_IFTYPE_STATION && 4039 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4040 iwl_mvm_select_links(mvm, vif); 4041 } 4042 4043 mvm_sta->authorized = true; 4044 4045 /* MFP is set by default before the station is authorized. 4046 * Clear it here in case it's not used. 4047 */ 4048 if (!sta->mfp) { 4049 int ret = callbacks->update_sta(mvm, vif, sta); 4050 4051 if (ret) 4052 return ret; 4053 } 4054 4055 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4056 4057 return 0; 4058 } 4059 4060 static int 4061 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm, 4062 struct ieee80211_vif *vif, 4063 struct ieee80211_sta *sta, 4064 const struct iwl_mvm_sta_state_ops *callbacks) 4065 { 4066 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4067 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4068 4069 lockdep_assert_held(&mvm->mutex); 4070 4071 mvmsta->authorized = false; 4072 4073 /* once we move into assoc state, need to update rate scale to 4074 * disable using wide bandwidth 4075 */ 4076 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4077 4078 if (!sta->tdls) { 4079 /* Set this but don't call iwl_mvm_mac_ctxt_changed() 4080 * yet to avoid sending high prio again for a little 4081 * time. 4082 */ 4083 mvmvif->authorized = 0; 4084 mvmvif->link_selection_res = 0; 4085 4086 /* disable beacon filtering */ 4087 iwl_mvm_disable_beacon_filter(mvm, vif); 4088 4089 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4090 &mvmvif->prevent_esr_done_wk); 4091 4092 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4093 &mvmvif->mlo_int_scan_wk); 4094 4095 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk); 4096 wiphy_delayed_work_cancel(mvm->hw->wiphy, 4097 &mvmvif->unblock_esr_tmp_non_bss_wk); 4098 } 4099 4100 return 0; 4101 } 4102 4103 void iwl_mvm_smps_workaround(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 4104 bool update) 4105 { 4106 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4107 4108 if (!iwl_mvm_has_rlc_offload(mvm)) 4109 return; 4110 4111 mvmvif->ps_disabled = !vif->cfg.ps; 4112 4113 if (update) 4114 iwl_mvm_power_update_mac(mvm); 4115 } 4116 4117 /* Common part for MLD and non-MLD modes */ 4118 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw, 4119 struct ieee80211_vif *vif, 4120 struct ieee80211_sta *sta, 4121 enum ieee80211_sta_state old_state, 4122 enum ieee80211_sta_state new_state, 4123 const struct iwl_mvm_sta_state_ops *callbacks) 4124 { 4125 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4126 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4127 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4128 struct ieee80211_link_sta *link_sta; 4129 unsigned int link_id; 4130 int ret; 4131 4132 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 4133 sta->addr, old_state, new_state); 4134 4135 /* 4136 * If we are in a STA removal flow and in DQA mode: 4137 * 4138 * This is after the sync_rcu part, so the queues have already been 4139 * flushed. No more TXs on their way in mac80211's path, and no more in 4140 * the queues. 4141 * Also, we won't be getting any new TX frames for this station. 4142 * What we might have are deferred TX frames that need to be taken care 4143 * of. 4144 * 4145 * Drop any still-queued deferred-frame before removing the STA, and 4146 * make sure the worker is no longer handling frames for this STA. 4147 */ 4148 if (old_state == IEEE80211_STA_NONE && 4149 new_state == IEEE80211_STA_NOTEXIST) { 4150 flush_work(&mvm->add_stream_wk); 4151 4152 /* 4153 * No need to make sure deferred TX indication is off since the 4154 * worker will already remove it if it was on 4155 */ 4156 4157 /* 4158 * Additionally, reset the 40 MHz capability if we disconnected 4159 * from the AP now. 4160 */ 4161 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 4162 4163 /* Also free dup data just in case any assertions below fail */ 4164 kfree(mvm_sta->dup_data); 4165 } 4166 4167 mutex_lock(&mvm->mutex); 4168 4169 /* this would be a mac80211 bug ... but don't crash, unless we had a 4170 * firmware crash while we were activating a link, in which case it is 4171 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in 4172 * recovery flow since we spit tons of error messages anyway. 4173 */ 4174 for_each_sta_active_link(vif, sta, link_sta, link_id) { 4175 if (WARN_ON_ONCE(!mvmvif->link[link_id] || 4176 !mvmvif->link[link_id]->phy_ctxt)) { 4177 mutex_unlock(&mvm->mutex); 4178 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4179 &mvm->status) ? 0 : -EINVAL; 4180 } 4181 } 4182 4183 /* track whether or not the station is associated */ 4184 mvm_sta->sta_state = new_state; 4185 4186 if (old_state == IEEE80211_STA_NOTEXIST && 4187 new_state == IEEE80211_STA_NONE) { 4188 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta, 4189 callbacks); 4190 if (ret < 0) 4191 goto out_unlock; 4192 } else if (old_state == IEEE80211_STA_NONE && 4193 new_state == IEEE80211_STA_AUTH) { 4194 /* 4195 * EBS may be disabled due to previous failures reported by FW. 4196 * Reset EBS status here assuming environment has been changed. 4197 */ 4198 mvm->last_ebs_successful = true; 4199 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 4200 ret = 0; 4201 } else if (old_state == IEEE80211_STA_AUTH && 4202 new_state == IEEE80211_STA_ASSOC) { 4203 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta, 4204 callbacks); 4205 } else if (old_state == IEEE80211_STA_ASSOC && 4206 new_state == IEEE80211_STA_AUTHORIZED) { 4207 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta, 4208 callbacks); 4209 iwl_mvm_smps_workaround(mvm, vif, true); 4210 } else if (old_state == IEEE80211_STA_AUTHORIZED && 4211 new_state == IEEE80211_STA_ASSOC) { 4212 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta, 4213 callbacks); 4214 } else if (old_state == IEEE80211_STA_ASSOC && 4215 new_state == IEEE80211_STA_AUTH) { 4216 if (vif->type == NL80211_IFTYPE_AP) { 4217 mvmvif->ap_assoc_sta_count--; 4218 callbacks->mac_ctxt_changed(mvm, vif, false); 4219 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 4220 iwl_mvm_stop_session_protection(mvm, vif); 4221 ret = 0; 4222 } else if (old_state == IEEE80211_STA_AUTH && 4223 new_state == IEEE80211_STA_NONE) { 4224 ret = 0; 4225 } else if (old_state == IEEE80211_STA_NONE && 4226 new_state == IEEE80211_STA_NOTEXIST) { 4227 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 4228 iwl_mvm_stop_session_protection(mvm, vif); 4229 mvmvif->ap_sta = NULL; 4230 } 4231 ret = callbacks->rm_sta(mvm, vif, sta); 4232 if (sta->tdls) { 4233 iwl_mvm_recalc_tdls_state(mvm, vif, false); 4234 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 4235 NL80211_TDLS_DISABLE_LINK); 4236 } 4237 4238 if (unlikely(ret && 4239 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 4240 &mvm->status))) 4241 ret = 0; 4242 } else { 4243 ret = -EIO; 4244 } 4245 out_unlock: 4246 mutex_unlock(&mvm->mutex); 4247 4248 if (sta->tdls && ret == 0) { 4249 if (old_state == IEEE80211_STA_NOTEXIST && 4250 new_state == IEEE80211_STA_NONE) 4251 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4252 else if (old_state == IEEE80211_STA_NONE && 4253 new_state == IEEE80211_STA_NOTEXIST) 4254 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 4255 } 4256 4257 return ret; 4258 } 4259 4260 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 4261 { 4262 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4263 4264 mvm->rts_threshold = value; 4265 4266 return 0; 4267 } 4268 4269 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4270 struct ieee80211_link_sta *link_sta, u32 changed) 4271 { 4272 struct ieee80211_sta *sta = link_sta->sta; 4273 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4274 4275 if (changed & (IEEE80211_RC_BW_CHANGED | 4276 IEEE80211_RC_SUPP_RATES_CHANGED | 4277 IEEE80211_RC_NSS_CHANGED)) 4278 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta); 4279 4280 if (vif->type == NL80211_IFTYPE_STATION && 4281 changed & IEEE80211_RC_NSS_CHANGED) 4282 iwl_mvm_sf_update(mvm, vif, false); 4283 } 4284 4285 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 4286 struct ieee80211_vif *vif, 4287 unsigned int link_id, u16 ac, 4288 const struct ieee80211_tx_queue_params *params) 4289 { 4290 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4291 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4292 4293 mvmvif->deflink.queue_params[ac] = *params; 4294 4295 /* 4296 * No need to update right away, we'll get BSS_CHANGED_QOS 4297 * The exception is P2P_DEVICE interface which needs immediate update. 4298 */ 4299 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 4300 guard(mvm)(mvm); 4301 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4302 } 4303 return 0; 4304 } 4305 4306 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 4307 struct ieee80211_vif *vif, 4308 struct ieee80211_prep_tx_info *info) 4309 { 4310 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4312 4313 if (info->was_assoc && !mvmvif->session_prot_connection_loss) 4314 return; 4315 4316 guard(mvm)(mvm); 4317 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id); 4318 } 4319 4320 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 4321 struct ieee80211_vif *vif, 4322 struct ieee80211_prep_tx_info *info) 4323 { 4324 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4325 4326 /* for successful cases (auth/assoc), don't cancel session protection */ 4327 if (info->success) 4328 return; 4329 4330 guard(mvm)(mvm); 4331 iwl_mvm_stop_session_protection(mvm, vif); 4332 } 4333 4334 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 4335 struct ieee80211_vif *vif, 4336 struct cfg80211_sched_scan_request *req, 4337 struct ieee80211_scan_ies *ies) 4338 { 4339 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4340 4341 guard(mvm)(mvm); 4342 4343 if (!vif->cfg.idle) 4344 return -EBUSY; 4345 4346 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 4347 } 4348 4349 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 4350 struct ieee80211_vif *vif) 4351 { 4352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4353 int ret; 4354 4355 mutex_lock(&mvm->mutex); 4356 4357 /* Due to a race condition, it's possible that mac80211 asks 4358 * us to stop a sched_scan when it's already stopped. This 4359 * can happen, for instance, if we stopped the scan ourselves, 4360 * called ieee80211_sched_scan_stopped() and the userspace called 4361 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 4362 * could run. To handle this, simply return if the scan is 4363 * not running. 