1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2021 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/kernel.h> 8 #include <linux/slab.h> 9 #include <linux/skbuff.h> 10 #include <linux/netdevice.h> 11 #include <linux/etherdevice.h> 12 #include <linux/ip.h> 13 #include <linux/if_arp.h> 14 #include <linux/time.h> 15 #include <net/mac80211.h> 16 #include <net/ieee80211_radiotap.h> 17 #include <net/tcp.h> 18 19 #include "iwl-drv.h" 20 #include "iwl-op-mode.h" 21 #include "iwl-io.h" 22 #include "mvm.h" 23 #include "sta.h" 24 #include "time-event.h" 25 #include "iwl-eeprom-parse.h" 26 #include "iwl-phy-db.h" 27 #include "testmode.h" 28 #include "fw/error-dump.h" 29 #include "iwl-prph.h" 30 #include "iwl-nvm-parse.h" 31 32 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 33 { 34 .max = 1, 35 .types = BIT(NL80211_IFTYPE_STATION), 36 }, 37 { 38 .max = 1, 39 .types = BIT(NL80211_IFTYPE_AP) | 40 BIT(NL80211_IFTYPE_P2P_CLIENT) | 41 BIT(NL80211_IFTYPE_P2P_GO), 42 }, 43 { 44 .max = 1, 45 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 46 }, 47 }; 48 49 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 50 { 51 .num_different_channels = 2, 52 .max_interfaces = 3, 53 .limits = iwl_mvm_limits, 54 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 55 }, 56 }; 57 58 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 59 /* 60 * Use the reserved field to indicate magic values. 61 * these values will only be used internally by the driver, 62 * and won't make it to the fw (reserved will be 0). 63 * BC_FILTER_MAGIC_IP - configure the val of this attribute to 64 * be the vif's ip address. in case there is not a single 65 * ip address (0, or more than 1), this attribute will 66 * be skipped. 67 * BC_FILTER_MAGIC_MAC - set the val of this attribute to 68 * the LSB bytes of the vif's mac address 69 */ 70 enum { 71 BC_FILTER_MAGIC_NONE = 0, 72 BC_FILTER_MAGIC_IP, 73 BC_FILTER_MAGIC_MAC, 74 }; 75 76 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 77 { 78 /* arp */ 79 .discard = 0, 80 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 81 .attrs = { 82 { 83 /* frame type - arp, hw type - ethernet */ 84 .offset_type = 85 BCAST_FILTER_OFFSET_PAYLOAD_START, 86 .offset = sizeof(rfc1042_header), 87 .val = cpu_to_be32(0x08060001), 88 .mask = cpu_to_be32(0xffffffff), 89 }, 90 { 91 /* arp dest ip */ 92 .offset_type = 93 BCAST_FILTER_OFFSET_PAYLOAD_START, 94 .offset = sizeof(rfc1042_header) + 2 + 95 sizeof(struct arphdr) + 96 ETH_ALEN + sizeof(__be32) + 97 ETH_ALEN, 98 .mask = cpu_to_be32(0xffffffff), 99 /* mark it as special field */ 100 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 101 }, 102 }, 103 }, 104 { 105 /* dhcp offer bcast */ 106 .discard = 0, 107 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 108 .attrs = { 109 { 110 /* udp dest port - 68 (bootp client)*/ 111 .offset_type = BCAST_FILTER_OFFSET_IP_END, 112 .offset = offsetof(struct udphdr, dest), 113 .val = cpu_to_be32(0x00440000), 114 .mask = cpu_to_be32(0xffff0000), 115 }, 116 { 117 /* dhcp - lsb bytes of client hw address */ 118 .offset_type = BCAST_FILTER_OFFSET_IP_END, 119 .offset = 38, 120 .mask = cpu_to_be32(0xffffffff), 121 /* mark it as special field */ 122 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 123 }, 124 }, 125 }, 126 /* last filter must be empty */ 127 {}, 128 }; 129 #endif 130 131 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 132 .max_peers = IWL_MVM_TOF_MAX_APS, 133 .report_ap_tsf = 1, 134 .randomize_mac_addr = 1, 135 136 .ftm = { 137 .supported = 1, 138 .asap = 1, 139 .non_asap = 1, 140 .request_lci = 1, 141 .request_civicloc = 1, 142 .trigger_based = 1, 143 .non_trigger_based = 1, 144 .max_bursts_exponent = -1, /* all supported */ 145 .max_ftms_per_burst = 0, /* no limits */ 146 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 147 BIT(NL80211_CHAN_WIDTH_20) | 148 BIT(NL80211_CHAN_WIDTH_40) | 149 BIT(NL80211_CHAN_WIDTH_80) | 150 BIT(NL80211_CHAN_WIDTH_160), 151 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 152 BIT(NL80211_PREAMBLE_HT) | 153 BIT(NL80211_PREAMBLE_VHT) | 154 BIT(NL80211_PREAMBLE_HE), 155 }, 156 }; 157 158 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 159 enum set_key_cmd cmd, 160 struct ieee80211_vif *vif, 161 struct ieee80211_sta *sta, 162 struct ieee80211_key_conf *key); 163 164 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 165 { 166 int i; 167 168 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 169 for (i = 0; i < NUM_PHY_CTX; i++) { 170 mvm->phy_ctxts[i].id = i; 171 mvm->phy_ctxts[i].ref = 0; 172 } 173 } 174 175 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 176 const char *alpha2, 177 enum iwl_mcc_source src_id, 178 bool *changed) 179 { 180 struct ieee80211_regdomain *regd = NULL; 181 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 182 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 183 struct iwl_mcc_update_resp *resp; 184 u8 resp_ver; 185 186 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 187 188 lockdep_assert_held(&mvm->mutex); 189 190 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 191 if (IS_ERR_OR_NULL(resp)) { 192 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 193 PTR_ERR_OR_ZERO(resp)); 194 resp = NULL; 195 goto out; 196 } 197 198 if (changed) { 199 u32 status = le32_to_cpu(resp->status); 200 201 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 202 status == MCC_RESP_ILLEGAL); 203 } 204 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 205 MCC_UPDATE_CMD, 0); 206 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 207 208 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 209 __le32_to_cpu(resp->n_channels), 210 resp->channels, 211 __le16_to_cpu(resp->mcc), 212 __le16_to_cpu(resp->geo_info), 213 __le16_to_cpu(resp->cap), resp_ver); 214 /* Store the return source id */ 215 src_id = resp->source_id; 216 if (IS_ERR_OR_NULL(regd)) { 217 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 218 PTR_ERR_OR_ZERO(regd)); 219 goto out; 220 } 221 222 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 223 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 224 mvm->lar_regdom_set = true; 225 mvm->mcc_src = src_id; 226 227 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 228 229 out: 230 kfree(resp); 231 return regd; 232 } 233 234 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 235 { 236 bool changed; 237 struct ieee80211_regdomain *regd; 238 239 if (!iwl_mvm_is_lar_supported(mvm)) 240 return; 241 242 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 243 if (!IS_ERR_OR_NULL(regd)) { 244 /* only update the regulatory core if changed */ 245 if (changed) 246 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 247 248 kfree(regd); 249 } 250 } 251 252 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 253 bool *changed) 254 { 255 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 256 iwl_mvm_is_wifi_mcc_supported(mvm) ? 257 MCC_SOURCE_GET_CURRENT : 258 MCC_SOURCE_OLD_FW, changed); 259 } 260 261 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 262 { 263 enum iwl_mcc_source used_src; 264 struct ieee80211_regdomain *regd; 265 int ret; 266 bool changed; 267 const struct ieee80211_regdomain *r = 268 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 269 270 if (!r) 271 return -ENOENT; 272 273 /* save the last source in case we overwrite it below */ 274 used_src = mvm->mcc_src; 275 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 276 /* Notify the firmware we support wifi location updates */ 277 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 278 if (!IS_ERR_OR_NULL(regd)) 279 kfree(regd); 280 } 281 282 /* Now set our last stored MCC and source */ 283 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 284 &changed); 285 if (IS_ERR_OR_NULL(regd)) 286 return -EIO; 287 288 /* update cfg80211 if the regdomain was changed */ 289 if (changed) 290 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 291 else 292 ret = 0; 293 294 kfree(regd); 295 return ret; 296 } 297 298 static const u8 he_if_types_ext_capa_sta[] = { 299 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 300 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 301 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 302 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 303 }; 304 305 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 306 { 307 .iftype = NL80211_IFTYPE_STATION, 308 .extended_capabilities = he_if_types_ext_capa_sta, 309 .extended_capabilities_mask = he_if_types_ext_capa_sta, 310 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 311 }, 312 }; 313 314 static int 315 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 316 { 317 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 318 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 319 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 320 return 0; 321 } 322 323 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 324 { 325 struct ieee80211_hw *hw = mvm->hw; 326 int num_mac, ret, i; 327 static const u32 mvm_ciphers[] = { 328 WLAN_CIPHER_SUITE_WEP40, 329 WLAN_CIPHER_SUITE_WEP104, 330 WLAN_CIPHER_SUITE_TKIP, 331 WLAN_CIPHER_SUITE_CCMP, 332 }; 333 #ifdef CONFIG_PM_SLEEP 334 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 335 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 336 #endif 337 338 /* Tell mac80211 our characteristics */ 339 ieee80211_hw_set(hw, SIGNAL_DBM); 340 ieee80211_hw_set(hw, SPECTRUM_MGMT); 341 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 342 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 343 ieee80211_hw_set(hw, SUPPORTS_PS); 344 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 345 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 346 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 347 ieee80211_hw_set(hw, CONNECTION_MONITOR); 348 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 349 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 350 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 351 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 352 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 353 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 354 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 355 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 356 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 357 /* 358 * On older devices, enabling TX A-MSDU occasionally leads to 359 * something getting messed up, the command read from the FIFO 360 * gets out of sync and isn't a TX command, so that we have an 361 * assert EDC. 362 * 363 * It's not clear where the bug is, but since we didn't used to 364 * support A-MSDU until moving the mac80211 iTXQs, just leave it 365 * for older devices. We also don't see this issue on any newer 366 * devices. 367 */ 368 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 369 ieee80211_hw_set(hw, TX_AMSDU); 370 ieee80211_hw_set(hw, TX_FRAG_LIST); 371 372 if (iwl_mvm_has_tlc_offload(mvm)) { 373 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 374 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 375 } 376 377 if (iwl_mvm_has_new_rx_api(mvm)) 378 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 379 380 if (fw_has_capa(&mvm->fw->ucode_capa, 381 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 382 ieee80211_hw_set(hw, AP_LINK_PS); 383 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 384 /* 385 * we absolutely need this for the new TX API since that comes 386 * with many more queues than the current code can deal with 387 * for station powersave 388 */ 389 return -EINVAL; 390 } 391 392 if (mvm->trans->num_rx_queues > 1) 393 ieee80211_hw_set(hw, USES_RSS); 394 395 if (mvm->trans->max_skb_frags) 396 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 397 398 hw->queues = IEEE80211_NUM_ACS; 399 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 400 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 401 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 402 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 403 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 404 405 hw->radiotap_timestamp.units_pos = 406 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 407 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 408 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 409 hw->radiotap_timestamp.accuracy = 22; 410 411 if (!iwl_mvm_has_tlc_offload(mvm)) 412 hw->rate_control_algorithm = RS_NAME; 413 414 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 415 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 416 hw->max_tx_fragments = mvm->trans->max_skb_frags; 417 418 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 419 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 420 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 421 hw->wiphy->cipher_suites = mvm->ciphers; 422 423 if (iwl_mvm_has_new_rx_api(mvm)) { 424 mvm->ciphers[hw->wiphy->n_cipher_suites] = 425 WLAN_CIPHER_SUITE_GCMP; 426 hw->wiphy->n_cipher_suites++; 427 mvm->ciphers[hw->wiphy->n_cipher_suites] = 428 WLAN_CIPHER_SUITE_GCMP_256; 429 hw->wiphy->n_cipher_suites++; 430 } 431 432 if (iwlwifi_mod_params.swcrypto) 433 IWL_ERR(mvm, 434 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 435 if (!iwlwifi_mod_params.bt_coex_active) 436 IWL_ERR(mvm, 437 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 438 439 ieee80211_hw_set(hw, MFP_CAPABLE); 440 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 441 hw->wiphy->n_cipher_suites++; 442 if (iwl_mvm_has_new_rx_api(mvm)) { 443 mvm->ciphers[hw->wiphy->n_cipher_suites] = 444 WLAN_CIPHER_SUITE_BIP_GMAC_128; 445 hw->wiphy->n_cipher_suites++; 446 mvm->ciphers[hw->wiphy->n_cipher_suites] = 447 WLAN_CIPHER_SUITE_BIP_GMAC_256; 448 hw->wiphy->n_cipher_suites++; 449 } 450 451 /* currently FW API supports only one optional cipher scheme */ 452 if (mvm->fw->cs[0].cipher) { 453 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; 454 struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; 455 456 mvm->hw->n_cipher_schemes = 1; 457 458 cs->cipher = le32_to_cpu(fwcs->cipher); 459 cs->iftype = BIT(NL80211_IFTYPE_STATION); 460 cs->hdr_len = fwcs->hdr_len; 461 cs->pn_len = fwcs->pn_len; 462 cs->pn_off = fwcs->pn_off; 463 cs->key_idx_off = fwcs->key_idx_off; 464 cs->key_idx_mask = fwcs->key_idx_mask; 465 cs->key_idx_shift = fwcs->key_idx_shift; 466 cs->mic_len = fwcs->mic_len; 467 468 mvm->hw->cipher_schemes = mvm->cs; 469 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; 470 hw->wiphy->n_cipher_suites++; 471 } 472 473 if (fw_has_capa(&mvm->fw->ucode_capa, 474 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 475 wiphy_ext_feature_set(hw->wiphy, 476 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 477 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 478 } 479 480 if (fw_has_capa(&mvm->fw->ucode_capa, 481 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 482 wiphy_ext_feature_set(hw->wiphy, 483 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 484 485 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 486 hw->wiphy->features |= 487 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 488 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 489 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 490 491 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 492 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 493 hw->chanctx_data_size = sizeof(u16); 494 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 495 496 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 497 BIT(NL80211_IFTYPE_P2P_CLIENT) | 498 BIT(NL80211_IFTYPE_AP) | 499 BIT(NL80211_IFTYPE_P2P_GO) | 500 BIT(NL80211_IFTYPE_P2P_DEVICE) | 501 BIT(NL80211_IFTYPE_ADHOC); 502 503 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 504 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 505 506 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 507 * the hw, preventing us to control which key(id) to use per MPDU. 508 * Till that's fixed we can't use Extended Key ID for the newer cards. 509 */ 510 if (!iwl_mvm_has_new_tx_api(mvm)) 511 wiphy_ext_feature_set(hw->wiphy, 512 NL80211_EXT_FEATURE_EXT_KEY_ID); 513 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 514 515 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 516 if (iwl_mvm_is_lar_supported(mvm)) 517 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 518 else 519 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 520 REGULATORY_DISABLE_BEACON_HINTS; 521 522 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 523 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 524 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 525 526 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 527 hw->wiphy->n_iface_combinations = 528 ARRAY_SIZE(iwl_mvm_iface_combinations); 529 530 hw->wiphy->max_remain_on_channel_duration = 10000; 531 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 532 533 /* Extract MAC address */ 534 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 535 hw->wiphy->addresses = mvm->addresses; 536 hw->wiphy->n_addresses = 1; 537 538 /* Extract additional MAC addresses if available */ 539 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 540 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 541 542 for (i = 1; i < num_mac; i++) { 543 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 544 ETH_ALEN); 545 mvm->addresses[i].addr[5]++; 546 hw->wiphy->n_addresses++; 547 } 548 549 iwl_mvm_reset_phy_ctxts(mvm); 550 551 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 552 553 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 554 555 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 556 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 557 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 558 559 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 560 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 561 else 562 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 563 564 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 565 hw->wiphy->bands[NL80211_BAND_2GHZ] = 566 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 567 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 568 hw->wiphy->bands[NL80211_BAND_5GHZ] = 569 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 570 571 if (fw_has_capa(&mvm->fw->ucode_capa, 572 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 573 fw_has_api(&mvm->fw->ucode_capa, 574 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 575 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 576 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 577 } 578 if (fw_has_capa(&mvm->fw->ucode_capa, 579 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 580 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 581 hw->wiphy->bands[NL80211_BAND_6GHZ] = 582 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 583 584 hw->wiphy->hw_version = mvm->trans->hw_id; 585 586 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 587 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 588 else 589 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 590 591 hw->wiphy->max_sched_scan_reqs = 1; 592 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 593 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 594 /* we create the 802.11 header and zero length SSID IE. */ 595 hw->wiphy->max_sched_scan_ie_len = 596 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 597 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 598 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 599 600 /* 601 * the firmware uses u8 for num of iterations, but 0xff is saved for 602 * infinite loop, so the maximum number of iterations is actually 254. 