4364 */ 4365 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 4366 mutex_unlock(&mvm->mutex); 4367 return 0; 4368 } 4369 4370 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 4371 mutex_unlock(&mvm->mutex); 4372 iwl_mvm_wait_for_async_handlers(mvm); 4373 4374 return ret; 4375 } 4376 4377 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 4378 enum set_key_cmd cmd, 4379 struct ieee80211_vif *vif, 4380 struct ieee80211_sta *sta, 4381 struct ieee80211_key_conf *key) 4382 { 4383 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4384 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4385 struct iwl_mvm_sta *mvmsta = NULL; 4386 struct iwl_mvm_key_pn *ptk_pn = NULL; 4387 int keyidx = key->keyidx; 4388 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD); 4389 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0); 4390 int ret, i; 4391 u8 key_offset; 4392 4393 if (sta) 4394 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4395 4396 switch (key->cipher) { 4397 case WLAN_CIPHER_SUITE_TKIP: 4398 if (!mvm->trans->trans_cfg->gen2) { 4399 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 4400 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4401 } else if (vif->type == NL80211_IFTYPE_STATION) { 4402 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 4403 } else { 4404 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 4405 return -EOPNOTSUPP; 4406 } 4407 break; 4408 case WLAN_CIPHER_SUITE_CCMP: 4409 case WLAN_CIPHER_SUITE_GCMP: 4410 case WLAN_CIPHER_SUITE_GCMP_256: 4411 if (!iwl_mvm_has_new_tx_api(mvm)) 4412 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 4413 break; 4414 case WLAN_CIPHER_SUITE_AES_CMAC: 4415 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 4416 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 4417 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 4418 break; 4419 case WLAN_CIPHER_SUITE_WEP40: 4420 case WLAN_CIPHER_SUITE_WEP104: 4421 if (vif->type == NL80211_IFTYPE_STATION) 4422 break; 4423 if (iwl_mvm_has_new_tx_api(mvm)) 4424 return -EOPNOTSUPP; 4425 /* support HW crypto on TX */ 4426 return 0; 4427 default: 4428 return -EOPNOTSUPP; 4429 } 4430 4431 switch (cmd) { 4432 case SET_KEY: 4433 if (vif->type == NL80211_IFTYPE_STATION && 4434 (keyidx == 6 || keyidx == 7)) 4435 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 4436 key); 4437 4438 if ((vif->type == NL80211_IFTYPE_ADHOC || 4439 vif->type == NL80211_IFTYPE_AP) && !sta) { 4440 /* 4441 * GTK on AP interface is a TX-only key, return 0; 4442 * on IBSS they're per-station and because we're lazy 4443 * we don't support them for RX, so do the same. 4444 * CMAC/GMAC in AP/IBSS modes must be done in software 4445 * on older NICs. 4446 * 4447 * Except, of course, beacon protection - it must be 4448 * offloaded since we just set a beacon template, and 4449 * then we must also offload the IGTK (not just BIGTK) 4450 * for firmware reasons. 4451 * 4452 * So just check for beacon protection - if we don't 4453 * have it we cannot get here with keyidx >= 6, and 4454 * if we do have it we need to send the key to FW in 4455 * all cases (CMAC/GMAC). 4456 */ 4457 if (!wiphy_ext_feature_isset(hw->wiphy, 4458 NL80211_EXT_FEATURE_BEACON_PROTECTION) && 4459 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 4460 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 4461 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) { 4462 ret = -EOPNOTSUPP; 4463 break; 4464 } 4465 4466 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 4467 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 4468 !iwl_mvm_has_new_tx_api(mvm)) { 4469 key->hw_key_idx = STA_KEY_IDX_INVALID; 4470 ret = 0; 4471 break; 4472 } 4473 4474 if (!mvmvif->ap_ibss_active) { 4475 for (i = 0; 4476 i < ARRAY_SIZE(mvmvif->ap_early_keys); 4477 i++) { 4478 if (!mvmvif->ap_early_keys[i]) { 4479 mvmvif->ap_early_keys[i] = key; 4480 break; 4481 } 4482 } 4483 4484 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 4485 ret = -ENOSPC; 4486 else 4487 ret = 0; 4488 4489 break; 4490 } 4491 } 4492 4493 /* During FW restart, in order to restore the state as it was, 4494 * don't try to reprogram keys we previously failed for. 4495 */ 4496 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4497 key->hw_key_idx == STA_KEY_IDX_INVALID) { 4498 IWL_DEBUG_MAC80211(mvm, 4499 "skip invalid idx key programming during restart\n"); 4500 ret = 0; 4501 break; 4502 } 4503 4504 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 4505 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4506 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4507 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4508 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4509 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4510 struct ieee80211_key_seq seq; 4511 int tid, q; 4512 4513 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 4514 ptk_pn = kzalloc(struct_size(ptk_pn, q, 4515 mvm->trans->num_rx_queues), 4516 GFP_KERNEL); 4517 if (!ptk_pn) { 4518 ret = -ENOMEM; 4519 break; 4520 } 4521 4522 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 4523 ieee80211_get_key_rx_seq(key, tid, &seq); 4524 for (q = 0; q < mvm->trans->num_rx_queues; q++) 4525 memcpy(ptk_pn->q[q].pn[tid], 4526 seq.ccmp.pn, 4527 IEEE80211_CCMP_PN_LEN); 4528 } 4529 4530 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 4531 } 4532 4533 /* in HW restart reuse the index, otherwise request a new one */ 4534 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 4535 key_offset = key->hw_key_idx; 4536 else 4537 key_offset = STA_KEY_IDX_INVALID; 4538 4539 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 4540 mvmsta->pairwise_cipher = key->cipher; 4541 4542 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n", 4543 sta ? sta->addr : NULL, key->keyidx); 4544 4545 if (sec_key_ver) 4546 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key); 4547 else 4548 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 4549 4550 if (ret) { 4551 IWL_WARN(mvm, "set key failed\n"); 4552 key->hw_key_idx = STA_KEY_IDX_INVALID; 4553 if (ptk_pn) { 4554 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4555 kfree(ptk_pn); 4556 } 4557 /* 4558 * can't add key for RX, but we don't need it 4559 * in the device for TX so still return 0, 4560 * unless we have new TX API where we cannot 4561 * put key material into the TX_CMD 4562 */ 4563 if (iwl_mvm_has_new_tx_api(mvm)) 4564 ret = -EOPNOTSUPP; 4565 else 4566 ret = 0; 4567 } 4568 4569 break; 4570 case DISABLE_KEY: 4571 if (vif->type == NL80211_IFTYPE_STATION && 4572 (keyidx == 6 || keyidx == 7)) 4573 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 4574 NULL); 4575 4576 ret = -ENOENT; 4577 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 4578 if (mvmvif->ap_early_keys[i] == key) { 4579 mvmvif->ap_early_keys[i] = NULL; 4580 ret = 0; 4581 } 4582 } 4583 4584 /* found in pending list - don't do anything else */ 4585 if (ret == 0) 4586 break; 4587 4588 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 4589 ret = 0; 4590 break; 4591 } 4592 4593 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 4594 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 4595 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 4596 key->cipher == WLAN_CIPHER_SUITE_GCMP || 4597 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 4598 ptk_pn = rcu_dereference_protected( 4599 mvmsta->ptk_pn[keyidx], 4600 lockdep_is_held(&mvm->mutex)); 4601 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 4602 if (ptk_pn) 4603 kfree_rcu(ptk_pn, rcu_head); 4604 } 4605 4606 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 4607 if (sec_key_ver) 4608 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key); 4609 else 4610 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 4611 break; 4612 default: 4613 ret = -EINVAL; 4614 } 4615 4616 return ret; 4617 } 4618 4619 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 4620 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 4621 struct ieee80211_key_conf *key) 4622 { 4623 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4624 4625 guard(mvm)(mvm); 4626 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 4627 } 4628 4629 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 4630 struct ieee80211_vif *vif, 4631 struct ieee80211_key_conf *keyconf, 4632 struct ieee80211_sta *sta, 4633 u32 iv32, u16 *phase1key) 4634 { 4635 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4636 4637 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 4638 return; 4639 4640 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 4641 } 4642 4643 4644 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 4645 struct iwl_rx_packet *pkt, void *data) 4646 { 4647 struct iwl_mvm *mvm = 4648 container_of(notif_wait, struct iwl_mvm, notif_wait); 4649 struct iwl_hs20_roc_res *resp; 4650 int resp_len = iwl_rx_packet_payload_len(pkt); 4651 struct iwl_mvm_time_event_data *te_data = data; 4652 4653 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 4654 return true; 4655 4656 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 4657 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 4658 return true; 4659 } 4660 4661 resp = (void *)pkt->data; 4662 4663 IWL_DEBUG_TE(mvm, 4664 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 4665 resp->status, resp->event_unique_id); 4666 4667 te_data->uid = le32_to_cpu(resp->event_unique_id); 4668 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 4669 te_data->uid); 4670 4671 spin_lock_bh(&mvm->time_event_lock); 4672 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 4673 spin_unlock_bh(&mvm->time_event_lock); 4674 4675 return true; 4676 } 4677 4678 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4679 struct ieee80211_channel *channel, 4680 struct ieee80211_vif *vif, 4681 int duration) 4682 { 4683 int res; 4684 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4685 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4686 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4687 struct iwl_notification_wait wait_time_event; 4688 u32 req_dur, delay; 4689 struct iwl_hs20_roc_req aux_roc_req = { 4690 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4691 .id_and_color = 4692 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4693 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4694 }; 4695 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4696 &aux_roc_req.channel_info); 4697 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4698 4699 /* Set the channel info data */ 4700 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4701 iwl_mvm_phy_band_from_nl80211(channel->band), 4702 IWL_PHY_CHANNEL_MODE20, 4703 0); 4704 4705 /* Set the time and duration */ 4706 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4707 4708 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay); 4709 tail->duration = cpu_to_le32(req_dur); 4710 tail->apply_time_max_delay = cpu_to_le32(delay); 4711 4712 IWL_DEBUG_TE(mvm, 4713 "ROC: Requesting to remain on channel %u for %ums\n", 4714 channel->hw_value, req_dur); 4715 IWL_DEBUG_TE(mvm, 4716 "\t(requested = %ums, max_delay = %ums)\n", 4717 duration, delay); 4718 4719 /* Set the node address */ 4720 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4721 4722 lockdep_assert_held(&mvm->mutex); 4723 4724 spin_lock_bh(&mvm->time_event_lock); 4725 4726 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4727 spin_unlock_bh(&mvm->time_event_lock); 4728 return -EIO; 4729 } 4730 4731 te_data->vif = vif; 4732 te_data->duration = duration; 4733 te_data->id = HOT_SPOT_CMD; 4734 4735 spin_unlock_bh(&mvm->time_event_lock); 4736 4737 /* 4738 * Use a notification wait, which really just processes the 4739 * command response and doesn't wait for anything, in order 4740 * to be able to process the response and get the UID inside 4741 * the RX path. Using CMD_WANT_SKB doesn't work because it 4742 * stores the buffer and then wakes up this thread, by which 4743 * time another notification (that the time event started) 4744 * might already be processed unsuccessfully. 4745 */ 4746 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4747 time_event_response, 4748 ARRAY_SIZE(time_event_response), 4749 iwl_mvm_rx_aux_roc, te_data); 4750 4751 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4752 &aux_roc_req); 4753 4754 if (res) { 4755 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4756 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4757 goto out_clear_te; 4758 } 4759 4760 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4761 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4762 /* should never fail */ 4763 WARN_ON_ONCE(res); 4764 4765 if (res) { 4766 out_clear_te: 4767 spin_lock_bh(&mvm->time_event_lock); 4768 iwl_mvm_te_clear_data(mvm, te_data); 4769 spin_unlock_bh(&mvm->time_event_lock); 4770 } 4771 4772 return res; 4773 } 4774 4775 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id) 4776 { 4777 int ret = 0; 4778 4779 lockdep_assert_held(&mvm->mutex); 4780 4781 if (!fw_has_capa(&mvm->fw->ucode_capa, 4782 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4783 IWL_ERR(mvm, "hotspot not supported\n"); 4784 return -EINVAL; 4785 } 4786 4787 if (iwl_mvm_has_new_station_api(mvm->fw)) { 4788 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4789 WARN(ret, "Failed to allocate aux station"); 4790 } 4791 4792 return ret; 4793 } 4794 4795 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 4796 { 4797 int ret; 4798 4799 lockdep_assert_held(&mvm->mutex); 4800 4801 ret = iwl_mvm_binding_add_vif(mvm, vif); 4802 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4803 return ret; 4804 4805 /* The station and queue allocation must be done only after the binding 4806 * is done, as otherwise the FW might incorrectly configure its state. 4807 */ 4808 return iwl_mvm_add_p2p_bcast_sta(mvm, vif); 4809 } 4810 4811 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4812 struct ieee80211_vif *vif, 4813 struct ieee80211_channel *channel, 4814 int duration, 4815 enum ieee80211_roc_type type) 4816 { 4817 static const struct iwl_mvm_roc_ops ops = { 4818 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20, 4819 .link = iwl_mvm_roc_link, 4820 }; 4821 4822 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops); 4823 } 4824 4825 static int iwl_mvm_roc_station(struct iwl_mvm *mvm, 4826 struct ieee80211_channel *channel, 4827 struct ieee80211_vif *vif, 4828 int duration) 4829 { 4830 int ret; 4831 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD); 4832 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 4833 IWL_FW_CMD_VER_UNKNOWN); 4834 4835 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) { 4836 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration); 4837 } else if (fw_ver >= 3) { 4838 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, 4839 ROC_ACTIVITY_HOTSPOT); 4840 } else { 4841 ret = -EOPNOTSUPP; 4842 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver); 4843 } 4844 4845 return ret; 4846 } 4847 4848 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm, 4849 struct ieee80211_channel *channel, 4850 struct ieee80211_vif *vif, 4851 int duration, 4852 enum ieee80211_roc_type type) 4853 { 4854 enum iwl_roc_activity activity; 4855 int ret; 4856 4857 lockdep_assert_held(&mvm->mutex); 4858 4859 switch (type) { 4860 case IEEE80211_ROC_TYPE_NORMAL: 4861 activity = ROC_ACTIVITY_P2P_DISC; 4862 break; 4863 case IEEE80211_ROC_TYPE_MGMT_TX: 4864 activity = ROC_ACTIVITY_P2P_NEG; 4865 break; 4866 default: 4867 WARN_ONCE(1, "Got an invalid P2P ROC type\n"); 4868 return -EINVAL; 4869 } 4870 4871 ret = iwl_mvm_mld_add_aux_sta(mvm, 4872 iwl_mvm_get_lmac_id(mvm, channel->band)); 4873 if (ret) 4874 return ret; 4875 4876 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity); 4877 } 4878 4879 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm, 4880 struct ieee80211_vif *vif, 4881 struct ieee80211_channel *channel) 4882 { 4883 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4884 struct cfg80211_chan_def chandef; 4885 int i; 4886 4887 lockdep_assert_held(&mvm->mutex); 4888 4889 if (mvmvif->deflink.phy_ctxt && 4890 channel == mvmvif->deflink.phy_ctxt->channel) 4891 return 0; 4892 4893 /* Try using a PHY context that is already in use */ 4894 for (i = 0; i < NUM_PHY_CTX; i++) { 4895 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i]; 4896 4897 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt) 4898 continue; 4899 4900 if (channel == phy_ctxt->channel) { 4901 if (mvmvif->deflink.phy_ctxt) 4902 iwl_mvm_phy_ctxt_unref(mvm, 4903 mvmvif->deflink.phy_ctxt); 4904 4905 mvmvif->deflink.phy_ctxt = phy_ctxt; 4906 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt); 4907 return 0; 4908 } 4909 } 4910 4911 /* We already have a phy_ctxt, but it's not on the right channel */ 4912 if (mvmvif->deflink.phy_ctxt) 4913 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt); 4914 4915 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4916 if (!mvmvif->deflink.phy_ctxt) 4917 return -ENOSPC; 4918 4919 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4920 4921 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, 4922 &chandef, NULL, 1, 1); 4923 } 4924 4925 /* Execute the common part for MLD and non-MLD modes */ 4926 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 4927 struct ieee80211_channel *channel, int duration, 4928 enum ieee80211_roc_type type, 4929 const struct iwl_mvm_roc_ops *ops) 4930 { 4931 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4932 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm); 4933 u32 lmac_id; 4934 int ret; 4935 4936 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4937 duration, type); 4938 4939 /* 4940 * Flush the done work, just in case it's still pending, so that 4941 * the work it does can complete and we can accept new frames. 4942 */ 4943 flush_work(&mvm->roc_done_wk); 4944 4945 if (!IS_ERR_OR_NULL(bss_vif)) { 4946 ret = iwl_mvm_block_esr_sync(mvm, bss_vif, 4947 IWL_MVM_ESR_BLOCKED_ROC); 4948 if (ret) 4949 return ret; 4950 } 4951 4952 guard(mvm)(mvm); 4953 4954 switch (vif->type) { 4955 case NL80211_IFTYPE_STATION: 4956 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band); 4957 4958 /* Use aux roc framework (HS20) */ 4959 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id); 4960 if (!ret) 4961 ret = iwl_mvm_roc_station(mvm, channel, vif, duration); 4962 return ret; 4963 case NL80211_IFTYPE_P2P_DEVICE: 4964 /* handle below */ 4965 break; 4966 default: 4967 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type); 4968 return -EINVAL; 4969 } 4970 4971 if (iwl_mvm_has_p2p_over_aux(mvm)) { 4972 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type); 4973 return ret; 4974 } 4975 4976 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel); 4977 if (ret) 4978 return ret; 4979 4980 ret = ops->link(mvm, vif); 4981 if (ret) 4982 return ret; 4983 4984 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4985 } 4986 4987 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4988 struct ieee80211_vif *vif) 4989 { 4990 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4991 4992 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4993 4994 iwl_mvm_stop_roc(mvm, vif); 4995 4996 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4997 return 0; 4998 } 4999 5000 struct iwl_mvm_chanctx_usage_data { 5001 struct iwl_mvm *mvm; 5002 struct ieee80211_chanctx_conf *ctx; 5003 bool use_def; 5004 }; 5005 5006 static void iwl_mvm_chanctx_usage_iter(void *_data, u8 *mac, 5007 struct