603 */ 604 hw->wiphy->max_sched_scan_plan_iterations = 254; 605 606 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 607 NL80211_FEATURE_LOW_PRIORITY_SCAN | 608 NL80211_FEATURE_P2P_GO_OPPPS | 609 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 610 NL80211_FEATURE_DYNAMIC_SMPS | 611 NL80211_FEATURE_STATIC_SMPS | 612 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 613 614 if (fw_has_capa(&mvm->fw->ucode_capa, 615 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 616 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 617 if (fw_has_capa(&mvm->fw->ucode_capa, 618 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 619 hw->wiphy->features |= NL80211_FEATURE_QUIET; 620 621 if (fw_has_capa(&mvm->fw->ucode_capa, 622 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 623 hw->wiphy->features |= 624 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 625 626 if (fw_has_capa(&mvm->fw->ucode_capa, 627 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 628 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 629 630 if (iwl_fw_lookup_cmd_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 631 WOWLAN_KEK_KCK_MATERIAL, 632 IWL_FW_CMD_VER_UNKNOWN) == 3) 633 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 634 635 if (fw_has_api(&mvm->fw->ucode_capa, 636 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 637 wiphy_ext_feature_set(hw->wiphy, 638 NL80211_EXT_FEATURE_SCAN_START_TIME); 639 wiphy_ext_feature_set(hw->wiphy, 640 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 641 } 642 643 if (iwl_mvm_is_oce_supported(mvm)) { 644 wiphy_ext_feature_set(hw->wiphy, 645 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 646 wiphy_ext_feature_set(hw->wiphy, 647 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 648 wiphy_ext_feature_set(hw->wiphy, 649 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 650 wiphy_ext_feature_set(hw->wiphy, 651 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 652 } 653 654 if (mvm->nvm_data->sku_cap_11ax_enable && 655 !iwlwifi_mod_params.disable_11ax) { 656 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 657 hw->wiphy->num_iftype_ext_capab = 658 ARRAY_SIZE(he_iftypes_ext_capa); 659 660 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 661 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 662 } 663 664 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 665 666 #ifdef CONFIG_PM_SLEEP 667 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 668 mvm->trans->ops->d3_suspend && 669 mvm->trans->ops->d3_resume && 670 device_can_wakeup(mvm->trans->dev)) { 671 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 672 WIPHY_WOWLAN_DISCONNECT | 673 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 674 WIPHY_WOWLAN_RFKILL_RELEASE | 675 WIPHY_WOWLAN_NET_DETECT; 676 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 677 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 678 WIPHY_WOWLAN_4WAY_HANDSHAKE; 679 680 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 681 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 682 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 683 mvm->wowlan.max_nd_match_sets = 684 iwl_umac_scan_get_max_profiles(mvm->fw); 685 hw->wiphy->wowlan = &mvm->wowlan; 686 } 687 #endif 688 689 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 690 /* assign default bcast filtering configuration */ 691 mvm->bcast_filters = iwl_mvm_default_bcast_filters; 692 #endif 693 694 ret = iwl_mvm_leds_init(mvm); 695 if (ret) 696 return ret; 697 698 if (fw_has_capa(&mvm->fw->ucode_capa, 699 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 700 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 701 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 702 ieee80211_hw_set(hw, TDLS_WIDER_BW); 703 } 704 705 if (fw_has_capa(&mvm->fw->ucode_capa, 706 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 707 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 708 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 709 } 710 711 hw->netdev_features |= mvm->cfg->features; 712 if (!iwl_mvm_is_csum_supported(mvm)) 713 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | 714 NETIF_F_RXCSUM); 715 716 if (mvm->cfg->vht_mu_mimo_supported) 717 wiphy_ext_feature_set(hw->wiphy, 718 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 719 720 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 721 wiphy_ext_feature_set(hw->wiphy, 722 NL80211_EXT_FEATURE_PROTECTED_TWT); 723 724 iwl_mvm_vendor_cmds_register(mvm); 725 726 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 727 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 728 729 ret = ieee80211_register_hw(mvm->hw); 730 if (ret) { 731 iwl_mvm_leds_exit(mvm); 732 } 733 734 return ret; 735 } 736 737 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 738 struct ieee80211_sta *sta) 739 { 740 if (likely(sta)) { 741 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 742 return; 743 } else { 744 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 745 return; 746 } 747 748 ieee80211_free_txskb(mvm->hw, skb); 749 } 750 751 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 752 struct ieee80211_tx_control *control, 753 struct sk_buff *skb) 754 { 755 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 756 struct ieee80211_sta *sta = control->sta; 757 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 758 struct ieee80211_hdr *hdr = (void *)skb->data; 759 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 760 IEEE80211_TX_CTL_TX_OFFCHAN; 761 762 if (iwl_mvm_is_radio_killed(mvm)) { 763 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 764 goto drop; 765 } 766 767 if (offchannel && 768 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 769 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 770 goto drop; 771 772 /* 773 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 774 * so we treat the others as broadcast 775 */ 776 if (ieee80211_is_mgmt(hdr->frame_control)) 777 sta = NULL; 778 779 /* If there is no sta, and it's not offchannel - send through AP */ 780 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 781 !offchannel) { 782 struct iwl_mvm_vif *mvmvif = 783 iwl_mvm_vif_from_mac80211(info->control.vif); 784 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 785 786 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 787 /* mac80211 holds rcu read lock */ 788 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 789 if (IS_ERR_OR_NULL(sta)) 790 goto drop; 791 } 792 } 793 794 iwl_mvm_tx_skb(mvm, skb, sta); 795 return; 796 drop: 797 ieee80211_free_txskb(hw, skb); 798 } 799 800 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 801 { 802 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 803 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 804 struct sk_buff *skb = NULL; 805 806 /* 807 * No need for threads to be pending here, they can leave the first 808 * taker all the work. 809 * 810 * mvmtxq->tx_request logic: 811 * 812 * If 0, no one is currently TXing, set to 1 to indicate current thread 813 * will now start TX and other threads should quit. 814 * 815 * If 1, another thread is currently TXing, set to 2 to indicate to 816 * that thread that there was another request. Since that request may 817 * have raced with the check whether the queue is empty, the TXing 818 * thread should check the queue's status one more time before leaving. 819 * This check is done in order to not leave any TX hanging in the queue 820 * until the next TX invocation (which may not even happen). 821 * 822 * If 2, another thread is currently TXing, and it will already double 823 * check the queue, so do nothing. 824 */ 825 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 826 return; 827 828 rcu_read_lock(); 829 do { 830 while (likely(!mvmtxq->stopped && 831 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 832 skb = ieee80211_tx_dequeue(hw, txq); 833 834 if (!skb) { 835 if (txq->sta) 836 IWL_DEBUG_TX(mvm, 837 "TXQ of sta %pM tid %d is now empty\n", 838 txq->sta->addr, 839 txq->tid); 840 break; 841 } 842 843 iwl_mvm_tx_skb(mvm, skb, txq->sta); 844 } 845 } while (atomic_dec_return(&mvmtxq->tx_request)); 846 rcu_read_unlock(); 847 } 848 849 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 850 struct ieee80211_txq *txq) 851 { 852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 853 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 854 855 /* 856 * Please note that racing is handled very carefully here: 857 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 858 * deleted afterwards. 859 * This means that if: 860 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 861 * queue is allocated and we can TX. 862 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 863 * a race, should defer the frame. 864 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 865 * need to allocate the queue and defer the frame. 866 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 867 * queue is already scheduled for allocation, no need to allocate, 868 * should defer the frame. 869 */ 870 871 /* If the queue is allocated TX and return. */ 872 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 873 /* 874 * Check that list is empty to avoid a race where txq_id is 875 * already updated, but the queue allocation work wasn't 876 * finished 877 */ 878 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 879 return; 880 881 iwl_mvm_mac_itxq_xmit(hw, txq); 882 return; 883 } 884 885 /* The list is being deleted only after the queue is fully allocated. */ 886 if (!list_empty(&mvmtxq->list)) 887 return; 888 889 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 890 schedule_work(&mvm->add_stream_wk); 891 } 892 893 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 894 do { \ 895 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 896 break; \ 897 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 898 } while (0) 899 900 static void 901 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 902 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 903 enum ieee80211_ampdu_mlme_action action) 904 { 905 struct iwl_fw_dbg_trigger_tlv *trig; 906 struct iwl_fw_dbg_trigger_ba *ba_trig; 907 908 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 909 FW_DBG_TRIGGER_BA); 910 if (!trig) 911 return; 912 913 ba_trig = (void *)trig->data; 914 915 switch (action) { 916 case IEEE80211_AMPDU_TX_OPERATIONAL: { 917 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 918 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 919 920 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 921 "TX AGG START: MAC %pM tid %d ssn %d\n", 922 sta->addr, tid, tid_data->ssn); 923 break; 924 } 925 case IEEE80211_AMPDU_TX_STOP_CONT: 926 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 927 "TX AGG STOP: MAC %pM tid %d\n", 928 sta->addr, tid); 929 break; 930 case IEEE80211_AMPDU_RX_START: 931 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 932 "RX AGG START: MAC %pM tid %d ssn %d\n", 933 sta->addr, tid, rx_ba_ssn); 934 break; 935 case IEEE80211_AMPDU_RX_STOP: 936 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 937 "RX AGG STOP: MAC %pM tid %d\n", 938 sta->addr, tid); 939 break; 940 default: 941 break; 942 } 943 } 944 945 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 946 struct ieee80211_vif *vif, 947 struct ieee80211_ampdu_params *params) 948 { 949 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 950 int ret; 951 struct ieee80211_sta *sta = params->sta; 952 enum ieee80211_ampdu_mlme_action action = params->action; 953 u16 tid = params->tid; 954 u16 *ssn = ¶ms->ssn; 955 u16 buf_size = params->buf_size; 956 bool amsdu = params->amsdu; 957 u16 timeout = params->timeout; 958 959 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 960 sta->addr, tid, action); 961 962 if (!(mvm->nvm_data->sku_cap_11n_enable)) 963 return -EACCES; 964 965 mutex_lock(&mvm->mutex); 966 967 switch (action) { 968 case IEEE80211_AMPDU_RX_START: 969 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 970 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 971 struct iwl_mvm_vif *mvmvif; 972 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 973 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 974 975 mdata->opened_rx_ba_sessions = true; 976 mvmvif = iwl_mvm_vif_from_mac80211(vif); 977 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 978 } 979 if (!iwl_enable_rx_ampdu()) { 980 ret = -EINVAL; 981 break; 982 } 983 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 984 timeout); 985 break; 986 case IEEE80211_AMPDU_RX_STOP: 987 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 988 timeout); 989 break; 990 case IEEE80211_AMPDU_TX_START: 991 if (!iwl_enable_tx_ampdu()) { 992 ret = -EINVAL; 993 break; 994 } 995 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 996 break; 997 case IEEE80211_AMPDU_TX_STOP_CONT: 998 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 999 break; 1000 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1001 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1002 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1003 break; 1004 case IEEE80211_AMPDU_TX_OPERATIONAL: 1005 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1006 buf_size, amsdu); 1007 break; 1008 default: 1009 WARN_ON_ONCE(1); 1010 ret = -EINVAL; 1011 break; 1012 } 1013 1014 if (!ret) { 1015 u16 rx_ba_ssn = 0; 1016 1017 if (action == IEEE80211_AMPDU_RX_START) 1018 rx_ba_ssn = *ssn; 1019 1020 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1021 rx_ba_ssn, action); 1022 } 1023 mutex_unlock(&mvm->mutex); 1024 1025 return ret; 1026 } 1027 1028 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1029 struct ieee80211_vif *vif) 1030 { 1031 struct iwl_mvm *mvm = data; 1032 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1033 1034 mvmvif->uploaded = false; 1035 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1036 1037 spin_lock_bh(&mvm->time_event_lock); 1038 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1039 spin_unlock_bh(&mvm->time_event_lock); 1040 1041 mvmvif->phy_ctxt = NULL; 1042 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1043 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 1044 } 1045 1046 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1047 { 1048 iwl_mvm_stop_device(mvm); 1049 1050 mvm->cur_aid = 0; 1051 1052 mvm->scan_status = 0; 1053 mvm->ps_disabled = false; 1054 mvm->rfkill_safe_init_done = false; 1055 1056 /* just in case one was running */ 1057 iwl_mvm_cleanup_roc_te(mvm); 1058 ieee80211_remain_on_channel_expired(mvm->hw); 1059 1060 iwl_mvm_ftm_restart(mvm); 1061 1062 /* 1063 * cleanup all interfaces, even inactive ones, as some might have 1064 * gone down during the HW restart 1065 */ 1066 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1067 1068 mvm->p2p_device_vif = NULL; 1069 1070 iwl_mvm_reset_phy_ctxts(mvm); 1071 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1072 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1073 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1074 1075 ieee80211_wake_queues(mvm->hw); 1076 1077 mvm->vif_count = 0; 1078 mvm->rx_ba_sessions = 0; 1079 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1080 mvm->monitor_on = false; 1081 1082 /* keep statistics ticking */ 1083 iwl_mvm_accu_radio_stats(mvm); 1084 } 1085 1086 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1087 { 1088 int ret; 1089 1090 lockdep_assert_held(&mvm->mutex); 1091 1092 ret = iwl_mvm_mei_get_ownership(mvm); 1093 if (ret) 1094 return ret; 1095 1096 if (mvm->mei_nvm_data) { 1097 /* We got the NIC, we can now free the MEI NVM data */ 1098 kfree(mvm->mei_nvm_data); 1099 mvm->mei_nvm_data = NULL; 1100 1101 /* 1102 * We can't free the nvm_data we allocated based on the SAP 1103 * data because we registered to cfg80211 with the channels 1104 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1105 * just in order to be able free it later. 1106 * NULLify nvm_data so that we will read the NVM from the 1107 * firmware this time. 1108 */ 1109 mvm->temp_nvm_data = mvm->nvm_data; 1110 mvm->nvm_data = NULL; 1111 } 1112 1113 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1114 /* 1115 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1116 * so later code will - from now on - see that we're doing it. 1117 */ 1118 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1119 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1120 /* Clean up some internal and mac80211 state on restart */ 1121 iwl_mvm_restart_cleanup(mvm); 1122 } 1123 ret = iwl_mvm_up(mvm); 1124 1125 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1126 NULL); 1127 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1128 NULL); 1129 1130 mvm->last_reset_or_resume_time_jiffies = jiffies; 1131 1132 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1133 /* Something went wrong - we need to finish some cleanup 1134 * that normally iwl_mvm_mac_restart_complete() below 1135 * would do. 1136 */ 1137 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1138 } 1139 1140 return ret; 1141 } 1142 1143 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1144 { 1145 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1146 int ret; 1147 int retry, max_retry = 0; 1148 1149 mutex_lock(&mvm->mutex); 1150 1151 /* we are starting the mac not in error flow, and restart is enabled */ 1152 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1153 iwlwifi_mod_params.fw_restart) { 1154 max_retry = IWL_MAX_INIT_RETRY; 1155 /* 1156 * This will prevent mac80211 recovery flows to trigger during 1157 * init failures 1158 */ 1159 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1160 } 1161 1162 for (retry = 0; retry <= max_retry; retry++) { 1163 ret = __iwl_mvm_mac_start(mvm); 1164 if (!ret) 1165 break; 1166 1167 IWL_ERR(mvm, "mac start retry %d\n", retry); 1168 } 1169 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1170 1171 mutex_unlock(&mvm->mutex); 1172 1173 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1174 1175 return ret; 1176 } 1177 1178 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1179 { 1180 int ret; 1181 1182 mutex_lock(&mvm->mutex); 1183 1184 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1185 1186 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1187 if (ret) 1188 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1189 ret); 1190 1191 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1192 1193 /* 1194 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1195 * of packets the FW sent out, so we must reconnect. 1196 */ 1197 iwl_mvm_teardown_tdls_peers(mvm); 1198 1199 mutex_unlock(&mvm->mutex); 1200 } 1201 1202 static void 1203 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1204 enum ieee80211_reconfig_type reconfig_type) 1205 { 1206 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1207 1208 switch (reconfig_type) { 1209 case IEEE80211_RECONFIG_TYPE_RESTART: 1210 iwl_mvm_restart_complete(mvm); 1211 break; 1212 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1213 break; 1214 } 1215 } 1216 1217 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1218 { 1219 lockdep_assert_held(&mvm->mutex); 1220 1221 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1222 1223 /* firmware counters are obviously reset now, but we shouldn't 1224 * partially track so also clear the fw_reset_accu counters. 1225 */ 1226 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1227 1228 /* async_handlers_wk is now blocked */ 1229 1230 if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP, ADD_STA, 0) < 12) 1231 iwl_mvm_rm_aux_sta(mvm); 1232 1233 iwl_mvm_stop_device(mvm); 1234 1235 iwl_mvm_async_handlers_purge(mvm); 1236 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1237 1238 /* 1239 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1240 * hw (as restart_complete() won't be called in this case) and mac80211 1241 * won't execute the restart. 1242 * But make sure to cleanup interfaces that have gone down before/during 1243 * HW restart was requested. 1244 */ 1245 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1246 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1247 &mvm->status)) 1248 ieee80211_iterate_interfaces(mvm->hw, 0, 1249 iwl_mvm_cleanup_iterator, mvm); 1250 1251 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1252 * make sure there's nothing left there and warn if any is found. 1253 */ 1254 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1255 int i; 1256 1257 for (i = 0; i < mvm->max_scans; i++) { 1258 if (WARN_ONCE(mvm->scan_uid_status[i], 1259 "UMAC scan UID %d status was not cleaned\n", 1260 i)) 1261 mvm->scan_uid_status[i] = 0; 1262 } 1263 } 1264 } 1265 1266 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1267 { 1268 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1269 1270 flush_work(&mvm->async_handlers_wk); 1271 flush_work(&mvm->add_stream_wk); 1272 1273 /* 1274 * Lock and clear the firmware running bit here already, so that 1275 * new commands coming in elsewhere, e.g. from debugfs, will not 1276 * be able to proceed. This is important here because one of those 1277 * debugfs files causes the firmware dump to be triggered, and if we 1278 * don't stop debugfs accesses before canceling that it could be 1279 * retriggered after we flush it but before we've cleared the bit. 1280 */ 1281 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1282 1283 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1284 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1285 1286 /* 1287 * The work item could be running or queued if the 1288 * ROC time event stops just as we get here. 1289 */ 1290 flush_work(&mvm->roc_done_wk); 1291 1292 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1293 1294 mutex_lock(&mvm->mutex); 1295 __iwl_mvm_mac_stop(mvm); 1296 mutex_unlock(&mvm->mutex); 1297 1298 /* 1299 * The worker might have been waiting for the mutex, let it run and 1300 * discover that its list is now empty. 