ieee80211_vif *vif) 5008 { 5009 struct iwl_mvm_chanctx_usage_data *data = _data; 5010 struct ieee80211_bss_conf *link_conf; 5011 int link_id; 5012 5013 for_each_vif_active_link(vif, link_conf, link_id) { 5014 if (rcu_access_pointer(link_conf->chanctx_conf) != data->ctx) 5015 continue; 5016 5017 if (iwl_mvm_enable_fils(data->mvm, vif, data->ctx)) 5018 data->use_def = true; 5019 5020 if (vif->type == NL80211_IFTYPE_AP && link_conf->ftmr_params) 5021 data->use_def = true; 5022 } 5023 } 5024 5025 struct cfg80211_chan_def * 5026 iwl_mvm_chanctx_def(struct iwl_mvm *mvm, struct ieee80211_chanctx_conf *ctx) 5027 { 5028 struct iwl_mvm_chanctx_usage_data data = { 5029 .mvm = mvm, 5030 .ctx = ctx, 5031 .use_def = false, 5032 }; 5033 5034 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 5035 IEEE80211_IFACE_ITER_NORMAL, 5036 iwl_mvm_chanctx_usage_iter, 5037 &data); 5038 5039 return data.use_def ? &ctx->def : &ctx->min_def; 5040 } 5041 5042 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 5043 struct ieee80211_chanctx_conf *ctx) 5044 { 5045 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5046 struct iwl_mvm_phy_ctxt *phy_ctxt; 5047 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5048 int ret; 5049 5050 lockdep_assert_held(&mvm->mutex); 5051 5052 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 5053 5054 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 5055 if (!phy_ctxt) { 5056 ret = -ENOSPC; 5057 goto out; 5058 } 5059 5060 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap, 5061 ctx->rx_chains_static, 5062 ctx->rx_chains_dynamic); 5063 if (ret) { 5064 IWL_ERR(mvm, "Failed to add PHY context\n"); 5065 goto out; 5066 } 5067 5068 *phy_ctxt_id = phy_ctxt->id; 5069 out: 5070 return ret; 5071 } 5072 5073 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 5074 struct ieee80211_chanctx_conf *ctx) 5075 { 5076 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5077 5078 guard(mvm)(mvm); 5079 return __iwl_mvm_add_chanctx(mvm, ctx); 5080 } 5081 5082 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 5083 struct ieee80211_chanctx_conf *ctx) 5084 { 5085 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5086 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5087 5088 lockdep_assert_held(&mvm->mutex); 5089 5090 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 5091 } 5092 5093 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 5094 struct ieee80211_chanctx_conf *ctx) 5095 { 5096 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5097 5098 guard(mvm)(mvm); 5099 __iwl_mvm_remove_chanctx(mvm, ctx); 5100 } 5101 5102 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 5103 struct ieee80211_chanctx_conf *ctx, u32 changed) 5104 { 5105 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5106 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5107 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5108 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx); 5109 5110 if (WARN_ONCE((phy_ctxt->ref > 1) && 5111 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 5112 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 5113 IEEE80211_CHANCTX_CHANGE_RADAR | 5114 IEEE80211_CHANCTX_CHANGE_MIN_DEF)), 5115 "Cannot change PHY. Ref=%d, changed=0x%X\n", 5116 phy_ctxt->ref, changed)) 5117 return; 5118 5119 guard(mvm)(mvm); 5120 5121 /* we are only changing the min_width, may be a noop */ 5122 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) { 5123 if (phy_ctxt->width == def->width) 5124 return; 5125 5126 /* we are just toggling between 20_NOHT and 20 */ 5127 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 5128 def->width <= NL80211_CHAN_WIDTH_20) 5129 return; 5130 } 5131 5132 iwl_mvm_bt_coex_vif_change(mvm); 5133 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap, 5134 ctx->rx_chains_static, 5135 ctx->rx_chains_dynamic); 5136 } 5137 5138 /* 5139 * This function executes the common part for MLD and non-MLD modes. 5140 * 5141 * Returns true if we're done assigning the chanctx 5142 * (either on failure or success) 5143 */ 5144 static bool 5145 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm, 5146 struct ieee80211_vif *vif, 5147 struct ieee80211_chanctx_conf *ctx, 5148 bool switching_chanctx, int *ret) 5149 { 5150 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 5151 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 5152 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5153 5154 lockdep_assert_held(&mvm->mutex); 5155 5156 mvmvif->deflink.phy_ctxt = phy_ctxt; 5157 5158 switch (vif->type) { 5159 case NL80211_IFTYPE_AP: 5160 /* only needed if we're switching chanctx (i.e. during CSA) */ 5161 if (switching_chanctx) { 5162 mvmvif->ap_ibss_active = true; 5163 break; 5164 } 5165 fallthrough; 5166 case NL80211_IFTYPE_ADHOC: 5167 /* 5168 * The AP binding flow is handled as part of the start_ap flow 5169 * (in bss_info_changed), similarly for IBSS. 5170 */ 5171 *ret = 0; 5172 return true; 5173 case NL80211_IFTYPE_STATION: 5174 break; 5175 case NL80211_IFTYPE_MONITOR: 5176 /* always disable PS when a monitor interface is active */ 5177 mvmvif->ps_disabled = true; 5178 break; 5179 default: 5180 *ret = -EINVAL; 5181 return true; 5182 } 5183 return false; 5184 } 5185 5186 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 5187 struct ieee80211_vif *vif, 5188 struct ieee80211_bss_conf *link_conf, 5189 struct ieee80211_chanctx_conf *ctx, 5190 bool switching_chanctx) 5191 { 5192 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5193 int ret; 5194 5195 if (WARN_ON(!link_conf)) 5196 return -EINVAL; 5197 5198 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx, 5199 switching_chanctx, &ret)) 5200 goto out; 5201 5202 ret = iwl_mvm_binding_add_vif(mvm, vif); 5203 if (ret) 5204 goto out; 5205 5206 /* 5207 * Power state must be updated before quotas, 5208 * otherwise fw will complain. 5209 */ 5210 iwl_mvm_power_update_mac(mvm); 5211 5212 /* Setting the quota at this stage is only required for monitor 5213 * interfaces. For the other types, the bss_info changed flow 5214 * will handle quota settings. 5215 */ 5216 if (vif->type == NL80211_IFTYPE_MONITOR) { 5217 mvmvif->monitor_active = true; 5218 ret = iwl_mvm_update_quotas(mvm, false, NULL); 5219 if (ret) 5220 goto out_remove_binding; 5221 5222 ret = iwl_mvm_add_snif_sta(mvm, vif); 5223 if (ret) 5224 goto out_remove_binding; 5225 5226 } 5227 5228 /* Handle binding during CSA */ 5229 if (vif->type == NL80211_IFTYPE_AP) { 5230 iwl_mvm_update_quotas(mvm, false, NULL); 5231 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 5232 } 5233 5234 if (vif->type == NL80211_IFTYPE_STATION) { 5235 if (!switching_chanctx) { 5236 mvmvif->csa_bcn_pending = false; 5237 goto out; 5238 } 5239 5240 mvmvif->csa_bcn_pending = true; 5241 5242 if (!fw_has_capa(&mvm->fw->ucode_capa, 5243 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5244 u32 duration = 5 * vif->bss_conf.beacon_int; 5245 5246 /* Protect the session to make sure we hear the first 5247 * beacon on the new channel. 5248 */ 5249 iwl_mvm_protect_session(mvm, vif, duration, duration, 5250 vif->bss_conf.beacon_int / 2, 5251 true); 5252 } 5253 5254 iwl_mvm_update_quotas(mvm, false, NULL); 5255 5256 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif, 5257 link_conf, 5258 false); 5259 } 5260 5261 goto out; 5262 5263 out_remove_binding: 5264 iwl_mvm_binding_remove_vif(mvm, vif); 5265 iwl_mvm_power_update_mac(mvm); 5266 out: 5267 if (ret) 5268 mvmvif->deflink.phy_ctxt = NULL; 5269 return ret; 5270 } 5271 5272 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 5273 struct ieee80211_vif *vif, 5274 struct ieee80211_bss_conf *link_conf, 5275 struct ieee80211_chanctx_conf *ctx) 5276 { 5277 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5278 5279 guard(mvm)(mvm); 5280 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5281 } 5282 5283 /* 5284 * This function executes the common part for MLD and non-MLD modes. 5285 * 5286 * Returns if chanctx unassign chanctx is done 5287 * (either on failure or success) 5288 */ 5289 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm, 5290 struct ieee80211_vif *vif, 5291 bool switching_chanctx) 5292 { 5293 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5294 5295 lockdep_assert_held(&mvm->mutex); 5296 iwl_mvm_remove_time_event(mvm, mvmvif, 5297 &mvmvif->time_event_data); 5298 5299 switch (vif->type) { 5300 case NL80211_IFTYPE_ADHOC: 5301 return true; 5302 case NL80211_IFTYPE_MONITOR: 5303 mvmvif->monitor_active = false; 5304 mvmvif->ps_disabled = false; 5305 break; 5306 case NL80211_IFTYPE_AP: 5307 /* This part is triggered only during CSA */ 5308 if (!switching_chanctx || !mvmvif->ap_ibss_active) 5309 return true; 5310 5311 mvmvif->csa_countdown = false; 5312 5313 /* Set CS bit on all the stations */ 5314 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 5315 5316 /* Save blocked iface, the timeout is set on the next beacon */ 5317 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 5318 5319 mvmvif->ap_ibss_active = false; 5320 break; 5321 default: 5322 break; 5323 } 5324 return false; 5325 } 5326 5327 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 5328 struct ieee80211_vif *vif, 5329 struct ieee80211_bss_conf *link_conf, 5330 struct ieee80211_chanctx_conf *ctx, 5331 bool switching_chanctx) 5332 { 5333 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5334 struct ieee80211_vif *disabled_vif = NULL; 5335 5336 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx)) 5337 goto out; 5338 5339 if (vif->type == NL80211_IFTYPE_MONITOR) 5340 iwl_mvm_rm_snif_sta(mvm, vif); 5341 5342 5343 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) { 5344 disabled_vif = vif; 5345 if (!fw_has_capa(&mvm->fw->ucode_capa, 5346 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 5347 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 5348 } 5349 5350 iwl_mvm_update_quotas(mvm, false, disabled_vif); 5351 iwl_mvm_binding_remove_vif(mvm, vif); 5352 5353 out: 5354 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 