1301 */ 1302 cancel_work_sync(&mvm->async_handlers_wk); 1303 } 1304 1305 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1306 { 1307 u16 i; 1308 1309 lockdep_assert_held(&mvm->mutex); 1310 1311 for (i = 0; i < NUM_PHY_CTX; i++) 1312 if (!mvm->phy_ctxts[i].ref) 1313 return &mvm->phy_ctxts[i]; 1314 1315 IWL_ERR(mvm, "No available PHY context\n"); 1316 return NULL; 1317 } 1318 1319 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1320 s16 tx_power) 1321 { 1322 int len; 1323 struct iwl_dev_tx_power_cmd cmd = { 1324 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1325 .common.mac_context_id = 1326 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1327 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1328 }; 1329 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP, 1330 REDUCE_TX_POWER_CMD, 1331 IWL_FW_CMD_VER_UNKNOWN); 1332 1333 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1334 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1335 1336 if (cmd_ver == 6) 1337 len = sizeof(cmd.v6); 1338 else if (fw_has_api(&mvm->fw->ucode_capa, 1339 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1340 len = sizeof(cmd.v5); 1341 else if (fw_has_capa(&mvm->fw->ucode_capa, 1342 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1343 len = sizeof(cmd.v4); 1344 else 1345 len = sizeof(cmd.v3); 1346 1347 /* all structs have the same common part, add it */ 1348 len += sizeof(cmd.common); 1349 1350 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1351 } 1352 1353 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1354 struct ieee80211_vif *vif) 1355 { 1356 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1357 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1358 int ret; 1359 1360 mutex_lock(&mvm->mutex); 1361 1362 if (vif->type == NL80211_IFTYPE_STATION) { 1363 struct iwl_mvm_sta *mvmsta; 1364 1365 mvmvif->csa_bcn_pending = false; 1366 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1367 mvmvif->ap_sta_id); 1368 1369 if (WARN_ON(!mvmsta)) { 1370 ret = -EIO; 1371 goto out_unlock; 1372 } 1373 1374 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1375 1376 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1377 1378 if (!fw_has_capa(&mvm->fw->ucode_capa, 1379 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1380 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1381 if (ret) 1382 goto out_unlock; 1383 1384 iwl_mvm_stop_session_protection(mvm, vif); 1385 } 1386 } 1387 1388 mvmvif->ps_disabled = false; 1389 1390 ret = iwl_mvm_power_update_ps(mvm); 1391 1392 out_unlock: 1393 if (mvmvif->csa_failed) 1394 ret = -EIO; 1395 mutex_unlock(&mvm->mutex); 1396 1397 return ret; 1398 } 1399 1400 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1401 struct ieee80211_vif *vif) 1402 { 1403 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1404 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1405 struct iwl_chan_switch_te_cmd cmd = { 1406 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1407 mvmvif->color)), 1408 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1409 }; 1410 1411 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1412 1413 mutex_lock(&mvm->mutex); 1414 if (!fw_has_capa(&mvm->fw->ucode_capa, 1415 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1416 iwl_mvm_remove_csa_period(mvm, vif); 1417 else 1418 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1419 WIDE_ID(MAC_CONF_GROUP, 1420 CHANNEL_SWITCH_TIME_EVENT_CMD), 1421 0, sizeof(cmd), &cmd)); 1422 mvmvif->csa_failed = true; 1423 mutex_unlock(&mvm->mutex); 1424 1425 iwl_mvm_post_channel_switch(hw, vif); 1426 } 1427 1428 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1429 { 1430 struct iwl_mvm_vif *mvmvif; 1431 struct ieee80211_vif *vif; 1432 1433 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1434 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1435 1436 /* Trigger disconnect (should clear the CSA state) */ 1437 ieee80211_chswitch_done(vif, false); 1438 } 1439 1440 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1441 struct ieee80211_vif *vif) 1442 { 1443 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1444 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1445 int ret; 1446 1447 mvmvif->mvm = mvm; 1448 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1449 1450 /* 1451 * Not much to do here. The stack will not allow interface 1452 * types or combinations that we didn't advertise, so we 1453 * don't really have to check the types. 1454 */ 1455 1456 mutex_lock(&mvm->mutex); 1457 1458 /* make sure that beacon statistics don't go backwards with FW reset */ 1459 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1460 mvmvif->beacon_stats.accu_num_beacons += 1461 mvmvif->beacon_stats.num_beacons; 1462 1463 /* Allocate resources for the MAC context, and add it to the fw */ 1464 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1465 if (ret) 1466 goto out_unlock; 1467 1468 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1469 1470 /* Counting number of interfaces is needed for legacy PM */ 1471 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1472 mvm->vif_count++; 1473 1474 /* 1475 * The AP binding flow can be done only after the beacon 1476 * template is configured (which happens only in the mac80211 1477 * start_ap() flow), and adding the broadcast station can happen 1478 * only after the binding. 1479 * In addition, since modifying the MAC before adding a bcast 1480 * station is not allowed by the FW, delay the adding of MAC context to 1481 * the point where we can also add the bcast station. 1482 * In short: there's not much we can do at this point, other than 1483 * allocating resources :) 1484 */ 1485 if (vif->type == NL80211_IFTYPE_AP || 1486 vif->type == NL80211_IFTYPE_ADHOC) { 1487 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1488 if (ret) { 1489 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1490 goto out_release; 1491 } 1492 1493 /* 1494 * Only queue for this station is the mcast queue, 1495 * which shouldn't be in TFD mask anyway 1496 */ 1497 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1498 0, vif->type, 1499 IWL_STA_MULTICAST); 1500 if (ret) 1501 goto out_release; 1502 1503 iwl_mvm_vif_dbgfs_register(mvm, vif); 1504 goto out_unlock; 1505 } 1506 1507 mvmvif->features |= hw->netdev_features; 1508 1509 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1510 if (ret) 1511 goto out_release; 1512 1513 ret = iwl_mvm_power_update_mac(mvm); 1514 if (ret) 1515 goto out_remove_mac; 1516 1517 /* beacon filtering */ 1518 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1519 if (ret) 1520 goto out_remove_mac; 1521 1522 if (!mvm->bf_allowed_vif && 1523 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1524 mvm->bf_allowed_vif = mvmvif; 1525 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1526 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1527 } 1528 1529 /* 1530 * P2P_DEVICE interface does not have a channel context assigned to it, 1531 * so a dedicated PHY context is allocated to it and the corresponding 1532 * MAC context is bound to it at this stage. 1533 */ 1534 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1535 1536 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1537 if (!mvmvif->phy_ctxt) { 1538 ret = -ENOSPC; 1539 goto out_free_bf; 1540 } 1541 1542 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1543 ret = iwl_mvm_binding_add_vif(mvm, vif); 1544 if (ret) 1545 goto out_unref_phy; 1546 1547 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1548 if (ret) 1549 goto out_unbind; 1550 1551 /* Save a pointer to p2p device vif, so it can later be used to 1552 * update the p2p device MAC when a GO is started/stopped */ 1553 mvm->p2p_device_vif = vif; 1554 } 1555 1556 iwl_mvm_tcm_add_vif(mvm, vif); 1557 INIT_DELAYED_WORK(&mvmvif->csa_work, 1558 iwl_mvm_channel_switch_disconnect_wk); 1559 1560 if (vif->type == NL80211_IFTYPE_MONITOR) 1561 mvm->monitor_on = true; 1562 1563 iwl_mvm_vif_dbgfs_register(mvm, vif); 1564 1565 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1566 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1567 !mvm->csme_vif && mvm->mei_registered) { 1568 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1569 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1570 mvm->csme_vif = vif; 1571 } 1572 1573 goto out_unlock; 1574 1575 out_unbind: 1576 iwl_mvm_binding_remove_vif(mvm, vif); 1577 out_unref_phy: 1578 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1579 out_free_bf: 1580 if (mvm->bf_allowed_vif == mvmvif) { 1581 mvm->bf_allowed_vif = NULL; 1582 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1583 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1584 } 1585 out_remove_mac: 1586 mvmvif->phy_ctxt = NULL; 1587 iwl_mvm_mac_ctxt_remove(mvm, vif); 1588 out_release: 1589 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1590 mvm->vif_count--; 1591 out_unlock: 1592 mutex_unlock(&mvm->mutex); 1593 1594 return ret; 1595 } 1596 1597 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1598 struct ieee80211_vif *vif) 1599 { 1600 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1601 /* 1602 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1603 * We assume here that all the packets sent to the OFFCHANNEL 1604 * queue are sent in ROC session. 1605 */ 1606 flush_work(&mvm->roc_done_wk); 1607 } 1608 } 1609 1610 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1611 struct ieee80211_vif *vif) 1612 { 1613 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1614 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1615 struct iwl_probe_resp_data *probe_data; 1616 1617 iwl_mvm_prepare_mac_removal(mvm, vif); 1618 1619 if (!(vif->type == NL80211_IFTYPE_AP || 1620 vif->type == NL80211_IFTYPE_ADHOC)) 1621 iwl_mvm_tcm_rm_vif(mvm, vif); 1622 1623 mutex_lock(&mvm->mutex); 1624 1625 if (vif == mvm->csme_vif) { 1626 iwl_mei_set_netdev(NULL); 1627 mvm->csme_vif = NULL; 1628 } 1629 1630 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1631 lockdep_is_held(&mvm->mutex)); 1632 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1633 if (probe_data) 1634 kfree_rcu(probe_data, rcu_head); 1635 1636 if (mvm->bf_allowed_vif == mvmvif) { 1637 mvm->bf_allowed_vif = NULL; 1638 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1639 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1640 } 1641 1642 if (vif->bss_conf.ftm_responder) 1643 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1644 1645 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1646 1647 /* 1648 * For AP/GO interface, the tear down of the resources allocated to the 1649 * interface is be handled as part of the stop_ap flow. 1650 */ 1651 if (vif->type == NL80211_IFTYPE_AP || 1652 vif->type == NL80211_IFTYPE_ADHOC) { 1653 #ifdef CONFIG_NL80211_TESTMODE 1654 if (vif == mvm->noa_vif) { 1655 mvm->noa_vif = NULL; 1656 mvm->noa_duration = 0; 1657 } 1658 #endif 1659 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1660 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1661 goto out_release; 1662 } 1663 1664 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1665 mvm->p2p_device_vif = NULL; 1666 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1667 iwl_mvm_binding_remove_vif(mvm, vif); 1668 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1669 mvmvif->phy_ctxt = NULL; 1670 } 1671 1672 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1673 mvm->vif_count--; 1674 1675 iwl_mvm_power_update_mac(mvm); 1676 iwl_mvm_mac_ctxt_remove(mvm, vif); 1677 1678 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1679 1680 if (vif->type == NL80211_IFTYPE_MONITOR) 1681 mvm->monitor_on = false; 1682 1683 out_release: 1684 mutex_unlock(&mvm->mutex); 1685 } 1686 1687 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1688 { 1689 return 0; 1690 } 1691 1692 struct iwl_mvm_mc_iter_data { 1693 struct iwl_mvm *mvm; 1694 int port_id; 1695 }; 1696 1697 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1698 struct ieee80211_vif *vif) 1699 { 1700 struct iwl_mvm_mc_iter_data *data = _data; 1701 struct iwl_mvm *mvm = data->mvm; 1702 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1703 struct iwl_host_cmd hcmd = { 1704 .id = MCAST_FILTER_CMD, 1705 .flags = CMD_ASYNC, 1706 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1707 }; 1708 int ret, len; 1709 1710 /* if we don't have free ports, mcast frames will be dropped */ 1711 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1712 return; 1713 1714 if (vif->type != NL80211_IFTYPE_STATION || 1715 !vif->bss_conf.assoc) 1716 return; 1717 1718 cmd->port_id = data->port_id++; 1719 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1720 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1721 1722 hcmd.len[0] = len; 1723 hcmd.data[0] = cmd; 1724 1725 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1726 if (ret) 1727 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1728 } 1729 1730 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1731 { 1732 struct iwl_mvm_mc_iter_data iter_data = { 1733 .mvm = mvm, 1734 }; 1735 1736 lockdep_assert_held(&mvm->mutex); 1737 1738 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1739 return; 1740 1741 ieee80211_iterate_active_interfaces_atomic( 1742 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1743 iwl_mvm_mc_iface_iterator, &iter_data); 1744 } 1745 1746 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1747 struct netdev_hw_addr_list *mc_list) 1748 { 1749 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1750 struct iwl_mcast_filter_cmd *cmd; 1751 struct netdev_hw_addr *addr; 1752 int addr_count; 1753 bool pass_all; 1754 int len; 1755 1756 addr_count = netdev_hw_addr_list_count(mc_list); 1757 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1758 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1759 if (pass_all) 1760 addr_count = 0; 1761 1762 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1763 cmd = kzalloc(len, GFP_ATOMIC); 1764 if (!cmd) 1765 return 0; 1766 1767 if (pass_all) { 1768 cmd->pass_all = 1; 1769 return (u64)(unsigned long)cmd; 1770 } 1771 1772 netdev_hw_addr_list_for_each(addr, mc_list) { 1773 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1774 cmd->count, addr->addr); 1775 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1776 addr->addr, ETH_ALEN); 1777 cmd->count++; 1778 } 1779 1780 return (u64)(unsigned long)cmd; 1781 } 1782 1783 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1784 unsigned int changed_flags, 1785 unsigned int *total_flags, 1786 u64 multicast) 1787 { 1788 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1789 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1790 1791 mutex_lock(&mvm->mutex); 1792 1793 /* replace previous configuration */ 1794 kfree(mvm->mcast_filter_cmd); 1795 mvm->mcast_filter_cmd = cmd; 1796 1797 if (!cmd) 1798 goto out; 1799 1800 if (changed_flags & FIF_ALLMULTI) 1801 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1802 1803 if (cmd->pass_all) 1804 cmd->count = 0; 1805 1806 iwl_mvm_recalc_multicast(mvm); 1807 out: 1808 mutex_unlock(&mvm->mutex); 1809 *total_flags = 0; 1810 } 1811 1812 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1813 struct ieee80211_vif *vif, 1814 unsigned int filter_flags, 1815 unsigned int changed_flags) 1816 { 1817 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1818 1819 /* We support only filter for probe requests */ 1820 if (!(changed_flags & FIF_PROBE_REQ)) 1821 return; 1822 1823 /* Supported only for p2p client interfaces */ 1824 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1825 !vif->p2p) 1826 return; 1827 1828 mutex_lock(&mvm->mutex); 1829 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1830 mutex_unlock(&mvm->mutex); 1831 } 1832 1833 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1834 struct iwl_bcast_iter_data { 1835 struct iwl_mvm *mvm; 1836 struct iwl_bcast_filter_cmd *cmd; 1837 u8 current_filter; 1838 }; 1839 1840 static void 1841 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1842 const struct iwl_fw_bcast_filter *in_filter, 1843 struct iwl_fw_bcast_filter *out_filter) 1844 { 1845 struct iwl_fw_bcast_filter_attr *attr; 1846 int i; 1847 1848 memcpy(out_filter, in_filter, sizeof(*out_filter)); 1849 1850 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1851 attr = &out_filter->attrs[i]; 1852 1853 if (!attr->mask) 1854 break; 1855 1856 switch (attr->reserved1) { 1857 case cpu_to_le16(BC_FILTER_MAGIC_IP): 1858 if (vif->bss_conf.arp_addr_cnt != 1) { 1859 attr->mask = 0; 1860 continue; 1861 } 1862 1863 attr->val = vif->bss_conf.arp_addr_list[0]; 1864 break; 1865 case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1866 attr->val = *(__be32 *)&vif->addr[2]; 1867 break; 1868 default: 1869 break; 1870 } 1871 attr->reserved1 = 0; 1872 out_filter->num_attrs++; 1873 } 1874 } 1875 1876 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1877 struct ieee80211_vif *vif) 1878 { 1879 struct iwl_bcast_iter_data *data = _data; 1880 struct iwl_mvm *mvm = data->mvm; 1881 struct iwl_bcast_filter_cmd *cmd = data->cmd; 1882 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1883 struct iwl_fw_bcast_mac *bcast_mac; 1884 int i; 1885 1886 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1887 return; 1888 1889 bcast_mac = &cmd->macs[mvmvif->id]; 1890 1891 /* 1892 * enable filtering only for associated stations, but not for P2P 1893 * Clients 1894 */ 1895 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1896 !vif->bss_conf.assoc) 1897 return; 1898 1899 bcast_mac->default_discard = 1; 1900 1901 /* copy all configured filters */ 1902 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1903 /* 1904 * Make sure we don't exceed our filters limit. 1905 * if there is still a valid filter to be configured, 1906 * be on the safe side and just allow bcast for this mac. 1907 */ 1908 if (WARN_ON_ONCE(data->current_filter >= 1909 ARRAY_SIZE(cmd->filters))) { 1910 bcast_mac->default_discard = 0; 1911 bcast_mac->attached_filters = 0; 1912 break; 1913 } 1914 1915 iwl_mvm_set_bcast_filter(vif, 1916 &mvm->bcast_filters[i], 1917 &cmd->filters[data->current_filter]); 1918 1919 /* skip current filter if it contains no attributes */ 1920 if (!cmd->filters[data->current_filter].num_attrs) 1921 continue; 1922 1923 /* attach the filter to current mac */ 1924 bcast_mac->attached_filters |= 1925 cpu_to_le16(BIT(data->current_filter)); 1926 1927 data->current_filter++; 1928 } 1929 } 1930 1931 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1932 struct iwl_bcast_filter_cmd *cmd) 1933 { 1934 struct iwl_bcast_iter_data iter_data = { 1935 .mvm = mvm, 1936 .cmd = cmd, 1937 }; 1938 1939 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1940 return false; 1941 1942 memset(cmd, 0, sizeof(*cmd)); 1943 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1944 cmd->max_macs = ARRAY_SIZE(cmd->macs); 1945 1946 #ifdef CONFIG_IWLWIFI_DEBUGFS 1947 /* use debugfs filters/macs if override is configured */ 1948 if (mvm->dbgfs_bcast_filtering.override) { 1949 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1950 sizeof(cmd->filters)); 1951 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1952 sizeof(cmd->macs)); 1953 return true; 1954 } 1955 #endif 1956 1957 /* if no filters are configured, do nothing */ 1958 if (!mvm->bcast_filters) 1959 return false; 1960 1961 /* configure and attach these filters for each associated sta vif */ 1962 ieee80211_iterate_active_interfaces( 1963 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1964 iwl_mvm_bcast_filter_iterator, &iter_data); 1965 1966 return true; 1967 } 1968 1969 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1970 { 1971 struct iwl_bcast_filter_cmd cmd; 1972 1973 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1974 return 0; 1975 1976 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1977 return 0; 1978 1979 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1980 sizeof(cmd), &cmd); 1981 } 1982 #else 1983 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1984 { 1985 return 0; 1986 } 1987 #endif 1988 1989 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1990 struct ieee80211_vif *vif) 1991 { 1992 struct iwl_mu_group_mgmt_cmd cmd = {}; 1993 1994 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1995 WLAN_MEMBERSHIP_LEN); 1996 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1997 WLAN_USER_POSITION_LEN); 1998 1999 return iwl_mvm_send_cmd_pdu(mvm, 2000 WIDE_ID(DATA_PATH_GROUP, 2001 UPDATE_MU_GROUPS_CMD), 2002 0, sizeof(cmd), &cmd); 2003 } 2004 2005 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2006 struct ieee80211_vif *vif) 2007 { 2008 if (vif->mu_mimo_owner) { 2009 struct iwl_mu_group_mgmt_notif *notif = _data; 2010 2011 /* 2012 * MU-MIMO Group Id action frame is little endian. We treat 2013 * the data received from firmware as if it came from the 2014 * action frame, so no conversion is needed. 2015 */ 2016 ieee80211_update_mu_groups(vif, 2017 (u8 *)¬if->membership_status, 2018 (u8 *)¬if->user_position); 2019 } 2020 } 2021 2022 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2023 struct iwl_rx_cmd_buffer *rxb) 2024 { 2025 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2026 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2027 2028 ieee80211_iterate_active_interfaces_atomic( 2029 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2030 iwl_mvm_mu_mimo_iface_iterator, notif); 2031 } 2032 2033 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2034 { 2035 u8 byte_num = ppe_pos_bit / 8; 2036 u8 bit_num = ppe_pos_bit % 8; 2037 u8 residue_bits; 2038 u8 res; 2039 2040 if (bit_num <= 5) 2041 return (ppe[byte_num] >> bit_num) & 2042 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2043 2044 /* 2045 * If bit_num > 5, we have to combine bits with next byte. 2046 * Calculate how many bits we need to take from current byte (called 2047 * here "residue_bits"), and add them to bits from next byte. 2048 */ 2049 2050 residue_bits = 8 - bit_num; 2051 2052 res = (ppe[byte_num + 1] & 2053 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2054 residue_bits; 2055 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2056 2057 return res; 2058 } 2059 2060 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2061 struct ieee80211_vif *vif, u8 sta_id) 2062 { 2063 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2064 struct iwl_he_sta_context_cmd sta_ctxt_cmd = { 2065 .sta_id = sta_id, 2066 .tid_limit = IWL_MAX_TID_COUNT, 2067 .bss_color = vif->bss_conf.he_bss_color.color, 2068 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2069 .frame_time_rts_th = 2070 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2071 }; 2072 int size = fw_has_api(&mvm->fw->ucode_capa, 2073 IWL_UCODE_TLV_API_MBSSID_HE) ? 