5355 switching_chanctx) 5356 return; 5357 mvmvif->deflink.phy_ctxt = NULL; 5358 iwl_mvm_power_update_mac(mvm); 5359 } 5360 5361 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 5362 struct ieee80211_vif *vif, 5363 struct ieee80211_bss_conf *link_conf, 5364 struct ieee80211_chanctx_conf *ctx) 5365 { 5366 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5367 5368 guard(mvm)(mvm); 5369 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false); 5370 } 5371 5372 static int 5373 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 5374 struct ieee80211_vif_chanctx_switch *vifs, 5375 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5376 { 5377 int ret; 5378 5379 guard(mvm)(mvm); 5380 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5381 vifs[0].old_ctx, true); 5382 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 5383 5384 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 5385 if (ret) { 5386 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 5387 goto out_reassign; 5388 } 5389 5390 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5391 vifs[0].new_ctx, true); 5392 if (ret) { 5393 IWL_ERR(mvm, 5394 "failed to assign new_ctx during channel switch\n"); 5395 goto out_remove; 5396 } 5397 5398 /* we don't support TDLS during DCM - can be caused by channel switch */ 5399 if (iwl_mvm_phy_ctx_count(mvm) > 1) 5400 iwl_mvm_teardown_tdls_peers(mvm); 5401 5402 return 0; 5403 5404 out_remove: 5405 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 5406 5407 out_reassign: 5408 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 5409 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 5410 goto out_restart; 5411 } 5412 5413 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5414 vifs[0].old_ctx, true)) { 5415 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5416 goto out_restart; 5417 } 5418 5419 return ret; 5420 5421 out_restart: 5422 /* things keep failing, better restart the hw */ 5423 iwl_force_nmi(mvm->trans); 5424 return ret; 5425 } 5426 5427 static int 5428 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 5429 struct ieee80211_vif_chanctx_switch *vifs, 5430 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5431 { 5432 int ret; 5433 5434 guard(mvm)(mvm); 5435 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5436 vifs[0].old_ctx, true); 5437 5438 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5439 vifs[0].new_ctx, true); 5440 if (ret) { 5441 IWL_ERR(mvm, 5442 "failed to assign new_ctx during channel switch\n"); 5443 goto out_reassign; 5444 } 5445 5446 return 0; 5447 5448 out_reassign: 5449 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf, 5450 vifs[0].old_ctx, true)) { 5451 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 5452 goto out_restart; 5453 } 5454 5455 return ret; 5456 5457 out_restart: 5458 /* things keep failing, better restart the hw */ 5459 iwl_force_nmi(mvm->trans); 5460 return ret; 5461 } 5462 5463 /* Execute the common part for both MLD and non-MLD modes */ 5464 int 5465 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw, 5466 struct ieee80211_vif_chanctx_switch *vifs, 5467 int n_vifs, 5468 enum ieee80211_chanctx_switch_mode mode, 5469 const struct iwl_mvm_switch_vif_chanctx_ops *ops) 5470 { 5471 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5472 int ret; 5473 5474 /* we only support a single-vif right now */ 5475 if (n_vifs > 1) 5476 return -EOPNOTSUPP; 5477 5478 switch (mode) { 5479 case CHANCTX_SWMODE_SWAP_CONTEXTS: 5480 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops); 5481 break; 5482 case CHANCTX_SWMODE_REASSIGN_VIF: 5483 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops); 5484 break; 5485 default: 5486 ret = -EOPNOTSUPP; 5487 break; 5488 } 5489 5490 return ret; 5491 } 5492 5493 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 5494 struct ieee80211_vif_chanctx_switch *vifs, 5495 int n_vifs, 5496 enum ieee80211_chanctx_switch_mode mode) 5497 { 5498 static const struct iwl_mvm_switch_vif_chanctx_ops ops = { 5499 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx, 5500 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx, 5501 }; 5502 5503 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops); 5504 } 5505 5506 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 5507 { 5508 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5509 5510 return mvm->ibss_manager; 5511 } 5512 5513 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 5514 bool set) 5515 { 5516 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5517 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 5518 5519 if (!mvm_sta || !mvm_sta->vif) { 5520 IWL_ERR(mvm, "Station is not associated to a vif\n"); 5521 return -EINVAL; 5522 } 5523 5524 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif, 5525 &mvm_sta->vif->bss_conf); 5526 } 5527 5528 #ifdef CONFIG_NL80211_TESTMODE 5529 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 5530 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 5531 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 5532 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 5533 }; 5534 5535 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 5536 struct ieee80211_vif *vif, 5537 void *data, int len) 5538 { 5539 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 5540 int err; 5541 u32 noa_duration; 5542 5543 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 5544 iwl_mvm_tm_policy, NULL); 5545 if (err) 5546 return err; 5547 5548 if (!tb[IWL_MVM_TM_ATTR_CMD]) 5549 return -EINVAL; 5550 5551 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 5552 case IWL_MVM_TM_CMD_SET_NOA: 5553 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 5554 !vif->bss_conf.enable_beacon || 5555 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 5556 return -EINVAL; 5557 5558 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 5559 if (noa_duration >= vif->bss_conf.beacon_int) 5560 return -EINVAL; 5561 5562 mvm->noa_duration = noa_duration; 5563 mvm->noa_vif = vif; 5564 5565 return iwl_mvm_update_quotas(mvm, true, NULL); 5566 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 5567 /* must be associated client vif - ignore authorized */ 5568 if (!vif || vif->type != NL80211_IFTYPE_STATION || 5569 !vif->cfg.assoc || !vif->bss_conf.dtim_period || 5570 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 5571 return -EINVAL; 5572 5573 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 5574 return iwl_mvm_enable_beacon_filter(mvm, vif); 5575 return iwl_mvm_disable_beacon_filter(mvm, vif); 5576 } 5577 5578 return -EOPNOTSUPP; 5579 } 5580 5581 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 5582 struct ieee80211_vif *vif, 5583 void *data, int len) 5584 { 5585 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5586 5587 guard(mvm)(mvm); 5588 return __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 5589 } 5590 #endif 5591 5592 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5593 struct ieee80211_channel_switch *chsw) 5594 { 5595 /* By implementing this operation, we prevent mac80211 from 5596 * starting its own channel switch timer, so that we can call 5597 * ieee80211_chswitch_done() ourselves at the right time 5598 * (which is when the absence time event starts). 5599 */ 5600 5601 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 5602 "dummy channel switch op\n"); 5603 } 5604 5605 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 5606 struct ieee80211_vif *vif, 5607 struct ieee80211_channel_switch *chsw) 5608 { 5609 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5610 struct iwl_chan_switch_te_cmd cmd = { 5611 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5612 mvmvif->color)), 5613 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 5614 .tsf = cpu_to_le32(chsw->timestamp), 5615 .cs_count = chsw->count, 5616 .cs_mode = chsw->block_tx, 5617 }; 5618 5619 lockdep_assert_held(&mvm->mutex); 5620 5621 if (chsw->delay) 5622 cmd.cs_delayed_bcn_count = 5623 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 5624 5625 return iwl_mvm_send_cmd_pdu(mvm, 5626 WIDE_ID(MAC_CONF_GROUP, 5627 CHANNEL_SWITCH_TIME_EVENT_CMD), 5628 0, sizeof(cmd), &cmd); 5629 } 5630 5631 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 5632 struct ieee80211_vif *vif, 5633 struct ieee80211_channel_switch *chsw) 5634 { 5635 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5636 u32 apply_time; 5637 5638 /* Schedule the time event to a bit before beacon 1, 5639 * to make sure we're in the new channel when the 5640 * GO/AP arrives. In case count <= 1 immediately schedule the 5641 * TE (this might result with some packet loss or connection 5642 * loss). 