2074 sizeof(sta_ctxt_cmd) : 2075 sizeof(struct iwl_he_sta_context_cmd_v1); 2076 struct ieee80211_sta *sta; 2077 u32 flags; 2078 int i; 2079 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2080 struct ieee80211_chanctx_conf *chanctx_conf; 2081 const struct ieee80211_supported_band *sband; 2082 2083 rcu_read_lock(); 2084 2085 chanctx_conf = rcu_dereference(vif->chanctx_conf); 2086 if (WARN_ON(!chanctx_conf)) { 2087 rcu_read_unlock(); 2088 return; 2089 } 2090 2091 sband = mvm->hw->wiphy->bands[chanctx_conf->def.chan->band]; 2092 own_he_cap = ieee80211_get_he_iftype_cap(sband, 2093 ieee80211_vif_type_p2p(vif)); 2094 2095 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2096 if (IS_ERR_OR_NULL(sta)) { 2097 rcu_read_unlock(); 2098 WARN(1, "Can't find STA to configure HE\n"); 2099 return; 2100 } 2101 2102 if (!sta->he_cap.has_he) { 2103 rcu_read_unlock(); 2104 return; 2105 } 2106 2107 flags = 0; 2108 2109 /* Block 26-tone RU OFDMA transmissions */ 2110 if (mvmvif->he_ru_2mhz_block) 2111 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2112 2113 /* HTC flags */ 2114 if (sta->he_cap.he_cap_elem.mac_cap_info[0] & 2115 IEEE80211_HE_MAC_CAP0_HTC_HE) 2116 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2117 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & 2118 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2119 (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2120 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2121 u8 link_adap = 2122 ((sta->he_cap.he_cap_elem.mac_cap_info[2] & 2123 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2124 (sta->he_cap.he_cap_elem.mac_cap_info[1] & 2125 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2126 2127 if (link_adap == 2) 2128 sta_ctxt_cmd.htc_flags |= 2129 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2130 else if (link_adap == 3) 2131 sta_ctxt_cmd.htc_flags |= 2132 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2133 } 2134 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2135 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2136 if (sta->he_cap.he_cap_elem.mac_cap_info[3] & 2137 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2138 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2139 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2140 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2141 2142 /* 2143 * Initialize the PPE thresholds to "None" (7), as described in Table 2144 * 9-262ac of 80211.ax/D3.0. 2145 */ 2146 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext)); 2147 2148 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2149 if (sta->he_cap.he_cap_elem.phy_cap_info[6] & 2150 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2151 u8 nss = (sta->he_cap.ppe_thres[0] & 2152 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2153 u8 ru_index_bitmap = 2154 (sta->he_cap.ppe_thres[0] & 2155 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >> 2156 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS; 2157 u8 *ppe = &sta->he_cap.ppe_thres[0]; 2158 u8 ppe_pos_bit = 7; /* Starting after PPE header */ 2159 2160 /* 2161 * FW currently supports only nss == MAX_HE_SUPP_NSS 2162 * 2163 * If nss > MAX: we can ignore values we don't support 2164 * If nss < MAX: we can set zeros in other streams 2165 */ 2166 if (nss > MAX_HE_SUPP_NSS) { 2167 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2168 MAX_HE_SUPP_NSS); 2169 nss = MAX_HE_SUPP_NSS; 2170 } 2171 2172 for (i = 0; i < nss; i++) { 2173 u8 ru_index_tmp = ru_index_bitmap << 1; 2174 u8 bw; 2175 2176 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { 2177 ru_index_tmp >>= 1; 2178 if (!(ru_index_tmp & 1)) 2179 continue; 2180 2181 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] = 2182 iwl_mvm_he_get_ppe_val(ppe, 2183 ppe_pos_bit); 2184 ppe_pos_bit += 2185 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2186 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] = 2187 iwl_mvm_he_get_ppe_val(ppe, 2188 ppe_pos_bit); 2189 ppe_pos_bit += 2190 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2191 } 2192 } 2193 2194 flags |= STA_CTXT_HE_PACKET_EXT; 2195 } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] & 2196 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) != 2197 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) { 2198 int low_th = -1; 2199 int high_th = -1; 2200 2201 /* Take the PPE thresholds from the nominal padding info */ 2202 switch (sta->he_cap.he_cap_elem.phy_cap_info[9] & 2203 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { 2204 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: 2205 low_th = IWL_HE_PKT_EXT_NONE; 2206 high_th = IWL_HE_PKT_EXT_NONE; 2207 break; 2208 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: 2209 low_th = IWL_HE_PKT_EXT_BPSK; 2210 high_th = IWL_HE_PKT_EXT_NONE; 2211 break; 2212 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: 2213 low_th = IWL_HE_PKT_EXT_NONE; 2214 high_th = IWL_HE_PKT_EXT_BPSK; 2215 break; 2216 } 2217 2218 /* Set the PPE thresholds accordingly */ 2219 if (low_th >= 0 && high_th >= 0) { 2220 struct iwl_he_pkt_ext *pkt_ext = 2221 (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext; 2222 2223 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2224 u8 bw; 2225 2226 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; 2227 bw++) { 2228 pkt_ext->pkt_ext_qam_th[i][bw][0] = 2229 low_th; 2230 pkt_ext->pkt_ext_qam_th[i][bw][1] = 2231 high_th; 2232 } 2233 } 2234 2235 flags |= STA_CTXT_HE_PACKET_EXT; 2236 } 2237 } 2238 2239 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2240 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2241 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2242 2243 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2244 IEEE80211_HE_MAC_CAP2_ACK_EN) 2245 flags |= STA_CTXT_HE_ACK_ENABLED; 2246 2247 rcu_read_unlock(); 2248 2249 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2250 flags |= STA_CTXT_HE_MU_EDCA_CW; 2251 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2252 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2253 &mvmvif->queue_params[i].mu_edca_param_rec; 2254 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2255 2256 if (!mvmvif->queue_params[i].mu_edca) { 2257 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2258 break; 2259 } 2260 2261 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2262 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2263 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2264 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2265 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2266 cpu_to_le16(mu_edca->aifsn); 2267 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2268 cpu_to_le16(mu_edca->mu_edca_timer); 2269 } 2270 2271 2272 if (vif->bss_conf.uora_exists) { 2273 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2274 2275 sta_ctxt_cmd.rand_alloc_ecwmin = 2276 vif->bss_conf.uora_ocw_range & 0x7; 2277 sta_ctxt_cmd.rand_alloc_ecwmax = 2278 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2279 } 2280 2281 if (own_he_cap && !(own_he_cap->he_cap_elem.mac_cap_info[2] & 2282 IEEE80211_HE_MAC_CAP2_ACK_EN)) 2283 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2284 2285 if (vif->bss_conf.nontransmitted) { 2286 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2287 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2288 vif->bss_conf.transmitter_bssid); 2289 sta_ctxt_cmd.max_bssid_indicator = 2290 vif->bss_conf.bssid_indicator; 2291 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2292 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2293 sta_ctxt_cmd.profile_periodicity = 2294 vif->bss_conf.profile_periodicity; 2295 } 2296 2297 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2298 2299 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD, 2300 DATA_PATH_GROUP, 0), 2301 0, size, &sta_ctxt_cmd)) 2302 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2303 } 2304 2305 static void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, 2306 struct ieee80211_vif *vif, 2307 u32 duration_override) 2308 { 2309 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2310 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2311 2312 if (duration_override > duration) 2313 duration = duration_override; 2314 2315 /* Try really hard to protect the session and hear a beacon 2316 * The new session protection command allows us to protect the 2317 * session for a much longer time since the firmware will internally 2318 * create two events: a 300TU one with a very high priority that 2319 * won't be fragmented which should be enough for 99% of the cases, 2320 * and another one (which we configure here to be 900TU long) which 2321 * will have a slightly lower priority, but more importantly, can be 2322 * fragmented so that it'll allow other activities to run. 2323 */ 2324 if (fw_has_capa(&mvm->fw->ucode_capa, 2325 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2326 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2327 min_duration, false); 2328 else 2329 iwl_mvm_protect_session(mvm, vif, duration, 2330 min_duration, 500, false); 2331 } 2332 2333 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2334 struct ieee80211_vif *vif, 2335 struct ieee80211_bss_conf *bss_conf, 2336 u32 changes) 2337 { 2338 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2339 int ret; 2340 2341 /* 2342 * Re-calculate the tsf id, as the leader-follower relations depend 2343 * on the beacon interval, which was not known when the station 2344 * interface was added. 2345 */ 2346 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2347 if (vif->bss_conf.he_support && 2348 !iwlwifi_mod_params.disable_11ax) 2349 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2350 2351 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2352 } 2353 2354 /* Update MU EDCA params */ 2355 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2356 bss_conf->assoc && vif->bss_conf.he_support && 2357 !iwlwifi_mod_params.disable_11ax) 2358 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2359 2360 /* 2361 * If we're not associated yet, take the (new) BSSID before associating 2362 * so the firmware knows. If we're already associated, then use the old 2363 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2364 * branch for disassociation below. 2365 */ 2366 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2367 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2368 2369 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2370 if (ret) 2371 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2372 2373 /* after sending it once, adopt mac80211 data */ 2374 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2375 mvmvif->associated = bss_conf->assoc; 2376 2377 if (changes & BSS_CHANGED_ASSOC) { 2378 if (bss_conf->assoc) { 2379 /* clear statistics to get clean beacon counter */ 2380 iwl_mvm_request_statistics(mvm, true); 2381 memset(&mvmvif->beacon_stats, 0, 2382 sizeof(mvmvif->beacon_stats)); 2383 2384 /* add quota for this interface */ 2385 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2386 if (ret) { 2387 IWL_ERR(mvm, "failed to update quotas\n"); 2388 return; 2389 } 2390 2391 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2392 &mvm->status) && 2393 !fw_has_capa(&mvm->fw->ucode_capa, 2394 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2395 /* 2396 * If we're restarting then the firmware will 2397 * obviously have lost synchronisation with 2398 * the AP. It will attempt to synchronise by 2399 * itself, but we can make it more reliable by 2400 * scheduling a session protection time event. 2401 * 2402 * The firmware needs to receive a beacon to 2403 * catch up with synchronisation, use 110% of 2404 * the beacon interval. 2405 * 2406 * Set a large maximum delay to allow for more 2407 * than a single interface. 2408 * 2409 * For new firmware versions, rely on the 2410 * firmware. This is relevant for DCM scenarios 2411 * only anyway. 2412 */ 2413 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2414 iwl_mvm_protect_session(mvm, vif, dur, dur, 2415 5 * dur, false); 2416 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2417 &mvm->status) && 2418 !vif->bss_conf.dtim_period) { 2419 /* 2420 * If we're not restarting and still haven't 2421 * heard a beacon (dtim period unknown) then 2422 * make sure we still have enough minimum time 2423 * remaining in the time event, since the auth 2424 * might actually have taken quite a while 2425 * (especially for SAE) and so the remaining 2426 * time could be small without us having heard 2427 * a beacon yet. 2428 */ 2429 iwl_mvm_protect_assoc(mvm, vif, 0); 2430 } 2431 2432 iwl_mvm_sf_update(mvm, vif, false); 2433 iwl_mvm_power_vif_assoc(mvm, vif); 2434 if (vif->p2p) { 2435 iwl_mvm_update_smps(mvm, vif, 2436 IWL_MVM_SMPS_REQ_PROT, 2437 IEEE80211_SMPS_DYNAMIC); 2438 } 2439 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2440 iwl_mvm_mei_host_disassociated(mvm); 2441 /* 2442 * If update fails - SF might be running in associated 2443 * mode while disassociated - which is forbidden. 2444 */ 2445 ret = iwl_mvm_sf_update(mvm, vif, false); 2446 WARN_ONCE(ret && 2447 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2448 &mvm->status), 2449 "Failed to update SF upon disassociation\n"); 2450 2451 /* 2452 * If we get an assert during the connection (after the 2453 * station has been added, but before the vif is set 2454 * to associated), mac80211 will re-add the station and 2455 * then configure the vif. Since the vif is not 2456 * associated, we would remove the station here and 2457 * this would fail the recovery. 2458 */ 2459 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2460 &mvm->status)) { 2461 /* 2462 * Remove AP station now that 2463 * the MAC is unassoc 2464 */ 2465 ret = iwl_mvm_rm_sta_id(mvm, vif, 2466 mvmvif->ap_sta_id); 2467 if (ret) 2468 IWL_ERR(mvm, 2469 "failed to remove AP station\n"); 2470 2471 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2472 } 2473 2474 /* remove quota for this interface */ 2475 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2476 if (ret) 2477 IWL_ERR(mvm, "failed to update quotas\n"); 2478 2479 /* this will take the cleared BSSID from bss_conf */ 2480 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2481 if (ret) 2482 IWL_ERR(mvm, 2483 "failed to update MAC %pM (clear after unassoc)\n", 2484 vif->addr); 2485 } 2486 2487 /* 2488 * The firmware tracks the MU-MIMO group on its own. 2489 * However, on HW restart we should restore this data. 2490 */ 2491 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2492 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2493 ret = iwl_mvm_update_mu_groups(mvm, vif); 2494 if (ret) 2495 IWL_ERR(mvm, 2496 "failed to update VHT MU_MIMO groups\n"); 2497 } 2498 2499 iwl_mvm_recalc_multicast(mvm); 2500 iwl_mvm_configure_bcast_filter(mvm); 2501 2502 /* reset rssi values */ 2503 mvmvif->bf_data.ave_beacon_signal = 0; 2504 2505 iwl_mvm_bt_coex_vif_change(mvm); 2506 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2507 IEEE80211_SMPS_AUTOMATIC); 2508 if (fw_has_capa(&mvm->fw->ucode_capa, 2509 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2510 iwl_mvm_config_scan(mvm); 2511 } 2512 2513 if (changes & BSS_CHANGED_BEACON_INFO) { 2514 /* 2515 * We received a beacon from the associated AP so 2516 * remove the session protection. 2517 * A firmware with the new API will remove it automatically. 2518 */ 2519 if (!fw_has_capa(&mvm->fw->ucode_capa, 2520 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2521 iwl_mvm_stop_session_protection(mvm, vif); 2522 2523 iwl_mvm_sf_update(mvm, vif, false); 2524 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2525 } 2526 2527 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2528 /* 2529 * Send power command on every beacon change, 2530 * because we may have not enabled beacon abort yet. 2531 */ 2532 BSS_CHANGED_BEACON_INFO)) { 2533 ret = iwl_mvm_power_update_mac(mvm); 2534 if (ret) 2535 IWL_ERR(mvm, "failed to update power mode\n"); 2536 } 2537 2538 if (changes & BSS_CHANGED_CQM) { 2539 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2540 /* reset cqm events tracking */ 2541 mvmvif->bf_data.last_cqm_event = 0; 2542 if (mvmvif->bf_data.bf_enabled) { 2543 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2544 if (ret) 2545 IWL_ERR(mvm, 2546 "failed to update CQM thresholds\n"); 2547 } 2548 } 2549 2550 if (changes & BSS_CHANGED_ARP_FILTER) { 2551 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 2552 iwl_mvm_configure_bcast_filter(mvm); 2553 } 2554 2555 if (changes & BSS_CHANGED_BANDWIDTH) 2556 iwl_mvm_apply_fw_smps_request(vif); 2557 } 2558 2559 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2560 struct ieee80211_vif *vif) 2561 { 2562 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2563 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2564 int ret, i; 2565 2566 mutex_lock(&mvm->mutex); 2567 2568 /* Send the beacon template */ 2569 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2570 if (ret) 2571 goto out_unlock; 2572 2573 /* 2574 * Re-calculate the tsf id, as the leader-follower relations depend on 2575 * the beacon interval, which was not known when the AP interface 2576 * was added. 2577 */ 2578 if (vif->type == NL80211_IFTYPE_AP) 2579 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2580 2581 mvmvif->ap_assoc_sta_count = 0; 2582 2583 /* Add the mac context */ 2584 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2585 if (ret) 2586 goto out_unlock; 2587 2588 /* Perform the binding */ 2589 ret = iwl_mvm_binding_add_vif(mvm, vif); 2590 if (ret) 2591 goto out_remove; 2592 2593 /* 2594 * This is not very nice, but the simplest: 2595 * For older FWs adding the mcast sta before the bcast station may 2596 * cause assert 0x2b00. 2597 * This is fixed in later FW so make the order of removal depend on 2598 * the TLV 2599 */ 2600 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2601 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2602 if (ret) 2603 goto out_unbind; 2604 /* 2605 * Send the bcast station. At this stage the TBTT and DTIM time 2606 * events are added and applied to the scheduler 2607 */ 2608 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2609 if (ret) { 2610 iwl_mvm_rm_mcast_sta(mvm, vif); 2611 goto out_unbind; 2612 } 2613 } else { 2614 /* 2615 * Send the bcast station. At this stage the TBTT and DTIM time 2616 * events are added and applied to the scheduler 2617 */ 2618 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2619 if (ret) 2620 goto out_unbind; 2621 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2622 if (ret) { 2623 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2624 goto out_unbind; 2625 } 2626 } 2627 2628 /* must be set before quota calculations */ 2629 mvmvif->ap_ibss_active = true; 2630 2631 /* send all the early keys to the device now */ 2632 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2633 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2634 2635 if (!key) 2636 continue; 2637 2638 mvmvif->ap_early_keys[i] = NULL; 2639 2640 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2641 if (ret) 2642 goto out_quota_failed; 2643 } 2644 2645 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2646 iwl_mvm_vif_set_low_latency(mvmvif, true, 2647 LOW_LATENCY_VIF_TYPE); 2648 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2649 } 2650 2651 /* power updated needs to be done before quotas */ 2652 iwl_mvm_power_update_mac(mvm); 2653 2654 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2655 if (ret) 2656 goto out_quota_failed; 2657 2658 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2659 if (vif->p2p && mvm->p2p_device_vif) 2660 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2661 2662 iwl_mvm_bt_coex_vif_change(mvm); 2663 2664 /* we don't support TDLS during DCM */ 2665 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2666 iwl_mvm_teardown_tdls_peers(mvm); 2667 2668 iwl_mvm_ftm_restart_responder(mvm, vif); 2669 2670 goto out_unlock; 2671 2672 out_quota_failed: 2673 iwl_mvm_power_update_mac(mvm); 2674 mvmvif->ap_ibss_active = false; 2675 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2676 iwl_mvm_rm_mcast_sta(mvm, vif); 2677 out_unbind: 2678 iwl_mvm_binding_remove_vif(mvm, vif); 2679 out_remove: 2680 iwl_mvm_mac_ctxt_remove(mvm, vif); 2681 out_unlock: 2682 mutex_unlock(&mvm->mutex); 2683 return ret; 2684 } 2685 2686 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2687 struct ieee80211_vif *vif) 2688 { 2689 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2690 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2691 2692 iwl_mvm_prepare_mac_removal(mvm, vif); 2693 2694 mutex_lock(&mvm->mutex); 2695 2696 /* Handle AP stop while in CSA */ 2697 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2698 iwl_mvm_remove_time_event(mvm, mvmvif, 2699 &mvmvif->time_event_data); 2700 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2701 mvmvif->csa_countdown = false; 2702 } 2703 2704 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2705 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2706 mvm->csa_tx_block_bcn_timeout = 0; 2707 } 2708 2709 mvmvif->ap_ibss_active = false; 2710 mvm->ap_last_beacon_gp2 = 0; 2711 2712 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2713 iwl_mvm_vif_set_low_latency(mvmvif, false, 2714 LOW_LATENCY_VIF_TYPE); 2715 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2716 } 2717 2718 iwl_mvm_bt_coex_vif_change(mvm); 2719 2720 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2721 if (vif->p2p && mvm->p2p_device_vif) 2722 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2723 2724 iwl_mvm_update_quotas(mvm, false, NULL); 2725 2726 iwl_mvm_ftm_responder_clear(mvm, vif); 2727 2728 /* 2729 * This is not very nice, but the simplest: 2730 * For older FWs removing the mcast sta before the bcast station may 2731 * cause assert 0x2b00. 2732 * This is fixed in later FW (which will stop beaconing when removing 2733 * bcast station). 2734 * So make the order of removal depend on the TLV 2735 */ 2736 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2737 iwl_mvm_rm_mcast_sta(mvm, vif); 2738 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2739 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2740 iwl_mvm_rm_mcast_sta(mvm, vif); 2741 iwl_mvm_binding_remove_vif(mvm, vif); 2742 2743 iwl_mvm_power_update_mac(mvm); 2744 2745 iwl_mvm_mac_ctxt_remove(mvm, vif); 2746 2747 mutex_unlock(&mvm->mutex); 2748 } 2749 2750 static void 2751 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2752 struct ieee80211_vif *vif, 2753 struct ieee80211_bss_conf *bss_conf, 2754 u32 changes) 2755 { 2756 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2757 2758 /* Changes will be applied when the AP/IBSS is started */ 2759 if (!mvmvif->ap_ibss_active) 2760 return; 2761 2762 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2763 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2764 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2765 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2766 2767 /* Need to send a new beacon template to the FW */ 2768 if (changes & BSS_CHANGED_BEACON && 2769 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2770 IWL_WARN(mvm, "Failed updating beacon data\n"); 2771 2772 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2773 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2774 2775 if (ret) 2776 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2777 ret); 2778 } 2779 2780 } 2781 2782 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2783 struct ieee80211_vif *vif, 2784 struct ieee80211_bss_conf *bss_conf, 2785 u32 changes) 2786 { 2787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2788 2789 mutex_lock(&mvm->mutex); 2790 2791 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2792 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2793 2794 switch (vif->type) { 2795 case NL80211_IFTYPE_STATION: 2796 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2797 break; 2798 case NL80211_IFTYPE_AP: 2799 case NL80211_IFTYPE_ADHOC: 2800 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2801 break; 2802 case NL80211_IFTYPE_MONITOR: 2803 if (changes & BSS_CHANGED_MU_GROUPS) 2804 iwl_mvm_update_mu_groups(mvm, vif); 2805 break; 2806 default: 2807 /* shouldn't happen */ 2808 WARN_ON_ONCE(1); 2809 } 2810 2811 if (changes & BSS_CHANGED_TXPOWER) { 2812 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 2813 bss_conf->txpower); 2814 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2815 } 2816 2817 mutex_unlock(&mvm->mutex); 2818 } 2819 2820 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2821 struct ieee80211_vif *vif, 2822 struct ieee80211_scan_request *hw_req) 2823 { 2824 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2825 int ret; 2826 2827 if (hw_req->req.n_channels == 0 || 2828 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2829 return -EINVAL; 2830 2831 mutex_lock(&mvm->mutex); 2832 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2833 mutex_unlock(&mvm->mutex); 2834 2835 return ret; 2836 } 2837 2838 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2839 struct ieee80211_vif *vif) 2840 { 2841 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2842 2843 mutex_lock(&mvm->mutex); 2844 2845 /* Due to a race condition, it's possible that mac80211 asks 2846 * us to stop a hw_scan when it's already stopped. This can 2847 * happen, for instance, if we stopped the scan ourselves, 2848 * called ieee80211_scan_completed() and the userspace called 2849 * cancel scan scan before ieee80211_scan_work() could run. 2850 * To handle that, simply return if the scan is not running. 2851 */ 2852 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2853 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2854 2855 mutex_unlock(&mvm->mutex); 2856 } 2857 2858 static void 2859 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2860 struct ieee80211_sta *sta, u16 tids, 2861 int num_frames, 2862 enum ieee80211_frame_release_type reason, 2863 bool more_data) 2864 { 2865 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2866 2867 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2868 2869 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2870 tids, more_data, false); 2871 } 2872 2873 static void 2874 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2875 struct ieee80211_sta *sta, u16 tids, 2876 int num_frames, 2877 enum ieee80211_frame_release_type reason, 2878 bool more_data) 2879 { 2880 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2881 2882 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2883 2884 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2885 tids, more_data, true); 2886 } 2887 2888 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2889 enum sta_notify_cmd cmd, 2890 struct ieee80211_sta *sta) 2891 { 2892 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2893 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2894 unsigned long txqs = 0, tids = 0; 2895 int tid; 2896 2897 /* 2898 * If we have TVQM then we get too high queue numbers - luckily 2899 * we really shouldn't get here with that because such hardware 2900 * should have firmware supporting buffer station offload. 2901 */ 2902 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2903 return; 2904 2905 spin_lock_bh(&mvmsta->lock); 2906 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2907 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2908 2909 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2910 continue; 2911 2912 __set_bit(tid_data->txq_id, &txqs); 2913 2914 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2915 continue; 2916 2917 __set_bit(tid, &tids); 2918 } 2919 2920 switch (cmd) { 2921 case STA_NOTIFY_SLEEP: 2922 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2923 ieee80211_sta_set_buffered(sta, tid, true); 2924 2925 if (txqs) 2926 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2927 /* 2928 * The fw updates the STA to be asleep. Tx packets on the Tx 2929 * queues to this station will not be transmitted. The fw will 2930 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2931 */ 2932 break; 2933 case STA_NOTIFY_AWAKE: 2934 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2935 break; 2936 2937 if (txqs) 2938 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2939 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2940 break; 2941 default: 2942 break; 2943 } 2944 spin_unlock_bh(&mvmsta->lock); 2945 } 2946 2947 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2948 struct ieee80211_vif *vif, 2949 enum sta_notify_cmd cmd, 2950 struct ieee80211_sta *sta) 2951 { 2952 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2953 } 2954 2955 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2956 { 2957 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2958 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2959 struct ieee80211_sta *sta; 2960 struct iwl_mvm_sta *mvmsta; 2961 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2962 2963 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 2964 return; 2965 2966 rcu_read_lock(); 2967 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2968 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2969 rcu_read_unlock(); 2970 return; 2971 } 2972 2973 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2974 2975 if (!mvmsta->vif || 2976 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2977 rcu_read_unlock(); 2978 return; 2979 } 2980 2981 if (mvmsta->sleeping != sleeping) { 2982 mvmsta->sleeping = sleeping; 2983 __iwl_mvm_mac_sta_notify(mvm->hw, 2984 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2985 sta); 2986 ieee80211_sta_ps_transition(sta, sleeping); 2987 } 2988 2989 if (sleeping) { 2990 switch (notif->type) { 2991 case IWL_MVM_PM_EVENT_AWAKE: 2992 case IWL_MVM_PM_EVENT_ASLEEP: 2993 break; 2994 case IWL_MVM_PM_EVENT_UAPSD: 2995 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2996 break; 2997 case IWL_MVM_PM_EVENT_PS_POLL: 2998 ieee80211_sta_pspoll(sta); 2999 break; 3000 default: 3001 break; 3002 } 3003 } 3004 3005 rcu_read_unlock(); 3006 } 3007 3008 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3009 struct ieee80211_vif *vif, 3010 struct ieee80211_sta *sta) 3011 { 3012 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3013 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3014 3015 /* 3016 * This is called before mac80211 does RCU synchronisation, 3017 * so here we already invalidate our internal RCU-protected 3018 * station pointer. The rest of the code will thus no longer 3019 * be able to find the station this way, and we don't rely 3020 * on further RCU synchronisation after the sta_state() 3021 * callback deleted the station. 3022 */ 3023 mutex_lock(&mvm->mutex); 3024 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 3025 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 3026 ERR_PTR(-ENOENT)); 3027 3028 mutex_unlock(&mvm->mutex); 3029 } 3030 3031 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3032 const u8 *bssid) 3033 { 3034 int i; 3035 3036 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3037 struct iwl_mvm_tcm_mac *mdata; 3038 3039 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3040 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3041 mdata->opened_rx_ba_sessions = false; 3042 } 3043 3044 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3045 return; 3046 3047 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3048 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3049 return; 3050 } 3051 3052 if (!vif->p2p && 3053 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3054 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3055 return; 3056 } 3057 3058 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3059 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3060 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3061 return; 3062 } 3063 } 3064 3065 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3066 } 3067 3068 static void 3069 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3070 struct ieee80211_vif *vif, u8 *peer_addr, 3071 enum nl80211_tdls_operation action) 3072 { 3073 struct iwl_fw_dbg_trigger_tlv *trig; 3074 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3075 3076 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3077 FW_DBG_TRIGGER_TDLS); 3078 if (!trig) 3079 return; 3080 3081 tdls_trig = (void *)trig->data; 3082 3083 if (!(tdls_trig->action_bitmap & BIT(action))) 3084 return; 3085 3086 if (tdls_trig->peer_mode && 3087 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3088 return; 3089 3090 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3091 "TDLS event occurred, peer %pM, action %d", 3092 peer_addr, action); 3093 } 3094 3095 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3096 bool tolerated; 3097 }; 3098 3099 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3100 struct cfg80211_bss *bss, 3101 void *_data) 3102 { 3103 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3104 const struct cfg80211_bss_ies *ies; 3105 const struct element *elem; 3106 3107 rcu_read_lock(); 3108 ies = rcu_dereference(bss->ies); 3109 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3110 ies->len); 3111 3112 if (!elem || elem->datalen < 10 || 3113 !(elem->data[10] & 3114 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3115 data->tolerated = false; 3116 } 3117 rcu_read_unlock(); 3118 } 3119 3120 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3121 struct ieee80211_vif *vif) 3122 { 3123 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3124 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3125 .tolerated = true, 3126 }; 3127 3128 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3129 mvmvif->he_ru_2mhz_block = false; 3130 return; 3131 } 3132 3133 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3134 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3135 &iter_data); 3136 3137 /* 3138 * If there is at least one AP on radar channel that cannot 3139 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3140 */ 3141 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3142 } 3143 3144 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3145 struct ieee80211_vif *vif) 3146 { 3147 struct ieee80211_supported_band *sband; 3148 const struct ieee80211_sta_he_cap *he_cap; 3149 3150 if (vif->type != NL80211_IFTYPE_STATION) 3151 return; 3152 3153 if (!mvm->cca_40mhz_workaround) 3154 return; 3155 3156 /* decrement and check that we reached zero */ 3157 mvm->cca_40mhz_workaround--; 3158 if (mvm->cca_40mhz_workaround) 3159 return; 3160 3161 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3162 3163 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3164 3165 he_cap = ieee80211_get_he_iftype_cap(sband, 3166 ieee80211_vif_type_p2p(vif)); 3167 3168 if (he_cap) { 3169 /* we know that ours is writable */ 3170 struct ieee80211_sta_he_cap *he = (void *)he_cap; 3171 3172 he->he_cap_elem.phy_cap_info[0] |= 3173 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3174 } 3175 } 3176 3177 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3178 struct ieee80211_vif *vif, 3179 struct iwl_mvm_sta *mvm_sta) 3180 { 3181 #if IS_ENABLED(CONFIG_IWLMEI) 3182 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3183 struct iwl_mei_conn_info conn_info = { 3184 .ssid_len = vif->bss_conf.ssid_len, 3185 .channel = vif->bss_conf.chandef.chan->hw_value, 3186 }; 3187 3188 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3189 return; 3190 3191 if (!mvm->mei_registered) 3192 return; 3193 3194 switch (mvm_sta->pairwise_cipher) { 3195 case WLAN_CIPHER_SUITE_CCMP: 3196 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3197 break; 3198 case WLAN_CIPHER_SUITE_GCMP: 3199 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3200 break; 3201 case WLAN_CIPHER_SUITE_GCMP_256: 3202 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3203 break; 3204 case 0: 3205 /* open profile */ 3206 break; 3207 default: 3208 /* cipher not supported, don't send anything to iwlmei */ 3209 return; 3210 } 3211 3212 switch (mvmvif->rekey_data.akm) { 3213 case WLAN_AKM_SUITE_SAE & 0xff: 3214 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3215 break; 3216 case WLAN_AKM_SUITE_PSK & 0xff: 3217 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3218 break; 3219 case WLAN_AKM_SUITE_8021X & 0xff: 3220 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3221 break; 3222 case 0: 3223 /* open profile */ 3224 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3225 break; 3226 default: 3227 /* auth method / AKM not supported */ 3228 /* TODO: All the FT vesions of these? */ 3229 return; 3230 } 3231 3232 memcpy(conn_info.ssid, vif->bss_conf.ssid, vif->bss_conf.ssid_len); 3233 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3234 3235 /* TODO: add support for collocated AP data */ 3236 iwl_mei_host_associated(&conn_info, NULL); 3237 #endif 3238 } 3239 3240 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3241 struct ieee80211_vif *vif, 3242 struct ieee80211_sta *sta, 3243 enum ieee80211_sta_state old_state, 3244 enum ieee80211_sta_state new_state) 3245 { 3246 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3247 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3248 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3249 int ret; 3250 3251 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3252 sta->addr, old_state, new_state); 3253 3254 /* this would be a mac80211 bug ... but don't crash */ 3255 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3256 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) ? 0 : -EINVAL; 3257 3258 /* 3259 * If we are in a STA removal flow and in DQA mode: 3260 * 3261 * This is after the sync_rcu part, so the queues have already been 3262 * flushed. No more TXs on their way in mac80211's path, and no more in 3263 * the queues. 3264 * Also, we won't be getting any new TX frames for this station. 3265 * What we might have are deferred TX frames that need to be taken care 3266 * of. 3267 * 3268 * Drop any still-queued deferred-frame before removing the STA, and 3269 * make sure the worker is no longer handling frames for this STA. 3270 */ 3271 if (old_state == IEEE80211_STA_NONE && 3272 new_state == IEEE80211_STA_NOTEXIST) { 3273 flush_work(&mvm->add_stream_wk); 3274 3275 /* 3276 * No need to make sure deferred TX indication is off since the 3277 * worker will already remove it if it was on 3278 */ 3279 3280 /* 3281 * Additionally, reset the 40 MHz capability if we disconnected 3282 * from the AP now. 3283 */ 3284 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3285 } 3286 3287 mutex_lock(&mvm->mutex); 3288 /* track whether or not the station is associated */ 3289 mvm_sta->sta_state = new_state; 3290 3291 if (old_state == IEEE80211_STA_NOTEXIST && 3292 new_state == IEEE80211_STA_NONE) { 3293 /* 3294 * Firmware bug - it'll crash if the beacon interval is less 3295 * than 16. We can't avoid connecting at all, so refuse the 3296 * station state change, this will cause mac80211 to abandon 3297 * attempts to connect to this AP, and eventually wpa_s will 3298 * blocklist the AP... 3299 */ 3300 if (vif->type == NL80211_IFTYPE_STATION && 3301 vif->bss_conf.beacon_int < 16) { 3302 IWL_ERR(mvm, 3303 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3304 sta->addr, vif->bss_conf.beacon_int); 3305 ret = -EINVAL; 3306 goto out_unlock; 3307 } 3308 3309 if (vif->type == NL80211_IFTYPE_STATION) 3310 vif->bss_conf.he_support = sta->he_cap.has_he; 3311 3312 if (sta->tdls && 3313 (vif->p2p || 3314 iwl_mvm_tdls_sta_count(mvm, NULL) == 3315 IWL_MVM_TDLS_STA_COUNT || 3316 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3317 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3318 ret = -EBUSY; 3319 goto out_unlock; 3320 } 3321 3322 ret = iwl_mvm_add_sta(mvm, vif, sta); 3323 if (sta->tdls && ret == 0) { 3324 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3325 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3326 NL80211_TDLS_SETUP); 3327 } 3328 3329 sta->max_rc_amsdu_len = 1; 3330 } else if (old_state == IEEE80211_STA_NONE && 3331 new_state == IEEE80211_STA_AUTH) { 3332 /* 3333 * EBS may be disabled due to previous failures reported by FW. 3334 * Reset EBS status here assuming environment has been changed. 3335 */ 3336 mvm->last_ebs_successful = true; 3337 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3338 ret = 0; 3339 } else if (old_state == IEEE80211_STA_AUTH && 3340 new_state == IEEE80211_STA_ASSOC) { 3341 if (vif->type == NL80211_IFTYPE_AP) { 3342 vif->bss_conf.he_support = sta->he_cap.has_he; 3343 mvmvif->ap_assoc_sta_count++; 3344 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3345 if (vif->bss_conf.he_support && 3346 !iwlwifi_mod_params.disable_11ax) 3347 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3348 } else if (vif->type == NL80211_IFTYPE_STATION) { 3349 vif->bss_conf.he_support = sta->he_cap.has_he; 3350 3351 mvmvif->he_ru_2mhz_block = false; 3352 if (sta->he_cap.has_he) 3353 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3354 3355 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3356 } 3357 3358 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3359 false); 3360 ret = iwl_mvm_update_sta(mvm, vif, sta); 3361 } else if (old_state == IEEE80211_STA_ASSOC && 3362 new_state == IEEE80211_STA_AUTHORIZED) { 3363 ret = 0; 3364 3365 /* we don't support TDLS during DCM */ 3366 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3367 iwl_mvm_teardown_tdls_peers(mvm); 3368 3369 if (sta->tdls) { 3370 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3371 NL80211_TDLS_ENABLE_LINK); 3372 } else { 3373 /* enable beacon filtering */ 3374 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3375 3376 mvmvif->authorized = 1; 3377 3378 /* 3379 * Now that the station is authorized, i.e., keys were already 3380 * installed, need to indicate to the FW that 3381 * multicast data frames can be forwarded to the driver 3382 */ 3383 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3384 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3385 } 3386 3387 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3388 true); 3389 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3390 new_state == IEEE80211_STA_ASSOC) { 3391 if (!sta->tdls) { 3392 /* Multicast data frames are no longer allowed */ 3393 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3394 3395 /* 3396 * Set this after the above iwl_mvm_mac_ctxt_changed() 3397 * to avoid sending high prio again for a little time. 3398 */ 3399 mvmvif->authorized = 0; 3400 3401 /* disable beacon filtering */ 3402 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3403 WARN_ON(ret && 3404 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3405 &mvm->status)); 3406 } 3407 ret = 0; 3408 } else if (old_state == IEEE80211_STA_ASSOC && 3409 new_state == IEEE80211_STA_AUTH) { 3410 if (vif->type == NL80211_IFTYPE_AP) { 3411 mvmvif->ap_assoc_sta_count--; 3412 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3413 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { 3414 /* remove session protection if still running */ 3415 iwl_mvm_stop_session_protection(mvm, vif); 3416 } 3417 ret = 0; 3418 } else if (old_state == IEEE80211_STA_AUTH && 3419 new_state == IEEE80211_STA_NONE) { 3420 ret = 0; 3421 } else if (old_state == IEEE80211_STA_NONE && 3422 new_state == IEEE80211_STA_NOTEXIST) { 3423 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3424 if (sta->tdls) { 3425 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3426 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3427 NL80211_TDLS_DISABLE_LINK); 3428 } 3429 3430 if (unlikely(ret && 3431 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3432 &mvm->status))) 3433 ret = 0; 3434 } else { 3435 ret = -EIO; 3436 } 3437 out_unlock: 3438 mutex_unlock(&mvm->mutex); 3439 3440 if (sta->tdls && ret == 0) { 3441 if (old_state == IEEE80211_STA_NOTEXIST && 3442 new_state == IEEE80211_STA_NONE) 3443 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3444 else if (old_state == IEEE80211_STA_NONE && 3445 new_state == IEEE80211_STA_NOTEXIST) 3446 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3447 } 3448 3449 return ret; 3450 } 3451 3452 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3453 { 3454 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3455 3456 mvm->rts_threshold = value; 3457 3458 return 0; 3459 } 3460 3461 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3462 struct ieee80211_vif *vif, 3463 struct ieee80211_sta *sta, u32 changed) 3464 { 3465 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3466 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3467 3468 if (changed & (IEEE80211_RC_BW_CHANGED | 3469 IEEE80211_RC_SUPP_RATES_CHANGED | 3470 IEEE80211_RC_NSS_CHANGED)) 3471 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3472 true); 3473 3474 if (vif->type == NL80211_IFTYPE_STATION && 3475 changed & IEEE80211_RC_NSS_CHANGED) 3476 iwl_mvm_sf_update(mvm, vif, false); 3477 } 3478 3479 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3480 struct ieee80211_vif *vif, u16 ac, 3481 const struct ieee80211_tx_queue_params *params) 3482 { 3483 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3484 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3485 3486 mvmvif->queue_params[ac] = *params; 3487 3488 /* 3489 * No need to update right away, we'll get BSS_CHANGED_QOS 3490 * The exception is P2P_DEVICE interface which needs immediate update. 