5643 */ 5644 if (chsw->count <= 1) 5645 apply_time = 0; 5646 else 5647 apply_time = chsw->device_timestamp + 5648 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 5649 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 5650 5651 if (chsw->block_tx) 5652 iwl_mvm_csa_client_absent(mvm, vif); 5653 5654 if (mvmvif->bf_enabled) { 5655 int ret = iwl_mvm_disable_beacon_filter(mvm, vif); 5656 5657 if (ret) 5658 return ret; 5659 } 5660 5661 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 5662 apply_time); 5663 5664 return 0; 5665 } 5666 5667 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta) 5668 { 5669 int i; 5670 5671 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) { 5672 struct iwl_mvm_txq *mvmtxq = 5673 iwl_mvm_txq_from_mac80211(sta->txq[i]); 5674 5675 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5676 } 5677 } 5678 5679 #define IWL_MAX_CSA_BLOCK_TX 1500 5680 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm, 5681 struct ieee80211_vif *vif, 5682 struct ieee80211_channel_switch *chsw) 5683 { 5684 struct ieee80211_vif *csa_vif; 5685 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5686 struct iwl_mvm_txq *mvmtxq; 5687 int ret; 5688 5689 lockdep_assert_held(&mvm->mutex); 5690 5691 mvmvif->csa_failed = false; 5692 mvmvif->csa_blocks_tx = false; 5693 5694 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 5695 chsw->chandef.center_freq1); 5696 5697 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 5698 ieee80211_vif_to_wdev(vif), 5699 FW_DBG_TRIGGER_CHANNEL_SWITCH); 5700 5701 switch (vif->type) { 5702 case NL80211_IFTYPE_AP: 5703 csa_vif = 5704 rcu_dereference_protected(mvm->csa_vif, 5705 lockdep_is_held(&mvm->mutex)); 5706 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active, 5707 "Another CSA is already in progress")) 5708 return -EBUSY; 5709 5710 /* we still didn't unblock tx. prevent new CS meanwhile */ 5711 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 5712 lockdep_is_held(&mvm->mutex))) 5713 return -EBUSY; 5714 5715 rcu_assign_pointer(mvm->csa_vif, vif); 5716 5717 if (WARN_ONCE(mvmvif->csa_countdown, 5718 "Previous CSA countdown didn't complete")) 5719 return -EBUSY; 5720 5721 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 5722 5723 if (!chsw->block_tx) 5724 break; 5725 /* don't need blocking in driver otherwise - mac80211 will do */ 5726 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA)) 5727 break; 5728 5729 mvmvif->csa_blocks_tx = true; 5730 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq); 5731 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state); 5732 ieee80211_iterate_stations_atomic(mvm->hw, 5733 iwl_mvm_csa_block_txqs, 5734 NULL); 5735 break; 5736 case NL80211_IFTYPE_STATION: 5737 mvmvif->csa_blocks_tx = chsw->block_tx; 5738 5739 /* 5740 * In the new flow FW is in charge of timing the switch so there 5741 * is no need for all of this 5742 */ 5743 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5744 CHANNEL_SWITCH_ERROR_NOTIF, 5745 0)) 5746 break; 5747 5748 /* 5749 * We haven't configured the firmware to be associated yet since 5750 * we don't know the dtim period. In this case, the firmware can't 5751 * track the beacons. 5752 */ 5753 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) 5754 return -EBUSY; 5755 5756 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX && 5757 hweight16(vif->valid_links) <= 1) 5758 schedule_delayed_work(&mvmvif->csa_work, 0); 5759 5760 if (chsw->block_tx) { 5761 /* 5762 * In case of undetermined / long time with immediate 5763 * quiet monitor status to gracefully disconnect 5764 */ 5765 if (!chsw->count || 5766 chsw->count * vif->bss_conf.beacon_int > 5767 IWL_MAX_CSA_BLOCK_TX) 5768 schedule_delayed_work(&mvmvif->csa_work, 5769 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 5770 } 5771 5772 if (!fw_has_capa(&mvm->fw->ucode_capa, 5773 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 5774 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 5775 if (ret) 5776 return ret; 5777 } else { 5778 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5779 } 5780 5781 mvmvif->csa_count = chsw->count; 5782 mvmvif->csa_misbehave = false; 5783 break; 5784 default: 5785 break; 5786 } 5787 5788 mvmvif->ps_disabled = true; 5789 5790 ret = iwl_mvm_power_update_ps(mvm); 5791 if (ret) 5792 return ret; 5793 5794 /* we won't be on this channel any longer */ 5795 iwl_mvm_teardown_tdls_peers(mvm); 5796 5797 return ret; 5798 } 5799 5800 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw, 5801 struct ieee80211_vif *vif, 5802 struct ieee80211_channel_switch *chsw) 5803 { 5804 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5805 5806 guard(mvm)(mvm); 5807 return iwl_mvm_pre_channel_switch(mvm, vif, chsw); 5808 } 5809 5810 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5811 struct ieee80211_vif *vif, 5812 struct ieee80211_channel_switch *chsw) 5813 { 5814 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5815 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5816 struct iwl_chan_switch_te_cmd cmd = { 5817 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5818 mvmvif->color)), 5819 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5820 .tsf = cpu_to_le32(chsw->timestamp), 5821 .cs_count = chsw->count, 5822 .cs_mode = chsw->block_tx, 5823 }; 5824 5825 /* 5826 * In the new flow FW is in charge of timing the switch so there is no 5827 * need for all of this 5828 */ 5829 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5830 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5831 return; 5832 5833 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5834 return; 5835 5836 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5837 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5838 5839 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5840 if (mvmvif->csa_misbehave) { 5841 struct ieee80211_bss_conf *link_conf; 5842 5843 /* Second time, give up on this AP*/ 5844 5845 link_conf = wiphy_dereference(hw->wiphy, 5846 vif->link_conf[chsw->link_id]); 5847 if (WARN_ON(!link_conf)) 5848 return; 5849 5850 iwl_mvm_abort_channel_switch(hw, vif, link_conf); 5851 ieee80211_chswitch_done(vif, false, 0); 5852 mvmvif->csa_misbehave = false; 5853 return; 5854 } 5855 mvmvif->csa_misbehave = true; 5856 } 5857 mvmvif->csa_count = chsw->count; 5858 5859 guard(mvm)(mvm); 5860 if (mvmvif->csa_failed) 5861 return; 5862 5863 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5864 WIDE_ID(MAC_CONF_GROUP, 5865 CHANNEL_SWITCH_TIME_EVENT_CMD), 5866 0, sizeof(cmd), &cmd)); 5867 } 5868 5869 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5870 { 5871 int i; 5872 5873 if (!iwl_mvm_has_new_tx_api(mvm)) { 5874 /* we can't ask the firmware anything if it is dead */ 5875 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5876 &mvm->status)) 5877 return; 5878 if (drop) { 5879 guard(mvm)(mvm); 5880 iwl_mvm_flush_tx_path(mvm, 5881 iwl_mvm_flushable_queues(mvm) & queues); 5882 } else { 5883 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5884 } 5885 return; 5886 } 5887 5888 guard(mvm)(mvm); 5889 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5890 struct ieee80211_sta *sta; 5891 5892 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5893 lockdep_is_held(&mvm->mutex)); 5894 if (IS_ERR_OR_NULL(sta)) 5895 continue; 5896 5897 if (drop) 5898 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5899 else 5900 iwl_mvm_wait_sta_queues_empty(mvm, 5901 iwl_mvm_sta_from_mac80211(sta)); 5902 } 5903 } 5904 5905 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5906 u32 queues, bool drop) 5907 { 5908 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5909 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5910 struct iwl_mvm_sta *mvmsta; 5911 struct ieee80211_sta *sta; 5912 bool ap_sta_done = false; 5913 int i; 5914 u32 msk = 0; 5915 5916 if (!vif) { 5917 iwl_mvm_flush_no_vif(mvm, queues, drop); 5918 return; 5919 } 5920 5921 if (!drop && hweight16(vif->active_links) <= 1) { 5922 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 5923 struct ieee80211_bss_conf *link_conf; 5924 5925 link_conf = wiphy_dereference(hw->wiphy, 5926 vif->link_conf[link_id]); 5927 if (WARN_ON(!link_conf)) 5928 return; 5929 if (link_conf->csa_active && mvmvif->csa_blocks_tx) 5930 drop = true; 5931 } 5932 5933 /* Make sure we're done with the deferred traffic before flushing */ 5934 flush_work(&mvm->add_stream_wk); 5935 5936 mutex_lock(&mvm->mutex); 5937 5938 /* flush the AP-station and all TDLS peers */ 5939 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5940 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5941 lockdep_is_held(&mvm->mutex)); 5942 if (IS_ERR_OR_NULL(sta)) 5943 continue; 5944 5945 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5946 if (mvmsta->vif != vif) 5947 continue; 5948 5949 if (sta == mvmvif->ap_sta) { 5950 if (ap_sta_done) 5951 continue; 5952 ap_sta_done = true; 5953 } 5954 5955 if (drop) { 5956 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, 5957 mvmsta->tfd_queue_msk)) 5958 IWL_ERR(mvm, "flush request fail\n"); 5959 } else { 5960 if (iwl_mvm_has_new_tx_api(mvm)) 5961 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5962 else /* only used for !iwl_mvm_has_new_tx_api() below */ 5963 msk |= mvmsta->tfd_queue_msk; 5964 } 5965 } 5966 5967 mutex_unlock(&mvm->mutex); 5968 5969 /* this can take a while, and we may need/want other operations 5970 * to succeed while doing this, so do it without the mutex held 5971 * If the firmware is dead, this can't work... 5972 */ 5973 if (!drop && !iwl_mvm_has_new_tx_api(mvm) && 5974 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 5975 &mvm->status)) 5976 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5977 } 5978 5979 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 5980 struct ieee80211_sta *sta) 5981 { 5982 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5983 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5984 struct iwl_mvm_link_sta *mvm_link_sta; 5985 struct ieee80211_link_sta *link_sta; 5986 int link_id; 5987 5988 guard(mvm)(mvm); 5989 for_each_sta_active_link(vif, sta, link_sta, link_id) { 5990 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], 5991 lockdep_is_held(&mvm->mutex)); 5992 if (!mvm_link_sta) 5993 continue; 5994 5995 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, 5996 mvmsta->tfd_queue_msk)) 5997 IWL_ERR(mvm, "flush request fail\n"); 5998 } 5999 } 6000 6001 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx, 6002 struct survey_info *survey) 6003 { 6004 int chan_idx; 6005 enum nl80211_band band; 6006 int ret; 6007 6008 mutex_lock(&mvm->mutex); 6009 6010 if (!mvm->acs_survey) { 6011 ret = -ENOENT; 6012 goto out; 6013 } 6014 6015 /* Find and return the next entry that has a non-zero active time */ 6016 for (band = 0; band < NUM_NL80211_BANDS; band++) { 6017 struct ieee80211_supported_band *sband = 6018 mvm->hw->wiphy->bands[band]; 6019 6020 if (!sband) 6021 continue; 6022 6023 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) { 6024 struct iwl_mvm_acs_survey_channel *info = 6025 &mvm->acs_survey->bands[band][chan_idx]; 6026 6027 if (!info->time) 6028 continue; 6029 6030 /* Found (the next) channel to report */ 6031 survey->channel = &sband->channels[chan_idx]; 6032 survey->filled = SURVEY_INFO_TIME | 6033 SURVEY_INFO_TIME_BUSY | 6034 SURVEY_INFO_TIME_RX | 6035 SURVEY_INFO_TIME_TX; 6036 survey->time = info->time; 6037 survey->time_busy = info->time_busy; 6038 survey->time_rx = info->time_rx; 6039 survey->time_tx = info->time_tx; 6040 survey->noise = info->noise; 6041 if (survey->noise < 0) 6042 survey->filled |= SURVEY_INFO_NOISE_DBM; 6043 6044 /* Clear time so that channel is only reported once */ 6045 info->time = 0; 6046 6047 ret = 0; 6048 goto out; 6049 } 6050 } 6051 6052 ret = -ENOENT; 6053 6054 out: 6055 mutex_unlock(&mvm->mutex); 6056 6057 return ret; 6058 } 6059 6060 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 6061 struct survey_info *survey) 6062 { 6063 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6064 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 6065 WIDE_ID(SYSTEM_GROUP, 6066 SYSTEM_STATISTICS_CMD), 6067 IWL_FW_CMD_VER_UNKNOWN); 6068 6069 memset(survey, 0, sizeof(*survey)); 6070 6071 if (!fw_has_capa(&mvm->fw->ucode_capa, 6072 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 6073 return -ENOENT; 6074 6075 /* 6076 * Return the beacon stats at index zero and pass on following indices 6077 * to the function returning the full survey, most likely for ACS 6078 * (Automatic Channel Selection). 