3491 */ 3492 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3493 int ret; 3494 3495 mutex_lock(&mvm->mutex); 3496 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3497 mutex_unlock(&mvm->mutex); 3498 return ret; 3499 } 3500 return 0; 3501 } 3502 3503 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3504 struct ieee80211_vif *vif, 3505 struct ieee80211_prep_tx_info *info) 3506 { 3507 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3508 3509 mutex_lock(&mvm->mutex); 3510 iwl_mvm_protect_assoc(mvm, vif, info->duration); 3511 mutex_unlock(&mvm->mutex); 3512 } 3513 3514 static void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 3515 struct ieee80211_vif *vif, 3516 struct ieee80211_prep_tx_info *info) 3517 { 3518 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3519 3520 /* for successful cases (auth/assoc), don't cancel session protection */ 3521 if (info->success) 3522 return; 3523 3524 mutex_lock(&mvm->mutex); 3525 iwl_mvm_stop_session_protection(mvm, vif); 3526 mutex_unlock(&mvm->mutex); 3527 } 3528 3529 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3530 struct ieee80211_vif *vif, 3531 struct cfg80211_sched_scan_request *req, 3532 struct ieee80211_scan_ies *ies) 3533 { 3534 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3535 3536 int ret; 3537 3538 mutex_lock(&mvm->mutex); 3539 3540 if (!vif->bss_conf.idle) { 3541 ret = -EBUSY; 3542 goto out; 3543 } 3544 3545 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3546 3547 out: 3548 mutex_unlock(&mvm->mutex); 3549 return ret; 3550 } 3551 3552 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3553 struct ieee80211_vif *vif) 3554 { 3555 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3556 int ret; 3557 3558 mutex_lock(&mvm->mutex); 3559 3560 /* Due to a race condition, it's possible that mac80211 asks 3561 * us to stop a sched_scan when it's already stopped. This 3562 * can happen, for instance, if we stopped the scan ourselves, 3563 * called ieee80211_sched_scan_stopped() and the userspace called 3564 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3565 * could run. To handle this, simply return if the scan is 3566 * not running. 3567 */ 3568 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3569 mutex_unlock(&mvm->mutex); 3570 return 0; 3571 } 3572 3573 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3574 mutex_unlock(&mvm->mutex); 3575 iwl_mvm_wait_for_async_handlers(mvm); 3576 3577 return ret; 3578 } 3579 3580 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3581 enum set_key_cmd cmd, 3582 struct ieee80211_vif *vif, 3583 struct ieee80211_sta *sta, 3584 struct ieee80211_key_conf *key) 3585 { 3586 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3587 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3588 struct iwl_mvm_sta *mvmsta; 3589 struct iwl_mvm_key_pn *ptk_pn; 3590 int keyidx = key->keyidx; 3591 int ret, i; 3592 u8 key_offset; 3593 3594 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3595 3596 switch (key->cipher) { 3597 case WLAN_CIPHER_SUITE_TKIP: 3598 if (!mvm->trans->trans_cfg->gen2) { 3599 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3600 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3601 } else if (vif->type == NL80211_IFTYPE_STATION) { 3602 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3603 } else { 3604 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3605 return -EOPNOTSUPP; 3606 } 3607 break; 3608 case WLAN_CIPHER_SUITE_CCMP: 3609 case WLAN_CIPHER_SUITE_GCMP: 3610 case WLAN_CIPHER_SUITE_GCMP_256: 3611 if (!iwl_mvm_has_new_tx_api(mvm)) 3612 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3613 break; 3614 case WLAN_CIPHER_SUITE_AES_CMAC: 3615 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3616 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3617 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3618 break; 3619 case WLAN_CIPHER_SUITE_WEP40: 3620 case WLAN_CIPHER_SUITE_WEP104: 3621 if (vif->type == NL80211_IFTYPE_STATION) 3622 break; 3623 if (iwl_mvm_has_new_tx_api(mvm)) 3624 return -EOPNOTSUPP; 3625 /* support HW crypto on TX */ 3626 return 0; 3627 default: 3628 /* currently FW supports only one optional cipher scheme */ 3629 if (hw->n_cipher_schemes && 3630 hw->cipher_schemes->cipher == key->cipher) 3631 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3632 else 3633 return -EOPNOTSUPP; 3634 } 3635 3636 switch (cmd) { 3637 case SET_KEY: 3638 if (keyidx == 6 || keyidx == 7) 3639 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 3640 key); 3641 3642 if ((vif->type == NL80211_IFTYPE_ADHOC || 3643 vif->type == NL80211_IFTYPE_AP) && !sta) { 3644 /* 3645 * GTK on AP interface is a TX-only key, return 0; 3646 * on IBSS they're per-station and because we're lazy 3647 * we don't support them for RX, so do the same. 3648 * CMAC/GMAC in AP/IBSS modes must be done in software. 3649 */ 3650 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3651 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3652 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3653 ret = -EOPNOTSUPP; 3654 break; 3655 } 3656 3657 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3658 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3659 !iwl_mvm_has_new_tx_api(mvm)) { 3660 key->hw_key_idx = STA_KEY_IDX_INVALID; 3661 ret = 0; 3662 break; 3663 } 3664 3665 if (!mvmvif->ap_ibss_active) { 3666 for (i = 0; 3667 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3668 i++) { 3669 if (!mvmvif->ap_early_keys[i]) { 3670 mvmvif->ap_early_keys[i] = key; 3671 break; 3672 } 3673 } 3674 3675 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3676 ret = -ENOSPC; 3677 else 3678 ret = 0; 3679 3680 break; 3681 } 3682 } 3683 3684 /* During FW restart, in order to restore the state as it was, 3685 * don't try to reprogram keys we previously failed for. 3686 */ 3687 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3688 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3689 IWL_DEBUG_MAC80211(mvm, 3690 "skip invalid idx key programming during restart\n"); 3691 ret = 0; 3692 break; 3693 } 3694 3695 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3696 sta && iwl_mvm_has_new_rx_api(mvm) && 3697 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3698 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3699 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3700 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3701 struct ieee80211_key_seq seq; 3702 int tid, q; 3703 3704 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3705 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3706 mvm->trans->num_rx_queues), 3707 GFP_KERNEL); 3708 if (!ptk_pn) { 3709 ret = -ENOMEM; 3710 break; 3711 } 3712 3713 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3714 ieee80211_get_key_rx_seq(key, tid, &seq); 3715 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3716 memcpy(ptk_pn->q[q].pn[tid], 3717 seq.ccmp.pn, 3718 IEEE80211_CCMP_PN_LEN); 3719 } 3720 3721 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3722 } 3723 3724 /* in HW restart reuse the index, otherwise request a new one */ 3725 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3726 key_offset = key->hw_key_idx; 3727 else 3728 key_offset = STA_KEY_IDX_INVALID; 3729 3730 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 3731 mvmsta->pairwise_cipher = key->cipher; 3732 3733 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3734 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3735 if (ret) { 3736 IWL_WARN(mvm, "set key failed\n"); 3737 key->hw_key_idx = STA_KEY_IDX_INVALID; 3738 /* 3739 * can't add key for RX, but we don't need it 3740 * in the device for TX so still return 0, 3741 * unless we have new TX API where we cannot 3742 * put key material into the TX_CMD 3743 */ 3744 if (iwl_mvm_has_new_tx_api(mvm)) 3745 ret = -EOPNOTSUPP; 3746 else 3747 ret = 0; 3748 } 3749 3750 break; 3751 case DISABLE_KEY: 3752 if (keyidx == 6 || keyidx == 7) 3753 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 3754 NULL); 3755 3756 ret = -ENOENT; 3757 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3758 if (mvmvif->ap_early_keys[i] == key) { 3759 mvmvif->ap_early_keys[i] = NULL; 3760 ret = 0; 3761 } 3762 } 3763 3764 /* found in pending list - don't do anything else */ 3765 if (ret == 0) 3766 break; 3767 3768 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3769 ret = 0; 3770 break; 3771 } 3772 3773 if (sta && iwl_mvm_has_new_rx_api(mvm) && 3774 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3775 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3776 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3777 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3778 ptk_pn = rcu_dereference_protected( 3779 mvmsta->ptk_pn[keyidx], 3780 lockdep_is_held(&mvm->mutex)); 3781 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3782 if (ptk_pn) 3783 kfree_rcu(ptk_pn, rcu_head); 3784 } 3785 3786 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3787 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3788 break; 3789 default: 3790 ret = -EINVAL; 3791 } 3792 3793 return ret; 3794 } 3795 3796 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3797 enum set_key_cmd cmd, 3798 struct ieee80211_vif *vif, 3799 struct ieee80211_sta *sta, 3800 struct ieee80211_key_conf *key) 3801 { 3802 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3803 int ret; 3804 3805 mutex_lock(&mvm->mutex); 3806 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3807 mutex_unlock(&mvm->mutex); 3808 3809 return ret; 3810 } 3811 3812 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3813 struct ieee80211_vif *vif, 3814 struct ieee80211_key_conf *keyconf, 3815 struct ieee80211_sta *sta, 3816 u32 iv32, u16 *phase1key) 3817 { 3818 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3819 3820 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3821 return; 3822 3823 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3824 } 3825 3826 3827 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3828 struct iwl_rx_packet *pkt, void *data) 3829 { 3830 struct iwl_mvm *mvm = 3831 container_of(notif_wait, struct iwl_mvm, notif_wait); 3832 struct iwl_hs20_roc_res *resp; 3833 int resp_len = iwl_rx_packet_payload_len(pkt); 3834 struct iwl_mvm_time_event_data *te_data = data; 3835 3836 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3837 return true; 3838 3839 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3840 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3841 return true; 3842 } 3843 3844 resp = (void *)pkt->data; 3845 3846 IWL_DEBUG_TE(mvm, 3847 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3848 resp->status, resp->event_unique_id); 3849 3850 te_data->uid = le32_to_cpu(resp->event_unique_id); 3851 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3852 te_data->uid); 3853 3854 spin_lock_bh(&mvm->time_event_lock); 3855 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3856 spin_unlock_bh(&mvm->time_event_lock); 3857 3858 return true; 3859 } 3860 3861 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3862 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3863 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3864 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3865 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3866 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3867 struct ieee80211_channel *channel, 3868 struct ieee80211_vif *vif, 3869 int duration) 3870 { 3871 int res; 3872 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3873 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3874 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3875 struct iwl_notification_wait wait_time_event; 3876 u32 dtim_interval = vif->bss_conf.dtim_period * 3877 vif->bss_conf.beacon_int; 3878 u32 req_dur, delay; 3879 struct iwl_hs20_roc_req aux_roc_req = { 3880 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3881 .id_and_color = 3882 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3883 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3884 }; 3885 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3886 &aux_roc_req.channel_info); 3887 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3888 3889 /* Set the channel info data */ 3890 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3891 iwl_mvm_phy_band_from_nl80211(channel->band), 3892 PHY_VHT_CHANNEL_MODE20, 3893 0); 3894 3895 /* Set the time and duration */ 3896 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3897 3898 delay = AUX_ROC_MIN_DELAY; 3899 req_dur = MSEC_TO_TU(duration); 3900 3901 /* 3902 * If we are associated we want the delay time to be at least one 3903 * dtim interval so that the FW can wait until after the DTIM and 3904 * then start the time event, this will potentially allow us to 3905 * remain off-channel for the max duration. 3906 * Since we want to use almost a whole dtim interval we would also 3907 * like the delay to be for 2-3 dtim intervals, in case there are 3908 * other time events with higher priority. 3909 */ 3910 if (vif->bss_conf.assoc) { 3911 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3912 /* We cannot remain off-channel longer than the DTIM interval */ 3913 if (dtim_interval <= req_dur) { 3914 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3915 if (req_dur <= AUX_ROC_MIN_DURATION) 3916 req_dur = dtim_interval - 3917 AUX_ROC_MIN_SAFETY_BUFFER; 3918 } 3919 } 3920 3921 tail->duration = cpu_to_le32(req_dur); 3922 tail->apply_time_max_delay = cpu_to_le32(delay); 3923 3924 IWL_DEBUG_TE(mvm, 3925 "ROC: Requesting to remain on channel %u for %ums\n", 3926 channel->hw_value, req_dur); 3927 IWL_DEBUG_TE(mvm, 3928 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3929 duration, delay, dtim_interval); 3930 3931 /* Set the node address */ 3932 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3933 3934 lockdep_assert_held(&mvm->mutex); 3935 3936 spin_lock_bh(&mvm->time_event_lock); 3937 3938 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3939 spin_unlock_bh(&mvm->time_event_lock); 3940 return -EIO; 3941 } 3942 3943 te_data->vif = vif; 3944 te_data->duration = duration; 3945 te_data->id = HOT_SPOT_CMD; 3946 3947 spin_unlock_bh(&mvm->time_event_lock); 3948 3949 /* 3950 * Use a notification wait, which really just processes the 3951 * command response and doesn't wait for anything, in order 3952 * to be able to process the response and get the UID inside 3953 * the RX path. Using CMD_WANT_SKB doesn't work because it 3954 * stores the buffer and then wakes up this thread, by which 3955 * time another notification (that the time event started) 3956 * might already be processed unsuccessfully. 3957 */ 3958 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3959 time_event_response, 3960 ARRAY_SIZE(time_event_response), 3961 iwl_mvm_rx_aux_roc, te_data); 3962 3963 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3964 &aux_roc_req); 3965 3966 if (res) { 3967 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3968 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3969 goto out_clear_te; 3970 } 3971 3972 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3973 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3974 /* should never fail */ 3975 WARN_ON_ONCE(res); 3976 3977 if (res) { 3978 out_clear_te: 3979 spin_lock_bh(&mvm->time_event_lock); 3980 iwl_mvm_te_clear_data(mvm, te_data); 3981 spin_unlock_bh(&mvm->time_event_lock); 3982 } 3983 3984 return res; 3985 } 3986 3987 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3988 struct ieee80211_vif *vif, 3989 struct ieee80211_channel *channel, 3990 int duration, 3991 enum ieee80211_roc_type type) 3992 { 3993 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3994 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3995 struct cfg80211_chan_def chandef; 3996 struct iwl_mvm_phy_ctxt *phy_ctxt; 3997 bool band_change_removal; 3998 int ret, i; 3999 4000 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4001 duration, type); 4002 4003 /* 4004 * Flush the done work, just in case it's still pending, so that 4005 * the work it does can complete and we can accept new frames. 4006 */ 4007 flush_work(&mvm->roc_done_wk); 4008 4009 mutex_lock(&mvm->mutex); 4010 4011 switch (vif->type) { 4012 case NL80211_IFTYPE_STATION: 4013 if (fw_has_capa(&mvm->fw->ucode_capa, 4014 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4015 /* Use aux roc framework (HS20) */ 4016 if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP, 4017 ADD_STA, 0) >= 12) { 4018 u32 lmac_id; 4019 4020 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, 4021 channel->band); 4022 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4023 if (WARN(ret, 4024 "Failed to allocate aux station")) 4025 goto out_unlock; 4026 } 4027 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4028 vif, duration); 4029 goto out_unlock; 4030 } 4031 IWL_ERR(mvm, "hotspot not supported\n"); 4032 ret = -EINVAL; 4033 goto out_unlock; 4034 case NL80211_IFTYPE_P2P_DEVICE: 4035 /* handle below */ 4036 break; 4037 default: 4038 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4039 ret = -EINVAL; 4040 goto out_unlock; 4041 } 4042 4043 for (i = 0; i < NUM_PHY_CTX; i++) { 4044 phy_ctxt = &mvm->phy_ctxts[i]; 4045 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 4046 continue; 4047 4048 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4049 /* 4050 * Unbind the P2P_DEVICE from the current PHY context, 4051 * and if the PHY context is not used remove it. 4052 */ 4053 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4054 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4055 goto out_unlock; 4056 4057 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4058 4059 /* Bind the P2P_DEVICE to the current PHY Context */ 4060 mvmvif->phy_ctxt = phy_ctxt; 4061 4062 ret = iwl_mvm_binding_add_vif(mvm, vif); 4063 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4064 goto out_unlock; 4065 4066 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4067 goto schedule_time_event; 4068 } 4069 } 4070 4071 /* Need to update the PHY context only if the ROC channel changed */ 4072 if (channel == mvmvif->phy_ctxt->channel) 4073 goto schedule_time_event; 4074 4075 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4076 4077 /* 4078 * Check if the remain-on-channel is on a different band and that 4079 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4080 * so, we'll need to release and then re-configure here, since we 4081 * must not remove a PHY context that's part of a binding. 4082 */ 4083 band_change_removal = 4084 fw_has_capa(&mvm->fw->ucode_capa, 4085 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4086 mvmvif->phy_ctxt->channel->band != chandef.chan->band; 4087 4088 if (mvmvif->phy_ctxt->ref == 1 && !band_change_removal) { 4089 /* 4090 * Change the PHY context configuration as it is currently 4091 * referenced only by the P2P Device MAC (and we can modify it) 4092 */ 4093 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 4094 &chandef, 1, 1); 4095 if (ret) 4096 goto out_unlock; 4097 } else { 4098 /* 4099 * The PHY context is shared with other MACs (or we're trying to 4100 * switch bands), so remove the P2P Device from the binding, 4101 * allocate an new PHY context and create a new binding. 4102 */ 4103 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4104 if (!phy_ctxt) { 4105 ret = -ENOSPC; 4106 goto out_unlock; 4107 } 4108 4109 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4110 1, 1); 4111 if (ret) { 4112 IWL_ERR(mvm, "Failed to change PHY context\n"); 4113 goto out_unlock; 4114 } 4115 4116 /* Unbind the P2P_DEVICE from the current PHY context */ 4117 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4118 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4119 goto out_unlock; 4120 4121 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4122 4123 /* Bind the P2P_DEVICE to the new allocated PHY context */ 4124 mvmvif->phy_ctxt = phy_ctxt; 4125 4126 ret = iwl_mvm_binding_add_vif(mvm, vif); 4127 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4128 goto out_unlock; 4129 4130 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4131 } 4132 4133 schedule_time_event: 4134 /* Schedule the time events */ 4135 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4136 4137 out_unlock: 4138 mutex_unlock(&mvm->mutex); 4139 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4140 return ret; 4141 } 4142 4143 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4144 struct ieee80211_vif *vif) 4145 { 4146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4147 4148 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4149 4150 mutex_lock(&mvm->mutex); 4151 iwl_mvm_stop_roc(mvm, vif); 4152 mutex_unlock(&mvm->mutex); 4153 4154 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4155 return 0; 4156 } 4157 4158 struct iwl_mvm_ftm_responder_iter_data { 4159 bool responder; 4160 struct ieee80211_chanctx_conf *ctx; 4161 }; 4162 4163 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4164 struct ieee80211_vif *vif) 4165 { 4166 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4167 4168 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && 4169 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4170 data->responder = true; 4171 } 4172 4173 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4174 struct ieee80211_chanctx_conf *ctx) 4175 { 4176 struct iwl_mvm_ftm_responder_iter_data data = { 4177 .responder = false, 4178 .ctx = ctx, 4179 }; 4180 4181 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4182 IEEE80211_IFACE_ITER_NORMAL, 4183 iwl_mvm_ftm_responder_chanctx_iter, 4184 &data); 4185 return data.responder; 4186 } 4187 4188 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4189 struct ieee80211_chanctx_conf *ctx) 4190 { 4191 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4192 struct iwl_mvm_phy_ctxt *phy_ctxt; 4193 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4194 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4195 int ret; 4196 4197 lockdep_assert_held(&mvm->mutex); 4198 4199 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4200 4201 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4202 if (!phy_ctxt) { 4203 ret = -ENOSPC; 4204 goto out; 4205 } 4206 4207 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4208 ctx->rx_chains_static, 4209 ctx->rx_chains_dynamic); 4210 if (ret) { 4211 IWL_ERR(mvm, "Failed to add PHY context\n"); 4212 goto out; 4213 } 4214 4215 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4216 *phy_ctxt_id = phy_ctxt->id; 4217 out: 4218 return ret; 4219 } 4220 4221 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4222 struct ieee80211_chanctx_conf *ctx) 4223 { 4224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4225 int ret; 4226 4227 mutex_lock(&mvm->mutex); 4228 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4229 mutex_unlock(&mvm->mutex); 4230 4231 return ret; 4232 } 4233 4234 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4235 struct ieee80211_chanctx_conf *ctx) 4236 { 4237 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4238 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4239 4240 lockdep_assert_held(&mvm->mutex); 4241 4242 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4243 } 4244 4245 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4246 struct ieee80211_chanctx_conf *ctx) 4247 { 4248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4249 4250 mutex_lock(&mvm->mutex); 4251 __iwl_mvm_remove_chanctx(mvm, ctx); 4252 mutex_unlock(&mvm->mutex); 4253 } 4254 4255 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4256 struct ieee80211_chanctx_conf *ctx, 4257 u32 changed) 4258 { 4259 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4260 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4261 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4262 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4263 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4264 4265 if (WARN_ONCE((phy_ctxt->ref > 1) && 4266 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4267 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4268 IEEE80211_CHANCTX_CHANGE_RADAR | 4269 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4270 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4271 phy_ctxt->ref, changed)) 4272 return; 4273 4274 mutex_lock(&mvm->mutex); 4275 4276 /* we are only changing the min_width, may be a noop */ 4277 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4278 if (phy_ctxt->width == def->width) 4279 goto out_unlock; 4280 4281 /* we are just toggling between 20_NOHT and 20 */ 4282 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4283 def->width <= NL80211_CHAN_WIDTH_20) 4284 goto out_unlock; 4285 } 4286 4287 iwl_mvm_bt_coex_vif_change(mvm); 4288 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4289 ctx->rx_chains_static, 4290 ctx->rx_chains_dynamic); 4291 4292 out_unlock: 4293 mutex_unlock(&mvm->mutex); 4294 } 4295 4296 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4297 struct ieee80211_vif *vif, 4298 struct ieee80211_chanctx_conf *ctx, 4299 bool switching_chanctx) 4300 { 4301 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4302 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4303 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4304 int ret; 4305 4306 lockdep_assert_held(&mvm->mutex); 4307 4308 mvmvif->phy_ctxt = phy_ctxt; 4309 4310 switch (vif->type) { 4311 case NL80211_IFTYPE_AP: 4312 /* only needed if we're switching chanctx (i.e. during CSA) */ 4313 if (switching_chanctx) { 4314 mvmvif->ap_ibss_active = true; 4315 break; 4316 } 4317 fallthrough; 4318 case NL80211_IFTYPE_ADHOC: 4319 /* 4320 * The AP binding flow is handled as part of the start_ap flow 4321 * (in bss_info_changed), similarly for IBSS. 4322 */ 4323 ret = 0; 4324 goto out; 4325 case NL80211_IFTYPE_STATION: 4326 mvmvif->csa_bcn_pending = false; 4327 break; 4328 case NL80211_IFTYPE_MONITOR: 4329 /* always disable PS when a monitor interface is active */ 4330 mvmvif->ps_disabled = true; 4331 break; 4332 default: 4333 ret = -EINVAL; 4334 goto out; 4335 } 4336 4337 ret = iwl_mvm_binding_add_vif(mvm, vif); 4338 if (ret) 4339 goto out; 4340 4341 /* 4342 * Power state must be updated before quotas, 4343 * otherwise fw will complain. 4344 */ 4345 iwl_mvm_power_update_mac(mvm); 4346 4347 /* Setting the quota at this stage is only required for monitor 4348 * interfaces. For the other types, the bss_info changed flow 4349 * will handle quota settings. 4350 */ 4351 if (vif->type == NL80211_IFTYPE_MONITOR) { 4352 mvmvif->monitor_active = true; 4353 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4354 if (ret) 4355 goto out_remove_binding; 4356 4357 ret = iwl_mvm_add_snif_sta(mvm, vif); 4358 if (ret) 4359 goto out_remove_binding; 4360 4361 } 4362 4363 /* Handle binding during CSA */ 4364 if (vif->type == NL80211_IFTYPE_AP) { 4365 iwl_mvm_update_quotas(mvm, false, NULL); 4366 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4367 } 4368 4369 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4370 mvmvif->csa_bcn_pending = true; 4371 4372 if (!fw_has_capa(&mvm->fw->ucode_capa, 4373 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4374 u32 duration = 3 * vif->bss_conf.beacon_int; 4375 4376 /* Protect the session to make sure we hear the first 4377 * beacon on the new channel. 4378 */ 4379 iwl_mvm_protect_session(mvm, vif, duration, duration, 4380 vif->bss_conf.beacon_int / 2, 4381 true); 4382 } 4383 4384 iwl_mvm_update_quotas(mvm, false, NULL); 4385 } 4386 4387 goto out; 4388 4389 out_remove_binding: 4390 iwl_mvm_binding_remove_vif(mvm, vif); 4391 iwl_mvm_power_update_mac(mvm); 4392 out: 4393 if (ret) 4394 mvmvif->phy_ctxt = NULL; 4395 return ret; 4396 } 4397 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4398 struct ieee80211_vif *vif, 4399 struct ieee80211_chanctx_conf *ctx) 4400 { 4401 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4402 int ret; 4403 4404 mutex_lock(&mvm->mutex); 4405 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4406 mutex_unlock(&mvm->mutex); 4407 4408 return ret; 4409 } 4410 4411 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4412 struct ieee80211_vif *vif, 4413 struct ieee80211_chanctx_conf *ctx, 4414 bool switching_chanctx) 4415 { 4416 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4417 struct ieee80211_vif *disabled_vif = NULL; 4418 4419 lockdep_assert_held(&mvm->mutex); 4420 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4421 4422 switch (vif->type) { 4423 case NL80211_IFTYPE_ADHOC: 4424 goto out; 4425 case NL80211_IFTYPE_MONITOR: 4426 mvmvif->monitor_active = false; 4427 mvmvif->ps_disabled = false; 4428 iwl_mvm_rm_snif_sta(mvm, vif); 4429 break; 4430 case NL80211_IFTYPE_AP: 4431 /* This part is triggered only during CSA */ 4432 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4433 goto out; 4434 4435 mvmvif->csa_countdown = false; 4436 4437 /* Set CS bit on all the stations */ 4438 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4439 4440 /* Save blocked iface, the timeout is set on the next beacon */ 4441 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4442 4443 mvmvif->ap_ibss_active = false; 4444 break; 4445 case NL80211_IFTYPE_STATION: 4446 if (!switching_chanctx) 4447 break; 4448 4449 disabled_vif = vif; 4450 4451 if (!fw_has_capa(&mvm->fw->ucode_capa, 4452 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4453 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4454 break; 4455 default: 4456 break; 4457 } 4458 4459 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4460 iwl_mvm_binding_remove_vif(mvm, vif); 4461 4462 out: 4463 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 4464 switching_chanctx) 4465 return; 4466 mvmvif->phy_ctxt = NULL; 4467 iwl_mvm_power_update_mac(mvm); 4468 } 4469 4470 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4471 struct ieee80211_vif *vif, 4472 struct ieee80211_chanctx_conf *ctx) 4473 { 4474 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4475 4476 mutex_lock(&mvm->mutex); 4477 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4478 mutex_unlock(&mvm->mutex); 4479 } 4480 4481 static int 4482 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4483 struct ieee80211_vif_chanctx_switch *vifs) 4484 { 4485 int ret; 4486 4487 mutex_lock(&mvm->mutex); 4488 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4489 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4490 4491 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4492 if (ret) { 4493 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4494 goto out_reassign; 4495 } 4496 4497 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4498 true); 4499 if (ret) { 4500 IWL_ERR(mvm, 4501 "failed to assign new_ctx during channel switch\n"); 4502 goto out_remove; 4503 } 4504 4505 /* we don't support TDLS during DCM - can be caused by channel switch */ 4506 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4507 iwl_mvm_teardown_tdls_peers(mvm); 4508 4509 goto out; 4510 4511 out_remove: 4512 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4513 4514 out_reassign: 4515 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4516 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4517 goto out_restart; 4518 } 4519 4520 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4521 true)) { 4522 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4523 goto out_restart; 4524 } 4525 4526 goto out; 4527 4528 out_restart: 4529 /* things keep failing, better restart the hw */ 4530 iwl_mvm_nic_restart(mvm, false); 4531 4532 out: 4533 mutex_unlock(&mvm->mutex); 4534 4535 return ret; 4536 } 4537 4538 static int 4539 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4540 struct ieee80211_vif_chanctx_switch *vifs) 4541 { 4542 int ret; 4543 4544 mutex_lock(&mvm->mutex); 4545 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4546 4547 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4548 true); 4549 if (ret) { 4550 IWL_ERR(mvm, 4551 "failed to assign new_ctx during channel switch\n"); 4552 goto out_reassign; 4553 } 4554 4555 goto out; 4556 4557 out_reassign: 4558 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4559 true)) { 4560 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4561 goto out_restart; 4562 } 4563 4564 goto out; 4565 4566 out_restart: 4567 /* things keep failing, better restart the hw */ 4568 iwl_mvm_nic_restart(mvm, false); 4569 4570 out: 4571 mutex_unlock(&mvm->mutex); 4572 4573 return ret; 4574 } 4575 4576 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4577 struct ieee80211_vif_chanctx_switch *vifs, 4578 int n_vifs, 4579 enum ieee80211_chanctx_switch_mode mode) 4580 { 4581 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4582 int ret; 4583 4584 /* we only support a single-vif right now */ 4585 if (n_vifs > 1) 4586 return -EOPNOTSUPP; 4587 4588 switch (mode) { 4589 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4590 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4591 break; 4592 case CHANCTX_SWMODE_REASSIGN_VIF: 4593 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4594 break; 4595 default: 4596 ret = -EOPNOTSUPP; 4597 break; 4598 } 4599 4600 return ret; 4601 } 4602 4603 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4604 { 4605 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4606 4607 return mvm->ibss_manager; 4608 } 4609 4610 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4611 struct ieee80211_sta *sta, 4612 bool set) 4613 { 4614 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4615 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4616 4617 if (!mvm_sta || !mvm_sta->vif) { 4618 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4619 return -EINVAL; 4620 } 4621 4622 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4623 } 4624 4625 #ifdef CONFIG_NL80211_TESTMODE 4626 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4627 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4628 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4629 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4630 }; 4631 4632 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4633 struct ieee80211_vif *vif, 4634 void *data, int len) 4635 { 4636 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4637 int err; 4638 u32 noa_duration; 4639 4640 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4641 iwl_mvm_tm_policy, NULL); 4642 if (err) 4643 return err; 4644 4645 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4646 return -EINVAL; 4647 4648 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4649 case IWL_MVM_TM_CMD_SET_NOA: 4650 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4651 !vif->bss_conf.enable_beacon || 4652 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4653 return -EINVAL; 4654 4655 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4656 if (noa_duration >= vif->bss_conf.beacon_int) 4657 return -EINVAL; 4658 4659 mvm->noa_duration = noa_duration; 4660 mvm->noa_vif = vif; 4661 4662 return iwl_mvm_update_quotas(mvm, true, NULL); 4663 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4664 /* must be associated client vif - ignore authorized */ 4665 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4666 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4667 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4668 return -EINVAL; 4669 4670 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4671 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4672 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4673 } 4674 4675 return -EOPNOTSUPP; 4676 } 4677 4678 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4679 struct ieee80211_vif *vif, 4680 void *data, int len) 4681 { 4682 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4683 int err; 4684 4685 mutex_lock(&mvm->mutex); 4686 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4687 mutex_unlock(&mvm->mutex); 4688 4689 return err; 4690 } 4691 #endif 4692 4693 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4694 struct ieee80211_vif *vif, 4695 struct ieee80211_channel_switch *chsw) 4696 { 4697 /* By implementing this operation, we prevent mac80211 from 4698 * starting its own channel switch timer, so that we can call 4699 * ieee80211_chswitch_done() ourselves at the right time 4700 * (which is when the absence time event starts). 4701 */ 4702 4703 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4704 "dummy channel switch op\n"); 4705 } 4706 4707 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4708 struct ieee80211_vif *vif, 4709 struct ieee80211_channel_switch *chsw) 4710 { 4711 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4712 struct iwl_chan_switch_te_cmd cmd = { 4713 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4714 mvmvif->color)), 4715 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4716 .tsf = cpu_to_le32(chsw->timestamp), 4717 .cs_count = chsw->count, 4718 .cs_mode = chsw->block_tx, 4719 }; 4720 4721 lockdep_assert_held(&mvm->mutex); 4722 4723 if (chsw->delay) 4724 cmd.cs_delayed_bcn_count = 4725 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4726 4727 return iwl_mvm_send_cmd_pdu(mvm, 4728 WIDE_ID(MAC_CONF_GROUP, 4729 CHANNEL_SWITCH_TIME_EVENT_CMD), 4730 0, sizeof(cmd), &cmd); 4731 } 4732 4733 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4734 struct ieee80211_vif *vif, 4735 struct ieee80211_channel_switch *chsw) 4736 { 4737 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4738 u32 apply_time; 4739 4740 /* Schedule the time event to a bit before beacon 1, 4741 * to make sure we're in the new channel when the 4742 * GO/AP arrives. In case count <= 1 immediately schedule the 4743 * TE (this might result with some packet loss or connection 4744 * loss). 4745 */ 4746 if (chsw->count <= 1) 4747 apply_time = 0; 4748 else 4749 apply_time = chsw->device_timestamp + 4750 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4751 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4752 4753 if (chsw->block_tx) 4754 iwl_mvm_csa_client_absent(mvm, vif); 4755 4756 if (mvmvif->bf_data.bf_enabled) { 4757 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4758 4759 if (ret) 4760 return ret; 4761 } 4762 4763 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4764 apply_time); 4765 4766 return 0; 4767 } 4768 4769 #define IWL_MAX_CSA_BLOCK_TX 1500 4770 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4771 struct ieee80211_vif *vif, 4772 struct ieee80211_channel_switch *chsw) 4773 { 4774 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4775 struct ieee80211_vif *csa_vif; 4776 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4777 int ret; 4778 4779 mutex_lock(&mvm->mutex); 4780 4781 mvmvif->csa_failed = false; 4782 4783 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4784 chsw->chandef.center_freq1); 4785 4786 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4787 ieee80211_vif_to_wdev(vif), 4788 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4789 4790 switch (vif->type) { 4791 case NL80211_IFTYPE_AP: 4792 csa_vif = 4793 rcu_dereference_protected(mvm->csa_vif, 4794 lockdep_is_held(&mvm->mutex)); 4795 if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4796 "Another CSA is already in progress")) { 4797 ret = -EBUSY; 4798 goto out_unlock; 4799 } 4800 4801 /* we still didn't unblock tx. prevent new CS meanwhile */ 4802 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4803 lockdep_is_held(&mvm->mutex))) { 4804 ret = -EBUSY; 4805 goto out_unlock; 4806 } 4807 4808 rcu_assign_pointer(mvm->csa_vif, vif); 4809 4810 if (WARN_ONCE(mvmvif->csa_countdown, 4811 "Previous CSA countdown didn't complete")) { 4812 ret = -EBUSY; 4813 goto out_unlock; 4814 } 4815 4816 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4817 4818 break; 4819 case NL80211_IFTYPE_STATION: 4820 /* 4821 * We haven't configured the firmware to be associated yet since 4822 * we don't know the dtim period. In this case, the firmware can't 4823 * track the beacons. 