6079 */ 6080 if (idx > 0) 6081 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey); 6082 6083 guard(mvm)(mvm); 6084 6085 if (iwl_mvm_firmware_running(mvm)) { 6086 int ret = iwl_mvm_request_statistics(mvm, false); 6087 6088 if (ret) 6089 return ret; 6090 } 6091 6092 survey->filled = SURVEY_INFO_TIME_RX | 6093 SURVEY_INFO_TIME_TX; 6094 6095 survey->time_rx = mvm->accu_radio_stats.rx_time + 6096 mvm->radio_stats.rx_time; 6097 do_div(survey->time_rx, USEC_PER_MSEC); 6098 6099 survey->time_tx = mvm->accu_radio_stats.tx_time + 6100 mvm->radio_stats.tx_time; 6101 do_div(survey->time_tx, USEC_PER_MSEC); 6102 6103 /* the new fw api doesn't support the following fields */ 6104 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 6105 return 0; 6106 6107 survey->filled |= SURVEY_INFO_TIME | 6108 SURVEY_INFO_TIME_SCAN; 6109 survey->time = mvm->accu_radio_stats.on_time_rf + 6110 mvm->radio_stats.on_time_rf; 6111 do_div(survey->time, USEC_PER_MSEC); 6112 6113 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 6114 mvm->radio_stats.on_time_scan; 6115 do_div(survey->time_scan, USEC_PER_MSEC); 6116 6117 return 0; 6118 } 6119 6120 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 6121 { 6122 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 6123 u32 gi_ltf; 6124 6125 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 6126 case RATE_MCS_CHAN_WIDTH_20: 6127 rinfo->bw = RATE_INFO_BW_20; 6128 break; 6129 case RATE_MCS_CHAN_WIDTH_40: 6130 rinfo->bw = RATE_INFO_BW_40; 6131 break; 6132 case RATE_MCS_CHAN_WIDTH_80: 6133 rinfo->bw = RATE_INFO_BW_80; 6134 break; 6135 case RATE_MCS_CHAN_WIDTH_160: 6136 rinfo->bw = RATE_INFO_BW_160; 6137 break; 6138 case RATE_MCS_CHAN_WIDTH_320: 6139 rinfo->bw = RATE_INFO_BW_320; 6140 break; 6141 } 6142 6143 if (format == RATE_MCS_CCK_MSK || 6144 format == RATE_MCS_LEGACY_OFDM_MSK) { 6145 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 6146 6147 /* add the offset needed to get to the legacy ofdm indices */ 6148 if (format == RATE_MCS_LEGACY_OFDM_MSK) 6149 rate += IWL_FIRST_OFDM_RATE; 6150 6151 switch (rate) { 6152 case IWL_RATE_1M_INDEX: 6153 rinfo->legacy = 10; 6154 break; 6155 case IWL_RATE_2M_INDEX: 6156 rinfo->legacy = 20; 6157 break; 6158 case IWL_RATE_5M_INDEX: 6159 rinfo->legacy = 55; 6160 break; 6161 case IWL_RATE_11M_INDEX: 6162 rinfo->legacy = 110; 6163 break; 6164 case IWL_RATE_6M_INDEX: 6165 rinfo->legacy = 60; 6166 break; 6167 case IWL_RATE_9M_INDEX: 6168 rinfo->legacy = 90; 6169 break; 6170 case IWL_RATE_12M_INDEX: 6171 rinfo->legacy = 120; 6172 break; 6173 case IWL_RATE_18M_INDEX: 6174 rinfo->legacy = 180; 6175 break; 6176 case IWL_RATE_24M_INDEX: 6177 rinfo->legacy = 240; 6178 break; 6179 case IWL_RATE_36M_INDEX: 6180 rinfo->legacy = 360; 6181 break; 6182 case IWL_RATE_48M_INDEX: 6183 rinfo->legacy = 480; 6184 break; 6185 case IWL_RATE_54M_INDEX: 6186 rinfo->legacy = 540; 6187 } 6188 return; 6189 } 6190 6191 rinfo->nss = u32_get_bits(rate_n_flags, 6192 RATE_MCS_NSS_MSK) + 1; 6193 rinfo->mcs = format == RATE_MCS_HT_MSK ? 6194 RATE_HT_MCS_INDEX(rate_n_flags) : 6195 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 6196 6197 if (rate_n_flags & RATE_MCS_SGI_MSK) 6198 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 6199 6200 switch (format) { 6201 case RATE_MCS_EHT_MSK: 6202 /* TODO: GI/LTF/RU. How does the firmware encode them? */ 6203 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS; 6204 break; 6205 case RATE_MCS_HE_MSK: 6206 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK); 6207 6208 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 6209 6210 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 6211 rinfo->bw = RATE_INFO_BW_HE_RU; 6212 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 6213 } 6214 6215 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 6216 case RATE_MCS_HE_TYPE_SU: 6217 case RATE_MCS_HE_TYPE_EXT_SU: 6218 if (gi_ltf == 0 || gi_ltf == 1) 6219 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6220 else if (gi_ltf == 2) 6221 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6222 else if (gi_ltf == 3) 6223 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6224 else 6225 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6226 break; 6227 case RATE_MCS_HE_TYPE_MU: 6228 if (gi_ltf == 0 || gi_ltf == 1) 6229 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 6230 else if (gi_ltf == 2) 6231 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6232 else 6233 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6234 break; 6235 case RATE_MCS_HE_TYPE_TRIG: 6236 if (gi_ltf == 0 || gi_ltf == 1) 6237 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 6238 else 6239 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 6240 break; 6241 } 6242 6243 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 6244 rinfo->he_dcm = 1; 6245 break; 6246 case RATE_MCS_HT_MSK: 6247 rinfo->flags |= RATE_INFO_FLAGS_MCS; 6248 break; 6249 case RATE_MCS_VHT_MSK: 6250 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 6251 break; 6252 } 6253 } 6254 6255 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 6256 struct ieee80211_vif *vif, 6257 struct ieee80211_sta *sta, 6258 struct station_info *sinfo) 6259 { 6260 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6261 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6262 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 6263 int i; 6264 6265 if (mvmsta->deflink.avg_energy) { 6266 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy; 6267 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 6268 } 6269 6270 if (iwl_mvm_has_tlc_offload(mvm)) { 6271 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw; 6272 6273 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 6274 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 6275 } 6276 6277 /* if beacon filtering isn't on mac80211 does it anyway */ 6278 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 6279 return; 6280 6281 if (!vif->cfg.assoc) 6282 return; 6283 6284 guard(mvm)(mvm); 6285 6286 if (sta != mvmvif->ap_sta) 6287 return; 6288 6289 if (iwl_mvm_request_statistics(mvm, false)) 6290 return; 6291 6292 sinfo->rx_beacon = 0; 6293 for_each_mvm_vif_valid_link(mvmvif, i) 6294 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons + 6295 mvmvif->link[i]->beacon_stats.accu_num_beacons; 6296 6297 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 6298 if (mvmvif->deflink.beacon_stats.avg_signal) { 6299 /* firmware only reports a value after RXing a few beacons */ 6300 sinfo->rx_beacon_signal_avg = 6301 mvmvif->deflink.beacon_stats.avg_signal; 6302 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 6303 } 6304 } 6305 6306 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 6307 struct ieee80211_vif *vif, 6308 const struct ieee80211_mlme_event *mlme) 6309 { 6310 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 6311 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 6312 iwl_dbg_tlv_time_point(&mvm->fwrt, 6313 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 6314 NULL); 6315 return; 6316 } 6317 6318 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 6319 iwl_dbg_tlv_time_point(&mvm->fwrt, 6320 IWL_FW_INI_TIME_POINT_DEASSOC, 6321 NULL); 6322 return; 6323 } 6324 } 6325 6326 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 6327 struct ieee80211_vif *vif, 6328 const struct ieee80211_event *event) 6329 { 6330 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 6331 do { \ 6332 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 6333 break; \ 6334 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 6335 } while (0) 6336 6337 struct iwl_fw_dbg_trigger_tlv *trig; 6338 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 6339 6340 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 6341 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 6342 return; 6343 } 6344 6345 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6346 FW_DBG_TRIGGER_MLME); 6347 if (!trig) 6348 return; 6349 6350 trig_mlme = (void *)trig->data; 6351 6352 if (event->u.mlme.data == ASSOC_EVENT) { 6353 if (event->u.mlme.status == MLME_DENIED) 6354 CHECK_MLME_TRIGGER(stop_assoc_denied, 6355 "DENIED ASSOC: reason %d", 6356 event->u.mlme.reason); 6357 else if (event->u.mlme.status == MLME_TIMEOUT) 6358 CHECK_MLME_TRIGGER(stop_assoc_timeout, 6359 "ASSOC TIMEOUT"); 6360 } else if (event->u.mlme.data == AUTH_EVENT) { 6361 if (event->u.mlme.status == MLME_DENIED) 6362 CHECK_MLME_TRIGGER(stop_auth_denied, 6363 "DENIED AUTH: reason %d", 6364 event->u.mlme.reason); 6365 else if (event->u.mlme.status == MLME_TIMEOUT) 6366 CHECK_MLME_TRIGGER(stop_auth_timeout, 6367 "AUTH TIMEOUT"); 6368 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 6369 CHECK_MLME_TRIGGER(stop_rx_deauth, 6370 "DEAUTH RX %d", event->u.mlme.reason); 6371 