4824 */ 4825 if (!vif->bss_conf.assoc || !vif->bss_conf.dtim_period) { 4826 ret = -EBUSY; 4827 goto out_unlock; 4828 } 4829 4830 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 4831 schedule_delayed_work(&mvmvif->csa_work, 0); 4832 4833 if (chsw->block_tx) { 4834 /* 4835 * In case of undetermined / long time with immediate 4836 * quiet monitor status to gracefully disconnect 4837 */ 4838 if (!chsw->count || 4839 chsw->count * vif->bss_conf.beacon_int > 4840 IWL_MAX_CSA_BLOCK_TX) 4841 schedule_delayed_work(&mvmvif->csa_work, 4842 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4843 } 4844 4845 if (!fw_has_capa(&mvm->fw->ucode_capa, 4846 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4847 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4848 if (ret) 4849 goto out_unlock; 4850 } else { 4851 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4852 } 4853 4854 mvmvif->csa_count = chsw->count; 4855 mvmvif->csa_misbehave = false; 4856 break; 4857 default: 4858 break; 4859 } 4860 4861 mvmvif->ps_disabled = true; 4862 4863 ret = iwl_mvm_power_update_ps(mvm); 4864 if (ret) 4865 goto out_unlock; 4866 4867 /* we won't be on this channel any longer */ 4868 iwl_mvm_teardown_tdls_peers(mvm); 4869 4870 out_unlock: 4871 mutex_unlock(&mvm->mutex); 4872 4873 return ret; 4874 } 4875 4876 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4877 struct ieee80211_vif *vif, 4878 struct ieee80211_channel_switch *chsw) 4879 { 4880 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4881 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4882 struct iwl_chan_switch_te_cmd cmd = { 4883 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4884 mvmvif->color)), 4885 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4886 .tsf = cpu_to_le32(chsw->timestamp), 4887 .cs_count = chsw->count, 4888 .cs_mode = chsw->block_tx, 4889 }; 4890 4891 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4892 return; 4893 4894 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 4895 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 4896 4897 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4898 if (mvmvif->csa_misbehave) { 4899 /* Second time, give up on this AP*/ 4900 iwl_mvm_abort_channel_switch(hw, vif); 4901 ieee80211_chswitch_done(vif, false); 4902 mvmvif->csa_misbehave = false; 4903 return; 4904 } 4905 mvmvif->csa_misbehave = true; 4906 } 4907 mvmvif->csa_count = chsw->count; 4908 4909 mutex_lock(&mvm->mutex); 4910 if (mvmvif->csa_failed) 4911 goto out_unlock; 4912 4913 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4914 WIDE_ID(MAC_CONF_GROUP, 4915 CHANNEL_SWITCH_TIME_EVENT_CMD), 4916 0, sizeof(cmd), &cmd)); 4917 out_unlock: 4918 mutex_unlock(&mvm->mutex); 4919 } 4920 4921 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4922 { 4923 int i; 4924 4925 if (!iwl_mvm_has_new_tx_api(mvm)) { 4926 if (drop) { 4927 mutex_lock(&mvm->mutex); 4928 iwl_mvm_flush_tx_path(mvm, 4929 iwl_mvm_flushable_queues(mvm) & queues); 4930 mutex_unlock(&mvm->mutex); 4931 } else { 4932 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4933 } 4934 return; 4935 } 4936 4937 mutex_lock(&mvm->mutex); 4938 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4939 struct ieee80211_sta *sta; 4940 4941 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4942 lockdep_is_held(&mvm->mutex)); 4943 if (IS_ERR_OR_NULL(sta)) 4944 continue; 4945 4946 if (drop) 4947 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 4948 else 4949 iwl_mvm_wait_sta_queues_empty(mvm, 4950 iwl_mvm_sta_from_mac80211(sta)); 4951 } 4952 mutex_unlock(&mvm->mutex); 4953 } 4954 4955 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4956 struct ieee80211_vif *vif, u32 queues, bool drop) 4957 { 4958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4959 struct iwl_mvm_vif *mvmvif; 4960 struct iwl_mvm_sta *mvmsta; 4961 struct ieee80211_sta *sta; 4962 int i; 4963 u32 msk = 0; 4964 4965 if (!vif) { 4966 iwl_mvm_flush_no_vif(mvm, queues, drop); 4967 return; 4968 } 4969 4970 if (vif->type != NL80211_IFTYPE_STATION) 4971 return; 4972 4973 /* Make sure we're done with the deferred traffic before flushing */ 4974 flush_work(&mvm->add_stream_wk); 4975 4976 mutex_lock(&mvm->mutex); 4977 mvmvif = iwl_mvm_vif_from_mac80211(vif); 4978 4979 /* flush the AP-station and all TDLS peers */ 4980 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 4981 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4982 lockdep_is_held(&mvm->mutex)); 4983 if (IS_ERR_OR_NULL(sta)) 4984 continue; 4985 4986 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4987 if (mvmsta->vif != vif) 4988 continue; 4989 4990 /* make sure only TDLS peers or the AP are flushed */ 4991 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4992 4993 if (drop) { 4994 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 4995 IWL_ERR(mvm, "flush request fail\n"); 4996 } else { 4997 msk |= mvmsta->tfd_queue_msk; 4998 if (iwl_mvm_has_new_tx_api(mvm)) 4999 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5000 } 5001 } 5002 5003 mutex_unlock(&mvm->mutex); 5004 5005 /* this can take a while, and we may need/want other operations 5006 * to succeed while doing this, so do it without the mutex held 5007 */ 5008 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5009 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5010 } 5011 5012 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5013 struct survey_info *survey) 5014 { 5015 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5016 int ret; 5017 5018 memset(survey, 0, sizeof(*survey)); 5019 5020 /* only support global statistics right now */ 5021 if (idx != 0) 5022 return -ENOENT; 5023 5024 if (!fw_has_capa(&mvm->fw->ucode_capa, 5025 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5026 return -ENOENT; 5027 5028 mutex_lock(&mvm->mutex); 5029 5030 if (iwl_mvm_firmware_running(mvm)) { 5031 ret = iwl_mvm_request_statistics(mvm, false); 5032 if (ret) 5033 goto out; 5034 } 5035 5036 survey->filled = SURVEY_INFO_TIME | 5037 SURVEY_INFO_TIME_RX | 5038 SURVEY_INFO_TIME_TX | 5039 SURVEY_INFO_TIME_SCAN; 5040 survey->time = mvm->accu_radio_stats.on_time_rf + 5041 mvm->radio_stats.on_time_rf; 5042 do_div(survey->time, USEC_PER_MSEC); 5043 5044 survey->time_rx = mvm->accu_radio_stats.rx_time + 5045 mvm->radio_stats.rx_time; 5046 do_div(survey->time_rx, USEC_PER_MSEC); 5047 5048 survey->time_tx = mvm->accu_radio_stats.tx_time + 5049 mvm->radio_stats.tx_time; 5050 do_div(survey->time_tx, USEC_PER_MSEC); 5051 5052 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5053 mvm->radio_stats.on_time_scan; 5054 do_div(survey->time_scan, USEC_PER_MSEC); 5055 5056 ret = 0; 5057 out: 5058 mutex_unlock(&mvm->mutex); 5059 return ret; 5060 } 5061 5062 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5063 { 5064 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5065 5066 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5067 case RATE_MCS_CHAN_WIDTH_20: 5068 rinfo->bw = RATE_INFO_BW_20; 5069 break; 5070 case RATE_MCS_CHAN_WIDTH_40: 5071 rinfo->bw = RATE_INFO_BW_40; 5072 break; 5073 case RATE_MCS_CHAN_WIDTH_80: 5074 rinfo->bw = RATE_INFO_BW_80; 5075 break; 5076 case RATE_MCS_CHAN_WIDTH_160: 5077 rinfo->bw = RATE_INFO_BW_160; 5078 break; 5079 } 5080 5081 if (format == RATE_MCS_CCK_MSK || 5082 format == RATE_MCS_LEGACY_OFDM_MSK) { 5083 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5084 5085 /* add the offset needed to get to the legacy ofdm indices */ 5086 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5087 rate += IWL_FIRST_OFDM_RATE; 5088 5089 switch (rate) { 5090 case IWL_RATE_1M_INDEX: 5091 rinfo->legacy = 10; 5092 break; 5093 case IWL_RATE_2M_INDEX: 5094 rinfo->legacy = 20; 5095 break; 5096 case IWL_RATE_5M_INDEX: 5097 rinfo->legacy = 55; 5098 break; 5099 case IWL_RATE_11M_INDEX: 5100 rinfo->legacy = 110; 5101 break; 5102 case IWL_RATE_6M_INDEX: 5103 rinfo->legacy = 60; 5104 break; 5105 case IWL_RATE_9M_INDEX: 5106 rinfo->legacy = 90; 5107 break; 5108 case IWL_RATE_12M_INDEX: 5109 rinfo->legacy = 120; 5110 break; 5111 case IWL_RATE_18M_INDEX: 5112 rinfo->legacy = 180; 5113 break; 5114 case IWL_RATE_24M_INDEX: 5115 rinfo->legacy = 240; 5116 break; 5117 case IWL_RATE_36M_INDEX: 5118 rinfo->legacy = 360; 5119 break; 5120 case IWL_RATE_48M_INDEX: 5121 rinfo->legacy = 480; 5122 break; 5123 case IWL_RATE_54M_INDEX: 5124 rinfo->legacy = 540; 5125 } 5126 return; 5127 } 5128 5129 rinfo->nss = u32_get_bits(rate_n_flags, 5130 RATE_MCS_NSS_MSK) + 1; 5131 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5132 RATE_HT_MCS_INDEX(rate_n_flags) : 5133 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5134 5135 if (format == RATE_MCS_HE_MSK) { 5136 u32 gi_ltf = u32_get_bits(rate_n_flags, 5137 RATE_MCS_HE_GI_LTF_MSK); 5138 5139 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5140 5141 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5142 rinfo->bw = RATE_INFO_BW_HE_RU; 5143 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5144 } 5145 5146 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5147 case RATE_MCS_HE_TYPE_SU: 5148 case RATE_MCS_HE_TYPE_EXT_SU: 5149 if (gi_ltf == 0 || gi_ltf == 1) 5150 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5151 else if (gi_ltf == 2) 5152 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5153 else if (gi_ltf == 3) 5154 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5155 else 5156 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5157 break; 5158 case RATE_MCS_HE_TYPE_MU: 5159 if (gi_ltf == 0 || gi_ltf == 1) 5160 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5161 else if (gi_ltf == 2) 5162 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5163 else 5164 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5165 break; 5166 case RATE_MCS_HE_TYPE_TRIG: 5167 if (gi_ltf == 0 || gi_ltf == 1) 5168 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5169 else 5170 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5171 break; 5172 } 5173 5174 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5175 rinfo->he_dcm = 1; 5176 return; 5177 } 5178 5179 if (rate_n_flags & RATE_MCS_SGI_MSK) 5180 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5181 5182 if (format == RATE_MCS_HT_MSK) { 5183 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5184 5185 } else if (format == RATE_MCS_VHT_MSK) { 5186 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5187 } 5188 5189 } 5190 5191 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5192 struct ieee80211_vif *vif, 5193 struct ieee80211_sta *sta, 5194 struct station_info *sinfo) 5195 { 5196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5197 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5198 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5199 5200 if (mvmsta->avg_energy) { 5201 sinfo->signal_avg = -(s8)mvmsta->avg_energy; 5202 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5203 } 5204 5205 if (iwl_mvm_has_tlc_offload(mvm)) { 5206 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 5207 5208 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5209 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5210 } 5211 5212 /* if beacon filtering isn't on mac80211 does it anyway */ 5213 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5214 return; 5215 5216 if (!vif->bss_conf.assoc) 5217 return; 5218 5219 mutex_lock(&mvm->mutex); 5220 5221 if (mvmvif->ap_sta_id != mvmsta->sta_id) 5222 goto unlock; 5223 5224 if (iwl_mvm_request_statistics(mvm, false)) 5225 goto unlock; 5226 5227 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 5228 mvmvif->beacon_stats.accu_num_beacons; 5229 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5230 if (mvmvif->beacon_stats.avg_signal) { 5231 /* firmware only reports a value after RXing a few beacons */ 5232 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 5233 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5234 } 5235 unlock: 5236 mutex_unlock(&mvm->mutex); 5237 } 5238 5239 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5240 struct ieee80211_vif *vif, 5241 const struct ieee80211_mlme_event *mlme) 5242 { 5243 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5244 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5245 iwl_dbg_tlv_time_point(&mvm->fwrt, 5246 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5247 NULL); 5248 return; 5249 } 5250 5251 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5252 iwl_dbg_tlv_time_point(&mvm->fwrt, 5253 IWL_FW_INI_TIME_POINT_DEASSOC, 5254 NULL); 5255 return; 5256 } 5257 } 5258 5259 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5260 struct ieee80211_vif *vif, 5261 const struct ieee80211_event *event) 5262 { 5263 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5264 do { \ 5265 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5266 break; \ 5267 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5268 } while (0) 5269 5270 struct iwl_fw_dbg_trigger_tlv *trig; 5271 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5272 5273 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5274 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5275 return; 5276 } 5277 5278 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5279 FW_DBG_TRIGGER_MLME); 5280 if (!trig) 5281 return; 5282 5283 trig_mlme = (void *)trig->data; 5284 5285 if (event->u.mlme.data == ASSOC_EVENT) { 5286 if (event->u.mlme.status == MLME_DENIED) 5287 CHECK_MLME_TRIGGER(stop_assoc_denied, 5288 "DENIED ASSOC: reason %d", 5289 event->u.mlme.reason); 5290 else if (event->u.mlme.status == MLME_TIMEOUT) 5291 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5292 "ASSOC TIMEOUT"); 5293 } else if (event->u.mlme.data == AUTH_EVENT) { 5294 if (event->u.mlme.status == MLME_DENIED) 5295 CHECK_MLME_TRIGGER(stop_auth_denied, 5296 "DENIED AUTH: reason %d", 5297 event->u.mlme.reason); 5298 else if (event->u.mlme.status == MLME_TIMEOUT) 5299 CHECK_MLME_TRIGGER(stop_auth_timeout, 5300 "AUTH TIMEOUT"); 5301 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5302 CHECK_MLME_TRIGGER(stop_rx_deauth, 5303 "DEAUTH RX %d", event->u.mlme.reason); 5304 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5305 CHECK_MLME_TRIGGER(stop_tx_deauth, 5306 "DEAUTH TX %d", event->u.mlme.reason); 5307 } 5308 #undef CHECK_MLME_TRIGGER 5309 } 5310 5311 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5312 struct ieee80211_vif *vif, 5313 const struct ieee80211_event *event) 5314 { 5315 struct iwl_fw_dbg_trigger_tlv *trig; 5316 struct iwl_fw_dbg_trigger_ba *ba_trig; 5317 5318 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5319 FW_DBG_TRIGGER_BA); 5320 if (!trig) 5321 return; 5322 5323 ba_trig = (void *)trig->data; 5324 5325 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5326 return; 5327 5328 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5329 "BAR received from %pM, tid %d, ssn %d", 5330 event->u.ba.sta->addr, event->u.ba.tid, 5331 event->u.ba.ssn); 5332 } 5333 5334 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5335 struct ieee80211_vif *vif, 5336 const struct ieee80211_event *event) 5337 { 5338 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5339 5340 switch (event->type) { 5341 case MLME_EVENT: 5342 iwl_mvm_event_mlme_callback(mvm, vif, event); 5343 break; 5344 case BAR_RX_EVENT: 5345 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5346 break; 5347 case BA_FRAME_TIMEOUT: 5348 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5349 event->u.ba.tid); 5350 break; 5351 default: 5352 break; 5353 } 5354 } 5355 5356 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5357 enum iwl_mvm_rxq_notif_type type, 5358 bool sync, 5359 const void *data, u32 size) 5360 { 5361 struct { 5362 struct iwl_rxq_sync_cmd cmd; 5363 struct iwl_mvm_internal_rxq_notif notif; 5364 } __packed cmd = { 5365 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 5366 .cmd.count = 5367 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 5368 size), 5369 .notif.type = type, 5370 .notif.sync = sync, 5371 }; 5372 struct iwl_host_cmd hcmd = { 5373 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 5374 .data[0] = &cmd, 5375 .len[0] = sizeof(cmd), 5376 .data[1] = data, 5377 .len[1] = size, 5378 .flags = sync ? 0 : CMD_ASYNC, 5379 }; 5380 int ret; 5381 5382 /* size must be a multiple of DWORD */ 5383 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 5384 return; 5385 5386 if (!iwl_mvm_has_new_rx_api(mvm)) 5387 return; 5388 5389 if (sync) { 5390 cmd.notif.cookie = mvm->queue_sync_cookie; 5391 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 5392 } 5393 5394 ret = iwl_mvm_send_cmd(mvm, &hcmd); 5395 if (ret) { 5396 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5397 goto out; 5398 } 5399 5400 if (sync) { 5401 lockdep_assert_held(&mvm->mutex); 5402 ret = wait_event_timeout(mvm->rx_sync_waitq, 5403 READ_ONCE(mvm->queue_sync_state) == 0 || 5404 iwl_mvm_is_radio_killed(mvm), 5405 HZ); 5406 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 5407 "queue sync: failed to sync, state is 0x%lx\n", 5408 mvm->queue_sync_state); 5409 } 5410 5411 out: 5412 if (sync) { 5413 mvm->queue_sync_state = 0; 5414 mvm->queue_sync_cookie++; 5415 } 5416 } 5417 5418 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5419 { 5420 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5421 5422 mutex_lock(&mvm->mutex); 5423 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 5424 mutex_unlock(&mvm->mutex); 5425 } 5426 5427 static int 5428 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5429 struct ieee80211_vif *vif, 5430 struct cfg80211_ftm_responder_stats *stats) 5431 { 5432 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5433 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5434 5435 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5436 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5437 return -EINVAL; 5438 5439 mutex_lock(&mvm->mutex); 5440 *stats = mvm->ftm_resp_stats; 5441 mutex_unlock(&mvm->mutex); 5442 5443 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5444 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5445 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5446 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5447 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5448 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5449 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5450 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5451 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5452 5453 return 0; 5454 } 5455 5456 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5457 struct ieee80211_vif *vif, 5458 struct cfg80211_pmsr_request *request) 5459 { 5460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5461 int ret; 5462 5463 mutex_lock(&mvm->mutex); 5464 ret = iwl_mvm_ftm_start(mvm, vif, request); 5465 mutex_unlock(&mvm->mutex); 5466 5467 return ret; 5468 } 5469 5470 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5471 struct ieee80211_vif *vif, 5472 struct cfg80211_pmsr_request *request) 5473 { 5474 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5475 5476 mutex_lock(&mvm->mutex); 5477 iwl_mvm_ftm_abort(mvm, request); 5478 mutex_unlock(&mvm->mutex); 5479 } 5480 5481 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5482 { 5483 u8 protocol = ip_hdr(skb)->protocol; 5484 5485 if (!IS_ENABLED(CONFIG_INET)) 5486 return false; 5487 5488 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5489 } 5490 5491 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5492 struct sk_buff *head, 5493 struct sk_buff *skb) 5494 { 5495 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5496 5497 /* For now don't aggregate IPv6 in AMSDU */ 5498 if (skb->protocol != htons(ETH_P_IP)) 5499 return false; 5500 5501 if (!iwl_mvm_is_csum_supported(mvm)) 5502 return true; 5503 5504 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5505 } 5506 5507 const struct ieee80211_ops iwl_mvm_hw_ops = { 5508 .tx = iwl_mvm_mac_tx, 5509 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5510 .ampdu_action = iwl_mvm_mac_ampdu_action, 5511 .get_antenna = iwl_mvm_op_get_antenna, 5512 .start = iwl_mvm_mac_start, 5513 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5514 .stop = iwl_mvm_mac_stop, 5515 .add_interface = iwl_mvm_mac_add_interface, 5516 .remove_interface = iwl_mvm_mac_remove_interface, 5517 .config = iwl_mvm_mac_config, 5518 .prepare_multicast = iwl_mvm_prepare_multicast, 5519 .configure_filter = iwl_mvm_configure_filter, 5520 .config_iface_filter = iwl_mvm_config_iface_filter, 5521 .bss_info_changed = iwl_mvm_bss_info_changed, 5522 .hw_scan = iwl_mvm_mac_hw_scan, 5523 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5524 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5525 .sta_state = iwl_mvm_mac_sta_state, 5526 .sta_notify = iwl_mvm_mac_sta_notify, 5527 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5528 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5529 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5530 .sta_rc_update = iwl_mvm_sta_rc_update, 5531 .conf_tx = iwl_mvm_mac_conf_tx, 5532 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5533 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 5534 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5535 .flush = iwl_mvm_mac_flush, 5536 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5537 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5538 .set_key = iwl_mvm_mac_set_key, 5539 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5540 .remain_on_channel = iwl_mvm_roc, 5541 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5542 .add_chanctx = iwl_mvm_add_chanctx, 5543 .remove_chanctx = iwl_mvm_remove_chanctx, 5544 .change_chanctx = iwl_mvm_change_chanctx, 5545 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5546 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5547 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5548 5549 .start_ap = iwl_mvm_start_ap_ibss, 5550 .stop_ap = iwl_mvm_stop_ap_ibss, 5551 .join_ibss = iwl_mvm_start_ap_ibss, 5552 .leave_ibss = iwl_mvm_stop_ap_ibss, 5553 5554 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5555 5556 .set_tim = iwl_mvm_set_tim, 5557 5558 .channel_switch = iwl_mvm_channel_switch, 5559 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5560 .post_channel_switch = iwl_mvm_post_channel_switch, 5561 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5562 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5563 5564 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5565 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5566 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5567 5568 .event_callback = iwl_mvm_mac_event_callback, 5569 5570 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5571 5572 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5573 5574 #ifdef CONFIG_PM_SLEEP 5575 /* look at d3.c */ 5576 .suspend = iwl_mvm_suspend, 5577 .resume = iwl_mvm_resume, 5578 .set_wakeup = iwl_mvm_set_wakeup, 5579 .set_rekey_data = iwl_mvm_set_rekey_data, 5580 #if IS_ENABLED(CONFIG_IPV6) 5581 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5582 #endif 5583 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5584 #endif 5585 .get_survey = iwl_mvm_mac_get_survey, 5586 .sta_statistics = iwl_mvm_mac_sta_statistics, 5587 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5588 .start_pmsr = iwl_mvm_start_pmsr, 5589 .abort_pmsr = iwl_mvm_abort_pmsr, 5590 5591 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5592 #ifdef CONFIG_IWLWIFI_DEBUGFS 5593 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5594 #endif 5595 }; 5596