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 6372 CHECK_MLME_TRIGGER(stop_tx_deauth, 6373 "DEAUTH TX %d", event->u.mlme.reason); 6374 } 6375 #undef CHECK_MLME_TRIGGER 6376 } 6377 6378 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 6379 struct ieee80211_vif *vif, 6380 const struct ieee80211_event *event) 6381 { 6382 struct iwl_fw_dbg_trigger_tlv *trig; 6383 struct iwl_fw_dbg_trigger_ba *ba_trig; 6384 6385 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 6386 FW_DBG_TRIGGER_BA); 6387 if (!trig) 6388 return; 6389 6390 ba_trig = (void *)trig->data; 6391 6392 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 6393 return; 6394 6395 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 6396 "BAR received from %pM, tid %d, ssn %d", 6397 event->u.ba.sta->addr, event->u.ba.tid, 6398 event->u.ba.ssn); 6399 } 6400 6401 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 6402 struct ieee80211_vif *vif, 6403 const struct ieee80211_event *event) 6404 { 6405 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6406 6407 switch (event->type) { 6408 case MLME_EVENT: 6409 iwl_mvm_event_mlme_callback(mvm, vif, event); 6410 break; 6411 case BAR_RX_EVENT: 6412 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 6413 break; 6414 case BA_FRAME_TIMEOUT: 6415 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 6416 event->u.ba.tid); 6417 break; 6418 default: 6419 break; 6420 } 6421 } 6422 6423 #define SYNC_RX_QUEUE_TIMEOUT (HZ) 6424 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 6425 enum iwl_mvm_rxq_notif_type type, 6426 bool sync, 6427 const void *data, u32 size) 6428 { 6429 struct { 6430 struct iwl_rxq_sync_cmd cmd; 6431 struct iwl_mvm_internal_rxq_notif notif; 6432 } __packed cmd = { 6433 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 6434 .cmd.count = 6435 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 6436 size), 6437 .notif.type = type, 6438 .notif.sync = sync, 6439 }; 6440 struct iwl_host_cmd hcmd = { 6441 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 6442 .data[0] = &cmd, 6443 .len[0] = sizeof(cmd), 6444 .data[1] = data, 6445 .len[1] = size, 6446 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC), 6447 }; 6448 int ret; 6449 6450 /* size must be a multiple of DWORD */ 6451 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 6452 return; 6453 6454 if (!iwl_mvm_has_new_rx_api(mvm)) 6455 return; 6456 6457 if (sync) { 6458 cmd.notif.cookie = mvm->queue_sync_cookie; 6459 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 6460 } 6461 6462 ret = iwl_mvm_send_cmd(mvm, &hcmd); 6463 if (ret) { 6464 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 6465 goto out; 6466 } 6467 6468 if (sync) { 6469 lockdep_assert_held(&mvm->mutex); 6470 ret = wait_event_timeout(mvm->rx_sync_waitq, 6471 READ_ONCE(mvm->queue_sync_state) == 0, 6472 SYNC_RX_QUEUE_TIMEOUT); 6473 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n", 6474 mvm->queue_sync_state, 6475 mvm->queue_sync_cookie); 6476 } 6477 6478 out: 6479 if (sync) { 6480 mvm->queue_sync_state = 0; 6481 mvm->queue_sync_cookie++; 6482 } 6483 } 6484 6485 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 6486 { 6487 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6488 6489 guard(mvm)(mvm); 6490 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 6491 } 6492 6493 int 6494 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 6495 struct ieee80211_vif *vif, 6496 struct cfg80211_ftm_responder_stats *stats) 6497 { 6498 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6499 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 6500 6501 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 6502 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 6503 return -EINVAL; 6504 6505 mutex_lock(&mvm->mutex); 6506 *stats = mvm->ftm_resp_stats; 6507 mutex_unlock(&mvm->mutex); 6508 6509 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 6510 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 6511 BIT(NL80211_FTM_STATS_FAILED_NUM) | 6512 BIT(NL80211_FTM_STATS_ASAP_NUM) | 6513 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 6514 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 6515 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 6516 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 6517 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 6518 6519 return 0; 6520 } 6521 6522 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6523 struct cfg80211_pmsr_request *request) 6524 { 6525 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6526 6527 guard(mvm)(mvm); 6528 return iwl_mvm_ftm_start(mvm, vif, request); 6529 } 6530 6531 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 6532 struct cfg80211_pmsr_request *request) 6533 { 6534 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6535 6536 guard(mvm)(mvm); 6537 iwl_mvm_ftm_abort(mvm, request); 6538 } 6539 6540 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 6541 { 6542 u8 protocol = ip_hdr(skb)->protocol; 6543 6544 if (!IS_ENABLED(CONFIG_INET)) 6545 return false; 6546 6547 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 6548 } 6549 6550 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 6551 struct sk_buff *head, 6552 struct sk_buff *skb) 6553 { 6554 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6555 6556 /* For now don't aggregate IPv6 in AMSDU */ 6557 if (skb->protocol != htons(ETH_P_IP)) 6558 return false; 6559 6560 if (!iwl_mvm_is_csum_supported(mvm)) 6561 return true; 6562 6563 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 6564 } 6565 6566 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw, 6567 struct ieee80211_vif *vif, 6568 struct cfg80211_set_hw_timestamp *hwts) 6569 { 6570 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 6571 u32 protocols = 0; 6572 6573 /* HW timestamping is only supported for a specific station */ 6574 if (!hwts->macaddr) 6575 return -EOPNOTSUPP; 6576 6577 if (hwts->enable) 6578 protocols = 6579 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM; 6580 6581 guard(mvm)(mvm); 6582 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols); 6583 } 6584 6585 const struct ieee80211_ops iwl_mvm_hw_ops = { 6586 .tx = iwl_mvm_mac_tx, 6587 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 6588 .ampdu_action = iwl_mvm_mac_ampdu_action, 6589 .get_antenna = iwl_mvm_op_get_antenna, 6590 .set_antenna = iwl_mvm_op_set_antenna, 6591 .start = iwl_mvm_mac_start, 6592 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 6593 .stop = iwl_mvm_mac_stop, 6594 .add_interface = iwl_mvm_mac_add_interface, 6595 .remove_interface = iwl_mvm_mac_remove_interface, 6596 .config = iwl_mvm_mac_config, 6597 .prepare_multicast = iwl_mvm_prepare_multicast, 6598 .configure_filter = iwl_mvm_configure_filter, 6599 .config_iface_filter = iwl_mvm_config_iface_filter, 6600 .bss_info_changed = iwl_mvm_bss_info_changed, 6601 .hw_scan = iwl_mvm_mac_hw_scan, 6602 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 6603 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 6604 .sta_state = iwl_mvm_mac_sta_state, 6605 .sta_notify = iwl_mvm_mac_sta_notify, 6606 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 6607 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 6608 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 6609 .link_sta_rc_update = iwl_mvm_sta_rc_update, 6610 .conf_tx = iwl_mvm_mac_conf_tx, 6611 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 6612 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 6613 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 6614 .flush = iwl_mvm_mac_flush, 6615 .flush_sta = iwl_mvm_mac_flush_sta, 6616 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 6617 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 6618 .set_key = iwl_mvm_mac_set_key, 6619 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 6620 .remain_on_channel = iwl_mvm_roc, 6621 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 6622 .add_chanctx = iwl_mvm_add_chanctx, 6623 .remove_chanctx = iwl_mvm_remove_chanctx, 6624 .change_chanctx = iwl_mvm_change_chanctx, 6625 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 6626 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 6627 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 6628 6629 .start_ap = iwl_mvm_start_ap, 6630 .stop_ap = iwl_mvm_stop_ap, 6631 .join_ibss = iwl_mvm_start_ibss, 6632 .leave_ibss = iwl_mvm_stop_ibss, 6633 6634 .tx_last_beacon = iwl_mvm_tx_last_beacon, 6635 6636 .set_tim = iwl_mvm_set_tim, 6637 6638 .channel_switch = iwl_mvm_channel_switch, 6639 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch, 6640 .post_channel_switch = iwl_mvm_post_channel_switch, 6641 .abort_channel_switch = iwl_mvm_abort_channel_switch, 6642 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 6643 6644 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 6645 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 6646 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 6647 6648 .event_callback = iwl_mvm_mac_event_callback, 6649 6650 .sync_rx_queues = iwl_mvm_sync_rx_queues, 6651 6652 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 6653 6654 #ifdef CONFIG_PM_SLEEP 6655 /* look at d3.c */ 6656 .suspend = iwl_mvm_suspend, 6657 .resume = iwl_mvm_resume, 6658 .set_wakeup = iwl_mvm_set_wakeup, 6659 .set_rekey_data = iwl_mvm_set_rekey_data, 6660 #if IS_ENABLED(CONFIG_IPV6) 6661 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 6662 #endif 6663 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 6664 #endif 6665 .get_survey = iwl_mvm_mac_get_survey, 6666 .sta_statistics = iwl_mvm_mac_sta_statistics, 6667 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 6668 .start_pmsr = iwl_mvm_start_pmsr, 6669 .abort_pmsr = iwl_mvm_abort_pmsr, 6670 6671 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 6672 #ifdef CONFIG_IWLWIFI_DEBUGFS 6673 .vif_add_debugfs = iwl_mvm_vif_add_debugfs, 6674 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs, 6675 #endif 6676 .set_hw_timestamp = iwl_mvm_set_hw_timestamp, 6677 }; 6678